Technologies, Contaminants, and Issue Areas on

EMS reviews scientific literature, writes overviews, and creates, updates and maintains more than 70 focus area webpages pertaining to hazardous waste investigation and cleanup on EPA's website. The dense non-aqueous phase liquids (DNAPLs) focus area, for example, compiles policy and guidance as well as other resources on the chemistry and behavior of DNAPLs, their toxicology, characterization, and treatment in the environment. Our sediments focus area includes resources on conceptual site models, fate and transport of chemicals, and risk assessment for sites with contaminated sediments. Our focus area on mining sites includes informs site managers, regulatory agencies, consultants, and the general public of technologies and resources related to the assessment, characterization, cleanup, and revitalization of active, closed, and abandoned mining sites EcoTools is an example of a focus area we developed specifically with the public in mind, as well as environmental practitioners interested in ecological reuse of contaminated lands. It explains the benefits of ecological land reuse, how reuse can sequester carbon, the types of plants used for revegetation, growing gardens in urban soil, and other relevant topics.

Radiological Laboratory Sample Analysis Guide for Incidents of National Significance — Radionuclides in Water

EMS created this guide for EPA's National Analytical Radiation Environmental Laboratory (formerly the National Air and Radiation Environmental Laboratory) as part of a series designed to provide field response personnel and laboratory personnel with likely radioanalytical requirements, decision paths, and default data quality and measurement quality objectives for samples taken after a radiological or nuclear incident, such as that caused by a terrorist attack. Subsequent reports in this series include "Radiological Laboratory Sample Analysis Guide for Incidents of National Significance—Radionuclides in Air," "Method Validation Requirements for Qualifying Methods Used by Radioanalytical Laboratories Participating in Incident Response Activities," and "Radiological Laboratory Sample Analysis Guide for Incidents of National Significance—Gross Sample Screening Analysis."
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Fact Sheet on Evapotranspiration Cover Systems for Waste Containment

EMS researched available literature to summarize technical issues associated with evapotransporation covers, including design considerations, performance monitoring, cost, technology status, and potential limitations on use. The fact sheet provides basic information to site owners and operators, regulators, consulting engineers, and other interested parties about potential design alternatives. It includes an appendix of over 130 examples of full-scale applications. We prepared a separate online database that includes more site-specific information about these sites and s other projects using evapotranspiration covers.
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Methamphetamine: Information for Community Leaders and Concerned Citizens

EMS drafted this general information resource for individuals and organizations addressing the illegal manufacture and use of methamphetamine. It focuses on the health effects of use and exposure to methamphetamine, government programs addressing its use and manufacture, the regulatory setting for cleaning up methamphetamine laboratories, approaches to their cleanup, and effects of illegal drug manufacturing on property values and redevelopment.
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In Situ Treatment Technologies for Contaminated Soil

EMS researched and wrote this report in collaboration with EPA engineers and Remedial Project Managers to summarize a wide variety of in situ technologies for treating contaminated soil in both saturated and unsaturated source zones. These technologies involve applying chemical, biological, or physical processes to the subsurface to degrade, remove, or immobilize contaminants without excavating soil for ex situ treatment. Groundwater Sampling and Monitoring with Direct Push Technologies EMS wrote this guidance document for EPA personnel working on CERCLA, RCRA, and other related cleanup programs to encourage more widespread consideration of direct push technology (DPT) in subsurface investigations by clarifying how DPT can be used to meet a variety of data quality requirements for a variety of site conditions.
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Site Characterization Technologies for DNAPL Investigations

EMS compiled information on the state of technologies available for locating and characterizing sites contaminated with dense non-aqueous phase liquids (DNAPLs), such as chlorinated solvents, creosote mixtures used in wood treating, PCBs, and byproducts from manufactured gas plants. The information helps managers of sites with potential or confirmed DNAPL contamination identify suitable characterization technologies, screen the technologies for potential application, learn about applications at similar sites, and find further information.
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Survey of Technologies for Monitoring Containment Liners and Covers

EMS researched the literature to document and describe both available and potential technologies for detecting releases of landfill leachate through landfill liners as well as technologies for early detection of changes in the integrity of landfill covers. This paper includes examples of where these technologies have been deployed.
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