4808 EVERGREEN WAY SUITE A & B THE KUSHERY 2021-09-22

Phase I Environmental Site Assessment Page 7 August 28,2020 4808 Evergreen Way,Everett,Washington RG1 Project No.2020-382-1 ➢ A chimney flue was located in the boiling room,as well as old copper piping, which appear to have serviced a former oil-burning furnace (Photograph 18). The current furnace uses natural gas. ➢ Minor petroleum staining was observed on the concrete floor of the auto repair garage. The concrete floor appeared to be in good physical condition with no visible deterioration or cracking. The staining is de-minimis and is not considered a REC. - Two large overhead natural gas furnaces were located in the auto repair shop (Photographs 12 & 14). i> A loading ramp and roll-up garage door was observed next to the ASTs and stored drums, which allowed access to the auto repair shop from the west-adjoining alley (Photograph 14). In summary, based on our interior observations during reconnaissance, no staining, adverse odors, or any other indications of improper storage or release of hazardous substances or petroleum products was observed inside the inspected areas of the building, except for those outlined above. RECs observed during RGI's inspection of the interior include the following: full oil-water separator of unknown contents, two closed-in-place hydraulic hoists, and former auto-repair activities. BERs observed during RGI's inspection of the interior include the following: two partially full approximately 300 gallon ASTs containing motor oil, 55-gallon drums of unknown content with and without secondary containment. 4.4 POLYCHLORINATED BIPHENYLS(PCBS)OBSERVATIONS The Environmental Protection Agency (EPA) considers PCBs to be a possible human carcinogen. The Toxic Substance Control Act of 1976 prohibited any manufacturing of PCBs in the United States after January 1, 1979. PCBs have historically been used in the manufacture of electrical or other hydraulic equipment (for example, transformers, elevators, trash compactors, hoists), building materials (caulking, insulation), and building fixtures (for example, light ballasts, light bulbs, thermostats). Under 40 CFR 761.3, the mineral oil contained in untested transformers is assumed to be "PCB- contaminated" (50 to 499 parts per million PCB). The continued use of this equipment is authorized by the EPA. Per ASTM E1527-13, this section does not evaluate light ballasts. Two single-post in-ground hydraulic hoists were installed in 1969 that appear to have been closed-in-place (Photograph 17) instead of being removed from the Property. . No other indications of PCB-containing equipment or suspect electrical or hydraulic equipment were observed on the Property. 4.5 UNDERGROUND AND ABOVEGROUND STORAGE TANKS(USTs AND ASTs)OBSERVATIONS RGI's UST and AST survey included a reconnaissance of the Property to identify indications of existing or former USTs or ASTs, such as vent pipes, fill pipes, product lines, concrete pads, or asphalt patches (see Section 6.2 for a discussion of municipal records). 1Mi 1 �- RILEYGROUP