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Collection rainwater area outside the boundary- SS Rainwater Management

NC-v4.1 SSc4: Rainwater management
posted by Juliana Candido on Mar 15, 2024, 4:38 pm

We are working on a project whose LEED Boundary covers the whole exterior area of the site, but there is an existing building that will not be altered. We have the rainwater collection area on...

Determining Retention Requirements

NC-v4.1 SSc4: Rainwater management
posted by Callie Reymann on Feb 28, 2024, 12:40 pm

Our rainwater calculations are right on the cusp of reaching the 90th percentile and earning the full three points (+ regional priority point) for this credit. In fact, our calculations met the...

Grey Infrastructure Devices

NC-v4.1 SSc4: Rainwater management
posted by Jason Cocek on Oct 14, 2021, 11:25 am

The LEED v4.1 guidance says that conventional grey infrastructure devices and hard runoff conveyance systems can be used as a component of...

Last reply: Catarina Costa Goncalves, Nov 14, 2023, 4:33 am

Multi-family Stormwater alternative documentation

NC-v4.1 SSc4: Rainwater management
posted by Summer Gorder on Jun 19, 2023, 1:34 pm

Our project is in Seattle with stringent Stormwater requirements. The Civil Engineer used software that they’re required to use to size BMPs, but it does not provide the info in the calculator...

Last reply: Dave Hubka, Jun 19, 2023, 2:11 pm

Credit Substitution Point Mismatch

NC-v4.1 SSc4: Rainwater management
posted by Grace Friedhoff on Feb 3, 2023, 8:59 am

We are registered as a v4 project but would like to substitute the Rainwater Management credit for version 4.1. However the credit thresholds do not update in LEEDonline when you substitute. How...

Is Rainwater Cistern acceptable as LID Techniques?

NC-v4.1 SSc4: Rainwater management
posted by Michael on Mar 21, 2022, 12:11 pm

Hi LEED experts, I read v4.1 "Further explanation", in the first section "Examples of Acceptable...

Last reply: emily reese moody, Aug 22, 2022, 12:09 pm

Pervious Landscaping as an LID

NC-v4.1 SSc4: Rainwater management
posted by David Nanstad on Nov 23, 2020, 3:38 pm

Does pervious landscaping (grasses and trees) count toward...

Last reply: Gustavo De las Heras Izquierdo, Jul 20, 2022, 7:15 pm

Requirement to treat run-off from pollution generating hard surfaces with LID

NC-v4.1 SSc4: Rainwater management
posted by Kavita on Jan 10, 2021, 11:19 pm

Can anyone please confirm if the LEEDv4.1 version of this credit requires to treat run-off from pollution generating hard surfaces with...

Last reply: Gustavo De las Heras Izquierdo, Jul 20, 2022, 7:09 pm

Option 2 Natural land cover- rainfall percentile to use

NC-v4.1 SSc4: Rainwater management
posted by Agustin Bertolotti on Jul 1, 2022, 4:13 pm

Hi all

We are considering a rainwater tank to collect the runoff volume difference between the original site condition and the Project situation.  Does anyone knows which rainfall...

Last reply: Gustavo De las Heras Izquierdo, Jul 20, 2022, 6:49 pm

Manage rainwater partly out of the LEED project boundary

NC-v4.1 SSc4: Rainwater management
posted by Aris Koliopoulos on Feb 22, 2022, 6:09 pm

Dear All,

We are working on an office project where a new building will be erected next to an existing building. Both buildings are essentially located on the same site area however for...

Last reply: emily reese moody, May 13, 2022, 3:24 pm