TRENTON - A boil water advisory has been partially lifted for customers of Trenton Water Works.

Officials say water quality testing shows the water quality to be safe for Hopewell and Lawrence townships and Trenton residents also no longer need to boil their water.

However, residents are still urged to run their faucets for three to five minutes, flush their service connection, empty and clean their automatic ice makers and water chillers and to drain and refill their hot-water heaters if the temperature is set below 113 degrees Fahrenheit. They are also advising that water reservoirs in tall buildings should be drained and refilled.Residents in Ewing are still being advised to boil their water, pending results from testing.

State senators Tom Goodwin and Shirley Turner are calling for an investigation into the Trenton Water Works' failure. They sent a letter to the president of the state's Board of Public Utilities and the commissioner of the state's Department of Environmental Protection.

Thousands wait for water test results after advisoryBoil water advisory in effect for Trenton area