East Rio Hondo Wsc, 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.
About East Rio Hondo Wsc
East Rio Hondo Wsc serves about 25,509 people through 8,977 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 Cameron County, Texas. EPA system ID: TX0310096; phone on file: 956-247-7815. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
East Rio Hondo Wsc'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 East Rio Hondo Wsc is 1.1 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 | 1.1 ppb |
How East Rio Hondo Wsc 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. East Rio Hondo Wsc's reported as 0 (not detected) sits at the 48th percentile in Texas and the 39th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Cameron County
20 other systems share Cameron County; 7 of them have a higher latest lead result than East Rio Hondo Wsc. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Brownsville Public Utilities Board | 201,249 | 0 (not detected) |
| Harlingen Water Works System | 85,900 | 0 (not detected) |
| Laguna Madre Water District | 46,674 | 0 (not detected) |
| City Of San Benito | 24,250 | 0 (not detected) |
| El Jardin Wsc | 9,423 | 1.81 ppb |
| Olmito Wsc | 8,952 | 0 (not detected) |
| City Of La Feria | 7,226 | 1.6 ppb |
| City Of Los Fresnos | 6,009 | 2.57 ppb |
| City Of Primera | 5,811 | 0 (not detected) |
| Valley Mud 2 Rancho Viejo | 3,644 | 0 (not detected) |
What to do in your house
Look up your address in East Rio Hondo Wsc'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 East Rio Hondo Wsc 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. Small systems behave differently: why small systems go over more often.