Environmental Cleanup Project · 5 Cleanup –June to December 2017 • On-site treatment of 32,000...

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Environmental Cleanup Project1206 West 14th Street, Eureka

May 30, 2018

Site Location

• Manufactured gas plants operated from the mid-1800s to early 1900s• Used coal and oil to produce gas for lighting, heating, and cooking • Closed down with the arrival of natural gas in the 1930s• Common practice to leave byproducts on-site

Manufactured Gas Plants (MGPs)

• Eureka gas plant operated from the early 1900’s to the 1940’s

• Residues from gas plant - coal tar and lampblack

• Chemicals polycyclic aromatic hydrocarbons (PAHs), volatile organic compounds (VOCs) and

some metals and petroleum products

• Site did not present a health-risk but was part of a voluntary program to remediate sites in

accordance with today’s regulatory requirements

Former Eureka Gas Plant

Cleanup – June to December 2017

• On-site treatment of 32,000 tons of soil to immobilize chemical residues

• Excavation and off-site disposal of 4,000 tons of soil

• Disposal and/or recycling of 2,500 tons of wood and concrete debris

• Soil and asphalt cover

• Post-remediation inspection and ongoing groundwater monitoring

• Local spend - $3,014,968

• 2,336 tons material recycled: asphalt, concrete, steel

• Reduction in greenhouse gas 619 MTe

Agency Oversight

• North Coast Regional Water Quality Control Board

• North Coast Unified Air Quality Management District

• City of Eureka

Site Remediation

Site Remediation Photos

• Communication

• Air monitoring

• Work site and perimeter

• Dust and odor control

• Majority of work tented

• Limit excavation sizes

• Use water, foam, plastic tarps

• Noise and vibration monitoring

• Inspect, clean and cover trucks before

leaving the site

• Traffic management

Community Protection

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Thank you

Alison Talbott, PG&E Public Affairs

(707) 502-5769

a1t5@pge.com

Tracy Craig, Community Relations Consultant

(510) 334-4866

tracy@craig-communications.com

• On average, 20 to 30 trucks per week will travel to and from the site

• Flaggers to manage truck traffic as enter/exit site

Truck Route

Environmental Cleanup Project · 5 Cleanup –June to December 2017 • On-site treatment of 32,000...

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