Rainwater harvesting

Relating to harvesting rainwater.

Rainbarrel workshop

Date range: 
November 29, 2009 - 10:00am - 3:00pm

Governor declared that California is in a drought, what does that mean, and are we really? Are canals or dams the only solution, or can we all do something to help ensure reliable water supply, less sewage overflow and contamination of our water bodies. Those who have rain-catchment, probably noticed that our very first rain several weeks ago had practically topped off their rain-barrels. Ever wonder how much rain we can catch and store? What the expected/unexpected benefits might be?

Rainwater

Rainwater enters a series of drumsRainwater enters a series of drums

Sample rainwater harvesting calculations

Sample rainwater harvesting calculations in 3 different document types.

Rainfall data from Berkeley

Rainfall data from San Francisco

Some plots of historical rainfall in San Francisco: (uses USGS data, 1960-2007)

Rainfall Data and Calculations

Sample charts and calculations looking at rain potential, frequency, and patterns in San Francisco and Berkeley, California. Sample charts show how large a tank would be needed to store rainfall from this area.

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