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EPA published the Ground Water Rule (GWR) in the Federal Register on November 08, 2006. The purpose of the rule is to provide for increased protection against microbial pathogens in public water systems that use ground water sources. EPA is particularly concerned about ground water systems that are susceptible to fecal contamination since disease-causing pathogens may be found in fecal contamination. The GWR applies to public water systems that serve ground water. The rule also applies to any system that mixes surface and ground water if the ground water is added directly to the distribution system and provided to consumers without treatment. EPA reviewed this action in the fall of 2015 through the spring of 2016, pursuant to section 610 of the Regulatory Flexibility Act (5 U.S.C. 610). As part of this review, EPA solicited comments for consideration on the following factors: (1) The continued need for the rule; (2) the nature of complaints or comments received concerning the rule; (3) the complexity of the rule; (4) the extent to which the rule overlaps, duplicates, or conflicts with other federal, state, or local government rules; and (5) the degree to which the technology, economic conditions or other factors have changed in the area affected by the rule. EPA has completed its review and concluded that the rule needs no revisions at this time to minimize impacts on small entities. The results of the review are summarized in a report and placed in the Water Docket under Docket ID No. EPA-HQ-OW-2015-0541. You can access the docket at the Federal eRulemaking Portal: http://www.regulations.gov.