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<br />• Exhibit G -Water Information (continued) <br />other development has virtually eliminated over 6 square miles of the Spring Creek watershed from <br />reaching the Schmidt property. The Savage report concludes that this drainage does not contain <br />jurisdictional wetlands or riparian areas. It is for this reason that the west side of the pit will mine <br />gravel at a grade of 3.OH: I.OV from the permit boundary east of the Spring Creek channel. <br />B&B will ensure that the flows in the unnamed channel and in the perennial spring are maintained <br />in their current condition, thus protecting the current unnamed channel and its associated plants. <br />Steps to be employed by B&B to accomplish this are described in the following section on water <br />mitigation measures. <br />3. Water Mitigation Measures <br />. Prevention of potential Spring Creek water from entering the pit. <br />It is not expected that flows in Spring Creek will be encountered in the pit for the following <br />reasons: <br />a) Over 95% of the original Spring Creek watershed has been diverted away from the Schmidt <br />property due to County airport development. <br />b) the landowner does not remember seeing any flows in Spring Creek in years. <br />c) soil borings placed in the channel bottom showed very dry conditions. <br />d) the channel bottom consists of a clay\sand soil which should not allow much seepage to the <br />surrounding area. <br />e) B&B's permit boundary is (inmost cases) 50 feet from the channel bottom. At one point, the <br />channel bottom is 30 feet from the permit boundary. Excavation will take place 10 feet inside this <br />boundary, adding additional buffer and the mild slope of 3.OH: I.OV should also help in preventing <br />. seepage. It is possible that a strong summer thundershower or substantial spring thaw could cause <br />Carol Ann Petttvt CDMG Application 4 2 <br />