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Peru Utilities WWTP

Sewage treatment plant, major discharger, Peru, Indiana. NPDES permit IN0032328, in force until Nov 30, 2030. Last 12 months: over a limit 11 times (last July 2026), 2 required values missing, 2 of 123 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form B monthly (23 values), outfall 002 form C monthly (4 values), outfall 003 form C monthly (4 values), outfall 004 form C monthly (4 values), outfall 006 form C monthly (4 values), outfall 008 form C monthly (4 values), and 5 more forms
Last report on file
August 2026
Oct 2024 – Sep 2025
4 values over a limit, 0 required values missing, 0 of 136 reports late

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

Period endingParameterReportedLimitOver by
February 2026Phosphorus, total [as P], monthly average1.3 mg/L≤ 1 mg/L30%
March 2026Phosphorus, total [as P], monthly average1.4 mg/L≤ 1 mg/L40%
March 2026Solids, total suspended, monthly average31.5 mg/L≤ 30 mg/L5%
March 2026Solids, total suspended, maximum weekly average80.2 mg/L≤ 45 mg/L78%
April 2026E. coli, colony forming units [CFU], daily maximum63200 CFU/100mL≤ 235 CFU/100mL26794%
April 2026E. coli, colony forming units [CFU], monthly geometric mean136 CFU/100mL≤ 125 CFU/100mL9%
April 2026Phosphorus, total [as P], monthly average1.1 mg/L≤ 1 mg/L10%
April 2026Solids, total suspended, monthly average46.2 mg/L≤ 30 mg/L54%
April 2026Solids, total suspended, maximum weekly average110 mg/L≤ 45 mg/L144%
July 2026Phosphorus, total [as P], monthly average1.2 mg/L≤ 1 mg/L20%
July 2026Solids, total suspended, maximum weekly average101.8 mg/L≤ 45 mg/L126%

Limits in force (86)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily average minimum≥ 5 mg/LMay–Nov001
Oxygen, dissolved [DO]daily average minimum≥ 4 mg/LJan, Feb, Mar, Apr, Dec001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 6509 lb/dall year001
Solids, total suspendedmaximum weekly average≤ 9764 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≤ 4.9 mg/Lall year001
Nitrogen, ammonia total [as N]maximum weekly average≤ 7.4 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 1063 lb/dall year001
Nitrogen, ammonia total [as N]maximum weekly average≤ 1606 lb/dall year001
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
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1 tox acuteJun001
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1 tox acuteMay001
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 3.8 tox chronicJun001
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 3.8 tox chronicMay001
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox acuteJun001
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox acuteMay001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 3.8 tox chronicJun001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 3.8 tox chronicMay001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 40 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 5424 lb/dall year001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 8678 lb/dall 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 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
Durationmonthly totalreport only (hr/mo)all year008
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (Mgal)all year008
Precipitation, monthly accumulationmonthly totalreport only (in/mo)all year008
Discharge event observation [Visual Monitoring]monthly totalreport only (#/mo)all year008
Durationmonthly totalreport only (hr/mo)all year011
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (Mgal)all year011
Precipitation, monthly accumulationmonthly totalreport only (in/mo)all year011
Discharge event observation [Visual Monitoring]monthly totalreport only (#/mo)all year011
Durationmonthly totalreport only (hr/mo)all year012
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (Mgal)all year012
Precipitation, monthly accumulationmonthly totalreport only (in/mo)all year012
Discharge event observation [Visual Monitoring]monthly totalreport only (#/mo)all year012
Durationmonthly totalreport only (hr/mo)all year014
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (Mgal)all year014
Precipitation, monthly accumulationmonthly totalreport only (in/mo)all year014
Discharge event observation [Visual Monitoring]monthly totalreport only (#/mo)all year014
Durationmonthly totalreport only (hr/mo)all year015
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (Mgal)all year015
Precipitation, monthly accumulationmonthly totalreport only (in/mo)all year015
Discharge event observation [Visual Monitoring]monthly totalreport only (#/mo)all year015
Durationmonthly totalreport only (hr/mo)all year016
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (Mgal)all year016
Precipitation, monthly accumulationmonthly totalreport only (in/mo)all year016
Discharge event observation [Visual Monitoring]monthly totalreport only (#/mo)all year016
Copper, dry weightvaluereport only (mg/kg)Jun, DecPRT
Copper, dry weightvaluereport only (mg/kg)Jun, DecPRT
Cadmium, dry weightvaluereport only (mg/kg)Jun, DecPRT
Cadmium, dry weightvaluereport only (mg/kg)Jun, DecPRT
Molybdenum, sludge, total, dry weight [as Mo]valuereport only (mg/kg)Jun, DecPRT
Molybdenum, sludge, total, dry weight [as Mo]valuereport only (mg/kg)Jun, DecPRT
Zinc, sludge, total, dry weight [as Zn]valuereport only (mg/kg)Jun, DecPRT
Zinc, sludge, total, dry weight [as Zn]valuereport only (mg/kg)Jun, DecPRT
Lead, sludge, total, dry weight [as Pb]valuereport only (mg/kg)Jun, DecPRT
Lead, sludge, total, dry weight [as Pb]valuereport only (mg/kg)Jun, DecPRT
Nickel, sludge, total, dry weight [as Ni]valuereport only (mg/kg)Jun, DecPRT
Nickel, sludge, total, dry weight [as Ni]valuereport only (mg/kg)Jun, DecPRT
Mercury, sludge, total, dry weight [as Hg]valuereport only (mg/kg)Jun, DecPRT
Mercury, sludge, total, dry weight [as Hg]valuereport only (mg/kg)Jun, DecPRT

How strict are these limits?

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

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IN0032328 · MCP: https://passage-data.com/mcp