31
PHASE 5: Final Design Narrative

PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

  • Upload
    others

  • View
    1

  • Download
    0

Embed Size (px)

Citation preview

Page 1: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

PHASE 5:Final Design Narrative

Page 2: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Berkeley Warm Water Pool Study Berkeley, California

SITE PLANNING The project study site is at the intersection of Bancroft Way and Milvia Street – the northern third of the existing BUSD parking lot / tennis courts. It is one block west of Shattuck Avenue, a major transit artery. AC Transit and UC Perimeter bus routes are located at Shattuck and Bancroft. In addition the Downtown Berkeley BART Station is located three blocks north on Shattuck Avenue. Milvia Street is a ‘Bicycle Boulevard’. The Berkeley Civic Center Landmark District is two blocks north of the project site along Milvia Street. The Central Berkeley YMCA is two blocks north. Directly across Bancroft Way to the north are a new small hotel and a large multi-unit housing complex (Library Gardens). The Berkeley High School campus is directly across the street to the west, stretching from two blocks south of the project site to two blocks north. The remainder of the existing Berkeley High School surface parking lot abuts the project site to the south.

For the purposes of testing the site for program fit and for development of a project budget, a site planning strategy was adopted that addresses three conceptual goals:

Placement of the building entry on Milvia Street takes advantage of the street’s civic character; and utilizes the public sidewalk connecting to the parking lot to the south and anyone arriving on foot from mass transit or other parking places to the north and along Bancroft Way.

Placement of the high volume of the pool space on the north (Bancroft) side of the site to serve as a visual marker of the building from both Milvia Street and Shattuck Avenue.

Position the pool mechanical and storage room between the pool space and the abutting surface parking lot to the south for convenient service access from an easement across the surface lot or through a possible future parking structure.

MASSING The building program invites massing into three distinct volumes:

The volume housing the pool slopes up from 18’ to 30’ on the north side of the site. This helps that volume relate to the massing of the multi-story housing development directly across Bancroft Way. The south facing slope also provides an ideal location for solar collectors.

The entrance and locker room volume addresses Milvia Street and has a tall parapet on top of the one story program to present a corner presence that is in scale with the buildings directly across the streets to the west and north. The parapet also serves to screen mechanical

Prepared by ELS Architecture and Urban Design

18 September, 2007

Page 3: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Berkeley Warm Water Pool Study Berkeley, California

equipment on the roof. The building “front door” and signage could occur on the Milvia side of this volume.

The pool mechanical and storage spaces are housed in aone story volume between the high pool volume from a future parking structure. This insures that sunlight will strike the pool volume solar roof panels.

Prepared by ELS Architecture and Urban Design

18 September, 2007

Page 4: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

WARM WATER POOL GENERAL DESCRIPTION Feasibility Report July 20, 2007

GENERAL

The 12,500 sq. ft., single story, 40 ft. high building will be of Type II, 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides the site is fronted by public ways, and on a third by a surface parking lot. The fourth side is adjacent to the side yard setback of a multi unit residential property. Property line walls on the two interior sides will require 2 hour rating.

Occupancy classification is A3, except for the pool chemical storage, which is an H (hazardous) occupancy, requiring a rated occupancy separation.

The project will be publicly bid around mid 2009, with the earliest opening date mid 2010. The pool design and construction will be subject to review by County Health Department in addition to the normal City of Berkeley plan check process.

PROGRAM DESCRIPTION

The program developed by a Task Force comprised of City staff, Warm Water Pool Users and design consultants includes the following elements:

Site Plan.The exact dimensions of the site are still to be negotiated with the BUSD; however, the basic concept is for the building itself to very nearly fill the limit of the site. There is no program need requiring any site development beyond the building envelope, except for a small waiting and pickup zone outside the entry.For purposes of this feasibility study, the working assumption is that parking requirements will be served by the existing surface parking lot to the south.

Public Lobby. The public entry lobby is not intended to serve any other function than entry, registration, access to changing rooms, exiting, and indoor waiting. It is to be supervised from a single point – the same office that views the indoor pool – and is sized to accommodate several motorized scooters and wheel chairs, or a group of children with attendants, at any one time. Drinking fountains and restrooms are provided in the changing rooms.

Natatorium. The indoor pool is intended to replicate all of the functions and programs of the existing pool in the Old Gym, in a new, state of the art facility. It is not intended to duplicate any programs that are currently provided at the YMCA, such as MS programs. The water temperature is to be between 92 and 94 degrees. Depths are suitable for free vertical floating, full submersion, or standing activities for a wide range of body heights. A full range of pool access equipment is provided, as well as a zip line and suspension rings. A high volume space with good acoustics, air quality and daylight with low maintenance and staffing costs is the goal.

Pool entrance and egress opportunities will include standard pool ladders and a 12 foot wide set of gentle steps with handrails at each end and one 24 inches from one end for support for both arms during entry and egress. A permanent pool lift is located at the end of the steps. Poolside storage cubicles are provided

GD-1

Page 5: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

WARM WATER POOL GENERAL DESCRIPTION Feasibility Report July 20, 2007

at the other end of the steps. A ‘dry ramp’ is also located along side the pool for unassisted transfer from a standard wheel chair into and out of the pool. Wheel chair storage and deck stretching areas are adjacent to the dry ramp. An overhead track may be provided for entry via a sling apparatus, and has been priced as an alternate.

The experience of immersion in warm water is not just therapeutic; for many of the users it has a spiritual impact. At one public workshop the warm water pool was compared to the spring water pools at Lourdes, France. To satisfy these needs, the natatorium space should have generous height and volume, careful detailing, and good natural lighting. Public art in this space should enhance this spirituality. The room acoustics should accommodate solitary meditation as well as small group socializing, which is always a challenge in a damp, corrosive environment that seems more appropriate for hard, durable, non-porous surfaces.

Changing Rooms. Mens’ and womens’ general changing rooms are generously accessible, and include toilets, privacy shower stalls, and locker areas with extra wide circulation aisles and wide benches. Two unassigned private dressing rooms with toilets, showers and dressing tables will be provided for individuals with or without attendants not wishing to use the general changing facilities. High quality acoustics, lighting and air quality are desired in all of these spaces.

Equipment and Storage. The pool equipment room will be located immediately adjacent to the pool deck, accessed from the surface parking lot and from the interior. Secure, enclosed pool storage will be provided, as well as ample deck spaces for storage of personal items such as prosthetic limbs and wheel chairs.

DESIGN DESCRIPTION

The design of the project should befit the historic Civic Center district and appropriately convey the commitment of the City to health, fitness and sustainable services. The building design and selection of materials is based on the palette of materials already in place on the neighboring buildings and materials that are appropriate for the building based on its function, design and budget will complement the nearby civic buildings, such as Berkeley City Hall, Berkeley High School, and the main post office. It will be a permanent facility with a life expectancy approximating that of the Old Gym, built in 1929.

OUTLINE SPECIFICATIONS

Exterior

EntriesThe entries to the project will be clearly identifiable from both van and car parking, paratransit drop-off, and from public transit.

Site Design

GD-2

Page 6: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

WARM WATER POOL GENERAL DESCRIPTION Feasibility Report July 20, 2007

Paving will match city standard concrete at sidewalks and curbs. At the small outdoor waiting areas on Milvia the colored concrete paving from the interior lobby will extend to the property line. Landscaping will be provided in planters or movable pots. Exterior lighting will include the waiting areas and the building exterior. Parking lighting is not a part of this project.

Building ExteriorsThe exterior walls around the pool space are formed structural shotcrete, troweled smooth on the interior and finished with a top coat of cement plaster at the exterior.The exterior walls of the locker rooms volume are reinforced CMU with cement plaster finish on the exterior and paint finish on the interior. Porcelain tiles are affixed to the exterior walls of the locker rooms volume on the north and west.

There are four 4’ x 9’ panels of polycarbonate blocks (one on the north elevation, one on the south elevation and two on the west elevation) of the dressing rooms volume, by Rockwell Building Plastics or equal. Multi-wall polycarbonate panels (16mm thick) clad the pool volume clerestory area on the north, west and south elevations, by Polygal plastics Industries Ltd. The fastening clips and caps are aluminum.

Entrances and GlazingEntry doors are of insulated glass with clear anodized aluminum frames. Natatorium will have operable window sections. Entrances will be of heavy duty construction, with automatic openings as required by ADA and by specific program needs.

RoofThe typical roof surface will be a cold applied, built up roof system with a special color aggregate surfacing. The sloped library roof will be a metal panel roof system.All roofs will have a minimum of 2” of rigid insulation applied over structural decking.All rooftop mechanical units will be screened with metal panels.

InteriorAll of the interior walls are reinforced CMU, filled and paint finished.

NatatoriumFloors: Textured colored concrete at pool decks Walls: The exterior walls of the pool space and the pool mechanical

and storage rooms will be concrete up to 12 feet. Above that in the pool space on the east side will be a solid fire rated wall to the top of the roof. On the other three sides will be a combination of operable windows and a translucent polycarbonate enclosure system. Moisture resistant acoustical panels will be applied to upper wall surfaces. All glazing will be insulated.

Ceilings: Exposed structural SIP panels with surface applied moisture resistant acoustical panels. Exposed trusses will receive urethane paint system. Ductwork will be architecturally exposed.All exposed hangers and fasteners will be aluminum or stainless steel.

GD-3

Page 7: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

WARM WATER POOL GENERAL DESCRIPTION Feasibility Report July 20, 2007

Special Features: Allow for public art at a suitable scale for the large room: two glass panels, approximately 8’ x 12’ each.

Locker RoomsFloors: Fluid applied epoxy or colored concrete in locker rooms; tile in

toilet, shower areas. All flooring will have a non slip surface texture.

Walls: Exposed concrete block at exterior walls, finished with cement plaster, and concrete block partitions elsewhere. Where exposed, concrete block shall have a glazed surface, such as Spectraglaze. Durable translucent polycarbonate blocks will allow natural daylight into the dressing areas while maintaining privacy.

Ceilings: Suspended ceiling grid with lay in moisture resistant acoustical panels.

Special Features: Lockers will be moisture resistant, either painted fully galvanized, or phenolic. Locker benches will be extra wide benches. Showers will be outfitted with individual shower heads. All toilet and shower partitions will be floor mounted overhead braced phenolic core construction. Locker room doors will have automatic opening devices. Private dressisng rooms will be sized to accommodate large movable dressing tables in several layout configurations.

Lobby and OfficeFloors: Colored concrete in lobby; carpet in the office. Walls: Gypsum board in lobby and offices, workrooms, storage and

service rooms. Upper lobby walls will receive acoustical panels; lower wall surfaces will be treated with wainscoting.

Ceilings: Suspended ceiling grid with lay in moisture resistant acoustical panels.

Special Features: The office service counter will have custom wood casework and service sliding windows from the office to the lobby and to the natatorium. Sound system to all spaces will be controlled at the office. Lobby will contain a built in bulletin board. Automatic door opening hardware will be provided at the main entry and entrances to natatorium and locker rooms.

Trash/ServiceFloors: Sealed concrete.Walls: Painted concrete block or spray applied concrete. Ceilings: Exposed structure.

Sustainability FeaturesWhile actual LEED certification is not a mandate of the City, an energy-efficient, sustainable project is the goal of the City.Therefore, assume that material selection and construction management will comply generally with requirements for LEED Silver certification for purposes of pricing, such as high slag

GD-4

Page 8: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

WARM WATER POOL GENERAL DESCRIPTION Feasibility Report July 20, 2007

content concrete, FSC wood, recycled content products, construction waste recycling, commissioning, etc.

Pricing Alternates1. Innovative energy systems. Microturbines. Solar Hot water panels Photovoltaic System.

2. Surcharge for all costs associated with LEED Silver certification over basic construction for architectural and structural systems, if any, except those costs associated with specific mechanical and electrical systems, which are itemized below.

3. 100% Outside Air System. Additional costs, if any, for specified system over standard recycling, dehumidifying system.

4. General mechanical upgrade. Condensate recovery system; hot water recirculation system; stormwater capture and recycle system.

5. General electrical upgrade: upsized wiring; daylight harvesting lighting control system.

6. Special pool features due to accessibility or sustainability goals to be determined, main include Zeolite filter medium, on-site chlorine, overhead rail, rings, extra inlets or jets, toe grips, heavy duty grating, etc.

7. Upcharge for prefab trusses v. custom trusses w/ SIP panels.

8. Upcharge for additional lateral strengthening.

GD-5

Page 9: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

City of BerkeleyWarm Water Therapy PoolFeasibility Study

Page 10: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Berkeley Indoor Warm Water Therapy Pool

7/26/07 SWIMMING POOL 13150-2© 2006 COUNSILMAN – HUNSAKER

CITY OF BERKELEY

WARM WATER THERAPY POOL

The City of Berkeley warm water therapy pool will be designed as a community poolservicing the needs and requirements of the general population and the physicallyimpaired for fitness and therapeutic aquatic exercise.

The pool will be designed with a deck level perimeter overflow gutter circulation systemto make it the most user friendly environment possible, the gutter lip will have a tilehand hold and the walls a recessed toe ledge allowing the users to stop and rest. Thepool user will be allowed alternate means of access by use of stairs with appropriatelyplaced hand rails for persons with upper body movement to support injured or physicallyimpaired legs and feet, a dry ramp for wheelchair transfer into the water and also the useof an ADA approved aquatic access lift.

The pool mechanical circulation system and water quality will be managed by a state-of-the-art automated chemical control system and an online medium pressure UV watertreatment system that will maintain optimum sanitization and water quality for thebathers and facility staff. High efficiency, low NOx pool heaters will control andmaintain the water temperature at 94 degrees and will utilize auxiliary solar heatedwater to keep pool heating at a minimum. A “Smart Pump Control System” in tandemwith the pool filtration system and chemical control system responding from relays onthe water flow sensor will control the pool circulation pump to operate at is highestefficiency point throughout the filtration cycle saving both energy and wear and tear onthe mechanical components. Thermal pool covers will be utilized to cover the pool atdowntimes and in the evening hours. These pool covers will contribute to savings onsupply water, energy and chemical costs.

During design phase of the project further options will be extensively explored and thesemay include the possibilities of on-site chemical generation, alternate energy sourcesand alternative filter media.

Page 11: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Berkeley Indoor Warm Water Therapy Pool

7/26/07 SWIMMING POOL 13150-3© 2006 COUNSILMAN – HUNSAKER

OUTLINE SPECIFICATIONSECTION 13150

WARM WATER THERAPY POOL

PART 1 - GENERAL

1.01 SUMMARY OF WORK (for general guidance-not all inclusive)

A. Introduction

Furnish all labor, materials, equipment and services necessary to construct the following: a warm watertherapy swimming pool approximately 3,200 square feet in area. This work shall include the structure(s)and installation of finish(es) as well as all products listed in Part 2 of Section 13150.

B. Work included in this Section:

It is the intent of this Section to place the entire responsibility for the construction of the pool(including the construction of the pool shell) under one vested contractor. The contractor willactually do the work noted below. Under this Section the contractor will provide but is notnecessarily limited to the following:

1. Provide all equipment and services required for erection and delivery onto the premises of anyequipment or apparatus furnished. Remove equipment from premises when no longer required.

2. Layout, excavate, remove from the construction site, replace and grade materials as requiredbeyond the limits of excavation of the pool shell to complete the work described in this section.Reference Division 2 - Site Work.

3. Grade and replace load bearing or high plasticity index soil, pump and dewater as necessary tokeep excavations free from water during construction, and provide sub-surface drainage beneaththe pump pit, surge tanks, and backwash pit. Reference Division 2 - Site Work.

4. Provide and maintain proper shoring and bracing for existing utilities, sewers and buildingfoundations where required for contractor related excavations. Reference Division 2 - Site Work.

5. Provide all electrical conduit, wiring, junction boxes etc. to all low voltage pool equipment within poolfilter/chemical rooms per Division 16 - Electrical. (Low voltage is considered less than 115 V.)

6. Furnish and install all necessary piping and valving as shown on the drawings and specified herein.

7. Furnish and install the main drain hydrostatic relief system and a sight sump as shown on thedrawings. Reference Division 2 - Site Work.

8. Construct the pneumatically applied concrete pool shell and cast in place surge tank as described inthese specifications and detailed on the Drawings, including reinforcement steel, inserts, fittings, maindrain sumps and all embedded items (piping, anchors, etc.) for the pool. Reference Division 3 -Concrete and Structural. Before commencing the placement of concrete, verify electrical bondingof pool embedded items and reinforcing steel. Also, coordinate and arrange any required

Page 12: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Berkeley Indoor Warm Water Therapy Pool

7/26/07 SWIMMING POOL 13150-4© 2006 COUNSILMAN – HUNSAKER

electrical, plumbing and or building inspections. Provide any structure drainage around the pool asshown on the Drawings. Backfill and compact fill around the pool structur, piping trenches andexcavations required by this work. Reference Division 2 – Site Work.

9. Furnish and install a white plaster finish in the pool with a slip resistant surface and a verticaltile band. Furnish and install specialty tile for the perimeter water line tile band, gutter nosing,wall targets, floor lane markings, depth markings and warning signs, stanchion and water poloidentification, and all other tile installation within the pool structure. Reference Section 13154 -Swimming Pool Tile.

10. Assemble and install the cleaning and maintenance equipment for the pool as specified herein.

11. Provide for the storage of all pool related equipment, materials and systems. All items are theresponsibility of the contractor until accepted by owner.

12. Obtain final acceptance by jurisdictional health department(s).

13. Start, test, calibrate and adjust all mechanical equipment, electrical equipment, recirculation,chemical, and other supplied systems including deck, loose, maintenance, and safety equipment.Instruct the Owner's representative in the systems operation and maintenance as described

herein.

14. Furnish and install the heating system for the pool. Include all piping, heaters, booster pumps,controls, gauges, thermostats, control valves and wiring required to draw water from therecirculation line, heat the water and return it back to the recirculation line and interlock withpool recirculation pumps.

1.02 ALTERNATES

A. Review the description of Alternates in Division 1 and on the drawings for possible effect upon workin this Section. Alternates related to the Work in this section are described in this division and onthe Bid Proposal Form.

B. Alternates:

Alternate #1: On site chlorine generation system by MicrOclor or approved equal.• 20 ppd. skid system• 500 lb. brine tank with level control• 200 gallon chlorine storage tank with level sensor• Dual tank water softener• Hydrogen dilution blower system• Chlorine feed pump

Alternate #2: Zeolite filter media – 1,850 lbs (2 filters) as a substitute for sand

1.03 SUBMITTALS

A. Six (6) sets of shop drawings and engineering data shall be tabbed, indexed, referenced to thespecifications, bound in 3 ring binders and submitted in two stages. Provide 8 ½” x 11” cover sheet foreach item submitted identifying item and product number. The first stage will be all embedded items for

Page 13: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Berkeley Indoor Warm Water Therapy Pool

7/26/07 SWIMMING POOL 13150-5© 2006 COUNSILMAN – HUNSAKER

the pool shells (including piping diagrams) and the second stage all other items. Only complete setswill be reviewed.

1.04 OPERATION AND MAINTENANCE MANUALS AND CLOSE-OUT SUBMITTALS

A. Detailed operation and maintenance information shall be supplied for all equipment requiringmaintenance or other attention. The equipment supplier and/or contractor shall prepare an operation andmaintenance manual for all equipment. Parts lists and operating and maintenance instructions shall befurnished.

1.05 WARRANTIES

A. The contractor warrants to the Owner and Architect that materials and equipment furnished under thecontract will be of good quality and new unless otherwise required or permitted by the ContractDocuments, that the work will be free from defects not inherent in the quality required or permitted, andthat the work will conform with the requirements of the Contract Documents. Work not conforming tothese requirements, including substitutions not properly approved and authorized may be considereddefective. The contractor's warranty may exclude remedies for damage or defect caused by abuse,improper or insufficient maintenance, improper operations, modifications not executed by the contractor orimproper wear and tear under normal use. If required by the Architect, the contractor shall furnishsatisfactory evidence as to the kind and quality of materials and equipment. All warranties shall be for aperiod of one year from the date of substantial completion or the owner begins using the pool unlessotherwise specified.

1.06 RECORD DRAWINGS

A. Provide a complete set of record drawings of the entire pool system including all sub-systems. Allrecord drawings shall be prepared in accordance with the requirements of Section 01720 and shallbe a complete, stand alone set. The CONTRACTOR shall be permitted to obtain original documentsand copy them for this purpose only. Furnish the record set on 30 inch x 42 inch mylar, 3-1/2 inchcomputer diskettes, or compact disk (AutoCAD Release 12, 13, 14, 2000 or compatible software).

PART 2 - PRODUCTS

2.01 OVERFLOW SYSTEM

It is the intent of the specifications that the perimeter overflow system and surface cleaning be maintainedunder all conditions of normal operation and that no water be discharged to waste except when cleaningthe filters or emptying the pool.

A. Deck Level Perimeter Overflow System

A deck level gutter system shall be utilized for the perimeter overflow system. Gutter shall be a continuousconcrete and tile overflow channel as detailed and shown on the drawings shall be installed on the pool.The bottom of the trough shall be level throughout.

B. Gutter grating

The grating shall be formed of molded PVC sections. Modular, interlocking pieces of PVC U.V. stabilizedgrating. The top surface shall be ergonomically-designed diamond ridge pattern to create good friction,

Page 14: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Berkeley Indoor Warm Water Therapy Pool

7/26/07 SWIMMING POOL 13150-6© 2006 COUNSILMAN – HUNSAKER

wet or dry and be 11/16” wide and complies with federal ADA regulations to accommodate light vehicletraffic, with an outside depth of 1.0” and a middle depth of 1-3/8” for extra strength. The space betweenpieces shall not exceed 3/8”. Each piece of grate shall have a slotted hole at the ends for insertion of astainless steel fastener clip and anchor screws every 5 feet and shall be easily removable. Grating surfacebars shall run parallel to the pool wall, provide at least 35% open space per foot for unrestricted water flow.Available in six standard colors. Grating shall be manufactured by Grate Technologies, Inc., or approvedequal.

2.02 PUMPING EQUIPMENT

A. Furnish and install horizontally mounted all plastic self priming centrifugal pump with a 3 phase, 60 cycleelectrically driven motor. This pump shall be close coupled, horizontally mounted, with stainless steelshaft, centrifugal with no overloading characteristics for capacity, head and service with noryl encasedsingle-suction enclosed impeller statically and hydraulically balanced. Pump motor to be grease lubricatedopen drip proof induction type for full voltage start. Hair and lint pot with stainless steel basket. Provideone extra stainless steel basket. Pentair EQ series or approved equal.

2.03 FILTRATION EQUIPMENT

A. High rate, pressure sand filters will filter the pool water every 2 hours (at a rate not to exceed 15gallons per minute per square foot). An eleven-foot minimum (10 ft. desirable) high ceiling in thefilter room should be provided for ample clearance for the filters and piping above. Filters willbackwash individually. Pentair Triton TR 140C or approved equal.

2.04 RECIRCULATION FITTINGS

A. Main drain outlets will be concrete sumps with PVC frames and grating.

B. Furnish and install hydrostatic relief valve consisting of a cast bronze body and valve plate complete withvalve seat gasket, stamped brass top cover plate and a 2 inch PVC water collection tube in each of the mainpool sumps. If applicable.

C. The pool drop outs shall be formed out of concrete.

D. Wall inlet fittings shall be Sta-Rite No. 8429-0000 or Hayward Model SP-1419C (1/2 inch opening)Cycolac directional inlet mounted in Hayward Model SP-1022S, or approved equal.

E. Static water line inlet fitting for the automatic water level controller shall be provided consisting of aCycolac body, grate and construction shield. The body shall have a 1-1/2 inch solvent weldconnection and provided with an integral molded "knock-out" membrane to facilitate line pressuretesting.

F. The outlet fitting grate from the fill funnel into the pool shall be a Hayward SP-1026 mounted in aHayward Model SP-1022S or equal.

G. Adjustable floor inlet fittings will be provided each consisting of an ABS plastic body and adjustingtop plate with a positive locking device.

H. Valve box covers and frames that are not specified on the drawings or specifically identified as another sizeor material shall be nickel bronze with polished scored top, vandal proof screws or approved equal.

Page 15: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Berkeley Indoor Warm Water Therapy Pool

7/26/07 SWIMMING POOL 13150-7© 2006 COUNSILMAN – HUNSAKER

I. Anti-vortex plates shall be provided at the suction points of the main recirculation pump in the surge tank.Each plate shall be connected to the suction pipe via a PVC flange and shall be 24 in. x 24 in. x 1 in.thick.

2.05 PIPING SYSTEMS

A. Exposed piping in the filter room and surge tank will be Schedule 80 PVC for strength andresistance to corrosion. All piping below the floor of the pool shell shall also be Schedule 80 PVC.

B. All valves will be identified in the filter room. Valves will be described as to their function andreferenced in the operating instruction manual and wall mounted piping diagram to be prepared bythe contractor.

2.06 CHEMICAL TREATMENT SYSTEMS

A. Calcium Hypochlorite (Tablet Chlorine)

Calcium Hypochlorite will provide the primary chemical sanitizing for the pool. The halogenrequirement of the pool will be automatically monitored and controlled by a chemical controllercapable of monitoring 0 to 6 parts per million of chemical and showing Oxidation ReductionPotential (ORP) in addition to the two traditional readings of sanitizer and pH, or approved equal.Pulsar P-3 or approved equal.

B. Ultraviolet Light Chloramine Destruct System

The pool shall be equipped with a treatment chamber containing a 5.0 kW medium pressure UVlamp type mercury vapor arc tube. The UV sensor will be equipped with 4-20mA output and alarm.A NEMA 12 Control Cabinet for each system with dimensions 28.0 inches wide, 40 inches height

and 16 inches depth will be included. Power to cabinet to be 460 Volt, 3 phase, 40 amp circuit witha maximum power consumption of 5.0 kW. The treatment chamber and control cabinet will belocated within the main pool mechanical space with location indicated on the pool drawings. ETS orapproved equal.

C. pH Buffering System (Muriatic Acid)

Chemical feeders for muriatic acid shall be peristaltic type pumps. One (1) 55 gallon dualcontainment acid drum shall be provided. Chemical feed pumps shall be furnished and connected tothe filtered water return lines to the pool as shown on the pool plans. The pumps shall be capable offeeding a solution to the pool to maintain pH level against the back pressure involved and shall befully adjustable while in operation.

2.07 WATER CHEMISTRY MONITORING AND CONTROL SYSTEMS

A. A programmable chemical automation system shall be furnished for the pool for continuous monitoring ofwater chemistry (ORP/HRR, PPM, pH and Temperature), Langelier Saturation Index, and forautomatic control of the chemical feeders, heater, and water level. Installation of the system shall beas specified by the manufacturer and no exceptions shall be taken. A factory-authorizedrepresentative shall provide training to the owner and the training shall be video taped per 13150specifications. Strantrol Impact or approved equal.

Page 16: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Berkeley Indoor Warm Water Therapy Pool

7/26/07 SWIMMING POOL 13150-8© 2006 COUNSILMAN – HUNSAKER

2.08 FLOW METER AND WATER METER

A. Flow meters will be installed in the filtered water return lines to the pool(s) and installed in the backwashpiping. Signet flow meters will be specified.

B. A water meter shall be furnished by the contractor and installed by the plumbing contractor. Thewater meter shall be installed downstream of the slow closing solenoid valve located at the freshwater supply over the fill funnel as shown on swimming pool drawings. The water meter shall havea non-corrodible main case, measuring chamber, and hermetically sealed register.

C. Refill flow meter shall be installed on dilution piping to backwash tank. Flow meter shall be onepiece meter body of injected molded polysulfone adapters, viton o-ring seals, and 316 stainless steelfloats and float guide, impact resistant machined acrylic plastic body.

2.09 WATER LEVEL CONTROLLERS

A. An automatic water level controller will be provided to maintain the correct water level in the pool at alltimes. It will consist of a proximity switch type control unit and a coaxial control wire to be connected tothe plumbing system's make up water solenoid valve. A manual fill valve will also be available to bypassthe automatic system.

2.10 INSERTS AND ANCHOR SOCKETS

A. Anchors for grab rails and stair railings will be provided.

B. Heavy-duty cup anchors for all swimming lanes will be provided.

C. Anchors for the handicap lift will be provided.

D. Recessed steps shall be a single molding of white ABS with an integral slip resistant tread surface.

2.11 DECK EQUIPMENT

A. Grab rails and recessed steps for the pool will be provided as required. These will be provided by stainlesssteel grab-rails set in chrome plated bronze wedge anchors and escutcheons with set screws. Recessed stepsin the pool wall will be provided.

B. Lifeguard chairs to meet the minimum standards of state regulations will be provided in portable (wheeled)units that may be stored out of the way during periods when lifeguards are not required.

C. Surge tank access hatch shall be furnished and installed as shown on the Drawings. The accesshatch shall be a single door 2 ft.-6 in. x 2 ft.6 in with 1” fillable pan to receive concrete deck fill.The frame shall be 1/4 inch extruded aluminum with built in neoprene cushion and continuousanchor flange. Door shall be ¼” aluminum plate reinforced with aluminum stiffeners as required.

D. Surge tank ladder rungs shall be 1/2 inch Grade 60 steel encased with co-polymer polypropyleneplastic.

E. One handicap lift will be provided to meet ADA guidelines. PAL or approved equal.

Page 17: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Berkeley Indoor Warm Water Therapy Pool

7/26/07 SWIMMING POOL 13150-9© 2006 COUNSILMAN – HUNSAKER

2.12 LOOSE EQUIPMENT

A. Lifeline shall be 3/4 inch blue and white polyethylene rope with floats that are 5 inch diameter by 9 inchlong. Floats to be spaced on five foot centers for use as lane lines to divide programming uses.

2.13 MAINTENANCE EQUIPMENT

A. Wall brush shall be a flexible polyethylene material with five (5) rows of nylon bristles. Pool brush holdershall be permanent mold cast aluminum with hydrofoil flap.

B. Skimming Net head shall consist of one-piece molded plastic frame with a reinforced, integral handlebracket suitable for quick attachment to a standard 1¼ or 1 ½ inch diameter handle using bolts and wingnut.

C. Adjustable telescopic and stainless steel poles to shall be provided.

D. Testing kit to feature liquid reagents, color comparator, waterproof instructions and treatment charts,chemistry guide and watergram. Test kit to have the ability to test for free and total chlorine (0.5 – 5.0ppm), bromine (1-10 ppm), pH (7.0 – 8.0), acid and base demand, total alkalinity, calcium hardness andcyanuric acid. Palen Test Kit or approved equal.

E. Vacuum Cleaner shall be provided with pump and strainer.

F. Robotic Pool Cleaner: Provide one electric motor driven automatic robot swimming pool vacuum device.

G. Stainless steel Cleaner will be provided (one (1) required per body of water).

2.14 SAFETY EQUIPMENT

A. Ring Buoys and Extension Ropes shall be provided.

B. Life hook and an aluminum extension pole shall be provided.

C. Spineboards shall be provided with head immobilizer, head strap, body straps, side roll ups, adhesivestrips and required staples.

D. First Aid Kit shall be a 24 unit kit per American Red Cross standards as manufactured by Swift First Aid,or equal.

E. Rescue tube for each lifeguard chair.

F. Safety Eye Wash Station shall be a self-contained system in which eyewash bottles are securely positionedin a portable holder. Eyewash bottles shall be 32 ounces and easily removable from case, and shall containa sterile, saline solution with the ability to neutralize a varying quantity acids or caustics. .

G. Safety Eyeglasses dispenser station containing ten (10) pairs of safety glasses shall be provided.

Page 18: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Berkeley Indoor Warm Water Therapy Pool

7/26/07 SWIMMING POOL 13150-10© 2006 COUNSILMAN – HUNSAKER

2.15 THERMOMETERS

A. Portable thermometer shall be a molded ABS plastic tube body type with the ability to measuretemperature in both degrees Fahrenheit and Celsius. A 3 ft. polyethylene cord is to be attached tothermometer.

B. In-Line thermometer to be near the heating loop and shall have a 9 inch adjustable angle with aminimum 6 inch stem.

2.16 FINISHES

A. Furnish and install a white plaster finish in the pool with a slip resistant surface with a vertical tileband. Furnish and install specialty tile for the perimeter water line tile, gutter nosing, wall targets,floor lane markings, depth markings and warning signs, stanchion sockets and all other tileinstallation within the pool structure. Reference Section 13154 - Swimming Pool Tile.

2.17 WATERPROOFING

A. The interior surfaces of the surge tank, gutter trough and backwash pit coating shall be a high buildepoxy or pre-blended, cementitious waterproofing coating/mortar consisting of hydraulic binders,selected aggregates and a synthetic polymer intended for the protection of concrete masonrysurfaces. Waterproofing coating shall be Thoroseal or equal.

2.18 SEALANTS

A. Sealants shall be installed by the contractor.

2.19 UNDERWATER LIGHTS

A. Underwater lights (500 watts) will be specified. Underwater lights shall be furnished by the contractor andinstalled and wired by the electrical contractor.

2.20 SWIMMING POOL COVER

The swimming pool cover system shall be of the energy conservation type. The covers shall be supplied inpanel sections, allowing for ease of storage, and ease of installation and removal. The cover panelmaterials shall withstand the commercial aquatic facilities’ environment. Panels shall receive edgingmaterials to strengthen the panel and to allow for deployment and retrieval without damaging the panel’smain body materials. All materials shall be ultraviolet stabilized to ensure long life. The cover panelsshall be reversible – allowing for the panels to be rotated, using both sides and end to end, every other year,supporting additional panel life. Warning labels shall be affixed in four places to both sides of the paneland shall instruct in the panels proper use and warn patrons of hazards associated with covered swimmingpools. Cover panel systems shall be supplied with a protector, for use when panels are not deployed. Theswimming pool cover system and its accessory items shall be manufactured by Spectrum Products, T- StarEnterprises or approved equal.

2.21 POOL HEATER

A. The pool heater shall be gas direct fired high efficiency swimming pool heaters with a low NOxrating for the competition pool. Lochinvar Copper-Fin II Commercial Model or approved equal.

Page 19: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Berkeley Indoor Warm Water Therapy Pool

7/26/07 SWIMMING POOL 13150-11© 2006 COUNSILMAN – HUNSAKER

SECTION 13153 – SWIMMING POOL PLASTER

A. Provide a white marble plaster interior finish to the pool structure. Provide water analysis and pre-fill requirements. Prepare a 12-inch square panel at the site showing color and texture for poolplaster. Finished plasterwork shall match the approved sample panel.

SECTION 13154 – SWIMMING POOL TILE

A. The pool finish water line tile finish will be 6” X 6” glazed white ceramic tile. Tile hand hold will be DalTile C-701 and the deck tile at both sides of the gutter will be 1” x 1” non glazed. Depth and “No Diving”signs will also be 1” x 1” non glazed tile. The recessed toe ledge will be 1” x 1” tile with a contrasting 1” x1” nosing tile. Lane lines on the floor and diamond targets on the walls will be provided in a dark colortile (cobalt blue of dark green). For areas needing special non-slip attention, such as depth markers nearthe pool edge, the abrasive content of the tile will be specified as 7 1/2%.

PART 3 - EXECUTION

3.01 EQUIPMENT AND SYSTEMS INSTALLATION

A. The contractor shall assemble and install all equipment, special parts and accessories as shown on pooldrawings, specifications and shop drawings of the equipment suppliers.

B. SPC shall furnish all anchors and inserts to be imbedded in the deck including all fittings, inserts andstructure sleeves and required anchorage’s as shown on the plans and as indicated in this Section ofspecifications. Equipment shall be set true and plumb, using factory jigs where available. Removableequipment items shall be easily removable from anchors and shall fit without noticeable wobble.

C. Provide templates for all equipment anchors. Provide anchor bolts of the size and spacing as required bythe equipment manufacturer. All anchor bolts shall be stainless steel Type 316 and of a length capable ofadequate anchorage into rough slab-on-grade allowing for finish deck tile and setting bed. Anchors shallbe set and cast into place during building concrete work. Inspect all anchor settings for horizontal andvertical alignment prior to placing concrete.

D. The contractor is to install all equipment and systems in accordance with manufacturer's directions.Equipment shall all be assembled and in place for final observation.

E. All items necessary to complete this Section are shown on the plans or described in the specificationsincluding items that may be purchased by the Owner. Items are detailed and specified as a guide fordimensional purposes. The contractor must make provisions accordingly and submit shop drawings andsubmittals based on that data.

END OF SECTION 13150

Page 20: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Berkeley Warm Water Pool

Page 1 of 3

Introduction

In this narrative, we address possible structural systems for the Berkeley Warm Water Pool. For this discussion, the building consists of three main volumes:

the largest is a high-volume open space, housing the pool and covered by long span framing

west of the pool is a one-story volume housing the lobby, locker rooms, administration, etc.

south of the pool is a support volume housing equipment, chemicals and storage

This narrative provides information relating to the foundation system, the gravity and lateral system and possible roof assemblies to be used for preliminary pricing and to aid schematic design.

General Structural Systems

Foundations

All foundations will be conventional reinforced concrete wall footings continuous around the perimeter of the building and underneath the walls separating the three volumes. Assume the wall footings will be 18” wide x 36” deep. The floor will be a 5” slab on grade over rigid insulation, vapor barrier and gravel base. Additional footings will also be required within the locker rooms, underneath the lightly reinforced 8” cmu partitions. Assume these footings are 16” wide x 16” deep. This foundation system does not include the in-ground structure required to support and insulate the pool itself.

Gravity System – Support Spaces

The basic gravity system will be conventional load-bearing reinforced concrete walls around the perimeter of the building and between the three volumes. Typical bearing walls would have a thickness of 10” while structural shear walls may be as thick as 16.” Locations of these shear walls are indicated in the Lateral System Diagram SK7.

Roof Framing – Support Spaces

Typical roof framing for the one-story support volumes of the building will be engineered wood I-joists with a plywood diaphragm. For the lobby/locker support volume, assume the I-joists will span east-west, and be 22” deep open-web members (wood chords with steel tube webs) at 24” o.c. For the equipment support volume, assume the I-joists will span north-south, and be 12” deep members (wood chords with plywood webs) at 24” o.c.

Roof Assembly Options – Pool Area

Options for the roof assembly over the pool area have been divided into three separate schemes. The first is a pre-manufactured truss assembly incorporating drop-ceiling construction and the second two are custom trusses supporting a structural insulated panel (SIP) roof.

Scheme 1 – Pre-manufactured Truss Joists

The first scheme is described in images SK-01 and SK-02. The gravity system would be a series of pre-manufactured steel trusses, approximately 44” deep, and spaced at 4 feet on center. These would span

Page 21: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Berkeley Warm Water Pool

Page 2 of 3

the breadth of the pool area (approximately 75 feet). The trusses would be supported by pre-manufactured steel truss girders spanning between steel columns set on a 16 foot grid.

The roof assembly, shown in detail in image SK-02, consists of (from top to bottom): a typical roofing finish specified by the architect; a roofing board (typically ½” plywood) on top of a corrugated metal deck that spans between joists; pre-manufactured trusses; an insulation specified by the architect; a drop ceiling assembly consisting of resilient channels to support a DensGlass ceiling panel (or similar), a vapor barrier, and an acoustic treatment.

The main benefits of this scheme are a low initial cost and potentially low maintenance (concealed structure and MEP).

Drawbacks to this scheme may include: high labor and material costs to assemble and waterproof the drop ceiling construction offsetting anticipated savings in material and fabrication; a lower overall ceiling height; thermal bridging at joist locations; the assembly requires ventilation but must be isolated from the pool humid pool air to avoid moisture damage; the MEP system is likely to be concealed and not easily accessible for maintenance.

Scheme 2 – Steel Pipe Truss

The second scheme is described in images SK-03 and SK-04. The gravity system would be a series of custom steel trusses, approximately 75” deep, and spaced at 16 feet on center. The trusses could consist of approximately 8” diameter steel pipes for the top and bottom chords, while the web could be a series of 3” diameter pipes. These would span the breadth of the pool area (approximately 75 feet). The trusses would be supported at each end by steel columns set on a 16 foot grid.

The roof assembly, shown in detail in image SK-04, consists of (from top to bottom): a typical roofing finish specified by the architect; a 14” structural insulated panel (SIP); an internal vapor barrier and an acoustic treatment. Additionally, the roof assembly would sit on a series of structural spacers attached to the truss and the SIP panels allowing for adequate ventilation and maintenance space between the trusses and the ceiling.

The main benefits of this scheme include: A shallow SIP roof assembly that has high insulation, low thermal bridging and no ventilation; a higher overall ceiling height; an added aesthetic value; an accessible (exposed) MEP system.

Drawbacks to this scheme may include: higher fabrication costs and occasional maintenance to paint the trusses.

Scheme 3 – Ribbon Truss

The third scheme is similar to Scheme 2 and is described in images SK-05 and SK-06. The gravity system would be a series of custom trusses fabricated out of wood and steel, approximately 72” deep, and spaced at 16 feet on center. The trusses could consist of a 16”x12” GluLam (flat orientation) for the top chord and a ½”x12” steel (stainless or painted) plate as the bottom chord “ribbon.” The web members could consist of 1” steel plates or structural tube sections (i.e. HSS 6x2x¼”). These trusses would span the breadth of the pool area (approximately 75 feet) and be supported by wood columns set on a 16 foot grid.

Page 22: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Berkeley Warm Water Pool

Page 3 of 3

The roof assembly, shown in detail in image SK-06, consists of (from top to bottom): a typical roofing finish specified by the architect; a 14” structural insulated panel (SIP); an internal vapor barrier and an acoustic treatment.

The main benefits of this scheme include: A shallow SIP roof assembly that has high insulation, low thermal bridging and no ventilation; a higher overall ceiling height; an added aesthetic value; an accessible (exposed) MEP system.

Drawbacks to this scheme may include: higher fabrication costs and occasional maintenance.

Lateral System

The two support spaces resist lateral loads with the reinforced concrete bearing walls around each volume described above. Most of these walls will be 10” thick. The lateral loads of the main, high-volume roof structure are also resisted by reinforced concrete walls. The lateral system is described diagrammatically in image SK-07. The southern wall is common to the equipment support volume. The east and west walls of the equipment support volume extend above the low roof to engage the high-volume roof. To support the northern elevation, a concrete buttress will be added at the north-west corner of the pool housing. These walls will be 16” thick. The roof diaphragms will be designed to perform as a rigid surface distributing all lateral forces to these four walls.

Sustainability Considerations

Concrete and CO2 Footprint

The embodied energy of the building makes up a significant portion of its overall CO2 footprint. Structural materials, especially concrete, account for the majority of the embodied energy. To reduce this impact, we propose using low-cement concrete. To date, our best mix consists of 70% slag and 30% cement with only 150 lbs. of cement per yard. The CO2 impact is reduced by 45%, as compared to conventional concrete.

Renewable and Recycled Materials

Wood used in the glulam beams and plywood for this project could be FSC certified depending on cost constraints. The I-joists are an efficient use of farmed wood products. The steel (rolled and rebar) has a recycled content over 90%.

Enhanced Seismic Performance

The seismic conditions are the dominant environmental driver for the Bay Area. This building will exist in one of the most seismically active areas of the state, and it will most likely experience a major earthquake during its life time. Because the building has a simple configuration with only a single story, it is very easy to add strength to the members for little cost. Adding strength to the lateral system is a high-value investment that will greatly reduce future losses by lowering repair costs and minimizing the loss of use. A life-cycle analysis will demonstrate the value.

Page 23: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

_______________________________

Berkeley Warm Pool

HVAC and Plumbing Systems Conceptual Design Narrative

July 18, 2007

__________________________________________

Rumsey Engineers 99 Linden Street Oakland, CA 94607 www.RumseyEngineers.com

Contact: John Bruschi 510 663 2070 ext. 224 510 663 2080 fax [email protected]

Page 24: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Rumsey Engineers, Inc. Berkeley Warm Pool 7.18.07 1 HVAC & Plumbing Conceptual Design Narrative

Heating, Ventilation, and Air Conditioning (HVAC) Systems

The mechanical systems for the Berkeley Warm Pool will be simple, efficient, and provide excellent user comfort and indoor air quality. The design will also use the most appropriate technologies to reduce energy in a straightforward way. Every effort will be made to keep the construction costs comparable to more traditional designs. The design team's approach will be to design an innovative and efficient total system rather than simply pay whatever it takes to get the most efficient conventional components.

Outside Design Conditions

Design Conditions (Temperature statistics are based on ASHRAE data for Oakland, CA.)

Summer: 82 F DB/ 65 F WB (coincident) (ASHRAE 0.4% conditions) Wet Bulb (Evaporation): 67.7 F WB/ 78.1 F DB (coincident) (ASHRAE 0.4% conditions) Dewpoint (Dehumid.): 63.9 F DP/ 89% RH / 71 F DB (coincident) (ASHRAE 0.4%

conditions) Outdoor Daily Range : 15.3 F Mean Daily Range during hottest month Winter: 39.8 F DB (ASHRAE 99% Conditions)

Extremes: 92 F Max/ 4.2F StdDev (Mean DB Extreme Annual Daily Value) 33.7 F Min/ 3.1F StdDev (Mean DB Extreme Annual Daily Value)

Interior Design Conditions

Space Type Temperature HumidityPool Area 84°F-89°F 50-60% Locker Rooms, Dressing Rooms 78-84 °F >20% Lobby, Office 76°F ±6 >20% Mech. and Elect. Rooms 50-85°F >20%

Minimum Ventilation Rates: Pool Area (Pool and Deck) 0.5 cfm/sf Toilets Exhausted to provide 12 Air Changes per Hour Changing Rooms 0.5 cfm/sf Shower Rooms 0.5 cfm/sf Mechanical and Electrical Rooms 0.15 cfm/sf Offices 0.15 cfm/sf Corridors 0.15 cfm/sf Janitor’s Closets Exhausted to provide 5 Air Changes per Hour Lobbies 3.0 cfm/sf

Ventilation Systems The pool area (pool and deck) ventilation air shall be supplied by a 100% outdoor air rooftop air handler, delivering approximately 16,000 cfm. Some natural ventilation will be controlled by the occupants with operable windows but the primary source for ventilation air will be forced air from the pool air handler. Due to the relatively high indoor air dewpoint temperature compared to the outside air design dewpoint temperature, mechanical dehumidification of outside air is unnecessary. The pool air handler shall be equipped with an air-to-air plate heat exchanger which will recover heat from the exhausted air to pre-heat the incoming, filtered outside air. As an option, the exhaust air condensate generated from this heat recovery could be treated and used as pool make-up water (also see the storm water section of Plumbing Systems below). A hot water coil will be mounted in the air handler to heat the supply air as required for heating the pool area.

Page 25: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Rumsey Engineers, Inc. Berkeley Warm Pool 7.18.07 2 HVAC & Plumbing Conceptual Design Narrative

Alternatively, the pool air handler could be selected to admit the minimum code required outside air (0.5 cfm/sq ft) and recirculate the remaining required return air. This air handler would be equipped with a heat recovery system using a DX refrigerant loop. The incoming return air would be dehumidified and reheated using the refrigerant loop. A hot water coil would be mounted in this air handler to raise the supply air temperature as required. Condensate could be collected from the dehumidification process, treated and used for pool make-up water.

For either option of pool air handler, the supply and exhaust fans will be equipped with variable speed drives.

Air will be supplied to the pool area using a fabric duct which has a better moisture resistance than sheet metal duct. Slots will be provided in the fabric duct to direct the air towards the pool to mitigate the effect of chloramines in the breathing space above the water surface. The air shall also be directed to “wash” the exterior walls and roof to prevent condensation formation on these surfaces.

The remaining spaces in this building will require approximately 10 exhaust fans, from 40 cfm to 1000 cfm. A second rooftop air handler with a variable speed driven fan motor shall supply approximately 4500 cfm of makeup air for these spaces. This air handler will be equipped with a hot water coil to temper the outside air during cold days. A small DX cooling coil will cool the air during hot summer days.

Heating & Cooling Systems

HeatingTwo 400 kBTU natural gas fired condensing boilers shall provide heating hot water for the air handler hot water coils. These boilers have a minimum thermal efficiency of 92%. The hot water will be delivered by a 2 horsepower pump with a variable speed drive.

CoolingThere is no requirement for cooling in the natatorium area. There is expected to be a small requirement for cooling in the lobby and offices. This cooling requirement will be met by the makeup air handler described above.

Plumbing Systems

The focus of the plumbing system design will be to reduce domestic water consumption. This will result in a decrease in wastewater production, and enable low energy hot water heating systems. Low-flow plumbing fixtures will be used to reduce the domestic water load. With the number of showers in the building, low-flow fixtures will represent a significant savings opportunity.

Domestic Cold Water Domestic cold water will be connected to all domestic plumbing fixtures within the building. The building domestic water service will be a complete connection to the water main located by the civil engineer. A single point of connection will be required for the service.

Domestic water pipe material will be type L copper above grade, type K copper underground.

Domestic Hot Water Domestic hot water will be provided to the shower rooms and janitor closets by a central hot water system with a small recirculation pump loop. Four 180 kBTU tankless water heaters would be manifolded together. By recirculating the hot water, each fixture will always be readily supplied with hot water, minimizing the amount of cold water that goes down the drain when waiting for hot water. For demand control, a temperature sensor will be located at the furthest fixture of the loop to control the pump, therefore, minimizing the run time of the pump to save energy.

Page 26: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Rumsey Engineers, Inc. Berkeley Warm Pool 7.18.07 3 HVAC & Plumbing Conceptual Design Narrative

Alternatively, domestic hot water can be provided by a 400 kBTUH condensing boiler and stored in a 600 gallon hot water storage tank. The natural-gas fired condensing boiler would have a minimum thermal efficiency of 92%.

Natural Gas Natural gas shall be supplied to the domestic water heaters and HVAC equipment as required. Piping shall be threaded Schedule 40 black steel sized and installed as required by code. The location of the meter shall be verified by the local utility.

Sanitary Waste and Vent A complete sanitary waste and vent system shall be provided for all plumbing fixtures throughout the building. Gravity laterals will be provided to collect waste and connect to a point of connection as directed by the civil engineer. The piping material will be “no hub” cast iron.

Storm Drains Roof drains, overflow drains and storm drain piping will be designed per the California Plumbing Code. Storm water from the building roof will be routed down through the mechanical chases. The overflow roof drains will be routed down through the building mechanical chases as well. The piping material will be “no hub” cast iron.

As an option, storm water can be captured and treated to be used for pool make-up water. The storm water would be filtered for sediment and treated using either ozone or an ultraviolet disinfection before routed to the pool chemical treatment system.

Pool Water Preheating System

The options below are intended to preheat the water to no more than 2 degrees below the pool water temperature setpoint. The pool water heaters will provide the precise temperature control required to maintain the pool water temperature setpoint.

Option 1: Solar Hot Water Collectors The pool water shall be preheated using Heliodyne Gobi collector panels. This system will require a circulating pump and a plate and frame heat exchanger to isolate this solar water loop from the pool water loop. Approximately 18 GOBI 410 and 54 GOBI 3366 collectors will be used to cover as much of the available pool roof as possible. Approximately 9 spring actuated array balancing valves will be required to distribute the solar hot water evenly through the panels.

Option 2: Microturbine combined heat and power system A 30 kW natural gas burning microturbine is being considered to provide electrical power to this building while providing waste heat to preheat the pool water. A separate, isolated hot water loop and two heat exchangers shall be used to transfer the microturbine’s exhaust heat to the pool water.

Page 27: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Berkeley Warm Water pool July 17, 2007

ELECTRICAL SYSTEMS DESCRIPTION

Berkeley Warm Water Pool

SUSTAINABILITY:

This building’s electrical and lighting systems will be designed using sustainable design principles with the goal of providing an enhanced environment for its users, minimizing energy consumption, minimizing the emission of global warming causing greenhouse gasses, being resource efficient, and minimizing the introduction of toxic materials into the environment.

CODES AND STANDARDS:

Meet all applicable local, state and federal code and standards.

SYSTEMS:

Electric Service:

The electric utility company will provide services via underground ductbanks, utility company provided cables and medium-to-low voltage transformers for 208Y/120 volt service. The Owner will provide the conduit within the property lines and the concrete pads for the electric utility company pad mounted transformers.

Metering will be provided in accordance with the electric utility company's requirements.

Distribution:

To allow the owner to better analyze how energy is being used by the building, separately sub-metered panels and wires in conduit will be provided for each of the following loads:

Mechanical and Plumbing Systems:

208Y/120V, 3 phase, 4 wire, 60 hertz.

Pool Equipment:

208Y/120V, 3 phase, 4 wire, 60 hertz.

For continuous, highly loaded circuits, upsized wiring principles will be used to evaluate the cost effectiveness at reducing energy transmission losses.

Lighting:

208Y/120V, 3 phase, 4 wire, 60 hertz for lighting.

Branch circuit design will be based upon a maximum of 120 volt circuit and 1,600 volt amperes per 20 ampere, 120 volt circuit. For continuous, highly loaded lighting branch circuits, upsized wiring principles increasing wire sizes from #12 to #10 AWG will be used to reduce energy transmission losses.

Integrated Design Associates, Inc. Page 1 of 4

Page 28: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Berkeley Warm Water pool July 17, 2007

General Purpose Receptacles:

208Y/120V, 3 phase, 4 wire, 60 hertz for general purpose receptacles.

Branch circuit design will be based upon a maximum of 120 volt circuit and 1,600 volt amperes per 20 ampere, 120 volt circuit.

Lighting:

Lighting is one of the key components for energy efficiency in a building and will be designed to create a comfortable visual environment while minimizing energy use by electric lighting without compromising lighting quality for the users. A key strategy to accomplish this will be designing to maximize natural daylight and combining automatic controls to provide energy savings by reducing the use of electric light throughout the site and building.

Full cutoff, cool color temperature, metal halide light fixtures will be used for exterior parking and site circulation areas. Layout will be based on mesopic principles to maximize efficiency while still providing appropriate light levels for the use. Fixtures will be complete with fixtures, ballasts, lamps and accessories.

Exterior Parking, and Site Circulation Areas will be controlled astronomic time switch at the Lighting Control Panel (LCP).

Fluorescent fixtures using highest efficiency T8 and T5 lamp and ballast combinations will be used for lighting interior spaces wherever possible.

Main pool room will be controlled by combination astronomic time switch at the LCP and daylight sensing photocell with manual override capabilities.

Locker rooms, toilets, showers and changing room will be controlled by combination automatic on / automatic off ultrasonic occupancy sensors and daylight sensing photocell.

Service Rooms such as pool equipment room, storage rooms will be controlled by manual on / automatic off ultrasonic occupancy sensors or digital count down time switch.

Light controls including all necessary switches, contactors, occupancy sensors, powerpacks, photocells, and LCP will be provided. Photocells will calibrate on the sliding set point principle.

Receptacles:

GFCI type receptacles will be provided in locker, toilets and shower areas, pool equipment rooms and outdoor areas.

Emergency Lighting:

Emergency power and lighting will be provided in accordance with Code requirements. Source of supply for emergency power will be individual battery packs.

Grounding:

System and equipment grounding will be provided. All switchboards, motor starters, panelboards, wiring systems, etc., will be effectively grounded.

Integrated Design Associates, Inc. Page 2 of 4

Page 29: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Berkeley Warm Water pool July 17, 2007

Equipment Connections:

Electrical power connections will be made to all mechanical equipment, pool equipment, domestic hot water heaters, pumps, etc., including furnishing of all electrically associated devices such as disconnect switches, contactors, magnetic or manual starters, lock-out switches, etc., which are not furnished under the Mechanical, Plumbing and Pool Equipment Sections.

SPECIAL SYSTEMS:

Telephone and Data Raceways:

Underground conduit will be provided from the utility POC to the office. Provide telephone and data lines to the pool equipment room and office as required.

Fire Alarm System:

Provide a manual, addressable fire alarm system with battery backup, including autodialer, manual pull stations at all exit doors, horns and strobes throughout per code requirements, smoke detectors protecting panels per code requirements, and automatic shut down of any air handling equipment or smoke fire dampers required by code.

Photovoltaic System:

As an add alternate provide a 30 kW AC, grid tied photovoltaic system using high efficiency single crystalline photovoltaic cells equal to SunPower 315 solar panels.

Security:

Raceway will be provided for a security system consisting of a control panel with autodialer, annunciation panel, alarm keypad, and monitor switches at all doors and windows.

MATERIALS:

Low Voltage Switchboards:

The low voltage switchboards will be completely assembled, free standing, with hard-drawn copper bus bars, full neutral bus, and separate copper ground bus. Switchboard shall be rated for 65,000 amperes interrupting capacity RMS symmetrical. Manufacturer: Square D QED2

Protective devices will be molded case type circuit breakers with adjustable trip settings.

Provision will be made for electric utility company metering transformers and meters.

Branch Circuit Panelboards:

208Y/120 volt panelboards will be equal to Square D NQOD.

25% spare protective devices will be provided in each panelboard.

Distribution Panels:

208Y/120 volt distribution panels will be equal to Square D I-line.

25% additional 3-pole spaces will be provided in each panelboard.

Integrated Design Associates, Inc. Page 3 of 4

Page 30: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides

Berkeley Warm Water pool July 17, 2007

Lighting:

Typical lighting fixtures selections to be determined.

Lighting control panel, occupancy sensors, countdown timer equal to WattStopper

Photocell equal to WattStopper or Lutron.

Receptacle

Receptacle surge protector power strips will be WattStopper Isole.

Photovoltaic System:

Single crystalline photovoltaic panels equal to SunPower 315 solar panels.

Integrated Design Associates, Inc. Page 4 of 4

Page 31: PHASE 5 · PHASE 5: Final Design Narrative. Berkeley Warm Water Pool Study Berkeley, California ... 1 Hour construction, fully sprinklered in lieu of 1 hour requirements. On two sides