Andy Rezendes, Alpha Analytical Labs

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MADEP Guidance-SamplingIndoor Airwww.alphalab.com• Outdoor air sample recommended• Can limit investigation to COCs, refer to MassDEP RiskCharacterization Guidance (sect. 2)• Should be sampled simultaneously or at a similar time assubslab/soil vapor samples• Other collection devices allowed in App. 3 (vials, bags,passive monitors, tubes), no MCP methodology for thesedevices
MADEP Guidance-SamplingSubslab/Soil Vaporwww.alphalab.com• Currently main document not consistent w/ appendices• Should not be sampled “at too high a rate”, will most likelybe updated to 200 mL/min• Should be sampled simultaneously or at a similar time asindoor air samples
Page 1 and 2: Analytical Methods forAir and Vapor
Page 3: www.alphalab.comAnalytical Methods
Page 6 and 7: Air Sampling EquipmentCanisters (FS
Page 8 and 9: www.alphalab.comCanister Sampling D
Page 10 and 11: General PrinciplesAmbient Air Sampl
Page 12 and 13: www.alphalab.comPost - Sampling, wh
Page 14 and 15: Subslab Mitigation Systems andPVC C
Page 16 and 17: MADEP Vapor Intrusion GuidanceWSC#
Page 20 and 21: • “Hybrid method” of TO-15 an
Page 22 and 23: CAM Methods for TO-15and APHwww.alp
Page 24 and 25: CT & RI RSR Criteriawww.alphalab.co

Andy Rezendes, Alpha Analytical Labs

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