Revised Design Concepts PHASE 3 - Berkeley, California...Revised Design Concepts. ELS A R C H I T E C T U R E A N D U R B A N D E S I G N 2040 Addison Street Berkeley, CA 94704 510.549.2929

PHASE 3:Revised Design Concepts

ELSA R C H I T E C T U R E A N D U R B A N D E S I G N

2040 Addison Street Berkeley, CA 94704 510.549.2929 510.843.3304 fax

ELS

Meeting Notes To: John Rosenbrock Date: June 14, 2007 revised June 18

From: David Petta Project: Berkeley Warm Water Pool

Subject: T.F. Meeting No. 3: Preferred Plan Project No: 200704

Meeting Date: June 13, 2007 Location: ELS Offices

Attendees COB: John Rosenbrock; Audrey Cazden; Paul Church; Scott Ferris Pool Users Group Reps: Jo Ann Cook; Juanita Kirby;

Mark Hendrix (teleconference) ELS: E.Noland, D.Petta

Item Discussion Who Due

1 Correction to Task Force 2 Notes. Item 2. Should be clarified to read “…2 staff per shift to operate entire facility. Extended hours of operation are possible.”

2 User Group. Per Council directive, the target user group is primarily the current user group, except that Alta Bates, Kaiser therapy programs (former users), should be accommodated as returning “current” users.

3 Program Expansion Options. To address inevitable questions about program expansion possibilities, ELS/CH will produce a matrix to show what additional features and costs would be incurred in order to attract which additional users and programs. Dedicated parking should be addressed.

ELS 7/11

4 Other Pool Groups. “United Pool Council”, “Pool Planning Council” and “Pools for Berkeley” are other groups promoting new pool facilities, interested in a broader range of programs which the matrix should anticipate. For a bond measure to pass, the pool should appeal to a broad spectrum of voters.

5 Surplus Property Committee. BUSD has appointed new members, to determine the status of the tennis court site.

6 Preferred Plan. The plan was approved as a concept plan with flexibility for future refinement – not as a final plan – with the following modifications: Provide side doors and vestibules, for access to locker rooms via pool deck,

reducing the need to staff the lobby. Provide direct outside access to chemical room. Label “café” as “vending”. Indicate pool lift, label overhead track location.

7 Draft Elevations, Sections. No exceptions were taken to the draft conceptual elevations, for purposes of cost estimating and for the development of a sketch rendering for the bond campaign. The following comments were offered: Durability, longevity, grafitti-resistance are to be considered in material

selection and pricing. The large skylights at Santa Clara were a desirable feature. Solar hot water has been in use for 2 years at the West Campus pool.

Task Force Meeting No. 3, June 13, 2007 Page 2 of 2 Distributed June 18, 2007

These minutes summarize the conclusions of the subject meeting. If there are any substantial errors or omissions, please contact ELS immediately.

8 Disability Commission Progress Presentation. ELS will prepare the public notice. Possible exhibits: extra large plans to pin up, and a diagrammatic section showing a range of depths and use by swimmers of different height and mobility.

ELS

9 Next Meeting, July 11. Discussion will be technical, focused on engineering and costs. Task Force members are welcome to attend. Billi Romain will be invited. ELS requested Pool Users to ascertain air temperature at the Old Gym pool. Users

Milestone Schedule: Apr 26 -- Task Force Meeting No. 1, Field Trip to Santa Clara May 9 – Workshop No. 1 “Vision for a New Warm Water Pool” May 24 – TFM 2: ELS to present 3-5 Plan Options Jun 13 – TFM 3: ELS to present the Preferred Plan Jul 11 – TFM 4: ELS/engineers to describe building systems Jul 11 – Disability Commission Progress Presentation Jul 16 through Aug 10 -- Prepare Cost Estimate and Final Report Week of Aug 13 – ELS to present Final Draft Report Week of Aug 20 – Begin preparation of staff report to Council Sep 11 – Council Agenda posted Sep 18 – Council Presentation?

Attachments: Preferred Plan and Draft Elevations and Sections Surplus Property Committee membership

Lighting, acoustics, and art are important to quality of pool experience.

ELS ELSA R C H I T E C T U R E A N D U R B A N D E S I G N


Meeting Notes To: John Rosenbrock Date: July 19, 2007


Subject: T.F. Meeting No. 4: Bldg Systems Project No: 200704

Meeting Date: July 11, 2007 Location: ELS Offices

Attendees C.O.B. Project Manager: John Rosenbrock, C.O.B. Aquatics: Audrey Cazden, Scott Ferris C.O.B. Sustainability: Billie Romain, Neal Desnoo C.O.B. Disability Services: Paul Church Pool Users Group: Jo Ann Cook, Mark Hendrix Counsilman Hunsaker: Trish Soto (teleconf until 11:00) IDEAS: David Kaneda (until 11:30) Rumsey Engineers: John Bruschi, Peter Rumsey Tipping + Mar: David Mar Cumming LLC: Sandy Gray ELS Architects: Ed Noland, David Petta, Jason Wilkinson

Item Discussion Who Due

1 City of Berkeley Energy Goals. LEED Silver is a target, not necessarily a mandate. C.O.B. aim is to reduce carbon footprint by 80% by 2050 C.O.B. commitment to reducing GHG emissions means limiting the

amount of Natural Gas use Capital costs need to be weighed against operating costs C.O.B. is a member of the Chicago Carbon Exchange, so the payback

analysis should include carbon offset costs

2 Pool Pool should be at 92 – 94 degrees, not 90 – 92 A finger grip pool edge tile detail will be provided as well as recessed “toe

ledges” to be mounted on the pool sides both high and low, to give swimmers not just one but several options for gripping onto while resting.

Aquatics staff is committed to using manual pool covers, which can reduce operating costs by 50%. Optimal R-value to be determined during the design phase, given the constant and relatively minor temperature difference between water and air.

Ultra violet radiation and automated chemical control will help keep chloramines, which produce an objectionable odor, under control. For future reference, Chemtrol brand equipment is not preferred by City.

The gutter circulation will help control the expected high organic load.

3 Electrical. The roof is not expected to be able to contain enough area to allow an

array of both PV's and Solar Hot Water. Since solar hot water is much

Task Force Meeting No. 4, July 11, 2007 Page 2 of 3 Distributed June 19, 2007

more efficient at collecting solar energy than photovolatics, and the project can use all of the hot water produced, makes sense to prioritize solar hot water over PV’s. If a higher efficiency plate glass solar hot water collector is used, and roof area can be freed up, PV's could then be considered. Consider allowing for future PV’s on the parking structure.

T8 tube fluorescents are preferred over compact fluorescent downlights. These sources are both more efficient and generally easier to maintain.

In the natatorium, lighting should be installed so that it is easily maintained from the pool deck.

Maximize use of small, evenly distributed skylights with daylight sensitive lighting controls and stepped dimming.

Utilize astronomic time switch (digital clock) for light switches rather than photocells, which require more maintenance.

Wireless communications for resource efficientcy may justify a LEED Innovation Credit?

4 Mechanical Air temp should be 84 – 88 degrees. Current Old Gym temp is 79 – 84. Utilizing 100% outside air to maximize air quality without mechanical

cooling will mean that on the hottest days, indoor temperatures could exceed 88 degrees, into the high 90’s. (Is this acceptable, especially considering this user group?)

Recycling and dehumidifying pool air is not the preferred system, due to energy, maintenance and maximize air quality issues, but could be specified as an alternate. This system would be a more reliable source for greywater.

Basic estimated breakdown of energy use for this project - 65% Pool heating - 05% Pumping - 10% Space heating - 05% Fans - 10% Domestic hot water heating

Annual carbon consumption may run to 100-200 tons/yr with a standard mechanical system, which is very high, involving purchase of CCX credits

Energy costs may run to $150k with a standard mechanical system Supply air “duct socks” may reduce costs, last longer in high humidity. Find constant sources for greywater, such as from the pool systems, or

as a by-product of heat transfer from exhaust air to intake air, not from seasonal rainwater.

High efficiency (glazed) solar hot water panels v. standard panels v. available roof area v. pool heating costs is a payback calculation that will take place during the design phase.

5 Structural The preferred concept should include budget for an exposed structural

system, to maximize ceiling height and to avoid problematic concealed ceiling systems, and inevitable thermal bridging/condensation.

Structure should not utilize off-the-shelf joists, but have smooth exposed connections to allow for the application of high performance coatings.

6 Architectural. Polycarbonate glazing panels are to be the assumed glazing system. Operable windows are problematic, since they could introduce drafts and

evaporation, increase costs and heat loss. The low roof next to the future parking structure should not be expected

Task Force Meeting No. 4, July 11, 2007 Page 3 of 3 Distributed June 19, 2007


to receive much solar exposure. Green roof will not be a part of the project, due to limited roof area.

7 Cost Approach. CLLC will present costs in an elemental analysis format, not CSI. Use mid 2009 as a start of construction date. Cumming will provide sample estimate from similar project. COB / Cumming will coordinate on COB General Conditions.

CLLC

8 Budget. To be determined. Not necessarily $10m.

9 Matrix. ELS to add as much specificity to the “energy efficiency” category as is possible at this stage.

10 Next Tasks, Next Meeting. Engineering descriptions due 7/18. Costs and draft report to be discussed at next meeting, 8/8 at 11:00.

Milestone Schedule: Apr 26 -- Task Force Meeting No. 1, Field Trip to Santa Clara May 9 – Workshop No. 1 “Vision for a New Warm Water Pool” May 24 – TFM 2: ELS to present 3-5 Plan Options Jun 13 – TFM 3: ELS to present the Preferred Plan Jul 11 – TFM 4: ELS/engineers to describe building systems Jul 11 – Disability Commission Progress Presentation Aug 8 -- Review Cost Estimate and Draft Report Week of Aug 13 – ELS to present Final Draft Report Week of Aug 20 – Begin preparation of staff report to Council Sep 11 – Council Agenda posted Sep 18 – Council Presentation?

Attachments: Mechanical meeting notes 1 pg Building plan, sections, elevations 3 pgs Revised pool agenda handouts 5 pgs Electrical agenda handout 1 pg Mechanical agenda handout 9 pgs Structural agenda handout 7 pgs LEED scoresheet 2 pgs

Notes from Berkeley Warm Pool Task Force Meeting #4, 7/11/07

By: John Bruschi of Rumsey Engineers

HVAC, Plumbing and Alternative Energy Sources

1. Neal Desnoo asked if it is worth investigating whether pool covers are available in various R-values to optimize the heat loss from the pool during unoccupied hours.

2. Jo Ann Cook stated the users’ desire for 92-94 F pool water temperature. She said the existing pool air temperature of 79-82 F is on the cold side. For the new facility, she seemed to indicate 85 F would be better. A 5 degree range for the pool area air temperature needs to be established. (E.g.: Is 83-88 F acceptable?)

3. Billie Romain indicated that the City of Berkeley participates in the Chicago Climate Exchange. So, the design team should be mindful of the pool’s carbon emissions and lifecycle costs should include the cost of carbon offset credits.

4. Billie Romain requested that the design team make dry weather water efficiency a priority in the design.

5. Peter Rumsey roughly estimated 1.2-1.4 sq. ft. of roof space per square foot of pool area would be required for solar hot water heating of the pool water. Glazed solar hot water panels should be considered.

6. Design team should allow for the eventual construction of a 5 story parking garage immediately to the south of the pool building.

7. Alternative sources for pool water heating will preheat the water. The pool water heaters will fine tune the temperature of the water entering the pool.

. . .des ign fac i l i t ies

INTEGRATEDDESIGN

ASSOCIATESINC

C O N S U L T I N GE L E C T R I C A LE N G I N E E R S3 1 4 0 D e L a C r u z B l v d Su i te 110, Santa Clara C A 9 5 0 5 4t e l : 4 0 8 . 5 6 2 . 3 5 6 0f a x : 4 0 8 . 5 6 2 . 3 5 6 1

Electrical Systems Concepts for Consideration for the Berkeley Warm Water Pool

1. LIGHTING

• Provide electric lighting using high efficiency, 4 foot fluorescent, instant start, T8 lamps and ballasts.

• Use compact fluorescent lamps in downlights. • Maximize us of natural daylight - use top lighting strategies and

spectrally selective glass whenever possible. • Provide daylight harvesting controls to automatically reduce electric

lighting levels when daylight is available. • Use occupancy sensor based controls or countdown timers for all

auxiliary rooms. • Provide astronomic time switch based controls for exterior lighting.

2. ELECTRICAL

• Use upsized wiring for branch circuits with long continuous loads. • Capstone Microturbine for cogeneration system for combined high

efficiency hot water and electric power generation.• Roof mounted photovoltaic panels sized to provide up to net 100% of

the electrical load for the building.

3. COMMUNICATIONS

• Use wireless data systems for resource efficient data distribution. • Use wireless security systems for resource efficient security.

99 Linden Street Oakland, CA 94607

510 663-2070 T 510 663-2080 F

www.RumseyEngineers.com

ENERGY EFFICIENT DESIGN

MECHANICAL SYSTEMS CONCEPTS UNDER CONSIDERATION FOR BERKELEY WARM POOL

1. HVAC SYSTEMS

Ventilation rates that exceed ASHRAE 62.1 for optimum indoor air quality. Duct sock for supply air delivery and distribution. Low pressure drop design to minimize fan power. Minimize use of compressors for dehumidification. Heat recovery from exhaust air. Heat and water recovery from dehumidification. Variable Speed Drives on fan motors and pumps. Condensing Boilers with minimum thermal efficiency of 92% compared to standard

efficiency of 84%.

2. PLUMBING SYSTEMS

Condensing Boilers with minimum thermal efficiency of 92% compared to standard efficiency of 84% for domestic hot water.

Rainwater harvesting for pool make-up water.

3. ENERGY SOURCES

Natural gas powered microturbine combined heat and power system. Solar hot water. Solar heating of ventilation air. Photovoltaics.

Mechanical Systems Concepts for Berkeley Warm Pool | Rumsey Engineers | 510 663 2070 | www.rumseyengineers.com | 2E N G I N E E R S

IN

C

HVAC SYSTEMS

Ventilation rates that exceed ASHRAE 62.1 for optimum indoor air quality

Duct sock for supply air delivery and distribution

Low pressure drop design to minimize fan power


IN

C

Eliminate need for dehumidification

100% outside air unit with exhaust air heat recovery

Mechanical Systems Concepts for Berkeley Warm Pool | Rumsey Engineers | 510 663 2070 | www.rumseyengineers.com | �E N G I N E E R S

IN

C

Eliminate need for dehumidification


IN

C

1. Heat Pipe

Heat and water recovery from exhaust air.

2. Air-to-air plate heat exchanger

3. Desiccant Wheel


IN

C

Variable Speed Drives on fan motors and pumps.

Condensing Boilers with minimum thermal efficiency of 92% compared to standard efficiency of 84%.


IN

C

PLUMBING SYSTEMS

Domestic Hot Water Heating

1. Condensing Boilers with minimum thermal efficiency of 92% compared to standard efficiency of 84% for domestic hot water.

2. Tankless Water Heaters

Rainwater harvesting for pool make-up water

Roof

RainwaterCollection

Tank

Pump(Under Building)

ParticleFilter

UVSterilizer

ExpansionTank

Air

Rainwater Catchment System

Water Purification ClosetCity Water(Used in

Dry Months)


IN

C

ENERGY SOURCES

1. Natural gas powered microturbine combined heat and power system.

2. Solar hot water.

3. Solar heating of ventilation air.

4. Photovoltaics

BERKELEY WARM WATER POOL07.11.2007

SCHEME 1: Pre-Manufactured Truss Assembly


SCHEME 1: Pre-Manufactured Truss Assembly

ROOFING

ROOFING BOARD

MTL. DECK

PRE-MANUFACTUREDTRUSSES

INSULATION

RESILIENT CHANNELSDENSGLASS CEILING PANELSINT. VAPOR BARRIER

ACOUSTIC TREATMENT

PROS

INITIAL COSTS

LOW MAINTENANCE

CONS

AESTHETICS

LOWER CEILING HT.

ACOUSTICALLY BRIGHT (TREATABLE)

DIFFICULT MOISTURE SEALS (ALL PENETRA -TIONS)

REQUIRES DROP CEIL -ING ASSEMBLY

THERMAL BRIDGING

VENTILATION


SCHEME 2: Single Steel Pipe Truss


SCHEME 2: Single Steel Pipe Truss

ROOFING

SIP PANELS

INT. VAPOR BARRIER

ACOUSTIC MATERIALSTRUCTURAL/MOISTURESPACER

STL. PIPE TOP CHORD

STL. PIPE WEB MEMBERS

STL. PIPE BOTTOMCHORD

PROS

SIPS:NO THERMAL BRIDGING HIGH INSULATION VALUENO VENTILATION

HIGH CEILING HT.

AESTHETICS

ACCESSIBLE MEP

LIGHT

INTEGRATED ACOUSTICTREATMENT

CONS

COST POTENTIAL

OCCASIONALMAINTENANCE


SCHEME 3: Glulam/Steel Ribbon Truss


SCHEME 3: Glulam/Steel Ribbon Truss

ROOFING

SIP PANELS

INT. VAPOR BARRIER

ACOUSTIC MATERIALSTRUCTURAL/MOISTURESPACER

GLU-LAM TOP CHORD

STL. PLATE WEB MEMBERS

STL. PLATE BOTTOMCHORD

PROS

SIPS:NO THERMAL BRIDGING HIGH INSULATION VALUENO VENTILATION

HIGH CEILING HT.

AESTHETICS

UNIQUE ‘RIBBON’ TRUSS

ACCESSIBLE MEP

LIGHT

WARM MATERIALS

INTEGRATED ACOUSTICTREATMENT

CONS

COST POTENTIAL

OCCASIONALMAINTENANCE


LATERAL SYSTEM DIAGRAM

RIGID ROOF DIAPHRAGMSTRUCTURAL WALLSLATERAL FORCE

LATERALFORCE

UNOBSTRUCTED GLASS CLERESTORY

CMU OR CONCRETE BASE

STRUCTURAL WALLS(BOTH ENDS)

CONCRETE BUTTRESS

LEED-NC Version 2.2 Registered Project Checklist

Yes ? No Sustainable Sites 14 PointsY Prereq 1 Construction Activity Pollution Prevention Required

1 Credit 1 Site Selection 1

1 Credit 2 Development Density & Community Connectivity 1

1 Credit 3 Brownfield Redevelopment 1

1 Credit 4.1 Alternative Transportation, Public Transportation Access 1

1 Credit 4.2 Alternative Transportation, Bicycle Storage & Changing Rooms 1

1 Credit 4.3 Alternative Transportation, Low-Emitting and Fuel-Efficient Vehicles 1

1 Credit 4.4 Alternative Transportation, Parking Capacity 1

1 Credit 5.1 Site Development, Protect of Restore Habitat 1

1 Credit 5.2 Site Development, Maximize Open Space 1

1 Credit 6.1 Stormwater Design, Quantity Control 1

1 Credit 6.2 Stormwater Design, Quality Control 1

1 Credit 7.1 Heat Island Effect, Non-Roof 1

1 Credit 7.2 Heat Island Effect, Roof 1

1 Credit 8 Light Pollution Reduction 1

7 4 3 Total

Yes ? No Water Efficiency 5 Points1 Credit 1.1 Water Efficient Landscaping, Reduce by 50% 1

1 Credit 1.2 Water Efficient Landscaping, No Potable Use or No Irrigation 1

1 Credit 2 Innovative Wastewater Technologies 1

1 Credit 3.1 Water Use Reduction, 20% Reduction 1

1 Credit 3.2 Water Use Reduction, 30% Reduction 1

2 3 0 Total

Yes ? No Energy & Atmosphere 17 PointsY Prereq 1 Fundamental Commissioning of the Building Energy Systems Required

Y Prereq 2 Minimum Energy Performance Required

Y Prereq 3 Fundamental Refrigerant Management Required

2 8 Credit 1 Optimize Energy Performance 1 to 10

3 Credit 2 On-Site Renewable Energy 1 to 3

1 Credit 3 Enhanced Commissioning 1

1 Credit 4 Enhanced Refrigerant Management 1

1 Credit 5 Measurement & Verification 1

1 Credit 6 Green Power 1

2 15 0 Total

continued…

City of Berkeley Warm Water PoolBerkeley, California

Yes ? No Materials & Resources 13 PointsY Prereq 1 Storage & Collection of Recyclables Required

1 Credit 1.1 Building Reuse, Maintain 75% of Existing Walls, Floors & Roof 1

1 Credit 1.2 Building Reuse, Maintain 100% of Existing Walls, Floors & Roof 1

1 Credit 1.3 Building Reuse, Maintain 50% of Interior Non-Structural Elements 1

1 Credit 2.1 Construction Waste Management, Divert 50% from Disposal 1

1 Credit 2.2 Construction Waste Management, Divert 75% from Disposal 1

1 Credit 3.1 Materials Reuse, 5% 1

1 Credit 3.2 Materials Reuse,10% 1

1 Credit 4.1 Recycled Content, 10% (post-consumer + ½ pre-consumer) 1

1 Credit 4.2 Recycled Content, 20% (post-consumer + ½ pre-consumer) 1

1 Credit 5.1 Regional Materials, 10% Extracted, Processed & Manufactured Regional 1

1 Credit 5.2 Regional Materials, 20% Extracted, Processed & Manufactured Regional 1

1 Credit 6 Rapidly Renewable Materials 1

1 Credit 7 Certified Wood 1

5 5 3 Total

Yes ? No Indoor Environmental Quality 15 PointsY Prereq 1 Minimum IAQ Performance RequiredY Prereq 2 Environmental Tobacco Smoke (ETS) Control Required

1 Credit 1 Outdoor Air Delivery Monitoring 11 Credit 2 Increased Ventilation 1

1 Credit 3.1 Construction IAQ Management Plan, During Construction 11 Credit 3.2 Construction IAQ Management Plan, Before Occupancy 1

1 Credit 4.1 Low-Emitting Materials, Adhesives & Sealants 11 Credit 4.2 Low-Emitting Materials, Paints & Coatings 11 Credit 4.3 Low-Emitting Materials, Carpet Systems 11 Credit 4.4 Low-Emitting Materials, Composite Wood & Agrifiber Products 11 Credit 5 Indoor Chemical & Pollutant Source Control 1

1 Credit 6.1 Controllability of Systems, Lighting 11 Credit 6.2 Controllability of Systems, Thermal Comfort 11 Credit 7.1 Thermal Comfort, Design 11 Credit 7.2 Thermal Comfort, Verification 1

1 Credit 8.1 Daylight & Views, Daylight 75% of Spaces 11 Credit 8.2 Daylight & Views, Views for 90% of Spaces 1

7 6 2 Total

Yes ? No Innovation & Design Process 5 Points1 Credit 1.1 Innovation in Design: Provide Specific Title 1

1 Credit 1.2 Innovation in Design: Provide Specific Title 1



1 Credit 2 LEED® Accredited Professional 1

0 5 0 Total

23 38 8 Project Totals (pre-certification estimates) 69 Points

Certified 26-32 points Silver 33-38 points Gold 39-51 points Platinum 52-69 points

ELS ELSA R C H I T E C T U R E A N D U R B A N D E S I G N


Meeting Notes To: John Rosenbrock Date: July 19, 2007


Subject: Disability Commission Project No: 200704.00

Meeting Date: July 11, 2007 Location: North Berkeley Senior Center

Attendees COB: L.Caronna; P.Church, J.Rosenbrock Task Force Representatives: J.A.Cook; J.Kirby ELS: E.Noland, D.Petta Public

Item Discussion

1 General: Notes have been reordered, paraphrased, combined and grouped by topic.

2 Review of Preferred Plan: ELS summarized the public process to date, and the various elements and features of the progress plan, building sections and elevations. The design has been developed thus far in direct response to the comments received at the 5/9 Disability Commission Public Workshop, addressing pool depths, deck storage, access, etc.

3 What is the project budget and schedule? The number of $10,000,000, including an assumed land cost has been used, but setting a budget is really the point of the current feasibility study. The project opening date would not be earlier than 2010, at best.

4 How does the size compare to the existing pool? The preferred plan contains a pool about 1.5 times as large as the existing pool.

5 Does the plan include parking? Not on site; the site is not large enough. If the study concludes that the site is suitable for a replacement pool, the next step will be for the City to negotiate with the District for parking on the adjacent surface lot or structure. The discussions will include such issues as number of spaces, hours, dedicated spaces or not. If the study determines the site is not suitable, parking negotiations will be unnecessary. A BUSD subcommittee will consider the issue of surplus property on August 21.

6 Is the design transferable?: While designed for a specific site, the progress plan is very nearly a generic plan, which could easily fit on other sites either alone or in combination with other pools. Due to the unique needs of warm water pool users, these facilities are rarely sited in proximity to other rec or competitive pools, and are often placed at a distance.

7 The stairs seem to require circulation through the teaching area?: The stairs have 2 functions: 1.) to access the larger body of water; and 2.) as a congregating area, in combination with the smaller teaching / socializing area. The handrails will be relocated to encourage circulation towards the activity pool, and congregating towards the teaching pool.

8 Air Quality and Temperature: Air will not be recycled; only 100% outside air will be used, to maximize air quality. The temperature range will be 84 to 89 degrees.

9 Food will attract roaches? Food is only an optional program element.

Warm Water Pool Disabilty Commission – July 11, 2007 Page 2 of 2 Distributed July 19, 2007


10 The extent of glazing indicated seems to produce glare off the water surface? Glare is a very important design consideration, as is well controlled natural lighting. Sun control issues will be addressed during the later design phases. However, the full northern exposure is the best possible exposure for natural light without glare. The western exposure is often problematic, and may or may not finally include glazing. Evenly distributed skylights are the best source to light the pool bottom, which eliminates surface reflectivity.

11 Have the staffing levels and lifeguard stations been considered? The Aquatics Department is comfortable that it can provide the required staffing for the progress plan. The location of the office, and the addition of side doors directly into the natatorium are to allow the facility to operate without the lobby and locker rooms, at minimum staff levels.

12 What are some of the sustainability and energy efficiency features? Solar panels; air to air heat exchangers; condensate recovery; daylighting; highly efficient equipment; low carbon footprint materials.

13 Attachments: Plans, sections, elevations as presented

Documents

Revised Design Concepts PHASE 3 - Berkeley, California...Revised Design Concepts. ELS A R C H I T E C T U R E A N D U R B A N D E S I G N 2040 Addison Street Berkeley, CA 94704 510.549.2929