{"pageNumber":"161","pageRowStart":"4000","pageSize":"25","recordCount":6233,"records":[{"id":28985,"text":"wri974199 - 1998 - Hydrogeology and simulation of the effects of reclaimed-water application in west Orange and southeast Lake counties, Florida","interactions":[],"lastModifiedDate":"2012-02-02T00:08:48","indexId":"wri974199","displayToPublicDate":"1998-09-01T00:00:00","publicationYear":"1998","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":"97-4199","title":"Hydrogeology and simulation of the effects of reclaimed-water application in west Orange and southeast Lake counties, Florida","docAbstract":"Wastewater reclamation and reuse has become increasingly popular as water agencies search for alternative water-supply and wastewater-disposal options. Several governmental agencies in central Florida currently use the land-based application of reclaimed water (wastewater that has been treated beyond secondary treatment) as a management alternative to surface-water disposal of wastewater. Water Conserv II, a water reuse project developed jointly by Orange County and the City of Orlando, began operation in December 1986. In 1995, the Water Conserv II facility distributed approximately 28 Mgal/d of reclaimed water for discharge to rapid-infiltration basins (RIBs) and for use as agricultural irrigation. The Reedy Creek Improvement District (RCID) began operation of RIBs in September 1990, and in 1995 these RIBs received approximately 6.7 Mgal/d of reclaimed water. Analyses of existing data and data collected during the course of this study were combined with ground-water flow modeling and particle-tracking analyses to develop a process-oriented evaluation of the regional effects of reclaimed water applied by Water Conserv II and the RCID RIBs on the hydrology of west Orange and southeast Lake Counties. The ground-water flow system beneath the study area is a multi-aquifer system that consists of a thick sequence of highly permeable carbonate rocks overlain by unconsolidated sediments. The hydrogeologic units are the unconfined surficial aquifer system, the intermediate confining unit, and the confined Floridan aquifer system, which consists of two major permeable zones, the Upper and Lower Floridan aquifers, separated by the less permeable middle semiconfining unit. Flow in the surficial aquifer system is dominated regionally by diffuse downward leakage to the Floridan aquifer system and is affected locally by lateral flow systems produced by streams, lakes, and spatial variations in recharge. Ground water generally flows laterally through the Upper Floridan aquifer aquifer to the north and east. Many of the lakes in the study area are landlocked because the mantled karst environment precludes a well developed network of surface-water drainage. The USGS three-dimensional ground-water flow model MODFLOW was used to simulate ground-water flow in the surficial and Floridan aquifer systems. A steady-state calibration to average 1995 conditions was performed by using a parameter estimation program to vary values of surficial aquifer system hydraulic conductivity, intermediate confining unit leakance, and Upper Floridan aquifer transmissivity. The calibrated model generally produced simulated water levels in close agreement with measured water levels and was used to simulate the hydrologic effects of reclaimed-water application under current (1995) and proposed future conditions. In 1995, increases of up to about 40 ft in the water table and less than 5 ft in the Upper Floridan aquifer potentiometric surface had occurred as a result of reclaimed-water application. The largest increases were under RIB sites. An average traveltime of 10 years at Water Conserv II and 7 years at the RCID RIBs was required for reclaimed water to move from the water table to the top of the Upper Floridan aquifer. Approximately 67 percent of the reclaimed water applied at the RCID RIB site recharged the Floridan aquifer system, whereas 33 percent discharged from the surficial aquifer system to surface-water features; 99 percent of the reclaimed water applied at Water Conserv II recharged the Floridan aquifer system, whereas only 1 percent discharged from the surficial aquifer system to surface-water features. The majority of reclaimed water applied at both facilities probably will ultimately discharge from the Floridan aquifer system outside the model boundaries. Proposed future conditions were assumed to consist of an additional 11.7 Mgal/d of reclaimed water distributed by the Water Conserv II and RCID facilities. Increases of up to about 20 ft in the water","language":"ENGLISH","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/wri974199","usgsCitation":"O’Reilly, A.M., 1998, Hydrogeology and simulation of the effects of reclaimed-water application in west Orange and southeast Lake counties, Florida: U.S. Geological Survey Water-Resources Investigations Report 97-4199, vi, 91 p. :ill., maps ;28 cm., https://doi.org/10.3133/wri974199.","productDescription":"vi, 91 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":2269,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wri974199/","linkFileType":{"id":5,"text":"html"}},{"id":121719,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/wri_97_4199.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adae4b07f02db685537","contributors":{"authors":[{"text":"O’Reilly, Andrew M. 0000-0003-3220-1248 aoreilly@usgs.gov","orcid":"https://orcid.org/0000-0003-3220-1248","contributorId":2184,"corporation":false,"usgs":true,"family":"O’Reilly","given":"Andrew","email":"aoreilly@usgs.gov","middleInitial":"M.","affiliations":[{"id":5051,"text":"FLWSC-Orlando","active":true,"usgs":true}],"preferred":true,"id":200735,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":27855,"text":"wri974179 - 1998 - Chemistry and isotopic composition of ground water along a section near the Newmark area, San Bernardino County, California","interactions":[],"lastModifiedDate":"2012-02-02T00:08:35","indexId":"wri974179","displayToPublicDate":"1998-09-01T00:00:00","publicationYear":"1998","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":"97-4179","title":"Chemistry and isotopic composition of ground water along a section near the Newmark area, San Bernardino County, California","docAbstract":"Chemical and isotopic analyses and flow-meter measurements in pumped wells were used to determine the source, movement, and age of ground water along a section of the valley-fill aquifer from the San Jacinto Fault to the base of the San Bernardino Mountains near the Newmark area in the Bunker Hill Basin of southern California. Water samples were collected from four multiple-depth well sites, from different depths within three production wells, and from two nearby streams; these samples were analyzed for major ions, selected trace elements, stable isotopes of oxygen and hydrogen (delta oxygen-18 and delta deuterium), tritium, and carbon-14. Within the production wells, variations in vertical flowrate with depth were recorded during pumped conditions using a standard spinner tool. Where saturated, the upper 200 feet of unconsolidated deposits contributed as much as 60 percent of the well discharge; deposits at depths greater than 700 feet contributed less than 10 percent. Chemical analyses indicate that three general zones of ground-water quality are present along a north-south section--an oxygenated zone near the base of the San Bernardino Mountains, an oxygen-depleted zone near the San Jacinto Fault, and a deeper zone characterized by concentrations of fluoride greater than 1 mg/L and by a general water-quality composition similar to that of base flow in East Twin Creek. The presence of tritium in water from wells along the section indicates that post-1952 recharge has moved rapidly through the valley-fill aquifer to depths as great as 800 feet. Carbon-14 data indicate that the maximum age of ground water, sampled at depths ranging from 600 to 1,000 feet, is less than 5,000 years before present. Ground water along the study section is much younger than ground water from similar depths in other nearby basins. Delta oxygen-18 and delta deuterium data indicate that as much as 25 percent of the discharge from some wells near the base of the San Bernardino Mountains is water that was imported from northern California. Improved knowledge of depth-dependent ground-water flow along this section can aid in the design of an effective strategy for basin management, including remediation of the Newmark area, which is designated by the U.S. Environmental Protection Agency as a Superfund cleanup site.","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/wri974179","usgsCitation":"Izbicki, J., Danskin, W.R., and Mendez, G.O., 1998, Chemistry and isotopic composition of ground water along a section near the Newmark area, San Bernardino County, California: U.S. Geological Survey Water-Resources Investigations Report 97-4179, v, 27 p. :ill., map ;28 cm., https://doi.org/10.3133/wri974179.","productDescription":"v, 27 p. :ill., map ;28 cm.","costCenters":[],"links":[{"id":2170,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://ca.water.usgs.gov/archive/reports/wrir974179/","linkFileType":{"id":5,"text":"html"}},{"id":124499,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1997/4179/report-thumb.jpg"},{"id":56675,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1997/4179/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac8e4b07f02db67bf15","contributors":{"authors":[{"text":"Izbicki, John A. 0000-0003-0816-4408 jaizbick@usgs.gov","orcid":"https://orcid.org/0000-0003-0816-4408","contributorId":1375,"corporation":false,"usgs":true,"family":"Izbicki","given":"John A.","email":"jaizbick@usgs.gov","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":198790,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Danskin, Wesley R. 0000-0001-8672-5501 wdanskin@usgs.gov","orcid":"https://orcid.org/0000-0001-8672-5501","contributorId":1034,"corporation":false,"usgs":true,"family":"Danskin","given":"Wesley","email":"wdanskin@usgs.gov","middleInitial":"R.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":198789,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mendez, Gregory O. 0000-0002-9955-3726 gomendez@usgs.gov","orcid":"https://orcid.org/0000-0002-9955-3726","contributorId":1489,"corporation":false,"usgs":true,"family":"Mendez","given":"Gregory","email":"gomendez@usgs.gov","middleInitial":"O.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":false,"id":198791,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":22765,"text":"ofr9862 - 1998 - Evaluation of geophysical logs, phase I, for Crossley Farms Superfund Site, Berks County, Pennsylvania","interactions":[],"lastModifiedDate":"2018-06-22T13:58:13","indexId":"ofr9862","displayToPublicDate":"1998-09-01T00:00:00","publicationYear":"1998","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":"98-62","title":"Evaluation of geophysical logs, phase I, for Crossley Farms Superfund Site, Berks County, Pennsylvania","docAbstract":"<p>Twenty-one wells were drilled at Crossley Farms Superfund Site between December 15, 1987, and May 1, 1988, to define and monitor the horizontal and vertical distribution of ground-water contamination emanating from a suspected contaminant source area (Blackhead Hill). Eight well clusters were drilled on or near the Crossley Site and three well clusters were drilled at locations hydrologically down gradient from the site. Depths of wells range from 21 to 299 feet below land surface. These wells were installed in saprolite in shallow, intermediate, and deep water-producing zones of the fractured bedrock aquifer.</p><p>Borehole-geophysical and video logging were conducted between April 24, 1997, and May 8, 1997, to determine the water-producing zones, water-receiving zones, zones of vertical flow, borehole depth, and casing integrity in each well. This data and interpretation will be used to determine the location of the well intake for the existing open-hole wells, which will be retrofitted to isolate and monitor water-producing zones and prevent further cross-contamination within each open borehole, and identify wells that may need rehabilitation or replacement.</p><p>Caliper and video logs were used to locate fractures, inflections on fluid-temperature and fluid-resistivity logs indicated possible fluid-bearing fractures, and flowmeter measurements verified these locations. Single-point-resistance and natural-gamma logs provided information on stratigraphy. After interpretation of geophysical logs, video logs, and driller's notes, all wells will be constructed so that water-level fluctuations can be monitored and discrete water samples collected from shallow, intermediate, and deep water-bearing zones in each well.</p><p>Geophysical logs were run on seven bedrock and two deep bedrock wells. Gamma logs were run on 10 bedrock wells. Twenty-two wells were inspected visually with the borehole video camera for casing integrity.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr9862","issn":"0094-9140","collaboration":"Prepared in cooperation with the U.S. Environmental Protection Agency","usgsCitation":"Conger, R.W., 1998, Evaluation of geophysical logs, phase I, for Crossley Farms Superfund Site, Berks County, Pennsylvania: U.S. Geological Survey Open-File Report 98-62, v, 26 p. :ill., col. map ;28 cm., https://doi.org/10.3133/ofr9862.","productDescription":"v, 26 p. :ill., col. map ;28 cm.","costCenters":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true}],"links":[{"id":350707,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0062/ofr19980062.pdf","text":"Report","size":"646 KB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 1998-0062"},{"id":157050,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0062/coverthb.jpg"}],"contact":"<p><a href=\"mailto:dc_pa@usgs.gov\" data-mce-href=\"mailto:dc_pa@usgs.gov\">Director</a>, <a href=\"https://pa.water.usgs.gov/\" data-mce-href=\"https://pa.water.usgs.gov/\"> Pennsylvania Water Science Center</a><br> U.S. Geological Survey<br> 215 Limekiln Road<br> New Cumberland, PA 17070</p>","tableOfContents":"<ul><li>Abstract</li><li>Introduction</li><li>Evaluation of borehole-geophysical logs</li><li>Conclusions</li><li>References cited</li></ul>","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a09e4b07f02db5fae22","contributors":{"authors":[{"text":"Conger, Randall W. rwconger@usgs.gov","contributorId":2086,"corporation":false,"usgs":true,"family":"Conger","given":"Randall","email":"rwconger@usgs.gov","middleInitial":"W.","affiliations":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true}],"preferred":true,"id":188833,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":22845,"text":"ofr9868 - 1998 - Ground-water hydrology and simulation of ground-water flow at Operable Unit 3 and surrounding region, U.S. Naval Air Station, Jacksonville, Florida","interactions":[],"lastModifiedDate":"2012-02-02T00:07:57","indexId":"ofr9868","displayToPublicDate":"1998-08-01T00:00:00","publicationYear":"1998","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":"98-68","title":"Ground-water hydrology and simulation of ground-water flow at Operable Unit 3 and surrounding region, U.S. Naval Air Station, Jacksonville, Florida","docAbstract":"The Naval Air Station, Jacksonville (herein referred to as the Station), occupies 3,800 acres adjacent to the St. Johns River in Duval County, Florida. Operable Unit 3 (OU3) occupies 134 acres on the eastern side of the Station and has been used for industrial and commercial purposes since World War II. Ground water contaminated by chlorinated organic compounds has been detected in the surficial aquifer at OU3. The U.S. Navy and U.S. Geological Survey (USGS) conducted a cooperative hydrologic study to evaluate the potential for ground water discharge to the neighboring St. Johns River. A ground-water flow model, previously developed for the area, was recalibrated for use in this study. \rAt the Station, the surficial aquifer is exposed at land surface and forms the uppermost permeable unit. The aquifer ranges in thickness from 30 to 100 feet and consists of unconsolidated silty sands interbedded with local beds of clay. The low-permeability clays of the Hawthorn Group form the base of the aquifer. \rThe USGS previously conducted a ground-water investigation at the Station that included the development and calibration of a 1-layer regional ground-water flow model. For this investigation, the regional model was recalibrated using additional data collected after the original calibration. The recalibrated model was then used to establish the boundaries for a smaller subregional model roughly centered on OU3. \rWithin the subregional model, the surficial aquifer is composed of distinct upper and intermediate layers. The upper layer extends from land surface to a depth of approximately 15 feet below sea level; the intermediate layer extends from the upper layer down to the top of the Hawthorn Group. In the northern and central parts of OU3, the upper and intermediate layers are separated by a low-permeability clay layer. Horizontal hydraulic conductivities in the upper layer, determined from aquifer tests, range from 0.19 to 3.8 feet per day. The horizontal hydraulic conductivity in the intermediate layer, determined from one aquifer test, is 20 feet per day. \rAn extensive stormwater drainage system is present at OU3 and the surrounding area. Some of the stormwater drains have been documented to be draining ground water from the upper layer of the surficial aquifer, whereas other drains are only suspected to be draining ground water. \rThe subregional model contained 78 rows and 148 columns of square model cells that were 100 feet on each side. Vertically, the surficial aquifer was divided into two layers; layer 1 represented the upper layer and layer 2 represented the intermediate layer. Steady-state ground-water flow conditions were assumed. The model was calibrated to head data collected on October 29 and 30, 1996. After calibration, the model matched all 67 measured heads to within the calibration criterion of 1 foot; and 48 of 67 simulated heads (72 percent) were within 0.5 foot. \rModel simulated recharge rates ranged from 0.4 inch per year in areas that were largely paved to 13.0 inches per year in irrigated areas. Simulated hydraulic conductivities in the upper layer at OU3 ranged from 0.5 foot per day in the north to 1.0 foot per day in the south. Simulated vertical leakance between the upper and intermediate layers ranged from 1.0x10-6 per day in an area with low-permeability clays to 4.3x10-2 per day in an area that had been dredged. Simulated transmissivities in the intermediate layer ranged from 25 feet squared per day in an area of low-permeability channel-fill deposits to a high of 1,200 feet squared per day in areas covering most of OU3. Simulated riverbed conductances ranged from 4 to 60 feet squared per day and simulated bottom conductances of leaking stormwater drains ranged from 5 to 20 feet squared per day. \rThe direction and velocity of ground-water flow was determined using particle-tracking techniques. Ground-water flow in the upper layer was generally eastward toward the St. Johns River. However, leaking stormwat","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/ofr9868","issn":"0094-9140","usgsCitation":"Davis, J., 1998, Ground-water hydrology and simulation of ground-water flow at Operable Unit 3 and surrounding region, U.S. Naval Air Station, Jacksonville, Florida: U.S. Geological Survey Open-File Report 98-68, vi, 36 p. :ill., maps ;28 cm., https://doi.org/10.3133/ofr9868.","productDescription":"vi, 36 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":1308,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/ofr98-068/","linkFileType":{"id":5,"text":"html"}},{"id":155220,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aaae4b07f02db668c2d","contributors":{"authors":[{"text":"Davis, J.H.","contributorId":68770,"corporation":false,"usgs":true,"family":"Davis","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":188985,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":21977,"text":"ofr98198 - 1998 - Natural attenuation of chlorinated-hydrocarbon contamination at Fort Wainwright, Alaska: A hydrogeochemical and microbiological investigation workplan","interactions":[],"lastModifiedDate":"2021-12-20T21:07:39.949703","indexId":"ofr98198","displayToPublicDate":"1998-08-01T00:00:00","publicationYear":"1998","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":"98-198","title":"Natural attenuation of chlorinated-hydrocarbon contamination at Fort Wainwright, Alaska: A hydrogeochemical and microbiological investigation workplan","docAbstract":"Natural attenuation processes include biological degradation, by which microorganisms break down contaminants into simpler product compounds; adsorption of contaminants to soil particles, which decreases the mass of contaminants dissolved in ground water; and dispersion, which decreases dissolved contaminant concentrations through dilution. The primary objectives of this study are to (1) assess the degree to which such natural processes are attenuating chlorinated-hydrocarbon contamination in ground water, and (2) evaluate the effects of ground-water/surface-water interactions on natural-attenuation processes in the area of the former East and West Quartermasters Fueling Systems for Fort Wainwright, Alaska. The study will include investigations of the hydrologic, geochemical, and microbiological processes occurring at this site that influence the transport and fate of chlorinated hydrocarbons in ground water. To accomplish these objectives, a data-collection program has been initiated that includes measurements of water-table elevations and the stage of the Chena River; measurements of vertical temperature profiles within the subsurface; characterization of moisture distribution and movement in the unsaturated zone; collection of ground-water samples for determination of both organic and inorganic chemical constituents; and collection of ground-water samples for enumeration of microorganisms and determination of their potential to mineralize contaminants.\r\n\r\nWe will use results from the data-collection program described above to refine our conceptual model of hydrology and contaminant attenuation at this site. Measurements of water-table elevations and river stage will help us to understand the magnitude and direction of ground-water flow and how changes in the stage of the Chena River affect ground-water flow. Because ambient ground water and surface water typically have different temperature characteristics, temperature monitoring will likely provide further insight into ground-water/surface-water interactions in the subsurface. Characterization of the unsaturated zone will improve our understanding of interactions among ground water, the unsaturated zone, and the atmosphere. The interactions likely of importance to this study include the migration of water, dissolved contaminants, nutrients, and gases (oxygen, carbon dioxide, and methane) between the saturated and unsaturated zones. We will use the results of ground-water chemical analyses to determine the spatial and temporal distribution of (1) chlorinated-hydrocarbon contaminants and their degradation products, (2) oxidation-reduction indicators, (3) nutrients, and (4) major ground-water ions. These water-quality data will provide insight into ground-water flow directions, interactions between ground water and surface water, attenuation of contaminant concentrations caused by dispersion, and intrinsic microbiological processes. Microbiological analyses will indicate whether microorganisms at the site are capable of degrading the contaminants of interest, and will allow us to estimate their potential to attenuate existing contamination. Physical and chemical data interpreted as part of the analysis of ground water and surface water mixing will improve our understanding of the relationship between water quality and contaminant source mixing.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr98198","issn":"0094-9140","usgsCitation":"McCarthy, K.A., Lilly, M.R., Braddock, J.F., and Hinzman, L.D., 1998, Natural attenuation of chlorinated-hydrocarbon contamination at Fort Wainwright, Alaska: A hydrogeochemical and microbiological investigation workplan: U.S. Geological Survey Open-File Report 98-198, vii, 49 p., https://doi.org/10.3133/ofr98198.","productDescription":"vii, 49 p.","costCenters":[],"links":[{"id":152910,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0198/report-thumb.jpg"},{"id":393124,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_19103.htm"},{"id":51452,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0198/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Alaska","otherGeospatial":"Fort Wainwright","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -148.128662109375,\n              64.76241717518936\n            ],\n            [\n              -147.535400390625,\n              64.76241717518936\n            ],\n            [\n              -147.535400390625,\n              64.88509968914633\n            ],\n            [\n              -148.128662109375,\n              64.88509968914633\n            ],\n            [\n              -148.128662109375,\n              64.76241717518936\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b00e4b07f02db697f11","contributors":{"authors":[{"text":"McCarthy, Kathleen A. mccarthy@usgs.gov","contributorId":1159,"corporation":false,"usgs":true,"family":"McCarthy","given":"Kathleen","email":"mccarthy@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":186524,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lilly, Michael R.","contributorId":65494,"corporation":false,"usgs":true,"family":"Lilly","given":"Michael","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":186525,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Braddock, Joan F.","contributorId":97934,"corporation":false,"usgs":true,"family":"Braddock","given":"Joan","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":186527,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hinzman, Larry D.","contributorId":97133,"corporation":false,"usgs":true,"family":"Hinzman","given":"Larry","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":186526,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":22585,"text":"ofr98171 - 1998 - Concentrations of chlorinated organic compounds in biota and bed sediment in streams of the lower San Joaquin River drainage, California","interactions":[],"lastModifiedDate":"2012-02-02T00:07:57","indexId":"ofr98171","displayToPublicDate":"1998-08-01T00:00:00","publicationYear":"1998","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":"98-171","title":"Concentrations of chlorinated organic compounds in biota and bed sediment in streams of the lower San Joaquin River drainage, California","docAbstract":"Samples of resident biota and bed sediments were collected in 1992 from 18 sites on or near the floor of the San Joaquin Valley, California, for analysis of 33 organochlorine compounds. The sites were divided into five groups on the basis of physiographic region and land use. Ten compounds were detected in tissue, and 16 compounds were detected in bed sediment. The most frequently detected compound in both media was p,p'-DDE. Concentrations of total DDT (sum of o,p'- and p,p'-forms of DDD, DDE, and DDT) were statistically different among groups of sites for tissue and sediment (Kruskal-Wallis, P < 0.05). Concentrations in both media were highest in streams draining the west side of the valley. Concentrations of total DDT in tissue were significantly correlated with specific conductance, pH, and total alkalinity (P < 0.05), which are indicators of the proportion of irrigation-return flows in stream discharge. Concentrations in sediment on a dry-weight basis were not correlated with these water-quality parameters, but total-organic- carbon (TOC) normalized concentrations were significantly correlated with specific conductance and pH (P < 0.05). Regressions of the concentration of total DDT in tissue as a function of total DDT in bed sediment were significant and explained as much as 76 percent of the variance in the data. The concentration of total DDT in sediment may be related to mechanisms of soil transport to surface water with bioavailability of compounds related to the concentration of TOC in sediment.","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/ofr98171","issn":"0094-9140","usgsCitation":"Brown, L.R., 1998, Concentrations of chlorinated organic compounds in biota and bed sediment in streams of the lower San Joaquin River drainage, California: U.S. Geological Survey Open-File Report 98-171, vi, 22 p. :ill., maps ;28 cm., https://doi.org/10.3133/ofr98171.","productDescription":"vi, 22 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":155329,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0171/report-thumb.jpg"},{"id":52064,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0171/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db699d2e","contributors":{"authors":[{"text":"Brown, Larry R. 0000-0001-6702-4531 lrbrown@usgs.gov","orcid":"https://orcid.org/0000-0001-6702-4531","contributorId":1717,"corporation":false,"usgs":true,"family":"Brown","given":"Larry","email":"lrbrown@usgs.gov","middleInitial":"R.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":188519,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":28476,"text":"wri974287 - 1998 - Estimated predevelopment discharge to streams from the High Plains Aquifer in northwestern Oklahoma, southwestern Kansas, and northwestern Texas","interactions":[],"lastModifiedDate":"2012-02-02T00:08:47","indexId":"wri974287","displayToPublicDate":"1998-08-01T00:00:00","publicationYear":"1998","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":"97-4287","title":"Estimated predevelopment discharge to streams from the High Plains Aquifer in northwestern Oklahoma, southwestern Kansas, and northwestern Texas","docAbstract":"A study of the High Plains aquifer in Okla homa was initiated in 1996 to: (1) provide the information needed by the Oklahoma Water Resources Board to manage the quantity of water produced from the aquifer; and (2) provide base line water-chemistry data. The approach used to meet the first objective is to develop a digital ground-water flow model. The model will be cali brated, in part, by comparing simulated and esti mated predevelopment discharge from the aquifer to streams and cross-boundary flow. This report presents the estimated predevelopment discharge to streams from the High Plains aquifer.\r\nStreamflow data were the primary source of information used to estimate predevelopment dis charge from the High Plains aquifer. Data from 30 streamflow stations between the Arkansas and Canadian Rivers were considered in the analysis, and winter low-flow frequencies for 7-, 14-, and 30-day periods were determined for 25 stations. The 14-day low flow with a recurrence interval of 2 years was the primary value used to estimate pre development discharge from the aquifer.\r\n\r\nThe streams that drain the eastern part of the High Plains aquifer in Kansas (generally east of 99.5 longitude) are estimated to have had large predevelopment discharge from the aquifer, and most of them received discharge from near their headwaters. For streams with more than one streamflow gage, the upper perennial reaches appeared to have gained more discharge from the aquifer than the lower reaches. The total predevel opment discharge from the aquifer in this area to several streams is estimated to have been about 312 cubic feet per second, not including discharge that probably went directly to the Arkansas River. The Cimarron River and its tributaries are estimated to have gained about 78 cubic feet per second, but nearly one-half that amount was lost in the lower reaches of the river. The cause of the loss in the lower reaches is unknown. The Beaver River and its tributaries are estimated to have gained a net of about 10 cubic feet per second above Wolf Creek with the upper reaches gaining more than the lower reaches. Wolf Creek is estimated to have gained 30 cubic feet per second over its total length.","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/wri974287","usgsCitation":"Luckey, R.R., and Becker, M., 1998, Estimated predevelopment discharge to streams from the High Plains Aquifer in northwestern Oklahoma, southwestern Kansas, and northwestern Texas: U.S. Geological Survey Water-Resources Investigations Report 97-4287, iv, 28 p. :ill., maps ;28 cm., https://doi.org/10.3133/wri974287.","productDescription":"iv, 28 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":124775,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1997/4287/report-thumb.jpg"},{"id":57276,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1997/4287/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a81e4b07f02db64a130","contributors":{"authors":[{"text":"Luckey, R. R.","contributorId":93055,"corporation":false,"usgs":true,"family":"Luckey","given":"R.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":199870,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Becker, M.F.","contributorId":103708,"corporation":false,"usgs":true,"family":"Becker","given":"M.F.","email":"","affiliations":[],"preferred":false,"id":199871,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70207678,"text":"70207678 - 1998 - Technical protocol for evaluating natural attenuation of chlorinated solvents in ground water","interactions":[],"lastModifiedDate":"2020-01-03T16:32:12","indexId":"70207678","displayToPublicDate":"1998-08-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":4,"text":"Other Government Series"},"title":"Technical protocol for evaluating natural attenuation of chlorinated solvents in ground water","docAbstract":"<div><p>This Protocol is designed to evaluate the fate in ground water of chlorinated aliphatic hydrocarbons and/or fuel hydrocarbons. Documentation of natural attenuation requires detailed site characterization. The data collected under this protocol can be used to compare the relative effectiveness of other remedial options. and natural attenuation. This protocol should be used to evaluate whether monitored natural attenuation by itself or in conjunction with other remedial technologies is sufficient to achieve site-specific remedial objectives. Understanding the contaminant flow field in the subsurface is essential for a technically justified evaluation of a monitored natural attenuation remedial option; therefore, use of this protocol is not appropriate for evaluating monitored natural attenuation at sites where the contaminant flow field cannot be determined with an acceptable degree of certainty (e.g., complex fractured bedrock, karst, aquifers.)</p></div>","language":"English","publisher":"Environmental Protection Agency","usgsCitation":"Wiedemeier, T., Swanson, M., Moutoux, D., Gordon, E., Wilson, J., Wilson, B., Kampbell, D., Haas, P., Miller, R., Hansen, J., and Chapelle, F.H., 1998, Technical protocol for evaluating natural attenuation of chlorinated solvents in ground water, 248 p.","productDescription":"248 p.","costCenters":[{"id":559,"text":"South Carolina Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":370990,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":370989,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://cfpub.epa.gov/si/si_public_record_Report.cfm?Lab=NRMRL&dirEntryID=99187"}],"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Wiedemeier, T.H.","contributorId":221579,"corporation":false,"usgs":false,"family":"Wiedemeier","given":"T.H.","email":"","affiliations":[],"preferred":false,"id":778854,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Swanson, M.A.","contributorId":221580,"corporation":false,"usgs":false,"family":"Swanson","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":778855,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Moutoux, D.E.","contributorId":221581,"corporation":false,"usgs":false,"family":"Moutoux","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":778856,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gordon, E.K.","contributorId":221582,"corporation":false,"usgs":false,"family":"Gordon","given":"E.K.","email":"","affiliations":[],"preferred":false,"id":778857,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wilson, J.T.","contributorId":221583,"corporation":false,"usgs":false,"family":"Wilson","given":"J.T.","email":"","affiliations":[],"preferred":false,"id":778858,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Wilson, B.H.","contributorId":221584,"corporation":false,"usgs":false,"family":"Wilson","given":"B.H.","email":"","affiliations":[],"preferred":false,"id":778859,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Kampbell, D.H.","contributorId":58823,"corporation":false,"usgs":true,"family":"Kampbell","given":"D.H.","affiliations":[],"preferred":false,"id":778860,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Haas, P.E.","contributorId":221585,"corporation":false,"usgs":false,"family":"Haas","given":"P.E.","email":"","affiliations":[],"preferred":false,"id":778861,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Miller, R.N.","contributorId":100825,"corporation":false,"usgs":true,"family":"Miller","given":"R.N.","email":"","affiliations":[],"preferred":false,"id":778862,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Hansen, J.E.","contributorId":11855,"corporation":false,"usgs":true,"family":"Hansen","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":778863,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Chapelle, Francis H. chapelle@usgs.gov","contributorId":1350,"corporation":false,"usgs":true,"family":"Chapelle","given":"Francis","email":"chapelle@usgs.gov","middleInitial":"H.","affiliations":[{"id":559,"text":"South Carolina Water Science Center","active":true,"usgs":true},{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"preferred":true,"id":778864,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}}
,{"id":27121,"text":"wri974243 - 1998 - Characterization of hydrogeologic units using matrix properties, Yucca Mountain, Nevada","interactions":[],"lastModifiedDate":"2023-01-05T22:14:13.612346","indexId":"wri974243","displayToPublicDate":"1998-07-01T00:00:00","publicationYear":"1998","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":"97-4243","title":"Characterization of hydrogeologic units using matrix properties, Yucca Mountain, Nevada","docAbstract":"Determination of the suitability of Yucca Mountain, in southern Nevada, as a geologic repository for high-level radioactive waste requires the use of numerical flow and transport models. Input for these models includes parameters that describe hydrologic properties and the initial and boundary conditions for all rock materials within the unsaturated zone, as well as some of the upper rocks in the saturated zone. There are 30 hydrogeologic units in the unsaturated zone, and each unit is defined by limited ranges where a discrete volume of rock contains similar hydrogeologic properties. These hydrogeologic units can be easily located in space by using three-dimensional lithostratigraphic models based on relation- ships of the properties with the lithostratigraphy. Physical properties of bulk density, porosity, and particle density; flow properties of saturated hydraulic conductivity and moisture-retention characteristics; and the state variables (variables describing the current state of field conditions) of saturation and water potential were determined for each unit. Units were defined using (1) a data base developed from 4,892 rock samples collected from the coring of 23 shallow and 8 deep boreholes, (2) described lithostratigraphic boundaries and corresponding relations to porosity, (3) recognition of transition zones with pronounced changes in properties over short vertical distances, (4) characterization of the influence of mineral alteration on hydrologic properties such as permeability and moisture-retention characteristics, and (5) a statistical analysis to evaluate where boundaries should be adjusted to minimize the variance within layers. This study describes the correlation of hydrologic properties to porosity, a property that is well related to the lithostratigraphy and depositional and cooling history of the volcanic deposits and can, therefore, be modeled to be distributed laterally. Parameters of the hydrogeologic units developed in this study and the relation of flow properties to porosity that are described can be used to produce detailed and accurate representations of the core-scale hydrologic processes ongoing at Yucca Mountain.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri974243","usgsCitation":"Flint, L.E., 1998, Characterization of hydrogeologic units using matrix properties, Yucca Mountain, Nevada: U.S. Geological Survey Water-Resources Investigations Report 97-4243, v, 64 p., https://doi.org/10.3133/wri974243.","productDescription":"v, 64 p.","costCenters":[],"links":[{"id":125030,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/wri_97_4243.jpg"},{"id":411457,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_48850.htm","linkFileType":{"id":5,"text":"html"}},{"id":2236,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wri97-4243/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Nevada","otherGeospatial":"Yucca Mountain","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -116.4667,\n              36.9\n            ],\n            [\n              -116.4667,\n              36.8292\n            ],\n            [\n              -116.4028,\n              36.8292\n            ],\n            [\n              -116.4028,\n              36.9\n            ],\n            [\n              -116.4667,\n              36.9\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e2e4b07f02db5e4cd9","contributors":{"authors":[{"text":"Flint, L. E. 0000-0002-7868-441X","orcid":"https://orcid.org/0000-0002-7868-441X","contributorId":38180,"corporation":false,"usgs":true,"family":"Flint","given":"L.","middleInitial":"E.","affiliations":[],"preferred":false,"id":197590,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":26580,"text":"wri974197 - 1998 - Ground-water levels, predevelopment ground-water flow, and stream-aquifer relations in the vicinity of the Savannah River Site, Georgia and South Carolina","interactions":[],"lastModifiedDate":"2019-12-31T09:40:23","indexId":"wri974197","displayToPublicDate":"1998-07-01T00:00:00","publicationYear":"1998","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":"97-4197","title":"Ground-water levels, predevelopment ground-water flow, and stream-aquifer relations in the vicinity of the Savannah River Site, Georgia and South Carolina","docAbstract":"<p>Ground-water levels, predevelopment ground-water flow, and stream-aquifer relations in the vicinity of the U.S. Department of Energy Savannah River Site, Georgia and South Carolina, were evaluated as part of a cooperative study between the U.S. Geological Survey, U.S. Department of Energy, and Georgia Department of Natural Resources. As part of this evaluation: (1) ground-water-level fluctuations and trends in three aquifer systems in sediment of Cretaceous and Tertiary age were described and related to patterns of ground-water use and precipitations; (2) a conceptual model ofthe stream-aquifer flow system was developed; (3) the predevelopment ground-water flow system, configuration of potentiometric surfaces, trans-river flow, and recharge-discharge relations were described; and (4) stream-aquifer relations and the influence of river incision on ground-water flow and stream-aquifer relations were described. The 5,147-square mile study area is located in the northern part of the Coastal Plain physiographic province of Georgia and South Carolina. Coastal Plain sediments comprise three aquifer systems consisting of seven aquifers that are separated hydraulically by confining units. The aquifer systems are, in descending order: (1) the Floridan aquifer system?consisting of the Upper Three Runs and Gordon aquifers in sediments of Eocene age; (2) the Dublin aquifer system?consisting of the Millers Pond, upper Dublin, and lower Dublin aquifers in sediments of Paleocene-Late Cretaceous age; and (3) the Midville aquifer system?consisting of the upper Midville and lower Midville aquifers in sediments of Late Cretaceous age. The Upper Three Runs aquifer is the shallowest aquifer and is unconfined to semi-confined throughout most of the study area. Ground-water levels in the Upper Three Runs aquifer respond to a local flow system and are affected mostly by topography and climate. Ground-water flow in the deeper, Gordon aquifer and Dublin and Midville aquifer systems is characterized by local flow near outcrop areas to the north, changing to intermediate flow and then regional flow downdip (southeastward) as the aquifers become more deeply buried. Water levels in these deeper aquifers show a pronounced response to topography and climate in the vicinity of outcrops, and diminish southeastward where the aquifer is more deeply buried. Stream stage and pumpage affect ground-water levels in these deeper aquifers to varying degrees throughout the study area. The geologic characteristics of the Savannah River alluvial valley substantially control the configuration of potentiometric surfaces, ground-water-flow directions, and stream-aquifer relations. Data from 18 shallow borings indicate incision into each aquifer by the paleo Savannah River channel and subsequent infill of permeable alluvium, allowing for direct hydraulic connection between aquifers and the Savannah River along parts of its reach. This hydraulic connection may be the cause of large ground-water discharge to the river near Jackson, S.C., where the Gordon aquifer is in contact with Savannah River alluvium, and also the cause of lows or depressions formed in the potentiometric surfaces of confined aquifers that are in contact with the alluvium. Ground water in these aquifers flows toward the depressions. The influence of the river is diminished downstream where the aquifers are deeply buried, and upstream and downstream ground-water flow is possibly separated by a water divide or 'saddle'. Water-level data indicate that saddle features probably exist in the Gordon aquifer and Dublin aquifer system, and also might be present in the Midville aquifer system. Ground-water levels respond seasonally or in long term to changes in precipitation, evapotranspiration, pumpage, and river stage.&nbsp;</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri974197","usgsCitation":"Clarke, J.S., and West, C.T., 1998, Ground-water levels, predevelopment ground-water flow, and stream-aquifer relations in the vicinity of the Savannah River Site, Georgia and South Carolina: U.S. Geological Survey Water-Resources Investigations Report 97-4197, ix, 118 p. , https://doi.org/10.3133/wri974197.","productDescription":"ix, 118 p. ","costCenters":[{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"links":[{"id":118784,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/wri_97_4197.jpg"},{"id":1981,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wri974197/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Georgia, South Carolina","otherGeospatial":"Savannah River Site","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -81.88385009765625,\n              33.091541548655236\n            ],\n            [\n              -81.38946533203124,\n              33.091541548655236\n            ],\n            [\n              -81.38946533203124,\n              33.332823028503576\n            ],\n            [\n              -81.88385009765625,\n              33.332823028503576\n            ],\n            [\n              -81.88385009765625,\n              33.091541548655236\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b00e4b07f02db69815d","contributors":{"authors":[{"text":"Clarke, John S. jsclarke@usgs.gov","contributorId":400,"corporation":false,"usgs":true,"family":"Clarke","given":"John","email":"jsclarke@usgs.gov","middleInitial":"S.","affiliations":[{"id":316,"text":"Georgia Water Science Center","active":true,"usgs":true}],"preferred":true,"id":196653,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"West, Christopher T.","contributorId":77547,"corporation":false,"usgs":true,"family":"West","given":"Christopher","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":196654,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":28337,"text":"wri974211 - 1998 - Assessment of the hydraulic connection between ground water and the Peace River, west-central Florida","interactions":[],"lastModifiedDate":"2023-01-04T22:27:23.598961","indexId":"wri974211","displayToPublicDate":"1998-07-01T00:00:00","publicationYear":"1998","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":"97-4211","title":"Assessment of the hydraulic connection between ground water and the Peace River, west-central Florida","docAbstract":"<p><span>The hydraulic connection between the Peace River and the underlying aquifers along the length of the Peace River from Bartow to Arcadia was assessed to evaluate flow exchanges between these hydrologic systems. Methods included an evaluation of hydrologic and geologic records and seismic-reflection profiles, seepage investigations, and thermal infrared imagery interpretation. Along the upper Peace River, a progressive long-term decline in streamflow has occurred since 1931 due to a lowering of the potentiometric surface of the Upper Floridan aquifer by as much as 60 feet because of intensive ground-water withdrawals for phosphate mining and agriculture. Another effect from lowering the potentiometric surface has been the cessation of flow at several springs located near and within the Peace River channel, including Kissengen Spring, that once averaged a flow of about 19 million gallons a day. The lowering of ground-water head resulted in flow reversals at locations where streamflow enters sinkholes along the streambed and floodplain.</span></p><p>Hydrogeologic conditions along the Peace River vary from Bartow to Arcadia. Three distinctive hydrogeologic areas along the Peace River were delineated: (1) the upper Peace River near Bartow, where ground-water recharge occurs; (2) the middle Peace River near Bowling Green, where reversals of hydraulic gradients occur; and (3) the lower Peace River near Arcadia, where ground-water discharge occurs.</p><p>Seismic-reflection data were used to identify geologic features that could serve as potential conduits for surface-water and ground-water exchange. Depending on the hydrologic regime, this exchange could be recharge of surface water into the aquifer system or discharge of ground water into the stream channel. Geologic features that would provide pathways for water movement were identified in the seismic record; they varied from buried irregular surfaces to large-scale subsidence flexures and vertical fractures or enlarged solution conduits. Generally, the upper Peace River is characterized by a shallow, buried irregular top of rock, numerous observed sinkholes, and subsidence depressions. The downward head gradient provides potential for the Peace River to lose water to the ground-water system. Along the middle Peace River area, head gradients alternate between downward and upward, creating both recharging and discharging ground-water conditions. Seismic records show that buried, laterally continuous reflectors in the lower Peace River pinch out in the middle Peace River streambed. Small springs have been observed along the streambed where these units pinch out. This area corresponds to the region where highest ground-water seepage volumes were measured during this study. Further south, along the lower Peace River, upward head gradients provide conditions for ground-water discharge into the Peace River. Generally, confinement between the surficial aquifer and the confined ground-water systems in this area is better than to the north. However, localized avenues for surface-water and ground-water interactions may exist along discontinuities observed in seismic reflectors associated with large-scale flexures or subsidence features.</p><p>Ground-water seepage gains or losses along the Peace River were quantified by making three seepage runs during periods of: (1) low base flow, (2) high base flow, and (3) high flow. Low and high base-flow seepage runs were performed along a 74-mile length of the Peace River, between Bartow and Nocatee. Maximum losses of 17.3 cubic feet per second (11.2 million gallons per day) were measured along a 3.2-mile reach of the upper Peace River. The high-flow seepage run was conducted to quantify losses in the Peace River channel and floodplain between Bartow and Fort Meade. Seepage losses calculated during high-flow along a 7.2-mile reach of the Peace River, from the Clear Springs Mine bridge to the Mobil Mine bridge, were approximately 10 percent of the river flow, or 118 cubic feet per second. Calculated seepages along the Peace River in Hardee and De Soto Counties were inconclusive, because most seepages were within the range of discharge measurement error.</p><p>Two continuous aerial thermal infrared imagery surveys were conducted to locate sites of ground-water discharge along the Peace River. Although temperature and hydrologic conditions were ideal to observe spring flow using thermal infrared imaging techniques, no sources of ground-water discharge were identified using this method. Diffuse ground-water seepage may, however, provide significant ground-water discharge.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri974211","usgsCitation":"Lewelling, B., Tihansky, A., and Kindinger, J., 1998, Assessment of the hydraulic connection between ground water and the Peace River, west-central Florida: U.S. Geological Survey Water-Resources Investigations Report 97-4211, vi, 96 p., https://doi.org/10.3133/wri974211.","productDescription":"vi, 96 p.","costCenters":[],"links":[{"id":2249,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wri974211/","linkFileType":{"id":5,"text":"html"}},{"id":120163,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/wri_97_4211.jpg"},{"id":411395,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_48820.htm","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Florida","otherGeospatial":"Peace River","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -81.9375,\n              27.9214\n            ],\n            [\n              -81.9375,\n              27.1428\n            ],\n            [\n              -81.75,\n              27.1428\n            ],\n            [\n              -81.75,\n              27.9214\n            ],\n            [\n              -81.9375,\n              27.9214\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abae4b07f02db671d24","contributors":{"authors":[{"text":"Lewelling, B. R.","contributorId":17969,"corporation":false,"usgs":true,"family":"Lewelling","given":"B. R.","affiliations":[],"preferred":false,"id":199616,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tihansky, A. B. 0000-0003-1681-1601","orcid":"https://orcid.org/0000-0003-1681-1601","contributorId":77956,"corporation":false,"usgs":true,"family":"Tihansky","given":"A. B.","affiliations":[],"preferred":false,"id":199618,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kindinger, J. L.","contributorId":38983,"corporation":false,"usgs":true,"family":"Kindinger","given":"J. L.","affiliations":[],"preferred":false,"id":199617,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":23555,"text":"ofr96209 - 1998 - Simulation of ground-water flow in the Albuquerque Basin, central New Mexico, 1901-95, with projections to 2020","interactions":[],"lastModifiedDate":"2012-02-02T00:08:09","indexId":"ofr96209","displayToPublicDate":"1998-07-01T00:00:00","publicationYear":"1998","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":"96-209","title":"Simulation of ground-water flow in the Albuquerque Basin, central New Mexico, 1901-95, with projections to 2020","docAbstract":"The ground-water-flow model of the Albuquerque Basin (Kernodle,  \r\nJ.M., McAda, D.P., and Thorn, C.R., 1995, Simulation of ground-water flow \r\nin the Albuquerque Basin, central New Mexico, with projections to \r\n2020: U.S. Geological Survey Water-Resources Investigations Report \r\n94-4251, 114 p.) was updated to include new information on the \r\nhydrogeologic framework (Hawley, J.W., Haase, C.S., and Lozinsky, \r\nR.P., 1995, An underground view of the Albuquerque Basin: Proceedings \r\nof the 39th Annual New Mexico Water Conference, November 3-4, 1994,\r\np. 37-55). An additional year of ground-water-withdrawal data was  \r\nappended to the simulation of the historical period and incorporated \r\ninto the base for future projections to the year 2020. The revised \r\nmodel projects the simulated ground-water levels associated with an \r\naerally enlarged occurrence of the relatively high hydraulic conductivity \r\nin the upper part of the Santa Fe Group east and west of the Rio Grande \r\nin the Albuquerque area and north to Bernalillo. Although the differences \r\nbetween the two model versions are substantial, the revised model does not \r\ncontradict any previous conclusions about the effect of City of Albuquerque \r\nground-water withdrawals on flow in the Rio Grande or the net benefits \r\nof an effort to conserve ground water. Recent revisions to the hydrogeologic \r\nmodel (Hawley, J.W., Haneberg, W.C., and Whitworth, P.M., in press, \r\nHydrogeologic investigations in the Albuquerque Basin, central New Mexico, \r\n1992-1995: Socorro, New Mexico Bureau of Mines and Mineral Resources Open- \r\nFile Report 402) of the Albuquerque Basin eventually will require that this \r\nmodel version also be revised and updated.","language":"ENGLISH","publisher":"U.S. Geological Survey, [Water Resources Division, New Mexico District],","doi":"10.3133/ofr96209","issn":"0094-9140","usgsCitation":"Kernodle, J.M., 1998, Simulation of ground-water flow in the Albuquerque Basin, central New Mexico, 1901-95, with projections to 2020: U.S. Geological Survey Open-File Report 96-209, v, 54 p. :ill., maps ;28 cm., https://doi.org/10.3133/ofr96209.","productDescription":"v, 54 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":156533,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1996/0209/report-thumb.jpg"},{"id":52847,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1996/0209/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f8e4b07f02db5f2aa5","contributors":{"authors":[{"text":"Kernodle, J. M.","contributorId":81139,"corporation":false,"usgs":true,"family":"Kernodle","given":"J.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":190309,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":21754,"text":"ofr98127 - 1998 - Drainage from adits and tailings piles in the Coeur d'Alene mining district, Idaho; sampling, analytical methods and results","interactions":[],"lastModifiedDate":"2019-05-10T08:52:17","indexId":"ofr98127","displayToPublicDate":"1998-07-01T00:00:00","publicationYear":"1998","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":"98-127","title":"Drainage from adits and tailings piles in the Coeur d'Alene mining district, Idaho; sampling, analytical methods and results","docAbstract":"<p>This report contains information about collecting, handling, and analyzing waters draining from adits and seeping from beneath tailings piles in the Coeur d'Alene mining district during August 1996, November 1996, and June 1997. Data include temperature, pH, conductivity, dissolved oxygen, alkalinity, flow, and total acid soluble and dissolved (&lt;0.45 \\im) major and trace ion concentrations for 11 adits and 5 tailings deposits. Interpretations of these data will be discussed in other publications.</p>","language":"English","publisher":"U.S. Geological Survey,","publisherLocation":"Reston, VA","doi":"10.3133/ofr98127","issn":"0566-8174","usgsCitation":"Balistrieri, L.S., Bookstrom, A., Box, S.E., and Ikramuddin, M., 1998, Drainage from adits and tailings piles in the Coeur d'Alene mining district, Idaho; sampling, analytical methods and results: U.S. Geological Survey Open-File Report 98-127, 19 p., https://doi.org/10.3133/ofr98127.","productDescription":"19 p.","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":51255,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0127/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":152991,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0127/report-thumb.jpg"}],"country":"United States","state":"Idaho","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a61e4b07f02db635f5a","contributors":{"authors":[{"text":"Balistrieri, Laurie S. 0000-0002-6359-3849 balistri@usgs.gov","orcid":"https://orcid.org/0000-0002-6359-3849","contributorId":1406,"corporation":false,"usgs":true,"family":"Balistrieri","given":"Laurie","email":"balistri@usgs.gov","middleInitial":"S.","affiliations":[{"id":200,"text":"Coop Res Unit Seattle","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true},{"id":662,"text":"Western Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":762437,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bookstrom, A. A.","contributorId":94681,"corporation":false,"usgs":true,"family":"Bookstrom","given":"A. A.","affiliations":[],"preferred":false,"id":185547,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Box, S. E.","contributorId":38567,"corporation":false,"usgs":true,"family":"Box","given":"S.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":185544,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ikramuddin, Mohammed","contributorId":46115,"corporation":false,"usgs":true,"family":"Ikramuddin","given":"Mohammed","email":"","affiliations":[],"preferred":false,"id":185545,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":6644,"text":"fs00398 - 1998 - Changes in sediment and nutrient storage in three reservoirs in the lower Susquehanna River Basin and implications for the Chesapeake Bay","interactions":[],"lastModifiedDate":"2018-02-20T14:26:05","indexId":"fs00398","displayToPublicDate":"1998-04-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"003-98","title":"Changes in sediment and nutrient storage in three reservoirs in the lower Susquehanna River Basin and implications for the Chesapeake Bay","docAbstract":"<p>The Susquehanna River contributes nearly 50 percent of the freshwater discharge to the Chesapeake Bay in a year of normal or average streamflow. The river also transports the greatest amount of nutrients (estimates of nearly 66 percent of the nitrogen and 40 percent of the phosphorus load) from all nontidal areas in the Chesapeake Bay Basin. Excessive nutrients in the Bay result in algal blooms that decrease the amount of light reaching submerged aquatic vegetation, and upon decomposition, deplete the oxygen in the water. In a normal-flow year, the Susquehanna River also contributes about 25 percent of the sediment load from non-tidal areas to the Bay. Suspended sediments also reduce light needed by submerged aquatic vegetation and can smother living-resource habitat and obstruct fish gills.</p><p>A reservoir system consisting of Lake Clarke, Lake Aldred, and Conowingo Reservoir is formed by three consecutive hydroelectric dams on the Lower Susquehanna River. Safe Harbor Dam, which forms Lake Clarke, was built in 1931. Holtwood Dam, the smallest of the three, was built in 1910 to form Lake Aldred. The largest and most downstream dam, Conowingo Dam, was built in 1928 and forms Conowingo Reservoir. Since construction, the reservoirs have been filling with sediment and sediment-associated nutrients. The upper two reservoirs have reached their capacity to store sediments and generally no longer trap nutrients and sediments. Conowingo Reservoir has not reached storage capacity, however, and is currently trapping about 70 percent of the suspended-sediment load, 2 percent of the total-nitrogen load, and 40 percent of the total-phosphorus load that would otherwise be discharged to the Chesapeake Bay (Ott and others, 1991).</p><p>In 1990, 1993, and 1996, the U.S. Geological Survey collected information on the depth to sediment in the reservoirs to determine the remaining sediment-storage capacity in the reservoir system and to estimate when the reservoirs will reach sediment-storage capacity. In addition, sediment cores were collected and analyzed in 1993 and 1996 to determine the nutrient mass remaining in the Conowingo Reservoir. The 1996 data collection followed a major flood in the Susquehanna River Basin.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/fs00398","usgsCitation":"Langland, M.J., 1998, Changes in sediment and nutrient storage in three reservoirs in the lower Susquehanna River Basin and implications for the Chesapeake Bay: U.S. Geological Survey Fact Sheet 003-98, 4 p., https://doi.org/10.3133/fs00398.","productDescription":"4 p.","costCenters":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true}],"links":[{"id":121629,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/fs/1998/0003/coverthb2.jpg"},{"id":34070,"rank":299,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/fs/1998/0003/fs19980003.pdf","text":"Report","linkFileType":{"id":1,"text":"pdf"}}],"contact":"<p><a href=\"mailto:dc_md@usgs.gov\" data-mce-href=\"mailto:dc_md@usgs.gov\">Director</a>, <a href=\"https://pa.water.usgs.gov/\" data-mce-href=\"https://pa.water.usgs.gov/\">Pennsylvania Water Science Center</a><br> U.S. Geological Survey <br> 215 Limekiln Road <br> New Cumberland, PA 17070</p>","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e5e4b07f02db5e6c4b","contributors":{"authors":[{"text":"Langland, Michael J. 0000-0002-8350-8779 langland@usgs.gov","orcid":"https://orcid.org/0000-0002-8350-8779","contributorId":2347,"corporation":false,"usgs":true,"family":"Langland","given":"Michael","email":"langland@usgs.gov","middleInitial":"J.","affiliations":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true}],"preferred":true,"id":153091,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":6922,"text":"fs16097 - 1998 - Low-flow water-quality characterization of the Gore Creek watershed, upper Colorado River basin, Colorado, August 1996","interactions":[],"lastModifiedDate":"2012-02-02T00:05:47","indexId":"fs16097","displayToPublicDate":"1998-04-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"160-97","title":"Low-flow water-quality characterization of the Gore Creek watershed, upper Colorado River basin, Colorado, August 1996","docAbstract":"The Upper Colorado River Basin (UCOL) is one of 59 National Water-Quality Assessment (NAWQA) study units designed to assess the status and trends of the Nation?s water quality (Leahy and others, 1990). The UCOL study unit began operation in 1994, and surface-water-quality data collection at a network of 14 sites began in October 1995 (Apodaca and others, 1996; Spahr and others, 1996). Gore Creek, which flows through Vail, Colorado, originates in pristine alpine headwaters and is designated a gold-medal trout fishery. The creek drains an area of about 102 square miles and is a tributary to the Eagle River. Gore Creek at the mouth near Minturn (site 13 in fig. 1) is one of the 14 sites in the UCOL network. This site was selected to evaluate water quality resulting from urban development and recreational land use. The Gore Creek watershed has undergone rapid land-use changes since the 1960?s as the Vail area shifted from traditional mountain ranchlands to a four-season resort community. Residential, recreational, commercial, and transportation development continues near Gore Creek and its tributaries to support the increasing permanent and tourist population of the area. Interstate 70 runs through the watershed from Vail Pass near site 14, along the eastern side of Black Gore Creek, and along the northern side of the main stem of Gore Creek to the mouth of the watershed (fig. 1). A major local concern is how increasing urbanization/recreation affects the water quality, gold-medal trout fishery, and aesthetic values of Gore Creek. An evaluation of the spatial characteristics of water quality in the watershed upstream from site 13 at the mouth of Gore Creek (fig. 1) can provide local water and land managers with information necessary to establish water policy and make land-use planning decisions to maintain or improve water quality. Historical data collected at the mouth of Gore Creek provide information about water quality resulting from land use, but a synoptic sampling is needed to determine the distribution and sources of water-quality constituents at one point in time. In August 1996, a low-flow synoptic sampling for analyses of water-quality properties and constituents at sites in the Gore Creek watershed was done by the U.S. Geological Survey, in cooperation with the Town of Vail, Eagle River Water and Sanitation District, Upper Eagle River Water Authority, and Northwest Colorado Council of Governments, to evaluate the water quality of Gore Creek. The August low-flow period can be important from water-quality and stream ecology perspectives. There is less water available to dilute any contaminants entering the streams, and stream temperatures are highest during August. Physical habitat for aquatic plants and animals is smaller than during most other times of the year. To address these more extreme water-quality and ecological conditions, the synoptic sampling was conducted during the summer low-flow period. Specific objectives of this sampling included: 1. Establish a current data set representing the spatial characteristics of low-flow water-quality conditions in the Gore Creek watershed, and 2. Develop some understanding of land-use and water-quality relations in the watershed. This fact sheet presents hydrologic background information and an analysis of general water-quality properties and constituents, trace elements, and nutrients collected in water samples during low-flow synoptic sampling of the Gore Creek watershed. The U.S. Geological Survey also is conducting a study of the algae and macroinvertebrate communities and physical habitat of streams in the Gore Creek watershed during low flow. This study is designed to provide information about land-use and stream ecology relations in the watershed.","language":"ENGLISH","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey :\r\nNational Water-Quality Assessment,","doi":"10.3133/fs16097","usgsCitation":"Wynn, K.H., and Spahr, N.E., 1998, Low-flow water-quality characterization of the Gore Creek watershed, upper Colorado River basin, Colorado, August 1996: U.S. Geological Survey Fact Sheet 160-97, [4] p. : col. ill., col. map ; 28 cm. col. ill., col. map ;, https://doi.org/10.3133/fs16097.","productDescription":"[4] p. : col. ill., col. map ; 28 cm. col. ill., col. map ;","costCenters":[],"links":[{"id":703,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/fs-160-97/","linkFileType":{"id":5,"text":"html"}},{"id":125127,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/fs/1997/0160/report-thumb.jpg"},{"id":34213,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/fs/1997/0160/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a7fe4b07f02db6487ea","contributors":{"authors":[{"text":"Wynn, Kirby H.","contributorId":37316,"corporation":false,"usgs":true,"family":"Wynn","given":"Kirby","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":153570,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Spahr, Norman E. nspahr@usgs.gov","contributorId":1977,"corporation":false,"usgs":true,"family":"Spahr","given":"Norman","email":"nspahr@usgs.gov","middleInitial":"E.","affiliations":[],"preferred":true,"id":153569,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":22293,"text":"ofr98632 - 1998 - Water use and quality of fresh surface-water resources in the Barataria-Terrebonne Basins, Louisiana","interactions":[],"lastModifiedDate":"2024-06-13T20:53:28.720624","indexId":"ofr98632","displayToPublicDate":"1998-03-18T00:00:00","publicationYear":"1998","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":"98-632","title":"Water use and quality of fresh surface-water resources in the Barataria-Terrebonne Basins, Louisiana","docAbstract":"<p>Approximately 170 Mgal/d (million gallons per day) of ground- and surface-water was withdrawn from the Barataria-Terrebonne Basins in 1995. Of this amount, surface water accounted for 64 percent ( 110 MgaVd) of the total withdrawal rates in the basins. The largest surface-water withdrawal rates were from Bayou Lafourche ( 40 Mgal/d), Bayou Boeuf ( 14 MgaVd), and the Gulf Intracoastal Waterway (4.2 Mgal/d). The largest ground-water withdrawal rates were from the Mississippi River alluvial aquifer (29 Mgal/d), the Gonzales-New Orleans aquifer (9.5 Mgal/d), and the Norco aquifer (3.6 MgaVd).</p>\n\n<br>\n\n<p>The amounts of water withdrawn in the basins in 1995 differed by category of use. Public water suppliers within the basins withdrew 41 Mgal/d of water. The five largest public water suppliers in the basins withdrew 30 Mgal/d of surface water: Terrebonne Waterworks District 1 withdrew the largest amount, almost 15 MgaVd. Industrial facilities withdrew 88 Mgal/d, fossil-fuel plants withdrew 4.7 MgaVd, and commercial facilities withdrew 0.67 MgaVd. Aggregate water-withdrawal rates, compiled by parish for aquaculture (37 Mgal/d), livestock (0.56 Mgal/d), rural domestic (0.44 MgaVd), and irrigation uses (0.54 MgaVd), totaled about 38 MgaVd in the basins. Ninety-five percent of aquaculture withdrawal rates, primarily for crawfish and alligator farming, were from surface-water sources.</p>\n\n>br>\n\n<p>Total water-withdrawal rates increased 221 percent from 1960–95. Surface-water withdrawal rates have increased by 310 percent, and ground-water withdrawal rates have increased by 133 percent. The projection for the total water-withdrawal rates in 2020 is 220 MgaVd, an increase of 30 percent from 1995. Surface-water withdrawal rates would account for 59 percent of the total, or 130 Mgal/d. Surface-water withdrawal rates are projected to increase by 20 percent from 1995 to 2020.</p>\n\n<br>\n\n<p>Analysis of water-quality data from the Mississippi River indicates that the main threats to surface water resources are from the herbicide atrazine and excessive nutrients. Atrazine concentrations in the Mississippi River at Baton Rouge briefly exceed the U.S. Environmental Protection Agency maximum contaminant level of 3.0 micrograms per liter during periods in the late spring and early summer. Trace metals in bottom material collected from Bayou Lafourche indicate that the reach of Bayou Lafourche from Donaldsonville to Golden Meadow is adversely affected by low-level contamination. Dissolved nitrate had a mean concentration of 1.4 milligrams per liter in the Mississippi River near Bayou Lafourche and can contribute to excessive plant growth.</p>\n\n<br>\n\n<p>Long-term salinity records near Bayou Lafourche indicate no pronounced trends, with the exception of the Gulf Intracoastal Waterway at Houma. At this site, salinities remained low until 1961, when the Gulf Intracoastal Waterway was connected to the Gulf of Mexico by the Houma Navigation Canal. The sources of saltwater are variable. Some saltwater has entered Bayou Lafourche south of the Gulf Intracoastal Waterway; at other times saltwater has moved up the Houma Navigation Canal and has flowed east in the Gulf Intracoastal Waterway, north into Company Canal, and southeast in Bayou Lafourche towards Larose, Louisiana.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr98632","issn":"0094-9140","collaboration":"Prepared in cooperation with the Barataria-Terrebonne National Estuary Program","usgsCitation":"Johnson-Thibaut, P.M., Demcheck, D.K., Swarzenski, C.M., and Ensminger, P.A., 1998, Water use and quality of fresh surface-water resources in the Barataria-Terrebonne Basins, Louisiana: U.S. Geological Survey Open-File Report 98-632, Report: iv, 47 p.; 1 Map: 24.00 x 18.00 inches, https://doi.org/10.3133/ofr98632.","productDescription":"Report: iv, 47 p.; 1 Map: 24.00 x 18.00 inches","numberOfPages":"52","onlineOnly":"Y","costCenters":[{"id":369,"text":"Louisiana Water Science Center","active":true,"usgs":true}],"links":[{"id":430164,"rank":5,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_16372.htm","linkFileType":{"id":5,"text":"html"}},{"id":283814,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1998/ofr98-632/pdf/of1998-632_plate1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":283812,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1998/ofr98-632/","linkFileType":{"id":1,"text":"pdf"}},{"id":283813,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/ofr98-632/pdf/of1998-632.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":283816,"rank":4,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"Louisiana","otherGeospatial":"Barataria-Terrebonne Basins","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -91.81954122716522,\n              30.762616503019416\n            ],\n            [\n              -91.81954122716522,\n              29.036394388511\n            ],\n            [\n              -89.743022989434,\n              29.036394388511\n            ],\n            [\n              -89.743022989434,\n              30.762616503019416\n            ],\n            [\n              -91.81954122716522,\n              30.762616503019416\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f4e4b07f02db5f004f","contributors":{"authors":[{"text":"Johnson-Thibaut, Penny M.","contributorId":10830,"corporation":false,"usgs":true,"family":"Johnson-Thibaut","given":"Penny","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":187941,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Demcheck, Dennis K. 0000-0003-2981-078X ddemchec@usgs.gov","orcid":"https://orcid.org/0000-0003-2981-078X","contributorId":3273,"corporation":false,"usgs":true,"family":"Demcheck","given":"Dennis","email":"ddemchec@usgs.gov","middleInitial":"K.","affiliations":[],"preferred":true,"id":187939,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Swarzenski, Christopher M. 0000-0001-9843-1471 cswarzen@usgs.gov","orcid":"https://orcid.org/0000-0001-9843-1471","contributorId":656,"corporation":false,"usgs":true,"family":"Swarzenski","given":"Christopher","email":"cswarzen@usgs.gov","middleInitial":"M.","affiliations":[{"id":24708,"text":"Lower Mississippi-Gulf Water Science Center","active":true,"usgs":true},{"id":369,"text":"Louisiana Water Science Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":187938,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ensminger, Paul A. 0000-0002-0536-0369 paensmin@usgs.gov","orcid":"https://orcid.org/0000-0002-0536-0369","contributorId":4754,"corporation":false,"usgs":true,"family":"Ensminger","given":"Paul","email":"paensmin@usgs.gov","middleInitial":"A.","affiliations":[{"id":24708,"text":"Lower Mississippi-Gulf Water Science Center","active":true,"usgs":true}],"preferred":true,"id":187940,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70181805,"text":"70181805 - 1998 - Intercomparison of principal hydrometric instruments; Third phase, Evaluation of ultrasonic velocity meters for flow measurement in streams, canals, and estuaries","interactions":[],"lastModifiedDate":"2017-02-14T13:27:48","indexId":"70181805","displayToPublicDate":"1998-03-10T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":4,"text":"Other Government Series"},"title":"Intercomparison of principal hydrometric instruments; Third phase, Evaluation of ultrasonic velocity meters for flow measurement in streams, canals, and estuaries","docAbstract":"<p><span>As part of the World Meteorological Organization (</span><span class=\"searchword\">WMO</span><span>) project </span><span class=\"searchword\">Intercomparison</span><span> of </span><span class=\"searchword\">Principal</span> <span class=\"searchword\">Hydrometric</span> <span class=\"searchword\">Instruments</span><span>, </span><span class=\"searchword\">Third</span> <span class=\"searchword\">Phase</span><span>, a questionnaire was prepared by the U.S. Geological Survey (USGS) on the application of </span><span class=\"searchword\">Ultrasonic</span> <span class=\"searchword\">Velocity</span> <span class=\"searchword\">Meters</span><span> (UVM's) for </span><span class=\"searchword\">flow</span><span class=\"searchword\">measurement</span><span> in </span><span class=\"searchword\">streams</span><span>, </span><span class=\"searchword\">canals</span><span>, and </span><span class=\"searchword\">estuaries</span><span>. In 1996, this questionnaire was distributed internationally by the </span><span class=\"searchword\">WMO</span><span> and USGS, and distributed within the United States by the USGS. Completed questionnaires were returned by 26 agencies in 7 countries (Canada, France, Germany, The Netherlands, Switzerland, the United Kingdom, and the United States). The completed questionnaires described geometric and streamflow conditions, system configurations, and reasons for applying UVM systems for 260 sites, thus providing information on the applicability of UVM systems throughout the world. The completed questionnaires also provided information on operational issues such as (1) methods used to determine and verify UVM ratings, (2) methods used to determine the mean flow velocity for UVM systems, (3) operational reliability of UVM systems, (4) methods to estimate missing data, (5) common problems with UVM systems and guidelines to mitigate these problems, and (6) personnel training issues. The completed questionnaires also described a few unique or novel applications of UVM systems. In addition to summarizing the completed questionnaires, this report includes a brief overview of UVM application and operation, and a short summary of current (1998) information from UVM system manufacturers regarding system cost and capabilities. On the basis of the information from the completed questionnaires and provided by the manufacturers, the general applicability of UVM systems is discussed. In the finalisation of this report the financial support provided by the US National Committee for Scientific Hydrology is gratefully acknowledged.</span></p>","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"WMO/TD","largerWorkSubtype":{"id":4,"text":"Other Government Series"},"language":"English","publisher":"World Meteorological Organization","publisherLocation":"Geneva, Switzerland","usgsCitation":"Melching, C.S., and Meno, M.W., 1998, Intercomparison of principal hydrometric instruments; Third phase, Evaluation of ultrasonic velocity meters for flow measurement in streams, canals, and estuaries.","costCenters":[],"links":[{"id":335363,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58a4253be4b0c825128ad481","contributors":{"authors":[{"text":"Melching, Charles S.","contributorId":8135,"corporation":false,"usgs":true,"family":"Melching","given":"Charles","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":668648,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Meno, Michael W.","contributorId":181570,"corporation":false,"usgs":false,"family":"Meno","given":"Michael","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":668649,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":5871,"text":"pp1573 - 1998 - Sediment transport at gaging stations near Mount St. Helens, Washington, 1980-90. Data collection and analysis","interactions":[],"lastModifiedDate":"2021-12-21T21:01:30.440904","indexId":"pp1573","displayToPublicDate":"1998-03-01T00:00:00","publicationYear":"1998","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":"1573","title":"Sediment transport at gaging stations near Mount St. Helens, Washington, 1980-90. Data collection and analysis","docAbstract":"<p>River sedimentation caused by the May 18, 1980, eruption of Mount St. Helens, Washington, has been monitored in a continuing program by the U.S. Geological Survey. In this report, sediment discharge and changes in sediment transport are summarized from data collected at stream-gaging stations near Mount St. Helens during the years 1980 through 1990. The objectives of the monitoring program included collection of data for calculation of total sediment discharge, computation of daily suspended-sediment discharge, and detailed observations of unique sediment-laden flows. Over the 11-year period, most sediment data were collected at gaging stations on seven eruption affected streams: the Green River, the North and South Fork Toutle Rivers, the Toutle River, the Cowlitz River, Clearwater Creek, and the Muddy River.</p>\n<br/>\n<p>About 170 million tons of sediment (excluding volcanic debris flows) were transported in suspension from the Toutle River basin during water years 1980–90. Another 13 million tons were transported past the gaging stations on Muddy River in the upper Lewis River basin during water years 1982–90. Long-term reductions in sediment concentration occurred within most ranges of stream discharge at streams dominated by transport from the debris-avalanche deposit and at streams in drainage basins with extensive airfall deposits. Reductions in sediment concentration were less apparent at upper ranges of discharge in two streams dominated by lahar deposits, the South Fork Toutle River and the Muddy River.</p>\n<br/>\n<p>Bed material, suspended sediment, and bedload were sampled periodically and analyzed for size distributions. Bed material and bedload coarsened with time at some stations. Median particle sizes of suspended sediment did not show a simple relation with time. During water years 1980–84, bed material in the lower Toutle River was medium to coarse sand. During the same period, bed material in the North Fork Toutle River was coarse sand and fine gravel. By 1990, bedload samples collected in the North Fork Toutle River (downstream from the sediment-retention structure) were typically coarse gravel.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/pp1573","usgsCitation":"Dinehart, R.L., 1998, Sediment transport at gaging stations near Mount St. Helens, Washington, 1980-90. Data collection and analysis (Revised June 5, 2008): U.S. Geological Survey Professional Paper 1573, Report: x, 105 p.; Readme, https://doi.org/10.3133/pp1573.","productDescription":"Report: x, 105 p.; Readme","numberOfPages":"118","additionalOnlineFiles":"Y","costCenters":[{"id":157,"text":"Cascades Volcano Observatory","active":false,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":279267,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":393255,"rank":5,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_13148.htm"},{"id":279266,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/pp/1573/readme.htm"},{"id":32685,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/1573/pdf/PP1573.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":713,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/pp/1573/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Washington","otherGeospatial":"Clearwater Creek, Cowlitz River, Green River, Mount St. Helens, Muddy River, North Fork Toutle River, South Fork Toutle River, Toutle River","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -122.95,\n              46.05\n            ],\n            [\n              -121.95,\n              46.05\n            ],\n            [\n              -121.95,\n              46.583\n            ],\n            [\n              -122.95,\n              46.583\n            ],\n            [\n              -122.95,\n              46.05\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","edition":"Revised June 5, 2008","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0be4b07f02db5fbf3d","contributors":{"authors":[{"text":"Dinehart, Randal L.","contributorId":21151,"corporation":false,"usgs":true,"family":"Dinehart","given":"Randal","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":151713,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":6447,"text":"pp1424D - 1998 - Hydrogeologic framework of the Puget Sound aquifer system, Washington and British Columbia","interactions":[{"subject":{"id":22198,"text":"ofr96353 - 1997 - Summary of the Puget-Willamette Lowland regional aquifer-system analysis, Washington, Oregon, and British Columbia","indexId":"ofr96353","publicationYear":"1997","noYear":false,"title":"Summary of the Puget-Willamette Lowland regional aquifer-system analysis, Washington, Oregon, and British Columbia"},"predicate":"SUPERSEDED_BY","object":{"id":6447,"text":"pp1424D - 1998 - Hydrogeologic framework of the Puget Sound aquifer system, Washington and British Columbia","indexId":"pp1424D","publicationYear":"1998","noYear":false,"chapter":"D","title":"Hydrogeologic framework of the Puget Sound aquifer system, Washington and British Columbia"},"id":1}],"lastModifiedDate":"2023-01-06T19:24:24.551204","indexId":"pp1424D","displayToPublicDate":"1998-03-01T00:00:00","publicationYear":"1998","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":"1424","chapter":"D","title":"Hydrogeologic framework of the Puget Sound aquifer system, Washington and British Columbia","docAbstract":"This report presents the generalized hydrogeologic framework of the Puget Sound aquifer system in Washington and British Columbia. The framework includes a conceptual model of the division of the aquifer system into regional hydrogeologic units for describing on a regional basis the ground-water flow in the system. The conceptual model is based on an analysis of historical data and on results of cross-sectional numerical models of ground-water flow.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/pp1424D","usgsCitation":"Vaccaro, J.J., Hansen, A.J., and Jones, M., 1998, Hydrogeologic framework of the Puget Sound aquifer system, Washington and British Columbia: U.S. Geological Survey Professional Paper 1424, Report: vii, 77 p.; 1 Plate: 40.00 x 32.00 inches, https://doi.org/10.3133/pp1424D.","productDescription":"Report: vii, 77 p.; 1 Plate: 40.00 x 32.00 inches","costCenters":[],"links":[{"id":411508,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_13145.htm","linkFileType":{"id":5,"text":"html"}},{"id":33866,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/1424d/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":33865,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1424d/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":118182,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/pp/1424d/report-thumb.jpg"}],"country":"Canada, United States","state":"British Columbia, Washington","otherGeospatial":"Puget Sound aquifer system","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -124.06132108981615,\n              49.254548392531206\n            ],\n            [\n              -124.06132108981615,\n              46.980785167463864\n            ],\n            [\n              -121.87752582623631,\n              46.980785167463864\n            ],\n            [\n              -121.87752582623631,\n              49.254548392531206\n            ],\n            [\n              -124.06132108981615,\n              49.254548392531206\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4ee4b07f02db627a14","contributors":{"authors":[{"text":"Vaccaro, J. J.","contributorId":48173,"corporation":false,"usgs":true,"family":"Vaccaro","given":"J.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":152737,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hansen, Arnold J. Jr.","contributorId":84336,"corporation":false,"usgs":true,"family":"Hansen","given":"Arnold","suffix":"Jr.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":152738,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jones, M. A.","contributorId":37736,"corporation":false,"usgs":true,"family":"Jones","given":"M. A.","affiliations":[],"preferred":false,"id":152736,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70047752,"text":"70047752 - 1998 - Hydrology and snowmelt simulation of Snyderville Basin, Park City, and adjacent areas, Summit County, Utah","interactions":[],"lastModifiedDate":"2017-01-05T17:07:47","indexId":"70047752","displayToPublicDate":"1998-01-01T15:32:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":4,"text":"Other Government Series"},"seriesTitle":{"id":294,"text":"Technical Publication","active":false,"publicationSubtype":{"id":4}},"seriesNumber":"115","title":"Hydrology and snowmelt simulation of Snyderville Basin, Park City, and adjacent areas, Summit County, Utah","docAbstract":"<p>Increasing residential and commercial development is placing increased demands on the ground- and surface-water resources of Snyderville Basin, Park City, and adjacent areas in the southwestern corner of Summit County, Utah. Data collected during 1993-95 were used to assess the quantity and quality of the water resources in the study area.</p><p>Ground water within the study area is present in consolidated rocks and unconsolidated valley fill. The complex geology makes it difficult to determine the degree of hydraulic connection between different blocks of consolidated rocks. Increased ground-water withdrawal during 1983- 95 generally has not affected ground-water levels. Ground-water withdrawal in some areas, however, caused seasonal fluctuations and a decline in ground-water levels from 1994 to 1995, despite greater-than-normal recharge in the spring of 1995.</p><p><br></p><p>Ground water generally has a dissolved-solids concentration that ranges from 200 to 600 mg/L. Higher sulfate concentrations in water from wells and springs near Park City and in McLeod Creek and East Canyon Creek than in other parts of the study area are the result of mixing with water that discharges from the Spiro Tunnel. The presence of chloride in water from wells and springs near Park City and in streams and wells near Interstate Highway 80 is probably caused by the dissolution of applied road salt. Chlorofluorocarbon analyses indicate that even though water levels rise within a few weeks of snowmelt, the water took 15 to 40 years to move from areas of recharge to areas of discharge.</p><p><br></p><p>Water budgets for the entire study area and for six subbasins were developed to better understand the hydrologic system. Ground-water recharge from precipitation made up about 80 percent of the ground-water recharge in the study area. Ground-water discharge to streams made up about 40 percent of the surface water in the study area and ground-water discharge to springs and mine tunnels made up about 25 percent. Increasing use of ground water has the potential to decrease discharge to streams and affect both the amount and quality of surface water in the study area. A comparison of the 1995 to 1994 water budgets emphasizes that the hydrologic system in the study area is very dependent upon the amount of annual precipitation. Although precipitation on the study area was much greater in 1995 than in 1994, most of the additional water resulted in additional streamflow and spring discharge that flows out of the study area. Ground-water levels and groundwater discharge are dependent upon annual precipitation and can vary substantially from year to year.</p><p><br></p><p>Snowmelt runoff was simulated to assist in estimating ground-water recharge to consolidated rock and unconsolidated valley fill. A topographically distributed snowmelt model controlled by independent inputs of net radiation, meteorological parameters, and snowcover properties was used to calculate the energy and mass balance of the snowcover.</p>","language":"English","publisher":"Utah Department of Natural Resources, Division of Water Rights","publisherLocation":"Salt Lake City, UT","collaboration":"Prepared by the United States Geological Survey in cooperation with the Utah Department of Natural Resources, Division of Water Rights; Park City; Summit County; and the Weber Basin Water Conservancy District","usgsCitation":"Brooks, L.E., Mason, J.L., and Susong, D.D., 1998, Hydrology and snowmelt simulation of Snyderville Basin, Park City, and adjacent areas, Summit County, Utah: Technical Publication 115, vi, 84 p.","productDescription":"vi, 84 p.","numberOfPages":"93","costCenters":[{"id":610,"text":"Utah Water Science Center","active":true,"usgs":true}],"links":[{"id":279943,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/unnumbered/70047752/report.pdf"},{"id":279942,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/unnumbered/70047752/report-thumb.jpg"},{"id":332236,"rank":3,"type":{"id":15,"text":"Index Page"},"url":"https://www.waterrights.utah.gov/cgi-bin/libview.exe?Modinfo=Viewpub&LIBNUM=50-1-165"}],"scale":"100000","projection":"Universal Transverse Mercator projection","country":"United States","state":"Utah","county":"Summit County","city":"Park City","otherGeospatial":"East Canyon Creek;Mcleod Creek;Snyderville Basin;Spiro Tunnel","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -111.646973,40.599669 ], [ -111.646973,40.819739 ], [ -111.432945,40.819739 ], [ -111.432945,40.599669 ], [ -111.646973,40.599669 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"529dba1ce4b0516126f68cf3","contributors":{"authors":[{"text":"Brooks, Lynette E. 0000-0002-9074-0939 lebrooks@usgs.gov","orcid":"https://orcid.org/0000-0002-9074-0939","contributorId":2718,"corporation":false,"usgs":true,"family":"Brooks","given":"Lynette","email":"lebrooks@usgs.gov","middleInitial":"E.","affiliations":[{"id":610,"text":"Utah Water Science Center","active":true,"usgs":true}],"preferred":true,"id":482893,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mason, James L.","contributorId":14397,"corporation":false,"usgs":true,"family":"Mason","given":"James","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":482894,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Susong, David D. ddsusong@usgs.gov","contributorId":1040,"corporation":false,"usgs":true,"family":"Susong","given":"David","email":"ddsusong@usgs.gov","middleInitial":"D.","affiliations":[{"id":610,"text":"Utah Water Science Center","active":true,"usgs":true}],"preferred":true,"id":482892,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70093983,"text":"70093983 - 1998 - Hydrogeology and groundwater quality of the glaciated valleys of Bradford, Tioga, and Potter Counties, Pennsylvania","interactions":[],"lastModifiedDate":"2014-02-14T15:39:23","indexId":"70093983","displayToPublicDate":"1998-01-01T15:09:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":2,"text":"State or Local Government Series"},"seriesTitle":{"id":143,"text":"Water Resource Report","active":false,"publicationSubtype":{"id":2}},"seriesNumber":"68","title":"Hydrogeology and groundwater quality of the glaciated valleys of Bradford, Tioga, and Potter Counties, Pennsylvania","docAbstract":"The most important sources of groundwater in Bradford, Tioga, and Potter Counties are the stratified-drift aquifers. Saturated sand and gravel primarily of outwash origin forms extensive unconfined aquifers in the valleys. Outwash is underlain in most major valleys by silt, clay, and very fine sand of lacustrine origin that comprise extensive confining units. The lacustrine confining units locally exceed 100 feet in thickness. Confined aquifers of ice-contact  sand and gravel are buried locally beneath the lacustrine deposits. Bedrock and till are the basal confining units of the stratifies-drift aquifer systems. Recharge to the stratified-drift aquifers if by direct infiltration of precipitation, tributary-stream infiltration, infiltration of unchanneled runoff at the valley walls, and groundwater inflow from the bedrock and till uplands. Valley areas underlain by superficial sand and gravel contribute about 1 million gallons per day per square mile of water from precipitation to the aquifers. Tributary streams provide recharge of nearly 590 gallons per day per foot of stream reach. Water is added at the rate of 1 million gallons per day per square mile of bordering uplands not drained by tributary streams to the stratified-drift aquifers from unchanneled runoff and groundwater inflow. Induced infiltration can be a major source of recharge to well fields completed in unconfined stratified-drift aquifers that are in good hydraulic connection with surface water. The well fields of an industrial site in North Towanda, a public-water supplier at Tioga Point, and the U.S. Fish and Wildlife Service at Asaph accounted for 75 percent of the 10.8 million gallons per day pf groundwater withdrawn by public suppliers and other selected users in 1985. The well fields tap stratified-drift aquifers that are substantially recharged by induced infiltration or tributary-stream infiltration. Specific-capacity data from 95 wells indicate that most wells completed in stratified-drift aquifers have specific capacities an order of magnitude greater than those completed in till and bedrock, Wells completed in unconfined stratified-drift aquifers and in bedrock aquifers have the highest and lowest median specific capacities -- 24 and 0.80 gallons per minute per foot of drawdown, respectively. Wells completed in confined stratified-drift aquifers and in till have median specific capacties of 11 and 0.87 gallons per minute per foot of drawdown, respectively. The results of 223 groundwater-quality analyses indicate two major hydrogeochemical zones: (1) a zone of unrestricted groundwater flow that contains water of the calcium bicarbonate type (this zone is found in almost all of the stratified-drift aquifers, till, and shallow bedrock systems); and (2) a zone of restricted groundwater slow that contains water of the sodium chloride type (this zone is found in the bedrock, and, in some areas, in till and confined stratified-drift aquifers). Samples pumped from wells that penetrate restricted-flow zones have median concentrations of total dissolved solids, dissolved chloride, and dissolved barium of 840 and 350 milligrams per liter, and 2,100 micrograms per liter, respectively. Excessive concentrations of iron and manganese are common in the groundwater of the study area; about 50 percent of the wells sampled contain water that has iron and manganese concentrations that exceed the U.S. Environmental Protection Agency secondary maximum contaminant levels of 300 and 50 micrograms per liter, respectively. Only water in the unconfined stratified-drift aquifers and the Catskill Formation has median concentrations lower than these limits.","language":"English","publisher":"Pennsylvania Geological Survey","publisherLocation":"Harrisburg, PA","isbn":"081820169X","collaboration":"Prepared by the United States Geological Survey, Water Resources Division, in cooperation with the Pennsylvania Geological Survey","usgsCitation":"Williams, J., Taylor, L.E., and Low, D.J., 1998, Hydrogeology and groundwater quality of the glaciated valleys of Bradford, Tioga, and Potter Counties, Pennsylvania: Water Resource Report 68, v, 89 p.","productDescription":"v, 89 p.","numberOfPages":"98","costCenters":[],"links":[{"id":282437,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Pennsylvania","county":"Bradford County;Potter County;Tioga County","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -78.367676,41.542419 ], [ -78.367676,42.002415 ], [ -76.101494,42.002415 ], [ -76.101494,41.542419 ], [ -78.367676,41.542419 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd6125e4b0b290850fd5c2","contributors":{"authors":[{"text":"Williams, John 0000-0002-6054-6908 jhwillia@usgs.gov","orcid":"https://orcid.org/0000-0002-6054-6908","contributorId":1553,"corporation":false,"usgs":true,"family":"Williams","given":"John","email":"jhwillia@usgs.gov","affiliations":[{"id":474,"text":"New York Water Science Center","active":true,"usgs":true}],"preferred":true,"id":490413,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Taylor, Larry E.","contributorId":73920,"corporation":false,"usgs":true,"family":"Taylor","given":"Larry","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":490415,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Low, Dennis J. djlow@usgs.gov","contributorId":3450,"corporation":false,"usgs":true,"family":"Low","given":"Dennis","email":"djlow@usgs.gov","middleInitial":"J.","affiliations":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true}],"preferred":true,"id":490414,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70021102,"text":"70021102 - 1998 - Salinity trends in surface waters of the Upper Colorado River Basin, Colorado","interactions":[],"lastModifiedDate":"2024-03-29T11:20:35.700744","indexId":"70021102","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2262,"text":"Journal of Environmental Quality","active":true,"publicationSubtype":{"id":10}},"title":"Salinity trends in surface waters of the Upper Colorado River Basin, Colorado","docAbstract":"<div class=\"\"><div class=\"article-section__content en main\"><p>Dissolved-solids data collected in the Upper Colorado River Basin upstream from Cameo, Colorado, and in the Gunnison River Basin were analyzed for trends in flow-adjusted dissolved-solids concentrations and loads for water years 1970 to 1993, 1980 to 1993, and 1986 to 1993. Trend results for flow-adjusted periodic dissolved-solids concentrations for the Colorado River Basin upstream from Cameo, CO, generally were downward or no trend was indicated. Trends in flow-adjusted monthly and annual dissolved-solids loads primarily were downward or absent. These trend results partly agree with the downward trends reported by a previous investigation for the Colorado River near Cameo site. In the Gunnison River Basin, trends in flow-adjusted dissolved-solids concentrations and loads were not detected for more than one-half of the site/analysis-period combinations. Of the trends that were present, most indicated decreases in concentrations and loads rather than increases. In both the Colorado River Basin upstream from Cameo, CO, and the Gunnison River Basin, trends in flow-adjusted dissolved-solids concentrations and flow-adjusted monthly and annual dissolved-solids loads may be affected by a variety of factors. These include channel evolution and hydrologic variation, water quality and flow rate of groundwater discharges and springs, sample size and period of record of dissolved-solids data, and changes in land use in the basin.</p></div></div>","language":"English","publisher":"Wiley","doi":"10.2134/jeq1998.00472425002700030023x","issn":"00472425","usgsCitation":"Bauch, N., and Spahr, N., 1998, Salinity trends in surface waters of the Upper Colorado River Basin, Colorado: Journal of Environmental Quality, v. 27, no. 3, p. 640-655, https://doi.org/10.2134/jeq1998.00472425002700030023x.","productDescription":"16 p.","startPage":"640","endPage":"655","numberOfPages":"16","costCenters":[],"links":[{"id":230051,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"27","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc8ffe4b08c986b32cbf0","contributors":{"authors":[{"text":"Bauch, N.J.","contributorId":64688,"corporation":false,"usgs":true,"family":"Bauch","given":"N.J.","email":"","affiliations":[],"preferred":false,"id":388649,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Spahr, N.E.","contributorId":79476,"corporation":false,"usgs":true,"family":"Spahr","given":"N.E.","email":"","affiliations":[],"preferred":false,"id":388650,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70021392,"text":"70021392 - 1998 - Operational modeling system with dynamic-wave routing","interactions":[],"lastModifiedDate":"2012-03-12T17:19:41","indexId":"70021392","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Operational modeling system with dynamic-wave routing","docAbstract":"A near real-time streamflow-simulation system utilizing continuous-simulation rainfall-runoff generation with dynamic-wave routing is being developed by the U.S. Geological Survey in cooperation with the Du Page County Department of Environmental Concerns for a 24-kilometer reach of Salt Creek in Du Page County, Illinois. This system is needed in order to more effectively manage the Elmhurst Quarry Flood Control Facility, an off-line stormwater diversion reservoir located along Salt Creek. Near real time simulation capabilities will enable the testing and evaluation of potential rainfall, diversion, and return-flow scenarios on water-surface elevations along Salt Creek before implementing diversions or return-flows. The climatological inputs for the continuous-simulation rainfall-runoff model, Hydrologic Simulation Program - FORTRAN (HSPF) are obtained by Internet access and from a network of radio-telemetered precipitation gages reporting to a base-station computer. The unit area runoff time series generated from HSPF are the input for the dynamic-wave routing model. Full Equations (FEQ). The Generation and Analysis of Model Simulation Scenarios (GENSCN) interface is used as a pre- and post-processor for managing input data and displaying and managing simulation results. The GENSCN interface includes a variety of graphical and analytical tools for evaluation and quick visualization of the results of operational scenario simulations and thereby makes it possible to obtain the full benefit of the fully distributed dynamic routing results.","largerWorkTitle":"Proceedings of the Annual Water Resources Planning and Management Conference","conferenceTitle":"Proceedings of the 1998 25th Annual Conference on Water Resources Planning and Management","conferenceDate":"7 June 1998 through 10 June 1998","conferenceLocation":"Chicago, IL, USA","language":"English","publisher":"ASCE","publisherLocation":"Reston, VA, United States","usgsCitation":"Ishii, A.L., Charlton, T., Ortel, T., and Vonnahme, C., 1998, Operational modeling system with dynamic-wave routing, <i>in</i> Proceedings of the Annual Water Resources Planning and Management Conference, Chicago, IL, USA, 7 June 1998 through 10 June 1998, p. 147-152.","startPage":"147","endPage":"152","numberOfPages":"6","costCenters":[],"links":[{"id":229752,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6e92e4b0c8380cd756e4","contributors":{"editors":[{"text":"Loucks E","contributorId":128438,"corporation":true,"usgs":false,"organization":"Loucks E","id":536472,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Ishii, A. L.","contributorId":61464,"corporation":false,"usgs":true,"family":"Ishii","given":"A.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":389705,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Charlton, T.J.","contributorId":64831,"corporation":false,"usgs":true,"family":"Charlton","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":389706,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ortel, T.W.","contributorId":102224,"corporation":false,"usgs":true,"family":"Ortel","given":"T.W.","affiliations":[],"preferred":false,"id":389707,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Vonnahme, C.C.","contributorId":37100,"corporation":false,"usgs":true,"family":"Vonnahme","given":"C.C.","email":"","affiliations":[],"preferred":false,"id":389704,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70020607,"text":"70020607 - 1998 - Noble gases, stable isotopes, and radiocarbon as tracers of flow in the Dakota aquifer, Colorado and Kansas","interactions":[],"lastModifiedDate":"2012-03-12T17:19:42","indexId":"70020607","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","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":"Noble gases, stable isotopes, and radiocarbon as tracers of flow in the Dakota aquifer, Colorado and Kansas","docAbstract":"A suite of chemical and isotope tracers (dissolved noble gases, stable isotopes of water, radiocarbon, and CI) have been analyzed along a flow path in the Dakota aquifer system to determine likely recharge sources, ground water residence times, and the extent of mixing between local and intermediate flow systems, presumably caused by large well screens. Three water types were distinguished with the tracers, each having a very different history. Two of the water types were found in south-eastern Colorado where the Dakota is poorly confined. The tracer data suggest that the first group recharged locally during the last few thousand years and the second group was composed of ground water that recharged earlier during a cooler climate, presumably during the last glacial period (LGP) and mixed aged water. The paleotemperature record archived in this groundwater system indicates that south-eastern Colorado was about 5??C cooler during the LGP than during the late Holocene. Similar temperature changes derived from dissolved noble gases in other aquifer systems have been reported earlier for the south-western United States. The third water type was located down gradient of the first two in the confined Dakota in western and central Kansas. Groundwater residence time of this water mass is on the order of 104-105 yrs and its recharge location is near the Colorado and Kansas border down gradient of the other water types. The study shows the importance of using multiple tracers when investigating ground water systems.A suite of chemical and isotope tracers (dissolved noble gases, stable isotopes of water, radiocarbon, and CL) were analyzed along a flow path in the Dakota aquifer system to determine likely recharge sources, ground water residence times, and the extent of mixing between local and intermediate flow systems. Three water types were distinguished with the tracers, each having a very different history. Two of the water types were located in south-eastern Colorado where the Dakota is poorly confined. The third water type was located down gradient of the first two in the confined Dakota in western and central Kansas.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier Sci B.V.","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/S0022-1694(98)00233-9","issn":"00221694","usgsCitation":"Clark, J., Davisson, M., Hudson, G., and Macfarlane, P.A., 1998, Noble gases, stable isotopes, and radiocarbon as tracers of flow in the Dakota aquifer, Colorado and Kansas: Journal of Hydrology, v. 211, no. 1-4, p. 151-167, https://doi.org/10.1016/S0022-1694(98)00233-9.","startPage":"151","endPage":"167","numberOfPages":"17","costCenters":[],"links":[{"id":487330,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://escholarship.org/uc/item/3wz4z3z0","text":"External Repository"},{"id":206840,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0022-1694(98)00233-9"},{"id":230913,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"211","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6724e4b0c8380cd731d5","contributors":{"authors":[{"text":"Clark, J.F.","contributorId":24124,"corporation":false,"usgs":true,"family":"Clark","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":386845,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Davisson, M.L.","contributorId":62277,"corporation":false,"usgs":true,"family":"Davisson","given":"M.L.","email":"","affiliations":[],"preferred":false,"id":386847,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hudson, G.B.","contributorId":28768,"corporation":false,"usgs":true,"family":"Hudson","given":"G.B.","email":"","affiliations":[],"preferred":false,"id":386846,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Macfarlane, P. A.","contributorId":14597,"corporation":false,"usgs":true,"family":"Macfarlane","given":"P.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":386844,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70021080,"text":"70021080 - 1998 - High-resolution Monte Carlo simulation of flow and conservative transport in heterogeneous porous media: 2. Transport results","interactions":[],"lastModifiedDate":"2018-03-16T09:52:49","indexId":"70021080","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"High-resolution Monte Carlo simulation of flow and conservative transport in heterogeneous porous media: 2. Transport results","docAbstract":"<p><span>In this, the second of two papers concerned with the use of numerical simulation to examine flow and transport parameters in heterogeneous porous media via Monte Carlo methods, results from the transport aspect of these simulations are reported on. Transport simulations contained herein assume a finite pulse input of conservative tracer, and the numerical technique endeavors to realistically simulate tracer spreading as the cloud moves through a heterogeneous medium. Medium heterogeneity is limited to the hydraulic conductivity field, and generation of this field assumes that the hydraulic-conductivity process is second-order stationary. Methods of estimating cloud moments, and the interpretation of these moments, are discussed. Techniques for estimation of large-time macrodispersivities from cloud second-moment data, and for the approximation of the standard errors associated with these macrodispersivities, are also presented. These moment and macrodispersivity estimation techniques were applied to tracer clouds resulting from transport scenarios generated by specific Monte Carlo simulations. Where feasible, moments and macrodispersivities resulting from the Monte Carlo simulations are compared with first- and second-order perturbation analyses. Some limited results concerning the possible ergodic nature of these simulations, and the presence of non-Gaussian behavior of the mean cloud, are reported on as well.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/97WR02711","usgsCitation":"Naff, R., Haley, D., and Sudicky, E., 1998, High-resolution Monte Carlo simulation of flow and conservative transport in heterogeneous porous media: 2. Transport results: Water Resources Research, v. 34, no. 4, p. 679-697, https://doi.org/10.1029/97WR02711.","productDescription":"19 p.","startPage":"679","endPage":"697","costCenters":[],"links":[{"id":229695,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a30fae4b0c8380cd5db16","contributors":{"authors":[{"text":"Naff, R.L.","contributorId":86349,"corporation":false,"usgs":true,"family":"Naff","given":"R.L.","affiliations":[],"preferred":false,"id":388586,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Haley, D.F.","contributorId":68480,"corporation":false,"usgs":true,"family":"Haley","given":"D.F.","email":"","affiliations":[],"preferred":false,"id":388585,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sudicky, E.A.","contributorId":67237,"corporation":false,"usgs":true,"family":"Sudicky","given":"E.A.","email":"","affiliations":[],"preferred":false,"id":388584,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
]}