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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)

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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.

 

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