Cadmium and Hexavalent Chromium in Nassau County Ground Water
1964; Wiley; Volume: 56; Issue: 6 Linguagem: Inglês
10.1002/j.1551-8833.1964.tb01265.x
ISSN1551-8833
AutoresMaxim Lieber, Nathaniel M. Perlmutter, Henry L. Frauenthal,
Tópico(s)Analytical chemistry methods development
ResumoIn 1962 it was decided to reevaluate the effect of groundwater flow on the concentration of hexavalent chromium and cadmium heavy‐metal contaminants. U.S. Geologic Survey (USGS) joined Nassau County, New York, as an active participant in this study. Test wells were located on the streets where previous investigations had taken place. These streets, at right angles to the direction of groundwater flow, are just south of the recharge basins from which the contamination originated. The data accumulated were therefore comparable with those obtained in previous studies. Ninety test wells were constructed in and near the contaminated slug. The wells were driven by guiding a 200‐lb weight on top of a 5‐ft. coupled section of 1 1/4 in.‐diameter drive pipe with a standard point. The wel1s ranged in depth from 8‐75 ft; the final depths of the drive points were sufficient to determine the thickness of the contaminated slug at each location. Water samples were collected at 5‐ft. intervals below the water table. These samples and others periodically collected from the recharge basin and Massapequa Creek were analyzed for hexavalent chromium and cadmium.
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