City Of Mont Belvieu, TX
Lead detected, under the action levels
Latest 90th-percentile lead: 2.5 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.
City Of Mont Belvieu at a glance
City Of Mont Belvieu serves about 12,864 people through 4,488 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 groundwater, in Chambers County, Texas. EPA system ID: TX0360017; phone on file: 281-576-2213. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2025 (2.54 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for City Of Mont Belvieu is 4 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 2.5 ppb |
| 2025 | 2.54 ppb |
| 2022 | 1.8 ppb |
| 2019 | 0 (not detected) |
| 2016 | 4 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. City Of Mont Belvieu's 2.5 ppb sits at the 88th percentile in Texas and the 78th nationally (higher means more lead).
Other water systems in Chambers County
28 other systems share Chambers County; 3 of them have a higher latest lead result than City Of Mont Belvieu. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Tbcd Winnie Stowell | 8,397 | 2.61 ppb |
| Gray Utility Service | 8,004 | 0 (not detected) |
| 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) |
Next steps for Mont Belvieu, TX
Test your own tap with a certified lab first-draw sample; Mont Belvieu, 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 City Of Mont Belvieu 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. Systems that went over once often dip back under; here is what that means.