Mountainair Water System, NM
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2026-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
About Mountainair Water System
Mountainair Water System serves about 1,505 people through 570 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Torrance County, New Mexico. EPA system ID: NM3524330; phone on file: 505-464-0409. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Mountainair Water System is 1.8 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2017 | 1.8 ppb |
| 2016 | 1.8 ppb |
Against other New Mexico systems
Of the 504 New Mexico systems with a lead result, the median latest reading is 1.4 ppb; 14 are over 15 ppb right now and 46 have gone over at some point. Mountainair Water System's reported as 0 (not detected) sits at the 20th percentile in New Mexico and the 29th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Torrance County
17 other systems share Torrance County; 14 of them have a higher latest lead result than Mountainair Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Moriarty Water System | 2,825 | 8.8 ppb |
| Estancia Water System | 1,355 | 3 ppb |
| Indian Hills Water System | 715 | 1.3 ppb |
| Clines Corners Water System | 450 | 19 ppb |
| Echo Valley Water Company | 411 | 0 (not detected) |
| Emwt Rwa Sunset Acres | 317 | 3.6 ppb |
| Willard Village Of | 279 | 2 ppb |
| Torreon Mdwca | 250 | 3 ppb |
| Melody Ranch Water Co | 209 | 4.8 ppb |
| Emwt Rwa Homestead | 208 | 4.5 ppb |
Your move
Look up your address in Mountainair Water System's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Mountainair Water System 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. A zero today does not rule out a jump later - the rules are tightening in 2027.