El Pinon Estates Water System, MO
Lead detected, under the action levels
Latest 90th-percentile lead: 0.77 ppb (monitoring period 2024-2026). 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 El Pinon Estates Water System
El Pinon Estates Water System serves about 156 people through 56 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in San Augustine County, Missouri. EPA system ID: TX2030013; phone on file: 254-355-9124. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
That is down 1.06 ppb from 1.83 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for El Pinon Estates Water System is 1.83 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0.77 ppb |
| 2023 | 1.83 ppb |
| 2023 | 1.73 ppb |
| 2022 | 1.24 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. El Pinon Estates Water System's 0.77 ppb sits at the 46th percentile in Missouri and the 47th nationally (higher means more lead).
Other water systems in San Augustine County
1 other system shares San Augustine County; 1 of them has a higher latest lead result than El Pinon Estates Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| La Playa Subdivision Water System | 65 | 2.16 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 El Pinon Estates Water System 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. The action level is dropping - the 10 ppb rule from 2027.