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9i-F207-032-03 -2- December 3, 1980 <br />r '` <br />• <br />C 7ota1 and dissolved Aluminum, Beryllium, Cadmium, Chromium, Copoe~r, Ircn, <br />Lead, 1•langanese, Nickel, Silver, Thallium, Zinc and Barium were all analyzed <br />by flame atomic absorption and Selenium and Arsenic Glere determined by <br />hydride generation atomic absorption from the above prepared solutions. <br /> <br />L <br />1.1erc,Iry was analyzed by cold vapor flameless atomic absorption using a <br />permangate/persulfate digestion of the original filtered and unfiltered <br />samples as described in EPA - Methods for Chemical •4nal sis of :Maters and <br />pastes 1979 (Method 245.1 - Manual Cold Vapor Techniques . <br />Uranium was determined by fluorimetry using the original filtered and un- <br />filtered samples. <br />Boron was analyzed colorimetrically by the EPA '•lethods for Chemical Anal sis <br />of Waters and'~Iastes, 1979 (Ptethod 212.3 - Curcumin . <br />Nexavalent Chromium was analyzed colorimetrically by the procedures of <br />Standard Methods, 14th Edition. Total Hexavalent Chromium data is of little <br />significance since to be colored the Chromium needs to be in solution. <br />For all Chromium to be in solution requires an acid digestion which oxi- <br />dizes all the Chromium to a hexavalent state. This data was determined on <br />an unfiltered undigested samole. <br />The results of these analyses are presented in Table "Jo. 1 and are reported ~. <br />in milligrams per litre (mg/1) on the following page. <br />COMMER CIAL TESTING & ENGINEERING CO. <br />Original COCY Wat er marketl <br />Far Vour Protection <br />F A69 <br />