rainwater harvesting to reduce runoff - … · rainwater harvesting to reduce runoff: ......
TRANSCRIPT
Rainwater Harvesting to Rainwater Harvesting to Reduce Runoff:Reduce Runoff:Reduce Runoff:Reduce Runoff:
From Poultry Barns to LaundromatsFrom Poultry Barns to Laundromats
Laurel Woodworth
Center for Watershed Protection
Laurel Woodworth
Center for Watershed Protection
About CWP
Non-profit 501(c)3, non-advocacy
organizationorganization
Work with local watershed groups,
l l t t d f d l tlocal, state, and federal governments
Provide tools communities need to
protect streams, lakes, and rivers
Why is CWP interested in this?
Water conservationGroundwaterMunicipal water
Stormwater management
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Stormwater BenefitsPhoto courtesy of
Reduction in volume of runoff
Photo courtesy of Harford County, MD DPW
Reduction in pollutant loadsloads
Reduction in Combined Sewer Overflow (CSO) bypass events
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Virginia Rainwater Harvesting Virginia Rainwater Harvesting g gg gSpecification & SpreadsheetSpecification & Spreadsheet
Detailed Specifications
Cistern Design Spreadsheet
Authors: Alex Foraste, Sarah Lawson, Tom Schueler, CWP, ,
www.vwrrc.vt.edu/swc/NonProprietaryBMPs.html
Center for Watershed Protection
p y
(Or search for: “Virginia BMP Clearinghouse”)
Tank Configurations
Tank Configurations to meet varying Design Objectives:
Center for Watershed Protection Figures by Foraste 2009
Current Project: Ag & Urban
Demonstration sitesPoultry barns cistern (April 2011)Laundromat cistern (Jan 2011)Laundromat cistern (Jan 2011)
Monitoring Source: RMSgVolumeWater quality
OutreachTours
Center for Watershed Protection
ou sWorkshops
Source: RMS
Important Partners Landowners
Mr. Dewitt Goin (poultry barns); Charlie Smith (laundromat)
R i t M t S l ti Rainwater Management Solutions Design & construction oversight
Longwood University Longwood University Monitoring
Natural Resources Conservation Service (Farmville) Natural Resources Conservation Service (Farmville) EQIP funding; site design review
Piedmont Soil & Water Conservation District
Center for Watershed Protection
Education & outreach
Urban SiteH d li W h l d Hydraulic Wash laundromat(Charlottesville)
3000 sq ft roof 3000 sq. ft roof
3000 gallon tank Fills up with 1.6” rain
Year-round demand for water (washing machines)
Monitoring: Precipitation Water level in tank Water use
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Water use
Agricultural SiteP i f l & l Private farm – cattle & poultry (Prince Edward Co.)
1.2 acres of roof 1.2 acres of roof
20,000 gallon underground tank
S l f i t Seasonal use of rainwater Evaporative cooling system
Monitoring for: Monitoring for: Precipitation Water use Water level in cistern Water quality (nutrients, bacteria,
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Water quality (nutrients, bacteria, metals)
Poultry Barns
Evaporative cooling is water-intensive
800 – 1000 gallons per warm dayday
Some barns need 3 – 4 wells
Rainwater harvesting can offset
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groundwater use
Construction of barns cistern…
Center for Watershed Protection Photos courtesy of: Rainwater Management Solutions
ComponentsV t filt t t bi t ffVortex filter = get out big stuffPump & pressure tankS di t filt k t kSediment filter = keep out muckUV filter = kill bacteria
Automatic well water backupB kfl tBackflow preventer
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Designed by Rainwater Management Solutions
Monitoring Goals
1. Quantify the volume of water saved
2 Q tif th l f ff d d2. Quantify the volume of runoff reduced
3 Determine the quality of water for safe3. Determine the quality of water for safe consumption by livestock, and potentially poultry.poultry.
4. Estimate nitrogen and phosphorus load
Center for Watershed Protection
g p preduction
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Lessons Learned (dang it!)
Keep dirt out (really?)
Make sure vortex filters are level
Setting up monitoring equipment is tricky!!
Building dimensions & site layout affect cost
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Need more basic designs for ag piggy banks
Grant Funders
Major Funders:National Fish and Wildlife FoundationAltria GroupEnvironmental Quality Incentives Program
(NRCS)
Supplemental:Dominion Foundation
Center for Watershed Protection
Chesapeake Bay Restoration Fund
Next Steps…
Continue monitoring (May – November)
A l fi di & d tAnalyze findings & produce reports
Workshops/Tours (Fall/Winter):Workshops/Tours (Fall/Winter):Urban audience: engineers, plan
reviewers, builders, developers, etc.pAg audience: poultry producers, dairy
producers, NRCS staff, Extension staff, etc
Center for Watershed Protection
etc.
Contact
Laurel WoodworthLaurel WoodworthCenter for Watershed Protection
(Charlottesville Office)
Email: [email protected]: (434) 293 5793Phone: (434) 293-5793
Center for Watershed Protection