The Suffolk County Water authority is asking customers to reduce how much water they're using as it surges to a new high amid the extreme heat.

Water authorities from both Nassau and Suffolk counties say that rising water usage may put people at risk.

Joe Pokorny, with the Suffolk County Water Authority, says water usage broke records Monday.

Pokorny blames increased demands on more and more people using sprinkler systems.

"Monday morning is our biggest pumping day. It's the day people are coming off the weekend," he says. "A lot of people don't run their irrigation systems on Sunday because they're having family get togethers."

Water officials are asking people to cut back, especially during peak hours between 3 a.m. and 7 a.m.

Richard Passariello, with the Long Island Water Conference, says increased demand reduces water pressure, which is a matter of safety.

"We want to make sure that during the peak demand where people are turning on their sprinkler systems and we're maxing out our capacity to supply water, that if there is a fire during that time that the fire department has adequate pressure to fight that fire," he says.