federal_register: 99-4416
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| document_number | title | type | abstract | publication_date | pub_year | pub_month | html_url | pdf_url | agency_names | agency_ids | excerpts | regulation_id_numbers |
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| 99-4416 | Radon in Drinking Water Health Risk Reduction and Cost Analysis | Notice | The Safe Drinking Water Act (SDWA), as amended in 1996, requires the U.S. Environmental Protection Agency (EPA) to publish a health risk reduction and cost analysis (HRRCA) for radon in drinking water for public comment. The purpose of this notice is to provide the public with the HRRCA for radon and to request comments on the document. As required by SDWA, EPA will publish a response to all significant comments to the HRRCA in the preamble to the proposed National Primary Drinking Water Regulation (NPDWR) for radon, due in August, 1999. The goal of the HRRCA is to provide a neutral and factual analysis of the costs, benefits, and other impacts of controlling radon levels in drinking water. The HRRCA is intended to support future decision making during development of the radon NPDWR. The HRRCA evaluates radon levels in drinking water of 100, 300, 500, 700, 1000, 2000, and 4000 pCi/L. The HRRCA also presents information on the costs and benefits of implementing multimedia mitigation (MMM) programs to reduce the risks of radon exposure in indoor air. The SDWA, as amended, provides for development of an Alternative Maximum Contaminant Level (AMCL), which public systems may comply with if their State has an EPA approved MMM program to reduce radon in indoor air. The concept behind the AMCL and MMM option is to reduce radon health risks by addressing the larger source of exposure (air levels in homes) compared to drinking water. If a State chooses to employ a MMM program to reduce radon risk, it would implement a State program to reduce indoor air levels and require public water systems to control water radon levels to the AMCL. If a State does not choose a MMM program option, a public water system may propose a MMM program for EPA approval. Today's notice does not include any decisions regarding the choice of a Maximum Contaminant Level (MCL) for radon in drinking water. Today's notice also announces a stakeholder meeting on the HRRCA and framework for the MMM program. | 1999-02-26 | 1999 | 2 | https://www.federalregister.gov/documents/1999/02/26/99-4416/radon-in-drinking-water-health-risk-reduction-and-cost-analysis | https://www.govinfo.gov/content/pkg/FR-1999-02-26/pdf/99-4416.pdf | Environmental Protection Agency | 145 | The Safe Drinking Water Act (SDWA), as amended in 1996, requires the U.S. Environmental Protection Agency (EPA) to publish a health risk reduction and cost analysis (HRRCA) for radon in drinking water for public comment. The purpose of this notice is... |