Category Archives: Gas Well Dewatering

No Bio-Foul in Sump

Close-up view of a groundwater monitoring well installation, featuring a well cap with various pipes, valves, and sensors above ground, including a top-head drive pump. The background includes a grassy landscape, trees, and distant buildings under a clear blue sky.

Pumping the Sump – without the Bio-Fouling

When bio-growth on a competitor’s airlift pump rendered it unusable in a landfill sump at a remarkably clean, state-of-the-art facility in the Northeast, the nationally recognized landfill installed the popular Edge Pneumatic Piston Pump™ from Blackhawk.

Bio-fouling is unacceptable to the ISO-awarded managers of the privately owned 720-acre site, which receives an average 4,750 tons of solid waste a day and is proud of its environmental management system.

Pumping the Sump – without the Bio-Fouling When bio-growth on a competitor’s airlift pump rendered it unusable in a landfill sump at a remarkably clean, state-of-the-art facility.

Solar Pumps Go Horizontal to Dewater Canyon Wells

A solar panel is mounted on a metallic frame on a dirt hill. Nearby, a large, green pipe partially buried in the ground is connected to a top-head drive pump in a metal box. A smaller metal cage-like structure on the ground houses electrical equipment.

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.

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.