ASTM_D_6030_-_15.pdf

Designation:D603015Standard Guide forSelection of Methods for Assessing Groundwater or AquiferSensitivity and Vulnerability1This standard is issued under the fixed designation D6030;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This guide covers information needed to select one ormore methods for assessing the sensitivity of groundwater oraquifers and the vulnerability of groundwater or aquifers towater-quality degradation by specific contaminants.1.2 This guide may not be all-inclusive;it offers a series ofoptions and does not specify a course of action.It should not beused as the sole criterion or basis of comparison,and does notreplace professional judgment.1.3 This guide is to be used for evaluating sensitivity andvulnerability methods for purposes of land-use management,water-use management,groundwater protection,governmentregulation,and education.This guide incorporates descriptionsof general classes of methods and selected examples withinthese classes but does not advocate a particular method.1.4 LimitationsThe utility and reliability of the methodsdescribed in this guide depend on the availability,nature,andquality of the data used for the assessment;the skill,knowledge,and judgment of the individuals selecting themethod;the size of the site or region under investigation;andthe intended scale of resulting map products.Because thesemethods are being continually developed and modified,theresults should be used with caution.These techniques,whetheror not they provide a specific numeric value,provide a relativeranking and assessment of sensitivity or vulnerability.However,a relatively low sensitivity or vulnerability for anarea does not preclude the possibility of contamination,nordoes a high sensitivity or vulnerability necessarily mean thatgroundwater or an aquifer is contaminated.1.5 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.6 All observed and calculated values shall conform to theguidelines for significant digits and rounding established inPractice D6026.1.6.1 The procedures used to specify how data are collected/recorded or calculated,in this standard are regarded as theindustry standard.In addition,they are representative of thesignificant digits that generally should be retained.The proce-dures used do not consider material variation,purpose forobtaining the data,special purpose studies,or any consider-ations for the users objectives;and it is common practice toincrease or reduce significant digits of reported data to becommensurate with these considerations.It is beyond the scopeof this standard to consider significant digits used in analyticalmethods for engineering design.1.7 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.8 This guide offers an organized collection of informationor a series of options and does not recommend a specificcourse of action.This document cannot replace education orexperience and should be used in conjunction with professionaljudgment.Not all aspects of this guide may be applicable in allcircumstances.This ASTM standard is not intended to repre-sent or replace the standard of care by which the adequacy ofa given professional service must be judged,nor should thisdocument be applied without consideration of a projects manyunique aspects.The word“Standard”in the title of thisdocument means only that the document has been approvedthrough the ASTM consensus process.2.Referenced Documents2.1 ASTM Standards:2D653 Terminology Relating to Soil,Rock,and ContainedFluidsD5447 Guide forApplication of a Groundwater Flow Modelto a Site-Specific ProblemD5490 Guide for Comparing Groundwater Flow ModelSimulations to Site-Specific Information1This guide is under the jurisdiction ofASTM Committee D18 on Soil and Rockand is the direct responsibility of Subcommittee D18.21 on Groundwater andVadose Zone Investigations.Current edition approved Jan.1,2015.Published February 2015.Originallyapproved in 1996.Last previous edition approved in 2008 as D603096(2008).DOI:10.1520/D6030-15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 D5880 Guide for Subsurface Flow and Transport Mode