Claire R. Tiedeman

Groundwater tracing experiments conducted in the mudstone aquifer underlying the former Naval Air Warfare Center, West Trenton, NJ (2007-2008)

This data set presents results from two groundwater tracing experiments conducted in the mudstone aquifer underlying the former Naval Air Warfare Center (NAWC), West Trenton, NJ. In each test, a bromide solution was introduced into a hydraulically isolated section of borehole 36BR (denoted as 36BR-A); the hydraulically isolated section of the borehole isolated specific bedding plane parting fractures intersecting the borehole 36BR. In the first test, initiated in July 2007, water samples were collected from borehole 15BR; borehole 15BR is outfitted with a submersible pump operating continuously as part of the pump-and-treat operation at the NAWC to prevent off-site migration of groundwater contaminants. In the second tracer test, initiated in September 2008, groundwater samples were collected from a hydraulically isolated section of borehole 73BR (denoted as 73BR-D2); a peristaltic pump was used extract groundwater from the selected interval. In each test, the groundwater samples were analyzed for the concentration of bromide using ion chromatography.

Biogeochemical analyses of water samples collected in the mudstone aquifer underlying the Naval Air Warfare Center, West Trenton, NJ (2008-2013)

This data set presents results from the analyses of groundwater water samples collected from monitoring wells and monitoring intervals in bedrock wells in the mudstone aquifer underlying the former Naval Air Warfare Center (NAWC), West Trenton, NJ. The water samples were collected between 2008 and 2013 and were analyzed for field parameters, inorganic and organic constituents, and the abundances of selected microbes of importance to the evaluation of biological degradation of organic contaminants in groundwater. The collection and analyses of the groundwater samples coincides with conducting a bioaugmentation experiment in a targeted region of the mudstone aquifer. The purpose of the bioaugmentation was to introduce and stimulate microbial species that are capable of degrading trichloroethene (TCE). The bioaugmentation experiment was initiated in October 2008. Samples were collected in wells prior to the start of the experiment and for a period of 5 years after the experiment was initiated.

MODFLOW-2005 and MT3DMS models used to design and evaluate a bioremediation experiment at the former Naval Air Warfare Center, West Trenton, NJ

MODFLOW-2005 groundwater flow models and MT3DMS solute transport models were developed to represent conditions in the vicinity of a bioremediation experiment conducted in fractured rocks underlying the former Naval Air Warfare Center, West Trenton, New Jersey. The groundwater flow models include transient simulations of water-level changes during six field aquifer tests and steady-state simulations of hydraulic head at the site. The solute transport models include simulations of bromide tracer transport and of injection conditions during the bioremediation experiment. ZoneBudget and MODPATH were used for postprocessing analyses of flow modeling output. UCODE_2014 was used to calibrate the flow models and to conduct uncertainty analyses.