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Village of Antwerp WWTP

Sewage treatment plant, Antwerp, Ohio. NPDES permit OH0022195, in force until Aug 31, 2029. Last 12 months: over a limit 11 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (27 values), outfall 300 form A monthly (2 values), outfall 601 form A monthly (6 values), outfall 801 form A monthly (4 values), outfall 901 form A monthly (8 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
5 values over a limit, 0 required values missing, 5 of 60 reports late

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

Period endingParameterReportedLimitOver by
October 2025Solids, total suspended, monthly average28≤ 20 mg/L40%
January 2026BOD, carbonaceous [5 day, 20 C], monthly average23≤ 20 mg/L15%
January 2026BOD, carbonaceous [5 day, 20 C], monthly average28≤ 25 kg/d12%
January 2026BOD, carbonaceous [5 day, 20 C], weekly maximum36≤ 35 mg/L3%
February 2026BOD, carbonaceous [5 day, 20 C], monthly average25≤ 20 mg/L25%
February 2026BOD, carbonaceous [5 day, 20 C], weekly maximum38≤ 35 mg/L9%
February 2026BOD, carbonaceous [5 day, 20 C], weekly maximum54≤ 44 kg/d23%
July 2026Solids, total suspended, monthly average22≤ 20 mg/L10%
July 2026Solids, total suspended, weekly maximum37≤ 35 mg/L6%
August 2026Chlorine, total residual, daily maximum.1≤ .031 mg/L223%
August 2026E. coli, MTEC-MF, weekly geometric mean1650≤ 284 MPN/100mL481%

Limits in force (71)

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
pHdaily minimum≥ 6.5 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 20 mg/Lall year001
Solids, total suspendedweekly maximum≤ 35 mg/Lall year001
Solids, total suspendedmonthly average≤ 25 kg/dall year001
Solids, total suspendedweekly maximum≤ 44 kg/dall year001
Oil and grease, hexane extr methoddaily maximum≤ 10 mg/Lall year001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia 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
Lead, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Aug, Dec001
Lead, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Aug, Dec001
Copper, total recoverablemonthly average≤ 23 ug/LMar, Jun, Aug, Dec001
Copper, total recoverabledaily maximum≤ 41 ug/LMar, Jun, Aug, Dec001
Copper, total recoverablemonthly average≤ .0288 kg/dMar, Jun, Aug, Dec001
Copper, total recoverabledaily maximum≤ .0513 kg/dMar, 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≤ .031 mg/LMay–Oct001
Mercury, total low levelmonthly average≤ 5 ng/LMar, Jun, Aug, Dec001
Mercury, total low leveldaily maximum≤ 1700 ng/LMar, Jun, Aug, Dec001
Mercury, total low levelmonthly average≤ .0000062 kg/dMar, Jun, Aug, Dec001
Mercury, total low leveldaily maximum≤ .0021 kg/dMar, Jun, Aug, 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≤ 20 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 35 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 kg/dall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 44 kg/dall year001
Overflowsmonthly averagereport only (occur/mo)all year300
Overflowsdaily maximumreport only (occur/mo)all year300
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
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
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec801
Nitrite + Nitrate 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
E. coli, MTEC-MFmonthly geometric meanreport only (MPN/100mL)May–Oct801
E. coli, MTEC-MFdaily maximumreport only (MPN/100mL)May–Oct801
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
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec901
Nitrite + Nitrate 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
Hardness, total [as CaCO3]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec901
Hardness, total [as CaCO3]daily maximumreport only (mg/L)Mar, Jun, Aug, Dec901
E. coli, MTEC-MFmonthly geometric meanreport only (MPN/100mL)May–Oct901
E. coli, MTEC-MFdaily maximumreport only (MPN/100mL)May–Oct901

New limits from Aug 1, 2029

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Nitrogen, ammonia total [as N], monthly average0.2 mg/L (May–Oct)new7.38 mg/L (5 values)36.9×
Nitrogen, ammonia total [as N], monthly average0.46 mg/L (Jan, Feb, Mar, Apr, Nov, Dec)new25.7 mg/L (6 values)55.9×
Nitrogen, ammonia total [as N], monthly average0.25 kg/d (May–Oct)new——
Nitrogen, ammonia total [as N], monthly average0.57 kg/d (Jan, Feb, Mar, Apr, Nov, Dec)new——
Nitrogen, ammonia total [as N], weekly maximum0.37 kg/d (May–Oct)new——
Nitrogen, ammonia total [as N], weekly maximum0.3 mg/L (May–Oct)new——
Nitrogen, ammonia total [as N], weekly maximum0.69 mg/L (Jan, Feb, Mar, Apr, Nov, Dec)new——
Nitrogen, ammonia total [as N], weekly maximum0.86 kg/d (Jan, Feb, Mar, Apr, Nov, Dec)new——

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/OH0022195 · MCP: https://passage-data.com/mcp