Water Quality MMWC Water Testing The alluvial deposits in the West Beaver Creek valley do a fine job of filtering the water. For years, MMWC has operated on a disinfection waiver exempting MMWC from any requirement to treat the water. However, the Colorado Department of Public Health and Environment is implementing new regulations that require MMWC to progress toward chlorinating the water supply. MMWC routinely tests its water and reports its results to the Colorado Department of Public Health and Environment. MMWC tests for scores of potential contaminants at the source, most on an annual basis, and a few on a rotating once-every-three-year basis. MMWC also conducts bacteriological testing on a monthly basis by rotating through five different locations along MMWC's distribution system. MMWC's testing shows that the water MMWC obtains from its Gillette wells, and distributes through its transmission and distribution lines, has no materially significant levels of lead or copper. Furthermore, MMWC's distribution system is comprised almost entirely of plastic pipes. It includes no lead pipes or lead solder. Nevertheless, pursuant to government regulations, MMWC also conducts annual tests for lead and copper at multiple different home sites -- many of which are fairly old homes. Occasionally -- and especially if the home has been unoccupied, allowing water to sit in the home's water distribution system for a long period of time -- MMWC's tests of these homes reveal slightly elevated levels of copper or lead. This is due to leaching of lead and copper from copper and/or lead pipes and lead solder in some members' homes. MMWC is obligated to report these test results in the annual Consumer Confidence Survey it sends to its members. Annual "Consumer Confidence Reports" (a.k.a. Annual Water Quality Reports) In compliance with EPA regulations, MMWC annually prepares a "Consumer Confidence Report" (CCR) for its customers. For information and frequently asked questions concerning the contents of the CCR, please see the EPA's CCR website. Below are copies of MMWC's CCRs for recent years. · Report of Calendar Year 2010  · Report of Calendar Year 2009  · Report of Calendar Year 2008  · Report of Calendar Year 2007  · Report of Calendar Year 2006  Other Links Colorado Primary Drinking Water Regulations. Copyright © 2009-2011 MMWC Director Eric W. Cernyar