Document gaBEoZpG8qVDMmdpkKdBoEJaJ
r/T+0c::2
QW,
June 4, 200 8
p. 1 ~
DuPont Haskell Global Center s for Health and Environmental Sciences 1090 Elkton Road, P .O . Box 50 Newark, DE 19714-005 0
Via Federal Express
Document Processing Center (Mail Code 7407M)
c ._
Room 642 8
Attention : 8(e) Coordinato
rOfficeofPolutionPreventionandToxic s
U .S . Environmental Protection Agency
1201 Constitution Ave ., N
Washingto,DC204
, .,
Dear 8(e) Coordinator :
Re: Perfluorooctanoic Acid (PFOA) Updated Occupational Serum Sampling Chambers Works Facility, Deepwater, New Jersey 8EHQ-6-16446/8EHQ-06-1666 3
Please find attached updated occupational PFOA serum sampling results for workers at the above referenced DuPont site for December 2007 . The levels of PFOA reported with this submission are generally corroborative of previously reported levels in an occupational setting . This information is provided to the TSCA 8(e) office in view of the Agency's continued interest in perfluorinated substances and as a precautionary measure .
Sincerely,
A. Michael Kaplan, Ph .D . Director - Regulatory Affairs
I~8 !il iI~II~!Ili1I Ii1~ IIIkll I ~I!~IIJ I
E [A
4
AMK/AVM/BJD : cl p
!I~!iI~'I~ ;l ! i ~ Ii ll (302) 366-5260
Attachment (11 pages) t 9 0 e ~ ~
~ 1 1[~~ 11,1111 ! i
Ro~rr~s NO c81
p. 2
DuPont Compan y Chambers Works, Deepwater, NJ
Serum PFOA Results
Sample Group Dec .2007 Sample Group Dec .2007 Sample Group Dec .2007
Number Number p b Number Number (ppb)
Number Number
(ppb)
1
Group 1 52 37 Group 2 380 65 Group 4 10 5
2
Group 1 9 38 Group 2 645 66 Group 4 139
3
Group 1 13 39 Group 2 179 67 Group 4 148
4
Group 1 11 40 Group 2 186 68 Group 4 95
5
Group 1 11 41
Group 2 245 69 Group 4 113
6
Group 1 4 42 Group 2 92 70 Group 4 77
7
Group 1 9 43 Group 2 76 71
Group 4 38
8 Grou 1 12 44 Group 2 185 72 IGroup 4 69
9
Group 1 6 45 Group 2 154 73 Group 4 69
10 Group 1 4 46 Group 2 139 74 Group 4 38
11 Group 1 9 47 Group 2 40 75 Group 4 44
12 Group 1 46 48 Group 2 105 76 Group 4 34
13 Group 1 5 49 Group 2 73 77 Group 4 36
14 IGroup 1 6 50 Group 2 46 78 Group 4 20
15 IGroup 1 65 51 Group 2 471 79 Group 4 24
16 IGroup 1 8 52 Group 2 159 80 Group 4 33
17 Group 1 7 53 Group 2 161 81 Group 4 38
18 Group 1 3 54 Group 3 66 82 Group 4 28
19 Group 1 6 55 Group 3 50 83 Group 4 18 20 Group 1 3 56 Group 3 23 84 Group 4 14
21 Group 1 25 57 Group 3 17 85 Group 4 8
22 Group 1 20 58 23 G roup 1 23 59
Group 3 121 86 Group 3 20 87
Group 4 15 Group 4 13
24 Group 1 11 60 Group 3 24 88 Group 4 15
25 Group 1 17 61 Group 3 6 89 Group 4 105 26 Group 1 8 62 Group 3 2 90 Group 4 72 27 Group 1 14 63 Group 3 7 91 Group 4 45
28 Group 1 10 64 Group 3 7 92 Group 4 31 29 Group 1 10 93 Group 4 10
30 Group 1
5
94 Group 4 20
31 Group 1
7
95
32 Grou 1 44 96
Group 4 3 Group 4 34
33 Group 1
8
97 Group 4 63
34 Group 1
3
35 Group 1 24
36 Group 1 12
Number o f
Samples 97
Average
60
Median 24
Minimum 2
Maximum 645
Standar d
Deviation 96
Samples analyzed by Axys Analytical Ltd ., Sidney, British Columbia, Canad a Results rounded to nearest whole number Barbara J . Dawson, CIH, CSP
DuPont Company p . 3 Chambers Works, Deepwater, N J Group 1 - Serum PFOA Results - Comparison over Tim e
Sample 1998 2000 2002 2004 2005 2006 Dec .2007
Number b
(ppb) (ppb) (ppb) (ppb) (ppb) (ppb)
1
36
52
2
15
9
3
13
4
11
5
11
6
14
4
7
9
9
8
12
9
6
10
7
4
11
10
9
12
46
13
11
6
5
14
15
9
6
15
<LLQ
15
65
16
14
8
8
17
7
7
18
4
3
3
19
6
20
3
21
53
57
32
25
22 <LLQ <LLQ 56 31 20
23
<LLQ
24
23
24
15
11
25 <LLQ <LLQ <LLQ 15 17
26
8
8
8
27
14
28
12
11
10
29
12
8
10
30
5
4
5
31
7
32
45
44
33
8
8
34
3
35
24
36
6
12
Number o f
Samples Average Median Minimum
Maximum Standard Deviation
2 2 5 8 2 23 36
<LLQ <LLQ 55 15 13 15 15
<LLQ <LLQ 55 10 13 10 1 0
<LLQ <LLQ <LLQ
11 3 3
<LLQ <LLQ 56 15 45 65
2 !1 7 11 1 5
results prior to 2007 previously submitted to EP A
2007 samples analyzed by Axys Analytical Ltd ., Sidney, British Columbia, Canad a Results rounded to nearest whole number Barbara J . Dawson, CIH, CSP
p. 4
DuPont Company Chambers Works, Deepwater, N J Group 2 - Serum PFOA Results - Comparison over Tim e
Sample 1998 2000 2002 2004 2005 2006 Dec .2007
Number (ppb) (ppb) (ppb)
p b
(ppb) (ppb)
p b
37
720
748
380
38
611
645
39
355
179
40
300
251
186
41
185
190
245
42
181
181
92
43
13
76
44
224
355
185
45 46 47
318
154
249
139
<LLQ
40
40
48
158
168
105
49
86
109
73
50
44
46
46
51 <LLQ 1130 1200 861 471
52 <LLQ 347 412 306 159
53 <LLQ <LLQ 297 441 256 161
Number o f
Samples Average Median Minimum Maximum Standard Deviation
1 4 3 11 1 16 17 <LLQ <LLQ 591 344 181 315 196
<LLQ <LLQ 347 224 181 254, 159 <LLQ <LLQ 297 13 181 40 40 <LLQ <LLQ 1130 1200 181 861 645
467, 351,
236 161
results prior to 2007 previously submitted to EP A
2007 samples analyzed by Axys Analytical, Ltd . Sidney, British Columbia, Canad a Results rounded to nearest whole number Barbara J . Dawson, CIH, CSP
p. 5
DuPont Compan y Chambers Works, Deepwater, N J Group 3 - Serum PFOA Results - Comparison over Time
Spring Fall Spring
Sample 2002 2004 2004 2006 2007 Dec . 2007
Number
(ppb) (ppb) (ppb) (ppb) (ppb) (ppb)
54
111
81
66
55
50
56
14
23
57
17
58 313 252 121
59 684 31 27 20
60
18
61
62
24 6 2
63 64
7 7
Number o f
Samples Average Median Minimum Maximum Standard Deviation
1 2 1 4 1 11 313 398 31 95 14 31 313 398 31 54 14 22 313 111 31 18 14 2 313 684 31 252 14 121
405 109 37
results prior to Dec . 2007 previously submitted to EPA
2007 samples analyzed by Axys Analytical, Ltd . Sidney, British Columbia, Canad a Results rounded to nearest whole number Barbara J . Dawson, CIH, CSP
p. 6
DuPont Compan y Chambers Works, Deepwater, N J Group 4 - Serum PFOA Results - Comparison over Time
Spring
Sample 2000 2002 2004 2006 2007 Dec .2007
Number (ppb) (ppb) (ppb) (ppb) (ppb) (ppb )
65
211
105
66 242 174 139
67
140
148
68
137
95
69 143 127 113
70 134
71
<LLQ
72
49
112 77
83 38
74
69
73
66
69
74
48
62
38
75
58
44
76 <LLQ 41 34
77 <LLQ 39 36
78 79 80
32 31 31
20 24 33
81
25
38
82
22
28
83
17
17
18
84 85 86
15 13
11
14 8
15
87
16
11
13
88
9
15
89 137 163 99 105
90
91
92
60
72
45
46
31
93
10
94
22
20
95
3
96 97
34 63
Number of Samples Average Median Minimum Maximum
Standard Deviation
1 5 8 25 1 33 <LLQ 146 77 63 99 49 <LLQ 137 49 39 99 36 <LLQ <LLQ 16 9 99 3 <LLQ 242 163 211 99 148
91 60 57 40
results prior to Dec 2007 previously submitted to EP A
2007 samples analyzed by Axys Analytical Ltd ., Sidney, British Columbia, Canad a Results rounded to nearest whole number Barbara J . Dawson, CIH, CSP
p. 7
DuPont Company Performance Elastomers, Chambers Works, Deepwater, NJ
2007 Serum PFOA Results
Sample 2007 Result Number Group Tested (ppb)
1 Group 1 271 2 Group 1 4 3 Group 1 185 4 Group 1 303 5 Group 1 6 6 Group 1 22 7 Group 1 36 8 Group 1 358 9 Group 1 55 10 Group 1 16 11 Group 1 78 12 Group 1 25 13 Group 1 1230 14 Group 1 668 15 Group 1 21 16 Group 1 16 17 Group 2 1610 18 Group 2 624 19 Group 2 1600 20 Group 2 1215 21 Group 2 1585 22 Group 2 399 23 Group 2 157 0 24 Group 2 1970 Number of Samples 46 25 Group 3 522 Average 868 26 Group 3 281 Median 292 27 Group 3 236 Minimum 4 28 Group 3 46 Maximum 4400 29 Group 3 77 Standard Deviation 1134 30 Group 3 187 31 Group 3 55 32 Group 4 305 33 Group 4 2990 34 Group 4 3220 35 Group 4 4090 36 Group 4 143 37 Group 4 1990 38 Group 4 162 39 Group 4 4400 40 Group 5 1440 41 Group 5 1850 42 Group 5 100 43 Group 5 192 44 Group 5 2870 45 Group 5 633 46 Group 5 27 5
Samples analyzed by Axys Analytical, Ltd ., Sidney, British Columbia, Canad a Results rounded to nearest whole number Barbara J . Dawson, CIH, CSP
p. 8
DuPont Compan y Performance Elastomers, Chambers Works, Deepwater, NJ
Group 1 - Serum PFOA Results - Comparison over Time
Sample 2004* Result 2006* Result 2007 Resul t
Number
( ppb) (ppb) (ppb)
1
271
2
4
3 580 444 185
4 615 303
5
6
6 7
16 64
22 36
8
358
9
55
10
16
11
78
12
25
13
1230
14 15
668 21
16
16
Numbe r of Samples 1 4 16
Average 580 285 206 Median 580 254 46 Minimum 580 16 4
Maximum 580 615 1230 Standard Deviation 2 9 2 32 9
>ults previously submitted to EP A
2007 samples analyzed by Axys Analytical, Sidney, British Columbia, Canad a Results rounded to nearest whole number Barbara J . Dawson , CIH, CSP
p. 9 DuPont Compan y Performance Elastomers, Chambers Works, Deepwater, NJ Group 2 - 2007 Serum PFOA Results
Sample 2007 Result Number (ppb)
17 1610 18 624 19 1600 20 1215 21 1585 22 399 23 1570 24 1970 Numbe r of Samples 8 Average 1322 Median 1578 Minimum 399 Maximum 1970 Standard Deviation 543
Samples analyzed by Axys Analytical, Sidney, British Columbia, Canada Results rounded to nearest whole numbe r 2007 was the first time this group participated in the monitoring Barbara J . Dawson, CIH, CSP
DuPont Compan y Performance Elastomers, Chambers Works, Deepwater, NJ
Group 3 - Serum PFOA Results - Comparison over Time
P . 10
Sample 2006* Result 2007 Resul t
Number
(ppb) (ppb)
25 522
26 458 281
27 236
28
46
29
77
30 187
31
55
Numbe r of Samples 1 7
Average 458 201
Median 458 187 Minimum 458 46 Maximum 458 522 Standard Deviation 169
*2006 result previously submitted to EPA
2007 samples analyzed by Axys Analytical, Sidney, British Columbia, Canad a Results rounded ot nearest whole number Barbara J . Dawson, CIH, CSP
DuPont Compan y Performance Elastomers, Chambers Works, Deepwater, NJ
Group 4 - Serum PFOA Results - Comparison over Time
P . 11
Sample 2006* Result 2007 Result Number (ppb) (ppb)
32 305 33 2990 34 1640 3220 35 1700 4090 36 143 37 1990 38 162 39 4400
Numbe r of Samples 2 8 Average 1670 2163 Median 1670 2490 Minimum 1640 143 Maximum 1700 4400 Standard Deviation 42 1776
*2006 results previously submitted to EP A
2007 samples analyzed by Axys Analytical Ltd ., Sidney, British Columbia, Canad a Results rounded to nearest whole number Barbara J . Dawson, CIH, CSP
DuPont Company Performance Elastomers, Chambers Works, Deepwater, NJ
Group 5 - Serum PFOA Results - Comparison over Time
p . 12
Sample 2004* Result 2006* Result 2007 Resul t Number (ppb) (ppb) (ppb)
40 1280 2990 1440
41 4380 1850
42 167 100
43
192
44
2870
45
633
46 316 275
Numbe r of Samples 1 4 7
Average 1280 1963 1051 Median 1280 1653 633 Minimum 1280 167 100 Maximum 1280 4380 2870 Standard Deviation 2068 1042
*2004 and 2006 results previously submitted to EPA
2007 samples analyzed by Axys Analytical, Ltd ., Sidney, British Columbia, Canad a Results rounded to nearest whole number Barbara J . Dawson, CIH, CSP
