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CICT-01-19 9`, 09: 17 FROM TO 877 W, 39 712946,40138 R.04 COP1A T T Mr. Brian Piper ShieldsioInc. October 1, 1992 Page 3 The TCLP protocol produced concentrations at 284 milligrams per ® (mg/Kg),beryllium at 0.7 mg/Kg,, chroraium at 1 mg/Kg, cobalt at 7.0 / ° , copper at 29 mg/Kg, leaat 6. mg/Kg, mercuryat 0.04 mg/Kg, molybdeum at 1 mg/Kg, nickel at 12 mg/Kg, selenium t 4, mg/Kg,vanadium at 2 mg/Kg, and zinc at 18 mg/Kg. The WET sample preparation protocol produced concentrations of molybdeum at 0.4 milligrams per liter ( / ). Modified rotoco s using deionizedwater produced concentrations barium t 0.2 mg/L. TCLP sample preparationrotorproduced concentrations of barium at 0.4 mg/L An additional ash sample was collected submitted, under chain-of-custody documentation to Western Bioassay Laboratories ( I.) (formerly ATT BioassayLaboratory) for fish to)dcity testing. The fish bioassay data indicated that the 96® our LC50 exceeded 750 / which was r a.t than the regulatory in requirement of 500 mg/L, DISCUSSION The pH testing o 0 0 on twelve different samples indicates that the ash sample did not meet the criteria for corTosivity describedSection 66261.22. Mie criteria for hazardous waste identification requir ata material have a pH f4.. ess than or equal to 2 or greater than or equal to 12.5..."; the mean pH of the twelve ash samples was 12.3. The pH of the ° di�idual ash samples did t range above 12.4. The metals test' performed indicates a e sample t meet e criteria for toxicity described 22 CCR, Section6621.24. The TrLC, STLC and/or TCLP regulatory levels were not met nor exceeded by any metaldetected in the ash sample. The our LC50 results for fathead owes were reported eater than 750 / erefoe, the waste does not meet the toxicity `teria described in 22 Section 66261.24 (6), In order for a waste to be non-hazardous ®s toxicity ` ri96-hour e less than or equal to 500 mg/L. Ignitability and reactivity testing was not performed on the ash sample because in e judgement of ATT, the ash generation process wouldnot produce a waste 92M/DK1/SH1ELD2.RFr