Oak Hill Estates, MO
Lead detected, under the action levels
Latest 90th-percentile lead: 0.26 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.
About Oak Hill Estates
Oak Hill Estates serves about 402 people through 134 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Harris County, Missouri. EPA system ID: TX1013045; phone on file: 254-355-9124. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Oak Hill Estates's lead record
The highest 90th-percentile result EPA holds for Oak Hill Estates is 0.26 ppb across 1 monitoring period, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0.26 ppb |
How Oak Hill Estates 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. Oak Hill Estates's 0.26 ppb sits at the 40th percentile in Missouri and the 41st nationally (higher means more lead).
Nearby utilities
3 other systems share Harris County; 3 of them have a higher latest lead result than Oak Hill Estates. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Fountainview Subdivision | 2,703 | 0.6 ppb |
| Tall Pines Utility | 213 | 2 ppb |
| Amberwood Subdivision | 150 | 0.56 ppb |
Next steps for Saint Louis, MO
Test your own tap with a certified lab first-draw sample; Saint Louis, 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 Oak Hill Estates 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.