waterway monitoring Articles

  • Developing a public information and engagement portal of urban waterways with real-time monitoring and modeling

    Waterways can contribute to the beauty and livelihood of urban areas, but maintaining their hydro-ecosystem health is challenging because they are often recipients of contaminated water from stormwater runoff and other discharges. Public awareness of local waterways’ health and community impacts to these waterways is usually poor due to of lack of easily available information. To improve ...


    By IWA Publishing

  • Effects of hydrodynamically rough grassed waterways on dissolved reactive phosphorus loads coming from agricultural watersheds

    Received for publication October 5, 2007. A modified type of grassed waterway (GWW) with large hydrodynamic roughness has proven ability to reduce sediment load and surface runoff under conditions where best management practices on the delivering fields reduce sediment inputs that could otherwise damage the grass cover. It is unknown how such a GWW affects the loading of surface runoff with ...

  • Waterways and ponds contaminated with pulp & paper PCBs are contained & dewatered using Geotube container, providing an economical environmental solution - Case Study

    Abstract: Polychlorinaled biphenyls (PCBs) were unknowingly generated in ihe waste of some of the pulp and paper systems, a known carcinogen in animals and a probable carcinogen in humans. PCBs are stable, man-made compounds. They absorb heat and do not easily break down. Because of these properties, they have been widely used in electrical equipment, hydraulic fluids, fire retardants, ...

  • Oil on Water Monitoring

    Northern Ireland Water operate a number of potable water plants around Lough Erne and the River Derg, these waterways are extremely popular with tourists and are used for pleasure crafts of various sizes, from jetskis to fully fitted 6 berth cruisers. These watercraft create an ongoing risk of floating oil from poorly maintained engines, as the watercraft have access to within 10 metres of the ...


    By Partech (Electronics) Ltd.

  • IntelliServe Alarming System Improves Monitoring and Data Efficiency

    Indianapolis, IN - Like most American cities, Indianapolis had been facing increased scrutiny from residents about water quality issues. The U.S. EPA and state environmental agencies were calling for Indiana’s 105 cities with combined sewers to minimize or eliminate raw sewage overflows into local waterways. These overflows often occur after a quarter-inch or more of rain. In response, the ...

  • Real-time Water Monitoring Solution for Queensland case study

    Customer: ConfidentialApplication: Water monitoringBackground: Department of Environment and Heritage Protection (DEHP) are responsible for managing the health of the environment to protect Queensland’s unique ecosystems, including its landscapes and waterways, as well as its native plants ...


    By Ecotech Pty Ltd

  • Stevens-Connect Helps Florida DEP Monitor Water Resources and Plan for the Future

    The Florida Department of Environmental Protection (FDEP), in conjunction with several other State agencies, recently launched a new data monitoring program to provide insights into many Florida waterways. With the objective of easily sharing water and weather data between State and Federal agencies and with the general public, FDEP chose to utilize Stevens-Connect system to process, display, ...

  • San Juan Island well production and tank level monitoring case study

    San Juan Island is a popular resort destination whose population fluctuates with the season and the arrival of Orca whales and salmon runs. To get to the island, you must first drive an hour north of Seattle to the city of Anacortes. From there you take a two-hour ferry ride through a 130 island group to arrive at the 20 mile San Juan Island, which is at the waterway entrance to Puget Sound. Bob ...


    By Mission Communications, LLC

  • Monitoring the aquatic toxicity of mosquito vector control spray pesticides to freshwater receiving waters

    Pesticides are applied to state and local waterways in California to control insects such as mosquitoes, which are known to serve as a vector for West Nile Virus infection of humans. The California State Water Resources Control Board adopted a National Pollutant Discharge Elimination System General Permit to address the discharge of pesticides to waters of the United States resulting from ...


    By John Wiley & Sons, Ltd.

  • Environmental Risk Assessment of compost prepared from salvinia, egeria densa, and alligator weed

    Approximately 70,000 m3 of salvinia (Salvinia molesta) was removed from the Hawkesbury-Nepean River, New South Wales (NSW), Australia, during 2004. This study assessed the risks associated with applying compost prepared from aquatic weeds (AWC) to land, namely, survival and spread of aquatic and terrestrial weeds, eutrophication of waterways, accumulation of heavy metals and phytotoxicity. The ...

  • Biofuels effluent, does it exceed regulatory limits?

    The US Environmental Protection Agency (EPA), as well as other regulatory agencies around the world, have established limitation guidelines for discharges of “oily wastes” from facilities utilizing any type of oil and grease in their manufacturing process. However, recently several biodiesel plants in the US have been fined for illegally discharging vegetable-based oil and grease and polluting ...


    By Spectro Scientific

  • Collini metal processing plant

    Introduction The submerged membrane bioreactor plant at Collini galvanic industries in the West of Austria is a fine example of process optimization in a complex industrial environment. The plant is owned and operated by Collini and is now in its 3rd year treating wastewater from a metal processing facility. It is sited in an industrial estate and discharges into a small waterway in an ...


    By Kubota Membrane

  • Comparative evaluation of runoff and water quality using HSPF and SWMM

    Stormwater pollution is the untreated contaminated water that drains into natural waterways from land uses within an urban catchment. Several studies have demonstrated the deterioration of water quality in receiving bodies of water caused by stormwater runoff. The data have reported that urban runoff play primary roles in degrading water quality in adjacent aquatic systems. The accurate ...


    By IWA Publishing

  • Online discharge measurement with OTT SLD

    Background For the economic management of the waterways between Elbe and Oder it is essential to know the discharge of these rivers at defined locks. The authority for water and navigation (WSA) in Lauenburg operates hydrological stations for the measurement of water level and discharge to effectively regulate the water flow at the locks in Plau and Malliß ...

  • Confined disposal facilities: History and trends

    ABSTRACT Confined disposal facilities with filter layers have been used for disposal of dredged sediments for decades. Recent assessment of the environmental risk of contaminants in sediments has resulted in the use of lined confined disposal facilities. A case history outlines a contaminated sediment disposal facility designed with geosynthetics. Trends indicate more stringent requirements for ...


    By CETCO

  • Seasonal water quality vs. flow relationships in a small regulated stream

    The relationship of a water quality constituent with respect to flow measured at a stream monitoring station can give valuable information about the watershed and in-stream processes about the constituent in question. Seasonal dependency patterns often reveal relationships which would be unnoticed if all data are treated together. The aim of this study is to examine water quality constituent ...


    By Inderscience Publishers

  • Soil erosion in the riparian zone of the Three Gorges Reservoir, China

    The riparian zone of the Three Gorges Reservoir (TGR) has experienced substantial erosion that may severely deteriorate the reservoir ecosystem. To calculate soil erosion characteristics, field investigations have been conducted in the TGR area and 12 erosion-monitoring transects have been set in the middle TGR. The results showed that the dominating drive forces are water wave, gravity and ...


    By IWA Publishing

  • Multi‐media screening of contaminants of emerging concern (CECs) in coastal urban watersheds in Southern California (USA)

    To examine the occurrence and fate of contaminants of emerging concern (CECs) and inform future monitoring of CECs in coastal urban waterways, water, sediment and fish tissue samples were collected and analyzed for a broad suite of pharmaceuticals and personal care products (PPCPs), commercial/household chemicals, current use pesticides and hormones in an effluent‐dominated river and multiple ...


    By John Wiley & Sons, Ltd.

  • A simulation study of the accident risk in the Istanbul Channel

    The Istanbul Channel has a considerable amount of maritime traffic and is one of the most difficult-to-navigate waterways in the world. Ships are consequently prone to accidents. These accidents impose risks on the nearby population, property and the environment. Naturally, besides any adverse meteorological and geographical conditions, the increase in the volume of transit and local maritime ...


    By Inderscience Publishers

  • Online flow measurement

    Background The undershoot weir in Hohensaaten was built in 1913. It has three openings and regulates the discharge from the Oderbruch and from the Finow canal into the Hohensaaten-Friedrichsthaler-waterway. Moreover, it protects parts of the Oderbruch against Oder floods. The weir controls the waterlevels in the Havel-Oder-waterway and in the reach of Niederfinow- Hohensaaten. ...

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