San Leon Mud, TX
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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.
San Leon Mud at a glance
San Leon Mud serves about 11,622 people through 3,874 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 Galveston County, Texas. EPA system ID: TX0840063; phone on file: 281-339-1586. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2021 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for San Leon Mud is 2.69 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2017 | 2.69 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. San Leon Mud'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.
Other water systems in Galveston County
25 other systems share Galveston County; 12 of them have a higher latest lead result than San Leon Mud. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of League City | 149,557 | 3 ppb |
| City Of Texas City | 61,541 | 0.6 ppb |
| City Of Galveston | 52,326 | 3.13 ppb |
| City Of Friendswood | 43,190 | 4.61 ppb |
| Galveston County Wcid 1 | 30,399 | 1.23 ppb |
| Bolivar Peninsula Sud | 18,424 | 3.51 ppb |
| City Of La Marque | 15,154 | 0.58 ppb |
| Bacliff Mud | 8,900 | 0 (not detected) |
| Galveston County Wcid 12 | 8,721 | 1.6 ppb |
| City Of Hitchcock | 8,346 | 0.78 ppb |
What to do in your house
Look up your address in San Leon Mud'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 San Leon Mud 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. A zero today does not rule out a jump later - the rules are tightening in 2027.