La Asociacion De Agua De Los Brazos, NM
Exceeded the action level in the past
Latest 90th-percentile lead: 0.4 ppb (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 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.
Who runs the water here
La Asociacion De Agua De Los Brazos serves about 64 people through 25 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 Rio Arriba County, New Mexico. EPA system ID: NM3566221; phone on file: 505-927-9209. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
La Asociacion De Agua De Los Brazos's lead record
That is down 1.3 ppb from 1.7 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for La Asociacion De Agua De Los Brazos is 64 ppb across 9 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0.4 ppb |
| 2025 | 1.7 ppb |
| 2022 | 0.29 ppb |
| 2018 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2017 | 0.28 ppb |
| 2017 | 0.29 ppb |
| 2016 | 1.35 ppb |
| 2016 | 64 ppb over 15 |
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. La Asociacion De Agua De Los Brazos's 0.4 ppb sits at the 26th percentile in New Mexico and the 42nd nationally (higher means more lead).
Other water systems in Rio Arriba County
40 other systems share Rio Arriba County; 27 of them have a higher latest lead result than La Asociacion De Agua De Los Brazos. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Espanola Water System | 12,012 | 0 (not detected) |
| Chama Water System | 1,573 | 9.1 ppb |
| Agua Sana Wua | 1,514 | 0 (not detected) |
| El Rito Regional Water & Waste Water Asn | 1,200 | 4.1 ppb |
| Greater Chimayo Mdwca | 1,050 | 2.3 ppb |
| Alcalde Mdwca | 927 | 0.56 ppb |
| Chamita Mdwca | 902 | 0 (not detected) |
| Truchas Mdwca | 629 | 3.1 ppb |
| Velarde Mdwca | 543 | 4.1 ppb |
| Dixon Mdwca | 500 | 1.5 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Los Ojos, 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 La Asociacion De Agua De Los Brazos whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1700 ppb (copper action level 1,300 ppb).
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. Why an old exceedance still matters: over the limit before, under it now.