Southmost Regional Water Authority, TX
No lead results on file with EPA
Latest 90th-percentile lead: no result on file. The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. EPA's database has no Lead and Copper Rule results for this system. Without them there is nothing to go on, so a tap test is the only way to know.
Southmost Regional Water Authority at a glance
Southmost Regional Water Authority serves about 0 people through 5 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Cameron County, Texas. EPA system ID: TX0310150; phone on file: 617-599-9047. They can tell you what your service line is made of and whether they pay to replace it.
Nearby utilities
20 other systems share Cameron County. 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) |
| East Rio Hondo Wsc | 25,509 | 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) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Brownsville, 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 Southmost Regional Water Authority 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. Size matters more than most people expect: small vs large water systems.