North Austin Mud 1, TX
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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.
Who runs the water here
North Austin Mud 1 serves about 11,133 people through 2,710 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Travis County, Texas. EPA system ID: TX2270226; phone on file: 512-246-1400. They can tell you what your service line is made of and whether they pay to replace it.
North Austin Mud 1's lead record
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for North Austin Mud 1 is 0 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 0 (not detected) |
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. North Austin Mud 1's reported as 0 (not detected) sits at the 47th percentile in Texas and the 37th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
87 other systems share Travis County; 61 of them have a higher latest lead result than North Austin Mud 1. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Austin Water & Wastewater | 1,115,323 | 0 (not detected) |
| City Of Pflugerville | 63,464 | 1.1 ppb |
| Travis County Wcid 17 | 45,165 | 2.95 ppb |
| Manville Wsc | 39,648 | 1.41 ppb |
| West Travis County Public Utility Agency | 35,664 | 2.2 ppb |
| Windermere Community | 21,231 | 1.94 ppb |
| City Of Manor | 19,620 | 1.2 ppb |
| Wells Branch Mud 1 | 18,015 | 0 (not detected) |
| Northtown Mud | 11,520 | 0.44 ppb |
| Lakeway Mud | 10,512 | 3.34 ppb |
Next steps for Austin, TX
Look up your address in North Austin Mud 1'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 North Austin Mud 1 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.