Quartz Mountain Reg Water Auth, OK
Exceeded the action level in the past
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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.
Quartz Mountain Reg Water Auth at a glance
Quartz Mountain Reg Water Auth serves about 5 people through 7 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 groundwater, in Kiowa County, Oklahoma. EPA system ID: OK2003880; phone on file: 580-480-5698. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2024 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Quartz Mountain Reg Water Auth is 26.62 ppb across 10 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2021 | 8.3 ppb |
| 2020 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2019 | 26.62 ppb over 15 |
| 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. Quartz Mountain Reg Water Auth's reported as 0 (not detected) sits at the 0th percentile in Oklahoma and the 0th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
8 other systems share Kiowa County; 8 of them have a higher latest lead result than Quartz Mountain Reg Water Auth. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Hobart | 3,746 | 1.3 ppb |
| Snyder Public Works Authority | 1,509 | 5.2 ppb |
| Mountain View Pwa | 880 | 0.53 ppb |
| Mountain Park Public Works Auth | 473 | 6.61 ppb |
| Lone Wolf | 440 | 1.46 ppb |
| Roosevelt Pwa | 280 | 2.72 ppb |
| Gotebo | 272 | 5.11 ppb |
| Kiowa Rural Water District #1 | 135 | 11.3 ppb |
Next steps for Lone Wolf, OK
Test your own tap with a certified lab first-draw sample; Lone Wolf, 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 Quartz Mountain Reg Water Auth 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. More in what a past exceedance means today.