Jbsa Randolph, TX
Lead detected, under the action levels
Latest 90th-percentile lead: 2 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 Jbsa Randolph
Jbsa Randolph serves about 10,949 people through 727 service connections, which makes it a large system under EPA's size classes. It is federally owned and draws groundwater, in Bexar County, Texas. EPA system ID: TX0150115; phone on file: 210-247-8554. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
That is up 2 ppb from 0 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Jbsa Randolph is 3.2 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 2 ppb |
| 2021 | 0 (not detected) |
| 2020 | 2 ppb |
| 2019 | 3.2 ppb |
| 2018 | 1.7 ppb |
| 2017 | 3.1 ppb |
| 2016 | 2.9 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. Jbsa Randolph's 2 ppb sits at the 83rd percentile in Texas and the 73rd nationally (higher means more lead).
Neighbouring systems
40 other systems share Bexar County; 5 of them have a higher latest lead result than Jbsa Randolph. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| San Antonio Water System | 2,643,729 | 1.6 ppb |
| Jbsa Sam Houston | 37,563 | 0 (not detected) |
| City Of Converse | 29,709 | 0.5 ppb |
| East Central Sud | 26,137 | 1.5 ppb |
| Jbsa Lackland | 20,907 | 0 (not detected) |
| City Of Universal City | 20,119 | 0.5 ppb |
| Atascosa Rural Wsc | 13,857 | 2 ppb |
| City Of Selma | 11,418 | 0 (not detected) |
| Fair Oaks Ranch Utilities | 9,768 | 2.2 ppb |
| City Of Live Oak | 8,724 | 1.48 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; San Antonio, 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 Jbsa Randolph 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. Systems that went over once often dip back under; here is what that means.