WEST DES MOINES WATER WORKS

NPDES permit IA0053682 · Minor NON-POTW · effective, expires 2030-07-31 · 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

4values over a limit
0required values missing, on 0 form(s)
1of 11 forms filed late

Last period with anything received: 2026-07-31. Most often over: Chlorine, total residual (4).

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 (7)

OutfallParameterStatisticLimitMonths
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Nitrogen, nitrate total [as N]DAILY MX <= 9.5 mg/L all year
001Chlorine, total residual30DA AVG <= .017 mg/L all year
001Chlorine, total residualDAILY MX <= .029 mg/L all year
001Chlorine, total residual30DA AVG <= .071 lb/d all year
001Chlorine, total residualDAILY MX <= .122 lb/d 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