HALLOWELL — A 15-year-old boy from Franklin County died Wednesday after he jumped in the pond at the Hallowell Quarry.

Officials say the youth, Koa Dumont, of Farmington, and three friends had traveled to the pond to go swimming on a hot day, when he jumped in the water from a ledge about 15 feet high, landed awkwardly in the water, surfaced briefly, struggled to swim and went under again and did not resurface.

On Thursday, those who knew Dumont posted about him on social media.

Among them is a post on the Facebook page of Titcomb Mountain, a small ski area in Farmington, noted Dumont’s passing, saying: “Our heart aches for the loss of one of our communities’ most amazing youth. Titcomb is one big family and we all send our most sincere condolences to the Dumont family. Koa lived life to the fullest with no regrets and a passion to seize the day!”

Dumont was on the ski team at Mt. Blue High School, where he was a rising sophomore who has been listed several times in the newspaper as an honor roll student.

In a communication sent to Regional School Unit 9 families and staff Wednesday night, the district’s crisis team announced Dumont’s death, offering condolences to his family and friends and noting the Mt. Blue campus had counselors and social workers available for any students or staff that need support. The counselors were available Thursday morning and will be available again Monday from 9-11 a.m.

“It is with profound sadness that we share the tragic news of (Dumont’s) passing,” the communication stated. “Our hearts go out to family and friends during this incredibly difficult time.”

The communication also included phone lines where people can get additional support: Sweetser/State Crisis Hotline, text or call 988 or 888-568-1112, or Teen Support Text Line, 207-515-8398.

Elsewhere in Maine, public safety officials, including the Warden Service and the Maine State Police, responded early Thursday to Union following the report of a woman who was missing after going out on Crawford Pond. A body was found at dawn by a searcher. State police are investigating.

Hallowell police Chief Christopher Giles said Wednesday the 911 call was made about 1:30 p.m., bringing police, the Maine Warden Service and area fire and rescue personnel.

The air temperature was 88 degrees, Giles said, but he didn’t know what the water temperature was.

Maine Warden Service Sgt. Josh Beal, speaking at the scene Wednesday evening, said when the location where the teen had jumped into the water was identified, the dive team was able to recover the body.

He was found in 25 feet of water around 5:40 p.m. Wednesday.

“Quarries are popular areas for people to swim,” Beal said. “Unfortunately, across the state, we’ve had accidents happen at quarries due to the high ledges and the deep water that they land in.”

Quarry Pond, located off Winthrop Street, is ringed by steep ledges and the water is 30 to 50 feet deep.

Giles said the pond is on private property and the owner does not allow recreational swimming there. The pond where the boy was swimming is one of two quarry ponds on the site, the one closest to Winthrop Street. The site has been popular with swimmers for decades.

City property tax records indicate the property is owned by Granite City Corp., which is owned by Leonard Nason Jr.

“It’s not uncommon for people to disregard his wishes,” Giles said, noting that when no-trespassing signs are posted, they are torn down. “It’s an area that’s frequented by a lot of young people.”

Giles said the teens weren’t doing anything out of the ordinary from what a kid would be doing to play in the water.

“It’s tough to make sense of it,” he said.

Giles said there were no indications of foul play.

“When something like this happens, it affects a lot of people,” Beal said. “There’s friends involved. Obviously there’s family involved, key people in the community and school systems. It’s a tragedy for a wider ring than just the immediate family.”

The incident remains under investigation, Beal said.

The youth was taken to the Office of Chief Medical Examiner in Augusta.

In addition to the Hallowell Police Department and the Maine Warden Service, Augusta Fire and Rescue, Hallowell Fire, and Manchester Fire also responded. Officials used an aerial drone, boats, and tried free-diving to recover the body, but were unsuccessful, until the dive team was able to recover his body.

Staff photographer Anna Chadwick contributed to this report.

This story will be updated.