. >> we've isolatedai folksreacinerce thear aecse of the low pressure situation, contaminates can get into the pipes and so we have a boil water advisory in place for the next 36 to 48 hours. >> reporter: spokesn are stressing at this point they have not found contamination but still want folks to boil water and to be very careful just in case. to make sure you are included in all that you can go to wssc, they have a map and you can put in your address and see if your home was actually impacted and you are among the folks who need to boil water. they a expeg last midday friday. more on how they are dealing with the water advisory in prince george's county. >>> and the flooding aftermath is just limited to our suburbs in southern maryland. check out this bridge. flood waters washed away a huge chunk of the bridge. in fact you can see right through it. >>> the baltimore area hasn't gotten that much rain in 80 years not since 1933. so much rain fell it turned a parking lot at bwi airport into a swimming pool. now travellers are coming home to find cars flooded with water, covered in mud