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Table 2-1 Fire Suppression Systems and Coverage
System
System A (riser located in basement)
I Coverage
F
I hsement
E3uilding 991 Waste Storage keas
Supply to the East Dock and Building 989 dry pipe
I
System B (riser located in Room 170 - West Dock)
Building 985 riser
- Y
Uu hose valves in these arm
Supply to the West Dock and Canopy area
Building 985
EIuilding 985 filter plenum deluge system
All hose valves in Building 985.
There are two accessible fire hydrants located within 75 feet of Building 991 of the
Building 991 Complex and one located within 75 feet of Building 985. See Figure 2-10 for the
Building 991 Complex for the fire protection water loop with hydrant locations. These hydrants
are identified as Hydrants 9-3, 9-4 and 9-5. Hydrant 9-3 is located directly west of Building 985
on the west side of the north-south running road and provides access to pump into the sprinkler
system and standpipe Fire Department connections located on the south side of Building 985.
Hydrant94 is positioned near the southwest corner of Building991 and provides access to
pump into the sprinkler system and standpipe Fire Department connections located on the west
side of the building and also provides access to Building 992 and Building 984. Buildings 996,
997 and 999 could also be supported by this hydrant or they could be accessed from within
Building 99 1. Hydrant 9-5 is located near the southeast comer of Building 991 and is in a useful
position for interior attack of the Building 991 oflice areas, mechanical rooms, basement, and
waste storage areas in Rooms 134 and 166, and Buildings 989 and 984. These fre hydrants
provide adequate coverage of the complex.
2.3.1.2 Automatic Sprinkler System
Portions of Buildiog 991, Building 998, and the basement level are protected by an
overhead automatic wet-pipe sprinkler system, designated as System A. Building 985 is also
protected by an overhead automatic wet-pipe sprinkler system. The wet-pipe sprinkler systems
were installed to an Ordinary Hazard pipe schedule per NFPA 13. The “Ordinary Hazard”
classification requires a minimum residual pressure of 20pounds per square inch (psi) plus
elevation to the highest sprinkler (approximately :27 psi for Building 991) and a required flow
rate at the base of the riser of 850 to 1500 gallons per minute (gpm). Per the FHA (Ref. 24), the
available pressure and flow rates for the sprinkler systems in Building 991 exceed the required
minimum for pipe schedule systems: (1) for Ordinary Hazard Group 1 occupancy under the
1989 edition of NFPA 13, and (2) for Ordinary Hazard occupancy under the 1994 edition of
NFPA 13.
Building 99 1 Complex FSAR