Producer
Southern Nevada Water Authority (SNWA)
Southern Nevada Water Authority (Las Vegas NV; regional agency; serves approximately 2.3 million people in the Las Vegas metropolitan area and surrounding communities; operating since 1991) holds Nevada's entire Colorado River allocation of 300,000 AF/yr — the smallest Lower Basin state allocation. Nevada accounts for only 1.7% of Colorado River allocations but delivers water to the driest major metropolitan area in the US (Las Vegas averages 4.2 inches of annual precipitation). SNWA's primary intake is at Lake Mead; SNWA operates Intake No. 1, Intake No. 2 (2011), and Low Lake Level Pumping Station (2015) — a $1.4B infrastructure investment specifically designed to pump from Lake Mead at historically low elevations (as low as 895 feet elevation, versus Lake Mead's historically critical threshold of 895-900 feet). SNWA has reduced Las Vegas metro per-capita outdoor water use by 47% since 2002 through one of the most aggressive water conservation programs in the US — eliminating non-functional grass from commercial and HOA landscaping. Despite population growth, Las Vegas' total Colorado River water use in 2022 was lower than in 2000. SNWA also recycles approximately 94% of all indoor water use by treating and returning it to Lake Mead for credit — a unique recycling loop that makes Las Vegas' effective indoor water consumption nearly zero-sum.
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Colorado River Intake & Delivery
50%Water Recycling & Return Credits
30%Conservation Programs
15%Regional Water Management
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Did you know2023
Las Vegas casinos — among the most water-intensive commercial facilities in the US, with their fountains, pools, and hotel operations — consume water that SNWA returns almost entirely to Lake Mead as treated effluent, earning a credit against Nevada's allocation. SNWA recycles approximately 94% of all indoor water use (the water that goes down drains, toilets, and sinks) by treating it at the Southern Nevada Water Recycling Facility and pumping it back into Lake Mead as return flow credits. This means that every gallon a Bellagio fountain uses is effectively returned to the Colorado River system — Las Vegas's extravagant indoor water use has essentially no net impact on Lake Mead water level. The only water permanently consumed is outdoor water (evaporated from grass, pools that are not drained back, and water absorbed by plants). Las Vegas has reduced total Colorado River consumption to below year-2000 levels despite adding 600,000 residents — making it the most water-efficient large city in the American West by per-capita consumption, despite being built in the Mojave Desert and famous for its extravagance. The city that looks like the most reckless water user in the Southwest is actually running on recycled water.
Southern Nevada Water Authority ↗Origin2023
The Southern Nevada Water Authority was formed in 1991 when Las Vegas was already the fastest-growing major city in America and its population was projected to triple before the Colorado River could provide any additional water allocation. Nevada's entire allocation — 300,000 acre-feet per year — had been set in 1922 before Las Vegas had significant population. SNWA was created specifically to manage an existential constraint: how do you grow a city of 2+ million in the driest part of North America when your water allocation is fixed? The answer was a combination of recycling, conservation, and engineering investment. SNWA spent $1.4B drilling a third intake tunnel and pumping station designed to extract water from Lake Mead at 895 feet elevation — just above the power intake for Hoover Dam turbines. SNWA built this infrastructure knowing that Lake Mead might fall to the absolute minimum functional level, and they needed to be able to drink the last drop. The fact that Las Vegas exists at its current scale in the Mojave Desert on 300,000 AF/yr is entirely a product of SNWA's institutional engineering over 34 years.
Southern Nevada Water Authority ↗