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<br />geomembrane resulting from obtaining destructive samples. The size of destructive samples shall <br />be: <br />- 12 inches wide by 30 inches long with the seam centered lengthwise; or <br />- 12 inches wide by 42 inches long with the seam centered lengthwise, if the Contractor <br />desires a sample. <br />' The Contractor shall cut the sample into two or three l4-inch long pieces and provide one piece <br />' of sample to Owner for archiving, one piece to the Quality Assurance Engineer for testing, and <br />retain one piece, if required. The Quality Assurance Engineer will choose the piece of sample <br />for the Contractor. In the event of a failure of the destructive test sample, the Contractor shall: <br />- Retrace the welding path a minimum of 10 feet in both directions ftom failed test <br />locations and remove, at these locations, a sample 12 inches wide by 14 inches; <br />- Give the samples to the Quality Assurance Engineer for field testing; <br />- Repeat the process if additional tests fail; <br />- Reconstruct the seam between passing test locations to the satisfaction of the Quality <br />Assurance Engineer; <br />' - Reconstruction may be by one of the following methods; <br />- Cut out the old seam, reposition the panel and reseam; or <br />- Add a cap strip. <br />' - Cut additional destructive samples from the reconstructed seam at the discretion of the <br />Quality Assurance Engineer. <br />' 4.2.12.4 Oualit~Controllns~ction <br />The Contractor shall inspect the seams and surfaces of geomembrane for defects, holes, blisters, <br />undispersed raw materials, or signs of contamination by foreign matter. The Contractor shall <br />brush, blow, or wash geomembrane surfaces if debris inhibits inspection. The Cohtractor shall <br />' distinctively mark repair areas and indicate the required type of repair. <br />='2- <br /> <br />