3 edition of Nitrate and pesticides in ground water of the eastern San Joaquin Valley, California found in the catalog.
Nitrate and pesticides in ground water of the eastern San Joaquin Valley, California
Karen R. Burow
by U.S. Dept. of the Interior, U.S. Geological Survey, Information Services [distributor] in Sacramento, Calif, Denver, CO
Written in English
|Statement||by Karen R. Burow, Sylvia V. Stork, and Neil M. Dubrovsky.|
|Series||Water-resources investigations report -- 98-4040.|
|Contributions||Stork, Sylvia V., Dubrovsky, N. M., National Water-Quality Assessment Program (U.S.), Geological Survey (U.S.)|
|The Physical Object|
|Pagination||vii, 32,  p. :|
|Number of Pages||32|
Much of the scientific work related to subsurface nitrate and pesticide leaching has focused on two areas: documenting the extent of contamination in groundwater; and investigating the fate of these chemicals in the soil root zone (including the potential for groundwater leaching) as it relates to particular agricultural crops and management by: Abstract Temporal monitoring of the pesticide 1,2-dibromochloropropane (DBCP) and nitrate and indicators of mean groundwater age were used to evaluate the transport and fate of agricultural chemicals in groundwater and to predict the long-term effects in the regional aquifer system in the eastern San Joaquin Valley, California.
The proposed approach was employed on water samples from nitrate‐impaired domestic wells of the San Joaquin Valley, sampled as part of our previous research [Lockhart et al., ]. This is the first joint application of nitrogen and oxygen isotopes of nitrate, boron isotopes, and iodine to identify sources of groundwater by: 5. Nitrate Contamination in the San Joaquin Valley Pacific Institute A Sinking Feeling In San Joaquin Valley How to Survive Alone in the Wilderness for 1 week --Eastern .
Nitrate and pesticides in ground water in the eastern San Joaquin Valley, California: occurrence and trends. The occurrence of nitrate and pesticides in ground water in California's eastern San Joaquin Valley may be greatly influenced by the long history of intensive farming and irrigation and the generally permeable sediments. CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): The sustainability of water resources is key to continued prosperity in the San Joaquin Valley and California. The vadose zone is an often-ignored layer of wet but unsaturated sedi-ments between the land surface and the water table. It plays an important role in groundwater recharge and in .
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Trends in concentrations of nitrate, the nematocide 1,2‐dibromo‐3‐chloropropane, and the herbicide simazine during the last two decades are generally consistent with known nitrogen fertilizer and pesticide use and with the position of the. In this study, spatial and temporal trends in concentrations of nitrate and pesticides in ground water in the eastern San Joaquin Valley, California, were evaluated to determine the long-term effects of agricultural and urban development on regional ground-water by: concentrations of nitrate in ground water in the eastern San Joaquin Valley are expected to persist over the long term, owing to continued anthropogenic nitrogen inputs and generally oxic geochemical condi-tions.
Pesticides were detected in 61% of wells sampled during – 95 in shallow ground water in the eastern San Joaquin Valley.
Two of. Get this from a library. Nitrate and pesticides in ground water in the eastern San Joaquin Valley, California: occurrence and trends. [Karen R Burow; Sylvia V Stork; N M Dubrovsky; National Water-Quality Assessment Program (U.S.)].
In this study, spatial and temporal trends in concentrations of nitrate and pesticides in ground water in the eastern San Joaquin Valley, California, were evaluated to determine the long-term. Skip to content. Menu. This study assesses nitrate and pesticide occurrence in ground water beneath three agricultural land-use settings in the eastern San Joaquin Valley, Nitrate and pesticides in ground water of the eastern San Joaquin Valley.
Water samples were collected from 60 domestic wells in vineyard, almond, and a crop grouping of corn, alfalfa, and vegetable land-use by: the eastern San Joaquin Valley. For decades, the leaching of agricul-tural chemicals (fertilizer, especially nitrate, and pesticides) has been a concern of agronomists, soil scientists and hydrologists.
Federal legislation first recognized the potential impacts to water resources in the early s, when the Clean Water Act, the Safe. Also, the amount of nitrate in an individual well is often the result of several nitrate sources. We quantified the amount of nitrate from each of four sources (manure, fertilizer, septic, and natural) in 56 private wells in the San Joaquin Valley (Ransom et al., ).
Results of this “fingerprinting” study indicate that multiple nearby sources have likely contributed to an individual well’s nitrate concentration.
The Eastern San Joaquin Groundwater Authority members have worked together for decades on water resources planning and groundwater management projects. As with past projects, the members will implement a collaborative approach to encourage stakeholder and public participation in the development of its plan.
See Get Involved for more information. occurrence of nitrate and pesticides in ground water beneath three agricultural land-use settings in the eastern san joaquin valley, california, – by karen r.
burow. Journal of Hydrology, () Elsevier Science Publishers B.V., Amsterdam [21 Pesticide residues in ground water of the San Joaquin Valley, California Joseph L. Domagalski and Neil M. Dubrovsky US Geological Survey, Cottage Way, Sacramento, CAUSA (Received 22 January revised and accepted 14 April ) ABSTRACT Domagalski, Cited by: Nitrate Contamination of Drinking Water and the Health of San Joaquin Valley Residents Nitrates: a Widespread Problem in the San Joaquin Valley Nitrate is a natural and human-made contaminant.
Nitrate is an inorganic compound produced when nitrogen is introduced into the environment. Although. Burow KR, Shelton JL, Dubrovsky NM () Occurrence of nitrate and pesticides in ground water beneath three agricultural land-use settings in the eastern San Joaquin Valley, California, – USGS Water Resour Investig Cited by: In this study, spatial and temporal trends in concentrations of nitrate and pesticides in ground water in the eastern San Joaquin Valley, California, were evaluated to determine the long-term effects of agricultural and urban development on regional ground-water quality.
More than one million people in the San Joaquin Valley region have been exposed to unsafe drinking water in recent years from pesticides, arsenic, nitrate, and : Robin Meadows. Valley Groundwater Basin. The Eastern San Joaquin Subbasin is drained by the San Joaquin River and several of its major tributaries namely, the Stanislaus, and Calaveras, and Mokelumne Rivers.
The San Joaquin River flows northward into the Sacramento and San Joaquin Delta and discharges into the San Francisco Size: KB. Water Quality. California’s San Joaquin Valley has the highest rates of drinking water contamination and the greatest number of public water systems with Maximum Contaminant Level (MCL) violations in the state.
The most common contaminants found in the region’s water supply are nitrates, arsenic, coliform bacteria, pesticides. U.S. Geological Survey and the California State Water Resources Control Board Groundwater Quality in the Western San Joaquin Valley, California Groundwater provides more than 40 percent of California’s drinking water.
To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) : Miranda S.
Fram. production, representing about 40% of California’s irrigated cropland and over half of the state’s confined animal farming industry. Nitrate in groundwater poses public health concerns for aboutpeople in California’s Tulare Lake Basin and Salinas Valley who are currently at risk for nitrate contamination of their drinking water.
Occurrence of nitrate and pesticides in ground water beneath three agricultural land-use settings in the eastern San Joaquin Valley, California, Sacramento, Calif.: U.S.
Dept. of the Interior, U.S. Geological Survey ; Denver, CO: Information Services [distributor], (OCoLC) Material Type.Nitrate contamination of groundwater systems used for human water supplies is a major environmental problem in many parts of the world. Fertilizers containing a variety of reduced nitrogen compounds are commonly added to soils to increase agricultural yields.
But the amount of nitrogen added during fertilization typically exceeds the amount of nitrogen taken up by crops.Groundwater nitrate contamination in the Central Valley (CV) aquifer of California is a ubiquitous groundwater problem found in various parts of the valley.
Heavy irrigation and application of fertilizer over the last several decades have caused groundwater nitrate contamination in several domestic, public and monitoring wells in the CV above EPA’s Maximum Contamination level of Cited by: 7.