May 23, 2005 - Riverside County Flood Control

City of Murrieta SWMP
6.0 D EVELOPMENT PLANNING
6.1 INTRODUCTION
Section 6.0 of the Riverside County DAMP describes the development project approval process
implemented by the City of Murrieta to ensure that urban runoff from new development and
redevelopment is reduced to the MEP, that post-development runoff volumes and velocities will be
controlled, and that water quality objectives will not be violated by new development and redevelopment
projects.
6.2 GENERAL PLAN
6.2.1 General Plan Review and Amendment
Watershed protection principles and objectives for managing Urban Runoff for land development are
reflected in the appropriate policies, goals, and objectives of the City of Murrieta General Plan. The City
of Murrieta reviewed its General Plans to ensure that the following principles and policies are properly
considered:
a)
b)
c)
d)
e)
f)
g)
h)
Minimize the amount of impervious surfaces and directly connected impervious surfaces areas of
development and, where feasible, slow runoff and maximize on-site infiltration of runoff.
Implement pollution prevention methods supplemented by source control and treatment control
BMPs. Use small collection strategies located at, or as close as possible to, the source (i.e., the
point where water initially meets the ground) to minimize the transport of urban runoff and
pollutants offsite and into an MS4.
Preserve, and where possible, create or restore areas that provide important water quality benefits,
such as riparian corridors, wetlands, and buffer zones. Encourage land acquisition of such areas.
Limited disturbance of natural water bodies and natural drainage systems caused by development
including roads, highways, and bridges.
Prior to making land use decisions, utilize methods available to estimate increases in pollutant
loads and flows resulting from projected future development. Require incorporation of
appropriate BMPs to mitigate the projected increases in pollutant loads and flows.
Avoid development of areas that are particularly susceptible to erosion and sediment loss; or
establish development guidance that identifies these areas and protects them from erosion and
sediment loss.
Reduce pollutants associated with vehicles and increasing traffic resulting from development.
Post-development runoff from a site shall not contain pollutant loads that cause or contribute to
an exeedance of receiving water quality objectives and which have not been reduced to the MEP.
When the City of Murrieta amends elements of its General Plan, the draft General Plan amendments are
provided to the Regional Board for comment.
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