Station E substation

The Station E substation will improve the reliability and capacity of midtown and downtown. 

 Aerial map of the location of the station E substation
Click for larger view of map

SMUD is planning to build a new substation in Sacramento at the north end of 20th Street, north of C Street and the Union Pacific Railroad tracks. The new Station E Substation will replace the North City Substation. Constructed in the 1950s, the North City Substation is nearing the end of its planned operational use.

Substations are critical links in the electrical distribution system. Electricity travels through SMUD’s transmission system to substations where it can be converted to a lower voltage before safe delivery to homes and businesses. The Station E Substation will directly serve the midtown and downtown areas, improving energy reliability and capacity.

Environmental enhancements

Environmental leadership is one of SMUD’s core values. Our environmental clean-up effort will leave the area significantly cleaner and safer than its current condition.

SMUD plans to invest up to $13 million to haul away burn waste that has been on the site for decades and to prepare the site for substation construction currently planned for the end of the year. An impermeable cap will be installed on a portion of the site that will not be used to construct the substation. The cap will seal the ground area to prevent waste from being uncovered and posing a risk to public health or the environment.

Anticipated activities

  • Excavate and remove approximately 64,000 tons of waste material; fill excavated area with new or existing soil that meets safety standards
  • Utilize a haul route that minimizes truck traffic impacts
  • Implement dust control strategies
  • Continuously monitor, inspect and manage all operations for health and safety
  • Continue to collaborate with Sacramento County Environmental Department and State agencies, including CalRecycle, Central Valley Regional Water Quality Control Board and
  • Department of Toxic Substances Control to ensure compliance with the approved soils management plan
  • Ensure the site design and all waste removal activities comply with state and local solid waste regulations
  • Provide ongoing communication with nearby residents and interested stakeholders to ensure the community is well informed about waste removal and substation construction

Project timeline and status

Construction status: 9/24/18

Phase 1B-Excavation & removal of waste materials

Our environmental clean-up effort that began in the Spring of 2018 is planned to be completed in the next 5 weeks. The project removed the planned amount of contaminated materials which were then backfilled with clean soil in preparation for the substation construction. Our contractor will be preparing the site for winter rains and we will suspend work on site in October until Phase 2 (substation construction) begins.

Photo of substation E site during excavation with bulldozer in the background.
August 2018 - Excavation (removal of soil) 
Wide view of substation E site during backfilling
September 2018 - Backfill (clean soil placement) 

Phase 2 - Substation construction

Bids for the substation construction were received and are currently being evaluated. We plan to award this contract in early 2019. After the contract is awarded, we'll schedule an additional meeting with the community to update you on the Phase 2 plans and answer any questions you may have.

Additionally, we'll be completing cap construction on the portion of the site where excavation did not take place. No substation construction work is planned to occur in this portion during Phase 2. The cap will cover the ground to prevent any potential waste that may remain in these areas from being uncovered.

Project status archive

Learn more about the project site and view original CEQA documents.

Read more about the safety precautions we're taking during the waste removal.

Learn who will remove the waste and how it will be removed.

Air quality report

The Station E air quality monitoring plan and daily air quality monitoring reports are available on the Natural Investigation Companies website. Reports for Monday – Thursday will be uploaded the following day and daily reports for Friday – Sunday will be uploaded Monday.

View air quality reports

If you'd like to be notified by SMUD in the very unlikely event there is an imminent dust emission concern, please email and request to be placed on the notification distribution list.


Call us at 916-732-5715 or email us at with your questions or comments. 

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