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Greencastle WWTP

Sewage treatment plant, major discharger, Greencastle, Indiana. NPDES permit IN0021032, in force until Mar 31, 2029. 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 (23 values), form TR twice a year
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 14 reports late

Limits in force (58)

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≤ 30 mg/LJan, Feb, Mar, Apr, Dec001
Solids, total suspendedmonthly average≤ 26 mg/LMay–Nov001
Solids, total suspendedmaximum weekly average≤ 45 mg/LJan, Feb, Mar, Apr, Dec001
Solids, total suspendedmaximum weekly average≤ 39 mg/LMay–Nov001
Solids, total suspendedmonthly average≤ 701 lb/dJan, Feb, Mar, Apr, Dec001
Solids, total suspendedmonthly average≤ 608 lb/dMay–Nov001
Solids, total suspendedmaximum weekly average≤ 1052 lb/dJan, Feb, Mar, Apr, Dec001
Solids, total suspendedmaximum weekly average≤ 911 lb/dMay–Nov001
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≤ 1.7 mg/LMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 2.5 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]maximum weekly average≤ 2.6 mg/LMay–Nov001
Nitrogen, ammonia total [as N]maximum weekly average≤ 3.8 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 39.7 lb/dMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 58.4 lb/dJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]maximum weekly average≤ 60.8 lb/dMay–Nov001
Nitrogen, ammonia total [as N]maximum weekly average≤ 88.8 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 acuteSep001
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1 tox acuteOct001
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 1.2 tox chronicSep001
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 1.2 tox chronicOct001
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox acuteSep001
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox acuteOct001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 1.2 tox chronicSep001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 1.2 tox chronicOct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 22 mg/LMay–Nov001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 40 mg/LJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 33 mg/LMay–Nov001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 584 lb/dJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 514 lb/dMay–Nov001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 935 lb/dJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 771 lb/dMay–Nov001
Flow, totalmonthly totalreport only (Mgal/mo)all year001
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/IN0021032 · MCP: https://passage-data.com/mcp