City Of Southmayd, TX
Exceeded the action level in the past
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2022-2024). 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.
About City Of Southmayd
City Of Southmayd serves about 489 people through 163 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Grayson County, Texas. EPA system ID: TX0910045; phone on file: 903-868-9420. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
City Of Southmayd's lead record
That is down 31 ppb from 31 ppb in the period ending 2018. The highest 90th-percentile result EPA holds for City Of Southmayd is 31 ppb across 2 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2018 | 31 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. City Of Southmayd's reported as 0 (not detected) sits at the 20th percentile in Texas and the 22nd nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Grayson County
39 other systems share Grayson County; 17 of them have a higher latest lead result than City Of Southmayd. 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 |
| City Of Van Alstyne | 10,644 | 0.81 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) |
Your move
Test your own tap with a certified lab first-draw sample; Southmayd, 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 Southmayd 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. Why an old exceedance still matters: over the limit before, under it now.