Willow Creek Mhp, OK
Lead detected, under the action levels
Latest 90th-percentile lead: 0.5 ppb (monitoring period 2023-2025). 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.
About Willow Creek Mhp
Willow Creek Mhp serves about 99 people through 50 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Oklahoma County, Oklahoma. EPA system ID: OK2005535; phone on file: 405-226-2294. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2019 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Willow Creek Mhp is 0.5 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0.5 ppb |
| 2019 | 0 (not detected) |
| 2016 | 0 (not detected) |
Where this result ranks
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. Willow Creek Mhp's 0.5 ppb sits at the 45th percentile in Oklahoma and the 43rd nationally (higher means more lead).
Nearby utilities
35 other systems share Oklahoma County; 15 of them have a higher latest lead result than Willow Creek Mhp. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Oklahoma City | 644,000 | 0 (not detected) |
| Edmond Pwa | 79,408 | 0 (not detected) |
| Midwest City | 55,935 | 1.2 ppb |
| Tinker Air Force Base | 24,645 | 0 (not detected) |
| Del City | 22,128 | 1.6 ppb |
| Bethany | 20,307 | 0 (not detected) |
| Deer Creek Rural Water Corp | 5,500 | 0 (not detected) |
| Harrah | 4,190 | 1.1 ppb |
| Nichols Hills | 4,020 | 0 (not detected) |
| Choctaw Ua | 3,926 | 11.4 ppb |
Next steps for Harrah, OK
Test your own tap with a certified lab first-draw sample; Harrah, 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 Willow Creek Mhp 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. Systems that went over once often dip back under; here is what that means.