Some Lehigh and Northampton county residents will need to boil their water Monday.
That's because of water main breaks that happened over the weekend.
Officials say one break happened in the 3500 block of North Drive in Lower Saucon, Northampton County.
The other happened on Old Bethlehem Pike, on the border of Upper and Lower Saucon townships.
The cold weather is being blamed for the breaks.
Residents in Center Valley, and Upper Saucon Twps., Lehigh Co., and Lower Saucon Township, Northampton Co., are under the boil water advisory.
Bethlehem water officials said about 500 customers are affected by the advisory, and they were notified by the department's rapid response call system.
The breaks have been repaired, but the DEP requires a minimum of 48 hours of boiling water after this type of break.
Water officials said customers will again be notified when the boil water advisory is lifted.
For more information, visit Bethlehem's website or call Bethlehem Water Control at 610-865-7077.