RENSSELAER WWTP, CITY OF

NPDES permit IN0024414 · Major POTW · effective, expires 2030-04-30 · 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

1values over a limit
2required values missing, on 1 form(s)
12of 121 forms filed late

Last period with anything received: 2026-07-31. Most often over: E. coli, colony forming units [CFU] (1).

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 (85)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DLYAVMIN >= 6 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Oxygen, dissolved [DO]DLYAVMIN >= 5 mg/L Jan, Feb, Mar, Apr, Dec
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 <= 1001.4 lb/d all year
001Solids, total suspendedMX WK AV <= 1502.1 lb/d all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 2.4 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MO AVG <= 3.6 mg/L Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]MX WK AV <= 3.6 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MX WK AV <= 5.4 mg/L Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 80.1 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MO AVG <= 120.2 lb/d Jan, Feb, Mar, Apr, Dec
001Nitrogen, ammonia total [as N]MX WK AV <= 120.2 lb/d May, Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MX WK AV <= 180.3 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
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) Aug
001Toxicity [acute], Ceriodaphnia dubiaMAXIMUM <= 1 tox acute (alert) Sep
001Toxicity [chronic], Ceriodaphnia dubiaMAXIMUM <= 1.7 tox chronic (alert) Aug
001Toxicity [chronic], Ceriodaphnia dubiaMAXIMUM <= 1.7 tox chronic (alert) Sep
001Toxicity [acute], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1 tox acute (alert) Aug
001Toxicity [acute], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1 tox acute (alert) Sep
001Toxicity [chronic], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1.7 tox chronic (alert) Aug
001Toxicity [chronic], Pimephales promelas [Fathead Minnow]MAXIMUM <= 1.7 tox chronic (alert) Sep
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 <= 834.5 lb/d all year
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 1335.2 lb/d all year
001Flow, totalMO TOTAL report only all year
003DurationMO TOTAL report only all year
003Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
003Precipitation, monthly accumulationMO TOTAL report only all year
003Discharge event observation [Visual Monitoring]MO TOTAL report only all year
006DurationMO TOTAL report only all year
006Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
006Precipitation, monthly accumulationMO TOTAL report only all year
006Discharge 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
008DurationMO TOTAL report only all year
008Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
008Precipitation, monthly accumulationMO TOTAL report only all year
008Discharge 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
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
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
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
023DurationMO TOTAL report only all year
023Overflow volume [SS0 volume, CSO volume]MO TOTAL report only all year
023Precipitation, monthly accumulationMO TOTAL report only all year
023Discharge event observation [Visual Monitoring]MO TOTAL report only all year
026pHDAILY MN report only all year
026pHDAILY MX report only all year
026Solids, total suspendedMO AVG report only all year
026Solids, total suspendedDAILY MX report only all year
026Flow, in conduit or thru treatment plantMO AVG report only all year
026Flow, in conduit or thru treatment plantDAILY MX report only all year
026Chlorine, total residualMO AVG < .06 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
026Chlorine, total residualDAILY MX < .06 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
026E. coli, colony forming units [CFU]MO GEO <= 125 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
026E. coli, colony forming units [CFU]DAILY MX <= 235 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
026BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
026BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
026Flow, totalMO 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