sewer system survey Articles

  • Sewer-Flow Survey Project

    Environmontel Ltd Supply of HydroLog4 time-series database and flow data processing system for sewer-flow survey projects Environmontel Ltd, an established flow-survey company based in Worcester, selected HydroLog4 as their sewer-flow survey information system for use by survey teams on short-term drainage-area surveys and other longer-term monitoring projects. The ...

  • An artificial intelligence approach for optimizing pumping in sewer systems

    This paper presents details of a fuzzy logic system developed for the control of sewer pumping stations for energy costs savings. This is part of an ongoing collaborative project between Anglian Water and the University of Sheffield. The model rules and operation are developed for one representative pumping station in order to enable the identification of potential benefits and inhibitors to ...


    By IWA Publishing

  • Drainage-Area Survey Data Management

    Northumbrian Water Supply of HydroLog4 time-series database and reporting system for drainage area studies Northumbrian Water ordered HydroLog4 as a replacement data management and reporting system for time-series data collected during the short and long-term survey work by internal crews throughout the water company's wastewater management business. ...

  • Pipeline Zooming for a Comprehensive Infrastructure Survey.

    Time, budget and resources often keep a municipality from maintaining comprehensive, up-to-date information on water and sewer pipeline conditions. Without a complete understanding of their infrastructures, municipal supervisors cannot properly prioritize and schedule maintenance activities. As a result, emergencies—backups, collapses, and overflows—happen unexpectedly, and must be dealt with on ...


    By Envirosight LLC

  • Using InfoNet to manage a planned sewer maintenance program

    OnSite is a framework contractor for Severn Trent Water, one of the ten water service companies of England and Wales. The company is one of the project coordinators for the utility’s planned sewer maintenance programme and one of three framework contractors working in very close collaboration on its CCTV survey and sewer cleansing program. In addition the company undertakes man-entry surveys, ...


    By Innovyze

  • Delivering an Enhanced Sewer Condition Prioritization Process

    SCREAM™ is a sewer and manhole condition assessment tool developed by CH2MHill. It has been built into Wallingford Software’s InfoNet asset management solution as one of the standard choices for sewer and manhole condition grading. There is emphasis across the collections systems industry worldwide for sewer condition prioritization methods and manhole condition ranking. Although currently the UK ...


    By Innovyze

  • New simple methodology to estimate degree of dilution in CSO discharges from sewer systems

    INTRODUCTION Performance measures relating to combined sewer overflow (CSO) operation are widely known to have limitations. In the UK they have evolved from simplistic settings based on six times dry weather flow, to Formula A (Government, 1970) and eventually to more complex consent conditions of spill volumes, spill frequency and water quality. Performance measures related to the quality of ...


    By Innovyze

  • Developing an Effective Sanitary Sewer Management Plan Utilizing Innovative GIS Solutions

    As California’s wastewater collection system infrastructure begins to age, the need to proactively manage this valuable asset becomes increasingly important. The first step in this process is to have a reliable reporting system for Sanitary Sewer Overflow (SSOs). Although there are some data systems to record spills and various spill-reporting requirements have been developed, inconsistent ...

  • Quantifying Sub-Surface Discharges from Individual Sewer Defects

    ABSTRACTThe California Regional Water Quality Control Board, Santa Ana Region (RWQCB) required wastewater collection agencies in Orange County to report discharges from “pipe breaks, leaking sewer pipes and joints, and other subsurface discharges of wastewater.” The Orange County Sanitation District (OCSD), in conjunction with a research team from University of California, Irvine (UCI), developed ...

  • Combined Sanitary Sewer Overflows (SSO) - Performance Focus: Fats, Oil and Grease (FOG) Reductio Case Study

    In-PIpe Technology Company, Inc., drastically accelerates the natural degradation of fats, oil and grease (FOG) in the collection system, thereby removing blockages and occlusions from the pipe and significantly reducing the occurrence of FOG-related sewer overflows, as well as the requisite equipment and manpower required for the physical removal of these blockages. Since In-Pipe started ...

  • Reducing Ruptured Reputations – Assessment Tools Reduce Risk of Failure on Sewer Force Mains

    A ruptured sewer pipe can attract a lot of unwanted attention, even when it happens on private property. Last year, hours before celebrities were to arrive at the Golden Globes Awards show at the Beverley Hills Hotel, a reputed sewer pipe burst, spewing a mess of wastewater on the red ...


    By Pure Technologies

  • WDRs: Developing an Effective Sanitary Sewer Management Plan Utilizing Innovative GIS Solutions

    As California’s wastewater collection system infrastructure begins to age, the need to proactively manage this valuable asset becomes increasingly important.  The first step in this process is to have a reliable reporting system for Sanitary Sewer Overflow (SSOs). Although there are some data systems to record spills and various spill-reporting requirements have been developed, inconsistent ...

  • Pipeline Replacement without System Shutdown

    ABSTRACT According to one estimate there is over 4.2 billion feet of wastewater pipeline in the United States. The nation’s sanitary sewer system is increasing in size and the existing infrastructure is aging. Currently, there are almost 20,000 municipal collection systems building and maintaining these critical pipelines. A good portion of the pipe conduit is under attack by one or more of ...

  • Improving the Operations and Maintenance of Wastewater Infrastructure with Knowledge Management Systems

    ChallengesFort Campbell, Kentucky is an active military facility that serves a dynamic population of up to 50,000 military and civilian personnel. The collection system assets include a 5 MGD treatment plant, 79 pump stations, 100 miles of gravity and force main sewers, and over 100 miscellaneous structures including oil/water separators and grease traps. Like many communities – this ...

  • Problem Solving with InfoNet 1: A single system for asset data storage and retrieval

    Untitled Document This is the first in a series of articles about InfoNet, Wallingford ...


    By Innovyze

  • Water System Infrastructure – A View of Where We Are, Where We Could Go and How We Can Get There.

    This is the first of several essays that are aimed at focusing attention on water and sewer infrastructure systems. In this essay, the current state of city and regional systems are examined, the current state of the industry will be examined next, investigating some of the tools, resources and technologies that are available, today. Beyond that, the final essay in this series will look at the ...


    By H2bid, Inc.

  • ACO Water management systems play key SUDS role at new brick works

    Mansfield Brick's new £10 million manufacturing facility in Nottinghamshire has used a wide range of ACO Water Management products to complete a self-contained SUDS system that imposes no additional load on the main sewer network. Designed to withstand heavy plant and vehicle traffic as well as potentially high levels of debris carried in the surface water run-off, the system provides ...


    By ACO Group

  • SMF4 case study 2

    Sewer Misconnection Survey Date: March 2010 Location: Edgebaston Birmingham UK Purpose: To test the application of the SMF4 portable fluorimeter in the detection and quantification of organic pollution from faecal matter in Surface water Sewers. Background STS was invited independently by the Environment Agency and Severn ...


    By Safe Training Systems Ltd

  • Misconnections – Birmingham UK case study

    Background STS was invited independently by the Environment Agency and Severn Trent water to carry out a series of monitoring operations in an area which had a history of issues arising from the misconnection of waste water into a “clean” surface water sewer system. Traditionally surveys of this type are carried out using contractors who are tasked to lift manhole covers ...


    By Safe Training Systems Ltd

  • Going Green: How to Incorporate Stakeholders’ Values for Sustainability

    Making decisions about large public works projects requires careful consideration of project objectives, criteria for meeting those objectives, and metrics for comparing alternatives. To successfully implement a project, the objectives and criteria must match the values and perspectives of stakeholders. Stakeholders and public interest groups are increasingly calling for sustainability to serve ...

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