Officials with Alex S. Palmer & Co. are targeting another approximately 21 days for water drainage efforts at the company’s West End Summit site near the Broadway and West End Avenue split.

About 60 percent of the water has been drained from the massive hole, according to Michael Large, Palmer & Co. vice president of construction services. The effort started on Sept. 28.

“There was a de-watering pit when excavation was going on [in 2007] and that will be maintained,” Large said, adding the site is scheduled to have a 150-gallon pump and a 100-gallon pump.

“This is typical for building with a subterranean parking garage,” Large added.

Division 2 Constructors is the general contractor for the project, while Wilder Motor and Equipment Co. is the subcontractor. Both are Nashville based.

Officials had calculated about 1.9 million cubic feet of water had been in the hole originally, Large said.

Palmer & Co. must re-submit design plans to secure new permits for West End Summit, a twin-tower development to be anchored by HCA Holdings units Parallon Business Solutions and the Sarah Cannon Research Institute. The original permits had expired.

The company is still targeting early 2013 for full-scale on-site construction. (Read more here.)