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Tipton WWTP

Sewage treatment plant, major discharger, Tipton, Indiana. NPDES permit IN0021474, in force until Apr 30, 2029. Last 12 months: over a limit 3 times (last August 2026), 6 required values missing, 21 of 48 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 24 days after each period: outfall 001 form A monthly (24 values), outfall 010 form CP monthly (13 values), outfall 011 form C monthly (4 values), outfall 012 form C monthly (4 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
9 values over a limit, 7 required values missing, 26 of 52 reports late

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

Period endingParameterReportedLimitOver by
August 2026Chlorine, total residual, daily maximum.14 mg/L< .06 mg/L133%
August 2026E. coli, colony forming units [CFU], daily maximum2419.2 CFU/100mL≤ 235 CFU/100mL929%
August 2026E. coli, colony forming units [CFU], monthly geometric mean251 CFU/100mL≤ 125 CFU/100mL101%

Limits in force (79)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily average minimum≥ 6 mg/LMay–Nov001
Oxygen, dissolved [DO]daily average minimum≥ 5 mg/LJan, Feb, Mar, Apr, Dec001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 12 mg/Lall year001
Solids, total suspendedmaximum weekly average≤ 18 mg/Lall year001
Solids, total suspendedmonthly average≤ 401 lb/dall year001
Solids, total suspendedmaximum weekly average≤ 601 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≤ 1.3 mg/LMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]maximum weekly average≤ 2 mg/LMay–Nov001
Nitrogen, ammonia total [as N]maximum weekly average≤ 3 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 43 lb/dMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 67 lb/dJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]maximum weekly average≤ 67 lb/dMay–Nov001
Nitrogen, ammonia total [as N]maximum weekly average≤ 100 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
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1 tox acuteApr001
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1 tox acuteMay001
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1 tox acuteMay001
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 1 tox chronicApr001
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 1 tox chronicMay001
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 1 tox chronicMay001
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox acuteApr001
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox acuteMay001
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox acuteMay001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox chronicApr001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox chronicMay001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox chronicMay001
Mercury, total recoverablemonthly average≤ 12 ng/LFeb, Apr, Jun, Aug, Oct, Dec001
Mercury, total recoverabledaily maximum≤ 20 ng/LFeb, 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≤ 334 lb/dall year001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 501 lb/dall year001
Phosphorus, total percent removalmonthly average minimum≥ 65 %all year001
Flow, totalmonthly totalreport only (Mgal/mo)all year001
pHdaily minimumreport only (SU)all year010
pHdaily maximumreport only (SU)all year010
Solids, total suspendedmonthly averagereport only (mg/L)all year010
Solids, total suspendeddaily maximumreport only (mg/L)all year010
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year010
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year010
Chlorine, total residualmonthly average< .06 mg/LApr–Oct010
Chlorine, total residualdaily maximum< .06 mg/LApr–Oct010
E. coli, colony forming units [CFU]monthly geometric mean≤ 125 CFU/100mLApr–Oct010
E. coli, colony forming units [CFU]daily maximum≤ 235 CFU/100mLApr–Oct010
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year010
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year010
Flow, totalmonthly totalreport only (Mgal/mo)all year010
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
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/IN0021474 · MCP: https://passage-data.com/mcp