EPA · Puerto Rico · discharge permits by parameter
Chemical Oxygen Demand [COD] in Puerto Rico
- 18Permits carrying a limit
- 1With a recorded exceedance
- 4,700Nationwide
Permits
Other parameters in Puerto Rico
- pH179
- Turbidity161
- Copper, total [as Cu]155
- Temperature, water deg. centigrade154
- Solids, settleable144
- Flow, in conduit or thru treatment plant144
- Oxygen, dissolved [DO]143
- Color [PT-CO units]134
- Chlorine, total residual130
- BOD, 5-day, 20 deg. C129
- Phosphorus, total [as P]107
- Lead, total [as Pb]105
- Solids, total suspended100
- Oil & Grease84
- Mercury, total [as Hg]80
- Sulfate, total [as SO4]73
- Zinc, total [as Zn]68
- Ammonia & ammonium- total64
- Coliform, fecal general62
- Surfactants [MBAS]62
- Solids, total dissolved53
- Sulfide-hydrogen sulfide [undissociated]52
- Whole Effluent Toxicity [WET] - D. magna51
- Whole Effluent Toxicity [WET] - P. promelas51
- Cyanide, free available49
- Coliform, fecal - % samples exceeding limit49
- Arsenic, total [as As]48
- Nitrogen, total [as N]47
- Solids, suspended percent removal45
- BOD, 5-day, percent removal45
- Cadmium, total [as Cd]44
- Nitrogen, ammonia, total [as NH3]42
- Coliform, total general40
- Enterococci38
- Cyanide, total [as CN]29
- Fluoride, total [as F]26
- Sulfide, total [as S]24
- Silver, total [as Ag]24
- Nitrite + Nitrate total [as N]23
- Chromium, hexavalent [as Cr]22
- Pentachlorophenol22
- 2,4,6-Trichlorophenol17
- 2-Methyl-4,6-dinitrophenol17
- Solids, total dissolved- 180 deg. C16
- Nickel, total [as Ni]14
- Selenium, total [as Se]13
- 2-Chlorophenol12
- Phenol12
- 2,4-Dinitrophenol12
- Iron, total [as Fe]11
- 2,4-Dichlorophenol11
- Nitrite Plus Nitrate Total11
- Benzo[a]anthracene10
- Benzo[k]fluoranthene10
- Chrysene10
- Chromium, total [as Cr]10
- Benzo[ghi]perylene9
- Fluorene9
- Ammonia nitrogen, total, [as N] 30 day9
- Acenaphthene9