A West Cast landfill called on Blackhawk's Apollo Solar Piston Pumps™ to dewater remote-site trenches and methane wells in canyons no longer served by electric or pneumatic power.
The closed Class D site includes 6-inch vertical wells to depths of 100 feet with a 1¼-inch gas discharge. More challenging has been dewatering near-horizontal side-slope trenches in the canyons. Some customizing and experimenting with Apollos have been most effective.
In July 2012, the landfill purchased three Apollo units with variable solar charge controls and 180- watt solar panels for dewatering three canyon gas wells. The Apollos successfully dewatered all three wells while running only during daylight hours at roughly 1 gallon per minute.