THE MOUNTAIN VALLEY SPRING WATER
REVIEW

Mountain Valley identifies its source as Mountain Valley Springs in Garland County, Arkansas, in the Ouachita Mountains. The company states that the water is bottled at the source.STATUS: LOOKS GOODThe 2025 Water Analysis Report identifies a specific source rather than relying on a broad regional description.

The 2025 report lists naturally occurring calcium at 65–70 mg/L, magnesium at 6.1–7.2 mg/L and sodium at 1.7–2.5 mg/L. Total dissolved solids were reported at 210 mg/L, with a pH range of 7.3–8.1.STATUS: LOOKS GOODThis documented mineral profile helps explain the water’s fuller spring-water taste. It should not be interpreted as proof that the water provides broad medical benefits.

Mountain Valley publishes its Arkansas source, mineral profile, broad contaminant results, PFAS testing and treatment sequence. The brand is currently part of Primo Brands, created through the 2024 merger of BlueTriton Brands and Primo Water.STATUS: MOSTLY OPENThe 2025 report is more informative than many bottled-water reports. Remaining gaps include the ambiguous “UV and/or ozone” wording, limited operational detail and no disclosure in the report of the aluminum bottle’s liner composition.

The 2025 report describes four steps: filtered source water is held in a storage silo, microfiltered, disinfected with “ultraviolet and/or ozone,” and bottled.STATUS: MOSTLY OPENPublishing the treatment sequence is useful. However, “ultraviolet and/or ozone” does not tell consumers whether every batch receives UV, ozone, both treatments or different treatment depending on production conditions.

No reported result exceeded the applicable limit shown in the 2025 report. Arsenic, lead, mercury, selenium and uranium were reported as not detected at their respective reporting thresholds.Low measured amounts of substances including barium, chromium, nickel, manganese and naturally occurring radioactive constituents were reported below the limits shown.STATUS: LOOKS GOOD“Below the limit” does not mean contaminant-free or zero risk. It means the reported result did not exceed the applicable comparison standard presented in the report.

The listed perfluorinated compounds, including PFOA and PFOS, were reported as not detected at a 5 ng/L reporting threshold.STATUS: LOOKS GOOD WITH CONTEXTNot detected means the compounds were not measured at or above that reporting threshold. It does not prove that the water contains absolutely no PFAS, and a 5 ng/L reporting threshold cannot distinguish zero from a concentration below 5 ng/L.

Mountain Valley sells spring water in glass, aluminum and PET plastic containers, depending on the size and retailer. The featured 750 mL aluminum bottle is marketed as resealable and recyclable.STATUS: LOOKS GOOD WITH NOTESGlass provides an option for consumers who prefer to avoid direct contact with plastic bottles. Aluminum beverage containers generally require an internal barrier, but the 2025 water report does not identify the composition of the liner used in this bottle.

The report documents naturally occurring minerals and a pH range of 7.3–8.1. Those findings describe the water’s composition, but they do not establish superior hydration or broad health benefits compared with other safe drinking water.STATUS: CLAIM NOT ESTABLISHEDThe mineral profile may influence taste and may contribute small amounts of minerals. That is different from demonstrating that the product prevents or treats a health condition.