Austin Aqua System, TX
Lead detected, under the action levels
Latest 90th-percentile lead: 0.53 ppb (monitoring period 2024-2024). 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 Austin Aqua System
Austin Aqua System serves about 261 people through 87 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Burnet County, Texas. EPA system ID: TX0270042. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
Against the period ending 2024 (0.59 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Austin Aqua System is 0.59 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0.53 ppb |
| 2024 | 0.59 ppb |
How Austin Aqua System 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. Austin Aqua System's 0.53 ppb sits at the 53rd percentile in Texas and the 44th nationally (higher means more lead).
Neighbouring systems
31 other systems share Burnet County; 24 of them have a higher latest lead result than Austin Aqua System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Marble Falls | 8,059 | 1.84 ppb |
| City Of Burnet | 7,011 | 1.93 ppb |
| City Of Granite Shoals | 6,795 | 1.43 ppb |
| City Of Bertram | 3,636 | 1.21 ppb |
| City Of Meadowlakes | 2,480 | 3.83 ppb |
| City Of Cottonwood Shores | 2,157 | 1.86 ppb |
| Spicewood Beach | 1,452 | 4.06 ppb |
| City Of Highland Haven Water System | 734 | 2.08 ppb |
| City Of Granite Shoals Sherwood Iii | 675 | 5.87 ppb |
| Ridge Harbor | 573 | 2.13 ppb |
Next steps for Arlington, TX
Test your own tap with a certified lab first-draw sample; Arlington, 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 Austin Aqua 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. What a 90th-percentile result does and does not tell you: how to read a lead result. The action level is dropping - the 10 ppb rule from 2027.