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East Chicago Sanitary District WWTP

Sewage treatment plant, major discharger, East Chicago, Indiana. NPDES permit IN0022829 expired Jun 30, 2026; its limits still apply. Last 12 months: over a limit 10 times (last September 2026), 6 required values missing, 10 of 56 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (40 values), outfall 001 form AQ quarterly (21 values), outfall 002 form C monthly (4 values), outfall 003 form C monthly (4 values), outfall 005 form C monthly (4 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
5 values over a limit, 13 required values missing, 11 of 56 reports late

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

Period endingParameterReportedLimitOver by
October 2025E. coli, colony forming units [CFU], daily maximum691 CFU/100mL≤ 235 CFU/100mL194%
October 2025E. coli, colony forming units [CFU], daily maximum691 CFU/100mL≤ 235 CFU/100mL194%
April 2026E. coli, colony forming units [CFU], daily maximum457 CFU/100mL≤ 235 CFU/100mL94%
June 2026E. coli, colony forming units [CFU], daily maximum461 CFU/100mL≤ 235 CFU/100mL96%
June 2026Toxicity [chronic], Ceriodaphnia dubia, maximum2 tox chronic≤ 1 tox chronic100%
July 2026E. coli, colony forming units [CFU], daily maximum1120 CFU/100mL≤ 235 CFU/100mL377%
July 2026Toxicity [chronic], Ceriodaphnia dubia, maximum45.9 tox chronic≤ 1 tox chronic4490%
August 2026E. coli, colony forming units [CFU], daily maximum1300 CFU/100mL≤ 235 CFU/100mL453%
August 2026E. coli, colony forming units [CFU], monthly geometric mean288 CFU/100mL≤ 125 CFU/100mL130%
September 2026E. coli, colony forming units [CFU], daily maximum980 CFU/100mL≤ 235 CFU/100mL317%

Limits in force (85)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily average minimum≥ 7 mg/LMay–Nov001
Oxygen, dissolved [DO]daily average minimum≥ 6 mg/LJan, Feb, Mar, Apr, Dec001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 8.5 mg/Lall year001
Solids, total suspendedmaximum weekly average≤ 12.8 mg/Lall year001
Solids, total suspendedmonthly average≤ 1915.2 lb/dall year001
Solids, total suspendedmaximum weekly average≤ 2884 lb/dall year001
Oil and grease, hexane extr methoddaily maximum≤ 10 mg/Lall 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≤ 1.2 mg/LMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 1.48 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 2.79 mg/LMay–Nov001
Nitrogen, ammonia total [as N]daily maximum≤ 3.45 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 270.4 lb/dMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 333.5 lb/dJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 628.6 lb/dMay–Nov001
Nitrogen, ammonia total [as N]daily maximum≤ 777.3 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
Cyanide, free [as free]monthly average≤ .0043 mg/Lall year001
Cyanide, free [as free]daily maximum≤ .0085 mg/Lall year001
Cyanide, free [as free]monthly average≤ .54 lb/dall year001
Cyanide, free [as free]daily maximum≤ 1.1 lb/dall year001
Cyanide, free [as free]monthly averagereport only (mg/L)all year001
Cyanide, free [as free]daily maximumreport only (mg/L)all year001
Chloride [as Cl]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Chloride [as Cl]daily maximumreport only (lb/d)Mar, Jun, Sep, Dec001
Chloride [as Cl]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Sulfate, total [as SO4]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Sulfate, total [as SO4]daily maximumreport only (lb/d)Mar, Jun, Sep, Dec001
Sulfate, total [as SO4]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Nickel, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Nickel, total recoverabledaily maximumreport only (lb/d)Mar, Jun, Sep, Dec001
Nickel, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Zinc, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Zinc, total recoverabledaily maximumreport only (lb/d)Mar, Jun, Sep, Dec001
Zinc, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Cadmium, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Cadmium, total recoverabledaily maximumreport only (lb/d)Mar, Jun, Sep, Dec001
Cadmium, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Lead, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Lead, total recoverabledaily maximumreport only (lb/d)Mar, Jun, Sep, Dec001
Lead, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Chromium, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Chromium, total recoverabledaily maximumreport only (lb/d)Mar, Jun, Sep, Dec001
Chromium, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Copper, total recoverablemonthly average≤ .025 mg/Lall year001
Copper, total recoverabledaily maximum≤ .05 mg/Lall year001
Copper, total recoverablemonthly average≤ 3.1 lb/dall year001
Copper, total recoverabledaily maximum≤ 6.3 lb/dall year001
Copper, total recoverablemonthly averagereport only (mg/L)all year001
Copper, total recoverabledaily maximumreport only (mg/L)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
E. coli, colony forming units [CFU]daily maximumreport only (CFU/100mL)Apr–Oct001
Number of Eventsmonthly totalreport only (# exceed)Apr–Oct001
Number of Eventsmonthly totalreport only (#)Apr–Oct001
Mercury, total recoverableannual average≤ 15.8 ng/LFeb, Apr, Jun, Aug, Oct, Dec001
Mercury, total recoverabledaily maximumreport only (ng/L)Feb, 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≤ 7.1 mg/LJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 5 mg/LMay–Nov001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 10.7 mg/LJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 7.5 mg/LMay–Nov001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1599.7 lb/dJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1126.6 lb/dMay–Nov001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 2410.9 lb/dJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 1689.9 lb/dMay–Nov001
Phosphorus, total percent removalmonthly average minimumreport only (%)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 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

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IN0022829 · MCP: https://passage-data.com/mcp