Metro - ECCV Zero Liquid Discharge Pilot Study_Application

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~' . . . Water Supply Reserve Account - Grant Application Form Form Revised May 2007 3. For Applications that include a request for funds from the Statewide Account, describe how the water activity meets the Evaluation Criteria. See Part 3 of Criteria and Guidelines. Promotinq collaboration and cooperation: Membrane treatment will be needed to address M&I water supply gaps across the Front Range in the Metro, South Platte and Arkansas Basins. Results of this pilot study can be used for the development and application of ZLD technologies at a larger scale and benefit Front Range water providers. In addition to Front Range water providers, Coal Bed Methane producers on the western slope would also benefit from the pilot study results. Facilitatinq water activitv implementation: Conducting a pilot study of ZLD technologies will reduce the uncertainty of using this technology to meet demands of Front Range water providers. There is an urgency to conduct pilot testing because the Colorado Water Quality Forum's Membrane Treatment Workgroup has recommended the piloting of available technologies. The document describing the workgroup's recommendation is attached to this application and ECCV's proposed scope will address several of the workgroup's recommendations. Regarding the expertise of the applicant, ECCV has been a leader in the Membrane Treatment Workgroup's efforts. In addition, ECCV has retained CDM to conduct the pilot testing. Key information about the capabilities of the staff conducting the pilot study are contained in the attached scope of work. ECCV has secured the following matching funds: From ECCV, $55,000 and from the South Metro Water Supply Authority, $20,000. Meetinq water manaqement qoals and obiectives and identified water needs: Many Front Range providers have stated that reuse and traditional or alternative agricultural transfers are part of their Identified Projects and Processes as outlined in the Statewide Water Supply Initiative. In addition, Continued SWSI efforts have outlined that these sources of supply will be needed to meet a portion of the gap. Reuse and agricultural transfers, whether traditional or alternative, will require advanced water treatment processes to meet drinking water requirements. As outlined in SWSI and the Membrane Treatment Workgroup report membrane treatment will be the long-term sustainable technology for meeting the drinking water requirements. ZLD technologies will be needed to remove the salts and other contaminants from the membrane treatment waste stream and provide a sustainable solution. The water activity address issues of statewide value: Piloting ZLD technology will ultimately lead to the maximum utilization of state waters. 5