Laserfiche WebLink
S,a <br />~~' <br />e~ r~,y t <br />c~`~ ~ra ¢~~ ~ t <br />i• <br />3 ~ po~4a.F v+`l~ <br />o `n~~. ib <br />American Soda's solution mining program has been developed <br />using data from the three i3) existing experimental test cavities <br />(solution mining wells), American Soda 20-2 and American Soda <br />20-3, and American which are presently operating under a Class V <br />UIC Rule Authorized Permit issued by EPA in April 1997. In <br />addition to wells 20-2 and 20-3, EPA has recently approved well <br />20-14 under the Class V Rule Authorization. <br />Area of Review: During the first 30 (30) years of the <br />project, American Soda intends to develop approximately 550 <br />solution mining wells across essentially the entire Yankee Gulch <br />Joint Venture Leases. Pursuant to 90 CFR Part 196.6 (b)(2), the <br />area within the Yankee Gulch Joint Venture Leases plus the area <br />within a fixed width of one-quarter (1/4) mile around the Yankee <br />Gulch Joint Venture Leases boundary is hereby designated as the <br />Area of Review (AOR). cigure 3, shows the location of the: <br />Yankee Gulch Joint Venture Leases (Piceance Site) <br />,Sections 15, 16, 17, 18, 19. 20, 21, 22, 28, and 29 <br />Township 1 South - Range 97 West Sixth Prime Meridan <br />Rio Blanco County, Colorado <br />The applicant has notified all surface landowners within <br />one-quarter (1/41 mile of the area permit of their intent to <br />apply for a Class III solution mining well area permit. <br />The proposed layout development of the well field is <br />illustrated in Fiq 4. In general, the well field development <br />sequence is based on the concept of two-pass mining. On the <br />first pass every other well location shall be developed to its <br />maximum site resuit:ng in a well spacing of 600 feet. On the <br />second pass, wells shall be developed between those developed <br />during the first pass. This concept will allow the full <br />development of several cavities on a 600 foot spacing over a 2 to <br />3 year period after startup and provide valuable data on the <br />lateral extent of each cavity. <br />The maximum effective cavity size will determine the spacing <br />of the second pass development. If a cavity size equivalent to a <br />diameter of 200 feet is not achieved, consideration shall be <br />given to reducing the spacing between wells in future areas to be <br />developed. Alternatively, if it is determined that the optimum <br />cavity size is greater than 200 feet then no second pass <br />development will occur where the wells have been laid out on a - <br />300 foot spacing. - <br />