International Rainwater Catchment Systems Association
International Rainwater Catchment Systems Conferences
  Next conference
  1st, Hawaii
  2nd, St Thomas
  3rd, Khon Kaen
  4th, Manila
  5th, Taiwan
  6th, Nairobi
  7th, Beijing
  8th, Tehran
  9th, Petrolina
  10th, Mannheim
  11th, Texcoco
  12th, New Delhi
  13th, Sydney
  14th, Kuala Lumpur
  Join IRCSA
  IRCSA Board

2nd International Conference on Rain Water Cistern Systems
St Thomas, Virgin Islands - June, 1984

Section C: Some Cistern Cystems

Paper C.1

Urban Water Harvesting System, Tucson Arizona

C. Brent Cluff
University of Arizona, USA


A urban water harvesting system in Tucson, Arizona is described. The system consists of a 100,000 gallon reservoir fed through a 6-inch pipe by a 4-acre urban watershed. In addition a 3-acre watershed is connected to the pond with both a earth lined and fibreglass reinforced asphalt channel.

The 3-acre watershed includes the acre lot on which the reservoir is located. A gutter collects the runoff from the house on this lot and directs it into the pond. The front driveway" is paved and directly connected to the pond so that a high percentage of its rainfall is harvested.

The reservoir is multipurpose providing irrigation for a large (4000 sq. ft.) garden and orchard area in addition to landscape irrigation. Also in the future the reservoir will provide sufficient water to take care of the flushing of toilets for a family of 8.

The reservoir also is used for the raising of fish thus providing both food and recreation. Trout is raised in the winter and tilapia in the summer. The pond also provides swimming, rafting and aesthetic enjoyment in an arid environment.

The cost effectiveness of the reservoir is high primarily because of the high watershed area to capacity ratio. With a relatively high demand the reservoir refills several times each year. Only a small percentage of the rainfall on the watershed is utilized because of the relatively small storage capacity of the reservoir. This percentage of utilization is estimated to be about 1.5 percent.

PDF of full document (14pp, 380kb)

Note: The IRCSA proceedings section is still new and under active management, If you find any problems, ommissions or corrections please contact the administrator so we can put things right.
Top of Page