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Redirecting rainwater to bodies of water outside the project site?

NC-v4 SSc4: Rainwater management
posted by LEED Pro Consultant on Jan 23, 2023, 4:57 pm

Hi everyone,

Does redirecting rainwater to bodies of water outside the project site count as low-impact development (...

Last reply: Gustavo De las Heras Izquierdo, Jan 23, 2023, 5:21 pm

Calculation Rainwater Amount V4 vs V2009

NC-v4 SSc4: Rainwater management
posted by Anna Korinkova on Oct 10, 2022, 2:26 am

Hello everyone,

I have managed to read trough the comments in the forum and from what i have read i understood that the calculation that indicates the amount of water to be managed on site...

Last reply: Anna Korinkova, Oct 18, 2022, 1:18 pm

Problem with Rainfall Event Calculator

NC-v4 SSc4: Rainwater management
posted by Timothy Ian Middleton on Oct 5, 2022, 4:29 am

We have just realised that the percentile value given by the LEED Rainfall Event Calculator (https://www.usgbc.org/...

Last reply: Gustavo De las Heras Izquierdo, Oct 5, 2022, 1:03 pm

FAR Calculation

NC-v4 SSc4: Rainwater management
posted by Kene Akunne on Sep 6, 2022, 2:26 pm

Please can someone explain how to calculate residential...

Zero lot line projects

NC-v4 SSc4: Rainwater management
posted by Gustavo De las Heras Izquierdo on Mar 26, 2015, 12:47 pm

Path 3 states: "manage on site the runoff from the developed site for the 85th percentile ". I guess this requirement was made to exclude the sidewalk from calculations. Am I reading this...

Last reply: David Hubka, May 16, 2022, 2:10 pm

Cistern in only one building in campus master site- points only for that building?

NC-v4 SSc4: Rainwater management
posted by Douglas Webber on Mar 25, 2022, 10:53 am

I'm working on a complex mixed-use Campus project, where we'd like to pursue this credit for 1 of the separate buildings.

Only one of the buildings on the master site will have a cistern...

Historical Rainfall Data- Input for Calculator

NC-v4 SSc4: Rainwater management
posted by Hieu Huynh on May 30, 2019, 8:27 am

Hi LEED experts, It is difficult to find rainfall data of 10 years in my country. I'm just lucky to find an international source for that long data. But they just recorded the average rainfall...

Last reply: PARITALA sudhakar, Mar 13, 2022, 12:18 pm

Rainwater Management- Exemplary Performance

NC-v4 SSc4: Rainwater management
posted by LUCY WILLIAMS on Oct 9, 2017, 3:09 pm

Per page 194 of the v4 BD+C Reference Guide, the Exemplary Performance section indicates "Manage 100% of rainwater that falls within the project boundary".  This is a fairly vague statement.  Is...

Last reply: Lyle Axelarris, Jan 10, 2022, 2:35 pm

Green roof

NC-v4 SSc4: Rainwater management
posted by Dina El-Sady on Jan 4, 2022, 7:30 am

Is my understanding correct that the building roof must be green to satisfy this credit ? The project is an office building with most of the parking underground and a small surrounding paveway...

Last reply: Gustavo De las Heras Izquierdo, Jan 6, 2022, 5:17 am

Project boundary for rainwater management

NC-v4 SSc4: Rainwater management
posted by Nithya Madan on May 1, 2018, 8:37 pm

Hello,  

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...

Last reply: Cindy Quinn, Jan 3, 2022, 7:34 pm