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Operations report: crews enlarged condition-assessment output, removed grout from lines, and recovered a stuck CCTV crawler
Summary
Operations reported HAZCOM training, new grinder replacements, expanded CCTV and condition-assessment production in March, removal of 10 buckets of pool/construction grout from a new sewer, a stuck CCTV crawler recovered via emergency open-cut repair, and one small (20-gallon) spill. Staff will pursue outreach to pool contractors and permitting authorities to reduce grout discharges.
Operations and maintenance staff summarized a busy month: preventive maintenance and replacement of influent grinder cutters at a pump station, expanded CCTV and condition-assessment production (two trucks daily), and completion of a pilot leading to operational changes such as updating high-frequency cleaning schedules. The district's new IMS cutter was field-tested and staff described early benefits for point repairs.
Operations staff reported several incidents involving grout discharged from pool resurfacing or resurfacing-waste that had been pumped into the sewer system; staff said they removed "10 buckets of grout" from a newly installed sewer run and spent significant time flushing to protect equipment. A CCTV crawler became stuck inside a line on Tamalpais Avenue and staff performed an emergency open-cut and replaced the pipe section; the crew removed the camera assembly and completed the repair the same day. Staff said they will coordinate outreach with local permitting offices to require proper disposal procedures and will continue monitoring and enforcement.
