16. For purposes of its reclamation as a residual granular material, a residual material may not contain(1) firebrick, asphalt shingles or roof gravels coated with bituminous compound;
(2) asbestos or lead paint;
(3) reinforcing metal in a size exceeding that of the residual granular material;
(4) where it comes from land for which a characterization pursuant to Division IV of Chapter IV of Title I of the Act or a voluntary characterization has been performed, contaminants identified by the characterization and not listed in tables 1 and 2 of Schedule I to this Regulation, except in the case of a category 4 material.
Neither may it be(1) a hazardous material; or
(2) mixed with soil, except(a) for the purpose of using the technique to pulverize asphalt;
(b) where the mix is required for the type of use determined in the plans and specifications signed and sealed by an engineer;
(c) where the mix is made for the purpose of obtaining a particle size that complies with BNQ Standard 2560-114.