On May 14, 2020, the County of San Bernardino launched the COVID-Compliant Business Partnership Program to support local small businesses and help ensure ongoing compliance with State and County health orders and direction.

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Meet the Staff

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Noel Castillo, PE, is the Public Works Director and City Engineer for the City of Montclair.   Noel graduated from the University of California, Irvine with a Bachelor of Science in Civil Engineering.  He started his civil engineering career in the private sector, designing freeways and working on rail and transportation projects.  He specializes in construction management in addition to highway and transportation design, and has experience in the design and engineering of a range of infrastructure projects, including rail, roads, highways, traffic signals, drainage, and utilities.  Noel spent the last 10 years with the City of Fontana and has over 11 years experience in managing City Capital Improvement Projects.  

Noel is motivated to educate the public and to help make Montclair a great place for our residents to live and work.  In addition, Noel enjoys participating in career day presentations at local schools, working to motivate kids to enter careers in STEM (Science, Technology, Engineering, and Math).

As Public Works Director, Noel oversees the Engineering, Street/Sewer Operations, and Grounds/Facilities Divisions of the Public Works Department.  In addition, as City Engineer, he also supervises the daily activities of the Engineering Division, including:

  • Administering the City's Capital Improvement Program, including supervising the preparation of design plans for public improvements and the construction and construction management of those improvements.
  • Supervising the issuance of construction permits.
  • Providing plan checking services for development activities such as tract maps, parcel maps, lot line adjustment, parcel mergers, street improvements, sewer improvements, storm drain improvements, and grading plans.
  • Supervising the City's Public Works inspection program for all work conducted within City right-of-way. • Conducting feasibility studies.
  • Maintaining records of engineering data for the Public Works Department, including benchmarks, centerline ties, record drawings, and traffic counts.
  • Overseeing the traffic signal operations including signal coordination and timing, street lighting, and traffic safety.
  • Coordinating traffic and transportation issues with surrounding and regional agencies.

Noel can be contacted at (909) 625-9441 or via e-mail at


Steve Stanton, Engineering Division Manager, is responsible for the implementation of the City’s Capital Improvement Program. His responsibilities include development of preliminary project concepts and cost estimates, preparation of grant applications for various projects, development of designs and construction drawings, preparation of project specifications, conducting public bid openings, and contract administration and construction management of Public Works projects. Steve began his employment in 1987 after being a life-long resident of the City of Montclair. He has worked within many departments including Human Services Department, Fire Department, Police Department, and currently the Public Works Department.

Steve can be contacted at (909) 625-9444 or via e-mail at


Jim Diaz, Public Works Inspector, began his career with the City of Montclair as a Maintenance Worker in 1998. Jim was promoted to the Public Works Inspector's position in 2002. As the City's only Public Works Inspector, Jim is responsible for inspections on all City improvement projects as well as those improvements constructed in the public right-of-way by developers. These inspections include new City streets and street rehabilitation projects, storm drains, sewer lines, park development, landscaping, and street lights. Jim moved to the City in 1973 and attended the local schools while growing up in Montclair.

Jim can be reached at (909) 625-9442 or by e-mail

Marissa Pereyda, Environmental Compliance Coordinator, began her career with the City of Montclair in 2014 as Administrative Specialist for the Engineering Division of Public Works. She became NPDES/Environmental Compliance Inspector in 2019, and now as Environmental Compliance Coordinator, she is responsible for the City’s compliance with Federal, State, and local regulations for environmental concerns, sewer, pretreatment, and other wastewater discharges.  She oversees the City’s FOG (fats, oils, and grease) inspection program and commercial and industrial pretreatment program. 

Marissa Pereyda can be reached at (909) 625-9446 or by email  


Joseph Rosales, NPDES Coordinator, began his tenure with the City in 1989. He was promoted NPDES Coordinator in 2004. He is responsible for implementing the requirements of the National Pollutant Discharge Elimination System (NPDES) as it relates to stormwater discharges from construction sites and industrial/commercial facilities. He ensures development/redevelopment projects comply with the San Bernardino County Water Quality Management Plan and coordinates with City staff to ensure all City departments are in compliance with City's stormwater program.

Joe can be reached at (909) 625-9470 or by email at


Vacant, NPDES Environmental Compliance Inspector, began her career with the City of Montclair in 2014 as Administrative Specialist for Public Works and Engineering.  Now, as NPDES Environmental Compliance Inspector, Marissa works under general direction, performing field inspections on industrial, commercial and residential discharges of stormwater and ensuring compliance with the NPDES permit.  Marissa also performs education and outreach activities for NPDES Programs. 

Vacant can be reached at (909) 625-9447.


Samantha Contreras, Administrative Technician, is frequently the first point of contact for the Public Works Engineering Division, assisting with inquiries at the counter and over the phone. He/she is responsible for the daily office activities of the Engineering Division, as well as issuing transportation permits and reporting traffic signal and street light problems. She also assists the City Engineer and other Engineering Division staff members with various projects.

Samantha can be reached at (909) 625-9478 or by e-mail at