Interlachen Water Pud, OR
Lead detected, under the action levels
Latest 90th-percentile lead: 1.6 ppb (monitoring period 2022-2024). 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.
Interlachen Water Pud at a glance
Interlachen Water Pud serves about 360 people through 155 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 groundwater, in Multnomah County, Oregon. EPA system ID: OR4100902; phone on file: 503-318-4363. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
Against the period ending 2021 (0.8 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Interlachen Water Pud is 1.8 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 1.6 ppb |
| 2021 | 0.8 ppb |
| 2018 | 1.8 ppb |
How Interlachen Water Pud 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. Interlachen Water Pud's 1.6 ppb sits at the 62nd percentile in Oregon and the 65th nationally (higher means more lead).
Nearby utilities
24 other systems share Multnomah County; 14 of them have a higher latest lead result than Interlachen Water Pud. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Portland Water Bureau | 666,200 | 5.01 ppb |
| Gresham, City Of | 73,932 | 3.81 ppb |
| Rockwood Pud | 65,443 | 3.4 ppb |
| Troutdale, City Of | 16,185 | 1.2 ppb |
| Fairview, City Of | 9,963 | 6.89 ppb |
| Wood Village, City Of | 4,388 | 1.4 ppb |
| Corbett Water District | 2,954 | 6.2 ppb |
| Pleasant Home Water District | 1,510 | 5.01 ppb |
| Palatine Hill Water District | 1,500 | 5.01 ppb |
| Lusted Water District | 1,200 | 4 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Fairview, 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 Interlachen Water Pud 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. Systems that went over once often dip back under; here is what that means.