King County Dept of Natural Resources and Parks

NPDES permit WA0029581 · Major POTW · administratively continued, expires 2020-07-30 · 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.

This permit expired on 2020-07-30 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

1values over a limit
0required values missing, on 0 form(s)
0of 66 forms filed late

Last period with anything received: 2026-07-31. Most often over: Coliform, fecal general (1).

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 (80)

OutfallParameterStatisticLimitMonths
001Solids, total suspendedAVERAGE <= 30 mg/L all year
001Solids, total suspendedAVERAGE <= 30 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedAVERAGE <= 36000 lb/d all year
001Solids, total suspendedAVERAGE <= 36000 lb/d all year
001Solids, total suspendedWKLY AVG <= 54000 lb/d all year
001Solids, total suspendedWKLY AVG <= 54000 lb/d all year
001Nitrogen, ammonia total [as N]AVERAGE report only (alert) all year
001Nitrogen, ammonia total [as N]AVERAGE report only (alert) all year
001Nitrogen, ammonia total [as N]AVERAGE report only (alert) all year
001Nitrogen, ammonia total [as N]AVERAGE report only (alert) all year
001Nitrogen, Kjeldahl, total [as N]AVERAGE report only (alert) all year
001Nitrogen, Kjeldahl, total [as N]AVERAGE report only (alert) all year
001Nitrite + Nitrate total [as N]AVERAGE report only (alert) all year
001Nitrite + Nitrate total [as N]AVERAGE report only (alert) all year
001Phosphorus, total [as P]AVERAGE report only (alert) all year
001Phosphorus, total [as P]AVERAGE report only (alert) all year
001Phosphorus, dissolved reactive [drp as P]AVERAGE report only (alert) all year
001Phosphorus, dissolved reactive [drp as P]AVERAGE report only (alert) all year
001pH, maximumDAILY MX <= 9 SU all year
001pH, maximumDAILY MX <= 9 SU all year
001pH, minimumDAILY MN >= 6 SU all year
001pH, minimumDAILY MN >= 6 SU all year
001Coliform, fecal generalMO GEOMN <= 200 #/100mL all year
001Coliform, fecal generalMO GEOMN <= 200 #/100mL all year
001Coliform, fecal generalWK GEOMN <= 400 #/100mL all year
001Coliform, fecal generalWK GEOMN <= 400 #/100mL all year
001FlowAVERAGE report only (alert) all year
001FlowAVERAGE report only (alert) all year
001BOD, carbonaceous [5 day, 20 C]AVERAGE <= 25 mg/L all year
001BOD, carbonaceous [5 day, 20 C]AVERAGE <= 25 mg/L all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 40 mg/L all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 40 mg/L all year
001BOD, carbonaceous [5 day, 20 C]AVERAGE <= 30000 lb/d all year
001BOD, carbonaceous [5 day, 20 C]AVERAGE <= 30000 lb/d all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 48000 lb/d all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 48000 lb/d all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
001Carbonaceous oxygen demand, % removalMO AV MN >= 85 % all year
001Carbonaceous oxygen demand, % removalMO AV MN >= 85 % all year
001AChlorine, total residualAVERAGE <= 500 ug/L all year
001AChlorine, total residualAVERAGE <= 500 ug/L all year
001AChlorine, total residualMAXIMUM <= 750 ug/L all year
001AChlorine, total residualMAXIMUM <= 750 ug/L all year
002ASolids, total suspendedAVERAGE <= 20 mg/L all year
002ASolids, total suspendedAVERAGE <= 20 mg/L all year
002ADurationMAXIMUM <= 4 hr all year
002ADurationMAXIMUM <= 4 hr all year
002AChlorine, total residualAVERAGE <= 95 ug/L all year
002AChlorine, total residualAVERAGE <= 95 ug/L all year
002ApH, maximumDAILY MX <= 9 SU all year
002ApH, maximumDAILY MX <= 9 SU all year
002ApH, minimumDAILY MN >= 6 SU all year
002ApH, minimumDAILY MN >= 6 SU all year
002AColiform, fecal generalDAILY MX <= 200 #/100mL all year
002AColiform, fecal generalDAILY MX <= 200 #/100mL all year
002AFlowDAILY MX report only (alert) all year
002AFlowDAILY MX report only (alert) all year
002ABOD, carbonaceous [5 day, 20 C]AVERAGE <= 20 mg/L all year
002ABOD, carbonaceous [5 day, 20 C]AVERAGE <= 20 mg/L all year
002BTurbidityDAILY MX report only (alert) all year
002BTurbidityDAILY MX report only (alert) all year
002CTurbidityDAILY MX report only (alert) all year
002CTurbidityDAILY MX report only (alert) all year
002CFlowAVERAGE <= 500 cfs all year
002CFlowAVERAGE <= 500 cfs all year
IN1BOD, 5-day, 20 deg. CAVERAGE report only (alert) all year
IN1BOD, 5-day, 20 deg. CAVERAGE report only (alert) all year
IN1BOD, 5-day, 20 deg. CAVERAGE report only (alert) all year
IN1BOD, 5-day, 20 deg. CAVERAGE report only (alert) all year
IN1Solids, total suspendedAVERAGE report only (alert) all year
IN1Solids, total suspendedAVERAGE report only (alert) all year
IN1Solids, total suspendedAVERAGE report only (alert) all year
IN1Solids, total suspendedAVERAGE report only (alert) all year
IN1BOD, carbonaceous [5 day, 20 C]AVERAGE report only (alert) all year
IN1BOD, carbonaceous [5 day, 20 C]AVERAGE report only (alert) all year
IN1BOD, carbonaceous [5 day, 20 C]AVERAGE report only (alert) all year
IN1BOD, carbonaceous [5 day, 20 C]AVERAGE 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