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nr-T-01-1 92 09: 16 FRO[1Ttl8 -39712094640138;� P.03 <br /> A T T <br /> Mr. Brian Piper <br /> Shields Inc, <br /> October 1, 1992 <br /> Page 2 <br /> Laboratory (FGL) for analysis of pH using EPA methodsin accordance <br /> with 22 CCR Appendix , Table 3. <br /> additional ash sample(July 1 )was collected submitted,under <br /> chain- <br /> study documentation, to FOL for total metals arWysis. Concentrations for the <br /> ash sample were determined utilizing ductiv ly-c u le plasma optical <br /> emission spectroscopy (EPA Method )witb the exception cif antimony(EPA <br /> Method I), arsenic (EPA Method 7060), lea (EPA Method7420), mercury <br /> (EPA Method7471), selenium (EPA Method 7740), silver (EPA Method ), <br /> thalliumand (EPA Method 7841), which were analyzed by graphite ftimace <br /> atomic absorption methods, The metalanalysis methods are in accordance w" <br /> 22 CCR Appendix , Table 3. <br /> An additional ash sample was collected for aquatic bioassay testing. uatic <br /> bioassays were performed on the waste sample accordance t <br /> described in 22 CCR, Section 66261® (6). 1"he sample was submitted to <br /> Western i y Laboratories ( ) (formerly ATT Bioassay Laboratory) for <br /> an acute 96-hour bioassay test on fathead minnows (Pimephales promelas). <br /> All laboratories, accredited , the California <br /> Department of Health Services. <br /> The waste cbaracterizatiou presented below is based on the data determined <br /> the testing laboratories. <br /> summaryANALYTICAL RESULTS <br /> the analyticalchemistry results are presented in Table1 <br /> (Attachment ). Laboratory analytical cbemistry and bioassayresults and chain- <br /> of-custody documentation are presentedAttachment B. <br /> 'Me mean pH of the twelveles was determined12.3. Tle pH of <br /> the individual ash samples ranged from 12.0 12.4. <br /> The ash sample, July, 1992,was analyzed for total metalsusing TotalThreshold <br /> Limitcntr tip (TTI.Q, California Wastecti t <br /> protocols o est using deioni7edter and TCLP sample <br /> preparationr c s. <br /> /s z. <br />