Cottonwood Hills Estates, TX
Exceeded the action level in the past
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 result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Cottonwood Hills Estates at a glance
Cottonwood Hills Estates serves about 303 people through 101 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Tarrant County, Texas. EPA system ID: TX2200045; phone on file: 512-990-4400. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
That is down 2.32 ppb from 2.32 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Cottonwood Hills Estates is 36.2 ppb across 4 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2024 | 2.32 ppb |
| 2024 | 1.59 ppb |
| 2023 | 36.2 ppb over 15 |
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. Cottonwood Hills Estates's reported as 0 (not detected) sits at the 16th percentile in Texas and the 19th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
74 other systems share Tarrant County; 45 of them have a higher latest lead result than Cottonwood Hills Estates. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Fort Worth | 955,900 | 3 ppb |
| City Of Arlington | 413,955 | 1.17 ppb |
| City Of Mansfield | 89,227 | 4.33 ppb |
| City Of North Richland Hills | 74,859 | 1.9 ppb |
| City Of Euless | 61,601 | 3.3 ppb |
| City Of Grapevine | 52,346 | 1.7 ppb |
| City Of Bedford | 49,941 | 0.8 ppb |
| City Of Haltom City | 47,014 | 2 ppb |
| City Of Keller | 46,308 | 2.16 ppb |
| City Of Hurst | 40,454 | 2 ppb |
Next steps for Austin, TX
Test your own tap with a certified lab first-draw sample; Austin, 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 Cottonwood Hills Estates 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. What a 90th-percentile result does and does not tell you: how to read a lead result. More in what a past exceedance means today.