A & R Laboratories. Formerly Microbac Southern California 1650 S. GROVE AVE., SUITE C ONTARIO, CA

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1 Page of 4 CASE NRATIVE Authorized Signature Name / Title (print) Ken Zheng, President Signature / Date Ken Zheng, President 2/3/206 9:53:22 Laboratory Job No. (Certificate of Analysis No.) Project Name / No. AAA RECLAMATION CENTER PERRIS, CA Dates Sampled (from/to) To Dates Received (from/to) To Dates Reported (from/to) 2/3/6 To 2/3/206 Chains of Custody Received Yes Comments: Subcontracting Organic Analyses No analyses sub-contracted Inorganic Analyses No analyses sub-contracted Sample Condition(s) All samples intact Positive (Organic Compounds) Sample Analyte Result Qual Units RL Sample Analyte Result Qual Units RL B-@0.5' C3-C mg/kg 0 B-@0.5' 5320 mg/kg 20 B-3@0.5' C3-C mg/kg 0 B-3@0.5' 8000 mg/kg 20 B-3@0.5' Gasoline (C4-C2).6 mg/kg 0.20 B-3@.0' 82 mg/kg 20 E2-

2 Page 2 of 4 CERTIFICATE OF ANALYSIS DENISE CLENDENING 2850 INLAND EMPIRE BLVD. SUITE B Cust # Permit Number 2/3/6 Analysis Result Qual Units Method DF RL Date Tech Sample: 00 B-@0.5' Date & Time 7: C3-C22 Complete EPA 3550B 330 mg/kg EPA 805B mg/kg EPA 805B 20 o-terphenyl (OTP) 80 %REC EPA 805B [Metals Title 22 no Hg] Metals Acid Digestion Complete EPA 3050B Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Molybdenum Nickel Selenium Silver Thallium Vanadium Zinc [Mercury] <.00 mg/kg EPA 600B.00 <.00 mg/kg EPA 600B mg/kg EPA 600B <0.500 mg/kg EPA 600B <0.500 mg/kg EPA 600B mg/kg EPA 600B mg/kg EPA 600B mg/kg EPA 600B mg/kg EPA 600B mg/kg EPA 600B mg/kg EPA 600B <.00 mg/kg EPA 600B mg/kg EPA 600B.00 <.00 mg/kg EPA 600B mg/kg EPA 600B mg/kg EPA 600B 5.00 Mercury Digestion Complete EPA 747A JEN Mercury <0.20 mg/kg EPA 747A 0.20 JEN Sample: 002 B-@.0' Date & Time 7:23 E2-2

3 Page 3 of 4 CERTIFICATE OF ANALYSIS DENISE CLENDENING 2850 INLAND EMPIRE BLVD. SUITE B Cust # Permit Number 2/3/6 Analysis Result Qual Units Method DF RL Date Tech Sample: 002 B-@.0' Date & Time 7: C3-C22 Complete EPA 3550B <0 mg/kg EPA 805B 0 <20 mg/kg EPA 805B 20 o-terphenyl (OTP) 85 %REC EPA 805B Sample: 003 B-2@.0' Date & Time 7: C3-C22 Complete EPA 3550B <0 mg/kg EPA 805B 0 <20 mg/kg EPA 805B 20 o-terphenyl (OTP) 82 %REC EPA 805B Sample: 004 B-3@0.5' Date & Time 7:49 Gasoline (C4-C2).6 mg/kg EPA 805M 0.20 C3-C22 Complete EPA 3550B 820 mg/kg EPA 805B mg/kg EPA 805B 20 o-terphenyl (OTP) 78 %REC EPA 805B E2-3

4 Page 4 of 4 CERTIFICATE OF ANALYSIS DENISE CLENDENING 2850 INLAND EMPIRE BLVD. SUITE B Cust # Permit Number 2/3/6 Analysis Result Qual Units Method DF RL Date Tech Sample: 005 B-3@.0' Date & Time 7: C3-C22 Complete EPA 3550B <0 mg/kg EPA 805B 0 82 mg/kg EPA 805B 20 o-terphenyl (OTP) 80 %REC EPA 805B Respectfully Submitted: Ken Zheng - Lab Director QUALIFIERS B = Detected in the associated Method Blank at a concentration above the routine RL. B = BOD dilution water is over specifications. The reported result may be biased high. D = Surrogate recoveries are not calculated due to sample dilution. E = Estimated value; Value exceeds calibration level of instrument. H = Analyte was prepared and/or analyzed outside of the analytical method holding time I = Matrix Interference. J = Analyte concentration detected between RL and MDL. Q = One or more quality control criteria did not meet specifications. See Comments for further explanation. S = Customer provided specification limit exceeded. ABBREVIATIONS DF = Dilution Factor RL = Reporting Limit, Adjusted by DF MDL = Method Detection Limit, Adjusted by DF Qual = Qualifier Tech = Technician As regulatory limits change frequently, advises the recipient of this report to confirm such limits with the appropriate federal, state, or local authorities before acting in reliance on the regulatory limits provided. For any feedback concerning our services, please contact Jenny Jiang, Project Manager at You may also contact Ken Zheng, President at. E2-4

5 Page of 2 QUALITY CONTROL DATA REPORT Date Sampled Customer # 2/3/206 2/2/206 2/2/206 EPA 600B Date Analyzed: 2/2/206 Technician: 00 LCS %REC LCS %DUP LCS %RPD LCS %REC LCS %RPD Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Molybdenum Nickel Selenium Silver Thallium Vanadium Zinc EPA 747A Date Analyzed: 2/2/206 Technician: JEN 00 LCS %REC LCS %DUP LCS %RPD %REC %DUP %RPD LCS %REC LCS %RPD %RPD Mercury EPA 805B Date Analyzed: 2/2/206 Technician: LCS %REC LCS %DUP LCS %RPD %REC %DUP %RPD LCS %REC LCS %RPD %RPD C3-C EPA 805M Date Analyzed: 2/2/206 Technician: LCS %REC LCS %DUP LCS %RPD %REC %DUP %RPD LCS %REC LCS %RPD %RPD Gasoline (C4-C2) E2-5

6 Page 2 of 2 QUALITY CONTROL DATA REPORT 2/3/206 2/2/206 Date Sampled 2/2/206 No method blank results were above reporting limit Respectfully Submitted: Ken Zheng - President For any feedback concerning our services, please contact Jenny Jiang, Project Manager at You may also contact Ken Zheng, President at. E2-6

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