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FAQs about WEc1 :

If a building’s meter or submeter was installed less than a year ago, how can we provide monthly and annual summaries?

The water utility for the project building supplies electronic readings of whole building water consumption at least weekly that the project team can access. Will the electronic readings suffice for the required documentation for WEc1?

We own our water meters and the manufacturer of the submeter does not provide documentation recommending a calibration interval. How can we document that we’ve met the calibration requirements?

For meters not owned by a third-party, when should the meter calibration take place in order to comply with WEc1?

We can't get weekly readings from the main building water meter. However we can take daily readings from a water subsystem (e.g. irrigation or cooling tower makeup). Can we pursue Option 2 (water subsystem metering) without pursing Option 1 (whole buildin

What kind of meter reading documentation is required to meet the items requested on the credit form? The LEED Online credit form requests both weekly readings, and then also monthly and annual summaries.

What is the best way to track the monthly and annual water consumption summaries for the whole-building and subsystem water meters?

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Forum discussion

EBOM-2009 WEc1:Water Performance Measurement

Car wash in parking garage

Hi all, We have a case where there is an office ("main" building) and a separate parking garage (that serves the office) within LEED project boundary. In that parking garage, there is a private car wash facility that is separately submetered for water & electricity. So can we count that car wash for WEc1 as process water submetering although it's located not in the "main building"? Thanks!

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Profile picture for user bstanley
Ben Stanley
Senior Sustainability Manager
WSP - Built Ecology
LEEDuser Expert
188 thumbs up

Tue, 08/29/2017 - 18:13

If the car wash is otherwise included in the certification scope then I wouldn't see any issue with your approach.

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