Laserfiche WebLink
d. repeat, as necessary; if there is a second aquifer to be protected another <br />packer and cement plug will be set from 50 feet below the bottom, to 50 feet <br />above the top, of the next higher aquifer. <br />3. Diesel -based mud and Reclamation: We are asking our contractors that are bidding <br />on the drill holes to prepare to provide a complete closed system for the diesel- (or <br />other oil- based) mud system. When the coring is completed in each hole, they are <br />preparing to flush the drill hole with surfactants to recover as much as possible of the <br />oil -based mud from the hole. Further, they are preparing to pressure wash all of the <br />oil -based mud from any of the drill- string, casing, pumps and equipment that was <br />used in the oil -based mud coring process. We are prepared to provide details of the <br />recovery and clean -up practices in the drill hole permanent abandonment reports. <br />4. Reclamation cost: This is the portion of our response to CDRMS's second letter that <br />will take some more time to complete. RM Potash has requested bids from two <br />drilling companies that have combination drill rigs (rotary and efficient coring). We <br />have also have two mud companies preparing estimates of the cost of preparing, <br />delivering, storing, clean-up, and disposal of oil -based mud for our drill holes. I will <br />forward that information to CDRMS, and to the BLM, as soon as we receive it. <br />Sincerely, <br />J. n P. Thorson <br />Manager, Colorado Potash Project <br />cc. James Blair — BLM <br />cc. Rob Rutherford, RM Potash, Sydney <br />2 <br />