SASM News Details

WWTP Rehabilitation Project Update for June 18, 2018

The Sewerage Agency of Southern Marin launched their 2-year, $20 million Waste Water Treatment Plant (WWTP) rehabilitation project in April 2018. Improvements include infrastructure modernization, increased reliability and efficiency, electrical upgrades, and odor reduction.

Competed work at the WWTP project during the past 3 weeks includes the following:   

  • Poured a 30ft x 30ft concrete pad to support the odor control supply fan system (Photo #1 below).    
  • The installation of a temporary odor control system prior to demolishing and replacing the existing system.
  • Removal of the mechanical screen bar system and sandblasting the influent channel #2 located within the headworks building (Photo #2 below).    
  • Installation of a 3 MGD multi-cloth disk filter to provide additional filtration of plant’s treated effluent water. This additional filtration measure is SASM’s insurance to ensure the water quality (TSS, turbidity, etc.) continues to meet WWTP permit requirements during all construction phases and activities. This portable system required a large crane to position it in place (Photo #3 below).

The next 3-week look ahead involves demolishing the existing odor control system, replacing several key isolation valves and water control gates, installing a 4,000 gal above-ground diesel fuel tank pad, and continue running electrical conduit from motor control centers to equipment and pumps. In addition, concrete repairs to primary clarifiers bays #1 and #2 and a specialized 120 mil thick coating system will be applied to the Headwork’s influent wet wells and channels.  Tricking filter #2 replacement work is scheduled to commence in late June. Work continues to progress on schedule in within budget. 

Learn more here.

 

 Workers poured a 30ft x 30ft concrete pad to support the odor control supply fan system.

Workers removed the mechanical screen bar system and sandblasted the influent channel #2 located within the headworks building.

Work crews installed a 3 MGD multi-cloth disk filter to provide additional filtration of plant’s treated effluent water.