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philadelphia water department
Treatment plant finder

Image: Belmont drinking water treatment plant

Where is your drinking water treated?


Philadelphia has two rivers that provide our drinking water: the Delaware and the Schuylkill. 

But after the water flows into our city from these rivers, where does it go next? 

Treatment plant 2

Drinking Water Treatment Plants: an important early step in water’s journey.

Three plants serve our city:

  • Baxter in Northeast Philadelphia 
  • Queen Lane in Northwest Philadelphia 
  • Belmont in West Philadelphia 

Hundreds of millions of gallons of top-quality drinking water are treated every day before entering our water mains for distribution.  


treatment map

We test our treated water for about 100 different contaminants, ranging from organisms like bacteria to chemicals like nitrate.

Regardless of where your drinking water is treated, the people at all three of our plants follow rigorous safety standards and provide 24/7 monitoring to ensure we serve high-quality water.


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This email is part of a new series highlighting sections of our latest Water Quality Report. We're following your drinking water's journey from the source to your tap.