Hydrologic Technician (Field Assistant)
Geological Survey
Posted: March 24, 2026 (0 days ago)
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Geological Survey
Department of the Interior
Location
Salary
$17.45 - $25.29
per hour
Type
Full-Time
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This job is for a temporary field assistant who helps collect data on water levels, flow, and quality in rivers, streams, and wells around Grand Junction, Colorado.
It involves hands-on outdoor work using tools to measure and record environmental information for scientific studies.
It's a good fit for someone with basic experience in fieldwork or lab support who enjoys being outdoors and doesn't mind temporary, hourly employment.
What General Information Do I Need to Know About This Position? Salary: $17.45 hourly (Step 01) to $25.29 hourly (Step 10).
Note: First time hires to the Federal Government are typically hired at the Step 01.
Duration of Appointment: This is a temporary excepted service position not-to-exceed 1 year but may be extended without further competition. Employment may not exceed 1,039 hours in a service year.
CONTINUED IN DUTIES SECTION: Applicants must meet one of the following to qualify at the GG-04 level: Possess at least six months of field survey party experience.
Experience with a field survey party includes activity associated with making and recording geologic, hydrologic, biologic, or topographic field observations; collecting geologic, biological, or water samples for laboratory analysis; applying accepted data collection techniques and methods in the performance of field work in support of scientific investigations; and using a variety of surveying instruments and electronic or mechanical instrumentation in the making and recording of field measurements and observations designed to collect data for physical/ biological science investigations.
Only time actually spent in the field can be credited when qualifying individuals under the field party experience option. OR Possess at least two years sub-professional experience.
Sub-professional experience is defined as technical work performed in support of field or laboratory investigations relating to the biological sciences, physical sciences, or closely related disciplines which provided basic knowledge or skills in gathering, recording, and assembling scientific or engineering data; using scientific instruments to measure angles, degrees, weights, strengths, intensities, etc.; setting up and operating test apparatus, and manipulating quantitative data.
Experience may include assisting professional employees with such duties as calibrating and operating measuring instruments mixing solutions, making chemical analyses, setting up and operating test apparatus, and compiling and processing scientific data.
Experience as a laboratory mechanic or in a trade or craft may be credited as experience when the work was performed in close association with physical or biological scientists or other technical personnel and provided a good working knowledge of appropriate scientific principles, methods, and techniques.
Note: Professional work experience in the physical and biological sciences may be credited in lieu of or in conjunction with sub-professional experience as defined above.
OR Possess at least1 year college study (with 18 hours of graduate level course work or equivalent) plus 3 months of lab or field work experience.
Please note that if qualifying based on education; unofficial transcripts MUST be submitted as part of the application in order to receive consideration.
You must meet all qualification and eligibility requirements for the position by the closing date of the announcement. Major Duties:
CONTINUED FROM SUMMARY SECTION: All qualified applicants with or without Federal status may apply and be considered.
Appointment to this position, however, will not convey permanent status in the Federal service.
Resume Length: Resumes must not exceed two single-sided pages and resumes longer than two pages will not be accepted. The minimum font size is 10-point for all body text.
Headers may be slightly larger but must remain legible. All resumes must maintain a minimum 0.5-inch margins on all sides to ensure readability and prevent excessive content compression.
Including supplemental pages or attachments disguised as resume extensions are prohibited and will not be reviewed to determine your eligibility/qualifications.
DUTIES: As a Hydrologic Technician, some of your specific duties will include: {Use short, concise bullets, no more than 5-6.
Don't copy directly from the PD or Job Analysis} Collects surface-water, ground-water, and quality-water data from gaging stations, wells, or water quality monitoring stations.
Assess site locations and field equipment. Performs laboratory analysis of water samples to determine specified sediment, chemical, or biological concentrations or physical characteristics.
Operates a government motor vehicle as an incidental driver.
Physical Demands: The work regularly requires considerable dexterity, agility, and strenuous physical exertion such as that needed to: climb, or work from, tall ladders or scaffolding; work in areas where footing is treacherous such as on slippery river banks, in steep or rocky terrain, and in fast-moving water; lift heavy objects weighing 23 kilograms (over 50 pounds) or more; crouch or crawl in constricted areas; and defend oneself or others against physical attack.
Work Environment: The work is performed outdoors, and involves moderate or sometimes extreme exposure to the discomforts of rain, cold/hot weather, and rapidly running or icy stream and rivers.
Special safety precautions are required in many cases, and the employee typically wears life jackets, special safety boots, waders, and reflective rain gear.
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