Document 7Nx4Z3RRZ0OkkQo5vvkEXwpB

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.littlehockingwater.org July 13, 2005 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 5124A Washington, DC 20004 Mary Dominiak U.S. EPA 1201 Constitution Avenue, N.W. Room 441 OS Washington, DC 20004 AR226-3561 Re: Perfluorinated Compound Exposure Data For Little Hocking Water Association, Inc. Members Ladies and Gentlemen: I am the General Manager forthe Little Hocking Water Association, Inc. ("Little Hocking"). Because ofthe threats to human health and the environment from PFOA ("C8") and related compounds -- and in light ofthe Science Advisory Board's recent draft report describing C8 as a "likely" human carcinogen -- Little Hocking is providing a summary of blood sampling data from 25 individuals whose residential water is supplied by Little Hocking. 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 WashingtonWorks Plant. Little Hocking's wells contain the highest levels of CS 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 of 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.1). Recognizing the threats to human health (including that ofLittle Hocking members) from C8 and related compounds, Little Hocking paid for blood sampling ofthe 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 ofthe 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 ofthe 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 ATTACHMENT A PFOA Summary of Little Hocking Water Association, Inc. Member Blood Testing Results May, 2005 (results in ppb) PFOS PFPeA PFHxA PFHpA PFNA PFDA PFUnA PFDoA PFTA 281 121 395 83.9 248 23.2 228 34.5 629 73.3 442 42 220 30.7 112 10 532 49.3 116 9.46 211 5.15 268 35.7 436 39.7 216 35.1 325 37.2 475 11.1 432 14 358 91.1 346 52.2 1040 33.3 240 25.9 204 35.1 176 86.2 488 45.1 238 30.5 <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 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 <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 Water 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 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 PFOS PFPeA PFHxA PFHpA PFOA PFNA PFDA PFUnA PFDoA PFTA Molecular Formula C4F9SO3C6F13SO3C8F17SO3C4F9COOC5F11COOC6F13COOC7F15COOC8F17COOC9F19COOC10F21COOC11F23COOC13F27COO-