City of Duvall

NPDES permit WA0029513 · Major POTW · administratively continued, expires 2023-02-28 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

0values over a limit
0required values missing, on 0 form(s)
2of 22 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (46)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeAVERAGE report only (alert) all year
001Temperature, water deg. centigradeDAILY MX report only (alert) all year
001Oxygen, dissolved [DO]AVERAGE report only (alert) all year
001Oxygen, dissolved [DO]DAILY MX report only (alert) all year
001pHDAILY MN >= 6 SU all year
001Solids, total suspendedAVERAGE <= 30 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedAVERAGE <= 325 lb/d all year
001Solids, total suspendedWKLY AVG <= 488 lb/d all year
001Nitrogen, ammonia total [as N]AVERAGE report only (alert) Jan, Feb, Mar, Apr, May, Jun, Jul, Nov, Dec
001Nitrogen, ammonia total [as N]AVERAGE report only (alert) Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX report only (alert) Jan, Feb, Mar, Apr, May, Jun, Jul, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX report only (alert) Aug, Sep, Oct
001Nitrogen, ammonia total [as N]AVERAGE report only (alert) Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX report only (alert) Aug, Sep, Oct
001Nitrogen, Kjeldahl, total [as N]AVERAGE report only (alert) all year
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only (alert) all year
001Nitrite + Nitrate total [as N]AVERAGE report only (alert) all year
001Nitrite + Nitrate total [as N]DAILY MX report only (alert) all year
001Phosphorus, total [as P]AVERAGE report only (alert) all year
001Phosphorus, total [as P]DAILY MX report only (alert) all year
001Phosphorus, dissolved reactive [drp as P]AVERAGE report only (alert) all year
001Phosphorus, dissolved reactive [drp as P]DAILY MX report only (alert) all year
001Ultraviolet light transmittanceDAILY MN report only (alert) all year
001Coliform, fecal generalMO GEOMN <= 100 #/100mL all year
001Coliform, fecal generalWK GEOMN <= 200 #/100mL 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]AVERAGE report only (alert) Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]AVERAGE <= 271 lb/d Jan, Feb, Mar, Apr, May, Jun, Jul, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]WKLY AVG report only (alert) Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 434 lb/d Jan, Feb, Mar, Apr, May, Jun, Jul, Nov, Dec
001Solids, suspended percent removalMO AV MN >= 85 % all year
001Carbonaceous oxygen demand, % removalMO AV MN >= 85 % all year
IN1BOD, 5-day, 20 deg. CAVERAGE report only (alert) all year
IN1BOD, 5-day, 20 deg. CMAXIMUM report only (alert) all year
IN1BOD, 5-day, 20 deg. CAVERAGE report only (alert) all year
IN1BOD, 5-day, 20 deg. CMAXIMUM report only (alert) all year
IN1Solids, total suspendedAVERAGE report only (alert) all year
IN1Solids, total suspendedMAXIMUM report only (alert) all year
IN1Solids, total suspendedAVERAGE report only (alert) all year
IN1Solids, total suspendedMAXIMUM report only (alert) all year
IN1FlowAVERAGE report only (alert) all year
IN1FlowMAXIMUM report only (alert) all year
IN1BOD, carbonaceous [5 day, 20 C]AVERAGE report only (alert) all year
IN1BOD, carbonaceous [5 day, 20 C]MAXIMUM 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