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+------------------------------+ <br /> Metal Finishing Analytical Page 3 of 3 <br /> 1733 "S" Street <br /> Sacramento, CA 95814 <br /> (916) 442-1063 <br /> +------------------------------+ <br /> REPORT OF UNKNOWN MATERIALS IDENTIFICATION AT R.V. CIRCUITS <br /> IV The following pails contained nitric acid solutions at different <br /> concentrations . They were consolidated in a 55-gal drum identified as <br /> 10 . 11 . 93-5 . Later, a Hazardous Waste label was applied to this drum. <br /> ID # % by Vol HNO3 Vol ID # $ by Vol HNO3 Vol <br /> 48 22 . 0 5 127 13 . 0 5 <br /> 123 24 . 0 5 128 3 . 0 5 <br /> V The following containers were holding Electroless Copper rinse and <br /> they are going to be treated separately through R.V. Circuits <br /> treatment unit. For now, they are stored in three 55-gal drums <br /> identified as 10 . 11 . 93-6 . 10 . 11 . 93-7 and 10 . 11 . 93-8 Also these drums <br /> have Hazardous Waste labels . <br /> ID # pH Vol ID # pH Vol ID # pH Vol <br /> 40 11 . 8 5 62 10. 2 5 104 8 . 6 15 <br /> 41 11 . 2 5 63 10. 5 5 141 10 .4 5 <br /> 49 11 . 9 5 64 10 . 2 5 142 11 . 2 5 <br /> 51 8 . 6 5 65 10 . 5 15 103 9 . 0 15 <br /> 56 11 . 8 5 67 10 . 3 15 <br /> 61 10 . 2 5 100 9 . 3 55 <br /> VI The numbers not listed above, either contained usable raw material <br /> or were solutions stored in process tanks . All listed containers, <br /> (except two or three, for which a deposit can be recovered) were <br /> triple rinsed and rendered unusable by cutting their bottoms with an <br /> electrical saw, as instructed by Mr Irey and Ms Ratliff . <br /> VII Minor wet spots around chemical storage area and close to the air <br /> compressor were dried using inert material (Safe-t-sorb) which <br /> subsequently was cleaned up and deposited in a tank labeled as Solid <br /> Hazardous Waste. <br /> Any questions regarding this report, please call at your <br /> convenience at the following number: (916 ) 442-1063 <br /> Sincerel , <br /> tIGWv\ <br /> E . Paramo r an2Yez <br />