High Hill Pws, MO
Lead detected, under the action levels
Latest 90th-percentile lead: 4.6 ppb (monitoring period 2022-2024). 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.
High Hill Pws at a glance
High Hill Pws serves about 300 people through 106 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 Montgomery County, Missouri. EPA system ID: MO6010364; phone on file: 314-540-5334. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
That is up 1.71 ppb from 2.89 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for High Hill Pws is 4.6 ppb across 8 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 4.6 ppb |
| 2022 | 2.89 ppb |
| 2021 | 2.89 ppb |
| 2021 | 2.89 ppb |
| 2019 | 1.79 ppb |
| 2018 | 1.79 ppb |
| 2018 | 1.79 ppb |
| 2016 | 1.61 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. High Hill Pws's 4.6 ppb sits at the 90th percentile in Missouri and the 90th nationally (higher means more lead).
Nearby utilities
14 other systems share Montgomery County; 3 of them have a higher latest lead result than High Hill Pws. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Montgomery City Pws | 2,811 | 1.49 ppb |
| Wellsville Pws | 1,210 | 2.91 ppb |
| New Florence Pws | 769 | 0 (not detected) |
| Jonesburg Pws | 768 | 1.36 ppb |
| Heritage Oaks Subdivision | 447 | 2.66 ppb |
| Bellflower Pws | 350 | 4.88 ppb |
| Montgomery County Pwsd 1 Jonesburg | 300 | 6.67 ppb |
| Texas Landing Utilities Deerwood | 276 | 0 (not detected) |
| Texas Landing Utilities Goode City | 168 | 0.34 ppb |
| Middletown Pws | 167 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; High Hill, 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 High Hill Pws 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. Systems that went over once often dip back under; here is what that means.