NPDES permit MA0029297 · Minor NON-POTW · expired, expires 2026-02-28 · EPA's file as of 2026-09-19
Check this month's numbers before you fileThis permit expired on 2026-02-28 and is expired: its last limits keep applying until a new permit is issued, and EPA still expects the reports.
Last period with anything received: 2026-07-31.
Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Temperature, water deg. centigrade | DAILY MX | report only | Jul, Aug, Sep |
| 001 | Turbidity | DAILY MX | <= 25 NTU | all year |
| 001 | pH | MINIMUM | >= 6.5 SU | all year |
| 001 | pH | MAXIMUM | <= 8.5 SU | all year |
| 001 | pH | DAILY MX | report only | Jul, Aug, Sep |
| 001 | Salinity | DAILY MX | report only | Jul, Aug, Sep |
| 001 | Solids, total suspended | MO AVG | <= 15 mg/L | all year |
| 001 | Solids, total suspended | DAILY MX | <= 23 mg/L | all year |
| 001 | Oil & Grease | MO AVG | <= 10 mg/L | all year |
| 001 | Oil & Grease | DAILY MX | <= 15 mg/L | all year |
| 001 | Nitrogen, total [as N] | DAILY MX | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | Jul, Aug, Sep |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | Jul, Aug, Sep |
| 001 | Carbon, tot organic [TOC] | DAILY MX | report only | Jul, Aug, Sep |
| 001 | Cadmium, total [as Cd] | DAILY MX | report only | Jul, Aug, Sep |
| 001 | Cadmium, total [as Cd] | DAILY MX | report only | Jul, Aug, Sep |
| 001 | Copper, total [as Cu] | DAILY MX | report only | Jul, Aug, Sep |
| 001 | Copper, total [as Cu] | DAILY MX | report only | Jul, Aug, Sep |
| 001 | Lead, total [as Pb] | DAILY MX | report only | Jul, Aug, Sep |
| 001 | Nickel, total [as Ni] | DAILY MX | report only | Jul, Aug, Sep |
| 001 | Nickel, total [as Ni] | DAILY MX | report only | Jul, Aug, Sep |
| 001 | Zinc, total recoverable | DAILY MX | report only | Jul, Aug, Sep |
| 001 | Zinc, total recoverable | DAILY MX | report only | Jul, Aug, Sep |
| 001 | Lead, total recoverable | DAILY MX | report only | Jul, Aug, Sep |
| 001 | Benzene | MO AVG | report only | all year |
| 001 | Benzene | DAILY MX | report only | all year |
| 001 | Naphthalene | DAILY MX | report only | all year |
| 001 | Surfactants [MBAS] | DAILY MX | report only | all year |
| 001 | BTEX | DAILY MX | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 001 | Perchlorate [ClO4] | DAILY MX | report only | all year |
| 001 | Enterococci | DAILY MX | report only | all year |
| 001 | Coliform, fecal general | DAILY MX | report only | all year |
| 001 | LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | DAILY MN | >= 100 % | Jul, Aug, Sep |
| 001 | LC50 Static 48Hr Acute Menidia | DAILY MN | >= 100 % | Jul, Aug, Sep |
| 001 | Noel Statre 7Day Chronic Arbacia | DAILY MN | >= 100 % | Jul, Aug, Sep |
| 001 | Noel Statre 7Day Chronic Menidia | DAILY MN | >= 100 % | Jul, Aug, Sep |
| 002 | Turbidity | DAILY MX | <= 25 NTU | all year |
| 002 | pH | MINIMUM | >= 6.5 SU | all year |
| 002 | pH | DAILY MX | <= 8.5 SU | all year |
| 002 | Solids, total suspended | MO AVG | <= 15 mg/L | all year |
| 002 | Solids, total suspended | DAILY MX | <= 23 mg/L | all year |
| 002 | Oil & Grease | MO AVG | <= 10 mg/L | all year |
| 002 | Oil & Grease | DAILY MX | <= 15 mg/L | all year |
| 002 | Naphthalene | DAILY MX | report only | all year |
| 002 | BTEX | DAILY MX | report only | all year |
| 002 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 002 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states