REP46523 - Laserfiche WebLink

Home Browse Search

• October 2000 3.2.5 Liner/Design Components -38- 003-2191 3.2.5(A) Set forth in this application in Appendices ] A, 1B, and 6 is the demonstration that the design developed for the facility will comply with Section 2.1.15 at the relevant point of compliance. The relative point of compliance is the monitoring wells on the comers of the site and the monitoring wells along the east and west of the property. The applicant has identified the first sand bearing water beneath the lowest level of the fill. This generalized section has been shown on Figure 14. The mazker sand has been correlated across the site and indicated in the geologic cross-sections. Below the marker sand is a series of clays and shale members that are approximately 40 feet thick and lies above the sand member having water and being the relative point of compliance. While it is believed that the composite of the clay/shale members above the relative point of compliance will have a hydraulic conductivity of less than 10"' cm/sec, the operator is proposing a 3 foot clay liner, with a GCL liner system as a back-up if needed. The • Operator has incorporated the following factors into the design of the barrier layer for the site: (1) BametLayerPermeability The permeability of the barrier layer will be mechanically developed to meet the required ] 0'' cm/sec hydraulic conductivity. If needed, a demonstration will be made showing that a GCL is appropriate for the site. There are a number of clays on site that aze well suited to be liner material. Since clay is mined on the site for commercial production of brick, the clay material will be ideal for re-compaction in clay liners. The operator has demonstrated that the clay from the site will meet the permeability specificationsperrhe moisture/densityrelationshipsof tested material in Appendix 14. • V00.2191RI915MalisPmniil0o0doc Sedalia Recycling Center and Depository