Energy efficiency is currently a hot topic on all regional, national, and global stages. Accurate measurements on how energy is being used over a period of time can improve performance of the drinking water utility substantially and reduce energy consumption. Nevertheless, the drinking water industry does not have a specific benchmarking practice to evaluate its energy performance of the system. Therefore, there are no standards to compare energy use between water utilities that have a variety of system characteristics. The goal of this research is to develop quantitative approach to select energy benchmarking parameters of the water system, so the drinking water utilities can use those parameters to improve their energy efficiency. In addition to a typical benchmarking of drinking water utilities, the energy benchmarking can specifically compare energy efficiency of a utility with other utilities nationwide. The research developed a regression model based on the statistical representation of the energy use and descriptive characteristics of the drinking water utilities data throughout the U.S. Methodologies to eliminate singularity and multicollinearity from collinear survey dataset are discussed. The all possible regressions were chosen as parameters selection methodology to identify a subset of most significant parameters, i.e. system characteristics, that can mathematically correspond to energy use across different utilities. As a result, the energy benchmarking would be able to calculate the predicted total energy use of the system from given system characteristics. / Master of Science

Urban drinking-water supplies are still implicated as pathways for the transmission of waterborne disease. A move toward risk informed, proactive water system management has occurred over the past decade and is advocated in current international drinking water guidelines. Quantitative Microbial Risk Assessment (QMRA) is a tool with potential for aiding health risk management; however the refinement of scientific based practical methods to support that philosophy still requires development. This thesis focused on the water utility, its responsibility to manage microbial water safety, and how probabilistic QMRA may aid in developing management strategies. A framework for waterborne disease risk assessment from urban supply systems was derived and tested on an Australian case study. The main premise was that, in order for risk assessment outcomes to inform the management process, the steps should incorporate the concepts of risk variability, the explicit event conditions that can drive it, and that examination of QMRA sensitivity to various risk scenarios/model uncertainties is undertaken. The identified management uses were: (i) prioritising for attention issues hampering the system's ability to meet or the assessor's ability to interpret against (e.g. knowledge gaps about the system), a water quality health target; and (ii) identifying potential strategies or control points for addressing those issues. Additionally, rarely occurring, high impact, adverse fluctuations in treated water quality (and consumer infection risks), especially from source water contaminant "peaks", are highly, nearly totally, influential over the extent of risks averaged over longer, say annual, periods. As such, a case is made calling for widespread adoption of health targets that refer to tolerable consumer risks per exposure, rather than or as well as the current common practice of expressing targets in terms of risks from exposure over a year or lifetime. Doing so may provide incentive and opportunities for improved management, and the future derivation of specific microbial treatment or treated water quality targets, with a view toward protecting the community from extreme high risk periods associated with disease outbreaks.

The goal of this research was to maintain excellent water quality at reduced chemical operations cost. Chemical usage data at the Austin water treatment plants were examined by identifying trends and investigating suspected inefficiencies. The investigation consisted in jar test experiments, plant-scale experiments, and equilibrium modeling. Lime and ferric sulfate were suspected to be added inefficiently with respect to cost while the other treatment chemicals were assessed to be added efficiently. Lime was investigated in greater depth than ferric sulfate because ferric sulfate was better characterized in its effect on finished water quality within the range of interest. The goal of lime addition is to remove hardness from the water by a process called lime softening. Hardness removal decreases corrosion in transmission lines and prevents deposition of unwanted solids in household appliances. Additionally, lime softening aids in particle removal and disinfection-by-product precursor reduction. The efficiency of lime addition was evaluated based on settled water pH and causticity goals, which serve as the operating parameters for the water treatment plants. The most efficient lime softening occurs when multiple softening goals are simultaneously achieved. First, the dissolved calcium concentration must achieve a minimum. Second, the dissolved magnesium concentration must be reduced by at least 10 mg/L as CaCO₃. Third, total alkalinity must be preserved at its maximum concentration while also achieving excellent hardness removal. Fourth, natural organic matter (NOM), which serves as a precursor for disinfection-by-products, must be removed sufficiently to achieve DBP reduction goals. Finally, the turbidity in the effluent from the settling basin must be below 2.0 NTU. Through the chemical investigation of lime based on existing scientific literature, computer modeling, jar test experiments, and full-scale testing, it was determined that the optimal condition operating condition for lime softening was a settled water pH range from 10.0 - 10.1. / text

Urban drinking-water supplies are still implicated as pathways for the transmission of waterborne disease. A move toward risk informed, proactive water system management has occurred over the past decade and is advocated in current international drinking water guidelines. Quantitative Microbial Risk Assessment (QMRA) is a tool with potential for aiding health risk management; however the refinement of scientific based practical methods to support that philosophy still requires development. This thesis focused on the water utility, its responsibility to manage microbial water safety, and how probabilistic QMRA may aid in developing management strategies. A framework for waterborne disease risk assessment from urban supply systems was derived and tested on an Australian case study. The main premise was that, in order for risk assessment outcomes to inform the management process, the steps should incorporate the concepts of risk variability, the explicit event conditions that can drive it, and that examination of QMRA sensitivity to various risk scenarios/model uncertainties is undertaken. The identified management uses were: (i) prioritising for attention issues hampering the system's ability to meet or the assessor's ability to interpret against (e.g. knowledge gaps about the system), a water quality health target; and (ii) identifying potential strategies or control points for addressing those issues. Additionally, rarely occurring, high impact, adverse fluctuations in treated water quality (and consumer infection risks), especially from source water contaminant "peaks", are highly, nearly totally, influential over the extent of risks averaged over longer, say annual, periods. As such, a case is made calling for widespread adoption of health targets that refer to tolerable consumer risks per exposure, rather than or as well as the current common practice of expressing targets in terms of risks from exposure over a year or lifetime. Doing so may provide incentive and opportunities for improved management, and the future derivation of specific microbial treatment or treated water quality targets, with a view toward protecting the community from extreme high risk periods associated with disease outbreaks.

Access to safe and sufficient drinking water and adequate sanitation are now recognized as basic human rights. One Millennium Development Goal is to reduce by half the proportion of people without access to safe drinking water and basic sanitation by 2015. However, ensuring sustainability of existing and new services is considered to be one of the major challenges for the water sector in the years to come. In India, in addition to service expansion, existing water service quality has been observed to be deteriorating over recent years. There is therefore an equally urgent need to address sustainability and improvement of service quality to the presently served population. In this low-income country, where water utilities are unable to recover even the service costs of operations and minor maintenance through user charges, there is a need to determine ways and means to be able to maintain a cost-effective service to consumers. For such a capital intensive service these ways have to include not only the introduction of efficiency measures but also the long-term planning of capital maintenance, that is the maintenance of the fixed assets upon which services depend. Water utilities in high-income countries have been using various fixed asset management techniques to improve asset operational efficiency, to plan capital maintenance and to demonstrate their ability to maintain and improve service to their customers. This study explores the viability of the application of asset management techniques and their potential contribution towards improving water service provision in urban centres in India. Following a literature review, a generic asset management model for a low-income country water utility was developed and then applied in the water utility serving Jaipur, Rajasthan to assess the viability of this adaptation. Having identified strengths and weaknesses during this fieldwork a revised model was proposed, including distinct phases of asset management/data intensity, which could be used as a generic approach in large urban centres in India. Following consultations with prospective users in six States, the study showed that it is feasible to take a first step towards asset management at low cost but this will require a change in the management approach. The study identified lack of relevant data as a key factor influencing an effective and comprehensive application of a generic asset management model. The study concludes that the proposed phased asset management models can contribute to improving serviceability for customers; however the concern that remains is the willingness of the organisation to adapt to the necessary changes.

The sustainability of municipal drinking water services in the Niger Delta region of Nigeria requires that its water utilities enhance their resilience to a range of risks posed by extreme weather events. Excellence in managing such risks is essential, not only to the bottom line and reputation of the utilities, but also to the wellbeing and prosperity of the people they serve and the preservation of nature in order to sustain ecosystem services. In the context of this study, organisational resilience has been defined as the adaptive deployment of the utility s assets and structures within its continua of inter-dependences to improve and sustain performance even in the face of repeated perturbations. On the other hand, vulnerability is defined as the utility s inability to withstand adverse stress based on limited or constrained capacity to adapt hence creating pathways through which risk impacts the utility. This definition of vulnerability is in tandem with those that argue that the key parameters of vulnerability are the stress to which a system is exposed, its sensitivity, and its adaptive capacity. In view of this, and also based on the findings of the study, the study notes that utility management could be a complex and challenging task, especially, in a multi-risk delta environment where extreme events are intense and frequent. Utility managers can become veterans of risks by dissipating, more than ever before technical competence, watershed/ecosystem awareness, social engagement skills and conceptual ability. The latter includes an understanding of how the complexities of the upstream and downstream environment impacts on the utility s internal environment and operations. The diffusive nature of risk makes every risk a potential high impact risk and the understanding of this, is the key to a resilient organization. Risk analysis and management in water utilities should aim to limit the diffusion of risks across streams in order to retard vulnerability. Utility resilience options will need to vary depending on climate related risks to each system, utility management goals, legislation, local and national water management strategies and finance. Utilities in the Niger delta needs to fully understand that they operate close to the edge by virtue of being below sea level and should cultivate a keen awareness of the consequences of flooding and saltwater intrusion, and the importance to manage them amongst others. The study has shown that there is need now, more than ever before for increased revenue generation, elimination of wastes/inefficiencies, financial investment and strategic management of water services operations in the study area if residents and the unborn generation are to be guaranteed of safe and adequate drinking water.

M. Tech. (Business Administration, Faculty of Management Sciences), Vaal University of Technology / Organisations need employees who are willing to go beyond the requirements of the job to contribute to the organisation’s effectiveness. An evolving trend in the organisational behaviour literature indicates that job satisfaction (JS) and organisational commitment (OC) are attitudes that have a major impact on organisational outcomes such as productivity, job performance, turnover intentions and organisational citizenship behaviour (OCB). Although the relationship between the aforementioned constructs is considered important, there is a paucity of research about the relationship between these constructs in the context of the water utility company. The primary objective of this study was to investigate the impact of organisational commitment and job satisfaction on organisational citizenship behaviour at the water utility company in Gauteng. A quantitative research approach and a survey-based descriptive research method were used to achieve the primary objective. A structured questionnaire was issued to 400 randomly sampled respondents. Furthermore, means and factor analysis were performed to determine the level of job satisfaction, organisational commitment and organisational citizenship behaviour of employees and to establish the underlying factors of the constructs respectively. Additionally, a correlation analysis was conducted to establish the strength and direction of the relationship between the factors. Finally, a regression analysis was performed to confirm the predictive relationship between factors. The findings of this study showed a positive correlation between affective commitment, indebted obligation and moral imperative; JS and OCB; and no predictive relationship was observed between continuance commitment and OCB. Based on the findings, it was recommended that JS should be improved through mechanisms such as job-fit, job enrichment and career advancement. Furthermore, performance-related pay and mentorship programmes should be introduced to improve employees’ organisational commitment. Finally, recognition should be given to employees to encourage them to maintain their willingness to display citizenship behaviours.

Tegucigalpa, the capital of Honduras, has experienced an unsatisfied water demand during the last three decades. The state owned water utility in charge of the water supply of the country, SANAA, has faced this deficit by providing an intermittent water supply. The intermittent water supply has increased the gap between the rich and the poor, who cannot afford water storage facilities. Theories explain water scarcity either by low precipitation or by lack of investment in water structures. This thesis investigates the applicability of both explanations by quantifying the annual precipitation in the sub catchments with water supply potential for Tegucigalpa, and identifying the problems which caused the lack of investment into the water infrastructure. The analysis concluded that even if the annual precipitation is abundant, it is not evenly distributed in time and in space. Furthermore, it is argued that the financial limitations which hindered the lack of investment in water structures originated in the low tariffs imposed, and to the practices of the patronage system. / QC 20111207

Yes / A subsurface chamber transceiver system and associated propagation channel link budget considerations for an underground wireless sensor system (UWSS) are presented: the application was a sewerage system for a water utility company. The UWSS operates over the GSM850/900, GSM1800/1900 and UMTS bands in order to operate with the standard public mobile phone system. A novel antenna was developed to minimize path loss from the underground location: a folded loop type, which is small enough to fit conveniently inside a utility manhole access chamber while giving adequate signal strength to link to mobile base stations from such a challenging environment. The electromagnetic performance was simulated and measured in both free space and in a real manhole chamber. An experimental test bed was created to determine the return loss and received signal strength with different transceiver positions below the manhole chamber access cover. Both numerical and experimental results suggested an optimum position of the unit inside the manhole, combining easy access for maintenance with viable received signal strength. This confirmed that the characteristics were adequate for incorporation in a transceiver designed to communicate with mobile base stations from underground. A field trial confirmed the successful operation of the system under severe conditions. / This work was supported partially by Yorkshire Innovation Fund, IETG Ltd. Contract, Research Development Project (RDP) and the European Union’s Horizon 2020 research and innovation programme under grant agreement H2020-MSCA-ITN-2016 SECRET-722424.

La question des résistances à la mise en œuvre des programmes d’action publique de l’État fait partie des questions de recherche peu étudiées. L’idée défendue tout au long de la thèse est que la notion de résistance territorialisée permet d’expliciter les logiques qui guident la mise en œuvre des programmes d’action publique. Notre analyse prend pour étude l’appropriation locale des réformes de modernisation des services d’eau potable. Ces réformes d’inspiration néolibérale apparues dans les années 1980 font l’objet de bilans intermédiaires mitigés et de critiques concernant leur efficacité. Le cas d’étude retenu est celui de l’agglomération grenobloise. Notre travail repose sur une enquête de terrain menée pendant cinq ans dans le cadre de notre activité salariée auprès d’une cinquantaine de services d’eau potable. Notre thèse s’articule en deux parties et quatre chapitres. La première partie s’intéresse au contenu des réformes de modernisation et aux résistances territorialisées qu’elles engendrent. La seconde partie propose d’approfondir la compréhension des résistances territorialisées en appréhendant le service d’eau comme un système territorial complexe qui s’oppose à la logique des réformes. Le premier chapitre de la thèse analyse les réformes de modernisation. D’une part, nous expliquons l’origine et le contenu des réformes et, d’autre part, nous proposons une méthode prospective d’aide à la décision permettant d’évaluer leurs effets économiques et sociaux sur les services d’eau. Le deuxième chapitre rend compte de l’application de deux réformes, mesure l’ampleur des résistances et les qualifie. La première réforme étudiée concerne la création d’indicateurs de performance des services d’eau potable. La seconde consiste en la transformation de l’usager du service d’eau en consommateur. Notre étude montre que les résistances sont nombreuses et variées et produisent des défaillances dans la gouvernance du secteur. Le troisième chapitre présente une analyse historique qui restitue le processus de construction territorialisée des services d’eau potable dans l’agglomération grenobloise. Nous mettons en lumière le rôle déterminant des facteurs territoriaux et nous montrons qu’historiquement, pour ce qui est de la régulation, l’Etat n’a été qu’un acteur parmi d’autres peu capable de contraindre formellement l’action des services d’eau. Enfin, la solution proposée par l’État pour répondre aux problèmes de modernisation est analysée et critiquée dans le quatrième chapitre. Cette solution consiste à transférer la compétence eau potable aux Établissements Publics de Coopération Intercommunale (EPCI) à fiscalité propre. La thèse met en évidence que cette solution peut aboutir à des résistances territoriales fortes au sein des services d’eau pouvant faire échec à la mise en place d’une gestion unifiée de l’eau à l’échelon intercommunal. Cependant, nous montrons que paradoxalement les résistances territoriales peuvent être génératrices de processus d’innovation sociale sans être nécessairement incompatibles avec certains objectifs des réformes de modernisation. Dans ces cas, des modèles de gestion de l’eau ad hoc peuvent émerger et se révéler particulièrement adaptés aux enjeux contemporains. Ces résultats de recherche nous conduisent à défendre l’intérêt d’une évolution de l’action publique hydrique vers des politiques territoriales pluralistes. / The subject of resistances to the implementation of State public action programs is a topic that has been seldom studied. The idea defended throughout this thesis is that the notion of territorialized resistance makes it possible to clarify the logic guiding the implementation of programs of public action. Our analysis examines the local appropriation of reforms of modernization in drinking water services. These reforms, influenced by neo-liberalism, appeared in the 1980s and have been met with mixed reviews and criticisms as to their effectiveness. The case study we have chosen here is the Grenoble agglomeration. Our work is based on field surveys carried out during five years of salaried activity around roughly fifty drinking water services. Our thesis is divided into two parts and four chapters. The first part focuses on the content of modernization reforms and the territorialized resistances that they create. The second part aims to deepen the understanding of territorialized resistances by perceiving the service of water as a complex territorial system that resists the logic of reforms.Our first chapter analyzes the modernization reforms. We explain the origin and the content of the reforms and also propose a method of informing decisions that would enable assessment of their economic and social effects on water services. The second chapter focuses on the application of two reforms, measuring the scope of resistances to them and examining their character. The first reform studied concerns the creation of performance indicators for drinking water services. The second reform consists of the transformation of water users into consumers. Our study demonstrates that the resistances are multiple and varied, and that they produce lapses in the governance of the sector. The third chapter presents a historical analysis that retraces the process of territorialized construction of drinking water services in the Greater Grenoble area. We highlight the determinative role of territorial factors. We also show that, historically, in terms of regulation, the state has only been one actor among others and that it has little capacity to formally constrain the action of water services. Finally, the fourth chapter analyzes and criticizes the solution that the State has proposed to respond to problems of modernization. That solution involves transferring the obligation to provide potable water to the Public Institutions of Inter-municipal Cooperation (EPCI). The thesis demonstrates that this solution may lead to strong territorial resistances within water services, with the potential to cause a failure to establish unified management of water at the supra-municipal level. However, we show that paradoxically, territorial resistances can also generate processes of social innovation that are not necessarily incompatible with the objectives of modernization reforms. In these cases, ad hoc models for the management of water can emerge that are particularly suited to contemporary challenges.The results of this research lead us to advocate the evolution of public water action towards pluralist territorial policies.