Standard Operating Procedure of CCTV Sewer Inspection. Application for Sewerage Information Plan (SIP)

Standard Operating Procedure of CCTV Sewer Inspection. Application for Sewerage Information Plan (SIP)

The standard operating procedure (SOP) for CCTV sewer inspection is a set of guidelines and steps that should be followed to ensure a safe, efficient, and accurate inspection of sewer systems using closed-circuit television (CCTV) technology.
Below is a general outline of the typical steps involved in the CCTV sewer inspection process:

  1. Preparation: a. Assemble all necessary equipment, including the CCTV camera system, control unit, cables, and lighting. b. Ensure that all equipment is in good working condition and calibrated properly. c. Conduct a safety briefing for all personnel involved in the inspection.
  2. Access Setup: a. Gain access to the sewer system through manholes or other access points. b. Ensure proper safety measures are in place, such as barricades and signage to prevent unauthorized access.
  3. Camera Setup: a. Install the CCTV camera on a suitable inspection vehicle or pushrod system. b. Connect the camera to the control unit and power source. c. Verify that the camera lens is clean and in focus.
  4. Calibration and Testing: a. Calibrate the camera’s orientation and measurement settings. b. Perform a test run to ensure the camera and equipment are functioning correctly.
  5. Recording and Documentation: a. Start recording the inspection data, including date, time, location, and camera settings. b. Document the condition of the access point and any visible defects or obstructions.
  6. Insertion and Inspection: a. Carefully insert the camera system into the sewer line. b. Progress through the sewer line slowly and methodically. c. Maintain clear communication between the camera operator and personnel above ground.
  7. Data Collection: a. Capture high-quality video footage of the sewer interior. b. Take note of any structural defects, blockages, or other issues. c. Measure and record the size and location of defects using the camera’s measurement capabilities.
  8. Troubleshooting: a. Address any technical issues that may arise during the inspection, such as camera malfunctions or cable snags. b. Make adjustments to lighting and camera angles as needed for better visibility.
  9. Post-Inspection Review: a. Review the recorded footage to ensure all necessary data has been captured. b. Compile inspection data into a comprehensive report, including defect descriptions and their locations. c. Evaluate the overall condition of the sewer system.
  10. Maintenance and Cleanup: a. Clean and disinfect the camera and equipment after use to prevent contamination. b. Perform routine maintenance on the CCTV equipment to ensure it remains in good working condition.
  11. Data Analysis and Reporting: a. Analyze the collected data to assess the sewer system’s condition. b. Generate detailed inspection reports and share findings with relevant stakeholders.
  12. Data Storage and Archiving: a. Store inspection data and reports in a secure and organized manner for future reference. b. Ensure compliance with data retention regulations and standards.
  13. Follow-Up Actions: a. Based on the inspection findings, develop a plan for necessary repairs or maintenance. b. Schedule any required follow-up inspections.
  14. Safety and Environmental Compliance: a. Ensure that all safety protocols are followed throughout the inspection process. b. Adhere to environmental regulations regarding the disposal of wastewater or cleaning agents.

The exact position, alignment, levels of and lateral connections to the sewers and manholes must be verified on site before commencement of any construction works or specified activities within the sewer corridors (refer to Annex for more information).
Please note that it is an offence under the Sewerage and Drainage Act S13A(1)(b) for any person who breaks any ground without physically ascertain the location of any public sewerage system in the vicinity of the works.

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