Our LEED project site falls within a larger medical campus which has a campus-wide stormwater management plan which meets the credit requirements. However, the post-development volume within our LEED project boundary is not managed internally, but instead is discharged to the broader campus system of retention areas and swales etc. In v2009 this was an acceptable approach for campus applications. Does this logic carry through into v4 or are the requirements for onsite management strictly interpreted as within the LEED project boundary?
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Michael DeVuono
Regional Stormwater LeaderArcadis North America
LEEDuser Expert
187 thumbs up
September 6, 2016 - 4:27 pm
Tough to say how this will turn out, there isn't enough project data and experience at this time.
Greg Romanczyk
EXP18 thumbs up
May 5, 2017 - 11:01 am
Has there been any updated information on the above question regarding if the onsite management is mandated to be within the LEED project boundary?
Theresa Backhus
Sites Technical Specialist, LEEDUSGBC
66 thumbs up
May 11, 2017 - 10:36 am
Hi Faun,
If your project is registered as a LEED Campus project, yes. The Reference Guide says for the Group Approach: “All buildings in the group may be documented as one” and for the Campus Approach: “Eligible.”
If your project is not registered as a LEED Campus project, but is part of a multitenant complex/master plan, there is more guidance in the Reference Guide under Further Explanation, Project Type Variations. Essentially, yes, you can manage the water within the larger boundary rather than within the smaller LEED project boundary. However, if you are using this approach, you must calculate compliance according to the entire area within the campus/complex/master plan boundary. The rainwater management facilities need to be able to manage the water from the whole area, not just the LEED project boundary.