Clean Water Act discharge permit · NPDES NY0027901
OCSD #1 HARRIMAN STP, Harriman, NY: NPDES NY0027901 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 24Pollutants under a numeric limit
- 18Pollutants with an effluent exceedance
OCSD #1 HARRIMAN STP, held by ORANGE CO DEPT OF EF AND S, holds NPDES permit NY0027901, which discharges to Ramapo R. EPA’s file records it issued March 5, 2008 and expiring May 31, 2013. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | OCSD #1 HARRIMAN STP |
|---|---|
| Permittee as filed | ORANGE CO DEPT OF EF AND S |
| NPDES ID | NY0027901 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | March 5, 2008 |
| Expiration date | May 31, 2013 |
| Issuing agency | NYSDEC |
| Address | Harriman, NY 10926 |
| Receiving water | RAMAPO R |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Upper Ramapo River (HUC 020301030201) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 31Pollutants on file
- 24Under a numeric limit
- 22With a violation of any kind
- 18With 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, in conduit or thru treatment plant | 3 | 211 | 187 | July 31, 2026 | 232% over the limit |
| Chlorine, total residual | 2 | 151 | 111 | December 31, 2007 | 1,300% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 17 | 138 | 91 | July 31, 2026 | 725% over the limit |
| Oxygen demand, ultimate | 5 | 98 | 80 | April 30, 2026 | 99,999% over the limit |
| Solids, settleable | 2 | 83 | 52 | November 30, 2018 | 29,900% over the limit |
| Solids, total suspended | 22 | 93 | 43 | June 30, 2025 | 481% over the limit |
| Nitrogen, ammonia, total [as NH3] | 4 | 60 | 43 | February 28, 2017 | 380% over the limit |
| Ammonia & ammonium- total | 0 | 36 | 29 | March 31, 1993 | 3,200% over the limit |
| Nitrogen, ammonia total [as N] | 0 | 23 | 23 | July 31, 2026 | 220% over the limit |
| Coliform, fecal general | 4 | 54 | 22 | July 31, 2026 | 99,999% over the limit |
| Oxygen, dissolved [DO] | 2 | 34 | 18 | September 30, 2011 | 54% over the limit |
| Copper, total [as Cu] | 5 | 16 | 16 | March 31, 2026 | 220% over the limit |
| Temperature, water deg. fahrenheit | 2 | 12 | 12 | August 31, 2014 | 7% over the limit |
| Solids, suspended percent removal | 2 | 24 | 8 | March 31, 2008 | 33% over the limit |
| Solids, total dissolved | 0 | 8 | 8 | March 31, 2026 | 70% over the limit |
| pH | 4 | 70 | 6 | March 31, 2008 | |
| Carbonaceous oxygen demand, % removal | 2 | 22 | 6 | January 31, 2007 | 327% over the limit |
| Chloride [as Cl] | 0 | 5 | 5 | February 28, 2026 | 14% over the limit |
| Temperature, water deg. centigrade | 0 | 32 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 4 | 11 | 0 | ||
| Zinc, total recoverable | 0 | 2 | 0 | ||
| Copper, total recoverable | 0 | 2 | 0 | ||
| Zinc, total [as Zn] | 5 | 0 | 0 | ||
| Phosphorus, total [as P] | 4 | 0 | 0 | ||
| Phenolics, total recoverable | 2 | 0 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 0 | 0 | ||
| Annual amt of sludge incinerated | 1 | 0 | 0 | ||
| Annual sludge production, total | 1 | 0 | 0 | ||
| Annual amount of sludge land applied | 1 | 0 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 0 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 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
- 8Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| March 18, 2025 | Management Practice Violations - Failure to Maintain Records | ST6 |
| March 18, 2025 | Management Practice Violations - No Licensed/Certified Operator | ST6 |
| July 9, 2023 | Effluent Violations - Unauthorized Discharge | ST6 |
| September 21, 2022 | Pretreatment - Failure to Enforce Against I/U | EP6 |
| September 21, 2022 | Pretreatment - Failure to Issue SIU Permits | EP6 |
| September 21, 2022 | Pretreatment - Failure to Conduct Inspections | EP6 |
| September 21, 2022 | Pretreatment - Failure to Meet Inspection and Sampling Plan for SIUs | EP6 |
| April 24, 2017 | WW SSO - Improper Operation and Maintenance | EP6 |
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.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.