Staff Reports - East Bay Municipal Utility District

Findings: The project would not conflict with local plans, policies, or regulations aimed
at curbing emissions of greenhouse gases because of its small scale and temporary nature.
The construction mitigation measures from the air quality section (AIR-1 and AIR-2)
will also serve to mitigate potential impacts from greenhouse gas emissions. Therefore,
no additional mitigations are required.
As a result of these project circumstances, and by employing these mitigation measures,
the Project will have Less than Significant impacts to Greenhouse Gas Emissions.
F. Hazards and Hazardous Materials
Impact: Less Than Significant with Mitigation Incorporated
Findings: Entities undertaking construction and excavation activities disturbing more
than one acre of asbestos-containing materials, which may exist in the serpentine rock
matrix in the Franciscan Formation in the project site, are required to prepare an Asbestos
Dust Mitigation Plan specifying measures that would be taken to prevent visible dust
dispersing into adjacent property. The plan must be submitted to and approved by the
BAAQMD at least two weeks prior to the beginning of excavation, and the site operator
must ensure the implementation of all measures through the construction project. In
addition, the BAAQMD may require air monitoring for offsite migration of asbestos dust
during construction activities and may change the plan on the basis of the air monitoring
results. While subsurface investigations did not encounter asbestos-laden serpentine
bedrock materials, if serpentine rocks are discovered, implementation of Mitigation
Measure HAZ-1 in the in the MND and MMRP will lessen potential impacts to a Less
than Significant level.
Backbone and distribution pipelines are dosed with chlorine to disinfect the pipeline prior
to being placed in-service. This water is then purged from the pipeline and dechlorinated
prior to release into the sewer or storm water system. The implementation of BMPs
consistent with Mitigation Measure HAZ-2 identified in the in the MND and MMRP
will lessen potential impacts associated with releases to a Less than Significant level.
Facts in Support of Findings: Measures HAZ-1 and HAZ-2, are hereby incorporated and
imposed and shall be monitored in compliance with the MMRP. Because EBMUD has
agreed to these mitigations, any such impacts have been avoided or will be reduced to a
Less than Significant level.
As a result of these project circumstances, the Project will have Less than Significant
impacts to Hazards and Hazardous Materials Resources.
G. Noise
Impacts: Less Than Significant with Mitigation Incorporated