scholarly journals Hydrologic characteristics of abandoned coal mines used as sources of public water supply in McDowell County, West Virginia

1992 ◽  
Keyword(s):  
West Virginia ◽  
Water Supply ◽  
Coal Mines ◽  
Public Water Supply ◽  
Abandoned Coal Mines

scholarly journals Correction: Self-Reported Household Impacts of Large-Scale Chemical Contamination of the Public Water Supply, Charleston, West Virginia, USA

PLoS ONE ◽  
2015 ◽  
Vol 10 (6) ◽  
pp. e0131143 ◽  
Author(s):  
Charles P. Schade ◽  
Nasandra Wright ◽  
Rahul Gupta ◽  
David A. Latif ◽  
Ayan Jha ◽  
...  
Keyword(s):  
West Virginia ◽  
Water Supply ◽  
Large Scale ◽  
Public Water Supply ◽  
Chemical Contamination ◽  
The Public

scholarly journals Using Isotopic and Hydrochemical Indicators to Identify Sources of Sulfate in Karst Groundwater of the Niangziguan Spring Field, China

Water ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 390
Author(s):  
Chunlei Tang ◽  
Hua Jin ◽  
Yongping Liang
Keyword(s):  
Water Supply ◽  
Mine Drainage ◽  
Coal Mines ◽  
Karst Groundwater ◽  
Sample Collection ◽  
Piper Diagram ◽  
Urban Sewage ◽  
Water Demands ◽  
Abandoned Coal Mines ◽  
Systematic Sample

Karst groundwater in the Niangziguan spring fields is the main source to supply domestic and industrial water demands in Yangquan City, China. However, the safety of water supply in this region has recently suffered from deteriorating quality levels. Therefore, identifying pollution sources and causes is crucial for maintaining a reliable water supply. In this study, a systematic sample collection for the karst groundwater in the Niangziguan spring fields was implemented to identify hydrochemical characteristics of the karst groundwater through comprehensive analyses of hydrochemistry (piper diagram, and ion ratios,) and stable isotopes (S and H-O). The results show that the karst groundwater in the Niangziguan spring fields was categorized as SO4·HCO3-Ca·Mg, HCO3·SO4-Ca·Mg, and SO4-Ca types. K+, Cl-, and Na+ are mainly sourced from urban sewage and coal mine drainage. In addition, SO42− was mainly supplied by the dissolution of gypsum and the oxidation of FeS2 in coal-bearing strata. It is noteworthy that, based on H-O and S isotopes, 75% of the karst groundwater was contaminated by acidic water in coal mines at different degrees. In the groundwater of the Niangziguan spring field, the proportions of SO42− derived from FeS2 oxidation were 60.6% (N50, Chengxi spring), 30.3% (N51, Wulong spring), and 26.0% (N52, Four springs mixed with water). Acid mine drainage directly recharges and pollutes karst groundwater through faults or abandoned boreholes, or discharges to rivers, and indirectly pollutes karst groundwater through river infiltration in carbonate exposed areas. The main source of rapid increase of sulfate in karst groundwater is acid water from abandoned coal mines.

scholarly journals Self-Reported Household Impacts of Large-Scale Chemical Contamination of the Public Water Supply, Charleston, West Virginia, USA

PLoS ONE ◽  
2015 ◽  
Vol 10 (5) ◽  
pp. e0126744 ◽  
Author(s):  
Charles P. Schade ◽  
Nasandra Wright ◽  
Rahul Gupta ◽  
David A. Latif ◽  
Ayan Jha ◽  
...  
Keyword(s):  
West Virginia ◽  
Water Supply ◽  
Large Scale ◽  
Public Water Supply ◽  
Chemical Contamination ◽  
The Public

Алгоритм оценки степени физического износа структурно сложных объектов ВКХ с применением риск-ориентированного подхода

2019 ◽  
pp. 45-49
Author(s):  
V. Grachev ◽  
N. Kurysheva ◽  
O. Plyamina ◽  
V. Lobkovskiy ◽  
E. Nefedova
Keyword(s):  
Water Supply ◽  
Preventive Measures ◽  
Public Water Supply ◽  
Negative Consequences ◽  
Regulatory Documents ◽  
Physical Deterioration ◽  
Indicator Framework ◽  
Sanitation Systems ◽  
Assessment Procedures ◽  
Water Supply And Sanitation

Проведенный анализ современных нормативноправовых документов и практики оценки физического износа структурно сложных объектов водопроводноканализационного хозяйства показал, что современные методы оценки не учитывают особенности этих объектов. Выявлены факторы, влияющие на структуру показателей оценки физического износа по основным группам и элементам объектов водопроводноканализационного хозяйства. На их основе разработан алгоритм оценки физического износа объектов с применением рискориентированного подхода для трех уровней: объект, технологические элементы объекта (сооружения), функциональные элементы в составе сооружений (здания, оборудование). Использование алгоритма позволяет разработать рекомендации по корректировке периодичности и частоте проведения мониторинга показателей уровня физического износа объектов централизованных систем водоснабжения и водоотведения и их элементов. Практическое применение разработанного алгоритма будет способствовать внедрению современных подходов по управлению рисками, связанными с уровнем физического износа и оценкой вероятности потенциальных негативных последствий природного, антропогенного и другого характера. Внедрение алгоритма позволит также устанавливать уязвимые области и проводить предупредительные мероприятия в отношении возникновения угрозы нарушения обязательных требований, в том числе меры по снижению рисков (техникотехнологическое обновление зданий, сооружений, оборудования). Это необходимо для объективного и обоснованного планирования капитального ремонта, восстановления и развития объектов водопроводноканализационного хозяйства и их элементов.The paper analyzes current regulatory documents and experience in the field of assessing the deterioration of structurally complex water supply and sanitation facilities. The paper shows that modern assessment procedures do not take into account any features of such objects. The paper identifies factors that affect the indicator framework for assessing the physical deterioration of the main groups and components of water supply and sanitation facilities. Based on these factors, the paper proposes an algorithm for assessing the physical deterioration of facilities using a riskoriented approach for three levels: an object itself, its engineering components (facilities), and their functional elements (buildings, equipment). The paper indicates that the use of the algorithm would provide for developing recommendations for adjusting the frequency of monitoring indicators of the physical deterioration level of facilities of public water supply and sanitation systems and their elements. The implementation of the developed algorithm would contribute to the successful introduction of advanced approaches to managing risks associated with the level of physical deterioration and assessing the probability of potential negative consequences of natural, anthropogenic, and other origins. The introduction of the algorithm would also allow identifying vulnerable areas and taking preventive measures against the threat of violation of mandatory requirements including measures for reducing risks (technical and engineering renovation of buildings, facilities, equipment). This is required for objective and substantiated planning of overhaul, restoration, and development of water supply and sanitation facilities and their components.

An investigation into the possible links between shigellosis and hepatitis A and public water supply disconnections

Public Health ◽  
1997 ◽  
Vol 111 (3) ◽  
pp. 179-181
Author(s):  
L Fewtrell ◽  
D Kay ◽  
M Wyer ◽  
G O’Neill
Keyword(s):  
Water Supply ◽  
Hepatitis A ◽  
Public Water Supply
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