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Crown Point WWTP, City of

Sewage treatment plant, major discharger, Crown Point, Indiana. NPDES permit IN0025763, in force until Jun 30, 2030. Last 12 months: over a limit 5 times (last July 2026), 2 required values missing, 2 of 77 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 17 days after each period: outfall 001 form A monthly (24 values), outfall 002 form C monthly (4 values), outfall 003 form C monthly (4 values), outfall 004 form C monthly (4 values), outfall 005 form C monthly (4 values), outfall 006 form C monthly (4 values), and 1 more form
Last report on file
August 2026
Oct 2024 – Sep 2025
4 values over a limit, 1 required value missing, 4 of 75 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingOutfallParameterReportedLimitOver by
June 2026001E. coli, colony forming units [CFU], daily maximum258.1 CFU/100mL≤ 235 CFU/100mL10%
June 2026007Chlorine, total residual, daily maximum.08 mg/L< .06 mg/L33%
June 2026007Chlorine, total residual, monthly average.07 mg/L< .06 mg/L17%
July 2026001Solids, total suspended, monthly average10.7 mg/L≤ 10 mg/L7%
July 2026001Solids, total suspended, maximum weekly average17 mg/L≤ 15 mg/L13%

Limits in force (67)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily average minimum≥ 6 mg/LMay–Nov001
Oxygen, dissolved [DO]daily average minimum≥ 7 mg/LJan, Feb, Mar, Apr, Dec001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 10 mg/Lall year001
Solids, total suspendedmaximum weekly average≤ 15 mg/Lall year001
Solids, total suspendedmonthly average≤ 676 lb/dall year001
Solids, total suspendedmaximum weekly average≤ 1014 lb/dall year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]monthly averagereport only (lb/d)all year001
Nitrogen, ammonia total [as N]monthly average≤ 1.4 mg/LMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 1.6 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 3.2 mg/LMay–Nov001
Nitrogen, ammonia total [as N]daily maximum≤ 3.6 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 94.6 lb/dMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 108 lb/dJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 216 lb/dMay–Nov001
Nitrogen, ammonia total [as N]daily maximum≤ 243 lb/dJan, Feb, Mar, Apr, Dec001
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year001
Phosphorus, total [as P]monthly averagereport only (lb/d)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
E. coli, colony forming units [CFU]monthly geometric mean≤ 125 CFU/100mLApr–Oct001
E. coli, colony forming units [CFU]daily maximum≤ 235 CFU/100mLApr–Oct001
Mercury, total recoverablemonthly average≤ 1.3 ng/LFeb, Apr, Jun, Aug, Oct, Dec001
Mercury, total recoverabledaily maximum≤ 3.2 ng/LFeb, Apr, Jun, Aug, Oct, Dec001
Mercury, total recoverablemonthly average≤ .000088 lb/dFeb, Apr, Jun, Aug, Oct, Dec001
Mercury, total recoverabledaily maximum≤ .00022 lb/dFeb, Apr, Jun, Aug, Oct, Dec001
Mercury, total recoverabledaily maximumreport only (ng/L)Feb, Apr, Jun, Aug, Oct, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 15 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 676 lb/dall year001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 1014 lb/dall year001
Phosphorus, total percent removalmonthly average minimum≥ 65 %all year001
Flow, totalmonthly totalreport only (Mgal/mo)all year001
Durationmonthly totalreport only (hr/mo)all year002
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (Mgal)all year002
Precipitation, monthly accumulationmonthly totalreport only (in/mo)all year002
Discharge event observation [Visual Monitoring]monthly totalreport only (#/mo)all year002
Durationmonthly totalreport only (hr/mo)all year003
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (Mgal)all year003
Precipitation, monthly accumulationmonthly totalreport only (in/mo)all year003
Discharge event observation [Visual Monitoring]monthly totalreport only (#/mo)all year003
Durationmonthly totalreport only (hr/mo)all year004
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (Mgal)all year004
Precipitation, monthly accumulationmonthly totalreport only (in/mo)all year004
Discharge event observation [Visual Monitoring]monthly totalreport only (#/mo)all year004
Durationmonthly totalreport only (hr/mo)all year005
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (Mgal)all year005
Precipitation, monthly accumulationmonthly totalreport only (in/mo)all year005
Discharge event observation [Visual Monitoring]monthly totalreport only (#/mo)all year005
Durationmonthly totalreport only (hr/mo)all year006
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (Mgal)all year006
Precipitation, monthly accumulationmonthly totalreport only (in/mo)all year006
Discharge event observation [Visual Monitoring]monthly totalreport only (#/mo)all year006
pHdaily minimumreport only (SU)all year007
pHdaily maximumreport only (SU)all year007
Solids, total suspendedmonthly averagereport only (mg/L)all year007
Solids, total suspendeddaily maximumreport only (mg/L)all year007
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year007
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year007
Chlorine, total residualmonthly average< .06 mg/LApr–Oct007
Chlorine, total residualdaily maximum< .06 mg/LApr–Oct007
E. coli, colony forming units [CFU]monthly geometric mean≤ 125 CFU/100mLApr–Oct007
E. coli, colony forming units [CFU]daily maximum≤ 235 CFU/100mLApr–Oct007
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year007
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year007
Flow, totalmonthly totalreport only (Mgal/mo)all year007

How strict are these limits?

Cited limits by parameter: Indiana's rules and the federal ones.

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