Fire Department Administration

Acting Fire Chief Ryon Dierck

Ryon Dierck’s career in the fire service began in 2008 when he was hired as a full-time firefighter by Kern County Fire Department.  He spent 13 years protecting the citizens of Kern County while holding the ranks of Firefighter, Fire Engineer, and Fire Captain.  He was hired by the Montclair Fire Department as a Fire Battalion Chief in 2020.  During his tenure with the Montclair Fire Department he has managed the department's Training Division as well as the department’s Operations Division.  Chief Dierck was promoted to Assistant Fire Chief in 2023 where he served the citizens of Montclair providing strategic management of the Fire Department under the Fire Chief’s direction.  In 2025, Chief Dierck was made Acting Fire Chief of the Montclair Fire Department. 

Chief Dierck holds an Associate’s Degree in Fire Technology, a Bachelor of Science Degree in Mechanical Engineering from University of California Santa Barbara, and a Master's Degree in Business Administration with a focus in Management.  He is a certified Chief Fire Officer, as well as a Certified Executive Chief Fire Officer through California State Fire Training.  He also holds certifications as a Hazardous Materials Specialist, Swift Water Technician, Confined Space Technician, as well as a Hazardous Materials Incident Commander.

Battalion Chief Thomas Dowser

Thomas Dowser’s career in the fire service started at the Montclair Fire Department in February of 1992 when he was hired as a firefighter after a year of serving as a reserve firefighter. In 1999 he attended paramedic school at the Paramedic Training Institute and went on to assist in the formation of the city’s paramedic program. He was also one of several individuals to begin providing immediate staffing for the program. He was promoted in 2006 to Fire Engineer and again in 2009 to Fire Captain. Tom Dowser currently serves as a Fire Battalion Chief for the Montclair Fire Department overseeing the department’s emergency medical services.

Battalion Chief Thomas Nicoll

Thomas Nicoll’s fire service career began in 2000 when he was hired as a firefighter by the Kern County Fire Department.  He Spent 20 years with the Kern County Fire Department and worked as a Firefighter, Fire Engineer, and Fire Captain.  He was hired by the Montclair Fire Department as a Battalion Chief in 2021 where he manages the department’s training division along with his operational shift duties.

Chief Nicoll holds a Fire Technology Certificate, an Associate’s Degree in Fire Science, a Bachelor’s Degree in Liberal Arts, and a Multiple Subject Teaching Credential.    He is a Registered Instructor, a certified Company Fire Officer, Chief Fire Officer, and Executive Chief Fire Officer through California State Fire Training along with several NWCG qualifications.

Battalion Chief Stanley Boehm

Stanley Boehm’s career in the fire service began in January 2012 when he was hired as a Firefighter Paramedic with the Montclair Fire Department.  He was promoted to the rank of Fire Engineer in April of 2017, and again in August 2020 to the rank of Fire Captain.  During his tenure with the Montclair Fire Department, Stanley has played an active role in both EMS and Training.  He has worked to further develop the Department’s Active Shooter Program and has served on the Department’s Training Committee for the past 7 years. Stanley Boehm was promoted to Battalion Chief in June of 2024, where he currently serves the citizens of Montclair and oversees the Department’s Emergency Medical Services.

Chief Boehm holds an Associates Degree in Fire Technology and is currently in the process of completing a Bachelor’s Degree in Fire Administration from Columbian Southern University.  Stan is also actively pursuing his Chief Officers Certification through California State Fire Training. He is a certified Company Fire Officer, and holds a paramedic license with the State of California and San Bernardino County.