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City of San Leandro <br />Sewer System Management Plan <br />Volume I <br />P a g e | 16 <br />Forms <br />Work order forms are used for <br />Routine cleaning (hydro-flushing, rodding) <br />CCTV inspection (condition assessment, construction inspection) <br />FOG activities <br />Repairs, refurbishments and replacements <br />Manhole/structure inspections <br />Service calls <br />SSO reporting <br />Sewer Cleaning <br />Cleaning is the City’s primary sewer maintenance activity. The City has both frequent, focused <br />cleaning as well as cyclic cleaning for pipes not on the focused cleaning schedule. <br />The City is currently on a one-year schedule to inspect and clean each public main within the <br />City’s sanitary authority. Excessive grease buildup in City mains is also addressed through our <br />FOG program, both through inspection and enforcement for commercial/industrial dischargers <br />and through public outreach in residential areas. Areas where we have root intrusion are <br />identified through routine cleaning and through video inspection of the system. These are <br />maintained with conventional methods and a chemical root abatement program. Presently these <br />identified problem areas are forwarded to the City’s Engineering staff where they are prioritized <br />and scheduled into the capital improvement program. <br />Hot Spots <br />Areas that have known problems such as excessive grease buildup or odor problems are cleaned <br />and checked on a much more frequent basis based on experience history. Approximately 5% of <br />the system is included in the focused cleaning program (Hot Spots), with inspection on a weekly <br />or bi-weekly basis, and cleaning on a 30, 60, or 90-day schedule. Cleaning frequency depends on <br />the history and cause of stoppages or overflows on a line. Focused cleaning is performed <br />primarily by jetting. <br />Root Control <br />The City has both a focused and cyclic root treatment program that covers approximately one- <br />third of the system per year. Roots encroach upon the interior of sewer mains through structural <br />cracks faulty pipe joints and defective laterals. Root intrusion is also a common problem in sewer <br />laterals which are shallow and frequently not as well constructed as sewer mains. If roots are <br />observed to be an issue during routine cleaning, in response to complaints, or through