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      (909) 987-5215


Jeff Christensen


David Rangel


Denise Johnson


Jeffrey D. Christensen
Director of Maintenance and Operations

David Rangel
Maintenance and Operations Manager

Denise Johnson
Maintenance and Operations
Office Manager


Randy Williams
Maintenance Worker II
Fred Higueros
Maintenance Worker II
Saul Pereyra
Maintenance Worker II
Bob Manning
Maintenance Worker II
Sam Manning
Maintenance Worker II


Dani Marcos
Lead Groundsman

Richard Lopez
Grounds Maintenance Worker
Chris Wilken
 Grounds Maintenance Worker

Jaime Encinas
Grounds Maintenance Worker

Victor Amaya
Grounds Maintenance Worker

Aaron Burchit
Grounds Maintenance Worker

Maintenance and Operations Homepage

7555 Hellman Ave. , Rancho Cucamonga, CA  91730


Jeffrey D. Christensen
Director of Maintenance and Operations

Contact the Maintenance and Operations Department

"No Problems ~ Only Solutions"

Our Business Services Department is responsible for the following maintenance and grounds tasks:

  • Maintenance of building, grounds and equipment
  • Emergency Report Locations
  • Graffiti removal
  • Weekend security
  • Deferred maintenance administration
  • Asbestos and other hazardous material compliance
  • Work order administration
  • Maintenance of district-owned vehicles

Chemical Sensitivity registry

If your child has a chemical sensitivity, please complete the Chemical Sensitivity Registry form and return  to Denise Johnson at the Maintenance and Operations Center (  If you have any questions, please call (909) 987-5215.

*Please note that forms do not carry over annually.  A new form must be completed each school year for a student to remain on the registry.

Chemical Sensitivity Registry Form

District-Wide Facilities Master Plan

In April of this year staff began meeting with school site personnel including teachers, support staff and administrators as well as parents and students to update the district’s Facilities Master Plan (FMP). Additionally, parents were encouraged at the end of the school year last year to complete a survey indicating what they believed the needs were at their school(s). Consultants from California Financial Services and GO Architects, Inc. worked collaboratively to update existing school site plans and create new plans based on the input from the individual school site teams and survey results. The FMP addresses health, safety and access code, and housekeeping needs as well as addresses the educational transformation needs for each site. It provides a framework and broad-based system for coordination and development of individual facility projects. It anticipates future needs, defines characteristics of facilities which are needed to support the district’s educational mission, and identifies the funding and resources needed to implement the various projects. The plan should be considered a living document that will continue to be updated and adjusted as district and site needs and conditions change. 


To view the FMP, please click the link below.

District-Wide Facilities Master Plan

Drinking water lead testing information

California Assembly Bill 746 (AB 746) was approved by the Governor and published on October 13, 2017.  The bill requires all community water systems that serve a school site of a local educational agency with a building construction before January 1, 2010 to test for lead in the potable water system of the school site on or before July 1, 2019.  Health Safety Code 116277 was also developed and added under AB 746 to provide guidelines and requirements for K-12 schools.

On November 21, 23, and December 1, 2018, the district responded to the requirement and hired a third party company to perform sampling at all seven of our sites.  Five of the seven schools had test results at or above the 15ppb threshold for the presence of lead.  All of these fountains have been replaced.
All sampling methods followed the requirements of Health Safety Code 116277 and were submitted to a State of California Department of Health Services accredited laboratory where they tested using approved Environmental Protection Agency methods.

The full report with maps of sampling locations and analytical reports for each sample taken can be accessed here:

CSD Water Report (PDF)

CSD Water Report #2 (PDF)

CSD Water Report #3 - FINAL (PDF)

Integrated Pest Management (IPM) Plan

To view the IPM, please click the link below.

Integrated Pest Management Plan

Updated 08/06/2020

San Bernardino County Restricted Materials Permit

To view the current San Bernardino County Restricted Materials Permit, please click on the link below:

Restricted Materials Permit 2021.pdf (PDF)  Expires: 12/31/2021


MSDS Right-To-Know

For a list of chemicals used within Central School District click here: chemicals list.