Fort Cobb, OK
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2021-2023). 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.
Fort Cobb at a glance
Fort Cobb serves about 667 people through 330 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 Caddo County, Oklahoma. EPA system ID: OK2000810; phone on file: 405-643-2682. They can tell you what your service line is made of and whether they pay to replace it.
Fort Cobb's lead record
Against the period ending 2020 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Fort Cobb is 0 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2017 | 0 (not detected) |
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. Fort Cobb's reported as 0 (not detected) sits at the 22nd 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
14 other systems share Caddo County; 10 of them have a higher latest lead result than Fort Cobb. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Anadarko Public Works Authority | 6,804 | 0 (not detected) |
| Caddo Co Rwd #3 | 3,900 | 2.3 ppb |
| Hinton | 2,600 | 3.1 ppb |
| Carnegie | 1,637 | 8.69 ppb |
| Apache | 1,521 | 0 (not detected) |
| Cyril | 1,168 | 1.77 ppb |
| Hydro Pwa | 1,060 | 6.4 ppb |
| Binger Pwa | 708 | 5.96 ppb |
| Cement | 530 | 0.94 ppb |
| Gracemont Pwa | 336 | 1.9 ppb |
Your move
Look up your address in Fort Cobb'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 Fort Cobb 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. The lead result guide covers how utilities pick the homes they sample. A zero today does not rule out a jump later - the rules are tightening in 2027.