Which of the following is NOT included among the 14 categories that must be identified on the site map?

The correct choice indicates that 'storage areas for packaging materials' is not listed among the 14 specific categories that must be included on the site map as part of the stormwater management plan. The focus of the site map's requirements is on identifying elements critical to understanding and managing stormwater discharges effectively.

The 14 categories typically emphasize features that directly influence water quality and the management of stormwater, such as discharge points and the characteristics of surrounding waters. Stormwater discharge points are vital since they illustrate where runoff enters the water system, while the areas of exposed and/or erodible soils are critical for assessing potential erosion and sedimentation risks. Additionally, knowing the name and location of receiving waters helps to inform how the site's activities might impact natural water bodies.

In contrast, while storage areas for packaging materials are relevant to general facility operations and may be included in broader environmental assessments, they do not directly relate to stormwater management. Thus, they are omitted from the specific categories that must be included on the site map, which focuses primarily on features that significantly impact stormwater quality and discharge management.