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Tasks <br />TEST METHOD <br />TEST FREQUENCY <br />Appropriate Part <br />Modified Line of <br />1 per 5,000 yd or change of <br />Optimums Evaluation <br />material type <br />using 1 Proctor technique <br />Degree of Saturation <br />1 per 5,000 yd or change of <br />Calculation <br />material type <br />Hydraulic Conductivity <br />1/20,000 yd <br />with Line of Optimums(i) <br />Hydraulic Conductivity <br />1 /10,000 yd or one per lift <br />without Line of <br />whichever yields the larger number <br />Optimums(l) <br />of tests <br />Max loose lift thickness <br />Such that compacted lift <br />Frequency defined per professional <br />thickness is no greater <br />judgment <br />than length of penetrating <br />feet tolerance: + 0.0" <br />Borrow Source <br />Testing Before <br />Construction C A <br />Water Content <br />ASTM D2216 <br />1 test per 2620 y d <br />Atterberg Limits <br />ASTM D4318 <br />1 test per 6540 y d <br />Percentage Fines <br />ASTM D422/1140 <br />1 test per 6540 d <br />Percent Gravel <br />ASTM D422 <br />1 test per 6540 d <br />Compaction Curve <br />ASTM D698 <br />1 test per 6540 yd <br />Hydraulic conductivity <br />ASTM D5084 <br />1 test per 13080 yd <br />Sub -grade <br />Preparation <br />Scarification <br />Should be scarified prior <br />to placement of initial lift <br />of soil liner material. <br />Elevation and slope <br />Standard approved survey <br />verification <br />practices. <br />Proof rolling <br />No more than 2" <br />Continuous observations <br />Experienced engineering <br />deflection allowable based <br />documented in a daily log while <br />technician, construction <br />on visual observations, or <br />activity ongoing <br />materials testing <br />less as needed to meet <br />technician, or geologist. <br />specified liner compaction <br />density. <br />Initial cut and fill to <br />achieve rough base grades <br />Grubbing: tree, rock, debris <br />Should include material <br />removal <br />disposal. Note: <br />unacceptable material in <br />the sub -grade should be <br />detailed in the spec. <br />11 <br />