NPDES permit MA0003123 · Minor NON-POTW · effective, expires 2028-01-31 · EPA's file as of 2026-09-19
Check this month's numbers before you fileLast period with anything received: 2026-08-31. Most often over: Chlorine, total residual (1).
Reports are due about 15 days after each monitoring period ends (the most common figure among MA permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Temperature, water deg. centigrade | DAILY MX | report only | Oct, Nov, Dec |
| 001 | pH | MINIMUM | >= 6.5 SU | all year |
| 001 | pH | MAXIMUM | <= 8.5 SU | all year |
| 001 | pH | DAILY MX | report only | Oct, Nov, Dec |
| 001 | Salinity | DAILY MX | report only | Oct, Nov, Dec |
| 001 | Solids, total suspended | MO AVG | <= 30 mg/L | all year |
| 001 | Solids, total suspended | DAILY MX | <= 60 mg/L | all year |
| 001 | Solids, total suspended | MO AVG | <= 25 lb/d | all year |
| 001 | Solids, total suspended | DAILY MX | <= 75 lb/d | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, total [as N] | DAILY MX | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | Oct, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | Oct, Nov, Dec |
| 001 | Cadmium, total [as Cd] | DAILY MX | report only | Oct, Nov, Dec |
| 001 | Cadmium, total [as Cd] | DAILY MX | report only | Oct, Nov, Dec |
| 001 | Copper, total [as Cu] | MO AVG | report only | all year |
| 001 | Copper, total [as Cu] | DAILY MX | report only | all year |
| 001 | Copper, total [as Cu] | DAILY MX | report only | Oct, Nov, Dec |
| 001 | Copper, total [as Cu] | DAILY MX | report only | Oct, Nov, Dec |
| 001 | Lead, total [as Pb] | DAILY MX | report only | Oct, Nov, Dec |
| 001 | Lead, total [as Pb] | DAILY MX | report only | Oct, Nov, Dec |
| 001 | Nickel, total [as Ni] | DAILY MX | report only | Oct, Nov, Dec |
| 001 | Nickel, total [as Ni] | DAILY MX | report only | Oct, Nov, Dec |
| 001 | Zinc, total [as Zn] | DAILY MX | report only | Oct, Nov, Dec |
| 001 | Zinc, total [as Zn] | DAILY MX | report only | Oct, Nov, Dec |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | <= 100000 gal/d | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | <= 150000 gal/d | all year |
| 001 | Chlorine, total residual | MO AVG | <= .49 mg/L | all year |
| 001 | Chlorine, total residual | DAILY MX | <= .85 mg/L | all year |
| 001 | Enterococci | MO GEO | <= 35 CFU/100mL | all year |
| 001 | Enterococci | DAILY MX | <= 130 CFU/100mL | all year |
| 001 | Coliform, fecal general | MO GEO | <= 88 MPN/100mL | all year |
| 001 | Coliform, fecal general | DAILY MX | <= 260 MPN/100mL | all year |
| 001 | LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | MO AV MN | report only | Oct, Nov, Dec |
| 001 | LC50 Static 48Hr Acute Menidia | MO AV MN | report only | Oct, Nov, Dec |
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