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ALS Enuironmenta1 <br /> CERTIFICATE OF ANALYSIS <br /> CLIENT: GeoEngineers, Inc. DATE: 1/25/2021 <br /> 1101 Fawcett Ave. S., Suite 200 ALS SDG#: EV21010084 <br /> Tacoma, WA 98402 WDOE ACCREDITATION: C601 <br /> CLIENT CONTACT: Jacob Letts <br /> CLIENT PROJECT: Smith St. Mill <br /> LABORATORY CONTROL SAMPLE RESULTS <br /> SPIKE LIMITS ANALYSIS ANALYSIS BY <br /> SURROGATE METHOD %REC RPD QUAL ADDED RESULT MIN MAX RPD DATE <br /> 1,2-Dichloroethane-d4-BS SW8260D 97.1 5.00 4.85 71 130 01/14/21 DLC <br /> 1,2-Dichloroethane-d4-BSD SW8260D 96.9 5.00 4.85 71 130 01/14/21 DLC <br /> Toluene-D8-BS SW8260D 101 5.00 5.05 80 120 01/14/21 DLC <br /> Toluene-D8-BSD SW8260D 102 5.00 5.08 80 120 01/14/21 DLC <br /> p-Bromofluorobenzene-BS SW8260D 86.3 5.00 4.31 78 120 01/14/21 DLC <br /> p-Bromofluorobenzene-BSD SW8260D 85.9 5.00 4.29 78 120 01/14/21 DLC <br /> ALS Test Batch ID: 161705-Water by SW8270ESIM Prepared 01/18/21 00:00 <br /> SPIKE LIMITS ANALYSIS ANALYSIS BY <br /> SPIKED COMPOUND METHOD %REC RPD QUAL ADDED RESULT MIN MAX RPD DATE <br /> Naphthalene-BS SW8270ESIM 41.7 5.00 2.08 36 118 01/19/21 JMK <br /> Naphthalene-BSD SW8270ESIM 36.8 12 5.00 1.84 36 118 27 01/19/21 JMK <br /> 2-Methylnaphthalene-BS SW8270ESIM 45.7 5.00 2.29 20 150 01/19/21 JMK <br /> 2-Methylnaphthalene-BSD SW8270ESIM 39.7 14 5.00 1.99 20 150 30 01/19/21 JMK <br /> 1-Methylnaphthalene-BS SW8270ESIM 47.7 5.00 2.39 20 150 01/19/21 JMK <br /> 1-Methylnaphthalene-BSD SW8270ESIM 42.5 12 5.00 2.12 20 150 30 01/19/21 JMK <br /> Acenaphthylene-BS SW8270ESIM 64.6 5.00 3.23 20 150 01/19/21 JMK <br /> Acenaphthylene-BSD SW8270ESIM 64.8 0 5.00 3.24 20 150 30 01/19/21 JMK <br /> Acenaphthene-BS SW8270ESIM 58.6 5.00 2.93 37 125 01/19/21 JMK <br /> Acenaphthene-BSD SW8270ESIM 58.9 0 5.00 2.95 37 125 29 01/19/21 JMK <br /> Fluorene-BS SW8270ESIM 70.5 5.00 3.52 20 150 01/19/21 JMK <br /> Fluorene-BSD SW8270ESIM 71.8 2 5.00 3.59 20 150 30 01/19/21 JMK <br /> Phenanthrene-BS SW8270ESIM 83.8 5.00 4.19 20 150 01/19/21 JMK <br /> Phenanthrene-BSD SW8270ESIM 87.9 5 5.00 4.39 20 150 30 01/19/21 JMK <br /> Anthracene-BS SW8270ESIM 82.8 5.00 4.14 20 150 01/19/21 JMK <br /> Anthracene-BSD SW8270ESIM 88.1 6 5.00 4.41 20 150 30 01/19/21 JMK <br /> Fluoranthene-BS SW8270ESIM 82.1 5.00 4.11 20 150 01/19/21 JMK <br /> Fluoranthene-BSD SW8270ESIM 84.0 2 5.00 4.20 20 150 30 01/19/21 JMK <br /> Pyrene-BS SW8270ESIM 91.3 5.00 4.57 59 156 01/19/21 JMK <br /> Pyrene-BSD SW8270ESIM 98.8 8 5.00 4.94 59 156 22 01/19/21 JMK <br /> Benzo(a)anthracene-BS SW8270ESIM 93.0 5.00 4.65 20 150 01/19/21 JMK <br /> Benzo(a)anthracene-BSD SW8270ESIM 97.7 5 5.00 4.89 20 150 30 01/19/21 JMK <br /> Chrysene-BS SW8270ESIM 76.6 5.00 3.83 20 150 01/19/21 JMK <br /> Chrysene-BSD SW8270ESIM 81.2 6 5.00 4.06 20 150 30 01/19/21 JMK <br /> Benzo(b)fluoranthene-BS SW8270ESIM 93.3 5.00 4.66 20 150 01/19/21 JMK <br /> Benzo(b)fluoranthene-BSD SW8270ESIM 98.8 6 5.00 4.94 20 150 30 01/19/21 JMK <br /> Benzo(k)fluoranthene-BS SW8270ESIM 76.5 5.00 3.83 20 150 01/19/21 JMK <br /> Benzo(k)fluoranthene-BSD SW8270ESIM 81.2 6 5.00 4.06 20 150 30 01/19/21 JMK <br /> Benzo(a)pyrene-BS SW8270ESIM 102 5.00 5.08 20 150 01/19/21 JMK <br /> Benzo(a)pyrene-BSD SW8270ESIM 102 0 5.00 5.09 20 150 30 01/19/21 JMK <br /> Page 27 <br /> ADDRESS 8620 Holly Drive, Suite 100, Everett,WA 9820 PHONE 425-356-2600 425-356-2626 <br /> ALS Group USA,Corp dba ALS Environmental <br /> www.aisgiobal.com <br /> RIGHT SO1-UTIOf15 -1-i. 1-1.1 1 1-11 <br />