Oak Terrace Estates Water System, TX
Lead detected, under the action levels
Latest 90th-percentile lead: 2 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.
About Oak Terrace Estates Water System
Oak Terrace Estates Water System serves about 531 people through 183 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Polk County, Texas. EPA system ID: TX1870055; phone on file: 737-376-2534. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
Against the period ending 2024 (1.2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Oak Terrace Estates Water System is 5 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 2 ppb |
| 2024 | 1.2 ppb |
| 2021 | 1.96 ppb |
| 2020 | 2.65 ppb |
| 2017 | 0 (not detected) |
| 2017 | 1 ppb |
| 2016 | 5 ppb |
Where this result ranks
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. Oak Terrace Estates Water System's 2 ppb sits at the 82nd percentile in Texas and the 71st nationally (higher means more lead).
Nearby utilities
55 other systems share Polk County; 6 of them have a higher latest lead result than Oak Terrace Estates Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Livingston | 15,199 | 1.56 ppb |
| Lake Livingston Pineshadows East | 5,675 | 1.84 ppb |
| Onalaska Wsc | 5,289 | 0 (not detected) |
| Lake Livingston Oakridge North | 3,284 | 0.59 ppb |
| Tempe Wsc 1 | 2,725 | 0 (not detected) |
| Soda Wsc | 2,237 | 0.92 ppb |
| Providence Wsc | 2,051 | 0 (not detected) |
| Cedar Point | 1,827 | 4 ppb |
| Leggett Wsc | 1,800 | 0 (not detected) |
| City Of Corrigan | 1,722 | 0.84 ppb |
What to do in your house
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 Oak Terrace Estates Water System 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.