Covington, OK
Lead detected, under the action levels
Latest 90th-percentile lead: 1.2 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. 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.
About Covington
Covington serves about 553 people through 267 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 Garfield County, Oklahoma. EPA system ID: OK3002419; phone on file: 580-864-7428. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
That is down 5.5 ppb from 6.7 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Covington is 6.7 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 1.2 ppb |
| 2022 | 6.7 ppb |
| 2019 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2017 | 0 (not detected) |
| 2016 | 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. Covington's 1.2 ppb sits at the 58th percentile in Oklahoma and the 59th nationally (higher means more lead).
Neighbouring systems
20 other systems share Garfield County; 10 of them have a higher latest lead result than Covington. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Enid | 49,347 | 5.1 ppb |
| Vance Afb | 3,231 | 0 (not detected) |
| Garfield Co Rwd #5 | 1,980 | 2 ppb |
| Waukomis Pwa | 1,366 | 6.8 ppb |
| Garfield Co Rwd #6 | 1,225 | 1.1 ppb |
| Garber Municipal Authority | 725 | 1.1 ppb |
| Highpoint Mhp | 600 | 10.7 ppb |
| Lahoma Pwa | 577 | 0 (not detected) |
| Drummond | 405 | 1.7 ppb |
| Garfield Co Rwd # 4 | 334 | 0 (not detected) |
Next steps for Covington, OK
Test your own tap with a certified lab first-draw sample; Covington, 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 Covington 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.