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Rockford, Village of

Sewage treatment plant, Rockford, Ohio. NPDES permit OH0022446, in force until Jun 30, 2027. Last 12 months: over a limit 11 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (24 values), outfall 300 form A monthly (2 values), outfall 601 form A monthly (6 values), outfall 901 form A monthly (4 values)
Renewal application due
Jan 1, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 56 reports late

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

Period endingParameterReportedLimitOver by
January 2026BOD, carbonaceous [5 day, 20 C], monthly average18≤ 16 mg/L13%
February 2026BOD, carbonaceous [5 day, 20 C], monthly average17≤ 16 mg/L6%
March 2026BOD, carbonaceous [5 day, 20 C], monthly average28≤ 16 mg/L75%
March 2026BOD, carbonaceous [5 day, 20 C], monthly average40≤ 27.3 kg/d47%
March 2026BOD, carbonaceous [5 day, 20 C], weekly maximum34≤ 24 mg/L42%
March 2026BOD, carbonaceous [5 day, 20 C], weekly maximum49≤ 40.9 kg/d20%
March 2026Solids, total suspended, monthly average47≤ 45 mg/L4%
March 2026Solids, total suspended, weekly maximum120≤ 115 kg/d4%
March 2026Solids, total suspended, weekly maximum80≤ 67.5 mg/L19%
May 2026BOD, carbonaceous [5 day, 20 C], monthly average18≤ 16 mg/L13%
June 2026E. coli, MTEC-MF, weekly geometric mean348.2≤ 284 MPN/100mL23%

Limits in force (86)

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≤ 45 mg/Lall year001
Solids, total suspendedweekly maximum≤ 67.5 mg/Lall year001
Solids, total suspendedmonthly average≤ 76.7 kg/dall year001
Solids, total suspendedweekly maximum≤ 115 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
Zinc, total recoverabledaily maximum≤ 530 ug/LMar, Jun, Aug, Dec001
Zinc, total recoverabledaily maximum≤ .903 kg/dMar, Jun, Aug, Dec001
Copper, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Aug, Dec001
Copper, total recoverabledaily 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
Mercury, total low levelmonthly averagereport only (ng/L)Mar, Jun, Aug, Dec001
Mercury, total low leveldaily maximumreport only (ng/L)Mar, Jun, Aug, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 16 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 24 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 27.3 kg/dall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 40.9 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
Fecal coliformdaily maximum≤ 200000 MPN/gDec581
Biosolids weight indluding admixturesmonthly averagereport only (dry ton)Dec581
Biosolids weight indluding admixturesdaily maximumreport only (dry ton)Dec581
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 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
Mercury, total low levelmonthly averagereport only (ng/L)Mar, Jun, Aug, Dec601
Mercury, total low leveldaily maximumreport only (ng/L)Mar, Jun, Aug, 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
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
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)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, 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
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)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.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OH0022446 · MCP: https://passage-data.com/mcp