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Curtis &Tompkins.Ltd. <br /> LABORATORY NUMBER: 101391 - 1 DATE RECEIVED: 08 / 15/ 90 <br /> CLIENT: TREADWELL & ASSOCIATES DATE ANALYZED: 08 /17 /90 <br /> JOB #: 1107A DATE REPORTED: 08/ 17 / 90 <br /> SAMPLE ID: B- 1 - 1 <br /> Title 26 Metals in Aqueous Solutions <br /> METAL RESULT REPORTING METHOD <br /> LIMIT <br /> mg/L mg /L <br /> Antimony ND 0 . 1 EPA 6010 <br /> Arsenic ND 0 . 05 EPA 6010 <br /> Barium 0 . 10 0 . 01 EPA 6010 <br /> Beryllium ND 0 . 01 EPA 6010 <br /> Cadmium ND 0 . 01 EPA 6010 <br /> Chromium ( total ) ND 0 . 01 EPA 6010 <br /> Cobalt 0 . 02 0 . 01 EPA 6010 <br /> Copper ND 0 . 02 EPA 6010 <br /> Lead ND 0 . 05 EPA 6010 <br /> Mercury ND 0 . 001 EPA 7470 <br /> Molybdenum 0 . 01 0 . 01 EPA 6010 <br /> Nickel 0 . 01 0 . 01 EPA 6010 <br /> Selenium ND 0 . 05 EPA 6010 <br /> Silver ND 0 . 02 EPA. 6010 <br /> Thallium ND 0 . 1 EPA 6010 <br /> Vanadium ND 0 . 02 EPA 6010 <br /> Zinc ND 0 . 01 EPA 6010 <br /> ND = Not detected at or above reporting limit . <br /> QA/QC SUMMARY <br /> ---------------------------------------------------------------------- <br /> ------------------------------------------------ <br /> RPD,%a RECOVERY,%a RPD,%a RECOVERY,%a <br /> Antimony 1 83 Mercury 2 99 <br /> Arsenic 1 82 Molybdenum <1 88 <br /> Barium 1 88 Nickel 1 89 <br /> Beryllium <1 90 Selenium 2 86 <br /> Cadmium 1 83 Silver 4 112 <br /> Chromium 1 87 Thallium 4 82 <br /> Cobalt 2 90 Vanadium <1 88 <br /> Copper 1 93 Zinc 1 87 <br /> Lead 8 87 <br />