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Wellington, Village of

Sewage treatment plant, Wellington, Ohio. NPDES permit OH0028037, in force until Nov 30, 2026. Last 12 months: over a limit 12 times (last April 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (50 values), outfall 300 form A monthly (2 values), outfall 601 form A monthly (8 values), outfall 801 form A monthly (13 values), outfall 901 form A monthly (14 values)
Renewal application due
Jun 3, 2026 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
17 values over a limit, 0 required values missing, 0 of 63 reports late

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

Period endingParameterReportedLimitOver by
December 2025Mercury, total low level, monthly average.0000167≤ .000012 kg/d39%
December 2025Mercury, total low level, monthly average6.67≤ 4.3 ng/L55%
January 2026Solids, total suspended, monthly average24.26≤ 15 mg/L62%
January 2026Solids, total suspended, monthly average49.24≤ 43 kg/d15%
January 2026Solids, total suspended, weekly maximum29.75≤ 20 mg/L49%
January 2026Solids, total suspended, weekly maximum61.7≤ 57 kg/d8%
February 2026Solids, total suspended, monthly average20.92≤ 15 mg/L39%
February 2026Solids, total suspended, monthly average45.43≤ 43 kg/d6%
February 2026Solids, total suspended, weekly maximum23.4≤ 20 mg/L17%
February 2026Solids, total suspended, weekly maximum64.71≤ 57 kg/d14%
April 2026Solids, total suspended, monthly average61.3≤ 43 kg/d43%
April 2026Solids, total suspended, weekly maximum171≤ 57 kg/d200%

Limits in force (121)

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≤ 15 mg/Lall year001
Solids, total suspendedweekly maximum≤ 20 mg/Lall year001
Solids, total suspendedmonthly average≤ 43 kg/dall year001
Solids, total suspendedweekly maximum≤ 57 kg/dall year001
Oil and grease, hexane extr methoddaily maximum≤ 10 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 1.3 mg/LMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 3.5 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ 2 mg/LMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ 5 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 3.7 kg/dMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 9.9 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ 5.68 kg/dMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ 14.2 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, Sep, Dec001
Nickel, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec001
Zinc, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec001
Zinc, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec001
Cadmium, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec001
Cadmium, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec001
Lead, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec001
Lead, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec001
Chromium, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec001
Chromium, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec001
Copper, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec001
Copper, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec001
Chromium, hexavalent dissolved [as Cr]monthly averagereport only (ug/L)Mar, Jun, Sep, Dec001
Chromium, hexavalent dissolved [as Cr]daily maximumreport only (ug/L)Mar, Jun, Sep, Dec001
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
Mercury, total low levelmonthly average≤ 4.3 ng/LMar, Jun, Sep, Dec001
Mercury, total low leveldaily maximum≤ 1700 ng/LMar, Jun, Sep, Dec001
Mercury, total low levelmonthly average≤ .000012 kg/dMar, Jun, Sep, Dec001
Mercury, total low leveldaily maximum≤ .0048 kg/dMar, Jun, Sep, Dec001
Cyanide, free availablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec001
Cyanide, free availabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec001
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≤ 28 kg/dall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 43 kg/dall year001
Overflowsmonthly averagereport only (occur/mo)all year300
Overflowsdaily maximumreport only (occur/mo)all year300
Nitrogen, ammonia in bottom depositsmonthly averagereport only (mg/kg)Dec581
Nitrogen, ammonia in bottom depositsdaily maximumreport only (mg/kg)Dec581
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/kg)Dec581
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/kg)Dec581
Phosphorous, total, in bottom depositsmonthly averagereport only (mg/kg)Dec581
Phosphorous, total, in bottom depositsdaily maximumreport only (mg/kg)Dec581
Potassium, in bottom depositsmonthly averagereport only (mg/kg)Dec581
Potassium, in bottom depositsdaily maximumreport only (mg/kg)Dec581
Arsenic, dry weightdaily maximum≤ 75 mg/kgDec581
Cadmium, in bottom deposits [dry wgt]daily maximum≤ 85 mg/kgDec581
Copper in bottom deposits [dry wgt]daily maximum≤ 4300 mg/kgDec581
Lead, total dry weight [as Pb]daily maximum≤ 840 mg/kgDec581
Nickel, tot in bottom deposits [dry wgt]daily maximum≤ 420 mg/kgDec581
Zinc in bottom deposits [dry wgt]daily maximum≤ 7500 mg/kgDec581
Selenium, dry weightdaily maximum≤ 100 mg/kgDec581
Biosolids weight indluding admixturesmonthly averagereport only (dry ton)Dec581
Biosolids weight indluding admixturesdaily maximumreport only (dry ton)Dec581
Fecal coliform in sludge, CFU/gramdaily maximum≤ 2000000 CFU/gDec581
Sludge weight, drymonthly averagereport only (dry ton)Dec581
Sludge weight, drydaily maximumreport only (dry ton)Dec581
Mercury, tot in bot deposits [dry wgt]daily maximum≤ 57 mg/kgDec581
Molybdenum, sludge, total, dry weight [as Mo]daily maximum≤ 75 mg/kgDec581
Biosolids weight indluding admixturesmonthly averagereport only (dry ton)Dec586
Biosolids weight indluding admixturesdaily maximumreport only (dry ton)Dec586
Sludge weight, drymonthly averagereport only (dry ton)Dec588
Sludge weight, drydaily maximumreport only (dry ton)Dec588
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
Mercury, total low levelmonthly averagereport only (ng/L)Mar, Jun, Sep, Dec601
Mercury, total low leveldaily maximumreport only (ng/L)Mar, Jun, Sep, Dec601
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
Temperature, water deg. centigrademonthly averagereport only (deg C)all year801
Temperature, water deg. centigradedaily maximumreport only (deg C)all year801
Oxygen, dissolved [DO]daily minimumreport only (mg/L)all year801
pHdaily minimumreport only (SU)all year801
pHdaily maximumreport only (SU)all year801
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec801
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec801
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec801
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec801
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec801
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec801
Phosphorus, total [as P]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec801
Phosphorus, total [as P]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec801
E. coli, MTEC-MFmonthly geometric meanreport only (MPN/100mL)Jun–Aug801
E. coli, MTEC-MFdaily maximumreport only (MPN/100mL)Jun–Aug801
Temperature, water deg. centigrademonthly averagereport only (deg C)all year901
Temperature, water deg. centigradedaily maximumreport only (deg C)all year901
pHdaily minimumreport only (SU)all year901
pHdaily maximumreport only (SU)all year901
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec901
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec901
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec901
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec901
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec901
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec901
Phosphorus, total [as P]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec901
Phosphorus, total [as P]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec901
Hardness, total [as CaCO3]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec901
Hardness, total [as CaCO3]daily maximumreport only (mg/L)Mar, Jun, Sep, 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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Your permit document is the final word. As JSON: /api/v1/permits/OH0028037 · MCP: https://passage-data.com/mcp