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Portland WWTP

Sewage treatment plant, major discharger, Portland, Indiana. NPDES permit IN0020095, in force until May 31, 2028. Last 12 months: no values over a limit, 1 required value missing, 1 of 146 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: outfall 001 form C monthly (4 values), outfall 002 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), outfall 007 form C monthly (4 values), and 7 more forms
Renewal application due
Dec 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 1 required value missing, 1 of 159 reports late

Limits in force (104)

ParameterStatisticLimitMonthsOutfall
Durationmonthly totalreport only (hr/mo)all year001
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (Mgal)all year001
Precipitation, monthly accumulationmonthly totalreport only (in/mo)all year001
Discharge event observation [Visual Monitoring]monthly totalreport only (#/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 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
Durationmonthly totalreport only (hr/mo)all year007
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (Mgal)all year007
Precipitation, monthly accumulationmonthly totalreport only (in/mo)all year007
Discharge event observation [Visual Monitoring]monthly totalreport only (#/mo)all year007
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 year009
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (Mgal)all year009
Precipitation, monthly accumulationmonthly totalreport only (in/mo)all year009
Discharge event observation [Visual Monitoring]monthly totalreport only (#/mo)all year009
Durationmonthly totalreport only (hr/mo)all year010
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (Mgal)all year010
Precipitation, monthly accumulationmonthly totalreport only (in/mo)all year010
Discharge event observation [Visual Monitoring]monthly totalreport only (#/mo)all year010
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 year013
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (Mgal)all year013
Precipitation, monthly accumulationmonthly totalreport only (in/mo)all year013
Discharge event observation [Visual Monitoring]monthly totalreport only (#/mo)all year013
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
Oxygen, dissolved [DO]daily average minimum≥ 6 mg/LMay–Nov018
Oxygen, dissolved [DO]daily average minimum≥ 5 mg/LJan, Feb, Mar, Apr, Dec018
pHdaily minimum≥ 6 SUall year018
pHdaily maximum≤ 9 SUall year018
Solids, total suspendedmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, Dec018
Solids, total suspendedmonthly average≤ 18 mg/LMay–Nov018
Solids, total suspendedmaximum weekly average≤ 45 mg/LJan, Feb, Mar, Apr, Dec018
Solids, total suspendedmaximum weekly average≤ 27 mg/LMay–Nov018
Solids, total suspendedmonthly average≤ 588 lb/dJan, Feb, Mar, Apr, Dec018
Solids, total suspendedmonthly average≤ 353 lb/dMay–Nov018
Solids, total suspendedmaximum weekly average≤ 882 lb/dJan, Feb, Mar, Apr, Dec018
Solids, total suspendedmaximum weekly average≤ 529 lb/dMay–Nov018
Nitrogen, total [as N]monthly averagereport only (mg/L)all year018
Nitrogen, total [as N]monthly averagereport only (lb/d)all year018
Nitrogen, ammonia total [as N]monthly average≤ .9 mg/LMay–Nov018
Nitrogen, ammonia total [as N]monthly average≤ 1.6 mg/LJan, Feb, Mar, Apr, Dec018
Nitrogen, ammonia total [as N]maximum weekly average≤ 1.4 mg/LMay–Nov018
Nitrogen, ammonia total [as N]maximum weekly average≤ 2.4 mg/LJan, Feb, Mar, Apr, Dec018
Nitrogen, ammonia total [as N]monthly average≤ 17.6 lb/dMay–Nov018
Nitrogen, ammonia total [as N]monthly average≤ 31.4 lb/dJan, Feb, Mar, Apr, Dec018
Nitrogen, ammonia total [as N]maximum weekly average≤ 27.5 lb/dMay–Nov018
Nitrogen, ammonia total [as N]maximum weekly average≤ 47.1 lb/dJan, Feb, Mar, Apr, Dec018
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year018
Phosphorus, total [as P]monthly averagereport only (lb/d)all year018
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year018
Chlorine, total residualmonthly average< .06 mg/LApr–Oct018
Chlorine, total residualdaily maximum< .06 mg/LApr–Oct018
E. coli, colony forming units [CFU]monthly geometric mean≤ 125 CFU/100mLApr–Oct018
E. coli, colony forming units [CFU]daily maximum≤ 235 CFU/100mLApr–Oct018
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1 tox acuteMay018
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 1.2 tox chronicMay018
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox acuteMay018
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 1.2 tox chronicMay018
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, Dec018
BOD, carbonaceous [5 day, 20 C]monthly average≤ 15 mg/LMay–Nov018
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 40 mg/LJan, Feb, Mar, Apr, Dec018
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 23 mg/LMay–Nov018
BOD, carbonaceous [5 day, 20 C]monthly average≤ 490 lb/dJan, Feb, Mar, Apr, Dec018
BOD, carbonaceous [5 day, 20 C]monthly average≤ 294 lb/dMay–Nov018
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 784 lb/dJan, Feb, Mar, Apr, Dec018
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 451 lb/dMay–Nov018
Flow, totalmonthly totalreport only (Mgal/mo)all year018
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/IN0020095 · MCP: https://passage-data.com/mcp