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Summit Environmental Contractors

San Juan Capistrano, CA 92675

Company Info

  • Annual Vol Not Provided

Featured Project Return to Projects List

Caltrans Excavation & Transportation of Aerially Deposited Lead (ADL) Material- Interstate Route 5

Project Information

Project Location:
Santa Clarita, CA
Approx Contract:
$50,000
Status:
Completed - Mar 2014
Structure Type:
Road / Highway

References

Owner:
Caltrans, District 7

Scope Of Work

Summit provided consulting services including the preparation of an excavation and transportation plan, lead compliance plan, and sampling and analysis plan outlining the requirements for the handling of material contaminated with ADL to be performed during highway construction activities along an approximate three (3) mile stretch of Interstate Route 5 in Santa Clarita, California (Site). The selected remedial action for the Site consisted of removing roadway and structural material that had been determined to be contaminated by ADL.

The ADL material was identified within unpaved areas or formerly unpaved areas of the roadside soils along the Site adjacent to Interstate 5, along Caltrans right of way, and frontage roads. The material was excavated, loaded, and transported offsite, or reused on site in accordance with the Department of Toxic Substances Control (DTSC) variance which provides that the contaminated soil may be reused if it is placed a minimum 1.5 meters above the maximum water table elevation and protected from infiltration by a pavement structure which is maintained by Caltrans. Consulting services also included air monitoring for lead during soil excavation, stockpiled soil sample collection, analysis, and characterization. Summit conducted statistical analysis to determine the disposal or reuse options for approximately 14,000 cubic yards of hazardous and non hazardous material.

Material - Interstate 5

Project Type - Highway Site Investigation and Statistical Analysis

 

 

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