Chisholm Creek Housing Addition, OK
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2024-2024). 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.
About Chisholm Creek Housing Addition
Chisholm Creek Housing Addition serves about 75 people through 33 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 Garfield County, Oklahoma. EPA system ID: OK3002416; phone on file: 580-234-5941. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
Against the period ending 2023 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Chisholm Creek Housing Addition is 5.3 ppb across 10 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2017 | 3.24 ppb |
| 2016 | 0 (not detected) |
| 2016 | 5.3 ppb |
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. Chisholm Creek Housing Addition'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 Garfield County
20 other systems share Garfield County; 14 of them have a higher latest lead result than Chisholm Creek Housing Addition. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Enid | 49,347 | 5.1 ppb |
| Vance Afb | 3,231 | 0 (not detected) |
| Garfield Co Rwd #5 | 1,980 | 2 ppb |
| Waukomis Pwa | 1,366 | 6.8 ppb |
| Garfield Co Rwd #6 | 1,225 | 1.1 ppb |
| Garber Municipal Authority | 725 | 1.1 ppb |
| Highpoint Mhp | 600 | 10.7 ppb |
| Lahoma Pwa | 577 | 0 (not detected) |
| Covington | 553 | 1.2 ppb |
| Drummond | 405 | 1.7 ppb |
What to do in your house
Look up your address in Chisholm Creek Housing Addition'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 Chisholm Creek Housing Addition 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.