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Off-site Sampling PFOA Concentrations
I T- Sample ID
Decatur, AL
verage PFOA (ppb)
Location in Relation to 3M Decatur Facility
S il Samples
DAL-SB-603R-0-0000 DAL-SB-603R-0-0005 DAL-SB-603R-0-0010 DAL-SB-603R-0-0050
DAL-SB-603R-0-0100 DAL-SB-603R-DB-0100
NR 4 .03 5.06 3.71
1 .275 0.963
Southwest
DAL-SB-604R-0-0000 DAL-SB-604R-0-0005 DAL-SB-604R-0-0010 DAL-SB-604R-0-0050
DAL-SB-604R-0-0100 DAL-~SB-605R-0-0000 DAL-SB-605R-DB-0000 DAL-SB-605R-0-0005
DAL-SB-605R-0-0010 DAL-SB-605R-0-0050 DAL-SB-605R-0-0100
DAL-SB-138R-0-0000 DAL-SB-138R-0-0005 DAL-SB-138R-0-0010
DAL-SB-138R-0-0050 DAL-SB-138R-0-0100 DAL-SB-138R-DB-0100 DAL-SB-602R-0-0000 DAL-SB-602R-0-0005
DAL-SB-602R-0-0010 DAL-SB-602R-0-0050 DAL-SB-602R-0-0100 DAL-SB-601 R-0-0000 DAL-SB-601 R-DB-0000 DAL-SB-601 R-0-0005 DAL-SB-601 R-0-0010 DAL-SB-601 R-DB-0010 DAL-SB-601 R-0-0050 DAL-SB-601 R-0-0100 DAL-SB-601 R-DB-0100
2~29 3.75 1 .54 5.615
0.356 7.905 7.795 7.64
2 .985 1 .02
0 .8555 28 .35
53 44 .05
104 311 .5 308 .5 6 .345
6.82 3.635 0.72 0.613 1 .93 2.095 1 .89
NR 1 .905 1 .1575
0.4575 0.442
Groundwater Samples
South East Eastern boundary of facility West West
DAL-GW-138L-0-060411 DAL-GW-138R-0-060412 DAL-GW-138S-0-060412
0.232 NR NR
Eastern boundary of facility
DAL-GW-605R-0-060412
0.0881
DAL GW 605L 0 060412 ~
ND
I
East I
'Average PFOA (ppb) = ng/mL for aqueous samples, nglg for solid samples .
NR = Not reported due to quality control failure . ND = Not detected at or above Limit of Quantitation (LOQ) - 25 ng/L for aqueous samples, 0.2 ng/g for solid samples .
P:\Projects\CTRS_TSCA 8(e)\Coordinator Files\Sent 8(e) Letters\Sent 2008\Decatur offsite PFOA\Off-site PFOA Concentrations summary tables-As
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Off-site Sampling PFOA Concentrations (Cont.) Decatur, AL
Sample ID
DAL-GW-603S-0-060412 DAL-GW-603R-0-060413 DAL-GW-603L-0-060413 DAL-GW-601 R-0-060413 DAL-GW-601 S-0-060413 DAL-GW-601 L-0-060413 DAL-GW-602R-0-060413 DAL-GW-602S-0-060413 DAL-GW 602L-0-060413 DAL-GW-604R-0-060413 DAL-GW-604L-0-060412 DAL-GW-604S-0-060412 DAL-GW-BPWELL-0-060413
DAL-SW-BPP01-0-060413 DAL-SW-BPP02-0-060413 DAL-SW-BPP03-0-060413 DAL-SW-BCT01-0-060412 DAL-S W-BCT02-0-060412 DAL-SW-BCT03-0-060412 DAL-SW-BC01-0-060412 DAL-SW-BC02-0-060412 DAL-SW-BC03-0-060414 DAL-SW-BC04-0-060414 DAL-SW-BC05-0-060414
DPWS~-PW-FW03-0-060301
WM EL-PW-FW03-0-060301 MSTP--PW-FW03-0-060301 FWTP-PW-FW03-0-060301 TVATP-PW-FW03-0-060301 SWTP-PW-FW03-0-060301
DPWS-WWI-DCTP01-0-060413 DPWS-WWE-DCTP01-0-060413
DPWS-SL-DCTP01-0-0000 DAL-WW-EFF01-0-060413 DAL-LCH-MCLF01-0-060414
Average PFOA* I
Location in Relation to 3M Decatur Facility
(ppb)
Groundwater Samples Cont.
0 .343 0.557
Southwest
0.146
0.107 0.121
West
19 .8
0 .591 0.548
West
2.94
0.710 1 .59
South
0 .973 641
West
526 249 277
29 .0 128 25 .8 0.106 0.133 2.52 27 .7 0.782
Surface
Water
Samples
West West West West
South South South
Southeast East East East
ND
0.155 0.0426 0.0433 0.0394 0.0419
Public
Water Samples East - Decatur Public Water System
West - West Morgan 1 East Lawrence Counties Public System
West - Muscle Shoals Public Water System West - Florence Public Water System West - TVA Water System West - Sheffield Public Water S stem
Water
4.27 7.08 1875
4.63 48 .7
Wastewater Samples East - Decatur D East -Decatur D
East - Decatur D
Creek Wastewater Treatment Plant Creek Wastewater Treatment Plant Creek Wastewater Treatment Plant
On-site
West- Mor an Count Landfill
*Average PFOA (ppb) = ng/mL for aqueous samples, ng/g for solid samples .
NR = Not reported due to quality control failure . ND = Not detected at or above Limit of Quantitation (LOQ) - 25 ng/L for aqueous samples, 0 .2 ng/g for solid samples .
P:\Projects\CTRS_TSCA 8(e)\Coordinator Files\Sent 8(e) Letters\Sent 2006\Decatur otfsite PFOA\OH-site PFOA Concentrations summary tables.xls