1、Designation:E260015Standard Guide forVapor Encroachment Screening on Property Involved inReal Estate Transactions1This standard is issued under the fixed designation E2600;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of l
2、ast revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 PurposeThe purpose of this guide is to providepractical guidance and a useful process for conducting a vaporencroachment scr
3、een(VES)on a property parcel involved in areal estate transaction in the United States of America withrespect to chemicals of concern(COC)that may migrate asvapors into the vadose zone of a property as a result ofcontaminated soil and/or groundwater on or near the property.This guide may be used in
4、conjunction with Practice E1527 butdoes not alter or in any way define the scope of that practice.In addition,performance of this guide is not a requirement ofand does not constitute,expand,or in any way define“allappropriate inquiry”as defined and approved by the U.S.Environmental Protection Agency
5、(EPA)under the Compre-hensive Environmental Response,Compensation,and LiabilityAct(CERCLA)and the regulations there under,including 40CFR Sec.312.11.1.1.1 Vapor Encroachment Condition(VEC)The goal ofconducting a VES,as established by this guide,on a parcel ofproperty is to identify a vapor encroachm
6、ent condition(VEC),which is the presence or likely presence of COC vapors in thevadose zone of the target property(TP)caused by the releaseof vapors from contaminated soil and/or groundwater either onor near the TP as identified by Tier 1(see Section 8)or Tier 2(see Section 9)procedures.1.1.2 Federa
7、l,State,and Local Environmental LawsThisguide does not address requirements of any federal,state,orlocal laws with respect to vapor intrusion.Users are cautionedthat federal,state,and local laws,regulations,or policy mayimpose vapor encroachment screening or vapor intrusionassessment obligations tha
8、t are beyond the scope of this guide(information is provided in Appendix X5 and Appendix X9).Users should also be aware that there may be other legalobligations,for example,disclosure,with regard to COC orCOC vapors discovered on the TP that are not addressed in thisguide.1.1.3 DocumentationThe scop
9、e of this guide includesinvestigation and reporting actions.Sufficient documentationof all sources,records,and resources used in the investigationprocedures that are set out in this guide should be provided inthe VES report(refer to Section 10).1.2 ObjectivesObjectives guiding the development of thi
10、sguide are:(1)to synthesize and put into writing a practicalguide for conducting a VES on a property involved in a realestate transaction and(2)to provide that the process to screenfor a VEC is practical and reasonable.1.3 Considerations Outside the ScopeThe use of thisguide is strictly limited to t
11、he scope set forth in this section.Section 11 of this guide identifies,for informational purposes,certain tasks(not an all-inclusive list)that may be conductedon a property that are beyond the scope of this guide but thatmay warrant consideration by parties to a real estate transac-tion.Whether to i
12、nclude an investigation of any such condi-tions in the environmental professionals scope of servicesshould be evaluated by the user and should be agreed uponbetween the user and environmental professional as additionalservices beyond the scope of this guide before initiation of aPhase I ESA conducte
13、d in conjunction with a VES or initiationof an independent VES.1.4 UnitsThe values stated in inch-pound units are to beregarded as the standard.The values given in parentheses aremathematical conversions to SI units that are provided forinformation only and are not considered standard.1.5 Organizati
14、on of this GuideThis guide has elevensections and nine appendices.The appendices are included forinformational purposes and are not part of the proceduresprescribed in this guide.Section 1contains the scope of the guide.Section 2includes the referenced documents.Section 3has definitions of terms per
15、tinent to this guide,terms usedin this guide but defined in Practice E1527,and acronyms.Section 4is directed at the significance and use of this guide.Section 5discusses the relationship between this guide and PracticeE1527.Section 6describes the users responsibilities under this guide.Sections 7 10
16、consist of the main body of the VES process,includingevaluation and report preparation.Section 11provides information regarding non-scope considerations(see 1.3).1This guide is under the jurisdiction ofASTM Committee E50 on EnvironmentalAssessment,Risk Management and Corrective Action and is the direct responsibil-ity of Subcommittee E50.02 on Real Estate Assessment and Management.Current edition approved Oct.1,2015.Published December 2015.Originallyapproved in 2008.Last previous edition approve
