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Vt6a-e°' COLUMBIA FIRE, INC. <br /> 111 SOUTH FINDLAY STREET <br /> SEATTLE,WA 98108 <br /> HYDRAULIC CALCULATIONS <br /> 1 FOR <br /> Group Health - Pipe Replacement <br /> 2930 Maple Street <br /> Everett, WA 98201 iubjuCt To Fle1d Inspection <br /> DATE: JUN 18, 2015 Sy The Fire Marshal <br /> -DESIGN DATA- <br />' OCCUPANCY CLASSIFICATION: Ordinary Hazard Group 1 <br /> DENSITY: . 15 gpm/sq. ft . <br /> AREA OF APPLICATION: 1, 950 sq. ft . <br /> COVERAGE PER SPRINKLER: 130 sq. ft . MAX <br /> NUMBER OF SPRINKLERS CALCULATED: 20 sprinklers <br /> TOTAL SPRINKLER WATER FLOW REQUIRED: 455 . 7 gpm <br /> TOTAL WATER REQUIRED (including hose) : 705 . 8 gpm <br /> FLOW AND PRESSURE (@ BOR) : 455 . 7 gpm @ 78 .4 psi <br /> SPRINKLER ORIFICE SIZE: 1/2 inch <br /> NAME OF CONTRACTOR: Columbia Fire Inc . <br /> DESIGN/LAYOUT BY: JEK <br /> AUTHORITY HAVING JURISDICTION: City of Everett <br /> CONTRACTOR CERTIFICATION NUMBER: COLUMFI952MG <br /> CALCULATIONS BY HASS COMPUTER PROGRAM (LICENSE # 27121906 <br /> HRS SYSTEMS, INC. <br /> WASHINGTON STATE <br /> CERTIFICATE OF COMPETENCY <br /> FIRE PROTECTION SPRINKLER SYSTEMS <br /> Steve Adamson <br /> 4265-0691-C Level3� <br /> Columbia Fire, Inc. <br /> COLUMF19 //��/r',v'/� / /(',/ <br /> �r v ry/ Exptrss <br /> Signature, alts 12';1,15 j <br />