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Member’s Mark Water Test is a purified water mineral enhanced for flavor and better taste. Member’s Mark passed its purification through reverse osmosis.

Member’s Mark Water Test
Member’s Mark Water Test

According to the product information, Member’s Mark purified water hydrates your body, especially after a workout. The company ensures, that this purified bottled water is tastier than tap water, more convenient than filtered pitcher water. These mini plastic bottled waters are great for any event. 

Member’s Mark water bottles are not BPA free since Niagara bottling company manufactures premium drinking water products. All bottles are produced using PET (polyethylene terephthalate) plastic, and High-Density Polyethylene (HDPE). This is a food-grade plastic that is approved by the US FDA (U.S. Food and Drug Administration) for its use in many types of food containers.

Warning: Cap is a small part and poses a choking hazard, particularly for children. 


  • Purified water
  • Calcium chloride
  • Sodium bicarbonate

Member’s Mark Water Test Results

Member’s Mark Water Test Results – TDS and pH

When we tested Member’s Mark bottled water, we found that the Total Dissolved Solids (TDS) content in the water was 29 ppm. According to the US EPA’s TDS Results Chart, the TDS contents 0-50 ppm is micro-filtered and distilled water, with low mineral content. 

Member’s Mark Water Test Results
Member’s Mark Water Test Results

The pH balance in the water was 6.5. The watercolor during the pH test turned to a light green color. That means Member’s Mark bottled purified water is neutral water.

Distributed by Sam’s West, Inc Bentonville, Arizona. 

Bottled by Niagara Bottling LLC, Ontario, California. 

For question or a report on water quality and information, please contact: 877 ITS-PURE

Barcode: 078742053554

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