Oak Forest South Water Supply, TX
Lead detected, under the action levels
Latest 90th-percentile lead: 1.2 ppb (monitoring period 2023-2025). 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.
Oak Forest South Water Supply at a glance
Oak Forest South Water Supply serves about 648 people through 216 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Kerr County, Texas. EPA system ID: TX1330091; phone on file: 512-990-4400. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
That is down 2.2 ppb from 3.4 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Oak Forest South Water Supply is 3.4 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.2 ppb |
| 2022 | 3.4 ppb |
How Oak Forest South Water Supply compares
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. Oak Forest South Water Supply's 1.2 ppb sits at the 69th percentile in Texas and the 59th nationally (higher means more lead).
Other water systems in Kerr County
66 other systems share Kerr County; 18 of them have a higher latest lead result than Oak Forest South Water Supply. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Kerrville | 30,530 | 3.34 ppb |
| Ingram Water Supply | 5,955 | 1.1 ppb |
| Loma Vista Water System | 3,720 | 1.8 ppb |
| Four Seasons | 1,059 | 0 (not detected) |
| Southern Hills | 1,005 | 1.9 ppb |
| Kerrville Va Hospital | 1,000 | 2.24 ppb |
| Erlund Subdivision | 821 | 0.7 ppb |
| Guadalupe Heights Utility | 678 | 1.3 ppb |
| Ingram Oaks Retirement Community | 669 | 0 (not detected) |
| Center Point Taylor System | 531 | 0 (not detected) |
Next steps for Austin, TX
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 Oak Forest South Water Supply 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. Systems that went over once often dip back under; here is what that means.