Hydrologic Technicians Career, Salary and Skills

Hydrologic Technicians have a BLS-reported national median annual wage of $64,790 based on the 2025 OEWS dataset, with reported national employment of 2,840. Wage data is published for 40 locations.

Occupation description

Collect and organize data concerning the distribution and circulation of ground and surface water, and data on its physical, chemical, and biological properties. Measure and report on flow rates and ground water levels, maintain field equipment, collect water samples, install and collect sampling equipment, and process samples for shipment to testing laboratories. May collect data on behalf of hydrologists, engineers, developers, government agencies, or agriculture.

O*NET code

19-4044.00

Job zone

3

Typical education

Not recorded

Experience

Not recorded

National salary and employment

Median annual

$64,790

Hourly median

$31.15

Employment

2,840

Data year

2025

National salary distribution

$44,950
10th
$52,040
25th
$64,790
Median
$84,680
75th
$100,480
90th

Typical tasks

  • Analyze ecological data about the impact of pollution, erosion, floods, and other environmental problems on bodies of water.
  • Answer technical questions from hydrologists, policymakers, or other customers developing water conservation plans.
  • Apply research findings to minimize the environmental impacts of pollution, waterborne diseases, erosion, or sedimentation.
  • Assist in designing programs to ensure the proper sealing of abandoned wells.
  • Collect water and soil samples to test for physical, chemical, or biological properties, such as pH, oxygen level, temperature, and pollution.
  • Develop computer models for hydrologic predictions.
  • Estimate the costs and benefits of municipal projects, such as hydroelectric power plants, irrigation systems, and wastewater treatment facilities.
  • Investigate complaints or conflicts related to the alteration of public waters by gathering information, recommending alternatives, or preparing legal documents.
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Technology

  • Adobe Acrobat
  • Datasurge GEOPRO
  • Delft GeoSystems MStab
  • Email software
  • ESRI ArcGIS software
  • ESRI ArcInfo
  • ESRI ArcView
  • GEO-SLOPE SEEP/W
  • Geographic information system GIS software
  • Geographic information system GIS systems
  • Microsoft Access
  • Microsoft Active Server Pages ASP
  • Microsoft Excel
  • Microsoft Office software
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Hydrologic Technicians salary by location

Areas with the highest reported employment for this occupation.

All 40 locations →

Related careers

Career and skills data: O*NET 31.0 (onetcenter.org). Salary and employment data: U.S. Bureau of Labor Statistics OEWS, 2025 (bls.gov/oes). Figures are published survey estimates, not real-time market data.