US Green Building Council Exam LEED-AP-O+M Topic 2 Question 19 Discussion

Actual exam question for US Green Building Council's LEED-AP-O+M exam

Question #: 19
Topic #: 2

Which of the following strategies satisfy the Sustainable Sites Credit, Rainwater Management?\

APerform the Small Storm Hydrology method to calculate the runoff volume on 95% of the site

BMinimize impervious cover to be maximum 80% of the site area for the 95th percentile of storm events with design alterations or verification

CHarvest and treat enough rainwater to cover 25% of the impervious surfaces, for the 95th percentile storm event, that otherwise would be lost in the sewage system or runoff the site

DInclude rain gardens on the project site for 15% of the of the impervious surfaces, in order to absorb the 95th percentile storm event, that otherwise would be lost in the sewage system or runoff the site

Show Suggested Answer

Suggested Answer: B

This strategy meets the requirement of the Sustainable Sites Credit, Rainwater Management, which aims to reduce runoff volume and improve water quality by replicating the natural hydrology and water balance of the site, based on historical conditions and undeveloped ecosystems in the region. The credit requires projects to retain the runoff from the developed site for at least the 80th percentile of rainfall events, using low-impact development and green infrastructure practices. Minimizing impervious cover reduces the amount of runoff generated and allows more infiltration and evapotranspiration of rainwater.

by Lashon at Aug 16, 2025, 06:27 AM

Limited Time Offer

25%

Off

Get Premium LEED-AP-O+M Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Currently there are no comments in this discussion, be the first to comment!