Section 329IAC10-17-6. Geomembrane component of the liner; design requirements

   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.

(Solid Waste Management Division; 329 IAC 10-17-6; filed Mar 14, 1996, 5:00 p.m.: 19 IR 1834)