LEED v4
Core and Shell
Water Efficiency
Indoor water use reduction

CS-v4 WEc2: Indoor water use reduction 1-6 points

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Credit language

USGBC logo

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

Intent

To reduce indoor potable water consumption and preserve no and low-cost potable water resources.

Requirements

Further reduce fixture and fitting water use from the calculated baseline in WE Prerequisite Indoor Water Use Reduction. Additional potable water savings can be earned above the prerequisite level using alternative water sources. Include fixtures and fittings necessary to meet the needs of the occupants. Some of these fittings and fixtures may be outside the tenant space (for Commercial Interiors) or project boundary (for New Construction). Points are awarded according to Table 1.
Table 1. Points for reducing water use
Percentage reduction Points (BD&C) Points (Schools, Retail, Hospitality, Healthcare) Points (ID&C) Points (CI Retail) Points (CI Hospitality)
25% 1 1 2 2 2
30% 2 2 4 4 4
35% 3 3 6 6 6
40% 4 4 8 8 8
45% 5 5 10 10 10
50% 6 -- 12 -- 11
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Frequently asked questions

Our plumbing fixtures are served, in part, by nonpotable water. How do we account for this?

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Cost estimates for this credit

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Addenda

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Guest expert

emily reese moody

LEED AP BD+C, LFA, EcoDistricts AP, ENV SP, Fitwel Ambassador, WEDG Professional, ActiveScore AP, GGP, GPCP, GCP

Jacobs
Sustainability Director, Certifications & Compliance

LEEDuser overview

Frank advice from LEED experts

LEED is changing all the time, and every project is unique. Even seasoned professionals can miss a critical detail and lose a credit or even a prerequisite at the last minute. Our expert advice guides our LEEDuser Premium members and saves you valuable time.

For full access, sign up now for LEEDuser Premium

Already a premium member? Log in now

Credit language

USGBC logo

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

Intent

To reduce indoor potable water consumption and preserve no and low-cost potable water resources.

Requirements

Further reduce fixture and fitting water use from the calculated baseline in WE Prerequisite Indoor Water Use Reduction. Additional potable water savings can be earned above the prerequisite level using alternative water sources. Include fixtures and fittings necessary to meet the needs of the occupants. Some of these fittings and fixtures may be outside the tenant space (for Commercial Interiors) or project boundary (for New Construction). Points are awarded according to Table 1.
Table 1. Points for reducing water use
Percentage reduction Points (BD&C) Points (Schools, Retail, Hospitality, Healthcare) Points (ID&C) Points (CI Retail) Points (CI Hospitality)
25% 1 1 2 2 2
30% 2 2 4 4 4
35% 3 3 6 6 6
40% 4 4 8 8 8
45% 5 5 10 10 10
50% 6 -- 12 -- 11
See all forum discussions about this credit »

Frequently asked questions

Our plumbing fixtures are served, in part, by nonpotable water. How do we account for this?

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 »

Documentation toolkit

The motherlode of cheat sheets

LEEDuser’s Documentation Toolkit is loaded with calculators to help assess credit compliance, tracking spreadsheets for materials, sample templates to help guide your narratives and LEED Online submissions, and examples of actual submissions from certified LEED projects for you to check your work against. To get your plaque, start with the right toolkit.

For full access, sign up now for LEEDuser Premium

Already a premium member? Log in now


Frequently asked questions

Our plumbing fixtures are served, in part, by nonpotable water. How do we account for this?

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 »
Guest expert

emily reese moody

LEED AP BD+C, LFA, EcoDistricts AP, ENV SP, Fitwel Ambassador, WEDG Professional, ActiveScore AP, GGP, GPCP, GCP

Jacobs
Sustainability Director, Certifications & Compliance