Gallup Water System, NM
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2021-2023). 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.
Who runs the water here
Gallup Water System serves about 20,880 people through 6,000 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Mckinley County, New Mexico. EPA system ID: NM3508317; phone on file: 505-863-1209. 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 2020 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Gallup Water System is 1 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2020 | 1 ppb |
| 2018 | 1 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. Gallup Water System's reported as 0 (not detected) sits at the 24th percentile in New Mexico and the 39th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Mckinley County
14 other systems share Mckinley County; 10 of them have a higher latest lead result than Gallup Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Gamerco Water & Sanitation | 1,744 | 8.3 ppb |
| Thoreau Water & Sanitation District | 1,173 | 1.2 ppb |
| Ramah Water & Sanitation District | 517 | 1.5 ppb |
| Yah Ta Hey W & Sd | 435 | 1.4 ppb |
| Whispering Cedars Water Association | 425 | 2 ppb |
| White Cliffs Mdwua | 323 | 2 ppb |
| Top Of The World Water Association Corp | 177 | 0 (not detected) |
| Bluewater Lake Mdwca | 135 | 5.3 ppb |
| Coal Basin Dwua | 116 | 10 ppb |
| D & S Trailer Ranch | 109 | 0 (not detected) |
Next steps for Gallup, NM
Look up your address in Gallup 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 Gallup 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. Why sampled homes are the worst-case ones is in the guide to reading the number. A zero today does not rule out a jump later - the rules are tightening in 2027.