3003 COLBY AVE COURTYARD BY MARRIOTT 2021-03-09

I Proposed Everett Hotel Property Environmental Site Characterization and IEverett, Washington Remediation Recommendations caved to within approximately 28 feet of the ground surface. The volume of water prese - s I ,---- st fu ficient collection of a sample. Given the very limited volume of water and that no ground water was observed during drilling, it appears that this water likely originated from a I thin perched zone within the till. Grou_sup water seepage_w_as not encountered_in any of_the other borings drilled for our study. It should be noted that the depth and occurrence of ground water seepage may vary in response to changes in season, precipitation, site use, and other Ifactors. I2.0 RELEASE INFORMATION/SITE CHARACTERIZATION 2.1 Historical Site Information 1 A Phase I Environmental Site Assessment (ESA) was completed for the property byAssociated P p P Y I Earth Sciences, Inc. (AESI) in January of 2009. The findings of the Phase I ESA were provided in our report titled "Phase I Environmental Site Assessment, Proposed Everett Hotel," prepared for Touchstone Corporation, dated January 20, 2009. Records reviewed for I the Phase I ESA indicated that the site was formerly occupied by the Allen Buick building, which was reportedlydem4liAeltin....1,925. Historic building department records, provided to AESI by the City of Everett, included bidding documents related to the building demolition. I During our review of these documents, we noted references to four,gasoline USTs ,and a, fuel dispenser on the site. The removal of these features was included as a task in the proposal to— -- demolish the building; however, no documentation confirming removal of the USTs, the I condition of the tanks at that time, or existing soil conditions were found in the building records. A site plan in the records indicated that two of the USTs were located along the eastern margin of the property adjacent to the alley, and the other two USTs were located near I the northwestern corner of the site. The fuel dispenser was located on the sidewalk along Colby Avenue, adjacent to the west side of the property. I2.2 Environmental Characterization I Following completion of the Phase I ESA, AESI conducted a Phase II ESA to further evaluate if the site had been adversely impacted by petroleum constituents related to the former USTs and fuel dispenser. Drilling for the Phase II ESA was conducted in January 2009 and included I exploration borings EB-1 through EB-5. This work was conducted on behalf of Touchstone Corporation who has proposed to redevelop the site as a hotel. Exploration borings EB-1 and EB-2 were drilled in the vicinity of the reported USTs near the eastern site margin and I northwestern property corner, respectively. Exploration boring EB-5 was drilled on the site, approximately 25 feet east of the former fuel dispenser in the Colby Avenue sidewalk. 1 Prior to drilling for the Phase II ESA, a magnetometer survey of the former UST locations was conducted by a private utility locating firm. Materials detectable with the magnetometer are limited to ferrous metals. USTs at the time of the Allen Buick building demolition were I August 24, 2009 ASSOCIATED EARTH SCIENCES, INC. TJP/tb-KV090168A5-Projects1200901681KVIWP Page 5