Tehachapi Renewable Transmission Segments 4, 5, and 10




Project Details

The Tehachapi Renewable Transmission Project involves construction of new and upgraded transmission infrastructure, spanning over approximately 173 miles for Southern California Edison. Segment 4, 5, and 10 consisted of a 51 mile 500kV transmission line.  ETIC provided Environmental Compliance Support for construction that crossed desert transitional zones, oak woodland habitat, native grasslands, and various stream courses and dry washes.

Our Approach

ETIC was responsible for storm water and environmental compliance.  ETIC prepared the Storm Water Pollution Prevention Plans (SWPPPs) for three temporary construction yards and one Erosion and Sediment Control Plan for an area of construction that was less than 1 acre in size.  In addition, ETIC was responsible for field inspections and monitoring to evaluate the progress of construction and compliance with the SWPPP, Emergency Response Plan, Soil Management Plan, Spill Prevention Control and Countermeasure Plan, Hazardous Materials Business Plan, Dewatering Plan, and associated permit requirements.

In addition, qualified biologists from ETIC also provided biological monitoring in accordance to the project-specific construction plan.  The monitoring ensured impact avoidance to sensitive species by checking equipment as it entered and exited the project areas and by monitoring throughout construction. Our biologists provided all deliverables for project compliance, such as daily and weekly monitoring reports.

The species and habitats of concern on the project include:

  • Arroyo Toad
  • Burrowing Owl
  • Desert Tortoise
  • Nesting Birds
  • Swainson’s Hawk

Client: Henkels & McCoy
Location: Kern, Los Angeles, and San Bernardino Counties, California
Duration of Project: 2010-2012

  • Storm Water Compliance
  • Biological Compliance
  • Environmental Monitoring