Credit achievement rate
XX%
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LEEDuser expert
Michael DeVuono
PE, CPESC, LEED AP BD+C
Arcadis North America
Regional Stormwater Leader
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Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Requirements
Implement a stormwater management plan that reduces impervious cover, promotes infiltration and captures and treats the stormwater runoff from 90% of the average annual rainfall1 using acceptable best management practices (BMPs). BMPs used to treat runoff must be capable of removing 80% of the average annual postdevelopment total suspended solids (TSS) load based on existing monitoring reports. BMPs are considered to meet these criteria if:
- They are designed in accordance with standards and specifications from a state or local program that has adopted these performance standards.
- There exists infield performance monitoring data demonstrating compliance with the criteria. Data must conform to accepted protocol (e.g., Technology Acceptance Reciprocity Partnership [TARP], Washington State Department of Ecology) for BMP monitoring.
SITES-LEED Equivalency
This LEED credit (or a component of this credit) has been established as equivalent to a SITES v2 credit or component. For more information on using the equivalency as a substitution in your LEED or SITES project, see this article and guidance document.What does it cost?
Cost estimates for this credit
On each BD+C v4 credit, LEEDuser offers the wisdom of a team of architects, engineers, cost estimators, and LEED experts with hundreds of LEED projects between then. They analyzed the sustainable design strategies associated with each LEED credit, but also to assign actual costs to those strategies.
Our tab contains overall cost guidance, notes on what “soft costs” to expect, and a strategy-by-strategy breakdown of what to consider and what it might cost, in percentage premiums, actual costs, or both.
This information is also available in a full PDF download in The Cost of LEED v4 report.
Learn more about The Cost of LEED v4 »Frequently asked questions
I have 100-year data—how do I convert to 2-year?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Is it an acceptable strategy to capture the rainwater into tanks and discharge it into the public sewers after the rainstorm reducing the peak discharge?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Are there special considerations for international projects?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
What performance threshold do I need to achieve for an Exemplary Performance point?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
The calculations for this credit are always a headache! While our projects are usually awarded the credit, the equations in the LEED Reference Guide are helpful mostly for sizing a reservoir or cistern, but don't help you get to the final results. Does USGBC provide any step-by-step guidance that would make submitting these credits more predictable?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Why do the requirements focus on 1-year and 2-year, 24-hour storms?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Why include the 1-year storm in the credit requirements? Won't management practices for the 2-year storm be effective?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
How can green roofs count as a stormwater control measure?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
How can I achieve compliance if my project's stormwater control measures are outside the LEED project boundary?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
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© Copyright U.S. Green Building Council, Inc. All rights reserved.
Requirements
Implement a stormwater management plan that reduces impervious cover, promotes infiltration and captures and treats the stormwater runoff from 90% of the average annual rainfall1 using acceptable best management practices (BMPs). BMPs used to treat runoff must be capable of removing 80% of the average annual postdevelopment total suspended solids (TSS) load based on existing monitoring reports. BMPs are considered to meet these criteria if:
- They are designed in accordance with standards and specifications from a state or local program that has adopted these performance standards.
- There exists infield performance monitoring data demonstrating compliance with the criteria. Data must conform to accepted protocol (e.g., Technology Acceptance Reciprocity Partnership [TARP], Washington State Department of Ecology) for BMP monitoring.
SITES-LEED Equivalency
This LEED credit (or a component of this credit) has been established as equivalent to a SITES v2 credit or component. For more information on using the equivalency as a substitution in your LEED or SITES project, see this article and guidance document.XX%
Upgrade to LEEDuser Premium to see how many projects achieved this credit. Try it free »
Got the gist of SSc6.2 but not sure how to actually achieve it? LEEDuser gives step-by-step help. Premium members get:
- Checklists covering all the key action steps you'll need to earn the credit.
- Hot tips to give you shortcuts and avoid pitfalls.
- Cost tips to assess what a credit will actually cost, and how to make it affordable.
- Ideas for going beyond LEED with best practices.
- All checklists organized by project phase.
- On-the-fly suggestions of useful items from the Documentation Toolkit and Credit Language.
In the end, LEED is all about documentation. LEEDuser’s Documentation Toolkit, for premium members only, saves you time and helps you avoid mistakes with:
- Calculators to help assess credit compliance.
- Tracking spreadsheets for materials purchases.
- Spreadsheets and forms to give to subs and other team members.
- Guidance documents on arcane LEED issues.
- Sample templates to help guide your narratives and LEED Online submissions.
- Examples of actual submissions from certified LEED projects.
I have 100-year data—how do I convert to 2-year?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Is it an acceptable strategy to capture the rainwater into tanks and discharge it into the public sewers after the rainstorm reducing the peak discharge?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Are there special considerations for international projects?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
What performance threshold do I need to achieve for an Exemplary Performance point?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
The calculations for this credit are always a headache! While our projects are usually awarded the credit, the equations in the LEED Reference Guide are helpful mostly for sizing a reservoir or cistern, but don't help you get to the final results. Does USGBC provide any step-by-step guidance that would make submitting these credits more predictable?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Why do the requirements focus on 1-year and 2-year, 24-hour storms?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Why include the 1-year storm in the credit requirements? Won't management practices for the 2-year storm be effective?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
How can green roofs count as a stormwater control measure?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
How can I achieve compliance if my project's stormwater control measures are outside the LEED project boundary?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
LEEDuser expert
Michael DeVuono
PE, CPESC, LEED AP BD+C
Arcadis North America
Regional Stormwater Leader
