UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WSG 176 December 2, 2004 MEMORANDUM SUBJECT: LT1ESWTR Implementation Guidance Manual FROM: Stephen F. Heare, Director Drinking Water Protection Division TO: Drinking Water Program Managers Regions I - X I am writing to inform you that the Long Term 1 Enhanced Surface Water Treatment Rule Implementation Guidanceis now available. The Long Term 1 Enhanced Surface Water Treatment Rule (LT1ESWTR) increases public health protection by reducing the risk of exposure to microbiological pathogens, specifically Cryptosporidium. On January 1, 2005, systems will begin complying with the turbidity provisions in this rule. This document will help EPA Regions and states implement the rule's provisions. Along with a summary of the rule, the document provides guidance that will help states prepare their primary enforcement authority (primacy) revision application, and includes sample system notification letters and sample reporting forms to aid states with the initial phases of implementation (by providing forms that can be easily modified). The guidance also contains additional materials such as a "Question and Answer" section, rule fact sheets, a quick reference guide, data entry instructions, and flowcharts of rule requirements. The document is available in electronic format on the EPA website at http://www.epa.gov/safewater/mdbp/ltleswtr.html. Hard copies will also be available shortly and will be sent to you for your reference. Additional copies can be obtained by contacting the Water Resource Center at 202-566-1729 (identify document number EPA 816-R-04-008). You may also contact the National Service Center for Environmental Publication 1-800-490-9198 to obtain hard copies. If you have any questions, please contact Katie Leo Porter at (202) 564-3839. ------- |