Purest Water Solutions

Nevada

Water Treatment in Clark County, NV

Clark County is the Nevada anchor for Purest Water Solutions. The Las Vegas Valley runs on some of the hardest finished tap water in the United States, almost all of it sourced from Lake Mead through the Southern Nevada Water Authority. That fact alone is why scale on water heaters, glass, and pool tile is the single most common complaint from Las Vegas and Henderson homeowners.

Call (949) 873-1129Schedule a free water test

About the water in Clark County

Almost all Clark County tap water comes from Lake Mead via the Colorado River, drawn and treated by the Southern Nevada Water Authority (SNWA) at the Alfred Merritt Smith and River Mountains water treatment facilities. LVVWD and the City of Henderson both distribute SNWA-treated water inside their service footprints. (water source reference)

Lake Mead water is extremely hard. The LVVWD 2025 CCR reports 291 ppm as calcium carbonate, which the district publishes as 17 grains per gallon. USGS classifies water above 180 mg/L as calcium carbonate as very hard; the Las Vegas Valley sits well above that threshold, and every install we run in Clark County confirms it with the in-home test. (USGS hardness map)

Utilities serving Clark County

Common local concerns

  • Very hard finished water at 17 GPG per LVVWD 2025 CCR (291 ppm CaCO3) from Lake Mead
  • Nitrate up to 6.3 ppm at one LVVWD entry point (MCL 10 ppm — 63% of MCL)
  • Arsenic entry-point range 1.4 to 2.0 ppb, distribution samples up to 4.0 ppb (MCL 10 ppb)
  • Elevated total dissolved solids from the Colorado River supply
  • Chlorine disinfection residual

Regulators and source data

Cities we serve in Clark County

Each city below has its own service pages with water-quality detail specific to the local utility.

Las Vegas

Served by Las Vegas Valley Water District / SNWA (16 to 18 gpg)

Henderson

Served by City of Henderson Utility Services (16 to 18 gpg)

Nearby counties we serve

Other ways to start

Author: Bruce Williams, Purest Water Solutions. County FIPS 32003.