Performance Indicators for Water Supply Systems

1999 ◽  
pp. 148-178 ◽  
Author(s):  
Helena Alegre
Keyword(s):  
Water Supply ◽  
Performance Indicators ◽  
Water Supply Systems ◽  
Supply Systems

scholarly journals WATER LOSS IN SMALL SETTLEMENTS / VANDENS NUOSTOLIAI MAŽOSE GYVENVIETĖSE

2014 ◽  
Vol 6 (4) ◽  
pp. 444-450 ◽  
Author(s):  
Mindaugas Rimeika ◽  
Anželika Jurkienė
Keyword(s):  
Water Supply ◽  
Water Loss ◽  
Performance Indicators ◽  
Water Supply Systems ◽  
Quality And Safety ◽  
Water Network ◽  
Small Water ◽  
Big Cities ◽  
Continuous Work ◽  
Supply Systems

The main performance indicators of a water supply system include the quality and safety of water, continuous work, relevant pressure and small water loss. The majority of foreign and local projects on reducing water loss have been carried out in the water supply systems of metropolitans; however, the specificity of small settlements differs from that of big cities. Differences can be observed not only in the development of infrastructure and technical indicators but also in the features of water consumption. The article presents the analysis of water loss formation and describes reduction measures in a small settlement. The conducted research defines that water loss in big cities is much smaller than that in small settlements. The major part of water used in small settlements is applied for agrarian purposes rather than for domestic needs. It has been found that water is employed for the irrigation of plants and livestock watering, which often is not accounted. Research also shows that slight (<0.2 m³/h) physical water loss (holes in the network) that occur in small settlements may compose up to 30% of all water supplied to the water network. Pagrindiniai vandens tiekimo sistemos efektyvumo rodikliai yra šie: vandens saugumas ir kokybė, nepertraukiamas darbas, tinkamas slėgis ir maži vandens nuostoliai. Absoliuti dauguma užsienio ir šalies vandens nuostolių mažinimo projektų buvo atlikta didmiesčių vandentiekiuose, tačiau mažų gyvenviečių specifika gerokai skiriasi nuo didžiųjų miestų. Skiriasi ne tik infrastruktūros lygis, techniniai rodikliai, bet ir vandens vartojimo ypatumai. Straipsnyje analizuojami vandens nuostolių susidarymas ir galimi mažinimo būdai mažose gyvenvietėse. Nustatyta, kad rajono centruose susidarantys vandens nuostoliai yra gerokai mažesni nei mažose gyvenvietėse. Didžioji dalis gyvenvietėse vartojamo vandens skirta augalams laistyti ir gyvuliams girdyti, o ne gyventojų buitiniams poreikiams tenkinti. Nustatyta, kad vanduo, naudojamas laistyti ir gyvuliams girdyti, dažnai nėra įtraukiamas į apskaitą. Nustatyta, kad mažų gyvenviečių vandentiekio tinkle susidarantys maži (<0,2 m³/h) fiziniai nuostoliai (pvz., dėl skylių tinkle), gali sudaryti daugiau nei 30 % viso į tinklą tiekiamo vandens kiekio.

Performance indicators for small- and medium-sized water supply systems: a review

2014 ◽  
Vol 22 (1) ◽  
pp. 1-40 ◽  
Author(s):  
Husnain Haider ◽  
Rehan Sadiq ◽  
Solomon Tesfamariam
Keyword(s):  
Performance Evaluation ◽  
Water Supply ◽  
Performance Indicators ◽  
Evaluation System ◽  
Minimum Cost ◽  
Evaluation Process ◽  
Primary Objective ◽  
Operating Conditions ◽  
Water Supply Systems ◽  
Supply Systems

Water supply systems (WSSs) are one of the most important and expensive core public infrastructures. The primary objective of a water supply utility is to have this valuable asset operate at its maximum possible efficiency with minimum cost throughout its design period. To achieve this objective, the first step is to evaluate the existing efficiency of all the components of the WSS using suitable performance indicators (PIs). Various agencies and organizations worldwide have developed detailed performance evaluation frameworks including several indicators to comprehensively cover all the aspects (e.g., physical asset, staffing, operational, customer satisfaction, economical) of the WSSs. Most of these frameworks and indicators have been developed for large-sized WSSs. Small- and medium-sized water supply systems (SM-WSSs) have specific performance-related issues, ranging from difficulties in collecting the data required to use the available systems of PIs to lack of skilled personnel and financial resources for efficient operations. A comprehensive review of the literature has been carried out to assess the suitability of reported performance evaluation systems for SM-WSSs in terms of their simplicity (easy and simple data requirements) and comprehensiveness (i.e., all the components of a WSS). This review also evaluates the individual PI with respect to its understandability, measurability, and comparability (i.e., within and across utility comparisons). On the basis of this detailed review, a conceptual performance evaluation system for SM-WSSs, consisting of a list of PIs grouped into their respective categories, has been proposed. The proposed system provides a stepwise approach, starting the performance evaluation process with the most significant and easy to measure PIs for small-sized WSSs and moving to a relatively complex set of indicators for SM-WSS depending on the availability of resources and specific operating conditions.

scholarly journals Comparative Analysis and Benchmarking of Water Supply Systems and Services in Central and Eastern Europe

Proceedings ◽  
2018 ◽  
Vol 2 (11) ◽  
pp. 597 ◽  
Author(s):  
Tomas Suchacek ◽  
Alexandru Aldea ◽  
Jedrzej Bylka ◽  
Ivana Marko ◽  
Ladislav Tuhovcak
Keyword(s):  
Comparative Analysis ◽  
Water Supply ◽  
Eastern Europe ◽  
Performance Indicators ◽  
Central And Eastern Europe ◽  
Water Utilities ◽  
Water Supply Systems ◽  
The Czech Republic ◽  
And Control ◽  
Supply Systems

This paper deals with a comparative analysis and benchmarking of drinking water supply systems and water supply sector in the selected countries of Central and Eastern Europe. These include the Czech Republic, Poland, Romania, and Slovakia. The article provides an analysis of existing benchmarking systems in each country. Methods of supervision and control over the assessment and the functioning of the organizations responsible for the assessment and benchmarking of water utilities are also described. Comparative analysis for the selected performance indicators is carried out. The units, methods of data collection and processing were described.

A review of performance indicators for real losses from water supply systems

1999 ◽  
Vol 48 (6) ◽  
pp. 227-237 ◽  
Author(s):  
A. O. Lambert ◽  
T. G. Brown ◽  
M. Takizawa ◽  
D. Weimer
Keyword(s):  
Water Supply ◽  
Performance Indicators ◽  
Water Supply Systems ◽  
Supply Systems ◽  
Real Losses

Application of performance indicators to control losses - results from the Portuguese water sector

2003 ◽  
Vol 3 (1-2) ◽  
pp. 127-133 ◽  
Author(s):  
R. Cunha Marques ◽  
A.J. Monteiro
Keyword(s):  
Water Supply ◽  
Performance Indicators ◽  
Economic Value ◽  
Water Utilities ◽  
Water Supply Systems ◽  
Water Losses ◽  
Portuguese Water ◽  
Accounting Control ◽  
The One ◽  
Supply Systems

More and more the problem of water losses and leakages in water supply systems is becoming important in the management of water utilities. No matter how developed a country is, there is a growing and general awareness of this subject. Among the several motivations that contribute to this growing concern are, without doubt, the shortage of resources availability in several water supply systems on the one hand and, on the other hand, the economic value of the volume of water lost. Portugal is no exception. In recent years, there has been some dynamism in the sector in the accounting, control, leakages and loss detection, mainly in the biggest systems. This paper presents an approach to the control of water leakages and losses through the setting of performance indicators that allow the evaluation and characterization of the management entity for this aspect. Some results of those indicators will also be described here, as well as their application to several Portuguese water utilities and the assessment methodology of the results obtained. This paper also puts into evidence expressions and correlation curves between the different indicators and factors that directly or indirectly interfere in the result of the water utilities’ performance with relation to the water losses and leakages presented.

Assessment of performance indicators for different sizes of water supply systems in Minas Gerais, Brazil

2021 ◽  
Vol 193 (12) ◽  
Author(s):  
Otávio Henrique Campos Hamdan ◽  
Marcelo Libânio ◽  
Veber Afonso Figueiredo Costa
Keyword(s):  
Water Supply ◽  
Performance Indicators ◽  
Minas Gerais ◽  
Water Supply Systems ◽  
Assessment Of Performance ◽  
Supply Systems
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