Agenda packet, regular meeting — Moreno Valley City Council, December 19, 2023 (part 5 of 12)

Mammals
Antrozous
pallidus
pallid bat None/SSC None Grasslands, shrublands, woodlands, forests; most common in open, dry
habitats with rocky outcrops for
roosting, but also roosts in manmade structures and trees.

Low potential to roost, moderate
potential to forage. The study area
supports marginal rocky outcrops and
trees for roosting. Open grassland and
shrublands present for foraging.

Chaetodipus
fallax fallax
northwestern
San Diego
pocket mouse
None/SSC Covered Coastal scrub, mixed chaparral,
sagebrush, desert wash, desert
scrub, desert succulent shrub,
pinyon–juniper, and annual
grassland.

Low potential to occur. The study area
is within the elevation range for this
species and supports coastal scrub
and annual grassland habitat suitable
for this species; however, no small
mammal burrows were observed on
the project site. The nearest
occurrence is approximately 3.1 miles
south of the site (CDFW 2018).

Dipodomys
merriami parvus
San Bernardino
kangaroo rat
FE/SSC Covered Sparse scrub habitat, alluvial
scrub/coastal scrub habitats on
gravelly and sandy soils near river
and stream terraces
Low potential to occur. Sparse scrub
habitat; however, alluvial habitat near
river and stream terraces are absent.

The nearest occurrence is
approximately 3.3 miles north of the
site (CDFW 2018).

Dipodomys
stephensi
Stephens’
kangaroo rat
FE/ST Covered Annual and perennial grassland
habitats, coastal scrub or
sagebrush with sparse canopy
cover, or in disturbed areas.

Moderate potential to occur. The study
area is within the elevation range for
this species and supports grassland
habitat suitable for this species.

However, no small mammal burrows
were observed on the project site. Two
historic occurrences (1988) partially
overlap the outer edges of the study
area.

F.1.c
Packet Pg. 730 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

ATTACHMENT F / SPECIAL-STATUS WILDLIFE SPECIES DETECTED OR POTENTIALLY OCCURRING IN THE STUDY AREA 11675 F-7 OCTOBER 2022
Scientific
Name
Common
Name
Status
(Federal/State) MSHCP Habitat Potential to Occur
Eumops perotis
californicus
western mastiff
bat
None/SSC None Chaparral, coastal and desert
scrub, coniferous and deciduous
forest and woodland; roosts in
crevices in rocky canyons and cliffs
where the canyon or cliff is vertical
or nearly vertical, trees, and
tunnels.

Not expected to roost, moderate
potential to forage. No suitable
canyons or cliffs are present for
roosting. Suitable habitat (coastal
scrub) is present for foraging.

Lasiurus
xanthinus
western yellow
bat
None/SSC None Valley–foothill riparian, desert
riparian, desert wash, and palm
oasis habitats; below 2,000 feet
above mean sea level; roosts in
riparian and palms.

Not expected to roost or forage. The
study does not contain riparian habitat,
desert wash, or palm habitat suitable
for this species.

Lepus
californicus
bennettii
San Diego
black-tailed
jackrabbit
None/SSC Covered Arid habitats with open ground;
grasslands, coastal scrub,
agriculture, disturbed areas, and
rangelands.

Low potential to occur. The study area
contains open grasslands and coastal
scrub suitable for this species;
however, the site is located
immediately adjacent to an urbanized
area. The nearest occurrence is 5.5
miles east of the site (CDFW 2019).

Neotoma lepida
intermedia
San Diego
desert woodrat
None/SSC Covered Coastal scrub, desert scrub,
chaparral, cacti, rocky areas.

Low potential to occur. The study area
supports suitable coastal scrub and
rock habitat for this species; however,
no woodrat middens were observed
within the project site and the nearest
occurrence is approximately 7.8 miles
south of the site (CDFW 2019).

Nyctinomops
femorosaccus
pocketed freetailed bat
None/SSC None Pinyon–juniper woodlands, desert
scrub, desert succulent shrub,
desert riparian, desert wash, alkali
desert scrub, Joshua tree, and palm
oases; roosts in high cliffs or rock
outcrops with dropoffs, caverns,
and buildings.

Not expected to occur. The study area
does not support desert riparian or
desert wash habitats suitable for this
species.

F.1.c
Packet Pg. 731 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

ATTACHMENT F / SPECIAL-STATUS WILDLIFE SPECIES DETECTED OR POTENTIALLY OCCURRING IN THE STUDY AREA 11675 F-8 OCTOBER 2022
Scientific
Name
Common
Name
Status
(Federal/State) MSHCP Habitat Potential to Occur
Onychomys
torridus ramona
southern
grasshopper
mouse
None/SSC None Grassland and sparse coastal
scrub.

Low potential to occur. The study area
supports suitable grassland and
coastal habitat for this species.

However, no small mammal burrows
were observed on the project site. The
nearest occurrence is approximately

2.7 miles south of the site (CDFW
2019).

Perognathus
longimembris
brevinasus
Los Angeles
pocket mouse
None/SSC Covered Lower-elevation grassland, alluvial
sage scrub, and coastal scrub.

Low potential to occur. The study area
supports suitable grassland and coastal
scrub habitat for this species. However,
no small mammal burrows were
observed on the project site. The nearest
occurrence is approximately 2.9 east of
the site (CDFW 2019).

Taxidea taxus American
badger
None/SSC None Dry, open, treeless areas;
grasslands, coastal scrub,
agriculture, and pastures, especially
with friable soils
Low potential to occur. The study area
does support sparse grassland habitat
with fine sandy soils; however, no small
mammal burrows were observed on
the project site and the site is located
immediately adjacent to an urbanized
area.

Invertebrates
Euphydryas
editha quino
quino
checkerspot
butterfly
FE/None Covered Annual forblands, grassland, open
coastal scrub and chaparral; often
soils with cryptogamic crusts and
fine-textured clay; host plants
include Plantago erecta,
Antirrhinum coulterianum, and
Plantago patagonica (Silverado
Occurrence Complex)
Not expected to occur. The study area
supports suitable habitat (coastal
scrub and grasslands), but lacks
cryptogamic crusts or clay soils.

Additionally, no known host plants are
present on the project site. The nearest
occurrence is approximately 11.1 miles
south of the site (CDFW 2019).

Rhaphiomidas
terminatus
abdominalis
Delhi Sands
flower-loving fly
FE/None Covered Delhi fine sandy soils and dunes,
scrub and ruderal vegetation in the
sand verbena series with <50%
cover
Not expected to occur. The study area
lacks Delhi fine sandy soils to support
this species.

F.1.c
Packet Pg. 732 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

ATTACHMENT F / SPECIAL-STATUS WILDLIFE SPECIES DETECTED OR POTENTIALLY OCCURRING IN THE STUDY AREA 11675 F-9 OCTOBER 2022
Scientific
Name
Common
Name
Status
(Federal/State) MSHCP Habitat Potential to Occur
Streptocephalus
woottoni
Riverside fairy
shrimp
FE/None Covered Vernal pools, non-vegetated
ephemeral pools
Not expected to occur. The study area
does not support vernal pools suitable
for this species; however, the project
site contains topographic variation that
could lead to pooling and two pools of
standing water were detected during
the February 2019 site visit. However,
these features were visited on March
13, 2019 after adequate rainfall to
verify if these features held water for 7
days. The results of this visit confirmed
these features were dry and therefore
did not hold water for 7 days. These
results in conjunction with the soils
being well draining and not susceptible
to prolonged inundation, this species is
not expected to occur. The nearest
occurrence is approximately 3.9 miles
southeast of the site (CDFW 2019).

Status Legend
Federal
FD: Federally delisted; monitored for 5 years
FE: Federally listed as endangered
FT: Federally listed as threatened
State
FP: CDFW Fully Protected Species
SE: State listed as endangered
ST: State listed as threatened
SSC: California Species of Special Concern
MSHCP: Western Riverside County Multiple Species Conservation Plan F.1.c
Packet Pg. 733 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

ATTACHMENT F / SPECIAL-STATUS WILDLIFE SPECIES DETECTED OR POTENTIALLY OCCURRING IN

THE STUDY AREA
11675 F-10 OCTOBER 2022

INTENTIONALLY LEFT BLANK
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Packet Pg. 734 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) October 21, 2022 11675
Shizao Zheng
1378 West Zhorgshan Road
Ningbo City, Zhejiang Province
China
Subject: Jurisdictional Waters Delineation Update Report for the Gateway Heights Project, City of Moreno Valley, Riverside County, California
Dear Mr. Zheng:

This report documents the results of an update to a jurisdictional waters delineation for the Gateway Heights Project (project). This report was initially submitted in 2019 but has now been revised with an updated project name, footprint, and impact analysis. The 32.8-acre project site is comprised of Assessor’s Parcel Numbers 256-150-001 and 256- 040-009, as well as rights-of-way and is located north of Jennings Court and east of Morton Road in Riverside County (Figure 1, Project Location; figures are provided in Attachment A). The proposed project includes the residential development of 108 detached condominium units, parking, open space, utility lines, fuel modification zones, and storm drain lines. The study area consists of the proposed project and a 50-foot buffer. The project also includes an undercrossing beneath Morton Road. The collection system will begin on the east side of Morton Road and consist of a concrete lined drop in the channel bottom and concrete headwall structure to result in no increase to water surface elevation. As a result of negotiations with adjacent landowners, two alternatives for the outlet structure are proposed. In Alternative 1, the outlet structure will cross Morton Road directly across the street from the proposed Project into an existing channel. (Figure 2A, Alternative 1 Site Plan) In Alternative 2, the outfall structure will travel south along Morton Road for approximately 170 feet before depositing into an existing channel on the west side of Morton Road south of its intersection with Jennings Court (Figure 2B, Alternative 2 Site Plan). The headwall and concrete spillway will extend for approximately 40 feet. To aid in reducing downstream erosion, a rip rap apron will extend for an additional 40 feet. Photos of the jurisdictional features are provided in Attachment B.

Development of the project site was previously proposed by Kincaid Development as Tentative Tract 33626, for which a mitigated negative declaration was prepared in accordance with the California Environmental Quality Act (CEQA) and approved by the City of Moreno Valley on December 20, 2007. A Delineation of Jurisdictional Waters and Wetlands report was prepared in October 2007 (Archer 2007) in support of the CEQA document for Tentative Tract 33626.

Tentative Tract 33626 has since expired and an updated site plan and CEQA document is being prepared. This letter report serves as an update to the 2007 Delineation of Jurisdictional Waters and Wetlands report and relies upon the 2007 report, provided as Attachment C, for background and existing conditions information.

This letter report is intended to (1) describe the existing conditions of jurisdictional waters within the study area, (2) quantify impacts to jurisdictional waters that would result from implementation of the proposed project, and (3) provide a discussion of potential water resource permits required for construction of the project.

F.1.c
Packet Pg. 735 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TO: SHIZAO ZHENG
SUBJECT:JURISDICTIONAL WATERS DELINEATION UPDATE REPORT FOR THE GATEWAY HEIGHTS PROJECT,

CITY OF MORENO VALLEY, RIVERSIDE COUNTY, CALIFORNIA
11675 2 OCTOBER 2022
1 Methods

1.1 Literature Review
The following available resources were reviewed to assess the potential for jurisdictional waters: aerial photographs (Google Earth 2019; Historic Aerials 2019); the U.S. Geological Survey 7.5-minute topographic quadrangle (USGS 2019); a Natural Resources Conservation Service soil map (USDA 2019); U.S. Environmental Protection Agency Watershed Assessment, Tracking & Environmental Results System (EPA 2019), which includes the National Hydrography Dataset; and the National Wetland Inventory (USFWS 2019).

The 2007 Delineation of Jurisdictional Waters and Wetlands was reviewed and relied upon for background and existing conditions information and is included within Attachment C of this report.

1.2 Jurisdictional Delineation
On February 22, 2019, Dudek biologists Anna Cassady and Britney Strittmater updated a delineation of jurisdictional waters within the proposed project, including a 50-foot buffer (study area), where access was available. Dudek Biologist Tracy Park conducted a biological survey of the study area associated with Alternative 2 on September 21, 2022, from 1:30 p.m. to 3:25 p.m. The study area was surveyed on foot and was surveyed for the following types of features:
▪ Waters of the United States, including wetlands, under the jurisdiction of the U.S. Army Corps of Engineers (USACE), pursuant to Section 404 of the federal Clean Water Act ▪ Waters of the state under the jurisdiction of the California Regional Water Quality Control Board (RWQCB), pursuant to Section 401 of the federal Clean Water Act and the Porter-Cologne Water Quality Control Act, as wetlands or drainages
▪ Streambeds under the jurisdiction of the California Department of Fish and Wildlife (CDFW), pursuant to Section 1602 of the California Fish and Game Code
Non-wetland waters of the United States were delineated based on the presence of an ordinary high water mark (OHWM) as determined using the methodology in A Field Guide to the Identification of the Ordinary High Water Mark (OHWM) in the Arid West Region of the Western United States (USACE 2008a). The 2015 Clean Water Rule excludes “erosional features, including gullies, rills, and ephemeral features such as ephemeral streams that do not have bed and banks and ordinary high water mark” as “Waters of the United States” (80 FR 37053). Wetland waters of the United States were delineated based on methodology described in the 1987 Corps of Engineers Wetland Delineation Manual (USACE 1987) and the USACE Regional Supplement (USACE 2008b). Pursuant to the federal Clean Water Act, wetland waters of the United States include those supporting all three wetlands criteria described in the USACE manual: hydric soils, hydrology, and hydrophytic vegetation.

Areas regulated by the RWQCB are generally coincident with waters of the United States regulated by the USACE, but can also include isolated waters of the state that have evidence of surface water inundation pursuant to the state Porter-Cologne Water Quality Control Act. Isolated features are delineated at the OHWM, at the outer limits of hydrophytic vegetation, or at the outer rim of depressional features if relevant. The State Wetland Definition and Procedures for Discharges of Dredged or Fill Material to Waters of the State (State Water Resources Control Board F.1.c
Packet Pg. 736 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TO: SHIZAO ZHENG
SUBJECT:JURISDICTIONAL WATERS DELINEATION UPDATE REPORT FOR THE GATEWAY HEIGHTS PROJECT,

CITY OF MORENO VALLEY, RIVERSIDE COUNTY, CALIFORNIA
11675 3 OCTOBER 2022
2019) also implements the three parameters criteria (hydric soils, hydrology, and hydrophytic vegetation) for delineating wetland waters of the state.

Streambeds are typically delineated from top of bank to top of bank or the extent of associated riparian vegetation beyond the top of bank. For shallow drainages and washes that do not support riparian vegetation, the top-of-bank measurement may be the same as the OHWM measurement.

A map of the jurisdictional waters from the Delineation of Jurisdictional Waters and Wetlands prepared by Linda Archer in 2007 was reviewed in the field (Attachment C). All features mapped were reviewed and the project footprint was walked on foot to confirm jurisdictional waters mapped matched existing conditions. Updates to the boundaries of jurisdictional waters were made based on current existing conditions. Since none of the features meet the minimum criteria for wetland vegetation or hydrology, soils were not sampled. Photos of the jurisdictional features were taken in accordance with USACE guidelines and are provided in Attachment B. 2 Results of Survey
In 2007, as described in the Delineation of Jurisdictional Waters and Wetlands report (Attachment C), five features within the project site were determined to be jurisdictional waters: Drainage 1, Tributary 1, and Seeps 1 through 3.

The 2007 report determined Drainage 1 to be waters of the United States under the jurisdiction of USACE, RWQCB, and CDFW. Tributary 1 was determined to be waters of the State under the jurisdiction of RWQCB and CDFW based on a significant nexus analysis. Three seeps were determined to be isolated waters under the jurisdiction of RWQCB.

A non-jurisdictional upland swale was also mapped within the project site.

As further described below, Drainage 1 and Tributary 1 were identified within the study area during the 2019 survey and determined to be waters of the United States under the jurisdiction of USACE, RWQCB, and CDFW. The three seeps were not present at the time of the 2019 survey. Two features, Drainage 2 and Tributary 2, which were not delineated in 2007 as they were outside the impact area, were mapped during the 2019 survey as waters of the United States. Finally, several swales and erosional features were identified within the study area and determined to not be jurisdictional waters.

The 2019 limits of jurisdictional waters are provided in Figure 2, Jurisdictional Delineation. Representative photos are provided in Attachment B. Table 1 provides an acreages list of jurisdictional waters.

2.1 Jurisdictional Waters
Drainage 1
As discussed in the Delineation of Jurisdictional Waters and Wetlands report (Attachment C), Drainage 1 is an ephemeral drainage occurring along the southeastern project boundary. It originates off site in the hills to the northeast and flows southwest, meandering on and off site and ultimately flowing off site at the southwest corner of the project boundary and connecting to Box Springs Canyon Wash approximately 0.5 miles southwest of the study area. An OHWM is evident throughout most of the natural channel characterized by absence of vegetation, defined bed/bank, sediment deposition, and debris wracking. Within upstream portions of the channel the OHWM becomes obscured for short distances and includes evidence of sheet flow. Consistent with the 2007 delineation, an OHWM is not evident at the southern tip of the project, just north of Morton Road. Flows continue off site as sheetflow south along the west side of Morton Road. Flows F.1.c
Packet Pg. 737 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TO: SHIZAO ZHENG
SUBJECT:JURISDICTIONAL WATERS DELINEATION UPDATE REPORT FOR THE GATEWAY HEIGHTS PROJECT,

CITY OF MORENO VALLEY, RIVERSIDE COUNTY, CALIFORNIA
11675 4 OCTOBER 2022
cross Morton Road following road-grading contours as discussed in Attachment C, ultimately connecting to Box Springs Canyon Wash, which flows to the Santa Ana River. The OHWM averages 1 to 6 feet in width.

Scattered vegetation throughout the drainage included upland species such as common Mediterranean grass (Schismus barbatus), bromes (Bromus spp.), redstem stork’s bill (Erodium cicutarium), cheeseweed mallow (Malva parviflora), common fiddleneck (Amsinckia intermedia), and Tournefort's mustard (Brassica tournefortii). A single mulefat (Baccaris salififolia; Facultative [FAC]) and two California sycamores (Platanus racemosa; FAC) were observed within the downstream portions of the channel; however, these were not dominant species and did not meet the hydrophytic vegetation criteria to be considered a wetland.

Drainage 1 supports an OHWM and connects to Box Springs Canyon Wash, which ultimately flows to the Santa Ana River, which continues west, flowing into the Pacific Ocean. Based on the presence of OHWM indicators and connectivity to a waters of the United States, Drainage 1 was determined to be non-wetland waters of the United States under the jurisdiction of the USACE and RWQCB, and a streambed under the jurisdiction of CDFW.

Tributary 1
Tributary 1, a tributary to Drainage 1, is an unvegetated ephemeral drainage. In 2007, this feature was observed to originate on site immediately south of the eucalyptus (Eucalyptus spp.) alliance. However, the 2019 delineation observed OHWM indicators approximately 120 feet northeast of the eucalyptus alliance. Due to the steep topography, the remainder of this feature was mapped based on topography to the northeastern end of the project boundary. This feature appears to originate off site in the hills to the northeast, flowing northeast to southwest and connecting to Drainage 1 within the southern portion of the project site. An intermittent OHWM is evident throughout most of the natural channel based on bed/bank, absence of vegetation, sediment deposition, and some shelving. There is an area where the OHWM became obscured for a short distance just south of the eucalyptus alliance where it appears some disturbance has occurred resulting in a dirt path. This area includes evidence of sheet flow; however, the OHWM becomes more defined within the brittlebush (Encelia farinosa) alliance immediately south. Due to this feature being mapped for a shorter distance in 2007, it appears to have become more defined over time. The OHWM averages 1 to 4 feet in width. Scattered vegetation throughout the drainage included upland species such as bromes, redstem stork’s bill, and common fiddleneck.

Tributary 1 supports an OHWM and connects to Box Springs Canyon Wash, which ultimately flows to the Santa Ana River, which continues west, flowing into the Pacific Ocean. As previously mentioned, the 2007 delineation determined Tributary 1 to be a waters of the state under the jurisdiction of RWQCB and CDFW, based on this feature being a second order tributary with no significant nexus. Since the 2007 delineation, changes have been implemented with respect to processing of jurisdictional determination. This delineation report is being prepared consistent with a Preliminary Jurisdictional Determination that does not include a significant nexus analysis.

Therefore, based on the presence of OHWM indicators and connectivity to waters of the United States, Tributary 1 was determined to be non-wetland waters of the United States under the jurisdiction of the USACE and RWQCB, and a streambed under the jurisdiction of CDFW.

Drainage 2
This feature was not mapped during the 2007 delineation due to it being outside of the development footprint. Drainage 2 is an ephemeral drainage located within the northwestern portion of the study area. This feature appears to originate to the northeast, outside of the study area, within Box Springs Mountain. Flows continue southwest outside of the study area for approximately 820 feet, continuing to flow as sheetflow west along Morton Road. Flows cross Morton Road and F.1.c
Packet Pg. 738 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TO: SHIZAO ZHENG
SUBJECT:JURISDICTIONAL WATERS DELINEATION UPDATE REPORT FOR THE GATEWAY HEIGHTS PROJECT,

CITY OF MORENO VALLEY, RIVERSIDE COUNTY, CALIFORNIA
11675 5 OCTOBER 2022
continue to flow west 0.45 miles under the railroad tracks through a culvert into Box Springs Canyon Wash. An OHWM is evident throughout most of the natural channel based on absence of vegetation, defined bed/bank, sediment deposition, shelving, and debris wracking. The OHWM averages 1 to 5 feet in width. The banks of the streambed were incised banks between 2 and 3 feet in height. Dominant vegetation outside of the OHWM included brittlebush.

Drainage 2 supports an OHWM and connects to Box Springs Canyon Wash, which ultimately flows to the Santa Ana River, which continues west, flowing into the Pacific Ocean. Based on the presence of OHWM indicators and connectivity to waters of the United States, Drainage 1 was determined to be potential non-wetland waters of the United States under the jurisdiction of the USACE and RWQCB, and a streambed under the jurisdiction of CDFW.

Tributary 2
This feature was not mapped during the 2007 delineation. Tributary 2 is located within the northwestern portion of the study area, originating from runoff from Box Springs Mountain. This feature is an unvegetated ephemeral drainage flowing northeast to southwest, originating off site and conveying flows to Drainage 2 within the northwest portion of the study area. The northern portion of this feature appears more erosional with deeply incised vertical banks approximately 3 feet in height; however, an intermittent OHWM is evident throughout most of the natural channel due to absence of vegetation, defined bed/bank, sediment deposition, and some debris wracking. There is an area where the OHWM became obscured for a short distance just west of the project site where it sheetflows across the dirt road; however, the OHWM becomes more defined within the brittlebush alliance immediately west. The OHWM averages 3 feet in width. Vegetation observed outside of the OHWM included brittlebush.

Tributary 2 supports an OHWM and connects to Box Springs Canyon Wash, which ultimately flows to the Santa Ana River, which continues west, flowing into the Pacific Ocean. Based on the presence of OHWM indicators and connectivity to waters of the United States, Tributary 2 was determined to be potential non-wetland waters of the United States under the jurisdiction of the USACE and RWQCB, and a streambed under the jurisdiction of CDFW.

2.2 Non-Jurisdictional Features
Upland Swales
An upland swale was mapped and discussed in the Delineation of Jurisdictional Waters and Wetlands report (Attachment C). This upland swale, hereafter referred to as Upland Swale 1, is described as a round-bottom feature with no OHWM. This feature appears to have become more incised and erosional since the 2007 delineation, with incised vertical banks approximately 2 to 3 feet in height. Runoff from a disturbed trail/road to the north appears to be contributing to the erosional nature of this feature and runoff conveyed by this feature terminates as sheetflow before reaching Tributary 1. Dense vegetation growth along the banks obscures this feature; this vegetation is comprised of brittlebush, common fiddleneck, and Tournefort’s mustard. Based on its characteristics as an erosional feature, this feature is not considered jurisdictional waters under USACE, RWQCB, or CDFW.

Upland Swale 2 was not mapped during the 2007 delineation. This feature is a round-bottom topographic feature and does not contain OHWM indicators; therefore, this feature is not considered to be jurisdictional waters under USACE, RWQCB, or CDFW.

F.1.c
Packet Pg. 739 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TO: SHIZAO ZHENG
SUBJECT:JURISDICTIONAL WATERS DELINEATION UPDATE REPORT FOR THE GATEWAY HEIGHTS PROJECT,

CITY OF MORENO VALLEY, RIVERSIDE COUNTY, CALIFORNIA
11675 6 OCTOBER 2022
Erosional Features
The study area contains five erosional features. Erosional Features 1, 2, 3, and 4 are located within the central portion of the study area and appear to be associated with the natural topography of the site in conjunction with the dirt roads present; they appear to flow northeast to southwest. These features are deeply incised with vertical shelves averaging 2 to 3 feet in height. Erosional Feature 5 is located within the northwestern portion of the study area. Runoff from Box Springs Mountain appears to be contributing to this feature, directing flows northeast to southwest. It is approximately 1 foot wide with vertical shelves average 2 feet in height.

Erosional features are not considered to be jurisdictional waters under USACE, RWQCB, or CDFW.

Seeps
Three seeps were identified during the 2007 jurisdictional delineation, two within the project site and one off site. The jurisdictional delineation update did not locate any of these features during the February 2019 site visit. The approximate locations of the seeps were investigated and no saturation, standing water, or hydrophytic vegetation such as cattails (Typha spp.) or arroyo willow (Salix laseolepis) were observed. It is presumed that due to the time elapsed since the 2007 delineation and extended drought conditions, these areas are no longer supporting a high enough groundwater table to support hydrophytic vegetation or hydrology. Furthermore, the area received above average rainfall, with 3.78 inches of rain in February 2019. Specifically, the Riverside weather station located just southwest of the Interstate 215 and State Route 60 interchange received 1.10 inches on February 15, 2019, and

1.39 inches on February 14, 2019 (NRCS 2019). Based on this, it would have been evident if any depressions capable of retaining water were present. Therefore, it assumed the three seeps identified in 2007 are no longer present.

2.3 Jurisdictional Delineation Conclusion
The results of the updated jurisdictional delineation concluded there are approximately 0.29 acres of potential non-wetland waters of the United States under the jurisdiction of USACE and the RWQCB, and a streambed under the jurisdiction of CDFW. Table 1 summarizes the total acreage of these features within the study area. The features are depicted on Figure 2.

Table 1. Summary of Jurisdictional Waters within the Study Area Feature
Vegetation
Community and/or
Land Cover
Non-Wetland Waters of the United
States and State
(USACE/RWQCB/CDFW)
(Acres/Linear Feet)
Total Acreage/ Linear
Feet*
Drainage 1 Brittlebush (Encelia
farinosa) Alliance

0.01/210 0.01/210
California Annual
Grassland Alliance

0.12/1,316 0.12/1,316
Eucalyptus (Eucalyptus
spp.) Alliance

0.01/188 0.01/188
Drainage 1 USACE/RWQCB/CDFW Total 0.15/1,714
F.1.c
Packet Pg. 740 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TO: SHIZAO ZHENG
SUBJECT:JURISDICTIONAL WATERS DELINEATION UPDATE REPORT FOR THE GATEWAY HEIGHTS PROJECT,

CITY OF MORENO VALLEY, RIVERSIDE COUNTY, CALIFORNIA
11675 7 OCTOBER 2022
Table 1. Summary of Jurisdictional Waters within the Study Area Feature
Vegetation
Community and/or
Land Cover
Non-Wetland Waters of the United
States and State
(USACE/RWQCB/CDFW)
(Acres/Linear Feet)
Total Acreage/ Linear
Feet*
Tributary 1 Brittlebush Alliance 0.08/1,054 0.08/1,054
California Annual
Grassland Alliance

0.02/415 0.02/415
Eucalyptus Alliance 0.01/250 0.01/250
Tributary 1 USACE/RWQCB/CDFW Total 0.11/1,720
Drainage 2 Brittlebush Alliance 0.03/406 0.03/406
Disturbed Habitat <0.01/17 <0.01/17
Drainage 2 USACE/RWQCB/CDFW Total 0.03/423
Tributary 2 Brittlebush Alliance 0.01/112 0.01/112
Tributary 2 USACE/RWQCB/CDFW Total 0.01/112
Grand Total* 0.29/4,014
Notes:
* Acreage may not total due to rounding.

USACE = U.S. Army Corps of Engineers; RWQCB = Regional Water Quality Control Board; CDFW = California Department of Fish and Wildlife. 3 Impacts
The proposed project would construct a new residential development that would result in permanent impacts from construction of new residential homes and associated infrastructure. All potentially jurisdictional waters within the impact footprint were considered permanently impacted. No temporary impacts would result from the proposed project.

The permanent impacts to potential jurisdictional waters are summarized in Table 2 and depicted on Figure 3, Project Impacts. According to the draft Project Specific Water Quality Management Plan (Sikand Engineering Associates 2019), flows from Tributary 1, in addition to runoff from Box Springs Mountain, will be directed to a debris basin located within the northern portion of the proposed development. Stormwater within the project site will be directed and discharged into a water quality basin at the southwest corner of the project site.

The project also includes a 100-foot fuel modification zone that will protect most of the development units. In areas where the fuel modification zone encroaches on jurisdictional waters, the fuel modification zone would be modified to avoid direct impacts to these resources (Dudek 2021).

Table 2. Permanent Impacts to Jurisdictional Waters within the Project Site Feature
Vegetation Community
and/or Land Cover
Alternative 1 Non-Wetland
Waters of the United
States and State
(USACE/RWQCB/
CDFW) (Acres/Linear
Feet) *
Alternative 2 Non-Wetland
Waters of the United States
and State (USACE/RWQCB/
CDFW) (Acres/Linear Feet) *
Drainage 1 Brittlebush (Encelia
farinosa) Alliance
― ―
F.1.c
Packet Pg. 741 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TO: SHIZAO ZHENG
SUBJECT:JURISDICTIONAL WATERS DELINEATION UPDATE REPORT FOR THE GATEWAY HEIGHTS PROJECT,

CITY OF MORENO VALLEY, RIVERSIDE COUNTY, CALIFORNIA
11675 8 OCTOBER 2022
Table 2. Permanent Impacts to Jurisdictional Waters within the Project Site Feature
Vegetation Community
and/or Land Cover
Alternative 1 Non-Wetland
Waters of the United
States and State
(USACE/RWQCB/
CDFW) (Acres/Linear
Feet) *
Alternative 2 Non-Wetland
Waters of the United States
and State (USACE/RWQCB/
CDFW) (Acres/Linear Feet) *
California Annual
Grassland Alliance

0.01/38 0.01/76
Eucalyptus (Eucalyptus
spp.) Alliance
― <0.01/24
Disturbed Habitat ― ―
Urban/Developed ― ―
Drainage 1 USACE/RWQCB/CDFW Total 0.01/38 0.01/100
Tributary 1 Brittlebush Alliance 0.02/307 0.02/307
California Annual
Grassland Alliance

0.01/284 0.01/284
Eucalyptus Alliance <0.01/82 <0.01/82
Tributary 1 USACE/RWQCB/CDFW Total 0.03/674 0.03/674
Drainage 2 Brittlebush Alliance ― ―
Disturbed Habitat ― ―
Drainage 2 USACE/RWQCB/CDFW Total ― ―
Tributary 2 Brittlebush Alliance ― ―
Tributary 2 USACE/RWQCB/CDFW Total ― ―
Grand Total* 0.04/712 0.05/774
Notes:
* Acreage may not total due to rounding.

USACE = U.S. Army Corps of Engineers; RWQCB = Regional Water Quality Control Board; CDFW = California Department of Fish and Wildlife.
4 Conclusion
The proposed project includes the residential development of Gateway Heights and other project activities would impact jurisdictional waters.

The USACE requires a permit pursuant to Section 404 of the Clean Water Act (404 permit) prior to discharging fill into waters of the United States. Impacts associated with residential development projects are covered under Nationwide Permit 29, so long as impacts do not exceed 0.5 acres of waters of the United States. A pre-construction notification to the USACE is required for use of Nationwide Permit 29. A Water Quality Certification is required from the RWQCB pursuant to Section 401 of the Clean Water Act (401 Certification) for any federal action, including a F.1.c
Packet Pg. 742 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TO: SHIZAO ZHENG
SUBJECT:JURISDICTIONAL WATERS DELINEATION UPDATE REPORT FOR THE GATEWAY HEIGHTS PROJECT,

CITY OF MORENO VALLEY, RIVERSIDE COUNTY, CALIFORNIA
11675 9 OCTOBER 2022
404 permit; therefore, an application for a 401 Certification must be submitted to the RWQCB. A notification of a Streambed Alteration Agreement to CDFW is also required prior to modification of jurisdictional streambeds.

Mitigation will be required for permanent loss of waters or functions and values of waters.

Should you have any questions regarding this report or require additional information, please do not hesitate to contact me at 951.300.1088 or [email protected].

Sincerely,
______________________________
Anna Cassady
Biologist
Att.: Attachment A – Figures
Attachment B – Site Photos
Attachment C – Delineation of Jurisdictional Waters and Wetlands 5 References
Dudek. 2021. “Gateway Heights Project Fire Hazard Analysis and Approach. October 19, 2021.

EPA (U.S. Environmental Protection Agency). 2019. “Watershed Assessment, Tracking & Environmental Results (WATERS).” Last updated December 15, 2017. Accessed February 2019. https://www.epa.gov /waterdata/viewing-waters-data-using-google-earth.

Google Earth. 2019. Aerial photograph. 1:200 scale.

Historic Aerials. 2019. www.historicaerials.com.

NRCS (Natural Resources Conservation Service). 2019. “AgACIS for Riverside County.” Accessed February 2019. http://agacis.rcc-acis.org/?fips=06065.

Sikand Engineering Associates. 2019. Project Specific Water Quality Management Plan. Draft. Prepared for Shizao Zheng. Revised September 15, 2018.

State Water Resources Control Board. State Wetland Definition and Procedures for Discharges of Dredged or Fill Material to Waters of the State. Final Draft. Sacramento, California: State Water Resources Control Board. February 22, 2019.

USDA (U.S. Department of Agriculture). 2019. Web Soil Survey. USDA, Natural Resources Conservation Service.

Last updated August 21, 2017. Accessed February 2019. http://websoilsurvey.nrcs.usda.gov.

USACE (U.S. Army Corps of Engineers). 1987. Corps of Engineers Wetland Delineation Manual. Online ed.

Environmental Laboratory, Wetlands Research Program Technical Report Y-87-1. Vicksburg, Mississippi:

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Packet Pg. 743 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TO: SHIZAO ZHENG
SUBJECT:JURISDICTIONAL WATERS DELINEATION UPDATE REPORT FOR THE GATEWAY HEIGHTS PROJECT,

CITY OF MORENO VALLEY, RIVERSIDE COUNTY, CALIFORNIA
11675 10 OCTOBER 2022
U.S. Army Engineer Waterways Experiment Station. January 1987. Accessed February 2019. http://www.fedcenter.gov/Bookmarks/index.cfm?id=6403&pge_id=1606.

USACE. 2008a. A Field Guide to the Identification of the Ordinary High Water Mark (OHWM) in the Arid West Region of the Western United States: A Delineation Manual. Cold Region Research and Environmental Laboratory, ERDC/CRREL TR-08-12. Hanover, New Hampshire: U.S. Army Engineer Research and Development Center. August 2008.

USACE. 2008b. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Arid West Region (Version 2.0). Environmental Laboratory, ERDC/EL TR-08-28. Vicksburg, Mississippi: U.S. Army Engineer Research and Development Center. September 2008. Accessed February 2019. http://www.usace.army.mil/CECW
/Pages/reg_supp.aspx.

USFWS (U.S. Fish and Wildlife Service). 2019. “National Wetland Inventory.” Last updated October 17, 2018.

Accessed February 2019. http://www.fws.gov/wetlands/Data/Mapper.html.

USGS (U.S. Geological Survey). 2019. National Hydrography Dataset. https://www.usgs.gov/core-science-systems /ngp/national-hydrography.

F.1.c
Packet Pg. 744 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Attachment A
Figures
F.1.c
Packet Pg. 745 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Attachment B
Site Photos
F.1.c
Packet Pg. 746 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Attachment C
Delineation of Jurisdictional Waters and Wetlands
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Packet Pg. 747 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) 5 Hutton Centre Drive
Suite 300
Santa Ana, CA 92707
Tel 714.751.7373
Fax 714.545.8883
www.Psomas.com
July 6, 2021
Jason Ackerman VIA EMAIL
Ackerman Law PC [email protected]
3200 E. Guasti Road, Suite 100
Ontario, California 91761
Subject: Results of Special Status Plant Surveys for the Gateway Heights Project in the City of Moreno Valley, Riverside County, California
Dear Mr. Ackerman:

This Letter Report presents the findings of special status plant surveys conducted in 2021 for the Gateway Heights Project (hereinafter referred to as “the Project”). The Project is located in an area that does not require focused surveys for Western Riverside Multiple Species Habitat Conservation Plan (MSHCP) Criteria Area or Narrow Endemic plant species. Pursuant to Mitigation Measure BIO-2 in the Biological Resources Letter Report and MSHCP Consistency for Tentative Tract 37557, City of Moreno Valley, Riverside County, California (Dudek 2019), focused surveys are required for Plummer’s mariposa-lily (Calochortus plummerae) and Parry’s spineflower (Chorizanthe parryi var. parryi). .

PROJECT LOCATION AND DESCRIPTION
The Project site is located approximately one mile north of the interchange between State Route 60 (SR-60) and Interstate 2015 (I-215) in the City of Moreno Valley in Riverside County, California (Figure 1). It is approximately 110 feet north of Jennings Court and immediately east of Morton Road. It is bounded on the north and west property lines by the Riverside County jurisdictional border. It is comprised of Tax Assessor Parcel Number 256-150-001. The Project site is depicted on the U.S.

Geological Survey’s (USGS’) Riverside East 7.5-minute quadrangle at Township 2 South, Range 4 West, Section 34 (Figure 2).

The Project involves construction of a total of 108 detached condominium units on 17.30 acres of the

32.70-acre Project site. The dwelling units would be organized in thirteen “clusters” of between eight and ten units each. The Project also includes a 3.1-acre park, detention basins, internal roads, public utilities, and a 100-foot-wide fuel modification zone along the northern and eastern boundaries of the Project site.

The remaining 15.40 acres of the Project site would be rezoned to Open Space and dedicated as conservation land.

ENVIRONMENTAL SETTING
Topography consists of relatively steep slopes in the northeast half of the Project site with gentler slopes in the southwest corner. Elevations range from approximately 1,590 feet above mean sea level (msl) in the southwest corner to 2,080 feet above msl in the northeast corner.

Several erosional features with deeply incised banks occur throughout the Project site and are the result of sheet flow off Box Springs Mountain. Soils mapped on the Project site include F.1.c
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July 6, 2021

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Cieneba sandy loam, 15 to 50 percent slopes, eroded; Cieneba rocky sandy loam, 15 to 50 percent slopes, eroded; Fallbrook fine sandy loam, shallow, 8 to 15 percent slopes, eroded; Monserate sandy loam, 8 to 15 percent slopes, eroded; and rockland (USDA NRCS 2021).

Vegetation on the Project site include brittlebush scrub, California annual grassland, and eucalyptus woodland; disturbed and urban/developed areas also occur (Dudek 2019). The eucalyptus woodland contains trees that are greater than 15 feet tall. Land uses in the vicinity consist of residential development to the south and undeveloped open space to the north, east, and west, including the Box Springs Mountain Park and Reserve.

METHODS
According to the Riverside County Regional Conservation Authority MSHCP Information Mapping Application, focused plant surveys are not required for Criteria Area or Narrow Endemic plant species on the Project site. As part of their literature review for the biological resources letter report, Dudek performed a literature search to identify special status plant species reported from the vicinity of the Project site that may require avoidance, minimization, or mitigation measures if present on the Project site. Sources reviewed include the USGS Fontana, San Bernardino South, Redlands, Riverside West, Riverside East, Sunnymead, Lake Matthews, Steele Peak, and Perris 7.5-minute quadrangles in the California Native Plant Society’s Inventory of Rare and Endangered Plants, the California Department of Fish and Wildlife’s (CDFW’s) California Natural Diversity Database, and the CalFlora Database (Dudek 2019).

Based on the literature review, two species have been reported in the Project vicinity that have moderate or higher potential to occur: Parry’s spineflower and Plummer’s mariposa-lily. Suitable habitat for both species is present on the Project site.

Rainfall received in the winter and spring determines the germination of many annual and perennial herb species. The region received approximately 3.5 inches of precipitation between May 2020 and April 2021 (data taken from Perris – Menifee – South Coast Valleys Station 240) (CIMIS 2021). The average annual precipitation in the region is 12.44 inches (data taken from Elsinore, CA US Station) (NOAA 2021).

Plummer’s mariposa-lily was observed blooming in early and mid-June 2021 along the Santa Ana River in San Bernardino County and in eastern Los Angeles County, respectively. Since this species was observed blooming, it can be inferred that on-site conditions were suitable for growth of this species during the field surveys. A reference population of Parry’s spineflower in Fontana was checked on April 20; no individuals (vegetative or blooming) were observed. Because the species was not observed at the reference population, it cannot be determined whether on-site conditions were suitable for germination and growth at the time of the field surveys.

Botanical surveys conducted by Psomas in 2021 were floristic in nature and generally followed the protocols created by the CDFW (CDFW 2018). The botanical survey area included all suitable habitat within the proposed project footprint, including a 100-foot buffer (Figure 3). Surveys were conducted by Psomas Senior Biologist Allison Rudalevige on April 20 and June 7, 2021. The surveys covered approximately 20 acres and the total number of person-hours spent surveying was 2.5 hours.

A systematic survey was conducted by walking meandering transects through the survey area. All plant species observed were recorded in field notes. Plant species were identified in the field or collected for later identification. Plants were identified using taxonomic keys, descriptions, and illustrations in Jepson Flora Project (2020) and Baldwin et al. (2012) to the taxonomic level necessary to determine whether they are a special status species. Nomenclature of plant taxa conform to the Special Vascular Plants, Bryophytes, and Lichens List (CDFW 2021) for special status species and the Jepson eFlora (Jepson Flora F.1.c
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Project 2020) for all other taxa. A list of all plant species observed during special status plant surveys is included in Attachment A.

SURVEY RESULTS
Table 1 identifies the special status plants reported from the literature review with moderate or high potential to occur, along with their status, their potential to occur on the Project site, and the survey results.

One special status plant species, paniculate tarplant (Deinandra paniculata), a species with a CRPR of

4.2, was observed on the Project site.

TABLE 1

SPECIAL STATUS PLANT SPECIES REPORTED

FROM THE PROJECT SITE VICINITY
Species
Status
Species
Background*
Nearest
Reported
Location
Potential to
Occur/Results of
USFWS CDFW CRPR Focused Surveys
Calochortus
plummerae
Plummer’s
mariposa-lily
— — 4.2
Perennial bulbiferous
herb found in granitic
or rocky soil of
chaparral,
cismontane
woodland, coastal
scrub, lower
montane coniferous
forest, and valley
and foothill grassland
at elevations
between 330 and
5,580 feet above
msl. Blooming
Period: May – July.

Reported
approximately
1 mile north of
the Project site
(CCH 2021).

Not expected to
occur. Suitable
habitat is present but
species not observed
during focused
surveys occurring at
a time when
reference
populations were
blooming.

Chorizanthe parryi
var. parryi
Parry’s
spineflower
— — 1B.1
Annual herb found in
sandy or rocky
openings of
chaparral,
cismontane
woodland, coastal
sage scrub, and
valley and foothill
grasslands at
elevations between
900 and 4,005 feet
above msl; Blooming
Period: April – June.

Reported
approximately
1 mile north of
the Project site
(CCH 2021).

Limited potential to
occur. Suitable
habitat is present but
species not observed
during focused
surveys. (Note: the
species was not
observed at a
reference population
that was checked
during the typical
blooming period for
the species).

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TABLE 1

SPECIAL STATUS PLANT SPECIES REPORTED

FROM THE PROJECT SITE VICINITY
Species
Status
Species
Background*
Nearest
Reported
Location
Potential to
Occur/Results of
USFWS CDFW CRPR Focused Surveys
Deinandra
paniculata
paniculate
tarplant
— — 4.2
Annual herb found in
coastal scrub, valley
and foothill
grassland, and
vernal pools, usually
in vernally mesic or
sandy soil at
elevations between
80 and 3,085 feet
above msl. Blooming
Period: April –
November
(occasionally in
March).

Reported less
than ½ mile
south of the
Project site
(CCH 2021).

Observed during
focused surveys.

Approximately 350
individuals observed
in ruderal openings
along the disturbed
area in the
southwestern portion
of the survey area.

Approximately 20
percent vegetative,
50 percent blooming,
and 30 percent
fruiting. Associated
with California
encelia (Encelia
californica), shortpod
mustard (Hirschfeldia
incana), and red
brome (Bromus
rubens).

USFWS: U.S. Fish and Wildlife Service; CDFW: California Department of Fish and Wildlife; CRPR: California Rare Plant Rank; msl:
mean sea level.
* Source: CNPS 2021
LEGEND:

CRPR
1B Plants Rare, Threatened, or Endangered in California and elsewhere 4 Plants of limited distribution – A Watch List
CRPR Threat Code Extensions
.1 Seriously threatened in California (over 80% of occurrences threatened; high degree and immediacy of threat) .2 Fairly threatened in California (20–80% of occurrences threatened; moderate degree and immediacy of threat)

CONCLUSIONS
One special status plant species, paniculate tarplant, was observed on the Project site. This species is not covered by the MSHCP. As a species with a CRPR of 4.2, it is considered to be of limited distribution and on a “watch list”. Multiple occurrences of this species are present within the Project region (CCH 2021). Species with a CRPR of 4.2 are not generally considered constraints on development and no mitigation would be required for impacts on this species.

Plummer’s mariposa-lily and Parry’s spineflower were not observed on the Project site during focused surveys. There is always a small chance for false negative survey results as species may not be detectable at the time of the surveys. Reference populations and regional rainfall amounts are monitored to ensure the scientific adequacy of focused surveys. Given the drought conditions during the 2020/2021 wet season, observations made at reference populations are important for determining whether survey results are valid. Plummer’s mariposa-lily were observed blooming at reference populations, so conditions on the Project site during the surveys were likely suitable to detect this species, if present. The negative focused F.1.c
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survey results indicate that this species is absent from the Project site. Parry’s spineflower, however, was not detected at a reference population. Therefore, the negative survey results do not reliably confirm the species’ absence from the Project site.

Per the guidelines of the MSHCP, both Plummer’s mariposa-lily and Parry’s spineflower were originally designated by the Regional Conservation Authority (RCA) as covered species not adequately conserved.

They are considered adequately conserved when certain species-specific conservation objectives have been met. For Plummer’s mariposa-lily, the requirement is six localities with at least 500 individuals each preserved within the MSHCP Conservation Area. For Parry’s spineflower, the requirement is 10 localities with at least 1,000 individuals each preserved within the MSHCP Conservation Area. The MSHCP conservation objectives for Plummer’s mariposa-lily and Parry’s spineflower were met in 2012 and 2013, per reporting prepared as part of the MSHCP monitoring program (RCA 2013, 2015). Because the RCA has demonstrated that the conservation objectives for both species continue to be met each year, they are considered adequately conserved and take is covered by participation in the MSHCP. Therefore, no additional measures are required.

If you have any comments or questions, please contact Steve Norton at [email protected] or 714.481.8037.

Sincerely,
Steve Norton Allison D. Rudalevige
Project Manager Senior Biologist
Enclosures: Figure 1 – Project Location
Figure 2 – USGS 7.5-Minute Digital Quadrangle
Figure 3 – Survey Area
Attachment A – Plant Compendium
R:\Projects\ZHE\3ZHE010100\Technical Reports\Plants\Plant Report-070621.docx

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REFERENCES
Baldwin, B.G., D.J. Keil, R. Patterson, T.J. Rosatti, and D.H. Wilken (Eds.). 2012. The Jepson Manual:

Vascular Plants of California (Second ed.). Berkeley, CA: University of California Press.

California Department of Fish and Wildlife (CDFW). 2021 (April). Special Vascular Plants, Bryophytes, and Lichens List. Sacramento, CA: CDFW, Natural Heritage Division. https://www.dfg.ca.gov/wildlife/nongame/list.html.
———. 2018 (March 20). Protocols for Surveying and Evaluating Impacts to Special Status Native Plant Populations and Sensitive Natural Communities. Sacramento, CA: CDFW.

California Irrigation Management Information System (CIMIS). 2021. CIMIS Monthly Report for Perris – Menifee – South Coast Valleys, Station #240. Sacramento, CA: California Department of Water Resources, CIMIS. http://www.cimis.water.ca.gov.

California Native Plant Society (CNPS). 2019. Inventory of Rare and Endangered Plants. Species descriptions for plants listed in Table 1. Sacramento, CA: CNPS. http://www.cnps.org/inventory.

Consortium of California Herbaria (CCH). 2021. Consortium of California Herbaria. Data provided by the participants of the Consortium of California Herbaria for all plants listed in Table 1. Berkeley, CA: University of California. http://ucjeps.berkeley.edu/consortium/.

Dudek. 2019 (March). Biological Resources Letter Report and MSHCP Consistency for Tentative Tract 37557, City of Moreno Valley, Riverside County, California.

Jepson Flora Project. 2020 (December 21, Revision 8). Jepson eFlora (Taxonomy for common species in the Plant Compendium). Berkeley, CA: The Jepson Herbarium. http://ucjeps.berkeley.edu/eflora/.

National Oceanic and Atmospheric Administration (NOAA). 2021 (May 18, date accessed). Data Tools:
1981 – 2010 Normals (Elsinore CA US Station). Asheville, NC: NOAA, National Centers for Environmental Information. https://www.ncdc.noaa.gov/cdo-web/datatools/normals.

Western Riverside County Regional Conservation Authority (RCA). 2015 (May). Western Riverside County Multiple Species Habitat Conservation Plan Annual Report for the Period January 1, 2013 through December 31, 2013.
———. 2013 (June). Western Riverside County Multiple Species Habitat Conservation Plan Annual Report for the Period January 1, 2012 through December 31, 2012.

U.S. Department of Agriculture, Natural Resources Conservation Service (USDA NRCS). 2021(Accessed June 29). Custom Soil Resource Report for Western Riverside Area, California – Gateway Heights. Survey Area Data v.13, May 27, 2020. Lincoln, NE: USDA NRCS.

F.1.c
Packet Pg. 753 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Central Ave
Day St
Box Springs Blvd
Watkins Dr
Box Springs Rd Ironwood Ave
Belcanto
Dr
Mountain
View Rd
Peoria Ln
C o
C
u n try re s t D r
Morton Rd
Pettegrew
Rd
Alta
Brisa Way
Sunnybrook Dr
Sycamore Canyon Blvd
Bratta Rd
Quail Call Dr
Wild
Burro Trl
Jennings Ct
Escorial Ct
Big Springs Rd
Clark St
Gawn Trl
Box Springs Mountain Rd
Big
Timber Rd
Gernert Rd
Univ of
California
Riverside
Univ of
California
Riverside
Box Springs
Elementary
School
Hyatt
Elementary
School
Seneca
Elementary
School
Sheriffs
Academy
Sycamore
Canyon Park
Islander Park
Box Springs
Mountain
Reserve
Quail Run
Open Space
Mount
Vernon
Park
Hidden Springs
Community Park
Moreno
Va lle y Mall
at Townga te
Ca ny on
Sp ring s Plaz a
UV60
§¨¦215
D:\Projects\3ZHE\010100\MXD\ex_Vicinity_20210329.mxd
²
Lake
Mathews
Lake
Perris

N A T I O N A
§¨15
§¨215
ST60
Project Location
§¨215
§¨15
§¨10
ST91
ST30
San Bernardino
Riverside
San
Bernardino
Moreno Valley
Perris
Redlands Yucaipa
Rialto
Vicinity Map
Gateway Heights Project
Figure 1
(Rev: 03/30/2021 MMD) R:\Projects\ZHE\3ZHE010100\Graphics\ex_Vicinity.pdf 2,000 1,000 0 2,000
Feet
Project Boundary
F.1.c
Packet Pg. 754 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) D:\Projects\3ZHE\010100\MXD\Notification\ex_USGS_Topo_20210330.mxd ²
Topographic Map
Gateway Heights Project
Figure 2
(Rev: 07/06/2021 MMD) R:\Projects\ZHE\3ZHE010100\Graphics\Notification\ex_USGS_Topo.pdf 2,000 1,000 0 2,000
Feet
Project Boundary
Source: USGS 7.5 Minute Quadrangle
Riverside East
Township: 02S
Range: 04W
Section: 34
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Survey Area
Gateway Heights Project
Figure 3
(Rev: 07/06/2021 MDM) R:\Projects\ZHE\3ZHE010100\Graphics\ex_SurveyArea.pdf 300 150 0 300
Feet
Proposed Project Footprint
Survey Area
Aerial Source: Esri, Maxar 2018
Morton Rd
Jennings Ct
Hillmer Ct
Penunuri Pl
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ATTACHMENT A

PLANT COMPENDIUM
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Packet Pg. 757 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Gateway Heights Project
R:\Projects\ZHE\3ZHE010100\Technical Reports\Plants\Plant Report-070621.docx A-1 Plant Compendium

PLANT SPECIES OBSERVED DURING SPECIAL STATUS PLANT SURVEYS Species
Scientific Name Common Name

EUDICOTS
ADOXACEAE – MUSKROOT FAMILY
Sambucus nigra ssp. caerulea blue elderberry
ANACARDIACEAE – SUMAC FAMILY
Malosma laurina laurel sumac
Schinus molle* pepper tree
Schinus terebinthifolius* Brazilian pepper tree
ASTERACEAE – SUNFLOWER FAMILY
Ambrosia psilostachya western ragweed
Artemisia californica California sagebrush
Baccharis salicifolia ssp. salicifolia mule fat
Centaurea melitensis* tocalote
Corethrogyne filaginifolia filago-leaved sand-aster
Cotula australis* Australian cotula
Deinandra paniculata paniculate tarplant
Encelia farinosa brittlebush
Ericameria pinifolia pine-bush
Erigeron foliosus leafy fleabane
Helianthus annuus annual sunflower
BORAGINACEAE – BORAGE FAMILY
Amsinckia intermedia common fiddleneck
Amsinckia menziesii common fiddleneck
Pectocarya linearis ssp. ferocula narrow-toothed pectocarya Phacelia distans distant phacelia
BRASSICACEAE – MUSTARD FAMILY
Hirschfeldia incana* grayish shortpod mustard
Sisymbrium irio* London rocket
CACTACEAE – CACTUS FAMILY
Cylindropuntia californica var. parkeri cane cholla
Opuntia littoralis seaside prickly-pear
CHENOPODIACEAE – GOOSEFOOT FAMILY
Chenopodium murale* wall-growning pigweed
Salsola tragus* Russian thistle
CUCURBITACEAE – GOURD FAMILY
Marah macrocarpa chilicothe
EUPHORBIACEAE – SPURGE FAMILY
Croton setiger turkey-mullein
FABACEAE – LEGUME FAMILY
Acmispon glaber deerweed
Parkinsonia aculeata* Mexican palo verde
GERANIACEAE – GERANIUM FAMILY
Erodium cicutarium* redstem filaree
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Packet Pg. 758 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Gateway Heights Project
R:\Projects\ZHE\3ZHE010100\Technical Reports\Plants\Plant Report-070621.docx A-2 Plant Compendium

PLANT SPECIES OBSERVED DURING SPECIAL STATUS PLANT SURVEYS Species
Scientific Name Common Name
LAMIACEAE – MINT FAMILY
Marrubium vulgare* common horehound
Salvia mellifera black sage
MYRTACEAE – MYRTLE FAMILY
Eucalyptus camaldulensis* red gum
Eucalyptus globulus* blue gum
NYCTAGINACEAE – FOUR O'CLOCK FAMILY
Mirabilis laevis var. crassifolia wishbone bush
PLATANACEAE – SYCAMORE FAMILY
Platanus racemosa western sycamore
POLYGONACEAE – BUCKWHEAT FAMILY
Eriogonum fasciculatum California buckwheat
SALICACEAE – WILLOW FAMILY
Populus fremontii ssp. fremontii Fremont cottonwood
SOLANACEAE – NIGHTSHADE FAMILY
Datura wrightii Wright's jimsonweed
Nicotiana glauca* tree tobacco
Solanum xanti Xantus' nightshade

MONOCOTS
ARECACEAE – PALM FAMILY
Washingtonia robusta* Mexican fan palm
POACEAE – GRASS FAMILY
Arundo donax* giant reed
Avena barbata* slender wild oat
Avena fatua* wild oat
Bromus diandrus* ripgut grass
Bromus rubens* red brome
Hordeum murinum* wall barley
Pennisetum setaceum* crimson fountain grass
Schismus barbatus* barbed Mediterranean grass
THEMIDACEAE – BRODIAEA FAMILY
Dipterostemon capitatus blue dicks
* Non-native or invasive species
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Packet Pg. 759 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) 5 Hutton Centre Drive
Suite 300
Santa Ana, CA 92707
Tel 714.751.7373
www.Psomas.com
July 7, 2021
Jason Ackerman VIA EMAIL
Ackerman Law PC [email protected]
3200 E. Guasti Road, Suite 1000
Ontario, CA 91761
Subject: Results of a Burrowing Owl Survey for the Gateway Heights Project, City of Moreno Valley, California
Dear Mr. Ackerman:

This Letter Report presents the results of a focused burrowing owl survey conducted for the Gateway Heights Project (hereinafter referred to as “the Project site”), located at Tax Assessor Parcel Number (APN) 256-150-001 in the City of Moreno Valley, Riverside County, California. The burrowing owl survey was conducted in accordance with the Burrowing Owl Survey Instructions for the Western Riverside County Multiple Species Habitat Conservation Plan (MSHCP) Area (Riverside 2006).

PROJECT LOCATION AND DESCRIPTION
The Project site is generally located north of the State Route 60 (SR-60) and Interstate 215 (I-215) interchange. It is specifically located approximately 110-feet north of Jennings Court and immediately east of Morton Road in the western portion of the City of Moreno Valley (Figure 1). Although the Project is located entirely within the City of Moreno Valley, it is bounded on the northerly and westerly property lines by the Riverside County jurisdictional border. The Project site is located in Section 34 of Township 2 South, Range 4 West, Riverside East US Geologic Survey 7.5-minute quadrangle map (Figure 2). The approximate center of the Project site is at longitude 117°17ʹ39.77″W and latitude 33°57ʹ34.95″N.

The Project involves construction of a total of 108 detached condominium units on 17.30 acres of the

32.70-acre Project Site approximately. The dwelling units would be organized in thirteen “clusters” of between eight and ten units each. The condominium units would range from 1,400 to 1,602 square feet in interior space. The remaining 15.40 acres of the Project Site would be rezoned to Open Space (OS) and dedicated as conservation land.

ENVIRONMENTAL SETTING
The Project site is characterized as open, vacant lands situated in the southwestern foothills of the Box Springs Mountains. Elevations in the Project site range from approximately 1,590 feet above mean sea level (amsl) in the southwest corner to 2,080 feet amsl in the northeast corner.

The Project site is surrounded by undeveloped land to the north, east, and west with residential development to the south. The Box Springs Mountain Park and Reserve is located north of the Project site, which is owned by several entities including the County of Riverside, University of California, and Western Riverside County Regional Conservation Authority.

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July 7, 2021

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Several erosional features with deep incised banks occur throughout the Project site and are the result of sheet flow off Box Springs Mountain.

Sometime between 1942 and 1955, the northeastern portion of the Project site was developed with residences, which were accessible from a dirt access road. Although the residences were previously removed, the dirt road remains along with eucalyptus trees, which are assumed to have been planted around the previous residences. Also, several dirt off-highway vehicle trails traverse the Project site.

REGULATORY BACKGROUND
As a project within the jurisdiction of the MSHCP, surveys for burrowing owl are required as part of the environmental review process. The MSHCP Additional Surveys Needs and Procedures identify a specific burrowing owl survey area within the MSHCP Plan Area. The MSHCP also identifies species-specific objectives for burrowing owl, namely Species-Specific Objectives 5 and 6, both of which require burrowing owl surveys if suitable habitat occurs on a proposed project site (Dudek 2003).

SURVEY METHODS
A survey protocol to address species-specific objectives for burrowing owl was developed for the MSHCP (Riverside 2006). This protocol identifies that surveys are to be conducted during the breeding season (March 1 through August 31) to describe if, when, and how the site is used by burrowing owls.

Surveys shall be conducted in two parts: Part A includes focused burrow surveys and Part B includes focused burrowing owl surveys. Surveys should be conducted during weather that is conducive to observing owls outside their burrows and detecting burrowing owl sign. Surveys will not be accepted if they are conducted during rain, high winds (> 20 mph), dense fog, or temperatures over 90°F. Part B surveys should be conducted in the morning one hour before sunrise to two hours after sunrise or in the early evening two hours before sunset to one hour after sunset. Focused burrowing owl surveys will consist of site visits on four separate days. The first one may be conducted concurrent with the focused burrow survey. Pre-construction surveys shall be conducted within 30 days prior to ground disturbance to avoid direct take of burrowing owls, if any are present on the project site (MSHCP Species-Specific Objective 6).

Burrow Survey
Psomas Biologist Cristhian Mace conducted the focused burrow survey on March 13, 2021, and updated the results of that survey during the May 3, June 3, and 18, 2021. The burrow survey and subsequent updates were conducted concurrently with the focused burrowing owl surveys. The survey area included suitable habitat on the Project site and within a 500-foot buffer area (Figure 3). The Biologist walked the survey area in transects spaced approximately 100 feet (30 meters) apart to achieve 100 percent visual coverage. The weather conditions during the survey were suitable for bird activity and consisted of mild temperatures (i.e., 60 to 80 degrees Fahrenheit) with wind speeds no more than 11 miles per hour, and an absence of dense fog. Furthermore, the first survey was not conducted within five days following a rain event. The focused burrow survey conditions are summarized in Table 1.

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Packet Pg. 761 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Mr. Ackerman
July 7, 2021

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TABLE 1.

FOCUSED BURROW SURVEY CONDITIONS
Date Survey Type
Time
Start/End
Temperature
(°F)
Start/End
Wind Speed
(mph)
Start/End
Cloud Cover
(%) Start/End
3/31/2021 Burrow Survey 1 7:45 AM – 12:15 PM 56/77 1–4/4–7 0/0 5/13/2021 Burrow Survey
Update 1 7:35 AM – 11:45 AM 56/73 6–7/9-11 0/0
6/3/2021 Burrow Survey
Update 2 7:40 AM – 12:00 PM 55/80 0–1/2–5 0/0
6/18/2021 Burrow Survey
Update 3 7:50 AM – 11:35 AM 57/78 0–1/2–5 0/0
Any natural or man-made cavities large enough to allow a burrowing owl to enter were inspected for evidence of occupation and mapped. Evidence of occupation may include prey remains, cast pellets, whitewash, feathers, and observations of owls adjacent to burrows. Binoculars were used to inspect burrows, crevices, and potential perches such as rocks, fence posts, and other elevated structures for the presence of this species. Any active, potentially active, or inactive burrows in the survey area were recorded in the field using handheld Global Positioning System (GPS) units. An active burrow is defined as a burrow with confirmed sign of active use (i.e., burrowing owl observed or fresh scat). A potentially active burrow is defined as a burrow that is structurally suitable for burrowing owl (with or without sign).

An inactive burrow is one that appears old, is collapsing, and is structurally blocked so that an animal would need to physically modify the entrance to enter it. No burrows were altered during the burrow survey effort. The dimensions of each burrow were recorded and are included in Attachment B (Table B-1). All wildlife observed were recorded in field notes and are also listed in Attachment B (Table B-2).

Burrows that were marked as potentially suitable during the survey underwent a follow-up burrowing owl survey to determine if the burrows were occupied (see methods below).

Burrowing Owl Survey
The burrowing owl survey was conducted following Part B of the survey methods in the Western Riverside County MSHCP (Riverside 2006). The MSHCP recommends crepuscular surveys (i.e., occurring near dawn and dusk) to increase the potential of detecting an active burrowing owl. The purpose of this survey was to identify any active burrowing owl burrows within study area per the requirements in the MSHCP.

Psomas Biologist Cristhian Mace conducted the burrowing owl surveys on March 31, May 13, June 3, and 18, 2021. The survey area included a 500-foot buffer area around the proposed development footprint (Figure 3). The Biologist walked the survey area in transects spaced approximately 100 feet (30 meters) apart to achieve 100 percent visual coverage. The survey area was scanned for burrowing owl or sign of their presence (e.g., pellets, scat, prey remains, whitewash, decoration) using binoculars at the start of each transect and every 328 feet (100 meters). The surveys were conducted between one hour before sunrise and up to two hours afterward. The weather conditions during the survey were suitable for bird activity and consisted of mild temperatures (i.e., 60 to 80 degrees Fahrenheit) with wind speeds no more than 11 miles per hour.

As stated above, any natural or man-made cavities large enough to allow a burrowing owl to enter were inspected for evidence of occupation and mapped. Evidence of occupation may include prey remains, cast F.1.c
Packet Pg. 762 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Mr. Ackerman
July 7, 2021

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pellets, whitewash, feathers, and observations of owls adjacent to burrows. Binoculars were used to inspect burrows, crevices, and potential perches such as rocks, fence posts, and other elevated structures for the presence of this species. Any active burrows with either the presence of burrowing owls or sign in the survey area were recorded in the field using handheld GPS units. No burrows were altered during the burrowing owl survey effort. All wildlife observed were recorded in field notes and are also listed in Attachment B (Table B-2). Survey conditions during the burrowing owl surveys are shown in Table 2.

TABLE 2

FOCUSED BURROWING OWL SURVEY CONDITIONS
Date Survey Type
Time
Start/End
Temperature
(°F)
Start/End
Wind Speed
(mph)
Start/End
Cloud
Cover (%)
Start/End
3/31/2021 Crepuscular BUOW
(Morning) Survey 1 5:15 AM – 7:45 AM 55/61 0–2/1–4 0/0
5/13/2021 Crepuscular BUOW
(Morning) Survey 2 5:15 AM – 7:35 AM 54/62 4–5/6–7 0/0
6/3/2021 Crepuscular BUOW
(Morning) Survey 3 5:15 AM – 7:40 AM 53/63 0–1/0–1 0/0
6/18/2021 Crepuscular BUOW
(Morning) Survey 4 5:15 AM – 7:50 AM 56/62 0–1/0–1 0/0

RESULTS
No burrowing owl or owl sign was observed in the survey area.

Three potentially suitable burrows were recorded during the surveys, however, all were determined to be unoccupied (Figure 3). Representative photographs of the burrows are included in Attachment A.

California gnatcatcher (Polioptila californica), federally-listed Threatened species and a California Species of Special Concern, was incidentally observed during the survey. California Natural Diversity Database (CNDDB) forms for this species are included in Attachment C.

Psomas appreciates the opportunity to assist on this project. If you have any comments or questions, please contact Steve Norton at [email protected] or (714) 481-8037.

Sincerely,
Steve Norton
Senior Biologist/Project Manager, Resource Management
Enclosures: Figures 1–3
Attachment A – Site Photographs
Attachment B – Burrows and Wildlife Observed
Attachment C – CNDDB Form
R:\Projects\ZHE\3ZHE010100\Technical Reports\BUOW\BUOW Report-070721.docx F.1.c
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REFERENCES
Dudek and Associates, Inc. (Dudek). 2003. Western Riverside County Multiple Species Habitat Conservation Plan (Prepared for the Riverside County Integrated Project). Encinitas, CA: Dudek. http://www.wrc-rca.org/about-rca/multiple-species-habitat-conservation-plan/.

Riverside, County of. 2006 (March 29). Burrowing Owl Survey Instructions for the Western Riverside Multiple Species Habitat Conservation Plan Area. Riverside, CA: the County.

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Packet Pg. 764 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Central Ave
Day St
Box Springs Blvd
Watkins Dr
Box Springs Rd Ironwood Ave
Belcanto
Dr
Mountain
View Rd
Peoria Ln
C o
C
u n try re s t D r
Morton Rd
Pettegrew
Rd
Alta
Brisa Way
Sunnybrook Dr
Sycamore Canyon Blvd
Bratta Rd
Quail Call Dr
Wild
Burro Trl
Jennings Ct
Escorial Ct
Big Springs Rd
Clark St
Gawn Trl
Box Springs Mountain Rd
Big
Timber Rd
Gernert Rd
Univ of
California
Riverside
Univ of
California
Riverside
Box Springs
Elementary
School
Hyatt
Elementary
School
Seneca
Elementary
School
Sheriffs
Academy
Sycamore
Canyon Park
Islander Park
Box Springs
Mountain
Reserve
Quail Run
Open Space
Mount
Vernon
Park
Hidden Springs
Community Park
Moreno
Va lle y Mall
at Townga te
Ca ny on
Sp ring s Plaz a
UV60
§¨¦215
D:\Projects\3ZHE\010100\MXD\BUOW\ex_Vicinity_20210329.mxd ²
Lake
Mathews
Lake
Perris

N A T I O N A
§¨15
§¨215
ST60
Project Location
§¨215
§¨15
§¨10
ST91
ST30
San Bernardino
Riverside
San
Bernardino
Moreno Valley
Perris
Redlands Yucaipa
Rialto
Vicinity Map
Gateway Heights Project
Figure 1
(Rev: 07/07/2021 MMD) R:\Projects\ZHE\3ZHE010100\Graphics\BUOW\ex_Vicinity.pdf 2,000 1,000 0 2,000
Feet
Project Boundary
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Packet Pg. 765 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) D:\Projects\3ZHE\010100\MXD\BUOW\ex_USGS_Topo_20210330.mxd ²
Topographic Map
Gateway Heights Project
Figure 2
(Rev: 07/07/2021 MMD) R:\Projects\ZHE\3ZHE010100\Graphics\BUOW\ex_USGS_Topo.pdf 2,000 1,0000 2,000
Feet
Project Boundary
Source: USGS 7.5 Minute Quadrangle
Riverside East
Township: 02S
Range: 04W
Section: 34
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Packet Pg. 766 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) 1 2
3 D:\Projects\3ZHE\010100\MXD\BUOW\ex_SurveyArea_20210706.mxd ²
Survey Area
Gateway Heights Project
Figure 3
(Rev: 07/07/2021 MDM) R:\Projects\ZHE\3ZHE010100\Graphics\BUOW\ex_SurveyArea.pdf 500 250 0 500
Feet
Project Boundary
Survey Area
Unoccupied Potential Burrow
Aerial Source: Esri, Maxar 2018
Morton Rd
Jennings Ct
Hillmer Ct
Penunuri Pl
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Packet Pg. 767 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

ATTACHMENT A

SITE PHOTOGRAPHS
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Packet Pg. 768 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Site Photographs Attachment A-1
Gateway Heights Project
Up-close photo of suitable entrance to unoccupied Burrow 1. (07/06/2021 MDM) R:\Projects\ZHE\3ZHE010100\Graphics\BUOW Report\Att_sitephotos.pdf D:\Projects\3ZHE\010100\GRAPHICS\BUOW\Att1_sitephotos_20210706.ai Photo of unoccupied potentially suitable burrow complex (Burrow 1) located onsite.

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Packet Pg. 769 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Site Photographs Attachment A-2
Gateway Heights Project
(07/06/2021 MDM) R:\Projects\ZHE\3ZHE010100\Graphics\BUOW Report\Att_sitephotos.pdf D:\Projects\3ZHE\010100\GRAPHICS\BUOW\Att2_sitephotos_20210706.ai Photo of the unoccupied potentially suitable Burrow 3 located in the survey buffer (offsite). Only one entrance observed.

Photo of unoccupied potentially suitable burrow complex (Burrow 2) located onsite. Multiple entrances into the rocky outcrop.

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Packet Pg. 770 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

ATTACHMENT B

BURROWS AND WILDLIFE OBSERVED
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Packet Pg. 771 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Gateway Highlands Project
R:\Projects\ZHE\3ZHE010100\Technical Reports\BUOW\BUOW Report-070721.docx B-1 Burrows and Wildlife Observed TABLE B-1

BURROW DETAILS
Burrow
ID
No. of
Entrances Easting Northing
Burrow Dimensions
(Width [in] x Height
[in] x Length [in])
General
Location Notes
1 +10 33.957311 -117.296287 6 x 6 x 12 to 8 x 10 x 14 Onsite Dirt mound with many newly dug California ground squirrel burrows provides potential burrows. However, the ground squirrel burrow complex is actively occupied by the squirrels. Burrowing owls would not be able to occupy unless squirrels vacated the complex. 2 4 33.957386 -117.295510 4 x 6 x 10 to 10 x 10 x 18 Onsite Rocky outcrop with newly dug California ground squirrel burrows provides potential burrows. However, the ground squirrel burrow complex is actively occupied by the squirrels. Burrowing owls would not be able to occupy unless squirrels vacated the complex. 3 1 33.957008 -117.295866 10 x 8 x 18 Offsite within buffer Water draining from backyard of private property has created a channel under a cinderblock wall creating a potential burrow.

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Packet Pg. 772
Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Gateway Highlands Project
R:\Projects\ZHE\3ZHE010100\Technical Reports\BUOW\BUOW Report-070721.docx B-2 Burrows and Wildlife Observed TABLE B-2

WILDLIFE OBSERVED DURING SURVEYS
Species
Scientific Name Common Name

LIZARDS

PHRYNOSOMATIDAE - SPINY LIZARD FAMILY
Sceloporus occidentalis western fence lizard
Uta stansburiana common side-blotched lizard

TEIIDAE - WHIPTAIL LIZARD FAMILY
Aspidoscelis tigris western whiptail
BIRDS
ODONTOPHORIDAE – NEW WORLD QUAILS
Callipepla californica California Quail

COLUMBIDAE - PIGEON AND DOVE FAMILY
Columba livia* rock pigeon*
Streptopelia decaocto* Eurasian collared-dove*
Zenaida macroura mourning dove

TROCHILIDAE - HUMMINGBIRD FAMILY
Calypte anna Anna's hummingbird
Selasphorus sasin Allen's hummingbird

CHARADRIIDAE - PLOVER FAMILY
Charadrius vociferus killdeer

CATHARTIDAE - NEW WORLD VULTURE FAMILY
Cathartes aura turkey vulture

ACCIPITRIDAE - HAWK FAMILY
Circus cyaneus northern harrier
Buteo jamaicensis red-tailed hawk

FALCONIDAE - FALCON FAMILY
Falco sparverius American kestrel

TYRANNIDAE - TYRANT FLYCATCHER FAMILY
Sayornis nigricans black phoebe
Sayornis saya Say's phoebe
Myiarchus cinerascens ash-throated flycatcher
Tyrannus vociferans Cassin's kingbird

CORVIDAE - JAY AND CROW FAMILY
Corvus brachyrhynchos American crow
Corvus corax common raven

AEGITHALIDAE - BUSHTIT FAMILY
Psaltriparus minimus bushtit

TROGLODYTIDAE - WREN FAMILY
Salpinctes obsoletus rock wren
Catherpes mexicanus canyon wren
Troglodytes aedon house wren

POLIOPTILIDAE - GNATCATCHER FAMILY
Polioptila californica California gnatcatcher

SYLVIIDAE - SILVIID WARBLERS FAMILY
Chamaea fasciata wrentit
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Packet Pg. 773 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Gateway Highlands Project
R:\Projects\ZHE\3ZHE010100\Technical Reports\BUOW\BUOW Report-070721.docx B-3 Burrows and Wildlife Observed TABLE B-2

WILDLIFE OBSERVED DURING SURVEYS
Species
Scientific Name Common Name

TURDIDAE - THRUSH FAMILY
Sialia mexicana western bluebird

MIMIDAE - MOCKINGBIRD AND THRASHER FAMILY
Toxostoma redivivum California thrasher
Mimus polyglottos northern mockingbird

STURNIDAE - STARLING FAMILY
Sturnus vulgaris* European starling*

PASSERIDAE - OLD WORLD SPARROW FAMILY
Passer domesticus* house sparrow*

FRINGILLIDAE - FINCH FAMILY
Haemorhous mexicanus house finch
Spinus psaltria lesser goldfinch

PASSERELLIDAE - NEW WORLD SPARROW FAMILY
Aimophila ruficeps rufous-crowned sparrow
Melozone crissalis California towhee
Artemisiospiza belli Bell’s sparrow
Melospiza melodia song sparrow
Zonotrichia leucophrys white-crowned sparrow

ICTERIDAE - BLACKBIRDS AND ORIOLES
Icterus bullockii Bullock’s oriole
PARULIDAE – WARBLER FAMILY
Setophaga townsendi Townsend’s warbler

MAMMALS

SCIURIDAE - SQUIRREL FAMILY
Otospermophilus beecheyi California ground squirrel

LEPORIDAE - HARE AND RABBIT FAMILY
Sylvilagus audubonii desert cottontail

CANIDAE - CANID FAMILY
Canis latrans Coyote (scat)
* non-native species
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Packet Pg. 774 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

ATTACHMENT C

CALIFORNIA NATURAL DIVERSITY DATABASE FORM
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Packet Pg. 775 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) California Natural Diversity Database
Department of Fish and Wildlife
1416 9th Street, Suite 1266
Sacramento, CA 95814
Fax: 916.324.0475
CNDDB Online Field Survey Form Report
[email protected]
www.dfg.ca.gov/biogeodata/cnddb/
Source code_____________________
Quad code______________________
Occ. no. ________________________
EO index no._____________________
Map index no.____________________
This data has been reported to the CNDDB, but may not have been evaluated by the CNDDB staff MAC21F0002
3311783
Scientific name: Polioptila californica californica
Common name: coastal California gnatcatcher
Date of field work (mm-dd-yyyy): 06-18-2021
Comment about field work date(s): Field work was conducted on four dates: 03/31/21, 05/13/21, 06/3/21, and 06/18/21

DETERMINATION
Keyed in:

Compared w/ specimen at:

Compared w/ image in:

By another person: Steve Norton
Other:

Identification explanation: The individual was identified as a male California gnatcatcher due to the presence of a black cap and black tail that was narrowly edged white on the body. The male was singing the typical "mew" call associated with the species.

Identification confidence: Very confident
Species found: Yes If not found, why not?
Total number of individuals: 1
Collection? Collection number:

Museum/Herbarium:

ANIMAL INFORMATION
How was the detection made? Heard singing then seen
Number detected in each age class:

Age class comment:
adults juveniles larvae egg mass unknown
1 Level of survey effort: The gnatcatcher was observed as the biologist was walking transects that were 100 feet apart through the project site as part of a protocol burrowing owl survey.

Submitted: 07/06/2021 MAC21F0002 Page 1 of 3

OBSERVER INFORMATION
Observer: Cristhian Mace
Affiliation: Psomas
Address: 400 E California Blvd 5, Pasadena, CA 91106
Email: [email protected]
Phone: (310) 848-7714
Other observers:

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Packet Pg. 776 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Bird site use:

Nesting Rookery Nesting colony Burrow site Lek
Non-breeding (over-wintering) Communal roost Other
Site use description: A non-breeding male was observed foraging and singing throughout the area.

What was the observed behavior? Foraging and singing
Describe any evidence of reproduction: No evidence of reproduction was observed. The male did not display any nesting behaviors and no female or other individuals were observed within the general vicinity.

SITE INFORMATION
Habitat description: Coastal sage scrub habitat dominated by Encelia sp. and Eriogonum fasciculatum, with Salvia mellifera and Sambucus nigra.

Slope: 15-20% Land owner/manager: Private
Site condition + population viability: Fair
Aspect: West
Immediate & surrounding land use: Open space and residential Visible disturbances: Dirt roads, trash on site, evidence of grading Threats: Off-highway vehicles were observed accessing the site. The area is scheduled for residential development.

General comments:

ID
County
Riverside
1 24K Quadrangle Elev. (ft) Latitude
NAD83
Longitude
NAD83
UTM E
NAD83
UTM
Zone
Riverside East 1664 33.96055 -117.29577 472673 3757822 11 Public Land Survey
S T02S R04W 34
Feature Comment
UTM N
NAD83

MAP INFORMATION
Submitted: 07/06/2021 MAC21F0002 Page 2 of 3
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Packet Pg. 777 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Attachment(s):

The mapped feature is accurate within: 5 m
Source of mapped feature: GSP
Mapping notes:

Location/directions comments:

Submitted: 07/06/2021 MAC21F0002 Page 3 of 3
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Packet Pg. 778 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) October 13, 2022 11675
Shizao Zheng
1378 West Zhorgshan Road
Ningbo City, Zhejiang Province
China
Subject: Determination of Biologically Equivalent or Superior Preservation Report for the Gateway Heights Project, Moreno Valley, California
Dear Shizao Zheng:

In compliance with Section 6.1.2, Protection of Species Associated with Riparian/Riverine Areas and Vernal Pools, of the Western Riverside County Multiple Species Habitat Conservation Plan (MSHCP), a determination of biologically equivalent or superior preservation analysis is required by projects that will impact on-site riparian/riverine resources, if avoidance of these resources is not feasible (County of Riverside 2003). This determination of biologically equivalent or superior preservation letter report serves to provide the City of Moreno Valley (City) the full scope of construction and operation activities for the Gateway Heights Project (project), as well as demonstrate that the project design and proposed mitigation measures address impacts in a manner that is equivalent or superior as compared to leaving the site undeveloped. A full review of the affected resources is summarized below and is provided in the jurisdictional delineation report (Dudek 2021a) and biological resources report (Dudek 2021b), both prepared by Dudek.
1 Introduction

1.1 Project Area
The 40.1-acre study area is comprised of Assessor’s Parcel Numbers 256-150-001 and 256-040-009, as well as rights-of-way, and is located north of Jennings Court and east of Morton Road in Riverside County (Figure 1, Project Location; figures can be found in Attachment A, Figures). The project site occurs within U.S. Geological Survey 7.5- minute Riverside East quadrangle map, Section 34 of Township 2 South, Range 4 West. Specifically, the approximate center of the property is located at longitude 117°17ʹ39.77″ W and latitude 33°57ʹ34.95″ N.

1.2 Project Description
The proposed project includes the residential development of 108 detached condominium units, parking, open space, utility lines, fuel modification zones, and storm drain lines. The project also includes an undercrossing beneath Morton Road. The collection system will begin on the east side of Morton Road and consist of a concrete lined drop in the channel bottom and concrete headwall structure to result in no increase to water surface elevation. As a result of negotiations with adjacent landowners, two alternatives for the outlet structure are proposed. In Alternative 1, the outlet structure will cross Morton Road directly across the street from the proposed F.1.c
Packet Pg. 779 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TO: SHIZAO ZHENG
SUBJECT: DETERMINATION OF BIOLOGICALLY EQUIVALENT OR SUPERIOR PRESERVATION REPORT FOR THE

GATEWAY HEIGHTS PROJECT, MORENO VALLEY, CALIFORNIA
11675 2 OCTOBER 2022
Project into an existing channel. (Figure 2A, Alternative 1 Site Plan) In Alternative 2, the outfall structure will travel south along Morton Road for approximately 170 feet before depositing into an existing channel on the west side of Morton Road south of its intersection with Jennings Court (Figure 2B, Alternative 2 Site Plan). The headwall and concrete spillway will extend for approximately 40 feet. To aid in reducing downstream erosion, a rip rap apron will extend for an additional 40 feet.

1.3 Existing Conditions

1.3.1 Site Description
The project site is characterized as open, vacant lands situated at the southwestern foothills of Box Springs Mountain. Based on aerial imagery (Google Earth 2021), the central and southern portions of the site have been frequently disced, as recently as August 2021. This is presumed to have been intended for weed abatement and fire prevention. Discing has been conducted historically as a part of routine property management and will be halted after project construction. Any additional fuel modification will only occur within identified fuel modification zones within the property boundary. Elevations range from approximately 1,600 to 2,200 feet above mean sea level. The project site is surrounded by undeveloped land to the north, east, and west, with residential developments to the south. Numerous erosional features with deep incised banks occur throughout the study area and are the result of sheet flow off Box Springs Mountain. Numerous dirt roads bisect the project site and contain deep, eroded segments. Morton Road bisects the southwestern portion of the study area. Representative photographs of the project site are included in Attachment B, Site Photographs, in the biological resources letter report (Dudek 2021a).

Based on a review of historical topographic maps (Historic Aerials 2019), residences were built along a dirt access road in the northeastern portion of the project site sometime between 1942 and 1955. It is unclear when the residences were removed; however, the dirt road remains, along with eucalyptus trees, assumed to have been planted around the residences.

1.3.2 Vegetation Communities and Land Covers
Dudek Biologists Anna Cassady and Britney Strittmater conducted a general biological survey of the project site including a 50-foot buffer, collectively referred to as the study area, on February 22, 2019, from 6:40 a.m. to 12:30 p.m. Dudek Biologist Tracy Park conducted a biological survey of the study area associated with Alternative 2 on September 21, 2022, from 1:30 p.m. to 3:25 p.m. Natural vegetation communities were mapped in the field using the Vegetation Alliances of Western Riverside County (Klein and Evens 2006). Land cover types were described in accordance with Draft Vegetation Communities of San Diego County (Oberbauer et al. 2008). Three vegetation communities and two land cover types were documented within the study area: brittlebush scrub, California annual grassland, eucalyptus woodland, disturbed habitat, and urban/developed. Figure 3, Vegetation, illustrates the distribution of vegetation communities and land covers, and Table 1 provides a summary of each vegetation community and land cover’s extent within the study area.

Table 1. Vegetation Communities and Land Covers within the Study Area Vegetation Community/Land Cover Acreage
Vegetation Communities
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Packet Pg. 780 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TO: SHIZAO ZHENG
SUBJECT: DETERMINATION OF BIOLOGICALLY EQUIVALENT OR SUPERIOR PRESERVATION REPORT FOR THE

GATEWAY HEIGHTS PROJECT, MORENO VALLEY, CALIFORNIA
11675 3 OCTOBER 2022
Table 1. Vegetation Communities and Land Covers within the Study Area Vegetation Community/Land Cover Acreage
Brittlebush Alliance 22.5
California Annual Grassland Alliance 11.0
Eucalyptus Alliance 1.6
Non-Natural Land Covers
Disturbed Habitat 3.7
Urban/Developed 1.3
Total* 40.1
* Acreage may not total due to rounding.

1.3.2.1 Brittlebush Alliance
The brittlebush (Encelia farinosa) vegetation alliance is an open-to-intermittent shrub layer where brittlebush dominates or co-dominates at a low-to-moderate cover. The shrub layer often occurs in two separate strata: low shrubs at 0–2 meters tall and tall shrubs at 1–5 meters tall. A variety of native or non-native species may make up the herb layer (Klein and Evens 2006).

Within the study area, brittlebush is located in the northern portion of the study area at the base of Box Springs Mountain. This area contains numerous rocky outcrops. This community also occurs within the foothills in the central portion of the study area at slightly lower covers. This species was dominant in the shrub layer and included a lower cover of shrubs including California sagebrush (Artemisia californica) and black sage (Salvia mellifera). The herbaceous layer included various non-native grasses and a mixture of annual herbs such as redstem stork's bill (Erodium cicutarium) and shortfruit stork's bill (Erodium brachycarpum).

1.3.2.2 California Annual Grassland Alliance
As defined by Klein and Evens (2006), California annual grassland alliance is usually dominated by an open-tocontinuous herbaceous layer of native or non-native species at 0–1 meters tall, where emergent shrubs occur infrequently at 0.5–5 meters tall. Herbaceous non-native grasses may include compact brome (Bromus madritensis), ripgut brome (B. diandrus), slender oat (Avena barbata), or common Mediterranean grass (Schismus barbatus), with other herbaceous species such as slender Russian thistle (Salsola tragus), prickly lettuce (Lactuca serriola), and redstem stork's bill.

California annual grassland occupies the central and southern portions of the study area. This vegetation community is comprised primarily of weedy species including, but not limited to, brome species (Bromus spp.), short-podded mustard (Hirschfeldia incana), Tournefort’s mustard (Brassica tournefortii), common Mediterranean grass, common fiddleneck (Amsinckia intermedia), distant phacelia (Phacelia distans), shining pepperweed (Lepidium nitidum), Indian hedgemustard (Sisymbrium orientale), miniature lupine (Lupinus bicolor), winecup clarkia (Clarkia purpurea), California poppy (Eschscholzia californica), redstem stork’s bill, and shortfruit stork’s bill.

Scattered emergent brittlebush is located along the northern portions of the community; however, due to the low cover in these areas, it did not warrant its own vegetation community.

F.1.c
Packet Pg. 781 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TO: SHIZAO ZHENG
SUBJECT: DETERMINATION OF BIOLOGICALLY EQUIVALENT OR SUPERIOR PRESERVATION REPORT FOR THE

GATEWAY HEIGHTS PROJECT, MORENO VALLEY, CALIFORNIA
11675 4 OCTOBER 2022

1.3.2.3 Eucalyptus Alliance
The eucalyptus alliance is dominated by eucalyptus (Eucalyptus spp.) in the tree canopy, forming an open-tointerment tree layer at 10–15 meters tall. Typically, more than one eucalyptus species comprises this alliance.

Other emergent trees may include coast live oak (Quercus agrifolia) or non-native trees and shrubs such as date palm (Phoenix dactylifera), peppertree (Schinus spp.), and tamarisk (Tamarix spp.) at lower covers.

Within the study area, this alliance occurs within the northeastern portion of the study area and is dominated by various eucalyptus species. Scattered giant reed (Arundo donax), poison oak (Toxicodendron diversilobum), and laurel sumac (Malosma laurina) occur within the understory at low covers. A couple scattered California sycamores (Platanus racemosa) and a single Fremont cottonwood (Populus fremontii) were present but did not create a continuous canopy or high enough cover to warrant their own community. This area occurs at a topographic change in the slope of the Box Springs Mountain that appears to allow the water table to be close enough to the surface to support this vegetation; however, there was no evidence of wetland hydrology and, as described, plant species consisted of scattered individuals that did not create a continuous canopy.

1.3.2.4 Urban/Developed
Although not recognized by the Vegetation Alliances of Western Riverside County, urban/developed is defined by Oberbauer et al. (2008) as areas that have been constructed on or disturbed so severely that native vegetation is no longer supported. Urban/developed lands includes areas with permanent or semi-permanent structures, pavement or hardscape, landscaped areas, and areas with a large amount of debris or other materials.

Urban/developed land takes the form of rural residential development that is located within the 50-foot buffer to the south and paved roads including Morton Road, Jennings Court, and Penunuri Place. A very small portion of Morton Road occurs within the project site.

1.3.2.5 Disturbed Habitat
The classification of disturbed habitat is due to the predominance of bare ground, non-native plant species, and other disturbance-tolerant plant species. Oberbauer et al. (2008) describes disturbed habitat as areas that have been physically disturbed by previous human activity and are no longer recognizable as a native or naturalized vegetation association, but that continue to retain a soil substrate. Typically, vegetation, if present, is nearly exclusively composed of non-native annual plant species.

Within the study area, disturbed land encompasses the dirt access roads occurring within the western portion of the project site and within the western and southwestern portions of the 50-foot buffer. While the disturbed land within the study area was composed primarily of bare ground, plant species observed within this land cover include redstem stork’s bill and common Mediterranean grass.

F.1.c
Packet Pg. 782 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TO: SHIZAO ZHENG
SUBJECT: DETERMINATION OF BIOLOGICALLY EQUIVALENT OR SUPERIOR PRESERVATION REPORT FOR THE

GATEWAY HEIGHTS PROJECT, MORENO VALLEY, CALIFORNIA
11675 5 OCTOBER 2022
2 Riparian/Riverine Impacts and Mitigation
(per MSHCP Section 6.1.2)

2.1 Methods
Literature Review
The following available resources were reviewed to assess the potential for MSHCP riparian/riverine resources:
aerial photographs (Google Earth 2019; Historic Aerials 2019); the U.S. Geological Survey 7.5-minute topographic quadrangle (USGS 2019); a Natural Resources Conservation Service soil map (USDA 2019b); U.S. Environmental Protection Agency Watershed Assessment, Tracking & Environmental Results System (EPA 2019), which includes the National Hydrography Dataset; and the National Wetland Inventory (USFWS 2019).

Field Delineation
On February 22, 2019, Dudek Biologists Anna Cassady and Britney Strittmater conducted a reconnaissance-level biological field survey and a delineation of jurisdictional waters including a 50-foot buffer of the project site. Dudek Biologist Tracy Park conducted a delineation of jurisdictional waters of the study area associated with Alternative 2 on September 21, 2022, Each survey was conducted on foot using visual and aural cues to document species incidence and site conditions.

The MSHCP defines riparian/riverine areas as “lands which contain habitat dominated by trees, shrubs, persistent emergent, or emergent mosses and lichens, which occur close to or which depend upon soil moisture from a nearby fresh water source; or areas with fresh water flow during all or a portion of the year.” The MSHCP further clarifies those areas “demonstrating characteristics as described above which are artificially created are not included in these definitions” (County of Riverside 2003).

Given this definition, the maximum extent of streambed, as defined by the California Department of Fish and Wildlife, was used to aid in the delineation of MSHCP riparian/riverine resources. During the delineation of jurisdictional waters, Dudek delineated streambeds from the top of bank and/or the extent of the associated riparian vegetation.

2.2 Results/Impacts

2.2.1 Results
The study area contains two ephemeral drainages (Drainage 1 and Drainage 2) and two associated tributaries (Tributary 1 and Tributary 2) (Figure 4, MSHCP Riparian/Riverine). These features originate off site within the hills of Box Springs to the northeast and flow southwest through the project site. These features contained an inconsistent bed and bank, at times traversing the site via sheet flow. However, all features appeared to convey water towards Box Springs Canyon Wash, which has surface connection ultimately flowing to the Santa Ana River. Because these features convey water to downstream resources, they are considered riverine resources as defined by the MSHCP. There are approximately 0.29 acres of MSHCP riverine resources within the study area, as shown in Table 2.

F.1.c
Packet Pg. 783 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TO: SHIZAO ZHENG
SUBJECT: DETERMINATION OF BIOLOGICALLY EQUIVALENT OR SUPERIOR PRESERVATION REPORT FOR THE

GATEWAY HEIGHTS PROJECT, MORENO VALLEY, CALIFORNIA
11675 6 OCTOBER 2022
The study area contains two additional upland swales and five erosional features. These features originate from natural topography of Box Springs Mountain or as a result of dirt roads and trails that intersect the project site.

Runoff conveyed by these features ultimately sheet flows and dissipates. These features do not rely on a fresh water source and do not convey flows to downstream riverine resources; therefore, these are not considered riverine resources as defined by the MSHCP.

The project site supports a few scattered individuals of California sycamore, Fremont cottonwood, and mulefat (Baccharis salicifolia) as observed during the February 2019 field visit. This riparian vegetation is small in its extent, lacks understory or closed-canopy features, lacks continuity with higher quality habitat, and is not contiguous; therefore, these scattered individuals are not considered a riparian resource as defined by the MSHCP.

Table 2. MSHCP Riverine Resources within the Project Site Feature
Vegetation Community
and/or Land Cover
MSHCP Riverine
Resources (Acres/Linear
Feet) Total Acreage/ Linear Feet*
Drainage 1 Brittlebush (Encelia
farinosa) Alliance

0.01/210 0.01/210
California Annual
Grassland Alliance

0.12/1,316 0.12/1,316
Eucalyptus (Eucalyptus
spp.) Alliance

0.01/188 0.01/188
Drainage 1 MSHCP Riverine Total 0.15/1,714
Tributary 1 Brittlebush Alliance 0.08/1,054 0.08/1,054
California Annual
Grassland Alliance

0.02/415 0.02/415
Eucalyptus Alliance 0.01/250 0.01/250
Tributary 1 MSHCP Riverine Total 0.11/1,720
Drainage 2 Brittlebush Alliance 0.03/406 0.03/406
Disturbed Habitat <0.01/17 <0.01/17
Drainage 2 MSHCP Riverine Total 0.03/423
Tributary 2 Brittlebush Alliance 0.01/112 0.01/112
Tributary 2 MSHCP Riverine Total 0.01/112
Grand Total* 0.29/4,014
Notes: MSHCP = Multiple Species Habitat Conservation Plan * Acreage may not total due to rounding.

2.2.2 Impacts
The project would result in direct impacts to riverine resources as defined by the MSHCP, as summarized in Table 3 and as depicted in Figure 5, Impacts. The project would avoid Drainage 2 and Tributary 2, as the edge of the development footprint is located approximately 20 feet away from the drainages at its nearest point and over 100 feet away at its furthest point. A deed restriction will be placed over the avoided features prior to issuance of a grading permit. The project component that is adjacent to the drainage is cut and fill slopes that are adjacent to the buildings and associated driveways. The distance and the nature of the project components near the drainages are both F.1.c
Packet Pg. 784 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TO: SHIZAO ZHENG
SUBJECT: DETERMINATION OF BIOLOGICALLY EQUIVALENT OR SUPERIOR PRESERVATION REPORT FOR THE

GATEWAY HEIGHTS PROJECT, MORENO VALLEY, CALIFORNIA
11675 7 OCTOBER 2022
expected to reduce indirect effects to these features. Nevertheless, further information regarding how the project intends to avoid indirect impacts to these features is provided below in Section 2.3.

The project also includes a 100-foot fuel modification zone that will protect most of the development units. In areas where the fuel modification zone encroaches on MSHCP riverine features, the fuel modification zone would be modified to avoid direct impacts to these resources. The avoided Drainage 2 and Tributary 2 in the upper portion of the southeastern property line are comprised of large boulders and limited vegetation, thereby acting as a protective barrier without added maintenance needs (Dudek 2021c). The deed restriction will identify buffer areas for avoided riverine features where native vegetation removal is precluded and weed abatement and fuel modification (if needed) will be conducted using hand tools. This buffer will be up to 50 feet, as depicted in Figure 6, Avoided Riverine Buffers. In areas where the riverine features are adjacent to project features, such as is the case with Drainage 1, a smaller buffer (minimum 25 feet) will be used due to the construction of Street A, which will be located between 8 and 75 feet from Drainage 11. Despite the use of a smaller buffer, indirect impacts to Drainage 1 are not expected because Street A will act as a buffer for Drainage 1, as Street A and its associated landscaping will separate Drainage 1 from the residential community. In addition, associated runoff from Street A will be directed to a water quality basin that will filter the water before it leaves the site. Fuel modification activities will not occur between Street A and Drainage 1; all fuel modification activities associated nearby Drainage 1 are only proposed at the upstream reach, as is depicted in Figure 5, Impacts. As stated previously, fuel modification will avoid all riverine features and no native vegetation removal will occur adjacent to Drainage 1. Further information regarding how the project intends to avoid indirect impacts to these features is provided below in Section 2.3.

Impacts to Drainage 1 and Tributary 1 will occur from project development (Figure 5, Impacts). The project proposes to underground flows from Tributary 1 within a storm drain system that will intersect the project site before daylighting through a proposed outlet into Drainage 1. In existing condition, the terminus of Drainage 1 sheet flows south on Morton Road before flowing into Box Springs Canyon Wash. The proposed project intends to build a culvert that will contain the flows and prevent additional erosion to Morton Road. The terminus of Drainage 1 within the project site will be converted to a riprap-reinforced culvert that will convey flows beneath Morton Road and downstream to Box Springs Canyon Wash.

Table 3. Permanent Impacts to MSHCP Riverine Resources within the Project Site Feature
Vegetation Community
and/or Land Cover
Alternative 1 MSHCP
Riverine Resources
(Acres/Linear Feet) *
Alternative 2 MSHCP
Riverine Resources
(Acres/Linear Feet) *
Drainage 1 Brittlebush (Encelia
farinosa) Alliance
― ―
California Annual
Grassland Alliance

0.01/38 0.01/76
Eucalyptus (Eucalyptus
spp.) Alliance
― <0.01/24
1 Note that the placement of Street A adjacent to Drainage 1 was imposed by the City fire marshal as a part of fire risk safety requirements.

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Packet Pg. 785 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TO: SHIZAO ZHENG
SUBJECT: DETERMINATION OF BIOLOGICALLY EQUIVALENT OR SUPERIOR PRESERVATION REPORT FOR THE

GATEWAY HEIGHTS PROJECT, MORENO VALLEY, CALIFORNIA
11675 8 OCTOBER 2022
Table 3. Permanent Impacts to MSHCP Riverine Resources within the Project Site Feature
Vegetation Community
and/or Land Cover
Alternative 1 MSHCP
Riverine Resources
(Acres/Linear Feet) *
Alternative 2 MSHCP
Riverine Resources
(Acres/Linear Feet) *
Disturbed Habitat ― ―
Urban/Developed ― ―
Drainage 1 MSHCP Riverine Total 0.01/38 0.01/100
Tributary 1 Brittlebush Alliance 0.02/307 0.02/307
California Annual
Grassland Alliance

0.01/284 0.01/284
Eucalyptus Alliance <0.01/82 <0.01/82
Tributary 1 MSHCP Riverine Total 0.03/674 0.03/674
Drainage 2 Brittlebush Alliance ― ―
Disturbed Habitat ― ―
Drainage 2 MSHCP Riverine Total ― ―
Tributary 2 Brittlebush Alliance ― ―
Tributary 2 MSHCP Riverine Total ― ―
Grand Total* 0.04/712 0.05/774
Notes: MSHCP = Multiple Species Habitat Conservation Plan * Acreage may not total due to rounding.

2.3 Mitigation and Equivalency
Direct Effects
The proposed project will impact 0.04 acres (Alternative 1) or 0.05 acres (Alternative 2) of MSHCP riverine resources. In its existing condition, the riverine habitat within the project site supports groundwater recharge, sediment transport, and nutrient cycling. It also serves as a hydrological connection to downstream resources. Due to the narrow width and minimal vegetation within the features on site, value as wildlife habitat is limited; however, water conveyance through these features can contribute to wildlife habitat downstream in Box Springs Canyon Wash, particularly for the area plan’s planning species: Bell’s sage sparrow (Artemisiospiza belli), cactus wren (Campylorhynchus brunneicapillus), loggerhead shrike (Lanius ludovicianus), rufous-crowned sparrow (Aimophila ruficeps), and bobcat (Lynx rufus). Box Springs Canyon Wash is not conserved or described for conservation; however, it does connect to the Santa Ana River, approximately 4.5 miles downstream, presumably through a series of storm drains following the terminus of Box Springs Canyon Wash in Quail Run Park. Given that the proposed project design will retain the hydrological connectivity downstream through the use of detention basins and culverts, many of the hydrological functions and values, including sediment transport and contribution to downstream wildlife habitat, will remain following project implementation. Groundwater recharge and nutrient cycling will be slightly F.1.c
Packet Pg. 786 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TO: SHIZAO ZHENG
SUBJECT: DETERMINATION OF BIOLOGICALLY EQUIVALENT OR SUPERIOR PRESERVATION REPORT FOR THE

GATEWAY HEIGHTS PROJECT, MORENO VALLEY, CALIFORNIA
11675 9 OCTOBER 2022
reduced due to the undergrounding of parts of Tributary 1 and the installation of riprap at the terminus of Drainage 1; however, some elements of these functions will remain following project implementation.

The Applicant proposes to compensate for impacts to MSHCP riverine areas by providing a 1:1 ratio of reestablishment credit at Riverpark Mitigation Bank, or at a 2:1 ratio of rehabilitation credits if re-establishment credits are not available. Re-establishment within Riverpark consists of the re-creation of alkali playa wetland habitat in areas where it once historically existed. Furthermore, re-establishment credits result in a return of hydrology, as well as plantings with riparian plant species. A purchase of credits at Riverpark is expected to create contiguous habitat that will provide wildlife habitat and support groundwater recharge, sediment transport, and nutrient cycling. Due to its location within the Plan Area, this habitat is expected to provide habitat for MSHCP planning species, including some of those listed in the Area Plan for this project. Given that implementation of the proposed project is expected to preserve hydrological functions and values, the reestablishment of both hydrology and species is expected to be equivalent preservation. Furthermore, the planting of riparian species serves as a functional lift as compared to what will be lost as a result of the project because the features lost as a result of the proposed project are unvegetated.

While the Applicant intends to purchase mitigation credits from Riverpark Mitigation Bank, if credits at Riverpark Mitigation Bank are not available prior to grading, the Applicant will compensate for impacts at a 2:1 ratio at offsite land within the MSHCP Plan Area for the purpose of in-perpetuity preservation, through the purchase of mitigation credits at an established off-site Mitigation Bank or In-lieu Fee Program, or as otherwise determined through coordination with the resource agencies. Mitigation proposed on land acquired for the purpose of inperpetuity mitigation (that would not be part of an agency-approved Mitigation Bank or In-lieu Fee Program) shall include the preservation, rehabilitation, reestablishment, and/or creation of similar habitat within the Santa Ana Watershed pursuant to a Habitat Mitigation and Monitoring Plan. The Habitat Mitigation and Monitoring Plan shall be prepared prior to any impacts and it shall provide details as to the implementation of mitigation, maintenance, future monitoring, and management. The goal of the mitigation shall be to preserve, rehabilitate, reestablish, or create similar habitat with equal or greater function and value than the affected habitat. The Habitat Mitigation and Monitoring Plan would be provided to the following agencies for their review and approval, prior to any project ground disturbance: City, California Department of Fish and Wildlife, U.S. Fish and Wildlife Service, and Regional Water Quality Control Board.

Indirect Effects
While the proposed project intends to avoid direct effects to all of Drainage 2 and Tributary 2, and partially avoid direct effects to Drainage 1 and Tributary 1, there is potential for indirect effects both from project construction and project operations. Indirect effects can consist of unintended runoff that can lead to toxicants or invasive species spreading downstream, noise and light effects that can negatively affect planning species, or edge effects that can lead to proliferation of non-native species at the interface of native and human-modified habitats.

To combat these indirect effects, the proposed project will implement the Urban/Wildlife Interface Guidelines. Each of the Urban/Wildlife Interface Guidelines are further discussed below. ▪ Drainage/Toxics: The proposed project includes the construction of a debris basin and water quality basin.

Furthermore, the project will include the development of a stormwater pollution prevention plan. With implementation of these measures, the project would be consistent with these requirements of the MSHCP F.1.c
Packet Pg. 787 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TO: SHIZAO ZHENG
SUBJECT: DETERMINATION OF BIOLOGICALLY EQUIVALENT OR SUPERIOR PRESERVATION REPORT FOR THE

GATEWAY HEIGHTS PROJECT, MORENO VALLEY, CALIFORNIA
11675 10 OCTOBER 2022
and no further actions are required. During project construction, the following best management practices will be implemented in order to avoid unintended drainage into avoided riverine features and other off-site areas:
o Construction limits shall be clearly flagged so that adjacent native vegetation and riverine features are avoided.
o Silt fencing and straw waddles will be employed at the edge of construction boundaries, including cut and fill slopes, in order to prevent unintended runoff from draining off-site. o Construction work and operations areas shall be kept clean of debris, such as trash and construction materials. Fully covered trash receptacles that are animal-proof will be installed and used during construction to contain all food, food scraps, food wrappers, beverage containers, and other miscellaneous trash. Trash contained within the receptacles will be removed at least once a week from the proposed project site.
o Staging and storage areas for spoils, equipment, materials, fuels, lubricants, and solvents shall be located within the designated impact area or adjacent developed areas, away from riverine features.
▪ Lighting/Noise: The project is located immediately north of existing residential development and adjacent to Morton Road. The project will incorporate a setback consisting of open space within the northern portion of the project site. Therefore, night lighting and noise will not impact existing or future MSHCP Conservation Areas and the project would be consistent with these requirements of the MSHCP. ▪ Barriers: The project does not include fencing or other barriers that would impede wildlife. Furthermore, the project site does not function as a corridor for wildlife. Additionally, the area is not identified as a wildlife movement corridor by the MSHCP; therefore, the project would be consistent with these requirements of the MSHCP.
▪ Grading/Land Development: No manufactured slopes extend within existing or planned Conservation Areas; therefore, the project would be consistent with these requirements of the MSHCP. ▪ Invasives: Invasive species provided in MSHCP Table 6-2 are not to be used in development or restoration plan activities for projects adjacent to conservation areas. As described in MM-BIO-4 of the biological resources report (Dudek 2021b), the project shall not use invasive species as defined in the MSHCP Table 6-2 within its landscape plan. With implementation of this measure, the project would be consistent with this requirement of the MSHCP.
▪ Fuel Modification: Weed abatement and fuel modification zones do not encroach into existing or planned Conservation Areas; therefore, the project would be consistent with these requirements of the MSHCP. 3 Conclusion
The proposed project will directly impact 0.04 acres (Alternative 1) or 0.05 acres (Alternative 2) of MSHCP riverine resources. The proposed mitigation of a purchase of re-establishment credits at a 1:1 ratio will provide biological equivalency for the resources lost. Furthermore, the implementation of the MSHCP Urban/Wildlife Interface Guidelines will avoid indirect impacts to MSHCP riverine resources.

F.1.c
Packet Pg. 788 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TO: SHIZAO ZHENG
SUBJECT: DETERMINATION OF BIOLOGICALLY EQUIVALENT OR SUPERIOR PRESERVATION REPORT FOR THE

GATEWAY HEIGHTS PROJECT, MORENO VALLEY, CALIFORNIA
11675 11 OCTOBER 2022
If you have any questions regarding this determination of biologically equivalent or superior preservation letter report, please feel free to contact me at [email protected] or at 951.300.1088.

Sincerely,
_______________________
Anna Cassady
Biologist
4 References
County of Riverside. 2003. Western Riverside County Multiple Species Habitat Conservation Plan. County of Riverside, Transportation and Land Management Agency, Riverside County Integrated Project. MSHCP adopted June 17, 2003. Accessed February 2019. http://www.rctlma.org/mshcp.

Dudek. 2019. Jurisdictional Waters Delineation Update Report for Gateway Heights, City of Moreno Valley, Riverside County, California. Prepared for Shizao Zheng. March 2019.

Dudek. 2021a. Jurisdictional Waters Delineation Update Report for the Gateway Heights Project. December 17, 2021.

Dudek. 2021b. Biological Resources Letter Report and MSHCP Consistency for the Gateway Heights Project.

December 17, 2021.

Dudek. 2021c. “Gateway Heights Project Fire Hazard Analysis and Approach. October 19, 2021.

EPA (U.S. Environmental Protection Agency). 2019. “Watershed Assessment, Tracking & Environmental Results (WATERS).” Last updated December 15, 2017. Accessed February 2019. https://www.epa.gov/ waterdata/viewing-waters-data-using-google-earth.Google Earth. 2019. Aerial photograph. 1:200 scale.

Historic Aerials. 2019. www.historicaerials.com.

Klein, A., and J. Evens. 2006. Vegetation Alliances of Western Riverside County, California. Final report prepared for the California Department of Fish and Game Habitat Conservation Division. Sacramento, California:

California Native Plant Society. Published August 2005; revised April 2006. Accessed February 2019. www.cnps.org/cnps/vegetion/pdf/wriv_vegetation_ cnpsfinalreport_April2006.pdf.

Oberbauer, T., M. Kelly, and J. Buegge. 2008. Draft Vegetation Communities of San Diego County. March 2008.

Accessed February 2019. http://www.sdcanyonlands.org/pdfs/veg_comm_sdcounty_2008_doc.pdf.

USDA. 2019b. Web Soil Survey. August 21, 2017. Accessed February 2019. http://websoilsurvey.nrcs.usda.gov.

USFWS. 2019. Critical Habitat for Threatened and Endangered Species [digital GIS data]. September 28, 2018.

Washington, DC: U.S. Fish & Wildlife Service. Accessed February 2019. https://fws.maps.arcgis.com/ home/webmap/viewer.html?webmap=9d8de5e265ad4fe09893cf75b8dbfb77 F.1.c
Packet Pg. 789 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TO: SHIZAO ZHENG
SUBJECT: DETERMINATION OF BIOLOGICALLY EQUIVALENT OR SUPERIOR PRESERVATION REPORT FOR THE

GATEWAY HEIGHTS PROJECT, MORENO VALLEY, CALIFORNIA
11675 12 OCTOBER 2022
USGS (U.S. Geological Survey). 2019. National Hydrography Dataset. https://www.usgs.gov/core-science-systems /ngp/national-hydrography.

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Packet Pg. 790 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Attachment A
Figures
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rojectLocation
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Packet Pg. 792 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Alternative 1 Site Plan
Determination of Biologically Equivalent or Superior Preservation Report for the Gateway Heights Project FIGURE 2a
Z:\Projects\j1167501\MAPDOC\DBESP Report
SOURCE: United Engineering Group 2022
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Packet Pg. 793 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Alternative 2 Site Plan
Determination of Biologically Equivalent or Superior Preservation Report for the Gateway Heights Project FIGURE 2b
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Packet Pg. 798 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Appendix C
Cultural Reports

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Packet Pg. 799 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Tel: 909 824 6400 Fax: 909 824 6405
December 18, 2018
Shizao Zheng
1378 West Zhongshan Road
Ningbo City, Zhejiang Province
People’s Republic of China
Re: Update to Previous Cultural Resources Studies
Tentative Tract Map No. 37557, Assessor’s Parcel No. 256-150-001 City of Moreno Valley, Riverside County, California
CRM TECH Project #3411
Dear Mr. Zheng:

At your request, CRM TECH conducted a historical/archaeological resources records search, historical background research, and a field inspection on Assessor’s Parcel No. 256-150-001 (Tentative Tract Map No. 37557, formerly Tentative Tract Map No. 33626) in the northwestern portion of the City of Moreno Valley, Riverside County, California. The subject property consists of approximately 36 acres of vacant land located to the north of the intersection of Morton Road and Jennings Court, in the northwest quarter of Section 34, T2S R4W, San Bernardino Baseline and Meridian (Figs. 1, 2). This letter presents a summary of the methods, results, and final conclusions of these research procedures.

Background
As you know, the project area was previously the subject of a standard Phase I cultural resources survey completed by CRM TECH in 2007 (Smallwood et al. 2007; see attachment). The scope of that study also included a records search, historical research, and a systematic field survey, along with consultation with Native American representatives. As a result of the survey, two archaeological sites, 33-015937 (CA-RIV-8274/H) and 33-015938 (CA-RIV-8275), and a prehistoric isolate, 33-015967, were identified and recorded within the project boundaries (ibid.:10- 11). In order to evaluate their qualifications as “historical resources,” as defined by the California Environmental Quality Act (CEQA), archaeological testing was recommended on the two sites (ibid.:14-15). The isolate was not considered a potential “historical resource” due to its lack of contextual integrity (ibid.:14).

Later that year, Sites 33-015937 and 33-015938 were treated with a testing program, which included surface collection of artifacts and the excavation of shovel test pits, standard archaeological units, and mechanical trenches (Sander and Daly 2007:10; see attachment). In the meantime, focused historical research was also completed on Site 33-015937 (Daly 2007a; 2007b). Throughout the excavations, no subsurface cultural remains were discovered (Sander and Daly 2007:15), and the historical research did not identify any significant persons or events associated with the sites, nor any other historical quality of distinction (Daly 2007a:n.p.; 2007b:2). Therefore, the two sites were determined not to meet CEQA definition of “historical resources” (Sander and Daly 2007:15).

CRM TECH
1016 E. Cooley Drive, Suite A/B
Colton, CA 92324
F.1.c
Packet Pg. 800 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) 2 Figure 1. Location and configuration of the project area. (Based on USGS Riverside East, Calif., 7.5 quadrangle, 1980 edition)
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Packet Pg. 801 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) 3 Figure 2. Aerial image of the project area. (Based on Google Earth imagery) F.1.c
Packet Pg. 802 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) 4 However, at the conclusion of the testing program, archaeological monitoring was recommended for any ground-disturbing activities with 30 meters (100 feet) of the site boundaries (ibid.:16). Because the 2007 studies are now 11 years old, the research procedures implemented during this study are designed as an update to re-examine and confirm the findings.

Records Search
A standard one-mile-radius records search was conducted on November 14, 2018, by CRM TECH archaeologist Nina Gallardo, B.A., at the Eastern Information Center (EIC), University of Riverside, California. The results of the records search indicate that in addition to the survey and testing reports summarized above, another cultural resources survey also took place within the project boundaries in 2007 (Schmidt 2007). That survey was focused on the site of a wooden power pole that was slated to be replaced (#7264 in Fig. 3), and no cultural resources was identified in the vicinity (ibid.:2).

No other studies have occurred in the project area since 2007, according to EIC records, and Sites 33-015937 and 33-015938 and Isolate 33-015967 remain the only cultural resources recorded in the immediate vicinity. As stated above, all three of these known cultural resources were previously determined not to constitute “historic resources” under CEQA provisions. Since no new information has come to light that would necessitate a re-examination of the previous evaluation, Sites 33- 015937 and 33-015938 and Isolate 33-015967 require no further consideration during this study.

Outside the project area but within the one-mile radius, EIC records show that as of today at least 35 other cultural resources studies have been completed on various tracts of land and linear features, compared to the 14 studies inventoried in 2007 (Smallwood et al. 2007:9). Meanwhile, eight additional historical/archaeological resources have been recorded into the California Historical Resources Inventory since 2007, bringing the total number of recorded cultural resources within the scope of the records search to 46, including Sites 33-015937 and 33-015938 and Isolate 33-015967.

Other than these three, none of the localities was found in the immediate vicinity of the project area.

The vast majority of the recorded cultural resources were prehistoric—i.e., Native American—in origin, consisting predominantly of bedrock milling features but also including groundstone, chipped stone artifacts, and a rockshelter with midden soil. Seven sites and one isolate dated to the historic period and included buildings, a refuse scatter, a former military shooting range, and structural remains along a former Santa Fe Railway siding. Since none of these sites and isolates has any potential to be impacted by the proposed subdivision and development of the project area, they, too, require no further consideration.

Supplemental Historical Research
Historical background research for this study was conducted for the purpose of supplementing and updating the findings of the 2007 studies with information from sources that have become available since then, such as aerial photographs taken between 1966 and 2018, accessible at the Nationwide Environmental Title Research (NETR) Online website and through the Google Earth software. As mentioned in the 2007 survey report, an apparent homestead was once located in the northeast portion of the project area, at the location of Site 33-015937 (Smallwood et al. 2007:11-12). The F.1.c
Packet Pg. 803 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) 5 Figure 3. Previous cultural resources studies in the vicinity of the project area, listed by EIC file number. Locations of known historical/archaeological sites are not shown as a protective measure.

F.1.c
Packet Pg. 804 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) 6 aerial photographs confirmed the presence of at least one residence and several ancillary structures at that location during the 1960s-1970s (NETR Online 1966-1978). By 1994, all of the buildings and structures had been removed, and some grading or clearing had occurred in the project area for unknown purposes (NETR Online 1994; Google Earth 1994). Since then, the property has remained entirely undeveloped to the present time, with only occasional vegetation clearing and off-road vehicle activities evident (NETR Online 2002-2014; Google Earth 2002-2018).

Field Inspection
On November 21, 2018, CRM TECH field director/archaeologist Daniel Ballester conducted a “spot-check” field inspection of the project area. The archaeological fieldwork was focused primarily on the locations of the three previously recorded cultural resources in order to update observations made in 2007, and the rest of the project area was inspected along the southern and western perimeters for an overview of the current conditions of the property. Ground visibility ranged from poor (as low as 5%) where dense vegetation grows around several springs to excellent (essentially 100%) where all vegetation has been removed (Fig. 4). The field inspection reveals that features of Sites 33-015937 and 33-015938, such as the bedrock milling features and the structural remains, are still present today and are in a similar condition as in 2007, but the groundstone artifact at Isolate 33-015967 could not be located. No other potential cultural resources were encountered within or adjacent to the project boundaries during the field inspection.

Figure 3. Current condition of the project area. (Photograph taken November 21, 2018; view to the northeast) Conclusion and Recommendations
Based on the research results outlined above, CRM TECH present the following recommendations to the City of Moreno Valley:

F.1.c
Packet Pg. 805 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) 7 • No “historical resources,” as defined by CEQA, are present within or adjacent to the project area, and thus proposed project will have No Impact on any “historical resources.” • In light of the possibility for additional cultural remains to be unearthed during earth-moving operations at or near Sites 33-015937 and 33-015938, the 2007 recommendation for archaeological monitoring within 30 meters (100 feet) of the site boundaries remains valid and appropriate.
• If any subsurface cultural materials are encountered during earth-moving operations elsewhere in the project area, all work within 50 feet of the discovery should be halted or diverted until a qualified archaeologist can evaluate the nature and significance of the finds.

Thank you for this opportunity to be of service. If you have any questions or need further information regarding this study, please do not hesitate to contact our office.

Sincerely,
Bai “Tom” Tang, M.A.

Principal, CRM TECH
Reference Cited:

Daly, Pamela
2007a Historic Resources Assessment Report: APN 256-150-001-4, Moreno Valley, California 92555. On file, Eastern Information Center, University of California, Riverside (#RI-07887, Appendix A; see attachment).
2007b Kincaid Development Project: Results of an Archaeological Test Program at CA-RIV8274/H and CA-RIV-8275, Moreno Valley, Riverside County, California. Letter to the City of Moreno Valley, dated September 3. On file, Planning Division, Community Development Department, City of Moreno Valley (Case #PA05-0073; see attachment).

Google Earth
1994-2018 Aerial photographs of the project vicinity; taken in 1994, 2002-2006, 2008, 2009, 2011-2014, and 2016-2018. Available through the Google Earth software.

NETR Online
1966-2014 Aerial photographs of the project vicinity; taken in 1966, 1967, 1978, 1994, 2002, 2005, 2009, 2010, 2012, and 2014. http://www.historicaerials.com.

Sander, Jay K., and Pamela Daly
2007 Kincaid Development Project: Results of an Archaeological Test Program at CA-RIV8274/H and CA-RIV-8275, Moreno Valley, Riverside County, California. On file, Eastern Information Center, University of California, Riverside (#RI-07887; see attachment).

Schmidt, James J.
2007 DWO 6077-4800; AI # 7-4801, -4802, -4807, -4809, AI # 6-4800, -4884, -4886, -4887; Various Circuits, Riverside County; Idyllwild, San Jacinto Peak, Lakeview, Riverside East, and Lake Elsinore Quadrangles. On file, Eastern Information Center, University of California, Riverside (#RI-07264).

F.1.c
Packet Pg. 806 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) 8 Smallwood, Josh, Mariam Dahdul, Daniel Ballester, and Laura H. Shaker 2007 Historical/Archaeological Resources Survey Report: Tentative Tract Map No. 33626, City of Moreno Valley, Riverside County, California. On file, Eastern Information Center, University of California, Riverside (#RI-07357; see attachment).

F.1.c
Packet Pg. 807 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) 9 ATTACHMENT
2007 PHASE I CULTURAL RESOURCES SURVEY REPORT AND

PHASE II ARCHAEOLOGICAL TESTING REPORT
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Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) From: Kay White <[email protected]>
Sent: Tuesday, July 17, 2007 2:00 PM
To: [email protected]
Subject: Numbers
Mike/Tom: It is really a good thing that I retired. Maybe I should not have come back to work at all.!!!!! I gave you incorrect trinomials for this project. I have corrected them in blue below.

Please correct your records. Sorry about this. kay
*************************************************
Josh: We did get these records and sent you numbers on May 10, 2007. Here they are again. *******************************************
Hi John:

We have assigned the following primary numbers and trinomials to the records you recently submitted. Please submit one hard copy of each record complete with numbers on every page.

CRM TECH 2060-1/H = 33-15937 and CA-RIV-7284 should be CA-RIV-8274 CRM TECH 2060-2 = 33-15938 and CA-RIV-7285 should be CA-RIV-8275 Thanks.
kay
~~~~~~~~~~~~~~~~~~~~~
Kay H. White
Administrative Assistant
Eastern Information Center
c/o Department of Anthropology
University of California
Riverside, CA 92521-0418
(951) 827-5745
Fax (951) 827-5409
~~~~~~~~~~~~~~~~~~~~~
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Packet Pg. 935
Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Appendix D
Energy Calculations

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Packet Pg. 936 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Energy Use Summary
Construction Phase (gallons/construction period) Gasoline Diesel Construction Vehicles 10,413 10,457
Worker Trips 4,373 19
Vendor Trips 1,070 17
Haul Trucks 15 12,642
Total 15,871 23,135
Operations Phase (gallons/year) Gasoline Diesel
Natural Gas
(kBTU/yr) Electricity (kWh/yr)
Condominiums 120,409 1,533 2,447,660 609,342
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
All Land Uses 120,409 1,533 2,447,660 609,342
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Packet Pg. 937 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Operations Onroad Energy Use
Year 2023
Vehicle Types MPG by Fuel Type Population by Fuel Type
GAS DSL ELEC GAS DSL ELEC Total
LDA 31.7 50.0 6,635,002 62,493 150,700 6,697,495
LDT1 27.2 22.9 758,468 361 7,123 758,828
LDT2 25.5 36.7 2,285,150 15,595 28,810 2,300,745
LHDT1 10.7 21.9 174,910 125,545 300,455
LHDT2 9.3 19.8 30,103 50,003 80,106
MCY 36.4 305,045 305,045
MDV 20.7 28.1 1,589,863 36,128 16,377 1,625,991
MH 5.2 10.7 34,680 13,123 47,802
MHDT 5.1 11.2 25,624 122,124 147,749
HHDT 4.3 7.1 75 109,819 109,894
OBUS 5.1 8.7 5,955 4,287 10,242
SBUS 9.2 7.7 2,784 6,672 9,455
UBUS 5.1 5.9 958 13 16 971
Trips/Day Trips/day Trips/day Trips/day Total VMT/day VMT/day VMT/day Trip Length Land Use Weekday Saturday Sunday Weekly Weekday Saturday Sunday Condominiums 1,020.00 996.00 850.00 6946 9,572 9,347 7,977 9.38 Total 1,020 996 850
Fleet Mix
Land Use LDA LDT1 LDT2 MDV LHD1 LHD2 MHD HHD OBUS UBUS MCY SBUS MH Total Condominiums 0.614215 0.040586 0.209252 0.126005 0 0 0 0 0.001578 0.001284 0.005047 0.001028 0.001005 100.0% Vehicle Trips
Weekday Trips LDA LDT1 LDT2 MDV LHDT1 LHDT2 MHDT HHDT Obus Ubus MCY Sbus MH Total Daily VMT Condominiums 626 41 213 129 0 0 0 0 2 1 5 1 1 1,020 9,571.84 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -
Total 626 41 213 129 0 0 0 0 2 1 5 1 1 1,020
Saturday Trips LDA LDT1 LDT2 MDV LHDT1 LHDT2 MHDT HHDT Obus Ubus MCY Sbus MH Total Daily VMT Condominiums 612 40 208 126 0 0 0 0 2 1 5 1 1 996 9,346.62 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -
Total 612 40 208 126 0 0 0 0 2 1 5 1 1 996
Sunday Trips LDA LDT1 LDT2 MDV LHDT1 LHDT2 MHDT HHDT Obus Ubus MCY Sbus MH Total Daily VMT Condominiums 522 34 178 107 0 0 0 0 1 1 4 1 1 850 7,976.53 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -
Total 522 34 178 107 0 0 0 0 1 1 4 1 1 850
Gallons of Fuel
Gasoline LDA LDT1 LDT2 MDV LHDT1 LHDT2 MHDT HHD Obus Ubus MCY Sbus MH Total Condominiums 65,056 5,062 27,582 20,203 0 0 0 0 608 843 470 112 474 120,409 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
65,056 5,062 27,582 20,203 0 0 0 0 608 843 470 112 474 120,409 Total Gallons Gasoline Diesel LDA LDT1 LDT2 MDV OBUS LHDT2 MHDT HHD Obus Ubus MCY Sbus MH Total Condominiums 388 3 131 337 0 0 0 0 256 10 0 320 87 1,533 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
388 3 131 337 0 0 0 0 256 10 0 320 87 1,533 Total Gallons Diesel 121,942 Total Gallons of Diesel and Gasoline
28 Average MPG
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Packet Pg. 938 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Utilities
NaturalGas Use Electricity Use
Land Use kBTU/yr kWh/yr
Condominiums 2,447,660 609,342
0 0
0 0
0 Total 2,447,660 609,342
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Packet Pg. 939 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Offroad Construction Equipment Energy Use
PhaseName OffRoadEquipmentType
OffRoadEqui
pmentUnitA
mount UsageHours HorsePower Load Factor Horsepower Category Num Days Year Fuel Consumption Rate
(gal/hour) Fuel Type
Total Fuel Consumption
(gal/construction period)
Site Preparation Rubber Tired Dozers 1 8 247 0.4 300 10 2022 4.5 Diesel 145 Site Preparation Tractors/Loaders/Backhoes 0 8 97 0.37 100 10 2022 1.6 Diesel 0 Grading Excavators 0 8 158 0.38 175 44 2022 2.9 Diesel 0 Grading Graders 0 8 187 0.41 175 44 2022 3.2 Diesel 0
Grading Rubber Tired Dozers 1 8 247 0.4 300 44 2022 4.5 Diesel 639 Grading Scrapers 2 8 367 0.48 300 44 2022 5.6 Diesel 1,878 Grading Tractors/Loaders/Backhoes 0 8 97 0.37 100 44 2022 1.6 Diesel 0 Building Construction Cranes 1 7 231 0.29 300 264 2022 3.3 Diesel 1,760 Building Construction Forklifts 3 8 89 0.2 100 264 2022 2.0 Diesel 2,539 Building Construction Generator Sets 1 8 84 0.74 100 264 2022 5.2 Gasoline 8,123 Building Construction Tractors/Loaders/Backhoes 3 7 97 0.37 100 264 2022 1.6 Diesel 3,263 Building Construction Welders 1 8 46 0.45 50 264 2022 2.4 Gasoline 2,290 Paving Pavers 1 8 130 0.42 100 10 2022 1.7 Diesel 58
Paving Paving Equipment 1 8 132 0.36 100 10 2022 1.6 Diesel 47 Paving Rollers 1 8 80 0.38 100 10 2022 1.7 Diesel 51
Architectural Coating Air Compressors 1 6 78 0.48 100 20 2022 1.3 Diesel 76 Total Gasoline 10,413
Total Diesel 10,457
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Packet Pg. 940 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Onroad Construction Energy Use
Year 2022
Vehicle Types MPG by Fuel Type Population by Fuel Type
GAS DSL ELEC GAS DSL ELEC Total
LDA 30.8 48.7 6,542,832 58,938 127,533 6,601,770
LDT1 26.5 22.6 736,906 387 5,339 737,293
LDT2 24.7 35.7 2,246,303 14,235 22,590 2,260,537
LHDT1 10.5 21.6 175,903 119,381 295,284
LHDT2 9.2 19.5 30,010 47,336 77,346
MCY 36.4 295,960 295,960
MDV 20.0 27.4 1,579,640 33,349 11,658 1,612,989
MH 5.2 10.6 35,098 12,759 47,857
MHDT 5.1 10.7 25,445 123,310 148,755
HHDT 4.2 6.7 78 108,362 108,440
OBUS 5.0 8.5 5,959 4,274 10,234
SBUS 9.1 7.6 2,631 6,631 9,262
UBUS 4.9 6.0 952 14 17 966
Input Gasoline Consumption Diesel Consumption
Phase Name Worker Trip Number Vendor Trip Number Hauling Trip Number Worker Trip Length Vendor Trip Length Hauling Trip Length Worker Vendor Haul Worker Vendor Haul Site Preparation 3 0 0 14.7 6.9 20
Grading 8 0 4267 14.7 6.9 20
Building Construction 25 12 0 14.7 6.9 20
Paving 8 0 0 14.7 6.9 20
Architectural Coating 16 0 0 14.7 6.9 20
Adjusted
Site Preparation 30 0 0 14.7 6.9 20 18 0 0 0 0 0
Grading 352 0 4267 14.7 6.9 20 208 0 15 1 0 12,642
Building Construction 6600 3168 0 14.7 6.9 20 3,909 1,070 0 17 17 0 Paving 80 0 0 14.7 6.9 20 47 0 0 0 0 0
Architectural Coating 320 0 0 14.7 6.9 20 190 0 0 1 0 0 Total 4,373 1,070 15 19 17 12,642
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Packet Pg. 941 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Appendix E
Geotechnical Report

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Packet Pg. 942 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) LG C GED-ENVIRONMENTAL, INC.

PRELIMINARY GEOTECHNICAL INVESTIGATION FOR THE PROPOSED SINGLE-FAMILY RESIDENTIAL DEVELOPMENT, TENTATIVE TRACT MAP NO. 37557, CITY OF MORENO VALLEY, RIVERSIDE COUNTY, CALIFORNIA.

Dated: September 22, 2018
Project No. G18-1648-10
Prepared For:

Shizao Zheng
1378 West Zhorgshan Road
Ningbo City, Zhejiang Province
China
21510 Commerce Center Drive. Sulle.128, Temecula, California 92590 Phone: 951.2912450 I Fax: 951.119.2998 I www.1gcgeoe11v.com F.1.c
Packet Pg. 943 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) LGC GED"'!,ENVIR NMENTAL, INC.

GEOTECHNI CAL • E NVIRONMENTAL • MATERIALS TESTING • SWPPP September 22, 2018
Shizao Zheng
1378 West Zhorgshan Road
Ningbo City, Zhejiang Province
China
Project No. G18-1648-10
Subject: Preliminary Geotechnical Investigation for the Proposed Single-Family Residential Development, Tentative Tract Map No. 37557, City of Moreno Valley, Riverside County, California.

LGC Geo-Environmental, Inc. {LGC) is pleased to submit herewith our preliminary geotechnical investigation report for the proposed single-family residential development, Tentative Tract Map No. 37557, City of Moreno Valley, Riverside County, california.

This report presents the results of our review of published geologic/geotechnical reports, maps, and aerial photographs relative to the area that includes the site; our field exploration, geologic mapping, and laboratory testing; and geotechnical and geologic judgment, opinions, conclusions and preliminary recommendations associated with the proposed residential development.

Based on the results of the scope of our work and our review of the conceptual grading plan tract map, it Is our opinion that the subject site is suitable for the proposed residential development, provided that the recommendations presented herein are incorporated into the design and implemented during grading and construction. LGC should review the final grading plans, as well as any foundation/structural plans when those become available, and revise the recommendations presented herein, If necessary.

LGC is pleased to have been retained to be of service to you during the design stages of this project. Should you have any questions regarding the contents of this report or should you require additional information, please do not hesitate to contact us.

Respectfully submitted,
LGC Geo-Environmental, Inc.

Robert L. Gregorek II, CEG 1257
Certified Engineering Geologist

AJR/RLG/JPN
Distribution: ( 4) Addressee
2 7570 COMMERCE CENTER OR., #1 2B, TEMECULA, CALIFORNIA 92590 PHON E: (951 ) 297•2450 • F"AX: (95 1) 71 9-299B • WWW, LGCGEOENV.COM F.1.c
Packet Pg. 944 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

TABLE OF CONTENTS
Section Page

1.0 INTRODUCTION ................................................................................................ 1

1.1 Proposed Construction and Grading ................................................................. 1

1.2 Location and Site Description ................................................................................... 1

1.3 Existing Improvements and Vegetation ............................................................. 3

1.4 Topography and Drainage ............................................................................... 3

1.5 Research of Previous Geological and Geotechnical Data ..................................... 3

1.6 Aerial Photograph Analysis .............................................................................. 3

2.0 FIELD INVESTIGATION ..................................................................................... 3

2.1 Geologic Mapping .......................................................................................... 3

2.2 Field Exploration ............................................................................................ 3

2.3 Laboratory Testing ......................................................................................... 4

3.0 FINDINGS ..................................................................... · .................. ................... 4

3.1 Regional Geologic Setting ............................................................................... 4

3.2 Local Geology and Soil Conditions ................................................................... .4

3.3 Landslides ..................................................................................................... 6

3.4 Groundwater ................................................................................................. 6

3.5 Caving .......................................................................................................... 6

3.6 Surface Water ............................................................................................... 6

3.7 Faulting ........................................................................................................ 6 3 .8 Seismicity ...................................................................................................... 7

3.9 Settlement-Analysis ........................................................................................ 7

4.0 CONCLUSIONS AND RECOMMENDATIONS ........................................................ 8

4.1 General ......................................................................................................... 8

5.0 GEOLOGIC CONSIDERATIONS .......................................................................... 8

5.1 Slopes .......................................................................................................... 8

5.2 Faulting ........................................................................................................ 8

5.3 Groundwater ................................................................................................. 9

5.4 Subsidence ................................................................................................... 9

5.5 Landsliding .................................................................................................... 9

5.6 Ground Rupture ............................................................................................. 9

5. 7 Rock Fall. ...................................................................................................... 9

5.8 Tsunamis and Seiches .............................................................................................. 9

6.0 SEISMIC-DESIGN CONSIDERATIONS ............................................................... 9

6.1 Ground Motions ............................................................................................. 9

6.2 Secondary Seismic Hazards ........................................................................... 10 7 .0 GEOTECHNICAL-DESIGN PARAMETERS .......................................................... 10

7.1 Shrinkage/Bulking and Subsidence ................................................................. 10

7.2 Excavation Characteristics ............................................................................. 11 7 .3 Compressible/Collapsible Soil. ........................................................................ 11

8.0 SITE EARTHWORK .......................................................................................... 12

8.1 General Earthwork and Grading Specifications ................................................. 12

8.2 Geotechnical Observations and Testing .......................................................... 12

8.3 Clearing and Grubbing .................................................................................. 12

8.4 Private Sewage System Abandonment.. .......................................................... 12

8.5 Water-Well Capping ..................................................................................... 12

8.6 Overexcavation and Ground Preparation ......................................................... 13 Project No. GJB-1648-10 September 22, 2018
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Packet Pg. 945 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

8. 7 Subdrains .................................................................................................... 13

8.8 Fill Suitability ........................................................................................................... 13

8.9 Oversized Material ....................................................................................... 13

8.10 Cut/Fill Transitions and Differential Fill Thicknesses ................................................... 13

8.11 Benching ........................................................................................................................... 14

8.12 Fill Placement ................................................................................................................... 14

8.13 Inclement Weather .......................................................................................................... 14

9.0 SLOPE CONSTRUcnON .......................................................................................................... 14

9.1 Slope Stability ................................................................................................................... 14

9.2 Fill Slopes .......................................................................................................................... I4

9.3 Cut Slopes ......................................................................................................................... 14

9.4 Temporary Excavations ................................................................................................... 15

10.0 POST-GRADING CONSIDERATIONS .................................................................................. 15

10.1 Control of Surface Water and Drainage Control .......................................................... 15

10.2 Utility Trenches ................................................................................................................ 15

11.0 PRELIMINARY FOUNDATION DESIGN RECOMMENDATIONS ................................... 16

11.1 General ............................................................................................................................. 16

11.2 Allowable-Bearing Values ............................................................................................... 16

11.3 Settlement ........................................................................................................................ 16

11.4 Lateral Resistance ............................................................................................................ 16

11.5 Footing Setbacks from Descending Slopes ................................................................... 17

11.6 Building Clearances from Ascending Slopes ................................................................. 17

11.7 Footing Observations ...................................................................................................... 17

11.8 Expansive Soil Considerations ........................................................................................ 1 7

11.9 Footing/Floor Slabs - Very Low Expansion Potential ................................................... 17

12.0 RETAINING WALLS .................................................................................................................. 18

12.1 Lateral Earth Pressures and Retaining Wall Design Parameters .............................. 18

12.2 Footing Embedments ...................................................................................................... 19

12.3 Drainage ........................................................................................................................... 19

12.4 Temporary Excavations ................................................................................................... 20

12.5 Retaining Wall Backfill ..................................................................................................... 20

13.0 MASONRY GARDEN WALLS ................................................................................................... 20

13.1 Construction on Level Ground ........................................................................................ 20

13.2 Construction Joints .......................................................................................................... 20

14.0 CONCRETE FLATWORK ........................................................................................................... 21

14.1 Nonstructural Concrete Flatwork ................................................................................... 21

14.2 Joint Spacing .................................................................................................................... 21

14.3 Subgrade Preparation ..................................................................................................... 21

15.0 PLANTERS ................................................................................................................................... 22

16.0 SOIL CORROSIVI'TY ................................................................................................................. 22

16.1 Corrosivity to Concrete and Metal ................................................................................. 22

17.0 PLAN REVIEWS AND CONSTRUcnON SERVICES ......................................................... 22

18.0 UMITATIONS ............................................................................................................................ 23

LIST OF TABLES, APPENDICES AND ILLUSTRATIONS
Tables
Table 1 - Significant Faults in Proximity of the Project Site (Page 7) Project No. GJB-1648-10 ii September 22, 2018
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Packet Pg. 946 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Table 2 - Seismic Design Soil Parameters (Page 10)
Table 3 - Estimated Shrinkage/Bulking (Page 11)
Table 4 - Excavation Characteristics (Page 11)
Table 5 - Lateral Earth Pressures (Page 18)
Table 6 - Minimum Recommendations for Nonstructural Concrete Flatwork Over Very Low Expansive Soil (Page 21)
Figures & Plates
Figure 1 - Site Location Map (Page 2)
Figure 2 - Regional Geology (Page 5)
Plate 1 - Geotechnical Map (Rear of Text)
Appendices
Appendix A - References and Aerial Photographs (Rear of Text) Appendix B - Exploratory Trench Logs (Rear of Text)
Appendix C - Laboratory Testing Procedures and Test Results (Rear of Text) Appendix D - General Earthwork and Grading Specifications (Rear of Text) Project No. GJB-1648-10 iii September 22, 2018
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Packet Pg. 947 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

1.0 INTRODUCllON
This report presents the results of LGC Geo-Environmental, Inc.'s (LGC) geotechnical investigation for the proposed single-family residential development, Conceptual Grading Plan Tract Map No. 37557, City of Moreno Valley, Riverside County, california. The purpose of this geotechnical investigation was to evaluate the soil engineering properties of the surface and subsurface soil conditions on the site, and to provide geotechnical recommendations with respect to grading, construction, foundation design and other relevant geotechnical aspects related to the proposed residential development. The referenced conceptual grading plan tract map which was provided to LGC, was utilized as the base map for our Geotechnical Map (Plate 1) of the site.

1.1 1.2
Our scope of services included:
• A review of available published geologic/geotechnical literature, geologic maps, and aerial photographs pertinent to the site (Appendix A).
• Geologic mapping of the site.
• Subsurface exploration consisting of the excavating, sampling, and logging of ten (10) exploratory trenches, TR-1 through TR-8 and IT-1 through IT-2, to depths ranging from approximately 3.0 to

13.5 feet below the existing ground surface. All of the trenches were excavated using a backhoe.

The trenches were excavated to evaluate the general characteristics of the subsurface geologic/geotechnical conditions on the project site, including classification of site soil, determination of depth to groundwater (if present), and to obtain representative soil samples. • Laboratory testing of representative soil specimens collected during our subsurface exploration (Appendix C).
• Geotechnical engineering and geologic analyses of the data with respect to the proposed singlefamily development. • Preparation of General Earthwork and Grading Specifications (Appendix D). • Preparation of this report presenting our findings, conclusions and preliminary geotechnical design recommendations for the proposed development.

Proposed Construction and Grading
The referenced conceptual grading plan tract map prepared by Sikand Engineering dated June 13, 2018 indicates that the proposed development will consist of 24 single-family residential lots with associated roadways, walk ways, and hardscape, landscape areas and a water quality basin and a debris basin. It is anticipated that the structures will be up to two-stories, with wood/steel frame and masonry wall construction and some masonry block walls. This type of construction provides for relatively moderate to heavy loads imposed on the underlying foundation soil.

The referenced 80-scale tentative tract map indicates proposed cut and fill depths will be generally be approximately 32 and 22 feet, respectively. Proposed maximum cut and fill slope heights are about 55 feet and 22 feet respectively, at slope ratios of 2:1 (h:v) or flatter.

Location and Site Description
The site is located north of Jennings Court, west of Morton Road and east of the mountains at the base, in the City of Moreno Valley, in Riverside County, california. The site is irregular in shape and is approximately 32.8-acres in size. The site is moderately covered with annual weeds and shrubs, some cluster of trees and scatter boulders, mainly at the base of the mountain. The site also contains some scattered trash and debris. The general location and configuration of the site is shown on the Site Location Map (Figure 1).

Project No. GJB-1648-10 September 22/ 2018
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Packet Pg. 948 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) "© 2018 Google Inc., Google Earth, Aerial Imagery".

Pro·ect Name TENTATIVE TRACT MAP NO. 37557
FIGURE 1 Pro·ect No. G18-1648-10
SITE LOCATION MAP Geol./ En RLG/JPN
Scale NOT TO SCALE
Date SEPTEMBER 2018
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Packet Pg. 949 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

1..3

1..4
Topography and Drainage
The topography of the site is undulated with approximately four washes running down the site from the northeast. Elevations range from approximately 2,040 feet above mean sea level (msl) in the northeastern portion of the site to approximately 1,588 feet msl in the western portion of the site.

Existing Improvements and Vegetation
The site has not been previously developed. Vegetation consists of a moderate to dense cover of annual weeds/shrubs

1..5 Research of Previous Geological and Geotechnical Data LGC researched published and unpublished geotechnical reports and geologic data (Appendix A).

Pertinent site and geologic information were incorporated into the conclusions and recommendations presented in this report.

1..6 Aerial Photograph Analysis

2.1. 2.2
Google Earth Pro aerial imagery (from 1994 to 2018) was evaluated for the subject site and surrounding vicinity. The available information, as it pertains to the geologic and geotechnical issues of the proposed single-family residence, has been incorporated into the conclusions and recommendations presented in this report.

Our review of the aerial photographs indicates that the site has been a vacant property from 1994 to the present.

2.0 FIELD INVESTIGATION
Geologic Mapping
Surface geologic mapping of the site and accessible surrounding areas was completed by a geologist from this firm during September 2018, utilizing the referenced Conceptual Grading Plan Tract Map No. 37557 for plotting geologic observations. This information is plotted on the enclosed Geotechnical Map (Plate 1).

Field Exploration
Ten (10) exploratory trenches, TR-1 through TR-8 and IT-1 through IT-2, were excavated with a backhoe on September 4, 2018 and September 6, 2018 to depths of approximately 3.0 to 13.5 feet below the existing ground surface. The trenches were excavated to evaluate the general characteristics of the subsurface geologic/geotechnical conditions beneath the site, those include classification of site soil and bedrock, determination of groundwater elevations (if present), and the collection of representative soil samples.

Prior to our subsurface work, an underground utilities clearance was obtained from Underground Services Alert of Southern California. At the conclusion of the subsurface exploration, the trenches were backfilled with on-site materials with some compactive effort. Minor settlement of the backfill soil may occur over time.

Earth materials recovered from beneath the site were classified and logged by a geologist from LGC in accordance with the visual-manual procedures of the Unified Soil Classification System. The approximate locations of the exploratory borings and trenches are shown on the Geotechnical Map (Plate 1) and descriptive logs are presented in Appendix B.

Project No. GJB-1648-10 3 September 2,Z 2018
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Packet Pg. 950 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

2.3 3.1

3.2 Bulk samples of soil associated with the exploratory trenches were collected for laboratory testing. Bulk samples consisted of selected soil and bedrock materials obtained at various depth intervals from the exploratory trenches.
laboratory Testing
During our subsurface exploration, relatively undisturbed and bulk soil samples were retained for laboratory testing. Laboratory tests were performed on selected representative samples of onsite soil materials and included maximum dry density and optimum water content, expansion index, sulfate content, chloride content, pH, resistivity, and shear strength. A brief description of the laboratory test results and test data are presented in Appendix C.

3.0 FINDINGS
Regional Geologic Setting
The site is located in the Peninsular Ranges Geomorphic Province of California. The Peninsular Ranges are characterized by steep, elongated valleys that trend west to northwest. Locally the northwesttrending topography is controlled by the Elsinore fault zone, which extends from the San Gabriel River Valley southeasterly to the United States/Mexico border. The Santa Ana Mountains lie along the western side of the Elsinore fault zone, while the Perris Block is located along the eastern side of the fault zone. These mountainous regions are underlain by Pre-Cretaceous, metasedimentary and metavolcanic rocks and Cretaceous plutonic rocks of the Southern california Batholith. Tertiary and Quaternary rocks are generally comprised of non-marine sediments consisting of sandstone, mudstones, conglomerates, and occasional volcanic units. A map of the regional geology is presented on the Regional Geologic Map (Figure 2).

Local Geology and Soil Conditions
Based on our review of available geological and geotechnical literature, current field mapping, exploratory trenches and exploratory borings conducted at the site, it is our understanding that the site is primarily underlain by undocumented artificial fill, older alluvial fan deposits, and Banzai Tonalite bedrock. Each unit is described in greater detail below and presented within the exploratory trench and boring logs (Appendix B). The approximate locations of the observed geologic units are depicted on the Geotechnical Map (Plate 1).

Artificial Fill. Undocumented (Afu): During our subsurface exploration, artificial fill (undocumented) was encountered down to depths ranging from approximately 2.0 feet to 5.5 feet. The artificial fill generally consists of silty sand and clayey silt and is various shades of brown, red and black; very fine to medium grained with some coarse grains; coarse and very coarse rock fragments; dry to damp; medium dense/firm; contains some pores; roothairs; desiccated; with traces of concrete pieces.

Topsoil (No Map Symbol): Topsoil was present within portions of the site overlying the older alluvial deposits or bedrock. The topsoil consisted of silty sand which was generally very fine to coarse grained, various shades of red and brown, dry to damp, loose to medium dense, desiccated with some pores and roots. These materials were generally 0.5 foot to 2.0 foot thick where explored.

Alluvium (Oaf): Alluvium is present within drainage courses on the site and consist of silty sand which is generally very fine to coarse grained, various shades of read and brown, dry to damp, loose to medium dense with some rock fragments, pores, and roots. The alluvium where explored is about 2.0 feet to

7.0 feet deep and could be as much aa 10.0 feet deep.

Older Alluvial Fan Deposits (Ooa): Older alluvial fan deposits encountered on the site during our subsurface exploration, were observed to range from the surface approximately 2.0 feet to 6.5 feet deep to as deep as 12 feet. The older alluvial fan deposits generally consist of silty sand and is Project No. GlB-1648-10 4 September 22, 2018
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Packet Pg. 951 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) qdi
~ prox. Site l.ocaJ.L_cw
qdi
GEOLOGIC MAP OF THE RIVERSIDE EAST/SOUTH 1/2 IF SAN BERNARDINO SOUTH

QUADRANGLES, SAN BERNARDINO AND RIVERSIDE COUNTY, CALIFORNIA By Thomas W. Dibble, Jr .. 2003 Edited by John A. Minch Qoa
, Qoa - Older Alluvial Fan deposits
qdi - Bedrock: Tonalite
Foliation Attitude
Geologic Contact
Fault Trace
(Dotted where concealed)
Pro·ect Name TENTATIVE TRACT MAP NO. 37557
FIGURE 2 Pro·ect No. G18-1648-10
REGIONAL GEOLOGIC MAP 1--G_e_ol_./_E_, n ..___-+-- RL_G_/J_P_N _______ ---l Scale NOTTO SCALE
Date SEPTEMBER 2018
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Packet Pg. 952 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

3.3 characterized as being various shades of brown, green, gray, and red; dry; medium to very dense; very fine to medium grained with coarse grains; pinhole pores; roothairs; with oxidation staining. Portions of the upper 1.0 foot to 2.0 foot are weathered.

Bedrock: Bonzal Tonalite (Odi) - Bedrock of the Peninsular Ranges was present at the near surface, but mostly below the topsoil, alluvium and older alluvial fan deposits at depths of about 0.5 feet to 12.0 feet. The bedrock consists of quartz diorite. The bedrock was slightly to moderately weathered; various shades of black, orange, gray, yellow, brown and white; dry to damp; moderately hard to very hard; friable; fine to very coarse grained; with oxidation staining; and manganese staining.

Landslides
Our review of geologic literature did not indicate the presence of landslides on or directly adjacent to the site.

3.4 Groundwater

3.5 Groundwater was not encountered during the subsurface exploration performed for this report. Our review of the california Department of Water Resources, Water Data Library 2018 online database indicates historical depths of groundwater approximately four miles away from the general site area is about 73 feet below the existing ground surface at an elevation of approximately 1,638 above mean sea level (Well ID: Station 335628N1171932W001).

Caving
caving was not encountered in the exploratory trenches. caving may occur within excavations made into the friable portions of the alluvium, older alluvial fan deposits and weathered bedrock.

3.6 Surface Water
Surface water runoff relative to project design is the purview of the project civil engineer and should be designed to be directed away from all structures and walls.

3.7 Faulting
The geologic structure of the Southern california area is mainly dominated by northwest-trending faults associated with the San Andreas system. Faults, such as the Whittier, Elsinore, San Jacinto and San Andreas, are major faults in this system and are known to be active and may produce moderate to strong ground shaking during an earthquake. In addition, the San Andreas, Elsinore and San Jacinto faults are known to have ruptured the ground surface in historic times.

The following table is comprised of a list of the significant faults located within 20 miles of the proposed project site. We have also included the Maximum Earthquake Magnitude predicted for each of these faults.

Project No. GJB-1648-10 6 September 22, 2018
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Packet Pg. 953 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

3.8 3.9
TABLE 1.

Significant Faults in Proximity of the Proiect Site

APPROXIMATE DISTANCE MAXIMUM
ABBREVIATED FAULT NAME {mi} EARTHQUAKE
MAGNITUDE {Mw}
San Jacinto-San Bernardino 5.2 6.7
San Jacinto-San Jacinto Valley 5.6 6.9
San Andreas-San Bernardino 14.9 7.3
San Andreas-Southern 14.9 7.4
Elsinore-Glen Ivy 18.5 6.8
Chino-Central Ave (Elsinore) 19.0 6.7
Cucamonga 19.4 7.0
Source: EQFAULT for Windows Version 3.00b
Active, potentially active, or inactive faults are not known to project through the site. The site does not lie within an Alquist-Priolo Earthquake Fault Hazard Zone as defined by the State of California in the Alquist-Priolo Earthquake Fault Hazard Zoning Act or a Riverside County Fault Zone Map. The possibility of damage to structures or site improvements because of ground rupture is considered negligible because active faults are not known to cross the site.

Seismicity
Secondary effects of seismic shaking resulting from large earthquakes on the major faults in the southern California region, which may affect the site, include soil liquefaction and dynamic settlement.

Liquefaction is a seismic phenomenon in which loose, saturated, granular soil behave similarly to a fluid when subject to high-intensity ground shaking. Liquefaction occurs when three general conditions exist: 1) groundwater within 50 feet of the ground surface 2) low density non-cohesive (granular) soil; and 3) high-intensity ground motion. Studies indicate that saturated, loose to medium dense, near surface cohesionless soil exhibit the highest liquefaction potential, while dry, dense, cohesionless soil and cohesive soil exhibit low to negligible liquefaction potential.

Other secondary seismic effects include shallow ground rupture, seiches, and tsunamis. In general, these secondary effects of seismic shaking are a possibility throughout the Southern California region and are dependent on the distance between the site and causative fault and the onsite geology. A risk assessment of these secondary effects is provided in the following sections.

Settlement Analvsis
The results of our subsurface exploration and laboratory testing indicate the site is underlain by approximately 2 feet to 7 feet to possibly up to 10 feet of potentially compressible and/or hydrocollapsible soil, consisting of artificial fill, undocumented, topsoil, alluvium, weathered older alluvial fan deposits and weathered bedrock. These materials exhibit the potential to settle or hydro-consolidate under the surcharge of proposed fill loads and anticipated future structural loads.

In areas where overexcavation to competent underlying older alluvial fan deposits or bedrock is accomplished, total settlement of about 0.50-inch, and a differential settlement of about 0.25-inch over a distance of about 40 feet could be anticipated.

Project No. GJB-1648-10 7 September 22, 2018
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Packet Pg. 954 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

4.1 5.1

4.0 CONCLUSIONS AND RECOMMENDATIONS
General
Based on the results of our current geotechnical investigation, it is our opinion that the proposed residential development, as indicated on the conceptual grading plan tract map, is feasible from a geotechnical and geologic standpoint, provided that the following recommendations are incorporated into the design criteria and project specifications and implemented during site grading and during construction. When actual grading plans for the site and foundation/structural plans for the proposed development are available, a comprehensive plan review should be performed by LGC. Depending on the results, additional recommendations may be necessary to provide updated geotechnical design parameters for both earthwork and foundations. Grading should be conducted in accordance with local codes, the recommendations within this report, and future plan reviews. It is also our opinion that the proposed construction and grading will not adversely impact the geologic stability of adjoining properties.

The following is a summary of the primary geotechnical factors determined from our geotechnical investigation.
• The site is underlain by undocumented artificial fill, topsoil, alluvium, older alluvial fan deposits and bedrock.
• Landslides are not known to impact the site.
■ Groundwater are not considered a constraint for the proposed development. ■ The potential for liquefaction is considered negligible because of shallow depths to very dense older alluvial fan deposits and hard bedrock.
• Active or potentially active faults are not known to exist on the site. ■ Laboratory test results of the upper soil and bedrock Indicate a very low expansion potential and negligible potential for soluble sulfate effects on normal concrete and chloride effects on reinforcing steel.
• The majority of the site is underlain by approximately 2 feet to 7 feet to as much as 10 feet locally of undocumented artificial fill, topsoil, alluvium, weathered older alluvial fan deposits and weathered bedrock which may be prone to potential intolerable post-grading settlement and/or hydroconsolidation, under the surcharge of the future proposed structural loads and/or fill loads.

These materials should be overexcavated to underlying competent older alluvial fan deposits or bedrock.
• The existing onsite soil from a geotechnical perspective, appear to be suitable material for use as fill, provided those are relatively free from rocks (larger than 12 inches in maximum dimension), construction debris, and organic material. It is anticipated that the onsite soil may be excavated with conventional heavy-duty construction equipment.

5.0 GEOLOGIC CONSIDERATIONS
Slopes
Cut slopes and fill slopes to the proposed slope heights and slope ratios of approximately 2:1 (H:V) or flatter and should be grossly and surficially stable.

5.2 Faulting
Geologic hazards related to fault rupture are not known or not detected during our field exploration and site reconnaissance to be present at the site.

Project No. GJB-1648-10 8 September 22, 2018
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Packet Pg. 955 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

5.3 Groundwater
Adverse effects on the proposed development resulting from groundwater are not anticipated.

5.4 Subsidence
In consideration of the anticipated grading, recommended overexcavations, proposed structures and improvements, and subsurface material types and their conditions, unfavorable ground subsidence is not anticipated. This should be confirmed with additional consolidation testing in the older alluvial fan deposits.

5.5 Landsliding
5 .6
Landslides or surface failures were not observed at or directly adjacent to the site. As a result, the probability of the site being affected by landslides is considered nil.

Ground Rupture
Ground rupture because of active faulting is not likely to occur on site because of the absence of known active fault traces on the site. Cracking because of shaking from distant seismic events is not considered a significant hazard, although it is a possibility at any site.

5.7 Rock Fall

5.8 6.1
The potential for rock fall is considered moderate, due to the close proximity of the mountainside. See referenced report in Appendix A.

Tsunamis and Seiches
Based on the elevation of the site with respect to sea level and its distance from large open bodies of water, the potentials for seiche and/or tsunami is considered to be negligible.

6.0 SEISMIC-DESIGN CONSIOERA TIONS
Ground Motions
The site will probably experience ground shaking from moderate to large size earthquakes during the life of the proposed development. Furthermore, it should be recognized that the Southern California region is an area of high seismic risk, and that it is not considered feasible to make structures totally resistant to seismic-related hazards.

Structures within the site should be designed and constructed to resist the effects of seismic ground motions as provided in the 2016 CBC, Section 1613. The method of design is dependent on the seismic zoning, site characterizations, occupancy category, building configuration, type of structural system, and building height.

The following seismic design parameters, presented in Table 2, were developed based on the CBC 2016 and should be used for the proposed structures. A site coordinate of 33.8066° N, 117.1195° W was used to derive the seismic parameters presented below.

Project No. GlB-1648-10 9 September 2Z 2018
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Packet Pg. 956 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TABLE2
Seismic Design Soil Parameters
SEISMIC DESIGN SOIL PARAMETERS ( 2016 CBC Section 1613) Site Class Definition ASCE 7; Chapter 20 (Table 20.3-1) D Mapped Spectral Response Acceleration Parameter Ss (for 0.2 second) (Figure 1613.5.3.(1) 1.51 Mapped Spectral Response Acceleration Parameter, 51 (for 1.0 second) (Figure 1613.5.3.(2) 0.64 Site Coefficient Fa (short period) [Table 1613.3.3.(1)] 1.0 Site Coefficient Fv (1-second period) [Table 1613.3.3.(2)] 1.5 Adjusted Maximum Considered Earthquake (MCE) Spectral Response Acceleration Parameter 1.51 5Ms (short period) (Eq. 16-37) Adjusted Maximum Considered Earthquake (MCE) Spectral Response Acceleration Parameter 0.96 SM1 (1-second period) (Eq. 16-38) Design Spectral Response Acceleration Parameter, Sos (short period) (Eq. 16-39) 1.00 Design Spectral Response Acceleration Parameter, 501 (1-second period) (Eq. 16-40) 0.64 Mean Peak Ground Acceleration (PGAm) 0.59

6.2 Secondary Seismic Hazards

7.1 Secondary effects of seismic activity normally considered as possible hazards to a site include several types of ground failure, as well as induced flooding. Various general types of ground failures which might occur as a consequence of severe ground shaking of the site include liquefaction, landsliding, ground subsidence, ground lurching, and shallow ground rupture. The probability of occurrence of each type of ground failure depends on the severity of the earthquake, distance from faults, topography, subsoil and groundwater conditions, in addition to other factors. Based on the proposed grading and recommended overexcavation of potentially compressible materials within areas of proposed development, the secondary effects of liquefaction and other seismic activity noted above are considered unlikely at the site.

Seismically induced flooding, which might be considered a potential hazard to a site, normally includes flooding because of a tsunami (seismic sea wave), a seiche (i.e., a wave-like oscillation of the surface of water in an enclosed basin that may be initiated by a strong earthquake) or failure of a major reservoir or retention structure upstream of the site. The site is located several miles inland from the nearest coastline of the Pacific Ocean at an elevation in excess of approximately 1630 feet above msl, the potential for seismically induced flooding because of tsunami inundation is considered nonexistent.

Enclosed bodies of water do not lie adjacent to the site, the potential for seiche induced flooding at the site is considered nonexistent.

7.0 GEOTECHNICAL DESIGN PARAMETERS
Shrinkage/Bulking and Subsidence
Volumetric changes in earth quantities occur when excavated onsite soil are replaced as properly compacted fill. The following table, Table 3, is an estimate of the shrinkage and bulking factors for the various geologic units present onsite. These estimates are based on in-place densities of the various materials and on the estimated average degree of relative compaction that will be achieved during grading.

Project No. GJB-1648-10 September 2.Z 2018
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Packet Pg. 957 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TABLE3
Estimated Shrinkage/Bulking

GEOLOGIC UNIT SHRINKAGE PERCENT
Artificial Fill, Undoctumented 6% to 15%
Alluvium 10% to 15%
Topsoil 10% to 15%
Older Alluvial Fan Deposits (Qoa) 9% to 13%

GEOLOGIC UNIT BULKING PERCENT
Bedrock: Banzai Tonalite 0%TO 10%
Subsidence of the older alluvial fan deposits and bedrock, because of recompaction of exposed soil or bedrock prior to fill placement, and placement of proposed fills, is estimated to be about 0.15 to 0.20 feet.

The above estimates of shrinkage are intended as an aid for project engineers in determining earthwork quantities. However, these estimates should be used with some caution since they are not absolute values. These are preliminary rough estimates which may vary with depth of removal, stripping losses, field conditions at the time of grading, etc. Handling losses, and reduction in volume due to removal of oversized material, are not included in the estimates.

7.2 Excavation Characteristics

7.3 The following excavation characteristics of the various material types at the site have been developed based on LGC's geologic mapping and experience with these materials in the area and are presented in Table 4 below:

TABLE4
Excavation Characteristics
Easy* Moderately**
GEOLOGIC UNIT Difficult Ripping Riooinq
Artificial Fill (Afu) X X
Topsoil X
Alluvium (Qal) X
Alluvial Fan Deposits (Qf) X X
Bedrock: Banzai Tonalite (Qdi) X
Oversized
Material
(>6 inches)
X
X
X
To better determine if rip-ability with conventional equipment is feasible or if alternative excavation methods such as blasting is necessary, we recommend a seismic refraction survey.

Compressible/Collapsible Soil
The results of our laboratory in-situ moisture and density testing indicate that the existing undocumented artificial fill, topsoil, alluvium and weathered portions of the older alluvial fan deposits and bedrock are susceptible to varying degrees of intolerable settlement and/or hydro-consolidation (collapse) when a load is applied, or the soil is saturated. Consequently, these materials should be collectively overexcavated to underlying competent older alluvial fan deposits or bedrock and replaced as engineered compacted fill.

Project No. GJB-1648-10 11 September 2.Z 2018
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Packet Pg. 958 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

8.1 8.2

8.3 8.0 SITE EARTHWORK
General Earthwork and Grading Specifications
Earthwork and grading should be performed in accordance with applicable requirements of the grading code of the County of Riverside and in accordance with the following recommendations prepared by this firm. Grading should also be performed in accordance with the applicable provisions of the attached "Standard Grading Specifications" prepared by LGC (Appendix D), unless specifically revised or amended herein. In case of conflict, the following recommendations shall supersede those included in as part of LGC's General Earthwork and Grading Specifications (Appendix D).

Geotechnical Observations and Testing
Prior to the start of grading, a meeting should be held on the site with the owner or his representative, developer, grading contractor, civil engineer and geotechnical consultant to discuss the work schedule and geotechnical aspects of the grading. Rough grading, which includes clearing, overexcavation, scarification/processing and fill placement, should be accomplished under the full-time observation and testing of the geotechnical consultant. Fills should not be placed without prior approval from the geotechnical consultant.

A representative of the project geotechnical consultant should also be present onsite on a full-time basis during grading operations to document proper placement and compaction of fills, as well as to document excavations and compliance with the other recommendations presented herein.

Clearing and Grubbing
Weeds/shrubs, grasses, boulders and trees in areas to be graded should be stripped and hauled offsite.

Trees to be removed should be grubbed so that the stumps and major-root systems are removed and the organic materials hauled offsite. During site grading, roots, tree branches and other deleterious materials missed during clearing and grubbing operations should be removed from fill sources prior to placement.

The project geotechnical consultant or his qualified representative should be notified at the appropriate times to provide observation and testing services during clearing and grubbing operations to observe and document compliance with the above recommendations. In addition, buried structures, unusual or adverse soil conditions encountered that are not described or anticipated herein should be brought to the immediate attention of the geotechnical consultant. The existing drainage courses must be cleared of organics, debris, and sediment and widened to accommodate compaction equipment.

8.4 Private Sewage System Abandonment

8.5 Private sewage systems and/or other subsurface structures that may be encountered should be located, removed and/or properly abandoned. Abandonment and/or removal of septic systems that may exist should be in accordance with local codes. Seepage pits, if abandoned in-place, should be pumped clean, backfilled with gravel or clean sand jetted into place, and then capped with 2 feet or more of at least a 2-sack slurry for a minimum distance of 2 feet outside the edge of the seepage pit.

The top of the slurry cap should be at least 10 feet below proposed grade.

Water-Well Capping
Unknown water wells that are encountered within the site, which are to be abandoned, should be abandoned and capped under permit by the appropriate governmental agency from Riverside County.

In addition, a minimum 10-foot thick compacted fill blanket, below proposed grade, should be placed above the previously or newly-capped water wells.

Project No. GlB-1648-10 12 September 22, 2018
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Packet Pg. 959 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

8.6 Overexcavation and Ground Preparation
The site is underlain by approximately 2 feet to 7 feet and possibly as much as 10 feet of compressible materials. Existing undocumented artificial fill, topsoil, alluvium and weathered portions of the older alluvial fan deposits and bedrock are considered unsuitable for support of proposed fills, structures, and/or improvements, and should be overexcavated to expose underlying competent older alluvial fan deposits or bedrock. Where overexcavation and grading do not provide 5 feet or more of fill below finished pad-grade within areas for proposed structures, retaining walls, or fence walls, the area should be overexcavated to 5 feet or more below proposed grade or 2 feet or more below the bottom of footings for structures or walls, whichever is deeper. Actual depths of overexcavation should be evaluated upon review of final grading and foundation plans as well as during grading on the basis of observations and testing during grading by the project geotechnical consultant.

Prior to placing engineered fill, the exposed bottom surfaces in each overexcavated area should first be scarified to a depth of approximately 6 inches, watered or air-dried as necessary to achieve a uniform water content near optimum or slightly higher, and then compacted in place to a relative compaction of 90 percent or more (based on American Standard of Testing and Materials [ASTM] Test Method D1557).

The estimated locations, extent, and approximate depths for overexcavation of unsuitable materials are indicated on the enclosed Geotechnical Map (Plate 1). The geotechnical consultant should be provided with appropriate survey staking during grading to document that depths and/or locations of recommended overexcavation are adequate.

Sidewalls for overexcavations greater than 4 feet in height should not be steeper than 1: 1 horizontal to vertical (h:v) and should be periodically slope-boarded during excavation to remove loose surficial debris and facilitate geologic mapping. Flatter excavations may be necessary for stability.

The grading contractor will need to consider appropriate measures necessary to excavate existing improvements adjacent to the site without endangering those because of caving or sloughing.

8.7 Subdrains

8.8 Following overexcavation of the topsoil, alluvium and weathered portions of the older alluvial fan deposits or bedrock, in the existing drainage course of the site a subdrain should be installed where the ultimate depth of fill below proposed grade exceeds approximately 10 feet. Tentative locations of the recommended subdrains should be evaluated once actual grading plans are developed. Actual locations should also be determined by the geotechnical consultant once conditions are exposed during grading.

The subdrains will help mitigate potential buildup of hydrostatic pressures below compacted fill due to infiltration of sub-surface and surface waters.

Fill Suitability
Soil materials excavated during on-site grading are generally considered suitable for use as compacted fill provided that such soil does not contain significant amounts of trash, vegetation, organic material, construction debris, and oversize material.

8.9 Oversized Material
Oversized material that may be encountered during grading, greater than 6 inches, should be reduced in size or removed from the site

8.10 Cut/Fill Transitions and Differential Fill Thicknesses To mitigate distress to structures and walls related to the detrimental effect of differential settlement, the cut portions should be eliminated from cut/fill transition areas in order that the entire structure or wall be founded on a approved uniform material. This should be accomplished by overexcavating the "cut" portions and shallow fill portions 5 feet or more below proposed pad grade or 2 feet below proposed Project No. GJB-1648-10 13 September 22, 2018
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Packet Pg. 960 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) footings for structures or walls, whichever is deeper and replacing the excavated materials as properly compacted fill. Recommended depths of overexcavation are provided in the following table:

DEPTH OF FILL {''fill" portion} DEPTH OF OVEREXCAVA 77ON { "cutn portion} Up to 15 feet 5 feet (minimum)
Greater than 15 feet One-third the maximum thickness of fill placed on the "fill" portion (12 feet maximum)

8.11 Benching
Where compacted fills are to be placed on natural slope surfaces inclining at 5:1 (h:v) or greater, the ground should be excavated to create a series of level benches, which have at least a minimum height of 4 feet, excavated into competent bedrock or existing compacted engineered materials. Typical benching details are described in the attached LGC "Standard Grading Specifications" (Appendix D).

8.12 Fill Placement
Fills should be placed in lifts not greater than 6 inches in uncompacted thickness, watered or air-dried as necessary to achieve a uniform water content of at least optimum moisture content, and then compacted in place to relative compaction of 90 percent or more. Fills should be maintained in a relatively level condition. The laboratory maximum dry density and optimum moisture content for each change in soil type should be determined in accordance with ASTM Test Method D1557.

8.13 Inclement Weather

9.1 Inclement weather may cause rapid erosion during mass grading and/or construction. Proper erosion and drainage control measures should be in-place during periods of inclement weather in accordance with Riverside County and California State requirements.

9.0 SLOPE CONSTRUCTION
Slope Stability
Cut slopes and fill slopes at the proposed heights at slope ratios of approximately 2: 1 (H:V) or flatter and should be grossly and surficially stable.

9.2 Fill Slopes

9.3 Following overexcavation of unsuitable materials, fill slopes and fill over cut slopes should be initiated on a minimum 15 feet wide key excavated into competent older alluvial fan deposits or bedrock if the ground gradient is steeper than 5:1 (H:V) as approved by LGC. The bottom of the fill keys should be tilted at 2 percent back into the slope.

Cut Slopes
Proposed cut slopes may expose low-density, dry and/or cohesionless soil or bedrock with out-of-slope planner features, which will likely require stabilization by overexcavation and replacement with compacted fill.

Project No. GlB-1648-10 14 September 22, 2018
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Packet Pg. 961 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

9.4 Temporary Excavations
Temporary excavations varying up to a height of approximately 2 feet to 10 feet below existing grades will be necessary to accommodate the recommended overexcavation of the unsuitable soil. Based on the physical properties of the onsite soil, temporary excavations exceeding 4 feet in height should be cut back at a ratio of 1:1 (h:v) or flatter, for the duration of the overexcavation and recompaction of unsuitable soil material. Temporary slopes excavated at the above slope configurations are expected to remain stable during grading operations. However, temporary excavations should be observed by a representative of the project geotechnical consultant for any evidence of potential instability.

Depending on the results of these observations, revised slope configurations may be necessary.

Other factors which should be considered with respect to the stability of the temporary slopes include construction traffic and storage of materials on or near the tops of the slopes, construction scheduling, presence of nearby walls or structures on adjacent properties, and weather conditions at the time of construction. Applicable requirements of the california Construction and General Industry Safety Orders, the Occupational Safety and Health Act of 1970, and the Construction Safety Act should also be followed.

10.0 POST-GRADING CONSIDERATIONS

10.1 Control of Surface Water and Drainage Control
Positive-drainage devices such as sloping sidewalks, graded-swales, and/or area drains, should be provided to collect and direct water away from the structure and slopes. Neither rain nor excess irrigation water should be allowed to collect or pond against building foundations. Drainage should be directed to adjacent driveways, adjacent streets or storm-drain faculties and maintained at all times.

The site is in a semi-arid climate area, from a geotechnical standpoint, thus the ground surface adjacent to the structures should be sloped at a gradient of at least 2 percent for a distance of at least 10 feet. Each graded lot should be further maintained by a swale or drainage path at a gradient of at least 1 percent. Where necessary, drainage paths may be shortened by use of area drains and collector pipes. Planters with open bottoms adjacent to buildings should be avoided. Over watering must be avoided.

10.2 Utility Trenches
Utility-trench backfill within roadways, utility easements, under walls, sidewalks, driveways, floor slabs and any other structures or improvements should be mechanical compacted. The onsite soil should generally be suitable as trench backfill provided those are screened of rocks and other material over 3 inches in diameter and organic matter. Trench backfill should be compacted in uniform lifts (generally not exceeding 6 inches to 8 inches in uncompacted thickness) by mechanical means to at least 90 percent relative density (per ASTM Test Method D1557). Density testing, along with probing, should be performed by the project geotechnical consultant or his representative, to document proper compaction.

If trenches are shallow, the use of conventional equipment may result in damage to the utilities. Clean sand, having a sand equivalent (SE) of 30 or greater should be used to bed and shade the utilities.

Sand backfill should be densified. The densification may be accomplished by jetting or flooding and then tamping to ensure adequate compaction. A representative from LGC should observe, probe, and test the backfill to verify compliance with the project specifications.

Utility-trench sidewalls deeper than 4 feet should be laid back at a ratio of 1:1 (h:v) or flatter or braced. A trench box may be used in lieu of shoring. If shoring is anticipated, LGC should be contacted to provide design parameters.

Project No. GJB-1648-10 15 September 22, 2018
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Packet Pg. 962 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) To avoid point-loads and subsequent distress to clay, cement or plastic pipe, imported sand bedding should be placed 1-foot or more above pipe in areas where excavated trench materials contain significant cobbles. Sand-bedding materials should be compacted and tested prior to placement of backfill.

Where utility trenches are proposed parallel to building footings (interior and/or exterior trenches), the bottom of the trench should not be located within a 1:1 (h:v) plane projected downward from the outside bottom edge of the adjacent footing .
.1.1.0 PRELIMINARY FOUNDATION DESIGN RECOMMENDATIONS
.1..1..1 General
Provided that site grading is performed in accordance with the recommendations of this report, conventional shallow foundations are considered feasible for support of the proposed residential structures. Tentative foundation recommendations are provided herein. However, these recommendations may require modification depending on existing as-graded conditions within the building sites upon completion of grading .
.1.1.2 Allowable-Bearing Values
An allowable-bearing value of 2,500 pounds per square foot (psf) may be used for 12-inch wide or greater continuous footings or 24-inch square pad footings, founded completely within in competent compacted fill at a depth of 12-inches or more below the lowest adjacent compacted pad grade. This value may be increased by 20 percent for each additional foot of width and depth, to a value not greater than 3,500 psf. The recommended allowable-bearing value includes both dead and live loads.

The bearing capacities should be re-evaluated when loads and footing sizes have been finalized . .1..1..3 Settlement
Based on the general settlement characteristics of compacted fill, the previous overexcavation recommendations in this report and anticipated loading, it is estimated the site would be subjected to a total settlement about 0.50-inch, and a differential settlement of about 0.25-inch over a distance of about 30 feet. It is anticipated that the majority of the settlement will occur during construction or shortly thereafter as building loads are applied.

The above settlement estimates are based on the assumption that a actual rough grading plan will be submitted to LGC for review, that additional soil tests may be deemed necessary, that revised settlement prediction may result and that grading will be performed in accordance with the final grading recommendations presented in a supplemental report and that the project geotechnical consultant will observe and/or test the soil conditions in the footing trenches.

11.4 Lateral Resistance
Lateral forces on footings should be resisted by passive earth resistance and friction at the bottom of the footing. Foundations should be designed for a passive earth pressure of 330 psf per foot of depth to a maximum value of 3,300 psf and a coefficient of friction of 0.40. The passive earth pressure incorporates a minimum factor of safety of 1.5. The above values may be increased by 1/3 when designing for short-duration wind or seismic forces.

The above values are based on footings placed directly against compacted fill. In the case where footing sides are formed, backfill placed against the footings should be compacted to 90 percent or more of maximum dry density as determined by ASTM D1557.

Project No. GJB-1648-10 16 September 2~ 2018
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Packet Pg. 963 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

11.5 Footing Setbacks from Descending Slopes
Where structures are proposed near the tops of descending graded or natural slopes, the footing setbacks from the slope face should conform to the 2016 CBC, Figure 1808.7.1. The required setback is H/3 ( one-third the slope height) measured along a horizontal line projected from the lower outside face of the footing to the slope face. The footing setbacks should be 5 feet or more where the slope height is 15 feet or less and vary up to 40 feet where the slope height exceeds 15 feet.

11.6 Building Clearances from Ascending Slopes
Building setbacks from ascending graded or natural slopes should conform with the 2016 CBC, Figure 1808.7.1, which requires a building clearance of H/2 (one-half the slope height) varying from 5 to 15 feet. The building clearance is measured along a horizontal line projected from the toe of the slope to the face of the building. A retaining wall may be constructed at the base of the slope to achieve the required building clearance.

11.7 Footing Observations
Footing trenches should be observed by the project geotechnical consultant to document that they have been excavated into competent bearing compacted fill soil. The foundation trenches should be observed prior to the placement of forms, reinforcement or concrete. The trenches should be trimmed neat, level and square. Loose, sloughed or moisture-softened soil should be removed prior to concrete placement.

Excavated materials from footing excavations should not be placed in slab-on-ground areas unless the soil are compacted to 90 percent or more of maximum dry density as determined by ASTM D1557.

11.8 Expansive Soil Considerations
Results of preliminary laboratory tests by LGC indicate onsite soil materials exhibit expansion potentials of VERY LOW in accordance with 2016 CBC, Chapter 18. Given that generally the expansion index of the onsite soil is VERY LOW, recommendations to mitigate the effects of expansive soil may not be required. However, expansive soil conditions of the near surface finish grade soil should be evaluated and tested for individual building pads on a pad-by-pad basis during and at the completion of rough grading to verify and/or modify the anticipated conditions. The design and construction details presented herein are intended to provide recommendations for the levels of expansion potential which may be evident at the completion of rough grading. Furthermore, it should be noted that additional slab thickness, footing sizes and/or reinforcement more stringent than the recommendations that follow should be provided as recommended by the project structural engineer.

11.9 Footing/Floor Slabs - Very Low Expansion Potential The following are our recommendations where foundation soil exhibit VERY LOW expansion potential as classified in accordance with 2016 CBC. For this condition, it is recommended that footings and floors be constructed and reinforced in accordance with the following criteria. However, additional slab thickness, footing sizes and/or reinforcement may be required by the project architect or structural engineer.
• Footings
- Exterior continuous footings should be founded entirely in compacted engineered fill below the lowest adjacent final exterior pad grade at minimum depths of 12 inches and 18 inches deep for one-story and for two-story construction, respectively. Interior continuous footings may be founded at a depth of 12 inches or greater for one-story and two-story structures.

Continuous footings should have a minimum width of 12 inches for one-story and 15 inches for two-story structures.

Project No. GJB-1648-10 17 September 22✓ 2018
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Packet Pg. 964 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) - Continuous footings should be reinforced with a minimum of two (2) No. 4 bars, one near the top and one near the bottom.
- Interior isolated pad footings should be 24 inches or more square and founded at a depth of 12 inches or more for one-story and two-story structures and 18-inches or more for threestory and four-story structures, below the lowest adjacent grade. Footings should be reinforced in accordance with the structural engineer's recommendation. - Exterior pad footings should be 24 inches or more square and founded at a depth of 18 inches or more below the lowest adjacent grade. Isolated exterior footings should be connected with grade beams. Footings should be reinforced in accordance with the structural engineer's recommendations.
• Floor Slabs
- Concrete floor slabs should be 4 inches or more thick and reinforced with No. 3 bars spaced 24 inches or less on-centers, both ways. Slab reinforcement should be supported on concrete chairs or bricks so that the desired placement is near mid-depth. - Concrete floors should be underlain with a moisture-vapor retarder consisting of 15-mil thick vapor barrier. Laps within the membrane should be sealed and overlapped 12 inches. Two inches or more of clean sand should be placed above and below the membrane to promote uniform curing of the concrete.
- Prior to placing concrete, subgrade soil should be thoroughly moistened to approximately 100% of optimum water content to promote uniform curing of the concrete and reduce the development of shrinkage cracks. The moisture content should penetrate to a minimum depth of 12 inches.

12.0 RETAINING WALLS

12.1 Lateral Earth Pressures and Retaining Wall Design Parameters Conventional footings for retaining walls founded entirely in properly compacted fill should be embedded at least 18 inches below lowest adjacent grade. At this depth, an allowable uniform bearing capacity of 2,500 psf may be assumed for retaining walls founded in competent compacted fill.

The following are lateral earth pressures are recommended for retaining walls up to 10 feet high that may be proposed. The recommended lateral pressures for approved on-site or import soil (with an expansion index of 20 or less and an angle of internal friction (phi) of at least 36 degrees) for level or sloping backfill are presented in Table 5. Onsite soil should be screened of rocks and other material over 3 inches in diameter.

Level
CONDITIONS Backfill
{upto6
feet}
Active 35
At-Rest 55
Passive 330
TABLES
Lateral Earth Pressures
EQUIVALENT FLUID WEIGHT focf}
Level Backfill 2:1 Backfill 2:1 Backfill
Dynamic Ascending Ascending-Dynamic
{>6 feet to 10 {upto6 {>6 feet to 10 feet}
feet} feet}
55 50 70
75 80 100
330 190 190
The friction coefficient of 0.40 may be used at the concrete footing and soil interface for sliding resistance. Wall footings should be designed in accordance with structural considerations.

Project No. GJB-1648-10 18 September 2,Z 2018
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Packet Pg. 965 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Embedded structural walls should be designed to resist the lateral earth pressures. Restrained structural walls should be designed for at rest conditions. The magnitude of those pressures depends on the amount of deformation that the wall can yield under load. If the wall can yield enough to mobilize the full shear strength of the soil, it can be designed for "active" pressure. If the wall cannot yield under the applied load, the shear strength of the retained soil cannot be mobilized and the earth pressure will be higher. Such walls should be designed for "at-rest" conditions. If a structure moves toward the soil, the resulting resistance developed by the soil is the "passive" resistance.

The equivalent fluid pressure values assume free-draining conditions and a soil expansion index of 20 or less. If conditions other than those assumed above are anticipated, revised equivalent fluid pressure values should be provided on an individual-case basis by the geotechnical engineer.

Surcharge loading effects from the adjacent structures should be evaluated by the geotechnical and structural engineers.

12.2 Footing Embedments
The base of retaining wall footings constructed on level ground should be founded at a depth of 18 inches or more below the lowest adjacent final grade. Where retaining walls are proposed on or within 15 feet from the top of an adjacent descending fill slopes, the footings should be deepened such that a horizontal clearance of H/3 or more ( one-third the slope height) is maintained between the outside bottom edges of the footings and the face of the slope but not to exceed 15 feet nor be less than 5 feet. The above recommended footing setbacks are preliminary and may be revised based on site specific soil conditions. Footing or pier excavations should be observed by the project geotechnical representative to document that the footing trenches have been excavated into competent bearing soil and to the embedments recommended above. These observations should be performed prior to placing forms or reinforcing steel.

12.3 Drainage
All retaining wall structures should be provided with appropriate wall drainage and appropriately waterproofed. Outlet pipes should be sloped to drain to a suitable outlet. It should be noted that that recommended wall drains does not provide protection against seepage through the face of the wall and/or efflorescence. If such seepage or efflorescence is undesirable, retaining walls should be waterproofed to reduce this potential.

Weep holes or open vertical masonry joints should be provided in retaining walls 3 feet or less in height to reduce the likelihood of entrapment of water in the backfill. Weep holes, if used, should be 3 inches or more in diameter and provided at intervals of 6 feet or less along the wall. Open vertical masonry joints, if used, should be provided at 32-inch or less intervals. A continuous gravel fill, 12 inches by 12 inches, should be placed behind the weep holes or open masonry joints. The gravel should be wrapped in filter fabric to reduce infiltration of fines and subsequent clogging of the gravel. Filter fabric may consist of Mirafi 140N or equivalent.

In lieu of weep holes or open joints, for retaining walls less than 3 feet, a perforated pipe and gravel subdrain may be used. Perforated pipe should consist of 4-inch or more diameter PVC Schedule 40 or ABS SDR-35, with the perforations laid down. The pipe should be embedded in 1.5 cubic feet per foot of 0.75 or 1.5-inch open graded gravel wrapped in Mirafi 140N filter fabric.

Retaining walls greater than 3 feet high should be provided with a continuous backdrain for the mean full height of the wall. This drain could consist of geosynthetic drainage composite, such as Miradrain 6000 or equivalent, or a permeable drain material, placed against the entire backside of the wall. If a permeable drain material is used, the backdrain should be 1 or more feet thick. Caltrans Class II permeable material or open graded gravel or crushed stone may be used as permeable drain material. If gravel or crushed stone is used, it should have less than 5 percent material passing the No. 200 sieve. The drain should be Project No. GJB-1648-10 19 September 2Z 2018
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Packet Pg. 966 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) separated from the backfill with a geofabric. The upper 1-foot of the backdrain should be covered with compacted fill. A drainage pipe consisting of 4-inch diameter perforated pipe (described above) surrounded by 1 cubic foot per foot of gravel or crushed rock wrapped in a filter fabric should be provided along the back of the wall. The pipe should be placed with perforations down, sloped at 2 percent or more to discharge towards an appropriate outlet through a solid pipe. The pipe should outlet away from structures and slopes. The outside portions of retaining walls supporting backfill should be coated with an approved waterproofing compound to inhibit infiltration of moisture through the walls.

12.4 Temporary Excavations
Retaining walls should be constructed and backfilled as soon as possible after backcuts are excavated.

Prolonged exposure of backcut slopes may result in localized slope instability. To facilitate retaining wall construction, the lower 4 feet of temporary slopes may be cut vertical and the upper portions exceeding a height of 4 feet should be cut back at a gradient of 1:1 (h:v) or flatter for the duration of construction.

Temporary slopes should be observed by the project geotechnical consultant for evidence of potential instability. Depending on the results of these observations, flatter slopes may be necessary. The potential effects of various parameters such as weather, heavy equipment travel, storage near the tops of the temporary excavations and construction scheduling should also be considered in the stability of temporary slopes. Water should not be permitted to drain towards the slope. Surcharges from equipment, spoil piles, etc., should not be allowed within 10 feet of the top of the slope.

All excavations should be made in accordance with car;OSHA. Excavation safety is the sole responsibility of the contractor.

12.5 Retaining Wall Backfill
The retaining wall backfill soil (with an expansion index of 20 or less and an angle of internal friction of at least 36 degree) should be placed in 6 to 8 inch loose lifts, moisture-conditioned or air-dried as necessary to achieve near optimum water conditions, and compacted to at least 90 percent relative density (based on ASTM Test Methods D2922 and D3017).

13.0 MASONRY GARDEN WALLS

13.1 Construction on Level Ground
Where masonry screen walls or garden walls are proposed on level ground and 5 feet or more from the tops of descending slopes, the footings for these walls may be founded at a depth of 18 inches or more below the lowest adjacent final grade. These footings should also be reinforced with two No. 4 bars, one top and one bottom and in accordance with the structural engineer's recommendations.

13.2 Construction Joints
In order to mitigate the potential for unsightly cracking related to the effects of differential settlement, positive separations ( construction joints) should be provided in the walls at horizontal intervals of approximately 25 feet and at each corner. The separations should be provided in the blocks only and not extend through the footings. The footings should be placed monolithically with continuous rebar to serve as effective "grade beams" along the full lengths of the walls.

Project No. GJB-1648-10 20 September 22, 2018
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Packet Pg. 967 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) :14.0 CONCRETE FLA TWORK
:14.:l Nonstructural Concrete Flatwork
Concrete flatwork (such as walkways, driveways, patios, bicycle trails, etc.) has a high potential for cracking because of changes in soil volume related to soil-moisture fluctuations. To reduce the potential for excessive cracking and lifting, concrete should be designed in accordance with the minimum guidelines outlined in Table 6. These guidelines will reduce the potential for irregular cracking and promote cracking along construction joints, but will not eliminate all cracking or lifting. Thickening the concrete and/or adding additional reinforcement will further reduce cosmetic distress.

TABLE6
Mini mun Recommendations for Nonstructural Concrete Flatwork Over Ve,y Low Expansive Soil
Private Private Drives Patios/ City Sidewalk
Sidewalks Entryways Curb and Gutters
Minimum 4 (nominal) 4(full) 4 (full) City/ Agency
Thickness {in.) Standard
Presa tu ration Presoak to 12 inches Presoak to 12 inches Presoak to 12 inches City/Agency Standard
Reinforcement No. 3 at 24 inches on No. 3 at 24 inches on City/ Agency - centers centers Standard Thickened 8" X 8" 8" X 8" City/ Agency
Ed11e - Standard
Saw cut or deep open Saw cut or deep open Saw cut or deep open tool Crack Control tool joint to a tool joint to a joint to a minimum of 1/3 City/Agency minimum of 1/3 the minimum of 1/3 the Standard
concrete thickness concrete thickness the concrete thickness Maximum 5 feet 10 feet or quarter cut 6 feet City/ Agency Joint SDacin11 whichever is closer Standard
:14.2 Joint Spacing
To reduce the potential for unsightly cracking, concrete sidewalks and patio type slabs should be provided with construction or expansion joints every 6 feet or less. Concrete driveway slabs should be provided with construction or expansion joints every 10 feet or less, with an aspect ratio of 1.2, to provide rectangular shaped joint patterns.
:14.3 Subqrade Preparation
As a further measure to reduce cracking of concrete flatwork, the upper 12 inches of subgrade soil below concrete-flatwork areas should first be compacted to a relative density of 90 percent of more and then thoroughly wetted to achieve a moisture content that is equal to or slightly greater than optimum moisture content. This moisture should extend to a depth of 12 inches or more below subgrade and maintained in the soil during placement of concrete. Pre-watering of the subgrade will promote uniform curing of the concrete and reduce the potential for the development of shrinkage cracks. A representative of the project geotechnical consultant should observe and document the density and moisture content of subgrade soil and depth of moisture penetration prior to placing concrete.

Project No. GlB-1648-10 21 September 2,Z 2018
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Packet Pg. 968 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

15.0 PLANTERS
Area drains should be extended into planters that are located within 5 feet of building walls, foundations, retaining walls and masonry garden walls to reduce excessive infiltration of water into the underlying foundation soil. The surface of the ground in these areas should be sloped at a gradient of 2 percent or more away from the walls and foundations. Drip-irrigation systems are also recommended to reduce overwatering and subsequent saturation of the adjacent foundation soil.

16.0 SOIL CORROSIVITY

16.1 Corrosivity to Concrete and Metal
The National Association of Corrosion Engineers (NACE) defines corrosion as "a deterioration of a substance or its properties because of a reaction with its environment". From a geotechnical viewpoint, the "environment" is the prevailing foundation soil and the "substances" are the reinforced concrete foundations or various buried metallic elements such as rebar, piles, pipes, etc., which are in direct contact with or within close vicinity of the foundation soil.

In general, soil environments that are detrimental to concrete have high concentrations of soluble sulfates. ACI 318R-05, Table 4.3.1 provides specific guidelines for the concrete mix design based on different amount of soluble sulfate content. The minimum amount of chloride ions in the soil environment that are corrosive to steel, either in the form of reinforcement protected by concrete cover, or plain steel substructures such as steel pipes or piles, is 500 ppm per California Test 532 and ACI 318R-05, Table 4.4.1.

The corrosion potential of the onsite materials was evaluated for its effect on steel and concrete. The corrosion potential was evaluated using the results of laboratory tests on representative samples obtained during our field exploration. Laboratory testing was performed to evaluate pH, minimum electrical resistivity and chloride and soluble sulfate content. Based on testing performed during this investigation within the project site, the onsite soil are classified as having a negligible sulfate exposure condition in accordance with ACI 318R-05, Table 4.3.1, and negligible chloride exposure condition in accordance with ACI 318R-05, Table 4.4.1. Based on laboratory testing of on-site soil it is also our opinion that onsite soil should be considered highly corrosive to buried metals due to the low resistivity.

Metal piping should be corrosion-protected or consideration should be given to using plastic piping instead of metal or plastic sleeving around the metal pipe.

Despite the minimum recommendation above, LGC is not a corrosion-engineering firm. Therefore, we recommend that you consult with a competent corrosion engineer and conduct additional testing (if required) to evaluate the actual corrosion potential of the site and to provide recommendations to reduce the corrosion potential with respect to the proposed improvements. The recommendations of the corrosion engineer may supersede the above requirements.

These recommendations are based on the current and previous samples of the subsurface soil or bedrock. The initiation of grading at the site could blend various soil types and import soil may be used locally. These changes made to the foundation soil could alter sulfate-content levels. Accordingly, it is recommended that additional testing be performed at the completion of grading.

17.0 PLAN REVIEWS AND CONSTRUCTION SERVICES
This report is a preliminary geotechnical investigation prepared for the exclusive use of Mr. Shizao Zheng to assist the project engineer and architect in the design of the proposed development. It is recommended that LGC be engaged to review the actual grading plans, foundation plans and final design drawings and specifications prior to construction. This is to document that the recommendations contained in this report have Project No. GlB-1648-10 22 September 22, 2018
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Packet Pg. 969 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) been properly interpreted and/or are incorporated into the project specifications. LGC's review of such plans and those that might result from the recommended reviews may indicate that additional subsurface exploration, laboratory testing and analysis should be performed to address areas of concern. If LGC is not accorded the opportunity to review those documents, LGC cannot take responsibility for misinterpretation of our recommendations.

We recommend that LGC be retained to provide geotechnical engineering services during both the rough grading and construction phases of the work. This is to document compliance with the design, specifications or recommendations and to allow design changes in the event that subsurface conditions differ from those anticipated prior to start of construction.

If the project plans change significantly (e.g., building loads or type of structures or grading), LGC should be retained to review our original design recommendations and applicability to the revised construction. If conditions are encountered during construction that appear to be different than those indicated in this report, this office should be notified immediately. Design and construction revisions may be required.

18.0 LIMITATIONS
Our services were performed using the degree of care and skill ordinarily exercised, under similar circumstances, by engineers and geologists practicing in this or similar localities. The professional opinions contained herein were derived in accordance with current standards of practice for preliminary reports. Other warranties, expressed or implied, are not made or implied as to the conclusions and professional advice included in this report. The soil samples taken and submitted for laboratory testing, the observations made and the in-situ field testing performed are believed representative of the entire project; however, soil and geologic conditions can vary in characteristics between excavations, both laterally and vertically and may be different than our preliminary findings. If this occurs, the changed conditions must be evaluated by the project geotechnical engineer and engineering geologist and design adjustments may be required recommended.

This report is issued with the understanding that it is the responsibility of the owner, or of his/her representative, to ensure that the information and recommendations contained herein are brought to the attention of the project engineers and incorporated into the plans, and that necessary steps are taken to assure that the contractor and/or subcontractor properly implements the recommendations in the field during construction. The contractor and/or subcontractor should notify the owner if they consider any of the recommendations presented herein to be unsafe.

The conclusions and opinions contained in this report are based on the results of our scope of work and represent our professional judgment. The findings, conclusions and recommendations presented in this report are to be considered preliminary only and subject to confirmation by LGC during the construction process.

Without this confirmation, this report is to be considered incomplete; and LGC will not assume any responsibility for its use.

The conclusions and opinions contained in this report are valid up to a period of 2 years from the date of this report. Changes in the conditions of a property can and do occur with the passage of time, whether those be because of natural processes or the works of man on this or adjacent properties. In addition, changes in applicable or appropriate codes or standards may occur, whether those result from legislation or the broadening of knowledge. Accordingly, the findings of this report may be invalidated wholly or partially by changes outside LGC's control. Therefore, pending such changes made or if the scope of this project changes, an update of this report should be completed.

This report was not prepared for use by parties or projects other than those named or designed above and is otherwise considered insufficient for other parties or other purposes.

Project No. GJB-1648-10 23 September 2Z 2018
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Packet Pg. 970 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

APPENDIX A

REFERENCES AND AERIAL PHOTOGRAPHS
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Packet Pg. 971 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

APPENDIX A
References Reviewed
Blake, T.F., 1998, Maps of Known Active Fault Near-Source Zones in California and Adjacent Portions of Nevada, Prepared by California Division of Mines and Geology.

California Department of Water Resources, Water Data Library, Groundwater Levels for Station 335628N1171932W001, accessed September 14, 2018.

California Division of Mines and Geology, 2000, "Digital Images of Official Maps of Alquist-Priolo Earthquake Fault Zones of California, Southern Region", CD 2000-003.

Dibble, Thomas W., 2003, Geologic Map of The Riverside East/South ½ of San Bernardino South Quadrangles, San Bernardino and Riverside County, California.

Greensfelder, R.W., 1974, Maximum Credible Rock Accelerations from Earthquakes in California, CDMG, MS-23.

EQFAULT, Seismic Hazard Analysis, (33.9582, -117.2955), accessed September 17, 2018.

Hart, Earl W., and William, A. Bryant, 1997, Fault-Rupture Hazard Zones in California, Alquist-Priolo Earthquake Fault Zoning Act with Index to Earthquake Fault Zones Map, Special Publication 42, Revised 1997, Supplements 1 and 2 added 1999.

Hayes, Walter W., 1980, Procedures for Estimating Earthquake Engineering, edited by R.W. Weigel.

Riverside County Open Data, http://data-countyofriverside.opendata.arcgis.com, Natural Hazards, Faults, accessed June 14, 2018.

Riverside County Open Data, http://data-countyofriverside.opendata.arcgis.com, Natural Hazards, Fault Zones, accessed June 14, 2018.

Riverside County Open Data, http://data-countyofriverside.opendata.arcgis.com, Natural Hazards, Liquefaction, accessed June 14, 2018.

Sikand Engineering, Conceptual Grading Plan Tract No. 37557, Scale 1" = 80', Sheet 2 of 2. Dated June 13, 2018.

Sikand Engineering, Preliminary Grading Plan Tract No. 37557, Scale 1" = 80', Sheet 2 of 2. Dated June 13, 2018.

Soil Exploration Company, Inc., Rockfall Potential, Tentative Tract Map 33626, Amended Map No. 1 City of Moreno Valley, California plot dated 2/19/2007.

Southern California Earthquake Center, University of Southern California, Recommended Procedures for Implementation of DMG Special Publication 117, Guidelines For Analyzing and Mitigating Liquefaction Hazards in California, March 1999.

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Packet Pg. 972 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Aerial Photographs Reviewed

SOURCE FUGHTDATE
Google Earth Pro. 2/2018
Gooale Earth Pro. 3/2017
Gooale Earth Pro. 10/2016
Gooqle Earth Pro. 2/2016
Google Earth Pro. 4/2014
Gooale Earth Pro. 11/2013
Gooqle Earth Pro. 11/2012
Gooale Earth Pro. 6/2012
Gooale Earth Pro. 3/2011
Gooqle Earth Pro. 11/2009
Google Earth Pro. 6/2009
Gooale Earth Pro. 6/2008
Gooqle Earth Pro. 12/2006
Google Earth Pro. 8/2006
Gooale Earth Pro. 1/2006
Gooale Earth Pro. 12/2005
Google Earth Pro. 10/2005
Gooale Earth Pro. 12/2004
Gooale Earth Pro. 1/2004
Google Earth Pro. 12/2003
Google Earth Pro. 11/2003
Gooale Earth Pro. 12/2002
Google Earth Pro. 6/2002
Google Earth Pro. 6/1994
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Packet Pg. 973 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

APPENDIXB

EXPLORATORY TRENCH LOGS
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Packet Pg. 974 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Project Name: SIKAND - MORENO VALLEY Logged by: AJR
Project Number: G18-1648-10 Elevation: 1594'
Equipment: BACKHOE Location/Grid: SEE PLATE 1
Depth

0.0'-2.0'

2.0'-5.0'
Date: 9/4/18 Description:

A ARTIFICIAL FILL, UNDOCUMENTED:

Silty SAND/Clayey SILT; dark reddish brown to blackish brown, dry to damp, medium dense/firm, very fine to medium grained with some coarse to very coarse grains, coarse to very coarse rock fragments, some pores, roothairs, desiccated, oxidation staining
B OLDER ALLUVIAL FAN DEPOSITS:

Silty SAND; greenish gray and reddish brown, dry, very dense, very fine to medium grained, with some coarse grains, pinhole pores, roothairs, stopped digging at 5.0 feet due to practical refusal
GRAPHICAL REPRESENTATION:NORTH WALL I SCALE: 1" = 5'
·~ @
.!.
.- ··.•,···.:.@~· ·:·14.·. . B 1 · . . . 4 • ., . .
4 • .. . ..

Geologic
Unit
Afu
Qoa
LOG OF TRENCH IT-1
Engineering Properties
uses Sample
No.

SM/ML I Bulk @ 0'-2.0'
Nuke @1.0'
SM
Moisture
(%)

4.3 Dry
Density
(pcf)
107.5
SURFACE SLOPE: LEVEL TREND: N19E
TOTAL DEPT1 ~ 5.0 FEET
NO GROUND\l\'ATER

ENCOUNTERED
F.1.c
Packet Pg. 975 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Project Name: SIKAND - MORENO VALLEY Logged by: AJR
Project Number: 618-1648-10 Elevation: 1592'
Equipment: BACKHOE Location/Grid: SEE PLATE 1
Depth

0.0'-5.5'

5.5'-6.5'

6.5'-10.5'
Date: 9/4/18 Description:

A ARTIFICIAL FILL, UNDOCUMENTED:

Silty SAND/Clayey SILT; dark reddish brown to blackish brown, dry to damp, medium dense, very fine to medium grained with some coarse to very coarse grains, coarse to very coarse rock fragments, some pores, roothairs, desiccated, pieces of concrete
B OLDER ALLUVIAL FAN DEPOSITS:

Silty SAND; greenish gray and reddish brown, dry, very dense, very fine to medium grained, with some coarse grains, pinhole pores, roothairs, oxidation staining
C BEDROCK (TONALITE):

Quartz diorite, grayish white, dry, hard to very hard, oxidation staining @10.0'; some moderately weathered sections at one bottom of trench GRAPHICAL REPRESENTATION:NORTH WALL I SCALE: 1" = 5'
@
~~ ®I ~-P-"
I
~
41 ~· • • •
. + • • . ♦ , ----.,.--;-;-
.••••...•.• r · .• . •. + ♦ ♦ ·· @+ •• ♦ ♦• ♦• ♦ ♦ :r ♦ •• . •.·.·.· C ·.·.· . .r· ·=.: ♦: ♦• • • : • : + :J . • • • ♦ •• ♦ • • • :♦:♦:♦:♦:♦:♦:♦:♦•
LOG OF TRENCH IT-2
Engineering Properties
Geologic
Unit
uses
Afu I SM/ML
Qoa I SM
Kqdi
Sample
No.

Moisture
(%)
Dry
Density
(pcf)
SURFACE SLOPE: LEVEL TREND:N65E
I
TOTAL DEPT~=10.5 FEET
NO GROUND\fvATER

ENCOUNTERED
F.1.c
Packet Pg. 976 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Project Name: SIKAND - MORENO VALLEY Logged by: AJR
Project Number: G18-1648-10 Elevation: 1638'
Equipment: BACKHOE Location/Grid: SEE PLATE 1
Depth

0.0'-2.0'

2.0'-4.5'
Date: 9/4/18 Description:

A Alluvium:

Silty SAND; light reddish brown to gray brown, dry, loose, very fine to medium grained with some coarse grains, desiccated, roothairs and roots, pinhole pores and pores
8 BEDROCK (TONALITE):

Quartz Diorite, grayish white to blackish orange, dry to damp, moderately hard to hard, fine to very coarse grained, oxidation staining, moderately to very weathered, friable
@3.0' moderately weathered
GRAPHICAL REPRESENTATION:NORTH WALL I SCALE: 1" = 5'
-1~@
'".♦.,_::;~.:-,-~ .f_.:_.:-.~ ,•~t. t.,.•~~'\t~~~~ ~i~.;~~~· ~~~~1 R I-!;~~ .. ◄ Geologic
Unit
Qal
Kqd
LOG OF TRENCH TR-1
Engineering Properties
uses Sample
No.

Moisture
(%)
SM
Dry
Density
(pcf)
SURFACE SLOPE: LEVEL TREND:N30E
I I J TOTAL DEPT~= 4.5 FEET I NO GROUNDl.f\lATER

ENCOUNTERED
F.1.c
Packet Pg. 977 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Project Name: SIKAND - MORENO VALLEY Logged by: AJR
Project Number: G18-1648-1 O Elevation: 1640'
Equipment: BACKHOE Location/Grid: SEE PLATE 1
Depth

0.0'-7.0'

7.0'-8.0'
Date: 9/4/18 Description:

A ALLUVIUM:

Silty SAND; dark reddish brown.dry to damp, loose to medium dense, very fine to medium grained with some coarse grains, occasional coarse rock fragments, pores, roothairs
@2.0'; medium dense, desiccated
B BEDROCK (TONALITE):

Quartz Diorite, yellowish gray to blackish orange, dry to damp, hard, fine to very coarse grained, oxidation staining, manganese staining, slightly to moderately weathered, friable
GRAPHICAL REPRESENTATION:NORTH WALL I SCALE: 1" = 5'
4 ~~-- I·~~ _ ·1~~•-· · . • . ~ I 4 .. . .. ' I . . • . -~ ~ :. ~ .: . 4 · : ,- 'i, .. . . .. ;"· . . . ~ . . . : .... .- .... .. ·.
4 • . . • ""4 .. • ~ ... : r '. • · I • • -· _·1 4
' ., ·•
@
~ 4 • . 1'·
~
.• • . • 4S . .
.......... ~ ...... . l~~~•=•r-+ ~:.~• ~•~•: ~ ~~i_:••••• !_;.·• Geologic
Unit
Qal
Kqd
LOG OF TRENCH TR-2
Engineering Properties
uses
SM
Sample
No.

Bulk@ 5.0'-7.0'
Moisture
(%)
Dry
Density
(pcf)
SURFACE SLOPE: LEVEL TREND: N28W
i
I TOTAL DEPTH= 8.0 FEET I NO GROUNDWATER
. ENCOUNTERED
F.1.c
Packet Pg. 978 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Project Name: SIKAND - MORENO VALLEY Logged by: AJR
Project Number: G18-1648-10 Elevation: 1612'
Equipment: BACKHOE Location/Grid: SEE PLATE 1
Depth

0.0'-1 .0'

1.0'-2.5'

2.5'-3.0'
Date: 9/4/18 Description:

A TOPSOIL:

Silty SAND; light reddish brown to gray brown, dry, loose, very fine to medium grained with some coarse and very coarse grains, desiccated, roothairs and roots, pores
B OLDER ALLUVIUM FAN DEPOSITS:

Silty SAND; dark reddish brown, dry to damp, medium dense, very fine to coarse grained, clayey matrix, pores, root hairs, weathered C Silty SAND; olive gray to dark reddish purple, dry to damp, very dense, very fine to coarse grained, with some very coarse grains, caliche stringers and coating, pores and pinhole pores, roothairs @ 3.0', stopped digging pratical refusal
GRAPHICAL REPRESENTATION:NORTH WALL I SCALE: 1" = 5'
@
LOG OF TRENCH TR-3
Engineering Properties
Geologic USCS
Unit
SM
Qoa SM
SM
Sample
No.

Moisture
(%)
Dry
Density
(pcf)
SURFACE SLOPE: LEVEL TREND: N60E
I
I TOTAL DEPT~= 3.0 FEET I NO GROUND\j\JATER

ENCOUNTERED
F.1.c
Packet Pg. 979 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Project Name: SIKAND . MORENO VALLEY Logged by: AJR
Project Number: 618-1648-10 Elevation: 1608'
Equipment: BACKHOE Location/Grid: SEE PLATE 1
Depth

0.0'-0.5'

0.5'-4.5'
Date: 9/4/18 Description:

A TOPSOIL:

Silty SAND; reddish brown, loose, dry, very fine to medium grained with some coarse and very coarse grains, roots and roothairs, pores, desiccated
B BEDROCK (TONALITE):

Quartz Diorite, grayish white to blackish orange, dry to damp, moderately hard to hard, fine to very coarse grained, oxidation staining, very weathered, friable
@ 2.0', moderately weathered
GRAPHICAL REPRESENTATION:NORTH WALL I SCALE: 1" = 5'
@· . i~f ~;r a )t.~lt-: rr~ ... ,~•V#'~+•~ ~ +.,,~ 11~~~,.:':.:i./•-:1.t.:· ... ~ .

Geologic;
Unit
Kqd
LOG OF TRENCH TR-4
Engineering Properties
uses
SM
Sample
No.

Bulk @ 2.0'-4.5'
Moisture
(%)
Dry
Density
CPc:f)
SURFACE SLOPE: LEVEL TREND:N43E
l -
TOTAL DEPT~= 3.0 FEET
NO GROUND'-,\'ATER
ENCOUNTER~D
F.1.c
Packet Pg. 980 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Project Name: SIKAND . MORENO VALLEY Logged by: AJR
Project Number: 618-1648-10 Elevation: 1690'
Equipment: BACKHOE Location/Grid: SEE PLATE 1
Depth

0.0'-1.5'

1.5'-3.0'

3.0'-7.5'
Date: 9/6/18 Description:

A OLDER ALLUVIUM FAN DEPOSITS
Silty SAND; dark reddish purple to dark red brown, dry, loose to medium dense, very fine to medium grained, with occasional coarse grains, pores and pinhole pores, roots and roothairs, oxidation staining, weathered, blocky
B Silty SAND; reddish orange to light orange brown, dry, dense to very dense, very fine to medium grained with some coarse to very coarse grains, pinhole pores, roothairs, trace manganese staining
C BEDROCK (TONALITE):

Quartz Diorite; grayish white to blackish orange, dry to damp, moderately hard to hard, fine to very coarse grained, oxidation staining, manganese staining, moderately weathered, friable
@6.0'; slightly weathered, hard to very hard, practical refusal at 7.5' GRAPHICAL REPRESENTATION: NORTH WALL I SCALE: 1" = 5•
-· ... ~ - . ··@· ~ . "'·. !- • t •
... .. . • . :..:- A. . • •. · 1 •.4 .
. . . .. ..•
;:;!t·;1;~,;--t~-f;~{ ,.,. ♦ + .;,~~ ;, ..:, ... ¥~~-•~+•_.. , .. :;~ ~-· •-:~; •;:to., . 1'.."oifll ♦ ♦ ·~· -··♦ '♦ ~♦ ♦ ~·-· • ♦ .~ ..... + -- I + I
I
Geologic
Unit
Qoa
Kqd
LOG OF TRENCH TR-5
Engineering Properties
uses
SM
Sample
No.

Bulk @ 0.0'-2.0'
Moisture
(%)
Dry
Density
(pcf)
SURFACE SLOPE: LEVEL TREND:N12W
TOTAL DEPTfil= 7.5 FEET
I NO GROUND\fvATER
- ENCOUNTERED
F.1.c
Packet Pg. 981 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Project Name: SIKAND - MORENO VALLEY Logged by: AJR
Project Number: G18-1648-1 O Elevation: 1672'
Equipment: BACKHOE Location/Grid: SEE PLATE 1
Depth

0.0'-6.0'

6.0'-12.0'

12.0'-13.5'
Date: 9/6/18 Description:

A OLDER ALLUVIUM FAN DEPOSITS:

Silty SAND; dark brown to reddish brown, dry to damp, loose to medium dense, very fine to medium grained, with some coarse and very coarse grains, occasional coarse rock fragments, desiccated, pores, roots and roothairs, oxidation staining
@3.0'; medium dense, trace rock fragments, caliche stringers and coating B Silty SAND; reddish brown, dry, medium dense to dense, very fine to medium grained, with occasional coarse and very coarse grains, trace rock fragments, desiccated, pores, roots and roothairs, caliche stringers and coating
C BEDROCK (TONALITE):

Quartz Diorite, blackish orange to yellow brown, dry to damp, hard, fine to very coarse grains, friable, oxidation staining, moderately weathered GRAPHICAL REPRESENTATION:NORTH WALL I SCALE: 1" = 5'
I
I
I
I
. -~ ~ . ~ : .~ ~ .... --'>!.J.1-:'I · ~ · · . - ·.1 . '° ' . · 1.. · -~---~ .i: ~ _ ~ · . · ·. -1 . ·. . r . · ., • · ·," I -_.·· . . · - I .. _ d . · ' . · 4 4 ' . • ·· ·
• -. : . • ,,; . ··• 1 .. .. . . . . I . . . ~ • .
. . ·< .(i)j •··. .• . . . - .
....
• ~ .. i ; 1
. .., · 1 . . . . : . --: ' ..:. . A _i,_
-~ . 4
. ..,
LOG OF TRENCH TR-6
Engineering Properties
Geologic I uses I Sample I Moisture I D Di
No. (o/c) ens, • (pcf)
Unit
--
Qoa I SM I Bulk@ 2.0'-6.0'
Nuke @2.0' I 2.6 I 106.2
SM
Kqd
SURFACE SLOPE: LEVEL TREND:N4E
TOTAL DEPTHl=13.5 FEET I NO GROUND~ATER
ENCOUNTER~D
F.1.c
Packet Pg. 982 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) I
Project Name: SIKAND - MORENO VALLEY Logged by: AJR
Project Number: 618-1648-10 Elevation: 1624'
Equipment: BACKHOE Location/Grid: SEE PLATE 1
Depth

0.0'-2.0'

2.0'-4.5'
Date: 9/6/18 Description:

A TOPSOIL:

Silty SAND; reddish brown, dry to damp, medium dense, very fine to medium grained, with some coarse and very coarse grains, desiccated, pores, roothairs
8 WEA THE RED BEDROCK (TONALITE):

Well Grade GRAVEL; blackish orange to gray white, damp, moderately hard, fine to very coarse grained, highly weathered, oxidation staining, friable
@3.0'; dry, very hard, slightly weathered
@4.5', stopping digging practical refusal
GRAPHICAL REPRESENTATION:NORTH WALL I SCALE: 1" = 5'
~®
: ·-•>;;.<~<;-:_; •:·•~ + ;•@·.: ♦ ♦ ♦ ♦ + • • •
• .. ♦ ~
LOG OF TRENCH TR-7
Engineering Properties
Geologic USCS
Sample
No.

Moisture
(%)
Dry
Density
(pcf)
Unit
Qoa SM
Qdi SM
SURFACE SLOPE: LEVEL TREND:N13E
I i
I TOTAL DEPThi= 4.5 FEET I NO GROUND\f,JATER

ENCOUNTERED
F.1.c
Packet Pg. 983 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Project Name: SIKAND - MORENO VALLEY Logged by: AJR
Project Number: 618-1648-10 Elevation: 1612'
Equipment: BACKHOE Location/Grid: SEE PLATE 1
Depth I Date: 9/8/18 I Description:

0.0'-2.0' I A TOPSOIL:

Silty SAND; light reddish brown to gray brown, dry, loose, very fine to medium grained with some coarse and very coarse grains, desiccated, roothairs and roots, pores

2.0'-3.0' I B OLDER ALLUVIUM FAN DEPOSITS:

Silty SAND; dark reddish purple to olive gray, dry to damp, dense to very dense, very fine to coarse grained, clayey matrix, pores, root hairs, caliche stringers and coating, weathered

3.0'-7.0' Jc Silty SAND/Clayey SILT; dark brown to olive brown, damp, dense to very dense, very fine to medium grained with some coarse grains, occasional coarse and very coarse rock fragments, clayey matrix, oxidation staining, difficulty digging
GRAPHICAL REPRESENTATION:NORTH WALL I SCALE: 1" = 5'
1--',tµ..., ~
@
·1-
I LOG OF TRENCH TR-8
I Engineering Properties
I
uses I Sample I Moisture I O Di I Geologic No. (o/c) ens, 0 (pcf} Unit
I SM
I Qoa I SM I [email protected]' I 5.8 I 105.7
SM/ML Bulk@ 4.0'-6.0'
[email protected]' I 8.3 I 111.8
SURFACE SLOPE: LEVEL TREND:N62E
: TOTAL DEPTl = 7.0 FEET I NO GROUND\jVATER

ENCOUNTERED
F.1.c
Packet Pg. 984 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) B-1 General

APPENDIXB
Field Exploration
Geologic mapping of the site was performed by LGC's personnel. The locations of the exploratory excavations were chosen to obtain site and trench specific subsurface information needed to achieve the objective for this investigation.

A visual survey was conducted to verify that the proposed excavations would not encounter any subsurface utility lines. Underground utilities were not encountered during the field exploratory program.

B-2 Excavation and Sampling
Surface geologic mapping of the site and accessible surrounding areas was completed by a geologist from this firm during September 2018, utilizing the referenced Conceptual Grading Plan Tract Map No. 37557 for plotting geologic units. This information is plotted on the enclosed Geotechnical Map (Plate 1).

Ten (10) exploratory trenches, TR-1 through TR-8 and IT-1 through IT-2, were excavated with a backhoe on September 4, 2018 and September 6, 2018 to depths of approximately 3.0 to 13.5 feet below the existing ground surface. The trenches were excavated to evaluate the general characteristics of the subsurface geologic/geotechnical conditions at the subject site, which consisted of classification of site soil, determination of groundwater elevations (if present), and collection of representative soil and bedrock samples.

Prior to our subsurface work, an underground utilities clearance was obtained from Underground Service Alert of Southern California. At the conclusion of the subsurface investigation, test pits were backfilled with native materials. Minor settlement of the backfill soil may occur over time.

During our subsurface investigation, representative bulk samples were retained for laboratory testing.

Laboratory testing was performed on selected representative samples of onsite soil and/or bedrock materials and included maximum dry density and optimum water content, expansion index, sulfate content, chloride content, pH, resistivity, grain size analysis, and direct shear. A discussion of the tests performed and a summary of the results are presented in Appendix C. Moisture and density test results are presented on the trench logs which are presented on the following pages.

B-3 Miscellaneous
The trench logs describe the earth materials encountered, sampling method used, and the results of field and laboratory tests. The logs also show the test pit number, date of completion, and the name of the logger. A geologist logged the trenches in accordance with the Standard Practice for Description and Identification of Soils (Visual-Manual Procedure) ASTM 02488-93. The boundaries between soil types shown on the logs are approximate and the transition between different soil layers may be gradual. The logs of the trenches are presented on the following pages.

F.1.c
Packet Pg. 985 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

APPENDIXC

LABORATORY TESTING PROCEDURES AND TEST RESULTS
F.1.c
Packet Pg. 986 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

APPENDIXC
Laboratory Testing Procedures and Test Results
The laboratory testing program was directed towards providing quantitative data relating to the relevant engineering properties of the soil. Samples considered representative of site conditions were tested in general accordance with American Society for Testing and Materials (ASTM) procedure and/or California Test Methods (CTM), where applicable. The following summary is a brief outline of the test type and a table summarizing the test results.

Soil Classification: Soil were classified according the Unified Soil Classification System (USCS) in accordance with ASTM Test Methods D2487 and D2488. The soil classifications (or group symbol) are shown on the laboratory test data, and boring logs.

Maximum Dry Density Tests: The maximum dry density and optimum water content of typical materials were determined in accordance with ASTM test method D1557. The test results are presented in the table below:

SAMPLE SAMPLE DESCRIPTION MAXIMUM DRY DENSITY OPTIMUM WATER LOCATION (USCS) (% by weight) CONTENT(%)
IT-1@ 0-2' Silty SAND/Clayey SILT (SM/ML) 135.9 7.0
TR-4 @2-4' Bedrock; Quartz Diorite 133.2 7.0
TR-8@ 4-6' Silty SAND/Clayey SILT (SM/ML) 128.3 9.0
Expansion Index: The expansion potential of a selected sample was evaluated by the Expansion Index Test, U.B.C. Standard No. 18-2 and/or ASTM test method 04829. Specimens are molded under a given compactive energy at or near the optimum moisture content and approximately 50 percent saturation or approximately 90 percent relative compaction. The prepared 1-inch thick by 4-inch diameter specimens are loaded to an equivalent 144 psf surcharge and are inundated with tap water until volumetric equilibrium is reached. The results of these tests are presented in the table below:

SAMPLE SAMPLE EXPANSION EXPANSION
LOCATION DESCRIPTION(USCS) INDEX POTENTIAL*
TR-8 @4-6' Silty SAND/Clayey SILT (SM/ML) 19 Very Low
*Per ASTM 04829
Soluble Sulfates: The soluble sulfate content of selected samples was determined by standard geotechnical methods (CTM 417). The soluble sulfate content is used to determine the appropriate cement type and maximum water-cement ratios. The test results are presented in the table below:

SAMPLE SAMPLE SULFATE CONTENT SULFATE
LOCATION DESCRIPTION(USCS) {ppm} EXPOSURE*
TR-8@ 4-6' Silty SAND/Clayey SILT (SM/ML) Non-Detect Negligible *Per ACI 318R-05 Table 4.3.1
Chloride Content: Chloride content was tested with CTM 422. The results are presented below:

SAMPLE LOCATION SAMPLE DESCRIPTION(USCS) CHLORIDE CONTENT,~. I .

TR-8@ 4-6' Silty SAND/Clayey SILT (SM/ML) 128
F.1.c
Packet Pg. 987 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Minimum Resistivity and pH Tests: Minimum resistivity and pH tests were performed with CTM 643. The results are presented in the table below:

SAMPLE SAMPLE pH MINIMUM RESIST.lVITY
LOCATION DESCRIPTION(USCS) {ohm-cm}
TR-8@4-6' Silty SAND/Clayey SILT (SM/ML) 7.5 1,100
Direct Shear: Direct shear tests were performed on selected remolded samples, which were soaked for a minimum of 24 hours under a surcharge equal to the applied normal force during testing. After transfer of the sample to the shear box, and reloading the sample, pore pressures set up in the sample due to the transfer were allowed to dissipate for a period of approximately 1 hour prior to application of shearing force. The samples were tested under various normal loads, a motor-driven, strain-controlled, direct-shear testing apparatus at a strain rate of less than 0.001 to 0.5 inch per minute (depending upon the soil type). The graphical test results are presented in the table below:

SAMPLE LOCATION SAMPLE DESCRIPTION ANGLE OF INTERNAL COHESION FRICTION {degrees} {psi'}
I TR-8@ 4-6' I Silty SAND/Clayey SILT (SM/ML) I 36 I 20 I F.1.c
Packet Pg. 988 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

APPENDIXD

GENERAL EARTHWORK AND GRADING SPECIFICATIONS
F.1.c
Packet Pg. 989 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

1.0 APPENDIXD
General Earthwork and Grading Specifications
General

1.1 Intent: These General Earthwork and Grading Specifications are for the grading and earthwork shown on the approved grading plan(s) and/or indicated in the geotechnical report(s). These Specifications are a part of the recommendations contained in the geotechnical report(s). In case of conflict, the specific recommendations in the geotechnical report shall supersede these more general Specifications. Observations of the earthwork by the project Geotechnical Consultant during the course of grading may result in new or revised recommendations that could supersede these specifications or the recommendations in the geotechnical report(s).

1.2 The Geotechnical Consultant of Record: Prior to commencement of work, the owner shall employ a qualified Geotechnical Consultant of Record (Geotechnical Consultant). The Geotechnical Consultant shall be responsible for reviewing the approved geotechnical report(s) and accepting the adequacy of the preliminary geotechnical findings, conclusions, and recommendations prior to the commencement of the grading.

Prior to commencement of grading, the Geotechnical Consultant shall review the "work plan" prepared by the Earthwork Contractor (Contractor) and schedule sufficient personnel to perform the appropriate level of observation, mapping, and compaction testing.

During the grading and earthwork operations, the Geotechnical Consultant shall observe, map, and document the subsurface exposures to verify the geotechnical design assumptions. If the observed conditions are found to be significantly different than the interpreted assumptions during the design phase, the Geotechnical Consultant shall inform the owner, recommend appropriate changes in design to accommodate the observed conditions, and notify the review agency where required.

The Geotechnical Consultant shall observe the moisture-conditioning and processing of the subgrade and fill materials and perform relative compaction testing of fill to confirm that the attained level of compaction is being accomplished as specified. The Geotechnical Consultant shall provide the test results to the owner and the Contractor on a routine and frequent basis.

1.3 The Earthwork Contractor: The Earthwork Contractor (Contractor) shall be qualified, experienced, and knowledgeable in earthwork logistics, preparation and processing of ground to receive fill, moisture-conditioning and processing of fill, and compacting fill. The Contractor shall review and accept the plans, geotechnical report(s), and these Specifications prior to commencement of grading. The Contractor shall be solely responsible for performing the grading in accordance with the project plans and specifications. The Contractor shall prepare and submit to the owner and the Geotechnical Consultant a work plan that indicates the sequence of earthwork grading, the number of "equipment" of work and the estimated quantities of daily earthwork contemplated for the site prior to commencement of grading.

The Contractor shall inform the owner and the Geotechnical Consultant of changes in work schedules and updates to the work plan at least 24 hours in advance of such changes so that appropriate personnel will be available for observation and testing. The Contractor shall not assume that the Geotechnical Consultant is aware of all grading operations.

The Contractor shall have the sole responsibility to provide adequate equipment and methods to accomplish the earthwork in accordance with the applicable grading codes and agency ordinances, these Specifications, and the recommendations in the approved geotechnical report(s) and grading plan(s). If, in the opinion of the Geotechnical Consultant, unsatisfactory F.1.c
Packet Pg. 990 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

2.0 conditions, such as unsuitable soil, improper moisture condition, inadequate compaction, insufficient buttress key size, adverse weather, etc., are resulting in a quality of work less than required in these specifications, the Geotechnical Consultant shall reject the work and may recommend to the owner that construction be stopped until the conditions are rectified. It is the contractor's sole responsibility to provide proper fill compaction.

Preparation of Areas to be Filled

2.1 Clearing and Grubbing: Vegetation, such as brush, grass, roots, and other deleterious material shall be sufficiently removed and properly disposed of in a method acceptable to the owner, governing agencies, and the Geotechnical Consultant.

The Geotechnical Consultant shall evaluate the extent of these removals depending on specific site conditions. Earth fill material shall not contain more than 1 percent of organic materials (by volume). No fill lift shall contain more than 10 percent of organic matter. Nesting of the organic materials shall not be allowed.

If potentially hazardous materials are encountered, the Contractor shall stop work in the affected area, and a hazardous material specialist shall be informed immediately for proper evaluation and handling of these materials prior to continuing to work in that area.

As presently defined by the State of california, most refined petroleum products (gasoline, diesel fuel, motor oil, grease, coolant, etc.) have chemical constituents that are considered to be hazardous waste. As such, the indiscriminate dumping or spillage of these fluids onto the ground may constitute a misdemeanor, punishable by fines and/or imprisonment, and shall not be allowed. The contractor is responsible for all hazardous waste relating to his work. The Geotechnical Consultant does not have expertise in this area. If hazardous waste is a concern, then the Client should acquire the services of a qualified environmental assessor.

2.2 Processing: Existing ground that has been declared satisfactory for support of fill by the Geotechnical Consultant shall be scarified to a minimum depth of 6 inches. Existing ground that is not satisfactory shall be overexcavated as specified in the following section. Scarification shall continue until soil are broken down and free of oversize material and the working surface is reasonably uniform, flat, and free of uneven features that would inhibit uniform compaction.

2.3 Overexcavation: In addition to removals and overexcavations recommended in the approved geotechnical report(s) and the grading plan, soft, loose, dry, saturated, spongy, organic-rich, highly fractured or otherwise unsuitable ground shall be overexcavated to competent ground as evaluated by the Geotechnical Consultant during grading.

2.4 Benching: Where fills are to be placed on ground with slopes steeper than 5: 1 (horizontal to vertical units), the ground shall be stepped or benched. The lowest bench or key shall be a minimum of 15 feet wide and at least 2 feet deep, into competent material as evaluated by the Geotechnical Consultant. Other benches shall be excavated a minimum height of 4 feet into competent material or as otherwise recommended by the Geotechnical Consultant. Fill placed on ground sloping flatter than 5:1 shall also be benched or otherwise overexcavated to provide a flat subgrade for the fill.

2.5 Evaluation/Acceptance of Fill Areas: All areas to receive fill, including removal and processed areas, key bottoms, and benches, shall be observed, mapped, elevations recorded, and/or tested prior to being accepted by the Geotechnical Consultant as suitable to receive fill.

The Contractor shall obtain a written acceptance from the Geotechnical Consultant prior to fill placement. A licensed surveyor shall provide the survey control for determining elevations of processed areas, keys, and benches.

F.1.c
Packet Pg. 991 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

3.0 4.0
F111 Material
3 .1 General: Material to be used as fill shall be essentially free of organic matter and other deleterious substances evaluated and accepted by the Geotechnical Consultant prior to placement. Soil of poor quality, such as those with unacceptable gradation, high expansion potential, or low strength shall be placed in areas acceptable to the Geotechnical Consultant or mixed with other soil to achieve satisfactory fill material.

3.2 Oversize: Oversize material defined as rock, or other irreducible material with a maximum dimension greater than 8 inches, shall not be buried or placed in fill unless location, materials, and placement methods are specifically accepted by the Geotechnical Consultant. Placement operations shall be such that nesting of oversized material does not occur and such that oversize material is completely surrounded by compacted or densified fill. Oversize material shall not be placed within 10 vertical feet of finish grade or within 2 feet of future utilities or underground construction.

3.3 Import: If importing of fill material is required for grading, proposed import material shall meet the requirements of Section 3.1. The potential import source shall be given to the Geotechnical Consultant at least 48 hours (2 working days) before importing begins so that its suitability can be determined and appropriate tests performed.

Fill Placement and Compaction

4.1 Fill Layers: Approved fill material shall be placed in areas prepared to receive fill (per Section 3.0) in near-horizontal layers not exceeding 8 inches in loose thickness. The Geotechnical Consultant may accept thicker layers if testing indicates the grading procedures can adequately compact the thicker layers. Each layer shall be spread evenly and mixed thoroughly to attain relative uniformity of material and moisture throughout.

4.2 Fill Moisture Conditioning: Fill soil shall be watered, dried back, blended, and/or mixed, as necessary to attain relatively uniform moisture content at or slightly over optimum. Maximum density and optimum soil moisture content tests shall be performed in accordance with the American Society of Testing and Materials (ASTM Test Method D1557-91).

4.3 Compaction of Fill: After each layer has been moisture-conditioned, mixed, and evenly spread, it shall be uniformly compacted to not less than 90 percent of maximum dry density (ASTM Test Method D1557-91). Compaction equipment shall be adequately sized and be either specifically designed for soil compaction or of proven reliability to efficiently achieve the specified level of compaction with uniformity.

4.4 Compaction of Fill Slopes: In addition to normal compaction procedures specified above, compaction of slopes shall be accomplished by backrolling of slopes with sheepsfoot rollers at increments of 3 to 4 feet in fill elevation, or by other methods producing satisfactory results acceptable to the Geotechnical Consultant. Upon completion of grading, relative compaction of the fill, out to the slope face, 'shall be at least 90 percent of maximum density per ASTM Test Method D1557-91.

4.5 Compaction Testing: Field tests for moisture content and relative compaction of the fill soil shall be performed by the Geotechnical Consultant. Location and frequency of tests shall be at the Consultant's discretion based on field conditions encountered. Compaction test locations will not necessarily be selected on a random basis. Test locations shall be selected to verify adequacy of compaction levels in areas that are judged to be prone to inadequate compaction (such as close to slope faces and at the fill/bedrock benches).

4.6 Frequency of Compaction Testing: Tests shall be taken at intervals not exceeding 2 feet in vertical rise and/or 1,000 cubic yards of compacted fill soil embankment. In addition, as a F.1.c
Packet Pg. 992 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) guideline, at least one (1) test shall be taken on slope faces for each 5,000 square feet of slope face and/or each 10 feet of vertical height of slope. The Contractor shall assure that fill construction is such that the testing schedule can be accomplished by the Geotechnical Consultant. The Contractor shall stop or slow down the earthwork construction if these minimum standards are not met.

4.7 Compaction Test Locations:

The Geotechnical Consultant shall document the approximate elevation and horizontal coordinates of each test location. The Contractor shall coordinate with the project surveyor to assure that sufficient grade stakes are established so that the Geotechnical Consultant can determine the test locations with sufficient accuracy. At a minimum, two (2) grade stakes within a horizontal distance of 100 feet and vertically less than 5 feet apart from potential test locations shall be provided.

5.0 Subdrain Installation
Subdrain systems shall be installed in accordance with the approved geotechnical report(s) and grading plan. The Geotechnical Consultant may recommend additional subdrain and/or changes in subdrain extent, location, grade, or material depending on conditions encountered during grading. All subdrains shall be surveyed by a land surveyor/civil engineer for line and grade after installation and prior to burial.

Sufficient time should be allowed by the Contractor for these surveys.

F.1.c
Packet Pg. 993 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

NATURAL GROUND
PROPOSED GRADE~

VERTICAL

BENCHES
Notes:
1) Continuous runs in excess of 500'
shall use 8" diameter pipe.
2) Final 20' of pipe at outlet shall be
non-perforated and backfilled with
fine-grained material.
\
12" MIN. OVERLAP,. __ _,,
TIED EVERY 6 FEET
6" COLLECfOR PJPE \
(SCHED.40, PERF. PVC)
9 FP/FT.

OUTLET DETAIL 3/4" CRUSHED ROCK
....___
....___
....___
REMOVE

UNSUITABLE

MATERIALS
FINISHED DESIGN GRADE POSSIBLE DEEPER DEPENDENT GEOFABRIC (MIRAFI 140N

UPON SITE CONDITIONS OR APPROVED EQUIVALENT)
6" PERFORATED PVC SCHEDULE 40
=!=======~~~==c!:a!'. ;.~i,;ji;;'.;}-- 3/4" CRUSHED ROCK 20' MIN. MIN. I- GEOFABRIC (MIRAFI 140N
6" NON-PERF. PVC PIPE-j OR APPROVED EQUIVALENT)

CANYON &
STREET

SUBDRAINS
F.1.c
Packet Pg. 994 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) 5'

PROPOSED GRADE
4" PERF. PVC BACKD ,\:-i·<:_.·~
5' TYPICAL COMPACTED FILL

IF RECOMMENDED BY SOILS ENGINEER
· .. !_:·-~r.
4" SOLID PVC OU . _-.. ·:.:·
buttr
E
(~
- 15'MIN.)
REATER OF 2% '--
LOPE OR 1' TILT ~
ACK
PERF. PVC PIPE - 1/4"
DIA. PERFORATIONS IN

LOWER HALF OF PIPE
\
12" MIN. OVERLAP,
TIED EVERY 6 FEET _ ---1-+-~
SCHED.40 SOLID PVC OUTLET PIPE,
(TRENCH TO BE FILLED
WITH NATIVE MATERIALS) ___ ,,_
OUTLETS TO BE PLACED EVERY 100' (max) O.C. \L-_--:,.

POSffiVE SEAL AT JOINT ~~~~~~
GEOFABRIC(MIRAFI 140N _______ ...r--._

OR APPROVED EQUIVALENT) ------

TYPICAL BUTTRESS/

STABILIZATION FILL
DETAIL
F.1.c
Packet Pg. 995 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

DEEPER IN AREAS OF
SWIMMING POOLS, ETC.

SLOPE FACE

FINISHED SURFACE
1 /. - -
A -15' MIN ----~ , ,, -
- - - - - - - - - - - -4
- 23' MIN.
~ 15' MIN.~
_ A'_ _ _ _ OVERSIZE~£---- _ _ __ _ BOULDERK _
----- -- - ------
- ------

WINDROW PARALLEL TO SLOPE FACE

JETTED OR FLOODED

GRANULAR MATERIAL
[Sand Equivalent (S.E.) of 30 or Greater]

EXCAVATED TRENCH

OR DOZER V-CUT
NOTE: OVERSIZE ROCK IS
LARGER THAN 12" IN DIMENSION. SECTION A-A'

OVERSIZE
ROCK

DISPOSAL
F.1.c
Packet Pg. 996 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

DEEPER IN AREAS OF
SWIMMING POOLS, ETC.

SLOPE FACE

FINISHED SURFACE
1 /. - -
//2 _15' MJN _ ___,-J...::-,..,. ,/' - -
- - - - -
- 23' MIN.
~15' MIN.~
_ A'_ _ _ _ OVERSIZE~%_ -
_ _ _ _ BOULDERK _
-------
-------
-------

WINDROW PARALLEL TO SLOPE FACE

JETTED OR FLOODED

GRANULAR MATERIAL
[Sand Equivalent (S.E.) of 30 or Greater]

EXCAVATED TRENCH

OR DOZER V-CUT
NOTE: OVERSIZE ROCK IS
LARGER THAN 12" IN DIMENSION. SECTION A-A'

OVERSIZE
ROCK

DISPOSAL

COMPACTED
FILL
F.1.c
Packet Pg. 997 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

FILL SLOPE

PROPOSED
GRADE
_ COMPACTED-_ - _ - _ -: ; _.--
- - FILL - -:.---~ ~ -...,.

NATURAL - - - - - - -- .-... - - - - - - - :trt.\.S ..c:- - - - GROUND - - - - - - t,hrt.'1E.\\ - - - ~ ~e\.E.- ~ - - - -- \)\l\5\)'t - - - - - - 7 ::o\"\E. O~ 4' TYPI AL
..;;;-- ft.\.,,. - - - f l-ho\J - - - -t--t----=,-,-------~ - ~ ~ - - - i---- - - ---1--- 9' MIN. BENCH WIDTH

COMPETENT MATERIAL
2'MIN. j l ~ •1----------+--115' MIN. KEY WIDTH

FILL-OVER-CUT SLOPE

NATURAL
GROUND ~
CUTFACE *

PROPOSED
GRADE
- COMPACTED - - - - --- - - FILL -
- - ------~=--"'- ---- - - -:;;;:- --E.~~\; -s ..c:' - ...,,__ _ - - -- f. t,h~'1 - - - -:",-rl 11.6\.; - --: Sv,._,,,. - - - :::::- - of utl - - - - - - 1,0\1\;.. - t-\o\Jft-\. - - - \'.lE. - - - - COMPETENT MATERIAL ..--~rr=T,..,...,.a-r~,e-s - -i- 9' MIN. BENCH WIDTH
i----- -----+--15' MIN. KEY WIDTH

CUT-OVER-FILL SLOPE

PROPOSED GRADE
L=H COMPETENT MATERIAL
*CUT FACE SHOULD BE CONSTRUCTED

PRIOR TO FILL PLACEMENT
Note: Natural slopes steeper than 5:1 (h:v)
must be benched.

KEYING AND

BENCHING
-
-
F.1.c
Packet Pg. 998 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Appendix F
Slope Stability Report

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Packet Pg. 1025
Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

STREET A

STREET B

STREET C
APN: 256-150-010
APN: 256-150-011
APN: 256-150-012
APN: 256-150-040
C
C
APN: 256-150-039 APN: 256-150-038 APN: 256-150-037
APN: 256-160-017 APN: 256-160-002
(VACANT)
B
B

JENNING COURT

HILLMER COURT A A
A'
B
B'
- Global Stability Cross Section
Location for Composite Wall GLOBAL STABILITY CROSS SECTIONS LOCATION MAP Gateway Heights, 108 Cluster Unit Development City of Moreno Valley, County of Riverside, California
Gateway Heights D21-1029-10 United Engineering Group 1"=150' June 2021 United Engineering Group, 2021, "Conceptual Grading Plan," Scale 1" = 60', dated March 1 of 1 Robert Sargent Name: Project No. Client: Scale: Date: Reference: Plate No. Civil Engineer LEGEND (Locations are Approximate) Symbols A A' DGS DYNAMIC GEOTECHNICAL SOLUTIONS 27570 Commerce Center Dr., #128, Temeculca, CA 92590 Phone: 951.297.2450 Fax: 951.719.2998 F.1.c Packet Pg. 1026 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Appendix G
EDR Radius Map Report

F.1.c
Packet Pg. 1027 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

FORM-LBE-KKT
The EDR Radius Map™ Report with GeoCheck®
6 Armstrong Road, 4th floor
Shelton, CT 06484
Toll Free: 800.352.0050
www.edrnet.com
Gateway Heights Residential Project
Not Reported
Moreno Valley, CA 92557
Inquiry Number: 6541790.2s
June 17, 2021
F.1.c
Packet Pg. 1028 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

SECTION PAGE
Executive Summary ES1
Overview Map 2
Detail Map 3
Map Findings Summary 4
Map Findings 9
Orphan Summary 11
Government Records Searched/Data Currency Tracking GR-1

GEOCHECK ADDENDUM
Physical Setting Source Addendum A-1
Physical Setting Source Summary A-2
Physical Setting SSURGO Soil Map A-5
Physical Setting Source Map A-12
Physical Setting Source Map Findings A-14
Physical Setting Source Records Searched PSGR-1
TC6541790.2s Page 1
Thank you for your business.

Please contact EDR at 1-800-352-0050
with any questions or comments.

Disclaimer - Copyright and Trademark Notice
This Report contains certain information obtained from a variety of public and other sources reasonably available to Environmental Data Resources, Inc. It cannot be concluded from this Report that coverage information for the target and surrounding properties does not exist from other sources. NO WARRANTY EXPRESSED OR IMPLIED, IS MADE WHATSOEVER IN CONNECTION WITH THIS REPORT. ENVIRONMENTAL DATA RESOURCES, INC. SPECIFICALLY DISCLAIMS THE MAKING OF ANY SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE. ALL RISK IS ASSUMED BY THE USER. IN NO EVENT SHALL ENVIRONMENTAL DATA RESOURCES, INC. BE LIABLE TO ANYONE, WHETHER ARISING OUT OF ERRORS OR OMISSIONS, NEGLIGENCE,

ACCIDENT OR ANY OTHER CAUSE, FOR ANY LOSS OF DAMAGE, INCLUDING, WITHOUT LIMITATION, SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES. ANY LIABILITY ON THE PART OF ENVIRONMENTAL DATA RESOURCES, INC. IS STRICTLY LIMITED TO A REFUND OF THE AMOUNT PAID FOR THIS REPORT. Purchaser accepts this Report "AS IS". Any analyses, estimates, ratings, environmental risk levels or risk codes provided in this Report are provided for illustrative purposes only, and are not intended to provide, nor should they be interpreted as providing any facts regarding, or prediction or forecast of, any environmental risk for any property. Only a Phase I Environmental Site Assessment performed by an environmental professional can provide information regarding the environmental risk for any property. Additionally, the information provided in this Report is not to be construed as legal advice.

Copyright 2020 by Environmental Data Resources, Inc. All rights reserved. Reproduction in any media or format, in whole or in part, of any report or map of Environmental Data Resources, Inc., or its affiliates, is prohibited without prior written permission.

EDR and its logos (including Sanborn and Sanborn Map) are trademarks of Environmental Data Resources, Inc. or its affiliates. All other trademarks used herein are the property of their respective owners.

TABLE OF CONTENTS
F.1.c
Packet Pg. 1029 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

EXECUTIVE SUMMARY
TC6541790.2s EXECUTIVE SUMMARY 1
A search of available environmental records was conducted by Environmental Data Resources, Inc (EDR).

The report was designed to assist parties seeking to meet the search requirements of EPA’s Standards and Practices for All Appropriate Inquiries (40 CFR Part 312), the ASTM Standard Practice for Environmental Site Assessments (E 1527-13), the ASTM Standard Practice for Environmental Site Assessments for Forestland or Rural Property (E 2247-16), the ASTM Standard Practice for Limited Environmental Due Diligence: Transaction Screen Process (E 1528-14) or custom requirements developed for the evaluation of environmental risk associated with a parcel of real estate.

TARGET PROPERTY INFORMATION

ADDRESS

NOT REPORTED
MORENO VALLEY, CA 92557

COORDINATES
Latitude (North): 33.9593590 - 33˚ 57’ 33.69’’
Longitude (West): 117.2946020 - 117˚ 17’ 40.56’’
Universal Tranverse Mercator: Zone 11
UTM X (Meters): 472780.5
UTM Y (Meters): 3757494.5
Elevation: 1680 ft. above sea level

USGS TOPOGRAPHIC MAP ASSOCIATED WITH TARGET PROPERTY
Target Property Map: 5641312 RIVERSIDE EAST, CA
Version Date: 2012

AERIAL PHOTOGRAPHY IN THIS REPORT
Portions of Photo from: 20140603
Source: USDA
F.1.c
Packet Pg. 1030 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) 6541790.2s Page 2
A2 MARCH AFB RIFLE RANG ENVIROSTOR Higher 1428, 0.270, East A1 MARCH AFB RIFLE RANG FUDS Higher 1428, 0.270, East

MAPPED SITES SUMMARY
Target Property Address:

NOT REPORTED
MORENO VALLEY, CA 92557
Click on Map ID to see full detail.

MAP RELATIVE DIST (ft. & mi.)

ID DATABASE ACRONYMS ELEVATION DIRECTION SITE NAME ADDRESS F.1.c
Packet Pg. 1031 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

EXECUTIVE SUMMARY
TC6541790.2s EXECUTIVE SUMMARY 3

TARGET PROPERTY SEARCH RESULTS
The target property was not listed in any of the databases searched by EDR.

DATABASES WITH NO MAPPED SITES
No mapped sites were found in EDR’s search of available ("reasonably ascertainable ") government records either on the target property or within the search radius around the target property for the following databases:

STANDARD ENVIRONMENTAL RECORDS
Federal NPL site list
NPL National Priority List
Proposed NPL Proposed National Priority List Sites
NPL LIENS Federal Superfund Liens
Federal Delisted NPL site list
Delisted NPL National Priority List Deletions
Federal CERCLIS list
FEDERAL FACILITY Federal Facility Site Information listing SEMS Superfund Enterprise Management System
Federal CERCLIS NFRAP site list
SEMS-ARCHIVE Superfund Enterprise Management System Archive Federal RCRA CORRACTS facilities list
CORRACTS Corrective Action Report
Federal RCRA non-CORRACTS TSD facilities list
RCRA-TSDF RCRA - Treatment, Storage and Disposal
Federal RCRA generators list
RCRA-LQG RCRA - Large Quantity Generators
RCRA-SQG RCRA - Small Quantity Generators
RCRA-VSQG RCRA - Very Small Quantity Generators (Formerly Conditionally Exempt Small Quantity Generators)
Federal institutional controls / engineering controls registries LUCIS Land Use Control Information System
F.1.c
Packet Pg. 1032 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

EXECUTIVE SUMMARY
TC6541790.2s EXECUTIVE SUMMARY 4
US ENG CONTROLS Engineering Controls Sites List
US INST CONTROLS Institutional Controls Sites List
Federal ERNS list
ERNS Emergency Response Notification System
State- and tribal - equivalent NPL
RESPONSE State Response Sites
State and tribal landfill and/or solid waste disposal site lists SWF/LF Solid Waste Information System
State and tribal leaking storage tank lists
LUST Geotracker’s Leaking Underground Fuel Tank Report
INDIAN LUST Leaking Underground Storage Tanks on Indian Land CPS-SLIC Statewide SLIC Cases
State and tribal registered storage tank lists
FEMA UST Underground Storage Tank Listing
UST Active UST Facilities
AST Aboveground Petroleum Storage Tank Facilities
INDIAN UST Underground Storage Tanks on Indian Land
State and tribal voluntary cleanup sites
VCP Voluntary Cleanup Program Properties
INDIAN VCP Voluntary Cleanup Priority Listing
State and tribal Brownfields sites
BROWNFIELDS Considered Brownfieds Sites Listing

ADDITIONAL ENVIRONMENTAL RECORDS
Local Brownfield lists
US BROWNFIELDS A Listing of Brownfields Sites
Local Lists of Landfill / Solid Waste Disposal Sites
WMUDS/SWAT Waste Management Unit Database
SWRCY Recycler Database
HAULERS Registered Waste Tire Haulers Listing
INDIAN ODI Report on the Status of Open Dumps on Indian Lands ODI Open Dump Inventory
DEBRIS REGION 9 Torres Martinez Reservation Illegal Dump Site Locations IHS OPEN DUMPS Open Dumps on Indian Land
Local Lists of Hazardous waste / Contaminated Sites
US HIST CDL Delisted National Clandestine Laboratory Register F.1.c
Packet Pg. 1033 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

EXECUTIVE SUMMARY
TC6541790.2s EXECUTIVE SUMMARY 5
HIST Cal-Sites Historical Calsites Database
SCH School Property Evaluation Program
CDL Clandestine Drug Labs
Toxic Pits Toxic Pits Cleanup Act Sites

CERS HAZ WASTE CERS HAZ WASTE
US CDL National Clandestine Laboratory Register
PFAS PFAS Contamination Site Location Listing
Local Lists of Registered Storage Tanks
SWEEPS UST SWEEPS UST Listing
HIST UST Hazardous Substance Storage Container Database CERS TANKS California Environmental Reporting System (CERS) Tanks CA FID UST Facility Inventory Database
Local Land Records
LIENS Environmental Liens Listing
LIENS 2 CERCLA Lien Information
DEED Deed Restriction Listing
Records of Emergency Release Reports
HMIRS Hazardous Materials Information Reporting System
CHMIRS California Hazardous Material Incident Report System LDS Land Disposal Sites Listing
MCS Military Cleanup Sites Listing
SPILLS 90 SPILLS 90 data from FirstSearch
Other Ascertainable Records
RCRA NonGen / NLR RCRA - Non Generators / No Longer Regulated DOD Department of Defense Sites
SCRD DRYCLEANERS State Coalition for Remediation of Drycleaners Listing US FIN ASSUR Financial Assurance Information

EPA WATCH LIST EPA WATCH LIST
2020 COR ACTION 2020 Corrective Action Program List
TSCA Toxic Substances Control Act
TRIS Toxic Chemical Release Inventory System
SSTS Section 7 Tracking Systems
ROD Records Of Decision
RMP Risk Management Plans
RAATS RCRA Administrative Action Tracking System
PRP Potentially Responsible Parties
PADS PCB Activity Database System
ICIS Integrated Compliance Information System
FTTS FIFRA/ TSCA Tracking System - FIFRA (Federal Insecticide, Fungicide, & Rodenticide Act)/TSCA (Toxic Substances Control Act)
MLTS Material Licensing Tracking System
COAL ASH DOE Steam-Electric Plant Operation Data
COAL ASH EPA Coal Combustion Residues Surface Impoundments List PCB TRANSFORMER PCB Transformer Registration Database
RADINFO Radiation Information Database
HIST FTTS FIFRA/TSCA Tracking System Administrative Case Listing DOT OPS Incident and Accident Data
F.1.c
Packet Pg. 1034 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

EXECUTIVE SUMMARY
TC6541790.2s EXECUTIVE SUMMARY 6
CONSENT Superfund (CERCLA) Consent Decrees
INDIAN RESERV Indian Reservations
FUSRAP Formerly Utilized Sites Remedial Action Program
UMTRA Uranium Mill Tailings Sites
LEAD SMELTERS Lead Smelter Sites
US AIRS Aerometric Information Retrieval System Facility Subsystem US MINES Mines Master Index File
ABANDONED MINES Abandoned Mines
FINDS Facility Index System/Facility Registry System
ECHO Enforcement & Compliance History Information
UXO Unexploded Ordnance Sites
DOCKET HWC Hazardous Waste Compliance Docket Listing
FUELS PROGRAM EPA Fuels Program Registered Listing
CA BOND EXP. PLAN Bond Expenditure Plan
Cortese "Cortese" Hazardous Waste & Substances Sites List CUPA Listings CUPA Resources List
DRYCLEANERS Cleaner Facilities
EMI Emissions Inventory Data
ENF Enforcement Action Listing
Financial Assurance Financial Assurance Information Listing HAZNET Facility and Manifest Data

ICE ICE
HIST CORTESE Hazardous Waste & Substance Site List
HWP EnviroStor Permitted Facilities Listing
HWT Registered Hazardous Waste Transporter Database
MINES Mines Site Location Listing
MWMP Medical Waste Management Program Listing
NPDES NPDES Permits Listing
PEST LIC Pesticide Regulation Licenses Listing
PROC Certified Processors Database
Notify 65 Proposition 65 Records
UIC UIC Listing

UIC GEO UIC GEO (GEOTRACKER)
WASTEWATER PITS Oil Wastewater Pits Listing
WDS Waste Discharge System
WIP Well Investigation Program Case List

MILITARY PRIV SITES MILITARY PRIV SITES (GEOTRACKER)

PROJECT PROJECT (GEOTRACKER)
WDR Waste Discharge Requirements Listing
CIWQS California Integrated Water Quality System

CERS CERS

NON-CASE INFO NON-CASE INFO (GEOTRACKER)

OTHER OIL GAS OTHER OIL & GAS (GEOTRACKER)

PROD WATER PONDS PROD WATER PONDS (GEOTRACKER)

SAMPLING POINT SAMPLING POINT (GEOTRACKER)
WELL STIM PROJ Well Stimulation Project (GEOTRACKER)
MINES MRDS Mineral Resources Data System
HWTS Hazardous Waste Tracking System

EDR HIGH RISK HISTORICAL RECORDS
EDR Exclusive Records
EDR MGP EDR Proprietary Manufactured Gas Plants
F.1.c
Packet Pg. 1035 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

EXECUTIVE SUMMARY
TC6541790.2s EXECUTIVE SUMMARY 7
EDR Hist Auto EDR Exclusive Historical Auto Stations
EDR Hist Cleaner EDR Exclusive Historical Cleaners

EDR RECOVERED GOVERNMENT ARCHIVES
Exclusive Recovered Govt. Archives
RGA LF Recovered Government Archive Solid Waste Facilities List RGA LUST Recovered Government Archive Leaking Underground Storage Tank SURROUNDING SITES: SEARCH RESULTS
Surrounding sites were identified in the following databases.

Elevations have been determined from the USGS Digital Elevation Model and should be evaluated on a relative (not an absolute) basis. Relative elevation information between sites of close proximity should be field verified. Sites with an elevation equal to or higher than the target property have been differentiated below from sites with an elevation lower than the target property.

Page numbers and map identification numbers refer to the EDR Radius Map report where detailed data on individual sites can be reviewed.

Sites listed in bold italics are in multiple databases.

Unmappable (orphan) sites are not considered in the foregoing analysis.

STANDARD ENVIRONMENTAL RECORDS
State- and tribal - equivalent CERCLIS
ENVIROSTOR: The Department of Toxic Substances Control’s (DTSC’s) Site Mitigation and Brownfields Reuse Program’s (SMBRP’s) EnviroStor database identifes sites that have known contamination or sites for which there may be reasons to investigate further. The database includes the following site types: Federal Superfund sites (National Priorities List (NPL)); State Response, including Military Facilities and State Superfund; Voluntary Cleanup; and School sites. EnviroStor provides similar information to the information that was available in CalSites, and provides additional site information, including, but not limited to, identification of formerly-contaminated properties that have been released for reuse, properties where environmental deed restrictions have been recorded to prevent inappropriate land uses, and risk characterization information that is used to assess potential impacts to public health and the environment at contaminated sites.

A review of the ENVIROSTOR list, as provided by EDR, and dated 01/25/2021 has revealed that there is 1 ENVIROSTOR site within approximately 1 mile of the target property.

Equal/Higher Elevation Address Direction / Distance Map ID Page ____________________ ________ ___________________ _____ _____ MARCH AFB RIFLE RANG E 1/4 - 1/2 (0.270 mi.) A2 9
Facility Id: 80000313
Status: Inactive - Needs Evaluation
F.1.c
Packet Pg. 1036 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

EXECUTIVE SUMMARY
TC6541790.2s EXECUTIVE SUMMARY 8

ADDITIONAL ENVIRONMENTAL RECORDS
Other Ascertainable Records
FUDS: The Listing includes locations of Formerly Used Defense Sites Properties where the US Army Corps Of Engineers is actively working or will take necessary cleanup actions.

A review of the FUDS list, as provided by EDR, and dated 02/11/2021 has revealed that there is 1 FUDS site within approximately 1 mile of the target property.

Equal/Higher Elevation Address Direction / Distance Map ID Page ____________________ ________ ___________________ _____ _____ MARCH AFB RIFLE RANG E 1/4 - 1/2 (0.270 mi.) A1 9
F.1.c
Packet Pg. 1037 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

EXECUTIVE SUMMARY
TC6541790.2s EXECUTIVE SUMMARY 9
There were no unmapped sites in this report.

F.1.c
Packet Pg. 1038 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) EDR Inc.
2 2 5 60
2 2 8 40
5 2 0
2 8 0 0
2 4 8 0
2 7 6 0
2 4 40
2 8 0 0
2 7 60
2 800
2600
2 9 60
2 960 2 9 2 0
2 9 20
1 7 6 0
1 5 20
0 8 0
1 4 00
1 6 00
3 0 4 0
1 4 00
3 040
1 400
3 0 0 0
2 9 6 0
2 9 2 0 2 9 2 0
2 8 8 0
2 8 8 0
2 8 8 0
2 8 4 0
2 8 4 0
2 8 4 0
2 8 4 0
2 8 0 0
2 8 0 0
2 8 0 0 2 8 0 0
2 7 6 0
2 7 6 0
2 7 6 0
2 7 6 0
2 7 6 0
2 7 2 0
2 7 20
2 7 2 0
2720
2 7 2 0
2 7 2 0
2 6 8 0
2 6 8 0
2 6 8 0
2 6 8 0
2 6 8 0
2 6 8 0
2 6 8 0
2 6 8 0
2 6 4 0
2 6 4 0
2 6 4
2 0
6 4 0
2 6 4 0
2 6 4 0
2 6 4 0
1 640
2 6 0 0
2 6 0 0
2 6 00
2 6 0 0
2 6 0 0
2 6 0 0
2 6 0 0
2 6 0 0
1 6 00
1 6 0 0
1 4 0 0
2 6 4 2
0 6 0 0
2 5 6 0
2 5 6 0
2 5 6 0
2 5 6 0
2 5 6 0
2 5 6 0
2 5 6 0 2 5 6 0
2 5 2 0
2 5 2 0
2 5 2 0
2 5 2 0
2 5 2 0
2 5 2 0
2 5 2 0
2 5 2 0
2 4 8 0
2 4 8 0
480
2 4 8 0
2 4 8 0
2 4 8 0
2 4 8 0
2 4 4
2 4 4 0
2 4 4 0
2 4 4 0
2 4 4 0 2 4 4 0
2 4 40
2 4 0 0
2 4 0 0
2 4 0 0
2 4 00
2 4 0 0
2 4 0 0
2 4 0 0
2 2 3 6 0
2 3 6 0
2 3 6 0 2 3 6 0
2 3 6 0
2 3 60
2 3 2 0
2 3 2 0
2 3 2 0
2 3 2 0 2 3 2 0
2 3 2 0
2 2 8 0
2 2 8 0
2 2 8 0
2 2 8 0
2 2 8 0
2 2 8 0 2 2 4 0
2 2 4 0
2 2 4 0
2 2 4 0
2 2 4 0
2 2 4 0
2 2 0 0
2 2 0 0
2 2 0 0
2 2 0 0
2 2 0 0
2 2 0 0
2 1 6 0
2 1 60
2 1
2 1 6 0
2 1 6 0
2 1 6 0
2 1 20
2 1
2 1 2 0
2 1 20
2 1 2 0
2 1 2 0
2 0 8 0
2 0
2 0 8 0
2 0 8 0
2 0 8 0
2 0 4 0
2 0 4 0
2 0 4 0
2 0 4 0
2 0 4 0
2 0 0 0
2 0 0 0
2 0 0 0
2 0 0 0
2 0 0 0
1 1 9 6 0
1 9 6 0
1 9 6 0
1 9 6 0
1 9 20
1 9 2 0
1 9 2 0 1 9 2 0
1 8 8 0
1 8 8 0
1 8 8 0
1 8 8 0
1 1 8 4 0
1 8 40 1 8 4 0
1 8 4 0
1 8 0 0
1 8 0 0
1 8 0 0
1 8 0 0
1 7 6 0
1 7 6 0
1 7 6 0
1 1 6 4 0
1 600
1 7 2 0
1 7 2 0
1 7 2 0
1 7 2 0
1 7 2 0
1 6 4 0
1 6 8 0
1 6 8 0
1 6 8 0
1 6 8 0
1 6 8 0
1 6 4 0
1 6 00
1 6 0 0
1 6 0 0
1 1 6 4 0
1 6 4 0 1 6 4 0
1 6 4 0
1 6 4 0
1 5 6 0
1 5 60
1 5 60
1 5 6 0
1 6 0 0
1 6 0 0
1 6 0 0
1 6 0 0
1 6 0 0
1 1 6 0
1 5 6 0
1 5 6 0
1 5 60
1 5 60
1 5 60
1 5 6 0
1 2 0 0
1 2 4 0
1 2 4 0
1 2 8 0
1 2 8 0
80 1 3 2 0
1 3 2 0
3 2 0
1 3 2 0
1 3 6 0
1 3 6 0
1 3 6 0
1 3 60
1 4 0 0
1 4 0 0
1 4 0 0
1 4 0 0
1 4 4 0
1 4 4 0
1 4 4 0
1 4 4 0
1 4 4 0
1 4 40
1 4 8 0
1 4 80
1 4 80
1 4 8 0 1 4 8
1 0
4 8 0
1 5 2 0
1 5 20
1 5 20
1 5 2 0
1 5 2 0
1 5 20
1 5 2 0
1 5 2 0
5 2 0
F.1.c
Packet Pg. 1039 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) EDR Inc.
2800
2680
2680
2640
1 640
2600
16 00
1600
1 6 00
2560
2520
2520
2480
2480
440
2400
2360
320
2320
2280
2240
2200 2160
2120
2080
2040
1960
1960
1920
1880
1840
1800
1760
1720
1680
1680
1 640
1640
1560
1560
1560
1 5 20
F.1.c
Packet Pg. 1040 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

MAP FINDINGS SUMMARY
Search
Distance Target Total
Database Property (Miles) < 1/8 1/8 - 1/4 1/4 - 1/2 1/2 - 1 > 1 Plotted

STANDARD ENVIRONMENTAL RECORDS
Federal NPL site list
NPL 1.000 0 0 0 0 NR 0
Proposed NPL 1.000 0 0 0 0 NR 0
NPL LIENS 1.000 0 0 0 0 NR 0
Federal Delisted NPL site list
Delisted NPL 1.000 0 0 0 0 NR 0
Federal CERCLIS list
FEDERAL FACILITY 0.500 0 0 0 NR NR 0
SEMS 0.500 0 0 0 NR NR 0
Federal CERCLIS NFRAP site list
SEMS-ARCHIVE 0.500 0 0 0 NR NR 0
Federal RCRA CORRACTS facilities list
CORRACTS 1.000 0 0 0 0 NR 0
Federal RCRA non-CORRACTS TSD facilities list
RCRA-TSDF 0.500 0 0 0 NR NR 0
Federal RCRA generators list
RCRA-LQG 0.250 0 0 NR NR NR 0
RCRA-SQG 0.250 0 0 NR NR NR 0
RCRA-VSQG 0.250 0 0 NR NR NR 0
Federal institutional controls /
engineering controls registries
LUCIS 0.500 0 0 0 NR NR 0
US ENG CONTROLS 0.500 0 0 0 NR NR 0
US INST CONTROLS 0.500 0 0 0 NR NR 0
Federal ERNS list
ERNS 0.001 0 NR NR NR NR 0
State- and tribal - equivalent NPL
RESPONSE 1.000 0 0 0 0 NR 0
State- and tribal - equivalent CERCLIS
ENVIROSTOR 1.000 0 0 1 0 NR 1
State and tribal landfill and/or
solid waste disposal site lists
SWF/LF 0.500 0 0 0 NR NR 0
State and tribal leaking storage tank lists
LUST 0.500 0 0 0 NR NR 0
TC6541790.2s Page 4
F.1.c
Packet Pg. 1041 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

MAP FINDINGS SUMMARY
Search
Distance Target Total
Database Property (Miles) < 1/8 1/8 - 1/4 1/4 - 1/2 1/2 - 1 > 1 Plotted INDIAN LUST 0.500 0 0 0 NR NR 0
CPS-SLIC 0.500 0 0 0 NR NR 0
State and tribal registered storage tank lists
FEMA UST 0.250 0 0 NR NR NR 0
UST 0.250 0 0 NR NR NR 0
AST 0.250 0 0 NR NR NR 0
INDIAN UST 0.250 0 0 NR NR NR 0
State and tribal voluntary cleanup sites
VCP 0.500 0 0 0 NR NR 0
INDIAN VCP 0.500 0 0 0 NR NR 0
State and tribal Brownfields sites
BROWNFIELDS 0.500 0 0 0 NR NR 0

ADDITIONAL ENVIRONMENTAL RECORDS
Local Brownfield lists
US BROWNFIELDS 0.500 0 0 0 NR NR 0
Local Lists of Landfill / Solid
Waste Disposal Sites
WMUDS/SWAT 0.500 0 0 0 NR NR 0
SWRCY 0.500 0 0 0 NR NR 0
HAULERS 0.001 0 NR NR NR NR 0
INDIAN ODI 0.500 0 0 0 NR NR 0
ODI 0.500 0 0 0 NR NR 0
DEBRIS REGION 9 0.500 0 0 0 NR NR 0
IHS OPEN DUMPS 0.500 0 0 0 NR NR 0
Local Lists of Hazardous waste /
Contaminated Sites
US HIST CDL 0.001 0 NR NR NR NR 0
HIST Cal-Sites 1.000 0 0 0 0 NR 0
SCH 0.250 0 0 NR NR NR 0
CDL 0.001 0 NR NR NR NR 0
Toxic Pits 1.000 0 0 0 0 NR 0
CERS HAZ WASTE 0.250 0 0 NR NR NR 0
US CDL 0.001 0 NR NR NR NR 0
PFAS 0.500 0 0 0 NR NR 0
Local Lists of Registered Storage Tanks
SWEEPS UST 0.250 0 0 NR NR NR 0
HIST UST 0.250 0 0 NR NR NR 0
CERS TANKS 0.250 0 0 NR NR NR 0
CA FID UST 0.250 0 0 NR NR NR 0
Local Land Records
LIENS 0.001 0 NR NR NR NR 0
TC6541790.2s Page 5
F.1.c
Packet Pg. 1042 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

MAP FINDINGS SUMMARY
Search
Distance Target Total
Database Property (Miles) < 1/8 1/8 - 1/4 1/4 - 1/2 1/2 - 1 > 1 Plotted LIENS 2 0.001 0 NR NR NR NR 0
DEED 0.500 0 0 0 NR NR 0
Records of Emergency Release Reports
HMIRS 0.001 0 NR NR NR NR 0
CHMIRS 0.001 0 NR NR NR NR 0
LDS 0.001 0 NR NR NR NR 0
MCS 0.001 0 NR NR NR NR 0
SPILLS 90 0.001 0 NR NR NR NR 0
Other Ascertainable Records
RCRA NonGen / NLR 0.250 0 0 NR NR NR 0
FUDS 1.000 0 0 1 0 NR 1
DOD 1.000 0 0 0 0 NR 0
SCRD DRYCLEANERS 0.500 0 0 0 NR NR 0
US FIN ASSUR 0.001 0 NR NR NR NR 0
EPA WATCH LIST 0.001 0 NR NR NR NR 0
2020 COR ACTION 0.250 0 0 NR NR NR 0
TSCA 0.001 0 NR NR NR NR 0
TRIS 0.001 0 NR NR NR NR 0
SSTS 0.001 0 NR NR NR NR 0
ROD 1.000 0 0 0 0 NR 0
RMP 0.001 0 NR NR NR NR 0
RAATS 0.001 0 NR NR NR NR 0
PRP 0.001 0 NR NR NR NR 0
PADS 0.001 0 NR NR NR NR 0
ICIS 0.001 0 NR NR NR NR 0
FTTS 0.001 0 NR NR NR NR 0
MLTS 0.001 0 NR NR NR NR 0
COAL ASH DOE 0.001 0 NR NR NR NR 0
COAL ASH EPA 0.500 0 0 0 NR NR 0
PCB TRANSFORMER 0.001 0 NR NR NR NR 0
RADINFO 0.001 0 NR NR NR NR 0
HIST FTTS 0.001 0 NR NR NR NR 0
DOT OPS 0.001 0 NR NR NR NR 0
CONSENT 1.000 0 0 0 0 NR 0
INDIAN RESERV 1.000 0 0 0 0 NR 0
FUSRAP 1.000 0 0 0 0 NR 0
UMTRA 0.500 0 0 0 NR NR 0
LEAD SMELTERS 0.001 0 NR NR NR NR 0
US AIRS 0.001 0 NR NR NR NR 0
US MINES 0.250 0 0 NR NR NR 0
ABANDONED MINES 0.250 0 0 NR NR NR 0
FINDS 0.001 0 NR NR NR NR 0
ECHO 0.001 0 NR NR NR NR 0
UXO 1.000 0 0 0 0 NR 0
DOCKET HWC 0.001 0 NR NR NR NR 0
FUELS PROGRAM 0.250 0 0 NR NR NR 0
CA BOND EXP. PLAN 1.000 0 0 0 0 NR 0
Cortese 0.500 0 0 0 NR NR 0
CUPA Listings 0.250 0 0 NR NR NR 0
TC6541790.2s Page 6
F.1.c
Packet Pg. 1043 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

MAP FINDINGS SUMMARY
Search
Distance Target Total
Database Property (Miles) < 1/8 1/8 - 1/4 1/4 - 1/2 1/2 - 1 > 1 Plotted DRYCLEANERS 0.250 0 0 NR NR NR 0
EMI 0.001 0 NR NR NR NR 0
ENF 0.001 0 NR NR NR NR 0
Financial Assurance 0.001 0 NR NR NR NR 0
HAZNET 0.001 0 NR NR NR NR 0
ICE 0.001 0 NR NR NR NR 0
HIST CORTESE 0.500 0 0 0 NR NR 0
HWP 1.000 0 0 0 0 NR 0
HWT 0.250 0 0 NR NR NR 0
MINES 0.250 0 0 NR NR NR 0
MWMP 0.250 0 0 NR NR NR 0
NPDES 0.001 0 NR NR NR NR 0
PEST LIC 0.001 0 NR NR NR NR 0
PROC 0.500 0 0 0 NR NR 0
Notify 65 1.000 0 0 0 0 NR 0
UIC 0.001 0 NR NR NR NR 0
UIC GEO 0.001 0 NR NR NR NR 0
WASTEWATER PITS 0.500 0 0 0 NR NR 0
WDS 0.001 0 NR NR NR NR 0
WIP 0.250 0 0 NR NR NR 0
MILITARY PRIV SITES 0.001 0 NR NR NR NR 0
PROJECT 0.001 0 NR NR NR NR 0
WDR 0.001 0 NR NR NR NR 0
CIWQS 0.001 0 NR NR NR NR 0
CERS 0.001 0 NR NR NR NR 0
NON-CASE INFO 0.001 0 NR NR NR NR 0
OTHER OIL GAS 0.001 0 NR NR NR NR 0
PROD WATER PONDS 0.001 0 NR NR NR NR 0
SAMPLING POINT 0.001 0 NR NR NR NR 0
WELL STIM PROJ 0.001 0 NR NR NR NR 0
MINES MRDS 0.001 0 NR NR NR NR 0
HWTS TP NR NR NR NR NR 0

EDR HIGH RISK HISTORICAL RECORDS
EDR Exclusive Records
EDR MGP 1.000 0 0 0 0 NR 0
EDR Hist Auto 0.125 0 NR NR NR NR 0
EDR Hist Cleaner 0.125 0 NR NR NR NR 0

EDR RECOVERED GOVERNMENT ARCHIVES
Exclusive Recovered Govt. Archives
RGA LF 0.001 0 NR NR NR NR 0
RGA LUST 0.001 0 NR NR NR NR 0
- Totals -- 0 0 0 2 0 0 2
TC6541790.2s Page 7
F.1.c
Packet Pg. 1044 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

MAP FINDINGS SUMMARY
Search
Distance Target Total
Database Property (Miles) < 1/8 1/8 - 1/4 1/4 - 1/2 1/2 - 1 > 1 Plotted NOTES:

TP = Target Property
NR = Not Requested at this Search Distance
Sites may be listed in more than one database
TC6541790.2s Page 8
F.1.c
Packet Pg. 1045 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Map ID MAP FINDINGS
Direction
Distance EDR ID Number
Elevation Site Database(s) EPA ID Number
Longitude: -117.28749999999999
Latitude: 33.958333330000002
Y Coord: 33.958435059000003
X Coord: -117.28747559
Feature Description: Not reported
Project Required: No
Property History: Not reported
NPL Status: Not on the NPL
Has Projects: No
Eligibility: Ineligible
EMS Map Link: https://fudsportal.usace.army.mil/ems/ems/inventory/map/map?id=53550 Current Owner: Not reported
Status: Properties without projects
USACE District: Los Angeles District (SPL)
USACE Division: SPD
Object ID: 1800
County: RIVERSIDE
State: CA
City: RIVERSIDE
FUDS Number: J09CA0476
Name: MARCH AFB RIFLE RANGE
Congressional District Number: 41
Installation ID: CA99799F551400
EPA Region: 9
FUDS:
1428 ft. Site 1 of 2 in cluster A

0.270 mi.

Relative:

Higher
Actual:
2109 ft.
1/4-1/2 RIVERSIDE, CA
East N/A
A1 MARCH AFB RIFLE RANGE FUDS 1024903587
Restricted Use: NO
Special Program: Not reported
Senate: 31
Assembly: 61
Division Branch: Cleanup Cypress
Supervisor: Douglas Bautista
Program Manager: Not reported
Lead Agency: SMBRP
Regulatory Agencies: SMBRP
NPL: NO
Acres: 0
Site Type Detailed: FUDS
Site Type: Military Evaluation
Site Code: Not reported
Status Date: 07/01/2005
Status: Inactive - Needs Evaluation
Facility ID: 80000313
City,State,Zip: RIVERSIDE, CA
Address: Not reported
Name: MARCH AFB RIFLE RANGE
ENVIROSTOR:
1428 ft. Site 2 of 2 in cluster A

0.270 mi.

Relative:

Higher
Actual:
2109 ft.
1/4-1/2 RIVERSIDE, CA
East N/A
A2 MARCH AFB RIFLE RANGE ENVIROSTOR S107736670
TC6541790.2s Page 9
F.1.c
Packet Pg. 1046 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Map ID MAP FINDINGS
Direction
Distance EDR ID Number
Elevation Site Database(s) EPA ID Number
Schedule Revised Date: Not reported
Schedule Due Date: Not reported
Schedule Document Type: Not reported
Schedule Sub Area Name: Not reported
Schedule Area Name: Not reported
Future Due Date: Not reported
Future Document Type: Not reported
Future Sub Area Name: Not reported
Future Area Name: Not reported
Comments: Not reported
Completed Date: 09/28/1992
Completed Document Type: Inventory Project Report (INPR) Completed Sub Area Name: Not reported
Completed Area Name: PROJECT WIDE
Completed Info:

Alias Type: Envirostor ID Number
Alias Name: 80000313
Alias Type: INPR
Alias Name: J09CA0476
Alias Type: Federal Facility ID
Alias Name: CA99799F551400
Potential Description: NONE SPECIFIED
Confirmed COC: NONE SPECIFIED
Potential COC: Explosives (UXO, MEC
Past Use: NONE SPECIFIED
APN: NONE SPECIFIED
Longitude: -117.2875
Latitude: 33.95833
Funding: DERA
Site Mgmt Req: NONE SPECIFIED
MARCH AFB RIFLE RANGE (Continued) S107736670
TC6541790.2s Page 10
F.1.c
Packet Pg. 1047 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

ORPHAN SUMMARY
City EDR ID Site Name Site Address Zip Database(s)Count: 0 records.

NO SITES FOUND
TC6541790.2s Page 11
F.1.c
Packet Pg. 1048
Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) To maintain currency of the following federal and state databases, EDR contacts the appropriate governmental agency on a monthly or quarterly basis, as required.

Number of Days to Update: Provides confirmation that EDR is reporting records that have been updated within 90 days from the date the government agency made the information available to the public.

STANDARD ENVIRONMENTAL RECORDS
Federal NPL site list
NPL: National Priority List
National Priorities List (Superfund). The NPL is a subset of CERCLIS and identifies over 1,200 sites for priority cleanup under the Superfund Program. NPL sites may encompass relatively large areas. As such, EDR provides polygon coverage for over 1,000 NPL site boundaries produced by EPA’s Environmental Photographic Interpretation Center (EPIC) and regional EPA offices.

EPA’s Environmental Photographic Interpretation Center (EPIC) Telephone: 202-564-7333
EPA Region 1 EPA Region 6
Telephone 617-918-1143 Telephone: 214-655-6659
EPA Region 3 EPA Region 7
Telephone 215-814-5418 Telephone: 913-551-7247
EPA Region 4 EPA Region 8
Telephone 404-562-8033 Telephone: 303-312-6774
EPA Region 5 EPA Region 9
Telephone 312-886-6686 Telephone: 415-947-4246
EPA Region 10
Telephone 206-553-8665
Proposed NPL: Proposed National Priority List Sites
A site that has been proposed for listing on the National Priorities List through the issuance of a proposed rule in the Federal Register. EPA then accepts public comments on the site, responds to the comments, and places on the NPL those sites that continue to meet the requirements for listing.

Date of Government Version: 04/27/2021
Date Data Arrived at EDR: 05/03/2021
Date Made Active in Reports: 05/19/2021
Number of Days to Update: 16
Source: EPA
Telephone: N/A
Last EDR Contact: 06/04/2021
Next Scheduled EDR Contact: 07/12/2021
Data Release Frequency: Quarterly
NPL LIENS: Federal Superfund Liens
Federal Superfund Liens. Under the authority granted the USEPA by CERCLA of 1980, the USEPA has the authority to file liens against real property in order to recover remedial action expenditures or when the property owner received notification of potential liability. USEPA compiles a listing of filed notices of Superfund Liens.

TC6541790.2s Page GR-1

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
F.1.c
Packet Pg. 1049 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Date of Government Version: 10/15/1991
Date Data Arrived at EDR: 02/02/1994
Date Made Active in Reports: 03/30/1994
Number of Days to Update: 56
Source: EPA
Telephone: 202-564-4267
Last EDR Contact: 08/15/2011
Next Scheduled EDR Contact: 11/28/2011
Data Release Frequency: No Update Planned
Federal Delisted NPL site list
Delisted NPL: National Priority List Deletions
The National Oil and Hazardous Substances Pollution Contingency Plan (NCP) establishes the criteria that the EPA uses to delete sites from the NPL. In accordance with 40 CFR 300.425.(e), sites may be deleted from the NPL where no further response is appropriate.

Date of Government Version: 04/27/2021
Date Data Arrived at EDR: 05/03/2021
Date Made Active in Reports: 05/19/2021
Number of Days to Update: 16
Source: EPA
Telephone: N/A
Last EDR Contact: 06/04/2021
Next Scheduled EDR Contact: 07/12/2021
Data Release Frequency: Quarterly
Federal CERCLIS list
FEDERAL FACILITY: Federal Facility Site Information listing A listing of National Priority List (NPL) and Base Realignment and Closure (BRAC) sites found in the Comprehensive Environmental Response, Compensation and Liability Information System (CERCLIS) Database where EPA Federal Facilities Restoration and Reuse Office is involved in cleanup activities.

Date of Government Version: 04/03/2019
Date Data Arrived at EDR: 04/05/2019
Date Made Active in Reports: 05/14/2019
Number of Days to Update: 39
Source: Environmental Protection Agency
Telephone: 703-603-8704
Last EDR Contact: 03/30/2021
Next Scheduled EDR Contact: 07/12/2021
Data Release Frequency: Varies
SEMS: Superfund Enterprise Management System
SEMS (Superfund Enterprise Management System) tracks hazardous waste sites, potentially hazardous waste sites, and remedial activities performed in support of EPA’s Superfund Program across the United States. The list was formerly know as CERCLIS, renamed to SEMS by the EPA in 2015. The list contains data on potentially hazardous waste sites that have been reported to the USEPA by states, municipalities, private companies and private persons, pursuant to Section 103 of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA).

This dataset also contains sites which are either proposed to or on the National Priorities List (NPL) and the sites which are in the screening and assessment phase for possible inclusion on the NPL.

Date of Government Version: 04/27/2021
Date Data Arrived at EDR: 05/03/2021
Date Made Active in Reports: 05/19/2021
Number of Days to Update: 16
Source: EPA
Telephone: 800-424-9346
Last EDR Contact: 06/04/2021
Next Scheduled EDR Contact: 07/26/2021
Data Release Frequency: Quarterly
Federal CERCLIS NFRAP site list
SEMS-ARCHIVE: Superfund Enterprise Management System Archive TC6541790.2s Page GR-2

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
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Packet Pg. 1050 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) SEMS-ARCHIVE (Superfund Enterprise Management System Archive) tracks sites that have no further interest under the Federal Superfund Program based on available information. The list was formerly known as the CERCLIS-NFRAP, renamed to SEMS ARCHIVE by the EPA in 2015. EPA may perform a minimal level of assessment work at a site while it is archived if site conditions change and/or new information becomes available. Archived sites have been removed and archived from the inventory of SEMS sites. Archived status indicates that, to the best of EPA’s knowledge, assessment at a site has been completed and that EPA has determined no further steps will be taken to list the site on the National Priorities List (NPL), unless information indicates this decision was not appropriate or other considerations require a recommendation for listing at a later time. The decision does not necessarily mean that there is no hazard associated with a given site; it only means that. based upon available information, the location is not judged to be potential NPL site.

Date of Government Version: 04/27/2021
Date Data Arrived at EDR: 05/03/2021
Date Made Active in Reports: 05/19/2021
Number of Days to Update: 16
Source: EPA
Telephone: 800-424-9346
Last EDR Contact: 06/04/2021
Next Scheduled EDR Contact: 07/26/2021
Data Release Frequency: Quarterly
Federal RCRA CORRACTS facilities list
CORRACTS: Corrective Action Report
CORRACTS identifies hazardous waste handlers with RCRA corrective action activity.

Date of Government Version: 03/22/2021
Date Data Arrived at EDR: 03/23/2021
Date Made Active in Reports: 05/19/2021
Number of Days to Update: 57
Source: EPA
Telephone: 800-424-9346
Last EDR Contact: 03/23/2021
Next Scheduled EDR Contact: 07/05/2021
Data Release Frequency: Quarterly
Federal RCRA non-CORRACTS TSD facilities list
RCRA-TSDF: RCRA - Treatment, Storage and Disposal
RCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The database includes selective information on sites which generate, transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Transporters are individuals or entities that move hazardous waste from the generator offsite to a facility that can recycle, treat, store, or dispose of the waste. TSDFs treat, store, or dispose of the waste.

Date of Government Version: 03/22/2021
Date Data Arrived at EDR: 03/23/2021
Date Made Active in Reports: 05/19/2021
Number of Days to Update: 57
Source: Environmental Protection Agency
Telephone: (415) 495-8895
Last EDR Contact: 03/23/2021
Next Scheduled EDR Contact: 07/05/2021
Data Release Frequency: Quarterly
Federal RCRA generators list
RCRA-LQG: RCRA - Large Quantity Generators
RCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The database includes selective information on sites which generate, transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Large quantity generators (LQGs) generate over 1,000 kilograms (kg) of hazardous waste, or over 1 kg of acutely hazardous waste per month.

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
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Packet Pg. 1051 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) RCRA-SQG: RCRA - Small Quantity Generators
RCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The database includes selective information on sites which generate, transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Small quantity generators (SQGs) generate between 100 kg and 1,000 kg of hazardous waste per month.

Date of Government Version: 03/22/2021
Date Data Arrived at EDR: 03/23/2021
Date Made Active in Reports: 05/19/2021
Number of Days to Update: 57
Source: Environmental Protection Agency
Telephone: (415) 495-8895
Last EDR Contact: 03/23/2021
Next Scheduled EDR Contact: 07/05/2021
Data Release Frequency: Quarterly
RCRA-VSQG: RCRA - Very Small Quantity Generators (Formerly Conditionally Exempt Small Quantity Generators) RCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The database includes selective information on sites which generate, transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Very small quantity generators (VSQGs) generate less than 100 kg of hazardous waste, or less than 1 kg of acutely hazardous waste per month.

Date of Government Version: 02/09/2021
Date Data Arrived at EDR: 02/11/2021
Date Made Active in Reports: 03/22/2021
Number of Days to Update: 39
Source: Department of the Navy
Telephone: 843-820-7326
Last EDR Contact: 05/05/2021
Next Scheduled EDR Contact: 08/23/2021
Data Release Frequency: Varies
US ENG CONTROLS: Engineering Controls Sites List
A listing of sites with engineering controls in place. Engineering controls include various forms of caps, building foundations, liners, and treatment methods to create pathway elimination for regulated substances to enter environmental media or effect human health.

Date of Government Version: 02/22/2021
Date Data Arrived at EDR: 02/23/2021
Date Made Active in Reports: 05/19/2021
Number of Days to Update: 85
Source: Environmental Protection Agency
Telephone: 703-603-0695
Last EDR Contact: 05/21/2021
Next Scheduled EDR Contact: 09/06/2021
Data Release Frequency: Varies
US INST CONTROLS: Institutional Controls Sites List
A listing of sites with institutional controls in place. Institutional controls include administrative measures, such as groundwater use restrictions, construction restrictions, property use restrictions, and post remediation care requirements intended to prevent exposure to contaminants remaining on site. Deed restrictions are generally required as part of the institutional controls.

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
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Packet Pg. 1052 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Federal ERNS list
ERNS: Emergency Response Notification System
Emergency Response Notification System. ERNS records and stores information on reported releases of oil and hazardous substances.

Date of Government Version: 12/14/2020
Date Data Arrived at EDR: 12/15/2020
Date Made Active in Reports: 12/22/2020
Number of Days to Update: 7
Source: National Response Center, United States Coast Guard Telephone: 202-267-2180
Last EDR Contact: 12/15/2020
Next Scheduled EDR Contact: 07/05/2021
Data Release Frequency: Quarterly
State- and tribal - equivalent NPL
RESPONSE: State Response Sites
Identifies confirmed release sites where DTSC is involved in remediation, either in a lead or oversight capacity.

These confirmed release sites are generally high-priority and high potential risk.

Date of Government Version: 01/25/2021
Date Data Arrived at EDR: 01/26/2021
Date Made Active in Reports: 04/13/2021
Number of Days to Update: 77
Source: Department of Toxic Substances Control
Telephone: 916-323-3400
Last EDR Contact: 04/23/2021
Next Scheduled EDR Contact: 08/09/2021
Data Release Frequency: Quarterly
State- and tribal - equivalent CERCLIS
ENVIROSTOR: EnviroStor Database
The Department of Toxic Substances Control’s (DTSC’s) Site Mitigation and Brownfields Reuse Program’s (SMBRP’s) EnviroStor database identifes sites that have known contamination or sites for which there may be reasons to investigate further. The database includes the following site types: Federal Superfund sites (National Priorities List (NPL)); State Response, including Military Facilities and State Superfund; Voluntary Cleanup; and School sites. EnviroStor provides similar information to the information that was available in CalSites, and provides additional site information, including, but not limited to, identification of formerly-contaminated properties that have been released for reuse, properties where environmental deed restrictions have been recorded to prevent inappropriate land uses, and risk characterization information that is used to assess potential impacts to public health and the environment at contaminated sites.

Date of Government Version: 02/08/2021
Date Data Arrived at EDR: 02/09/2021
Date Made Active in Reports: 05/03/2021
Number of Days to Update: 83
Source: Department of Resources Recycling and Recovery
Telephone: 916-341-6320
Last EDR Contact: 05/11/2021
Next Scheduled EDR Contact: 08/23/2021
Data Release Frequency: Quarterly
State and tribal leaking storage tank lists
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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
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Packet Pg. 1053 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) LUST: Leaking Underground Fuel Tank Report (GEOTRACKER) Leaking Underground Storage Tank (LUST) Sites included in GeoTracker. GeoTracker is the Water Boards data management system for sites that impact, or have the potential to impact, water quality in California, with emphasis on groundwater.

Date of Government Version: 03/08/2021
Date Data Arrived at EDR: 03/09/2021
Date Made Active in Reports: 03/30/2021
Number of Days to Update: 21
Source: State Water Resources Control Board
Telephone: see region list
Last EDR Contact: 06/03/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Quarterly
LUST REG 4: Underground Storage Tank Leak List
Los Angeles, Ventura counties. For more current information, please refer to the State Water Resources Control Board’s LUST database.

Date of Government Version: 09/07/2004
Date Data Arrived at EDR: 09/07/2004
Date Made Active in Reports: 10/12/2004
Number of Days to Update: 35
Source: California Regional Water Quality Control Board Los Angeles Region (4) Telephone: 213-576-6710
Last EDR Contact: 09/06/2011
Next Scheduled EDR Contact: 12/19/2011
Data Release Frequency: No Update Planned
LUST REG 3: Leaking Underground Storage Tank Database
Leaking Underground Storage Tank locations. Monterey, San Benito, San Luis Obispo, Santa Barbara, Santa Cruz counties.

Date of Government Version: 05/19/2003
Date Data Arrived at EDR: 05/19/2003
Date Made Active in Reports: 06/02/2003
Number of Days to Update: 14
Source: California Regional Water Quality Control Board Central Coast Region (3) Telephone: 805-542-4786
Last EDR Contact: 07/18/2011
Next Scheduled EDR Contact: 10/31/2011
Data Release Frequency: No Update Planned
LUST REG 2: Fuel Leak List
Leaking Underground Storage Tank locations. Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, Solano, Sonoma counties.

Date of Government Version: 09/30/2004
Date Data Arrived at EDR: 10/20/2004
Date Made Active in Reports: 11/19/2004
Number of Days to Update: 30
Source: California Regional Water Quality Control Board San Francisco Bay Region (2) Telephone: 510-622-2433
Last EDR Contact: 09/19/2011
Next Scheduled EDR Contact: 01/02/2012
Data Release Frequency: No Update Planned
LUST REG 1: Active Toxic Site Investigation
Del Norte, Humboldt, Lake, Mendocino, Modoc, Siskiyou, Sonoma, Trinity counties. For more current information, please refer to the State Water Resources Control Board’s LUST database.

Date of Government Version: 02/01/2001
Date Data Arrived at EDR: 02/28/2001
Date Made Active in Reports: 03/29/2001
Number of Days to Update: 29
Source: California Regional Water Quality Control Board North Coast (1) Telephone: 707-570-3769
Last EDR Contact: 08/01/2011
Next Scheduled EDR Contact: 11/14/2011
Data Release Frequency: No Update Planned
LUST REG 6V: Leaking Underground Storage Tank Case Listing Leaking Underground Storage Tank locations. Inyo, Kern, Los Angeles, Mono, San Bernardino counties.

Date of Government Version: 06/07/2005
Date Data Arrived at EDR: 06/07/2005
Date Made Active in Reports: 06/29/2005
Number of Days to Update: 22
Source: California Regional Water Quality Control Board Victorville Branch Office (6) Telephone: 760-241-7365
Last EDR Contact: 09/12/2011
Next Scheduled EDR Contact: 12/26/2011
Data Release Frequency: No Update Planned
LUST REG 6L: Leaking Underground Storage Tank Case Listing For more current information, please refer to the State Water Resources Control Board’s LUST database.

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Packet Pg. 1054 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Date of Government Version: 09/09/2003
Date Data Arrived at EDR: 09/10/2003
Date Made Active in Reports: 10/07/2003
Number of Days to Update: 27
Source: California Regional Water Quality Control Board Lahontan Region (6) Telephone: 530-542-5572
Last EDR Contact: 09/12/2011
Next Scheduled EDR Contact: 12/26/2011
Data Release Frequency: No Update Planned
LUST REG 7: Leaking Underground Storage Tank Case Listing Leaking Underground Storage Tank locations. Imperial, Riverside, San Diego, Santa Barbara counties.

Date of Government Version: 02/26/2004
Date Data Arrived at EDR: 02/26/2004
Date Made Active in Reports: 03/24/2004
Number of Days to Update: 27
Source: California Regional Water Quality Control Board Colorado River Basin Region (7) Telephone: 760-776-8943
Last EDR Contact: 08/01/2011
Next Scheduled EDR Contact: 11/14/2011
Data Release Frequency: No Update Planned
LUST REG 8: Leaking Underground Storage Tanks
California Regional Water Quality Control Board Santa Ana Region (8). For more current information, please refer to the State Water Resources Control Board’s LUST database.

Date of Government Version: 02/14/2005
Date Data Arrived at EDR: 02/15/2005
Date Made Active in Reports: 03/28/2005
Number of Days to Update: 41
Source: California Regional Water Quality Control Board Santa Ana Region (8) Telephone: 909-782-4496
Last EDR Contact: 08/15/2011
Next Scheduled EDR Contact: 11/28/2011
Data Release Frequency: No Update Planned
LUST REG 9: Leaking Underground Storage Tank Report
Orange, Riverside, San Diego counties. For more current information, please refer to the State Water Resources Control Board’s LUST database.

Date of Government Version: 03/01/2001
Date Data Arrived at EDR: 04/23/2001
Date Made Active in Reports: 05/21/2001
Number of Days to Update: 28
Source: California Regional Water Quality Control Board San Diego Region (9) Telephone: 858-637-5595
Last EDR Contact: 09/26/2011
Next Scheduled EDR Contact: 01/09/2012
Data Release Frequency: No Update Planned
LUST REG 5: Leaking Underground Storage Tank Database
Leaking Underground Storage Tank locations. Alameda, Alpine, Amador, Butte, Colusa, Contra Costa, Calveras, El Dorado, Fresno, Glenn, Kern, Kings, Lake, Lassen, Madera, Mariposa, Merced, Modoc, Napa, Nevada, Placer, Plumas, Sacramento, San Joaquin, Shasta, Solano, Stanislaus, Sutter, Tehama, Tulare, Tuolumne, Yolo, Yuba counties.

Date of Government Version: 07/01/2008
Date Data Arrived at EDR: 07/22/2008
Date Made Active in Reports: 07/31/2008
Number of Days to Update: 9
Source: California Regional Water Quality Control Board Central Valley Region (5) Telephone: 916-464-4834
Last EDR Contact: 07/01/2011
Next Scheduled EDR Contact: 10/17/2011
Data Release Frequency: No Update Planned
INDIAN LUST R10: Leaking Underground Storage Tanks on Indian Land LUSTs on Indian land in Alaska, Idaho, Oregon and Washington.

Date of Government Version: 11/12/2020
Date Data Arrived at EDR: 12/16/2020
Date Made Active in Reports: 03/12/2021
Number of Days to Update: 86
Source: EPA Region 10
Telephone: 206-553-2857
Last EDR Contact: 06/11/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
INDIAN LUST R5: Leaking Underground Storage Tanks on Indian Land Leaking underground storage tanks located on Indian Land in Michigan, Minnesota and Wisconsin.

Date of Government Version: 10/07/2020
Date Data Arrived at EDR: 12/16/2020
Date Made Active in Reports: 03/12/2021
Number of Days to Update: 86
Source: EPA, Region 5
Telephone: 312-886-7439
Last EDR Contact: 06/11/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
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Packet Pg. 1055 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) INDIAN LUST R9: Leaking Underground Storage Tanks on Indian Land LUSTs on Indian land in Arizona, California, New Mexico and Nevada Date of Government Version: 10/01/2020
Date Data Arrived at EDR: 12/16/2020
Date Made Active in Reports: 03/12/2021
Number of Days to Update: 86
Source: Environmental Protection Agency
Telephone: 415-972-3372
Last EDR Contact: 06/11/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
INDIAN LUST R8: Leaking Underground Storage Tanks on Indian Land LUSTs on Indian land in Colorado, Montana, North Dakota, South Dakota, Utah and Wyoming.

Date of Government Version: 10/09/2020
Date Data Arrived at EDR: 12/16/2020
Date Made Active in Reports: 03/12/2021
Number of Days to Update: 86
Source: EPA Region 8
Telephone: 303-312-6271
Last EDR Contact: 06/11/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
INDIAN LUST R7: Leaking Underground Storage Tanks on Indian Land LUSTs on Indian land in Iowa, Kansas, and Nebraska
Date of Government Version: 09/30/2020
Date Data Arrived at EDR: 12/22/2020
Date Made Active in Reports: 03/12/2021
Number of Days to Update: 80
Source: EPA Region 7
Telephone: 913-551-7003
Last EDR Contact: 06/11/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
INDIAN LUST R4: Leaking Underground Storage Tanks on Indian Land LUSTs on Indian land in Florida, Mississippi and North Carolina.

Date of Government Version: 10/02/2020
Date Data Arrived at EDR: 12/18/2020
Date Made Active in Reports: 03/12/2021
Number of Days to Update: 84
Source: EPA Region 4
Telephone: 404-562-8677
Last EDR Contact: 06/11/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
INDIAN LUST R1: Leaking Underground Storage Tanks on Indian Land A listing of leaking underground storage tank locations on Indian Land.

Date of Government Version: 10/01/2020
Date Data Arrived at EDR: 12/16/2020
Date Made Active in Reports: 03/12/2021
Number of Days to Update: 86
Source: EPA Region 1
Telephone: 617-918-1313
Last EDR Contact: 06/11/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
INDIAN LUST R6: Leaking Underground Storage Tanks on Indian Land LUSTs on Indian land in New Mexico and Oklahoma.

Date of Government Version: 04/08/2020
Date Data Arrived at EDR: 05/20/2020
Date Made Active in Reports: 08/12/2020
Number of Days to Update: 84
Source: EPA Region 6
Telephone: 214-665-6597
Last EDR Contact: 06/11/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
CPS-SLIC: Statewide SLIC Cases (GEOTRACKER)
Cleanup Program Sites (CPS; also known as Site Cleanups [SC] and formerly known as Spills, Leaks, Investigations, and Cleanups [SLIC] sites) included in GeoTracker. GeoTracker is the Water Boards data management system for sites that impact, or have the potential to impact, water quality in California, with emphasis on groundwater.

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
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Packet Pg. 1056 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) SLIC REG 1: Active Toxic Site Investigations
The SLIC (Spills, Leaks, Investigations and Cleanup) program is designed to protect and restore water quality from spills, leaks, and similar discharges.

Date of Government Version: 04/03/2003
Date Data Arrived at EDR: 04/07/2003
Date Made Active in Reports: 04/25/2003
Number of Days to Update: 18
Source: California Regional Water Quality Control Board, North Coast Region (1) Telephone: 707-576-2220
Last EDR Contact: 08/01/2011
Next Scheduled EDR Contact: 11/14/2011
Data Release Frequency: No Update Planned
SLIC REG 2: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing The SLIC (Spills, Leaks, Investigations and Cleanup) program is designed to protect and restore water quality from spills, leaks, and similar discharges.

Date of Government Version: 09/30/2004
Date Data Arrived at EDR: 10/20/2004
Date Made Active in Reports: 11/19/2004
Number of Days to Update: 30
Source: Regional Water Quality Control Board San Francisco Bay Region (2) Telephone: 510-286-0457
Last EDR Contact: 09/19/2011
Next Scheduled EDR Contact: 01/02/2012
Data Release Frequency: No Update Planned
SLIC REG 3: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing The SLIC (Spills, Leaks, Investigations and Cleanup) program is designed to protect and restore water quality from spills, leaks, and similar discharges.

Date of Government Version: 05/18/2006
Date Data Arrived at EDR: 05/18/2006
Date Made Active in Reports: 06/15/2006
Number of Days to Update: 28
Source: California Regional Water Quality Control Board Central Coast Region (3) Telephone: 805-549-3147
Last EDR Contact: 07/18/2011
Next Scheduled EDR Contact: 10/31/2011
Data Release Frequency: No Update Planned
SLIC REG 4: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing The SLIC (Spills, Leaks, Investigations and Cleanup) program is designed to protect and restore water quality from spills, leaks, and similar discharges.

Date of Government Version: 11/17/2004
Date Data Arrived at EDR: 11/18/2004
Date Made Active in Reports: 01/04/2005
Number of Days to Update: 47
Source: Region Water Quality Control Board Los Angeles Region (4) Telephone: 213-576-6600
Last EDR Contact: 07/01/2011
Next Scheduled EDR Contact: 10/17/2011
Data Release Frequency: No Update Planned
SLIC REG 5: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing The SLIC (Spills, Leaks, Investigations and Cleanup) program is designed to protect and restore water quality from spills, leaks, and similar discharges.

Date of Government Version: 04/01/2005
Date Data Arrived at EDR: 04/05/2005
Date Made Active in Reports: 04/21/2005
Number of Days to Update: 16
Source: Regional Water Quality Control Board Central Valley Region (5) Telephone: 916-464-3291
Last EDR Contact: 09/12/2011
Next Scheduled EDR Contact: 12/26/2011
Data Release Frequency: No Update Planned
SLIC REG 6V: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing The SLIC (Spills, Leaks, Investigations and Cleanup) program is designed to protect and restore water quality from spills, leaks, and similar discharges.

Date of Government Version: 05/24/2005
Date Data Arrived at EDR: 05/25/2005
Date Made Active in Reports: 06/16/2005
Number of Days to Update: 22
Source: Regional Water Quality Control Board, Victorville Branch Telephone: 619-241-6583
Last EDR Contact: 08/15/2011
Next Scheduled EDR Contact: 11/28/2011
Data Release Frequency: No Update Planned
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Packet Pg. 1057 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) SLIC REG 6L: SLIC Sites
The SLIC (Spills, Leaks, Investigations and Cleanup) program is designed to protect and restore water quality from spills, leaks, and similar discharges.

Date of Government Version: 09/07/2004
Date Data Arrived at EDR: 09/07/2004
Date Made Active in Reports: 10/12/2004
Number of Days to Update: 35
Source: California Regional Water Quality Control Board, Lahontan Region Telephone: 530-542-5574
Last EDR Contact: 08/15/2011
Next Scheduled EDR Contact: 11/28/2011
Data Release Frequency: No Update Planned
SLIC REG 7: SLIC List
The SLIC (Spills, Leaks, Investigations and Cleanup) program is designed to protect and restore water quality from spills, leaks, and similar discharges.

Date of Government Version: 11/24/2004
Date Data Arrived at EDR: 11/29/2004
Date Made Active in Reports: 01/04/2005
Number of Days to Update: 36
Source: California Regional Quality Control Board, Colorado River Basin Region Telephone: 760-346-7491
Last EDR Contact: 08/01/2011
Next Scheduled EDR Contact: 11/14/2011
Data Release Frequency: No Update Planned
SLIC REG 8: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing The SLIC (Spills, Leaks, Investigations and Cleanup) program is designed to protect and restore water quality from spills, leaks, and similar discharges.

Date of Government Version: 04/03/2008
Date Data Arrived at EDR: 04/03/2008
Date Made Active in Reports: 04/14/2008
Number of Days to Update: 11
Source: California Region Water Quality Control Board Santa Ana Region (8) Telephone: 951-782-3298
Last EDR Contact: 09/12/2011
Next Scheduled EDR Contact: 12/26/2011
Data Release Frequency: No Update Planned
SLIC REG 9: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing The SLIC (Spills, Leaks, Investigations and Cleanup) program is designed to protect and restore water quality from spills, leaks, and similar discharges.

Date of Government Version: 09/10/2007
Date Data Arrived at EDR: 09/11/2007
Date Made Active in Reports: 09/28/2007
Number of Days to Update: 17
Source: California Regional Water Quality Control Board San Diego Region (9) Telephone: 858-467-2980
Last EDR Contact: 08/08/2011
Next Scheduled EDR Contact: 11/21/2011
Data Release Frequency: No Update Planned
State and tribal registered storage tank lists
FEMA UST: Underground Storage Tank Listing
A listing of all FEMA owned underground storage tanks.

Date of Government Version: 01/29/2021
Date Data Arrived at EDR: 02/17/2021
Date Made Active in Reports: 03/22/2021
Number of Days to Update: 33
Source: FEMA
Telephone: 202-646-5797
Last EDR Contact: 04/05/2021
Next Scheduled EDR Contact: 07/19/2021
Data Release Frequency: Varies
UST: Active UST Facilities
Active UST facilities gathered from the local regulatory agencies Date of Government Version: 03/08/2021
Date Data Arrived at EDR: 03/09/2021
Date Made Active in Reports: 03/31/2021
Number of Days to Update: 22
Source: SWRCB
Telephone: 916-341-5851
Last EDR Contact: 06/03/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Semi-Annually
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Packet Pg. 1058 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) UST CLOSURE: Proposed Closure of Underground Storage Tank (UST) Cases UST cases that are being considered for closure by either the State Water Resources Control Board or the Executive Director have been posted for a 60-day public comment period. UST Case Closures being proposed for consideration by the State Water Resources Control Board. These are primarily UST cases that meet closure criteria under the decisional framework in State Water Board Resolution No. 92-49 and other Board orders. UST Case Closures proposed for consideration by the Executive Director pursuant to State Water Board Resolution No. 2012-0061. These are cases that meet the criteria of the Low-Threat UST Case Closure Policy. UST Case Closure Review Denials and Approved Orders.

Date of Government Version: 03/05/2021
Date Data Arrived at EDR: 03/09/2021
Date Made Active in Reports: 04/01/2021
Number of Days to Update: 23
Source: State Water Resources Control Board
Telephone: 916-327-7844
Last EDR Contact: 06/04/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Varies
MILITARY UST SITES: Military UST Sites (GEOTRACKER)
Military ust sites
Date of Government Version: 03/08/2021
Date Data Arrived at EDR: 03/09/2021
Date Made Active in Reports: 03/30/2021
Number of Days to Update: 21
Source: State Water Resources Control Board
Telephone: 866-480-1028
Last EDR Contact: 06/03/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Varies
AST: Aboveground Petroleum Storage Tank Facilities
A listing of aboveground storage tank petroleum storage tank locations.

Date of Government Version: 07/06/2016
Date Data Arrived at EDR: 07/12/2016
Date Made Active in Reports: 09/19/2016
Number of Days to Update: 69
Source: California Environmental Protection Agency
Telephone: 916-327-5092
Last EDR Contact: 06/08/2021
Next Scheduled EDR Contact: 09/27/2021
Data Release Frequency: Varies
INDIAN UST R8: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 8 (Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming and 27 Tribal Nations).

Date of Government Version: 10/09/2020
Date Data Arrived at EDR: 12/16/2020
Date Made Active in Reports: 03/12/2021
Number of Days to Update: 86
Source: EPA Region 8
Telephone: 303-312-6137
Last EDR Contact: 06/11/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
INDIAN UST R4: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 4 (Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee and Tribal Nations)
Date of Government Version: 10/02/2020
Date Data Arrived at EDR: 12/18/2020
Date Made Active in Reports: 03/12/2021
Number of Days to Update: 84
Source: EPA Region 4
Telephone: 404-562-9424
Last EDR Contact: 06/11/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
INDIAN UST R10: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 10 (Alaska, Idaho, Oregon, Washington, and Tribal Nations).

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
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Packet Pg. 1059 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) INDIAN UST R6: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 6 (Louisiana, Arkansas, Oklahoma, New Mexico, Texas and 65 Tribes).

Date of Government Version: 04/08/2020
Date Data Arrived at EDR: 05/20/2020
Date Made Active in Reports: 08/12/2020
Number of Days to Update: 84
Source: EPA Region 6
Telephone: 214-665-7591
Last EDR Contact: 06/11/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
INDIAN UST R1: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 1 (Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont and ten Tribal Nations).

Date of Government Version: 10/01/2020
Date Data Arrived at EDR: 12/16/2020
Date Made Active in Reports: 03/12/2021
Number of Days to Update: 86
Source: EPA, Region 1
Telephone: 617-918-1313
Last EDR Contact: 06/11/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
INDIAN UST R9: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 9 (Arizona, California, Hawaii, Nevada, the Pacific Islands, and Tribal Nations).

Date of Government Version: 10/01/2020
Date Data Arrived at EDR: 12/16/2020
Date Made Active in Reports: 03/12/2021
Number of Days to Update: 86
Source: EPA Region 9
Telephone: 415-972-3368
Last EDR Contact: 06/11/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
INDIAN UST R7: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 7 (Iowa, Kansas, Missouri, Nebraska, and 9 Tribal Nations).

Date of Government Version: 09/30/2020
Date Data Arrived at EDR: 12/22/2020
Date Made Active in Reports: 03/12/2021
Number of Days to Update: 80
Source: EPA Region 7
Telephone: 913-551-7003
Last EDR Contact: 06/11/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
INDIAN UST R5: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 5 (Michigan, Minnesota and Wisconsin and Tribal Nations).

Date of Government Version: 10/07/2020
Date Data Arrived at EDR: 12/16/2020
Date Made Active in Reports: 03/12/2021
Number of Days to Update: 86
Source: EPA Region 5
Telephone: 312-886-6136
Last EDR Contact: 06/11/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
State and tribal voluntary cleanup sites
INDIAN VCP R1: Voluntary Cleanup Priority Listing
A listing of voluntary cleanup priority sites located on Indian Land located in Region 1.

Date of Government Version: 07/27/2015
Date Data Arrived at EDR: 09/29/2015
Date Made Active in Reports: 02/18/2016
Number of Days to Update: 142
Source: EPA, Region 1
Telephone: 617-918-1102
Last EDR Contact: 06/15/2021
Next Scheduled EDR Contact: 10/04/2021
Data Release Frequency: Varies
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Packet Pg. 1060 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) INDIAN VCP R7: Voluntary Cleanup Priority Lisitng
A listing of voluntary cleanup priority sites located on Indian Land located in Region 7.

Date of Government Version: 03/20/2008
Date Data Arrived at EDR: 04/22/2008
Date Made Active in Reports: 05/19/2008
Number of Days to Update: 27
Source: EPA, Region 7
Telephone: 913-551-7365
Last EDR Contact: 04/20/2009
Next Scheduled EDR Contact: 07/20/2009
Data Release Frequency: Varies
VCP: Voluntary Cleanup Program Properties
Contains low threat level properties with either confirmed or unconfirmed releases and the project proponents have request that DTSC oversee investigation and/or cleanup activities and have agreed to provide coverage for DTSC’s costs.

Date of Government Version: 03/22/2021
Date Data Arrived at EDR: 03/23/2021
Date Made Active in Reports: 06/10/2021
Number of Days to Update: 79
Source: State Water Resources Control Board
Telephone: 916-323-7905
Last EDR Contact: 03/23/2021
Next Scheduled EDR Contact: 07/05/2021
Data Release Frequency: Quarterly

ADDITIONAL ENVIRONMENTAL RECORDS
Local Brownfield lists
US BROWNFIELDS: A Listing of Brownfields Sites
Brownfields are real property, the expansion, redevelopment, or reuse of which may be complicated by the presence or potential presence of a hazardous substance, pollutant, or contaminant. Cleaning up and reinvesting in these properties takes development pressures off of undeveloped, open land, and both improves and protects the environment.

Assessment, Cleanup and Redevelopment Exchange System (ACRES) stores information reported by EPA Brownfields grant recipients on brownfields properties assessed or cleaned up with grant funding as well as information on Targeted Brownfields Assessments performed by EPA Regions. A listing of ACRES Brownfield sites is obtained from Cleanups in My Community. Cleanups in My Community provides information on Brownfields properties for which information is reported back to EPA, as well as areas served by Brownfields grant programs.

Date of Government Version: 03/15/2021
Date Data Arrived at EDR: 03/16/2021
Date Made Active in Reports: 06/10/2021
Number of Days to Update: 86
Source: Environmental Protection Agency
Telephone: 202-566-2777
Last EDR Contact: 06/10/2021
Next Scheduled EDR Contact: 09/27/2021
Data Release Frequency: Semi-Annually
Local Lists of Landfill / Solid Waste Disposal Sites
WMUDS/SWAT: Waste Management Unit Database
Waste Management Unit Database System. WMUDS is used by the State Water Resources Control Board staff and the Regional Water Quality Control Boards for program tracking and inventory of waste management units. WMUDS is composed of the following databases: Facility Information, Scheduled Inspections Information, Waste Management Unit Information, SWAT Program Information, SWAT Report Summary Information, SWAT Report Summary Data, Chapter 15 (formerly Subchapter 15) Information, Chapter 15 Monitoring Parameters, TPCA Program Information, RCRA Program Information, Closure Information, and Interested Parties Information.

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Packet Pg. 1061 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Date of Government Version: 04/01/2000
Date Data Arrived at EDR: 04/10/2000
Date Made Active in Reports: 05/10/2000
Number of Days to Update: 30
Source: State Water Resources Control Board
Telephone: 916-227-4448
Last EDR Contact: 04/21/2021
Next Scheduled EDR Contact: 08/09/2021
Data Release Frequency: No Update Planned
SWRCY: Recycler Database
A listing of recycling facilities in California.

Date of Government Version: 03/09/2021
Date Data Arrived at EDR: 03/09/2021
Date Made Active in Reports: 03/31/2021
Number of Days to Update: 22
Source: Department of Conservation
Telephone: 916-323-3836
Last EDR Contact: 06/04/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Quarterly
HAULERS: Registered Waste Tire Haulers Listing
A listing of registered waste tire haulers.

Date of Government Version: 11/23/2020
Date Data Arrived at EDR: 11/23/2020
Date Made Active in Reports: 02/08/2021
Number of Days to Update: 77
Source: Integrated Waste Management Board
Telephone: 916-341-6422
Last EDR Contact: 06/15/2021
Next Scheduled EDR Contact: 08/23/2021
Data Release Frequency: Varies
INDIAN ODI: Report on the Status of Open Dumps on Indian Lands Location of open dumps on Indian land.

Date of Government Version: 12/31/1998
Date Data Arrived at EDR: 12/03/2007
Date Made Active in Reports: 01/24/2008
Number of Days to Update: 52
Source: Environmental Protection Agency
Telephone: 703-308-8245
Last EDR Contact: 04/22/2021
Next Scheduled EDR Contact: 08/09/2021
Data Release Frequency: Varies
ODI: Open Dump Inventory
An open dump is defined as a disposal facility that does not comply with one or more of the Part 257 or Part 258 Subtitle D Criteria.

Date of Government Version: 06/30/1985
Date Data Arrived at EDR: 08/09/2004
Date Made Active in Reports: 09/17/2004
Number of Days to Update: 39
Source: Environmental Protection Agency
Telephone: 800-424-9346
Last EDR Contact: 06/09/2004
Next Scheduled EDR Contact: N/A
Data Release Frequency: No Update Planned
DEBRIS REGION 9: Torres Martinez Reservation Illegal Dump Site Locations A listing of illegal dump sites location on the Torres Martinez Indian Reservation located in eastern Riverside County and northern Imperial County, California.

Date of Government Version: 01/12/2009
Date Data Arrived at EDR: 05/07/2009
Date Made Active in Reports: 09/21/2009
Number of Days to Update: 137
Source: EPA, Region 9
Telephone: 415-947-4219
Last EDR Contact: 04/14/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: No Update Planned
IHS OPEN DUMPS: Open Dumps on Indian Land
A listing of all open dumps located on Indian Land in the United States.

Date of Government Version: 04/01/2014
Date Data Arrived at EDR: 08/06/2014
Date Made Active in Reports: 01/29/2015
Number of Days to Update: 176
Source: Department of Health & Human Serivces, Indian Health Service Telephone: 301-443-1452
Last EDR Contact: 04/29/2021
Next Scheduled EDR Contact: 08/09/2021
Data Release Frequency: Varies
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Packet Pg. 1062 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Local Lists of Hazardous waste / Contaminated Sites
US HIST CDL: National Clandestine Laboratory Register
A listing of clandestine drug lab locations that have been removed from the DEAs National Clandestine Laboratory Register.

Date of Government Version: 12/07/2020
Date Data Arrived at EDR: 12/09/2020
Date Made Active in Reports: 03/02/2021
Number of Days to Update: 83
Source: Drug Enforcement Administration
Telephone: 202-307-1000
Last EDR Contact: 05/22/2021
Next Scheduled EDR Contact: 09/06/2021
Data Release Frequency: No Update Planned
HIST CAL-SITES: Calsites Database
The Calsites database contains potential or confirmed hazardous substance release properties. In 1996, California EPA reevaluated and significantly reduced the number of sites in the Calsites database. No longer updated by the state agency. It has been replaced by ENVIROSTOR.

Date of Government Version: 08/08/2005
Date Data Arrived at EDR: 08/03/2006
Date Made Active in Reports: 08/24/2006
Number of Days to Update: 21
Source: Department of Toxic Substance Control
Telephone: 916-323-3400
Last EDR Contact: 02/23/2009
Next Scheduled EDR Contact: 05/25/2009
Data Release Frequency: No Update Planned
SCH: School Property Evaluation Program
This category contains proposed and existing school sites that are being evaluated by DTSC for possible hazardous materials contamination. In some cases, these properties may be listed in the CalSites category depending on the level of threat to public health and safety or the environment they pose.

Date of Government Version: 12/31/2019
Date Data Arrived at EDR: 01/20/2021
Date Made Active in Reports: 04/08/2021
Number of Days to Update: 78
Source: Department of Toxic Substances Control
Telephone: 916-255-6504
Last EDR Contact: 04/14/2021
Next Scheduled EDR Contact: 07/19/2021
Data Release Frequency: Varies
CERS HAZ WASTE: CERS HAZ WASTE
List of sites in the California Environmental Protection Agency (CalEPA) Regulated Site Portal which fall under the Hazardous Chemical Management, Hazardous Waste Onsite Treatment, Household Hazardous Waste Collection, Hazardous Waste Generator, and RCRA LQ HW Generator programs.

Date of Government Version: 01/20/2021
Date Data Arrived at EDR: 01/20/2021
Date Made Active in Reports: 04/08/2021
Number of Days to Update: 78
Source: CalEPA
Telephone: 916-323-2514
Last EDR Contact: 04/20/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Quarterly
TOXIC PITS: Toxic Pits Cleanup Act Sites
Toxic PITS Cleanup Act Sites. TOXIC PITS identifies sites suspected of containing hazardous substances where cleanup has not yet been completed.

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Packet Pg. 1063 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Date of Government Version: 07/01/1995
Date Data Arrived at EDR: 08/30/1995
Date Made Active in Reports: 09/26/1995
Number of Days to Update: 27
Source: State Water Resources Control Board
Telephone: 916-227-4364
Last EDR Contact: 01/26/2009
Next Scheduled EDR Contact: 04/27/2009
Data Release Frequency: No Update Planned
US CDL: Clandestine Drug Labs
A listing of clandestine drug lab locations. The U.S. Department of Justice ("the Department") provides this web site as a public service. It contains addresses of some locations where law enforcement agencies reported they found chemicals or other items that indicated the presence of either clandestine drug laboratories or dumpsites.

In most cases, the source of the entries is not the Department, and the Department has not verified the entry and does not guarantee its accuracy. Members of the public must verify the accuracy of all entries by, for example, contacting local law enforcement and local health departments.

Date of Government Version: 02/24/2021
Date Data Arrived at EDR: 02/24/2021
Date Made Active in Reports: 05/14/2021
Number of Days to Update: 79
Source: State Water Resources Control Board
Telephone: 866-480-1028
Last EDR Contact: 06/04/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Varies
Local Lists of Registered Storage Tanks
SWEEPS UST: SWEEPS UST Listing
Statewide Environmental Evaluation and Planning System. This underground storage tank listing was updated and maintained by a company contacted by the SWRCB in the early 1990’s. The listing is no longer updated or maintained.

The local agency is the contact for more information on a site on the SWEEPS list.

Date of Government Version: 06/01/1994
Date Data Arrived at EDR: 07/07/2005
Date Made Active in Reports: 08/11/2005
Number of Days to Update: 35
Source: State Water Resources Control Board
Telephone: N/A
Last EDR Contact: 06/03/2005
Next Scheduled EDR Contact: N/A
Data Release Frequency: No Update Planned
HIST UST: Hazardous Substance Storage Container Database The Hazardous Substance Storage Container Database is a historical listing of UST sites. Refer to local/county source for current data.

Date of Government Version: 10/15/1990
Date Data Arrived at EDR: 01/25/1991
Date Made Active in Reports: 02/12/1991
Number of Days to Update: 18
Source: State Water Resources Control Board
Telephone: 916-341-5851
Last EDR Contact: 07/26/2001
Next Scheduled EDR Contact: N/A
Data Release Frequency: No Update Planned
SAN FRANCISCO AST: Aboveground Storage Tank Site Listing Aboveground storage tank sites
Date of Government Version: 02/11/2021
Date Data Arrived at EDR: 02/11/2021
Date Made Active in Reports: 05/05/2021
Number of Days to Update: 83
Source: San Francisco County Department of Public Health Telephone: 415-252-3896
Last EDR Contact: 04/27/2021
Next Scheduled EDR Contact: 08/16/2021
Data Release Frequency: Varies
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Packet Pg. 1064 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) CERS TANKS: California Environmental Reporting System (CERS) Tanks List of sites in the California Environmental Protection Agency (CalEPA) Regulated Site Portal which fall under the Aboveground Petroleum Storage and Underground Storage Tank regulatory programs.

Date of Government Version: 01/20/2021
Date Data Arrived at EDR: 01/20/2021
Date Made Active in Reports: 04/08/2021
Number of Days to Update: 78
Source: California Environmental Protection Agency
Telephone: 916-323-2514
Last EDR Contact: 04/20/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Quarterly
CA FID UST: Facility Inventory Database
The Facility Inventory Database (FID) contains a historical listing of active and inactive underground storage tank locations from the State Water Resource Control Board. Refer to local/county source for current data.

Date of Government Version: 10/31/1994
Date Data Arrived at EDR: 09/05/1995
Date Made Active in Reports: 09/29/1995
Number of Days to Update: 24
Source: California Environmental Protection Agency
Telephone: 916-341-5851
Last EDR Contact: 12/28/1998
Next Scheduled EDR Contact: N/A
Data Release Frequency: No Update Planned
Local Land Records
LIENS: Environmental Liens Listing
A listing of property locations with environmental liens for California where DTSC is a lien holder.

Date of Government Version: 03/01/2021
Date Data Arrived at EDR: 03/03/2021
Date Made Active in Reports: 05/20/2021
Number of Days to Update: 78
Source: Department of Toxic Substances Control
Telephone: 916-323-3400
Last EDR Contact: 05/25/2021
Next Scheduled EDR Contact: 09/13/2021
Data Release Frequency: Varies
LIENS 2: CERCLA Lien Information
A Federal CERCLA (’Superfund’) lien can exist by operation of law at any site or property at which EPA has spent Superfund monies. These monies are spent to investigate and address releases and threatened releases of contamination.

CERCLIS provides information as to the identity of these sites and properties.

Date of Government Version: 04/27/2021
Date Data Arrived at EDR: 05/03/2021
Date Made Active in Reports: 05/19/2021
Number of Days to Update: 16
Source: Environmental Protection Agency
Telephone: 202-564-6023
Last EDR Contact: 06/04/2021
Next Scheduled EDR Contact: 07/12/2021
Data Release Frequency: Semi-Annually
DEED: Deed Restriction Listing
Site Mitigation and Brownfields Reuse Program Facility Sites with Deed Restrictions & Hazardous Waste Management Program Facility Sites with Deed / Land Use Restriction. The DTSC Site Mitigation and Brownfields Reuse Program (SMBRP) list includes sites cleaned up under the program’s oversight and generally does not include current or former hazardous waste facilities that required a hazardous waste facility permit. The list represents deed restrictions that are active. Some sites have multiple deed restrictions. The DTSC Hazardous Waste Management Program (HWMP) has developed a list of current or former hazardous waste facilities that have a recorded land use restriction at the local county recorder’s office. The land use restrictions on this list were required by the DTSC HWMP as a result of the presence of hazardous substances that remain on site after the facility (or part of the facility) has been closed or cleaned up. The types of land use restriction include deed notice, deed restriction, or a land use restriction that binds current and future owners.

Date of Government Version: 03/02/2021
Date Data Arrived at EDR: 03/03/2021
Date Made Active in Reports: 05/19/2021
Number of Days to Update: 77
Source: DTSC and SWRCB
Telephone: 916-323-3400
Last EDR Contact: 05/28/2021
Next Scheduled EDR Contact: 09/13/2021
Data Release Frequency: Semi-Annually
Records of Emergency Release Reports
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Packet Pg. 1065 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) HMIRS: Hazardous Materials Information Reporting System Hazardous Materials Incident Report System. HMIRS contains hazardous material spill incidents reported to DOT.

Date of Government Version: 12/16/2020
Date Data Arrived at EDR: 12/17/2020
Date Made Active in Reports: 03/12/2021
Number of Days to Update: 85
Source: U.S. Department of Transportation
Telephone: 202-366-4555
Last EDR Contact: 03/24/2021
Next Scheduled EDR Contact: 07/05/2021
Data Release Frequency: Quarterly
CHMIRS: California Hazardous Material Incident Report System California Hazardous Material Incident Reporting System. CHMIRS contains information on reported hazardous material incidents (accidental releases or spills).

Date of Government Version: 12/31/2020
Date Data Arrived at EDR: 01/20/2021
Date Made Active in Reports: 04/08/2021
Number of Days to Update: 78
Source: Office of Emergency Services
Telephone: 916-845-8400
Last EDR Contact: 04/20/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Semi-Annually
LDS: Land Disposal Sites Listing (GEOTRACKER)
Land Disposal sites (Landfills) included in GeoTracker. GeoTracker is the Water Boards data management system for sites that impact, or have the potential to impact, water quality in California, with emphasis on groundwater.

Date of Government Version: 03/08/2021
Date Data Arrived at EDR: 03/09/2021
Date Made Active in Reports: 03/31/2021
Number of Days to Update: 22
Source: State Water Qualilty Control Board
Telephone: 866-480-1028
Last EDR Contact: 06/03/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Quarterly
MCS: Military Cleanup Sites Listing (GEOTRACKER)
Military sites (consisting of: Military UST sites; Military Privatized sites; and Military Cleanup sites [formerly known as DoD non UST]) included in GeoTracker. GeoTracker is the Water Boards data management system for sites that impact, or have the potential to impact, water quality in California, with emphasis on groundwater.

Date of Government Version: 03/08/2021
Date Data Arrived at EDR: 03/09/2021
Date Made Active in Reports: 03/31/2021
Number of Days to Update: 22
Source: State Water Resources Control Board
Telephone: 866-480-1028
Last EDR Contact: 06/03/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Quarterly
SPILLS 90: SPILLS90 data from FirstSearch
Spills 90 includes those spill and release records available exclusively from FirstSearch databases. Typically, they may include chemical, oil and/or hazardous substance spills recorded after 1990. Duplicate records that are already included in EDR incident and release records are not included in Spills 90.

Date of Government Version: 06/06/2012
Date Data Arrived at EDR: 01/03/2013
Date Made Active in Reports: 02/22/2013
Number of Days to Update: 50
Source: FirstSearch
Telephone: N/A
Last EDR Contact: 01/03/2013
Next Scheduled EDR Contact: N/A
Data Release Frequency: No Update Planned
Other Ascertainable Records
RCRA NonGen / NLR: RCRA - Non Generators / No Longer Regulated RCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The database includes selective information on sites which generate, transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Non-Generators do not presently generate hazardous waste.

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Packet Pg. 1066 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Date of Government Version: 03/22/2021
Date Data Arrived at EDR: 03/23/2021
Date Made Active in Reports: 05/19/2021
Number of Days to Update: 57
Source: Environmental Protection Agency
Telephone: (415) 495-8895
Last EDR Contact: 03/23/2021
Next Scheduled EDR Contact: 07/05/2021
Data Release Frequency: Quarterly
FUDS: Formerly Used Defense Sites
The listing includes locations of Formerly Used Defense Sites properties where the US Army Corps of Engineers is actively working or will take necessary cleanup actions.

Date of Government Version: 02/11/2021
Date Data Arrived at EDR: 02/17/2021
Date Made Active in Reports: 04/05/2021
Number of Days to Update: 47
Source: U.S. Army Corps of Engineers
Telephone: 202-528-4285
Last EDR Contact: 05/18/2021
Next Scheduled EDR Contact: 08/30/2021
Data Release Frequency: Varies
DOD: Department of Defense Sites
This data set consists of federally owned or administered lands, administered by the Department of Defense, that have any area equal to or greater than 640 acres of the United States, Puerto Rico, and the U.S. Virgin Islands.

Date of Government Version: 12/31/2005
Date Data Arrived at EDR: 11/10/2006
Date Made Active in Reports: 01/11/2007
Number of Days to Update: 62
Source: USGS
Telephone: 888-275-8747
Last EDR Contact: 04/16/2021
Next Scheduled EDR Contact: 07/26/2021
Data Release Frequency: Semi-Annually
FEDLAND: Federal and Indian Lands
Federally and Indian administrated lands of the United States. Lands included are administrated by: Army Corps of Engineers, Bureau of Reclamation, National Wild and Scenic River, National Wildlife Refuge, Public Domain Land, Wilderness, Wilderness Study Area, Wildlife Management Area, Bureau of Indian Affairs, Bureau of Land Management, Department of Justice, Forest Service, Fish and Wildlife Service, National Park Service.

Date of Government Version: 04/02/2018
Date Data Arrived at EDR: 04/11/2018
Date Made Active in Reports: 11/06/2019
Number of Days to Update: 574
Source: U.S. Geological Survey
Telephone: 888-275-8747
Last EDR Contact: 04/05/2021
Next Scheduled EDR Contact: 07/19/2021
Data Release Frequency: N/A
SCRD DRYCLEANERS: State Coalition for Remediation of Drycleaners Listing The State Coalition for Remediation of Drycleaners was established in 1998, with support from the U.S. EPA Office of Superfund Remediation and Technology Innovation. It is comprised of representatives of states with established drycleaner remediation programs. Currently the member states are Alabama, Connecticut, Florida, Illinois, Kansas, Minnesota, Missouri, North Carolina, Oregon, South Carolina, Tennessee, Texas, and Wisconsin.

Date of Government Version: 01/01/2017
Date Data Arrived at EDR: 02/03/2017
Date Made Active in Reports: 04/07/2017
Number of Days to Update: 63
Source: Environmental Protection Agency
Telephone: 615-532-8599
Last EDR Contact: 05/18/2021
Next Scheduled EDR Contact: 08/23/2021
Data Release Frequency: Varies
US FIN ASSUR: Financial Assurance Information
All owners and operators of facilities that treat, store, or dispose of hazardous waste are required to provide proof that they will have sufficient funds to pay for the clean up, closure, and post-closure care of their facilities.

Date of Government Version: 12/14/2020
Date Data Arrived at EDR: 12/17/2020
Date Made Active in Reports: 03/12/2021
Number of Days to Update: 85
Source: Environmental Protection Agency
Telephone: 202-566-1917
Last EDR Contact: 03/23/2021
Next Scheduled EDR Contact: 07/05/2021
Data Release Frequency: Quarterly
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Packet Pg. 1067 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) EPA WATCH LIST: EPA WATCH LIST
EPA maintains a "Watch List" to facilitate dialogue between EPA, state and local environmental agencies on enforcement matters relating to facilities with alleged violations identified as either significant or high priority. Being on the Watch List does not mean that the facility has actually violated the law only that an investigation by EPA or a state or local environmental agency has led those organizations to allege that an unproven violation has in fact occurred. Being on the Watch List does not represent a higher level of concern regarding the alleged violations that were detected, but instead indicates cases requiring additional dialogue between EPA, state and local agencies - primarily because of the length of time the alleged violation has gone unaddressed or unresolved.

Date of Government Version: 08/30/2013
Date Data Arrived at EDR: 03/21/2014
Date Made Active in Reports: 06/17/2014
Number of Days to Update: 88
Source: Environmental Protection Agency
Telephone: 617-520-3000
Last EDR Contact: 04/30/2021
Next Scheduled EDR Contact: 08/16/2021
Data Release Frequency: Quarterly
2020 COR ACTION: 2020 Corrective Action Program List
The EPA has set ambitious goals for the RCRA Corrective Action program by creating the 2020 Corrective Action Universe. This RCRA cleanup baseline includes facilities expected to need corrective action. The 2020 universe contains a wide variety of sites. Some properties are heavily contaminated while others were contaminated but have since been cleaned up. Still others have not been fully investigated yet, and may require little or no remediation.

Inclusion in the 2020 Universe does not necessarily imply failure on the part of a facility to meet its RCRA obligations.

Date of Government Version: 09/30/2017
Date Data Arrived at EDR: 05/08/2018
Date Made Active in Reports: 07/20/2018
Number of Days to Update: 73
Source: Environmental Protection Agency
Telephone: 703-308-4044
Last EDR Contact: 05/07/2021
Next Scheduled EDR Contact: 08/16/2021
Data Release Frequency: Varies
TSCA: Toxic Substances Control Act
Toxic Substances Control Act. TSCA identifies manufacturers and importers of chemical substances included on the TSCA Chemical Substance Inventory list. It includes data on the production volume of these substances by plant site.

Date of Government Version: 12/31/2016
Date Data Arrived at EDR: 06/17/2020
Date Made Active in Reports: 09/10/2020
Number of Days to Update: 85
Source: EPA
Telephone: 202-260-5521
Last EDR Contact: 03/19/2021
Next Scheduled EDR Contact: 06/28/2021
Data Release Frequency: Every 4 Years
TRIS: Toxic Chemical Release Inventory System
Toxic Release Inventory System. TRIS identifies facilities which release toxic chemicals to the air, water and land in reportable quantities under SARA Title III Section 313.

Date of Government Version: 12/31/2018
Date Data Arrived at EDR: 08/14/2020
Date Made Active in Reports: 11/04/2020
Number of Days to Update: 82
Source: EPA
Telephone: 202-566-0250
Last EDR Contact: 05/17/2021
Next Scheduled EDR Contact: 08/30/2021
Data Release Frequency: Annually
SSTS: Section 7 Tracking Systems
Section 7 of the Federal Insecticide, Fungicide and Rodenticide Act, as amended (92 Stat. 829) requires all registered pesticide-producing establishments to submit a report to the Environmental Protection Agency by March 1st each year. Each establishment must report the types and amounts of pesticides, active ingredients and devices being produced, and those having been produced and sold or distributed in the past year.

Date of Government Version: 01/20/2021
Date Data Arrived at EDR: 01/21/2021
Date Made Active in Reports: 03/22/2021
Number of Days to Update: 60
Source: EPA
Telephone: 202-564-4203
Last EDR Contact: 04/20/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Annually
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Packet Pg. 1068 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) ROD: Records Of Decision
Record of Decision. ROD documents mandate a permanent remedy at an NPL (Superfund) site containing technical and health information to aid in the cleanup.

Date of Government Version: 04/27/2021
Date Data Arrived at EDR: 05/03/2021
Date Made Active in Reports: 05/19/2021
Number of Days to Update: 16
Source: EPA
Telephone: 703-416-0223
Last EDR Contact: 06/04/2021
Next Scheduled EDR Contact: 09/13/2021
Data Release Frequency: Annually
RMP: Risk Management Plans
When Congress passed the Clean Air Act Amendments of 1990, it required EPA to publish regulations and guidance for chemical accident prevention at facilities using extremely hazardous substances. The Risk Management Program Rule (RMP Rule) was written to implement Section 112(r) of these amendments. The rule, which built upon existing industry codes and standards, requires companies of all sizes that use certain flammable and toxic substances to develop a Risk Management Program, which includes a(n): Hazard assessment that details the potential effects of an accidental release, an accident history of the last five years, and an evaluation of worst-case and alternative accidental releases; Prevention program that includes safety precautions and maintenance, monitoring, and employee training measures; and Emergency response program that spells out emergency health care, employee training measures and procedures for informing the public and response agencies (e.g the fire department) should an accident occur.

Date of Government Version: 01/22/2021
Date Data Arrived at EDR: 02/18/2021
Date Made Active in Reports: 05/11/2021
Number of Days to Update: 82
Source: Environmental Protection Agency
Telephone: 202-564-8600
Last EDR Contact: 04/19/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
RAATS: RCRA Administrative Action Tracking System
RCRA Administration Action Tracking System. RAATS contains records based on enforcement actions issued under RCRA pertaining to major violators and includes administrative and civil actions brought by the EPA. For administration actions after September 30, 1995, data entry in the RAATS database was discontinued. EPA will retain a copy of the database for historical records. It was necessary to terminate RAATS because a decrease in agency resources made it impossible to continue to update the information contained in the database.

Date of Government Version: 04/17/1995
Date Data Arrived at EDR: 07/03/1995
Date Made Active in Reports: 08/07/1995
Number of Days to Update: 35
Source: EPA
Telephone: 202-564-4104
Last EDR Contact: 06/02/2008
Next Scheduled EDR Contact: 09/01/2008
Data Release Frequency: No Update Planned
PRP: Potentially Responsible Parties
A listing of verified Potentially Responsible Parties
Date of Government Version: 12/30/2020
Date Data Arrived at EDR: 01/14/2021
Date Made Active in Reports: 03/05/2021
Number of Days to Update: 50
Source: EPA
Telephone: 202-564-6023
Last EDR Contact: 06/04/2021
Next Scheduled EDR Contact: 08/16/2021
Data Release Frequency: Quarterly
PADS: PCB Activity Database System
PCB Activity Database. PADS Identifies generators, transporters, commercial storers and/or brokers and disposers of PCB’s who are required to notify the EPA of such activities.

Date of Government Version: 11/19/2020
Date Data Arrived at EDR: 01/08/2021
Date Made Active in Reports: 03/22/2021
Number of Days to Update: 73
Source: EPA
Telephone: 202-566-0500
Last EDR Contact: 04/09/2021
Next Scheduled EDR Contact: 07/19/2021
Data Release Frequency: Annually
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Packet Pg. 1069 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) ICIS: Integrated Compliance Information System
The Integrated Compliance Information System (ICIS) supports the information needs of the national enforcement and compliance program as well as the unique needs of the National Pollutant Discharge Elimination System (NPDES) program.

Date of Government Version: 11/18/2016
Date Data Arrived at EDR: 11/23/2016
Date Made Active in Reports: 02/10/2017
Number of Days to Update: 79
Source: Environmental Protection Agency
Telephone: 202-564-2501
Last EDR Contact: 03/31/2021
Next Scheduled EDR Contact: 07/19/2021
Data Release Frequency: Quarterly
FTTS: FIFRA/ TSCA Tracking System - FIFRA (Federal Insecticide, Fungicide, & Rodenticide Act)/TSCA (Toxic Substances Control Act) FTTS tracks administrative cases and pesticide enforcement actions and compliance activities related to FIFRA, TSCA and EPCRA (Emergency Planning and Community Right-to-Know Act). To maintain currency, EDR contacts the Agency on a quarterly basis.

Date of Government Version: 04/09/2009
Date Data Arrived at EDR: 04/16/2009
Date Made Active in Reports: 05/11/2009
Number of Days to Update: 25
Source: EPA/Office of Prevention, Pesticides and Toxic Substances Telephone: 202-566-1667
Last EDR Contact: 08/18/2017
Next Scheduled EDR Contact: 12/04/2017
Data Release Frequency: No Update Planned
FTTS INSP: FIFRA/ TSCA Tracking System - FIFRA (Federal Insecticide, Fungicide, & Rodenticide Act)/TSCA (Toxic Substances Control Act) A listing of FIFRA/TSCA Tracking System (FTTS) inspections and enforcements.

Date of Government Version: 04/09/2009
Date Data Arrived at EDR: 04/16/2009
Date Made Active in Reports: 05/11/2009
Number of Days to Update: 25
Source: EPA
Telephone: 202-566-1667
Last EDR Contact: 08/18/2017
Next Scheduled EDR Contact: 12/04/2017
Data Release Frequency: No Update Planned
MLTS: Material Licensing Tracking System
MLTS is maintained by the Nuclear Regulatory Commission and contains a list of approximately 8,100 sites which possess or use radioactive materials and which are subject to NRC licensing requirements. To maintain currency, EDR contacts the Agency on a quarterly basis.

Date of Government Version: 03/08/2021
Date Data Arrived at EDR: 03/11/2021
Date Made Active in Reports: 05/11/2021
Number of Days to Update: 61
Source: Nuclear Regulatory Commission
Telephone: 301-415-7169
Last EDR Contact: 04/16/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Quarterly
COAL ASH DOE: Steam-Electric Plant Operation Data
A listing of power plants that store ash in surface ponds.

Date of Government Version: 12/31/2019
Date Data Arrived at EDR: 12/01/2020
Date Made Active in Reports: 02/09/2021
Number of Days to Update: 70
Source: Department of Energy
Telephone: 202-586-8719
Last EDR Contact: 05/27/2021
Next Scheduled EDR Contact: 09/13/2021
Data Release Frequency: Varies
COAL ASH EPA: Coal Combustion Residues Surface Impoundments List A listing of coal combustion residues surface impoundments with high hazard potential ratings.

Date of Government Version: 01/12/2017
Date Data Arrived at EDR: 03/05/2019
Date Made Active in Reports: 11/11/2019
Number of Days to Update: 251
Source: Environmental Protection Agency
Telephone: N/A
Last EDR Contact: 05/27/2021
Next Scheduled EDR Contact: 09/13/2021
Data Release Frequency: Varies
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Packet Pg. 1070 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) PCB TRANSFORMER: PCB Transformer Registration Database
The database of PCB transformer registrations that includes all PCB registration submittals.

Date of Government Version: 09/13/2019
Date Data Arrived at EDR: 11/06/2019
Date Made Active in Reports: 02/10/2020
Number of Days to Update: 96
Source: Environmental Protection Agency
Telephone: 202-566-0517
Last EDR Contact: 05/07/2021
Next Scheduled EDR Contact: 08/16/2021
Data Release Frequency: Varies
RADINFO: Radiation Information Database
The Radiation Information Database (RADINFO) contains information about facilities that are regulated by U.S.

Environmental Protection Agency (EPA) regulations for radiation and radioactivity.

Date of Government Version: 07/01/2019
Date Data Arrived at EDR: 07/01/2019
Date Made Active in Reports: 09/23/2019
Number of Days to Update: 84
Source: Environmental Protection Agency
Telephone: 202-343-9775
Last EDR Contact: 03/25/2021
Next Scheduled EDR Contact: 07/12/2021
Data Release Frequency: Quarterly
HIST FTTS: FIFRA/TSCA Tracking System Administrative Case Listing A complete administrative case listing from the FIFRA/TSCA Tracking System (FTTS) for all ten EPA regions. The information was obtained from the National Compliance Database (NCDB). NCDB supports the implementation of FIFRA (Federal Insecticide, Fungicide, and Rodenticide Act) and TSCA (Toxic Substances Control Act). Some EPA regions are now closing out records. Because of that, and the fact that some EPA regions are not providing EPA Headquarters with updated records, it was decided to create a HIST FTTS database. It included records that may not be included in the newer FTTS database updates. This database is no longer updated.

Date of Government Version: 10/19/2006
Date Data Arrived at EDR: 03/01/2007
Date Made Active in Reports: 04/10/2007
Number of Days to Update: 40
Source: Environmental Protection Agency
Telephone: 202-564-2501
Last EDR Contact: 12/17/2007
Next Scheduled EDR Contact: 03/17/2008
Data Release Frequency: No Update Planned
HIST FTTS INSP: FIFRA/TSCA Tracking System Inspection & Enforcement Case Listing A complete inspection and enforcement case listing from the FIFRA/TSCA Tracking System (FTTS) for all ten EPA regions. The information was obtained from the National Compliance Database (NCDB). NCDB supports the implementation of FIFRA (Federal Insecticide, Fungicide, and Rodenticide Act) and TSCA (Toxic Substances Control Act). Some EPA regions are now closing out records. Because of that, and the fact that some EPA regions are not providing EPA Headquarters with updated records, it was decided to create a HIST FTTS database. It included records that may not be included in the newer FTTS database updates. This database is no longer updated.

Date of Government Version: 01/02/2020
Date Data Arrived at EDR: 01/28/2020
Date Made Active in Reports: 04/17/2020
Number of Days to Update: 80
Source: Department of Transporation, Office of Pipeline Safety Telephone: 202-366-4595
Last EDR Contact: 04/27/2021
Next Scheduled EDR Contact: 08/09/2021
Data Release Frequency: Quarterly
CONSENT: Superfund (CERCLA) Consent Decrees
Major legal settlements that establish responsibility and standards for cleanup at NPL (Superfund) sites. Released periodically by United States District Courts after settlement by parties to litigation matters.

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Packet Pg. 1071 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Date of Government Version: 12/31/2020
Date Data Arrived at EDR: 01/13/2021
Date Made Active in Reports: 03/22/2021
Number of Days to Update: 68
Source: Department of Justice, Consent Decree Library
Telephone: Varies
Last EDR Contact: 04/05/2021
Next Scheduled EDR Contact: 07/19/2021
Data Release Frequency: Varies
BRS: Biennial Reporting System
The Biennial Reporting System is a national system administered by the EPA that collects data on the generation and management of hazardous waste. BRS captures detailed data from two groups: Large Quantity Generators (LQG) and Treatment, Storage, and Disposal Facilities.

Date of Government Version: 12/31/2017
Date Data Arrived at EDR: 06/22/2020
Date Made Active in Reports: 11/20/2020
Number of Days to Update: 151
Source: EPA/NTIS
Telephone: 800-424-9346
Last EDR Contact: 03/23/2021
Next Scheduled EDR Contact: 07/05/2021
Data Release Frequency: Biennially
INDIAN RESERV: Indian Reservations
This map layer portrays Indian administered lands of the United States that have any area equal to or greater than 640 acres.

Date of Government Version: 12/31/2014
Date Data Arrived at EDR: 07/14/2015
Date Made Active in Reports: 01/10/2017
Number of Days to Update: 546
Source: USGS
Telephone: 202-208-3710
Last EDR Contact: 04/06/2021
Next Scheduled EDR Contact: 07/19/2021
Data Release Frequency: Semi-Annually
FUSRAP: Formerly Utilized Sites Remedial Action Program DOE established the Formerly Utilized Sites Remedial Action Program (FUSRAP) in 1974 to remediate sites where radioactive contamination remained from Manhattan Project and early U.S. Atomic Energy Commission (AEC) operations.

Date of Government Version: 08/08/2017
Date Data Arrived at EDR: 09/11/2018
Date Made Active in Reports: 09/14/2018
Number of Days to Update: 3
Source: Department of Energy
Telephone: 202-586-3559
Last EDR Contact: 04/28/2021
Next Scheduled EDR Contact: 08/16/2021
Data Release Frequency: Varies
UMTRA: Uranium Mill Tailings Sites
Uranium ore was mined by private companies for federal government use in national defense programs. When the mills shut down, large piles of the sand-like material (mill tailings) remain after uranium has been extracted from the ore. Levels of human exposure to radioactive materials from the piles are low; however, in some cases tailings were used as construction materials before the potential health hazards of the tailings were recognized.

Date of Government Version: 08/30/2019
Date Data Arrived at EDR: 11/15/2019
Date Made Active in Reports: 01/28/2020
Number of Days to Update: 74
Source: Department of Energy
Telephone: 505-845-0011
Last EDR Contact: 05/21/2021
Next Scheduled EDR Contact: 08/30/2021
Data Release Frequency: Varies
LEAD SMELTER 1: Lead Smelter Sites
A listing of former lead smelter site locations.

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
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Packet Pg. 1072 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Date of Government Version: 04/05/2001
Date Data Arrived at EDR: 10/27/2010
Date Made Active in Reports: 12/02/2010
Number of Days to Update: 36
Source: American Journal of Public Health
Telephone: 703-305-6451
Last EDR Contact: 12/02/2009
Next Scheduled EDR Contact: N/A
Data Release Frequency: No Update Planned
US AIRS (AFS): Aerometric Information Retrieval System Facility Subsystem (AFS) The database is a sub-system of Aerometric Information Retrieval System (AIRS). AFS contains compliance data on air pollution point sources regulated by the U.S. EPA and/or state and local air regulatory agencies. This information comes from source reports by various stationary sources of air pollution, such as electric power plants, steel mills, factories, and universities, and provides information about the air pollutants they produce. Action, air program, air program pollutant, and general level plant data. It is used to track emissions and compliance data from industrial plants.

Date of Government Version: 10/12/2016
Date Data Arrived at EDR: 10/26/2016
Date Made Active in Reports: 02/03/2017
Number of Days to Update: 100
Source: EPA
Telephone: 202-564-2496
Last EDR Contact: 09/26/2017
Next Scheduled EDR Contact: 01/08/2018
Data Release Frequency: Annually
US AIRS MINOR: Air Facility System Data
A listing of minor source facilities.

Date of Government Version: 10/12/2016
Date Data Arrived at EDR: 10/26/2016
Date Made Active in Reports: 02/03/2017
Number of Days to Update: 100
Source: EPA
Telephone: 202-564-2496
Last EDR Contact: 09/26/2017
Next Scheduled EDR Contact: 01/08/2018
Data Release Frequency: Annually
US MINES: Mines Master Index File
Contains all mine identification numbers issued for mines active or opened since 1971. The data also includes violation information.

Date of Government Version: 02/01/2021
Date Data Arrived at EDR: 02/24/2021
Date Made Active in Reports: 05/19/2021
Number of Days to Update: 84
Source: Department of Labor, Mine Safety and Health Administration Telephone: 303-231-5959
Last EDR Contact: 05/25/2021
Next Scheduled EDR Contact: 09/06/2021
Data Release Frequency: Semi-Annually
MINES VIOLATIONS: MSHA Violation Assessment Data
Mines violation and assessment information. Department of Labor, Mine Safety & Health Administration.

Date of Government Version: 05/27/2021
Date Data Arrived at EDR: 05/27/2021
Date Made Active in Reports: 06/10/2021
Number of Days to Update: 14
Source: DOL, Mine Safety & Health Admi
Telephone: 202-693-9424
Last EDR Contact: 05/26/2021
Next Scheduled EDR Contact: 09/13/2021
Data Release Frequency: Quarterly
US MINES 2: Ferrous and Nonferrous Metal Mines Database Listing This map layer includes ferrous (ferrous metal mines are facilities that extract ferrous metals, such as iron ore or molybdenum) and nonferrous (Nonferrous metal mines are facilities that extract nonferrous metals, such as gold, silver, copper, zinc, and lead) metal mines in the United States.

Date of Government Version: 05/06/2020
Date Data Arrived at EDR: 05/27/2020
Date Made Active in Reports: 08/13/2020
Number of Days to Update: 78
Source: USGS
Telephone: 703-648-7709
Last EDR Contact: 05/27/2021
Next Scheduled EDR Contact: 09/06/2021
Data Release Frequency: Varies
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Packet Pg. 1073 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) US MINES 3: Active Mines & Mineral Plants Database Listing Active Mines and Mineral Processing Plant operations for commodities monitored by the Minerals Information Team of the USGS.

Date of Government Version: 04/14/2011
Date Data Arrived at EDR: 06/08/2011
Date Made Active in Reports: 09/13/2011
Number of Days to Update: 97
Source: USGS
Telephone: 703-648-7709
Last EDR Contact: 05/27/2021
Next Scheduled EDR Contact: 09/06/2021
Data Release Frequency: Varies
ABANDONED MINES: Abandoned Mines
An inventory of land and water impacted by past mining (primarily coal mining) is maintained by OSMRE to provide information needed to implement the Surface Mining Control and Reclamation Act of 1977 (SMCRA). The inventory contains information on the location, type, and extent of AML impacts, as well as, information on the cost associated with the reclamation of those problems. The inventory is based upon field surveys by State, Tribal, and OSMRE program officials. It is dynamic to the extent that it is modified as new problems are identified and existing problems are reclaimed.

Date of Government Version: 12/11/2020
Date Data Arrived at EDR: 12/11/2020
Date Made Active in Reports: 03/02/2021
Number of Days to Update: 81
Source: Department of Interior
Telephone: 202-208-2609
Last EDR Contact: 06/14/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Quarterly
FINDS: Facility Index System/Facility Registry System
Facility Index System. FINDS contains both facility information and ’pointers’ to other sources that contain more detail. EDR includes the following FINDS databases in this report: PCS (Permit Compliance System), AIRS (Aerometric Information Retrieval System), DOCKET (Enforcement Docket used to manage and track information on civil judicial enforcement cases for all environmental statutes), FURS (Federal Underground Injection Control), C-DOCKET (Criminal Docket System used to track criminal enforcement actions for all environmental statutes), FFIS (Federal Facilities Information System), STATE (State Environmental Laws and Statutes), and PADS (PCB Activity Data System).

Date of Government Version: 02/03/2021
Date Data Arrived at EDR: 03/03/2021
Date Made Active in Reports: 04/05/2021
Number of Days to Update: 33
Source: EPA
Telephone: (415) 947-8000
Last EDR Contact: 05/18/2021
Next Scheduled EDR Contact: 09/13/2021
Data Release Frequency: Quarterly
UXO: Unexploded Ordnance Sites
A listing of unexploded ordnance site locations
Date of Government Version: 12/31/2018
Date Data Arrived at EDR: 07/02/2020
Date Made Active in Reports: 09/17/2020
Number of Days to Update: 77
Source: Department of Defense
Telephone: 703-704-1564
Last EDR Contact: 04/13/2021
Next Scheduled EDR Contact: 07/26/2021
Data Release Frequency: Varies
ECHO: Enforcement & Compliance History Information
ECHO provides integrated compliance and enforcement information for about 800,000 regulated facilities nationwide.

Date of Government Version: 01/02/2021
Date Data Arrived at EDR: 01/08/2021
Date Made Active in Reports: 03/22/2021
Number of Days to Update: 73
Source: Environmental Protection Agency
Telephone: 202-564-2280
Last EDR Contact: 04/06/2021
Next Scheduled EDR Contact: 07/19/2021
Data Release Frequency: Quarterly
DOCKET HWC: Hazardous Waste Compliance Docket Listing
A complete list of the Federal Agency Hazardous Waste Compliance Docket Facilities.

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Packet Pg. 1074 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Date of Government Version: 11/03/2020
Date Data Arrived at EDR: 11/17/2020
Date Made Active in Reports: 02/09/2021
Number of Days to Update: 84
Source: Environmental Protection Agency
Telephone: 202-564-0527
Last EDR Contact: 05/21/2021
Next Scheduled EDR Contact: 09/06/2021
Data Release Frequency: Varies
FUELS PROGRAM: EPA Fuels Program Registered Listing
This listing includes facilities that are registered under the Part 80 (Code of Federal Regulations) EPA Fuels Programs. All companies now are required to submit new and updated registrations.

Date of Government Version: 02/17/2021
Date Data Arrived at EDR: 02/17/2021
Date Made Active in Reports: 03/22/2021
Number of Days to Update: 33
Source: EPA
Telephone: 800-385-6164
Last EDR Contact: 05/14/2021
Next Scheduled EDR Contact: 08/30/2021
Data Release Frequency: Quarterly
CA BOND EXP. PLAN: Bond Expenditure Plan
Department of Health Services developed a site-specific expenditure plan as the basis for an appropriation of Hazardous Substance Cleanup Bond Act funds. It is not updated.

Date of Government Version: 01/01/1989
Date Data Arrived at EDR: 07/27/1994
Date Made Active in Reports: 08/02/1994
Number of Days to Update: 6
Source: Department of Health Services
Telephone: 916-255-2118
Last EDR Contact: 05/31/1994
Next Scheduled EDR Contact: N/A
Data Release Frequency: No Update Planned
CORTESE: "Cortese" Hazardous Waste & Substances Sites List The sites for the list are designated by the State Water Resource Control Board (LUST), the Integrated Waste Board (SWF/LS), and the Department of Toxic Substances Control (Cal-Sites).

Date of Government Version: 03/22/2021
Date Data Arrived at EDR: 03/23/2021
Date Made Active in Reports: 06/10/2021
Number of Days to Update: 79
Source: CAL EPA/Office of Emergency Information
Telephone: 916-323-3400
Last EDR Contact: 03/23/2021
Next Scheduled EDR Contact: 07/05/2021
Data Release Frequency: Quarterly
CUPA LIVERMORE-PLEASANTON: CUPA Facility Listing
list of facilities associated with the various CUPA programs in Livermore-Pleasanton Date of Government Version: 05/01/2019
Date Data Arrived at EDR: 05/14/2019
Date Made Active in Reports: 07/17/2019
Number of Days to Update: 64
Source: Livermore-Pleasanton Fire Department
Telephone: 925-454-2361
Last EDR Contact: 05/14/2021
Next Scheduled EDR Contact: 08/23/2021
Data Release Frequency: Varies
DRYCLEANERS: Cleaner Facilities
A list of drycleaner related facilities that have EPA ID numbers. These are facilities with certain SIC codes:
power laundries, family and commercial; garment pressing and cleaner’s agents; linen supply; coin-operated laundries and cleaning; drycleaning plants, except rugs; carpet and upholster cleaning; industrial launderers; laundry and garment services.

Date of Government Version: 03/01/2021
Date Data Arrived at EDR: 03/04/2021
Date Made Active in Reports: 05/20/2021
Number of Days to Update: 77
Source: Department of Toxic Substance Control
Telephone: 916-327-4498
Last EDR Contact: 05/25/2021
Next Scheduled EDR Contact: 09/13/2021
Data Release Frequency: Annually
DRYCLEAN AVAQMD: Antelope Valley Air Quality Management District Drycleaner Listing A listing of dry cleaners in the Antelope Valley Air Quality Management District.

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Packet Pg. 1075 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Date of Government Version: 02/26/2021
Date Data Arrived at EDR: 03/02/2021
Date Made Active in Reports: 05/19/2021
Number of Days to Update: 78
Source: Antelope Valley Air Quality Management District Telephone: 661-723-8070
Last EDR Contact: 05/25/2021
Next Scheduled EDR Contact: 09/13/2021
Data Release Frequency: Varies
DRYCLEAN SOUTH COAST: South Coast Air Quality Management District Drycleaner Listing A listing of dry cleaners in the South Coast Air Quality Management District Date of Government Version: 02/23/2021
Date Data Arrived at EDR: 02/25/2021
Date Made Active in Reports: 05/19/2021
Number of Days to Update: 83
Source: South Coast Air Quality Management District
Telephone: 909-396-3211
Last EDR Contact: 05/18/2021
Next Scheduled EDR Contact: 09/06/2021
Data Release Frequency: Varies
EMI: Emissions Inventory Data
Toxics and criteria pollutant emissions data collected by the ARB and local air pollution agencies.

Date of Government Version: 12/31/2018
Date Data Arrived at EDR: 06/16/2020
Date Made Active in Reports: 08/28/2020
Number of Days to Update: 73
Source: California Air Resources Board
Telephone: 916-322-2990
Last EDR Contact: 06/10/2021
Next Scheduled EDR Contact: 09/27/2021
Data Release Frequency: Varies
ENF: Enforcement Action Listing
A listing of Water Board Enforcement Actions. Formal is everything except Oral/Verbal Communication, Notice of Violation, Expedited Payment Letter, and Staff Enforcement Letter.

Date of Government Version: 12/31/2020
Date Data Arrived at EDR: 01/20/2021
Date Made Active in Reports: 04/09/2021
Number of Days to Update: 79
Source: State Water Resoruces Control Board
Telephone: 916-445-9379
Last EDR Contact: 04/20/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
Financial Assurance 1: Financial Assurance Information Listing Financial Assurance information
Date of Government Version: 01/25/2021
Date Data Arrived at EDR: 01/26/2021
Date Made Active in Reports: 04/13/2021
Number of Days to Update: 77
Source: Department of Toxic Substances Control
Telephone: 916-255-3628
Last EDR Contact: 04/14/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
Financial Assurance 2: Financial Assurance Information Listing A listing of financial assurance information for solid waste facilities. Financial assurance is intended to ensure that resources are available to pay for the cost of closure, post-closure care, and corrective measures if the owner or operator of a regulated facility is unable or unwilling to pay.

Date of Government Version: 02/08/2021
Date Data Arrived at EDR: 02/12/2021
Date Made Active in Reports: 05/05/2021
Number of Days to Update: 82
Source: California Integrated Waste Management Board
Telephone: 916-341-6066
Last EDR Contact: 05/05/2021
Next Scheduled EDR Contact: 08/23/2021
Data Release Frequency: Varies
HAZNET: Facility and Manifest Data
Facility and Manifest Data. The data is extracted from the copies of hazardous waste manifests received each year by the DTSC. The annual volume of manifests is typically 700,000 - 1,000,000 annually, representing approximately 350,000 - 500,000 shipments. Data are from the manifests submitted without correction, and therefore many contain some invalid values for data elements such as generator ID, TSD ID, waste category, and disposal method. This database begins with calendar year 1993.

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Packet Pg. 1076 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Date of Government Version: 12/31/2019
Date Data Arrived at EDR: 04/15/2020
Date Made Active in Reports: 07/02/2020
Number of Days to Update: 78
Source: California Environmental Protection Agency
Telephone: 916-255-1136
Last EDR Contact: 04/09/2021
Next Scheduled EDR Contact: 07/19/2021
Data Release Frequency: Annually
ICE: ICE
Contains data pertaining to the Permitted Facilities with Inspections / Enforcements sites tracked in Envirostor.

Date of Government Version: 02/16/2021
Date Data Arrived at EDR: 02/17/2021
Date Made Active in Reports: 05/07/2021
Number of Days to Update: 79
Source: Department of Toxic Subsances Control
Telephone: 877-786-9427
Last EDR Contact: 05/14/2021
Next Scheduled EDR Contact: 08/30/2021
Data Release Frequency: Quarterly
HIST CORTESE: Hazardous Waste & Substance Site List
The sites for the list are designated by the State Water Resource Control Board [LUST], the Integrated Waste Board [SWF/LS], and the Department of Toxic Substances Control [CALSITES]. This listing is no longer updated by the state agency.

Date of Government Version: 04/01/2001
Date Data Arrived at EDR: 01/22/2009
Date Made Active in Reports: 04/08/2009
Number of Days to Update: 76
Source: Department of Toxic Substances Control
Telephone: 916-323-3400
Last EDR Contact: 01/22/2009
Next Scheduled EDR Contact: N/A
Data Release Frequency: No Update Planned
HWP: EnviroStor Permitted Facilities Listing
Detailed information on permitted hazardous waste facilities and corrective action ("cleanups") tracked in EnviroStor.

Date of Government Version: 02/16/2021
Date Data Arrived at EDR: 02/17/2021
Date Made Active in Reports: 05/10/2021
Number of Days to Update: 82
Source: Department of Toxic Substances Control
Telephone: 916-323-3400
Last EDR Contact: 05/14/2021
Next Scheduled EDR Contact: 08/30/2021
Data Release Frequency: Quarterly
HWT: Registered Hazardous Waste Transporter Database
A listing of hazardous waste transporters. In California, unless specifically exempted, it is unlawful for any person to transport hazardous wastes unless the person holds a valid registration issued by DTSC. A hazardous waste transporter registration is valid for one year and is assigned a unique registration number.

Date of Government Version: 01/05/2021
Date Data Arrived at EDR: 01/05/2021
Date Made Active in Reports: 03/18/2021
Number of Days to Update: 72
Source: Department of Toxic Substances Control
Telephone: 916-440-7145
Last EDR Contact: 04/06/2021
Next Scheduled EDR Contact: 07/19/2021
Data Release Frequency: Quarterly
MINES: Mines Site Location Listing
A listing of mine site locations from the Office of Mine Reclamation.

Date of Government Version: 03/08/2021
Date Data Arrived at EDR: 03/09/2021
Date Made Active in Reports: 03/30/2021
Number of Days to Update: 21
Source: Department of Conservation
Telephone: 916-322-1080
Last EDR Contact: 06/03/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Quarterly
MWMP: Medical Waste Management Program Listing
The Medical Waste Management Program (MWMP) ensures the proper handling and disposal of medical waste by permitting and inspecting medical waste Offsite Treatment Facilities (PDF) and Transfer Stations (PDF) throughout the state. MWMP also oversees all Medical Waste Transporters.

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Packet Pg. 1077 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Date of Government Version: 01/29/2021
Date Data Arrived at EDR: 03/03/2021
Date Made Active in Reports: 05/20/2021
Number of Days to Update: 78
Source: Department of Public Health
Telephone: 916-558-1784
Last EDR Contact: 05/28/2021
Next Scheduled EDR Contact: 09/13/2021
Data Release Frequency: Varies
NPDES: NPDES Permits Listing
A listing of NPDES permits, including stormwater.

Date of Government Version: 02/08/2021
Date Data Arrived at EDR: 02/09/2021
Date Made Active in Reports: 05/04/2021
Number of Days to Update: 84
Source: State Water Resources Control Board
Telephone: 916-445-9379
Last EDR Contact: 05/11/2021
Next Scheduled EDR Contact: 08/23/2021
Data Release Frequency: Quarterly
PEST LIC: Pesticide Regulation Licenses Listing
A listing of licenses and certificates issued by the Department of Pesticide Regulation. The DPR issues licenses and/or certificates to: Persons and businesses that apply or sell pesticides; Pest control dealers and brokers; Persons who advise on agricultural pesticide applications.

Date of Government Version: 03/02/2021
Date Data Arrived at EDR: 03/03/2021
Date Made Active in Reports: 05/20/2021
Number of Days to Update: 78
Source: Department of Pesticide Regulation
Telephone: 916-445-4038
Last EDR Contact: 05/28/2021
Next Scheduled EDR Contact: 09/13/2021
Data Release Frequency: Quarterly
PROC: Certified Processors Database
A listing of certified processors.

Date of Government Version: 03/09/2021
Date Data Arrived at EDR: 03/09/2021
Date Made Active in Reports: 03/31/2021
Number of Days to Update: 22
Source: Department of Conservation
Telephone: 916-323-3836
Last EDR Contact: 06/04/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Quarterly
NOTIFY 65: Proposition 65 Records
Listings of all Proposition 65 incidents reported to counties by the State Water Resources Control Board and the Regional Water Quality Control Board. This database is no longer updated by the reporting agency.

Date of Government Version: 03/12/2021
Date Data Arrived at EDR: 03/16/2021
Date Made Active in Reports: 06/01/2021
Number of Days to Update: 77
Source: State Water Resources Control Board
Telephone: 916-445-3846
Last EDR Contact: 06/08/2021
Next Scheduled EDR Contact: 09/27/2021
Data Release Frequency: No Update Planned
UIC: UIC Listing
A listing of wells identified as underground injection wells, in the California Oil and Gas Wells database.

Date of Government Version: 03/08/2021
Date Data Arrived at EDR: 03/09/2021
Date Made Active in Reports: 03/31/2021
Number of Days to Update: 22
Source: Deaprtment of Conservation
Telephone: 916-445-2408
Last EDR Contact: 06/03/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Varies
UIC GEO: Underground Injection Control Sites (GEOTRACKER) Underground control injection sites
Date of Government Version: 03/08/2021
Date Data Arrived at EDR: 03/09/2021
Date Made Active in Reports: 03/30/2021
Number of Days to Update: 21
Source: State Water Resource Control Board
Telephone: 866-480-1028
Last EDR Contact: 06/03/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Varies
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Packet Pg. 1078 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) WASTEWATER PITS: Oil Wastewater Pits Listing
Water officials discovered that oil producers have been dumping chemical-laden wastewater into hundreds of unlined pits that are operating without proper permits. Inspections completed by the Central Valley Regional Water Quality Control Board revealed the existence of previously unidentified waste sites. The water boards review found that more than one-third of the region’s active disposal pits are operating without permission.

Date of Government Version: 11/19/2019
Date Data Arrived at EDR: 01/07/2020
Date Made Active in Reports: 03/09/2020
Number of Days to Update: 62
Source: RWQCB, Central Valley Region
Telephone: 559-445-5577
Last EDR Contact: 04/09/2021
Next Scheduled EDR Contact: 07/19/2021
Data Release Frequency: Varies
WDS: Waste Discharge System
Sites which have been issued waste discharge requirements.

Date of Government Version: 06/19/2007
Date Data Arrived at EDR: 06/20/2007
Date Made Active in Reports: 06/29/2007
Number of Days to Update: 9
Source: State Water Resources Control Board
Telephone: 916-341-5227
Last EDR Contact: 05/14/2021
Next Scheduled EDR Contact: 08/30/2021
Data Release Frequency: No Update Planned
WIP: Well Investigation Program Case List
Well Investigation Program case in the San Gabriel and San Fernando Valley area.

Date of Government Version: 07/03/2009
Date Data Arrived at EDR: 07/21/2009
Date Made Active in Reports: 08/03/2009
Number of Days to Update: 13
Source: Los Angeles Water Quality Control Board
Telephone: 213-576-6726
Last EDR Contact: 06/15/2021
Next Scheduled EDR Contact: 10/04/2021
Data Release Frequency: No Update Planned
MILITARY PRIV SITES: Military Privatized Sites (GEOTRACKER) Military privatized sites
Date of Government Version: 03/08/2021
Date Data Arrived at EDR: 03/09/2021
Date Made Active in Reports: 03/30/2021
Number of Days to Update: 21
Source: State Water Resources Control Board
Telephone: 866-480-1028
Last EDR Contact: 06/03/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Varies
PROJECT: Project Sites (GEOTRACKER)
Projects sites
Date of Government Version: 03/08/2021
Date Data Arrived at EDR: 03/09/2021
Date Made Active in Reports: 03/30/2021
Number of Days to Update: 21
Source: State Water Resources Control Board
Telephone: 866-480-1028
Last EDR Contact: 06/03/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Varies
WDR: Waste Discharge Requirements Listing
In general, the Waste Discharge Requirements (WDRs) Program (sometimes also referred to as the "Non Chapter 15 (Non 15) Program") regulates point discharges that are exempt pursuant to Subsection 20090 of Title 27 and not subject to the Federal Water Pollution Control Act. Exemptions from Title 27 may be granted for nine categories of discharges (e.g., sewage, wastewater, etc.) that meet, and continue to meet, the preconditions listed for each specific exemption. The scope of the WDRs Program also includes the discharge of wastes classified as inert, pursuant to section 20230 of Title 27.

Date of Government Version: 03/09/2021
Date Data Arrived at EDR: 03/09/2021
Date Made Active in Reports: 03/31/2021
Number of Days to Update: 22
Source: State Water Resources Control Board
Telephone: 916-341-5810
Last EDR Contact: 06/07/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Quarterly
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Packet Pg. 1079 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) CIWQS: California Integrated Water Quality System
The California Integrated Water Quality System (CIWQS) is a computer system used by the State and Regional Water Quality Control Boards to track information about places of environmental interest, manage permits and other orders, track inspections, and manage violations and enforcement activities.

Date of Government Version: 11/30/2020
Date Data Arrived at EDR: 12/01/2020
Date Made Active in Reports: 02/12/2021
Number of Days to Update: 73
Source: State Water Resources Control Board
Telephone: 866-794-4977
Last EDR Contact: 05/19/2021
Next Scheduled EDR Contact: 09/13/2021
Data Release Frequency: Varies
CERS: CalEPA Regulated Site Portal Data
The CalEPA Regulated Site Portal database combines data about environmentally regulated sites and facilities in California into a single database. It combines data from a variety of state and federal databases, and provides an overview of regulated activities across the spectrum of environmental programs for any given location in California.

These activities include hazardous materials and waste, state and federal cleanups, impacted ground and surface waters, and toxic materials
Date of Government Version: 01/20/2021
Date Data Arrived at EDR: 01/20/2021
Date Made Active in Reports: 04/08/2021
Number of Days to Update: 78
Source: California Environmental Protection Agency
Telephone: 916-323-2514
Last EDR Contact: 04/20/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
NON-CASE INFO: Non-Case Information Sites (GEOTRACKER)
Non-Case Information sites
Date of Government Version: 03/08/2021
Date Data Arrived at EDR: 03/09/2021
Date Made Active in Reports: 03/30/2021
Number of Days to Update: 21
Source: State Water Resources Control Board
Telephone: 866-480-1028
Last EDR Contact: 06/03/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Varies
OTHER OIL GAS: Other Oil & Gas Projects Sites (GEOTRACKER) Other Oil & Gas Projects sites
Date of Government Version: 03/08/2021
Date Data Arrived at EDR: 03/09/2021
Date Made Active in Reports: 03/30/2021
Number of Days to Update: 21
Source: State Water Resources Control Board
Telephone: 866-480-1028
Last EDR Contact: 06/03/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Varies
PROD WATER PONDS: Produced Water Ponds Sites (GEOTRACKER) Produced water ponds sites
Date of Government Version: 03/08/2021
Date Data Arrived at EDR: 03/09/2021
Date Made Active in Reports: 03/30/2021
Number of Days to Update: 21
Source: State Water Resources Control Board
Telephone: 866-480-1028
Last EDR Contact: 06/03/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Varies
SAMPLING POINT: Sampling Point ? Public Sites (GEOTRACKER) Sampling point - public sites
Date of Government Version: 03/08/2021
Date Data Arrived at EDR: 03/09/2021
Date Made Active in Reports: 03/30/2021
Number of Days to Update: 21
Source: State Water Resources Control Board
Telephone: 866-480-1028
Last EDR Contact: 06/03/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Varies
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Packet Pg. 1080 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) WELL STIM PROJ: Well Stimulation Project (GEOTRACKER)
Includes areas of groundwater monitoring plans, a depiction of the monitoring network, and the facilities, boundaries, and subsurface characteristics of the oilfield and the features (oil and gas wells, produced water ponds, UIC wells, water supply wells, etc?) being monitored
Date of Government Version: 03/08/2021
Date Data Arrived at EDR: 03/09/2021
Date Made Active in Reports: 03/30/2021
Number of Days to Update: 21
Source: State Water Resources Control Board
Telephone: 866-480-1028
Last EDR Contact: 06/03/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Varies
PCS: Permit Compliance System
PCS is a computerized management information system that contains data on National Pollutant Discharge Elimination System (NPDES) permit holding facilities. PCS tracks the permit, compliance, and enforcement status of NPDES facilities.

Date of Government Version: 07/14/2011
Date Data Arrived at EDR: 08/05/2011
Date Made Active in Reports: 09/29/2011
Number of Days to Update: 55
Source: EPA, Office of Water
Telephone: 202-564-2496
Last EDR Contact: 03/31/2021
Next Scheduled EDR Contact: 07/19/2021
Data Release Frequency: Semi-Annually
PCS INACTIVE: Listing of Inactive PCS Permits
An inactive permit is a facility that has shut down or is no longer discharging.

Date of Government Version: 11/05/2014
Date Data Arrived at EDR: 01/06/2015
Date Made Active in Reports: 05/06/2015
Number of Days to Update: 120
Source: EPA
Telephone: 202-564-2496
Last EDR Contact: 03/31/2021
Next Scheduled EDR Contact: 07/19/2021
Data Release Frequency: Semi-Annually
PCS ENF: Enforcement data
No description is available for this data
Date of Government Version: 12/31/2014
Date Data Arrived at EDR: 02/05/2015
Date Made Active in Reports: 03/06/2015
Number of Days to Update: 29
Source: EPA
Telephone: 202-564-2497
Last EDR Contact: 03/31/2021
Next Scheduled EDR Contact: 07/19/2021
Data Release Frequency: Varies
MINES MRDS: Mineral Resources Data System
Mineral Resources Data System
Date of Government Version: 04/06/2018
Date Data Arrived at EDR: 10/21/2019
Date Made Active in Reports: 10/24/2019
Number of Days to Update: 3
Source: USGS
Telephone: 703-648-6533
Last EDR Contact: 05/27/2021
Next Scheduled EDR Contact: 09/06/2021
Data Release Frequency: Varies
HWTS: Hazardous Waste Tracking System
DTSC maintains the Hazardous Waste Tracking System that stores ID number information since the early 1980s and manifest data since 1993. The system collects both manifest copies from the generator and destination facility.

Date of Government Version: 04/08/2021
Date Data Arrived at EDR: 04/09/2021
Date Made Active in Reports: 04/20/2021
Number of Days to Update: 11
Source: Department of Toxic Substances Control
Telephone: 916-324-2444
Last EDR Contact: 04/05/2021
Next Scheduled EDR Contact: 07/19/2021
Data Release Frequency: Varies
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Packet Pg. 1081 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

EDR HIGH RISK HISTORICAL RECORDS
EDR Exclusive Records
EDR MGP: EDR Proprietary Manufactured Gas Plants
The EDR Proprietary Manufactured Gas Plant Database includes records of coal gas plants (manufactured gas plants) compiled by EDR’s researchers. Manufactured gas sites were used in the United States from the 1800’s to 1950’s to produce a gas that could be distributed and used as fuel. These plants used whale oil, rosin, coal, or a mixture of coal, oil, and water that also produced a significant amount of waste. Many of the byproducts of the gas production, such as coal tar (oily waste containing volatile and non-volatile chemicals), sludges, oils and other compounds are potentially hazardous to human health and the environment. The byproduct from this process was frequently disposed of directly at the plant site and can remain or spread slowly, serving as a continuous source of soil and groundwater contamination.

Date of Government Version: N/A
Date Data Arrived at EDR: N/A
Date Made Active in Reports: N/A
Number of Days to Update: N/A
Source: EDR, Inc.

Telephone: N/A
Last EDR Contact: N/A
Next Scheduled EDR Contact: N/A
Data Release Frequency: No Update Planned
EDR Hist Auto: EDR Exclusive Historical Auto Stations
EDR has searched selected national collections of business directories and has collected listings of potential gas station/filling station/service station sites that were available to EDR researchers. EDR’s review was limited to those categories of sources that might, in EDR’s opinion, include gas station/filling station/service station establishments. The categories reviewed included, but were not limited to gas, gas station, gasoline station, filling station, auto, automobile repair, auto service station, service station, etc. This database falls within a category of information EDR classifies as "High Risk Historical Records", or HRHR. EDR’s HRHR effort presents unique and sometimes proprietary data about past sites and operations that typically create environmental concerns, but may not show up in current government records searches.

Date of Government Version: N/A
Date Data Arrived at EDR: N/A
Date Made Active in Reports: N/A
Number of Days to Update: N/A
Source: EDR, Inc.

Telephone: N/A
Last EDR Contact: N/A
Next Scheduled EDR Contact: N/A
Data Release Frequency: Varies
EDR Hist Cleaner: EDR Exclusive Historical Cleaners
EDR has searched selected national collections of business directories and has collected listings of potential dry cleaner sites that were available to EDR researchers. EDR’s review was limited to those categories of sources that might, in EDR’s opinion, include dry cleaning establishments. The categories reviewed included, but were not limited to dry cleaners, cleaners, laundry, laundromat, cleaning/laundry, wash & dry etc. This database falls within a category of information EDR classifies as "High Risk Historical Records", or HRHR. EDR’s HRHR effort presents unique and sometimes proprietary data about past sites and operations that typically create environmental concerns, but may not show up in current government records searches.

Date of Government Version: N/A
Date Data Arrived at EDR: N/A
Date Made Active in Reports: N/A
Number of Days to Update: N/A
Source: EDR, Inc.

Telephone: N/A
Last EDR Contact: N/A
Next Scheduled EDR Contact: N/A
Data Release Frequency: Varies

EDR RECOVERED GOVERNMENT ARCHIVES
Exclusive Recovered Govt. Archives
RGA LF: Recovered Government Archive Solid Waste Facilities List The EDR Recovered Government Archive Landfill database provides a list of landfills derived from historical databases and includes many records that no longer appear in current government lists. Compiled from Records formerly available from the Department of Resources Recycling and Recovery in California.

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Packet Pg. 1082 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Date of Government Version: N/A
Date Data Arrived at EDR: 07/01/2013
Date Made Active in Reports: 01/13/2014
Number of Days to Update: 196
Source: Department of Resources Recycling and Recovery
Telephone: N/A
Last EDR Contact: 06/01/2012
Next Scheduled EDR Contact: N/A
Data Release Frequency: Varies
RGA LUST: Recovered Government Archive Leaking Underground Storage Tank The EDR Recovered Government Archive Leaking Underground Storage Tank database provides a list of LUST incidents derived from historical databases and includes many records that no longer appear in current government lists.

Compiled from Records formerly available from the State Water Resources Control Board in California.

Date of Government Version: N/A
Date Data Arrived at EDR: 07/01/2013
Date Made Active in Reports: 12/30/2013
Number of Days to Update: 182
Source: State Water Resources Control Board
Telephone: N/A
Last EDR Contact: 06/01/2012
Next Scheduled EDR Contact: N/A
Data Release Frequency: Varies

COUNTY RECORDS
ALAMEDA COUNTY:

CS ALAMEDA: Contaminated Sites
A listing of contaminated sites overseen by the Toxic Release Program (oil and groundwater contamination from chemical releases and spills) and the Leaking Underground Storage Tank Program (soil and ground water contamination from leaking petroleum USTs).

Date of Government Version: 01/09/2019
Date Data Arrived at EDR: 01/11/2019
Date Made Active in Reports: 03/05/2019
Number of Days to Update: 53
Source: Alameda County Environmental Health Services
Telephone: 510-567-6700
Last EDR Contact: 03/31/2021
Next Scheduled EDR Contact: 07/19/2021
Data Release Frequency: Semi-Annually
UST ALAMEDA: Underground Tanks
Underground storage tank sites located in Alameda county.

Date of Government Version: 03/17/2021
Date Data Arrived at EDR: 03/18/2021
Date Made Active in Reports: 03/25/2021
Number of Days to Update: 7
Source: Alameda County Environmental Health Services
Telephone: 510-567-6700
Last EDR Contact: 03/17/2021
Next Scheduled EDR Contact: 07/19/2021
Data Release Frequency: Semi-Annually
AMADOR COUNTY:

CUPA AMADOR: CUPA Facility List
Cupa Facility List
Date of Government Version: 02/02/2021
Date Data Arrived at EDR: 02/04/2021
Date Made Active in Reports: 04/23/2021
Number of Days to Update: 78
Source: Amador County Environmental Health
Telephone: 209-223-6439
Last EDR Contact: 05/25/2021
Next Scheduled EDR Contact: 08/16/2021
Data Release Frequency: Varies
BUTTE COUNTY:

CUPA BUTTE: CUPA Facility Listing
Cupa facility list.

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Packet Pg. 1083 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Date of Government Version: 04/21/2017
Date Data Arrived at EDR: 04/25/2017
Date Made Active in Reports: 08/09/2017
Number of Days to Update: 106
Source: Public Health Department
Telephone: 530-538-7149
Last EDR Contact: 03/31/2021
Next Scheduled EDR Contact: 07/19/2021
Data Release Frequency: No Update Planned
CALVERAS COUNTY:

CUPA CALVERAS: CUPA Facility Listing
Cupa Facility Listing
Date of Government Version: 12/15/2020
Date Data Arrived at EDR: 12/16/2020
Date Made Active in Reports: 12/24/2020
Number of Days to Update: 8
Source: Calveras County Environmental Health
Telephone: 209-754-6399
Last EDR Contact: 06/15/2021
Next Scheduled EDR Contact: 10/04/2021
Data Release Frequency: Quarterly
COLUSA COUNTY:

CUPA COLUSA: CUPA Facility List
Cupa facility list.

Date of Government Version: 04/06/2020
Date Data Arrived at EDR: 04/23/2020
Date Made Active in Reports: 07/10/2020
Number of Days to Update: 78
Source: Health & Human Services
Telephone: 530-458-0396
Last EDR Contact: 04/27/2021
Next Scheduled EDR Contact: 08/16/2021
Data Release Frequency: Semi-Annually
CONTRA COSTA COUNTY:

SL CONTRA COSTA: Site List
List includes sites from the underground tank, hazardous waste generator and business plan/2185 programs.

Date of Government Version: 01/25/2021
Date Data Arrived at EDR: 01/26/2021
Date Made Active in Reports: 04/16/2021
Number of Days to Update: 80
Source: Contra Costa Health Services Department
Telephone: 925-646-2286
Last EDR Contact: 04/20/2021
Next Scheduled EDR Contact: 08/09/2021
Data Release Frequency: Semi-Annually
DEL NORTE COUNTY:

CUPA DEL NORTE: CUPA Facility List
Cupa Facility list
Date of Government Version: 12/17/2020
Date Data Arrived at EDR: 01/28/2021
Date Made Active in Reports: 04/16/2021
Number of Days to Update: 78
Source: Del Norte County Environmental Health Division
Telephone: 707-465-0426
Last EDR Contact: 04/21/2021
Next Scheduled EDR Contact: 08/09/2021
Data Release Frequency: Varies
EL DORADO COUNTY:

CUPA EL DORADO: CUPA Facility List
CUPA facility list.

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Packet Pg. 1084 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Date of Government Version: 02/09/2021
Date Data Arrived at EDR: 02/11/2021
Date Made Active in Reports: 05/05/2021
Number of Days to Update: 83
Source: El Dorado County Environmental Management Department Telephone: 530-621-6623
Last EDR Contact: 05/05/2021
Next Scheduled EDR Contact: 08/09/2021
Data Release Frequency: Varies
FRESNO COUNTY:

CUPA FRESNO: CUPA Resources List
Certified Unified Program Agency. CUPA’s are responsible for implementing a unified hazardous materials and hazardous waste management regulatory program. The agency provides oversight of businesses that deal with hazardous materials, operate underground storage tanks or aboveground storage tanks.

Date of Government Version: 01/14/2021
Date Data Arrived at EDR: 01/15/2021
Date Made Active in Reports: 04/05/2021
Number of Days to Update: 80
Source: Dept. of Community Health
Telephone: 559-445-3271
Last EDR Contact: 04/01/2021
Next Scheduled EDR Contact: 07/12/2021
Data Release Frequency: Semi-Annually
GLENN COUNTY:

CUPA GLENN: CUPA Facility List
Cupa facility list
Date of Government Version: 01/22/2018
Date Data Arrived at EDR: 01/24/2018
Date Made Active in Reports: 03/14/2018
Number of Days to Update: 49
Source: Glenn County Air Pollution Control District
Telephone: 830-934-6500
Last EDR Contact: 04/14/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: No Update Planned
HUMBOLDT COUNTY:

CUPA HUMBOLDT: CUPA Facility List
CUPA facility list.

Date of Government Version: 05/17/2021
Date Data Arrived at EDR: 05/18/2021
Date Made Active in Reports: 05/20/2021
Number of Days to Update: 2
Source: Humboldt County Environmental Health
Telephone: N/A
Last EDR Contact: 05/10/2021
Next Scheduled EDR Contact: 08/30/2021
Data Release Frequency: Semi-Annually
IMPERIAL COUNTY:

CUPA IMPERIAL: CUPA Facility List
Cupa facility list.

Date of Government Version: 01/19/2021
Date Data Arrived at EDR: 01/20/2021
Date Made Active in Reports: 04/08/2021
Number of Days to Update: 78
Source: San Diego Border Field Office
Telephone: 760-339-2777
Last EDR Contact: 04/14/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
INYO COUNTY:

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Packet Pg. 1085 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) CUPA INYO: CUPA Facility List
Cupa facility list.

Date of Government Version: 04/02/2018
Date Data Arrived at EDR: 04/03/2018
Date Made Active in Reports: 06/14/2018
Number of Days to Update: 72
Source: Inyo County Environmental Health Services
Telephone: 760-878-0238
Last EDR Contact: 05/11/2021
Next Scheduled EDR Contact: 08/30/2021
Data Release Frequency: Varies
KERN COUNTY:

CUPA KERN: CUPA Facility List
A listing of sites included in the Kern County Hazardous Material Business Plan.

Date of Government Version: 10/29/2020
Date Data Arrived at EDR: 10/30/2020
Date Made Active in Reports: 01/15/2021
Number of Days to Update: 77
Source: Kern County Public Health
Telephone: 661-321-3000
Last EDR Contact: 04/27/2021
Next Scheduled EDR Contact: 08/16/2021
Data Release Frequency: Varies
UST KERN: Underground Storage Tank Sites & Tank Listing Kern County Sites and Tanks Listing.

Date of Government Version: 01/19/2021
Date Data Arrived at EDR: 01/21/2021
Date Made Active in Reports: 01/28/2021
Number of Days to Update: 7
Source: Kern County Environment Health Services Department Telephone: 661-862-8700
Last EDR Contact: 05/25/2021
Next Scheduled EDR Contact: 08/16/2021
Data Release Frequency: Quarterly
KINGS COUNTY:

CUPA KINGS: CUPA Facility List
A listing of sites included in the county’s Certified Unified Program Agency database. California’s Secretary for Environmental Protection established the unified hazardous materials and hazardous waste regulatory program as required by chapter 6.11 of the California Health and Safety Code. The Unified Program consolidates the administration, permits, inspections, and enforcement activities.

Date of Government Version: 12/03/2020
Date Data Arrived at EDR: 01/26/2021
Date Made Active in Reports: 04/14/2021
Number of Days to Update: 78
Source: Kings County Department of Public Health
Telephone: 559-584-1411
Last EDR Contact: 05/25/2021
Next Scheduled EDR Contact: 08/30/2021
Data Release Frequency: Varies
LAKE COUNTY:

CUPA LAKE: CUPA Facility List
Cupa facility list
Date of Government Version: 02/10/2021
Date Data Arrived at EDR: 02/12/2021
Date Made Active in Reports: 03/11/2021
Number of Days to Update: 27
Source: Lake County Environmental Health
Telephone: 707-263-1164
Last EDR Contact: 04/07/2021
Next Scheduled EDR Contact: 07/26/2021
Data Release Frequency: Varies
LASSEN COUNTY:

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Packet Pg. 1086 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) CUPA LASSEN: CUPA Facility List
Cupa facility list
Date of Government Version: 07/31/2020
Date Data Arrived at EDR: 08/21/2020
Date Made Active in Reports: 11/09/2020
Number of Days to Update: 80
Source: Lassen County Environmental Health
Telephone: 530-251-8528
Last EDR Contact: 06/04/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
LOS ANGELES COUNTY:

AOCONCERN: Key Areas of Concerns in Los Angeles County
San Gabriel Valley areas where VOC contamination is at or above the MCL as designated by region 9 EPA office. Date of Government Version: 3/30/2009 Exide Site area is a cleanup plan of lead-impacted soil surrounding the former Exide Facility as designated by the DTSC. Date of Government Version: 7/17/2017 Date of Government Version: 03/30/2009
Date Data Arrived at EDR: 03/31/2009
Date Made Active in Reports: 10/23/2009
Number of Days to Update: 206
Source: N/A
Telephone: N/A
Last EDR Contact: 06/08/2021
Next Scheduled EDR Contact: 09/27/2021
Data Release Frequency: No Update Planned
HMS LOS ANGELES: HMS: Street Number List
Industrial Waste and Underground Storage Tank Sites.

Date of Government Version: 01/11/2021
Date Data Arrived at EDR: 01/12/2021
Date Made Active in Reports: 03/25/2021
Number of Days to Update: 72
Source: Department of Public Works
Telephone: 626-458-3517
Last EDR Contact: 04/05/2021
Next Scheduled EDR Contact: 07/19/2021
Data Release Frequency: Semi-Annually
LF LOS ANGELES: List of Solid Waste Facilities
Solid Waste Facilities in Los Angeles County.

Date of Government Version: 01/11/2021
Date Data Arrived at EDR: 01/12/2021
Date Made Active in Reports: 03/26/2021
Number of Days to Update: 73
Source: La County Department of Public Works
Telephone: 818-458-5185
Last EDR Contact: 04/13/2021
Next Scheduled EDR Contact: 07/26/2021
Data Release Frequency: Varies
LF LOS ANGELES CITY: City of Los Angeles Landfills
Landfills owned and maintained by the City of Los Angeles.

Date of Government Version: 01/01/2021
Date Data Arrived at EDR: 02/18/2021
Date Made Active in Reports: 05/10/2021
Number of Days to Update: 81
Source: Engineering & Construction Division
Telephone: 213-473-7869
Last EDR Contact: 04/07/2021
Next Scheduled EDR Contact: 07/26/2021
Data Release Frequency: Varies
LOS ANGELES AST: Active & Inactive AST Inventory
A listing of active & inactive above ground petroleum storage tank site locations, located in the City of Los Angeles.

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
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Packet Pg. 1087 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) LOS ANGELES CO LF METHANE: Methane Producing Landfills
This data was created on April 30, 2012 to represent known disposal sites in Los Angeles County that may produce and emanate methane gas. The shapefile contains disposal sites within Los Angeles County that once accepted degradable refuse material. Information used to create this data was extracted from a landfill survey performed by County Engineers (Major Waste System Map, 1973) as well as historical records from CalRecycle, Regional Water Quality Control Board, and Los Angeles County Department of Public Health Date of Government Version: 02/04/2021
Date Data Arrived at EDR: 04/16/2021
Date Made Active in Reports: 04/21/2021
Number of Days to Update: 5
Source: Los Angeles County Department of Public Works
Telephone: 626-458-6973
Last EDR Contact: 04/16/2021
Next Scheduled EDR Contact: 07/26/2021
Data Release Frequency: No Update Planned
LOS ANGELES HM: Active & Inactive Hazardous Materials Inventory A listing of active & inactive hazardous materials facility locations, located in the City of Los Angeles.

Date of Government Version: 06/01/2019
Date Data Arrived at EDR: 06/25/2019
Date Made Active in Reports: 08/22/2019
Number of Days to Update: 58
Source: Los Angeles Fire Department
Telephone: 213-978-3800
Last EDR Contact: 03/26/2021
Next Scheduled EDR Contact: 07/05/2021
Data Release Frequency: Varies
LOS ANGELES UST: Active & Inactive UST Inventory
A listing of active & inactive underground storage tank site locations and underground storage tank historical sites, located in the City of Los Angeles.

Date of Government Version: 06/01/2019
Date Data Arrived at EDR: 06/25/2019
Date Made Active in Reports: 08/22/2019
Number of Days to Update: 58
Source: Los Angeles Fire Department
Telephone: 213-978-3800
Last EDR Contact: 03/26/2021
Next Scheduled EDR Contact: 07/05/2021
Data Release Frequency: Varies
SITE MIT LOS ANGELES: Site Mitigation List
Industrial sites that have had some sort of spill or complaint.

Date of Government Version: 10/19/2020
Date Data Arrived at EDR: 01/12/2021
Date Made Active in Reports: 03/26/2021
Number of Days to Update: 73
Source: Community Health Services
Telephone: 323-890-7806
Last EDR Contact: 04/16/2021
Next Scheduled EDR Contact: 07/26/2021
Data Release Frequency: Annually
UST EL SEGUNDO: City of El Segundo Underground Storage Tank Underground storage tank sites located in El Segundo city.

Date of Government Version: 01/21/2017
Date Data Arrived at EDR: 04/19/2017
Date Made Active in Reports: 05/10/2017
Number of Days to Update: 21
Source: City of El Segundo Fire Department
Telephone: 310-524-2236
Last EDR Contact: 04/07/2021
Next Scheduled EDR Contact: 07/26/2021
Data Release Frequency: No Update Planned
UST LONG BEACH: City of Long Beach Underground Storage Tank Underground storage tank sites located in the city of Long Beach.

Date of Government Version: 04/22/2019
Date Data Arrived at EDR: 04/23/2019
Date Made Active in Reports: 06/27/2019
Number of Days to Update: 65
Source: City of Long Beach Fire Department
Telephone: 562-570-2563
Last EDR Contact: 04/14/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
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Packet Pg. 1088 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) UST TORRANCE: City of Torrance Underground Storage Tank Underground storage tank sites located in the city of Torrance.

Date of Government Version: 09/11/2020
Date Data Arrived at EDR: 10/07/2020
Date Made Active in Reports: 12/23/2020
Number of Days to Update: 77
Source: City of Torrance Fire Department
Telephone: 310-618-2973
Last EDR Contact: 04/23/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Semi-Annually
MADERA COUNTY:

CUPA MADERA: CUPA Facility List
A listing of sites included in the county’s Certified Unified Program Agency database. California’s Secretary for Environmental Protection established the unified hazardous materials and hazardous waste regulatory program as required by chapter 6.11 of the California Health and Safety Code. The Unified Program consolidates the administration, permits, inspections, and enforcement activities.

Date of Government Version: 08/10/2020
Date Data Arrived at EDR: 08/12/2020
Date Made Active in Reports: 10/23/2020
Number of Days to Update: 72
Source: Madera County Environmental Health
Telephone: 559-675-7823
Last EDR Contact: 05/12/2021
Next Scheduled EDR Contact: 08/30/2021
Data Release Frequency: Varies
MARIN COUNTY:

UST MARIN: Underground Storage Tank Sites
Currently permitted USTs in Marin County.

Date of Government Version: 09/26/2018
Date Data Arrived at EDR: 10/04/2018
Date Made Active in Reports: 11/02/2018
Number of Days to Update: 29
Source: Public Works Department Waste Management
Telephone: 415-473-6647
Last EDR Contact: 03/25/2021
Next Scheduled EDR Contact: 07/12/2021
Data Release Frequency: Semi-Annually
MENDOCINO COUNTY:

UST MENDOCINO: Mendocino County UST Database
A listing of underground storage tank locations in Mendocino County.

Date of Government Version: 12/21/2020
Date Data Arrived at EDR: 12/21/2020
Date Made Active in Reports: 03/10/2021
Number of Days to Update: 79
Source: Department of Public Health
Telephone: 707-463-4466
Last EDR Contact: 05/18/2021
Next Scheduled EDR Contact: 09/06/2021
Data Release Frequency: Annually
MERCED COUNTY:

CUPA MERCED: CUPA Facility List
CUPA facility list.

Date of Government Version: 02/04/2021
Date Data Arrived at EDR: 02/09/2021
Date Made Active in Reports: 02/18/2021
Number of Days to Update: 9
Source: Merced County Environmental Health
Telephone: 209-381-1094
Last EDR Contact: 05/12/2021
Next Scheduled EDR Contact: 08/30/2021
Data Release Frequency: Varies
MONO COUNTY:

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Packet Pg. 1089 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) CUPA MONO: CUPA Facility List
CUPA Facility List
Date of Government Version: 02/22/2021
Date Data Arrived at EDR: 03/02/2021
Date Made Active in Reports: 05/19/2021
Number of Days to Update: 78
Source: Mono County Health Department
Telephone: 760-932-5580
Last EDR Contact: 06/02/2021
Next Scheduled EDR Contact: 09/06/3021
Data Release Frequency: Varies
MONTEREY COUNTY:

CUPA MONTEREY: CUPA Facility Listing
CUPA Program listing from the Environmental Health Division.

Date of Government Version: 01/08/2021
Date Data Arrived at EDR: 01/12/2021
Date Made Active in Reports: 03/25/2021
Number of Days to Update: 72
Source: Monterey County Health Department
Telephone: 831-796-1297
Last EDR Contact: 03/25/2021
Next Scheduled EDR Contact: 07/12/2021
Data Release Frequency: Varies
NAPA COUNTY:

LUST NAPA: Sites With Reported Contamination
A listing of leaking underground storage tank sites located in Napa county.

Date of Government Version: 01/09/2017
Date Data Arrived at EDR: 01/11/2017
Date Made Active in Reports: 03/02/2017
Number of Days to Update: 50
Source: Napa County Department of Environmental Management Telephone: 707-253-4269
Last EDR Contact: 05/18/2021
Next Scheduled EDR Contact: 09/06/2021
Data Release Frequency: No Update Planned
UST NAPA: Closed and Operating Underground Storage Tank Sites Underground storage tank sites located in Napa county.

Date of Government Version: 09/05/2019
Date Data Arrived at EDR: 09/09/2019
Date Made Active in Reports: 10/31/2019
Number of Days to Update: 52
Source: Napa County Department of Environmental Management Telephone: 707-253-4269
Last EDR Contact: 05/18/2021
Next Scheduled EDR Contact: 09/06/2021
Data Release Frequency: No Update Planned
NEVADA COUNTY:

CUPA NEVADA: CUPA Facility List
CUPA facility list.

Date of Government Version: 02/03/2021
Date Data Arrived at EDR: 02/04/2021
Date Made Active in Reports: 04/23/2021
Number of Days to Update: 78
Source: Community Development Agency
Telephone: 530-265-1467
Last EDR Contact: 04/21/2021
Next Scheduled EDR Contact: 08/09/2021
Data Release Frequency: Varies
ORANGE COUNTY:

IND_SITE ORANGE: List of Industrial Site Cleanups
Petroleum and non-petroleum spills.

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Packet Pg. 1090 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Date of Government Version: 02/01/2021
Date Data Arrived at EDR: 02/04/2021
Date Made Active in Reports: 04/23/2021
Number of Days to Update: 78
Source: Health Care Agency
Telephone: 714-834-3446
Last EDR Contact: 04/29/2021
Next Scheduled EDR Contact: 08/16/2021
Data Release Frequency: Annually
LUST ORANGE: List of Underground Storage Tank Cleanups
Orange County Underground Storage Tank Cleanups (LUST).

Date of Government Version: 03/01/2021
Date Data Arrived at EDR: 05/03/2021
Date Made Active in Reports: 05/12/2021
Number of Days to Update: 9
Source: Health Care Agency
Telephone: 714-834-3446
Last EDR Contact: 04/29/2021
Next Scheduled EDR Contact: 08/16/2021
Data Release Frequency: Quarterly
UST ORANGE: List of Underground Storage Tank Facilities Orange County Underground Storage Tank Facilities (UST).

Date of Government Version: 02/01/2021
Date Data Arrived at EDR: 02/02/2021
Date Made Active in Reports: 04/20/2021
Number of Days to Update: 77
Source: Health Care Agency
Telephone: 714-834-3446
Last EDR Contact: 04/30/2021
Next Scheduled EDR Contact: 08/16/2021
Data Release Frequency: Quarterly
PLACER COUNTY:

MS PLACER: Master List of Facilities
List includes aboveground tanks, underground tanks and cleanup sites.

Date of Government Version: 05/25/2021
Date Data Arrived at EDR: 05/26/2021
Date Made Active in Reports: 06/01/2021
Number of Days to Update: 6
Source: Placer County Health and Human Services
Telephone: 530-745-2363
Last EDR Contact: 05/25/2021
Next Scheduled EDR Contact: 09/13/2021
Data Release Frequency: Semi-Annually
PLUMAS COUNTY:

CUPA PLUMAS: CUPA Facility List
Plumas County CUPA Program facilities.

Date of Government Version: 03/31/2019
Date Data Arrived at EDR: 04/23/2019
Date Made Active in Reports: 06/26/2019
Number of Days to Update: 64
Source: Plumas County Environmental Health
Telephone: 530-283-6355
Last EDR Contact: 04/14/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
RIVERSIDE COUNTY:

LUST RIVERSIDE: Listing of Underground Tank Cleanup Sites Riverside County Underground Storage Tank Cleanup Sites (LUST).

Date of Government Version: 01/13/2021
Date Data Arrived at EDR: 01/14/2021
Date Made Active in Reports: 03/10/2021
Number of Days to Update: 55
Source: Department of Environmental Health
Telephone: 951-358-5055
Last EDR Contact: 06/08/2021
Next Scheduled EDR Contact: 09/27/2021
Data Release Frequency: Quarterly
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Packet Pg. 1091 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) UST RIVERSIDE: Underground Storage Tank Tank List
Underground storage tank sites located in Riverside county.

Date of Government Version: 01/13/2021
Date Data Arrived at EDR: 01/14/2021
Date Made Active in Reports: 03/10/2021
Number of Days to Update: 55
Source: Department of Environmental Health
Telephone: 951-358-5055
Last EDR Contact: 06/07/2021
Next Scheduled EDR Contact: 09/26/2021
Data Release Frequency: Quarterly
SACRAMENTO COUNTY:

CS SACRAMENTO: Toxic Site Clean-Up List
List of sites where unauthorized releases of potentially hazardous materials have occurred.

Date of Government Version: 02/18/2020
Date Data Arrived at EDR: 03/31/2020
Date Made Active in Reports: 06/15/2020
Number of Days to Update: 76
Source: Sacramento County Environmental Management
Telephone: 916-875-8406
Last EDR Contact: 03/31/2021
Next Scheduled EDR Contact: 07/12/2021
Data Release Frequency: Quarterly
ML SACRAMENTO: Master Hazardous Materials Facility List Any business that has hazardous materials on site - hazardous material storage sites, underground storage tanks, waste generators.

Date of Government Version: 02/24/2020
Date Data Arrived at EDR: 03/31/2020
Date Made Active in Reports: 06/17/2020
Number of Days to Update: 78
Source: Sacramento County Environmental Management
Telephone: 916-875-8406
Last EDR Contact: 04/01/2021
Next Scheduled EDR Contact: 07/12/2021
Data Release Frequency: Quarterly
SAN BENITO COUNTY:

CUPA SAN BENITO: CUPA Facility List
Cupa facility list
Date of Government Version: 04/28/2021
Date Data Arrived at EDR: 04/29/2021
Date Made Active in Reports: 05/03/2021
Number of Days to Update: 4
Source: San Benito County Environmental Health
Telephone: N/A
Last EDR Contact: 04/27/2021
Next Scheduled EDR Contact: 08/16/2021
Data Release Frequency: Varies
SAN BERNARDINO COUNTY:

PERMITS SAN BERNARDINO: Hazardous Material Permits
This listing includes underground storage tanks, medical waste handlers/generators, hazardous materials handlers, hazardous waste generators, and waste oil generators/handlers.

Date of Government Version: 05/19/2021
Date Data Arrived at EDR: 05/19/2021
Date Made Active in Reports: 06/07/2021
Number of Days to Update: 19
Source: San Bernardino County Fire Department Hazardous Materials Division Telephone: 909-387-3041
Last EDR Contact: 05/03/2021
Next Scheduled EDR Contact: 08/16/2021
Data Release Frequency: Quarterly
SAN DIEGO COUNTY:

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Packet Pg. 1092 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) HMMD SAN DIEGO: Hazardous Materials Management Division Database The database includes: HE58 - This report contains the business name, site address, business phone number, establishment ’H’ permit number, type of permit, and the business status. HE17 - In addition to providing the same information provided in the HE58 listing, HE17 provides inspection dates, violations received by the establishment, hazardous waste generated, the quantity, method of storage, treatment/disposal of waste and the hauler, and information on underground storage tanks. Unauthorized Release List - Includes a summary of environmental contamination cases in San Diego County (underground tank cases, non-tank cases, groundwater contamination, and soil contamination are included.)
Date of Government Version: 03/02/2021
Date Data Arrived at EDR: 03/03/2021
Date Made Active in Reports: 05/21/2021
Number of Days to Update: 79
Source: Hazardous Materials Management Division
Telephone: 619-338-2268
Last EDR Contact: 05/28/2021
Next Scheduled EDR Contact: 09/13/2021
Data Release Frequency: Quarterly
LF SAN DIEGO: Solid Waste Facilities
San Diego County Solid Waste Facilities.

Date of Government Version: 10/01/2020
Date Data Arrived at EDR: 11/23/2020
Date Made Active in Reports: 02/08/2021
Number of Days to Update: 77
Source: Department of Health Services
Telephone: 619-338-2209
Last EDR Contact: 05/21/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
SAN DIEGO CO LOP: Local Oversight Program Listing
A listing of all LOP release sites that are or were under the County of San Diego’s jurisdiction. Included are closed or transferred cases, open cases, and cases that did not have a case type indicated. The cases without a case type are mostly complaints; however, some of them could be LOP cases.

Date of Government Version: 07/14/2020
Date Data Arrived at EDR: 07/16/2020
Date Made Active in Reports: 09/29/2020
Number of Days to Update: 75
Source: Department of Environmental Health
Telephone: 858-505-6874
Last EDR Contact: 04/14/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
SAN DIEGO CO SAM: Environmental Case Listing
The listing contains all underground tank release cases and projects pertaining to properties contaminated with hazardous substances that are actively under review by the Site Assessment and Mitigation Program.

Date of Government Version: 03/23/2010
Date Data Arrived at EDR: 06/15/2010
Date Made Active in Reports: 07/09/2010
Number of Days to Update: 24
Source: San Diego County Department of Environmental Health Telephone: 619-338-2371
Last EDR Contact: 05/25/2021
Next Scheduled EDR Contact: 09/13/2021
Data Release Frequency: No Update Planned
SAN FRANCISCO COUNTY:

CUPA SAN FRANCISCO CO: CUPA Facility Listing
Cupa facilities
Date of Government Version: 02/11/2021
Date Data Arrived at EDR: 02/11/2021
Date Made Active in Reports: 05/05/2021
Number of Days to Update: 83
Source: San Francisco County Department of Environmental Health Telephone: 415-252-3896
Last EDR Contact: 04/27/2021
Next Scheduled EDR Contact: 08/16/2021
Data Release Frequency: Varies
LUST SAN FRANCISCO: Local Oversite Facilities
A listing of leaking underground storage tank sites located in San Francisco county.

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Packet Pg. 1093 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Date of Government Version: 09/19/2008
Date Data Arrived at EDR: 09/19/2008
Date Made Active in Reports: 09/29/2008
Number of Days to Update: 10
Source: Department Of Public Health San Francisco County Telephone: 415-252-3920
Last EDR Contact: 04/27/2021
Next Scheduled EDR Contact: 08/16/2021
Data Release Frequency: No Update Planned
UST SAN FRANCISCO: Underground Storage Tank Information Underground storage tank sites located in San Francisco county.

Date of Government Version: 02/11/2021
Date Data Arrived at EDR: 02/11/2021
Date Made Active in Reports: 05/05/2021
Number of Days to Update: 83
Source: Department of Public Health
Telephone: 415-252-3920
Last EDR Contact: 04/27/2021
Next Scheduled EDR Contact: 08/16/2021
Data Release Frequency: Quarterly
SAN JOAQUIN COUNTY:

UST SAN JOAQUIN: San Joaquin Co. UST
A listing of underground storage tank locations in San Joaquin county.

Date of Government Version: 06/22/2018
Date Data Arrived at EDR: 06/26/2018
Date Made Active in Reports: 07/11/2018
Number of Days to Update: 15
Source: Environmental Health Department
Telephone: N/A
Last EDR Contact: 06/08/2021
Next Scheduled EDR Contact: 09/27/2021
Data Release Frequency: Semi-Annually
SAN LUIS OBISPO COUNTY:

CUPA SAN LUIS OBISPO: CUPA Facility List
Cupa Facility List.

Date of Government Version: 05/07/2021
Date Data Arrived at EDR: 05/11/2021
Date Made Active in Reports: 05/14/2021
Number of Days to Update: 3
Source: San Luis Obispo County Public Health Department Telephone: 805-781-5596
Last EDR Contact: 05/06/2021
Next Scheduled EDR Contact: 08/30/2021
Data Release Frequency: Varies
SAN MATEO COUNTY:

BI SAN MATEO: Business Inventory
List includes Hazardous Materials Business Plan, hazardous waste generators, and underground storage tanks.

Date of Government Version: 02/20/2020
Date Data Arrived at EDR: 02/20/2020
Date Made Active in Reports: 04/24/2020
Number of Days to Update: 64
Source: San Mateo County Environmental Health Services Division Telephone: 650-363-1921
Last EDR Contact: 06/10/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Annually
LUST SAN MATEO: Fuel Leak List
A listing of leaking underground storage tank sites located in San Mateo county.

Date of Government Version: 03/29/2019
Date Data Arrived at EDR: 03/29/2019
Date Made Active in Reports: 05/29/2019
Number of Days to Update: 61
Source: San Mateo County Environmental Health Services Division Telephone: 650-363-1921
Last EDR Contact: 06/02/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Semi-Annually
SANTA BARBARA COUNTY:

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Packet Pg. 1094 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) CUPA SANTA BARBARA: CUPA Facility Listing
CUPA Program Listing from the Environmental Health Services division.

Date of Government Version: 09/08/2011
Date Data Arrived at EDR: 09/09/2011
Date Made Active in Reports: 10/07/2011
Number of Days to Update: 28
Source: Santa Barbara County Public Health Department
Telephone: 805-686-8167
Last EDR Contact: 05/12/2021
Next Scheduled EDR Contact: 08/30/2021
Data Release Frequency: No Update Planned
SANTA CLARA COUNTY:

CUPA SANTA CLARA: Cupa Facility List
Cupa facility list
Date of Government Version: 02/24/2021
Date Data Arrived at EDR: 02/26/2021
Date Made Active in Reports: 05/19/2021
Number of Days to Update: 82
Source: Department of Environmental Health
Telephone: 408-918-1973
Last EDR Contact: 05/12/2021
Next Scheduled EDR Contact: 08/30/2021
Data Release Frequency: Varies
HIST LUST SANTA CLARA: HIST LUST - Fuel Leak Site Activity Report A listing of open and closed leaking underground storage tanks. This listing is no longer updated by the county.

Leaking underground storage tanks are now handled by the Department of Environmental Health.

Date of Government Version: 03/29/2005
Date Data Arrived at EDR: 03/30/2005
Date Made Active in Reports: 04/21/2005
Number of Days to Update: 22
Source: Santa Clara Valley Water District
Telephone: 408-265-2600
Last EDR Contact: 03/23/2009
Next Scheduled EDR Contact: 06/22/2009
Data Release Frequency: No Update Planned
LUST SANTA CLARA: LOP Listing
A listing of leaking underground storage tanks located in Santa Clara county.

Date of Government Version: 03/03/2014
Date Data Arrived at EDR: 03/05/2014
Date Made Active in Reports: 03/18/2014
Number of Days to Update: 13
Source: Department of Environmental Health
Telephone: 408-918-3417
Last EDR Contact: 05/18/2021
Next Scheduled EDR Contact: 09/06/2021
Data Release Frequency: No Update Planned
SAN JOSE HAZMAT: Hazardous Material Facilities
Hazardous material facilities, including underground storage tank sites.

Date of Government Version: 11/03/2020
Date Data Arrived at EDR: 11/05/2020
Date Made Active in Reports: 01/26/2021
Number of Days to Update: 82
Source: City of San Jose Fire Department
Telephone: 408-535-7694
Last EDR Contact: 05/21/2021
Next Scheduled EDR Contact: 08/16/2021
Data Release Frequency: Annually
SANTA CRUZ COUNTY:

CUPA SANTA CRUZ: CUPA Facility List
CUPA facility listing.

Date of Government Version: 01/21/2017
Date Data Arrived at EDR: 02/22/2017
Date Made Active in Reports: 05/23/2017
Number of Days to Update: 90
Source: Santa Cruz County Environmental Health
Telephone: 831-464-2761
Last EDR Contact: 05/12/2021
Next Scheduled EDR Contact: 08/30/2021
Data Release Frequency: Varies
SHASTA COUNTY:

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Packet Pg. 1095 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) CUPA SHASTA: CUPA Facility List
Cupa Facility List.

Date of Government Version: 06/15/2017
Date Data Arrived at EDR: 06/19/2017
Date Made Active in Reports: 08/09/2017
Number of Days to Update: 51
Source: Shasta County Department of Resource Management Telephone: 530-225-5789
Last EDR Contact: 05/12/2021
Next Scheduled EDR Contact: 08/30/2021
Data Release Frequency: Varies
SOLANO COUNTY:

LUST SOLANO: Leaking Underground Storage Tanks
A listing of leaking underground storage tank sites located in Solano county.

Date of Government Version: 06/04/2019
Date Data Arrived at EDR: 06/06/2019
Date Made Active in Reports: 08/13/2019
Number of Days to Update: 68
Source: Solano County Department of Environmental Management Telephone: 707-784-6770
Last EDR Contact: 05/25/2021
Next Scheduled EDR Contact: 09/13/2021
Data Release Frequency: Quarterly
UST SOLANO: Underground Storage Tanks
Underground storage tank sites located in Solano county.

Date of Government Version: 03/23/2021
Date Data Arrived at EDR: 03/25/2021
Date Made Active in Reports: 06/10/2021
Number of Days to Update: 77
Source: Solano County Department of Environmental Management Telephone: 707-784-6770
Last EDR Contact: 06/08/2021
Next Scheduled EDR Contact: 09/12/2021
Data Release Frequency: Quarterly
SONOMA COUNTY:

CUPA SONOMA: Cupa Facility List
Cupa Facility list
Date of Government Version: 12/15/2020
Date Data Arrived at EDR: 12/16/2020
Date Made Active in Reports: 12/23/2020
Number of Days to Update: 7
Source: County of Sonoma Fire & Emergency Services Department Telephone: 707-565-1174
Last EDR Contact: 06/15/2021
Next Scheduled EDR Contact: 10/04/2021
Data Release Frequency: Varies
LUST SONOMA: Leaking Underground Storage Tank Sites
A listing of leaking underground storage tank sites located in Sonoma county.

Date of Government Version: 01/05/2021
Date Data Arrived at EDR: 01/06/2021
Date Made Active in Reports: 03/18/2021
Number of Days to Update: 71
Source: Department of Health Services
Telephone: 707-565-6565
Last EDR Contact: 06/15/2021
Next Scheduled EDR Contact: 10/04/2021
Data Release Frequency: Quarterly
STANISLAUS COUNTY:

CUPA STANISLAUS: CUPA Facility List
Cupa facility list
Date of Government Version: 02/09/2021
Date Data Arrived at EDR: 02/11/2021
Date Made Active in Reports: 05/05/2021
Number of Days to Update: 83
Source: Stanislaus County Department of Ennvironmental Protection Telephone: 209-525-6751
Last EDR Contact: 04/21/2021
Next Scheduled EDR Contact: 07/26/2021
Data Release Frequency: Varies
SUTTER COUNTY:

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Packet Pg. 1096 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) UST SUTTER: Underground Storage Tanks
Underground storage tank sites located in Sutter county.

Date of Government Version: 03/01/2021
Date Data Arrived at EDR: 03/02/2021
Date Made Active in Reports: 05/19/2021
Number of Days to Update: 78
Source: Sutter County Environmental Health Services
Telephone: 530-822-7500
Last EDR Contact: 05/25/2021
Next Scheduled EDR Contact: 09/13/2021
Data Release Frequency: Semi-Annually
TEHAMA COUNTY:

CUPA TEHAMA: CUPA Facility List
Cupa facilities
Date of Government Version: 01/13/2021
Date Data Arrived at EDR: 01/14/2021
Date Made Active in Reports: 04/06/2021
Number of Days to Update: 82
Source: Tehama County Department of Environmental Health Telephone: 530-527-8020
Last EDR Contact: 04/27/2021
Next Scheduled EDR Contact: 08/16/2021
Data Release Frequency: Varies
TRINITY COUNTY:

CUPA TRINITY: CUPA Facility List
Cupa facility list
Date of Government Version: 01/19/2021
Date Data Arrived at EDR: 01/20/2021
Date Made Active in Reports: 04/08/2021
Number of Days to Update: 78
Source: Department of Toxic Substances Control
Telephone: 760-352-0381
Last EDR Contact: 04/14/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
TULARE COUNTY:

CUPA TULARE: CUPA Facility List
Cupa program facilities
Date of Government Version: 02/02/2021
Date Data Arrived at EDR: 02/04/2021
Date Made Active in Reports: 04/23/2021
Number of Days to Update: 78
Source: Tulare County Environmental Health Services Division Telephone: 559-624-7400
Last EDR Contact: 04/27/2021
Next Scheduled EDR Contact: 08/16/2021
Data Release Frequency: Varies
TUOLUMNE COUNTY:

CUPA TUOLUMNE: CUPA Facility List
Cupa facility list
Date of Government Version: 04/23/2018
Date Data Arrived at EDR: 04/25/2018
Date Made Active in Reports: 06/25/2018
Number of Days to Update: 61
Source: Divison of Environmental Health
Telephone: 209-533-5633
Last EDR Contact: 04/14/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Varies
VENTURA COUNTY:

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Packet Pg. 1097 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) BWT VENTURA: Business Plan, Hazardous Waste Producers, and Operating Underground Tanks The BWT list indicates by site address whether the Environmental Health Division has Business Plan (B), Waste Producer (W), and/or Underground Tank (T) information.

Date of Government Version: 12/28/2020
Date Data Arrived at EDR: 01/29/2021
Date Made Active in Reports: 04/22/2021
Number of Days to Update: 83
Source: Ventura County Environmental Health Division
Telephone: 805-654-2813
Last EDR Contact: 04/19/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Quarterly
LF VENTURA: Inventory of Illegal Abandoned and Inactive Sites Ventura County Inventory of Closed, Illegal Abandoned, and Inactive Sites.

Date of Government Version: 12/01/2011
Date Data Arrived at EDR: 12/01/2011
Date Made Active in Reports: 01/19/2012
Number of Days to Update: 49
Source: Environmental Health Division
Telephone: 805-654-2813
Last EDR Contact: 03/25/2021
Next Scheduled EDR Contact: 07/12/2021
Data Release Frequency: No Update Planned
LUST VENTURA: Listing of Underground Tank Cleanup Sites Ventura County Underground Storage Tank Cleanup Sites (LUST).

Date of Government Version: 05/29/2008
Date Data Arrived at EDR: 06/24/2008
Date Made Active in Reports: 07/31/2008
Number of Days to Update: 37
Source: Environmental Health Division
Telephone: 805-654-2813
Last EDR Contact: 05/05/2021
Next Scheduled EDR Contact: 08/23/2021
Data Release Frequency: No Update Planned
MED WASTE VENTURA: Medical Waste Program List
To protect public health and safety and the environment from potential exposure to disease causing agents, the Environmental Health Division Medical Waste Program regulates the generation, handling, storage, treatment and disposal of medical waste throughout the County.

Date of Government Version: 03/29/2021
Date Data Arrived at EDR: 04/21/2021
Date Made Active in Reports: 04/23/2021
Number of Days to Update: 2
Source: Ventura County Resource Management Agency
Telephone: 805-654-2813
Last EDR Contact: 04/19/2021
Next Scheduled EDR Contact: 08/02/2021
Data Release Frequency: Quarterly
UST VENTURA: Underground Tank Closed Sites List
Ventura County Operating Underground Storage Tank Sites (UST)/Underground Tank Closed Sites List.

Date of Government Version: 03/01/2021
Date Data Arrived at EDR: 03/09/2021
Date Made Active in Reports: 03/31/2021
Number of Days to Update: 22
Source: Environmental Health Division
Telephone: 805-654-2813
Last EDR Contact: 06/04/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Quarterly
YOLO COUNTY:

UST YOLO: Underground Storage Tank Comprehensive Facility Report Underground storage tank sites located in Yolo county.

Date of Government Version: 12/21/2020
Date Data Arrived at EDR: 12/23/2020
Date Made Active in Reports: 01/04/2021
Number of Days to Update: 12
Source: Yolo County Department of Health
Telephone: 530-666-8646
Last EDR Contact: 03/26/2021
Next Scheduled EDR Contact: 07/12/2021
Data Release Frequency: Annually
YUBA COUNTY:

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Packet Pg. 1098 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) CUPA YUBA: CUPA Facility List
CUPA facility listing for Yuba County.

Date of Government Version: 04/21/2021
Date Data Arrived at EDR: 04/22/2021
Date Made Active in Reports: 05/12/2021
Number of Days to Update: 20
Source: Yuba County Environmental Health Department
Telephone: 530-749-7523
Last EDR Contact: 04/24/2021
Next Scheduled EDR Contact: 08/09/2021
Data Release Frequency: Varies

OTHER DATABASE(S)
Depending on the geographic area covered by this report, the data provided in these specialty databases may or may not be complete. For example, the existence of wetlands information data in a specific report does not mean that all wetlands in the area covered by the report are included. Moreover, the absence of any reported wetlands information does not necessarily mean that wetlands do not exist in the area covered by the report.

CT MANIFEST: Hazardous Waste Manifest Data
Facility and manifest data. Manifest is a document that lists and tracks hazardous waste from the generator through transporters to a tsd facility.

Date of Government Version: 10/05/2020
Date Data Arrived at EDR: 02/17/2021
Date Made Active in Reports: 05/10/2021
Number of Days to Update: 82
Source: Department of Energy & Environmental Protection Telephone: 860-424-3375
Last EDR Contact: 05/11/2021
Next Scheduled EDR Contact: 08/23/2021
Data Release Frequency: No Update Planned
NJ MANIFEST: Manifest Information
Hazardous waste manifest information.

Date of Government Version: 12/31/2018
Date Data Arrived at EDR: 04/10/2019
Date Made Active in Reports: 05/16/2019
Number of Days to Update: 36
Source: Department of Environmental Protection
Telephone: N/A
Last EDR Contact: 04/09/2021
Next Scheduled EDR Contact: 07/19/2021
Data Release Frequency: Annually
NY MANIFEST: Facility and Manifest Data
Manifest is a document that lists and tracks hazardous waste from the generator through transporters to a TSD facility.

Date of Government Version: 01/01/2019
Date Data Arrived at EDR: 04/29/2020
Date Made Active in Reports: 07/10/2020
Number of Days to Update: 72
Source: Department of Environmental Conservation
Telephone: 518-402-8651
Last EDR Contact: 04/30/2021
Next Scheduled EDR Contact: 08/09/2021
Data Release Frequency: Quarterly
PA MANIFEST: Manifest Information
Hazardous waste manifest information.

Date of Government Version: 06/30/2018
Date Data Arrived at EDR: 07/19/2019
Date Made Active in Reports: 09/10/2019
Number of Days to Update: 53
Source: Department of Environmental Protection
Telephone: 717-783-8990
Last EDR Contact: 04/09/2021
Next Scheduled EDR Contact: 07/26/2021
Data Release Frequency: Annually
RI MANIFEST: Manifest information
Hazardous waste manifest information
Date of Government Version: 12/31/2019
Date Data Arrived at EDR: 02/11/2021
Date Made Active in Reports: 02/24/2021
Number of Days to Update: 13
Source: Department of Environmental Management
Telephone: 401-222-2797
Last EDR Contact: 05/13/2021
Next Scheduled EDR Contact: 08/30/2021
Data Release Frequency: Annually
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Packet Pg. 1099 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) WI MANIFEST: Manifest Information
Hazardous waste manifest information.

Date of Government Version: 05/31/2018
Date Data Arrived at EDR: 06/19/2019
Date Made Active in Reports: 09/03/2019
Number of Days to Update: 76
Source: Department of Natural Resources
Telephone: N/A
Last EDR Contact: 06/03/2021
Next Scheduled EDR Contact: 09/20/2021
Data Release Frequency: Annually
Oil/Gas Pipelines
Source: Endeavor Business Media
Petroleum Bundle (Crude Oil, Refined Products, Petrochemicals, Gas Liquids (LPG/NGL), and Specialty Gases (Miscellaneous)) N = Natural Gas Bundle (Natural Gas, Gas Liquids (LPG/NGL), and Specialty Gases (Miscellaneous)). This map includes information copyrighted by Endeavor Business Media. This information is provided on a best effort basis and Endeavor Business Media does not guarantee its accuracy nor warrant its fitness for any particular purpose. Such information has been reprinted with the permission of Endeavor Business Media.

Electric Power Transmission Line Data
Source: Endeavor Business Media
This map includes information copyrighted by Endeavor Business Media. This information is provided on a best effort basis and Endeavor Business Media does not guarantee its accuracy nor warrant its fitness for any particular purpose. Such information has been reprinted with the permission of Endeavor Business Media.

Sensitive Receptors: There are individuals deemed sensitive receptors due to their fragile immune systems and special sensitivity to environmental discharges. These sensitive receptors typically include the elderly, the sick, and children. While the location of all sensitive receptors cannot be determined, EDR indicates those buildings and facilities - schools, daycares, hospitals, medical centers, and nursing homes - where individuals who are sensitive receptors are likely to be located.

AHA Hospitals:

Source: American Hospital Association, Inc.

Telephone: 312-280-5991
The database includes a listing of hospitals based on the American Hospital Association’s annual survey of hospitals.

Medical Centers: Provider of Services Listing
Source: Centers for Medicare & Medicaid Services
Telephone: 410-786-3000
A listing of hospitals with Medicare provider number, produced by Centers of Medicare & Medicaid Services, a federal agency within the U.S. Department of Health and Human Services.

Nursing Homes
Source: National Institutes of Health
Telephone: 301-594-6248
Information on Medicare and Medicaid certified nursing homes in the United States.

Public Schools
Source: National Center for Education Statistics
Telephone: 202-502-7300
The National Center for Education Statistics’ primary database on elementary and secondary public education in the United States. It is a comprehensive, annual, national statistical database of all public elementary and secondary schools and school districts, which contains data that are comparable across all states.

Private Schools
Source: National Center for Education Statistics
Telephone: 202-502-7300
The National Center for Education Statistics’ primary database on private school locations in the United States.

Daycare Centers: Licensed Facilities
Source: Department of Social Services
Telephone: 916-657-4041
Flood Zone Data: This data was obtained from the Federal Emergency Management Agency (FEMA). It depicts 100-year and 500-year flood zones as defined by FEMA. It includes the National Flood Hazard Layer (NFHL) which incorporates Flood Insurance Rate Map (FIRM) data and Q3 data from FEMA in areas not covered by NFHL.

Source: FEMA
Telephone: 877-336-2627
Date of Government Version: 2003, 2015
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Packet Pg. 1100 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) NWI: National Wetlands Inventory. This data, available in select counties across the country, was obtained by EDR in 2002, 2005 and 2010 from the U.S. Fish and Wildlife Service.

State Wetlands Data: Wetland Inventory
Source: Department of Fish and Wildlife
Telephone: 916-445-0411
Current USGS 7.5 Minute Topographic Map
Source: U.S. Geological Survey

STREET AND ADDRESS INFORMATION
© 2015 TomTom North America, Inc. All rights reserved. This material is proprietary and the subject of copyright protection and other intellectual property rights owned by or licensed to Tele Atlas North America, Inc. The use of this material is subject to the terms of a license agreement. You will be held liable for any unauthorized copying or disclosure of this material.

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Packet Pg. 1101 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TC6541790.2s Page A-1
geologic strata.
of the soil, and nearby wells. Groundwater flow velocity is generally impacted by the nature of the Groundwater flow direction may be impacted by surface topography, hydrology, hydrogeology, characteristics

2. Groundwater flow velocity.

1. Groundwater flow direction, and
Assessment of the impact of contaminant migration generally has two principle investigative components:
forming an opinion about the impact of potential contaminant migration.

EDR’s GeoCheck Physical Setting Source Addendum is provided to assist the environmental professional in Version Date: 2012
Target Property Map: 5641312 RIVERSIDE EAST, CA

USGS TOPOGRAPHIC MAP
Elevation: 1680 ft. above sea level
UTM Y (Meters): 3757494.5
UTM X (Meters): 472780.5
Universal Tranverse Mercator: Zone 11
Longitude (West): 117.294602 - 117˚ 17’ 40.57’’
Latitude (North): 33.959359 - 33˚ 57’ 33.69’’

TARGET PROPERTY COORDINATES
MORENO VALLEY, CA 92557

NOT REPORTED

GATEWAY HEIGHTS RESIDENTIAL PROJECT

TARGET PROPERTY ADDRESS
GEOCHECK - PHYSICAL SETTING SOURCE ADDENDUM ®
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Packet Pg. 1102 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TC6541790.2s Page A-2
should be field verified.
on a relative (not an absolute) basis. Relative elevation information between sites of close proximity Source: Topography has been determined from the USGS 7.5’ Digital Elevation Model and should be evaluated SURROUNDING TOPOGRAPHY: ELEVATION PROFILES Elevation (ft) Elevation (ft) TP
TP
0 1/2 1 Miles ✩Target Property Elevation: 1680 ft.

North South
West East 1577 1552 1543 1543 1529 1546 1621 1603 1598 1680 1875 2148 2493 2613 2591 2478 2400 2424 2421 1358 1380 1377 1435 1429 1470 1514 1564 1640 1680 1766 1891 2245 2320 2301 2406 2813 29352767 General Topographic Gradient: General SSW

TARGET PROPERTY TOPOGRAPHY
should contamination exist on the target property, what downgradient sites might be impacted. assist the environmental professional in forming an opinion about the impact of nearby contaminated properties or, Surface topography may be indicative of the direction of surficial groundwater flow. This information can be used to

TOPOGRAPHIC INFORMATION
collected on nearby properties, and regional groundwater flow information (from deep aquifers). sources of information, such as surface topographic information, hydrologic information, hydrogeologic data using site-specific well data. If such data is not reasonably ascertainable, it may be necessary to rely on other Groundwater flow direction for a particular site is best determined by a qualified environmental professional

GROUNDWATER FLOW DIRECTION INFORMATION
GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY ®
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Packet Pg. 1103 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TC6541790.2s Page A-3
For additional site information, refer to Physical Setting Source Map Findings. 1G 1/2 - 1 Mile SSW Not Reported
A12 1/2 - 1 Mile SSW Not Reported

LOCATION GENERAL DIRECTION

MAP ID FROM TP GROUNDWATER FLOW
hydrogeologically, and the depth to water table.
authorities at select sites and has extracted the date of the report, groundwater flow direction as determined flow at specific points. EDR has reviewed reports submitted by environmental professionals to regulatory EDR has developed the AQUIFLOW Information System to provide data on the general direction of groundwater AQUIFLOW®
Search Radius: 1.000 Mile.

Status: Not found
Search Radius: 1.25 miles
Site-Specific Hydrogeological Data*:
* ©1996 Site−specific hydrogeological data gathered by CERCLIS Alerts, Inc., Bainbridge Island, WA. All rights reserved. All of the information and opinions presented are those of the cited EPA report(s), which were completed under a Comprehensive Environmental Response Compensation and Liability Information System (CERCLIS) investigation. contamination exist on the target property, what downgradient sites might be impacted. environmental professional in forming an opinion about the impact of nearby contaminated properties or, should of groundwater flow direction in the immediate area. Such hydrogeologic information can be used to assist the Hydrogeologic information obtained by installation of wells on a specific site can often be an indicator

HYDROGEOLOGIC INFORMATION
NOT AVAILABLE YES - refer to the Overview Map and Detail Map

NATIONAL WETLAND INVENTORY
NWI Electronic
NWI Quad at Target Property Data Coverage
0602600020A FEMA Q3 Flood data
0602450735A FEMA Q3 Flood data
06065C0731G FEMA FIRM Flood data
Additional Panels in search area: FEMA Source Type
0650740005A FEMA Q3 Flood data
Flood Plain Panel at Target Property FEMA Source Type

FEMA FLOOD ZONE
and bodies of water).

Refer to the Physical Setting Source Map following this summary for hydrologic information (major waterways contamination exist on the target property, what downgradient sites might be impacted. the environmental professional in forming an opinion about the impact of nearby contaminated properties or, should Surface water can act as a hydrologic barrier to groundwater flow. Such hydrologic information can be used to assist

HYDROLOGIC INFORMATION
GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY ®
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Packet Pg. 1104 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TC6541790.2s Page A-4
Map, USGS Digital Data Series DDS - 11 (1994).
of the Conterminous U.S. at 1:2,500,000 Scale - a digital representation of the 1974 P.B. King and H.M. Beikman Geologic Age and Rock Stratigraphic Unit Source: P.G. Schruben, R.E. Arndt and W.J. Bawiec, Geology

ROCK STRATIGRAPHIC UNIT GEOLOGIC AGE IDENTIFICATION
Era: Mesozoic Category: Plutonic and Intrusive Rocks
System: Cretaceous
Series: Cretaceous granitic rocks
Code: Kg (decoded above as Era, System & Series)
at which contaminant migration may be occurring.

Geologic information can be used by the environmental professional in forming an opinion about the relative speed

GEOLOGIC INFORMATION IN GENERAL AREA OF TARGET PROPERTY move more quickly through sandy-gravelly types of soils than silty-clayey types of soils. characteristics data collected on nearby properties and regional soil information. In general, contaminant plumes to rely on other sources of information, including geologic age identification, rock stratigraphic unit and soil using site specific geologic and soil strata data. If such data are not reasonably ascertainable, it may be necessary Groundwater flow velocity information for a particular site is best determined by a qualified environmental professional

GROUNDWATER FLOW VELOCITY INFORMATION
GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY ®
F.1.c
Packet Pg. 1105 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) EDR Inc.
2 1
3 6
4 5
0 1/16 1/8 1/4 Miles
F.1.c
Packet Pg. 1106 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TC6541790.2s Page A-6
Soil Drainage Class:
movement of water, or soils with moderately fine or fine textures.

Hydrologic Group: Class C - Slow infiltration rates. Soils with layers impeding downward Soil Surface Texture: unweathered bedrock
Soil Component Name: ROCKLAND
Soil Map ID: 2
Max: Min:

Min: 0
Not reported Max: 0.42
and Sand.

Clayey Gravel
200), Silty, or
passing No.
pct. or less
materials (35
Granular
bedrock
2 14 inches 22 inches weathered
Max: Min:

Min: 0
Not reported Max: 0.42
and Sand.

Clayey Gravel
200), Silty, or
passing No.
pct. or less
materials (35
1 0 inches 14 inches sandy loam Granular
Soil Layer Information
Boundary Classification Saturated
hydraulic
conductivity
micro m/sec Layer Upper Lower Soil Texture Class AASHTO Group Unified Soil Soil Reaction (pH) Depth to Watertable Min: > 0 inches
Depth to Bedrock Min: > 0 inches
Corrosion Potential - Uncoated Steel: Low
Hydric Status: Not hydric
Soil Drainage Class: Somewhat excessively drained
movement of water, or soils with moderately fine or fine textures.

Hydrologic Group: Class C - Slow infiltration rates. Soils with layers impeding downward Soil Surface Texture: sandy loam
Soil Component Name: Cieneba
Soil Map ID: 1
in a landscape. The following information is based on Soil Conservation Service SSURGO data. for privately owned lands in the United States. A soil map in a soil survey is a representation of soil patterns Survey (NCSS) and is responsible for collecting, storing, maintaining and distributing soil survey information The U.S. Department of Agriculture’s (USDA) Soil Conservation Service (SCS) leads the National Cooperative Soil

DOMINANT SOIL COMPOSITION IN GENERAL AREA OF TARGET PROPERTY GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY ®
F.1.c
Packet Pg. 1107 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TC6541790.2s Page A-7
Max: Min:

Min: 0
Not reported Max: 0.42
and Sand.

Hydrologic Group: Class C - Slow infiltration rates. Soils with layers impeding downward Soil Surface Texture: sandy loam
Soil Component Name: CIENEBA
Soil Map ID: 3
Max: Min:

Min:

Not reported Not reported Max:
bedrock
1 0 inches 59 inches unweathered
Soil Layer Information
Boundary Classification Saturated
hydraulic
conductivity
micro m/sec Layer Upper Lower Soil Texture Class AASHTO Group Unified Soil Soil Reaction (pH) Depth to Watertable Min: > 0 inches
Depth to Bedrock Min: > 0 inches
Corrosion Potential - Uncoated Steel: Not Reported
Hydric Status: Not hydric
GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY ®
F.1.c
Packet Pg. 1108 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TC6541790.2s Page A-8
Min: 6.6
Max: 8.4
Min: 4
Max: 14
Silty Sand.

Sands with fines,
SOILS, Sands,

COARSE-GRAINED
Soils.
200), Silty
passing No.
than 35 pct.

Materials (more
2 9 inches 27 inches sandy clay loam Silt-Clay
Min: 6.6
Max: 8.4
Min: 4
Max: 14
Silty Sand.

Sands with fines,
SOILS, Sands,

COARSE-GRAINED
Soils.
200), Silty
passing No.
than 35 pct.

Materials (more
1 0 inches 9 inches sandy loam Silt-Clay
Soil Layer Information
Boundary Classification Saturated
hydraulic
conductivity
micro m/sec Layer Upper Lower Soil Texture Class AASHTO Group Unified Soil Soil Reaction (pH) Depth to Watertable Min: > 0 inches
Depth to Bedrock Min: > 0 inches
Corrosion Potential - Uncoated Steel: Low
Hydric Status: Not hydric
Soil Drainage Class: Well drained
movement of water, or soils with moderately fine or fine textures.

Hydrologic Group: Class C - Slow infiltration rates. Soils with layers impeding downward Soil Surface Texture: sandy loam
Soil Component Name: MONSERATE
Soil Map ID: 4
Max: Min:

Min: 0
Not reported Max: 0.42
and Sand.

Clayey Gravel
200), Silty, or
passing No.
pct. or less
materials (35
Granular
bedrock
2 14 inches 22 inches weathered
Soil Layer Information
Boundary Classification Saturated
hydraulic
conductivity
micro m/sec Layer Upper Lower Soil Texture Class AASHTO Group Unified Soil Soil Reaction (pH) GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY ®
F.1.c
Packet Pg. 1109 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TC6541790.2s Page A-9
Depth to Watertable Min: > 0 inches
Depth to Bedrock Min: > 0 inches
Corrosion Potential - Uncoated Steel: Low
Hydric Status: Not hydric
Soil Drainage Class: Well drained
water table, or are shallow to an impervious layer.

Hydrologic Group: Class D - Very slow infiltration rates. Soils are clayey, have a high Soil Surface Texture: fine sandy loam
Soil Component Name: FALLBROOK
Soil Map ID: 5
Min: 6.6
Max: 8.4
Min: 4
Max: 14
Silty Sand.

Sands with fines,
SOILS, Sands,

COARSE-GRAINED
Soils.
200), Silty
passing No.
than 35 pct.

Materials (more
Silt-Clay
sand
5 57 inches 70 inches loamy coarse
Min: 6.6
Max: 8.4
Min: 4
Max: 14
Silty Sand.

Sands with fines,
SOILS, Sands,

COARSE-GRAINED
Soils.
200), Silty
passing No.
than 35 pct.

Materials (more
4 44 inches 57 inches cemented Silt-Clay
Min: 6.6
Max: 8.4
Min: 4
Max: 14
Silty Sand.

Sands with fines,
SOILS, Sands,

COARSE-GRAINED
Soils.
200), Silty
passing No.
than 35 pct.

Materials (more
3 27 inches 44 inches indurated Silt-Clay
Soil Layer Information
Boundary Classification Saturated
hydraulic
conductivity
micro m/sec Layer Upper Lower Soil Texture Class AASHTO Group Unified Soil Soil Reaction (pH) GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY ®
F.1.c
Packet Pg. 1110 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TC6541790.2s Page A-10
Depth to Watertable Min: > 0 inches
Depth to Bedrock Min: > 0 inches
Corrosion Potential - Uncoated Steel: Low
Hydric Status: Not hydric
Soil Drainage Class: Somewhat excessively drained
textures.
moderately well and well drained soils with moderately coarse Hydrologic Group: Class B - Moderate infiltration rates. Deep and moderately deep, Soil Surface Texture: coarse sandy loam
Soil Component Name: HANFORD
Soil Map ID: 6
Max: Min:

Min: 0
Not reported Max: 0.42
Soils.
200), Silty
passing No.
than 35 pct.

Materials (more
Silt-Clay
bedrock
3 18 inches 22 inches weathered
Max: Min:

Min: 0
Not reported Max: 0.42
Soils.
200), Silty
passing No.
than 35 pct.

Materials (more
2 5 inches 18 inches sandy clay loam Silt-Clay
Max: Min:

Min: 0
Not reported Max: 0.42
Soils.
200), Silty
passing No.
than 35 pct.

Materials (more
1 0 inches 5 inches fine sandy loam Silt-Clay
Soil Layer Information
Boundary Classification Saturated
hydraulic
conductivity
micro m/sec Layer Upper Lower Soil Texture Class AASHTO Group Unified Soil Soil Reaction (pH) GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY ®
F.1.c
Packet Pg. 1111 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TC6541790.2s Page A-11

FEDERAL FRDS PUBLIC WATER SUPPLY SYSTEM INFORMATION

LOCATION

MAP ID WELL ID FROM TP
No Wells Found

FEDERAL USGS WELL INFORMATION

LOCATION

MAP ID WELL ID FROM TP
State Database 1.000
Federal FRDS PWS Nearest PWS within 1 mile
Federal USGS 1.000

WELL SEARCH DISTANCE INFORMATION
DATABASE SEARCH DISTANCE (miles)
opinion about the impact of contaminant migration on nearby drinking water wells. professional in assessing sources that may impact ground water flow direction, and in forming an EDR Local/Regional Water Agency records provide water well information to assist the environmental

LOCAL / REGIONAL WATER AGENCY RECORDS
Min: 5.6
Max: 7.8
Min: 42
Max: 141
Silty Sand.

Sands with fines,
SOILS, Sands,

COARSE-GRAINED
Soils.
200), Silty
passing No.
than 35 pct.

Materials (more
Silt-Clay
loam
coarse sandy
loamy sand to
3 40 inches 59 inches stratified
Min: 5.6
Max: 7.8
Min: 42
Max: 141
Silty Sand.

Sands with fines,
SOILS, Sands,

COARSE-GRAINED
Soils.
200), Silty
passing No.
than 35 pct.

Materials (more
2 7 inches 40 inches fine sandy loam Silt-Clay
Min: 5.6
Max: 7.8
Min: 42
Max: 141
Silty Sand.

Sands with fines,
SOILS, Sands,

COARSE-GRAINED
Soils.
200), Silty
passing No.
than 35 pct.

Materials (more
Silt-Clay
loam
1 0 inches 7 inches coarse sandy
Soil Layer Information
Boundary Classification Saturated
hydraulic
conductivity
micro m/sec Layer Upper Lower Soil Texture Class AASHTO Group Unified Soil Soil Reaction (pH) GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY ®
F.1.c
Packet Pg. 1112 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TC6541790.2s Page A-12
B24 CAEDF0000042577 1/2 - 1 Mile SSW
B23 CAEDF0000142393 1/2 - 1 Mile SSW
B22 CAEDF0000116487 1/2 - 1 Mile SSW
B21 CAEDF0000079557 1/2 - 1 Mile SSW
B20 CAEDF0000046543 1/2 - 1 Mile SSW
B19 CAEDF0000021016 1/2 - 1 Mile SSW
B18 CAEDF0000059972 1/2 - 1 Mile SSW
B17 CAEDF0000048095 1/2 - 1 Mile SSW
B16 CAEDF0000059545 1/2 - 1 Mile SSW
B15 CAEDF0000001717 1/2 - 1 Mile SSW
B14 CAEDF0000045914 1/2 - 1 Mile SSW
B13 CAEDF0000123281 1/2 - 1 Mile SSW
B11 CAEDF0000014192 1/2 - 1 Mile SSW
B10 CAEDF0000004686 1/2 - 1 Mile SSW
A9 CAEDF0000022883 1/2 - 1 Mile SSW
A8 CAEDF0000010312 1/2 - 1 Mile SSW
B7 CAEDF0000070472 1/2 - 1 Mile SSW
A6 CAEDF0000098441 1/2 - 1 Mile SSW
A5 CAEDF0000077278 1/2 - 1 Mile SSW
A4 CAEDF0000076199 1/2 - 1 Mile SSW
3 CADWR0000022168 1/2 - 1 Mile South
2 CADDW0000011940 1/2 - 1 Mile SSE
1 2462 1/2 - 1 Mile SSW

STATE DATABASE WELL INFORMATION

LOCATION

MAP ID WELL ID FROM TP
Note: PWS System location is not always the same as well location.

No PWS System Found

FEDERAL FRDS PUBLIC WATER SUPPLY SYSTEM INFORMATION

LOCATION

MAP ID WELL ID FROM TP
GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY ®
F.1.c
Packet Pg. 1113 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) EDR Inc.
0 2 3 2 0
2 7 6 0
2 5 60
2 8 4 0
2 5 2 0
2 8 0 0
2 4 8 0
2 7 6 0
2 4 4 0
2 4 40
2 8 00
2 760
2 800
2 9 60 2 9 2 0
2 9
1 760
20 1 5 20
1 5 20
1 4 8 0
1 4 4 0 1 4 00
1 4 00
1 6 00
3 0 4 0 3 0 40
1 400 3 0 0
2 0
9 6 0
2 9 2 0
2 9 2 0
2 8 8 0
2 8 8 0
2 8 8 0
2 8 4 0
2 8 4 0
2 8 4 0
2 8 4 0
2 8 0 0
2 8 0 0
2 8 0 0 2 8 0 0
2 7 6 0
2 7 6 0
2 7 6 0
2 7 6 0
2 7 6 0
2 7 2 0
2 7 20
2 7 2 0
2 7 2 0
2720
2 7 2 0
2 7 2 0
00 2 6 8 0
2 6 8 0
2 6 8 0
2 6 8 0
2 6 8 0
2 6 8 0
2 6 8 0 2 6 8 0
2 6 4 0
2 6 4 0
2 6 4
2 0
6 4 0
2 6 4 0
2 6 4 0
2 6 4 0
1 640
2 6 0 0
2 6 0 0
2 6 00
2 6 0 0
2 6 0 0
2 6 0 0
2 6 0 0
2 6 0 0
1 6 0 0
1 6 0 0
1 400
2 6 4 0 2 6 0 0
2 5 6 0
2 5 6 0
2 5 6 0
2 5 6 0
2 5 6 0
2 5 6 0
2 5 6 0 2 5 6 0
2 5 2 0
2 5 2 0
2 5 2 0
2 5 2 0 2 5 2 0
2 5 2 0
2 5 2 0
2 5 2 0
2 4 8 0
2 4 8 0
2 4 8 0
2 4 8 0
2 4 8 0
2 4 8 0
2 4 8 0
1 3 60
2 4 4 0
2 4 4 0
2 4 4 0
2 4 4 0
2 4 4 0
2 4 4 0
2 4 4 0 2 4 4 0
2 4 40
2 4 0 0
2 4 0 0
2 4 0 0
2 4 0 0
2 4 0 0
2 4 00
2 4 0 0
2 4 0 0 2 4 0 0
2 3 6 0
2 3 6 0
0 2 3 6 0
2 3 60 2 3 6 0 2 3 6 0
2 3 60
2 3 2 0
2 3 2 0
2 3 2 0
2 3 2 0
2 3 2 0
2 3 2 0 2 3 2 0
2 3 2 0
2 2 8 0
2 2 8 0
2 2 8 0
2 8 0
2 2 8 0
2 2 8 0
2 2 8 0 2 2 8 0
2 2 8 0 2 2 4 0
2 2 4 0
2 2 4 0
2 2 4
2 2 4 0
2 2 4 0
2 2 4 0
2 2 0 0
2 2 0 0
2 2 0 0
0 2 2 0 0
2 2 0 0
2 2 0 0
2 2 0 0
2 1 6 0
2 1 6 0
2 1 6 0
2 2 1 6 0
2 1 6 0
2 1 6 0 2 1 6 0
2 1 2 0
2 1 20
2 1 2 0
2 1 2 0
2 1 2 0
2 1 2 0
2 1 2 0
2 1 2 0
2 0 80
2 0 8
2 0 8 0
2 0 8 0
2 0 8 0
2 0 8 0
2 0 4 0
2 0
2 0 4 0
2 0 4 0
2 0 4 0
2 0 4 0
2 0 0 0
2 0 0 0
2 0
2 0 0 0
2 0 0 0
2 0 0 0
1 320
1 9 6 0
1 9 6 0
1 1 9 6 0
1 9 6 0
1 9 6 0
1 9 6 0
1 9 2 0
1 9 2 0
1 9 2 0
1 9 2 0
1 9 2 0
1 9 2 0
1 8 80
1 8 8 0
1 8 8 0
1 8 8 0
1 8 8 0
1 8 8 0
1 8 4 0
1 8 40 1 8 4 0
1 8 4 0
1 8 4 0
1 8 4 0
1 8 0 0
1 8 0 0
1 8 0 0
1 8 0 0
1 7
1 7 6 0
1 7 6 0 1 7 6 0
1 7 6 0
1 6 4 0
1 600
1 7 2 0
1 7 2 0
1 7 2 0 1 7 2 0
1 7 2 0
1 5 20
1 6 4 0
1 6 8 0
1 6 8 0
1 6 8 0
1 6 8 0
1 6 8 0
1 6 4 0
1 6 00
1 6 00
1 6 0 0
1 6 00
1 6 4 0
1 6 4 0 1 6 4 0 1 6 40
1 6 4 0
1 6 4 0
1 5 60
1 5 6 0
1 5 60
1 5 6 0
1 6 0 0
1 6 0 0
1 6 0 0
1 6 0 0
1 6 0 0
1 6 0
1 1 2 0
1 1 6 0
0 1 5 6 0
1 5 6 0
1 5 6 0 1 5 60
1 5 6 0
1 5 6 0 1 5 6
1 2 0 0
1 2 00
1 2 00
1 2 4 0
1 2 4 0
1 2 4 0
1 2 40
1 2 80
1 2 8 0
1 2 80
1 2 8 0
1 3 2 0
1 3 2 0
1 3 2 0
1 3 2 0
1 3 2 0
1 3 6 0
1 3 6 0
1 3 6 0
1 3 6 0
1 3 60
1 3 6 0
1 3 60 1 4 0 0
1 4 0 0
1 4 0 0
1 4 0 0
1 4 0 0
4 00
1 4
00 1 4 4 0
1 4 4 0
1 4 40
1 4 4 0
1 4 4 0
1 4 40
1 4 4 0
1 4 4 0
1 4 80
1 4 8 0
1 4 80
1 4 80
1 4 8 0 1 4 8 0
1 480
1 4 8 0
1 4 8 0
1 5 2 0
1 520
1 5 20
1 5 2 0
1 5 20
1 5 20
1 5 2 0
1 5 2 0
1 5 2 0
CA
F.1.c
Packet Pg. 1114 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TC6541790.2s Page A-14
Source: EDF Other Name: MW-14
Well ID: T0606548431-MW-14 Well Type: MONITORING
A4
SSW
1/2 - 1 Mile
Lower
CA WELLS CAEDF0000076199
GeoTracker Data: Not Reported
date=&global_id=&assigned_name=02S04W33R002S&store_num= Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=DWR&samp_ Other Name: 02S04W33R002S GAMA PFAS Testing: Not Reported Source: Department of Water Resources
Well ID: 02S04W33R002S Well Type: UNK
3 South
1/2 - 1 Mile
Lower
CA WELLS CADWR0000022168
GeoTracker Data: Not Reported
date=&global_id=&assigned_name=3301053-001&store_num=
Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=DHS&samp_ Other Name: WELL 01 GAMA PFAS Testing: Not Reported
Source: Department of Health Services
Well ID: 3301053-001 Well Type: MUNICIPAL
2 SSE
1/2 - 1 Mile
Lower
CA WELLS CADDW0000011940
Area serve: Not Reported
Pop serv: 0 Connection: 0
Zip: Not Reported Zip ext: Not Reported
City: Not Reported State: Not Reported
Hqname: Not Reported Address: Not Reported
System no: 3301053 System nam: Box Springs Canyon Apts
Comment 6: Not Reported Comment 7: Not Reported
Comment 4: Not Reported Comment 5: Not Reported
Comment 2: Not Reported Comment 3: Not Reported
Comment 1: 20860 BOX SPRINGS CANYON RD RIVERSIDE
Precision: 3 Status: AR
Latitude: 335700.0 Longitude: 1171750.0
Source nam: WELL 01 Station ty: WELL/AMBNT/MUN/INTAKE
System no: 3301053 Water type: G
District: 63 User id: 33C
Frds no: 3301053001 County: 33
Seq: 2462 Prim sta c: 02S/04W-33R04 S
1 SSW
1/2 - 1 Mile
Lower
CA WELLS 2462
Map ID
Direction
Distance
Elevation Database EDR ID Number
GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS ®
F.1.c
Packet Pg. 1115 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TC6541790.2s Page A-15
date=&global_id=T0606548431&assigned_name=MW-16&store_num= Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=EDF&samp_ GAMA PFAS Testing: Not Reported
Source: EDF Other Name: MW-16
Well ID: T0606548431-MW-16 Well Type: MONITORING
A8
SSW
1/2 - 1 Mile
Lower
CA WELLS CAEDF0000010312
gned_name=MW-5
GeoTracker Data: https://geotracker.waterboards.ca.gov/profile_report.asp?cmd=MWEDFResults&global_id=T0606548431&assi date=&global_id=T0606548431&assigned_name=MW-5&store_num= Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=EDF&samp_ GAMA PFAS Testing: Not Reported
Source: EDF Other Name: MW-5
Well ID: T0606548431-MW-5 Well Type: MONITORING
B7
SSW
1/2 - 1 Mile
Lower
CA WELLS CAEDF0000070472
gned_name=MW-13
GeoTracker Data: https://geotracker.waterboards.ca.gov/profile_report.asp?cmd=MWEDFResults&global_id=T0606548431&assi date=&global_id=T0606548431&assigned_name=MW-13&store_num= Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=EDF&samp_ GAMA PFAS Testing: Not Reported
Source: EDF Other Name: MW-13
Well ID: T0606548431-MW-13 Well Type: MONITORING
A6
SSW
1/2 - 1 Mile
Lower
CA WELLS CAEDF0000098441
gned_name=MW-15
GeoTracker Data: https://geotracker.waterboards.ca.gov/profile_report.asp?cmd=MWEDFResults&global_id=T0606548431&assi date=&global_id=T0606548431&assigned_name=MW-15&store_num= Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=EDF&samp_ GAMA PFAS Testing: Not Reported
Source: EDF Other Name: MW-15
Well ID: T0606548431-MW-15 Well Type: MONITORING
A5
SSW
1/2 - 1 Mile
Lower
CA WELLS CAEDF0000077278
gned_name=MW-14
GeoTracker Data: https://geotracker.waterboards.ca.gov/profile_report.asp?cmd=MWEDFResults&global_id=T0606548431&assi date=&global_id=T0606548431&assigned_name=MW-14&store_num= Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=EDF&samp_ GAMA PFAS Testing: Not Reported
GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS ®
F.1.c
Packet Pg. 1116 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TC6541790.2s Page A-16
Date: 04/1997
Average Water Depth: 40
Deep Water Depth: Not Reported
Shallow Water Depth: Not Reported
Groundwater Flow: Not Reported
A12 Site ID: 083302855T
SSW
1/2 - 1 Mile
Lower
AQUIFLOW 50782
gned_name=MW-6
GeoTracker Data: https://geotracker.waterboards.ca.gov/profile_report.asp?cmd=MWEDFResults&global_id=T0606548431&assi date=&global_id=T0606548431&assigned_name=MW-6&store_num= Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=EDF&samp_ GAMA PFAS Testing: Not Reported
Source: EDF Other Name: MW-6
Well ID: T0606548431-MW-6 Well Type: MONITORING
B11
SSW
1/2 - 1 Mile
Lower
CA WELLS CAEDF0000014192
gned_name=MW-4
GeoTracker Data: https://geotracker.waterboards.ca.gov/profile_report.asp?cmd=MWEDFResults&global_id=T0606548431&assi date=&global_id=T0606548431&assigned_name=MW-4&store_num= Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=EDF&samp_ GAMA PFAS Testing: Not Reported
Source: EDF Other Name: MW-4
Well ID: T0606548431-MW-4 Well Type: MONITORING
B10
SSW
1/2 - 1 Mile
Lower
CA WELLS CAEDF0000004686
gned_name=MW-12
GeoTracker Data: https://geotracker.waterboards.ca.gov/profile_report.asp?cmd=MWEDFResults&global_id=T0606548431&assi date=&global_id=T0606548431&assigned_name=MW-12&store_num= Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=EDF&samp_ GAMA PFAS Testing: Not Reported
Source: EDF Other Name: MW-12
Well ID: T0606548431-MW-12 Well Type: MONITORING
A9
SSW
1/2 - 1 Mile
Lower
CA WELLS CAEDF0000022883
gned_name=MW-16
GeoTracker Data: https://geotracker.waterboards.ca.gov/profile_report.asp?cmd=MWEDFResults&global_id=T0606548431&assi GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS ®
F.1.c
Packet Pg. 1117 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TC6541790.2s Page A-17
gned_name=MW-8
GeoTracker Data: https://geotracker.waterboards.ca.gov/profile_report.asp?cmd=MWEDFResults&global_id=T0606548431&assi date=&global_id=T0606548431&assigned_name=MW-8&store_num= Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=EDF&samp_ GAMA PFAS Testing: Not Reported
Source: EDF Other Name: MW-8
Well ID: T0606548431-MW-8 Well Type: MONITORING
B16
SSW
1/2 - 1 Mile
Lower
CA WELLS CAEDF0000059545
gned_name=MW-11
GeoTracker Data: https://geotracker.waterboards.ca.gov/profile_report.asp?cmd=MWEDFResults&global_id=T0606548431&assi date=&global_id=T0606548431&assigned_name=MW-11&store_num= Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=EDF&samp_ GAMA PFAS Testing: Not Reported
Source: EDF Other Name: MW-11
Well ID: T0606548431-MW-11 Well Type: MONITORING
B15
SSW
1/2 - 1 Mile
Lower
CA WELLS CAEDF0000001717
gned_name=MW-9
GeoTracker Data: https://geotracker.waterboards.ca.gov/profile_report.asp?cmd=MWEDFResults&global_id=T0606548431&assi date=&global_id=T0606548431&assigned_name=MW-9&store_num= Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=EDF&samp_ GAMA PFAS Testing: Not Reported
Source: EDF Other Name: MW-9
Well ID: T0606548431-MW-9 Well Type: MONITORING
B14
SSW
1/2 - 1 Mile
Lower
CA WELLS CAEDF0000045914
gned_name=MW-3
GeoTracker Data: https://geotracker.waterboards.ca.gov/profile_report.asp?cmd=MWEDFResults&global_id=T0606548431&assi date=&global_id=T0606548431&assigned_name=MW-3&store_num= Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=EDF&samp_ GAMA PFAS Testing: Not Reported
Source: EDF Other Name: MW-3
Well ID: T0606548431-MW-3 Well Type: MONITORING
B13
SSW
1/2 - 1 Mile
Lower
CA WELLS CAEDF0000123281
Map ID
Direction
Distance
Elevation Database EDR ID Number
GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS ®
F.1.c
Packet Pg. 1118 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TC6541790.2s Page A-18
gned_name=MW-19
GeoTracker Data: https://geotracker.waterboards.ca.gov/profile_report.asp?cmd=MWEDFResults&global_id=T0606548431&assi date=&global_id=T0606548431&assigned_name=MW-19&store_num= Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=EDF&samp_ GAMA PFAS Testing: Not Reported
Source: EDF Other Name: MW-19
Well ID: T0606548431-MW-19 Well Type: MONITORING
B20
SSW
1/2 - 1 Mile
Lower
CA WELLS CAEDF0000046543
gned_name=MW-10
GeoTracker Data: https://geotracker.waterboards.ca.gov/profile_report.asp?cmd=MWEDFResults&global_id=T0606548431&assi date=&global_id=T0606548431&assigned_name=MW-10&store_num= Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=EDF&samp_ GAMA PFAS Testing: Not Reported
Source: EDF Other Name: MW-10
Well ID: T0606548431-MW-10 Well Type: MONITORING
B19
SSW
1/2 - 1 Mile
Lower
CA WELLS CAEDF0000021016
gned_name=MW-2
GeoTracker Data: https://geotracker.waterboards.ca.gov/profile_report.asp?cmd=MWEDFResults&global_id=T0606548431&assi date=&global_id=T0606548431&assigned_name=MW-2&store_num= Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=EDF&samp_ GAMA PFAS Testing: Not Reported
Source: EDF Other Name: MW-2
Well ID: T0606548431-MW-2 Well Type: MONITORING
B18
SSW
1/2 - 1 Mile
Lower
CA WELLS CAEDF0000059972
gned_name=MW-7
GeoTracker Data: https://geotracker.waterboards.ca.gov/profile_report.asp?cmd=MWEDFResults&global_id=T0606548431&assi date=&global_id=T0606548431&assigned_name=MW-7&store_num= Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=EDF&samp_ GAMA PFAS Testing: Not Reported
Source: EDF Other Name: MW-7
Well ID: T0606548431-MW-7 Well Type: MONITORING
B17
SSW
1/2 - 1 Mile
Lower
CA WELLS CAEDF0000048095
Map ID
Direction
Distance
Elevation Database EDR ID Number
GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS ®
F.1.c
Packet Pg. 1119 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TC6541790.2s Page A-19
gned_name=MW-1
GeoTracker Data: https://geotracker.waterboards.ca.gov/profile_report.asp?cmd=MWEDFResults&global_id=T0606548431&assi date=&global_id=T0606548431&assigned_name=MW-1&store_num= Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=EDF&samp_ GAMA PFAS Testing: Not Reported
Source: EDF Other Name: MW-1
Well ID: T0606548431-MW-1 Well Type: MONITORING
B24
SSW
1/2 - 1 Mile
Lower
CA WELLS CAEDF0000042577
gned_name=MW-20
GeoTracker Data: https://geotracker.waterboards.ca.gov/profile_report.asp?cmd=MWEDFResults&global_id=T0606548431&assi date=&global_id=T0606548431&assigned_name=MW-20&store_num= Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=EDF&samp_ GAMA PFAS Testing: Not Reported
Source: EDF Other Name: MW-20
Well ID: T0606548431-MW-20 Well Type: MONITORING
B23
SSW
1/2 - 1 Mile
Lower
CA WELLS CAEDF0000142393
gned_name=MW-18
GeoTracker Data: https://geotracker.waterboards.ca.gov/profile_report.asp?cmd=MWEDFResults&global_id=T0606548431&assi date=&global_id=T0606548431&assigned_name=MW-18&store_num= Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=EDF&samp_ GAMA PFAS Testing: Not Reported
Source: EDF Other Name: MW-18
Well ID: T0606548431-MW-18 Well Type: MONITORING
B22
SSW
1/2 - 1 Mile
Lower
CA WELLS CAEDF0000116487
gned_name=MW-17
GeoTracker Data: https://geotracker.waterboards.ca.gov/profile_report.asp?cmd=MWEDFResults&global_id=T0606548431&assi date=&global_id=T0606548431&assigned_name=MW-17&store_num= Groundwater Quality Data: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/GamaDataDisplay.asp?dataset=EDF&samp_ GAMA PFAS Testing: Not Reported
Source: EDF Other Name: MW-17
Well ID: T0606548431-MW-17 Well Type: MONITORING
B21
SSW
1/2 - 1 Mile
Lower
CA WELLS CAEDF0000079557
Map ID
Direction
Distance
Elevation Database EDR ID Number
GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS ®
F.1.c
Packet Pg. 1120 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TC6541790.2s Page A-20
Date: 04/1997
Average Water Depth: 40
Deep Water Depth: Not Reported
Shallow Water Depth: Not Reported
Groundwater Flow: Not Reported
1G Site ID: 083302855T
SSW
1/2 - 1 Mile
Lower
AQUIFLOW 50782
Map ID
Direction
Distance
Elevation Database EDR ID Number
GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS ®
F.1.c
Packet Pg. 1121 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) TC6541790.2s Page A-21
Basement 1.700 pCi/L 100% 0% 0%
Living Area - 2nd Floor 0.450 pCi/L 100% 0% 0%
Living Area - 1st Floor 0.117 pCi/L 100% 0% 0%
Area Average Activity % <4 pCi/L % 4-20 pCi/L % >20 pCi/L Number of sites tested: 12
Federal Area Radon Information for RIVERSIDE COUNTY, CA : Zone 3 indoor average level < 2 pCi/L.
: Zone 2 indoor average level >= 2 pCi/L and <= 4 pCi/L.

Note: Zone 1 indoor average level > 4 pCi/L.

Federal EPA Radon Zone for RIVERSIDE County: 2
92557 8 0
______ ________ ________
Zipcode Num Tests > 4 pCi/L
Radon Test Results
State Database: CA Radon

AREA RADON INFORMATION

GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS
RADON
®
F.1.c
Packet Pg. 1122 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

TOPOGRAPHIC INFORMATION
USGS 7.5’ Digital Elevation Model (DEM)
Source: United States Geologic Survey
EDR acquired the USGS 7.5’ Digital Elevation Model in 2002 and updated it in 2006. The 7.5 minute DEM corresponds to the USGS 1:24,000- and 1:25,000-scale topographic quadrangle maps. The DEM provides elevation data with consistent elevation units and projection.

Current USGS 7.5 Minute Topographic Map
Source: U.S. Geological Survey

HYDROLOGIC INFORMATION
Flood Zone Data: This data was obtained from the Federal Emergency Management Agency (FEMA). It depicts 100-year and 500-year flood zones as defined by FEMA. It includes the National Flood Hazard Layer (NFHL) which incorporates Flood Insurance Rate Map (FIRM) data and Q3 data from FEMA in areas not covered by NFHL.

Source: FEMA
Telephone: 877-336-2627
Date of Government Version: 2003, 2015
NWI: National Wetlands Inventory. This data, available in select counties across the country, was obtained by EDR in 2002, 2005 and 2010 from the U.S. Fish and Wildlife Service.

State Wetlands Data: Wetland Inventory
Source: Department of Fish and Wildlife
Telephone: 916-445-0411

HYDROGEOLOGIC INFORMATION
AQUIFLOW Information System R
Source: EDR proprietary database of groundwater flow information EDR has developed the AQUIFLOW Information System (AIS) to provide data on the general direction of groundwater flow at specific points. EDR has reviewed reports submitted to regulatory authorities at select sites and has extracted the date of the report, hydrogeologically determined groundwater flow direction and depth to water table information.

GEOLOGIC INFORMATION
Geologic Age and Rock Stratigraphic Unit
Source: P.G. Schruben, R.E. Arndt and W.J. Bawiec, Geology of the Conterminous U.S. at 1:2,500,000 Scale - A digital representation of the 1974 P.B. King and H.M. Beikman Map, USGS Digital Data Series DDS - 11 (1994).

STATSGO: State Soil Geographic Database
Source: Department of Agriculture, Natural Resources Conservation Service (NRCS) The U.S. Department of Agriculture’s (USDA) Natural Resources Conservation Service (NRCS) leads the national Conservation Soil Survey (NCSS) and is responsible for collecting, storing, maintaining and distributing soil survey information for privately owned lands in the United States. A soil map in a soil survey is a representation of soil patterns in a landscape. Soil maps for STATSGO are compiled by generalizing more detailed (SSURGO) soil survey maps.

SSURGO: Soil Survey Geographic Database
Source: Department of Agriculture, Natural Resources Conservation Service (NRCS) Telephone: 800-672-5559
SSURGO is the most detailed level of mapping done by the Natural Resources Conservation Service, mapping scales generally range from 1:12,000 to 1:63,360. Field mapping methods using national standards are used to construct the soil maps in the Soil Survey Geographic (SSURGO) database. SSURGO digitizing duplicates the original soil survey maps. This level of mapping is designed for use by landowners, townships and county natural resource planning and management.

TC6541790.2s Page PSGR-1

PHYSICAL SETTING SOURCE RECORDS SEARCHED
F.1.c
Packet Pg. 1123 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

LOCAL / REGIONAL WATER AGENCY RECORDS

FEDERAL WATER WELLS
PWS: Public Water Systems
Source: EPA/Office of Drinking Water
Telephone: 202-564-3750
Public Water System data from the Federal Reporting Data System. A PWS is any water system which provides water to at least 25 people for at least 60 days annually. PWSs provide water from wells, rivers and other sources.

PWS ENF: Public Water Systems Violation and Enforcement Data Source: EPA/Office of Drinking Water
Telephone: 202-564-3750
Violation and Enforcement data for Public Water Systems from the Safe Drinking Water Information System (SDWIS) after August 1995. Prior to August 1995, the data came from the Federal Reporting Data System (FRDS).

USGS Water Wells: USGS National Water Inventory System (NWIS) This database contains descriptive information on sites where the USGS collects or has collected data on surface water and/or groundwater. The groundwater data includes information on wells, springs, and other sources of groundwater.

OTHER STATE DATABASE INFORMATION
Groundwater Ambient Monitoring & Assessment Program
State Water Resources Control Board
Telephone: 916-341-5577
The GAMA Program is Californias comprehensive groundwater quality monitoring program. GAMA collects data by testing the untreated, raw water in different types of wells for naturally-occurring and man-made chemicals. The GAMA data includes Domestic, Monitoring and Municipal well types from the following sources, Department of Water Resources, Department of Heath Services, EDF, Agricultural Lands, Lawrence Livermore National Laboratory, Department of Pesticide Regulation, United States Geological Survey, Groundwater Ambient Monitoring and Assessment Program and Local Groundwater Projects.

Water Well Database
Source: Department of Water Resources
Telephone: 916-651-9648
California Drinking Water Quality Database
Source: Department of Public Health
Telephone: 916-324-2319
The database includes all drinking water compliance and special studies monitoring for the state of California since 1984. It consists of over 3,200,000 individual analyses along with well and water system information.

California Oil and Gas Well Locations
Source: Dept of Conservation, Geologic Energy Management Division Telephone: 916-323-1779
Oil and Gas well locations in the state.

California Earthquake Fault Lines
Source: California Division of Mines and Geology
The fault lines displayed on EDR’s Topographic map are digitized quaternary fault lines prepared in 1975 by the United State Geological Survey. Additional information (also from 1975) regarding activity at specific fault lines comes from California’s Preliminary Fault Activity Map prepared by the California Division of Mines and Geology.

RADON
State Database: CA Radon
Source: Department of Public Health
Telephone: 916-210-8558
Radon Database for California
TC6541790.2s Page PSGR-2

PHYSICAL SETTING SOURCE RECORDS SEARCHED
F.1.c
Packet Pg. 1124 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459) Area Radon Information
Source: USGS
Telephone: 703-356-4020
The National Radon Database has been developed by the U.S. Environmental Protection Agency (USEPA) and is a compilation of the EPA/State Residential Radon Survey and the National Residential Radon Survey.

The study covers the years 1986 - 1992. Where necessary data has been supplemented by information collected at private sources such as universities and research institutions.

EPA Radon Zones
Source: EPA
Telephone: 703-356-4020
Sections 307 & 309 of IRAA directed EPA to list and identify areas of U.S. with the potential for elevated indoor radon levels.

OTHER
Airport Landing Facilities: Private and public use landing facilities Source: Federal Aviation Administration, 800-457-6656
Epicenters: World earthquake epicenters, Richter 5 or greater Source: Department of Commerce, National Oceanic and Atmospheric Administration California Earthquake Fault Lines: The fault lines displayed on EDR’s Topographic map are digitized quaternary fault lines, prepared in 1975 by the United State Geological Survey. Additional information (also from 1975) regarding activity at specific fault lines comes from California’s Preliminary Fault Activity Map prepared by the California Division of Mines and Geology.

TC6541790.2s Page PSGR-3

PHYSICAL SETTING SOURCE RECORDS SEARCHED
F.1.c
Packet Pg. 1125 Attachment: Appendicies A-G (6434 : Gateway Heights Tract 38459)

CITY OF

MORENO VALLEY

INITIAL STUDY FOR

THE GATEWAY HEIGHTS PROJECT

GATEWAY HEIGHTS PROJECT
PEN 21-0066
February 2023
Lead Agency

CITY OF MORENO VALLEY
14177 Frederick Street
Moreno Valley, California 92553
Prepared By
PSOMAS
Contact: Sean Noonan, AICP
5 Hutton Centre Drive, Suite 300
Santa Ana, California 92707
Volume 2b
F.1.d
Packet Pg. 1126 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459)

TABLE OF CONTENTS

APPENDICES
Volume 2A
A Air Quality Calculations
B Biological Resources Report, Jurisdictional Delineation, Rare Plant Survey Report, Burrowing Owl Survey Report, and Determination of Biologically Equivalent or Superior Preservation (DBESP) Report
C Cultural Reports
D Energy Calculations
E Geotechnical Report
F Slope Stability Report
G EDR Radius Map Report
Volume 2B
H Preliminary Drainage Report
I Project Specific Water Quality Management Plan
J Planned Unit Development
K Traffic Impact Analysis
L Fire Hazard Analysis and Approach Memorandum
F.1.d
Packet Pg. 1127 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) Appendix H
Preliminary Drainage Report

F.1.d
Packet Pg. 1128 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) Preliminary
Drainage Report
For
Gateway Heights
Moreno Valley, CA
A Hillside Residential Cluster Unit Development
Located 220’N of Jennings Ct and Morton Rd.

February 22, 2021
Revised March 28, 2022
Revised October 24, 2022
Revised November 29, 2022
UNITED ENGINEERING GROUP‐CALIFORNIA, INC
8885 Haven Avenue, Suite 195
Rancho Cucamonga, CA 91730
(909) 466‐9240
Provided for:

Ackerman Law
Jason Ackerman
3200 E. Guasti Road
Suite 100
Ontario, CA 91761
HengHou Group
Shizao Zheng
1378 West Zhongshan Rd
Ningbo, China 315‐016
Project # 30182
PEN21‐0066
LST21‐0026
F.1.d
Packet Pg. 1129 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459)

!"#$%%&

6/30/24
F.1.d
Packet Pg. 1130 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) 3 TABLE OF CONTENTS

DESCRIPTION PDF PAGE

1. INTRODUCTION ................................................................... 4

1.1.SITE DESCRIPTION ........................................................... 4

1.2.PURPOSE OF REPORT ....................................................... 4

1.3.FEMA INFORMATION .......................................................... 4

2. EXISTING DRAINAGE PATTERNS ................................................. 5

2.1.OFFSITE ....................................................................... 5

2.2.ONSITE ........................................................................ 5

3. PROPOSED DRAINAGE PATTERNS ............................................... 5

3.1.OFFSITE ....................................................................... 5

3.2.ONSITE ......................................................................... 6

4. HYDROLOGIC CONDITIONS ....................................................... 6

4.1.OFFSITE ........................................................................ 6

4.2.ONSITE ......................................................................... 7

5. HYDRAULIC CONDITIONS ........................................................ 10

5.1.EXISTING FEATURES ......................................................... 10

5.2.PROPOSED CONDITIONS ..................................................... 10

5.3.ROADS ......................................................................... 11

6. WATER QUALITY .................................................................. 11

7. MAINTENANCE...................................................................... 11

LIST OF FIGURES
FIGURE 1 – Existing Conditions Exhibit ............................................. 14 FIGURE 2 – Onsite Existing Condition Exhibit (SCS Hydrograph) ............... 16 FIGURE 3 – Onsite Proposed Condition Exhibit ................................... 18

APPENDICES
Appendix A
Rational Method Input Details .............................................. 19 Existing Condition Rational Output ........................................ 31 Existing Condition Onsite SCS Hydrograph Output ....................... 56 Proposed Condition Onsite SCS Hydrograph Output ..................... 309 Proposed Condition Basin Routing Output ................................ 574 Appendix B: Hydraulic Calculations ................................................ 574 Appendix C: WQMP Calculations .................................................... 668 Appendix D: Gateway Heights Grading and Site Plan ........................... 671 Appendix E: West End Moreno Master Drainage Plan Exhibit .................. 674 F.1.d
Packet Pg. 1131 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) 4 1 INTRODUCTION

1.1. SITE DESCRIPTION

1.1.1. LOCATION
Gateway Heights is located 220 feet north of Jennings Court and east of Morton Road in the City of Moreno Valley, Riverside County. It is parcel 256-150-001.

1.1.2. EXISTING FEATURES
The property contains 32.8 acres in the foothill of the Box Springs Mountain Reserve Park. The project proposes to develop approx. 15.43 acres of 32.8 into 108 detached condominium units with the dwelling units in an 8-unit “cluster” concept. The site drains northeast to southwest with steep slopes, especially in the hillside areas. It is bordered on three sides with vacant land, and of the south by existing single-family residences.

1.1.3. PROPOSED CONDITION
It is proposed that the subject property be developed to permit development of residential lots per the request of the client. The site will contain 108 single family lots via Planned Unit Development. Access to the site will be from Morton Road. There will be open space area placed near the entrance at the base of the hill to provide flood and water quality mitigation.

1.2. PURPOSE OF REPORT
The purpose of this report is to review the West End Moreno Master Drainage Plan (adopted 1991) and ensure design compatibility with the proposed project. This report will analyze the hydrology of the landscape and assess the hydraulic conditions of the subject parcel to verify consistency with the previously listed reports. Where necessary, control measures will be recommended to alleviate existing flood problems and provide for water quality concerns using the County of Riverside Flood Control processes.

1.3. FEMA INFORMATION
The Flood Insurance Rate Maps (Panel 06065C0733G) for this subject property shows that the site falls within Zone X. Zone X denotes areas determined to be “Areas of Undermined Flood Hazard”.

F.1.d
Packet Pg. 1132 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) 5 2. EXISTING DRAINAGE PATTERNS

2.1. OFFSITE
The West End Moreno Master Drainage Plan studied the drainage patterns for this overall area and identified Line A and Line B along the northwestern and southwestern edges of the property. Line A is to the north of the proposed development and thus no improvements are proposed. Line B is located offsite to the south and west of the property. The project area is within the contributory area of Line B. Flows that originate in the hillside areas drain southwesterly and some defined watercourses have formed. A portion of the site drains southwesterly to Line B, and the other portion drains westerly along another main flow path along the north side of Morton Road. This report analyzed three main watercourses affecting the development limits. Two of the watercourses continue southwesterly, join each other at point 305, and then intersect with the large wash that runs along the southwest edge of the property at point 306. Points 304 and 403 have been determined at 90.6 cfs and 26.7 cfs respectively. Another smaller area impacts the northeastern edge of the development area and is contributory to Line A. Point 502 has been determined at 7.8 cfs. Refer to the Existing Conditions Exhibit. In addition to the the main washes that impact the eastern edge of the site and continue through the site, there are four concentrations of flow that originate onsite and discharge along the western property line. Those too are analyzed. Points 602, 702, 802, and 902 have been determined at 5.8 cfs, 1.8 cfs, 5.7 cfs, and 8.0 cfs respectively. Refer to the Existing Conditions Exhibit.

2.2. ONSITE
The site has been disturbed and graded in recent history (mostly for fire mitigation). There are existing concentrations of storm runoff traversing the site. There are defined jurisdictional watercourses along the southwestern edge of the property that has historically conveyed storm runoff along the back of the existing homes, and then across Morton Road.

There are a few minor non jurisdictional concentrations of flow at the base of the hills that originate on site from the hillside. Using the proposed development limits, this report analyzed the 1,3,6, and 24hr, 2,5,10, and 100 year runoff events (per the RCFCWCD method). Refer to the Onsite Existing Conditions Exhibit

3. PROPOSED DRAINAGE PATTERNS

3.1. OFFSITE
For the offsite, hillside runoff, the project is proposing three storm drain collection points. Point 502 is along the northern edge, is 7.8 cfs, and will be carried by a 24” pipe through the project, continuing westerly along the F.1.d
Packet Pg. 1133 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) 6 existing flow path. The other two, points 403, and 304, are 26.7 cfs, and

90.6 cfs, respectively. 403 will be carried by a proposed 24” pipe and connected to a proposed 36” pipe that carries the flow from point 304.

That proposed storm drain system also connects to the historic flow path.

Preliminary pipe capacity calculations are located in Appendix B. At time of final design additional design including HGL will be required.

The project is adjacent to the proposed MDP Line B crossing, which is just south of the projects entrance, but is offsite. The project has been designed to route the hillside flows through the project via a proposed 36” pipe, then outlet to the Line B system. The project proposes to build the Line B Crossing. Two (2) 3’ x 6’ RCB culverts will be built under Morton Road. From there flows will outlet within an existing channel that carries the regional flows and mimicking the existing conditions just south of the project.

3.2. ONSITE
The Gateway Heights project will provide developed roads, combination bio retention and detention basins of sufficient size to accept, clean, mitigate the increase, and route the runoff from the proposed site. Basins for Gateway Heights have been designed to detain the difference in runoff hydrograph volume between the "developed" condition and the "predeveloped" condition using basin routing calculations. Runoff will be routed to bio-retention basins throughout the project via storm drain inlets. The water quality basins will drain via underdrains into a storm drain system and eventually into the proposed Line B System. Outlet design to be provided with final routing calculations to match existing conditions. It is anticipated that existing conditions can be matched.

4. HYDROLOGIC CONDITIONS
The Synthetic Unit Hydrograph and Rational Methods have been employed to determine peak runoff amounts and volumes. The Riverside County Flood Control and Water Conservation District (RCFCD & WCD) Hydrology Manual (reference 1) was used to develop the hydrological parameters for the 1, 3, 6, and 24 hr, 2, 5, 10, and 100 year storm events. Refer to appendix A for detail.

4.1. OFFSITE
The offsite runoff potential has been analyzed with the Rational Method per the Riverside County Flood Control and Water Conservation District (RCFCD & WCD) Hydrology Manual (reference 1).

The Following Data is the result of the calculations;

F.1.d
Packet Pg. 1134 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) 7 4.2. ONSITE
In the existing condition, the proposed development envelope is varying terrain with steeper areas. It is proposed to be developed into single family cluster lots. The onsite runoff potential has been analyzed with the Synthetic Unit Hydrograph Method per the Riverside County Flood Control and Water Conservation District (RCFCD & WCD) Hydrology Manual (reference 1).

The Following Data is used in the calculations;
Soils Group – C
Pre-development Runoff Index – 84 with 0% impervious
Post-development Runoff Index – 69 with 65% impervious
Rainfall Data – Winchester Slope = 0.52
2yr – 1hr = 0.466”
100yr – 1hr = 1.19”
2yr – 3hr = 0.799”
100yr – 3hr = 1.89”
2yr – 6hr = 1.09”
100yr – 6hr = 2.55”
2yr – 24hr = 1.93”
100yr – 24hr = 4.64”
Per RCFCWCD method, the results of the hydrograph analysis are in the below tables.
basin routing is provided to show the proposed condition can be mitigated to less than the existing condition. The following tables summarize that volume calculations.

F.1.d
Packet Pg. 1135 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) 8 As seen in the above calculations, Area A post development runoff is less than the pre-development runoff. This is expected due to the reduced area in the post development area. The balance of the area is routed into Area B. Area B will still need to mitigate the developed condition of B, plus the areas of A and C that are routed to the basin in the proposed condition, to less than the existing runoff from Area B. While Basin A does not require flood runoff mitigation it is still needed for water quality. Basin stage storage discharge details are in the below tables;
F.1.d
Packet Pg. 1136 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) 9 Basin B is preliminarily sized at 1.1 ac-ft, and Basin A is sized at a volume of

0.4 ac-ft. The following tables show the results of routing the post development storms through the basins;
F.1.d
Packet Pg. 1137 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) 10 5. HYDRAULIC CONDITIONS

5.1. Existing Conditions
There are 8 primary washes that were analyzed for hydraulic conditions in the existing condition. They are identified in the existing conditions maps at concentration points 104, 304, 403, 502, 602, 702, 802, and 902. These are mountain/foothill washes with steep slopes. The velocities are 15 ft/s, 12 ft/s, 8 ft/s, 11 ft/s, 7 ft/s, 5 ft/s, 6 ft/s, and 6 ft/s respectively.

5.2. Proposed Conditions
The proposed condition for this site will be to construct a network of public roads within the site to convey storm runoff into the bioretention/water quality basins. The two Bio-retention basins (Basins A and B) are planned in the southwest corner of the site to clean and discharge the flood water.

Basin B is north of the main entrance, and Bains A is within the enlarged median of the main entrance. These structures will be designed per Riverside County LID – Bioretention standards in more detail at time of final design. Refer to the Proposed Conditions Exhibit for a sample section. The flows will be discharged offsite via underdrains and overflow grates connected to stormdrain pipes and outlets designed aligned with existing washes. The eastern offsite concentrations identified in section 4.1 and 5.1 and on the existing conditions offsite exhibit, points 304, 403, and 502, will be carried through the project by storm drain and discharged at or near historic flow paths. They are preliminarily sized as shown on Figure 2, with preliminary sizing in Appendix B. Point 503 will be diverted from its existing flow path slightly north within the same wash. This is a small diversion of flow. The discharge points at 602, 702, and 802 will be eliminated and all onsite drainage within area B will be routed through Basin B and outleted at point 902. This concentration of flow will require adjacent property owner approval. All of these concentration points join in the same stream within that owner’s site, and it is preferable to have them controlled via one outlet and channel system. It is assumed the project will be required to build its half width along the limited frontage of Morton Road along with any required tapers. Control of drainage along the project’s frontage is difficult. First, the project is well above grade from the road, eliminating any possibility to route road runoff northeasterly into the project. Second, there is a high point in Morton Road very near the project entrance, and thus the very minor road runoff (0.3 acre area total, <1cfs) will be routed northwesterly and southeasterly along the road as it is currently carried. Analysis and Design of drainage control facilities for this area will be provided at final design in conjunction with Morton Road design plans. The runoff carried by Morton Road will be reduced by the construction of the Project and the Line B System.

F.1.d
Packet Pg. 1138 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) 11 5.3. Roads
Interior roads will consist of pavement thickness in conformance with the Geotechnical Report, when available, and per County of Riverside Standards. Roads will have 36 foot widths measured curb face to curb face per County of Riverside Standards. Streets will be designed to pass the 10- year storm water within the curb, with the 100-year flows contained within the right-of-way. All interior roads will have cross slopes of two (2) percent. With the high slopes due to the hillside on the proposed map, the 10 yr peak runoff calculated for the 2.08% minimum slope can carry 76 cfs in the street. That exceeds the expected 100 year peak runoff for the onsite flows (28cfs). At final design storm drain may be placed to keep the intersections dry. Storm drain is also required for outlet from the bioretention basins. Minimum size for these lines is 24” per City of Moreno Valley Standards, all lines are to be 24” unless otherwise noted. At time of final design, detailed storm drain calculations and sizing will be required. It is not anticipated that any onsite storm drain will require RCFCD maintenance, and thus will be reviewed by Moreno Valley.

Morton Road will be widened along the project entrance. Additionally, Line B will be constructed under Morton Road per the MDP just south of the project. This addition of Line B will remove a significant amount of existing runoff that enters Morton Road from the hillside (334 cfs). That existing runoff that floods Morton Road and Jennings Court intersection will be routed by Line B to the west side of Morton and discharged to an existing natural channel.

6. WATER QUALITY
All of the onsite water quality runoff volume is proposed to be collected within the proposed drainage system and treatment will be handled via combination bio-retention and flood storage basins at the southwestern edge. Detailed design of the basins, outlet structures, and any filter media will be prepared at final design but must treat the volume indicated in the Project Preliminary WQMP. Preliminary sizing and design for the basins is contained in Appendix C and as shown on the Proposed Conditions Exhibit Basin Detial. Final design of the basins, complete with landscaping and pipe plans will be provided with final construction plans and landscape plans.

7. MAINTENANCE
It is proposed that all of the onsite features including internal project open space, basins, and storm drainpipes will be maintained by the property owner association.

Determination of the Line B facility’s maintenance responsibility will be determined during the final design process.

F.1.d
Packet Pg. 1139 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) 12 REFERENCES

1. Riverside County Flood Control and Water Conservation District Hydrology Manual, April 1978.

F.1.d
Packet Pg. 1140 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) 13 Figure 1
Existing Condition Exhibit
F.1.d
Packet Pg. 1141 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) F.1.d
Packet Pg. 1142
Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) 15 Figure 2
Onsite Existing Condition Exhibit
(Used for SCS Pre-post analysis)
F.1.d
Packet Pg. 1143 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) F.1.d
Packet Pg. 1144
Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) 17 Figure 3
Proposed Condition Exhibit
F.1.d
Packet Pg. 1145 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) F.1.d
Packet Pg. 1146
Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) 15 Appendix A
F.1.d
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Packet Pg. 1157 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) F.1.d
Packet Pg. 1158 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) 19 Existing Condition Rationale Runoff
F.1.d
Packet Pg. 1159 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) Riverside County Rational Hydrology Program
CIVILCADD/CIVILDESIGN Engineering Software,(c) 1989 - 2012 Version

8.0 Rational Hydrology Study Date: 11/08/21
File:moval33.out
------------------------------------------------------------------ ------
Gateway Heights
Offsite Drainage
Area A - 100yr Peak Runoff

------------------------------------------------------------------ ------
********* Hydrology Study Control Information ********** English (in-lb) Units used in input data file
------------------------------------------------------------------ ------
Program License Serial Number 6232
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Rational Method Hydrology Program based on
Riverside County Flood Control & Water Conservation District 1978 hydrology manual
Storm event (year) = 100.00 Antecedent Moisture Condition = 3 Standard intensity-duration curves data (Plate D-4.1)
For the [ Riverside-Foothill ] area used.
10 year storm 10 minute intensity = 2.140(In/Hr)
10 year storm 60 minute intensity = 0.800(In/Hr)
100 year storm 10 minute intensity = 3.210(In/Hr)
100 year storm 60 minute intensity = 1.200(In/Hr)
Storm event year = 100.0
Calculated rainfall intensity data:
1 hour intensity = 1.200(In/Hr)
Slope of intensity duration curve = 0.5500
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ++++
Process from Point/Station 101.000 to Point/Station
102.000
**** INITIAL AREA EVALUATION ****
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Initial area flow distance = 714.000(Ft.)
Top (of initial area) elevation = 2940.000(Ft.)
Bottom (of initial area) elevation = 2520.000(Ft.)
Difference in elevation = 420.000(Ft.)
F.1.d
Packet Pg. 1160 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) Slope = 0.58824 s(percent)= 58.82
TC = k(0.530)*[(length^3)/(elevation change)]^0.2
Initial area time of concentration = 8.163 min.

Rainfall intensity = 3.595(In/Hr) for a 100.0 year storm UNDEVELOPED (poor cover) subarea
Runoff Coefficient = 0.885
Decimal fraction soil group A = 0.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 1.000
RI index for soil(AMC 3) = 95.60
Pervious area fraction = 1.000; Impervious fraction = 0.000 Initial subarea runoff = 22.584(CFS)
Total initial stream area = 7.100(Ac.)
Pervious area fraction = 1.000
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Process from Point/Station 102.000 to Point/Station
103.000
**** IRREGULAR CHANNEL FLOW TRAVEL TIME ****
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Estimated mean flow rate at midpoint of channel = 42.273(CFS) Depth of flow = 0.587(Ft.), Average velocity = 4.912(Ft/s) ******* Irregular Channel Data ***********
----------------------------------------------------------------- Information entered for subchannel number 1 :

Point number 'X' coordinate 'Y' coordinate
1 0.00 1.00
2 25.00 0.00
3 50.00 1.00
Manning's 'N' friction factor = 0.035
----------------------------------------------------------------- Sub-Channel flow = 42.273(CFS)
' ' flow top width = 29.337(Ft.)
' ' velocity= 4.912(Ft/s)
' ' area = 8.607(Sq.Ft)
' ' Froude number = 1.598
Upstream point elevation = 2520.000(Ft.)
Downstream point elevation = 2460.000(Ft.)
Flow length = 873.000(Ft.)
Travel time = 2.96 min.

Time of concentration = 11.13 min.

Depth of flow = 0.587(Ft.)
Average velocity = 4.912(Ft/s)
Total irregular channel flow = 42.273(CFS)
Irregular channel normal depth above invert elev. = 0.587(Ft.) Average velocity of channel(s) = 4.912(Ft/s)
Adding area flow to channel
UNDEVELOPED (poor cover) subarea
Runoff Coefficient = 0.882
Decimal fraction soil group A = 0.000
Decimal fraction soil group B = 0.000
Decimal fraction soil group C = 0.000
Decimal fraction soil group D = 1.000
RI index for soil(AMC 3) = 95.60
Pervious area fraction = 1.000; Impervious fraction = 0.000 F.1.d
Packet Pg. 1161 Attachment: Appendicies H-L (6434 : Gateway Heights Tract 38459) Rainfall intensity = 3.032(In/Hr) for a 100.0 year storm Subarea runoff = 39.314(CFS) for 14.700(Ac.)
Total runoff = 61.898(CFS) Total area = 21.800(Ac.)
Depth of flow = 0.677(Ft.), Average velocity = 5.403(Ft/s) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ++++
Process from Point/Station 102.000 to Point/Station
103.000
**** CONFLUENCE OF MAIN STREAMS ****
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The following data inside Main Stream is listed:

Moreno Valley City CouncilDecember 19, 2023

Moreno Valley City Council
December 19, 2023