Attachment 3 Design Narrative_Final with Cover Page.pdf

Long Beach VA: Site Prep for Hemodialysis VA PROJECT #: 600-23-111

100% Design Narrative

Site Prep for Hemodialysis

Long Beach, California

Project# 600-23-111

100% Construction Documents Submission

February 16, 2024

Table of Contents 95% Design Narrative

Design Standards and Phasing

1.1.1 Project Description

1.1.2 Initial Site Investigation

1.1.3 Codes, Standards, and References

1.1.4 Design, Standards, and Recommendations

1.1.5 Construction Schedules, Phases, and Off-Hours

1.1.6 Environmental Conditions and Outline Specifications

Structural Systems

1.1.7 Interior Walls

1.1.8 Equipment Bracing

1.1.9 Floor Loading

1.1.10 Existing Structure

Mechanical and Plumbing Systems

1.1.11 Mechanical

1.1.12 Plumbing

Electrical Systems

1.1.13 Lighting

1.1.14 Power and Receptacles

1.1.15 Grounding System

Design Standards and Phasing

1.1.1 Project Description

▪ VA Long Beach Healthcare System (VALBHS) Hemodialysis Unit currently operates a 15 bed Hemodialysis program, 6 days per week and serves 110 patients. The current Reverse Osmosis (RO) water system does not meet the hospital policies and standards for water quality. The existing pipes are deteriorating due the age of the system.

Constant repairs have been directly impacting patient care in the area directly below the Hemodialysis floor due to pipe leaks adding to the hospital maintenance and operational Fees.

▪ This project will replace the existing Reverse Osmosis (RO) system water system located in Building 126 3rd floor which servers the Hemodialysis center located on the 9th floor of building 126 with new state of art RO water system to meet VA standards. The project includes replacement of existing pipes, HVAC system, Electrical system, and complete renovation of the 270-sf. space.

1.1.2 Site Investigation

1. 3rd Floor Investigation:

a. Existing access path over roof needs protection during construction, and new roof pads at end of work. The team also noted an existing drop/step inside the door to the equipment room and a curb at the far side.

b. Photos were taken of existing conditions and equipment.

c. Door and frame to equipment room is rusted at the base.

2. 9th Floor Investigation

a. The existing chemical treatment function needs to remain, including: 4 circular drums 2’dia., 36”H; Container shelving 18” deep x 9’LF; Solution bay large enough to handle a single drum, preferably without curbs.

b. The space between W932C and W932D can be used for the new layout.

Relocating the chemical treatment drums, shelves, and new solution bay. Containment of the construction area must be maintained.

c. Structural analysis is needed for new equipment layout.

d. MEP analysis of the ceiling space is needed once the layout is confirmed.

3. Infrastructure

a. The existing electrical rooms and panels were determined to not have capacity for the new emergency power load. A new feed from the basement, Electrical Room 27, will be needed. A direct vertical supply is possible below Room W923A.

b. The Water Loop connections above the ceiling were reviewed. It appears that the new system can be installed and connected above the ceilings, so that the walls in the patients spaces will not require modifications.

1.1.3 Codes, Standards, and References

▪ International Building Code (IBC)

▪ International Mechanical Code (IMC)

▪ ADA – American Disabilities Act

▪ ASHRAE Standard 62.1 - Ventilation for Acceptable Indoor Air Quality

▪ ASHRAE Standard 90.1 - Energy Standard for Buildings Except for Low-Rise Residential Buildings

▪ ASHRAE Standard 170 – Ventilation of Health Care Facilities

▪ ASHRAE Handbook of Fundamentals

▪ ASME A17.1 – Safety Code for Elevators and Escalators

▪ NEC – National Electric Code

▪ NFPA – National Fire Protection Association

▪ SMACNA, Seismic Restraint Manual Guidelines for Mechanical Systems

▪ National Uniform Seismic Installation Guidelines (AEIC Edition)

▪ OSHA – Occupational Safety and Health Administration

▪ UL – Underwriters Laboratories

▪ VA HVAC Design Manual (Rev. March 1, 2020)

1.1.4 Design Description, TIL Standards, and Recommendations

Design Description: The existing dialysate prep equipment are moved away from the elevator to be accessed directly from the Dialysis suite, and a new fill station sink and eye-wash will be provided. The room is expanded to the west to accommodate the new RO Prep equipment.

The 3rd floor equipment room will be decommissioned and renovated as a storage room once the new systems are fully operational. Office 831 on the 8th floor below the new Dialysate room will need to be access or closed off during construction to perform work above the ceiling.

VA TIL Design Standard-CDL73: Dialysate Preparation Room, Dlsys Ctr. Room design standards include:

- Room Size: 150SF; Door:36”

- Materials: none specified

- HVAC: none specified

- Electrical: none specified

- Plumbing: none specified.

VA TIL Design Standard-CDL81: Water Treatment Room, Dlsys Ctr. Room design standards include:

- Room Size: 200SF; Door:36”

- Materials: Ceiling-AT; Wall-GWB; Wall finish-PT;

- HVAC: none specified

- Electrical: Lighting Level-500;

- Plumbing: Gases and water supplies – none specified.

VA CH316: Dialysis Center: Key design recommendations:

- Dialysate Preparation Room, Dlsys Ctr (CDL73) ..........................150 NSF (14.0 NSM)

a. Provide one if [number of Dialysis Stations] is between 1 and 10

b. Provide one at 200 NSF if [number of Dialysis Stations] is between 11 and 22

- Water Treatment Room, Dlsys Ctr (CDL81).................................200 NSF (18.6 NSM)

a. Provide one if [number of Dialysis Stations] is between 1 and 10

b. Provide one at 240 NSF if [number of Dialysis Stations] is between 11 and 22 This room accommodates the equipment and supplies, including consumable products, for all dialysis-required forms of water treatment.

1.1.5 Construction Schedules, Phases, and Off-Hours

Construction Scheduling:

Construction Schedules will be determined by the selected General Contractor performing construction. Phased construction areas will be indicated in the drawings as a basis for the General Contractors to establish detailed sequencing. Additional steps include:

- Coordinate with 8th floor office 831 as needed for construction access. Confirm function of those offices and best way to proceed for scope of work.

- Load monitoring has been conducted. Review of the existing systems as well as the load monitoring report indicates there is sufficient power infrastructure to support the new equipment on the 9th floor.

- See attached Infrastructure Requirements from B-Braun.

Phasing:

- Phase 1:

- Work will include building a temporary construction partition and door between the expanded room area and for the additional electrical room, requiring section isolation shutoff while work is performed.

- Phase 2:

- Core Drill and installation of the new water line from the 3rd floor is to be completed during phase 2. Ceiling tiles along the path of the new water line to be removed while the line is installed to the new Dialsate Preparation Room.

- Ceiling tile is to be removed along the path of the new RO loop. The contractor is to install the new RO loop above ceiling.

- Phase 3:

- All dialysate acid drums to be relocated to the west side of the renovated space.

- The eastern portion of the Dialsate Preparation Room is to be emptied and demolished as required to prepare for the new RO equipment. Once the eastern side is done, the temporary wall separating the west and east portion of the room is tom come down.

- Existing dialysate drums to be relocated to their final location.

- New RO equipment to be installed and connected to new RO loop.

- Confirm operability of all new equipment.

- The migration from the old RO loop to new beings in 2 station subphases.

- Phase 4:

- Demolition of existing RO equipment sans the 250 gallon tank and booster pumps on the 3rd floor.

- All roof pads, new ramps, and doors are to be installed for the 3rd floor accessway.

- All pre-existing RO loop piping on the 9th floor to be removed.

Off-hours and noisy construction requirements:

Noisy construction work is only allowed from 5:30am to 9:30am in building 126.

Coordination with the COR is needed when work such as core drilling is needed especially when it affects other floors in order to notify staff.

All work outside room 932d and mech-1, especially scope in patient and staff areas must be completed outside of hospital operations. This is especially critical for the MEP infrastructure and the RO loop above the ceiling.

The 9th Floor Hemodialysis Suite Operates 6 days a week, and any disruption of the daily healthcare operations must be planned and coordinated with the VA ahead of time. Due to the VA’s desire to continue the current operation schedule for the Dialysis Suite, “off-hours” are highly recommended. Although this will generally cause longer construction time, it will have less impact on the healthcare operations.

1.1.6 Environmental Conditions and Outline Specifications

Anticipated Specifications are outlined below. As the Design develops in future phases we may add or remove sections as needed.

Due to the age of the building, we plan to specify Hazardous materials testing and abatement procedures.

Please note that the building standard finishes sent by the VA did not include a resinous flooring which is recommended to withstand the salt/chemicals in the water treatment and dialysate rooms. We will work with the VA to select a material that works for the project.

SECTION NO. DIVISION AND SECTION TITLES DATE

DIVISION 00 - SPECIAL SECTIONS

00 01 15 List of Drawing Sheets 05-20

DIVISION 01 - GENERAL REQUIREMENTS

01 00 00 General Requirements 11-21

01 32 16.15 Project Schedules (Small Projects – Design/Bid/Build 11-21

01 33 23 Shop Drawings, Product Data, and Samples 02-23

01 35 26 Safety Requirements 10-22

01 42 19 Reference Standards 11-20

01 45 00 Quality Control 02-21

01 45 35 Special Inspections 06-21

01 57 19 Temporary Environmental Controls 01-21

01 58 16 Temporary Interior Signage 07-15

01 74 19 Construction Waste Management 04-22

01 91 00 General Commissioning Requirements 04-22

DIVISION 02 – EXISTING CONDITIONS

02 82 11 Traditional Asbestos Abatement 01-21

02 83 33.13 Lead-Based Paint Removal and Disposal 01-21

DIVISION 05 – METALS

05 12 00 Structural Steel Framing 11-18

05 40 00 Cold-Formed Metal Framing 01-21

05 50 00 Metal Fabrications 08-18

DIVISION 07 - THERMAL AND MOISTURE PROTECTION

07 12 00 Built-Up Bituminous Waterproofing 01-21

07 71 00 Roof Specialties 01-21

07 84 00 Firestopping 01-21

DIVISION 08 - OPENINGS

08 11 13 Hollow Metal Doors and Frames 01-21

08 71 00 Door Hardware 05-22

DIVISION 09 – FINISHES

09 05 16 Subsurface Preparation for Floor Finishes 01-21

09 06 00 Schedule for Finishes 01-21

09 22 16 Non-Structural Metal Framing 06-18

09 23 00 Gypsum Plastering 01-21

09 29 00 Gypsum Board 04-20

09 51 00 Acoustical Ceilings 12-18

09 67 23.20 Resinous Epoxy Base With Vinyl Chip Broadcast (RES 2) 12-21

09.67.23.40 Resinous Poured In Place Resilient Flooring (RES-4) 01-21

DIVISION 10 – SPECIALTIES

10 14 00 Signage 01-21

10 26 00 Wall and Door Protection 01-21

10 44 13 Fire Extinguisher Cabinets 08-18

DIVISION 11 – EQUIPMENT

11 79 13 Hydrotherapy Equipment 01-21

DIVISION 21- FIRE SUPPRESSION

21 08 00 Commissioning of Fire Suppression System 11-16

21 13 13 Wet-Pipe Sprinkler Systems 06-15

DIVISION 22 – PLUMBING

22 05 11 Common Work Results for Plumbing 01-23

22 05 12 General Motor Requirements for Plumbing Equipment 09-20

22 05 23 General-Duty Valves for Plumbing Piping 09-20

22 07 11 Plumbing Insulation 09-19

22 08 00 Commissioning of Plumbing Systems 11-16

22 13 00 Facility Sanitary and Vent Piping 09-20

22 40 00 Plumbing Fixtures 12-22

22 67 19.16 Reverse-Osmosis Water Equipment 09-15

DIVISION 23 – HEATING, VENTILATING, AND AIR CONDITIONING

(HVAC)

23 05 11 Common Work Results for HVAC 03-23

23 05 41 Noise and Vibration Control for HVAC Piping and Equipment 03-23

23 05 93 Testing, Adjusting, and Balancing for HVAC 03-23

23 08 00 Commissioning of HVAC Systems 03-23

23 09 23 Direct-Digital Control System for HVAC 03-23

23 37 00 Air Outlets and Inlets 03-23

DIVISION 25 – INTEGRATED AUTOMATION

25 10 10 Advanced Utility Metering System 02-10

DIVISION 26 – ELECTRICAL

26 05 11 Requirements for Electrical Installations 11-22

26 05 19 Low-Voltage Electrical Power Conductors and Cables 11-22

26 05 26 Grounding and Bonding for Electrical Systems 11-22

26 05 33 Raceway and Boxes for Electrical Systems 11-22

26 22 00 Low-Voltage Transformers 11-22

26 24 16 Panelboards 11-22

26 27 26 Wiring Devices 11-22

26 51 00 Interior Lighting 11-22

Structural Systems

1.1.7 Interior Walls

Demolition of existing interior walls will be included as a part of this project. The walls span from floor to underside of structure above or to above ceiling with bracing to structure above. Removal of the partition walls will not affect the overall structure.

New interior non-loadbearing light gage partition walls are included in the scope of work, the existing light gage partition walls to remain will require strengthening/reinforcing via additional stud installations, connections, strapping/blocking, and other accessories as shown in the light gage framing details in order to properly brace floor and wall mounted equipment being installed in this scope of work.

1.1.8 Equipment Bracing

The liquid storage tanks, liquid storage barrels, piping and other systems require seismic bracing due to the seismic criteria and risk category of this occupancy causing the seismic design category to be such that non-structural component bracing is required by ASCE 7, OSHPD, and the VA H-18-8 Seismic Design Guide.

The RO supplier has provided weights, sizes and centers of gravity for all significant equipment being installed. This information is used for the design of bracing and anchorage systems.

1.1.9 Floor Loading

Structural Analysis is included in the design scope of work to verify acceptability of placement of the equipment and storage system components that are being installed as a part of the overall RO system. A distributed load approach as well as a specific equipment weight and location approach has been performed and will not require any additional support for the new equipment.

1.1.10 Existing Structure

The existing structure is a reinforced concrete two-way flat slab floor system with thickened slab areas around high shear locations at loadbearing concrete columns.

A conditional analysis has been performed to determine suitability for project installations in conjunction with structural loadbearing numerical analysis for gravity and lateral loading of the new equipment installations.

The existing structure was verified via as-built drawings and on site investigations.

Information gathered from the site, equipment manufacturers, engineers, and architects were used to verify the viability of the installation of the new RO loop for a Risk IV building. The proposed design meets all the seismic requirements of ASCE7- 16.

Mechanical and Plumbing Systems

1.1.11 Mechanical

Airside System:

New ductwork to be included in our design. The new duct has been sized to meet the load requirements of the new space configuration. The existing systems has been analyzed and deemed sufficient for the renovated space. A load calculation has been done utilizing Trace 3D+ and an associated system report is provided in the appendix.

The mechanical design will adhere to room data sheet requirements due to the more stringent CFM air requirements as compared to the mechanical load calculation.

The existing system was deemed sufficient after multiple site visits to verify existing duct mains serving space and overall operability. The system was noted as providing conditioned air within the proposed new RO equipment room.

When calculating the load requirements of the new space, lighting values were assumed based on proposed lighting. Equipment heat rejection was used. There was no heat rejection from people based on the occupancy type of the room. These inputs were used to come to the conclusion that approximately 147 CFM of conditioned air will be sufficient to condition the room. This value, when compared to the room data sheet, is larger than the data sheet’s required 140 CFM.

1.1.12 Plumbing

Reverse Osmosis (RO) System:

Existing RO system and associated piping on the 3rd floor sans the storage tank and booster pump to be demo’d and a new RO system to be installed on the 9th floor. A new RO loop to be installed to replace the existing.

The existing system was verified via both existing as-built drawings and site visits. The domestic water line serving the existing RO system is to be routed up to 9th floor to serve the new RO system. The new RO line will require both a domestic cold and domestic hot water connection, both at 3/4”.

Domestic Water:

Domestic hot and cool water systems to be demo’d back to main and a new line will be provided to serve new sink.

Existing systems were verified through a combination of site visits and existing as-built drawings. A lot of plumbing piping is located behind inaccessible walls and ceilings but assumptions can be drawn based on the locations of plumbing fixtures in the space. In addition to the domestic water line coming up from the 3rd floor to the 9th floor, a backup line will be installed utilizing existing domestic water lines already on the 9th floor.

Sanitary and Vent:

New sanitary floor drain to be added and connected back to main on the 9th floor. New sanitary and vent to be added for new sink.

Existing sanitary and vent systems were verified via floor drain and fixture locations and as-built drawings. Existing lines will be utilized for new fixtures to connect to.

Electrical Systems

1.1.13 Lighting

New energy efficient LED light fixtures shall be included with our design, the light fixtures shall be controlled via local light switches within the space.

New light fixtures information are listed on light fixture schedule and light fixture cut sheets are indicated as well.

Power for light fixtures shall be obtained from existing local normal electrical panels within space.

1.1.14 Power and Receptacles

General purpose receptacles and receptacles required for reverse osmosis equipment are included in our design, they are connected to existing local electrical panels within the space as well as new electrical panels installed on ninth floor.

Electrical requirements for reverse osmosis equipment is based on vendor drawing

Paradigm received, power for this equipment shall be obtained from new electrical panels and transformer for both 120-208 volts, 3-phase, and 277/480 volts, 3-phase.

New conduit and feeder conductors shall be routed from basement distribution panelboard “CEM” up to ninth floor. Each floor penetration shall have UL fire stop / fire sealing. Each floor penetration shall be x-rayed by contractor to ensure no structural members are affected in core drilling through floor.

Distribution panelboard “CEM” shall be load monitored for (30) days continuously per

NEC article 220.87, the load monitoring shall take place prior to issuing Bid Documents, the results of the load monitoring will be included in Bid Documents. Load monitoring was retrieved on March 16, 2023. The highest measured load for the three months proceeding the retrieval was 323.5 amps. When the full capacity for the proposed new panelboard “9EXE” is factored in, the maximum amps is 423.5 amps. This is within the threshold rating of 800 amps of the ATS “CEATS” located in the basement.

Our drawings indicate homeruns and general conduit routing information. The exact routing paths of branch circuits and feeder conductors shall be the sole responsibility of the contractor and shall be determined at site.

1.1.15 Grounding System

Equipment grounding shall be provided per article 250 of NEC (National Electric Code).