Above: A rendering of the future SASM odor control facility
The Board of the Sewerage Agency of Southern Marin (SASM) which provides wastewater treatment and sewage disposal for its six member agencies, including the City of Mill Valley, Almonte Sanitary District, Alto Sanitary District, Homestead Valley Sanitary District, Richardson Bay Sanitary District and Tamalpais Community Services District recently awarded a $17.4 million contract to the Overaa Construction Company for the first phase of improvements to the aging wastewater treatment plant.
The primary goal in this initial phase will help to ensure reliable treatment of wastewater, as well as compliance with regional, State and Federal regulations. A significant component included in this phase of the contract will be to install new, state-of-the-art equipment to control odors, which will be a significant asset to neighboring households including the Mill Valley Community Center and Mill Valley Middle School. Another key improvement will be numerous upgrades and rehabilitation of existing infrastructure to ensure compliance with the National Pollutant Discharge Elimination system (NPDES) permits which enhances water quality.
The contract award reflects the work of the SASM Board and staff in consultation with design engineers to create a Master Plan for the Sewerage Agency. “This Master Plan is a critical component of managing our Wastewater Treatment Plant for the next several decades,” said Lew Kious, President of the SASM Board. “This document develops a road map for the next 30 years of Plant improvements, including a list of necessary projects, an implementation schedule and cost estimates. It is needed to ensure that capital funds are properly allocated to improvements that will benefit SASM in both the short- and long-term.” “Odor reduction was particularly important to the Board” said Councilmember John McCauley, the City of Mill Valley’s representative to the SASM Board.
Phase 1 of the project is expected to take two years and is estimated to be completed in early 2020. Construction costs will be paid through a $38 million bond approved by the SASM Board in November 2016. The SASM Board of Directors is comprised of six member agencies – City of Mill Valley, Tamalpais Community Services District and the Alto, Almonte, Homestead Valley and Richardson Bay sanitary districts. Each member agency owns, operates and maintains its respective sanitary sewer collection system. The SASM Joint Powers Agreement owns and operates the Wastewater Treatment Plant, which is located at 450 Sycamore Avenue in Mill Valley.