City and town drinking water records

Water systems serving San Antonio, TX

10 community water systems have a mapped service area in San Antonio, TX. San Antonio Water System covers 96% of the area inside San Antonio's Census boundary and reports serving 2,113,151 people in all.

5 of them (50%) had at least one health-based violation in the last 10 years. 4 systems still have one unresolved.

6 rely mainly on groundwater and 4 on surface water, counting water bought from other systems.

9 systems filed a lead service line inventory listing 0 lead lines, 43 galvanized lines that must be replaced and 346,335 lines of unknown material.

Community water systems: 10
Systems with a health-based violation, last 10 years: 5
Systems with one unresolved: 4
Lead service lines in inventories: 0

Water systems serving San Antonio

10 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	Area	People served	Main source	Health-based violations, 10 years	Unresolved	Lead lines
San Antonio Water System	Covers 96% of San Antonio	2,113,151	Purchased surface water	0	0	0
Jbsa - Sam Houston	Mapped area inside San Antonio	37,563	Groundwater	1	0	0
East Central SUD	Covers 1% of San Antonio	26,137	Purchased surface water	0	0	0
Atascosa Rural WSC	Covers under 1% of San Antonio	13,857	Purchased surface water	14	4	0
Camp Stanley Storage Activity	Covers under 1% of San Antonio	133	Purchased surface water	0	0	0
Cadillac Water	Mapped area inside San Antonio	252	Groundwater	0	0	0
North Breeze MHP	Mapped area inside San Antonio	123	Groundwater	1	3	0
Little Joes Ice House & Trailer Park	Mapped area inside San Antonio	106	Groundwater	0	0	0
Lazy Acres Trailer Park	Mapped area inside San Antonio	105	Groundwater	1	5	No inventory
Evetts Apartments	Mapped area inside San Antonio	51	Groundwater	1	1	0

Other cities and towns in Bexar County

30 places

Back to Bexar County, TX

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