Specifications include, but are not limited to: 1. All material must be certified to not degrade the environment nor create health hazards. 2. Aggregate must originate from a Pennsylvania Department of Transportation (PennDOT)-qualified quarry source. Quarry source must be approved for the production of C2A, as listed in PennDOT Bulletin 14. 3. Wearing course material must be structurally durable so that weathering and traffic loads do not result in the creation of dust, sediment, or pollution. 4. All driving surface aggregate is to be derived from natural stone formations. a) Stone is defined as rock that has been crushed; rock is defined as consolidated mineral matter. b) For use in this program, both are restricted to that which has been mined or quarried from existing geologic bedrock formations. 5. All components of the aggregate mix are to be derived by crushing parent rock material. 6. LA Abrasion Less than 45% passing. Los Angeles Abrasion test, AASHTO T-96 (ASTM C 131) will be used to determine this property. 7. The Plasticity Index (PI) of the DSA must be a maximum of 4. The laboratory test required for these results is the ASTM D4318 – Standard Test Method for Liquid Limit, Plastic Limit, and Plasticity Index of Soils. 8. Aggregate must be within the range of pH 6 - pH 12.45 as measured by EPA 9045C. 9. Material is to be delivered and placed at optimum moisture content, or up to 2% below that value, as determined for that particular source. The optimum percentage moisture is to be determined using Proctor Test ASTM D698, procedure C, Standard. 10. DSA must be properly mixed and at the proper moisture content before it is loaded onto the transport vehicles. 11. Tarps are to be used to cover 100% of the load's exposed surface from the time of loading until immediately before dumping, including standing time waiting to dump.