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State of Washington Classified Job Specification


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Class Code: 514E
Category: Science & Engineering


In the Department of Ecology, under technical direction of a Hydrogeologist 2 or higher, serves as a hydrogeologist performing analyses and technical services on assigned office and field projects involving ground water, unsaturated zone, and/or surface water.

Typical Work

Provides professional assistance in hydrogeologic analyses requiring familiarity with the basic formulas, scientific methods, and general principles of hydrogeology, hydrology, geology, soils, chemistry, meteorology, and related subjects; field surveying and technical reporting; 

Reviews, researches, and interprets pertinent literature, in-house files, and computer data bases for specific ground water quality, water supply, or water use projects within the State;  

Reviews hydrogeologic and hydrologic data and information in reports prepared by others to assure that such information is accurate and complete; 

Collects, records, evaluates, and reports background information and basic data;  

Locates and/or maps hydrologic and geologic features, diversions, storage structures, and drainage areas using office and/or field interpretation techniques;  

Performs field measurements and sample collection;  

Specific field activities may include measuring and analyzing of water levels in wells, well pumping rate, stream flow, stream gage discharges, and elevations (leveling); collection and classification of water quality samples, surface soil or rock samples, and drill cuttings; other on-site field work for specific investigations; 

Performs other work as required.

Knowledge and Abilities

Knowledge of:  physical and natural sciences related to quantity, quality, development, and monitoring of ground water and surface water; principles and practices of hydrogeology, hydrology, geology, well and stream hydraulics, soils, geochemistry, meteorology, and related earth sciences; basic computer science; field surveying, mapping, instrumentation techniques, and technical writing. 

Ability to:  apply standard methods in determination of the following:  ground water movement and storage, ground water recharge, discharge, presence, extent, and migration of contaminants; areal extent and thickness of geologic formations, hydraulic conductivities, boundary conditions, and other aquifer properties; stream flow characteristics, well construction, radial flow to a well, and well interference.

Legal Requirement(s)

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 Bachelor's degree involving major study in hydrogeology, hydrology, geology or closely allied field.   


One year of professional experience as a hydrogeologist, hydrologist, geologist or closely allied professional or one year as a Hydrogeologist Trainee.   

A Master's degree with major study in hydrogeology, hydrology, geology, or closely allied field will substitute for the experience.

Class Specification History

New class: 5-15-92
New class code: (formerly 63581) effective July 1, 2007