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<br />with the DTPP EIR conclusion and found the impacts related to the accidental release of hazardous materials would
<br />be less than significant.
<br /> Phase I Environmental Site Assessments
<br /> Two site-specific Phase I Environmental Site Assessments (Phase I ESA) have been prepared for the two parcels
<br />composing the 1900 Broadway project component site (Phase I Environmental Site Assessment, Wells Fargo, 1900
<br />Broadway Street, Redwood City, California, 94063, CBRE Project No. PC90251451-101; CBRE, Inc.; April 17, 2019)
<br />and (Phase I Environmental Site Assessment, Spring/Marshall Parklet, APN: 053-231-200, Redwood City, California,
<br />94063, CBRE Project No. PC90251451-102; CBRE, Inc.; April 17, 2019). The Phase I ESAs for the 1900 Broadway
<br />project component were conducted within the scope and limitations of the ASTM International’s Standard Practice
<br />for Environmental Site Assessments: Phase 1 Environmental Site Assessment Process E1527-13. The information
<br />below is taken directly from the 1900 Broadway Phase I ESA and appendices and the Spring/Marshall Parklet Phase
<br />I ESA and appendices.
<br /> 1900 Broadway
<br /> The current two-story office/bank building at 1900 Broadway was constructed in 1974 (Phase I ESA, p. 1). The Phase
<br />I ESA discusses the site of the current building as well as adjacent and nearby properties. CBRE, Inc. (“CBRE”)
<br />conducted a site visit, review of readily available information and environmental data relating to the property;
<br />interviews with persons with knowledge of the site; review of maps, aerial photographs of the site; review of records
<br />maintained by federal, state, and local regulatory agencies; and a “Tier I” (non-intrusive) vapor encroachment
<br />screening (VES). CBRE evaluated information on recognized environmental conditions (RECs)12 in connection with
<br />the property. CBRE also evaluated potential business environmental risks (BER)13, including asbestos-containing
<br />materials (ACMs) and lead-based paint (LBP), in connection with the property.
<br /> A VES initial screening was conducted to identify the potential for a vapor encroachment condition (VEC) in
<br />connection with the site with respect to chemicals of concern that may migrate into the vadose zone14 of the site as a
<br />result of contaminated soil and/or groundwater on or near the site. The results of the Tier I VES identified several
<br />impacted offsite properties (p. 44). The Phase I ESA, concluded, however, based on the hydrogeology, groundwater
<br />flow direction, furthest known extent of contamination, and distance from the site, none of the identified properties
<br />are suspected of having petroleum or chemical contaminant plumes that would be identified as a VEC. Therefore, a
<br />VEC was ruled out.
<br /> The Phase I ESA concluded there is no evidence of RECs, including controlled or historical RECs, in connection with
<br />the 1900 Broadway site (p. 1); however, ACM and LBP were identified as BERs, as described below.
<br /> Based on the age of the onsite building at 1900 Broadway, the resilient floor finish assemblies, wallboard assemblies,
<br />acoustical ceiling tiles, built-up roofing materials, caulking, and mastics may contain asbestos (p. 1). ACM may also
<br />exist in inaccessible areas behind walls or within pipe chases. Because the project component proposes demolition of
<br />the existing building and redevelopment of the site, the Phase I ESA concluded a pre-demolition ACM survey should
<br />be conducted for waste characterization purposes (p. 2). Based on the age of the onsite building, there is potential for
<br />the building to contain LBP. Because the project component proposed demolition of the existing building and
<br />redevelopment of the site, painted surface should be surveyed for lead content prior to building demolition (p. 40).
<br /> Spring/Marshall Parklet
<br /> This is a 0.5-acre parcel designated by the City of Redwood City as the Spring/Marshall Parklet (Phase I ESA, p. 1).
<br />The site contains several trees and other vegetation and does not contain any structures. The site has been used as a
<br />
<br />12 The term “recognized environmental conditions (RECs)” is defined as, “the presence or likely presence of any hazardous
<br />substance or petroleum products in, on, or at a property: (1) due to release to the environment; (2) under conditions indicative
<br />of a release to the environment; or (3) under conditions that pose a materials threat of a future release to the environment. De
<br />minimis conditions are not recognized environmental conditions.” (ASTM Standard E 1527-13)
<br />13 The term “business environmental risk (BER)” is defined as, “a risk which can have a material environmental or
<br />environmentally-driven impact on the business associated with the current or planned use of a parcel of commercial real
<br />estate, not necessarily limited to those environmental issues required to be investigated per the ASTM standard.” (ASTM
<br />Standard E 1527-13)
<br />14 The “vadose zone” is defined by the United States Geological Survey (USGS) as the portion of the subsurface above the
<br />water table and below the ground surface. The vadose zone sometimes contains air as well as water in the pores. (USGS,
<br />2013, https://wwwrcamnl.wr.usgs.gov/uzf/unsatflow/unsatflow.html)
<br />ATTY/RESO.0074/CC RESO 847 WOODSIDE (CEQA) - EXHIBIT 1 - CEQA CONSISTENCY CHECKLIST
<br />REV: 10-23-24 VR
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