Laserfiche WebLink
January 28, 2002 <br />Mr. Don Wood, President <br />SHPGWMD <br />36663 County Road UU <br />Two Buttes, CO 81809 <br />Mr. David Dunivan <br />SHPGWMD <br />204 E. Pine <br />Walsh, CO 81090 <br />Mr. Dale Kandt <br />SHPGWMD <br />44233 State Hwy 89 <br />Walsh, CO 81090 <br />Mr. Curtis Schroder <br />SHPGWMD <br />31580 County Road Q <br />Campo, CO 81029 <br />Mr. Max Smith <br />SHPGWMD <br />48940 County Road X <br />Walsh, CO 81090 <br />Mr. Joe Thompson <br />SHPGWMD <br />23500 County Road 42 <br />Walsh, CO 81090 <br />Mr. Doug Melcher <br />Mr. Chuck Roberts <br />SHPGWMD <br />Colorado State Engineers Office <br />12845 Hwy 89 <br />Room 818 <br />Holly, CO 81047 <br />1313 Sherman Street <br />Denver, CO 80203 <br />RE: Phase II Report for Southern High Plains Ground Water District <br />Gentlemen: <br />MWE has completed a draft report containing the information from the Phase 2 Study and is <br />submitting the study for your review. The budget provided for the project was used to conduct a <br />more thorough search of the State Engineer's Office well data files for additional information and to <br />integrate that information into developing more refined maps for these analyses. MWE staff <br />searched the records and chose the most detailed driller's or completion logs; i.e., those records with <br />the most data, especially records regarding the deeper Dockum formation. As explained in text, this <br />search was not as helpful as anticipated. Of 1500 well records examined, only 200 had significant <br />additional information. This detail was important to evaluate and search for continuity of shale <br />aquitards, and character of aquifers. Partial summary of new info: <br />• The Ogallala has several areas with water production, but the areas are discontinuous and <br />don't really add to the water resource. We did not reevaluate the hydraulic conductivity (K) <br />value. The Ogallala is still an effective source for small domestic production and as a <br />recharge to the underlying aquifers. <br />• The Graneros Shale is more extensive in northeast than previously thought. On the north <br />and northeast, it may be an upper barrier for Dakota, but south of that, the erosion and <br />exposure of the Dakota by Horse Ck, Bear Ck and tributaries, minimizes effects and extent. <br />• The northwest Cretaceous exposures and Two Buttes reservoir area are a significant area of <br />recharge to Dakota, Cheyenne and probably the Dockum. <br />99-028.003\Phase 2 Report\SHP Cover Letter <br />