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Comment period

SGL Composites Permit Modification

Wastewater Discharge Permit - State Waste Discharge Permit

Nov. 20, 2023 - Dec. 20, 2023, 11:59 p.m.

Announcement of Availability of Draft Permit Modification

We invite your comments on draft modified permit ST0501273 for SGL Composites Plant located in Grant County.  The permit authorizes the discharge of process water to the Port of Moses Lake POTW.  The modification will increase effluent BOD5 limits to the process wastewater discharge to the Port of Moses Lake treatment system.

Visit PARIS, Ecology's Water Quality Permitting and Reporting Information System website to view the draft documents online.

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 online

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Comment by mail

Pat Hallinan
WQP - Department of Ecology
4601 N. Monroe Street
Spokane, WA 99205-1265
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Shara Joy
Permit Coordinator

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