Laserfiche WebLink
1 <br />1 <br />' <br />' <br />' <br />' <br />' <br />' <br />1 <br />' <br />� <br />' <br />1 <br />1 <br />� <br />LJ <br />J <br />'�J <br />CIVIL 6 MINING ENGINEERING <br />WATER. SEWER & DRAINAGE <br />ENGINEERING STUD�ES <br />U. 5. MINERAL SURVEYS <br />WATER RESOURCE STUDIES <br />LAND AND MINE SURVEVING <br />DRAFTING & REPRODUCTION <br />DAVIS ENGINEERING SERVICE, Inc. <br />576 SPRUCE STREET • P.O. BOX 130 <br />DEL NORTE. COLORADO 81 132 <br />PMONE 719-657•3304 <br />September 16, 1992 <br />Mr. John U. Carlson. Attorney at Law <br />Carlson, Hammond k Paddock <br />1700 Lincoln Street, Suite 3900 <br />Denver, Colorado 80203 <br />Re: San Luis Valley Water Conservancy Districi <br />Ground Water Recharge Project <br />Dear John: <br />REGISTERED IN: <br />COLORADO <br />NEW MEXICO <br />UTAH <br />Enclosed is a sketch sho�ring proposed gro�nd water recharge facilities on <br />State Land Board property in Section 1, T.40N.. R.6E., N.M.P.M. As I visualize the <br />project, with the cooperation of the Rio Grande Canal, the District would reactivate <br />the e�sting diversion on Lateral No. 5A located near the mid—point of the south line <br />of the section hopefully this fall. I think it would then be useful to run some water <br />into the drainage extending northeast and observe the recharge rate to verify that <br />the soil is appropriate for the proposed project. <br />If the limited ground water recharge test on the property is tavorable, I xill <br />recommend that the additional diversions and small dams be constructed so the <br />eniire project can be operated. The proposed construction will also included <br />proposed monitoring well nests located approximately as shown on the sketch. The <br />actual number and location of monitoring wells and small dams may vary slightly <br />from those shown on the drawing as a result of details developed during final design. <br />I estimate that flow through any one of the diversions could vary from less <br />than 1 c.f.s. to as much as 20 c.f.s. depending on availability of water and the <br />capability of the site to accept recharge water. In most years, I expect the total <br />period of time that water will be available for recharge will be less than two months <br />and yrill occur in the spring and late fall. There may be some slight erosion and silt <br />deposition immediately downstream of the diversion structures, but beyond these <br />impacts, l expect the pasture to be enhanced as a result of coincidental irrigation. <br />There will also be limited soil excavation and fill associated xith the construction of <br />the small dams. <br />A-5 <br />