Summit Ridge, TX
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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 Summit Ridge
Summit Ridge serves about 252 people through 86 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Medina County, Texas. EPA system ID: TX1630048; phone on file: 830-312-4600. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
Against the period ending 2023 (0.6 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Summit Ridge is 1 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2023 | 0.6 ppb |
| 2020 | 0.7 ppb |
| 2020 | 1 ppb |
Against other Texas systems
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. Summit Ridge's reported as 0 (not detected) sits at the 14th percentile in Texas and the 17th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
27 other systems share Medina County; 18 of them have a higher latest lead result than Summit Ridge. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Benton City Wsc | 32,000 | 0.7 ppb |
| Yancey Wsc | 12,186 | 3.5 ppb |
| City Of Hondo | 11,044 | 1.4 ppb |
| East Medina County Sud Unit 1 | 6,153 | 0.8 ppb |
| City Of Devine | 4,335 | 0.8 ppb |
| City Of Castroville | 3,913 | 7.2 ppb |
| East Medina County Sud Unit 2 | 2,505 | 0.7 ppb |
| West Medina Wsc | 1,683 | 0.5 ppb |
| City Of La Coste | 1,488 | 4.6 ppb |
| East Medina County Sud Unit 3 | 1,365 | 0 (not detected) |
What to do in your house
Look up your address in Summit Ridge'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 Summit Ridge 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.