City Of Van Alstyne, TX
Exceeded the action level in the past
Latest 90th-percentile lead: 0.81 ppb (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.
Who runs the water here
City Of Van Alstyne serves about 10,644 people through 3,548 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 Grayson County, Texas. EPA system ID: TX0910009; phone on file: 903-482-5426. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
That is down 1.22 ppb from 2.03 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for City Of Van Alstyne is 18 ppb across 8 monitoring periods, 2 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0.81 ppb |
| 2024 | 2.03 ppb |
| 2020 | 2.3 ppb |
| 2019 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2018 | 1.1 ppb |
| 2017 | 18 ppb over 15 |
| 2017 | 18 ppb over 15 |
How City Of Van Alstyne 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. City Of Van Alstyne's 0.81 ppb sits at the 60th percentile in Texas and the 48th nationally (higher means more lead).
Neighbouring systems
39 other systems share Grayson County; 15 of them have a higher latest lead result than City Of Van Alstyne. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Sherman | 43,645 | 0 (not detected) |
| City Of Denison | 27,500 | 1.82 ppb |
| Two Way Sud | 6,804 | 0 (not detected) |
| South Grayson Sud | 6,750 | 7.49 ppb |
| City Of Howe | 4,548 | 0 (not detected) |
| Kentuckytown Wsc | 4,455 | 2.08 ppb |
| Tanglewood On Texoma | 4,341 | 0 (not detected) |
| Luella Sud | 4,200 | 0 (not detected) |
| City Of Whitesboro | 4,192 | 0 (not detected) |
| Northwest Grayson County Wcid 1 | 3,615 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Van Alstyne, 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 Van Alstyne 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. Why an old exceedance still matters: over the limit before, under it now.