Dyess Air Force Base, TX
Lead detected, under the action levels
Latest 90th-percentile lead: 1.94 ppb (monitoring period 2026-2026). 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 Dyess Air Force Base
Dyess Air Force Base serves about 7,183 people through 1,500 service connections, which makes it a medium-sized system under EPA's size classes. It is federally owned and draws surface water, in Taylor County, Texas. EPA system ID: TX2210013; phone on file: 325-696-4444. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2026 (2.38 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Dyess Air Force Base is 3 ppb across 8 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 1.94 ppb |
| 2026 | 2.38 ppb |
| 2023 | 0 (not detected) |
| 2022 | 1.2 ppb |
| 2021 | 2.4 ppb |
| 2020 | 0 (not detected) |
| 2017 | 1 ppb |
| 2016 | 3 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. Dyess Air Force Base's 1.94 ppb sits at the 81st percentile in Texas and the 69th nationally (higher means more lead).
Neighbouring systems
13 other systems share Taylor County; 2 of them have a higher latest lead result than Dyess Air Force Base. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Abilene | 130,501 | 0 (not detected) |
| Steamboat Mountain Wsc | 8,178 | 0 (not detected) |
| Potosi Wsc | 7,413 | 0 (not detected) |
| City Of Merkel | 3,573 | 0 (not detected) |
| Sun Wsc | 3,420 | 0 (not detected) |
| View Caps Wsc | 2,928 | 0 (not detected) |
| Hamby Wsc | 2,082 | 0 (not detected) |
| Tuscola Taylor County Wcid 1 | 1,890 | 2.01 ppb |
| City Of Buffalo Gap | 1,502 | 0 (not detected) |
| City Of Tye | 1,176 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Dyess Afb, 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 Dyess Air Force Base 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.