DTSC will review characterization studies to determine constituents of concern to be remediated, and will review human health risk assessments to determine appropriate cleanup standards and remediation technologies.
[See page 5-117 for the original comment] See Appendix F.5 of the Draft EIR, which includes a station plan from 1950 identifying the former rail yard and the location of many of its associated structures. Draft EIR page 3-6 (Figure 3-4, Existing Project Site) also identifies the three former railroad structures on a map (Roundhouse, Lazzari Fuel Company Building, Machinery & Equipment Building). Draft EIR page 3-16 (Figure 3-5, Former Railyard Site Over Time), shows the location of former railroad structures on historic topographic maps from to 1915 to 1995. Finally, Figures 4.D-3 – 6 on Draft EIR pages 4.D- 9–13, provide historical and contemporary photos of the former railroad structures. In addition, any contamination caused by individual uses within the former railyard would have been identified as part of previous hazardous materials investigations within the railyard. Thus, provision of additional mapping of specific buildings within the former railyard would not add to understanding of the area’s cultural resources, nor would it add to understanding of site contamination.
[See page 5-117 for the original comment] Paragraph 1 on page 4.G-48 is intended to identify the responsible party for the underlying groundwater contamination relative to proposed Baylands development, and states that groundwater contamination within the Brisbane portion of OU-1 largely originated from the San Francisco (Schlage Lock) portion of OU-1. Irrespective of the responsible party for the contamination, investigations, and remedial actions at OU-1 for the soil matrix, groundwater, and soil vapor have been ongoing since 1982. The landowner of the Brisbane portion of OU-1 will be responsible for remediation prior to physical development. Additionally, since OU-1 is under the oversight of the DTSC, cleanup of the affected media will be approved by DTSC.
The first paragraph on page 4.G-48 is revised to read as follows.
TheGroundwater contamination the Brisbane portion of OU-1 largely originated from the San Francisco portion of OU-1 (Schlage Lock property) north of the Project Siteconsists of soil and groundwater impacted by VOCs that underlie a portion of OU-1.The Brisbane (Project Site) portion of OU-1 contains soil and groundwater impacted by contaminants of concern other than VOCs, including arsenic, lead, cadmium, and mercury in the soil, and nickel, total chromium, and hexavalent chromium in groundwater.Groundwater contamination within the Brisbane portion of OU-1 largely originated from the San Francisco portion of OU-1 (Schlage Lock property).