Laserfiche WebLink
<br />Water Supply Reserve Account – Grant and Loan Program <br />Water Activity Summary Sheet <br /> <br />Applicant: Amount Requested: <br />East Cherry Creek Valley Water and $400,000 <br /> <br />Sanitation District <br />Water Activity Name:Source of Funds: <br /> Zero Liquid Discharge Basin Account ($200,000) <br />Pilot Study <br />Statewide Account ($200,000) <br />Matching Funds: <br /> Yes $75,000 – East Cherry <br />Creek Valley $55,000; South Metro Water Supply <br />Authority $20,000 <br />Water Activity Purpose: <br /> Technical assistance regarding permitting, feasibility studies, and environmental <br /> <br />compliance <br />County: <br /> Douglas <br />Drainage Basin: <br /> Application from Metro Roundtable <br />Water Source: <br /> Study would be applicable for any basin with high total dissolved solids <br />Water Activity Summary: <br />The East Cherry Creek Valley Water and Sanitation District (ECCV) serves approximately 50,000 people in <br />the eastern portions of the City of Centennial and unincorporated Arapahoe County. ECCV is a Colorado <br />Special District governed by Colorado Revised Statute Title 32. The Board is elected by the registered <br />voters of the District. ECCV was formed in 1962. Revenues are derived from service charges, tap fees, <br />property taxes, and interest on investments. <br /> <br />Overview of the Water Activity <br />The Metro Roundtable has determined that the issue of waste stream discharge from reverse osmosis water <br />treatment is an important issue facing their area, and the project is consistent with their Interim Basin-Wide <br />Water Needs Assessment. In addition, the Colorado Water Quality Forum's Membrane Treatment <br />Workgroup has recommended that there is a need to examine zero liquid discharge (ZLD) technologies for <br />treatment of membrane treatment concentrate. Further, SWSI concluded that municipal and industrial (M&I) <br />water needs will increase by over 600,000 acre-feet per year by the year 2030, and a portion of these future <br />water demands will need to be met using lower quality water sources. <br /> <br />SWSI identified that much of the high quality water on the Front Range that can be treated with conventional <br />methods has been appropriated. Agricultural sources of water, whether a traditional or alternative transfer, <br />will have a large part in addressing Colorado's future water supply "gaps." Many of the future agricultural <br />transfers will involve the diversion and pumpback of lower quality water. In addition, M&I users will also <br />seek to recapture their reusable return flows for use in their potable water systems. Membrane treatment will <br />be one of the primary water treatment technologies used to produce potable water from these lower quality <br />sources. Without the ability to effectively treat these lower quality sources and produce safe esthetically <br />acceptable potable water, there could be significant M&I water shortages in the state. <br /> <br />This project involves pilot testing commercially available equipment for achieving a ZLD. A minimum of <br />two treatment alternatives will be piloted. This pilot study will specifically address capital and operating <br />costs associated with two ZLD technologies for treatment and disposal of reverse osmosis (RO) concentrate <br />streams, thereby allowing water providers to better fully understand the implications of residuals <br />management associated with RO treatment. <br /> <br /> 1 <br /> <br />