{"pageNumber":"313","pageRowStart":"7800","pageSize":"25","recordCount":16506,"records":[{"id":47457,"text":"wri034042 - 2003 - Determination of upstream boundary points on southeastern Washington streams and rivers under the requirements of the Shoreline Management Act of 1971","interactions":[],"lastModifiedDate":"2012-02-02T00:10:38","indexId":"wri034042","displayToPublicDate":"2003-05-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2003-4042","title":"Determination of upstream boundary points on southeastern Washington streams and rivers under the requirements of the Shoreline Management Act of 1971","docAbstract":"Regulation of the shorelines of the State of Washington, as mandated by the Shoreline Management Act of 1971, requires knowledge of the locations on streams and river reaches where specific regulatory criteria are satisfied. The U.S. Geological Survey conducted a study in 1971 to determine the upstream boundary points of these reaches for many of the State's streams and rivers. Updated upstream boundary points were determined in the current study for all the streams and rivers in southeastern Washington that fall under the jurisdiction of the Shoreline Management Act of 1971. Upstream boundary point locations where the mean annual discharge equals 20 cubic feet per second were determined for 149 streams. In addition, upstream boundary point locations where the mean annual discharge equals 200 cubic feet per second or the drainage area equals 300 square miles were determined for 22 rivers. \r\n\r\nBoundary point locations were determined by application of multiple-linear-regression equations that relate mean annual discharge to drainage area and mean annual precipitation. Southeastern Washington was divided into five hydrologically distinct regions, and a separate regression equation was developed for each region. The regression equations are based on data for gaging stations with at least 10 years of record. The number of stations in the regression analysis for each of the five regions ranged from 5 to 33. The coefficient of determination, R2, of the regression equations ranged from 0.953 to 0.997. The equation for the Upper Yakima region had the lowest standard error, ranging from -7 to +9 percent for a regression estimate of 20 cubic feet per second. The equation for the Columbia Basin to Palouse region had the highest standard error, ranging from -36 to +55 percent for a regression estimate of 20 cubic feet per second. The approximate error in the location of an upstream boundary point can be calculated using the variables mean annual precipitation of the basin upstream from a boundary point and average basin width in the vicinity of the boundary point. The calculation gives only a rough estimate of the error of the boundary point location, because of the uncertainty in estimating average basin width.","language":"ENGLISH","doi":"10.3133/wri034042","usgsCitation":"Higgins, J.L., 2003, Determination of upstream boundary points on southeastern Washington streams and rivers under the requirements of the Shoreline Management Act of 1971: U.S. Geological Survey Water-Resources Investigations Report 2003-4042, 18 p., 1 over-size sheet, https://doi.org/10.3133/wri034042.","productDescription":"18 p., 1 over-size sheet","costCenters":[],"links":[{"id":3984,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wri034042/","linkFileType":{"id":5,"text":"html"}},{"id":173317,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4ce4b07f02db6269ec","contributors":{"authors":[{"text":"Higgins, Johnna L. jhiggins@usgs.gov","contributorId":3091,"corporation":false,"usgs":true,"family":"Higgins","given":"Johnna","email":"jhiggins@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":235420,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70164412,"text":"70164412 - 2003 - Pharmaceuticals, hormones, personal-care products, and other organic wastewater contaminants in water resources: Recent research activities of the U.S. Geological Survey's toxic substances hydrology program","interactions":[],"lastModifiedDate":"2022-06-06T15:17:56.358769","indexId":"70164412","displayToPublicDate":"2003-04-01T14:15:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5050,"text":"Geohealth News","active":true,"publicationSubtype":{"id":10}},"title":"Pharmaceuticals, hormones, personal-care products, and other organic wastewater contaminants in water resources: Recent research activities of the U.S. Geological Survey's toxic substances hydrology program","docAbstract":"

Recent decades have brought increasing concerns for potential contamination of water resources that could inadvertently result during production, use, and disposal of the numerous chemicals offering improvements in industry, agriculture, medical treatment, and even common household products. Increasing knowledge of the environmental occurrence or toxicological behavior of these contaminants from various studies in Europe, United States, and elsewhere has resulted in increased concern for potential adverse environmental and human health effects (Daughton and Ternes, 1999). Ecologists and public health experts often have incomplete understandings of the toxicological significance of many of these contaminants, particularly long-term, low-level exposure and when they occur in mixtures with other contaminants (Daughton and Ternes, 1999; Kümmerer, 2001). In addition, these ‘emerging contaminants’ are not typically monitored or assessed in ambient water resources. The need to understand the processes controlling the transport and fate of these contaminants in the environment, and the lack of knowledge of the significance of long-term exposures have increased the need to study environmental occurrence down to trace (nanogram per liter) levels. Furthermore, the possibility that mixtures of environmental contaminants may interact synergistically or antagonistically has increased the need to characterize the types of mixtures that are found in our waters. The U.S. Geological Survey’s Toxic Substances Hydrology Program (Toxics Program) is developing information and tools on emerging water-quality issues that will be used to design and improve water-quality monitoring and assessment programs of the USGS and others, and for proactive decision-making by industry, regulators, the research community, and the public (http://toxics.usgs.gov/regional/emc.html). This research on emerging water-quality issues includes a combination of laboratory work to develop new analytical capabilities as well as field work on the occurrence, fate, and effects of these contaminants.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Focazio, M.J., Kolpin, D.W., and Buxton, H.T., 2003, Pharmaceuticals, hormones, personal-care products, and other organic wastewater contaminants in water resources: Recent research activities of the U.S. Geological Survey's toxic substances hydrology program: Geohealth News, v. 2, no. 1, p. 3-7.","productDescription":"5 p.","startPage":"3","endPage":"7","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":351,"text":"Iowa Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":323924,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":401751,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://www2.usgs.gov/envirohealth/geohealth/pdfs/vol2_no1_web.pdf","size":"14,468 KB","linkFileType":{"id":1,"text":"pdf"}}],"volume":"2","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57651f39e4b07657d19c7913","contributors":{"authors":[{"text":"Focazio, Michael J. 0000-0003-0967-5576 mfocazio@usgs.gov","orcid":"https://orcid.org/0000-0003-0967-5576","contributorId":1276,"corporation":false,"usgs":true,"family":"Focazio","given":"Michael","email":"mfocazio@usgs.gov","middleInitial":"J.","affiliations":[{"id":38175,"text":"Toxics Substances Hydrology Program","active":true,"usgs":true},{"id":5056,"text":"Office of the AD Energy and Minerals, and Environmental Health","active":true,"usgs":true}],"preferred":true,"id":597176,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kolpin, Dana W. 0000-0002-3529-6505 dwkolpin@usgs.gov","orcid":"https://orcid.org/0000-0002-3529-6505","contributorId":1239,"corporation":false,"usgs":true,"family":"Kolpin","given":"Dana","email":"dwkolpin@usgs.gov","middleInitial":"W.","affiliations":[{"id":351,"text":"Iowa Water Science Center","active":true,"usgs":true}],"preferred":true,"id":597177,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Buxton, Herbert T. hbuxton@usgs.gov","contributorId":1911,"corporation":false,"usgs":true,"family":"Buxton","given":"Herbert","email":"hbuxton@usgs.gov","middleInitial":"T.","affiliations":[{"id":5056,"text":"Office of the AD Energy and Minerals, and Environmental Health","active":true,"usgs":true}],"preferred":true,"id":597178,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":50422,"text":"ofr01283 - 2003 - Water quality data at selected sites in the Mississippi Valley-type Zn-Pb ore district of upper Silesia, Poland, 1995-97","interactions":[],"lastModifiedDate":"2012-02-02T00:11:20","indexId":"ofr01283","displayToPublicDate":"2003-04-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-283","title":"Water quality data at selected sites in the Mississippi Valley-type Zn-Pb ore district of upper Silesia, Poland, 1995-97","docAbstract":"The water chemistry of aquifers and streams in the Upper Silesia Ore District, Poland are affected by their proximity to zinc, lead, and silver ores and by ongoing mining activities that date back to the 11th century. This report presents hydrologic and water-quality data collected as part of a collaborative research effort of the U.S. Geological Survey and the University of Mining and Metallurgy in Cracow, Poland to study Mississippi-Valley-Type lead-zinc deposits. MVT deposits in the Upper Silesia Ore District (Fig. 1) were selected for detailed study because the Polish mining industry allowed access to collect samples from underground mines and mine-land property. Water-quality samples were collected from streams, springs, wells, underground mine seeps and drains; and mine-tailings ponds. Data include field measurements of specific conductance, pH, water temperature, and dissolved oxygen and laboratory analyses of major and minor inorganic constituents and selected trace-element constituents.","language":"ENGLISH","doi":"10.3133/ofr01283","usgsCitation":"Wirt, L., Motyka, J., Leach, D., Sass-Gustkiewicz, M., Szuwarzynski, M., Adamczyk, Z., Briggs, P., and Meiers, A., 2003, Water quality data at selected sites in the Mississippi Valley-type Zn-Pb ore district of upper Silesia, Poland, 1995-97 (Version 1.0): U.S. Geological Survey Open-File Report 2001-283, 18 p., https://doi.org/10.3133/ofr01283.","productDescription":"18 p.","costCenters":[],"links":[{"id":179492,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":4221,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/ofr-01-283/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a07e4b07f02db5f9aef","contributors":{"authors":[{"text":"Wirt, Laurie","contributorId":13204,"corporation":false,"usgs":true,"family":"Wirt","given":"Laurie","affiliations":[],"preferred":false,"id":241428,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Motyka, Jacek","contributorId":7768,"corporation":false,"usgs":true,"family":"Motyka","given":"Jacek","email":"","affiliations":[],"preferred":false,"id":241426,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Leach, David","contributorId":41076,"corporation":false,"usgs":true,"family":"Leach","given":"David","affiliations":[],"preferred":false,"id":241430,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sass-Gustkiewicz, Maria","contributorId":102564,"corporation":false,"usgs":true,"family":"Sass-Gustkiewicz","given":"Maria","email":"","affiliations":[],"preferred":false,"id":241433,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Szuwarzynski, Marek","contributorId":8168,"corporation":false,"usgs":true,"family":"Szuwarzynski","given":"Marek","email":"","affiliations":[],"preferred":false,"id":241427,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Adamczyk, Zbigniew","contributorId":32236,"corporation":false,"usgs":true,"family":"Adamczyk","given":"Zbigniew","email":"","affiliations":[],"preferred":false,"id":241429,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Briggs, Paul","contributorId":59510,"corporation":false,"usgs":true,"family":"Briggs","given":"Paul","affiliations":[],"preferred":false,"id":241432,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Meiers, Al","contributorId":58710,"corporation":false,"usgs":true,"family":"Meiers","given":"Al","email":"","affiliations":[],"preferred":false,"id":241431,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70164408,"text":"70164408 - 2003 - Are veterinary medicines causing environmental risks?","interactions":[],"lastModifiedDate":"2018-11-14T10:59:46","indexId":"70164408","displayToPublicDate":"2003-03-01T13:45:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Are veterinary medicines causing environmental risks?","docAbstract":"

Too little is known about the effects of these compounds, their metabolites, and degradation products.

","language":"English","publisher":"American Chemical Society","doi":"10.1021/es032519b","usgsCitation":"Boxall, A., Kolpin, D.W., Halling-Sorensen, B., and Tolls, J., 2003, Are veterinary medicines causing environmental risks?: Environmental Science & Technology, v. 37, no. 15, p. 286A-294A, https://doi.org/10.1021/es032519b.","productDescription":"9 p.","startPage":"286A","endPage":"294A","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":351,"text":"Iowa Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":316527,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"37","issue":"15","noUsgsAuthors":false,"publicationDate":"2003-08-01","publicationStatus":"PW","scienceBaseUri":"56b332d9e4b0cc79997f32e3","contributors":{"authors":[{"text":"Boxall, Alistair","contributorId":152697,"corporation":false,"usgs":false,"family":"Boxall","given":"Alistair","affiliations":[],"preferred":false,"id":597168,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kolpin, Dana W. 0000-0002-3529-6505 dwkolpin@usgs.gov","orcid":"https://orcid.org/0000-0002-3529-6505","contributorId":1239,"corporation":false,"usgs":true,"family":"Kolpin","given":"Dana","email":"dwkolpin@usgs.gov","middleInitial":"W.","affiliations":[{"id":351,"text":"Iowa Water Science Center","active":true,"usgs":true}],"preferred":true,"id":597169,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Halling-Sorensen, Bent","contributorId":156283,"corporation":false,"usgs":false,"family":"Halling-Sorensen","given":"Bent","email":"","affiliations":[],"preferred":false,"id":597170,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tolls, Johannes","contributorId":156284,"corporation":false,"usgs":false,"family":"Tolls","given":"Johannes","email":"","affiliations":[],"preferred":false,"id":597171,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":51511,"text":"ofr036 - 2003 - Principal facts for gravity stations in the Dry Valley area, west-central Nevada and east-central California","interactions":[],"lastModifiedDate":"2023-06-23T15:09:26.510101","indexId":"ofr036","displayToPublicDate":"2003-03-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2003-6","title":"Principal facts for gravity stations in the Dry Valley area, west-central Nevada and east-central California","docAbstract":"In June, 2002, the U.S. Geological Survey (USGS) established 143 new gravity stations and 12 new rock samples in the Dry Valley area, 30 miles north of Reno, Nevada, on the California - Nevada border (see fig. 1). This study reports on gravity, magnetic, and physical property data intended for use in modeling the geometry and depth of Dry Valley for groundwater analysis. It is part of a larger study that aims to characterize the hydrologic framework of several basins in Washoe County. Dry Valley is located south of the Fort Sage Mountains and south-east of Long Valley, on USGS 7.5’ quadrangles Constantia and Seven Lakes (fig. 2). The Cretaceous granitic rocks and Tertiary volcanic rocks that bound the sediment filled basin (fig. 3) may be especially important to future modeling because of their impact on groundwater flow. The granitic and volcanic rocks of Dry Valley exhibit densities and magnetic susceptibilities higher than the overlaying sediments, and create a distinguishable pattern of gravity and magnetic anomalies that reflect these properties.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr036","usgsCitation":"Sanger, E.A., and Ponce, D.A., 2003, Principal facts for gravity stations in the Dry Valley area, west-central Nevada and east-central California: U.S. Geological Survey Open-File Report 2003-6, Report: 21 p.; 7 Plates: 8.50 x 11.00 inches, https://doi.org/10.3133/ofr036.","productDescription":"Report: 21 p.; 7 Plates: 8.50 x 11.00 inches","onlineOnly":"Y","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":285218,"rank":9,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2003/0006/pdf/7_pro.pdf","text":"Plate 7","linkFileType":{"id":1,"text":"pdf"}},{"id":285217,"rank":8,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2003/0006/pdf/6_pro.pdf","text":"Plate 6","linkFileType":{"id":1,"text":"pdf"}},{"id":285216,"rank":7,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2003/0006/pdf/5_mag.pdf","text":"Plate 5","linkFileType":{"id":1,"text":"pdf"}},{"id":285215,"rank":6,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2003/0006/pdf/4_iso.pdf","text":"Plate 4","linkFileType":{"id":1,"text":"pdf"}},{"id":285214,"rank":5,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2003/0006/pdf/3_geol.pdf","text":"Plate 3","linkFileType":{"id":1,"text":"pdf"}},{"id":285213,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2003/0006/pdf/2_topo.pdf","text":"Plate 2","linkFileType":{"id":1,"text":"pdf"}},{"id":285212,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2003/0006/pdf/1_index.pdf","text":"Plate 1","linkFileType":{"id":1,"text":"pdf"}},{"id":285211,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2003/0006/pdf/of03-6.pdf","text":"Report","linkFileType":{"id":1,"text":"pdf"}},{"id":178555,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr036.jpg"},{"id":4518,"rank":10,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/0006/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"California, Nevada","otherGeospatial":"Dry Valley area","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -120.25,39.875 ], [ -120.25,40.125 ], [ -119.75,40.125 ], [ -119.75,39.875 ], [ -120.25,39.875 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aa8e4b07f02db667e1a","contributors":{"authors":[{"text":"Sanger, Elizabeth A.","contributorId":50219,"corporation":false,"usgs":true,"family":"Sanger","given":"Elizabeth","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":243778,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ponce, David A. 0000-0003-4785-7354 ponce@usgs.gov","orcid":"https://orcid.org/0000-0003-4785-7354","contributorId":1049,"corporation":false,"usgs":true,"family":"Ponce","given":"David","email":"ponce@usgs.gov","middleInitial":"A.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":243777,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":44576,"text":"wri024271 - 2003 - Case study for delineating a contributing area to a well in a fractured siliciclastic-bedrock aquifer near Lansdale, Pennsylvania","interactions":[],"lastModifiedDate":"2018-02-26T15:38:40","indexId":"wri024271","displayToPublicDate":"2003-03-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2002-4271","title":"Case study for delineating a contributing area to a well in a fractured siliciclastic-bedrock aquifer near Lansdale, Pennsylvania","docAbstract":"

A supply well used by the North Penn Water Authority near Lansdale, Pa., was selected as a case study for delineating a contributing area in a fractured siliciclastic-bedrock aquifer. The study emphasized the importance of refining the understanding of factors that control ground-water movement to the well by conducting (1) geophysical logging and flow measurements, (2) ground-water level monitoring, (3) aquifer testing, and (4) geochemical sampling. This approach could be applicable for other wells in siliciclastic-bedrock terranes, especially those of Triassic age in southeastern Pennsylvania.

The principal methods for refining the understanding of hydrology at supply well MG-1125 were aquifer testing, water-level measurements, and geophysical logging. Results of two constant-discharge aquifer tests helped estimate the transmissivity of water-producing units and evaluate the anisotropy caused by dipping beds. Results from slug tests provided estimates of transmissivity that were used to evaluate the results from the constant-discharge aquifer tests. Slug tests also showed the wide distribution of transmissivity, indicating that ground-water velocities must vary considerably in the well field. Water-level monitoring in observation wells allowed maps of the potentiometric surface near the well field to be drawn. The measurements also showed that the hydraulic gradient can change abruptly in response to pumping from nearby supply wells. Water levels measured at a broader regional scale in an earlier study also provided a useful view of the potentiometric surface for purposes of delineating the contributing area. Geophysical logging and measurements of flow within wells showed that about 60 percent of water from supply well MG-1125 probably is contributed from relatively shallow water-producing fractures from 60 to 125 feet below land surface, but measurable amounts of water are contributed by fractures to a depth of 311 feet below land surface. Chemical samples supported the evidence that shallow fractures probably contribute significant amounts of water to well MG-1125. The large contribution of water from shallow fractures indicates that the area providing part of the recharge to the well is not far removed from the wellhead.

Preliminary delineations of the contributing area and the 100-day time-of travel area were computed from a water budget and time-of-travel equation. These delineations provided insight into the size (but not the shape) of the contributing areas. Three other approaches were used and results compared: (1) uniform-flow equation, (2) hydrogeologic mapping, and (3) numerical modeling. The uniform-flow equation predicted a contributing area that seemed unrealistic—extending far across the ground-water divide into an adjacent watershed. Hydrogeologic mapping, if used with the potentiometric surface and constrained by the water budget, produced contributing area that was similar to that from numerical modeling. Numerical modeling allowed the incorporation of anisotropy caused by dipping water-producing units, differing transmissivity values of geologic units, and ground-water withdrawals from nearby supply wells. The numerical modeling showed that groundwater withdrawals from nearby supply wells affected the contributing area to supply well MG-1125 but had less effect on the 100-day time-of-travel area.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/wri024271","collaboration":"Prepared in cooperation with the Pennsylvania Department of Environmental Protection","usgsCitation":"Barton, G., Risser, D.W., Galeone, D.G., and Goode, D., 2003, Case study for delineating a contributing area to a well in a fractured siliciclastic-bedrock aquifer near Lansdale, Pennsylvania: U.S. Geological Survey Water-Resources Investigations Report 2002-4271, vii, 46 p., https://doi.org/10.3133/wri024271.","productDescription":"vii, 46 p.","onlineOnly":"Y","costCenters":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true}],"links":[{"id":168543,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/2002/4271/coverthb.jpg"},{"id":3696,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/2002/4271/wri20024271.pdf","text":"Report","size":"20.4 MB","linkFileType":{"id":1,"text":"pdf"},"description":"WRI 2002-4271"}],"contact":"

Director, Pennsylvania Water Science Center
U.S. Geological Survey
215 Limekiln Road
New Cumberland, PA 17070

","tableOfContents":"","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f3e4b07f02db5efa77","contributors":{"authors":[{"text":"Barton, Gary J. gbarton@usgs.gov","contributorId":1147,"corporation":false,"usgs":true,"family":"Barton","given":"Gary J.","email":"gbarton@usgs.gov","affiliations":[{"id":343,"text":"Idaho Water Science Center","active":true,"usgs":true}],"preferred":true,"id":230025,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Risser, Dennis W. 0000-0001-9597-5406 dwrisser@usgs.gov","orcid":"https://orcid.org/0000-0001-9597-5406","contributorId":898,"corporation":false,"usgs":true,"family":"Risser","given":"Dennis","email":"dwrisser@usgs.gov","middleInitial":"W.","affiliations":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true}],"preferred":true,"id":230024,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Galeone, Daniel G. 0000-0002-8007-9278 dgaleone@usgs.gov","orcid":"https://orcid.org/0000-0002-8007-9278","contributorId":2301,"corporation":false,"usgs":true,"family":"Galeone","given":"Daniel","email":"dgaleone@usgs.gov","middleInitial":"G.","affiliations":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true}],"preferred":true,"id":230026,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Goode, Daniel J. 0000-0002-8527-2456 djgoode@usgs.gov","orcid":"https://orcid.org/0000-0002-8527-2456","contributorId":2433,"corporation":false,"usgs":true,"family":"Goode","given":"Daniel J.","email":"djgoode@usgs.gov","affiliations":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true}],"preferred":false,"id":230027,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":50115,"text":"pp1655 - 2003 - Irrigation-induced contamination of water, sediment, and biota in the western United States-synthesis of data from the National Irrigation Water Quality Program","interactions":[],"lastModifiedDate":"2020-02-16T11:15:12","indexId":"pp1655","displayToPublicDate":"2003-03-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"1655","title":"Irrigation-induced contamination of water, sediment, and biota in the western United States-synthesis of data from the National Irrigation Water Quality Program","docAbstract":"In October 1985 the U.S. Department of the Interior (DOI), through the National Irrigation Water Quality Program (NIWQP), began a series of field investigations at 26 areas in the Western United States to determine whether irrigation drainage has had harmful effects on fish, wildlife, and humans or has reduced beneficial uses of water. In 1992 NIWQP initiated the Data Synthesis Project to evaluate data collected during the field investigations. Geologic, climatologic, and hydrologic data were evaluated and water, sediment, and biota from the 26 areas were analyzed to identify commonalities and dominant factors that result in irrigation-induced contamination of water and biota. \r\n\r\nData collected for the 26 area investigations have been compiled and merged into a common data base. The structure of the data base is designed to enable assessment of relations between contaminant concentrations in water, sediment, and biota. The data base is available to the scientific community through the World Wide Web at URL http://www.usbr.gov/niwqp. Analysis of the data base for the Data Synthesis included use of summary statistics, factor analysis, and logistic regression. A Geographic Information System was used to store and analyze spatially oriented digital data such as land use, geology and evaporation rates. \r\n\r\nIn the U.S. Department of the Interior (DOI) study areas, samples of water, bottom sediment, and biota were collected for trace-element and pesticide analysis. Contaminants most commonly associated with irrigation drainage were identified by comparing concentrations in water with established criteria. For surface water, the criteria used were typically chronic criteria for the protection of freshwater aquatic life. Because ground water can discharge to the surface where wildlife can be exposed to it, the criteria used for ground water were both the maximum contaminant levels (MCL's) for drinking water and the chronic criteria for the protection of freshwater aquatic life. \r\n\r\nData collected by the NIWQP studies indicated that, in surface water, filtered and unfiltered samples had nearly the same concentrations of arsenic, boron, molybdenum, and selenium for concentrations greater than about 10 micrograms per liter. Therefore, in this concentration range, filtered concentrations can be directly compared to biological-effect levels developed for unfiltered samples. In the range of 1 to 10 micrograms per liter there may be a tendency for unfiltered arsenic concentrations to be greater than filtered concentrations. For selenium, however, the data suggest differences from equality in that range result from analytical imprecision and not a general tendency for unfiltered concentrations to be greater than filtered concentrations. This relation may not be true in lentic, nutrient-rich waters because in such settings algae can bioaccumulate large amounts of selenium and other trace elements. \r\n\r\nSelenium was the trace element in surface water that most commonly exceeded chronic criteria for the protection of freshwater aquatic life; more than 40 percent of the selenium concentrations in surface-water samples exceeded the U.S. Environmental Protection Agency (USEPA) aquatic-life chronic criterion (5 micrograms per liter). In 12 of the 26 areas at least 25 percent of the surface water-samples had selenium concentrations that either equaled or exceeded the chronic criterion (5 micrograms per liter). More than 28 percent of boron concentrations and almost 17 percent of the molybdenum concentrations exceeded the aquatic life criteria established by the State of California (550 and 19 micrograms per liter, respectively). In ground water, more than 22 percent of the arsenic concentrations and more than 35 percent of the selenium concentrations exceeded the MCL (10 and 50 micrograms per liter, respectively). Few samples of uranium in surface water exceeded a criterion for the protection of aquatic life (300 micrograms per liter), but 44 percent ","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/pp1655","isbn":"060789024X","usgsCitation":"Seiler, R.L., Skorupa, J.P., Naftz, D.L., and Nolan, B.T., 2003, Irrigation-induced contamination of water, sediment, and biota in the western United States-synthesis of data from the National Irrigation Water Quality Program: U.S. Geological Survey Professional Paper 1655, vi, 123 p. , https://doi.org/10.3133/pp1655.","productDescription":"vi, 123 p. ","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":122013,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/pp_1655.jpg"},{"id":4301,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/pp1655/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aa7e4b07f02db666878","contributors":{"authors":[{"text":"Seiler, Ralph L.","contributorId":13609,"corporation":false,"usgs":true,"family":"Seiler","given":"Ralph","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":240784,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Skorupa, Joseph P.","contributorId":54980,"corporation":false,"usgs":true,"family":"Skorupa","given":"Joseph","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":240785,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Naftz, David L. 0000-0003-1130-6892 dlnaftz@usgs.gov","orcid":"https://orcid.org/0000-0003-1130-6892","contributorId":1041,"corporation":false,"usgs":true,"family":"Naftz","given":"David","email":"dlnaftz@usgs.gov","middleInitial":"L.","affiliations":[{"id":610,"text":"Utah Water Science Center","active":true,"usgs":true},{"id":5050,"text":"WY-MT Water Science Center","active":true,"usgs":true}],"preferred":true,"id":240782,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Nolan, B. Thomas 0000-0002-6945-9659","orcid":"https://orcid.org/0000-0002-6945-9659","contributorId":8905,"corporation":false,"usgs":true,"family":"Nolan","given":"B.","email":"","middleInitial":"Thomas","affiliations":[],"preferred":true,"id":240783,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":50102,"text":"pp1411B - 2003 - Hydrologic properties and ground-water flow systems of the Paleozoic rocks in the upper Colorado River basin in Arizona, Colorado, New Mexico, Utah, and Wyoming, excluding the San Juan Basin","interactions":[],"lastModifiedDate":"2023-08-03T14:04:13.586229","indexId":"pp1411B","displayToPublicDate":"2003-03-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"1411","chapter":"B","title":"Hydrologic properties and ground-water flow systems of the Paleozoic rocks in the upper Colorado River basin in Arizona, Colorado, New Mexico, Utah, and Wyoming, excluding the San Juan Basin","docAbstract":"

The hydrologic properties and ground-water flow systems of Paleozoic sedimentary rocks in the Upper Colorado River Basin were investigated under the Regional Aquifer-System Analysis (RASA) program of the U.S. Geological Survey in anticipation of the development of water supplies from bedrock aquifers to fulfill the region's growing water demands. The study area, in parts of Arizona, Colorado, New Mexico, Utah, and Wyoming, covers about 100,000 square miles. It includes parts of four physiographic provinces--the Middle Rocky Mountains, Wyoming Basin, Southern Rocky Mountains, and Colorado Plateaus. A variety of landforms, including mountains, plateaus, mesas, cuestas, plains, badlands, and canyons, are present. Altitudes range from 3,100 to 14,500 feet. Precipitation is distributed orographically and ranges from less than 6 inches per year at lower altitudes to more than 60 inches per year in some mountainous areas. Most of the infrequent precipitation at altitudes of less than 6,000 feet is consumed by evapotranspiration. The Colorado and Green Rivers are the principal streams: the 1964-82 average discharge of the Colorado River where it leaves the Upper Colorado River Basin is 12,170 cubic feet per second (a decrease of 5,680 cubic feet per second since construction of Glen Canyon Dam in 1963). On the basis of their predominant lithologic and hydrologic properties, the Paleozoic rocks are classified into four aquifers and three confining units. The Flathead aquifer, Gros Ventre confining unit, Bighorn aquifer, Elbert-Parting confining unit, and Madison aquifer (Redwall-Leadville and Darwin-Humbug zones) make up the Four Corners aquifer system. A thick sequence, composed mostly of Mississippian and Pennsylvanian shale, anhydrite, halite, and carbonate rocks--the Four Corners confining unit (Belden-Molas and Paradox-Eagle Valley subunits)--overlies the Four Corners aquifer system in most areas and inhibits vertical ground-water flow between the Four Corners aquifer system and the overlying Canyonlands aquifer. Composed of the uppermost Paleozoic rocks, the Canyonlands aquifer consists, in ascending order, of the Cutler-Maroon, Weber-De Chelly, and Park City-State Bridge zones. The Paleozoic rocks are underlain by a basal confining unit consisting of Precambrian sedimentary, igneous, and metamorphic rocks and overlain throughout most of the Upper Colorado River Basin by the Chinle-Moenkopi confining unit, which consists of Triassic formations composed mostly of shale. The largest values of porosity, permeability, hydraulic conductivity, transmissivity, and artesian yield are exhibited by the Redwall-Leadville zone of the Madison aquifer and the Weber-De Chelly zone of the Canyonlands aquifer. The former consists almost entirely of Devonian and Mississippian carbonate rocks: the latter consists mostly of Pennsylvanian and Permian quartz sandstone. Unit-averaged porosity in hydrogeologic units composed of Paleozoic rocks ranges from less than 1 to 28 percent. Permeability ranges from less than 0.0001 to 3,460 millidarcies. Unit-averaged hydraulic conductivity ranges from 0.000005 to 200 feet per day. The composite transmissivity of Paleozoic rocks ranges from 0.0005 to 47,000 feet squared per day. Artesian yields to wells and springs (excluding atypical springflows) from these hydrogeologic units range from less than 1 to 10,000 gallons per minute. The permeability and watersupply capabilities of all hydrogeologic units progressively decrease from uplifted areas to structural basins. Recharge to the Paleozoic rocks is provided by direct infiltration of precipitation, leakage from streams, and ground-water inflows from structurally continuous areas west and north of the Upper Colorado River Basin. The total recharge available from ground-water systems in the basin from direct precipitation and stream leakage is estimated to be 6,600,000 acre-feet per year. However, little of this recharge directly enters the Paleozoic rocks

","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Regional Aquifer-System Analysis; upper Colorado River basin, excluding San Juan Basin","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/pp1411B","isbn":"10449612","usgsCitation":"Geldon, A.L., 2003, Hydrologic properties and ground-water flow systems of the Paleozoic rocks in the upper Colorado River basin in Arizona, Colorado, New Mexico, Utah, and Wyoming, excluding the San Juan Basin: U.S. Geological Survey Professional Paper 1411, 153 p., https://doi.org/10.3133/pp1411B.","productDescription":"153 p.","costCenters":[],"links":[{"id":86305,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/1411b/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":86304,"rank":15,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1411b/plate-13.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":86303,"rank":14,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1411b/plate-12.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":86302,"rank":13,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1411b/plate-11.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":86301,"rank":12,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1411b/plate-10.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":86300,"rank":11,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1411b/plate-09.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":86299,"rank":10,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1411b/plate-08.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":110380,"rank":16,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_54230.htm","linkFileType":{"id":5,"text":"html"},"description":"54230"},{"id":86298,"rank":9,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1411b/plate-07.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":86297,"rank":8,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1411b/plate-06.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":86296,"rank":7,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1411b/plate-05.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":86295,"rank":6,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1411b/plate-04.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":86294,"rank":5,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1411b/plate-03.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":86293,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1411b/plate-02.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":86292,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1411b/plate-01.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":120582,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/pp/1411b/report-thumb.jpg"}],"country":"United States","state":"Arizona, Colorado, New Mexico, Utah, Wyoming","otherGeospatial":"Colorado River Basin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -111.96461713778204,\n 36.022458991657004\n ],\n [\n -109.40174251197432,\n 35.569441572661034\n ],\n [\n -108.8249261189088,\n 35.31167812479586\n ],\n [\n -107.73827518945954,\n 34.76286007754946\n ],\n [\n -106.32726172315138,\n 35.93962204004775\n ],\n [\n -106.62412695473473,\n 36.76872502276994\n ],\n [\n -106.66330557092597,\n 37.427094699314225\n ],\n [\n -105.90701642248833,\n 38.44628806889858\n ],\n [\n -106.02119004019598,\n 39.27483671401558\n ],\n [\n -106.3464035380921,\n 40.253105550517944\n ],\n [\n -106.67264673427478,\n 41.40515303982963\n ],\n [\n -109.72531609374137,\n 43.23807409147179\n ],\n [\n -110.9164111123038,\n 43.59873584987204\n ],\n [\n -111.47114286006384,\n 42.221418870963134\n ],\n [\n -111.25059582649341,\n 40.853037318699904\n ],\n [\n -111.63094204088144,\n 38.14694770228951\n ],\n [\n -112.6680602955308,\n 37.27286513933717\n ],\n [\n -111.96461713778204,\n 36.022458991657004\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a19e4b07f02db6056e1","contributors":{"authors":[{"text":"Geldon, Arthur L.","contributorId":16395,"corporation":false,"usgs":true,"family":"Geldon","given":"Arthur","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":240762,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70185126,"text":"70185126 - 2003 - Hydrogeology Journal in 2002","interactions":[],"lastModifiedDate":"2017-03-15T11:15:49","indexId":"70185126","displayToPublicDate":"2003-02-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1923,"text":"Hydrogeology Journal","active":true,"publicationSubtype":{"id":10}},"title":"Hydrogeology Journal in 2002","docAbstract":"

Hydrogeology Journal appeared in six issues containing a total of 674 pages and 47 major articles, including 22 Papers and 24 Reports, as well as Technical Notes and Book Reviews. The final issue of 2002 also contained the annual volume index. Hydrogeology Journal (HJ) is an international forum for hydrogeology and related disciplines. Authors in 2002 were from about 30 countries. Articles advanced hydrogeologic science and described hydrogeologic systems in many regions worldwide. These articles focused on 22 countries: Afghanistan, Argentina, Australia, Austria, Belgium, Brazil, Canada, China, India, Israel, Japan, Jordan, Mexico, New Zealand, Nigeria, Portugal, Qatar, Switzerland, Syria, Turkey, UK, and the USA. The Guest Editors of the 2002 HJ theme issue on \"Groundwater Recharge\", Bridget R. Scanlon and Peter G. Cook, assembled a highly relevant and sought-after collection of papers from eminent authors on wide-ranging aspects of the subject.

","language":"English","publisher":"Springer-Verlag","doi":"10.1007/s10040-003-0248-6","usgsCitation":"Olcott, P., Schneider, R., and Voss, C., 2003, Hydrogeology Journal in 2002: Hydrogeology Journal, v. 11, no. 1, p. 1-2, https://doi.org/10.1007/s10040-003-0248-6.","productDescription":"2 p. ","startPage":"1","endPage":"2","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":478368,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1007/s10040-003-0248-6","text":"Publisher Index Page"},{"id":337597,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"11","issue":"1","noUsgsAuthors":false,"publicationDate":"2003-01-24","publicationStatus":"PW","scienceBaseUri":"58ca52d2e4b0849ce97c86da","contributors":{"authors":[{"text":"Olcott, Perry","contributorId":188041,"corporation":false,"usgs":false,"family":"Olcott","given":"Perry","affiliations":[],"preferred":false,"id":684443,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schneider, Robert","contributorId":102460,"corporation":false,"usgs":true,"family":"Schneider","given":"Robert","email":"","affiliations":[],"preferred":false,"id":684444,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Voss, Clifford","contributorId":63150,"corporation":false,"usgs":true,"family":"Voss","given":"Clifford","affiliations":[],"preferred":false,"id":684445,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70164405,"text":"70164405 - 2003 - Response to comment on \"Pharmaceuticals, hormones, and other organic wastewater contaminants in U.S. streams, 1999-2000: A national reconnaissance\"","interactions":[],"lastModifiedDate":"2018-11-26T08:31:42","indexId":"70164405","displayToPublicDate":"2003-01-23T13:45:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Response to comment on \"Pharmaceuticals, hormones, and other organic wastewater contaminants in U.S. streams, 1999-2000: A national reconnaissance\"","docAbstract":"

Till (1) raised concerns that several aspects of how we handled the data in our study (2) may have caused unintended bias. First, Till (1) considers the “median detectable concentrations” listed in Table 1 (2) to be misleading because “higher median concentrations than is actually the case” were suggested. We interpret this concern raised by Till (1) to be that some readers may misinterpret our median detectable concentration to be an overall median concentration. Our intention was to provide the reader with information that could not easily be determined independently. For example, by examining the frequency of detection (2), it could easily be determined that the overall median concentration was less than the reporting level for all but six compounds (those having a detection frequency of>50%). Our goal for providing a median detectable concentration was to give a better sense of the concentrations when a particular compound was detected. Thus, we felt the combination of frequency of detection (how often a compound was found), median detectable concentration (median concentration when a compound was detected), and maximum concentration (highest concentration measured) would provide the greatest benefit to the readers. In future reports, we will modify the table headings to ensure that overall median concentration and median detectable concentration are clearly differentiated.

","language":"English","publisher":"ACS Publications","doi":"10.1021/es0202356","usgsCitation":"Kolpin, D.W., Furlong, E.T., Meyer, M.T., Thurman, E.M., Zaugg, S.D., Barber, L.B., and Buxton, H.T., 2003, Response to comment on \"Pharmaceuticals, hormones, and other organic wastewater contaminants in U.S. streams, 1999-2000: A national reconnaissance\": Environmental Science & Technology, v. 37, no. 5, p. 1054-1054, https://doi.org/10.1021/es0202356.","productDescription":"1 p.","startPage":"1054","endPage":"1054","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":351,"text":"Iowa Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":506149,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1021/es0202356","text":"Publisher Index Page"},{"id":316524,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"37","issue":"5","noUsgsAuthors":false,"publicationDate":"2003-01-23","publicationStatus":"PW","scienceBaseUri":"56b33323e4b0cc79997f3448","contributors":{"authors":[{"text":"Kolpin, Dana W. 0000-0002-3529-6505 dwkolpin@usgs.gov","orcid":"https://orcid.org/0000-0002-3529-6505","contributorId":1239,"corporation":false,"usgs":true,"family":"Kolpin","given":"Dana","email":"dwkolpin@usgs.gov","middleInitial":"W.","affiliations":[{"id":351,"text":"Iowa Water Science Center","active":true,"usgs":true}],"preferred":true,"id":597157,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Furlong, Edward T. 0000-0002-7305-4603 efurlong@usgs.gov","orcid":"https://orcid.org/0000-0002-7305-4603","contributorId":740,"corporation":false,"usgs":true,"family":"Furlong","given":"Edward","email":"efurlong@usgs.gov","middleInitial":"T.","affiliations":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true},{"id":503,"text":"Office of Water Quality","active":true,"usgs":true},{"id":5046,"text":"Branch of Analytical Serv (NWQL)","active":true,"usgs":true},{"id":27111,"text":"National Water Quality Program","active":true,"usgs":true}],"preferred":true,"id":597158,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Meyer, Michael T. 0000-0001-6006-7985 mmeyer@usgs.gov","orcid":"https://orcid.org/0000-0001-6006-7985","contributorId":866,"corporation":false,"usgs":true,"family":"Meyer","given":"Michael","email":"mmeyer@usgs.gov","middleInitial":"T.","affiliations":[{"id":353,"text":"Kansas Water Science Center","active":false,"usgs":true}],"preferred":true,"id":597159,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Thurman, E. Michael","contributorId":9636,"corporation":false,"usgs":true,"family":"Thurman","given":"E.","email":"","middleInitial":"Michael","affiliations":[],"preferred":false,"id":597160,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Zaugg, Steven D. sdzaugg@usgs.gov","contributorId":768,"corporation":false,"usgs":true,"family":"Zaugg","given":"Steven","email":"sdzaugg@usgs.gov","middleInitial":"D.","affiliations":[],"preferred":true,"id":597161,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Barber, Larry B. 0000-0002-0561-0831 lbbarber@usgs.gov","orcid":"https://orcid.org/0000-0002-0561-0831","contributorId":921,"corporation":false,"usgs":true,"family":"Barber","given":"Larry","email":"lbbarber@usgs.gov","middleInitial":"B.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":597162,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Buxton, Herbert T. hbuxton@usgs.gov","contributorId":1911,"corporation":false,"usgs":true,"family":"Buxton","given":"Herbert","email":"hbuxton@usgs.gov","middleInitial":"T.","affiliations":[{"id":5056,"text":"Office of the AD Energy and Minerals, and Environmental Health","active":true,"usgs":true}],"preferred":true,"id":597163,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70198853,"text":"70198853 - 2003 - Arsenic thermodynamic data and environmental geochemistry","interactions":[],"lastModifiedDate":"2018-08-20T19:01:47","indexId":"70198853","displayToPublicDate":"2003-01-01T19:00:11","publicationYear":"2003","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Arsenic thermodynamic data and environmental geochemistry","docAbstract":"

No abstract available. 

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Arsenic in ground water: Geochemistry and occurrence","language":"English","publisher":"Kluwer Academic","publisherLocation":"Boston","isbn":"978-0-306-47956-4","usgsCitation":"Nordstrom, D.K., and Archer, D., 2003, Arsenic thermodynamic data and environmental geochemistry, chap. of Arsenic in ground water: Geochemistry and occurrence, p. 1-25.","productDescription":"25 p. ","startPage":"1","endPage":"25","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":356643,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5b98cdd6e4b0702d0e846dc2","contributors":{"editors":[{"text":"Welch, A. H.","contributorId":14836,"corporation":false,"usgs":true,"family":"Welch","given":"A. H.","affiliations":[],"preferred":false,"id":743102,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Stollenwerk, Kenneth G. kgstolle@usgs.gov","contributorId":578,"corporation":false,"usgs":true,"family":"Stollenwerk","given":"Kenneth","email":"kgstolle@usgs.gov","middleInitial":"G.","affiliations":[],"preferred":true,"id":743103,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Nordstrom, D. Kirk 0000-0003-3283-5136 dkn@usgs.gov","orcid":"https://orcid.org/0000-0003-3283-5136","contributorId":749,"corporation":false,"usgs":true,"family":"Nordstrom","given":"D.","email":"dkn@usgs.gov","middleInitial":"Kirk","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":false,"id":743100,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Archer, D.","contributorId":33078,"corporation":false,"usgs":true,"family":"Archer","given":"D.","affiliations":[],"preferred":false,"id":743101,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70199505,"text":"70199505 - 2003 - Potential for increased mercury accumulation in the estuary food web","interactions":[],"lastModifiedDate":"2022-03-16T17:29:28.976809","indexId":"70199505","displayToPublicDate":"2003-01-01T15:47:47","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3331,"text":"San Francisco Estuary and Watershed Science","active":true,"publicationSubtype":{"id":10}},"title":"Potential for increased mercury accumulation in the estuary food web","docAbstract":"

Present concentrations of mercury in large portions of San Francisco Bay (Bay), the Sacramento-San Joaquin Delta (Delta), and the Sacramento and San Joaquin rivers are high enough to warrant concern for the health of humans and wildlife. Large scale tidal wetland restoration is currently under consideration as a means of increasing populations of fish species of concern. Tidal wetland restoration activities may lead to increased concentrations of mercury in the estuarine food web and exacerbate the existing mercury problem. This paper evaluates our present ability to predict the local and regional effects of restoration actions on mercury accumulation in aquatic food webs. A sport fish consumption advisory is in place for the Bay, and an advisory is under consideration for the Delta and lower Sacramento and San Joaquin rivers. Mercury concentrations in eggs of several water bird species from the Bay have exceeded the lowest observed effect level. A variety of mercury sources, largely related to historic mercury and gold mining, is present in the watershed and has created a spatially heterogeneous distribution of mercury in the Bay-Delta Estuary. Mercury exists in the environment in a variety of forms and has a complex biogeochemical cycle. The most hazardous form, methylmercury, is produced at a relatively high rate in wetlands and newly flooded aquatic habitats. It is likely that distinct spatial variation on multiple spatial scales exists in net methylmercury production in Bay-Delta tidal wetlands, including variation within each tidal wetland, among tidal wetlands in the same region, and among tidal wetlands in different regions. Understanding this spatial variation and its underlying causes will allow environmental managers to minimize the negative effects of mercury bioaccumulation as a result of restoration activities. Actions needed to reduce the uncertainty associated with this issue include a long term, multifaceted research effort, long term monitoring on local and regional scales, and careful evaluation of individual restoration projects with regard to potential increase of food web mercury.

","language":"English","publisher":"John Muir Institute of the Environment","doi":"10.15447/sfews.2003v1iss1art4","usgsCitation":"Davis, J.A., Yee, D., Collins, J.N., Schwarzbach, S.E., and Luoma, S.N., 2003, Potential for increased mercury accumulation in the estuary food web: San Francisco Estuary and Watershed Science, v. 1, no. 1, 37 p., https://doi.org/10.15447/sfews.2003v1iss1art4.","productDescription":"37 p.","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":478371,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.15447/sfews.2003v1iss1art4","text":"Publisher Index Page"},{"id":357511,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Sacramento River, Sacramento-San Joaquin Delta, San Francisco Bay, San Joaquin River","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -121.57196044921875,\n 39.08743603215884\n ],\n [\n -121.78344726562499,\n 39.04265287290379\n ],\n [\n -121.96746826171875,\n 38.914544497799476\n ],\n [\n -121.915283203125,\n 38.81617117607388\n ],\n [\n -121.651611328125,\n 38.72194763292809\n ],\n [\n -121.66259765625001,\n 38.67478920520597\n ],\n [\n -121.7120361328125,\n 38.34381037525605\n ],\n [\n -121.827392578125,\n 38.27700093565902\n ],\n [\n -121.73675537109374,\n 37.98533963422239\n ],\n [\n -121.56372070312499,\n 37.77288579232439\n ],\n [\n -121.35498046875,\n 37.77505678240509\n ],\n [\n -121.168212890625,\n 37.53368798315969\n ],\n [\n -120.92651367187499,\n 37.568528265476075\n ],\n [\n -121.20391845703125,\n 37.84015683604136\n ],\n [\n -121.30828857421875,\n 38.156156969924915\n ],\n [\n -121.45935058593749,\n 38.494443887725055\n ],\n [\n -121.1407470703125,\n 38.666211605156704\n ],\n [\n -121.20391845703125,\n 38.72194763292809\n ],\n [\n -121.44287109374999,\n 38.659777730712534\n ],\n [\n -121.46759033203125,\n 39.02131757437681\n ],\n [\n -121.57196044921875,\n 39.08743603215884\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"1","issue":"1","noUsgsAuthors":false,"publicationDate":"2003-10-22","publicationStatus":"PW","scienceBaseUri":"5befe5bee4b045bfcadf7f50","contributors":{"authors":[{"text":"Davis, Jay A.","contributorId":208018,"corporation":false,"usgs":false,"family":"Davis","given":"Jay","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":745623,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Yee, Donald","contributorId":191127,"corporation":false,"usgs":false,"family":"Yee","given":"Donald","email":"","affiliations":[],"preferred":false,"id":745624,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Collins, Joshua N.","contributorId":150531,"corporation":false,"usgs":false,"family":"Collins","given":"Joshua","email":"","middleInitial":"N.","affiliations":[{"id":12703,"text":"San Francisco Estuary Institute","active":true,"usgs":false}],"preferred":false,"id":745625,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schwarzbach, Steven E. steven_schwarzbach@usgs.gov","contributorId":1025,"corporation":false,"usgs":true,"family":"Schwarzbach","given":"Steven","email":"steven_schwarzbach@usgs.gov","middleInitial":"E.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":745626,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Luoma, Samuel N. 0000-0001-5443-5091 snluoma@usgs.gov","orcid":"https://orcid.org/0000-0001-5443-5091","contributorId":2287,"corporation":false,"usgs":true,"family":"Luoma","given":"Samuel","email":"snluoma@usgs.gov","middleInitial":"N.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":745627,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70074403,"text":"70074403 - 2003 - Interseasonal covariability of Sierra Nevada streamflow and San Francisco Bay salinity","interactions":[],"lastModifiedDate":"2020-01-04T13:28:58","indexId":"70074403","displayToPublicDate":"2003-01-01T14:13:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Interseasonal covariability of Sierra Nevada streamflow and San Francisco Bay salinity","docAbstract":"

The ecosystems of the San Francisco Bay estuary are influenced by the salinity of its waters, which in turn depends on flushing by freshwater inflows from the western slopes of the Sierra Nevada. Estimates of full-natural flows in eight major rivers that flush the Bay are analyzed here by extended empirical-orthogonal-function analyses to characterize distinct ‘modes’ of seasonal flow and runoff variability. These modes provide a clear identification of the seasons in which the various rivers respond to hydroclimatic forcings and the seasons during which the rivers most strongly affect San Francisco Bay salinities. About 60 percent of the runoff variability is shared by the rivers over the course of a year but season-to-season differences among the rivers are more subtly distributed. Autumn and winter streamflows respond directly to concurrent (autumn and winter) precipitation and temperatures. Autumn and winter salinities are dominated by these flows, which in each season reflect mostly variations in flows from the central Sierra Nevada and the large Sacramento River. In contrast, spring runoff-rate and streamflow modes are functions of precipitation and temperature during the entire wet (winter and spring) season and are dominated by rivers of the central and southern Sierra Nevada. In turn, the critical spring salinities depend most on the streamflow fluctuations in those central and southern rivers.

","language":"English","publisher":"Elsevier","doi":"10.1016/S0022-1694(03)00078-7","usgsCitation":"Dettinger, M., and Cayan, D.R., 2003, Interseasonal covariability of Sierra Nevada streamflow and San Francisco Bay salinity: Journal of Hydrology, v. 277, no. 3-4, p. 164-181, https://doi.org/10.1016/S0022-1694(03)00078-7.","productDescription":"18 p.","startPage":"164","endPage":"181","numberOfPages":"18","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true}],"links":[{"id":281673,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"San Francisco Bay, Sierra Nevada","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -124.41,36.39 ], [ -124.41,41.8 ], [ -117.56,41.8 ], [ -117.56,36.39 ], [ -124.41,36.39 ] ] ] } } ] }","volume":"277","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd62efe4b0b290850fe7ec","contributors":{"authors":[{"text":"Dettinger, Michael D. 0000-0002-7509-7332","orcid":"https://orcid.org/0000-0002-7509-7332","contributorId":31743,"corporation":false,"usgs":true,"family":"Dettinger","given":"Michael D.","affiliations":[],"preferred":false,"id":489573,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cayan, Daniel R. 0000-0002-2719-6811 drcayan@usgs.gov","orcid":"https://orcid.org/0000-0002-2719-6811","contributorId":1494,"corporation":false,"usgs":true,"family":"Cayan","given":"Daniel","email":"drcayan@usgs.gov","middleInitial":"R.","affiliations":[],"preferred":false,"id":489572,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70142157,"text":"70142157 - 2003 - A special issue devoted to gold deposits in northern Nevada: Part 2. Carlin-type Deposits","interactions":[],"lastModifiedDate":"2015-03-02T11:37:04","indexId":"70142157","displayToPublicDate":"2003-01-01T12:45:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"A special issue devoted to gold deposits in northern Nevada: Part 2. Carlin-type Deposits","docAbstract":"

This is the second of two special issues of Economic Geology devoted to gold deposits in northern Nevada. Readers interested in a general overview of these deposits, their economic significance, their context within the tectonic evolution of the region, and synoptic references on each gold deposit type are directed to the preface of the first special issue (John et al., 2003). Volume 98, issue 2, contains five papers that address regional aspects important to the genesis of gold deposits in northern Nevada and five papers that present detailed studies of epithermal deposits and districts. All of the regional papers are pertinent to Carlin-type gold deposits, because they address the age of mineralization (Arehart et al., 2003), origin and evolutionary history of the northwest-striking mineral belts that localize many deposits (Grauch et al., 2003), nature of the middle and lower crust below these mineral belts (Howard, 2003), district- to deposit-scale stream sediment and lithogeochemical anomalies (Theodore et al., 2003), and stratigraphy and structure of a district located along a northeast-striking lineament (Peters et al., 2003).

\n

The nine papers in this second special issue focus on an array of problems pertinent to genetic and exploration models for Carlin-type deposits in northern Nevada (Fig. 1). These investigations sort out and characterize the sequence of deformational, igneous, and hydrothermal events in mining districts, constrain the age of mineralization, map paleothermal gradients, identify structures and lithologies that are preferentially mineralized, ascertain processes of ore formation, determine sources of ore fluid components, and define fluid flow paths.

\n

A common theme among these papers is inheritance, whereby older features in the mineral belts influence ore formation in subsequent Carlin-type hydrothermal systems. Three types of inheritance are inferred by one or more of these investigations: (1) structural inheritance, where older faults are reactivated during subsequent contractional and/or extensional tectonic events producing permeable fracture systems that focused flow of ore fluids; (2) alteration inheritance, where one or more preore alteration events produced reactive host rocks that are preferentially mineralized; and (3) geochemical inheritance, in which Au and other elements are recycled from older mineralization into younger Carlin-type deposits.

\n

Despite the similar age, tectonic setting, alteration types, mineral parageneses, and geochemical signatures of the deposits studied, these papers do not lead to consensus regarding genetic models for Carlin-type deposits. Rather, the separate investigations by different workers, utilizing both similar and unlike approaches, result in markedly different conclusions. Some of this disparity probably is due to real differences in the origin of different districts; however, the opposing conclusions arrived at by investigations on neighboring deposits in a single district are more problematic and most likely are due to difficulties resulting from the superposition of different types and ages of gold mineralization or to substantial variations in the hydrology and proportions of fluid components derived from deep and shallow sources in each deposit. Further work is needed to validate and understand the significance of these differences.

","language":"English","publisher":"Society of Economic Geologists","publisherLocation":"Lancaster, PA","doi":"10.2113/gsecongeo.98.6.1063","usgsCitation":"Hofstra, A.H., John, D.A., and Theodore, T., 2003, A special issue devoted to gold deposits in northern Nevada: Part 2. Carlin-type Deposits: Economic Geology, v. 98, no. 6, p. 1063-1067, https://doi.org/10.2113/gsecongeo.98.6.1063.","productDescription":"5 p.","startPage":"1063","endPage":"1067","numberOfPages":"5","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":298202,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -120.03662109374999,\n 41.983994270935625\n ],\n [\n -120.08056640625,\n 39.07890809706475\n ],\n [\n -114.60937499999999,\n 34.97600151317591\n ],\n [\n -114.49951171875,\n 35.35321610123821\n ],\n [\n -114.60937499999999,\n 36.03133177633187\n ],\n [\n -113.92822265625,\n 36.03133177633187\n ],\n [\n -114.0380859375,\n 42.032974332441405\n ],\n [\n -120.03662109374999,\n 41.983994270935625\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"98","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"54f597bae4b02419550d2f39","contributors":{"authors":[{"text":"Hofstra, Albert H. 0000-0002-2450-1593 ahofstra@usgs.gov","orcid":"https://orcid.org/0000-0002-2450-1593","contributorId":1302,"corporation":false,"usgs":true,"family":"Hofstra","given":"Albert","email":"ahofstra@usgs.gov","middleInitial":"H.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":541638,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"John, David A. 0000-0001-7977-9106 djohn@usgs.gov","orcid":"https://orcid.org/0000-0001-7977-9106","contributorId":1748,"corporation":false,"usgs":true,"family":"John","given":"David","email":"djohn@usgs.gov","middleInitial":"A.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":541639,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Theodore, Ted G.","contributorId":57840,"corporation":false,"usgs":true,"family":"Theodore","given":"Ted G.","affiliations":[],"preferred":false,"id":541640,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70199419,"text":"70199419 - 2003 - Extreme acid mine drainage from a pyritic massive sulfide deposit, the Iron Mountain end-member","interactions":[],"lastModifiedDate":"2018-09-17T12:08:46","indexId":"70199419","displayToPublicDate":"2003-01-01T12:06:59","publicationYear":"2003","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Extreme acid mine drainage from a pyritic massive sulfide deposit, the Iron Mountain end-member","docAbstract":"

No abstract available.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Environmental aspects of mine wastes","language":"English","publisher":"Mineralogical Association of Canada","usgsCitation":"Alpers, C.N., Nordstrom, D.K., and Spitzley, J., 2003, Extreme acid mine drainage from a pyritic massive sulfide deposit, the Iron Mountain end-member, chap. of Environmental aspects of mine wastes, p. 407-430.","productDescription":"24 p.","startPage":"407","endPage":"430","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":357385,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c10ed10e4b034bf6a803a8c","contributors":{"authors":[{"text":"Alpers, Charles N. 0000-0001-6945-7365 cnalpers@usgs.gov","orcid":"https://orcid.org/0000-0001-6945-7365","contributorId":411,"corporation":false,"usgs":true,"family":"Alpers","given":"Charles","email":"cnalpers@usgs.gov","middleInitial":"N.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":745199,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nordstrom, D. Kirk 0000-0003-3283-5136 dkn@usgs.gov","orcid":"https://orcid.org/0000-0003-3283-5136","contributorId":749,"corporation":false,"usgs":true,"family":"Nordstrom","given":"D.","email":"dkn@usgs.gov","middleInitial":"Kirk","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":false,"id":745200,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Spitzley, J.","contributorId":207916,"corporation":false,"usgs":false,"family":"Spitzley","given":"J.","email":"","affiliations":[],"preferred":false,"id":745201,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70199418,"text":"70199418 - 2003 - Stable isotope applications in hydrologic studies","interactions":[],"lastModifiedDate":"2018-09-17T11:58:49","indexId":"70199418","displayToPublicDate":"2003-01-01T11:57:23","publicationYear":"2003","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"chapter":"11","title":"Stable isotope applications in hydrologic studies","docAbstract":"

No abstract available.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Treatise on geochemistry","language":"English","publisher":"Elsevier","doi":"10.1016/B0-08-043751-6/05081-7","usgsCitation":"Kendall, C., and Doctor, D., 2003, Stable isotope applications in hydrologic studies, chap. 11 of Treatise on geochemistry, v. 5, p. 319-364, https://doi.org/10.1016/B0-08-043751-6/05081-7.","productDescription":"46 p.","startPage":"319","endPage":"364","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":357384,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c10ed11e4b034bf6a803a92","contributors":{"authors":[{"text":"Kendall, Carol 0000-0002-0247-3405 ckendall@usgs.gov","orcid":"https://orcid.org/0000-0002-0247-3405","contributorId":1462,"corporation":false,"usgs":true,"family":"Kendall","given":"Carol","email":"ckendall@usgs.gov","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":745195,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Doctor, D.H.","contributorId":94773,"corporation":false,"usgs":true,"family":"Doctor","given":"D.H.","affiliations":[],"preferred":false,"id":745196,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70199417,"text":"70199417 - 2003 - Geochemistry of saline lakes","interactions":[],"lastModifiedDate":"2018-09-17T11:46:07","indexId":"70199417","displayToPublicDate":"2003-01-01T11:44:10","publicationYear":"2003","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"chapter":"13","title":"Geochemistry of saline lakes","docAbstract":"

No abstract available.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Treatise on geochemistry","language":"English","publisher":"Elsevier","doi":"10.1016/B0-08-043751-6/05083-0","usgsCitation":"Jones, B., and Deocampo, D., 2003, Geochemistry of saline lakes, chap. 13 of Treatise on geochemistry, v. 5, p. 393-424, https://doi.org/10.1016/B0-08-043751-6/05083-0.","productDescription":"32 p.","startPage":"393","endPage":"424","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":357383,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c10ed11e4b034bf6a803a95","contributors":{"authors":[{"text":"Jones, B.F.","contributorId":52156,"corporation":false,"usgs":true,"family":"Jones","given":"B.F.","email":"","affiliations":[],"preferred":false,"id":745193,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Deocampo, D.M.","contributorId":207915,"corporation":false,"usgs":false,"family":"Deocampo","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":745194,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70199414,"text":"70199414 - 2003 - Use of field-scale experiments and reactive transport modeling to evaluate remediation alternatives in streams affected by acid mine drainage","interactions":[],"lastModifiedDate":"2018-09-17T11:40:46","indexId":"70199414","displayToPublicDate":"2003-01-01T11:36:20","publicationYear":"2003","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Use of field-scale experiments and reactive transport modeling to evaluate remediation alternatives in streams affected by acid mine drainage","docAbstract":"

No abstract available.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Environmental aspects of mine wastes","language":"English","publisher":"Mineralogical Association of Canada","usgsCitation":"Kimball, B.A., Runkel, R., and Walton-Day, K., 2003, Use of field-scale experiments and reactive transport modeling to evaluate remediation alternatives in streams affected by acid mine drainage, chap. of Environmental aspects of mine wastes, p. 261-282.","productDescription":"22 p.","startPage":"261","endPage":"282","costCenters":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":357380,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c10ed11e4b034bf6a803a97","contributors":{"editors":[{"text":"Jambor, J.L.","contributorId":107460,"corporation":false,"usgs":true,"family":"Jambor","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":745183,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Blowes, D.W","contributorId":195353,"corporation":false,"usgs":false,"family":"Blowes","given":"D.W","affiliations":[],"preferred":false,"id":745184,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Ritchie, A.","contributorId":18517,"corporation":false,"usgs":true,"family":"Ritchie","given":"A.","email":"","affiliations":[],"preferred":false,"id":745185,"contributorType":{"id":2,"text":"Editors"},"rank":3}],"authors":[{"text":"Kimball, B. A.","contributorId":87583,"corporation":false,"usgs":false,"family":"Kimball","given":"B.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":745180,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Runkel, R.L.","contributorId":97529,"corporation":false,"usgs":true,"family":"Runkel","given":"R.L.","affiliations":[],"preferred":false,"id":745181,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Walton-Day, Katherine 0000-0002-9146-6193 kwaltond@usgs.gov","orcid":"https://orcid.org/0000-0002-9146-6193","contributorId":184043,"corporation":false,"usgs":true,"family":"Walton-Day","given":"Katherine","email":"kwaltond@usgs.gov","affiliations":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":745182,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70199413,"text":"70199413 - 2003 - Arsenic in southeastern Michigan","interactions":[],"lastModifiedDate":"2018-09-17T11:27:42","indexId":"70199413","displayToPublicDate":"2003-01-01T11:24:49","publicationYear":"2003","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Arsenic in southeastern Michigan","docAbstract":"

Arsenic levels exceeding 10 μg/L are present in hundreds of private supply wells distributed over ten counties in eastern and southeastern Michigan. Most of these wells are completed in the Mississippian Marshall Sandstone, the principal bedrock aquifer in the region, or in Pleistocene glacial or Pennsylvanian bedrock aquifers. About 70% of ground water samples taken from more than 100 wells, have arsenic contents ≥10 μg/L with a maximum value of 220 μg/L. Water samples and continuous cores were taken from two test wells. Arsenic content of core samples ranges from <5 to more than 300 ppm, with the highest values found for pyritic black shales. Authigenic cements in the Marshall Sandstone include patchy authigenic pyrite that locally contains arsenic-rich (up to 8.5 wt. % As) domains. Bulk arsenic contents of pyrite-bearing intervals, sampled in well cuttings, are a high as 1020 ppm. Arsenic-rich pyrite is likely the ultimate source of arsenic in eastern and southeastern Michigan ground water, but evidence for pyrite oxidation at depth in bedrock aquifers is generally lacking. Pyrite oxidation may occur or have occurred in tills derived from the Marshall Sandstone and Coldwater Shale, which were found to contain arsenic-rich (up to at least 0.7 wt. % As) iron oxyhydroxides. Plausible mechanisms for widespread arsenic mobilization in eastern and southeastern Michigan ground water include weathering of pyrite in tills, reductive dissolution of iron oxyhydroxides in tills, and potentially, pyrite oxidation in bedrock aquifers, due to drawdown in wells or lowering of water-table levels in response to Pleistocene glaciation.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Arsenic in ground water","language":"English","publisher":"Springer","publisherLocation":"Boston","doi":"10.1007/0-306-47956-7_10","usgsCitation":"Kolker, A., Haack, S.K., Cannon, W.F., Westjohn, D., Kim, M., and Woodruff, L.G., 2003, Arsenic in southeastern Michigan, chap. of Arsenic in ground water, p. 281-294, https://doi.org/10.1007/0-306-47956-7_10.","productDescription":"14 p.","startPage":"281","endPage":"294","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":382,"text":"Michigan Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":357379,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Michigan","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c10ed11e4b034bf6a803a99","contributors":{"editors":[{"text":"Welch, A. H.","contributorId":14836,"corporation":false,"usgs":true,"family":"Welch","given":"A. H.","affiliations":[],"preferred":false,"id":745178,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Stollenwerk, Kenneth G. kgstolle@usgs.gov","contributorId":578,"corporation":false,"usgs":true,"family":"Stollenwerk","given":"Kenneth","email":"kgstolle@usgs.gov","middleInitial":"G.","affiliations":[],"preferred":true,"id":745179,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Kolker, Allan 0000-0002-5768-4533 akolker@usgs.gov","orcid":"https://orcid.org/0000-0002-5768-4533","contributorId":643,"corporation":false,"usgs":true,"family":"Kolker","given":"Allan","email":"akolker@usgs.gov","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":745172,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Haack, Sheridan K. skhaack@usgs.gov","contributorId":1982,"corporation":false,"usgs":true,"family":"Haack","given":"Sheridan","email":"skhaack@usgs.gov","middleInitial":"K.","affiliations":[{"id":382,"text":"Michigan Water Science Center","active":true,"usgs":true}],"preferred":true,"id":745173,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cannon, William F. 0000-0002-2699-8118 wcannon@usgs.gov","orcid":"https://orcid.org/0000-0002-2699-8118","contributorId":1883,"corporation":false,"usgs":true,"family":"Cannon","given":"William","email":"wcannon@usgs.gov","middleInitial":"F.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":745174,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Westjohn, D.B.","contributorId":68411,"corporation":false,"usgs":true,"family":"Westjohn","given":"D.B.","affiliations":[],"preferred":false,"id":745175,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kim, M.-J.","contributorId":12229,"corporation":false,"usgs":true,"family":"Kim","given":"M.-J.","email":"","affiliations":[],"preferred":false,"id":745176,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Woodruff, Laurel G. 0000-0002-2514-9923 woodruff@usgs.gov","orcid":"https://orcid.org/0000-0002-2514-9923","contributorId":2224,"corporation":false,"usgs":true,"family":"Woodruff","given":"Laurel","email":"woodruff@usgs.gov","middleInitial":"G.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":745177,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70198884,"text":"70198884 - 2003 - Effects of microbiological and geochemical interactions in mine drainage","interactions":[],"lastModifiedDate":"2018-09-17T12:09:55","indexId":"70198884","displayToPublicDate":"2003-01-01T10:46:28","publicationYear":"2003","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"chapter":"11","title":"Effects of microbiological and geochemical interactions in mine drainage","docAbstract":"

No abstract available. 

","largerWorkType":{"id":5,"text":"Book chapter"},"largerWorkTitle":"Environmental aspects of mine wastes","language":"English","publisher":"Mineralogical Association of Canada","usgsCitation":"Nordstrom, D.K., 2003, Effects of microbiological and geochemical interactions in mine drainage, chap. 11 of Environmental aspects of mine wastes, v. 31, p. 227-238.","productDescription":"12 p.","startPage":"227","endPage":"238","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":356702,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":356701,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://www.researchgate.net/profile/Darrell_Nordstrom/publication/285237442_Effects_of_microbiological_and_geochemical_interactions_in_mine_drainage/links/56a2817608ae1b65112cac04.pdf"}],"volume":"31","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5b98cdd6e4b0702d0e846dc6","contributors":{"editors":[{"text":"Jambor, J.L.","contributorId":107460,"corporation":false,"usgs":true,"family":"Jambor","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":743261,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Nordstrom, D. Kirk 0000-0003-3283-5136 dkn@usgs.gov","orcid":"https://orcid.org/0000-0003-3283-5136","contributorId":749,"corporation":false,"usgs":true,"family":"Nordstrom","given":"D.","email":"dkn@usgs.gov","middleInitial":"Kirk","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":false,"id":743260,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70199469,"text":"70199469 - 2003 - Deep fluids in the continents: I. Sedimentary basins","interactions":[],"lastModifiedDate":"2023-03-09T18:35:06.549239","indexId":"70199469","displayToPublicDate":"2003-01-01T09:21:43","publicationYear":"2003","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"chapter":"5.16","title":"Deep fluids in the continents: I. Sedimentary basins","docAbstract":"

No abstract available.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Treatise on geochemistry","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Elsevier","doi":"10.1016/B0-08-043751-6/05085-4","usgsCitation":"Kharaka, Y.K., and Hanor, J., 2003, Deep fluids in the continents: I. Sedimentary basins, chap. 5.16 of Treatise on geochemistry, v. 5, p. 1-48, https://doi.org/10.1016/B0-08-043751-6/05085-4.","productDescription":"48 p.","startPage":"1","endPage":"48","costCenters":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":357462,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"5","tableOfContents":"


","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c10ed2be4b034bf6a803b23","contributors":{"editors":[{"text":"Holland, Heinrich","contributorId":149786,"corporation":false,"usgs":false,"family":"Holland","given":"Heinrich","email":"","affiliations":[],"preferred":false,"id":745501,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Turekian, K.","contributorId":111688,"corporation":false,"usgs":true,"family":"Turekian","given":"K.","email":"","affiliations":[],"preferred":false,"id":866082,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Kharaka, Yousif K. 0000-0001-9861-8260 ykharaka@usgs.gov","orcid":"https://orcid.org/0000-0001-9861-8260","contributorId":1928,"corporation":false,"usgs":true,"family":"Kharaka","given":"Yousif","email":"ykharaka@usgs.gov","middleInitial":"K.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":745499,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hanor, J.S.","contributorId":15768,"corporation":false,"usgs":true,"family":"Hanor","given":"J.S.","affiliations":[],"preferred":false,"id":745500,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70198495,"text":"70198495 - 2003 - In situ arsenic remediation in a fractured, alkaline aquifer","interactions":[],"lastModifiedDate":"2018-08-13T09:35:27","indexId":"70198495","displayToPublicDate":"2003-01-01T09:17:05","publicationYear":"2003","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"In situ arsenic remediation in a fractured, alkaline aquifer","docAbstract":"

No abstract available. 

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Arsenic in ground water","language":"English","publisher":"Springer","publisherLocation":"New York","doi":"10.1007/b101867","usgsCitation":"Welch, A., Stollenwerk, K.G., Maurer, D.K., and Feinson, L.S., 2003, In situ arsenic remediation in a fractured, alkaline aquifer, chap. of Arsenic in ground water, p. 403-419, https://doi.org/10.1007/b101867.","productDescription":"17 p.","startPage":"403","endPage":"419","costCenters":[{"id":470,"text":"New Jersey Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":356250,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5b98cdd6e4b0702d0e846dc8","contributors":{"editors":[{"text":"Welch, A. H.","contributorId":14836,"corporation":false,"usgs":true,"family":"Welch","given":"A. H.","affiliations":[],"preferred":false,"id":742241,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Stollenwerk, Kenneth G. kgstolle@usgs.gov","contributorId":578,"corporation":false,"usgs":true,"family":"Stollenwerk","given":"Kenneth","email":"kgstolle@usgs.gov","middleInitial":"G.","affiliations":[],"preferred":true,"id":742242,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Welch, A. H.","contributorId":14836,"corporation":false,"usgs":true,"family":"Welch","given":"A. H.","affiliations":[],"preferred":false,"id":741674,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stollenwerk, Kenneth G. kgstolle@usgs.gov","contributorId":578,"corporation":false,"usgs":true,"family":"Stollenwerk","given":"Kenneth","email":"kgstolle@usgs.gov","middleInitial":"G.","affiliations":[],"preferred":true,"id":741675,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Maurer, D. K.","contributorId":37757,"corporation":false,"usgs":true,"family":"Maurer","given":"D.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":741676,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Feinson, Lawrence S. lsfeinso@usgs.gov","contributorId":4232,"corporation":false,"usgs":true,"family":"Feinson","given":"Lawrence","email":"lsfeinso@usgs.gov","middleInitial":"S.","affiliations":[{"id":470,"text":"New Jersey Water Science Center","active":true,"usgs":true}],"preferred":true,"id":741677,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70199468,"text":"70199468 - 2003 - The groundwater geochemistry of waste disposal facilities","interactions":[],"lastModifiedDate":"2018-09-19T09:18:57","indexId":"70199468","displayToPublicDate":"2003-01-01T09:16:11","publicationYear":"2003","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"chapter":"16","title":"The groundwater geochemistry of waste disposal facilities","docAbstract":"

No abstract available.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Treatise on geochemistry ","language":"English","publisher":"Elsevier","doi":"10.1016/B0-08-043751-6/09057-5","usgsCitation":"Bjerg, P., Albrechtsen, H., Kjeldsen, P., Christensen, T., and Cozzarelli, I.M., 2003, The groundwater geochemistry of waste disposal facilities, chap. 16 of Treatise on geochemistry , v. 9, p. 579-612, https://doi.org/10.1016/B0-08-043751-6/09057-5.","productDescription":"34 p.","startPage":"579","endPage":"612","costCenters":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":357461,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c10ed2be4b034bf6a803b26","contributors":{"editors":[{"text":"Lollar, B.S.","contributorId":24532,"corporation":false,"usgs":true,"family":"Lollar","given":"B.S.","email":"","affiliations":[],"preferred":false,"id":745498,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Bjerg, P.L.","contributorId":207992,"corporation":false,"usgs":false,"family":"Bjerg","given":"P.L.","email":"","affiliations":[],"preferred":false,"id":745493,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Albrechtsen, H.-J.","contributorId":20150,"corporation":false,"usgs":true,"family":"Albrechtsen","given":"H.-J.","email":"","affiliations":[],"preferred":false,"id":745494,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kjeldsen, P.","contributorId":207993,"corporation":false,"usgs":false,"family":"Kjeldsen","given":"P.","email":"","affiliations":[],"preferred":false,"id":745495,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Christensen, T.","contributorId":191227,"corporation":false,"usgs":false,"family":"Christensen","given":"T.","affiliations":[],"preferred":false,"id":745496,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Cozzarelli, Isabelle M. 0000-0002-5123-1007 icozzare@usgs.gov","orcid":"https://orcid.org/0000-0002-5123-1007","contributorId":1693,"corporation":false,"usgs":true,"family":"Cozzarelli","given":"Isabelle","email":"icozzare@usgs.gov","middleInitial":"M.","affiliations":[{"id":49175,"text":"Geology, Energy & Minerals Science Center","active":true,"usgs":true},{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":745497,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70199467,"text":"70199467 - 2003 - Mass balance approach to interpreting weathering reactions in watershed systems","interactions":[],"lastModifiedDate":"2018-09-19T09:14:19","indexId":"70199467","displayToPublicDate":"2003-01-01T09:12:00","publicationYear":"2003","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"chapter":"4","title":"Mass balance approach to interpreting weathering reactions in watershed systems","docAbstract":"

No abstract available.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Treatise on geochemistry","language":"English","publisher":"Elsevier","doi":"10.1016/B0-08-043751-6/05180-X","usgsCitation":"Bricker, O., Jones, B.F., and Bowser, C., 2003, Mass balance approach to interpreting weathering reactions in watershed systems, chap. 4 of Treatise on geochemistry, p. 119-132, https://doi.org/10.1016/B0-08-043751-6/05180-X.","productDescription":"14 p.","startPage":"119","endPage":"132","costCenters":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":357460,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c10ed2be4b034bf6a803b29","contributors":{"editors":[{"text":"Drever, J.I.","contributorId":58407,"corporation":false,"usgs":true,"family":"Drever","given":"J.I.","affiliations":[],"preferred":false,"id":745492,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Bricker, O.P.","contributorId":33717,"corporation":false,"usgs":true,"family":"Bricker","given":"O.P.","affiliations":[],"preferred":false,"id":745489,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jones, Blair F. bfjones@usgs.gov","contributorId":2784,"corporation":false,"usgs":true,"family":"Jones","given":"Blair","email":"bfjones@usgs.gov","middleInitial":"F.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":745490,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bowser, C.J.","contributorId":32302,"corporation":false,"usgs":true,"family":"Bowser","given":"C.J.","email":"","affiliations":[],"preferred":false,"id":745491,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70199466,"text":"70199466 - 2003 - Occurrence of arsenic in ground water of the Middle Rio Grande Basin, central New Mexico","interactions":[],"lastModifiedDate":"2018-09-19T09:10:29","indexId":"70199466","displayToPublicDate":"2003-01-01T09:07:23","publicationYear":"2003","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Occurrence of arsenic in ground water of the Middle Rio Grande Basin, central New Mexico","docAbstract":"

Chemical data from more than 400 ground-water sites in the Middle Rio Grande Basin of central New Mexico indicate that arsenic concentrations exceed the U.S. Environmental Protection Agency drinking-water standard of 10 micrograms per liter across broad areas of the Santa Fe Group aquifer system, which is currently the almost exclusive source of drinking-water supply for residents of the basin. Identification of sources of arsenic to ground water of the basin is complicated by multiple sources of ground-water recharge that differ substantially in chemical composition. Establishment of a clear hydrologic framework for the basin was useful in interpreting the significance of patterns in arsenic concentration. This investigation indicates that there are two main sources of high-arsenic water to the Middle Rio Grande Basin. One primary source is related to silicic volcanism in the Jemez Mountains to the north, where dilute recharge water likely flows through rocks that have been altered by contact with geothermal fluids. The other primary source is mineralized water of deep origin that mixes with shallower ground water in several locations around the basin, particularly along major structural features. Ground water that has not been affected by either of these two high-arsenic sources generally has low arsenic concentrations. In some areas of the basin, values of pH exceeding about 8.5 appear to contribute to elevated arsenic concentrations through desorption of arsenic from metal oxides.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Arsenic in ground water","language":"English","publisher":"Springer","publisherLocation":"Boston, MA","doi":"10.1007/0-306-47956-7_11","isbn":"978-1-4020-7317-5","usgsCitation":"Plummer, L., 2003, Occurrence of arsenic in ground water of the Middle Rio Grande Basin, central New Mexico, chap. of Arsenic in ground water, p. 295-327, https://doi.org/10.1007/0-306-47956-7_11.","productDescription":"33 p.","startPage":"295","endPage":"327","costCenters":[{"id":472,"text":"New Mexico Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":357459,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"New Mexico","otherGeospatial":"Middle Rio Grande Basin","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -107.5,34.25 ], [ -107.5,35.75 ], [ -106.0,35.75 ], [ -106.0,34.25 ], [ -107.5,34.25 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c10ed2be4b034bf6a803b2d","contributors":{"editors":[{"text":"Welch, A. H.","contributorId":14836,"corporation":false,"usgs":true,"family":"Welch","given":"A. H.","affiliations":[],"preferred":false,"id":745487,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Stollenwerk, Kenneth G. kgstolle@usgs.gov","contributorId":578,"corporation":false,"usgs":true,"family":"Stollenwerk","given":"Kenneth","email":"kgstolle@usgs.gov","middleInitial":"G.","affiliations":[],"preferred":true,"id":745488,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Plummer, L.N.","contributorId":206803,"corporation":false,"usgs":false,"family":"Plummer","given":"L.N.","email":"","affiliations":[],"preferred":false,"id":745486,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ]}