California farmers use a wide range of water resources to irrigate their crops. Some of this water is naturally generated from oil production. Rather than allowing this “produced water” to go to waste, it is carefully treated, tested and approved for agricultural use, highly regulated, and well within safe drinking water standards. To demonstrate its quality, fruit and nut testing was conducted and showed absolutely no difference whatsoever regardless of the water source. Wonderful Halos stands 100% behind our promise of “pure goodness.” Our Halos mandarins are nutritious, wholesome, and above all, safe for kids and families everywhere.