15 kilometers (about 9 miles), off the coast of Fujairah and Khor Fakkan in the United Arab Emirates is a popular tanker parking lot.

There is no issue with this, until you consider the fact that it appears to be the cause of persistent pollution problems for the UAE. There have been 4 spills in the past 3 months and local communities are getting fed up as these spills impact both local businesses and the environment.
This image, collected on May 24, by the European Space Agency’s Sentinel 2 satellite shows the Nordic Jupiter, one vessel which was anchored offshore as well as oil slicks visible on the surface of the water. While we don’t know if the Nordic Jupiter is the source of this slick, it seems likely based on this image.

Occasional overflights by enforcement agents would be more than sufficient to police this parking lot, to deter future dumping, and to catch violators.