Burrill was elected coadjutor bishop of Rochester on November 5, 1983, after 18 ballots during a special convention which took place in Christ Church in
Corning, New York. He was consecrated on April 26, 1984, by Presiding Bishop
John Allin in the
Cathedral of the Sacred Heart in
Rochester, New York. He succeeded as diocesan bishop on July 1, 1984, upon the retirement of
Robert R. Spears Jr. He remained in Rochester till 1999 after which he served as Assistant Bishop of the
Episcopal Diocese of Arizona. He was also Bishop-in-Residence at All Saints' Church in
Phoenix, Arizona. ==Personal life and death==