Union City, OK
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2022-2024). 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.
Union City at a glance
Union City serves about 618 people through 262 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 surface water, in Canadian County, Oklahoma. EPA system ID: OK3000909; phone on file: 405-483-5509. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
Against the period ending 2021 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Union City is 0 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2018 | 0 (not detected) |
How Union City 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. Union City's reported as 0 (not detected) sits at the 21st percentile in Oklahoma and the 24th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
12 other systems share Canadian County; 6 of them have a higher latest lead result than Union City. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Yukon | 22,498 | 0 (not detected) |
| Mustang, City Of | 18,576 | 0.2 ppb |
| El Reno | 16,212 | 2 ppb |
| Piedmont Municipal Authority | 7,542 | 0 (not detected) |
| Canadian Co Water Authority | 1,700 | 0 (not detected) |
| Canadian Co Rwd # 4 | 907 | 0 (not detected) |
| Canadian Co Rwd # 1 | 750 | 1.8 ppb |
| Calumet Pwa | 600 | 1.2 ppb |
| Lake Forest Mhp | 500 | 1 ppb |
| Blue Quail Estates | 350 | 0 (not detected) |
Next steps for Union City, OK
Look up your address in Union City'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 Union City 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. Small systems behave differently: why small systems go over more often.