NASA Remediation Services

Client: NASA Goddard Space Flight Center (GSFC)

Location: Greenbelt, Maryland

Services: Remedial investigations, feasibility studies, geotechnical services, UST closures

As part of a $1 million Indefinite Quantity Contract for environmental and remediation services with NASA, KCI has provided numerous remediation services for the proposed expansion of the Goddard Space Flight Center campus.

Pistol and Rifle Range Engineering Evaluation/Cost Analysis (EE/CA) for Remediation Alternatives – KCI performed an EE/CA in accordance with the 1993 USEPA document entitled, Guidance on Conducting Non-Time-Critical Removal Actions Under CERCLA. The scope of work included site investigation; screening of concentrations of constituents against regulatory criteria; identification of removal action objectives; identification of appropriate remediation technologies; and selection of the most appropriate remediation technology and approach.

KCI performed a soil sample investigation that indicated that total and TCLP lead concentrations exceeded regulatory guidance values. KCI performed an initial screening of twenty-two (22) remedial technologies and process options to determine the removal alternatives that were most suited to meet the removal action objectives. Based on the results of the initial screening, six removal alternatives were retained for detailed analysis. Alternatives were analyzed for three criteria: effectiveness, implementation, and cost. Based on the results of the analysis of two alternatives, Physical Separation/Solidification/Stabilization and Physical Separation/Soil Washing were determined to be best suited to meet the removal action objectives.

Geotechnical Investigation of an Inactive Landfill – KCI performed a preliminary geotechnical exploration of an inactive landfill. The purpose was to assess the overall suitability of the landfill site for construction of a lightly loaded building or paved parking lot, and to assess whether excessive settlement could occur following construction of a facility. The scope of services for this project consisted of installation of 5 SPT borings, laboratory testing of soil samples for geotechnical engineering analysis, headspace analysis for volatile organic compounds (VOCs) and methane gas, and engineering analysis of the data. In support of separate environmental studies, three of the five soil borings were converted into 2-inch groundwater monitoring wells. Investigative work was performed in Level-D, under a site specific, CIH-approved, Health and Safety Plan.

Direct Push Technology (DPT) Groundwater Investigation – The purpose of the DPT investigation was to further assess the potential source and the extent of TCE contamination in the groundwater in the vicinity of two inactive landfills. Groundwater samples were collected at depths ranging from 20 to 60 feet below the surface using a truck mounted hydraulic hammer used to drive a steel rod with a stainless steel probe attached into the groundwater table at each selected location. Samples were analyzed by gas chromatograph via USEPA Method 8010-M for eleven chlorinated volatile organic compounds, including TCE and C1, 2-DCE.

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