This homes sewer backed up in the downstairs bathroom and in the storage room due to a clog in sewer line, the home owners were there and acted quickly by calling us. There was standing Cat 3 sewage water through out the basement. You should avoid all contact with sewage items that are contaminated. Also, you can spread contaminated water by walking unnecessarily on damaged or wet areas. Our crew worked late into the night to extract all water, clean contents that could be saved on site and dispose of items that could not be saved due to cat 3 sewage loss.