Construction Materials Inspector

Overview

Construction Materials Inspector

The Public Works Department is recruiting for the position of Construction Materials Inspector. The department reviews all proposed land development projects in the City and executes the design and construction of public projects such as streets, parks, and public buildings.

First Review of Applications:
The first review of applications will take place on November 24, 2025 at 12:00 p.m. (PT). This recruitment may close without notice after this date, so interested applicants are encouraged to apply immediately. A resume and supplemental questionnaire (part of the online application) must be submitted with the completed City application. To be considered for this opportunity, please complete an application online by clicking Apply above this box.

Selection Process:
The process may include individual and/or panel interviews, background check, medical exam, and other related components. Meeting the minimum qualifications does not guarantee an invitation to participate in the process.

Reasonable Accommodation:
Human Resources will make reasonable efforts in the examination process to accommodate persons with disabilities. Please advise Human Resources of any special needs a minimum of 5 days in advance of the selection process by calling  or emailing: human resources.

Contact Us:
For additional information, please contact Human Resources Department at: human resources

The information contained herein is subject to change and does not constitute either an expressed or implied contract.

Definition

Under general supervision, tests soils and highway construction materials in the field and laboratory to insure compliance with City, Cal Trans, and industry norms, specifications, and safety standards; performs related duties as required.

Class Characteristics

This is a technical classification describing work performed in the Construction Unit of the Development and Environmental Services Department. Assignments, timelines, and objectives are established but the employee has flexibility in the selection of steps and timing of work. Review is occasional, during progress or upon completion, with the incumbent responsible for suggesting alternative solutions.

• Takes field and quarry samples of base, sub base, and quarry mix materials.
• Assists inspectors of construction projects with field measurements and sampling.
• Determines test sites.
• Sketches location of tests sample sites.
• Determines and conducts appropriate tests of material samples, such as nuclear density test to determine relative compaction of soils and aggregates; sand equivalent test; sieve analysis; oven moisture; cement sampling;
  Kelly-Ball cement testing; and slump cone.
• Performs mathematical calculations related to testing.
• Prepares technical reports on test results.
• Collects and distributes reports to construction inspectors.
• Coordinates with State Highway Testing Certification Inspectors in taking and conducting joint sampling and testing of materials to assure continued adherence to State Materials Testing Standards.
• Performs routine cleaning, maintenance and servicing of assigned equipment.
• Prepares budget recommendations for related materials and supplies.
• Files and maintains lab records.
• Prepares routine correspondence and reports.
• Serves as the City's Radiation Safety Officer.
• Researches locations and mark City facilities in the field for Underground Service Alert reports.
• May be required to assist Survey crew with rod and chain survey instrument work.

• Other duties as assigned.

Knowledge
:
Types and grades of commonly used construction materials; techniques of gathering materials from the field for testing; principles, practices, and techniques of laboratory testing; symbols used in design drawings; appropriate test results; mathematics through algebra and trigonometry; principles of physics; first year college level chemistry; high school level mechanical drafting.

Skills
:
Operating an automobile on city streets and construction sites; use of laboratory testing equipment such as a Nuclear Moisture Density Gauge, sieves, and Cal Trans Impact Tube.

Abilities
:
Obtain samples of construction materials; determine and conduct appropriate tests; learn characteristics and provenance of local soils and gravels; make accurate computations; read blueprints; gather data and prepare accurate reports; keep accurate records; learn and apply standard practices and procedures; follow oral and written instructions; establish and maintain cooperative working relations with individuals from a variety of cultural and socio-economic backgrounds;

learn and apply new/changed standards, policies, and procedures; learn rod and chain and surveying work; comply with common safety procedures; communicate effectively, both orally and in writing.

Incumbents must possess the physical and mental capacity to work under the conditions described in this document and to perform the duties…