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Cow Crk STP

Sewerage Systems, Ravenna, Kentucky. NPDES permit KY0112399, in force until Dec 31, 2030. Last 12 months: over a limit 10 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form 2 quarterly, form 4 yearly
Last report on file
June 2026
Oct 2024 – Sep 2025
7 values over a limit, 0 required values missing, 1 of 4 reports late

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

Period endingParameterReportedLimitOver by
December 2025E. coli, 30-day geometric mean60000 #/100mL≤ 130 #/100mL46054%
December 2025E. coli, 7-day geometric mean60000 #/100mL≤ 240 #/100mL24900%
June 2026BOD, carbonaceous [5 day, 20 C], monthly average170 mg/L≤ 25 mg/L580%
June 2026BOD, carbonaceous [5 day, 20 C], maximum weekly average170 mg/L≤ 37.5 mg/L353%
June 2026E. coli, 30-day geometric mean2124 #/100mL≤ 130 #/100mL1534%
June 2026E. coli, 7-day geometric mean60000 #/100mL≤ 240 #/100mL24900%
June 2026Nitrogen, ammonia total [as N], daily maximum45.4 mg/L≤ 6 mg/L657%
June 2026Nitrogen, ammonia total [as N], monthly average45.4 mg/L≤ 4 mg/L1035%
June 2026Solids, total suspended, monthly average49 mg/L≤ 30 mg/L63%
June 2026Solids, total suspended, maximum weekly average49 mg/L≤ 45 mg/L9%

Limits in force (19)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 7 mg/Lall year
pHminimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year
Oil & Greasemonthly averagereport only (mg/L)all year
Oil & Greasedaily 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
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmonthly average≤ .011 mg/Lall year
Chlorine, total residualdaily maximum≤ .019 mg/Lall year
E. coli30-day geometric mean≤ 130 #/100mLall year
E. coli7-day geometric mean≤ 240 #/100mLall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 37.5 mg/Lall 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/KY0112399 · MCP: https://passage-data.com/mcp