Draft Environmental Impact Report - California Off Highway Vehicle ...

3.7 Geology and Soils
As noted under “General Plan Impact Analysis” above, percolation test results indicate that soils
on‐site generally have very slow infiltration properties, which would make them incompatible
with a standard gravity‐fed septic system. Therefore, the septic system that would serve the
sanitary facilities proposed at the headquarters facilities would require special engineering (e.g.,
an aboveground leach field). Soils Guideline 1.6 and DU Guideline 3.1 require that development of
facilities comply with all regulatory requirements related to soil safety. Accordingly, an on‐site
wastewater site evaluation would be conducted to determine the appropriate system design for
wastewater disposal on the site, and a compatible system would be constructed on‐site.
Implementation of this guideline would result in less­than­significant impacts.
Mitigation Measures: No mitigation is required.
3.7.5 Summary of Significant Impacts
Adoption of the Clay Pit SVRA General Plan and implementation of resulting actions would not
result in significant impacts on geology and soils resources. Constructing and operating the
headquarters facilities would not result in significant impacts on geology and soils resources.
3.7.6 Mitigation Measures
No significant impacts on geology and soils resources would result with implementation of the
Clay Pit SVRA General Plan, including construction and operation of the headquarters facilities,
and no mitigation is required.
Clay Pit State Vehicular Recreation Area
Draft EIR 3.7-9 February 2012