Some Philadelphia residents have been advised to not use their tap water following a chemical spill in Bristol.
The spill, which occured in Otter Creek, occured on Friday.
The US Coast Guard said that around 8,100 gallons of latex finishing material had been released into the creek by Saturday afternoon, with the potential for the figure to climb to 12,000 gallons.
Read more: Coast Guard responds to hazardous material leak in Pennsylvania creek
The Philadelphia Water Department said that the spill could potentially affect water treated at the Baxter Drinking Water Treatment Plant.
On Sunday, the department said that no contaminants had so far been found in its tap water system, but that residents in the impacted areas may want to switch to bottled water "out of an abundance of caution".
Residents can find out if they live in an impacted area here.
The source of the spill is believed to have been a burst pipe at Trinseo, a chemical plant in Bristol.
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The Philadelphia Water Department says tap water is safe to drink in the city until midnight on Monday.
Coast Guard personnel asked the public to stay away from the area while cleanup operations are underway.
Mayor Ed Gainey said: “I would like to thank everyone for their patience as PWSA crews work diligently to finalize repairs and to restore service to those impacted by the water main break yesterday.
"I appreciate all the hard work they have done to repair the water main as well as activating to make sure residents had access to water during this time.
After service is restored the boil water advisory will remain in effect until all testing is completed for public health and safety."
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