Department officials say the rusty water was due to crews performing maintenance on the water distribution pipes.
Filter systems should be checked for clogging by rust.
Customers can flush their cold water taps to make sure that rust has not accumulated in the plumbing.
Officials say rusty water is not considered a health concern but it can be a nuisance.
However, customers with health concerns should contact their health care provider before drinking or using the water.
Customers can also call the Water Department's emergency hotline at 215-685-6300 with any questions.