Clarks Branch Water Assoc, OR
Above the federal action level
Latest 90th-percentile lead: 25 ppb (monitoring period 2025-2027). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. In the most recent monitoring period, more than 10% of the sampled homes measured above 15 ppb. Use a filter certified to NSF/ANSI 53 for lead for drinking and cooking now, and test your own tap.
About Clarks Branch Water Assoc
Clarks Branch Water Assoc serves about 140 people through 85 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws surface water, in Douglas County, Oregon. EPA system ID: OR4100548; phone on file: 541-863-7221. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
That is up 17 ppb from 8 ppb in the period ending 2026. The highest 90th-percentile result EPA holds for Clarks Branch Water Assoc is 25 ppb across 9 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2027 | 25 ppb over 15 |
| 2026 | 8 ppb |
| 2025 | 5 ppb |
| 2024 | 3 ppb |
| 2022 | 3 ppb |
| 2021 | 3 ppb |
| 2019 | 1 ppb |
| 2018 | 1 ppb |
| 2016 | 3 ppb |
How Clarks Branch Water Assoc 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. Clarks Branch Water Assoc's 25 ppb sits at the 99th percentile in Oregon and the 99th nationally (higher means more lead).
Other water systems in Douglas County
35 other systems share Douglas County; 0 of them have a higher latest lead result than Clarks Branch Water Assoc. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Roseburg, City Of | 28,800 | 0 (not detected) |
| Umpqua Basin Water Assoc | 9,499 | 3 ppb |
| Winston-Dillard Water District | 8,300 | 7 ppb |
| Sutherlin, City Of | 8,060 | 3 ppb |
| Green Area Water & Sanitary Authority | 7,000 | 0 (not detected) |
| Reedsport, City Of | 4,836 | 4 ppb |
| Myrtle Creek, City Of | 3,501 | 5 ppb |
| Tri-City Jw&Sa | 3,500 | 2 ppb |
| Canyonville, City Of | 1,662 | 2 ppb |
| Glide Water Association | 1,523 | 3 ppb |
What to do in your house
Use a filter certified to NSF/ANSI 53 for lead on the tap you drink and cook from, now, before you test. Then test your own tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Clarks Branch Water Assoc 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. Size matters more than most people expect: small vs large water systems.