Storage allows KUB to more quickly and surely meet regulatory deadlines to eliminate sewer overflows. And it helps relieve stress on treatment plants during heavy rains.
KUB has four operating wet weather wastewater storage tanks on its system. The tanks provide a total of more than 20 million gallons of storage capacity to help prevent overflows.
When a trunk sewer associated with a tank reaches capacity, the facility automatically diverts wastewater from the pipe. The facility stores the wastewater until the flow in the pipe decreases. Then it releases the wastewater back into the system at a controlled rate.
The storage facilities include a diversion structure located in-line with the trunk sewer, a pumping station, a grinder well upstream of the pumps, a storage tank, an odor control facility, and all associated piping, etc.
KUB anticipates that any tank will be used about 15 times a year, depending on rainfall in its area, for a few days at a time.
Walker Springs Tank