Chalk Hill Sud, 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 Chalk Hill Sud
Chalk Hill Sud serves about 4,830 people through 1,610 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 Rusk County, Texas. EPA system ID: TX2010050; phone on file: 903-643-2927. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Chalk Hill Sud is 0.86 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 | 0.86 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. Chalk Hill Sud's reported as 0 (not detected) sits at the 42nd 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.
Other water systems in Rusk County
32 other systems share Rusk County; 11 of them have a higher latest lead result than Chalk Hill Sud. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Henderson | 14,666 | 0 (not detected) |
| Cross Roads Sud | 4,062 | 0 (not detected) |
| Goodsprings Wsc | 2,541 | 0 (not detected) |
| City Of New London | 2,484 | 0 (not detected) |
| Minden-Brachfield Wsc | 2,346 | 0 (not detected) |
| City Of Overton | 2,275 | 0 (not detected) |
| Mt Enterprise Wsc | 2,205 | 1.33 ppb |
| South Rusk County Wsc | 1,947 | 0.6 ppb |
| Gaston Wsc | 1,917 | 0 (not detected) |
| City Of Tatum | 1,902 | 0 (not detected) |
Your move
Look up your address in Chalk Hill Sud'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 Chalk Hill 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. A zero today does not rule out a jump later - the rules are tightening in 2027.