Pad 5 & 7
Pad 5 and Pad 7 were constructed in 2007. Pad 5 opened in July 2008 and Pad 7 was opened in October 2014.
It cost $330,000 per acre just to build these sites. Pad 5 and Pad 7 have a combined life expectancy of 15 years. Both of these pads were constructed of 6 layers:
- 1/4 inch Claymax (Bentonite Clay inside 2 fabrics)
- 60 mil high density Polyethylene liner (may be either smooth or textured depending on how resistant to slipping the design required, and resistant to tears, chemicals, and punctures)
- 1 layer of Geocomposite Net-Drainage netting (netting with fabric on the top and bottom)
- 60 mil high density Polyethylene liner
- 16 ounce Geotextile fabric (non-woven)
- 18 inches of 1/2 inch stone containing a network of leachate collection pipes