Document g2vvON580QYaLrJ1yYk6OZZOJ

AR226-1399 \ \ T. A. Foster MS.&6- 1 A August 29, 1984 PERSONAL AND CONFIDENTIAL TO: J. A. SCHMID FROM: J. F,, DOUGHTY ' CIS(UMMMMAAORY OF C-8 IN WATER SAMPLING PROGRAM This letter summarizes the sampling procedure and the results of the pro gram to obtain C-8 concentration data for drinking water down river from the plant. The original set of samples were taken on.March 15, 1984. A second set of samples was taken at selected locations on dune 4, 1984. The samples were taken by going to gas stations or small grocery stores in communities down stream of the plant and asking to have a plastic jug filled with drinking water. The sample obtained was then transferred to 8 oz. glass bottles. Two bottles were obtained. One bottle was used for analysis and the second was used as a retainer for future use if needed. Samples were also obtained up river to check for a background or blank and to insure that the samples were not being contaminated in the sampling procedure. The original plan was to have the samples analyzed here on plant by a modification of the procedure used to determine C-8 in air. To get sensi tivity below the concentration calculated for dilution of C-8 emissions by the river flow, a sample size of 100 ml was freeze dried. The subsequent analysis produced high and inconsistent blanks and data. When the analyti cal problems could not be resolved on plant, the samples were sent to the Experimental Station for analysis by a modification of the C-8 in blood procedure. The details of the analytical procedure are given in the at tached letter from S. R. Laas to J. F. Doughty. The table below shows the locations of the samples taken on 3/15/84, the sample designation, and any comments. SAMPLE Parkersburg Washington Works Distribution Center of Parkersburg DESIGNATION P ww D COMMENTS Taken from my home. Taken from drinking fountain. Private well back 0 0 0 1 8 9 from river. EID079096 R/ZOoo;j 1 SCHMID N* -2- AUGUST 29, 1984 SAMPLE Powell's Store Washington, WV Mason's Village Mkt Little Hocking, Ohio DESIGNATION WB L COMMENTS Thought to represent Lubeck water. Oiler Exon Belleville, WV Reeds Country Store Reedsville, Ohio B Private well RD Randy's Amoco Route 68 Ravenswood, WV RW Gulf Station Racine, Ohio R Known to be city water. Gulf Station Route 2 Point Pleasant, WV PP Sohio Station past bridge to WV Gallipoli's, Ohio G First community to take water directly from the river. The table below shows the locations of the samples taken on 6/4/84, the sample designation, and any comments. SAMPLE Du Pont DESIGNATION WW Powel1's General Store Washington, WV Lubeck Pennzoil Lubeck, WV Mason's Village Mkt Little Hocking, Ohio WB LB L COMMENTS Taken from drinking fountain. In middle of Lubeck HZ 6007 ni The attached letter to J. A. Schmid from J, F. Doughty summarizes the data and the location of the samples in relation to the plant. Note that the original value for the Little Hocking sample should be changed to 0.6 in stead of 0.8. This change is made by hand in the letter attached. JFDoughty:0072t Attachments v EID079097 000190. PERSONAL AND CONFIDENTIAL CC: T. A. Foster June 14,1984 TO: J. A. Schmid FROM: . F . Doughty . UPDATE on C-8 IN WATER SAMPLES The attached table shows the C-8 in water data including the most recent data. I conclude the new data confirm the original data. 1. The Du Pont data shows that the test does not see C-8 up river and the sampling system does not contaminate the sample. 2. T h e second Washington sample had essentially the same C-8 content as the first. 3. The n e w Lu b e c k sample shows essentially the sane concentration as the W a shington sample. Thus the Washington sample is from the Lubeck Water System as I suspect or at least the Lubeck system has the same concentration. 4. T h e original Little Hocking sample was very close to the detection limit for the test. The concentration now appears to be below the detection limit. I do not plan to do additional sampling unless further information is needed. The concentrations are very low and in my judgement are not cause for concern. E1D079098 000191 C-8 IN WATER (3/15/84) and (6/4/84) LOCATION DISTANCE (MILES) SIDE ppb C-8*** PARKERSEURG ~ DU PONT 3715/84) (6/4/84) DISTRIBUTION CENTER OF PARKERSBURG WASHINGTON (3/15/84) (6/4/84) LUBECK (6/4/84) LITTLE HOCKING (3/15/84) (6/4/84) BELLEVILLE REEDSVILLE RAVENSWOOD RACINE POINT PLEASANT ** GALLIP0LIS 7.5 up stream 0.5 up stream WV m 0.25 down stream* wv 0.25 down stream HV 9 0.25 down stream KV 3 down stream OHIO 12 down stream 14 down stream 29 down stream 50 down stream 74 down stream 79 down stream HV OHIO HV OHIO HV OHIO ND ND ND ND \ VJ l-27 j 1.07 M 1-5 . o-(= & r?r~ MD ND ND ND ND ND ND , A w e 11 is b a c k from the river **first community to take water directly from the river ***values obtained from Experimental Station multiplied by 1.5 to convert to C-8 vs F content originally reported MD = below the detection limit of 0.6 as C-8 (0.4 as F) 000192 Polymer Products Department Research and Development Division Experimental Station cc: S. C. Croft - 256 M. A. Kaiser - 256 T. K. Wu - 323 PRAL File - 256 I.C. - 323 ANALYTICAL REPORT June 25, 1984 TO: J. F. DOUGHTY - PPD, WASHINGTON WORKS FROM: S. R. LAAS PERFLUOROOCTANOATE (C8) IN WATER (Job No. 840-0670; PRAL Nos. 84-3201-6; 3464-68; 3979-82, Notebook No. E27552) Fifteen samples of water have been analyzed for perfluorooctanoate (C8) by electron capture gas chromatography. Method ES-567 was used with the following modifications: sample size was lOg; lyophilization was~^<18-20 hours; concentration of perfluorodecanoate internal standard was decreased 10 fold. Spiked standards at concentrations of 0.1, 0.2, 0.3, 0.4 ppb were examined. A reproducible detectable peak was observed for 0.4 ppb and we have used this as our detection limit. No C8 peak was detected in the spiked standards'?.4 ppb. For the quantitation we had linear calibration curves over the range of 0.4 to 1 ppb. The samples were freezed dried, derivitized, and analyzed in duplicate. The results are expressed as ppb fluoride where ppb F = 0.688 x ppb perfluorooctanoate. The results are given in the attached table. If you have any questions, don't hesitate to call. msg Attachment Keywords : GC Perfluorooctanoate Water RJZ009217 EID079099 000193 TABLE I Perfluorooctanoate in Water Pral No. 84-3401 84-3402 84-3403 84-3404 84-3405 84-3406 84-3464 84-3465 84-3466 84-3467 84-3468 84-3979 84-3980 84-3981 84-3982 Designation P D L G RD WB B WW R RW PP WB L WW LB ng F/g Water (ppb)' n.d. n.d. 0.4 n.d. n.d. 0.8 ' n.d. n.d. n.d. n. d . n. d . 0.7 r n.d. n.d. 1. (a) n.d. ** none detected; detection limit = 0.4 ppb. 000194 B D 01910