Johnson County Sud, TX
Lead detected, under the action levels
Latest 90th-percentile lead: 4.24 ppb (monitoring period 2026-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
About Johnson County Sud
Johnson County Sud serves about 65,517 people through 22,824 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 Johnson County, Texas. EPA system ID: TX1260018; phone on file: 817-760-5200. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Johnson County Sud's lead record
That is up 1.58 ppb from 2.66 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Johnson County Sud is 6.1 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 4.24 ppb |
| 2025 | 2.66 ppb |
| 2022 | 2.4 ppb |
| 2021 | 6.1 ppb |
| 2018 | 3.2 ppb |
| 2017 | 3.2 ppb |
| 2016 | 3.17 ppb |
How Johnson County Sud 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. Johnson County Sud's 4.24 ppb sits at the 95th percentile in Texas and the 89th nationally (higher means more lead).
Nearby utilities
56 other systems share Johnson County; 3 of them have a higher latest lead result than Johnson County Sud. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Burleson | 53,381 | 3.14 ppb |
| City Of Cleburne | 34,075 | 0 (not detected) |
| Bethesda Wsc | 33,441 | 1.7 ppb |
| City Of Keene | 6,863 | 1.17 ppb |
| City Of Alvarado | 6,614 | 1.7 ppb |
| Bethany Sud | 4,503 | 1.49 ppb |
| City Of Venus | 3,816 | 1.69 ppb |
| Metroplex Homesteads Water Supply | 3,588 | 0 (not detected) |
| Parker Wsc | 3,300 | 2.29 ppb |
| Crowley 1 Acre Sky Corp Water | 2,061 | 0 (not detected) |
Next steps for Joshua, TX
Test your own tap with a certified lab first-draw sample; Joshua, 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 Johnson County Sud 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. Size matters more than most people expect: small vs large water systems.