Chisago City, MN
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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.
About Chisago City
Chisago City serves about 3,745 people through 1,525 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 Chisago County, Minnesota. EPA system ID: MN1130003; phone on file: 6512574162. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Chisago City's lead record
Against the period ending 2021 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Chisago City is 0 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2018 | 0 (not detected) |
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. Chisago City's reported as 0 (not detected) sits at the 46th percentile in Minnesota and the 34th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Chisago County
17 other systems share Chisago County; 7 of them have a higher latest lead result than Chisago City. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| North Branch | 6,863 | 3 ppb |
| Lindstrom | 4,938 | 2 ppb |
| Wyoming | 3,990 | 2 ppb |
| Rush City | 3,339 | 3 ppb |
| Stacy | 1,593 | 0 (not detected) |
| Shafer | 1,165 | 0 (not detected) |
| Taylors Falls | 1,067 | 4 ppb |
| Harris | 400 | 0 (not detected) |
| Preserve At Birch Lake | 388 | 0 (not detected) |
| Center City | 305 | 1 ppb |
Next steps for Chisago City, MN
Look up your address in Chisago City'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 Chisago City 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. Small systems behave differently: why small systems go over more often.