Westport Utility Authority Trust, OK
Exceeded the action level in the past
Latest 90th-percentile lead: 1.2 ppb (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 result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Westport Utility Authority Trust at a glance
Westport Utility Authority Trust serves about 289 people through 90 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 Pawnee County, Oklahoma. EPA system ID: OK2005910; phone on file: 918-698-0853. They can tell you what your service line is made of and whether they pay to replace it.
Westport Utility Authority Trust's lead record
That is down 6 ppb from 7.2 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Westport Utility Authority Trust is 44.6 ppb across 12 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.2 ppb |
| 2025 | 7.2 ppb |
| 2022 | 2.9 ppb |
| 2021 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2018 | 44.6 ppb over 15 |
Against other Oklahoma systems
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. Westport Utility Authority Trust's 1.2 ppb sits at the 58th percentile in Oklahoma and the 59th nationally (higher means more lead).
Nearby utilities
12 other systems share Pawnee County; 6 of them have a higher latest lead result than Westport Utility Authority Trust. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Cleveland Municipal Authority | 3,262 | 1.7 ppb |
| Pawnee Co Rwd #1 | 3,200 | 2.9 ppb |
| Pawnee | 2,230 | 0 (not detected) |
| Pawnee Co Rwd #2 | 1,775 | 1.1 ppb |
| Pawnee Co Rwd #3 | 685 | 1.3 ppb |
| Pawnee Co Rwd #4 | 415 | 0.9 ppb |
| Jennings | 400 | 0 (not detected) |
| Ralston | 335 | 3.9 ppb |
| Pawnee County Rwd #5 | 225 | 2.8 ppb |
| Hallett Public Works Authority | 168 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Cleveland, OK 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 Westport Utility Authority Trust 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. Why an old exceedance still matters: over the limit before, under it now.