Cleveland Co Rw,S,G&Swmd #1, 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.
Cleveland Co Rw,S,G&Swmd #1 at a glance
Cleveland Co Rw,S,G&Swmd #1 serves about 80 people through 154 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 Cleveland County, Oklahoma. EPA system ID: OK4001499; phone on file: 405-706-0539. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is down 3.25 ppb from 3.25 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Cleveland Co Rw,S,G&Swmd #1 is 15.9 ppb across 9 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 3.25 ppb |
| 2024 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2021 | 1 ppb |
| 2021 | 15.9 ppb over 15 |
| 2020 | 3.93 ppb |
| 2020 | 1 ppb |
How Cleveland Co Rw,S,G&Swmd #1 compares
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. Cleveland Co Rw,S,G&Swmd #1's reported as 0 (not detected) sits at the 3rd percentile in Oklahoma and the 7th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Cleveland County
11 other systems share Cleveland County; 5 of them have a higher latest lead result than Cleveland Co Rw,S,G&Swmd #1. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Norman Utilities Authority | 104,868 | 0 (not detected) |
| Moore Public Works Authority | 55,083 | 0 (not detected) |
| Oklahoma University | 34,000 | 1.6 ppb |
| Noble Utilities Authority | 5,750 | 1.3 ppb |
| Joseph Harp Corr Inst | 3,000 | 0 (not detected) |
| Lexington | 2,086 | 6.5 ppb |
| Sooner Utilities - Sleepy Hollow | 438 | 6 ppb |
| Wildfire Estates Homeowners | 285 | 0 (not detected) |
| Stonetown Clearview Mhc | 170 | 0 (not detected) |
| Prairie Creek Village Mhp | 145 | 0 (not detected) |
Next steps for Lexington, OK
Test your own tap with a certified lab first-draw sample; Lexington, 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 Cleveland Co Rw,S,G&Swmd #1 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.