Laserfiche WebLink
DRMS Response: The proposed temporary seed mix for use on the topsoil stockpile was <br />provided on Table 2.05.4-3. The proposed mix includes both yellow sweetclover and <br />alfalfa. The Division recommends removing the sweetclover from the mix as it tends to <br />persist and spread. With the removal of the sweetclover, the mix will be acceptable. <br />Please remove sweetclover from the mix and re-submit the text page. <br />Northfield Response: Kent Crofts recommends sweetclover remain in the temporary seed <br />mix. <br />DRMS Response: The Division requested Northfield to remove sweet clover from the <br />temporary seed mix. The reason for this is that it is a persistent introduced species. One <br />other legume that established quickly, Ranger alfalfa, is in the temporary seed mix and <br />there are several fast growing annuals which should be sufficient for erosion control. <br />Northfield's response states that Kent Crofts recommended sweetclover be retained and <br />he has experience in Fremont County at the Southfield Mine. sweetclover was not <br />approved for use at the Southfield Mine. The Division is not approving sweetclover in the <br />temporary seed mix. Please remove sweetclover from the Temporary seed mix in <br />Table 2.05.4-3 and revise the table accordingly. <br />22. NP has committed to salvage six inches of topsoil. Based on the soil sampling, it appears <br />that the soil deeper than 6 inches is a suitable growth medium. Reclamation experience <br />shows that replacing 12 inches of topsoil on the surface after grading will improve plant <br />growth. The Division recommends that at least 12 inches of topsoil be salvaged. Please <br />note that the objective of reclamation is to mimic the surroundings and blend the <br />reclaimed site with undisturbed area. Therefore, rocks and gravelly material from the <br />surface should not be discarded, but should be salvaged with the soil cover. (Rule 4.09) <br />Northfield Response: Permit text has been changed to reflect a change in soil recovery <br />depth. <br />DRMS Resnonse: In their NP has committed to salvage ten inches of topsoil. The <br />Division had recommended a minimum of 12 inches to be salvaged and it is not cleaz <br />why NP proposed 10 inches. As stated eazlier, experience shows that replacing 12 inches <br />of topsoil on the surface after grading will improve plant growth. The Division had also <br />recommended that rocks and gravelly material from the surface should not be discarded, <br />but should be salvaged with the soil cover. NP did not address this suggestion. The <br />gravelly material could be included in the 12 inches. Please explain why 10 inches was <br />proposed and discuss whether the surface rocks and gravelly material will be salvaged <br />and stockpiled. <br />Northfield response: Lengthy response regazding depth of topsoil. <br />Division Response: Ten inches of topsoil salvage and replacement is acceptable. <br />Response accepted. <br />