Overall Rating Silver
Overall Score 45.10
Liaison Bo Solomon
Submission Date March 3, 2023

STARS v2.2

Drexel University
IN-36: Stormwater Modeling

Status Score Responsible Party
Complete 0.50 / 0.50 Bo Solomon
University Sustainability Officer
Procurement
"---" indicates that no data was submitted for this field

A brief description of the methodology/tool used to calculate the percentile local or regional rainfall events for which the institution manages runoff on-site using LID practices and green infrastructure:
We used the Green Values Stormwater Management Calculator. Total Campus acres = 74. managed = 12 acres. Trees = 1229, permeable paving, swales, green roof areas on the additional documentation from Green Values.
Green Values calculator = 54.7%
Evaporation of the remaining 47.2% is 75% or 35.4%
54.7% + 35.4% = 90.01 (90th percentile)
https://www.ncei.noaa.gov/access/us-climate-normals/#dataset=normals-monthly&timeframe=15&location=PA&station=USW00013739

Percentile of local or regional rainfall events for which the institution manages runoff on-site using LID practices and green infrastructure:
90th

Website URL where information about the stormwater modeling is available:
Additional documentation to support the submission:
Data source(s) and notes about the submission:
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