WORK PLANS - Laserfiche WebLink

Home Browse Search

Reuse of Excavated Soil GEOMATRIX Because this affected soil does not pose an unacceptable risk to human health or the environment, it can be re-used at the site. However, a petroleum hydrocarbon odor and crude/Bunker C oil residue may be present in this soil,therefore consideration should be given to Where the soil is placed. Potential reuse options include placement of the soil back into in the subsurface(e.g., in trenches and other excavations) or underneath surface coverings (e.g., roads, parking areas, or other paved structures). The following guidelines are recommended: (1) if used as trench backfill, do not place affected soil in contact with underground utilities; (2) do not place affected soil as backfill for excavations if geotechnical properties are insufficient; and (3) do not place shallower than 2 feet below ground surface unless covered by pavement. If affected soil cannot be reused in the subsurface or underneath surface coverings, the soil should be stockpiled separately from other non-affected soil excavated at the site and Chevron should be contacted(see contact list on last page). If affected soil is disposed of off site without r r Chevron's involvement, Chevron will not be responsible for any cost or liability associated with such disposal. In addition, it is important to consult with the disposal facility regarding potential restrictions for accepting petroleum hydrocarbon-affected soil. According to the San Joaquin Count Air Pollution Control District, no permit to stockpile this soil is required by them. Y Health and Safety Issues Because the affected soil does not pose a human health threat, construction workers or others 1 who encounter and handle affected soil do not require any unique health and safety training above standard requirements for performing their job. Proposition 65 Evaluation Based upon the results of the screening health risk assessment,the soil conditions at the Dividend property pose no significant risk as defined under Proposition 65, and are therefore not subject to this law. C2677\SOILPLAN.DOC 4