scholarly journals Environmental risk factors for bacteriological contamination in rural drinking water wells in Samson Cree Nation

2018 ◽  
Vol 45 (2) ◽  
pp. 99-104
Author(s):  
Fraser Mah ◽  
Travis Hnidan ◽  
Evan Davies ◽  
Ania Ulrich
Keyword(s):  
Drinking Water ◽  
First Nations ◽  
Rural Areas ◽  
Water Source ◽  
Total Coliform ◽  
Coliform Bacteria ◽  
Drinking Water Source ◽  
Historical Factors ◽  
Water Wells ◽  
Bacteriological Contamination

Bacteriological contamination of drinking water wells poses a challenge to many rural areas of First Nations communities in Alberta that rely on wells as the primary drinking water source for large proportions of their populations. Here we reviewed available historical data for the Samson Cree Nation near Maskwacis, Alberta (formerly Hobbema), to identify linkages between various environmental and historical factors and the risk of contamination by Escherichia coli and total coliform bacteria. Increased bacterial counts were found to be associated with a peak in total precipitation and surface water flow following a two to four month lag period. Wells installed by contractors operating at an earlier period in time were also found to be at greater risk than more recent installations. These findings can be used to better characterize the risk of contamination, which will assist in tailoring remedial actions to address chronic or recurring bacteriological presence in wells.

Analysis of Legal System and Public Policy on Rural Water Source in China

2012 ◽  
Vol 518-523 ◽  
pp. 4126-4129
Author(s):  
Zhen Hua Liu
Keyword(s):  
Public Policy ◽  
Drinking Water ◽  
Water Supply ◽  
Legal System ◽  
Rural Areas ◽  
Water Conservation ◽  
Water Source ◽  
Drinking Water Source ◽  
Rural Water ◽  
Laws And Regulations

Source of water is the beginning of rural drinking water projects, safe water source is the key to rural drinking water safety. Status of rural drinking water source in china and laws and regulations on rural water conservation were analyzed. The population of centralized water supply accounts for 51% of the total population in rural areas in 2008, centralized water supply 49%. Groundwater source accounts for 57% of the population of centralized water supply projects in rural areas in 2008, surface water sources 43%. China has a relatively sound legal system of drinking water source, including basic law, general law, administrative regulations, local regulations.The paper draws a conclusion that sources of drinking water in rural areas is mainly groundwater, water conservation is short of specific laws and regulations and not suitable for rural area,it is necessary to improve laws and regulations on rural water conservation, government must assume responsibility for rural water conservation, especially financial investment and public policy support.

scholarly journals Groundwater as a Source of Drinking Water in Southeast Asia and the Pacific: A Multi-Country Review of Current Reliance and Resource Concerns

Water ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1605 ◽  
Author(s):  
Naomi Carrard ◽  
Tim Foster ◽  
Juliet Willetts
Keyword(s):  
Drinking Water ◽  
Low Income ◽  
Rural Areas ◽  
Urban Areas ◽  
Critical Role ◽  
Water Source ◽  
Groundwater Resource ◽  
Drinking Water Source ◽  
Water Services ◽  
Sustainable Services

Groundwater is widely acknowledged to be an important source of drinking water in low-income regions, and it, therefore, plays a critical role in the realization of the human right to water. However, the proportion of households using groundwater compared with other sources is rarely quantified, with national and global datasets more focused on facilities—rather than resources—used. This is a significant gap in knowledge, particularly in light of efforts to expand water services in line with the inclusive and integrated agenda of the Sustainable Development Goals. Understanding the prevalence of groundwater reliance for drinking is critical for those involved in water services planning and management, so they can better monitor and advocate for management of water resources that supports sustainable services for households. This paper contributes data that can be used to strengthen the integration of resource considerations within water service delivery and inform the work of development partners supporting this area. We approach this issue from two perspectives. Firstly, we collate data on the proportion of households using groundwater as their primary drinking water source for 10 Southeast Asian and Pacific nations, finding an average of 66% (range of 17–93% for individual countries) of households in urban areas and 60% (range of 22–95%) of households in rural areas rely on groundwater for drinking. Together, these constitute 79% of the total population across the case study countries. Secondly, we review current and emerging groundwater resource concerns within each country, using a systems thinking approach to assess how groundwater resource issues influence household water services. Findings support the case for governments and development agencies to strengthen engagement with groundwater resource management as foundational for achieving sustainable water services for all.

scholarly journals Quality of Ground and Surface Water of Rajshahi City Area for Sustainable Drinking Water Source

2010 ◽  
Vol 2 (3) ◽  
pp. 577 ◽  
Author(s):  
M. T. Rasul ◽  
M. S. Jahan
Keyword(s):  
Drinking Water ◽  
Surface Water ◽  
Ground Water ◽  
River Water ◽  
Oxygen Demand ◽  
Water Source ◽  
Total Coliform ◽  
Drinking Water Source ◽  
City Area ◽  
Rajshahi City

An investigation was carried out to assess the water qualities and extents of impurities in groundwater and surface water (Padma river water) in Rajshahi City area. Water samples from a total of 330 tube wells and five spots of the river Padma were analysed for physicochemical, biological and hydrological parameters with standard methods. Among all considered parameters of ground water, concentrations of arsenic, iron, manganese, total hardness, and total coliform and faecal coliform bacteria were found above the permissible limits for potable water. In case of the river Padma, biochemical oxygen demand, chemical oxygen demand, total coliform, faecal coliform and suspended solids exceeded permissible limits. Both ground and river water must be treated properly before distribution for drinking purpose. Finally, the Padma is recommended as the most sustainable drinking water source for Rajshahi City Corporation area. Keywords: Rajshahi City; Ground water; Surface water; Quality control. © 2010 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.DOI: 10.3329/jsr.v2i3.4093                 J. Sci. Res. 2 (3), 579-586 (2010) 

scholarly journals Assessment of microbial contamination of drinking water with total coliform bacteria and Escherichia coli in the Bitola region

2019 ◽  
Vol 65 (2) ◽  
pp. 23-32
Author(s):  
Marta Nedelkova ◽  
Angela Delova ◽  
Tanja Petreska Ivanovska ◽  
Zoran Zhivikj ◽  
Lidija Petrushevska-Tozi
Keyword(s):  
Escherichia Coli ◽  
Drinking Water ◽  
Water Supply ◽  
Rural Areas ◽  
Membrane Filtration ◽  
Total Coliform ◽  
Coliform Bacteria ◽  
Quality And Safety ◽  
E Coli ◽  
Total Coliform Bacteria

The aim of this paper is to analyze the presence of Escherichia coli (E. coli) and total coliform bacteria (CB) in the drinking water of urban and rural areas of the Bitola region, as indicators for water quality and safety. All water in urban area is chlorinated, while at the same time the water in rural areas is non-chlorinated. The samples were analyzed according to the international standard method of membrane filtration MKC EN ISO 9308-1:2015. In all examined samples of drinking water in urban area, presence of E. coli and CB was not detected as a result of the disinfection of the water. On contrary, in all tested samples of the water from the rural water supply, presence of E. coli and CB was confirmed. Significant increase in coliform bacterial counts probably weather-related was found in the period from April to September. In addition, in the third quarter including July, August, and September, in many measurements, E. coli as an indicator of faecal contamination was identified in drinking water. In accordance with these findings and in order to provide safe drinking water, it is necessary to modernize the water supply for the population in rural areas, to disinfect permanently the drinking water and to apply regular laboratory controls which are a basic pre-condition. Otherwise, inappropriate management of the water systems can cause serious decrease in the quality and safety of the drinking water associated with an increased risk of appearance of the infectious diseases in people and hydric epidemic. Key words: drinking water, Escherichia coli, coliform bacteria, membrane filtration

scholarly journals Observations on Groundwater Contamination with Nitrogen Compounds: A Case Study from Medias town, Sibiu County

2017 ◽  
Vol 74 (1) ◽  
pp. 15
Author(s):  
Maria Alexandra HOAGHIA ◽  
Erika LEVEI ◽  
Cecilia ROMAN ◽  
Dumitru RISTOIU
Keyword(s):  
Drinking Water ◽  
Anthropogenic Activities ◽  
Water Source ◽  
Nitrogen Compounds ◽  
Drinking Water Source ◽  
Negative Effects ◽  
Water Wells ◽  
Study Results ◽  
High Concentrations ◽  
Maximum Allowable Concentrations

Worldwide, the groundwater (water well and public spring) is used as drinking water source. The water quality is important due to the possible negative effects on the consumers’ health, especially for infants. Nitrogen compounds (NO2-, NO3-, NH4+) are present as natural components of the nitrogen cycle and their presence in the groundwater is ubiquitous. But, due to the anthropogenic activities high concentrations of nitrogen compounds are release into the groundwater, thereby the chemical compounds concentrations exceed the maximum allowable concentrations (MACs). The purpose of the present study was to assess the content of nitrogen compounds in groundwater, namely private water wells and public springs used as drinking water sources by the Medias town population. The study results show alarming NO2- and NO3- concentrations; the NO3- concentrations exceed 5 times the MAC and NO2- concentrations exceed3 times the MAC. 

scholarly journals Characteristics of Refill Drinking Water Depot and Bacteriology Evaluation in Covid-19 Period

2021 ◽  
Vol 1 (1) ◽  
pp. 579-594
Author(s):  
Herniwanti, Herniwanti ◽  
Endang Purnawati Rahayu ◽  
Yen Purwawinata Mohan
Keyword(s):  
Drinking Water ◽  
Water Source ◽  
Initial Step ◽  
Health Department ◽  
Coliform Bacteria ◽  
Drinking Water Source ◽  
Raw Water ◽  
E Coli ◽  
Quality Of Water ◽  
Dug Wells

Accessing the characteristics of Refill Drinking Water Depot (DAMIU) is the initial step in mapping the quality of water to be processed into drinking water. Therefore, this study aims to map the characteristics and bacteriology of DAMIU raw water at the Koto Kampar Hulu sub-district to prevent COVID-19. This was a study conducted using a qualitative approach with 7 raw water samples. The bacteriology of Raw Water (E. Coli and Coliform) is an indicator of the required standards in line with the minister of health regulation No.32 of 2017. Furthermore, the results showed that 85% of the DAMIU raw water originated from drilling and dug wells. The distance to water sources was mostly <20 km. Bacteriological tests for E. Coli were consistent with the quality standards while 4 DAMIU sources contain Coliform bacteria due to poor hygiene. Hence, it is recommended that the health department, responsible for consumer protection and law enforcement, provide guidance and supervision to DAMIU entrepreneurs that failed to meet the requirements. Further PAMSIMAS, PHBS, and STMB programs as well as other technological innovations are needed to provide a drinking water source that is healthy, cheap, and protected from disease during the COVID-19 period.

scholarly journals Engineering hydrology of Kodku Khola Basin, Lalitpur, Nepal

1970 ◽  
Vol 10 ◽  
pp. 107-116
Author(s):  
Laxmi Devi Maharjan ◽  
Vishnu Dangol
Keyword(s):  
Drinking Water ◽  
Rural Areas ◽  
Urban Areas ◽  
Water Source ◽  
Drinking Water Source ◽  
Maximum Rainfall ◽  
Vast Number ◽  
Frequency Maximum ◽  
The Mean ◽  
The City

Not only in rural areas but also in urban areas, vast number of people lack access to safe drinking water. The city of Lalitpur is in severe deficit of drinking water for its population. Hydrological study of the Kodkhu Khola Basin near the Lalitpur City was carried out in pre-feasibility level. Rainfall data were analysed to estimate future rainfall trend that would determine the rainfall intensity, frequency, maximum and minimum rainfalls. The discharge of the river was estimated by float method. About 70% of flow in the river occurred in monsoon from June to September. The mean yearly rainfall of ten years of record was 1238 mm in the Khumaltar Station and 1494 mm in the Godawari Station. The intensity of the maximum rainfall in a day of each of ten years fell in the heavy category and most of the years fell in the normal year category. Maximum rainfall of 100 year's recurrence interval will have magnitude of 1595 mm. The discharge ranged from 17.35 m3/s to 56.94 m3/s in the upstream reaches. The amount of rainfall and discharge is thought to be sufficient for maintaining the reservoir for drinking water supply in Lalitpur city and the Kodku Khola is appreciable for the drinking water source.   doi: 10.3126/bdg.v10i0.1426 Bulletin of the Department of Geology, Tribhuvan University, Kathmandu, Nepal, Vol. 10, 2007, pp. 107-116

Global return flow ratio

2017 ◽  
Author(s):  
Chloé Meyer
Keyword(s):  
Drinking Water ◽  
Water Source ◽  
Return Flow ◽  
Drinking Water Source ◽  
Chemical Contamination ◽  
Flow Ratio ◽  
Piped Water ◽  
Dug Wells

Population using an improved drinking water source (piped water into dwellings, yards or plots; public taps or standpipes; boreholes or tubewells; protected dug wells; or protected springs and rainwater) that is located on premises and available when needed and which is free of faecal and priority chemical contamination. Basin Pollution Quality Waste

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