2010-08-10_REPORT - m1980244

• Permit No: m1980244
• IBM Index Class Name: REPORT
• Doc Date: 8/10/2010
• Doc Name: QA REPORT Phase 4B/C Triangle Liner Certification Aug 10, 2010
• From: CC&V
• To: DRMS
• Media Type: D
• Archive: No

Cripple Creek & Victor Gold Mining Company
Cresson Project
Quality Assurance Monitoring and Test Results
Phase 4B /C Triangle Liner Certification
August 10, 2010
4.0 EARTHWORK CQA TESTING AND MONITORING
The following sections summarize results of the earthwork CQA testing and monitoring
performed by AMEC.
AMEC conducted CQA testing of earth materials used for construction. Table 3 presents
specified and observed CQA testing frequencies.
In accordance with the AMEC CQA Plan, when an AMEC monitor observed deficiencies, the
monitor determined the nature and extent of the problem and notified Ames and /or CC &V.
When unsatisfactory test results identified a deficiency, AMEC performed additional tests to
define the extent of the deficient area. Ames corrected deficiencies to meet the requirements of
the specifications, and AMEC retested and /or approved the corrected deficiency prior to any
additional related work
4.1 Results of Laboratory Soils Testing
AMEC performed laboratory testing of soils during all aspects of the construction. All testing was
performed on -site. To verify that the earth materials used during construction met project
specifications, AMEC completed the following tests in accordance with the American Society for
Testing and Materials (ASTM):
■ Rock corrected density values (ASTM D4718);
■ Grain size distribution (ASTM D1140 for material finer than the No. 200 sieve, and
ASTM C117 and C136 for coarse material);
■ Moisture content (ASTM D2216);
IN Atterberg limits (ASTM D4318);
■ Standard Proctor compaction (ASTM D698);
• Permeability (ASTM D5084, Method D);
■ In -place density testing (ASTM D2922); and
■ Soil description (ASTM D2488)
S \PROJECTS\1125E CCV CQA \H2 - DESIGN \TRIANGLE \FINAL \TRIANGLE CERTIFICATION REPORT FINAL REV1 DOC