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Ripley Sewage Treatment Plant

Sewage treatment plant, Ripley, Ohio. NPDES permit OH0020966, in force until Nov 30, 2028. Last 12 months: over a limit 61 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (34 values), outfall 300 form A monthly (2 values), outfall 601 form A monthly (10 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
77 values over a limit, 0 required values missing, 0 of 37 reports late

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

All 61 values over a limit
Period endingParameterReportedLimitOver by
October 2025E. coli, MTEC-MF, monthly geometric mean23300≤ 126 MPN/100mL18392%
October 2025E. coli, MTEC-MF, weekly geometric mean39500≤ 240 MPN/100mL16358%
October 2025Oxygen, dissolved [DO], daily minimum3.7≥ 6 mg/L38%
October 2025Solids, total suspended, monthly average22≤ 18.2 kg/d21%
October 2025Solids, total suspended, monthly average41≤ 12 mg/L242%
October 2025Solids, total suspended, weekly maximum47≤ 27.3 kg/d72%
October 2025Solids, total suspended, weekly maximum61≤ 18 mg/L239%
October 2025pH, daily minimum5.3≥ 6.5 SU—
November 2025Coliform, fecal MF, MFC broth, 44.5 C, monthly geometric mean1300≤ 1000 #/100mL30%
November 2025Coliform, fecal MF, MFC broth, 44.5 C, weekly geometric mean11000≤ 2000 #/100mL450%
November 2025Solids, total suspended, monthly average32≤ 12 mg/L167%
November 2025Solids, total suspended, weekly maximum38≤ 18 mg/L111%
November 2025pH, daily minimum5≥ 6.5 SU—
December 2025BOD, carbonaceous [5 day, 20 C], monthly average10.5≤ 10 mg/L5%
December 2025BOD, carbonaceous [5 day, 20 C], weekly maximum17≤ 15 mg/L13%
December 2025Nitrogen, ammonia total [as N], weekly maximum4.61≤ 4.5 mg/L2%
December 2025Solids, total suspended, monthly average20≤ 18.2 kg/d10%
December 2025Solids, total suspended, monthly average41≤ 12 mg/L242%
December 2025Solids, total suspended, weekly maximum32≤ 27.3 kg/d17%
December 2025Solids, total suspended, weekly maximum66≤ 18 mg/L267%
December 2025pH, daily minimum5.3≥ 6.5 SU—
January 2026Nitrogen, ammonia total [as N], monthly average4.6≤ 3 mg/L53%
January 2026Nitrogen, ammonia total [as N], weekly maximum6.3≤ 4.5 mg/L40%
January 2026Solids, total suspended, monthly average29≤ 18.2 kg/d59%
January 2026Solids, total suspended, monthly average50≤ 12 mg/L317%
January 2026Solids, total suspended, weekly maximum47≤ 27.3 kg/d72%
January 2026Solids, total suspended, weekly maximum59≤ 18 mg/L228%
January 2026pH, daily minimum5.2≥ 6.5 SU—
February 2026Solids, total suspended, monthly average28≤ 18.2 kg/d54%
February 2026Solids, total suspended, monthly average48≤ 12 mg/L300%
February 2026Solids, total suspended, weekly maximum50≤ 27.3 kg/d83%
February 2026Solids, total suspended, weekly maximum66≤ 18 mg/L267%
March 2026Coliform, fecal MF, MFC broth, 44.5 C, weekly geometric mean6310≤ 2000 #/100mL216%
March 2026Solids, total suspended, monthly average18≤ 12 mg/L50%
March 2026Solids, total suspended, weekly maximum29≤ 18 mg/L61%
April 2026Coliform, fecal MF, MFC broth, 44.5 C, weekly geometric mean5580≤ 2000 #/100mL179%
May 2026E. coli, MTEC-MF, monthly geometric mean127≤ 126 MPN/100mL1%
May 2026E. coli, MTEC-MF, weekly geometric mean29510≤ 240 MPN/100mL12196%
May 2026Oxygen, dissolved [DO], daily minimum5.4≥ 6 mg/L10%
May 2026Solids, total suspended, monthly average16≤ 12 mg/L33%
May 2026Solids, total suspended, weekly maximum30≤ 18 mg/L67%
May 2026Solids, total suspended, weekly maximum41≤ 27.3 kg/d50%
June 2026E. coli, MTEC-MF, monthly geometric mean9750≤ 126 MPN/100mL7638%
June 2026E. coli, MTEC-MF, weekly geometric mean44500≤ 240 MPN/100mL18442%
June 2026Nitrogen, ammonia total [as N], monthly average2.47≤ 1.52 kg/d63%
June 2026Nitrogen, ammonia total [as N], monthly average3.72≤ 1 mg/L272%
June 2026Nitrogen, ammonia total [as N], weekly maximum5.18≤ 2.28 kg/d127%
June 2026Nitrogen, ammonia total [as N], weekly maximum6.9≤ 1.5 mg/L360%
June 2026Oxygen, dissolved [DO], daily minimum5≥ 6 mg/L17%
June 2026Solids, total suspended, monthly average21≤ 18.2 kg/d15%
June 2026Solids, total suspended, monthly average33≤ 12 mg/L175%
June 2026Solids, total suspended, weekly maximum38≤ 27.3 kg/d39%
June 2026Solids, total suspended, weekly maximum55≤ 18 mg/L206%
July 2026Nitrogen, ammonia total [as N], monthly average2.87≤ 1 mg/L187%
July 2026Nitrogen, ammonia total [as N], weekly maximum3.96≤ 2.28 kg/d74%
July 2026Nitrogen, ammonia total [as N], weekly maximum8.04≤ 1.5 mg/L436%
July 2026Oxygen, dissolved [DO], daily minimum5.6≥ 6 mg/L7%
August 2026E. coli, MTEC-MF, monthly geometric mean468≤ 126 MPN/100mL271%
August 2026E. coli, MTEC-MF, weekly geometric mean5430≤ 240 MPN/100mL2163%
August 2026Nitrogen, ammonia total [as N], weekly maximum2.04≤ 1.5 mg/L36%
August 2026Oxygen, dissolved [DO], daily minimum5.2≥ 6 mg/L13%

Limits in force (78)

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≤ 18.2 kg/dall year001
Solids, total suspendedweekly maximum≤ 27.3 kg/dall year001
Oil and grease, hexane extr methoddaily maximum≤ 10 mg/Lall year001
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≤ 1.52 kg/dMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 4.55 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ 2.28 kg/dMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ 6.82 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 averagereport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Nickel, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Aug, Dec001
Nickel, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Aug, Dec001
Zinc, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Aug, Dec001
Zinc, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Aug, Dec001
Cadmium, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Aug, Dec001
Cadmium, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Aug, Dec001
Lead, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Aug, Dec001
Lead, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Aug, Dec001
Chromium, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Aug, Dec001
Chromium, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Aug, Dec001
Copper, total recoverablemonthly averagereport only (ug/L)all year001
Copper, total recoverabledaily maximumreport only (ug/L)all year001
Chromium, hexavalent dissolved [as Cr]monthly averagereport only (ug/L)Mar, Jun, Aug, Dec001
Chromium, hexavalent dissolved [as Cr]daily maximumreport only (ug/L)Mar, Jun, Aug, Dec001
Coliform, fecal MF, MFC broth, 44.5 Cmonthly geometric mean≤ 1000 #/100mLJan, Feb, Mar, Apr, Nov, Dec001
Coliform, fecal MF, MFC broth, 44.5 Cweekly geometric mean≤ 2000 #/100mLJan, Feb, Mar, Apr, Nov, Dec001
E. coli, MTEC-MFmonthly geometric mean≤ 126 MPN/100mLMay–Oct001
E. coli, MTEC-MFweekly geometric mean≤ 240 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
Mercury, total low levelmonthly averagereport only (ng/L)all year001
Mercury, total low leveldaily maximumreport only (ng/L)all year001
Solids, total dissolved- 180 deg. Cmonthly averagereport only (mg/L)all year001
Solids, total dissolved- 180 deg. Cdaily maximumreport only (mg/L)all year001
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≤ 15.2 kg/dall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 22.8 kg/dall year001
Overflowsmonthly averagereport only (occur/mo)all year300
Overflowsdaily maximumreport only (occur/mo)all year300
Biosolids weight indluding admixturesmonthly averagereport only (dry ton)Dec586
Biosolids weight indluding admixturesdaily maximumreport only (dry ton)Dec586
pHdaily minimumreport only (SU)all year601
pHdaily maximumreport only (SU)all year601
Solids, total suspendedmonthly averagereport only (mg/L)all year601
Solids, total suspendeddaily maximumreport only (mg/L)all year601
Nickel, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Aug, Dec601
Nickel, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Aug, Dec601
Zinc, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Aug, Dec601
Zinc, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Aug, Dec601
Cadmium, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Aug, Dec601
Cadmium, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Aug, Dec601
Lead, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Aug, Dec601
Lead, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Aug, Dec601
Chromium, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Aug, Dec601
Chromium, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Aug, Dec601
Copper, total recoverablemonthly averagereport only (ug/L)all year601
Copper, total recoverabledaily maximumreport only (ug/L)all year601
Chromium, hexavalent dissolved [as Cr]monthly averagereport only (ug/L)Mar, Jun, Aug, Dec601
Chromium, hexavalent dissolved [as Cr]daily maximumreport only (ug/L)Mar, Jun, Aug, Dec601
Mercury, total low levelmonthly averagereport only (ng/L)all year601
Mercury, total low leveldaily maximumreport only (ng/L)all year601
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year601
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year601

How strict are these limits?

Cited limits by parameter: Ohio'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/OH0020966 · MCP: https://passage-data.com/mcp