Laserfiche WebLink
the reclamation cost that may be imposed upon the State in a financial warranty forfeiture, and <br /> must be covered by the reclamation bond. Assuming that the bore hole information <br /> demonstrates that the bedrock is no more than 36 feet below the surface and is an adequate <br /> seepage barrier, the following estimate is provided as an example calculation for a sand and <br /> gravel mining operation slurry wall: <br /> 36'depth x 8222' length x$3.00/sq.ft. _ $887,976.00 direct costs <br /> If the 20% regulated construction bond is selected the required bond for slurry wall <br /> installation would be $177,595.00. <br /> Rezulatory Responsibilitv <br /> The final approval and success criteria for the performance of the slurry wall to seal and isolate <br /> the reservoir-storage from the surrounding alluvial aquifer lies with the State Engineer. The <br /> Division of Minerals and Geology is required to hold financial warranties sufficient to assure that <br /> the State Engineer's standards will be met in the event the state becomes responsible for the site. <br /> To release a slurry wall financial warranty, an operator must provide the Division documentation <br /> of compliance with the State Engineer's lined reservoir performance standards. (The <br /> Memorandum of Understanding between the Division of Minerals and Geology and the Office of <br /> the State Engineer describes in detail the division of responsibilities between the two agencies) <br /> attachment(s) <br /> C:policy/policy on lined gravel pits <br />