13. (Recommended by Chief Administrative Officer) (Approved by General Manager and Chief Engineer) Approval of Contract No. 121 for Ready-Mixed Concrete and Trench Backfill Slurry with Associated Ready Mixed Concrete, Inc., for a term of one year with two one-year renewal options and an amount not to exceed $57,942,676. Determine item is exempt pursuant to CEQA Guidelines Section 15060(c)(3).