unaware, cynthia gossage went about her normal routine this morning. >> well, i brushed my teeth, i took a shower and i made coffee. >> reporter: make you nervous? >> a little. >> reporter: and it's important to say that wssc says there is no evidence that there was actual contamination. this is being done as a precaution because of the low water pressure. there are more than 45 schools in the area that have been affected. what we're told is that they are all open, business as usual, except the water fountains have been turned off and they have brought in bottled water for the kids and the staff. reporting live, megan mcgrath, news 4. back to you. >> thank you. >>> and with temperatures expected to climb near 90 degrees today, d.c. leaders decided to close woodson high school in northeast because of an air conditioning outage. it is not far from the prince george's county line. all other d.c. schools are open as scheduled. >>> definitely not a day to be without air conditioning, as you can see from this live camera. the sun is in and out of the clouds out there, but things are heating up