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L <br />' ' ��4 src'g. -- . <br />SECTION 02210.0 UNDERGROUND WORKING REMEDIATION <br />PART E GENERAL <br />1.01 SUMMARY <br />This SPECIFICATION describes the activities associated with the remediation of the underground workings <br />located within the limits of the valley leach facility. <br />1.02 RELATED SECTIONS <br />Refer to the following Sections for related work: <br />■ Section 02200.0 - Earthworks <br />■ Section 03300.0 - Cast In Place Concrete <br />■ Section 03310.0 - Cemented Rockfill <br />1.03 QUALITY ASSURANCE <br />A. All work shall be monitored and tested in compliance with the requirements of the <br />SPECIFICATIONS. <br />B. All CQA soils testing (both field and laboratory testing) will be the responsibility of CQA Monitor, as <br />40 identified in the Earthworks CQA plan. CONTRACTOR shall be responsible for cooperating with <br />CQA Monitor during all testing activities. CONTRACTOR shall provide equipment and labor to <br />assist CQA Monitor in sampling, if requested, and shall also provide access to all areas requiring <br />testing activities. Quality Control testing shall be the responsibility of the CONTRACTOR. <br />C. All excavation, backfill, and grading operations shall be carried out under the observation of <br />MANAGER and CERTIFYING ENGINEER. <br />D. 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 />1.04 SUBMITTALS <br />A. CONTRACTOR shall provide method of Coarse Shaft Backfill and Select Structural Fill placement. <br />B. CONTRACTOR shall provide method of compacting Native material, Coarse Shaft Backfill and <br />Select Structural Fill, to meet the compaction requirements identified in Sections 3.02 and 3.03. <br />C. CONTRACTOR shall provide blasting design for approval by MANAGER. <br />PART 2: PRODUCTS <br />2.01 MATERIALS <br />A. Fill materials will consist of Structural Fill, Select Structural Fill, and Coarse Shaft Backfill identified <br />in Section 2200.0, Cast -In -Place Concrete identified in Section 3300.0 and Cemented Rockfill <br />identified in Section 3310.0. <br />Section 02210 Page 1 of 3 September 3, 2008 <br />Underground Working Remediation Revision 1 <br />SAProjects \1125E CCV CQA \I - Tech Specs \02210.r1.doc <br />