AWWA Comment Period for AWWA E200 – Progressive Cavity Chemical Metering Pumps March 24, 2023 AWWA solicits public comments on all proposed new AWWA Standards, and on all proposed revisions, reaffirmations, or withdrawals of existing AWWA Standards. The referenced standards project is being considered for approval and the publication of this notice begins the 45-day public comment period for AWWA and ANSI. An electronic public review copy of the proposed standard can be obtained for review during the comment period by emailing ETS Support . Comments must be submitted in writing to the AWWA contact listed below no later than the last day of the comment period specified herein. Such comments shall be specific to the section(s) of the standard under review and include sufficient detail so as to enable the reader to understand the commenter's position, concerns and suggested alternative language, if appropriate. AWWA Comment Period closes on May 8, 2023. Send comments to: Jason Hrdlicka 303.347.6285 phone The review copy will be edited for publication and may also be revised as appropriate based on any comments received during the public comment period. Therefore, this copy is not suitable for continued utilization and is intended only for comment purposes. Final publication of the standard may take several months. When it is available, a notice will be published in the official notice section of Journal - American Water Works Association . The standard becomes an effective AWWA standard on the first day of the month following such publication in Journal - American Water Works Association . SCOPE This standard provides minimum requirements for progressive cavity chemical metering pumps used with polymers and aggressive chemicals including sodium hypochlorite (NaOCl), ferric chloride (FeCl3), sulfuric acid (H2SO4), hydrochloric acid (HCl), and other strong acids and bases. MAJOR REVISIONS 1. Addition of language to be consistent with AWWA Standards Council guidelines. 2. Removal of vibration testing requirements as not applicable to Hydraulic Institute (HI) technical directive 14.6 (Sec. 4.2).