leed ga sustainable sites

8/6/2019 LEED GA Sustainable Sites

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LEED GA STUDY GROUP:

SUSTAINABLE SITES



LEED NEW CONSTRUCTION

CHECKLIST

SUSTAINABLE SITES




CHECKLIST

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.




CHECKLIST

SUSTAINABLE SITES


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




CHECKLIST

SUSTAINABLE SITES


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




CHECKLIST

SUSTAINABLE SITES


Ways to control sedimentation:

Stabilization: i.e. seeding and mulching

Structural: i.e. silt fences, earth dikes, sediment traps




CHECKLIST

SUSTAINABLE SITES

Credit 1: Site Selection (1pt)

Intent: Develop sites that are already previously developed. Avoid developinginappropriate sites.




CHECKLIST

SUSTAINABLE SITES


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)




CHECKLIST

SUSTAINABLE SITES


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.




CHECKLIST

SUSTAINABLE SITES

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.




CHECKLIST

SUSTAINABLE SITES

Credit 3: Brownfield Redevelopment (1pt)

Rehabilitate existing damaged/contaminated sites.




CHECKLIST

SUSTAINABLE SITES

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.




CHECKLIST

SUSTAINABLE SITES

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




CHECKLIST

SUSTAINABLE SITES

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




CHECKLIST

SUSTAINABLE SITES

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)




CHECKLIST

SUSTAINABLE SITES

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.




CHECKLISTSUSTAINABLE SITES

Chart from: www.leeduser.com/credit/NC-2009





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.





Chart from: www.leeduser.com/credit/NC-2009





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).





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





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





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





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





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.





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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