From the Englewood Herald (Tom Munds):
New regulations regarding the removal of microscopic giardia and cryptosporidium organisms from drinking water make it necessary for the city’s Allen Water Filter Plant to install the ultraviolet system as part of its treatment process. “Our filter system keeps us in compliance with current regulations regarding removal of giardia and cryptosporidium,” utility director Stewart Fonda told the City Council at the March 26 study session. “However, we need to install the ultraviolet system now in order to be able to comply with the more stringent regulations that will be in place by 2014.”[…]
He said the plans are to remake a 1950-era building into a two-story structure that will be the location of the ultraviolet process. The ultraviolet system will be on the first floor and the power supplies for the system will occupy the second floor. There will be three ultraviolet “trains” in place. Each “train” consists of line of six or eight 4,000- to 5,000-watt ultraviolet bulbs that are similar in shape to fluorescent lighting. The intensity of the bulbs means the water only requires a few seconds of ultraviolet disinfection. The project is scheduled to begin in September and will take about a year. The cost will be $3.5 million to $4 million.