OTTAWA, CITY OF

NPDES permit IL0080244 · Minor NON-POTW · effective, expires 2030-03-31 · 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

EPA's file shows no filings for this permit in this window. That is a statement about the file, not about the facility.

Reporting

Reports are due about 25 days after each monitoring period ends (the most common figure among IL permits in EPA's filings — check your permit).

Limits in force (37)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 12 mg/L all year
001Solids, total suspendedDAILY MX <= 24 mg/L all year
001Solids, total suspendedMO AVG <= 225 lb/d all year
001Solids, total suspendedDAILY MX <= 450 lb/d all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG <= .9 mg/L Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= .6 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]MO AVG <= 2.3 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 3.2 mg/L Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 3.2 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 3.9 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 17 lb/d Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 11 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]MO AVG <= 43 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 60 lb/d Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 60 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 73 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]WKLY AVG <= 2.3 mg/L Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]WKLY AVG <= 1.5 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]WKLY AVG <= 43 lb/d Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]WKLY AVG <= 28 lb/d Jun, Jul, Aug
001Phosphorus, total [as P]AGM <= .5 mg/L all year
001Phosphorus, total [as P]AGM <= 9.4 lb/d all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualDAILY MX <= .05 mg/L all year
001Coliform, fecal generalDAILY MX <= 400 #/100mL all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 20 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 188 lb/d all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 375 lb/d all year
INFBOD, 5-day, 20 deg. CMO AVG report only all year
INFSolids, total suspendedMO AVG report only all year
INFFlow, in conduit or thru treatment plantMO AVG report only all year
INFFlow, in conduit or thru treatment plantDAILY MX report only 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