Ste Genevieve County Pwsd 1 Sc, MO
Lead detected, under the action levels
Latest 90th-percentile lead: 1.5 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.
Ste Genevieve County Pwsd 1 Sc at a glance
Ste Genevieve County Pwsd 1 Sc serves about 3,718 people through 1,472 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Ste. Genevieve County, Missouri. EPA system ID: MO4024543; phone on file: 573-883-5670. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
Against the period ending 2022 (2.02 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Ste Genevieve County Pwsd 1 Sc is 2.4 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.5 ppb |
| 2022 | 2.02 ppb |
| 2022 | 2.02 ppb |
| 2019 | 2.4 ppb |
| 2019 | 2.4 ppb |
| 2016 | 2.01 ppb |
| 2016 | 2.01 ppb |
Against other Missouri systems
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. Ste Genevieve County Pwsd 1 Sc's 1.5 ppb sits at the 61st percentile in Missouri and the 64th nationally (higher means more lead).
Other water systems in Ste. Genevieve County
7 other systems share Ste. Genevieve County; 1 of them has a higher latest lead result than Ste Genevieve County Pwsd 1 Sc. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Ste Genevieve Pws | 4,999 | 0 (not detected) |
| Ste Genevieve County Pwsd 1 North | 1,287 | 1.11 ppb |
| Lake Forest Estates | 811 | 1.35 ppb |
| Grayhawk Water | 750 | 1.41 ppb |
| Bloomsdale Pws | 639 | 1.18 ppb |
| Lake Seven Falls Assn Inc | 475 | 1.4 ppb |
| St Mary Pws | 350 | 3.25 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Ste Genevieve, 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 Ste Genevieve County Pwsd 1 Sc 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. Systems that went over once often dip back under; here is what that means.