SASM News Details

WWTP Rehabilitation Project Update for August, 2019


Progress continues on the Waste Water Treatment Plant rehabilitation project. The project is now 77% complete.

The required seeding process prior commissioning the new odor control system is 99% complete with the air balancing completed on 7/8/19.

The new odor control (aka: Bio-Scrubber) system for the headworks building is now fully operational and continues to meet the designed Hydrogen Sulfide exhaust removal efficiency of greater than 99%. Hydrogen Sulfide is the source of the rotten egg smell that people notice near the plant, and the new Bio-Scrubber is working hard to significantly reduce these emissions.

The following ongoing work activities are progressing well and on schedule:   

1) Trickling Filter (TF) #1 was demolished and removed down to the concrete foundation. A new aluminum perimeter frame structure was erected plus new fiber reinforced support beams for the new media has been installed.  Over 60% of the new trickling filter media has delivered and installed.  TF #1 is scheduled to be completed by mid-September. 

2) The new endurflex coating to Primary Clarifiers #3 & #4 Improvements are completed.  The remaining work involves installing all new mechanical drives, cross-collectors, and motor which will be completed by mid-September.   

3) Emergency generators replacement work is tentatively planned to start in mid-August. 

4) Interior painting work within the Headworks and Maintenance buildings has been completed.

5)  A new Motor Control Center (MCC-4) located within the Maintenance Building to distribute power to Primary Clarifiers #1-#4  is 50% complete and will be completed by mid-October and.

6) The replacement of outdoor lighting with energy efficient LED fixtures is 95% completed and will be completed in August.

As of mid-July 2019, the project work completion is at 77% and the contract time completion is at 70%.   Overall, this construction project remains on schedule and on budget. 

Work completed during 2018 includes: 

  • Concrete repairs plus a special polyurethane coating to Wet Wells #1 & #2, Pista Grit Chamber, and Influent Channels #1 & #2.  
  • The mechanical equipment replacement of Screen Bar #1 & #2, Grit piping and pumps #1 & #2, Grit Classifier, Conveyor Belt System, and Sump Pumps #1 & #2, and four large sluice gate replacements.
  • Trickling Filter #2 was replaced and placed in operation. 
  • The associated piping system for Primary Clarifiers #1-4, plus mechanical gears, rails, chain, flights, scum trough, and three-water piping to Primary Clarifiers #1 and #2.
  • Phase A and B installation of Motor Control Center (MCC-2) which distributes power to the various process equipment within the Headworks Building
  • Installed a 4,000 gallon above-ground storage diesel fuel tank, piping, and leak detection system for the emergency generators.
  • Commissioning of Motor Control Center (MCC-2)


Learn more here.