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LEED v2009
Existing Building Operations
Water Efficiency
Additional Indoor Plumbing Fixture and Fitting Efficiency

LEED CREDIT

EBOM-2009 WEc2: Additional Indoor Plumbing Fixture and Fitting Efficiency 1-5 points

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Credit achievement rate

XX%

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Dan Ackerstein

Ackerstein Sustainability, LLC
Principal

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Credit language

USGBC logo

© Copyright U.S. Green Building Council, Inc. All rights reserved.

Intent

To maximize indoor plumbing fixture and fitting efficiency within buildings to reduce the use of potable water and consequent burden on municipal water supply and wastewater systems.

Requirements

During the performance period, have in place strategies and systems that in aggregate produce a reduction in indoor plumbing fixture and fitting potable water use from the calculated baseline established in WE Prerequisite 1: Minimum Indoor Plumbing Fixture and Fitting Efficiency.

The minimum water reduction percentage for each point threshold is as follows:

Percentage Reduction Points
10% 1
15% 2
20% 3
25% 4
30% 5

Alternative Compliance Paths (ACPs)

EBOM-Supplement with Europe ACP cover.jpg" alt="" />

LEED EBOM 2009 reference guide supplement with Europe ACPs

Credit substitution available

You may use the LEED v4 version of this credit on v2009 projects. For more information check out this article.

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Frequently asked questions

If manufacturer documentation is unavailable and the flow/fixture rate is unknown, how would one go about confirming the flow/flush rates of those fixtures?

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We are not able to locate the flow/flush rates of the plumbing fixtures in the project building, so we have decided to test 20% of the fixtures of each fixture type. How do we go about doing that?

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.)

If pre-1993 plumbing fixtures are still in place (i.e. the water closets), but their flush valves have been replaced post-1993, does that count as 'plumbing renovation' or fixture replacement for the purposes of the prerequisite/credit?

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.)

See all forum discussions about this credit »

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Credit achievement rate

XX%

Upgrade to LEEDuser Premium to see how many projects achieved this credit. Try it free »

LEEDuser expert

Dan Ackerstein

Ackerstein Sustainability, LLC
Principal

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USGBC logo

© Copyright U.S. Green Building Council, Inc. All rights reserved.

Intent

To maximize indoor plumbing fixture and fitting efficiency within buildings to reduce the use of potable water and consequent burden on municipal water supply and wastewater systems.

Requirements

During the performance period, have in place strategies and systems that in aggregate produce a reduction in indoor plumbing fixture and fitting potable water use from the calculated baseline established in WE Prerequisite 1: Minimum Indoor Plumbing Fixture and Fitting Efficiency.

The minimum water reduction percentage for each point threshold is as follows:

Percentage Reduction Points
10% 1
15% 2
20% 3
25% 4
30% 5

Alternative Compliance Paths (ACPs)

EBOM-Supplement with Europe ACP cover.jpg" alt="" />

LEED EBOM 2009 reference guide supplement with Europe ACPs

Credit substitution available

You may use the LEED v4 version of this credit on v2009 projects. For more information check out this article.

XX%

Upgrade to LEEDuser Premium to see how many projects achieved this credit. Try it free »

Got the gist of WEc2 but not sure how to actually achieve it? LEEDuser gives step-by-step help. Premium members get:

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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:

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  • 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.

If manufacturer documentation is unavailable and the flow/fixture rate is unknown, how would one go about confirming the flow/flush rates of those fixtures?

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.)

We are not able to locate the flow/flush rates of the plumbing fixtures in the project building, so we have decided to test 20% of the fixtures of each fixture type. How do we go about doing that?

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.)

If pre-1993 plumbing fixtures are still in place (i.e. the water closets), but their flush valves have been replaced post-1993, does that count as 'plumbing renovation' or fixture replacement for the purposes of the prerequisite/credit?

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

Dan Ackerstein

Ackerstein Sustainability, LLC
Principal

See all LEEDuser forum discussions about this credit » Subscribe to new discussions about EBOM-2009 WEc2