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Sewerage Systems, Sardinia, Ohio. NPDES permit OH0115771, in force until Jul 31, 2027. Last 12 months: over a limit 7 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| January 2026 | Nitrogen, ammonia total [as N], monthly average | 3.9 | ≤ 2.8 mg/L | 39% |
| January 2026 | Nitrogen, ammonia total [as N], weekly maximum | 9.4 | ≤ 4.2 mg/L | 124% |
| February 2026 | BOD, carbonaceous [5 day, 20 C], weekly maximum | 19 | ≤ 15 mg/L | 27% |
| February 2026 | Nitrogen, ammonia total [as N], monthly average | 10.8 | ≤ 2.8 mg/L | 286% |
| February 2026 | Nitrogen, ammonia total [as N], weekly maximum | 18.4 | ≤ 4.2 mg/L | 338% |
| August 2026 | Solids, total suspended, monthly average | 19 | ≤ 12 mg/L | 58% |
| August 2026 | Solids, total suspended, weekly maximum | 37 | ≤ 18 mg/L | 106% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | monthly average | report only (deg C) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| pH | daily minimum | report only (SU) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| pH | daily maximum | report only (SU) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Solids, total suspended | weekly maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | weekly maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nickel, total recoverable | monthly average | report only (ug/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Cadmium, total recoverable | monthly average | report only (ug/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Lead, total recoverable | monthly average | report only (ug/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Chromium, total recoverable | monthly average | report only (ug/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Copper, total recoverable | monthly average | report only (ug/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | report only (ug/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Mercury, total low level | monthly average | report only (ng/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Mercury, total low level | daily maximum | report only (ng/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Overflows | monthly average | report only (occur/mo) | all year | 300 |
| Overflows | daily maximum | report only (occur/mo) | all year | 300 |
| Biosolids weight indluding admixtures | monthly average | report only (dry ton) | Dec | 586 |
| Biosolids weight indluding admixtures | daily maximum | report only (dry ton) | Dec | 586 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 601 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 601 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | 601 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 601 |
| Solids, total suspended | monthly average | ≤ 12 mg/L | all year | 602 |
| Solids, total suspended | weekly maximum | ≤ 18 mg/L | all year | 602 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.5 mg/L | May–Oct | 602 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.8 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 602 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 2.3 mg/L | May–Oct | 602 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 4.2 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 602 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 602 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 602 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | all year | 602 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 15 mg/L | all year | 602 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | Jan, Feb, Mar, Apr, Nov, Dec | 801 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Jan, Feb, Mar, Apr, Nov, Dec | 801 |
| Streamflow | monthly average | report only (cfs) | Jan, Feb, Mar, Apr, Nov, Dec | 801 |
| Streamflow | daily maximum | report only (cfs) | Jan, Feb, Mar, Apr, Nov, Dec | 801 |
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 801 |
| pH | daily minimum | report only (SU) | Jan, Feb, Mar, Apr, Nov, Dec | 801 |
| pH | daily maximum | report only (SU) | Jan, Feb, Mar, Apr, Nov, Dec | 801 |
| Solids, total suspended | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 801 |
| Solids, total suspended | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 801 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 801 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 801 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 801 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 801 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 801 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 801 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 801 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 801 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Jan, Feb, Mar, Apr, Nov, Dec | 801 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Nov, Dec | 801 |
| Copper, total recoverable | monthly average | report only (ug/L) | Jan, Feb, Mar, Apr, Nov, Dec | 801 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Jan, Feb, Mar, Apr, Nov, Dec | 801 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | Jan, Feb, Mar, Apr, Nov, Dec | 901 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Jan, Feb, Mar, Apr, Nov, Dec | 901 |
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 901 |
| pH | daily minimum | report only (SU) | Jan, Feb, Mar, Apr, Nov, Dec | 901 |
| pH | daily maximum | report only (SU) | Jan, Feb, Mar, Apr, Nov, Dec | 901 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 901 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 901 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 901 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 901 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 901 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 901 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 901 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 901 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 901 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 901 |
Cited limits by parameter: Ohio's rules and the federal ones.
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