Clean Water Act discharge permit · NPDES MAG580036
M C I NORFOLK-WALPOLE WPCF, Norfolk, MA: NPDES MAG580036 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 32Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
M C I NORFOLK-WALPOLE WPCF, held by MCI-NORFOLK W P C F, holds NPDES permit MAG580036, which discharges to Stop River. EPA’s file records it issued December 1, 2021 and expiring November 30, 2026. 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 | M C I NORFOLK-WALPOLE WPCF |
|---|---|
| Permittee as filed | MCI-NORFOLK W P C F |
| NPDES ID | MAG580036 |
| 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 | December 1, 2021 |
| Expiration date | November 30, 2026 |
| Address | Norfolk, MA 02056 |
| Receiving water | STOP RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Headwaters Neponset River (HUC 010900010801) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 32Pollutants on file
- 32Under a numeric limit
- 4With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 14 | 2 | 2 | August 31, 2024 | 65% over the limit |
| Phosphorus, total [as P] | 4 | 2 | 2 | May 31, 2026 | 30% over the limit |
| Copper, total [as Cu] | 4 | 2 | 2 | November 30, 2025 | 39% over the limit |
| Aluminum, total [as Al] | 3 | 1 | 1 | November 30, 2025 | 458% over the limit |
| BOD, 5-day, 20 deg. C | 11 | 0 | 0 | ||
| Solids, total suspended | 11 | 0 | 0 | ||
| Nitrogen, total [as N] | 4 | 0 | 0 | ||
| pH | 3 | 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 | ||
| Nitrogen, Kjeldahl, total [as N] | 2 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 2 | 0 | 0 | ||
| Carbon, tot organic [TOC] | 2 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 0 | 0 | ||
| Cadmium, total [as Cd] | 2 | 0 | 0 | ||
| Lead, total [as Pb] | 2 | 0 | 0 | ||
| Nickel, total [as Ni] | 2 | 0 | 0 | ||
| Zinc, total [as Zn] | 2 | 0 | 0 | ||
| Chlorine, total residual | 2 | 0 | 0 | ||
| E. coli | 2 | 0 | 0 | ||
| Temperature, water deg. centigrade | 1 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 0 | 0 | ||
| Carbon, dissolved organic [as C] | 1 | 0 | 0 | ||
| BOD, 5-day, percent removal | 1 | 0 | 0 | ||
| Solids, suspended percent removal | 1 | 0 | 0 | ||
| LC50 Static 48Hr Acute Ceriodaphnia dubia | 1 | 0 | 0 | ||
| NOEL Static 7Day Chronic Ceriodaphnia dubia | 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 MAG580036.
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, MAG580036.
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 MAG580036 there.
Nearby on the register
- Discharge permits in Norfolk
- Every permit record in Norfolk, A to Z
- Discharge permits in Massachusetts
- Every permit record in Massachusetts, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.