PepsiCo Inc. will spell out that its Aquafina bottled water is made with tap water, a concession to the growing environmental and political opposition to the bottled water industry.

the world's No. 2 beverage company will include the words "Public Water Source" on Aquafina labels.

Pepsi's Aquafina and Coca-Cola Co's Dasani are both made from purified water sourced from public reservoirs, as opposed to Danone's Evian or Nestle's Poland Spring, so-called "spring waters," shipped from specific locations the companies say have notably clean water.

Concerns about the bottled-water industry, and increasing corporate control of water, are growing across the country," said Gigi Kellett, director of the "Think Outside the Bottle" campaign, which aims to encourage people to drink tap water.

Critics charge the bottled water industry adds plastic to landfills, uses too much energy by producing and shipping bottles across the world and undermines confidence in the safety and cleanliness