CMOM-Related Assessment of Sewer System Assets for Municipalities Utilizing an Information Management System

摘要

Many sewer system managers today are faced with managing both their routine SewerrnMaintenance Programs and comprehensive Infiltration/Inflow (I/I) Reduction Programs. As arnresult, enormous amounts of data are generated relative to these programs. Furthermore, there isrna need to compile, process, and analyze an assortment of data related to these programs, andrnsummarize the conditions of assets such as pipe and manholes. Investigation activities typicallyrninclude cleaning, root cutting, televising, manhole inspections, smoke testing and buildingrninspections.rnThe impending program known as CMOM - Capacity, Management, Operation and Maintenancern- will have far-ranging impacts upon sanitary sewer system owners and operators. Federalrnregulatory officials are developing regional response plans for sanitary sewer overflows (SSOs).rnThe regional plans will include enforcement and compliance assistance targets. Region 4 of thernU.S. Environmental Protection Agency (EPA) has already instituted a CMOM-Municipal Self-rnAudit Program as an initial step.rnIn support of the ongoing need, we will discuss GIS based software designed to manage bothrnSewer Maintenance and I/I Reduction Programs. The asset management tool includes inventory,rnpublic system, private system, and reporting components. The program is useful primarily tornsewer managers as a tool for managing day-to-day activities relating to sewer system tasks suchrnas issuance of work orders and responding to customer complaints, but can also be utilized inrnconjunction with system modeling needs by engineers.rnPipeline assessment is based upon a modified WRc-type rating system for categorizing therncondition of sewers. Based upon the results of internal televisual inspection of sewers as part ofrnroutine annual maintenance or an I/I program, a grading system is applied for specific defectsrnidentified and an overall rating is applied to each sewer segment. Prioritized rehabilitationrnprograms can then be implemented in a systematic fashion.rnAppropriate case study data will be presented as an example of specific communitiesrnimplementing and utilizing a data management tool as part of daily sewer system activities.