The Jáchal River is a river in the province of San Juan, Argentina. It is part of the Desaguadero River basin, and one of the most important permanent watercourses in the province, with an average flow of 9 cubic metres per second (320 cu ft/s). It is born from the confluence of the Río de la Palca and the Blanco River, in the northwest of San Juan.
From its origin, the Jáchal flows south for 75 kilometres (47 mi), up to a ravine in the pre-Andean range, in a place called Cuesta del Viento. There, it turns eastward towards the city of San José de Jáchal, flowing for 40 kilometres (25 mi) along a steep gorge. Upon reaching Jáchal, the river turns south again for 40 kilometres (25 mi), and then northeast-southeast, passing by the towns of Tucunuco and Mogna. It then flows 100 kilometres (62 mi) and empties into the upper Desaguadero River (here known as Bermejo).
The Jáchal River is fed primarily by snow thaw, rainfall being only a minor contribution in this semi-arid region. Its drainage basin covers an area of 34,232 square kilometres (13,217 sq mi), or around 23,000 square kilometres (8,900 sq mi) if considered up to Cuesta del Viento.
The Cuesta del Viento Dam, 40 kilometres (25 mi) from Jáchal, has a maximum volume of 136 million cubic metres (110,000 acre⋅ft). It is used to regulate and direct the flow for irrigation, and long-delayed works are in progress to finish a hydroelectricpower station.
The Salto de la Loma hydroelectric plant, 4 kilometres (2.5 mi) northwest of Jáchal, employs a 40-metre (130 ft) high fall and has an installed power of about 1,200 kW.
Environmental issuesedit
The Jáchal is the most important natural source of water for domestic, agricultural and industrial use in its valley, but the quality of its waters is not considered good in normal conditions, due to a high mineralization, especially salts and boron content. The latter has been found in concentrations of 2.8 parts per million (0.7 ppm are considered the upper limit for sensitive crops such as grapes).
In the early 2000s, Barrick Gold Corporation, a Canadian enterprise and the largest gold-mining corporation in the world, started a gold extraction project in the San Juan Andean ranges. Residents of San Juan protested against the project, claiming that the cyanide process will pollute the upper courses of the Jáchal and San Juan rivers. In an interview in February 2006, the governor of San Juan, José Luis Gioja, denied the possibility of such damage.[1]
In 2015, Barrick Gold Corporation admitted that 224,000 liters of "cyanide solution" had spilled into the Jáchal and four other nearby rivers due to what they described as "a faulty valve". While Barrick Gold Corporation and the San Juan Mining Chamber insisted that the spill posed "no threat" to the area's population, the provincial government advised that residents only drink bottled water until further notice.[2]
Referencesedit
^. La Nación (in Spanish). San Juan. 2006-02-26. Archived from the original on 2022-09-05. Retrieved 2022-09-05.
^. MercoPress. 2015-09-21. Archived from the original on 2021-10-28. Retrieved 2022-09-05.
External linksedit
.
Secretaría de Minería de la Nación. .
INTA. Conferencia Internacional sobre Boro en la EEA San Juan.
Fundación para la defensa del ambiente (FUNAM).
CuyoNoticias. Manifestación en contra empresa minera internacional.
jáchal, river, this, article, includes, list, references, related, reading, external, links, sources, remain, unclear, because, lacks, inline, citations, please, help, improve, this, article, introducing, more, precise, citations, june, 2014, learn, when, remo. This article includes a list of references related reading or external links but its sources remain unclear because it lacks inline citations Please help improve this article by introducing more precise citations June 2014 Learn how and when to remove this template message The Jachal River is a river in the province of San Juan Argentina It is part of the Desaguadero River basin and one of the most important permanent watercourses in the province with an average flow of 9 cubic metres per second 320 cu ft s It is born from the confluence of the Rio de la Palca and the Blanco River in the northwest of San Juan Canyon along the Jachal River Contents 1 Course 2 Environmental issues 3 References 4 External linksCourse editFrom its origin the Jachal flows south for 75 kilometres 47 mi up to a ravine in the pre Andean range in a place called Cuesta del Viento There it turns eastward towards the city of San Jose de Jachal flowing for 40 kilometres 25 mi along a steep gorge Upon reaching Jachal the river turns south again for 40 kilometres 25 mi and then northeast southeast passing by the towns of Tucunuco and Mogna It then flows 100 kilometres 62 mi and empties into the upper Desaguadero River here known as Bermejo The Jachal River is fed primarily by snow thaw rainfall being only a minor contribution in this semi arid region Its drainage basin covers an area of 34 232 square kilometres 13 217 sq mi or around 23 000 square kilometres 8 900 sq mi if considered up to Cuesta del Viento The river is dammed in two points The Cuesta del Viento Dam 40 kilometres 25 mi from Jachal has a maximum volume of 136 million cubic metres 110 000 acre ft It is used to regulate and direct the flow for irrigation and long delayed works are in progress to finish a hydroelectric power station The Salto de la Loma hydroelectric plant 4 kilometres 2 5 mi northwest of Jachal employs a 40 metre 130 ft high fall and has an installed power of about 1 200 kW Environmental issues editThe Jachal is the most important natural source of water for domestic agricultural and industrial use in its valley but the quality of its waters is not considered good in normal conditions due to a high mineralization especially salts and boron content The latter has been found in concentrations of 2 8 parts per million 0 7 ppm are considered the upper limit for sensitive crops such as grapes In the early 2000s Barrick Gold Corporation a Canadian enterprise and the largest gold mining corporation in the world started a gold extraction project in the San Juan Andean ranges Residents of San Juan protested against the project claiming that the cyanide process will pollute the upper courses of the Jachal and San Juan rivers In an interview in February 2006 the governor of San Juan Jose Luis Gioja denied the possibility of such damage 1 In 2015 Barrick Gold Corporation admitted that 224 000 liters of cyanide solution had spilled into the Jachal and four other nearby rivers due to what they described as a faulty valve While Barrick Gold Corporation and the San Juan Mining Chamber insisted that the spill posed no threat to the area s population the provincial government advised that residents only drink bottled water until further notice 2 References edit Gioja Es imposible que se pueda contaminar La Nacion in Spanish San Juan 2006 02 26 Archived from the original on 2022 09 05 Retrieved 2022 09 05 Barrick Gold cyanide spill in Argentine mine analyzed by UN team of experts MercoPress 2015 09 21 Archived from the original on 2021 10 28 Retrieved 2022 09 05 External links editCUENCAS HIDRICAS SUPERFICIALES DE LA REPUBLICA ARGENTINA Secretaria de Mineria de la Nacion Provincia de San Juan Recursos hidricos INTA Conferencia Internacional sobre Boro en la EEA San Juan Fundacion para la defensa del ambiente FUNAM Chile crudo e inedito debate parlamentario sobre minera Barrick y proyecto Pascua Lama CuyoNoticias Manifestacion en contra empresa minera internacional 30 13 12 S 68 45 22 W 30 22000 S 68 75611 W 30 22000 68 75611 Retrieved from https en wikipedia org w index php title Jachal River amp oldid 1145697404, wikipedia, wiki, book, books, library,
