This meeting will be open to the public. EPA encourages public input and will allocate time on the agenda to receive verbal statements. EPA requests that participants limit statements to the topics described in the agenda and in theSUMMARYsection of this notice. Participants will be provided with a set time frame for their statements. EPA also requests that only one person present a statement on behalf of a group or organization. Individuals or organizations interested in presenting a statement should notify Cesar Cordero by email email@example.com later than November 9, 2012. Individuals that have scientific data that they would like EPA to consider during the regulatory review of the LT2 rule are encouraged to email their data to Cesar Cordero at the email address listed in theFOR FURTHER INFORMATION CONTACTsection by December 31, 2012.
The LT2 Rule:The purpose of the LT2 rule, promulgated in 2006 (71 FR 654; January 5, 2006), is to reduce disease incidence associated withCryptosporidiumand other disease-causing microorganisms in drinking water. The rule includes requirements for PWSs that provide filtration to be classified in one of four categories (bins) for additionalCryptosporidiumtreatment that may be needed based on the occurrence ofCryptosporidiumorE. coliin their source waters. Systems that are placed into the first bin require no additional treatment, while systems that are placed into bins 2, 3 or 4 will need to conduct additional treatment but will be able to select from a range of treatment and management strategies (i.e. microbial toolbox options) to meet their treatment requirements.
EPA Reviews:The Safe Drinking Water Act (SDWA) requires EPA to review each existing national primary drinking water regulation (NPDWR) every six years and revise the regulation if appropriate (see SDWA Section 1412(b)(9)). Section 1412(b)(9) of SDWA specifies that any revision to a NPDWR “shall maintain, or provide for greater, protection of the health of persons.” In addition to reviewing the LT2 rule under the third Six-Year Review, EPA announced in the August 2011 document,Improving Our Regulations: Final Plan for Periodic Review Retrospective Reviews of Existing Regulations,that the agency would review the LT2 rule in response to E.O. 13563, which requires agencies to review regulations to determine where the agencies could streamline or eliminate ineffective, overly burdensome, and outdated rules. As part of these reviews, EPA plans to assess and analyze information and data regarding occurrence, analytical methods, and treatment to evaluate whether there are new or additional ways to manage risk.
The public meeting announced in this notice will be the third meeting hosted by the agency for the purpose of reviewing the LT2 rule in response to SDWA Section 1412(b)(9) and E.O. 13563. The first meeting occurred on December 7, 2011, and focused on the analytical methods forCryptosporidiumand the preliminary drinking water source monitoring results from samples collected under the LT2 rule. The second meeting occurred on April 24, 2012, and focused on the uncovered finished water reservoirs requirement of the LT2 rule.
Dated: September 6, 2012.
Acting Director, Office of Ground Water and Drinking Water.