Highpoint Mhp, OK
Above the new 10 ppb level coming in 2027
Latest 90th-percentile lead: 10.7 ppb (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. Under the current 15 ppb rule this is not an exceedance, but it is above the 10 ppb action level that takes over in Nov 2027. Test your own tap; filter if your result shows lead.
Who runs the water here
Highpoint Mhp serves about 600 people through 400 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Garfield County, Oklahoma. EPA system ID: OK2002401; phone on file: 580-234-1726. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is up 5 ppb from 5.7 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Highpoint Mhp is 10.7 ppb across 3 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 10.7 ppb over 10 |
| 2020 | 5.7 ppb |
| 2017 | 8.6 ppb |
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. Highpoint Mhp's 10.7 ppb sits at the 98th percentile in Oklahoma and the 97th nationally (higher means more lead).
Neighbouring systems
20 other systems share Garfield County; 1 of them has a higher latest lead result than Highpoint Mhp. 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 |
| Lahoma Pwa | 577 | 0 (not detected) |
| Covington | 553 | 1.2 ppb |
| Drummond | 405 | 1.7 ppb |
| Garfield Co Rwd # 4 | 334 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Enid, 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 Highpoint 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. What a 90th-percentile result does and does not tell you: how to read a lead result. This system is in the band the 2027 10 ppb rule changes.