This report presents a model, MOC3D, that simulates three-dimensional solute transport in flowing ground water. The model computes changes in concentration of a single dissolved chemical constituent over time that are caused by advective transport, hydrodynamic dispersion (including both mechanical dispersion and diffusion), mixing (or dilution) from fluid sources, and mathematically simple chemical reactions (including linear sorption, which is represented by a retardation factor, and decay). The transport model is integrated with MODFLOW, a three-dimensional ground-water flow model that uses implicit finite-difference methods to solve the transient flow equation. MOC3D uses the method of characteristics to solve the transport equation on the basis of the hydraulic gradients computed with MODFLOW for a given time step. This implementation of the method of characteristics uses particle tracking to represent advective transport and explicit finite-difference methods to calculate the effects of other processes. However, the explicit procedure has several stability criteria that may limit the size of time increments for solving the transport equation; these are automatically determined by the program. For improved efficiency, the user can apply MOC3D to a subgrid of the primary MODFLOW grid that is used to solve the flow equation. However, the transport subgrid must have uniform grid spacing along rows and columns. The report includes a description of the theoretical basis of the model, a detailed description of input requirements and output options, and the results of model testing and evaluation. The model was evaluated for several problems for which exact analytical solutions are available and by benchmarking against other numerical codes for selected complex problems for which no exact solutions are available. These test results indicate that the model is very accurate for a wide range of conditions and yields minimal numerical dispersion for advection-dominated problems. Mass-balance errors are generally less than 10 percent, and tend to decrease and stabilize with time.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/wri964267","usgsCitation":"Konikow, L.F., Goode, D., and Hornberger, G., 1996, A three-dimensional method-of-characteristics solute-transport model (MOC3D): U.S. Geological Survey Water-Resources Investigations Report 96-4267, Report: x, 87 p.; HTML, https://doi.org/10.3133/wri964267.","productDescription":"Report: x, 87 p.; HTML","costCenters":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":119971,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1996/4267/report-thumb.jpg"},{"id":2162,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://water.usgs.gov/software/moc3d.html","linkFileType":{"id":5,"text":"html"}},{"id":56938,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1996/4267/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b16e4b07f02db6a563a","contributors":{"authors":[{"text":"Konikow, Leonard F. 0000-0002-0940-3856 lkonikow@usgs.gov","orcid":"https://orcid.org/0000-0002-0940-3856","contributorId":158,"corporation":false,"usgs":true,"family":"Konikow","given":"Leonard","email":"lkonikow@usgs.gov","middleInitial":"F.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":199233,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Goode, D.J. 0000-0002-8527-2456","orcid":"https://orcid.org/0000-0002-8527-2456","contributorId":95512,"corporation":false,"usgs":true,"family":"Goode","given":"D.J.","affiliations":[],"preferred":false,"id":199235,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hornberger, G.Z.","contributorId":71582,"corporation":false,"usgs":true,"family":"Hornberger","given":"G.Z.","email":"","affiliations":[],"preferred":false,"id":199234,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":25434,"text":"wri964138 - 1996 - Detailed study of selenium and other constituents in water, bottom sediment, soil, alfalfa, and biota associated with irrigation drainage in the Uncompahgre Project area and in the Grand Valley, west-central Colorado, 1991-93","interactions":[],"lastModifiedDate":"2025-01-08T14:26:25.607745","indexId":"wri964138","displayToPublicDate":"1997-07-01T00:00:00","publicationYear":"1996","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":"96-4138","title":"Detailed study of selenium and other constituents in water, bottom sediment, soil, alfalfa, and biota associated with irrigation drainage in the Uncompahgre Project area and in the Grand Valley, west-central Colorado, 1991-93","docAbstract":"In 1985, the U.S. Department of the Interior began a program to study the effects of irrigation drainage in the Western United States. These studies were done to determine whether irrigation drainage was causing problems related to human health, water quality, and fish and wildlife resources. Results of a study in 1991-93 of irrigation drainage associated with the Uncompahgre Project area, located in the lower Gunnison River Basin, and of the Grand Valley, located along the Colorado River, are described in this report. The focus of the report is on the sources, distribution, movement, and fate of selenium in the hydrologic and biological systems and the effects on biota. Generally, other trace- constituent concentrations in water and biota were not elevated or were not at levels of concern.
Soils in the Uncompahgre Project area that primarily were derived from Mancos Shale contained the highest concentrations of total and watrer-extractable selenium. Only 5 of 128 alfalfa samples had selenium concentrations that exceeded a recommended dietary limit for livestock. Selenium data for soil and alfalfa indicate that irrigation might be mobilizing and redistributing selenium in the Uncompahgre Project area.
Distribution of dissolved selenium in ground water is affected by the aqueous geochemical environment of the shallow ground- water system. Selenium concentrations were as high as 1,300 micrograms per liter in water from shallow wells. The highest concentrations of dissolved selenium were in water from wells completed in alluvium overlying the Mancos Shale of Cretaceous age; selenium concentrations were lower in water from wells completed in Mancos Shale residuum. Selenium in the study area could be mobilized by oxidation of reduced selenium, desorption from aquifer sediments, ion exchange, and dissolution. Infiltration of irrigation water and, perhaps nitrate, provide oxidizing conditions for mobilization of selenium from alluvium and shale residuum and for transport to streams and irrigation drains that are tributary to the Gunnison, Uncompahgre, and Colorado Rivers.
Selenium concentrations in about 64 percent of water samples collected from the lower Gunnison River and about 50 percent of samples from the Colorado River near the Colorado-Utah State line exceeded the U.S. Environmental Protection Agency criterion of 5 micrograms per liter for protection of aquatic life. Almost all selenium concentrations in samples collected during the nonirrigation season from Mancos Shale areas exceeded the aquatic-life criterion. The maximum selenium concentrations in surface-water samples were 600 micrograms per liter in the Uncompahgre Project area and 380 micrograms per liter in the Grand Valley.
Irrigation drainage from the Uncompahgre Project and the Grand Valley might account for as much as 75 percent of the selenium load in the Colorado River near the Colorado-Utah State line. The primary source areas of selenium were the eastern side of the Uncompahgre Project and the western one-half of the Grand Valley, where there is extensive irrigation on soils derived from Mancos Shale. The largest mean selenium loads from tributary drainages were 14.0 pounds per day from Loutsenhizer Arroyo in the Uncompahgre Project and 12.8 pounds per day from Reed Wash in the Grand Valley. Positive correlations between selenium loads and dissolved-solids loads could indicate that salinity-control projects designed to decrease dissolved-solids loads also could decrease selenium loads from the irrigated areas. Selenium concentrations in irrigation drainage in the Grand Valley were much higher than concentrations predicted by simple evaporative concentration of irrigation source water. Selenium probably is removed from pond water by chemical and biological processes and incorporated into bottom sediment. The maximum selenium concentration in bottom sediment was 47 micrograms per gram from a pond on the eastern side of the Uncompahgre Project.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri964138","usgsCitation":"Butler, D.L., Wright, W.G., Stewart, K.C., Osmundson, B.C., Krueger, R.P., and Crabtree, D., 1996, Detailed study of selenium and other constituents in water, bottom sediment, soil, alfalfa, and biota associated with irrigation drainage in the Uncompahgre Project area and in the Grand Valley, west-central Colorado, 1991-93: U.S. Geological Survey Water-Resources Investigations Report 96-4138, ix, 136 p., https://doi.org/10.3133/wri964138.","productDescription":"ix, 136 p.","costCenters":[],"links":[{"id":123072,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1996/4138/report-thumb.jpg"},{"id":54166,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1996/4138/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":465849,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_48486.htm","text":"Grand Valley area","linkFileType":{"id":5,"text":"html"}},{"id":465850,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_48487.htm","text":"Uncompahgre area","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e48b1e4b07f02db530813","contributors":{"authors":[{"text":"Butler, D. L.","contributorId":36967,"corporation":false,"usgs":true,"family":"Butler","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":193676,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wright, W. G.","contributorId":19582,"corporation":false,"usgs":true,"family":"Wright","given":"W.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":193675,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stewart, K. C.","contributorId":46519,"corporation":false,"usgs":true,"family":"Stewart","given":"K.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":193677,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Osmundson, B. C.","contributorId":15655,"corporation":false,"usgs":true,"family":"Osmundson","given":"B.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":193674,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Krueger, R. P.","contributorId":8890,"corporation":false,"usgs":true,"family":"Krueger","given":"R.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":193672,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Crabtree, D.W.","contributorId":10070,"corporation":false,"usgs":true,"family":"Crabtree","given":"D.W.","email":"","affiliations":[],"preferred":false,"id":193673,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":24704,"text":"ofr96660 - 1996 - Status of ground-water resources at U.S. Navy Support Facility, Diego Garcia; summary of hydrologic and climatic data, January 1994 through September 1996","interactions":[],"lastModifiedDate":"2012-02-02T00:08:23","indexId":"ofr96660","displayToPublicDate":"1997-07-01T00:00:00","publicationYear":"1996","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"96-660","title":"Status of ground-water resources at U.S. Navy Support Facility, Diego Garcia; summary of hydrologic and climatic data, January 1994 through September 1996","docAbstract":"This report describes the status of ground-water resources at U.S. Navy Support Facility, Diego Garcia. Data presented are from January 1994 through September 1996, with a focus on data from July through September 1996 (third quarter of 1996). A complete database of ground-water withdrawals and chloride-concentration records since 1985 is maintained by the U.S. Geological Survey. Total rainfall for the period July through September 1996 was 8.94 inches, which is 60 percent less than the mean rainfall of 22.23 inches for the period July through September. July and August are part of the annual dry season, while September is the start of the annual wet season. Ground-water withdrawal during July through September 1996 averaged 1,038,300 gallons per day. Withdrawal for the same 3 months in 1995 averaged 888,500 gallons per day. Ground-water withdrawals have steadily increased since about April 1995. At the end of September 1996, the chloride concentration of water from the elevated tanks at Cantonment and Air Operations were 68 and 150 milligrams per liter, respectively. The chloride concentration from all five production areas increased throughout the third quarter of 1996, and started the upward trend in about April 1995. Chloride concentration of ground water in monitoring wells at Cantonment and Air Operations also increased throughout the third quarter of 1996, with the largest increases from water in the deepest monitoring wells. Chloride concentrations have not been at this level since the dry season of 1994. A fuel-pipeline leak at Air Operations in May 1991 decreased total islandwide withdrawals by 15 percent. This lost pumping capacity is being offset by increased pumpage at Cantonment. Six wells do not contribute to the water supply because they are being used to hydraulically divert fuel migration away from water-supply wells by a program of ground-water withdrawal and injection.","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/ofr96660","issn":"0094-9140","usgsCitation":"Torikai, J., 1996, Status of ground-water resources at U.S. Navy Support Facility, Diego Garcia; summary of hydrologic and climatic data, January 1994 through September 1996: U.S. Geological Survey Open-File Report 96-660, v, 43 p. :ill., maps ;28 cm., https://doi.org/10.3133/ofr96660.","productDescription":"v, 43 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":157561,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1996/0660/report-thumb.jpg"},{"id":53737,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1996/0660/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e486fe4b07f02db50ce10","contributors":{"authors":[{"text":"Torikai, J.D.","contributorId":93926,"corporation":false,"usgs":true,"family":"Torikai","given":"J.D.","affiliations":[],"preferred":false,"id":192407,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":30090,"text":"wri964169 - 1996 - Hydrogeology and chemical quality of water and soil at Carroll Island, Aberdeen Proving Ground, Maryland","interactions":[],"lastModifiedDate":"2012-02-02T00:09:07","indexId":"wri964169","displayToPublicDate":"1997-07-01T00:00:00","publicationYear":"1996","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":"96-4169","title":"Hydrogeology and chemical quality of water and soil at Carroll Island, Aberdeen Proving Ground, Maryland","docAbstract":"Carroll Island was used for open-air testing of chemical warfare agents from the late 1940's until 1971. Testing and disposal activities weresuspected of causing environmental contamination at 16 sites on the island. The hydrogeology and chemical quality of ground water, surface water, and soil at these sites were investigated with borehole logs, environmental samples, water-level measurements, and hydrologic tests. A surficial aquifer, upper confining unit, and upper confined aquifer were defined. Ground water in the surficial aquifer generally flows from the east-central part of the island toward the surface-water bodies, butgradient reversals caused by evapotranspiration can occur during dry seasons. In the confined aquifer, hydraulic gradients are low, and hydraulic head is affected by tidal loading and by seasonal pumpage from the west. Inorganic chemistry in the aquifers is affected by brackish-water intrusion from gradient reversals and by dissolution ofcarboniferous shell material in the confining unit.The concentrations of most inorganic constituents probably resulted from natural processes, but some concentrations exceeded Federal water-quality regulations and criteria. Organic compounds were detected in water and soil samples at maximum concentrations of 138 micrograms per liter (thiodiglycol in surface water) and 12 micrograms per gram (octadecanoic acid in soil).Concentrations of organic compounds in ground water exceeded Federal drinking-water regulations at two sites. The organic compounds that weredetected in environmental samples were variously attributed to natural processes, laboratory or field- sampling contamination, fallout from industrial air pollution, and historical military activities.","language":"ENGLISH","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/wri964169","usgsCitation":"Tenbus, F., and Phillips, S., 1996, Hydrogeology and chemical quality of water and soil at Carroll Island, Aberdeen Proving Ground, Maryland: U.S. Geological Survey Water-Resources Investigations Report 96-4169, viii, 156 p. :ill., maps ;28 cm., https://doi.org/10.3133/wri964169.","productDescription":"viii, 156 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":125027,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1996/4169/report-thumb.jpg"},{"id":58904,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1996/4169/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4de4b07f02db6275d5","contributors":{"authors":[{"text":"Tenbus, F.J.","contributorId":45730,"corporation":false,"usgs":true,"family":"Tenbus","given":"F.J.","email":"","affiliations":[],"preferred":false,"id":202660,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Phillips, S.W.","contributorId":6867,"corporation":false,"usgs":true,"family":"Phillips","given":"S.W.","email":"","affiliations":[],"preferred":false,"id":202659,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":29557,"text":"wri964039 - 1996 - Estimation of the recharge areas contributing water to the South Well Field, Columbus, Ohio","interactions":[],"lastModifiedDate":"2023-04-07T21:39:45.717016","indexId":"wri964039","displayToPublicDate":"1997-07-01T00:00:00","publicationYear":"1996","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":"96-4039","title":"Estimation of the recharge areas contributing water to the South Well Field, Columbus, Ohio","docAbstract":"The city of Columbus, Ohio, operates four radial collector wells, designed to yield 42 Mgal/d (million gallons per day), in southern Franklin County, Ohio, as part of their municipal supply of water. The collector wells are adjacent to, and designed to induce infiltration from, Big Walnut Creek and Scioto River. A previously constructed, three-dimensional, steady-state and transient ground-water-flow model of this river-aquifer system was used to estimate contributing recharge areas (CRA's) and calculate particle flowpaths in southern Franklin County. The simulations were of two steady-state periods (October 1979 and March 1986) and one 5-year transient period (March 1986---June 1991). The first simulation (1979) was of conditions before construction of the collector wells. The second simulation (1986) was of conditions when the collector wells were producing 8 Mgal/d. During the 5 years covered in the transient simulation, production at the well field averaged 18.5 Mgal/d. \r\n\r\nUnder the 1979 conditions, the largest ground-water contributing areas were of the quarries and Scioto River (41 and 47 percent of the study area, respectively). During 1986, when 8 Mgal/d was withdrawn, the primary contributing areas were of the quarries (40 percent), collector wells (34 percent), and rivers (8 percent). Travel times associated with simulated particles of water tracked from cells along Big Walnut Creek to their discharge points in cells along Scioto River were about 5 to 60 years in the 1979 simulation and about 7 to 41 years in the 1986 simulation. The endpoints of these particles varied as simulated pumping rates were increased to 22 Mgal/d. \r\n\r\nThe 1986, 10-year CRA's of the collector wells under 8 Mgal/d-conditions totalled about 4.5 mi2. As the pumping rate was increased to 22 Mgal/d in a predictive simulation, 10-year CRA's of the collector wells increased to 6.7mi2. \r\n\r\nBecause the transient simulation encompassed only 5 years, the 10-year CRA's could not be estimated from the transient simulation. However, the size of the 1- to 5-year CRA's for the transient simulation was similar to the size of the 1- to 5-year CRA's for a steady-state predictive simulation if well-field production were 16 Mgal/d. The transient simulations predicted discontinuous CRA's, especially adjacent to the rivers, due to changes in hydrologic stresses. Analyses of the steady-state and transient models showed that sizes of CRA's were most sensitive to changes in porosity, pumping rate, riverbed conductance, and horizontal hydraulic conductivity.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri964039","usgsCitation":"Schalk, C.W., 1996, Estimation of the recharge areas contributing water to the South Well Field, Columbus, Ohio: U.S. Geological Survey Water-Resources Investigations Report 96-4039, iv, 26 p., https://doi.org/10.3133/wri964039.","productDescription":"iv, 26 p.","costCenters":[],"links":[{"id":415480,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_48407.htm","linkFileType":{"id":5,"text":"html"}},{"id":58386,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1996/4039/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":124541,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1996/4039/report-thumb.jpg"}],"country":"United States","state":"Ohio","city":"Columbus","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -83.0417,\n 39.8972\n ],\n [\n -83.0417,\n 39.8192\n ],\n [\n -82.9583,\n 39.8192\n ],\n [\n -82.9583,\n 39.8972\n ],\n [\n -83.0417,\n 39.8972\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ae4b07f02db5fb1aa","contributors":{"authors":[{"text":"Schalk, C. W.","contributorId":64286,"corporation":false,"usgs":true,"family":"Schalk","given":"C.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":201713,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":27199,"text":"wri964101 - 1996 - Nutrient sources and analysis of nutrient water-quality data, Apalachicola-Chattahoochee-Flint River basin, Georgia, Alabama, and Florida, 1972-90","interactions":[],"lastModifiedDate":"2023-01-11T22:26:31.883944","indexId":"wri964101","displayToPublicDate":"1997-07-01T00:00:00","publicationYear":"1996","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":"96-4101","title":"Nutrient sources and analysis of nutrient water-quality data, Apalachicola-Chattahoochee-Flint River basin, Georgia, Alabama, and Florida, 1972-90","docAbstract":"In 1991, the U.S. Geological Survey began full-scale implementation of the National Water-Quality Assessment (NAWQA) program. One of the initial tasks of the NAWQA program is to compile and evaluate existing data from individual study units. Available nutrient data from 1972 through 1990 water years were used to estimate nutrient sources to the Apalachicola–Chattahoochee–Flint (ACF) River basin and describe the presence, distribution, and transport of nutrients in surface and ground waters.
In 1990, about 2,500 tons of nitrogen and 1,100 tons of phosphorus were discharged as point-source loads by 127 municipal wastewater-treatment facilities (WWTF). Nonpoint-source inputs, an unknown percentage of which entered the hydrologic system, included about 120,000 tons of nitrogen and 28,000 tons of phosphorus from animal manure; 82,000 tons of nitrogen and 20,000 tons of phosphorus applied as fertilizer; and 24,000 tons of nitrogen from atmospheric deposition. Estimates of nutrient input to the ACF River basin were not made for natural sources and for the following anthropogenic sources: industrial-wastewater effluent; storm drains; sanitary and combined sewer outflows; and runoff from agricultural, urban, and suburban areas. Nutrient outflow from the Apalachicola River into Apalachicola Bay, Fla., was about 13 percent of estimated nitrogen sources and about 3 percent of estimated total-phosphorus sources in the ACF River basin.
For 1972–90, nutrient concentrations in surface water were high enough to warrant concerns about accelerated eutrophication based on total-phosphorus concentrations and to warrant concerns intermittently about toxicity to fish based on dissolved-ammonia concentrations downstream of wastewater-treatment outfalls from Metropolitan Atlanta and LaGrange, Ga. Many improvements to the water quality of the Chattahoochee and Flint Rivers in the 1980’s and early 1990’s can be directly attributed to improvements in WWTF, legislation directed at decreasing point-source loads of phosphorus, and changes in locations of wastewater-treatment outfalls. However, limited data indicate that nonpoint-source inputs increased upstream of Atlanta and in the Chipola River watershed.
Significant increases in nutrient concentrations, loads, and yields occurred from upstream to downstream of the metropolitan areas of Atlanta, Ga.; Columbus, Ga., and Phenix City, Ala.; and Albany, Ga. The highest mean-annual yields estimated in the ACF River basin for total nitrogen (2.9 tons per square mile (tons/mi2)), total-inorganic nitrogen (2.0 tons/mi2), dissolved ammonia (1.1 tons/mi2), and total phosphorus (0.75 tons/mi2) were downstream of Atlanta.
Most significant trends in nutrient-concentration data from 1980–90 in the Chattahoochee River and the Middle and Lower Flint River basins were increasing, except dissolved ammonia which decreased at several sampling sites in reaches downstream of Atlanta, Columbus and Phenix City, and Albany. At sampling sites on the Chattahoochee and Flint Rivers downstream of Atlanta and Albany, decreasing trends in dissolved-ammonia concentration and increasing trends in dissolved-nitrate concentration were the result of improved wastewater treatment at WWTF. Dissolved-ammonia concentrations decreased and dissolved-nitrate concentrations increased along river reaches downstream of wastewater-treatment facility outfalls for Atlanta and Albany because of nitrification of ammonia to nitrate. Increasing trends in total-phosphorus concentrations are an accurate representation of data for the period 1980–90. However, legislated restrictions on the use of phosphate detergents and improvements to WWTF in the late 1980’s and early 1990’s, resulted in substantial reductions of phosphorus concentrations in wastewater effluent and in rivers at many locations in the 1990’s.
Reservoirs affect nutrient transport because of uptake by phytoplankton and aquatic plants, denitrification,and accumulation of phosphorus associated with sediment in reservoirs. Yields of total-inorganic nitrogen, dissolved ammonia, dissolved nitrate, and total phosphorus decreased between sampling sites upstream and downstream of four reservoirs on the Chattahoochee River. The only exception was the yield of dissolved ammonia increased slightly from upstream to downstream of Lake Sidney Lanier. Much of the nutrient load in the Chattahoochee River downstream of Atlanta is utilized by algae or settles out primarily in West Point Lake, and to a lesser extent, in Lake Harding and Walter F. George Reservoir. In general, the Flint River arm of Lake Seminole had significantly higher concentrations of nutrients than the Chattahoochee River arm of Lake Seminole, which may be the result of the large percentage of the Middle and Lower Chattahoochee River in backwater from reservoirs, the absence of reservoirs on the Flint River downstream of Albany until Lake Seminole, and nonpoint-source inputs of nutrients from intensively farmed areas in the Lower Flint River basin. Decreases in dissolved-ammonia, dissolved-nitrate, and total-phosphorus concentrations in reservoirs and backwater along the Chattahoochee River from West Point Lake to Lake Seminole during summer months are related to the seasonality of phytoplankton production.
The Chipola River had the highest yields of dissolved nitrate (1.2 tons/mi2) estimated in the ACF River basin. Estimated loads of dissolved nitrate increased fairly steadily from 500 to 1,500 tons per year from 1972–90. These factors strongly suggest an agricultural nonpoint source of elevated dissolved-nitrate concentrations from increased irrigated agriculture and fertilizer applications in the Chipola River watershed.
Analyses of nutrients in ground water within the ACF River basin for 1972–90 water years were restricted because of limited available data. The distribution of nitrate concentrations in the ACF River basin for 1972–90 water years included 10 percent of wells and 6 percent of springs with concentrations that probably have elevated nitrate concentrations (3.1 to 10 milligrams per liter (mg/L)), and 1 percent of wells with median nitrate concentrations exceeding the maximum contaminant level of 10 mg/L. Dissolved-nitrate concentrations were significantly lower in the Providence aquifer than in the Floridan aquifer system and the crystalline-rock aquifers. Dissolved-nitrate concentrations in wells used for public supply were significantly lower than in wells used for domestic use or unused wells.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri964101","usgsCitation":"Frick, E.A., Buell, G.R., and Hopkins, E.H., 1996, Nutrient sources and analysis of nutrient water-quality data, Apalachicola-Chattahoochee-Flint River basin, Georgia, Alabama, and Florida, 1972-90: U.S. Geological Survey Water-Resources Investigations Report 96-4101, ix, 120 p., https://doi.org/10.3133/wri964101.","productDescription":"ix, 120 p.","costCenters":[{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"links":[{"id":121496,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/wri_96_4101.jpg"},{"id":411753,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_48459.htm","linkFileType":{"id":5,"text":"html"}},{"id":2141,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/wri/wri96-4101/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Alabama, Florida, Georgia","otherGeospatial":"Apalachicola-Chattahoochee-Flint River basin","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"properties\":{},\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-84.869384765625,29.878755346037977],[-84.9847412109375,29.673735421779128],[-85.2044677734375,29.73099249532227],[-85.4241943359375,30.012030680358613],[-85.49011230468749,30.552800413453546],[-85.49560546875,32.16166284018013],[-85.27587890625,33.5963189611327],[-84.72656249999999,34.17090836352573],[-83.924560546875,34.6241677899049],[-83.64990234375,34.89494244739732],[-83.34228515625,34.56990638085636],[-83.583984375,33.8521697014074],[-84.375,33.22030778968541],[-83.73779296875,31.96148355726853],[-84.05639648437499,30.911651004518244],[-84.5068359375,30.64736425824319],[-84.869384765625,29.878755346037977]]]}}]}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afce4b07f02db696749","contributors":{"authors":[{"text":"Frick, Elizabeth A.","contributorId":98714,"corporation":false,"usgs":true,"family":"Frick","given":"Elizabeth","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":197723,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Buell, Gary R. grbuell@usgs.gov","contributorId":3107,"corporation":false,"usgs":true,"family":"Buell","given":"Gary","email":"grbuell@usgs.gov","middleInitial":"R.","affiliations":[{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"preferred":true,"id":197721,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hopkins, Evelyn H.","contributorId":59025,"corporation":false,"usgs":true,"family":"Hopkins","given":"Evelyn","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":197722,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":26669,"text":"wri954278 - 1996 - Influences of environmental settings on aquatic ecosystems in the Apalachicola-Chattahoochee-Flint River basin","interactions":[],"lastModifiedDate":"2023-01-11T21:49:05.716986","indexId":"wri954278","displayToPublicDate":"1997-07-01T00:00:00","publicationYear":"1996","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":"95-4278","title":"Influences of environmental settings on aquatic ecosystems in the Apalachicola-Chattahoochee-Flint River basin","docAbstract":"The watershed boundary of the Apalachicola-Chattahoochee-Flint (ACF) River basin defines an aquatic ecosystem whose water quality is the result of complex interactions of natural and human influences on land and water resources. Topics relating to the basin's environmental setting-its physical, biological, and cultural characteristics-are summarized to provide an understanding of factors that influence water quality and the health of aquatic ecosystems.
The ACF River basin lies partly in southwestern Georgia, southeastern Alabama, and northwestern Florida and covers 19,800 square miles in the Blue Ridge, the Piedmont, and the Coastal Plain Provinces. The basin includes the drainages of the Chattahoochee River and the Flint River, which meet to form the Apalachicola River. The Apalachicola River flows into the Gulf of Mexico at Apalachicola Bay. Basin hydrology and water quality are influenced by 16 mainstem reservoirs, 13 of which are on the Chattahoochee River. Ground water in the basin is contained in six aquifers-the surficial aquifer system, the Floridan aquifer system, the Claiborne aquifer, the Clayton aquifer, the Providence aquifer, and the crystalline-rock aquifer.
Physiography, climate, and hydrology of the ACF River basin provide natural conditions that support a rich and abundant diversity of plants and animals. Although most of the ACF River basin has been altered by human activities, the basin's environment is noteworthy for its remaining biological diversity and the role it plays in sustaining biological productivity in Apalachicola Bay. The Bay produces 90 percent of Florida's and 13 percent of the Nation's oyster harvest; and functions as a nursery for penaeid shrimp, blue crabs, and a variety of fin fish. The diversity of the basin's aquatic fauna is noteworthy because the basin is home to (1) the largest number of fish species among Gulf Coast drainages east of the Mississippi River, (2) the largest assemblage of freshwater fish in Florida, (3) the largest number of mollusc species among western Florida drainages, and (4) the highest species density of amphibians and reptiles on the continent north of Mexico.
Population of the ACF River basin in 1990 was estimated at 2.6 million. Nearly 90 percent of the total population lived in Georgia, and nearly 60 percent lived in the Metropolitan Atlanta area. The 1990 basin population is projected to increase by 15 percent to 3.0 million by the year 2000, and by 30 percent to 3.4 million by 2010. The largest increases in populations are projected for the Metropolitan Atlanta area.
In 1972-76, approximately 59 percent of the basin was covered by forest, 29 percent was agricultural, 5 percent was wetland, 4 percent was urban, and 3 percent was water or barren land. Most of the original land cover of the basin has been transformed by human activity. Timber is the basin's largest cash crop and most forests consist of second-growth stands or large acreages of planted pine. The dominant agricultural land use in the Piedmont Province is pasture and confined feeding for dairy, livestock, and poultry production. Row-crop agriculture, orchards, and silviculture are most common in the Coastal Plain Province. The top five crops in order from most to least acres harvested in 1990 were peanuts, corn, soybeans, wheat, and cotton.
The water in the basin is used for public and industrial supply, irrigation, power generation, navigation, and recreation. Although most public-supply withdrawals in the Blue Ridge and Piedmont Provinces are from surface-water sources, with the exception of counties near or immediately below the Fall Line, all publicly supplied water in the Coastal Plain is withdrawn from ground-water sources. Ground water supplied 18 percent of the basin's population served by public supply. Total water withdrawn in the ACF River basin in 1990 was 2,098 million gallons per day (Mgal/d), of which Georgia withdrew 82 percent and Florida and Alabama each withdrew 9 percent. Power generation is the single largest water use. Sixteen of the basin's 22 power generating plants are located along the mainstem of the Chattahoochee River. The U.S. Army Corps of Engineers maintains a navigation channel from the mouth of the Apalachicola River to Columbus, Ga., on the Chattahoochee River and to Bainbridge, Ga., on the Flint River.
Water quality in the basin is influenced by the operation of 137 municipal wastewater-treatment facilities. In 1990, 354 Mgal/d of municipal wastewater was discharged within the ACF River basin. Eighty-eight percent of the wastewater was discharged into the Chattahoochee River basin, 10.6 percent into the Flint River basin, and 1.4 percent into the Apalachicola River basin.
Two-thirds of the 938 stream miles in the Georgia portion of the ACF River basin having water quality that does not meet or only partially meets the designated-use criteria in the Chattahoochee River basin. The Chattahoochee River is the most heavily-used water resource both in the ACF River basin and in Georgia. Urban runoff or unknown nonpoint sources are cited as the causes of water-quality regulations in 72 percent of violations. The remaining causes primarily are combined sewer overflows in the Atlanta area, and discharges from municipal or industrial treatment facilities with inadequate treatment capabilities or operational deficiencies.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri954278","usgsCitation":"Couch, C.A., Hopkins, E.H., and Hardy, P.S., 1996, Influences of environmental settings on aquatic ecosystems in the Apalachicola-Chattahoochee-Flint River basin: U.S. Geological Survey Water-Resources Investigations Report 95-4278, v, 58 p., https://doi.org/10.3133/wri954278.","productDescription":"v, 58 p.","costCenters":[],"links":[{"id":411748,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_48352.htm","linkFileType":{"id":5,"text":"html"}},{"id":55537,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1995/4278/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":13458,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/wri/wrir95-4278/","linkFileType":{"id":5,"text":"html"}},{"id":119083,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1995/4278/report-thumb.jpg"}],"country":"United States","state":"Alabama, Florida, Georgia","otherGeospatial":"Apalachicola-Chattahoochee-Flint River basin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -85.45,\n 34.8333\n ],\n [\n -85.45,\n 29.6267\n ],\n [\n -83.5167,\n 29.6267\n ],\n [\n -83.5167,\n 34.8333\n ],\n [\n -85.45,\n 34.8333\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f1e4b07f02db5ee565","contributors":{"authors":[{"text":"Couch, C. A.","contributorId":36972,"corporation":false,"usgs":true,"family":"Couch","given":"C.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":196802,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hopkins, E. H.","contributorId":18411,"corporation":false,"usgs":true,"family":"Hopkins","given":"E.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":196801,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hardy, P. S.","contributorId":16461,"corporation":false,"usgs":true,"family":"Hardy","given":"P.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":196800,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":30305,"text":"wri964061 - 1996 - Hydrogeology and simulation of ground-water flow, Picatinny Arsenal and vicinity, Morris County, New Jersey","interactions":[],"lastModifiedDate":"2019-12-07T09:48:02","indexId":"wri964061","displayToPublicDate":"1997-07-01T00:00:00","publicationYear":"1996","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":"96-4061","title":"Hydrogeology and simulation of ground-water flow, Picatinny Arsenal and vicinity, Morris County, New Jersey","docAbstract":"Ground-water flow in glacial sediments and bedrock at Picatinny Arsenal, N.J., was simulated by use of a three-dimensional finite-difference ground- water-flow model. The modeled area includes a 4.3-square-mile area that extends from Picatinny Lake to the Rockaway River. Most of the study area is bounded by the natural hydrologic boundaries of the ground-water system. eophysical logs, lithologic logs, particle-size data, and core data from selected wells and surface geophysical data were analyzed to define the hydrogeologic framework. Hydrogeologic sections and thickness maps define six permeable and three low-permeability layers that are represented in the model as aquifers and confining units, respectively. Hydrologic data incorporated in the model include a rate of recharge from precipitation of 22 inches per year, estimated from long-term precipitation records and estimates of evapotranspiration. Additional recharge from infiltration along valleys was estimated from measured discharge of springs along the adjacent valley walls and from estimates of runoff from upland drainage that flows to the valley floor. Horizontal and vertical hydraulic conductivities of permeable and low-permeability layers were estimated from examination of aquifer-test data, gamma-ray logs, borehole cuttings, and previously published data. Horizontal hydraulic conductivities in glacial sediments range from 10 to 380 feet per day. Vertical hydraulic conductivities of the low-permeability layers range from 0.01 to 0.7 feet per day. The model was calibrated by simulating steady-state conditions during 1989-93 and by closely matching simulated and measured ground-water levels, vertical ground-water-head differences, and streamflow gain and loss. Simulated steady-state potentiometric- surface maps produced for the six permeable layers indicate that ground water in the unconfined material within Picatinny Arsenal flows predominantly toward the center of the valley, where it discharges to Green Pond Brook. Beneath the upper confining unit, ground water flows southwestward, down the valley. Between First Street and Farley Avenue, the upper confining unit pinches out near the valley walls, resulting in a major input of water to, and causing a local potentiometric high in, the underlying aquifer layers. Ground-water-flow directions southwest of the southern arsenal boundary are predominantly to the Rockaway River.","language":"English","publisher":"U.S. Geological Survey ","publisherLocation":"Reston, VA","doi":"10.3133/wri964061","usgsCitation":"Voronin, L., and Rice, D., 1996, Hydrogeology and simulation of ground-water flow, Picatinny Arsenal and vicinity, Morris County, New Jersey: U.S. Geological Survey Water-Resources Investigations Report 96-4061, vi, 64 p., https://doi.org/10.3133/wri964061.","productDescription":"vi, 64 p.","costCenters":[{"id":589,"text":"Toxic Substances Hydrology 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L. M.","contributorId":93486,"corporation":false,"usgs":true,"family":"Voronin","given":"L. M.","affiliations":[],"preferred":false,"id":203026,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rice, D.E.","contributorId":44188,"corporation":false,"usgs":true,"family":"Rice","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":203025,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":26472,"text":"wri964050 - 1996 - Ground-water hydrology, historical water use, and simulated ground-water flow in Cretaceous-age Coastal Plain aquifers near Charleston and Florence, South Carolina","interactions":[],"lastModifiedDate":"2019-12-30T12:53:36","indexId":"wri964050","displayToPublicDate":"1997-07-01T00:00:00","publicationYear":"1996","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":"96-4050","title":"Ground-water hydrology, historical water use, and simulated ground-water flow in Cretaceous-age Coastal Plain aquifers near Charleston and Florence, South Carolina","docAbstract":"A quasi-three-dimensional, transient, digital, ground-water flow model representing the Coastal Plain aquifers of South Carolina, has been constructed to assist in defining the ground- water-flow system of Cretaceous aquifers near Charleston and Florence, S.C. Both cities are near the centers of large (greater than 150 feet) potentiometric declines in the Middendorf aquifer. In 1989, the diameter of the depressions was approximately 40 miles at Charleston and 15 miles at Florence. The potentiometric decline occurred between predevelopment (1926) and 1982 near Florence, and between predevelopment (1879) and 1989 near Charleston. The city of Charleston does not withdraw water from these aquifers; however, some of the small communities in the area use these aquifers for a potable water supply. The model simulates flow in and between four aquifer systems. The model has a variable-cell-size grid, and spans the Coastal Plain from the Savannah River in the southwest to the Cape Fear Arch in the northeast, and from the Fall Line in the northwest to approximately 30 miles offshore to the southeast. Model-grid cell size is 1 by 1 mile in a 48 by 48 mile area centered in Charleston, and in a 36 by 48 mile area centered in Florence. The model cell size gradually increases to a maximum of 4 by 4 miles outside the two study areas. The entire grid consists of 115 by 127 cells and covers an area of 39,936 square miles. The model was calibrated to historical water-level data. The calibration relied on three techniques: (1) matching simulated and observed potentiometric map surfaces, (2) statistical comparison of observed and simulated heads, and (3) comparison of observed and simulated well hydrographs. Systematic changes in model parameters showed that simulated heads are most sensitive to changes in aquifer transmissivity. Eight predictive ground-water-use scenarios were simulated for the Mount Pleasant area, which presently (1993) uses the Middendorf aquifer as a sole-source of potable water. These simulations use various combinations of spatial distribution, and injection of treated wastewater effluent for existing and future Middendorf aquifer wells.","language":"English","publisher":"U.S. Geological Survey ","doi":"10.3133/wri964050","usgsCitation":"Campbell, B.G., and van Heeswijk, M., 1996, Ground-water hydrology, historical water use, and simulated ground-water flow in Cretaceous-age Coastal Plain aquifers near Charleston and Florence, South Carolina: U.S. Geological Survey Water-Resources Investigations Report 96-4050, viii, 100 p. , https://doi.org/10.3133/wri964050.","productDescription":"viii, 100 p. ","costCenters":[{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"links":[{"id":55291,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1996/4050/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":124971,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1996/4050/report-thumb.jpg"}],"country":"United States","state":"South Carolina","city":"Charleston, Florence","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -80.18920898437499,\n 32.59310597426537\n ],\n [\n -79.65087890624999,\n 32.59310597426537\n ],\n [\n -79.65087890624999,\n 33.03169299978312\n ],\n [\n -80.18920898437499,\n 33.03169299978312\n ],\n [\n -80.18920898437499,\n 32.59310597426537\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -80.013427734375,\n 34.043556504127444\n ],\n [\n -79.6014404296875,\n 34.043556504127444\n ],\n [\n -79.6014404296875,\n 34.334364487026306\n ],\n [\n -80.013427734375,\n 34.334364487026306\n ],\n [\n -80.013427734375,\n 34.043556504127444\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b28e4b07f02db6b10cb","contributors":{"authors":[{"text":"Campbell, B. G.","contributorId":68764,"corporation":false,"usgs":true,"family":"Campbell","given":"B.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":196453,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"van Heeswijk, Marijke heeswijk@usgs.gov","contributorId":1537,"corporation":false,"usgs":true,"family":"van Heeswijk","given":"Marijke","email":"heeswijk@usgs.gov","affiliations":[],"preferred":true,"id":196452,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":22680,"text":"ofr96377 - 1996 - Digital geologic map of McAlester-Texarkana quadrangles, southeastern Oklahoma","interactions":[],"lastModifiedDate":"2023-08-29T19:10:22.109131","indexId":"ofr96377","displayToPublicDate":"1997-06-01T00:00:00","publicationYear":"1996","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"96-377","title":"Digital geologic map of McAlester-Texarkana quadrangles, southeastern Oklahoma","docAbstract":"This data set consists of digital data and accompanying documentation of the surficial geology of the 1:250,000-scale McAlester and Texarkana quadrangles, Oklahoma. The original data are from the Geologic Map, sheet 1 of 4, included in Oklahoma Geological Survey publication, Reconnaissance of the water resources of the McAlester and Texarkana quadrangles, southeastern Oklahoma, Hydrologic Atlas 9, Marcher and Bergman, 1983. The geology was compiled by M.V. Marcher and D.L. Bergman, 1971, and revised by R.O. Fay, 1978.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr96377","usgsCitation":"Cederstrand, J., 1996, Digital geologic map of McAlester-Texarkana quadrangles, southeastern Oklahoma: U.S. Geological Survey Open-File Report 96-377, 3 computer disks, https://doi.org/10.3133/ofr96377.","productDescription":"3 computer disks","costCenters":[],"links":[{"id":1436,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://ok.water.usgs.gov/gis/geology/","linkFileType":{"id":5,"text":"html"}},{"id":420254,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_40015.htm","linkFileType":{"id":5,"text":"html"}},{"id":154604,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"Oklahoma","otherGeospatial":"McAlester-Texarkana quadrangles","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -96,\n 35\n ],\n [\n -96,\n 33.618\n ],\n [\n -94.435,\n 33.618\n ],\n [\n -94.435,\n 35\n ],\n [\n -96,\n 35\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9ae4b07f02db65d450","contributors":{"authors":[{"text":"Cederstrand, J. R.","contributorId":91523,"corporation":false,"usgs":true,"family":"Cederstrand","given":"J. R.","affiliations":[],"preferred":false,"id":188682,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":24690,"text":"ofr95321 - 1996 - Ground-water resources of the lower Apalachicola-Chattahoochee-Flint River basin in parts of Alabama, Florida, and Georgia — Subarea 4 of the Apalachicola-Chattahoochee-Flint and Alabama-Coosa-Tallapoosa River basins","interactions":[],"lastModifiedDate":"2022-07-15T18:44:24.817845","indexId":"ofr95321","displayToPublicDate":"1997-06-01T00:00:00","publicationYear":"1996","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":"95-321","title":"Ground-water resources of the lower Apalachicola-Chattahoochee-Flint River basin in parts of Alabama, Florida, and Georgia — Subarea 4 of the Apalachicola-Chattahoochee-Flint and Alabama-Coosa-Tallapoosa River basins","docAbstract":"The study area is underlain by Coastal Plain sediments of pre-Cretaceous to Quaternary age consisting of alternating units of sand, clay, sandstone, dolomite, and limestone that gradually thicken and dip gently to the southeast. The Upper Floridan aquifer is composed of an off lapping sequence of clastic and carbonate sediments consisting of the Clinchfield Sand, the Ocala, Suwannee, and Tampa Limestones, and the Marianna Formation. The Intermediate system consists of the Intracoastal, Chipola, and Jackson Bluff Formations, is limited in areal extent to the southern part of the basin in Florida, and constitutes an aquifer of low yield. The aquifer-stream-reservoir (flow) system is defined by surface water in hydraulic connection with aquifers and semi-confining units.
Simulation of the flow system by using the U.S. Geological Survey’s MODular Finite-Element model (MODFE) of two-dimensional ground-water flow indicated that ground-water availability in Alabama is affected most by changes to lateral and vertical boundary conditions to the Upper Floridan aquifer that might occur in that state, and is affected minimally by changes to ground- and surface-water levels in Georgia. Incomplete hydrologic information precludes definitive assessment of ground- water-resource potential, overpumpage, and potential for additional development; however, simulated-increased pumpage at more than 3 times the October 1986 rates caused drying of the Upper Floridan aquifer in parts of Miller and Lee Counties, Ga. Evaluation of ground-water-development potential in the virtually untapped Intermediate system has questionable reliability due to the lack of data.
Increased hypothetical pumpage over October 1986 rates for the Upper Floridan aquifer, located almost entirely in Georgia, indicated reduction in ground-water discharge to streams that reduced flow in the Apalachicola River and to the Bay, especially during droughts. Water budgets prepared from simulation results indicate that discharge to streams and recharge by horizontal and vertical flow are principal hydro-logic mechanisms for moving water into, out of, or through aquifers. The Intermediate system contributes less than 2 percent of the total simulated ground-water discharge to streams; thus, it does not represent an important source of water for the Apalachicola River and Bay.
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1996 - National summary of hydrologic conditions and water-related events, water year 1992","interactions":[],"lastModifiedDate":"2012-02-02T00:07:45","indexId":"ofr96107","displayToPublicDate":"1997-06-01T00:00:00","publicationYear":"1996","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"96-107","title":"National summary of hydrologic conditions and water-related events, water year 1992","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nInformation Services [distributor],","doi":"10.3133/ofr96107","issn":"0094-9140","usgsCitation":"McCabe, G.J., Crowe, M., Brown, W., and Fretwell, J.D., 1996, National summary of hydrologic conditions and water-related events, water year 1992: U.S. Geological Survey Open-File Report 96-107, v, 18 p. :ill., maps ;28 cm., https://doi.org/10.3133/ofr96107.","productDescription":"v, 18 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":152908,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1996/0107/report-thumb.jpg"},{"id":51450,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1996/0107/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b00e4b07f02db69839c","contributors":{"authors":[{"text":"McCabe, G. J. Jr.","contributorId":77551,"corporation":false,"usgs":true,"family":"McCabe","given":"G.","suffix":"Jr.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":186517,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Crowe, Michael","contributorId":74404,"corporation":false,"usgs":true,"family":"Crowe","given":"Michael","email":"","affiliations":[],"preferred":false,"id":186516,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brown, W.O.","contributorId":56252,"corporation":false,"usgs":true,"family":"Brown","given":"W.O.","email":"","affiliations":[],"preferred":false,"id":186515,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fretwell, J. D.","contributorId":97933,"corporation":false,"usgs":true,"family":"Fretwell","given":"J.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":186518,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":21976,"text":"ofr96145 - 1996 - National summary of hydrologic conditions and water-related events, water year 1993","interactions":[],"lastModifiedDate":"2012-02-02T00:07:45","indexId":"ofr96145","displayToPublicDate":"1997-06-01T00:00:00","publicationYear":"1996","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"96-145","title":"National summary of hydrologic conditions and water-related events, water year 1993","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nInformation Services [distributor],","doi":"10.3133/ofr96145","issn":"0094-9140","usgsCitation":"McCabe, G.J., Crowe, M., Brown, W., Fretwell, J.D., and Fry, K., 1996, National summary of hydrologic conditions and water-related events, water year 1993: U.S. Geological Survey Open-File Report 96-145, 22 p. :ill., maps ;28 cm., https://doi.org/10.3133/ofr96145.","productDescription":"22 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":152909,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1996/0145/report-thumb.jpg"},{"id":51451,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1996/0145/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b00e4b07f02db69838f","contributors":{"authors":[{"text":"McCabe, G. J. Jr.","contributorId":77551,"corporation":false,"usgs":true,"family":"McCabe","given":"G.","suffix":"Jr.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":186522,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Crowe, Michael","contributorId":74404,"corporation":false,"usgs":true,"family":"Crowe","given":"Michael","email":"","affiliations":[],"preferred":false,"id":186521,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brown, W.O.","contributorId":56252,"corporation":false,"usgs":true,"family":"Brown","given":"W.O.","email":"","affiliations":[],"preferred":false,"id":186519,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fretwell, J. D.","contributorId":97933,"corporation":false,"usgs":true,"family":"Fretwell","given":"J.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":186523,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Fry, K.L.","contributorId":69178,"corporation":false,"usgs":true,"family":"Fry","given":"K.L.","email":"","affiliations":[],"preferred":false,"id":186520,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":247,"text":"wsp2474 - 1996 - Summary of floods in the United States during 1990 and 1991","interactions":[],"lastModifiedDate":"2012-02-02T00:05:06","indexId":"wsp2474","displayToPublicDate":"1997-06-01T00:00:00","publicationYear":"1996","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":"2474","title":"Summary of floods in the United States during 1990 and 1991","docAbstract":"This volume contains 50 articles describing severe, widespread, or unusual flooding in 28 of the 50 States during 1990 and 1991. Each flood is described to an extent commensurate with its significance and the availability of data on the hydrology and the damages. Each article includes one or more maps showing the general area of flooding. Most articles include tables of data that allow comparison of the described flood with past floods at selected sites.","language":"ENGLISH","publisher":"U.S. G.P.O. ;\r\nFor sale by the U.S. Geological Survey, Information Services,","doi":"10.3133/wsp2474","usgsCitation":"Jordan, P.R., and Combs, L., 1996, Summary of floods in the United States during 1990 and 1991: U.S. Geological Survey Water Supply Paper 2474, ix, 257 p. :ill., maps ;28 cm., https://doi.org/10.3133/wsp2474.","productDescription":"ix, 257 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":136591,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wsp/2474/report-thumb.jpg"},{"id":24854,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wsp/2474/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b01e4b07f02db698834","contributors":{"authors":[{"text":"Jordan, Paul Robert","contributorId":57819,"corporation":false,"usgs":true,"family":"Jordan","given":"Paul","email":"","middleInitial":"Robert","affiliations":[],"preferred":false,"id":142140,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Combs, L. J.","contributorId":25133,"corporation":false,"usgs":true,"family":"Combs","given":"L. J.","affiliations":[],"preferred":false,"id":142139,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":22683,"text":"ofr96380 - 1996 - Digital geologic map of Tulsa quadrangle, northeastern Oklahoma","interactions":[],"lastModifiedDate":"2024-11-05T16:52:24.253226","indexId":"ofr96380","displayToPublicDate":"1997-06-01T00:00:00","publicationYear":"1996","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"96-380","title":"Digital geologic map of Tulsa quadrangle, northeastern Oklahoma","docAbstract":"This data set consists of digital data and accompanying documentation of the surficial geology of the 1:250,000-scale Tulsa quadrangle, Oklahoma. The original data are from the Geologic Map, sheet 1 of 4, included in the Oklahoma Geological Survey publication, 'Reconnaissance of the water resources of the Tulsa quadrangle, northeastern Oklahoma', Hydrologic Atlas 2, Marcher and Bingham, 1971. The geology was compiled by M.V. Marcher, in 1969.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr96380","issn":"0094-9140","usgsCitation":"Cederstrand, J., 1996, Digital geologic map of Tulsa quadrangle, northeastern Oklahoma: U.S. Geological Survey Open-File Report 96-380, 1 CD-ROM, https://doi.org/10.3133/ofr96380.","productDescription":"1 CD-ROM","costCenters":[],"links":[{"id":154624,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":463701,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1996/0380/ofr96380.zip","linkFileType":{"id":6,"text":"zip"}},{"id":400187,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_40022.htm"}],"country":"United States","state":"Oklahoma","otherGeospatial":"Tulsa quadrangle","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -96,\n 36\n ],\n [\n -94.533,\n 36\n ],\n [\n -94.533,\n 37\n ],\n [\n -96,\n 37\n ],\n [\n -96,\n 36\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4acee4b07f02db67f431","contributors":{"authors":[{"text":"Cederstrand, J. 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Fay, 1977.","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr96381","issn":"0094-9140","usgsCitation":"Cederstrand, J., 1996, Digital geologic map of Woodward Quadrangle, south-central Oklahoma: U.S. Geological Survey Open-File Report 96-381, 2 computer disks ;3 1/2 in., in envelope 23 x 18 cm., https://doi.org/10.3133/ofr96381.","productDescription":"2 computer disks ;3 1/2 in., in envelope 23 x 18 cm.","costCenters":[],"links":[{"id":1440,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://ok.water.usgs.gov/gis/geology/","linkFileType":{"id":5,"text":"html"}},{"id":154625,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abbe4b07f02db6725e0","contributors":{"authors":[{"text":"Cederstrand, J. R.","contributorId":91523,"corporation":false,"usgs":true,"family":"Cederstrand","given":"J. 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This is the second report for the project. The first report (Carter, 1995) presented data collected through water year 1993. The purpose of the Huron Project is to demonstrate the artificial recharge potential of glacial aquifers in eastern South Dakota. High flows from the James River during spring runoff were used as a source of supplemental recharge for the Warren aquifer, which is a buried, glacial aquifer. In 1990, 70 observation wells were installed by the South Dakota Department of Environment and Natural Resources (DENR) specifically for this study, and 15 existing DENR observation wells were incorporated into the study. In 1993, the recharge well was installed. After a trial injection of recharge water in April 1994, continuous injection began in June 1994. Many sites were monitored to obtain information before, during, and after recharging the aquifer. This report presents data that were collected during the three phases of recharge. Precipitation data are collected at two sites within the study area. A site description and daily precipitation for water years 1994-95 are presented for one precipitation site. Water-level hydrographs are presented for the 85 observation wells and the recharge well. Hydrographs are shown for the period from October 1, 1993, through November 29, 1995. Recharge water was injected from June 2, 1994, through July 29, 1994, and from June 14, 1995, through September 13, 1995. The cumulative volume of injected water and the injection rates into the aquifer are presented for the periods of recharge. Water-quality data were collected from screening, detailed, and plume-monitoring sampling programs. Screening water-quality data for six observation wells are presented. These data include primarily field parameters and common ions. The four detailed sampling sites represent the quality of untreated water, treated water, and ground water from the Warren aquifer. Data presented for the detailed sampling program include field parameters, bacteria counts, and concentrations of common ions, solids, nutrients, trace elements, radiometrics, total organic carbon, herbicides, insecticides, and volatile organic compounds. Water-quality data for the plume-monitoring sampling program were collected from 25 sites during injection of recharge water into the Warren aquifer in 1994 and 1995. The data for the plume-monitoring program include primarily field parameters and common ions. Data for quality-assurance samples also are presented.","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/ofr96555","issn":"0094-9140","usgsCitation":"Carter, J., 1996, Hydrologic data for 1994-96 for the Huron Project of the High Plains Ground-Water Demonstration Program: U.S. Geological Survey Open-File Report 96-555, vi, 131 p. :ill., maps ;28 cm., https://doi.org/10.3133/ofr96555.","productDescription":"vi, 131 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":153668,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1996/0555/report-thumb.jpg"},{"id":52126,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1996/0555/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a25e4b07f02db60eca8","contributors":{"authors":[{"text":"Carter, Janet M. 0000-0002-6376-3473","orcid":"https://orcid.org/0000-0002-6376-3473","contributorId":17637,"corporation":false,"usgs":true,"family":"Carter","given":"Janet M.","affiliations":[{"id":34685,"text":"Dakota Water Science Center","active":true,"usgs":true}],"preferred":false,"id":188659,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":27489,"text":"wri964257 - 1996 - Hydrogeology and geochemistry of acid mine drainage in ground water in the vicinity of Penn Mine and Camanche Reservoir, Calaveras County, California: Second-year summary, 1992-93","interactions":[],"lastModifiedDate":"2019-12-07T10:03:13","indexId":"wri964257","displayToPublicDate":"1997-05-01T00:00:00","publicationYear":"1996","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":"96-4257","title":"Hydrogeology and geochemistry of acid mine drainage in ground water in the vicinity of Penn Mine and Camanche Reservoir, Calaveras County, California: Second-year summary, 1992-93","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/wri964257","collaboration":"Prepared in cooperation with the California State Water Resources Control Board and the East Bay Municipal Utility District","usgsCitation":"Hamlin, S.N., and Alpers, C.N., 1996, Hydrogeology and geochemistry of acid mine drainage in ground water in the vicinity of Penn Mine and Camanche Reservoir, Calaveras County, California: Second-year summary, 1992-93: U.S. Geological Survey Water-Resources Investigations Report 96-4257, v, 44 p. , https://doi.org/10.3133/wri964257.","productDescription":"v, 44 p. ","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":14633,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/wri/1996/4257/","linkFileType":{"id":5,"text":"html"}},{"id":119794,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/wri_96_4257.bmp"}],"country":"United States","state":"California","county":"Calaveras 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38.5013],[-120.0719,38.4936],[-120.0727,38.4478],[-120.0528,38.4534],[-120.0169,38.4363]]]},\"properties\":{\"name\":\"Calaveras\",\"state\":\"CA\"}}]}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4de4b07f02db627824","contributors":{"authors":[{"text":"Hamlin, Scott N.","contributorId":27040,"corporation":false,"usgs":true,"family":"Hamlin","given":"Scott","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":198206,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Alpers, Charles N. 0000-0001-6945-7365 cnalpers@usgs.gov","orcid":"https://orcid.org/0000-0001-6945-7365","contributorId":411,"corporation":false,"usgs":true,"family":"Alpers","given":"Charles","email":"cnalpers@usgs.gov","middleInitial":"N.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":198205,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":26144,"text":"wri964209 - 1996 - Hydrogeology and water quality of the shallow aquifer system at the Explosive Experimental Area, Naval Surface Warfare Center, Dahlgren site, Dahlgren, Virginia","interactions":[],"lastModifiedDate":"2023-04-13T19:58:23.68834","indexId":"wri964209","displayToPublicDate":"1997-05-01T00:00:00","publicationYear":"1996","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":"96-4209","title":"Hydrogeology and water quality of the shallow aquifer system at the Explosive Experimental Area, Naval Surface Warfare Center, Dahlgren site, Dahlgren, Virginia","docAbstract":"In October 1993, the U.S. Geological Survey began a study to characterize the hydrogeology of the shallow aquifer system at the Explosive Experimental Area, Naval Surface Warfare Center, Dahlgren Site, Dahlgren, Virginia, which is located on the Potomac River in the Coastal Plain Physiographic Province. The study provides a description of the hydrogeologic units, directions of ground-water flow, and back-ground water quality in the study area to a depth of about 100 feet. Lithologic, geophysical, and hydrologic data were collected from 28 wells drilled for this study, from 3 existing wells, and from outcrops.
The shallow aquifer system at the Explosive Experimental Area consists of two fining-upward sequences of Pleistocene fluvial-estuarine deposits that overlie Paleocene-Eocene marine deposits of the Nanjemoy-Marlboro confining unit. The surficial hydrogeologic unit is the Columbia aquifer. Horizontal linear flow of water in this aquifer generally responds to the surface topography, discharging to tidal creeks, marshes, and the Potomac River, and rates of flow in this aquifer range from 0.003 to 0.70 foot per day.
The Columbia aquifer unconformably overlies the upper confining unit 12-an organic-rich clay that is 0 to 55 feet thick. The upper confining unit conformably overlies the upper confined aquifer, a 0- to 35-feet thick unit that consists of interbedded fine-grained to medium-grained sands and clay. The upper confined aquifer probably receives most of its recharge from the adjacent and underlying Nanjemoy-Marlboro confining unit. Water in the upper confined aquifer generally flows eastward, northward, and northeastward at about 0.03 foot per day toward the Potomac River and Machodoc Creek.
The Nanjemoy-Marlboro confining unit consists of glauconitic, fossiliferous silty fine-grained sands of the Nanjemoy Formation. Where the upper confined system is absent, the Nanjemoy-Marlboro confining unit is directly overlain by the Columbia aquifer. In some parts of the Explosive Experimental Area, horizontal hydraulic conductivities of the Nanjemoy-Marlboro confining unit and the Columbia aquifer are similar (from 10-4 to 10-2 foot per day), and these units effectively combine to form a thick (greater than 50 feet) aquifer.
The background water quality of the shallow aquifer system is characteristic of ground waters in the Virginia Coastal Plain Physiographic Province. Water in the Columbia aquifer is a mixed ionic type, has a median pH of 5.9, and a median total dissolved solids of 106 milligrams per liter. Water in the upper confined aquifer and Nanjemoy-Marlboro confining unit is a sodium- calcium-bicarbonate type, and generally has higher pH, dissolved solids, and alkalinity than water in the Columbia aquifer. Water in the upper confined aquifer and some parts of the Columbia aquifer is anoxic, and it has high concentrations of dissolved iron, manganese, and sulfide.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri964209","usgsCitation":"Bell, C.F., 1996, Hydrogeology and water quality of the shallow aquifer system at the Explosive Experimental Area, Naval Surface Warfare Center, Dahlgren site, Dahlgren, Virginia: U.S. Geological Survey Water-Resources Investigations Report 96-4209, v, 37 p., https://doi.org/10.3133/wri964209.","productDescription":"v, 37 p.","costCenters":[],"links":[{"id":54940,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1996/4209/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":122911,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1996/4209/report-thumb.jpg"},{"id":415729,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_48543.htm","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Virginia","city":"Dahlgren","otherGeospatial":"Explosive Experimental Area, Naval Surface Warfare Center","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -77.0597,\n 38.3167\n ],\n [\n -77.0597,\n 38.279\n ],\n [\n -77.0167,\n 38.279\n ],\n [\n -77.0167,\n 38.3167\n ],\n [\n -77.0597,\n 38.3167\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4ae4b07f02db625174","contributors":{"authors":[{"text":"Bell, C. F.","contributorId":14449,"corporation":false,"usgs":true,"family":"Bell","given":"C.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":195893,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":27614,"text":"wri964230 - 1996 - Documentation of computer program VS2Dh for simulation of energy transport in variably saturated porous media: Modification of the US Geological Survey's computer program VS2DT","interactions":[],"lastModifiedDate":"2020-04-11T16:50:02.651918","indexId":"wri964230","displayToPublicDate":"1997-05-01T00:00:00","publicationYear":"1996","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":"96-4230","title":"Documentation of computer program VS2Dh for simulation of energy transport in variably saturated porous media: Modification of the US Geological Survey's computer program VS2DT","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri964230","usgsCitation":"Healy, R.W., and Ronan, A., 1996, Documentation of computer program VS2Dh for simulation of energy transport in variably saturated porous media: Modification of the US Geological Survey's computer program VS2DT: U.S. Geological Survey Water-Resources Investigations Report 96-4230, iv, 36 p., https://doi.org/10.3133/wri964230.","productDescription":"iv, 36 p.","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":56476,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1996/4230/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":119858,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1996/4230/report-thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a62e4b07f02db6361e7","contributors":{"authors":[{"text":"Healy, R. W.","contributorId":89872,"corporation":false,"usgs":true,"family":"Healy","given":"R.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":198415,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ronan, A.D.","contributorId":89181,"corporation":false,"usgs":true,"family":"Ronan","given":"A.D.","email":"","affiliations":[],"preferred":false,"id":198414,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":21713,"text":"ofr96337 - 1996 - Data from selected U.S. Geological Survey national stream water-quality monitoring networks (WQN) on CD-ROM","interactions":[],"lastModifiedDate":"2012-02-02T00:07:52","indexId":"ofr96337","displayToPublicDate":"1997-05-01T00:00:00","publicationYear":"1996","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"96-337","title":"Data from selected U.S. Geological Survey national stream water-quality monitoring networks (WQN) on CD-ROM","docAbstract":"Data from two U.S. Geological Survey (USGS) national stream water-quality monitoring networks, the National Stream Quality Accounting Network (NASQAN) and the Hydrologic Benchmark Network (HBN), are now available in a two CD-ROM set. These data on CD-ROM are collectively referred to as WQN, water-quality networks. Data from these networks have been used at the national, regional, and local levels to estimate the rates of chemical flux from watersheds, quantify changes in stream water quality for periods during the past 30 years, and investigate relations between water quality and streamflow as well as the relations of water quality to pollution sources and various physical characteristics of watersheds. \rThe networks include 679 monitoring stations in watersheds that represent diverse climatic, physiographic, and cultural characteristics. The HBN includes 63 stations in relatively small, minimally disturbed basins ranging in size from 2 to 2,000 square miles with a median drainage basin size of 57 square miles. NASQAN includes 618 stations in larger, more culturally-influenced drainage basins ranging in size from one square mile to 1.2 million square miles with a median drainage basin size of about 4,000 square miles. \rThe CD-ROMs contain data for 63 physical, chemical, and biological properties of water (122 total constituents including analyses of dissolved and water suspended-sediment samples) collected during more than 60,000 site visits. These data approximately span the periods 1962-95 for HBN and 1973-95 for NASQAN. The data reflect sampling over a wide range of streamflow conditions and the use of relatively consistent sampling and analytical methods. \rThe CD-ROMs provide ancillary information and data-retrieval tools to allow the national network data to be properly and efficiently used. Ancillary information includes the following: descriptions of the network objectives and history, characteristics of the network stations and water-quality data, historical records of important changes in network sample collection and laboratory analytical methods, water reference sample data for estimating laboratory measurement bias and variability for 34 dissolved constituents for the period 1985-95, discussions of statistical methods for using water reference sample data to evaluate the accuracy of network stream water-quality data, and a bibliography of scientific investigations using national network data and other publications relevant to the networks. \rThe data structure of the CD-ROMs is designed to allow users to efficiently enter the water-quality data to user-supplied software packages including statistical analysis, modeling, or geographic information systems. On one disc, all data are stored in ASCII form accessible from any computer system with a CD-ROM driver. The data also can be accessed using DOS-based retrieval software supplied on a second disc. This software supports logical queries of the water-quality data based on constituent concentrations, sample- collection date, river name, station name, county, state, hydrologic unit number, and 1990 population and 1987 land-cover characteristics for station watersheds. User-selected data may be output in a variety of formats including dBASE, flat ASCII, delimited ASCII, or fixed-field for subsequent use in other software packages. ","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/ofr96337","issn":"0566-8174","usgsCitation":"Alexander, R.B., Ludtke, A., Fitzgerald, K.K., and Schertz, T., 1996, Data from selected U.S. Geological Survey national stream water-quality monitoring networks (WQN) on CD-ROM: U.S. Geological Survey Open-File Report 96-337, vii, 85 p. :ill. ;28 cm., https://doi.org/10.3133/ofr96337.","productDescription":"vii, 85 p. :ill. ;28 cm.","costCenters":[],"links":[{"id":1160,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/ofr96-337","linkFileType":{"id":5,"text":"html"}},{"id":154545,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1996/0337/report-thumb.jpg"},{"id":51240,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1996/0337/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac9e4b07f02db67c645","contributors":{"authors":[{"text":"Alexander, R. B.","contributorId":108103,"corporation":false,"usgs":true,"family":"Alexander","given":"R.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":185376,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ludtke, A. S.","contributorId":6846,"corporation":false,"usgs":true,"family":"Ludtke","given":"A. S.","affiliations":[],"preferred":false,"id":185373,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fitzgerald, K. K.","contributorId":34501,"corporation":false,"usgs":true,"family":"Fitzgerald","given":"K.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":185374,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schertz, T. L.","contributorId":65841,"corporation":false,"usgs":true,"family":"Schertz","given":"T. 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The simulated water levels are compared with the land-surface elevation data to determine the height of the water surface above or below land surface for the area of interest. Finally, the hydroperiod is determined for established time periods using criteria specified by the user. The program application requires the use of geographic information system software (ARC/INFO), including the TIN and GRID subsystems of the software. The application consists of an ANSI compatible C program to translate ground- water data output from the U.S. Geological Survey modular three-dimensional, finite-difference, ground-water flow model (MODFLOW) into a format that can be used as input for the geographic information system programs (AML's). The application uses ARC/INFO AML programs and ARC/INFO menu interface programs to create digital spatial data layers of the land surface and water surface and to determine the hydroperiod. The technique can be used to evaluate and manage wetlands hydrology.","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/ofr96455","issn":"0094-9140","usgsCitation":"Sonenshein, R., 1996, Documentation of programs used to determine a wetlands hydroperiod from model-simulated water-surface elevations: U.S. Geological Survey Open-File Report 96-455, iii, 47 p. :ill. ;28 cm., https://doi.org/10.3133/ofr96455.","productDescription":"iii, 47 p. :ill. ;28 cm.","costCenters":[],"links":[{"id":155078,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1996/0455/report-thumb.jpg"},{"id":53619,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1996/0455/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a61e4b07f02db63615e","contributors":{"authors":[{"text":"Sonenshein, R.S.","contributorId":10415,"corporation":false,"usgs":true,"family":"Sonenshein","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":192172,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":23610,"text":"ofr96435 - 1996 - Water-quality data for nutrients, pesticides, and volatile organic compounds in near-surface aquifers of the midcontinental United States, 1992-1994","interactions":[],"lastModifiedDate":"2019-12-05T13:55:31","indexId":"ofr96435","displayToPublicDate":"1997-05-01T00:00:00","publicationYear":"1996","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"96-435","title":"Water-quality data for nutrients, pesticides, and volatile organic compounds in near-surface aquifers of the midcontinental United States, 1992-1994","docAbstract":"Water samples were collected from 175 wells in 12 Midcontinental States (Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, Wisconsin) from 1992 through 1994 to determine the spatial distribution of nutrients, pesticides, and volatile organic compounds in ground water, and to document the potential effects of the historic flooding that occurred during 1993 on ground- water quality. Concentrations of nitrate greater than the 0.05 mg/L reporting limit were found in 69.1 percent of the water samples, and nitrate concentrations exceeded the U.S. Environmental Protection Agency maximum contaminant limit of 10 mg/L in 9.6 percent of the 249 samples analyzed for nitrate. Pesticides or pesticide metabolites were detected in 72.4 percent of the 210 pesticide analyses, and 28 different compounds were found. Concentrations of multiple pesticide compounds above analytical reporting limits were found in water from about 60 percent of the wells sampled. Although pesticides were frequently detected, only one sample had a pesticide concentration that exceeded a maximum contaminant level for drinking water. The most frequently detected compounds, however, were pesticide metabolites for which maximum contaminant levels have not yet been established. Volatile organic compounds were detected in 13.5 percent of the 155 samples analyzed for these compounds. Only one sample had concentrations of volatile organic compounds that exceeded a maximum contaminant level for drinking water.
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K.E.","contributorId":16444,"corporation":false,"usgs":true,"family":"Zichelle","given":"K.E.","email":"","affiliations":[],"preferred":false,"id":190405,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Thurman, E.M.","contributorId":102864,"corporation":false,"usgs":true,"family":"Thurman","given":"E.M.","affiliations":[],"preferred":false,"id":190407,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":30568,"text":"wri964277 - 1996 - Hydrology and tree-distribution patterns of karst wetlands at Arnold Engineering Development Center, Tennessee","interactions":[],"lastModifiedDate":"2012-02-02T00:08:59","indexId":"wri964277","displayToPublicDate":"1997-05-01T00:00:00","publicationYear":"1996","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":"96-4277","title":"Hydrology and tree-distribution patterns of karst wetlands at Arnold Engineering Development Center, Tennessee","docAbstract":"Flooding regimes, ground-water interactions, and tree distribution patterns were determined in seasonally flooded sinkhole wetlands at Arnold Engineering Development Center near Manchester, Tennessee. The wetlands are ecologically significant because they support coastal-plain plants and animals far from their typical ranges. Surface-water stage, ground-water levels, rainfall, and streamflow were monitored at or near five wetland sites. Sinking Pond, Willow Oak Swamp, and Westall Swamp are compound sinks with depths greater than 2.5 meters, visible internal drains, and complex bottom topography dominated by coalesced sinkholes and connecting channels. Tupelo Swamp and Goose Pond are karst pans with depths less than 1.5 meters, flat bottoms, and without visible internal drains. Stage rose and fell abruptly in the compound sinks. Maximum water depths ranged from 2.6 meters in Westall Swamp to 3.5 meters in Sinking Pond. Water levels in wells adjacent to Sinking Pond and Westall Swamp rose and fell abruptly, corresponding closely to surface-water stage throughout periods of high water. The two karst pans filled and drained more gradually, but remained flooded longer than the compound sinks. The maximum recorded water depths were 1.1 meters in Tupelo Swamp and 0.7 meter in Goose Pond. Water levels in nearby wells remained lower than the stage in the pans throughout the study period. Tree species were identified and the elevations and diameters of individual trees were measured along 10 transects. Two transects crossed Sinking Pond, two crossed Tupelo Swamp, and one crossed Willow Oak Swamp. The remaining five transects crossed intermittent drainageways that carry flow into or out of Sinking Pond. Transects through ponds had fewer trees but more basal area per unit area of land surface than did transects through channels. Water tupelo (Nyssa aquatica L.) dominated the interior of Tupelo Swamp and had minimal overlap in terms of elevation and flooding duration with other wetland trees that were confined to the pond's periphery. Overcup oak (Quercus lyrata Walt.) dominated the interior of Sinking Pond. Overlap between overcup oak and other wetland trees in terms of elevation and flooding frequency was minimal across the deeper Sinking Pond transect but was substantial across the shallow transect. Willow oak (Quercus phellos L.) dominated the interior of Willow Oak Swamp and had a relation to other wetland trees similar to that of overcup oak in the shallow Sinking Pond transect. Transects across broad swales had a relatively large degree of vertical zonation among wetland and upland tree species. Along transects through well defined channels, elevation distributions of wetland and some upland tree species were grouped near each other and near the distribution of land-surface elevations.","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/wri964277","usgsCitation":"Wolfe, W., 1996, Hydrology and tree-distribution patterns of karst wetlands at Arnold Engineering Development Center, Tennessee: U.S. Geological Survey Water-Resources Investigations Report 96-4277, iv, 46 p. :ill., maps ;28 cm., https://doi.org/10.3133/wri964277.","productDescription":"iv, 46 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":2826,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wri96-4277","linkFileType":{"id":5,"text":"html"}},{"id":125028,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/wri_96_4277.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4acce4b07f02db67e84a","contributors":{"authors":[{"text":"Wolfe, W.J.","contributorId":10069,"corporation":false,"usgs":true,"family":"Wolfe","given":"W.J.","email":"","affiliations":[],"preferred":false,"id":203470,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ]}