Clean Water Act discharge permit · NPDES MAG640046
CENTENNIAL W T P, Pelham, MA: NPDES MAG640046 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 4Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
CENTENNIAL W T P holds NPDES permit MAG640046, which discharges to Amethyst_brook. EPA’s file records it issued May 1, 2013 and expiring September 30, 2014. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | CENTENNIAL W T P |
|---|---|
| Permittee as filed | CENTENNIAL W T P |
| NPDES ID | MAG640046 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | May 1, 2013 |
| Expiration date | September 30, 2014 |
| Address | Pelham, MA 01002 |
| Receiving water | AMETHYST_BROOK |
| Subwatershed | Fort River (HUC 010802010605) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 11Pollutants on file
- 4Under a numeric limit
- 11With a violation of any kind
- 2With 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 |
|---|---|---|---|---|---|
| pH | 4 | 161 | 77 | May 31, 2017 | |
| Solids, total suspended | 4 | 85 | 1 | November 30, 2008 | 4% over the limit |
| Chlorine, total residual | 4 | 86 | 0 | ||
| Flow, in conduit or thru treatment plant | 8 | 45 | 0 | ||
| Aluminum, total recoverable | 0 | 42 | 0 | ||
| Copper, total recoverable | 0 | 4 | 0 | ||
| Specific Conductance | 0 | 4 | 0 | ||
| LC50 Static 48Hr Acute Ceriodaphnia dubia | 0 | 3 | 0 | ||
| Lead, total recoverable | 0 | 2 | 0 | ||
| Solids, total dissolved | 0 | 2 | 0 | ||
| NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia | 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 MAG640046.
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 MAG640046 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.