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WESTATES 6611 SAN LEANDRO ST • OAKLAND CALIFORNIA 94621 <br /> • carbon TELEPHONE (510) 6397274 • FAX (510) 6397762 <br /> July 14 , 1992 <br /> a <br /> George Converse <br /> Western Geo-Engineers <br /> 1386 Beamer Street <br /> Woodland, CA 95695-9603 <br /> Dear George: <br /> Westates Carbon recently serviced your carbon adsorption system. <br /> Our turnkey service includes laboratory tests on your spent carbon. <br /> Measurements of moisture (XM) and volatile matter loading (VM) are <br /> taken and reported in the following manner: <br /> VM wet - Organic <br /> T <br /> VM dry = Organic_ <br /> Carbon Wt <br /> XM = HzQ Wt <br /> T <br /> Where T = Carbon Wt + Organic Wt + HO Wt <br /> Attached are your test results . Often these results are useful in <br /> evaluating carbon performance. If you have any questions <br /> .concerning them, please do not hesitate to contact me . <br /> Sincerely yours , <br /> A� '7a4--t- 6a-r'� <br /> Peter James Guichard <br /> District Manager <br /> PJG/dsj <br />