Specifications include, but are not limited to: WSDOT is seeking quotes for Winter Sand Material; . Maintenance sand shall be free from extraneous material, be naturally occurring, processed by scalping, screened, crushed or washed, round to sub-round in shape but preferable angular. Passing 3/8” Square Sieve 100%; Passing 1/4” Square Sieve 90% to 100%; Passing US No. 10 Sieve 40% to 75%; Passing US No. 40 Sieve 10% to 30%; Passing US No. 200 Sieve 0% to 5%; All percentages are by weight. Sand Equivalent: 60 minimum. To ensure quality of material after delivery, WSDOT may take random samples of the material. WSDOT will not pay for material that does not meet the specifications provided for in this solicitation. If any bidder has failed WSDOT random sampling tests in prior contracts, WSDOT reserves the right to reject the bidder’s bid.