Delta Diablo

Maintenance Mechanic

Onsite - Antioch, CA
$100K - $125K Annually
Application Deadline: 5/24/24


The Maintenance Mechanic II classification performs mechanical equipment servicing and maintenance major repair work on District wastewater treatment, recycled water, and resources recovery facilities and systems.

QUALIFICATIONS: Qualifications for this position include a combination of training and experience which demonstrates that a person has obtained the required knowledge and is able to perform the required work (with reasonable accommodation, if needed). An individual with the following combined training and experience would typically qualify to compete in a selection process:

•             Education: High school diploma or equivalent supplemented by vocational or technical school and training in mechanical equipment maintenance and repair.

•             Experience: Three (3) years experience servicing, overhauling, repairing, and installing heavy equipment and machinery used in hydraulic and chemical processing plants comparable to Delta Diablo.


•             A valid California State Class C license must always be maintained.

•             A valid CWEA Mechanical Technologist Grade I certification must be obtained within one (1) year of appointment or hire; a valid CWEA Mechanical Technologist Grade II certification must be obtained within two (2) years of appointment or hire.

•             A valid CPR and First Aid certification must be obtained within one (1) year of employment and maintained throughout employment with the District.

Maintenance Mechanic II Supplemental Questionnaire

1.           Select the type of valid California Driver’s License you possess.


2.           How many years of applicable experience do you have as a Maintenance Mechanic II?

3.           Describe the applicable work experience you indicated in Question #2. Include your employer’s name, position title(s), and the start and end date of the experience. If you have no experience, please state “no experience”.

4.           Check the highest grade CWEA Mechanical Technologist Certificate you possess.


5.           Below is a list of some equipment used at Delta Diablo’s Wastewater Treatment Plant. Please check which of these you have experience maintaining and repairing.


 6.          Describe your experience maintaining and/or repairing the types of equipment you checked in Question #5. Include the employer’s name, your position title(s), and the start and end dates of the experience. If you have no experience, please state “no experience”.

7.           List any other trade certifications you possess that are related to this position.

8.           I understand that by submission of my application for this position, I acknowledge that I must, as outlined below, obtain, and maintain the following certifications for the duration of my employment:

•             A valid California Class C Driver’s License is required during employment with the District.

•             A valid California Water Environment Association (CWEA) Mechanical Technologist certification (Grade I) must be obtained within one (1) year of appointment or hire.

•             A Grade II CWEA Mechanical Technologist certification must be obtained within two (2) years of appointment or hire.

•             A valid Cardiopulmonary Resuscitation (CPR) and First Aid certificate must be obtained within one (1) year of employment.

•             Certification must be maintained to comply with Cal/OSHA requirements for classifications that perform duties involving confined space operations.


Delta Diablo seeks to attract and hire individuals who possess a commitment to integrity, open communication, and customer service. The selected candidate will be a self-starter who can work collaboratively as part of a team dedicated to safeguarding public health and protecting the environment of the communities we serve. The selected candidate will also reflect and model a value system of trust, loyalty, respect, and a sense of teamwork to the entire organization.

The Maintenance Mechanic II position is represented by the Operations & Maintenance Representation Unit/ Public Employees Union, Local 1/AFSCME Council 57, and shall be filled in accordance with the provisions of the Memorandum of Understanding with Delta Diablo and applicable District procedures.

Applicants interested in being considered for this position must submit a completed Delta Diablo Employment Application no later than the final filing date above (postmarks and faxes are not accepted). All material should be submitted online at Incomplete applications will not be considered. A resume may be included but does not substitute for a completed application form. While it is preferred that District employees complete the online application, an Internal Application and the supplemental responses above can be submitted via email to (If using the Internal Application, please fill in the responses to the questions above. Save this document and attach it to the Internal Application before submitting via email.)

Following the close of the recruitment, a screening committee will evaluate the qualifications of each candidate who has met the minimum requirements for this position. Applicants meeting minimum qualifications are not guaranteed advancement to the examination. Those candidates whose application indicates their experience and education are best suited to meet the current needs of the District will be invited to participate in the examination and/or interview process. The decision of the screening committee is final. Applicants may be invited to participate in an examination process that may involve a written test, a skills performance test, and a qualifying oral interview. All applicants shall receive written notification regarding the results of the review process.

NOTE: The information contained herein does not constitute either or implied contract, and these provisions are subject to change.

All final candidates for employment with the District are subject to a criminal background and reference check. Successful candidates not currently employed in a regular status by the District must pass a pre-employment physical examination and drug screen to be considered for employment

Recruiter Information: