FY 2024/2025 Gravity Sewer Improvements Project
2 Documents in Project
Summary
SCH Number
2025010340
Lead Agency
Ross Valley Sanitary District
Document Title
FY 2024/2025 Gravity Sewer Improvements Project
Document Type
NOD - Notice of Determination
Received
Posted
2/25/2025
Document Description
The Ross Valley Sanitary District (RVSD) Fiscal Year 2024/2025 Gravity Sewer Improvements Project (#958) (Project) entails the construction and rehabilitation, within the existing alignment, of sanitary sewer mains, manholes, and related appurtenances within the town of Fairfax, unincorporated town of Kentfield, and town of San Anselmo, all of which are within the County of Marin (Attachment B, Figures). The primary goal of this project is to replace aging RVSD infrastructure and reduce inflow and infiltration into the system.
The Project would rehabilitate approximately 14,042 linear feet (LF) of sanitary sewers and install 862 LF of new sanitary sewer with high-density polyethylene (HDPE) pipe ranging in size from 6 to 8 inches. Sewers would be replaced by open-cut removal and replacement (3,994 LF), pipe bursting (8,912 LF), and pipe reaming (1,136 LF) methods. Lower laterals and property-line cleanouts would also be replaced at all locations. Depths of the excavation would vary between 3 and 10 ft.
Work would also include the construction of 33 sanitary sewer manholes to replace existing manholes or construct new manholes. Manhole locations would require excavation and backfill of an area of approximately 8 × 8 ft, with varying depths projected to range from approximately 5 to 10 ft.
The rehabilitation of all sanitary sewer mains would occur within the existing alignment. Most pipelines either fall within public rights-of-way or designated easements running through private property. For work in backyard easements, portable equipment would be used to accommodate space restrictions and minimize impacts.
Contact Information
Name
Philip Benedetti
Agency Name
Ross Valley Sanitary District
Job Title
Senior Engineer
Contact Types
Lead/Public Agency / Project Applicant
Phone
Email
Location
Cities
Fairfax, San Anselmo
Counties
Marin
Regions
Citywide, Countywide
Other Location Info
Multiple locations, see other information for full list.
Other Information
Cross streets for the City/nearest community:
Town of Fairfax (zip code: 94930): Sherman Avenue and Bolinas Road
Town of San Anselmo (zip code: 94960): Sir Francis Drake Boulevard between Suffield Avenue and Butterfield Road, Valley Road between West Court and Traxler Road, West Court, Skyline Road, Camino de Herera, Rutherford Avenue, Suffield Avenue, Hawthorne Avenue, and Bennit Avenue
Unincorporated town of Kentfield (zip code: 94904): Stadium Way, Sherwood Court, Lancaster Avenue, Berens Drive, Wolfe Canyon Road, Tamal Vista Lane, Kentdale Lane, and Wolfe Grade
Notice of Determination
Approving Agency
Ross Valley Sanitary District
Approving Agency Role
Lead Agency
Approved On
County Clerk
Marin
Final Environmental Document Available at
https://rvsd.org/171/Documents
Determinations
(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
No
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
Yes
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
Yes
Attachments
Final Document(s) [Approved_Certified draft environmental documents]
Notice of Determination
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