Stonegate Water System, TX
Lead detected, under the action levels
Latest 90th-percentile lead: 1.4 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 Stonegate Water System
Stonegate Water System serves about 300 people through 100 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Kendall County, Texas. EPA system ID: TX1300032; phone on file: 512-990-4400. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
The highest 90th-percentile result EPA holds for Stonegate Water System is 1.4 ppb across 1 monitoring period, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 1.4 ppb |
Where this result ranks
Of the 4,447 Texas systems with a lead result, the median latest reading is 0.28 ppb; 15 are over 15 ppb right now and 202 have gone over at some point. Stonegate Water System's 1.4 ppb sits at the 73rd percentile in Texas and the 62nd nationally (higher means more lead).
Other water systems in Kendall County
15 other systems share Kendall County; 4 of them have a higher latest lead result than Stonegate Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Boerne | 24,769 | 1.4 ppb |
| Kendall West Utility | 5,136 | 1.4 ppb |
| Kendall County Wcid 1 | 3,579 | 3.1 ppb |
| Gbra Cordillera Ranch | 1,707 | 1.5 ppb |
| Walnut Hills | 579 | 0 (not detected) |
| Kendall Pointe | 342 | 0 (not detected) |
| Cascade Mobile Home Park | 303 | 2 ppb |
| Foothills Mobile Home Ranch | 182 | 1.11 ppb |
| Ten West Ranches | 126 | 0.3 ppb |
| Platten Creek Water System | 120 | 0.3 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Austin, TX 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 Stonegate 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. 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.