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Village of West Farmington WWTP

Sewerage Systems, West Farmington, Ohio. NPDES permit OH0150231, in force until May 31, 2031. Last 12 months: over a limit 16 times (last August 2026), 2 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (29 values), outfall 300 form A monthly (2 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
6 values over a limit, 0 required values missing, 0 of 25 reports late

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

All 16 values over a limit
Period endingParameterReportedLimitOver by
January 2026Phosphorus, total [as P], monthly average1.17≤ 1 mg/L17%
February 2026BOD, carbonaceous [5 day, 20 C], weekly maximum19.6≤ 15 mg/L31%
February 2026Nitrogen, ammonia total [as N], weekly maximum17.6≤ 4.5 mg/L291%
February 2026Nitrogen, ammonia total [as N], weekly maximum3.88≤ 2.22 kg/d75%
February 2026Phosphorus, total [as P], weekly maximum2.31≤ 1.5 mg/L54%
February 2026Solids, total suspended, weekly maximum19.8≤ 18 mg/L10%
March 2026BOD, carbonaceous [5 day, 20 C], weekly maximum21.2≤ 15 mg/L41%
March 2026Solids, total suspended, weekly maximum21≤ 18 mg/L17%
April 2026Solids, total suspended, weekly maximum11.1≤ 8.86 kg/d25%
April 2026Solids, total suspended, weekly maximum26.3≤ 18 mg/L46%
June 2026Nitrogen, ammonia total [as N], weekly maximum1.96≤ 1.5 mg/L31%
June 2026Phosphorus, total [as P], monthly average1.13≤ 1 mg/L13%
June 2026Phosphorus, total [as P], weekly maximum2.05≤ 1.5 mg/L37%
July 2026Phosphorus, total [as P], weekly maximum2.26≤ 1.5 mg/L51%
August 2026E. coli, MTEC-MF, weekly geometric mean590≤ 284 MPN/100mL108%
August 2026Solids, total suspended, weekly maximum18.5≤ 18 mg/L3%

Limits in force (56)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademonthly averagereport only (deg C)all year001
Temperature, water deg. centigradedaily maximumreport only (deg C)all year001
Oxygen, dissolved [DO]daily minimum≥ 6 mg/Lall year001
pHdaily minimum≥ 6.5 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 12 mg/Lall year001
Solids, total suspendedweekly maximum≤ 18 mg/Lall year001
Solids, total suspendedmonthly average≤ 5.91 kg/dall year001
Solids, total suspendedweekly maximum≤ 8.86 kg/dall year001
Oil and grease, hexane extr methoddaily maximum≤ 10 mg/LMar, Jun, Aug, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 3 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ 1.5 mg/LMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ 4.5 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ .49 kg/dMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 1.48 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ .74 kg/dMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ 2.22 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year001
Phosphorus, total [as P]weekly maximum≤ 1.5 mg/Lall year001
Phosphorus, total [as P]monthly average≤ .49 kg/dall year001
Phosphorus, total [as P]weekly maximum≤ .74 kg/dall year001
E. coli, MTEC-MFmonthly geometric mean≤ 126 MPN/100mLMay–Oct001
E. coli, MTEC-MFweekly geometric mean≤ 284 MPN/100mLMay–Oct001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Solids, total dissolved- 180 deg. Cmonthly averagereport only (mg/L)Feb, Apr, Jun, Aug, Oct, Dec001
Solids, total dissolved- 180 deg. Cdaily maximumreport only (mg/L)Feb, Apr, Jun, Aug, Oct, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 15 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 4.93 kg/dall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 7.39 kg/dall year001
Overflowsmonthly averagereport only (occur/mo)all year300
Overflowsdaily maximumreport only (occur/mo)all year300
Solids, total suspendedmonthly averagereport only (mg/L)Mar, Jun, Aug, Dec601
Solids, total suspendeddaily maximumreport only (mg/L)Mar, Jun, Aug, Dec601
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec601
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)Mar, Jun, Aug, Dec601
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec801
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Mar, Jun, Aug, Dec801
Phosphorus, total [as P]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec801
Phosphorus, total [as P]daily maximumreport only (mg/L)Mar, Jun, Aug, Dec801
Temperature, water deg. centigrademonthly averagereport only (deg C)Mar, Jun, Aug, Dec901
Temperature, water deg. centigradedaily maximumreport only (deg C)Mar, Jun, Aug, Dec901
pHdaily minimumreport only (SU)Mar, Jun, Aug, Dec901
pHdaily maximumreport only (SU)Mar, Jun, Aug, Dec901
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec901
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Mar, Jun, Aug, Dec901
Phosphorus, total [as P]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec901
Phosphorus, total [as P]daily maximumreport only (mg/L)Mar, Jun, Aug, Dec901
E. coli, MTEC-MFmonthly geometric meanreport only (MPN/100mL)Jun–Aug901
E. coli, MTEC-MFdaily maximumreport only (MPN/100mL)Jun–Aug901

How strict are these limits?

Cited limits by parameter: Ohio's rules and the federal ones.

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