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[[File:PSD sand.jpg|thumb|Particle size distribution graph for ASTM C33 sand, as described in table]]
[[File:PSD sand.jpg|thumb|Particle size distribution graph for ASTM C33 sand, as described in table]]
−*Coarse sand for LID construction shall be washed clean and free free of toxic materials.
+*Coarse sand for LID construction shall be washed clean and free of toxic materials.
*The pH of the sand shall be ≤ 7.0.
*The pH of the sand shall be ≤ 7.0.
*Manufactured sand from limestone or dolostone parent material is not acceptable.
*Manufactured sand from limestone or dolostone parent material is not acceptable.