Mountain City Water And Sewer, NV
Lead detected, under the action levels
Latest 90th-percentile lead: 1.9 ppb (monitoring period 2017-2025). 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.
About Mountain City Water And Sewer
Mountain City Water And Sewer serves about 30 people through 65 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Elko County, Nevada. EPA system ID: NV0000170; phone on file: 775-763-6629. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
Against the period ending 2019 (2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Mountain City Water And Sewer is 2 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.9 ppb |
| 2019 | 2 ppb |
Where this result ranks
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. Mountain City Water And Sewer's 1.9 ppb sits at the 66th percentile in Nevada and the 68th nationally (higher means more lead).
Neighbouring systems
15 other systems share Elko County; 4 of them have a higher latest lead result than Mountain City Water And Sewer. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Elko City Of | 23,000 | 3 ppb |
| Great Basin Water Co Spring Creek | 9,340 | 1.1 ppb |
| West Wendover Water System | 4,535 | 0 (not detected) |
| Great Basin Water Co Spring Creek Mhp | 3,640 | 0 (not detected) |
| Carlin Utilities | 2,500 | 4 ppb |
| Wells Municipal Water Department | 1,300 | 1.8 ppb |
| Jackpot Water System | 1,240 | 0 (not detected) |
| Ruby Dome Holdings Dba Elko Rv Park | 357 | 4.3 ppb |
| Montello Water System | 287 | 1.2 ppb |
| Valley View Rv Park | 250 | 0 (not detected) |
Next steps for Mountain City, NV
Test your own tap with a certified lab first-draw sample; Mountain City, 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 Mountain City Water And Sewer 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. Why sampled homes are the worst-case ones is in the guide to reading the number. The action level is dropping - the 10 ppb rule from 2027.