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Cmm Gravel And Sand

Cmm Gravel And Sand

SECTION 312323.13 BACKFILLING. Type A Coarse Stone, Crushed Rock or Gravel Free of shale, clay, friable material, sand, debris graded in accordance with the Engineers recommendations and a cleanness value of 75 or greater when tested in accordance with CMM Method No. California 227 or Class 2 material as specified in Section 28 of CALTRANS Standard Specifiions.

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