Texoma Hills, OK
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2025-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Texoma Hills at a glance
Texoma Hills serves about 212 people through 112 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws surface water, in Marshall County, Oklahoma. EPA system ID: OK2004538; phone on file: 580-564-7069. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
That is down 2 ppb from 2 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Texoma Hills is 5 ppb across 8 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2024 | 2 ppb |
| 2023 | 0 (not detected) |
| 2022 | 5 ppb |
| 2021 | 0.54 ppb |
| 2020 | 3.65 ppb |
| 2019 | 0.69 ppb |
| 2016 | 1.88 ppb |
How Texoma Hills compares
Of the 870 Oklahoma systems with a lead result, the median latest reading is 0.81 ppb; 6 are over 15 ppb right now and 66 have gone over at some point. Texoma Hills's reported as 0 (not detected) sits at the 9th percentile in Oklahoma and the 16th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
7 other systems share Marshall County; 6 of them have a higher latest lead result than Texoma Hills. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Marshall County Rural Water District #2 | 17,587 | 1.1 ppb |
| Madill | 3,410 | 1.7 ppb |
| Kingston Pwa | 1,600 | 0.5 ppb |
| Oakland Pwa | 1,050 | 1.54 ppb |
| Oakview Water Corp | 925 | 2.4 ppb |
| Cardinal Hill Subdivision | 475 | 0.41 ppb |
| Marshall County Rwd #1 | 468 | - |
What to do in your house
Look up your address in Texoma Hills's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Texoma Hills 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. Small systems behave differently: why small systems go over more often.