City of Enumclaw

NPDES permit WA0020575 · Major POTW · effective, expires 2030-06-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file
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
17required values missing, on 9 form(s)
0of 28 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 (53)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeSingle Rdg report only (alert) all year
001BOD, 5-day, 20 deg. CMO AVG <= 16.1 mg/L May, Jun, Jul, Aug, Sep, Oct
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001BOD, 5-day, 20 deg. CWKLY AVG <= 24.2 mg/L May, Jun, Jul, Aug, Sep, Oct
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001BOD, 5-day, 20 deg. CMO AVG <= 690 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001BOD, 5-day, 20 deg. CMO AVG <= 336 lb/d May, Jun, Jul, Aug, Sep, Oct
001BOD, 5-day, 20 deg. CWKLY AVG <= 1035 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001BOD, 5-day, 20 deg. CWKLY AVG <= 504 lb/d May, Jun, Jul, Aug, Sep, Oct
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 8.5 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 690 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedMO AVG <= 626 lb/d May, Jun, Jul, Aug, Sep, Oct
001Solids, total suspendedWKLY AVG <= 1035 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001Solids, total suspendedWKLY AVG <= 938 lb/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 1.6 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MAXIMUM report only (alert) Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG report only (alert) Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MAXIMUM report only (alert) Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG report only (alert) May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG report only (alert) Jan, Feb, Mar, Apr, Nov, Dec
001Phosphorus, total [as P]MAXIMUM report only (alert) all year
001Phosphorus, total [as P]MO AVG report only (alert) all year
001Phosphorus, dissolved reactive [drp as P]MO AVG <= 1 mg/L May, Jun, Jul, Aug, Sep, Oct
001Phosphorus, dissolved reactive [drp as P]MAXIMUM report only (alert) Jan, Feb, Mar, Apr, Nov, Dec
001Phosphorus, dissolved reactive [drp as P]WKLY AVG <= 1.5 mg/L May, Jun, Jul, Aug, Sep, Oct
001Phosphorus, dissolved reactive [drp as P]MO AVG report only (alert) Jan, Feb, Mar, Apr, Nov, Dec
001Copper, total [as Cu]MAXIMUM report only (alert) all year
001Copper, total [as Cu]MO AVG report only (alert) all year
001Zinc, total [as Zn]MAXIMUM report only (alert) all year
001Zinc, total [as Zn]MO AVG report only (alert) all year
001PentachlorophenolSingle Rdg report only (alert) all year
001Di[2-ethylhexyl] phthalate [DEHP]Single Rdg report only (alert) all year
001BOD, percent removal [total]MO AV MN >= 85 % all year
001Coliform, fecal generalMO GEOMN <= 100 #/100mL all year
001Coliform, fecal generalWK GEOMN <= 200 #/100mL all year
001FlowAVERAGE report only (alert) all year
001FlowMAXIMUM report only (alert) all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
INFLBOD, 5-day, 20 deg. CMAXIMUM report only (alert) all year
INFLBOD, 5-day, 20 deg. CMO AVG report only (alert) all year
INFLBOD, 5-day, 20 deg. CMAXIMUM report only (alert) all year
INFLBOD, 5-day, 20 deg. CMO AVG report only (alert) all year
INFLSolids, total suspendedMAXIMUM report only (alert) all year
INFLSolids, total suspendedMO AVG report only (alert) all year
INFLSolids, total suspendedMAXIMUM report only (alert) all year
INFLSolids, total suspendedMO AVG report only (alert) all year
INFLFlowMAXIMUM report only (alert) May, Jun, Jul, Aug, Sep, Oct
INFLFlowMAXIMUM report only (alert) Jan, Feb, Mar, Apr, Nov, Dec
INFLFlowMO AVG report only (alert) May, Jun, Jul, Aug, Sep, Oct
INFLFlowMO AVG report only (alert) Jan, Feb, Mar, Apr, Nov, Dec

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