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Pace Analytical Services,LLC <br /> lacmnalyfical 1700 Elm Street-Suite 200 <br /> Minneapolis,MN 55414 <br /> www.pacelabs.com (612)607-1700 <br /> PROJECT NARRATIVE <br /> Project: 7036 French Camp CA-Lathrop In-Revised Report <br /> Pace Project No.: 10508446 <br /> Method: EPA 8015 Modified <br /> Description: 8015 GCS THC-Diesel <br /> Client: UPRR_Arcadis <br /> Date: March 20,2020 <br /> Laboratory Control Spike: <br /> All laboratory control spike compounds were within QC limits with any exceptions noted below. <br /> Matrix Spikes: <br /> All percent recoveries and relative percent differences(RPDs)were within acceptance criteria with any exceptions noted below. <br /> QC Batch:659949 <br /> A matrix spike and/or matrix spike duplicate(MS/MSD)were performed on the following sample(s): 10508446001 <br /> M6:Matrix spike and Matrix spike duplicate recovery not evaluated against control limits due to sample dilution. <br /> •MS (Lab ID:3541950) <br /> •Motor Oil Range(C24-C36) <br /> •TPH-DRO(C10-C28) <br /> •MSD (Lab ID:3541951) <br /> •Motor Oil Range(C24-C36) <br /> •TPH-DRO(C10-C28) <br /> Additional Comments: <br /> Analyte Comments: <br /> QC Batch:659949 <br /> N2:The lab does not hold NELAC/TNI accreditation for this parameter but other accred itations/certifications may apply.A complete <br /> list of accreditations/certifications is available upon request. <br /> •BLANK (Lab ID:3541948) <br /> •Motor Oil Range(C24-C36) <br /> •LCS (Lab ID:3541949) <br /> •Motor Oil Range(C24-C36) <br /> •MS (Lab ID:3541950) <br /> •Motor Oil Range(C24-C36) <br /> •MSD (Lab ID:3541951) <br /> •Motor Oil Range(C24-C36) <br /> •SS-1-22 (Lab ID: 10508446001) <br /> •Motor Oil Range(C24-C36) <br /> •SS-1-48 (Lab ID: 10508446002) <br /> •Motor Oil Range(C24-C36) <br /> -SS-2-16 (Lab ID: 10508446003) <br /> •Motor Oil Range(C24-C36) <br /> •SS-2-54 (Lab ID: 10508446004) <br /> •Motor Oil Range(C24-C36) <br /> •SS-3-14 (Lab ID: 10508446005) <br /> •Motor Oil Range(C24-C36) <br /> •SS-4-12 (Lab ID: 10508446007) <br /> •Motor Oil Range(C24-C36) <br /> •SS-4-40 (Lab ID: 10508446008) <br /> •Motor Oil Range(C24-C36) <br /> REPORT OF LABORATORY ANALYSIS <br /> This report shall not be reproduced,except in full, <br /> without the written consent of Pace Analytical Services,LLC. Page 7 of 39 <br />