Cs Tierra Mesa Estates Water Company, MO
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
About Cs Tierra Mesa Estates Water Company
Cs Tierra Mesa Estates Water Company serves about 632 people through 247 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Yuma County, Missouri. EPA system ID: AZ0414080; phone on file: 602-698-9786. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Cs Tierra Mesa Estates Water Company's lead record
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Cs Tierra Mesa Estates Water Company is 11 ppb across 11 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2020 | 11 ppb over 10 |
| 2020 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2017 | 0 (not detected) |
| 2017 | 0 (not detected) |
| 2016 | 0 (not detected) |
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. Cs Tierra Mesa Estates Water Company's reported as 0 (not detected) sits at the 25th percentile in Missouri and the 24th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Yuma County
7 other systems share Yuma County; 3 of them have a higher latest lead result than Cs Tierra Mesa Estates Water Company. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Cs Gadsden Water Company | 540 | 0 (not detected) |
| Cs El Prado Water Company | 404 | 0 (not detected) |
| Cs Mohawk Utility Company | 243 | 4.3 ppb |
| Cs Antelope Water Company | 163 | 5 ppb |
| Cs Rancheros Bonitos Water Company | 120 | 0 (not detected) |
| Cs Green Acres Water Company | 105 | 0 (not detected) |
| Cs Citrus Park Water Company | 102 | 0.37 ppb |
Next steps for St. Louis, MO
Look up your address in Cs Tierra Mesa Estates Water Company's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Cs Tierra Mesa Estates Water Company 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. Small systems behave differently: why small systems go over more often.