The above graph shows an increase of 34% (95 total) SSOs reported in the first two years of the Service Contract. It must be noted that the City reported ALL SSOs, regardless of size. OMI changed procedures and reports only SSOs of certain volume. The primary causes of SSOs seem to be debris and grease. OMI stated in a letter to Operating Engineers Local #3 that there is no contractual MONTHLY requirement for sanitary lines. As such, they are only required to flush the system on a three year cycle. With no CMMS in place to target problem areas, it is no wonder SSOs have increased.
What is evident in the treatment and prevention of SSOs is that the City failed to set standards at a sufficient level to meet the demands of the Water Board. Thereby allowing OMI to provide a service level LESS than what was provided under municipal operation, and still be contractually sufficient. In their haste to complete the Service Contract prior to the March 2003 ballot measure (Measure F), the City let OMI off the hook for our SSO problem.