Oak Park Heights, MN
Lead detected, under the action levels
Latest 90th-percentile lead: 2 ppb (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. 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.
Who runs the water here
Oak Park Heights serves about 4,776 people through 1,307 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Washington County, Minnesota. EPA system ID: MN1820020; phone on file: 6514394439. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Oak Park Heights's lead record
That is up 2 ppb from 0 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Oak Park Heights is 3 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 2 ppb |
| 2023 | 0 (not detected) |
| 2020 | 3 ppb |
| 2017 | 3 ppb |
How Oak Park Heights compares
Of the 966 Minnesota systems with a lead result, the median latest reading is 0 ppb; 7 are over 15 ppb right now and 48 have gone over at some point. Oak Park Heights's 2 ppb sits at the 75th percentile in Minnesota and the 72nd nationally (higher means more lead).
Neighbouring systems
28 other systems share Washington County; 3 of them have a higher latest lead result than Oak Park Heights. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Woodbury | 82,643 | 3 ppb |
| Cottage Grove | 42,760 | 3 ppb |
| Oakdale | 30,144 | 2 ppb |
| Stillwater | 19,462 | 2 ppb |
| Hugo | 12,047 | 0 (not detected) |
| Forest Lake | 11,800 | 2 ppb |
| Lake Elmo | 10,978 | 0 (not detected) |
| Mahtomedi | 8,818 | 0 (not detected) |
| Saint Paul Park | 5,427 | 1 ppb |
| Newport | 4,000 | 2 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Oak Park Heights, MN 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 Oak Park Heights 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.