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Line 8: − + − + + + + + − * https://www.harvestingrainwater.com/wp-content/uploads/Appendix3Calculations.pdf − * https://www.twdb.texas.gov/publications/brochures/conservation/doc/RainwaterHarvestingManual_3rdedition.pdf
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* Average Californian uses 108 gal/day (39,420 gal/year) [https://www.neefusa.org/story/water/home-water-use-united-states source: National Environmental Education Foundation]
* Average Californian uses 108 gal/day (39,420 gal/year) [https://www.neefusa.org/story/water/home-water-use-united-states source: National Environmental Education Foundation]
* Average American drinks 44 ounces/day (126 gal/year) [https://www.cdc.gov/nutrition/data-statistics/plain-water-the-healthier-choice.html source: CDC]
* Average American drinks 44 ounces/day (126 gal/year) [https://www.cdc.gov/nutrition/data-statistics/plain-water-the-healthier-choice.html source: CDC]
Sustainability Estimates
Sustainability Estimates:
* # of Californians sustained off 1 acre, based on...
* # of Californians sustained off 1 acre (with 100% catchment), based on...
** Annual Average Rainfall: 10.26 inches * 27,160 gallons/inch of rainfall = 278,661.6 gal / 39,420 gal/person/yr = 7 persons = about 2 average households
** Annual Average Rainfall: 10.26 inches * 27,160 gallons/inch of rainfall = 278,661.6 gal / 39,420 gal/person/yr = 7 persons = about 2 average households
** Minimum Rainfall: 3.41 inches * 27,160 gallons/inch of rainfall = 92,616 gal / 39,420 gal/person/yr = 2.4 persons
** Minimum Rainfall: 3.41 inches * 27,160 gallons/inch of rainfall = 92,616 gal / 39,420 gal/person/yr = 2.4 persons
Storage Capacity:
* number of people * daily water consumption (gal/person/day) * longest drought period (days) = needed storage capacity (gal) [https://www.harvestingrainwater.com/wp-content/uploads/Appendix3Calculations.pdf Source]
* 5 * 108 * 150 = 81,000 gal
Detailed resources for planning a build:
Detailed resources for planning a build:
* https://www.oregon.gov/bcd/documents/brochures/3660.pdf
* https://www.oregon.gov/bcd/documents/brochures/3660.pdf
* https://www.twdb.texas.gov/publications/brochures/conservation/doc/RainwaterHarvestingManual_3rdedition.pdf
But is it legal in California?
But is it legal in California?
* [http://www.leginfo.ca.gov/pub/11-12/bill/asm/ab_1701-1750/ab_1750_bill_20120606_amended_sen_v96.html0of%20that&text=The%20bill%20authorizes%20residential%2C%20commercial,systems%20comply%20with%20specified%20requirements. Rainwater Capture Act of 2012]
* [http://www.leginfo.ca.gov/pub/11-12/bill/asm/ab_1701-1750/ab_1750_bill_20120606_amended_sen_v96.html0of%20that&text=The%20bill%20authorizes%20residential%2C%20commercial,systems%20comply%20with%20specified%20requirements. Rainwater Capture Act of 2012]
Other resources I haven't looked at yet:
Other resources I haven't looked at yet:
* https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2015WR017871
* https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2015WR017871
* https://extension.arizona.edu/sites/extension.arizona.edu/files/pubs/az1864-2021.pdf
* https://extension.arizona.edu/sites/extension.arizona.edu/files/pubs/az1864-2021.pdf
* https://www.watercache.com/faqs/rainwater-harvesting-benefits
* https://www.watercache.com/faqs/rainwater-harvesting-benefits
* https://www.sandiegocounty.gov/content/sdc/dpw/watersheds/residential/RainBarrelInformation.html
* https://www.sandiegocounty.gov/content/sdc/dpw/watersheds/residential/RainBarrelInformation.html