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Who owns the rain? Building a collection system.
The document discusses a case study on rainwater collection in Humboldt County, emphasizing its importance for water security and environmental sustainability. It compares regulations around rainwater collection in various locations and outlines the mechanics and benefits of such systems, providing a practical example of water collection efficiency. Moreover, it encourages community engagement in sustainability initiatives, offering various tools for mobilization.
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Who owns the rain? Building a collection system.
- 1. Democracy Unlimited HumboldtCounty RainwaterA Case Study in Open Source Community Action for SustainabilityLonny Grafman - March 2009
- 4. who owns therain?Colorado and Utah - rainwater collection is illegal.
- 5. Tucson and manyparts of India - rainwater collection is mandatory.
- 6. Bolivia, Year 2000,people injured and killed over water rights.http://www.internationalist.org/lapazmujeres171003www.jpg
- 7. why do it?Watersecurity
- 8. Less impact onthe waste water treatment plant
- 9. Less impact onoften failing sewer systems
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- 13. Less runoff, lesserosion
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- 16. Because it workshowdoes it work?a hole
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- 18. a bucket, +end use
- 19. a roof anda barrel, + end use
- 20. a roof, afilter and a barrel, + end use
- 21. a roof, afilter, a first flush and a barrel, + end usehow does it work?Rainfall data (R in in/time)
- 22. Footprint of collectionsurface (F in ft2)
- 23. Efficiency of collectionsurface (e ~ .5 to .95)
- 24. Conversion from ft3to gal (7.48 gal/ft3)
- 25. Collection/time = R* 1ft/12in * F * 7.48 gal/ft3 * ehow does it work?E.g. a 1900 square foot house with shingle roofMar total = 2.64 in/mo * 1ft/12in * 1900 ft2 * 7.48 gal/ft3 * .8Mar total = 2500 gallons for the month(station ID #231773)
- 26. how does itwork?Or… rule of thumb without roof efficiency factor
- 27. .6 gallons forevery inch of rainfall on each square foot.0.6 gal/(in * square foot)
- 28. how does itreally work?
- 29. A ClientDemocracy UnlimitedHumboldt County
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- 40. Steven and TrinityAddison
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- 44. CITY OF EUREKA-General Plan Goals & PoliciesGoal 1.KPolicies1.K.1 Wherever feasible, the natural terrain, drainage and vegetation of the neighborhood should be preserved with superior examples contained within parks or greenbelts.Neighborhood design should help conserve resources and minimize waste.
- 45. Neighborhoods should providefor the efficient use of water through the use of natural drainage, drought tolerant landscaping, and recycling.results1.5 years later
- 46. Rainwater System -$1,630
- 47. Variance cost additional- $785
- 48. Fence cost -$600
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- 52. so… what ifI think rainwater is collection is stupid?No problem. What sustainability cause do you care about?
- 53. How do wemobilize your community to address that cause?
- 54. What tools existto help?A few toolsWikis
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- 57. Int’l Journal forService Learning in Engineering
- 58. Directory of OpenAccess Journals
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- 60. Asterix, Identi.ca, wordpress.org,joomla.org
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Editor's Notes
- #5 India and Tuscon http://thinkchangeindia.wordpress.com/2008/06/06/putting-laws-into-practice-the-case-of-rainwater-harvesting/, http://www.awwa.org/Resources/WaterWiserNewsDetail.cfm?ItemNumber=42023 vs Colorado and Utah -http://www.ksl.com/?nid=148&sid=4001252, http://www.rainwatercollecting.com/blog/?p=56-In Bolivia, 2000, a 17 year old boy killed and many injuries as wellhttp://www.foodandwaterwatch.org/water/private-vs-public/corporations/Bechtel
- #6 These aren’t always the case, but often are. Have the audience populate this list.What is different between the water that falls and the water that runs off?
- #7 Most images from http://www.appropedia.org/Rainwater
- #8 http://www.rainwater-harvester.com/sizingyourharvester.htm
- #9 Here is a spreadsheet for sizing - https://spreadsheets.google.com/ccc?key=0AjTvqXcCy42EcFVhbWxnY2s2VDdjV0lsNzVvbnRVTEE&hl=en
- #10 Feel free to then multiply by a roof efficiency factor. This rule of thumb gives us 3000 gallons without the efficiency factor and 2400 gallons with the efficiency factor… pretty darn close to 2500 gallons.
- #12 Someone wants it
- #13 A partnership
- #14 Research
- #15 A student builds it…. Student is found through Appropedia
- #22 Omar is pursuing a bachelor's degree in environmental resource engineering at HSU, concentrating in water quality issues. Omar is interested in graywater systems for the recycling ability they offer for water, an increasingly limited resource.
- #23 Steven J. Addison has worked in the environmental conservation field work since he first feel in love with the Klamath River in the mid 90s. As an Environmental Resource Engineering major at Humboldt State University Steven has had a chance to continue his learning and understanding of natural processes, and hopes to one day contribute to writing future policies effecting water use on a national level.
- #29 http://www.appropedia.org/M_Street_Eureka_rainwater_catchment