2010-08-17_REVISION - M1980244

• Permit No: M1980244
• IBM Index Class Name: REVISION
• Doc Date: 8/17/2010
• Doc Name: QA Monitoring & Test Results- Phase IV B/C Triangle Liner Cert.- Cover to Append. C, Weekly Rpts.
• From: CC&V
• To: DRMS
• Type & Sequence: AM9
• Email Name: BMK
• 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
6.0 GEOSYNTHETIC CQA TESTING AND MONITORING
The following sections describe the CQA activities performed by AMEC for the geomembrane
installed in the re-certified areas.
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 Lonestar and/or CC&V.
When unsatisfactory test results identified a deficiency, AMEC performed additional tests to
define the extent of the deficient area. Lonestar corrected deficiencies to meet the requirements
of the specifications, and AMEC retested and/or approved the corrected deficiency prior to any
additional related work. The following sections include discussions of the deficiencies
encountered.
6.1 Geomembrane
CQA activities conducted by AMEC during the installation of the LLDPE geomembrane
consisted of the following:
¦ Conformance sampling and testing of the geomembrane;
¦ Observation and approval of the SLF surface prior to deployment of geomembrane;
¦ Observation and documentation of geomembrane deployment, including verifying sheet
thickness and overlap and documenting panel layout;
¦ Observation of trial seam sample testing and documentation of results;
¦ Observation and documentation of field seaming;
¦ Identification of destructive seam sample test locations, observation of destructive seam
sample testing, and documentation of test results;
¦ Observation and documentation of geomembrane repairs; and,
¦ Observation and documentation of non-destructive pressure testing of fusion seams and
vacuum testing of extrusion seams and repairs.
The following sections present a detailed description of each of the above activities.
S:\PROJECTS\1125E CCV CQA\H2 - DESIGN\TRIANGLE\FINAL\TRIANGLE CERTIFICATION REPORT FINAL REVI.DOC 15