City of Asotin

NPDES permit WA0020818 · Minor POTW · administratively continued, expires 2023-08-31 · 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)
0of 24 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 (33)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMAXIMUM report only (alert) all year
001Oxygen, dissolved [DO]MINIMUM report only (alert) all year
001Oxygen, dissolved [DO]MO AVG report only (alert) all year
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 41 lb/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 61.5 lb/d all year
001pHDAILY MN >= 6 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 <= 41 lb/d all year
001Solids, total suspendedWKLY AVG <= 61.5 lb/d all year
001Nitrogen, ammonia total [as N]MAXIMUM report only (alert) all year
001Nitrogen, ammonia total [as N]MO AVG report only (alert) all year
001Nitrogen, ammonia total [as N]MAXIMUM report only (alert) all year
001Nitrogen, ammonia total [as N]MO AVG 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
001FlowMAXIMUM report only (alert) all year
001FlowMO AVG report only (alert) all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
IN1BOD, 5-day, 20 deg. CMAXIMUM report only (alert) all year
IN1BOD, 5-day, 20 deg. CMO AVG report only (alert) all year
IN1BOD, 5-day, 20 deg. CMAXIMUM report only (alert) all year
IN1BOD, 5-day, 20 deg. CMO AVG report only (alert) all year
IN1Solids, total suspendedMAXIMUM report only (alert) all year
IN1Solids, total suspendedMO AVG report only (alert) all year
IN1Solids, total suspendedMAXIMUM report only (alert) all year
IN1Solids, total suspendedMO AVG report only (alert) all year
IN1FlowMAXIMUM report only (alert) all year
IN1FlowMO AVG 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