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Mr. James C. Cox LubefiK PuNte Swvice District P.O.B(B(.700 WS8(iin^<n,WV2618l
RE: LPSD Water sample Analytical Results
Dear Mr. CCBC ABached are oaptes of the analytical results for water samples taken on August 14.2001 from three LPSD
wftfls and the IP8D Boildlnfl 1 nifllii water line. As reported In ttw quality control portion of the analytical (rMepSo/rMtsS, tOh)erHecHo-vP&FtyUaAreanodutPsiFdDe DthAe squuraroligtyatceonctercool vliemnietss. anTdo tIhmepmroevtheoIhdeS(aaKa(>raan<dym(reftthhoeda$npailkyestdsufpotrethtee
presence of ammonium pertluorooctanoate (C-8) in water, DuPortt has been assesdng a|(ematu wialytical proeedufte, DuPont has ateo been Investtgafiftg new saropfing procedures to assure more accurate results. Through thfe assessment and investigation, Dupont ha fdeBttBed a new analytical roathod that should (wvxte greater precision and accuracy for data that te genemed. We have also revised the sampling WWWSSAto ftnpreve the quality of data. DuPofll Intends to implement the revised sampling protocol and new analytical procedure for our collection and analysis of ftrtare samples from LPSD.
Based on (he Improved accuracy of the new analyfical procedure, our work to date suggests that the new method may yield resulls that show concentrations of 0-8 sionificanOyabove levels that have been most recently reported and atwia DuPenPs community exposure guidelines (C66'). Actual concentrations of
samples xraing the nw protocol aid procedure cannot be estimated at this time. Exposures above the
CE6. howevfef. would bs Bk(y to result in eonstdwably (ess exposure than occurs with employees who make or us C-8. EpKtemlotoflfcal studies on those worker population? have not demonstrated any adveise health effects attetbulable to 0-8. Th& CEG Incorporates mutlipte eonseivaBve assumptions and therefore il should not assumed that an exposure to 0-8 at levels above She CB<3 B necessarily unsafe. U you have any questions or need additional Infonnatkin, please contact me at S04-863-4271.
Sincerely,
/t^^^ R. L RHdiay
6r. EmAonroenlal Control Consultant Washington Wodts
RLR/gwdsw Attachments cc William J,<Sibbs
Lubeck pubifc Sefvjcg District P.O. BOX 700
Washington. WV 26181
600^0?L.
EXHIBIT
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