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Clean Water Act discharge permit · NPDES WA0052094

LAKE WENATCHEE POTW, Leavenworth, WA: NPDES WA0052094 discharge permit, effluent exceedances, inspections, penalties

LAKE WENATCHEE POTW, held by Chelan Co PUD #1 Lake Wenatchee, holds NPDES permit WA0052094. EPA’s file records it issued May 1, 2010 and expiring June 30, 2015. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedLAKE WENATCHEE POTW
Permittee as filedChelan Co PUD #1 Lake Wenatchee
NPDES IDWA0052094
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedMay 1, 2010
Expiration dateJune 30, 2015
Issuing agencyState
AddressLeavenworth, WA 98826
SubwatershedBeaver Creek-Wenatchee River (HUC 170200110701)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Chlorine, total residual06847August 31, 2022250% over the limit
pH0513December 31, 2018
Solids, total suspended01102November 30, 202070% over the limit
Coliform, fecal general0141November 30, 20104% over the limit
Manganese, total [as Mn]04970
Sulfate [as S]04940
Alkalinity, total [as CaCO3]04940
Nitrogen, inorganic total04940
Calcium, total [as Ca]04940
Magnesium, total [as Mg]04940
Sodium, total [as Na]04940
Potassium, total [as K]04940
Iron, total [as Fe]04940
Flow02170
Nitrogen, total [as N]01480
BOD, 5-day, dissolved01040
Chloride [as Cl]0560
Coliform, total general0450
Phosphorus, total [as P]0440
Conductivity0280
Solids, total dissolved0220
Oxygen, dissolved [DO]0210
BOD, 5-day, 20 deg. C0200
Nitrogen, ammonia total [as N]0200
Temperature, water deg. centigrade0170
Nitrogen, nitrate total [as N]080
Depth of pond or reservoir in feet080
Oil and grease, hexane extr method060
Nitrogen, Kjeldahl, total [as N]060
Hardness, total [as CaCO3]060
pH, maximum040
pH, minimum040
Nitrite + Nitrate total [as N]020

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES WA0052094.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

This public-records page covers NPDES permit WA0052094 for the Lake Wenatchee POTW in Leavenworth, WA, held by Chelan Co PUD #1 Lake Wenatchee, with the permit status listed as administratively continued. The page lists 33 pollutants on file, 4 under a numeric limit, and 4 with an effluent exceedance, within the Beaver Creek-Wenatchee River subwatershed (HUC 170200110701).