In addition to the waste analyses required by section 11-265-13, the owner or operator must analyze a representative sample of waste from each incoming movement before adding the waste to any existing pile, unless:
The analysis conducted must be capable of differentiating between the types of hazardous waste the owner or operator places in piles, so that mixing of incompatible waste does not inadvertently occur. The analysis must include a visual comparison of color and texture.
Haw. Code R. § 11-265-252