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Hydraulic Hydrodynamic Modeling as an Effective Management Tool for Large Collection Systems - the L.A. Story

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There are a many difficult challenges when it comes to managing large and complex wastewater collection systems such as the one the City of Los Angeles owns and operates. The City's sewer system serves close to 4 million people in about 550 square miles of service area. The network consists of 6,500 miles of sewers varying in size from 8 inches to 150 inches in diameter. Of those sewers approximately 700 miles make the Primary Sewer System that collect from smaller sewers and discharge to 50 miles of large capacity trunk lines called the Outfall Sewer System. Outfall sewers convey wastewater to two upstream treatment plants and subsequently to the larger Hyperion Wastewater Treatment Plant. Hydrodynamic Modeling is an essential tool to effectively manage the system's operation, especially when emergency conditions arise as a result of excessive wet weather flow, wastewater treatment plant shutdown, and/or pipe structural failure.


Document Type: Research Article


Publication date: 2007-10-13

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