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Enviro — Chem, Inc. <br /> 1214 E. Lexington Avenue, Pomona, CA 91766 Tel (909) 590-5905 Fax (909) 590-5907 <br /> METHOD BLANK REPORT <br /> CUSTOMER: Advanced GeoEnvironmental, Inc. <br /> 837 Shaw Road, Stockton, CA 95215 <br /> Tel (209) 467-1006 E-Mail: BMillman@advgeoenv.com <br /> PROJECT: Global Materials Management <br /> MATRIX:SOIL DATE RECEIVED:01/18/19 <br /> DATE SAMPLED:01/17/19 DATE ANALYZED: 01/21-23/19 <br /> REPORT TO:MR. BRIAN MILLMAN DATE REPORTED:O1/25/19 <br /> ------------------------------------------------------------------------ <br /> METHOD BLANK FOR LAB I.D. : 190118-2 THROUGH -5 <br /> ---------------------------------------------------------------------- <br /> SOLUBLE THRESHOLD LIMIT CONCENTRATION (STLC) ANALYSIS <br /> UNIT: mg/L IN THE STLC LEACHATE <br /> ---------------------------------------------------------------------- <br /> ELEMENT SAMPLE TTLC STLC EPA METHOD <br /> ANALYZED RESULT PQL DF LIMIT LIMIT USED <br /> Chromium (Cr) ND 0.05 1 2, 500 560/5.0@ 6010B <br /> ----------------------------------------------------------------------- <br /> COMMENTS <br /> DF = Dilution Factor <br /> PQL = Practical Quantitation Limit <br /> Actual Detection Limit = PQL X DF <br /> ND = Below the actual detection limit or non-detected <br /> TTLC = Total Threshold Limit Concentration <br /> STLC = Soluble Threshold Limit Concentration <br /> @ = Must meet the TCLP limit/chromium (5.0 mg/L in TCLP leachate) <br /> ** = TCLP Chromium/TTLC-Chromium VI recommended (if marked) <br /> *** = The concentration exceeds the STLC Limit, and the sample is <br /> defined as hazardous waste as per,CAL-TITLE 22 (if marked) <br /> r/ <br /> Data Reviewed and Approved by: <br /> CAL-DHS ELAP CERTIFICATE No. : 1555 <br />