See LEEDuser’s guidance on NC-2009 SSc6.1 »
Post a question or comment
Credit Filters
Stormwater Design—Quantity Control
Filter by location
Forum
Topic
Replies
Recent

existing site soils are impervious

NC-2009 SSc6.1:Stormwater Design—Quantity Control
posted by  emily reese moody  on 

Hello, I am fielding a question for our civil engineer.

1
Wed Jul 29, 2015, 8:18 pm
Default Avatar

How to show 100% Infiltration

NC-2009 SSc6.1:Stormwater Design—Quantity Control
posted by  Kenneth Bailey  on 

Our project is the only development on a small, flat, island. The surface is sand or sandy topsoil and is extremely porous.

1
Wed Mar 2, 2011, 11:19 pm

A building on a campus

NC-2009 SSc6.1:Stormwater Design—Quantity Control
posted by  Lisa Sawin  on 

We currently working on a project that will be pursuing LEED certification. The building resides on a campus but we are only certifying one building as part of our contract.

1
Fri Feb 22, 2013, 4:24 pm

Discharge rates and run off

NC-2009 SSc6.1:Stormwater Design—Quantity Control
posted by  Sean Hogan  on 

Hi, In simple terms, is there a difference between 'discharge rate' and 'run off'? We are currently assessing our site to determine which case and path to follow.

1
Mon Jul 29, 2013, 4:19 pm

Option 2: Stream Protection Plan

NC-2009 SSc6.1:Stormwater Design—Quantity Control
posted by  Robert Thuston  on 

I apologize if the requested information is included on this site but I have not seen it to this point. Can anyone give me a definition of what constitutes a stream channel?

1
Mon Nov 21, 2011, 2:31 am
Default Avatar

Waiver for Quantity Requirement

NC-2009 SSc6.1:Stormwater Design—Quantity Control
posted by  Tim Setala  on 

We have a project where infiltration is not possible as the soils are D type.

1
Thu May 2, 2013, 5:26 pm
Default Avatar

pre-development / post-development

NC-2009 SSc6.1:Stormwater Design—Quantity Control
posted by  Doreen Kruschina  on 

Sorry, might be a stupid question: in our case the pre-development is a demolished building complex. Do we calculate the post-development against the previous development or the undeveloped condit

1
Wed Nov 6, 2013, 5:01 pm
Default Avatar

n/a

NC-2009 SSc6.1:Stormwater Design—Quantity Control
posted by  Marco Valerio Ceccotti  on 

Hi All. This is just a suggestion. To achieving this credit the pre-development condition is no more the "existing site" we were talking about in v2009, but is now(LEED v4) the "natural land cove

0

Working through the rational

posted by  Jean Marais  on 
0
Default Avatar

runoff coefficient

NC-2009 SSc6.1:Stormwater Design—Quantity Control
posted by  Eric Yao  on 

what the value of runoff coefficient for gravel area (2% gradient)?

1
Wed Feb 16, 2011, 8:22 pm