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Sonoma Valley County Sanitation District System Protection Plan at Kohler & Sonoma Creek Crossing Project

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Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

AI Contract Overview

The Sonoma Valley County Sanitation District System Protection Plan at Kohler and Sonoma Creek Crossing Project, executed under Lake and Streambed Alteration Agreement EPIMS-SON-50608-R3, involves permanent repairs to protect sanitary sewer pipelines crossing Kohler and Sonoma Creeks in Sonoma County, California. The scope of work includes the use of rock slope protection, fabric reinforced fill structures with biodegradable fabrics, log rootwad revetments, brush mattresses, and native vegetation. Additionally, the pipeline across Sonoma Creek will be armored with large boulders, and the project will incorporate revegetation with native plants and the installation of habitat improvement elements for aquatic species. The project is managed by the Sonoma County Water Agency as the lead agency and was approved by the California Department of Fish and Wildlife on July 28, 2025, pursuant to Fish and Game Code section 1602. Environmental impacts include approximately 20 linear feet of permanent open water habitat impact and temporary impacts to 290 linear feet of open water and 305 linear feet of riparian habitat, including areas supporting California freshwater shrimp. Compliance is governed by a Mitigated Negative Declaration and a Mitigation Reporting or Monitoring Plan associated with California Endangered Species Act Incidental Take Permit No. 2081-2024-026-03. Performance will take place at 13965 Arnold Drive, Glen Ellen, California.

General Info

Authorization for permanent sewer repairs in creeks with habitat mitigation for endangered shrimp and native vegetation.

Agency

California → Sonoma County Water Agency

NAICS

237990 - Other Heavy and Civil Engineering ConstructionView NAICS

Place of Performance

Set-Aside

NONE

Documents

(1)

Notice of Determination EPIMS-SON-50608-R3

PDF•notice-of-determination

AI Contract Breakdown

Uniform Contract Format

Timeline

PostedAug 22

forecast

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Organization & Contact Information

AgencyCalifornia → Sonoma County Water Agency

Contacts2 people available

OfficeN/A

Organization / Agency

California → Sonoma County Water Agency

Office AddressN/A

Contacts

James HansenEnvironmental Scientist

contact@example.gov

+1 (555) 000-0000

Dave CookLead Agency Contact

contact@example.gov

+1 (555) 000-0000

Full Description

The California Department of Fish and Wildlife (CDFW) has executed Lake and Streambed Alteration Agreement (EPIMS-SON-50608-R3), pursuant to Fish and Game Code section 1602, to the project Applicant, Sonoma Valley County Sanitation District. The project is limited to permanent repairs along Kohler and Sonoma creeks to protect Sonoma Valley County Sanitation District (SVCSD) sanitary sewer pipelines that cross Kohler and Sonoma Creeks, using a combination of rock slope protection, fabric reinforced fill structures (FREFs) built with biodegradable fabrics, log rootwad revetments, brush mattresses, and native vegetation. In addition, the pipeline across Sonoma Creek will be armored in its current location with large boulders. The Project will also include revegetation with native plants and installation of habitat improvement elements for aquatic species in Sonoma Creek. In total, the project will result in approximately 20 linear feet (0.01 acres) of permanent impact and approximately 290 linear feet (0.35 acres) of temporary impact to open water habitat, as well as approximately 305 linear feet (0.09 acres) of temporary impact to riparian habitat. Of the 305 linear feet (0.09 acres), 210 linear feet (0.04 acres) includes California freshwater shrimp (Syncaris pacifica) habitat above the wetted potion of Sonoma Creek. The project will also result in the removal of two riparian trees. Access and staging will occur via an existing developed driveway and residential parking area.