Warren, MN
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2024-2026). 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.
Warren at a glance
Warren serves about 1,551 people through 756 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 Marshall County, Minnesota. EPA system ID: MN1450012; phone on file: 2187455343. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
That is down 2 ppb from 2 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Warren is 2 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2023 | 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. Warren's reported as 0 (not detected) sits at the 40th percentile in Minnesota and the 29th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Marshall County
11 other systems share Marshall County; 3 of them have a higher latest lead result than Warren. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Marshall-Polk Rural Water System | 3,295 | 2 ppb |
| Stephen | 568 | 0 (not detected) |
| Argyle | 533 | 0 (not detected) |
| Alvarado | 377 | 2 ppb |
| Newfolden | 338 | 2 ppb |
| Middle River | 299 | 0 (not detected) |
| Oslo | 242 | 0 (not detected) |
| Grygla | 179 | 0 (not detected) |
| Viking | 85 | 0 (not detected) |
| Holt | 84 | 0 (not detected) |
Next steps for Warren, MN
Look up your address in Warren'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 Warren 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. A zero today does not rule out a jump later - the rules are tightening in 2027.