A 30-year-old Norwood woman surrendered Monday on charges of having inappropriate contact with a 17-year-old male that included the exchange of sexually explicit photographs as recently as Feb. 17. Melissa Givens, a Norwood EMT who is married to the chief of the Norwood Fire Department, is free on $300,000 unsecured bail set by Magisterial District Judge Gregory Loftus at a preliminary arraignment Monday afternoon, according to authorities and online court records.