Napa County is home to 140,000 residents who share a strong sense of community and a legacy of preserving and protecting our rich agricultural heritage.
Located in the heart of California's preeminent wine region, the Napa Valley is also part of the dynamic San Francisco Bay Metropolitan Area. With its sunny Mediterranean climate and proximity to the mountains and ocean, the Valley offers residents easy access to virtually unlimited shopping, dining, cultural and recreational opportunities.
The Napa Valley's strategic location, natural and cultural resources, history of responsible land use planning and attractive quality of life provide the ideal mix of small town living and big city amenities.
As an organization, Napa County is dedicated to improving the lives of our citizens and reflecting the best of the community's values: Respect, Accountability, Dedication, Integrity and Innovation.
About the Position The Senior Environmental Health Specialist position under general direction, performs the more complex and specialized work in the regulation and enforcement of environmental health and safety laws, rules and regulations; plans and implements specialized programs, performs difficult and highly technical work in areas requiring specialized training or knowledge, may provide supervision to subordinate staff, performs other duties as required. This is the advanced journeyman level class in the Environmental Health Specialist series.
The position will be a Senior for the Wells, and Onsite Wastewater (WOW) team. WOW is responsible for implementing construction, destruction, and boring permits; the review and approval of onsite wastewater systems, including their routine inspection, construction, and demolition. Napa County implements the winery general order and is overseen by two regional water quality control boards (Central and San Francisco).
We are seeking a seasoned candidate who is passionate about environmental health and its charge to protect public health. A desirable candidate is well versed in well and septic program components and how to implement the requirements while maintaining professionalism in the delivery of Napa County’s mission statement.
This recruitment is being conducted to fill one full-time vacancy in the Planning, Building & Environmental Services, Environmental Services Department. The list established by this recruitment may also be used to fill future full-time, part‑time, limited‑term, and extra help vacancies for up to one year.
The successful candidate will be eligible to receive up to a $15,000 signing bonus depending upon the selected candidate’s qualifications.
Education and Experience:
To qualify for this classification, an individual must possess any combination of experience and education that would likely produce the required knowledge and abilities. A desirable combination is:
Education Equivalent to graduation from an accredited college or university with a Bachelor's degree in the biological or physical sciences.
Experience Two years of increasingly responsible experience in the field of environmental health regulation and enforcement. (Possession of a master's degree in Public Health, Environmental Health or other basic sciences may be substituted for one year of the required experience.)
License or Certificate Possession of valid certificate as a Registered Environmental Health Specialist issued by the California Department of Public Health.
Possession of a valid Class C California Driver's license.
Any license, certification, or registration required for this position shall be maintained (i.e. active and in good standing) at all times during employment with Napa County. For continued employment with Napa County, you must maintain such license, certification, or registration to meet the minimum qualifications of this position.
Recruitment Process Online Application Deadline:
EXTENDED – Monday October 19, 2026, 5:00 pm (PST)
Supplemental Question Scoring – Tentatively scheduled for the week of October 19, 2026. Supplemental questions will be scored by subject matter experts. Only the most qualified applicants from scoring the supplemental questions will be invited for an Oral Panel Interview.
Oral Panel Interview – Tentatively scheduled for the week of November 2, 2026. Only the most qualified candidates from the Oral Panel Interview will be placed on the eligibility list and may be considered to fill positions for up to one year.
The Human Resources Department reserves the right to change the recruitment process at any time.
Napa County employees automatically become Disaster Service Workers. This means that when Napa County experience emergencies (earthquakes, wildfire, power outage, etc.) you may be asked to pivot from your regular duties to provide critical services to those affected by the emergency (Cal. Gov. Code § 3101.)
Applicants requiring accommodation during the application and/or selection process pursuant to the Americans with Disabilities (ADA) Act should contact County of Napa Human Resources at (707) 253-4303.
Napa County is an Equal Opportunity Employer.
