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MEMORANDUM <br /> <br />CWS File #07-300 <br />To: Ms. Tammie Petrone, CWCB <br />From: Val Flory, P.E. <br />cc: Kathy Peterson, Chris Smith, Lefthand Water District <br />Date: 2-15-08 <br />Subject: 50% Progress Report for Lefthand Water District Water Conservation Plan <br />Clear Water Solutions is working with Lefthand Water District (LHWD) to complete a <br />Water Conservation Plan in accordance with State regulations following the Guidance <br />Document produced by the Colorado Water Conservation Board (CWCB). The <br />Guidance Document outlines nine steps in the water conservation planning process. To <br />date, LHWD has completed Steps 1.1 through 5.1. <br />Initially, we evaluated the physical components of the District’s water system and its <br />sources of water supply. LHWD owns Colorado-Big Thompson (C-BT) water and Left <br />Hand Ditch Company (LHDC) shares. The District has two water treatment plants, both <br />with a small amount of raw water storage at the plant. Ownership in the LHDC provides <br />the District with an additional 1,000 AF of raw water storage. The main limitations <br />identified for LHWD are: 1) high cost of C-BT water, 2) LHDC shares can only be used <br />in the historic irrigation area, and 3) the age of some parts of the distribution system. <br />LHWD has an agreement with LHDC that enables them to use LHDC shares within the <br />historical area and C-BT water outside of the area. <br />LHWD’s water rates, revenue from water sales, and billings and collections process are <br />described. These provide an overall picture of the current condition in addition to <br />helping to establish the baseline for determining potential lost revenue due to water <br />conservation in further planning steps. <br />The customer categories used at LHWD are residential, commercial, multi-housing, dual <br />systems, landscape, master meter communities, master fire meters, and hydrant <br />meters. They also have a category of taps that have been purchased but are not yet in <br />use called minimum billing. The taps in this category go into effect one year after <br />purchase and are not part of this evaluation. LHWD has a number of large lots with <br />large lawns that use a significant amount of water. The top 57 customer accounts in <br />part of the service area are known for high water consumption use, approximately 3% of <br />the total water use for the District. Therefore, residential is a customer category that <br />has been targeted for water savings. Commercial is another area targeted for savings. <br />The top 12 users in this category use approximately 5% of the total water use. <br />Landscape is an area that has potential for savings as well as some of the master meter <br />