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28 December 2018 AdvancedGeo <br />AGE Project No. 18-4574 Environmental <br />Page 10 of 12 <br />4.1.3. Analytical Laboratory and Methodology <br />The collected wipe samples will be analyzed by DPH certified analytical laboratory. Wipe <br />samples will be analyzed for methamphetamine contamination using Liquid <br />Chromatography Mass Spectrometry. <br />4.1.4. Quality Assurance and Control <br />A blank wipe sample will be submitted for laboratory analysis of methamphetamine for <br />quality assurance and control purposes. <br />4.2. NUMBER OF EACH SAMPLE TYPE TO BE COLLECTED <br />A total of sixteen (16) discrete samples will be collected from the common rooms of the <br />residence. A total of six (6) composite samples will be collected from auxiliary rooms <br />within the residence. <br />Qo �-e� we <br />5.0. REMEDIATION AREAS -'fl it AA i o �& <br />Remediation will be discussed in greater detail in the Prelimin <br />(PSAR) and will include a discussion of pre -remedial sampl MJ <br />in -lieu of sampling, in accordance with EHD requirements. <br />5.1. AREAS TO BE REMEDIATED IN LIEU OF SAMPLING <br />Based upon available information, the northwest guest bedroom is likely the location of <br />methamphetamine conversion. The bedroom and all accompanying equipment found in <br />the room will be thoroughly cleaned and/or will be disposed of in lieu of sampling. <br />The residence appears to be heated by a central air system. Based upon AGE's visual <br />inspection of the interior, the type of system (return/forced air), it is highly likely that the <br />entire ventilation system has been contaminated. Therefore, all ducting, vents, air filters <br />and fan units should be replaced in lieu of sampling. <br />5.1.1. RESIDENCE <br />The PSAR will provide remedial recommendations if the PSAWP sampling results report <br />contamination at or above the California State Re -Occupancy Criteria in any room of the <br />residence. Items to be disposed will be containerized and disposed of at an EHD <br />approved waste disposal facility. The PSAR will also detail the scope and methodology <br />of work for collection, containerization and disposal. <br />