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Douglas Industrial Park

Sewage treatment plant, Robinson Creek, Kentucky. NPDES permit KY0042811, in force until Sep 30, 2027. Last 12 months: over a limit 19 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form 1 monthly (35 values), form 4 yearly, form 4T yearly
Renewal application due
Apr 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
20 values over a limit, 0 required values missing, 0 of 14 reports late

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

All 19 values over a limit
Period endingParameterReportedLimitOver by
October 2025Phosphorus, total [as P], daily maximum4.2 mg/L≤ 2 mg/L110%
October 2025Phosphorus, total [as P], monthly average3.15 mg/L≤ 1 mg/L215%
November 2025Phosphorus, total [as P], daily maximum2.9 mg/L≤ 2 mg/L45%
November 2025Phosphorus, total [as P], monthly average1.98 mg/L≤ 1 mg/L98%
December 2025E. coli, 7-day geometric mean414 #/100mL≤ 240 #/100mL73%
December 2025Phosphorus, total [as P], monthly average1.08 mg/L≤ 1 mg/L8%
January 2026E. coli, 30-day geometric mean208 #/100mL≤ 130 #/100mL60%
January 2026E. coli, 7-day geometric mean60000 #/100mL≤ 240 #/100mL24900%
May 2026Nitrogen, ammonia total [as N], daily maximum7 mg/L≤ 6 mg/L17%
May 2026Phosphorus, total [as P], daily maximum6 mg/L≤ 2 mg/L200%
May 2026Phosphorus, total [as P], monthly average4.06 mg/L≤ 1 mg/L306%
June 2026Nitrogen, ammonia total [as N], daily maximum8.1 mg/L≤ 6 mg/L35%
June 2026Nitrogen, ammonia total [as N], monthly average4.6 mg/L≤ 4 mg/L15%
June 2026Phosphorus, total [as P], daily maximum8.16 mg/L≤ 2 mg/L308%
June 2026Phosphorus, total [as P], monthly average5.79 mg/L≤ 1 mg/L479%
July 2026Phosphorus, total [as P], daily maximum9.6 mg/L≤ 2 mg/L380%
July 2026Phosphorus, total [as P], monthly average5.42 mg/L≤ 1 mg/L442%
August 2026Phosphorus, total [as P], daily maximum3.25 mg/L≤ 2 mg/L63%
August 2026Phosphorus, total [as P], monthly average2.7 mg/L≤ 1 mg/L170%

Limits in force (52)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitaveragereport only (deg F)all year
Temperature, water deg. fahrenheitmaximumreport only (deg F)all year
Oxygen, dissolved [DO]instantaneous minimum≥ 7 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 15 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 22.5 mg/Lall year
Solids, total suspendedmonthly average≤ 37.55 lb/dall year
Solids, total suspendedmaximum weekly average≤ 56.32 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedmaximum weekly averagereport only (mg/L)all year
Oil & Greaseaveragereport only (mg/L)all year
Oil & Greasemaximumreport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 10 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 6 mg/LMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 15 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 10 lb/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 25 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]maximum weekly average≤ 15 lb/dMay–Oct
Nitrogen, ammonia total [as N]maximum weekly average≤ 37.5 lb/dJan, Feb, Mar, Apr, Nov, Dec
Phosphorus, total [as P]averagereport only (mg/L)all year
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year
Phosphorus, total [as P]maximumreport only (mg/L)all year
Phosphorus, total [as P]daily maximum≤ 2 mg/Lall year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Toxicitymaximum≤ 1 tox chronicall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
E. coli30-day geometric mean≤ 130 #/100mLall year
E. coli7-day geometric mean≤ 240 #/100mLall year
Nitrogen, Kjeldahl Totalaveragereport only (mg/L)all year
Nitrogen, Kjeldahl Totalmaximumreport only (mg/L)all year
Nitrite Plus Nitrate Totalaveragereport only (mg/L)all year
Nitrite Plus Nitrate Totalmaximumreport only (mg/L)all year
Solids, total dissolved [TDS]averagereport only (mg/L)all year
Solids, total dissolved [TDS]maximumreport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 15 mg/Lall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 22.5 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 37.55 lb/dall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 56.32 lb/dall year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]maximum weekly averagereport only (mg/L)all year
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year

How strict are these limits?

Cited limits by parameter: Kentucky'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/KY0042811 · MCP: https://passage-data.com/mcp