Senior Scientist

Orange County Sanitation District
Fountain Valley, CA


What do you value in your next job?

At the Orange County Sanitation District our Core Values form the framework of our organization and reinforce our professional work ethic. If the following values ring true with you, we’d love to invite you to explore our career opportunities further.

Honesty, Trust, & Respect
We aspire to the highest degree of integrity, honesty, trust, and respect in our interaction with each other, our suppliers, our customers, and our community.

Teamwork & Problem Solving
We strive to reach OC San goals through cooperative efforts and collaboration with each other and our constituencies. We work to solve problems in a creative, cost-effective and safe manner, and we acknowledge team and individual efforts.

Leadership & Commitment
We lead by example, acknowledging the value of our resources and using them wisely and safely to achieve our objectives and goals. We are committed to act in the best interest of our employees, our organization, and our community.

Learning/Teaching - Talents, Skills and Abilities 
We continuously develop ourselves, enhancing our talents, skills, and abilities, knowing that only through personal growth and development will we continue to progress as an agency and as individuals.

We seek to recognize, acknowledge and reward contributions to OC San by our many talented employees.

OC San is currently looking to fill the role of a Senior Scientist (QA Administrator) in the Quality Assurance Group.

Under general supervision or direction, the Senior Scientist will serve as a lead in the Quality Assurance Group to oversee all elements of the TNI/NELAP (The NELAC Institute/National Environmental Laboratory Accreditation Program), California ELAP (Environmental laboratory Accreditation Program), and South Coast AQMD (Air Quality Monitoring District) accreditation programs for the Laboratory.  The Senior Scientist will have a strong understanding of the laboratory methods and QA/QC elements related to chemical, microbiological, radiological, and toxicological testing in various matrices including water, wastewater, ambient water, solids, air, and sediment.  The Senior Scientist will report directly to the Environmental Laboratory and Ocean Monitoring Manager.

The Senior Scientist will be responsible for:

  • Writing and reviewing laboratory quality manual and administrative standard operating procedures and validating analytical standard operating procedures.
  • Providing quality control review of applicable compliance reports.
  • Ensuring that results are communicated appropriately.
  • Providing leadership and guidance to others,
  • Conducting annual laboratory internal audits and organizing/coordinating external lab audits.
  • Coordinating PE/PT studies for the laboratory.
  • Organizing, managing, and reviewing the annual Quality Management System audit and prepare and make presentations to management, staff, the Board of Directors, regulators, other public agencies, the public, and professional groups.
  • Working with IT to improve the LIMS system.
  • Serving as subject matter expert on QA related items.
  • Working closely with the supervisory team.
  • Coordinating sampling/analysis with other Divisions,
  • Performing any other tasks requested by supervision/management.

Qualifications & Requirements

The successful candidate will possess:

  1. Bachelor’s degree from a college or university accredited by the U.S. Department of Education, with major coursework in a science, or a related field; AND,
  2. Seven (7) years of work experience in scientific research projects or environmental compliance.
  3. Valid California Class C Driver’s License.

Recruitment & Selection Process

Vacancies: 1
(an eligible list may be established for future vacancies) 
Apply online at:
 APPLICATION FILING DEADLINE: Thursday, April 8, 2021 by 5:00 P.M.
 (or until a sufficient number of qualified applications have been received)
Hiring Salary Range: $123,656.00 - $136,344.00/Year
(starting salary will be within this range based upon qualifications)

Supplemental Information

Physical Demands

Must possess mobility to work in a standard office setting and use standard office equipment, including a computer; ability to travel to various District sites, projects and/or meetings; vision to read printed

materials and a computer screen; and hearing and speech to communicate in person, before groups, and over the telephone. This is primarily a sedentary office classification although standing in and walking between work areas may be required. Some positions may work in or around laboratories and/or may be required to perform some fieldwork and may traverse on foot uneven surfaces, walk within the District’s treatment plants and participate in ocean sampling efforts. Must be able to travel between District work sites, to attend meetings outside of the District and to access testing/sampling locations. Finger dexterity is needed to access, enter, and retrieve data using a computer keyboard or calculator and to operate standard office equipment, as well as in some cases, laboratory or other scientific equipment and instrumentation. Positions in this classification occasionally bend, stoop, kneel, reach, push, and pull drawers open and closed to retrieve and file information. Must be capable of working in wet and moving environment when assigned to work on marine vessel. Employees must possess the ability to lift, carry, push, and pull materials and objects weighing up to 25 pounds.

Environmental Elements

Employees primarily work in an office environment with moderate noise levels, controlled temperature

conditions, and no direct exposure to hazardous physical substances. Some positions may work in or

around laboratories and/or may be required to perform some fieldwork and may be exposed to hot and cold temperatures, inclement weather conditions, loud noise levels, vibration, road hazards, boating hazards, confining workspace, chemicals, mechanical and/or electrical hazards, and hazardous physical substances, odors, and fumes. Employees may interact with upset staff and/or public and private representatives in interpreting and enforcing departmental policies and procedures.


Disaster Service Workers

All OC San employees are designated Disaster Service Workers through state law (California Government Code Section 3100-3109). Employment with the OC San requires the affirmation of a loyalty oath to this effect. Employees are required to complete all related training as assigned, and to return to work as ordered in the event of an emergency.


Other Information

For the full range of duties, responsibilities, and essential job functions please review the Classification Specification for this position found on our website.
 Applicants must clearly demonstrate, through their application materials, that they meet the minimum requirements as outlined in the job announcement and class specification to receive further consideration. However, meeting the minimum requirements does not guarantee an interview. All properly completed applications will be reviewed, and the most appropriately qualified individuals will be invited to continue in the selection process.


False statements may be cause for disqualification, removal from the eligible list, or discharge from employment. All statements made on applications are subject to investigation and verification.


To ensure your application is accurate and complete, please review the Job Application Guide.

 Employment is contingent upon successful completion of OC San’s pre-employment process, which includes a background investigation and a physical examination. For some positions, this may include a drug screen. False statements may be cause for disqualification, removal from the eligible list, or discharge from employment. All statements made on applications are subject to investigation and verification. 


Reference Checks will be conducted by OC San to verify employment related information for all potential employees once a contingent job offer is made during the background investigation process. This is done to ensure that individuals who join OC San are well qualified and have a strong potential to be successful in their employment. The extent of the inquiry will depend on the position being applied for, but will at least include:

  • Verification/Reference from current and past employers
  • Confirmation of necessary licenses, certificates, and degrees.

Please have all necessary documentation ready. Additional inquiries may be necessary depending on the position for which you are applying. Human Resources will also schedule a post-offer physical examination once a job offer has been made.

OC San only accepts applications submitted via our online application system. Applications submitted via mail, fax or email will not be accepted.
The provisions of this announcement do not constitute an expressed or implied contract. Any provision contained in this announcement may be modified or revoked without notice.