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NPDES permit IN0021491 · Minor POTW · effective, expires 2028-12-31 · 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

21values over a limit
0required values missing, on 0 form(s)
0of 19 forms filed late

Last period with anything received: 2026-07-31. Most often over: Chloride [as Cl] (15), Nitrogen, ammonia total [as N] (4), Phosphorus, total [as P] (1).

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among IN permits in EPA's filings — check your permit).

Limits in force (65)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DLYAVMIN >= 6 mg/L all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 18 mg/L Jan, Feb, Mar, Apr, Dec
001Solids, total suspendedMO AVG <= 10 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Solids, total suspendedMX WK AV <= 27 mg/L Jan, Feb, Mar, Apr, Dec
001Solids, total suspendedMX WK AV <= 15 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Solids, total suspendedMO AVG <= 105.1 lb/d Jan, Feb, Mar, Apr, Dec
001Solids, total suspendedMO AVG <= 58.4 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Solids, total suspendedMX WK AV <= 157.7 lb/d Jan, Feb, Mar, Apr, Dec
001Solids, total suspendedMX WK AV <= 87.6 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Oil and grease, hexane extr methodDAILY MX report only Mar, Jun, Sep, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 1.5 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MO AVG <= 2.1 mg/L Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]MX WK AV <= 2.2 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MX WK AV <= 3.2 mg/L Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 8.8 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MO AVG <= 12.3 lb/d Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]MX WK AV <= 12.9 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MX WK AV <= 18.7 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
001Hardness, total [as CaCO3]DAILY MX report only all year
001Chloride [as Cl]MO AVG <= 344 mg/L all year
001Chloride [as Cl]DAILY MX <= 690 mg/L all year
001Chloride [as Cl]MO AVG report only all year
001Chloride [as Cl]DAILY MX report only all year
001Sulfate, total [as SO4]DAILY MX report only all year
001Copper, total recoverableDAILY MX report only Mar, Jun, Sep, Dec
001Copper, total recoverableDAILY MX report only Mar, Jun, Sep, Dec
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
001Toxicity [acute], Ceriodaphnia dubiaMAXIMUM <= 1 tox acute (alert) Dec
001Toxicity [acute], Ceriodaphnia dubiaMAXIMUM <= 1 tox acute (alert) Jan
001Toxicity [acute], Ceriodaphnia dubiaMAXIMUM <= 1 tox acute (alert) Jan
001Toxicity [chronic], Ceriodaphnia dubiaMAXIMUM <= 1 tox chronic (alert) Dec
001Toxicity [chronic], Ceriodaphnia dubiaMAXIMUM <= 1 tox chronic (alert) Jan
001Toxicity [chronic], Ceriodaphnia dubiaMAXIMUM <= 1 tox chronic (alert) Jan
001Toxicity [acute], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1 tox acute (alert) Dec
001Toxicity [acute], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1 tox acute (alert) Jan
001Toxicity [acute], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1 tox acute (alert) Jan
001Toxicity [chronic], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1 tox chronic (alert) Dec
001Toxicity [chronic], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1 tox chronic (alert) Jan
001Toxicity [chronic], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1 tox chronic (alert) Jan
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 18 mg/L Jan, Feb, Mar, Apr, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 27 mg/L Jan, Feb, Mar, Apr, Dec
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 15 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 105.1 lb/d Jan, Feb, Mar, Apr, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 58.4 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 157.7 lb/d Jan, Feb, Mar, Apr, Dec
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 87.6 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Flow, totalMO TOTAL report only all year
PRTCopper, dry weightVALUE report only Jun, Dec
PRTCadmium, dry weightVALUE report only Jun, Dec
PRTMolybdenum, sludge, total, dry weight [as Mo]VALUE report only Jun, Dec
PRTZinc, sludge, total, dry weight [as Zn]VALUE report only Jun, Dec
PRTLead, sludge, total, dry weight [as Pb]VALUE report only Jun, Dec
PRTNickel, sludge, total, dry weight [as Ni]VALUE report only Jun, Dec
PRTMercury, sludge, total, dry weight [as Hg]VALUE report only Jun, Dec

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