2010-01-21_PERMIT FILE - M2009082 (11)

Home Browse Search

fli!1 Page 5 of 11 Mr. Jared Ebert January 20, 2010 6.4.6 EXHIBIT F - Reclamation Plan Map 16. On the Reclamation Plan Maps, there are several berms left in place. One is adjacent to the Phase 2 open water pond, and another is located north of the Phase 2 pond adjacent to the location of Overburden Stockpile A as depicted on the mining plan map. It appears these stockpiles will be constructed with topsoil. According to the Mining Plan (Page D3), no permanent stockpiles will be located at the site. Also, all the topsoil salvaged during the mining process must be re-spread over designated disturbed areas for reclamation. These "berms" should not exist at the end of reclamation, please remove them from the reclamation plan map. These berms are being provided as shown at the request of Mr. Livingston, the landowner. To be consistent with DRMS requirements, we have noted on Exhibit F that the berms will be constructed of overburden and then topped with 10 "-12 " of topsoil. We have also modified Exhibit D (Page D3) to clarify that these berms will be the only permanent stockpiles located on the site. 6.4.7 EXHIBIT G - Water Information 17. Page 5 of Attachment G-1, the Groundwater Monitoring and Mitigation Plan states once mining begins, monitoring will be conducted on a monthly to bi-monthly basis until a quasi-steady state condition is reached. Please commit to monitoring the wells on a monthly basis. Attachment G-1 has been modified to commit to a monthly monitoring schedule. 18. In order to reduce the frequency of groundwater monitoring, Lafarge will need to submit a Technical Revision to request this change with evidence to substantiate this quasi steady-state condition is reached. Noted 19. Please commit to obtaining an approved Substitute Water Supply Plan and a Well Permit from the Office of the State Engineer prior to exposing groundwater at the site. Lafarge commits to this as stated on page G-3 of Exhibit G. 20. Please commit to submitting a copy of the Jones Ditch agreement prior to mining and dewatering south of the Cache la Poudre River. Or if such an agreement cannot be reached, Lafarge must submit and receive approval of a Technical Revision proving that the mining/dewatering operation south of the Cache la Poudre River will not impact the Jones Ditch. As stated on page 7 of Attachment G-1, an agreement with the Jones Ditch will be in place prior to dewatering and mining south of the Cache la Poudre River. We have added language to this section that goes on to state that if an agreement cannot be reached, Lafarge will first submit and receive approval of a Technical Revision proving that the mining/dewatering operation south of the Cache la Poudre River will not impact the Jones Ditch.