Seismic refraction survey of Pleistocene drainage channels in the lower Great Miami River Valley, Ohio

Watkins, John J.; Spieker, Andrew Maute

doi:10.3133/pp605b

Cited by 13 publications

(6 citation statements)

References 13 publications

(14 reference statements)

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“…The site footprint is approximately 85 ha. Historical site documents indicate that the former refinery is situated in a glacial valley incised into shale bedrock and partially filled with glacial outwash and fluvial deposits (Spieker and Durrell, 1961; Spieker, 1968; Watkins and Spieker, 1971). The fluvio‐glacial aquifer is composed of coarse sediment ranging from approximately 6 to 30 m in thickness.…”

Section: Methodsmentioning

confidence: 99%

Spatial and Temporal Variation in Natural Source Zone Depletion Rates at a Former Oil Refinery

Eichert¹,

McAlexander²,

Lyverse

et al. 2017

Vadose Zone Journal

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Understanding the implications of vadose zone processes across spatial and temporal scales is challenging. At petroleum release sites, biodegradation of hydrocarbon compounds contributes to biogeochemical cycling through natural source zone depletion (NSZD). Considerable gaps remain in characterization at large sites. An evaluation of NSZD rates at a >80ha decommissioned oil refinery was conducted using a dynamic closed chamber (DCC). Across the site, we characterized spatial variability and compared radiocarbon ( 14 C) and background-corrected NSZD rate estimates. At a high-resolution (0.5-ha) area, temporal variability in NSZD rate estimates was characterized and a method comparison was conducted for DCC, the concentration gradient method (CGM), and CO 2 traps. The spatial variability of sitewide NSZD rates was significantly different from smear zone thickness, suggesting that additonal factors affect NSZD variability at a sitewide scale. The estimated sitewide average NSZD rate using the locationspecific 14 C correction was significantly different from the average by the background correction method (1.2 vs. 3.0 mmol CO 2 m −2 s −1 , respectively). In the high-resolution area, NSZD rates estimated by DCC varied temporally across seasonal and daily time scales. Higher temperatures were correlated with increased NSZD, and precipitation was important in dampening effluxes following rain events. The method comparison identified high sensitivity of the CGM vs. the other methods to input parameters, while CO 2 traps showed relatively high intersample variability. Possible limitations to DCC, including measurement timeframe and 14 C sampling method, were considered. The findings assist in setting NSZD expectations at other large sites.

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Section: Methodsmentioning

confidence: 99%

Spatial and Temporal Variation in Natural Source Zone Depletion Rates at a Former Oil Refinery

Eichert¹,

McAlexander²,

Lyverse

et al. 2017

Vadose Zone Journal

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show abstract

“…This method has been used to map depth to the water table and depth to bedrock in many glacialaquifer reconnaissance studies (Warrick and Winslow, 1960;Gill and others, 1965;Lennox and Carlson, 1967;Watkins and Spieker, 1971;Dickerman and Johnston, 1977;Sharp and others, 1977;Haeni and Anderson, 1980;Mazzaferro, 1980;Fretwell and Stewart, 1981;Grady and Handman, 1983;Tolman and others, 1983;Haeni and Melvin, 1984;Ayers, 1989;Ayotte, 1989;Moore, 1990;Melvin and Bingham, 1991) and in a few simulation studies (Birch, 1976;Haeni, 1978;Morrissey, 1983;Haeni, 1986a;Mazzaferro, 1986;Toppin, 1987;Tepper and others, 1990).…”

Section: Previous Studiesmentioning

confidence: 99%

Application of surface-geophysical methods to investigations of sand and gravel aquifers in the glaciated Northeastern United States

Haeni¹

1995

Professional Paper

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“…An average porosity of 0.32 was determined from laboratory measurements of bulk and particle mass density on splitspoon borehole samples. The unconsolidated deposits range from 20 to 40 ft (6 to 12 m) in thickness and overlie shale bedrock (Watkins and Spieker, 1968). Figure 2 denote lateral boundaries between the unconfined aquifer and upland surfaces that are underlain by glacial till or shale bedrock (Spieker, 1968).…”

Section: Integrating Gis and Network Designmentioning

confidence: 99%

APPLICATION OF GEOGRAPHIC INFORMATION SYSTEMS TO GROUNDWATER MONITORING NETWORK DESIGN¹

Hudak¹,

Loáiciga²,

Schoolmaster

1993

J American Water Resour Assoc

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Effective monitoring configurations for contaminant detection in groundwater can be designed by analyzing the spatial relationships between candidate sampling sites and aquifer zones susceptible to contamination. Examples of such zones are the domain underlying the contaminant source, zones of probable contaminant migration, and areas occupied by water supply wells. Geographic information systems (GIS) are well‐suited to performing key groundwater monitoring network design tasks, such as calculating values for distance variables which quantify the proximity of candidate sites to zones of high pollution susceptibility, and utilizing these variables to quantify relative monitoring value throughout a model domain. Through a case study application, this paper outlines the utility of GIS for detection‐based groundwater quality monitoring network design. The results suggest that GIS capabilities for analyzing spatially referenced data can enhance the field‐applicability of established methodologies for groundwater monitoring network design.

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Seismic refraction survey of Pleistocene drainage channels in the lower Great Miami River Valley, Ohio

Cited by 13 publications

References 13 publications

Spatial and Temporal Variation in Natural Source Zone Depletion Rates at a Former Oil Refinery

Spatial and Temporal Variation in Natural Source Zone Depletion Rates at a Former Oil Refinery

Application of surface-geophysical methods to investigations of sand and gravel aquifers in the glaciated Northeastern United States

APPLICATION OF GEOGRAPHIC INFORMATION SYSTEMS TO GROUNDWATER MONITORING NETWORK DESIGN¹

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Seismic refraction survey of Pleistocene drainage channels in the lower Great Miami River Valley, Ohio

Cited by 13 publications

References 13 publications

Spatial and Temporal Variation in Natural Source Zone Depletion Rates at a Former Oil Refinery

Spatial and Temporal Variation in Natural Source Zone Depletion Rates at a Former Oil Refinery

Application of surface-geophysical methods to investigations of sand and gravel aquifers in the glaciated Northeastern United States

APPLICATION OF GEOGRAPHIC INFORMATION SYSTEMS TO GROUNDWATER MONITORING NETWORK DESIGN1

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APPLICATION OF GEOGRAPHIC INFORMATION SYSTEMS TO GROUNDWATER MONITORING NETWORK DESIGN¹