Port-Wide Sewer System Management Plan(SSMP) - Port of Oakland

• Discussion with Port operating staff to identify any known FOG problem areas (or “hot
spots”) within the Port;
• Airport Terminal site visit;
• Closed Circuit Television (CCTV) inspection of selected sanitary sewer lines within
the Port collection system.
This section summarizes the service area FOG evaluation.
8.2.7.1
Consultation of Operational Staff
The initial step in conducting a FOG service area evaluation for the Port was to seek input
from Port operations staff regarding any known FOG “hot spots” or other issues related to
FOG. Examples of these issues are areas of historical FOG related overflows and sewer
lines that frequently exhibit FOG buildup.
Based on information provided by Port staff, the majority of sewers that exhibit blockages
associated with FOG buildup are attributable to FSFs located within the Oakland
International Airport. In fact, of the three sanitary sewer “hot spots” identified by Port staff,
two are attributable to FOG and are near or adjacent to the airport terminals (see
Section 8.2.8).
8.2.7.2
A site visit was conducted at the Oakland International Airport terminals to identify which
FSFs operate in the airport and to verify which FSFs are served, or are planned to be
served, by grease interceptors. It was discovered during the site visit that the Port is
becoming very proactive in requiring new FSFs in the airport to install large grease
interceptors. A large grease interceptor for the new Chile’s Too was recently installed.
Additionally, grease interceptors will be constructed to service two new food courts and the
new Silver Dragon restaurant.
8.2.7.3
Airport Terminal Site Visit
CCTV Inspection
As part of the Port-Wide SSMP project, CCTV inspections were performed on selected
sanitary sewer lines within the Port collection system. The primary purpose of these
inspections was to identify pipeline or manholes with condition problems (e.g., cracked
pipes, tree roots, adverse slope conditions) and to help identify areas with potential
infiltration and inflow (I/I) issues. However, the inspections also helped to determine where
FOG buildup is a problem in the sewers, which may be indicative of an issue with an FSF
located upstream of the blockage. As the Port performs additional CCTV inspections,
additional FOG problem areas may be identified.
May 2010 8-8
pw://Carollo/Documents/Client/CA/Port of Oakland/8239A00/Deliverables/Ch08 (FinalA)