If you are wondering why is black water coming out of the tub faucet and why there is a lot of sediment in your water, there can be several reasons. Here are a few possibilities:
If the pipes in your home are old or made of a material that corrodes easily, it's possible that the sediment you're seeing is coming from the pipes themselves. If there has been a recent water main break in your area, it's possible that sediment has been stirred up and is now flowing through the water supply. If there is construction or other disturbances happening in your area, it's possible that sediment has been kicked, interacting with your well, and making your well water black all of a sudden. You can contact your local water utility to see if they can provide more information about the cause of the issue.