![]() (a) There is a presumption of public accessibility to all public records, subject only to the following categories of information which are specifically exempt from disclosure under this article: Lists of acronyms, glossary terms, and references cited in the documents are also available on this website.View ยง29B-1-4 in new website CHAPTER 29B. ![]() ITRC also produced a Risk Communications Toolkit that can be applied to emerging contaminants and 1,4-dioxane issues. While every effort was made to keep the information accessible to a wide audience, it is assumed the reader has some basic technical background in chemistry, environmental sciences, risk assessment, and environmental remediation. The document was developed by a team of over 200 environmental practitioners drawn from state and federal government, academia, industry, environmental consulting, and public interest groups. The documents are designed for state and federal environmental staff, project managers, and other stakeholders to gain knowledge of 1,4-dioxane history and potential sources, regulatory framework, environmental fate and transport, investigation strategies, sampling and analysis, toxicity and risk assessment, and remediation and treatment technologies. Each document can be downloaded as a PDF. The web-based nature of this document lends itself to updating of key information in this rapidly evolving subject. It is the intention of ITRC to periodically update the document as significant new information and regulatory approaches for 1,4-dioxane develop. Links within the online document help the reader locate interrelated topics. This Interstate Technology and Regulatory Council (ITRC) online documentation includes the 1,4-Dioxane Fact Sheets, Guidance Document, and six-part modular training courses prepared by the ITRC 1,4-Dioxane Team. Remediation and Treatment Technologies 6.1 Characteristics That Affect Treatment Selection 6.2 Drinking Water and Wastewater Treatment 6.3 Soil/Vadose Zone Treatment 6.4 Ex Situ Groundwater Treatment 6.5 In Situ Groundwater Treatment Case Studies Fact Sheets References Appendix A: Summary of State Regulations, Policies, and Guidance for 1,4-Dioxane Appendix B: 1,4-Dioxane Identifiers and the Physical and Chemical Properties of 1,4-Dioxane Appendix C: Team Contacts Appendix D: Glossary Appendix E: Acronyms Document Feedback Remediation and Treatment Technologies 6. Toxicity and Risk Assessment 5.1 Human Exposure Assessment 5.2 Human Toxicity 5.3 Ecological Exposure and Toxicity 5.4 Risk Characterization and Uncertainty 5.5 Risk Communication 6. ![]() Sampling and Analysis 4.1 1,4-Dioxane Sampling 4.2 1,4-Dioxane Analysis 4.3 1,4-Dioxane Data Evaluation 5. Environmental Fate, Transport, and Investigative Strategies 3.1 Chemical and Physical Properties 3.2 Considerations for Developing or Refining a CSM for 1,4-Dioxane 4. Regulatory Framework 2.1 Federal Regulation of 1,4-Dioxane 2.2 State Regulation of 1,4-Dioxane 2.3 International Regulation 3 Environmental Fate, Transport, and Investigative Strategies 3. ![]() History of Use and Potential Sources 1.1 History of 1,4-Dioxane Production 1.2 Uses of 1,4-Dioxane 1.3 Primary and Secondary Sources of Contamination 1.4 Presence in Environmental Media 2 Regulatory Framework 2. Navigating this Website About ITRC 1 History of Use and Potential Sources 1.
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