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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 <br />acceptance is 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. Stmctural Fill - material as approved by MANAGER and CERTIFYING <br />ENGINEER conforming to the following SPECIFICATION: <br />Plasticity Index: <br />• <br />30 maximum <br />2. Select Structural Fill -well graded granulaz soil or sound, hazd, durable, rockfill <br />excavated on-site or supplied from off-site mine waste rock with a maximum particle <br />size of 3 inches as approved by MANAGER and CERTIFYING ENGINEER. <br />3. Underdrain Fill -free draining, material aggroved by MANAGER and CERTIFYING <br />ENGINEER conforming to the following SPECIFICATION. <br />U.S. Standard <br />`; Sieve`Size Percent Pas§iag <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 />I • <br />Section 02200 Page 2 of 17 Mazch 22, 2000 <br />Earthworks Golder Associates Revision 7 <br />IbOIOBS\04i-2t]OWC CERrhiCA'f10N REPORTPHASE NC OSA CER"MPPEND[C~SNPPENDIX E rEC1BV[CAL SPEC~[CA'rtONSW2200R1.1)OC <br />