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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: Kleen Industrial Services <br /> 50 Oak Court, Suite 210 <br /> Danville, CA 94526 <br /> Tel (925) 831-9800 Email:fionn@kleenblast.com <br /> PROJECT: SFO-18-155 / B&C Painting Solutions / Bldg #107 <br /> Val Dervin Parkway, Stockton, CA 95206 / Blasting Area <br /> MATRIX: SOLID DATE RECEIVED: 08/14/18 <br /> SAMPLING DATE: 08/13/18 DATE ANALYZED:08/15-17/1B <br /> REPORT TO:MR. FIONN O'NEILL DATE REPORTED: 08/17/18 <br /> METHOD BLANK FOR LAB I.D. : 180814-20 <br /> ---------------------------------------------------------------------- <br /> SOLUBLE THRESHOLD LIMIT CONCENTRATION (STLC) ANALYSIS <br /> UNIT: mg/L IN THE STLC LEACHATE <br /> ELEMENT SAMPLE TTLC STLC EPA METHOD <br /> ANALYZED RESULT PQL DF LIMIT LIMIT USED <br /> Barium (Ba) ND 0 , 5 1 10, 000 100 6010B <br /> Chromium (Cr) ND 0 . 05 1 2, 500 560/5. 0@ 6010B <br /> Copper (Cu) ND 0 . 1 1 2, 5,00 25 6010B <br /> Lead (Pb) ND 0. 05 1 1, 000 5. 0 6010B <br /> Mickel (Ni) ND 0.25 1 2, 000 20 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 /> Data Reviewed and Approved by: f <br /> CAL-DHS ELAP CERTIFICATE No. : 1 55 <br />