APPLICATION OF WATER QUALITY MODELING TO REGULATING LAND DEVELOPMENT IN PROTECTED DRINKING-WATER-SOURCE AREAS: A CASE STUDY ON THE KAO-PING RIVER WATERSHED, TAIWAN

2013 ◽  
Author(s):  
Chun-hsu Lin and Te-thui Huang
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Land Development ◽  
Water Source ◽  
Water Quality Modeling ◽  
Drinking Water Source ◽  
River Watershed ◽  
Source Areas ◽  
Quality Modeling

scholarly journals A Systems Analysis Approach to Identifying Critical Success Factors in Drinking Water Source Protection Programs

2019 ◽  
Author(s):  
Hew Cameron Merrett ◽  
Wei Tong Chen ◽  
Jao Jia Horng
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Critical Success Factors ◽  
Success Factors ◽  
Water Source ◽  
Control Measures ◽  
Catchment Management ◽  
Drinking Water Source ◽  
Principle Components Analysis ◽  
Critical Success

The success of source protection in ensuring safe drinking water is centered around being able to understand the hazards present in the catchment then plan and implement control measures to manage water quality risk to levels which can be controlled through downstream barriers. The programs in place to manage source protection are complex sociotechnical systems involving policy, standards, regulators, technology, human factors and so on. This study uses System Theoretic Process Analysis (STPA) to analyze the operational hazards of a typical drinking water source protection (DWSP) program and identify control measures to ensure safe operations. To validate the results a questionnaire was developed and distributed to specialists in DWSP in Taiwan, Australia and Greece. Using Principle Components Analysis (PCA) of the questionnaire responses, the study identified four critical success factors (CSFs) for DWSP. The four factors identified are ‘Policy and Government Agency Support of Source Protection’, ‘Catchment Risk Monitoring and Information’, ‘Support of Operational Field Activities’ and ‘Response to Water Quality Threats’. The results of this study provide insight into the approach of grouping of source protection measures to identify a series of targeted CSF for operational source protection programs. Using CSF can aide catchment management agencies in ensuring that the risk level in the catchment is managed effectively and that threats to public health from drinking water are managed appropriately.

scholarly journals Self-Supply Service Level Assessment as Drinking Water Source in Bekasi City (Case Study: Jatiluhur, Sumur Batu, and Jatirangga Villages)

2021 ◽  
Vol 277 ◽  
pp. 04004
Author(s):  
Aprilia Harera ◽  
Gita Lestari Putri ◽  
Tim Foster
Keyword(s):  
Drinking Water ◽  
Water Source ◽  
Service Level ◽  
Water Systems ◽  
Water Sources ◽  
Drinking Water Source ◽  
Monitoring Method ◽  
Dug Wells ◽  
Monthly Survey

Drinking water sources derived from groundwater using selfsupply approaches are widely used in Bekasi City because only 26.8% of households are connected to the piped distribution. These self-supplied water systems can be assessed to determine how people choose a better drinking source. Therefore, this study aims to assess the service level attributes of self-supply, including accessibility, availability, and quality. A longitudinal monitoring method by means of a monthly survey to respondents was used to mens perceptions of taste, smell, color, availability, and safety. The results on both household and citywide scale showed boreholes were perceived to deliver a high service level. On the household scale, 93% of boreholes user got ‘high’ score for water service assessment, while dug wells were only 76%. During the 8 months survey, it was shown that 45% of respondents change their main source of drinking water from self-supply to other source for several reasons. Therefore, this study is expected to provide an overview related to the resilience of selfsupply drinking water for a certain period.

scholarly journals The Occurrence and Risks of Selected Emerging Pollutants in Drinking Water Source Areas in Henan, China

2019 ◽  
Vol 16 (21) ◽  
pp. 4109 ◽  
Author(s):  
Donghai Wu ◽  
Ying Zhou ◽  
Guanghua Lu ◽  
Kai Hu ◽  
Jingjing Yao ◽  
...  
Keyword(s):  
Drinking Water ◽  
Hazard Index ◽  
Source Area ◽  
Dry Weight ◽  
Water Source ◽  
Triphenylphosphine Oxide ◽  
Drinking Water Source ◽  
Uv Filters ◽  
Source Areas ◽  
Total Concentrations

The occurrence of organic micropollutants (OMPs) in aqueous environments has potential effects on ecological safety and human health. Three kinds of OMPs (namely, pharmaceuticals, ultraviolet (UV) filters and organophosphate esters (OPEs)) in four drinking water source areas in Henan Province of China were analyzed, and their potential risks were evaluated. Among 48 target chemicals, 37 pollutants with total concentrations ranging from 403.0 to 1751.6 ng/L were detected in water, and 13 contaminants with total concentrations from 326.0 to 1465.4 ng/g (dry weight) were observed in sediment. The aqueous pollution levels in Jiangang Reservoir and Shahe Water Source Area were higher than that in Nanwan Reservoir and Baiguishan Reservoir, while the highest total amount of pollutants in sediment was found in Baiguishan Reservoir. Compared with pharmaceuticals and UV filters, OPEs presented higher concentrations in all investigated drinking water source areas. The highest observed concentration was triphenylphosphine oxide (TPPO, 865.2 ng/L) in water and tripentyl phosphate (TPeP, 1289.8 ng/g) in sediment. Moreover, the risk quotient (RQ) analysis implies that the determined aqueous contaminants exhibited high risks to algae and invertebrates, whereas moderate risk to fish was exhibited. The health risk assessment of aqueous OMPs by means of the hazard index (HI) indicates that the risks to adults and children were negligible. These observations are expected to provide useful information for the assessment of water quality in drinking water sources in Henan, China.

scholarly journals Rainwater as an alternative drinking water source for the Chronic Kidney Disease Of Uncertain etiology (CKDu) prone areas: a case study for Girandurukotte, Sri Lanka

2020 ◽  
Vol 10 (3) ◽  
pp. 539-548
Author(s):  
V. M. Jayasooriya ◽  
V. M. M. Perera ◽  
S. Muthukumaran
Keyword(s):  
Water Quality ◽  
Chronic Kidney Disease ◽  
Drinking Water ◽  
Surface Water ◽  
Sri Lanka ◽  
Kidney Disease ◽  
Water Source ◽  
Drinking Water Source ◽  
Significant Difference ◽  
Uncertain Etiology

Abstract Chronic Kidney Disease of uncertain etiology (CKDu) is a fatal disease that causes death from kidney failure due to unknown risk factors and has already affected more than 400,000 people in the rural agricultural landscape (dry zone) of Sri Lanka. The major drinking source in Sri Lanka is groundwater and it is suspected that the pollution of groundwater sources due to agricultural means has a major impact on CKDu. The primary objective of this study is to determine whether rainwater can be used as an alternative safe drinking water source in Girandurukotte area, Sri Lanka, which is known to be an area endemic for CKDu. The physical, chemical, and biological analyses were performed to compare the water quality parameters of three water sources (groundwater, surface water, and rainwater) for Girandurukotte area. The most common storage tanks in polyethylene (PE) and ferrocement (FC) were compared to assess the influence of the material of rainwater tank on water quality. The results showed that there is a significant difference in rainwater in terms of water quality compared to groundwater and surface water. Rainwater in FC and PE tanks showed significant differences (p < 0.05) for some parameters however, they were still within accepted potable drinking water standards.

scholarly journals Impact of Climate Forecasts on the Microbial Quality of a Drinking Water Source in Norway Using Hydrodynamic Modeling

Water ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 527 ◽  
Author(s):  
Hadi Mohammed ◽  
Andreas Longva ◽  
Razak Seidu
Keyword(s):  
Drinking Water ◽  
Treatment Plant ◽  
Fold Increase ◽  
Water Source ◽  
Water Quality Modeling ◽  
Climate Projections ◽  
Drinking Water Source ◽  
Local Climate ◽  
E Coli ◽  
The Future

This study applies hydrodynamic and water quality modeling to evaluate the potential effects of local climate projections on the mixing conditions in Lake Brusdalsvatnet in Norway and the implications on the occurrence of Escherichia coli (E. coli) at the raw water intake point of the Ålesund water treatment plant in the future. The study is mainly based on observed and projected temperature, the number of E. coli in the tributaries of the lake and projected flow. The results indicate a gradual rise in the temperature of water at the intake point from the base year 2017 to year 2075. In the future, vertical circulations in spring may occur earlier while autumn circulation may start later than currently observed in the lake. The number of E. coli at the intake point of the lake is expected to marginally increase in future. By the year 2075, the models predict an approximately three-fold increase in average E. coli numbers for the spring and autumn seasons compared to current levels. The results are expected to provide the water supply system managers of Ålesund with the information necessary for long-term planning and decisions in the protection of the drinking water source. The method used here can also be applied to similar drinking water sources in Norway for developing effective risk management strategies within their catchments.

Sign in / Sign up

Export Citation Format

Share Document