Chupadero Mdwca, NM
Lead detected, under the action levels
Latest 90th-percentile lead: 2 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.
About Chupadero Mdwca
Chupadero Mdwca serves about 131 people through 54 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: NM3566026; phone on file: 505-820-0144. They can tell you what your service line is made of and whether they pay to replace it.
Chupadero Mdwca's lead record
That is down 2.9 ppb from 4.9 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Chupadero Mdwca is 9.1 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2 ppb |
| 2022 | 4.9 ppb |
| 2019 | 1.7 ppb |
| 2018 | 0.9 ppb |
| 2017 | 5.4 ppb |
| 2016 | 9.1 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. Chupadero Mdwca's 2 ppb sits at the 58th percentile in New Mexico and the 70th nationally (higher means more lead).
Nearby utilities
42 other systems share Santa Fe County; 20 of them have a higher latest lead result than Chupadero 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 Tesuque, NM
Test your own tap with a certified lab first-draw sample; Tesuque, 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 Chupadero 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. 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.