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Joseph M. Fenelon

Publications and source records attributed to Joseph M. Fenelon.

25 records · Page 2Linked to original sources
USGS1999

Geohydrology of monitoring wells drilled in Oasis Valley near Beatty, Nye County, Nevada, 1997

Twelve monitoring wells were installed in 1997 at seven sites in and near Oasis Valley, Nevada. The wells, ranging in depth from 65 to 642 feet, were installed to measure water levels and to collect water-quality samples. Well-construction data and geologic and geophysical logs are presented in this report. Seven geologic units were identified and described from samples collected during the drilling: (1) Ammonia Tanks Tuff; (2) Tuff of Cutoff Road; (3) tuffs, not formally named but informally referred to in this report as the 'tuff of Oasis Valley'; (4) lavas informally named the 'rhyolitic lavas of Colson Pond'; (5) Tertiary colluvial and alluvial gravelly deposits; (6) Tertiary and Quaternary colluvium; and (7) Quaternary alluvium. Water levels in the wells were measured in October 1997 and February 1998 and ranged from about 18 to 350 feet below land surface. Transmissive zones in one of the boreholes penetrating volcanic rock were identified using flowmeter data. Zones with the highest transmissivity are at depths of about 205 feet in the 'rhyolitic lavas of Colson Pond' and 340 feet within the 'tuff of Oasis Valley.'

Nevada↗
USGS1996

Occurrence of pesticides in ground water in the White River Basin, Indiana, 1994–95

Pesticides (herbicides and insecticides) are used extensively in the White River Basin. Application of herbicides to corn and soybeans accounts for most of the use. The U.S. Geological Survey collected samples from four networks of monitoring wells in the White River Basin during 1994-95. The most frequently detected compounds in ground water were desethyl atrazine (a breakdown product of atrazine) and the commonly used herbicides, atrazine and metolachlor. Insecticides commonly used in urban and agricultural areas were not found. The highest concentration of any pesticide detected was alachlor at 0.19 micrograms per liter. Most detections of atrazine and desethyl atrazine were in agricultural areas overlying fluvial deposits, which are vulnerable to pesticide contamination, but the concentrations were small (less than 0.1 microgram per liter).

Indiana↗
USGS1996

Occurrence of nitrate in ground water in the White River Basin, Indiana, 1994–95

Nitrogen-based fertilizers are used extensively in the White River Basin. Water samples were collected for nitrate analysis from 103 monitoring wells in four networks in the basin. Ninety-four "shallow" wells were screened near the top of the uppermost aquifer encountered; the remaining 9 wells were paired with shallow wells but screened 18 to 45 feet deeper. Samples from 6.4 percent of the shallow wells exceeded the U.S. Environmental Protection Agency's Maximum Contaminant Level of 10 mg/L (milligrams per liter). Elevated nitrate concentrations (higher than 3 mg/L) were common in unconfined, permeable deposits underlying agricultural areas; nitrate concentrations decreased with depth in these deposits. Low nitrate concentrations (less than 0.05 mg/L) were found in aquifers confined by clay-rich tills that retard downward movement of nitrate and oxygen into the ground water.

Indiana↗
USGS1996

Radon in the fluvial aquifers of the White River Basin, Indiana, 1995

Water samples collected in 1995 from 57 monitoring wells (48 shallow and 9 deep) in the fluvial aquifers of the White River Basin were analyzed for radon. Radon concentrations in the shallow wells ranged from 140 to 1,600 pCi/L (picocuries per liter); the median concentration was 420 pCi/L. In comparison, analyses of the samples from the nine deep wells indicate that radon concentrations decrease with depth within the fluvial aquifers; the median concentration was 210 pCi/L. No areal trends in radon concentrations are evident in the water of the shallow fluvial aquifers of the basin.

Indiana↗
USGS1996

Occurrence of volatile organic compounds in ground water in the White River Basin, Indiana, 1994–95

Water samples collected in 1994 and 1995 from 100 monitoring wells (91 shallow and 9 deep) screened in shallow unconsolidated aquifers in the White River Basin were analyzed for 58 volatile organic compounds (VOC’s). Twelve different VOC’s were detected. Chloroform was the most commonly detected VOC (found in 12 wells), whereas the highest measured VOC concentration was 39 micrograms per liter of 1,1-dichloroethane. No VOC had a measured concentration in ground water that exceeded a U.S. Environmental Protection Agency national drinking-water standard or guideline. Slightly more than fifty percent of the shallow wells in urban settings, as compared to six percent of the shallow wells in agricultural settings, had at least one VOC detected.

Indiana↗
USGS1994

Hydrogeologic atlas of aquifers in Indiana

Aquifers in 12 water-management basins of Indiana are identified in a series of 104 hydrogeologic sections and 12 maps that show the thickness and configuration of aquifers. The vertical distribution of water-bearing units and a generalized potentiometric profile are shown along 3,500 miles of section lines that were constructed from drillers' logs of more than 4,200 wells. The horizontal scale of the sections is 1:125,000. Maps of aquifers showing the areal distribution of each aquifer type were drawn at a scale of 1:500,000. Unconsolidated aquifers are the most widely used aquifers in Indiana and include surficial, buried, and discontinuous layers of sand and gravel. Most of the surficial sand and gravel is in large outwash plains in northern Indiana and along the major rivers. Buried sand and gravel aquifers are interbedded with till deposits in much of the northern two-thirds of Indiana. Discontinuous sand and gravel deposits are present as isolated lenses, primarily in glaciated areas. The bedrock aquifers generally have lower yields than most of the sand and gravel aquifers; however, bedrock aquifers are areally widespread and are an important source of water. Bedrock aquifer types consist of carbonates; sandstones; complexly interbedded sandstones, siltstones, shales, limestones, and coals; and an upper weathered zone in low permeability rock. Carbonate aquifers underlie about one-half of Indiana and are the most productive of the bedrock aquifers. The other principal bedrock aquifer type, sandstone, underlies large areas in the southwestern one-fifth of Indiana. No aquifer is known to be present in the southeastern corner of Indiana.

Water-Resources Investigations Report↗