1600 MADISON ST 2016-01-01 MF Import

Our work was performed in accordance with our workplan authorized by !he City dated June 8, 2000. The results of our site exploration are presented in this report and are subject to the limitations presented in this repoR. 2.0 RACKGROUND The subject property is located at the southeast comer of the intersec:ion of Beverly Boulevard and Madison Street in Everett, Washington (Figure I). The City has operated Fire Station Number 5 on this property for several decades. Two underground F,�el storage tanks were located on this property and used by the fire station. One tank is still in service and contains diesel fuel for the station's fire trucks. The other tank was removed in 1991 and a release of the stored gasoline was discovereu at that iime. Cuaently, the City is evaluating remedial options before redevelo»mcnt of the site (and adjacent four southern parcels) as an expanded fire station. 2.1 Site Exploratlon Background Presented below is a summary of findings from the previous site explorallons. Soil Gas Sarvey and Soil Sampling Results, Rlttenhousc-Zeman & Assaciates In July 1991, Rittenhouse-Zeman & Associates (tcZA) conducted a soil gas sure�ey and collecied seil samples in the azea of the forme: gasoline tank (at the fire station and on the adjacent property). Reportedly, approximately 850 gallons of gasoline leaked from a 1,000- gallon UST at the southwest corner of this station. The performed exploration work identified that gasoline contamination was present, but the extent of the contamination was not known. Assessment of Petroleum-Affected Soils, 5eacor Subsequent to RZA's woek, SEACOR conducted an additional exploration in August of 1991. This work included the drilling of seven soil borings nenr the former UST, conversion of two of those borings into vadose-zone monitoring wells, and the collection and analysis of soil samples. Borings were advanced to depths between 20 and 31 feet, with samples collected for analysis at depths between 16 and 31 feet. Groundwater reportedly was not discovered during this exploration. Of the analyzed soil samples, contaminated soils were 01-0105-C-RT.doc . i( SIQa�CS Copynght 2001 G-Logics, Inc. Page 3 of 14 v�� J