Tres Palacios Oaks Subdivision, TX
Lead detected, under the action levels
Latest 90th-percentile lead: 1.03 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 Tres Palacios Oaks Subdivision
Tres Palacios Oaks Subdivision serves about 774 people through 258 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Matagorda County, Texas. EPA system ID: TX1610017; phone on file: 512-990-4400. They can tell you what your service line is made of and whether they pay to replace it.
Tres Palacios Oaks Subdivision's lead record
That is up 1.03 ppb from 0 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Tres Palacios Oaks Subdivision is 1.03 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.03 ppb |
| 2022 | 0 (not detected) |
How Tres Palacios Oaks Subdivision compares
Of the 4,447 Texas systems with a lead result, the median latest reading is 0.28 ppb; 15 are over 15 ppb right now and 202 have gone over at some point. Tres Palacios Oaks Subdivision's 1.03 ppb sits at the 65th percentile in Texas and the 56th nationally (higher means more lead).
Neighbouring systems
24 other systems share Matagorda County; 7 of them have a higher latest lead result than Tres Palacios Oaks Subdivision. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Bay City | 18,061 | 3.6 ppb |
| City Of Palacios | 4,700 | 0.9 ppb |
| Caney Creek Mud Of Matagorda County | 2,764 | 2.12 ppb |
| Matagorda Wsc | 1,746 | 2.5 ppb |
| Matagorda County Wcid 6 | 1,518 | 0 (not detected) |
| Markham Mud | 1,400 | 0 (not detected) |
| Matagorda County Wcid 5 | 1,128 | 0 (not detected) |
| Selkirk Wsc | 678 | 0 (not detected) |
| Wadsworth Wsc | 570 | 0 (not detected) |
| Matagorda County Wcid 2 | 564 | 4.16 ppb |
Next steps for Austin, TX
Test your own tap with a certified lab first-draw sample; Austin, TX 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 Tres Palacios Oaks Subdivision 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. The lead result guide covers how utilities pick the homes they sample. The action level is dropping - the 10 ppb rule from 2027.