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City of Vermilion WPCF

Sewage treatment plant, major discharger, Vermilion, Ohio. NPDES permit OH0023612, in force until Aug 31, 2027. Last 12 months: over a limit 14 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 21 days after each period: outfall 001 form A monthly (47 values), outfall 300 form A monthly (2 values), outfall 302 form A monthly (4 values), outfall 601 form A monthly (12 values), outfall 801 form A monthly (8 values), outfall 901 form A monthly (14 values)
Renewal application due
Mar 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
19 values over a limit, 0 required values missing, 6 of 74 reports late

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

All 14 values over a limit
Period endingParameterReportedLimitOver by
March 2026Solids, total suspended, weekly maximum627.4≤ 426 kg/d47%
March 2026Solids, total suspended, weekly maximum64.6≤ 45 mg/L44%
May 2026Solids, total suspended, monthly average322.5≤ 284 kg/d14%
May 2026Solids, total suspended, weekly maximum1001≤ 426 kg/d135%
May 2026Solids, total suspended, weekly maximum52.05≤ 45 mg/L16%
July 2026Solids, total suspended, monthly average498≤ 284 kg/d75%
July 2026Solids, total suspended, monthly average57.2≤ 30 mg/L91%
July 2026Solids, total suspended, weekly maximum1700≤ 426 kg/d299%
July 2026Solids, total suspended, weekly maximum176≤ 45 mg/L291%
August 2026E. coli, MTEC-MF, weekly geometric mean396≤ 284 MPN/100mL39%
August 2026Phosphorus, total [as P], weekly maximum1.54≤ 1.5 mg/L3%
August 2026Phosphorus, total [as P], weekly maximum19.3≤ 14.2 kg/d36%
August 2026Solids, total suspended, weekly maximum59.17≤ 45 mg/L31%
August 2026Solids, total suspended, weekly maximum963.8≤ 426 kg/d126%

Limits in force (124)

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≥ 5 mg/Lall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly maximum≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 284 kg/dall year001
Solids, total suspendedweekly maximum≤ 426 kg/dall year001
Oil and grease, hexane extr methoddaily maximum≤ 10 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 1.2 mg/LMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 13.4 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ 1.8 mg/LMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ 20.1 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 11.36 kg/dMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 127 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ 17.04 kg/dMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ 191 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≤ 9.5 kg/dall year001
Phosphorus, total [as P]weekly maximum≤ 14.2 kg/dall year001
Phosphate, ortho, dissolved [as P]monthly averagereport only (mg/L)all year001
Phosphate, ortho, dissolved [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 average≤ 16 ug/Lall year001
Copper, total recoverabledaily maximum≤ 26 ug/Lall year001
Copper, total recoverablemonthly average≤ .152 kg/dall year001
Copper, total recoverabledaily maximum≤ .247 kg/dall 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
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
Chlorine, total residualdaily maximum≤ .02 mg/LMay–Oct001
Mercury, total low levelmonthly average≤ 2 ng/Lall year001
Mercury, total low leveldaily maximum≤ 1700 ng/Lall year001
Mercury, total low levelmonthly average≤ .000019 kg/dall year001
Mercury, total low leveldaily maximum≤ .0161 kg/dall year001
Cyanide, free availablemonthly average≤ 5.2 ug/Lall year001
Cyanide, free availabledaily maximum≤ 23 ug/Lall year001
Cyanide, free availablemonthly average≤ .0493 kg/dall year001
Cyanide, free availabledaily maximum≤ .218 kg/dall year001
Toxicity [acute], Ceriodaphnia dubiadaily maximum≤ 1 tox acuteJun, Aug001
Toxicity [chronic], Ceriodaphnia dubiamonthly averagereport only (tox chronic)Jun, Aug001
Toxicity [chronic], Ceriodaphnia dubiadaily maximumreport only (tox chronic)Jun, Aug001
Toxicity [acute], Pimephales promelas [Fathead Minnow]daily maximum≤ 1 tox acuteJun, Aug001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]monthly average≤ 1 tox chronicJun, Aug001
pH, maximumdaily maximum≤ 9 SUall year001
pH, minimumdaily minimum≥ 6.5 SUall 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≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 37.5 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 237 kg/dall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 355 kg/dall year001
Overflowsmonthly averagereport only (occur/mo)all year300
Overflowsdaily maximumreport only (occur/mo)all year300
Overflowsmonthly averagereport only (occur/mo)all year302
Overflowsdaily maximumreport only (occur/mo)all year302
Overflow volume [SS0 volume, CSO volume]monthly averagereport only (Mgal)all year302
Overflow volume [SS0 volume, CSO volume]daily maximumreport only (Mgal)all year302
Biosolids weight indluding admixturesmonthly averagereport only (dry ton)Dec586
Biosolids weight indluding admixturesdaily maximumreport only (dry ton)Dec586
Sludge waste from secondary clarifiersmonthly averagereport only (gal)Dec588
Sludge waste from secondary clarifiersdaily maximumreport only (gal)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
Cyanide, total [as CN]monthly averagereport only (mg/L)all year601
Cyanide, total [as CN]daily maximumreport only (mg/L)all year601
Copper, total recoverablemonthly averagereport only (ug/L)all year601
Copper, total recoverabledaily maximumreport only (ug/L)all year601
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
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year801
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year801
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year801
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year801
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year801
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year801
Phosphorus, total [as P]monthly averagereport only (mg/L)all year801
Phosphorus, total [as P]daily maximumreport only (mg/L)all year801
E. coli, MTEC-MFmonthly geometric meanreport only (MPN/100mL)Jun–Aug801
E. coli, MTEC-MFdaily maximumreport only (MPN/100mL)Jun–Aug801
%Effect Static Renewal 48Hr Acute Ceriodaphnia dubiamonthly averagereport only (%)Jun, Aug801
%Effect Static Renewal 48Hr Acute Ceriodaphnia dubiadaily maximumreport only (%)Jun, Aug801
%Effect Static Renewal 96Hr Acute Pimephales promelasmonthly averagereport only (%)Jun, Aug801
%Effect Static Renewal 96Hr Acute Pimephales promelasdaily maximumreport only (%)Jun, Aug801
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly averagereport only (%)Jun, Aug801
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximumreport only (%)Jun, Aug801
%Effect Static Renewal 7Day Chronic Pimephales promelasmonthly averagereport only (%)Jun, Aug801
%Effect Static Renewal 7Day Chronic Pimephales promelasdaily maximumreport only (%)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)all year901
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year901
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year901
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year901
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year901
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year901
Phosphorus, total [as P]monthly averagereport only (mg/L)all year901
Phosphorus, total [as P]daily maximumreport only (mg/L)all year901
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year901
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year901
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/OH0023612 · MCP: https://passage-data.com/mcp