Experience • Engineering

Payson Water Treatment Plant

  • Client Town of Payson

  • Location Payson, Arizona

  • Services Water treatment planning and design, Treatment process evaluation and pilot testing, Membrane filtration and GAC treatment, Mechanical and piping design, Construction documents and permitting, Construction administration and inspection

Project Highlights

  • Sunrise helped the Town of Payson develop a 4.5 MGD surface water treatment plant to treat water from the C.C. Cragin surface water source to drinking water standards.

  • Supported site selection, membrane equipment selection, pilot testing, and preliminary design, including site planning, hydraulic profiles, process diagrams, facility layouts, and preliminary design documentation.

  • Designed a treatment train incorporating pretreatment, membrane filtration, granular activated carbon (GAC) polishing, water storage, backwash handling, and sludge handling facilities.

  • Addressed the potential formation of disinfection by-products (DBPs) through pilot testing that incorporated PACl pretreatment and GAC post-treatment, reducing DBP formation to levels below applicable maximum contaminant levels.

  • Sunrise later designed improvements to add two 1,000-gpm GAC vessels as a polishing step to remove total organic carbon and further reduce the potential for DBP formation.

  • GAC improvements included equipment selection, mechanical piping design, design calculations, construction documents, permitting support, construction administration, and inspection.