Clean Water Act discharge permit · NPDES MAG590038
ROCKLAND WASTEWATER TREATMENT FACILITY, Rockland, MA: NPDES MAG590038 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 68Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
ROCKLAND WASTEWATER TREATMENT FACILITY, held by ROCKLAND W W T P, holds NPDES permit MAG590038, which discharges to French Stream. EPA’s file records it issued September 28, 2022 and expiring October 31, 2027. 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 | ROCKLAND WASTEWATER TREATMENT FACILITY |
|---|---|
| Permittee as filed | ROCKLAND W W T P |
| NPDES ID | MAG590038 |
| 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 | September 28, 2022 |
| Expiration date | October 31, 2027 |
| Address | Rockland, MA 02370 |
| Receiving water | FRENCH STREAM |
| Subwatershed | Headwaters Indian Head River (HUC 010900020101) |
| 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
- 68Pollutants on file
- 68Under a numeric limit
- 7With a violation of any kind
- 7With 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; the 60 with the most exceedances of 68 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Flow, in conduit or thru treatment plant | 2 | 11 | 11 | April 30, 2026 | 64% over the limit |
| BOD, 5-day, 20 deg. C | 13 | 8 | 8 | July 31, 2026 | 165% over the limit |
| Solids, total suspended | 13 | 4 | 4 | March 31, 2026 | 39% over the limit |
| Nitrogen, ammonia total [as N] | 11 | 4 | 4 | June 30, 2026 | 150% over the limit |
| Phosphorus, total [as P] | 4 | 3 | 3 | April 30, 2026 | 500% over the limit |
| NOEL Static 7Day Chronic Ceriodaphnia dubia | 1 | 3 | 3 | March 31, 2026 | 94% over the limit |
| BOD, 5-day, percent removal | 1 | 1 | 1 | March 31, 2026 | 76% over the limit |
| Nitrogen, Kjeldahl, total [as N] | 4 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 4 | 0 | 0 | ||
| pH | 3 | 0 | 0 | ||
| Nitrogen, total [as N] | 3 | 0 | 0 | ||
| Perfluorooctanoic acid (PFOA) | 3 | 0 | 0 | ||
| Perfluorobutanoic acid (PFBA) | 3 | 0 | 0 | ||
| Perfluorooctanesulfonamide (PFOSA) | 3 | 0 | 0 | ||
| Perfluoropentanoic acid (PFPeA) | 3 | 0 | 0 | ||
| Perfluorohexanoic acid (PFHxA) | 3 | 0 | 0 | ||
| Perfluoroheptanoic acid (PFHpA) | 3 | 0 | 0 | ||
| Perfluorononanoic acid (PFNA) | 3 | 0 | 0 | ||
| Perfluorodecanoic acid (PFDA) | 3 | 0 | 0 | ||
| Perfluoroundecanoic acid (PFUnA) | 3 | 0 | 0 | ||
| Perfluorododecanoic acid (PFDoA) | 3 | 0 | 0 | ||
| Perfluorotridecanoic acid (PFTrDA) | 3 | 0 | 0 | ||
| Perfluorotetradecanoic acid (PFTeDA) | 3 | 0 | 0 | ||
| N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE) | 3 | 0 | 0 | ||
| N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE) | 3 | 0 | 0 | ||
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | 3 | 0 | 0 | ||
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | 3 | 0 | 0 | ||
| Perfluorobutanesulfonic acid (PFBS) | 3 | 0 | 0 | ||
| Perfluorodecanesulfonic acid (PFDS) | 3 | 0 | 0 | ||
| Perfluoroheptanesulfonic acid (PFHpS) | 3 | 0 | 0 | ||
| Perfluorohexanesulfonic acid (PFHxS) | 3 | 0 | 0 | ||
| Perfluorooctanesulfonic acid (PFOS) | 3 | 0 | 0 | ||
| 1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) | 3 | 0 | 0 | ||
| 1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) | 3 | 0 | 0 | ||
| 1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS) | 3 | 0 | 0 | ||
| Perfluoropentanesulfonic acid (PFPeS) | 3 | 0 | 0 | ||
| Perfluorononanesulfonic acid (PFNS) | 3 | 0 | 0 | ||
| Hexafluoropropylene oxide dimer acid (HFPO-DA) | 3 | 0 | 0 | ||
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | 3 | 0 | 0 | ||
| Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA) | 3 | 0 | 0 | ||
| Perfluorododecanesulfonic acid (PFDoS) | 3 | 0 | 0 | ||
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | 3 | 0 | 0 | ||
| N-methyl perfluorooctanesulfonamide (NMeFOSA) | 3 | 0 | 0 | ||
| N-ethyl perfluorooctanesulfonamide (NEtFOSA) | 3 | 0 | 0 | ||
| 3-Perfluoropropyl propanoic acid (3:3 FTCA) | 3 | 0 | 0 | ||
| Perfluoro-3-methoxypropanoic acid (PFMPA) | 3 | 0 | 0 | ||
| 9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS) | 3 | 0 | 0 | ||
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | 3 | 0 | 0 | ||
| 3-Perfluoroheptyl propanoic acid (7:3 FTCA) | 3 | 0 | 0 | ||
| Perfluoro-4-methoxybutanoic acid (PFMBA) | 3 | 0 | 0 | ||
| 2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA) | 3 | 0 | 0 | ||
| Carbon, tot organic [TOC] | 2 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 0 | 0 | ||
| Cadmium, total [as Cd] | 2 | 0 | 0 | ||
| Copper, total [as Cu] | 2 | 0 | 0 | ||
| Lead, total [as Pb] | 2 | 0 | 0 | ||
| Nickel, total [as Ni] | 2 | 0 | 0 | ||
| Zinc, total [as Zn] | 2 | 0 | 0 | ||
| Aluminum, total recoverable | 2 | 0 | 0 | ||
| Aluminum, total [as Al] | 2 | 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 MAG590038.
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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Nearby on the register
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- Every permit record in Massachusetts, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.