Water Efficiency

1
Water Efficiency
L . E . E . D .
Introduction

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• In U.S. 476 Billion gallons of fresh water are
  consumed each day
• Aquifers around the country have dropped more
  than 100 feet since 1940
• Since 1950 industries have reduced their water
  consumption by 36
• Typical 100,000sf. Building with standard water
  conserving devices can save a minimum of 1
  million gallons of water per year
• Alternatives to using potable water sources are
  available for non-sanitary functions

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
2
Water Efficiency
L . E . E . D .
Credits

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• Water Efficient Landscaping
• WE 1.1
• One (1) possible point
• WE 1.2
• One (1) possible point
• Innovative Wastewater Technologies
• WE 2.0
• One (1) possible point
• Water Use Reduction
• WE 3.0
• One (1) possible point
• WE 3.1
• One (1) possible point

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
5
3
Water Efficiency
L . E . E . D .
Water Efficient Landscaping

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• Limit or eliminate the use of potable water for
  landscape irrigation

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
2
4
Water Efficiency
L . E . E . D .
Green Building Concerns

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• Landscape irrigation consumes large quantities of
  potable water, which can be switched to
  non-potable sources.
• Native landscaping with lower irrigation
  requirements tends to attract native wildlife.
• Utility rates for potable water are expected to
  increase dramatically in the next few years.
• Maintaining natural aquifer conditions is
  important to maintain reliable water sources for
  future generations

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
2
5
Water Efficiency
L . E . E . D .
Design Approach

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• Soil and climate analysis
• Compile and follow a seasonal maintenance
  schedule
• Design landscape with indigenous plants
• Install rain or groundwater collection system.
• Establish and maintain greywater system
• Use micro-irrigation, timers, database
  controllers
• Use techniques to maintain plant health such as
• Mulching
• Alternative Mowing
• Composting

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
2
6
Water Efficiency
L . E . E . D .
Water Efficient Landscaping

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• WE 1.1
• Use high efficiency irrigation technology
• Use captured rain or recycled site water
• Implementation should reduce potable water
  consumption for irrigation by 50
• WE 1.2
• Use only captured rain or recycled
  water for an additional 50 reduction
• Do not install permanent landscape irrigation
  systems

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
2
7
Water Efficiency
L . E . E . D .
Water Efficient Landscaping

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• WE 1.1 (1 Point)
• Cut sheets for high efficiency equipment
• Calculations justifying the reduction by 50
• OR
• Provide drawings and a narrative describing the
  rain/recycled water system.
• Including calculations justifying
  the reduction by 50
• WE 1.2 (1 Point)
• Provide drawings and narrative
  describing the water system.
• Including calculations justifying
  the reduction by 50
• OR
• Provide narrative of the landscape
  design describe why permanent
  irrigation system is not
  required

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
2
8
Water Efficiency
L . E . E . D .
Water Efficient Landscaping

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• No referenced standards applicable for this
  section

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
1
9
Water Efficiency
L . E . E . D .
Case Study

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• Pennsylvania Department of Environmental
  Protection's Cambria Office
  ( DEP Cambria )
• This project will be discussed in video
  presentations today

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
1
10
Water Efficiency
L . E . E . D .
Innovative Wastewater Technologies

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• Reduce wastewater generation
• Reduce potable water demand
• Increasing local aquifer recharge

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
1
11
Water Efficiency
L . E . E . D .
Green Building Concerns

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• Graywater from sinks, showers and other sources
  can be reused to flush toilets and urinals.
• Water can be harvested from roof gutters.
• Low-flow fixtures, automatic controls and
  dry fixtures reduce sewage generation.
• On-site wastewater strategies reduce
  infrastructure costs as well as provide
  independence from the public treatment
  systems.
• Costs for wastewater treatment
  recovery systems must balance with
  the anticipated savings

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
1
12
Water Efficiency
L . E . E . D .
Design Approach

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• Evaluate wastewater inventory
• Where can graywater be substituted for potable
  water.
• Estimate available graywater generated on the
  site
• Determine quantity of wastewater requiring
  treatment
• Select the most suitable treatment system
• Check local health department for regulations
  governing graywater systems
• Consider on-site treatment systems
• Constructed wetlands, etc.

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
1
13
Water Efficiency
L . E . E . D .
Innovative Wastewater Technologies

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• WE 2.0
• Reduce use of municipally provided potable water
  for building sewage movement by a minimum of 50
• OR
• Treat 100 wastewater on site to governing
  standards

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
1
14
Water Efficiency
L . E . E . D .
Case Study

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• WE 2.0
• Provide narrative with measures implemented to
  reduce potable water sewage conveyance including
  calculations to justify 50 reduction.
• OR
• Provide drawings, specifications and narrative
  demonstrating 100 of building wastewater volume
  is directed to on-site wastewater treatment
  system.
• Attach letter from local health department with
  approval.

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
1
15
Water Efficiency
L . E . E . D .
Innovative Wastewater Technologies

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• No referenced standards applicable for this
  section

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
1
16
Water Efficiency
L . E . E . D .
Case Study

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

• CBF Merrill Environmental Center

Points
1
17
Water Efficiency
L . E . E . D .
Water Use Reduction

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• Maximize water efficiency within building, to
  reduce the burden on
• Municipal water supplies
• Wastewater systems
• Waterless urinals
• Composting toilets
• Rainwater collection

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
2
18
Water Efficiency
L . E . E . D .
Green Building Concerns

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• Toilet flushing consumes the most water in
  residential and commercial buildings.
• Potable water conservation reduces energy use and
  chemical inputs at municipal water treatment
  works
• Water consumption reductions minimize overall
  building operating costs.
• Water use reductions, allow municipalities
  to reduce capital investment needed
  for water supply wastewater
  treatment infrastructure.

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
2
19
Water Efficiency
L . E . E . D .
Design Approach

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• Develop water use inventory that includes all
  water consuming fixtures, equipment, and seasonal
  conditions
• Consider ultrahigh efficiency or dry fixtures
  control technologies like
• Toilets, Faucets, Dishwashers, etc.
• Check local health department for governing
  regulations
• Public buildings
• Educate users in operation and overall scheme of
  system
• Specify install self-closing or electronic
  faucets, particularly in high use public areas.

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
2
20
Water Efficiency
L . E . E . D .
Water Use Reductions

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• WE 3.1 (1 Point)
• Use strategies which combine to use 20 less
  water than baseline calculated for building
  (excluding irrigation) after meeting EPACT of
  1992 fixture performance requirements.
• WE 3.2 (1 Point)
• Exceed the potable water use reduction by an
  additional 10

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
2
21
Water Efficiency
L . E . E . D .
Water Use Reductions

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• WE 3.1 (1 Point)
• Provide cut sheets for all water consuming
  fixtures with water conservation specifications
  highlighted to demonstrate that fixtures meet or
  exceed performance requirements of EPACT 1992
• Provide water budget calculation to
  justify 20 reduction of occupancy
  potable water consumption
• WE 3.2 (1 Point)
• Same as WE 3.1 justify 20 reduction of
  occupancy potable water consumption

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
2
22
Water Efficiency
L . E . E . D .
Referenced Standards

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• The Energy Policy Act (EPACT) of 1992
• Was promulgated by the US Government
• Addresses a wide variety of environmental
  concerns water use in buildings

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
2
23
Water Efficiency
L . E . E . D .
Conclusion

• Introduction
• Credits
• Water Efficient Landscaping
• Innovative Wastewater Technologies
• Water Use Reduction
• Conclusion

• Water Efficient Landscaping
• Credit 1.1 (1 Point)
• Credit 1.2 (1 Point)
• Innovative Wastewater Technologies
• Credit 2.0 (1 Point)
• Water Use Reduction
• Credit 3.1 (1 Point)
• Credit 3.2 (1 Point)
• Total Points

Sections

• Intent
• Green Building Concerns
• Design Approach
• Requirements
• Submittals
• Referenced Standard
• Case Studies

Points
5