NPDES NY0109720 · Clean Water Act
MARLBORO WWTP, Marlboro, NY: NPDES NY0109720 discharge permit, effluent exceedances, inspections, penalties
MARLBORO WWTP, Marlboro, New York: Individual permit NY0109720, held by MARLBOROUGH (T); Publicly owned treatment works; Effective; issued November 6, 2017, term to May 31, 2023, by NYSDEC; discharges to LATTINTOWN CK.
1 of the 11 pollutants listed for NPDES NY0109720 have no violation or effluent exceedance.
- Flow, in conduit or thru treatment plant: 1 limit, 13 violations of any kind, 12 effluent exceedances, latest March 31, 2026, largest 466% over the limit.
- Solids, total suspended: 6 limits, 14 violations of any kind, 7 effluent exceedances, latest November 30, 2019, largest 229% over the limit.
- Solids, suspended percent removal: 1 limit, 4 violations of any kind, 4 effluent exceedances, latest November 30, 2019, largest 293% over the limit.
- Solids, settleable: 2 limits, 3 violations of any kind, 3 effluent exceedances, latest October 31, 2010, largest 400% over the limit.
- Chlorine, total residual: 1 limit, 27 violations of any kind, 1 effluent exceedance, latest May 31, 2018, largest 100% over the limit.
- BOD, 5-day, 20 deg. C: 6 limits, 8 violations of any kind, 1 effluent exceedance, latest February 28, 1999, largest 7% over the limit.
- pH: 4 limits, 1 violation of any kind, 1 effluent exceedance, latest February 28, 1999.
- BOD, 5-day, percent removal: 1 limit, 1 violation of any kind, 1 effluent exceedance, latest March 31, 2005, largest 113% over the limit.
- Coliform, fecal general: 2 limits, 26 violations of any kind.
- Oxygen, dissolved [DO]: 1 limit, 3 violations of any kind.
- Temperature, water deg. centigrade: 2 limits.
- May 27, 2026: Evaluation (S).
New York holds 468 Publicly owned treatment works coverages of this permit type in EPA’s file; 240 were issued before NY0109720. MARLBOROUGH (T) holds 2 permits in New York.
Other permits held by MARLBOROUGH (T)
- MILTON WWTF, Milton: NY0259829, issued 2019-07-15
Coverages issued nearest NY0109720
- 2017-08-16: CONSTABLEVILLE (V) WWTP, Constableville: NY0110418, held by CONSTABLEVILLE (V)
- 2017-08-25: CORFU (V) STP, Corfu: NY0108430, held by CORFU (V)
- 2017-09-01: CAESARS LANE WWTF, New Windsor: NY0022446, held by NEW WINDSOR (T)
- 2017-09-26: WALDEN (V) STP, Walden: NY0030490, held by WALDEN (V)
- 2017-10-13: CATHARINE VALLEY WATER RECLAMATION FACILITY, Watkins Glen: NY0271942, held by WATKINS GLEN (V)
- 2017-12-05: PORT BYRON (V) WWTP, Port Byron: NY0020338, held by PORT BYRON (V)
- 2017-12-05: COEYMANS-RAVENA WPCF, Ravena: NY0022772, held by COEYMANS (T)
- 2017-12-05: CAYUGA AND AURELIUS JOINT WWTP, Aurelius, Town Of: NY0262102, held by VILLAGE OF CAYUGA
- 2017-12-26: CHENANGO NORTHGATE WWTP, Binghamton: NY0213781, held by CHENANGO (T)
- 2017-12-26: CHENANGO (T) SD#10, Binghamton: NY0233200, held by CHENANGO (T)
MARLBORO WWTP among its neighbors
8 discharge permits are in the Lattintown Creek subwatershed (HUC 020200080501); NY0109720 is one. Its county: 125, 5 major; NY0109720 is minor permit.
Other permits in the Lattintown Creek subwatershed (HUC 020200080501)
- DELAWARE AQUEDUCT, SHAFT 5B, RONDOUT-WEST BRANCH TUNNEL REPAIR, Newburgh, Town Of: NY0280402, minor, term to 2023-02-28
- LAKESHORE DAIRY HEIFER BARN, Wilson: NYR11Q179, minor, term to 2030-01-28
- MALMARK CONSTRUCTION CORP. SUBDIVISION, Newburgh: NYR11L267, minor, term to 2030-01-28
- OVERLOOK FARMS, Newburgh: NY0281824, minor, term to 2029-07-31
- RWB BYPASS TUNNEL SHAFT 5B SITE, Marlboro: NYR10W175, minor, term to 2030-01-28
- SHAFT 5B AND WEST CONNECTION SUPPORT SITE, Marlboro: NYR11A039, minor, term to 2030-01-28
- SOLAR LIBERTY PORTLAND 2, Portland: NYR11Q423, minor, term to 2030-01-28
Identity
| Facility | MARLBORO WWTP |
|---|---|
| Permittee | MARLBOROUGH (T) |
| NPDES ID | NY0109720 |
| Status | Effective |
| Type | Individual permit |
| Class | Minor |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | November 6, 2017 |
| Expires | May 31, 2023 |
| Agency | NYSDEC |
| Address | Marlboro, NY 12547 |
| Receiving water | LATTINTOWN CK |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Lattintown Creek (HUC 020200080501) |
| SIC | 4952 – Sewerage Systems |
NPDES NY0109720: effluent limits and exceedances
MARLBORO WWTP (NPDES NY0109720): 11 pollutants on file, 11 limited; 10 with a violation of any kind, 8 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, 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 |
NPDES NY0109720: inspections, violations and enforcement
NPDES NY0109720: 1 inspection
| Date | What EPA recorded | Agency |
|---|---|---|
| May 27, 2026 | Evaluation | S |
NPDES NY0109720 (MARLBORO WWTP): no single-event violation, formal enforcement action and informal enforcement action on file.
Watch NPDES NY0109720
NPDES NY0109720: one email when its EPA record changes — $99/month.
Permits near NPDES NY0109720
NPDES NY0109720: 11 pollutant rows, 1 dated events; ICIS-NPDES download, loaded October 14, 2026.