Wykoff, MN
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2024-2024). 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.
Who runs the water here
Wykoff serves about 444 people through 244 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Fillmore County, Minnesota. EPA system ID: MN1230013; phone on file: 5074211272. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Wykoff's lead record
The highest 90th-percentile result EPA holds for Wykoff is 0 ppb across 1 monitoring period, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 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. Wykoff's reported as 0 (not detected) sits at the 27th percentile in Minnesota and the 21st nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
13 other systems share Fillmore County; 10 of them have a higher latest lead result than Wykoff. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Chatfield | 3,005 | 1 ppb |
| Spring Valley | 2,580 | 0 (not detected) |
| Rushford | 1,860 | 2 ppb |
| Preston | 1,322 | 2 ppb |
| Harmony | 1,042 | 5 ppb |
| Lanesboro | 727 | 0 (not detected) |
| Mabel | 715 | 1 ppb |
| Fountain | 407 | 2 ppb |
| Canton | 316 | 6 ppb |
| Rushford Village | 265 | 1 ppb |
What to do in your house
Look up your address in Wykoff'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 Wykoff 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.