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1
Poquessing Creek

2
Pennypack Creek

3
Delaware River

4
Tookany/Tacony-Frankford Creek

5
Wissahickon Creek

6
Schuylkill River

7
Cobbs Creek

8
Darby Creek

Figure
Philadelphia Drinking Water Treatment Plants

1
Baxter

2
Queen Lane

3
Belmont

Figure
Drinking Water Treatment Process

1
Natural sedimentation

2
Chemical addition

3
Flocculation

4
Sedimentation

5
Filtration

6
Final chemical treatment