City Of Cotulla Public Water Supply, 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.
City Of Cotulla Public Water Supply at a glance
City Of Cotulla Public Water Supply serves about 5,640 people through 1,741 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in La Salle County, Texas. EPA system ID: TX1420001; phone on file: 830-879-2367. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
Against the period ending 2022 (0.7 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for City Of Cotulla Public Water Supply is 2.6 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 0.7 ppb |
| 2019 | 0 (not detected) |
| 2019 | 0.6 ppb |
| 2016 | 2.6 ppb |
How City Of Cotulla Public Water Supply 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. City Of Cotulla Public Water Supply's reported as 0 (not detected) sits at the 43rd percentile in Texas and the 35th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
3 other systems share La Salle County; 3 of them have a higher latest lead result than City Of Cotulla Public Water Supply. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Encinal Wsc | 1,338 | 0.9 ppb |
| Gardendale Wsc | 174 | 1.2 ppb |
| Fowlerton Wsc | 135 | 3.1 ppb |
What to do in your house
Look up your address in City Of Cotulla Public Water Supply'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 City Of Cotulla Public Water Supply 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. A zero today does not rule out a jump later - the rules are tightening in 2027.