Quantcast MONITORING, HABITAT PROTECTION, AND MITIGATION

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SECTION 4.0 - MONITORING, HABITAT PROTECTION, AND MITIGATION
4.1 TURBIDITY
Turbidity will be monitored at each of the beach placement sites to insure that turbidity
created by beach fill does not have a significant adverse impact. BEACON proposes to
conduct turbidity monitoring by visual observation during the construction of the beach
fills to ensure that the turbidity plume does not increase significantly over ambient
conditions for an extended duration and area.  If extensive turbidity plumes are
observed to persist, the rate and method of beach fill will be modified. The criteria will
be that turbidity generated by the project shall not persist in any sensitive habitat for a
period of more than 6 days.
4.2
MONITORING OF SENSITIVE HABITATS AND HABITAT PROTECTION
MEASURES
4.2.1 Goleta Beach
4.2.1.1 Eelgrass Bed
An underwater survey shall be conducted prior to beach enhancement at Goleta Beach
to determine if an eelgrass bed still occurs offshore from the beach. If an eelgrass bed
is observed, a baseline survey shall be conducted to determine the present health of the
bed. The baseline survey shall establish reference stakes to measure sand deposition
and permanent transects to measure eelgrass.  Along each transect the following
information shall be recorded:
eelgrass density,
percent cover of eelgrass,
length of eelgrass blades above sand,
general health of eelgrass, and
density of kelps and large invertebrates.
The survey shall be repeated following beachfill operations of over 30,000 cubic yards
of fill and again at the end of the summer season during the period of maximum sand
cover. Based on dispersion studies by Moffatt & Nichol Engineers a beach fill of less
than 30,000 cubic yards would not produce enough material to be discernible beyond
the area of immediate fill.  If project-generated sand deposition is observed to be
affecting adversely the eelgrass bed, subsequent beach fill activities at Goleta Beach
shall be modified in a way to prevent deposition of sand in the eelgrass bed. If the
project is observed to cause extensive damage to the eelgrass bed resulting in a loss of
plants, additional mitigation will be required (see Section 4.3 below).
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3208 Bio Report
06/12/02



 


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