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x: Applegate <br /> Group, lna. <br /> Water Resource Advisors for the West <br /> RECEIVED <br /> February 10, 2016 FEB 112016 <br /> DIVISION OF RECLAMATION <br /> MINING AND SAFETY <br /> Alex Schatz <br /> Brannan Sand and Gravel, LLC <br /> 2500 Brannan Way <br /> Denver, Colorado 80229 <br /> RE: Brannan Pit 29—French Drain Installation—Mining Permit No. M-1980-183 <br /> Dear Mr. Schatz: <br /> In response to groundwater mounding issues to the south of Pit 29, a French Drain system was <br /> installed with the invert set at the historic groundwater elevations prior to slurry wall installation. <br /> A copy of the approved plan and profile is attached for reference. The attached construction <br /> observation report summarizes our observations during installation activities on December 70', <br /> 2015, indicating that the drain, surrounding bedding material and filter fabric were installed in <br /> conformance with the approved plans. Also attached is the as-built survey performed by Bayer& <br /> Associates, Inc. showing that the drain was installed at the specified elevations. <br /> If you require any additional information,please do not hesitate to contact me at(303) 452-6611 <br /> Cordially, <br /> Applegate Group, inc. <br /> Carrie Herbolsheimer,PE, CFM <br /> Water Resource Engineer <br /> cc: AG File No. 10-116 <br /> N:\10116 Brannan Pit 290isciplines(Technical)\WRPM\Water Rights\Amendment 2.2\Certification lettendocx <br /> 7405 W.Highway 50,Suite 123 1490 W.121't Avenue,Suite 100 823 Grand Avenue,Suite 120 <br /> Salida,CO 81201 Denver,CO 80234 Glenwood Springs,CO 81601 <br /> 303452-6611 <br /> www.applegategroup.com <br />