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Exhibit D- Extraction Plan <br />to 400 total linear feet combined along either side of the advancing wall where it serves <br />to define the predetermined boundary of the extraction limits shown on Exhibit C-2: <br />Extraction Plan Map. Concurrent grading follows immediately behind the trailing side <br />slopes as they occur along the extraction limits. This morphing extraction front, with its <br />advancing wall, trailing side slopes, and concurrent reclamation along the extraction <br />limits is approximate for all active Tracts. <br />The 1600± linear foot total extraction front is 'morphing' in that the total linear feet of <br />the front will not exceed 1600± linear feet, however, the advancing wall and side slopes <br />may deviate from the 'standard' lengths described above. For example: If the <br />advancing wall is only 600± linear feet, trailing side slopes may have a combined length <br />pending finished grading of up to 1,000± linear feet. Another example is if the <br />advancing wall is 1,400± linear feet long, there is only 200± linear feet of trailing wall, <br />and operations must be more Johnny on the spot in keeping up with concurrency in this <br />configuration. So the 'morphing of the front generally affects the pace of concurrent <br />reclamation of the trailing wall. <br />Extraction activities will continue to remove aggregate from approximately 15-25± feet <br />along the southwest, to a mean depth of 35-40.0± feet at center, with a potential total <br />depth to 70-80± feet along to the Cache La Poudre River. Since anomalous depths <br />greater than 40± feet may occur, any extraction deeper than 40± feet in depth, may be <br />extracted either dry, or wet. If extracted wet, a dredge may be utilized for the removal. <br />Regardless, all final basin (pond) slopes will conform at a minimum to Rule 3.1.5(7). <br />The general direction of extraction activities over the diverse Tracts is shown on Exhibit <br />C-2: Extraction Plan Map. Extraction will occur no closer than 10± feet from the permit <br />boundary, man made structures, easements and right-of-ways; except for well heads <br />and above ground oil and gas facilities. Extraction will occur to within 25± feet of well <br />heads and related above ground facilities. Extraction around well heads will be <br />concurrently backfilled to maintain a 100± foot buffer from the balance of extracted <br />lands. At all times, safety will take precedent and over -ride all other conditions in time <br />with a matter of safety or emergency respective to and all aspects of the approved <br />permit. <br />Tracts are used instead of Phases to describe the activities, since each Tract can be <br />accessed concurrently instead of sequentially with the other; and per Exhibit L — <br />Reclamation Costs, accelerated extraction only serves to decrease the overall <br />reclamation liability and accelerate final reclamation and site stabilization of the <br />property as a whole. Therefore, any method that accelerates the above timetable will <br />be utilized, based upon market conditions and the capacities of the operator. <br />Because the permit area is entirely affected and degraded from past uses, the method <br />of extraction functions to effect reclamation first on the most disturbed portions of the <br />parcel; essentially where soil is absent, hence reclaiming previously spoiled lands that <br />Varra Companies, Inc. Permit M-2010-049 5 <br />Western Sugar Reclamation Land Development Project OMLR 112 Permit Amendment 2015 <br />