Attachment B_2021 09 30 598-19-127 Construction Documents BOD Narrative V1.pdf

VA Project No. 598-19-127

Renovate Building 104 - LETC Eugene J. Towbin VAMC Campus

Ft. Roots North Little Rock, AR

BASIS OF DESIGN NARRATIVE

CONSTRUCTION DOCUMENTS

2021.09.30

JohnsonDanforth & Associates

JohnsonDanforth, Inc.

2200 N. Rodney Parham Road | Suite 210

Little Rock, AR 72212 P: (501) 404-4811 F: (501) 404-2411

POC: Sam McGuire IV, AIA Sam.McGuire@JohnsonDanforth.com

36C-256-18-D-0128 mailto:Sam.McGuire@JohnsonDanforth.com

JohnsonDanforth & Associates

TABLE OF CONTENTS

CHAPTER 01

Project Overview 3

CHAPTER 02

Architectural Design 13

CHAPTER 03

Fire Protection Design 17

CHAPTER 04

Plumbing Design 19

CHAPTER 05

Mechanical Design 21

CHAPTER 06

Electrical Design 25

CHAPTER 07

Telecommunications Design 26

CHAPTER 08

Structural Design 27

CHAPTER 09

Design Phase Estimate 28

Renovate Building 104 - LETC 598-19-127 Eugene J. Towbin VAM Construction Documents 36C-256-18-D-0128 2021.09.30

Eugene J. Towbin VAMC 36C-256-18-D-0128

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APPENDICES 29

A. Structural Calculations

B. Cut Sheets

C. RFIs

D. Critical Action Log

E. Design Team Checklists

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CHAPTER 01

PROJECT OVERVIEW

INTRODUCTION (JohnsonDanforth & Associates) This project is focused on a limited renovation of Building 104, a historic building located at Fort Roots in North Little Rock, Arkansas. Fort Roots, its associated buildings, as well as the adjacent Eugene J. Towbin (EJT) Healthcare Center, are part of the Central Arkansas Veterans Healthcare System (CAVHS).

Building 104 is currently a Law Enforcement Training Center (LETC), and this project will provide a limited renovation of the historic structure to better meet the needs of law enforcement user groups.

The Scope of Work includes full replacement of all building restrooms and shower rooms, principally to conform to ADA/ABA accessibility requirements, the addition of a structural beam to provide adequate support for a large existing copier, and new flooring throughout all spaces. Mechanical upgrades are limited to providing a new cooling tower for the building, with a small number of unitary cabinets replaced as part of the restroom work described above.

Due to budgetary restraints, the Scope of Work does not include comprehensive replacement of all mechanical systems to meet modern standards. Other than the installation of the previously mentioned cooling tower, no other components of the heating or cooling infrastructure are included.

Copier Room 105

• This room currently contains a large existing copier machine, which is inadequately supported by the existing wood floor assembly.

• The Scope of Work includes the installation of a new structural beam in the basement area directly below, underneath the floor which needs additional support.

The beam will include necessary beams for support at the basement foundation slab.

• The Structural Engineer of Record will provide structural member sizes and details for the new structural elements.

Men’s Restroom and Showers 113

• The current restroom does not comply with ADA/ABA accessibility guidelines.

• The current restroom has outdated plumbing fixtures and finishes.

• The current restroom has an outdated unitary cabinet, with significant surface rust evident on the cabinet enclosure, caused by excessive moisture in the space.

• The Scope of Work includes full replacement of all plumbing fixtures (water closets and

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2021.09.30 lavatories) with new water-efficient fixtures.

• The Scope of Work includes the demolition of certain existing interior finish partitions within this area, with limited new interior finish partitions located to conform with ADA/ABA requirements.

• The Scope of Work includes the removal of an existing unitary cabinet at a restroom and replacement with a new unitary cabinet and associated mechanical equipment within.

• The Scope of Work includes the full replacement of all flooring, ceilings, and interior finish partitions, both existing and new, for renewal of the restroom finishes.

• The Scope of Work includes the full replacement of all lighting fixtures within the restroom with new LED fixtures, to meet current lighting standards.

• The Scope of Work includes the full replacement of showers with the restroom with new ABA/ADA compliant showers with new finishes.

• The Scope of Work includes limited replacement of fire sprinkler infrastructure, including sprinkler heads, as may be necessary to comply with life safety requirements of the reconfigured restroom.

Women’s Restroom and Showers 114

• The current restroom does not comply with ADA/ABA accessibility guidelines.

• The current restroom has outdated plumbing fixtures and finishes.

• The current restroom has an outdated unitary cabinet, with significant surface rust evident on the cabinet enclosure, caused by excessive moisture in the space.

• The Scope of Work includes full replacement of all plumbing fixtures (water closets and lavatories) with new water-efficient fixtures.

• The Scope of Work includes the demolition of certain existing interior finish partitions within this area, with limited new interior finish partitions located to conform with ADA/ABA requirements.

• The Scope of Work includes the removal of an existing unitary cabinet, and replacement with a new unitary cabinet and associated mechanical equipment within.

• The Scope of Work includes the full replacement of all flooring, ceilings, and interior finish partitions, both existing and new, for renewal of the restroom finishes.

• The Scope of Work includes the full replacement of all lighting fixtures within the restroom with new LED fixtures, to meet current lighting standards.

• The Scope of Work includes the full replacement of showers with the restroom with new ABA/ADA compliant showers with new finishes.

• The Scope of Work includes limited replacement of fire sprinkler infrastructure, including sprinkler heads, as may be necessary to comply with life safety requirements of the reconfigured restroom.

New Janitor Closet 102

• A new Janitor Closet 102 is to be located on Level 01, as indicated in the project drawings, to replace a current Janitor Closet to be demolished.

• The current closet is being removed to accommodate expanded restroom facilities at this level to meet ADA/ABA accessibility standards.

• The new closet shall have a mop sink installed per requirements of building and plumbing

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• The new closet shall receive minimal finishes; for example, no finished ceiling shall be placed within the space.

• At the 65% Submission, this new Janitor Closet was shown to be located across the existing

Level 01 corridor and placed within an existing storage closet. After additional Site Investigation with the Project Mechanical/Plumbing Engineer, it was determined that inadequate space exists within the existing corridor ceiling plenum to route necessary exhaust ductwork back to an existing vertical service riser at the existing location of the Men’s Restroom and an IT Closet. Placing the closet within the reconstructed Women’s Restroom allows a more straightforward routing within plenums towards connection to the existing vertical service riser.

• Note: Janitor Closet was previously numbered Janitor Closet 104C; this number has been updated to Janitor Closet 102 based on its revised location.

Men’s Restroom and Showers 214

• The current restroom does not comply with ADA/ABA accessibility guidelines.

• The current restroom has outdated plumbing fixtures and finishes.

• The current restroom has an outdated unitary cabinet, with significant surface rust evident on the cabinet enclosure, caused by excessive moisture in the space.

• The Scope of Work includes full replacement of all plumbing fixtures (water closets and lavatories) with new water-efficient fixtures.

• The Scope of Work includes the demolition of certain existing interior finish partitions within this area, with limited new interior finish partitions located to conform with ADA/ABA requirements.

• The Scope of Work includes the removal of an existing unitary cabinet, and replacement with a new unitary cabinet and associated mechanical equipment within.

• The Scope of Work includes the full replacement of all flooring, ceilings, and interior finish partitions, both existing and new, for renewal of the restroom finishes.

• The Scope of Work includes the full replacement of all lighting fixtures within the restroom with new LED fixtures, to meet current lighting standards.

• The Scope of Work includes the full replacement of showers with the restroom with new ABA/ADA compliant showers with new finishes.

• The Scope of Work includes limited replacement of fire sprinkler infrastructure, including sprinkler heads, as may be necessary to comply with life safety requirements of the reconfigured restroom.

Women’s Restroom 215

• The current restroom does not comply with ADA/ABA accessibility guidelines.

• The current restroom has outdated plumbing fixtures and finishes.

• The current restroom has an outdated unitary cabinet, with significant surface rust evident on the cabinet enclosure, caused by excessive moisture in the space.

• The Scope of Work includes full replacement of all plumbing fixtures (water closets and lavatories) with new water-efficient fixtures.

• The Scope of Work includes the demolition of certain existing interior finish partitions

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2021.09.30 within this area, with limited new interior finish partitions located to conform with ADA/ABA requirements.

• The Scope of Work includes the removal of an existing unitary cabinet, and replacement with a new unitary cabinet and associated mechanical equipment within.

• The Scope of Work includes the full replacement of all flooring, ceilings, and interior finish partitions, both existing and new, for renewal of the restroom finishes.

• The Scope of Work includes the full replacement of all lighting fixtures within the restroom with new LED fixtures, to meet current lighting standards.

• The Scope of Work includes limited replacement of fire sprinkler infrastructure, including sprinkler heads, as may be necessary to comply with life safety requirements of the reconfigured restroom.

(Combined) Conference Room 203

• The Scope of Work includes combining Office 202 and Office 203 into a combined new

Conference Room 203. To combine the spaces, an existing finish partition dividing the rooms will be removed in its entirety, along with four closets associated with rooms 202 and 203.

• The Scope of Work shall include removal of all finish ceilings in these spaces, and the installation of a new ceiling system. Existing lighting fixtures will be removed, and three new lighting fixtures installed.

• Repair and Patch existing corridor finish partition to remain as needed where the dividing partition is removed.

All Spaces (Level 01 and 02)

• The current flooring throughout all existing spaces (Levels 01 and 02) is beyond its useful lifespan (see exceptions below). The law enforcement user groups within this building routinely utilize fingerprinting substances that have degraded the current finish flooring.

• The Scope of Work includes full replacement of all finished flooring throughout all spaces except for Level 01 and 02 corridors, Training Room 103, and Laundry 107. The flooring is to remain in those spaces.

Major Mechanical Equipment

• The current major mechanical equipment providing heating and cooling to the existing building is beyond its useful lifespan. The current equipment, and associated systems, do not meet modern standards for energy efficiency.

• The Scope of Work includes installation of a new cooling tower only, toward eventual replacement of all system components; although, at this time, the Scope of Work only includes the new cooling tower.

• The Scope of Work does not include any upgrades to heating infrastructure, other than limited replacement of a few unitary cabinets at all restrooms, as described above.

• The Scope of Work does not include replacement of any existing pipework associated with mechanical infrastructure, other than limited replacement of pipework and associated elements as may be necessary to install the limited number of unitary cabinets described above.

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Electrical Equipment

• The Scope of Work included the replacement of a single electrical panel, observed to be damaged and in need of replacement.

• Other than the panel described above, and LED lighting fixtures described above at all restrooms, no other electrical components will be replaced.

SPACES NOT INCLUDED IN THE SCOPE OF WORK (Laundry 107 / Closet 107A)

• The Scope of Work does NOT include the following spaces: Laundry 107 and Closet 107A.

These spaces remain accessible to remaining occupants throughout the Construction Phase Services for this project.

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FIRE PROTECTION / FIRE ALARM (FP&C)

Scope of Work Summary –

Modifications to the existing building sprinkler piping systems and fire alarm system in conjunction with the reconfiguration of the room spaces shown on the Contract Drawings.

The level of rehabilitation work under this project will be a modification based on the reconfiguration of the existing space. The existing means of egress for spaces outside of the areas of work will not be altered and will remain usable during this project.

Existing Facility Description Life Safety

• Building 104 – LETC is an approximately 2,800 square feet, two-story building of Type VB

(combustible) construction. The current use is a business occupancy. The building is fully sprinklered and is provided with a manual fire alarm system that monitors the automatic sprinkler system.

Occupant notification is provided with conventional horn/strobes which are located in the building corridors.

• The building egress arrangement for the First Floor consists of four exits to the exterior. The north exit is arranged with an accessible ramp as part of the means of egress. The south exit is also arranged with a ramp which is not compliant due to the steepness of the ramp slope.

• The building egress for the Second Floor consists of one interior exit stair enclosure which discharges to the exterior at grade. The north and south ends of the building center corridor are arranged with exit doors that discharge to open balconies. The egress to grade from both of these balconies is by means of fixed ladders. The single interior exit stair arrangement for the Second Floor is permitted by NFPA 101, 38.2.4.3 based on the total maximum path of travel for the Second Floor is under 100 feet to reach the exit stair discharge at grade.

Fire Alarm

• The existing fire alarm system provides compliant monitoring of the automatic sprinkler system and compliant locations for manual pull stations at each building and floor exit. Compliant audible/visible notification appliance coverage is provided in the building corridor system.

• Visible notification appliance coverage is not provided in the building's public restrooms.

• The existing building fire alarm control unit is an Edwards EST3 control unit.

• Based on the number of existing audible/visible notification appliances installed in the building and the capacity of the EST3 control unit is adequate for adding fire alarm strobes (4 strobe appliances) in the restrooms.

Automatic Sprinkler Protection

• The building is protected by a single-zone dry-pipe sprinkler system. Piping installed is Schedule 40.

Sprinklers installed in the pendent position are installed with return bends. It is estimated that this system has been in service for approximately 37 years. The system is arranged with a wall-mounted fire department connection which is marked with exterior signage.

• Sprinkler coverage is included in all closets.

• No deficiencies were noted regarding the condition of the automatic sprinkler system.

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HVAC / MECHANICAL (Insight Engineering) The existing mechanical systems for B104 include unitary water source heat pumps, exhaust fans, a dedicated ventilation air unit, steam fire heating water converter, building pumps, closed circuit cooling tower, piping, and accessories. All equipment with the exception of the ventilation air unit is well past its useful like as described in the TAB A – Investigative Services report. However, the budget limitations of this project limit the mechanical system scope to the replacement of the cooling tower and minor ductwork modifications as required to accommodate any new layout in the restrooms.

The existing closed-circuit cooling tower is monitored by the existing Siemens control system on campus.

The new installation will connect all control points from the new tower to the existing Siemens system for monitor and control.

The existing closed-circuit cooling tower is served by a Chem-Aqua water treatment system located in a nearby maintenance shed. The existing system will be replaced under this contract.

PLUMBING (Insight Engineering) The plumbing scope of work for this building consists of fixture replacement and associated piping modifications at the first and second-floor bathrooms reconfigurations. Existing fixtures will be demolished. New domestic water, sanitary, and vent piping will be connected to the existing piping in the immediate area. The piping is served by an existing electric water heater which will not be replaced under this scope of work.

LIGHTING SYSTEMS (Insight Engineering) New light fixtures with Light Emitting Diodes (LED) will be installed to suit the new layout of plumbing fixtures, powered by existing branch circuits to be reused. New light switches will also be relocated and installed, as necessary.

POWER SYSTEMS (Insight Engineering)

1) In the remodeled toilets, new GFCI receptacles will be installed to suit the new layout of plumbing fixtures. These new receptacles will be powered by existing branch circuits to be reused.

2) An existing panelboard will be replaced due to rust it has experienced.

3) The electrical loads of the new cooling tower system will be refed by the existing branch circuits one-for-one and load-by-load.

TELECOM, SECURITY, and DATA SYSTEMS (Insight Engineering)

• There is no anticipated telecom, security, and data scope for this project.

STRUCTURAL SYSTEMS (BernhardTME)

• The area of structural scope is to analyze stiffen existing framing where the Ricoh Pro C7200SL copier is located in room 105.

• Existing floor framing under the copier is wood framed with 2x10 @ 16” on center spanning 13’-6”.

The support for the wood 2x members is load-bearing walls on each end of the members.

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GENERAL SUMMARY OF OWNER’S PROJECT REQUIREMENTS

• Per the SOW document provided by your office on 2021.07.01, the preliminary SOW is as follows:

o Estimated construction contract price for the project: $550,000.00 o Period of Performance for the project: Finish date 9/30/2021 NTP + 87 days

[modified per VA to finish before the End of Fiscal Year] o Project Description:

2.1 This scope is a revision from the original scope of work.

2.2 Provide an Architectural/Engineering (A/E) design solution for the described scope of work through the preparation of design drawings and specifications for the renovations of Building 104 and HVAC system(s). Building 104 will provide LETC additional classrooms which shall include LETC specific “scenario” required training rooms.

2.3 The A/E will work with CAVHS staff, Engineering Staff, LETC staff, and other staff as required to collect all information required for design in accordance with the TIL, local, state, and federal building codes and standards for facility structure, design, workflow efficiency, security and improve the overall facility with the renovation of Building 104.

2.4 Renovations included in Building 104, also see Figures 1 and 2:

2.4.1 First floor, update bathrooms with new toilets, sinks, tile, and paint. Remove the showers and install new toilets. Install new LED lighting fixtures at new restrooms per minimum lighting density requirements. Also see FCA 344338 in table under 2.5.

Ensure restrooms are complainant with ADA/ABA requirements.

2.4.2 First floor, remove existing flooring and install new LVT flooring at all rooms and spaces.

2.4.3 Stiffen the existing framing to support the Ricoh Pro C27200SL copier located in room

105.

2.4.4 Second floor, update bathrooms with new toilets, sinks, showers, tile, and paint. Install wall in men’s bathroom between the showers and sinks and create an opening in women’s restroom to allow access to these showers. Install new LED lighting fixtures at new restrooms per minimum lighting density requirements. Also see FCA 344338 in table under 2.4. Ensure restrooms are complainant with ADA/ABA requirements.

2.4.5 Second floor, remove existing flooring and Install new LVT flooring in all rooms.

2.4.6 Remove the demising wall and two associated closets between rooms 202 and 203, finish to match.

2.4.7 See FCA 343967 from 2.5. Replace water damaged 225A, 208Y/120-volt panel.

2.4.8 See FCA 117919 from 2.5. Remove existing carpet and install new LVT in all 2nd floor rooms (including hallway) or an easy to clean type flooring for the “scenario” training rooms. Any existing carpet not addressed previously in this SOW shall be replaced.

2.4.9 A/E will conduct the following building and site surveys as required to meet all design requirements and ensure accurate specifications during the design process. This includes validating existing drawings and conducting” above the ceiling” observations to verify and validate existing conditions.

2.4.9.1 Asbestos survey. The A/E will review the existing asbestos survey (see attachment ii) and determine any additional locations required to be on the asbestos survey if any. Any construction in areas requiring abatement is identified on the survey. Asbestos abatement will follow Master Construction`s Section 02 82 13 from TIL local, state, and federal requirements.

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2.4.9.2 Electrical load survey. The A/E will determine the electrical load requirements through the design process. The listing of known electrical equipment is provided to assist the A/E to determine electrical requirements.

2.4.10 The A/E firm will develop architectural, electrical, mechanical, plumbing, and structural designs/drawings for the renovation of building 104. The mechanical scope will be limited to the installation of a new cooling tower.

2.4.11 The A/E shall conduct site/facility surveys as required to perform design, commissioning, and construction period services. A/E shall provide site/facility surveys for those portions specifically outlined for replacement in this Scope of Work. These are not all-inclusive of the survey requirements. A/E shall provide limited site/facility surveys as required for the installation of a new cooling tower.

2.4.12 Ensure fire protection system meets the VA Fire Protection Design Manual. Ensure if any design changes are required to the fire project system that the design change drawings are stamped by a Fire Protection Engineer certified in the state of Arkansas.

2.5 This project also will correct electrical deficiencies as identified in the 2015 VISN 16 Facility Condition Assessment (FCA), North Little Rock.

Item FCA Description for Building 104

1 117919 Replace carpet throughout.

2 343967 A 225A, 208Y/120-volt panel has water damage and needs to be replaced.

3 344338

PUBLIC RESTROOMS: Most of the restrooms have one or more non- ABASS compliant issues. Restrooms not required to be HC accessible are not listed (other compliant restrooms are nearby). For brevity, the following abbreviations are used: AccHi = Soap/towel dispensers mounted too high; relocate MirHi = The mirror is mounted too high;

provide new PI = Provide pipe insulation under the lav GB36 = A 36 in grab bar is req'd behind the toilet GB42 = A 42 in grab bar is req'd on 1 side of toilet NoSpc = There is not enough floor space in the room StlSpc = Not enough floor space in stall DrClr = Not enough clearance at door swings UrnHi = Urinal is mounted too high HCSign = Provide HC standard logo on room signage AmbStl = Parallel grab bars are required at all ambulatory stalls VABFDG = VA's Barrier-Free Design Guide (near) = No room number, it's near this room ------------------------------------------- ------- * 1st Floor Men: renovate 150 sf for compliance and finishes, remove 2 showers, widen door to 36 inches. * 1st Floor Women:

renovate 150 sf for compliance and finishes, remove 2 showers, widen door to 36 inches. * 2nd Floor Men: renovate 250 sf for compliance and finishes, remove 4 showers, widen door to 36 inches. * 2nd Floor Women: renovate 250 sf for compliance and finishes, remove 4 showers, widen door to 36 inches, and renovate into adjacent Housekeeping Closet 218 for additional space. * Replace 2 drinking fountains with ABAAS compliant.

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2.6 The Construction Phase Period of Performance to install the above Scope of Work shall be no more than six (6) consecutive months. Additionally, the majority of Building 104 will be unoccupied throughout the duration of the Construction Phase, except for a limited number of spaces on the First Floor. Limited spaces remaining operational to be confirmed by COR.

Additional Design Factors

Below are special conditions that have to be satisfied during the design and construction phases of the project by both the design team and the contractor:

• Provide design phase estimating per VA/TIL Cost Estimating Guidelines

• Project will require A/E services as follows:

o Tab A – Field Investigations o Part I – Design Phase Services (DPS) o Part II – Construction Phase Services (CPS) o Part III – Site Visits (CPS)

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CHAPTER 02

Architectural Design Overview The Architectural Scope of Work includes, but is not limited to, full replacement of all building restrooms and shower rooms, principally to conform to ADA/ABA accessibility requirements, and new flooring throughout all spaces.

Architectural Design by Room

Men’s Restroom and Showers 113

• The current restroom does not comply with ADA/ABA accessibility guidelines.

• The current restroom has outdated plumbing fixtures and finishes.

• The current restroom has an outdated unitary cabinet, with significant surface rust evident on the cabinet enclosure, caused by excessive moisture in the space.

• The Scope of Work includes full replacement of all plumbing fixtures (water closets and lavatories) with new water-efficient fixtures.

• The Scope of Work includes the demolition of certain existing interior finish partitions within this area, with limited new interior finish partitions located to conform with ADA/ABA requirements.

• The Scope of Work includes the removal of an existing unitary cabinet, and replacement with a new unitary cabinet and associated mechanical equipment within.

• The Scope of Work includes the full replacement of all flooring, ceilings, and interior finish partitions, both existing and new, for renewal of the restroom finishes.

• The Scope of Work includes the full replacement of all lighting fixtures within the restroom with new LED fixtures, to meet current lighting standards.

• The Scope of Work includes the full replacement of showers with the restroom with new ABA/ADA compliant showers with new finishes.

• The Scope of Work includes limited replacement of fire sprinkler infrastructure, including sprinkler heads, as may be necessary to comply with life safety requirements of the reconfigured restroom.

Women’s Restroom and Showers 114

• The current restroom does not comply with ADA/ABA accessibility guidelines.

• The current restroom has outdated plumbing fixtures and finishes.

• The current restroom has an outdated unitary cabinet, with significant surface rust evident on the cabinet enclosure, caused by excessive moisture in the space.

• The Scope of Work includes full replacement of all plumbing fixtures (water closets and lavatories) with new water-efficient fixtures.

• The Scope of Work includes the demolition of certain existing interior finish partitions within this area, with limited new interior finish partitions located to conform with ADA/ABA requirements.

• The Scope of Work includes the removal of an existing unitary cabinet, and replacement with a new unitary cabinet and associated mechanical equipment within.

• The Scope of Work includes the full replacement of all flooring, ceilings, and interior finish partitions, both existing and new, for renewal of the restroom finishes.

• The Scope of Work includes the full replacement of all lighting fixtures within the restroom with new LED fixtures, to meet current lighting standards.

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• The Scope of Work includes the full replacement of showers with the restroom with new ABA/ADA compliant showers with new finishes.

• The Scope of Work includes limited replacement of fire sprinkler infrastructure, including sprinkler heads, as may be necessary to comply with life safety requirements of the reconfigured restroom.

Men’s Restroom and Showers 214

• The current restroom does not comply with ADA/ABA accessibility guidelines.

• The current restroom has outdated plumbing fixtures and finishes.

• The current restroom has an outdated unitary cabinet, with significant surface rust evident on the cabinet enclosure, caused by excessive moisture in the space.

• The Scope of Work includes full replacement of all plumbing fixtures (water closets and lavatories) with new water-efficient fixtures.

• The Scope of Work includes the demolition of certain existing interior finish partitions within this area, with limited new interior finish partitions located to conform with ADA/ABA requirements.

• The Scope of Work includes the removal of an existing unitary cabinet, and replacement with a new unitary cabinet and associated mechanical equipment within.

• The Scope of Work includes the full replacement of all flooring, ceilings, and interior finish partitions, both existing and new, for renewal of the restroom finishes.

• The Scope of Work includes the full replacement of all lighting fixtures within the restroom with new LED fixtures, to meet current lighting standards.

• The Scope of Work includes the full replacement of showers with the restroom with new ABA/ADA compliant showers with new finishes.

• The Scope of Work includes limited replacement of fire sprinkler infrastructure, including sprinkler heads, as may be necessary to comply with life safety requirements of the reconfigured restroom.

Women’s Restroom 215

• The current restroom does not comply with ADA/ABA accessibility guidelines.

• The current restroom has outdated plumbing fixtures and finishes.

• The current restroom has an outdated unitary cabinet, with significant surface rust evident on the cabinet enclosure, caused by excessive moisture in the space.

• The Scope of Work includes full replacement of all plumbing fixtures (water closets and lavatories) with new water-efficient fixtures.

• The Scope of Work includes the demolition of certain existing interior finish partitions within this area, with limited new interior finish partitions located to conform with ADA/ABA requirements.

• The Scope of Work includes the removal of an existing unitary cabinet, and replacement with a new unitary cabinet and associated mechanical equipment within.

• The Scope of Work includes the full replacement of all flooring, ceilings and interior finish partitions, both existing and new, for renewal of the restroom finishes.

• The Scope of Work includes the full replacement of all lighting fixtures within the restroom with new LED fixtures, to meet current lighting standards.

• The Scope of Work includes limited replacement of fire sprinkler infrastructure, including sprinkler heads, as may be necessary to comply with life safety requirements of the reconfigured restroom.

(Combined) Conference Room 203

• The Scope of Work includes combining Office 202 and Office 203 into a combined new Conference

Room 203. To combine the spaces, an existing finish partition dividing the rooms will be removed in its entirety, along with two closets associated with this dividing wall.

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• The Scope of Work shall include removal of all finish ceilings in these spaces, and the installation of a new ceiling system. Existing lighting fixtures will be removed, and three new lighting fixtures installed.

• Repair and Patch existing corridor finish partition to remain as needed where the dividing partition is removed.

New Janitor Closet 102

• A new Janitor Closet 102 is to be located on Level 01, as indicated in the project drawings, to replace a current Janitor Closet to be demolished.

• The current closet is being removed to accommodate expanded restroom facilities at this level to meet ADA/ABA accessibility standards.

• The new closet shall have a mop sink installed per requirements of building and plumbing codes and best practices.

• The new closet shall receive minimal finishes; for example, no finished ceiling shall be placed within the space.

• At the 65% Submission, this new Janitor Closet was shown to be located across the existing

Level 01 corridor and placed within an existing storage closet. After additional Site Investigation with the Project Mechanical/Plumbing Engineer, it was determined that inadequate space exists within the existing corridor ceiling plenum to route necessary exhaust ductwork back to an existing vertical service riser at the existing location of the Men’s Restroom and an IT Closet. Placing the closet within the reconstructed Women’s Restroom allows a more straightforward routing within plenums towards connection to the existing vertical service riser.

• Note: Janitor Closet was previously numbered Janitor Closet 104C; this number has been updated to Janitor Closet 102 based on its revised location.

All Spaces (Level 01 and 02)

• The current flooring throughout all existing spaces (Levels 01 and 02) is beyond its useful lifespan.

The law enforcement user groups within this building routinely utilize fingerprinting substances that have degraded the current finish flooring.

• The Scope of Work includes full replacement of all finished flooring throughout all spaces except for Level 01 and 02 corridors, Training Room 103, and Laundry 107. The flooring is to remain in those spaces.

Exterior Work

• There will be no exterior architectural work in this project, except for the new cooling tower described within the applicable mechanical scope.

Interior Design All interior finishes will be selected in accordance with the VA TIL.

Infection Control The JohnsonDanforth Team will generate an Infection Control Plan with the support of the consultant team and CAVHS staff. This will be provided during the 65% submission phase.

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The JohnsonDanforth Team uses these same design approaches for all projects to ensure every project is delivered on time and on budget. Our approach includes the following:

Planning and Programming.

• www.cfm.va.gov and TIL contents will be utilized.

• Integrated discipline design charrette.

• Detailed fieldwork to verify as-built drawings and existing field conditions.

A Five-Step Document Delivery Process.

• Creation of Basis of Design by the consolidated team and submitted to the client for approval.

• Integrated design review and development with the client.

• Delivery schedule and documentation requirements developed with the client.

• Strict QA/QC program to ensure the highest quality documents possible.

• In-house construction professionals provide constructability and bid ability review.

Building Information Modeling (BIM) Model.

Detailed construction cost estimate.

The Johnson Danforth Team’s design approach is holistic, addressing the VA and user group needs while planning the work at the site for construction of the project to eliminate or minimize the impact on existing facility operations during both design and construction. This overall approach will be tailored to the specific project scope of work assigned to the design team and will be conducted throughout by our Discipline Leaders and design professionals. Our design team will continuously review the work for budget control, constructability, and quality control/quality assurance of documents, as well as to conduct and lead all field investigations and site analysis of as-built conditions.

Codes and Standards – The following design criteria shall be applied to the B104 Renovations International Building Code 2018 NFPA 101 Life Safety Code 2021 H-08-13, Environmental checklist for Barrier-Free Design PG-18-1 Master Construction Specifications PG-18-4 Standard Details and CAD Standards/VA BIOM Guide Commissioning Guidelines PG-18-13 Barrier-Free Design Guide PG-18-14 Room Finishes, Door and Hardware Schedules PG-18-15 Design Submission Instructions Physical Security Design Manual https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.cfm.va.gov&data=01%7C01%7Canne.brooks%40mottmac.com%7Cce5d654344ae4216c7aa08d589c5b128%7Ca2bed0c459574f73b0c2a811407590fb%7C0&sdata=GjKLgLd7mLhOY6HsCltiVp9R%2BbmRYx9qL4EBPOMjR%2F4%3D&reserved=0

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CHAPTER 03

Fire Protection Design Summary of Work

The primary fire and life safety codes and standards for this project are as follows:

• VA Fire Protection Design Manual – Eighth Edition

• NFPA 101, Life Safety Code, 2021 Edition

• NFPA 13, Standard for the Installation of Sprinkler Systems, 2019 Edition

• NFPA 70, National Electric Code, 2020 Edition

• NFPA 72, National Fire Alarm and Signaling Code, 2019 Edition

• NFPA 90A, Standard for the Installation of Air-conditioning and Ventilating Systems, 2021 Edition

Life Safety

• No corrections for egress are required in relation to the scope of this work.

Fire Alarm

• The First Floor and the Second-Floor restrooms are public and common-use spaces. Visible fire alarm appliance

(strobe) coverage is required for these spaces for compliance with NFPA 72 and equivalent facilitation for accessibility. New ceiling-mounted fire alarm strobes are specified for each restroom (4 strobes total).

• It is understood that use of the new enlarged Second Floor Room 203 may be used for a meeting room. The area of this new room is approximately 300 square feet. The VA Fire Protection Design Manual does not require strobe notification appliances in employee meeting rooms less than 750 square feet.

• The Second Floor Guest Rooms are sleeping spaces. Fire alarm system smoke detectors are installed in each room. At least one of these spaces is required to be provided with a visible fire alarm notification (strobe coverage) for equivalent facilitation. One new ceiling strobe appliance is being shown to be added in Room 217.

• The existing fire alarm notification appliance circuits will be modified to connect the new appliances. The fire alarm contractor will be directed to verify that existing strobe circuits can be modified by adding new restroom strobes, or if a new strobe power supply unit will be required. A discussion with the facility fire alarm maintenance contact indicated that existing fire alarm notification appliance circuits can be modified without the need for an additional power supply.

Sprinklers

• Existing sprinklers will be removed which are located inside of room closet spaces scheduled to be demolished.

The 1-inch sprinkler branch connected to the sprinklers to be removed will be specified to be deleted back to the sprinkler cross main located in the adjacent corridor. A threaded plug will be specified to be installed at the remaining threaded branch outlet.

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Typical 1-Inch Sprinkler Branch to Closet Sprinkler to be Removed

• The existing single sprinkler in each room where closets are demolished are located for compliant coverage of the entire room, including the floor space that will be added when the closets are demolished, based on the NFPA 13 coverage for rooms less than 800 square feet. No location change is needed for the remaining room sprinklers.

• The locations of existing sprinklers located in Rooms 202 and 203 will provide adequate coverage and maintain compliant spacing with NFPA 15 with the removal of the existing wall dividing these rooms. Existing sprinklers are specified to remain in the existing locations.

• Several room sprinklers were noted to have the sprinkler escutcheon missing. The sprinkler scope of work includes a requirement to make any required adjustments and add install missing escutcheons to remaining room sprinklers which are correctly installed.

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CHAPTER 04

PLUMBING

General Requirements

The plumbing systems for this project will comply with national codes and/or VA TIL design standards, codes, and guidelines -whichever is most stringent. Additional requirements requested from project stakeholders will be incorporated where feasible within the project budget only upon written documentation and written of the project COR. Applicable Guidelines, Codes, and Standards are identified in the Design Criteria portion of this document.

Submittals will be required in accordance with Section 01 33 23 Shop Drawings, Product Data, and Samples.

As-Built drawings will be provided by the installing contractor in the most recent Auto-Cad version. Certification documentation will be provided by the installing contractor prior to submitting the request for a final inspection.

All plumbing valves, excluding fixture stops, shall be provided with valve tags. The valve will be identified in accordance with the existing scheme of the facility. A complete updated valve tag list will be provided by the installing contractor along with a detailed plan for the area of construction indicating the location and valve number for each valve.

Firestopping will be installed per Section 07 84 00, Firestopping.

Valves

Isolation valves will be provided at all major branches and runouts to plumbing fixtures. Valves will be installed in accessible locations above ceilings.

Isolation valve 2” and smaller will be ball type. Isolation valves 2” and larger will be butterfly type.

Plumbing Insulation

Domestic cold water, domestic hot water, and domestic hot water return piping will be insulated with fiberglass piping insulation.

Facility Water Distribution

The existing domestic cold water, hot water, and hot water return piping is located in the crawl space and up through the existing walls.

New distribution piping will be routed above ceilings at the first and second floor to new fixture locations.

Isolation valves will be installed at each fixture group in an accessible location.

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Domestic cold water, hot water, and hot water return piping will be Type L copper with wrought copper fittings and lead-free solder. Pressed joints will be wrought copper with EPDM-rubber, O-ring seal on each end.

Facility Sanitary and Vent Piping

Existing sanitary piping is routed in the crawl space and first-floor ceiling space. Plumbing fixture and drain locations will be significantly altered during this renovation.

Vent piping from new fixtures will be routed from new locations and connect with the existing vent located above ceiling.

Sanitary and vent piping will be cast iron with no-hub fittings.

Plumbing Fixtures

Plumbing fixtures will be heavy-duty commercial type.

Water closets will be vitreous china, floor mounted with rear outlet. Water closets will be American Standard or approved equal. Flush valves will be hard-wired sensor type.

Lavatories will be wall-mounted with carriers or solid surface integral bowl. Lavatory trim will be ADA compliant.

Faucets will be hard-wired sensor-operated type. Lavatories and faucets will be Sloan or approved equal.

Floor drains will cast iron with brass strainers. Floor drains will include trap primers or trap guard seal devices.

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CHAPTER 05

Mechanical Design Codes and Standards Mechanical systems will be installed in accordance with criteria from the following documents:

• VA Design Manuals, Standards, Criteria, and Space Requirements are provided on the VA TIL site. This includes the following but is not limited to this list and the latest guidelines at contract award hold precedence over dated information in this supplement.

o PG-18-3 Design and Construction Procedures o PG-18-4 VA Standard Details o PG-18-10 HVAC Design Manual o ES-2019-001 Cooling Tower Water Systems o H-18-8 Earthquake Resistant Design Requirements for VAMC Facilities

Specific design elements that deviate from these guidelines due to existing conditions or guidance from CAVHS are identified in this narrative.

• International Building Code

• NFPA 101 Life Safety Code

• Occupational, Safety and Health Administration (OSHA) Standards

• Energy Policy Act of 2005 (EPAct)

• ASME Code for Pressure Piping

General Requirements The Contractor will be required to comply with the general specification requirements listed below:

• The Contractor will submit product information documents including performance data, specifications, dimensions, and shop drawings for review and approval in accordance with Division 0.

• The Contractor will warrant the work to be free of defects for a period of one year after the date of Substantial Completion.

• The Contractor will provide training and operator and maintenance manuals to the Owner in accordance with Division 0.

• All piping will be identified in accordance with the VA Design Specifications using a standard color scheme with labels and flow arrows. All valves will be identified with valve tags in accordance with the existing tagging nomenclature at the facility. A complete updated valve schedule will be provided.

• All equipment will be identified with nameplates in accordance with the VA Design Specifications.

Cooling Tower Replacement

The project will include the demolition of the existing cooling tower.

Existing heat pump loop piping shall be replaced from the existing isolation valves to the cooling tower.

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Existing makeup water line shall be replaced from the existing isolation valve to the cooling tower. A new make-up water meter with local display and BAS connection shall be installed. Meter shall be piped in parallel with a bypass line for service of meter.

Existing drain and overflow piping shall be reconnected to the lines serving the existing tower.

The cooling tower will be of the closed-circuit type. The tower will be sized for 100 gpm, entering water temperature 100 deg. F, leaving water temperature 90 deg. F, and design wet bulb 80 deg. F.

The maximum fluid pressure drop shall be 15 feet.

The cooling tower will have the following characteristics:

• One (1) 7.5 HP fan motor: Totally Enclosed Air Over (TEAO), 1 Speed / 1 Winding – Premium

Efficiency (Inverter Duty), 208 V / 3 phase / 60 Hz, and Space Heater with Shaft Grounding Ring.

• One (1) 0.50 HP pump motors: Totally Enclosed Fan Cooled (TEFC) 1 speed / 1 Winding – Energy Efficient, 208 V / 3 phase / 60 Hz

• One (1) close coupled, bronze fitted pump with mechanical seals. Manual Valves for manual switch over and pump isolation

• CTI Certified Thermal Performance in accordance with STD-201 RS

• Welded Stainless-Steel Construction in Basin Water – Contacted Areas, G-235 Galvanized

Steel Elsewhere

• Standard Fan

• Galvanized Steel Fan Guard

• PVC Fill & Drift Eliminators

• Galvanized Steel, Full Circuit Coil

• Structure Designed in accordance with IBC and ASCE/SEI 7

• Redundant Pump System with Standard Make-Up, Drain and Overflow Connections

• Schedule 40 PVC Spray Branches

• Mechanical Float Valve Assembly

• Electric Immersion Heaters Sized to Maintain +40 deg. F water at 0 def. F ambient

• Copper Heater Elements

• Electric Immersion Heater Controls

• Mechanical Vibration Cutout Switch in NEMA 4X enclosure

• External Maintenance Platform with Safety Gate and Ladder Located on Louver Face of Unit meeting OSHA requirements.

• Internal Maintenance Walkway and Ladder

The basis of design for the Cooling Towers will be BAC. A preliminary cut sheet of the equipment is provided in the Appendices – Cut Sheets.

Isolation valves smaller than 3” will be of the ball type. Isolation valves that are 3” and 4” in size will be of the gate type. Isolation valves larger than 4” will be of the butterfly type with gear operators.

The cooling tower and heat pump loop piping will be braced and supported in accordance with seismic requirements.

Restroom Renovations The project will include the modification of existing exhaust ductwork serving the existing

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The restrooms are served by unitary water source heat pumps. The units are in poor condition and/or not adequately sized for the new floor plan configuration. Four new WSHP’s will be installed to serve the new spaces. Each WSHP will be connected to the nearest supply and return piping located in the crawl space or above the ceiling.

Heat Pump Loop piping will be Schedule 40 black steel with 150 lb. welded connections. Heat Pump Loop piping will be sized to provide a maximum fluid velocity of 10.0 fps and a maximum pressure drop of 4.0 ft. WG per 100 feet of pipe.

Testing, Adjusting, and Balancing Testing and balancing will be performed by AABC or NEBB certified technicians. All water and airflow rates will be adjusted to the specified levels.

HVAC Insulation Concealed supply ducts will be insulated with fiberglass duct wrap.

All insulation will comply with minimum thickness and resistance value requirements stipulated in the VA TIL.

Dire…