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The student voice of Washington State University since 1895

The Daily Evergreen

The student voice of Washington State University since 1895

The Daily Evergreen

The student voice of Washington State University since 1895

The Daily Evergreen

Water filtering through pavement is demonstrated with a square of permeable material. Water infiltrating instantaneously helps reduce runoff.

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The student voice of Washington State University since 1895
Water filtering through pavement is demonstrated with a square of permeable material. Water infiltrating instantaneously helps reduce runoff.