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Pittsboro WWTP

Sewage treatment plant, major discharger, Pittsboro, Indiana. NPDES permit IN0020401, in force until Jan 31, 2028. Last 12 months: over a limit 10 times (last August 2026), 1 required value missing, 4 of 18 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (27 values), form AQ quarterly (4 values)
Renewal application due
Aug 4, 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, 5 required values missing, 3 of 18 reports late

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

Period endingParameterReportedLimitOver by
February 2026Phosphorus, total [as P], monthly average1.25 mg/L≤ 1 mg/L25%
May 2026E. coli, colony forming units [CFU], daily maximum1011 CFU/100mL≤ 235 CFU/100mL330%
May 2026Nitrogen, ammonia total [as N], maximum weekly average3.182 mg/L≤ 1.9 mg/L67%
May 2026Nitrogen, ammonia total [as N], maximum weekly average40.085 lb/d≤ 19 lb/d111%
May 2026Solids, total suspended, maximum weekly average180.4 lb/d≤ 180 lb/d0%
June 2026Nitrogen, ammonia total [as N], maximum weekly average22.71 lb/d≤ 19 lb/d20%
June 2026Nitrogen, ammonia total [as N], maximum weekly average3.394 mg/L≤ 1.9 mg/L79%
June 2026Phosphorus, total [as P], monthly average1.305 mg/L≤ 1 mg/L31%
July 2026Phosphorus, total [as P], monthly average1.058 mg/L≤ 1 mg/L6%
August 2026Phosphorus, total [as P], monthly average1.0465 mg/L≤ 1 mg/L5%

Limits in force (59)

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≤ 12 mg/LMay–Nov001
Solids, total suspendedmaximum weekly average≤ 45 mg/LJan, Feb, Mar, Apr, Dec001
Solids, total suspendedmaximum weekly average≤ 18 mg/LMay–Nov001
Solids, total suspendedmonthly average≤ 300 lb/dJan, Feb, Mar, Apr, Dec001
Solids, total suspendedmonthly average≤ 120 lb/dMay–Nov001
Solids, total suspendedmaximum weekly average≤ 450 lb/dJan, Feb, Mar, Apr, Dec001
Solids, total suspendedmaximum weekly average≤ 180 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≤ 1.3 mg/LMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 1.9 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]maximum weekly average≤ 1.9 mg/LMay–Nov001
Nitrogen, ammonia total [as N]maximum weekly average≤ 2.7 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 13 lb/dMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 19 lb/dJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]maximum weekly average≤ 19 lb/dMay–Nov001
Nitrogen, ammonia total [as N]maximum weekly average≤ 27 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
Zinc, total recoverablemonthly average≤ .21 mg/Lall year001
Zinc, total recoverabledaily maximumreport only (mg/L)all year001
Zinc, total recoverabledaily maximum≤ .43 mg/Lall year001
Zinc, total recoverablemonthly averagereport only (mg/L)all year001
Zinc, total recoverabledaily maximumreport only (mg/L)all year001
Lead, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Lead, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Lead, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
Lead, total recoverabledaily maximumreport only (mg/L)Mar, Jun, Sep, Dec001
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
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 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≤ 15 mg/LMay–Nov001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 250 lb/dJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 100 lb/dMay–Nov001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 400 lb/dJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 150 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/IN0020401 · MCP: https://passage-data.com/mcp