The FDA has issued a recall for bottled water in Arkansas after an unspecified contaminant was found.

According to a press release, Mountain Pure Water has announced a voluntary recall of bottles marked with a four-digit military time code from 2200 through 0400 etched into the plastic.

Also included is an expiration date code that reads “Best By 2-27-2013 MPWA” or “Best By 2-28-2013 MPWA.”  These are bottles of purified drinking water in the 16.9 fluid-ounce (506ml.) size. It is recommended that anyone who might have purchased or received any of this bottled water dispose of it or return it to the point of purchase or distribution.

William L. Mason, MD, MPH, branch chief for the Preparedness and Emergency Response branch at the Arkansas Department of Health, said it is unlikely that a healthy person would become ill from drinking this water.

“People with a weakened immune system might be at higher risk,” he said. “Anyone who thinks they may have become ill after drinking this water should consult a physician.”