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  • 1.
    Dahlqvist, Peter
    et al.
    SGU Geological Survey of Sweden, Sweden.
    Sjöstrand, Karin
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy. Chalmers University of Technology, Sweden.
    Lindhe, Andreas
    Chalmers University of Technology, Sweden.
    Rosén, Lars
    Chalmers University of Technology, Sweden.
    Nisell, Jakob
    SGU Geological Survey of Sweden, Sweden.
    Hellstrand, Eva
    SGU Geological Survey of Sweden, Sweden.
    Holgersson, Björn
    SGU Geological Survey of Sweden, Sweden.
    Potential benefits of managed aquifer recharge MAR on the Island of Gotland, Sweden2019In: Water, ISSN 2073-4441, E-ISSN 2073-4441, Vol. 11, no 10, article id 2164Article in journal (Refereed)
    Abstract [en]

    The Island of Gotland (3000 km2), east of mainland Sweden, suffers from insufficient water availability each summer. Thin soils and lack of coherent reservoirs in the sedimentary bedrock lead to limited reservoir capacity. The feasibility of Managed Aquifer Recharge (MAR) is explored by identifying suitable areas and estimating their possible contribution to an increased water availability. MARis compared to alternative water management measures, e.g., increased groundwater abstraction, in terms of costs and water availability potential. Results from GIS analyses of infiltration areas and groundwater storage, respectively proximity to surface water sources and surface water storage were classified into three categories of MAR suitability. An area of ca 7700 ha (2.5% of Gotland) was found to have good local conditions for MAR and an area of ca 22,700 ha (7.5% of Gotland) was found to have moderate local conditions for MAR. These results reveal the MAR potential on Gotland. The water supply potential of MAR in existing well fields was estimated to be about 35% of the forecasted drinking water supply and 7% of the total water demand gap in year 2045. It is similar in costs and water supply potential to increased surface water extraction. © 2019 by the authors.

  • 2.
    Sjöstrand, Karin
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Decision support for assessing the socio-economic value of a regionalized water supply2016In: 2016 Annual Water Resources Conference, 2016Conference paper (Other academic)
  • 3.
    Sjöstrand, Karin
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Färghärdighet vid industritvätt1988Report (Refereed)
  • 4.
    Sjöstrand, Karin
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik, Rörcentrum.
    Ernits, Heiti
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Systemanalys.
    Kempe, Marcus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Elektricitet.
    Norefjäll, Fredric
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Systemanalys.
    Realtidssensorer för urbant dagvatten2014Report (Refereed)
  • 5.
    Sjöstrand, Karin
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik, Rörcentrum.
    Kärrman, Erik
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik, Urban Water Management.
    InnoVa – Innovationer i områden med vattenbrist2014Report (Refereed)
  • 6.
    Sjöstrand, Karin
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Kärrman, Erik
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Rosén, Lars
    Chalmers University of Technology, Sweden.
    Lång, Lars-Ove
    Chalmers University of Technology, Sweden.
    Blom, Lena
    Chalmers University of Technology, Sweden.
    Lindhe, Anders
    Chalmers University of Technology, Sweden.
    Decision-support for a sustainable regional water supply management2016In: The 10th Nordic Drinking Water Conference, 2016Conference paper (Other academic)
    Abstract [en]

    The provision of a safe drinking water is of primary importance in society and a prerequisite for public health and economic development. In order to secure a long-term, safe and reliable supply of drinking water, and to ensure a comprehensive and integrated water planning, the development of regional water supply plans is increasingly requested in Sweden. To implement the plans, the water utilities, regional planners and politicians need to make several complex decisions and prioritize between multifaceted strategic measures. There are, however, very few decision support tools adapted for water supply management on the regional level to aid the decision makers. In order to achieve a sustainable drinking water supply, socio-economic effects need to be carefully considered. Hence, this study focuses on the development of a decision support framework for assessing socioeconomic effects of strategic decisions and alternative water supply measures by adapting costbenefit analysis (CBA) and economic valuation techniques to a long-term and regional perspective. The Gothenburg region, with its newly presented regional water supply plan, serves as a case study for which five alternative measures are evaluated: (1) centralization of water supply production; (2) centralization of water supply organization; (3) shift of the main raw water intake from the river Göta älv, a raw water source exposed to a high contamination risk, to the cleaner water of lake Vänern; (4) maximization of groundwater usage; and (5) increased number of raw water resources. The effects of each alternative are identified through literature reviews, stakeholder workshops and dialogues with experts and policy makers. To assess the non-market costs and benefits of the alternative strategies, the benefit transfer method is used for adapting estimates from national and international valuation studies to the Gothenburg region. The monetized costs and benefits are then used to set up a longrun CBA to identify the best strategy from a social welfare perspective. The net present values (NPVs) of the alternative measures are estimated for three different discount rates (constant rates of 1.4 % and 3.5 % as well as a declining discount rate) and two different time periods (ranging to 2050 and 2100). Uncertainties concerning the NPVs are analyzed by means of statistical simulation (Monte Carlo), accounting for uncertainties in input data. For the Gothenburg region, the results show the effect of the various strategies and give a direct guidance on which measures are most favorable from a cost-benefit perspective. The case study results are then used to design a general decision support framework that allows for non-market valuations and economic and ecological tradeoffs under uncertainty, a novelty on the regional scale. In conclusion, it is expected that the results of this study will provide decision makers and regional planners with a framework of tools to improve their ability to make well-informed decisions and to ensure the society a safe and reliable water supply for generations to come.

  • 7.
    Sjöstrand, Karin
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Lindhe, Andreas
    Chalmers University of Technology, Sweden.
    Söderqvist, Tore
    Anthesis Enveco AB, Sweden.
    Dahlqvist, Peter
    Sveriges Geologiska Undersökning, Sweden.
    Rosen, Lars
    Chalmers University of Technology, Sweden.
    När vattentillgången brister2019Report (Other academic)
    Abstract [en]

    Access to good quality water in sufficient quantity is essential for people’s everyday life and for most businesses and economic sectors. However, water scarcity and drought are emerging as some of the most important global risks to society with both short-term and long-term effects on people, ecosystem services, biodiversity and the economic activities that depend on a reliable water supply. This is a global problem, and Sweden is not spared. The low precipitation and high summer temperatures that hit Sweden for three consecutive years between 2016 and 2018, caused a vastly reduced access to water and led to major consequences for the Swedish society.In most Swedish regions, however, there is usually more than enough water to meet the growing needs of society and at the same time maintain a good environmental status even during drought. But to ensure a long-term sustainable water supply, all parties, i.e. households, water-dependent businesses and authorities, need to take measures. Drought and water scarcity are challenges that do not only affect, or can be solved by, the municipal drinking water supply. Each and everyone who uses and is dependent on water, regardless of whether the water is supplied through public or private systems, is part of the problem and should therefore also be part of the solutions.This report provides information and material to help companies contribute to a better water situation in areas with low water availability. The report describes the water usage and water availability in Sweden today and how they are expected to change in the future. Incentives and driving forces for water savings are described as well as methods for identifying inefficient water usage and improvement measures. A review of studies from various countries provides information on challenges as well as good examples of water scarcity mitigation measures in various economic sectors. Examples of decision support methods that can be used to evaluate and prioritize between alternative measures are also described. Finally, potential implementation barriers are discussed and examples of policy instruments which can facilitate implementation of beneficial measures are given.

  • 8.
    Sjöstrand, Karin
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy. Chalmers University of Technology, Sweden.
    Lindhe, Andreas
    Chalmers University of Technology, Sweden.
    Söderqvist, Tore
    Anthesis Enveco, Sweden.
    Dahlqvist, Peter
    Geological Survey of Sweden, Sweden.
    Rosén, Lars
    Chalmers University of Technology, Sweden.
    Marginal Abatement Cost Curves for Water Scarcity Mitigation under Uncertainty2019In: Water resources management, ISSN 0920-4741, E-ISSN 1573-1650, Vol. 33, no 12, p. 4335-4349Article in journal (Refereed)
    Abstract [en]

    As water scarcity and drought become more common, planning to avoid their consequences becomes crucial. Measures to prevent the impact of new climate conditions are expected to be extensive, costly and associated with major uncertainties. It is therefore necessary that policymakers and practitioners in both the public and private sector can compare possible mitigation measures in order to make economically rational investment decisions. For this to be successful, decision-makers need relevant decision support. This paper presents a novel approach of constructing marginal abatement cost curves for comparing water scarcity mitigation measures while taking the underlying uncertainties into account. Uncertainties in input variables are represented by probability distributions and calculations are performed using Monte Carlo simulations. This approach is applied on the island of Gotland, one of the most water-stressed parts of Sweden, to provide the first marginal abatement cost curve in Europe for water scarcity mitigation in which municipal, agricultural, industrial and household measures are compared. The results show that the agricultural measure of on-farm storage has the greatest potential to increase water availability on the island. Among municipal measures, increased groundwater extraction and desalination offer the greatest potential, although desalination is almost 25 times more costly per cubic meter. The most cost-effective measure is linked to hot water savings in the hotel industry. The approach presented provides a quantitative visualization of the financial trade-offs and uncertainties implied by different mitigation measures. It provides critical economic insights for all parties concerned and is thus an important basis for decision-making.

  • 9.
    Sjöstrand, Karin
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy. Chalmers Univinersity of Technology, Sweden.
    Lindhe, Andreas
    Chalmers Univinersity of Technology, Sweden.
    Söderqvist, Tore
    Anthesis Enveco, Sweden.
    Rosen, Lars
    Chalmers Univinersity of Technology, Sweden.
    Cost-Benefit Analysis for Supporting Intermunicipal Decisions on Drinking Water Supply2019In: Journal of water resources planning and management, ISSN 0733-9496, E-ISSN 1943-5452, Vol. 145, no 12, article id 04019060Article in journal (Refereed)
    Abstract [en]

    Several countries promote a regionalization of the drinking water sector; however, few decision support tools are adapted to the intermunicipal level to aid in regional decisions. The aim of this paper is to describe and demonstrate a probabilistic cost-benefit analysis approach to assess the societal effects of regional water supply interventions to constitute support for decision makers. A special focus is given to the quantification of effects on consumers’ health, water supply reliability, and operation and maintenance costs. The uncertainties of the quantified values are represented by probability distribution functions and analyzed by means of Monte Carlo simulations. The proposed approach was demonstrated in the Göteborg region in Sweden, for which five alternative interventions were evaluated. In conclusion, the proposed approach facilitates the identification and prioritization of societal effects so that costs and benefits normally overlooked in evaluation processes can be explicitly considered and addressed. The paper provides a transparent handling of uncertainties and enables   a structured approach to improve decision makers’ ability in making informed choices on regional water supply alternatives.

     

  • 10.
    Sjöstrand, Karin
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy. Chalmers University of Technology, Sweden.
    Lindhe, Andreas
    Chalmers University of Technology, Sweden.
    Söderqvist, Tore
    Anthesis Enveco, Sweden.
    Rosén, Lars
    Chalmers University of Technology, Sweden.
    Sustainability assessments of regional water supply interventions – Combining cost-benefit and multi-criteria decision analyses2018In: Journal of Environmental Management, ISSN 0301-4797, E-ISSN 1095-8630, Vol. 225, p. 313-324Article in journal (Refereed)
    Abstract [en]

    To cope with present and future challenges, a growing number of water utilities in Sweden, Europe and elsewhere initiate various forms of inter-municipal cooperations creating a new regional level of drinking water governance. In order to reach viable decisions of alternative ways forward, there is an international consensus that sustainability needs to be addressed in water supply planning, design and decision-making. There are, however, few decision aids focusing on assessing the sustainability of inter-municipal cooperations and the inter-municipal policies and interventions that regional decision-makers are faced with. This paper presents a decision support model based on a combination of cost-benefit analysis and multi-criteria decision analysis for assessing the sustainability of regional water supply interventions, including formations of inter-municipal cooperations. The proposed decision support model integrates quantitative and semi-quantitative information on sustainability criteria. It provides a novel way of presenting monetized benefits and costs, capturing utilitarian aspects of alternative interventions, with non-monetized social and environmental effects, capturing aspects based in the deontological theories of moral ethics. The model is based on a probabilistic approach where uncertainties are defined by statistical probability distributions. A case study is used to exemplify and evaluate model application in decision situations regarding regionalization, (de)centralization, source water quality and redundancy. All evaluated alternatives were expected to contribute to a slightly improved social sustainability, whereas the results were more varying in the economic and environmental domains. A structured and transparent treatment of uncertainties facilitates a better understanding of the results as well as communication between decision-makers, stakeholders and the community.

  • 11.
    Sjöstrand, Karin
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut. Chalmers University of Technology, Sweden.
    Rosén, L.
    Chalmers University of Technology, Sweden.
    Kärrman, E.
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Blom, L.
    City of Gothenburg, Sweden.
    Lindkvist, J.
    Gothenburg Region, Sweden.
    Ivarsson, M.
    Enveco Environmental Economics Consultancy, Sweden.
    Lång, L.
    Geological Survey of Sweden, Sweden.
    Lindhe, A.
    Chalmers University of Technology, Sweden.
    Combining cost benefit analysis with multi criteria analysis for sustainability assessment of regional water supply policies2016In: Society For Risk Analysis Annual Meeting 2016, 2016Conference paper (Other academic)
    Abstract [en]

    The provision of safe drinking water is of primary importance in society and a prerequisite for public health and economic development. This provision is however threatened by a variety of risks due to e.g. climate change and societal development. To manage these risks the water utilities are facing complex decision situations. Today, decisions on costly investments are being made with limited knowledge of which choices are the most sustainable. In order to achieve a safe and sustainable water supply, a regional perspective on the environmental, social and economic effects of the decisions is increasingly promoted in Sweden. There are, however, few decision support tools adapted to the regional level. Hence, this study focuses on the development of a decision support framework for assessing the sustainability of risk reducing measures by adapting Cost-Benefit Analysis (CBA) and Multi Criteria Analysis (MCA) to a regional perspective. The Gothenburg region serves as a case study for which five measures are evaluated: (1) centralization of water supply production; (2) centralization of water supply organization; (3) shift of the main raw water source (4) maximization of groundwater usage; and (5) use of additional raw water sources. All measures aim to enhance safety by reducing risks. Uncertainties concerning the net present values are analyzed using statistical simulation (Monte Carlo). The CBA results are complemented with environmental and social effects in an MCA, including criteria such as intrinsic values, equity and health. The case study results are then used to design a decision support framework that allows for non-market valuations and economic and ecological tradeoffs under uncertainty, a novelty on the regional scale. In conclusion, it is expected that the results of this study will provide decision makers with a framework that can improve their ability to make well-informed decisions and ensure the society a safe water supply for generations to come.

  • 12.
    Sjöstrand, Karin
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik, Rörcentrum.
    Virgin, H
    Pirzadeh, P
    Thulin Olander, H
    Dahlqvist, P
    Sverige måste bli bättre på att kontrollera dricksvattnet2014In: Dagens Nyheter, no 2014-01-02Article in journal (Other (popular science, discussion, etc.))
  • 13.
    Sjöstrand, Karin
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik, Rörcentrum.
    Yarahmadi, Nazdaneh
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik, Rörcentrum.
    Kärrman, Erik
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik, Urban Water Management.
    Metod för val av vattenförsörjning i områden med vattenbrist: en handbok2014Report (Refereed)
  • 14.
    Willquist, Karin
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Förbrännings- och aerosolteknik.
    Björkmalm, Johanna
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Förbrännings- och aerosolteknik.
    Sjöstrand, Karin
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik, Rörcentrum.
    Lagerkvist, Anders
    Erixon, Robert
    Johansson, Björn
    Lundmark, Kent
    Hagemalm, Malin
    Liu, Jing
    Biological treatment toolbox for Swedish mine drainage2015Report (Refereed)
  • 15.
    Winberg, David
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Sjöstrand, Karin
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Bygg och Mekanik, Rörcentrum.
    Vattensprinkleranläggningar och kommunala vattenledningsnät - en vattendelare2015In: Brandposten, no 52, p. 10-Article in journal (Other academic)
  • 16.
    Winberg, David
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Sjöstrand, Karin
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Arnell, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Farestveit, Tomas
    Fire Sprinkler Systems- Capacity tests and Public Water Mains2016Report (Other academic)
  • 17.
    Winberg, David
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Sjöstrand, Karin
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Arnell, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Farestveit, Tomas
    Nordiska Brand AB.
    Vattensprinkleranläggningar - Kapacitetsprov och kommunala vattenledningsnät2016Report (Other academic)
    Abstract [en]

    The purpose of this project is to provide support to local municipalities and other stakeholders on how sprinkler installations connected to the water mains should be installed and maintained so that a high fire safety can be obtained without any inconvenience or disturbances to the municipal water supply. The report includes recommendations for how Swedish municipalities can manage applications for sprinkler connections, and how the sprinkler industry can handle the design, installation and maintenance to minimize the risk for drinking water quality problems.Key words:Sprinkler, public water mains, drinking water quality, backflow prevention, sprinkler pumps, capacity test.

1 - 17 of 17
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