Clean Water Act discharge permit · NPDES MA0101290
HATFIELD W W T F, Hatfield, MA: NPDES MA0101290 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 9Pollutants with an effluent exceedance
HATFIELD W W T F, held by HATFIELD W W T P, holds NPDES permit MA0101290, which discharges to Connecticut River. EPA’s file records it issued April 27, 2006 and expiring June 26, 2011. 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 | HATFIELD W W T F |
|---|---|
| Permittee as filed | HATFIELD W W T P |
| NPDES ID | MA0101290 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | April 27, 2006 |
| Expiration date | June 26, 2011 |
| Address | Hatfield, MA 01038 |
| Receiving water | CONNECTICUT RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Dry Brook-Connecticut River (HUC 010802010610) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 17Pollutants on file
- 11Under a numeric limit
- 17With a violation of any kind
- 9With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 7 | 47 | 27 | February 28, 2015 | 251% over the limit |
| Chlorine, total residual | 2 | 30 | 27 | October 31, 2014 | 14,500% over the limit |
| BOD, 5-day, percent removal | 1 | 27 | 26 | July 31, 2015 | 360% over the limit |
| BOD, 5-day, 20 deg. C | 7 | 39 | 21 | April 30, 2014 | 127% over the limit |
| Solids, suspended percent removal | 1 | 22 | 20 | February 28, 2015 | 207% over the limit |
| E. coli, colony forming units [CFU] | 0 | 17 | 15 | July 31, 2021 | 218% over the limit |
| pH | 2 | 11 | 9 | August 31, 2014 | |
| Coliform, fecal general | 2 | 6 | 5 | July 31, 2011 | 99,999% over the limit |
| Flow, in conduit or thru treatment plant | 3 | 11 | 1 | March 31, 1999 | 48,900% over the limit |
| Nitrogen, Kjeldahl, total [as N] | 1 | 13 | 0 | ||
| Nitrogen, total [as N] | 0 | 8 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 8 | 0 | ||
| Nitrogen, nitrite total [as N] | 0 | 8 | 0 | ||
| Nitrogen, nitrate total [as N] | 0 | 8 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 5 | 0 | ||
| LC50 Static 48Hr Acute Ceriodaphnia dubia | 1 | 2 | 0 | ||
| Aluminum, total [as Al] | 0 | 2 | 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 MA0101290.
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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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 MA0101290 there.
Nearby on the register
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- Every permit record in Hatfield, A to Z
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- Every permit record in Massachusetts, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.