Tap Truth EPA drinking water records, in plain English

County drinking water records

Hays County, TX drinking water systems

52 community water systems serve Hays County, TX, reporting 329,848 people served in all. A system that also serves other counties counts all of its customers here.

13 of them (25%) had at least one health-based violation in the last 10 years. 20 systems still have one unresolved.

34 rely mainly on groundwater and 18 on surface water, counting water bought from other systems.

50 systems filed a lead service line inventory listing 2 lead lines, 1,813 galvanized lines that must be replaced and 3,847 lines of unknown material.

4 more systems are placed in Hays County, TX by the county their records name because they have no service area map that lines up with their own records, so they are listed apart and not counted here.

Community water systems
52
People served, sum of each system's own figure
329,848
Systems with a health-based violation, last 10 years
13
Systems with one unresolved
20
Lead service lines in inventories
2

Water systems serving Hays County

52 systems

People served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
City of San Marcos San Marcos 72,970 Surface water 1 0 0
City of Kyle Kyle 52,000 Purchased surface water 0 0 1
Texas State University - San Marcos San Marcos 43,552 Groundwater 0 0 1
West Travis County Public Utility Agency Bee Cave, Austin and 2 more and land outside them 35,664 Surface water 3 1 0
Goforth SUD Niederwald, Buda and 1 more and land outside them 34,893 Purchased surface water 2 0 0
County Line SUD Uhland and Kyle and land outside them 19,609 Purchased surface water 0 2 0
City of Buda Buda 13,830 Purchased surface water 0 1 0
Dripping Springs WSC Dripping Springs and land outside it 8,037 Purchased surface water 0 0 0
Plum Creek Buda and Kyle 7,065 Purchased surface water 0 0 0
Wimberley WSC Wimberley 5,334 Groundwater 0 0 0
Hays County WCID 2 Belterra 3,381 Purchased surface water 0 0 0
Woodcreek Utility Co 2 Outside cities and towns 3,096 Groundwater under direct influence 0 3 0
Hays County WCID 1 Belterra 2,850 Purchased surface water 0 0 0
Deer Creek Water Outside cities and towns 2,757 Purchased surface water 0 0 0
Woodcreek Utility Co 1 Woodcreek 2,700 Groundwater 0 0 0
South Buda WCID 1 Outside cities and towns 2,517 Purchased surface water 0 0 0
Headwaters at Barton Creek Dripping Springs and land outside it 2,315 Purchased surface water 0 1 0
Cimarron Park Water Outside cities and towns 2,079 Groundwater 0 1 0
Mid-Tex Utilities Outside cities and towns 1,569 Purchased surface water 0 0 0
Meadow Woods Water Supply Outside cities and towns 1,554 Groundwater 0 0 0
Leisurewoods Water Outside cities and towns 1,338 Groundwater 0 0 0
Reunion Ranch WCID Outside cities and towns 1,326 Purchased surface water 0 1 0
Oak Meadows Outside cities and towns 954 Groundwater 0 1 0
La Ventana Water Supply System Outside cities and towns 747 Groundwater 1 3 0
Ruby Ranch WSC Outside cities and towns 738 Groundwater 0 1 0
City of Mountain City Mountain City 725 Groundwater 0 1 0
Elliott Ranch Water System Outside cities and towns 639 Groundwater 0 0 0
Cedar Oak Mesa WSC Outside cities and towns 497 Groundwater 0 3 0
Sierra West Subdivision Outside cities and towns 495 Groundwater 0 0 0
Goldenwood West WSC Outside cities and towns 462 Groundwater under direct influence 1 2 0
Chaparral Water System Hays Outside cities and towns 444 Groundwater 0 0 0
Huntington Estates Outside cities and towns 378 Groundwater 0 0 0
Oak Forest WSC Outside cities and towns 339 Groundwater 0 0 0
River Oaks Ranch Outside cities and towns 336 Groundwater 0 1 0
Southwest Territory Outside cities and towns 315 Groundwater 0 0 0
Mountain Crest Water Outside cities and towns 309 Groundwater 0 0 0
City of Hays Hays 270 Groundwater 0 0 0
Skyline Ranch Estates WSC Outside cities and towns 261 Groundwater 1 0 0
Granite Creek WSC Outside cities and towns 219 Groundwater 0 0 0
Cardinal Valley Water Outside cities and towns 216 Groundwater 0 0 0
The Woodlands Water System Outside cities and towns 195 Groundwater 0 0 0
Copper Hills Water System Outside cities and towns 141 Groundwater 0 0 0
LSR WSC Outside cities and towns 126 Groundwater 1 1 0
Radiance WSC Outside cities and towns 120 Groundwater under direct influence 1 2 0
Gateway Development Outside cities and towns 108 Groundwater 0 0 0
Cielo Azul Ranch Outside cities and towns 84 Groundwater 1 0 0
Wimberley Oaks WSC Outside cities and towns 69 Groundwater 2 3 0
JP and LP Rentals Outside cities and towns 60 Groundwater 0 1 0
Blue Agave Mobile Home Park San Marcos 57 Groundwater 1 4 No inventory
Signal Hill Water System 24 Outside cities and towns 42 Groundwater 1 4 No inventory
Gateway Estates III Outside cities and towns 36 Groundwater 0 0 0
Prochnow Country Homes Outside cities and towns 30 Groundwater 1 0 0

Systems placed by county record in Hays County

4 systems

EPA has no service area map for these systems. They are placed by the county their records name (the counties EPA lists them serving, or the county coded in their IDs where EPA lists none), and without a map they are not counted in the figures above.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
City of Dripping Springs County on record 531 Purchased surface water 0 0 No inventory
Driftwood Golf and Ranch Club County on record 294 Purchased surface water 0 1 No inventory
Gbra Ih-35 Transmission Main County on record Not reported Purchased surface water 0 0 0
Alliance Regional Water Authority County on record Not reported Purchased groundwater 0 0 No inventory

Cities and towns in Hays County

12 places

Back to Texas

Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations