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- Chemical Contaminants - HALs and Chemical Fact Sheets
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Chemical Contaminants - HALs and Chemical Fact Sheets
Chemical Fact Sheets and list of HALs
乐动体育登录*Note: This page contains materials in the Portable Document Format (PDF). The free may be required to view these files.
Health Advisory Level (HAL)s are developed when a chemical is found in drinking water and no regulatory standard (MCL) exists for the chemical. The HAL concentration of a chemical in drinking water is a value that, based on the available data, is virtually certain not to cause adverse human health effects if consumed over a lifetime. HALs provide guidance for the public and the Department of Environmental Protection (DEP) on the potential for these chemicals to cause harm to humans.
乐动体育登录The maximum contaminant level (MCL) is a standard established by the United States Environmental Protection Agency, under the Safe Drinking Water Act. It represents an acceptable level of a chemical under specified conditions that ensures the safety of a public drinking water supply. MCLs are used by DEP to regulate the level of chemicals allowed in drinking water.
Acronyms used: HAL = Health Advisory Level MCL = Maximum Contaminant Level
Chemical Fact Sheets
Following are fact sheets with information on selected chemicals. All are pdfs <1mb that open in a new window.
Perfluorooctane Sulfonate (PFOS) and Perfluorooctanoic Acid (PFOA)
Total Trihalomethanes (THMs)
*Note: This page contains materials in the Portable Document Format (PDF). The free may be required to view these files.