Washington Gov. Jay Inslee and King County Executive Dow Constantine have asked British Columbia Premier Christy Clark to ensure that a stalled sewage treatment project for Victoria moves forward.

In a letter Tuesday the Washington political leaders said they were "dismayed" that Victoria still lacks any treatment beyond screening and that the raw sewage flows into the Strait of Juan de Fuca, which connects to Puget Sound.

The letter reminds Clark of a tourism boycott in 1993 over the issue. There was an agreement to have sewage treatment in place by 2013.

Plans were delayed and last week a deal for a treatment plant fell apart. The letter says it's a significant concern.