Keeping Water Out of Your Storage System

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  Oct. 4, 2017

  Climate changes, as well as land cover changes, affect the flow regimes in streams. Understanding the contributions of climate variables and land cover changes on low flows will help planners and decision makers to improve water resources management. An approach which uses data driven artificial neural networks (ANNs) is proposed in this study. Land cover, rainfall, snow and temperature were used as inputs to the ANN model. In this approach, an index called relative strength effect was used to assess the contributi...

• Spatiotemporal variation of bacterial water quality and the relationship with pasture land cover

  Sep. 25, 2017

  Pathogens are a major cause of water quality impairment and public health concern world-wide. In the United States, each state is tasked with developing water quality standards (WQS) to protect the designated use(s) of waterbodies. Several streams in the Illinois River Watershed in northwest Arkansas are currently listed as impaired due to elevated levels of pathogens. Our objective was to evaluate Escherichia coli (E. coli) numbers at 29 stream sites, compare these numbers to the applicable WQS, and investigate...

• Queensland: a water sensitive future

  Aug. 3, 2017

  South East Queensland (SEQ) is planning a water sensitive future for the region and its cities. In order to the transition to be successful, it is necessary to develop an implementation plan. This plan aims is to identify a common vision that focuses on the transition pathway and mechanisms the region needs, to become a water sensitive city. SEQ already has many elements in line with the concept of water sensitive city: The region is rich in waterways; There is a good understanding of water quality as a...

• Application of a water balance adapted to intermittent water supply and flat-rate tariffs without ...

  Jun. 19, 2017

  Establishing the water balance developed by the International Water Association (IWA) is a worldwide applied approach to determine and analyse water losses in water distribution systems (WDS). The water balance covers those parts of a WDS within the responsibility of the water utility. Water losses occurring ‘before’ a customer meter are at the expense of the utility, while water lost or wasted ‘after’ the meter is paid for by the customer. This applies to systems where customer metering is in place and/or...

• Modelling and optimization of land use/land cover change in a developing urban catchment

  Mar. 3, 2017

  The impacts of land use/cover change (LUCC) on hydrological processes and water resources are mainly reflected in changes in runoff and pollutant variations. Low impact development (LID) technology is utilized as an effective strategy to control urban stormwater runoff and pollution in the urban catchment. In this study, the impact of LUCC on runoff and pollutants in an urbanizing catchment of Guang-Ming New District in Shenzhen, China, were quantified using a dynamic rainfall-runoff model with the EPA Storm...