Cherokee Co. Rwd # 16 (Woodhaven), OK
Above the federal action level
Latest 90th-percentile lead: 24.3 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. In the most recent monitoring period, more than 10% of the sampled homes measured above 15 ppb. Use a filter certified to NSF/ANSI 53 for lead for drinking and cooking now, and test your own tap.
About Cherokee Co. Rwd # 16 (Woodhaven)
Cherokee Co. Rwd # 16 (Woodhaven) serves about 200 people through 162 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 surface water, in Cherokee County, Oklahoma. EPA system ID: OK1021727; phone on file: 918-207-9436. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
That is up 22.7 ppb from 1.6 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Cherokee Co. Rwd # 16 (Woodhaven) is 24.3 ppb across 14 monitoring periods, 2 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 24.3 ppb over 15 |
| 2025 | 1.6 ppb |
| 2024 | 1.4 ppb |
| 2024 | 1.4 ppb |
| 2023 | 3.08 ppb |
| 2022 | 7.32 ppb |
| 2021 | 3.35 ppb |
| 2020 | 9.1 ppb |
| 2019 | 5.1 ppb |
| 2018 | 13.7 ppb over 10 |
| 2017 | 7.49 ppb |
| 2017 | 7.1 ppb |
| 2016 | 15.2 ppb over 15 |
| 2016 | 11 ppb over 10 |
Where this result ranks
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. Cherokee Co. Rwd # 16 (Woodhaven)'s 24.3 ppb sits at the 100th percentile in Oklahoma and the 99th nationally (higher means more lead).
Nearby utilities
22 other systems share Cherokee County; 0 of them have a higher latest lead result than Cherokee Co. Rwd # 16 (Woodhaven). If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Tahlequah Pwa | 14,458 | 0 (not detected) |
| Cherokee Co. Rwd #11 | 3,395 | 1.1 ppb |
| Stickross Mountain Water Co | 3,250 | 2.2 ppb |
| Cherokee Co. Rwd #3 (Grandview) | 2,300 | 1 ppb |
| Peggs Water Company | 1,925 | 2.5 ppb |
| Cherokee Co. Rwd #13 | 1,640 | 2 ppb |
| Cherokee Co. Rwd #2 (Keys) | 1,493 | 0 (not detected) |
| Hulbert Pwa | 1,007 | 0 (not detected) |
| Cherokee Co. Rwd #1 (Ft Gibson) | 710 | 0 (not detected) |
| Cherokee Co. Rwd #7 (Welling) | 418 | 1 ppb |
Next steps for Cookson, OK
Use a filter certified to NSF/ANSI 53 for lead on the tap you drink and cook from, now, before you test. Then test your own tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Cherokee Co. Rwd # 16 (Woodhaven) 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. Why sampled homes are the worst-case ones is in the guide to reading the number. The action level is dropping - the 10 ppb rule from 2027.