Marin Water is proud of its rich history as California’s first municipal water district, established in 1912. With that distinction, comes the responsibility to address aging infrastructure. Many of the district’s pipelines are more than 100 years old. The Capital Improvement Program responsibly replaces aging and leak-prone pipelines with pipes that better withstand earthquakes and have greater overall reliability. For any construction project questions, please contact the Engineering Division at 415.945.1560.
Active Construction Projects
Fire & Fuels Management
With nearly 22,000 acres of public land within the Mount Tamalpais Watershed and the hills of west Marin under our care, the District continues to engage in critical vegetation management work. The ongoing, strategic efforts follow the District’s Biodiversity, Fire and Fuels Integrated Plan, which is designed to not only reduce the risk of devastating wildfire, but also bolster ecological health through the removal of invasive plant species. Learn more.
Pine Mountain Tanks Project
The Pine Mountain Tunnel was constructed in 1919 to convey water from Alpine Reservoir to Fairfax and San Rafael and was converted to a water storage facility in 1971 and remains in that use today. Replacing the 100-year-old tunnel with two 2-million gallon concrete tanks will enhance water system resiliency and replaces aging infrastructure on the District’s watershed. Learn more.
Lagunitas Creek Habitat Enhancement Project
This project is meant to improve spawning habitat for protected and endangered aquatic species within Lagunitas Creek. More than a dozen sites have been selected for habitat improvement, which involves the addition of hundreds of logs and thousands of tons of gravel to provide shelter as well as to create deeper, slower pools for rearing. Learn more.
San Geronimo Treatment Plant Roof Replacement
The existing roof at the San Geronimo Treatment Plant is leaky and vulnerable to fire. This project will replace the aging roof membrane with a more durable, fire-resistant roofing system to improve fire hardening of the treatment plant. Learn more.
Bon Tempe Backwash Valve Replacement Project
This project involves the installation of 24-inch and 8-inch welded steel pipe, valves, associated electrical components, and appurtenances at the Bon Tempe Treatment Plant to ensure proper functionality of the Bon Tempe Treatment Plant backwash system while enhancing the operational reliability of the water treatment infrastructure. Learn more.
Sleepy Hollow Pipeline Replacement Project
This project involves the installation of about 3,850 linear feet of pipe to replace undersized, fire flow-deficient and leak-prone cast iron pipe on Legend, Deer Hollow and Oakcrest roads, as well as The Alameda. This project will improve fire flow and seismic reliability of the system in support of the District’s Fire Flow Improvement Program, a voter-approved initiative that helps boost water flows to hydrants for emergency response purposes. Learn more.
Miracle Mile Pipeline Replacement Project
This project includes the installation of about 7,000 feet of 12-, 8- and 6-inch welded steel pipe to replace aging, leak-prone steel and cast iron pipe along Miracle Mile, a stretch of road connecting San Rafael to San Anselmo. The Miracle Mile Pipeline Replacement Project includes work on 2nd and 4th streets in San Rafael, as well as Red Hill Avenue in San Anselmo. Learn more.
Bolinas Road Pipeline Replacement Project
This project includes the installation of approximately 4,350 linear feet of 10-, 8-, 6-, and 4-inch potable water pipe with valves, fittings, laterals, and associated infrastructure in the Town of Fairfax. Marin Water is coordinating with the Town of Fairfax to reduce community impacts associated with the upcoming construction, where possible. Learn more.
Kastania Pump Station Rehabilitation Project Phase II
This project will install a single, new high efficiency pump and motor and will incorporate various new drainage features at Kastania Pump Station near Petaluma. Learn more.
Palm Avenue Pipeline Replacement Project – Fire Flow Improvement Program
This project will replace nearly 1,500 feet of leak-prone undersized cast iron pipe with new welded steel pipe as part of the District’s Fire Flow Improvement Program. Learn more.