EOC ITOC 100 CD Narrative.pdf

U.S. DEPARTMENT OF

HOMELAND SECURITY

National Capital Region

DHS Operations Center (DOC A) EOC/ITOC Renovation

100% CONSTRUCTION DOCUMENTS NARRATIVE,

VOLUME 1

JUNE 19, 2015

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TABLE OF CONTENTS

EXECUTIVE SUMMARY 3

1 FIRE PROTECTION AND LIFE SAFETY CODE

ANALYSIS 5

APPLICABLE CODES 5

FIRE PROTECTION FEATURES 5

MEANS OF EGRESS 9

2 ARCHITECTURE AND INTERIOR DESIGN 11

PROGRAM 11

EOC LIGHTING STUDIES 13

3 ACOUSTICS 17

INTRODUCTION 17

GLOSSARY OF TECHNICAL TERMS 17

ACOUSTICAL SEPARATION 18

INTERIOR FINISHES 22

MECHANICAL 22

4 MECHANICAL SYSTEMS 27

DESIGN CRITERIA 27

CALCULATIONS 28

SYSTEMS DESCRIPTIONS 29

5 ELECTRICAL SYSTEMS 33

DESIGN CRITERIA 33

SITE ELECTRICAL UTILITIES 34

INTERIOR 480/277 & 208/120 VOLT POWER DISTRIBUTION 34

EOC SECURE SPACE RENOVATION STRATEGY 36

ITOC OPEN OFFICE RENOVATION STRATEGY 36

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SEISMIC BRACING 37

GROUNDING 37

INTERIOR LIGHTING 37

SPECIAL SYSTEMS 38

6 WAYFINDING STRATEGY AND SIGNAGE

DESIGN 39

CAMPUS-WIDE WAYFINDING STRATEGY 39

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U.S. DEPARTMENT OF HOMELAND SECURITY

DHS OPERATIONS CENTER EOC/ITOC RENOVATION

EXECUTIVE SUMMARY

BACKGROUND

The United States Department of Homeland Security Headquarters (DHS) Operations Center (DOC) is located at the St. Elizabeths West Campus in Washington, DC. In July of 2009 GSA retained the Goody Clancy | HDR, LLC to provide programming and architecture/ engineering (A/E) services for the design of the DOC. The original DOC program included a below-grade DOC A facility and a DOC B with below-grade and above-grade structures.

DOC A is a primarily underground facility consisting of three below grade levels and has been constructed immediately adjacent to the United States Coast Guard Headquarters (USCG HQ) with a direct connection from the USCG Command Center in the DOC directly into the USCG HQ at the Lower Level 2 (LL2). Due to funding deficit, the below-grade portion of DOC B will not be built, only the above-grade West Addition portion. Therefore, DOC A will need to accommodate more of the operations groups that were originally located in the below-grade DOC B facility.

PROJECT DESCRIPTION

The DHS is increasing the current occupancy of the Enterprise Operations Center (EOC), Information Technology Operations Center (ITOC) and expanding the Information Technology Operations & Maintenance (IT O&M) on the Lower Level 1 (LL1) in the existing DOC A. LL1 mostly contains mechanical space and is approximately 5,216 square meters (56,149 square feet) in size, which will remain unchanged. The occupancy of the EOC area in Room LL1-651 will increase from 17 to 38 people, the occupancy in the ITOC area in Room LL1-601 will increase from 32 to 68 people and current Conference Room LL1-603 will be converted to the IT O&M space with an occupancy of 5 people. The total increase for these three (3) spaces combined is 62 people with associated equipment. The current Computer Room LL1-652 will be renovated to a conference room and the existing equipment will remain in a closet constructed to enclose the existing niche. The EOC space will be subdivided utilizing 8’-0” high demountable partitions into the following areas: CIO/ CISO SOC; CG CYBER SOC; USCG CYBER: Fusion/Focused OPS; USCG CYBER: LE Private Office; USCG CYBER: CI Private Office; and USCG CYBER: CSOC Director Private Office. The existing secure boundary will remain undisturbed.

Additional aspects of the renovation related to the modifications noted above will be reconfiguration of the power & data connections through the raised floor to coordinate with the new furniture layout, supplemental lighting to improve lighting conditions in the EOC, new audio visual equipment for the EOC, changes to exit signage and door hardware in accordance with life safety codes, and the installation of new chilled beams to treat the increased heat load due to densification of the spaces.

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1 FIRE PROTECTION AND LIFE SAFETY

CODE ANALYSIS

The Department of Homeland Security (DHS) consolidated Operations Centers facility (DOC) is a primarily-underground building located at the St. Elizabeths West Campus in Washington, DC. The building consists of three stories below grade and one above grade level. In accordance with the Life Safety-Egress Reference Sheet dated February 28, 2014, the total aggregate area of the building is 16,845 square meters (181,337 square feet).

It is important to note that this analysis is intended for the DHS Operations Center EOC/ ITOC, or Lower Level 1 (LL1) renovation project only.

APPLICABLE CODES

The applicable codes and/or regulations relative to fire protection and life safety concerns for the DHS Operations Center EOC/ITOC renovation project are:

� GSA 2014 P100 Facilities Standards (P100)

� 2012 International Building Code (IBC)

� 2012 Life Safety Code (LSC): NFPA 101

� 2003 International Building Code (IBC) – Accessible Means of Egress

To the maximum extent practicable, GSA requires that buildings and facilities on Federal property be constructed in compliance with the national building codes produced by the International Code Council (ICC); 2012 International Building Code being the most current edition.

In addition to the above referenced codes, the following standards for the installation of fire protection and life safety systems may be referenced in the design efforts. Note that additional standards may apply as referenced by the PBS-P100, IBC, or LSC.

� NFPA 10, Standard for Portable Fire Extinguishers, 2010 edition.

� NFPA 13, Standard for the Installation of Sprinkler Systems, 2010 edition.

� NFPA 14, Standard for the Installation of Standpipe and Hose System, 2010 edition.

� NFPA 70, National Electrical Code, 2011 edition.

� NFPA 72, National Fire Alarm Code, 2010 edition.

� NFPA 80, Standard for Fire Doors and Other Opening Protectives, 2010 edition.

� NFPA 90A, Standard for the Installation of Air-Conditioning and Ventilating Systems, 2009 edition.

� NFPA 110, Standard for Emergency and Standby Power Systems, 2010 edition.

This analysis should not be construed to be a comprehensive review of structural, mechanical, electrical, plumbing or elevator code provisions (other than those fire protection and life safety items noted herein).

FIRE PROTECTION FEATURES

CONSTRUCTION TYPE

The existing building is a Type IA, protected, non-combustible structure in accordance with the Life Safety-Egress Reference Sheet dated February 28, 2014 and the 100% construction Documents Narrative-III Code Analysis dated May 1, 2011. Primary structural elements of Type IA buildings will be 3-hour rated. Primary structural elements supporting a roof only will be 1-1/2-hour rated, and all floor construction will have a fire resistance rating of 2-hours.

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Primary structural members are considered to be bearing walls, columns, and the girders, beams, trusses and spandrels having direct connections to columns and bracing members designed to carry gravity loads. The members of floor or roof panels which have no connection to the columns and do not carry a gravity load are considered secondary members and are not part of the structural frame of a building.

Construction of the building should be maintained throughout the proposed EOC/ITOC renovation project.

Refer to Part C below for fire resistance rating requirements.

USE AND OCCUPANCY

Under the requirements for Type IA construction all uses within the building (B, A, S) are permitted to be unlimited area. Therefore, the building is classified as a non-separated, mixed use building, containing Business Group B (offices, command centers, and data centers), Assembly Group A-3 (conference rooms), and Storage Group S-1 (storage rooms). Other supporting uses will include mechanical, electrical, and telecommunication rooms.

Due to this non-separated, mixed use classification, occupancy separations are not required in the building.

FIRE RESISTANCE RATINGS

The proposed EOC/ITOC renovations on LL1 will most likely not affect many fire resistance ratings in the building. As indicated above, fire rated occupancy separations are not required in the building. Interior building elements that require fire-resistance ratings are listed below:

BUILDING ELEMENT FIRE-RESISTANCE RATING

EXIT STAIR ENCLOSURES 2

OTHER SHAFTS 2

ELEVATOR MACHINE ROOMS 2

COMPONENT WALLS AND PARTITIONS (HR) FIRE DOOR ASSEMBLIES (MIN)

ELEVATOR HOIST WAYS,

ELEVATOR MACHINE ROOMS

1 60

2 90

VERTICAL SHAFTS

(INCLUDING EXIT

STAIRWAYS)

1 60

2 90

IT EQUIPMENT ROOMS

(PBS-P100, SECTION 711.2 /

NFPA 75, SECTION 5.1.3.2) 1 60

INTERIOR FINISH

All new finishes associated with the proposed EOC/ITOC renovation must comply with the following:

WALL & CEILING FINISHES

Interior wall and ceiling finish are to be classified in accordance with ASTM E84, Standard Method of Test of Surface Burning Characteristics of Building Materials. Classifications are provided in the following table (IBC Section 803.1).

CLASSIFICATION FLAME SPREAD SMOKE DEVELOPMENT

CLASS A 0-25 0-450

CLASS B 26-75 0-450

CLASS C 76-200 0-450

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In Business occupancies:

� In exit enclosures of building less than 3 stories in height, Class C interior finish for sprinklered buildings is permitted (IBC Section 803.9).

� In exit access corridors, Class C interior finish is permitted (IBC Section 803.9).

� Rooms or enclosed spaces are based upon spaces enclosed in partitions of the building or structure. Where a fire resistance rating is required for the structural elements, the enclosing partitions must extend from the floor to ceiling. If enclosing partitions do not comply, the rooms or spaces on both sides are considered as one. In rooms or enclosed spaces, Class C interior finish is permitted (IBC Section 803.9).

In Assembly Group A-3 occupancies:

� In exit enclosures of building less than 3 stories in height, Class C interior finish for sprinklered buildings is permitted (IBC Section 803.9).

� In exit access corridors, Class B interior finish is permitted (IBC Section 803.9).

� Rooms or enclosed spaces are based upon spaces enclosed in partitions of the building or structure. Where a fire resistance rating is required for the structural elements, the enclosing partitions must extend from the floor to ceiling. If enclosing partitions do not comply, the rooms or spaces on both sides are considered as one. In rooms or enclosed spaces, Class C interior finish is permitted (IBC Section 803.9).

In Storage Group S-1 occupancies:

� In exit enclosures, Class C interior finish for sprinklered buildings is permitted (IBC Section 803.9).

� In exit access corridors, Class C interior finish is permitted (IBC Section 803.9).

� Rooms or enclosed spaces are based upon spaces enclosed in partitions of the building or structure. Where a fire resistance rating is required for the structural elements, the enclosing partitions must extend from the floor to ceiling. If enclosing partitions do not comply, the rooms or spaces on both sides are considered as one. In rooms or enclosed spaces, Class C interior finish is permitted (IBC Section 803.9).

FLOOR FINISHES

Interior floor finish and floor covering materials are to be classified in accordance with NFPA

253. Classifications are provided in the following table (IBC Section 804.2).

CLASSIFICATION RADIANT FLUX

CLASS I 0.45 Watts/cm^2 or greater

CLASS II 0.22 Watts/cm^2 or greater

Interior floor finish and floor covering materials in exit enclosures and corridors cannot be less than Class II in Group B occupancies. In sprinklered buildings, materials complying with the DOCFF-1 “pill test” (CPSC 16 CFR, Part 1630) are permitted in any areas where Class II materials are required. (IBC Section 804.4.1) Where finished floors or floor covering materials are of a traditional type, such as wood, vinyl, linoleum, terrazzo and other resilient floor covering materials, need not comply with above floor finish requirements (IBC Section 804.1).

GSA SPECIFIC REQUIREMENTS

Adhesives and other materials used for the installation of carpets shall be limited to those having a flash point of 60 degrees C (140 degrees F) or higher.

All other materials composed of combustible substances, such as wood (e.g., plywood, 610 mm by 1219 mm (2 feet by 4 feet) wood boards, etc.) shall be treated with fire retardant chemicals by a pressure impregnation process or other methods that treats the materials throughout (as opposed to surface treatment).

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AUTOMATIC FIRE SPRINKLER SYSTEM

In accordance with the as-built Fire Protection Reference Sheet FX-000, dated February 28, 2014, the building is fully protected by an automatic sprinkler system that was designed per NFPA 13.

Nearly all areas are equipped with quick-response sprinklers. The existing sprinkler system should be maintained throughout the proposed EOC/ITOC renovation project. Refer to MEP Analysis on the existing building systems for an understanding of all required components related to the fire sprinkler system.

PORTABLE FIRE EXTINGUISHERS

Portable fire extinguishers must be provided and spaced in accordance with NFPA 10 in all assembly, business and storage occupancies within proposed EOC/ITOC renovation project.

However, fire extinguishers are not required in Group A and B occupancies protected throughout by quick response sprinklers. All existing fire extinguisher locations should be maintained.

FIRE ALARM SYSTEM

In accordance with the as-built Fire Alarm Reference Sheet, FA-000 and the 100% construction Documents Narrative-III Code Analysis, the building is equipped with a fire alarm and voice communication system that was designed per NFPA 72. The system is electrically monitored and supervised. The existing fire alarm and voice alarm system should be maintained throughout the proposed EOC/ITOC renovation project. Refer to MEP Analysis on the existing building systems for an understanding of all required components related to the fire alarm system.

SMOKE CONTROL SYSTEM

In accordance with the as-built Mechanical Standard plan, M-000 and the 100% construction Documents Narrative-III Code Analysis, the building is protected by a smoke control system as required for all underground buildings. Activation of the smoke control system is automatic upon actuation of an automatic sprinkler zone and includes manual controls. The smoke control system will be provided with standby power, which will operate within 60 seconds of normal power loss to the building.

The existing smoke control system should be maintained throughout the proposed EOC/ITOC renovation project. Refer to MEP Analysis on the existing building systems for an understanding of all required components related to the smoke control system.

STAIRWAY PRESSURIZATION

Per the as-built Mechanical plan M-632, smoke proof enclosures have been provided in the building. All stairways serving floor levels more than 9.144 meters (30 ft.) below the finished floor level of the discharge level must be pressurized. The stair pressurization systems are activated when smoke is detected in close proximity to any of the stair entry doors to each stair enclosure.

Manual controls for the stair pressurization systems are also be provided in the fire command center. The stair pressurization fans will be provided with a primary and a secondary power supply. In the event of primary power failure, the stair pressurization fans are connected to the standby power system.

The existing smoke proof enclosures should be maintained throughout the proposed EOC/ ITOC renovation project. The proposed Stair D should comply with the requirements for smoke proof enclosures to match the existing stairways. Refer to MEP Analysis on the existing building systems for an understanding of all required components related to the smoke pressurization system.

FIRE COMMAND CENTER

Although not required by Code, in accordance with the 100% Construction Documents Narrative- III Code Analysis, the building contains a fire command center. The fire command center is enclosed in 2-hour fire rated construction and should be maintained throughout the proposed EOC/ITOC renovation project.

If current building plans are provided in the Fire Command Center, those plans should be updated to reflect the newly renovated areas. Refer to MEP Analysis on the existing building systems for an understanding of any equipment changes within the fire command center.

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EGRESS LIGHTING AND EXIT SIGNAGE

Emergency egress lighting will be provided throughout the common portions of the means of egress in accordance with LSC. These areas include corridors, exit access spaces within areas requiring two (2) or more means of egress, the lobby/entrance areas, exit stairs, and the exit discharge areas (including exterior locations until the public way).

As required by PBS-P100, exit signage will meet the performance requirements of LSC.

Each required exit will be identified with an exit sign, including exit access, and within areas requiring multiple exits. Directional exit signs will also be provided to direct occupants toward the closest exit so that no occupant is more than 30.48 meters (100 ft.) from an exit sign.

The egress lighting and exit signs will be provided with a secondary source of power in the event that the primary power source is disrupted. The secondary power source will consist of either internal batteries or a connection to an emergency power system. Refer to MEP Analysis on the existing building systems for an understanding of all required components related to the electrical systems serving egress lighting and exit signage.

MEANS OF EGRESS

The means of egress system will be designed in accordance with the general means of egress provisions outlined by the LSC. The project will have an exit capacity adequate to accommodate the calculated occupant load.

� The proposed EOC/ITOC renovation project will provide adequate exit capacity for the calculated occupant load.

� A minimum of two (2) exits are provided from each level. Three (3) exits will be provided where the occupant load exceeds 500.

� Travel distance will not exceed 250 feet.

� Common path of travel distance is less than 75 feet.

� Dead-end conditions do not occur.

LSC Table 7.3.3.1 requires a minimum egress width of 5.08 mm (0.2 in) per occupant for doors, ramps, and corridors and a minimum egress width of 7.62 mm (0.3 in) per occupant for stairs; both factors assume a fully sprinklered building.

Exits must be so located on each story such that the maximum length of exit access travel, measured from the most remote point within a story along the natural and unobstructed path of egress travel to an exterior exit door at the level of exit discharge, an entrance to a vertical exit enclosure, an exit passageway, a horizontal exit, an exterior exit stairway or an exterior exit ramp, may not exceed the distances allowed by the Code. Table 1016.1 limits travel distance for Assembly, and Storage occupancies to 76.2 m (250 ft.) and 91.44 m (300 ft.) for Business occupancies.

Exit access must be arranged such that there are no dead-ends in corridors more than

15.24 m (50 ft.) for Business and Storage occupancies and 6.096 m (20 ft.) for all other occupancies.

Further, common path of travel is limited to 22.86 m (75 ft.) for Assembly occupancies with an occupant load of 50 or more. The common path of travel for Assembly occupancies with an occupant load less than 50 is 6.096 m (20 ft.). In Business and Storage occupancies common path of travel is limited to 30.48 m (100 ft.). Common path of travel is the portion of exit access where occupants are required to traverse before two separate and distinct paths of egress travel to two exits are available. If common path of travel is exceeded from any space or story, an additional exit will be required.

In addition to the exits required based on common path of travel limitations, all spaces and each story must have access to the minimum number of approved independent exits based on the occupant load. A minimum of two exits are required from any story with an occupant load of 500 or less, three exits from any story with an occupant exceeding 500 but less than 1,000, and four exits from any story with an occupant load exceeding 1,000.

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Note that each floor level serving an underground level must be provided with at least two (2) exits. (405.7.1)

Where two or more exits or exit access doorways are required from any portion of the exit access, at least two of the exit doors or exit access doorways must be placed a distance apart equal to not less than one-third of the length of the maximum overall diagonal dimension of the building or area to be served measured in a straight line between exit doors or exit access doorways.

Exit doors serving a room or space, with an occupant load greater than 50, must swing in the direction of egress travel.

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2 ARCHITECTURE AND INTERIOR

DESIGN

DESIGN CRITERIA

In addition to the codes referenced elsewhere in this document, the design will meet the requirements and standards of the following documents:

� 2014 PBS-P100, Facilities Standards for the Public Buildings Service

� 2010 ADA Standards for Accessible Design

Additionally, all personnel workspace within the DOC will be designed in accordance with:

� Instruction 119-02-003, DHS Workspace Standard

The design contains a number of SCIF and SCIF-like spaces, which will be designed in accordance with the following standards, in descending order from general to specific:

� Intelligence Community Directive (ICD) 705 Sensitive Compartmented Intelligence Facilities, and subsets thereof.

� DHS Instruction 121-01-001 Administrative Security Program

� DHS HQ Physical Security Construction and Equipment Specifications Handbook (May 27, 2010)

� Memorandum: Sensitive Compartmented Information Facility (SCIF) Security Requirements, DHS-OCIO-DC.12

� Memorandum: DHS – TEMPEST Assessment of DOC A SCIF at St. Elizabeths – DHS CTTA (February 6, 2015)

� Memorandum: DHS – TEMPEST Assessment of NOC SCIFs at St. Elizabeths – DHS CTTA (February 20, 2015)

PROGRAM

The EOC/ITOC Renovation project entails the densification of the existing Enterprise Operations Center (EOC) and Information Technology Operations Center (ITOC) spaces on Lower Level 1 of the DOC in order to provide additional workstations for the following groups:

� United States Coast Guard Cyber Command (CG Cyber)

� Chief Information Security Office Security Operations Center (CISO SOC)

� Information Technology Operations & Maintenance (IT O&M)

A Program of Requirements has been developed to describe the programmatic space needs and functional criteria for each of the groups described above; this document can be found in the Appendix.

EOC SECURE SPACE

The currently existing EOC will be subdivided through the use of 8’-0” high demountable partitions in order to provide physically separate spaces for the following groups:

� CISO Security Operations Center (SOC);

� CG Cyber Command

� CG Cyber Fusion-focused Ops

� Offices for the CG Cyber Command Director, CG Cyber Law Enforcement, and CG Cyber Counterintelligence.

The EOC Secure space will also include a shared work room with a shredder, printer/ copiers, and lateral files. An existing computer/storage room will be converted to a

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shared conference room with Video Teleconference (VTC) capabilities across the classified and unclassified networks.

The CG Cyber Watch floor will include a 2x3 knowledge wall with VTC capabilities at the front of the space.

The EOC will be a 24/7/365 space, and the occupant load will be relatively constant throughout the multiple shifts.

The existing secure boundary around the EOC will remain intact throughout the renovation (with the exception of the installation of new doors). DHS security has confirmed the EOC will not need to be re-accredited as a SCIF after completion of construction.

An existing vestibule with personal electronic device (PED) lockers will continue to serve as the access point to the EOC. In order to provide a second means of egress from the EOC, the existing doors from the corridor to the vestibule and from the vestibule to the EOC will need to be removed and replaced with new doors swinging in the direction of egress travel. New frames are also anticipated to be required for both doors, especially at the EOC, where the door and frame assembly will need to meet STC 50.

ITOC OPEN OFFICE SPACE LL1-601

The currently existing ITOC is an open office space with numerous L-shaped workstations, which will be replaced with a larger quantity of 6’-0” long straight workstations. The redesigned ITOC will provide workspace for the Sensitive but Unclassified (SBU) components of CISO SOC and IT O&M. IT O&M will occupy the east side of the ITOC; CISO SOC the west side.

Some additional furniture and equipment, such as wall-mounted display monitors, printers, shredders, and lateral files will also be required in the ITOC to support the functions of the two groups. The types and quantity of furniture and equipment have been verified with the various groups through a Design Intent Document process and should be accurate as shown on the drawings.

Like the EOC, the ITOC is a 24/7/365 space; however, unlike the EOC, the population fluctuates significantly between main and secondary shifts.

The ITOC is a bright, evenly lit space, and will accommodate the future furniture configuration without any modifications to the existing lighting scheme.

IT O&M ROOM

An existing conference room off the west corridor will be converted to a secure workroom for IT O&M personnel supporting Secret and TS/SCI classifications. Four full-time workstations and one touchdown workstation will be required to accommodate these personnel. A list of additional equipment is included in the Program of Requirements. Investigation of as-built drawings and existing conditions indicates the conference room was built partially to SCIF standards, with furred walls to accommodate recessed and wall-mounted equipment but without the necessary requirements for mechanical penetrations. Acoustical testing reports provided by DHS Office of the Chief Security Officer (OCSO) have indicated that existing wall construction meets the required STC 45 rating for unamplified speech around the perimeter of the room; however the existing door falls well below the required criteria and will need to be replaced with a new door and frame to meet STC 45. The existing ceiling in this room will be demolished in order to improve access for the necessary mechanical modifications required to bring the room to SCIF standards.

Existing ceiling tile will be removed and stored for reinstallation, and a new acoustical tile ceiling will be installed. The existing projection screen and control system will be salvaged for later re-use.

STORAGE LL1-602

The current configuration of workstations within the EOC and ITOC are large enough to accommodate wardrobe lockers for storage of coats and other personal items at each individual desk. During the renovation these workstations will be replaced with smaller workstations, without wardrobe lockers. In conjunction with the increased occupant load of the EOC and ITOC, the lack of personal storage space will become a critical problem for staff. New lockers will need to be provided at a ratio of 1 locker per seat in the EOC & ITOC. Space has been identified for these

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lockers in Storage Room LL1-602. Existing shelving units will be relocated by the tenant to the adjacent Hub Room LL1-610 prior to the start of construction to create room for the installation of new lockers. Lockers will be 2-high, 24” deep, and be of metal construction with powder-coated finish.

SECURE HUB ROOM

The Secure Hub Room is an existing room housing server racks for secure information infrastructure, located within the existing secure boundary. Entry to this room is required from the adjacent corridor, but is not currently possible due to the hardware configuration.

Since field modifications to the existing door to accommodate an X10 lock and LKM egress device would invalid the required fire rating for this door, a new door and frame will be provided, with 45-minute fire rating and STC-45 rating. The door between the Hub Room and the EOC will have hardware modifications.

EOC LIGHTING STUDIES

The existing lighting level in the EOC is very dim and has been supplemented by the occupants with consumer-grade floor lamps. The fragmenting of the space with demountable partitions will likely further degrade the existing lighting conditions. As an alternative to entirely reconfiguring the existing ceiling in the space to provide additional light fixtures, the design team recommends that workstation-mounted ambient lights be provided, similar to the Tambient L305 fixture. This fixture provides uplighting and task lighting at each individual fixture. The uplight component at each fixture will be circuited together, for uniform control of the space uplighting from one wall switch. Control for the task lighting component is retained at each individual workstation.

View from the back row of the CISO SOC towards the front wall, showing proposed configuration of task/ambient lights.

Section through the CISO SOC space showing sight lines to the front wall display monitors.

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DHS OPERATIONS CENTER EOC/ITOC RENOVATION

View from the back row of the CG Cyber Watch towards the front wall, showing proposed configuration of task/ambient lights.

The design team explored several alternatives for configuration and height of the task/ambient lights. Retaining uninterrupted views to the display monitors at the front of the CISO SOC and CG Cyber Watch was paramount. The plan configuration shown in the drawings, with fixtures at approximately 57” AFF (28” above the worksurface) will maintain views to the display monitors (as shown in the images below) while producing a relatively even distribution of light on the ceiling surface. The uplight component for task/ambient lights in the CISO SOC will be switched separately from the task/ambient lights in the CG Cyber SOC, allowing operational independence for activities in each space.

Additional new wall-mounted uplight fixtures will be provided at the demountable partitions in the Work Room, Fusion/Focused Ops, and the small private offices along the west wall of the EOC perimeter.

CONSTRUCTION PHASING

In order to minimize impacts to the operational capabilities of the various groups, phasing of construction activities will be required. In addition to the below summary of activities, a construction phasing plan has been included on the drawings.

PHASE 1

Hub Room: Modifications to doors and hardware (by Contractor); installation of alarm panel, keypad, motion detectors, and BMS (by GDIT).

IT O&M Room: Demolition, construction, furnishing (by others), accreditation, and occupancy by tenant.

All Phase 1 activities must be complete before Phase 2 can begin. The government will continue operations within the EOC during Phase 1.

PHASE 2

EOC inner vestibule door, including accreditation. Must be complete and accredited before Phase 3 can begin.

PHASE 3

All work within existing Zone A boundary (EOC); AND outer vestibule door.

REMAINING WORK

ITOC, Storage LL1-602. Must start concurrently with Phase 1 and may continue as needed during subsequent phases as long as work does not impact operations within Zone A boundaries.

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INTERIOR CONSTRUCTION AND FINISHES

Since the majority of the renovation work will consist of partial modifications to existing spaces, interior construction and finishes will be specified to match existing conditions and finishes wherever possible. Reconfiguration of permanent physical infrastructure, such as walls and ceilings, will be extremely limited. Painting and patching of all walls shall be included. In addition, due to potential mechanical work above the ceiling, an allowance for replacement of 10% of the existing ceiling tile should be provided along with painting and patching of hard ceilings.

The existing front wall of the EOC was originally intended for a large video wall (although only two large LCD screens were ultimately installed) and is clad in wood veneer panels with a black fabric screen in the location of the intended video wall. In the new configuration of the space, this screen would be off-center and span awkwardly between the CISO SOC and CG Cyber portions of the room. In addition, if the wall mounted-monitors on the CISO SOC side are centered on the furniture layout, two of the monitors would fall within the black screen while one would hang off to the side on the wood panels. The design team recommends removing most of the existing wall panelling and replacing it with removable fabric-wrapped panels to the edges of the video display units in both spaces. This will also provide maximum flexibility for future knowledge wall installation when the space is converted back into one open room. Operable millwork doors will be integrated into the wood panel wall below the knowledge wall to provide access to AV equipment racks in the wall cavity.

Within the EOC, surface mounted stainless steel corner protection shall be provided at all outside corners of existing gypsum board walls, and chair rails shall be provided at the perimeter gypsum board walls.

The basis of design for the demountable partitions will be DIRTT, the same product used in the Munro Building. Demountable partitions will include portions of integrated white board and integrated fabric panels as shown in the architectural drawings.

Carpet tile in both the EOC and ITOC spaces will be removed and stored for reinstallation after coordination of the power and data infrastructure in the raised floor. An allowance should be provided for replacement of 10% of the existing carpet tile to match existing, and an add-alternate should be provided for all new carpet throughout. In addition, new 4” rubber base should be provided throughout.

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3 ACOUSTICS

INTRODUCTION

The recommendations in this report are based primarily on the GSA PBS-P100 document which outlines requirements for all GSA spaces. We have also incorporated industry best practices design guidelines where appropriate or where the P100 document is not specific.

In addition, we have incorporated information from the DHS OCSO Document for spaces that necessitate this level of construction as well as ASHRAE design guidelines for the mechanical equipment and vibration isolation of the space.

It should be noted the scope of new construction and modifications to existing partitions and ceilings as part of the EOC/ITOC Renovation will be relatively limited. Some details, conditions, and information shown may not be applicable in the final design but are shown for reference in case they become necessary as the design evolves, and to illustrate probable acoustical design intent of existing conditions.

GLOSSARY OF TECHNICAL TERMS

The following is a glossary of technical terms that we propose to use to define the acoustical properties of the various spaces and conditions within the DHS DOC A EOC/ ITOC Renovation Project.

SOUND TRANSMISSION CLASS (STC)/NOISE ISOLATION

CLASS (NIC)

Sound Transmission Class (STC) is a rating given to a partition design that denotes the ability of a partition to impede sound traveling through it. The partition design is tested and given a rating under laboratory conditions. Typically a partition will test anywhere from 3 to 6 dB lower than its laboratory rating when measured in the field because of variables in the construction process. This STC rating is used here to prescribe the necessary acoustical separation from one space to another. STC rating focuses on noise reduction for sound in the range of the typical human voice, so there is a direct correlation between the STC rating of the partition and the speech privacy provided.

NIC, or Noise Isolation Class, is the test standard used for in-field measurements. STC is a laboratory rating which only accounts for the loss of sound directly through a material, while the NIC also takes into account all of the ‘flanking’ paths where sound may get around, under or over a partition, as well as other field conditions such as unsealed joints, layers of plaster board etc. STC 55 will typically test in the field to around NIC 50.

NOISE CRITERIA (NC)

Noise Criteria is a single number that describes the level of sound as heard by human beings. The family of NC curves closely resembles equal loudness within the individual octave band frequencies, and therefore allows higher sound levels within the lower frequencies than the higher frequencies.

Reverberation Time (RT60)

RT60 is the amount of time it takes for a sound to decay by 60 dB within a space. If a space is bright and sound reflective, a long Reverberation Time is likely. In spaces where speech, listening and teleconferencing are common, a short RT is desired as this helps ensure speech clarity and listening comfort.

IMPACT ISOLATION CLASS (IIC)

Impact Insulation Class (IIC) is a single number rating to gauge noise due to impacts such as footfall noise, etc. between spaces. Typically an IIC rating of 51 is considered standard for residences and is not generally a concern when there is carpet in the upper room. IIC measurements are defined by ASTM E-1007. Field Impact Insulation Class (FIIC) is the in-field verified version of IIC.

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ACOUSTICAL SEPARATION

This is typically defined by Sound Transmission Class (STC). Sound Transmission Class (STC) is a rating given to a partition design that denotes the ability of a partition to impede sound traveling through it.

For areas such as offices, conference rooms, etc., we intend to use the GSA PBS-P100 document to outline a direction for acoustical separation. A short summary of those guidelines with regards to acoustical separation is shown in the table below:

SPACE MINIMUM NOISE ISOLATION CLASS (NIC)

WORK ROOM* 53

CONFERENCE ROOMS 48

PRIVATE OFFICES, CONFIDENTIAL SPEECH

PRIVACY

PRIVATE OFFICES, NORMAL SPEECH PRIVACY 40

* The P100 document does not provide information for this type of space, however; we have assumed that it is similar in nature to a teleconferencing space and therefore recommend the same type of partition construction.

In addition, for areas where mechanical systems are located above or below occupied spaces, space should be set aside for construction upgrades that may be necessary depending on the location of mechanical systems, i.e. if AHUs are located above office spaces.

Floor/Ceiling assemblies separating office spaces shall achieve an NIC of not less than 50 (when furnished) and a Field Impact Isolation Class (FIIC) of not less than 50.

PARTITION CONSTRUCTION RECOMMENDATIONS

Partition constructions are based on 25 gauge studs at 24” on center. Variations in either stud gauge or in stud spacing could result in lower performing partitions.

STC

RATING

PARTITION CONSTRUCTION ACOUSTICAL PRIVACY

PROVIDED

CONSTRUCTION DETAIL

STC 45

(NIC 40)

Two (2) layers drywall with insulation:

Single layer drywall (5/8”) each side of metal studs with insulation between studs, erected slab to slab.

‘Good’ Degree of Privacy:

Normal voices in adjacent office space audible but unintelligible most of the time. Raised voices and speakerphones partially intelligible.

STC 50

(NIC 45)

Three (3) layers drywall with insulation:

Double layer (1-1/4” total) one side of metal studs (2-½”), single layer (5/8”) the other side with insulation between studs, erected slab to slab.

‘Excellent’ Degree of Privacy:

Normal voices in adjacent space barely audible. Raised voices and speakerphones audible but mostly unintelligible.

STC 55

(NIC 50)

Four (4) layers of drywall with insulation:

Double layer drywall (1-1/4” per side) each side of metal studs with insulation between studs, erected slab to slab.

‘Confidential’ Degree of Privacy:

Normal voices in adjacent space are not audible. Raised voices and speakerphones are barely audible but not intelligible.

STC 58

(NIC 53)

Four (4) layers of drywall with insulation on Independent

Double Studs:

Double layer drywall (1-1/4” per side) each side of independent metal studs with insulation between studs, erected slab to slab.

‘Isolated’ Degree of Privacy:

Normal voices in adjacent space are not audible. Raised voices and speaker-phones are barely audible but not intelligible. Isolates plumbing noise and potential impacts from wall mounted cabinets being closed

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PARTITION DETAILS

Partition construction details must be consistent with good acoustical design practice. It is important that the following guidelines are followed:

� Electrical and service outlets (AV jacks, etc.) for adjacent rooms are to be positioned minimum 24” apart and in separate stud spaces. See detail below:

� Electrical and service outlets (AV jacks, etc.) to be wrapped with non-hardening pad (similar to 3M puddy pads) to seal all gaps from the outlet box to the stud cavity.

� Partitions are to be built full height from base building floor to the base building structure above; unless otherwise detailed.

� No drywall layers are to be continuous between two adjacent rooms. In other words, drywall is to be interrupted at all partition intersections, and is to close through perimeter fascia to the base building construction. See detail below:

� Provide continuous acoustical (non-hardening) caulking beads on each side of the bottom stud runner at the three-way intersection between the runner, floor and drywall.

� Acoustical caulking to close gaps between service outlets (electrical, telephone, data, etc.) and drywall.

� Multiple layers of drywall are to be applied with staggered joints, etc.

� Penetrations that interrupt studs are to be completely framed around with a nominal 1” gap around the penetrating element.

� Penetrations above ceiling to be acoustically sealed as follows:

� Gap less than or equal to ¼ inch: Acoustical sealant or similar non-hardening, ever-resilient caulking compound.

� Gap from ¼ inch up to 1 inch: Compressed backer rod with acoustical sealant or similar non-hardening, ever-resilient caulking compound.

� Gaps over 1 inch: Filled tightly with batt insulation and heavy-density putty such as Nelson FSP or CLK Sealant; J.M. Clipper ‘Duxseal’; 3M ‘Moldable Putty.’ Fire ratings of materials to be verified by others.

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� Cable trays to be packed tightly with insulation or fire stop pillows once cables are pulled.

� Return transfer duct locations must be coordinated with the mechanical engineer.

DOORS

We present the following recommendations for door construction and seals for both SCIF and non-SCIF:

SPACE DOOR

CONSTRUCTION

JAMB AND HEAD BOTTOM

OFFICES -- Neoprene strip seals. Max. ¼” undercut

WORK ROOMS,

CONFERENCE ROOM

Solid wood or Poly-insulation filled door leaf;

Frame solid or packed with insulation

Low profile adjustable neoprene bubble seal.

Zero #188 or Pemko S88

Semi-mortised to be flush with door.

Zero #360 or Pemko Model 434 ARL

MECHANICAL ROOMS 16 gauge (1.5 mm) door & frame; Vertically stiffened with insulation fill; Welded construction.

Magnetic seal.

Zero #370

High performance automatic drop seal;

surface mounted to close to acoustical saddle.

Zero #367 Frame Saddle; neoprene bubble gasketed saddle

Zero #564

SENSITIVE COMPARTMENTED INFORMATION FACILITY (SCIF)

For spaces labeled SCIF spaces, we intend to use the ICD-705 as the construction standard with additional guidance from the DHS OCSO Guideline to provide an appropriate level of acoustical separation between these spaces and the surrounding areas. This document states the following with regards to acoustical separation:

� For spaces where amplified speech will occur, i.e. teleconferencing rooms or rooms with speaker phones: STC 50

� For spaces where amplified speech will not occur: STC 45

� Doors must be equivalent to the STC rating provided by the walls

Construction for the above noted partition types are noted as follows in the DHS OCSO Guideline:

� STC 45: 3 layers of 5/8” drywall (one layer on the non-SCIF side of the stud and two layers on the SCIF side of the stud) on 3 ½” 16-20 gauge studs, slab to slab with batt insulation.

� STC 50: Adds a layer of drywall to the STC 45 construction

Please note that the differences in STC between the above noted constructions and our typical partition recommendations are due to the difference in stud gauge and stud spacing.

DOORS

Doors shall meet the appropriate acoustical separation criteria for the room’s Sound Group.

Please note that this will likely require an acoustically rated door assembly. Please note that these are laboratory-tested, acoustically-rated, prefabricated door/frame assemblies from a specialty manufacturer. These specialty doors are shipped to the site as a door/frame assembly ready to be inserted into the wall.

The installation details of these doors, including grouted or insulation packed into door frames, etc., are recommended to be shown on project drawings. We suggest contacting one or more of the following vendors for information and pricing:

� Industrial Acoustics Co (718)931-8000

� Overly (800)979-7300

� Krieger Specialty Doors (618) 337-3908

� Wenger (800)733-0393

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For budget pricing, STC-50 doors will generally be in the $2500-$3500 depending on size and fire-rating requirements, not including specialty finishes.

SCIF DETAILS

The following are general details which aid in meeting the SCIF requirements. These should be included in the drawings.

Typical Duct Penetration:

Typical Electrical/Low Voltage Cable Penetration:

Electrical and Communications Back-Boxes:

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ACOUSTICAL…