Lake Grove Water District, OR
Above the new 10 ppb level coming in 2027
Latest 90th-percentile lead: 10.8 ppb (monitoring period 2026-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Under the current 15 ppb rule this is not an exceedance, but it is above the 10 ppb action level that takes over in Nov 2027. Test your own tap; filter if your result shows lead.
Who runs the water here
Lake Grove Water District serves about 3,100 people through 1,234 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 Clackamas County, Oregon. EPA system ID: OR4100460; phone on file: 503-636-1617. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lake Grove Water District's lead record
That is up 6.56 ppb from 4.24 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Lake Grove Water District is 17.4 ppb across 14 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 10.8 ppb over 10 |
| 2025 | 4.24 ppb |
| 2024 | 3.42 ppb |
| 2023 | 3 ppb |
| 2022 | 6 ppb |
| 2021 | 10 ppb |
| 2020 | 10 ppb |
| 2019 | 7 ppb |
| 2019 | 4 ppb |
| 2018 | 8 ppb |
| 2017 | 10 ppb |
| 2017 | 7.3 ppb |
| 2016 | 17.4 ppb over 15 |
| 2016 | 13 ppb over 10 |
Where this result ranks
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. Lake Grove Water District's 10.8 ppb sits at the 98th percentile in Oregon and the 98th nationally (higher means more lead).
Other water systems in Clackamas County
85 other systems share Clackamas County; 3 of them have a higher latest lead result than Lake Grove Water District. 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 |
What to do in your house
Test your own tap with a certified lab first-draw sample; Lake Oswego, 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 Lake Grove Water District 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. See what changes at 10 ppb in 2027.