City of Huntington Beach Well #9 Wellhead Treatment

Huntington Beach, CA


PACE provided multiple phases of project development, lab services, piloting, concept development, water treatment facility engineering, planning division graphics, and worked with the City staff through startup and operations support services on this innovative and unique treatment system. Sophisticated desktop, bench, pilot scale, and full-scale demonstration was first provided for confirmation of the proposed process for innovative biological treatment of reduced (non-oxidized) drinking water quality constituents in the potable supply at Well 9 and other City wells. This pilot testing confirmed mechanisms for biological oxidation of hydrogen sulfide. This important and unique process was presented at several national conferences including AWWA. A complete 3,000 gpm (4.3 MGD) treatment facility was then designed including a Granular Activated Carbon (GAC) Filtration System and media, with complete structural, mechanical, electrical, and controls integration design for reliable and simple operation. A custom filtration control panel design was also provided. PACE provided all project bid documents, permitting, coordination with Southern California Edison, and assisted the City with the bid process and construction support services.


Key Features:

  • Granular Activated Carbon (GAC) filtration system
  • Water quality analysis
  • Tight site constraints
  • High capacity
  • 4.3 MGD (3000 gpm) groundwater treatment system
  • OCWD Funded
  • Treatment system piloting
  • Instrumentation and controls integration
  • Construction support services
  • Start-up and commissioning services
  • Drop bowl assemble
  • Backwash water diversion to the sewer system
  • PVC sewer pipeline



City of Huntington Beach


American Public Works Association (APWA) Southern California Chapter - 2018 APWA BEST

Water Treatment