Henry County Pwsd 1, MO
Lead detected, under the action levels
Latest 90th-percentile lead: 2.44 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.
Henry County Pwsd 1 at a glance
Henry County Pwsd 1 serves about 258 people through 105 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 surface water, in Henry County, Missouri. EPA system ID: MO1021071. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
Against the period ending 2022 (1.92 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Henry County Pwsd 1 is 2.44 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2.44 ppb |
| 2022 | 1.92 ppb |
| 2022 | 1.92 ppb |
| 2019 | 1.6 ppb |
| 2019 | 1.6 ppb |
| 2016 | 1.95 ppb |
| 2016 | 1.95 ppb |
How Henry County Pwsd 1 compares
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. Henry County Pwsd 1's 2.44 ppb sits at the 77th percentile in Missouri and the 77th nationally (higher means more lead).
Other water systems in Henry County
10 other systems share Henry County; 1 of them has a higher latest lead result than Henry County Pwsd 1. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Henry County Water Company | 11,373 | 3.37 ppb |
| Henry County Pwsd 3 | 2,993 | 0 (not detected) |
| Windsor Pws | 2,900 | 0 (not detected) |
| Henry County Pwsd 4 | 1,140 | 1.23 ppb |
| Urich Pws | 505 | 0 (not detected) |
| Deepwater Pws | 433 | 1.49 ppb |
| Montrose Pws | 384 | 0 (not detected) |
| Calhoun Pws | 324 | 0 (not detected) |
| Blairstown Pws | 123 | 0.72 ppb |
| Oakwood Water Assn | 28 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Clinton, 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 Henry County Pwsd 1 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. Systems that went over once often dip back under; here is what that means.