Hawthorne Army Depot Groundwater Monitoring

Hawthorne Army Depot Groundwater Monitoring Well Installation & Sampling Hawthorne, Nevada

The US Army Corps of Engineers (USACE) awarded Burleson two task orders to install groundwater monitoring wells at Hawthorne Army Depot. The monitoring wells were needed to better delineate a gasoline plume that resulted from an underground storage tank release, pipeline leak, and maintenance activities at one site and to better delineate a chlorinated solvent plume at another site.

For each site, Burleson prepared work plans, associated site-specific quality assurance project plans, and health and safety plans.

Burleson obtained monitoring well waivers from the Nevada Department of Environmental Protection.

Wells were installed using 4-inch diameter polyvinyl chloride pipe to a depth of about 90 feet below ground surface using hollow stem auger drilling techniques at one site and to depths of 240 feet below ground surface using sonic drilling techniques at the second site.

Burleson’s geologist logged soil borings in accordance with the Uniform Soil Classification System and oversaw the drillers, well development team, and surveyors.

Working closely with the USACE technical team, Burleson ensured that the down gradient plume edge was defined. At the first site, the four farthest down gradient monitoring wells were installed first, developed, and sampled with a rapid analytical turnaround time. Results indicated that the down gradient plume boundary was defined, and the remaining wells were therefore installed as originally planned.


  • Collected groundwater samples from the wells for total petroleum hydrocarbons as gasoline (TPH-G), volatile organic compounds, and petroleum constituent analyses
  • Validated sample results and prepared summary reports
  • Used data from existing and newly installed monitoring wells to define plume boundaries, evaluate natural attenuation, and make recommendations for future remediation activities
  • Coordinated disposal of investigation derived waste

Client Satisfaction

"Burleson Consulting was excellent to work with and very professional. They assembled a top-notch team of experts to study and propose solutions to the water supply challenges at Sutter National Wildlife Refuge. The communication was excellent throughout the project. This included project staff, contracting personnel, and interested stakeholders. As a result, the project was completed on time and on budget. I would not hesitate to use or recommend Burleson Consulting in the future."Kevin Clancy, Project Manager – United States Bureau of Reclamation

"Burleson provided exceptional services under this contract. Because of their successful work, they were awarded a $7M follow-on IDIQ contract in 2014, that also encompasses biological monitoring at former Fort Ord. They have consistently improved their plant material collection and propagation techniques and pass the savings onto the federal government. Burleson is a valuable team member on Fort Ord and I feel that they are true stewards of the environment." William K. Collins, BRAC Environmental Coordinator, US Army Corps of Engineers

"Burleson has been able to work with several government agencies (to include tribal groups and natural resource trustees) and several responsible parties to assist in progressing this site to a stage where technical and agency concerns can be identified and resolved. Strengths – overall and in depth understanding of mine site and CERCLA dynamics. Deficiencies – none. I would not hesitate to use Burleson." Daniel McMindes, USACE Liaison to EPA, US Army Corps of Engineers

"Burleson helped to manage the Sacramento Area Voltage Support Environmental Impact Statement. They came through and were always available during an ‘energy crisis’ in California. I will continue to work with them."Loreen McMahon, Project Manager - California Public Utilities Commission

"We appreciated Burleson’s great work, re: completing the draft EIR on the scheduled date (it was a tremendous task, but they completed it). All of them put a lot of work into it (it was a true team effort). They should all be proud of this accomplishment given the changes and obstacles encountered along the way, and I cannot thank them enough."Glenn M. Shuder, AIA, CFM, Chief Architect - Project Director, SMUD

"We chose Burleson Consulting because of their experience with the specific project matter in technical and regulatory issues and for their record of excellent communication skills in complex, multiparty projects. They were responsive to the matter and were sensitive to all relationships between the parties involved."Kevin Mayer, PE, Project Manager - USEPA