Callaway Blue spring water is safe to drink. It meets FDA standards for bottled water, is tested using EPA-approved methods, and its published water quality reports show contaminant levels well below maximum allowable limits. The water comes from a protected spring in Missouri and undergoes natural filtration through deep rock before it’s bottled.
Where the Water Comes From
Callaway Blue is sourced from Blue Spring, located in a forested area with no nearby agricultural or industrial activity. Rainfall seeps more than a mile deep into a quartzite ridgeline, a type of extremely hard, dense rock that acts as a natural filter. The water spends roughly 30 years moving through this rock before resurfacing at the spring. That long underground journey means the water picks up minerals slowly and avoids surface-level contamination from pesticides, fertilizers, or industrial runoff.
What Testing Shows
Callaway Blue publishes annual water quality analyses conducted using EPA-approved laboratory methods. The results reference maximum contaminant levels set by the FDA for bottled water and standards from the International Bottled Water Association (IBWA).
In recent testing of the local water supply drawing from the same geological source, several key safety markers came back clean. Lead measured at 1.7 parts per billion, which is well under the FDA’s action level of 15 ppb for bottled water. Nitrate registered at just 0.06 parts per million, a fraction of the 10 ppm limit. Arsenic and coliform bacteria were not detected at all, meaning they fell below the threshold of the lab equipment used to look for them. No detectable coliform is exactly what you want to see, since its presence would signal possible contamination from animal or human waste.
Mineral Content and pH
The water has a total dissolved solids (TDS) reading of around 273 to 387 milligrams per liter, which places it in the moderate range. For context, most bottled spring waters fall between 50 and 500 mg/L. A higher TDS generally means more dissolved minerals, which can affect taste and mouthfeel.
The specific mineral breakdown includes roughly 58 to 73 mg/L of calcium, 24 to 32 mg/L of magnesium, and about 3 to 6 mg/L of potassium. These are modest amounts that contribute to the water’s clean, slightly mineral taste without making it taste “hard” or chalky. The calcium and magnesium content is typical of water that has spent decades filtering through rock.
Callaway Blue’s pH tests at 7.2, which is essentially neutral with a very slight lean toward alkaline. Pure water sits at 7.0, so this is about as close to neutral as spring water gets. There’s no indication the pH is artificially adjusted.
How to Store It Safely
The FDA doesn’t assign a specific expiration date to bottled water because water itself doesn’t spoil when properly sealed. That said, the container matters. Over time, especially in heat or direct sunlight, plastic bottles can leach trace chemicals into the water and the seal can degrade. The general industry recommendation is to drink bottled water within two years of the manufacture date.
For the best quality, keep bottles at room temperature in a dry spot away from sunlight. Never store them near cleaning products or other household chemicals, since plastic can absorb odors and trace compounds from its surroundings. If you’ve left a case of water in a hot car for an extended period, it’s better to replace it. Heat accelerates the breakdown of plastic packaging and can affect both taste and safety. If you’re storing water specifically for emergencies, plan to rotate your supply at least once a year.
How It Compares to Tap Water
Bottled spring water and municipal tap water are regulated by different agencies. The FDA oversees bottled water, while the EPA sets standards for public water systems. In practice, the allowable contaminant limits are similar, and in some cases the FDA’s rules for bottled water are stricter. Callaway Blue’s testing references both FDA and EPA benchmarks, which means its water is being measured against the tightest available standards.
The main practical difference is the source. Tap water is typically treated with chlorine or chloramine to kill bacteria during distribution through miles of piping. Spring water like Callaway Blue relies on its protected source and natural rock filtration instead, then is bottled close to the spring. This is why many people prefer the taste of spring water: no residual disinfectant flavor.