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5 <br /> Enviro - Chem, Inc. <br /> 1214 E. Lexington Avenue, Poi ona, CA 91766 lel (909) 590-5905 Fax (909) 590-5907 <br /> METHOD BLANK REPORT <br /> CC]STOf�lER: K1een IndustrialServices <br /> 50 Oak Court, Suite 210 <br /> Danville, CA 94526 <br /> Tel., (925) 831-9800 E-Mail: Fionn@KleenBlast'.com <br /> PROJECT: SFO-21-175 / Raptor Blasting Solutions <br /> Stockton Propellor - AC <br /> MATRIX:SOLID DATE RECEIVED: 05/27/21 <br /> SAMPLING DATE; 05/21/21 DATE ANALYZED: 05/28/21 <br /> REPORT TO MR. FIONN O'NEILLDATE REPORTED:06/02/21' <br /> -_ ----------------.. ------------------------------------------------- <br /> METHOD <br /> -_:,---------- ----_-----_---_---------m.- <br /> METHOD BLANK FOR LAS I.D.,: 210527-4 <br /> ...s..r r.-.....v r ti:.:�.—+.r w+.e r:—a.z w.am.o-s Yt v v.—-car—_—w---...w.....+m wr—rrre..m m+a m m uc—a———....—...—_...r Yr r—..--r.—w——+r+-v:w m.w— <br /> TOTAL THRESHOLD LIMIT CONCENTRATION ANALYSIS <br /> UNIT: mg/Kg = MILLIGRAM PER KILOGRAM = PPM' <br /> ELEMENT SAMPLE TTLC STLC EPA <br /> ANALYZED RESULT PQL DF LIMIT LIMIT METHOD s <br /> Antimony (Sb) ND 1 .0 1 500 15 6010E <br /> Arsenic(As) ND 0.5` 1 500 5. 0 6010B <br /> Barium(Ba)' ND 50 1 10, 000` 100 6010B, <br /> Beryllium(Be) ND 0. 5 1 75 0.75 6010B <br /> Cadmium(Cd) ND' 0.5 1 100 1.0 6010B <br /> Chromium Total (Cr) ND 0.5 1 2,500 560/5@ 6010B <br /> Chromium VI (Cr6) 0.2 - 500 5,0 7196A <br /> Cobalt (Co) ND 1. 0 1 8, 000 80 60108 <br /> Copper(Cu) ND 1.0 1 2, 500 25` 6010B <br /> Lead(Pb) ND 0. 5 1 1,000 5.0 6010B <br /> Mercury (Hg) ND 0.01 1 20 0.2 7471A } <br /> Molybdenum(Mo) ND 5.0 1 3, 500' 350 6010B <br /> Nickel (Ni) ND` 2. 5 1 2, 000 20 6010B <br /> Selenium(Se) ND 1, 0 1 100' 1. 0 6010E <br /> Silver(Ag) ND 1 .0 1 500 5.Q 6010B <br /> Thallium(Tl) ND 1 .0 1 700 7.0 6010B <br /> Vanadium(V) ND` 5.0' 1 2, 400 24 60108 <br /> Zinc (Zn)' ND 0.5 1_ 5, 000 250' 6010B <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 both the STLC Limit at 560 and EPA-TCLP Limit at 5 <br /> * STLC analysis for the metal is recommended (if marked) <br /> ** - Additional Analysis required, please call to discuss (if marked) <br /> *** = The concentration exceeds the TTLC Limit, and the sample is <br /> defined as hazardous waste as per CCR-TITLE 22 (it marked) <br /> Not analyzed/not requested <br /> Data Reviewed and Approved by: <br /> CAL-DHS ELAP CERTIFICATE No. ; 1 55 <br /> i <br /> E' <br />