Agenda packet, regular meeting, fourth session — Citrus Heights City Council Meetings, July 8, 2026 (part 2 of 5)

Grinnell & Miller 1994 Grinnell, J., and Miller, A. H. 1944. The distribution of the birds of California. Pac. Coast Avifauna 27.

Jepson 2025 Jepson Flora Project. 2025. Jepson eFlora.
https://ucjeps.berkeley.edu/eflora/ (accessed 10/31/25).

Jones & Stokes 2007 Jones & Stokes. 2007. Existing Conditions and Assessment Report and Stream Corridor Management Plan for the
Arcade Creek Watershed, Sacramento County, California.

Draft. October. (J&S 06766.06.) Sacramento, CA. Prepared for: City of Sacramento, Department of Utilities in
coordination with State Water Resources Control Board.

Lichvar & McColley
2008
Lichvar, R. W., & McColley, S. M. 2008. A field guide to the identification of the ordinary high-water mark in the arid West region of the western United States: A delineation manual (ERDC/CRREL TR-08-12). U.S. Army Engineer Research
and Development Center, Cold Regions Research and
Engineering Laboratory. Available at:
https://www.spk.usace.army.mil/Portals/12/documents/regul atory/pdf/Ordinary_High_Watermark_Manual_Aug_2008.pdf
ITEM 9
Natural Environment Study
NES 69 April 2026
Marshall 1948 Marshall, J. T., Jr. 1948. Ecologic races of Song Sparrows in the San Francisco Bay region. Part I. Habitat and
abundance. Condor 50:193-215.

Mayer & Laudenslayer
1988
Mayer, K. E., & Laudenslayer, W. F., Jr. (1988). A guide to wildlife habitats of California. California Department of Fish and Game.

NOAA 2025 National Oceanic and Atmospheric Administration (NOAA). 2025. Habitat Conservation Essential Fish Habitat View Tool for Chinook Salmon. Available at:
<https://www.habitat.noaa.gov/apps/efhmapper/> (accessed 11/5/2025).

NPS 2025 National Park Service (NPS). 2025. Western Yellow-billed Cuckoo. U.S. Department of the Interior. Available at:
https://www.nps.gov/articles/western-yellow-billedcuckoo.htm (accessed 10/7/25).

NRCS 2025 Natural Resource Conservation Service. 2025. Custom Soil Resources Report for Sacramento County, California.

Available at:
https://websoilsurvey.sc.egov.usda.gov/App/HomePage.htm (accessed 10/31/25).

PFMC 2014 Pacific Fishery Management Council. 2014. Appendix A to the Pacific Coast Salmon Fishery Management Plan.

Available at:
<https://www.pcouncil.org/documents/2019/08/salmon-efhappendix-a.pdf/> (accessed 11/5/2025).

Shuford & Gardali 2008 Shuford, W. D., and Gardali, T., editors. 2008. California Bird Species of Special Concern: A ranked assessment of
species, subspecies, and distinct populations of birds of immediate conservation concern in California.

U.S. Climate Data 2025 United States Climate Data. 2025. Sacramento, CA Weather Averages. Available at: https://www.usclimatedata.com
(accessed 10/31/25).

USFWS 1984 United States Fish and Wildlife Service. 1984. Recovery Plan for the Valley Elderberry Longhorn Beetle. Dated June 28, 1984. U.S. Fish and Wildlife Service; Portland, Oregon.

USFWS 2017 United States Fish and Wildlife Service. 2017. Framework for Assessing Impacts to the Valley Elderberry Longhorn ITEM 9
Natural Environment Study
NES 70 April 2026
Beetle (Desmocerus californicus dimorphus). U.S. Fish and Wildlife Service; Sacramento, California. 28 pp.

USFWS 2026
Zeiner et al. 1988-1990
United States Fish and Wildlife Service. 2026. Official Species List: U.S. Department of the Interior – Fish and Wildlife Service: Sacramento Fish and Wildlife Office.
(requested: 2/2/26).

Zeiner, D.C., W.F. Laudenslayer, Jr., K.E. Mayer, and M.

White, eds. 1988-1990. California's Wildlife. Vol. I-III.

California Depart. of Fish and Game, Sacramento,
California.

ITEM 9
Natural Environment Study
NES 71 April 2026
Appendix A. USFWS Species List
ITEM 9
02/02/2026 21:42:33 UTC
United States Department of the Interior

FISH AND WILDLIFE SERVICE
Sacramento Fish And Wildlife Office
Federal Building
2800 Cottage Way, Room W-2605
Sacramento, CA 95825-1846
Phone: (916) 414-6600 Fax: (916) 414-6713
In Reply Refer To:

Project Code: 2026-0044243
Project Name: Arcade-Cripple Creek Trail (Sylvan to Stock Ranch) Extension Project Subject: List of threatened and endangered species that may occur in your proposed project location or may be affected by your proposed project
To Whom It May Concern:

The enclosed species list identifies threatened, endangered, proposed and candidate species, as well as proposed and final designated critical habitat, that may occur within the boundary of your proposed project and/or may be affected by your proposed project. The species list fulfills the requirements of the U.S. Fish and Wildlife Service (Service) under section 7(c) of the Endangered Species Act (Act) of 1973, as amended (16 U.S.C. 1531 et seq.).

New information based on updated surveys, changes in the abundance and distribution of species, changed habitat conditions, or other factors could change this list. Please feel free to contact us if you need more current information or assistance regarding the potential impacts to federally proposed, listed, and candidate species and federally designated and proposed critical habitat. Please note that under 50 CFR 402.12(e) of the regulations implementing section 7 of the Act, the accuracy of this species list should be verified after 90 days. This verification can be completed formally or informally as desired. The Service recommends that verification be completed by visiting the IPaC website at regular intervals during project planning and implementation for updates to species lists and information. An updated list may be requested through the IPaC system by completing the same process used to receive the enclosed list.

The purpose of the Act is to provide a means whereby threatened and endangered species and the ecosystems upon which they depend may be conserved. Under sections 7(a)(1) and 7(a)(2) of the Act and its implementing regulations (50 CFR 402 et seq.), Federal agencies are required to utilize their authorities to carry out programs for the conservation of threatened and endangered species and to determine whether projects may affect threatened and endangered species and/or designated critical habitat.

A Biological Assessment is required for construction projects (or other undertakings having similar physical impacts) that are major Federal actions significantly affecting the quality of the human environment as defined in the National Environmental Policy Act (42 U.S.C. 4332(2) ITEM 9
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(c)). For projects other than major construction activities, the Service suggests that a biological evaluation similar to a Biological Assessment be prepared to determine whether the project may affect listed or proposed species and/or designated or proposed critical habitat. Recommended contents of a Biological Assessment are described at 50 CFR 402.12.

If a Federal agency determines, based on the Biological Assessment or biological evaluation, that listed species and/or designated critical habitat may be affected by the proposed project, the agency is required to consult with the Service pursuant to 50 CFR 402. In addition, the Service recommends that candidate species, proposed species and proposed critical habitat be addressed within the consultation. More information on the regulations and procedures for section 7 consultation, including the role of permit or license applicants, can be found in the "Endangered Species Consultation Handbook" at:
https://www.fws.gov/sites/default/files/documents/endangered-species-consultationhandbook.pdf Migratory Birds: In addition to responsibilities to protect threatened and endangered species under the Endangered Species Act (ESA), there are additional responsibilities under the Migratory Bird Treaty Act (MBTA) and the Bald and Golden Eagle Protection Act (BGEPA) to protect native birds from project-related impacts. Any activity resulting in take of migratory birds, including eagles, is prohibited unless otherwise permitted by the U.S. Fish and Wildlife Service (50 C.F.R. Sec. 10.12 and 16 U.S.C. Sec. 668(a)). For more information regarding these Acts, see https://www.fws.gov/program/migratory-bird-permit/what-we-do.

It is the responsibility of the project proponent to comply with these Acts by identifying potential impacts to migratory birds and eagles within applicable NEPA documents (when there is a federal nexus) or a Bird/Eagle Conservation Plan (when there is no federal nexus). Proponents should implement conservation measures to avoid or minimize the production of project-related stressors or minimize the exposure of birds and their resources to the project-related stressors.

For more information on avian stressors and recommended conservation measures, see https:// www.fws.gov/library/collections/threats-birds.

In addition to MBTA and BGEPA, Executive Order 13186: Responsibilities of Federal Agencies to Protect Migratory Birds, obligates all Federal agencies that engage in or authorize activities that might affect migratory birds, to minimize those effects and encourage conservation measures that will improve bird populations. Executive Order 13186 provides for the protection of both migratory birds and migratory bird habitat. For information regarding the implementation of Executive Order 13186, please visit https://www.fws.gov/partner/council-conservationmigratory-birds.

We appreciate your concern for threatened and endangered species. The Service encourages Federal agencies to include conservation of threatened and endangered species into their project planning to further the purposes of the Act. Please include the Consultation Code in the header of this letter with any request for consultation or correspondence about your project that you submit to our office.

ITEM 9
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Ƒ
Attachment(s):

Official Species List

OFFICIAL SPECIES LIST
This list is provided pursuant to Section 7 of the Endangered Species Act, and fulfills the requirement for Federal agencies to "request of the Secretary of the Interior information whether any species which is listed or proposed to be listed may be present in the area of a proposed action".

This species list is provided by:

Sacramento Fish And Wildlife Office
Federal Building
2800 Cottage Way, Room W-2605
Sacramento, CA 95825-1846
(916) 414-6600
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PROJECT SUMMARY
Project Code: 2026-0044243
Project Name: Arcade-Cripple Creek Trail (Sylvan to Stock Ranch) Extension Project Project Type: Recreation - New Construction
Project Description: The City proposes to construct a 0.5-mile addition to the planned 16-mile CCTP as part of the Arcade-Cripple Creek Trail (Sylvan to Stock Ranch) Extension Project (Project). The Project is funded through the federal Carbon Reduction Program.

The Project is located in Citrus Heights and will extend east from the existing Stock Ranch Trail behind the Costco/Walmart shopping center to Sylvan Road. The proposed alignment begins south of the Walmart property boundary and would proceed east through the Stock Ranch Nature Preserve, curving south around Walmartµs water quality detention basin. The alignment continues north, crossing a tributary of Arcade Creek, and traverses along the south side of the Huntington Square Apartment complex prior to connecting to Sylvan Road. The alignment terminates east of Sylvan Road with a planned future trail extension segment from Sylvan Road to Mariposa Avenue. The Project has independent utility and would function as a stand-alone improvement.

To accommodate construction, right-of-way (ROW) acquisitions will be required from several parcels. These include a permanent and temporary easement from the Sunrise Recreation and Park District, a temporary access easement from Walmart and/or Costco, and a temporary access easement from Huntington Square Apartments. If the existing trail easement across the Huntington Square Apartment property is insufficient to contain the construction activities, an additional temporary construction easement would be needed.

Proposed facilities include a paved trail, a new prefabricated bridge across the unnamed creek tributary , solar lighting, and an at-grade signalized pedestrian crossing at Sylvan Road. Construction activities will involve grading to achieve ADA-compliant slopes, installing the creek crossing, paving the trail, erecting the solar lighting, and adding pedestrian signal infrastructure with minor utility adjustments as needed. The Project also includes installation of a gabion basket retaining wall along an actively eroding portion of Arcade Creek to stabilize the bank and prevent further erosion.

Construction access will be provided primarily through the Walmart and/ or Costco parking lot under a temporary construction easement, with potential supplemental access from the Huntington Square Apartments parcel. These provisions will allow safe and efficient construction of the trail and its associated improvements.

Project Location:

The approximate location of the project can be viewed in Google Maps: https:// www.google.com/maps/@38.68898745,-121.294574044786,14z
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Counties: Sacramento County, California
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1. ENDANGERED SPECIES ACT SPECIES
There is a total of 6 threatened, endangered, or candidate species on this species list.

Species on this list should be considered in an effects analysis for your project and could include species that exist in another geographic area. For example, certain fish may appear on the species list because a project could affect downstream species.

IPaC does not display listed species or critical habitats under the sole jurisdiction of NOAA Fisheries , as USFWS does not have the authority to speak on behalf of NOAA and the Department of Commerce.

See the "Critical habitats" section below for those critical habitats that lie wholly or partially within your project area under this office's jurisdiction. Please contact the designated FWS office if you have questions.

NOAA Fisheries, also known as the National Marine Fisheries Service (NMFS), is an office of the National Oceanic and Atmospheric Administration within the Department of Commerce.
1 ITEM 9
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REPTILES

NAME STATUS
Northwestern Pond Turtle Actinemys marmorata
No critical habitat has been designated for this species.

Species profile: https://ecos.fws.gov/ecp/species/1111
General project design guidelines:
https://ipac.ecosphere.fws.gov/project/TZS5O3TP3BEZXFPIUZICKRUK7Q/documents/ generated/11271.pdf
Proposed
Threatened

AMPHIBIANS

NAME STATUS
Western Spadefoot Spea hammondii
Population: Northern DPS
No critical habitat has been designated for this species.

Species profile: https://ecos.fws.gov/ecp/species/5425
General project design guidelines:
https://ipac.ecosphere.fws.gov/project/TZS5O3TP3BEZXFPIUZICKRUK7Q/documents/ generated/11271.pdf
Proposed
Threatened

INSECTS

NAME STATUS
Monarch Butterfly Danaus plexippus
There is proposed critical habitat for this species. Your location does not overlap the critical habitat.

Species profile: https://ecos.fws.gov/ecp/species/9743
General project design guidelines:
https://ipac.ecosphere.fws.gov/project/TZS5O3TP3BEZXFPIUZICKRUK7Q/documents/ generated/11271.pdf
Proposed
Threatened
Valley Elderberry Longhorn Beetle Desmocerus californicus dimorphus There is final critical habitat for this species. Your location does not overlap the critical habitat.

Species profile: https://ecos.fws.gov/ecp/species/7850
Threatened

CRUSTACEANS

NAME STATUS
Vernal Pool Fairy Shrimp Branchinecta lynchi
There is final critical habitat for this species. Your location does not overlap the critical habitat.

Species profile: https://ecos.fws.gov/ecp/species/498
General project design guidelines:
https://ipac.ecosphere.fws.gov/project/TZS5O3TP3BEZXFPIUZICKRUK7Q/documents/ generated/11271.pdf
Threatened
Vernal Pool Tadpole Shrimp Lepidurus packardi
There is final critical habitat for this species. Your location does not overlap the critical habitat.

Species profile: https://ecos.fws.gov/ecp/species/2246
Endangered
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NAME STATUS
General project design guidelines:
https://ipac.ecosphere.fws.gov/project/TZS5O3TP3BEZXFPIUZICKRUK7Q/documents/ generated/11271.pdf

CRITICAL HABITATS

THERE ARE NO CRITICAL HABITATS WITHIN YOUR PROJECT AREA UNDER THIS OFFICE'S JURISDICTION.

YOU ARE STILL REQUIRED TO DETERMINE IF YOUR PROJECT(S) MAY HAVE EFFECTS ON ALL ABOVE LISTED SPECIES.

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IPAC USER CONTACT INFORMATION
Agency: Dokken Engineering
Name: Katie Jacobson
Address: 110 Blue Ravine Rd #200
City: Folsom
State: CA
Zip: 95630
Email [email protected]
Phone: 9168449581
ITEM 9
Natural Environment Study
NES 72 April 2026
Appendix B. CNDDB Species List
ITEM 9
Species Element Code Federal Status State Status Global Rank State Rank Rare Plant
Rank/CDFW
SSC or FP
Ahart's dwarf rush
Juncus leiospermus var. ahartii
PMJUN011L1 None None G2T1 S1 1B.2
Alkali Meadow
Alkali Meadow
CTT45310CA None None G3 S2.1
Alkali Seep
Alkali Seep
CTT45320CA None None G3 S2.1
American badger
Taxidea taxus
AMAJF04010 None None G5 S3 SSC
American bumble bee
Bombus pensylvanicus
IIHYM24260 None None G3G4 S2
An andrenid bee
Andrena subapasta
IIHYM35210 None None G1G2 S1S2
bank swallow
Riparia riparia
ABPAU08010 None Threatened G5 S3
big-scale balsamroot
Balsamorhiza macrolepis
PDAST11061 None None G2 S2 1B.2
Boggs Lake hedge-hyssop
Gratiola heterosepala
PDSCR0R060 None Endangered G2G3 S2 1B.2
Brandegee's clarkia
Clarkia biloba ssp. brandegeeae
PDONA05053 None None G4G5T4 S4 4.2
burrowing owl
Athene cunicularia
ABNSB10010 None Candidate
Endangered
G4 S2 SSC
California black rail
Laterallus jamaicensis coturniculus
ABNME03041 None Threatened G3T1 S2 FP
California linderiella
Linderiella occidentalis
ICBRA06010 None None G2G3 S2S3
Cooper's hawk
Astur cooperii
ABNKC12040 None None G5 S4 WL
Crotch's bumble bee
Bombus crotchii
IIHYM24480 None Candidate
Endangered
G2 S2
double-crested cormorant
Nannopterum auritum
ABNFD01020 None None G5 S4 WL
dwarf downingia
Downingia pusilla
PDCAM060C0 None None GU S2 2B.2
Elderberry Savanna
Elderberry Savanna
CTT63440CA None None G2 S2.1
Query Criteria: Quad IS (Rio Linda (3812164) OR Citrus Heights (3812163) OR Folsom (3812162) OR Sacramento East (3812154) OR Buffalo Creek (3812152) OR Carmichael (3812153) OR Rocklin (3812172) OR Roseville (3812173) OR Pleasant Grove (3812174))
Report Printed on Thursday, March 12, 2026
Commercial Version -- Dated March, 1 2026 -- Biogeographic Data Branch Page 1 of 3 Information Expires 9/1/2026
Selected Elements by Common Name
California Department of Fish and Wildlife
California Natural Diversity Database
ITEM 9
Species Element Code Federal Status State Status Global Rank State Rank Rare Plant
Rank/CDFW
SSC or FP
ferruginous hawk
Buteo regalis
ABNKC19120 None None G4 S3S4 WL
giant gartersnake
Thamnophis gigas
ARADB36150 Threatened Threatened G2 S2
golden eagle
Aquila chrysaetos
ABNKC22010 None None G5 S3 FP
grasshopper sparrow
Ammodramus savannarum
ABPBXA0020 None None G5 S3 SSC
great blue heron
Ardea herodias
ABNGA04010 None None G5 S4
great egret
Ardea alba
ABNGA04040 None None G5 S4
hairy water flea
Dumontia oregonensis
ICBRA23010 None None G1G3 S1
hispid salty bird's-beak
Chloropyron molle ssp. hispidum
PDSCR0J0D1 None None G2T1 S1 1B.1
legenere
Legenere limosa
PDCAM0C010 None None G2 S2 1B.1
merlin
Falco columbarius
ABNKD06030 None None G5 S3S4 WL
midvalley fairy shrimp
Branchinecta mesovallensis
ICBRA03150 None None G2 S2S3
Northern Claypan Vernal Pool
Northern Claypan Vernal Pool
CTT44120CA None None G1 S1.1
Northern Hardpan Vernal Pool
Northern Hardpan Vernal Pool
CTT44110CA None None G3 S3.1
Northern Volcanic Mud Flow Vernal Pool
Northern Volcanic Mud Flow Vernal Pool
CTT44132CA None None G1 S1.1
northwestern pond turtle
Actinemys marmorata
ARAAD02031 Proposed
Threatened
None G2 SNR SSC
osprey
Pandion haliaetus
ABNKC01010 None None G5 S4 WL
pallid bat
Antrozous pallidus
AMACC10010 None None G4 S3 SSC
pincushion navarretia
Navarretia myersii ssp. myersii
PDPLM0C0X1 None None G2T2 S2 1B.1
purple martin
Progne subis
ABPAU01010 None None G5 S3 SSC
Red Bluff dwarf rush
Juncus leiospermus var. leiospermus
PMJUN011L2 None None G2T2 S2 1B.1
Ricksecker's water scavenger beetle
Hydrochara rickseckeri
IICOL5V010 None None G2? S2?
Report Printed on Thursday, March 12, 2026
Commercial Version -- Dated March, 1 2026 -- Biogeographic Data Branch Page 2 of 3 Information Expires 9/1/2026
Selected Elements by Common Name
California Department of Fish and Wildlife
California Natural Diversity Database
ITEM 9
Species Element Code Federal Status State Status Global Rank State Rank Rare Plant
Rank/CDFW
SSC or FP
Sacramento Orcutt grass
Orcuttia viscida
PMPOA4G070 Endangered Endangered G1 S1 1B.1
Sanford's arrowhead
Sagittaria sanfordii
PMALI040Q0 None None G3 S3 1B.2
silver-haired bat
Lasionycteris noctivagans
AMACC02010 None None G4 S3S4
slender Orcutt grass
Orcuttia tenuis
PMPOA4G050 Threatened Endangered G2 S2 1B.1
song sparrow ("Modesto" population)
Melospiza melodia pop. 1
ABPBXA3013 None None G5T3?Q S3? SSC
spicate calycadenia
Calycadenia spicata
PDAST1P090 None None G3? S3 1B.3
steelhead - Central Valley DPS
Oncorhynchus mykiss irideus pop. 11
AFCHA0209K Threatened None G5T2Q S2 SSC
stinkbells
Fritillaria agrestis
PMLIL0V010 None None G3 S3 4.2
Swainson's hawk
Buteo swainsoni
ABNKC19070 None Threatened G5 S4
tricolored blackbird
Agelaius tricolor
ABPBXB0020 None Threatened G3 S2 SSC
valley elderberry longhorn beetle
Desmocerus californicus dimorphus
IICOL48011 Threatened None G3T3 S3
Valley Needlegrass Grassland
Valley Needlegrass Grassland
CTT42110CA None None G3 S3.1
vernal pool fairy shrimp
Branchinecta lynchi
ICBRA03030 Threatened None G3 S3
vernal pool tadpole shrimp
Lepidurus packardi
ICBRA10010 Endangered None G3 S3
western ridged mussel
Gonidea angulata
IMBIV19010 None None G3 S2
western spadefoot
Spea hammondii
AAABF02020 Proposed
Threatened
None G2G3 S3S4 SSC
western yellow-billed cuckoo
Coccyzus americanus occidentalis
ABNRB02022 Threatened Endangered G5T2T3 S1
white-tailed kite
Elanus leucurus
ABNKC06010 None None G5 S3S4 FP
Record Count: 57
Report Printed on Thursday, March 12, 2026
Commercial Version -- Dated March, 1 2026 -- Biogeographic Data Branch Page 3 of 3 Information Expires 9/1/2026
Selected Elements by Common Name
California Department of Fish and Wildlife
California Natural Diversity Database
ITEM 9
Natural Environment Study
NES 73 April 2026
Appendix C. CNPS Species List

ITEM 9
Search Results
13 matches found. Click on scientific name for details
Search Criteria: , CRPR is one of [1A:1B:2A:2B:3], Quad is one of [3812164:3812163:3812162:3812172:3812173:3812174:3812154:3812153:3812152] ▲
COMMON
NAME

SCIENTIFIC

NAME FAMILY LIFEFORM

BLOOMING
PERIOD
FED
LIST
STATE
LIST
GLOBAL
RANK
STATE
RANK
CA
RARE
PLANT
RANK
CA

ENDEMIC
DATE

ADDED PHOTO
Ahart's
dwarf rush
Juncus
leiospermus var.
ahartii
Juncaceae annual herb Mar-May None None G2T1 S1 1B.2 Yes 1984- 01-01
© 2004
Carol W.

Witham
big-scale
balsamroot
Balsamorhiza
macrolepis
Asteraceae perennial herb Mar-Jun None None G2 S2 1B.2 Yes 1974- 01-01
©1998
Dean Wm.

Taylor
Boggs Lake
hedgehyssop
Gratiola
heterosepala
Plantaginaceae annual herb Apr-Aug None CE G2G3 S2 1B.2 1974- 01-01
©2004
Carol W.

Witham
dwarf
downingia
Downingia
pusilla
Campanulaceae annual herb Mar-May None None GU S2 2B.2 1980- 01-01
© 2013
Aaron
Arthur
hispid salty
bird's-beak
Chloropyron
molle ssp.
hispidum
Orobanchaceae annual herb
(hemiparasitic)
Jun-Sep None None G2T1 S1 1B.1 Yes 1974-
01-01 No Photo
Available
CNPS Rare Plant Inventory
3/12/26, 1:32 PM CNPS Rare Plant Inventory | Search Results https://rareplants.cnps.org/Search/result?frm=T&crpr=1A:1B:2A:2B:3&sl=1&quad=3812164:3812163:3812162:3812172:3812173:3812174:3812154:3… 1/3 ITEM 9
legenere Legenere limosa Campanulaceae annual herb Apr-Jun None None G2 S2 1B.1 Yes 1974- 01-01
© 2025
Adam
Searcy
pincushion
navarretia
Navarretia
myersii ssp.
myersii
Polemoniaceae annual herb Apr-May None None G2T2 S2 1B.1 Yes 1994- 01-01
© 2020
Leigh
Johnson
Red Bluff
dwarf rush
Juncus
leiospermus var.
leiospermus
Juncaceae annual herb Mar-Jun None None G2T2 S2 1B.1 Yes 1974- 01-01
©2016
Dylan
Neubauer
Sacramento
Orcutt
grass
Orcuttia viscida Poaceae annual herb AprJul(Sep)FE CE G1 S1 1B.1 Yes 1974- 01-01
© Rick York
and CNPS
Sanford's
arrowhead
Sagittaria
sanfordii
Alismataceae perennial
rhizomatous
herb
(emergent)
MayOct(Nov)None None G3 S3 1B.2 Yes 1984-
01-01
©2013
Debra L.

Cook
slender
Orcutt
grass
Orcuttia tenuis Poaceae annual herb MaySep(Oct)FT CE G2 S2 1B.1 Yes 1974- 01-01
© 2013
Justy
Leppert
spicate
calycadenia
Calycadenia
spicata
Asteraceae annual herb May-Sep None None G3? S3 1B.3 2023- 04-05
© 2023
Christopher
Bronny
3/12/26, 1:32 PM CNPS Rare Plant Inventory | Search Results https://rareplants.cnps.org/Search/result?frm=T&crpr=1A:1B:2A:2B:3&sl=1&quad=3812164:3812163:3812162:3812172:3812173:3812174:3812154:3… 2/3 ITEM 9
}
Suisun
Marsh aster
Symphyotrichum
lentum
Asteraceae perennial
rhizomatous
herb
(Apr)MayNovNone None G2 S2 1B.2 Yes 1974-
01-01 No Photo
Available
Showing 1 to 13 of 13 entries
Go to top
Suggested Citation:

California Native Plant Society, Rare Plant Program. 2026. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 12 March 2026].
3/12/26, 1:32 PM CNPS Rare Plant Inventory | Search Results https://rareplants.cnps.org/Search/result?frm=T&crpr=1A:1B:2A:2B:3&sl=1&quad=3812164:3812163:3812162:3812172:3812173:3812174:3812154:3… 3/3 ITEM 9
Natural Environment Study
NES 74 April 2026
Appendix D. NMFS Species List
ITEM 9
From: Katie Jacobson
To: [email protected]
Subject: Arcade Creek Trail Project NMFS List
Date: Thursday, March 12, 2026 1:19:00 PM
Attachments: image001.png
Quad Name Citrus Heights
Quad Number 38121-F3
ESA Anadromous Fish
SONCC Coho ESU (T) -
CCC Coho ESU (E) -
CC Chinook Salmon ESU (T) -
CVSR Chinook Salmon ESU (T) - X
SRWR Chinook Salmon ESU (E) - X
NC Steelhead DPS (T) -
CCC Steelhead DPS (T) -
SCCC Steelhead DPS (T) -
SC Steelhead DPS (E) -
CCV Steelhead DPS (T) - X
Eulachon (T) -
sDPS Green Sturgeon (T) -
ESA Anadromous Fish Critical Habitat
SONCC Coho Critical Habitat -
CCC Coho Critical Habitat -
CC Chinook Salmon Critical Habitat -
CVSR Chinook Salmon Critical Habitat -
SRWR Chinook Salmon Critical Habitat -
NC Steelhead Critical Habitat -
CCC Steelhead Critical Habitat -
SCCC Steelhead Critical Habitat -
SC Steelhead Critical Habitat -
CCV Steelhead Critical Habitat - X
Eulachon Critical Habitat -
sDPS Green Sturgeon Critical Habitat -
ESA Marine Invertebrates
Range Black Abalone (E) -
Range White Abalone (E) -
ESA Marine Invertebrates Critical Habitat
Black Abalone Critical Habitat -
ESA Sea Turtles
ITEM 9
East Pacific Green Sea Turtle (T) -
Olive Ridley Sea Turtle (T/E) -
Leatherback Sea Turtle (E) -
North Pacific Loggerhead Sea Turtle (E) -
ESA Whales
Blue Whale (E) -
Fin Whale (E) -
Humpback Whale (E) -
Southern Resident Killer Whale (E) -
North Pacific Right Whale (E) -
Sei Whale (E) -
Sperm Whale (E) -
ESA Pinnipeds
Guadalupe Fur Seal (T) -
Essential Fish Habitat
Coho EFH -
Chinook Salmon EFH - X
Groundfish EFH -
Coastal Pelagics EFH -
Highly Migratory Species EFH -
MMPA Species (See list at left)
ESA and MMPA Cetaceans/Pinnipeds
See list at left and consult Monica DeAngelis
[email protected]
562-980-3232
MMPA Cetaceans -
MMPA Pinnipeds -
Thank you,
Katie Jacobson
Biologist/Environmental Planner |
Dokken Engineering
Phone: 916.858.0642
Email: [email protected]
110 Blue Ravine Road, Suite 200 | Folsom, CA 95630
www.dokkenengineering.com
ITEM 9
Natural Environment Study
NES 75 April 2026
Appendix E. Reference Photographs
Photograph 1. Representative of the eastern ephemeral tributary which flows northeast within the BSA with oak woodland vegetation community upland of the channel (facing southwest, October 17, 2025).

Photograph 2. Representative of the western ephemeral tributary which flows northwest within the BSA with oak woodland and annual grassland vegetation communities upland of the channel (facing northwest, October 17, 2025).

ITEM 9
Natural Environment Study
NES 76 April 2026
Photograph 1. Representative of the western water quality/detention basin, south of Costco. No water was present at the time of the biological survey, and the vegetation within the basin appeared recently trimmed (facing south, October 17, 2025).

Photograph 2. Representative of the eastern water quality/detention basin, southeast of Walmart. Water was present and the cattails and tules appeared recently trimmed (facing southwest, October 17, 2025).

ITEM 9
Natural Environment Study
NES 77 April 2026
Photograph 3. Representative of the northern portion of the eastern water quality/detention basin. This area is dominated by willows and cottonwood trees (facing southwest, October 17, 2025).

Photograph 4. Representative of the existing informal dirt trail that runs through the oak woodland vegetation community within the BSA (facing east, October 17, 2025).

ITEM 9
Natural Environment Study
NES 78 April 2026
Photograph 5. Representative of Arcade Creek within the BSA, water was present but not flowing at the time of the survey. Also shows potentially suitable basking habitat for NWPT (facing east, October 17, 2025).

Photograph 6. Representative of Arcade Creek as it passes beneath the pedestrian bridge in the western portion of the BSA. There is existing RSP along the creek at this location (facing south, October 17, 2025).

ITEM 9
Natural Environment Study
NES 79 April 2026
Photograph 7. Representative of the riparian woodland vegetation community along Arcade Creek within the BSA (facing northwest, October 17, 2025).

Photograph 8. Representative of one of the elderberry shrub clusters observed within the riparian woodland vegetation community within the BSA (facing west, October 17, 2025).

ITEM 9
Natural Environment Study
NES 80 April 2026
Photograph 9. Representative of one of the elderberry shrub clusters observed within the riparian woodland vegetation community within the BSA (facing northwest, October 17, 2025).

Photograph 10. Representative of an exit hole found on the above elderberry shrub cluster observed within the riparian woodland vegetation community (facing northwest, October 17, 2025).

ITEM 9
Natural Environment Study
NES 81 April 2026
Photograph 11. Representative of the urban areas within the BSA, showing the apartment complex in the northeastern portion of the BSA as well as landscaped grass and planted trees (facing west, October 17, 2025).

Photograph 12. Representative of the urban areas within the BSA, showing the back parking lot of Walmart (facing east, October 17, 2025).

ITEM 9
Natural Environment Study
NES 82 April 2026
Photograph 13. Representative of the urban areas within the BSA, showing Sylvan Road (facing southwest, October 17, 2025).

Photograph 14. Representative of Arcade Creek and its riparian woodland vegetation community (facing southeast, October 17, 2025).

ITEM 9
Natural Environment Study
NES 83 April 2026
Appendix F. OHWM Datasheet

ITEM 9
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Natural Environment Study
NES 84 April 2026
Appendix G. CDFW Region 2 Fisheries Biologist Coordination ITEM 9
From: Burson, Skyler@Wildlife
To: Katie Jacobson
Cc: Dorienne Mendoza; Hanna Nottnagel; Tran, Harvey@Wildlife Subject: RE: Fish Inquiry Sacramento County - Arcade Creek EFH/Presence of Anadromous Fish Date: Friday, January 23, 2026 3:06:15 PM
Attachments: image002.png
image003.png
You don't often get email from [email protected]. Learn why this is important CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe.

Thank you for looping me into this string Harvey.

Hi Katie,
The potential for listed fish species to occur in this section of Arcade/Cripple Creeks is very low. I’ve received unverified reports of steelhead (likely hatchery fish) in the lower portions of Arcade Creek as recent as last November following a large flow event. Regarding non-listed salmonid presence, this past November an unknown number of adult fall-run Chinook salmon did enter Cripple Creek (this is the first time many long-term residents of the creek had seen salmon before). In early December 2025, I rescued one adult and collected a head from one adipose fin-clipped carcass, after extracting the CWT it was determined that specific fish was a 2-year old from Coleman National Fish Hatchery.

I do agree with your assessment of this particular system below. Cripple Creek specifcally is a dead-end for any straying salmonids attempting to spawn there.

Given the small chance fish were able to spawn successfully in the limited to no availabe habitat, any juveniles would not survive the spring conditions on their way out to the Sacramento River.

I hope this information helps and please feel free to reach out to me directly if you would like to discuss further.

Thank you,
Skyler Burson
Environmental Scientist – District Biologist
North Central Region (Region 2) – Anadromous Fisheries
1701 Nimbus Road, Rancho Cordova, CA 95670
[email protected] | Phone: 1-916-906-2289
From: Tran, Harvey@Wildlife <[email protected]> Sent: Friday, January 23, 2026 1:22 PM
ITEM 9
To: Katie Jacobson <[email protected]>
Cc: Dorienne Mendoza <[email protected]>; Hanna Nottnagel <[email protected]>; Burson, Skyler@Wildlife <[email protected]> Subject: RE: Fish Inquiry Sacramento County - Arcade Creek EFH/Presence of Anadromous Fish Hi Katie,
Thank you for reaching out. Skyler is the District Fisheries Biologist for the area, so he will be able to help you out with your question. I have CCed him on this email and he will reach out to you as his convenience.

Thanks,
Harvey Tran
Senior Environmental Scientist (Specialist)
California Department of Fish and Wildlife
Region 2 - North Central Region
1701 Nimbus Road, Rancho Cordova, CA 95670
Habitat Conservation Program
(916) 358-4035
[email protected]
From: Katie Jacobson <[email protected]>
Sent: Friday, January 23, 2026 12:34 PM
To: Tran, Harvey@Wildlife <[email protected]> Cc: Dorienne Mendoza <[email protected]>; Hanna Nottnagel <[email protected]>; Wildlife Fisheries <[email protected]> Subject: RE: Fish Inquiry Sacramento County - Arcade Creek EFH/Presence of Anadromous Fish WARNING: This message is from an external source. Verify the sender and exercise caution when clicking links or opening attachments.

Hey Harvey,
I hope you are doing well.

Dokken Engineering is working with the City of Cirtus Heights on the Arcade–Cripple Creek Trail (Sylvan Road to Stock Ranch Road) Extension Project. We are currently in the environmental approval phase of the project, and we are reaching out to better understand the potential for listed anadromous fish species, such as Central Valley spring-run Chinook salmon ESU and California Central Valley steelhead DPS to occur in this section of Arcade Creek (see attached google earth pin).

Based on our research, including review of the City of Sacramento's Existing Conditions ITEM 9
and Assessment Report and Stream Corridor Management Plan for the Arcade Creek Watershed, CNDDB occurrences, and habitat assessments of the site, it is our understanding that Chinook salmon and steelhead trout have not been reported in Arcade Creek for over 20 years. However, we wanted to connect with local CDFW fisheries biologists to confirm this determination and/or inquire about any more recent data that may be available.

This portion of Arcade Creek is also identified as Essential Fish Habitat (EFH) for Chinook salmon, although it lacks key features such as complex channels, spawning habitat, thermal refugia, etc. However, our overall conclusion regarding potential for occurrence for these species will help determine if any consultations will be required for the project.

Would you be able to direct us to the appropriate local fisheries biologist, or advise on the best point of contact to address this question?
Please let me know if you have questions or need more information.

Thank you for your time and assistance,
Katie Jacobson
Biologist/Environmental Planner |
Dokken Engineering
Phone: 916.858.0642
Email: [email protected]
110 Blue Ravine Road, Suite 200 | Folsom, CA 95630
www.dokkenengineering.com
From: MacLeod, Ian@Wildlife <[email protected]> Sent: Friday, January 23, 2026 11:23 AM
To: Katie Jacobson <[email protected]>; Tran, Harvey@Wildlife <[email protected]>
Cc: Dorienne Mendoza <[email protected]>; Hanna Nottnagel <[email protected]>; Wildlife Fisheries <[email protected]> Subject: RE: Fish Inquiry Sacramento County - Arcade Creek EFH/Presence of Anadromous Fish CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe.

Hi Katie,
thank you for your inquiry. I'm including Harvey Tran in this email. He is the CDFW staff ITEM 9
Some people who received this message don't often get email from [email protected]. Learn why this is important
person who handles permitting for Sacramento County. My work is focused almost exclusively on Butte County but Harvey should be able to assist you.

Regards,
Ian MacLeod, Senior Environmental Scientist
California Department of Fish and Wildlife, Region 2
From: Katie Jacobson <[email protected]>
Sent: Thursday, January 22, 2026 2:35 PM
To: MacLeod, Ian@Wildlife <[email protected]> Cc: Dorienne Mendoza <[email protected]>; Hanna Nottnagel <[email protected]>; Wildlife Fisheries <[email protected]> Subject: Fish Inquiry Sacramento County - Arcade Creek EFH/Presence of Anadromous Fish WARNING: This message is from an external source. Verify the sender and exercise caution when clicking links or opening attachments.

Hi Ian,
My name is Katie Jacobson, and I am a biologist working with the City of Citrus Heights on the Arcade–Cripple Creek Trail (Sylvan Road to Stock Ranch Road) Extension Project.

We are currently in the environmental approval phase of the project, and we are reaching out to better understand the potential for listed anadromous fish species, such as Central Valley spring-run Chinook salmon ESU and California Central Valley steelhead DPS to occur in this section of Arcade Creek (see attached google earth pin).

Based on our research, including review of the City of Sacramento's Existing Conditions and Assessment Report and Stream Corridor Management Plan for the Arcade Creek Watershed, CNDDB occurrences, and habitat assessments of the site, it is our understanding that Chinook salmon and steelhead trout have not been reported in Arcade Creek for over 20 years. However, we wanted to connect with local CDFW fisheries biologists to confirm this determination and/or inquire about any more recent data that may be available.

ITEM 9
Would you be able to direct us to the appropriate local fisheries biologist, or advise on the best point of contact to address this question?
For reference, I have attached a Google Earth point showing the project reach of Arcade Creek, which extends from the pedestrian bridge to the east side of Sylvan Road.

Thank you for your time and assistance.

Best regards,
Katie Jacobson
Biologist/Environmental Planner |
Dokken Engineering
Phone: 916.858.0642
Email: [email protected]
110 Blue Ravine Road, Suite 200 | Folsom, CA 95630
www.dokkenengineering.com
ITEM 9

DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT APPENDIX D: Native American Consultation

ITEM 9
Native American Consultation Log

ARCADE-CRIPPLE CREEK TRAIL (SYLVAN TO STOCK RANCH) EXTENSION PROJECT Affiliation Name Contact
Date
Contact Type Response/Information
Native American
Heritage
Commission
Pricilla Torres-Fuentes,
Cultural Resource
Analyst

10.24.2025 Email Requested a Sacred Lands File (SLF) search and a list of contacts to consult with for the Project area.

10.27.2025 Email
Pricilla Torres-Fuentes, NAHC Cultural Resource Analyst, responded to the inquiry and indicated that the SLF was negative. A list of Native American individuals or groups in the area was also provided.

Buena Vista
Rancheria of MeWuk Indians Rhonda Morningstar, Chairperson 01.07.2026 Mail Joint AB52 and Section 106 Project Notification Letter mailed. 03.03.2026 Email Follow-up sent.

Colfax-Todds Valley
Consolidated Tribe
Clyde Prout,
Chairperson, Pamela
Cubbler, Vice
Chairperson, and
Preservation Cultural
Department

01.07.2026 Mail Joint AB52 and Section 106 Project Notification Letter mailed.

03.03.2026 Email Follow-up sent.

Ione Band of Miwok
Indians
Sara D. Setshwaelo,
Chairperson

01.07.2026 Mail Joint AB52 and Section 106 Project Notification Letter mailed.

03.03.2026 Email Follow-up sent.

Nashville Enterprise
Miwok-MaiduNishinam Tribe Cosme A. Valdez, Chairperson 01.07.2026 Mail Joint AB52 and Section 106 Project Notification Letter mailed. 03.03.2026 Email Follow-up sent.

Shingle Springs
Band of Miwok
Indians
Kara Perry, Director of
Site Protection and
Mariah Mayberry, Site
Protection Coordinator.

01.07.2026 Mail Joint AB52 and Section 106 Project Notification Letter mailed.

03.03.2026 Email Follow-up sent.

3.04.2026 Email
On March 4, 2026, Ms. Perry responded that consultation had been requested and a site visit was scheduled. Daniel Kehrer, City of Citrus Heights Engineer, responded on March 5, 2026 that two trail segments are in the environmental process for the City and that the current segment was different from the segment that the tribe had previously requested consultation and a site visit for. Additional correspondence clarified that the tribe could visit both trail segments during the scheduled visit. On March 12, 2026, the tribe surveyed the project site.

ITEM 9
Native American Consultation Log

ARCADE-CRIPPLE CREEK TRAIL (SYLVAN TO STOCK RANCH) EXTENSION PROJECT Affiliation Name Contact
Date
Contact Type Response/Information
TSI-AKIM Maidu of
the Taylorsville
Rancheria
Ben Cunningham,
Tribal Council Member
and Ben CunninghamSummerfield, Cultural
Advisor.

01.07.2026 Mail Joint AB52 and Section 106 Project Notification Letter mailed.

03.03.2026 Email Follow-up sent.

United Auburn
Indian Community of
the Auburn
Rancheria
Josef Fore, Tribal
Historic Preservation
Officer

01.07.2026 Online
Joint AB52 and Section 106 Project Notification Letter sent via online portal at https://www.auburnrancheria.com/programs-services/tribalpreservation/ Anna Starkey, Cultural
Regulatory Manager 01.23.2026 Email
Anna Starkey, Cultural Regulatory Manager UAIC, sent an email to Daniel Kehrer, City of Citrus Heights Principle Civil Engineer, replying to the Project Notification letter. Ms. Starkey indicated the UAIC had identified the project area as potentially culturally sensitive and would like to formally consult on the project under AB52. As part of consultation, the Tribe requested to conduct a survey for the identification of Tribal Cultural Resources (TCRs). Ms. Starkey indicated once the identification of TCRs was complete, the Tribe would provide their recommendations and mitigation measures. Mr. Kehrer replied acknowledging the receipt of the consultation request, provided additional information on access to the project area, and indicated that the City was free for meeting if the Tribe identified additional coordination was required during identification of the TCRs.

Luz Salazar, Cultural
Regulatory Coordinator

01.26.2026 &

01.27.2026 Email
On Monday, 01.26.2026, Luz Salazar, Cultural Regulatory Coordinator at UAIC, reached out via email to Mr. Kehrer to coordinate a tribal survey. Mr. Salazar indicated the Tribe would like to conduct their survey on February 3rd and asked if that day was reasonable. On Tuesday, 01.27.2026, Mr. Kehrer replied indicating that there was no issue with the proposed date of survey. Mr. Kehrer asked if the Tribe would like him to schedule the consultant archaeologist to join the Tribe on the survey. Mr. Salazar replied that the Tribe had staff archaeologists available to join him on survey, and therefore the Tribe did not require the consultant archaeologists to be present. Mr. Kehrer replied indicating his understanding and reiterating that the City was available for a meeting after the survey if needed.

ITEM 9
Native American Consultation Log

ARCADE-CRIPPLE CREEK TRAIL (SYLVAN TO STOCK RANCH) EXTENSION PROJECT Affiliation Name Contact
Date
Contact Type Response/Information
Anna Starkey, Cultural
Regulatory Manager

03.04.2026 Email
Ms. Starkey emailed Mr. Kehrer on March 4, 2026 and conveyed that the tribal survey was negative for Tribal Cultural Resources (TCR). The tribe also provided language, including background, methods and results, and mitigation measures, to be included in the CEQA TCR section and stated that consultation could be considered closed. Mr. Kehrer responded on March 9, 2026 agreeing to incorporate the tribe’s language and stated that the City could provide the opportunity for the tribe to monitor initial ground disturbance but could not offer compensation for such work.

03.10.2026 Email
Mr. Kehrer emailed Ms. Starkey to state the City is in agreement regarding the language of proposed TCR measures 2 and 3 and will incorporate into their CEQA document. Mr. Kehrer stated that compensated Tribal monitoring, as proposed in TCR measure 1, was not possible as the City considered monitoring without identified resources as consultation, which is not compensated by the City. Mr. Kehrer provided the City’s standard CEQA measures and letter explaining compensation.

03.11.2026 Email
Ms. Starkey emailed Mr. Kehrer to state that the UAIC does not consider Tribal monitoring as consultation but instead sees it as mitigation under CEQA. Ms. Starkey also stated that the City standard measures, specifically TCR measure 2, needed to be revised to acknowledge that Tribal, and not just archaeological, values should be utilized for determining TCR significance of discoveries. Ms. Starkey requested a meeting to discuss further.

03.11.2026 Email
Mr. Kehrer responded that the UAIC provided language for TCR measure 2 would be utilized in place of the City’s standard measures. Mr. Kehrer also stated that he would respond soon with meeting availability. Consultation regarding CEQA TCR measures is ongoing between the City, who is the CEQA lead agency, and the UAIC.

ITEM 9
Native American Consultation Log

ARCADE-CRIPPLE CREEK TRAIL (SYLVAN TO STOCK RANCH) EXTENSION PROJECT Affiliation Name Contact
Date
Contact Type Response/Information
Wilton Rancheria
Steven Hutchason,
Tribal Historic
Preservation Officer,
Michelle St. Clair,
Executive Director of
Cultural Preservation,
and Cultural
Preservation
Department

01.07.2026 Mail Joint AB52 and Section 106 Project Notification Letter mailed.

Michelle St. Clair,
Executive Director of
Cultural Preservation

02.03.2026 Email
Michelle St. Clair, Executive Director of Cultural Preservation, Wilton, replied to Daniel Kehrer, City of Citrus Heights Principle Civil Engineer via email and attached response letter indicating that the tribe would like to open formal consultation for the project. The attached response letter included a general overview of the United States Government to Government Consultation Process with The Tribe and included a request for any cultural resources assessments or other assessments that have been completed on all or part of the project’s area of potential effect (APE), and area surrounding the APE. Tribal requests of note include the Tribe’s request to be present at any field investigation survey conducted on the Applicant’s behalf and the request to be notified prior to any geotechnical testing. Please see entire letter further in this Appendix for full details of the Tribe’s requests. Mr. Kehrer replied indicating that the Tribe’s comments and requests were recorded and would be incorporated in the project mitigation measures. Mr. Kehrer indicated that the City would like to schedule a field survey or virtual consultation meeting and inquired about the Tribe’s preferred timing of the meeting relative to the preparation of the cultural documents. Mr. Kehrer stated that the City has time to meet in the next week or two if the Tribe was interested. Mr. Kehrer also indicated that Geotechnical testing is planned in the next couple weeks, and once the date of testing was scheduled the tribe would be notified. Koshua, Wilton Rancheria Cultural Preservation Department replied to Mr. Kehrer stating that if the cultural resource surveys had not been ITEM 9
Native American Consultation Log

ARCADE-CRIPPLE CREEK TRAIL (SYLVAN TO STOCK RANCH) EXTENSION PROJECT Affiliation Name Contact
Date
Contact Type Response/Information
completed the Tribe would like to join. The Tribe indicated that they would also like to review the cultural report once it is completed and then set up a virtual meeting. Mr. Kehrer replied that surveys had not been conducted, and looped in Amy Baker, Dokken Engineering, to help coordinate a survey time with the consultant archaeologists.

Kosha, Cultural
Preservation
Department

02.04.2026 –

02.13.2026 Email
Via several emails between the City of Citrus Heights, the consultant archaeologists, and members of the Tribe, February 23rd was chosen as the survey date. Individuals joining the survey include Michelle Campbell, consultant archaeologist, Steffanie Lui, City of Citrus Heights Planning Department, and Venesa Kremer, Wilton Rancheria. For full details of the planning related communication, please see email chain later this this Appendix.

Venesa Kremer, Wilton
Rancheria 02.23.2026 Field Survey
Michelle Campbell, consultant archaeologist, Steffanie Lui, City of Citrus Heights Planning Department, and Venesa Kremer, Wilton Rancheria conducted a survey of the project area. No concerns from the Wilton Rancheria were expressed at this time.

ITEM 9

DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT APPENDIX E: Hazardous Waste Initial Site Assessment

ITEM 9
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ITEM 9
Project No. S3208-05-01
February 26, 2026
Revised March 17, 2026
City of Citrus Heights
6360 Fountain Square Drive
Citrus Heights, California 95621
Attn: Daniel Kehrer, Principal Civil Engineer
Subject: INITIAL SITE ASSESSMENT REPORT

ARCADE CRIPPLE CREEK TRAIL - SYLVAN TO STOCK RANCH EXTENSION PROJECT

CITRUS HEIGHTS, SACRAMENTO COUNTY, CALIFORNIA
Mr. Kehrer:

In accordance with the Standard Agreement for Professional Services, executed on December 31, 2025, between Dokken Engineering (Dokken, the Client) and Geocon Consultants, Inc. (Geocon), we performed an Initial Site Assessment (ISA) of the proposed Arcade Cripple Creek Trail (ACCT) - Sylvan to Stock Ranch Extension Project (the Project Area) in Citrus Heights, California. The enclosed report describes the ISA and presents our findings, opinions, and conclusions.

We performed the ISA for Dokken on behalf of the City of Citrus Heights (the City), to assess the Project Area for the potential presence of recognized environmental conditions as defined by the American Society for Testing and Materials Designation E 1527-21, Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process.

We appreciate the opportunity to have performed this ISA for Dokken on behalf of the City of Citrus Heights. Please contact us if you have any questions concerning the report and our findings or if we may be of further service.

Sincerely,
GEOCON CONSULTANTS,INC.

Lauren Fordyce-Pitner Josh Ewert, PG
Staff Scientist Senior Geologist
Lauren Fordyce-Pitner Josh Ewert, PG
Senior Geologist
ITEM 9
Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report

TABLE OF CONTENTS

INITIAL SITE ASSESSMENT REPORT PAGE

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

1.1 Purpose and Definitions.................................................................................................. 1

1.2 Scope of Services............................................................................................................. 4

1.3 Report Limitations........................................................................................................... 5

2.0 PROJECT AREA DESCRIPTION ....................................................................................................... 6

2.1 Location and Legal Description ....................................................................................... 6

2.2 Project Area and Vicinity General Characteristics .......................................................... 6

2.2.1 Topography......................................................................................................... 6

2.2.2 Geologic Conditions............................................................................................ 6

2.2.3 Soil Conditions .................................................................................................... 7

2.2.4 Hydrologic and Hydrogeologic Conditions ......................................................... 7

2.3 Current and Planned Uses of the Project Area ............................................................... 7

2.4 Current Uses of Adjoining Properties ............................................................................. 8

3.0 RECORDS REVIEW......................................................................................................................... 9

3.1 Standard Environmental Record Sources ....................................................................... 9

3.1.1 Project Area ......................................................................................................10

3.1.2 Offsite Properties..............................................................................................10

3.2 Orphan Summary ..........................................................................................................10

3.3 Other Environmental Record Sources...........................................................................10

3.3.1 GeoTracker and EnviroStor...............................................................................10

3.3.2 California Geologic Energy Management Division ...........................................11

3.3.3 National Pipeline Mapping System...................................................................11

4.0 HISTORICAL USE .........................................................................................................................11

4.1 Aerial Photographs........................................................................................................11

4.2 Topographic Maps ........................................................................................................13

4.3 City Directories..............................................................................................................14

5.0 SITE RECONNAISSANCE ..............................................................................................................15

5.1 Methodology and Limiting Conditions..........................................................................15

5.2 Project Area Setting ......................................................................................................15

5.3 Onsite Survey ................................................................................................................15

5.4 Offsite Survey................................................................................................................16

5.5 Features, Activities, Uses, and Conditions Not Observed to Be Present......................16

6.0 FINDINGS AND CONCLUSIONS ...................................................................................................18

7.0 REFERENCES ...............................................................................................................................19

8.0 QUALIFICATIONS ........................................................................................................................20

FIGURES

1. Project Area Location Map

2. Project Area Plan
PHOTOGRAPHS (1 through 20)
ITEM 9
Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report

TABLE OF CONTENTS (CONTINUED)

APPENDICES
A. Project Plan
B. EDR Radius Map
C. EDR Historical Aerial Photographs
D. EDR Historical Topographic Maps
E. EDR City Directories
ITEM 9
Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report
Geocon Project No. S3208-05-01 - 1 - February 26, 2026
Revised March 17, 2026

INITIAL SITE ASSESSMENT REPORT

1.0 INTRODUCTION
Geocon Consultants, Inc. (Geocon) has performed an Initial Site Assessment (ISA) of the proposed Arcade Cripple Creek Trail (ACCT) - Sylvan to Stock Ranch Extension Project (the Project Area) in Citrus Heights, California. We performed the ISA for Dokken Engineering (Dokken, the Client) on behalf of the City of Citrus Heights (the City) to assess the Project Area for the potential presence of recognized environmental conditions (REC), as defined by the American Society for Testing and Materials (ASTM) Designation E 1527-21 – Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process prior to proceeding with construction of the ACCT.

This report describes the ISA methodology and presents our findings, opinions, and conclusions. The report is organized as follows:
x Section 1.0 provides a description of the purpose and objectives of the ISA, defines terms, and describes the ISA services, limitations, and identified data gaps; x Section 2.0 describes the Project Area’s physical setting and conditions; x Section 3.0 summarizes readily available records for the Project Area and surrounding properties that we obtained from regulatory and administrative agencies and other sources; x Section 4.0 describes the historical use of the Project Area and surrounding area ascertained from historical records and information sources;
x Section 5.0 describes the Project Area and surrounding properties and facilities from our observations during the Project Area reconnaissance;
x Section 6.0 presents our findings and conclusions regarding RECs and recommendations for further environmental assessment, if any;
x Section 7.0 lists the references cited in this ISA report; and x Section 8.0 provides a qualifications statement from the environmental professional responsible for the ISA and report.

1.1 Purpose and Definitions
Dokken requested this ISA to determine the potential presence of environmental concerns and contaminated properties within or in the vicinity of the Project Area that may impact construction of the proposed trail improvements. The ISA was performed in general accordance with Caltrans Initial Site Assessment Guidance Document (Geomatrix, 2006) and project-specific scoping.

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Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report
Geocon Project No. S3208-05-01 - 2 - February 26, 2026
Revised March 17, 2026
The purpose of the ISA was to identify evidence or indications of RECs, or other qualified RECs, at the Project Area as defined by the ASTM Designation E 1527-21. ASTM Designation E 1527-21 defines an REC as “(1) the presence of hazardous substances or petroleum products in, on, or at the subject property due to a release to the environment; (2) the likely presence of hazardous substances or petroleum products in, on, or at the subject property due to a release or likely release to the environment; or (3) the presence of hazardous substances or petroleum products in, on, or at the subject property under conditions that pose a material threat of a future release to the environment. A de minimis condition is not a recognized environmental condition.” De minimis conditions are further described as “a condition related to a release that generally does not present a threat to human health or the environment and generally would not be the subject of the enforcement action if brought to the attention of appropriate governmental agencies. A condition determined to be a de minimis condition is not a recognized environmental condition nor a controlled recognized environmental condition.”
"Release" refers to an unauthorized release of a petroleum product or hazardous substance to the environment - i.e., the ground surface, soil, soil vapor, groundwater, or surface water on the site. De minimis conditions are further described as “a condition related to a release that generally does not present a threat to human health or the environment and generally would not be the subject of the enforcement action if brought to the attention of appropriate governmental agencies. A condition determined to be a de minimis condition is not a recognized environmental condition nor a controlled recognized environmental condition.”
ASTM Designation E1527-21 also defines “historical” and “controlled” RECs (HREC and CREC, respectively). An HREC is defined as “a previous release of hazardous substances or petroleum products affecting the subject property that has been addressed to the satisfaction of the applicable regulatory authority or authorities and meeting unrestricted use criteria established by the applicable regulatory authority or authorities without subjecting the subject property to any controls (for example, activity and use limitations or other property use limitations).” A CREC is defined as “recognized environmental condition affecting the subject property that has been addressed to the satisfaction of the applicable regulatory authority or authorities with hazardous substances or petroleum products allowed to remain in place subject to implementation of required controls (for example, activity and use limitations or other property use limitations).” An HREC is generally not an REC if a property meets current standards for unrestricted residential use. A CREC remains an REC by definition when a property does not meet the unrestricted residential use requirement unconditionally.

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Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report
Geocon Project No. S3208-05-01 - 3 - February 26, 2026
Revised March 17, 2026
We define a “potential environmental concern” as a past use of the Project Area or adjoining or adjacent property that may have involved the use, storage, and/or release of hazardous substances or petroleum products that could have impacted the Project Area, but for which there are no records or other information to confirm that use, storage, or release. An example would be the possible application of pesticides to an agricultural field (i.e., irrigated row crop or orchard), but for which there are no records of such application or confirmation from a knowledgeable person (i.e., Project Area owner/occupant/operator) that pesticides were used.

As of July 8, 2024, the United States Environmental Protection Agency (EPA) has designated two types of per- and polyfluoroalkyl substances (PFAS) as hazardous substances under CERCLA. PFAS has been used since the 1940s for use in or manufacturing of a wide range of industrial and consumer products, including but not limited to clothing, carpets, fabrics, food packaging, cookware, and firefighting foams. Due to their persistent and versatile properties, PFAS have become so widespread that they are now commonly found in a broad array of products and environmental settings. The EPA's PFAS Enforcement and Compliance History Online (ECHO) database, one of the PFAS databases that we reviewed as part of this assessment, tracks industry sectors that potentially handle or release PFAS.

Enforcement is designed to target those entities that are significantly contributing to PFAS pollution, such as manufacturers, industrial users, and federal facilities. Given the pervasive presence of PFAS, consultants could identify PFAS-related RECs in nearly every Phase I ESA. This practice would undoubtedly raise concerns for lenders, buyers, and sellers, potentially complicating or even terminating real estate transactions. Additionally, it presents challenges for consultants in recommending, conducting, and evaluating PFAS-related assessments (i.e., Phase II ESAs) that may not be necessary or required. Therefore, for purposes of this assessment, we will rely on cited resources (such as federal, state, and local regulatory databases and records and Client-provided and site owner[s] information about site use) to evaluate whether the site and/or a nearby property has been involved in the manufacturing, use, storage, treatment, transportation, or disposal of PFAS.

The Code of Federal Regulations (CFR) Standards and Practices for All Appropriate Inquiries (AAI; CFR Title 40, Part 312) identifies ASTM Designation E 1527-21 as an acceptable guidance document for performing a Phase I ESA (and updates) that satisfies the federal requirements for AAI under Sections 101(35)(B)(ii) and (iii) of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). The purpose of AAI is to meet some of the requirements to qualify for certain landowner liability protections under CERCLA.

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Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report
Geocon Project No. S3208-05-01 - 4 - February 26, 2026
Revised March 17, 2026
The following principles are an integral part of ASTM Designation E 1527-21:
x “Uncertainty Not Eliminated - No environmental site assessment can wholly eliminate uncertainty regarding the potential for recognized environmental conditions in connection with a subject property. Performance of this practice is intended to reduce, but not eliminate, uncertainty regarding the potential for recognized environmental conditions in connection with a subject property, and this practice recognizes reasonable limits of time and cost.” x “Not Exhaustive - All Appropriate Inquiries does not mean an exhaustive assessment of a property. There is a point at which the cost of information obtained or the time required to gather it outweighs the usefulness of the information and, in fact, may be a material detriment to the orderly completion of transactions. One of the purposes of this practice is to identify a balance between the competing goals of limiting the costs and time demands inherent in performing an environmental site assessment and the reduction of uncertainty about unknown conditions resulting from additional information.”
x “Level of Inquiry is Variable - Not every property will warrant the same level of assessment.

Consistent with good commercial and customary standards and practices as defined at 42 U.S.C. § 9601(35)(B), the appropriate level of environmental site assessment will be guided by the type of property subject to assessment, the expertise and risk tolerance of the user, future intended uses of the subject property disclosed to the environmental professional, and the information developed in the course of the inquiry.”
x “Comparison with Subsequent Inquiry - It should not be concluded or assumed that an inquiry was not all appropriate inquiries merely because the inquiry did not identify recognized environmental conditions in connection with a subject property. Environmental site assessments must be evaluated based on the reasonableness of judgments made at the time and under the circumstances in which they were made. Subsequent environmental site assessments should not be considered valid standards to judge the appropriateness of any prior assessment based on hindsight, new information, use of developing technology or analytical techniques, or other factors.” x “Point in Time - The environmental site assessment is based upon conditions at the time of completion of the individual environmental site assessment elements.”

1.2 Scope of Services
Geocon’s Proposal SA-25-0350-P-GT, dated May 13, 2025 (revised May 18, 2025), describes our ISA services. We performed the scope of services outlined in the proposal. The main components of the ISA and their objectives, as specified by the referenced standards, include the following:
x Physical Setting: We reviewed various references to obtain information concerning the topographic, geologic, and hydrologic/hydrogeologic characteristics of the Project Area and vicinity. Such information may be indicative of the direction and/or extent that a contaminant could be transported in the event of a spill or release on or near the Project Area.

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Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report
Geocon Project No. S3208-05-01 - 5 - February 26, 2026
Revised March 17, 2026
x Records Review: We reviewed publicly available federal, state, and local regulatory agency records to obtain information that could potentially help identify RECs at or potentially affecting the Project Area.
x Project Area History: We reviewed historical information sources to assess previous uses of the Project Area and surrounding area and identify those that could have led to RECs on the Project Area. Those information sources included historical aerial photographs and topographic maps, and city directories.
x Project Area Reconnaissance: We performed a reconnaissance to observe Project Area uses and conditions for evidence or indications of RECs. We viewed adjoining and adjacent offsite properties and features solely from the vantage of the Project Area and public thoroughfares.

1.3 Report Limitations
We prepared this ISA report exclusively for Dokken and the City. The information obtained is only relevant for the latest of the dates of the records reviewed, the latest Project Area visit, and completion of interviews with governmental officials and/or Project Area owner(s), occupant(s), and/or operator(s) as cited in Section 1.2.

Dokken and the City should recognize that an ISA is not a comprehensive Project Area characterization and should not be construed as such. The findings and conclusions presented in this report are predicated on the Project Area reconnaissance, information in the specified regulatory records, and information regarding the historical usage of the Project Area, as presented in this report. Dokken and the City should also understand that we did not assess the Project Area for wetlands or perform testing (sample collection and analysis) for asbestos-containing building materials, lead-containing paint, lead in drinking water, radon, mercury, methane, mold, or potential naturally occurring hazards such as asbestos and arsenic as part of this ISA. The ISA did not include sample collection and laboratory analysis, nor did it include the evaluation of regulatory compliance, cultural and historical resources, industrial hygiene, health and safety, ecological resources, endangered species, air quality, or geologic hazards.

The information provided in this report is not meant to eliminate the risk involved in property transactions. No guarantee or warranty of the results of the ISA is implied within the intent of this report or any subsequent reports, correspondence, or consultation, either express or implied. We strived to conduct the services summarized herein in accordance with the local standard of care in the geographic region at the time the services were rendered.

ITEM 9
Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report
Geocon Project No. S3208-05-01 - 6 - February 26, 2026
Revised March 17, 2026

2.0 PROJECT AREA DESCRIPTION
This section describes the location and physical characteristics of the Project Area including its size, topography, and geologic, soil, hydrologic, and hydrogeologic conditions.

2.1 Location and Legal Description
The Project Area is located approximately 2,000 feet south of the intersection of Auburn Boulevard and Sylvan Road in Citrus Heights, California (Figure 1).

Within the Public Land Survey System of California, the Project Area is in the southwest quarter of Section 26, Township 10 North, Range 6 East, Mount Diablo Base and Meridian.

2.2 Project Area and Vicinity General Characteristics
The Project Area is in a suburban area surrounded by residential and commercial properties. The Project Area includes portions of the Stock Ranch Nature Preserve, Huntington Square Apartments, Sylvan Road, and Stock Ranch Commercial Center (Figure 2).

2.2.1 Topography
The topography of the Project Area is relatively flat-lying with an overall gentle downward slope toward Arcade Creek. Elevations at the Project Area range from approximately 125 feet above mean sea level (MSL) to 140 feet above MSL (USGS, 2023).

2.2.2 Geologic Conditions
We obtained geologic information regarding the Project Area from a variety of sources including:
x California Geology (Harden, 2003),
x Note 36, California Geomorphic Provinces (California Geological Survey [CGS], 2002), and x Preliminary Geologic Map of the Sacramento 30’ x 60’ Quadrangle, California (CGS, 2011).

Following are summaries of pertinent information obtained.

ITEM 9
Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report
Geocon Project No. S3208-05-01 - 7 - February 26, 2026
Revised March 17, 2026

2.2.2.1 Geomorphic Region
The Project Area is located in the Great Valley geomorphic province of California. The Great Valley is a sedimentary basin between the Sierra Nevada mountains and Cascade Range to the east and the Coast Ranges to the west. The Great Valley is filled with a thick sequence of Jurassic- to Recent-age sedimentary deposits of both continental and marine origin (CGS, 2002 and Harden, 2003).

2.2.2.2 Geologic Formations/Stratigraphy
The Project Area is underlain by the Turlock Lake Formation (Pleistocene; Map ID= Qtl) which consists of arkosic alluvium with some silt and minor gravel (CGS, 2011).

2.2.3 Soil Conditions
The United States Department of Agriculture – Natural Resources Conservation Web Soil Survey (http://websoilsurvey.nrcs.usda.gov/app/WebSoilSurvey.aspx) indicates that surficial soil at the Project Area is classified as Fiddyment-Orangevale complex which is fine sandy loam to loam to sandy clay loam weathered from alluvium derived from igneous and metamorphic rock.

2.2.4 Hydrologic and Hydrogeologic Conditions
Arcade Creek is present along the southern portion of the Project Area and flows southeast, towards Lake Natoma.

The California Department of Water Resources (DWR) Sustainable Groundwater Management Act Data Viewer website (https://sgma.water.ca.gov) shows no wells within the Project Area or vicinity.

The Data Viewer groundwater depth contour map for Spring 2025 indicates that depth to groundwater is likely between 120 and 140 feet, and that groundwater flow is to the southeast.

2.3 Current and Planned Uses of the Project Area
The Project Area is primarily used for outdoor recreation with numerous paved and unpaved trails along the Arcade Creek riparian area.

The city proposes to construct a 0.5-mile addition to the planned 16-mile Creek Corridor Trail Project ;dWͿථĂƐ ƉĂƌƚ ŽĨ ƚŚĞ ƌĐĂĚĞ-Cripple Creek Trail - Sylvan to Stock Ranch Extension Project. The Project Area will extend east from the existing Stock Ranch Trail behind the ITEM 9
Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report
Geocon Project No. S3208-05-01 - 8 - February 26, 2026
Revised March 17, 2026
Costco/Walmart shopping center to Sylvan Road. The proposed alignment begins south of the Walmart property boundary and proceeds east through the Stock Ranch Nature Preserve, curving south around Walmart’s water quality detention basin. The alignment continues north, crossing a tributary of Arcade Creek, and traverses along the south side of the Huntington Square Apartments complex prior to connecting to Sylvan Road. The alignment terminates east of Sylvan Road at the location of a planned future trail extension segment from Sylvan Road to Mariposa Avenue.

The project has independent utility and would function as a stand-ĂůŽŶĞŝŵƉƌŽǀĞŵĞŶƚ͘ථ Proposed facilities include a paved trail, a new prefabricated bridge across the unnamed creek tributary, solar lighting, bank protection along a segment of Arcade Creek, and an at-grade signalized pedestrian crossing at Sylvan Road. Construction activities will involve grading to achieve ADA-compliant slopes, installing the creek crossing, paving the trail, erecting the solar lighting, constructing bank protection, and adding pedestrian signal infrastructure with minor utility ĂĚũƵƐƚŵĞŶƚƐĂƐŶĞĞĚĞĚ͘ථ
The Project Area and proposed improvements will be constructed within portions of the following Sacramento County assessor’s parcel numbers (APNs): 211-0870-001, 211-0870-002, 211-0870-013, 211-0270-008, 211-0280-004, 211-0870-014, and 211-0850-039.

To accommodate construction, right-of-way (ROW) acquisitions will be required from several parcels.

These include a permanent easement and permit to enter (PTE) from the Sunrise Recreation & Park ŝƐƚƌŝĐƚĂŶĚĂථƚĞŵƉŽƌĂƌǇĐŽŶƐƚƌƵĐƚŝŽŶĞĂƐĞŵĞŶƚ;d
ͿථĨƌŽŵtĂůŵĂƌƚ͘ŶĞǆŝƐƚŝŶŐƚƌĂŝůĞĂƐĞŵĞŶƚĞǆŝƐƚƐ
across the Huntington Square Apartments property and there is potential for this permanent ĞĂƐĞŵĞŶƚƚŽďĞŵŽĚŝĨŝĞĚƚŽďĞƐƚŝŶĐŽƌƉŽƌĂƚĞƚŚĞƚƌĂŝůĂůŝŐŶŵĞŶƚǁŝƚŚƚŚĞƉŚǇƐŝĐĂůƐŝƚĞĨĞĂƚƵƌĞƐ͘ථථ ŽŶƐƚƌƵĐƚŝŽŶථĂĐĐĞƐƐǁŝůůďĞƉƌŽǀŝĚĞĚƉƌŝŵĂƌŝůǇƚŚƌŽƵŐŚƚŚĞtĂůŵĂƌƚƉĂƌŬŝŶŐůŽƚƵŶĚĞƌĂd ͕ĂƐǁĞůů
ĂƐĂථWd
ථĨŽƌĂĐĐĞƐƐĨƌŽŵƚŚĞ,ƵŶƚŝŶŐƚŽŶ^ƋƵĂƌĞƉĂƌƚŵĞŶƚƐƉĂƌĐĞů͘dŚĞƐĞƉƌŽǀŝƐŝŽŶƐǁŝůůĂůůŽǁƐĂĨĞ and efficient construction of the trail and its associated ŝŵƉƌŽǀĞŵĞŶƚƐ͘ථĐŽƉǇŽĨƚŚĞƉƌŽũĞĐƚƉůĂŶŝƐ in Appendix A.

2.4 Current Uses of Adjoining Properties
Stock Ranch Commercial Center, including Costco and Walmart, is located on the north adjoining property. Residential neighborhoods are present on the north, east, south, and west adjoining properties. The south adjoining property includes Stock Ranch Nature Preserve and recreational trails.

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Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report
Geocon Project No. S3208-05-01 - 9 - February 26, 2026
Revised March 17, 2026

3.0 RECORDS REVIEW
This section summarizes information we obtained from readily available agency records pertaining to the Project Area and properties and facilities in the vicinity of the Project Area.

3.1 Standard Environmental Record Sources
EDR searched federal, state, and local environmental databases for the Project Area and properties/facilities within one mile of the Project Area. The following table shows the databases that list the Project Area and/or offsite properties/facilities and the total number of listed properties/facilities for each database. Databases that list no properties/facilities within one mile of the Project Area are not included in the table. A copy of The EDR Radius Map Report with GeoCheck, (radius report) dated January 14, 2026, is in Appendix B.

Database Name Search Radius
(Miles)
Number of
Listings

FEDERAL DATABASES
Resource Conservation and Recovery Act [RCRA] – Small Quantity Generator (RCRA-SQG) 0.25 2

STATE, LOCAL, AND TRIBAL DATABASES
Department of Toxic Substances Control [DTSC] Site Mitigation and Brownfields Reuse Program (ENVIROSTOR) 1.0 2
Underground Storage Tank (UST) 0.25 1
Leaking Underground Storage Tank (LUST) 0.5 1
Sacramento County Contaminated Sites (Sacramento Co. CS) 0.5 1

ADDITIONAL ENVIRONMENTAL RECORDS
California Environmental Reporting System [CERS] for AST/UST regulatory program (CERS TANKS) 0.25 1
California Environmental Reporting System (CERS HAZ WASTE) 0.25 3 RCRA - Non-Generators/No Longer Regulated (RCRA NonGen/NLR) 0.25 8 Hazardous Waste and Substances Site List (CORTESE) 0.5 1 Historical Hazardous Waste & Substance Site List (HIST CORTESE) 0.5 1 Master Hazardous Materials Facility List (Sacramento Co. ML) 0.25 5 National Pollutant Discharge Elimination System (NPDES) TP 1 Proposition 65 Records (Notify 65) 1.0 1
California Integrated Water Quality System (CIWQS) TP 1 EPA Hazardous Waste Electronic Manifest System (E MANIFEST) 0.25 5 UST Finder Database (UST FINDER) 0.25 1
UST Finder Releases Database (UST FINDER RELEASE) 0.5 1 TP = target property
ITEM 9
Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report
Geocon Project No. S3208-05-01 - 10 - February 26, 2026 Revised March 17, 2026

3.1.1 Project Area
The Project Area is listed on two non-release-related databases1 for a construction project that was terminated in 2024. These listings do not indicate the release or storage of hazardous materials and therefore, are unlikely to have caused an REC within the Project Area.

3.1.2 Offsite Properties
Three properties within 1/8 mile of the Project Area are listed on various non-release-related databases. No properties within ¼ mile of the Project Area are listed on release-related databases, however two properties within approximately 300 feet of the Project Area are listed as hazardous waste generators (Walmart #3712) and Costco (#771). The UST Finder database indicates that four USTs are present (three 20,000-gallon tanks and one 1,500-gallon tank) at the Costco Gas Station upgradient of the Project Area. Since no releases have been reported, these two properties are unlikely to have caused an REC within the Project Area.

3.2 Orphan Summary
EDR’s Orphan Summary identifies properties and facilities that have incomplete address information and therefore could not be accurately plotted. The Orphan Summary does not list any properties or facilities.

3.3 Other Environmental Record Sources

3.3.1 GeoTracker and EnviroStor
We reviewed information available on the California State Water Resources Control Board’s (SWRCB) GeoTracker (http://geotracker.waterboards.ca.gov) and the California Department of Toxic Substances Control’s (DTSC) EnviroStor (http://www.envirostor.dtsc.ca.gov/public/) online data management systems for information regarding documented environmental assessment and cleanup at the Project Area and/or properties/facilities within 1/8 mile of the Project Area. No information pertaining to the Project Area or properties/facilities within the vicinity of the Project Area is available on GeoTracker or EnviroStor.
1 "Release" refers to an unauthorized release of a petroleum product or hazardous substance to the environment - i.e. the ground surface, soil, soil vapor, groundwater, or surface water on a property. "Releaserelated database" refers to those which provide information regarding an unauthorized release. "Non-releaserelated database" refers to those that may report use, storage, or disposal of hazardous substances and/or petroleum products or other environmental conditions, but do not report releases of such.

ITEM 9
Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report
Geocon Project No. S3208-05-01 - 11 - February 26, 2026 Revised March 17, 2026

3.3.2 California Geologic Energy Management Division
The California Geologic Energy Management Division’s (CalGEM) Well Finder, (https://maps.conservation.ca.gov/doggr/wellfinder/#openModal) an online petroleum (oil and natural gas) field and well mapping system, does not depict any oil or natural gas wells within the Project Area or its vicinity.

3.3.3 National Pipeline Mapping System
The United States Department of Transportation’s (USDOT) National Pipeline Mapping System Public Map Viewer (https://pvnpms.phmsa.dot.gov/PublicViewer/), an online pipeline mapping system, does not depict any natural gas or liquid petroleum pipelines on or within ¼ mile of the Project Area (USDOT, 2025).

4.0 HISTORICAL USE
We evaluated the historical use of the Project Area and adjoining and adjacent properties through review of historical aerial photographs, topographic maps, and city directories provided by EDR. This section summarizes information obtained from these sources.

4.1 Aerial Photographs
We reviewed historical aerial photographs for the years listed in the following table for indications of past land uses that had the potential to have impacted the Project Area through the use, storage or disposal of hazardous substances and/or petroleum. The following table summarizes our observations of the Project Area and adjacent properties on the historical aerial photographs. Copies of historical aerial photographs provided by EDR are in Appendix C.

Year
Observations
Project Area Adjoining and Adjacent Properties
1937
(1” = 500’)
The Project Area was predominantly used
for dry farming. A creek extended into the
eastern portion of the Project Area. A road
extended north to south through the
eastern portion of the Project Area.

The north and west adjoining properties were
mostly used for dry farming. A highway extended
northeast to southwest on the north adjoining
property. Rural residences, roads, and orchards
were present on the northeast, east, and south
adjoining properties. A creek extended east to
west along the south adjoining property.
1947
(1” = 500’)
Conditions depicted were similar to those
observed in the 1937 photograph.

Conditions depicted were similar to those
observed in the 1937 photograph.

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Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report
Geocon Project No. S3208-05-01 - 12 - February 26, 2026 Revised March 17, 2026
Year
Observations
Project Area Adjoining and Adjacent Properties
1952
(1” = 500’)
Conditions depicted were similar to those
observed in the 1947 photograph, except
that a trail was present throughout the
Project Area.

Conditions depicted were similar to those
observed in the 1947 photograph, except
additional rural residences were developed on
the east adjoining property.
1957
(1” = 500’)
Conditions depicted were similar to those
observed in the 1952 photograph, except
that the trail was no longer present.

Conditions depicted were similar to those
observed in the 1952 photograph, except that
the south adjoining property was dry farmed and
residential development continued on the east
adjoining property.
1964
(1” = 500’)
Conditions depicted were similar to those
observed in the 1957 photograph, except
that a drainage channel flowed north to
south through the western portion of the
Project Area.

Conditions depicted were similar to those
observed in the 1957 photograph, except that
two drainage channels extended from the
highway on the north adjoining property to the
creek on the south adjoining property.
1966, 1972,
and 1984
Conditions depicted were similar to those
observed in the 1964 photograph, except
that trails were present throughout the
Project Area.

Conditions depicted were similar to those
observed in the 1964 photograph, except that
the west adjoining property and a portion of the
north adjoining property, was developed with
residential neighborhoods.
1993
(1” = 500’)
Conditions depicted were similar to those
observed in the 1984 photograph, except
that trees appear to have been cleared
near the creek, in the southern portion of
the Project Area.

Conditions depicted were similar to those
observed in the 1984 photograph, except that
additional residential neighborhoods were built
on a portion of the north and south adjoining
properties.
1998
(1” = 500’)
Conditions depicted were similar to those
observed in the 1993 photograph, except
that additional trails were present
throughout the Project Area.

Conditions depicted were similar to those
observed in the 1993 photograph, except that
the north adjoining property appears to have
been used as a park with a network of trails
leading from the highway to the north, to the
creek and adjoining neighborhoods. A
neighborhood of residential homes was
developed on the south adjoining property.
2005
(1” = 500’)
A trail was present east to west through the
central portion of the Project Area. A
drainage channel was present in the central
portion of the Project Area, leading to a
retention pond on the southwest adjoining
property. The western portion of the Project
Area was paved to create a parking lot.

A large structure and paved parking lot were
present on the northwest adjoining property.

The south adjoining property was developed
with neighborhoods of residential homes.

Retention ponds were present on the southwest
and west adjoining properties.
2009
(1” = 500’)
The drainage channel was no longer
present in the central portion of the Project
Area. The western and northwestern
portions of the Project Area were paved
and a structure was present.

Conditions depicted were similar to those
observed on the 2005 photograph.

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Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report
Geocon Project No. S3208-05-01 - 13 - February 26, 2026 Revised March 17, 2026
Year
Observations
Project Area Adjoining and Adjacent Properties
2012, 2016,
2020, and
2024
(1” = 500’)
Conditions depicted were similar to those
observed on the 2009 photograph.

Conditions depicted were similar to those
observed on the 2009 photograph.

Dry farmed fields were present across the western portion of the Project Area from as early as 1937 until likely sometime in the 1950s. This type of crop cultivation suggests that pesticides were not likely applied and persistent pesticides and associated metals are not likely to be present in soil in this area. The DTSC’s Interim Guidance for Sampling Agricultural Properties (Third Revision) dated August 7, 2008, states that “many dry-land farming fields are not treated with pesticides or infrequently treated, since the lack of water does not provide a desirable habitat for most agricultural pests.

Properties that clearly qualify as dry-land farming do not need further investigation for pesticides or metals.” The aerial photographs do not show features or land uses that directly suggest the presence of conditions or features within the Project Area or on adjoining and adjacent properties likely to have caused an REC within the Project Area.

4.2 Topographic Maps
We reviewed historical topographic maps provided by EDR for the years listed in the following table. The following table summarizes our observations of the Project Area and adjacent properties on the historical topographic maps. Copies of the historical topographic maps provided by EDR are in Appendix D.

Year
Observations
Project Area Adjoining and Adjacent Properties
1891
(1:125,000)
A road is depicted extending north to
south through the central portion of the
Project Area.

A creek is depicted flowing northwest to
southeast on the south adjoining property
and a road is depicted extending northeast to
southwest on the north adjoining property.
1892-1893
(1:125,000)
Conditions depicted are similar to those
on the 1891 map.

Conditions depicted are similar to those on
the 1891 map.
1902
(1:62,500)
Conditions depicted are similar to those on
the 1893 map except the road that extends
north to south is now depicted in the
eastern portion of the Project Area. An
unimproved road is depicted extending
north to south through the western portion
of the Project Area. A creek is depicted
flowing throughout the Project Area.

Conditions depicted are similar to those on
the 1893 map, except that two structures
are present on the north adjoining property,
along the road that extends northeast to
southwest. Another structure is present on
the south adjoining property.

ITEM 9
Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report
Geocon Project No. S3208-05-01 - 14 - February 26, 2026 Revised March 17, 2026
Year
Observations
Project Area Adjoining and Adjacent Properties
1911
(1:31,680)
Conditions depicted are similar to those
on the 1902 map.

Conditions depicted are similar to those on
the 1902 map.
1951
(1:24,000)
Conditions depicted are similar to those
on the 1947 map except the road in the
eastern portion of the Project Area is
labeled Sylvan Road and a structure is
depicted in the eastern portion of the
Project Area.

Numerous structures are depicted on the
east and south adjoining properties. Auburn
Boulevard is labeled as the road extending
northeast to southwest on the north
adjoining property. The creek on the south
adjoining property is labeled as Arcade Creek.
1954
(1:62,500)
1967 and 1980
(1:24,000)
Conditions depicted are similar to those
on the 1951 map.

Conditions depicted are similar to those on
the 1951 map, except that structures part
of residential neighborhoods continue to
be developed on the east and west
adjoining properties.
1992
(1:24,000)
Conditions depicted are similar to those
on the 1980 map, except that the
structure in the eastern portion of the
Project Area is no longer depicted.

Conditions depicted are similar to those on
the 1980 map, except that roads are
depicted north and south of the eastern
portion of the Project Area.
2012
(1:24,000)
Conditions depicted are similar to those
on the 1992 map.

Conditions depicted are similar to those on
the 1992 map, except that additional roads
are present surrounding the Project Area.
2015, 2018,
2021, and 2023
(1:24,000)
Conditions depicted are similar to those
on the 2012 map.

Conditions depicted are similar to those on
the 2012 map.

The topographic maps do not depict features or land uses that directly suggest the presence of conditions or features within the Project Area or on adjoining and adjacent properties likely to have caused an REC within the Project Area

4.3 City Directories
EDR prepared an abstract of city directories including city, cross-reference, and telephone directory listings (Appendix E). EDR included information from directories at approximately 5-year intervals, if available, from 1963 to 2022. The city directories list commercial businesses and individual homeowners for the Project Area and adjoining and adjacent properties, none of which suggest the storage or use of large quantities of hazardous substances or petroleum products sufficient to have caused an REC within the Project Area.

ITEM 9
Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report
Geocon Project No. S3208-05-01 - 15 - February 26, 2026 Revised March 17, 2026

5.0 SITE RECONNAISSANCE
This section summarizes our observations of the Project Area and surrounding properties made during the reconnaissance.

5.1 Methodology and Limiting Conditions
Lauren Fordyce-Pitner, Staff Scientist, with Geocon, performed the Project Area reconnaissance on January 19, 2026, by walking unaccompanied throughout the Project Area and along the boundaries to observe Project Area features and conditions. She observed adjoining and adjacent properties from the Project Area and public roads. Weather on the day of the Project Area reconnaissance was sunny with temperatures in the mid-50s°F. Photographs of various Project Area features and offsite properties are appended.

5.2 Project Area Setting
The Project Area is situated in an area of residential, commercial, and recreational properties.

5.3 Onsite Survey
The Project Area includes the southern and eastern portions of the Stock Ranch Commercial Center (behind Walmart and Costco). We observed loading docks, packing materials such as pallets, paved parking areas with staining, several shipping containers with unknown contents, a locked propane storage area, machinery, and various utilities such as irrigation, electric, and stormwater (Photos 1 through 5). While hazardous materials may be present inside the shipping containers and were observed in the propane storage tank area, we observed no evidence of spills or leaks and the shipping containers were secured and located on pavement. Therefore, it is unlikely that hazardous materials would have contaminated the surrounding soil.

The southern portion of the Project Area, beyond the Stock Ranch Commercial Center, includes the Stock Ranch Nature Preserve which is comprised of various unimproved trails (i.e., gravel, mulch, dirt) and paved trails through the Arcade Creek riparian area (Photos 6 through 8). We observed picnic tables, park benches, informational signs, art installations, debris and trash, and homeless encampments along the creek (Photos 9 and 10).

ITEM 9
Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report
Geocon Project No. S3208-05-01 - 16 - February 26, 2026 Revised March 17, 2026
The Project Area crosses Arcade Creek, east of the Stock Ranch Commercial Center and adjacent to a pond (Photo 11). We were unable to cross the creek at this location, and a retaining wall and fence prevented access around the creek crossing (Photo 12). We drove to Huntington Square Apartments to access the northeastern portion of the Project Area. A paved trail was present behind the leasing office building and continued east towards Sylvan Road (Photos 13 and 14). We observed caution tape blocking off the area west of Sylvan Road where a fence was knocked over (Photo 15). The Project Area crosses Sylvan Road, north of the Arcade Creek Bridge (Photo 16). We observed no evidence of RECs within the Project Area.

5.4 Offsite Survey
Adjoining and nearby properties include residential homes, Stock Ranch Commercial Center, Stock Ranch Nature Preserve, Arcade Creek, and Sylvan Road (Photos 17 through 19). We observed no evidence of RECs on adjoining or adjacent properties.

5.5 Features, Activities, Uses, and Conditions Not Observed to Be Present ASTM Designation E1527-21 states “During the site visit, the environmental professional (or the person under the supervision or responsible charge of the environmental professional) shall look for and identify the features, activities, uses, and conditions specified in 9.4.1 through 9.4.28. Any of the specified features, activities, uses, and conditions identified in, on, or at the subject property shall be described in the report. If any of the specified features, activities, uses, or conditions are not found to be present in, on, or at the subject property, the environmental professional shall document as such in the report.” The features, activities, uses and conditions that were present during our site reconnaissance are described in Sections 6.2 through 6.4. The following are features, activities, uses and conditions that were not observed to be present during the site reconnaissance:
x Past use of site;
x Past uses of adjoining properties;
x Past uses of surrounding area;
x Geologic, hydrogeologic, hydrologic, and topographic conditions that would contribute to an REC for the site from an adjoining property;
x Sewage disposal system;
x Strong, pungent, or noxious odors;
ITEM 9
Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report
Geocon Project No. S3208-05-01 - 17 - February 26, 2026 Revised March 17, 2026
x Standing surface water and pools or sumps containing liquids likely to be hazardous substances or petroleum products;
x Drums or totes;
x Hazardous substance and petroleum product containers not in connection with identified uses; x Polychlorinated biphenyls (PCB)-containing items;
x Heating/cooling;
x Stains or corrosion on floors, walls, or ceilings;
x Sumps;
x Pits;
x Stained soil;
x Stressed vegetation;
x Wastewater;
x Wells; and
x Septic systems or cesspools.

ITEM 9
Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report
Geocon Project No. S3208-05-01 - 18 - February 26, 2026 Revised March 17, 2026

6.0 FINDINGS AND CONCLUSIONS
We have performed an ISA in general conformance with the scope and limitations of ASTM Designation E 1527-21 and Caltrans Initial Site Assessment Guidance of the proposed Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project in Citrus Heights, California. Exceptions to, or deletions from, this practice are described in Section 1.3 (limitations). The ISA has revealed no evidence of RECs, CRECs, or significant data gaps in relation to the Project Area.

Yellow thermoplastic and paint striping that is removed during planned roadway improvements may require special handling and disposal requirements, as those applied before 2005 potentially contained lead chromate pigment (Caltrans, 2019). Given that there is no assurance that striping and markings applied before 2005 have been completely removed or worn away, traffic striping and pavement markings observed within the Project Area generally have the potential to contain lead or chromium. Traffic striping and pavement marking waste generated by this project should be managed during construction. All striping paints should be treated as lead-containing for purposes of determining the applicability of the Division of Occupational Safety and Health, Cal/OSHA, lead standard during removal activities. Used sandblasting materials or ground asphalt waste streams containing striping paint should be properly containerized and characterized to develop a waste profile prior to disposal.

ITEM 9
Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report
Geocon Project No. S3208-05-01 - 19 - February 26, 2026 Revised March 17, 2026

7.0 REFERENCES
American Society for Testing and Materials, Designation E 1527-21 Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process, 2021.

California Department of Transportation (Caltrans), Guideline for Selecting Materials and Standard Special Provisions for Traffic Striping and Pavement Marking, Version 3.0, October 2019.

California Department of Water Resources, Sustainable Groundwater Management Act (SGMA) Data Viewer, https://sgma.water.ca.gov/webgis/?appid=SGMADataViewer#gwlevels, accessed January 2026.

California Geologic Energy Management Division, Well Finder website, https://maps.conservation.ca.gov/doggr/wellfinder/#openModal, accessed January 2026.

California Geological Survey (CGS), Note 36, California Geomorphic Provinces, 2002.

CGS, Preliminary Geologic Map of the Sacramento 30’ x 60’ Quadrangle, California, 2011.

California State Water Resources Control Board, GeoTracker website, https://geotracker.waterboards.ca.gov/default.asp, accessed January 2026.

Geomatrix, Caltrans Initial Site Assessment Guidance Document, 2006.

Harden, D.R, California Geology: 2nd edition, 2003.

State of California, Department of Toxic Substances Control (DTSC), EnviroStor website http://www.envirostor.dtsc.ca.gov/public/, accessed January 2026.

United States Department of Agriculture, Natural Resources Conservation Service, Web Soil Survey website https://websoilsurvey.nrcs.usda.gov/app/WebSoilSurvey.aspx, accessed January 2026.

United States Department of Transportation, National Pipeline Mapping System website, https://pvnpms.phmsa.dot.gov/PublicViewer/, accessed January 2026.

United States Geological Survey (USGS), Citrus Heights Quadrangle, California, 7.5-minute Topographic Quadrangle Map, Scale 1:24,000; 2023.

ITEM 9
Arcade Cripple Creek Trail - Sylvan to Stock Ranch Extension Project Initial Site Assessment Report
Geocon Project No. S3208-05-01 - 20 - February 26, 2026 Revised March 17, 2026

8.0 QUALIFICATIONS
This Phase I ESA report was prepared by Lauren Fordyce-Pitner and Josh Ewert, PG.

Mrs. Fordyce-Pitner is a Staff Scientist with a BS degree in Environmental Science and has worked on a variety of environmental assessment projects.

Mr. Ewert has a BS degree in Geology and 18 years of experience in environmental investigation and remediation, including implementation of Remedial Investigation/Feasibility Study programs and soil and groundwater remedial actions for private industrial and government clients. He has managed a wide variety of projects for clients in the manufacturing, transportation, automobile, and real estate industries including Environmental Protection Agency and DTSC Superfund sites. Mr. Ewert has extensive experience in the performance of Phase II ESAs of commercial, industrial, and agricultural properties throughout California.

I declare that, to the best of my professional knowledge and belief, I meet the definition of environmental professional as defined in §312.10 of 40 CFR 312 and I have the specific qualifications based on education, training, and experience to assess a property of the nature, history, and setting of the subject property. I have developed and performed all appropriate inquiries investigation in conformance with the standards and practices set forth in 40 CFR Part 312.

Josh Ewert, PG
Senior Geologist
ITEM 9

PROJECT

STUDY AREA
CITRUS

HEIGHTS
Stock Ranch
Nature Preserve
Rusch Community Park
Brooktree
Park
Twin Creeks
Park Site

MARIPOSA AVE

GREENBACK LN

HOLLY DR

HILLTOP DR

LINDA SUEWAY

ANTELOPE RD

AUBURN BLVD

BREMEN DR

STOCK RANCH RD

SYLVAN RD

DEWEY DR

DONEGAL DR

OAKCREEK WAY

CROSSWOODS CIR

HALIFAX
ST

OLD AUBURN RD

SUNRISE BLVD

CHESLINE DR

SUMMERPLACE DR

PRATT AVE

CARRIAGE
DR

COYLE AVE

HIGHLAND AVE

UNNAMEDRD

SAN SIMEON DR

WATSON WAY

VAN MAREN LN

BIRDCAGE ST

TUPELO DR

GARDEN GATE DR

OAK LAKES LN

NAVION DR

WESTBROOKDR

SAN JUAN AVE

KERMIT LN

SUN HILL DR

FARMGATE WAY PARKOAKS DR

SAYONARADR

COOK AVE

OAKBROOK DR

BURNHAM DR

EASTGATE AVE

CALVIN DR

SKYLANE DR

ZENITH DR

BIX AVE

SAYBROOK
DR

BROOKTREE DR

LICHEN DR

GREENLEAF DR

SPERRY DR

SPICERDR

MERLINDALE DR

POPLAR AVE
HESPER
WAY

PATTON AVE

ROLLINGWOOD BLVD

LARKSPUR AVE

PRIMROSE DR

DAISY LN

SHUPE DR

MISTY CREEK DR

SUNBURSTWAY

CARMELWOOD DR

WESTGATE DR

PEORIA DR

MERCEDES AVE

UPLANDS WAY

GRAND OAKS BLVD

BRAYTON AVE

CIRCUIT DR

POPPY WAY

RENO LN

CEDAR DR

DOLAN WAY

KANAI AVE

LAUPPE LN

SYCAMORE DR

PRINCE ST

WELLS AVE

LOLETA AVE

LUCKYLN

NELSON LN

PARK DR

LEONARD AVE
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SAN

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ITEM 9
Stock Ranch Nature Preserve
Huntington Square Apartments
Stock Ranch Commercial Center

HUNTINGTON SQUARE LN

SYLVAN RD

SYLVAN VALLEY WAY

PARK DR

SYLVAN CREEK CT

HESPERA WAY
UNNAMED RD$UFDGH &UHHN
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16 1

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3 4
5 6
8 7
9 10
11 12
13 14
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Legend
Site Photograph Location and OrientationAssessor's Parcel NumberParcel BoundaryCreeks and Streams Approximate Project Study Area
Project Features
Trail ImprovementsBridgeRetaining Wall
Curb RampGabion BasketPedestrian RefugeePavement Marking ek Trail - Sylvan to Stock Ranch Extension Project\01_ReportMaps\Figure_2_Site_Plan.aprx GEOCON 3/11/2026 USER Brown M PATH C:\Users\Brown M\OneDrive - Geocon, Inc\GIS_Graphics\Projects\S3208-05-01 Arcade Cripple Cre 211-0850-039 ITEM 9
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WŚŽƚŽϵʹ WŝĐŶŝĐƚĂďůĞƐ͕ŐĂƌďĂŐĞĐĂŶƐ͕ĞĚƵĐĂƟŽŶĂůƐŝŐŶƐ͕ĂůŝŐŚƚƉŽƐƚ͕ĂŶĚĂƌƚŝŶƐƚĂůůĂƟŽŶŝŶƚŚĞ ǁĞƐƚĞƌŶƉŽƌƟŽŶŽĨƚŚĞWƌŽũĞĐƚƌĞĂ͕ĂĚũĂĐĞŶƚƚŽƚŚĞƉƌŽƉŽƐĞĚƚƌĂŝůŚĞĂĚ͘ WŚŽƚŽϭϬͶ sŝĞǁƚŽƚŚĞƐŽƵƚŚŽĨƌĐĂĚĞƌĞĞŬĨƌŽŵƚŚĞǁĞƐƚĞƌŶƉŽƌƟŽŶŽĨƚŚĞWƌŽũĞĐƚƌĞĂ͘ dƌĂƐŚĂŶĚĚĞďƌŝƐĂƌĞƉƌĞƐĞŶƚ͕ĂŶĚƌĞƐŝĚĞŶƟĂůŚŽŵĞƐĂƌĞƉƌĞƐĞŶƚďĞǇŽŶĚƚŚĞĐƌĞĞŬ͘ ITEM 9
ƌĐĂĚĞƌŝƉƉůĞƌĞĞŬdƌĂŝůͲ^ǇůǀĂŶƚŽ^ƚŽĐŬZĂŶĐŚ
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WŚŽƚŽϭϭʹ sŝĞǁƚŽƚŚĞƐŽƵƚŚǁĞƐƚŽĨĂƉŽŶĚ͘dŚĞ^ƚŽĐŬZĂŶĐŚŽŵŵĞƌĐŝĂůĞŶƚĞƌŝƐƉƌĞƐĞŶƚ ďĞǇŽŶĚƚŚĞƉŽŶĚ͘
WŚŽƚŽϭϮͶ sŝĞǁƚŽƚŚĞĞĂƐƚǁŚĞƌĞƚŚĞWƌŽũĞĐƚƌĞĂĐƌŽƐƐĞƐƌĐĂĚĞƌĞĞŬĂŶĚĞŶƚĞƌƐ,ƵŶƟŶŐƚŽŶ ^ƋƵĂƌĞƉĂƌƚŵĞŶƚƐďĞǇŽŶĚƚŚĞĨĞŶĐĞůŝŶĞ͘
ITEM 9
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WŚŽƚŽϭϯͶ sŝĞǁƚŽƚŚĞƐŽƵƚŚǁĞƐƚŽĨĂƉĂǀĞĚƚƌĂŝůĂŶĚƚŚĞĨĞŶĐĞůŝŶĞĂůŽŶŐƌĐĂĚĞƌĞĞŬĨƌŽŵ ,ƵŶƟŶŐƚŽŶ^ƋƵĂƌĞƉĂƌƚŵĞŶƚƐŝŶƚŚĞĞĂƐƚĞƌŶƉŽƌƟŽŶŽĨƚŚĞWƌŽũĞĐƚƌĞĂ͘ WŚŽƚŽϭϰͶ sŝĞǁƚŽƚŚĞƐŽƵƚŚĞĂƐƚĨƌŽŵ,ƵŶƟŶŐƚŽŶ^ƋƵĂƌĞƉĂƌƚŵĞŶƚƐǁŚĞƌĞĂƉĂǀĞĚƚƌĂŝů ĞǆƚĞŶĚƐƚŽǁĂƌĚƐ^ǇůǀĂŶZŽĂĚŝŶƚŚĞĞĂƐƚĞƌŶƉŽƌƟŽŶŽĨƚŚĞWƌŽũĞĐƚƌĞĂ͘ ITEM 9
ƌĐĂĚĞƌŝƉƉůĞƌĞĞŬdƌĂŝůͲ^ǇůǀĂŶƚŽ^ƚŽĐŬZĂŶĐŚ
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WŚŽƚŽϭϱͶ sŝĞǁƚŽƚŚĞƐŽƵƚŚŽĨƌĞƐŝĚĞŶƟĂůŚŽŵĞƐŽŶƚŚĞĂĚũŽŝŶŝŶŐƉƌŽƉĞƌƚǇĂŶĚĐĂƵƟŽŶ ƚĂƉĞŚƵŶŐĨƌŽŵƚƌĞĞƐŝŶƚŚĞĞĂƐƚĞƌŶƉŽƌƟŽŶŽĨƚŚĞWƌŽũĞĐƚƌĞĂ͘ WŚŽƚŽϭϲͶ sŝĞǁƚŽƚŚĞĞĂƐƚ͕ĂĐƌŽƐƐ^ǇůǀĂŶZŽĂĚ͕ŽĨƚŚĞĞĂƐƚĞƌŶƉŽƌƟŽŶŽĨƚŚĞWƌŽũĞĐƚƌĞĂĂŶĚ ƉƌŽƉŽƐĞĚůŽĐĂƟŽŶŽĨĂƐŝŐŶĂůŝǌĞĚƉĞĚĞƐƚƌŝĂŶĐƌŽƐƐŝŶŐĂƚƌĐĂĚĞƌĞĞŬƌŝĚŐĞ͘ ITEM 9
ƌĐĂĚĞƌŝƉƉůĞƌĞĞŬdƌĂŝůͲ^ǇůǀĂŶƚŽ^ƚŽĐŬZĂŶĐŚ
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WŚŽƚŽϭϳͶ sŝĞǁƚŽƚŚĞƐŽƵƚŚ͕ĨƌŽŵƚŚĞĞĂƐƚĞƌŶƉŽƌƟŽŶŽĨƚŚĞWƌŽũĞĐƚƌĞĂ͕ŽĨƚŚĞƌĐĂĚĞƌĞĞŬ ƌŝĚŐĞ͕^ǇůǀĂŶZŽĂĚ͕ĂŶĚƌĞƐŝĚĞŶƟĂůŚŽŵĞƐ͘
WŚŽƚŽϭϴͶsŝĞǁƚŽƚŚĞŶŽƌƚŚĞĂƐƚŽĨƚŚĞ,ƵŶƟŶŐƚŽŶ^ƋƵĂƌĞƉĂƌƚŵĞŶƚƐŽŶƚŚĞĂĚũŽŝŶŝŶŐ ƉƌŽƉĞƌƚǇĨƌŽŵƚŚĞĞĂƐƚĞƌŶƉŽƌƟŽŶŽĨƚŚĞWƌŽũĞĐƚƌĞĂ͘
ITEM 9
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WŚŽƚŽϭϵͶ sŝĞǁƚŽƚŚĞƐŽƵƚŚǁĞƐƚŽĨƚŚĞĂĚũŽŝŶŝŶŐ^ƚŽĐŬZĂŶĐŚEĂƚƵƌĞWƌĞƐĞƌǀĞĨƌŽŵƚŚĞ ǁĞƐƚĞƌŶƉŽƌƟŽŶŽĨƚŚĞWƌŽũĞĐƚƌĞĂ͘
ITEM 9

DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT APPENDIX F: Water Quality Technical Memorandum

ITEM 9
Water Quality Technical Memorandum
Arcade-Cripple Creek Trail (Sylvan Road to Stock Ranch) Extension Project
City of Citrus Heights, Sacramento County, California
District 3-SAC
CRP 5475(053)
March 2026
ITEM 9
Water Quality Technical Memorandum
Water Quality Technical Memorandum
Arcade-Cripple Creek Trail (Sylvan Road to Stock Ranch) Extension Project City of Citrus Heights, California
District 3-SAC
CRP 5475(053)
March 2026

STATE OF CALIFORNIA
Department of Transportation
Prepared By: ____________________________ Date: 3/5/26
Amy Bakker/Senior Environmental Planner
916-858-0642
Dokken Engineering
110 Blue Ravine Road, Suite 200
Folsom, CA 95630
Approved By:______________________________ Date: ____________ Daniel Kehrer, Principal Civil Engineer
(916) 727-4770
City of Citrus Heights General Services Department
6360 Fountain Square Drive
Citrus Heights CA 95621
Approved By:__________________________________ Date: ____________ Caitlin Greenwood, Associate Environmental Planner
530-682-2984
Local Assistance–Environmental Support
Caltrans, District 3
For individuals with sensory disabilities, this document can be made available in Braille, in large print, on audiocassette, or on computer disk. To obtain a copy in one of these alternate formats, please call or write to Department of Transportation, Attn: Dennis Keaton, Public Information Officer, 703 B Street Marysville, CA 95901; (916) 825-5252 (Voice) or use the California Relay Service (800) 735-2929 (TTY to Voice), (800) 735- 2922 (Voice to TTY) or 711.

ITEM 9
Water Quality Technical Memorandum
Water Quality Assessment Report ii

EXECUTIVE SUMMARY
The City of Citrus Heights (City) proposes to construct the Arcade-Cripple Creek Trail (Sylvan to Stock Ranch) Extension Project (Project), a 0.5-mile addition to the planned 16-mile Creek Corridor Trail Project (CCTP). The purpose of this Project is to close a gap in the existing trail system by replacing dirt and narrow concrete paths with an Americans with Disabilities Act (ADA) compliant Class I multi-use trail. This trail extension is needed to enhance pedestrian and bicycle connectivity, provide a safe recreational facility, and improve access through the Arcade Creek greenbelt.

The Biological Study Area (BSA) includes two aquatic features: Arcade Creek and Arcade Creek tributary (perennial stream channel) and two water quality/detention basins. Arcade Creek is the main surface water feature within the Project area that will be permanently impacted by the Project. Arcade Creek within the Project area is 303(d) listed and considerations for Total Maximum Daily Loads (TMDLs) (Caltrans 2025) for the following:
x Bifenthrin
x Copper
x Fipronil Sulfone
x Malathion
x Permethrin
x Pyrethroids
x Toxicity
Arcade Creek and the Arcade Creek tributary are also jurisdictional waters of both the U.S. and the state, whereas the associated water quality/detention basins are considered waters of the state only. These surface waters are regulated under Section 401 of the Clean Water Act (CWA), as administered by the Regional Water Quality Control Board (RWQCB), and Arcade Creek and its tributary are additionally subject to Section 404 permitting. The California Department of Fish and Wildlife (CDFW) also asserts jurisdiction over the bed, bank, and channel of these waters, as well as any associated riparian vegetation. The following permits will be obtained for the proposed Project prior to construction: Section 401 Water Quality Certification from the RWQCB, non-reporting Section 404 Nationwide Permit 14, and a Section 1602 Streambed Alteration Agreement from CDFW.

The Project would result in an increase of approximately 0.47 acre of new impervious surface, which would contribute to an increase in the volume of storm water runoff from the multi-use trail surface that could enter the drainage system and eventually the waterways within the Project. Impacts to water quality may result from sediment-laden storm water discharged into these waterways. With the inclusion of permanent treatment control Best Management Practices (BMPs), Project impacts to water quality would not be substantial.

ITEM 9
Water Quality Technical Memorandum
Water Quality Assessment Report iii

TABLE OF CONTENTS
1 INTRODUCTION .............................................................................................. 1

1.1 Approach to Water Quality Assessment ........................................................... 1

1.2 Project Description ........................................................................................... 1

1.3 Project Purpose ................................................................................................ 2 2 REGULATORY SETTING ................................................................................ 6

2.1 Federal Laws and Requirements ..................................................................... 6

2.2 State Laws and Requirements ......................................................................... 7

2.3 Regional and Local Requirements ................................................................. 10 3 AFFECTED ENVIRONMENT ......................................................................... 11

3.1 General Environmental Setting ...................................................................... 11

3.2 Water Quality Objectives/Standards and Beneficial Uses .............................. 16 4 ENVIRONMENTAL CONSEQUENCES ......................................................... 22

4.1 Potential Impacts to Water Quality ................................................................. 22

4.1.1 Long Term Impacts and Anticipated Changes to the Physical/Chemical Characteristics of the Aquatic Environment .................................................... 22

4.1.2 Anticipated Changes to the Biological Characteristics of the Aquatic Environment ................................................................................................... 23

4.1.3 Anticipated Changes to the Human Use Characteristics of the Aquatic Environment ................................................................................................... 23

4.1.4 Short Term Impacts During Construction ....................................................... 25

4.2 Cumulative Impacts ........................................................................................ 25 5 AVOIDANCE, MINIMIZATION, AND/OR MITIGATION MEASURES ............ 27 6 REFERENCES ............................................................................................... 28

6.1 Works Cited .................................................................................................... 28

6.2 Preparer(s) Qualifications ............................................................................... 30 List of Figures
Figure 1: Project Vicinity .................................................................................................. 3 Figure 2: Project Location ............................................................................................... 4 Figure 3: Project Features ............................................................................................... 5 Figure 4: Waters and Vegetation Communities ............................................................. 12 Figure 5: Project Impacts .............................................................................................. 24 ITEM 9
Water Quality Technical Memorandum
Water Quality Assessment Report iv
List of Tables
Table 1. Central Valley RWQCB Water Quality Objectives for Inland Surface Waters . 16 Table 2. Existing and Potential Beneficial Uses ............................................................ 19 Table 3. Arcade Creek 303(d) List ................................................................................ 21

LIST OF APPENDICES
Appendix A - NRCS Soil Survey
Appendix B – FEMA FIRMETTE Map
ITEM 9
Water Quality Technical Memorandum
Water Quality Assessment Report v

ACRONYMS LIST
ADA Americans with Disabilities Act
ASBS Areas of Special Biological Significance
Basin Plan Water Quality Control Plan
BMPs Best Management Practices
BSA Biological Study Area
Caltrans California Department of Transportation
CCTP City’s Creek Corridor Trail Project
CDFW California Department of Fish and Wildlife
CEQA California Environmental Quality Act
CFR Code of Federal Regulations
CGP Construction General Permit
CIP California Improvement Plan
City City of Citrus Heights
COI Change of Information
CWA Clean Water Act
DSA Disturbed Soil Area
DMP Drainage Master Plan
EFH Essential Fish Habitat
ESA Environmentally Sensitive Areas
°F Fahrenheit
FEMA Federal Emergency Management Agency
General Plan City of Citrus Heights General Plan
HAPC Habitat Areas of Particular Concern
LEDPA Least Environmentally Damaging Practicable Alternative MS4s Municipal Separate Storm Sewer Systems
msl Mean Sea Level
NAL Numeric Action Level
NELs Numeric Effluent Limits
NEPA National Environmental Policy Act
NES Natural Environment Study
NOAA National Oceanic and Atmospheric Administration
NOI Notice of Intent
NOT Notice of Termination
NPDES National Pollutant Discharge Elimination System
NRCS Natural Resources Conservation Services
NWPT Northwestern Pond Turtle
PFMC Pacific Fishery Management Council
PRDs Permit Registration Documents
Project Arcade-Cripple Creek Trail (Sylvan Road to Stock Ranch) Extension Project
QPEs Qualifying Precipitation Events
QSD Qualified Stormwater Developer
QSP Qualified Stormwater Practitioner
R factor Rainfall-runoff erosivity factor
RL Risk Level
ITEM 9
Water Quality Technical Memorandum
Water Quality Assessment Report vi
ROW Right-of-Way
RUSLE Revised Universal Soil Loss Equation
RWQCB Regional Water Quality Control Board
SMARTS Stormwater Multiple Application and Report Tracking System
SWMP Stormwater Management Plan
SWPPP Stormwater Pollution Prevention Plan
SWRCB State Water Resources Control Board
TMDLs Total Maximum Daily Loads
U.S. EPA United States Environmental Protection Agency
USACE United States Army Corps of Engineers
USGS United States Geological Survey
VELB Valley Elderberry Longhorn Beetle
WDID Waste Discharge Identification Number
WDRs Waste Discharge Requirements
WPCP Water Pollution Control Plan (or Program)
WQAR Water Quality Assessment Report
ITEM 9
Water Quality Technical Memorandum
Water Quality Technical Memorandum 1
1 INTRODUCTION

1.1 Approach to Water Quality Assessment
The purpose of the Water Quality Assessment Technical Memorandum (WQAR) is to fulfill the requirements of the National Environmental Policy Act (NEPA) and the California Environmental Quality Act (CEQA), and to provide information for National Pollutant Discharge Elimination System (NPDES) permitting. The document includes a discussion of the proposed Project, the general environmental setting of the Project area, and the regulatory framework with respect to water quality. It also provides data on surface water and groundwater resources within the Project area and the water quality of these waters, describes water quality impairments and beneficial uses, identifies potential water quality impacts/benefits associated with the proposed Project, and recommends avoidance and/or minimization measures for potentially adverse impacts.

1.2 Project Description
The City of Citrus Heights proposes to construct a 0.5-mile addition to the planned 16- mile CCTP as part of the Project (Figure 1. Project Location; Figure 2. Project Vicinity).

The Project is funded through the federal Carbon Reduction Program and therefore requires compliance with both NEPA and CEQA. The lead agency for CEQA compliance is the City of Citrus Heights and the federal lead agency for NEPA compliance is the California Department of Transportation (Caltrans).

The Project is located in the City of Citrus Heights and will extend east from the existing Stock Ranch Trail behind the Costco/Walmart shopping center to Sylvan Road. The proposed alignment begins south of the Walmart property boundary and proceeds east through the Stock Ranch Nature Preserve, curving south around Walmart’s water quality detention basin. The alignment continues north, crossing a tributary of Arcade Creek, and traverses along the south side of the Huntington Square Apartments complex prior to connecting to Sylvan Road. The alignment terminates east of Sylvan Road at the location of a planned future trail extension segment from Sylvan Road to Mariposa Avenue. The Project has independent utility and would function as a stand-alone improvement.

Construction activities will involve grading to achieve ADA-compliant slopes, installing the creek crossing, paving the trail, erecting the solar lighting, constructing bank protection, and adding pedestrian signal infrastructure with minor utility adjustments as needed.

To accommodate construction, right-of-way (ROW) acquisitions will be required from several parcels. These include a permanent easement and permit to enter (PTE) from the Sunrise Recreation & Park District and a TCE from Walmart. An existing trail easement exists across the Huntington Square Apartments property and there is potential for this permanent easement to be modified to best incorporate the trail alignment with the physical site features.

Construction access will be provided primarily through the Walmart parking lot under a TCE, as well as a permit to enter for access from the Huntington Square Apartments ITEM 9
Water Quality Technical Memorandum
Water Quality Technical Memorandum 2
parcel. These provisions will allow safe and efficient construction of the trail and its associated improvements.

1.3 Project Purpose
The purpose of this Project is to close a gap in the existing trail system by replacing dirt and narrow concrete paths with an Americans with Disabilities Act (ADA) compliant Class I multi-use trail. This trail extension is needed to enhance pedestrian and bicycle connectivity, provide a safe recreational facility, and improve access through the Arcade Creek greenbelt.

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ITEM 9
Water Quality Technical Memorandum
Water Quality Technical Memorandum 6
2 REGULATORY SETTING

2.1 Federal Laws and Requirements
Clean Water Act
In 1972 Congress amended the Federal Water Pollution Control Act, making the addition of pollutants to the waters of the U.S. from any point source unlawful unless the discharge is in compliance with a NPDES permit. Known today as the CWA, Congress has amended it several times. In the 1987 amendments, Congress directed dischargers of storm water from municipal and industrial/construction point sources to comply with the NPDES permit scheme. Important CWA sections are:
x Sections 303 and 304 require states to promulgate water quality standards, criteria, and guidelines.
x Section 401 requires an applicant for a federal license or permit to conduct any activity, which may result in a discharge to waters of the U.S., to obtain certification from the State that the discharge would comply with other provisions of the act. (Most frequently required in tandem with a Section 404 permit request. See below). x Section 402 establishes the NPDES, a permitting system for the discharges (except for dredge or fill material) of any pollutant into waters of the U.S. The RWQCBs administer this permitting program in California. Section 402(p) requires permits for discharges of storm water from industrial/construction and MS4s. x Section 404 establishes a permit program for the discharge of dredge or fill material into waters of the U.S. This permit program is administered by the USACE.

The objective of the CWA is “to restore and maintain the chemical, physical, and biological integrity of the Nation’s waters.”
Section 404 Permitting
USACE issues two types of 404 permits: General and Standard permits. For General permits there are two types: Regional permits and Nationwide permits. Regional permits are issued for a general category of activities when they are similar in nature and cause minimal environmental effect. Nationwide permits are issued to authorize a variety of minor project activities with no more than minimal effects.

There are also two types of Standard permits: Individual permits and Letters of Permission. Ordinarily, projects that do not meet the criteria for a Nationwide Permit may be permitted under one of USACE’s Standard permits. For Standard permits, the USACE decision to approve is based on compliance with U.S. Environmental Protection Agency’s (EPA) Section 404 (b)(1) Guidelines (U.S. EPA CFR 40 Part 230), and whether permit approval is in the public interest. The 404(b)(1) Guidelines were developed by the U.S.

EPA in conjunction with USACE, and allow the discharge of dredged or fill material into the aquatic system (waters of the U.S.) only if there is no practicable alternative that would ITEM 9
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have less adverse effects. The Guidelines state that USACE may not issue a permit if there is a least environmentally damaging practicable alternative, to the proposed discharge that would have less effects on waters of the U.S., and not have any other significant adverse environmental consequences. Per Guidelines, documentation is needed that a sequence of avoidance, minimization, and compensation measures has been followed, in that order. The Guidelines also restrict permitting activities that violate water quality or toxic effluent standards, jeopardize the continued existence of listed species, violate marine sanctuary protections, or cause “significant degradation” to waters of the U.S. In addition, every permit from the USACE, even if not subject to the 404(b)(1) Guidelines, must meet general requirements. See 33 CFR 320.4.

2.2 State Laws and Requirements
Porter-Cologne Water Quality Control Act
The Porter-Cologne Water Quality Control Act (Porter-Cologne) is the principal law governing water quality regulation in California. This statute established the State Water Resources Control Board (SWRCB) and the nine RWQCBs, which are charged with implementing its provisions. Porter-Cologne establishes a comprehensive program for the protection of water quality and the beneficial uses of water. It applies to surface waters, wetlands, and groundwater and to both point and nonpoint sources. PorterCologne is found in the California Water Code beginning with Section 13000. In addition, Title 23 of the California Code of Regulations (CCR) contains administrative and regulatory elements of water quality and quantity management in California. The SWRCB was formed in 1967 when the State Water Rights Board and the SWQCB were merged by the State Legislature, based on the realization that decisions affecting water quality and water rights are inseparable. Under its dual legal authority, the SWRCB allocates rights to the use of surface water and, together with the nine RWQCBs, protects water quality in all waters of the state. The project area is located within Region 5 — the Central Valley RWQCB. The SWRCB provides program guidance and oversight, allocates funds, and reviews RWQCB decisions. The RWQCBs have responsibility for individual permitting, inspection, and enforcement actions within each of nine hydrologic regions. Porter-Cologne also incorporates many provisions of the CWA such as delegation to the SWRCB and RWQCBs of the National Pollutant Discharge Elimination System (NPDES) permitting program.

State Water Resources Control Board and Regional Water Quality Control Boards The SWRCB adjudicates water rights, sets water pollution control policy, and issues water board orders on matters of statewide application, and oversees water quality functions throughout the state by approving Basin Plans, TMDLs, and NPDES permits. RWCQBs are responsible for protecting beneficial uses of water resources within their regional jurisdiction using planning, permitting, and enforcement authorities to meet this responsibility.

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National Pollutant Discharge Elimination System (NPDES) Program Section 402(p) of the CWA requires the issuance of NPDES permits for five categories of stormwater dischargers, including MS4s. The City of Citrus Heights along with the Cities of Elk Grove, Folsom, Galt, Rancho Cordova, and Sacramento, and the County of Sacramento operate under a MS4 permit to discharge urban runoff from in their municipal jurisdictions (Order No. R5-2016-0040 with the Citrus Heights-specific General Order No. as R5-2016-0040-004 and NPDES Permit No. CAS0085324) (Central Valley RWQCB 2016). The permit covers requirements for management of hydromodification and requires that the City prepare a SWMP (also known as Stormwater Quality Improvement Plans) and impose water quality and watershed protection measures for all development projects. The intent of the WDRs in the NPDES Permit is to attain water quality standards and protection of beneficial uses consistent with the Water Quality Control Plan (Basin Plan). The NPDES permit prohibits discharges from causing violations of applicable water quality standards or resulting in conditions that create a nuisance or water quality impairment in receiving waters. The NPDES also requires every new construction project to secure a permit that implements the following measures:
• Eliminate or reduce non-stormwater discharges to stormwater systems and other waters of the nation.
• Develop and implement a Stormwater Pollution Prevention Plan (SWPPP). • Perform inspections of stormwater control structures and pollution prevention measures.

Stormwater quality control measures within the City of Citrus Heights are guided by the Sacramento Region Stormwater Quality Design Manual (City of Sacramento 2018). The manual outlines planning tools and requirements to reduce urban runoff pollution to the maximum extent practicable from new development and redevelopment projects, including the use of porous surfaces on roadways.

Construction General Permit
The Construction General Permit (NPDES No. CAS000002, SWRCB Order No. 2022- 0057-DWQ) and effective on September 1, 2023. The permit regulates storm water discharges from construction sites that result in a Disturbed Soil Area (DSA) of one acre or greater, and/or are smaller sites that are part of a larger common plan of development.

For all projects subject to the CGP, applicants are required to develop and implement an effective SWPPP.

By law, all storm water discharges associated with construction activity where clearing, grading, and excavation results in soil disturbance of at least one acre must comply with the provisions of the CGP. Construction activity that results in soil disturbances of less than one acre is subject to this CGP if there is potential for significant water quality impairment resulting from the activity as determined by the RWQCB. Operators of regulated construction sites are required to develop SWPPPs; to implement sediment, erosion, and pollution prevention control measures; and to obtain coverage under the CGP.

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The CGP separates projects into Risk Levels 1, 2, or 3. Risk Levels are determined during the planning and design phases and are based on potential erosion and transport to receiving waters. Requirements apply according to the Risk Level determined. For example, a Risk Level 3 (highest risk) project would require compulsory storm water runoff pH and turbidity monitoring, and pre- and post-construction aquatic biological assessments during specified seasonal windows. Based on preliminary analysis, the Risk Level for this project is estimated to be a Level 1. Additional hydraulic analysis will take place prior to final design to confirm the ultimate Risk Level and extent of BMP implementation for the project.

Section 401 Permitting
Under Section 401 of the CWA, any project requiring a federal license or permit that may result in a discharge to a water of the United States must obtain a 401 Certification, which certifies that the project would be in compliance with State water quality standards. The most common federal permit triggering 401 Certification is a CWA Section 404 permit, issued by USACE. The 401 permit certifications are obtained from the appropriate RWQCB, dependent on the project location, and are required before USACE issues a 404 permit.

In some cases, the RWQCB may have specific concerns with discharges associated with a project. As a result, the RWQCB may issue a set of requirements known as WDRs under the State Water Code (Porter-Cologne Act) that define activities, such as the inclusion of specific features, effluent limitations, monitoring, and plan submittals that are to be implemented for protecting or benefiting water quality. WDRs can be issued to address both permanent and temporary discharges of a project.

Section 1602: Streambed Alteration Agreement
Under CFG Code 1602, public agencies are required to notify CDFW before undertaking any project that will: substantially divert or obstruct the natural flow of any river, stream or lake; substantially change or use any material from the bed, channel or bank of any river, stream, or lake; or deposit debris, waste or other materials that could pass into any river, stream or lake. Preliminary notification and project review generally occurs during the environmental process. When an existing fish or wildlife resource within CDFW jurisdiction may be substantially adversely affected, CDFW is required to propose reasonable project changes to protect the resources. These modifications are formalized in a Streambed Alteration Agreement that becomes part of the plans, specifications, and bid documents for the project
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2.3 Regional and Local Requirements
Regional Water Quality Control Board (RWQCB) Basin Plan The Project is under the jurisdiction of the Central Valley RWQCB. The Central Valley RWQCB implements the Basin Plan for the California Regional Water Quality Control Board Central Valley Region: The Sacramento River Basin and the San Joaquin River Basin (Central Valley RWQCB 2019) to regulate surface and groundwater quality in the region. The Basin Plan lists beneficial uses and water quality objectives to protect resources within its jurisdiction.

Stormwater Management Plan
In 2007, Sacramento County and the cities of Citrus Heights, Elk Grove, Folsom, Galt, Rancho Cordova, Roseville, and Sacramento created the Stormwater Quality Design Manual for the Sacramento and South Placer Regions. The manual describes selection measures for source pollution and stormwater treatment for new development. In 2018, the partnership updated the manual to include information from the original as well as hydromodification management and low-impact development design standards (City of Sacramento 2018).

City of Citrus Heights Drainage Master Plan
In 2010 the City of Citrus Heights adopted a comprehensive Drainage Master Plan (DMP) to guide improvements to the existing storm drainage and flood control system. The DMP provides a range of drainage concepts intended to upgrade the City’s drainage infrastructure and address identified deficiencies. Between 2012 and 2016, the City completed five phases of the DMP, prioritizing areas that lacked a defined drainage system. Six additional phases remain to be completed (DMP 2025). The DMP identifies and evaluates drainage deficiencies throughout the City and was developed to reduce or eliminate localized flooding and drainage problems. Implementation of the DMP falls within the City’s Capital Improvement Program (CIP), which outlines long-term investments in infrastructure and projects designed to enhance community services and facilities. The CIP serves as a five-year budgeting and planning tool, is reviewed by the Planning Commission for consistency with the City of Citrus Heights General Plan (General Plan) and is adopted by the City Council. The Project will comply with the adopted DMP and any future updates approved prior to construction.

City of Citrus Heights General Plan
The policies below are excerpted from the City’s General Plan (City of Citrus Heights 2011a). These policies are designed to ensure that the water supply is clean and safe within the City’s jurisdiction.

Policy 49.1: Continue to implement floodplain zoning and undertake other actions required to comply with State and federal floodplain development requirements and maintain the City’s eligibility under the National Flood Insurance Program.

Policy 49.2: Integrate sustainable stormwater management techniques in site design to reduce stormwater runoff and control erosion.

Policy 49.3: Require evaluation of potential flood hazards prior to approval of development projects.

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Policy 49.8: Reduce pollutants being discharged into the drainage system to the maximum extent feasible to meet required federal National Pollution Discharge Elimination System standards.
3 AFFECTED ENVIRONMENT
This affected environment section describes the environmental characteristics within the proposed Project area. Population, land use, topography, regional and local hydrology, groundwater hydrology, geology/soils, biological communities, water quality standards, and beneficial uses are discussed.

3.1 General Environmental Setting
The Project is centrally located in the City of Citrus Heights, within Section 26, Township 10 North, Range 6 East. It is within the USGS Citrus Heights 7.5-minute topographic quadrangle. The Project area runs through the Arcade Creek greenbelt within the Sunrise Recreation and Parks District in the Stock Ranch Nature Preserve, adjacent to Van Maren Park. The proposed segment is from Sylvan Road to Stock Ranch, connecting to existing trails. The Project area includes Arcade Creek. Arcade Creek is a natural riverine corridor that flows east to west through northern Sacramento County.

Population and Land Use
According to the U.S. Census, the City of Citrus Heights has a total population of 86,909 as of 2024 (U.S. Census 2024). The population has decreased approximately 0.8% since 2020. Land uses within the Project area are a mixture of General Commercial, Low and Medium Density Residential, and Open Space (City of Citrus Heights 2020). The undeveloped area within the Project area containing Arcade Creek is designated as Open Space and is in the Stock Ranch Nature Preserve. This preserve functions as a park for the community and includes floodways and manmade stormwater detention basins.

Topography
The topography within the Project is flat and the elevation ranges between approximately 125 feet to 140 feet above mean sea level (msl). Appendix A. Natural Resources Conservation Service (NRCS) Custom Soil Resource Report (Appendix A; NRCS 2025) was queried for the Project, and the soil types within the BSA include FiddymentOrangevale complex, 2 to 8 percent slopes (95.5% of the BSA) and FiddymentOrangevale-Urban land complex, 2 to 8 percent slopes (4.5% of the BSA) (NRCS 2025).

Hydrology
Regional and Local Hydrology
The Project is located within Sacramento County. The mainstem of Arcade Creek, which originates in Orangevale and flows into the Natomas East Main Drainage Canal, is approximately 16.2 miles long with a watershed area of about 29.7 square miles. It ultimately discharges to the Sacramento River. Within the BSA, the Arcade Creek channel also includes a perennial tributary which splits off from the mainstem south of Huntington Square Lane (Figure 4. Waters and Vegetation Communities). Historic aerial imagery indicates that the tributary once flowed south from Auburn Boulevard, but over time ITEM 9
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residential development shortened the channel, leaving only a remnant of the original tributary. The Arcade Creek channel and its tributary are part of the Arcade Creek watershed, a small, urbanized watershed covering approximately 38 square miles.

Surrounding land use in the Arcade Creek watershed is primarily residential and commercial with transportation infrastructure such as roads, trails and parking lots.

Historically, Arcade Creek functioned as a seasonal stream that carried water predominantly during the winter and spring months. In some years, portions of the creek and its tributaries would completely dry out during the summer. With increasing urbanization, the creek transitioned to a perennial system, likely beginning around 60 years ago. Today, dry-weather flows are sustained by inputs such as landscape irrigation runoff, car washing, industrial discharges, and other non-stormwater sources, resulting in Arcade Creek maintaining continuous flow throughout the year. Most surface water within Arcade Creek is urban runoff (City of Sacramento 2003). Arcade Creek is the main surface hydrological feature in the City of Citrus Heights.

Precipitation and Climate
Sacramento County experiences a mediterranean climate consisting of hot, dry summers and cool, wet winters. The average annual high temperature is approximately 75 degrees Fahrenheit (°F), and the average annual low temperature is approximately 49°F. The region averages 18.14 inches of precipitation annually (U.S. Climate Data 2025).

Surface Water
Two aquatic feature types were observed within the BSA during the October 2025 biological survey: Arcade Creek (perennial stream channel), which was discussed above, and two manmade water quality/detention basins.

Water Quality/Detention Basins
During the October 2025 field survey, two water quality/detention basins were documented within the BSA. These areas are gently sloping, engineered depressions designed to capture and temporarily detain stormwater runoff.

The western basin was completely dry at the time of the survey. However, recent aerial imagery (from November 2023) indicates that the area becomes inundated with water during heavy rain events caused by stormwater runoff from the adjacent commercial and residential areas. The basin supports annual grassland habitat dominated by spikeweed (Centromadia fitchii) and wild oat (Avena fatua) which appeared to have been recently trimmed.

The eastern basin was full of water at the time of the survey. This basin is supplied by a small stream channel to the north, which collects stormwater runoff from adjacent residential homes to the east and the paved parking lot to the west. The connected stream channel originates at the homes along Gallant Circle and flows south and southeast before reaching the basin. According to historic aerial imagery, this basin tends to hold water longer than the western basin, allowing it to grow hydrophytic vegetation species such as broadleaf cattail (Typha latifolia), tule (Schoenoplectus acutus var. occidentalis), cottonwoods (Populus fremontii) and willow trees (Salix lasiolepis, Salix gooddingii). At the time of the survey, the cattails and tules in the channel appeared to be in poor health ITEM 9
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and recently trimmed. The BSA contains approximately 1.89 acres (5%) of water quality/detention basins.

Because these basins are artificial ponds constructed in dry land for stormwater treatment and detention, they fall under the exclusion at 40 CFR § 120.2(b)(5) and therefore do not meet the current definition of waters of the U.S. In addition, permitting under Section 401 of the CWA is not warranted as there is little to no risk of discharge to another water body and there is no potential for the Project improvements to encroach on these features.

Areas of Special Biological Significance (ASBS)
Areas of Special Biological Significance (ASBS) are ocean areas monitored and maintained for water quality by the State Water Resources Control Board. ASBS cover much of the length of California's coastal waters. They support an unusual variety of aquatic life, and often host unique individual species. ASBS are basic building blocks for a sustainable, resilient coastal environment and economy. According to the map provided by the State Water Resources Control Board (SWRCB 2017), there are no Areas of Special Biological Significance sites within the BSA.

Floodplains
The Federal Emergency Management Agency (FEMA) Flood Insurance Rate Map designates the Project area within three zones: Zone X, Zone AE, and Regulatory Floodway. Zone X signifies a minimal flood hazard area with a 0.2% annual chance of flooding. Zone AE designates areas that are within the 100-year base flood zone and have a 1% annual chance of flooding. The Regulatory Floodway is designated as a special flood hazard area within the 100-year base flood zone and a 1% annual chance of flooding (Appendix B. FEMA FIRMette Map).

Municipal Supply
According to the City of Citrus Heights Background Report, water supply in the City consists of both surface water and groundwater sources. Urban runoff from residential and commercial irrigation, driveway and parking lot cleaning, swimming pool draining, precipitation events, and snowmelt from the Sierra Nevada are the main sources of surface water supply in the City. However, a majority of the City’s water supply comes from groundwater (City of Citrus Heights 2020b). The Sacramento County Water Agency is the water service provider within the Project area. There are no water recharge facilities within the Project area.

Groundwater Hydrology
The City of Citrus Heights is located on the Fair Oaks Geologic Formation (City of Citrus Heights 2020b). This geologic formation is comprised of relatively thick deposits of silt and clay with thinner deposits of sand and gravel. The Fair Oaks Formation can yield moderate to high quantities of water, primarily dependent upon whether fine grained or coarse material is present (City of Citrus Heights 2020b). Wells to depths greater than 300 feet may encounter the underlying Mehrten Formation, with water yields roughly equivalent to the Fair Oaks Formation. Groundwater in the vicinity of Citrus Heights ITEM 9
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generally flows to the west and ranges in depth from approximately 80 feet above msl in the east to 20 feet below msl in the west (County of Sacramento 1996).

Geology/Soils
The soil types within the Project area include Fiddyment-Orangevale complex, 2 to 8 percent slopes and Fiddyment-Orangevaile-Urban land complex, 2 to 8 percent slopes (NRCS 2025). The erodibility factor (K-factor) for this area is 0.43, indicating that soils are moderately susceptible to particle detachment, and that it produces runoff at moderate rates (Caltrans 2025). The Project area is also categorized as hydrologic soil group type ‘B’ which consists of moderately deep and well drained soils with moderately fine to course textures (Appendix A).

Biological Communities
Aquatic Habitat
Aquatic habitat in the Project area includes Arcade Creek (perennial stream channel) and two manmade water quality/detention basins.

Special Status Species
Literature research, habitat assessments, and biological surveys determined that the Project area was potentially suitable for the following special status species: chinook Salmon Central Valley spring-run ESU (Oncorhynchus tshawytscha pop. 11), valley elderberry longhorn beetle (Desmocerus californicus dimorphus [VELB]), song sparrow (“Modesto” population) (Melospiza melodia pop. 1), Swainson’s hawk (Buteo swainsoni), northwestern pond turtle (Actinemys marmorata [NWPT]), and Sanford's arrowhead (Sagittaria sanfordii).

Stream/Riparian Habitats
The BSA contains approximately 4,465 linear feet of Arcade Creek and it’s tributary (Figure 4) This segment of Arcade Creek within the BSA is bordered by riparian, annual grasslands, and urban habitat communities and flows northeast to southwest. Dominant vegetation observed within the bed and banks of Arcade Creek and its tributary includes southern catalpa trees (Catalpa speciosa), common knotweed (Persicaria lapathifolia), interior live oak trees (Quercus wislizeni) and Himalayan blackberry (Rubus armeniacus).

Arcade Creek and its tributary comprise approximately 2.69 acres (7%) of the BSA.

Wetlands
Jurisdictional delineations were conducted by Dokken Engineering biologists, Caroline Clarkson and Katie Jacobson on October 17, 2025 to identify jurisdictional resources present within the BSA. No wetlands were identified during the jurisdictional delineation survey (Figure 4). Wetland delineations were conducted in accordance with technical methods outlined in the Corps of Engineers Wetlands Delineation Manual (USACE 1987), Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Arid West Region (USACE 2008), and A Field Guide to the Identification of the OHWM in the Arid West Region of the Western United States (Lichvar 2008).

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Arcade Creek is the main surface hydrological feature in the City Citrus Heights. Two aquatic feature types were observed within the BSA during the October 2025 biological survey: Arcade Creek (perennial stream channel) and two water quality/detention basins (Figure 4).

3.2 Water Quality Objectives/Standards and Beneficial Uses Surface Waters
Water quality is most affected by land development, agriculture, grazing, and urban runoff. Constituents found in urban runoff vary during a storm event, from event to event within a given area, and from area to area within a given watershed. Variances can be the result of differences in rainfall intensity and occurrence, geographic features, and the land use of the area, as well as vehicle traffic and the percentage of impervious surface.

Furthermore, sediment runoff from construction sites without adequate erosion control measures can contribute to sediments, pesticides, fertilizers, and other pollutants to receiving waters.

As required by the Porter-Cologne Act, the Central Valley RWQCB has developed water quality objectives for waters within their jurisdiction to protect the beneficial uses of those waters and published them in their Basin Plan. The Basin Plan also establishes implementation programs to achieve these water quality objectives and requires monitoring to evaluate the effectiveness of these programs. Water quality objectives must comply with the state antidegradation policy (SWRCB 1968), which generally restricts the reduction of water quality of surface or ground waters even though such a reduction in water quality might still allow the protection of the beneficial uses associated with the water prior to the quality reduction. The Central Valley RWQCB intends to maintain this quality with enforcement of the water quality objectives summarized in Table 2. Central Valley RWQCB Water Quality Objectives for Inland Surface Waters (Central Valley RWQCB 2019).

Table 1. Central Valley RWQCB Water Quality Objectives for Inland Surface Waters Constituent Water Quality Objective
Bacteria
In waters designated REC-1, the fecal coliform concentration based on a minimum of not less than five samples for any 30-day period shall not exceed a geometric mean of 200/100 mL, nor shall more than 10 percent of the total number of samples taken during any 30-day period exceed 400/100 mL.

Biostimulatory
Substances
Water shall not contain biostimulatory substances in concentrations that promote aquatic growths to the extent that such growths cause nuisance or adversely affect beneficial uses.

Chemical
Constituents
Waters shall not contain chemical constituents in concentrations that adversely affect beneficial uses. At a minimum, water designated MUN shall not contain concentrations of chemical constituents in excess of the maximum contaminant levels specified in the following provisions of Title 22 of the California Code of Regulations, which are incorporated by reference into this plan: Tables 64431- A (Inorganic Chemicals) and 64431-B (Fluoride) of Section 64431, Table 64444-A (Organic Chemicals) of Section (Fluoride) of Section 64431, Table 64444-A (Organic Chemicals) of Section Consumer Acceptance Limits) and ITEM 9
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Constituent Water Quality Objective
64449-B (Secondary Maximum Contaminant Levels-Ranges) of Section 64449.

At a minimum, water designated for use as domestic or municipal supply (MUN) shall not contain lead in excess of 0.015 mg/l. (See below for specific chemical constituent objectives for specific water bodies.

Cryptosporidium and
Giardia
Waters shall not contain Cryptosporidium and Giardia in concentrations that adversely affect the public water system component1 of the MUN beneficial use. This narrative water quality objective for Cryptosporidium and Giardia shall be applied within the Sacramento-San Joaquin Delta and its tributaries below the first major dams and should be implemented as specified in Chapter 4 of the Basin Plan. Compliance with this objective will be assessed at existing and new public water system intakes.
1 Public water system as defined in Health and Safety Code, section 116275, subdivision (h)
Color Water shall be free of discoloration that causes nuisance or adversely affects beneficial uses.

Dissolved Oxygen
For surface water bodies outside the legal boundaries of the Delta, the monthly median of the mean daily dissolved oxygen concentration shall not fall below 85 percent of saturation in the main water mass, and the 95 percentile concentration shall not fall below 75 percent of saturation. The dissolved oxygen concentrations shall not be reduced below the following minimum levels at any time:
x Waters designated WARM 5.0 mg/l
x Waters designated COLD 7.0 mg/l
x Waters designated SPWN 7.0 mg/l
Floating Material Water shall not contain floating material in amounts that cause nuisance or adversely affect beneficial uses.

Oil and Grease
Waters shall not contain oils, greases, waxes, or other materials in concentrations that cause nuisance, result in a visible film or coating on the surface of the water or on objects in the water, or otherwise adversely affect beneficial uses.
pH The pH shall not be depressed below 6.5 nor raised above 8.5.

Pesticides
x No individual pesticide or combination of pesticides shall be present in concentrations that adversely affect beneficial uses.
x Discharges shall not result in pesticide concentrations in bottom sediments or aquatic life that adversely affect beneficial uses.
x Total identifiable persistent chlorinated hydrocarbon pesticides shall not be present in the water column at concentrations detectable within the accuracy of analytical methods approved by the Environmental Protection Agency or the Executive Officer.
x Pesticide concentrations shall not exceed those allowable by applicable antidegradation policies (see State Water Resources Control Board Resolution No. 68-16 and 40 CFR Section 131.12.).
x Pesticide concentrations shall not exceed the lowest levels technically and economically achievable.
x Waters designated for use as domestic or municipal supply (MUN) shall not contain concentrations of pesticides in excess of the Maximum Contaminant Levels set forth in California CFR, Title 22, Division 4, Chapter 15.

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Constituent Water Quality Objective
x Waters designated for use as domestic or municipal supply (MUN) shall not contain concentrations of thiobencarb in excess of 1.0 μg/l.

For the purposes of this objective, the term pesticide shall include: (1) any substance, or mixture of substances which is intended to be used for defoliating plants, regulating plant growth, or for preventing, destroying, repelling, or mitigating any pest, which may infest or be detrimental to vegetation, man, animals, or households, or be present in any agricultural or nonagricultural environment whatsoever, or (2) any spray adjuvant, or (3) any breakdown products of these materials that threaten beneficial uses. Note that discharges of “inert” ingredients included in pesticide formulations must comply with all applicable water quality objectives.

Radioactivity
Radionuclides shall not be present in concentrations that are deleterious to human, plant, animal, or aquatic life, nor which result in the accumulation of radionuclides in the food web to an extent that presents a hazard to human, plant, animal, or aquatic life. At a minimum, waters designated MUN shall not contain concentrations of radionuclides in excess of the maximum contaminant levels specified in Table 4 (MCL Radioactivity) of Section 64443 of Title 22, California Code of Regulations.

Salinity Electrical Conductivity (at 25°C) shall not exceed 150 micromhos/cm (90 percentile) in well-mixed waters of the Feather River.

Sediment
The suspended sediment load and suspended sediment discharge rate of waters shall not be altered in such a manner as to cause nuisance or adversely affect beneficial uses.

Settleable Material Waters shall not contain substances in concentrations that result in the deposition of material that causes nuisance or adversely affects beneficial uses.

Suspended Material Waters shall not contain suspended material in concentrations that cause nuisance or adversely affect beneficial uses.

Tastes and Odors
Waters shall not contain taste- or odor-producing substances in concentrations that cause nuisance, adversely affect beneficial uses, or impart undesirable tastes or odors to fish flesh or other edible products of aquatic origin or to domestic or municipal water supplies.

Temperature
Elevated temperature wastes shall not cause the temperature of waters designated COLD or WARM to increase by more than 5 degrees Fahrenheit above natural receiving water temperature. In determining compliance with the above limits, the Central Valley Regional Water Quality Control Board may prescribe appropriate averaging periods provided that beneficial uses will be fully protected.

Toxicity
All waters shall be maintained free of toxic substances in concentrations that produce detrimental physiological responses in human, plant, animal, or aquatic life. This objective applies regardless of whether the toxicity is caused by a single substance or the interactive effect of multiple substances. Compliance with this objective will be determined by analyses of indicator organisms, species diversity, population density, growth anomalies, biotoxicity tests of appropriate duration, or other methods as specified by the Central Valley Regional Water Quality Control Board.

Turbidity
Waters shall be free of changes in turbidity that cause nuisance or adversely affect beneficial uses. Increases in turbidity attributable to controllable water quality factors shall not exceed the following limits:

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Constituent Water Quality Objective
Where natural turbidity is less than 1 Nephelometric Turbidity Unit (NTU), controllable factors shall not cause downstream turbidity to exceed 2 Where natural turbidity is between 1 and 5 NTUs, increases shall not exceed 1 NTU.
x Where natural turbidity is between 5 and 50 NTUs, increases shall not exceed 20 percent.
x Where natural turbidity is equal to or between 50 and 100 NTUs, increases shall not exceed 10 NTUs.
x Where natural turbidity is greater than 100 NTUs, increases shall not exceed 10 percent.

In determining compliance with the above limits, appropriate averaging periods may be applied provided that beneficial uses will be fully protected.

Source: Central Valley RWQCB 2019
Under the Porter-Cologne Water Quality Control Act, the RWQCB is required to consider beneficial uses when instituting water quality objectives and described these beneficial uses as follows:
"Beneficial uses of the waters of the State that may be protected against quality degradation include, but are not necessarily limited to, domestic, municipal, agricultural, and industrial supply; power generation; recreation; aesthetic enjoyment; navigation; and preservation and enhancement of fish, wildlife, and other aquatic resources or preserves." The RWQCB separates beneficial uses into two categories: consumptive uses corresponding to reduction and/or depletion of water supply and non-consumptive uses not associated with significantly depleting water supplies. The RWQCB assigns beneficial uses for tributary streams based on the uses assigned to the named waterbody that the tributary connects with.
. Existing beneficial uses of surface waters within the “Colusa Basin Drain to I Street Bridge” which includes Arcade Creek and its associated tributaries are defined in Table 2 below:

Table 2. Existing and Potential Beneficial Uses
Beneficial
Use
Definition
MUN Uses of water for community, military, or individual water supply systems including, but not limited to, drinking water supply.

AGR Uses of water for farming, horticulture, or ranching including, but not limited to, irrigation (including leaching of salts), stock watering, or support of vegetation for range grazing.

REC-1
Uses of water for recreational activities involving body contact with water, where ingestion of water is reasonably possible. These uses include, but are not limited to, swimming, wading, water-skiing, skin and scuba diving, surfing, white water activities, fishing, or use of natural hot springs.

REC-2 Uses of water for recreational activities involving proximity to water, but where there is generally no body contact with water, nor any likelihood of ingestion of water. These ITEM 9
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Beneficial
Use
Definition
uses include, but are not limited to, picnicking, sunbathing, hiking, beachcombing, camping, boating, tidepool and marine life study, hunting, sightseeing, or aesthetic enjoyment in conjunction with the above activities.

WARM
Uses of water that support warm water ecosystems including, but not limited to, preservation or enhancement of aquatic habitats, vegetation, fish, or wildlife, including invertebrates.

COLD
Uses of water that support cold water ecosystems including, but not limited to, preservation or enhancement of aquatic habitats, vegetation, fish, or wildlife, including invertebrates
MIGR Uses of water that support habitats necessary for migration or other temporary activities by aquatic organisms, such as anadromous fish.

SPWN Uses of water that support high quality aquatic habitats suitable for reproduction and early development of fish.

WILD
Uses of water that support terrestrial or wetland ecosystems including, but not limited to, preservation and enhancement of terrestrial habitats or wetlands, vegetation, wildlife (e.g., mammals, birds, reptiles, amphibians, invertebrates), or wildlife water and food sources.

NAV Uses of water for shipping, travel, or other transportation by private, military, or commercial vessels.

Source: Central Valley RWQCB 2019
List of Impaired Waters
303(d) listed waters are a State’s list of impaired and threatened waters (e.g. stream/river segments, lakes). States are required to submit their list for EPA approval every two years. For each water on the list, the State identifies the pollutant causing the impairment, when known. In addition, the state assigns a priority for development of Total Maximum Daily Loads (TMDL) based on the severity of the pollution and the sensitivity of the uses to be made of the waters.

Arcade Creek within the Project area is 303(d) listed and considerations for TMDLs (Caltrans Water Quality Planning Tool, 2024) for the following:
• Bifenthrin
• Copper
• Fipronil Sulfone
• Malathion
• Permethrin
• Pyrethroids
• Toxicity
Total Maximum Daily Loads (TMDL)
ITEM 9
Water Quality Technical Memorandum
Water Quality Technical Memorandum 21
The Central Valley RWQCB assessed all readily available data for waters in the Central Valley Region. The 2020-2022 Integrated Report was adopted by the SWRCB on January 19, 2022, and approved by U.S. EPA on May 11, 2022 (SWRCB 2022). According to the 2020-2022 Integrated Report, Arcade Creek, which is located within the Project area, is included in the 303(d) list and considered a Category 5 waterbody. The criteria for Category 5 are the following: a water segment where standards are not met and a TMDL is required, but not yet completed, for at least one of the pollutants being listed for this segment. The pollutants listed for this segment, along with additional information, are included in Table 3. Arcade Creek 2020-2022 303(d) List below.

Table 3. Arcade Creek 303(d) List
Pollutant
Potential sources
Estimated
Area
Assessed
First
Year
Listed
TMDL
Requirement
Status*
Date**
Chlorpyrifos
Urban Runoff/Storm Sewers

9.9 miles 1998 5B 2004
Copper
A Source Unknown

9.9 miles 2002 5A 2021
Diazinon
Agriculture, Urban Runoff/Storm
Sewers

9.9 miles 1998 5B 2004
Malathion
Agriculture, Urban Runoff/Storm
Sewers

9.9 miles 2010 5A 2021
Pyrethroids
Urban Runoff/Storm Sewers

9.9 miles 2010 5A 2021
Sediment Toxicity
A Source Unknown

9.9 miles 2010 5A 2021
*TMDL requirement status definitions for listed pollutants are: A= TMDL still required **Dates relate to the TMDL requirement status, so a date for A= TMDL scheduled completion date, B= Date USEPA approved TMDL, and C= Completion date for action other than a TMDL Source: SWRCB 2022
Groundwater Quality Objectives/Standards and Beneficial Uses The key groundwater quality objective for the region is minimizing the contaminants reaching any groundwater basin. The goals are to control taste and odors, keep bacteriological, radioactive, chemical quality below the regulatory limits, and prohibit discharges of toxic wastes. Beneficial uses of groundwater in the Sacramento and San Joaquin River Basin Plan are considered as suitable or potentially suitable, at a minimum, for municipal and domestic supply (MUN), industrial service supply (IND), agriculture supply (AGR) and industrial process supply (PRO) (Central Valley RWQCB 2019).

ITEM 9
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Water Quality Technical Memorandum 22
4 ENVIRONMENTAL CONSEQUENCES

4.1 Potential Impacts to Water Quality
Project activities such as construction of the multi-use trail would create new impervious surfaces. This would result in an incremental reduction in the amount of natural soil surfaces available for infiltration of rainfall and runoff, potentially generating additional sediment runoff during storm events which could degrade the quality of receiving waters.

During storm events, sediment is transported via runoff to stormwater drainage systems.

Absent controls, contaminated runoff waters could flow into the stormwater drainage systems that discharge into rivers, agricultural ditches, sloughs, and channels and ultimately could degrade the water quality of any of these water bodies.

The project would result in an increase of approximately 0.47 acre of paved surface area, which would contribute to an increase in the volume of storm water runoff from the multiuse trail surface that could enter the drainage system and eventually the waterways within the project area. Impacts to water quality may result from sediment-laden storm water discharged into these waterways. Although the proposed trail would potentially increase storm water runoff as a result of additional impervious surfaces, the project would adhere to all applicable Phase I MS4 NPDES requirements regarding hydromodification. With the inclusion of permanent treatment control BMPs, as specified by Avoidance and Minimization Measure WQ-1 through WQ-4, long-term project impacts to water quality are anticipated to be minimal.

Construction of the project would necessitate permanent impacts of 0.01 acres and temporary impacts of 0.10 acre of jurisdictional waters of the U.S. and State to facilitate the installation of the gabion baskets to reinforce the bank of Arcade Creek (Figure 5).

The project anticipates acquiring a non-notifying USACE Nationwide 14 permit and a RWQCB Section 401 Water Quality Certification prior to the start of construction. A Section 1602 Streambed Alteration Agreement would also be acquired from the CDFW.

There is the potential for a negligible increase in drainage discharge into Arcade Creek which is 303(d) listed for pesticides and heavy metals, due to increased impervious surfaces from the multi-use trail. Avoidance and Minimization Measures WQ-1 through WQ-5 would be implemented to minimize potential impacts to water quality.

4.1.1 Long Term Impacts and Anticipated Changes to the Physical/Chemical Characteristics of the Aquatic Environment
Suspended Particulates (Turbidity)
The project is anticipated to include permanent treatment control BMPs per Avoidance and Minimization Measures WQ-1 through WQ-4. As a result, the project is not anticipated to produce long-term turbidity.

Oil, Grease and Chemical Pollutants
The proposed project is a multi-use trail for pedestrians and bicyclists. Runoff generated from increased impervious surfaces due to construction of the bike trail would primarily ITEM 9
Water Quality Technical Memorandum
Water Quality Technical Memorandum 23
consist of sediment from erosion and is not anticipated to contain oil, grease, or chemical pollutants. Further, with the inclusion of permanent treatment control BMPs, as specified by Avoidance and Minimization Measure WQ-1, project impacts to water quality would not be substantial.

Flood Control Functions
The proposed project is located within three zones: Zone X and Zone AE. Zone X signifies a minimal flood hazard area with a 0.2% annual chance of flooding. Zone AE designates areas that are within the 100-year base flood zone and have a 1% annual chance of flooding. A Location Hydraulic Study will be prepared to ensure the design of the crossing addresses flood control function.

4.1.2 Anticipated Changes to the Biological Characteristics of the Aquatic Environment
Project features adjacent to the wetland and drainage features are not anticipated to change the biological characteristics of the aquatic environment. Construction of the project would necessitate permanent impacts of 0.01 acres and temporary impacts of

0.10 acre of jurisdictional waters of the U.S. and State to facilitate the installation of the gabion baskets to reinforce the bank of Arcade Creek (Figure 5). The project anticipates acquiring a non-notifying USACE Nationwide 14 permit and a RWQCB Section 401 Water Quality Certification prior to the start of construction. A Section 1602 Streambed Alteration Agreement would also be acquired from the CDFW. Avoidance and Minimization Measures WQ-2 through WQ-4 are anticipated to minimize change to the biological characteristics of the aquatic environment.

4.1.3 Anticipated Changes to the Human Use Characteristics of the Aquatic Environment
Human uses, such as recreation navigation or conservation are not primary functions of the aquatic features within the study area. No changes to human uses would occur and the waterways would continue to convey water through the region.

Given the characteristics of this project, and the existing conditions of the waterways present, existing and potential water supplies, water conservation, recreation, navigation, and aesthetics are not likely to be negatively impacted as a result of the project.

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ITEM 9
Water Quality Technical Memorandum
Water Quality Technical Memorandum 25

4.1.4 Short Term Impacts During Construction
Construction-related earth-disturbing activities of the proposed project would introduce the potential for increased erosion and sedimentation, with subsequent effects on water quality and storm drain capacity. During site grading, trenching, and other construction activities, areas of bare soil would be exposed to erosive forces during rainfall events.

Bare soils are much more likely to erode than vegetated areas because bare areas lack dispersion, infiltration, and retention properties covering vegetation provides. Absent actions to minimize erosion, the extent of the impacts would be dependent on soil erosion potential, type of construction practice, extent of disturbed area, timing of precipitation events, and topography and proximity to drainage channels. In addition, construction equipment and activities would have the potential to leak hazardous materials, such as oil and gasoline, and potentially affect surface water or groundwater quality. Improper use or accidental spills of fuels, oils, and other construction-related hazardous materials, such as pipe sealant, solvents, and paints, could also pose a threat to the water quality of local water bodies. These potential leaks or spills, if not contained, would be considered a potentially significant impact on ground and surface water quality. Without precautions to contain or capture sediments or accidental hazardous spills, construction activities could produce substantial pollutants in stormwater runoff and result in a significant impact on the existing surface water quality. The proposed project would implement WQ-1 through WQ-4 to minimize construction-related impacts.

4.2 Cumulative Impacts
The Project would not result in a cumulatively considerable contribution to water quality impacts. The multi-use trail segment was previously planned and programmatically evaluated as part of the City’s 2015 Bikeway Master Plan, which anticipated incremental trail improvements throughout the City, including trail upgrades within greenbelt corridors such as Arcade Creek. As such, the Project represents an implementation-level component of an adopted planning framework rather than a new or unanticipated source of water quality effects.

Although construction would introduce approximately 0.47 acre of new impervious surface and involve temporary ground disturbance and vegetation removal, these effects would be short-term and localized. Standard construction activities have the potential to generate sediment during rainfall events; however, these effects are common to many public infrastructure projects and are adequately controlled through compliance with applicable City and state stormwater regulations.

The Project includes a gabion basket retaining wall along an actively eroding reach of Arcade Creek, which would stabilize the bank and reduce existing sediment inputs to the creek. Permanent impacts associated with the gabion baskets would be limited to approximately 0.01 acre, with temporary impacts of approximately 0.10 acre related to construction access. The prefabricated bridge crossing would be installed without dewatering or in-channel work, and all abutments would be located outside the ordinary ITEM 9
Water Quality Technical Memorandum
Water Quality Technical Memorandum 26
high water mark of the Arcade Creek tributary, avoiding direct disturbance to aquatic resources.

The Project would be required to comply with standardized City and state water quality and stormwater best management practices as well as project-specific avoidance and minimization measures (WQ-1 through WQ-4). These measures include erosion and sediment controls, stabilization of exposed soils, and debris management, which collectively ensure that sedimentation and pollutant discharges are minimized during construction and operation.

When considered in combination with other past, present, and reasonably foreseeable projects in the Arcade Creek watershed, the Project’s contribution to cumulative water quality impacts would be minimal. The limited extent of new impervious surface, absence of in-channel work, incorporation of bank stabilization, and adherence to regulatory BMPs ensure that any incremental effects would not be cumulatively considerable.

ITEM 9
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Water Quality Technical Memorandum 27
5 AVOIDANCE, MINIMIZATION, AND/OR MITIGATION MEASURES
WQ-1: The proposed project will require a National Pollution Discharge Elimination System (NPDES) General Construction Permit for Discharges of storm water associated with construction activities (Construction General Permit 2022-0057- DWQ). As part of this Permit requirement, a SWPPP shall be prepared prior to construction consistent with the requirements of the RWQCB. This SWPPP will incorporate all applicable BMPs to ensure that adequate measures are taken during construction to minimize impacts to water quality.

WQ-2: To conform with water quality requirements, the SWPPP must include the following:
x Vehicle maintenance, staging and storing equipment, materials, fuels, lubricants, solvents, and other possible contaminants must be a minimum of 50 feet from surface waters. Any necessary equipment washing must occur where the water cannot flow into surface waters.
x The project specifications will require the contractor to operate under an approved spill prevention and clean-up plan;
x Construction equipment will not be operated in flowing water; x Construction work must be conducted according to site-specific construction plans that minimize the potential for sediment input to surface waters; x Raw cement, concrete or concrete washings, asphalt, paint or other coating material, oil or other petroleum products, or any other substances that could be hazardous to aquatic life must be prevented from contaminating the soil or entering surface waters;
x Equipment used in and around surface waters must be in good working order and free of dripping or leaking contaminants; and,
x Any concrete rubble, asphalt, or other debris from construction must be taken to an approved disposal site.

WQ-3: Prior to the start of construction activities, the project limits in proximity to jurisdictional waters must be marked with high visibility Environmentally Sensitive Area (ESA) fencing or staking to ensure construction will not further encroach into jurisdictional waters.

WQ-4: Contract specifications will include the following Best Management Practices (BMPs), where applicable, to reduce erosion during construction:
x Existing vegetation will be protected in place where feasible to provide an effective form of erosion and sediment control;
x As a permanent BMP, slope roughening by equipment tracking will be implemented to create unevenness on bare soil. Surface roughening reduces erosion potential by decreasing runoff velocities, trapping sediment, and increasing water infiltration.

ITEM 9
Water Quality Technical Memorandum
Water Quality Technical Memorandum 28
6 REFERENCES

6.1 Works Cited
CalFish 2025. California Fish Passage Assessment Database (PAD). Map Viewer Data Access updated November 26, 2025. Available at:
https://www.calfish.org/ProgramsData/HabitatandBarriers/CaliforniaFishPassage AssessmentDatabase.aspx (accessed 12/24/2025).

Caltrans 2025. California Department of Transportation. 2025. Water Quality Planning Tool. Available at: https://svctenvims.dot.ca.gov/wqpt/wqpt.aspx (accessed 12/23/2025).

CDFW 2025. California Department of Fish and Wildlife. October 2025. Biogeographic Information and Observation System (BIOS) Habitat Connectivity Viewer.

Available at: https://wildlife.ca.gov/Data/BIOS (accessed 10/31/2025).

Central Valley RWQCB 2019. Regional Water Quality Control Board. February 2019.

Basin Plan for the California Regional Water Quality Control Board Central Valley Region. Available at:
https://www.waterboards.ca.gov/centralvalley/water_issues/basin_plans/sacsjr_2 01902.pdf (accessed 12/24/2025).

Central Valley RWQCB 2016. Regional Water Quality Control Board. November 23, 2016.

General Permit for Discharges from Municipal Separate Storm Sewer Systems, ORDER R5-2016-0040. Available at:
https://www.waterboards.ca.gov/centralvalley/board_decisions/adopted_orders/g eneral_orders/r5-2016-0040/r5-2016-0040-004_010.pdf (accessed 12/24/2025).

City of Citrus Heights 2025. City of Citrus Heights General Plan April 2, 2025: ArcGIS Online Data. Available at:
https://services8.arcgis.com/F2vUxnlx169smga0/arcgis/rest/services/GeneralPla nLandUse/FeatureServer (accessed 1/7/2026).

City of Citrus Heights 2011a. City of Citrus Heights General Plan Chapter 4: Community Health. August 2011. Available at:
https://www.citrusheights.net/DocumentCenter/View/247/Chapter-4-CommunityHealth-PDF?bidId= (accessed 12/24/2025).

City of Citrus Heights 2011b. City of Citrus Heights Environmental Impact Report (EIR) Chapter 4.5: Water Resources. August 2011. Available at:
https://www.citrusheights.net/DocumentCenter/View/280/Chapter-45-WaterResources-PDF?bidId= (accessed 12/24/2025).

City of Sacramento 2018. Stormwater Quality Design Manual. July 2018. Available at:
https://www.cityofsacramento.gov/content/dam/portal/dou/utilities/developmentstandards/SWQ_Design_Manual_FINAL2018.pdf (accessed 12/24/2025).

City of Sacramento 2003. City of Sacramento, Department of Parks and Recreation Arcade Creek Watershed Plan. June 26, 2003 Available at:
https://saccreeks.org/wp-content/uploads/2016/11/Arcade-Creek-WatershedPlan-Final-Jul-2003-reduced.pdf (accessed 10/31/2025).

ITEM 9
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County of Sacramento 1996. Sacramento County Drainage Manual. Volume 2: Hydrology Standards. December 1996.Available at:
https://waterresources.saccounty.gov/us/en/drainage/drainage-manual-volume2.html#gsc.tab=0 (accessed 12/24/2025).

DMP 2025. City of Citrus Heights Drainage Master Plan April 22, 2025. Available at:
https://www.citrusheights.net/447/Drainage-Master-Plan (accessed 12/24/2025).

Jones & Stokes 2007. Existing Conditions and Assessment Report and Stream Corridor Management Plan for the Arcade Creek Watershed, Sacramento County, California. Draft. October 2007. (J&S 06766.06.) Sacramento, CA. Prepared for:

City of Sacramento, Department of Utilities in coordination with State Water Resources Control Board.

Jepson 2025. Jepson Flora Project (eds.). October 2025. Jepson eFlora. https://ucjeps.berkeley.edu/eflora/ (accessed 10/31/25).

Lichvar, R.W. & McColley, S.M. 2008. A Field Guide to the Identification of the Ordinary High Water Mark (OHWM) in the Arid West Region of the Western United States.

United States Army Engineer Research and Development Center, Hanover, New Hampshire.

NES 2025. Arcade-Cripple Creek Trail (Sylvain Road to Stock Ranch) Extension Project Natural Environment Study December 2025.

NOAA 2025 National Oceanic and Atmospheric Administration (NOAA). November 2025.

Habitat Conservation Essential Fish Habitat View Tool for Chinook Salmon.

Available at: https://www.habitat.noaa.gov/apps/efhmapper/ (accessed 11/5/2025).

NRCS 2025. Natural Resource Conservation Service. October 2025. Custom Soil Resources Report for Sacramento County, California. Available at:
https://websoilsurvey.sc.egov.usda.gov/App/HomePage.htm (accessed 10/10/25).

NPDES 2026. National Pollutant Discharge Elimination System General Permit for Stormwater Discharges Associated with Construction and Land Disturbance Activities (General Permit) Attachment D.1. Risk Determination Worksheet.

January 2026. Available at:
https://www.waterboards.ca.gov/water_issues/programs/stormwater/construction/ docs/2022-0057-dwq-with-attachments/cgp2022_att_d1.pdf (accessed 1/8/2025).

PFMC 2014. Pacific Fishery Management Council. September 2014. Appendix A to the Pacific Coast Salmon Fishery Management Plan. Available at:
https://www.pcouncil.org/documents/2019/08/salmon-efh-appendix-a.pdf/ (accessed 11/5/2025).

SWRCB 2022. State Water Resources Control Board. May 11, 2022. California Water Boards State Water Resources Control Board 2020-2022 California Integrated Report 303 (d) List Category 5 Waterbody Segments. Available at:
https://www.waterboards.ca.gov/water_issues/programs/water_quality_assessm ent/2020_2022_integrated_report.html (accessed 12/24/25).

ITEM 9
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Water Quality Technical Memorandum 30
SWRCB 1968. State Water Resources Control Board. October 28, 1968. California Water Boards State Water Resources Control Board Resolution No. 68-16 Statement of Policy with Respect to Maintaining High Quality of Waters in California. Available at:
https://www.waterboards.ca.gov/board_decisions/adopted_orders/resolutions/19 68/rs68_016.pdf (accessed 12/24/25).

SWRCB 2017. State Water Resources Control Board. October 9, 2017. Area of Special Biological Significance. Available at:
https://www.waterboards.ca.gov/water_issues/programs/ocean/asbs_map.shtml (accessed 12/24/25).

USACE 1987. Corps of Engineers Wetlands Delineation Manual. Environmental Laboratory, Vicksburg, Mississippi. Available at:
https://usace.contentdm.oclc.org/digital/collection/p266001coll1/id/4532/ (accessed 12/24/2025).

USACE 2008. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Arid West Region (Version 2.0). United States Army Engineer Research and Development Center, Vicksburg, Mississippi. Available at:
https://usace.contentdm.oclc.org/utils/getfile/collection/p266001coll1/id/7627 (accessed 12/24/2025).

U.S. Census Data 2024. United States Census Bureau. July 1, 2024. Citrus Heights, CA Quick Facts. Available at:
https://www.census.gov/quickfacts/fact/table/citrusheightscitycalifornia/PST04522 4 (accessed 12/24/25).

U.S. Climate Data 2025. United States Climate Data. October 2025. Sacramento, CA Weather Averages. Available at: https://www.usclimatedata.com (accessed 10/31/25).

6.2 Preparer(s) Qualifications
Amy Bakker, B.S. in Environmental Science, 15 years of experience in environmental analysis.

Dorienne Mendoza, B.S. in Conservation and Resource Studies, Area of Interest in Sustainable Land Development, 8 years of experience in environmental analysis.

ITEM 9

APPENDIX A NRCS SOIL SURVEY

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17.5 Effective LOMRsWater Surface ElevationCoastal TransectBase Flood Elevation Line (BFE)Limit of StudyJurisdiction BoundaryCoastal Transect BaselineProfile BaselineHydrographic FeatureDigital Data Available No Digital Data Available
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ITEM 9

DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT APPENDIX G: Community Impact Assessment
Memorandum

ITEM 9
Arcade-Cripple Creek Trail CIA
(Sylvan Road to Stock Ranch) Extension Project

Community Impact Assessment Memorandum
Arcade-Cripple Creek Trail (Sylvan to Stock Ranch) Extension Project City of Citrus Heights, Sacramento County, California
District 3–SAC
CRP 5475 (053)
March 2026

STATE OF CALIFORNIA
ITEM 9
Community Impact Assessment
Community Impact Assessment Memorandum
Arcade-Cripple Creek Trail (Sylvan to Stock Ranch) Extension Project City of Citrus Heights, Sacramento County, California
District 3–SAC
CRP 5475 (053)
March 2026

STATE OF CALIFORNIA
Prepared By: ____________________________________ Date: __3/24/26___ Amy Bakker, Senior Environmental Planner
Dokken Engineering
110 Blue Ravine Rd, 200
Folsom, CA, 95630
(916) 858-0642
Reviewed By: ____________________________________ Date: ___________ Daniel Kehrer, Principal Civil Engineer
(916) 727-4770
City of Citrus Heights General Services Department
6360 Fountain Square Drive
Citrus Heights CA 95621
Approved By: ____________________________________ Date: ___________ Caitlin Greenwood, Associate Environmental Planner
District 3 North Region Local Assistance
Statement of Compliance: Produced in compliance with National Environmental Policy Act (NEPA) and California Environmental Quality Act (CEQA) requirements, as appropriate, to meet the level of analysis and documentation that has been determined necessary for this project.

ITEM 9
Community Impact Assessment
CIA 3 February 2026

INTRODUCTION
This memorandum discusses land use and community impacts from implementation of the proposed Arcade-Cripple Creek Trail (Sylvan to Stock Ranch) Extension Project (Project) in the City of Citrus Heights, Sacramento County, California. This memorandum considers how the proposed Project will affect the people, institutions, neighborhoods, communities, organizations, and larger social and economic systems.

PROJECT DESCRIPTION
The City of Citrus Heights proposes to construct a 0.5-mile addition to the planned 16- mile Creek Corridor Trail Project (CCTP) as part of the Arcade-Cripple Creek Trail (Sylvan to Stock Ranch) Extension Project (Project) (Appendix A. Figure 1. Project Location; Figure 2. Project Vicinity). The Project is funded through the federal Carbon Reduction Program and therefore requires compliance with both the National Environmental Policy Act (NEPA) and the California Environmental Quality Act (CEQA). The lead agency for CEQA compliance is the City of Citrus Heights and the federal lead agency for NEPA compliance is the California Department of Transportation (Caltrans).

Proposed facilities include a paved trail, a new prefabricated bridge across the unnamed creek tributary, solar lighting, bank protection along a segment of Arcade Creek, and an at-grade signalized pedestrian crossing at Sylvan Road (Appendix A. Figure 3. Project Features). Construction activities will involve grading to achieve ADA-compliant slopes, installing the creek crossing, paving the trail, erecting the solar lighting, constructing bank protection, and adding pedestrian signal infrastructure with minor utility adjustments as needed.

Construction access will be provided primarily through the Walmart parking lot under a TCE, as well as a permit to enter for access from the Huntington Square Apartments parcel. These provisions will allow safe and efficient construction of the trail and its associated improvements.

ITEM 9
Community Impact Assessment
CIA 4 February 2026

AFFECTED ENVIRONMENT
The Arcade-Cripple Creek Trail is part of a 16-mile trail network identified in the City of Citrus Heights’ CCTP. Planned since 2012, the Creek Corridor Trail is being built segment by segment, starting with 4.2 miles of Priority 1 trails identified in the Creek Corridor Trail Project Feasibility Study. To advance the vision of using the natural Arcade Creek greenbelt as a recreational resource and to enhance connectivity between communities, the City of Citrus Heights, in partnership with the Sunrise Recreation & Park District, is proposing to construct the 0.5-mile Priority 1 trail segment from Sylvan Road to Stock Ranch. Currently, the trail includes dirt paths through the Stock Ranch Nature Preserve and narrow concrete paths through the Huntington Square apartments. This Project will upgrade these sections to a paved, ADA-compliant Class I multi-use trail, bringing the Priority 1 trail network over 10% closer to completion and providing safe, accessible connections between communities.

The Project is located west of Sylvan Road within the City of Citrus Heights in Sacramento County, California, within the Citrus Heights 7.5-minute U. S. Geological Survey (USGS) quadrangle. Sylvan Road is a north-south arterial from Sylvan Corners (e.g., the Auburn Boulevard/Old Auburn Road/Sylvan Road intersection) to Greenback Lane and has a posted 40 mph speed limit with two lanes in each direction separated by a center left-turn lane.

Existing land use designations include General Commercial (Costco and Walmart), Open Space (Arcade Creek and Stock Ranch Nature Preserve), low density residential, and medium density residential. (Appendix A. Figure 4. Land Use Designations and Figure

5. Zoning Districts) (City of Citrus Heights 2022). Additionally, according to Title 106.20 of the City of Citrus Heights Zoning Code, the Project area occurs within several different zoning districts including “RD-5” Low Density Residential, “RD-20” Medium Density Residential, “SPA” Special Planning Area (City of Citrus Heights 2025a and City of Citrus Heights 2025b). Table 1. Zoning Designation within the Project Area below provides an overview of the zoning designations applicable to the parcels within the Project area, along with corresponding descriptions for each.

Table 1. Zoning Designations within the Project Area
Zoning
District
Symbol
Zoning
District /
General Plan
Land Use
Designation
Zoning Descriptions
RD-5 Low Density
Residential
The RD-5 district is applied to areas appropriate for detached single dwellings, duplexes in specified circumstances, and related, compatible uses. The RD-5 zoning district is consistent with and implement the Low Density Residential land use designation of the City of Citrus Heights General Plan (General Plan).

RD-20 Medium
Density
Residential
The RD-20 district is applied to areas appropriate for a variety of housing types, including small-lot single dwellings, and various types of multi-unit housing (for example, duplexes, triplexes, and apartments). The RD-20 ITEM 9
Community Impact Assessment
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zoning district is consistent with and implements the Medium Density Residential land use designation of the General Plan.

SPA Special
Planning Area
The SPA zoning district is intended to provide for flexibility in the application of Zoning Code standards to proposed development under limited and unique circumstances. The purpose is to allow consideration of innovation in site planning and other aspects of project design, and more effective design responses to site features, uses on adjoining properties, and environmental impacts than the Zoning Code standards would produce without adjustment. The City of Citrus Heights expects each project within a Special Planning Area to be of obvious, significantly higher quality than would be achieved through conventional design practices and standards.

Source: City of Citrus Heights 2025b
The Project is located in Census Tract 81.36 (west of Sylvan Road) and 81.41 (east of Sylvan Road). The following table provides a comparison of key demographic data, including age, economic status, and race, between Census Tracts 81.6 and 81.41, City of Citrus Heights, and Sacramento County. The City of Citrus Heights and Sacramento County have a notably higher percentage of residents aged 65 and older compared to Census Tracts 81.36 and 81.41. The same trend can be seen in terms of income, both for the median and average household incomes. Additionally, there are no clear trends regarding the proportion of minority populations when comparing the demographic information in the two census tracts with the City of Citrus Heights and Sacramento County.

Table 2. Demographics
Subject Census
Tract 81.36
Census
Tract 81.41
City of Citrus
Heights
Sacramento
County
65 years and over 16.8% 11.0% 18.2% 18.2%
Median Household Income $70,648 $63,537 $91,036 $94,087 Mean Household Income $77,291 $75,279 $104,046 $119,881 Race
White 81.5% 62.7% 71.7% 59.6%
Black or African American 0.8% 6.7% 3.0% 10.6%
American Indian and Alaska Native 0.8% 1.1% 0.9% 1.6%
Asian 4.7% 2.6% 4.4% 19.4%
Native Hawaiian or Other Pacific
Islander

1.1% 0.0% 0.4% 1.4%
Some Other Race 3.7% 21.0% 8.3% 0.0%
Two or More Races 7.5% 5.9% 11.3% 7.4%
Source: U.S. Census Bureau 2024
Income in the Past 12 Months (in 2024 Inflation-Adjusted dollars); 2023 ACS 5-year Estimates There will be impacts to up to four parcels within / adjacent to the Project area. The impacts include permanent easements, PTEs, and TCEs which are identified in Table 3.

Property Ownership and Right-of-way Parcel Needs with the Project Area below.

A permanent easement and PTE will be needed from Sunrise Recreation & Park District.

The City of Citrus Heights currently has a permanent easement at the Huntington Square ITEM 9
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Apartments, which may need to be modified for construction of the proposed trail. A TCE will be needed from Walmart to allow for construction access through their property.

Appendix A. Figure 6. Potential Right-of-Way.

Table 3. Property Ownership and Right-of-Way Parcel Needs within the Project Area
Assessor
Parcel
Number
Property Owner Property Address Property Needs
211-
0280-
004-0000
Hunting Square Limited LP 7311 Huntington Square
Lane,
Citrus Heights, CA 95621
Modification to an
existing Permanent
Easement and permit
to enter (PTE)
211-
0870-
002-0000
Wal Mart Real Estate BSNS
Trust
7010 Auburn Blvd.

Citrus Heights, CA 95621
Temporary
Construction
Easement (TCE)
211-
0870-
013-0000
Sunrise Recreation & Park
District
Auburn Blvd.

Citrus Heights, CA 95621
Permanent
Easement and PTE
211-
0870-
014-0000
Sunrise Recreation & Park
District
Auburn Blvd.

Citrus Heights, CA 95621
Permanent
Easement and PTE
During construction, partial road closures may be required, and a traffic management plan will be prepared. Utility coordination may be required from some utilities; however, the service will not be disrupted.

ENVIRONMENTAL CONSEQUENCES
Community Character and Cohesion
The proposed Project is not expected to result in any significant long-term adverse effects on the community. Community cohesion would remain similar to the existing as the Project does not create a barrier that divides the neighborhood or limits access. A portion of Stock Ranch Nature Preserve is within the Project area; however, it will not be impacted by Project activities and access to the nature preserve will remain open throughout construction. The addition of the trail along Arcade Creek will enhance connectivity and mobility for residents who walk or bike to the nature preserve and connect with other trails within the City of Citrus Heights. Additional community facilities, such as schools, bus stops, community centers, or religious institutions, are not in the Project area and would not be affected. The Project is not anticipated to impact growth, economics, affordable housing, or crime in the Project area. There is potential for security concerns among residents of the Huntington Square Apartments, and to minimize concerns, an outreach and engagement plan (see Measure LU-1) will be prepared by the City of Citrus Heights to ensure community needs and concerns are addressed.

The proposed Project is anticipated to benefit the community by enhancing pedestrian and bicycle infrastructure. The Project addresses the current lack of accessible pedestrian and bicycle facilities, which limits multi-modal transportation and access to key recreational and commercial areas. The region experiences traffic due to commercial businesses (Costco and Walmart) and recreational activities associated with the Stock ITEM 9
Community Impact Assessment
CIA 7 February 2026
Ranch Nature Preserve, creating a need for enhanced infrastructure to improve mobility for non-motorized users. Completing the overall CCTP will allow multi-modal transportation access throughout the City of Citrus Heights. The proposed Project will meet this need by providing a paved trail, a new prefabricated bridge across the unnamed creek tributary, solar lighting, and an at-grade signalized pedestrian crossing at Sylvan Road.

Census data indicates that Census Tracts 81.36 and 81.41 have lower income levels compared to the City of Citrus Heights and Sacramento County as a whole. The addition of the trail will provide bicyclists and pedestrians from across the City of Citrus Heights with access along Arcade Creek. By improving pedestrian and bicycle connectivity, the Project is designed to align with the region's long-term vision to provide multi-modal access to key commercial and recreational facilities, improving overall mobility within the area.

Partial road closures will be required during construction of the Project. Given the shortterm and intermittent nature of the construction activities, the impact on the community is expected to be minimal. As part of the Project, Measure LU-2 will be implemented, and a traffic management plan will be developed prior to construction to minimize any disruption to local traffic.

The proposed Project will require permanent easements, PTEs, and TCEs from properties where the trail passes through. No full acquisitions are anticipated. All work will remain within City ROW and no private parcels will require any acquisition or TCE.

Land Use
The proposed Project is consistent with the General Plan as the existing roadway classification for Sylvan Road will remain unchanged and the zoning and/or land use designations for adjacent areas will not be changed. After the City of Citrus Heights’ incorporation on January 1, 1997, the City of Citrus Heights Bikeway Master Plan includes this area as a proposed Class I bike lane, with the CCTP identifying 16 miles of feasible trail segments throughout the City of Citrus Heights including Arcade Creek, Brooktree Creek, Cripple Creek, and the SMUD utility Corridor (City of Citrus Heights 2015). The creek corridors are adjacent to residential and commercial areas which allow for increased connections and mobility options, including through natural areas. One of the goals of the General Plan is to “establish a system of creek side trails, passive open space and parks for public use.” CCTP will allow for a framework to meet this goal and create multi-use trails within the creek and SMUD utility corridors (City of Citrus Heights 2025c).

There is also no prime farmland within or adjacent to the Project area that could be impacted by the Project (California Department of Conservation 2025). The Project would not result in land use changes that conflict with the General Plan or other relevant City of Citrus Heights plans (such as the Pedestrian Master Plan, Bikeway Master Plan, Safe Routes to School Master Plan, or ADA Master Plan).

Right-of-Way
Four parcels are expected to be impacted on a permanent (after construction) and/or temporary (during construction) basis as a result of the project. The Stock Ranch Nature Preserve will require a permanent easement and PTE. The Huntington Square ITEM 9
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CIA 8 February 2026
Apartments may require modification of an existing permanent easement and a PTE. A TCE will be needed from Walmart.

Utilities
Utility coordination may be required for a few utilities; however, the service will not be disrupted.

CONCLUSION
Overall, the proposed Project is anticipated to benefit the community by enhancing pedestrian infrastructure along Sylvan Road, which will improve the mobility along the creek corridors. The area surrounding the Project has land use designations of General Commercial, Open Space, Low Density Residential, and Medium Density Residential which includes the Stock Ranch Nature Preserve, Arcade Creek, residential communities, and residential homes. The proposed Project is consistent with the General Plan, with no changes to zoning and/or land use designations for adjacent areas will be required.

The proposed Project will require permanent easements, PTEs, and TCEs, including partial road closures during construction. To minimize potential traffic disruptions, Measure LU-2 will be implemented by development of a traffic management plan prior to construction. The Project’s overall community impact is expected to be minimal and temporary with implementation of the measures listed below.

ITEM 9
Community Impact Assessment
CIA 9 February 2026

AVOIDANCE, MINIMIZATION AND/OR MITIGATION MEASURES
The following avoidance, minimization, and mitigation measures will ensure no impacts to land use or community occur as a result of the proposed Project:

LU-1: An outreach and engagement plan will be developed to ensure potential security concerns from residents of the Huntington Square Apartments are identified and addressed prior to construction.

LU-2: A Traffic Management Plan will be prepared to identify ways to minimize impacts to the public during partial road closures anticipated during construction.

REFERENCES
California Department of Conservation. 2025. California Important Farmlands Finder.

Available at:
<https://maps.conservation.ca.gov/dlrp/ciff/> (accessed 12/15/2025).

City of Citrus Heights. 2014. City of Citrus Heights Creek Corridor Trail Project Feasibility Report (accepted
by City Council March 27, 2014). Available at: < https://saccreeks.org/wpcontent/uploads/2016/11/Feasibility-Report-PDF_201406301205451694-CitrusHeights.pdf (accessed 12/17/2025).

City of Citrus Heights. 2015. City of Citrus Heights Bikeway Master Plan. Available at:
< https://citrusheights.net/DocumentCenter/View/4246/Bikeway-Master-Plan2015Council-Approved121015?bidId= (accessed 12/17/2025).

City of Citrus Heights. 2020. City of Citrus Heights General Plan Adopted August 11, 2011; Updated August
2020; Resolution 2018-096 Land Use Map Change. Available at:
<https://www.citrusheights.net/202/General-Plan> (accessed 12/19/2025).

City of Citrus Heights. 2022. City of Citrus Heights General Plan Land Use Map. Available at:
<https://www.citrusheights.net/DocumentCenter/View/245/Chapter-2-CommunityDevelopment-PDF?bidId=> (accessed 12/15/2025).

City of Citrus Heights. 2025a. GIS Data Download. Available at:
<https://services1.arcgis.com/5NARefyPVtAeuJPU/arcgis/rest/services/GeneralP lan/FeatureServer > (accessed 12/16/2025).

ITEM 9
Community Impact Assessment
CIA 10 February 2026
City of Citrus Heights. 2025b. City of Citrus Heights Zoning Code, Effective November 6, 2006; Updated
July 2025. Citrus Heights Municipal Code. Title 106 – Zoning Code. Available at:
<https://www.citrusheights.net/243/Zoning-Code> (accessed 12/19/2025).

City of Citrus Heights. 2025c. Creek Corridor Trail Project. Available at:
<https://www.citrusheights.net/546/Creek-Corridor-Trail-Project> (accessed 12/22/2025).

U.S. Census Bureau. 2024. Data retrieved from American Community Survey, 5-year Estimate. Available
at: <https://data.census.gov/table?q=city+of+citrus+heights,+california> (accessed 12/22/2025).

ITEM 9
Appendix A. Figures
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ITEM 9

DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT APPENDIX H: Noise Technical Memorandum

ITEM 9
Arcade-Cripple Creek Trail NTM
(Sylvan Road to Stock Ranch) Extension Project

Noise Technical Memorandum
Arcade-Cripple Creek Trail (Sylvan to Stock Ranch) Extension Project City of Citrus Heights, Sacramento County, California
District 3–SAC
CRP 5475 (053)
March 2026

STATE OF CALIFORNIA
ITEM 9
Noise Technical Memorandum
Noise Technical Memorandum
Arcade-Cripple Creek Trail (Sylvan to Stock Ranch) Extension Project City of Citrus Heights, Sacramento County, California
District 3 – SAC
CRP– 5475 (053)
March 2026

STATE OF CALIFORNIA
Prepared By: ____________________________________ Date: ___3/24/26__ Ken Chen, Environmental Planner
Dokken Engineering
110 Blue Ravine Rd, #200
Folsom, CA, 95630
(916) 858-0642
Reviewed By: ____________________________________ Date: ___________ Daniel Kehrer, Principal Civil Engineer
(916) 727-4770
City of Citrus Heights General Services Department
6360 Fountain Square Drive
Citrus Heights CA 95621
Approved By: ____________________________________ Date: ___________ Caitlin Greenwood, Associate Environmental Planner
District 3 North Region Local Assistance
Statement of Compliance: Produced in compliance with National Environmental Policy Act (NEPA) and California Environmental Quality Act (CEQA) requirements, as appropriate, to meet the level of analysis and documentation that has been determined necessary for this project.
(916) 858-0642
______________________________
Daniel Kehrer Principal Civil Enginee
3/25/26
g
_______________________
Caitlin Greenwood Associat
4/14/2026
ITEM 9
Noise Technical Memorandum
NTM 1 March 2026

INTRODUCTION
This memorandum discusses temporary (including short-term and intermittent) construction-related noise impacts from implementation of the Arcade-Cripple Creek Trail (Sylvan to Stock Ranch) Extension Project in the City of Citrus Heights, Sacramento County, California.

PROJECT DESCRIPTION
The City of Citrus Heights (City) proposes to construct a 0.5-mile addition to the planned 16-mile Creek Corridor Trail Project (CCTP) as part of the Arcade-Cripple Creek Trail (Sylvan to Stock Ranch) Extension Project (Project) (Appendix A. Figure 1. Project Vicinity; Figure 2. Project Location). The Project is funded through the federal Carbon Reduction Program and therefore requires compliance with both the National Environmental Policy Act (NEPA) and the California Environmental Quality Act (CEQA).

The lead agency for CEQA compliance is the City of Citrus Heights and the federal lead agency for NEPA compliance is the California Department of Transportation (Caltrans).

The Project is located in the City of Citrus Heights and will extend east from the existing Stock Ranch Trail behind the Costco/Walmart shopping center, also known as the Stock Ranch Retail Center, to Sylvan Road. The proposed alignment begins south of the Walmart property boundary and proceeds east through the Stock Ranch Nature Preserve, curving south around Walmart’s water quality detention basin. The alignment continues north, crossing a tributary of Arcade Creek and passes south of the Huntington Square Apartments connecting to Sylvan Road. The alignment terminates east of Sylvan Road at the location of a planned future trail extension segment from Sylvan Road to Mariposa Avenue. The Project has independent utility and would function as a stand-alone improvement.

Project Features). Construction activities will involve grading to achieve ADA-compliant slopes, installing the creek crossing, paving the trail, erecting the solar lighting, constructing bank protection, and adding pedestrian signal infrastructure with minor utility adjustments as needed.

To accommodate construction, partial right-of-way (ROW) acquisitions will be required from several parcels. These include a permanent easement and permit to enter (PTE) from the Sunrise Recreation & Park District and a temporary construction easement (TCE) from Walmart. An existing rail easement exists across the Hunting Square Apartments property and there is potential for permanent easement to be modified to best incorporate the trail alignment with the physical site features.

Construction access will be provided primarily through Walmart parking lot under a TCE, as well as PTE for access from the Hunting Square Apartments parcel. These provisions will allow safe and efficient construction of the rail and its associated improvements.

Construction is anticipated to start in 2027 and last approximately 6 months.

ITEM 9
Noise Technical Memorandum
NTM 2 March 2026

PROJECT PURPOSE
The purpose of this Project is to construct one of the several planned segments of the CCTP by replacing dirt and narrow concrete paths with an ADA-compliant Class I multiuse trail.

PROJECT NEED
This trail extension is needed to enhance pedestrian and bicycle connectivity, provide a safe recreational facility, and improve access through the Arcade Creek greenbelt.

NO-BUILD ALTERNATIVE
The No-Build Alternative would result in no paved trail extension from Sylvan Road to Stock Ranch, leaving a remaining gap in the Arcade-Cripple Creek trail system, and users would continue to traverse through dirt and narrow concrete paths that are not ADA-compliant.

NOISE SETTING
In accordance with the Caltrans Environmental Handbook guidelines, noise is defined as unwanted sound. Sound levels usually are measured and expressed in decibels (dB), with 0 dB being the threshold of hearing. Decibel levels range from 0 to 140: 50 dB for light traffic is considered a low decibel level, whereas 120 dB for a jet takeoff at 200 feet (ft.) is considered a high decibel level.

Under the Caltrans Traffic Noise Analysis Protocol 2020, projects other than Type 1 require an evaluation of predicted construction noise. The Project is not a Type 1 project as defined in 23 CFR 772.5(h); “construction of a highway on new location or the physical alteration of an existing highway which significantly changes either the horizontal or vertical alignment or increases the number of through-traffic lanes.” A Type II project is a noise barrier retrofit project that involves no changes to highway capacity or alignment. A Type III project is a project that does not meet the classifications of a Type I or Type II project. Type III projects do not require noise analysis. The proposed Project falls within the category of a Type III project as it would include constructing a segment of a paved trail, a creek crossing structure, and a signalized crossing, which would not be anticipated to change any roadway horizontal or vertical alignment, nor increase the number of traffic lanes. Therefore, new substantial noise would not be generated, and only construction-related noise impacts are discussed.

There are existing sensitive receivers within the vicinity of the proposed construction activity, including existing residences north, south, and east of the existing trail.

Noise sources that contribute to ambient noise levels in and adjacent to the Project site include operational and traffic noise associated with the Walmart and Costco to the west of the existing trail. Table 1 summarizes typical ambient noise levels based on population density.

ITEM 9
Noise Technical Memorandum
NTM 3 March 2026
Table 1. Population Density and Associated Ambient Noise Levels Population Density dBA, Ldn
Rural Suburban 40–50
Quiet suburban residential or small town 45–50
Normal suburban residential urban 50–55
Normal urban residential 60
Noisy urban residential 65
Very noisy urban residential 70
Downtown, major metropolis 75–80
Under flight path at major airport, 0.5 to 1 mile from runway 78–85 Adjoining freeway or near a major airport 80–90
Sources: Cowan 1984; Hoover and Keith 1996
The vicinity of the Project area is most similar to that of a “normal suburban residential urban” setting due the Project’s surrounding uses of residential neighborhoods and local streets. Such areas have an expected typical noise level of 50–55 dBA.

LOCAL REQUIREMENTS
The City of Citrus Heights Noise Ordinance (Citrus Heights Municipal Code, Chapter 34, Article III) contains performance standards for the purpose of prohibiting unnecessary, excessive, annoying sounds that, at certain levels and frequencies, are detrimental to the health and welfare of the City’s residents.

The exterior noise standards applicable to the proposed Project for Noise Area 1, which covers the SPA, RD-5, and RD-20 land use zones abutting the proposed Project (Appendix A. Figure 4. Noise Area 1 Zones), are for exterior noise limits of 55 dBA between 7:00 a.m. to 10 p.m. and 50 dBA between 10:00 p.m. to 7:00 a.m.

The Noise Ordinance provides exemptions from the above standards for outdoor school events; outdoor gatherings conducted pursuant to a City permit; activities in parks, playgrounds and school grounds; machinery used in connection with emergency activities; daytime construction noise; daytime agricultural noise; agricultural noise to salvage crops or perform pest control; daytime residential property maintenance; and airport operations and maintenance.

Specifically, the following exemption is provided for daytime construction noise. “Noise sources associated with construction, repair, remodeling, demolition, paving or grading of any real property, provided the activities do not take place between the hours of 8:00 p.m. and 6:00 a.m. on weekdays and Friday commencing at 8:00 p.m. through and including 7:00 a.m. on Saturday, Saturdays commencing at 8:00 p.m. through and including 7:00 a.m. on the next following Sunday, and on each Sunday after the hour of ITEM 9
Noise Technical Memorandum
NTM 4 March 2026
8:00 p.m. However, when an unforeseen or unavoidable condition occurs during a construction project and the nature of the project necessitates that work in process be continued until a specific phase is completed, the contractor or owner shall be allowed to continue work after 8:00 p.m. and to operate machinery and equipment necessary until completion of the specific work in progress can be brought to conclusion under conditions which will not jeopardize inspection acceptance or create undue financial hardships for the contractor or owner.”
Environmental Consequences
Generally, noise levels at construction sites can vary from 55 dBA to a maximum of nearly 90 dBA when heavy equipment is used. During construction-related activities of the Project, noise from construction-related activities may intermittently (that is, shortterm and temporarily) dominate the noise environment in the immediate area of construction. Construction noise is regulated by Caltrans Standard Specifications for noise control which state that noise levels should not exceed 86 dBA Lmax at 50 feet from job site from 9:00 p.m. to 6:00 a.m.

Construction activities would include cranes, earth movers, dump trucks, concrete mixers, generators, pavers, and possibly jackhammers or pile driving. Noise levels would vary depending on the type, duration, and occurrence of construction-related activity. The loudest construction-related activities may include engine noise from pile driving, jack hammering, and construction vehicles. For this Project, the lowest construction equipment-related noise levels would be 55 dBA at a distance of 50 feet for sound from a pick-up truck. The highest construction-related noise levels would be for pile driving (up to 90 dBA at a distance of 50 feet) involved in installation of the bridge supports for the creek overcrossing structure and for jackhammering (90 dBA at a distance of 50 feet) involved in removing the existing concrete pathways on the apartment complex property.

The nearest distance between nearby residences to bridge supports where pile driving would occur is approximately 300 feet, and noise produced by construction equipment would be reduced over distance at a rate of about 6 dB per doubling of distance. At a distance of 300 feet, noise from pile driving would attenuate to approximately 74 dBA.

Construction-related noise would be short-term, temporary, and intermittent.

Construction is expected to be completed within a 6-month time period, with pile-driving anticipated to occur over a two-day period within the 6 months. No additional construction-related noise control minimization measures are necessary.

Due to the temporarily increased noise levels during construction, minimal adverse noise impacts from construction-related activities are anticipated. Construction would be conducted in accordance with Caltrans Standard Specifications for noise control and in accordance with the Chapter 6.32.100(E) of the City of Citrus Heights Municipal Code:

NOI-1: To minimize the construction-generated noise, the contractor shall follow the Caltrans Standard Specifications for noise control and Chapter 34, Article III, Sec. 34- 88(5) of the City of Citrus Heights Municipal Code, which requires the following:

ITEM 9
Noise Technical Memorandum
NTM 5 March 2026
Control and monitor noise resulting from work activities. Only operate construction equipment or run the equipment engines between the hours of 7:00 a.m. and 8:00 p.m. x When an unforeseen or unavoidable condition occurs during a construction project and the nature of the project necessitates that work in progress be continued until a specific phase is completed, the contractor shall be allowed to continue work after 8:00 p.m. and to operate machinery and equipment necessary until completion of the specific work in progress can be brought to conclusion under conditions which will not jeopardize inspection acceptance or create undue financial hardships for the contractor.

SUMMARY
From the above discussion, it is concluded that construction-related noise impacts caused by the Project would not be substantial because: 1) the Project is not a Type 1 project; 2) the proposed construction duration is short-term, temporary, and intermittent; and 3) construction of the Project would be conducted in accordance with Caltrans’ Standard Specifications for noise control and City of Citrus Heights requirements.

REFERENCES
California Department of Transportation: Division of Environmental Analysis. April 2020. Traffic Noise Analysis Protocol: For New Highway Construction, Reconstruction, and Retrofit Barrier Projects.

Cowan, J. P. 1984. Handbook of Environmental Acoustics. New York, NY: John Wiley & Sons.

City of Citrus Heights, California—Citrus Heights Municipal Code, Chapter 34, Article III.–NOISE CONTROL.

ITEM 9

DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT APPENDIX I: Mitigation Monitoring Plan
ITEM 9

DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT

MITIGATION MONITORING PLAN CHECKLIST FOR THE

ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT Mitigation Measure Reporting Milestone Reporting / Responsible Party VERIFICATION OF COMPLIANCE Initials Date City of Citrus Heights General Plan (CCHGP)
MM

4.7-7:

Discovery of Potential Paleontological Resources If potential paleontological resources are detected by construction workers or City staff during construction of future land uses, work shall stop immediately, and consultation is required to avoid further impacts. Actions after work stoppage will be designed to avoid significant impacts to the greatest extent feasible. These measures could include, but are not limited to, construction worker personnel education, consultation with a qualified paleontologist, coordination with experts on resource recovery and curation of specimens, and/or other measures considered appropriate after further consultation.

During
Construction
City of Citrus
Heights/
Contractor

AESTHETICS
VIS-1 Aesthetic treatments on the new paved trail and prefabricated bridge over Arcade Creek will be consistent with other trails and bridges along the CCTP.

Prior to
Construction
City of Citrus
Heights
VIS-2 Lighting along the trail will be downcast to minimize glare. The Project’s lighting design must be consistent with the City Citrus Heights lighting guidelines and standards.

Prior to and
during
Construction
City of Citrus
Heights/
Contractor

AIR QUALITY
ITEM 9

DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT Mitigation Measure Reporting Milestone Reporting / Responsible Party VERIFICATION OF COMPLIANCE Initials Date AQ-1: Implement Sacrameto Metropolitan Air Quality Management District (SMAQMD) Basic and Enhanced Construction Emission Control Practices to Reduce Fugitive Dust. The implementing agency will require, as a standard or specification of their contract, the construction contractor(s) to implement basic and enhanced control measures to reduce construction-related fugitive dust. Although the following measures are outlined in the SMAQMD’s California Environmental Quality Act (CEQA) guidelines, they are required for the entirety of the construction area. The implementing agency will ensure through contract provisions and specifications that the contractor adheres to the mitigation measures before and during construction and documents compliance with the adopted mitigation measures. x Water all exposed surfaces two times daily. Exposed surfaces include (but are not limited to) soil piles, graded areas, unpaved parking areas, staging areas, and access roads. x Cover or maintain at least 2 feet of freeboard space on haul trucks transporting soil, sand, or other loose material on the site. Any haul trucks that would be traveling along freeways or major roadways shall be covered. x Use wet power vacuum street sweepers to remove any visible trackout mud or dirt onto adjacent public roads at least once a day. Use of dry power sweeping is prohibited. x Limit vehicle speeds on unpaved roads to 15 miles per hour. x All trail, and curb/sidewalk paving should be completed as soon as possible.

The following practices describe exhaust emission control from diesel powered fleets working at a construction site. California regulations limit idling from both on-road and off-road dieselpowered equipment. The California Air Resources Board (CARB) enforces idling limitations and compliance with diesel fleet regulations.
x Minimize idling time either by shutting equipment off when not in use or reducing the time of idling to 3 minutes. Provide clear signate that posts this requirement for workers at the entrances to the site. x Provide current certificate(s) of compliance for CARB’s In-Use Off-Road Diesel-Fueled Fleets Regulation [California Code of Regulations, Title 13, Sections 2449 and 2449.1].

For more information contact CARB at 877-593-6677, [email protected], or www.arb.ca.gov/doors/compliance_cert1.html.

During
Construction
City of Citrus
Heights/
Contractor

BIOLOGY
BIO-1: Every individual working on the Project must attend a biological awareness training session Prior to City of Citrus ITEM 9

Construction Heights/
Contractor
BIO-2: Prior to the start of construction activities, the Project limits adjacent to the Arcade Creek, the Arcade Creek tributary and the riparian woodland habitat will be marked with flagging, staking, or high visibility fencing to ensure construction will not further encroach into adjacent sensitive resources.

Prior to
Construction
City of Citrus
Heights/
Contractor
BIO-3: Best Management Practices (BMPs) will be incorporated into Project construction to minimize impacts on the environment including erosion and the release of pollutants (e.g. oils, fuels):
x Exposed soils and material stockpiles will be stabilized, through watering or other measures, to prevent the movement of dust at the Project site caused by wind and construction. x Implementation of the Project shall require approval of a site-specific SWPPP or Water Pollution Control Program that will implement effective measures to protect water quality, which may include a hazardous spill prevention plan and additional erosion prevention techniques.
x All construction areas will be properly protected to prevent excess erosion, sedimentation, and water pollution.
x All vehicle and equipment fueling/maintenance will be conducted outside of any surface waters and/or sensitive habitat.
x Equipment used in and around jurisdictional waters must be in good working order and free of dripping or leaking contaminants.
x Raw cement, concrete or concrete washings, asphalt, paint or other coating material, oil or other petroleum products, or any other substances that could be hazardous to aquatic life shall be prevented from contaminating the soil or entering jurisdictional waters. x All erosion control measures, and storm water control measures will be properly maintained until the site has returned to a pre-construction state. x All construction materials will be hauled off-site after completion of construction.

During
Construction
Contractor
ITEM 9

Prior to
Construction
City of Citrus
Heights
BIO-5: Native vegetation removal will not exceed what is shown on the plans without prior approval from the Project biologist. If trees will be trimmed rather than removed, trimming must comply with ANSI A300 pruning standards and must not:
x leave branch stubs
x make unnecessary heading cuts
x cut off the branch collar (not make a flush cut)
x top or lion’s tail trees (stripping a branch from the inside leaving foliage just at the ends) x remove more than 25 percent of the foliage of a single branch x remove more than 25 percent of the total tree foliage in a single year x damage other parts of the tree during pruning
x use wound paint
x climb the tree with climbing spikes
During
Construction
City of Citrus
Heights/
Contractor
BIO-6: Following the completion of construction, all temporary effects to riparian woodland, annual grassland and oak woodland habitat will be recontoured and re-seeded at a 1:1 ratio, to allow for the habitat to return to its previous function. Tree removal will follow final plans and specifications, and any deviation must be approved by a Project biologist. All temporarily disturbed areas will be seeded with a Project biologist-approved native seed mix. Any trees removed from the riparian woodland and oak woodland habitat will be appropriately mitigated for through replanting or other methods in coordination with CDFW and the City of Citrus Heights.

Prior to
Construction
City of Citrus
Heights
ITEM 9

Prior to
construction
City of Citrus
Heights/
Contractor
BIO-8: Prior to vegetation removal or initial ground disturbance during the nesting bird season (February 1–September 30) a pre-construction nesting bird survey must be conducted by a Project Biologist prior to the start of work. The nesting bird survey must include the Project area plus a 300-foot buffer. Within 1 week of the nesting bird survey, all vegetated areas that are designated for removal must be cleared by the contractor or a supplemental nesting bird survey is required.

Prior to
construction
City of Citrus
Heights/
Contractor
BIO-9: During the spring/summer season prior to construction the Project biologist must conduct preconstruction Swainson’s hawk protocol-level surveys within the Project area plus a 0.25-mile buffer in accordance with California Department of Fish and Wildlife’s guide for Swainson’s Hawk Technical Advisory Committee. Pre-construction surveys will determine if active nests are present within the Project area or within 0.25 mile of Project activities. If an active nest is discovered within the survey area the Project biologist will determine the appropriate avoidance strategies (e.g., monitoring, no-work buffers, work windows, temporary sound/noise barriers, etc.) to avoid take of the nest and will coordinate with CDFW as needed.

Prior to
construction
City of Citrus
Heights
ITEM 9

Prior to
Construction
City of Citrus
Heights/
Contractor
BIO-11: To prevent the inadvertent entrapment of NWPT, all excavated, steep-walled holes or trenches more than 3 inches wide and 1 foot deep will be inspected for NWPT then covered at the close of each working day by plywood or similar materials. If it is not feasible to cover an excavation, one or more escape ramps constructed of earthen fill or wood ≥ 6 inches wide shall be installed. Before such holes or trenches are filled, they must be thoroughly inspected by the biologist for trapped NWPT.

During
Construction
Contractor
BIO-12: Prior to arrival at the Project site and prior to leaving the Project site, construction equipment that may contain invasive plants and/or seeds will be cleaned to reduce the spreading of noxious weeds.

During
Construction
Contractor
BIO-13: All food-related trash must be disposed into closed containers and must be removed from the Project area daily. Construction personnel must not feed or otherwise attract wildlife to the Project area.

During
Construction
Contractor
BIO-14: The contractor must not apply rodenticide or herbicide within the Project area during construction.

During
Construction
Contractor
BIO-15: If any wildlife is encountered during the course of construction, said wildlife will be allowed to leave the construction area unharmed.

During
Construction
Contractor

CULTURAL RESOURCES
CR-1: If previously unidentified cultural materials are unearthed during construction, it is Caltrans’ policy that work be halted in that area until a qualified archaeologist can assess the significance of the find. Additional archaeological survey would be needed if project limits are extended beyond the present survey limits.

During
Construction
City of Citrus
Heights/
Contractor
ITEM 9

During
Construction
City of Citrus
Heights/
Contractor

GREENHOUSE GAS EMISSIONS
ITEM 9

DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT CC-1: The implementing agency will require through construction contract terms and specifications that the contractor adheres to the mitigation measures and implements all applicable Sacramento Metropolitan Air Quality Management District (SMAQMD) best management practices for reducing construction-related Greenhouse Gas (GHG) emissions. Documentation will be provided to the implementing agency on a weekly basis. The contract provisions and specifications will authorize the implementing agency to sanction contractors for non‐ compliance. The implementing agency will consult SMAQMD prior to construction about the most current recommended construction best management practices and will adopt those practices. Practices include the following:
x Improve fuel efficiency from construction equipment:
o Minimize idling time either by shutting equipment off when not in use or reducing the time of idling to no more than 3 minutes. Provide clear signage that posts this requirement for workers at the entrances to the site. o Maintain all construction equipment in proper working condition according to manufacturer’s specifications. The equipment must be checked by a certified mechanic and determined to be running in proper condition before it is operated. o Train equipment operators in proper use of equipment, including limiting idling time, minimizing warm-up time, performing routine maintenance, and optimizing equipment use. o Avoid using equipment that is larger than the job requires. o Use equipment with new technologies (e.g., repowered engines, electric drivetrains).
x Perform on-site material hauling with trucks equipped with on-road engines (if the air districts or CARB determine them to emit less than the off-road engines). x Use alternative fuels for generators at construction sites, rather than gasoline or diesel (e.g., propane or solar), or use electrical power.
x Use a California Air Resources Board-approved low-carbon fuel for construction equipment. (NOx emissions from the use of low-carbon fuel must be reviewed and increases mitigated.) x Encourage and provide carpools, shuttle vans, and transit passes for construction worker commutes.
x Reduce electricity use in the construction office by using compact fluorescent bulbs, powering off computers every day, and using the most efficient heating and cooling units available. x Recycle or salvage non-hazardous construction and demolition debris (goal of at least 75% by weight) to avoid landfill disposal.

During
Construction
City of Citrus
Heights/
Contractor
ITEM 9

HAZARDS
HM1: To avoid impacts from pavement striping during construction it is recommended that removal requirements for yellow striping and pavement marking materials be performed in accordance with Caltrans Standard Special Provision 14-11.07 REMOVE YELLOW TRAFFIC STRIPE AND PAVEMENT MARKING WITH HAZARDOUS WASTE RESIDUE.

During
Construction
Contractor
HM2: Should any previously unknown hazardous waste/material be encountered during construction, the procedures outlined in Caltrans Hazards Procedures for Construction shall be followed. During Construction Contractor

HYDROLOGY
WQ-1: The proposed project will require a National Pollution Discharge Elimination System (NPDES) General Construction Permit for Discharges of storm water associated with construction activities (Construction General Permit 2022-0057-DWQ). As part of this Permit requirement, a SWPPP shall be prepared prior to construction consistent with the requirements of the RWQCB. This SWPPP will incorporate all applicable BMPs to ensure that adequate measures are taken during construction to minimize impacts to water quality.

Prior to
Construction
City of Citrus
Heights/
Contractor
ITEM 9

DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT Mitigation Measure Reporting Milestone Reporting / Responsible Party VERIFICATION OF COMPLIANCE Initials Date WQ-2: To conform with water quality requirements, the SWPPP must include the following:
x Vehicle maintenance, staging and storing equipment, materials, fuels, lubricants, solvents, and other possible contaminants must be a minimum of 50 feet from surface waters. Any necessary equipment washing must occur where the water cannot flow into surface waters. x The project specifications will require the contractor to operate under an approved spill prevention and clean-up plan;
x Construction equipment will not be operated in flowing water; x Construction work must be conducted according to site-specific construction plans that minimize the potential for sediment input to surface waters; x Raw cement, concrete or concrete washings, asphalt, paint or other coating material, oil or other petroleum products, or any other substances that could be hazardous to aquatic life must be prevented from contaminating the soil or entering surface waters; x Equipment used in and around surface waters must be in good working order and free of dripping or leaking contaminants; and,
x Any concrete rubble, asphalt, or other debris from construction must be taken to an approved disposal site.

Prior to
Construction
City of Citrus
Heights/
Contractor
WQ-3: Prior to the start of construction activities, the project limits in proximity to jurisdictional waters must be marked with high visibility Environmentally Sensitive Area (ESA) fencing or staking to ensure construction will not further encroach into jurisdictional waters.

Prior to
Construction
Contractor
WQ-4: Contract specifications will include the following Best Management Practices (BMPs), where applicable, to reduce erosion during construction:
x Existing vegetation will be protected in place where feasible to provide an effective form of erosion and sediment control;
x As a permanent BMP, slope roughening by equipment tracking will be implemented to create unevenness on bare soil. Surface roughening reduces erosion potential by decreasing runoff velocities, trapping sediment, and increasing water infiltration.

During and
after
Construction
Contractor
NOISE
ITEM 9

During
Construction
Contractor

PUBLIC SERVICES
LU-1: An outreach and engagement plan will be developed to ensure potential security concerns from residents of the Huntington Square Apartments are identified and addressed prior to construction.

Prior to
Construction
City of Citrus
Heights

TRANSPORTATION AND TRAFFIC
LU-2: A Traffic Management Plan will be prepared to identify ways to minimize impacts to the public during partial road closures anticipated during construction.

Prior to
Construction
City of Citrus
Heights

TRIBAL CULTURAL RESOURCES
ITEM 9

DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT Mitigation Measure Reporting Milestone Reporting / Responsible Party VERIFICATION OF COMPLIANCE Initials Date TCR-1: Unanticipated Discoveries of TCRs
If any suspected TCRs or resources of cultural significance to UAIC, including but not limited to features, anthropogenic/cultural soils, cultural belongings or objects (artifacts), shell, bone, shaped stones or bone, or ash/charcoal deposits are discovered by any person during construction activities including ground disturbing activities, all work shall pause immediately within 100 feet of the find, or an agreed upon distance based on the project area and nature of the find. Work shall cease in and within the immediate vicinity of the find regardless of whether the construction is being actively monitored by a Tribal Monitor, cultural resources specialist, or professional archaeologist.A Tribal Representative and the Lead Agency shall be immediately notified, and the Tribal Representative in coordination with the Lead Agency shall determine if the find is a TCR (PRC Section 21074) and the Tribal Representative shall make recommendations for further evaluation and treatment as necessary.

During
Construction
City of Citrus
Heights/
Contractor
TCR-2: Cultural Awareness and Sensitivity Training
Cultural Awareness Training will be developed and provided to all personnel working in the Project area.

Prior to
Construction
City of Citrus
Heights
ITEM 9

DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 CITRUS HEIGHTS GATEWAY ACTIVATION PROJECT
APPENDIX J: Public Comments Received
ITEM 9
ITEM 9
ITEM 9
ITEM 9
From: Kehrer, Daniel
To: [email protected]
Cc: ACCT - Sylvan2StockRanch
Subject: RE: Arcade cripple Creek trail
Date: Thursday, May 21, 2026 5:18:34 PM
Attachments: image002.png
image003.png
ACCT-Sylvan to Stock Ranch Exhibit.pdf
Project Overview Map.pdf
Citrus Heights Cripple Creek Flyer.pdf
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Hi Carol,
Thank you for your interest and questions, here are my responses.

Feel free to respond or ask additional ones if you think of them. 1 Who is going to keep the bike trail clean on both sides from Thai Way to Woodside.

There is no formal trail proposed from Thalia Way to Woodside Dr, our project will be on the other side of the creek (north side).

Those existing pathways and Park are owned and maintained by Sunrise Recreation and Parks District.

2. How much right away will you take on both sides of the creek bed (same area)? No right of way takes are proposed for this trail. We will obtain a 20’-30’ wide easement from Parks District and there is an existing easement on the Huntington Square Apartments we are utilizing for our trail.

3. Where is bike signalized light going in, at end of Woodside? The proposed signal will be on Sylvan Road, just north of the bridge at the southern end of Huntington Square Apartments property.

No crossings or connections to Woodside Drive are planned (the crossing will be ~1,300 feet north of Woodside Dr).

4. The bridge you are talking about on Woodside?
No. This will be a new (small) bridge only for trail purposes between Huntington Square Apartments and the Stock Ranch open space on the north side of the creek.

5. What are you going to do to protect property owners from Woodside to Thai? No plans for added security, the trail is not close to these roadways.

ITEM 9
You don't often get email from [email protected]. Learn why this is important We have not had any known incidents or safety concerns along our existing trail systems (beyond the E-bikes going too fast).

We actually see a reduction in homeless and ‘undesirable’ activities where trails are installed and used by the general public.

6. I have had all the plans for this area for years, and you are aware part of the plan will be owned by the City, part by the Park District, and part by Igor. We have been here on John Stocks property for 90 years, but actually it was Mae van Marens house at the end of the road, John Stock offered me 2 years before he died the property attached between Woodside Dr and Thai and I said, no thanks John I don't trust the City on what they will do and I knew you had I think 35 feet of right away so I didn't buy it, and now I am glad. I feel sorry for Igor who just bought the adjoining property a year ago, and if it isn't kept up, we will probably have a fire in the same location.

I am unsure what you are referring to with this question. The City will only “own” (in easement) the area isolated to the trail so we can keep up on the maintenance.

All other land uses and ownership will be the same as it is today.

Please take a closer look at the project’s alignment in the attached PDF to help clarify where this trail is actually going.

Daniel Kehrer PE CFM QSD/P
Principal Civil Engineer
[email protected]
6360 Fountain Square Dr. | Citrus Heights, CA
(916) 727-4904 | www.citrusheights.net
From: [email protected] <[email protected]>
Sent: Monday, May 18, 2026 2:17 PM
To: Kehrer, Daniel <[email protected]>
Subject: Arcade cripple Creek trail
Carol Alexander, 7330 Woodside Dr, 916-725-5834. I do have some questions about your proposal. Number 1 Who is going to keep the bike trail clean on both sides from Thai Way to Woodside. 2. How much right away will you take on both sides of the creek bed (same area)?

3. Where is bike signalized light going in, at end of Woodside? 4. The bridge you are talking about on Woodside? 5. What are you going to do to protect property owners from Woodside ITEM 9
to Thai?

6. I have had all the plans for this area for years, and you are aware part of the plan will be owned by the City, part by the Park District, and part by Igor.

We have been here on John Stocks property for 90 years, but actually it was Mae van Marens house at the end of the road, John Stock offered me 2 years before he died the property attached between Woodside Dr and Thai and I said, no thanks John I don't trust the City on what they will do and I knew you had I think 35 feet of right away so I didn't buy it, and now I am glad. I feel sorry for Igor who just bought the adjoining property a year ago, and if it isn't kept up, we will probably have a fire in the same location.

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ITEM 9
From: Kehrer, Daniel
To: Bobbi
Cc: ACCT - Sylvan2StockRanch
Subject: RE: failure notice
Date: Wednesday, June 17, 2026 4:32:09 PM
Attachments: image002.png
image003.png
image004.png
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Hi Bobbi,
Please see below for responses to your questions, please let me know if I’ve left any unanswered.

My main concern is that the MND may not adequately evaluate potential upstream flooding impacts associated with the project. Any modifications to drainage patterns, creek crossings, bridge structures, embankments, or trail improvements within or adjacent to flood-prone areas could affect water flow during storm events, especially bomb cyclones. I don't see any clear analysis that it WILL NOT increase flood risk to upstream properties.

This Project has completed a Location Hydraulic Study that incorporated rainfall models and physical cross sections of the creek for the existing and proposed conditions.

The findings of this report includes detailed hydraulic analysis and states, " The Project has been designed to minimize both short-term and long-term impacts to the floodplain.

Temporary construction disturbances will be minimized through the implementation of best management practices (BMPs), including erosion and sediment control measures.

Permanent improvements, including minor grading, bank protection, and installation of a prefabricated bridge, have been designed to avoid adverse hydraulic impacts. While fill is proposed to support the bridge structure, hydraulic modeling confirms that there are no increases in BFEs between the existing and proposed conditions.” You may download/view the report here: 5475(053) DRAFT Location Hydraulic Study.pdf
This report has been approved and is currently being routed for signatures with City and State Department of Transportation staff. I will post this (and all approved studies) to the project website when they are fully signed.

Also, the long-term maintenance and replacement costs associated with the proposed bridges and related infrastructure concerns me. While the ITEM 9
MND discusses project construction impacts, it appears to provide limited info regarding ongoing maintenance and future repair or replacement expenses. You did tell us at the June 4th meeting the 4 bridge repairs already constructed are paid half by Caltrans and half from the Citrus Heights general fund, or rather us taxpayers. These long-term costs will ultimately be borne by the taxpayers and should be fully disclosed and evaluated.

Maintenance costs have been incorporated into the City’s budgets for our planned trail extensions (including this one) on-going maintenance costs are do not differ very much from the existing costs for maintaining the creeks and open spaces. The discussion we had during the June 4th meeting are for bridges constructed in the 1960’s and the maintenance work is primarily creek embankment repairs near the bridge (re-shape the embankments and armor with heavy rock slope protections). No major bridge repairs or re-construction are necessary for these prescribed corrections sent to us from State structural inspections. Please note that we have 63 bridges in the City (and growing) and only 4 required minor repairs from reports received last year. We have carefully planned the bridge for this project to be 2’ above the 100-year flood plain, to minimize any damage from significant rain events, we do anticipate minor repairs to the embankments in the future, as is very typical of all creek crossings and creek maintenance costs.

There has been a significant increase in the use of motorized bicycles on the trails and streets of Stock Ranch. The safety and enforcement appear to rely on the Citrus Heights police (cops on bikes). I have rarely, if ever, observed police patrols on these facilities.

The city should provide info regarding how such enforcement would be implemented.

I agree with your observations regarding motorized bicycles, our Police ProblemOriented Policing (POP) Unit is currently working on formalizing a trail use ordinance to improve their enforcement capabilities. Our department meets with CHPD (POP and Traffic Enforcement) monthly and they indicate the trails are patrolled daily by at-least one of their motor officers. It is currently illegal to use a private motorcycle or dirt-bike on our trail network and the new ordinance will provide a maximum speed limit and provide clarifications on E-bike and E-scooter restrictions (please keep an eye out for City Council hearings for this Ordinance later in 2026).

The proposed trial segment should not be evaluated in isolation from the larger trail network. Public info indicated that the future trail
segment between Sayonara and Mariposa includes 4 additional bridges. While that project may not begin construction until a later date, the cumulative effect of construction and maintaining multiple bridge crossings throughout the trail system should be considered. Repair costs
ITEM 9
can be substantial and is important for the public to understand the full long=term obligations associated with the expansion of the trail
network.

This is not how hydraulic studies work. Each individual project must meet a “no rise” certification for its specific impact. Any significant changes to floodways (for any project) would require a map revision with FEMA and County Department of Water Resources.

The City takes floodplain management very seriously and implements local requirements above and beyond the minimums mandated by the State and Federal Government. The ACCT Sylvan to Stock Ranch project has studied and exhibited that there will not be an increase in floodplain (upstream, downstream, or within) the project limits.

When the Sayonara to Mariposa extension is ready, it will be held to the same standards as the current project. See response above for maintenance and repair cost planning within the City’s capital improvement and maintenance budget documents.

How is it that the Sayonara-Mariposa project showed fully funded on the map at the June 4th meeting, but the current Stock Ranch
is only partially funded?
Every project is unique. The Sayonara-Mariposa Project applied for Active Transportation (ATP) Grant funding in 2023 for all phases of that Project’s design and construction. The current project (Sylvan-Stock Ranch), received Federal Carbon Reduction Grant Funding for the preliminary and final design phases (this grant program does not offer construction funds). The City Team is currently applying for the 2027 ATP Grant Funding for construction and we are hopeful that we can get this awarded. If not, we will keep trying any and all appropriate grant opportunities as outside funding is critical to the budgets we have for the vast majority of our Capital Improvement Projects.

I am also concerned about the accuracy of the land use info presented in the documents. The maps appear to identify certain areas adjacent to the proposed trail as "Open Space" Page 10 Fig. 5. East of Sylvan Road. My understanding is that this area consists of privately owned residential property, in a low-density residential neighborhood. The city should verify the accuracy of the land use designation and mapping used in the environmental review. because it affects the analysis of privacy concerns security consideration and potential effects of adjacent residents.

The CEQA Document, on Page 17 (Figure 4, Zoning Districts) this area is clearly labeled as RD-5 which matches your understanding and the City’s General Plan for low-density housing. On Page 18, the area shown as ‘open space’ is potentially misleading, that shape appears to be consistent with the existing trail easement on the properties on the ITEM 9
north-side of Arcade Creek for a future trail segment. The City accepts your comment and will have our consultant team provide a clarification/correction in the final CEQA document. We will follow up with you after the final version is posted on the City’s website.

My concern is not with the trail development in the Stock Ranch area, and I welcome the Ped crossing over Sylvan Road, but the city should ensure that residents have a complete understanding of the true public cost and property impacts before additional commitments are made.

Thank you again for your attention to this project and your comments provided. Your City works very hard to provide transparency and information for our projects, budgets, and plans. Every project that we deliver meets (and generally exceeds) the high-standard of reporting and notices required by State and Federal Law, we do listen to our residents and feedback. We post our citywide budgets, capital projects, capital project funding online; and provide annual updates at City Council Meetings (if not more frequently), and hold project-specific outreach campaigns to ensure the public has an opportunity to comment. In addition, our Team is committed to transparency and regularly schedule meetings with residents at City Hall who are interested in learning more about a project or the City’s programs/budgets (just stop by or give us a call). If you have any specific suggestions for improvement, let us know.

I am here and available to discuss any questions or follow up items you may have regarding this or any other City project, reach out anytime.

Sincerely,
Daniel Kehrer PE CFM QSD/P
Principal Civil Engineer
6360 Fountain Square Dr. | Citrus Heights, CA
(916) 727-4904 | www.citrusheights.net
From: Kehrer, Daniel
Sent: Tuesday, June 16, 2026 12:38 PM
To: 'Bobbi' <[email protected]>
Cc: ACCT - Sylvan2StockRanch <[email protected]> Subject: RE: failure notice
ITEM 9
Hi Bobbi,
I wanted to let you know that I received your email this time and our team will send you responses to the questions soon.

Thank you for reaching out.

Daniel Kehrer PE CFM QSD/P
Principal Civil Engineer
[email protected]
6360 Fountain Square Dr. | Citrus Heights, CA
(916) 727-4904 | www.citrusheights.net
From: Bobbi <[email protected]>
Sent: Sunday, June 14, 2026 10:21 AM
To: Kehrer, Daniel <[email protected]>
Subject: FW: failure notice
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Subject: failure notice
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Subject: Fwd: Comments on Stock Ranch Sylvan Rd Bike Trail MND In-Reply-To: <[email protected]> References: <[email protected]>
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Dan,
I am a long-term resident of Citrus Heights and attended the June 4th community meeting. I do have some concerns about this project and some questions.

My main concern is that the MND may not adequately evaluate potential upstream flooding impacts associated with the project. Any modifications ITEM 9
to drainage patterns, creek crossings, bridge structures, embankments, or trail improvements within or adjacent to flood-prone areas could affect water flow during storm events, especially bomb cyclones. I don't see any clear analysis that it WILL NOT increase flood risk to upstream properties.

Also, the long-term maintenance and replacement costs associated with the proposed bridges and related infrastructure concerns me. While the MND discusses project construction impacts, it appears to provide limited info regarding ongoing maintenance and future repair or replacement expenses. You did tell us at the June 4th meeting the 4 bridge repairs already constructed are paid half by Caltrans and half from the Citrus Heights general fund, or rather us taxpayers. These long-term costs will ultimately be borne by the taxpayers and should be fully disclosed and evaluated.

While that project may not begin construction until a later date, the cumulative effect of construction and maintaining multiple bridge crossings throughout the trail system should be considered. Repair costs can be substantial and is important for the public to understand the full long=term obligations associated with the expansion of the trail network. How is it that the Sayonara-Mariposa project showed fully funded on the map at the June 4th meeting, but the current Stock Ranch is only partially funded?
I am also concerned about the accuracy of the land use info presented in the documents. The maps appear to identify certain areas adjacent to the proposed trail as "Open Space" Page 10 Fig. 5. East of Sylvan Road.

My understanding is that this area consists of privately owned residential property, in a low-density residential neighborhood. The ITEM 9
city should verify the accuracy of the land use designation and mapping used in the environmental review. because it affects the analysis of privacy concerns security consideration and potential effects of adjacent residents.

Sincerely,
Bobbi Robben

ITEM 9

DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT

MITIGATION MONITORING PLAN CHECKLIST FOR THE

4.7-7:

During
Construction
City of Citrus
Heights/
Contractor

AESTHETICS
VIS-1 Aesthetic treatments on the new paved trail and prefabricated bridge over Arcade Creek will be consistent with other trails and bridges along the CCTP.

Prior to and
during
Construction
City of Citrus
Heights/
Contractor

AIR QUALITY
ITEM
9 DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT Mitigation Measure Reporting Milestone Reporting / Responsible Party VERIFICATION OF COMPLIANCE Initials Date AQ-1: Implement Sacrameto Metropolitan Air Quality Management District (SMAQMD) Basic and Enhanced Construction Emission Control Practices to Reduce Fugitive Dust. The implementing agency will require, as a standard or specification of their contract, the construction contractor(s) to implement basic and enhanced control measures to reduce construction-related fugitive dust. Although the following measures are outlined in the SMAQMD’s California Environmental Quality Act (CEQA) guidelines, they are required for the entirety of the construction area. The implementing agency will ensure through contract provisions and specifications that the contractor adheres to the mitigation measures before and during construction and documents compliance with the adopted mitigation measures. x Water all exposed surfaces two times daily. Exposed surfaces include (but are not limited to) soil piles, graded areas, unpaved parking areas, staging areas, and access roads. x Cover or maintain at least 2 feet of freeboard space on haul trucks transporting soil, sand, or other loose material on the site. Any haul trucks that would be traveling along freeways or major roadways shall be covered. x Use wet power vacuum street sweepers to remove any visible trackout mud or dirt onto adjacent public roads at least once a day. Use of dry power sweeping is prohibited. x Limit vehicle speeds on unpaved roads to 15 miles per hour. x All trail, and curb/sidewalk paving should be completed as soon as possible.

For more information contact CARB at 877-593-6677, [email protected], or www.arb.ca.gov/doors/compliance_cert1.html.

During
Construction
City of Citrus
Heights/
Contractor

BIOLOGY
BIO-1: Every individual working on the Project must attend a biological awareness training session Prior to City of Citrus ITEM
9 DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT Mitigation Measure Reporting Milestone Reporting / Responsible Party VERIFICATION OF COMPLIANCE Initials Date conducted by the Project biologist. This training program will include information regarding the sensitive habitats and an overview of special status wildlife species that may be encountered within the work area. During biological awareness training, construction personnel will be briefed on topics including, but not limited to, the protected status of VELB and NWPT, as well as the need to protect elderberry shrubs, the host plant of VELB.

During
Construction
Contractor
ITEM
9 DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT Mitigation Measure Reporting Milestone Reporting / Responsible Party VERIFICATION OF COMPLIANCE Initials Date BIO-4: Permanent effects to stream channel and riparian woodland habitat will be provided compensatory mitigation to result in no net loss of habitat, at an agency-approved mitigation ratio via one of the following compensatory mitigation options:
x payment of an in-lieu fee to an agency-approved mitigation site, x compensatory off-site mitigation at an agency-approved mitigation site, x compensatory on-site mitigation, or
x a combination of the above compensatory mitigation options.

Prior to
Construction
City of Citrus
Heights
ITEM
9 DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT Mitigation Measure Reporting Milestone Reporting / Responsible Party VERIFICATION OF COMPLIANCE Initials Date BIO-7: A focused rare plant survey will be conducted within the Project area prior to the start of construction. If rare plants are discovered during pre-construction surveys but can be reasonably avoided, an Environmentally Sensitive Area (ESA) fence will be installed to protect the specimens in place.If a special status plant specimen is present within the Project area and cannot be fully avoided, the Project biologist will relocate individual(s) and/or collect seeds to ensure the continued existence of the local population. Area of relocation or re-seeding will be at the discretion of the Project biologist but will be located within suitable habitat and within the same watershed of the Project, preferably at a location that is protected in perpetuity.

Prior to
construction
City of Citrus
Heights
ITEM
9 DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT Mitigation Measure Reporting Milestone Reporting / Responsible Party VERIFICATION OF COMPLIANCE Initials Date BIO-10: To avoid impacts to western pond turtles, the Project biologist will conduct a pre-construction survey of the aquatic and upland habitats within the Project area. Surveys will be conducted no more than 24 hours prior to onset of construction. If a western pond turtle is spotted within an active work area the Project Biologist will be contacted, and work activities will immediately cease within 100 feet of the turtle. Work will not recommence until the turtle has left the Project site on its own volition. In addition, if western pond turtle nests are detected within or adjacent to the Project area, the Project biologist will mark the nests with high-visibility flagging or fencing and establish a 25-foot no-disturbance buffer around each nest to prevent disturbance until hatching occurs or the biologist determines the nest is no longer at risk.

During
Construction
Contractor
BIO-14: The contractor must not apply rodenticide or herbicide within the Project area during construction.

During
Construction
Contractor
BIO-15: If any wildlife is encountered during the course of construction, said wildlife will be allowed to leave the construction area unharmed.

During
Construction
Contractor

During
Construction
City of Citrus
Heights/
Contractor
ITEM
9 DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT Mitigation Measure Reporting Milestone Reporting / Responsible Party VERIFICATION OF COMPLIANCE Initials Date CR-2: Section 5097.94 of the Public Resources Code and Section 7050.5 of the California Health and Safety Code protect Native American burials, skeletal remains and grave goods, regardless of age and provide method and means for the appropriate handling of such remains. If human remains are encountered, all ground disturbance within a 100-ft radius must stop and the county coroner should be notified immediately. At the same time, an archaeologist should be contacted to evaluate the situation and Caltrans PQS should be contacted. If the human remains are of Native American origin, the coroner must notify the Native American Heritage Commission within 24 hours of such identification. CEQA details steps to be taken if human burials are of Native American origin.

During
Construction
City of Citrus
Heights/
Contractor

GREENHOUSE GAS EMISSIONS
ITEM
9 DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT CC-1: The implementing agency will require through construction contract terms and specifications that the contractor adheres to the mitigation measures and implements all applicable Sacramento Metropolitan Air Quality Management District (SMAQMD) best management practices for reducing construction-related Greenhouse Gas (GHG) emissions. Documentation will be provided to the implementing agency on a weekly basis. The contract provisions and specifications will authorize the implementing agency to sanction contractors for non‐ compliance. The implementing agency will consult SMAQMD prior to construction about the most current recommended construction best management practices and will adopt those practices. Practices include the following:
x Improve fuel efficiency from construction equipment:
o Minimize idling time either by shutting equipment off when not in use or reducing the time of idling to no more than 3 minutes. Provide clear signage that posts this requirement for workers at the entrances to the site. o Maintain all construction equipment in proper working condition according to manufacturer’s specifications. The equipment must be checked by a certified mechanic and determined to be running in proper condition before it is operated. o Train equipment operators in proper use of equipment, including limiting idling time, minimizing warm-up time, performing routine maintenance, and optimizing equipment use. o Avoid using equipment that is larger than the job requires. o Use equipment with new technologies (e.g., repowered engines, electric drivetrains).
x Perform on-site material hauling with trucks equipped with on-road engines (if the air districts or CARB determine them to emit less than the off-road engines). x Use alternative fuels for generators at construction sites, rather than gasoline or diesel (e.g., propane or solar), or use electrical power.
x Use a California Air Resources Board-approved low-carbon fuel for construction equipment. (NOx emissions from the use of low-carbon fuel must be reviewed and increases mitigated.) x Encourage and provide carpools, shuttle vans, and transit passes for construction worker commutes.
x Reduce electricity use in the construction office by using compact fluorescent bulbs, powering off computers every day, and using the most efficient heating and cooling units available. x Recycle or salvage non-hazardous construction and demolition debris (goal of at least 75% by weight) to avoid landfill disposal.

During
Construction
City of Citrus
Heights/
Contractor
ITEM
9 DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT Mitigation Measure Reporting Milestone Reporting / Responsible Party VERIFICATION OF COMPLIANCE Initials Date x Use locally sourced or recycled materials for construction materials (goal of at least 20% based on costs for building materials, and based on volume for trail, sidewalk and curb materials). Wood products utilized should be certified through a sustainable forestry program. x Minimize the amount of concrete for paved surfaces or utilize a low carbon concrete option.
x Produce concrete on-site if determined to be less emissive than transporting ready mix. x Use Smartway certified trucks for deliveries and equipment transport. x Develop a plan to efficiently use water for adequate dust control.

Prior to
Construction
City of Citrus
Heights/
Contractor
ITEM
9 DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT Mitigation Measure Reporting Milestone Reporting / Responsible Party VERIFICATION OF COMPLIANCE Initials Date WQ-2: To conform with water quality requirements, the SWPPP must include the following:
x Vehicle maintenance, staging and storing equipment, materials, fuels, lubricants, solvents, and other possible contaminants must be a minimum of 50 feet from surface waters. Any necessary equipment washing must occur where the water cannot flow into surface waters. x The project specifications will require the contractor to operate under an approved spill prevention and clean-up plan;
x Construction equipment will not be operated in flowing water; x Construction work must be conducted according to site-specific construction plans that minimize the potential for sediment input to surface waters; x Raw cement, concrete or concrete washings, asphalt, paint or other coating material, oil or other petroleum products, or any other substances that could be hazardous to aquatic life must be prevented from contaminating the soil or entering surface waters; x Equipment used in and around surface waters must be in good working order and free of dripping or leaking contaminants; and,
x Any concrete rubble, asphalt, or other debris from construction must be taken to an approved disposal site.

During and
after
Construction
Contractor
NOISE
ITEM
9 DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT Mitigation Measure Reporting Milestone Reporting / Responsible Party VERIFICATION OF COMPLIANCE Initials Date NOI-1: To minimize the construction-generated noise, the contractor shall follow the Caltrans Standard Specifications for noise control and Chapter 34, Article III, Sec. 34-88(5) of the City of Citrus Heights Municipal Code, which requires the following:
x Only operate construction equipment or run the equipment engines between the hours of 7:00 a.m. and 8:00 p.m.
x When an unforeseen or unavoidable condition occurs during a construction project and the nature of the project necessitates that work in progress be continued until a specific phase is completed, the contractor shall be allowed to continue work after 8:00 p.m. and to operate machinery and equipment necessary until completion of the specific work in progress can be brought to conclusion under conditions which will not jeopardize inspection acceptance or create undue financial hardships for the contractor.

During
Construction
Contractor

Prior to
Construction
City of Citrus
Heights

TRANSPORTATION AND TRAFFIC
LU-2: A Traffic Management Plan will be prepared to identify ways to minimize impacts to the public during partial road closures anticipated during construction.

Prior to
Construction
City of Citrus
Heights

TRIBAL CULTURAL RESOURCES
ITEM
9 DOKKEN ENGINEERING INITIAL STUDY/PROPOSED MITIGATED NEGATIVE DECLARATION July 2026 ARCADE-CRIPPLE CREEK TRAIL (SYLVAN ROAD TO STOCK RANCH) EXTENSION PROJECT Mitigation Measure Reporting Milestone Reporting / Responsible Party VERIFICATION OF COMPLIANCE Initials Date TCR-1: Unanticipated Discoveries of TCRs
If any suspected TCRs or resources of cultural significance to UAIC, including but not limited to features, anthropogenic/cultural soils, cultural belongings or objects (artifacts), shell, bone, shaped stones or bone, or ash/charcoal deposits are discovered by any person during construction activities including ground disturbing activities, all work shall pause immediately within 100 feet of the find, or an agreed upon distance based on the project area and nature of the find. Work shall cease in and within the immediate vicinity of the find regardless of whether the construction is being actively monitored by a Tribal Monitor, cultural resources specialist, or professional archaeologist.A Tribal Representative and the Lead Agency shall be immediately notified, and the Tribal Representative in coordination with the Lead Agency shall determine if the find is a TCR (PRC Section 21074) and the Tribal Representative shall make recommendations for further evaluation and treatment as necessary.

Prior to
Construction
City of Citrus
Heights
ITEM
9 CITY OF CITRUS HEIGHTS

CITY COUNCIL STAFF REPORT

MEMORANDUM
DATE: July 8, 2026
TO: Mayor and City Council Members
Ashley J. Feeney, City Manager
FROM: Regina Cave, General Services Director
Leslie Blomquist, City Engineer
Daniel Kehrer, Principal Civil Engineer
SUBJECT: Creek Erosion and Bridge Scour Protection Project Adoption of Initial Study/Mitigated Negative Declaration Recommendation
Staff has prepared the Creek Erosion and Bridge Scour Protection Project (Project) Initial Study/Mitigated Negative Declaration (IS/MND; State Clearinghouse Number [SCH] No. 2026050929), in accordance with the California Environmental Quality Act (CEQA). The IS/MND evaluates the anticipated environmental impacts of the proposed Project.

This Project includes creek embankment repairs near four existing bridges where natural erosion poses a risk of damage to public infrastructure and includes prescribed maintenance activities provided to the City from California Department of Transportation (Caltrans) bridge inspection reports. In accordance with CEQA, the draft IS/MND was circulated for a 30-day public review from May 22 to June 22, 2026. One agency comment was received from California Department of Fish and Wildlife and one public comment was received from a nearby resident. Both comments received were responded to and are included within the Final IS/MND for the Project.

Staff recommends the City Council adopt Resolution No. 2026-___ A Resolution of the City Council of the City of Citrus Heights, California, Adopting Creek Erosion and Bridge Scour Protection Project Initial Study / Mitigated Negative Declarations and Mitigation Monitoring and Reporting Program.

Strategic Plan Alignment
This item aligns with the following Citrus Heights City Council Strategic Three Year Goal:

Goal: Maintain Public Infrastructure and Enhance All Modes of Transportation Fiscal Impact
There recommended action will not impact the Fiscal Year (FY) 2026/2027 budget or the current Capital Improvement Program (CIP). Minor fees for recording the documents with the ITEM 10
Subject: Creek Erosion and Bridge Scour Prevention Project - Adoption of IS/MND Date: July 8, 2026

Page 2 of 3 ends

Citrus Heights City Council MeetingsJuly 8, 2026

Citrus Heights City Council Meetings
July 8, 2026