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Benham STP

Sewage treatment plant, Benham, Kentucky. NPDES permit KY0025755 expired Jul 31, 2026; its limits still apply. Last 12 months: over a limit 65 times (last August 2026), 70 required values missing, 2 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form 1 monthly (35 values), form 4 yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
89 values over a limit, 105 required values missing, 3 of 13 reports late

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

All 65 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum82 %≥ 85 %20%
October 2025E. coli, 30-day geometric mean1763 #/100mL≤ 130 #/100mL1256%
October 2025E. coli, 7-day geometric mean2420 #/100mL≤ 240 #/100mL908%
October 2025Nitrogen, ammonia total [as N], daily maximum24.1 mg/L≤ 6 mg/L302%
October 2025Nitrogen, ammonia total [as N], monthly average13.96 lb/d≤ 8.3 lb/d68%
October 2025Nitrogen, ammonia total [as N], monthly average14.1 mg/L≤ 4 mg/L253%
October 2025Nitrogen, ammonia total [as N], maximum weekly average22.71 lb/d≤ 12.5 lb/d82%
October 2025Solids, suspended percent removal, monthly average minimum82 %≥ 85 %20%
November 2025BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum70 %≥ 85 %100%
November 2025E. coli, 30-day geometric mean515 #/100mL≤ 130 #/100mL296%
November 2025E. coli, 7-day geometric mean2420 #/100mL≤ 240 #/100mL908%
November 2025Nitrogen, ammonia total [as N], daily maximum18 mg/L≤ 15 mg/L20%
November 2025Nitrogen, ammonia total [as N], monthly average11.56 mg/L≤ 10 mg/L16%
December 2025E. coli, 30-day geometric mean217 #/100mL≤ 130 #/100mL67%
December 2025E. coli, 7-day geometric mean2420 #/100mL≤ 240 #/100mL908%
January 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum83 %≥ 85 %13%
January 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum83 %≥ 85 %13%
January 2026E. coli, 30-day geometric mean262 #/100mL≤ 130 #/100mL102%
January 2026E. coli, 30-day geometric mean262 #/100mL≤ 130 #/100mL102%
January 2026E. coli, 7-day geometric mean1414 #/100mL≤ 240 #/100mL489%
January 2026E. coli, 7-day geometric mean1414 #/100mL≤ 240 #/100mL489%
January 2026Nitrogen, ammonia total [as N], monthly average10.272 mg/L≤ 10 mg/L3%
January 2026Nitrogen, ammonia total [as N], monthly average10.272 mg/L≤ 10 mg/L3%
February 2026E. coli, 30-day geometric mean836 #/100mL≤ 130 #/100mL543%
February 2026E. coli, 7-day geometric mean2420 #/100mL≤ 240 #/100mL908%
March 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum83 %≥ 85 %13%
March 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum83 %≥ 85 %13%
March 2026E. coli, 30-day geometric mean458 #/100mL≤ 130 #/100mL252%
March 2026E. coli, 30-day geometric mean458 #/100mL≤ 130 #/100mL252%
March 2026E. coli, 7-day geometric mean1733 #/100mL≤ 240 #/100mL622%
March 2026E. coli, 7-day geometric mean1733 #/100mL≤ 240 #/100mL622%
April 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum74 %≥ 85 %73%
April 2026E. coli, 30-day geometric mean2089 #/100mL≤ 130 #/100mL1507%
April 2026E. coli, 7-day geometric mean2420 #/100mL≤ 240 #/100mL908%
April 2026Solids, suspended percent removal, monthly average minimum80 %≥ 85 %33%
May 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum83 %≥ 85 %13%
May 2026E. coli, 30-day geometric mean192 #/100mL≤ 130 #/100mL48%
May 2026E. coli, 7-day geometric mean1733 #/100mL≤ 240 #/100mL622%
May 2026Nitrogen, ammonia total [as N], daily maximum13 mg/L≤ 6 mg/L117%
May 2026Nitrogen, ammonia total [as N], monthly average10.22 mg/L≤ 4 mg/L156%
May 2026Nitrogen, ammonia total [as N], monthly average9.267 lb/d≤ 8.3 lb/d12%
May 2026Oxygen, dissolved [DO], instantaneous minimum6.2 mg/L≥ 7 mg/L11%
May 2026Solids, suspended percent removal, monthly average minimum84 %≥ 85 %7%
June 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum78 %≥ 85 %47%
June 2026E. coli, 30-day geometric mean340 #/100mL≤ 130 #/100mL162%
June 2026E. coli, 7-day geometric mean2420 #/100mL≤ 240 #/100mL908%
June 2026Nitrogen, ammonia total [as N], daily maximum30.5 mg/L≤ 6 mg/L408%
June 2026Nitrogen, ammonia total [as N], monthly average11.69 lb/d≤ 8.3 lb/d41%
June 2026Nitrogen, ammonia total [as N], monthly average22.25 mg/L≤ 4 mg/L456%
June 2026Nitrogen, ammonia total [as N], maximum weekly average16.025 lb/d≤ 12.5 lb/d28%
June 2026Oxygen, dissolved [DO], instantaneous minimum5.4 mg/L≥ 7 mg/L23%
June 2026Solids, suspended percent removal, monthly average minimum84 %≥ 85 %7%
June 2026pH, minimum5.89 SU≥ 6 SU—
July 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum80 %≥ 85 %33%
July 2026E. coli, 7-day geometric mean2420 #/100mL≤ 240 #/100mL908%
July 2026Nitrogen, ammonia total [as N], daily maximum20.3 mg/L≤ 6 mg/L238%
July 2026Nitrogen, ammonia total [as N], monthly average14.56 mg/L≤ 4 mg/L264%
July 2026Oxygen, dissolved [DO], instantaneous minimum3.9 mg/L≥ 7 mg/L44%
August 2026BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum78 %≥ 85 %47%
August 2026E. coli, 7-day geometric mean2420 #/100mL≤ 240 #/100mL908%
August 2026Nitrogen, ammonia total [as N], daily maximum17.5 mg/L≤ 6 mg/L192%
August 2026Nitrogen, ammonia total [as N], monthly average10.83 mg/L≤ 4 mg/L171%
August 2026Nitrogen, ammonia total [as N], monthly average13.909 lb/d≤ 8.3 lb/d68%
August 2026Nitrogen, ammonia total [as N], maximum weekly average22.476 lb/d≤ 12.5 lb/d80%
August 2026Oxygen, dissolved [DO], instantaneous minimum4.5 mg/L≥ 7 mg/L36%

Limits in force (53)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitaveragereport only (deg F)May–Oct
Temperature, water deg. fahrenheitaveragereport only (deg F)Jan, Feb, Mar, Apr, Nov, Dec
Temperature, water deg. fahrenheitmaximumreport only (deg F)May–Oct
Temperature, water deg. fahrenheitmaximumreport only (deg F)Jan, Feb, Mar, Apr, Nov, Dec
Oxygen, dissolved [DO]instantaneous minimum≥ 7 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 63 lb/dall year
Solids, total suspendedmaximum weekly average≤ 94.5 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≤ 8.3 lb/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 20.9 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]maximum weekly average≤ 12.5 lb/dMay–Oct
Nitrogen, ammonia total [as N]maximum weekly average≤ 31.4 lb/dJan, Feb, Mar, Apr, Nov, Dec
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)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
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≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 37.5 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 52.2 lb/dall year
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 78.3 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.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/KY0025755 · MCP: https://passage-data.com/mcp