PepsiCo deliveryman Nick Jones unloads Aquafina water and other Pepsi products while making a 2006 delivery in Tualatin, Ore. The label on Aquafina water bottles will soon reflect that the drink comes from the same source as tap water.

New York ? So you thought that water in your Aquafina bottle came from some far-away spring bubbling deep in a glen?

Try the same place as the water in your tap.

PepsiCo Inc. is the latest company to offer some clarity about the source of its top-selling bottled water as it announced on Friday it would change the label on Aquafina water bottles to spell out that the drink comes from the same source as tap water.

A group called Corporate Accountability International has been pressuring bottled water sellers to curb what it calls misleading marketing practices. The group has criticized PepsiCo over its blue Aquafina label with a mountain logo as perpetuating the misconception that the water comes from spring sources.

Aquafina is the single biggest bottled water brand, and its bottles are now labeled “P.W.S.” The new labels will spell out “public water source.”

“If this helps clarify the fact that the water originates from public sources, then it’s a reasonable thing to do,” PepsiCo spokeswoman Michelle Naughton said Friday. Aquafina water is taken from public sources then purified in a seven-step process.

The corporate accountability group is also pressing for similar concessions from The Coca-Cola Co., which owns the Dasani water brand, and Nestle Waters North America, seller of Nestle Pure Life purified drinking water, which gets some of its water from municipal sources.

Dasani’s Web site says that Dasani comes from local water supplies, is filtered using a process called reverse osmosis and enhanced with minerals.

“We don’t believe that consumers are confused about the source of Dasani water,” Coca-Cola spokeswoman Diana Garza Ciarlante said. “The label clearly states that it is purified water.”