sanitary sewer mains Articles

  • Latah creek sanitary sewer main repair, Spokane, Washington

    A SEEMINGLY simple kid’s prank of throwing rocks and other material down a storm drain resulted in a major emergency repair job to prevent the collapse of a 42-in. sanitary sewer main in Spokane, Washington. In a short period of time, a group of kids completely blocked an 18-in. pipe leading to the city’s combined sanitary/ storm drain system. The drain soon began to overflow, sending water ...


    By Presto Geosystems

  • Lessons Learned from Large Diameter Sanitary Sewer Pipe Bursting Project: Conversion of Abandoned Gravity Sewer Main Into Upsized Sanitary Force Main South San Francisco, CA

    ABSTRACTAs an increasing number of large diameter pipe bursting jobs are attempted, more is being learned about the capabilities and potential of pneumatic pipe bursting. The large diameter pipe bursting project in South San Francisco is one of the most challenging and innovative bursting projects ever attempted in North America. It is being heralded as a landmark pipe bursting job. ...

  • Honolulu force main microtunneled

    Long a favored product for microtunneled sanitary sewer interceptors nationwide, now installation of Hobas centrifugal cast fiberglass reinforced polymer mortar (CCFRPM) pressure pipes by jacking is also becoming commonplace. A near flawless installation was completed in Honolulu on the Hart Street Wastewater Pump Station Force Main Replacement project. The new line included 2200 feet of ...


    By Hobas Pipe USA

  • Los Angeles County WRRF Embraces Codigestion

    Technology to produce food waste slurry key to project implementation - and helps generators comply with California organics recycling mandates. The Sanitation Districts’ JWPCP in Carson (CA) treats an average of 280 million gallons/day of wastewater. One of the two anaerobic digestion tanks above has been used for codigestion, with the second serving as the control. Photos ...


    By BioCycle Magazine

  • Got deteriorating asbestos cement water mains?

    Asbestos has come to be one of the most feared words and materials in the world. Yet, in the 1940s, 1950s and 1960s, more than 600,000 miles of asbestos cement– also called transite – used for its light weight, corrosion resistance, rigidity, ease of handling and installation was installed to handle water throughout the United States. Applications included potable water mains, storm ...

  • Rehabilitation of a Large Semi-Elliptical Sewer

    ABSTRACTThe Sanitation Districts of Los Angeles County (Districts) own, operate, and maintain a wastewater treatment and collection system that includes approximately 1300 miles of sanitary sewers ranging from 6 to 144 inches in diameter. A portion of the Districts’ Joint Outfall “A” Trunk Sewer was constructed of cast-in-place reinforced concrete having a semi-elliptical cross section and ...

  • Low pressure sewer system for affluent existing neighborhood

    The River Oaks subdivision is an affluent, mature residential community located in Fairfax, County Virginia which includes 114 existing single family dwelling units with individual septic tank drainfields. The Fairfax County Health Department determined that several drainfields have failed and expressed concern that others would soon fail. In order to prevent the health and environmental problems ...

  • Integrating Rural Wastewater Management: Crow Wing County Sanitary Management District

    ABSTRACTDouble-digit population growths and skyrocketing development has resulted in a dramatic increase in unsewered development in Minnesota’s popular lakes county. To help assure protection of human health and the quality of the waters, a county wide decentralized sanitary district with pilot subordinate districts is being established in Crow Wing County. The objective of the district is to ...

  • 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

  • Another Sewer from Hell - The City of Richmond, British Columbia, Canada Experience

    ABSTRACTThe City of Richmond has a population of approximately 180,000 and is located on a flood plain at approximately sea level. These physical attributes present numerous challenges with underground utility design, including sanitary sewers. On January 21, 2005 the City declared a local state of emergency near the intersection of No. 3 Road at Cook Road due to the development of a large ...

  • Missing the Fairway – A Creative Sewer Design through a Private Golf Course

    THE PROBLEMThe City of Sioux Falls, South Dakota is experiencing rapid growth and is being pressured to open additional land for development. A ridgeline on the City’s eastern border prevents the extension of the existing gravity sewer system and creates the need for a completely new system. As shown in Figure 1, the new $31 million dollar system will extend from the ridgeline eastward to the Big ...

  • BOSS 2000 HDPE Storm Sewer Pipe, Stettler, AB

    Owner: Town of Stettler Installer: Woooden Construction Ltd. Designer: Associated Engineering Alberta Ltd. Location: 57 Street, Stettler, Alberta As part of a sanitary main replacement project, the Town of Stettler was faced with the challenge of replacing an aging storm sewer line under very low cover conditions. ...


    By Armtec

  • 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 ...

  • Maximazing Operational Capacity for Outfall Sewers through Innovative Design

    ABSTRACTThe City of Lincoln, Nebraska has undertaken a strategy to accelerate development of infrastructure systems for critical areas of the community, with the goal of nearly doubling the development rate for those areas. The Little Salt Creek drainage basin is a growing service area which includes over 3,000 acres of developed land and ultimately 5,300 acres in all. The majority of the ...

  • World’s largest compressible media filtration plant eliminates combined sewer overflows, with potential for dry-weather use

    The City of Springfield, Ohio, recently opened its 100 MGD enhanced high-rate treatment facility, designed to treat and disinfect combined high-volume stormwater and wastewater flows generated by wet-weather conditions. Utilizing EPA-documented Compressible Media Filtration technology – FlexFilter™ from WesTech – the system can also provide tertiary filtration and disinfection ...


    By WesTech Engineering, Inc.

  • A simplified method for estimating chemical oxygen demand (COD) fractions

    A simplified method is presented for estimating chemical oxygen demand (COD) fractions. Its effectiveness was assessed by comparing different values found in literature. This case study considered two main sanitary sewer collection systems in Bogotá, Colombia. The results showed important differences in COD fractions between the sewer collection systems and the reference data. The method ...


    By IWA Publishing

  • How Tempe Controls Manhole Odors

    Untitled Document Summary: The adjacent cities of Tempe and Mesa, Arizona, rely on a combined wastewater collection system comprising 434 miles of sanitary sewer lines and more ...


    By Calgon Carbon Corporation

  • 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 ...

  • Case Study: Barboursville, the “Best Little Village in the state,” just got better

    Barboursville, which bills itself as the “Best Little Village in the State of West Virginia,” has just completed an impressive upgrade to its wastewater treatment lagoon.  What makes the upgrade impressive?  Try this: Increased capacity of the existing lagoon from 600,000 gpd to 1,500,000 gpd. Had no disruption of treatment during construction. Total project costs of less than ...


    By Environetics, Inc.

  • Continuous Modeling of Wet Weather Strategies Annual Water Quality Results Support a Municipality’s Decision-Making Process

    ABSTRACTAn extensive water quality modeling effort for the City of Columbus Long Term Control Plan (LTCP) was performed in order to evaluate future scenarios to abate combined sewer overflows. This modeling effort was supported by a massive data collection program and employed three different models to analyze the receiving streams. Once the models were selected and calibrated, continuous annual ...

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you