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Research about Mississippi

Source-linked reports with geographic coverage including Mississippi.

At least 289 records · Page 16Linked to original sources

Water use in Mississippi, 1975

Water use in Mississippi in 1975 amounted to 3,050 mgd (million gallons per day). The total represents pumpage of 1,130 mgd from ground-water sources and 1,920 mgd from surface-water sources. Included in the surface water pumpage are 540 mgd of brackish water from Back Bay of Biloxi. Public Supplies at Jackson in Hinds County and Meridian in Lauderdale County use both surface and ground water. Columbus in Lowndes County uses only surface water. All other public supplies in the State use ground water. A table shows the amount, source, and user of water used in each county of Mississippi during 1975. (Woodard-USGS)

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The Sparta aquifer system in Mississippi

A large amount of information is available on the aquifers of Mississippi. Reports resulting from various areal studies have described the ground-water resources of the areas concerned, but no reports dealing specifically with the entire Mississippi occurrence of individual aquifer systems have previously been prepared. A series of "aquifer atlases" was deemed the most effective way to describe the character, the potential, and the extent of development of the aquifers and thereby provide water managers with data needed for efficient utilization of available resources. This report on the Sparta aquifer system is the third in the series. Information on the aquifers was obtained in the cooperative programs of the U.S. Geological Survey with the Mississippi Board of Water Commissioners and other State and Federal agencies.

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The Meridian-upper Wilcox aquifer in Mississippi

The Meridian-upper Wilcox aquifer contains freshwater in a 15 ,000 sq mi area in northwestern and central Mississippi. The aquifer comprises the Meridian Sand Member of the Tallahatta Formation and discontinuous hydraulically connected sand beds in the upper part of the Wilcox Group. The aggregate sand thickness of the aquifer ranges from less than 50 ft to about 500 ft. The withdrawal of fresh water from the aquifer in Mississippi in 1975 was about 32 Mgal/d. Long-term water-level trends indicate an average decline of about 1 ft per year. Thick, permeable sand beds yield as much as 2,800 gal/min to wells and fresh water extends to depths of more than 2,000 ft. The aquifer is used extensively in areas where the dissolved-solids content exceeds 500 mg/liter; however, the most common problems in water supplies are excessive iron and corrosiveness. (Woodard-USGS)

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Water resources data for Mississippi, water year 1974

Water resources data for the 1974 water year for Mississippi including records of streamflow or reservoir storage at gaging stations, partial-record stations, and miscellaneous sites, special information on the flood in south-central Mississippi in April, and records of water-quality data on the chemical and physical characteristics of surface water, are given in this report. In Part 1, records are included for 79 gaging stations of which 75 are streamflow discharge stations, and 4 are reservoir or lake stations; also are included records for 11 low-flow partial-record stations, 136 crest-stage partial-record stations, and 149 miscellaneous sites. Locations of continuous-record gaging stations are shown in figure 1 and locations of partial-record stations are shown in figure 2. In Part 2, water-quality data on chemical, physical, and biological characteristics of surface water are included for designated sampling sites at which samples were obtained at predetermined intervals such as daily, weekly, monthly, or less frequently. Records are given for 70 sampling stations of which 32 are continuous-record stations, 26 are partial-record stations, and 12 are miscellaneous sites. Locations of water-quality stations are shown in figure 1. A few pertinent stations (not included above) furnished by bordering States are also included in this report. The records were collected and computed by the Water Resources Division of the U.S. Geological Survey under the direction of L. E. Carroon, district chief. These data represent that part of the National Water Data System collected by the U.S. Geological Survey and cooperating State and Federal agencies in Mississippi.

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The Miocene aquifer system in Mississippi

A large amount of information is available on the aquifers of Mississippi. Reports resulting from various areal studies have described the ground-water resources of the areas concerned, but no reports dealing specifically with the statewide occurrence of individual aquifer systems have been prepared previously. A series of "aquifer atlases" was deemed the most effective way to point out the character, the potential, and the extent of development of the aquifers and thereby provide water managers with data needed for efficient utilization of available resources. This report on the Miocene aquifer system is the first in the series. Information on the aquifers was obtained in the cooperative programs of the U.S. Geological Survey with the Mississippi Board of Water Commissioners and other State and Federal agencies.

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Water resources data for Mississippi, water year 1973

Water resources data for the 1973 water year for Mississippi including records of streamflow or reservoir storage at gaging stations, partial-record stations, and miscellaneous sites, and records of water-quality data on the chemical and physical characteristics of surface water, are given in this report. In Part 1, records are included for 79 gaging stations of which 75 are streamflow discharge stations, and 4 are reservoir or lake stations; also are included records for 58 low-flow partial-record stations, 139 crest-stage partial-record stations, and 79 miscellaneous sites. Locations of gaging stations are shown in Figure 1. In Part 2, data on the quality of surface water (chemical and temperature) were collected from designated sampling sites at predetermined intervals such as monthly, or less frequently. Records are given for 70 sampling stations of which 32 are continuous record stations, 26 are partial-record stations, and 12 are miscellaneous sites. Locations of water-quality stations are shown in Figure 1. A few pertinent stations (not included above) furnished by bordering States are also included in this report. The records were collected and computed by the Water Resources Division of the U.S. Geological Survey under the direction of L. E. Carroon, district chief. These data represent that portion of the National Water Data System collected by the U.S. Geological Survey and cooperating State and Federal agencies in Mississippi.

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Earthquake history of Mississippi

Since its admission into the Union in 1817, Mississippi has had only four earthquakes of intensity V or greater within its borders. Although the number of earthquakes known to have been centered within Mississippi's boundaries is small, the State has been affected by numerous shocks located in neighboring States. In 1811 and 1812, a series of great earthquakes near the New Madrid Missouri area was felt in Mississippi as far south as the gulf coast. The New Madrid series caused the banks of the Mississippi River to cave in as far as Vicksburg, mroe than 300 miles from the epicentral region. As a result of this great earthquake series, the northwest corner of Mississippi is in seismic risk zone 3, the highest risk zone. Expect for the new Madrid series, effects in Mississippi from earthquakes located outside of the State have been less than intensity V.

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A study of the surface-water quality in the Hattiesburg, Mississippi area, October 1973

A 72-hour survey of stream quality in the Hattiesburg area in October 1973 showed that the quality of water in the Leaf and Bowie Rivers and their tributaries is contaminated by domestic and industrial wastes. Time of travel of solutes has been greatly increased in the Bowie River as a result of gravel-mining operations. Dissolved-oxygen concentrations vary widely in the study area because of point sources of pollution. High nutrient loads were found, and wastes that affect temperature, pH, and conductivity are evident.

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Changes in floodflow characteristics of a rectified channel caused by vegetation, Jackson, Mississippi

Extreme changes in velocity, stage, and Manning's roughness coefficient, n , were observed during the first year after canalization of Hanging Moss Creek at Jackson, Miss. Additional changes were observed during the following 8 years. The channel, constructed during the summer of 1963, had a 50-foot-wide bottom, 2:1 side slopes, and 12-foot depth. In March 1964, average velocities of 7.8 feet per second were measured at a 5 1/2-foot depth in the clean channel and Manning's n was computed to be 0.022. In October 1964 the average velocity was 3.2 fps at a 5 1/2-foot depth and Manning's n was 0.045. The channel was then lined with fairly thick vegetation consisting of small willows, weeds, and grass. In October 1970 (summer foliage existing) the average velocity was 2.0 fps at a 5 1/2-foot depth and Manning's n was 0.07. Willow trees, 8 to 10 feet high, then lined the channel. In March 1971 (barren foliage), Manning's n was 0.05. In March 1972 (barren foliage), Manning's n was increased to 0.07. These observations indicate that the commonly used values of Manning's n for channel rectification (0.02-0.03) are low and that the carrying capacity of earthen channels may be reduced 50 percent as a result of only 1 year's growth of vegetation and 70 percent as a result of 8 year's growth. The carrying capacity during summer foliage is approximately two-thirds the carrying capacity during barren winter foliage.

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Effects of urbanization on timing of flood peaks on Town Creek in Jackson, Mississippi

During the floods of March and April 1969 the flood crest on Town Creek occurred at Gallatin Street before crests occurred at some upstream points. Heavy urbanization in the downstream part of the basin probably caused the abnormal sequence of flood peaks in Town Creek. Flood flow at Gallatin Street is spread over a greater length of time and the peak discharges caused by urbanization in the lower part of Town Creek basin seem to be lower than those that might be expected if the basin were more uniformly urbanized.

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Water resources data for Mississippi, water year 1971

Water resources data for the 1971 water year for Mississippi including records of streamflow or reservoir storage at gaging stations, partial-record stations, and miscellaneous sites, and records of water-quality data on the chemical and physical characteristics of surface water, are given in this report. In Part 1, records are included for 71 gaging stations of which 67 are streamflow discharge stations, and 4 are reservoir or lake stations; also are included records for 27 low-flow partial-record stations, 143 crest-stage partial-record stations, and 91 miscellaneous sites. Locations of gaging stations are shown in Figure 1. In Part 2, data on the quality of surface water (chemical and temperature) were collected from designated sampling sites at pre-determined intervals such as monthly, or less frequently, and at one site data were recorded on punched paper tape at 60-minute intervals. Records are given for 55 sampling stations of which 5 are continuous record stations, 26 are partial-record stations, and 3 are miscellaneous sites. Locations of water-quality stations are shown in Figure 1. A few pertinent stations (not included above) in bordering States are also included in this report. The records were collected and computed by the Water Resources Division of the U.S. Geological Survey under the direction of L. E. Carroon, district chief. These data represent that portion of the National Water Data System collected by the U.S. Geological Survey and cooperating State and Federal agencies in Mississippi.

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Environmental conditions and resources of southwestern Mississippi

The impending phase-out of Saturn V testing by the National Aeronautics and Space Administration at the Mississippi Test Facility (MTF) necessitates consideration of possible alternative uses for the Facility and surrounding region. To make a rapid and up-to-date study of pertinent environmental factors in that region, remote sensing techniques and data were used by discipline specialists in the U. S. Geological Survey, scientists in other Bureaus of the Department of the Interior and other agencies, and the Project Coordinator. Full cooperation was received from officials, planners, and business executives in Mississippi, as well as timely assistance from NASA Headquarters, the Manned Spacecraft Center/Houston, and the MTF staff. Results from a multi-sensor equipped RB-57F high altitude overflight on February 17, 1970, and a simultaneous helicopter overflight were compared with existing photographs, maps, reports, and locally collected field data to complete this report rapidly as a Geographic Applications Project of the EROS Program, U. S. Department of the Interior. Pertinent background materials, including a comprehensive, annotated bibliography of existing studies of the area, are attached. This report considers 19 potential uses of the MTF equipment, staff, and property in relation to 16 environmental factors.

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