HomeMy WebLinkAboutRPT 2 US NAVY FUEL LNE 11-19-90DATE:
TO:
FROM:
NOVEMBER 13, 1990
WILLIAM A. HUSTON, CITY MANAGER
REPORT NO. 2
11-19-90
Inter - Com
PUBLIC WORKS DEPARTMENT/ENGINEERING DIVISION
SUBJECT: U.S. NAVY FUEL LINE
RECOMMENDATION:
Receive and file.
BACKGROUND:
The subject fuel line is an 8" diameter pipeline owned and
operated by the U. S. Naval Supply Center in San Pedro,
California. This pipeline extends from the San Pedro area to
the E1 Toro Marine Corps Air Station and to the Tustin Marine
Corps Air Station and is located within the following Tustin
Streets; Seventeenth Street, Newport Avenue, Old Irvine/Irvine
Boulevard, Robinson Drive, Keller Drive and Browning Avenue.
In June, 1990, a contractor for the Navy acquired a construction
permit from the City to excavate and repair a leak in the fuel
line at the intersection of Newport Avenue and Old Irvine
Boulevard. At this time the Orange County Health Department
required underground borings in the vicinity of the leak to
determine the extent of the contamination and possibility of
infiltration into the ground water.
The initial borings of June, 1990 were not deep enough and the
results of these borings were inconclusive. A second set of
borings were made in October, 1990 to a depth of 90 + feet.
These borings indicate the contamination stops at a depth of
approximately 80 feet below the street surface.
The Navy's consultant is now proposing a third set of borings
with monitoring wells to further track the limits of the
contamination.
DISCUSSION:
During the week of November 121 1990, the U. S. Navy's
contractor will be backfilling the excavation and replacing the
asphaltic concrete pavement in the Newport Avenue and Old Irvine
Boulevard intersection to the City's standards.
- The Orange County Health Department will continue to monitor the
limits of contamination through the above mentioned monitoring
wells as well as any required cleanup activity that may be
required. Staff will request that the City be copied on any
correspondence between the U. S. Navy and the Orange County
Health Department on this incident or any other matter relating
to the subject pipelines within the City limits of Tustin.
Additionally, staff will be requesting from the Navy, the exact
cause of the leak. At this time it is unknown whether the leak
was caused by corrosion or faulty workmanship. A follow-up
report will be forwarded to the City Council once all the
information has been received.
Bob Ledendecker
Director Public Works/City Engineer
BL: ccg