The name of the company is The Catalina Water Company. I just called them and they certify that the water comes right out of the pacific ocean.
"100% Real Ocean Saltwater for Home and Commercial Aquarium Applications"
"Catalina Water Company has developed a state-of-the-art filtration system that combines the use of oxygen (O2) converted into ozone (O3) and UV Sterilization. This destroys any bacteria or harmful microorganisms and, when used in conjunction with charcoal and sand, it will remove any heavy metals and toxins. This system eliminates any possibility of contaminants in the water. Our tanks circulate 24 hours a day – 7 days a week. Once the water has passed through our filtration system, we have a highly consistent product that can be used with confidence.
Our saltwater is tested daily to ensure the quality and consistency of our product. We also employ an independent laboratory to conduct periodic analyses of the water and our facility for on-going quality control."
This is from their web site
www.catalinawater.com