Newkirk, 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.
About Newkirk
Newkirk serves about 2,243 people through 1,150 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Kay County, Oklahoma. EPA system ID: OK2003604; phone on file: 580-362-2117. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Newkirk is 6.6 ppb across 10 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2023 | 1.5 ppb |
| 2022 | 6.6 ppb |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 0 (not detected) |
How Newkirk 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. Newkirk's reported as 0 (not detected) sits at the 34th percentile in Oklahoma and the 31st nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Kay County
11 other systems share Kay County; 3 of them have a higher latest lead result than Newkirk. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Ponca City Mun Water | 27,155 | 0 (not detected) |
| Blackwell Municipal Authority | 7,668 | 0 (not detected) |
| Tonkawa | 3,299 | 6.4 ppb |
| Kay Co Rwd #1 | 1,765 | 0 (not detected) |
| Kay Co Rwd #3 | 1,000 | 0 (not detected) |
| Kay County Rural Water District 7 | 920 | 0 (not detected) |
| Kay Co Rwd #5 (Dale Water Corp) | 765 | 0 (not detected) |
| Kaw City Water Authority | 372 | 2.6 ppb |
| Braman | 244 | 0 (not detected) |
| Kay County Rwd #2 | 50 | 4.6 ppb |
Your move
Look up your address in Newkirk'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 Newkirk whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 2620 ppb (copper action level 1,300 ppb).
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. Small systems behave differently: why small systems go over more often.