Rainwater harvesting for single-family residential outdoor use is permitted in North Las Vegas under NRS 533.027, which allows rooftop collection without a water right. Arid climate makes yields modest.
Nevada is a prior-appropriation water rights state, but NRS 533.027 carves out an exception: a single-family residential household may collect precipitation from the roof of their home for non-potable outdoor uses like watering a garden, without needing a water right from the State Engineer. This allows residents to install rain barrels and downspout diverters. North Las Vegas has no separate ordinance against residential rainwater harvesting and the practice aligns with Southern Nevada Water Authority (SNWA) water conservation goals. Practical reality: NLV receives only about 4 inches of precipitation annually, mostly in brief summer monsoon storms, so even an optimally sized barrel system captures only a few hundred gallons per year. SNWA promotes active harvesting less than it promotes passive stormwater management (grading yards so rain infiltrates landscaping), gray water reuse, and xeriscaping. Barrels should be screened against mosquitoes (Southern Nevada Health District guidance), installed on stable footings, and not connected to any potable plumbing system. Commercial and industrial rainwater collection at larger scales still requires State Engineer consultation.
Contamination of potable plumbing: plumbing code violation, disconnection required. Mosquito breeding in open barrel: public health nuisance citation. Large-scale collection without water right: State Engineer enforcement.
North Las Vegas, NV
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