EPA · North Carolina · discharge permits by parameter
Silver, total [as Ag] in North Carolina
- 7Permits carrying a limit
- 2With a recorded exceedance
- 4,111Nationwide
Permits
Other parameters in North Carolina
- Flow, in conduit or thru treatment plant345
- pH342
- Solids, total suspended330
- Chlorine, total residual277
- Temperature, water deg. centigrade234
- Nitrogen, ammonia total [as N]228
- BOD, 5-day, 20 deg. C206
- Coliform, fecal MF, MFC broth, 44.5 C186
- Oxygen, dissolved [DO]172
- Turbidity111
- Phosphorus, total [as P]102
- Nitrogen, total [as N]99
- Conductivity75
- Copper, total [as Cu]57
- Nitrite + Nitrate total [as N]47
- Nitrogen, Kjeldahl, total [as N]47
- Zinc, total [as Zn]38
- Solids, total dissolved36
- Oil & Grease34
- Flow, total32
- Salinity29
- Chv Statre 7Day Chronic Ceriodaphnia25
- Chloride [as Cl]22
- Lead, total [as Pb]18
- Fluoride, total [as F]14
- Arsenic, total [as As]13
- Hardness, total [as CaCO3]13
- Chromium, total [as Cr]12
- Enterococci12
- Benzene11
- Iron, total [as Fe]11
- Manganese, total [as Mn]10
- BOD, carbonaceous [5 day, 20 C]10
- Mercury, total [as Hg]10
- Cadmium, total [as Cd]9
- Nickel, total [as Ni]8
- Selenium, total [as Se]8
- Ethylbenzene8
- Toluene8
- Oxygen demand, chem. [high level] [COD]7
- Bromide [as Br]7
- Xylene [mix of m+o+p]7
- Cyanide, total [as CN]6
- Zinc, dissolved [as Zn]6
- Lead, dissolved [as Pb]6
- Chloroform6
- Copper, dissolved [as Cu]6
- Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia6
- Naphthalene6
- Solids, settleable6
- Cadmium, dissolved [as Cd]6
- Phenolics, total recoverable5
- Duration of discharge5
- Chlorine, free available4
- Surfactants [MBAS]4
- Chromium, hexavalent [as Cr]4
- Tetrachloroethylene4
- Thallium, total [as Tl]4
- Temperature, water deg. fahrenheit3
- E. coli3