FACILITY TOURS
FACILITY TOURS
Thursday’ s post-conference facility tour requires a separate registration and fee. Please inquire at registration regarding cost and availability.
THURSDAY, NOVEMBER 13
T1 Green River Filtration Facility— Tacoma Water 8:00 a. m.— Noon
Since 1913, Tacoma’ s primary water supply has been the Green River. The Green River Filtration Facility can treat up to 150 million gallons per day from 231-square-mile protected watershed in the foothills of the Cascade Mountains. Until the Green River Filtration Facility was completed in 2015, the Green River was one of the few major unfiltered surface water supplies left in the U. S.
The filtration facility includes blending, pre-ozonation, and biological filtration. The sedimentation process may be bypassed to allow for direct filtration. The Green River Filtration Facility is a zero-liquid-discharge facility. Solids handling includes screw presses for dewatering.
Visitors should wear closed-toed shoes and dress for outdoor weather. Several facilities are only accessible by stairway.
T2
Point Defiance Zoo & Aquarium 8:00 a. m.— Noon
This tour of the Point Definace Zoo & Aquarium will showcase the facility’ s three water treatment systems( connected to two aquariums and one aquatic animal exhibit), from pumping mechanisms at its Puget Sound inlet, to its eventual outlets at the exhibits. Guided by the facility’ s water treatment specialists, the tour will highlight aspects of maintaining the chemistry and other physical parameters of the water to make it fit for life support. Visitors will also get the chance to tour the rest of the zoo and its exhibits along with the water treatment units!
Requirement to Attend: Waiver must be signed, closed toe shoes and Driver’ s License are also required. www. awwa. org 9