Laserfiche WebLink
Geology must review and approve the details of this plan. The Applicant has <br />also agreed to limit any de-watering to a maximum depth of fifteen feet. <br />14. This commitment satisfies the Objector and Rule 3.1.6(1)(a). <br />Groundwater Contamination <br />15. The Objector is concerned that the Applicant's mining activity will remobilize <br />certain chemicals that now exist in the soil in the vicinity of this site as a result <br />of the operations of the Rocky Mountain Arsenal. The Arsenal manufactured <br />the nerve agent Sarin. Sarin manufacturing generates asemi-volatile organic <br />compound known as Diisopropyl Methylphosphonate (DIMP). DIMP now <br />contaminates the soil in the vicinity of the proposed operation. The Objector <br />is concerned that mining will disturb this chemical, causing groundwater <br />contamination. <br />16. Construction Materials Rule 6.4.7(2)(c) states that if the Applicant is expected <br />to affect surface or groundwater systems, it must submit a brief statement or <br />plan showing how its operations will be managed to protect against pollution <br />of either surface or groundwater during and after the operation. <br />17. DIMP has been detected in the Objector's well in the past. However, test <br />results indicated that the concentration of DIMP did not exceed drinking water <br />standards. There is no current data regarding the presence of DIMP in the <br />Objector's wells. <br />18. The groundwater gradient in the vicinity of the proposed operation flows from <br />the Objector's property toward the proposed mine site. In the event the <br />