Is there an updated Rainfall Events Calculator for v4.1?? We have a zero lot line project and need to figure out if our detention system will detain a 70th or 75th percentile storm for the Rainwater Management Credit. The v4 version only gives depths for 80th -100th percentile storms.
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emily reese moody
Sustainability Director, Certifications & ComplianceJacobs
LEEDuser Expert
452 thumbs up
August 29, 2019 - 12:51 pm
Looks like this calculator adds to the list of updated resources USGBC has yet to provide to accompany their v4.1 updates. You might try emailing LEED Coach or GBCI directly and asking if they plan on releasing one, or how the current tool might be modified (or something could be calculated externally) in order to show the results needed.
Michael DeVuono
Regional Stormwater LeaderArcadis North America
LEEDuser Expert
186 thumbs up
August 29, 2019 - 1:29 pm
You can just add all the data points into excel and sort from highest to lowest, this will pinpoint whatever percentile depth you’re looking for.
Maria Porter
Sustainability specialistSkanska Sweden
268 thumbs up
December 4, 2019 - 6:49 am
I took their formula in excel and changed the number for the percentile (this is in Swedish but just to get an idea of what I mean):
=OMFEL(PERCENTIL($R$43:$R$64;0,7);0) The second last number is the percentile. So change from 0.85 to 0.7 for example.
/Maria
Maria Porter
Sustainability specialistSkanska Sweden
268 thumbs up
December 16, 2019 - 6:55 am
Oh, and I see now that there is a new calculator, from August!