Lake Crystal, MN
Lead detected, under the action levels
Latest 90th-percentile lead: 2 ppb (monitoring period 2021-2023). 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 Lake Crystal
Lake Crystal serves about 2,554 people through 945 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 groundwater, in Blue Earth County, Minnesota. EPA system ID: MN1070006; phone on file: 5077262538. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
The highest 90th-percentile result EPA holds for Lake Crystal is 2 ppb across 1 monitoring period, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 2 ppb |
Against other Minnesota systems
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. Lake Crystal's 2 ppb sits at the 73rd percentile in Minnesota and the 72nd nationally (higher means more lead).
Nearby utilities
16 other systems share Blue Earth County; 4 of them have a higher latest lead result than Lake Crystal. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Mankato | 42,803 | 2 ppb |
| Eagle Lake | 3,268 | 1 ppb |
| Mapleton | 1,756 | 2 ppb |
| Madison Lake | 1,017 | 0 (not detected) |
| Saint Clair | 846 | 6 ppb |
| Good Thunder | 583 | 2 ppb |
| Amboy | 535 | 6 ppb |
| South Bend Township | 325 | 1 ppb |
| Vernon Center | 323 | 1 ppb |
| Skyline | 289 | 0 (not detected) |
Next steps for Lake Crystal, MN
Test your own tap with a certified lab first-draw sample; Lake Crystal, 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 Lake Crystal 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Systems that went over once often dip back under; here is what that means.