WARREN WATER DISTRICT

NPDES permit IA0081418 · Minor POTW · administratively continued, expires 2026-05-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2026-05-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

1values over a limit
4required values missing, on 1 form(s)
0of 12 forms filed late

Last period with anything received: 2026-08-31. Most often over: Chlorine, total residual (1).

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 (63)

OutfallParameterStatisticLimitMonths
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspended30DA AVG <= 30 mg/L all year
001Solids, total suspended7 DA AVG <= 45 mg/L all year
001Solids, total suspended30DA AVG <= 2.5 lb/d all year
001Solids, total suspended7 DA AVG <= 3.7 lb/d all year
001Nitrogen, ammonia total [as N]30DA AVG <= 34.6 mg/L Jul
001Nitrogen, ammonia total [as N]30DA AVG <= 31.3 mg/L May
001Nitrogen, ammonia total [as N]30DA AVG <= 34.1 mg/L Jan
001Nitrogen, ammonia total [as N]30DA AVG <= 33.2 mg/L Mar
001Nitrogen, ammonia total [as N]30DA AVG <= 32.7 mg/L Aug
001Nitrogen, ammonia total [as N]30DA AVG <= 36.2 mg/L Feb
001Nitrogen, ammonia total [as N]30DA AVG <= 30 mg/L Dec
001Nitrogen, ammonia total [as N]30DA AVG <= 30.3 mg/L Jun
001Nitrogen, ammonia total [as N]30DA AVG <= 29.7 mg/L Apr
001Nitrogen, ammonia total [as N]30DA AVG <= 29.7 mg/L Oct
001Nitrogen, ammonia total [as N]30DA AVG <= 30.8 mg/L Sep
001Nitrogen, ammonia total [as N]30DA AVG <= 28.3 mg/L Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 34.6 mg/L Jul
001Nitrogen, ammonia total [as N]DAILY MX <= 31.3 mg/L May
001Nitrogen, ammonia total [as N]DAILY MX <= 34.1 mg/L Jan
001Nitrogen, ammonia total [as N]DAILY MX <= 33.2 mg/L Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 32.7 mg/L Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 36.2 mg/L Feb
001Nitrogen, ammonia total [as N]DAILY MX <= 30 mg/L Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 30.3 mg/L Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 29.7 mg/L Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 29.7 mg/L Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 30.8 mg/L Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 28.3 mg/L Nov
001Nitrogen, ammonia total [as N]30DA AVG <= 2.6 lb/d Jul
001Nitrogen, ammonia total [as N]30DA AVG <= 2.3 lb/d May
001Nitrogen, ammonia total [as N]30DA AVG <= 2.5 lb/d Jan
001Nitrogen, ammonia total [as N]30DA AVG <= 2.4 lb/d Mar
001Nitrogen, ammonia total [as N]30DA AVG <= 2.4 lb/d Aug
001Nitrogen, ammonia total [as N]30DA AVG <= 2.6 lb/d Feb
001Nitrogen, ammonia total [as N]30DA AVG <= 2.3 lb/d Dec
001Nitrogen, ammonia total [as N]30DA AVG <= 2.3 lb/d Jun
001Nitrogen, ammonia total [as N]30DA AVG <= 2.2 lb/d Apr
001Nitrogen, ammonia total [as N]30DA AVG <= 2.2 lb/d Oct
001Nitrogen, ammonia total [as N]30DA AVG <= 2.3 lb/d Sep
001Nitrogen, ammonia total [as N]30DA AVG <= 2.1 lb/d Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 2.6 lb/d Jul
001Nitrogen, ammonia total [as N]DAILY MX <= 2.3 lb/d May
001Nitrogen, ammonia total [as N]DAILY MX <= 2.5 lb/d Jan
001Nitrogen, ammonia total [as N]DAILY MX <= 2.4 lb/d Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 2.4 lb/d Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 2.6 lb/d Feb
001Nitrogen, ammonia total [as N]DAILY MX <= 2.3 lb/d Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 2.3 lb/d Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 2.2 lb/d Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 2.2 lb/d Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 2.3 lb/d Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 2.1 lb/d Nov
001Chlorine, total residual30DA AVG <= .068 mg/L all year
001Chlorine, total residualDAILY MX <= .068 mg/L all year
001Chlorine, total residual30DA AVG <= .005 lb/d all year
001Chlorine, total residualDAILY MX <= .005 lb/d all year
001E. coliGEO MEAN <= 126 #/100mL Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, carbonaceous [5 day, 20 C]30DA AVG <= 25 mg/L all year
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 40 mg/L all year
001BOD, carbonaceous [5 day, 20 C]30DA AVG <= 2.1 lb/d all year
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 3.3 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