THE UNIVERSITY OF IOWA

NPDES permit IA0069159 · Minor NON-POTW · effective, expires 2030-02-28 · 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.

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

2values over a limit
12required values missing, on 3 form(s)
0of 44 forms filed late

Last period with anything received: 2026-07-31. Most often over: Chlorine, total residual (2).

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among IA permits in EPA's filings — check your permit).

Limits in force (24)

OutfallParameterStatisticLimitMonths
003pHDAILY MN >= 6 SU all year
003pHDAILY MX <= 9.6 SU all year
003Chlorine, total residual30DA AVG <= .153 mg/L all year
003Chlorine, total residualDAILY MX <= .229 mg/L all year
003Chlorine, total residual30DA AVG <= .27 lb/d all year
003Chlorine, total residualDAILY MX <= .275 lb/d all year
017pHDAILY MN >= 6 SU all year
017pHDAILY MX <= 9.6 SU all year
017Chlorine, total residual30DA AVG <= .208 mg/L all year
017Chlorine, total residualDAILY MX <= .253 mg/L all year
017Chlorine, total residual30DA AVG <= .036 lb/d all year
017Chlorine, total residualDAILY MX <= .036 lb/d all year
018pHDAILY MN >= 6 SU all year
018pHDAILY MX <= 9.6 SU all year
018Chlorine, total residual30DA AVG <= .153 mg/L all year
018Chlorine, total residualDAILY MX <= .229 mg/L all year
018Chlorine, total residual30DA AVG <= .013 lb/d all year
018Chlorine, total residualDAILY MX <= .013 lb/d all year
019pHDAILY MN >= 6.4 SU all year
019pHDAILY MX <= 9.6 SU all year
019Chlorine, total residual30DA AVG <= .344 mg/L all year
019Chlorine, total residualDAILY MX <= .344 mg/L all year
019Chlorine, total residual30DA AVG <= .019 lb/d all year
019Chlorine, total residualDAILY MX <= .019 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