ANSI AWWA G520-17 pdf free download – Wastewater Collection System Operation and Management
4.3.1.2 Collection system improvement planning. Te utility shall annu- ally assess the need for long-term requirements for capital improvements. Te plan shall include, at a minimum, estimated costs, justifcations, and income sources.
4.3.1.3 Energy management program. Te utility shall review and opti- mize electrical usage at regular intervals, including review of energy trends and costs, and shall consider energy cost in the evaluation of new or replacement system components.
4.3.2 Asset management plan. Te utility shall have an asset manage- ment program that supports capital improvement planning and operation and maintenance activities by determining existing conditions, setting future goals, and tracking progress.
4.3.2.1 Asset inventory. Te utility shall have an accurate, up-to-date tracking list and/or map of the system, showing all gravity line segments and struc- tures (manholes, cleanouts, lift stations, force mains, and other applicable waste- water conveyance facilities owned and maintained by the utility). Assets that have been retired and are still in place should be included in tracking and/or map as applicable.
4.3.2.2 Asset information. Critical information about the assets should be included in the tracking list, either in a computerized maintenance manage- ment system (CMMS), geographic information system (GIS), or other available electronic format, and should be easily accessible. Critical information should include, as a minimum, asset identifcation number and description, diameter/size, material, installation date, address or location information, manufacturer model, and serial number as applicable.
4.3.2.3 Condition assessment. Te assessment of collection system com- ponents should be performed at a frequency based on the capacity of the agency and in a manner that allows for the information collected to be used to appropri- ately maintain each asset until it reaches the end of its useful life.
4.3.3.1 Discharges and disposals. Management of discharges and dispos- als, including overfows, solids, and grease, shall be in accordance with federal, state, provincial, and local or other appropriate regulations as applicable. Te util- ity shall have an emergency response plan that, at a minimum, addresses docu- mentation, planned and emergency response, reporting, mitigation, and long-term control.
4.3.3.1.1 Combined sewer overfows (CSOs). Te utility or service pro- vider shall have a program that monitors, mitigates, and reduces the total number of combined sewer overfows experienced. Service provider personnel should be consistently trained in the CSO mitigation and documentation process. In order to reduce the total number of these types of discharges to be in compliance with applicable requirements and/or system capacities, the utility should employ the use of proactive closed-circuit television (CCTV) and physical inspections of man- holes and other assets prone to these conditions. Te frequency of these proactive inspections should be determined based on the overfow data collected, the “hot spots” identifed, and the goals of the organization. Te results of these inspections should be documented and modifed as necessary to reduce the overall number of overfows.
4.3.3.1.2 Sanitary sewer overfows (SSOs). Te utility or service provider shall have a program that monitors and reduces the total number of SSOs experi- enced. Utility personnel should be continuously trained in the SSO mitigation and documentation process. In order to establish and maintain compliance with the applicable requirements, to reduce the total number of these types of discharges, and to efectively manage the assets, the utility should employ the use of proactive CCTV and physical inspections of manholes and other assets prone to these conditions.