WATER SUPPLY ANALYSIS Fire Hydrant Data from Hydrant #G-

Static Pressure: 69 psi or 4.85 kgf/cm2

Residual Pressure: 60 psi or 4.22 kgf/cm2

Available Flow: 890 gpm or 3,396 L/sec

This fire hydrant test was performed by the Yokosuka Fire Department with the US Navy Authority Having Jurisdiction and Fire Protection Engineer on July 17, 2003. The underground fire main is a 6-inch pipe.

81 Figure 29: Location of Fire Hydrant and Connection Point to Facility

The fire hydrant G28 is located to the south-east of the subject facility. The point of connection to the facility is Room 128 mechanical room. Please see Figure 29 above. SUMMARY OF OCCUPANCY CLASSIFICATIONS

Although there are many different functions within the NA893 Community Support Facility, the occupancy classification can be divided into two general categories. The 4-story, reinforced concrete building generally houses the Light Hazard Occupancy functions such as the classrooms and offices on the second through fourth floor with some Ordinary Hazard 1 storage spaces. The first floor is generally considered the Ordinary Hazard Group 2 Occupancy such as the library book stack area, periodical rooms, reading rooms, and circulation desks.

The following, Table 16, is a brief summary of occupancy classifications for the different functions in the subject facility:

83 Table 16: Occupancy Classification per Room for NA893 Community Support Facility

Table 16: Occupancy Classification per Room for NA893 Community Support Facility (Continued)

85 Table 16: Occupancy Classification per Room for NA893 Community Support Facility

Table 16: Occupancy Classification per Room for NA893 Community Support Facility (Continued)

87 Table 16: Occupancy Classification per Room for NA893 Community Support Facility

(Continued)

Notes:

1. The stack height is less than 8 feet per UFC 3-600-01, Appendix B-1.2 and NFPA 13 para. 5.3.1. Ordinary hazard (Group 1) occupancies shall be defined as

occupancies or portions of other occupancies where combustibility is low, quantity of combustibles is moderate, stockpiles of combustibles do not exceed 8 ft (2.4 m), and fires with moderate rates of heat release are expected.

2. The stack height is less than 12 feet per UFC 3-600-01, Appendix B-1.3 and NFPA 13 para. 5.3.2. occupancies or portions of other occupancies where the quantity and combustibility of contents are moderate to high, stockpiles of contents with moderate rates of heat release do not exceed 12 ft (3.7 m), and stockpiles of contents with high rates of heat release do not exceed 8 ft (2.4 m). 3. UFC 3-600-01, Appendix B-1.1 (Data Processing Area) and NFPA 13 para.

A.5.2. Light hazard occupancies include occupancies having uses and conditions similar to the following:

(1) Animal shelters (2) Churches (3) Clubs

(4) Eaves and overhangs, if of combustible construction withno combustibles beneath

(5) Educational

(6) Hospitals, including animal hospitals and veterinary facilities (7) Institutional

(8) Kennels

(9) Libraries, except large stack rooms (10) Museums

(11) Nursing or convalescent homes (12) Offices, including data processing (13) Residential

(14) Restaurant seating areas

(15) Theaters and auditoriums, excluding stages and prosceniums (16) Unused attics

Note that it is not the committee’s intent to automatically equate library bookshelves with ordinary hazard occupancies or with library stacks. Typical

library bookshelves of approximately 8 ft (2.4 m) in height, containing books stored vertically on end, held in place in close association with each other, with aisles wider than 30 in. (750 mm) can be considered to be light hazard

occupancies. Similarly, library stack areas, which are more akin to shelf storage or record storage, as defined in NFPA 232, should be considered to be ordinary hazard occupancies.

4. UFC 3-600-01, Appendix B-1.3. DoD occupancies, that might be classified as extra hazard, are often addressed by unique occupancy specific criteria/guidance rather than being addressed generically as extra hazard.

There will be three design fires considered in this project. The design fire are all on the first floor since all the Ordinary Hazard II classifications are located in the main library. The three design fires considered for this analysis would be a fire in the main library book stacks, the periodical room, and the media rooms. The following are descriptions of the rooms and their specific occupancy classifications.

• Room 118B Book Stack Area: Area where library books and materials are stacked. Area shall be provided with standard, vertical adjustable shelving. According to 2016 NFPA 13, the meeting room is classified as an Ordinary hazard (Group 2) as per A.5.3.2. (12) Libraries — large stack room areas.

• Room 116 Periodical/Compact Storage: Room where back issues of periodicals and miscellaneous items are stored. Room shall be provided with storage shelving units. According to 2016 NFPA 13, the meeting room is classified as an

Ordinary hazard (Group 2) as per A.5.3.2. (12) Libraries — large stack room areas.

• Room 111 Media Room: Private cubicles for Audio & Video viewing/listening. Cubicles shall be provided with TV, video & audio player, acoustical treatment and view window on doors. According to 2016 NFPA 13, the meeting room is classified an Ordinary hazard (Group 2) as per A.5.3.2. (20) Post offices. SYSTEM REQUIREMENTS

The main library portion of the facility which includes the library, periodical room, and media rooms are classified as an Ordinary hazard (Group 2). The majority of the second through fourth floor which include the education center and clinics are

considered to be a light hazard. The sprinkler design demand and minimum K-factor will be dictated by the 2006 UFC 3-600-01 in this case.

89 Table 17: Sprinkler and Water Supply Design Requirements per UFC 3-600-01

When compared to the 2016 NFPA 13 for Ordinary hazard (Group 2), the

requirements of the UFC 3-600-01 is more stringent. For Ordinary hazard (Group 2), the design density is 0.20 gpm per square feet and the design area is 3000 square feet. The duration of the supply is 90 minutes.

Using Figure 11.2.3.1.1 Density/Area Curves, the required sprinkler density and area are as follows:

Room 118B Book Stack Area: Ordinary Hazard Group 2

Sprinkler Density: 0.20 gpm/ft2

Design Area: 528.9 SM or 5693 ft2

Room 116 Periodical/Compact Storage: Ordinary Hazard Group 2

Sprinkler Density: 0.20 gpm/ ft2

Design Area: 38.4 SM or 413.3ft2

Room 111 Media Room: Ordinary Hazard Group 2

Sprinkler Density: 0.20 gpm/ ft2

Design Area: 61 SM or 656.6 ft2

91 Using Table 4-1 of the UFC 3-600-01, Table 4-1 Sprinkler System and Water Supply Design Requirements for Sprinklered Facilities, the hose stream allowances are as follows:

Room 118B Book Stack Area: Ordinary Hazard Group 2

Hose Stream Allowance: 1900 lpm (500 gpm) Min Design Density: 8.2 lpm/sm (0.20 gpm/ft2_{) Min}

Design Area: 3000 SF (280 SM) Max Protection Area: 130 SF (12.1 SM) Max

Duration: 90 Minutes

Room 116 Periodical/Compact Storage: Ordinary Hazard Group 2

Hose Stream Allowance: 1900 lpm (500 gpm) Min Design Density: 8.2 lpm/sm (0.20 gpm/ ft2_{) Min}

Design Area: 3000 SF (280 SM) Max Protection Area: 130 SF (12.1 SM) Max

Duration: 90 Minutes

Room 111 Media Room: Ordinary Hazard Group 2

Hose Stream Allowance: 1900 lpm (500 gpm) Min Design Density: 8.2 lpm/sm (0.20 gpm/ ft2_{) Min}

Design Area: 3000 SF (280 SM) Max Protection Area: 130 SF (12.1 SM) Max

Duration: 90 Minutes

It should be noted that the UFC 3-600-01, Table 4-1 Sprinkler System and Water Supply Design Requirements for Sprinklered Facilities is more stringent than 11.2.3.1.2 Hose Stream Allowance and Water Supply Duration Requirements for Hydraulically Calculated Systems.

Figure 31: Sprinkler Coverage Requirement as per UFC 3-600-01

It should be noted that the sprinkler coverage is also defined in the UFC 3-600-01 in paragraph 4-2.3.6, Figure 31 above.

In a commercial facility, quick response sprinklers are assumed to be used in this situation. Using Figure 11.2.3.2.3.1 Design Area Reduction for Quick-Response

Sprinklers, the design area has been reduced as follows: Ordinary Hazard Group 2

Ceiling Height: 4.3 m Original Design Area: 1500 ft2

Area Reduction: 36% Revised Design Area: 960 ft2

93 Figure 32: Design Area Reduction for Sprinklers as per NFPA101

Unfortunately, design area reduction is not allowed in the case of a DoD facility as per the below UFC 3-600-01 regulation: