Glencoe, OK
Lead detected, under the action levels
Latest 90th-percentile lead: 3.9 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. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
Glencoe at a glance
Glencoe serves about 478 people through 274 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 Payne County, Oklahoma. EPA system ID: OK3006040; phone on file: 580-669-2271. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is up 1.9 ppb from 2 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Glencoe is 14.4 ppb across 16 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 3.9 ppb |
| 2025 | 2 ppb |
| 2024 | 1.2 ppb |
| 2023 | 14.4 ppb over 10 |
| 2023 | 1 ppb |
| 2022 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2018 | 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. Glencoe's 3.9 ppb sits at the 89th percentile in Oklahoma and the 87th nationally (higher means more lead).
Neighbouring systems
11 other systems share Payne County; 1 of them has a higher latest lead result than Glencoe. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Stillwater Utilities Authority | 53,000 | 2.6 ppb |
| Osu Water Plant | 13,000 | 0 (not detected) |
| Cushing | 8,371 | 1.3 ppb |
| Payne Co Rw Corp #3 | 3,000 | 2.9 ppb |
| Perkins | 2,572 | 3.9 ppb |
| 51 East Water | 2,500 | 3.2 ppb |
| Payne Co Rwd #3 | 1,400 | 2 ppb |
| Yale | 1,227 | 6.7 ppb |
| Payne Co Rwd #4 | 820 | 1 ppb |
| Ripley Pwa | 376 | 1.1 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Glencoe, 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 Glencoe 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. Systems that went over once often dip back under; here is what that means.