Cs Antelope Water Company, MO
Lead detected, under the action levels
Latest 90th-percentile lead: 5 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 Cs Antelope Water Company
Cs Antelope Water Company serves about 163 people through 65 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws surface water, in Yuma County, Missouri. EPA system ID: AZ0414001; phone on file: 602-698-9786. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Cs Antelope Water Company's lead record
Against the period ending 2021 (6 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Cs Antelope Water Company is 6 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 5 ppb |
| 2021 | 6 ppb |
| 2018 | 0 (not detected) |
How Cs Antelope Water Company 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. Cs Antelope Water Company's 5 ppb sits at the 91st percentile in Missouri and the 91st nationally (higher means more lead).
Other water systems in Yuma County
7 other systems share Yuma County; 0 of them have a higher latest lead result than Cs Antelope Water Company. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Cs Tierra Mesa Estates Water Company | 632 | 0 (not detected) |
| 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 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 |
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 Cs Antelope 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. The action level is dropping - the 10 ppb rule from 2027.