EPA · Massachusetts · discharge permits by parameter
Chromium, hexavalent tot recoverable in Massachusetts
- 20Permits carrying a limit
- 0With a recorded exceedance
- 160Nationwide
Permits
Other parameters in Massachusetts
- pH502
- Solids, total suspended486
- Flow, in conduit or thru treatment plant420
- Nitrogen, total [as N]244
- BOD, 5-day, 20 deg. C202
- Nitrogen, ammonia total [as N]193
- Phosphorus, total [as P]187
- Chlorine, total residual187
- Copper, total [as Cu]178
- Copper, total recoverable168
- Solids, suspended percent removal166
- LC50 Static 48Hr Acute Ceriodaphnia dubia164
- BOD, 5-day, percent removal163
- Lead, total recoverable149
- Zinc, total [as Zn]140
- Nitrogen, Kjeldahl, total [as N]139
- Coliform, fecal general135
- Aluminum, total [as Al]132
- Lead, total [as Pb]130
- Turbidity129
- Nitrite + Nitrate total [as N]124
- Cyanide, total [as CN]121
- Iron, total recoverable119
- Solids, total dissolved [TDS]118
- Hydrocarbons, total petroleum117
- Chloride, total recoverable115
- Arsenic, total recoverable115
- Oxygen, dissolved [DO]110
- Oil & Grease110
- Nickel, total [as Ni]107
- Cadmium, total [as Cd]107
- Zinc, total recoverable103
- Carbon, tot organic [TOC]96
- Hardness, total [as CaCO3]94
- Naphthalene93
- E. coli93
- Benzo[a]pyrene88
- Chrysene87
- Benzo[a]anthracene87
- Indeno[1,2,3-cd]pyrene86
- Perfluorooctanoic acid (PFOA)86
- Perfluoroheptanoic acid (PFHpA)86
- Benzo[k]fluoranthene85
- Temperature, water deg. centigrade85
- Perfluorooctanesulfonic acid (PFOS)85
- Perfluorohexanesulfonic acid (PFHxS)85
- Perfluorononanoic acid (PFNA)84
- Perfluorodecanoic acid (PFDA)83
- Pyrene80
- Dibenz[a,h]anthracene78
- Fluoranthene78
- Aluminum, total recoverable77
- Chemical Oxygen Demand [COD]73
- Acenaphthene72
- Anthracene71
- Nickel, total recoverable69
- Fluorene69
- Benzo[b]fluoranthene69
- Carbon, dissolved organic [as C]66
- Temperature, water deg. fahrenheit66