Nashwauk, MN
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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
Nashwauk serves about 971 people through 556 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 Itasca County, Minnesota. EPA system ID: MN1310024; phone on file: 2188851210. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
The highest 90th-percentile result EPA holds for Nashwauk is 0 ppb across 1 monitoring period, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 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. Nashwauk's reported as 0 (not detected) sits at the 36th percentile in Minnesota and the 27th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
16 other systems share Itasca County; 4 of them have a higher latest lead result than Nashwauk. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Grand Rapids | 11,346 | 4 ppb |
| Coleraine | 1,997 | 0 (not detected) |
| Keewatin | 1,068 | 0 (not detected) |
| Cohasset Municipal Water System | 1,000 | 0 (not detected) |
| Deer River | 942 | 3 ppb |
| Bovey | 821 | 3 ppb |
| Marble | 699 | 0 (not detected) |
| Laprairie | 653 | 3 ppb |
| Taconite | 644 | 0 (not detected) |
| Bigfork | 397 | 0 (not detected) |
What to do in your house
Look up your address in Nashwauk'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 Nashwauk 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. Small systems behave differently: why small systems go over more often.