329 IAC 10-17-6 Geomembrane component of the liner; design requirements

Sec. 6. The geomembrane components of the liner systems described in section 2 of this rule must: (1) consist of a minimum thickness of thirty (30) mils if the geomembrane is a flexible membrane liner, or a minimum thickness of sixty (60) mils if the geomembrane is high density polyethylene (HDPE); (2) be placed above and in direct contact with the soil liner, which has a slope of not less than two percent (2%) toward the leachate collection pipes; (3) have the minimum number of field seams necessary in corners and irregularly shaped locations; (4) have horizontal seams placed no closer to the toe of the slope on the inside of the cell than the distance specified in the approved construction plans; and (5) meet any additional design specifications necessary to obtain an adequate geomembrane liner as specified in the approved construction plan or as determined by the commissioner.