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BARRING~'R LABORATORIES, INC.
<br />' 15000 W.6TH AVE., SURE 300 GOLDEN, CO 80101 (303) 277.1687 FAX (303) 277-1689
<br />28-Apr-99
<br />Mr. Paul Banks Page: i
<br />' Banks and Gesso LLC
<br />720 Kipling Street
<br />Suite 117
<br />Lakewood, CO 80215
<br />1 Attn: Received: 8-Apr-99 10:45
<br />Project: Banks and Gesso PO #:
<br />' Job: 991821E Status: Final
<br />' CASE NARRATIVE
<br />AMENDED REPORT
<br />' A total of 8 Water/Solid samples were received on 8-Apr-99. As stated
<br />in the chain of custody, the samples were run for the following
<br />~ analyses: A1, Ba, Be, B, Ca, Cd, Cr, Co, Cu, Fe, Pb, Li, Mg, Mn, Mo,
<br />' Ni, K, Si, Ag, Na, Sr, Ti, V, Zn, As, Sb, Se, T1, Hg, F, C1, NO3, NO2,
<br />504, PO4, 503, Sulfide, TOC, TDS, Spec. Cond., pH, TICarbon, Alk-HC03,
<br />Alk-C03, Gross Alpha, Gross Beta and Gamma Spectroscopy. A table, to
<br />' cross reference your sample ID to ours, is attached. Our procedures
<br />are summarized on the Quality Control Data Sheet.
<br />Quality control standards for organic and inorganic analyses followed
<br />' the appropriate SW-846 or EPA methodology. Quality control standards
<br />for radiochemistry followed our standard operating procedures or
<br />contractual requirements.
<br />t Some metals results have been determined by the method of standard
<br />additions (MSA) and are flagged with an asterisk.
<br />' The temperature range for the SPLP extraction was 20-25°C.
<br />Sample 991821-3 was diluted for selenium due to matrix interferences.
<br />The MDL has been raised for this dilution.
<br />Samples 991821-1 and 991821-2 required a dilution to accurately
<br />' determine total inorganic carbon.
<br />Sample 991821-2 required a dilution to accurately determine sulfate.
<br />' Sample 991821-3 was diluted for anions by method 300.0 due to matrix
<br />interferences. The MDLs have been raised for this dilution.
<br />' This report has been amended from the report dated April 22, 1999 to
<br />report a lower detection limit for thallium and to report the reanalysis
<br />of sample 991821-6 for conductivity.
<br />Meeting The Analytical Challenges Of A Cha~:ging World Since 1961
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