|
Contaminant
|
Health Effect of Contaminant
|
Maximum Contaminant Level
|
|
Arsenic
|
Central nervous system problems
|
0.05mg/L
|
|
Asbestos
|
Cancer risk
|
- 7 MFL
- (million
fibers per liter)
|
|
Barium
|
Gastrointestinal
|
2mg/L
|
|
Chromium (total)
|
Liver and kidneys
|
0.1mg/L
|
|
Copper
|
Gastrointestinal
|
1.3mg/L
|
|
Fluoride
|
Skeletal
|
4mg/L
|
|
Lead
|
Cancer risk/kidneys
|
0.015mg/L
|
|
Mercury (total)
|
Kidney/nervous system
|
0.002mg/L
|
|
Nitrate
|
- Methemoglobinemia
- (blue baby syndrome)
|
10mg/L
|
|
Nitrite
|
- Methemoglobinemia
- (blue baby syndrome)
|
1mg/L
|
|
Selenium (total)
|
Kidney/nervous system
|
0.05mg/L
|
|
Sulfate
|
Gastrointestinal
|
- 500mg/L
- (proposed
regulation)
|
|
Gross alpha partical
|
Cancer risk
|
15pCi/L
|
|
Radium 226 & 228
|
Cancer risk
|
- 20pCi/L
- (proposed
regulation)
|
|
Radon
|
Cancer risk
|
- 300pCi/L
- (proposed
regulation)
|
|
Uranium
|
Cancer risk
|
- 30pCi/L
- (proposed
regulation)
|
|
Atrazine
|
Cancer risk/kidneys
|
0.003mg/L
|
|
Benzene
|
Cancer risk
|
0.005mg/L
|
|
Chlordane
|
Cancer risk/kidneys
|
0.002mg/L
|
|
Ethylene Dibromide (EDB)
|
Cancer risk
|
0.00005mg/L
|
|
Lindane
|
Kidney/nervous system
|
0.0002mg/L
|
|
Polychlorinated Byphenyls (PCBs)
|
Cancer risk
|
0.0005mg/L
|
|
Styrene
|
liver/nervous system
|
0.1mg/L
|
|
Tetrachloroethylene (PCE)
|
Cancer risk
|
0.005mg/L
|
|
Trichloroethylene (TCE)
|
Cancer risk
|
0.005mg/L
|
|
Trihalomethanes (THMs)
|
Cancer risk
|
0.100mg/L
|
|
Vinyl Chloride
|
Cancer risk
|
0.002mg/L
|
|
Xylenes (total)
|
liver/nervous system
|
10mg/L
|
