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COMMERCIALTESI III IIIIIIIIIIIIIIII NEERING CO. <br /> GENERAL OFFICES:1919 SOUTH HIGHLAND AVE.SURE 999 •TEL 708-953.9300 FAx70S-953-9306 <br /> 1908, ��±� <br /> v �..�.ie.1. Member of the SGS Group(Socidtd Gdndrele de Surveillance) <br /> PLEASE ADDRESS ALL CORRESPONDENCE TO: <br /> September 22, 1997 e665 PARIS SUITE STREET <br /> B&200 <br /> DENVER,CO 80239 <br /> ' PUBLIC 'SERVICE COMPANY OF CO. TEL:(303)373-4772 <br /> 1500 W. Hampden Ave. FAX:(303)373-4791 <br /> Building 5H Sample identification by <br /> Englewood CO 80110 PUBLIC SERVICE OF COLORADO <br /> SAMPLE ID: ARAPAHOE PRB <br /> Kind of sample ASH <br /> Sample taken by PUBLIC SERVICE OF COLORADO <br /> Date received August 18, 1997 <br /> Analysis report no. 72-365095 _ <br /> PARAMETER RESULTS PARAMETER RESULTS <br /> Aluminum, Al 8.43 t Magnesium, Mg 2 .88 <br /> Antimony, Sb <4 ug/g Manganese, Mn 130 ug/g <br /> Arsenic, As 20 ug/g Mercury, Hg 1.42 ug/g <br /> Barium, Ba 5450 ug/g Molybdenum, Mo 25 ug/g <br /> Beryllium, Be 3 ug/g Nickel, Ni 45 ug/g <br /> Boron, B 810 ug/g Phosphorus, P 3750 ug/g <br /> Cadmium, Cd c2 ug/g Potassium, K 0.39 t <br /> Calcium, Ca 17.02 4 Selenium, Se 10 ug/g <br /> Chromium, Cr 61 ug/g Silicon, Si 16.99 k <br /> Cobalt, Cc 25 ug/g Silver, Ag a2 ug/g <br /> Copper, Cu 170 ug/g Sodium, Na 1.40 t <br /> Iron, Fe 4 .14 is Strontium, Sr 2580 ug/g <br /> Lead, Pb 20 ug/g Titanium, Ti 8190 ug/g <br /> Lithium, Li 32 ug/g Vanadium, V 200 ug/g <br /> Zinc, Zn 100 ug/g <br /> Procedure: The sample was prepared and analyzed by approved EPA and <br /> methods designated on the client submittal sheet. <br /> Results: Results are reported as indicated on an as received basis. <br /> Respectfully submitted, <br /> COMMERCIAL TESTING 6 ENGINEERING CO. $ <br /> Denver Laboratory <br /> OVER e0 BRANCH LABORATORIES STRATEGICALLY LOCATED IN PRINCIPAL COAL MINING AREAS.TIDEWATER AND GREAT LAKES PORTS.AND RIVER LOADING FACILITIES <br /> A65 <br />