STEWARTSTOWN -- A waterline project in Stewartstown caused some residents' tap water to temporarily turn milky and brown.

The Stewartstown Borough Authority is in the middle of a waterline replacement project on High Street between Ovelton Avenue and Memory Lane. On Monday, workers shut down water service to customers living at 22 to 55 High St. in order to connect the new water main with an existing one at Memory Lane, water/sewer supervisor Ira Walker Jr. said Wednesday.

The shutoff caused some water discoloration, the possibility of which was explained in a letter the borough hand-delivered to residents prior to the construction, he said.

"The brown water is from suspended iron particles in the water, which does build up in the water mains. The milky water is actually (caused by) air in the line," Walker said.

Such changes in the water are typical when lines are turned off, he added.

"Anytime when improvements are being made to the infrastructure, whether it's water or sewer, there are bound to be problems which may cause an inconvenience to our customers. For that we apologize," Walker said.

The High Street project is expected to be completed in two weeks. It is the final phase of a three-part project that also involved waterline upgrades to Winters Avenue and Mill Street.