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Sewage treatment plant, major discharger, Cortland, New York. NPDES permit NY0027561, in force until Apr 30, 2031. Last 12 months: over a limit 11 times (last August 2026), 2 required values missing, 1 of 35 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Oxygen demand, ultimate, daily maximum | 108 mg/L | ≤ 40 mg/L | 170% |
| April 2026 | Flow, in conduit or thru treatment plant, monthly average | 11.6 MGD | ≤ 9 MGD | 29% |
| April 2026 | Solids, settleable, daily maximum | .4 mL/L | ≤ .3 mL/L | 33% |
| April 2026 | Solids, suspended percent removal, monthly average minimum | 77 % | ≥ 85 % | 53% |
| May 2026 | Phosphorus, total [as P], 12-month total | 14335.6 lb/yr | ≤ 13700 lb/yr | 5% |
| June 2026 | Phosphorus, total [as P], 12-month total | 14213.2 lb/yr | ≤ 13700 lb/yr | 4% |
| June 2026 | Phosphorus, total [as P], monthly average | 1.29 mg/L | ≤ 1 mg/L | 29% |
| July 2026 | Nitrogen, ammonia total [as N], monthly average | 2.5 mg/L | ≤ 2.2 mg/L | 14% |
| August 2026 | Nitrogen, ammonia total [as N], monthly average | 2.3 mg/L | ≤ 2.2 mg/L | 5% |
| August 2026 | Phosphorus, total [as P], 12-month total | 14762.6 lb/yr | ≤ 13700 lb/yr | 8% |
| August 2026 | Phosphorus, total [as P], monthly average | 2.64 mg/L | ≤ 1 mg/L | 164% |
| 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 |
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | all year |
| pH | minimum | ≥ 6 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 2200 lb/d | all year |
| Solids, total suspended | 7-day average | ≤ 3400 lb/d | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Solids, total suspended | 7-day average | report only (mg/L) | all year |
| Solids, settleable | daily maximum | ≤ .3 mL/L | all year |
| Solids, settleable | daily maximum | report only (mL/L) | all year |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year |
| Nitrogen, total [as N] | monthly total | report only (lb/mo) | all year |
| Nitrogen, total [as N] | 12-month total | ≤ 219000 lb/yr | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.2 mg/L | Jun–Oct |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.9 mg/L | Jun–Oct |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 7 mg/L | Jan, Feb, Mar, Apr, May, Nov, Dec |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) (alert, not enforceable) | Jun–Oct |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) (alert, not enforceable) | Jan, Feb, Mar, Apr, May, Nov, Dec |
| Nitrogen, nitrite total [as N] | daily maximum | ≤ .35 mg/L (alert, not enforceable) | Jun–Oct |
| Nitrogen, nitrite total [as N] | daily maximum | ≤ .62 mg/L (alert, not enforceable) | Jan, Feb, Mar, Apr, May, Nov, Dec |
| Nitrogen, nitrite total [as N] | monthly average | report only (lb/d) (alert, not enforceable) | Jun–Oct |
| Nitrogen, nitrite total [as N] | monthly average | report only (lb/d) (alert, not enforceable) | Jan, Feb, Mar, Apr, May, Nov, Dec |
| Nitrogen, nitrite total [as N] | daily maximum | report only (lb/d) (alert, not enforceable) | Jun–Oct |
| Nitrogen, nitrite total [as N] | daily maximum | report only (lb/d) (alert, not enforceable) | Jan, Feb, Mar, Apr, May, Nov, Dec |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, nitrate total [as N] | monthly average | report only (lb/d) | 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 |
| Phosphorus, total [as P] | monthly average | ≤ 1 mg/L | all year |
| Phosphorus, total [as P] | monthly total | report only (lb/mo) | all year |
| Phosphorus, total [as P] | 12-month total | ≤ 13700 lb/yr | all year |
| Cyanide, free [amenable to chlorination] | daily maximum | ≤ 19 ug/L | all year |
| Cyanide, free [amenable to chlorination] | daily maximum | report only (ug/L) | all year |
| Cyanide, free [amenable to chlorination] | daily maximum | report only (lb/d) | all year |
| Cyanide, free [amenable to chlorination] | daily maximum | report only (lb/d) | all year |
| Copper, total [as Cu] | daily maximum | report only (mg/L) (alert, not enforceable) | all year |
| Copper, total [as Cu] | daily maximum | ≤ 2.7 lb/d (alert, not enforceable) | all year |
| Iron, total [as Fe] | daily maximum | report only (mg/L) (alert, not enforceable) | all year |
| Iron, total [as Fe] | daily maximum | ≤ 130 lb/d (alert, not enforceable) | all year |
| Lead, total [as Pb] | daily maximum | report only (mg/L) (alert, not enforceable) | all year |
| Lead, total [as Pb] | daily maximum | ≤ 1.2 lb/d (alert, not enforceable) | all year |
| Silver, total [as Ag] | daily maximum | report only (mg/L) (alert, not enforceable) | all year |
| Silver, total [as Ag] | daily maximum | ≤ .15 lb/d (alert, not enforceable) | all year |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | all year |
| Cadmium, total recoverable | daily maximum | ≤ .74 lb/d | all year |
| Phenolics, total recoverable | daily maximum | report only (ug/L) | all year |
| Phenolics, total recoverable | daily maximum | ≤ .83 lb/d | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | report only (mg/L) (alert, not enforceable) | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | ≤ .6 lb/d (alert, not enforceable) | all year |
| Flow, in conduit or thru treatment plant | monthly average | ≤ 9 MGD | all year |
| Chlorine, total residual | monthly average | ≤ 100 ug/L | all year |
| Chlorine, total residual | daily maximum | ≤ 30 ug/L | all year |
| Chlorine, total residual | daily maximum | ≤ 100 ug/L | all year |
| Toxicity [acute], Ceriodaphnia dubia | maximum | ≤ 1 tox acute (alert, not enforceable) | Jun–Oct |
| Toxicity [acute], Ceriodaphnia dubia | maximum | ≤ 1.5 tox acute (alert, not enforceable) | Jan, Feb, Mar, Apr, May, Nov, Dec |
| Toxicity [chronic], Ceriodaphnia dubia | maximum | ≤ 3.5 tox chronic (alert, not enforceable) | Jun–Oct |
| Toxicity [chronic], Ceriodaphnia dubia | daily maximum | ≤ 6.2 tox chronic (alert, not enforceable) | Jan, Feb, Mar, Apr, May, Nov, Dec |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1.5 tox acute (alert, not enforceable) | Jan, Feb, Mar, Apr, May, Nov, Dec |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | maximum | ≤ 1 tox acute (alert, not enforceable) | Jun–Oct |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | maximum | ≤ 3.5 tox chronic (alert, not enforceable) | Jun–Oct |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | daily maximum | ≤ 6.2 tox chronic (alert, not enforceable) | Jan, Feb, Mar, Apr, May, Nov, Dec |
| Mercury, total [as Hg] | daily maximum | ≤ 50 ng/L | all year |
| Mercury, total [as Hg] | rolling average | ≤ 12 ng/L | all year |
| Phenols, chlorinated | daily maximum | report only (ug/L) | all year |
| Coliform, fecal general | 30-day geometric mean | ≤ 200 #/100mL | May–Oct |
| Coliform, fecal general | 7-day geometric mean | ≤ 400 #/100mL | May–Oct |
| Phenolic compounds, unchlorinated | daily maximum | report only (ug/L) | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | Jan, Feb, Mar, Apr, May, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | Jun–Oct |
| BOD, carbonaceous [5 day, 20 C] | 7-day average | ≤ 40 mg/L | Jan, Feb, Mar, Apr, May, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | 7-day average | ≤ 30 mg/L | Jun–Oct |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 1900 lb/d | Jan, Feb, Mar, Apr, May, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 1900 lb/d | Jun–Oct |
| BOD, carbonaceous [5 day, 20 C] | 7-day average | ≤ 3000 lb/d | Jan, Feb, Mar, Apr, May, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | 7-day average | ≤ 2300 lb/d | Jun–Oct |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year |
| BOD, carbonaceous [5 day, 20 C] | 7-day average | report only (mg/L) | all year |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year |
| Carbonaceous oxygen demand, % removal | monthly average minimum | ≥ 85 % | all year |
Cited limits by parameter: New York's rules and the federal ones.
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