City Of Rowlett, TX
Lead detected, under the action levels
Latest 90th-percentile lead: 2.6 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 Rowlett at a glance
City Of Rowlett serves about 68,123 people through 27,488 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 surface water, in Dallas County, Texas. EPA system ID: TX0570056; phone on file: 972-412-6109. 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 (1.67 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for City Of Rowlett is 5.36 ppb across 12 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 2.6 ppb |
| 2025 | 1.67 ppb |
| 2024 | 2.77 ppb |
| 2024 | 2.79 ppb |
| 2023 | 2.31 ppb |
| 2022 | 2.36 ppb |
| 2021 | 2.84 ppb |
| 2020 | 5.36 ppb |
| 2019 | 3 ppb |
| 2018 | 1.92 ppb |
| 2017 | 3.51 ppb |
| 2016 | 3.64 ppb |
Where this result ranks
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 Rowlett's 2.6 ppb sits at the 88th percentile in Texas and the 78th nationally (higher means more lead).
Neighbouring systems
32 other systems share Dallas County; 1 of them has a higher latest lead result than City Of Rowlett. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Dallas Water Utility | 1,356,479 | 1.09 ppb |
| City Of Irving | 264,546 | 1 ppb |
| City Of Garland | 248,822 | 1.22 ppb |
| City Of Grand Prairie | 201,843 | 1.2 ppb |
| City Of Mesquite | 158,412 | 1.05 ppb |
| City Of Carrollton | 136,170 | 0 (not detected) |
| City Of Richardson | 122,615 | 2.05 ppb |
| City Of Desoto | 57,999 | 0 (not detected) |
| City Of Cedar Hill | 50,904 | 0 (not detected) |
| City Of Coppell | 43,193 | 0 (not detected) |
Next steps for Rowlett, TX
Test your own tap with a certified lab first-draw sample; Rowlett, 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 Rowlett 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. Systems that went over once often dip back under; here is what that means.