In May, staff in the Portland Water Bureau’s Operations Group utilized a new pumping system to help clean the Powell Butte Reservoir 1.
Left: Operating engineers connect pump discharge hoses to the drain pipe.
Right: An operating engineer trainee operates the discharge sluice gate.
The new system is composed of a large towable generator, electric submersible pump, above ground hoses, and sprinkler system. The generator powers a pump which is placed directly into the reservoir drain vault. The pump is attached to above ground hoses.
A Water Bureau electrician works on the Pump control panel.
The hoses are used to disperse the dechlorinated water onto newly established native grasses and shrubs planted around the Powell Butte Nature Park site.
Sprinkler for Flygt pump.
Although the bureau has a permit to discharge dechlorinated water into Johnson Creek, this system provides an environmentally friendly alternative.