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NPDES permit IN0020001 · Minor POTW · effective, expires 2029-02-28 · 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
0required values missing, on 0 form(s)
1of 33 forms filed late

Last period with anything received: 2026-07-31. Most often over: E. coli, colony forming units [CFU] (2).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (46)

OutfallParameterStatisticLimitMonths
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedMX WK AV <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 75.1 lb/d all year
001Solids, total suspendedMX WK AV <= 112.7 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 3.3 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MO AVG <= 4.4 mg/L Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]MX WK AV <= 5 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MX WK AV <= 6.6 mg/L Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 8.3 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MO AVG <= 11 lb/d Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]MX WK AV <= 12.5 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MX WK AV <= 16.5 lb/d Jan, Feb, Mar, Apr, Dec
001Phosphorus, total [as P]MO AVG <= 1 mg/L all year
001Phosphorus, total [as P]MO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Chlorine, total residualMO AVG < .06 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
001Chlorine, total residualDAILY MX < .06 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
001Chlorine, total residualDAILY MN >= .5 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
001Chlorine, total residualDAILY MX report only Apr, May, Jun, Jul, Aug, Sep, Oct
001E. coli, colony forming units [CFU]MO GEO <= 125 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001E. coli, colony forming units [CFU]DAILY MX <= 235 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 62.6 lb/d all year
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 100.1 lb/d all year
001Phosphorus, total percent removalMO AV MN report only all year
001Flow, totalMO TOTAL report only all year
004pHDAILY MN report only all year
004pHDAILY MX report only all year
004Solids, total suspendedMO AVG report only all year
004Solids, total suspendedDAILY MX report only all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004Chlorine, total residualMO AVG < .06 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
004Chlorine, total residualDAILY MX < .06 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
004E. coli, colony forming units [CFU]MO GEO <= 125 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
004E. coli, colony forming units [CFU]DAILY MX <= 235 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
004BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
004BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
004Flow, totalMO TOTAL report only all year
101DurationMO TOTAL report only all year
101Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
101Precipitation, monthly accumulationMO TOTAL report only all year
101Discharge event observation [Visual Monitoring]MO TOTAL 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