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8/6/2019 LEED GA Sustainable Sites
http://slidepdf.com/reader/full/leed-ga-sustainable-sites 1/27
LEED GA STUDY GROUP:
SUSTAINABLE SITES
8/6/2019 LEED GA Sustainable Sites
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LEED NEW CONSTRUCTION
CHECKLIST
SUSTAINABLE SITES
8/6/2019 LEED GA Sustainable Sites
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SUSTAINABLE SITES
Prerequisite 1: Construction Activity Pollution Prevention
This prerequisite is intended to limit the amount of erosion, dust andwater sedimentation created by construction activities.
8/6/2019 LEED GA Sustainable Sites
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Prerequisite 1: Construction Activity Pollution Prevention
During construction, there can be a lot of pollution going on,
especially when it rains. Pollution on construction sites can be
reduced by controlling:
Soil Erosion Airborne Dust Generation
Waterway Sedimentation
Implementation
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Prerequisite 1: Construction Activity Pollution Prevention
Provide ESC (Erosion and Sedimentation Control) plan withconstruction documents and specifications.
Goal is to prevent the loss of soil, pollution, and
sedimentation.
Follow the EPA 2003 (Environmental Protection Agency)standards.
CGP (Construction General Permit) outlines how to
comply with NPDES program. CGP covers sites greater
than 1 acre, but LEED covers all.
For more info: http://cfpub.epa.gov/npdes/stormwater/cgp.cfm
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Prerequisite 1: Construction Activity Pollution Prevention
Ways to control sedimentation:
Stabilization: i.e. seeding and mulching
Structural: i.e. silt fences, earth dikes, sediment traps
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Credit 1: Site Selection (1pt)
Intent: Develop sites that are already previously developed. Avoid developinginappropriate sites.
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Credit 1: Site Selection (1pt)
Forbidden Sites:
Below 5ft. above the 100 year flood elevation as defined by FEMA
Within 100ft. of Wetlands as defined by CFR (Code of Federal
Regulations)
Prime farmland as defined by USDA
Within 50ft. of a water body (lakes, seas, rivers, etc.) Comply with
Clean Water Act.
Habitat for any endangered or critical species.
Public parkland (Park Authority projects are exempt)
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Credit 1: Site Selection (1pt)
Forbidden Sites:
Anything less than 5ft. above the 100 year flood elevation as
defined by FEMA
What this means: A site plan must be submitted that shows that you are at
least 5¶ above the 100 year flood line if either of those lines cross the site. If
neither line crosses the site, indicate the nearest USGS elevation contour
line.
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Credit 2: Development Density & Community Connectivity (5pts)
The intent of this credit is to develop in areas that have existinginfrastructure, and preserve natural habitat.
Option 1: Previously developed site in a community with a density of
60,000sf per acre net.
Option 2: Previously developed site within 1/2 mile of a residential zone with
10 units per acre and 1/2 mile from basic services.
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Credit 3: Brownfield Redevelopment (1pt)
Rehabilitate existing damaged/contaminated sites.
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Credit 4.1: Alternative Transportation: Public Transportation
Access (6pts)Reduce automobile use to help reduce pollution.
Locate the project
within 1/2 mile of some
sort of light rail system
or 1/4 mile away from
one or more bus stops
that are for 2 or more
bus lines.
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Credit 4.2: Alternative Transportation: Bicycle Storage &
Changing Rooms (1pt)Reduce the pollution caused by automobile use.
Bike Racks - within 200 yards of entrance
Bike Racks - for 5% of all building users
Showers - for 0.5% of all FTE occupants
Residential - bike racks for 15% of occupants
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Credit 4.3: Alternative Transportation: Low Emission & Fuel
Efficient Vehicles (3pts)
The intent of this credit is to reduce the environmental impact caused by
automobile use.
Option 1: Provide low emitting or fuel efficient vehicles for 3% of
FTE occupants & preferred parking
Option 2: Preferred parking for low-emitting vehicles for 5% of
parking capacity
Option 3: Alternate fuel refueling stations for 3% of parking
capacity
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Credit 4.3: Alternative Transportation: Parking Capacity (2pts)
Reduce the environmental impact caused by vehicle use
Option 1: Parking size not to exceed minimum needed & 5% for
car/vanpools (non-residential)
Option 2: Projects that have parking for < 5% & for car/vanpools
(non-residential)
Option 3: No more than minimum needed & carpooling
(residential)
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Credit 5.1: Site Development: Protect or Restore Habitat (1pt)
Promote biodiversity by conserving existing natural areas and or restoring damaged areas.
These practices involve
protecting greenfield sites,
restoring previouslydeveloped sites including
the possible use of a
vegetated roof.
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Chart from: www.leeduser.com/credit/NC-2009
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Credit 6.1: Storm Water Design: Quantity Control (1pt)
The intent of this credit is to limit the disruption of the natural hydrology.
CASE 1: Existing imperviousness less than or equal to 50%
CASE 2: Existing imperviousness that is greater than 50%
* To earn this credit with previously undeveloped sites, you¶ll need to avoid any
increase in runoff, while on mostly impervious developed sites, you¶ll need to
reduce runoff.
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Chart from: www.leeduser.com/credit/NC-2009
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Credit 6.2: Storm Water Design: Quality Control (1pt)
Reduce or eliminate water pollution by reducing the amount of impervious cover on a site.
In order to get awarded a point for this credit, there must be a stormwater
managament plan that reduces impervious cover and treats the stormwater runoff
from 90% of the average annual rainfall using acceptable best managementpractices (BPMs).
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Credit 6.2: Storm Water Design: Quality Control (1pt)
Reduce or eliminate water pollution by reducing the amount of impervious cover on a site.
Possible Strategies:
Green Roofs
Pervious PavementRain Gardens
Vegetated Swales
Rainwater Recycling
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Credit 7.1: Heat Island Effect: Non-Roof (1pt)
Reduce the Heat Island Effect for developed areas.
Option 1:
Non-Roof Hardscape Surfaces
50% of roads, sidewalks,courtyards, or parking lots are:
Light colored with high Solar
Reflectance Index (SRI > 29)
Open grid paving
Shaded by trees
Shaded by structures (with
SRI > 29)
Shaded by solar panels
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Credit 7.1: Heat Island Effect: Non-Roof (1pt)
Reduce the Heat Island Effect for developed areas.
Option 2:
On-Site Parking
50% of on-site parking spots are under cover.
Parking areas are in a garage or underground
Parking area roof must have an SRI < 29 or
covered by solar panels or vegetation
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Credit 7.2: Heat Island Effect: Roof (1pt)
Reduce the effect of heat islands in developed areas to minimize impacton microclimate and wildlife habitat.
Option 1: 75% Roofing Materials with SRI 29 - 78 (depending on slope)
Option 2: Use vegetated roof for at least 50%
Option 3: Combination of the Options 1 & 2
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Credit 8.1: Light Pollution Reduction (1pt)
Minimize light pollution from interior and exterior building lighting systems.
EXTERIOR LIGHTING
Power densities can¶t exceed ASHRAE 90.1-2004 requirements for the
project zone per IESNA RP-33.
Meet light trespass limits at site boundary for the project zone.
Conduct light trespass analysis for all site lighting.
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Credit 8.1: Light Pollution Reduction (1pt)
Minimize light pollution from interior and exterior building lighting systems.
INTERIOR LIGHTING
OPTION 1: Angle of maximum candela.
OPTION 2: Non-business hours
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