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Leavenworth Wastewater Treatment Plant

Sewage treatment plant, Leavenworth, Indiana. NPDES permit IN0021121, in force until Jul 31, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (30 values)
Renewal application due
Feb 2, 2028 · 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, 8 required values missing, 2 of 16 reports late

Limits in force (61)

ParameterStatisticLimitMonthsOutfall
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≤ 59 lb/dall year001
Solids, total suspendedmaximum weekly average≤ 89 lb/dall year001
Nitrogen, ammonia total [as N]monthly average≤ 3.1 mg/LMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 7.2 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]maximum weekly average≤ 4.7 mg/LMay–Nov001
Nitrogen, ammonia total [as N]maximum weekly average≤ 10.8 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 6.1 lb/dMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 14 lb/dJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]maximum weekly average≤ 9.3 lb/dMay–Nov001
Nitrogen, ammonia total [as N]maximum weekly average≤ 21 lb/dJan, Feb, Mar, Apr, Dec001
Zinc, total recoverablemonthly average≤ .14 mg/Lall year001
Zinc, total recoverabledaily maximum≤ .29 mg/Lall year001
Zinc, total recoverablemonthly averagereport only (mg/L)all year001
Zinc, total recoverabledaily maximumreport only (mg/L)all year001
Copper, total recoverablemonthly average≤ .021 mg/Lall year001
Copper, total recoverabledaily maximum≤ .043 mg/Lall 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
Chlorine, total residualmonthly average< .06 mg/Lall year001
Chlorine, total residualdaily maximum< .06 mg/Lall year001
Chlorine, total residualdaily minimum≥ .5 mg/Lall year001
Chlorine, total residualdaily maximumreport only (mg/L)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 dubiadaily maximum≤ 1 tox acuteJul001
Toxicity [acute], Ceriodaphnia dubiadaily maximum≤ 1 tox acuteAug001
Toxicity [acute], Ceriodaphnia dubiadaily maximum≤ 1 tox acuteAug001
Toxicity [acute], Pimephales promelas [Fathead Minnow]daily maximum≤ 1 tox acuteJul001
Toxicity [acute], Pimephales promelas [Fathead Minnow]daily maximum≤ 1 tox acuteAug001
Toxicity [acute], Pimephales promelas [Fathead Minnow]daily maximum≤ 1 tox acuteAug001
Coliform, fecal generalmonthly geometric mean≤ 2000 #/100mLJan, Feb, Mar, Nov, Dec001
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≤ 49 lb/dall year001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 79 lb/dall year001
Flow, totalmonthly totalreport only (Mgal/mo)all year001
TU Static 48Hr Acute Daphnia magnadaily maximum≤ 1 tox acuteJul001
TU Static 48Hr Acute Daphnia magnadaily maximum≤ 1 tox acuteAug001
TU Static 48Hr Acute Daphnia magnadaily maximum≤ 1 tox acuteAug001
TU Static 48Hr Acute Daphnia pulexdaily maximum≤ 1 tox acuteJul001
TU Static 48Hr Acute Daphnia pulexdaily maximum≤ 1 tox acuteAug001
TU Static 48Hr Acute Daphnia pulexdaily maximum≤ 1 tox acuteAug001
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/IN0021121 · MCP: https://passage-data.com/mcp