11625 AIRPORT RD BASE FILE 2018-01-01 MF Import

i � ENG/NEER/NG/ PUBL/C SERf�/CE5 OEPARTAlENT I, November 5, 2007 � I Mr. Doug Bueller � American Sprinkler Corporation k O 1 l � �OG 9 2311 153rd Ave SE Snohomish, W.+ 98290 Projecr. Sonrise Chapel Spnnkler Pemiit Job Address: 11625 Airport Road Plan Review No: K0710-009 Dear Mr. Bueller, � In response to your application for sprinkler permit,a pemit has been issued with the following condition: a meeting will be required after the existing buried backflow device has been uncovered by the City of Everett Water Department and observed by Bill Bruce, our Cross Connection Specialist. The City will determine what upgrade is required to the existing single check system that was installed under the directiun of Alderwood Water Dis[rict,prior to the a�nexation of this property by the City of Everett. At minimum,our Utilities Department will require a Washington State approved double chcck valve assembly retrofitted on the existing building. Based on the outcome of the meeting,a Washington State approved deuble check detector assembly may be required to be installed inside the building,per City of L verett Standard Drawing Nwnber 523,or outside the building in a vault,per City of Everett Standard Drawing Number 515 All single check detectors are now out of complianee with the requirements of the Washington State Departrnent of Hcalth. The attendees at the meeting should include all those copied on this letter,and can be arranged by calling me to schedule the meeting. Before the meeting,Bill Bruce,who is our Cross Connection Specialist, should have an opportunity to observe the unexrthed device with an owner's representative at the site. Bill can be reached at 425-257-8833. For your reference, we have attached the minimum City of Everett Public Works installation requirements for either a double check valve assembly(DCVA)or a double check detector assembly(DCDA). I. The doublc-check datector valve assembly(DCDA), if required by the City of Everett, and the fire riser access should be revised on the permit drawings of the building and resubmitted fc�r Ciry of Everett plan review. The following standards have been attached to this letter for clantication of the requirements: City of Everett Standard 52= for an interior location of the DCDA requiring door access directly te the outside of the building, or a ��ault location for the DC'DA. The DCDA should be]ocated no further[han 70 feet from the water main. 2. Per the Washington Administrative Code 246-290<190, the Ciry of Everett requires calculations for the ` new DCDA on the sprinkler system to determine that there are no negative impacts on sprinkler performance. The suppression sys[em should also meet hyd:auiic requirements ofNFPA-13. CITY OF EVERETT • `s200 Cedar Street • Everett, WA 98201 • (425) 257-8800 • Fax (425) 257-8856 —� c'�Heky�'h'mQ�KO]IO-Wa 11615 Airppn Maddu �