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20140113 PH1 Envir Site Assessment 11132008 Adapt Engineering, Inc. 615—8`"Avenue South Seattle,Washington 98104 Tel(206)654-7045 Fax(206)654-7048 � � • � www.adaptengr.com November 13, 2008 Adapt Project No. WA07-14680-PH1 T-Mobile 19807 North Creek Parkway North Suite 101 Bothell, Washington 98011 Attention: Holly Camp Subject: Phase I Environmental Site Assessment SE05198D Wilkenson Road-Railway 16220 Railway Road Southeast Yelm, Washington 98597 Dear Ms. Camp: Adapt Engineering, Inc. (Adapt) is pleased to present the results of our Phase I Environmental Site Assessment for the T-Mobile project at the above-referenced property. Authorization to perform this project was given in the form of the T-Mobile purchase order number 4550442239. Adapt appreciates the opportunity to be of service to you on this project. Should you have any questions concerning this report, or if we can assist you in any way, please feel free to contact us at (206) 654-7045. Respectfully Submitted, Adapt Engineering, Inc. � � am E. Es lona Senior Project Manager - - Adapt Engineering, Inc. TABLE OF CONTENTS 1.0 EXECUTIVE SUMMARY ...................................................................................................1 2.0 INTRODUCTION................................................................................................................2 2.1 PURPOSE.........................................................................................................................2 2.2 SCOPE OF WORK .............................................................................................................2 2.3 SIGNIFICANTASSUMPTIONS..............................................................................................3 2.4 LIMITATIONS AND EXCEPTIONS..........................................................................................3 2.5 SPECIAL TERMS AND CONDITIONS ....................................................................................4 2.6 USER RELIANCE...............................................................................................................4 3.0 SITE AND PROJECT DESCRIPTION ...............................................................................4 3.1 LOCATION AND LEGAL DESCRIPTION.................................................................................4 3.2 SITE AND VICINITY CHARACTERISTICS...............................................................................4 3.3 CURRENT USES OF THE PROPERTY ..................................................................................4 3.4 DESCRIPTION OF IMPROVEMENTS .....................................................................................5 3.5 CURRENT USES OF ADJOINING PROPERTIES.....................................................................5 3.6 PROPOSED PROJECT........................................................................................................5 4.0 USER PROVIDED INFORMATION ...................................................................................6 4.1 TITLE RECORDS ...............................................................................................................6 4.2 VALUATION REDUCTION FOR ENVIRONMENTAL ISSUES ......................................................6 4.3 OWNER, PROPERTY MANAGER,AND OCCUPANT INFORMATION..........................................7 4.4 REASON FOR PERFORMING THE PHASE I...........................................................................7 5.0 PHYSICAL SETTING.........................................................................................................7 5.1 REGIONAL PHYSIOGRAPHIC CONDITIONS ..........................................................................7 5.2 GEOLOGIC AND SOIL CONDITIONS.....................................................................................7 5.3 GROUNDWATER CONDITIONS............................................................................................8 5.4 DRINKING WATER SUPPLIES AND WATER WELLS...............................................................8 6.0 HISTORICAL USE INFORMATION ...................................................................................9 6.1 HISTORICAL SOURCES......................................................................................................9 6.2 HISTORICAL FINDINGS....................................................................................................1 O 7.0 RESULTS OF RECONNAISSANCE................................................................................11 7.1 ON-SITE INSPECTION OBSERVATIONS.............................................................................11 7.2 ADJACENT SITE AND VICINITY OBSERVATIONS.................................................................13 8.0 STANDARD REGULATORY AGENCY ENVIRONMENTAL RECORD SOURCES ........14 8.1 SUPERFUND PROGRAM CERCLIS DATABASE.................................................................14 8.2 RESOURCE CONSERVATION AND RECOVERY ACT(RCRA� REPORTS...............................15 8.3 EMERGENCY RESPONSE NOTIFICATION SYSTEM SPILL REPORT ......................................16 8.4 STATE HAZARDOUS SUBSTANCE SITES...........................................................................16 8.5 STATE NO FURTHER ACTION (NFA� HAZARDOUS SUBSTANCE SITES ...............................16 8.6 INSTITUTIONAL AND ENGINEERING CONTROL SITES.........................................................16 8.7 BROWNFIELDS................................................................................................................17 8.8 UNDERGROUND STORAGE TANKS...................................................................................17 T-Mobile November 13,2008 Adapt Enqineerinq, Inc. 8.9 LEAKING UNDERGROUND STORAGE TANKS.....................................................................17 8.1 O VOLUNTARY CLEANUP SITES..........................................................................................17 8.11 LANDFILLS......................................................................................................................17 8.12 TRIBAL RECORDS...........................................................................................................18 8.13 ADDITIONAL ENVIRONMENTAL RECORD SOURCES...........................................................18 9.0 INTERVIEWS...................................................................................................................18 10.0 FINDINGS, OPINION, CONCLUSIONS AND DATA GAPS ............................................18 11.0 DEVIATIONS ...................................................................................................................18 12.0 ADDITIONAL SERVICES ................................................................................................18 13.0 REFERENCES.................................................................................................................19 14.0 SIGNATURES OF ENVIRONMENTAL PROFESSIONALS.............................................21 Attachments: Figure 1 Location Map Figure 2 Street Map Figure 3 Topographic Map Figure 4 Parcel Map Figure 5 2006 Aerial Photograph —Vicinity Figure 6 2006 Aerial Photograph — Host Parcel Figure 7 Site &Vicinity Plan Figure 8 Proposed Lease Area Detail Plan Appendix A Photographs Appendix B ASTM E1527-05 User Questionnaire T-Mobile November 13,2008 . _. Adapt Engineering, Inc. 1.0 EXECUTIVE SUMMARY Adapt is pleased to present the results of the Phase I Environmental Site Assessment (Phase I) for a portion of a site (host parcel) that T-Mobile proposes to lease (proposed lease area). The Phase I consisted of gathering reasonably ascertainable information in general accordance with the American Society for Testing and Materials (ASTM) Standard Practice for Phase I Environmental Site Assessments (ASTM Standard E 1527-05). Following is a summary of the Phase I: Site and Project Description: The project site is situated on a host parcel located 16220 Railway Road Southeast in Yelm, Thurston County, Washington. The host parcel is roughly triangular shaped with north, southeast, and southwest corners; and northeast, south, and northwest sides. The parcel covers a reported 9.62 acres. At the southeast corner of the parcel are a single-family residence, mobile home, and barn. The remainder of the property is undeveloped and covered with trees, brush, and grasses with a meadow covering most of the center and west portions of the property. T-Mobile proposes to lease a 50-foot-square (2,500 square feet) area approximately 100 feet northwest of the host parcel buildings in an apparent former pasture area currently covered with trees, grasses, and brush. Within the lease area a 40-foot-square (1,600 square feet) equipment compound will be developed and which will include a 150-foot monopole, pad- mounted equipment cabinets (including a base transmitting station), utility H-frame, generator and associated propane tank. Chain-link fencing will enclose the compound and a 20-foot-wide landscape buffer will surround the fencing. The monopole will have a triangular antenna array platform at the top of the monopole with six panel antennas mounted to the platform. An access road running due north-south will be constructed to connect the compound with Railway Road Southeast south of the host parcel. The project will tap electrical and telecommunication utilities within the Railway Road Southeast right-of-way with the utility lines running underground along the access road to the compound. The facility will be constructed to accommodate three additional carriers (see Section 3.0). Site History: Historical research (see Section 6.0) revealed the host parcel house and barn were constructed in 1920 and the mobile home was placed on the property in the late 1960s to early 1970s. It does not appear the proposed lease area portion of the host parcel has been previously developed. The immediate surrounding area was largely rural until the mid 1960s when buildings for a current bathroom fixture manufacturing company on the northwest adjacent parcel were constructed. Additional commercial development has occurred to the west of the host parcel. The areas to the east and south of the host parcel have been residentially developed. Regulatory Agency Information: A review of regulatory agency lists and databases (see Section 5.0) revealed a number of sites or facilities within ASTM Standard E 1527-05 search distances from the host parcel with reported environmental concerns including two hazardous waste generators and an underground storage tank (UST) facility on the northwest adjacent parcel. It appears possible releases associated with the adjacent hazardous waste generators and the UST facility may be expected to migrate to the west or to the west-northwest, which is away from the host parcel. The review additionally revealed two contaminated properties in the greater surrounding area that have "no further action" or NFA statuses. Both facilities are reported to have completed a voluntary cleanup and considering their NFA status, it is unlikely the known contamination T-Mobile November 13,2008 Adapt Engineering, Inc. associated with the facilities would migrate to the host parcel. Additionally, the facilities are situated in positions that are hydrologically non-tributary to the host parcel, based on the topography, and are at such distances from the host parcel that it is unlikely the known contamination would affect the host parcel. Site Reconnaissance: The site reconnaissance (see Section 7.1) did not reveal the presence of the following environmental concerns on the proposed lease area portion of the host parcel: underground or above ground storage tanks containing hazardous substances; lagoons; landfills; pipelines; hazardous materials and hazardous waste storage/disposal areas including sumps, pits, ponds, drums; dead and chemically stressed vegetation; discarded electrical transformers and capacitors; groundwater monitoring wells; obvious locations of past and present chemical disposal. Though Adapt did not observe on-site indications of it, the host parcel house and mobile home are reportedly serviced by a septic system. The septic tank is reportedly located north of the mobile home and the drainfield is situated befinreen the mobile home and barn, a location that is approximately 75 to 100 feet southeast of the proposed lease area. Hazardous substances deposited into septic systems can leach into the subsurface of a site, but since the septic system is for residential use, it is unlikely to be a source of contamination. Conclusions: The Phase I did not reveal evidence of current or historical recognized environmental conditions (as defined by ASTM Practice E1527-05) or de minimis conditions associated with the host parcel, proposed lease area, and immediate surrounding area, that in Adapt's professional opinion, have resulted in a release of hazardous substances or petroleum products to the proposed lease area portion of the host parcel. Therefore, it is AdapYs professional opinion that a Phase I I Environmental Site Assessment for the proposed lease area is unwarranted at this time. The Executive Summary is intended for introductory purposes only and should be used in conjunction with the full text of this report. 2.0 INTRODUCTION 2.1 Purpose The purpose of the Phase I is to evaluate the host parcel and proposed lease area for readily apparent recognized environmental conditions. Where applicable, the Phase I also strives to satisfy one of the requirements to qualify for the innocent purchaser/landowner defense to Comprehensive Environmental Response, Compensation and Liability Act, 42, U.S.C. 9601, et seq. (CERCLA) liability. The Washington Model Toxics Control Act (MTCA), Chapter 70.105D Revised Code of Washington (RCW) has a similar provision for exemption from liability. The Phase I endeavors to provide "all appropriate inquiry into the previous ownership and uses of the property consistent with good commercial or customary practice in an effort to minimize liability' as stated in CERCLA and MTCA. 2.2 Scope of Work The scope of work for this study consisted of gathering reasonably ascertainable information in general accordance with the American Society for Testing and Materials (ASTM) Standard Practice for Phase I Environmental Site Assessments (ASTM Practice E 1527-05). Specifically, this Phase I consisted of the following: T-Mobile November 13,2008 . _ Adapt Engineerinq, Inc. • A reconnaissance to assess the host parcel, the proposed lease area, and the parcels immediately surrounding the host parcel for recognized environmental conditions. • A review of regulatory agency (U.S. Environmental Protection Agency, Washington State Department of Ecology, etc.) database lists, and individual site files, if necessary, to evaluate reported environmental concerns near the host parcel. • A survey of available local geologic and topographic maps, as well as additional information concerning public and private water sources in the project vicinity. • A review of historical sources including available business directories, aerial photographs, maps, tax assessment records, and building/planning department records. The historical information was used to evaluate past and present land use at the host parcel and immediate surrounding area to document businesses, activities, or conditions that could possibly compromise the environmental integrity of the host parcel and proposed lease area. • A limited visual evaluation for suspect asbestos-containing materials (ACMs) and lead- based paint associated with the structures that may be disturbed by T-Mobile and debris piles that may contain ACMs. • Preparation of a report documenting the findings of the Phase I and our opinion of the possibility that contamination of the host parcel and proposed lease area may exist due to on-site or nearby off-site land use activities. 2.3 Significant Assumptions This assessment is intended to provide the client with information regarding apparent suspicions of existing and potential recognized environmental conditions associated with the subject property. Adapt warrants that this Phase I Environmental Site Assessment was performed using generally accepted, good commercial and customary environmental assessment practices. Adapt believes that the information obtained from the records review and the interviews concerning the site is reliable. However, Adapt cannot and does not warrant or guarantee that the information provided by these other sources is accurate or complete. No other warranty, either implied or express is given. 2.4 Limitations and Exceptions Environmental impairment of property because of activities such as illicit or unreported dumping or spilling of hazardous or deleterious materials may not be readily apparent. The opinions and conclusions presented in this report are based on information readily available at the time of the assessment. The collection of quantitative information, such as data generated by the analysis of soil or water samples, was beyond the scope of this assessment. The Phase I does not address the ASTM Phase I non-scope issues including: radon, lead in drinking water, wetlands, regulatory compliance, cultural and historic resources, industrial hygiene, health and safety, ecological resources, endangered species, indoor air quality, biological agents, and mold. Other project specific limitations are presented in the appropriate sections of this report. T-Mobile November 13,2008 Adapt Engineering, Inc. 2.5 Special Terms and Conditions Authorization to perform this project was given in the form of the T-Mobile purchase order number 4550442239. 2.6 User Reliance This report has been prepared for the exclusive use of T-Mobile and their agents for specific application to the project site. Use or reliance upon this report by a third party is at their own risk. Adapt does not make any representation or warranty, express or implied, to such other parties as to the accuracy or completeness of this report or the suitability of its use by such other parties for any purpose whatever, known or unknown, to Adapt. 3.0 SITE AND PROJECT DESCRIPTION A Location Map (Figure 1), Street Map (Figure 2), Topographic Map (Figure 3), Parcel Map (Figure 4), 2006 Aerial Photograph - Vicinity (Figure 5), 2006 Aerial Photograph — Host Parcel (Figure 6), Site & Vicinity Plan (Figure 7), and Lease Area Detail Plan (Figure 8) are attached at the end of the report. Photographs are included in Appendix A. Unless noted otherwise, the property and building characteristic information (acreage, building square footage, construction dates), and abbreviated legal description presented in Section 3.0 were obtained from online Thurston County Assessor records. 3.1 Location and Legal Description The host parcel is located at located at 16220 Railway Road Southeast in Yelm, Thurston County, Washington (Section 19-Township 17 North-Range 2 East, Willamette Meridian). The abbreviated legal description of the host parcel is as follows: Section 19 Township 17 Range 2E Quarter SW NE Plat MCKENNA IRRIGATED TRACTS BLK 7 LT 5 SWLY 10F & LT 6 Document 009/044 3.2 Site and Vicinity Characteristics The host parcel is roughly triangular shaped with north, southeast, and southwest corners; and northeast, south, and northwest sides. The parcel covers a reported 9.62 acres. At the southeast corner of the parcel are a single-family residence, mobile home, and barn. The remainder of the property is undeveloped and covered with trees, brush, and grasses with a meadow covering most of the center and west portions of the property. The property is zoned Industrial and is owned by Railway Road Projects, L.L.C. According to the United States Geological Survey (USGS) 7.5-minute series topographic map "McKenna WA" (1990) the project site is at an elevation of approximately 340 feet above mean sea level and is relatively level. Construction drawings list the surveyed elevation at the proposed lease area as 342 feet. 3.3 Current Uses of the Property The primary use of the host parcel is residential. T-Mobile November 13,2008 _ . Adapt Engineering, Inc. 3.4 Description of Improvements The host parcel house is one-story, of wood-frame construction, and has 1,509 square feet. The house was constructed in 1930 and has an electric-based heating system. The house is reportedly serviced by a septic system and on-site well. The barn is of wood-frame construction, covers 2,000 square feet, and has a 1920 construction date. Since the mobile home is personal property, it is not listed in the tax assessment records; however, the home has an estimated 750 square feet. Area and host parcel utilities include electrical power (Puget Sound Energy) and telephone (Qwest Communications). 3.5 Current Uses of Adjoining Properties The host parcel is within a transitional area with residences to the south and east and commercial uses to the north and west with the surrounding properties developed as noted below. Northwest The host parcel is bordered on the northwest by a railroad right-of-way and Northern Pacific Road Northwest, beyond which is a 26.01-acre parcel with a bathroom fixture manufacturing facility (Lasco Bathware) and a truck leasing business. Northeast A 4.83-acre parcel borders the northeast side of the host parcel. The parcel is owed by Puget Sound Energy and an electrical substation is on the southern end of the property, adjacent to the east of the host parcel house. The remainder of the northeast-adjacent parcel is undeveloped. South Railway Road Southeast borders the south side of the host parcel, beyond which is a neighborhood of single-family residences. West Rhoton Road Southeast and a railroad right-of-way border the west side of the host parcel, beyond which is a 4.8 acre parcel with a warehouse occupied by a propane distributor(Cenex). 3.6 Proposed Project According to construction drawings by (dated February 11, 2008), T-Mobile proposes to lease a 50-foot-square (2,500 square feet) area approximately 100 feet northwest of the host parcel buildings in an apparent former pasture area currently covered with trees, grasses, and brush. Within the lease area a 40-foot-square (1,600 square feet) equipment compound will be developed and which will include a 150-foot monopole, pad-mounted equipment cabinets (including a base transmitting station), utility H-frame, generator and associated propane tank. Chain-link fencing will enclose the compound and a 20-foot-wide landscape buffer will surround T-Mobile November 13,2008 Adapt Engineerinq, Inc. the fencing. The monopole will have a triangular antenna array platform at the top of the monopole with six panel antennas mounted to the platform. An access road running due north- south will be constructed to connect the compound with Railway Road Southeast south of the host parcel. The project will tap electrical and telecommunication utilities within the Railway Road Southeast right-of-way with the utility lines running underground along the access road to the compound. The facility will be constructed to accommodate three additional carriers. 4.0 USER PROVIDED INFORMATION T-Mobile is the User of the Phase I presented herein and the User is obligated under ASTM Practice E 1527-05 to provide the Environmental Professional (Adapt) with information (if available) concerning the subject site or host parcel. The information is typically obtained by having the User complete the User Questionnaire, which includes questions related to the User's knowledge of: • Environmental cleanup liens that are filed or recorded against the site. • Activity and land use limitations that are in place on the site or that have been filed or recorded in a registry. • Specialized knowledge or experience related to the site or nearby properties. • Relationship of the purchase price to the fair market value of the site if it were not contaminated. • Commonly known or reasonable ascertainable information about the site such as past uses, stored chemicals, chemical spills, and environmental cleanups. • The degree of obviousness of the presence or likely presence of contamination at the site. T-Mobile is a proposed lessee that would construct and operate an unmanned wireless communications facility on a portion of the host parcel. Adapt understands that as a proposed lessee, T-Mobile's knowledge of the host parcel and the issues presented in the User Questionnaire is limited. Included in Appendix B, however, is a User Questionnaire for the host parcel. If T-Mobile has knowledge of issues raised by the questionnaire and which are not addressed by the Phase I, it would be prudent for T-Mobile to forward the completed questionnaire to Adapt for review and possible revisions to this Phase I. 4.1 Title Records Adapt was not provided with a title report-search for the host parcel for this Phase I. 4.2 Valuation Reduction for Environmental Issues T-Mobile is not purchasing the host parcel but will be a lessee. T-Mobile November 13,2008 Adapt Engineering, Inc. 4.3 Owner, Property Manager, and Occupant Information Railway Road Projects, L.L.C. owns the host parcel. Adapt was not provided with contact information for Railway Road Projects, L.L.C. thus an interview with the property owner was not completed. If an interview is completed pertinent information will be included in an addendum letter. 4.4 Reason for Performing the Phase I T-Mobile is a proposed lessee on the host parcel and the Phase I is being performed to assess for possible hazardous substance or petroleum releases on the host parcel and to secure liability protection as discussed in Section 2.1. 5.0 PHYSICAL SETTING 5.1 Regional Physiographic Conditions The host parcel is situated on the relatively level Yelm Prairie, a terrace on the south side of the Nisqually River Valley. The Nisqually River flows due northwest within two miles to the north of the host parcel. Yelm Creek, flows due northwest within approximately one-quarter-mile to the southwest of the host parcel. 5.2 Geologic and Soil Conditions According to the Washington Department of Natural Resources publication "Geologic Map of the Centralia Quadrangle, Washington" (Henry W. Schasse, 1987), the geologic unit underlying the project site is described as: Vashon outwash gravels — Recessional and proglacial, stratified pebble, cobble, and boulder gravel deposited in meltwater streams and their deltas; locally contains ice-contact deposits... The United States Department of Agriculture Soil Conservation Service's Soil Survey of Thurston County, Washington (Russell F. Pringle, 1990) was consulted for information relating to soils underlying the host parcel. The survey, which addresses soil conditions from the ground surface to a depth of five feet, indicates the soil unit underlying the proposed lease area portion of the host parcel is Spanaway gravelly sandy loam, 0 to 3 percent slopes. In part, the survey describes the soil unit as follows: This very deep, somewhat excessively drained soil is on terraces. It formed in glacial outwash and volcanic ash... Typically, the surface layer is black gravelly sandy loam about 15 inches thick. The subsoil is dark yellowish brown very gravelly loam about 5 inches thick. The substratum to a depth of 60 inches or more is dark yellowish brown extremely gravelly sand... Permeability is moderately rapid in the subsoil of the Spanaway soil and very rapid in the substratum.... Adapt completed a Geotechnical Engineering Evaluation for the proposed T-Mobile facility (Adapt Report No. WA07-14680-GEO, dated July 3, 2008). The evaluation included the advancement of one soil boring on the proposed lease area to a depth of approximately 26 feet below ground surface (bgs) on May 5, 2007. The evaluation found subsurface conditions similar to those T-Mobile November 13,2008 Adapt Engineering, Inc. described by the geology map and soil survey. Specifically, the boring revealed approximately three (3) to six (6) inches of grass and topsoil mantling medium dense to very dense, sandy gravel and cobbles with scattered boulders. At approximately 14.5-feet bgs, was medium dense to very dense, silty, sandy gravel and cobbles that extended to bottom of the approximate 26- foot boring. 5.3 Groundwater Conditions Near-surface or perched groundwater typically occurs when an underlying soil layer of less permeability prevents the downward percolation of water. Water will build up above the less permeable soil, such as glacial till, and move laterally in the more permeable overlying soils. Wet or saturated soils may also be encountered at depth due to cleaner sand and gravel zones. Groundwater conditions should be expected to fluctuate due to season, amount of precipitation, and other on-site and off-site factors. Groundwater was encountered at approximately 14.5 feet bgs in the approximate 26-foot boring that was advanced on the proposed lease area for the geotechnical engineering evaluation. Although groundwater flow direction is difficult to predict without the installation of at least three monitoring wells that measure water levels over time, an estimate of possible near-surface groundwater flow direction is provided to help evaluate potential on-site and off-site contaminant impacts. Groundwater flow direction is the path along which dissolved contaminants might migrate if present in groundwater supplies. Typically, in this region, the near-surface groundwater flow direction generally follows topography. The host parcel area slopes down to the west-northwest towards Yelm Creek, thus the flow direction of possible near-surface groundwater may be to the west-northwest. Variations in the assumed flow direction may exist that would remain uncharacterized without performing a subsurface exploration program with groundwater monitoring wells, which is beyond the Phase I scope of work. 5.4 Drinking Water Supplies and Water Wells The primary drinking water provider to the host parcel area is the Ciry of Yelm. According to the city's "Comprehensive Water Plan" (September 2002), the city obtains it drinking water supply from an aquifer underlying the city and which is tapped by three wells. Two of the wells (Wells 1 and 2) are located just over one-half-mile southeast of the host parcel at 206 — 2"d Street. The wells were reportedly drilled in 1950 and 1958 to a depth of approximately 63 feet. A third well (Well 3A) that is used on a seasonal basis is located just over one-half-mile southeast of the host parcel near the intersection of 100th Way Southeast and Green Acres Lane. Well 3A was drilled in 1999 to a depth of 50 feet. None of the three city wells appear to be situated in positions that are inferred to be hydrologically tributary of the host parcel, based on topography. According to a host parcel occupant (name not given), drinking water for the host parcel is provided by a well that is situated just to the north of the house and approximately 175 feet southeast of the proposed lease area. The wellhead is situated within a pumphouse. A second well is reportedly situated in the meadow area on the western portion of the host parcel, though its exact location is unknown. Possible hazardous substance or petroleum releases on the host parcel or proposed lease area may affect the wells. A review of water well reports on the Washington Department of Ecology's Well Log website did not reveal reports for the two host parcel wells. The review revealed ten drinking water wells located within approximately on�-half-mile of the host parcel. It appears four of the wells, may � T-Mobile November 13,2008 Adapt Engineering, Inc. be situated in positions that are hydrologically tributary of the host parcel, namely the area to the west to northwest. Possible contamination on the host parcel may affect these wells. 6.0 HISTORICAL USE INFORMATION This section is divided into finro subsections. The first subsection (Section 6.1) summarizes the various historical sources that were consulted and the second subsection (Section 6.2) is a discussion of the historical uses of the host parcel and immediate surrounding area. 6.1 Historical Sources The land use history of the host parcel and immediate surrounding area was researched utilizing the various reasonably ascertainable sources described below. Tax Assessment Records We obtained tax assessment information from the Thurston County Assessor. The parcel number for the host parcel is 64300700600. Aerial Photopraphs Adapt reviewed the following aerial photographs at Aero-Metric of Tukwila, Washington and digital aerial photograph images on the Thurston County Geodata Center website : Photopraph Date Source Color or Black 8� gase Scale White 1960 Aero-Metric B&W 1"=1,000' 1969 Aero-Metric B&W 1"=1,500' 1971 Aero-Metric B&W 1"=1,500' 1979 Aero-Metric B&W 1"=1,500' 1992 Thurston County B&W Variable 1996 Thurston County B&W Variable 2000 Thurston County B&W Variable 2002 Thurston County Color Variable 2003 Thurston County Color Variable 2005 Thurston County Color Variable 2006 Thurston County Color Variable In the review of the aerial photographs, observations are interpretative and limited to the area within approximately one-quarter-mile of the proposed lease area. The scale of each photograph did not provide a clear image of specific site characteristics. However, we were able to discern the absence and presence of structures on the proposed lease area, as well as developmental trends in the immediate subject area. Historical Maps We reviewed the 1916 USGS 30-minute topographic map "Centralia" obtained from the University of Washington Libraries' digital collection. We additionally reviewed the USGS 7.5- minute series topographic map "McKenna WA" dated 1990. T-Mobile November 13,2008 Adapt Engineering, Inc. We reviewed the on-line database collection of Sanborn Map Company fire insurance maps available through the Seattle Public Library's website. Sanborn maps, as they are commonly referred, typically detail building construction type and use, and may show underground and above ground storage tanks, chemical storage areas, and other recognized environmental conditions. The Sanborn Map Company published maps dating from 1867 to the present for various cities and towns, and therefore the maps are a good source for identifying the past uses of a property. The reviewed collection includes Sanborn maps Yelm; however, the host parcel portion of Yelm is not covered. Business Directories In an effort to document past occupants of the host parcel addresses and immediate surrounding addresses, historical business directories that include reverse street directories such as those published by R.L. Polk & Company and Cole Publications, commonly known as Polk and Cole directories are used as resources. Adapt consulted the collection of business directories at the Special Collections section of the Allen Library on the University of Washington campus in Seattle, Washington. The collection does not include business directories of Yelm. Buildinq Permits Adapt reviewed building permits for the host parcel on the City of Yelm Community Development Department website. Interviews and Other Historic Records Persons who may have information concerning environmental conditions at and surrounding the proposed lease area were interviewed. Pertinent information obtained during the interviews appears below, and in the appropriate sections of this report. Historic information was obtained from a Washington Department of Archaeology and Historic Preservation (DAHP) Historic Property Inventory Report for the host parcel house and barn. 6.2 Historical Findings The DAHP inventory report indicates the McKenna Lumber Company platted the host parcel in 1920. The company operated a mill in the area that was not situated on the host parcel. The company sold the property to L.O. Cochrane, a justice of the peace and post master. Mr. Cochrane sold the property to Ronald Smith in 1990. The 1916 USGS 30-minute topographic map "Centralia" does not show structures on the host parcel with the nearest development being the current railroad right-of-way bordering the northwest side of the host parcel. Additionally, Rhoton Road Southeast is shown west of the host parcel. The 1990 USGS 7.5-minute series topographic map "McKenna WA" shows three structures on the southeast corner of the host parcel that correspond to the house, barn, and mobile home. A well is additionally denoted on the south-center portion of the host parcel. The current street grid is represented except for ponovan Court Southeast to the south of the host parcel. Many of the current structures on the adjoining parcels are shown including the Lasco Bathware buildings on the northwest-adjacent parcel, the Cenex warehouse on the west- adjacent parcel, and houses and outbuildings south of the host parcel. T-Mobile November 13,2008 Adapt Engineering, Inc. A 1960 aerial photograph shows the house and barn on the host parcel. The current railroad right-of-way is evident along the northwest side of the host parcel. Most of the surrounding area appears to be cultivated or fallow fields, with few structures. South of the host parcel, beyond Railway Road Southeast, are two apparent houses. Aerial photographs dated 1969 and 1970 show the addition of a mobile home on the host parcel though it appears it may be a different home than the current one. Additionally, some of the current buildings associated with the Lasco Bathware facility on the northwest-adjacent parcel are present. A 1979 aerial photograph shows the current Cenex warehouse to the west of the host parcel. A 1992 aerial photograph shows the current house, barn, and mobile home near the southeast corner of the host parcel with the proposed lease area portion undeveloped and covered with vegetation. The current stand of trees is west of the structures with the remainder of the property a meadow as today. In the surrounding area, the substation to the northeast of the host parcel is present. A 1996 aerial photograph shows the host parcel and immediate surrounding area much as they appear in the 1992 aerial photograph, except Donovan Court Southeast has been added to the south of the host parcel, along with some of the current houses that front it. Aerial photographs dated 2002, 2003, 2005, and 2006 show the host parcel and immediate surrounding area developed much as they appear today. Tax assessment records list a 1920 construction date for the host parcel house and barn. The records indicate the house has an electric-based heating system. For the properties surrounding the host parcel, the tax records indicate 1966 and 1985 construction dates for buildings associated with the current Lasco Bathware facility on the northwest-adjacent parcel. The Cenex warehouse on the west-adjacent parcel has a 1973 construction dates. Older houses on parcels south of the host parcel have a 1901 construction date, which according to assessor personnel is a default date when the actual construction date is unknown. The newer houses south of the host parcel situated along Donovan Court Southeast have 1990s construction dates. The tax records do not list a construction date for the PSE substation. Tax assessment records indicate two of the houses south of the host parcel have oil-based heating systems. One house is approximately 350 feet southwest of the proposed lease area and the second is approximately 500 feet to the southeast. Considering the separation distances, possible significant releases from the heating oil tanks are unlikely to affect the proposed lease area portion of the host parcel. A review of host parcel permits revealed several documents related to the proposed T-Mobile facility. The review did not reveal permits or documents of an environmental concern such as a permit to remove or install an underground storage tank. 7.0 RESULTS OF RECONNAISSANCE 7.1 On-Site Inspection Observations Dylan J. Myers of Adapt conducted a reconnaissance of the host parcel and proposed lease area on November 12, 2008. The purpose of the site reconnaissance was to evaluate current conditions at the host parcel and proposed lease area and to look for recognized environmental conditions. The reconnaissance was unescorted and host parcel structures were not accessed, though portions of the barn interior were observed from the perimeter. The weather was cloudy and in the 50s. T-Mobile November 13,2008 Adapt Engineering, Inc. Table 1 summarizes Adapt's observations of the host parcel and proposed lease area. A discussion of the observed environmental concerns follows Table 1. TABLE 1 SITE RECONNAISSANCE OBSERVATIONS Observed b Ada t? Environmental Concern Proposed Host Lease Area Parcel 1. Above ground indications of underground storage tanks (USTs). No No 2. Above ground storage tanks of hazardous substances or petroleum. No No 3. Drums or other containers of hazardous substances or petroleum. No No 4. Surface staining on soil, pavement, or other surfaces that is No No indicative of a hazardous substance or etroleum release. 5. Strong, pungent, or noxious odors. No No 6. Stressed vegetation. No No 7. Pits, ponds, or lagoons used in connection with waste disposal or No No waste treatment. 8. Indication of fill including soil or solid waste. No No 9. Debris piles or illicit waste disposal including possible suspect No Yes asbestos-containin material waste. 10. Drains or sumps. No No 11. Equipment that may contain polychlorinated biphenyls (PCBs). No No 12. Wells including water wells, abandoned wells, monitoring wells, and No Yes d wells. 13. Septic systems. No Yes 14. Possible lead-based paint that may be disturbed during the No No construction of the cell site. 15. Suspect asbestos-containing materials that may be disturbed during No No the construction of the cell site. 16. Other recognized environmental conditions that indicate a possible No No hazardous substance or etroleum release. General Observations Housekeeping around the proposed lease area appeared good and Adapt did not observe readily apparent indications of hazardous substance or petroleum releases on the proposed lease area. The barn is dilapidated and has partially collapsed. Adapt noted items in and around the barn including furniture, appliances, and general residential trash. A 55-gallon drum of trash was observed adjacent to the north side of the barn and a trash pile of a cubic yard or less was a few feet to the northwest of the mobile home. None of the observed trash or discarded items appeared to be indicative of a hazardous substance or petroleum release. Septic Svstem Though Adapt did not observe on site indications of it, the host parcel house and mobile home are reportedly serviced by a septic system. The host parcel resident said a septic tank is located T-Mobile November 13,2008 Adapt Engineering, Inc. north of the mobile home and the drainfield is situated between the mobile home and barn, a location that is approximately 75 to 100 feet southeast of the proposed lease area. Hazardous substances deposited into septic systems can leach into the subsurface of a site, but since the septic system is for residential use, it is unlikely to be a source of contamination. Wells The host parcel has two drinking water wells that are discussed in Section 5.4. 7.2 Adjacent Site and Vicinity Observations Dylan J. Myers of Adapt conducted a reconnaissance of the area surrounding the host parcel on November 12, 2008. The purpose of this reconnaissance was to observe land use in the host parcel vicinity and to evaluate the potential for nearby businesses to generate, use, or store hazardous substances that may affect the host parcel. The off-site reconnaissance was generally non-intrusive with the adjoining properties observed from the proposed lease area and public rights-of-way. The use-occupants of the adjoining properties are as described in Section 3.4. Signage indicates an underground petroleum pipeline runs along the northwest side of the host parcel, within the adjoining railroad or Northern Pacific Road rights-of-way. The pipeline is at least 400 feet from the proposed lease area and a possible release from the pipeline may be expected to travel along the pipeline corridor and/or migrate westerly towards Yelm Creek, which is away from the proposed lease area. The Olympic Pipe Line Company (OPLC) owns the pipeline and based on previous conversations with OPLC personnel, the company assumes the responsibility for cleanup of pipeline releases. It should be noted though that OPLC may seek to recover cleanup costs from a party that causes a leak, such as by excavations. Because of the separation distance, this is an unlikely event for excavations related to the proposed T-Mobile project. The west-adjacent parcel is occupied by Cenex, a propane distributor. The parcel has a number of above-ground propane tanks. The propane is stored as a liquefied compressed gas. When not under pressure, or when released from a tank, propane is gaseous and is unlikely to affect site soils. In Adapt's opinion, the Cenex tanks and propane are not likely to adversely environmentally affect the host parcel. On the northeast-adjacent parcel, northeast of the host parcel house, is a PSE substation. Historically, substations utilized equipment that contained polychlorinated biphenyls (PCBs). Tim Gasser of PSE has told Adapt the company has a program that replaced PCB-containing equipment with non-PCB containing equipment. Additionally, Mr. Gasser said electrical equipment is designed and installed to contain releases and PSE takes the responsibility to cleanup releases from its equipment, though it may seek cleanup reimbursement from a party that causes a release, such as by vandalism or an accident. Viewed from the perimeter, Adapt did not observe staining of the gravel covering the substation compound. Based on our observations and Mr. Gasser's comments, it is unlikely a possible PCB release at the substation has affected the host parcel or proposed lease area. The northwest-adjacent parcel is occupied by Lasco Bathware and a truck leasing company. Both businesses are listed has hazardous waste generators and environmental concerns associated with those activities are discussed in Section 8.2. Additionally, Lasco Bathware is reported as having underground storage tanks, which is discussed in Section 8.8. T-Mobile November 13,2008 _ . _ . Adapt Engineering, Inc. Adapt did not observe readily apparent recognized environmental conditions on other parcels immediately adjoining the host parcel, that in Adapt's opinion, may adversely environmentally affect the proposed lease area portion of the host parcel. 8.0 STANDARD REGULATORY AGENCY ENVIRONMENTAL RECORD SOURCES Publicly available and practically reviewable regulatory agency reports generated from databases were reviewed with respect to the host parcel and proposed lease area. The reports, obtained from federal, state, and local government agencies, were reviewed in an effort to document reported environmental concerns that have occurred at the host parcel or in the surrounding area. Table 2 is a summary of the review that includes the regulatory agency report, the date of the report, the ASTM 1527-05 search distance, and the number of sites or facilities situated within the search distance. TABLE 2 SUMMARY OF REGULATORY AGENCY REPORTS Sites Within Report RDat rt Distan e the Search Distance National Priorities List(NPL)Sites 1 Mile 0 Delisted NPL Sites 0.5 Mile 0 Non-NPL Comprehensive Environmental Response, 10/07/08 Compensation, and Liabilit Information S stem CERCLIS Sites 0.5 Mile 0 CERCLIS No Further Remedial Action Planned (NFRAP) 0.5 Mile 0 Resource Conservation and Recovery Act(RCRA)Handlers- 08/21/08(EPA) Property p Generators 11/11/08(Ecology) & RCRA Treatment, Storage and Disposal (TSD) Facilities OS/O6/O8(EPA) 0.5 Mile 2 11/11/08(Ecology) RCRA Corrective Action Sites(CORRACTS) 08/21/08 1 Mile 0 Emergency Response Notification System (ERNS)—National Property Response Center On-Line Que S stem 11/10/08 Onl � Ecology Confirmed and Suspected Contaminated Sites(CSCS) 1 Mile 0 Report Ecology CSCS No Further Action (NFA)Sites Report 0.5 Mile 2 11/11/08 Property Institutional and Engineering Control Sites Onl � Ecology Brownfields Inventory 0.5 Mile 0 Ecology Database of Registered Underground Storage Tank Property � UST Facilities & Ecology's Database of Leaking Underground Storage Tank 11/11/08 0.5 Mile 0 LUST Facilities Voluntary Cleanup Program(VCP), Independent Remedial Action 0.5 Mile 2 Plan IRAP , and Inde endent Cleanup Sites Ecology's Solid Waste in Washington— 15`h Annual Status Report Oct 2006 0.5 Mile 0 8.1 Superfund Program CERCLIS Database The Comprehensive Environmental Response, Compensation and Liability Information System (CERCLIS) is the national database and management system EPA uses to track activities at hazardous waste sites considered for cleanup under the Superfund Program. The database includes the National Priorities List (NPL) of sites with the highest priority for cleanup, sites that have been delisted from the NPL, sites that are being assessed for possible inclusion on the � T-Mobile November 13,2008 Adapt Engineering, Inc. NPL, and sites with no further remediate action planned (NFRAP). Adapt used the EPA's "Search Superfund Site Information"website to query the CERCLIS database for sites within the appropriate ASTM search distance. NPL Sites Search Superfund Site Information did not return NPL sites located within approximately one mile of the host parcel. Delisted NPL, Non-NPL CERCLIS, and NFRAP Sites Search Superfund Site Information did not return delisted NPL, Non-NPL CERCLIS, or NFRAP sites located within approximately one-half-mile of the host parcel. 8.2 Resource Conservation and Recovery Act (RCRA) Reports The Resource Conservation and Recovery Act (RCRA) was enacted to protect human health and the environment from the potential hazards of waste disposal and to ensure that wastes are managed in an environmentally sound manner. In general, all generators, transporters, treaters, storers, and disposers of hazardous waste are required to provide information about their activities to state environmental agencies, such as Ecology. These agencies then pass on the information to the EPA. EPA Region 10 maintains separate reports of regulated handlers; treatment, storage, and disposal (TSD) facilities; and corrective action sites (CORRACTS). Ecology maintains a separate database of hazardous waste generators and TSD facilities that is accessible via their web-based Facility/Site Identification (F/SID) System. RCRA Handlers-Generators A query of Ecology's F/SID System and a review of the EPA Region 10 regulated handlers report did not reveal a RCRA hazardous waste handler-generator facility on the host parcel; however, finro generators are listed as occupying an adjoining parcel. One facility is listed as LASCO BATHWARE at 801 NORTHERN PACIFIC and the second facility is listed as PENSKE TRUCK LEASING CO LP at 801 NORTHERN PACIFIC RD BLDG 2. The address of both facilities corresponds to the parcel adjacent to the northwest of the host parcel, on the opposite side of Northern Pacific Road Southeast. The Lasco business is a small quantity generator and the Penske business is a conditionally exempt generator. As noted in Section 3.5, the northwest adjacent parcel covers 26.01 acres and the portion of the property adjacent to the host parcel is undeveloped while the Lasco facility is situated north of the north corner of the host parcel. The portion of the parcel occupied by Penske appears to be situated approximately 700 feet northeast of the north corner of the host parcel. Possible hazardous substance releases associated with the northwest-adjacent parcel may be expected to migrate to the west or to the west-northwest, which is away from the host parcel thus hazardous waste generation activities on the property are unlikely to affect the proposed lease area. RCRA TSD Facilities Report A query of Ecology's F/SID System and a review of the EPA Region 10 TSD facilities report did not reveal RCRA TSD facilities located within approximately one-half-mile of the host parcel. T-Mobile November 13,2008 Adapt Engineering, Inc. RCRA CORRACTS A review of the EPA Region 10 Washington Corrective Action Detail Report did not reveal RCRA CORRACTS facilities located within approximately one mile of the host parcel. 8.3 Emergency Response Notification System Spill Report The Emergency Response Notification System (ERNS) Spill Report is a national database used to collect information on reported accidental releases of oil and hazardous substances. The database contains information from spill reports made to federal authorities including the EPA, the United States Coast Guard, the National Response Center, and the United States Department of Transportation. A query of spill reports on the National Response Center's website did not reveal a spill incident report for the host parcel. 8.4 State Hazardous Substance Sites Ecology's Toxics Cleanup Program (TCP) maintains the Confirmed and Suspected Contaminated Sites (CSCS) report, an inventory of suspected or confirmed hazardous substance sites in the state of Washington. The CSCS report may be considered the equivalent to both the federal NPL and CERCLIS thus the search distance is one mile. The CSCS report is available via the TCP's online Integrated Site Information System (ISIS) web reporting portal, which allows location queries of the CSCS report by region, county, city, zip code, and address. A query of the ISIS web reporting portal did not reveal CSCS facilities located within approximately one mile of the host parcel. 8.5 State No Further Action (NFA) Hazardous Substance Sites Ecology's TCP maintains the CSCS No Further Action (NFA) report, which contains information on sites that have been investigated and cleaned up and which previously appeared on the CSCS report. The CSCS NFA report may be considered the equivalent to the federal de-listed NPL and NFRAP thus the search distance is one-half-mile. The CSCS NFA report is available via the TCP's online ISIS web reporting portal, which allows location queries of the CSCS NFA report by region, county, city, and zip code. A query of the ISIS web reporting portal revealed two CSCS NFA facilities located within approximately one-half-mile of the host parcel. One facility is listed as WOOD FABRICATORS at 1001 NE RHOTON RD located approximately three-eighths-mile north-northwest of the host parcel. The second facility is listed as LIVINGSTON BOATS INC YELM at 406 RAILROAD ST located approximately three-eighths-mile west southwest of the proposed lease area portion of the host parcel. Both facilities are reported to have completed a voluntary cleanup and considering their NFA status, it is unlikely the known contamination associated with the facilities would migrate to the host parcel. Additionally, the facilities are situated in positions that are hydrologically non-tributary to the host parcel, based on the topography, and are at such distances from the host parcel that it is unlikely the known contamination would affect the host parcel. 8.6 Institutional and Engineering Control Sites The CSCS and the CSCS NFA reports include information on sites with restrictive covenants and institutional controls. A review of the reports did not reveal a facility with institutional controls on the host parcel. T-Mobile November 13,2008 Adapt Engineerinq, Inc. 8.7 Brownfields Ecology's TCP maintains an inventory of Brownfields in Washington. The Brownfields Inventory is available via the TCP's online ISIS web reporting portal, which allows location queries of the inventory by region and county. A query of the Brownfields Inventory via the ISIS web reporting portal revealed four Brownfields within Thurston County; however, none of the Brownfields are within one-half-mile of the host parcel. 8.8 Underground Storage Tanks Ecology's TCP administers USTs that have been registered with the state of Washington, in accordance with the Washington UST Regulations (Chapter 173-360 Washington Administrative Code). Ecology's database of registered UST facilities is available via the TCP's online ISIS web reporting portal, which allows location queries of UST facilities by region, county, city, and zip code. A query of the ISIS web reporting portal did not reveal a UST facility on the host parcel; however, a UST facility is listed as occupying an adjoining parcel. The facility is listed as HYTEC, INC. at 801 NORTHERN PACIFIC which corresponds to the northwest-adjacent parcel. Tax assessment records indicate Hytec, Inc. is the property owner. The facility is listed as having one 12,000-gallon diesel UST that has been removed and an operational, 12,000- gallon diesel UST that was installed in 1998. The facility does not appear on the state listing of leaking USTs. The field reconnaissance revealed the UST is located approximately 700 feet northeast of the north corner of the host parcel and approximately 1,000 feet north-northeast of the proposed lease area. The UST is situated in a position that appears to be hydrologically non-tributary to the host parcel, based on the topography, and it is at such a distance from the host parcel that it is unlikely the known contamination would affect the host parcel. 8.9 Leaking Underground Storage Tanks Ecology's TCP administers reported releases from UST facilities or leaking UST (LUST) facilities. Ecology's database of reported LUST facilities is available via the TCP's online ISIS web reporting portal, which allows location queries of UST facilities by region, county, city, street address, and zip code. A query of the ISIS web reporting portal did not reveal LUST facilities within approximately one-half-mile of the host parcel. 8.10 Voluntary Cleanup Sites Ecology's F/SID System includes a database of sites in the Voluntary Cleanup Program (VCP), Ecology's former Independent Remedial Action Program (IRAP), and independent cleanup sites. A query of the F/SID System revealed two VCP sites and no IRAP sites or independent cleanup sites within approximately one-half-mile of the host parcel. The VCP sites are listed as Wood Fabricators at 1001 NE RHOTON RD and Livingston Boats Inc Yelm at 406 RAILROAD ST and both sites are discussed in Section 8.5. 8.11 Landfills Ecology's Solid Waste in Washington — 15th Annual Status Report does not include a landfill within one-half-mile of the host parcel. T-Mobile November 13,2008 Adapt Engineerinq, Inc. 8.12 Tribal Records The host parcel is not within the reservation boundaries of a federally recognized Indian tribe according to Ecology's "Tribal Land and Reservations" map. The map indicates the nearest Indian tribe reservation to the host parcel is the Nisqually Indian Reservation located within four to five miles to the northwest of the host parcel. 8.13 Additional Environmental Record Sources No additional environmental record sources were reviewed. 9.0 INTERVIEWS Adapt was not provided with contact information for Railway Road Projects, L.L.C. thus an interview with the property owner was not completed. If an interview is completed pertinent information will be included in an addendum letter. 10.0 FINDINGS, OPINION, CONCLUSIONS AND DATA GAPS The Phase I did not reveal evidence of current or historical recognized environmental conditions (as defined by ASTM Practice E1527-05) or de minimis conditions associated with the host parcel, proposed lease area, and immediate surrounding area, that in Adapt's professional opinion, have resulted in a release of hazardous substances or petroleum products to the proposed lease area portion of the host parcel. Therefore, it is Adapt's professional opinion that a Phase II Environmental Site Assessment for the proposed lease area is unwarranted at this time. We have performed a Phase I Environmental Site Assessment in conformance with the scope and limitations of ASTM Practice E 1527-05 of the host parcel and proposed lease area at 16220 Railway Road Southeast in Yelm, Washington, the property'. Any exceptions to, or deletions from, this practice are described in Section 2.0. This assessment has revealed no evidence of recognized environmental conditions in connection with the property. Adapt did not encounter significant data gaps affecting our ability to assess for the presence of recognized environmental conditions that may adversely environmentally affect the proposed lease area portion of the host parcel. 11.0 DEVIATIONS The report format of the Phase I does not stringently follow the recommended format included in ASTM Standard E 1527-05 but Adapt believes the information required of the standard is presented herein. 12.0 ADDITIONAL SERVICES No additional environmental record sources were reviewed. ' The property includes the proposed lease area portion of the host parcel as described in Section 3.5. T-Mobile November 13,2008 Adapt Engineering, Inc. 13.0 REFERENCES The following documents were used in the preparation of the Phase I. • Adapt Engineering, Inc. Geotechnical EnqineerinQ Evaluation - Updated, Wilkenson Road/Railway Tower Site (SE05198-D). 3 July 2008. • Adapt Engineering, Inc. Modified Phase I Environmental Site Assessment, T-Mobile Site #SE05198D Wilkenson Road/Railwav. 27 April 2007. • American Society for Testing and Materials. Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process (E 1527-05). Nov. 2005. • Thurston County. Office of the Assessor. Parcel Search. 13 November 2008. <httq://tcqroqerty.co.thurston.wa.us/propsql/front s.asp>. • Thurston County. GeoData Center. Main Map Site Viewer. 13 November 2008. <http://cteomap 1.geodata.orQ/website/cadastral/viewer.htm>. � United States. Department of Agriculture, Soil Conservation Service. Soil Survev of Thurston Countv Area, Washinqton. 1990. • United States. Environmental Protection Agency. Search Superfund Site Information. 11 November 2008. <http://cfpub.epa.qov/supercpad/cursites/srchsites.cfm>. • United States. Environmental Protection Agency — Region 10. Washington Corrective Action Detail Report. 21 August 2008. • United States. Environmental Protection Agency — Region 10. Washington List of Regulated Handlers, Sorted bv Location, Zip Code, Handler Name and Handler ID Number. 21 August 2008. • United States. Environmental Protection Agency — Region 10. Washinqton State List of Treatment, Storage and Disposal Facilities Sorted by Handler Name. 6 August 2008. • United States. Department of the Interior Geological Survey. Map. Centralia, WashinQton, 30-Minute Series (TopoQraphic). 1916. • United States. Interior Department Geological Survey. Map. McKenna, Washinqton, 7.5- Minute Series (Topoqraphic�. 1990. • United States. National Response Center. Query NRC Reports. 11 November 2008. <http://www.nrc.uscq.m il/pls/htmldb/f?p=109:1:2159181216924433>. • Washington State. Department of Ecology. Facilitv/Site Atlas. 11 November 2008. <http://apps.ecv.wa.qov/website/facsite/viewer.htm>. • Washington State. Department of Ecology. Facilitv/Site Database Search. 11 November 2008. <https://fortress.wa.qov/ecy/facilitvsitesearch/AdvancedSearch.asqx> T-Mobile November 13,2008 Adapt Engineering, Inc. � Washington State. Department of Ecology. Intearated Site Information Svstem. 11 November 2008. <https://fortress.wa.gov/ecv/tcpwebreportinq/reports.aspx>. • Washington State. Department of Ecology. "Location of Municipal Solid Waste Landfills and Energy Recovery Facilities (as of October 2006)". Solid Waste in Washinqton, 15th Annual Status Report. December 2006. • Washington State. Department of Ecology. Map. Tribal Lands and Reservations. 2 July 2007. • Washington State. Department of Ecology. Washinqton State Well Loq Viewer. 12 November 2008. <http://apps.ecy.wa.qov/welllog/>. • Washington State. Department of Natural Resources. Division of Geology and Earth Resources. Map. Ge_o_loqic Map of the Centralia Quadranqle, Washinqton (Oqen File Report 87-11). 1987. • City of Yelm, Community Development Department. T-Mobile Site Plan Review Application. 12 November 2008. <http://www.ci.velm.wa.us/default.asq?dept=cdd>. • City of Yelm. Comprehensive Water Plan. September 2002 • City of Yelm. Map. Zoninq Map. 21 April 2005 T-Mobile November 13,2008 Adapt Engineerin�, Inc. � --•- 14.0 SIGNA7URES OF ENVIRONMENTAL PROFESSIQNALS We declare that, to the best of our professional knowledge and belief, we meet the de#inition of Environmental Professional as defined in §312.10 40 CFR 312. We have the specific qualifications based on education, training, and experience to assess a property of the nature, history, and setting of the subject property. We have developed and performed the all appropriate inquiries in conformance with the standards and practices set forth in 40 CFR Part 312. Respectfully Submitted, Adapt Engineering, Inc. � Adam E. 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F �:' I 1 �� ((�. � n�i � .. 1 Dar S.`P arca, . a...� � � , , Senior Reviewer ; �`�'��.`� :: � `3 �`1�;,...' <�.� �uw....._...:�....,`.,;,.�,� �'C�a/��i J �i;C''-✓ ,.=- `Yl; , r' ��:�r�, �,�d . .��,; L�.. �4� wc��u,rr��.>r.N::.�i..+�.vu.�.� �"c�c��{�..�,3.`�i�:l't�G.a t{�s�... . �-_'Y.......�..�-.�..- T-Mobile November 13,2008 Adapt Project No.WA07-14680-PM1 Page 21 L - i � , ' � '� � _ , �,., �,�--`- � � t :�`�'� {y � �,._. � �. � � � �'�' � �b � � ' �" � � z a� � ,�,., ° ��' o .t $ ,.� �� m � ° � �cy c .f -- c �� e O � a yY ,� . rr,r -, i � G o y � r' �' O a�----'� � �� j�� Y.. �� a�w��`�, �a�■ --,_:E,��r c� '',- '_'c� o0 �-- - . o � � E ,�n '',4 �g. , o � �ri ; �" � `�-3. � �u■ ,-�l 9� T v � � �o ■ �� , �� e � 3 �- � � W - •—°-_•._, . �'� ��.-�'___-_ _.___.._- ~-• � ( V C � � .. - � 1 _�_-_ �^-_-�.1� y L7 � l0 m . r--� 4 p 4 • ��,_;s a � � � � r�� '� � ° � _ �-1 �� c � � �'� � � • � y f0 _-�• _ , � �4,1 • C - --____..__._._ C � _f' � �.�} k .��' Y � r 2 � j� I 4 I•�� '�^• � � � �� -3} '� � 3 ° r'`� , � � p � °� m o � _ _1�-- ■- = � ' � �3c� � c� �°n - '� W f � d Rs a a � o � � .. 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FIGURE 6 - 2006 Aerial Photograph - Host Parce 615-BthAvenueSouth project : SE05198DWilkensonRoad-Railway Seattle, Washington 98104 Location : 16220 Railway Road Southeast Yelm,WA 98597 . � , — Tel(206)654-7045 Client : T-Mobile L J QW � U Z � � Z � C� � � � O �� (� � F- C�'3 IQ— C wo� cn � / � z � a o �� W (A � T � / � � 3 � � � Q � C co y .. � � � W ao �(� f0 m � � / (} a� .. � ' LL � �° 'o � ' � � W � c � /� W / Z � c o /� �' � � c� O m Y � � a +� T� � / Q ' uJ � U � (}�} (n � ;rn a°o i w w/ JJZ W � � �Na � oC � �� Zg � C7W 1 °' �o� � � � � J � � I/ I fALQL (n du1 1` �° N y � Q Q = v �6 � °Q � � � � �} � � � JQtQi .� �� W � -- W .. .. .. o � m , %� � c z m R c m y�. i � •o v m•p^ p6`l,y � � a` � v a` d t� - , `�y/�d o °w � � S O o � � r � i J6. � O 0 p ,C � � I ��6��6.-! � W w w � � .� � � � � 'S�� v' p � Z •� � � � � � W b Z „ � y � � �2 � � �l Q � c`�o �o I � � � O � W �� N � W � � bm �" x 1� W a � Q � � I� lro 0 � J Z w � � W Lai � RAILWAY ROAD SOUTHEAST Z w J � (� Z � � � I I »� 0 W � I O � W W I I � Z W � W 0 � V � 0 Z 2 � E,y I � I Q �/ Q � � � z / � i . . � . . � . . � . MEADOW � \ PROPOSED � LEASE AREA � \ � REPORTED � SEPTIC TANK ` TREE LINE LOCATION � � REPORTED \ SEPTIC i i �� DRAINFIELD L � AREA MOBILE ` WELL HOME � HOUSE �/ \� � i i � �� .� \ _ ` ♦ � WOODS \ ♦ � BARN HOUSE \ RAILWAY ROAD SOUTH EAST NOT TO SCALE AdaptEngineering,��c. FIGURE 8 - Lease A�es Deteil Plan r 615-8th Avenue South Project : SE05198D Wilkenson Road-Railway Seattle, Washington 98f04 Location : 16220 Railway Road Southeast Yelm,WA 98597 , �° Tel(206)654-7045 Client : T-Mobile - - -� Fax(206)654-7048 Project No: WA07-14680-PH1 Date : 11/14/08 1 __ . Adapt Engineering, Inc. APPENDIX A PHOTOGRAPHS T-Mobile November 13,2008 Adapt Enqineerinq, Inc. , ,- , r,.� y,. , � ; � , . . � � ,. 1. Looking northerly at the proposed lease -�} � ° �� area. ' � � �` l `; �� "�•1 �i �� _�' " � • ",, , . .yr ♦"hv. ,� �P�.` �fi3/`��. �1• . ��A� .i r�� `��+ i , ��.e � v/ .. � ��e.� � '�.. r �. . �1'-° , . ,� # , � � ��`� �� . - . . ��.r �c � a��'` � . . � �` ' . - � . � ,. r r � r de, pw,. . . h a' Y� �,c 'i✓W � ,�p' �' , y r ,r • , � .a � '�$ .. . '' �r � - �..��.`, ��t, A ' � �,@��r�. � � `.� � ��`�`� . 'F' g �� a � e�,�'�"�a^�'�"i" ' Y��,"y: .r z �� }�* :.fr�" � �� C'� r'�� _ ,�R. t. �It - <'*��SK" �3 .t��g y -j G ' " #`rP..ID� . J y,AI'.� �" �`�(�) ��i ��t �rv,e . P.. � +�t�% 'Y "�i X /+ ` .y j y'`,yk`' �.'§� '4. ��+f � �".fi*a >*�'.r�7`}�,�:``�c;, , ��Y.� :v��":.,'.��!:17,�i w � "" 2. Looking southeast from the proposed � � _4.;%'% . ,..,� lease area towards the host parcel -'� � � � �'�'�� , �� -•�'�''� .y� �-� :,- �� , 1 . „ , 'r „- � �,'. structures. I ' ,, �t . -��:�.--{�: ; ' �� ` '. r �`r ,� � �+ r , �� - � � ` � '� , ..�,r'�� ,�.I ,,,� �T� ,� �.�+!,�w;i��.�':� "� �si T y -+''�'" ��`"'�"%ti x . ��' c%��„xa.�^'�"" '.. A,*;,�5 °��'.� , . .: . , , - x � . 4 F.+� ,t �",'"�'^. rs y • ',�:.�: s.Y � .t : � y�� I�1j-�- ' ' .j�, '" +nf ��4+ h I�[� '' . d�< �"A Y A t~ ; iYt�`:.+ i��r �� a,� �'j � . � ,�• ,+� d t � t,• SY' .��.. ,. . . ... �y��}��.,,, y� r��'�""� � ,� r . � �` a �a`,,sy�� »�. ks .J13 ".'��K�� . ��*'T4F'F.`9.h. 4�"1...� ♦i�+FS'k�vNl�� *d' � :w Y�'��!� �' y a� � � 'R:`�� K .r � . 34+ a�i�Ci�t� "� Yr �L�.,(�. \ . � 7�' *'', t'.S 4"0+ , ��a . , . .. ,, e.�� ..'.st� .xyi y ��y '}y�,. %+ .L...' .1, -.;�a T•�0.4' � � •. � � � ��, .' 3. Looking north from Railway Road Southeast at the proposed access drive �, �' �• ' � �: route. � � ,�,y��, -,. �:��'��;,�� '�' `� ti t�'!�`u �„'�'�. ..�i ^`. �r � � � I }. �� .,�dA, ��"#v��4�. � _� �F^'�" �1 t ,,� a y j �..� s ,y, � "� s �"'`� .a J� � %` `�' �`-=- 'i "�t�r .J +!t> 4 }"y i M,ft q� �.AIt1.7 • 1�,.;f ,�,,��,�, Y � ��t �('�, r � r,��A y�t+y �.:�� + �` �' � 4 �j�� f�� y j�/}��F �� S'^�`'u � }��i�yi,V} 'A pl�+�u..+d��'�^ .�t�j�`P��l�'ti��' 'L��«y�i ��l �oa�y$�If � #,. . , ..�`Y �, .� ��° . �� :t: �E ��7t�, �� N , � ) � � . . �f�,�/ '� ' �„�s;� f"��..� !X: . � �j� ;� ,� t_ j '� t . ._. . i ° . , ,� r : � � ,�� `�,, e, � , �� ` . �� : k -��'-` >'�' +a a. '� . _ '"`"�'" �� ` s,,"_,,;.� � � .�-'�Y+.��y, ss. � :: �-- " '�a�� . , . , .... „� ` �s:... . � . . . . .;...;a, �!,,, � �:; °=�i�'r i �:�w�'�°,<�•------�..,� �� y,•>..�.w,u�.. "w�d�, . . +�%��y...«.�.r�r'b^t.'� . , ---.ir..�e.,.=��.... ,., y � , _ .,. _ . '..,, , ,{ .-. . rv ..,.,�,.�r,a..y..- . . �-: .. .. . T-Mobile Photographs Adapt Enqineerinq, Inc. �- � �..., �a �..... � , _.�-.- ,,,� 4. Looking northwest from the proposed �` _ ` �r` t -- .-- , N -,:�_._.-' lease area. ��>>-' - � �� x,,, � ; _-..., �� - '� i-�'- �> - ," , '1��.� � .�� ' "1�- � � '1 -s v,+ �; � �t#7.�� 1 � � .� � � .. r .§� �` ' ' , . � �'p�„'� , - � ��,,, . .. . � . , x .. �.,q;`' :X': .:ah�. �1jjj��(yyypyp�.. ",�'� j.�`, R"�#�^ . � �'.. � . . 1.�r. . . r ..�i ..� 4 n Nn_'x . ,4. b� .�1+'W' . ";;._M., � . � . � s+ - ., �;,' '_ ,' . . . xiiwl�`:.zYa .�.,..-..c� ��' . ... . .. ,. . .... . . ..... . .,.. .�.. ., 5. Looking west from the proposed lease � �� area. `•. ,�� ;:. ,'` . . '�r�:, - � ~.,� , ,:�.., �.' � �.� .�.J .- 4 � �, �, �._ . . ,� 3 - ��h}. •%��. ,.5,1. '�� l, �`�Y t '�� 1 � .:1 ��aP;' 4E� �.��. � �� r �' `! ty � � � 9..v�' '� .,e«e,,., +� 7� e *rwfla�$t ''�°• .� �r `��°k�� a T-Mobile Photographs . - _ _ _ _ Adapt Engineering, Inc. APPENDIX B ASTM E1527-05 USER QUESTIONNAIRE T-Mobile November 13,2008 Project-Property Name: SE05198D Wilkenson Road-Railway Property Address: 16220 Railway Road Southeast, Yelm,Washington 98597 In order to qualify for one of the Landowner Liability Protections(LLPs)offered by the Small Business Liability Relief and Brownfields Revitalization Act of 2001,the user must provide the following information(if available)to the environmental professional. Failure to provide this information could result in a determination that"all appropriate inquiry'is not complete. Use Page 2 to Explain"Yes"Responses or a"No"response to Question 4. 1. Environmental cleanup liens that are filed or recorded against the site(40 CFR 312.25). Are you aware of any environmental cleanup liens against the property that are filed or recorded under federal,tribal,state or local law? No ❑ Yes ❑ 2. Activity and land use limitations that are in place on the site or that have been filed or recorded in a registry (40 CFR 312.26). Are you aware of any Activity and Use Limitations (AULs), such as engineering controls, land use restrictions or institutional controls that are in place at the site and/or have been filed or recorded in a registry under federal,tribal,state or local la�nl.� No ❑ Yes ❑ 3. Specialized knowledge or experience of the person seeking to qualify for the LLP(40 CFR 312.28). As the user of this Environmental Site Assessment(ESA)do you have any specialized knowledge or experience related to the property or nearby properties? For example,are you involved in the same line of business as the current or former occupants of the property or the adjoining property so that you would have specialized knowledge of the chemicals and processes used by this type of business? No ❑ Yes ❑ 4. Relationship of the purchase price to the fair market value of the property if it were not contaminated (40 CFR 312.29). Does the purchase price being paid for this property reasonably reflect the fair market value of the property? If you conclude that there is a difference,have you considered whether the lower purchase price is because contamination is known or believed to be present at the property? No ❑ Yes ❑ N/A ❑ 5. Commonly known or reasonably ascertainable information about the property(40 CFR 312.30). Are you aware of commonly known or reasonably ascertainable information about the property that would help the environmental professional to identify conditions indicative of releases or threatened releases? For example,as user, a. Do you know of past uses of the property? b. Do you know of specific chemicals that are present or once were present at the property? c. Do you know of spills or other chemical releases that have taken place at the property? d. Do you know of any environmental cleanups that have taken place at the property? No ❑ Yes ❑ 6. The degree of obviousness of the presence or likely presence of contamination at the property, and the ability to detect the contamination by appropriate investigation (40 CFR 312.31). As the user of the ESA, based on your knowledge and experience related to the property are there any obvious indicators that point to the presence or likely presence of contamination at the property? No ❑ Yes ❑ User Name: (May be a company or individual) Name and Title of Person Completing the Form: Date: Please explain below any"Yes"responses to the questions on Page 1.