^_^
L P A's Green huture for Laboratories
A Case Study
Of the Kansas City
Science & Technology Center
F
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Kansas City Science & Technology Center
300 Minnesota Avenue
Kansas City, Kansas 66101
To obtain copies of this report, contact:
U.S. EPA Headquarters
Sustainable Facilities Practices Branch (3204R)
1200 Pennsylvania Ave., NW
Washington, DC 20460
www.epa.gov/greeningepa
EPA-200-F-03-001
May 2003
Recycled/Recyclable. Printed with vegetable oil base inks on
100% postconsumer process chlorine-free recycled paper.
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Introduction
Kansas City, Kansas, has a new green building that's
going for the gold. The U.S. Environmental Protection
Agency's (EPA) Region 7 laboratory, known as the
Kansas City Science & Technology Center (KCSTC), is
applying for a Gold Level sustainable design rating from the U.S.
Green Building Council's Leadership in Energy and Environmental
Design (LEED™) program. For more than 7 years, a dedicated team
of individuals and agencies has pursued a sustainable approach to
the development and construction of this new laboratory facility.
The Center is one of 10 EPA regional laboratories throughout the
country that provide monitoring, analytical support, and data
assessments. In the mid-1990s, EPA realized that effective imple-
mentation of the Kansas City laboratory's mission was no longer
feasible in its existing location, which it had occupied for 30 years.
In deciding to construct and occupy a new laboratory building,
EPA incorporated lessons it learned when successfully designing
and building its Region 7 headquarters office building in 1999.
That project showcased many green features and strategies that
could be incorporated in the construction and operation of the
regional lab. More information about the Region 7 green office
building project can be found at .
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JPCM.
Native flower insets on main lobby desk.
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Kansas City Science & Technology Center
Acquisition, Development, & Construction Team
For more information please contact:
CB Richard Ellis (developer/owner): www.cbre.com
The Clark Enerson Partners (architect/engineers of record): www.tcep.net
Commercial Mechanical, Inc. (mechanical subcontractor): www.cmidiv15.com
EPA Headquarters Facilities Management Services Division (planning, aquisition,
project management): www.epa.gov/greeningepa
EPA Region 7 Environmental Services Division; Air, RCRA and Toxics Division;
Office of Policy and Management (tenant planning/construction review):
www.epa.gov/region07/p2/r7lab.htm
Hoefer Wysocki Architects (design architect): www.hwa.net
Koll Construction (design builder/LEED™ certification coordinator):
www.kollconstruction.com
Lillie & Company (commissioning agent): www.lillienco.com
SKCE Electric, Inc. (a Faith Technologies, Inc. company)
(electrical subcontractor): www.webrytesolutions.com/skce/home.htm
Unified Government of Wyandotte County, Kansas City, Kansas (land donor):
www.wycokck.org
U.S. General Services Administration (GSA) Region 6 (acquisition, project
management): www.gsa.gov/portal
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Laboratory Building Requirements — Design/Selection Process
Atypical laboratory uses far more energy and water per
square foot than a typical office building because of
intensive ventilation requirements and other health
and safety concerns. This project employed as many
energy, resource, and water-efficient features as possible in its
design and construction to preserve natural resources, ensure
occupancy health, and serve as a model for future laboratory design.
The construction and operation of the Kansas City Science &
Technology Center was contracted as a build-to-suit facility with
a 20-year lease. As such, EPA and GSA selected the development
team through a design competition and source selection process
conducted in two stages. First, teams consisting of a developer/
owner, design builder, and architect/engineer submitted a general
qualifications bid for designing and constructing a green laboratory.
Then, EPA and GSA selected four teams to move forward with an
actual building proposal based on the Solicitation for Offers (SFO).
All bids required a narrative explaining why particular architecture,
sustainability, and energy-efficient features were chosen, and how
they would reduce resource use in construction and building
operation. The U.S. Green Building Council's LEED™ program
provided the framework for measuring achievements in each
of these elements.
KCSTC Vital Statistics
Site:
Access:
Size:
Occupancy:
Completion:
Brownfield redevelopment site
Two blocks from EPA's Region 7 Office
and on Metro bus line
72,100 gross square feet
Up to 75 occupants
Spring 2003
3
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Green Features Requested in the SFO
The SFO included the following language to ensure that
construction features and the facility's operation would promote
energy efficiency, water conservation, and environmentally
preferable materials and design. The SFO also called for the project
to be LEED™ certified, as explained on the next page.
Energy Efficiency
• Consideration of building siting
• Passive solar design approaches
• Use of energy-efficient lighting
• Daylighting
• Energy-efficient building shell design
• Low-energy glass
• Efficient mechanical systems
• Minimization of waste energy
• Recapture of waste energy streams
• Renewable/innovative energy sources
• Technologically advanced building and
mechanical control systems
• Energy modeling conducted upon
completion of design to identify
additional conservation options
Water Conservation
• Low-flow plumbing fixtures
• Water-efficient mechanical system design
• Landscape design using native species
• Minimal water for irrigation (e.g. drip
system)
• Building site that considers water use,
retention, and reuse
Resource Conservation
• Use of materials with recycled content
at or above average recycled content
percentages according to LEED™
• Use of materials that are manufactured,
packaged, or transported in a way that
reduces energy or material expenditures
• Construction period recycling and
waste minimization
• Designing, building, and operating the
building to accommodate EPA's active
recycling program
Protection of the Ozone Layer
• Avoidance of chlorofluorocarbons
(CFCs) as refrigerants
• Avoidance of blowing agents
for insulation
Support of Sustainable Forestry
Practices
• No consumptive use of endangered
rainforest species
• Wood products from certified
sustainable sources
Protection of Human Health
• Use of non-leaded paints
• Provision of plumbing systems that
prevent elevated lead levels in water
Indoor Air Quality
• Careful placement of exhaust and air
intakes to prevent cross-contamination
• Consideration regarding radon in
the building
• Protection of the heating and cooling
(HVAC) system during construction
• Use of low volatile organic compound
(VOC) adhesives, paints, sealants, and
caulks
• Construction period installation
sequencing
• Sensitive janitorial and cleaning
approaches during the building's
operating life
• No use of asbestos or asbestos-
containing materials
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Final Design: The LEED™ Scorecard for KCSTC
U.S. Green Building Council
LEED" System
Leadership in Energy and Environmental Design (LEED™)
is a green building rating system developed by
the U.S. Green Building Council. The goal of LEED™ is
to encourage design and construction practices that
significantly reduce or eliminate the negative impact of
buildings on the environment and occupants based on
existing, proven technologies.
LEED™ certification is achieved through a rating system
that evaluates: sustainable site planning; the safeguarding
of water and water efficiency; energy efficiency and
renewable energy; conservation of materials and resources;
and indoor environmental quality. Applicants receive one
to two points for achievement in each of 69 subcategories.
See the KCSTC LEED™ scorecard on page 6.
LEED™ has four levels of certification: LEED™ Certified
(26 to 32 points); Silver Level (33 to 38 points); Gold Level
(39 to 51 points); and Platinum Level (52 to 69 points).
More information about LEED™ can be found at
.
T
he KCSTC will apply for 46 points, a Gold Level rating using
the LEED™ version 2.0 Scorecard that is being submitted for
approval (see page 6).
Some of the most notable features of the building are described
in more detail on the following pages.
Lessons Learned
ncluding green building attributes and LEED™ certification
requirements from the start ensured an environmental focus
throughout the project.
Major benefits resulted from having the Construction
Superintendent acquire LEED™ Accredited Professional credentials,
because he was responsible for LEED™ documentaion and for
reviewing all subcontractor material for "green" content.
Collecting data at each phase of construction was the least costly
and most efficient method to attain LEED™ certification.
5
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The Submitted LEED™ Scorecard for the KCSTC
46
23
Total Project Score
Certified 26 to 32 points Sliver 33 to 38 points Gold 39 to 51 points Platinum 52 or mote points
12
Sustainable Sites
Possible Points 14
Y
Y
1
? N
Preraq 1
Credit 1
1 Credits
Cra.1:! 3
Credit 4.1
Credit 4.2
Credit 4.3
Credit 4.4
Credit 5.1
.Credit 5.2
Credit 6.1
1 Credit 6.2
Credit 7.1
.Credit 7.2
Credits
Erosion & Sedimentation Control
Site Selection
Urban Redevelopment
Brownfleld Redevelopment
Alternative Transportation, Public Transportation Access
Alternative Transportation, Bicycle Storage & Changing Rooms
Alternative Transportation, Alternative Fuel Refueling Stations
Alternative Transportation, Parking Capacity
Reduced Site Disturbance, Protect or Restore Open Space
Reduced Site Disturbance, Development Footprint
Stormwater Management, Rate and Quantity
Stormwater Management, Treatment
Landscape & Exterior Design to Reduce Heat Islands, Non-Roof
Landscape & Exterior Design to Reduce Heat Islands, Roof
Light Pollution Reduction
4
1
Y ? N
1
1
1
1
1
1 Water Efficiency
Possible Points 5
Credit 1.1 Water Efficient Landscaping, Reduce by 50% 1
Credit 1.2 Water Efficient Landscaping, No Potable Use or No Irrigation 1
credit 2 Innovative Wastewater Technologies 1
credit 3.1 Water Use Reduction, 20% Reduction 1
credit 3.2 Water Use Reduction, 30% Reduction
1
Energy & Atmosphere
Possible Points 17
Fundamental Building Systems Commissioning
Minimum Energy Performance
CFC Reduction in HVAC&R Equipment
Optimize Energy Performance, 20% New/10% Existing
Optimize Energy Performance, 30% New 720% Existing
Optimize Enenjy Performance, 40% New/30% Existing
Optimize Energy Performance, 50% New/40% Existing
Optimize Enenjy Performance, 60% New/50% Existing
Renewable Energy, 5%
Renewable Energy, 10%
Renewable Energy, 20%
Additional Commissioning
Ozone Depletion
Measurement & Verification
Green Power
Materials & Resources
Possible Points
Possible Points 13
Y
1
1
1
1
1
1
Preraq 1
1 Credit 1.1
1 Credit 1.2
1 Credit 1.3
Credit 2.1
Credit 2.2
1 Credit 3.1
1 Credit 3.2
Credit 4.1
Credit 4.2
Credit 5.1
Credit 5.2
1 Credit 6
1 Credit?
Storage & Collection of Recyclables
Building Reuse, Maintain 75% of Existing Shell
Building Reuse, Maintain 100% of Existing Shell
Building Reuse, Maintain 100% Shell & 50% Non-Shell
Construction Waste Management, Divert 50%
Construction Waste Management, Divert 75%
Resource Reuse, Specify 5%
Resource Reuse, Specify 10%
Recycled Content, Specify 25%
Recycled Content, Specify 50%
Local/Regional Materials, 20% Manufactured Locally
Local/Regional Materials, of 20% Above, 50% Harvested Locally
Rapidly Renewable Materials
Certified Wood
Indoor Environmental Quality
Possible Points
Y
Y
1
1
1
1
1
1
1
1
1
1
Prereq 1
Prereq2
Credit 1
1 Credits
Credit 3.1
Credit 3.2
Credit 4.1
Credit 4.2
Credit 4.3
Credit 4.4
1 Credits
1 Credit 6.1
Credit 6.2
Credit 7.1
Credit 7.2
1 Credit 8.1
1 Credit 8.2
Minimum IAQ Performance
Environmental Tobacco Smoke (ETS) Control
Carbon Dioxide (CO.,) Monitoring
Increase Ventilation Effectiveness
Construction IAQ Management Plan, During Construction
Construction IAQ Management Plan, Before Occupancy
Low-Emitting Materials, Adhesives & Sealants
Low-Emitting Materials, Paints
Low-Emitting Materials, Carpet
Low-Emitting Materials, Composite Wood
Indoor Chemical & Pollutant Source Control
Controllability of Systems, Perimeter
Controllability of Systems, Non-Perimeter
Thermal Comfort, Comply with ASHRAE 55-1992
Thermal Comfort, Permanent Monitoring System
Daylight & Views, Daylight 75% of Spaces
Daylight & Views, Views for 90% of Spaces
Innovation & Design Process
Possible Points
Credit 1.1 Innovation In Design: Recycle Content - Achieved 107%
Credit 1.2 Innovation In Design: Local/Regional Materials - Achieved 76%
Credit 1.3 Innovation in Design: Energy Recovery Technology
Credit 1.4 Innovation in Design: Variable Speed Drive Technology
•credit 2 LEED™ Accredited Professional
6
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Final Design: Notable Features
Energy
E
nergy efficiency was one of the primary goals for the design
of the KCSTC, and every effort was made to incorporate
energy-efficient design systems into all aspects of
construction and operation.
Energy Modeling
After EPA and GSA chose a design/build team, preliminary designs
were run through an energy model (DOE-2) to compare energy
savings of the design to a "normal" (compliant with ASHRAE/
IESNA Standard 90.1-1999 Energy Standard for Buildings) building
and to determine additional measures that could be incorporated
into the lab for improved energy efficiency. Based on the results
(which already showed 38 percent reduced energy costs and 44
percent reduced energy use over an ASHRAE 90.1-1999 compliant
building), a number of additional energy conservation measures
were incorporated, including:
Replacement of laboratory canopy hoods with
smaller, variable air volume (VAV) fume hoods.
Use of carbon dioxide sensors in the conference,
lunch, and reception areas ensure that air flow is
increased only when necessary to accommodate
additional people in these rooms.
Addition of a plate and frame heat exchanger
to the cooling tower condensing water system,
which reduces energy demand for special
laboratory equipment.
Energy-Efficient HVAC System
The KCSTC heating, air conditioning and venti-
lation system (HVAC) includes the following
energy-efficient design features:
• Five modular natural gas-fired boilers,
which are more efficient than one
traditional mega-boiler, because individual
smaller boilers are automatically activated
as heat demand increases.
Three small, water-cooled chillers, including
one primary variable-speed chiller: one
chiller/condenser that employs water heat
recovery from other systems to keep
laboratory temperatures constant when
increased air flow is required: and one
back-up chiller that can be activated as
needed (e.g., with building expansion).
VAV and cooling systems activated by
conference room and common space
carbon dioxide sensors.
Programmable thermostats.
Plate and frame heat exchanger.
Overhead snorkels and VAV fume hood.
Small water-cooled chillers.
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Current modeling predicts the KCSTC will use approximately
270,000 BTUs of energy per gross square foot per year,
which translates to a 46.8 percent savings over a "normal"
energy-efficient building.
The following table compares nine categories of energy
use and shows how the KCSTC can save 16,496,670,000
BTUs per year compared to the estimated consumption of
a comparable conventional facility without the same
energy-efficient features.
Anticipated Annual Delivered Energy Savings Attributable
to the Green Design of the KCSTC
(Baseline=constant volume HVAC system)
Category Energy Type "Normal" KCSTC Energy
Building (1000's of BTU) Savings
(1000's of BTU)
Cooling towers
Fans (interior
ventilation)
Interior lighting
Exterior lighting
Office equipment
Pumps
Space cooling
Space heating
Space heating
Water heating
Total
Electric
Electric
Electric
Electric
Electric
Electric
Electric
Electric
Gas
Gas
766,621
7,158,583
1,202,383
40,362
1,453,276
839,250
3,196,015
38,959
20,283,300
724,200
35,702,950
309,173
2,618,662
1,244,073
40,632
1,453,276
543,302
1,505,365
34,168
10,841,600
616,300
19,206,280*
60%
63%
-4%
0%
0%
35%
53%
12%
47%
15%
54% (46.8%**)
* SOURCE: LEED™ Credit 1,2 Optimize Energy Performance, 30 percent supporting documentation
prepared by Fred Porter, Architectural Energy Corporation, April 3, 2002,
* * Reduction per LEED™ Modeling Protocol for unregulated or plug electrical loads.
8
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Final Design: Notable Features
Daylighting and Energy-Efficient Lamps
Incorporating an energy-efficient lighting scheme was
accomplished through the use of:
• Low-energy glass for all windows.
• Energy-efficient T-5 and halogen lamps for indirect lighting
and T-8 lamps for direct lighting.
• Motion-detector lights installed in laboratories.
• A high-ceiling, open-bay office with large clerestory windows
to allow natural light into the building.
Clerestory windows provide natural daylighting to open bay offices.
Laboratory corridor with abundant natural daylighting and views
of landscaped courtyard.
Pendant light fixtures, providing direct and indirect lighting to second floor
open bay offices.
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RESOURCE CONSERVATION
T
he design and construction of the KCSTC took energy
efficiency and resource conservation a step further by
looking outside the walls of the building for other
innovative environmental initiatives.
Materials
Considering all sources of environmental impact from the
construction of the KCSTC, the design/build team placed the
highest priority on obtaining materials locally. Local materials
use minimizes fuel consumption and transportation costs, while
stimulating the local economy. Approximately 76 percent of
construction and furnishing materials were obtained from within
a 500-mile radius of the site.
Transportation
Main entrance under construction.
Alternative transportation options have also been accommodated
in the design of the KCSTC. Electric car recharging stations,
designated car pool parking spaces, bicycle storage, and a shower
facility are all located at the building. In addition to these building-
specific features, the site is accessible to Kansas City's Metro bus
service, further reducing the energy consumed by employees and
visitors to the building.
Electric car recharging station in north parking lot.
1 D
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Final Design: Notable Features
RecycI ing
Construction activities typically generate solid waste (an
estimated 28 percent of landfill material in the United
States), but much of this is "clean waste" and easily
recyclable. In keeping with the mission of reducing
resource use in any way possible, construction of the KCSTC was
completed with a comprehensive Construction Waste Recycling Plan
for concrete, metals, wood, asphalt, and paper.
In addition to training all demolition and construction workers
about the recycling plan, the general contractor implemented
a cost incentive program for construction waste recycling. All
materials placed in the onsite, labeled recycling bins were accepted
without charge to the subcontractors. On the other hand, all
materials placed in the general refuse bin were subject to a cost-
per-ton fee that was charged to the subcontractor's account.
The following table shows some of the materials recycled during
the construction of the KCSTC. In addition to conventional
recycling, asphalt paving cleared from the original site was milled
and reused later as backfill, saving landfill, transportation, and
disposal costs.
THE KCSTC'S RECYCLING PLAN DIVERTED
72 PERCENT OF CONSTRUCTION DEBRIS
FROM LANDFILLS.
Estimated Amount of Materials Recycled
During Construction of the KCSTC
Materials
Amounts Percent of
(tons) Waste Stream
by Volume
Concrete
Rebar and steel
Non-treated wood
Total recycled material
630
17
18
665
68%
2%
2%
72%
1 1
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To conserve resources and support recycling within the building
industry, the construction and furnishing of the KCSTC included
numerous materials with high recycled content. In fact, so many
materials exceed above-average recycled content that the lab
expects to receive credit through LEED™ for 107 percent recycled
Recycled content ceiling tiles.
Recycled content carpet.
Recycled content flooring.
content materials use. (LEED™ adds additional percentage points
to projects exceeding 50 percent recycled content.) Examples of
some of the recycled content products incorporated into the
KCSTC are shown in the following table.
Approximate Recycled Content of
Materials Used for Construction and
Furnishing of the KCSTC
Total Recovered
Materials Material (%)
Construction
Concrete (fly-ash content
by weight)
Drywall
Insulation
Metal Studs
Rebar
Reinforced Steel
Structural Steel Joists
Miscellaneous Steel
Window Glass
3%
31%*
25%*
25%*
90%
90%
100%
100%
20%
Furnishing
Acoustic Ceiling Tile 65% to 70%
Carpet 25%
Ceramic Tile Flooring 70%
1 2
* Aggregate recycled content includes postconsumer and
postindustrial materials.
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Final Design: Notable Features
Water Conservation
The KCSTC was designed from the ground up with water
conservation in mind. Low-flow plumbing fixtures
and water-efficient landscaping are all employed to
minimize water use. The HVAC system consumes the
most water in the facility. To reduce this use of city-supplied
potable water, the HVAC system is connected to a rooftop
rainwater recapture system.
Rooftop Rainwater Recapture System
The KCSTC rooftop rainwater recapture system directs
water from a portion of the roof into pipes that lead directly
into a 1,500-gallon underground sediment tank near the
building's mechanical room. There, the water is held so
that any particulate matter can settle out. Following
particulate removal, water flows from the top of the
sediment tank into a 10,000-gallon, pre-cast concrete,
fiberglass-lined underground tankjust outside the building.
Finally, a sump pump in the holding tank is used to supply
the pressure tank, which provides graywater for toilet
flushing, cooling tower makeup, and landscape faucets.
Based on Kansas City's average annual rainfall, the rooftop
rainwater collection system is expected to supply
approximately 763,000 gallons of water per year.
White pipes on right carry rain
water drained from the roof.
Roof drains.
Pressurized holding
tank for the rain water.
1 3
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Landscaping
Xeriscaping is a landscape design concept used at the KCSTC
that focuses on the use of native plants to reduce the need for
watering and irrigation. It also considers soil types and employs the
use of mulches to retain soil moisture. This sustainable landscaping
design will also save money on landscape maintenance fees.
Future Water Conservation Measures
The KCSTC is already looking to innovate and improve water
conservation even further. Discussions are underway to develop
a de-ionized water recycling system so that less water will need to
be used and processed for scientific procedures. In addition, there
are plans to collect air handler condensate water to add to the
rainwater storage tank for reuse throughout the building, Current
projections indicate that 100 gallons of water per hour could be
saved during peak (summer) cooling with this recapture system.
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Final Design: Notable Features
Indoor Air Quality
0
ccupancy health and comfort is of utmost importance to
EPA. Great care was taken to ensure the highest indoor air
quality in the KCSTC.
Low-VOC paint, adhesives, glues, carpet, and floor tiles were used
for finishing the building. Sequencing the finishing and furnishing
of the building was also essential to address indoor air quality.
Nonabsorptive materials were installed first. Later, after chemical
odors dissipated, absorptive materials such as carpet, ceiling tile,
and furniture were installed. Finally, before occupancy, the HVAC
system was flushed and new fresh air filters were installed.
Separated utility corridor provides minimal disruption for maintenance of
mechanical equipment, electrical, and plumbing for laboratories.
During construction, the HVAC system and duct work were sealed on
a daily basis to prevent infiltration of any dust, chemicals, or odors
due to construction.
1 5
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Compliance With Executive Orders
With the completion of the KCSTC, EPA has
succeeded in leading by environmental example.
The numerous environmentally friendly innovations
and features incorporated into the building's
design and construction highlight EPA's commitment to reducing
E.0.13101—Greening the Government
Through Waste Prevention, Recycling,
and Federal Acquisition
• Specified environmental and recycling provisions in the SFO
and design/build contract.
• Used recycled-content building materials, including ceramic
tile flooring, structural steel and concrete, acoustic tile,
window glass, aluminum frames, carpet, and gypsum.
• Developed a recycling plan for construction materials,
including concrete, wood, steel, duct work, copper pipe,
and paper. Milled and reused asphalt paving material as
fill onsite.
• Avoided CFC-based refrigerants in building systems.
• Used low-VOC carpets, paints, adhesives, flooring, sealants,
and furnishings.
• Accommodated storage and collection of recyclables
(e.g., paper, glass, plastics) during occupancy.
E.G. 13149—Greening the Government Through
Federal Fleet and Transportation Efficiency
• Provided electric vehicle recharging stations.
natural resource use while providing functional, attractive space
in which to carry out its mission. While accomplishing this task,
EPA has also fulfilled its federal obligations under a number of
environmental Executive Orders (E.O.s). The following is a summary
of KCSTC compliance features:
E.0.13123—Greening the Government
Through Efficient Energy Management
• Used energy-efficient lighting, including motion-detector
lights, and energy-efficient T-5J-8, and halogen lamps.
• Reduced the need for electric lighting by designing a
high-ceiling, open-bay office with clerestory windows.
• Installed energy-efficient heating and cooling systems,
including VAV ventilation systems for offices and laboratories,
programmable thermostats, occupancy sensors, variable-
speed drives on HVAC equipment, and VAV fume hoods.
• Installed ENERGY STAR® reflective roofing to reduce the
cooling load for the building.
• Installed a rooftop rainwater recovery system.
• Installed low-flow plumbing fixtures in bathrooms.
• Used native landscaping/xeriscaping.
E.0.13150—Federal Workforce Transportation
• Sited building close to Metro bus service.
• Designed car pool stations and designated car pool parking.
• Provided bike racks and shower facilities for commuters.
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Publication Credits:
• Dan Amon, EPA-HQ
• Doug Benton, GSA Region 6
• Cathy Berlow, EPA-HQ
• Dennis demons, GSA Region 6
• Caroline Cievenger, Architectural Energy Corp.
• Bucky Green, EPA-HQ
• Bob Greenall, EPA Region 7
• Ken Henton, Hoefer Wysocki Architects
• Chris Hess, EPA Region 7
• Abbas Keshavarz, EPA-HQ
• Ron Kowalski, Koll Construction
• Bill Ridge, EPA-HQ
• Ina Square, EPA Region 7
• Andy Stepp, The Clark Enersen Partners
• Stephen Swalwell, Architectural Fotographics
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