Old Chisolm Estates, TX
Lead detected, under the action levels
Latest 90th-percentile lead: 3 ppb (monitoring period 2023-2023). 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.
Who runs the water here
Old Chisolm Estates serves about 546 people through 182 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Wise County, Texas. EPA system ID: TX2490036; phone on file: 512-990-4400. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
That is down 2.5 ppb from 5.5 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Old Chisolm Estates is 5.5 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 3 ppb |
| 2022 | 5.5 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. Old Chisolm Estates's 3 ppb sits at the 91st percentile in Texas and the 82nd nationally (higher means more lead).
Nearby utilities
42 other systems share Wise County; 2 of them have a higher latest lead result than Old Chisolm Estates. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Decatur Water Plant | 9,087 | 0 (not detected) |
| City Of Bridgeport | 6,083 | 0 (not detected) |
| West Wise Sud | 3,909 | 0 (not detected) |
| City Of Runaway Bay | 2,458 | 0 (not detected) |
| Chisholm Springs | 2,049 | 0 (not detected) |
| City Of Boyd | 2,044 | 0 (not detected) |
| City Of Rhome | 1,680 | 0 (not detected) |
| City Of Chico | 1,596 | 0 (not detected) |
| City Of Alvord | 1,360 | 0 (not detected) |
| City Of Newark | 1,232 | 0 (not detected) |
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 Old Chisolm 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.