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<br />• <br /> <br />2.4 SURFACE WATER HYDROLOGY <br />There are no perennial streams at the site. [Natural <br />drainages which intersect the cuts and fills at the site are <br />intercepted by drainage channels which divert water flows <br />away from the fills. Direct precipitation on the benched <br />areas is collected and diverted by a system of surface grad- <br />ing and diversion ditches. The Merrick and Company report ref- <br />erenced previously describes the existing surface water col- <br />lection system in detail. It also recommends maintenance pro- <br />cedures and improvements to the existing system which will <br />insure that the ponding of water on fill surfaces is avoided <br />and the time taken to divert direct precipitation from the <br />fill is minimized. <br />- 9 - <br />GEbNYDRO CONSULTING, INC. <br />