Staff Reports - East Bay Municipal Utility District

10
EAST BAY MUNICIPAL UTILITY DISTRICT
DATE: March 7, 2013
MEMO TO:
THROUGH:
FROM:
SUBJECT:
Board of Directors
Alexander R. Coate, General Manager fir
Michael J. Wallis, Director of Operations and Maintenance
Update on January 31, 2013 Declaration of a District Emergency
INTRODUCTION
On Tuesday, January 29, 2013, a 36-inch steel main at the end of Chabot Road in Oakland
experienced a leak. The leak is located under Highway 24 between Chabot Road and Lake
Temescal Park. As a result, a complete shutdown of the main was required. This main is the
primary source of water to approximately 13,500 services in the Dingee Pressure Zone and the
pressure zones above, which includes parts of the Cities of Piedmont and Oakland.
On January 31 st , the General Manager, in consultation with the President of the Board, declared a
District emergency in accordance with Policy 7.03. Furthermore, on February 13 th , the Board of
Directors ratified the emergency declaration under Board Resolution 33915-13. This memo
provides an update on the progress of repairing the main.
CONTRACT AWARDS
Since the last update on February 21 st , two additional contracts were awarded. ARB, a specialty
contractor, was awarded a $180,000 contract to install the high-density polyethylene (HDPE)
pipeline and the California Highway Patrol was awarded a $5,000 contract for traffic control.
Including the contracts previously awarded, a total of $515,000 has been awarded since the
emergency declaration. In addition, District staff has expended 2,470 hours to-date to investigate
the leak, design a repair and restore the main.
STATUS OF REPAIRS
The excavation work on Chabot Road and at Lake Temescal was completed on February 22 n .
V&A Consulting Engineers inspected the pipeline under Highway 24 on February 25 th and found
cracking in the mortar lining, un-mortared sections of pipe, some pipeline corrosion and an offset
in the pipe joint.
Based on the inspection results, staff concluded that the preferred repair option was to insert an
HDPE pipeline inside the existing pipeline. On February 27 th , ARB was awarded a contract to