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Sewage treatment plant, major discharger, Avon, New York. NPDES permit NY0024449 expired Oct 31, 2017; its limits still apply. Last 12 months: over a limit 11 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | Solids, settleable, daily maximum | 1 mL/L | ≤ .3 mL/L | 233% |
| January 2026 | Flow, in conduit or thru treatment plant, monthly average | 1.112 MGD | ≤ 1 MGD | 11% |
| February 2026 | Flow, in conduit or thru treatment plant, monthly average | 1.1 MGD | ≤ 1 MGD | 10% |
| March 2026 | BOD, 5-day, 20 deg. C, 7-day average | 104 mg/L | ≤ 45 mg/L | 131% |
| March 2026 | BOD, 5-day, 20 deg. C, 7-day average | 997.5 lb/d | ≤ 380 lb/d | 163% |
| March 2026 | BOD, 5-day, 20 deg. C, monthly average | 33 mg/L | ≤ 30 mg/L | 10% |
| March 2026 | BOD, 5-day, 20 deg. C, monthly average | 374 lb/d | ≤ 250 lb/d | 50% |
| March 2026 | Flow, in conduit or thru treatment plant, monthly average | 1.696 MGD | ≤ 1 MGD | 70% |
| April 2026 | Flow, in conduit or thru treatment plant, monthly average | 2.039 MGD | ≤ 1 MGD | 104% |
| May 2026 | Flow, in conduit or thru treatment plant, monthly average | 1.5 MGD | ≤ 1 MGD | 50% |
| July 2026 | Phosphorus, total [as P], monthly average | 1.1 mg/L | ≤ 1 mg/L | 10% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year |
| Turbidity | daily maximum | report only (NTU) | all year |
| BOD, 5-day, 20 deg. C | 30-day arithmetic mean | ≤ 58 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year |
| BOD, 5-day, 20 deg. C | 7-day arithmetic mean | ≤ 87 mg/L | all year |
| BOD, 5-day, 20 deg. C | 7-day average | ≤ 45 mg/L | all year |
| BOD, 5-day, 20 deg. C | 7-day average | ≤ 45 mg/L | all year |
| BOD, 5-day, 20 deg. C | 30-day arithmetic mean | ≤ 1326 lb/d | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 690 lb/d | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 250 lb/d | all year |
| BOD, 5-day, 20 deg. C | 7-day arithmetic mean | ≤ 1989 lb/d | all year |
| BOD, 5-day, 20 deg. C | 7-day average | ≤ 1030 lb/d | all year |
| BOD, 5-day, 20 deg. C | 7-day average | ≤ 380 lb/d | all year |
| BOD, 5-day, 20 deg. C | 30-day arithmetic mean | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | monthly average | report only (lb/d) | all year |
| pH | minimum | ≥ 6 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| pH | minimum | report only (SU) | all year |
| pH | maximum | report only (SU) | all year |
| Solids, total suspended | 30-day arithmetic mean | ≤ 39 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year |
| Solids, total suspended | 7-day arithmetic mean | ≤ 58 mg/L | all year |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year |
| Solids, total suspended | 30-day arithmetic mean | ≤ 888 lb/d | all year |
| Solids, total suspended | monthly average | ≤ 690 lb/d | all year |
| Solids, total suspended | monthly average | ≤ 250 lb/d | all year |
| Solids, total suspended | 7-day arithmetic mean | ≤ 1332 lb/d | all year |
| Solids, total suspended | 7-day average | ≤ 1030 lb/d | all year |
| Solids, total suspended | 7-day average | ≤ 380 lb/d | all year |
| Solids, total suspended | 30-day arithmetic mean | report only (mg/L) | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Solids, total suspended | monthly average | report only (lb/d) | all year |
| Solids, settleable | daily maximum | ≤ .3 mL/L | all year |
| Solids, settleable | daily maximum | report only (mL/L) | all year |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year |
| Oil & Grease | daily maximum | report only (lb/d) | all year |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 30 mg/L | May–Oct |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) | May–Oct |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | 30-day arithmetic mean | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (lb/d) | all year |
| Nitrogen, Kjeldahl, total [as N] | 30-day arithmetic mean | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | May–Oct |
| Phosphorus, total [as P] | monthly average | ≤ 1 mg/L | May–Oct |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Phosphorus, total [as P] | monthly average | ≤ 1 mg/L | May–Oct |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | Jan, Feb, Mar, Apr, Nov, Dec |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | May–Oct |
| Copper, total [as Cu] | maximum | ≤ 210 ug/L (alert, not enforceable) | all year |
| Nitrogen, ammonia, total [as NH3] | 30-day arithmetic mean | report only (mg/L) | all year |
| Nitrogen, ammonia, total [as NH3] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia, total [as NH3] | monthly average | ≤ 30 mg/L | May–Oct |
| Nitrogen, ammonia, total [as NH3] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia, total [as NH3] | monthly average | ≤ 30 mg/L | May–Oct |
| Nitrogen, ammonia, total [as NH3] | monthly average | report only (lb/d) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia, total [as NH3] | monthly average | report only (lb/d) | May–Oct |
| Nitrogen, ammonia, total [as NH3] | 30-day arithmetic mean | report only (mg/L) | all year |
| Nitrogen, ammonia, total [as NH3] | monthly average | report only (mg/L) | all year |
| Flow, in conduit or thru treatment plant | 30-day arithmetic mean | ≤ 2.75 MGD | all year |
| Flow, in conduit or thru treatment plant | monthly average | ≤ 2.75 MGD | all year |
| Flow, in conduit or thru treatment plant | monthly average | ≤ 1 MGD | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | 12-month average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | annual average | report only (MGD) | all year |
| Mercury, total [as Hg] | daily maximum | ≤ 50 ng/L | all year |
| Mercury, total [as Hg] | daily maximum | report only (g/d) | all year |
| BOD, 5-day, percent removal | monthly average minimum | ≥ 85 % | all year |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year |
Cited limits by parameter: New York'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/NY0024449 · MCP: https://passage-data.com/mcp