Alcoa Wenatchee LLC

NPDES permit WA0000680 · Major NON-POTW · effective, expires 2026-10-31 · EPA's file as of 2026-09-19

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Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
0of 85 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among WA permits in EPA's filings — check your permit).

Limits in force (47)

OutfallParameterStatisticLimitMonths
001CTemperature, water deg. centigradeDAILY MX report only (alert) all year
001CSolids, total suspendedDAILY MX report only (alert) all year
001CSolids, total suspendedDAILY MX report only (alert) all year
001CSolids, total suspendedMO AVG report only (alert) all year
001COil and grease, hexane extr methodDAILY MX report only (alert) all year
001COil and grease, hexane extr methodMO AVG <= 50 lb/d all year
001CCyanide, free [amenable to chlorination]Single Rdg report only (alert) all year
001CFluoride, total [as F]DAILY MX report only (alert) all year
001CFluoride, total [as F]DAILY MX <= 150 lb/d all year
001CFluoride, total [as F]MO AVG <= 25 lb/d all year
001CAluminum, total [as Al]DAILY MX report only (alert) all year
001CAluminum, total [as Al]DAILY MX report only (alert) all year
001CAluminum, total [as Al]MO AVG report only (alert) all year
001CBenzo[a]pyreneSingle Rdg report only (alert) all year
001CNet rate of additionof heatMO AVG <= 531 mkcal/day Jul, Aug, Sep, Oct
001CpH, maximumDAILY MX <= 9 SU (alert) all year
001CpH, minimumDAILY MN >= 6 SU (alert) all year
001CFlowDAILY MX report only (alert) all year
001CFlowMO AVG report only (alert) all year
001CDaily excursion time [min]MO TOTAL <= 446 min all year
001NSolids, total suspendedMO AVG <= 100 lb/d all year
001NAluminum, total [as Al]MO AVG <= 15 lb/d all year
00SCBOD, 5-day, 20 deg. CMO AVG <= 25 mg/L all year
00SCBOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
00SCBOD, 5-day, 20 deg. CMO AVG <= 19 lb/d all year
00SCBOD, 5-day, 20 deg. CWKLY AVG <= 34 lb/d all year
00SCSolids, total suspendedMO AVG <= 30 mg/L all year
00SCSolids, total suspendedWKLY AVG <= 45 mg/L all year
00SCSolids, total suspendedMO AVG <= 25 lb/d all year
00SCSolids, total suspendedWKLY AVG <= 34 lb/d all year
00SCChlorine, total residualDAILY MN >= .1 mg/L all year
00SCChlorine, total residualDAILY MX <= 2 mg/L all year
00SCBOD, percent removal [total]MO AV MN >= 65 % (alert) all year
00SCNumber of operating tubesDAILY MN >= 9 # all year
00SCpH, maximumDAILY MX <= 9 SU (alert) all year
00SCpH, minimumDAILY MN >= 6 SU (alert) all year
00SCColiform, fecal generalMO GEOMN <= 200 #/100mL all year
00SCColiform, fecal generalWK GEOMN <= 400 #/100mL all year
00SCFlowMO AVG report only (alert) all year
00SCSolids, suspended percent removalMO AV MN >= 65 % (alert) all year
00SCDaily excursion time [min]MO TOTAL <= 446 min all year
00SIBOD, 5-day, 20 deg. CMO AVG report only (alert) all year
00SISolids, total suspendedMO AVG report only (alert) all year
INTKSolids, total suspendedDAILY MX report only (alert) all year
INTKAluminum, total [as Al]DAILY MX report only (alert) all year
PRODTotal production - massMO AVG report only (alert) all year
RAINRainfallMO TOTAL report only (alert) all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states