Timberline Rim Water Co Inc, OR
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2024-2026). 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.
Who runs the water here
Timberline Rim Water Co Inc serves about 800 people through 407 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Clackamas County, Oregon. EPA system ID: OR4100639; phone on file: 503-734-7400. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
That is down 6.1 ppb from 6.1 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Timberline Rim Water Co Inc is 6.1 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2023 | 6.1 ppb |
| 2020 | 0.9 ppb |
| 2017 | 0.7 ppb |
How Timberline Rim Water Co Inc 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. Timberline Rim Water Co Inc's reported as 0 (not detected) sits at the 31st percentile in Oregon and the 25th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
85 other systems share Clackamas County; 65 of them have a higher latest lead result than Timberline Rim Water Co Inc. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Sunrise Water Authority | 50,003 | 3 ppb |
| Lake Oswego Municipal Water | 40,000 | 1.8 ppb |
| Oregon City | 33,940 | 1.84 ppb |
| Oak Lodge Water Services | 30,000 | 2.67 ppb |
| Clackamas River Water | 29,918 | 1.73 ppb |
| West Linn, City Of | 28,000 | 1.84 ppb |
| Wilsonville, City Of | 25,915 | 7.6 ppb |
| Milwaukie, City Of | 20,946 | 0 (not detected) |
| Clackamas River Water - Clairmont | 19,928 | 1.99 ppb |
| Canby Utility | 18,754 | 2.1 ppb |
Next steps for Molalla, OR
Look up your address in Timberline Rim Water Co Inc'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 Timberline Rim Water Co Inc 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.