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Laboratory Testing <br />As per the CQC/QA plan, EEC personnel, during the site visit on February 17 and March 22, 2017, <br />obtained a relatively undisturbed sample of the previously placed and compacted shale/siltstone bedrock <br />material by hand driving a "Shelby -tube" device approximately 12 inches into the compacted zone. This <br />was performed to obtain an in -tact sample for hydraulic conductivity testing in general accordance with <br />ASTM D 5084 Specifications. The samples were obtained at the general location of EEC Field Density <br />Test Nos. 2 (2-17-17) and 6 (3-22-17). Laboratory testing performed on the retrieved hydraulic <br />conductivity sample included a remolded "Flex -Wall Permeameter" test in general accordance with <br />ASTM Specification D 5084 Method A; results are shown below and are also included on the attached <br />summary sheet. <br />_ON9,)e�)J-,J III � GJ1 �J del J Z-.1 �i x-2211 �JAM�L > <br />ASCI — Turnpike Reservoir — Erie, Colorado <br />EEC Project No. 1174016 <br />April 7, 2017 <br />Page 3 <br />Based on the reported field density test results and the laboratory test results as presented herein, <br />these <br />two (2) lifts within this phase of the placed and compacted shale/siltstone bedrock material generally <br />conforms to the project specifications and the CQC/QA plan dated March 12, 2013. <br />We appreciate the opportunity to work with you on this project. If you have any questions concerning <br />this report, or if we can be of further service to you in any other way, please do not hesitate to contact <br />US. <br />Very truly yours, <br />Earth Engineer! <br />- 7/7 <br />Consultants, LLC <br />David A. Richer, P.E. <br />Senior Geotechnical Engineer <br />cc: Asphalt Specialties Company Mr. Dan Hunt (dan(a�asnhaltsuecialties.com) <br />Mr. Rob Laird (R obL(a%asphaltspecialties.com) <br />Hydraulic Conductivity Test Results <br />Laboratory Testing - Soil Classification <br />Hydraulic Conductivity <br />Sample I <br />n- J In -Situ Dry Final Moisture <br />Final Dry <br />Hydraulic <br />oisture, % Density, PCF Content, % <br />Density, PCF <br />Conductivity, cm/sec <br />1 — (2-17-17) <br />16.3 105.7 <br />26.7 <br />105.0 <br />2.96 x 10'' <br />2-(3- <br />11.1 112.3 <br />21.7 <br />112.7 <br />4.25 x 101 <br />,.omwvnn 1S. LLC <br />ASCI — Turnpike Reservoir — Erie, Colorado <br />EEC Project No. 1174016 <br />April 7, 2017 <br />Page 3 <br />Based on the reported field density test results and the laboratory test results as presented herein, <br />these <br />two (2) lifts within this phase of the placed and compacted shale/siltstone bedrock material generally <br />conforms to the project specifications and the CQC/QA plan dated March 12, 2013. <br />We appreciate the opportunity to work with you on this project. If you have any questions concerning <br />this report, or if we can be of further service to you in any other way, please do not hesitate to contact <br />US. <br />Very truly yours, <br />Earth Engineer! <br />- 7/7 <br />Consultants, LLC <br />David A. Richer, P.E. <br />Senior Geotechnical Engineer <br />cc: Asphalt Specialties Company Mr. Dan Hunt (dan(a�asnhaltsuecialties.com) <br />Mr. Rob Laird (R obL(a%asphaltspecialties.com) <br />