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WMU FU -03, WMU F -West Leachate Impoundment and Desilting Basin February 2004 <br />Forward Landfill Job No. 021605.03 <br />Vector's CQA monitor physically verified the LCRS gravel thickness at a grid spacing <br />less than 50 ft on center. Once the CQA monitor approved the thickness of the gravel <br />layer, the geotextile was place on top in preparation for operations layer material. <br />Several subgrade survey points from the as -built survey on the floor were above the <br />specified design tolerance. These points were approved, provided the overlying low - <br />permeability layer was a minimum 2 feet thick and the required minium grades were <br />achieved. <br />r� <br />0 <br />Vector Engineering, Inc. - 143E Spring Hill Drive • Grass Valley, CA 95945 • (530) 272-2448 <br />-18- <br />