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Treatment Requirements

NC-v4 SSc4: Rainwater management
posted by Annie Levan on May 14, 2018, 6:23 pm


Can someone please clarify the treatment requirements for various storm water strategies? A few example strategies are as followed:

1. Bio...

Floor area Ratio (FAR) calculation for Zero Lot Line Projects

NC-v4 SSc4: Rainwater management
posted by Andrea Costa on Apr 30, 2018, 6:04 am

Dear all,

Please, could someone explain me in further detail how to proceed with the...

Rainwater management for large industrial site

NC-v4 SSc4: Rainwater management
posted by Erin Holdenried on Apr 6, 2018, 1:27 pm

Hello - We have a large industrial site that is using a pond to manage about 25% of the rainwater and a vegetated channel to manage about 75% of the rainwater.  I believe the vegetated channel...

Last reply: Michael DeVuono, Apr 6, 2018, 1:46 pm

Rainfall events to consider under Option 2

NC-v4 SSc4: Rainwater management
posted by Ricardo Sá on Feb 15, 2018, 12:16 pm


we're pursuing credit compliance following option 2. According to reference guide (page 184), to achieve compliance, annual increase in runoff volume has to be managed (post...

Last reply: Michael DeVuono, Feb 15, 2018, 12:43 pm

How to calculate the Tank size

NC-v4 SSc4: Rainwater management
posted by Patrick Y P Lui on Jan 31, 2018, 3:35 am

I am working a hotel project with 6090 sq.m greenery + 14210 sq.m pavement and willing to get 3 points by Percentile of rainfall events (Option 1) - Path 2 98th Percentile.

Information I...

Zero Lot Line- Rainwater Management

NC-v4 SSc4: Rainwater management
posted by Vikram Kanade on Jan 9, 2018, 12:50 am


I have a building that exactly sits on 3 sides of its LEED boundary. On its fourth side, it has only 5% of the total site area that is unoccupied by the building footprint....

Last reply: emily reese moody, Jan 11, 2018, 7:37 pm

Management of on site runoff at a neighboring retention pond

NC-v4 SSc4: Rainwater management
posted by Jason Garvens on Jan 10, 2018, 5:14 pm

I'm working on a project being built in a designated industrial park area. The whole industrial development area had previously had a water retention pond created to service all future site...

Last reply: Michael DeVuono, Jan 11, 2018, 1:49 pm

Storm water from neighboring site

NC-v4 SSc4: Rainwater management
posted by Bradley Magnusson on Jan 9, 2018, 1:52 pm

Michael DeVuono Regional Stormwater Leader Arcadis North America LEEDuser Expert 184 thumbs up January 10, 2018- 1:01 pm This isn't really a GI approach, since you are conveying the runoff away from the source. Scroll through the forums, another project with a similar approach was denied on this basis. Now just from a hydraulic standpoint, it appears that you are designing a BMP that is inadequately sized to capture the receiving drainage area, causing later stages of your storm to overflow and bypass? I'd be more concerned with the downstream flooding impacts you may be causing than...

Last reply: Michael DeVuono, Jan 10, 2018, 1:01 pm

Rainwater management

NC-v4 SSc4: Rainwater management
posted by SAMY Chamy on Jan 2, 2018, 7:33 am

Dear Concern:-

we are working in a major renovation project so it is difficult to manage the runoff however we are reduce the runoff volume compared to     pre-development  by GI & LID...

Last reply: Michael DeVuono, Jan 2, 2018, 11:16 am

What is the definition of annual increase? Volume difference in 1-year 24-hour rainfall event?

NC-v4 SSc4: Rainwater management
posted by John Zhang on Sep 5, 2017, 9:34 am

Based on my understanding by reading the posts on this web site, it seems to me that for option #1, all volume from the 95th or 98th percentile of rainfall...

Last reply: Michael DeVuono, Nov 21, 2017, 3:43 pm