School district entered into contract for cell tower on school property within feet of building for elementary. District didn''t inform parents.

According to the American Cancer Society, there is no evidence that exposure to cell towers causes cancer or any other illness.  http://www.cancer.org/Cancer/CancerCauses/OtherCarcinogens/AtHome/cellular-phone-towers Do you have evidence showing causation?  If not, what is the real concern?  Also, I am not aware of any statutory or regulatory duty for a school district to consult with or inform parents about the use of its real property.  In fact, the generation of $1,200 in rental income per month should be considered a financial benefit of the district that the students and parents enjoy indirectly.