1、Designation:D704504(Reapproved 2010)Standard Guide forOptimization of Groundwater Monitoring Constituents forDetection Monitoring Programs for RCRA Waste DisposalFacilities1This standard is issued under the fixed designation D7045;the number immediately following the designation indicates the year o
2、foriginal 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.Scope1.1 This standard provides a general method of selectingeffective con
3、stituents for detection monitoring programs atRCRAWaste Disposal Facilities.The process described in thisstandard presents a methodology that takes into considerationphysical and chemical characteristics of the source material(s),the surrounding hydrogeologic regime,and site-specific geo-chemistry t
4、o identify and select those parameters that providemost effective detection of a potential release from a wastemanagement unit(WMU).1.2 In the following sections,complete details of evaluationof effective monitoring constituents for a groundwaterdetection-monitoring program were based on site-specif
5、icwaste characterization.1.3 The statistical methodology described in the followingsections should be used as guidance.Other methods may alsobe appropriate based on site-specific conditions or for moni-toring situations or media that are not presented in thisdocument.1.4 This practice offers an orga
6、nized collection of informa-tion or a series of options and does not recommend a specificcourse of action.This document cannot replace education,experience and professional judgements.Not all aspects of thispractice may be applicable in all circumstances.This ASTMstandard is not intended to represen
7、t or replace the standard ofcare by which the adequacy of a given professional servicemust be judged without consideration of a projects manyunique aspects.The word standard in the title of this documentonly means that the document has been approved through theASTM consensus process.1.5 This standar
8、d 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 requirements prior to use.2.Referenced Documents2.1 ASTM St
9、andards:2D5792 Practice for Generation of Environmental Data Re-lated to Waste Management Activities:Development ofData Quality ObjectivesD6312 Guide for Developing Appropriate Statistical Ap-proaches for Groundwater Detection Monitoring Pro-grams3.Terminology3.1 Definitions:3.1.1 detection monitori
10、ng programa program of monitor-ing for the expressed purpose of determining whether or notthere has been a release of contaminant to groundwater.UnderRCRA,Detection Monitoring involves collection of ground-water samples from compliance point and upgradient monitor-ing wells on a semi-annual basis fo
11、r analysis of hazardousconstituents of concern,as specified under 40 CFR 264.98.Results are evaluated to determine if there is a statisticallysignificant exceedance of the groundwater protection criteriaand/or background.At non-RCRA sites,monitoring is con-ducted in a similar manner and results are
12、compared to criteriato determine if there is a statistically significant exceedance.3.1.2 indicator constituentsa class of analytes that,whendetected in significant concentrations,provide an indication ofa change in organic or inorganic geochemistry that may befrom a waste source and supports furthe
13、r characterization.3.1.3 leachatea liquid that has passed through or emergedfrom solid waste and contains soluble,suspended,or misciblematerials removed from such waste.1This guide is under the jurisdiction ofASTM Committee D18 on Soil and Rockand is the direct responsibility of Subcommittee D18.21
14、on Groundwater andVadose Zone Investigations.Current edition approved July 1,2010.Published September 2010.Originallyapproved in 2004.Last previous edition approved in 2004 as D704504.DOI:10.1520/D7045-04R10.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer S
15、ervice at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.4 nonparametric a term referring to a statis
16、tical tech-nique in which the probability distribution of the constituent inthe population is unknown or is not restricted to be of aspecified form.3.1.5 nonparametric prediction limitthe largest(or secondlargest)of n background samples.The confidence level asso-ciated with the nonparametric prediction limit is a function ofn,m,and k.3.1.6 outliera measurement that is statistically inconsis-tent with the distribution of other measurements from which itwas drawn.3.1.7 practical quantitation limit
