Mid-Coast Corridor Transit Project

Client: San Diego Association of Governments (SANDAG)
Location: San Diego County, CA
July 11, 2016 – present

11-Mile Corridor Soil & Groundwater Management Plan


Storm Water Pollution Prevention Plan (SWPPP)

Web-Based Data-Driven Map for Coordination of Soil Disposal

Rincon has been providing environmental support services to the project construction team responsible for the Mid-Coast Corridor Transit Project (MCCTP), which will extend the existing trolley line from the Old Town Transit Center northward to the University of California, San Diego, and the University Town Center area of the city of San Diego. Mid-Coast Transit Constructors will implement grading and construction of the trolley line extension on behalf of the San Diego Association of Governments (SANDAG).

Rincon’s roles on this project include the development and implementation of a Soil and Groundwater Management Plan for an approximately 11-mile stretch of the project, implementing an Aerially Deposited Lead Assessment for portions of the project within the Caltrans Right-of-Way, and managing waste disposal. Specifically, Rincon has collected soil samples along Segments 1 through 3 to evaluate soil for the presence of hazardous substances and petroleum products. Rincon utilized the data to determine if soil could be reused or if off-site disposal was necessary, and determined the appropriate waste disposal facility.

In addition, in conjunction with a DBE subcontractor, Rincon finalized the SWPPP for the SR 11 Export Site in Otay Mesa. The five-acre export site is used for importing and storing clean fill to be used in various areas of the MCCTP. Rincon also coordinates industrial hygiene services to train construction staff and provide monitoring during handling of potentially contaminated materials.

Rincon also developed a web-based map viewer to illustrate project area, soil sampling locations, and delineation of waste types. The map viewer is available to Mid-Coast Transit Constructors, via common mobile devices, and can be utilized by the client in real-time to assist with coordination of soil disposal.

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