DRILLING OF WELL 13R

PROJECT UPDATE (MARCH 25, 2005)

The Well 13R project consists of drilling, construction, installation, development, and testing of one well 1,100-feet in depth by direct mud rotary and rotary reverse circulation method. Well 13R will be a drinking water production well located next to the District’s existing Well 13 in Township 25 North, Range 6 East, in the SW1/4 of the NW1/4 of Section 12, King County, Washington.

Schneider Equipment Inc. has drilled a 17.5-inch diameter hole to a depth of 813-feet below the ground surface (bgs). They have installed and placed a 12-inch casing to a depth of 791-feet (bgs). The well driller is now in the process of sealing the area between the 17.5-inch hole and the 12-inch casing. Once this is complete the well driller will drill a 12-inch diameter hole from the top of the aquifer (approx. 813-ft bgs) through the bottom of the aquifer (approx. 1100-ft bgs), using the reverse circulation drilling method. The drilling process should be complete by the second week of April 2005. After the drilling is completed a survey of the hole will be conducted, the well screens will be manufactured and installed, and test pumping of the well will be performed.

Project Schedule (updated 3/25/05)

Complete design	January 2005
Advertise for bids	January 21, 2005
Receive bids	February 3, 2005
Begin construction (tentative date)	March 2005
Complete construction (tentative date)	June 2005
Project Work Hours	7AM to 10PM Weekdays 9AM to 6PM Weekends

For more information on the project or if you have any questions, please contact the District’s Project Manager, Kyle Wong, or the District’s Engineering Manager, Lisa Tobin, at (425) 392-6256 [kyle@sammplat.wa.org or lisa@sammplat.wa.org].