City of Rock Island

NPDES permit WA0501487 · Minor POTW · effective, expires 2031-02-28 · 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
95required values missing, on 6 form(s)
0of 22 forms filed late

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

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 (32)

OutfallParameterStatisticLimitMonths
EFFLTemperature, water deg. centigradeMAXIMUM report only (alert) all year
EFFLTemperature, water deg. centigradeMO AVG report only (alert) all year
EFFLOxygen, dissolved [DO]Single Rdg report only (alert) all year
EFFLBOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
EFFLBOD, 5-day, 20 deg. CWKLY AVG <= 127 lb/d all year
EFFLBOD, 5-day, 20 deg. CWKLY AVG <= 127 lb/d all year
EFFLpHDAILY MN >= 6 SU all year
EFFLpHDAILY MX <= 9 SU all year
EFFLSolids, total suspendedWKLY AVG <= 45 mg/L all year
EFFLSolids, total suspendedWKLY AVG <= 127 lb/d all year
EFFLSolids, total suspendedWKLY AVG <= 127 lb/d all year
EFFLOil and grease, hexane extr methodSingle Rdg report only (alert) all year
EFFLNitrogen, ammonia total [as N]MAXIMUM report only (alert) all year
EFFLNitrogen, Kjeldahl, total [as N]Single Rdg report only (alert) all year
EFFLPhosphorus, total [as P]Single Rdg report only (alert) all year
EFFLArsenic, total [as As]Single Rdg report only (alert) all year
EFFLE. coliSingle Rdg report only (alert) all year
EFFLSolids, total dissolvedSingle Rdg report only (alert) all year
EFFLColiform, fecal generalMO GEOMN <= 200 #/100mL all year
EFFLColiform, fecal generalWK GEOMN <= 400 #/100mL all year
EFFLFlowMAXIMUM report only (alert) all year
EFFLFlowMO AVG report only (alert) all year
EFFLFlowMO TOTAL 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
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 suspendedMO AVG report only (alert) all year
IN1FlowMAXIMUM report only (alert) all year
IN1FlowMO AVG report only (alert) all year
IN1FlowMO 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