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Corey Heaps <br />CAM Colorado LLC <br />June 21, 2011 Page 43 <br />making the likelihood of establishing a protective vegetative cover unreasonable. <br />However, without adequate vegetative cover, long -term erosion control within the <br />industrial area needs to be addressed. The text states that erosion caused by water will be <br />controlled by "restoring the land to the approximate original contour [which] will minimize <br />or eliminate erosion" because the "existing berms contain most of the precipitation that <br />falls on the industrial area." Erosion due to wind is not addressed in this section. Please <br />reference Rule 4.17 -- Air Resource Protection and the appropriate measures that will <br />be implemented to control wind erosion and air quality. Section 2.05.6(2)(a)(ii) states <br />that the evaporation ponds will be covered with 6 inches of clean fill. Please give a <br />description of the fill material and how the wind erosion potential of the site will be <br />minimized. AIso, Rule 4.15.1(3) is cited incorrectly in the text. The correct rule is <br />4.15.10(3). Please fix this typo. <br />71. For the Noxious Weed Control Plan, please include a broader statement in the second <br />paragraph to comply with 4.15.1(5). Species to be considered include those that are on the <br />State `A' List and those that are on the Mesa County noxious weed list. The County Weed <br />Supervisor should be consulted for appropriate treatment methods. <br />CAM Response: Please see revised page 2.05 -33. <br />Division Response: Response accepted. <br />72. In the third paragraph of the Noxious Weed Control Plan, please delete "If required ", at the <br />beginning of the paragraph and replace it with, "If salt cedar plants establish on the <br />disturbed area... ". <br />CAM Response: Please see revised page 2.05 -33 <br />Division Response: Response accepted. <br />73. Section 2.05.4(2)(e)(vi). It seems that CAM is not proposing to seed the disturbed <br />land/industrial portion of the permit area. If that is the case, please clarify and address a <br />gravel surface or other measures that will be used to control wind and water erosion as <br />required by Rule 4.15.10(3). <br />CAM Response: Please see discussion in section 2.05.4(1) for a discussion regarding Rule <br />4.15.10(3). <br />Division response: This item has not been adequately addressed. Please see comment 70 <br />above and update the PAP accordingly. <br />74. CAM is not proposing a woody plant density standard for revegetation success. Per Rule <br />4.15.8(7), for areas with a post - mining land use of fish and wildlife habitat, minimum <br />stocking levels, planting arrangements, and methods for mitigation of potential adverse <br />