CHAPTER 10 – HAZARDS AND HAZARDOUS MATERIALS - sacog

With respect to transportation changes in Lands Not Identified for Development, the localized
impacts associated with implementation of the proposed MTP/SCS are the same as described in
the regional impacts discussion above. Transportation projects in Lands Not Identified for
Development have the potential to create exposure to asbestos.
Therefore, the asbestos impacts related to transportation improvements from implementation of
the proposed MTP/SCS in Lands Not Identified for Development are considered potentially
significant (PS) for Impact HAZ-2b. Mitigation is discussed below in Mitigation Measure HAZ-
1.
C. Transit Priority Area Impacts
As with the localized impacts discussed above, the Transit Priority Area impacts associated with
implementation of the proposed MTP/SCS are the same in each of the Transit Priority Areas as
described in the regional impacts discussion above. Land use and transportation projects in the
Transit Priority Areas have the potential to create exposure to asbestos.
Therefore, the asbestos impacts related to land use and transportation improvements from
implementation of the proposed MTP/SCS at the TPA level are considered potentially
significant (PS) for Impact HAZ-2b. Mitigation is discussed below in Mitigation Measure HAZ-
1.
Mitigation Measure HAZ – 1: Implement dust mitigation plan applicable to activities with
risk of disturbing areas known to contain NOA.
The implementing agency should require a dust mitigation plan for any activities, including
construction, grading, quarrying, and surface mining, in areas known to contain NOA. The dust
mitigation plan should, at a minimum, apply in the following areas:
A geographic area designated as an ultramafic rock unit or ultrabasic rock unit on
maps published by the Department of Conservation;
An area with ultramafic rock, serpentine or naturally-occurring asbestos on the site,
as determined by the implementing or the owner or the owner/operator; or
After the start of the operation, the District, a registered geologist, or the
owner/operator discoversultramaic rock, serpentine or naturally-occurring asbestos is
the area to be disturbed.
Where feasible and appropriate, the dust mitigation should include the following elements:
Specify how the operation will minimize emissions;
Prevent visible emissions from crossing the project boundaries;
Limit vehicle speeds;
Apply water prior to and during ground disturbance;
Keep storage piles wet or covered;
MTP/SCS 2035
Sacramento Area Council of Governments
Draft Environmental Impact Report Chapter 10 – Hazards and Hazardous Materials – Page 10-49