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pre-development / post-development

NC-2009 SSc6.1: Stormwater design - quantity control
posted by Doreen Kruschina on Nov 6, 2013, 10:40 am

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...

Last reply: Michael DeVuono, Nov 6, 2013, 12:01 pm

1-year-24-hour data in the UK

NC-2009 SSc6.1: Stormwater design - quantity control
posted by Alicia Freire on Jul 16, 2013, 6:44 am

Hello
I am working on a project in the UK and we are struggling to get the 1 year 24 hours rainfall. I have been told by the Environmental Agency in the UK that the software used by the...

Last reply: Tristan Roberts, Nov 3, 2013, 12:03 am

Stormwater Harvesting and Runoff Queries

NC-2009 SSc6.1: Stormwater design - quantity control
posted by Greg Kight on Jun 7, 2013, 1:16 pm

We have a tall office building that has a cistern for...

Last reply: Michael DeVuono, Oct 28, 2013, 1:19 pm

Case 1 Option 2 Excessive stormwater runoff

NC-2009 SSc6.1: Stormwater design - quantity control
posted by John Covello on Oct 11, 2013, 10:25 pm

Hello,

We are pursing Option 2 for this project. Our stream channel protection will handle a 10 year storm event. How does the credit handle excessive storms, 50 or 100 year events? Or are...

Last reply: Michael DeVuono, Oct 14, 2013, 8:59 am

Gravel Roads as BMPs

NC-2009 SSc6.1: Stormwater design - quantity control
posted by PAULA HERNANDEZ on Oct 13, 2013, 9:53 am

Hi Everyone,

A project I'm working on is factory on a rural setting. All roads and parking lots are gravel. Does this account as pervious paving? I'm certain it should, and it should...

Last reply: Michael DeVuono, Oct 14, 2013, 8:51 am

Runoff volumes

NC-2009 SSc6.1: Stormwater design - quantity control
posted by Gregory Hurst on Sep 15, 2009, 7:40 pm

The way that we have calculated run-off volume is to calculate a weighted average run-off coefficient, as you would for the...

Last reply: John Covello, Oct 11, 2013, 4:25 am

Green roof deck

NC-2009 SSc6.1: Stormwater design - quantity control
posted by mariela garate on Aug 27, 2013, 3:48 pm

Hi, We are willing to use an innovative type of green roof that's based on compacted plastic waste board and textile (1,3cms thickness + textile). This substrate replaces the need of soil....

Last reply: Michael DeVuono, Sep 5, 2013, 10:25 am

Discharge rates and run off

NC-2009 SSc6.1: Stormwater design - quantity control
posted by Sean Hogan on Jul 29, 2013, 11:26 am

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. Discharge rate is the...

Last reply: Michael DeVuono, Jul 29, 2013, 12:19 pm

Unavailable rainfall data

NC-2009 SSc6.1: Stormwater design - quantity control
posted by Magda Aghababyan on Jul 19, 2013, 4:25 am

Hello, We have a project in Sri Lanka where we try to attempt this credit via percentile rainfall event option. However we find difficulty of getting continuous 30 year rainfall data. There are...

Last reply: Michael DeVuono, Jul 22, 2013, 8:35 am

Low Impact Development and green infrastructure strategies

NC-2009 SSc6.1: Stormwater design - quantity control
posted by Alicia Freire on Jul 16, 2013, 6:52 am

Hello
When following the ACP, the LEED manual states that attenuation must be undertaken through Low Impact Development (...

Last reply: Michael DeVuono, Jul 16, 2013, 12:12 pm