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State of Washington Classified Job Specification


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Class Code: 536G
Category: Science & Engineering


As a registered Professional Engineer, performs professional environmental engineering duties in an assigned program involving the protection of public health and/or the protection or restoration of the environment.  May supervise or lead assigned engineers and/or other staff. 

Distinguishing Characteristics

Incumbents represent the agency as a registered Professional Engineer and provide/approve final engineering designs and decisions. 

Typical Work

Serves as a registered Professional Engineer responsible for performing independent environmental engineering duties for a specific environmental program; duties may include final review and/or approval of detailed engineering plans and specifications, site plans, engineering reports and/or operation and maintenance of environmental systems; reviews the work of engineers who do not possess registration as a Professional Engineer; 

Ensures compliance with applicable federal, state, and local laws, regulations, and policies; prepares, recommends and/or coordinates enforce action (civil and criminal penalties, directives, or regulatory orders) against the regulated community based on a review of applicable engineering information; 

Serves as an agency environmental engineering expert responsible for the review of engineering reports and detailed plans and specifications for projects involving federal and state grant funds; may provide technical oversight, assistance and/or training to other governmental entities;  

Independently plans and/or conducts specialized comprehensive engineering inspections and/or studies of municipal and industrial environmental treatment facilities to ensure compliance with applicable laws, regulations and design/performance requirements;  

Provides professional engineering expertise to the review and evaluation of proposal or existing environmental permits and permit applications; negotiates and prepares permits; makes final recommendations on enforcement actions;  

Provides professional technical engineering assistance to agency staff and management, the regulated community, their consultants and the general public; 

Interprets regulations, policies, technical engineering guidelines, and procedures covering design requirements, engineering review, and operation and maintenance requirements for environmental control or management facilities; 

Researches, writes, and provides technical direction in the development/revision and implementation of engineering standards, regulations, and guidelines for specific environmental program(s) and related engineering issues;  

Prepares, reviews, and negotiates with applicable parties for environmental permits, regulatory orders and environmental plans and monitoring programs for assigned program(s); 

May supervise and plan the work of engineers and/or environmental staff with a unit responsible for assigned environmental program activities;  

Prepares and delivers engineering oriented presentations to professional groups and/or the public regarding department programs; serves as an expert witness in judicial proceedings and public hearings; 

Performs other work as required. 

Knowledge and Abilities

Knowledge of:  principles and practices of environmental engineering and/or environmental sanitation; design, construction and operation of air quality control, water supply and treatment and sewage and industrial waste disposal systems; physical and biological sciences as related to environmental engineering; methods and procedures in establishing and administering an environmental program; laws and regulations governing environmental issues. 

Ability to:  evaluate technical environmental engineering data and computations; develop designs involving environmental engineering theory and judgment; plan, promote and administer environmental engineering projects; supervise and train others; establish and maintain cooperative working relationships with public officials and community groups; write engineering reports and proposed environmental legislation. 

Legal Requirement(s)

Registration as a Professional Engineer in the state of Washington as required by RCW 18.43.  There may be instances where individual positions must have additional licenses or certification.  It is the employer’s responsibility to ensure the appropriate licenses/certifications are obtained for each position. 

Desirable Qualifications

A Master's degree with major study in one of the following engineering fields:  sanitary water resource, civil, geotechnical, environmental, chemical, mechanical, or related field  


Registration as a Professional Engineer in the state of Washington or another state based on registration requirements equivalent to those in Washington and two years of experience in environmental engineering


An Engineer-In-Training Certificate or a Bachelor's degree with a major study in one of the following engineering fields:  sanitary, civil, geotechnical, water resource, environmental, chemical, mechanical or related field


Registration as a Professional Engineer in the state of Washington or another state based on registration requirements equivalent to those in Washington and three years of experience in environmental engineering .

NOTE:  A Ph.D. in one of the above engineering fields will substitute for two years of the environmental engineering experience. 

NOTE:  Requirements for professional registration as an engineer in the state of Washington are eight years of professional experience (which may include up to four years of college-level engineering education) and successful completion of sixteen hours of professional licensing exams.  Applicants qualifying through the licensing equivalency option must achieve professional registration as an engineer in the state of Washington within six months of appointment to this class. 

Class Specification History

General revision, effective January 1, 1968.
Revised minimum qualifications, effective December 1, 1968.
Revised minimum qualifications, effective March 1, 1969.
Revised minimum qualifications, effective October 1, 1969.
Revised definition and general revision, effective March 3, 1986.
Revised minimum qualifications, effective April 10, 1987.
Revised definition and minimum qualifications, adds distinguishing characteristics and title change (formerly Sanitary Engineer 3), effective September 18, 1989.
Revised minimum qualifications, effective November 15, 1991.
Revised definition, distinguishing characteristics, and minimum qualifications, effective January 29, 1993.
Revised minimum qualifications, effective January 13, 1995.
New class code, formerly 62520, effective July 1, 2007.
General revisions, housekeeping only: Revises definition, distinguishing characteristics, typical work, legal requirements, and desirable qualifications, effective November 14, 2008.