Full Description

The U.S. Environmental Protection Agency (EPA) plans to review National PollutantDischarge Elimination System (NPDES) permits on a watershed basis and toincorporate Total Maximum Daily Load (TMDL) waste load allocations into futureNPDES permits. This will allow the EPA to assess NPDES permits in a comprehensiveframework. All NPDES permits within a defined watershed will be evaluated infive-year watershed cycles. The City of Phoenix and its Subregional OperatingGroup (SROG) partners, Glendale, Mesa, Scottsdale and Tempe, operate the 91stAvenue Wastewater Treatment Plant (WWTP) which discharges highly treated effluentto the Salt River. SROG and the 91st Avenue WWTP are in the Middle Gila RiverWatershed (MGRW). SROG initiated the 91st Avenue WWTP Reclaimed Water Study inresponse to an increase in Surface Water Quality Standards and NPDES permitmonitoring requirements. The Reclaimed Water Study identified cost effective,environmentally sound water reuse alternatives as opposed to constructedimprovements at the 91st Avenue WWTP. As a part of the Reclaimed Water Study, 63water reuse alternatives were evaluated. These alternatives and the effect on afuture NPDES permit were presented to the EPA. This paper discusses the resultsof the MGRW study, of which the 91st Avenue WWTP Reclaimed Water Study was apart. Includes 2 references.

Product Details

Edition: Vol. - No. Published: 01/01/2000 Number of Pages: 6File Size: 1 file , 190 KB