Immaculate Conception Church in Columbia is hosting its annual Blue Mass to honor all first responders (police, fire and EMS), remember those who have fallen and pray for their safety on Sunday, Sept. 22 at 9 a.m. All first responders are invited to attend and are encouraged to wear their uniforms. A reception will follow. First responders planning to attend are asked to call the parish office at 281-5105 by Sept. 18.