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swimming pool

NC-2009 SSc6.1: Stormwater design - quantity control
posted by Melissa Merryweather on Dec 26, 2016, 8:36 pm

Hi --can a swimming pool be considered a retention pond? And are swimming pools considered to be 100% pervious? Or is it a matter of whether the water is treated before re-use or release? Thanks...

Last reply: Melissa Merryweather, Dec 29, 2016, 10:49 pm

Terms and concepts used in the form

NC-2009 SSc6.1: Stormwater design - quantity control
posted by Gabriela Mesquita on Aug 19, 2016, 10:44 am

Good morning,
We are working in a Project in Asunción, Paraguay. In the form of the credit, you have two tables, i have three questions:
1- The value of rate (cm) in the table is the...

Last reply: Gabriela Mesquita, Aug 31, 2016, 12:11 pm

Rainwater for enclosed car park reutilization

NC-2009 SSc6.1: Stormwater design - quantity control
posted by Ricardo Sá on Aug 17, 2016, 11:49 am

I'm working in a project where rainwater is collected and stored in storage cisterns. These cisterns fed the irrigation system, flush discharges and enclosed car park cleaning.

Has anyone...

Last reply: Michael DeVuono, Aug 31, 2016, 10:36 am

SSc6.1 Design Storm Interval

NC-2009 SSc6.1: Stormwater design - quantity control
posted by Curtis Dorosh on Aug 4, 2016, 1:56 pm

Hi,

I have noticed this question 2 times in the comments, but, I don't see an answer. On page 97 LEED 2009 guide they use 3 days or 72 hours as the design storm interval (between...

Last reply: Curtis Dorosh, Aug 18, 2016, 11:32 am

Time to utilize water volume- International project

NC-2009 SSc6.1: Stormwater design - quantity control
posted by Maria Isabel Conde on Mar 14, 2016, 12:00 pm

Hello,

In our project outside the US and in the rainy tropics our site pre-development is >50% impervious (only 10% site is natural green) therefore we need to go for 25% reduction in...

Last reply: Michael DeVuono, Mar 23, 2016, 2:09 pm

n/a

NC-2009 SSc6.1: Stormwater design - quantity control
posted by Marco Valerio Ceccotti on Mar 21, 2016, 1:16 pm

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 "...

Reducing Volume of stormwater runoff through 2 improvements

NC-2009 SSc6.1: Stormwater design - quantity control
posted by VICTOR MORENO on Mar 16, 2016, 11:03 am

Hello,
Our project is based on the case 2. Existing Site With imperviousness is greater than 50%.

We implemented several strategies for improvement:
a) Reduced runoff place...

Last reply: Michael DeVuono, Mar 16, 2016, 11:30 am

Captured and Conveyed to on-site retention areas

NC-2009 SSc6.1: Stormwater design - quantity control
posted by Bridget Brock on Feb 18, 2016, 12:28 pm

We are having a hard time determining how to calculate the flow quantities for our site when it has been designed so all of the run off is captured and conveyed to on-site retention ponds. Is...

Last reply: Michael DeVuono, Feb 18, 2016, 3:26 pm

Underground Storage Chambers

NC-2009 SSc6.1: Stormwater design - quantity control
posted by Marco Valerio Ceccotti on Feb 8, 2016, 7:40 am

To reduce runoff peak and quantity our project team used an embedded underground chambers system. In this practice, the only chambers waterflow outlet is water exfiltration on surrounding soil....

Last reply: Michael DeVuono, Feb 8, 2016, 9:59 am

Peak discharge/flow rate

NC-2009 SSc6.1: Stormwater design - quantity control
posted by hana manai on Dec 22, 2015, 4:56 pm

Which formula do you use to calculate peak flow rate (1 and 2-year, 24hours). I am using NRCS (SCS) TR-55 Graphical Discharge Method. Is that recommanded?

Last reply: Michael DeVuono, Dec 28, 2015, 5:50 pm