Skip directly to search Skip directly to A to Z list Skip directly to navigation Skip directly to site content Skip directly to page options

CEP Site Count Report Archive

This webpage contains the previous CEP Reports and provides expanded information on this report and past CEP reports.

Previous CEP Reports:
(No Report was published in 2009 while ATSDR transitioned to a new science database)

2007 ATSDR CEP Site Count Report

Hide this 2007 data.

2007 ATSDR CEP Site Count Report

2001 ATSDR Substance Priority List
Rank Substance Name All Sites/
Events
NPL Sites CAS RN
1 LEAD 476 284 007439-92-1
2 ARSENIC 405 231 007440-38-2
3 TRICHLOROETHYLENE 391 301 000079-01-6
4 TETRACHLOROETHYLENE 309 219 000127-18-4
5 BENZENE 242 147 000071-43-2
6 CADMIUM 236 151 007440-43-9
7 CHROMIUM 216 138 007440-47-3
8 MERCURY 189 100 007439-97-6
9 VOLATILE ORGANIC COMPOUNDS N.O.S. 185 124 HZ1900-01-T
10 POLYCHLORINATED BIPHENYLS 184 117 001336-36-3
11 MANGANESE 180 101 007439-96-5
12 ZINC 170 102 007440-66-6
13 COPPER 165 96 007440-50-8
14 BENZO(A)PYRENE 139 68 000050-32-8
15 1,1,1-TRICHLOROETHANE 134 108 000071-55-6
16 CHLOROFORM 126 93 000067-66-3
17 ANTIMONY 124 80 007440-36-0
17 NICKEL 124 75 007440-02-0
19 1,1-DICHLOROETHENE 122 98 000075-35-4
19 VINYL CHLORIDE 122 95 000075-01-4
21 POLYCYCLIC AROMATIC HYDROCARBONS 118 78 130498-29-2
22 METHYLENE CHLORIDE 116 73 000075-09-2
23 TOLUENE 114 68 000108-88-3
24 BARIUM 110 60 007440-39-3
25 BENZO(A)ANTHRACENE 102 50 000056-55-3
26 1,2-DICHLOROETHANE 99 78 000107-06-2
26 IRON 99 62 007439-89-6
26 VANADIUM 99 53 007440-62-2
29 DI(2-ETHYLHEXYL)PHTHALATE 96 64 000117-81-7
30 BENZO(B)FLUORANTHENE 94 39 000205-99-2
31 CHRYSENE 93 45 000218-01-9
32 1,1-DICHLOROETHANE 92 75 000075-34-3
33 CARBON TETRACHLORIDE 90 59 000056-23-5
34 METALS N.O.S. 88 55 HZ0900-01-T
35 BERYLLIUM 86 44 007440-41-7
36 BENZO(K)FLUORANTHENE 83 37 000207-08-9
36 PHENANTHRENE 83 35 000085-01-8
38 INDENO(1,2,3-CD)PYRENE 82 36 000193-39-5
39 NAPHTHALENE 81 41 000091-20-3
40 DIBENZO(A,H)ANTHRACENE 75 32 000053-70-3
41 DIELDRIN 74 37 000060-57-1
42 ETHYLBENZENE 73 43 000100-41-4
43 XYLENES, TOTAL 72 39 001330-20-7
44 THALLIUM 71 36 007440-28-0
45 ALUMINUM 70 43 007429-90-5
46 PENTACHLOROPHENOL 68 43 000087-86-5
47 DDT, P,P'- 66 41 000050-29-3
47 COBALT 66 30 007440-48-4
49 BENZO(GHI)PERYLENE 63 25 000191-24-2
50 SODIUM 61 34 007440-23-5
51 SELENIUM 58 24 007782-49-2
52 DDE, P,P'- 57 35 000072-55-9
53 1,2-DICHLOROETHENE, TRANS- 54 51 000156-60-5
54 1,2-DICHLOROETHENE, CIS- 52 38 000156-59-2
55 1,2-DICHLOROETHYLENE 51 43 000540-59-0
55 FLUORANTHENE 51 19 000206-44-0
57 2-METHYLNAPHTHALENE 50 22 000091-57-6
57 PYRENE 50 20 000129-00-0
59 DDD, P,P'- 49 29 000072-54-8
59 HEPTACHLOR EPOXIDE 49 22 001024-57-3
61 CHLOROBENZENE 47 34 000108-90-7
62 CHLORDANE 45 31 000057-74-9
62 CYANIDE 45 23 000057-12-5
64 AROCLOR 1260 43 26 011096-82-5
64 SILVER 43 20 007440-22-4
66 MAGNESIUM 41 22 007439-95-4
66 DIBENZOFURAN 41 19 000132-64-9
68 PESTICIDES N.O.S. 40 22 HZ1200-01-T
68 ASBESTOS 40 12 001332-21-4
70 AROCLOR 1254 38 26 011097-69-1
71 ACETONE 37 20 000067-64-1
71 ALDRIN 37 14 000309-00-2
73 BROMODICHLOROMETHANE 36 26 000075-27-4
73 FLUORENE 36 13 000086-73-7
75 2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN 35 26 001746-01-6
76 2-BUTANONE 34 22 000078-93-3
77 NITRATE 33 24 014797-55-8
77 DIOXINS N.O.S. 33 22 HZ0400-05-T
77 CARBAZOLE 33 10 000086-74-8
77 ANTHRACENE 33 9 000120-12-7
81 CALCIUM 32 23 007440-70-2
81 ACENAPHTHYLENE 32 12 000208-96-8
83 1,2,4-TRIMETHYLBENZENE 31 6 000095-63-6
84 DI-N-BUTYL PHTHALATE 30 13 000084-74-2
84 HEPTACHLOR 30 11 000076-44-8
86 1,1,2-TRICHLOROETHANE 28 22 000079-00-5
86 1,1,2,2-TETRACHLOROETHANE 28 20 000079-34-5
86 BORON 28 15 007440-42-8
86 STYRENE 28 12 000100-42-5
86 1,4-DICHLOROBENZENE 28 10 000106-46-7
86 ACENAPHTHENE 28 9 000083-32-9
86 BUTYL BENZYL PHTHALATE 28 7 000085-68-7
93 1,2-DICHLOROPROPANE 27 20 000078-87-5
94 HEXACHLOROCYCLOHEXANE, GAMMA- 26 14 000058-89-9
95 POTASSIUM 25 17 007440-09-7
95 DIBROMOCHLOROMETHANE 25 16 000124-48-1
95 CHLOROMETHANE 25 14 000074-87-3
95 PHENOL 25 14 000108-95-2
99 CHROMIUM, HEXAVALENT 24 14 018540-29-9
100 CRESOL, PARA- 23 8 000106-44-5

Hide this 2007 data.

2005 ATSDR CEP Site Count Report

Hide this 2005 data.

2005 ATSDR CEP Site Count Report

2001 ATSDR Substance Priority List
Rank Substance Name All Sites/
Events
NPL Sites CAS RN
1 LEAD 431 267 007439-92-1
2 TRICHLOROETHYLENE 363 286 000079-01-6
3 ARSENIC 341 208 007440-38-2
4 TETRACHLOROETHYLENE 280 207 000127-18-4
5 BENZENE 210 137 000071-43-2
6 CADMIUM 207 136 007440-43-9
7 VOLATILE ORGANIC COMPOUNDS N.O.S. 193 132 HZ1900-01-T
7 CHROMIUM 193 129 007440-47-3
9 POLYCHLORINATED BIPHENYLS 177 116 001336-36-3
10 MERCURY 167 93 007439-97-6
11 MANGANESE 164 95 007439-96-5
12 ZINC 158 95 007440-66-6
13 COPPER 143 83 007440-50-8
14 1,1,1-TRICHLOROETHANE 135 110 000071-55-6
15 CHLOROFORM 124 92 000067-66-3
16 BENZO(A)PYRENE 122 58 000050-32-8
17 1,1-DICHLOROETHENE 117 96 000075-35-4
17 POLYCYCLIC AROMATIC HYDROCARBONS 117 79 130498-29-2
19 NICKEL 112 70 007440-02-0
20 METHYLENE CHLORIDE 111 73 000075-09-2
20 TOLUENE 111 68 000108-88-3
22 ANTIMONY 108 69 007440-36-0
23 VINYL CHLORIDE 103 84 000075-01-4
24 BARIUM 102 56 007440-39-3
25 1,2-DICHLOROETHANE 96 77 000107-06-2
26 DI(2-ETHYLHEXYL)PHTHALATE 91 59 000117-81-7
26 METALS N.O.S. 91 57 HZ0900-01-T
28 1,1-DICHLOROETHANE 90 77 000075-34-3
29 IRON 88 56 007439-89-6
29 VANADIUM 88 48 007440-62-2
31 BENZO(A)ANTHRACENE 87 43 000056-55-3
32 CHRYSENE 86 41 000218-01-9
33 CARBON TETRACHLORIDE 83 55 000056-23-5
34 BERYLLIUM 82 42 007440-41-7
35 BENZO(B)FLUORANTHENE 79 32 000205-99-2
36 PHENANTHRENE 78 33 000085-01-8
37 NAPHTHALENE 77 40 000091-20-3
38 BENZO(K)FLUORANTHENE 74 32 000207-08-9
39 ETHYLBENZENE 73 44 000100-41-4
40 INDENO(1,2,3-CD)PYRENE 70 30 000193-39-5
41 XYLENES, TOTAL 69 39 001330-20-7
42 DIBENZO(A,H)ANTHRACENE 65 27 000053-70-3
43 PENTACHLOROPHENOL 64 41 000087-86-5
44 DIELDRIN 63 34 000060-57-1
44 COBALT 63 29 007440-48-4
44 THALLIUM 63 29 007440-28-0
47 ALUMINUM 62 41 007429-90-5
48 DDT, P,P'- 59 37 000050-29-3
48 SODIUM 59 35 007440-23-5
50 BENZO(GHI)PERYLENE 55 21 000191-24-2
51 SELENIUM 53 22 007782-49-2
52 DDE, P,P'- 52 32 000072-55-9
53 1,2-DICHLOROETHENE, TRANS- 51 49 000156-60-5
54 1,2-DICHLOROETHYLENE 49 41 000540-59-0
55 CHLOROBENZENE 48 35 000108-90-7
55 2-METHYLNAPHTHALENE 48 22 000091-57-6
55 PYRENE 48 19 000129-00-0
55 FLUORANTHENE 48 18 000206-44-0
59 HEPTACHLOR EPOXIDE 46 22 001024-57-3
60 DDD, P,P'- 45 26 000072-54-8
60 CYANIDE 45 24 000057-12-5
62 PESTICIDES N.O.S. 44 26 HZ1200-01-T
63 CHLORDANE 42 29 000057-74-9
64 MAGNESIUM 41 24 007439-95-4
65 SILVER 40 19 007440-22-4
66 1,2-DICHLOROETHENE, CIS- 39 29 000156-59-2
66 DIBENZOFURAN 39 18 000132-64-9
68 ACETONE 36 21 000067-64-1
68 ASBESTOS 36 14 001332-21-4
70 AROCLOR 1260 34 21 011096-82-5
70 FLUORENE 34 13 000086-73-7
72 BROMODICHLOROMETHANE 33 24 000075-27-4
72 DIOXINS N.O.S. 33 22 HZ0400-05-T
74 CALCIUM 32 24 007440-70-2
74 AROCLOR 1254 32 23 011097-69-1
74 NITRATE 32 23 014797-55-8
74 2-BUTANONE 32 22 000078-93-3
74 ALDRIN 32 12 000309-00-2
79 2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN 31 22 001746-01-6
79 ANTHRACENE 31 9 000120-12-7
79 CARBAZOLE 31 9 000086-74-8
82 DI-N-BUTYL PHTHALATE 30 13 000084-74-2
83 STYRENE 28 13 000100-42-5
83 ACENAPHTHYLENE 28 11 000208-96-8
83 1,4-DICHLOROBENZENE 28 10 000106-46-7
83 ACENAPHTHENE 28 9 000083-32-9
83 BUTYL BENZYL PHTHALATE 28 7 000085-68-7
88 1,1,2,2-TETRACHLOROETHANE 27 20 000079-34-5
88 1,2-DICHLOROPROPANE 27 20 000078-87-5
88 HEPTACHLOR 27 9 000076-44-8
88 1,2,4-TRIMETHYLBENZENE 27 5 000095-63-6
92 1,1,2-TRICHLOROETHANE 26 21 000079-00-5
92 POTASSIUM 26 19 007440-09-7
92 PHENOL 26 15 000108-95-2
95 CHLOROMETHANE 25 14 000074-87-3
95 HEXACHLOROCYCLOHEXANE, GAMMA- 25 13 000058-89-9
97 CRESOL, PARA- 23 8 000106-44-5
98 BORON 22 14 007440-42-8
98 CHROMIUM, HEXAVALENT 22 14 018540-29-9
98 METHYL ISOBUTYL KETONE 22 13 000108-10-1

Hide this 2005 data.

2003 ATSDR CEP Site Count Report

Hide this 2003 data.

2003 ATSDR CEP Site Count Report

2001 ATSDR Substance Priority List
Rank Substance Name All Sites/
Events
NPL Sites CAS RN
1 LEAD 386 251 007439-92-1
2 TRICHLOROETHYLENE 338 280 000079-01-6
3 ARSENIC 299 192 007440-38-2
4 TETRACHLOROETHYLENE 251 198 000127-18-4
5 VOLATILE ORGANIC COMPOUNDS, UNSPECIFIED 187 129 HZ1900-01-T
6 BENZENE 184 130 000071-43-2
7 CADMIUM 183 126 007440-43-9
8 CHROMIUM 178 121 007440-47-3
9 POLYCHLORINATED BIPHENYLS 168 111 001336-36-3
10 MERCURY 144 86 007439-97-6
10 MANGANESE 144 84 007439-96-5
12 ZINC 143 88 007440-66-6
13 1,1,1-TRICHLOROETHANE 128 108 000071-55-6
14 COPPER 125 73 007440-50-8
15 CHLOROFORM 116 90 000067-66-3
16 1,1-DICHLOROETHENE 109 93 000075-35-4
17 POLYCYCLIC AROMATIC HYDROCARBONS 108 75 130498-29-2
18 BENZO(A)PYRENE 105 55 000050-32-8
19 METHYLENE CHLORIDE 104 72 000075-09-2
20 NICKEL 102 65 007440-02-0
21 TOLUENE 101 66 000108-88-3
22 VINYL CHLORIDE 100 81 000075-01-4
23 BARIUM 95 54 007440-39-3
24 ANTIMONY 92 58 007440-36-0
25 1,2-DICHLOROETHANE 89 73 000107-06-2
26 1,1-DICHLOROETHANE 88 76 000075-34-3
26 DI(2-ETHYLHEXYL)PHTHALATE 88 58 000117-81-7
28 METALS N.O.S. 87 56 HZ0900-01-T
29 BENZO(A)ANTHRACENE 78 41 000056-55-3
29 CHRYSENE 78 38 000218-01-9
31 VANADIUM 76 41 007440-62-2
32 CARBON TETRACHLORIDE 75 54 000056-23-5
32 BERYLLIUM 75 35 007440-41-7
34 IRON 74 45 007439-89-6
35 PHENANTHRENE 73 32 000085-01-8
36 NAPHTHALENE 70 37 000091-20-3
37 BENZO(B)FLUORANTHENE 68 29 000205-99-2
38 BENZO(K)FLUORANTHENE 65 30 000207-08-9
39 ETHYLBENZENE 62 38 000100-41-4
39 XYLENES, TOTAL 62 38 001330-20-7
41 INDENO(1,2,3-CD)PYRENE 61 27 000193-39-5
42 HEPTACHLOR EPOXIDE 60 40 000087-86-5
43 COBALT 57 25 007440-48-4
44 DDT, P,P'- 54 33 000050-29-3
44 DIELDRIN 54 28 000060-57-1
44 THALLIUM 54 25 007440-28-0
47 DIBENZO(A,H)ANTHRACENE 53 26 000053-70-3
48 BENZO(GHI)PERYLENE 52 21 000191-24-2
49 ALUMINUM 51 32 007429-90-5
50 1,2-DICHLOROETHENE, TRANS- 50 47 000156-60-5
50 SODIUM 50 33 007440-23-5
52 DDE, P,P'- 49 29 000072-55-9
52 SELENIUM 49 22 007782-49-2
54 1,2-DICHLOROETHYLENE 47 40 000540-59-0
54 2-METHYLNAPHTHALENE 47 21 000091-57-6
56 CHLOROBENZENE 45 33 000108-90-7
56 CYANIDE 45 24 000057-12-5
58 DDD, P,P'- 44 25 000072-54-8
59 FLUORANTHENE 43 17 000206-44-0
60 PYRENE 42 17 000129-00-0
61 HEPTACHLOR EPOXIDE 41 19 001024-57-3
62 PESTICIDES, UNSPECIFIED 39 23 HZ1200-01-T
63 SILVER 38 18 007440-22-4
63 DIBENZOFURAN 38 17 000132-64-9
65 1,2-DICHLOROETHENE, CIS- 37 28 000156-59-2
65 CHLORDANE 37 26 000057-74-9
67 MAGNESIUM 34 21 007439-95-4
68 2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN 32 23 001746-01-6
68 ACETONE 32 20 000067-64-1
70 BROMODICHLOROMETHANE 30 23 000075-27-4
70 NITRATE 30 22 014797-55-8
70 AROCLOR 1254 30 20 011097-69-1
70 ASBESTOS 30 14 001332-21-4
70 FLUORENE 30 12 000086-73-7
70 CARBAZOLE 30 9 000086-74-8
76 DI-N-BUTYL PHTHALATE 29 15 000084-74-2
77 2-BUTANONE 28 21 000078-93-3
77 AROCLOR 1260 28 17 011096-82-5
77 ACENAPHTHYLENE 28 12 000208-96-8
77 ANTHRACENE 28 10 000120-12-7
81 ACENAPHTHENE 27 9 000083-32-9
82 CALCIUM 26 22 007440-70-2
82 DIOXINS N.O.S. 26 17 HZ0400-05-T
82 PHENOL 26 16 000108-95-2
82 ALDRIN 26 7 000309-00-2
82 BUTYL BENZYL PHTHALATE 26 7 000085-68-7
87 1,2-DICHLOROPROPANE 25 19 000078-87-5
87 1,1,2,2-TETRACHLOROETHANE 25 18 000079-34-5
89 1,1,2-TRICHLOROETHANE 24 19 000079-00-5
90 STYRENE 24 12 000100-42-5
91 DI-N-OCTYL PHTHALATE 23 13 000117-84-0
91 HEXACHLOROCYCLOHEXANE, GAMMA- 23 13 000058-89-9
91 CRESOL, PARA- 23 9 000106-44-5
94 1,4-DICHLOROBENZENE 22 9 000106-46-7
94 HEPTACHLOR 22 6 000076-44-8
96 CHLOROMETHANE 21 12 000074-87-3
96 SEMIVOLATILE ORGANIC COMPOUNDS N.O.S. 21 12 HZ1900-02-T
98 POTASSIUM 20 16 007440-09-7
98 CHLORODIBROMOMETHANE 20 15 000124-48-1
98 1,2,4-TRIMETHYLBENZENE 20 2 000095-63-6

Hide this 2003 data.

2001 ATSDR CEP Site Count Report

Hide this 2001 data.

2001 ATSDR CEP Site Count Report

2001 ATSDR Substance Priority List
Rank Substance Name All Sites/
Events
NPL Sites CAS RN
1 LEAD 359 238 007439-92-1
2 TRICHLOROETHYLENE 319 271 000079-01-6
3 ARSENIC 267 147 007440-38-2
4 TETRACHLOROETHYLENE 236 190 000127-18-4
5 CADMIUM 176 123 007440-43-9
6 BENZENE 174 128 000071-43-2
7 CHROMIUM 169 113 007440-47-3
8 VOLATILE ORGANIC COMPOUNDS, UNSPECIFIED 162 118 HZ1900-01-T
9 POLYCHLORINATED BIPHENYLS 152 104 001336-36-3
10 MERCURY 136 82 007439-97-6
11 ZINC 134 83 007440-66-6
11 MANGANESE 134 80 007439-96-5
13 1,1,1-TRICHLOROETHANE 125 106 000071-55-6
14 COPPER 118 67 007440-50-8
15 CHLOROFORM 113 88 000067-66-3
16 1,1-DICHLOROETHENE 105 91 000075-35-4
17 METHYLENE CHLORIDE 103 72 000075-09-2
18 TOLUENE 102 68 000108-88-3
19 VINYL CHLORIDE 99 84 000075-01-4
20 NICKEL 98 63 007440-02-0
20 BENZO(A)PYRENE 98 54 000050-32-8
22 POLYCYCLIC AROMATIC HYDROCARBONS 97 68 130498-29-2
23 BARIUM 96 54 007440-39-3
24 ANTIMONY 88 57 007440-36-0
25 1,2-DICHLOROETHANE 86 71 000107-06-2
26 DI(2-ETHYLHEXYL)PHTHALATE 85 55 000117-81-7
27 1,1-DICHLOROETHANE 84 75 000075-34-3
28 BERYLLIUM 78 36 007440-41-7
29 BENZO(A)ANTHRACENE 75 40 000056-55-3
30 CARBON TETRACHLORIDE 74 54 000056-23-5
30 CHRYSENE 74 36 000218-01-9
32 VANADIUM 73 39 007440-62-2
33 NAPHTHALENE 69 38 000091-20-3
33 PHENANTHRENE 69 31 000085-01-8
35 BENZO(B)FLUORANTHENE 64 27 000205-99-2
36 METALS, UNSPECIFIED 63 44 HZ0900-01-T
36 IRON 63 40 007439-89-6
36 ETHYLBENZENE 63 39 000100-41-4
39 XYLENES, TOTAL 62 39 001330-20-7
39 BENZO(K)FLUORANTHENE 62 29 000207-08-9
41 INDENO(1,2,3-CD)PYRENE 58 26 000193-39-5
42 COBALT 55 26 007440-48-4
43 DDT, P,P'- 53 33 000050-29-3
44 PENTACHLOROPHENOL 51 36 000087-86-5
44 DIELDRIN 51 27 000060-57-1
44 DIBENZO(A,H)ANTHRACENE 51 26 000053-70-3
47 1,2-DICHLOROETHENE, TRANS- 50 47 000156-60-5
47 DDE, P,P'- 50 30 000072-55-9
49 SELENIUM 49 23 007782-49-2
50 BENZO(GHI)PERYLENE 48 19 000191-24-2
51 1,2-DICHLOROETHYLENE 47 40 000540-59-0
51 SODIUM 47 33 007440-23-5
51 ALUMINUM 47 31 007429-90-5
54 CHLOROBENZENE 46 34 000108-90-7
55 2-METHYLNAPHTHALENE 44 20 000091-57-6
56 DDD, P,P'- 43 25 000072-54-8
56 THALLIUM 43 20 007440-28-0
56 FLUORANTHENE 43 18 000206-44-0
56 PYRENE 43 18 000129-00-0
60 CYANIDE 42 24 000057-12-5
61 CHLORDANE 39 27 000057-74-9
62 DIBENZOFURAN 38 17 000132-64-9
63 PESTICIDES, UNSPECIFIED 37 23 HZ1200-01-T
63 HEPTACHLOR EPOXIDE 37 17 001024-57-3
65 1,2-DICHLOROETHENE, CIS- 35 28 000156-59-2
65 SILVER 35 17 007440-22-4
67 ACETONE 32 21 000067-64-1
67 MAGNESIUM 32 21 007439-95-4
69 FLUORENE 31 13 000086-73-7
70 2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN 29 23 001746-01-6
70 BROMODICHLOROMETHANE 29 23 000075-27-4
70 ASBESTOS 29 15 001332-21-4
70 ANTHRACENE 29 10 000120-12-7
74 2-BUTANONE 28 21 000078-93-3
74 NITRATE 28 21 014797-55-8
74 DI-N-BUTYL PHTHALATE 28 14 000084-74-2
74 ACENAPHTHENE 28 10 000083-32-9
78 ACENAPHTHYLENE 27 11 000208-96-8
78 CARBAZOLE 27 8 000086-74-8
80 CALCIUM 26 22 007440-70-2
80 AROCLOR 1254 26 17 011097-69-1
80 AROCLOR 1260 26 17 011096-82-5
80 BUTYL BENZYL PHTHALATE 21 7 000085-68-7
84 1,1,2,2-TETRACHLOROETHANE 25 18 000079-34-5
84 1,2-DICHLOROPROPANE 25 18 000078-87-5
84 PHENOL 25 15 000108-95-2
84 STYRENE 25 13 000100-42-5
88 ALDRIN 24 7 000309-00-2
89 CRESOL, PARA- 23 9 000106-44-5
90 1,1,2-TRICHLOROETHANE 22 18 000079-00-5
90 1,4-DICHLOROBENZENE 22 10 000106-46-7
92 HEPTACHLOR 21 6 000076-44-8
93 POTASSIUM 20 16 007440-09-7
93 CHLORODIBROMOMETHANE 20 15 000124-48-1
93 DI-N-OCTYL PHTHALATE 20 12 000117-84-0
93 CHLOROMETHANE 20 11 000074-87-3
93 HEXACHLOROCYCLOHEXANE, GAMMA- 20 11 000058-89-9
93 1,2,4-TRIMETHYLBENZENE 20 2 000095-63-6
99 DIOXINS, UNSPECIFIED 19 14 HZ0400-05-T
99 SEMIVOLATILE ORGANIC COMPOUNDS 19 12 HZ1900-02-T
99 TRANS-CHLORDANE 19 3 005103-74-2

(101 substances are shown because 3 were found at 19 sites and tie for 99th)

Hide this 2001 data.

1999 ATSDR CEP Site Count Report

Hide this 1999 data.

1999 ATSDR CEP Site Count Reportt

2001 ATSDR Substance Priority List
Rank Substance Name All Sites/
Events
NPL Sites CAS RN
1 LEAD 298 206 007439-92-1
2 TRICHLOROETHYLENE 277 239 000079-01-6
3 ARSENIC 215 147 007440-38-2
4 TETRACHLOROETHYLENE 206 167 000127-18-4
5 BENZENE 149 116 000071-43-2
6 CADMIUM 148 105 007440-43-9
7 CHROMIUM 146 102 007440-47-3
8 POLYCHLORINATED BIPHENYLS 130 96 001336-36-3
9 1,1,1-TRICHLOROETHANE 116 97 000071-55-6
9 ZINC 116 75 007440-66-6
9 MANGANESE 116 73 007439-96-5
12 MERCURY 115 74 007439-97-6
13 COPPER 101 61 007440-50-8
14 VOLATILE ORGANIC COMPOUNDS, UNSPECIFIED 99 73 HZ1900-01-T
15 CHLOROFORM 98 81 000067-66-3
16 1,1-DICHLOROETHENE 94 87 000075-35-4
17 METHYLENE CHLORIDE 93 69 000075-09-2
18 TOLUENE 86 60 000108-88-3
19 NICKEL 84 59 007440-02-0
20 BARIUM 82 52 007440-39-3
21 VINYL CHLORIDE 81 75 000075-01-4
22 1,1-DICHLOROETHANE 80 72 000075-34-3
23 1,2-DICHLOROETHANE 77 66 000107-06-2
23 BENZO(A)PYRENE 77 46 000050-32-8
25 ANTIMONY 74 50 007440-36-0
26 POLYCYCLIC AROMATIC HYDROCARBONS 73 55 130498-29-2
27 DI(2-ETHYLHEXYL)PHTHALATE 67 49 000117-81-7
27 CHRYSENE 67 37 000218-01-9
29 BENZO(A)ANTHRACENE 65 39 000056-55-3
30 VANADIUM 63 39 007440-62-2
30 BERYLLIUM 63 34 007440-41-7
32 CARBON TETRACHLORIDE 62 47 000056-23-5
32 NAPHTHALENE 62 37 000091-20-3
34 PHENANTHRENE 61 32 000085-01-8
35 XYLENES, TOTAL 56 38 001330-20-7
36 BENZO(B)FLUORANTHENE 55 28 000205-99-2
37 BENZO(K)FLUORANTHENE 54 30 000207-08-9
38 ETHYLBENZENE 53 36 000100-41-4
39 INDENO(1,2,3-CD)PYRENE 52 26 000193-39-5
40 IRON 50 34 007439-89-6
41 1,2-DICHLOROETHENE, TRANS- 48 46 000156-60-5
42 COBALT 45 25 007440-48-4
42 DIBENZO(A,H)ANTHRACENE 45 25 000053-70-3
44 DDT, P,P'- 44 28 000050-29-3
45 1,2-DICHLOROETHYLENE 43 37 000540-59-0
45 DDE, P,P'- 43 27 000072-55-9
47 ALUMINUM 42 30 007429-90-5
48 SODIUM 41 32 007440-23-5
48 CHLOROBENZENE 41 31 000108-90-7
48 PENTACHLOROPHENOL 41 30 000087-86-5
48 BENZO(GHI)PERYLENE 41 19 000191-24-2
52 METALS, UNSPECIFIED 40 27 HZ0900-01-T
53 SELENIUM 39 20 007782-49-2
53 FLUORANTHENE 39 19 000206-44-0
53 PYRENE 39 19 000129-00-0
56 DIELDRIN 38 22 000060-57-1
57 2-METHYLNAPHTHALENE 36 21 000091-57-6
58 DDD, P,P'- 35 21 000072-54-8
58 DIBENZOFURAN 35 18 000132-64-9
60 CYANIDE 34 24 000057-12-5
61 MAGNESIUM 31 21 007439-95-4
61 THALLIUM 31 17 007440-28-0
63 1,2-DICHLOROETHENE, CIS- 30 25 000156-59-2
63 CHLORDANE 30 22 000057-74-9
65 ACETONE 29 19 000067-64-1
65 HEPTACHLOR EPOXIDE 29 16 001024-57-3
67 2-BUTANONE 28 20 000078-93-3
67 SILVER 28 16 007440-22-4
67 FLUORENE 28 14 000086-73-7
70 ANTHRACENE 27 11 000120-12-7
71 BROMODICHLOROMETHANE 26 22 000075-27-4
71 CALCIUM 26 22 007440-70-2
71 DI-N-BUTYL PHTHALATE 26 15 000084-74-2
74 NITRATE 25 21 014797-55-8
74 ACENAPHTHENE 25 11 000083-32-9
76 2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN 24 18 001746-01-6
76 AROCLOR 1254 24 17 011097-69-1
78 PHENOL 23 14 000108-95-2
78 ACENAPHTHYLENE 23 12 000208-96-8
78 CARBAZOLE 23 9 000086-74-8
81 1,1,2,2-TETRACHLOROETHANE 22 17 000079-34-5
81 BUTYL BENZYL PHTHALATE 22 7 000085-68-7
83 1,2-DICHLOROPROPANE 21 17 000078-87-5
83 AROCLOR 1260 21 13 011096-82-5
83 PESTICIDES, UNSPECIFIED 21 13 HZ1200-01-T
86 1,1,2-TRICHLOROETHANE 20 17 000079-00-5
86 POTASSIUM 20 16 007440-09-7
86 ASBESTOS 20 10 001332-21-4
86 STYRENE 20 10 000100-42-5
90 CHLOROMETHANE 19 11 000074-87-3
90 CRESOL, PARA- 19 10 000106-44-5
92 CHLORODIBROMOMETHANE 17 14 000124-48-1
92 DI-N-OCTYL PHTHALATE 17 12 000117-84-0
92 ALDRIN 17 7 000309-00-2
92 HEPTACHLOR 17 6 000076-44-8
96 1,4-DICHLOROBENZENE 16 8 000106-46-7
97 TRICHLOROETHANE 15 12 025323-89-1
97 1,2,4-TRIMETHYLBENZENE 15 3 000095-63-6
99 HEAVY METALS, UNSPECIFIED 14 12 HZ0900-02-T
99 BORON 14 10 007440-42-8
99 CHROMIUM, HEXAVALENT 14 9 018540-29-9
99 DIOXINS, UNSPECIFIED 14 9 HZ0400-05-T
99 HEXACHLOROBENZENE 14 9 000118-74-1
99 CARBON DISULFIDE 14 8 000075-15-0

(104 substances are shown because 6 were found at 14 sites and tie for 99th)

Hide this 1999 data.

 

Full CEP Report Data - A spreadsheet with CEP Report detail in a filterable numeric format along with additional supporting information. This listing includes all candidates for all years that the CEP Report has been produced; thus it includes all substances that have ever appeared in a CEP in ATSDR site documents.

 

Contact Information

Further information can be obtained by contacting the ATSDR Information Center at:

Agency for Toxic Substances and Disease Registry
Division of Toxicology and Human Health Sciences
1600 Clifton Road NE, Mailstop F-57
Atlanta, GA 30333
Phone: 1- 800-232-4636 / TTY: 888-232-6348
Email: cdcinfo@cdc.gov

Top of Page

 
Contact Us:
  • Agency for Toxic Substances and Disease Registry
    4770 Buford Hwy NE
    Atlanta, GA 30341
  • 800-CDC-INFO
    (800-232-4636)
    TTY: (888) 232-6348
    Contact CDC-INFO
  • New Hours of Operation
    8am-8pm ET/Monday-Friday
    Closed Holidays
USA.gov: The U.S. Government's Official Web PortalDepartment of Health and Human Services
Agency for Toxic Substances and Disease Registry, 4770 Buford Hwy NE, Atlanta, GA 30341
Contact CDC: 800-232-4636 / TTY: 888-232-6348

A-Z Index

  1. A
  2. B
  3. C
  4. D
  5. E
  6. F
  7. G
  8. H
  9. I
  10. J
  11. K
  12. L
  13. M
  14. N
  15. O
  16. P
  17. Q
  18. R
  19. S
  20. T
  21. U
  22. V
  23. W
  24. X
  25. Y
  26. Z
  27. #