Red Oak Subdivision, MO
Exceeded the action level in the past
Latest 90th-percentile lead: 7.29 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. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Red Oak Subdivision at a glance
Red Oak Subdivision serves about 50 people through 22 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Camden County, Missouri. EPA system ID: MO5031416; phone on file: 314-631-1158. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Red Oak Subdivision's lead record
That is down 1.95 ppb from 9.24 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Red Oak Subdivision is 55.54 ppb across 22 monitoring periods, 16 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 7.29 ppb |
| 2022 | 9.24 ppb |
| 2021 | 8.44 ppb |
| 2021 | 9.1 ppb |
| 2020 | 55.54 ppb over 15 |
| 2020 | 55.54 ppb over 15 |
| 2019 | 14.5 ppb over 10 |
| 2019 | 14.5 ppb over 10 |
| 2019 | 37.9 ppb over 15 |
| 2019 | 37.9 ppb over 15 |
| 2018 | 20.7 ppb over 15 |
| 2018 | 20.7 ppb over 15 |
| 2018 | 21.3 ppb over 15 |
| 2018 | 21.3 ppb over 15 |
| 2017 | 42.6 ppb over 15 |
| 2017 | 42.6 ppb over 15 |
| 2017 | 24.1 ppb over 15 |
| 2017 | 24.1 ppb over 15 |
| 2016 | 20.5 ppb over 15 |
| 2016 | 20.5 ppb over 15 |
| 2016 | 32 ppb over 15 |
| 2016 | 32 ppb over 15 |
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. Red Oak Subdivision's 7.29 ppb sits at the 97th percentile in Missouri and the 95th nationally (higher means more lead).
Neighbouring systems
61 other systems share Camden County; 3 of them have a higher latest lead result than Red Oak Subdivision. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Camden County Pwsd 4 Horseshoe Bend | 7,912 | 1.71 ppb |
| Camdenton Pws | 3,960 | 1.86 ppb |
| Osage Beach East Pws | 2,611 | 2.26 ppb |
| Camden County Pwsd #4 Shawnee Bend | 2,065 | 7.62 ppb |
| Osage Beach West Pws | 1,700 | 2.92 ppb |
| Camden County Pwsd 3 | 1,650 | 4.62 ppb |
| Camden County Pwsd 2 | 1,600 | 0 (not detected) |
| Camden County Pwsd 1 | 1,300 | 1.83 ppb |
| Encounter Cove Camp & Conference Center | 1,052 | 0 (not detected) |
| Sweet Pea Pws | 980 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; St 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 Red Oak Subdivision 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. More in what a past exceedance means today.