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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

Weekly Reading Requirement for Option 1 AND Option 2?

Hi All, It looks like our team missed something and I want to be sure. We had always planned to pursue Option 1 (Whole Building metering), however, it seems like the weekly meter reading requirement comes into play for the whole building when Option 2 (submeter) is persued. Is this true? We just added irrigation meters and the weekly irrigation was read but not the whole building. Have we lost the whole credit (both Option 1 and 2), or can we still save Option 1, by dropping out of the submeter point (Option 2)? We are submitting soon, so starting whole building might not work at this point. To make it short: Are weekly readings always expected for Option 1 (whole building)? The Reference Guide really speaks to the weekly when the Option 2 guidance is explained, however, not as explicit in Option 1 guidance. Thanks, Michelle

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Sat, 03/23/2013 - 17:41

Hi Michelle Weekly readings are required for both options, regardless of if one or both are pursued. The readings need to be taken weekly over the performance period in order to qualify. Thanks

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