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Earth Engineering Consultants,LLC <br /> furnpt ervoir—Erie,Colorado <br /> ject No. 1134 11yE 6E�,�� , vivA <br /> 2016 �1� H'9T•L4?T. LA V <br /> Their resources includes personnel, heavy highway equipment such as Dozers, Front End Loaders, <br /> Self-propel Compacter, Water Truck and 30 Yard Haul Trucks to place uniform lifts not to exceed 2-3 <br /> foot lifts. The equipment, especially the dozer and compactor, simulate the compaction efforts <br /> needed. Each lift is tested for percent compaction along with a Flex-Wall permeability testing <br /> procedures; with field density results presented herein, and Flex Wall results being provided at a later <br /> date. <br /> The field density tests were completed at random locations and elevations in the embankment fill zone <br /> as noted herein, and were performed in general accordance with ASTM Specification D6938. The <br /> results of the field density tests completed by EEC personnel during the referenced period are shown <br /> on the attached summary sheets. The field density test results, at the locations as described herein, <br /> conformed to the minimum project compaction requirements of at least 90% of standard Proctor <br /> maximum dry density(ASTM Specification D698) and were within the allotted moisture content range <br /> of 7%to 18% of the material's optimum moisture content, as per the agreed upon CQC/QA plan dated <br /> March 12, 2013. <br /> Laboratory Testing <br /> As per the CQC/QA plan, EEC personnel, during the site visit on June 20, 2016, obtained a relatively <br /> undisturbed sample of the previously placed and compacted shale/siltstone bedrock material by hand <br /> driving a "Shelby-tube" device approximately 12 to 18-inches into the compacted zone. This was <br /> performed to obtain a sample for hydraulic conductivity testing in general accordance with ASTM D <br /> 5084 Specifications. The sample was obtained at the general location of EEC Field Density Test No. 27. <br /> Laboratory testing performed on the retrieved hydraulic conductivity sample included a remolded "Flex- <br /> Wall Permeameter" test in general accordance with ASTM Specification D 5084 Method C, results are <br /> shown below and are also included on the attached summary sheet. <br /> d-e>NPL?--rNrrY ITT oN &o`ao JU6 FIGL�✓AMVLE <br /> Hydraulic Conductivity Test Results <br /> Hydraulic Conductivity Laboratory Testing-Soil Classification <br /> Sample ID n-Situ In-Situ Dry Final Moisture Final Dry Hydraulic <br /> oisture,% Density,PCF Content,% Density,PCF (onductivity,cm/sec <br /> 5 10.6 116.0 14.7 120 2.6 x 10-6 <br /> Based on the reported field density test results and the laboratory test results as presented herein, this <br /> phase/lift of the placed and compacted shale/siltstone bedrock material generally conforms to the <br /> project specifications and the CQC/QA plan dated March 12, 2013. <br />