Attachment E. Top 20 Substances in CEPs

Attachment E: Top 20 Substances Found in Completed Exposure Pathways (CEPS) at Hazardous Waste Sites, 2003

2003 CEP Order	2003 CERCLA Order	Substance
1	2	Lead
2	16	Trichloroethylene
3	1	Arsenic
4	30	Tetrachloroethylene
5		Volatile Organic Compounds, Unspecified
6	6	Benzene
7	7	Cadmium
8	76	Chromium
9	5	Polychlorinated Biphenyls
10	3	Mercury
11	131	Manganese
12	73	Zinc
13	95	1,1,1-Trichloroethane
14	141	Copper
15	11	Chloroform
16	77	1,1-Dichloroethene
17	8	Polycyclic Aromatic Hydrocarbons
18	9	Benzo(a)pyrene
19	80	Methlene Chloride
20	51	Nickel

Source: http://www.atsdr.cdc.gov/clist.html

http://www.atsdr.cdc.gov/cep.html