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Forward Inc. 23 April 1982 <br /> [This would provide additional protection against clay liner <br /> degradation and reactivity problems addressed in specifications <br /> I.E.9. , II .D. , and III.B.] <br /> 11. ITue vapor pressure of volatile constituents shall not exceed 70 <br /> millimeters of mercury at 25% (770) . <br /> [Gas evolution can impair the integrity of liners and caps. The <br /> 70 mm Hg figure is taken from the draft operations plan submitted <br /> by Forward, Inc. (Beta Associates) ® ] <br /> 12. Flash point shall be greater than 2007 (93.4%) . <br /> [2007 is the upper flash point of combustable materials as <br /> defined by the US Department of Transportation, Flammable rnater- <br /> ials have flash points under 100°F. The US EPA has banned the <br /> landfilling of ignitable wastes ( includes low flash point liquids <br /> and certain reactive solid wastes) . This specification is in- <br /> tended to prevent fires which could impair the integrity of waste <br /> containment facilities.] <br /> 13. Moisture by volum®e shall not exceed 24% in place in the landfill <br /> unless evidence is presented to show that a higher moisture <br /> content will not result in leachate formation . <br /> [The purpose of this specification is the prevention of leachate <br /> production in a waste cell . In the absence of leachate, no <br /> hydraulic head exists to cause hazo4ous constituent migration <br /> through liner materials . We require impermeable liners and <br /> leachate collection systems with the intention that they serve as <br /> safeguards to possible problems , and not that they serve as <br /> encouragement for leachate generation . if moisture control , <br /> absorption capacity of the waste, and prevention of leachate <br />