Galisteo Mdwca, NM
Lead detected, under the action levels
Latest 90th-percentile lead: 2.3 ppb (monitoring period 2023-2025). 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
Galisteo Mdwca serves about 215 people through 73 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 Santa Fe County, New Mexico. EPA system ID: NM3504426; phone on file: 505-412-1030. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Galisteo Mdwca's lead record
Against the period ending 2019 (1.8 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Galisteo Mdwca is 3.6 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2.3 ppb |
| 2019 | 1.8 ppb |
| 2018 | 3.6 ppb |
How Galisteo Mdwca compares
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. Galisteo Mdwca's 2.3 ppb sits at the 68th percentile in New Mexico and the 76th nationally (higher means more lead).
Neighbouring systems
42 other systems share Santa Fe County; 18 of them have a higher latest lead result than Galisteo Mdwca. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Santa Fe Water System (City Of) | 90,810 | 1.1 ppb |
| 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 |
Next steps for Galisteo, NM
Test your own tap with a certified lab first-draw sample; Galisteo, 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 Galisteo Mdwca 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. Size matters more than most people expect: small vs large water systems.