DES MOINES (AP) - Attorney General Tom Miller says the owner of two popular travel plazas has been ordered to pay $140,000 for water pollution violations.

The Flying J travel plazas in Davenport and Clive were ordered to pay the fine by Polk County District Court Judge Artis Reis.

Miller filed a lawsuit on Monday outlining environmental violations and unpaid citations at the two locations, including a March 2007 incident at the Clive location that polluted Walnut Creek. A settlement agreement was filed simultaneously.

Miller says the Davenport Flying J has also been the subject of numerous administrative enforcement actions by the Iowa Department of Natural Resources.

Flying J is one of the largest retailers of diesel fuel in North America, with approximately 220 locations in the U.S. and Canada.