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<br />ARAPAHOE COUNTY WATER AND WASTEWATER AUTHORITY <br /> <br />alluvial recharge system will not be implemented for several years following construction of the <br />JWPPWTP. <br /> <br />Currently, treated effluent from the L TCWRF that is not used for non-potable irrigation, is <br />discharged to Cherry Creel(. ACWW A however holds the water rights to use its deep <br />groundwater supply to extinction. The recharge system will allow ACWW A to do this, and <br />therefore conserve the Authority's nontributary potable water supplies. There is no cost <br />information currently available for the alluvial recharge system. <br /> <br />3.1.2 Lone Tree Creek Wastewater Reuse Facility <br /> <br />The expansion of the L TCWRF is necessary due to the continued increase in wastewater flows <br />within ACWW A's service area. In addition, ACWW A has entered in an intergovernmental <br />agreement with neighboring Inverness Water and Sanitation District (IWSD) to treat the <br />District's wastewater. Design of Phase I of the expansion is currently underway and construction <br />is expected to be completed in the mid-2008. The peal( month capacity of Phase I of the <br />expanded facility will be 3.6 mgd. Two subsequent expansions are planned to begin construction <br />in 2012 and 2017, increasing the facility capacity to 5.4 mgd and 7.2 mgd respectively. <br /> <br />L TCWRF currently utilizes membrane bioreactors to provide tertiary treatment. The expansion <br />will replace the membrane bioreactors with biological nutrient removal (BNR) reactors, and <br />adsorption clarification and sand filtration. <br /> <br />3.1.3 Non-potable Water System <br /> <br />An expanded non-potable water system has been identified as a l(ey component of the water and <br />wastewater systems that will reduce the infrastructure required for the potable water system, <br />address water quality issues, and help conserve nontributary potable water supplies. <br /> <br />The non-potable water system will consist of a pipeline delivery system that is separate from the <br />potable water distribution system and the raw water supply system for the JWPPWTP. The non- <br />potable system will supply water for service area uses that do not require potable water, <br />generally irrigation for turf and landscape areas in new residential single family properties, new <br />and existing multi-family areas, and commercial properties. The non-potable system will include <br />the use of both raw alluvial well water and treated wastewater effluent. Irrigation in single family <br />residential areas will be limited to using raw alluvial water. <br /> <br />3.1.4 Water Supply Improvement and Delivery Programs <br /> <br />The water supply improvement and delivery projects that are planned by ACWW A until the year <br />2006 include a variety of different projects. The most substantial of the planned projects is for <br />the infrastructure for a new delivery system for future water rights acquisitions with $31.3 <br />million allocated for 2013, 2015 and 2020. The Northern Water Supply Project scheduled for <br />2006 and 2012 is a project that intends to bring Farmers Reservoir and Irrigation Company <br />(FRICO) water from Barr Lal(e to ACWWA using the East Cherry Creel( Valley Water and <br /> <br />Richard P. Arber Associates, Inc. <br /> <br />18 <br /> <br />ACWW A05 <br />