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Capital Improvement Projects
Sausalito-Marin City Sanitary District continually maintains and upgrades their wastewater system to meet stringent water quality regulatory requirements and to assure reliable wastewater conveyance and treatment for our communities protecting public health, the environment and the San Francisco Bay.
Construction projects undertaken by the District include on-going annual maintenance and long-range capital improvements of the system.
| Title | Purpose | Cost | Status | Year |
|---|---|---|---|---|
| Plant Electrical Upgrade | Upgrade and/or replace the plant's electrical system to ensure reliability and safety. | $960,000 | Awarded to Fort Bragg Electric, Inc. | 2023 |
| Beach Force Main Rehab Project | Will provide force main redundancy from the Main Street Pump Station to improve conveyance system reliability, allow for inspection and cleaning of Alexander Ave force main and reduce electricity costs. | $2,640,000 | Advertising for Bids | 2023 |
| South Clarifier & Headworks Gates Rehab Project | Rehabs the District's existing clarifier providing increased capacity and redundancy for primary treatment and enhance odor control. | $2,104,753 | Awarded to C. Overaa & Company | 2023 |
| Lab/OPS Remodel | For a better work space the OPS offices and laboratory are being remodeled and updated. | $400,000 | Finalizing Construction | 2023 |
| Generator Reliability Improvements & Princess Pump Station Controls Relocation | Replacement of aged emergency backup generators at all pump stations and the treatment plant and relocation/replacement of aging controls at the Princess pump station. | $2,200,000 | Completed | 2022 |
| Coloma Pump Station Replacement Project | Combined two existing pump stations (Whiskey Springs and Scotties) to improve reliability, capacity and safety. | $6,125,065 | Completed | 2022 |
| Secondary Sediment Tanks Rehabilitation Project | Project plans and specifications for bidding the project. | $585,000 | Completed | 2018 |
| Highway Booster Pump Station Rehabilitation Project | Complete rehabilitation of sewer pump station including installation of an emergency backup generator. | $1,119,177 | Completed | 2018 |
| Digester Inspection and Cleaning | Cleaning and inspecting two digester tanks. | $83,690 | Completed | 2016 |
| Beach Force Main and Gravity Sewer Inspection Project | Cleaning and video inspecting the beach force main line as well as an existing gravity sewer. | $420,000 | Completed | 2016 |
| Disinfection Analyzer Replacement Project | Remodeling of the District's analyzer and storage rooms, and the replacement of disinfection analyzers which have reached end-of-life. | $207,000 | Completed | 2015 |
| Miscellaneous Upgrades Project and Collaboration with City and Tamalpais CSD | Repairs to the treatment plant's secondary sedimentation tanks, replacement of four force main air relief valves, installation of an emergency bypass connection at one District pump station, and structural foundation upgrades and painting of facility buildings. The District assisted partnering agencies with needed repairs including modifications to two City of Sausalito sewer pump stations and a pump replacement for the Tamalpais Community Services District. | $305,475 | Completed | 2015 |
| District Residence and Workspace Remodel Project | Complete remodel of the District's existing residence to become the District main office. Work also included upgrades to the operations control building. | $722,414 | Completed | 2015 |
| Main Street Pump Station Rehabilitation Project | Replacement of two 250 horsepower wet weather sewage pumps which have reached end-of-life, and replacement of the existing odor scrubber. | $1,127,000 | Completed | 2014 |
| Plant Outfall Maintenance and Repair Project | Replacement of 30 diffusers, repairs to the outfall pipeline anchoring system, and repair of the pipeline segment steel flange. | $93,410 | Completed | 2014 |
| Pump Station Reliability Improvements Project | Install portable pumping bypass connections at multiple District operated pumping stations, and add new gate valves at the District's rock catcher structure. | $495,579 | Completed | 2013 |
| Locust Street Sewer Pump Station Improvement Project | CIPP lining of approximately 900 linear feet of 24-inch gravity interceptor piping immediately upstream of the Locust Street pumping station. | $1,373,373 | Completed | 2012 |
| Marin City Collection System Repair | Rehabilitation of over 2 miles of sewer mains, primarily within Marin City. | $1,400,000 | Completed | 2011 |
| Primary Effluent Box, Supernatant Box and Fixed Film Reactor Pipe Gallery Repair and Rehabilitation Project | Installation of a primary effluent temporary pumping system and replacement of several fixed film reactor system pump valves, including rebuilding of three fixed film reactor pumps. Second phase of project includes rehabilitation of the primary effluent and recycle diversion structures, several sluice and knife gate replacements, rehabilitation or replacement of several sections of corroded pipe and digester gas collection piping modifications. | $1,200,000 | Completed | 2011 |
| The Sodium Bisulfite Building | Modernization and expansion of chemical storage at the plant. | $743,914 | Completed | 2010 |
| Sludge Dewatering Improvement Project | Replacement of an 18 year old belt filter press with a screw press, replacement of old chemical lines, and installation of new sodium hypochlorite day tank and polymer system. | $1,086,815 | Completed | 2009 |
| Office Foundation Improvement Project | The foundation of the forty year old building was strengthened to comply with current seismic code requirements. | $49,811 | Completed | 2009 |
| Chemical Storage Building Improvements | The project expanded and upgraded sodium hypochlorite and ferric chloride chemical storage facilities and installed a new fire detection and alarm system. | $481,843 | Completed | 2008 |
| Digester Mixing System and Sludge Handling Improvements | The project has improved the performance of the digester and improved the plant's compliance with its total suspend solids permit limits. | $200,000 | Completed | 2008 |
| Treatment Plant Odor Control Project | Installation of covers, ducting, a fan and four biotower reactors to collect foul air from plant processes and remove odorous compounds from the foul air stream. | $738,267 | Completed | 2007 |
| Fixed Film Reactor Hydraulic Distributor Replacement | The new motorized distributors provide improved control of the plants biological treatment process. | $300,000 | Completed | 2007 |
| Treatment Plant Vehicle Access Causeway Repair | The repair project rehabilitated the corroded concrete causeway, which has been exposed to salt water for 20 years. | $760,000 | Completed | 2006 |
| Electrical Equipment Upgrades | Electrical equipment upgrades were made in the older portions of the treatment plant. | $123,000 | Completed | 2005 |
| Computerized Supervisor Control and Data Acquisition System | The Computerized Supervisor Control and Data Acquisition System was installed and is continuing to be expanded. | $50,000 | Completed | 2000 |
| Beach Force Main Replacement Project | The Main Street Pump Station was rehabilitated and a new 20-inch force main was constructed from Main Street to the treatment plant. | $2,000,000 | Completed | 1999 |