Clean Water Act discharge permit · NPDES NY0109720
MARLBORO WWTP, Marlboro, NY: NPDES NY0109720 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
MARLBORO WWTP, held by MARLBOROUGH (T), holds NPDES permit NY0109720, which discharges to Lattintown Ck. EPA’s file records it issued November 6, 2017 and expiring May 31, 2023. 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 | MARLBORO WWTP |
|---|---|
| Permittee as filed | MARLBOROUGH (T) |
| NPDES ID | NY0109720 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | November 6, 2017 |
| Expiration date | May 31, 2023 |
| Issuing agency | NYSDEC |
| Address | Marlboro, NY 12547 |
| Receiving water | LATTINTOWN CK |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Lattintown Creek (HUC 020200080501) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 11Pollutants on file
- 11Under a numeric limit
- 10With a violation of any kind
- 8With 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 | 1 | 13 | 12 | March 31, 2026 | 466% over the limit |
| Solids, total suspended | 6 | 14 | 7 | November 30, 2019 | 229% over the limit |
| Solids, suspended percent removal | 1 | 4 | 4 | November 30, 2019 | 293% over the limit |
| Solids, settleable | 2 | 3 | 3 | October 31, 2010 | 400% over the limit |
| Chlorine, total residual | 1 | 27 | 1 | May 31, 2018 | 100% over the limit |
| BOD, 5-day, 20 deg. C | 6 | 8 | 1 | February 28, 1999 | 7% over the limit |
| pH | 4 | 1 | 1 | February 28, 1999 | |
| BOD, 5-day, percent removal | 1 | 1 | 1 | March 31, 2005 | 113% over the limit |
| Coliform, fecal general | 2 | 26 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 3 | 0 | ||
| Temperature, water deg. centigrade | 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 NY0109720.
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 NY0109720 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.