2003-07-11_REVISION - M1980244

• Permit No: M1980244
• IBM Index Class Name: Revision
• Doc Date: 7/11/2003
• Doc Name: Phase IV PSSA Area Cert Report
• From: DMG
• To: Cripple Creek & Victor Gold
• Type & Sequence: AM8
• Media Type: D
• Archive: No

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June 24, 2003 -41-
6.1.4 Defect and Repair Observations
003-2203.7
Golder inspected geomembrane panels for damage that may have occurred during manufacture,
transport, deployment, or installation as discussed in Section 6.1. Any damage noted {during or afrer
deployment) by Golder was reported to Poly-Flex and repaired. Golder repeatedly observed all
panels and seams for defects until Ames covered the geomembrane with either LVSCF or DCF.
Golder documented defects by assigning a unique defect identification code to each defect, and
marking each defect code on the geomembrane. The summaries of defects, repairs, and
non-destructive testing of repairs, including the approximate locations of each repair are presented in
Appendix IC-5 and L-5 for the lower and upper geomembrane layers, respectively.
6.1.5 Destructive Testine
Golder selected destructive test locations based on Poly-Flex's completion of approximately
69,619 lineal feet of welding for the lower geomembrane, 59,916 lineal feet of welding for the upper
geomembrane, various working conditions, and on seaming observations (e.g., suspicion of a
defective weld). Poly-Flex obtained and tested 163 fusion seam destructive samples and 30 extrusion
seam destructive samples during the installation of the lower geomembrane, and Poly-Flex obtained
and tested 129 fusion seam destructive samples and 9 extrusion seam destructive samples during the
installation of the upper geomembrane in the Phase IVb PSSA.
Poly-Flex constructed approximately 64,606 lineal feet of fusion welded seams and 5,013 lineal feet
of extrusion welded seams on the lower PSSA geomembrane, and approximately 59,720 lineal feet of
fusion welded seams and 196 lineal feet of extrusion welded seams for the upper PSSA
geomembrane. The specified frequency of destructive testing was one test per 500 lineal feet of weld.
Golder identified and Poly-Flex obtained destructive samples from the lower PSSA geomembrane
panel seams at a frequency of one destructive test sample per 396 lineal feet of fusion welded seams,
and one per 167 lineal feet of extrusion welded seams. Golder identified and Poly-Flex obtained
destructive samples from the upper PSSA geomembrane panel seams at a frequency of one
destructive test sample per 462 lineal feet of fusion welded seams, and one per 22 lineal feet of
extrusion welded seams. The test frequencies exceeded project requirements.
1:\00@203\OC00\FnICertP55A0603\00}ZIp3.Od00.0~343RePdoc Golder Associates