A Victory for Greywater in California

Bone-dry California eases restrictions on greywater use, allowing wastewater from washing machines and bathtubs to spill onto the state’s lawns and lemon trees.

Plagued by drought and homeowner recalcitrance, California building officials last summer relaxed the rules for greywater use, allowing residents to hook up their washing machines to garden hoses without a permit … because they were doing it anyway.

On Aug. 4, the California Building Standards Commission effectively caught up with an eco-revolution that began here 20 years ago during the last drought. In 1989, the County of Santa Barbara became the first agency in the United States to change its building codes and legalize the use of household greywater — the slightly dirty wastewater from washing machines, bathtubs, showers and bathroom sinks — to irrigate backyard plants and trees. By 1992, the practice was legal in most western states, including California.

There was just one problem. Homeowners were installing greywater systems themselves without permits, or they hired plumbers who looked the other way. Over 20 years in Santa Barbara, city officials say, only four residents ever obtained greywater permits, much less paid the fees, set at $350 today. Meanwhile, hundreds, if not thousands, embraced do-it-yourself “laundry-to-landscape” diversions, bought biodegradable soap, connected their washers to outside tubes — if you actually hook it up to garden hose you can expect a burnt-out pump before long — and emptied buckets of bath water in their yards.

The Greywater Guerrillas, a Bay Area group that billed itself as part of the “Water Underground,” helped spread the know-how, and by 1999, according to a survey by the Soap and Detergent Association, nearly 14 percent of California homeowners were using greywater in their backyards. Today, that would be about 1.7 million households operating largely under the radar of city and county building inspectors. That growth is reflected in the Guerillas’ name, which has changed to Greywater Action.
Specifically, the new standards allow homeowners to use up to 250 gallons of greywater per day on their landscaping without a permit, if they follow a list of 12 do’s and don’ts. Arizona set the national precedent for relaxed greywater rules in 2001, and New Mexico and Texas soon followed suit.

“Finally, California is catching up; it does my heart good,” said Val Little, executive director of the Water Conservation Alliance of Southern Arizona, a consortium of water districts, cities and state and county agencies that studied the potential risk of greywater use in the 1990s and concluded it was safe.