Portland police say the man caught on video urinating in the Mt. Tabor Reservoir system -- a small moment of vandalism that has prompted city leaders to say they'll flush 38 million gallons of water -- was 18-year-old Dallas Jeffrey Delynn of Southeast Portland.

Police reports released Thursday show that Portland officers responded at 1:30 a.m. Wednesday to a report of three men inside Mount Tabor Park after hours skateboarding. One urinated in the reservoir, the report said.

The police report says officers found three men leaving the park: Delynn, of the 8600 block of S.E. Morrison St., 19-year-old Trey Michael McDaniel, of the 30000 block of Bachelor Flat Rd. in St. Helens, and 18-year-old Daniel Delynn McDonald, of the 400 block of S.E. 141st St. in Portland.

Delynn, McDaniel and McDonald were all given written citations on accusations of trespassing and barred from Mt. Tabor Park for 30 days. Delynn was also cited on an accusation of unlawful urination in a public park. The men were not arrested.

Water Bureau officials have said they will discuss other potential charges with the Multnomah County District Attorney.

Video from a security camera at Mt. Tabor shows one man urinating into the reservoir, two attempting to climb the fence and one eventually succeeding. The trio appear to celebrate the successful ascent by taking cell-phone photos.

“We intend to prosecute to the full extent of the law,” Commissioner Nick Fish, who oversees the Water Bureau, said Wednesday. “This is not acceptable behavior.”

A man who urinated in the reservoir three years ago was sentenced to 24 hours of community service after pleading guilty to a misdemeanor charge of misusing a reservoir.