To A New Level

First-of-a-kind technologies enable creation of a “complete removal” tertiary treatment system from a lagoon facility in central California.

Aug 14, 2014 | by Peter Lescure, P.E., and Edward C. Myers, M.S.Ch.E. |

How We Do It - Wastewater Effluent Tertiary Treatment Lagoons Filter Schreiber LLC Activated Sludge System Heron Innovators Disinfection Equipment/System Pasteurization Technology Group (PTG)

The Graton (Calif.) Community Services District (GCSD) had just been formed in July 2004 when the Regional Water Quality Control Board issued a notice of public hearing for October to upgrade its water resource recovery facility (WRRF) from secondary to tertiary discharge standards.Graton’s collection system and secondary treatment plant were built in 1979 by the Sonoma County Department of Public Works. In 1995, the county transferred all wastewater plant operations to the Sonoma County Water Agency. That agency in 2004 transferred the Graton plant to local control but continued to operate the plant through the first year, giving the Graton

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