Oklahoma State Reformatory, OK
Lead reported as not detected
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 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
About Oklahoma State Reformatory
Oklahoma State Reformatory serves about 999 people through 33 service connections, which makes it a small system under EPA's size classes. It is owned by the state and draws groundwater, in Greer County, Oklahoma. EPA system ID: OK2002803; phone on file: 405-425-2500. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Oklahoma State Reformatory is 0 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2018 | 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. Oklahoma State Reformatory's reported as 0 (not detected) sits at the 25th percentile in Oklahoma and the 27th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
6 other systems share Greer County; 5 of them have a higher latest lead result than Oklahoma State Reformatory. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Mangum Pws | 2,924 | 1.25 ppb |
| Granite Pws | 1,425 | 1.19 ppb |
| Harmon Electric | 188 | 1 ppb |
| Reed Water Corp | 175 | 2.27 ppb |
| Willow | 114 | 0 (not detected) |
| Thirsty Water Corp | 81 | 0.9 ppb |
Your move
Look up your address in Oklahoma State Reformatory's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Oklahoma State Reformatory 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Small systems behave differently: why small systems go over more often.