9 Hawk Pumphouse Work

Turf Care staff  (Steve Lockhart & Ben Spencer) have been modifying the piping configuration in pump house # 4 near 9 Hawk in order to improve the management of the irrigation ponds underdrain system. Throughout the season the liner in 9 Hawk pond comes to the surface due to water pressure caused by high ground water. Fortunately there was an underdrain system designed into the base of the pond to deal with this situation. The only way to keep the liner down is to pump it out which during the golf season interferes with the irrigation system. Prior to this project the irrigation system and the underdrain could not operate at the same time. The issue with the setup in the pumphouse was that there was no way to separate the underdrain water (below the liner) from the effluent water (above the liner), as both sources feed into the same well  in the pumphouse. It is important that the two types of water are separated because environmental regulations only allow effluent water to be pumped off the property once a year. To separate both the effluent and fresh water sources,  a 4" pipe attached to the underdrain system at the bottom of the well was installed. This pipe acts as a well within the well of the effluent water. The pump installed within this new pipe will now be able to pump out the underdrain water, which will prevent the liner in the pond from surfacing and will also now provide the flexibility to operate both the irrigation system and the underdrain system at the same time.

Underdrain source now connected to a separate pipe inside the well (right).
Effluent water source (left).

The pipe for the underdrain being lowered into the well.

A view from the top of the well with the new pipe installed.