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I am working on certification for an office building located within a larger campus boundary. We are able to achieve the 98th percentile through option 2. However,the retention...

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I am currently working on the certification of 2 separated buildings with different usages (separated HVAC and plumbing systems), both are following the v4 BD+C NC. The issue is...

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I am working on an urban redevelopment project that was not designated as a zero lot line. We are proposing a...

Which would be better for this credit , a normal porous asphalt paving or a vegetated interlock ?

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Can there be absolutely no uncontrolled flow to achieve this credit? For example, if the required retention volume for the 95th percentile storm is 100 CF, can I oversize ...

Hashir Usman LEEDuser Basic Member May 5, 2020- 8:18 am Hi Andrea, LEED Guide says ''All runoff from the chosen percentile of precipitation events must be managed such that there is no surface discharge from the site. Techniques include, but are not limited to, infiltration, storage and re-use, bioretention, open-grid pavement, and the reduction of impervious area.'' So, I guess it is to use all those techniques that best mimic the natural hydrological conditions before any development occurred. And I read it in this forum that only storing and reusing the runoff volume does not comply...

What is metric for rain water management

We are working on an urban project which combines green roofs that partially infiltrate water and then evaportanspirate it, with a rainwater collection tank which captures the runoff from these...

Can outdoor open-air swimming pools be counted toward rainwater collection areas?  If the pool is constructed and maintained such that the water level always allows enough space for the local...

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I'm struggling to calculate the percentile of rainfall events. I gathered over 10 years of daily precipitation data and entered all values day by day into the calculator. My...