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Kristin Stout (cont.) Project Experience (Cont.) Commercial Property, Oakland, CA Ms. Stout performed a Phase I ESA and a hazardous materials survey for an unoccupied, 17,222ft2, two-story commercial building constructed in the late 1930s. The building was formerly occupied by Norman Mark's Health Club. Adjoining properties to the north and southwest of the site had leaking underground storage cases in varying stages from assessment to site closure. We identified these as a REC. We conducted a soil vapor survey to determine potential vapor encroachment conditions (VECs). Four soil vapor pins were advanced into the sub -slab within the building and four summa canisters of sub -slab vapor were collected. The samples were analyzed for volatile organic compounds (VOCs) by EPA Method TO -15. While VOCs were detected in the soil vapor samples, the results were below the San Francisco Bay Regional Water Quality Control Board's Tier 1 Environmental Screening Levels (ESLs) and Subslab/Soil Gas Vapor Intrusion Human Health Risk Levels for residential and commercial/industrial land uses. Terracon recommended no further action in regard to the potential VEC. Lower Sunrise, Phase I ESA and Limited Phase II ESA, Rancho Cordova, CA A Phase I ESA was prepared for the proposed purchase of the property. Based on the findings of a Phase I ESA, a Limited Phase II ESA was proposed. The Phase II ESA found lead in concentrations in excess of regulatory screening numbers. ENERCON revisited the subject property with a Thermo NitonTM XL2 GOLOO X-ray Fluorescence (XRF) Analyzer and was able to determine the vertical extent of lead impacts on the subject property. 1-15 Corridor Improvement Project, Murrieta to Riverside/San Bernardino County Line, Phase I ESA, Riverside County, CA Project Manager for the ISA and ADL Study for the Initial Study/Environmental Assessment (IS/EA). The Hazardous Waste ISA reviewed potentially hazardous material/waste impacts associated with the proposed project. Information developed during the ISA will be used to evaluate human health risk during construction and possible legal or logistical implications associated with contaminated sites and potential right-of-way acquisitions along the alignment. The ADL study required 1,703 borings and collection of 6,443 samples within medians, shoulders and ramps. Ms. Stout analyzed the data and conducted statistical analysis to determine if the soil would be suitable for reuse under the DTSC's ADL Variance. Ms. Stout co-authored a proprietary database for sample documentation integrating field input with GPS coordinates to locate, field verify,•and collect data. The GPS data was downloaded daily and integrated using GIS. The 1-15 CIP project was re -scoped in 2011/2012 to a "right -sized" project which extends from the SR -74 in south Corona to the SR -60 in Ontario. Ms. Stout revised the ISA and ADL Surveys to address the new alignment and conducted asbestos and lead based paint studies on the bridges which will be impacted. Florin Road ADL Survey Project Manager for an ADL Survey associated with the Florin Road Improvement Project. Obtained an encroachment permit for sampling in the shoulder of the road and used a traffic control service. The 17 soil borings were completed in one day and the results indicated that the project area was not impacted by lead in excess of regulatory guidelines and can be reused onsite. High Rise Building, Oakland, CA Ms. Stout was the project manager for a Phase I ESA conducted on an approximately 0.34 -acre tract of land improved with the 22 - story, approximately 89,250 -square foot (SF) office building constructed in 1922/23. Historically, the site was developed with the existing Bruener Building and an additional building in 1907. The additional building was demolished, and the site was redeveloped with the existing 22 -story Tribune Tower building in 1922/1923. The Bruener Building and Tribune Tower were modified into one building at a later date. The site operated as a large-scale newspaper printing facility from at least 1924 through 2007 and has operated with various office -use businesses from 2007 through the present. The printing operations at the site included the storage of ink in large aboveground storage tanks (ASTs) in the sub -basement of the site building, along with photo processing chemicals, oils and lubricants, and petroleum solvents. A Site Cleanup Case was opened at the site in 2001 for a release of hydrocarbon -impacts to soil located in the sub -basement of the site building. Closure for the Site Cleanup Case was requested from the San Francisco Bay Regional Water Quality Control Board (SFBRWQCB); however, documentation for the closure of the Site Cleanup case was not on file with the SFBRWQCB. With our assistance, the Site Cleanup case was closed, and we were able to designate the former Site Cleanup case as a controlled recognized environmental condition (CREC). it