baseline water quality data Articles

  • Baseline groundwater quality in unconventional oil and gas fields

    In recent years, expansion of unconventional oil and gas production has prompted significant interest in potential impacts on drinking water resources. In many cases, water quality investigations rely on access to landowner water wells to develop baseline data prior to drilling; respond to spills, complaints, or incidents; or evaluate potential impacts due to drilling, completion, hydraulic ...


    By IWA Publishing

  • Application of water quality indices to define surface water quality in Tehran

    Tehran is one of the capitals of the world that is not situated around a river, therefore surface water discharges into a network of natural streams and even some artificial canals. Owing to the lack of sewerage system, part of the sewage runs to the network of streams without any control. The aim of this work is to identify a baseline for the water quality, which will then help policy-makers and ...


    By Inderscience Publishers

  • OVA5000 used to gather river quality data in Greece

    Cogent Environmental, in collaboration with its Greek partner, has recently completed a successful installation of one of its online heavy metal analysers, the OVA5000, in a remote location in the Amvrakikos Kolpos region of Greece. Cogent Environmental’s capabilities Cogent Environmental Ltd specialises in the development of online systems for monitoring heavy meals, ...

  • Water quality – water main renewal planner (Q-WARP): development and application

    The impact of deteriorating pipes on water quality (WQ) in the distribution network has not been consistently taken into account in decision making related to pipe renewals. In this paper, a detailed modeling approach based on fuzzy cognitive maps is developed using fuzzy rule-based models and fuzzy measures theory to investigate potential of WQ (physical, chemical, and biological) failure in ...


    By IWA Publishing

  • Changes in the water quantity and quality of the Euphrates river are associated with natural aspects of the landscape

    It has been argued that dam construction and irrigation projects in Turkey and Syria would diminish the flow of the Euphrates River and increase salinity levels. However, previous studies have not systematically defined the baseline changes in the quantity and quality of the river water. In this study, we associate variations in flow quantity and quality of water with natural aspects. We ...


    By IWA Publishing

  • Monitoring Environmental Quality

    ' In order to determine the effectiveness of actions to improve environmental quality it is necessary to be able to measure relevant environmental parameters at a level of detail which is accurate enough to distinguish the anticipated changes. However, the establishment and maintenance of monitoring systems is time-consuming and expensive and therefore the scale of such systems needs to be kept ...


    By The World Bank

  • Water quality of lowland, permeable Chalk rivers: the Frome and Piddle catchments, west Dorset, UK

    This paper provides a baseline interpretation of extensive hydrochemical characteristics of UK Chalk catchments based on the Frome/Piddle (west Dorset), a major component of the LOCAR (Lowland Catchment Research) programme. It examines a wide range of chemical determinands using data from two long-term (1979–2000) river water monitoring sites. The water quality of the Frome and Piddle is very ...


    By IWA Publishing

  • Toxicity Identification Evaluation (TIE) as a Tool for Water Quality Management

    Whole effluent toxicity (WET) testing has evolved into a critical element of many National Pollutant Discharge Elimination System (NPDES) permits issued to both industrial and municipal dischargers. Over 6,500 dischargers to both fresh and salt waters are required to conduct toxicity tests to determine if their effluent might be potentially toxic to organisms in the receiving system. While ...


    By AECOM

  • Water recreation and illness severity

    The health endpoint of prior studies of water recreation has been the occurrence of gastrointestinal (GI) illness. This dichotomous measure fails to take into account the range of symptom severity among those with GI illness, and those who develop GI symptoms but who do not satisfy the definition of GI illness. Data from two US cohort studies were used to assess use of ordinal and ...


    By IWA Publishing

  • Catchment process affecting drinking water quality, including the significance of rainfall events, using factor analysis and event mean concentrations

    To ensure the protection of drinking water an understanding of the catchment processes which can affect water quality is important as it enables targeted catchment management actions to be implemented. In this study factor analysis (FA) and comparing event mean concentrations (EMCs) with baseline values were techniques used to asses the relationships between water quality parameters and linking ...


    By IWA Publishing

  • Water monitoring commences in mines of West Africa

    As Sierra Leone looks to attract a new wave of mining investment in order to boost its economic profile, bringing water mine management standards in line with global best practices has become a priority. Government officials, academia, general citizens and companies have all become committed to improving standards with regards to water management in mining. As a key player in regulation ...


    By Aquaread Limited

  • Assessing protozoan risks for surface drinking water supplies in Nova Scotia, Canada

    Protozoa, such as Cryptosporidium parvum and Giardia lamblia, pose a human health risk when present in drinking water. To minimize health risks, the Nova Scotia Treatment Standards for surface water and groundwater under the direct influence of surface water require a 3-log reduction for Giardia cysts and Cryptosporidium oocysts. This study ...


    By IWA Publishing

  • Strategies for Managing the Lakes of the Rotorua District, New Zealand

    The Rotorua district in New Zealand contains 12 nationally important lakes. Environment Bay of Plenty (EBOP), which has the responsibility of managing the quality of these lakes, set a routine monitoring program for these lakes and adopted the method of Burns et al. (1999, 2000) to analyse the data and calculate a numeric Trophic Level Index (TLI) value for each. In 1994, the district community ...


    By EarthSoft, Inc

  • Surface Water Monitoring - Case Study

    Safe operation of a Water Treatment Plant (WTP) requires careful monitoring of the water supply influent to the plant, as a guard for any substances entering the treatment works that could negatively impact treated water quality in the distribution system. One aspect of water quality that has recently garnered more attention from authorities and utilities is Natural Organic Matter (NOM), which ...


    By MANTECH Inc.

  • Effectiveness of a Sediment Time Critical Removal Action – PCB Reduction in Fish Tissue, Surface Water and Sediment via Wet Excavation

    Documenting successful remediation of polychlorinated biphenyl (PCB)‐contaminated sediments is limited; potentially due to inadequate monitoring methods, complexities associated with the environment, and selected remedial techniques. At some sites, absence of appropriate baseline and post‐removal monitoring limits proper evaluation of remedial efficacy. Accurate interpretation of interactions ...


    By John Wiley & Sons, Ltd.

  • McClellan AFB comparison of 6 no-purge groundwater samplers

    This report describes the activities and results of a field demonstration of six different diffusion and grab groundwater sampling devices at the former McClellan Air Force Base (McClellan), located in Sacramento, California. Analytical results from these samplers are compared to ‘baseline’ analytical results from samples collected using conventional (low-flow and three-casing-volume purge) ...


    By EON Products Inc.

  • Improving Water Quality - A Review of the Mississippi River Basin Healthy Watersheds Initiative (MRBI) To Target U.S. Farm Conservation Funds

    This paper provides an assessment of the USDA’s Mississippi River Basin Healthy Watersheds Initiative (MRBI), a promising new approach to achieving cleaner water in agriculturally dominated watersheds in the United States. The initiative concentrates a portion of taxpayer-supported conservation funds in high-priority, targeted watersheds, which we found to be a better strategy than the ...

  • 5 Sobering realities about global water security

    Some people say that water is the oil of the 21st Century. If only water were that simple. Water is very complicated. It’s affected by large-scale issues like climate change and globalization. International commerce moves virtual water (the water it takes to grow or produce a product) from ...

  • Pilot of BACTcontrol at Aigües de Barcelona - Case Study

    MicroLAN just started (Febr. 2017) to work under WP10 of Aquavalens with Aigües de Barcelona and CETaqua. This WP aims to obtain data on the occurrence of waterborne pathogens in different water types and implement and test the microbiological methods and tools for risk management in large water systems. The team consists of: Claudia Puigdomenech Serra David Baquero ...

  • A systematic review and meta-analysis of the effects of extreme weather events and other weather-related variables on Cryptosporidium and Giardia in fresh surface waters

    Global climate change is expected to impact drinking water quality through multiple weather-related phenomena. We conducted a systematic review and meta-analysis of the relationship between various weather-related variables and the occurrence and concentration of Cryptosporidium and Giardia in fresh surface waters. We implemented a comprehensive search in four databases, ...


    By IWA Publishing

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