Civil Engineering Reference
In-Depth Information
PAHs (Benzo(a)pyrene)
PCBs (Polychlorinated Biphenyls)
Pentachlorophenol
Picloram
Simazine
Toxaphene
0.0002
0.0005
0.001
0.5
0.004
0.003
Cancer risk
Cancer risk
Cancer risk
Kidney / liver effects
Cancer risk
Cancer risk
Volatile Organic Compounds
1,1,1-Trichloroethane
1,1,2-Trichloroethane
1,1-Dichloroethylene
1,2,4-Trichlorobenzene
1,2-Dichloroethane
1,2-Dichloropropane
Benzene
Carbon Tetrachloride
Chlorobenzene
Cis-1,2-Dichloroethylene
Dichloromethane
Ethylbenzene
Ortho-Dichlorobenzene
Para-Dichlorobenzene
Styrene
Tetrachloroethylene (PCE)
Toluene
Trans-1,2-Dichloroethylene
Trichloroethylene (TCE)
Vinyl Chloride
Xylenes (total)
0.2
0.005
0.007
0.07
0.005
0.005
0.005
0.005
0.1
0.07
0.005
0.7
0.6
0.075
0.1
0.005
1
0.1
0.005
0.002
10
Liver / nervous / circulatory system effects
Kidney / liver effects
Kidney / liver effects
Internal organs / adrenal effects
Cancer risk
Cancer risk
Leukemia / cancer risk
Cancer risk
Nervous system and liver effects
Liver / nervous / circulatory effects
Cancer risk
Kidney / liver / nervous system effects / cancer risk
Kidney / liver / blood cell effects
Kidney / liver effects
Liver / nervous system effects
Cancer risk
Kidney / liver / nervous / circulatory effects
Liver / nervous / circulatory effects
Cancer risk
Cancer risk
Kidney / liver / nervous system effects
For VOCs: Original monitoring re-
quired four quarterly samples dur-
ing the first three years.
Monitoring annually beginning in
1996, if no detects. Or, if all 21
VOCs were sampled after January
1988 and not detected, the state
may authorize annual sampling in
1993. Monitor every three years
after three years of no detects.
Monitoring may be reduced based
upon results of vulnerability as-
sessment. USEPA issued guide-
lines for alternative monitoring
(formerly Permanent Monitoring
Relief) in August 1997. After
completion of source water assess-
ments in 2003, primary agencies
will be allowed to develop alterna-
tive monitoring requirements.
