Saving Pipelines & Pump Stations Before It's Too late

Analyzing System Response Time through Modeling and Developing Response Strategies

Thursday, April 19
10:25 AM - 10:50 AM
Location: Meeting Room 315, Sacramento Convention Center

CWEA: .5 Contact Hours

Practice Area: Professional Challenge Area: Collection Systems

HDR developed a pump station response time model for Tahoe City Public Utilities District to support prevention of overflows due to pump failures in this critical region next to Lake Tahoe. The results allow the District to plan and predict problems which could otherwise result in a system overflow.

Learner Outcomes:

Level: Intermediate; working knowledge of subject matter / journeyman level staff

Jeff Lawrence

Senior Project Manager
HDR Engineering


Jeff Lawrence is a civil engineer with almost 30 years experience in the water industry. He has managed projects and programs for water and wastewater planning and design, including master planning, system optimization, and operational management. He has recently worked with other modeling staff at HDR to develop a modeling approach to predict collection system overflows resulting from pump station failures.


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Tony Laliotis

Director of Utilities
Tahoe City Public Utilities District


Tony Laliotis is the Director of Utilities for the Tahoe City Public Utilities District. He supervises the Districts operation staff and is responsible for the daily operations of the sewer collection system which includes 21 pumping stations. Due to the proximity of the system to Lake Tahoe, sewer system overflows are a major concern so prediction of these events is an critical part of the District's operations.


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Gary Warren

Senior Civil Engineer / Supervisor of Wastewater Design Section


Gary Warren, PE, is a Senior Civil Engineer for the East Bay Municipal Utility District (EBMUD), supervising the Wastewater Engineering Division’s Design Section. This Section performs in-house design work for the Wastewater Department’s capital improvement projects. Projects include treatment plant, collection system and recycled water system upgrades and rehabilitation. Gary has been very involved with EBMUD’s innovative resource recovery and co-digestion program, which allows their treatment plant to produce typically 130% of the power needed to operate the plant. Gary has a BS in chemical engineering from UC Santa Barbara and 30 years of experience. Prior to working for the District, he also worked for CH2M HILL (now part of Jacobs) and Metcalf & Eddy (now part of AECOM). He is also very active in CWEA, currently serving on the board of the local SF Bay Section.


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Analyzing System Response Time through Modeling and Developing Response Strategies


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