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Government & Water Management
U.S. Geological Survey, U.S. Army Corps of Engineers, Bureau of Reclamation
Hydrologic Technicians
Hydrologic technicians collect and test water and soil samples, track stream and groundwater conditions, and help build models that show where flooding, pollution, or water shortages may go next. The work stands out because it combines field sampling in rough conditions with computer-based analysis and paperwork, and the main tradeoff is that careful, useful data often has to be gathered on someone else’s deadline, in weather you can’t control.
Also known as Hydrology TechnicianWater Resources TechnicianField Hydrologic TechnicianHydrologic Field TechnicianHydro Technician
Median Salary
$58,570
Mean $64,410
U.S. Workforce
~3K
0.4K openings per year
10-Year Growth
+-2.1%
3.1K to 3K
Entry Education
Associate's degree
+ None experience
What This Role Looks Like in Practice
Hydrologic Technicians sits in the Science category. In practical terms, this role combines day-to-day execution, cross-team coordination, and consistent decision-making under real business constraints.
U.S. employment is currently about ~3K workers, with a median annual pay of $58,570 and roughly 0.4K openings each year. Based on BLS projections, total employment is expected to decline from 3.1 K in 2024 to 3K in 2034.
Most hiring paths start with Associate's degree in environmental science, hydrology, geology, or water resources, and employers typically expect none of related experience. Many careers in this track begin around Environmental Field Technician and can progress toward Water Resources Manager. High-value skills usually include Water Sampling, Field Testing & Chain of Custody, ArcGIS, QGIS & Hydrology Mapping, and Hydrologic Modeling Software, paired with soft skills such as Attention to detail, Clear communication, and Problem solving.
Core Responsibilities
- Collect water and soil samples from streams, wells, and other sites, then check things like pH, temperature, oxygen, and signs of contamination.
- Review data on pollution, erosion, floods, and sediment buildup to understand how those problems are affecting lakes, rivers, and groundwater.
- Build or update computer models that help predict streamflow, flooding, water supply, or other hydrologic conditions.
- Answer technical questions from hydrologists, public officials, and other clients who are planning water conservation or cleanup projects.
Keep exploring: more Science careers or browse all job titles.
A Day in the Life
01 Collect water and soil samples from streams, wells, and other sites, then check things like pH, temperature, oxygen, and signs of contamination.
02 Review data on pollution, erosion, floods, and sediment buildup to understand how those problems are affecting lakes, rivers, and groundwater.
03 Build or update computer models that help predict streamflow, flooding, water supply, or other hydrologic conditions.
04 Answer technical questions from hydrologists, public officials, and other clients who are planning water conservation or cleanup projects.
05 Help plan or inspect work that seals abandoned wells so they do not become a source of contamination.
06 Estimate the costs and benefits of water-related public projects and gather facts when people file complaints about changes to public waters.
Industries That Hire
🌱
Environmental Consulting
AECOM, Jacobs, WSP
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Utilities & Public Water Systems
American Water, Veolia, Duke Energy
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Engineering & Infrastructure
Stantec, HDR, AtkinsRéalis
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Energy, Mining & Natural Resources
Chevron, Rio Tinto, Newmont
Pros and Cons
Advantages
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The pay is solid for an associate's-degree role, with a median of $58,570 and a mean of $64,410.
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You get a mix of fieldwork and desk work, so the job is rarely just sitting behind a screen all day.
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The work has clear real-world impact because it helps people manage floods, pollution, erosion, and water supplies.
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The barrier to entry is not extreme: no work experience is required, and the BLS lists moderate-term on-the-job training.
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The skills can transfer to government, consulting, utilities, and engineering firms, which gives you several directions to move in.
Challenges
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The job outlook is slightly negative, with employment projected to dip from 3.1K to 3.0K jobs, or -2.1%.
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Annual openings are limited at about 0.4K, so competition can be stiff even when the role is specialized.
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A lot of the work depends on public budgets, grant funding, and project cycles, which can make hiring uneven from year to year.
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Field conditions can be uncomfortable or risky: mud, cold weather, remote sites, and long days around water are part of the job.
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The career ceiling can be tight unless you move into hydrology, GIS, or management, and routine monitoring work is increasingly supported by sensors and software.
Career Progression
Environmental Field Technician
0-2 years
$35K-$45K
Learns sampling routines, basic equipment use, and field safety while helping gather data under close supervision.
Hydrologic Technician
2-5 years
$52K-$66K
Works more independently on sampling, data checks, modeling support, and communication with hydrologists or clients.
Senior Hydrologic Technician THIS ROLE
5-8 years
$67K-$82K
Handles harder sites, trains newer staff, and takes on more responsibility for models, reports, and project coordination.
Hydrologist
8-12 years
$83K-$108K
Leads analysis and interpretation of water systems, often using field data to guide planning, forecasting, and regulatory decisions.
Water Resources Manager
12+ years
$109K-$140K
Oversees teams, budgets, and long-range water planning for agencies, utilities, consulting firms, or infrastructure projects.
Education Paths
Associate's degree in environmental science, hydrology, geology, or water resources
This is the typical starting credential for the role, and the BLS lists an associate's degree as the usual entry point.
Bachelor's degree in environmental science, civil engineering, geology, or earth science
A bachelor's degree can make it easier to move into more modeling-heavy or project-focused work, especially when employers want deeper technical training.
Technical certificate or diploma in water quality, environmental technology, or GIS
A certificate can help candidates break into field sampling or monitoring jobs, especially when paired with hands-on lab or field experience.
Related field experience plus moderate-term on-the-job training
The BLS also notes moderate-term on-the-job training, so some workers learn the role after starting in a related environmental or utility job.
Key Skills
Technical
Water Sampling, Field Testing & Chain of Custody 92%
ArcGIS, QGIS & Hydrology Mapping 84%
Hydrologic Modeling Software 80%
Excel, Access & Environmental Data Logging 78%
Sensor Calibration & Monitoring Instrumentation 76%
Water Quality Standards, Reports & Compliance Documentation 72%
Soft Skills
Attention to detailClear communicationProblem solvingTeamworkField safety awarenessAnalytical thinking Job Outlook and Trends
+-2.1%
Projected growth (2024-2034)
0.4K
Annual job openings
Employment is projected to rise from 3.1K to 3 K over the next decade, representing -2.1% growth. Around 0.4 K openings per year include both newly created roles and replacement hiring from turnover.
Remote availability is currently Rare. Demand remains strongest where employers need practical domain knowledge plus modern workflow and data skills.