Groundwater Hydrologist

Los Alamos, NM, United States
Position Type: 
Organization Type: 
Private Sector
Experience Level: 
Mid-Level (5-7 Years)
Degree Required: 
Advanced Degree (Master's or JD)


Please note: this job post has expired! To the best of our knowledge, this job is no longer available and this page remains here for archival purposes only.

Sealaska Technical Services (STS) is a critical subcontractor on the N3B Los Alamos LLC team and will be providing program management and technical services in support of the ground & surface water monitoring program at the U.S. Department of Energy’s Los Alamos National Laboratory.

STS is a full-service engineering and environmental consulting company with a worldwide reach in the areas of environmental monitoring and remediation, national security, systems engineering, data management and analytics for both federal and commercial customers. Sealaska is an Alaska Native Corporation founded in 1972 and established by the Alaska Native Claims Settlement Act. 

STS is currently seeking an experienced Groundwater Hydrologist to support the Water Programs in areas of groundwater investigation and remediation associated with the Los Alamos Legacy Cleanup Contract (LLCC) at the U.S. Department of Energy (DOE) National Nuclear Security Administration’s Los Alamos National Laboratory (LANL).


The successful candidate will function in a technical role for the LLCC to assist in site management strategies and play a significant role in the investigation and evaluation of potentially contaminated shallow and deep groundwater in the vadose zone and regional aquifer, and development of remediation strategies and plans. Contaminants of concern include both toxic chemical constituents and radionuclides.



  • Field investigation scoping
  • Development of data quality objectives
  • Work plan development
  • Supervising aquifer tests interpreting hydrologic data including pump and slug tests
  • Geophysical data and core samples
  • Performing analyses for determining groundwater flow regimes
  • Optimizing remediation scenarios and report preparation
  • This position will also provide an important interface with the groundwater modeling team


  • Duties include the review and ability to synthesize hydrogeological and environmental data from field investigations and technical reports
  • Development of conceptual site models including surface water/vadose zone/groundwater water interactions and contamination
  • Support the development of groundwater flow and transport models to support site characterization and environmental site remediation
  • Participate in the development and evaluation of remediation alternative.


  • Possess a MS or PhD in hydrology, engineering, hydrogeology, or a related field
  • 5+ years of experience in conducting groundwater field studies
  • Familiarity with common modeling codes including: Goldsim, FEHM, MODFLOW, MT3D, RT3D, and PHT3D
  • Experience developing groundwater remediation strategies and plans based on field studies and numerical models
  • Excellent oral and written communication skills
  • Strong technical writing skills
  • Possess team leadership potential, technical capabilities, and strong aptitude
  • Motivation, initiative, and attention to detail
  • Solid understanding of fundamentals of hydrogeology, geochemistry, flow in porous media, contaminant fate and transport in environmental media
  • Strong quantitative skills and ability to solve complex technical problems
  • Proficient in mathematical and statistical analysis of groundwater flow and solute transport


  • Familiarity with the LANL site, access requirements, general employee requirements, and work environment preferred
  • Complies with all health & safety policies and practices
  • Complies with all site access and security requirements
  • Individual must pass a pre-employment drug screen and accept all company policies.
  • This position may require a physical fit-for-duty screen as well

Working Conditions and Physical Requirements (Light Work)

  • While performing the duties of this job, the employee is regularly required to talk or hear. The noise level in the work environment is usually quiet to moderate

Light Work Category:

  • Physical demand requirements are in excess of those for sedentary work
  • The employee exerts up to 20 pounds of force occasionally and/or up to 10 pounds of force frequently, and/or negligible amount of force constantly to move objects
  • The employee is frequently required to stand; walk; sit; use hands to handle or feel, and reach with hands and arms
  • The employee is occasionally required to stoop, kneel, crouch, or crawl
  • Specific vision abilities required by this job include close vision and distance vision


  • This job description reflects management’s assignment of essential functions; and nothing in this herein restricts management’s right to assign or reassign duties and responsibilities to this job at any time
  • In this position the qualified candidate may support one of more of the following departments, Groundwater Monitoring, Surface Water Monitoring, Drilling, Storm Water Corrective Actions, and/or Remediation Services
  • The qualified candidate may be required to attain and maintain a DOE Q clearance
  • Individuals must be able to perform the essential functions of the job with or without reasonable accommodation
  • Individual must pass a pre-employment drug screen and accept all company policies
  • This position may require a physical fit-for-duty screen as well

We are an Equal Opportunity Employer and we do not discriminate based on race, color, religion, national origin, sex, disability, sexual orientation, or age.