South Holman Mdwca, NM
Lead detected, under the action levels
Latest 90th-percentile lead: 5.6 ppb (monitoring period 2020-2022). 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.
South Holman Mdwca at a glance
South Holman Mdwca serves about 35 people through 38 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 Mora County, New Mexico. EPA system ID: NM3516518; phone on file: 505-699-3801. Call that number and ask whether your address has a lead, galvanized or unknown service line.
South Holman Mdwca's lead record
Against the period ending 2021 (5.6 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for South Holman Mdwca is 5.6 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2022 | 5.6 ppb |
| 2021 | 5.6 ppb |
| 2020 | 5.6 ppb |
| 2019 | 2.6 ppb |
| 2018 | 2.6 ppb |
How South Holman 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. South Holman Mdwca's 5.6 ppb sits at the 89th percentile in New Mexico and the 92nd nationally (higher means more lead).
Nearby utilities
14 other systems share Mora County; 1 of them has a higher latest lead result than South Holman Mdwca. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Mora Mdwca & Swa | 1,100 | 6 ppb |
| Wagon Mound Water System | 402 | - |
| Agua Pura Mdwca | 357 | 2.4 ppb |
| Upper Holman Mdwca | 325 | 2 ppb |
| Cleveland Mdwca | 270 | 3 ppb |
| San Antonio De Cleveland Mdwca | 269 | 1.9 ppb |
| Agua Negra Mdwca | 242 | 0 (not detected) |
| Buena Vista Mdwc & Swa | 225 | 0.4 ppb |
| Rainsville Water & Sanitation District | 177 | 1.3 ppb |
| Watrous Mdwca | 135 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Holman, 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 South Holman 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. The action level is dropping - the 10 ppb rule from 2027.