The City's Sewer Use Ordinance prohibits certain discharges into their sanitary sewer lines. The City's Wastewater Treatment System Use Code can be viewed at Section 360 (PDF).
For more information about sewer backups and what you should know and how you should protect yourself, please see this brochure (PDF).
Equipment Used in Sewer Maintenance Process
The Public Utilities Department may use the following types of equipment when performing inspection and maintenance of its sanitary sewer system:
Jetter/Vactor: The jetter uses a high pressure water system to clean the sewer main of debris, such as sand, grease, and other materials that settle in the sewer main. Using a high pressure water system, the jetter propels a hose, with a specially designed nozzle, into the sewer main. The hose is then pulled back slowly while the high pressure water system flushes the materials to a downstream manhole for removal by the vactor. The vactor uses positive displacement to create a vacuum that can lift debris from manholes.
TV Inspection: Closed circuit television video (CCTV) inspection equipment and pipeline inspection/asset management software is used to inspect sanitary and storm sewers. The system uses a self-propelled transporter to carry the camera down the sewer main. While the camera is in operation, visual data is recorded for maintenance assessment needs.