Three teenage girls face assault charges in the wake of a February beating that left an Enumclaw 19-year-old with chipped teeth and a twice-broken nose.

News of the assault, which occurred Feb. 3, came into public view last week when the King County Prosecutor’s Office filed charges. Two sisters, ages 16 and 14, were charged with second-degree assault; a third suspect, 15, was charged with fourth-degree assault.

An Enumclaw Police Department spokesman said few details can be provided because minors are involved. But documents filed through the Juvenile Department of King County Superior Court provide the following account, the result of police investigation and an interview with the victim.

Police suspected something was brewing the afternoon of Feb. 3 after receiving an anonymous report about a fight being arranged for an isolated spot on the trail that runs north from Battersby Avenue. A group of young people, including the sisters, were contacted three times by police; after eventually confirming a fight was planned, there were warned against participating.

But, at 5:17 p.m., the fight had occurred, the victim was at home and both police and medical aid had been summoned.

Interviewed by an officer the following day, the 19-year-old said she had been walking on the trail with a friend when she encountered a group of teens. When the 16-year-old suspect challenged her to fight, the victim said she refused and was assaulted when she turned to walk away.

The victim said she eventually was punched and kicked by both sisters and had her face slammed into a boulder. One of the suspects, it was reported, held the victim’s face in a puddle of water and threatened to drown her.

It was reported the 15 year old occasionally joined in, punching and kicking the victim four times. A fourth teenage girl was said to be involved but has not been charged.

The three suspects are to be arraigned at 1:30 p.m. March 22 in King County Juvenile Court.