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Comment Period

REC Solar Grade Silicon Permit Modification

Wastewater Discharge Permit - State Waste Discharge Permit

Oct. 29, 2019 - Nov. 28, 2019, 11:59 p.m.

We invite your comments on draft modified permit ST0008121 for REC Solar Grade Silicon, a high purity polysilicon and silane plant in Moses Lake. 

The facility discharges wastewater to the City of Moses Lake Sand Dunes Treatment Plant, a series of line evaporation ponds, lined storage pond and land application site.  The permit modification reduces sampling for sodium, land treatment site monitoring, and groundwater monitoring. 

View the legal notice and draft modified permit or visit the Water Quality Permitting and Reporting Information System (PARIS) website for more information.

We regulate wastewater released from municipalities or industries using the State Waste Discharge Permit. This permit regulates wastewater that goes into the ground (groundwater) or to a publicly owned treatment works (POTWs).  Learn more about water quality individual permits.

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Comment by mail

Pat Hallinan
4601 N. Monroe Street
Spokane, WA 99205
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Shara Joy
WQ Permits

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