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Test number LLT-l la was assembled by first placing approximately 4.5 inches of soil <br />liner fill in the bottom of the cell, and then compacted as described in Section 3.0. <br />Next, a 10 inch diameter piece of 80 mil LLDPE geomembrane was placed on top of <br />the soil liner fill with the textured side down. Finally, the drain cover fill material was <br />then placed in one lift on top of the liner to an approximate thickness of six inches. The <br />sample was then loaded as described above for 24 hours after which time the sample <br />was disassembled and the geomembrane inspected for damage. The geomembrane <br />sample showed some minor signs of distress, i.e.: indentations, and surface scratches, <br />but possessed no pinholes when held in front of a light source or during vacuum <br />testing. The post test condition of the geomembrane is shown in Figure 4. There <br />appeared to be no movement, rotation, or translation of the rock that had been <br />imbedded in the soil liner fill material. Figure 5 shows the soil liner fill material prior <br />to and after obtaining across-section through the sample tested in LLT-11a. <br />4.0 Observations <br />In the test, minor amounts of distress were observed on the geomembrane sample. The <br />drainage material used for the geomembrane cover material showed no significant <br />change in particle size, although some of the larger particles did appear to have <br />cracked. No apparent changes were noticed in the soil liner fill. <br />If there are any questions or concerns about this report or the information contained in <br />it, please feel free to contact me at any time. <br />Sincerely, <br />COLDER ASSOCIATES INC. <br />Anthony S. Fontaine <br />Laboratory Manager <br />Attachments: Figures <br />