Laserfiche WebLink
<br />Westminster Reclaimed Water System <br /> <br />III. WATER QUALITY <br /> <br />The WRWS will deliver treated, filtered, and disinfected water ideal for irrigation of public <br />landscapes. ft is completely safe and appropriate for use as an irrigation supply. The WRWS will <br />be regulated by the Colorado Department of Public Health and Environment. Reclaimed water <br />will be suitable for full body contact and can be used for unrestricted irrigation. All sites irrigated <br />with reclaimed water will have signs that inform the public. Pipes, sprinkler heads, and other <br />equipment will be marked and coded to avoid any possibility of cross-connections. The u.sers of <br />sites irrigated with reclaimed water will be able to continue to use those sites without being <br />exposed to any additional health risks. <br /> <br />IV. WRWS COMPONENTS <br /> <br />Major components of the proposed WRWS are shown on Figure ES-I. The major components <br />of the WRWS include a Reclaimed Water Treatment Plant (RWTP) adjacent to the Big Dry <br />. ~ <br />Creek Water Reclamation Plant, a 2.5 million gallon buried storage tank at the RWTP, a 110,000 <br />gallon standpipe at the Northridge sile south of Westminster City Hal!, and approximately 95,000 <br />lineal feet of 2-inch to 36-inch diameter pipe. <br /> <br />.-~....... <br /> <br />Several alternative treatment processes were evaluated. The recommended treatment processes <br />include coagulation with ferric chloride and polymer, filtration in continuous backWash filters, and <br />disinfection with chlorine for two hours with a residual of 10 mg/L. The R WTP will have a first <br />phase capacity of 4 million gallon day (mgd). The plant will be expanded to its ultimate capacity <br />of 12 mgd in two additional 4 mgd increments as demand increases and additional wastewater <br />becomes available for reclamation. The pipeline route was selected based on computer modeling <br />of various combinations of possible demands, different pipeline alignments, and alternative storage <br />tank locations. <br /> <br />ES-2 <br /> <br />COWESTM04 <br /> <br />\ <br />--- <br /> <br />Richard P. Arber Associates, Inc. <br />