Prior Lake, MN
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Prior Lake at a glance
Prior Lake serves about 29,300 people through 9,771 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Scott County, Minnesota. EPA system ID: MN1700007; phone on file: 9524479801. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Prior Lake is 2 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 2 ppb |
| 2016 | 2 ppb |
Where this result ranks
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. Prior Lake's reported as 0 (not detected) sits at the 51st percentile in Minnesota and the 39th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
16 other systems share Scott County; 2 of them have a higher latest lead result than Prior Lake. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Shakopee | 47,000 | 2 ppb |
| Savage | 30,285 | 0 (not detected) |
| Belle Plaine | 7,456 | 0 (not detected) |
| Jordan | 6,700 | 0 (not detected) |
| Elko New Market | 5,003 | 0 (not detected) |
| Bonnevista Terrace Mobile Home Park | 579 | 0 (not detected) |
| Territory Community | 320 | 0 (not detected) |
| Jackson Heights Mobile Home Park | 220 | 0 (not detected) |
| Mobile Manor Mobile Home Park | 197 | 0 (not detected) |
| Westridge Lake Estates | 180 | 0 (not detected) |
Next steps for Prior Lake, MN
Look up your address in Prior Lake's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Prior Lake 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Small systems behave differently: why small systems go over more often.