Pilot Knob Rural Wd 1 Doe Run Area, MO
Lead detected, under the action levels
Latest 90th-percentile lead: 1.4 ppb (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. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
Pilot Knob Rural Wd 1 Doe Run Area at a glance
Pilot Knob Rural Wd 1 Doe Run Area serves about 507 people through 203 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 St. Francois County, Missouri. EPA system ID: MO4021451; phone on file: 573-760-5156. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Pilot Knob Rural Wd 1 Doe Run Area's lead record
That is up 1.4 ppb from 0 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Pilot Knob Rural Wd 1 Doe Run Area is 5.48 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.4 ppb |
| 2022 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 5.48 ppb |
| 2016 | 3.95 ppb |
Where this result ranks
Of the 1,674 Missouri systems with a lead result, the median latest reading is 1.04 ppb; 2 are over 15 ppb right now and 74 have gone over at some point. Pilot Knob Rural Wd 1 Doe Run Area's 1.4 ppb sits at the 58th percentile in Missouri and the 62nd nationally (higher means more lead).
Neighbouring systems
19 other systems share St. Francois County; 10 of them have a higher latest lead result than Pilot Knob Rural Wd 1 Doe Run Area. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Farmington Pws | 18,217 | 4.82 ppb |
| Park Hills Pws | 8,587 | 8.6 ppb |
| Desloge Pws | 5,034 | 3.69 ppb |
| Bonne Terre Pws | 3,537 | 12.9 ppb |
| Bonne Terre Prison | 3,500 | 8.07 ppb |
| Farmington Correctional Center | 3,500 | 0 (not detected) |
| Terre Du Lac | 3,200 | 3.9 ppb |
| Bismarck Pws | 1,475 | 1.9 ppb |
| Leadwood Pws | 1,200 | 1.11 ppb |
| St Francois County Pwsd 2 | 850 | 1.51 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Farmington, MO may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Pilot Knob Rural Wd 1 Doe Run Area 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. The action level is dropping - the 10 ppb rule from 2027.