Staff Reports - East Bay Municipal Utility District

Board of Directors
Monthly Report - February 2013
Page 4
The first of two major aqueduct shutdowns was completed on the Mokelumne Aqueducts
Interconnection Project on February 4. Mokelumne Aqueducts Nos. 1 and 2 were returned to
service on February 11. Shutdown of Mokelumne Aqueduct No. 3 began on February 23 and is
scheduled to end on March 29. The contractor is performing tie-in work on Aqueduct No. 3.
The Mokelumne Aqueduct temperature anchor upgrade was completed on February 26.
Work on the final anchor to maintain the stability and integrity of Aqueduct Nos. 1 and 2 was
completed during the recent shutdown of the aqueducts.
Operational testing at the Walnut Creek Raw Water Pumping Plant resumed on
February 21. Testing of the six refurbished raw water pumps and switchgear for Walnut Creek
Pumping Plant Nos. 1 and 2 will be completed in mid-March.
Annual open-cut dam safety inspections were completed on January 28, February 7 and
February 9. The inspections are performed annually in conjunction with the Division of Safety
of Dams to ensure there are no safety issues and the dams are operated in accordance with state
licensing requirements. Additional safety inspections included the exercising of valves on three
of the inlet-outlet pipelines. The inspections confirmed that the dams are operating satisfactorily.
Staff submitted a grant application to the Department of Water Resources (DWR) on
February 1 requesting $5 million in Proposition IE funds to go toward the Chabot Dam
Seismic Upgrade project. Pursuant to the Disaster Preparedness and Flood Prevention Bond Act
of 2006, DWR is authorized to issue grants to public agencies and non-profit organizations to
manage stormwater runoff to reduce flood damages. Chabot dam is operated to provide flood
protection to the residents downstream of the dam.
Main Wastewater Treatment Plant influent screen replacement project. Staff completed the
final design to replace the existing %-inch influent screens at the MWWTP with new ^-inch fine
screens. This project will improve the capture of rags, plastics and other debris entering the plant.
Improved bar screen performance will reduce the impact of rags and solids deposition in
downstream treatment processes, increasing usable digester capacity. The equipment will be
installed during the 2013 and 2014 dry weather seasons.
Solar Turbines is manufacturing higher BTU biogas fuel injectors to resolve injector
damage. Solar Turbines has informed the District that they are in production of a medium BTU
injector that will potentially eliminate future fuel injector damage. These medium BTU injectors
will be installed in April 2013. In the interim, Solar will install re-tipped injectors to ensure that
the turbine can continue to operate with negligible risk of injector failure.
Paving. 9,212 square feet of permanent paving was completed on Davenport Avenue in Oakland
in two days by three District paving crews.
Pipeline. On February 9, District staff began installing 1,830 feet of 16-inch steel water pipe on
Pleasant Hill Road in Pleasant Hill. On February 1 st , District staff began working on three streets