Single Home Rainwater Harvesting Report
Print Page   |   Contact Us   |   Sign In   |   Join Now!
Community Search
Online Store: Manuals & Papers
Main Storefront

Single Home Rainwater Harvesting Report

Item Options
Sign in for your pricing!
Price: $20.00
Quantity: *

This report summarizes results for a three-year study of a single-family home in Key Largo, Florida, supplied by dual water sources, i.e., rooftop rainwater and utility-supplied water for both potable and non-potable uses. The rainwater harvesting system incorporated a water treatment system for potable uses. The study measured captured rainwater and use, utility water consumed, and reduction in stormwater runoff. The excess rainwater was directed to a spreader swale for underground infiltration resulting in zero runoff. Over a three-year period, the system captured 108,500 gallons (72%) of all rainwater (150,500 gallons) that fell on the single-family roof. As a result, utility water consumption was reduced to 33.9 gallons per capita per day (gpcd), compared to the utility average of 107 gpcd. Total water consumption (utility water plus rainwater) was 83.6 gpcd, still below the utility average, but greater than that of water-conserving homes, due in part to increased rainwater consumption when the rainwater storage tank was full. The initial capital, maintenance and life-cycle costs were documented.


Current and projected life-cycle-costs per gallon of treated rainwater are compared to utility.  It is concluded that a well-designed and maintained rainwater harvesting system can 1) significantly reduce the amount of water required from a public utility; 2) deliver very high quality water that exceeds the U.S. Environmental Protection Agency (EPA) Drinking Water Standards at a competitive price; and 3) result in zero stormwater runoff. This rainwater harvesting demonstration project is expected to inspire investment in the modern revival of this ancient practice by governmental entities, philanthropists and homeowners.

more Calendar

3/30/2020 » 3/31/2020
Rainwater Catchment Systems Designers Workshop -#21120

4/1/2020 » 4/2/2020
Rainwater Catchment Systems Installer Workshop #21110

Membership Software Powered by YourMembership  ::  Legal
This website uses cookies to store information on your computer. Some of these cookies are used for visitor analysis, others are essential to making our site function properly and improve the user experience. By using this site, you consent to the placement of these cookies. Click Accept to consent and dismiss this message or Deny to leave this website. Read our Privacy Statement for more.