Vernonia, City Of, OR
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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 Vernonia, City Of
Vernonia, City Of serves about 2,100 people through 975 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 Columbia County, Oregon. EPA system ID: OR4100922; phone on file: 503-429-6921. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
That is down 3 ppb from 3 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Vernonia, City Of is 3 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 3 ppb |
| 2019 | 0 (not detected) |
| 2016 | 0 (not detected) |
How Vernonia, City Of compares
Of the 909 Oregon systems with a lead result, the median latest reading is 1 ppb; 15 are over 15 ppb right now and 71 have gone over at some point. Vernonia, City Of's reported as 0 (not detected) sits at the 34th percentile in Oregon and the 31st nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
37 other systems share Columbia County; 14 of them have a higher latest lead result than Vernonia, City Of. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| St Helens, City Of | 13,410 | 1.03 ppb |
| Scappoose, City Of | 8,710 | 0 (not detected) |
| Mcnulty Water Pud | 2,500 | 0 (not detected) |
| Clatskanie, City Of | 2,096 | 1.27 ppb |
| Warren Water Association | 2,050 | 0 (not detected) |
| Columbia City Mun Waterworks | 1,995 | 0 (not detected) |
| City Of Rainier | 1,932 | 0 (not detected) |
| Western Hills Mh Estates | 375 | 0 (not detected) |
| Fishhawk Lake Reserve And Community | 350 | 6.25 ppb |
| Quincy Water Association | 300 | 0 (not detected) |
Next steps for Vernonia, OR
Look up your address in Vernonia, City Of'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 Vernonia, City Of 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.