The dataset is comprised of: 1)VOC concentrations of soil gas and indoor air samples collected over the site; 2) the pressure readings used to monitor the pressure differential between subslab and indoor air.

The dataset is comprised of VOC concentrations of soil gas, outdoor and indoor air samples collected at the site for the duration of this study. This dataset is associated with the following publication: Zimmerman, J., A. Williams, B. Schumacher, C. Lutes, L. Levy, G. Buckley, V. Boyd, C. Holton, T. McAlary, and R. Truesdale. The Representativeness of Subslab Soil Gas Collection as Effected by Probe Construction and Sampling Methods. Groundwater Monitoring & Remediation. Wiley-Blackwell Publishing, Hoboken, NJ, USA, 44(3): 106-121, (2024).

The dataset is comprised of: 1)VOC concentrations of soil gas and indoor air samples collected over the site; 2) the pressure readings used to monitor the pressure differential between subslab and indoor air.

Between December 2020 and April 2022, samples were collected at six commercial buildings in Fairbanks, Alaska and between May 2019, to June 2021 at a large, compartmentalized warehouse at a coastal site in Virginia. Types of samples collected included: indoor air; outdoor air; SSSG; soil gas; radon; differential pressure; indoor and outdoor temperature; heating, ventilation, and air conditioning (HVAC) parameters; and other environmental factors.

There are 3 main databases. #1 is the VOC concentrations of soil gas and indoor air samples collected over the site. #2 is the pressure readings used to monitor the pressure differential between subslab and indoor air. #3 is the vacuum reading used to monitor effectiveness, strength, and reach of vacuum created during the SVE operation. This dataset is associated with the following publication: Schumacher, B., J. Zimmerman, C. Lutes, R. Truesdale, and C.W. Holton. Key Design Elements of Building Pressure Cycling for Evaluating Vapor Intrusion—A Literature Review. Groundwater Monitoring & Remediation. Wiley-Blackwell Publishing, Hoboken, NJ, USA, 39(1): 66-72, (2019).

There are 3 main databases. #1 is the VOC concentrations of soil gas and indoor air samples collected over the site. #2 is the pressure readings used to monitor the pressure differential between subslab and indoor air. #3 is the vacuum reading used to monitor effectiveness, strength, and reach of vacuum created during the SVE operation. This dataset is associated with the following publication: Schumacher, B., J. Zimmerman, C. Lutes, R. Truesdale, and C.W. Holton. Key Design Elements of Building Pressure Cycling for Evaluating Vapor Intrusion—A Literature Review. Groundwater Monitoring & Remediation. Wiley-Blackwell Publishing, Hoboken, NJ, USA, 39(1): 66-72, (2019).

There are 3 main databases. #1 is the VOC concentrations of soil gas and indoor air samples collected over the site. #2 is the pressure readings used to monitor the pressure differential between subslab and indoor air. #3 is the vacuum reading used to monitor effectiveness, strength, and reach of vacuum created during the SVE operation. This dataset is associated with the following publication: Stewart, L., C. Lutes, R. Truesdale, B. Schumacher, J. Zimmerman, and R. Connell. Field Study of Soil Vapor Extraction for Reducing Off‐Site Vapor Intrusion. Groundwater Monitoring & Remediation. Wiley-Blackwell Publishing, Hoboken, NJ, USA, 40(1): 74-85, (2020).

There are 3 main databases. #1 is the VOC concentrations of soil gas and indoor air samples collected over the site. #2 is the pressure readings used to monitor the pressure differential between subslab and indoor air. #3 is the vacuum reading used to monitor effectiveness, strength, and reach of vacuum created during the SVE operation. This dataset is associated with the following publication: Stewart, L., C. Lutes, R. Truesdale, B. Schumacher, J. Zimmerman, and R. Connell. Field Study of Soil Vapor Extraction for Reducing Off‐Site Vapor Intrusion. Groundwater Monitoring & Remediation. Wiley-Blackwell Publishing, Hoboken, NJ, USA, 40(1): 74-85, (2020).

There are 3 main databases. #1 is the VOC concentrations of soil gas and indoor air samples collected over the site. #2 is the pressure readings used to monitor the pressure differential between subslab and indoor air. #3 is the vacuum reading used to monitor effectiveness, strength, and reach of vacuum created during the SVE operation. This dataset is associated with the following publication: Lutes, C., L. Stewart, R. Truesdale, J. De Loeora, J. Zimmerman, and B. Schumacher. Cost Comparison of Soil Vapor Extraction and Subslab Depressurization for Vapor Intrusion Mitigation. GROUNDWATER MONITORING AND REMEDIATION. National Ground Water Association, Westerville, OH, USA, 42(4): 43-53, (2022).

The Highlands Acid Pit Superfund site (hereinafter referred to as "the site") is located on a peninsula on the eastern bank of the San Jacinto River in the town of Highlands in Harris County, Texas. The site is bordered by Grennel Slough to the west, Clear Lake to the south, flooded former sand pits to the northeast and east, and private properties to the north. During the 1950s, industrial waste from refinery operations was disposed of in an excavated sand pit at the site, resulting in contamination of soil and shallow groundwater. Historical and ongoing groundwater monitoring at the site has revealed that arsenic and benzene are present and exceed protective concentration levels. It is unknown if vapor migration from contaminated groundwater is occurring or if the site poses a vapor intrusion concern for private properties adjacent to the site. To evaluate the status of soil-gas quality, the U.S. Geological Survey (USGS), in cooperation with the U.S. Environmental Protection Agency (EPA), deployed and retrieved soil-gas samples from 43 discrete locations at the site in April 2025. This dataset includes soil-gas sample locations and environmental and quality-control soil-gas data sampling results for a suite of volatile organic compounds at the site.