1. SBSA

2. SBSA treatment facility
San Mateo - Hayward Bridge
SBSA Outfall Diffuser
approx. location
SBSA treatment facility

4. Aeration basins Secondary clarifiers Fixed film reactors
Digestion (3 units)
Dual media filters
Influent lift station
Processes not visible:
Primary sedimentation
Chlorination/Chlorine contact tank
Dechlorination
Effluent pumping
Gravity thickeners
Centrifuge (solids dewatering)

5. Influent Pumping

6. Primary Sedimentation

7. Fixed Film Reactors

8. Aeration Basins
(activated sludge)

9. Secondary Clarifiers

10. Dual Media Filters

11. Disinfection with Sodium Hypochlorite

12. Dechlorination with Sodium Bisulfite

13. Effluent Pumping to S. F. Bay

14. Gravity Sludge Thickening

15. Anaerobic Digestion

16. Biosolids Dewatering by Centrifuge

17. sun-dried Biosolids