NACHES POTW, Naches, WA: NPDES WA0022586 discharge permit, effluent exceedances, inspections, penalties

NACHES POTW, Naches, Washington: Individual permit WA0022586, held by Town of Naches; Publicly owned treatment works; Administratively continued; issued August 20, 2014, term to September 30, 2019, by State.

• Oxygen, dissolved [DO]: 0 limits, 143 violations of any kind, 137 effluent exceedances, latest April 30, 2026, largest 51% over the limit.
• Nitrogen, ammonia total [as N]: 0 limits, 27 violations of any kind, 13 effluent exceedances, latest April 30, 2024, largest 344% over the limit.
• Temperature, water deg. centigrade: 0 limits, 19 violations of any kind, 13 effluent exceedances, latest August 31, 2025, largest 8% over the limit.
• BOD, 5-day, 20 deg. C: 0 limits, 122 violations of any kind, 4 effluent exceedances, latest November 30, 2022, largest 232% over the limit.
• Solids, total suspended: 0 limits, 298 violations of any kind.
• Flow: 0 limits, 156 violations of any kind.
• BOD, percent removal [total]: 0 limits, 39 violations of any kind.
• pH: 0 limits, 4 violations of any kind.
• Alkalinity, total [as CaCO3]: 0 limits, 4 violations of any kind.
• Oil and grease, hexane extr method: 0 limits, 4 violations of any kind.
• Nitrogen, Kjeldahl, total [as N]: 0 limits, 4 violations of any kind.
• Nitrite + Nitrate total [as N]: 0 limits, 4 violations of any kind.
• Phosphorus, total [as P]: 0 limits, 4 violations of any kind.
• Hardness, total [as CaCO3]: 0 limits, 4 violations of any kind.
• Solids, total dissolved: 0 limits, 4 violations of any kind.
• Coliform, fecal general: 0 limits, 4 violations of any kind.
• Solids, suspended percent removal: 0 limits, 2 violations of any kind.
• Copper, total [as Cu]: 0 limits, 1 violation of any kind.

Washington holds 238 Publicly owned treatment works coverages of this permit type in EPA’s file; 94 were issued before WA0022586.

Coverages issued nearest WA0022586

• 2014-07-15: FERNDALE WWTP, Ferndale: WA0022454, held by City of Ferndale
• 2014-07-17: CASTLE ROCK STP, Castle Rock: WA0022683, held by City of Castle Rock
• 2014-07-24: WISHRAM POTW, Wishram: WA0051292, held by Klickitat County PUD
• 2014-08-07: MONTESANO STP, Montesano: WA0024660, held by City of Montesano
• 2014-08-13: QUINAULT INDIAN NATION - QUEETS VILLAGE WWTP, Queets: WA0023442, held by QUEETS VILLAGE WWTP
• 2014-08-29: PORT OF SUNNYSIDE IWWTF, Sunnyside: WA0052426, held by Port of Sunnyside
• 2014-09-04: SEKIU STP, Sekiu: WA0024449, held by CLALLAM COUNTY PUBLIC WORKS
• 2014-09-23: NASELLE YOUTH CAMP STP, Naselle: WA0023728, held by Department of Social and Health Services
• 2014-10-08: RUSTLEWOOD STP, Shelton: WA0038075, held by Mason County Dept of Utilities & Waste Management
• 2014-10-13: FORT FLAGLER STATE PARK STP, Nordland: WA0039829, held by Wa State Parks & Recreation Commission

NACHES POTW among its neighbors

12 discharge permits are in the Naches River subwatershed (HUC 170300020312); WA0022586 is one. Its county: 169, 3 major; WA0022586 is minor permit.

Other permits in the Naches River subwatershed (HUC 170300020312)

• COLUMBIA REACH NORTH DEVELOPMENT, Yakima: WAR126193, minor, term to 2015-12-31
• COLUMBIA REACH PACK, Yakima: WAG435032, minor, term to 2026-12-31
• COWICHE GROWERS, INC. REVENGE CA, Yakima: WAG994738, minor, term to 2026-12-31
• HOLLINGBERY HOP STORAGE LLC PAINTED ROCKS, Yakima: WAG994459, minor, term to 2026-12-31
• LAYMAN LUMBER CO INC, Naches: WAR005581, minor, term to 2024-12-31
• NELSON DAM REMOVAL PHASE II CONVEYANCE IMPROVEMENTS, Yakima: WAR313952, minor, term to 2025-12-31
• POOR BOYS AUTO WRECKING, Yakima: WAR012019, minor, term to 2024-12-31
• POWERHOUSE RD IMPROVEMENTS & DEVELOPMENT, Yakima: WAR309395, minor, term to 2025-12-31
• PRICE COLD STORAGE APPLE VALLEY, Yakima: WAG435182, minor, term to 2026-12-31
• UFP WASHINGTON LLC, Yakima: WAR002347, minor, term to 2024-12-31