Specifications include, but are not limited to: construction materials testing services for projects and activities located throughout the State. Qualified providers must own/operate a construction materials laboratory that is accredited by the American Concrete Institute (ACI) and have a laboratory or office where NHDES can drop off samples within one hour of Concord, NH. Field technicians performing work associated with this Agreement shall hold a valid ACI accreditation, be trained in American Society for Testing and Materials (ASTM) D6938 testing methods, and be a direct employee of the successful bidder.; Task orders assigned under this Agreement may include the following ASTM laboratory and field testing: C117 (aggregate sieve analysis fines), C136 (aggregate sieve analysis), D6913 (sieve/hydrometer analysis), D4318 (Atterberg Limit), D698 (laboratory compaction), D1557 (modified Proctor), D2434 (constant head permeability), D3080 (direct shear – consolidated, drained), D5084 (hydraulic conductivity), D2974 (organic content), D7012 (rock sample compressive test), C39 (compressive strength), D6938 (nuclear density), C31 (concrete test samples), C138 (unit weight), C143 (slump), C173 (air content), C1064 (temperature), C1611 (selfconsolidating concrete slump), C1758 (self-consolidating concrete test samples).