Similar to alternative water sources and water storage, rainwater catchment has been an important strategy for improving streamflow implemented by the RCDs on behalf of the Coho Partnership. These projects have become more popular in recent years, with a positive shift in perception both from the public and regulatory agencies, especially during drought. Taking advantage of California’s rainy winter months and storing water for use in the dry summer months, rainwater catchment is a unique and valuable resource available to everyone! Catchment systems harvest rainwater off of a collection surface (such as a building roof or other elevated hard surface) for storage until it is needed in the summer/fall dry season for non-potable uses such as irrigation, livestock water, or equipment wash water. Rainwater can also be harvested for potable use, although there are more regulations and higher standards for water quality and treatment. See below for examples of rainwater storage and system components.
As with other alternative water source projects, storage is the missing element. Given our Mediterranean climate in Northern California, the average rooftop will generate more rainwater runoff than a typical homeowner can feasibly store. However capturing even a few thousand gallons of rainwater for use in the summer can make a difference in restoring dry season streamflow.
Components of Rainwater Catchment Systems
1221 Farmers Lane, Suite F
Santa Rosa, CA 95405
707-569-1448 ext. 104
Images are made available for personal use only and may not be copied, reproduced, or used in any way.
© 2009-2019 Russian River Coho Water Resources Partnership