{"pageNumber":"446","pageRowStart":"11125","pageSize":"25","recordCount":16446,"records":[{"id":30278,"text":"wri924050 - 1993 - Hydrology of the Hart Syncline area, northwestern Colorado","interactions":[],"lastModifiedDate":"2012-02-02T00:08:51","indexId":"wri924050","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","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":"92-4050","title":"Hydrology of the Hart Syncline area, northwestern Colorado","language":"ENGLISH","publisher":"U.S. Geological Survey :\r\nBooks and Open-File Reports Section [distributor],","doi":"10.3133/wri924050","usgsCitation":"Van Liew, W.P., and Robson, S.G., 1993, Hydrology of the Hart Syncline area, northwestern Colorado: U.S. Geological Survey Water-Resources Investigations Report 92-4050, vi, 97 p. :ill., maps (1 col.) ;28 cm., https://doi.org/10.3133/wri924050.","productDescription":"vi, 97 p. :ill., maps (1 col.) ;28 cm.","costCenters":[],"links":[{"id":122181,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1992/4050/report-thumb.jpg"},{"id":59061,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1992/4050/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":59062,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1992/4050/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a13e4b07f02db601e76","contributors":{"authors":[{"text":"Van Liew, W. P.","contributorId":78370,"corporation":false,"usgs":true,"family":"Van Liew","given":"W.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":202973,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Robson, S. G.","contributorId":97102,"corporation":false,"usgs":true,"family":"Robson","given":"S.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":202974,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1891,"text":"wsp2384 - 1993 - Effects of underground mining and mine collapse on the hydrology of selected basins in West Virginia","interactions":[],"lastModifiedDate":"2012-02-02T00:05:23","indexId":"wsp2384","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":341,"text":"Water Supply Paper","code":"WSP","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2384","title":"Effects of underground mining and mine collapse on the hydrology of selected basins in West Virginia","docAbstract":"The effects of underground mining and mine collapse on areal hydrology were determined at one site where the mined bed of coal lies above major streams and at two sites where the bed of coal lies below major streams. Subsidence cracks observed at land surface generally run parallel to predominant joint sets in the rocks. The mining and subsidence cracks increase hydraulic conductivity and interconnection of water-bearing rock units, which in turn cause increased infiltration of precipitation and surface water, decreased evapotranspiration, and higher base flows in some small streams. Water levels in observation wells in mined areas fluctuate as much as 100 ft annually. Both gaining and losing streams are found in mined areas. Mine pumpage and drainage can cause diversion of water underground from one basin to another. Areal and single-well aquifer tests indicated that near-surface rocks have higher transmissivity in a mine-subsided basin than in unmined basins. Increased infiltration and circulation through shallow subsurface rocks increase dissolved mineral loads in streams, as do treated and untreated contributions from mine pumpage and drainage. Abandoned and flooded underground mines make good reservoirs because of their increased transmissivity and storage. Subsidence cracks were not detectable by thermal imagery, but springs and seeps were detectable.","language":"ENGLISH","publisher":"U.S. G.P.O. ;\r\nU.S. Geological Survey, Map Distribution,","doi":"10.3133/wsp2384","usgsCitation":"Hobba, W.A., 1993, Effects of underground mining and mine collapse on the hydrology of selected basins in West Virginia: U.S. Geological Survey Water Supply Paper 2384, iv, 79 p. :ill. (some col.), maps (some col.) ;28 cm., https://doi.org/10.3133/wsp2384.","productDescription":"iv, 79 p. :ill. (some col.), maps (some col.) ;28 cm.","costCenters":[],"links":[{"id":138391,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wsp/2384/report-thumb.jpg"},{"id":27180,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wsp/2384/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a27e4b07f02db60ff39","contributors":{"authors":[{"text":"Hobba, William A. Jr.","contributorId":46076,"corporation":false,"usgs":true,"family":"Hobba","given":"William","suffix":"Jr.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":144320,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":30146,"text":"wri934149 - 1993 - Geohydrologic framework and hydrologic conditions in the Albuquerque Basin, central New Mexico","interactions":[],"lastModifiedDate":"2012-02-02T00:09:03","indexId":"wri934149","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","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":"93-4149","title":"Geohydrologic framework and hydrologic conditions in the Albuquerque Basin, central New Mexico","language":"ENGLISH","publisher":"U.S. Geological Survey, Water Resources Division ;\r\nCopies of this report can be purchased from: U.S. Geological Survey, Books and Open-File Reports, Federal Center,","doi":"10.3133/wri934149","usgsCitation":"Thorn, C.R., McAda, D.P., and Kernodle, J.M., 1993, Geohydrologic framework and hydrologic conditions in the Albuquerque Basin, central New Mexico: U.S. Geological Survey Water-Resources Investigations Report 93-4149, viii, 106 p. :ill., maps ;28 cm., https://doi.org/10.3133/wri934149.","productDescription":"viii, 106 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":119484,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1993/4149/report-thumb.jpg"},{"id":58958,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1993/4149/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":58959,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1993/4149/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1be4b07f02db6a8eb7","contributors":{"authors":[{"text":"Thorn, C. R.","contributorId":100879,"corporation":false,"usgs":true,"family":"Thorn","given":"C.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":202763,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McAda, D. P.","contributorId":93066,"corporation":false,"usgs":true,"family":"McAda","given":"D.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":202762,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kernodle, J. M.","contributorId":81139,"corporation":false,"usgs":true,"family":"Kernodle","given":"J.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":202761,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":4918,"text":"twri06A5 - 1993 - A modular finite-element model (MODFE) for areal and axisymmetric ground-water-flow problems, Part 3: Design philosophy and programming details","interactions":[],"lastModifiedDate":"2012-02-02T00:05:43","indexId":"twri06A5","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":336,"text":"Techniques of Water-Resources Investigations","code":"TWRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"06-A5","title":"A modular finite-element model (MODFE) for areal and axisymmetric ground-water-flow problems, Part 3: Design philosophy and programming details","docAbstract":"A MODular Finite-Element, digital-computer program (MODFE) was developed to simulate steady or unsteady-state, two-dimensional or axisymmetric ground-water-flow. The modular structure of MODFE places the computationally independent tasks that are performed routinely by digital-computer programs simulating ground-water flow into separate subroutines, which are executed from the main program by control statements. Each subroutine consists of complete sets of computations, or modules, which are identified by comment statements, and can be modified by the user without affecting unrelated computations elsewhere in the program. Simulation capabilities can be added or modified by either adding or modifying subroutines that perform specific computational tasks, and the modular-program structure allows the user to create versions of MODFE that contain only the simulation capabilities that pertain to the ground-water problem of interest. MODFE is written in a Fortran programming language that makes it virtually device independent and compatible with desk-top personal computers and large mainframes.\r\nMODFE uses computer storage and execution time efficiently by taking advantage of symmetry and sparseness within the coefficient matrices of the finite-element equations. Parts of the matrix coefficients are computed and stored as single-subscripted variables, which are assembled into a complete coefficient just prior to solution. Computer storage is reused during simulation to decrease storage requirements. Descriptions of subroutines that execute the computational steps of the modular-program structure are given in tables that cross reference the subroutines with particular versions of MODFE. Programming details of linear and nonlinear hydrologic terms are provided. Structure diagrams for the main programs show the order in which subroutines are executed for each version and illustrate some of the linear and nonlinear versions of MODFE that are possible. Computational aspects of changing stresses and boundary conditions with time and of mass-balance and error terms are given for each hydrologic feature. Program variables are listed and defined according to their occurrence in the main programs and in subroutines. Listings of the main programs and subroutines are given.","language":"ENGLISH","doi":"10.3133/twri06A5","usgsCitation":"Torak, L., 1993, A modular finite-element model (MODFE) for areal and axisymmetric ground-water-flow problems, Part 3: Design philosophy and programming details: U.S. Geological Survey Techniques of Water-Resources Investigations 06-A5, USGS-TWRI book 6, chap. A5. 243 p., https://doi.org/10.3133/twri06A5.","productDescription":"USGS-TWRI book 6, chap. A5. 243 p.","costCenters":[],"links":[{"id":139605,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":687,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/twri/twri6a5/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b23e4b07f02db6ade34","contributors":{"authors":[{"text":"Torak, L.J.","contributorId":87533,"corporation":false,"usgs":true,"family":"Torak","given":"L.J.","affiliations":[],"preferred":false,"id":150113,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":4917,"text":"twri06A3 - 1993 - A modular finite-element model (MODFE) for areal and axisymmetric ground-water-flow problems, Part 1: Model Description and User's Manual","interactions":[{"subject":{"id":21165,"text":"ofr90194 - 1992 - A modular finite-element model (MODFE) for areal and axisymmetric ground-water-flow problems; Part 1, Model description and user's manual","indexId":"ofr90194","publicationYear":"1992","noYear":false,"title":"A modular finite-element model (MODFE) for areal and axisymmetric ground-water-flow problems; Part 1, Model description and user's manual"},"predicate":"SUPERSEDED_BY","object":{"id":4917,"text":"twri06A3 - 1993 - A modular finite-element model (MODFE) for areal and axisymmetric ground-water-flow problems, Part 1: Model Description and User's Manual","indexId":"twri06A3","publicationYear":"1993","noYear":false,"title":"A modular finite-element model (MODFE) for areal and axisymmetric ground-water-flow problems, Part 1: Model Description and User's Manual"},"id":1}],"lastModifiedDate":"2012-02-02T00:05:43","indexId":"twri06A3","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":336,"text":"Techniques of Water-Resources Investigations","code":"TWRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"06-A3","title":"A modular finite-element model (MODFE) for areal and axisymmetric ground-water-flow problems, Part 1: Model Description and User's Manual","docAbstract":"A MODular, Finite-Element digital-computer program (MODFE) was developed to simulate steady or unsteady-state, two-dimensional or axisymmetric ground-water flow. Geometric- and hydrologic-aquifer characteristics in two spatial dimensions are represented by triangular finite elements and linear basis functions; one-dimensional finite elements and linear basis functions represent time. Finite-element matrix equations are solved by the direct symmetric-Doolittle method or the iterative modified, incomplete-Cholesky, conjugate-gradient method. Physical processes that can be represented by the model include (1) confined flow, unconfined flow (using the Dupuit approximation), or a combination of both; (2) leakage through either rigid or elastic confining beds; (3) specified recharge or discharge at points, along lines, and over areas; (4) flow across specified-flow, specified-head, or bead-dependent boundaries; (5) decrease of aquifer thickness to zero under extreme water-table decline and increase of aquifer thickness from zero as the water table rises; and (6) head-dependent fluxes from springs, drainage wells, leakage across riverbeds or confining beds combined with aquifer dewatering, and evapotranspiration.\r\nThe report describes procedures for applying MODFE to ground-water-flow problems, simulation capabilities, and data preparation. Guidelines for designing the finite-element mesh and for node numbering and determining band widths are given. Tables are given that reference simulation capabilities to specific versions of MODFE. Examples of data input and model output for different versions of MODFE are provided.","language":"ENGLISH","doi":"10.3133/twri06A3","usgsCitation":"Torak, L., 1993, A modular finite-element model (MODFE) for areal and axisymmetric ground-water-flow problems, Part 1: Model Description and User's Manual: U.S. Geological Survey Techniques of Water-Resources Investigations 06-A3, USGS-TWRI book 6, chap. A3. 136 p., https://doi.org/10.3133/twri06A3.","productDescription":"USGS-TWRI book 6, chap. A3. 136 p.","costCenters":[],"links":[{"id":139604,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":686,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/twri/twri6a3/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b23e4b07f02db6adeb2","contributors":{"authors":[{"text":"Torak, L.J.","contributorId":87533,"corporation":false,"usgs":true,"family":"Torak","given":"L.J.","affiliations":[],"preferred":false,"id":150112,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":29901,"text":"wri924100 - 1993 - Evaluation of statistical models to predict chemical quality of shallow ground water in the Pine Barrens of Suffolk County, Long Island, New York","interactions":[],"lastModifiedDate":"2023-01-10T20:19:18.239867","indexId":"wri924100","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","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":"92-4100","title":"Evaluation of statistical models to predict chemical quality of shallow ground water in the Pine Barrens of Suffolk County, Long Island, New York","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri924100","usgsCitation":"Stackelberg, P., and Siwiec, S.F., 1993, Evaluation of statistical models to predict chemical quality of shallow ground water in the Pine Barrens of Suffolk County, Long Island, New York: U.S. Geological Survey Water-Resources Investigations Report 92-4100, v, 26 p., https://doi.org/10.3133/wri924100.","productDescription":"v, 26 p.","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":411661,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_47664.htm","linkFileType":{"id":5,"text":"html"}},{"id":119467,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1992/4100/report-thumb.jpg"},{"id":58718,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1992/4100/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"New York","county":"Suffolk County","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -73,\n              40.8214\n            ],\n            [\n              -72.62,\n              40.8214\n            ],\n            [\n              -72.62,\n              40.9711\n            ],\n            [\n              -73,\n              40.9711\n            ],\n            [\n              -73,\n              40.8214\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afde4b07f02db696fa7","contributors":{"authors":[{"text":"Stackelberg, P. E.","contributorId":18390,"corporation":false,"usgs":true,"family":"Stackelberg","given":"P. E.","affiliations":[],"preferred":false,"id":202323,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Siwiec, S. F.","contributorId":85633,"corporation":false,"usgs":true,"family":"Siwiec","given":"S.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":202324,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":38459,"text":"pp1414B - 1993 - Regional aquifers in Kansas, Nebraska, and parts of Arkansas, Colorado, Missouri, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming: Geohydrologic framework","interactions":[],"lastModifiedDate":"2022-12-22T19:40:06.531886","indexId":"pp1414B","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","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":"1414","chapter":"B","title":"Regional aquifers in Kansas, Nebraska, and parts of Arkansas, Colorado, Missouri, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming: Geohydrologic framework","docAbstract":"<p>Regional aquifers are described within a 370,000-square-mile area extending from the foothills of the Rocky Mountains in Colorado to the Missouri and Mississippi Rivers in eastern Nebraska and Missouri, and from South Dakota to the Ouachita, Arbuckle, and Wichita Mountains of Arkansas and Oklahoma.</p>\n<p>The present geohydrologic framework of aquifers and confining units in this area is controlled by topography, geologic structures, and hydraulic properties. All of these characteristics are the result of past geologic and hydrologic processes. From the end of the Precambrian to Late Cambrian time, the area was above sea level, and an uneven erosional surface had developed on the fractured crystalline rocks. From Late Cambrian through Middle Ordovician time, a transgressive but cyclic sea covered the area. The oldest deposits were mostly permeable sand followed by slightly permeable calcareous mud consisting of aragonite and algal remains.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/pp1414B","usgsCitation":"Jorgensen, D.G., Helgesen, J.O., and Imes, J.L., 1993, Regional aquifers in Kansas, Nebraska, and parts of Arkansas, Colorado, Missouri, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming: Geohydrologic framework: U.S. Geological Survey Professional Paper 1414, Report: vii, 72 p.;  25 Plates: 36.00 × 35.00 inches or smaller, https://doi.org/10.3133/pp1414B.","productDescription":"Report: vii, 72 p.;  25 Plates: 36.00 × 35.00 inches or smaller","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":583,"text":"Texas Water Science 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,{"id":4484,"text":"cir1120C - 1993 - Occurrence and transport of agricultural chemicals in the Mississippi River basin, July through August 1993","interactions":[],"lastModifiedDate":"2019-12-08T14:21:10","indexId":"cir1120C","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":307,"text":"Circular","code":"CIR","onlineIssn":"2330-5703","printIssn":"1067-084X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"1120","chapter":"C","title":"Occurrence and transport of agricultural chemicals in the Mississippi River basin, July through August 1993","docAbstract":"Heavy rainfall and severe flooding in the upper Mississippi River Basin from mid-June through early August 1993 flushed extraordinarily large amounts of agricultural chemicals (herbicides and nitrate) into the Mississippi River, many of its tributaries, and, ultimately, the Gulf of Mexico. Even though extremely high streamflows were recorded during the flood in 1993, concentrations of herbicides, such as atrazine, alachlor, cyanazine, and metolachlor, were similar to the maximum concentrations measured during spring and summer 1991 and 1992. It was anticipated that the higher streamflows during the flood would dilute the concentrations of herbicides that are usually flushed into streams in late spring and summer. Instead, concentrations were similar to those measured during much lower flows, but the daily loads of herbicides transported in some reaches of the Mississippi River were higher than those measured in 1991 and 1992. The total atrazine load transported to the Gulf of Mexico from April through August 1993 (539,000 kilograms) was about 80 percent higher than that for the same period in 1991 and 235 percent higher than for the same period in 1992. The concentrations of atrazine and cyanazine in a few individual samples exceeded health-based limits for drinking water. However, because drinking-water regulations are based on the average of at least four quarterly samples, the annual average concentrations in the Mississippi River probably will not exceed these limits for 1993. Nitrate concentrations were similar to those measured during spring and summer 1991 and 1992. The loads of nitrate-nitrogen transported into the Gulf of Mexico during July and August 1993 were as much as 5,734 metric tons per day. These loads generally are similar to those measured in spring 1991 and 1992 but larger than those measured in summer 1991 and 1992. The total nitrate-nitrogen load transported to the Gulf of Mexico from April through August 1993 (827,000 metric tons) was about 37 percent larger than that for this same period in 1991 and 112 percent larger than that for the same period in 1992. The transport of extraordinarily high loads of nitrate and large amounts of fresh-water into the Gulf of Mexico during midsummer when primary production is highest could increase phytoplankton biomass and affect the gulf ecosystem along the Louisiana coast.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/cir1120C","usgsCitation":"Goolsby, D.A., Battaglin, W.A., and Thurman, E.M., 1993, Occurrence and transport of agricultural chemicals in the Mississippi River basin, July through August 1993: U.S. Geological Survey Circular 1120, v, 22 p., https://doi.org/10.3133/cir1120C.","productDescription":"v, 22 p.","costCenters":[{"id":478,"text":"North Dakota Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":34685,"text":"Dakota Water Science Center","active":true,"usgs":true}],"links":[{"id":124492,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/cir_1120_C.bmp"},{"id":529,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/circ1120-c","linkFileType":{"id":5,"text":"html"}}],"country":"United States","otherGeospatial":"Mississippi River","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -95.2294921875,\n              45.89000815866184\n            ],\n            [\n              -96.50390625,\n              46.07323062540835\n            ],\n            [\n              -95.185546875,\n              45.02695045318546\n            ],\n            [\n              -92.7685546875,\n              43.58039085560784\n            ],\n            [\n              -90.4833984375,\n              41.73852846935917\n            ],\n            [\n              -91.4501953125,\n              39.30029918615029\n            ],\n            [\n              -91.23046875,\n              35.137879119634185\n            ],\n            [\n              -92.0654296875,\n              31.541089879585808\n            ],\n            [\n              -91.7578125,\n              29.305561325527698\n            ],\n            [\n              -88.9892578125,\n              28.34306490482549\n            ],\n            [\n              -88.505859375,\n              30.29701788337205\n            ],\n            [\n              -90.65917968749999,\n              30.486550842588485\n            ],\n            [\n              -90.791015625,\n              32.13840869677249\n            ],\n            [\n              -89.82421875,\n              34.08906131584994\n            ],\n            [\n              -88.9453125,\n              35.96022296929667\n            ],\n            [\n              -88.9453125,\n              37.579412513438385\n            ],\n            [\n              -89.912109375,\n              39.70718665682654\n            ],\n            [\n              -89.384765625,\n              41.57436130598913\n            ],\n            [\n              -90.966796875,\n              44.05601169578525\n            ],\n            [\n              -95.2294921875,\n              45.89000815866184\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4af4e4b07f02db691e8c","contributors":{"authors":[{"text":"Goolsby, Donald A.","contributorId":46083,"corporation":false,"usgs":true,"family":"Goolsby","given":"Donald","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":149319,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Battaglin, William A. 0000-0001-7287-7096 wbattagl@usgs.gov","orcid":"https://orcid.org/0000-0001-7287-7096","contributorId":1527,"corporation":false,"usgs":true,"family":"Battaglin","given":"William","email":"wbattagl@usgs.gov","middleInitial":"A.","affiliations":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":149317,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Thurman, E. 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,{"id":1668,"text":"wsp2403 - 1993 - Low-flow characteristics of streams in North Carolina","interactions":[{"subject":{"id":45981,"text":"ofr90399 - 1991 - Low-flow characteristics of streams in North Carolina","indexId":"ofr90399","publicationYear":"1991","noYear":false,"title":"Low-flow characteristics of streams in North Carolina"},"predicate":"SUPERSEDED_BY","object":{"id":1668,"text":"wsp2403 - 1993 - Low-flow characteristics of streams in North Carolina","indexId":"wsp2403","publicationYear":"1993","noYear":false,"title":"Low-flow characteristics of streams in North Carolina"},"id":1}],"lastModifiedDate":"2017-02-01T11:11:28","indexId":"wsp2403","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":341,"text":"Water Supply Paper","code":"WSP","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2403","title":"Low-flow characteristics of streams in North Carolina","docAbstract":"Ten low-flow hydrologic areas were defined for North Carolina by relating topography, geology, mean annual runoff, and other features to low-flow frequency characteristics for 122 continuous-record streamflow stations and 396 partial-record streamflow stations. Regression equations relating low-flow characteristics to mean annual discharge were developed for five of the hydrologic areas covering 40% of the State, and statistical summaries of low-flow characteristics are given for all 10 hydrologic areas. Low-flow characteristics selected for analysis were the low-flow 7Q10, which is the annual minimum 7-day consecutive low flow, which on average will be exceeded in 9 out of 10 years--or stated another way, the probability is 10% that the 7-day consecutive low flow in any year will be less than the 7Q10; the low-flow W7Q10, which is similar to the low-flow 7Q10 except that it takes into account only the months from November through March; the low-flow 7Q2; and the low-flow 30Q2. Low-flow 7Q10's ranged from zero in some hydrologic areas in the Coastal Plain and Piedmont physiographic areas to a maximum value of 1.06 cu ft/sec/sq mi for a station in the western Piedmont and mountains physiographic area.","language":"ENGLISH","publisher":"U.S. G.P.O. ;\r\nU.S. Geological Survey, Map Distribution,","doi":"10.3133/wsp2403","usgsCitation":"Giese, G.L., and Mason, 1993, Low-flow characteristics of streams in North Carolina: U.S. Geological Survey Water Supply Paper 2403, iv, 29 p. :ill., maps (some col.) ;28 cm.; 2 plates in pocket, https://doi.org/10.3133/wsp2403.","productDescription":"iv, 29 p. :ill., maps (some col.) ;28 cm.; 2 plates in pocket","costCenters":[{"id":13634,"text":"South Atlantic Water Science 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,{"id":39622,"text":"pp1414E - 1993 - Hydrology of the Great Plains aquifer system in Nebraska, Colorado, Kansas, and adjacent areas","interactions":[],"lastModifiedDate":"2017-09-20T17:00:47","indexId":"pp1414E","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","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":"1414","chapter":"E","title":"Hydrology of the Great Plains aquifer system in Nebraska, Colorado, Kansas, and adjacent areas","language":"ENGLISH","doi":"10.3133/pp1414E","usgsCitation":"Helgesen, J.O., Leonard, R.B., and Wolf, R.J., 1993, Hydrology of the Great Plains aquifer system in Nebraska, Colorado, Kansas, and adjacent areas: U.S. Geological Survey Professional Paper 1414, p. E1-E80; 10 plates in separate case, https://doi.org/10.3133/pp1414E.","productDescription":"p. E1-E80; 10 plates in separate case","costCenters":[{"id":5050,"text":"WY-MT Water Science Center","active":true,"usgs":true}],"links":[{"id":67246,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1414e/plate-01.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":67247,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1414e/plate-02.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":67248,"rank":402,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1414e/plate-03.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":67249,"rank":403,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1414e/plate-04.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":67250,"rank":404,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1414e/plate-05.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":67251,"rank":405,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1414e/plate-06.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":67252,"rank":406,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1414e/plate-07.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":67253,"rank":407,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1414e/plate-08.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":67254,"rank":408,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1414e/plate-09.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":67255,"rank":409,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1414e/plate-10.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":67256,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/1414e/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":104645,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_4874.htm","linkFileType":{"id":5,"text":"html"},"description":"4874"},{"id":120406,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/pp/1414e/report-thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a13e4b07f02db601d72","contributors":{"authors":[{"text":"Helgesen, J. O.","contributorId":62600,"corporation":false,"usgs":true,"family":"Helgesen","given":"J.","email":"","middleInitial":"O.","affiliations":[],"preferred":false,"id":221825,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Leonard, R. B.","contributorId":32917,"corporation":false,"usgs":true,"family":"Leonard","given":"R.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":221824,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wolf, R. J.","contributorId":21518,"corporation":false,"usgs":true,"family":"Wolf","given":"R.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":221823,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":2319,"text":"wsp2386 - 1993 - Water and tritium movement through the unsaturated zone at a low-level radioactive-waste disposal site near Sheffield, Illinois, 1981-85","interactions":[{"subject":{"id":20141,"text":"ofr89271 - 1991 - Water and tritium movement through the unsaturated zone at a low-level radioactive-waste disposal site near Sheffield, Illinois, 1981-85","indexId":"ofr89271","publicationYear":"1991","noYear":false,"title":"Water and tritium movement through the unsaturated zone at a low-level radioactive-waste disposal site near Sheffield, Illinois, 1981-85"},"predicate":"SUPERSEDED_BY","object":{"id":2319,"text":"wsp2386 - 1993 - Water and tritium movement through the unsaturated zone at a low-level radioactive-waste disposal site near Sheffield, Illinois, 1981-85","indexId":"wsp2386","publicationYear":"1993","noYear":false,"title":"Water and tritium movement through the unsaturated zone at a low-level radioactive-waste disposal site near Sheffield, Illinois, 1981-85"},"id":1}],"lastModifiedDate":"2012-02-02T00:05:19","indexId":"wsp2386","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":341,"text":"Water Supply Paper","code":"WSP","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2386","title":"Water and tritium movement through the unsaturated zone at a low-level radioactive-waste disposal site near Sheffield, Illinois, 1981-85","docAbstract":"The movement of water and tritium through the unsaturated zone was studied at a low-level radioactive-waste disposal site near Sheffield, Bureau County, Illinois, from 1981 to 1985. Water and tritium movement occurred in an annual, seasonally timed cycle; recharge to the saturated zone generally occurred in the spring and early summer. Mean annual precipitation (1982-85) was 871 mm (millimeters); mean annual recharge to the disposal trenches (July 1982 through June 1984) was estimated to be 107 mm. Average annual tritium flux below the study trenches was estimated to be 3.4 mCi/yr (millicuries per year). Site geology, climate, and waste-disposal practices influenced the spatial and temporal variability of water and tritium movement. Of the components of the water budget, evapotranspiration contributed most to the temporal variability of water and tritium movement. \r\n\r\nDisposal trenches are constructed in complexly layered glacial and postglacial deposits that average 17 m (meters) in thickness and overlie a thick sequence of Pennsylvanian shale. The horizontal saturated hydraulic conductivity of the clayey-silt to sand-sized glacial and postglacial deposits ranges from 4.8x10 -1 to 3.4x10 4 mm/d (millimeters per day). \r\n\r\nA 120-m-long horizontal tunnel provided access for hydrologic measurements and collection of sediment and water samples from the unsaturated and saturated geologic deposits below four disposal trenches. Trench-cover and subtrench deposits were monitored with soil-moisture tensiometers, vacuum and gravity lysimeters, piezometers, and a nuclear soil-moisture gage. A cross-sectional, numerical ground-water-flow model was used to simulate water movement in the variably saturated geologic deposits in the tunnel area. Concurrent studies at the site provided water-budget data for estimating recharge to the disposal trenches. \r\n\r\nVertical water movement directly above the trenches was impeded by a zone of compaction within the clayey-silt trench covers. Water entered the trenches primarily at the trench edges where the compacted zone was absent and the cover was relatively thin. Collapse holes in the trench covers that resulted from inadequate compaction of wastes within the trenches provided additional preferential pathways for surface-water drainage into the trenches; drainage into one collapse hole during a rainstorm was estimated to be 1,700 L (liters). Till deposits near trench bases induced lateral water and tritium movement. Limited temporal variation in water movement and small flow gradients (relative to the till deposits) were detected in the unsaturated subtrench sand deposit; maximum gradients during the spring recharge period averaged 1.62 mm/mm (millimeter per millimeter). Time-of-travel of water moving from the trench covers to below the trenches was estimated to be as rapid as 41 days (assuming individual water molecules move this distance in one recharge cycle). \r\n\r\nTritium concentrations in water from the unsaturated zone ranged from 200 (background) to 10,000,000 pCi/L (picocuries per liter). Tritium concentrations generally were higher below trench bases (averaging 91,000 pCi/L) than below intertrench sediments (averaging 3,300 pCi/L), and in the subtrench Toulon Member of the Glasford Formation (sand) (averaging 110,000 pCi/L) than in the Hulick Till Member of the Glasford Formation (clayey silt) (averaging 59,000 pCi/L). Average subtrench tritium concentration increased from 28,000 to 100,000 pCi/L during the study period. Within the trench covers, there was a strong seasonal trend in tritium concentrations; the highest concentrations occurred in late summer when soil-moisture contents were at a minimum. Subtrench tritium movement occurred in association with the annual cycle of water movement, as well as independently of the cycle, in apparent response to continuous water movement through the subtrench sand deposits and to the deterioration of trench-waste containers. \r\n\r\nThe increase in concen","language":"ENGLISH","publisher":"U.S. G.P.O. ;\r\nU.S. Geological Survey, Book and Open-File Report Sales [distributor],","doi":"10.3133/wsp2386","usgsCitation":"Mills, P., and Healy, R.W., 1993, Water and tritium movement through the unsaturated zone at a low-level radioactive-waste disposal site near Sheffield, Illinois, 1981-85: U.S. Geological Survey Water Supply Paper 2386, vi, 72 p. :ill., maps ;28 cm., https://doi.org/10.3133/wsp2386.","productDescription":"vi, 72 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":137562,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wsp/2386/report-thumb.jpg"},{"id":28159,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wsp/2386/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a09e4b07f02db5fa705","contributors":{"authors":[{"text":"Mills, P.C. pcmills@usgs.gov","contributorId":3810,"corporation":false,"usgs":true,"family":"Mills","given":"P.C.","email":"pcmills@usgs.gov","affiliations":[{"id":344,"text":"Illinois Water Science Center","active":true,"usgs":true}],"preferred":true,"id":145008,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Healy, Richard W. 0000-0002-0224-1858 rwhealy@usgs.gov","orcid":"https://orcid.org/0000-0002-0224-1858","contributorId":658,"corporation":false,"usgs":true,"family":"Healy","given":"Richard","email":"rwhealy@usgs.gov","middleInitial":"W.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":145007,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":29429,"text":"wri934139 - 1993 - Hydrology of Little Rock Lake in Vilas County, north-central Wisconsin","interactions":[],"lastModifiedDate":"2015-10-26T13:06:09","indexId":"wri934139","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","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":"93-4139","title":"Hydrology of Little Rock Lake in Vilas County, north-central Wisconsin","docAbstract":"<p>Water budgets were developed for Little Rock Lake for October 1983 through September 1990 as part of a study to evaluate the chemical and biological effects of artificially acidifying one basin of the two-basin lake. The 17.9-hectare seepage lake is situated in 60- to 90-meter-thick, predominantly sand and gravel glacial deposits of Vilas County, north-central Wisconsin. Annual precipitation during the study varied from 647 to 926 mm (millimeters). Average annual precipitation during 1951-80, based on nearby National Weather Service stations, was 825 mm. Annual evaporation from the lake surface ranged from 495 to 648 mm. Total lake-stage fluctuation was 930 mm during the study. Lake volume at the maximum stage was 31 percent greater than at the minimum lake stage. Inflow to the lake was dominated by precipitation, which was about 99 percent of total inflow. Ground-water inflow to the lake was transient, occurring only intermittently during October 1983 through September 1986, and amounted to only about 1 percent of total inflow. No ground water flowed into the lake from October 1986 through September 1990. Evaporation accounted for about two-thirds of total outflow from the lake, and lake water discharging to the underlying aquifer accounted for the remainder. The average hydraulic residence times for the 7-year study period were 3.9, 3.3, and 4 years for the entire lake, the south basin, and the north basin, respectively; corresponding chemical residence times were 10.9, 9.3, and 10 years.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri934139","collaboration":"Prepared in cooperation with the Wisconsin Department of Natural Resources","usgsCitation":"Rose, W.J., 1993, Hydrology of Little Rock Lake in Vilas County, north-central Wisconsin: U.S. Geological Survey Water-Resources Investigations Report 93-4139, v, 22 p., https://doi.org/10.3133/wri934139.","productDescription":"v, 22 p.","numberOfPages":"27","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":119511,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1993/4139/report-thumb.jpg"},{"id":58277,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1993/4139/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Wisconsin","county":"Vilas County","otherGeospatial":"Little Rock Lake","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-88.9879,46.0971],[-88.9329,46.0746],[-88.9332,45.9822],[-89.0478,45.9822],[-89.0477,45.8953],[-89.1091,45.8973],[-89.1752,45.8993],[-89.1754,45.859],[-89.3008,45.8606],[-89.3007,45.9014],[-89.3628,45.8987],[-89.4256,45.8987],[-89.5498,45.8988],[-89.6741,45.8987],[-89.7571,45.8985],[-89.797,45.898],[-89.8199,45.8984],[-89.9212,45.8981],[-89.9846,45.8974],[-90.0428,45.8972],[-90.0442,45.9823],[-90.0134,45.9824],[-89.9853,45.9821],[-89.9289,45.9818],[-89.9282,46.0693],[-89.9288,46.1558],[-89.9287,46.2428],[-89.929,46.3],[-89.7599,46.268],[-89.7368,46.2636],[-89.5829,46.2347],[-89.5331,46.2252],[-89.5133,46.2215],[-89.4272,46.2048],[-89.3759,46.1949],[-89.2666,46.1737],[-89.2302,46.1662],[-89.0854,46.1365],[-88.9879,46.0971]]]},\"properties\":{\"name\":\"Vilas\",\"state\":\"WI\"}}]}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a17e4b07f02db6048af","contributors":{"authors":[{"text":"Rose, W. J.","contributorId":14433,"corporation":false,"usgs":true,"family":"Rose","given":"W.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":201514,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":25584,"text":"wri934047 - 1993 - Hydrogeology, simulated ground-water flow, and ground-water quality, Wright-Patterson Air Force Base, Ohio","interactions":[],"lastModifiedDate":"2012-02-02T00:08:29","indexId":"wri934047","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","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":"93-4047","title":"Hydrogeology, simulated ground-water flow, and ground-water quality, Wright-Patterson Air Force Base, Ohio","docAbstract":"Ground water is the primary source of water in the Wright-Patterson Air Force Base area. The aquifer consists of glacial sands and gravels that fill a buried bedrock-valley system. Consolidated rocks in the area consist of poorly permeable Ordovician shale of the Richmondian stage, in the upland areas, the Brassfield Limestone of Silurian age. The valleys are filled with glacial sediments of Wisconsinan age consisting of clay-rich tills and coarse-grained outwash deposits. Estimates of hydraulic conductivity of the shales based on results of displacement/recovery tests range from 0.0016 to 12 feet per day; estimates for the glacial sediments range from less than 1 foot per day to more than 1,000 feet per day.\r\n\r\nGround water flow from the uplands towards the valleys and the major rivers in the region, the Great Miami and the Mad Rivers. Hydraulic-head data indicate that ground water flows between the bedrock and unconsolidated deposits. Data from a gain/loss study of the Mad River System and hydrographs from nearby wells reveal that the reach of the river next to Wright-Patterson Air Force Base is a ground-water discharge area.\r\n\r\nA steady-state, three-dimensional ground-water-flow model was developed to simulate ground-water flow in the region. The model contains three layers and encompasses about 100 square miles centered on Wright-Patterson Air Force Base. Ground water enters the modeled area primarily by river leakage and underflow at the model boundary. Ground water exits the modeled area primarily by flow through the valleys at the model boundaries and through production wells. A model sensitivity analysis involving systematic changes in values of hydrologic parameters in the model indicates that the model is most sensitive to decreases in riverbed conductance and vertical conductance between the upper two layers. The analysis also indicates that the contribution of water to the buried-valley aquifer from the bedrock that forms the valley walls is about 2 to 4 percent of the total ground-water flow in the study area.\r\n\r\nGround waters in the vicinity of Wright-Patterson Air Force Base can be classified into two compositional groups on the basis of their chemical composition: calcium magnesium bicarbonate-type and sodium chloride-type waters. Calcium magnesium bicarbonate-type waters are found in the glacial deposits and the Brassfield Limestone, whereas the sodium chloride waters are exclusively associated with the shales. Equilibrium speciation calculations indicate that ground water of the glacial drift aquifer is in equilibrium with calcite, dolomite, and chalcedony, but is undersaturated with respect to gypsum and fluorite. Waters from the shales are slightly supersaturated with respect to calcite, dolomite, and siderite but are undersaturated with respect to chalcedony. Simple-mass balance calculations treating boron as a conservative species indicate that little (< 5 percent) or no recharge from the shales to the glacial drift aquifer takes place.\r\n\r\nData on the stable isotopes of oxygen and hydrogen indicate a meteoric origin for all ground water beneath Wright-Patterson Air Force Base, but the data were inconclusive with respect to identification of distinct isotopic differences between water collected from the glacial drift and bedrock aquifers. Tritium concentrations used to distinguish waters having a pre-and post-1953 recharge component indicate that most water entered the glacial drift aquifer after 1953. This finding indicates that recharge from shallow to deep parts (greater than 150 feet) of the aquifer takes place over time intervals of a few years or decades. However, the fact that some deep parts of the glacial aquifer did not contain measurable tritium indicates that ground-water flow from recharge zones to these parts of the aquifer takes decades or longer.","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBooks and Open-File Reports Section [distributor],","doi":"10.3133/wri934047","usgsCitation":"Dumouchelle, D., Schalk, C.W., Rowe, G., and De Roche, J., 1993, Hydrogeology, simulated ground-water flow, and ground-water quality, Wright-Patterson Air Force Base, Ohio: U.S. Geological Survey Water-Resources Investigations Report 93-4047, viii, 152 p. :ill. (some col.) ;28 cm., https://doi.org/10.3133/wri934047.","productDescription":"viii, 152 p. :ill. (some col.) ;28 cm.","costCenters":[],"links":[{"id":124919,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1993/4047/report-thumb.jpg"},{"id":54318,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1993/4047/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a2de4b07f02db614a47","contributors":{"authors":[{"text":"Dumouchelle, D.H.","contributorId":83144,"corporation":false,"usgs":true,"family":"Dumouchelle","given":"D.H.","affiliations":[],"preferred":false,"id":194293,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schalk, C. W.","contributorId":64286,"corporation":false,"usgs":true,"family":"Schalk","given":"C.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":194291,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rowe, G.L.","contributorId":23978,"corporation":false,"usgs":true,"family":"Rowe","given":"G.L.","affiliations":[],"preferred":false,"id":194290,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"De Roche, J.T.","contributorId":66691,"corporation":false,"usgs":true,"family":"De Roche","given":"J.T.","affiliations":[],"preferred":false,"id":194292,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":25608,"text":"wri934033 - 1993 - Hydrology, vegetation, and soils of four north Florida River flood plains with an evaluation of state and federal wetland determinations","interactions":[],"lastModifiedDate":"2012-02-02T00:08:24","indexId":"wri934033","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","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":"93-4033","title":"Hydrology, vegetation, and soils of four north Florida River flood plains with an evaluation of state and federal wetland determinations","docAbstract":"A study of hydrologic conditions, vegetation, and soils was made in wetland forests of four north Florida streams from 1987 to 1990. The study was conducted by the U.S. Geological Survey in cooperation with the Florida Department of Environmental Regulation to support State and Federal efforts to improve wetland delineation methodology in flood plains. \r\n\r\nPlant communities and soils were described and related to topographic position and long-term hydrologic conditions at 10 study plots located on 4 streams. Detailed appendixes give average duration, frequency, and depth of flooding; canopy, subcanopy, and ground-cover vegetation; and taxonomic classification, series, and profile descriptions of soils for each plot. Topographic relief, range in stage, and depth of flooding were greatest on the alluvial flood plain of the Ochlockonee River, the largest of the four streams. Soils were silty in the lower elevations of the flood plain, and tree communities were distinctly different in each topographic zone. The Aucilla River flood plain was dominated by levees and terraces with very few depressions or low backwater areas. Oaks dominated the canopy of both lower and upper terraces of the Aucilla flood plain. Telogia Creek is a blackwater stream that is a major tributary of the Ochlockonee River. Its low, wet flood plain was dominated by Wyssa ogeche (Ogeechee tupelo) trees, had soils with mucky horizons, and was inundated by frequent floods of very short duration. The St. Marks River, a spring-fed stream with high base flow, had the least topographic relief and lowest range in stage of the four streams. St. Marks soils had a higher clay content than the other streams, and limestone bedrock was relatively close to the surface. \r\n\r\nWetland determinations of the study plots based on State and Federal regulatory criteria were evaluated. Most State and Federal wetland determinations are based primarily on vegetation and soil characteristics because hydrologic records are usually not available. In this study, plots were located near long-term gaging stations, thus wetland determinations based on plant and soil characteristics could be evaluated at sites where long-term hydrologic conditions were known. Inconsistencies among hydrology, vegetation, and soil determinations were greatest on levee communities of the Ochlockonee and Aucilla River flood plains. Duration of average annual longest flood was almost 2 weeks for both plots. The wetland species list currently used (1991) by the State lacks many ground-cover species common to forested flood plains of north Florida rivers. There were 102 ground-cover species considered upland plants by the State that were present on the nine annually flooded plots of this study. Among them were 34 species that grew in areas continuously flooded for an average of 5 weeks or more each year. Common flood-plain species considered upland plants by the State were: Hypoxis leptocarpa (yellow star-grass), and two woody vines, Brunnichia ovata (ladies' eardrops) and Campsis radicans (trumpet-creeper), which were common in areas flooded continuously for 6 to 9 weeks a year; Sebastiania fruticosa (Sebastian-bush), Chasmanthium laxum (spikegrass), and Panicum dichotomum (panic grass), which typically grew in areas flooded an average of 2 to 3 weeks or more per year; Vitis rotundifolia (muscadine) and Toxicodendron radicans (poison-ivy), usually occurring in areas flooded an average of 1 to 2 weeks a year; and Quercus virginiana (live oak) present most often in areas flooded approximately 1 week a year. \r\n\r\nFederal wetland regulations (1989) limited wetland jurisdiction to only those areas that are inundated or saturated during the growing season. However, year-round hydrologic records were chosen in this report to describe the influence of hydrology on vegetation, because saturation, inundation, or flowing water can have a variety of both beneficial and adverse effects on flood-plain vegetation at any time of the ","language":"ENGLISH","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey ;\r\nU.S.G.S. Earth Science Information Center, Open-File Reports Section [distributor],","doi":"10.3133/wri934033","usgsCitation":"Light, H., Darst, M.R., MacLaughlin, M., and Sprecher, S., 1993, Hydrology, vegetation, and soils of four north Florida River flood plains with an evaluation of state and federal wetland determinations: U.S. Geological Survey Water-Resources Investigations Report 93-4033, x, 94 p. :ill., maps ;28 cm., https://doi.org/10.3133/wri934033.","productDescription":"x, 94 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":1933,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wri934033","linkFileType":{"id":5,"text":"html"}},{"id":118762,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/wri_93_4033.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac9e4b07f02db67c954","contributors":{"authors":[{"text":"Light, H.M.","contributorId":43389,"corporation":false,"usgs":true,"family":"Light","given":"H.M.","email":"","affiliations":[],"preferred":false,"id":194391,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Darst, M. R.","contributorId":75187,"corporation":false,"usgs":true,"family":"Darst","given":"M.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":194392,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"MacLaughlin, M.T.","contributorId":17651,"corporation":false,"usgs":true,"family":"MacLaughlin","given":"M.T.","email":"","affiliations":[],"preferred":false,"id":194389,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sprecher, S.W.","contributorId":19911,"corporation":false,"usgs":true,"family":"Sprecher","given":"S.W.","email":"","affiliations":[],"preferred":false,"id":194390,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":1268,"text":"wsp2397 - 1993 - Delineation of recharge areas for selected wells in the St. Peter-Prairie du Chien-Jordan aquifer, Rochester, Minnesota","interactions":[{"subject":{"id":18642,"text":"ofr90397 - 1991 - Delineation of recharge areas for selected wells in the St. Peter-Prairie du Chien-Jordan Aquifer, Rochester, Minnesota","indexId":"ofr90397","publicationYear":"1991","noYear":false,"title":"Delineation of recharge areas for selected wells in the St. Peter-Prairie du Chien-Jordan Aquifer, Rochester, Minnesota"},"predicate":"SUPERSEDED_BY","object":{"id":1268,"text":"wsp2397 - 1993 - Delineation of recharge areas for selected wells in the St. Peter-Prairie du Chien-Jordan aquifer, Rochester, Minnesota","indexId":"wsp2397","publicationYear":"1993","noYear":false,"title":"Delineation of recharge areas for selected wells in the St. Peter-Prairie du Chien-Jordan aquifer, Rochester, Minnesota"},"id":1}],"lastModifiedDate":"2024-01-11T00:00:40.643267","indexId":"wsp2397","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":341,"text":"Water Supply Paper","code":"WSP","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2397","title":"Delineation of recharge areas for selected wells in the St. Peter-Prairie du Chien-Jordan aquifer, Rochester, Minnesota","docAbstract":"<p>Accurate delineation of recharge areas for wells is an important requisite to protecting ground-water quality. Zones of transport and zones of contribution are two types of recharge areas that can be delineated. Analytical-calculation, numerical-modeling, and hydrogeologic-mapping methods were used to delineate recharge areas for two high-capacity wells (greater than about 200 gallons per minute discharge) completed in a karstic aquifer in the city of Rochester, in southeastern Minnesota. One well is less than 1,000 feet from a river in an area where the aquifer is unconfined, whereas the other well is more than 2,000 feet from a stream in an area where a bedrock confining unit is present.</p>\n<p>Ground-water travel times from points along the top of the aquifer to a pumped well are identified by use of a constructed map showing lines of equal advective travel time. A zone of transport, therefore, is defined by the area bounded by lines of equal travel time. Zones of transport are delineated by analytical models (calculations) and by numerical models that account for hydrologic factors. Analytical models that were used include fixed-radius (Theis drawdown, Theis time-of-travel, and volumetric equation) and variable shape. Numerical modeling was done with the U.S. Geological Survey three-dimensional ground-water-flow model MODFLOW and particle-tracking code MODPATH. The zone-of-transport areas for each of the two wells calculated by the various analytical models were very similar. The Theis-drawdown method yielded results that compared least favorably with results from the other analytical methods. The zone-of-transport areas computed by use of the numerical model were generally larger than areas computed by use of analytical models.</p>\n<p>Hydrogeologic mapping and numerical modeling were used to delineate zones of contribution to wells, defined as all parts of a ground-water-flow system that could supply water to a well. The zones of contribution delineated by use of numerical modeling have similar orientation (parallel to regional flow directions) but significantly different areas than the zones of contribution delineated by use of hydrogeologic mapping. Differences in computed areas of recharge are attributed to the capability of the numerical model to more accurately represent (1) the three-dimensional flow system, (2) hydrologic boundaries such as streams, (3) variable recharge, and (4) the influence of nearby pumped wells, compared to the analytical models.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Washington, D.C.","doi":"10.3133/wsp2397","collaboration":"Prepared in cooperation with the U.S. Environmental Protection Agency","usgsCitation":"Delin, G., and Almendinger, J.E., 1993, Delineation of recharge areas for selected wells in the St. Peter-Prairie du Chien-Jordan aquifer, Rochester, Minnesota: U.S. Geological Survey Water Supply Paper 2397, v, 39 p., https://doi.org/10.3133/wsp2397.","productDescription":"v, 39 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":392,"text":"Minnesota Water Science Center","active":true,"usgs":true}],"links":[{"id":424298,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_25297.htm","linkFileType":{"id":5,"text":"html"}},{"id":137455,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wsp/2397/report-thumb.jpg"},{"id":26223,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wsp/2397/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Minnesota","city":"Rochester","otherGeospatial":"St. Peter-Prairie du Chien-Jordan aquifer","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -92.74658203125,\n              43.898881944430414\n            ],\n            [\n              -92.74658203125,\n              44.11815563115412\n            ],\n            [\n              -92.35519409179688,\n              44.11815563115412\n            ],\n            [\n              -92.35519409179688,\n              43.898881944430414\n            ],\n            [\n              -92.74658203125,\n              43.898881944430414\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ab9e4b07f02db6712f6","contributors":{"authors":[{"text":"Delin, G. N.","contributorId":12834,"corporation":false,"usgs":true,"family":"Delin","given":"G. N.","affiliations":[],"preferred":false,"id":143469,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Almendinger, James Edward","contributorId":43330,"corporation":false,"usgs":true,"family":"Almendinger","given":"James","email":"","middleInitial":"Edward","affiliations":[],"preferred":false,"id":143470,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":29181,"text":"wri934051 - 1993 - Hydrology of two tidal marshes in North Carolina where open-marsh water management modifications have been implemented","interactions":[],"lastModifiedDate":"2025-01-13T19:36:46.962678","indexId":"wri934051","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","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":"93-4051","title":"Hydrology of two tidal marshes in North Carolina where open-marsh water management modifications have been implemented","docAbstract":"In 1988 and 1989, open-marsh water management modifications were implemented at tidal marshes near West Onslow Beach and Hobucken, North Carolina, as part of a pilot program to evaluate the effectiveness of ditching techniques as a mosquito-control method in open marshes. In 1984, before implementation of the modifications, a study was initiated to allow definition of the effects of those modifications on the hydrology of the marshes. Water levels in canals near the West Onslow Beach study marsh are controlled by periodic, gravitational tides. Daily maximum tides exceeded the elevation of the upper marsh surface 30% of the time before and 18% of the time after open-marsh water management. Daily maximum tides at this marsh exceeded the upper marsh surface 34% of the time before and 24% of the time after open-marsh water management. Variation in tidal conditions resulted in varying numbers and duration of floods at the study marshes. Duration analyses indicated relations between tide levels and marsh surface-water levels were unchanged after modifications. Groundwater movement through the marshes varies seasonally and is primarily vertical. Withdrawals are by evapotranspiration and recharge is by infiltration. During nongrowing months saturated conditions prevail. Groundwater flow to the marsh interior from the surrounding tidal canals was not detected during these declines. Changes in the natural variation in withdrawals from and recharge to groundwater were not indicated by the data collected during this study. Water levels in canals adjacent to the Hobucken study marsh are primarily controlled by wind-driven tides.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri934051","usgsCitation":"Pope, B., 1993, Hydrology of two tidal marshes in North Carolina where open-marsh water management modifications have been implemented: U.S. Geological Survey Water-Resources Investigations Report 93-4051, v, 41 p., https://doi.org/10.3133/wri934051.","productDescription":"v, 41 p.","costCenters":[{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"links":[{"id":124776,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1993/4051/report-thumb.jpg"},{"id":58050,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1993/4051/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":466141,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_47776.htm","text":"Hobucken marsh","linkFileType":{"id":5,"text":"html"}},{"id":466142,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_47777.htm","text":"Onslow Beach marsh","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"North Carolina","city":"Hobucken","otherGeospatial":"West Onslow Beach","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -76.54615625888958,\n              35.2444\n            ],\n            [\n              -76.54615625888958,\n              35.233\n            ],\n            [\n              -76.52548712233958,\n              35.233\n            ],\n            [\n              -76.52548712233958,\n              35.2444\n            ],\n            [\n              -76.54615625888958,\n              35.2444\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    },\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -77.5333,\n              34.4542\n            ],\n            [\n              -77.5333,\n              34.4417\n            ],\n            [\n              -77.5167,\n              34.4417\n            ],\n            [\n              -77.5167,\n              34.4542\n            ],\n            [\n              -77.5333,\n              34.4542\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e478fe4b07f02db48a38e","contributors":{"authors":[{"text":"Pope, B.F.","contributorId":10062,"corporation":false,"usgs":true,"family":"Pope","given":"B.F.","email":"","affiliations":[],"preferred":false,"id":201096,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":49683,"text":"ofr93626 - 1993 - State water-data reports; hydrologic records of the United States water years 1990, 1991, and 1992","interactions":[{"subject":{"id":49683,"text":"ofr93626 - 1993 - State water-data reports; hydrologic records of the United States water years 1990, 1991, and 1992","indexId":"ofr93626","publicationYear":"1993","noYear":false,"title":"State water-data reports; hydrologic records of the United States water years 1990, 1991, and 1992"},"predicate":"SUPERSEDED_BY","object":{"id":31797,"text":"ofr94467 - 1994 - State water-data reports; hydrologic records of the United States water years 1990, 1991, 1992, and 1993","indexId":"ofr94467","publicationYear":"1994","noYear":false,"title":"State water-data reports; hydrologic records of the United States water years 1990, 1991, 1992, and 1993"},"id":1}],"supersededBy":{"id":31797,"text":"ofr94467 - 1994 - State water-data reports; hydrologic records of the United States water years 1990, 1991, 1992, and 1993","indexId":"ofr94467","publicationYear":"1994","noYear":false,"title":"State water-data reports; hydrologic records of the United States water years 1990, 1991, 1992, and 1993"},"lastModifiedDate":"2012-02-02T00:11:16","indexId":"ofr93626","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","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":"93-626","title":"State water-data reports; hydrologic records of the United States water years 1990, 1991, and 1992","language":"ENGLISH","doi":"10.3133/ofr93626","usgsCitation":"Alt, D., 1993, State water-data reports; hydrologic records of the United States water years 1990, 1991, and 1992: U.S. Geological Survey Open-File Report 93-626, One CD-ROM, https://doi.org/10.3133/ofr93626.","productDescription":"One CD-ROM","costCenters":[],"links":[{"id":176741,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e0e4b07f02db5e3edf","contributors":{"authors":[{"text":"Alt, D.F.","contributorId":17653,"corporation":false,"usgs":true,"family":"Alt","given":"D.F.","email":"","affiliations":[],"preferred":false,"id":240103,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":29145,"text":"wri934019 - 1993 - Geohydrology, water quality, and estimation of ground-water recharge in San Francisco, California, 1987-92","interactions":[],"lastModifiedDate":"2012-02-02T00:08:50","indexId":"wri934019","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","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":"93-4019","title":"Geohydrology, water quality, and estimation of ground-water recharge in San Francisco, California, 1987-92","docAbstract":"The city of San Francisco is considering further development of local groundwater resources as a supplemental source of water for potable or nonpotable use. By the year 2010, further water demand is projected to exceed the delivery capacity of the existing supply system, which is fed by surface-water sources; thus supplies are susceptible to drought conditions and damage to conveyance lines by earthquakes. The primary purpose of this study is to describe local geohydrology and water quality and to estimate groundwater recharge in the area of the city of San Francisco. Seven groundwater basins were identified in San Francisco on the basis of geologic and geophysical data. Basins on the east side of the city are relatively thin and contain a greater percentage of fine-grained sediments than those on the west side. The relatively small capacity of the basins and greater potential for contamination from sewer sources may limit the potential for groundwater development on the east side. Basins on the west side of the city have a relatively large capacity and low density sewer network. Water-level data indicate that the southern part of the largest basin on the west side of the city (Westside basin) probably cannot accommodate additional groundwater development without adversely affecting water levels and water quality in Lake Merced; however, the remainder of the basin, which is largely undeveloped, could be developed further. A hydrologic routing model was developed for estimating groundwater recharge throughout San Francisco. The model takes into account climatic factors, land and water use, irrigation, leakage from underground pipes, rainfall runoff, evapotranspiration, and other factors associated with an urban environment. Results indicate that area recharge rates for water years 1987-88 for the 7 groundwater basins ranged from 0.32 to 0.78 feet per year. Recharge for the Westside basin was estimated at 0.51 feet per year. Average annual groundwater recharge represents the maximum annual long-term yield of the basin. Attainable yield may be less than the volume of groundwater recharge because interception of all discharge from the basin may not be feasible without inducing seawater intrusion or causing other undesirable effects.","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBooks and Open-File Reports Section [distributor],","doi":"10.3133/wri934019","usgsCitation":"Phillips, S., Hamlin, S.N., and Yates, E., 1993, Geohydrology, water quality, and estimation of ground-water recharge in San Francisco, California, 1987-92: U.S. Geological Survey Water-Resources Investigations Report 93-4019, vi, 69 p. :ill., maps ;28 cm., https://doi.org/10.3133/wri934019.","productDescription":"vi, 69 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":123737,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1993/4019/report-thumb.jpg"},{"id":58016,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1993/4019/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":58017,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1993/4019/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":58018,"rank":402,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1993/4019/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":58019,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1993/4019/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad7e4b07f02db684479","contributors":{"authors":[{"text":"Phillips, S.P.","contributorId":38172,"corporation":false,"usgs":true,"family":"Phillips","given":"S.P.","email":"","affiliations":[],"preferred":false,"id":201015,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hamlin, S. N.","contributorId":46560,"corporation":false,"usgs":true,"family":"Hamlin","given":"S.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":201016,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Yates, E.B.","contributorId":77973,"corporation":false,"usgs":true,"family":"Yates","given":"E.B.","email":"","affiliations":[],"preferred":false,"id":201017,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":26332,"text":"wri924162 - 1993 - Hydrology of valley fill and potential for additional ground-water withdrawals along the north flank of the Little Rocky Mountains, Fort Belknap Indian Reservation, north-central Montana","interactions":[],"lastModifiedDate":"2012-02-02T00:08:27","indexId":"wri924162","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","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":"92-4162","title":"Hydrology of valley fill and potential for additional ground-water withdrawals along the north flank of the Little Rocky Mountains, Fort Belknap Indian Reservation, north-central Montana","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBooks and Open-File Reports Section [distributor],","doi":"10.3133/wri924162","usgsCitation":"Briar, D., Christensen, P., and Oellermann, D., 1993, Hydrology of valley fill and potential for additional ground-water withdrawals along the north flank of the Little Rocky Mountains, Fort Belknap Indian Reservation, north-central Montana: U.S. Geological Survey Water-Resources Investigations Report 92-4162, v, 86 p. :ill., maps (some col.) ;28 cm., https://doi.org/10.3133/wri924162.","productDescription":"v, 86 p. :ill., maps (some col.) ;28 cm.","costCenters":[],"links":[{"id":119062,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1992/4162/report-thumb.jpg"},{"id":55130,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1992/4162/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":55131,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1992/4162/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":55132,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1992/4162/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ee4b07f02db5fdafd","contributors":{"authors":[{"text":"Briar, D.W.","contributorId":58287,"corporation":false,"usgs":true,"family":"Briar","given":"D.W.","affiliations":[],"preferred":false,"id":196197,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Christensen, P.K.","contributorId":82354,"corporation":false,"usgs":true,"family":"Christensen","given":"P.K.","email":"","affiliations":[],"preferred":false,"id":196198,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Oellermann, D.J.","contributorId":54458,"corporation":false,"usgs":true,"family":"Oellermann","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":196196,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":26909,"text":"wri934062 - 1993 - Estimating design-flood discharges for streams in Iowa using drainage-basin and channel-geometry characteristics","interactions":[],"lastModifiedDate":"2016-03-14T10:46:22","indexId":"wri934062","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","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":"93-4062","title":"Estimating design-flood discharges for streams in Iowa using drainage-basin and channel-geometry characteristics","docAbstract":"<p>Drainage-basin and channel-geometry multiple-regression equations are presented for estimating design-flood discharges having recurrence intervals of 2, 5, 10, 25, 50, and 100 years at stream sites on rural, unregulated streams in Iowa. Design-flood discharge estimates determined by Pearson Type-Ill analyses using data collected through the 1990 water year are reported for the 188 streamflow-gaging stations used in either the drainage-basin or channel-geometry regression analyses. Ordinary least-squares multiple-regression techniques were used to identify selected drainage-basin and channel-geometry characteristics and to delineate two channel-geometry regions. Weighted least-squares multiple-regression techniques, which account for differences in the variance of flows at different gaging stations and for variable lengths in station records, were used to estimate the regression parameters.</p>\n<p>Statewide drainage-basin equations were developed from analyses of 164 streamflow-gaging stations. Drainage-basin characteristics were quantified using a geographic-informationsystem procedure to process topographic maps and digital cartographic data. The significant characteristics identified for the drainage-basin ^equations included contributing drainage area, relative relief, drainage frequency, and 2-year, 24-hour precipitation intensity. The average standard errors of prediction for the drainagebasin equations ranged from 38.6 to 50.2 percent. The geographic-information-system procedure expanded the capability to quantitatively relate drainage-basin characteristics to the magnitude and frequency of floods for stream sites in Iowa and provides a flood-estimation method that is independent of hydrologic regionalization.</p>\n<p>Statewide and regional channel-geometry regression equations were developed from analyses of 157 streamflow-gaging stations. Channel-geometry characteristics were measured onsite and on topographic maps. Statewide and regional channel-geometry regression equations that are dependent on whether a stream has been channelized were developed on the basis of bankfull and active-channel characteristics. The significant channel-geometry characteristics identified for the statewide and regional regression equations included bankfull width and bankfull depth for natural channels unaffected by channelization, and active-channel width for stabilized channels affected by channelization. The average standard errors of prediction ranged from 41.0 to 68.4 percent for the statewide channel-geometry equations and from 30.3 to 70.0 percent for the regional channel-geometry equations.</p>\n<p>Procedures provided for applying the drainage-basin and channel-geometry regression equations depend on whether the design-flood discharge estimate is for a site on an ungaged stream, an ungaged site on a gaged stream, or a gaged site. When both a drainage-basin and a channel-geometry regression-equation estimate are available for a stream site, a procedure is presented for determining a weighted average of the two flood estimates. The drainage-basin regression equations are applicable to unregulated rural drainage areas less than 1,060 square miles, and the channel-geometry regression equations are applicable to unregulated rural streams in Iowa with stabilized channels.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Iowa City, IA","doi":"10.3133/wri934062","collaboration":"Prepared in cooperation with the Iowa Highway Research Board and the Highway Division of the Iowa Department of Transportation (Iowa DOT Research Project HR-322)","usgsCitation":"Eash, D.A., 1993, Estimating design-flood discharges for streams in Iowa using drainage-basin and channel-geometry characteristics: U.S. Geological Survey Water-Resources Investigations Report 93-4062, vi, 96 p.: ill., maps; 28 cm., https://doi.org/10.3133/wri934062.","productDescription":"vi, 96 p.: ill., maps; 28 cm.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":351,"text":"Iowa Water Science Center","active":true,"usgs":true}],"links":[{"id":126645,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1993/4062/report-thumb.jpg"},{"id":55787,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1993/4062/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United 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A.","contributorId":60237,"corporation":false,"usgs":true,"family":"Eash","given":"D.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":197228,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":27085,"text":"wri904126 - 1993 - Hydrology and water quality of Powers Lake, southeastern Wisconsin","interactions":[],"lastModifiedDate":"2015-10-26T14:15:36","indexId":"wri904126","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","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":"90-4126","title":"Hydrology and water quality of Powers Lake, southeastern Wisconsin","docAbstract":"<p>This report describes the hydrology and water quality of Powers Lake, a recreational lake in a densely populated area of southeastern Wisconsin, from October 16, 1986 - October 15, 1987.</p>\n<p>The hydrologic budget for the study period showed that direct precipitation on the lake and ground water were dominant sources of water entering the lake (37 and 36 percent, respectively) and that streamflow dominated the outflow. Surface runoff contributed 27 percent of the inflow-23 percent from Powers Lake inlet and 4 percent from shoreline drainage. Streamflow through Powers Lake outlet accounted for 62 percent of the outflow and evaporation accounted for 38 percent. Based on the streamflow from Powers Lake outlet, the lake's hydraulic residence time was 3.8 years.</p>\n<p>&nbsp;During the study period, precipitation was 27.16 inches or 4.08 inches below long-term (1951-80) average. The data were adjusted or normalized to represent an average year of precipitation and runoff to help evaluate the water quality of the lake for an average year. For an average year, precipitation dominated inflow (42 percent), followed by ground water (32 percent), Powers Lake inlet (21 percent), and shoreline drainage (5 percent). Streamflow through Powers Lake outlet accounted for 61 percent of an average year's outflow budget and the remaining 39 percent was evaporation. Based on an average year's streamflow from Powers Lake outlet, the lake's hydraulic residence time was 4.2 years.</p>\n<p>Phosphorus budgets were prepared for the study period and for an estimated normal year. The phosphorus budget for the study period showed that, of the total inputs (516 pounds), surface runoff contributed the largest amount; shoreline drainage contributed 44 percent, and Powers Lake inlet contributed 36 percent. Direct precipitation contributed 11 percent; ground water, 2 percent; and septic systems, 7 percent. Of the total outputs, 83 pounds (16 percent) was lost from the lake via the outlet; 433 pounds (84 percent) was lost to the sediments as the phosphorus that was attached to particles settled to the lake bottom. An estimated phosphorus budget for a normal year showed that of the total inputs (744 pounds), surface runoff contributed the largest amount; Powers Lake inlet contributed 45 percent and shoreline drainage contributed 35 percent. Precipitation contributed 9 percent; ground water, 1 percent; and septic systems, 10 percent.</p>\n<p>The health of the lake was evaluated using Carlson's Trophic State Index and Vollenweider's model. Carlson's Trophic State Index showed that Powers Lake was moderately enriched and in the mesotrophic range. Comparison of guidelines from Vollenweider's model showed that the total phosphorus input for the study period and for an estimated average year would not cause eutrophic conditions.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri904126","collaboration":"Prepared in cooperation with the Powers Lake Management District","usgsCitation":"Field, S.J., 1993, Hydrology and water quality of Powers Lake, southeastern Wisconsin: U.S. Geological Survey Water-Resources Investigations Report 90-4126, v, 36 p., https://doi.org/10.3133/wri904126.","productDescription":"v, 36 p.","numberOfPages":"41","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":677,"text":"Wisconsin Water Science Center","active":true,"usgs":true}],"links":[{"id":55951,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1990/4126/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":119846,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1990/4126/report-thumb.jpg"}],"country":"United States","state":"Wisconsin","county":"Kenosha County, Walworth County","otherGeospatial":"Powers Lake","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -88.35994720458983,\n              42.49108680341104\n            ],\n            [\n              -88.35994720458983,\n              42.585570646210684\n            ],\n            [\n              -88.24665069580078,\n              42.585570646210684\n            ],\n            [\n              -88.24665069580078,\n              42.49108680341104\n            ],\n            [\n              -88.35994720458983,\n              42.49108680341104\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4acce4b07f02db67e831","contributors":{"authors":[{"text":"Field, S. J.","contributorId":50540,"corporation":false,"usgs":true,"family":"Field","given":"S.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":197530,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":27086,"text":"wri914107 - 1993 - Hydrology and water quality of Wind Lake in southeastern Wisconsin","interactions":[],"lastModifiedDate":"2015-10-26T14:32:14","indexId":"wri914107","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","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":"91-4107","title":"Hydrology and water quality of Wind Lake in southeastern Wisconsin","docAbstract":"<p>The hydrology and water quality of Wind Lake-a recreational lake in a densely populated area of southeastern Wisconsin was studied from October 1, 1987 through September 30,1989.</p>\n<p>A drought in 1988 affected the hydrologic budget of Wind Lake in water years 1988-89. Precipitation was 5.9 inches less than normal in water year 1988 but was 2.3 inches greater than normal in water year 1989. Streamflows were near normal in water year 1988 and 25 percent less than normal in water year 1989 as indicated by data from a nearby streamflow-gaging station. Surface runoff was the dominant source of water to the lake in water year 1988 and 75 percent of the inflow was from Big Muskego Lake.</p>\n<p>The water level in Big Muskego Lake was 1.1 feet below the dam crest at the start of the 1989 water year because of the 1988 drought. About 2,510 acre-feet of water had to fill Big Muskego Lake before water could discharge to Wind Lake. In water year 1989, surface runoff was still the dominant source of water to the lake, but Big Muskego Lake only contributed 52 percent of the water inflow.</p>\n<p>Streamflow dominated the outflow budget for both years. In water year 1988, 88 percent of the outflow budget left by way of Wind Lake outlet and 12 percent evaporated from the lake surface. In water year 1989, 81 percent of the outflow budget left by way of Wind Lake outlet and 19 percent evaporated from the lake surface. On the basis of outflow from Wind Lake for water year 1988, the hydraulic residence time was 0.46 year; in water year 1989 it was 1.05 years.</p>\n<p>The total phosphorus input to Wind Lake from external sources was the same for both years, 3,160 pounds. The largest percentage of the phosphorus load came from Big Muskego Lake-- 70 percent in water year 1988 and 65 percent in water year 1989. Analysis of data by use of Vollenweider's model indicates that the phosphorus loadings for each year would cause eutrophic conditions. Data from a nearby gaging station indicate that phosphorus loading to Wind Lake was less than normal. Phosphorus retention in the lake is small and averages 14 percent of the incoming load for both years.</p>\n<p>Oxygen depletion occurs in the bottom waters during winter and summer months. A maximum anoxic zone was reached on July 18, 1988, when depths greater than 15 feet (about 21 percent of the lake bottom area) were anoxic.</p>\n<p>Total phosphorus concentrations at the lake surface for both years ranged from 11 to 78 micrograms per liter. Mean total phosphorus concentrations in June, July, and August that had averaged 49 micrograms per liter in 1985 through 1987 declined to 20 micrograms per liter in water year 1988 and 22 micrograms per liter in water year 1989. This reduction was related to the drought and reduced phosphorus loadings.</p>\n<p>Phosphorus concentrations 1.5 feet above the lake bottom increase during summer anoxic periods. The phosphorus concentration increased at a rate of 5.2 and 4.8 micrograms per liter per day for total and dissolved orthophosphate phosphorus. A maximum concentration of 760 micrograms per liter of total phosphorus and 650 micrograms per liter of dissolved orthophosphate phosphorus occurred on September 21, 1988, just before autumn turnover. Internal loading of phosphorus for the period October 15, 1987 through October 14, 1988, was estimated to be 2,890 pounds. This represents 48 percent of the combined internal and external total-phosphorus input of 5,960 pounds.</p>\n<p>Algal populations in water year 1988 ranged from 28,200 to 1,610,000 cells per milliliter. A total of 143 species were identified. Blue-green algae dominated the algal population and ranged from 56 percent (February 16, 1988) to 99 percent (five other sampling dates). Aphanocapsa delicatissima caused the largest algal bloom, which reached a maximum concentration of 934,000 cells per milliliter (September 7, 1988).</p>\n<p>Zooplankton populations in water year 1988 ranged from 52.5 to 686 organisms per liter. Eighteen species were identified. The cladoceran, Daphnia, dominated 12 of the 18 samples.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri914107","collaboration":"Prepared in cooperation with the Wind Lake Management District","usgsCitation":"Field, S.J., 1993, Hydrology and water quality of Wind Lake in southeastern Wisconsin: U.S. Geological Survey Water-Resources Investigations Report 91-4107, vii, 61 p., https://doi.org/10.3133/wri914107.","productDescription":"vii, 61 p.","numberOfPages":"68","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":677,"text":"Wisconsin Water Science Center","active":true,"usgs":true}],"links":[{"id":55952,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1991/4107/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":123740,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1991/4107/report-thumb.jpg"}],"country":"United States","state":"Wisconsin","otherGeospatial":"Big Muskego Lake, Littel Muskego Lake, Wind Lake","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -88.21025848388672,\n              42.80018704068213\n            ],\n            [\n              -88.21025848388672,\n              42.95340721665942\n            ],\n            [\n              -88.0502700805664,\n              42.95340721665942\n            ],\n            [\n              -88.0502700805664,\n              42.80018704068213\n            ],\n            [\n              -88.21025848388672,\n              42.80018704068213\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4acce4b07f02db67e80f","contributors":{"authors":[{"text":"Field, S. J.","contributorId":50540,"corporation":false,"usgs":true,"family":"Field","given":"S.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":197531,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":1008,"text":"wsp2396 - 1993 - Numerical simulation of ground-water flow in the central part of the western San Joaquin Valley, California","interactions":[{"subject":{"id":18103,"text":"ofr91535 - 1992 - Numerical simulation of ground-water flow in the central part of the western San Joaquin Valley, California","indexId":"ofr91535","publicationYear":"1992","noYear":false,"title":"Numerical simulation of ground-water flow in the central part of the western San Joaquin Valley, California"},"predicate":"SUPERSEDED_BY","object":{"id":1008,"text":"wsp2396 - 1993 - Numerical simulation of ground-water flow in the central part of the western San Joaquin Valley, California","indexId":"wsp2396","publicationYear":"1993","noYear":false,"title":"Numerical simulation of ground-water flow in the central part of the western San Joaquin Valley, California"},"id":1}],"lastModifiedDate":"2012-02-02T00:05:16","indexId":"wsp2396","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":341,"text":"Water Supply Paper","code":"WSP","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2396","title":"Numerical simulation of ground-water flow in the central part of the western San Joaquin Valley, California","docAbstract":"The occurrence of selenium in agricultural drain water in the central part of the western San Joaquin Valley, California, has focused concern on strategies for managing shallow, saline ground water. To assess alternatives to agricultural drains, a three-dimensional, finite-difference numerical model of the regional groundwater flow system was developed. This report documents the mathematical approach used to model the flow system, the data base on which the model is based, and the methods used to calibrate the model. \r\n\r\nThe 550-square-mile study area includes parts of the Panoche Creek alluvial fan and parts of the Little Panoche Creek and Cantua Creek alluvial fans. The model simulates transient flow in the semiconfined and confined zones above and below the Corcoran Clay Member of the Tulare Formation of Pleistocene age. The model incorporates areally distributed ground-water recharge, areally and vertically distributed pumping, regional-collector drains in the Wesdands Water District (operative from 1980 to 1985), on-farm drains in parts of the Panoche, Broadview, and Firebaugh Water Districts, and bare-soil evaporation (which occurs if the water table is within 7 feet of land surface). \r\n\r\nThe model also incorporates texture-based estimates of hydraulic conductivity, where texture is defined as the fraction of coarse-grained deposits present in a given subsurface interval. The numerical model was developed using hydrologic data from 1972 to 1988. Most of the parameters incorporated into the model were evaluated independently of the model, including system geometry, the distribution of texture, the altitudes of the water table and potentiometric surface of the confined zone in 1972 (initial condition), the hydraulic conductivity of coarse-grained deposits derived from the Coast Ranges, the hydraulic conductivity of coarse-grained deposits derived from the Sierra Nevada, specific storage, recharge, pumping, and parameters needed to incorporate drains and bare-soil evaporation. Four parameters were calibration variables: the hydraulic conductivity of fine-grained deposits in the semiconfined zone, the hydraulic conductivity of the Corcoran Clay Member, specific yield, and the transmissivity of the confined zone. \r\n\r\nThe model was calibrated in two phases. In the first phase, a steady-state model of the ground-water flow system in 1984 was used to constrain the relation between the hydraulic conductivity of fine-grained deposits in the semiconfined zone and the hydraulic conductivity of the Corcoran Clay Member, thus reducing the number of independent variables from four to three. In the second phase of calibration, the change in altitude of the water table from 1972 to 1984, the change in altitude of the potentiometric surface of the confined zone from 1972 to 1984, and the number of model cells subject to bare-soil evaporation from 1972 to 1988 were used to evaluate the remaining three variables. \r\n\r\nThe calibrated model reproduces the average change in water-table altitude (1972-84) to within 0.4 foot (average measured change 11.5 feet) and the average change in confined zone head (1972- 84) to within 19 feet (average measured change 120 feet). The simulated time-series record of the total number of model cells subject to bare-soil evaporation (each cell is 1 mile square) is within the range of the measured data. The measured values are at a minimum in October and a maximum in July. The October values ranged from 103 in 1972 to 132 in 1984 (the drains were closed in 1985) to 151 in 1988. The July values ranged from 144 in 1973 to 198 in 1984, to 204 in 1988. The simulated values ranged from 103 in 1972 to 161 in 1984, to 208 in 1988.","language":"ENGLISH","publisher":"U.S. G.P.O. ;\r\nFor sale by the Books and Open-File Reports Section, U.S. Geological Survey,","doi":"10.3133/wsp2396","usgsCitation":"Belitz, K., Phillips, S.P., and Gronberg, J., 1993, Numerical simulation of ground-water flow in the central part of the western San Joaquin Valley, California: U.S. Geological Survey Water Supply Paper 2396, vi, 69 p. :ill., maps ;28 cm., https://doi.org/10.3133/wsp2396.","productDescription":"vi, 69 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":137965,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wsp/2396/report-thumb.jpg"},{"id":25588,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wsp/2396/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afce4b07f02db69680d","contributors":{"authors":[{"text":"Belitz, Kenneth 0000-0003-4481-2345 kbelitz@usgs.gov","orcid":"https://orcid.org/0000-0003-4481-2345","contributorId":442,"corporation":false,"usgs":true,"family":"Belitz","given":"Kenneth","email":"kbelitz@usgs.gov","affiliations":[{"id":27111,"text":"National Water Quality Program","active":true,"usgs":true},{"id":451,"text":"National Water Quality Assessment Program","active":true,"usgs":true},{"id":466,"text":"New England Water Science Center","active":true,"usgs":true},{"id":376,"text":"Massachusetts Water Science Center","active":true,"usgs":true},{"id":503,"text":"Office of Water Quality","active":true,"usgs":true}],"preferred":true,"id":143013,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Phillips, Steven P. 0000-0002-5107-868X sphillip@usgs.gov","orcid":"https://orcid.org/0000-0002-5107-868X","contributorId":1506,"corporation":false,"usgs":true,"family":"Phillips","given":"Steven","email":"sphillip@usgs.gov","middleInitial":"P.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":143014,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gronberg, Jo Ann M.","contributorId":18342,"corporation":false,"usgs":true,"family":"Gronberg","given":"Jo Ann M.","affiliations":[],"preferred":false,"id":143015,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":27688,"text":"wri934085 - 1993 - Streamflow, dissolved solids, suspended sediment, and trace elements, San Joaquin River, California, June 1985-September 1988","interactions":[],"lastModifiedDate":"2022-12-16T19:17:52.050808","indexId":"wri934085","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","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":"93-4085","title":"Streamflow, dissolved solids, suspended sediment, and trace elements, San Joaquin River, California, June 1985-September 1988","docAbstract":"The 1985-88 study period included hydrologic extremes throughout most of central California. Except for an 11-month period during and after the 1986 flood, San Joaquin River streamflows during 1985-88 were generally less than median for 1975-88. The Merced Tuolumne, and Stanislaus Rivers together comprised 56 to 69 percent of the annual San Joaquin River flow, Salt and Mud Sloughs together comprised 6 to 19 percent, the upper San Joaquin River comprised 2 to 25 percent, and unmeasured sources from agricultural discharges and ground water accounted for 13 to 20 percent. Salt and Mud Sloughs and the unmeasured sources contribute most of the dissolved-solids load. The Merced, Tuolumne, and Stanislaus Rivers greatly dilute dissolved-solids concentrations. Suspended-sediment concentration peaked sharply at more than 600 milligrams per liter during the flood of February 1986. Concentrations and loads varied seasonally during low-flow conditions, with concentrations highest during the early summer irrigation season. Trace elements present primarily in dissolved phases are arsenic, boron, lithium, molybdenum, and selenium. Boron concentrations exceeded the irrigation water-quality criterion of 750 micrograms per liter more than 75 percent of the time in Salt and Mud Sloughs and more than 50 percent of the time at three sites on the San Joaquin River. Selenium concentrations exceeded the aquatic-life criterion of 5 micrograms per liter more than 75 percent of the time in Salt Slough and more than 50 percent of the time in Mud Slough and in the San Joaquin River from Salt Slough to the Merced River confluence. Concentrations of dissolved solids, boron, and selenium usually are highest during late winter to early spring, lower in early summer, higher again in mid-to-late summer, and the lowest in autumn, and generally correspond to seasonal inflows of subsurface tile-drain water to Salt and Mud Sloughs. Trace elements present primarily in particulate phases are aluminum, chromium, copper, iron, manganese, nickel, and zinc, none of which cause significant water-quality problems in the river.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri934085","usgsCitation":"Hill, B.R., and Gilliom, R.J., 1993, Streamflow, dissolved solids, suspended sediment, and trace elements, San Joaquin River, California, June 1985-September 1988: U.S. Geological Survey Water-Resources Investigations Report 93-4085, iv, 21 p., https://doi.org/10.3133/wri934085.","productDescription":"iv, 21 p.","costCenters":[],"links":[{"id":410638,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_47803.htm","linkFileType":{"id":5,"text":"html"}},{"id":56540,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1993/4085/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":158827,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1993/4085/report-thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"San Joaquin River","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -121.25408167229847,\n              37.7742724317164\n            ],\n            [\n              -121.25408167229847,\n              37.05661752587558\n            ],\n            [\n              -120.52163844023164,\n              37.05661752587558\n            ],\n            [\n              -120.52163844023164,\n              37.7742724317164\n            ],\n            [\n              -121.25408167229847,\n              37.7742724317164\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b15e4b07f02db6a4cdd","contributors":{"authors":[{"text":"Hill, B. R.","contributorId":72833,"corporation":false,"usgs":true,"family":"Hill","given":"B.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":198541,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gilliom, R. J.","contributorId":60650,"corporation":false,"usgs":true,"family":"Gilliom","given":"R.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":198540,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":28339,"text":"wri934002 - 1993 - Hydrology and water quality of unmined and reclaimed basins in phosphate-mining areas, west-central Florida","interactions":[],"lastModifiedDate":"2012-02-02T00:08:38","indexId":"wri934002","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1993","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":"93-4002","title":"Hydrology and water quality of unmined and reclaimed basins in phosphate-mining areas, west-central Florida","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBooks and Open-File Reports Section [distributor],","doi":"10.3133/wri934002","usgsCitation":"Lewelling, B., and Wylie, R., 1993, Hydrology and water quality of unmined and reclaimed basins in phosphate-mining areas, west-central Florida: U.S. Geological Survey Water-Resources Investigations Report 93-4002, viii, 93 p. :ill., maps ;28 cm., https://doi.org/10.3133/wri934002.","productDescription":"viii, 93 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":120164,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1993/4002/report-thumb.jpg"},{"id":57149,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1993/4002/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a18e4b07f02db604bcc","contributors":{"authors":[{"text":"Lewelling, B. R.","contributorId":17969,"corporation":false,"usgs":true,"family":"Lewelling","given":"B. R.","affiliations":[],"preferred":false,"id":199620,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wylie, R.W.","contributorId":53426,"corporation":false,"usgs":true,"family":"Wylie","given":"R.W.","email":"","affiliations":[],"preferred":false,"id":199621,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
]}