The Pumping Division operates the low lift (raw water - pictured at right) and high lift (finished drinking water - pictured below) pumping units. The six low lift pumps, with a rated capacity of 135 million gallons per day, take water from the intake system and pump it to the treatment plant. Eight high lift pumps, with a rated capacity of 147 million gallons per day, pump the finished drinking water to the distribution system. Water plant operators, working rotating shifts on a weekly basis, provide round the clock supervision. The master mechanics maintain and repair the pumping units, hydraulic and electric controls, instruments, electric switchgear, standby gas-powered engines, plant heating system, pipe systems, buildings and grounds.
The division operates and maintains four booster pumping stations with seven pumps, two 4.9 million gallon storage tanks, one 5 million gallon storage tank and one 7.5 million gallon storage tank. All equipment is remotely controlled over leased telephone lines to maintain pressure in the distribution system. The Division also provides pumping to the Northwest Water Commission, and remotely controls an in-line booster station with three booster pumps and control valves at the Northwest Water Commission reservoir located in Des Plaines.
The Pumping Division pumps an average 38 million gallons of water from Lake Michigan each day through three intake pipes and out to customers in Evanston, Skokie, and the Northwest Water Commission.