Garvin Co Rwd #4, OK
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2022-2024). 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.
Garvin Co Rwd #4 at a glance
Garvin Co Rwd #4 serves about 1,340 people through 505 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 surface water, in Garvin County, Oklahoma. EPA system ID: OK3002503; phone on file: 405-238-7173. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2021 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Garvin Co Rwd #4 is 0 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2018 | 0 (not detected) |
How Garvin Co Rwd #4 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. Garvin Co Rwd #4's reported as 0 (not detected) sits at the 28th percentile in Oklahoma and the 28th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
12 other systems share Garvin County; 8 of them have a higher latest lead result than Garvin Co Rwd #4. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Pauls Valley | 6,256 | 6.25 ppb |
| Lindsay Pwa | 2,850 | 0 (not detected) |
| Wynnewood Water & Light | 2,307 | 1.18 ppb |
| Garvin Co Rwd # 6 (Wells) | 1,680 | 6.2 ppb |
| Stratford | 1,575 | 2.15 ppb |
| Garvin Co Rwd #2 | 1,570 | 0 (not detected) |
| Garvin Co Rwd #1 | 1,445 | 1.7 ppb |
| Maysville | 1,212 | 0 (not detected) |
| Elmore City Rw Corp | 1,107 | 0 (not detected) |
| Garvin Co Rwd #6 (Sw Purchase) | 862 | 2.05 ppb |
Your move
Look up your address in Garvin Co Rwd #4'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 Garvin Co Rwd #4 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Small systems behave differently: why small systems go over more often.