Ruby Ranch Wsc, TX
Lead detected, under the action levels
Latest 90th-percentile lead: 2.9 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.
Who runs the water here
Ruby Ranch Wsc serves about 738 people through 246 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Hays County, Texas. EPA system ID: TX1050122; phone on file: 866-643-3472. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
That is up 1.2 ppb from 1.7 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Ruby Ranch Wsc is 2.9 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2.9 ppb |
| 2022 | 1.7 ppb |
How Ruby Ranch Wsc 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. Ruby Ranch Wsc's 2.9 ppb sits at the 90th percentile in Texas and the 80th nationally (higher means more lead).
Neighbouring systems
49 other systems share Hays County; 5 of them have a higher latest lead result than Ruby Ranch Wsc. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of San Marcos | 72,970 | 1.63 ppb |
| City Of Kyle | 52,000 | 1.91 ppb |
| Texas State University - San Marcos | 43,552 | 1.3 ppb |
| Goforth Sud | 34,893 | 0 (not detected) |
| County Line Sud | 19,609 | 0 (not detected) |
| City Of Buda | 13,830 | 1.46 ppb |
| Dripping Springs Wsc | 8,037 | 1.89 ppb |
| Plum Creek | 7,065 | 1.24 ppb |
| Wimberley Wsc | 5,334 | 2.08 ppb |
| Hays County Wcid 2 | 3,381 | 2.88 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Buda, 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 Ruby Ranch Wsc 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. The action level is dropping - the 10 ppb rule from 2027.