EPA · Massachusetts · discharge permits by parameter

LC50 Static Renewal 48Hr Acute Pimephales promelas in Massachusetts

• 4Permits carrying a limit
• 2With a recorded exceedance
• 53Nationwide

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

LC50 Static Renewal 48Hr Acute Pimephales promelas nationwide