Notice of Tentative Approval and Solicitation of Request for a Public Hearing for Public Water System Supervision Program Revision for the Commonwealth of Pennsylvania

概要

Notice is hereby given in accordance with the provision of section 1413 of the Safe Drinking Water Act as amended, and the National Primary Drinking Water Regulations Implementation that the Commonwealth of Pennsylvania is revising its approved Public Water System Supervision Program. Pennsylvania has adopted an Interim Enhanced Surface Water Treatment Rule (IESWTR) to improve control of microbial pathogens in drinking water, including specifically the protozoan Cryptosporidium, and a Stage 1 Disinfectants/Disinfection Byproducts Rule (DBPR), setting new requirements to limit the formation of chemical disinfection byproducts in drinking water. EPA has determined that these revisions are no less stringent than the corresponding Federal regulations outside of two minor omissions to their regulations. The two items concern turbidity monitoring reporting requirements under IESWTR for systems that use alternative filtration technologies and selection of disinfection byproduct monitoring locations under the DBPR for surface water systems serving at least 10,000 people. These omissions are being addressed through an EPA/ Pennsylvania Department of Environmental Protection signed letter ag