Document 7M41ZxkMNwv7yOw3d8v025ErV

bkX&(>-2-74 LITTLE HOCKING WATER ASSOCIATION, INC. 3998 St. Rt. 124 P.O. Box 188 Little Hocking, OH 45742 (740) 989-2181 Fax (740) 989-5543 Website: www.littlebockingwater.org FfT - 0*70^- o / y Dr. Charles M. Auer U.S. EPA 1201 Constitution Avenue, N.W. Room 3166A Washington, DC 20004 Jennifer Seed U.S. EPA 1201 Constitution Avenue, N.W. Room 6334A Washington, DC 20004 Mary Ellen Weber U.S. EPA 1201 Constitution Avenue, N.W. Room 5 124A Washington, DC 20004 Mary Dominiak U.S. EPA 1201 Constitution Avenue, N.W. Room 441 OS Washington, DC 20004 84050000020 S 40 0 0 0 t> '0 ^ ab Re: Perfluorinated Compound Exposure Data For Littfr HnfidnT Wtrr 2SlittUl*JfihA2llLb13 Ladies and Gentlemen: rCcC-ZrJo>*^ I am the General Manager for the Little Hocking Water Association, Inc. ("Little ^ o -o Hocking"). Because o f the threats to human health and the environment from PFOA r"" 1^7 ("C8") and related compounds - and in light of the Science Advisory Board's recent draft cn C report describing C8 as a "likely" human carcinogen - Little Hocking is providing a 5 summary of blood sampling data from 25 individuals whose residential water is supplied - - * r_ by Little Hocking. no c.n ST CONTAIN NO CP' 3 %7 ok U.S. EPA July 13, 2005 Page 2 As you know, E. I. du Pont de Nemours and Company ("DuPont") owns and operates the DuPont Washington Works Plant in Parkersburg, West Virginia, across the Ohio River from the Little Hocking well field. DuPont uses, releases and/or disposes of perfluorinated compounds - including C8 - at its Washington Works Plant. Little Hocking's wells contain the highest levels of C8 found in any public water supply in the country to date. The level of C8 in water entering the distribution system to our members has been measured as high as 7.2 parts per billion (ppb). Sampling results for Little Hocking's individual wells have shown levels o f C8 as high has 18.6 ppb (production well no. 5); 3.90 ppb (production well no. 3); 9.89 ppb (production well no. 2); and, 9.03 ppb (production well no.l). Recognizing the threats to human health (including that o f Little Hocking members) from C8 and related compounds, Little Hocking paid for blood sampling o f the 25 individuals referred to above (the blood samples were arranged for, obtained, analyzed, and paid for with no assistance from or involvement by DuPont). We are providing a summary of the Little Hocking blood data to you (see Attachment A) for inclusion in the U.S. EPA's Administrative Record 226 and OPPT-2003-0012. Additionally, we are providing the blood data summary to you to ensure compliance with any legal obligations Little Hocking may have under the reporting requirements of Section 8 o f the Toxic Substances Control Act. The participants' blood serum was tested for PFOA and PFOS, as well as for a suite of other perfluorinated compounds (a table identifying the names and molecular formulas for each compound in the suite is attached as Attachment B). The blood analyses were performed and the results were provided by Axys Analytical Services, LTD, located in Canada. For privacy considerations, the results summary does not include the names, addresses, or specific ages o f the participants. Sincerely yours, LITTLE HOCKING WATER ASSOCIATION, INC. Robert L. Griffin, P.E. General Manager Enclosures Cc: Sarah Wallace, OEPA SEX AGE F 46-55 M 46-55 F 46-55 F 26-35 M <15 F >65 M 36-45 F 36-45 M 56-65 F 26-35 F 26-35 M <15 F <15 M 26-35 M 36-45 F 46-55 M 46-55 F >65 M >65 M 36-45 F 36-45 M 56-65 M 26-35 F 16-25 M >65 I | ATTACHMENT A Summary of Little Hocking W ater Association, Inc. Member Blood Testing Results May, 2005 I PFPeA PFHxA PFHpA PFNA <2.06 <2.06 <2.06 <2.06 <2.06 <2.06 <2.06 <2.06 <2.06 <2.06 <2.06 <2.06 <2.06 <2.06 <2.06 <2.06 <2.06 <2.06 <2.06 <2.06 <2.06 <2.06 <2.06 <2.06 <2.06 <0.206 <0.206 <0.206 <0.206 <0.206 <0.206 <0.206 <0.206 <0.206 <0.206 <0.206 <0.206 <0.206 <0.206 <0.206 <0.206 <0.206 <0.206 <0.206 <0.206 <0.206 <0.206 <0.206 <0.206 <0.206 1.26 1.16 0.701 0.534 15.3 2.88 0.36 1.43 2.39 0.296 1.08 1.3 4.19 0.428 1.13 1.57 4.62 1.65 0.692 2.99 1.78 0.477 0.919 2.11 1.05 1.66 3.16 2.16 1.25 3.29 2.37 1.89 0.899 2.29 0.688 0.438 1.56 2.51 1.54 1.76 1.29 0.91 2.64 1.8 4.19 1.66 2.36 1.76 1.61 1.54 PFDA 0.306 2.63 0.23 0.964 0.397 0.207 0.471 0.234 0.377 <0.204 <0.204 0.27 0.35 0.23 0.274 <0.204 <0.204 0.476 <0.204 0.562 0.316 0.627 1.74 <0.204 <0.204 PFUnA PFDoA PFTA <0.210 1.68 <0.210 0.536 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 1.04 <0.210 <0.210 <0.200 <0.200 <0.200 <0.200 <0.200 <0.200 <0.200 <0.200 <0.200 <0.200 <0.200 <0.200 <0.200 <0.200 <0.200 <0.200 <0.200 <0.200 <0.200 <0.200 <0.200 <0.200 <0.200 <0.200 <0.200 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 <0.210 PFBS <0.117 <0.117 <0.117 <0.117 <0.117 <0.117 <0.117 <0.117 <0.117 <0.117 <0.117 <0.117 <0.117 <0.117 <0.117 <0.117 <0.117 <0.117 <0.117 <0.117 <0.117 <0.117 <0.117 <0.117 <0.117 PFHxS 8.89 4.29 2.09 10.9 74.2 3.64 3.81 1.01 4.46 0.5 0.445 4.55 4.63 2.82 5.65 2.66 3.01 4.59 5.19 8.68 1.87 2.65 19.2 21.3 5.29 Years on W ater 28 51 55 27 3 35 35 9 34 4 6 4 3 4 25 33 33 25 20 37 35 16 24 16 34 t ATTACHMENT B Compound Perfluorobutylsulfonate anion Perfluorohexanesulfonate anion Perfluorooctanesulfonate anion Perfluoropentanoic acid anion Perfluorohexanoic acid anion Perfluoroheptanoic acid anion Perfluorooctanoic acid anion Perfluorononanoic acid anion Perfluorodecanoic acid anion Perfluoroundecanoic acid anion Perfluorododecanoic acid anion Perfluorotetradecanoic acid anion Acronym PFBS PFHxS PFO S PFPeA PFHxA PFHpA PFO A PFNA PFDA PFUnA PFDoA PFTA Molecular Formula C4F9SO3 C 6F 13 S O 3 CBF17S03 C4F9COOC5F11CO O C6F13CO O c 7f 15c o o - C8F17CO O C 9F 19C O O C10F21CO O C11F23CO O C13F27CO O