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Botanical And Zoological Gardens, Riverhead, New York. NPDES permit NY0226459, in force until Mar 31, 2030. Last 12 months: over a limit 13 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| October 2025 | 01H | Flow rate, monthly average | 4001 gal/d | ≤ 1400 gal/d | 186% |
| November 2025 | 001 | Solids, total suspended, monthly average | 21.6 mg/L | ≤ 20 mg/L | 8% |
| November 2025 | 004 | Nitrogen, total [as N], daily maximum | 16.5 mg/L | ≤ 10 mg/L | 65% |
| November 2025 | 01H | Flow rate, monthly average | 4375 gal/d | ≤ 1400 gal/d | 213% |
| December 2025 | 01H | Flow rate, monthly average | 3406 gal/d | ≤ 1400 gal/d | 143% |
| February 2026 | 01H | Flow rate, monthly average | 2216 gal/d | ≤ 1400 gal/d | 58% |
| March 2026 | 01G | Flow rate, monthly average | 3780 gal/d | ≤ 3300 gal/d | 15% |
| April 2026 | 01G | Flow rate, monthly average | 4083 gal/d | ≤ 3300 gal/d | 24% |
| May 2026 | 01G | Flow rate, monthly average | 4697 gal/d | ≤ 3300 gal/d | 42% |
| June 2026 | 001 | Solids, total suspended, monthly average | 22.6 mg/L | ≤ 20 mg/L | 13% |
| June 2026 | 01G | Flow rate, monthly average | 4728 gal/d | ≤ 3300 gal/d | 43% |
| July 2026 | 001 | Solids, total suspended, monthly average | 21.6 mg/L | ≤ 20 mg/L | 8% |
| August 2026 | 001 | Solids, total suspended, monthly average | 23 mg/L | ≤ 20 mg/L | 15% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | daily maximum | ≤ 90 deg F | all year | 001 |
| Flow rate | monthly average | report only (gal/d) | all year | 001 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 3 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | 001 |
| Nitrogen, total [as N] | monthly average | ≤ 4 lb/d | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ 80 ug/L | all year | 001 |
| Coliform, fecal general | 30-day geometric mean | ≤ 200 #/100mL | all year | 001 |
| Coliform, fecal general | 7-day geometric mean | ≤ 400 #/100mL | all year | 001 |
| Coliform, total general | monthly median | ≤ 700 #/100mL | all year | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 90 deg F | all year | 003 |
| Flow rate | monthly average | ≤ 250 gal/d | all year | 003 |
| pH | daily minimum | ≥ 6.5 SU | all year | 003 |
| pH | daily maximum | ≤ 8.5 SU | all year | 003 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 003 |
| Nitrogen, total [as N] | daily maximum | ≤ 10 mg/L | all year | 003 |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | all year | 003 |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | all year | 003 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 003 |
| Chlorine, total residual | daily maximum | ≤ 2 mg/L | all year | 003 |
| Solids, total dissolved | daily maximum | ≤ 1000 mg/L | all year | 003 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 90 deg F | all year | 004 |
| Flow rate | monthly average | ≤ 1000 gal/d | all year | 004 |
| pH | daily minimum | ≥ 6.5 SU | all year | 004 |
| pH | daily maximum | ≤ 8.5 SU | all year | 004 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 004 |
| Nitrogen, total [as N] | daily maximum | ≤ 10 mg/L | all year | 004 |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | all year | 004 |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | all year | 004 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 004 |
| Solids, total dissolved | daily maximum | ≤ 1000 mg/L | all year | 004 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 90 deg F | all year | 005 |
| Flow rate | monthly average | ≤ 600 gal/d | all year | 005 |
| pH | daily minimum | ≥ 6.5 SU | all year | 005 |
| pH | daily maximum | ≤ 8.5 SU | all year | 005 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 005 |
| Nitrogen, total [as N] | daily maximum | ≤ 10 mg/L | all year | 005 |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | all year | 005 |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | all year | 005 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 005 |
| Chlorine, total residual | daily maximum | ≤ 2 mg/L | all year | 005 |
| Solids, total dissolved | daily maximum | ≤ 1000 mg/L | all year | 005 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 90 deg F | all year | 006 |
| Flow rate | monthly average | ≤ 600 gal/d | all year | 006 |
| pH | daily minimum | ≥ 6.5 SU | all year | 006 |
| pH | daily maximum | ≤ 8.5 SU | all year | 006 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 006 |
| Nitrogen, total [as N] | daily maximum | ≤ 10 mg/L | all year | 006 |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | all year | 006 |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | all year | 006 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 006 |
| Chlorine, total residual | daily maximum | ≤ 2 mg/L | all year | 006 |
| Solids, total dissolved | daily maximum | ≤ 1000 mg/L | all year | 006 |
| Flow rate | monthly average | ≤ 2000 gal/d | all year | 01A |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 01A |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | all year | 01A |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | all year | 01A |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 01A |
| Flow rate | monthly average | ≤ 2000 gal/d | all year | 01B |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 01B |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | all year | 01B |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | all year | 01B |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 01B |
| Flow rate | monthly average | ≤ 2400 gal/d | all year | 01C |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 01C |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | all year | 01C |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | all year | 01C |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 01C |
| Flow rate | monthly average | ≤ 2400 gal/d | all year | 01D |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 01D |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | all year | 01D |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | all year | 01D |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 01D |
| Flow rate | monthly average | ≤ 4000 gal/d | all year | 01E |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 01E |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | all year | 01E |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | all year | 01E |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 01E |
| Flow rate | monthly average | ≤ 1600 gal/d | all year | 01F |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 01F |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | all year | 01F |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | all year | 01F |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 01F |
| Flow rate | monthly average | ≤ 3300 gal/d | all year | 01G |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 01G |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | all year | 01G |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | all year | 01G |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 01G |
| Flow rate | monthly average | ≤ 1400 gal/d | all year | 01H |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 01H |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | all year | 01H |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | all year | 01H |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 01H |
Cited limits by parameter: New York's rules and the federal ones.
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