Arrowhead water is a safe, drinkable spring water with a modest mineral profile. It won’t harm you, but it also won’t deliver meaningful health benefits beyond basic hydration. Its mineral content sits in the middle of the pack compared to other affordable spring waters, and it meets federal safety standards for contaminants. The bigger questions around Arrowhead tend to involve environmental controversy rather than what’s actually in the bottle.
What’s in the Water
Arrowhead is labeled as 100% mountain spring water, sourced from springs in and west of the Rocky Mountains. Because the water comes from multiple spring sources, its composition varies from bottle to bottle. The total dissolved solids range from 39 to 250 mg/L, which is a wide spread. Calcium runs between 3.5 and 52 mg/L, magnesium between 1.2 and 20 mg/L, and potassium is either undetectable or present in trace amounts up to 3.5 mg/L.
To put those numbers in perspective: you’d need to drink several liters of Arrowhead at the high end of its calcium range just to match what a single glass of milk provides. The minerals are there, but they’re not a meaningful dietary source for most people. If you’re eating a reasonably varied diet, the minerals in any bottled spring water are a rounding error in your daily intake.
How It Compares to Other Brands
A mineral analysis published in the Journal of General Internal Medicine compared dozens of North American bottled waters side by side. Arrowhead’s California source tested at 20 mg/L calcium, 5 mg/L magnesium, and 3 mg/L sodium. That puts it ahead of brands like Poland Spring (essentially zero calcium, 2 mg/L magnesium) and Crystal Geyser Alpine (zero calcium, 6 mg/L magnesium, but 13 mg/L sodium). It falls behind mineral-richer options like Mountain Valley (68 mg/L calcium) or Zephyrhills (52 mg/L calcium).
For a budget spring water, Arrowhead’s mineral content is perfectly average. If you specifically want water that contributes to your calcium or magnesium intake, higher-mineral options exist, but they tend to cost more per bottle.
pH Level
Arrowhead’s pH ranges from 6.6 to 8.2 at the time of bottling. That spans from slightly acidic to mildly alkaline, depending on which spring the water came from. If you’ve seen marketing claims about alkaline water being healthier, the evidence behind those claims is thin. Your body tightly regulates its own pH regardless of what you drink. A bottle landing at 7.5 or 8.0 isn’t doing anything different for your health than one at 6.8.
Contaminant and PFAS Concerns
The FDA tested 197 bottled water samples collected from U.S. retail locations between 2023 and 2024, screening for 18 types of PFAS (the persistent synthetic chemicals sometimes called “forever chemicals”). Ten of those 197 samples had detectable PFAS levels, but none exceeded the maximum contaminant levels the EPA has set for drinking water. The FDA’s testing covered purified, artesian, spring, and mineral waters across many brands, and the results suggest that bottled spring water as a category is not a significant source of PFAS exposure.
Arrowhead’s own water quality reports show nitrate levels well below federal limits. Lead testing has come back at zero in recent reporting periods. These numbers are reassuring, though it’s worth noting that bottled water in the U.S. is regulated by the FDA rather than the EPA, and companies aren’t required to publish results as frequently as municipal water systems.
The Environmental Controversy
The biggest criticism of Arrowhead has nothing to do with what’s in the bottle. It centers on where the water comes from and whether the company has the right to take it. In 2015, reporting revealed that the company (then owned by Nestlé, now operated by BlueTriton Brands) had been drawing water from the San Bernardino National Forest using a permit that had technically expired in 1988. That sparked investigations, lawsuits, and a cease-and-desist order from California’s State Water Resources Control Board in 2023, which accused the company of unlawfully diverting spring water without valid water rights.
In 2025, a Fresno County judge overturned that order, ruling the water board had overstepped its authority and misapplied state law. But two other lawsuits remain active, including one tied to the U.S. Forest Service’s denial of the company’s permit application. The Forest Service ordered BlueTriton to shut down its pipeline and infrastructure in the national forest, and the company is challenging that decision in court.
For many consumers, this is the real issue with Arrowhead. The water itself is safe to drink, but the sourcing practices have drawn sustained criticism from environmental groups and California regulators. Whether that factors into your purchasing decision is a personal call, but it’s the reason Arrowhead generates more controversy than most budget spring water brands.
Is It Worth Buying?
From a pure health standpoint, Arrowhead is fine. It hydrates you. It contains small amounts of naturally occurring minerals. It meets federal safety standards. It’s not meaningfully better or worse for your body than most other spring waters at the same price point. The differences between budget spring waters are marginal enough that your choice probably comes down to taste preference, price, and how you feel about the brand’s sourcing practices rather than any measurable health impact.
If you’re drinking bottled water because you’re concerned about your tap water quality, checking your local water utility’s annual quality report is a good first step. In many U.S. cities, tap water matches or exceeds the mineral content and safety profile of bottled spring water, at a fraction of the cost.