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ASTM E1903-97(2002)

(Guide)

Standard Guide for Environmental Site Assessments: Phase II Environmental Site Assessment Process

Standard Guide for Environmental Site Assessments: Phase II Environmental Site Assessment Process

SCOPE
1.1 This guide covers a framework for employing good commercial and customary practices in conducting a Phase II environmental site assessment (ESA) of a parcel of commercial property with respect to the potential presence of a range of contaminants which are within the scope of CERCLA as well as petroleum products.
1.1.1 This guide is intended to provide practical procedural guidance for the continuation of an assessment conducted in accordance with the most recent edition of Practice E 1527 or E 1528, or both. Practice E 1527 is the practice for conducting Phase I ESAs for a parcel of commercial property and Practice E 1528 is the transaction screen practice. Both practices define a process that is intended to constitute "all appropriate inquiry into the previous ownership and uses of a property" to determine whether hazardous substances or petroleum products have been disposed or released there in order to satisfy one element of the innocent purchaser defense to CERCLA liability.
1.1.2 Because this guide for conducting Phase II ESAs describes a process for further evaluating a parcel of commercial property with recognized environmental conditions, as defined in Practices E 1527 and E 1528, users of this guide should understand the requirements and limitations of those practices. It is strongly recommended that the user refer to and apply the guide in concert with Practices E 1527 and E 1528.
1.1.3 This guide has multiple purposes. It is intended to provide assistance to users in satisfying the appropriate inquiry element of CERCLA's innocent purchaser defense, as defined in 42 U.S.C. § 9601(35)(B), where a previous assessment satisfying that element identified recognized environmental conditions. This guide also is intended to assist a user in gathering reliable information about a property's environmental conditions to guide the user's business decisions. However, this guide does not purport to include the level of specificity required of technical standards that govern full characterization of a site's environmental conditions.
1.2 Objectives—The primary objectives of conducting a Phase II ESA are to evaluate the recognized environmental conditions identified in the Phase I ESA or transaction screen process for the purpose of providing sufficient information regarding the nature and extent of contamination to assist in making informed business decisions about the property; and where applicable, providing the level of knowledge necessary to satisfy the innocent purchaser defense under CERCLA.
1.2.1 To achieve these objectives, it may be appropriate to perform more than a single iteration of assessment. The guide fosters an iterative approach to Phase II assessments and allows the user to terminate the Phase II ESA at the point where sufficient data have been generated to meet the user's objectives.
1.2.2 At the completion of a Phase II ESA, the environmental professional should be able to conclude, at a minimum, that either (a) the ESA has provided sufficient information to render a professional opinion that there is no reasonable basis to suspect the presence of hazardous substances or petroleum products at the property associated with the recognized environmental conditions under assessment, or (b) the ESA has confirmed the presence of hazardous substances or petroleum products at the property under conditions that indicate disposal or release. If the information developed in the ESA is insufficient for the environmental professional to reach either of these conclusions, the environmental professional may recommend additional iterations of assessment if warranted to meet the objectives of the user. If the environmental professional reasonably suspects that unconfirmed hazardous substance or petroleum releases remain but concludes that further reasonable assessment is not expected to provide additional information of significant value, he may recommend that further assessment is not warranted. In su...

General Information

Status
Historical
Publication Date
09-Dec-1997
ICS
13.020.30 - Environmental impact assessment
Technical Committee
E50 - Environmental Assessment, Risk Management and Corrective Action
Drafting Committee
E50.02 - Real Estate Assessment and Management
Current Stage
Ref Project

Relations

Replaces
ASTM E1903-97 - Standard Guide for Environmental Site Assessments: Phase II Environmental Site Assessment Process
Effective Date
10-Dec-1997
Referred By
ASTM E2081-22 - Standard Guide for Risk-Based Corrective Action
Effective Date
10-Dec-1997
Referred By
ASTM E2600-22 - Standard Guide for Vapor Encroachment Screening on Property Involved in Real Estate Transactions
Effective Date
10-Dec-1997
Referred By
ASTM D6235-18 - Standard Practice for Expedited Site Characterization of Vadose Zone and Groundwater Contamination at Hazardous Waste Contaminated Sites
Effective Date
10-Dec-1997
Referred By
ASTM E2531-06(2020) - Standard Guide for Development of Conceptual Site Models and Remediation Strategies for Light Nonaqueous-Phase Liquids Released to the Subsurface
Effective Date
10-Dec-1997
Referred By
ASTM E3358-23a - Standard Guide for Per- and Polyfluoroalkyl Substances Site Screening and Initial Characterization
Effective Date
10-Dec-1997
Referred By
ASTM E2790-20 - Standard Guide for Identifying and Complying With Continuing Obligations
Effective Date
10-Dec-1997
Referred By
ASTM E2876-13(2020) - Standard Guide for Integrating Sustainable Objectives into Cleanup
Effective Date
10-Dec-1997

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ASTM E1903-97(2002) - Standard Guide for Environmental Site Assessments: Phase II Environmental Site Assessment ProcessASTM E1903-97(2002) - Standard Guide for Environmental Site Assessments: Phase II Environmental Site Assessment Process
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ASTM E1903-97(2002) - Standard Guide for Environmental Site Assessments: Phase II Environmental Site Assessment Process
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:E1903–97 (Reapproved 2002)
Standard Guide for
Environmental Site Assessments: Phase II Environmental
1
Site Assessment Process
This standard is issued under the fixed designation E1903; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope satisfying that element identified recognized environmental
2 conditions. This guide also is intended to assist a user in
1.1 This guide covers a framework for employing good
gathering reliable information about a property’s environmen-
commercial and customary practices in conducting a Phase II
tal conditions to guide the user’s business decisions. However,
environmentalsiteassessment(ESA)ofaparcelofcommercial
this guide does not purport to include the level of specificity
property with respect to the potential presence of a range of
requiredoftechnicalstandardsthatgovernfullcharacterization
contaminants which are within the scope of CERCLA as well
of a site’s environmental conditions.
as petroleum products.
1.2 Objectives—The primary objectives of conducting a
1.1.1 This guide is intended to provide practical procedural
Phase II ESA are to evaluate the recognized environmental
guidance for the continuation of an assessment conducted in
conditions identified in the Phase I ESA or transaction screen
accordance with the most recent edition of Practice E1527 or
process for the purpose of providing sufficient information
E1528, or both. Practice E1527 is the practice for conducting
regarding the nature and extent of contamination to assist in
Phase I ESAs for a parcel of commercial property and Practice
making informed business decisions about the property; and
E1528 is the transaction screen practice. Both practices define
where applicable, providing the level of knowledge necessary
a process that is intended to constitute “all appropriate inquiry
to satisfy the innocent purchaser defense under CERCLA.
into the previous ownership and uses of a property” to
1.2.1 To achieve these objectives, it may be appropriate to
determinewhetherhazardoussubstancesorpetroleumproducts
perform more than a single iteration of assessment. The guide
have been disposed or released there in order to satisfy one
fostersaniterativeapproachtoPhaseIIassessmentsandallows
element of the innocent purchaser defense to CERCLA liabil-
the user to terminate the Phase II ESA at the point where
ity.
sufficient data have been generated to meet the user’s objec-
1.1.2 Because this guide for conducting Phase II ESAs
tives.
describes a process for further evaluating a parcel of commer-
1.2.2 At the completion of a Phase II ESA, the environmen-
cial property with recognized environmental conditions, as
tal professional should be able to conclude, at a minimum, that
defined in Practices E1527 and E1528, users of this guide
either (a)theESAhasprovidedsufficientinformationtorender
should understand the requirements and limitations of those
a professional opinion that there is no reasonable basis to
practices. It is strongly recommended that the user refer to and
suspect the presence of hazardous substances or petroleum
apply the guide in concert with Practices E1527 and E1528.
products at the property associated with the recognized envi-
1.1.3 This guide has multiple purposes. It is intended to
ronmental conditions under assessment, or (b) the ESA has
provide assistance to users in satisfying the appropriate inquiry
confirmed the presence of hazardous substances or petroleum
element of CERCLA’s innocent purchaser defense, as defined
products at the property under conditions that indicate disposal
in 42 U.S.C. § 9601(35)(B), where a previous assessment
or release. If the information developed in the ESA is insuffi-
cientfortheenvironmentalprofessionaltoreacheitherofthese
1
ThisguideisunderthejurisdictionofASTMCommitteeE50onEnvironmental
conclusions, the environmental professional may recommend
Assessment and is the direct responsibility of Subcommittee E50.02 on Commercial
additional iterations of assessment if warranted to meet the
Real Estate Transactions.
objectives of the user. If the environmental professional rea-
Current edition approved Dec. 10, 1997. Published February 1998. DOI:
10.1520/E1903-97R02.
sonably suspects that unconfirmed hazardous substance or
2
As used herein, a “Standard” is a document that has been developed and
petroleum releases remain but concludes that further reason-
established within the consensus principles of the Society and that meets the
able assessment is not expected to provide additional informa-
approval requirements of ASTM procedures and regulations. A“ Guide”
...

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4.1 Intended Use:  
4.1.1 This guide may be used by various parties involved in sediment corrective action programs, including regulatory agencies, project sponsors, environmental consultants, toxicologists, risk assessors, site remediation professionals, environmental contractors, and other stakeholders.  
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4.6.1 When applying this guide, the user should undertake a systematic project planning and sco...
SCOPE
1.1 This guide provides an overarching framework for the development of representative sediment background concentrations at contaminated sediment sites. It is intended to inform, complement, and support but not supersede the guidelines established by local, state, tribal, federal, or international agencies.  
1.2 Technically defensible representative sediment background concentrations are critical for several purposes (Guide E3242) (1)2. These include sediment site delineation, establishing remedial goals, remedy selection, assessment of risks posed by representative background concentrations, and establishing appropriate post-remedial monitoring plans.  
1.3 As part of the overall framework presented in this guide, Guide E3240 provides a general discussion of how Conceptual Site Model (CSM) development fits into the risk-based corrective action framework for contaminated sediment sites. However, not all elements of a sediment CSM need to be considered when developing representative sediment background concentrations; those that do are discussed in detail in Section 7 of this guide.  
1.3.1 As additional data are collected and analyzed, the CSM should be updated as needed.  
1.3.2 This guide is related to several other guides. Guide E3344 describes how to select an appropriate background reference area(s). Guide E3164 covers the sampling methodologies used in the field to obtain sediment samples (whether from the sediment site or background reference area[s]), and Guide E3163 discusses appropriate laboratory methodologies to use for the chemical analysis of potential contaminants of concern (PCOCs) in sediment samples. Guide E3242 describes how to evaluate candidate background data to obtain representative background data sets (including statistical, geochemical, and forensic considerations) and then how to use them to calculate representative sediment background concentrations. Relevant content contained in Guides ...

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ASTM E1528-22(Practice)
Standard Practice for Limited Environmental Due Diligence: Transaction Screen Process

SIGNIFICANCE AND USE
4.1 Uses—This practice sets forth a procedure for conducting limited environmental due diligence. This practice is intended for use on a voluntary basis by parties who wish to assess the environmental condition of a subject property where a Phase I Environmental Site Assessment is, initially, deemed to be unnecessary by the user and the parties do not seek CERCLA LLPs. This practice is intended primarily as a commercially prudent or reasonable approach to conducting an inquiry designed to identify potential environmental concerns in connection with a subject property.  
4.2 Clarifications on Use:  
4.2.1 Use Not Intended for CERCLA Liability Protection—This document is not intended to permit a user to satisfy CERCLA LLPs, that is, the practices that constitute all appropriate inquiries into the previous ownership and uses of the subject property consistent with “generally accepted good commercial and customary standards and practices” as defined in 42 U.S.C. §9601(35)(B).  
4.2.2 Transaction Screen Does Not Identify Recognized Environmental Conditions—This practice does not define a scope of assessment sufficient to identify recognized environmental conditions as defined in Practice E1527 and Practice E2247.  
4.2.3 Residential Tenants/Purchasers and Others—Although this practice is not intended for residential purposes, it may be used at the user’s discretion for residential tenants of multifamily residential buildings, tenants of single-family homes or other residential real estate, or purchasers of dwellings for residential use to conduct a transaction screen in connection with these transactions.  
4.2.4 Site-Specific—This practice is site-specific in that it relates to assessment of environmental conditions at a subject property. Consequently, this practice does not address many additional issues raised in transactions such as purchases of business entities, or interests therein, or of their assets, that may well involve environmental liabilities pertaini...
SCOPE
1.1 Purpose—The purpose of this practice is to define a good practice in the United States of America for conducting a transaction screen2 for a subject property where the user wishes to conduct limited environmental due diligence (that is, less than a  Phase I Environmental Site Assessment). If the driving force behind the environmental due diligence is a desire to qualify for one of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) Landowner Liability Protections (LLPs), this practice should not be applied. Instead, the ASTM E1527: Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process or ASTM E2247: Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process for Forestland or Rural Property may be used.  
1.1.1 This practice will not satisfy the requirement to conduct all appropriate inquiries into the previous ownership and uses of the subject property consistent with “generally accepted good commercial and customary standards and practices” as defined in 42 U.S.C. §9601(35)(B) to qualify for one of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) Landowner Liability Protections (LLPs). Users who desire to conduct environmental due diligence to qualify for one of the CERCLA  LLPs should conduct assessment activities in conformity with “Standards and Practices for All Appropriate Inquiries,” 40 C.F.R. Part 312; ASTM E1527: Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process or ASTM E2247: Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process for Forestland or Rural Property.  
1.2 An evaluation of business environmental risk associated with a parcel of commercial real estate may necessitate investigation beyond that identified in this practice. See Sections 1.4 and 9.  
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1.1 Purpose—The purpose of this practice is to define good commercial and customary practice in the United States of America for conducting an environmental site assessment2 of a parcel of commercial real estate with respect to the range of contaminants within the scope of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) (42 U.S.C. § 9601) and petroleum products. As such, this practice is intended to permit a user to satisfy one of the requirements to qualify for the innocent landowner,  contiguous property owner, or bona fide prospective purchaser limitations on CERCLA liability (hereinafter, the “landowner liability protections,” or “LLPs”): that is, the practice that constitutes all appropriate inquiries into the previous ownership and uses of the property consistent with good commercial and customary standards and practices as defined at 42 U.S.C. § 9601(35)(B). (See Appendix X1 for an outline of CERCLA’s liability and defense provisions.) Controlled substances are not included within the scope of this practice. Persons conducting an environmental site assessment as part of an EPA Brownfields Assessment and Characterization Grant awarded under CERCLA 42 U.S.C. § 9604(k)(2)(B) must include controlled substances as defined in the Controlled Substances Act (21 U.S.C. § 802) within the scope of the assessment investigations to the extent directed in the terms and conditions of the specific grant or cooperative agreement. Additionally, an evaluation of business environmental risk  (BER) associated with a parcel of commercial real estate may necessitate investigation beyond that identified in this practice (see 1.4 and Section 13).  
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5.1 Protection of an aquatic species requires prevention of unacceptable effects on populations in natural habitats. Toxicity tests are conducted to provide data that may be used to predict what changes in numbers and weights of individuals might result from similar exposure to the test material in the natural aquatic environment. Information might also be obtained on the effects of the material on the health of the species.  
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SCOPE
1.1 This guide covers procedures for obtaining laboratory data concerning the adverse effects of a test material (added to dilution water, but not to food) on Daphnia magna Straus, 1820, during continuous exposure throughout a life-cycle using the renewal or flow-through techniques. These procedures also should be useful for conducting life-cycle toxicity tests with other invertebrate species and cladocerans from the same genus (for example, Daphnia pulex), although modifications might be necessary.  
1.2 These procedures are applicable to most chemicals, either individually or in formulations, commercial products, or known mixtures. With appropriate modifications, these procedures can be used to conduct tests on temperature, dissolved oxygen, pH, and on such materials as aqueous effluents (also see Guide E1192), leachates, oils, particulate matter, sediments, and surface waters. The technique, (renewal or flow-through), will be selected based on the chemical characteristics of the test material such as high oxygen demand, volatility, susceptibility to transformation (biologically or chemically), or sorption to glass.  
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4.1 This guide is intended for use within a RBCA process or other risk-based framework for protection of human health and the environment that is based on an evaluation of sources, exposure pathways, and receptors.  
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1.1 This guide covers the selection of appropriate remedial actions at sites where a release of chemicals (for example, vapor-phase, dissolved-phase, or non-aqueous phase liquids (NAPL)) into the environment has occurred. This overall remedy selection process is illustrated in Fig. 1. The guide is intended to be applied within a risk-based corrective action (RBCA) framework.
FIG. 1 Remedy Selection Process  
1.2 The purpose of this guide is to facilitate the selection of acceptable remedial actions and to minimize bad decisions leading to the selection of remedial actions that do not satisfy both the risk-based remedial action objectives and the non-risk remedial action objectives.  
1.3 This guide is intended to be applied at sites that require a remedial action to address unacceptable human heath or ecological risks, other regulatory requirements, and/or other unacceptable site conditions. Prior to use of this guide, a site assessment should be completed resulting in: (1) the establishment of remedial action objectives, (2) a determination that a remedial action is required to achieve the remedial action objectives, (3) an identification of site areas requiring a remedial action, and (4) a conceptual site model that reflects the results of the site assessment. The risk-based remedial action objectives are assumed to have been established using RBCA or another risk-based assessment method that results in the identification of appropriate remedial action objectives based on an evaluation of sources, exposure pathways, and potential receptors. Remedial action objectives may be established using Guide E1739, Guide E2081, and/or Guide E2205. In addition, applicable federal, state, and local regulations, statutes, and policies should be followed and should form the basis for determining risk-based and non-risk remedial action objectives. The remedial action objectives may include resource protection standards and the prevention of aesthetic or nuisance impacts in addition to protection of human health and the environment.  
1.4 Each risk-based remedial action objective for an exposure pathway will typically include numeric remedial action levels for each chemical of concern (COC). Remedial action levels may also be developed for non-risk remedial action objectives such as resource protection standards. The non-risk remedial action levels may include thickness or mobility criteria for NAPL. The selected remedy must be effective and timely for each remedial action objective based on the consideration of the associated exposure pathway or resource protection standard.  
1.5 To facilitate the selection of acceptable remedial actions, this guide establishes a process for remedy selection (Fig. 2) that involves:
FIG. 2 Remedy Selection Flowchart  
FIG. 2 Remedy Selection Flowchart (continued)  
1.5.1 Development of risk-based remedial action objectives that includes identification of complete exposure pathways and numeric remedial action levels (Section 5).  
1.5.2 Development of non-risk remedial action objectives based on resource protection and other non-risk considerations...

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Standard Guide for Determination of Representative Sediment Background Concentrations

SIGNIFICANCE AND USE
4.1 Intended Use: This guide may be used by various parties involved in sediment corrective action programs, including regulatory agencies, project sponsors, environmental consultants, toxicologists, risk assessors, site remediation professionals, environmental contractors, and other stakeholders.  
4.2 Related ASTM Standards: This guide is related to Guide E3164, which addresses corrective action monitoring before, during, and after sediment remediation activities; as well as Guide E3163, concerning sediment analytical techniques used during sediment programs.  
4.3 Use of Representative Background to Set a Boundary: Representative background concentrations for sediments can be used to delineate a sediment corrective action, establishing the boundary of the sediment corrective action by distinguishing site-related impacts from representative background concentrations.  
4.4 Use of Representative Background to Establish Cleanup Levels: Representative background concentrations for sediments can also be used to establish cleanup levels for use in sediment corrective actions. In cases where risk-based sediment cleanup levels are below representative background concentrations, background concentrations are typically used as the cleanup level. This ensures that the cleanup levels are sustainable. Any recontamination from ongoing sources will eventually result in surface sediment concentrations greater than the risk-based cleanup level, but the surface sediment should still meet a cleanup level based on representative background concentrations, even after recontamination.  
4.5 Use of Representative Background in Risk Assessments: Representative background concentrations can be used in the risk assessment process (including human and ecological risk assessments) to understand risks posed by background levels of contaminants to human health and the environment, and the incremental risks posed by site-related releases and/or activities that result in sediment concentrat...
SCOPE
1.1 This guide focuses on the approach for determination of representative sediment background concentrations used for remedial actions performed under various regulatory programs, including the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). Although many of the references cited in this guide are CERCLA oriented, the guide is applicable to remedial actions performed under local, state, federal, and international cleanup programs. However, the guide does not describe requirements for each jurisdiction. The requirements for the regulatory entity under which the cleanup is performed should be reviewed to confirm compliance.  
1.2 This guide provides a framework, including specific statistical and geochemical considerations, as well as case studies, demonstrating the approach to determine representative sediment background concentrations. This guide is intended to inform, complement, and support, but not supersede, local, state, federal, or international regulations.  
1.2.1 This guide does not address methods and means of data collection (Guide E3163, Guide E3164.)  
1.2.2 This guide is designed to apply to contaminated sediment sites where sediment data have been collected and are readily available. Additionally, this guide assumes that risk assessments have been performed, so that the contaminants/chemicals of interest that exceed risk-based thresholds have been identified.  
1.2.3 Furthermore, this guide presumes that risk-based thresholds identified are low enough to pose corrective action implementation challenges, and/or the site is subject to recontamination from ongoing anthropogenic and/or natural sources that are not controlled. In both cases, representative sediment background concentrations will be useful for determining the extent of corrective remedial actions (when used as remedial goals), evaluating risks posed by representative background concentrations, and establishing...

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Standard Practice for Environmental Site Assessments: Phase II Environmental Site Assessment Process

SIGNIFICANCE AND USE
4.1 Uses:  
4.1.1 This practice is intended for use on a voluntary basis by parties who wish to evaluate known releases or  likely release areas identified by the user or Phase II Assessor, and/or to assess the presence or likely presence  of substances, for legal or business reasons such as those described in 1.2.  
4.1.2 This practice is intended to meet the business community's need for a written, practical reference describing a scientifically sound approach to investigating a property to evaluate the presence  or likely presence of a substance. It is impossible to generalize about the contexts in which a user may wish to conduct such investigations or the degree of confidence a user may require in the results. In any context, this practice, being rooted in sound scientific methodology, can assist users in achieving an objective and defensible assessment.
4.1.2.1 This practice does not address the evaluation of business environmental risks in light of data collected through the Phase II ESA process. Such evaluation is a function of site- and transaction-specific variables, and of the user’s objectives and risk tolerance. This practice contemplates that the Phase II ESA process will be planned and conducted with such variables in mind, and that the user will evaluate legal, business and environmental risks in light of known data relating to the particular site and transaction, and in consultation with legal and business advisors as well as the Phase II Assessor.
4.1.2.2 Likewise, this practice does not define the threshold levels at which target analytes pose a concern of significance to the user. Users may apply this practice not only in light of applicable regulatory criteria and relevant liability principles, but also to meet self-defined objectives.
4.1.2.3 If a Phase II ESA conducted in accordance with this practice provides sufficient information from which the Phase II Assessor can conclude, consistent with the scientific method, that the question...
SCOPE
1.1 This practice2 covers a process for conducting a Phase II environmental site assessment (ESA) of a parcel of property with respect to the presence or the likely presence of substances including but not limited to those within the scope of the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) (e.g., hazardous substances), pollutants, contaminants, petroleum and petroleum products, and controlled substances and constituents thereof. It specifies procedures based on the scientific method to characterize  property conditions in an objective, representative, reproducible, and defensible manner. To promote clarity in defining Phase II ESA objectives and transparency in communicating and interpreting  Phase II ESA results, this practice specifies adherence to requirements for documenting the scope of assessment and constraints on the conduct of the assessment process.  
1.1.1 A user's interest in the presence or likely presence of substances in environmental media at a property may arise in a wide variety of legal, regulatory, and commercial contexts, and may involve diverse objectives including those listed in 1.2. This practice contemplates that the user and the Phase II Assessor will consult to define the scope and objectives of investigation in light of relevant factors, including without limitation the substances released or possibly released at the property, the nature of the concerns presented by their  presence or likely presence, the behavior , fate and transport characteristics of substances released or possibly released, the portion of the property to be investigated, the information already available, the degree of confidence needed or desired in the results, the degree of investigatory sampling and chemical testing needed to achieve such confidence, and any applicable time and resource constraints. This practice requires that Phase II activities be conducted so that the resulting s...

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ASTM
ASTM E3163-18(Guide)
Standard Guide for Selection and Application of Analytical Methods and Procedures Used during Sediment Corrective Action

SIGNIFICANCE AND USE
4.1 This guide should be used to support existing decision frameworks for the selection and application of analytical procedures to sediment programs.  
4.2 Activities described in this guide should be conducted by persons familiar with current sediment site characterization and remediation techniques, sediment remediation science and technology, toxicology concepts, risk and exposure assessment methodologies, and ecological evaluation protocols.  
4.3 This guide may be used by various parties involved in sediment programs, including regulatory agencies, project sponsors, environmental consultants, toxicologists, risk assessors, site remediation professionals, environmental contractors, analytical testing laboratories, data validators, data reviewers and users, and other stakeholders, which may include, but are not limited to, owners, buyers, developers, lenders, insurers, government agencies, and community members and groups.  
4.4 This guide is not intended to replace or supersede federal, state, local or international regulatory requirements. Instead this guide may be used to complement and support such requirements.  
4.5 This guide provides a decision framework based on over-arching features and elements that should be customized by the user based on site-specific conditions, regulatory context, and sediment program objectives for a particular site. This guide should not be used alone as a prescriptive checklist.  
4.6 The selection and application of analytical methods and test procedures for sediment programs is an evolving science. This guide provides a systematic but flexible decision framework to accommodate variations in approaches by regulatory agency and by user based on project objectives, site complexity, unique site features, programmatic and regulatory requirements, newly developed guidance, newly published scientific research, use of alternative scientifically-based methods and procedures, changes in regulatory criteria, advances in scientific...
SCOPE
1.1 This is a guide for the selection and application of a range of analytical methods and testing procedures that may be used during sediment programs, including physical properties testing, chemical analytical methods, passive sampling procedures, bioassays and toxicity testing, environmental forensics methods and procedures, and methods development procedures for sediment programs.  
1.2 Sediment programs vary greatly in terms of environmental complexity, physical, chemical and biological characteristics, human health and ecological risk concerns, and geographic and regulatory context. This guide provides information for the selection and application of analytical methods and testing protocols applicable to a wide range of sediment programs.  
1.3 This guide describes widely accepted considerations and best practices used in the selection and application of analytical procedures used during sediment programs. This guide supports and complements existing regulations and technical guidance.  
1.4 This guide is designed for general application to a wide range of sediment programs performed under international, federal, state and local environmental programs. This guide describes the selection and application of analytical methods and test procedures, not the requirements for specific regulatory jurisdictions. This guide compliments but does not replace regulatory agency requirements.  
1.5 This guide may be used for a wide range of sediment programs, including programs with overlapping regulatory jurisdictions, programs without a clearly established regulatory framework, voluntary programs, Brownfield programs, and international programs. The users of this guide should be aware of the appropriate regulatory requirements that apply to sediment programs. The user should consult applicable regulatory agency requirements to identify appropriate technical decision criteria and seek regulatory approvals, as necessary, prio...

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ASTM
ASTM E3136-18(Guide)
Standard Guide for Climate Resiliency in Water Resources

SIGNIFICANCE AND USE
4.1 This Guide addresses issues related solely to resiliency strategies and the development of a plan to address extreme weather and related physical and chemical changes to water resources. This guide does not include specific advice on risk assessment, however, references are provided in Appendix X1. Adaptation and resiliency design strategies and planning may consist of a wide variety of actions by individuals, communities, or organizations to prepare for, or respond to, the impacts of chronic and extreme natural and manmade events.  
4.2 Example Users:  
4.2.1 Small business or enterprise owners;  
4.2.2 Service industry employees;  
4.2.3 Federal, tribal, state or municipal facility staff and regulators, including departments of health; water, sewer and fire departments;  
4.2.4 Financial and insurance institutions;  
4.2.5 Public works staff, including water systems, groundwater supplies, surface water supplies, stormwater systems, wastewater systems, publically owned treatment works, and agriculture water management agencies;  
4.2.6 Consultants, auditors, state, municipal and private inspectors and compliance assistance personnel;  
4.2.7 Educational facilities;  
4.2.8 Property, buildings and grounds management, including landscaping staff;  
4.2.9 Non-regulatory government agencies, such as the military;  
4.2.10 Wildlife management entities including government, tribal, and NGOs;  
4.2.11 Cities, towns and counties, especially in developing climate vulnerability strategies and plans;  
4.2.12 Commercial and residential real estate property developers, including redevelopers;  
4.2.13 Non-profits, community groups, and property owners.  
4.3 This Guide is a first step in crafting a simplified framework for managing and communicating risks. The framework describes a process by which the user may categorize current climate risks and a priority approach to manage those risks. The technique classifies common responses for both mitigation and re...
SCOPE
1.1 Overview—Water resources in North America and other areas are subject to various impacts from chronic weather patterns, as well as more frequent extreme weather events. These include drought, flooding, changes in stream patterns, increased or decreased run-off, and changes in water quality. Water resources include both man-made and natural reservoirs, rivers, streams, groundwater, and storage ponds. The infrastructure for water supply, wastewater treatment, fire-fighting and agricultural uses are also subject to chronic weather patterns and more frequent extreme weather related events. This guide will provide an explanation of techniques users may employ to build resiliency and a planning outline for municipalities, states and private industry in order to ensure safe, future, effective availability of water resources.  
1.2 Purpose—The purpose of this guide is to provide a series of options that organizations may implement to prepare for the environmental impacts and risks from changing environmental conditions, chronic weather patterns, natural or man-made disasters, and extreme weather events. This guide also encourages consistent management of risks from natural disasters to water resources. The guide presents practices and recommendations based on regions and planning horizons that provide institutional and engineering actions to reduce the physical and financial vulnerabilities attributable to changing environmental conditions. It presents available technologies, institutional controls, and engineering controls that can be implemented by individuals and organizations seeking to increase their adaptive and resiliency capacity.  
1.2.1 The guide also provides some high-level options for the planning, selection, implementation, and review of strategies in order to ensure that the approach continues to be environmentally responsible, in the best interest of the public, reasonable, and cost effective. This guide ca...

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ASTM
ASTM E3382-23(Guide)
Standard Guide for Developing Representative Background Concentrations at Sediment Sites — Framework Overview, Including Conceptual Site Model Considerations

SIGNIFICANCE AND USE
4.1 Intended Use:  
4.1.1 This guide may be used by various parties involved in sediment corrective action programs, including regulatory agencies, project sponsors, environmental consultants, toxicologists, risk assessors, site remediation professionals, environmental contractors, and other stakeholders.  
4.2 Updates to CSM:  
4.2.1 The CSM should be updated as needed and refined to describe the physical properties, chemical composition and occurrence, biological features, and environmental conditions of the sediment corrective action project (Guide E1689).  
4.3 Reference Material:  
4.3.1 This guide should be used in conjunction with other ASTM guides listed in 2.1 (especially Guides E3163, E3164, E3240, E3242, and E3344), as well as the material in the References section (including (1)).  
4.4 Flexible Site-Specific Implementation:  
4.4.1 This guide provides a systematic but flexible framework to accommodate variations in approaches by regulatory agencies and by the user based on project objectives, site complexity, unique site features, regulatory requirements, newly developed guidance, newly published scientific research, changes in regulatory criteria, advances in scientific knowledge and technical capability, and unforeseen circumstances.  
4.5 Regulatory Frameworks:  
4.5.1 This guide is intended to be applicable to a broad range of local, state, tribal, federal, or international jurisdictions, each with its own unique regulatory framework. As such, this guide does not provide a detailed discussion of the requirements or guidance associated with any of these regulatory frameworks, nor is it intended to supplant applicable regulations and guidance. The user of this guide will need to be aware of the regulatory requirements and guidance in the jurisdiction where the work is being performed.  
4.6 Systematic Project Planning and Scoping Process:  
4.6.1 When applying this guide, the user should undertake a systematic project planning and sco...
SCOPE
1.1 This guide provides an overarching framework for the development of representative sediment background concentrations at contaminated sediment sites. It is intended to inform, complement, and support but not supersede the guidelines established by local, state, tribal, federal, or international agencies.  
1.2 Technically defensible representative sediment background concentrations are critical for several purposes (Guide E3242) (1)2. These include sediment site delineation, establishing remedial goals, remedy selection, assessment of risks posed by representative background concentrations, and establishing appropriate post-remedial monitoring plans.  
1.3 As part of the overall framework presented in this guide, Guide E3240 provides a general discussion of how Conceptual Site Model (CSM) development fits into the risk-based corrective action framework for contaminated sediment sites. However, not all elements of a sediment CSM need to be considered when developing representative sediment background concentrations; those that do are discussed in detail in Section 7 of this guide.  
1.3.1 As additional data are collected and analyzed, the CSM should be updated as needed.  
1.3.2 This guide is related to several other guides. Guide E3344 describes how to select an appropriate background reference area(s). Guide E3164 covers the sampling methodologies used in the field to obtain sediment samples (whether from the sediment site or background reference area[s]), and Guide E3163 discusses appropriate laboratory methodologies to use for the chemical analysis of potential contaminants of concern (PCOCs) in sediment samples. Guide E3242 describes how to evaluate candidate background data to obtain representative background data sets (including statistical, geochemical, and forensic considerations) and then how to use them to calculate representative sediment background concentrations. Relevant content contained in Guides ...

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