Perfect World
Hydrology Metering

DELICATE WATER ZONE · D1 — Moderate drought over a member dam

Las Vegas, Nevada

About nine of every ten gallons Las Vegas uses come from Lake Mead, drawn through the Southern Nevada Water Authority's intakes — the deepest, finished in 2015 with its low-lake pumping station, keeps drawing near elevation 875 feet, below the dam's own dead pool. The valley returns most indoor water to the lake for credit, so the city's fate is the lake's elevation, not its own use.

The reservoirs this zone drinks from

Reservoir% fullStorageElevation30-day trendDrought at the dam
Lake Mead NV–AZ26.4%6.90M af1,038.8 ft-5,116 af/dayD1 — Moderate drought

af = acre-feet; a dash means the measure is not published for that reservoir. Each name links to the reservoir's full page — gauge, record, snowpack and sources.

Upstream watch

Pools that feed this zone's members without serving the city directly.

Zone prose is curated by this desk with its sourcing inline; the numbers are the member reservoirs' own operators', on the bases named on each reservoir's page. Back to the national desk.