water 101

At Artesia Springs, we don’t just bottle water — we deliver the purest hydration straight from one of Texas’s most remarkable natural resources: the Edwards Aquifer, a 70-million-year-old limestone formation in the Texas Hill Country. This ancient natural source gives us water that’s naturally mineral-rich, crisp, and refreshing. Every drop is carefully protected, filtered, and bottled right here at the source in San Antonio, Texas.

purified water

Source: Edwards Aquifer

Filtration: Multi-stage (sediment, carbon, RO, etc.)

Mineral content: Minerals removed; may be remineralized

Purification intensity: High; uses advanced technologies (RO, distillation)

Disinfection: Standard (UV, ozonation, or chlorination)

Taste: Neutral, consistent

Processing goal: Achieve maximum purity

alkaline water

Source: Edwards Aquifer

Filtration: Multi-stage (sediment, carbon, RO, etc.)

Mineral content: Remineralized

Purification intensity: High; uses advanced technologies (RO, Minerally Enhanced)

Disinfection: Standard (UV, ozonation, or chlorination)

Taste: Neutral, consistent

Processing goal: Achieve maximum purity with 9.5 PH or higher

artesian water

Source: Edwards Aquifer

Filtration: Minimal (sediment filters)

Mineral content: Retains natural minerals

Purification intensity: Low; relies on natural filtration

Disinfection: Optional (UV, ozonation)

Taste: Distinct, influenced by minerals

Processing goal: Preserve natural qualities

Edwards Aquifer

Beneath the Balcones Fault Zone in south-central Texas lies the Edwards Aquifer, spanning around 8,000 square miles from the Hill Country to the Gulf Coastal Plain. This unique formation is made up of limestone and dolostone, making it a karst aquifer—a system known for rapid water recharge and high water movement through naturally formed caves, sinkholes, and fractures.

Image courtesy of eaa-Edwards Aquifer Authority

Millions of years ago, a shallow sea covered the region. As marine organisms settled and hardened over time, they created the limestone base that forms the aquifer today. Rainwater, slightly acidic, slowly dissolved the rock, creating the complex network that holds and moves water underground.

Sourced right beneath your feet in central Texas, water from the Edwards Aquifer carries a sense of place, heritage, and quality. It's the same water that sustains iconic natural springs, rivers, and ecosystems across the Hill Country and San Antonio region.

70 million years ago

A shallow tropical sea covered Central Texas, depositing marine sediments that would become the limestone foundation of the Edwards Aquifer.

8000 square miles

That’s the area the aquifer spans, stretching from the Hill Country to the Gulf Coastal Plain.

50+ springs and rivers

The aquifer feeds dozens of iconic natural springs and waterways, including San Marcos and Comal Springs — vital ecosystems sustained by its flow.

2 million people

The number of Texans who rely on the Edwards Aquifer every day for clean, safe drinking water.