2014-02-07_REPORT - M1980244 ‎(8)‎

• Permit No: M1980244
• IBM Index Class Name: Report
• Doc Date: 2/7/2014
• Doc Name: Final Report QA Monitoring and testing volume 2 of 2 document 1 of 3Mill Site Earth works
• From: CC&V
• To: DRMS
• Email Name: TC1
• Media Type: D
• Archive: No

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F. Failing tests shall be subjected to additional testing until a passing area is found. A passing area is
defined as a seam(s) bounded at each end by a passing destructive test. Seams will be tracked in
each direction until a passing destructive test is found or until a previous passing destructive test is
reached. Seams will be tracked according to the welding apparatus and the machine operator.
The following procedures shall apply whenever a sample fails the field destructive test:
1. CONTRACTOR can retrace the welding path to an intermediate location(at a minimum
of ten (10) feet from the location of the failed test in both directions), at CERTIFYING
ENGINEER discretion, and take a small sample for an additional field test. If this test
passes,then the seam shall be capped between the two passing locations. If the test fails,
in either direction,the tracking process shall continue until a passing area is found.
2. Over the length of seam failure, CONTRACTOR shall either cut out the old seam,
reposition the panel and reseam, or cap the failing area, as required by CERTIFYING
ENGINEER.
3. If the area is reseamed, additional destructive field test(s) shall be taken within the
reseamed area. The reseamed sample shall be found acceptable if test results are
approved by CERTIFYING ENGINEER. If test results are not acceptable,this process
shall be repeated until the reseamed length is judged satisfactory by MANAGER and
CERTIFYING ENGINEER.
4. Samples taken as the result of failed tests do not count toward the total number of
destructive tests required.
G. CONTRACTOR shall document all actions taken in conjunction with destructive test failures,
with CERTIFYING ENGINEER providing Quality Assurance documentation.
H. Failing seam lengths which were capped shall be non-destructively tested as described in Section
3.08.
3.10 DEFECTS AND REPAIRS
A. All seams and non-seam areas of the geomembrane shall be observed by CQA Monitor for
defects, holes, blisters, undispersed raw materials, and any sign of contamination by foreign
matter. The surface of the geomembrane shall be clean at the time of observation. The
geomembrane surface shall be brushed, blown, or washed by CONTRACTOR if the amount of
dust or mud inhibits inspection. MANAGER and CERTIFYING ENGINEER shall determine
if cleaning of the geomembrane is needed to facilitate observation at no additional cost to CC&V.
B. Each suspect location in seam and non-seam areas shall be non-destructively tested as determined
appropriate by CQA Monitor, in the presence of CQA Monitor. Each location that fails the non-
destructive testing shall be marked by CONTRACTOR,and repaired accordingly.
C. Repair Procedures
1. Defective seams shall be reconstructed as described in these SPECIFICATIONS.
2. Small holes shall be repaired by abrading the sheet surface and welding an extrusion
bead. If the hole is larger than one-quarter(1/4)inch in diameter it shall be patched.
Section 02776 Page 20 of 22 May 9,2012
Geomembrane Revision 1