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Water Use Reduction Calculation in LEED

GBCI: 0920000591

This course addresses calculation issues and how to successfully submit the LEED v2009 Water Reduction prerequisite and credit.
Eligible for 1 CE HOUR.
  • 1 CE

  • LEED AP BD+C
  • LEED AP ID+C
  • LEED Green Associate

LEED version: v2009

Published on: July 21, 2014

Average: 3.8 (5 votes)
3.8

About

With the introduction of the Water Use Reduction Prerequisite in LEED 2009 rating systems, every project team is required to complete these calculations to demonstrate a minimum percentage of water use reduction. Many teams think they have this credit figured out, but many errors are made when project teams complete these calculations. This consequently results in the prerequisite and/or credit being pended or denied during the certification review process.

This addresses issues such as proper calculation methodology, accounting for urinals in buildings, proper weighted calculations for dual-flush toilets, public vs. private fixtures, fixture usage groups and the use of proper gender ratios, and how to successfully submit the LEED v2009 Prerequisite/Credit Forms in LEED Online.

This course is for anyone working on a LEED project and will address issues such as proper calculation methodology, accounting for urinals in buildings, baseline flow rates required for fixtures, proper weighted calculations for dual-flush toilets, public vs. private fixtures, fixture usage groups and the use of proper gender ratios, and how to successfully submit the LEED Prerequisite/Credit Forms in LEED Online. Learn what reviewers are looking for and how to submit it right the first time.

Course takers should familiarize themselves with the credit language in LEED 2009 WEp1 and WEc3 LEED for New Construction and Major Renovations before taking this course.

As part of this course, after viewing the presentation, download and review the two documents, EPA’s Saving Water in Office Buildings and Common Myths about Water Reduction available in the Additional Resources section on the right.

Objectives

  1. Understand the common mistakes made by project teams submitting WEp1 during the LEED certification process
  2. Successfully calculate the water use reduction of a LEED project
  3. Assess which fixture usage groups to use on a LEED project
  4. Assess whether there are any weighted calculations that need to be completed in order to properly reflect the project conditions
  5. Determine what documentation to include to meet Prerequisite requirements.
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Intermediate

Created by

AEC Daily Corporation
Buffalo, NY
United States

Leaders

Erika Mayer

Sustainability Consultant Lunchbox Consulting Inc.
USGBC Education Partners are leaders and trusted voices and reputable providers of green building and sustainability education. Learn more
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9 commentsLeave a comment

Director LEED Program , University of Florida
Pro Reviewer
3

This is a good course for any project team member who is responsible for the water credit calculations. The detailed calculations for two case studies is very useful. To take this course, you need to have some experience in water credit calculations. This course will help minimize or even maybe eliminate water pre-req and credit audit. It will be useful to add the backup submission too with plumbing cut sheet highlighted the info that the reviewer is looking for and verifying.

Principal Sustainability Consultant, RES
4

A good course, clearly laid out.

Director of Education, AEC Daily Corporation

Thanks for taking this course Rachel!

Ariane Hansen
AEC Daily

5

Very well explained, clear and detailed which is something I expected from this course since it is for an intermediate level.. You should have no problems as long as you pay attention and take notes.

Director of Education, AEC Daily Corporation

Hi Romina,
Thank you for providing comments for this course!

Ariane Hansen
AEC Daily

LEED Advisor, CBRE
Pro Reviewer
4

From a learner experience, I would argue that the theoretical aspects of the course as well as the practice cases will help a consulting team understand the main challenges they might encounter while filling out and calculating WEp1 and WEc3 on LEED for New Construction and Major Renovations or WEc1 on LEED for Commercial Interiors Rating Systems. The course will help the team to document from scratch and solve main FAQs, although previous experience in the topic is highly recommended before taking it.

Director of Education, AEC Daily Corporation

Hi William,
Thank you for your review. We will modify our "About" blurb to include a note encouraging reader to familiarize themselves with this credit language before taking the course.

Ariane Hansen
AEC Daily

LEED Fellow, LEED Faculty, Principal,, zenerG
Pro Reviewer
3

This course goes in to the details of the the do's and donts for the WE P1 and C3 calculations and provides two case studies. It is quite informative. You will get a lot more out of this if you familiarize yourself with the LEED Online Templates for WE P1 and C3 before you take the course.

Senior Civil specialist, CH2M HILL

A good learning on calculations and finer points

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