Passage Data · Check a report · Use it from your AI

Patoka Lake Regional Water & Sewer District

Sewage treatment plant, Dubois, Indiana. NPDES permit IN0052698, in force until Nov 30, 2028. Last 12 months: over a limit 6 times (last May 2026), 1 required value missing, 1 of 16 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (18 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 1 required value missing, 2 of 16 reports late

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

Period endingParameterReportedLimitOver by
March 2026Solids, total suspended, monthly average341.4 lb/d≤ 175 lb/d95%
March 2026Solids, total suspended, monthly average52.4 mg/L≤ 30 mg/L75%
March 2026Solids, total suspended, maximum weekly average1296 lb/d≤ 263 lb/d393%
March 2026Solids, total suspended, maximum weekly average177.5 mg/L≤ 45 mg/L294%
May 2026Solids, total suspended, maximum weekly average308 lb/d≤ 263 lb/d17%
May 2026Solids, total suspended, maximum weekly average52 mg/L≤ 45 mg/L16%

Limits in force (44)

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≤ 175 lb/dall year001
Solids, total suspendedmaximum weekly average≤ 263 lb/dall year001
Nitrogen, ammonia total [as N]monthly average≤ 10 mg/LMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 13 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]maximum weekly average≤ 15 mg/LMay–Nov001
Nitrogen, ammonia total [as N]maximum weekly average≤ 19.5 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 58 lb/dMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 76 lb/dJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]maximum weekly average≤ 88 lb/dMay–Nov001
Nitrogen, ammonia total [as N]maximum weekly average≤ 114 lb/dJan, Feb, Mar, Apr, 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
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1 tox acuteNov001
Toxicity [acute], Ceriodaphnia dubiamaximum≤ 1 tox acuteDec001
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 6.8 tox chronicNov001
Toxicity [chronic], Ceriodaphnia dubiamaximum≤ 6.8 tox chronicDec001
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox acuteNov001
Toxicity [acute], Pimephales promelas [Fathead Minnow]maximum≤ 1 tox acuteDec001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 6.8 tox chronicNov001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]maximum≤ 6.8 tox chronicDec001
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≤ 146 lb/dall year001
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 234 lb/dall year001
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

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IN0052698 · MCP: https://passage-data.com/mcp