Senior Water & Wastewater Laboratory Technician
Salary
$98,140.38 - $118,046.59 Annually
Location
Moorpark and may require travel throughout Ventura County, CA
Job Type
Full-Time Regular
Job Number
0479PWA-26AA (KF)
Department
Public Works Agency
Opening Date
05/26/2026
Closing Date
6/1/2026 5:00 PM Pacific
Description
WHAT WE OFFER
The PUBLIC WORKS AGENCY employs Senior Water & Wastewater Laboratory Technician in the Water & Sanitation (WS) Department. WS operates 24 hours a day, 365 days a year to serve the public and is responsible for the administration, customer service, billing, operation, maintenance, design, construction and inspection of water and sewer systems: specifically four (4) potable water systems, seven (7) sewer collection systems, three (3) wastewater treatment plants and one (1) recycled water system.
THE POSITION
Under general direction, leads, oversees and participates in the more complex and difficult work of laboratory staff performing chemical, physical and microbiological analysis of portable water, wastewater, industrial water and storm water; assists the Water/Wastewater Laboratory Manager in the administration of the QA/QC program and serves as back-up "Technical Manager" in their absence; and performs a variety of tasks to ensure Water and Sanitation's compliance with state law and permits.
Examples Of Duties
Duties may include, but are not limited to, the following:
Sr Water & Wastewater Lab Tech is represented by the Service Employees International Union (SEIU) and eligible for overtime compensation.
Typical Qualifications
These are entrance requirements to the examination process and assure neither continuance in the process nor placement on an eligible list.
EDUCATION, TRAINING and EXPERIENCE
Possession of a Grade II level Laboratory Analyst Certification issued by the California Water Environment Association (CWEA) at the time of hire.
NECESSARY SPECIAL REQUIREMENTS
DESIRED
KNOWLEDGE, SKILLS and ABILITIES
Considerable knowledge of: water and wastewater treatment principles; standard laboratory procedures, terminology, equipment and techniques used in chemical, biological and bacteriological analysis; standard laboratory testing methods, modern laboratory practices, and computer equipment; principles and practices of qualitative and quantitative chemistry, mathematics, biology and microbiology; water and wastewater sampling techniques and field equipment procedures; and applicable federal, state, and local laws, codes and regulations; and laboratory safety protocols, occupational hazards and standard safety principles and practices.
Skill in: the use of calibration and maintenance of laboratory apparatus and equipment to perform chemical, biological, bacteriological and physical sample and analytical analysis, and data analysis and interpretation.
Ability to: to perform and train others in standard chemical, biological, physical and bacteriological analyses; use computers and a variety of computer software programs and applications; communicate clearly and concisely, both orally and in writing; prepare clear and concise technical reports; maintain effective working relationships; and lead staff and provide general direction.
Recruitment Process
FINAL FILING DATE: Your application must be received by the County of Ventura, Human Resources no later than 5:00 p.m. on Monday, June 1, 2026.
To apply online, please refer to our web site at www.venturacounty.gov/jobs. A paper application can be obtained by calling (805) 654-5129. Our address is County of Ventura Human Resources Division, 800 South Victoria Avenue, L-1970, Ventura, CA 93009.
Applicants must provide sufficient information under the Education/Work experience portion of the application and supplemental questionnaire to thoroughly and accurately demonstrate your qualifications in order to determine eligibility. A resume may be attached to supplement your responses in the above-referenced sections; however, it may not be submitted in lieu of the application.
NOTE: If presently permanently employed in another "merit" or "civil service" public agency/entity in the same or substantively similar position as is advertised, and if appointed to that position by successful performance in a "merit" or "civil service" style examination, then appointment by "Lateral Transfer" may be possible. If interested, please click here for additional information.
SUPPLEMENTAL QUESTIONNAIRE - qualifying: All applicants are required to complete and submit the questionnaire for this exam at the time of filing. This questionnaire may be used throughout the examination process to assist in determining each applicants qualifications and acceptability for the position. Failure to complete and submit the questionnaire may result in removal of the application from further consideration.
APPLICATION EVALUATION- qualifying: All applications will be reviewed to determine whether the stated requirements are met. Applicants meeting the stated requirements will be invited to continue to the next step in the recruitment process.
TRAINING and EXPERIENCE EVALUATION: A Training and Experience Evaluation (T&E) is a structured evaluation of the job application materials submitted by a candidate, including the written responses to the supplemental questionnaire. The T&E is NOT a determination of whether the candidate meets the stated requirements; rather, the T&E is one method for determining who are the better qualified among those who have shown that they meet the stated requirements. In a T&E, applications are either scored or rank ordered according to criteria that most closely meet the business needs of the department. Candidates are typically scored/ranked in relation to one another; consequently, when the pool of candidates is exceptionally strong, many qualified candidates may receive a score or rank which is moderate or even low resulting in them not being advanced in the process.
NOTE: The selection process may consist of an Oral Examination, which may be preceded by or replaced with a score from a Training and Experience Evaluation (T&E), contingent upon the size and quality of the candidate pool. In a typical T&E, your training and experience are evaluated in relation to the background, experience and factors identified for successful job performance during a job analysis. For this reason, it is recommended that your application materials clearly show your relevant background and specialized knowledge, skills, and abilities. It is also highly recommended that the supplemental questions within the application are completed with care and diligence. Candidates must earn a score of seventy percent (70%) or higher to qualify for placement on the eligible list.
ORAL EXAMINATION - 100%: A job-related oral examination may be conducted to evaluate and compare participating candidates knowledge, skills, and abilities in relation to those factors which job analysis has determined to be essential for successful performance of the job. Candidates must earn a score of seventy percent (70%) or higher to qualify for placement on the eligible list.
If there are three (3) or fewer qualified applicants, an examination will not be conducted. Instead, a score of seventy percent (70%) will be assigned to each application, and each applicant will be placed on the eligible list.
ELIGIBLE LIST: Candidates successfully completing the examination process may be placed on an eligible list for a period of one (1) year. The eligible list established from this recruitment may be used to fill present and future Regular (including Temporary, and Fixed-term), Extra Help and Intermittent vacancies for these positions (or similar positions) only. There is currently one (1) Regular vacancy.
BACKGROUND INVESTIGATION: The selected candidate may be subjected to a thorough post-offer, pre-employment background investigation which may include inquiry into past employment, education, criminal background information, and driving record. For further information about this recruitment, please contact Kelli Fitzgerald by email a at kelli.fitzgerald@venturacounty.gov.
EQUAL EMPLOYMENT OPPORTUNITY: The County of Ventura is an equal opportunity employer to all, regardless of age, ancestry, color, disability (mental and physical), exercising the right to family care and medical leave, gender, gender expression, gender identity, genetic information, marital status, medical condition, military or veteran status, national origin, political affiliation, race, religious creed, sex (includes pregnancy, childbirth, breastfeeding, and related medical conditions), and sexual orientation.
YOUR BENEFITS AS A COUNTY OF VENTURA EMPLOYEE
Service Employees International Union (LOCAL 721)
(SEIU)
To learn more about Benefits, Retirement, and the Memorandum of Agreement (MOA), see links below.
Union Codes: UPA, UPC, UPE, UPH, UPI, UPJ, UPT, UWS
01
Do you possess or have the ability to obtain and maintain a valid California drivers license?
02
Do you possess a Grade II level Laboratory Analyst Certification issued by the California Water Environment Association (CWEA)?
03
Please indicate the highest level of education you have completed.
04
If applicable, please include the field of study for your related degree or college coursework. Include specific coursework completed in biology, microbiology, chemistry or a related environmental science field.
Respond "N/A" if not applicable.
05
Describe your experience leading and training employees in standard chemical, biological, physical and bacteriological analyses. Include the following:
A. Classification(s) held;
B. Time frame(s) (start and end dates in month/year format);
C. Classification(s) of the employees youve led/trained; AND
D. Detailed description of your duties and responsibilities.
Respond "no experience" if you do not have this type of experience.
06
A water sample is submitted for testing due to suspected bacterial and chemical contamination. Describe how you would test for bacteriological contamination and chemical contaminants. Be thorough and clear in your response and include key procedures, terminology, equipment and techniques.
Respond "no experience" if you do not have this type of experience.
07
A sample is tested for microbial contamination and chemical composition. Briefly explain the difference between qualitative and quantitative analysis, giving one example of each and include the following:
A. A plate count shows 120 colonies from a 1:1,000 dilution. Calculate the CFU/mL in the original sample; AND
B. Outline the basic steps used to isolate and identify microorganisms.
Respond "no experience" if you do not have this type of experience.
08
During routine laboratory testing, a hazardous sample is accidentally spilled.
A. What immediate safety procedures should be followed; AND
B. What occupational hazards are involved and how can they be minimized?
Respond "no experience" if you do not have this type of experience.
09
Before testing samples, a lab instrument needs calibration. Describe the following:
A. How do you calibrate and maintain a lab instrument;
B. Why is routine maintenance important; AND
C. How do you analyze and interpret the results to ensure accuracy?
Respond "no experience" if you do not have this type of experience.
10
Describe your proficiency in the use of computers and software such as Adobe Acrobat and Microsoft Office Word and Excel. For each item, include the following:
A. Your proficiency level (beginner, intermediate, advanced, expert); AND
B. Description of your use of the items to demonstrate your proficiency.
Respond "no experience" if you do not have this type of experience.
Required Question
Employer Ventura County
Address 800 S. Victoria Avenue
LOC. #1970
Ventura, California, 93009
Phone (805) 654-5129
Website http://hr.venturacounty.gov