EL CENTRO – At the regular meeting of the Imperial Irrigation Board of Directors on Tuesday, April 2, the Board was updated on the Water Conservation and Transfer Program.
Jesse Silva, Water Department Manager, gave the update that was committed to by General Manager Kevin Kelley at the March 19 Board meeting.
The status of the IID-San Diego Water Authority Water Conservation and Transfer Program was discussed with regard to the IID System and On-Farm elements.
It is estimated that over 640,000 Acre Feet (AF) of water is being lost, 210,000 AF of water in the IID System due to spills and seepage and 433,000 AF if water On-Farm due to tail water and leaching.
Silva explained that it is thought that 120,000 to 130,000 AF could be conserved in the IID System and 170,000 to 180,000 AF could be conserved On-Farm.
On-Farm conservation is ongoing with new ideas being explored by the Water Conservation Committee.
Fallowing will continue until 2017.
The cost of the proposed conservation would be approximately $185/AF to the IID System and $250/AF to the On-Farm conservation (2006 dollars).
Bids have already been received for the approved portion of the project to update the SCADA system, install flow meters, and acquire laptops for the Zanjeros to monitor spills, measure deliveries, and manage canals better.
The proposed work to be done in 2013 is to design 7 lateral interties that could save 5,000 AF a year at a cost of $70/AF.
Also, it is proposed to design and construct a new reservoir on the West Side Main Canal that could save 3,000 AF a year at a cost of $150/AF.
Other measures proposed are automated gates, lining of the East Highline Canal and portions of the West Side Main and Central Main Canals.
A finance plan for implementation would be needed for the projects.
Silva said, “It is imperative that these proposals be implemented ASAP to conserve the water for the QSA. These first measures are the easiest and quickest ways to conserve water at the lowest cost to the District.”
The Board will consider the proposals at a future meeting.