SOUTH DAKOTA Department of
Environment & Natural Resources

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Surface Water

Lift Station Calibration

In order to properly monitor flow of wastewater to the collection system, the pumping rates of the lift station should be established. The pumping rate can be determined, by first measuring the drop in water in the wet well (over a one minute pumping period), then by calculating the volume of water pumped to the ponds. The gallon per minute pumping rate combined with hour meter readings, will give the total volume of wastewater pumped over a given period of time. By compiling records of weekly or monthly flows and comparing them to one another, inflow/infiltration into the sewer system may be detected and any problem corrected before a major breakdown occurs. Further, by checking the pumping rates three (3) or four (4) times per year, pump or motor problems may be detected before a complete failure occurs.

 

Lift Station Pump Calibration Procedure and Example

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