Moapa Valley Water District, NV
Lead detected, under the action levels
Latest 90th-percentile lead: 2 ppb (monitoring period 2023-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
Who runs the water here
Moapa Valley Water District serves about 8,500 people through 3,206 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Clark County, Nevada. EPA system ID: NV0000160; phone on file: 702-397-6893. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
That is down 3 ppb from 5 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Moapa Valley Water District is 9 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2 ppb |
| 2022 | 5 ppb |
| 2019 | 0 (not detected) |
| 2016 | 9 ppb |
Against other Nevada systems
Of the 204 Nevada systems with a lead result, the median latest reading is 1 ppb; 0 are over 15 ppb right now and 13 have gone over at some point. Moapa Valley Water District's 2 ppb sits at the 74th percentile in Nevada and the 73rd nationally (higher means more lead).
Other water systems in Clark County
44 other systems share Clark County; 11 of them have a higher latest lead result than Moapa Valley Water District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Las Vegas Valley Water District | 1,539,277 | 2.08 ppb |
| North Las Vegas Utilities | 376,515 | 1.38 ppb |
| Henderson City Of | 336,534 | 3.8 ppb |
| Virgin Valley Water District | 26,000 | 0 (not detected) |
| Nellis Air Force Base | 19,081 | 6.66 ppb |
| Boulder City | 15,000 | 2.41 ppb |
| Big Bend Water District | 9,000 | 1.89 ppb |
| Primm Valley Casino Resorts | 7,000 | 2 ppb |
| Southern Desert Correctional Ctr Ndoc | 6,200 | 1.2 ppb |
| Signature Towers | 2,356 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Overton, NV may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Moapa Valley Water District whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. The lead result guide covers how utilities pick the homes they sample. Size matters more than most people expect: small vs large water systems.