Hydro Pwa, OK
Lead detected, under the action levels
Latest 90th-percentile lead: 6.4 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.
Hydro Pwa at a glance
Hydro Pwa serves about 1,060 people through 551 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 Caddo County, Oklahoma. EPA system ID: OK2000812; phone on file: 405-663-2531. They can tell you what your service line is made of and whether they pay to replace it.
Hydro Pwa's lead record
That is up 6.4 ppb from 0 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Hydro Pwa is 6.4 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 6.4 ppb |
| 2022 | 0 (not detected) |
| 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. Hydro Pwa's 6.4 ppb sits at the 95th percentile in Oklahoma and the 94th nationally (higher means more lead).
Nearby utilities
14 other systems share Caddo County; 1 of them has a higher latest lead result than Hydro Pwa. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Anadarko Public Works Authority | 6,804 | 0 (not detected) |
| Caddo Co Rwd #3 | 3,900 | 2.3 ppb |
| Hinton | 2,600 | 3.1 ppb |
| Carnegie | 1,637 | 8.69 ppb |
| Apache | 1,521 | 0 (not detected) |
| Cyril | 1,168 | 1.77 ppb |
| Binger Pwa | 708 | 5.96 ppb |
| Fort Cobb | 667 | 0 (not detected) |
| Cement | 530 | 0.94 ppb |
| Gracemont Pwa | 336 | 1.9 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Hydro, 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 Hydro Pwa 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.