The forecasted “Super El Niño” is expected to delay the start of Southern Arizona’s monsoonal season but by August it could trigger heavier, more intense rainfall, severe flash flooding, and unusually high humidity during its peak. While El Niño historically weakens global monsoons, its impact on the Desert Southwest creates unique atmospheric shifts for the June 15 to September 30 season.¹ Climate experts from the National Weather Service and the University of Arizona predict the season will unfold across three distinct phases: ²

A Delayed and Drier Onset: Early in the summer, El Niño’s atmospheric patterns alter the subtropical jet stream, creating persistent westerly winds across the Southwest.

Moisture Suppression: These westerlies act as a wall, driving out early moisture from the south and delaying the typical shift to monsoonal wind patterns.

Increased Fire Risk: A slower, drier start to the monsoon prolongs the summer dry spell, elevating the risk of wildfire ignition from dry lightning storms.

HIGH-INTENSITY PEAK (August into September)

Tropical Cyclone Activity: The incredibly warm ocean temperatures of a Super El Niño fuel severe hurricane activity off the Pacific coast of Mexico.

Tropical Moisture Pumps: While the hurricanes themselves rarely hit Southern Arizona directly, they act as massive atmospheric pumps, steering heavy tropical moisture straight into the Desert Southwest.

Rain Bombs and Flooding: As this extra moisture collides with the desert heat, it increases the likelihood of high-intensity storms, widespread flash flooding, severe dust storms, and heavy rainfall that could reach up to 150% of normal averages in some areas.

A SHIFT TO MOIST HEAT (after September)

High Humidity: Southern Arizona is famous for its dry heat, but the influx of Pacific moisture will cause humidity levels to skyrocket.

Stubbornly High Temperatures: Even with localized cloud cover and rain mitigating the most extreme temperature spikes, daily highs will remain brutally hot—frequently ranging between 100°F and 115°F. The added moisture will result in a heavy, oppressive “moist heat” rather than a dry one.

By Robert Marcos, photojournalist

Arizona, California, and Nevada are actively preparing for a future that may provide little or no Colorado River water through a combination of aggressive local conservation, infrastructure changes, and unprecedented collective agreements. On May 1st – driven by the imminent expiration of current river guidelines, the states finalized a joint Water Stabilization Plan to collectively slash usage by up to 3.2 million acre feet. J.B. Hamby, the Chairman of the Colorado River Board of California, said, “We’re putting forward additional measurable water contributions for the system. Without that, the system will continue to decline.” ¹

ARIZONA: Agricultural sacrifices and groundwater banking

Arizona holds the lowest-priority water rights among the major Lower Basin states, which means that it takes the earliest and deepest cuts during shortages.² Under multi-state and federal plans, Arizona has offered up to 760,000 acre-feet in voluntary reductions, nearly half of what typically flows through the Central Arizona Project canal.³ Central Arizona agriculture has borne the brunt of these reductions. In counties like Pinal, farmers have already been forced to operate at half their normal capacity, switching to high-tech drip irrigation or leaving fields fallow. ⁴

The state is shifting heavily toward managing its underground aquifers, heavily regulating new real estate developments that cannot prove a 100-year assured water supply independent of dwindling surface flows.

An article in the Manataba Messenger said, “In Phoenix, city leaders are getting ready for the possibility of Colorado River cuts by checking out alternative water sources and long-term reserves. Phoenix relies on several water sources, including the Colorado River through the Central Arizona Project. As future reductions become more likely, the city’s planning mirrors a broader trend across the Southwest: big cities are no longer seeing Colorado River shortages as just a distant threat. They’re preparing for a future where less river water might be available, and backup supplies might be needed to keep up with demand.” ⁵

CALIFORNIA: Agricultural efficiency and urban recycling

As the largest consumer of the river’s water, California has historically avoided the earliest shortage cuts, but now it has begun to force its massive agricultural districts to adapt to having less water.⁶ The Imperial Irrigation District which rceives 3.1 million acre feet of Colorado River water every year, is expanding its efficiency programs. On January 20th the IID Board of Directors approved the continuation of the District’s Deficit Irrigation Program for 2026. This program motives local growers to voluntarily pause irrigation on select perennial forage crops (such as alfalfa, Bermuda grass, and Klein grass) during peak summer water use windows. Growers are then financially compensated for their reduced crop yields.⁷

On May 15th the IID Board of Directors announced an amendment that would leave an additional 100,000 acre feet of Colorado River water in Lake Mead. The amendment increased the IID’s existing three-year conservation agreement capacity from 700,000 acre-feet to 800,000 acre-feet, in addition to the 106,111 AF conserved for Lake Mead in 2023. Cumulatively these programs are slated to add about 12 feet of elevation to Lake Mead by the end of the year.⁸

The Metropolitan Water District of Southern California, is investing billions of dollars into advanced local wastewater purification systems to reduce coastal cities’ reliance on imported river water –

Pure Water Southern California: MWD has partnered with the Los Angeles County Sanitation Districts to develop Pure Water Southern California, aiming to produce up to 150 million gallons of recycled water daily for 15 million people. MWD has allocated $150 million within its capital investment plan for the planning and final design of the project’s first stage, and has financed and operates a 500,000-gallon-per-day demonstration facility (the Grace F. Napolitano Innovation Center) to test advanced purification techniques before full scale construction.⁹

The Local Resources Program: MWD has provided financial subsidies to its 26 member public and private water agencies based on the volume of recycled water they successfully produced, and it has invested over $1.5 billion since 1990 to support more than 100 localized recycling and groundwater recovery projects across Southern California. Additionally, the MWD funds localized conversions, such as transforming unused sewer lift stations into active recycling plants for urban irrigation.¹⁰

Commercial and Research Grants: MWD has awarded grants to public and private entities to evaluate next-generation water-saving devices and urban reuse technologies. It has funded studies on innovative Membrane Bioreactors that are paired with reverse osmosis to reduce the energy and financial costs of recycling wastewater.¹¹

NEVADA: Focused on a new lower-lake pipeline and a war on turf

Nevada has the smallest allocation of the river but is widely considered to have established a blueprint for urban climate adaptation, having spent decades in preparation for the kind of low-water scenario the Southwestern US is now facing. ¹²

Low Lake Level Infrastructure: Nevada’s water manager, the Southern Nevada Water Authority has completed a “third” intake and a specialized low-level pumping station at Lake Mead. This will allow Las Vegas to continue drawing water even if Lake Mead drops below the deadpool level where water can no longer flow downstream to California and Arizona.¹³

A War on Turf: Nevada has passed strict laws mandating the removal of “non-functional turf” (decorative grass) at commercial, multi-family, and government properties. It also bans outdoor water features and prohibits new grass in future developments. ¹⁴

Indoor Water Recycling: Las Vegas treats and returns nearly 100% of its indoor wastewater back to Lake Mead. This cycle earns the state “return-flow credits,” stretching its small allocation significantly further than other states. ¹⁵

The Local Resources Program

The problem isn’t just that Southern California’s Coachella Valley has approximately 100 large commercial farms, 120 golf courses, dozens of world-class resorts, and one of the nation’s highest rates of per capita water use. It’s that 90% of the 330,000 acre feet of Colorado River water that the Coachella Valley Water District receives every year is sold to farmers (who have access to the Coachella Canal) for just $40.14 per acre foot¹. Cheap water encourages farmers to produce water-intensive crops like alfalfa instead of drought-tolerant crops and seasonal produce. Another problem is that this water is being imported from the Colorado River which is an increasingly unreliable source. And the final problem is that instead of the Valley’s water consumption falling, (as with other Southwestern municipalities), the Coachella Valley’s municipal water use continues to increase due to a rising population and an increase in the irrigation of crops and landscaping due to climate change.^{2 3 4}

An outside observer might easily think that the inhabitants of this green and verdant desert region are living in a bubble, and the facts seems to support that belief. But first some clarity: the farms and golf courses in this region use raw Colorado River water that’s diverted at the Imperial Dam then conveyed by the All-American and Coachella Canals. Whereas municipal water is pumped from the Coachella Valley Groundwater Basin, an aquifer that at one time contained an estimated 39.2 million acre-feet of water, just in its upper 1,000 feet.

Challenge #1 – Maintaining groundwater levels

The Coachella Valley Water District and four other water agencies have been doing their best to maintain groundwater levels through the use of groundwater replenishment facilities. These programs are designed to reverse decades of aquifer overdraft and ensure long-term water sustainability. By percolating 165,000 acre feet a year of imported water directly into the ground, the districts have successfully stabilized and even raised groundwater levels in historically depleted areas. But what has been left unsaid is that the two sources of imported water – the Colorado River and the State Water Project, are under severe long-term threat from climate change. Therefore Coachella Valley’s water districts have to plan for the day when they have no sources of imported water, and will have to depend entirely on groundwater.⁵

Challenge #2 – Convincing residents to use less water

The residents of the Myoma Dunes Water District – which serves Bermuda Dunes and a part of La Quinta, consumed an average of 217 gallons of water a day. While residents of Rancho Mirage, Palm Desert, Thousand Palms, Indian Wells, La Quinta, and Thermal consumed an average of 188 gallons of water per day. And residents of the Desert Water Agency, which serves Palm Springs and Cathedral City, used an average of 178 gallons of water per day.⁶ The residents of other comparably-sized desert cities use far less water. On average residents of Tucson use as little as 72 gallons a day, residents of Phoenix 92 gallons, and residents of Albuquerque use just 56 gallons per day.

While the Coachella Valley relies entirely on imported Colorado River water to recharge its aquifers, and loops recycled water back to its farms and golf courses, other Southwestern desert cities have shifted to advanced purification technology that recycles 100% of their wastewater directly back into municipal drinking supplies. In the Arizona cities of Phoenix, Glendale, Mesa, Scottsdale, and Tempe, they treat the recycled water to high standards so it can be used to irrigate sports fields, golf courses, commercial landscapes, and create or restore riparian habitats. It is also used to recharge aquifers and stored underground for use during times of shortage. Recycled water can extend water supplies, improve water quality, reduce discharge and disposal costs of wastewater, and save energy.⁷

Challenge #3 – Preparing for “Day Zero” when the Coachella Valley receives no more Colorado River water

If the current drought continues and Lake Powell reaches dead pool, it’s estimated that Lake Mead will also reach dead pool within two-to-four years. This means that absolutely no Colorado River water pass beyond Hoover Dam and into the lower Colorado River basin. The Colorado River Aqueduct, the All-American Canal, and the Coachella Canal would be shut down. In this worst-case scenario, the Coachella Valley would survive by pumping from its underground aquifer, though this would immediately trigger a severe, unsustainable deficit. Because the region averages only 3 inches of rainfall annually, its primary long-term buffer would be exhausted without Colorado River water being available to replenish it.⁸

Without imported water the valley’s water supply would shrink by roughly 50%. To prevent the aquifer from going dry, the State of California would likely enforce extreme water rationing, ban all outdoor ornamental landscaping, and trigger a massive, forced downsizing of the local agricultural sector. ⁹ Why not do some of these things now instead of waiting until the Colorado River has dried up?

by Robert Marcos, photojournalist

If Lake Powell ever dries up completely scientists excavating the exposed reservoir floor will uncover a massive, human-made geological record known as anthropogenic stratigraphy. This towering wall of trapped sediment, which already reaches up to 150 feet thick in some areas, acts like an open book detailing the history of Lake Powell. Researchers will find a distinct, repeating pattern of cyclic sand-mud interbeds that chronicle the reservoir’s seasonal fluctuations and regional hydroclimate. The thick layers of coarse sand will mark rapid, powerful depositional events fueled by annual spring snowmelt and dramatic upstream floods. Conversely, the alternating bands of thinly laminated, fine-grained lacustrine mud will reveal prolonged periods of high water levels when the reservoir was full and the currents slowed, allowing the finest suspended particles to settle to the canyon floor.¹

Beneath this structural rhythm, a geochemical analysis will expose a darker record of the West’s industrial and agricultural history. Because the dam permanently trapped Colorado River sediments that once flowed naturally to the sea, the dry lakebed will serve as a containment sink for concentrated toxins and heavy metals. Geologists and environmental scientists will encounter dense pockets of arsenic, lead, selenium, boron, and mercury swept down from upstream agricultural runoff and legacy mining districts. Most notably, the layers will hold chemical fingerprints from historical events like the 2015 Gold King mine spill and the submerged yellowcake uranium mill tailings pile near Hite. As water levels vanish, these hazardous materials will remain bound to the platy clay aggregates and iron oxide coatings of the sediment, posing a significant risk of toxic dust storms if re-mobilized by the wind.²

Finally, the deepest trenching will reveal a stark ecological and physical boundary line: the pre-dam canyon floor. At the very base of the mud, scientists will strike an erosional surface composed of native boulders, coarse river gravels, and heavily weathered sandstone that directly predates 1963. Preserved just above this bedrock, researchers will find an anaerobic time capsule of organic debris. This includes preserved strands of invasive tamarisk and Russian thistle, ancient cottonwood fragments, and dense layers of decaying organic matter that once starved the deep reservoir of oxygen. By using advanced tools like X-ray diffraction, environmental DNA (eDNA), and scanning electron microscopy, scientists will be able to reconstruct the precise timeline of how human engineering completely transformed, and ultimately choked, a vibrant desert river ecosystem.³

The 85-year old Colorado River Aqueduct – which was constructed over a 8-year period beginning in 1933, is a major water conveyance system that brings 1.2 billion gallons of Colorado River water to Southern California every day. The aqueduct was paid for by voters in 13 Southern California cities who overwhelmingly approved a $220 million municipal bond in order to finance the monumental construction project. Managed by the Metropolitan Water District of Southern California, the aqueduct stretches 242 miles across the Colorado and Mojave deserts, tunnels under two mountain ranges, and rises a total of 1,617 feet in elevation from its starting point downstream of Parker Dam near Lake Havasu.¹

Numerous engineering features mark the aqueduct, including dams, reservoirs, pumping plants, tunnels, canals, conduits, inverted siphons, and transmission lines. Each of these parts works together to provide what was determined to be the most efficient, cost-etfectlve, and safe combination of transporting water from the Colorado River to the southern California coastal basin. The aqueduct has always been much more than just a canal. Its engineering coincided with American during the Depression-era, when the appearance and promotion of technological “progress” provided the American public with a sense of accomplishment and pride. During its construction the aqueduct provided jobs for 35,000 people for over eight years.

The combination of the total height that water is lifted (1,617′) and the aqueduct’s 242-mile length was unprecedented, as was the aqueduct’s carrying capacity of 1,605 c.f.s. The vertical synchronous motors driving the pumps were the largest of these types of motors then constructed. The difficulties encountered during the construction of the Mt. San Jacinto tunnel received national attention, and engineers argued that it was one of the most difficult tunnel construction jobs undertaken in the history of world engineering. Some of the equipment introduced and engineering techniques employed during the aqueduct’s construction overall were celebrated for their ingenuity and ability to set standards for future projects of similar magnitude. The Parker diversion dam had to be erected upon bedrock 233′ deep, which at the time made it the world’s deepest. The Colorado River Aqueduct overall was the world’s most technologically-advanced water conveyance system, and it has proven its reliability by serving the needs of 19 million Southern California residents for the last 85 years.

In a letter published by Environmental Research Letters, Andrew Berardy and Mikhail V. Chester of Arizona State University examined the agricultural and beef industry’s dependency upon water and power. Athough their research was focused the effects of climate change in Arizona, their findings could be applied almost anywhere in the American Southwest.

“Arizona’s predominately irrigated agriculture relies on water imported through an energy intensive process from water-stressed regions. Most irrigation in Arizona is electrically powered, so failures in either energy or water systems can cascade to the food system, creating a food-energy-water nexus of vulnerability.” Using data provided by the USDA, the U.S. Geological Survey, Arizona crop budgets and region-specific literature, the two scientists predicted that a temperature increase above the baseline could decrease yields by up to 12.2% per 1° centigrade for major Arizona crops and would require increased irrigation of about 2.6% per 1° centigrade.¹

Modern agricultural production is made possible by systems working together to deliver energy and water resources necessary to provide a reliable food supply. This interdependency creates the food-energy-water nexus. Arizona is a major agricultural producer, supplying considerable animal feed, livestock, milled grain products, meat, and other food products to cities throughout the U.S.

The Phoenix region’s large volume of food related exports means that reduced yields would have a signifcant impact on overall export capacity for Arizona. The most significant food related exports are to cities near Arizona – including Los Angeles, San Diego, El Paso, and Las Vegas. Tucson receives 100% of its live animals and fish, 85% of its other agricultural products, 83% of its other foodstuffs, and 69% of its meat and seafood from within Arizona. Phoenix receives 87% of its other agricultural products, 73% of its animal feed, 57% of its cereal grains, 51% of its other foodstuffs, and 51% of its live animals and fish from within Arizona. Therefore, disruptions to the agricultural system in the greater Phoenix area would have both a local impact, and would be felt across the Southwest in California, Nevada, and Texas.²

Shocks and strains on energy and water production and delivery systems may result in failures which cascade to food systems. In addition, feedback loops across the nexus could create compounding vulnerabilities, as failures in one system may propagate to another. Potential disruptions such as population growth, climate change, and interruptions to energy and water supply cause problems in food, energy, and water systems that combine and cascade to have downstream impacts on food supply and farm viability, which feed back into population growth in an iterative cycle.

Climate change already has significant negative impacts on agriculture in the United States, causing substantial economic costs and raising serious questions about the vulnerability of food supply chain³. The Southwest is especially challenged due its rapidly increasing population, changing land use and land cover, limited water supplies, and long-term drought⁴. Arizona is largely a semi-arid desert receiving only 20.4 cm of rain across only 36 days per year on average and with an average yearly temperature of 24° centigrade. Despite a resulting reliance on imported water and sprawling housing developments reducing available arable land, Arizona has a strong agricultural history and significant specialty crop production.⁵ The strain of irrigation required for agriculture is manifested in crop losses for Arizona farmers, as reflected in figure 3, showing key drivers of yield loss as water shortage, water costs, energy costs, and equipment failure. In 2013 these problems affected about 15% of irrigated farmland in Arizona.

Failures in the Arizona food-energy-water nexus could cause disruptions throughout the Southwest as food supply chains for urban centers like El Paso, Los Angeles, and San Diego shift. There is also the potential for cascading impacts because these cities have their own exports which might be disrupted. As cities throughout the Southwest look to meet their own needs, there may be a significant change in food supply across the region. Regardless of potential systematic failures and reductions in crop yields, it is very likely that consumptive water use will increase as average temperature increases. Sustainable food supplies in Phoenix and Tucson, as well as other agriculturally productive regions of the Southwest, will require a greater amount of water drawn from sources that are already strained.

Please read the entire study, here

by Robert Marcos

Most of us might assume that our monthly utility bills are slowly paying off the power grid, but the reality is that the electrical grid is a financial treadmill that never actually stops. This constant cycle of compounding interest, depreciation, and emergency retrofits means that the grid is never truly paid off; instead, consumers are locked into an endless loop of funding an aging asset that falls deeper into debt with every necessary upgrade.¹

Energy lost during transmission: In the United States about 5% of generated electricity is lost during transmission and distribution, though some sources put the figure closer to 6–7% depending on how the losses are defined and measured.²

Physical Vulnerabilities: Critical substations are often located in extremely remote locations and are only protected by basic chain-link fences.

Threat of Electro-magnetic Pulse: Solar storms and high-altitude atomic detonations could knock out a power grid by inducing massive electrical currents in transmission lines that might overload and permanently destroy critical high-voltage transformers.

Sniper and Ballistic Attacks: Attackers can easily target and puncture fluid-filled high-voltage transformers from a distance.

The benefit of generating power where it’s needed

Generating power where it is consumed significantly reduces transmission losses that occur over long-distance power lines. In conventional centralized systems, electricity can lose a notable percentage of its energy as heat while traveling across vast grid networks. By producing electricity locally—through distributed energy resources such as rooftop solar, microturbines, or small-scale wind—these losses are minimized, resulting in greater overall system efficiency and more effective use of generated energy.³

Localized power generation also enhances grid resilience and reliability, particularly in regions vulnerable to extreme weather, wildfires, or infrastructure strain. Decentralized systems can operate independently or in microgrids, allowing critical facilities and communities to maintain power during outages that would otherwise disrupt centralized systems. This distributed approach reduces dependence on a single point of failure and supports faster recovery during emergencies.⁴

In addition, generating power at the point of use can provide economic and environmental advantages by aligning energy production with local needs and resources. It enables the integration of renewable energy sources tailored to regional conditions, reduces the need for costly transmission infrastructure, and can lower energy costs over time. For communities, businesses, and utilities, this approach supports cleaner energy adoption while fostering greater control over energy consumption and sustainability goals.⁵

by Robert Marcos, photojournalist

We’ve heard thousands of times (without sources being provided) that 40 million people are dependent upon Colorado River water. But which cities in the American Southwest are 100% dependent and would vanish without it?

YUMA ARIZONA

Yuma, Arizona, relies on the Colorado River for all of its municipal drinking water and is heavily tied to the river for its massive agricultural economy. Yuma has a population of 103,500 permanent residents which share a Colorado River water entitlement of 980,000 acre feet: 97% of which is used for agriculture and the remaining 3% is allocated for domestic, commercial, and military operations – such as those at the U.S. Army Yuma Proving Ground. Yuma conserves its water through high-tech agricultural irrigation, extensive canal automation, municipal restrictions, and wastewater recycling. Despite being a major agricultural hub, local farmers have reduced water usage by nearly 20% while doubling food production over the last three decades.

Agriculture & Irrigation

With agriculture accounting for the vast majority of water use, Yuma’s agricultural sector employs cutting-edge conservation techniques: ¹

Automated & Advanced Irrigation: Farmers utilize furrow, sprinkler, and drip systems optimized for specific crops. Irrigation districts are rolling out autonomous systems with remote-controlled canal gates to deliver water in real-time and eliminate excess diversion.

Precision Technology: Fields are leveled using GPS and laser technology, which minimizes runoff and waste.

Concrete-Lined Canals: Over 99% of farmer-owned ditches and irrigation networks are lined with concrete or buried as underground pipelines to eliminate seepage.

Municipal & City Efforts

The City of Yuma actively manages its municipal supply through strict conservation and drought response plans.²

Landscape Restrictions: The city encourages residents to adopt desert landscaping and transition away from water-heavy turf. Residents are advised to water only between 7 p.m. and 7 a.m. to prevent evaporation.

City Facilities: During declared water shortages, the city limits operations of water features, reduces winter grass overseeding, and limits facility water use.

Wastewater Recycling: The city recycles about 40% of its treated municipal water, which is safely discharged back into the environment to recharge the local aquifer and supply the Colorado River.

GREEN RIVER, WYOMING

As of 2026, the city of Green River, Wyoming had an estimated population of 11,307 people. The city itself does not hold an independent interstate water right; instead, its water use is governed by Wyoming’s state allocation within the broader “Law of the River” framework. Under the Upper Colorado River Basin Compact of 1948, the State of Wyoming is entitled to 14.00% of the total Upper Basin water allocation. This translates to a maximum full-supply entitlement of 1,043,000 acre-feet of water per year, the vast majority of which is sourced from the Green River basin.³

The city of Green River, Wyoming manages water conservation through modernized infrastructure, rigorous system auditing, and targeted wastewater recycling, operating in tandem with broader basin-wide conservation blueprints. Because Wyoming faces growing pressure to safeguard its Upper Colorado River Basin share, local municipal initiatives focus heavily on eliminating system losses and maximizing structural efficiency.⁴

Advanced Infrastructure and Metering

Universal Municipal Metering: The City of Green River Water Distribution department actively maintains over 4,200 water meters across commercial and residential lines. Universal metering prevents unmonitored usage and allows for exact data tracking to optimize conservation modeling.

Pressure Management: The distribution team actively manages 25 Pressure Reducing Valves (PRVs). Maintaining controlled water pressure minimizes stress on pipes, directly preventing underground ruptures and chronic structural leaks.

System Leaks and Audits: The city continuously updates its sanitary, stormwater, and water line mapping to execute aggressive leak detection and repair protocols.⁵

LAKE HAVASU, ARIZONA

Lake Havasu, Arizona, has a permanent population of 59,871 and is entitled to 28,582 acre feet of Colorado River water, annually. The city employs a multi-faceted approach to water management:⁶

Advanced Wastewater Recycling: The city operates three wastewater treatment plants that produce A+ quality reclaimed water. This recycled water is used to irrigate local golf courses and parks instead of draining fresh drinking water supplies, and the surplus is safely returned to the Colorado River for downstream use.

Advanced Metering Infrastructure (AMI): Lake Havasu is replacing approximately 32,000 residential water meters with smart technology. This system provides near real-time usage data and leak detection alerts via the EyeOnWater Platform, allowing residents to quickly spot and fix running toilets or plumbing leaks.

Mandatory and Voluntary Measures: The city’s conservation plan includes guidelines that limit non-essential uses like irrigation and prevent water waste. Residents are encouraged to water early in the morning to reduce evaporation and use mulch to lock in soil moisture.

BULLHEAD CITY, ARIZONA

Bullhead City Arizona has a permanent population of 43,200 and an annual entitlement to 15,210 acre feet of Colorado River water. Bullhead City, Arizona, actively combats Colorado River water shortages through phased municipal codes. Key actions include:⁷

Phased Restrictions: The city’s code outlines voluntary rules for Tier 1 shortages (fixing leaks, taking shorter showers), which escalate to mandatory bans on misting systems, decorative fountains, and driveway washing during Tier 2 shortages.

Turf Reduction Programs: Bullhead City offers rebates for replacing high-water-use grass with desert landscaping. The city also partners with local HOAs, using state grants to fund large-scale grass removal and park revitalization projects.

Device Rebates: The city provides direct financial incentives for residents and businesses to install smart irrigation controllers, high-efficiency toilets, washing machines, and hot water recirculation systems.

Aquifer Injection: The city recovers effluent (reclaimed water) at the Section 10 Wastewater Treatment Plant, injecting it into the Colorado River aquifer to ensure it is returned to the Colorado River system as return flow.⁸