Gray Utility Service, TX
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2025-2025). 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 Gray Utility Service
Gray Utility Service serves about 8,004 people through 2,668 service connections, which makes it a medium-sized system under EPA's size classes. It is privately owned and draws groundwater, in Chambers County, Texas. EPA system ID: TX0360005; phone on file: 512-990-4400. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
That is down 3.75 ppb from 3.75 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Gray Utility Service is 3.75 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2024 | 3.75 ppb |
| 2021 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2019 | 1.36 ppb |
| 2018 | 0.6 ppb |
How Gray Utility Service 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. Gray Utility Service's reported as 0 (not detected) sits at the 45th percentile in Texas and the 36th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
28 other systems share Chambers County; 13 of them have a higher latest lead result than Gray Utility Service. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Mont Belvieu | 12,864 | 2.5 ppb |
| Tbcd Winnie Stowell | 8,397 | 2.61 ppb |
| Tbcd West Treatment Plant | 7,695 | 3.77 ppb |
| Chambers County Mud 1 | 2,500 | 1.21 ppb |
| City Of Anahuac | 2,296 | 0 (not detected) |
| Plantation On Cotton Bayou | 1,557 | 0 (not detected) |
| Coles Crossing | 1,521 | 0 (not detected) |
| Barrow Ranch | 774 | 0.81 ppb |
| Tower Terrace | 768 | 0 (not detected) |
| Woodland Acres Subdivision | 643 | 0 (not detected) |
Your move
Look up your address in Gray Utility Service'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 Gray Utility Service 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. Why sampled homes are the worst-case ones is in the guide to reading the number. A zero today does not rule out a jump later - the rules are tightening in 2027.