ASTM E2435 - 05(2010)e1

    Standard Guide for Application of Engineering Controls to Facilitate Use or Redevelopment of Chemical-Affected Properties

    Active Standard ASTM E2435 | Developed by Subcommittee: E50.04

    Book of Standards Volume: 11.05


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    Significance and Use

    Intended Application of GuideThis guide is intended for use at properties that are presently developed or proposed for development for residential, commercial, or industrial purposes but which contain chemical-affected soil, groundwater, air, or other environmental media, which may pose an unacceptable risk to human health. This guide can be used as a tool for planning and implementation of property reuse or redevelopment activities at former commercial/industrial facilities, brownfield properties, or properties containing naturally occurring, chemical-affected environmental media so as to effectively manage potential human exposures to COCs which might otherwise limit productive use of the property.

    Situations Where This Guide May Be AppliedAn engineering control may be needed as part of the development plan when: (1) COCs are present in soil, groundwater, or other environmental media at concentrations posing unacceptable risk(s) to human health per applicable regulatory criteria or a risk-based evaluation; (2) a potentially complete exposure pathway for COCs is likely to exist in the absence of an engineering control or other response measure, and (3) installation and maintenance of the engineering control is determined to be an applicable and cost-effective response action relative to other options. A property should not be excluded from development or redevelopment solely on the basis of chemical-affected media, in general, and chemical-affected groundwater, in particular. If no affected environmental media are identified as having COC concentrations in excess of applicable regulatory standards or risk-based criteria, then engineering controls or other response measures are not required.

    Assumptions for Use of This GuideFor use of this guide, it is assumed that (1) an environmental site assessment has been completed to characterize chemical-affected environmental media, (2) exposures to COCs posing an unacceptable risk to the health of current or future property users have been identified based upon a risk-based corrective action analysis or other evaluation consistent with applicable regulatory requirements, and (3) engineering controls are being considered as a potentially effective and acceptable measure to manage exposures to chemical-affected environmental media remaining in place at the property. This guide assumes that the property is served by a public water supply or other water source so that use of on-site groundwater or surface water resources as a water supply is not necessary.

    Presumptive Use of Engineering ControlsThe design basis for any engineering controls installed depends on the risk to be controlled, nevertheless, if no known risk has been identified, the guide may be implemented at the discretion of the site developer. As a conservative measure to reduce or eliminate potential unidentified exposures (e.g., migration of COCs from adjacent properties with known chemical-affected environmental media), the site developer may choose to install engineering controls in the absence of a detailed site characterization and associated risk-based corrective action analysis. Regardless, the site must be sufficiently characterized as to the types and concentrations of the COCs present in order to design and install engineering controls that will effectively mitigate the potentially complete exposure pathway(s) identified for the site. Upon change in land use, the potential for unacceptable risk should be evaluated and the engineering control modified, if so indicated by the results of the evaluation.

    Expected Qualifications for Persons Applying This GuidePersons applying this guide are expected to be sufficiently knowledgeable in various disciplines, including but not limited to environmental science, property development requirements, or engineering applications, or combination thereof. Such knowledge is required in order to (1) interpret the results of environmental site assessments and risk-based corrective action analyses and (2) identify applicable construction measures and engineering controls, as needed to reduce or eliminate unacceptable human exposures to chemical-affected environmental media while achieving property development goals. Persons implementing this guide are responsible for ensuring that the application of the guide, as well as design, installation, and monitoring and maintenance of engineering controls identified for a site by the guide, are performed, reviewed, or certified, or combination thereof, by persons qualified to complete work of this nature by reason of professional or regulatory certifications, or both.

    Intended Compatibility with Other ASTM GuidesThis guide is intended to be compatible with other ASTM guides related to the investigation and characterization of chemical-affected property and the management of associated human health risks. This guide is consistent with the practices set forth in these other guides but provides a more focused evaluation on engineering controls as measures to manage risk specifically associated with property development activities.

    Limitations on Use of This GuideThis guide provides a general overview of the procedures for evaluation and selection of engineering controls for use in property development or reuse, but does not address the detailed design, installation, operation, or maintenance of these engineering controls. The user is referred to other, more detailed technical design guidelines for proper implementation of such controls on a site-specific basis.

    Situations Not AddressedThis guide does not address other environmental issues or concerns that are not directly related to property development or reuse but which may be required under applicable laws or regulations. Such uses may include groundwater protection, surface water protection, or ecological concerns.

    Costs Associated with Engineering ControlsThe costs for engineering control systems will depend on numerous site specific factors (e.g., area and volume of chemical-affected environmental media, COCs, unacceptable risks to be reduced or eliminated). An exhaustive comparison of costs associated with various engineering control systems is beyond the scope of this guide; however, in order to illustrate the potential cost impact of site development using engineering controls, a case study example is presented in Appendix X4.

    1. Scope

    1.1 This guide presents general considerations for application of engineering controls to facilitate continued use or redevelopment of properties containing chemical-affected soil, groundwater, or other environmental media, due either to chemical releases or naturally-occurring conditions. This guide is not meant to be prescriptive but rather to present considerations for evaluating technologies capable of addressing potential human exposures associated with chemical-affected environmental media.

    1.2 Table 1 lists the considerations that should be taken into account when developing an engineering control in accordance with this guide.

    1.3 This guide is intended for use by real estate developers, civil/structural designers, environmental regulators, industrial parties, environmental consultants, and other persons concerned with residential, commercial, or industrial development of real properties where chemical-affected environmental media are present. The design process should involve the individuals and firms working on various aspects of the specifications for construction, operation, and maintenance. If the site is located on public property, then public participation should be considered during the design process.

    1.4 This guide is directed toward properties where chemical-affected environmental media, associated with either human-influenced activities or naturally-occurring conditions, will remain in place and where active or passive engineering controls will be used to reduce or eliminate exposures that may otherwise pose an unacceptable risk to property users.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    C1193 Guide for Use of Joint Sealants

    C1299 Guide for Use in Selection of Liquid-Applied Sealants

    E1689 Guide for Developing Conceptual Site Models for Contaminated Sites

    E1745 Specification for Plastic Water Vapor Retarders Used in Contact with Soil or Granular Fill under Concrete Slabs

    E1984 Guide for Brownfields Redevelopment

    E2081 Guide for Risk-Based Corrective Action

    E2091 Guide for Use of Activity and Use Limitations, Including Institutional and Engineering Controls

    E2121 Practice for Installing Radon Mitigation Systems in Existing Low-Rise Residential Buildings


    ICS Code

    ICS Number Code 13.020.40 (Pollution, pollution control and conservation)

    UNSPSC Code

    UNSPSC Code 77100000(Environmental management)


    DOI: 10.1520/E2435-05R10E01

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