Clean Water Act discharge permit · NPDES NY0225665
ROCKVILLE CENTRE POWER PLANT, Rockville Centre, NY: NPDES NY0225665 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
ROCKVILLE CENTRE POWER PLANT, held by ROCKVILLE CENTRE (V), holds NPDES permit NY0225665, which discharges to Mill Ck. EPA’s file records it issued May 11, 2016 and expiring December 31, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | ROCKVILLE CENTRE POWER PLANT |
|---|---|
| Permittee as filed | ROCKVILLE CENTRE (V) |
| NPDES ID | NY0225665 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | May 11, 2016 |
| Expiration date | December 31, 2021 |
| Issuing agency | NYSDEC |
| Address | Rockville Centre, NY 11571 |
| Receiving water | MILL CK |
| Subwatershed | Mill River (HUC 020302020204) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 14Pollutants on file
- 12Under a numeric limit
- 10With a violation of any kind
- 3With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Flow rate | 2 | 68 | 49 | May 31, 2021 | 6,045% over the limit |
| pH | 6 | 56 | 23 | October 31, 2010 | |
| Oil & Grease | 2 | 29 | 14 | June 30, 2003 | 333% over the limit |
| Toluene | 2 | 13 | 0 | ||
| Benzene | 2 | 13 | 0 | ||
| Ethylbenzene | 2 | 13 | 0 | ||
| Xylene [mix of m+o+p] | 2 | 13 | 0 | ||
| Chlorine, total residual | 0 | 10 | 0 | ||
| Methyl tert-butyl ether [MTBE] | 0 | 7 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 4 | 0 | ||
| Chrysene | 2 | 0 | 0 | ||
| Fluorene | 2 | 0 | 0 | ||
| Pyrene | 2 | 0 | 0 | ||
| Naphthalene | 2 | 0 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES NY0225665.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID NY0225665 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.