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James K Stack

Hydrologic Technician
Email: jstack@usgs.gov
Office Phone: 808-690-9564
Fax: 808-690-9599
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This U.S. Geological Survey (USGS) Data Release describes field methods, lab methods, and data for groundwater and soil gas samples collected in the vicinity of the Red Hill Bulk Fuel Storage Facility, O‘ahu, Hawai‘i, from September 2022 through April 2023. The Red Hill facility consists of 20 underground fuel storage tanks that can each hold approximately 12.5 million gallons of fuel and are connected through a network of service tunnels and fuel pipelines. The data in this release were collected to understand better the distribution and directional flow of ancient carbon from past petroleum releases in the subsurface at the Red Hill Bulk Fuel Storage Facility. Table 1 of this data release contains site and sample...
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From 2018 to 2024 surface waters (fresh and brackish), groundwater, and stormwater (runoff, re-use) samples were collected from sites with varying landuse (agricultural, forested, and urban) and streamflow conditions and analyzed at the Organic Geochemistry Research Laboratory in Lawrence, Kansas for the tire antioxidant 6PPD (6-p-phenylenediamine; N-(1,3-Dimethylbutyl)-N’-phenyl-p-phenylenediamine) and ozonated transformation product 6PPD-quinone (6PPD-Q, 2-((4-Methylpentan-2-yl)amino)-5-(phenylamino)cyclohexa-2,5-diene-1,4-dione)). There were 78 urban sampling sites in Colorado (N=15), Connecticut (N=1), Georgia (N=1), Hawaii (N=22), Kansas (N=7), Michigan (N=1), Minnesota (N=1), North Carolina (N=1), Oklahoma...
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