Santa Fe Water System (City Of), NM
Lead detected, under the action levels
Latest 90th-percentile lead: 1.1 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. 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.
Who runs the water here
Santa Fe Water System (City Of) serves about 90,810 people through 33,297 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 surface water, in Santa Fe County, New Mexico. EPA system ID: NM3505126; phone on file: 505-955-4373. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Santa Fe Water System (City Of)'s lead record
Against the period ending 2025 (1.3 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Santa Fe Water System (City Of) is 1.9 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 1.1 ppb |
| 2025 | 1.3 ppb |
| 2025 | 1.9 ppb |
| 2021 | 0.93 ppb |
| 2018 | 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. Santa Fe Water System (City Of)'s 1.1 ppb sits at the 45th percentile in New Mexico and the 58th nationally (higher means more lead).
Other water systems in Santa Fe County
42 other systems share Santa Fe County; 27 of them have a higher latest lead result than Santa Fe Water System (City Of). If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Eldorado Area Water And Sanitation Dist. | 7,082 | 1.9 ppb |
| Epcor Water New Mexico Inc., Edgewood | 6,795 | 10 ppb |
| Santa Fe County South Sector | 6,775 | 3.3 ppb |
| Santa Fe County West Sector | 3,150 | 5 ppb |
| Glorieta Camps | 2,700 | 11 ppb |
| Las Campanas Water System | 1,937 | 1.6 ppb |
| Sunlit Hills Water System | 1,018 | 2.8 ppb |
| Agua Fria Water Association | 611 | 2.6 ppb |
| El Vadito De Los Cerrillos Water Assoc | 461 | 1.3 ppb |
| Bishops Lodge | 450 | 1.8 ppb |
Next steps for Santa Fe, NM
Test your own tap with a certified lab first-draw sample; Santa Fe, 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 Santa Fe Water System (City Of) 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. Systems that went over once often dip back under; here is what that means.