pond of murky, light brown water in a quarry or excavation site

pond of murky, light brown water in a quarry or excavation site. Two people are visible, standing near the edge of the pond, near piles of light-colored rock and dirt. They appear to be working or sifting through materials. A small island of reddish-brown dirt is in the foreground within the pond. In the background, there are unfinished brick buildings on a higher level, set against a bright, clear sky. The environment looks sunny and arid.