2011-10-06_REVISION - M1980244 (3)

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