15d_Directors Report

• Board Meeting Date: 7/21/2009
• Description: Directors' Report - CWCB Director
• Board Meetings - Doc Type: Memo

Water Source: East Fork Mancos River Project Yield: 869 AF
Terms of Loan: $904 ,000@ 2.5% for 30 yrs. Project Type: Ditch Rehabilitation
The East Mancos Highline Ditch Company is comprised of 6 members that manage 5.75 miles of
open ditch, with an annual diversion of approximately 870 cfs and a 700 acre service area. This
project involves piping the 5.75 miles of ditch with 10 - inch to 15 - inch PVC Pipe to create a
pressurized system for the users. The project is a joint effort with NRCS’s Salinity Control
Program. NRCS is contributing 75% of the cost towards the design and cons truction of the
project. Construction has commenced with proje ct c ompletion anticipated by May of 2009 . The
project is approximately 90 % com plete. The only remaining construction item is the intake
structure on the river.
31. Pagosa Area Water and S anitation District – Dry Gulch Reservoir Land Acquisition
Authorization: Construction Fund County: Archuleta
Water Source: San Juan River Project Yield: 35,000 acre - feet
Terms of Loan: $11,217,060@3.50 % for 30 yrs. Projec t Type: Land Acquisition
Di strict serves 9,500 residents in the 100 sq. mile District service area. Drought and demand from
growth is requiring additional storage and of around 12,400 AF of storage by 2040. Growth
projections estimate the need for a 35,000 AF reservoir to meet deman d through 2100. Dry Gulch
site is the only reasonably valued site available due to land development. Primary fill source will
be pumping of San Juan River water to the reservoir. A CWCB loan will be used to purchase two
parcels of land to begin the process of meeting the needs of the District. The land is needed for
both sizes of reservoir. Preliminary design and permitting is expected to start in 2008 and
construction of the reservoir is projected to start in 2020. CWCB has disbursed just under
$10,000,00 0 in loan funds for land purchases, with the final land purchase to occur by December
of 2009.
P rojects under Design
1 . Supply Irrigation Ditch Company – Knoth Reservoir Dam Rehabilitation
Au thorization: Severance Tax Fund County: Boulder – N.E. o f Lyons
Water Source: St. Vrain Creek Project Yield: 4,800 acre - feet
Terms of Loan: $904,960@2.6 % for 30 - years Project Type: Dam Rehabilitation
Supply Irrigating Ditch Company services approximately 8,500 acres of irrigated farmland in
Boulder County between Lyons and Mead. Currently the water for irrigation is supplied by a
direct flow decree and from the Beaver Park Reservoir (which is approx. 25 miles west of the
start of the Supply Ditch near the continental divide). Supply Irrigating Ditc h Company is in the
process of acquiring a storage decree within Knouth Reservoir in exchange for the rehabilitation
of the reservoir. This reservoir will give the Company some system flexibility, as this storage is
significantly closer to users than Beave r Park Reservoir. The reservoir improvements include:
construction of a spillway, removing vegetation from the embankment of the dam, lining select
areas on the upstream dam face with a clay liner, placing riprap along the upstream dam face,
enclosing an i rrigation ditch within a pipe, and installing dam instrumentation. URS Corporation
is currently working on the final SEO plans, which could be approved sometime this summer.
Design changes and refinement of the original cost estimate have resulted in an increase to the
overall project cost. It is anticipated that the Company will be requesting additional loan funds at