[USCC] runoff reduction

[Lindquist, Perry]

Is the curve number you reference (55) a temporary affect? If so, how long does it last?

Perry Lindquist
Land Resources Manager
Waukesha County WI

-----Original Message-----
From: compost-bounces at mailman.cloudnet.com [mailto:compost-bounces at mailman.cloudnet.com] On Behalf Of Britt Faucette
Sent: Wednesday, January 21, 2009 9:50 PM
To: compost at mailman.cloudnet.com
Subject: Re: [USCC] runoff reduction



There are a few published studies on compost blankets that quantify their effect on runoff volume (among other storm water characteristics). These studies report rainfall and runoff amounts. If rainfall and runoff depth are known, you can calculate the runoff curve number (CN) based on the USDA-SCS TR55 methodology. Based on the values reported in these studies, an average CN of 55 has been determined for hydrologic soil group B.  This CN is similar to a public green space, 75% brush covered area, and a woodland according to CN book values provided by the USDA SCS TR55.

I am not sure I understand your question about obtaining credit for infiltration. Are you trying to calculate infiltration or rainfall absorption of a compost blanket?Dr. Britt Faucette, Ecologist, CPESC, LEED AP Director of Research & Technical Services Filtrexx International 551 East Lake Drive Decatur, GA 30030 ph: (678) 592 7094 www.filtrexx.com > From: sandy.syburg at whiteoakfarmorganics.com> To: compost at mailman.cloudnet.com> Date: Tue, 20 Jan 2009 14:48:58 -0600> Subject: [USCC] runoff reduction> > Are there any studies out there that prove there is a reduction in curve> number if a "green space" has a compost blanket rather than just mulch or> matting? If so what would that curve number be and also what kind of credit> can you get for infiltration.> > > Sandy Syburg> > > > White Oak Farm Premium Organics> > W360 N8515 Brown Street> > Oconomowoc, WI 53066> > > > > > Voice 920-355-4042> > Fax 920-355-4043> > > > email sandy.syburg at whiteoakfarmorganics.com> > web site www.w
 hiteoakfarmorganics.com> <http://www.whiteoakfarmorganics.com/> > > > > _______________________________________> Join us as the US Composting Council's 17th Annual Conference & Trade Show, January 26-29, 2009 at the Westin Galleria, Houston, TX. The Largest Conference & Exhibition in North America for the Composting, Wood Waste, & Organics Recycling Industry. The Most Comprehensive Program of 11 Training Courses, 100+ Educational & Technical Presentations, and Facility Tours & "Live" Equipment Demonstrations from 20+ Manufacturers.> Conference Highlights & Program, Registration forms, Exhibitor Information and Sponsorship Opportunities available at the USCC website. www.compostingcouncil.org or call the USCC at 631. 737. 4931> _____________________________________________________________________________> Compost maillist - compost at mailman.cloudnet.com> http://mailman.cloudnet.com/mailman/listinfo/compost> _______________________________________> This list is a service provid
 ed by the US Composting Council (USCC).> (c) Copyright 2004 United States Composting Council - All rights reserved> > Opinions expressed do not necessarily represent the USCC, the Foundation, or the Board of Directors.> > Non-members of USCC are encouraged to join the Council through its website at: http://www.compostingcouncil.org/membership.cfm> > Members posting CC copies to the list and other addresses may have their posting privileges suspended. For discussion list policies and information regarding subscribing, unsubscribing, digest or other options, go to: http://mailman.cloudnet.com/mailman/listinfo/compost> > For additional help in unsubcribing or to report bugs and problems, send a message to the List Manager at compostlistmanager at compostingcouncil.org
_______________________________________
Join us as the US Composting Council's 17th Annual Conference & Trade Show, January 26-29, 2009 at the Westin Galleria, Houston, TX. The Largest Conference & Exhibition in North America for the Composting, Wood Waste, & Organics Recycling Industry. The Most Comprehensive Program of 11 Training Courses, 100+ Educational & Technical Presentations, and Facility Tours & "Live" Equipment Demonstrations from 20+ Manufacturers.
Conference Highlights & Program, Registration forms, Exhibitor Information and Sponsorship Opportunities available at the USCC website. www.compostingcouncil.org or call the USCC at 631. 737. 4931
_____________________________________________________________________________
Compost maillist - compost at mailman.cloudnet.com
http://mailman.cloudnet.com/mailman/listinfo/compost
_______________________________________
This list is a service provided by the US Composting Council (USCC).
(c) Copyright 2004 United States Composting Council - All rights reserved

Opinions expressed do not necessarily represent the USCC, the Foundation, or the Board of Directors.

Non-members of USCC are encouraged to join the Council through its website at: http://www.compostingcouncil.org/membership.cfm

Members posting CC copies to the list and other addresses may have their posting privileges suspended. For discussion list policies and information regarding subscribing, unsubscribing, digest or other options, go to: http://mailman.cloudnet.com/mailman/listinfo/compost

For additional help in unsubcribing or to report bugs and problems, send a message to the List Manager at compostlistmanager at compostingcouncil.org