CLEAN HARBORS OF BRAINTREE,INC

NPDES permit MA0031551 · Major NON-POTW · expired, expires 2026-01-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

This permit expired on 2026-01-31 and is expired: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

EPA's record, 2025-09-01 to 2026-08-31

5values over a limit
0required values missing, on 0 form(s)
1of 18 forms filed late

Last period with anything received: 2026-07-31. Most often over: Polychlorinated biphenyls [PCBs] (2), Zinc, total [as Zn] (2), pH (1).

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (78)

OutfallParameterStatisticLimitMonths
001Flow rateDAILY MX <= 350 gal/min all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 8.5 SU all year
001pHMAXIMUM report only Aug
001SalinityDAILY MX report only Aug, Nov
001Solids, total suspendedMO AVG <= 20 mg/L all year
001Solids, total suspendedDAILY MX <= 30 mg/L all year
001Oil & GreaseDAILY MX <= 5 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX report only Aug
001Nitrogen, ammonia total [as N]DAILY MX report only Aug
001Carbon, tot organic [TOC]DAILY MX report only Aug
001Arsenic, total [as As]MO AVG <= 36 ug/L all year
001Arsenic, total [as As]DAILY MX <= 69 ug/L all year
001Cadmium, total [as Cd]MO AVG <= 8.8 ug/L all year
001Cadmium, total [as Cd]DAILY MX report only Aug
001Cadmium, total [as Cd]DAILY MX <= 17.2 ug/L all year
001Cadmium, total [as Cd]DAILY MX report only Aug
001Chromium, total [as Cr]MO AVG <= 323 ug/L all year
001Chromium, total [as Cr]DAILY MX <= 746 ug/L all year
001Cobalt, total [as Co]MO AVG <= 124 ug/L all year
001Cobalt, total [as Co]DAILY MX <= 192 ug/L all year
001Copper, total [as Cu]MO AVG <= 3.1 ug/L all year
001Copper, total [as Cu]DAILY MX report only Aug
001Copper, total [as Cu]DAILY MX <= 4.8 ug/L all year
001Copper, total [as Cu]DAILY MX report only Aug
001Lead, total [as Pb]MO AVG <= 8.1 ug/L all year
001Lead, total [as Pb]DAILY MX report only Aug
001Lead, total [as Pb]DAILY MX <= 210 ug/L all year
001Lead, total [as Pb]DAILY MX report only Aug
001Nickel, total [as Ni]MO AVG <= 8.2 ug/L all year
001Nickel, total [as Ni]DAILY MX report only Aug
001Nickel, total [as Ni]DAILY MX <= 74 ug/L all year
001Nickel, total [as Ni]DAILY MX report only Aug
001Silver, total [as Ag]DAILY MX <= 1.9 ug/L all year
001Vanadium, total [as V]MO AVG <= 66.2 ug/L all year
001Vanadium, total [as V]DAILY MX <= 218 ug/L all year
001Zinc, total [as Zn]MO AVG <= 81 ug/L all year
001Zinc, total [as Zn]DAILY MX report only Aug
001Zinc, total [as Zn]DAILY MX <= 90 ug/L all year
001Zinc, total [as Zn]DAILY MX report only Aug
001Antimony, total [as Sb]MO AVG <= 206 ug/L all year
001Antimony, total [as Sb]DAILY MX <= 249 ug/L all year
001Tin, total [as Sn]MO AVG <= 120 ug/L all year
001Tin, total [as Sn]DAILY MX <= 409 ug/L all year
001Selenium, total [as Se]MO AVG <= 71 ug/L all year
001Selenium, total [as Se]DAILY MX <= 290 ug/L all year
001Titanium, total [as Ti]MO AVG <= 61.8 ug/L all year
001Titanium, total [as Ti]DAILY MX <= 94.7 ug/L all year
001BenzeneDAILY MX <= 5 ug/L all year
001Butyl benzyl phthalateMO AVG <= 88.7 ug/L Aug
001Butyl benzyl phthalateDAILY MX <= 188 ug/L Aug
001Di[2-ethylhexyl] phthalate [DEHP]MO AVG <= 101 ug/L Aug
001Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= 215 ug/L Aug
001Polychlorinated biphenyls [PCBs]MO AVG <= .03 ug/L all year
001BTEXDAILY MX <= 100 ug/L all year
001Number of EventsET report only all year
001Temperature Increase Deg. CDAILY MX report only Aug
001Total Group I Polycyclic Aromatic HydrocarbonsDAILY MX <= 1 ug/L all year
001Total Group II Polycyclic Aromatic HydrocarbonsDAILY MX <= 10 ug/L all year
001EnterococciDAILY MX report only all year
001Mercury, total [as Hg]MO AVG <= .739 ug/L all year
001Mercury, total [as Hg]DAILY MX <= 1.8 ug/L all year
001Coliform, fecal generalDAILY MX report only all year
001n-DecaneMO AVG <= 437 ug/L Aug
001n-DecaneDAILY MX <= 948 ug/L Aug
001CarbazoleMO AVG <= 276 ug/L Aug
001CarbazoleDAILY MX <= 598 ug/L Aug
001n-OctadecaneMO AVG <= 302 ug/L Aug
001n-OctadecaneDAILY MX <= 589 ug/L Aug
001Flow, totalDAILY MX report only all year
001LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)DAILY MN >= 100 % Aug
001LC50 Static 48Hr Acute MenidiaDAILY MN >= 100 % Aug
PFASPerfluorooctanoic acid (PFOA)DAILY MX report only all year
PFASPerfluoroheptanoic acid (PFHpA)DAILY MX report only all year
PFASPerfluorononanoic acid (PFNA)DAILY MX report only all year
PFASPerfluorodecanoic acid (PFDA)DAILY MX report only all year
PFASPerfluorohexanesulfonic acid (PFHxS)DAILY MX report only all year
PFASPerfluorooctanesulfonic acid (PFOS)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