Lost Horizon Coop Association, NM
Exceeded the action level in the past
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2025-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
About Lost Horizon Coop Association
Lost Horizon Coop Association serves about 95 people through 31 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws surface water, in Bernalillo County, New Mexico. EPA system ID: NM3511101; phone on file: 505-440-3813. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
Against the period ending 2024 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Lost Horizon Coop Association is 57 ppb across 7 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2024 | 1 ppb |
| 2023 | 3 ppb |
| 2021 | 1.3 ppb |
| 2019 | 57 ppb over 15 |
| 2017 | 2.8 ppb |
Where this result ranks
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. Lost Horizon Coop Association's reported as 0 (not detected) sits at the 6th percentile in New Mexico and the 9th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
41 other systems share Bernalillo County; 27 of them have a higher latest lead result than Lost Horizon Coop Association. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Albuquerque Water System | 560,326 | 0 (not detected) |
| University Of New Mexico | 35,000 | 1.1 ppb |
| Kirtland Air Force Base | 22,500 | 2.3 ppb |
| Sandia Peak Utility | 6,079 | 2.8 ppb |
| Tierra West Estates Mhp | 1,447 | 1 ppb |
| Sandia Knolls Water System | 1,098 | 1.1 ppb |
| Tranquillo Pines Mdwca | 814 | 3.3 ppb |
| Coronado Village Country Club | 802 | 2.1 ppb |
| Tijeras (Village Of) | 541 | 1 ppb |
| South Hills Water Company | 506 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Albuquerque, NM 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 Lost Horizon Coop Association 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. More in what a past exceedance means today.