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Section B -Rule 4 <br />I. Roads <br />A. Haul Roads <br />Altemative criteria and specifications were used during the design of haul roads. <br />These criteria and specifications are proposed for approval by the Division <br />following an analytical demonstration that the roads will be environmentally <br />sound, have a minimum static safety factor of 1.3, and reclamation can be <br />achieved. The proposed criteria and specifications pertain to the portion of the <br />haul road going through pond 007 (4.03.1(1)(e)). <br />2. The applicant has made a demonstration, based on site specific precipitation <br />rates, percent of grade, and soil properties, that use of altemative specifications <br />for culvert sizing will not result in increased erosion. The Division has approved <br />the use of the alternative specifications for the culverts on the extension of W. 5th <br />Street (4.03.1(4)(e)(vi)). <br />3. Alternative criteria and specifications were used during [he design of the <br />reconstruction of county BB road, 2700 road, and the detour road. The criteria <br />used were the Montrose County Road and Bridge specifications for collector <br />roads. Details of these specifications can be found in section 2.05.3(3)-10 of the <br />permit. <br />II. Hvdroloeic Balance <br />A. Water Quality Standazds and Effluent Limitations <br />1. The Division proposes to grant two fixed small azea exemptions (SAE) and a <br />"traveling" SAE from use of sediment ponds due to the limited size of the area <br />and due to the fact that ponds and treatment facilities aze not necessary for the <br />drainage to meet the effluent limitations of Rule 4.05.2 and applicable State and <br />Federal water quality standazds for receiving streams and also due to the fact that <br />no mixing of surface drainage with a discharge from underground workings will <br />occur. The two fixed azeas to be exempted are shown on Map 2.05.3(3)7-1 and <br />aze in portions of the permit azea where the terrain is undulating and these azeas <br />cannot be made to drain to any sediment pond. The traveling SAE area will drain <br />either into the advancing pit or be routed to a "traveling" total containment <br />impoundment, which will move as the pits are advanced. Each of the designed <br />impoundments will be installed prior to the advancing topsoil removal campaign <br />requires them and will be successively "reclaimed" be the advancing pit. See <br />section 2.05.3(3)7 of the permit for further details, (4.05.2(3)(b)(i)). <br />]9 <br />