Woodland Area Gravity Sewer Improvement Project (#956)

An Initial Study/Mitigated Negative Declaration (IS/MND) for the Woodland Area Gravity Sewer Improvement Project (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 Kent Woodlands, within the County of Marin. The Project plans to replace approximately 4,277 linear feet of existing sanitary sewer mains ranging in size from 6-inch (in.) to 8-in. of vitrified clay pipe with 8-in. to 12-in. high-density polyethylene (HDPE) pipe via pipe bursting, open cut, and jack-and-bore or directional drilling methods. In addition, work will be completed in or near Tamalpais Creek to remove the old suspended pipes and to remove existing pipes that are exposed in the Tamalpais Creek channel. The Tamalpais Creek channel will be restored and replaced with constructed riffles. Following the completion of the constructed riffle, the equipment will be removed from the channel bed. The access route will be relandscaped and vegetated, and areas of excavation will be covered with erosion-control fabric. 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 April 5, 2023. 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 Woodland Area Gravity Sewer Improvement Project.

The Notice of Determination (NOD) for the Woodland Area Gravity Sewer Improvement Project (#956) was signed on April 21, 2023.

The Final Initial Study/Mitigated Negative Declaration (FIS/MND) for the Woodland Area Gravity Sewer Improvement Project (#956) was adopted by the Ross Valley Sanitary District Board of Directors on April 20, 2023.

Click here to also see the Mitigation Monitoring & Reporting Program as part of the environmental review process.

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.