Arizona is one of the fastest-growing states in the U.S., with an economy that offers many opportunities for workers and businesses. But it faces a daunting challenge: a water crisis that could seriously constrain its economic growth and vitality.
Setting the course for a Colorado River with less water is an enormous challenge that’s not likely to satisfy everyone. And climate change has created a collision course with wildlife.
The river isn’t just managed to accommodate people. Governments are also responsible for the ecosystems that sustain fish, birds and other animals. The U.S. Fish and Wildlife Service (USFWS) is an important player in the battle that’s ahead. A letter submitted by USFWS to the Bureau of Reclamation has as many questions as answers.
A new but little-known change in California law designating aquifers as “natural infrastructure” promises to unleash a flood of public funding for projects that increase the state’s supply of groundwater.
The change is buried in a sweeping state budget-related law, enacted in July, that also makes it easier for property owners and water managers to divert floodwater for storage underground.
With California facing a hotter and drier future — punctuated by bouts of extreme weather — state officials are moving forward with a new framework for urban water use that could require some suppliers to make cuts of 20% or more as soon as 2025.
Many of the suppliers facing the harshest cuts are located in the Central Valley and in the southeastern part of the state — large, hot and primarily rural areas that have historically struggled to meet conservation targets.
A new but little-known change in California law designating aquifers as “natural infrastructure” promises to unleash a flood of public funding for projects that increase the state’s supply of groundwater.
The change is buried in a sweeping state budget-related law, enacted in July, that also makes it easier for property owners and water managers to divert floodwater for storage underground.
According to new data released by the California State Water Resources Control Board (SWRCB), average monthly residential water use sharply declined in the first half of 2023, with water stores in reservoirs and other places continuing to remain well above average.
For years, environmentalists have argued that the Colorado River should be allowed to flow freely across the Utah-Arizona border, saying that letting water pass around Glen Canyon Dam — and draining the giant Lake Powell reservoir — would improve the shrinking river’s health.
Now, as climate change increases the strains on the river, this controversial proposal is receiving support from some surprising new allies: influential farmers in California’s Imperial Valley.
The San Diego County Water Authority was recognized with a national award from the Alliance for Water Efficiency for programs that help county residents and businesses conserve water. The Water Authority earned the 2023 Utility Innovation Award for developing and deploying of one of the first and most comprehensive multi-benefit water-use efficiency incentive programs in the nation, in partnership with the County of San Diego.
The partnership combines the strength of the region’s wholesale water supplier with the county’s stormwater department, which together have co-funded incentive and educational programs that produce both water supply and water quality benefits.
The partnership also includes a technical assistance program, the Landscape Optimization Service, which helps large landscape owners replace turf grass with sustainable landscaping. In addition, the Water Authority launched the “Multi-Benefit Stacked Incentives Learning Network” to bring together its 24 member agencies and 21 stormwater agencies to foster investments with multiple benefits.
The Alliance for Water Efficiency is a national nonprofit organization headquartered in Chicago dedicated to the efficient and sustainable use of water. The organization advocates for water-efficient products and programs and provides information and assistance on water conservation efforts.
“The Alliance for Water Efficiency was thrilled to present the 2023 Utility Innovation Award to the San Diego County Water Authority,” said AWE President and CEO Ron Burke. “The Water Authority … has been a longtime, trusted partner in this work. Our staff was excited to present this award in recognition of their innovative programs to provide services to their customers that conserve water and advance water efficiency throughout San Diego County.”
In addition to its partnership with the county, the Water Authority regularly works with other agencies to promote water efficiency as a way of life. Since 2021, the Water Authority has partnered with SDG&E to install water-efficient toilets along with energy saving devices for income qualified residents.
“Helping water users improve efficiency reduces the need for imported supplies as we embrace sustainable practices,” said Mel Katz, chair of the Water Authority’s Board. “This award highlights successful efforts by the Water Authority and its partners to ensure San Diego County can sustain our safe and reliable water resources for the long-term.”
Earlier this year, the Water Authority secured $3 million from DWR’s Urban Community Drought Relief Grant and $250,000 from the Proposition 1, Round 2 IRWM Grant to expand the program, bolstering the agency’s long-running efforts to enhance water affordability. The program is also funded through a partnership between the Water Authority and the Metropolitan Water District of Southern California.
(Editor’s Note: For rebates, classes, and water-saving tips go to: sdcwa.org/your-water/conservation/.)
Water recycling reduces the need to import or develop additional drinking water supplies. It is a vital water management strategy to ensure a safe, reliable, and locally controlled water supply to support healthy environments, robust economies, and high quality of life.
Water and wastewater agencies in San Diego County are developing or expanding their water recycling infrastructure. Among those at the forefront is the Olivenhain Municipal Water District. OMWD marks a significant milestone in August: the 20th anniversary of its award-winning 4S Ranch Water Reclamation Facility, which began serving high-quality recycled water for irrigation in August 2003.
The Olivenhain Municipal Water District’s award-winning 4S Ranch Water Reclamation Facility celebrates its 20th anniversary in August 2023. Photo: Olivenhain Municipal Water District
OMWD annexed the 4S Ranch and Rancho Cielo Sanitation Districts from the County of San Diego in 1998. OMWD also took ownership of a small wastewater treatment facility in 4S Ranch. This facility had the capability to treat 0.25 million gallons per day (MGD) of wastewater from the surrounding commercial center and condominium complex. Treated wastewater was disposed of by spraying it on nearby unimproved pastures.
Recognizing the significant development plans for the 4S Ranch area, OMWD expanded the capacity of the facility to 2.0 MGD. As part of this expansion, OMWD also incorporated additional treatment phases of filtration and ultraviolet disinfection, improving water quality. OMWD required area developers to install the entire recycled water infrastructure for their planned communities.
Today, the facility produces over one million gallons of recycled water per day. It is delivered to irrigation customers in the southeastern portion of OMWD’s service area for use at HOA common areas, schools, parks, streetscapes, and golf courses. Together with recycled water purchased from nearby water and wastewater agencies to serve customers in portions of Encinitas and Carlsbad, OMWD now serves up to 15 percent of its customers’ total water demand with recycled water.
“For 20 years, OMWD has proudly served 4S Ranch and neighboring communities with high-quality recycled water, reducing the use of drinking water for irrigation,” said OMWD Vice President Matthew Hahn. “As California continues to face water supply challenges, the expansion of our recycled water system strengthens our water supply reliability and promotes sustainable water management.
OMWD serves up to 15% of its overall demand from recycled water treated through its award-winning 4S Ranch facility. Photo: Olivenhain Municipal Water District
Water recycling is the process of capturing and treating wastewater, for non-domestic purposes such as irrigation and industrial processes.
Water and wastewater agencies across San Diego County are developing or expanding their recycled water systems to reduce the need to import or develop other supplies.
Since 2003, OMWD has significantly increased its recycled water purchases through connections with neighboring agencies, including the City of San Diego, San Elijo Joint Powers Authority, Rancho Santa Fe Community Services District, and Vallecitos Water District. OMWD now serves over two and a half million gallons of recycled water every day. Each year, OMWD installs additional recycled water pipelines and converts more customers from potable water to recycled water.
By 2027, the volume of recycled water produced in the U.S. is projected to increase 37% from 4.8 billion gallons per day to 6.6 billion gallons per day, according to a recent survey by Bluefield Research.
In 2021, the Olivenhain Municipal Water District completed several replacement and upgrade projects at its 4S Ranch Water Reclamation Facility. Photo: Olivenhain Municipal Water District
As a founding member of the North San Diego Water Reuse Coalition, OMWD works with nine northern San Diego County water and wastewater agencies across jurisdictional boundaries to reduce the impact of water supply shortages on San Diego County’s $268 billion economy. This regional approach has proven successful in developing local projects as well as obtaining $9 million in funding, significantly reducing the costs of water recycling projects for North San Diego County water ratepayers.
In addition, the Coalition has also secured federal funding of $23.8 million to help cover costs for water reclamation projects through 2025.
Water and wastewater agencies across San Diego County including OMWD are developing or expanding water recycling projects, because every gallon of recycled water reduces the need to import or develop other supplies. Photo: Olivenhain Municipal Water District
As it looks forward to the next 20 years, OMWD continues to expand its recycled water capacity. It began construction this summer on three recycled water pipelines near Calle Barcelona in Carlsbad and in Village Park in Encinitas. Once complete, OMWD can convert up to 27 meters to recycled water, offsetting 12.7 million gallons of potable water used annually for irrigation.
OMWD has long pursued alternative water supplies like recycled water, a reliable, drought-proof approach for complementing existing water sources.
The San Diego County Water Authority has supported the development of recycling projects for decades, through membership in groups such as the WateReuse Association and collaborative efforts to promote local reuse efforts. Approximately 35,000 acre-feet of recycled water is beneficially reused within the Water Authority’s service area annually, and the volume is expected to continue growing as new and expanded plants come online.
(Editor’s note: The Olivenhain Municipal Water District is one of the San Diego County Water Authority’s 24 member agencies that deliver water across the San Diego County region.)
In the opening chapter of “The Ministry for the Future,” science-fiction author Kim Stanley Robinson details a calamitous heat wave that kills almost all the residents of a small town. In another chapter, he imagines a catastrophic flood that wipes out Los Angeles.
The late Octavia Butler described a Southern California reeling from years of drought in “Parable of the Sower,” and Paolo Bacigalupi writes about a near-future Southwest that’s also been devastated by drought.
The Water News Network is San Diego County’s source for water news and information.
