PULLMAN, Wash. – The City of Pullman said Wednesday that they have tested water samples from the main break that happened on Tuesday and the boil water order remains in effect until further notice.

Officials said they could have the results of the tested samples possibly by Noon on Thursday. A boil water order was put in place Tuesday shortly after the water main broke on North Grand Avenue. City leaders said the order was a method of precaution to prevent the risk of illness.

It was around 5:00 a.m. Tuesday when the water main broke on North Grand Avenue just in front of Dissmore’s. Crews isolated a 12-inch diameter section where the break occurred.

READ: Boil water order issued for Pullman after main break

As a result of the break, officials said some water tanks on College Hill and Military Hill were drained to very low levels, resulting in low, or no water pressure at homes and businesses in the area. Officials said they have been refilled by Wednesday because residents did a good job of conserving water.

The Superintendent said that business and residents located on College Hill and Military Hill who are on the city’s water system should boil their water used for drinking, brushing teeth, preparing food, making ice and washing dishes, or use bottled water until further notice.

Many of the businesses in the area have had to shut down but some of them opened up on Wednesday but had to serve bottle water.

"It's difficult because we need to open a lot of bottles of water, but it's okay," owner of the Mexican restaurant, Nuevo Vallarta, Irma Pena said.

The restaurant has had boil water they use to prepare food and could only use ice they bought in a bag.