Source: The Great Interpretation of Dreams (Ibn Sirin)
Murky or turbid water in a dream indicates worry, grief, illness, hardship, and difficulty in living. Drinking it indicates falling into strife or illness.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
Murky water indicates unlawful money or a miserable life. Swimming in it indicates wading into strife.
Source: Signs in the Science of Expressions (Ibn Shaheen)
Murky water is interpreted as worry, grief, and illness. Whoever sees himself drinking it will be afflicted with worry.