John Crothers Fountain

Works (5)

Updated: April 5th, 2024 03:31

2008 journal article

Nitrate contamination in groundwater on an urbanized dairy farm

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 42(13), 4683–4688.

By: W. Showers n, B. Genna n, T. McDade n, R. Bolich n & J. Fountain n

MeSH headings : Bromides / analysis; Chlorides / analysis; Dairying; Environmental Monitoring / statistics & numerical data; Flow Injection Analysis; Magnetics; Nitrates / analysis; Nitrogen Isotopes / analysis; North Carolina; Urban Renewal; Water Pollutants, Chemical / analysis; Water Supply / analysis
TL;DR: The isotope and Cl/Br ratios indicate that nitrate contamination in these drinking wells are not from septic systems, but are the result of animal waste leached from pastures into groundwater during 35 years of dairy operations which did not violate any existing regulations. (via Semantic Scholar)
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11. Sustainable Cities and Communities (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2007 journal article

Examining the utility of epoxy replicas of single, natural fractures in dolostone for visualization experiments

HYDROGEOLOGY JOURNAL, 16(1), 43–53.

By: E. Bergslien * & J. Fountain n

author keywords: fractured rocks; groundwater flow; physical modeling; aperture statistics
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Source: Web Of Science
Added: August 6, 2018

2006 journal article

The effect of changes in surface wettability on two-phase saturated flow in horizontal replicas of single natural fractures

JOURNAL OF CONTAMINANT HYDROLOGY, 88(3-4), 153–180.

By: E. Bergslien * & J. Fountain*

author keywords: multiphase flow; non-aqueous phase liquids; NAPL; fracture flow; fracture modeling
MeSH headings : Epoxy Resins / chemistry; Geological Phenomena; Geology; Models, Theoretical; Polystyrenes / chemistry; Surface Properties; Surface-Active Agents / chemistry; Thermodynamics; Water / chemistry; Water Movements; Water Pollutants, Chemical / chemistry; Wettability
TL;DR: Detailed characterization of epoxy reveals that it is not a sufficiently good analogue to natural rock for many two-phase flow studies, and there was generally good agreement between theoretically calculated Young-Laplace aperture invasion boundaries and the observed minimum apertures invaded. (via Semantic Scholar)
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Source: Web Of Science
Added: August 6, 2018

2005 journal article

Nitrate movement in shallow ground water from swine-lagoon-effluent spray fields managed under current application regulations

JOURNAL OF ENVIRONMENTAL QUALITY, 34(5), 1828–1842.

By: D. Israel n, W. Showers n, M. Fountain n & J. Fountain n

MeSH headings : Animals; Environmental Monitoring / legislation & jurisprudence; Environmental Monitoring / statistics & numerical data; Fresh Water / chemistry; Manure / analysis; Nitrates / analysis; Nitrogen Isotopes / analysis; North Carolina; Oxygen Isotopes / analysis; Sus scrofa; Water Movements; Water Pollutants, Chemical / analysis
TL;DR: Measurement of delta18O and delta15N enrichment of nitrate in ground water throughout the WAF-riparian system indicated that denitrification has not caused significant 15N enrichment and delivery of some waste-derived nitrate N to the stream in shallow ground water. (via Semantic Scholar)
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6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2004 journal article

Characterization of the surface properties of epoxy-type models used for multiphase flow studies in fractured media and creation of a new model

WATER RESOURCES RESEARCH, 40(5).

By: E. Bergslien *, J. Fountain n & R. Giese*

author keywords: fracture mechanics; hydrogeology; surface chemistry
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Source: Web Of Science
Added: August 6, 2018

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