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| HUC | Name |
|---|---|
| 020700110101 | Piney Branch-Mattawoman Creek |
| 020700110102 | Marbury Run-Mattawoman Creek |
| 020700110103 | Powells Creek |
| 020700110104 | Quantico Creek |
| 020700110105 | Chopawamsic Creek |
| 020700110106 | Tank Creek-Potomac River |
