Appendix 2C JD.pdf — Moreno Valley City Council, September 17, 2024

Appendix 2C
Jurisdictional Delineation

Sunset Crossings Residential Project
Initial Study

5 Hutton Centre Drive, Suite 500 | Santa Ana, CA 92707
Office: 949.472.3505 | Fax: 949.472.8373 | mbakerintl.com MBAKERINTL.COM
October 27, 2022 JN 184659
HIGHPOINTE COMMUNITIES, INC.

Attn: Ross Yamaguchi
530 Technology, Suite 100
Irvine, California 92618

SUBJECT: Delineation of State and Federal Jurisdict ional Waters for the Sunset Crossing TTM 38443 Project – City of Moreno Valley, County of Riverside, California Dear Mr. Yamaguchi:

Michael Baker International (Michael Baker) has prepared this report to document the results of a literature review and formal delineation of State and federal jurisdictional waters, including wetlands, that was conducted for the proposed Sunset Crossing TTM 38443 Project (project or project site) located in the City of Moreno Valley, Riverside County, California. Spe cifically, the delineation was conducted to identif y and document the extent of aquatic and other hydrologic features within the project site that potentially fall under the jurisdictional authority of the U.S. Army Corps of Engineers (USACE), the Regional Water Quality Control Board (RWQCB), and the California Department of Fish and Wildlife (CDFW). This report summarizes the methodology utilized throughout the course of the delineation, defines the jurisdiction al authority of the regulatory agencies, and documents the findings made by Michael Baker. This report presents Michael Baker’s determination of jurisdict ional boundaries based on the most up-to-date regulations, written policy, and guidance approved by the regulatory agencies. However, please note th at only the regulatory agencies can make a final determination of jurisdictional limits.

PROJECT LOCATION
The project site is located within the City of Moreno Valley, generally to the north of Alessandro Boulevard, east of Nason Street, south of Cottonwood Avenue, and west of Marion Road (refer to Figure 1, Regional Vicinity , provided in Attachment A). The project site is de picted in Section 10, Township 3 South, Range 3 West, on the U.S. Geological Survey’s (USGS) Sunnymead, California 7.5-minute quadrangle map (refer to Figure 2, Project Vicinity ). Specifically, the project site is located on ass essor’s parcel numbers (APN) 488-190-005, 488-190-027, and 488-190-028, and is b ounded by Cottonwood Avenue to the north, residential development and Martha Crawford Street to the northeast, undeveloped land and Bay Avenue to the south, and residential development and Nason Street to the west (refer to Figure 3, Project Site ).

Sunset Crossing TTM 38443 Project 2
Delineation of State and Federal Jurisdictional Waters

PROJECT DESCRIPTION
The proposed project includes the development of up to 134 residential units, a water basin, a park, a nd road construction on 28.2 gross acres (23.1 net acres). Refer to Appendix A, Conceptual Site Plan.

STATE AND FEDERAL REGULATIONS
There are three key agencies that regulate activiti es within inland lakes, streams, wetlands, and ripa rian areas in California. The USACE regulates activities that result in the discharge of dredged or fill ma terial into waters of the U.S. (WoUS), including wetlands, pursuant to Section 404 of the federal Clean Water Act (CWA) and Section 10 of the Rivers and Harbors Act. Of the State agencies, the RWQCB regulates discharges to waters of the State (WotS), including wetlands, pursuant to Section 401 of the CWA, Section 13263 of the California Porter-Cologne Water Quality Control Act (Porter-Cologne Act), and State Wetland Definition and Procedures for Discharges of Dredged or Fill Material to Waters of the State; and, the CDFW regulates alterations to lakes, streambeds, and rip arian habitats pursuant to Section 1600 et seq . of the California Fish and Game Code (CFGC).

LITERATURE REVIEW
Prior to conducting the field delineation, Michael Baker conducted a review of relevant literature and materials to obtain a general understanding of the environmental setting and preliminarily identify features/areas within the project site that may fall under the jurisdiction of the regulatory agencies. Refer to the subsections below for a summary of relevant mat erials, databases, technical reports, and guidance documents that were obtained/reviewed by Michael Ba ker. In addition, a complete list of references is provided as Attachment G to this report.

San Jacinto River Watershed
The project site is located within the Perris Valle y Hydrologic Subarea 802.11 (HSA) of the Perris Hydrologic Area 802.10 (HA), which in turn is locat ed within the San Jacinto Valley Hydrologic Unit (802.0) of the larger San Jacinto River Watershed ( HUC 18070202). The San Jacinto River Watershed covers approximately 780 square miles within wester n Riverside County. Flows originate in Santa Rosa and the San Jacinto Mountains and form the San Jacinto River, which flows generally west until terminating at the lowest point within the watershed at Lake El sinore. Tributaries to the San Jacinto River includ e Cottonwood Canyon Creek, Canyon Lake, Salt Creek, Perris Valley Channel, Bautista Creek, Indian Creek, North Forks San Jacinto River, Logan Creek, Stone Creek, Black Mountain Creek, Fuller Mill Creek, South Fork San Jacinto River, Dry Creek, Strawberry Creek , Coldwater Creek, Spillway Creek, Canyon Creek, Lake Hemet, Herkey Creek, Fobes Canyon Creek, Pipe Creek, Martinez Creek, Gold Shot Creek, and Penrod Canyon Creek.

Sunset Crossing TTM 38443 Project 3
Delineation of State and Federal Jurisdictional Waters
Soils
According to the Custom Soil Resources Report for Western Riverside Area, California (U.S. Department of Agriculture [USDA] 2022a), the project site is u nderlain by two soil map units: HcC: Hanford coarse sandy loam, 2 to 8 percent slopes (HcC); and RaB3: Ramona sandy loam, 0 to 5 percent slopes, severely eroded (RaB3). Michael Baker also reviewed the Hydric Soils List for California (USDA 2022b) to preliminarily verify whether any of the soil map units listed above were classified as a “hydric soil” in the Western Riverside Area. According to the list, none of the soil map units listed to occur within the project site are listed as hydric.

National Wetlands Inventory
Based on a review of the U.S. Fish and Wildlife Service’s (USFWS) National Wetlands Inventory (USFWS 2022), no riparian or wetland features mapped in th e NWI directly overlay the project site. However, o ne feature is mapped immediately northeast of the project site and connects to Aquatic Feature 1 downstream; this wetland feature falls within the riverine syst em and is described as an intermittent streambed wi th a seasonally flooded water regime (R4SBC).

Flood Zone
Based on a review of the Federal Emergency Management Agency’s (FEMA) National Flood Hazard Layer Viewer (FEMA 2022), the project site is located within Flood Insurance Rate Map (FIRM) Panel Number 06065C0770G. Specifically, the project site is located in Zone X and described as an area of minimal flood hazard (refer to Attachment C).

National Hydrography Dataset
Based on a review of the National Hydrography Datas et (NHD) Advanced Viewer (USGS 2022b), one ephemeral drainage enters the northeastern corner o f the project site and flows generally south before continuing offsite. The upstream portion of this ephemeral feature immediately northeast of the project site appears to coincide with the offsite riverine feature mapped by the NWI (refer to Attachment D).

FIELD METHODOLOGY
Michael Baker wetland delineators Tom Millington an d April Nakagawa conducted a jurisdictional delineation/field survey of the project site and an additional 50-foot buffer of survey area around the project site on April 12, 2022, using the most recent, agency approved methodology, to identify and map the extent of State and federal jurisdictional features (i.e., wetland and non-wetland WoUS, waters of the State, streambed, riparian vegetation) located within the boundaries of the project site. Based on the projec t’s location, potential State and federal wetlands were delineated in accordance with the methods and guidance provided in the Corps of Engineers Wetland Delineation Manual (Environmental Laboratory 1987), the Regional Supplement to the Corps of Engineers Wetla nd Delineation Manual: Arid West Region, Version

Sunset Crossing TTM 38443 Project 4
Delineation of State and Federal Jurisdictional Waters

2.0 (Arid West Regional Supplement; USACE 2008), and the State Wetland Definition and Procedures for Discharges of Dredged or Fill Material to Waters of the State (State Water Resources Control Board 2019).

While in the field, jurisdictional features were recorded on an aerial photograph at a scale of 1" = 120' using topographic contours and visible landmarks as guide lines. Data points were recorded in the field using a Garmin GPS Map 64 Global Positioning System (GPS) t o identify specific widths and length of jurisdictional features and the location of any ord inary high water mark (OHWM) indicators, photograph points, soil pits, and other pertinent site charact eristics. These data were then uploaded as a .shp f ile and confirmed/refined to ensure accuracy and consistency with hardcopy notes and aerial mapping completed in the field. Michael Baker then used ESRI ArcGIS P ro software to calculate the total acreage of jurisdictional features and prepare final project figures.

RESULTS
Non-Wetland Features
Two ephemeral drainage features, Aquatic Feature 1 (AF-1) and Aquatic Feature 2 (AF-2), were identified within the project site and survey area during the April 12, 2022 site visit (refer to Attachment E, Site Photographs ).

Aquatic Feature 1
AF-1 collects/transports municipal stormwater from the adjacent residential development and surrounding foothills north of the project site, undergrounds b eneath Cottonwood Avenue, and discharges into the northeastern corner of the project site and survey area via a corrugated concrete pipe culvert with concrete wingwalls. The offsite upstream portion of AF-1 app ears to be the feature that has been mapped by both NWI and NHD. Flows drain south into a riprap-lined flood control channel which is confined by residential development on both banks. Approximately 360 linear feet downstream, AF-1 begins to transition from the riprap-lined flood control channel to an incised ea rthen channel. A small culvert with concrete wingwa lls is located on the eastern bank in this transitional area. At the time of the site visit, the culvert was obstructed by sediment resulting in a small erosional rill. A minimal amount of saturated soil and surface water were noted in the immediate location of the obstructed c ulvert and rill on the eastern bank, but not within the main channel bed or the surrounding banks. No other standing or flowing water was observed in association with AF-1.

AF-1 continues south for approximately 180 linear feet and then begins to meander southwest towards the southern project boundary where it is no longer con strained by residential development on either bank. A large concrete retaining wall is located along the southern project site boundary and flows appear to be conveyed beneath this retaining wall, likely via a pipe or culvert; however, a significant amount of sediment deposition has occurred in the immediate vicinity o f the retaining wall which reduces visibility.

Additionally, a large debris-filled non-jurisdictional erosional rill occurs immediately northwest of where AF-1 flows beneath the retaining wall and exits the project site and survey area. AF-1 exhibited clear

Sunset Crossing TTM 38443 Project 5
Delineation of State and Federal Jurisdictional Waters
evidence of hydrology and an OHWM ranging from 2 to 25 feet in width was observed via the following indicators: via a natural line impressed on the bank, change in particle size distribution, presence of a wrack line, and shelving.

The riprap-lined and soft-bottomed portions of AF-1 exhibited similar vegetation comprised of upland disturbance-tolerant non-native plant species consi stent with the surrounding uplands; however, these species generally occurred in sparser patches withi n AF-1. Dominant species included foxtail barley (Hordeum murinum , FACU), foxtail brome ( Bromus rubens , UPL), red stemmed filaree ( Erodium cicutarium , UPL), ripgut brome ( Bromus diandrus, UPL), sagebrush combseed ( Pectocarya linearis , UPL), stinknet ( Oncosiphon piluliferum , FACU), and summer mustard ( Hirschfeldia incana , UPL). Additionally, a small amount of hydrophytic vegetation comprised of tall flatsedge ( Cyperus eragrostis , FACW) and willowherb ( Epilobium ciliatum , FACW) was observed in association with the obstru cted culvert on the eastern bank. Within the project site and survey area, AF-1 measures a total of approximately 1,444 linear feet.

Aquatic Feature 2
AF-2 originates offsite as an ephemeral drainage which drains stormwater and other surface flows from the surrounding residential developments and foothills north of the project site; flows are conveyed south via a corrugated metal pipe underneath Cottonwood Avenue and enter the northwestern portion of the project site and survey area via a corrugated metal pipe wi th broken concrete wingwalls. AF-2 flows south for approximately 611 linear feet as an unmaintained ep hemeral earthen drainage before transitioning to discontinuous unconfined/overland sheet flow which ultimately fans out and infiltrates on the northwestern potion of the project site. No standing or flowing surface water was observed within the AF-2 during t he field survey. However, evidence of an OHWM ranging from 5 to 10 feet in width was observed via a natural line impressed on the bank, change in particle size distribution, presence of a wrack line, and shelving.

AF-2 exhibited the same upland vegetation as AF-1 w ith a predominance of ripgut brome and summer mustard and occasional patches of bare sandy soil. A patch of Peruvian pepper trees (Schinus molle, FACU) occurs in the northern portion of AF-2 in associati on with the residential development immediately to the west. Additionally, a small patch of mature mulefat ( Baccharis salicifolia , FAC) occurs approximately 230 feet downstream of where AF-2 enters the project site and survey area.

Wetland Features
In order to confirm the presence/absence of wetland s within the project site and survey area, two soil pits (SP1 and SP2) were dug in areas where wetland hydro logy or hydrophytic vegetation was observed. SP1 was located near the obstructed culvert in an area where urban runoff and stormwater from surrounding residential development collects/infiltrates within the project site. Plant species in this location i ncluded a mixture of the upland disturbance-tolerant non-nati ve plant species and native hydrophytic vegetation including foxtail brome (UPL), ripgut brome (UPL), tree tobacco ( Nicotiana glauca , FAC), stinknet (FACU), summer mustard (UPL), tall flatsedge (FACW), and willowherb (FACW). SP1 was excavated to a depth of approximately 24 inches. Soils exhibited a sandy texture and displayed a matrix color of 10YR

Sunset Crossing TTM 38443 Project 6
Delineation of State and Federal Jurisdictional Waters
3/3 when moist. No redoximorphic features were obs erved. Due to the absence of hydric soils, it was determined that SP1 met two (hydrophytic vegetation and wetland hydrology) of the three required parameters, and thus did not qualify as a wetland ( refer to Attachment F, Wetland Determination Data Forms ).

SP2 was located within the AF-2 due to the presence of mulefat (FAC) and secondary hydrology indicators (i.e., sediment deposits and drift deposits). SP2 was excavated to a depth of approximately 16 inches. Soils exhibited a sandy texture and displayed a matrix color of 7.5YR 4/4 when moist with no redoximorphic features observed.

Additionally, SP2 did not pass the Dominance Test or the FAC-Neutral Test for hydrophytic vegetation. Due to the absence hydrophytic vegetation and hydric soils, it was determined that SP2 only met one (hydrology) of the three required parameters, and thus did not qualify as a wetland (refer to Attachment F, Wetland Determination Data Forms ).

FINDINGS
AF-1 occurs within the eastern portion of the proje ct site and survey area and does not exhibit a surf ace hydrologic connection to any Relatively Permanent W ater (RPW) or Traditionally Navigable Water (TNW). Flows from AF-1 continue south offsite and drain into a roadside ditch which runs easterly along the northern side of Alessandro Boulevard before emptying into a small concrete culvert. Flows from AF- 1 are then conveyed onto the property south of Ales sandro Boulevard via a concrete culvert where AF-1 then transitions to discontinuous unconfined/overland sheet flow which ultimately fans out and infiltr ates offsite. Furthermore, AF-1 appears to be an ephemer al feature which flows only in direct response to precipitation. Therefore, AF-1 would not qualify as a WoUS and would not fall under the regulatory authority of the USACE. However, based on the resul ts of the field delineation, AF-1 does comprise approximately 0.27 acre (1,444 linear feet) of RWQCB non-wetland waters of the State/CDFW vegetated streambed (consisting of 0.27 acre located within the project site and an additional <0.01 acre located within the survey area). Refer to Table 1 below and Figure 4, Regional Board/CDFW Jurisdictional Map provided in Attachment A).

AF-2 occurs within the northwestern portion of the project site and survey area and also does not exhibit a surface hydrologic connection to any RPW or TNW. Fl ows from AF-2 transition to discontinuous unconfined/overland sheet flow which ultimately fans out and infiltrates within the western portion of the project site. Furthermore, AF-2 appears to be an ep hemeral feature which flows only in direct response to precipitation. Therefore, AF-2 would not qualify as a WoUS and would not fall under the regulatory authority of the USACE. However, based on the results of the field delineation, AF-2 does comprise a total of 0.10 acre (611 linear feet) of RWQCB non-wetland waters of the State/CDFW vegetated streambed (consisting of <0.001 acre located within the proje ct site and an additional 0.10 acre located within the survey area), and approximately 0.02 acre of CDFW a ssociated riparian (consisting of <0.01 acre locate d within the project site and an additional 0.02 acre located within the survey area).

Sunset Crossing TTM 38443 Project 7
Delineation of State and Federal Jurisdictional Waters
Table 1: State and Federal Jurisdictional Resources
Feature
Name
Cowardin
Class
Class of
Aquatic
Feature
Linear
Feet
Acreage within Project Site Acreage within Survey Area

RWQCB CDFW RWQCB CDFW
Non-
Wetland
WotS
Wetland
WotS Streambed Riparian
Non-
Wetland
WotS
Wetland
WotS Streambed Riparian
Aquatic
Feature
1 None Non-
Wetland 1,444 0.27 0.00 0.27 0.00 <0.01 0.00 <0.01 0.00 Aquatic
Feature
2 None Non-
Wetland 611 <0.001 0.00 <0.001 <0.01 0.10 0.00 0.10 0.02 TOTAL* 2,055 0.27 0.00 0.27 <0.01 0.10 0.00 0.10 0. 02
*Total may not equal to sum due to rounding.

CONCLUSIONS AND RECOMMENDATIONS
The USACE regulates discharge of dredged or fill material into WoUS pursuant to Section 404 of the CWA and Section 10 of the Rivers and Harbors Act. No USACE jurisdiction occurs in association with the project site, as neither AF-1 nor AF-2 exhibit any downstream surface connection (significant nexus) to a RPW or a TNW..

The RWQCB regulates discharges to surface waters pursuant to Section 401 of the CWA and Section 13263 of the California Porter-Cologne Water Quality Control Act. Based on a review of the conceptual site plan, approximately 0.37 acre of impacts to RWQCB jurisdiction (non-wetland WotS) are anticipated, comprised of 0.27 acre of permanent impacts within the projec t site, and 0.10 acre of temporary impacts within t he survey area. Therefore, it would be necessary for t he project proponent to obtain a Waste Discharge Requirement (WDR) from the RWQCB prior to impacts occurring within RWQCB jurisdictional areas.

The CDFW regulates alterations to lakes, streambeds, and riparian habitats pursuant to Section 1600 et seq . of the CFGC. Based on a review of the conceptual si te plan, a total of 0.39 acre of impacts to CDFW jurisdiction are anticipated. Anticipated impacts consist of 0.27 acre of permanent impacts and 0.10 acre of temporary impacts to vegetated streambed, and <0 .01 acre of permanent impacts and 0.02 acre of temporary impacts to associated riparian. Therefore , it would be necessary for the project proponent t o obtain a Section 1602 Streambed Alteration Agreement (SAA) from the CDFW prior to impacts occurring within CDFW jurisdictional areas.

Please do not hesitate to contact me at (949) 472-3468 or [email protected] should you have
any questions or require further information.

Sunset Crossing TTM 38443 Project 8
Delineation of State and Federal Jurisdictional Waters
Sincerely,
April Nakagawa
Regulatory Specialist
Natural Resources & Environmental Services
Attachments:

A. Project Figures
B. USFWS National Wetlands Inventory Map
C. FEMA Flood Insurance Rate Map
D. USGS National Hydrography Dataset Advanced Viewer Map E. Site Photographs
F. Wetland Determination Data Forms
G. References

Attachment A

Project Figures

RIVERSIDE COUNTY

ORANGE COUNTY

RIVERSIDE COUNTY

SAN BERNARDINO COUNTY
Regional Vicinity
Figure 1
°
0 52.5
Miles
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MORENO VALLEY SUNSET CROSSING NORTH

DELINEATION OF STATE AND FEDERAL JURISDICTIONAL WATERS
Source: ArcGIS Online, 2018
^_
Project
Site
Project Location
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Project Vicinity
Figure 2
°
0 10.5
Miles
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Project Site (23.39 acres)

MORENO VALLEY SUNSET CROSSING NORTH

DELINEATION OF STATE AND FEDERAL JURISDICTIONAL WATERS
Source: USGS 7.5-Minute topographic quadrangle maps: Perris and Sunnymead, California (2021) !>
!>

33.920278
-117.189924

33.925326
-117.184483
Project Site
Figure 3
°
0 250125
Feet
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Project Site (29.39 acres)
Survey Area (34.66 acres)
!> Reference Point

MORENO VALLEY SUNSET CROSSING NORTH

DELINEATION OF STATE AND FEDERAL JURISDICTIONAL WATERS
Source: Nearmap (01/2022)
Cottonwood Ave
!>
!>
!(
!(
"
"
""
P4
P3
P2
P1

33.920278
-117.189924

33.925326
-117.184483
Regional Board/CDFW Jurisdictional Map
Figure 4
°
0 250125
Feet
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Project Site (29.39 acres)
Survey Area (34.66 acres)
!> Reference Point
CDFW Associated Riparian
Vegetation (0.02 acre)
Regional Board Non-Wetland
Waters of the State / CDFW
Vegetated Streambed (0.37 acre)
Discontinuous OHWM
Flow Direction
" Photograph Point and Direction
!( Soil Pit

MORENO VALLEY SUNSET CROSSING NORTH

DELINEATION OF STATE AND FEDERAL JURISDICTIONAL WATERS
Source: Nearmap (01/2022)
Cottonwood Ave
SP2
AF-1
AF-2 SP1

Attachment B

USFWS National Wetlands Inventory Map

Moreno Valley 50 Project
Source: Esri, Maxar, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community
Wetlands
Estuarine and Marine Deepwater
Estuarine and Marine Wetland
Freshwater Emergent Wetland
Freshwater Forested/Shrub Wetland
Freshwater Pond
Lake
Other
Riverine
April 12, 2022
0 0.25 0.50.125 mi
0 0.4 0.80.2 km
1:15,047
This page was produced by the NWI mapper
National Wetlands Inventory (NWI)
This map is for general reference only. The US Fish and Wildlife Service is not responsible for the accuracy or currentness of the base data shown on this map. All wetlands related data should be used in accordance with the layer metadata found on the Wetlands Mapper web site.

Attachment C

FEMA Flood Insurance Rate Map

N a t io n a l F lo o d H a z a r d L a y e r F I R M e t t e 0 5 0 0 1 , 0 0 0 1 , 5 0 0 2 , 0 0 02 5 0
F e e t
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S E E F I S R E P O R T F O R D E T A I L E D L E G E N D A N D I N D E X M A P F O R F I R M P A N E L L A Y O U T

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T h i s m a p i m a g e i s v o i d i f t h e o n e o r m o r e o f t h e f o l l o w i n g m a p e l e m e n t s d o n o t a p p e a r : b a s e m a p i m a g e r y , f l o o d z o n e l a b e l s , l e g e n d , s c a l e b a r , m a p c r e a t i o n d a t e , c o m m u n i t y i d e n t i f i e r s , F I R M p a n e l n u m b e r , a n d F I R M e f f e c t i v e d a t e . M a p i m a g e s f o r u n m a p p e d a n d u n m o d e r n i z e d a r e a s c a n n o t b e u s e d f o r r e g u l a t o r y p u r p o s e s .

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O T H E R A R E A S O F

F L O O D H A Z A R D

O T H E R A R E A S

G E N E R A L

S T R U C T U R E S

O T H E R

F E A T U R E S

M A P P A N E L S
8 B
2 0 . 2
T h e p i n d i s p l a y e d o n t h e m a p i s a n a p p r o x i m a t e p o i n t s e l e c t e d b y t h e u s e r a n d d o e s n o t r e p r e s e n t a n a u t h o r i t a t i v e p r o p e r t y l o c a t i o n . 1 : 6 , 0 0 0
1 1 7 ° 1 1 '3 7 " W 3 3 ° 5 5 '3 0 " N
1 1 7 ° 1 0 '5 9 " W 3 3 ° 5 5 'N
B a s e m a p : U S G S N a t i o n a l M a p : O r t h o i m a g e r y : D a t a r e f r e s h e d O c t o b e r , 2 0 2 0

Attachment D

USGS National Hydrography Dataset Advanced Viewer Map

The National Map Advanced Viewer
USGS The National Map: National Boundaries Dataset, 3DEP Elevation Program, Geographic Names Information System, National Hydrography Dataset, National Land Cover Database, National Structures Dataset, and National Transportation Dataset; USGS Global Ecosystems; U.S. Census Bureau TIGER/Line data; Waterbody - Large Scale
Estuary
Ice Mass
Lake Pond
Playa
Reservoir
Swamp Marsh
Area - Large Scale
Area of Complex Channels
Area to be Submerged
BayInlet
Bridge
CanalDitch
DamWeir
Flume
Foreshore
Hazard Zone
Inundation Area
Lock Chamber
Rapids
SeaOcean
Special Use Zone
Spillway
StreamRiver
Submerged Stream
Wash
Water IntakeOutflow
Flowline - Large Scale
Perennial
Intermittent
Ephemeral
4/11/2022, 5:27:53 PM
0 0.15 0.30.07 mi
0 0.25 0.50.13 km
1:9,028
USGS

Attachment E

Site Photographs

**/**/**** JN
Photograph 1: View facing approximately southeast depicting AF-1 where it enters the project site.

PROJECT NAME • QUALITATIVE MONITORING
Site Photographs
Attachment E
Photograph 2: View facing approximately northwest depicting typical conditions within AF-1.

Photograph 3: View facing approximately southwest depicting AF-2. Note the small amount of Baccharis salicifolia located within the feature.

Photograph 4: View facing approximately north depicting the location where AF-2 transitions to discontinuous flow and terminates within the project site.

Attachment F

Wetland Determination Data Forms

Project/Site:

Applicant/Owner: State:

Investigator(s):

Landform (hillside, terrace, etc.): 20
Subregion (LRR):

Soil Map Unit Name: NWI classification:

X
Are Vegetation , Soil , or Hydrology Are “Normal Circumstances” present? Yes X No Are Vegetation , Soil , or Hydrology
SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.

Yes X
Yes X Yes X
Yes X

1. 2. (A)

3. 4. (B)
Sapling/Shrub Stratum
(A/B)

1. 2.

3. 4. OBL species x 1 =

5. FACW species x 2 =
FAC species x 3 =
Herb Stratum FACU species x 4 =

1. UPL species x 5 =

2. Column Totals: (A) (B)

3. 4.

5. 6. X

7. 8.

Morphological Adaptations1 (Provide supporting
Woody Vine Stratum

1. 2.
% Bare Ground in Herb Stratum Yes X
=Total Cover
No
Yes
5 (Plot size: 30 feet
FACU
)
=Total Cover
95 Hirschfeldia incana
=Total Cover
Significant drought conditions present. Cottonwood Avenue to north, vacant land that is routinely disked/maintained and dominated by various upland/non-native species to south and east, and residential development to east and west. =Total Cover
Indicator
Status
Remarks:
)
No
No
2 Number of Dominant Species That
Are OBL, FACW, or FAC:

Section 10, Township 3 South, Range 3 West
Convex
N/ARamona sandy loam, 0 to 5 percent slopes, severely eroded (RaB3) Yes No (If no, explain in Remarks.)
Sunset Crossing TTM 38443 Project Sampling Date: 04/12/22 Highpointe Communities, Inc. Sampling Point:CA SP1
City/County: Morneo Valley / Riverside
WGS84-117.187149° Datum:

Section, Township, Range:T. Millington and A. Nakagawa
Slope (%):

Long:

Are climatic / hydrologic conditions on the site typical for this time of year? 5 Problematic Hydrophytic Vegetation1 (Explain)
Hydrophytic
Vegetation
Present?
5 No
Bromus madritensis
(Plot size:
35 Hydrophytic Vegetation Present?
275
380
Dominance Test is >50%
Prevalence Index = B/A =
Cyperus eragrostis
15Bromus diandrus UPL
30 Yes

3.80No
FACW 100
FACW
UPL 55
Prevalence Index is ≤3.01
Oncosiphon piluliferum
Hydrophytic Vegetation Indicators:
5 significantly disturbed?
Dominant
Species?
No
Dominance Test worksheet:
15 feet )
Total % Cover of:

Prevalence Index worksheet:
0 No
No
No
VEGETATION – Use scientific names of plants.

Tree Stratum
Is the Sampled Area
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
data in Remarks or on a separate sheet)
N/A
within a Wetland?
Total Number of Dominant Species
Across All Strata:

Remarks:
0 Absolute
% Cover
(Plot size:

N/A
Nicotiana glauca
(Plot size:

Epilobium ciliatum
UPL
5 20
FAC
3 66.7%
5 Multiply by:
0 35
5 Percent of Dominant Species That
Are OBL, FACW, or FAC:

Hillslope with buried culvert Local relief (concave, convex, none):

U.S. Army Corps of Engineers
WETLAND DETERMINATION DATA SHEET – Arid West Region
See ERDC/EL TR-08-28; the proponent agency is CECW-CO-R OMB Control #: 0710-0024, Exp: 11/30/2024
Requirement Control Symbol EXEMPT:
(Authority: AR 335-15, paragraph 5-2a)
Plot size and shape constrained by the topography of the flood control channel, riprap sections, and partially buried concrete culvert. A small discrete patch of hydrophytic plant species was observed in the direct area of the culvert Hydric Soil Present?
Wetland Hydrology Present?
30 feet
5 feet
0 % Cover of Biotic Crust 0
LRR C Lat: 33.923374°
naturally problematic? (If needed, explain any answers in Remarks.) )
70 15
Yes
ENG FORM 6116-1, JUL 2018 Arid West – Version 2.0
Sampling Point:
% % Type1 Loc2
100
Type:

Depth (inches): Hydric Soil Present? Yes No X
Primary Indicators (minimum of one is required; check all that apply) X
X
X
Surface Water Present? Yes X
Water Table Present? Yes X
Saturation Present? Yes X Wetland Hydrology Present? Yes X No No hydric soil indiators observed. Soil would not form a ball - very gritty sand.

HYDROLOGY
Salt Crust (B11) Water Marks (B1) (Riverine)
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3:

Histic Epipedon (A2)
Black Histic (A3)
Single consistent layer with no redox
2Location: PL=Pore Lining, M=Matrix.1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains.

Remarks:

None
Depth
(inches) Color (moist)
10YR 3/3
RemarksColor (moist)
Matrix
Remarks:

Minimal amount of surface water visible underneath vegetation, but not in main flood control channel bottom or banks. Soil pit filled in with water to the top of the pit. Very small area approx 3ft x 3ft
N/A
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:

Presence of Reduced Iron (C4)
Recent Iron Reduction in Tilled Soils (C6)
Thin Muck Surface (C7)Inundation Visible on Aerial Imagery (B7) Saturation Visible on Aerial Imagery (C9)Surface Soil Cracks (B6) No
No
No
Depth (inches):

Depth (inches):

Depth (inches):
(includes capillary fringe)
Shallow Aquitard (D3)
Water-Stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Biotic Crust (B12)
Aquatic Invertebrates (B13)
Hydrogen Sulfide Odor (C1)
Oxidized Rhizospheres on Living Roots (C3)
Surface Water (A1)
High Water Table (A2)
Saturation (A3)
Wetland Hydrology Indicators:

Secondary Indicators (minimum of two required)
Sediment Deposits (B2) (Riverine)
Crayfish Burrows (C8)
Drift Deposits (B3) (Riverine)
Drainage Patterns (B10)
Dry-Season Water Table (C2)
0-24 Sandy
Hydrogen Sulfide (A4)
Stratified Layers (A5) (LRR C)
1 cm Muck (A9) (LRR D)
Depleted Below Dark Surface (A11)
Histosol (A1) Sandy Redox (S5)
Stripped Matrix (S6)
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Redox Features
SOIL SP1
Restrictive Layer (if observed):

Field Observations:
0 Texture
Sandy Gleyed Matrix (S4) 3Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic. 1 cm Muck (A9) (LRR C)
2 cm Muck (A10) (LRR B)
Iron-Manganese Masses (F12) (LRR D)
Reduced Vertic (F18)
Red Parent Material (F21)
Very Shallow Dark Surface (F22)
Other (Explain in Remarks)
Sandy Mucky Mineral (S1)
Redox Depressions (F8)
Loamy Mucky Mineral (F1)
Loamy Gleyed Matrix (F2)
Depleted Matrix (F3)
Redox Dark Surface (F6)
Depleted Dark Surface (F7)
Thick Dark Surface (A12)
0 0
Sediment Deposits (B2) (Nonriverine)
Drift Deposits (B3) (Nonriverine)
Water Marks (B1) (Nonriverine)
ENG FORM 6116-1, JUL 2018 Arid West – Version 2.0
Project/Site:

Applicant/Owner: State:

Investigator(s):

Landform (hillside, terrace, etc.): 1
Subregion (LRR):

Soil Map Unit Name: NWI classification:

Yes X
Yes X Yes X
Yes X

1. 2. (A)

3. 4. (B)
Sapling/Shrub Stratum
(A/B)

1. 2.

3. 4. OBL species x 1 =

5. FACW species x 2 =
FAC species x 3 =
Herb Stratum FACU species x 4 =

1. UPL species x 5 =

2. Column Totals: (A) (B)

3. 4.

5. 6.

7. 8.

Morphological Adaptations1 (Provide supporting
Woody Vine Stratum

1. 2.
% Bare Ground in Herb Stratum Yes X
Channel bottom Local relief (concave, convex, none):

Hydric Soil Present?
Wetland Hydrology Present?
30 feet
5 feet
0 % Cover of Biotic Crust 0
LRR C Lat: 33.924018° °
naturally problematic? (If needed, explain any answers in Remarks.) )
0 150
0 3

33.3%
0 Multiply by:
0 0
50 FAC
Percent of Dominant Species That
Are OBL, FACW, or FAC:
50 50
Absolute
% Cover
(Plot size:

Baccharis salicifolia
None
(Plot size:
within a Wetland?
Total Number of Dominant Species
Across All Strata:

Yes
Remarks:
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
data in Remarks or on a separate sheet)
None
significantly disturbed?
Dominant
Species?
No
Dominance Test worksheet:
15 feet )
Total % Cover of:

Prevalence Index worksheet:
0 No
No
No
VEGETATION – Use scientific names of plants.

Tree Stratum
Is the Sampled Area
Prevalence Index = B/A =
Bromus diandrus 5 Yes

3.46 UPL 65
UPL 15
Prevalence Index is ≤3.01
Hydrophytic Vegetation Indicators:

Are climatic / hydrologic conditions on the site typical for this time of year? 0 0
Problematic Hydrophytic Vegetation1 (Explain)
Hydrophytic
Vegetation
Present?
Hirschfeldia incana
(Plot size:
10 Hydrophytic Vegetation Present?
75 225
Dominance Test is >50%
Section 10, Township 3 South, Range 3 West
None
N/ARamona sandy loam, 0 to 5 percent slopes, severely eroded (RaB3) Yes No (If no, explain in Remarks.)
Sunset Crossing TTM 38443 Project Sampling Date: 04/12/22 Highpointe Communities, Inc. Sampling Point:CA SP2
City/County: Morneo Valley / Riverside
WGS84-117.189395° Datum:

Section, Township, Range:T. Millington and A. Nakagawa
Slope (%):

Long:
=Total Cover
Significant drought conditions present. Cottonwood Avenue to north, vacant land that is routinely disked/maintained and dominated by various upland/non-native species to south and east, and residential development to east and west. =Total Cover
Indicator
Status
Remarks:
)
No
1 Number of Dominant Species That
Are OBL, FACW, or FAC:
=Total Cover
Yes
(Plot size: 30 feet )
=Total Cover
15 ENG FORM 6116-1, JUL 2018 Arid West – Version 2.0
Sampling Point:
% % Type1 Loc2
100
Type:

Depth (inches): Hydric Soil Present? Yes No X
Primary Indicators (minimum of one is required; check all that apply) X
X
Surface Water Present? Yes X
Water Table Present? Yes X
Saturation Present? Yes X Wetland Hydrology Present? Yes X No Sandy Gleyed Matrix (S4) 3Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic. 1 cm Muck (A9) (LRR C)
2 cm Muck (A10) (LRR B)
Iron-Manganese Masses (F12) (LRR D)
Reduced Vertic (F18)
Red Parent Material (F21)
Very Shallow Dark Surface (F22)
Other (Explain in Remarks)
Sandy Mucky Mineral (S1)
Redox Depressions (F8)
Loamy Mucky Mineral (F1)
Loamy Gleyed Matrix (F2)
Depleted Matrix (F3)
Redox Dark Surface (F6)
Depleted Dark Surface (F7)
Thick Dark Surface (A12)
Sediment Deposits (B2) (Nonriverine)
Drift Deposits (B3) (Nonriverine)
Water Marks (B1) (Nonriverine)
SOIL SP2
Restrictive Layer (if observed):

Field Observations:

Texture
0 - 16 Sandy
Hydrogen Sulfide (A4)
Stratified Layers (A5) (LRR C)
1 cm Muck (A9) (LRR D)
Depleted Below Dark Surface (A11)
Histosol (A1) Sandy Redox (S5)
Stripped Matrix (S6)
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Redox Features
Shallow Aquitard (D3)
Water-Stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Biotic Crust (B12)
Aquatic Invertebrates (B13)
Hydrogen Sulfide Odor (C1)
Oxidized Rhizospheres on Living Roots (C3)
Surface Water (A1)
High Water Table (A2)
Saturation (A3)
Wetland Hydrology Indicators:

Secondary Indicators (minimum of two required)
Sediment Deposits (B2) (Riverine)
Crayfish Burrows (C8)
Drift Deposits (B3) (Riverine)
Drainage Patterns (B10)
Dry-Season Water Table (C2)
Remarks:

Location meets hydrology with secondary indicators. No flowing or ponded water; pit did not fill with water and no saturation. Dry ephemeral streambed at time of site visit.

N/A
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:

Depth (inches):

Depth (inches):
(includes capillary fringe)
Depth
(inches) Color (moist)

7.5YR 4/4
RemarksColor (moist)
Matrix
No hydric soil indicators observed. Soil would not form a ball - very gritty sand.

HYDROLOGY
Salt Crust (B11) Water Marks (B1) (Riverine)
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3:

Remarks:

ENG FORM 6116-1, JUL 2018 Arid West – Version 2.0

Attachment G

References
Attachment G – References
Sunset Crossing TTM 38443 Project G-1
Delineation of State and Federal Jurisdictional Waters
Environmental Laboratory. 1987. Corps of Engineers Wetlands Delineation Manual . Technical Report Y- 87-1. Vicksburg, MS: U.S. Army Engineer Waterways Experiment Station.

Federal Emergency Management Agency (FEMA) . 2022. National Flood Hazard Layer (NFHL) Viewer.

Flood Insurance Rate Map (FIRM) Panel Number 06065C0765G. Effective date August 28, 2008.

Accessed online at: https://msc.fema.gov/portal/home.

Google, Inc. 2022 . Google Earth Pro Imagery Version 7.3.4.8 642, build date May 12, 202 2. Historical Aerial Imagery from 1985 to 2021.

Lake Elsinore and San Jacinto Watersheds Authority. 2022. The San Jacinto River Watershed . Accessed online at https://mywatersheds.com/the-san-jacinto-river-watersheds/.

Lichvar, R.W., D.C. Finnegan, M.P. Ericsson, and W. Ochs. 2006. Distribution of Ordinary High Water Mark Indicators and their Reliability in Identifying the Limits of “Waters of the United States” in the Arid Southwestern Channels. ERDC/CRREL TR-06-5. Hanover, New Hampshire: U.S. Army Engineer Research and Development Center, Cold Regions Research and Engineering Laboratory.

Lichvar, R.W., and S.M. McColley. 2008. 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 .

ERDC/CRREL TR-08-12. Hanover, NH: U.S. Army Engineer Research and Development Center, Cold Regions Research and Engineering Laboratory.

Regional Water Quality Control Board (RWQCB). 2019. Water Quality Control Plan (Basin Plan) for the Santa Ana River Basin (Region 8) . Updated June 2019 . Available online at:
https://www.waterboards.ca.gov/santaana/water_issues/programs/basin_plan/.

State Water Resources Control Board . 2019. State Wetland Definition and Procedures for Discha rges of Dredged or Fill Material to Waters of the State . Effective May 28, 2020. Available online at:
https://www.waterboards.ca.gov/water_issues/programs/cwa401/wrapp.html.

U.S. Army Corps of Engineers ( USACE). 2008. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Arid West Region (Version 2.0). ERDC/EL TR-08-28. Vicksburg, MS: U.S.

Army Engineer Research and Development Center.

USACE. 2016. Special Public Notice: Updated Map and Drawing Standards for the South Pacific Regulatory Division Regulatory Program. Issued on February 10, 2016.

USACE. 2017. Special Public Notice: Minimum Standards for Acceptance of Aquatic Resources Delineation Reports. Issued on March 16, 2017.

Attachment G – References
Sunset Crossing TTM 38443 Project G-2
Delineation of State and Federal Jurisdictional Waters
USACE. 202 0. National Wetland Plant List, Version 3.5. U.S. Army Corps of Engineers, Engineer Research and Development Center, Cold Regions Research and Engineering Laboratory. Accessed online at: https://wetland-plants.sec.usace.army.mil/nwpl_static/v34/home/home.html.

U.S. Department of Agriculture ( USDA). 2022a . Custom Soil Resources Report for Western Riverside Area, California. Accessed online at: https://websoilsurvey.sc.egov.usda.gov/.

USDA. 2022 b. Hydric Soils List for the Western Riverside Area, California . Accessed online at :
http://www.nrcs.usda.gov/wps/portal/nrcs/main/soils/use/hydric/.

U.S. Fish and Wildlife Service ( USFWS). 2022. National Wetlands Inventory. Accessed online at:
http://www.fws.gov/wetlands/Data/Mapper.html.

U.S. Geological Survey (USGS). 2022a. Sunnymead , California 7.5 -minute Series Topographic Quadrangle Map.

USGS. 2022 b. National Hydrography Dataset Advanced Viewer . Accessed online at:
https://viewer.nationalmap.gov/advanced-viewer/.

Moreno Valley City CouncilSeptember 17, 2024

Moreno Valley City Council
September 17, 2024