scholarly journals Geology of the Edwards Plateau and Rio Grande Plain adjacent to Austin and San Antonio, Texas, with Reference to the Occurrence of Underground Waters

Science ◽  
1899 ◽  
Vol 9 (222) ◽  
pp. 481-485
Author(s):  
F. W. Simonds
2008 ◽  
Vol 120 (4) ◽  
pp. 906-910 ◽  
Author(s):  
Justin Z. Dreibelbis ◽  
Kyle B. Melton ◽  
Ray Aguirre ◽  
Bret A. Collier ◽  
Jason Hardin ◽  
...  

Author(s):  
Chad Broughton

One Evening in May 1967, in the parched border city of Mission, Texas, Ed Krueger had worked into the early evening on a painting and was late to the demonstration at the railroad crossing. He arrived there at 8:45 p.m. with his wife, Tina; his 18-year-old son, David; and Doug Adair, a young journalist writing for the magazine El Malcriado: The Voice of the Farm Worker. Just a few union members and bystanders were at the crossing when they arrived. Krueger, 36, a lanky and clean-cut minister, had been working with Local 2 of the United Farm Workers Organizing Committee (UFW) and had expected to see thirty or forty striking farmworkers and activists protesting the “scab melons” passing by on the next train. But they weren’t there, and Krueger was worried. They parked 75 feet south of the railroad crossing, on the west side of Conway Street. Krueger and his wife grabbed some hamburgers and sodas and leaned on their bumper to eat with their son. Adair went to talk to a reporter on the north side of the crossing. Joining Krueger was Magdaleno Dimas, an itinerant 29-year-old farmworker. A Mexico-born U.S. citizen, Dimas had a dragon tattoo on his right arm, a rose on his left, and an edgy zeal for the strike. They were waiting for a freight train carrying tens of thousands of recently harvested cantaloupes and honeydews loaded into thirty or so refrigerated cars. The melons had just been cut at La Casita ranch in Rio Grande City, thirty miles west of Mission. After a switch down-valley in Harlingen, the ranch’s melons would head north to San Antonio. La Casita, owned by a California company, operated nearly year round and employed 300 to 500 laborers on 2,700 acres of melons, peppers, carrots, cabbage, celery, and lettuce. The southern boundary of its well-ordered fruit and vegetable fields was the snaking Rio Grande River. All that separated La Casita from Mexico was a short swim across the slow-moving, greenish river that irrigated its fields.


2009 ◽  
Vol 3 ◽  
pp. 4
Author(s):  
Mariana Magna Santos da Nóbrega ◽  
André Luis Calado Araújo ◽  
Jerônimo Pereira dos Santos

RESUMO A Região Metropolitana de Natal, no estado do Rio Grande do Norte, é detentora de grandes reservas de águas subterrâneas pertencentes ao aqüífero Dunas/Barreiras. Essas águas são utilizadas pela população para seu abastecimento e consumo industrial. Além disso, essas reservas possuem características de águas minerais, localizando-se principalmente nos municípios de Parnamirim e Macaíba na região sul e no município de Extremoz, na parte norte. Em contrapartida, o crescimento urbano acelerado da Grande Natal, associado com a falta de esgotamento sanitário e drenagem adequada, resultaram no aporte de carga contaminante originária, principalmente, de fossas e sumidouros domésticos em direção às águas do aqüífero. Este artigo tem como finalidade avaliar as concentrações de nitrato nas fontes de águas minerais, tomando-se como base a proximidade de poços contaminados por esses teores. Para isso, basicamente, se comparou dados que representavam concentrações de NO3- em águas minerais, com teores de nitrato pertencentes à poços de abastecimento público ou particulares da região circunvizinha a essas águas, ambos obtidos através dos projetos de Iniciação Científica desenvolvidos no CEFET-RN. As atividades que fizeram parte da realização do trabalho foram constituídas pela localização da área de estudo, seleção dos poços a serem analisados, análises laboratoriais do íon nitrato, tabulação e tratamento dos dados obtidos, além das considerações a respeito da qualidade das águas subterrâneas. Através dos resultados obtidos foi possível demonstrar a que níveis de concentração de nitrato estão os poços produtores de água mineral, destacando-se dois, dos dez selecionados, que apresentaram valores acima de 10 mg/L. PALAVRAS-CHAVE: água mineral, águas subterrâneas, aqüífero Dunas/Barreiras, contaminação, nitrato e Região Metropolitana de Natal. EVALUATION OF NITRATE CONCENTRATIONS ON MINERAL WATERS PRODUCED IN THE METROPOLITAN REGION OF NATAL ABSTRACT The Metropolitan Region of Natal, located in the state of the Rio Grande do Norte, is detainer of great reserves of groundwater from Dunas/Barreiras aquifer. These waters are used by the population for your supplying and industrial consumption; moreover these reserves possess mineral water characteristics, situated mainly in the cities of Parnamirim and Macaíba, in the south region, and in the city of Extremoz, in the part north. However, the fast urban growth of Natal, associate with the lack of sanitation and drainage, has caused the increase of contamination, mainly by the infiltration of septic tanks effluents in soil. The presented work has as main purpose the evaluation of nitrate concentrations in the mineral water sources, taking in consideration the proximity of wells already contaminated by nitrate. For this, data of nitrate concentrations in mineral waters were compared with those from wells of the public or private supplying from the surrounding region. The work comprised the localization of the study area, selection wells to collect samples, laboratory analyses of the ion nitrate, treatment of data, and the global evaluation of underground waters quality. Through the results was possible to demonstrate the levels of nitrate concentration on mineral water wells, including two with concentration higher than 10 mg/L. KEY WORDS: mineral water, underground waters, aquifer Dunas/Barreiras, contamination, nitrate and Metropolitan Region of Natal.


2002 ◽  
Vol 38 (4) ◽  
pp. 826-833 ◽  
Author(s):  
Markus J. Peterson ◽  
Raymond Aguirre ◽  
Pamela J. Ferro ◽  
Dustin A. Jones ◽  
Tim A. Lawyer ◽  
...  

2007 ◽  
Vol 71 (1) ◽  
pp. 82-86 ◽  
Author(s):  
BRET A. COLLIER ◽  
DUSTIN A. JONES ◽  
JODY N. SCHAAP ◽  
CHARLES J. RANDEL ◽  
BEAU J. WILLSEY ◽  
...  

2008 ◽  
Vol 120 (1) ◽  
pp. 226-228 ◽  
Author(s):  
Kyle B. Melton ◽  
Justin Z. Dreibelbis ◽  
Ray Aguirre ◽  
Bret A. Collier ◽  
T. Wayne Schwertner ◽  
...  

Author(s):  
Thomas W. Cutrer

Examines the Confederate effort to open a path to the Pacific Ocean and the gold fields of Colorado, the formation of a brigade of Texas cavalry to occupy New Mexico Territory for the Confederacy, the 1862 campaign on the Rio Grande from El Paso to Gloriette Pass, and the Confederate withdrawal to San Antonio.


Author(s):  
Barbara Czyżewska

The entrepreneur from San Antonio - Conrad Hilton 1 is often associated with Texas, however, he was actually born and raised in San Antonio, New Mexico, an area near the Rio Grande, surrounded by vast high deserts and stark mountains. He was born on Christmas Day, 1887, second of nine children and, being the firstborn son, he was expected to quickly learn business skills from his father in hope that he could take over the family shop business when he grew up. Conrad discusses his childhood and early years of his career in much detail in his autobiography Be My Guest (Hilton, 1957) and states there that it was in his family home he learnt two values which would guide his whole life: work and faith.


2016 ◽  
Vol 9 (6) ◽  
pp. 1825
Author(s):  
Herminio Sabino de Oliveira Junior ◽  
Paulo Cesar Moura da Silva ◽  
Clara Líva Câmara e Silva

Os recursos hídricos são elementos essenciais para a vida e os processos modificadores do ambiente, por isso possuir conhecimento da atual situação pode garantir uma gestão eficiente objetivando o uso mais sustentável, assim não comprometendo as atuais e futuras gerações no tocante a disponibilidade e qualidade hídrica. As águas subterrâneas são uma alternativa em regiões áridas e semiáridas como no nordeste brasileiro, para o abastecimento humano, já que as taxas de pluviometria são consideravelmente baixas. A cidade de Mossoró nos últimos anos passa por uma expansão urbana e um crescimento populacional, aumentando a demanda por água de boa qualidade para o abastecimento, por isso a presente pesquisa teve como objetivo a análise da qualidade da água subterrânea distribuída à população da área urbana de Mossoró-RN, já que estudos dessa natureza são bastante escassos na região. As análises das amostras foram realizadas no laboratório da CAERN, companhia responsável pela distribuição de água no estado do Rio Grande do Norte. E depois os dados foram analisados por meio da estatística descritiva e interpolação de cada variável para a elaboração de mapas temáticos. As águas subterrâneas de um modo geral como é de se esperar não apresentam restrições quanto as suas propriedades físicas, principalmente por se tratar de um aquífero poroso e relativamente profundo como o aquífero Açu. Um Sistema de Informações Geográficas - SIG pode melhorar a interpretação das análises do comportamento da qualidade da água dos poços, além de diminuir o tempo gasto e espaço de armazenamento.   A B S T R A C T Water resources are essential for life and environmental modifiers processes, so the knowledge of the current situation can ensure efficient management aiming at more sustainable use, thus not affecting the current and future generations regarding the availability and water quality. Groundwater is an alternative in arid and semi-arid regions such as in northeastern of Brazil, for human consumption, since the pluviometry rates are considerably lower. The city of Mossoro in recent years goes through an urban expansion and population growth, increasing the demand for good quality water supplies, so this study aimed to analyze the groundwater quality distributed to the population of the urban area of Mossoro-RN, whereas such studies are rather scarce in the region. The analyzes of the samples were performed in the laboratory of CAERN, the water company that is responsible for distributing water in the state of Rio Grande do Norte. And then the data were analyzed using descriptive statistics and interpolation of each variable for the elaboration of thematic maps. Groundwater, generally speaking, as is to be expected shows no restrictions about their physical properties, mainly because it is a porous aquifer and relatively deep as the Açu aquifer. A Geographic Information System - GIS can improve the understanding of the analysis of the behavior of the quality of the water from wells, and reduce the time spent and storage space. Keywords: Geographic Information System - GIS; water quality; physico-chemical parameters   


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