2310 36TH ST GASCOIGNE LUMBER 2019-08-08

er.t' E D Fire Sjn*znlier 11021 Cramer Road KFIsi,Gig Harbor,.Washington 98329 PH(253)857-2056—Fax(253)857-2312 April 9,2019 Gascoigne Lumber 2310 36*St. Everett,WA 98201 Attention: Tom Davis Reference: Rack Storage Analysis for Existing Facility On April 4th Emerald Fire visited the Gascoine lumber facility in Everett _ and surveyed the existing fire'ex system in the onsite warehouse.Emerald Fire also obtained the existing Fire sprinkler drawings for the facility from Tom Davis through the city of Everett Tom Davis also provided a copy of the proposed rack storage.swings. and cracking specifications. The purpose of this visit was to analyze the suitability of the sprinkler system in the existing warehouse as it relates to the desired rack storage. EXISTING SPRINKLER SYSTEM SURVEY The location for the new rack storage is a fully sprinldered existing warehouse located at 2310 36th St Everett WA.The existing system consists of 8"D.I.underground piping and a 8"backflow in an exterior vault.The stn riser is 6"and includes a 6"Gem alarm valve.The system reduces to 4"near the top of the riser.The existing system is gridded with 4"live and dead mains and 1 %"grid tracts running between them,The existing breach lines are spaced at 10'with an existing head spacing of 10'.The existing spacing of the sl rinklers is 100 sq.ft.The existing sprinkler heads are 286 deg.,brass,bulb type slrtinklers menu actsu�ed by Viking in 1986.The existing springs have an orifice size of 17132"and a 314"thread size.The existing sprinklers have a IC factor of S.Q. The existing gauge showed a static pressure of 92 psi.The existing riser pressure gauge showed 140 PSI ofpressure.The existing system is calculated to provide.345 GPM over the most demanding 2500 sq. ft.The site conditions above were witnessed during the survey and confirmed by the existing sprinkler drawings provided by the city of Everett