Diamondhead Homeowners Assoc, OK
Exceeded the action level in the past
Latest 90th-percentile lead: reported as 0 (not detected) (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. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
About Diamondhead Homeowners Assoc
Diamondhead Homeowners Assoc serves about 50 people through 25 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws surface water, in Osage County, Oklahoma. EPA system ID: OK3005745; phone on file: 817-629-1729. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Diamondhead Homeowners Assoc's lead record
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Diamondhead Homeowners Assoc is 93 ppb across 17 monitoring periods, 5 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2024 | 1.8 ppb |
| 2023 | 1.7 ppb |
| 2023 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2020 | 48.8 ppb over 15 |
| 2020 | 20.7 ppb over 15 |
| 2019 | 3.3 ppb |
| 2019 | 0 (not detected) |
| 2018 | 15.3 ppb over 15 |
| 2018 | 93 ppb over 15 |
| 2018 | 9.8 ppb |
| 2017 | 23.8 ppb over 15 |
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. Diamondhead Homeowners Assoc's reported as 0 (not detected) sits at the 2nd percentile in Oklahoma and the 4th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Osage County
26 other systems share Osage County; 13 of them have a higher latest lead result than Diamondhead Homeowners Assoc. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Skiatook Pwa | 8,110 | 0 (not detected) |
| Osage Co Rwd #15 | 6,647 | 0 (not detected) |
| Pawhuska | 3,800 | 3.6 ppb |
| Hominy | 2,584 | 0.4 ppb |
| Mccord Rwd #3 | 1,800 | 2 ppb |
| Fairfax | 1,555 | 2.3 ppb |
| Osage Co Rwd #21 | 1,500 | 0 (not detected) |
| Barnsdall | 1,243 | 0 (not detected) |
| Osage Co Rwd # 1 | 930 | 5.3 ppb |
| Osage Co Rws & Swd #3 (Braden) | 700 | 0 (not detected) |
Next steps for Sand Springs, OK
Test your own tap with a certified lab first-draw sample; Sand Springs, 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 Diamondhead Homeowners Assoc 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. Why an old exceedance still matters: over the limit before, under it now.