DENVER (AP) — Two companies that were contractors at the now-defunct Rocky Flats nuclear weapons plant have been ordered to pay $925 million to residents who claimed contamination blown from the facility endangered people's health and devalued their property.

Dow Chemical Co. on Tuesday denied wrongdoing and said it will appeal. The other contractor, Rockwell International Corp., has in part been purchased by Boeing Co., which said it had no liability for the site.

A federal judge on Monday ordered Dow to pay $653 million and Rockwell $508 million in compensatory damages, but capped the amount to be collected at $725 million. Dow and Rockwell also were ordered to pay exemplary damages of $111 million and $89 million, respectively.