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At least 1,135 records · Page 63Linked to original sources
USGS1976

Organic carbon and nitrogen concentrations and annual organic carbon load of six selected rivers of the United States

The organic carbon load during 1969-70 of each of the six rivers in this study is substantial. The 3.4-billion-kilogram (3.7-million-ton) and 47-million-kilogram (52-thousandton) annual organic carbon loads of the Mississippi River and the Brazos River (Tex.), respectively, were approximately equally distributed between dissolved and suspended phases, whereas the 725-million-kilogram (79.8-million-ton) organic load of the Missouri River was primarily in the suspended phase. The major portion of the 6.4-million-kilogram (7.3 thousand-ton) and the 19-million-kilogram (21-thousand-ton) organic carbon loads of the Sopchoppy River (Fla.) and the Neuse River (N.C.), respectively, was in the dissolved phase. DOC (dissolved organic carbon) concentrations in most rivers were usually less than 8 milligrams per litre. SOC (suspended organic carbon) concentrations fluctuated markedly with discharge, ranging between 1 and 14 percent, by weight, in sediment of most rivers. DOC concentrations were found to be independent of discharge, whereas SOC and SIC (suspended inorganic carbon) concentrations were positively correlated with discharge. Seasonal fluctuations in DOC and SOC were exhibited by the Missouri, Neuse, Ohio, and Brazos Rivers, but both SOC and DOC concentrations were relatively constant throughout the year in the Mississippi and Sopchoppy Rivers. The carbon-nitrogen ratio in the sediment phase of all river waters averaged less than 8 1 as compared with 12:1 or greater for most soils. This high nitrogen content shows a nitrogen enrichment of the stream sediment over that in adjacent soils, which suggests that different decomposition and humification processes are operating in streams than in the soils. The abundance of organic material in the dissolved and suspended phase of all river waters in this study indicate a large capacity factor for various types of organic reactivity within all streams and the quantitative importance of organic constituents in relation to the water quality of rivers and streams.

Water Supply Paper↗
USGS1979

Concentration and fractionation of hydrophobic organic acid constituents from natural waters by liquid chromatography

A scheme is presented which used adsorption chromatography with pH gradient elution and size-exclusion chromatography to concentrate and separate hydrophobic organic acids from water. A review of chromatographic processes involved in the flow scheme is also presented. Organic analytes which appear in each aqueous fraction are quantified by dissolved organic carbon analysis. Hydrophobic organic acids in a water sample are concentrated on a porous acrylic resin. These acids usually constitute approximately 30-50 percent of the dissolved organic carbon in an unpolluted water sample and are eluted with an aqueous eluent (dilute base). The concentrate is then passed through a column of polyacryloylmorpholine gel, which separates the acids into high- and low-molecular-weight fractions. The high- and low-molecular-weight eluates are reconcentrated by adsorption chromatography, then are eluted with a pH gradient into strong acids (predominately carboxylic acids) and weak acids (predominately phenolic compounds). For standard compounds and samples of unpolluted waters, the scheme fractionates humic substances into strong and weak acid fractions that are separated from the low molecular weight acids. A new method utilizing conductivity is also presented to estimate the acidic components in the methanol fraction.

Water Supply Paper↗
USGS1966

Utilization of ground water in the Santa Maria Valley area, California

Overdraft in the Santa Maria Valley ground-water basin since about 1946 has resulted in a significant decline in water levels throughout the basin as ground water has been removed from storage. In 1959 approximately 2,200,000 acre-feet of ground water was in storage above sea level in the ground-water reservoir. Estimates of storage depletion are not consistent with estimates of groundwater recharge and discharge. The natural perennial yield of the basin probably is about 50.000 acre-feet, on the basis of estimated recharge and natural discharge. The augmented perennial yield probably is about 70,000 acre-feet and includes 21,200 acre-feet of water per year released at Twitchell Dam. Storage depletion, not estimated in the seaward ends of the aquifers, will result as the fresh watersea water interface moves landward in response to the continuing decrease in hydraulic gradient in the aquifer system. Evidence of sea-water intrusion into the basin has not been observed, but limited sea-water encroachment may have occurred at the offshore ends of the aquifers. Additional observation wells will be necessary to provide supplemental data to insure that hydraulic heads and gradients in the deeper aquifers are properly monitored.

Water Supply Paper↗
USGS1966

Summary of hydrologic conditions of the Louisville area, Kentucky

Water problems and their solutions have been associated with the growth and development of the Louisville area for more than a century. Many hydrologic data that aided water users in the past can be applied to present water problems and will be helpful for solving many similar problems in the future. Most of the water problems of Louisville, a water-rich area, concern management and are associated with the distribution of supplies, the quality of water, drainage, and waste disposal. The local hydrologic system at Louisville is dominated by the Ohio River and the glacial-outwash deposits beneath its flood plain. The water-bearing limestones in the uplands are ,secondary sources of water. The average flow of the Ohio River at Louisville, 73 billion gallons per day, and the potential availability of 370 million gallons per day of ground water suitable for industrial cooling purposes minimize the chance of acute water shortage in the area. Under current development, use of water averages about 211 million gallons per day, excluding about 392 million gallons of Ohio River water circulated daily through steampower plants and returned directly to the river. Optimum use and control of the water resources will be dependent on solving several water problems. The principal sources of water are in the Ohio River bottom land, whereas the new and potential centers of use are in the uplands. Either water must be piped to these new centers from the present sources or new supplies must be developed. Available data on streamflow and ground water are adequate to plan for the development of small local supplies. Since the completion of floodwalls and levees in 1953, widespread damage from flooding is a thing of the past in the Louisville area. Some local flooding of unprotected areas and of lowlands along tributary streams still takes place. The analyses of streamflow data are useful in planning for protection of these areas, but additional streamflow records and flood-area mapping are needed to best solve the problem. Droughts are a problem only to users of small water supplies in the uplands, where additional water either can be imported or developed locally. Pollution and undesirable chemical quality of water for some uses are the most serious drawbacks to the optimum development of the water resources in Louisville and Jefferson County. Available chemical analyses of ground water are useful for determining its suitability for various uses, but additional data are needed to guide management decisions. Sources of contamination should be inventoried and water samples analyzed periodically to monitor changes in quality.

Kentucky↗
USGS1966

Water resources of Fort Huachuca Military Reservation, southeastern Arizona

The Fort Huachuca Military Reservation, on the northeast flank of the Huachuca Mountains, is in the southern part of the San Pedro River drainage in the Basin and Range physiographic province in Arizona. The main sources of water available in the reservation area are ground water stored in two unconsolidated sedimentary deposits filling the San Pedro basin, and spring flow in Garden ·and Huachuca Canyons in the Huachuca Mountains. The unconsolidated deposits are divided into the upper and lower units of basin flu. These units yield the major part of the fort's water supply, and pumping from them has caused the water level in the Fort Huachuca well field to decline 3 feet per year. All the upper unit and 40 feet of the 220-foot-thick lower unit have seen dewatered in post wells 1 and 2. In Garden Canyon, spring flow is derived from solution channels and fractures in carbonate rocks; and in Huachuca Canyon, from fractures in mudstone, sandstone, carbonate rocks, ·and granite. The flow from springs generally is not used by the fort, but it is sufficient to supply the entire water demand during some periods. Spring flow, if used to supplement the ground-water supply, will decrease the draft on the ground-water reservoir in the two basin-fill units; or it could be used for artificial recharge to these aquifers. A second well field, if developed in the North Gate-Libby Field area, would partly accomplish the same result by decreasing the heavily concentrated draft on the ground-water reservoir of the Fort Huachuca well field, and by utilizing ground water that now moves unused northeastward to the San Pedro River.

Arizona↗
USGS1966

Salinity of the ground water in western Pinal County, Arizona

The chemical quality of the ground water in western Pinal County is nonuniform areally and stratigraphically. The main areas of highly mineralized water are near Casa Grande and near Coolidge. Striking differences have been noted in the quality of water from different depths in the same well. Water from one well, (D-6-7) 25cdd, showed an increase in chloride content from 248 ppm (parts per million) at 350 feet below the land surface to 6,580 ppm at 375 feet; the concentration of chloride increased to 10,400 ppm at 550 feet below the land surface. This change was accompanied by an increase in the total dissolved solids as indicated by conductivity measurements. The change in water quality can be correlated with sediment types. The upper and lower sand and gravel units seem to yield water of better quality than the intermediate silt and clay unit. In places the silt and clay unit contains zones of gypsum and common table salt. These zones yield water that contains large amounts of the dissolved minerals usually associated with water from playa deposits. Highly mineralized ground water in an area near Casa Grande has moved southward and westward as much as 4 miles. Similar water near Coolidge has moved a lesser distance. Good management practices and proper use of soil amendments have made possible the use of water that is high in salinity and alkali hazard for agricultural purposes in western Pinal County. The fluoride content of the ground water in western Pinal County is usually low; however, water from wells that penetrate either the bedrock or unconsolidated sediments that contain certain volcanic rocks may have as much as 9 ppm of fluoride.

Water Supply Paper↗
USGS1966

Recharge studies on the High Plains in northern Lea County, New Mexico

The area described in this report is that part of the southern High Plains principally within northern Lea County, N. Mex. ; it comprises about 1,400,000 acres. Hydrologic boundaries isolate the main aquifer of the area, the Ogallala Formation, from outside sources of natural recharge other than precipitation on the area. Natural recharge to this aquifer from the 15-inch average annual precipitation for the period 1949-60 is estimated to be about 95,000 acre-ft (acre-feet) which is between the 59,000 and 118,000 acre-ft a year obtained from the This estimate (1934) of ? to 1 inch a year. About one-sixth of the water pumped for irrigation, or an average of about 23,000 acre-ft a year in the period 1949-60, returns to the aquifer. The estimated long-term (1939-60) average annual recharge to the aquifer is about 77,000 acre-ft. Discharge from the aquifer is by pumping and underflow from the area. Gross pumpage averaged about 151,000 acre-ft a year in the period 1949-60. Underflow from the area is estimated to have been about 36,000 acre-ft a year. Thus, the estimated average annual discharge from the aquifer was about 187,000 acre-ft a year, and this exceeded recharge by about 69,000 acre-ft a year. This overdraft is reflected in a general net decline of the water table of 10 ft in the period 1950-60 and net declines of as much as 30 feet in local areas. Data obtained during this study indicate that about 100,000 acre-ft of water collects in closed depressions on the surface of the High Plains in years when precipitation is normal. Studies of water losses from ponds in selected depressions indicate that between 20 and 80 percent of this loss recharges the groundwater body and the balance is lost to evapotranspiration, principally evaporation. Artificial recharge facilities constructed in the depressions could put at least 50,000 acre-ft of water underground annually that otherwise would be lost to evaporation. Recharging through pits or spreading ponds would cost less per unit volume of water than recharge through wells.

Water Supply Paper↗
USGS1966

Fluvial sediment and chemical quality of water in the Little Blue River basin, Nebraska and Kansas

The Little Blue River drains about 3,37)0 square miles in south-central Nebraska and north-central Kansas. The uppermost bedrock in the basin is limestone and shale of Permian age and sandstone, shale, and limestone of Cretaceous age. Bedrock is exposed in many places in the lower one-third of the basin but elsewhere is buried beneath a thin to thick mantle of younger sediments, mostly of Quaternary age. These younger sediments are largely fluvial and eolian deposits but also include some glacial till. Consisting in large part of sand and gravel, the fluvial deposits are an important source of ground-water supplies throughout much of the upper two-thirds of the basin. Loess, an eolian deposit of clayey silt, is by far the most widespread surficial deposit. The climate is continental. Temperatures ranging from -38 ? F to 118 ? F have been recorded in the basin. Average annual precipitation as low as 10.31 and as high as 49.32 inches has been recorded. During most years in the period 1956-62, when nearly all the water-quality data were obtained, annual precipitation and annual runoff were greater than normal. Flow-duration data indicate, however, that the flow distribution for the period was near normal. The Little Blue River has the same suspended-sediment characteristics as nearly all unregulated streams in the Great Plains--a wide range in concentrations, low concentrations during low-flow periods, and high concentrations during almost all periods of significant overland runoff. The maximum instantaneous concentration normally occurs many hours before maximum water discharge during any given rise in stage; the maximum daily mean concentration during any given year normally occurs at a moderate stream stage, not during a major flood. Suspended-sediment data for Little Blue River near Deweese, Nebr., which receives drainage from the upstream third of the basin, approximately, show that during the 1!}57-61 water years concentrations of 100 ppm (parts per million) or less prevailed about 42 percent of the time and concentrations of 1,000 ppm or less prevailed about 85 percent of the time. Observed concentrations ranged from 2 to 21,000 ppm: daily mean concentrations ranged from 2 to 13,800 ppm. The discharge-weighted suspended-sediment concentration was computed as about 2,800 ppm at Little Blue River near Deweese, about 3,300 ppm near Fairbury (Endicott), and about 3,000 ppm at Waterville. These stations receive drainage from about one-third, two-thirds, and nearly all the basin, respectively. Water-utilization problems resulting from high concentrations are not significant in the basin ; use of water from the Little Blue River is quantitatively negligible. Concentrations and, consequently, discharges of sediment are greater at a given water discharge on a rising stage than at the same discharge on the falling stage of the same runoff event. Also, a wide range in sediment discharge occurs at similar water discharges during different runoff events. Daily sediment discharges at Little Blue River near Deweese ranged from about 1,400 to 16,000 tons at daily mean water discharges of about 500 cfs (cubic feet per second) and from almost 7,500 to 28,000 tons at water discharges of about 1,000 cfs. The estimated long-term sediment discharge at Little Blue River near Deweese is about 400,000 tons per year: near Fairbury, about 1,200,000 tons per year: and at Waterville, about 1.900,000 tons per year. The high sediment discharge from the downstream part of the basin is due to greater precipitation and runoff--not to higher concentrations of suspended sediment--in the downstream parts of the basin. Nearly all the suspended sediment is silt and clay. The streambed material is mainly medium sand to gravel. The median particle size of bed material observed was about 0.73 mm near Deweese and about 0.77 mm near Fairbury. A few computations of total sediment discharge of Little Blue River near Deweese indicate that suspended-sedim

Water Supply Paper↗
USGS1966

Ground-water development in the high plains of Colorado, with a section on chemical quality of the ground water

The High Plains of Colorado includes all or part of 11 counties and has an area of about 9,500 square miles. The land surface slopes eastward and in most areas is gently rolling owing to erosion by ephemeral streams. The Ogallala Formation, of Pliocene age, is the principal aquifer. In pierces it is overlain by dune sand, alluvium, or loess. The Ogallala is semiconsolidated and consists of sand, gravel, silt, clay, and caliche. The Ogallala Formation is recharged by precipitation at a rate of about 0.85 inch per year. The water table slopes generally eastward. The major use of ground water is for irrigation. About 72,500 acre-feet of water was pumped from 428 wells to irrigate about 56,600 acres in 1962. Estimates of consumptive use made by the Blaney-Criddle method show that the optimum amount of water is being used to irrigate parts of the High Plains. At the end of the 1963 irrigation season, 525 irrigation wells each pumped more than 300 gallons per minute. Water levels decline as much as 10 feet in some places during the irrigation season but return almost to normal at the completion of pumping. By prorating transmissibility on the basis of lithologic descriptions from well logs, the average permeability of the Ogallala Formation in various places can be estimated. Most water from the Ogallala Formation in the High Plains is a calcium bicarbonate solution having a dissolved-solids content ranging from 100 to 600 parts per million. The water is generally hard; its calcium carbonate hardness ranges from 100 to 350 parts per million. Except for some ground water in the area south of the Cheyenne-Kiowa County line, the ground water analyzed was suitable for all uses.

Colorado↗
USGS1966

Special sediment investigations Mississippi River at St. Louis, Missouri, 1961-63

Four sets of comprehensive hydraulic and sediment data were obtained during 1961-63 for the Mississippi River at St. Louis at ranges of mean velocity from 3.3 to 5.6 feet per second, of mean depth from 22 to 37 feet, of width from 1,570 to 1,670 feet, of mean water-surface slope from 0.000054 to 0.000109, and of suspended-sediment concentration from 314 to 928 parts per million. The suspended sediment consisted of 9-46 percent sand, 30-46 percent silt, and 20-56 percent clay. The median size of bed material was about 0.42 millimeter for three sets of measurements and about 0.18 millimeter for the other set. A dune bed form was present during all four data-collection periods. Data obtained on consecutive days indicate that the turbulence constant can be computed from either streamflow-measurement notes or from vertical-velocity profiles. Constants computed from streamflow-measurement notes averaged 0.34, and those from vertical-velocity profiles averaged 0.35. The coefficients of vertical distribution of concentration for selected size ranges of suspended sands (expressed as z1, the slope, of the line relating the logarithms of concentration and a depth parameter) plotted against corresponding fall velocities indicate that on the average, the z1's are proportional to about the 0.7 power of the fall velocity. The data also indicate that the relation of z1 to fall velocity may vary with the mean velocity of flow.

Water Supply Paper↗
USGS1968

Summary of floods in the United States during 1962

This report describes the most outstanding floods in the United Spates during 1962. The most damaging floods during the year occurred in February in southern Idaho and northern Nevada and Utah, and during the latter part of February and the early part of March in Kentucky and in the Cumberland River basin in Tennessee. The floods in Idaho and adjacent areas of Nevada and Utah resulted from a combination of prolonged low-intensity rainfall, moderate amounts of snow on low-altitude areas, a period of high temperatures, and a glaze of ice over deeply frozen ground. The floods affected some of the most valuable agricultural land in the region and some of the most heavily populated areas in Idaho. Damage in Idaho was estimated at more than \$7 million. The floods in Kentucky and Tennessee were caused by two storms; precipitation exceeded 7 inches at places during the second storm. Damage in Kentucky totaled about \$7 million. Recordbreaking snowmelt floods occurred in March and April in southeastern South Dakota and adjacent areas. Many peak discharges were much greater than those that can be expected to occur on an average of once in 25 years. Peak discharges on the Floyd River and the Big Sioux River were the greatest snowmelt floods since 1881. Damage in South Dakota was estimated at \$4 million. Heavy rains during May and intense rains in early June caused flooding in Minnesota on tributaries of the Red River of the North. Peak discharges exceeded previous maximums at some areas in the basins of the Buffalo, Clearwater, and Wild Rice Rivers. Damage from the floods of May and June in Minnesota was about \$5 million. The greatest flood since 1920 in Rapid City, S. Dak., caused at out $600,000 damage in July. The great runoff of 3,300 cubic feet per second, from a relatively small area downstream from Pactola Reservoir, resulted from rainfall having an intensity greater than that for a 100-year recurrence interval. Floods caused almost \$3 million damage in three river basins' in western Florida in September. The greatest damage was in Sarasota where from 3 to 7 feet of water flooded homes and stores. About 70,000 acres of farmland and woodland was inundated. Unusual floods of September in southern Arizona flooded areas up to 10 miles wide. Damage, which totaled about \$3 million, was almost entirely to farms, as the flood area is sparsely populated. In addition to the floods just mentioned, 15 others of lesser magnitude are considered outstanding enough to be included in this annual summary.

Water Supply Paper↗
USGS1966

Availability of ground water upper Pawcatuck River basin Rhode Island

The upper Pawcatuck River basin is a 70-square-mile area in southcentral Rhode Island consisting of broad, rolling hills and narrow valleys in the north and fiat-floored plains in the south. It is drained by the Pawcatuck River and its two major tributaries, the Usquepaug-Queen River and the Chipuxet River. Analysis of the water budget for the basin shows that approximately 94 mgd (million gallons per day) or about 63 percent of the precipitation flows out of the basin as streamflow. Of this amount, about 66 mgd is from ground-water seepage. Two ground-water reservoirs composed of glacial deposits of sand and gravel and capable of substantial yields are in the basin. The larger reservoir underlies the central part of the Usquepaug-Queen River valley. This reservoir ranges in width from 3,000 to 4,000 feet and is 32,000 feet long. A large part of the reservoir contains sand and gravel more than 100 feet thick, having a permeability of more than 1,000 gallons per day per square foot. The yield of this reservoir is estimated to be about 17 mgd. The smaller ground-water reservoir is in the Chipuxet River valley. It is about 4,000 feet wide and 16,000 feet long. A large part of this reservoir contains sand and gravel more than 150 feet thick having a permeability of more than 1,000 gallons per day per square foot. The yield of the Chipuxet reservoir is estimated to be about 8.6 mgd. Mineral content of water from both of the reservoirs is generally less than 200 parts per million of dissolved solids. However, in the Chipuxet groundwater reservoir the dissolved solids are somewhat higher, and the iron content is a problem. Only about 1.5 mgd of water is used in the basin. Most of it is used for public supplies and is obtained from wells not tapping the Usquepaug-Queen or Chipuxet ground-water reservoirs. Estimates of the 25 mgd of ground water potentially available are believed to be conservative, and substantially larger quantities may actually be available when development takes place.

Rhode Island↗
USGS1966

Sedimentation and chemical quality of surface water in the Heart River drainage basin, North Dakota

The Heart River drainage basin of southwestern North Dakota comprises an area of 3,365 square miles and lies within the Missouri Plateau of the Great Plains province. Streamflow of the Heart River and its tributaries during 1949-58 was directly proportional to .the drainage area. After the construction of Heart Butte Dam in 1949 and Dickinson Dam in 1950, the mean annual streamflow near Mandan was decreased an estimated 10 percent by irrigation, evaporation from the two reservoirs, and municipal use. Processes that contribute sediment to the Heart River are mass wasting, advancement of valley heads, and sheet, lateral stream, and gully erosion. In general, glacial deposits, terraces, and bars of Quaternary age are sources of sand and larger sediment, and the rocks of Tertiary age are sources of clay, silt. and sand. The average annual suspended-sediment discharges near Mandan were estimated to be 1,300,000 tons for 1945-49 and 710,000 tons for 1970-58. The percentage composition of ions in water of the Heart River, based on average concentrations in equivalents per million for selected ranges of streamflow, changes with flow and from station to station. During extremely low flows the water contains a large percentage of sodium and about equal percentages of bicarbonate and .sulfate, and during extremely high flows the water contains a large percentage of calcium plus magnesium and bicarbonate. The concentrations, in parts per million, of most of the ions vary inversely with flow. The water in the reservoirs--Edward Arthur Patterson Lake and Lake Tschida--during normal or above-normal runoff is of suitable quality for public use. Generally, because of medium or high salinity hazards, the successful long-term use of Heart River water for irrigation will depend on a moderate amount of leaching, adequate drainage, ,and the growing of crops that have moderate or good salt tolerance.

Water Supply Paper↗