There is category 2 water. This water is known as grey water. This water is not safe to drink. Some examples of category 2 water would be if a washing machine broke and the soapy water got all over the carpet. Another one would be a flushed toiled that overflowed that had urine in it but not any feces. In most cases if this water got all over the house all porous contents must be removed. This is dirty water and even if we dried it out your house is now filthy.
The last category water is category 3 water or black water. Things like sewer backups, storm water, toilet overflows with feces, and moldy water are considered category three water. If you have this water in your house the only thing to do is to remove all porous contents. We hope you never have a water damage but if you do then make sure you call us as soon as you can; timing is everything in water damages.