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<br />Section 02200 Page 2 of 18 January 14, 2011 <br />Earthworks Revision 0 <br /> <br />S:\Projects\1125G Squaw Gulch Valley Leach Facililty Design\I - Tech Specs\02200.r0.doc <br />cooperating with CQA Monitor during all testing activities. CONTRACTOR shall provide <br />equipment and labor to assist CQA Monitor in sampling, if requested, and shall also provide access <br />to all areas requiring testing activities. Quality Control testing shall be the responsibility of the <br />CONTRACTOR. <br />D. All excavation, backfill, and grading operations shall be carried out under the observation of <br />MANAGER and CERTIFYING ENGINEER. <br />E. Any work found unsatisfactory or any work disturbed by subsequent operations before acceptance is <br />granted shall be corrected by CONTRACTOR, at its sole cost. <br />PART 2: PRODUCTS <br />2.01 MATERIALS: <br />A. Fill materials will be soils, gravels, or rock fill approved by MANAGER and CERTIFYING <br />ENGINEER. The materials shall be free of organic matter, debris, frozen material, and other <br />deleterious materials, and shall be excavated, as required, as follows: <br />1. Structural Fill - material as approved by MANAGER and CERTIFYING ENGINEER <br />conforming to the following SPECIFICATION: <br />U.S. Standard <br />Sieve Size <br />Percent Passing <br />by Dry Weight <br />24 – inch 100 <br />No. 200 0 – 25 <br />Plasticity Index: 30 maximum <br /> <br />2. Select Structural Fill - well graded granular soil or sound, hard, durable, rockfill excavated <br />on-site or supplied from off-site mine waste rock with a maximum particle size of 3 inches <br />as approved by MANAGER and CERTIFYING ENGINEER. <br />3. Underdrain Fill - free draining, material approved by MANAGER and CERTIFYING <br />ENGINEER conforming to the following SPECIFICATION. <br />U.S. Standard <br />Sieve Size <br />Percent Passing <br />by Dry Weight <br />12-inch 100 <br />No. 200 0 – 6 <br />Point load tensile strength: > 300 psi <br />Plasticity Index: 0 <br />