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Sewerage Systems, Swanton, Ohio. NPDES permit OH0138401, in force until Apr 30, 2027. Last 12 months: over a limit 86 times (last July 2026), 146 required values missing, 6 of 24 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (23 values), outfall 002 form A monthly (23 values)
Renewal application due
Nov 1, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
158 values over a limit, 0 required values missing, 0 of 26 reports late

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

All 86 values over a limit
Period endingOutfallParameterReportedLimitOver by
October 2025001E. coli, MTEC-MF, monthly geometric mean2400≤ 126 MPN/100mL1805%
October 2025001E. coli, MTEC-MF, monthly geometric mean2400≤ 126 MPN/100mL1805%
October 2025001E. coli, MTEC-MF, weekly geometric mean7560≤ 284 MPN/100mL2562%
October 2025001E. coli, MTEC-MF, weekly geometric mean7560≤ 284 MPN/100mL2562%
October 2025001Nitrogen, ammonia total [as N], monthly average.094≤ .068 kg/d38%
October 2025001Nitrogen, ammonia total [as N], monthly average.094≤ .068 kg/d38%
October 2025001Nitrogen, ammonia total [as N], monthly average2.3≤ 1 mg/L130%
October 2025001Nitrogen, ammonia total [as N], monthly average2.3≤ 1 mg/L130%
October 2025001Nitrogen, ammonia total [as N], weekly maximum.13≤ .1 kg/d30%
October 2025001Nitrogen, ammonia total [as N], weekly maximum.13≤ .1 kg/d30%
October 2025001Nitrogen, ammonia total [as N], weekly maximum3.2≤ 1.5 mg/L113%
October 2025001Nitrogen, ammonia total [as N], weekly maximum3.2≤ 1.5 mg/L113%
October 2025001Solids, total suspended, monthly average2.45≤ .82 kg/d199%
October 2025001Solids, total suspended, monthly average2.45≤ .82 kg/d199%
October 2025001Solids, total suspended, monthly average60≤ 12 mg/L400%
October 2025001Solids, total suspended, monthly average60≤ 12 mg/L400%
October 2025001Solids, total suspended, weekly maximum104≤ 18 mg/L478%
October 2025001Solids, total suspended, weekly maximum104≤ 18 mg/L478%
October 2025001Solids, total suspended, weekly maximum4.25≤ 1.23 kg/d246%
October 2025001Solids, total suspended, weekly maximum4.25≤ 1.23 kg/d246%
October 2025002Nitrogen, ammonia total [as N], monthly average2.38≤ .114 kg/d1988%
October 2025002Nitrogen, ammonia total [as N], monthly average2.38≤ .114 kg/d1988%
October 2025002Nitrogen, ammonia total [as N], monthly average38≤ 1 mg/L3700%
October 2025002Nitrogen, ammonia total [as N], monthly average38≤ 1 mg/L3700%
October 2025002Nitrogen, ammonia total [as N], weekly maximum2.72≤ .171 kg/d1491%
October 2025002Nitrogen, ammonia total [as N], weekly maximum2.72≤ .171 kg/d1491%
October 2025002Nitrogen, ammonia total [as N], weekly maximum39.9≤ 1.5 mg/L2560%
October 2025002Nitrogen, ammonia total [as N], weekly maximum39.9≤ 1.5 mg/L2560%
November 2025001Solids, total suspended, monthly average1.4≤ .82 kg/d71%
November 2025001Solids, total suspended, monthly average1.4≤ .82 kg/d71%
November 2025001Solids, total suspended, monthly average34≤ 12 mg/L183%
November 2025001Solids, total suspended, monthly average34≤ 12 mg/L183%
November 2025001Solids, total suspended, weekly maximum1.4≤ 1.23 kg/d14%
November 2025001Solids, total suspended, weekly maximum1.4≤ 1.23 kg/d14%
November 2025001Solids, total suspended, weekly maximum34≤ 18 mg/L89%
November 2025001Solids, total suspended, weekly maximum34≤ 18 mg/L89%
November 2025002BOD, carbonaceous [5 day, 20 C], monthly average3.3≤ 1.14 kg/d189%
November 2025002BOD, carbonaceous [5 day, 20 C], monthly average3.3≤ 1.14 kg/d189%
November 2025002BOD, carbonaceous [5 day, 20 C], monthly average48≤ 10 mg/L380%
November 2025002BOD, carbonaceous [5 day, 20 C], monthly average48≤ 10 mg/L380%
November 2025002BOD, carbonaceous [5 day, 20 C], weekly maximum3.3≤ 1.71 kg/d93%
November 2025002BOD, carbonaceous [5 day, 20 C], weekly maximum3.3≤ 1.71 kg/d93%
November 2025002BOD, carbonaceous [5 day, 20 C], weekly maximum48≤ 15 mg/L220%
November 2025002BOD, carbonaceous [5 day, 20 C], weekly maximum48≤ 15 mg/L220%
November 2025002Nitrogen, ammonia total [as N], monthly average3.94≤ .341 kg/d1055%
November 2025002Nitrogen, ammonia total [as N], monthly average3.94≤ .341 kg/d1055%
November 2025002Nitrogen, ammonia total [as N], monthly average57.9≤ 3 mg/L1830%
November 2025002Nitrogen, ammonia total [as N], monthly average57.9≤ 3 mg/L1830%
November 2025002Nitrogen, ammonia total [as N], weekly maximum3.94≤ .511 kg/d671%
November 2025002Nitrogen, ammonia total [as N], weekly maximum3.94≤ .511 kg/d671%
November 2025002Nitrogen, ammonia total [as N], weekly maximum57.9≤ 4.5 mg/L1187%
November 2025002Nitrogen, ammonia total [as N], weekly maximum57.9≤ 4.5 mg/L1187%
January 2026001Nitrogen, ammonia total [as N], monthly average1.91≤ .2 kg/d855%
January 2026001Nitrogen, ammonia total [as N], monthly average46.8≤ 3 mg/L1460%
January 2026001Nitrogen, ammonia total [as N], weekly maximum1.91≤ .31 kg/d516%
January 2026001Nitrogen, ammonia total [as N], weekly maximum46.8≤ 4.5 mg/L940%
January 2026002BOD, carbonaceous [5 day, 20 C], monthly average1.4≤ 1.14 kg/d23%
January 2026002BOD, carbonaceous [5 day, 20 C], monthly average20≤ 10 mg/L100%
January 2026002BOD, carbonaceous [5 day, 20 C], weekly maximum20≤ 15 mg/L33%
January 2026002Nitrogen, ammonia total [as N], monthly average2.44≤ .341 kg/d616%
January 2026002Nitrogen, ammonia total [as N], monthly average35.8≤ 3 mg/L1093%
January 2026002Nitrogen, ammonia total [as N], weekly maximum2.44≤ .511 kg/d377%
January 2026002Nitrogen, ammonia total [as N], weekly maximum35.8≤ 4.5 mg/L696%
February 2026001Nitrogen, ammonia total [as N], monthly average1.19≤ .2 kg/d495%
February 2026001Nitrogen, ammonia total [as N], monthly average29.2≤ 3 mg/L873%
February 2026001Nitrogen, ammonia total [as N], weekly maximum1.19≤ .31 kg/d284%
February 2026001Nitrogen, ammonia total [as N], weekly maximum29.2≤ 4.5 mg/L549%
February 2026002BOD, carbonaceous [5 day, 20 C], monthly average1.17≤ 1.14 kg/d3%
February 2026002BOD, carbonaceous [5 day, 20 C], monthly average17.2≤ 10 mg/L72%
February 2026002BOD, carbonaceous [5 day, 20 C], weekly maximum17.2≤ 15 mg/L15%
February 2026002Nitrogen, ammonia total [as N], monthly average2.55≤ .341 kg/d648%
February 2026002Nitrogen, ammonia total [as N], monthly average37.4≤ 3 mg/L1147%
February 2026002Nitrogen, ammonia total [as N], weekly maximum2.55≤ .511 kg/d399%
February 2026002Nitrogen, ammonia total [as N], weekly maximum37.4≤ 4.5 mg/L731%
March 2026002Nitrogen, ammonia total [as N], monthly average2.37≤ .341 kg/d595%
March 2026002Nitrogen, ammonia total [as N], monthly average37.6≤ 3 mg/L1153%
March 2026002Nitrogen, ammonia total [as N], weekly maximum2.37≤ .511 kg/d364%
March 2026002Nitrogen, ammonia total [as N], weekly maximum37.6≤ 4.5 mg/L736%
June 2026002BOD, carbonaceous [5 day, 20 C], monthly average2.546≤ 1.14 kg/d123%
June 2026002BOD, carbonaceous [5 day, 20 C], monthly average50.95≤ 10 mg/L410%
June 2026002BOD, carbonaceous [5 day, 20 C], weekly maximum2.546≤ 1.71 kg/d49%
June 2026002BOD, carbonaceous [5 day, 20 C], weekly maximum50.95≤ 15 mg/L240%
June 2026002E. coli, MTEC-MF, monthly geometric mean134≤ 126 MPN/100mL6%
June 2026002E. coli, MTEC-MF, weekly geometric mean687≤ 284 MPN/100mL142%
July 2026001BOD, carbonaceous [5 day, 20 C], monthly average10.7≤ 10 mg/L7%
July 2026001pH, daily minimum6.2≥ 6.5 SU—

Limits in force (66)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademonthly averagereport only (deg C)all year001
Temperature, water deg. centigradedaily maximumreport only (deg C)all year001
Flow ratemonthly averagereport only (gal/d)all year001
Flow ratedaily maximumreport only (gal/d)all 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≤ .82 kg/dall year001
Solids, total suspendedweekly maximum≤ 1.23 kg/dall 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≤ .068 kg/dMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ .2 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly maximum≤ .1 kg/dMay–Oct001
Nitrogen, ammonia total [as N]weekly maximum≤ .31 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec001
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Mar, Jun, Aug, Dec001
Phosphorus, total [as P]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec001
Phosphorus, total [as P]daily maximumreport only (mg/L)Mar, Jun, Aug, Dec001
Turbidity [severity]monthly averagereport only (severity)all year001
Turbidity [severity]daily maximumreport only (severity)all year001
E. coli, MTEC-MFmonthly geometric mean≤ 126 MPN/100mLMay–Oct001
E. coli, MTEC-MFweekly geometric mean≤ 284 MPN/100mLMay–Oct001
Chlorine, total residualdaily maximum≤ .038 mg/LMay–Oct001
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≤ .7 kg/dall year001
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 1 kg/dall year001
Temperature, water deg. centigrademonthly averagereport only (deg C)all year002
Temperature, water deg. centigradedaily maximumreport only (deg C)all year002
Flow ratemonthly averagereport only (gal/d)all year002
Flow ratedaily maximumreport only (gal/d)all year002
pHdaily minimum≥ 6.5 SUall year002
pHdaily maximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 12 mg/Lall year002
Solids, total suspendedweekly maximum≤ 18 mg/Lall year002
Solids, total suspendedmonthly average≤ 1.37 kg/dall year002
Solids, total suspendedweekly maximum≤ 2.05 kg/dall year002
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LMay–Oct002
Nitrogen, ammonia total [as N]monthly average≤ 3 mg/LJan, Feb, Mar, Apr, Nov, Dec002
Nitrogen, ammonia total [as N]weekly maximum≤ 1.5 mg/LMay–Oct002
Nitrogen, ammonia total [as N]weekly maximum≤ 4.5 mg/LJan, Feb, Mar, Apr, Nov, Dec002
Nitrogen, ammonia total [as N]monthly average≤ .114 kg/dMay–Oct002
Nitrogen, ammonia total [as N]monthly average≤ .341 kg/dJan, Feb, Mar, Apr, Nov, Dec002
Nitrogen, ammonia total [as N]weekly maximum≤ .171 kg/dMay–Oct002
Nitrogen, ammonia total [as N]weekly maximum≤ .511 kg/dJan, Feb, Mar, Apr, Nov, Dec002
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec002
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Mar, Jun, Aug, Dec002
Phosphorus, total [as P]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec002
Phosphorus, total [as P]daily maximumreport only (mg/L)Mar, Jun, Aug, Dec002
Turbidity [severity]monthly averagereport only (severity)all year002
Turbidity [severity]daily maximumreport only (severity)all year002
E. coli, MTEC-MFmonthly geometric mean≤ 126 MPN/100mLMay–Oct002
E. coli, MTEC-MFweekly geometric mean≤ 284 MPN/100mLMay–Oct002
Chlorine, total residualdaily maximum≤ .038 mg/LMay–Oct002
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year002
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 15 mg/Lall year002
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1.14 kg/dall year002
BOD, carbonaceous [5 day, 20 C]weekly maximum≤ 1.71 kg/dall year002
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

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/OH0138401 · MCP: https://passage-data.com/mcp