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I <br /> Cripple Creek&Victor Gold Mining Company 14, <br /> Squaw Gulch VLF Phase 1 (9,450 foot to 9,550 foot bench) amec <br /> Final Report Addendum foster <br /> Quality Assurance Monitoring&Test Results wheeler <br /> December 1, 2015 <br /> 1' - 2' <br /> UNDERDRAIN ROCK <br /> (BLANKET DRAIN) <br /> i NON-WOVEN <br /> i <br /> GEOTEXTILE <br /> STRUCTURAL FILL <br /> TO SUBGRADE <br /> ELEVATION <br /> y (VARIES) <br /> .r�.^ <br /> INTERSECTS <br /> TERTIARY <br /> UNDERDRAIN <br /> AT BENCH <br /> OR SLOPE <br /> UNDERDRAIN PROFILE DETAIL <br /> STRUCTURAL FILL <br /> TO SUBGRADE <br /> ELEVATION <br /> (VARIES) <br /> NON-WOVEN <br /> GEOTEXTILE <br /> 1' - 2' <br /> UNDERDRAIN ROCK <br /> (BLANKET DRAIN) <br /> SUBGRADE <br /> UNDERDRAIN SECTION DETAIL <br /> • A lined cut-off tertiary underdrain was constructed on the east slope to "catch" and <br /> direct natural groundwater springs to the underdrain piping system. This was added <br /> due to small amount of fall available to intercept the exiting tertiary drain. By using a <br /> small amount of liner in an isolated section, Manning's Roughness Coefficient is <br /> decreased which allows for a flatter slope. <br /> • The leak detection location was adjusted on the east side of the Phase 1 VLF to <br /> move it out of the 9,550 foot construction bench. <br /> The above drawing additions or deviations meet the intent of the SQVLF design as <br /> permitted. <br /> 31 <br />