Indirect inspection surveys have successfully inspected piggable and difficult to pig buried onshore Oil and Gas steel pipelines for decades. Indirect inspection methodologies such as ACVG, DCVG, CIS, GPS, leak detection, and DOC have aided oil and gas pipeline operators to monitor the health of their assets and completing mitigation to ensure their assets are functioning as per design, standards, and code. There has been extensive continuous improvement in monitoring oil and gas pipelines using indirect inspection technology. The water and wastewater pipelines have varying pipe materials. These pipelines are not regulated and do not have extensive literature, and dedicated teams to support maintaining assets in relation to external corrosion prevention, maintenance, and monitoring. This paper focuses on the application of demonstrated indirect inspection technology and methodology in municipal water and wastewater pipelines. The paper will discuss different pipe materials: coated steel pipeline, BWP, and PCCP inspected using indirect inspection technology, and present case studies.