Ramping Up Recycled Wastewater

States like Colorado and water suppliers in parts of Southern California are expanding the use of recycled wastewater to protect dwindling drinking water supplies.

1 minute read

October 24, 2022, 8:00 AM PDT

By James Brasuell @CasualBrasuell


Bottled Water

Selins / Shutterstock

To address ongoing water shortages created by climate change and increasing populations in the Western United States, more states and cities  that rely on the Colorado River are turning to recycled wastewater to keep the taps flowing. 

Colorado water quality regulators recently gave preliminary clearance for potable reuse—treating and recycling waste water for human consumption. Southern California cities are also expanding potable reuse, following the lead of water suppliers in Orange County.

According to the coverage of the expanding use of recycled wastewater in Colorado, most states don't prohibit the use of recycled wastewater, but Colorado hopes that setting new standards can help increase the scale of facilities and output in the future.

Friday, October 21, 2022 in Associated Press via 9 News

Young Professional

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban and Environmental Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban and Environmental Planner

Get top-rated, practical training for planners

"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.

September 16, 2026 - Zachary Whalen

Overlapping highways

The state-sanctioned urbicide of Austin

People don’t kill cities. Freeways do.

September 8, 2026 - Benjamin Schneider

The Hoover Dam blocking the Colorado River. The river's water level is noticeably low. The cliffs surrounding the blue water are brown and jagged.

US to reduce Colorado River water deliveries to Mexico

A new Colorado Treaty amendment reduces Mexico’s Colorado River water allocation by 250,000 acre feet.

September 11, 2026 - The Arizona Republic

Geese flock to a frozen pond in Aurora, Colorado. There are houses in the background.

Colorado’s Largest Data Center Could Rise Next to Homes — Without a Public Hearing

The proposed campus would consume 11 times the power of Denver International Airport; as it has across the country, opposition mounts.

6 seconds ago - Capital & Main

A cluster of wind turbines beneath a stormy sky, above a forest where the leaves are beginning to change colors.

5 New England states march closer to 800 megawatt wind energy project

Securing federal approval for the project may be complicated under the Trump administration, which has historically been hostile towards domestic wind power.

September 16 - Inside Climate News

People boarding a bus on Maryland's Orange Route.

Baltimore to break ground on $50 million Transit Priority Project

The project will bring faster bus trips, safer streets and better bike connections to Baltimore.

September 16 - Mass Transit

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.