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Sanford Canal Company Agenda Item 32b May 9,2014(Updated May 23,2014) Page 3 of 4 Water Rights The water rights impacted by this project are shown in Table 1: TABLE 1: SANFORD CANAL COMPANY WATER RIGHTS Decreed Name Amount(CFS) Appropriation Date Adjudication Date Sanford Ditch 107.5 10/20/1885 10/03/1890 Sanford Ditch 38.8 03/10/1902 01/14/1914 Average annual surface diversions of the Company over the past 10 years are 4,000 AF (0.08 AF per share). The Company also owns three irrigation wells completed in the confined aquifer that are used as a supplemental source of irrigation water for its shareholders. Use of these wells to supplement surface water will become more restrictive and expensive with the implementation of Ground Water Use Rules and sub-districts within Division 3. Project Description The purpose of this Project is to address the need for a well-designed diversion structure that will reduce maintenance, improve water management efficiencies, and allow for the accurate control of compact-entitled waters. The core of the Sanford Canal diversion structure has been washed away over time, contributing to decades of limited diversion to irrigators and potential over payment to the Compact. Currently, irrigators divert their water right by piling debris such as tree trunks or cinderblocks to act as the diversion dam. The Project, in conjunction with the District's CMP, seeks to eliminate this practice. Alternative 1 -No Action:Due to the deteriorated rock and rubble diversion structure,this alternative was not considered further. The ability to divert the Company's water rights will become more diminished as the already deteriorated structure continues to deteriorate. It is not feasible for the Company to rely on its irrigation wells to make up for its surface rights. Alternative 2—Repair Existing Structure: The existing rock and rubble piles of debris offer no possibility of repair. This alternative was not considered further. Selected Alternative 3—Remove and Replace All Existing Structures: This alternative will remove and replace the diversion and headgate structures. The new headgate will be automated and four gauging stations will be installed. Additionally,measurement structures and telemetry will be installed at four locations within the ditch to accomplish water management efficiency goals. This alternative meets the Project's goals and has an estimated cost of$213,000 as shown in Table 2. TABLE 2: PROJECT COST SUMMARY Task CMP Cost Sanford's Project Cost Engineering and Administration $91,000 $32,000 Construction $480,000 $176,000 Telecommunications $11,000 $5,000 Total $582,000 $213,000 Schedule: Final design is scheduled to be completed in summer 2014,with construction expected to start by September 2014. Construction is expected to be completed by March 2015.