Clean Water Act discharge permit · NPDES MA0100005
ATHOL W W T P, Athol, MA: NPDES MA0100005 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 20Pollutants under a numeric limit
- 13Pollutants with an effluent exceedance
ATHOL W W T P holds NPDES permit MA0100005, which discharges to Millers River. EPA’s file records it issued June 24, 2008 and expiring July 31, 2013. 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 | ATHOL W W T P |
|---|---|
| Permittee as filed | ATHOL W W T P |
| NPDES ID | MA0100005 |
| 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 | June 24, 2008 |
| Expiration date | July 31, 2013 |
| Address | Athol, MA 01331 |
| Receiving water | MILLERS RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Beaver Brook-Millers River (HUC 010802020204) |
| Program components on file | 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
- 22Pollutants on file
- 20Under a numeric limit
- 14With a violation of any kind
- 13With 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 | 3 | 14 | 13 | January 31, 2009 | 70% over the limit |
| pH | 2 | 9 | 8 | October 31, 2002 | |
| Coliform, fecal general | 2 | 7 | 7 | September 30, 2007 | 6,800% over the limit |
| Chlorine, total residual | 2 | 5 | 5 | April 30, 2002 | 26,216% over the limit |
| Solids, suspended percent removal | 1 | 4 | 4 | February 29, 2008 | 37% over the limit |
| NOEL Static 7Day Chronic Ceriodaphnia dubia | 1 | 4 | 4 | April 30, 2018 | 99,999% over the limit |
| Oxygen, dissolved [DO] | 1 | 4 | 3 | October 31, 2002 | 10% over the limit |
| BOD, 5-day, percent removal | 1 | 3 | 3 | April 30, 2004 | 117% over the limit |
| Solids, total suspended | 7 | 2 | 2 | February 28, 2003 | 102% over the limit |
| Copper, total [as Cu] | 2 | 2 | 2 | February 29, 2008 | 43% over the limit |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | 1 | 2 | 2 | October 31, 2014 | 99,999% over the limit |
| Lead, total [as Pb] | 0 | 1 | 1 | November 30, 2007 | 250% over the limit |
| LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | 0 | 1 | 1 | September 30, 1999 | 20% over the limit |
| BOD, 5-day, 20 deg. C | 7 | 5 | 0 | ||
| Phosphorus, total [as P] | 6 | 0 | 0 | ||
| E. coli, thermotol, MF, MTEC | 4 | 0 | 0 | ||
| Nitrogen, total [as N] | 3 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 3 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 3 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 3 | 0 | 0 | ||
| Phosphate, ortho, dissolved [as P] | 2 | 0 | 0 | ||
| Silver, total [as Ag] | 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 MA0100005.
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 MA0100005 there.
Nearby on the register
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- Every permit record in Athol, 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.