Non-Compliance
Clean Water Act
SCSD YAPHANK CO CENTER STP
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $0 in total penalties since records began.
- Address
-
YAPHANK AVENUE
YAPHANK, NY 11980
View on map ↗ - County
- SUFFOLK County
- Inspections
- 21 · last Sep 12, 2025
- Total Penalties
- $0
- Registry ID
- 110009827731
Compliance Status (Last 12 Quarters)
Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.
2
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
Compliance Violations
Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.
| Program | Type | Violation Date | Return to Compliance | Status |
|---|---|---|---|---|
| cwa | Schedule Event unachieved but reported | Sep 1, 2019 | Dec 12, 2019 | Resolved |
| cwa | Schedule Event unachieved and not reported | Sep 1, 2019 | Dec 12, 2019 | Resolved |
| cwa | Schedule Event reported late | Sep 1, 2019 | — | Open |
| cwa | Schedule Event achieved late but reported | Sep 1, 2019 | — | Open |
| cwa | Schedule Event achieved late but reported | Mar 28, 2017 | — | Open |
| cwa | Schedule Event achieved late but reported | Mar 28, 2016 | — | Open |
| cwa | Schedule Event achieved late but reported | Mar 28, 2014 | — | Open |
| cwa | Schedule Event achieved late but reported | Mar 28, 2013 | — | Open |
| cwa | Schedule Event achieved late but reported | Mar 28, 2012 | — | Open |
| cwa | Schedule Event achieved late but reported | Mar 28, 2010 | — | Open |
| cwa | Schedule Event achieved late but reported | Mar 28, 2009 | — | Open |
| cwa | Schedule Event unachieved and not reported | Apr 28, 2001 | May 31, 2001 | Resolved |
| cwa | Schedule Event achieved late but reported | Apr 28, 2001 | — | Open |
Discharge Limit Exceedances
Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.
| Pollutant | Violation | Reported | Limit | Exceedance | Period | Status |
|---|---|---|---|---|---|---|
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 66.70 mg/L | 10.00 | +567% | Feb 2024 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 10.30 mg/L | 10.00 | +3% | May 2023 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 11.10 mg/L | 10.00 | +11% | Jun 2021 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 26.40 mg/L | 10.00 | +164% | Apr 2021 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 12.70 mg/L | 10.00 | +27% | Aug 2020 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 13.30 mg/L | 10.00 | +33% | Feb 2018 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 38.80 mg/L | 10.00 | +288% | Jan 2018 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 14.10 mg/L | 10.00 | +41% | Jan 2017 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 11.20 mg/L | 10.00 | +12% | Nov 2016 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 16.40 mg/L | 10.00 | +64% | Oct 2016 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 10.20 mg/L | 10.00 | +2% | Jun 2015 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 11.30 mg/L | 10.00 | +13% | May 2015 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 10.60 mg/L | 10.00 | +6% | Apr 2015 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 11.50 mg/L | 10.00 | +15% | Feb 2015 | Resolved |
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