Clean Water Act discharge permit · NPDES MAG580028
WEST STOCKBRIDGE W W T F, West Stockbridge, MA: NPDES MAG580028 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 30Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
WEST STOCKBRIDGE W W T F holds NPDES permit MAG580028, which discharges to Williams River. EPA’s file records it issued September 28, 2021 and expiring November 30, 2026. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | WEST STOCKBRIDGE W W T F |
|---|---|
| Permittee as filed | WEST STOCKBRIDGE W W T F |
| NPDES ID | MAG580028 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | September 28, 2021 |
| Expiration date | November 30, 2026 |
| Address | West Stockbridge, MA 02156 |
| Receiving water | WILLIAMS RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Williams River (HUC 011000050201) |
| Program components on file | POTW, Pretreatment |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 30Pollutants on file
- 30Under a numeric limit
- 17With a violation of any kind
- 1With 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 |
|---|---|---|---|---|---|
| Phosphorus, total [as P] | 4 | 23 | 23 | August 31, 2024 | 360% over the limit |
| Nitrogen, ammonia total [as N] | 10 | 6 | 0 | ||
| Carbon, tot organic [TOC] | 2 | 6 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 6 | 0 | ||
| Cadmium, total [as Cd] | 2 | 6 | 0 | ||
| Copper, total [as Cu] | 2 | 6 | 0 | ||
| Lead, total [as Pb] | 2 | 6 | 0 | ||
| Nickel, total [as Ni] | 2 | 6 | 0 | ||
| Zinc, total [as Zn] | 2 | 6 | 0 | ||
| Aluminum, total [as Al] | 2 | 6 | 0 | ||
| pH | 3 | 3 | 0 | ||
| Temperature, water deg. centigrade | 1 | 3 | 0 | ||
| Carbon, dissolved organic [as C] | 1 | 3 | 0 | ||
| LC50 Static 48Hr Acute Ceriodaphnia dubia | 1 | 3 | 0 | ||
| Nitrogen, total [as N] | 2 | 2 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 1 | 1 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 1 | 0 | ||
| BOD, 5-day, 20 deg. C | 7 | 0 | 0 | ||
| Solids, total suspended | 7 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 3 | 0 | 0 | ||
| Perfluorooctanoic acid (PFOA) | 3 | 0 | 0 | ||
| Perfluoroheptanoic acid (PFHpA) | 3 | 0 | 0 | ||
| Perfluorononanoic acid (PFNA) | 3 | 0 | 0 | ||
| Perfluorodecanoic acid (PFDA) | 3 | 0 | 0 | ||
| Perfluorohexanesulfonic acid (PFHxS) | 3 | 0 | 0 | ||
| Perfluorooctanesulfonic acid (PFOS) | 3 | 0 | 0 | ||
| E. coli | 2 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 0 | 0 | ||
| BOD, 5-day, percent removal | 1 | 0 | 0 | ||
| Solids, suspended percent removal | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES MAG580028.
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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MAG580028.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 MAG580028 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.