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Gregg R. Squire • • <br /> May 14, 1997 <br /> Page 4 <br /> After all grading and topsoiling have been completed, it is estimated that approximately 85 <br /> acres of the site will remain to be seeded. This includes initial seeding as well as selective <br /> reseeding of some areas. <br /> 3. "The City of Boulder, in their April 22, 1997 objection letter(Page 5 of 13) expressed a <br /> concern that the amendment proposes a significantly lower grade of the mined site than in <br /> previously approved reclamation plans, and that these lower grades have created the potential to <br /> divert and redirect floodwaters from South Boulder Creek to the north. 'This manmade change <br /> in topography can cause catastrophic flooding in local neighborhoods north of the Deepe Farm <br /> Pit.' <br /> "Please describe how much lower the grade will be under Amendment 002 and respond to the <br /> City's concerns." <br /> Response to#3: <br /> Western Mobile has reviewed the City of Boulder's letter dated April 22, 1997, and in <br /> particular the "land grades" section found on page 5 of said letter. In response to the City's <br /> concerns,please consider the following: The City alleges that the proposed Amendment will <br /> result in "significantly lower grade of the mined site than in previously approved Reclamation <br /> Plans." However, upon a close examination and comparison of the currently approved <br /> Reclamation Plan with the proposed Amended Reclamation Plan (002), it can be seen that for <br /> the most part these are virtually no grade differences between the two plans and that, in fact, <br /> grades are higher in certain areas of the Amended Reclamation Plan, as shown in cross sections <br /> 2 and 2A, which were prepared by the City of Boulder(see enclosed). <br /> The City goes on to allege that"these lower grades have created the potential to divert and <br /> redirect flood waters form South Boulder Creek to the north." In fact, the grades shown on the <br /> Amended Reclamation Plan are not any lower than the currently approved grades of the Deepe <br /> Pit; therefore, "the potential to divert and redirect flood waters from South Boulder Creek to the <br /> north," if any, is no different between the currently approved Reclamation Plan and the <br /> Amended Plan. The fall across the Deepe Pit from Stage No. 6 north to Stage No. 2 is <br /> approximately 40 feet regardless of which Reclamation Plan is implemented. <br /> Finally, the City alleges that"This manmade change in topography can cause catastrophic <br /> flooding in local neighborhoods north of the Deepe Farm Pit." The fact of the matter is the risk <br /> of flooding in local neighborhoods north of the Deepe Farm Pit is a function of the design of <br /> Highway 36, especially its horizontal and vertical alignment and its crash barrier, the limited <br />