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

If the project building’s water consumption is being tracked in Energy Star Portfolio Manager, you can export the data to use for the monthly and annual summaries. If not, you can log monthly and annual summaries in a spreadsheet.

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.

There are two kinds of documentation related to meter readings that need to be provided in order to comply with the requirements of WEc1: one is to provide a record that water meter readings were read at least on a weekly basis and the other is to compile those weekly readings into monthly and annual summaries. This documentation must cover the entire performance period for this credit.

The LEED Reference Guide says we need to account for seasonal variations in commuting behavior, but doesn’t offer any guidance on how to do this. What should I do?

The geographic location of your project will determine how this will be addressed, and that is why the Reference Guide leaves room for project-specific approaches. Consider how the weather influences commuter choices in your area, and how you can modify your survey timing or strategy accordingly. For example, if you have plenty of parking capacity, occupants may switch their commuting mode per weather conditions or season. A few ideas to consider are as follows:

My project is an educational building on a university campus. Do we need to survey students?

There is some debate about this. The LEED-EBOM Reference Guide Glossary states on page 508: "Transient users are occupants who do not use a facility on a consistent, regular, daily basis. Examples include students in higher education settings, customers in retail settings, and visitors in institutional settings."