Greywater Guerrillas

The California Building Standards Commission recently okayed the use of greywater (slightly dirty water from tubs, washing machines, etc.) to be used for irrigation. They were catching up on a revolution 20 years in the making.

1 minute read

October 14, 2009, 7:00 AM PDT

By Tim Halbur


Groups like the "Greywater Guerillas" (now Greywater Action) brought attention to the practice, which drought-plagued California is now finally embracing.

"Doug Hensel, who supervised the drafting of the new standards as assistant deputy director of the state Department of Housing and Community Development, believes they will help bring gray-water use into the mainstream. The state estimates that a family of four could save up to 22,000 gallons of water per year by diverting laundry water alone.

"We're hoping it catches on," Hensel said. "It's pretty neat.""

Tuesday, October 13, 2009 in Miller-McCune

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

October 28, 2026 - Zachary Whalen

A car drives through a puddle, making a large splash. Rain pours down.

California plans to bury El Niño’s downpour

If the state plays its cards right, it may be able to store a billion acre-feet of El Niño’s water in aquifers.

October 28, 2026 - Grist

Lake Powell with much of the water evaporated.

Desperate measures: Advocates weigh draining Lake Powell to fill Colorado River

Draining the reservoir could reduce evaporation losses by a couple hundred thousand acre-feet.

October 30, 2026 - Yale Environment 360

People vote in Chicago behind blue privacy screens

Chicago voters approve permanent festival grounds, penalty for vacant property owners

Currently, major summer and fall festivals take over public parks for weeks at a time, drawing criticism from nearby residents

November 5 - Block Club Chicago

Mayor Zohran Mamdani speaks into a microphone. He wears a gray suit.

NYC votes to cut outdoor dining red tape, speed up permitting

New York City also voted to allow the Department of Transportation to begin work on urgent projects before notifying elected officials.

November 5 - The City Reporter

People in Los Angeles going to the polls, following a sign with an "I Voted" design

California appears to reject Prop. 45

The proposition would have expanded the projects that qualify for a streamlined environmental review, effectively paring down the California Environmental Quality Act.

November 5 - Cal Matters