STATE OF CALIFORNIA, PETE WILSON,
- PUBLIC UTILITES COMMISSION
- 505 VAN NESS AVENUE
- SAN FRANCISCO, CA 94102-3298
October 29, 1998
- Dean Shauers, Project Manager
- Pacific Pipeline System, Inc.
- 12201 E. Arapahoe Road, C10
- Englewood, CO 80112
RE: Variance Request #124 - Allow for above
ground installation of the pipeline at the Los Angeles Aqueduct
High Speed Channel and construction of a 200 foot concrete cover,
instead of a bore installation as originally proposed, City of
Los Angeles (Segment 3).
Clearance #76 - Request for an extra work space
along San Fernando Road for the subject installation and concrete
cover, City of Los Angeles (Segment 3).
Dear Mr. Shauers:
We have reviewed the above-referenced requests,
and our decision of approval is based on the following factors:
- The change of pipeline installation from a
bore to above ground technique has been required by the
City of Los Angeles and Los Angeles Department of Water
and Power (LADWP). The above ground pipeline
installation, combined with the construction of the
proposed concrete cover, would provide additional
mitigation at the Aqueduct channel in preventing an oil
spill from entering the Los Angeles water system. The
specifications and design of the above ground pipeline
installation and concrete cover were developed by LADWP
engineering staff (in consultation with the City of Los
Angeles, PPSI, and its consultants) and would be
constructed under PPSI supervision. The approved LADWP
plans for the subject installation have been submitted to
the CPUC Lead Environmental Monitor.
- As proposed, the irregular shaped parcels
adjacent to the aqueduct channel would be used for
construction of the pipeline and cover as required by the
City of Los Angeles and LADWP. The subject work space is
located on the west side of San Fernando Road near Balboa
- No residences or businesses are located
within the area. The concrete cover would bridge the
Aqueduct channel approximately five feet above grade. No
land use or visual impacts are anticipated from the above
ground pipeline installation, including cover, or use of
the adjacent area as an extra work space.
- A biological resources survey of the
subject work space was conducted by a PPSI biologist (R.
Maddox) on October 14, 1998. The subject area has been
disturbed by previous construction activities. Vegetation
is generally confined to items that thrive on disturbance
including mustard, aster, canyon sunflower, Russian
thistle, and fiddleneck. A small patch of mulefat was
found near a leaking aqueduct pipe and two Eucalyptus
trees are located adjacent to San Fernando Road. No
active wildlife was seen with the exception of a black
phoebe. Wildlife signs indicate that fox, California
ground squirrel, cottontail, jack rabbit, and killdeer
use the area. No sensitive plant or wildlife species were
noted during the survey. No impacts to biological
resources are expected.
- A cultural resources survey of the subject
work space was conducted by PPSI archaeologists (A.
Knight and K. Lord) on October 13, 1998. No prehistoric
or historic resources were identified during the survey.
Given previous construction activities, no intact,
subsurface cultural resources are anticipated. The
Aqueduct Pipeline itself as been given a site record
number by the County of Los Angeles (Lan 2105-H). A
representative from Owl Clan Consultants was contacted
regarding Native American concerns. No concerns were
noted. No impacts to cultural resources are anticipated
with implementation of the measure noted below.
- The following mitigation measures shall be
- All applicable mitigation measures for
the project shall be implemented at the subject site,
including dust abatement and traffic control.
- Prior to the commencement of
construction, written approval for the above ground pipeline
installation and concrete cover from the City of Los Angeles
shall be provided to the CPUC Lead Environmental Monitor. All
conditions of approval from the City of Los Angeles and LADWP
shall be implemented under this variance approval.
- Prior to the use of the extra work space,
written landowner approval shall be provided to the CPUC
- The boundary and ingress/egress points to
the subject work space shall be clearly flagged.
Ingress/egress shall be restricted to the existing driveway.
Traffic into and out of the construction site shall be
controlled with the use of flaggers.
- A qualified archaeologist and Native
American Monitor shall be present during any clearing or
grading activities. If any signs of cultural resources are
identified, work shall cease immediately, and the site shall
be evaluated using the procedures in the Cultural Resources
- The subject site shall not be used for
fuel or hazardous material storage.
- All drips, leaks, and/or spills from
vehicles and/or equipment shall be excavated immediately and
disposed of in appropriate, labeled containers.
- Adjacent streets shall be swept manually
or with water sweepers, as appropriate, at the end of each
day if visible soil material is carried onto them (as
required by Mitigation Measure A-8).
- No parking or storage of vehicles
(including personnel vehicles), equipment, pipe, or any other
project-related items shall be allowed on adjacent roadways.
- As proposed, the fencing along the
Aqueduct channel shall be moved to the edge of San Fernando
Road to restrict the public from entering the construction
area/extra work space.
- As proposed, the two Eucalyptus trees
along San Fernando Road shall be fenced to preclude any
- Signs shall be posted in conspicuous
locations along the work area warning of overhead power
- Implementation of this variance approval
and use of the subject work space in accordance with the
provisions noted above will be verified on a random basis by
a CPUC/ANF Environmental Monitor.
- Andrew Barnsdale
- Project Manager
- cc: R. Borden, ANF
- H. Rastegar, Aspen
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