SR2400516 - Laserfiche WebLink

Home Browse Search

Table 7: Alternatives Analysis Geosyntec Consultants Rough and Ready Island, Site 47 Port of Stockton EVALUATION Overall Protection of Human Health Compliance with Long-Term Effectiveness and Short-Term Effectiveness Reduction of Toxicity, Implementability Cost' CRITERIA and the Environment ARARs Permanence Mobility,and Volume Through Treatment ALTERNATIVE 5 Yes Yes High High Low Medium Medium Expanded Alternative 5 would isolate COC/COEC- Alternative 5 is Alternative 5 achieves the RAOs by Alternative 5 presents H&S hazards during Provides no treatment to Alternative 5 uses standard construction equipment,labor, Excavation with On- impacted soils and would reduce expected to comply isolating COC/COEC-impacted soils construction(i.e.,grading and cover reduce toxicity,mobility,or and materials,which are readily available.Engineering Site Consolidation, exposure to humans and ecological with all identified from human and ecological receptors. installation).However,worker and volume of contaminants. controls are required to manage erosion,stormwater runoff, Existing Durable receptors.Land use and activities would chemical-, Regular inspection and maintenance are community protection will be implemented dust,and worker exposure to COCs/COECs.Access around Cover,Expanded be restricted to minimize exposure to location-,and action- required to remain effective. ICs would via H&S(e.g.,appropriate PPE)and the railroad running through the northwest corner of Site 47 New Durable Cover, remaining COCs/COECs in soil. specific ARARs. minimize long-term exposure to engineering controls(e.g.,dust suppression would need to be coordinated with the operator,Central and Institutional remaining COCs/COECs in soil. measures).RAOs would be achieved California Traction Company.Required regulatory ControlS2 immediately following remedy construction. coordination and plans to implement the remedy should not cause delays. Notes 1.Adjectival cost ratings are based on comparison of estimated net present value cost for each alternative,which are summarized in Table 8. 2.All alternatives include the implementation of a land-use covenant,similar to the restrictions described in the pre-decisional land-use covenant prepared in accordance with the 2003 Consent Agreement. Abbreviations ARARs=Applicable,or Relevant and Appropriate Requirements ICs=institutional controls COCs=constituents of concern PPE=personal protective equipment COECs=constituents of ecological concern RAOs=remedial action objectives H&S=health and safety Page 2 of 2