7301 EVERGREEN WAY EVERETT CHEVROLET 2017-03-01

• Site Description This enclosure provides Ecology s understanding and interpretation of Site conditions; and forms the basis for the'opinions'expressed in the:letter • • Site Defin •ition.. The Site zs defined by the extent of releases to soil and ground water of petroleum (TPD O),,:associated with an automobile dealership operation at 7300 Evergreen Way,Ev rett,WA (Property): The.Property and the Site.are shown.on the attached Site Diagrams.: • Area Description The Property, is located at 7300.Evergreen Way u1 Everett,Snohomish County, • Area The Site:consists of an approximate 4-acre irregularly shaped piece of land located in a mixed `commercial'and area o f Everett, Snohomish County: The:Snohomish County,Assessor tax parcel numbers for the Property which•comprises the Site are 208507-0027.038 00 and 003939-001- 005-01 with a description of.Township 28N;Range 05E;Section 07,.Quarter-Quarter.NW.,The ro e . coordinates are Latitude 47 Degrees;55 Minutes, 54.3 Seconds,Longitude 122 Degrees,. p prty 13 Minutes, 11.2 Seconds Property History and Current Use: The Site is currently an inactive automobile Beale• ship.,Four ;buildings are located on the property,the remainder of the property:is surfaced with asphalt.for vehi•cle parking::The property was developed for residential:use sometime prior to 1947 Since 1973,'and possibly earlier,"the property has been occupied by automobile dealerships:; Aerial photography from 1947, 1955, and 1969 reveal single family residenc •es Aerial photographs from. 1976 and subsequent years,until the present,picture the Property�withahe curre•nt developments ; Operation of the S•ite as a new and used car showroom,and automobile service departmenf ceased in • mid 20:1°- Contaminant Sources and History of Releases: The potential contaminant sources for this Site include up to 22 hydraulic hoists(lifts),which are believed to be the sources of the releases. Two • underground storage tanks (USTs)also were present prior to their removal in'1988 -The approximate location of the;Site is'shown on the;`encl"osed figu• res In 1994,three soil samples collected contained contamination exceeding MICA Method A`cleanup - levels:for oil-range:petroleum hydrocarbons Three hydraulic:hoists near the contamtnatzon were P ;taken out of service. In 1999,ten.-elow ow-grade'h drauhc lifts were removed and ten.additional below grade hydraulic lifts y_, were closed tri place_ Soil-' the io Efts of the lifts was over.-excavated to depths of 5 to 11 feet bgs Approximately 459 tons of c• ontaminated soil vias excavated and transported off site for disposal,but add•itional contaminated soil above,cleanup leve• ls was;left in place Contaminated soils were observed m.contact,with groundwater prior to excavation Physiographic Setting. The topography of the Site slopes moderately toward the north northeast Most'of the.Site is 'paved with asphalt and concrete Zoning is mixed '.--of •the north northeast into Pigeon Creek (which is located .approximately:150 feet due east),.and eventually Port Gardner of Possession .Sound, a part of Puget Sound. "A series of catch basins are....located throughout the property