Clean Water Act discharge permit · NPDES MA0101745
AMESBURY W W T P, Amesbury, MA: NPDES MA0101745 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 10Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
AMESBURY W W T P holds NPDES permit MA0101745, which discharges to Merrimack River. EPA’s file records it issued February 6, 2004 and expiring March 31, 2009. 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 | AMESBURY W W T P |
|---|---|
| Permittee as filed | AMESBURY W W T P |
| NPDES ID | MA0101745 |
| 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 | February 6, 2004 |
| Expiration date | March 31, 2009 |
| Address | Amesbury, MA 01913 |
| Receiving water | MERRIMACK RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | East Meadow River-Merrimack River (HUC 010700061404) |
| Program components on file | Biosolids, POTW, Pretreatment |
| SIC | 4952 – Sewerage Systems |
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
- 12Pollutants on file
- 10Under a numeric limit
- 9With 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 | 4 | 38 | 38 | May 31, 2007 | 74% over the limit |
| Solids, total suspended | 11 | 34 | 34 | March 31, 2010 | 164% over the limit |
| Solids, settleable | 0 | 19 | 19 | February 29, 2004 | 8,900% over the limit |
| BOD, 5-day, 20 deg. C | 11 | 8 | 8 | March 31, 2010 | 227% over the limit |
| Coliform, fecal general | 5 | 4 | 4 | March 31, 2001 | 90% over the limit |
| Solids, suspended percent removal | 1 | 4 | 4 | March 31, 2005 | 60% over the limit |
| Chlorine, total residual | 2 | 1 | 1 | February 28, 2003 | 567% over the limit |
| Flow, total | 0 | 1 | 1 | March 31, 2011 | 33% over the limit |
| LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | 1 | 3 | 0 | ||
| pH | 2 | 0 | 0 | ||
| BOD, 5-day, percent removal | 1 | 0 | 0 | ||
| LC50 Static 48Hr Acute Menidia | 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 MA0101745.
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, MA0101745.
Start the watch
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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 MA0101745 there.
Nearby on the register
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- Every permit record in Amesbury, A to Z
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- Every permit record in Massachusetts, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.