FY 2022/2023 Gravity Sewer Improvements Project (#953)
On July 8, 2022, an Initial Study/Mitigated Negative Declaration (IS/MND) for the FY 22/23 Gravity Sewers Improvements Project (#953) (Project) was released for public and agency review. The Project entails the construction and rehabilitation, within the existing alignment, of sanitary sewer mains and related appurtenances within the unincorporated community of Sleepy Hollow, the Town of San Anselmo, the unincorporated communities of Greenbrae and Kentfield, and the City of Larkspur, located within the County of Marin. The Project would include rehabilitation of sanitary sewer mains in the following areas: (1) Sleepy Hollow: Replacing approximately 1,554 linear ft of existing 6-inch (in.) vitrified clay pipe (VCP) with 8-in. high-density polyethylene (HDPE) pipe via pipe bursting methods. No work would occur on the bridge located at Deer Hollow Road, (2) San Anselmo: Replacing approximately 2,125 linear ft of existing 6-in. VCP with 8-in. HDPE pipe via pipe bursting methods; (3) Greenbrae: Replacing approximately 1,219 linear ft of existing 6-in. VCP with 8-in. HDPE pipe via pipe bursting methods; (4) Kentfield: Replacing approximately 1,575 linear ft of existing 6-in. VCP with 8-in. HDPE pipe via pipe bursting methods and; (5) Larkspur: Replacing approximately 120 linear ft of existing 6-in. VCP with 6-in. HDPE pipe via pipe bursting methods. The primary objective of this Project is to relieve hydraulic and structural deficiencies and reduce groundwater infiltration with aging RVSD infrastructure. The public review and commenting period of the IS/MND ends on August 8, 2022. All comments should be sent to Philip Benedetti, Ross Valley Sanitary District, 2960 Kerner Boulevard, San Rafael, California 94901 or emailed to Administrative Staff.
View the Notice of Intent to Adopt a Mitigated Negative Declaration for the FY 22/23 Gravity Sewers Improvements Project (#953).
The Notice of Determination (NOD) for the Fiscal Year 2022/2023 Gravity Sewer Improvements Project (#953) was signed on September 22, 2022.
The Final Initial Study/Mitigated Negative Declaration (FIS/MND) for the Fiscal Year 2022/2023 Gravity Sewer Improvements Project (#953) was adopted by the Ross Valley Sanitary District Board of Directors on September 21, 2022.
Click here to also see the Mitigation Monitoring & Reporting Program as part of the environmental review process.
Flow Monitoring Study - October 10, 2014
The purpose of the Study was to collect wastewater flow, rainfall, and water quality data that can be used to validate the scope and size of near-term hydraulic capacity improvement projects and evaluate the effect of recent system improvement projects on wastewater flow. View the Flow Monitoring Study (PDF).
Using the Asset Management approach, this plan introduces a risk assessment methodology for identifying gravity sewer lines for which failure presents the highest risk to the District and the communities it serves. It makes recommendations for specific project areas based on the currently know condition assessments.
Capital Improvement Strategic Plan - January 2007
A technical memorandum presents a ten-year Capital Improvement Strategic Plan (PDF). The plan summarizes projects that are recommended to begin each year.
Sewer System Replacement Master Plan - January 2007
Describes existing sewer systems operated by the district. Identifies issues related to capacity and condition, recommends projects to improve or remedy these issues, and presents associated costs. View the Sewer System Replacement Master Plan (PDF).
Lateral Policy Options - December 2006
A technical memorandum that surveys how other agencies address the maintenance and repair of private sewer pipes and evaluates potential options for implementing a testing and repair program for Ross Valley Sanitary District. View the Lateral Policy Options (PDF).
Sanitary Sewer Hydraulic Evaluation & Capacity Assurance Plan - August 2006
Evaluates the hydraulic performance of the sewer system, identifies deficiencies and recommends improvements. View the Sanitary Sewer Hydraulic Evaluation and Capacity Assurance Plan (PDF).