Chanhassen, 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.
Who runs the water here
Chanhassen serves about 24,951 people through 8,755 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 Carver County, Minnesota. EPA system ID: MN1100001; phone on file: 9522271100. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Chanhassen is 0 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 | 0 (not detected) |
| 2016 | 0 (not detected) |
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. Chanhassen'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
11 other systems share Carver County; 5 of them have a higher latest lead result than Chanhassen. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Chaska | 30,000 | 6 ppb |
| Waconia | 13,277 | 10 ppb |
| Victoria | 10,546 | 0 (not detected) |
| Carver | 6,700 | 0 (not detected) |
| Watertown | 4,550 | 4 ppb |
| Norwood-Young America | 4,000 | 3 ppb |
| Mayer | 1,900 | 0 (not detected) |
| Cologne | 1,700 | 0 (not detected) |
| Hamburg | 530 | 3 ppb |
| Crown College | 520 | 0 (not detected) |
Next steps for Chanhassen, MN
Look up your address in Chanhassen'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 Chanhassen 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.