Flat Rock Estates, TX
Lead detected, under the action levels
Latest 90th-percentile lead: 2.24 ppb (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. 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.
Flat Rock Estates at a glance
Flat Rock Estates serves about 108 people through 36 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Parker County, Texas. EPA system ID: TX1840035; phone on file: 512-990-4400. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Flat Rock Estates's lead record
Against the period ending 2022 (2.1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Flat Rock Estates is 2.24 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2.24 ppb |
| 2022 | 2.1 ppb |
How Flat Rock Estates 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. Flat Rock Estates's 2.24 ppb sits at the 85th percentile in Texas and the 75th nationally (higher means more lead).
Other water systems in Parker County
69 other systems share Parker County; 10 of them have a higher latest lead result than Flat Rock Estates. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Walnut Creek Sud | 40,410 | 1.2 ppb |
| City Of Weatherford | 37,002 | 0 (not detected) |
| City Of Willow Park | 7,439 | 2.35 ppb |
| Parker County Sud Surface | 6,300 | 0 (not detected) |
| City Of Aledo | 5,521 | 0 (not detected) |
| City Of Springtown | 3,781 | 0 (not detected) |
| City Of Reno | 3,526 | 1.62 ppb |
| City Of Hudson Oaks | 3,487 | 0 (not detected) |
| Western Lake Estates | 2,982 | 0 (not detected) |
| Town Of Annetta Deer Creek | 2,418 | 1.5 ppb |
Your move
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 Flat Rock 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. 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.