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Carolan, James

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Carolan, James
James has managed a number of diverse data development projects over his 25-year career. He uses various software to create complex data development...

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Description: To Inspect or Not to Inspect: Which Pipeline is First?
To Inspect or Not to Inspect: Which Pipeline is First?
Abstract
Palm Beach County Water Utility Department (WUD) owns and operates a wastewater collection system consisting of 1,250 miles of gravity sewer pipe ranging in size from 4” to 30” in diameter, and 600 miles of wastewater force main that have been in operation for over 50 years. PBCUD developed an engineering-based methodology to effectively implement a long-term capital improvement program (CIP), to restore pipeline service life and forecast financial needs for its wastewater assets using a risk-based approach to ranking the pipeline segments for evaluation using the latest inspection methods. The process involved a unique pump runtime analysis was performed on the gravity sewer system to statistically correlate excessive lift station pumping periods to recorded historic high rainfall events and high groundwater periods (inflow and infiltration (I/I)), to identify the worst areas indicative of cracked or leaking sewers and has resulted in a multi-year program to continue inspection efforts.
Palm Beach County Water Utility Department (WUD) owns and operates a wastewater collection system consisting of 1,250 miles of gravity sewer pipe ranging in size from 4” to 30” in diameter, and 600 miles of wastewater force main that have been in operation for over 50 years. PBCUD developed an engineering-based methodology to effectively implement a long-term capital improvement program (CIP), to restore pipeline service life and forecast financial needs for its wastewater assets using a risk-based approach to ranking the pipeline segments for evaluation using the latest inspection methods. The process involved a unique pump runtime analysis was performed on the gravity sewer system to statistically correlate excessive lift station pumping periods to recorded historic high rainfall events and high groundwater periods (inflow and infiltration (I/I)), to identify the worst areas indicative of cracked or leaking sewers and has resulted in a multi-year program to continue inspection efforts.
SpeakerCarolan, James
Presentation time
13:20:00
13:40:00
Session time
13:00:00
13:40:00
SessionSewer System Condition Assessment: From CCTV and 3D Imaging to Drones
Session number610
TopicCollection Systems, Utility Management and Leadership
TopicCollection Systems, Utility Management and Leadership
Author(s)
J. CarolanJ. CarolanJ.Z. Goldman
Author(s)J. Carolan1; J. Carolan1; J.Z. Goldman2;
Author affiliation(s)CDM Smith, MA1; CDM Smith, FL2
SourceProceedings of the Water Environment Federation
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Oct 2020
DOI10.2175/193864718825157573
Volume / Issue
Content sourceWEFTEC
Copyright2020
Word count11

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