Arsenic occurs naturally and is found in rocks and soil before being released into water supplies through erosion. Certain industrial practices, such as the production of paints and dyes, metals, soaps, drugs and wood preservatives, have the potential for releasing arsenic into the environment as a byproduct of the process.
According to the company’s website, American Water (AW) has been maintaining high-water-quality standards, dependable service, and finding ways to do it better since 1986. The country’s largest investor-owned water and wastewater utility company, AW serves the needs of 16 million customers in more than 1,600 communities across the United States. Arizona American Water, a wholly-owned subsidiary of America Water, is the largest investor-owned utility in Arizona, serving a population of approximately 350,000 in northwest Phoenix.