Sammamish residents will likely have to dish out more money for stormwater fees over the next six years in order to keep up with federal regulations.

The city has proposed to raise its rates from the current rate of $150 a year for a single-family home to $177 in 2013 — the first increase since rates were raised eight years ago.

“The City of Sammamish, like so many other cities in western Washington are faced with very stringent requirements coming from the National Pollution Discharge Elimination System permit issued by the Department of Ecology,” said Laura Philpot, Public Works director. “Slowly the various requirements have been phased in.”

Under the proposed increase, the monthly fee will increase from $12.50 to $14.75 in 2013. Annual fees would then increase to $203.55 in 2014, $208.64 in 2015, $213.85 in 2016, $219.20 in 2017 and $224.68 in 2018.

Developers will see the largest impact of the rate hikes. They currently pay a one-time fee $570 for every new residential dwelling unit or commercial building with up to 2,500 square feet of impervious coverage. That number would increase to $1,491 in 2013 — an increase of $921.

The proposed increase would put Sammamish at the highest such fee, ahead of the next closest Bellevue, which sits at $1,200.

Additional revenue will go towards two hiring new employees — one dedicated to inspecting all stormwater facilities within Sammamish and another in the maintenance group.

The City Council will vote on the proposed rate increases at the City Council’s next meeting, 6:30 p.m., Nov. 19.