The New Mexico police's dive team has members from Albuquerque, Roswell, Hobbs, Deming, Raton and one of the divers Joe Schake is a Farmington native, Bender said.
The divers could only stay under for about 20 to 30 minutes at a time because the water temperature was between 38 and 42 degrees, he said.
The divers wore dry suits to keep their core temperature stable but they quickly lost dexterity in their fingers because of the water temperature, Pierce said.
The lake is at 7,700 feet above sea level which can complicate how the diver reacts to the oxygen, helium and nitrogen combination in their air tanks, Pierce said.
The divers went as deep as 40 feet below the surface, where visibility was about seven or eight feet, Bender said.
Diving into Vallecito Reservoir in those conditions "is an instant headache," said Jesse Kuzma, a master scuba instructor and the owner of Trinity Diving, a scuba-diving school in Aztec. "They are going through some tough times."
Kuzma, who trains with the state police divers, said they are experienced at diving in high-altitude, cold-water lakes.
"We know what they're going through," Kuzma said. "And (scuba divers) avoid those conditions as much as possible."
http://www.daily-times.com/ci_22071476/colorado-boy-still-missing-after-two-day-underwater