Laserfiche WebLink
A B A C U S <br />CONSULTANTS, P.S. <br />Mecnrnui.Rtectfui Engime,ing <br />10.401 Second <br />Avenue South <br />Suite Two Hundred One <br />Seattle, WA 98104 <br />2 0 6 - 5 8 3 0200 <br />206-583-8826 FAX <br />►PRINCIPALS <br />„1 <br />Richard A. Edmonds, PE. <br />Mark E. Kinzer, P.E. <br />Jens Kieler, PA <br />Richard D. Moeller, P.E. <br />Michael A. Oulriconi, P.E. <br />Ronald F Ouist, P.E <br />Mark D. Robison, PA <br />Gene A. Schneebeck. P.E. <br />Terence R. Staten, P.E. <br />Arthur L. Vertner, AIA <br />(-*N <br />27 September 1993 <br />Mr. Dan Mathias <br />Engineer <br />City of Everett Public Works Department <br />3200 Ceder Street <br />Everett, WA 98201 <br />PROJECT: COLBY SQUARE <br />Abacus Project No. 2491-001 <br />SUBJECT: FIRE SPRINKLER/STANDPIPE SYSTEM <br />Dear Dan: <br />The purpose of this letter is to review our conversation(s) of 10/26/93 <br />regarding results of water flow analyses you performed (10/21/93). <br />Per our conversation(s) it is my understanding that: <br />Item 1: The results of Analyses 1 included a base assumption <br />that the sectional valve located between the Everett Ave. <br />and Colby Ave. water mains was in the closed position. <br />Item 2: The results of Analyses 2 included no closure of an%, <br />system valves. Analyses 2 was an exercise in imposing <br />loads throughout the city to model several main piping <br />breaks. <br />Item 3: A third analyses was performed (1 /26/93). This analyses <br />modeled a break in Colby Ave. (at the project site) with <br />no closure of the above mentioned sectional valve. The <br />resulting pressure in the Everett Ave. water main was 8 <br />PSI (approx.) <br />