A method for integrating electro-scan into a video camera based sewer defect identification vehicle: the method employing a vehicle configured for video camera based visual sewer defect identification including a video camera, a signal transmitting cable (40, 130) with the camera coupled thereto, a spool for cable storage, a cable deployment distance sensor, a camera signal evaluation station including access to data from the distance sensor, a signal interconnection between the spool and the camera signal evaluation station and a camera signal pathway extending from the camera through at least a portion of the cable and then through the signal interconnection to the camera signal evaluation station; an electro-scan sewer defect identification probe (20,120); an electro-scan probe signal evaluation station including access to data from the distance sensor, the electro-scan probe signal evaluation station being located on the vehicle; and a grounding element (60, 127); the method comprising the steps of exchanging the camera for the probe relative to the cable; coupling the grounding element to ground; transitioning the signal interconnection to be located between the spool and the electro-scan probe signal evaluation station; routing an electric leak detection signal pathway extending from the probe through at least a portion of the cable and then through the signal interconnection to the probe signal evaluation station along with reference to the grounding element; and closing an electric circuit including the grounding element, the cable, the probe, and liquids within the sewer line, through any defects in the sewer line and back to the grounding element. the method employing a vehicle configured for video camera based visual sewer defect identification including a video camera, a signal transmitting cable (40, 130) with the camera coupled thereto, a spool for cable storage, a cable deployment distance sensor, a camera signal evaluation station including access to data from the distance sensor, a signal interconnection between the spool and the camera signal evaluation station and a camera signal pathway extending from the camera through at least a portion of the cable and then through the signal interconnection to the camera signal evaluation station; an electro-scan sewer defect identification probe (20,120); an electro-scan probe signal evaluation station including access to data from the distance sensor, the electro-scan probe signal evaluation station being located on the vehicle; and a grounding element (60, 127); the method comprising the steps of exchanging the camera for the probe relative to the cable; coupling the grounding element to ground; transitioning the signal interconnection to be located between the spool and the electro-scan probe signal evaluation station; routing an electric leak detection signal pathway extending from the probe through at least a portion of the cable and then through the signal interconnection to the probe signal evaluation station along with reference to the grounding element; and closing an electric circuit including the grounding element, the cable, the probe, and liquids within the sewer line, through any defects in the sewer line and back to the grounding element.