Seboyeta Water System, NM
Lead detected, under the action levels
Latest 90th-percentile lead: 2 ppb (monitoring period 2024-2026). 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.
Seboyeta Water System at a glance
Seboyeta Water System serves about 209 people through 72 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 Cibola County, New Mexico. EPA system ID: NM3525933; phone on file: 505-218-0386. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
The highest 90th-percentile result EPA holds for Seboyeta Water System is 2 ppb across 1 monitoring period, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 2 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. Seboyeta Water System's 2 ppb sits at the 59th percentile in New Mexico and the 70th nationally (higher means more lead).
Other water systems in Cibola County
8 other systems share Cibola County; 2 of them have a higher latest lead result than Seboyeta Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Grants Domestic Water System | 10,523 | 4 ppb |
| Milan Community Water System | 2,560 | 3 ppb |
| San Rafael Water & Sanitation District | 1,060 | 2 ppb |
| Bluewater Water And Sanitation District | 492 | 1.3 ppb |
| Bluewater Acres Wua | 331 | 2 ppb |
| Bibo Mutual Domestic Water Assoc | 241 | 0 (not detected) |
| San Mateo Mdwca | 182 | 1.7 ppb |
| Moquino Water System | 55 | 2 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Seboyeta, 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 Seboyeta 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Size matters more than most people expect: small vs large water systems.