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The Division 20 Portal Widening and Turnback Facility Project
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Division 20


The Division 20 Portal Widening and Turnback Facility Project aims to accommodate increased service levels on the Metro Red and Purple Lines. To achieve this, Metro is planning facility improvements to the Division 20 Rail Yard, located within the Arts District in downtown Los Angeles.

Improvements include widening of the heavy rail tunnel portal south of the US-101 freeway, a new turnback facility, and expansion and reconfiguration of rail storage tracks. With these improvements, new tracks and switches will allow for improved service times at Union Station and throughout the Metro Red/Purple Line system. Additional project information is available on the Metro website: Division 20 Portal Widening & Turnback Facility Project (

GlobalASR prepared the hazardous waste and hazardous materials technical memorandum for the approved Environmental Impact Report (EIR) for this project by reviewing volumes of environmental documents pertaining to hazardous waste impact to the various parcels acquired for the project.

GlobalASR’s Principal has extensive experience conducting site investigation and remediation on the properties that are part of this project under the former Aliso Manufactured Gas Plant (MGP) Voluntary Clean-up Agreement (VCA) under the oversight of the Department of Toxic Substances and Control (DTSC).

During the construction phase of the Division 20 Portal Widening and Turnback Facility Project, GlobalASR is providing the following services:

  • Construction noise and vibration monitoring

  • Construction stormwater pollution prevention plan (SWPPP) compliance inspections

  • Review of environmental submittals/reports

  • Participation in project environmental meetings

  • Support in oversight of legacy MGP waste management encountered during construction."


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