London Water Co-Op, OR
Lead detected, under the action levels
Latest 90th-percentile lead: 4.88 ppb (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. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
About London Water Co-Op
London Water Co-Op serves about 63 people through 24 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 surface water, in Lane County, Oregon. EPA system ID: OR4100239; phone on file: 541-942-9422. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is up 2.03 ppb from 2.85 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for London Water Co-Op is 4.88 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 4.88 ppb |
| 2022 | 2.85 ppb |
| 2019 | 1 ppb |
| 2016 | 4.12 ppb |
Against other Oregon systems
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. London Water Co-Op's 4.88 ppb sits at the 88th percentile in Oregon and the 90th nationally (higher means more lead).
Other water systems in Lane County
71 other systems share Lane County; 14 of them have a higher latest lead result than London Water Co-Op. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Eugene Water & Electric Board | 176,000 | 4.5 ppb |
| Springfield Utility Board | 62,100 | 2.84 ppb |
| Cottage Grove, City Of | 10,879 | 8 ppb |
| Florence, City Of | 9,561 | 3.22 ppb |
| Junction City Water Utilities | 7,000 | 1.3 ppb |
| Rainbow Water District | 6,300 | 2.1 ppb |
| Creswell, City Of | 5,585 | 3.43 ppb |
| Veneta, City Of | 5,200 | 1.92 ppb |
| Heceta Water Peoples Utility District | 4,921 | 0 (not detected) |
| Oakridge, City Of | 3,200 | 14.2 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Cottage Grove, OR may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask London Water Co-Op 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. The lead result guide covers how utilities pick the homes they sample. The action level is dropping - the 10 ppb rule from 2027.