A boil water advisory was issued for parts of Central Jersey, impacting schools, businesses and administrative offices.

Flemington police say this is not a widespread public health emergency. The boil water advisory is precautionary for Flemington Water Service customers in the borough of Flemington and parts of Raritan Township.

The NJDEP directed the borough to issue a boil water advisory until testing confirms the water is safe after a water main break during the Main Street reconstruction project on Wednesday around 1 p.m. It was fixed within a couple of hours.

The borough says the damage may have caused a drop in pressure, potentially allowing contaminants to enter the water.

The guidelines for a boil water advisory are to bring water to a rolling boil for at least one minute and then cool before consuming. Residents can also use bottled water.

The boil water advisory in Flemington won't be lifted today, as the lab testing results take 24 hours to come back. The director of public works says they'll wait for the results tomorrow and lift the advisory if everything looks good. But if the results aren't good, they'll do some additional flushing and more testing.

Hunterdon Central High School had an early dismissal. Students and staff were also told to bring their own water bottles to school.

Hunterdon County offices in Flemington worked remotely. The county Health Department is working with restaurants to ensure food safety.

The scheduled Main Street Water and Sewer Rehabilitation Project will take about five months to complete and traffic will be detoured as a result.