FAIRMOUNT WWTP, TOWN OF

NPDES permit IN0021105 · Minor POTW · effective, expires 2026-12-31 · 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

2values over a limit
94required values missing, on 18 form(s)
18of 198 forms filed late

Last period with anything received: 2026-07-31. Most often over: Nitrogen, ammonia total [as N] (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 (107)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DLYAVMIN >= 6 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Oxygen, dissolved [DO]DLYAVMIN >= 5.5 mg/L Jan, Feb, Mar, Apr, Dec
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 16 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 <= 24 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 <= 401 lb/d Jan, Feb, Mar, Apr, Dec
001Solids, total suspendedMO AVG <= 250 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Solids, total suspendedMX WK AV <= 601 lb/d Jan, Feb, Mar, Apr, Dec
001Solids, total suspendedMX WK AV <= 376 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
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 <= 2.3 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 <= 37.6 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MO AVG <= 52.6 lb/d Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]MX WK AV <= 57.6 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MX WK AV <= 80.1 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 <= 16 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 <= 24 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 <= 401 lb/d Jan, Feb, Mar, Apr, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 250 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 601 lb/d Jan, Feb, Mar, Apr, Dec
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 376 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Phosphorus, total percent removalMO AV MN >= 70 % all year
001Flow, totalMO TOTAL report only all year
002DurationMO TOTAL report only all year
002Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
002Precipitation, monthly accumulationMO TOTAL report only all year
002Discharge event observation [Visual Monitoring]MO TOTAL report only all year
004DurationMO TOTAL report only all year
004Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
004Precipitation, monthly accumulationMO TOTAL report only all year
004Discharge event observation [Visual Monitoring]MO TOTAL report only all year
005DurationMO TOTAL report only all year
005Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
005Precipitation, monthly accumulationMO TOTAL report only all year
005Discharge event observation [Visual Monitoring]MO TOTAL report only all year
007DurationMO TOTAL report only all year
007Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
007Precipitation, monthly accumulationMO TOTAL report only all year
007Discharge event observation [Visual Monitoring]MO TOTAL report only all year
009DurationMO TOTAL report only all year
009Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
009Precipitation, monthly accumulationMO TOTAL report only all year
009Discharge event observation [Visual Monitoring]MO TOTAL report only all year
010DurationMO TOTAL report only all year
010Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
010Precipitation, monthly accumulationMO TOTAL report only all year
010Discharge event observation [Visual Monitoring]MO TOTAL report only all year
011DurationMO TOTAL report only all year
011Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
011Precipitation, monthly accumulationMO TOTAL report only all year
011Discharge event observation [Visual Monitoring]MO TOTAL report only all year
012DurationMO TOTAL report only all year
012Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
012Precipitation, monthly accumulationMO TOTAL report only all year
012Discharge event observation [Visual Monitoring]MO TOTAL report only all year
013DurationMO TOTAL report only all year
013Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
013Precipitation, monthly accumulationMO TOTAL report only all year
013Discharge event observation [Visual Monitoring]MO TOTAL report only all year
014DurationMO TOTAL report only all year
014Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
014Precipitation, monthly accumulationMO TOTAL report only all year
014Discharge event observation [Visual Monitoring]MO TOTAL report only all year
015DurationMO TOTAL report only all year
015Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
015Precipitation, monthly accumulationMO TOTAL report only all year
015Discharge event observation [Visual Monitoring]MO TOTAL report only all year
016DurationMO TOTAL report only all year
016Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
016Precipitation, monthly accumulationMO TOTAL report only all year
016Discharge event observation [Visual Monitoring]MO TOTAL report only all year
017DurationMO TOTAL report only all year
017Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
017Precipitation, monthly accumulationMO TOTAL report only all year
017Discharge event observation [Visual Monitoring]MO TOTAL report only all year
018DurationMO TOTAL report only all year
018Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
018Precipitation, monthly accumulationMO TOTAL report only all year
018Discharge event observation [Visual Monitoring]MO TOTAL report only all year
019DurationMO TOTAL report only all year
019Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
019Precipitation, monthly accumulationMO TOTAL report only all year
019Discharge event observation [Visual Monitoring]MO TOTAL report only all year
020DurationMO TOTAL report only all year
020Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
020Precipitation, monthly accumulationMO TOTAL report only all year
020Discharge event observation [Visual Monitoring]MO TOTAL report only all year
021DurationMO TOTAL report only all year
021Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
021Precipitation, monthly accumulationMO TOTAL report only all year
021Discharge event observation [Visual Monitoring]MO TOTAL report only all year

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