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96-101191
CITY OF • (206)661-4000 33530 1ST WAY SOUTH FEDERAL WAY,WA 98003-6210 August 29, 1996 Mr. Andrew Smith FILE Delta Environmental Consultants, Inc. 1756 114th Avenue SE, Suite 110 Bellevue, Washington 98004 RE: LAND USE PROCESS I&LAND SURFACE MODIFICATION APPROVAL - EXXON REMEDIATION PROJECT FW File Nos. LSM96-0002, SEP96-0013, UPR96-0015 • Dear Mr. Smith: The City of Federal Way hereby approves your Process I Land Surface Modification application In summary, the proposal is to excavate petroleum contaminated soil from a former Exxon service station located at 2510 South 320th Street. Based on a set of project findings (attached) related to this project, the city approves your application with no conditions. Please note, this approval does not grant license to start site work. Site work may only begin after issuance of the building permit. Request for Reconsideration/Appeal Typically for Process I decisions a request for reconsideration or an appeal may be filed by the applicant or any person who submitted written comments or information to the Director of Community Development Services. The request for reconsideration must be filed within seven calendar days of issuance of this decision pursuant to the procedural requirements of Federal Way City Code (FWCC) section 22-396. Additionally, an appeal may be filed within fourteen days pursuant to FWCC section 22-397. However, in this case because no written comments were received during the Process I notification period, the only party with standing to file a request for reconsideration or an appeal is the applicant. Under this circumstance, a letter dated August 29, 1996 was submitted to the Department of Community Development Services waiving the applicant's right for reconsideration and/or appeal. Therefore, the Director's decision is valid upon signature. Approval Period This approval is valid for a period of one year from the date of final decision on this proposal. Complete construction permits must be filed or construction started within one year of the final decision on this proposal, or the decision become void. Furthermore, substantial completion of all construction and completion of applicable conditions must occur within five years of the final decision Mr. Smith Page 2 on the proposal, or the decision becomes void. A one time extension of up to six months may be granted only if a written request is submitted to the Department of Community Development pursuant to FWCC section 22-409. This decision shall not waive compliance with future city code, policies or standards relating to development. Environmental Review A determination of nonsignificance for this project was issued on June 22, 1996. There were no conditions and no comments or appeals filed by July 15, 1996. If you have any questions regarding this decision, please contact Michael Thomas, Senior Planner at 661-4104. The associated building permit for this project is has been reviewed and is ready for pick- up at your convenience. Sinc r ly, Gregory . re, AICP Director of Community Development Services c: Michael Thomas, Senior Planner File Attachments: 1. Process I and Site Plan Review findings 2. SEPA DNS 3. Letter from Delta Environmental dated July 29, 1996 CITY OF • lialplarTtFr (206)661-4000 N)� ' 33530 1ST WAY SOUTH FEDERAL WAY,WA 98003-6210 FILE MEMO To: Ron Bruce, Delta Environmental Consultants, Inc. ivie From: Michael Thomas, Sr. Planner, City of Federal Way Subject: Temporary Erosion Control Standards Date: June 11, 1996 In response to our latest phone conversation, please find attached, Chapter 5, Temporary Erosion and Sedimentation Control Standards taken from the King County Surface Water Design Manual. In it you will find the standards and practices which you will need to apply to the Federal Way Exxon site during construction. Questions regarding the attached should be directed to Julie Venn, Engineer Plans Reviewer II, at 661-4125. Also, hydroseeding of any areas left exposed(bare dirt) from site work will be required. This is to prevent the potential for erosion in the interim between this project and future site development. If you have any questions, please feel free to contact me at 661-4104. FILE May 28, 1996 Mr. Andrew Smith Delta Environmental Consultants,Inc. 1756 114th Avenue S.E., Suite 110 Bellevue,Washington 98004 Subject: Letter of Complete Application Proposed Soil Excavation-Former Exxon Site FW File Nos. LSM96-0002/SEP96-0013 Dear Mr. Smith: The Department of Community Development received your application on May 1, 1996 to perform soil excavation work at a former Exxon Station located at 2510 S. 320th Street in Federal Way. At the City's Development Review Committee May 23, 1996 meeting the application was reviewed by staff for completeness with the submittal requirements for Land Surface Modification permits. The Committee determined that the application substantially meets the submittal requirements and can therefore be considered a complete application as of May 28, 1996. Through the course of review of your development application,the need for additional information may arise. This will be true if changes are made which alter the scope of the project. If additional information is needed, the Department of Community Development Services will notify you in writing identifying those items which need to be submitted in order to continue processing. The Department has a responsibility to notify other agencies who may have jurisdiction over your development project or an interest in it. To this end,the city submitted a copy of your application to Lakehaven Utility District and Fire District No.39 for review. Lakehaven Utility District provided the following comment regarding sewer: Any water to be discharged from groundwater remediation facilities to the sanitary sewer will require a side sewer permit. The owner will be required to complete a Sewer User Survey (SUS); with pretreatment requirements to be determined upon review of said SUS. Please note that the permitting requirements,fees and processing time for the agency listed above is different than those of the City. Fire District No. 39 had no comments. Other comments from the various city departments are provide below: Public Work: a)Any work conducted within the public right-of-way will require a right-of-way permit. Mary McCaughan should be contacted at 661-4127 for information regarding this permit. Mr. Andrew Smith Exxon Remediation Project Page 2 b) A temporary erosion control plan needs to be submitted. The plan should contain information regarding construction entrance pads,siltation fencing,revegetation plans,and the location of excavation piles,etc. c) Access onto S. 320th Street is prohibited -- access should be obtained from the internal roadway in Gateway Center(Gateway Boulevard). Planning: It is unclear from the work plan what is to be left as a site surface after completion of the remediation work. Any exposed soil will need to be hydroseeded to prevent storm water runoff problems. Building Dept.:No comments The next step in processing your application will be to begin work on preparing the necessary environmental and land surface modification documents for approval by the Director of Community Development Services. If you should have any comments regarding this letter,please feel free to contact my office at 206/661-4104. Sincerely, Michael Thomas, Senior Planner Dept. of Community Development Services c: file AFFIDAVIT OF PUBLICATION No. F09 triTICI OF LAND .R AT 'UCATION YV�12, .996 On May 1, 1996, Delta Environmental STATE OF WASHINGTON ) Consultants, Inc. filed a land use ap- COUNTY OF KING )ss. plication with the City of Federal Way to perform site remediation at a former Exxon service station site located at I, Marjorie Wooster, being first duly sworn on oath 2510 S. 320th Street. The purpose of deposes and says: That she is the Director of the site remediation work is to remove Administration/Human Resources for The Federal Way petroleum contaminated soil from the site. After removal of contaminated News, a bi-weekly newspaper which is now and at all soil, clean fill dirt will be imported and times herein mentioned has been published and printed in the site graded flat. The following City an office maintained at the place of publication at Federal of Federal Way permit numbers are Way, King County, Washington, that by order of the assigned to this land use application: Superior Court of the State of Washington in and for King 1.Use Process I-UPR96-0015 County, said newspaper is now and at all times mentioned 2. S dteat Environmental Policy Act NIclrMi-IMEP3841113 herein has been approved as a legal newspaper for the 3. Land Surface Modification publication of any advertisement, notice, summons, LSMN-OOp report, proceedings, or other official document required A Notice of Complete Application was by law to be published, that said newspaper was published issued to the applicant on May 28, regularly at least once each week, in the English 1996. The notice Informed the appli- language, as a newspaper of general circulation in cant that the land use application filed meets the City's submittal require- Federal Way, King County, Washington, at the time of menu for each of the types of permits application to the aforementioned Superior Court for listed above. approval as a legal newspaper, and was so published for In reaching a decision on this land use at least six months prior to the date of said publication, proposal, the City will consider the fol-. and is now and at all times mentioned herein has been so lowing technical information submitted by the applicant: published. 1. Subsurface Investigation Re- That the annexed is a true copy of a Notice by port- Former Exxon R/S NO. 7- the City of Federal Way of a Land Use Application by 2518, prepared by Delta Envi- Delta Environmental Consultant's, Inc.; UPR96-0015 ronmental Consultants,Inc. 2. Level II Environmental Site Assessment & Remediation as it was published in regular issues of said newspapers Evaluation, prepared by RZA- AGRA consultants once each week for a 3.Site Plan period of one consecutive week(s), commencing 4. State Environmental Policy Act checklist. This project will be reviewed under the on the 12th day of June , 1996, and ending provisions of land use process I. Under process I, the Director of Conl- on the 12th day of June , 1996,both dates munity Development Services makes the decision based on a review of the process I decisional criteria (Federal inclusive, and that said newspaper was regularly Way City Code section 22-394),official distributed to its subscribers and as a newspaper of file and any written public comments. general circulation during all of said period. Any persons interested in this applica- tion may review the file and/or submit t the full amount of the fee charged for the written comments to the Director of forego' ublication is the sum of$ 59.50 Community Development by June 26, 1996. Only those persons who submit written comments may appeal the di- rectors decision. The official file is available for public bscribed and sworn to before me this 19th day review at the Federal Way City Hall, of June , 1996. 33530 1st Way South, Federal Way, Washington 98003. Any questions re- , garding this proposal should be di- ^p,-, / OdU " Planed to Michael Thomas, Senior Pl(�(( 1-4104. Pub I shed in thener at 6 Federal Way News Notary Public in and for the State W. ugton on June 12,1996. F09 Residing at Seattle. My commission expires 5/30/99. CITY OF G • 6.10 (206)661-4000 33530 1ST WAY SOUTH FEDERAL WAY,WA 98003-6210 STATE ENVIRONMENTAL POLICY ACT DETERMINATION OF NON-SIGNIFICANCE Application No. SEP96-0013 Exxon Site Remediation Project Proposal: Delta Environmental Consultants, Inc., filed a land use application with the City of Federal Way to perform site remediation at a former Exxon service station. The purpose of the site work is to remove petroleum contaminated soil from the site. Applicant: Delta Environmental Consultants, Inc., 1756 114th Ave SE, Suite 101, Bellevue, Washington 98004. Contact: Andrew Smith, Delta Environmental Consultants, Inc. Type of Action: Land Surface Modification permit and Use Process I. Lead Agency: City of Federal Way City Contact: Michael Thomas, Senior Planner, City of Federal Way Land Use Division, 33530 1st Way South, Federal Way, WA 98003, Phone: 206-661-4104 The City of Federal Way, as lead agency for this proposal, determined the proposed action does not have probable significant adverse impact on the environment, and a Environmental Impact Statement (EIS) is not required under R.C.W. 43.21C.032 (2)(c). This decision was made following review of the submitted environmental checklist, related drawings and "Final Staff Evaluation for Environmental Checklist, Application No. SEP96-0013," and the Federal Way Comprehensive Plan and other municipal policies, plans, rules and regulations designated as a basis for exercise of substantive authority under the Washington State Environmental Policy Act Rules pursuant to R.C.W. 43.21C. and other information on file with the lead agency. This information is available to the public on request. The determination of nonsignificance is issued under Washington Administrative Code 197-11- 340. Pursuant to RCW 43.21C the City, as lead agency, will not act on this proposal for 21 calendar days from date of determination issuance. Any appeal of this decision must be done within the allotted 21 day comment/appeal period. Comments or appeals must be submitted no later than 5 p.m. July 15, 1996. Unless modified by the City, this determination will become final following expiration of the comment/appeal deadline. Questions regarding this environmental determination should be directed to Michael Thomas, Senior Planner, at 206/661- 4104. Responsible Official: Gregory D. Moore, AICP Position/Title: Community Development Services Director Address: 33530 First Way South, Federal Way, WA 98003 Signature. 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'\ k; '?;\. ;;;,--7,,/,,,r, , 4.,) •-- ‘.../ -, -,-......-- ,,), .71- ii, r, • • 1,\, • \\ 0,, _.., -----, .._. , ' ,,,:-•A ..,-- — ‘,_..... , „/ 1 V>, t , -',' 0 1 / ....,,.. ,. 1 'a } \ It• .7. , .: ..•• • /11 'i 1, '•'---;14- 41- ___)/ ,......7 'v.e...l• ::::7::.\------'' T.1;42- 2: '.. /\ \ i‘ ' • ?..: . "Ci. ,, .. ---7: - 1' / •,.:1. '. ' 1-"N ,...,!--- U ' , '1; .„`,. -.'i •'''• '- 4/.• i ' ----• - ./-1.{L, i I:1 I ,,-•,''Y v!r eeri,,,,----,, . . • 1 •S).) ...:%?A4 ., •:;-/\ ; .-..-.• •• r - •-.4. 7.71 P i I/ , ..•. . ,t '7,4' ..1; —: r I . ' '. • .- - r: I . L_J--\_ 2\'\---','' /1 392 i 4..!-7.• c . Ne\, 1\ t,. „ . ) GENERAL NOTES: North R.4 E. BASE MAP FROM U.S.G.S. POVERTY BAY, WA. FIGURE 1 7.5 MINUTE TOPOGRAPHIC SITE LOCATION MAP PHOTOREVISED 1981 FORMER EXXON R/S NO. 7-2518 2510 SOUTH 320th STREET FEDERAL WAY, WA. 0 2000 FT PROJECT NO. DRAWN BY 1 LI09 PR 4-845 LH. 3/28/96 FILE NO. IEPARED BY Delta R.B. SCALE 1 : 24.000 REVISION NO. -REVIEWED By A Environmental Consultants, Inc. 1 . 177 FORLL'3t USED 0L OPEN SPACE LJ TALC LOCATIONS North , 2. i 1 f TAW 1 HOLDINC M LJ LJ '-3 N 59-10• r • FAWN; FO•.NDC1ON i; 53-17 Sa_11, •- TOM ' 2 nn • M • B;ILD:NC v w U-U LOCAT10N 1101-6 FORU I 0 Hoss N j] p L__ U U R▪ �en1oU I et o c• 01 ( t�, IY , be s:' FOP g -1 3 /�\ TANK I la. ..� _ I • w CQ�Ja e .,/ ?��o^A,�.�• JP:.) ' 1SLTND • s3- ` / _1 r^\ 3-8• • :6 ` Jr/ / 3-14 \ // / Z I • / V I \ / no,7 PUN? S.AND • 53-9 LI : >sAND W -4 I 0 • kr{-5 0 e Ci I I PLANTER LR'.'Eh1.Y PLANTER. l=cp:': SOUTH 320th STREET PROPLiY UNE 0 30 FT • S3-7 SOIL BORING LOCATION 0 uw-1 MONITORING WELL LOCATION =i!! 1 . . SCALE FIGURE 2 SITE 11,,AP • FORMER E<XON R/S NO. 7-2518 • 2510 SOUTH 320th STREET • • FEDERAL WAY, YEA_ PROJECT NO. DPAWN EY U094-545 !x 3/28/96• Ft.£ NO. -?RE"rA4 D EY • Delta u044N P.S. ��� RP- NOTE: MONITORING WELLS U.W-1, I✓.14'-2 d.'�O Wit-3 WERE ?=' SaY. ON NO. r.F✓E►!TL) EY FnYEronm.nlal C.'STALLED EY RZA Alto. MAT 1991. 2 Contu1tants, Ine. CITY OF FEDERAL WAY FINAL STAFF EVALUATION FOR ENVIRONMENTAL CHECKLIST FILE NO.SEP96-0013 June 11, 1996 PROJECT NAME: Exxon Site Remediation Project APPLICANT: Delta Environmental Consultants,Inc. CONTACT PERSON: Andrew Smith, 1756 114th Ave. SE, Suite 110,Bellevue,WA. 98004 LOCATION: Property is located at 2510 S. 320th Street. TYPE OF ACTION: Use Process I,Land Surface Modification,and SEPA approval. PROPOSAL: The applicant is securing the necessary permits to perform site remediation on a former Exxon Service Station site. A. BACKGROUND: 10. The applicant will need to obtain from the City of Federal Way the following land use permits: Land Surface Modification,Use Process I,and a SEPA environmental determination. 12. See attached site plan. B. ENVIRONMENTAL ELEMENTS: 1. EARTH 1.h. A temporary erosion control plan is required to be approved and implemented in accordance with City engineering standards. 2. AIR 2.b.1 Ground water pumped from the site will be either disposed of at an appropriate off-site location or discharged to the sanitary sewer. The Lakehaven Utility District is the agency who has responsibility over reviewing and conditioning what is discharged to the sanitary sewer. 3. WATER Concur with checklist. 4. PLANTS. Concur with checklist. 5. ANIMALS. Concur with checklist. 6. ENERGY AND NATURAL RESOURCES. Concur with checklist. 7. ENVIRONMENTAL HEALTH. Concur with checklist. 8, LAND AND SHORELINE USE. There are no uses associated with the site. The subject property has a zoning designation and a comprehensive plan land use designation of City Center. 9. HOUSING Concur with checklist. 10. AESTHETICS Concur with checklist. 11. LIGHT AND GLARE Concur with checklist. 12. RECREATION Concur with checklist. 13. HISTORIC AND CULTURAL PRESERVATION Concur with checklist. 14. TRANSPORTATION Concur with checklist. 15. PUBLIC SERVICES Concur with checklist 16. UTILITIES Concur with checklist. C. CONCLUSION The proposal can be found to not have a probable significant adverse impact on the environment. This decision is based upon the submitted environmental checklist,attachments,and the above `Final Staff Evaluation for Environmental Checklist Application No. SEP96-0013',and are supported by plans,policies and regulations formally adopted by the City for the exercise of substantive authority under SEPA to approve,condition or deny proposed actions. The City reserves the right to review any future revisions or alterations to the site or to the proposal in order to determine the environmental significance or non-significance of the project at that point in time. Prepared by: Michael Thomas. Senior Planner Department of Community Development Services Date: June 11, 1996 I:\DVPROJCT\EXXON\SEPAEVAL.WPD OTT Of �' 33530 First Way South a-cac- ® Federal Way WA 98003 �V Phone (206) 661-4000 • ENVIRONMENTAL CHECKLIST Purpo f Check ist: The State Environmental Policy Act (SEPA), Chapter 43.21C RCW, requires all governmental agencies to consider the environmental impacts of a proposal before making decisions. An environmental impact statement (EIS) must be prepared for all proposals with probable significant adverse impacts on the quality of the environment. The purpose of this checklist is to provide information to help you and the agency`identify impacts from your proposal (and to reduce or avoid impacts from the proposal, if it can be done) and to help the agency decide whether an EIS is required. Instructions for Applicants: This environmental checklist asks you to describe some basic information about our proposal. Governmental agencies use this checklist to determine whether the environmental impacts of your proposal are significant, requiring preparation of an EIS. Answer the questions briefly, with the most precise information known, or give the best description you can.. You must answer each question accurately and carefully, to the best of your knowledge. In most cases, you should be able to answer the questions from your own observations or project plans without the need to hire experts. If you really do not know the answer, or if a question does not apply to your proposal, write "do not know" or "does not apply." complete answers to the questions now may avoid unnecessary delays later. • Some questions ask about governmental regulations, such as zoning, shoreline, and landmark designations. Answer these questions if you can. If you have problems, the governmental agencies can assist you. The checklist questions apply to all parts of your proposal, even if you plan to do them over a period of time or on different parcels of land. Attach any additional information that will help describe your proposal or its environmental effects. The agency to which you submit this checklist may ask you to explain your answers or provide additional information reasonably related to determining if there may be significant adverse impact. Use of Checklist for Non-project Proposals: Complete this checklist for non-project proposals, even though questions may be answered "does not apply." In addition, complete the Supplemental Sheet for Non-project Actions (part D). For non-project actions, the references in the checklist to the words "project," "applicant," and "property or site" should be read as "proposal," "proposer," and "affected geographic area," respectively. f ` 2 TO BE COMPLETED BY APPLICANT EVALUATION FOR AGENCY USE ONLY A. BACKGROUND 1. Name of proposed project, if applicable: Former Exxon R/S No. 7-2518 2. Name of applicant: Exxon Company U.S.A. 3. Address and phone number of applicant and contact person: Delta Environmental Consultants, Inc. 1756 - 114th Ave. S .E. Ste. 110 Bellevue, WA 98004 Attn: Bill Cannon 206-450-7726 4. Date checklist prepared: 4/23/96 5. Agency requesting checklist: City of Federal Way 6. Proposed timing or schedule (including phasing, if applicable): As soon as permit review is complete. 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. No 8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. Subsurface Investigation Report, Delta Environmental Consultants Level II Environmental Site Assessment & Remediation _ - Evaluation, -RZA-AGRA . 4 3 9. Do you know whether applications are pending for governmental approvals of other proposals directly affecting the property covered by your proposal? If yes, explain. No 10. List any government approvals or permits that will be needed for your proposal, if known. LSD Vi t2 tnknown 11. Give brief, complete description of your proposal, including the proposed uses and the size of the project and site. There are several questions later in this checklist that ask you to describe certain aspects of your proposal. You do not need to repeat those answers on this page. We propose to excavate petroleum contaminated soils from two small areas on the site. The petroleum contaminated soils will be removed from the site and backfill will be imported to replace the displaced soil. The excavations will be backfilled to surface grade. 12. Location of the proposal. Give sufficient information for a person to understand the precise location of your proposed project, including a street address, if any, and section, township, and range, if known. If a proposal would occur over a range of area, provide the range or boundaries of the site(s). Provide a legal description, site plan, vicinity map, and topographic map, if reasonably available. While you should submit any plans required by the agency, you are not required to duplicate maps or detailed plans submitted with any permit applications related to this checklist. 2510 South 320th Street Federal Way, WA (see Site Map and Site Location Maps) • B. ENVIRONMENTAL ELEMENTS 1. EARTH a. General description of the site (circle one): Flat, rolling, hilly, steep slopes, mountainous, other. Flat b. What is the steepest slope on the site (approximate percent slope)? 0% c. What general types of soils are found on the site (for example, clay, sand, gravel, peat, mulch)? If you know the classification of agricultural soils, specify them and note any prime farmland. Silty Sand with Gravel (Glacial Till) d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. No e. Describe the purpose, type, and approximate quantities of any filling or grading proposed. Indicate source of fill. On-site soil and imported pit run fill will be used to fill in excavation. f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe. No, surfaces are generally covered with impermeable material (asphalt, concrete) . 5 g. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? No net change h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any. Excavated soil will be placed on and covered with plastic. 2. AIR a. What types of emissions to the air would result from the proposal (i.e., dust, automobile, odors, industrial wood smoke) during construction and when the project is completed? If any, generally describe and give approximate quantities if known. Some petroleum hydrocarbon vapors, normal equipment exhaust. b. Are there any off-site sources of emissions or odor that may affect your proposal? If so, generally describe. No c. Proposed measures to reduce or control emissions or other impacts to air, if any. None proposed. Regular monitoring of petroleum vapors. 6 3. WATER a. Surface. 1) Is there any surface water body on or in the immediate vicinity of the site (including year-round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it flows into. No 2) Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans. N/A • 3) Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill material. N/A 4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known. N/A 5) Does the proposal lie within a 100-year floodplain? If so, note location on the site plan. N/A 7 6) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge. No b. Ground. 1) Will ground water be withdrawn, or will water be discharged to groundwater? Give general description, purpose, and approximate quantities if known. Ground water will be pumped from the excavation into an above ground storage tank as needed. City of Federal Way Sewer will be contacted to set up a one-time temporary discharge into the sewer. 2) Describe waste material that will be discharged into the ground from septic tanks or other sources, if any (for example: Domestic sewage; industrial, containing the following chemicals...; agricultural; etc.). Describe the general size of the system, the number of such systems, the number of houses to be served (if applicable), or the number of animals or humans the system(s) are expected to serve. N/A c. Water Runoff (including storm water). 1) Describe the source of runoff(including storm water) and method of collection and disposal, if any (include quantities, if known). Where will this water flow? Will this water flow into other waters? If so, describe. Runoff will not change from its current design. 8 2) Could waste materials enter ground or surface waters? If so, generally describe. No d. Proposed measures to reduce or control surface, ground, and runoff water impacts, if any. The excavated soil will be placed on and covered with visqueen plastic. The site will be swept clean during and after all work is completed. 4. PLANTS a. Check or circle types of vegetation found on the site. • ® deciduous tree: alder, maple, aspen, other ❑ evergreen tree: fir, cedar, pine, other ❑ shrubs 0 grass 0 pasture 0 crop or grain ❑ wet soil plants: cattail, buttercup, bulrush, skunk cabbage, other ❑ water plant: water lily, eelgrass, milfoil, other ❑ other types of vegetation b. What kind and amount of vegetation will be removed or altered? None c. List threatened or endangered species known to be on or near the site. Unknown • d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any. Site will remain asphalt covered. 5. ANIMALS a. Circle any birds and animals which have been observed on or near the site or are known to be on or near the site. Unknown birds: hawk, heron, eagle, songbirds, other: mammals: deer, bear, elk, beaver, other: fish: bass, salmon, trout, herring, shellfish, other: b. List any threatened or endangered species known to be on or near the site. Unknown c. Is the site part of a migration route? If so, explain. Unknown d. Proposed measures to preserve or enhance wildlife, if any. None 10 6. ENERGY AND NATURAL RESOURCES a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet the completed project's energy needs? Describe whether it will be used for heating, manufacturing, etc. N/A b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. N/A c. What kinds of energy conservation features are included in the plans of this proposal? List other proposed measures to reduce or control energy impacts, if any. N/A 7. ENVIRONMENTAL HEALTH a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and explosion, spill, or hazardous waste, that could occur as a result of this proposal? If so, describe. Petroleum Hydrocarbon vapors will be monitored with an OVM. Work will be halted if vapors exceed • health and safety threshold limits. • 1) Describe special emergency services that might be required. Delta Will use a Health and Safety plan and all Delta staff will be first aid and CPR trained. 11 2) Proposed measures to reduce or control environmental health hazards, if any. A meter will be used to monitor petroleum vapors. b. Noise. 1) What types of noise exist in the area which may affect your project (for example: traffic, equipment operation, other)? None 2) What types and levels of noise would be created by or associated with the project on a short-term or long-term basis (for example: traffic, construction operation, other)? Indicate what hours noise would come from the site. Excavation equipment 7 am to 5 pm 3) Proposed measures to reduce or control noise impacts, if any. None 8. LAND AND SHORELINE USE a. What is the current use of the site and adjacent properties? Parking lot for the site and commercial for adjacent properties. 12 b. Has the site been used for agriculture? If so, describe. Unknown c. Describe any structures on the site. No structures on site • d. Will any structures be demolished? If so, what? No e. What is the current zoning classification of the site? Commercial f. What is the current comprehensive plan designation of the site? Commercial g. If applicable, what is the current shoreline master program designation of the site? N/A • 13 h. Has any part of the site been classified as an "environmentally sensitive" area? If so, specify. No i. Approximately how many people would reside or work in the completed project? 0 j. Approximately how many people would the completed project displace? 0 k. Proposed measures to avoid or reduce displacement impacts, if any. N/A 1. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any. N/A 9. HOUSING a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low-income housing. 0 14 b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low-income housing. 0 c. Proposed measures to reduce or control housing impacts, if any. N/A 10. AESTHETICS a. What is the tallest height of any proposed structure(s), not including antennas; what is the principal exterior building material(s) proposed? N/A b. What views in the immediate vicinity would be altered or obstructed? N/A c. Proposed measures to reduce or control aesthetic impacts, if any. N/A 15 11. LIGHT AND GLARE a. What type of light or glare will the proposal produce? What time of day would it mainly occur? N/A b. Could light or glare from the finished project be a safety hazard or interfere with views? N/A c. What existing off-site sources of light or glare may affect your proposal? N/A d. Proposed measures to reduce or control light and glare impacts, if any. N/A 12. RECREATION a. What designated and informal recreational opportunities are in the immediate vicinity? N/A 16 b. Would the proposed displace any existing recreational uses? If so, describe. N/A c. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any. • N/A 13. HISTORIC AND CULTURAL PRESERVATION a. Are there any places or objects listed on, or proposed for, nation, state, or local preservation registers known to be on or next to the site? If so, generally describe. N/A b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural importance known to be on or next to the site. N/A c. Proposed measures to reduce or control impacts, if any. N/A • 17 14. TRANSPORTATION a. Identify public streets and highways serving the site, and describe proposed access to the existing street system. Show on site plans, if any. See attached site plan b: Is the site currently served by public transit? If not, what is the approximate distance to the nearest transit stop? N/A c. How many parking spaces would the completed project have? How many would the project eliminate? N/A d. Will the proposal require any new roads or streets, or improvements to existing roads or streets, not including driveways? If so, generally describe (indicate whether public or private). N/A e. Will the project use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe. N/A 18 f. How many vehicular trips per day would be generated by the completed project? If known, indicate when peak volumes would occur. N/A g. Proposed measures to reduce or control transportation impacts, if any. N/A • 15. PUBLIC SERVICES a. Would the project result in an increased need for public services (for example: fire protection, police protection, health care, schools, other)? If so, generally describe. No b. Proposed measures to reduce or control direct impacts on public services, if any. N/A • 19 16. UTILITIES a. Circle utilities currently available at the site: ,electricity, natural gas, water, refuse service, telephone, sanitary sewer, septic system, other (please list). None b. Describe the utilities that are proposed for the project, the utility providing the service, and the general construction activities on the site or in the immediate vicinity which might be needed. N/A • C. SIGNATURE The above answers are true and complete to the best of my knowledge. I understand that the lead agency is relying on them to make its decision. Signature: (For Exxon) 4/2 5/9 6 Date Submitted: • , D. SUPPLEMENTAL SHEET FOR NON-PROJECT ACTIONS Because these questions are very general, it may be helpful to read them in conjunction with the' list of the elements of the environment. When answering these questions, be aware of the proposal, of the types of activities likely to result from the proposal, would affect the item at a greater intensity or at a faster rate than if the proposal were not implemented. Respond briefly and in general terms. 1. How would the proposal be likely to increase discharge to water; emissions to air; production, storage or release of toxic of hazardous substances; or production of noise? No Significant impact Proposed measures to avoid or reduce such increases are: N/A 2. How would the proposal be likely to affect plants, animals, fish, or marine life? No Significant impact Proposed measures to protect or conserve plants, animals, fish, or marine life are: N/A 3. How would the proposal be likely to deplete energy of natural resources? N/A Proposed measures to protect of conserve energy and natural resources are: N/A J 4. How would the proposal be likely to use or affect environmentally sensitive areas or areas designated (or eligible or under study) for governmental protection; such as parks, wilderness, wild and scenic rivers, threatened or endangered species habitat, historic or cultural sites, wetlands, floodplains, or prime farmlands? N/A Proposed measures to protect such resources or to avoid or reduce impacts are: N/A 5. How would the proposal be likely to affect land and shoreline use, including whether it would allow or encourage land or shoreline uses incompatible with existing plans. • N/A Proposed measures to avoid or reduce shoreline and land use impacts are: N/A 6. How would the proposal be likely to increase demands on transportation or public service and utilities? N/A Proposed measures to reduce of respond to such demands are: N/A 7. Identify, if possible, whether the proposal may conflict with local, state, or federal laws or requirements for the protection of the environment. No Known Conflicts I:lVIRON.CUI( Reviseo 5/18/95 CITY OF (206)661-4000 33530 1ST WAY SOUTH FEDERAL WAY,WA 98003-6210 STATE ENVIRONMENTAL POLICY ACT DETERMINATION OF NON-SIGNIFICANCE Application No. SEP96-0013 Exxon Site Remediation Project Proposal: Delta Environmental Consultants, Inc., filed a land use application with the City of Federal Way to perform site remediation at a former Exxon service station. The purpose of the site work is to remove petroleum contaminated soil from the site. Applicant: Delta Environmental Consultants, Inc., 1756 114th Ave SE, Suite 101, Bellevue, Washington 98004. Contact: Andrew Smith, Delta Environmental Consultants, Inc. Type of Action: Land Surface Modification permit and Use Process I. Lead Agency: City of Federal Way City Contact: Michael Thomas, Senior Planner, City of Federal Way Land Use Division, 33530 1st Way South, Federal Way, WA 98003, Phone: 206-661-4104 The City of Federal Way, as lead agency for this proposal, determined the proposed action does not have probable significant adverse impact on the environment, and a Environmental Impact Statement (EIS) is not required under R.C.W. 43.21C.032 (2)(c). This decision was made following review of the submitted environmental checklist, related drawings and "Final Staff Evaluation for Environmental Checklist, Application No. SEP96-0013," and the Federal Way Comprehensive Plan and other municipal policies, plans, rules and regulations designated as a basis for exercise of substantive authority under the Washington State Environmental Policy Act Rules pursuant to R.C.W. 43.21C. and other information on file with the lead agency. This information is available to the public on request. The determination of nonsignificance is issued under Washington Administrative Code 197-11- 340. Pursuant to RCW 43.21C the City, as lead agency, will not act on this proposal for 21 calendar days from date of determination issuance. Any appeal of this decision must be done within the allotted 21 day comment/appeal period. Comments or appeals must be submitted no later than 5 p.m. July 15, 1996. Unless modified by the City, this determination will become final following expiration of the comment/appeal deadline. Questions regarding this environmental determination should be directed to Michael Thomas, Senior Planner, at 206/661- 4104. Responsible Official: Gregory D. Moore, AICP Position/Title: Community Development Services Director Address: 33530 First Way South, Federal Way, WA 98003 Signature. Gr gory Mo e, AICP Comm n' y D lopment Services Director July 19, 1996 I:\DVPROJCT\EXXON\SEPDNS 411- `1 B r t N:,!>'1\ Jiill _ +1•-I•l• IL- r Lk i - 1111_ 'I-'S•_ '_•L: -.., ..r•.•....•..- 7 ' - S) ;i __ ) ,..2 ,; ,.:.F.,;,1''!,,a-.. /l!b.i*,:,i-:l1H.li1,;:*:--2_',•..%,''-*:___-•,_?__•_,.._,_.•.'r,\--s'-'-----i:-::...,..-..-7 C.-r7-A..:.t„:.•!/.PiI....1.-'A,:..,T,.- •:-,.,.3-.—...,.7•\.--,-.,.-•:,",\.'\_--_-I__:T- „:•7.-„--!.1::-_„,,4(.,. 9. --._--_-,:'Lc,: .. i,:,,: .,....... . , i .4" ))-----(:.--'f. I 7- , N . . -. ir//,' ', \ _ • 1 : -4 -' 'I. ,_. ____.--- c_____7;-,a ; ), . c.1.-c •-• , ,-•• .‘\\,,l ' i•[rj)1 11 u J ��: l -7,/. .,...... I•n V' t �-•:, _ ;i 2'. ,' \\ '. •,\, •I •'•• .( II I II 7 ''J 1:�� �Tl'.,•\. '� ! 1 �... `V .6. (�; 18T/I�• • •Sd lI 1� A}�' ...-------•-". ' --ci :1 :1 1 \-.............: ' `,\ .. ,_,-, ,r.,--.:• \ r 0 iN___, • i A ''(* \420.i...• " --- ---r---- .( ~ • 11 al I , a 1; �— _�( N�I : ,.•• ' s - ;fir l c . ,� / Steel Lake `! ? � . ;- jt Illi y •`1J l="ram• ■ .I a •\ •• ; " :�. �� ter ��- ( 1ti . ! i\ • ;I n c 1•' I' t�•\` \ ,I //��ts4+?. :� 8: 3�2Tri- '45o1 . ■•. 'sr•,• 1 •.70) (; q •1 ' (. .' '._6.-^` \/J� • . . • ,. fi , 1 •IT ' ,- I,•EL'• ill'iJcl r: ; `.... a F 'FED RAL—WAY , I. :.• ,___)7-1A ,,•`' •V--=-;%-•1• -<.-: -',1-'''' irror L •)t-"•'• -.. Z s' - � � _ -% _ 1 SteelLake, ' •• \ -' „1 >/ \\ i II Y >?' ;` - ( om. 1 !� .T \ ill' -/ i �' i` -; -..P.a./al r% ti f!i r o n — 1 // ;'i` Aer een, ;k'� . . -1 �t � c I' v�IJ' \\ •\�• '� 1\ . f� A is - _ ,Tlailer_ i : o .. J� -,.., 391 ;( 1 \ 1 � \ \, GENERAL NOTES: North R.4 E. BASE MAP FROM U.S.G.S. FIGURE 1 POVERTY BAY, WA. 7.5 MINUTE TOPOGRAPHIC SITE LOCATION MAP PHOTOREVISED 1981 FORMER EXXON R/S NO. 7-2518 2510 SOUTH 320th STREET 0 2000 Fr FEDERAL WAY, WA. PROJECT NO. DRAWN BY A1094-845 I.H. 3/26/98 FlLE NO. PREPARE BY Delta SCALE 1 : 24.000 -- R B REVISION NO. REVIEWED BY ,. Consultants, allt� lno. 1 I *r ' — - - - - , ^f � ED FDt US 04. OP SPACE North WO( LOCIMONS I 2000 CAL f HOLDING TANK 11 �,AM'13 TA LJ LJ ' I w S5-10• I I I r--- DUILD04 i7,P0A1I0N " • c •a01 V. M • RR 9',UILD:NC 0 W LIT Loa110N Writ-6 FORM ETR e HOSTS ,y Q L U U L—. '2rxoU C 1 AC .S o FD- Concrr� ,,�,:Y I be_ S:7 CCIONS r-13 SANK I 46. • EPi. ) 1su,ND • S__;s -1jvniAt. (e / \ 3-5• I \ 0t i 1. I 3�14 \ / // V I N<\ / I no i ai V1�'-Z V I r_1•�PUM? S 411-4NO 53-9 Ilik /ebri I P1-- I L ?UKP I PAD _ . , 1.PK- I . I 0 5 o I I • PLLNTER L''.'_ISAY ' PLASTER LECDO: SOUK 3201h STREET ---- PROPERTY UNE' 0 30 r7 • S2-7 SOIL EORINC LOC T ON e D w-1 MONITORING WELL LOCATION !I.!c - SCALE FIGURE 2 SITE MAP FORMER EXXON R/S NO. 7-2518 2510 SOUTH 320th STREET . FEDERAL WAY, WA- KtDJECT NO. D?J.YH E'Y UM4-e4S LH. 3/2a/c6 • NO. PRUA4FD BY Delta MCI sN .A R.P. MTh ��/ V.OI:RORIIJC WELLS N.W-1, V.�'-2 A�+D IJK-3 WERE ?_ S;ON NO 'r.EJ,Er� Ef Environmental I S-DUED BY RV, Ave. V,AY 11M IY. 2 Con•ultcntc, Inc, 06/19/96 WED 17:00 FAX 2066614075 City of Federal WaY 0001 ******************8** ' *** TX REPORT *** ********************* TRANSMISSION OK TX/RX NO 0846 CONNECTION TEL 92412776 CONNECTION ID ST. TIME 06/19 16:57 USAGE T 03'01 PGS. 5 RESULT OK CITY OF FEDERAL WAY - OFFICE OF THE CITY CLERK �lstine Greeg, _MC_ City Clerk 33530 - 1st Way South Federal Way, WA 98003 FAX: (2061661 4075 DATE: JLYe J IC, I 11 d TO: MEGAN BLACKSHER -HIGHLINE TIMES FAX #: 241-2776 FROM: Chris Green, City Clerk or ob Baker, Deputy Clerk (206) 661-4070 (206) 661-407 i .tfi` NUMBER OF PAGES, INCLUDING COVER SHEET - 5 • RE: PLEASE PUBLISH. IN THE (p / ZZ, /96 ISSUE. - CITY OF i • (206)661-4000 N>� 33530 1ST WAY SOUTH FEDERAL WAY,WA 98003-6210 STATE ENVIRONMENTAL POLICY ACT DETERMINATION OF NON-SIGNIFICANCE Application No. SEP96-0013 Exxon Site Remediation Project Proposal: Delta Environmental Consultants, Inc., filed a land use application with the City of Federal Way to perform site remediation at a former Exxon service station. The purpose of the site work is to remove petroleum contaminated soil from the site. Applicant: Delta Environmental Consultants, Inc., 1756 114th Ave SE, Suite 101, Bellevue, Washington 98004. Contact: Andrew Smith, Delta Environmental Consultants, Inc. Type of Action: Land Surface Modification permit and Use Process I. Lead Agency: City of Federal Way City Contact: Michael Thomas, Senior Planner, City of Federal Way Land Use Division, 33530 1st Way South, Federal Way, WA 98003, Phone: 206-661-4104 The City of Federal Way, as lead agency for this proposal, determined the proposed action does not have probable significant adverse impact on the environment, and a Environmental Impact Statement (EIS) is not required under R.C.W. 43.21C.032 (2)(c). This decision was made following review of the submitted environmental checklist, related drawings and "Final Staff Evaluation for Environmental Checklist, Application No. SEP96-0013," and the Federal Way Comprehensive Plan and other municipal policies, plans, rules and regulations designated as a basis for exercise of substantive authority under the Washington State Environmental Policy Act Rules pursuant to R.C.W. 43.21C. and other information on file with the lead agency. This information is available to the public on request. The determination of nonsignificance is issued under Washington Administrative Code 197-11- 340. Pursuant to RCW 43.21C the City, as lead agency, will not act on this proposal for 21 calendar days from date of determination issuance. Any appeal of this decision must be done within the allotted 21 day comment/appeal period. Comments or appeals must be submitted no later than 5 p.m. July 15, 1996. Unless modified by the City, this determination will become final following expiration of the comment/appeal deadline. Questions regarding this environmental determination should be directed to Michael Thomas, Senior Planner, at 206/661- 4104. Responsible Official: Gregory D. Moore, AICP Position/Title: Community Development Services Director Address: 33530 First Way South, Federal Way, WA 98003 Signature. 8�9LQ Gr gory Mo e, AICP Comm y D lopment Services Director July 19, 1996 I:\DV PROJCT\EXXON\SEPDNS AFFIDAVIT OF PUBLICATION ' STATE ENVIRONMENTAL POLICY No. F14 ACT QETENATION OF NCA-SIONiFICANCE Application No.SEP96-0013 Exxon Site Remediation Project STATE OF WASHINGTON) Proposal: Delta Environmental Con- COUNTY OF KING )ss. sultants, Inc., filed a land use applica- tion with the City of Federal Way to perI, Marjorie Wooster, beingfirst dulysworn on oath Exxon service rmeion. Then at purpose former Exxon station. of deposes and says: That she is the Director of the site work is to remove petroleum Administration/Human Resources for The Federal Way contaminated soil from the site. News, a bi-weekly newspaper which is now and at all Applicant: Delta Environmental Con- th times herein mentioned has been published and printed in suli Inc., 1 , W Ave. SE, Suittee 101, Belleevv ue, Washington an office maintained at the place of publication at Federal 98004. Way, King County, Washington, that by order of the Contact: Andrew Smith, Delta Envi- Superior Court of the State of Washington in and for King ronmental Consultants,Inc. County, said newspaper is now and at all times mentioned catType of Action: Land Surface Modifi- herein has been approved as a legal newspaper for the Leadn permiten and City Usef Federal I. PP g Agency: of Federal Way publication of any advertisement, notice, summons, report, City Contact: Michael Thomas, Senior proceedings, or other official document required by law to Planner,City of Federal Way Land Use be published, that said newspaper was published regularly Division, 33530 1st Way South, Fed eral Way, WA 98003, Phone: 206-661- at least once each week, in the English language, as a 4104 newspaper of general circulation in Federal Way, King The City of Federal Way, as lead County, Washington, at the time of application to the agency for this proposal, determined aforementioned Superior Court for approval as a legal the proposed action does not have newspaper, and was sopublished for at least six months probable significant adverse impact on the environment, and a Environmental prior to the date of said publication, and is now and at all Impact Statement (EIS) is not required times mentioned herein has been so published. under R.C.W. 43.21C. ram. TM*r That the annexed is a true copy of a Notice by decision was made followinlyreviart d the submitted environniaatei ct.dd st the City of Federal Way of DNS for Exxon Site related dramas and "Final Staff Ewl- Remediation Project; No. SEP96-0013 upon for Environmental Cheat*,Ap- plication No. SEP96=0013," and the Federal Way Comprehensive Plan and as it was published in regular issues of said newspapers other municipal policies, plans, rules once each week for a and regulations designated as a basis period of one consecutive for exercise of substantive authority week(s),commencing under the Washington State Environ- mental Policy Act Rules pursuant to on the 22nd day of June , 1996,and ending R.C.W. 43.21 C. and other information on file with the lead agency. This infor- on the 22nd dayof June , 1996,both dates mation is available to the public on re- on quest. The determination of nonsignificance inclusive, and that said newspaper was regularly is issued under Washington Adminis- distributed to its subscribers and as a newspaper of general trative Code 197-11-340. Pursuant to circulation during all of said period. RCW 43.21 C the City, as lead agency, will not act on this proposal for 21 cal- endar days from date of determination at the full amount of the fee charged for the issuance. Any appeal of this decision forego' ublication is the sum 67.38 . must be done within the allotted 21 day comment/appeal period. Com- ments or appeals must be submitted no later than 5 p.m.July 15, 1996. Un- less modified by the City, this determi- ubscribed and sworn to before me this 28th day nation will become final following expi- f June , 1996. ration of the comment/appeal dead- line. Questions regarding this environ- mental determination should be di- rected to Michael Thomas, Senior Planner,at 206/661-4104. Responsible Official: Gregory D. Moore,AICP Notary Public in and for the t Washington Position/Title: Community Develop- Residing at Seattle. My commission expires 5/30/99. ment Services Director Address:33530 First Way South,Fed- eral Way,WA 98003 r""' p, /s/Gregory D. Moore, AICP, Commu- nity Development Services Director Published in the Federal Way News on June 22,1996. F14 1756-114th Avenue S.E. Delta Suite 110 Bellevue,WA 93004 • A Environmental 206/450-7726 AML Consultants,Inc.JFAX:2061450-SS37 April 18, 1996 CEcon Corp P.O. Box 1514 Tacoma, WA 98401-1514 Attention: Mr. Charles Engstrom Subject: Request for Bid Former Exxon R/S No. 7-2518 Federal Way, Washington Delta Project No. M094-845 Dear Mr. Engstrom: We are sending you this Request for Bid to perform excavation work at the above referenced site. The project will consist of the six tasks outlined below. The contractor shall assume that all activities will be performed according to the schedule described below. The locations of the areas described are shown on the attached site plan. Please provide a cost estimate for the following Scope of Work. PROJECT SUMMARY: Task 1: Preparation of Health and Safety Plan, set up temporary fencing around property and plastic orange fencing around each excavation overnight or when unattended, attend pre-construction meeting and perform utility survey. The limits of the proposed excavations are shown on the attached site plan. Task 2: Provide labor, materials and equipment to excavate, backfill and compact soil in the area of the former underground storage tanks. Area is estimated at approximately 30 feet by 40 feet by 15 feet deep. The area is asphalt covered. Task 3: Break up and remove concrete pad in the area of the former service islands. Removal and disposal of all concrete and asphalt will be the responsibility of contractor. Task 4: Provide labor, materials and equipment to excavate, backfill and compact soil in the area of the former service islands in the vicinity of SB-16, MW-2 and SB-14. The excavation area is estimated at approximately 25 feet by 25 feet by 8 feet deep. The area is asphalt and concrete covered. Wo, PIAKI Providing a Competitive Edge • • . Request for Bid Former bacon RJS N._. .-2518 Federal Way, Washington Delta Project No. M094-845 Page 2 Task 5: Transport petroleum impacted soil off-site to Rabanco's transfer station in Seattle. The soil will be transported following receipt of laboratory results and acceptance by Rabanco. Please provide your cost estimate based on a per yard basis in case the amount of soil to be transported is different than the amount estimated above for this project. Task 6: Provide costs for a per unit basis for less or more than the volumes estimated for the outlined base scope of work requested, including concrete and asphalt demolition, soil excavation and stockpiling, importing fill, backfilling, site restoration and cleanup and soil transportation. SCOPE OF WORK The contractor shall provide a bid to perform the following scope of work. If the scope of work is less or more than the base scope outlined below, then unit costs for these adjustments are included in Task 6 below. Task 1: Preparation 1. Provide all necessary safety precautions and equipment to protect its employees and the general public. 2. Prepare a written health and safety plan to cover contractor personnel during performance of the work. The plan should be prepared in accordance with applicable Washington Department of Labor and Industries requirements. 3. Attend a preconstruction meeting with Delta personnel. 4. Have a utility survey performed within the work area. 5. Mobilize and demobilize equipment to and from site. 6. Provide six-foot high temporary perimeter fencing around site and three-foot high orange plastic fencing around excavations. The contractor shall have the perimeter fence established on the first day of work and excavation fencing overnight and while excavations are unattended. Task 2: Remedial Excavation of UST Area 1. Remove asphalt and place in a separate stockpile for disposal. Assume that 1,200 square feet of two-inch thick asphalt will be removed. Transport asphalt off-site for disposal or recycling at an approved facility. The bid should include all recycling or disposal costs. 2. Excavate approximately 670 cubic yards (in-place volume) of soil. Petroleum impacted soil will be separated from non-impacted soil (estimated 50 percent each). Soil stockpiles will be placed on and covered with visqueen plastic. The plastic cover will be appropriately secured to protect soil from being uncovered. Asphalt will be stockpiled separately from soils. Delta Environmental Consultants, Inc. • Request for Bid Former Exxon R/S :.... ,-2518 Federal Way, Washington Delta Project No. M094-845 Page 3 3. Provide equipment to pump ground water entering excavation during digging. Ground water is measured in MW-1 at a depth of three to four feet. The horizontal hydraulic conductivity of 8 x 10-5 cm/sec is estimated for the soils in the vicinity of MW-1. Estimate a total of 3,000 gallons of ground water will be pumped during the excavation activities. Delta will provide for a Baker Tank to store ground water that is pumped from the excavation. Delta will also be responsible for coordination of the discharge of the water generated during this work. 4. Use excavating equipment to assist Delta in obtaining soil samples during the excavation and from the final excavation limits. Delta will perform field screening on the samples and will submit selected samples for laboratory analyses. Assume that 8 to 10 soil samples will be obtained from the final excavation limits. 5. Backfill the excavation using the excavated soil that is designated as "clean" and imported pit run material, and properly compact the backfilled material as discussed in the following paragraph. The backfill must be compacted to the specified density in all areas. 6. Each lift of on-site clean„ and imported soil should not exceed a loose thickness of 10 inches. Each lift from the excavation base to surface grade must be compacted by a minimum of five passes with a self-propelled vibratory roller or other appropriate equipment and achieve at least 90 percent of the maximum dry density as determined by ASTM D1557. Contractor will have appropriate compaction testing performed during the backfilling of all excavations. 7. Clean up the area after work is completed. The area must be left in a neat and orderly condition at the conclusion of the project. 8. If requested by Delta, provide costs for an increase or decrease from the base scope of services. Contractor shall supply information on the attached "Bid Summary" sheets for these services. The bid shall include unit cost estimates for concrete demolition, soil excavation and stockpiling, importing, backfilling and site restoration (asphalt replacement and site clean up). Task 3: Remove Service Island Concrete Pad 1. Demolish concrete slab in service island area. Assume that 1,300 square feet of four-inch thick concrete slab will be demolished. Transport concrete off-site for disposal or recycling at an approved facility. The bid should include all recycling or disposal costs. Task 4: Remedial Excavation of Service Island Area 1. Remove asphalt and place in a separate stockpile for disposal. Assume that 325 square feet of two to three-inch thick asphalt will be removed. Concrete is addressed in the task item above. Transport asphalt off-site for disposal or recycling at an approved facility. The bid should include all recycling or disposal costs. Delta Environmental Consultants, Inc. Request for Bid Former Exxon R/S 7-2518 Federal Way, Washington Delta Project No. N1094-845 Page 4 2. Excavate approximately 185 cubic yards (in-place volume) of soil. Petroleum impacted soil will be separated from non-impacted soil (estimated 50 percent each). Soil stockpiles will be placed on and covered with visqueen plastic. The plastic cover will be appropriately secured to protect soil from being uncovered. 3. Provide equipment to pump ground water entering excavation during digging. Delta will provide for a Baker Tank to store ground water that is pumped from the excavation. Delta will also be responsible for coordination of the discharge of the water generated during this work. The assumed volume of water generated from this excavation work is included in the estimate under Task 2. 4. Use excavating equipment to assist Delta in obtaining soil samples during the excavation and from the final excavation limits. Delta will perform field screening on the soil samples and will submit selected samples for laboratory analyses. Assume that six to eight soil samples will be obtained from the final excavation limits. 5. Backfill the excavation using the excavated soil that is designated as "clean" and imported pit run material and properly compact the backfilled material as discussed in the following paragraph. The backfill must be compacted to the specified density in all areas. 6. Each lift of on-site "clean" and imported soil should not exceed a loose thickness of 10 inches. Each lift from the excavation base to surface grade must be compacted by a minimum of five passes with a self-propelled vibratory roller or other appropriate equipment and achieve at least 90 percent of the maximum dry density as determined by ASTM D1557. Contractor will have appropriate compaction testing performed during the backfilling of all excavations. 7. Clean up the area after work is completed. The area must be left in a neat and orderly condition at the conclusion of the project. 8. If requested by Delta, provide costs for an increase or decrease from the base scope of services. Contractor shall supply information on the attached "Bid Summary" sheets for these services. The bid shall include unit cost estimates for concrete demolition, soil excavation and stockpiling, importing, backfilling and site restoration (asphalt replacement and site clean up). Task 5: Transporting Petroleum-Impacted Soil/Site Cleanup 1. After disposal permitting is completed by Delta, the contractor will load the stockpiled petroleum-impacted soil (650 cubic yards based on a fluff factor of 1.3) (825 tons based on a conversion factor of 1.5 tons per cubic yard) into trucks and transport it off-site for recycling or disposal. The contractor shall assume that the soil transportation will be completed within one week of the completion of excavation and site restoration activities. The soil will be transported to Regional Disposal Company's (Rabanco's) rail loading yard in Seattle for later disposal at Roosevelt Regional Landfill. Delta Environmental Consultants, Inc. • Request for Bid Former Exxon R/S No. ,-2518 Federal Way, Washington Delta Project No. MO94-845 Page 5 2. Contractor must remove and dispose of all debris, straw bales and plastic. 3. If requested by Delta, provide additional transportation and recycling or disposal services. Contractor shall supply information on the attached "Bid Summary" sheets for these services. The bid shall include unit cost estimates (per ton) for soil transportation. Attached is a map showing the approximate locations of the proposed excavations and concrete pad area. If you have any further questions or comments regarding this project, please feel free to call me at (206) 450-7726. Sincerely, DELTA ENVIRONMENTAL CONSULTANTS, INC. Pnsnd -CV" IC\ -G� rew J. Smith Project Manager Reviewed by: ///jellhot ( ' Markham C. Hurd Senior Geologist cc: Mr. Roger Hicks, Exxon Company, U.S.A. Mr. Mark Hatcher, Exxon Company, U.S.A. Attachments: Site Plan Bid Summary Delta Environmental Consultants, Inc. SUBSURFACE INVESTIGATION REPORT FORMER EXXON R/S NO. 7-2518 2510 SOUTH 320TH STREET FEDERAL WAY, WASHINGTON DELTA PROJECT NO. M094-845 Prepared for: EXXON COMPANY U.S.A. 10655 NE 4th, Suite 418 Bellevue, Washington 98004 Prepared By: DELTA ENVIRONMENTAL CONSULTANTS, INC. 3150 Richards Road, Suite 100 Bellevue, Washington 98005 (206) 649-9663 • 4). izowita &AA- 41/Siweta W. Ronald Bruce Markham C. Hurd Staff Geologist Senior Project Manager January 17, 1995 TABLE OF CONTENTS 1.0 INTRODUCTION 1 1.1 Purpose and Scope of Work 1 1.2 Site Description and Background Information 1 2.0 PROJECT ACTIVITIES 2 2.1 Drilling and Soil Sampling 2 2.2 Monitoring Well Installation and Groundwater Sampling 2 3.0 PROJECT RESULTS 3 3.1 Subsurface Lithologic Conditions 3 3.2 Groundwater Conditions 3 3.3 Quantitative Soil Analysis 4 3.4 Quantitative Groundwater Analysis 4 3.5 Onsite Containment of Drill Cuttings 5 4.0 CONCLUSIONS 5 5.0 REMARKS 5 FIGURES Figure 1: Site Location Map Figure 2: Site Map Figure 3: Inferred Groundwater Contour Map Figure 4: Soil Concentration Map TABLES Table 1: Water Level Measurements Table 2: Summary of Soil Chemical Analysis Table 3: Summary of Groundwater Chemical Analysis APPENDICES Appendix A: Summary of Field Procedures and Quality Assurance Plan Appendix B: Boring Logs Appendix C: Monitoring Well Construction Diagrams Appendix D: Laboratory Analytical Reports - Soil Appendix E: Laboratory Analytical Reports - Groundwater SUBSURFACE INVESTIGATION REPORT FORMER EXXON R/S NO. 7-2518 2510 SOUTH 320TH STREET FEDERAL WAY, WASHINGTON DELTA PROJECT NO. M094-845 1.0 INTRODUCTION 1.1 Purpose and Scope of Work Delta Environmental Consultants, Inc. (Delta) conducted a subsurface investigation at Exxon Company, U.S.A. (Exxon) former Retail Store (R/S) No. 7-2518 during the fourth quarter of 1994. The purpose of this investigation was to evaluate the extent of petroleum hydrocarbons in the soil and groundwater at the site. The subsurface investigation involved sampling the three existing monitoring wells at the site, advancing seven soil borings, collecting soil samples, installing monitoring wells in three of the seven borings, collecting groundwater samples from the new monitoring wells, submitting the samples for quantitative chemical analysis, interpreting the data obtained and preparing this report. 1.2 Site Description and Background Information The project site is a vacant lot located on the northeast corner of the intersection of South 320th Street and Gateway Boulevard in Federal Way, Washington (Figure 1). The ground elevation of the site is approximately 450 feet above mean sea level as depicted on the Poverty Bay, Washington quadrangle U.S. Geological Survey topographic map. The topography of the site is generally flat with a slight slope towards the south. The site vicinity is predominantly commercial. The properties to the north and west consist of retail shops in strip malls, to the south across South 320th Street are office buildings and an operating British Petroleum retail gas station, and a vacant lot is adjacent to the property to the east. According to the information obtained from RZA Agra's report dated July 19, 1991, the underground storage tanks (USTs) were installed when the building was constructed in 1969. These tanks consisted of a 6,000 gallon unleaded gasoline tank, an 8,000 gallon premium gasoline tank, a 10,000 gallon regular gasoline tank, two 500 gallon tanks, one for heating oil and one for used oil, and a 2,000 gallon holding tank. The site was decommissioned and the Subsurface Investigation 1 rt Former Exxon R/S No. 7-2518 2510 South 320th Street Federal Way, Washington Delta Project No. M094-845 Page 2 three gasoline tanks were reportedly removed in 1985. The used oil and :heating oil tanks were reportedly removed in 1988. It is unknown whether the 2000 gallon holdimg tank was removed or abandoned in place. 2.0 PROJECT ACTIVITIES 2.1 Drilling and Soil Sampling The subsurface exploration procedures involved advancing a total of seven soil borings, three to a depth of 20 feet (SB-4, SB-5 and SB-6), three to a depth of 15 feet (S13-7, SB-8 and SB-9) and one (SB-10) to a depth of ten feet. Groundwater monitoring wells MW--4, MW-5 and MW- 6 were installed in borings SB-4, SB-5 and SB-6, respectively. The borimgs were drilled near the perimeter of the site and around the former tank basin and used oil tamks. The locations of the borings and subsequent monitoring wells are presented on the Site Map, Figure 2. The borings were drilled on October 14, 1994 by Cascade Drilling of Wooaiinville, Washington. Cascade advanced each boring using a four-inch inside diameter hollow-item auger driven by a truck mounted CME-75 drill rig. The hollow stem augers, drilling equipment and sampling tools were steam cleaned prior to advancing each boring. During the advancement of each boring, the drilling process was continuously observed and logged, and discrete soil samples were collected by a Delta geologist. After collection, each discrete soil sample was screened in the field for the presence of volatile organic compounds with a photoiomz'ation detector (PID) to facilitate selecting representative soil samples for chemical analysis. Tale field sampling and quality assurance procedures followed during the exploration are summarized in Appendix A. Boring logs describing soil horizons, sample recovery and PID screening values are presented in Appendix B. 2.2 Monitoring Well Installation and Groundwater Sampling Upon completion of drilling, a two inch diameter polyvinyl chloride (PVC monitoring well was Delta Environmental Consultants, Inc. Subsurface Investigation Re Former Exxon R/S No. 7-2518 2510 South 320th Street Federal Way, Washington Delta Project No. Ai094-845 Page 3 installed in soil borings SB-4, SB-5 and SB-6 (MW-4, MW-5 and MW-6) prior to removal of the hollow-stem augers. Following installation, the monitoring wells were developed by purging approximately five well volumes of groundwater from each well. The wells were developed to establish a good hydrogeologic connection between the monitoring well and the surrounding formation. After well development, the groundwater in the monitoring wells was allowed to recover and stabilize for a minimum of one day before the depth to groundwater was re- measured, an additional three casing volumes of groundwater were purged and groundwater samples were collected from each well. The three new monitoring wells were purged and sampled on October 19, 1994. The groundwater samples were retrieved with a new disposable bailer and transferred immediately to laboratory prepared glass containers. Water samples to be analyzed for volatile compounds were placed in containers with a teflon septum/seal. Delta's Chain-of-Custody procedures were utilized to maintain sample integrity. Monitoring well construction diagrams are presented in Appendix C. 3.0 PROJECT RESULTS 3.1 Subsurface Lithologic Conditions Observation of the soil samples collected during the drilling process indicated two slightly different soil units in the subsurface environment. The shallowest soil unit ranges from below the asphalt surface to approximately three or four feet below grade. This unit is predominately sandy silt with trace gravels and cobbles. The soil underlying this unit is present to a depth of approximately 20 feet and consists of finer grained silty sand, and sandy silt with some clay and trace gravel. No petroleum hydrocarbon discoloration, odors, or sheens were evident during any of the field activities performed at this site. A more detailed description of the soil units observed is presented on the soil boring logs. 3.2 Groundwater Conditions Groundwater elevations were measured on October 19, 1994 in the pre-existing monitoring wells Delta Environmental Consultants, Inc. Subsurface Investigation R_,_rt Former Exxon R/S No. 7-2518 2510 South 320th Street Federal Way, Washington Delta Project No. 114094-845 Page 4 and the monitoring wells installed during this investigation. Groundwater was encountered at depths ranging from four to six feet below site grade. The elevation of the groundwater table appears to decrease towards the southwest which may indicate groundwater movement in this direction. The northeast-southwest hydraulic gradient for the site was obtained from groundwater elevations in monitoring wells MW-1 and MW-5. The difference in groundwater elevation indicated a hydraulic gradient of less than 0.02 feet per linear foot. Groundwater table elevations are summarized on Table 1 and inferred groundwater table elevation contours, relative to a benchmark assigned an elevation of 100.00 feet, are presented on Figure 3. 3.3 Quantitative Soil Analysis Soil samples collected from the seven borings were submitted to Curtis and Tompkins, Ltd. in Berkeley, California. The soil samples were analyzed for benzene, toluene, ethylbenzene and xylenes (BTEX) by EPA Method 8020, total petroleum hydrocarbons in the gasoline range (TPH-G)by Ecology Method WTPH-G, total petroleum hydrocarbons in the diesel range (TPH- D) by Ecology method WTPH-D and total lead by EPA method 7421. The laboratory did not detect concentrations above method detection limits of BTEX, THP-G or dissolved lead in any of the samples submitted for analysis. Total petroleum hydrocarbons in the diesel range were detected in sample SB-10-7.5 at a concentration of 100 parts per million (ppm). Laboratory results are summarized in Table 2, and on Figure 4, and laboratory reports are presented in Appendix D. 3.4 Quantitative Groundwater Analysis Groundwater samples collected from monitoring wells MW-1, MW-2 and MW-3 on October 4, 1994 and from monitoring wells MW-4, MW-5 and MW-6 on October 19, 1994 were submitted to Curtis and Tompkins, Ltd., for analyses. The samples were analyzed for BTEX, TPH-G, TPH-D, methyl tertiary-butyl ether (MTBE) and dissolved lead. The analytical laboratory tests performed on the groundwater samples collected from monitoring wells MW-4, MW-5 and MW- Delta Environmental Consultants, Inc. Subsurface Investigation Re, Former Exxon R/S No. 7-2518 2510 South 320th Street Federal Way, Washington Delta Project No. M094-845 Page 5 • 6 did not detect concentrations of any of these compounds. Analysis of the groundwater samples collected from monitoring wells MW-1, MW-2 and MW-3 indicated BTEX, TPH-G, TPH-D and dissolved lead concentrations. The BTEX and TPH-G concentrations detected are above Ecology's MTCA Method A cleanup levels. The results of the groundwater analyses performed for this study and historical analyses for the site are presented in Table 3 and on Figure 3. Laboratory analytical reports are included in Appendix E. 3.5 On-Site Containment of Drill Cuttings Soil cuttings generated from the subsurface exploration and sampling program were placed in 55-gallon Department of Transportation (DOT) approved steel containers for temporary storage on site. The containers were labeled identifying the contents of the drums, the origin of the contents, and the date generated. Soil analytical data were forwarded to Rabanco for disposal approval at the Regional Disposal Company (RDC) Landfill. Upon approval, the contents and barrels will be removed from the site and transported to RDC for disposal. 4.0 CONCLUSIONS Impacted soil and groundwater appear to be limited to the vicinity of the former UST basin, former dispenser islands and former used oil tank area. The monitoring wells installed in October 1994 near the perimeter of the site indicate that impacted groundwater is not present near the property boundaries. 5.0 REMARKS The conclusions presented in this report represent our professional opinions and are based on laboratory reports, information obtained during the field activities and on information supplied by the client. Our opinions are based on currently available information and are arrived at in Delta Environmental Consultants, Inc. Subsurface Investigation Rem.._t Former Exxon R/S No. 7-2518 2510 South 320th Street Federal Way, Washington Delta Project No. M094-845 Page 6 accordance with currently accepted hydrogeologic and engineering practices at this time and location. Other than this, no warranty is implied or intended. This report has been prepared for the exclusive use of Exxon Company, U.S.A., and their agents for specific application to this project in general accordance with our approved scope of work. 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T.L --, n -"';'S ) 5 \ ' NI... --) ("2-,, ‘,..,. -,- . c ,_-_,; . ...,:j • ‘, ) .;-.-- . ..,•:::---:••• •,.'..,J.,,J, .• \ •:.":,:,f. -.-=---- -••\• "••`:12 t\ "V.. ---' '•:•' \ - ': 1 • k.-0;.....52-1-• ../ f —Ta x. \\ s; L...L$ "••.,1 cli , • 1, • . • tii) ‘ '.••6.:•• .,, '--- .le • i ":".o' \1 5.4'Y•• . ...t.'"• • .4-. • " ''' . . 1 .l>. t :••:_; ••, A • ••••••,---7 r-.-,-,, ) .. kx_ .1.-- l_r_ __3:: 1.-)` . ir,.,, •,-., ye reen '>---,--- ' • ••-•...•t ., , Ne % •• •_,'_2%:'.' /„.55t_/'/ Q., illi. • •ec?'•jr/A ::-;:;;;-\ ',.../;•••' (•"\ . a t , I f / • , „O , / .. VC. ,,d. 1..\ i '-. ..'- '.4,'•,..:\l''\ I. , .7.. ; 17:a lief•I ". i • li .1, y Lf---,,, R 4 E GENERAL NOTES: BASE MAP FROM U.S.G.S. Ai FIGURE 1 POVERTY BAY, WA 7.5 MIN TOPOGRAPHIC QUADS 1 SITE VICINITY MAP PHOTOREV1SED 1981 -(;-=---,,, NORTH FORMER EXXON RS NO.7-2518 2510 SOUTH 320TH ST. FEDERAL WAY, WASHINGTON 0 2000 PROJECT NO. DRAWN BY: IN M094-845 R.B. FILE NO. PREPARED BY: Delta SCALE 1:24,000 R.B. A Environmental REVISION NO. REVIEWED BY: M. Consultants,inc. 0 r—r--1 — — — — — OPEN SPACE — — — —1 1 I FORMER USED OIL 1 ) ,North TANK Loc ()Ns '/ f 1 2.000 HOLDING 11 r TANK L 0 MW-3 1 SB-10 • 1 I 1 FORMER BUILDING LOCATION 1 ` 06 J 1 I 1 SB-7 O I /^\ , I STORAGEFOR `// / ���SB-8,WFORMER LOCATIONS \/4W-1 PUMPI SS AND / PAD I >. MW-2 ��/ I I 41 • SB-9 1 K 1 L _____I 1 I MWO-4 I MW0-5 / I 1 L__ — — PLANTER — — — — — — — —PLANTER LEGEND: SOUTH 320th STREET —--— PROPERTY UNE 0 30 FT • SB-7 SOIL BORING LOCATION 0 MW-1 MONITORING WELL LOCATION SCALE FIGURE 2 SITE MAP FORMER EXXON R/S NO. 7-2518 • 2510 SOUTH 320th STREET FEDERAL WAY, WA. PROJECT NO. DRAWN BY M094-545 DNR 1/13/95 FILE NO. PREPARED BY D.tfa M094845A R.B. Enn NOTE MONITORING WELLS WW-1, MW-2. AND MW-3 WERE REVISION NO. REVIEWED BY A Consuvlrotfantrm�nfal, Inc. INSTALLED BY RZA Ave. MAY 1991. 1 F7 _ _ --, B 17 I I FORMER USED OIL z K OPEN SPACE North LJ TANK LOCATIONS wH--e ma1Pli-D <300 2,000 GAL. Ill .. IRPH 144 "° HOLDING 11 r. TANK L J L'--I 3 I SB-10 • (96.90) -I I I FORM BUILDING LO ON MW-6 9 ___� s.5oZ—e?s _-_J _� r T X <03 SB-7 71.14-0 <300 • NA m I 'Pb RPH <3.0 �/ \ „ FORMERTOA < I /N Ss—�LU TAIO \"MW-1 FPUM LOCATIONS "t /z W ISLAND P PAD I B GO 84 N. MW-2 9S•?S \�� e 150 I 0 (96.02) • TPH-G e 00 B 5TD 7 7 SB-9 T PH <M K Pe t7 E i0 V Zx--e 35 PH 000 7PH-D <300 I L _____.1Pin 5. T <0.5 13 X <0.5` 86 S TPH-D <300 0 4 T <05.5 'MPH (96.02) E <0.5 <0.5 MW-5 1Po <<50 0 `300 (95.53) Pb <3.0 L_I — — PEER — — — — — - - -PLANTER IL_ xTBM LEGEND: SOUTH 320th STREET —--— PROPERTY LINE 0 30 FT • SB-7 SOIL BORING LOCATION 0 MW-1 MONITORING WELL LOCATION SCALE (95.53) GROUNDWATER ELEVATION RELATIVE TO TEMPORARY BENCH MARK (TBM) FIGURE 3 --95.75.--. WATER TABLE CONTOUR RELATIVE TO TBM INFERRED GROUNDWATER CONTOUR MAP ..-. INFERRED DIRECTION OF GROUNDWATER MOVEMENT FORMER EXXON R/S NO. 7-2518 GROUND WATER WIG B <0.5 BENZENE IN PARTS PER BILUGH(PPP) 2510 SOUTH 320th STREET T <os TOLUENE IN PPS E <0 FEDERAL WAY, WA. <0.5 XYL<0.5ETHf1BEMD�E WI IN PPS 7PHx-0 <50 TOTALPETRO EUY HYDROCARBON AS GASOLINE N PPS PROJECT NO. DRAWN BY TPH-D <50 TOTAL PEIROLEUU HYDROCARBON AS D"SEL IN PPS M094-845 DNR 12 20 94 TRPH <500 TOTAL REC0Vt8.AB'JE HYDROCARBONS W PPS Pb <3 DISSOLVED LEAD IN PPS FILE NO. PREPARED BY Nita 41094845A R.B. Environmental NOTE MONITORING WELLS MW-1, MW-2 AND MW-3 WERE REVISION NO. REVIEWED BY JA. Consultant*, Inc. INSTALLED BY RZA Agra, MAY 1991. 1 1----,---, 7 1 1 FORMER USED OIL OPEN SPACE North Lf.1 <to TANK LOCATIONS 1 2.000 GAL x <0.1 I 1 HOLDING ,', -l ('-1 TANK Pb+ <115 0 MW-3 1 SB-10 1 `I FORMER BUILDING LOCATION MW-6 B <01)1 \ ---� J E <0.1 1 I—kJ 1 T <<00.1 IPTI <os 1 E <0.1X <0.1 TRPH J eb NA 1 TPC 0.5<3 S <3 �7 <as O 1 PbTRPH <0.3 //\ 1 Qla / )^\FORMER 1 STORAGE �/ `-1 ��\S3-88 W TANK FORMER LOCATIONS \ off /, T <<00.1 VZ PUMP / E <0.1 ISLAND \\� // X <0.1 PAD \ / 1 "RPM NA I N. MW-2 v e • 1 W E m1 SB-9 7TP0 <3 MPH NA Pb <0.3 1 MW-4 B <0., 0 T <0.1 E <0.1 T <0.1 TPB <0.1 H-C <0.5 .............j MW-5 z <0.1 TPH-0 <3 TRPII NA 1 e PH4-0 <3 Pb <os 1 *MPH NA Pb <03 LL.L - - PLANTER - - - - - ._ - - PLANTER SOUTH 320th STREET LEGEND: 0 30 FT —--— PROPERTY UNE Ii • 58-7 SOIL BORING LOCATION e MW-1 MONITORING WELL LOCATION SCALE FIGURE 4 soa°"T" SOIL CONCENTRATION MAP 8 <0.1 BENZENE PARrs PER n1I0H(PP1Q T <0.1 BERM I PRI AR u FORMER EXXON R/S NO. 7-2518 E <0.1 ElNYLBE ZE E N PRI X <0.1 XYLDNE N PRI 0 <300<0.50 TOTAL PP I�AS o`er pP,i°" 2510 SOUTH 320th STREET TPPN NA TOTAL RECOVER WE Ht9ROCJRBOtS N PRI Pb "0 TOTAL`E"N PR" FEDERAL WAY, WA. NA NOT ANALYZED PROJECT NO. DRAWN BY IJ094-845 DNR 1/11/95 FILE NO. PREPARED BY DaNa NOTE: M094843A R.B. Environm*nfal MONITORING WELLS MW-1, MW-2 AND MW-3 WERE INSTALLED REVISION NO. REVIEWED BY A Consultants, Inc. BY RZA Agra, MAY 1991. 1 TABLE 1 Water Level Measurements Former Exxon R/S No. 7-2518 2510 South 320th Street Federal Way, Washington Delta Project No. MO-94-845 Reference Depth to Groundwater Liquid Phase Elevation (feet) Groundwater Elevation Hydrocarbon Monitoring Well Date (Top of Casing) (feet) (feet) Thickness (feet) MW-1 10/04/94 101.19 4.24 96.95 0 10/17/94 4.49 96.70 0 10/19/94 NM NM NM MW-2 10/04/94 101.07 4.78 96.29 0 10/17/94 5.02 96.05 0 10/19/94 NM NM NM MW-3 10/04/94 102.39 5.39 97.00 0 10/17/94 5.49 96.90 0 10/19/94 NM NM NM MW-4 10/04/94 100.29 NM NM NM 10/17/94 4.27 96.02 0 10/19/94 4.31 95.98 0 MW-5 10/04/94 100.66 NM NM NM 10/17/94 5.13 95.53 0 10/19/94 5.23 95.43 0 MW-6 10/04/94 101.90 NM NM NM 10/17/94 5.40 96.50 0 10/19/94 5.51 96.39 0 Elevations are relative to a temporary benchmark aligned an elevation of 100 feet. Rev.12/01/94wrb 4Q94WLM.84S < o . G o - o 0 0 V: 7 Y V; V; Y v. N C "7 V V V V V V V n ,y .—a,▪ O O C N w G v: — C CCC' C V V V V V V o N r: Ci V . v. ,f, . V. V. oo C . V V V V V V V V V c c c Cl) tr. .a ..• N o ono r < 0 o Z O F, Z o o c c o 0 0 U Z o r.; 'G V V V V V V V -r. c e'-1 G CA c Cq 0 r cax .... Z %� O Z� w . x t. N < C. o 0 0 o c o o c d O ..,... .< Z V V V V V V V u. v x .1 x G a - Z ... oz cn CD _ . E • C O C O _ _ O N , p, p V V V V V V V cc ' F O U L..,, O • O O G O O G O N ,n o Z V V V V V V V Coo " ° c t — f. .V. u ❑ o • u c N v O o u 7 Y T T T Y Y 9. c =) c_. -. c. `. c. a a -. c n o 8. p. < =' - - Y -r - Y Y 2 . ti P E c 2 ' 0 0 .7. < G G G G G G c • , w 1 r ✓, n w o . u J E ... E c _ At - E C' _c = F o h i — mi o ,a 00 O o G G G t` G C ^ y y L., g _ ti —i , 7. - Inr. • N V) / '1) 'f/, V.' f i. u I O O O E m < —- u o u n z z z v o _ _ n 0 n E 2 I A W .tea A o 0 0 `` s.6 M r) "‘..1M 1 N I O O W v V V V V I I if; A I i 1 1 O O O Cr Q Q Q No W E-, v v v z z z z 1 0 0 0 0 0 0 CO g ....1 r: CM M r: r: r:i C C F V V V V V V I .1 r, I c7 .r > O cmO O a w: O O tr. C C. V N " V V V 0 ° C E. o U '.1 O o`oo q v: v: v: o 0 Z P Z Z� coo o 0 0 0 0 U o "1 V V V ' oo N W W a C Z k C 0 + E. q . � W F A Pc ODI > Q W z o ..1 a >4 W.. O v; tr, v; o O a A., ...I N v O N O O O No O ar_a l('' C Z "" — "" V V V oop i xN a C v W W to a ::, OA W r. c a W C nO CI 'NV N v v 6v coo 7 F n E., a u zo W O v, v; tr. o 15 N r 0 0 0 0 0 U p c - C S — 1 $ u d A i0 1 e 11 . .. d' .. v v m a Ea ; ZZZcsc ! . tti og ; Q n o 0 0 0 0 0 01 . $ $ d C aa u v -o : ... p E 0 Ug E E v� Su o CE oz >, - o o 1d s a .Z .. N cr. v .r. so O _ ?74 Oe u ~O u o m e . u A Or `.-1 C S II e Z o E Ri iG Q 0 3 C. A i I ) s U n z z 8 APPENDIX A SUMMARY OF FIELD PROCEDURES AND QUALITY ASSURANCE PLAN FIELD PROCEDURES Discrete soil samples were collected from each boring at five foot intervals to characterize site soils with respect to petroleum hydrocarbon impact. All samples were obtained by driving a split spoon sampler eighteen inches ahead of the auger into undisturbed soils with a 140 pound hammer. The split spoon was removed from the boring and the soil sample retrieved. Soil samples were collected in laboratory prepared glass jars, labelled, and immediately placed in cold storage until they could be submitted to the laboratory for analysis. The samples were transported to the laboratory by United Parcel Service and Delta chain-of-custody procedures were maintained to document sample integrity. All laboratory analyses were performed by Curtis & Tompkins, Ltd, of Berkeley, California. During the drilling program, soil samples were screened using a photoionization detector (PID). The PID utilized was an organic vapor meter by Thermo, Inc., Model 580 B equipped with a 10.2 eV ultraviolet (UV) lamp and calibrated to benzene standards with isobutylene for direct readings in parts per million (ppm). The operating range of the detector is from 0 to 2,000 parts per million (ppm) with a minimum detection limit of 0.1 ppm. Detected concentrations are considered semi-quantitative data as PID's are sensitive to a wide range of chemicals and do not provide compound specific measurements or identification. Soil samples were placed in plastic bags, sealed and brought to approximate ambient air temperature. The OVM probe was inserted into an opening of the plastic bag and the reading noted. The soil within the bag was agitated during the reading process to aid in mobilization of volatile organic vapors. Although the PID is not capable of quantifying or identifying specific organic compounds, it is capable of measuring a variety of organic vapors frequently associated with petroleum hydrocarbons. ANALYTICAL METHODS General Sample Collection and Handling Procedures Proper collection and handling are essential to ensure the quality of the sample. Soil samples were collected in laboratory prepared glass jars, placed in a chilled ice chest and delivered to the laboratory for chemical analysis. The soil samples were analyzed within the recommended holding time. Sample Identification and Chain-of-Custody Procedures Sample identification and chain-of-custody procedures ensure sample integrity and document sample possession from the time of collection to delivery to the laboratory. Each sample submitted for analyses was labeled and identified with the project number, date and time of Field Procedures Page 2 sample collection, sampler and sample number unique to the sample. This information, in addition to any field measurements noted, names of on-site personnel, and any other pertinent field observations were recorded in the field notes. All samples were analyzed by Curtis and Tompkins, Ltd., located in Berkeley, California. Upon arrival at the laboratory, the sample control personnel at the laboratory verified sample integrity and confirmed that the sample was collected in the proper container, packaged correctly, and that there was adequate volume of sample for the required analyses. The laboratory assigned a unique log number for identification of each sample throughout analyses and reporting. The log number was recorded on the chain-of custody form and in the legally required log book maintained in the laboratory. The sample description, date received, client name, and any other relevant information was recorded. Analytical Quality Assurance In addition to routine calibration of the analytical instruments with standards and blanks, the analyst is required to run duplicates and spikes on 10 percent of the analyses to insure an added measure of precision and accuracy. Accuracy is also verified through the following: 1. U.S. Environmental Protection Agency (EPA) and State certification programs. 2. Participation in an inter-laboratory or "round-robin" quality assurance program. 3. Verification of results with an alternative method. For example, calcium may be determined by atomic absorption, ion chromatography, or titrimetric methods. Volatile organics may be determined through either purge and trap or liquid extraction methods. Analytical Methods The analytical tests performed for this evaluation were chosen based upon standard guidelines issued by the Washington Department of Ecology. Samples collected during this investigation were analyzed by the following methods: 1. Gasoline range total petroleum hydrocarbons (TPH-G) by EPA Method 5030/8020, purge and trap (WTPH-G). 2. Benzene, toluene, ethylbenzene, and xylenes (BTEX) by EPA Method 8020. 3. Diesel range total petroleum hydrocarbons by EPA Method 3550/8015 (WTPH- D). 4. Total lead by EPA Method 7420. APPENDIX B BORING LOGS Prot Boring PROJECT NAME/LOCATION:. Number M094-845 Number B 4/MW 4 Former Exxon No. 7-2518 Con Dr llmg'; 2510 South 320th tractor Cascade Drilling Method 4'4" ID HSA Federal Way, WA Driller Scott Drilling Rig :I CME-75 Start 7:00 a.m. 10/14/94 Completed> 7:55 a.m. 10/14/94 Landowner: Surface Logged Elev. — By Ron Bruce Sample Sample Depth Observations Blow Scale Descriptions of Materials Type; No Count ' RaO I. 4' and Conditions ins�umeac ovM u�cs: P ' Comments 0 Asphalt — Gravel to 1 ft. — 1 Fill to 2.5 ft. 2 -- ` 3 SANDY SILT; light gray, dense, dry (ML) 4 SB MW-4-5 38 5.0-5.8 8 5 SANDY SILT; dark grey, very dense, damp 0 50 for — (ML) — 4" 6 7 8 9 SB MW-4- 96 for 10.0- 6 10 SILTY CLAY WITH SAND; dark 0 10 6" 10.6 11 — gray-brown, very dense, moist(CL) — 12 13 14 SB MW-4- 100 for 15.0- 5 15 — SANDY SILT WITH CLAY AND TRACE 0 15 6" 15.5 16 — GRAVEL; gray to brown, very dense, very — Harder till moist (ML) encount- 1.� — — ered at -16ft. 18 19 SB MW-4- 100 for 20.0- 3 20 SANDY SILT WITH GRAVEL; light brown, 0 20 3" 20.3 21 — very dense, damp (ML) — 22 — Boring terminated at 20 ft. — 23 • BOREHOLE WATER LEVEL DATA . Date Time Delta A Environmental GWL ConsuRants,Inc. Casing Sheet 1 of 1 Depth Rev. December 5.1554 Project:> Boring PROJECT NAME/LOCATION: Number M094-845 Number SB-5/MW-5 Former Exxon No. 7-2518 Con- Drilling 2510 South 320th tractor Cascade Drilling Method 4%" ID HSA Federal Way, WA Driller Scott Drilling Rig CME-75 Start 7:55 a.m. 10/14/94 Completed', 8:45 a.m. 10/14/94 Landowner: Surface Logged Elev. — By Ron Bruce Sample Sample Depth Observations Blow Scale Descriptions of Materials P IntervalTU Type:. Na; Count R�O`'"�' 1" = 4 ! and Condtttons lnstmefl. OVM PPm .;Comments . 0 Asphalt — Gravel — 1 - Cobbles, gravel to 5 ft. 2 — — 3 — 4 — — SB SB-5-5 65 5.0-6.5 18 5 — SANDY SILT; tan-light brown, very dense, 0.4 6 — dry (ML) — 7 8 — — 9 — SB SB-5-10 50 10.0- 9 10 SANDY SILT WITH TRACE GRAVEL; light — 1.1 50 for 10.75 — gray to tan, very dense, dry (ML) — 3" 11 . 12 — — 13 — 14 SB SB-5-15 65 for 15.0- 6 15 SANDY SILT WITH SOME GRAVEL; light 0 6" 15.5 16 — brown-tan, very dense, dry (ML) — 17 — 18 19 — —SB SB-5-20 100 for 20.0- 4 20 SANDY SILT WITH SOME GRAVEL; light 0 Spoon 4" 20.3 21 — brown-tan, very dense, wet — obstructed by rock. 22 — Boring terminated at 20 ft. — Redrove sample 23 — — BOREHOLE WATER LEVEL DATA Date Time Delta GWL /,. Consultants,Inc. Casing Sheet 1 of 1 Depth Rev. December 7.1954 Prof Boring PROJECT NAME/LOCATION: Number M094-845 Number_ SB-6/MW-6 Former Exxon No. 7-2518 <Con Dritlmg 2510 South 320th factor'; Cascade Drilling Method: 4 " ID HSA Federal Way, WA Driller Scott Drillmg Rig CME-75 Start 8:55 a.m. 10/14/94 Completed 10:00 a.m. 10/14/94 Landowner: • Surface i ogged: Elev. — By Ron Bruce Sample Sample Depth Observations... Blow Scale Descriptions of Materials Type Noi Count U' `'t Ra6i Y 1 4' and Conditi©ns tnst:umea[ OVM > urns P :.':,Comments. 0 Grass — SAND WITH SOME SILT; cobbles — 2 3 4 SB SB-6-5 81 5.0-6.5 18 5 SANDY SILT WITH TRACE GRAVEL; light 2 6 — gray, very dense, damp (ML) .� 7 8 — 9 SB SB-6-10 100 for 10.0- 4 10 — SILTY SAND WITH TRACE FINE 3 6" 10.3 11 — GRAVEL; brown, medium to coarse grained — sand, very dense, damp (ML) 12 13 14 SB SB-6-15 100 for 15.0- 5 15 — SANDY SILT WITH GRAVEL; medium gray, 8 5" 15.4 16 — fine grained sand, very dense, dry (ML) — 17 18 ` V 19 SB SB-6-20 175 for 20.0- 20 Boring terminated at 20 ft. — 4 6" 20.4 — — 21 22 — 23 BOREHOLE WATER LEVEL D•ATA ;'Date Time Delta �. Environmental GWL • Consultants,Inc. Gasmg Sheet 1 of 1 Depth Rev. Decembcr 7.1994 Project Boring <' PROJECT NAMEfLOCATION: Number- M094-845 Number.:::: SB-7 Former Exxon No. 7-2518 Con- Drilling 2510 South 320th tractor Cascade Drilling Method: ,> 4 S4" ID HSA Federal Way, WA Driller. Scott DkK rilltn Rig ;; CME-75 Start 10:00 a.m. 10/14/94 Completed: 10:30 a.m. 10/14/94 Landowner: Surface :- Logg Elev — By Ron Bruce Sample Sample Dept Observations . .. .: Blow • .•Scale Descri tions of Materials P Type: No Count R�O`'�` 1' 4 and Conditions insr ovivi imlr CortiIIieritsi 0 Asphalt 1 — 2 SILTY SAND WITH GRAVEL; light brown, 3 — medium dense, damp — 4 — SB SB-7-5 20 5.0-6.6 18 5 SANDY SILT WITH SOME CLAY; light 3 31 6 — brown and gray, mottled, very dense, damp — (M ) 7 — — 8 —' — 9 — SB SB-7-10 65 for 10.0- 10 10 SANDY CLAY WITH SOME SILT; light gray • 2 6" 10.10 11 — and light brown, very dense, damp (CL) — 12 — 13 — — 14 +' — SB SB-7-15 90 for 15.0- 6 15 SANDY SILT WITH SOME CLAY; gray and 2 6" 15.6 16 — light brown, very dense, moist/wet (ML) — 17 — Boring terminated at 15 ft. 18 — 19 — 20 — 21 — 22 — — 23 — BOREHOLE WATER LEVEL DATA Date..... Time Delta GW ��.,.....:::....:... . Environmental L Consultants,Inc. casing Sheet 1 of 1 Depth Rev. December 7.1954 Project Boring PROJECT NAME/LOCATION Number' M094-845• Number:>:: SB-8 Former Exxon No. 7-2518 Con Drilhng;'. 2510 South 320th tractor '. Cascade Drilling Method 414" ID HSA Federal Way, WA Driller Scott Dritttn Rig CME-75 Start 10:40 a.m. 10/14/94 Completed 11:10 a.m. 10/14/94 Landowner: surface Logged :< By ;I Ron Bruce Sample Sample Depth • Observations Bl • ow Scale Descriptions of Materials Type: No : Count tncec,at Rxa.«y 1" q> and Conditions �„�,•,m OVM ;. mm 0 Asphalt 1 2 - Fill 3 — -- -- 4 — — SB SB-8-5 45 5.0-6.0 12 5 - SANDY SILT WITH GRAVEL; light gray, 1 50 for — very dense, damp to moist (ML) — 6" 6 7 —. 8 — 9 - SB SB-8-10 38 10.0- 12 10 2 50 11.0 11 — 12 13 14 SB SB-8-15 92 15.0- 6 15 — SANDY SILT WITH GRAVEL; light gray, 2 15.5 16 — very dense, moist/wet (ML) — 17 — Boring terminated at 15 ft. — 18 19 20 21 — 22 — 23 BOREHOLE WAT• ER LEVEL DATA Date Time Delta A Environmental OWL Consultants,Inc. cis,°g Sheet 1 of 1 Depth Rev. December 7.1%4 Project Borutg 'i PROJECT NAME/LOCATION Number M094-845 Number::<' SB-9 Former Exxon No. 7-2518 Con- :` Dnlhig 2510 South 320th tractor Cascade Drilling Method;:; 41/4" ID HSA Federal Way, WA Driller Scott Driltm • Rig CME-75 Start 11:15 a.m. 10/14/94 Completed' 11:50 a.m. 10/14/94 Landowner: Surface :' jogged:. Elev — By Ron Bruce Sample Sample Depth Observations Blow Scale tins of Materials Type No Count inrerv�f Rao y > 4' dd Conditions; .. tip (ftl (mj is wt. ovM C 0 Asphalt 1 2 __. SANDY SILT WITH GRAVEL; light brown, 3 — dense, damp — 4 SB SB-9-5 67 5.0-6.5 18 5 SILT WITH TRACE SAND AND CLAY; 1 6 — gray and brown, very dense, damp (ML) — 7 —8 • 9 SB SB-9-10 75 10.0- 4 10 — SANDY SILT WITH FINE GRAVEL; dark — 1.0 10.3 11 — gray, very dense, moist(ML) — 12 13 -` 14 SB SB-9-15 100 for 15.0- 6 15 SILTY SAND WITH GRAVEL; dark — 6" 15.5 16 — gray-brown, very dense, wet(SM) — 17 — Boring terminated at 15 ft. — 18 19 20 —21 — -` 22 -` 23 BOREHOLE WATER LEVEL DATA Date Time Delta /. Environmental GWL Consultants,Inc. G 'ng Sheet 1 of 1 Depth :. Rev. December 7.1994 Project Boring .'. PROTECT NAME/LOCATiON Number M094-845 Number:...•< SB-10 Former Exxon No. 7-2518 Con- • Drilling 2510 South 320th tractor Cascade Drilling •Method 4 S4" ID HSA Federal Way, WA Driller Scott Drtlltn • Rig CME-75 Start 11:50 a.m. 10/14/94 Completed 12:20 p.m. 10/14/94 Landowner: Surface Logged Elev. — By Ron Bruce Sample Sample Depth Observations Blow Scale Descn trons of Materials p Type' No Count tntavat Recovery 1" 4 and Conditions: lnm+meat OVM 0 Asphalt 1 2 - SANDY SILT WITH SOME GRAVEL; fine 3 — grained sand (ML) — 4 SB SB-10-5 32 5.0-6.5 18 5 - SILTY SAND WITH GRAVEL; red-brown, 1 50 6 — very dense, dry (SM)7 — SB SB-10- 70 for 7.5-8.25 8 —-------- ------- — 1 7.5 6" 8 SANDY SILT WITH GRAVEL; gray, very 9 — dense, dry (ML) — SB SB-10- 80 for 10.0- 6 10 SANDY SILT WITH GRAVEL; gray, very 1 10 6" 10.5 11 — dense, dry (ML) — 12 — Boring terminated at 10 ft. — 13 14 15 16 17 18 19 20 21 22 23 $:.OREHOLE WATER LEVEL DATA Date._.. <,. .................. ........... .... ................................... Tune Delta GWL /. Environmental Consultants,Inc. Casrng Sheet 1 of 1 Depth Rev. December 5.1994 APPENDIX C MONITORING WELL CONSTRUCTION DIAGRAMS INSTALLA' N OF FLUSH GRADE MON RING WELL Project Former Exxon R/S No. 7-2518 Monitoring Well No. MW-4 2510 South 320th Elevations: Federal Way, WA Top of Riser: Delta No. M094-845 Ground Level: PROTECTIVE CASING ri- ///\\\\f/ 1 ` -1 / LOCKING WATERTIGHT CAP FLUSH GRADE WELL CONSTRUCTION DIAMETER AND MATERIAL TOTAL LENGTH ////c/i--- ////// � THICKNESS & TYPE OF SEAL 12-inch cement L2 4 1I AMETEK, MATERIAL, & JOINT TYPE OF RISER PIPE 2-inch PVC SCH 40 threaded 4 TYPE OF BACKFILL AROUND RISER Cement L4 /� / 4j THICKNESS & TYPE OF SEAL 2 feet bentonite = TDISTANCE OF FILTER SAND ABOVE TOP OF SCREEN 2feet _ TYPE OF F I LTER AROUND SCREEN No. 3 Monterey sand MONITORING WELL MATERIAL PVC L3 0 SCREEN GAUGE OR SIZE OF OPENINGS (SLOT SIZE) 10.010 inch _ D I AMETER AND LENGTH OF SCREEN 15 feet x 2 inches DEPTH TO THE BOTTOM OF MONITORING WELL 20 feet DEPTH TO THE BOTTOM OF FILTER SAND THICKNESS & TYPE OF SEAL 14 1'4 4 DIAMETER OF BOREHOLE L1 = FT Monitoring Well Water Level Measurements L2 = 5.0 FT Date Time Water Level* L3 = 15.0 FT L4 = FT Installation Completed Date: Time: fDetta * Measure Point INSTALLA )N OF FLUSH GRADE MON )RING WELL Project Former Exxon R/S No. 7-2518 Monitoring Well No. MW-5 2510 South 320th Elevations: Federal Way, WA Top of Riser: Delta No. M094-845 Ground Level: PROTECTIVE CASING 7 , 6z-1-4 ./�� LOCKING WATERTIGHT CAP V FLUSH GRADE WELL CONSTRUCTION DIAMETER AND MATERIAL TOTAL LENGTH //////77/:-- ----7-///: THICKNESS & TYPE OF SEAL 12-inch cement L2 f IAMETER, MATERIAL, & JOINT TYPE OF RISER PIPE 2-inch PVC SCH 40 threaded 4 TYPE OF BACKFILL AROUND RISER Cement L4 / / ll THICKNESS & TYPE OF SEAL // 2 feet bentonite I = DISTANCE OF FILTER SAND ABOVE TOP OF SCREEN 2feet _ TYPE OF FILTER AROUND SCREEN No. 3 Monterey sand _-4 MONITORING WELL MATERIAL PVC L2 S— SCREEN GAUGE OR SIZE OF OPENINGS (SLOT SIZE) 0.010inch _ li DIAMETER AND LENGTH OF SCREEN _ 15 feet x 2 inches DEPTH TO THE BOTTOM OF MONITORING WELL 20feet 74 DEPTH TO THE BOTTOM OF FILTER SAND / THICKNESS & TYPE OF SEAL r l r1 I1-. DIAMETER OF BOREHOLE L1 = FT Monitoring Well Water Level Measurements L2 = 5.0 FT Date Time Water Level* L3 = 15.0 FT L4 = FT Installation Completed Date: Time: DeltaAA * Measure Point INSTALLAT N OF FLUSH GRADE MONI RING WELL Project Former Exxon R/S No. 7-2518 Monitoring Well No. MW-6 2510 South 320th Elevations: Federal Way, WA Top of Riser: Delta No. M094-845 Ground Level: PROTECTIVE CASING / ��� LOCKING WATERTIGHT CAP / y FLUSH GRADE WELL CONSTRUCTION DIAMETER AND MATERIAL TOTAL LENGTH THICKNESS & TYPE OF SEAL 12-inch cement L2 f7I AMETEK, MATERIAL, & JOINT TYPE OF RISER PIPE 2-inch PVC SCH 40 threaded TYPE OF BACKFILL AROUND RISER Cement L4 THICKNESS & TYPE OF SEAL 2 feet bentonite ' DISTANCE OF FILTER SAND ABOVE TOP OF SCREEN 2feet • • TYPE OF F I LTER AROUND SCREEN No. 3 Monterey sand 41 MONITORING WELL MATERIAL PVC L3 SCREEN GAUGE OP SIZE OF OPENINGS (SLOT SIZE) 0.010 inch 4 DIAMETER AND LENGTH OF SCREEN 15 feet x 2 inches DEPTH TO THE BOTTOM OF MONITORING WELL 20 feet • DEPTH TO THE BOTTOM OF FILTER SAND THICKNESS & TYPE OF SEAL 4 DIAMETER OF BOREHOLE L1 = FT Monitoring Well Water Level Measurements L2 = 5.0 FT Date Time Water Level* L3 = 15.0 FT L4 = FT Installation Completed Date: Time: ervirenraente fDe1ta �A * Measure Point APPENDIX D LABORATORY ANALYTICAL REPORTS - SOILS cb Curtis & Tompkins, Ltd., Analytical Laboratories, Since 1878 2323 Fifth Street, Berkeley, CA 94710. Phone(510)486-0900 NOV - 7 1994 ANALYTI CAL R -EPORT:: Prepared fort Delta Environmental Consultants, Inc -. 3150 Richards Rd Bellevue WA 98005 Date: 01-NOV-94 Lab Job Number: 118108 Project ID: 7-2518 Location: Federal Way Reviewed by: Reviewed by: .- This package may be reproduced only in its entirety. Berkeley Irvine DEC — 1199" • C Curtis &Tompkins.Ltd. LABORATORY NUMBER: 118108 DATE SAMPLED: 10/14/94 CLIENT: DELTA ENVIRONMENTAL CONSULTANTS DATE RECEIVED: 10/21/94 PROJECT ID: 7-2518 DATE EXTRACTED: 10/26/94 LOCATION: FEDERAL WAY DATE ANALYZED: 10/27,28/94 DATE REPORTED: 10/31/94 DATE REVISED: 11/29/94 Washington Total Petroleum Hydrocarbons - Diesel(WTPH-D) Guidance for Remediation of Releases from Underground Storage Tanks April 1992 LAB ID SAMPLE ID DIESEL REPORTING RANGE LIMIT (mg/Kg) (mg/Kg) 118108-002 SB-4-10 ND 30 118108-006 SB-5-10 ND 30 118108-010 SB-6-10 ND 30 118108-014 SB-7-10 ND 30 118108-017 SB-8-10 ND 30 118108-020 SB-9-10 ND 30 118108-023 SB-10-7.5 100* 30 METHOD BLANK ND 30 ND = Not detected at or above reporting limit; reporting limit applies to all analytes. * Sample chromatogram does not resemble hydrocarbon standard. QA/QC SUMMARY LCS, RECOVERY, % 80 cbCurtis &Tompkins.Ltd. LABORATORY NUMBER: 118108 DATE SAMPLED: 10/14/94 CLIENT: DELTA ENVIRONMENTAL CONSULTANTS DATE RECEIVED: 10/21/94 PROJECT ID: 7-2518 DATE ANALYZED: 10/24/94 LOCATION: FEDERAL WAY DATE REPORTED: 10/31/94 Washington Total Petroleum Hydrocarbons - Gasoline(WTPHG) Guidance for Remediation of Releases from Underground Storage Tanks April 1992 BTXE by EPA 5030/8020 LAB ID SAMPLE ID TVH AS BENZENE TOLUENE ETHYL TOTAL GASOLINE BENZENE XYLENES (mg/Kg) (ug/Kg) (ug/Kg) (ug/Kg) (ug/Kg) 118108-002 SB-4-10 ND(5) ND(100) ND(100) ND(100) ND(100) 118108-006 SB-5-10 ND(5) ND(100) ND(100) ND(100) ND(100) 118108-010 SB-6-10 ND(5) ND(100) ND(100) ND(100) ND(100) 118108-014 SB-7-10 ND(5) ND(100) ND(100) ND(100) ND(100) 118108-020 SB-9-10 ND(5) ND(100) ND(100) ND(100) ND(100) 118108-023 SB-10-7 . 5 ND(5) ND(100) ND(100) ND(100) ND(100) METHOD BLANK ND(5) ND(100) ND(100) ND(100) ND(100) ND = Not detected at or above reporting limit; Deporting limit indicated in parentheses. QA/QC SUMMARY RPD, % 15 RECOVERY, % 73 cbCurtis &Tompkins.Ltd. LABORATORY NUMBER: 118108 DATE SAMPLED: 10/14/94 CLIENT: DELTA ENVIRONMENTAL CONSULTANTS DATE RECEIVED: 10/21/94 PROJECT ID: 7-2518 DATE ANALYZED: 10/25/94 LOCATION: FEDERAL WAY DATE REPORTED: 10/31/94 Washington Total Petroleum Hydrocarbons - Gasoline(WTPHG) Guidance for Remediation of Releases from Underground Storage Tanks April 1992 BTXE by EPA 5030/8020 LAB ID SAMPLE ID TVH AS BENZENE TOLUENE ETHYL TOTAL GASOLINE BENZENE XYLENES (mg/Kg) (ug/Kg) (ug/Kg) (ug/Kg) (ug/Kg) 118108-017 SB-8-10 ND(5) ND(100) ND(100) ND(100) ND(100) METHOD BLANK ND(5) ND(100) ND(100) ND(100) ND(100) ND = Not detected at or above reporting limit; Reporting limit indicated in parentheses. QA/QC SUMMARY RPD, % <1 RECOVERY, % 102 to vvvvvv v •,..1 01 01 01 01 01 01 01 U) �� v. i 10 10 �0 10 10 lD 01 ri N N N N N N N C Curtis &Tompkins.Ltd. H g O O O O O O O v.) 4 ri 4-1 r-1 1--1 ri 4-1 ri 0 ri '0 0 0 0 0 0 0 0 o N N N N N N N Q •>~ vvvvvvd• w -P t- rrrsrt-- H a) aaaaaaao w wwwwwww r w a .c o 0 0 0 0 0 0 H U 43 r�-1 r�i rr-1 4-1 r�-1 rr-i r�-1 O 01 rrl al s s -1 r-1 �4-1 rr-1 r�-I r�-I tr g — 0010100010 •ri •� a-) tr g � •4-1 X In v d' 1n if V In •ri g r-i o •ri tr a,a 0 tr a) S- c a •r-+ 4J 0 14 a o a) Cu s-( a) 4 b1 CL' r-1 `.L a) --- > ►-i N tr 0 ZzZZU Y zZ Z al •r1 '0 RS >1 a) 0 ri a RI v v v v v v 4i g a) 01 01 01 01 01 01 01 CO a > o •ri a) •i ri ri ri ri ri r-1 '0 !~ IA a) }-3 NNNNNNN a) H ri 0 cd ������.., 4-) a Q � H .-IHi r � ri a) U) a) a.J 4i Z d• d• � V' vvv 0 g a) 01 01 01 01 01 01 01 '0 (d H a) —�-5��...... 4-) ll41-1 v. v v' vva' v 4-1 4-1 0 (d rir14-44-i4-iriri 0 0 cd Q �����S Z U) U) 0 000000 0 r1riHr1r1ri r1 11 U NwovNor) 0 0 0 ri ri ri N N Z H 0 0000000 (d H 1 1 1 1 1 1 1 f~ A o000000 a) (d H ri ri ri ri ri ri 0 �, a COCOCOCOCOCOCO o• 3 ri ri ri ri ri ri ri •ri co > N H w (• -4 }-1 I a) (ds '13 +) o H H •• 44 •ri (1) Q 0 Q H co Q z H o • in Z W E+ H H 000000N 4.1 I-3 4 1:4 ¢., r-i ri ri ri r-I H 1 H O U R 1; 1 1 1 1 1 1 0 F-11240 rol (d v LC) 'DNcn0lri 0 (341..1 U) 1 1 1 1 1 1 1 al al Q CQ al Q W v) U) U) U) Cl) U) U) cbCurtis &Tompkins. Ltd. CLIENT: Delta Environmental Consultants, Inc DATE REPORTED: 10/31/94 JOB NUMBER: 118108 BATCH QC REPORT BLANK SPIKE / BLANK SPIKE DUPLICATE Compound Spike BS BSD Units BS % BSD X Average RPD OC Method Analysis Amount Result Result Recovery Recovery Recovery Batch Date Lead 2000 1790 1800 ug/L 90 90 90 1 17190 EPA 7420 10/26/94 cbCurtis &Tompkins.Ltd. CLIENT: Delta Environmental Consultants, Inc DATE REPORTED: 10/31/94 JOB NUMBER: 118108 BATCH QC REPORT PREP BLANK Compound Result Reporting Units QC Method Analysis Limit Batch Date Lead ND 5 mg/Kg 17190 EPA 7420 10/26/94 ND = Not detected at or above reporting limit I I 0 O I . Nr. . d � . } lu i • V .0 m `. E . ^ d 0 E T. _ = .c c 1r a L -0` .0 ' H - O_4O � _ v i...: u ,rz U C I i- j 4. O u v h aC 3 ^ N Y •Y y cim C 0 ��1 o G" O n Z Q --10 0 — I o X < o 0 r6 0 J 1J ,, ' < • ,j ›- '^ < u VI Z E.' I! j� x S- D • � - DuJo 1 1 u n r 5. � � c- O • I Z ^ 0 b - C� Doo x x G . n O - c. .-J Q X t I I I j 0.. ~to I I . c, Cl c ul y 106. U O c ' o 0 _o tr C. ` c. /� (� d•Z > O \ v rJN G Q U • C N tt -<Ii Z p U i-t u I • �. 0 1C2)1 Ct Co Er }< C - i; U _ < I ,, X ro c = v U oIII r�-I r G O O - c C — }= ;� [) U C C N < �� 3 a N w O j n ,_. U x . . . rc H r-i = = O ✓ D N J.-3 a CO o C 0 C U a a) 0 re,,, E o ° c c 0 ,a = 1-› tM (� M 1 rr. o (c' f .0 U �- '� C U 0 to p 0 Q . J Z r w .J (CVI ri p . 4-1O e o • f••• r•1 tf) N Z r c U Q . tv r- I O a) al. I o I , p r• � N D a 2. Z ° 1 • > "Du 0 E �y (� U n flJ -a • I :.•.: y U U L 1 I D �Il ��— I J D v1 Q 0 \.r1 4 J \ L� y Z _U 1 — 7 a Oo , , C' �- lf> N 0 pop s_i c I V O X r H C -.. r� i 1 1 1 v 1 1 U 0 Q L C !J to 'V to LT V m 11 V1 �, \ Z 17 I I O O Z N h • V V >- >- o F e A N E. d V o n N • I �- 1- — O / n r . I r . 0 u \.r rz U v ' 1 j 0. ? u u m 1= D s -. m ,`r 2 e, o C o yy* •C "1�1 X x ? 0 U N r 3 O t 5 .n _ C es; -0 n Z 1 > � --Io - i N 'J --1 Li N r it) c Cr) -J I - v C p X. .�( • � O W o i N 0L^ i r r avn iI Ni .)t H [i ` N r.7.. o nZ � n c". 10 a o / it r. O Q x F- • II I I z- C L� 7, ' w vU oO l� v G .-- j - o Z q, - r V C U - tN Nr ° L.) N C I Z CIU f-s v r C.) - :-.-... o -- _ _ — _ f _ --I— — — <t) _" it 'O 0LU J - rO O H II IIIiI � _c __ IN. iN J C < iy o - = - I fa , a• • N ry J_) rg C<o c 0 ❑ c) o m • o p r 50 ,31 p 1-s U oO O M1-..). ICos .) D ` r{ JT ip L 'O a U p ,J z' c In , Li! f3 L •.! 0 0 U) .1J O N Z C rf L7 - C L'j p V O .^-up1iI rs V = i ' Q I-• G c i t W .y r r •n • ' 1 ❑ n N V\ p L, 't Vi -- z U U 1 1 1 1 1 u u U 1 1 ( O Q ` ` v � ' �l V c/; C c a u N v o v-, In V.) • J11 -I. :� I o 0 0 � c? f ti ma A M�11 a• a. 1 M A iq -aF • q�FfL E t S o O E VJ .- 0 CV I ,p a .- 3 t N _ O 1 z • .) A a u k < llommormil 67 el y v u 01 r. r. O 0 U v 1 R a N s s CI C. ^ ft O QV1 X < - .-,VIOL; n ' > J ^; O O Q — — ~' ' X C c C I Q • Li In } J I I d r- D < - 0 UJ O ,o q 1 I c 1' q _�J EL' enN /� I Z A "CIO '- 0C] O C I GI n t f f • fl V r C Li w ^ 7 i O l7 ' /�"1z�J' a U O C Z • I L f v5 C rli 0 ago — • } O Oi l/ i x J o 1 1 O O U H: G `o p .� U .....'''7 I XC to a U U �� `u .....: o J C D D _ y L;f n toto C a 0 . < - U (n x i, 14 n 1J a y N C O f 0 4 c r �— ! s ` o .a U 0 (� p U G- .J d r3 •,-1 . A -c �- (1) -L.) O Lr C 1 = o D + r-f N v., o f) o p a) — 0) a., i..�. - c Q cam) N 0 i O InD n.. e .z u U — es., It '>. I r. (I)‘10 ' I � Ira it U U L . "V V ZUUV o . o C.) O U C.) (— —01 Ibf — _ c r= 0 U X = + U 0 Z X r. � i t� t U < w cn v, cn .r • r APPENDIX E LABORATORY ANALYTICAL REPORTS - GROUNDWATER Curtis & Tompkins, Ltd., Analytical Laboratories, Since 1878 2323 Fifth Street. Berkeley. CA 94710. Phone(510)486-0900 :•',,...' n:_- i i_--:: ------:+'` : �iy}> _-"'' i�:.:;y<�raa'' -'-- 'gc -----_i_-- - t''f [ -[-['? [- >> '-- - Y- ....... .......::............................................. ..De. '.l.ta >::::>::>::>:;<�::«:<::;::>:::;<;:: >::>:.;>::;:::; --..::Envs.ronmental....Co .....:::::...:::..................................:.�::::::...................::.:.::...:..,:.::.::: .._. ants. ..::Inc::.::::::::>::;:::;:<:<:::>:.»::»::;<::»:<:::>::»::>:<::;:.;:: :;.;>;;;:...;:.::.;::.;;::;.::;;::.:;;.:::.;:.;:.v:.::::.::..:.:::.:.M:::::::.:....::::.::::.E...:1.:.:O.::.Richards4d.................:::::::::.:::::::::..................:::::::::::::._::..:............ 11e. vue Date: -05 O -C T 9 4 PRWMMOR Lab Job N Numbe r: 117837 1 83 7 Project - ID:� MO-94 845 Location: 2510 S.320th Federal Way 4111! i !Illi Reviewed by: afFi.)‘' y: ,:� �/ Reviewed b _ ,1,,.. . , „i 1 I This package may be reproduced only in its entirety. Berkeley Irvine cbCurtis &Tompkins.Ltd. LABORATORY NUMBER: 117837 DATE SAMPLED: 10/04/94 CLIENT: DELTA ENVIRONMENTAL CONSULTANTS DATE RECEIVED: 10/05/94 PROJECT ID: MO-94-845 DATE ANALYZED: 10/06/94 LOCATION: 2510 S. 320th Federal Way DATE REPORTED: 10/07/94 STORE NUMBER: 7-2578 Washington Total Petroleum Hydrocarbons - Gasoline (WTPH-G) Guidance for Remediation of Releases from Underground Storage Tanks April 1992 MTBE & BTXE by EPA 5030/8020 LAB ID SAMPLE ID TVH AS BENZENE TOLUENE ETHYL TOTAL MTBE GASOLINE BENZENE XYLENES (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) 117837-1 94-845-MW-1 6,100 60 84 150 160 ND(2) 117837-3 94-845-MW-3 1,200 17 22 12 64 ND(2) METHOD BLANK ND(50) ND(0.5) ND(0.5) ND(0.5) ND(0.5) ND(2) ND = Not detected at or above reporting limit; Reporting limit indicated in parentheses. QA/QC SUMMARY RPD, % 10 RECOVERY, % 97 cbCurtis&Tompkins.Ltd. LABORATORY NUMBER: 117837 DATE SAMPLED: 10/04/94 CLIENT: DELTA ENVIRONMENTAL CONSULTANTS DATE RECEIVED: 10/05/94 PROJECT ID: MO-94-845 DATE ANALYZED: 10/07/94 LOCATION: 2510 S. 320th Federal Way DATE REPORTED: 10/07/94 STORE NUMBER: 7-2578 Washington Total Petroleum Hydrocarbons - Gasoline (WTPH-G) Guidance for Remediation of Releases from Underground Storage Tanks April 1992 MTBE & BTXE by EPA 5030/8020 LAB ID SAMPLE ID TVH AS BENZENE TOLUENE ETHYL TOTAL MTBE GASOLINE BENZENE XYLENES (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) 117837-2 94-845-MW-2 1,500 570 62 90 180 ND(2) METHOD BLANK ND(50) ND(0.5) ND(0.5) ND(0.5) ND(0.5) ND(2) ND = Not detected at or above reporting limit; Reporting limit indicated in parentheses. QA/QC SUMMARY RPD, % 5 RECOVERY, % 98 CbCurtis &Tompkins.Ltd. LABORATORY NUMBER: 117837 DATE SAMPLED: 10/04/94 CLIENT: DELTA ENVIRONMENTAL CONSULTANTS DATE RECEIVED: 10/05/94 PROJECT ID: MO-94-845 DATE EXTRACTED: 10/05/94 LOCATION: 2510 S. 320th Federal Way DATE ANALYZED: 10/05/94 STORE NUMBER: 7-2578 DATE REPORTED: 10/06/94 Washington Total Petroleum Hydrocarbons-Diesel (WTPH-D) Guidance for Remediation of Releases from Underground Storage Tanks April 1992 LAB ID CLIENT ID DIESEL REPORTING RANGE LIMIT (ug/L) (ug/L) 117837-1 94-845-MW-1 ND 300 117837-2 94-845-MW-2 ND 300 117837-3 94-845-MW-3 ND 300 METHOD BLANK ND 300 ND = Not detected at or above reporting limit. QA/QC SUMMARY: RPD, % 8 RECOVERY, % 82 U) d• d• d• •r 01 01 01 f rn H cad 0 0 o 1/40 C Curtis&Tompkins.Ltd. V) Z 000 o 4 H H H 0 H rd HHH 0 N N N n ,[ d• d• .:1• E� a) NSs o aaa a www w a .[ 01 01 01 4 a ) sCO sCO s CO n oq HHH as 4) g 000 -rI -,1 -P ^ 0 -P •rI ►-a el ch r1 •r-1 $4 g H u•a 0 din) • - g a •r., 4-) -0 0 14 t4 0 a) Oa H 1- s-i a) 4.) ^ a Ha o� ui a) 0 > H N 2:7$ 0 o a - ra Z •� v 43 CO $.4 >I a) 0 H ►-a o a) 01 0101 (13 a > Z v) •a) 4J 00o ate) H r-1 0 cd \ -P a ° o0o 0 U) 0) aJ rid 0 H a) ��� H >, 0(a 0 0 o O U) 3 )) n 00o Z O• H HHH II U cd HNr1 0 l 0 0 0 o z H aa O rd H I I I 4-) W A en rn rr a) cC co co co Zing `� � � � O •a0 HHH )4 CO N •d I r1 > cr • g rnU) a) W I .J 0o (U ▪ 1n 4J H •• N H N n -r-1 nH 4, n HNr1 E-cUHX a Whoa fu1cn HOOE-c ' 0 vd' •C• U a0X V o III al 01 01 cbCurtis&Tompkins.Ltd. CLIENT: Delta Environmental Consultants, Inc DATE REPORTED: 10/06/94 JOB NUMBER: 117837 BATCH QC REPORT BLANK SPIRE / BLANK SPIRE DUPLICATE Compound Spike BS BSD Units BS X BSD % Average RPD QC Method Analysis Amount Result Result Recovery Recovery Recovery Batch Date Lead 30 31.25 30.55 ug/L 104 102 103 2 16789 EPA 7421 10/06/94 cbCurtis &Tompkins.Ltd. CLIENT: Delta Environmental Consultants, Inc DATE REPORTED: 10/06/94 JOB NUMBER: 117837 BATCH QC REPORT PREP BLANK Compound Result Reporting Units QC Method Analysis Limit Batch Date Lead ND 3 ug/L 16789 EPA 7421 10/06/94 ND = Not detected at or above reporting limit • . • • ' /. . > , ii d 4 .c. s_ %. , .. _2-. } `r _ 5 in 1.2...sD4 I ; ' Y w Cr a 2 ..- o c•-.) 5 i AL...v. 1 CO .d . ii ii ..,_,,, , , .r; . tf, , c, . . . = w y y N m 7 In r- f- n . O Y Y et- c ac w Qrx7 7� X a - O e o % 6.�Mos51 a 1 - ei N 0 s m Z Q J • > _m L "Pa X rx rt d El N U ..JJ W N f" w Q Q CO >- J C!) • z 3 To Q 0 Q o wm �'- 7< � . N u' 'r G ›... �' C \3` rh t` o }' CC l0 lf? k = <0 1L N N Z ^ O O` �O N d 0U' m40m a. a S alrf C o0 3 1 � d gt t �� H O .0�D ,c, di o s 0 tL (� > o o � � Utn Q�- a C.) • Q) N N -- �J1 Xss.,.' .. -O Zm � H p = .s mac. �" 0q - x • yo oo � >s 0 i X a a7 = a c) �, X - Q O O 3t ;t d _ y c .- m ' E rd a a N Q a is. a a) •U r- ot U) 7, `� •r-I y 0 . S M U to .g • CT^ •t a, m TA n ` 33 3 0 rd r / • t�- rt= to �o 0 � . c,,,, 34 a) c • LI E o s Fo O 3 .. c v Sa 34 L.).) -x Vco b .. ( .M I ♦♦♦ •.-1 V... I. O w Ts n . a r-1 u) . c-r % V) co V 0 0 D .--. I a) 0 I .X A re) r` Q D — _ O 1. r 1 0 o ! 0 3 3 Q 'Z U U - N 6. ` to = O O .O y y () () C 0 Q_ y - co E V CJ O C m V.) 0 _ 'p •-i -" X L7. Q• r to cr tr CJ in rY cb Curtis & Tompkins, Ltd., Analytical Laboratories, Since 1878 2323 Fifth Street. Berkeley. CA 94710. Phone(510)486-0900 A N :A L Y T. I CAL REPORT Delta Environmental Consu1tants, .Inc Richards,:Rd• • Date: 31-OCT-94 Lab Job Number: 118096 Project ID: 7-2518 Location: Federal Way Reviewed by: 4 Reviewed by: This package may be reproduced only in its entirety. Berkeley Irvine cbCurtis &Tompkins.Ltd. LABORATORY NUMBER: 118096 DATE SAMPLED: 10/19/94 CLIENT: DELTA ENVIRONMENTAL CONSULTANTS DATE RECEIVED: 10/21/94 PROJECT ID: 7-2518 DATE ANALYZED: 10/24/94 LOCATION: FEDERAL WAY DATE REPORTED: 10/24/94 Washington Total Petroleum Hydrocarbons - Gasoline (WTPH-G) Guidance for Remediation of Releases from Underground Storage Tanks April 1992 BTXE by EPA 5030/8020 LAB ID SAMPLE ID TVH AS BENZENE TOLUENE ETHYL TOTAL GASOLINE BENZENE XYLENES (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) 118096-1 94-845 Mu-4 ND(50) ND(0.5) ND(0.5) ND(0.5) ND(0.5) 118096-2 94-845 MW-5 ND(50) ND(0.5) ND(0.5) ND(0.5) ND(0.5) 118096-3 94-845 Mu-6 NO(50) ND(0.5) ND(0.5) ND(0.5) ND(0.5) 118096-4 94-845 Mu-7 ND(50) ND(0.5) ND(0.5) ND(0.5) ND(0.5) METHOD BLANK ND(50) ND(0.5) ND(0.5) ND(0.5) ND(0.5) ND = Not detected at or above reporting limit; Reporting limit indicated in parentheses. QA/QC SUMMARY RPD, % 15 RECOVERY, % 73 cbCurtis &Tompkins. Ltd. LABORATORY NUMBER: 118096 DATE SAMPLED: 10/19/94 CLIENT: DELTA ENVIRONMENTAL CONSULTANTS DATE RECEIVED: 10/21/94 PROJECT ID: 7-2518 DATE EXTRACTED: 10/24/94 LOCATION: FEDERAL WAY DATE ANALYZED: 10/25, 26/94 DATE REPORTED: 10/31/94 Washington Total Petroleum Hydrocarbons-Diesel (WTPH-D) Guidance for Remediation of Releases from Underground Storage Tanks April 1992 LAB ID CLIENT ID DIESEL REPORTING RANGE LIMIT (ug/L) (ug/L) 118096-1 94-845 MW-4 ND 300 118096-2 94-845 MW-5 ND 300 118096-3 94-845 MW-6 ND 300 METHOD BLANK ND 300 ND = Not detected at or above reporting limit. QA/QC SUMMARY: RPD, % 9 RECOVERY, 88 N d' d' 'Kr •,..I of 01 01 U) ..,...,-...., rn • rd N N N CCurtis &Tompkins.Ltd � at rd 0 ..,...,-..., H t~ 000 c•-) a H H H 0 H 't3 H H H 0 N N N O L; d' d' d' El a) r r• o aaa a wWW W x 4 r1 r1 r1 W a) ri r1 r1 4 aM NNb O co r-I HH is 4 :~ 000 •H •,i4.3 • g •rI a el rn r) --I >~ ----- H O •-I CI al tr a) .— --I 4.) 0 Ia o, o a) C) +7 a H a a) 0 > H N tr 0 g a) 0 000 .O U CL -- ZZZ rG •rt 'd al P >+ a) 0 H a g 0GI rn rn a > C: G) a) 4 N N N a) H H U rd -....,...... - r0 a) 0 00o U +.r g H H H a) U) a) 4) p a) t, rnrn (U H a) -..,-..,\ H g rd r-I Hr-I 0 0 (d C] — Z U) 000 0 H H H II U H N en 0 000 Z H 0 o 0 0 rd H I I I 4) 0 .fa rnrnrn a) ra 0 0 0 c >, a � � � > (a H H H -d• co > H H C: tr) rd a W N P 4-1 I (1) 03 el N '0 S-4 4-3 a) 4j H •• G4 H a) Ca •r4 C] H •• LL. 0 v u) ko ZWE-lH r-I Whoa p, tntnLn HOVE-+ a x 0 K0 o 0 o Uwa U) I I I 01 rn 01 cbCurtis &Tompkins. Ltd. CLIENT: Delta Environmental Consultants, Inc DATE REPORTED: 10/31/94 JOB NUMBER: 118096 BATCH QC REPORT BLANK SPIKE / BLANK SPIKE DUPLICATE Compound Spike BS BSD Units BS X BSD X Average RP() DC Method Analysis Amount Result Result Recovery Recovery Recovery Batch Date Lead 30 31.71 24.35 ug/L 106 81 94 26 17233 EPA 7421 10/28/94 cbCurtis &Tompkins.Ltd. CLIENT: Delta Environmental Consultants, Inc DATE REPORTED: 10/31/94 JOB NUMBER: 118096 BATCH QC REPORT PREP BLANK Compound Result Reporting Units QC Method Analysis Limit Batch Date Lead ND 3 ug/L 17233 EPA 7421 10/28/94 ND = Not detected at or above reporting limit 1. 1 `/ p p .,d) J j ,: N M 4 J } } ? A \.. -i i ---,L, 1 , '3 2 ), • � �� � I l_ii N• �' � 5. Too �- C. Cp -o ....4 IN 45 ! il1. 0101 0 U• N v c C u N C — a Z o -In O0 p X C E c CO C = v E L �'' C p nuo xJC N } r I i ' - OlD Ni fJ `o c X '` //Q� x E.. �I L1. ~ C1 4 / O . - OOC co o c liii ! n ap lf% lit Oz N v J G tt O O - _ a G >C ' ' f41 N 3 33 er r e p n J ` A V! < o C 0 U _ ..a �• u Co I co v U �Y uC a ,{ U ^ > = 0 D w Et: .1'4 p • J y a _ � rJ u r. C (/) J O - —p 0 �, .q N J o c.) 3 47 r- I 1 U 11111Di 0▪ - 7-5 I aJ _cU�t °U Q C G W Er) N ti t`-) cam - \ RZA. H Suite 103 Eno in +` y�'�':£ni%'�nl:��►::Se— ,es Kirkiant.WA 98�:�E918 ^.. (206)82a-4996 FAX(206)821•3974 1 Q Avt?s1. :€ •� " "' : W-7624 QCI, Inca " 800 East 600 Universil :.P :: cx Anchorage, A Qk �615 Attention: Mr..Dani$1 A..Casey • Subject Level II Env+ronme� a1:'Site A secs... .-f&: emediation Evaluation Gateway Cent 2510 South 32.-*.'Street~ `: Federal Way, Washington Gentlemen: This letter is written in regards to our . evet f' S2te: sessmei :"a;'? Remediation Evaluation Report concerning the property ::251D Sot ;:3"2t .h Stre.e ..n Federal Way, Washington. We recommend that remedisaon activities.:De performe.c:' s::soon as possible to avoid complications and additional costs incurred during ;; winter conditions, which include extra tonnage of saturated soils, containment ::oz•:runoff, placement of structural fill, and pumping of ponded contaminated water'.I m excavations. We recommend that remediation procedures be performed s s R::a :. • possible to; 1. Exploit the favorable dry summer weather 2. Remediate the subject she while current regulatory guideline cleanup criteria are applicable. We anticipate that Regulatory cleanup guidelines will become more stringent with respect to petroleum hydrocarbon contamination in the future If you have any questions concerning the contents of the report or other aspects of the study, please contact us at your convenience. •.•-: •-••...... . . .., .... ••••••. ,-.-.--. ..... ••• •••.....•••• . .. . , ••:•::::::••••••„----'•••••:-.7.•••••:„.. -•-.) . . „ .._...................................................... ......................4.......z.„.z...•••••••••••••••••:::•:-.1:7-4'. ...:...s..................-.' -z"..z*."*.s:"" . . ......................- ..."":::*"....:::' -:.7.-:::::::::::•:•::::::::* ...........z......-":.'":.-- ..z.*.;:z...:-.1::::.•;;;;:74:::' .......::::":".:z.::: "••••••••••••-:::-.%ft:.••••••••••••2:, ". ........."••• ... ....„••••• ..." ............>.....-.. •••••••-4.-.--41--.7. -.. . •••• "....."...:.... ..74.7.7...ZSZ....:.............7.••••••.:;,..........................•. .....-...- ...:7.7.::-..:.7.-.17.....-....:.................................... ..7..........- ........:7......".:.:::: Respe..... ..... ......................• ...^tfully-6-ubrnitted •:'*••••••••••••••:••••••••:•••:::••- ...... .....4 ..............• 1 •.:•••:::••••::••••Z-•••:*:••:::...• ,................. .z.............4.......z...7.7:••••:":••••••••"-. .4.;;;•4::::::::::::•::;:••••:::*........................... ......z.........74.::::;••••••:::::•••••:::....:::Z.Z.:::::::::...... • RITTEN H OU S E-ZEtli.AN:•*&:;4$S0 ClAT5.:;z1N C. .............••••::•:••::•••:::.......-...-............:z.... -.1:•::••••::...:..... , _ , .. . .. .... .... ......... .. ... ••• •••• ...................... ...........................7...:.,.7........z........::::••:':::: ChariesC. Ca Gc6k Environmentaleologit ........1.::..................................................:.............:::.......-:'•••••••••...1.:............:*1....:-...:..-4.:...:•:".............:.:1.........:••••••::....*'.:1:.................................:.........................:::::.....:......................:•••••••••••••:.....i..........:....::.:.........z.................;::......:-......-:.*:..........1..11:..1....:7................4.-..z...................................................................................:.........................z....... ••••••:•• ...::............................................................................................................................................................................................................................................................................................................................................................................................................................................................... , .. •• ••. ••. „...•• ••• ••••.... ..... .......:::•:•::::::::•••••••7".....;......::::..::::................. Daryl S. Petrarca z • • Senior Project Manager •::::•::.:::::::::-.. •••••••••••••••••••••••••::....... ---::::•••••••••••••::•:.," ... ... ... ........ „... „. ••••.;.•••••..z:. ,.. „..'„.. - ••"••••••••-••••••:................. ..................„..::•••••••••::".::::::::::::" • •••• •••• •••• ••••• - ..:••••••.„;z:••••••:::•:::::::'::::-:::::*'::: ......:"::::::::::::::** ..•••••••........:•.•••z•.•:.::::••••:::„:••••:,........„..:7...... ••••••••••••:•.•••::::,:::-. .............:::„...:::„.:::-.7- •••••••::••••-•::::........,.. 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QCI, Inc. ::M1 W-7624 • ALIguz.st, 1991 ~�• ••~`•• M1•,~\~ �••• M1M1• M1•: �M1• RZA-AGRA • Engineering & Environmental Services f 0 .-� /� R •' 11335 NE 122nd WayRZA-AG: : ;.: ~:::: Suite 100 • ,•• • '• '• '• Kirkland.WA 98034-6918 Engineering&•..0.[:.•00..?npr�i»eritat !ces (206)620-4996 :''-:'. FAX(236)821-3914 19,J) : 9J:1:.•. W-7624 OCI, Inc. 800 East Dimond Blvd.;:;St# .e 3=50 ::: ::::: 600 University, P..O..8o c:396a:::::•:•. Anchorage, A ;:44: 35t5.; F: Attention: Mr. DanieA asey: :: Subject: Level II Envi onmental Site:ASsesrre rZt & Remediation Evaluation Gateway Center 2510 South..3 #t:Str:e$ :; Federal Way, asPlir gto#t :: :::::: Gentlemen: We are pleased to present hereriji file results•::ot::.: ii:.03i ::;itr:•.Site Assessment and Remediation Evaluation at the above referen4d pro terty: A I,.:i tion to proceed with this study was provided by Mr. Daniel:A: :C sey:.o:...,§, Inc..' :;2 .nt for Federal Way Joint Venture. We appreciate this opportunity to be of service to you 'and would be'".ptead to discuss . the contents of this report or other aspects of the study with you at yout: enience. Respectfully submitted, RITTENHOUSE-ZEMAN & ASSOCIATES, INC. ti; ;.� Charles C. Cacek Environmental Geologist ...,... . ...::::::•:"..z.Z:::::--::::::. .7) ,-•• . . .........:.....:•••••••:::::..i.z.:.?..:::::::. :::::::. 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R1TTENHOUSE-ZEMAN & ASSOQIA:rgkigic:::-.. _,.....:-....::,::.•:::••:::••:•• 1400 - 140th Avenue N.Hi:• : ::::- • .::::::::-.. •::::::::.... Bellevue, Washington 98005 July 1991 W-7624 :•:::•• N.N.N • • ..:TABLE OF CONTENTS W-7624 1.0 SUMMARY1 • 2.0 PROJECTANDStT. .DESRPT1ON 3 3.0 RESULTS •• 3 3.1 Geo16.gy-;:•Hydroaeol .;:00:? : 3 •••••••• •••••-..• 3.2 Drinking Water Qaify 4 3.3 Site Hist.p711.p.pcsep :•••::•-•::••••••••:.•:••• 4 3.4 Sources of tontaminatôz . 5 4.0 CONTAMINATION EVAWAmON 5 • 4.1 Analytical Results 6 • -:::***•:::::•••••':••••:*:-• 5.0 CONCLUSIONS AND RECOt.ii.M. DiTipt;1S:::•::::•• 8 . . . . •. • •. •.-•• . . . . . . • .. •.. • • •• •• •• •• . . • 6.0 CLOSURE 12 • Figure 1 - Site and Exploration Map Appendix A- Subsurface Exploration Procedures and Logs Appendix B - Laboratory Testing . . . . • •••••:::••::•••::••:::••::•••::•:•::•:. LE •$L:I E.MVi 3QNMENTAL S;T:E ASSESSMENT AND REMEjiA"f'itikEVALUAT".• h GATEWAY CENTER:::: 2510 SOUTH.3:2RttI STR : FEDERAL:;; Yr WAS1-0NSTON 1.0 SUMMARY Rittenhouse-Zeman::&:'Associates, Inc., (RZA) has performed a Level II Environmental Site Assessment ansi emediati u3#sz r;:::of the subject property located at 2510 South 320th Street :in Federal: ti! 3 l::uJasl ita dri:: The objective of our study was to evaluate and attempt :i9::qua of y s ii..and g.ii ater contamination associated with activities on the subjec? r el, arad : lased::cr ofir analytical results, offer cost-effective remediation alternatives. • A brief summary of the results: : ur sz Jd "is include �� rt �. o Three borings completed on the subject property and selected :::g r3ctr ov titer 'la;s p s were submitted for analytical testing, o Soil samples B-2,S-1 and B-3,S-2 extiib0Totat 'Petroleum Hydrocarbon (TPH) concentrations of 78 parts per million (ppm) '*and 2G:::ppm which are below Model Toxics Control Act (MTCA) regulatory guicfefizi479f 100 ppm for TPH as gasoline in soils. Sample B-2,S-1 exhibited detectable concer ,c.i :::be44f. r.,toluene ethylbenzene and xylenes (BTEX) w�icl`i::::are :: itiw MTCk:.Ei?ethod A regulatory guidelines for these compounds :Sample B-3,S-2 dic ;riot exhibit detectable concentrations of BTEX compounds. Sample B-1,S-4 did not exhibit detectable concentrations of TPH or BTEX. Soil sample B-1,S-3 exhibited a TPH concentration of 600 ppm and a benzene concentration of 2.2 ppm, which are in excess of MTCA Method A regulatory guidelines of 100 ppm for TPH and 0.5 ppm and for benzene, respectively. Federal yOiSt...:46.ii0.1.0:: e W-7624 Page 2 • al exhibited low-level concentrations of other BTEX compounds, .1)* iii:.;:::ihese exhibited low-level concentrations are below regulatory:§00ali:.4;.-§.;#§!?:yalues for these compounds. Sample -3$1 did r.j00.zibit detectable concentrations of halogenated vôtrles ar):0:::::ffW::•.:;9.1ii0:.'samples exhibited lead concentrations ranging from nor. :***0.6.**$6f0:::::4.:9 ppm, which are below the MTCA Method A regulatc44,iideline'bf 250 ppm for lead in soil; o Upon anysis, watar.::::.:$ 001$ :::.Y.W-1,S-1 and MW-3,S-1 exhited TPH concentrations pf.....4:ipot.. 07c :.;:4::00Tr), which are in excess of the MTCA Method A rlei.4a.. ..4(4@line of pçrn for TPH in groundwater. Water • sample MVi,;g1::.8idifg.it]::*ibki.11.0.edtable concentrations of TPH. Water samples MW-i,S-1 and .f4';? :,.2 $... .•:?4ibited BTEX concentrations in excess of the MTCA Method regUaty vas. Water sample MW-1,S-1 exhibited a lead cp.**ag&iOf 6 ppp:i:i;?*.tii.4..is in excess of the MTCA Method A regulator4.citiline of 5 ppb r eat i groundwater. Samples MW-2,S-1 and MW-3,S-1 did ot .•;(k.rt::.d'ete:C§*:.concentrations of lead. Sample MW-3,S-1 did c8.6...6. ::::ations of halogenated volatiles or PCB's; o Based on analytical results of soil and groundwater arrples, a program of soils and groundwater remediation may be deemed ne:d.'4.- 61.;by regulatory agency personnel. Such a program could include over-.:0 ;:- .ic:)n of soils in the gasoline underground storage tanks (USTs),..:Rt.0315.*.tio.1 .:6:,:ld holding tank locations, followed by off-site hauling19:.§ 4ii.f.#i:-:itiOt facility. Additionally, a follow-up study may be of**.o.: .f...j& iary and possibly off-site groundwater conditidi*kee' ection 5.0); This summary is presented for introductory purposes only and should be used in conjunction with the full text of this report. The project description, site conditions, and results of our assessment are presented in the text of this report. The field studies for this assessment were completed on 31 May and 5, 11 and 18 June 1991. Federal Way i0irtt wef-. W-7624 19g8t:: Page 3 s` i rt has be$r prepared for the.exclusive use of Federal Way Joint Venture and the . c;::. or::specific application to this property, in accordance with generally accepteEl ei onmental assssmm nt practices. No other warranty, express or implied, is made. In the event.tt:der2e any changes on the existing site or nearby properties, the conclusiQns::ar d::rgcoi7 r fiend ti rZs contained in this report should be reviewed by our 2.0 PROJECT AND,SITE DESC#W P'IiION The purpose 'of this: L vel II ..Study and Preliminary Remediation Evaluation was to evaluate possible art=sate contamir. ; ar3:st:Gateway Center at 2510 South 320th Street in Federal Way, Washington:•::: ;:::::pserl::::: ::::analytical results, offer, cost-effective remediation alternatives i 0. stogy::of work.. r::this study consisted of a review of previous work conducted:i}t tl'ie. e : field eilpt Lion and analytical testing of soils and groundwater samples. Results of:46. j.0iii testing were compared with Model Toxics Control Act (MTCA) Method A regy*.40. .iiip guidelines. • The subject site is located at•••'2Sb.''South.320t.4...1.44.:::ir :Federal Way, Washington (Section 9, T21N, R4E). The site historicalty.ftas:# een uttiii.e4 ss a service station. The site is currently unoccupied and pra: xistirr :obi--sib::5truCii: ::rave been razed. The paved driveway and parking areas . .:footings ir?r tt e buitdi60 :find pump island are present, as well as asphalt patched areas in the vipini :of the:product lines and former gasoline tank field. The property is a roughly'..Square-sha :parcel, occupying • approximately 1.6 acres. Approximately 80 percent of the prope"rt :::is #*ved with both asphalt and concrete, with planters along t:�e western and southern::per ery. To the east, the property is bound by Gateway Cei ter Boulevard and::icp. ::: .: #a. by 320th Street. The property is bound to the north and East by urri5# ed _pi'ad;~t :property. 3.0 RESULTS OF EVALUATION • 3.1 Geology, Hydrogeology, and Soils The geology of the subject site is characterized by glacially derived sediments. These sediments were deposited during the Vashon Stade of the Fraser Glaciation which ended about 13,500 years ago. The advance of the Vashon Glacier deepened and widened north-south trending valleys. Thick bodies of sand, gravel, and till were deposited over the area, followed by a period of alluvial valley filling, localized peat • Federal Waj!:: :r;t `er:: W-7624 •" •"� " •"• • '`•`' '• '• '••19 Page 4 Jutji:1P3 :: cz ps tion,..mirior'erosion,• and soil development. Surficial geological maps show glacial till ► En the.drift plain in the feral subject area. • Explorations performed by:RZ a :x ie site in May 1991, disclosed asphalt or fill gravels overlying 71/2,to ':1:4:a/, .::feefi of si ;::es'!dy fill soils overlying very hard sandy silt (glacial till) extend;',.*:the f ll.:depth expl0 e ::h :all borings (up to 18 feet). • Groundwater was encountered:in atf our explorations at depths ranging from 41/2 to 5'/2 feet. Based on sur eyu performed by RZA, the groundwater gradient at the site trends generally to the scti.?+.6est (See Figure:2 _:: 'e:,anticipate that near surface groundwater depths and conditions will 3.2 Drinking Water Qua3 ty:::::•:'. Drinking water supplies for the subject:pa{.4..: td adjacent areas are obtained from the Federal Way Water District, which iy ti.iria::is:de.riiied from Io al municipal wells throughout the area. The closest wells.. 4*..4ijbject parcej:::are::ir ated at the intersections of Military Road and South 295tri.::S.reet .and at..32 ::8i e a c. 25th Avenue Southwest. Both of these wells are greater than At least two private water wells are located to the east .}:esid:wi ii e ©ne-mil :; cw :: ..of the subject parcel. These wells, however, are on the or: 3site side:o *oraina e d ode from and are not tributary to the subject parcel. • 3.3 Site History/Past Activities The history of the site was reviewed utilizir;q governmental zoning:and: pe.mit records, aerial photographs, and various anecdotal .iformation sources;::;::ita#oi t e ion on the subject area also came from personal interviews. Most of.th ::p50pktneri wed worked for various governmental agencies. We conducted.oi ::inter 4Ews'with two;•oh,� tiyes: 1) to identify past or present potentially contaminating-i ' rides or situations kale sUbject site; 2) to screen or evaluate the quality of the information obtained by inquiring as to the person's knowledge of the subject site. Many of the people we interviewed relied on their personal knowledge of their organization's and their colleague's activities, and did not search the organization's files for the information they reported to us. Additional anecdotal information on the subject site and surrounding area was provided by local • • Federal vay:far::`:z W-7624 Page 5 p of :::'sr�dividu3!5::: vho::Piave knowledge of the subject area through past or current b;� ess r resider till activities;:•::: According to anecdotai :an.. .4 : is:§hoto information we were able to obtain, prior to 1969, the props ::: as nocc{:'pze .. In late 1969, a gasoline service station was construct ; zf :::: :by Hui bie:::v,l/Exxon. The station consisted of a service building/garz s with:::: t aii :P yd{:3i iM:::::hoists, .two pump islands with a canopy. Underground storage tanks`t- crmerly existed onsite include a 6,000 gallon unleaded gasoline tank, an 8OQgallon..premium gasoline tank, a 10,000 gallon regular gasoline tank, 500 gallon v a to oil and hea'bng J t r and a 2,000 gallon holding tank. The station operated until:'1985, at::L nic? :tifr?e:the s ?on was abondaned. • 3.4 Encountered and terttatb:n=$ire Soutcee•of Contaminants As previously mentionea, the subject::pcoperty. was operated as a gasoline service station from the early 1970,s to 1985, 3t:: t lnki:time the son was abandoned. Based on a letter from Exxon, U.S.A::: tired :1 ::: ctober 1QB.S;: t :r::underground storage tanks (presumably the gasoline tanks;:: i.d..product.l rie : rer&rz`::!;:.ed in 1985. Additionally, a letter dated 26 September 1968 from Modern Se vef:Coast : ::on Company stated that 500 gallon waste oil and fuel tanks:: re ii.0 ved on:::1.3 Ji7rie::"! :s8. In both cases, the letters stated that no evidence of leaK.a ''or soil.:c:grit:acnatiQn:4= :apparent at the time of there removal. However, no confirmatory analytical:testing Vas pe:formed on soils or groundwater at the time of the tank remcvals. • Another potential source of contaminants cnsite may include the I rIc n lifts and a former 2,000 gallon holding tank located to `he northwest of.the:fc rf ie :: Tiding site. Based on the site map provided to us, plans scggested:tb ::the t of ii Tar k:would be cleaned and backfilled in place. However, no in# {i' fi 'i e' were able t ::;obtain indicated that this action had taken place. 4.0 CONTAMINATION EVALUATION Based on past usage of the subject property as a gasoline service station and the lack of analytical testing of soils at the time of removal of the USTs and product lines, it was deemed prudent to evaluate soil and groundwater conditions at the subject site. To assess the soil and groundwater conditions in the vicinity of the former underground Federal W-7624 Page 6 .:::••::::•::::•::::.•:• tragG tanks and product • •::::•::::•::::•.:::• ,..:.:::::::••.::••.:::••• lines, three soil borings with installed monitoring wells were and sampling procedures are described in Appendix A. . . . •.. ••. ••. •.. ••. . . . . . . . One of the boric:3&::*4**40.04. ti.CFye the former UST gasoline tank field, one above the former::pro. .t04:iiii. .0k.P.Fitt....O.::15.. ...pump island, and one atop the former waste oil tank (Figure Site Selected soil samples from borings B-1 and B-2 were analyzed...f6.t.:.::::!1:.6*::P.00eUrn Hydrocarbons (TPH) by EPA Method 8015 Modified and benze*giluene;..eihylbenzene, and xylenes (BTEX) by EPA Method 8020 and total lead. SO:4itiples collecepljr.95.71:4d0pg B-3, advanced atop the former waste oil tank were analyzed for TPft by EPA Md 418 1, halogenated volatiles by EPA Method 8010, PCB's by..E-P .POF. :0: 30.80 ara lead Water samples collected from the respective monitoriii.d4iti.i.04:1.11ed fo ib same analytes. . . . . . . . 4.1 Analytical Results • Soil samples colected (B-3,S-2) exhibited TPH concentrations ranging from 21 Th ppm, respetwe of which are below the MTCA Method A regulatory guideline gf.....1.p4p•iti .f.0•?..6ai4*.7.?...soils. Sample B-2,S-1, collected from boring B-2, exhibite .:...6.§!:0P:i. PCpntraii .i7. 0.17 ppm of benzene, toluene of 0.28 ppm, ethylbenzene a!! of which are below MTCA Method A regulatory guidelines for theSe compourics Soil sample B-1,S-3 exhibited a TPH concentration of 600 ppm and a :benzene co6P.Otion of 2.2 ppm, which are in excess of MTCA Method A -egulatory guidelines of lOG pp for TPH and 0.5 ppm for benzene, respectively. Soil samples B-1,S-3, B-2,S-1, thiet0*-75:2 exhibited lead concentrations of 6.8 ppm 9.9 ppm and 4'.5 ppm, respectiyels.i. itii*:.§it.p.:below the MTCA Method A regulatory guideline of 250 ppi i for leadi.r:?:*§iiOt.5. . .1?.*k0;•.:1,S-4 did not exhibit detectable concentrations of TPH, not exhibit detectable concentrations of halogenated vpiiii40 :8.t.:*I'CB's (see • Federal W�t:::.c}t t: Z ' ` ••• • •••• '•• •`:::: Page 7 • 19Juy: i 91 :: •::: -: : .. •`.. • •�,�• ••;� Table I Analytical Results Soils Boring Sample Depth.;::::::i'.:i,ppri7i„ Benzene (ppm) Toluene(ppm)Ethyl- Xylenes (feet) benzene (ppm) .. B-1,S-3 ;:1:?; :ii:: : ::::: ::::: : ::: :2.2 0.92 4.6 12 B-1,S-4 :i7;g:::::.: _,:. :::;z :•p... ::<0.05 <0.05 <0.05 <0.05 2: B-2,S-1 ?�: .:::::•.. •::: • ;:i::i:: 0.17 0.28 1.3 16 B-3,S-2 5.0 2:2: ``: `: :.. NT NT NT NT MTCA Cleanup 100/200` 0.5 40 30 20 Criteria ND-indicates analytical testing..d 3:i►at:e 11 dGt9crabl::ORncentrations of compounds tested for NT-indicates compounds.rz t:t .edfor:: : •::: ::::: :: ::.* . " ••0 f• oline it :soi s'i'•f:00 ppm,for diesel and heavier petroleum -MTCA Method A CleaRtip:�4id�i�ct�s:.�:� s ,;• hydrocarbons; 200 ppm. Notes: Samples B-1,S-3, B-2,S-1 and 3-3;$-.hi S t 'xotal lead concentrations of 6.8 ppm, 9.9 ppm, and 4.5 ppm, respectively. Sample B-1.5444:tot:pxl'1tbit detectable:concentrations of lead. Sample B-2,S-3 was analyzed for halogenat€d; '.:EPA Method.•8b}t?:aI d PCB's by EPA Method 8080. These samples did not exhibit dete44. .. `c iricentrations of.c.i e;i ti.volatile compounds or PCB's. Groundwater samples collected troi i rionai Ili§:: `elts.,MW.. fa e ve the former gasoline tank field) and MW-3 (above the form r:waste oit to t :exhitii.te f:"i:3PH con;entrations of 21 ppm and 7.4 ppm, which are in excess of the MTGA::Method..A regulatory guideline of 1 ppm for TPH in groundwater. a groundwater sample collected- r©m: monitoring well MW-2 (adjacent to the pump island) did not exhibit detectable ce#ii✓el:itrtions of TPH. Additionally, samples MW-1,S-1 and MW-2,S-1 exhibited BTDC conCentr tins in excess of MTCA Method A regulatory guidelines. t amples MW-2,S-1:: dMW-3$-1 did not exhibit detectable concentrations of lead. Samples:•::t 4:' S3::::•e hib`f •• a lead concentration of 6 ppb, which is in excess of the MT• .1. slat ry guidelin S:p e: rf pb for lead in groundwater. Sample MW-3,S-1 did not 'i iedetectable conc8iizr'ations of halogenated volatiles or PCB's (See Table 2). Federal V►rz 3 r t Vo W-7624 19 Page 8 Tab►2.:2:7 Analytical Results-Groundwater • Bang Sample Date ot:: :: ::::: ': ::::: Benzene Toluene Ethyl Xylenes fort (crib) Benzene foobl (orb) � . . MW-1,S-1 260 Tao :::18I:::;:::::::::::::~;:: 2s:::::::::::::::::; 86 22 MW-2.S-1 ::3: gt: : :` " :: •. <1:D :: ::::::: 570 57 48 140 MW-3,S-1 ::: : f' :.7.4: :::: :: '":: NT NT NT • MTCA Cleanup :t,{�::::' :: :::::: 5 • 40 30 20 Criteria ND-indicates analy; 1' esting did not exhibit detectable concentrations of compounds tested for NT-indicates compbz ds not tested Notes: Samples MW-1.,S-1 ppb. Samples MW-2,S-1 and MW-3,S-1 did not exhibit detectable ceritr 'bons t:}sad. Sartp#e:1J W-3,S-1 did not exhibit detectable concentrations halogenateC:Y'o a fes'or:PCB's,:•orgar+1os:by EPA Method 8240. 5.0 CONCLUSIONS AND RECO.1.001A tiONS Based on analytical results B-1,S-3 exhibited TPH and BTEX concentrations in excess of MTCA::i✓egiilaoi'j+' a:3 dines and water samples collected from monitoring wells MW-1,:.:+A ?-:2::a,*►rt::?JIW-3::e4lned TPH and/or BTEX concentrations in excess of regulate* tt#e0in4. :Based or 4r .* ation we were able to obtain for this study, it is our belief` § °t•'the observed:•:.on-site::ear Laminated soils and ground water may have resulted from leakage :of or site CJST.s..::and product lines asssociated with the former gasoline service station. The lateral ¢r :yertical extent of • contaminant impacts on or off the site have not been fully character} ed:.a .this point and to do so will require additional subsurface st:!dies. Based on analytical results we obtained from our study and::A r;: r ousrtedge o,=:3ocal soils conditions, we anticipate that on-site contaminati :.:. :sQits: a•'probab :a40.411y and horizontally limited. The lateral extent of contamini*i ipacts on ground ater'is not known. The project site is underlain at depths ranging from 7 to 14 feet by relatively impervious glacial till, which, based on visual observations and analytical testing of sc.iis was free of contamination. We recommend as a possible remediation alternative that the soils in the vicinity of the pre-existing gasoline tank field, product lines pump islands, waste oil and heating oil • Federal W. : ��40.6.t?,r' W-7624 '• �'•� Page 9 19 J3y:i :: :: ::: tz . ..:pi :.?xca 'ated teFiioving the apparent contaminant source impacting groundwater : oas :: AdditionaRy:;we propose that an excavation be performed in the vica'Ni!y.Orf.4.:2'O00 gallon.... .0.0 i :tank to assess the potential contamination in this area. Basco on the results::o ::atilt:: r;rt?i�:u?ary explorations, we anticipate that possibly 300 cubic yards of..t i i tri i Bted..so l ii sy require removal, followed by either disposal or on- site treatment Due to the elevate :6&..rit{atiQRs•of TPH and/or BTEX detected in groundwater samples MW-1,S to::::::::MW-2-S-1, and MW-3,S-1, additional characterization of groundwater conditions may be neceSslto.teo: r soil remediation has taken place. The Washington State .Oepartmef?t§o :Eci to : a }ogy) Regulations for Underground Storage Tanks require that:ih e:iiia?uts::of•contar u a i groundwater should be quantified. • al for services for additional site • At your request, 1NQ:::daR pcovat ::::a Papt?$ characterization. • Listed below is a brief summa'y::pf:(aid.disposal and::ori s 4.treatment options available in the western Washington are :::::These options:::ot ; ?: ::i i..Lh petroleum hydrocarbon contaminated soils which are not classified::as:da gilrous:o:' rremely hazardous waste under WAC 173-303. Included is an estimated cost per yard for treatment or disposal bars; on our latest:axperieo :` ese costs may vary with the amount of soil and periodic price changes:at:the:dump:sites..-•-: Olympic View Landfill, Kitsap County, Washington Privately owned and operated solid waste fa^ility in Kitsap County. Wilts a pt petroleum hydrocarbon contaminated soil upon review test results and::: i°ova#parametrix (Rich Mullen 455-2550) a consultant retained t/ the and dumping of soil must be coordinated through•:fair: E4 c c kf:::(674-233f3 :::: r5ference given to a number of local excavation and hauling coil#rti tors. Estimated disposal cost including transportation approximately $70 per cubic yard. Prices currently under review and possible revision. Woodworth Asphalt Company, Tacoma, Washington Accepts soil of the proper gradation for use as aggregate in the production of hot-mix asphalt. Has accepted soil in the past, current status of petroleum hydrocarbon soil • Federal e W-7624 i9Ji Page 10 ••••••••••••••::•••::.• t- tmet uncertain Status • of operations can be updated through Mr. Mike Tolkuehn Esi .ated cost rjol including transportation about $80 per "•••:::.:•-•......:•••:::.•:::.•:::.•:- cuc.icyard • . . . . . •. ..••..••..•........... Fife Sand and:-0;.4 .6. Private aerti xid ardarm1ng oprtn which has accepted petroleum hydrocarbon contaminate sail in Ctirr and operation of the facility uncertain. Has had trouble in tt*.i*Sii*7:40.g:Oii:g of treated soil since closure of Newcastle Landfill • near Bellevue; Wa.. .0•Ogn Current status can be obtained from Mr. Mike Kelly (922- 7710) the owner/akii6ted. Estirs104?4:Ops :post including transportation about $50 . . . . . per cubic yard. Shotwell Gravel, PortA;.. .§0.6i,*.4041.9tOA::§ i:. Has been given a temporary perm by Clarn..County to destructively treat gasoline contaminated soils. Will typesw.t .gasoline contamination less than 30,000 ppm. Status of o-?. ...7.§i§r7:i0: e•I::;1•.be obtair:10.0 . ..tMike Davidson (457-1417). Estimated disposal cost ....:::••:::••:::-•:::-•:::.•:.:.•::.••••• .•::::•::::•::::•::::•:.. On-Site Treatment Options Various on-site treatment options are•: -:14ii•6ble aii:Ii•-•.§.4 .e.:.bedri....*,-...f;:.successfully to treat petroleum hydrocarbon contaminated soil. Dispoif::.the soll'bncit. has been treated has been a concern in the past Currently Ecology is pustii.rj0: ••*::.oet these soils accepted as 'clean" at the various demolition debris and solid waste .44.ies in the area which greatly reduces their final disposal c•Dst. Disposal can bea...::461i.shed on-site once the soils have been treated if they can b., used in backfilliog*Vi'.0.0. : perations. On-site treatment options require the space ;o perforr. 7:f6. ...1:-.4.t*i ..:*.c;ithe time (anywhere from 4 months to 2 years) to comple.t§:i*•0•*ii. -). On-site ttment •:••••:••••:••••::•••:::••:::•••• • alternatives listed below do not include costs for Above Ground Venting and Aeration (Volatile Compounds) cost approximately S35/yd3; Above Ground Bioremediation cost approximately S60/yd3 Cold Asphalt Emulsion - cost approximately $40/yd3 In-situ Venting (Volatile Compounds) -varies from site to site. Federal V1f�' e W-7624 19 •' : Page 11 • • baz on ai r: �isCussions with.t e client, offsite hauling to a thermal treatment facility is thb altsrri0. We estimate 300 yards of materials on-site will require exca.ation and treats iiri t::: f eu se:ar recycling of petroleum hydrocarbon contaminated soils is the treait erit:::i sthad pret .§ .,by The Department of Ecology (Ecology). We recommer1;t: ei atio ?:oGedur :5e::performed during the dryer summer months to avoid problar: s:.'and .:addi;zc r: a;::casi5:::associated with saturated soils, containment of runoff, placement pumping of ponded contaminated water from excavations. We .recommend ttlat remediation procedures be performed as soon as possible to; 1. Exploit the favora d y:s ? r.weatk a ::.. 2. Remediate the s.i t.:site:wr ire;:current:re julatory guideline cleanup criteria are applicable. We anticipate that Regufatot r:cteahip guidelines will become more stringent with respect to petroleum hydrocarbons:•:** nation in t e future We estimate we could comple:b: tv:.aoove ouThr d:i.;45 _ i rk for $47,130, assuming 300 cubic yards of contaminated soil wo i;t : :z`errOVed=at;; : ;aced with imported fill. Actual costs may vary sionificant1. 4.00.i. contaminated soils removed. The scope of work and of: at:: voposed services is included in the summary below: PROPOSED BUDGET Subcontractor Expenses Trackhoe and Brckhoe: (3 days and move expense) p0 off• Confirmatory analysis of soils from • excavation perimeter (14 TPH, 14 BTEX, 14 Lead) 52,400.00 Analytical testing of stockpiled soils (6 TPH, 6 BTEX, 6 Lead) 5900.00 Import Fill (300 yards, placed and compacted) 54,500.00 Hauling treated soils to Shotweil Gravel and Company, Port Angeles WA (assuming 300 cubic • Federal e W-7624 19J59 Page 12 • •• •.. •.. •... = 1.5 tons) $8,100.00 Grave and • Cot,Icar ty,::14•6:Aridel es WA (a ...4.:400.6:.;,190 cubic yard!. DI soils @$43/!C9:4::.; 3 :.. 4‘2:•• $19,350.00 Hauling asphalt and crcre debis and pin ••••••:•-•,.•••••:•:: materials off•gii.0:(A4.49iPingStcz,cldoads.4et.: ?-it;zad) $480 •••• ••••••••••••-- Subcontractoi•-iW • $40,950 RZA Field Services Observation of Over-F-44i i-qn and backfill (5 days)$1,800.00 Field Materials and Supes (Organic VapOr Meter sample bottles, visqueen plastic) S500.00 Analyses and Report •••••:••••:••••::•-•::•-•::•-•::••:::•••••••• $1,800.00 RZA Total •.. ••. •.. ••. ••. ••• •.. $5,400.00 • TOTAL COST $47,130.00 The above proposed budget does not of::.00,:i7.:4).00 gallon holding tank, if it in fact exists, repaving the site, oz::::ii**Ii.i...0.00:4*.i:11.....sitd::0*41erization. If standing water is encountered within the exca:..4ifb'ns, purnptr nd t4.-§# may be required at additional cost. All services would be perforrn.6:40:::::.a tirrii•and::::rpaterials basis in accordance with our current Schedule of Charges and Generaf.::..4i;;.i*ions, a copy of which is attached. Should we encounter difficult or unanticipated-.4;0*Is, we would inform you as soon as possible and no woA would be performed 00Y:r4i.!0::. .-le approved scope of work without your prior authorizatior. • If this proposed scope of work and cost estimate '.5. *00.006.-Siou, pl *.:.§.FOyide us with a written notice to proceed. • We pride ourselves on our ability to provide responsive, cost effective services. Cur efforts on this project would be directed towards maintaining a high level of responsiveness by keeping you informed of our progress and schedule during the course of the project and to accomplishing a cost effective study specifically tailored to the conditions at the project site. ..:••• -• Federal e W-7624 19J Page 13 . . • The in this repor s based on the explorations and laboratory analyses accomplished for th stLxdy The...*:!clusions presented are professional opinions and reflect our int:e.!.0.1**...0f:••0..ie ait§§.;:oktest results and geophysical data, as well as our past expeif0*:..qf.ti:•:S3:t4.iiig:#roifi ?c.-;i..t)d observations made during the field studies. The 10*§t.*:-0:::.1.4 .40brations.and the analytical testing scope were completed within t*Oiard prgposal constraints to yield the information used to formulate our cor .§—ris. We recommend the conclusions and recommendations presented in this r:600.i.be submig.4.1.ci: •p.R1,,zity-4.pr their review and comment. We appreciate having:::il*:** pr*.e.•;:::*s preliminary information. We are available for performing iy additiot studies rcn may be necessary. If you have any questions concerning the. contenti.:io ftii0000:We would be pleased to discuss them with you at your convenience. • Respectfully submitted, RITTENHOUSE-ZEMAN &ASSOC.l $, NC • • Charles C. Cacek Environmental Geologist • Daryl S. Petrarca Environmental Site Assessments Manager . • • ND W 3 U 0_ MONITORING WELL NUMBER AND LOCATION I Z INFERRED GROUNDWATER SURFACE ELEVATION 0 CONTOUR IN FEET INFERRED DIRECTION OF GROUNDWATER • MIGRATION I FORMER WASTE 7"‘ OIL TANK B-3/ 777 MW-3 r L\ J FORMER r_ SERVICE STATION/ -oRMER BUILDIt/G • f 'Y sTE ---"wgilLN OIL TANK 0 20 40 2000 GALLON SCALE IN FEET HOLDING TANK r- L_J GATEWAY CENTER • FEDERAL WAY. WASHINGTON PLANTER E ELEVATION CONTOUR MAP FOR 18 JUNE 1991 • GATEWA FIGURE 1 • RZA•AGRA 11335 NE 122nd WY SUITE 1 NJ KIRKLAND,WA 98034-6918 • • • . ...... - ,r• .......... . ........... • 7:7_ • - • •• ...:•:: • " .•••••••••::••••:::•••••::".•::".: ... .. • __ .••::.. ..•••••••• • . '..... ••:••••••"••••••••:::::•:::•::::••:::••• •.... ... • ... .• • •• ••. • •••::•••••::••••:::• -- - - .... . . • ..... SUBSURFAc`t....EXPtORATION NIOCEDURES AND LOGS ..••••• •. -. ........ ... • - ••:::•••::•••• ••••••••••••••••••"•:'- . ... '.•-•.••••'••••••••••••••••"-•'.-▪- ••••••••.::::•••::•••::••••:•- ... •••••••:•••••:•••:::•••::••• •. •• ••• ••• ............•••• ...•••••••••••...... •••••••••••••••::::•:::-.. •:::.::•••• ..:::•••::•-::••••• ••••.:;•.:•• • •-•• ••:::•:::•••••••••z•••••:-.• -::••••••••••::•••:- APPENDIX A W-7624 Subsurface Exploration :: The field exploratio6:.0ogratzi::60 c ed for this study consisted of advancing a series of three hollow-stern ::;a ge :b rings ti e;atled with monitoring wells. The approximate locations are:il#;sirated ort::fthsr::Stte::aridEloration Plan, Figure 1. These locations were obtained in the.field by;taping arii : 2cing."from existing features. The borings were d613e4f:bn 31 May199.1..by.a.local exploration drilling company under subcontract to our firm.. Three bars:*1.**.uar ced utilizing a 4-inch inside diameter hollow stem auger with a truck: i QUnted*"drill iiq : # . ring the drilling process, samples were generally obtained:: :S: t:deat The borings were continuously observed and logged by an:experience f: iron r r tal geologist from our firm. Characterization of Soils • Disturbed samples were obtain&t sprig' the Stan and:::.. .ta ion Test procedure as described in ASTM:D 1586. This test :consists of driving a standard 2-inch outside diameter split ba re3..sa4ier:a::distance::ar:..:inches into the soil with a 140 pound hammer falling a distafice:tf*30 ii c s ::The r i nr:of blows for each 6-inch interval is recorded. The number of blows required to sampler the final 12 inches is considered the Standard Penetration Resistance ("N") or bier:Count. If a total of 50 blows is recorded within a 6 inch interval, the blow count is record0das;:50 blow for the actual number of inches of penetration. The blow count, or "N" v2� a ;: ovides a measure of the relative density of granular soils or the relative density:ofi:poh0 -..soil. Soil Sampling Procedures The soil samples were recovered at each interval using pto 3ures designed to m inimize the risk of cross contamination. Prior to each boring; the drilling equipment and sampling tools were cleaned. Between each sampling attempt, the sampling tools were scrubbed with a stiff brush and a detergent solution consisting of Alconox and warm water, and then rinsed with a potable water and liberal quantities of deionized water. The samples were classified in the field and immediately transferred to laboratory-treated • . _ ::::::::::::::::::::::::::::::::::::::• tightly .1.i3 with a teflon-lined threaded cap. Samples were stored and •-::•••••••••:::. ii:.460i*pd in a .cN1144 .6 chest throughout the field program. Selected soil samples to the chemical testing laboratory in accordance with RZA ••::::•::.. chain- -Quo Orb;Ced u r e •••••::::•:::•::•••• • The boring logs preseried ip this appendix are based on the drilling action, visual inspection of..q7ii*60ii0:0*, Iii0*§Fy results, and field logs. The various types of soils are ind1.6;44::::iii W64...i4 :i.• ••:01-.it*Where the soils or characteristics of the soils changed. It should blii*.0:0::i0.0.**§.6:6 changes may have been gradual, and if the changed occurred bzwen sample intervals, they were interpreted. Subsurface water conditions were eva10.0 by obseryirg....glgzstyre condition of the samples, the free water on the sampl6d rods :oiri: ?*.f..0**0ii4::.monitoring wells in the borings. Groundwater levels are inplicif0:on ft.i.0'1.5.16rii6•;i:*;...where appropriate, by the water symbol. -::::••• Field Analysis of Soil Conditions Each soil sample was screened :f§ . .....0: 6;S:ence of...y00§...:.organic compounds, to facilitate selecting an appropriati §iii:: i-nple to subnit iemical analysis. This involved placing approximately 4 qriceso.f:*0.0.: 611C11;(00 :ipto a zip-lock plastic bag and allowing the sample to volatiliF..4 :*4i§0440pce 64i* : was performed on each sample utilizing an organic vapor **::(bVt4i§:Opped With a O 2 eV lamp. The highest value displayed by the instrument was recorded or ea6fi-iarriple. This value indicates the total concentration, in arbitrary units, of iiolatilized -00.it.#4.:..compounds having ionization potentials less than 10.2 eV. This class of ccibj0.0..iiis includes numerous constituents of petroleum hydrocarbons. However, the OVO**#pable of determining the species of these compounds or their actual concgi.i.§::frie soil samples. Consequently, it should be considered merely a roy.R1.76r: .0,00*aids in detecting the presence of soil contaminants. Results..940. ra1.ysts are pre$ened on • •• •• •• •. ••. • •• •. •• •.: ••• • the boring logs in Appendix A. •••::-•::••••• ••••• • . •. ••. ••.. 46.00131§ Well ConSi .tJtlon it.i.Ei *O.b.ijoring.. .l.****:-.constructed with 2-inch outside diameter Schedule 40, flush 10 foot length of 0.01 inch slotted Schedule 40 well screer Sele sand was ther.t#10ied to surround the screen portion of the well during withdrawalthe auger ::::*.s*.the..*:.;reened portion of the wells, the annulus of each boring was backfil)0:.y.;:,:40.iiii.giiiiikt0i.Fry bentonite. At the surface an approximately 1 foot thick cqp.:0.:0.00.:*4iii..4.plid.e.Oitfie wells were completed with a flush-mounted, tamper prodfz.irlitiiti6ip.**i2A.40**::::ivionitoring well as-builts are included in this appendix. . . . •• ••. ••. Groundwater Samptl Procedures The groundwater saiii0ing propq040iIktiii.4.. . .!..s consist of evacuating three to five well casing volumes of wat fron eath well usr & bailer or pump. Once the well is evacuated, a new labori0i.t).:ioy.i.itio:*pos0.1: ::i*ler is lowered slowly through the groundwater interface, water surface is retrieved from the monitoring well. The water is carefully decari into 40 milliter (ml) and 1 liter bottles. the vials/bottles are sealed with.*7.:0 ;.:.106. threadp.0 :• excluding any air. The samples are immediately placed:: :::§00:16e ches;-; . .4::1•4?.?.0. .r-ted under RZA's strict chain-of-custody procedures to an-a:.eialyticeHe**-0.rii:ii.cier:ii4iii;pntract to our firm. • • . •.. •• --• ----- • --,,. .--- ...:-....___._......._-:. ::.:.1 - ' .._...--.. lr r PROJECT Ca teiray.-.:Ce. 'T W.O. if- 21 WELL NO. B—//miii—/ . ..,:z.,:::::••::::•:::::::,. Elevation referenc.ez•::::-::-•:::::•:::.•::::-• AS-BU1LT DESIGN Ground surfape:::.t.1 . .1:;..../,':-••••••.:::::::::-... Casing elevation: .99.0.1 x _ .......-.::.............................--...z...::;.;.:•••••::•• u ; F-1 If: '' 2= 51 IT. = .::: :::•:-:::;•.;;;;.:•:..••••:'••... --;'",,..Af.•......=. ...E.-Lre, E:-..„. ..,. Z F., =a ...,R g.: 1j '....::.'''...:••••••Wir;DESC 1414 TV a aZ. ..4.)., .... .... _..., .,.. ..c ,_..•..c _ Flush-177011D led steel monument r-- E.: u,....:.,_•,..:„...,..... ... •••:::-..:-.7.....: <1_ = Ea; = 0 t?.-.,::-•...".••-::'••-.:'•-:'"•--.- 1 rn t•n z L.: = u 1-7 - 0 i6".•.!:-"-4i: .• ----7- ; ;;?...._...a., . Ground surface \\4 "11116/ q. , •,. $:::: 44o/t over Or.g.o?,.::af!hY•q•....(41) i OP 01 casing• • •• ... •. .::::::::::::::*4::......:•• ."•::::••••••'•••••'••••.**•••:'••:' . ., '1:••••••::::::*•••••:•'•••••:',..*:••••:<:**••••:'••••:',::.'•••:'•' ,' • ti:'.. Concrete ••::::::::::::....::...::....:„..•.....Z.,...:.,.....z.., ...:....,:::•„, . :AN, ,.. 4. - . ...• .....:?-:;•;.;).: .:;:••::•••::•••• ••••• • - Very*•.kit*e::::•:.i ..11:st?o we!, bro)01.:;:::::::::::::::.4::::,1 . • - Bentonile seal . ..v . . 6 P medium iOl-Oorse S4N0.1f.,?1).:::::•:::::::::::::::::::4::::-.. -C-1" 1 4-7 ••••••••::••••:••••::••••::••••:::•:::•::::•.;••;••`..- .....:::::•::::•.:::•.:::••::::.::::..:-.....::::::;;:.:;;:.:::, - V i ::.i i,.ii.! Casing . .........::::::::::::::::::::::::::::::::::•*. "::::••••Z:•::::::•::;:::. , i;! (Schedule-1 _ - 5 - --- _ 111111111111111 2-inch 112 PVC) • AlD :::::*i-- .:: 4-4*-4'..:•••• . .. '.??74:7':"..*1.f.',..."...1:"••• ••:::::::::::::' .::•:.;:•••:::'•:::*•:::'•:::**::: :..;':::::. ':::: - - ::::::::i:_:i*:::: •:::::;::: ::::::::: -•.::•••:::••.:;•••::::•::::••:',.1.....*•••:% .... _ .... Medium dense 16 dense, .,,,.§,;:ti.,::.w.46.,..,?b:7- silly fine to coarse 54NO.:•.: :7.??Zi..i.gr...O.. . •••••••••••f. 5-2. 1•5 32 ' ::ii; -iiii:H: Select sand • .. .. . '7,-- hi.ler pack •• ... •. ... _ . =::i:...:: _ •i:i*i:i=::i:i*.: .. .. - 10 - . ..-....:::. . • • • • .. ....1:•••:•••••••••:••:•••• .................. -------------... : i:: i--.s'iii: : - - .....z. ..••••••:.. ••••••••:•••:•••••••••••:••i:••••:••••:$••.:-..:•• 1 i;::.iii :::::::: Screen ...........;;;;.::::: ...::••••••••••••:•••••:•••::4••::•••:::-Z•••••::•.:::. ..... ..... .....................I:••••::•••:•••;••••••••".:-....::,....:::::.::::•:z. :M= iiil (2-inch I.D. PVC •••••••:*.•:::••••::•••::•••::f.:::•••::•-:% ...;•.;••••:••••••••••••::•••::•••::•••,-....:••••::••••.: - •:...• *..... ..... .*::: Prllh .........:: : :... . . .i. ......., . .....;:::.: 1.:::: :::::.. 111111111:111111111 :: li-:::i=:::iiiii O.0.20-i n ch slots) i:iil-i:: i:i 8015 pro pe/y, very odorous •••••.....:•••••• '.:•• :;.•:;S :. : :-7.7.• ••••-?..12 . ::ii;:.=iEii 8020 - • ••:'...- ...* ***;4'.;:••••••:::::: :::::•:.::::ii:::::::. ::::::.::—:::::::::, :•:::•:-:—:•:•::::. :,:::i:i: :::i:•::: ' --t.•:::'..::*•••:;•••••••:*•• '•••.* • :::•:-:.:—:•:•:::•: . Very hard, moi:st, lon/groy, fine, _.1 ...••[.. :••::...t...::............ .. •-:::::::=::::::::: - 15 - sandy SILT some grove/(g/ocio/li/0.............t ::.:-.: ::....:gt::::::::' T.....:::::§:: ::::::::•;...:•!illif=111:111111 _ .. ., .... ... ... ... . ••. ... •. •. .. ::•••••••••••••••••••:-..•••,.....',.: :i:i:i::: Threaded end cap ••• •••• •••••••• ••••• .::::....:::•••::•••••• .:•:::::::::......::••••••••••:;•".....;.":':4.. ---:X •••:.•••:::•:' . . •...• I .. . ...:::::.1::.::::••:::•::::••:;;••:". 1S:-.:::::: '.:::: . . . . . . !----E- 5--,1:::504.4,:':4,::6. :: ' • ••••.:1. *t -,.1 8070 .• '•••••••••••••1•••:'•••:••Z:••••:••••:**1.:••••::•• •••••:*••••:**•-••::••••:::•• goring lerminoled of 18 feel. — ••:::::::::::••••1 **-::::: :::::::::::::.„. ••••::::::::•:::::):7••••• ...:1:::÷.:.::-...:-..-.. :::::.•-• . _ .:.....::•-•.::• ••• . . .....:••••.:-• . •:::::::::::::::::::::::.. • •:::::::::::::::::::.:;:: - - - %::::::::::::::::::::::•:. . • ................ ... • ......;;.:::::.:::::.::::::::::.::.. ... .. .. ... ... ... ... ... ... ... •.. ••• ••• ••• o. •• •• •• 4. •• e. -25 - _ — — ...... .. .. .. .. .. .. .. .. .. .. . - .....:::::::::•::::-•:::••••::-..:-.....• .............:............... — - - ...::-.::••.::•••:-.•••:-.• - ....::::::::;:::::::::.::::.::::.:::..:•• ........-........... ..... ... .. ... ... ... .. ••• •-• ••• •••••................. - - . .......... - . . . . . - 30 - . R/TIDVROUSE-ZEIZAN d- r?.Z A ASSOC1ATE.5: Ihr --r- 2-inch O.D. m Observed groundwater level E:77 7.:•.1 :1 Ceotechnice/ et. Alo (AID = at time of drilling) _!._ split-spoon sample :• .::- ":-."' Environmental ConsultanLr 1100 J•101.12 Ave NE '-' Bellevve. kashington .98005 Drilling started: 31 /Icy 1991 Drilling completed: 31 Aloy 19.91 Logged by: CCC PROJECT Catewwa •.. ce. r W.O. IV- 2, WELL NO. B-2/illf=2 Elevation referen+ e; :: :•: : :: :: AS-BUILT DESIGN Ground surface',*-ek'zt a' :; :::'•• Casing elevation: 9885 0 z F• ^ ;a::;.. •••:• -v:I s F z z- Plush-mounted z :•801 :;'.DESCRWWTI :: <�. i R c c >< c.Z / steel monument F tn .:� v;Fi Z U Ci C7 L . -_� : ; ::;;•:`' :.::::';:`"::: Cround surface :}:tsfp!?o// over brc.%ti`.:S�+s; '( ,) �•, Top of casing - :: ••J '�•' Concrete - toase'irPoist`;t'.gel, gray, grace/ " 1 ;,!�j,Q� • --Benlonite seal MI5 medium Jo coarse S4N0.(ri/rf ""••''~`':•••' ::;::;:; Dose wet block or•l it^ .ram~h;': i11; :' Casing Loose, � .••: •• l'•":::�:.:•��"�� � - ('Schedule-�0 - 5 - fine to coarse S4• i2 O9Ob°e%Q/•C'•g soli j 4:••. •:;:;•:• 6/t8/9t 9 ,.:••::,•�• = 2-inch I.D. PVC) odor. •••.. - •-: S-2- 85 55 ATD Select sand Very hard, wet, groy/grbr rr.::la::Ion, lni; 'I I - _'' — f ller peck - sandy SILT some grog!: ••: _ ;�;: �;:: ,:::::::: .•.:•••: _ .... Screen .:,.::••::••:: ::::: .. _ (2-inch I.D. PVC • = with : '• "~ - 0020-inch slots) - �; Threaded end cap Si/tv-line to medium S4N0. /Z•::2 :i::• •'' .. Boring terminated of 18 feel J • ..' -' ••. • 20 - — — - 25 - — • — — - - 30 ' ' LEGEND R/77E'N//011SE-zgh'AN d- _ R Z A ASSOC/A7ES INC. O.D. n Observed greund•elcr level �!7 Ceolechnica/ k split-Spoon simple 4 (ATD = et time of drilling) •.r'.:•. Environmental Consultants c^. >100 190th Ave HE Bellevue. rashin,cton 911005 Drilling started: J1 ,l/oy 1991 Drilling completed: .3/ Voy 1291 Logged by: CCC • - ..' . ..7.7 W.O. if- 1'24( WELL NO. ,81-jAfir-3 PROJECT Ca 1 e wa .::.:..c.,....,,....„.....e..._._... ..e. 1- .e.... , • ,...;:-.:.:• . . ......:. , Elevation retereps*i::::::::.::::......:::::•-•:•• AS-BUILT DESIGN Ground surfac0:•iiii•Vgitii:::::: :::?.::•:.... Casing elevation: 100.2.5 2 ......:::::::::::..... ::..:::::....... :: ::::::::::::, "2 12:: it ,ir 12 .----: .77'F c- = - z 7: -it tt: Et" / flush-mounted ..-:::-.::••••::•••::::$011:DESCRIZI3t):14.: 57- = = 2.-c' 75< steel monument Z.:4';.:::::••::••: .ci._ -c - -- o >•;.,.: -.). V) VD Z .--:-.; °= t; / Cround surface • - 0 4i.. .- -.4 .100011m.___ •••::::4:4)*.grovel(); :57.?1,1:"..:00.ie ;•:...S4NO, I =7: Top of casing:, ..:::: zi'.::e...zzOcre.l.e.:0.e.:".P-t0....iit:debris (/7/A . . .. .z................. . . ,::•••1 : ;I:x6. Ei.4:4,. q.-4 V • ke: Concrete . .-.........:::::::.:::::::::::::.::::.::::••:::•••Z-:::::•:* .......:::•••:::4 - • ,.41. :„. .. •..:'. ' M '':,., Bentonite sea/ 1•••• _ Denie•....../2 .1..-4•10i5j1"-9100179 14?.....47.i4::: :.:::••J - • % sill', 9'044: medium lq"c... ..4?......*!*-...z.:::i. S-1 28 57 iota - Casing -.:::.•::;••::::••:::••:::••::::••:::•; -::•.:::::::::•:•:1,••••• -••-- - ••••••••• '. :::: M - - 5 - ...........z..................:::::::::::::::::::::::::::::::... -4i!--,::::::::::•.f.:::::. — — - (Schedule-510 :::i::.:i:i ::;•;:;-••-::::,:::: 2-inch.1.0. PVC) :•::::::.::::.:.::::::.::::ii:::.::::•::::::'::::•:::::::::::•:::ii:::::., 1::::::::::z....:::::: 6/18/91 ;'i:•::.iii:i=:•:: :::.•::::::::::::::::::::::::::::::::••• ...::::::::::::::::::::::ii::: :::::::::::::::::::::::iii::::::. • Mii_::i.iliii •••:::,:::*•:::'•::::•:::::•:::*::::1::::•:::::•`;':: - . :!:::i=i:!::: ii . ..,.. ..•-•;:`...J--....."%:•;:?-;:.. .::):. *01 hord/dense• 172°819....... e..(:....g.k:::::1:1 5-2-50/5- I.j• :l.'::: - grovel(); fine lo mediuii.:,...::570j:O:y S/L7•::*•: AID :::::•:-:,=•:•:.,-, :::::::::-:::,<. Select sand lo silly.54NO(g/ociol.:i`i/4"14::.:::::-.' - - - -......-.....:... iiiiii::::-i:;i:::i filter pack _ •:::::::::::::::::. 1.....::::::`.:::::::::::::•.:;••::::•::;••:::.. ...,......--.-- - 10 - •••:;;••:::••:. :iiiii::=Iiiiiiiii _ _:M: ''......:::::. • very grove/./y ••••• Screen :::::::::: :::::::: ••:•••::•••:':••••:••:•:::: :::::•:*•••••••• ••••:'1••••':•••:'•••• - .:...:•.... -.i..:..::: (2-kch l.D. PVC ........::::•::::•::::•::::•::;:••.1...:••:::.-::••• ••••••••::•••::••:t• ..................................::::: ** ****: ••fice...*::':*:-,:....:',.....:. Pith• • .. •• •• ... -• •• •••••••:... ,:•• :••••:••••:". ..:::••::::::::::.*::::-• ...4:E1::-)•&:••?..- 4711:4-•"4::' .......... ...... 0.020-inch slots) ::::':' . ..*:••:::.:;::::-.:::::::::'-:::::::::::: ::::::::. ......... ....... - ,:.;;;•••..;.-..•.••; :.:.;.-:;.••••ii:.•• .....:•1,••.:.::.:.•i...,•• :•...:..••...-,••.•:.::.•:. --••- -•••• •.... ..:. - 1 :::::.t::.::::::.- •••1:::::.:•••::"::• Threaded e.:::c a p ...1:::::::•::::•;;;:: :: 4i.::::: ..............:*•-:'.::::•::••:::••:::••:: •.::':..:::::::::. ..•••••••• .•••••••• ....:::::-....:::::.::::•::,::.:;;;•:::. - ...-::::::c:iiiii '.:i::: _ ,- 15 - ,... :.:::•::::•:::::.:7:::••• -• ••-•• .. „. ••• ••• •••••• ••'.....::.:. ....::::::•::::::::::::::::'' ......1$:.:•:•:..:::::::. ::::::.....:•:§iii ill111111 - •:.:•••"- „ „ „ .. „. •... ... • .. ••••• . - 7-7- .5.74..i55P3:::::::':1::::.. .*::::1:::::-;:: .4. , • ' ' • • • . .. . .." Boring lerminoled ol 18 feel. . ..,.........:::.....• .:;;;.:•• ::::::::: :::::::::•:::•• ...*::::.;:::::::::::::::: ••••:::::::::::::i::1:::::::::::Z:::::::•:::.: •••:::•.:•:...................... ''•••••:::•••::.1. ••••::••• :•••::•••::••• ::*•••••••••••::*••••:'••:* *:::::::••'. ....::::i•:::::•:::::•:'• ::::-.::::::*** - 20 - — ......... .. .. .. . ::.::.-.....:.::.:::'''. . „ •. •. . . . „ - - •::::•••::•••::••:::•••:. - • •••::•••::•••:••••::•••:. •••::•••:::•::::•.:::•.:„ ":.:::::::::::::::::::::.;•• ' .:;;;•::::•::::::::::::::. . ' ' • ' "*::::::::::::::::::::::::. " ..„;•:::::::::::::::::::::::::::::. - - • ••::-.:::•::::•::::••:::::::::•::::•::::•:„ - „•••::::::;•::::•::::•::::•::::••:::••:::•.:::••:::•••. - 25 - — — — •••••••::•••::•••::•••::•••::••::•••:::••:::••:::••:::••::::.• .:::::•:::••:::••:::•.:::••:::••:::••••• ::•••::-..::•••::•••••••;• - • • „ -. ••• ... ••• •.• ... ... ... ..• „ ' ' . ..........::::::::.::::••:::••:::••:::••:***. -::::::::-::::::::::::::::::. " :::•::::•••;.::::::::::::::::::::::-. . . . ••••••:::::.:: :::::•:::•.::••••• - ••••::,-••••• . . - - - - - 30 - I- G- 1N•Tr) R/77ENHOZISS-ZEAMN.I- . R Z A A3S0C/47ES: INC -- 2-inch O.D. m Observed groundwater level E."2: •.1 :) Ceotechnical d•• mo (AID = at time of drilling) • Nsz74 Entironmente/ConsullonLs .-- split-spoon sample : 10 Olh Ave h'Z' r"-:'"j17, :18eIfekv jle. Yeshinelon 90005 Drilling started: 1 June 1.9.91 Drilling completed: 1 June /991 1-oeeed by: CCC .:•,.- .... .Y•.•:••. . yti.. .. • .• Y. •Y.Y .• :::::::::::.:::::..::::::::--..... -s:::::::::::::::::::::::::::::. ........::::::z.:::::::z..... ......:::::::::::::::::::::::•-•••••:':-: , ..:::::::::::.:::::::::::::::::::::::::::::::::.*::' • 'APPEN 8:: •. ht.--7624 ........!..................:::::::.::::::.:G............4:::::::::::...........................:.::::.:::.::::!......:..............!..:.:::.............................:::::::...........z...............zz...::::::::::::::::.. APPENDIX B W-7624 • Laboratory:Testi g:: Selected soil .and groundw i': cr a e S :ses were submitted to Sound Analytical, Inc., for analysis of total petroteu:.0.'ai+oc z3 . s (TPH), benzene, toluene, ethyl benzene, and xylenes (BTE :::l a1pger a'Eed: olatife. purgeable aromatics, PCB's, and lead and other metals. TPH analyses were .:pe orined':bsing EPA Method 418.1 and 8015 modified volatile organics. BTEX wes :I;eSted by EPA•.MethQo..8020. Halogenated hydrocarbons were tested by EPA Metier 8010.::•::PCgs::weri :: t swd by EPA Method 8080. Total concentration of lead and ptfi0r:•rr etatswere feste ::b !I,C.P. Procedures. .4 ::: :::::...... .. . .. .. .......z.............. g .g. . • • .,_,, , S 0 UNID NALYTICAL S ERV" ••.: ES INC. : :! 7: N NDUSTRIAL&TOXIC WASTE ANALYSIS 4433 i; ii6.iiiii:i4Y EAST.TACOMA.WASHINGTON 91424-TELEPHONE(206)922-2310-FAX(206)9=...5047 ....::*...‹.....4'.....-:S:-...' ROpprt To: Ri .: house-Zeman Date: June 25, 1991 ...:::•:::•:;;;_,..--:.• „•:.::._ ......:-,::,•••:::-..... ....:.::::...g%lit 011 ,....?::..A*a.-.1, Sis of Water Lab No. : 18180 .-1-PgTrIqi2V.rION: .......-..-- . SaIlip.1i*??4e*aeived .0. ......4;;:44-91 ..:•.. ..........,„ Project: Gatewc. 40. #..::'......: ......................... ANALYSIS-t-S. .-:::::::::::::::: ::::.. .. •. . . • .. .. . .. •. .. •.. . •.• ••.. ....... ...::::::::::::::::::::::::::..-• .:::::::::::•::::::::::•::„ .:-:::-:::-•::-•:::- ••.:•••.:-..:-... • .-•:::••::-.:::•••::-::-::-•:::•.:::•4::••:::.•:: .•::•••::•-•" .:•:::::•:::::::::•::::•::::•::::::::::.::::•::::.::::.::. .:•• .:::::::::::::::::::::::::::::::::::::::::::::::::::::•:* • ..:•.:':::.:'; :.::. -•:::::::::::::::::::•:- Lab Sample Nci.:.:-:....:::::: '-:-" 1 1 2 :::.::•.::::•.::- Client Iden :',:ir:•iCation ..-::::•::::•::::::::::::::J:::::::-::::::: 71-S1 MW2-S1 .-•::•••:::•.:::•••::-„:-.::-:;1-•.:-•:::•••::,. ,:::. „:„:::.::::•::::•::::,:::,:::...::,::•••-.....:-...-••::••:::. Units mg/1 Benzene '7'.....:4:-:*::: ::-::::... .-z:::::. 4:::::::::::::::::4:4. 086 0. 57 Toluene :....::::::- *:::::..i::::::4::::::- :.....::: ::b. 022 0. 057 •„:•• • • •• •• •• ••• ••• •• •• •• •• •• ••• ••• •.• ••• •• Ethyl Benzene ::: :::::::::::::::::.::::::::::::::::: °' 2 6 0. 048 Xylenes ..''..‹.‹.:*-:-:... * 0 74 • ..::•.:::.•:::-•::-.::-:::••::'• ' O. 14 ,::-.:::,:::,::::•::::,:::-:::,* ..,:S:::::::::::::::::::::.. BTEX by EPA SW-846 Method 8020 •::::::::::::::..- ..-::•::::.::::.::::•::::•::::::::::.::::.::::.::::.:::. Total Petroleum Fuel ,:•::ii:::::: ::::::::::::ii::: :::_..,:::::_...: •::::: ::::::::4•::::•• Hydrocarbons by EPA SW-84.6..:.*:::::::::: ::.::::::....742::• ''.$:.::.§.. i..::.. < 1. 0 Modified Method 8015 ....:S::::::::::::::::::- . :::-::...-ZS'.....-:-... ...-.........4...........:.... ..:::..:::,.::,.:::„::. -,::::1:::-:::".::•• -:::::::::••:. .,::,::,:::,::-:. •-,...,::,...-• ...:-..::-..:,:::,:.. .-::•::..." TPH as - t,:.0::::::::' - ••::::*. Gas Total Lead, ug/1 1 6 „ ... •.. ••. ••. ::::•:::,::::•::::•:::: < 5 . , . . . . . .. .. .. .. Lab Sample No. 1 1 ,:.::::•::::::::::::::::::::::::,::- ....::i::::•:::::•:::-:::-:::•::::-::•:::::i:2. ...:::::::.:::::::::::::•::::•::::::::•:-.*:::-:::.:z•: ,..:'•-::'•• BETX- Trifluorotoluene 103 :.....:.:S ".....-. ....:-•:-.::-•:::••::-•::•-•:•••::-:. - < •-•:•-• Surrogate Recovery •::::::::i::::::::::-- ••:: ::::::::-'• „.- • 1-Chlorooctane 86- :-... 98 Perylene 103 107 Continued . . . This report is issued solely for the use of the person or company to whom it is addressed.This laboratory accepts responsibility only for the due performance of analysis in accordance with . • • __.......... I-........-.•i•-..e...... •...........,.......:-... ,.._ ....•. ..--.-•—,---•--......i-I...................•:.,--..--- • •.-... .. .....•:., . r. .. ... ... • • SOUND . .4ALYTICAL SERV- S, INC. R ?teiihouse-ZeY ::: :::PXQ) t.ect: G . eWn. ` Center :Page... 2 of.:;3:: :::: .:: 0:: No:=••....: szao: :s Lab Sample H©: ::::3' : ::: ::` :: :: : Client ID: MW3-S1 Purgeable::i z aca olas pe ;::-::: Concentration . ma/1 Method::: 3:1:L`:::4n•' C R:;::: ?axe :::: Vinyl Chloride. < 0. 005 • Methylene chl:ai' cie < 0. 005 1, 1-dichloroet..1ene < 0. 005 1, 1-dichloroe • iane < 0. 005 1, 2-transdich oroethyi.*ef ::.: :::: ':::::: ':::; < 0. 005 1, 2-dichloroethane ::: < 0. 005 Chloroform < 0. 005 1, 1, 1-trichloroe�:� afe < 0. 005 Carbon Tetrachlor a•e < 0. 005 1, 2-dichloropropane < 0. 005 Bromodichloromethane ':::<., 0. 005 Trans-1, 3-dichloroprC ne ' :S' :<-4.0. 005 Trichioroethylene ~: ::P•., 005 Cis-1, 3-dichloroprope:i*:: :: ::?`::3: :.Q05 1, 1, 2-trichloroethane ':: ::::3-' .05 Tetrachloroethylene :a:": Chiorodibromomethane < .::Q.:::�.:? •. 1, 1, 2 , 2-tetrachloroethane < a: :6 5 : Bromoform :•< 0 A15O5 Chlorobenzene < 0. 005' .. 1, 2 Dichlorobenzene < 0. O0 ::::::::: :: 1, 3 Dichlorobenzene < 0. 005::::::::::::::::::: ._ 1, 4 Dichlorobenzene < 0. 005: ::::::: : •• Total Petroleum Hydrocarbons 7: ::::::::::: ::::: :::., by EPA Method 418 . 1 Continued . . . . 'his report is issued solely for the use of the person or company to whom it is addressed.This laboratory accepts responsibility only for the due performance of analysis in accordance with iu'i,v err.-nt hl.nn.n:.•. le....�.....4+11 C.......1 n...,�....I C.... t... ........__1.�......I.........._.a..t....,_......._......._. . . , . . SOUND NALYTICAL SERVT TES, INC. henhouse-Ze „z : ::P:#pject: G.p.teWay Center :::Pat; 3 o f :4 :::::::;::: ` ::No::::: B1:00 :: . '�a:ii :::: 5:::::•: :49:1 Lab Sample N9..t:.:.3::::' : ::':::::::::::: :•• Client ID: MW3-S1 ORGANO:C:?7ARINt .: 4-.9.7IC. AS`5.;; :, PCB - Method 8080 Detection Compound Conc. , uq/1 Limit Aldrin ND 0. 01 a-BHC ; :ND 0. 01 b-BHC • ND 0. 01 ::g-BHC : ND 0. 01 y-BHC (Lindane}: ` : :::: ::: � :: : .:ND 0. 01 Chlordane (techr `a:11 ND 0. 1 4 , 4 '-DDD ND 0. 01 4, 4'-DDE ND 0. 01 4, 4'-DDT 0. 03. 0. 01 Dieldrin .2�{PT:::: ::: ::: :•. 0. 01 •Endosulfan I -:::-:::-:::<:-:.:- ..,::::::lip:::::*„:-....--, 0. 01 Endosulfan II `:2Za: :::; :•• 0. 01 Endosulfan sulfate :.9:42 0. 01 Endrin • ::�00 0. 01 Endrin aldehyde ::7q#�::; 0. 01 Heptachlor '•• : : 3::::: 0. 01 Heptachlor epoxide ';:Ii3 ••• .0. 01 Methoxychlor ••TiD.' • :::d::.02 • Toxaphene ND ::3::.1 PCB - Type ND :::::• •.• PCB ND :{J:': ::•• ND = Not Detected. PESTICIDE SURROGATE RECOVERY 2 , 4 , 5, 6-Tetrachloro-m-xylene, % 87.. `: :: Decachlorobiphenyl, % 97: Continued . . . This report is issued solely for the use of the person or comparry to%hoot it is addressed.This laboratory accepts responsibility only for the due performance of analysis in accordance rich . .- _ .. , SOUND- • • • NALXTICAL, SERV':*- ES, INC. ...:-..:,.. • ..:-::-....:•,::-.... .-:.:••.:::•4:•:::.................. . .........:::::.....,.:::..::::.::::...:, ..,::::::.:::::::::::::::::::.:::....-.:::::::.:::::::, . :.:::.::::::::.*".:::::::.:::::::::•:::::. ..:....:::..:::•«:::•••::•••::*••••:**- . ...•••::'.....-:::$::•::.::._••::,"•:::*•:' ........:::',:***••• ,.... ......§......A ..t*ehhouse-20:Pat ....... ......111:ti.:Sect: Ga4ii1.4..: Center :::::•.:•$.44*...4 Of...:-:-.4:;:::::::-:::::::::•::::*: fi::::$2R::;:...:::.;.:fr.1:4;:$. •::::::::::.... ..`1*i.i.i3:• :.•::::15......Z:::•*19$:r ..,:::::::•:::, '....:::::::::::::::::::•:.::::**:::::::::•::.- • • ...::::;:.:Z"::::."••:::::::::::::::::,:** ,:*•::::••:::,:::-:::•••::•• ...,::::::::::::::::::::::::::::::::•::::,:::,:::::.„ ............,, , Lab Sample...zi46,:: ..4:: . : : .. Client ID: MW3-S1 ...:::::::•:::•::::::..:::-::::-::::-::::-.::::-:::. ---::::-::::-.:::-.::::-. •:..--..--..:-.........---.:-..:- ...::-.::-.::•••:::•-•. .:::••:::•.:::•.:::-. ...:::•-:::•-:::•-::::-:::-' ..::::::::::::::::::::-::::-........::::.::::-::::-::::-::: ''.:::::::::::-:•• • ...::::::::::::::::::::::::::::::::::::::::::::::::::::::•: Total Metals: .....:::::::::::::::::::::;::::::::::::::::::::::::::-:::::- . Concentration, ua/l -::••::::•::::::::;:zz.::::-::::.:::::::::::::•••• Arsenic* :::::::::::::::::....:: < 10 ....'...: :: : : ::: :::. Barium ..-:::.-:::-.. 28 Cadmium .......... .................................-.................................: •• •• •• • ... •• .. ••• ... •• • •• •• •• ' . . . ... .. . . . . . •. • . • Chromium Mercury (cold N...r.:4':cii:.:: :: ::: ::: .:: : .:::: ::...... :::::::3. ::..........<!1..... Selenium :: ::.::••• .::::::::: ::: :::.::-.. .. ::•::::•::::.::. Silver ..:::::::::::Sz...:::::::::::::::: ..:•••:::•::::.::::.:::::.:::::::•;::-: ••••••:::••:::-.:::••:::••:::•••::••••••••• ......-.......:::••:::••:::•••::•••:•:••::••••• - ..z..........:::..:::•.:::-.:::••::::::. * by GFAA --:-....::•••-:•:•.:•:•-::•••:•• ..:-:::•-::::-.:::-.:::..::::-::::-::::- •-:::•-:::.--::•-•:-.••••• ....:::::::::::::::::::::::::::::::::::::::::::::::.. •-•::---::.--:- ..:::::::::::::::::::::::::::::::::::::4:::::::::::::::::::-. .--::•••• ...-::::::::-::::-:::::::::::::::::::-::- •:::::::::::::::::::::::. *:::::::::::::::::::::::::::::-.:••••::::.-::::-.:::-.:::-... :::-.:::•-:::-.:::•-•:: --_:::-.:::-.:::-.::••••• •::::::::::::::::::::::::- .::::.::::-::::.:::::::.. ,.,,,.....- .:::::.•• W14D • ALY.4cAL SERVICES •-•.::•••• '-:....:::::::: ::::::: .,. LARRY . 4::••:::••••. -:-.........--::•..::•-:::- ............::::::::::....... • ....::::::.:::::::.:::.:::::::.:::::-:::.:::::::-::•,. .....::::::::.::::.:::•.:::•-:::-.:::•-::••••• :::•••::••:::-::•:•:::-. .::••••.:•••::•••:•••-•::•• •:::::::::::::::i:::::::•: -:::::::::::::::::::.::::.::-• --;:........4:-:::::::' ..........-::•.-::,:- •-.:::::-:" • • . This report is issued solely for the use of the person or company to whom it is addressed.This laboratory accepts responsibility only for the due performance of analysis in accordance with ,n,ttmt Iv:werninhic nrartire In nn r-vent shill Sn.inel Anihiiril Crndire., Ine r,,ii,,,,,,i,-,,,,F,......,,,,„0,1,G.,,,rs.cerme vs,ini nr.......-i,t A.....,.....i.,.....t;...1 n.:.,...•......... • .._, . , S 0 UND •-NALYTI CAL SERV-- ';ES, INC. ..szi:iii.•:. .... cI.ALLZ.ING IN L\MUSTRIAL&TOXIC WASTE ANALYSIS 4$1344!ti*i*iiiii.i.Y EAST.TACOMA.WA.SHINGTON 9E424•TELEPHONE(206)922-2310-FAX(206)9=-3047 ..••. •...... . . • . • ....::: :i:::::::i::::iizzi::::::::-' -::::•-::::-::::••::::% ...:::::::::::::::::::::::::::::::::::,' •:-:::::::::::::::::' ..:-.: ::::::-:::::::::::::::::::::::.•:" - :':::::::::::::::::: „i:::::::::::::::::::::::::':.. -::::••::::-::::..:: ... , , , • .4:::?:::::::::::::::: QUALITY CONTROL REPORT .. .. „ „ •. •:::::::::::::::::::::::-.. ••":4::::"::::::::::::::::::::. DUPLICATES „:::„:::•••:::•••:••••••::••••:••••••••••::•••::••••:- ..;•:::•„::••• • „ •.. ... ••..•... ... •.. .. •. •. ... •. . . • . . ... .. . ..„::••:::••:::••:::••:::•„:::,::•••:::„.. •••••••••:••••:••••::•„::•••:::„.::••:::,:::••• Lab No: 18180 (3 Client Client ID: MW1-S1 Date: June„: p::;::::::10.4.:::::::.. Matrix: Water Client: R .I.#.4.:i4.04 : 0'irtan':.:: :::::::::::: Units: mg/1 „4:•:::::.:::: :::::::•::::••••• ::::::::.::••:::•••::::: 4i:::•::::•::::•:::::: ••:„::::•::::::•••• .: :::i.:::::::••••••••::•.:-•:::••:::":::::::;-.A,•:"•:** Compound ".::-' 4-::-::-4.4.::$at:pl*k. Duplicate(D) RPD* Benzene .:::4:::::4:4:: *-‹":13.086 0. 073 14 . 1 . „ .. , Toluene :::::::::: :::: 0.022 0. 024 8.7 , .. .. .. . .. . Ethyl Benzene *:: ::: ::::" -4:.4P.:;::Z211:::*::::::: ::. 0. 25 3 . 9 Xylenes '':::::: ,-$::::4 :61.i......::4::::: $4:::: ::- 0.77 4 . 0 - „:$::•::::::::::::*$::::'$:-"-'— *::::.:::::s %Surrogate Recovery Trifluorotoluene "::::::::.: :::::::::::::: * :.:::::::::S:::::' 110 •:::••••• ' i: :: :::::•:::::::::.::::•::::•::::: Total Petroleum •:::::•:::••::::::::::::::::::::::::::::. Fuel Hydrocarbons ..:::4$:::i::::::::::::::::::: .434 13 . 3 „::••:::••:::•:::::•::::•::::••:::•.•••• %Surrogate Recovery - -:::-::-::: :::-::-' •••••::•••::••••:••••:••••::•••:: „::••:::•••::•„::,:::_.••••_••••••,•••••••. 1-Chlorooctane ...::::.:::..:::::::tt ....::::::::.::::.::::•::::•:::::3:94:::::•• --- Perylene '::::" 103 2.:, 4::::::-.„ --- .:„::„:::••:::••:::•••:::••:::••:" ' -,:•••„••••:••::1•:„ , . •-•:••::••••:i:•:44:••:::••:::••:::-•:::••:::•••:: •••••::•••::•::::•••::-. •. •.. ••. •.. ••. „ „ „ •. „ „. „. .. ... ... ... ':::::::::::::::::::•:::••" •:::::•::::„:::••:::•„.. ::•••::•••::••••::•••:: ••:::••:•••••::••• ••::::::::::::::::::::::::. :::::::::::::::•::::•:. •••::•." • • •• •• •. ••. •• Lab No: 18180 (3) Clii-i :I7b Idi.: S1 „ .•••• . . Date: June 25, 1991 Matrt'' Watex::::::::::.. • Client: Rittenhouse-Zeman Units': ug/1.4 :::', Compound ' Sample(S) Duplicate(D) A .35.k.:...z........... ..............,....4.4......: Total Petroleum ,„:::••:::••:::„:::•::4•:::••:::••:::••:::••• •••::.•:::,:::••:::••:::••::•••::,:::••:::••:::••:::•• Hydrocarbons 7. 4 7 ...4z..:::,:-„:,.>„:-„*.,4:!. .-4:-. . . •• :-,„.:- :., •,.: •,:•-•;.• ••- •,.- :-:•-,`••••::•••• .......::::.:..........z..................z... •::„::::::::::::::•::::•• Arsenic < 10 .:•:::•::: ::46:::::::::::" ---:::***•""...**:* 4..." •::•: ::::••••:•„• Barium 28 *• iiiii -: 7 . 4 Cadmium < 5 ." :: . 5 Chromium < 10 < 10 --- Lead < 5 < 5 --- Selenium < 5 < 5 --- Silver < 20 < 20 Mercury < 0. 2 < 0.2 *RPD = relative percent difference = [ (S - D) / ( (S + D) / 2) ) x 100 • • SOUND `� \TALYTICAL SERVT ES, INC. .:�:::`:::S? Zfl G LN INDUSTRIAL&TOXIC WASTE ANALYSIS 4813,P.0 IG ►`Y.!.�:LS• TACOMA.V ASHINGTON 96424-TELEPHONE(206)922.23)0•FAX(206)922•30t7 r.... 1•. • ...7",•.... • " ��'' • QUALITY CONTROL REPORT DUPLICATES : 2z:izt1 : 18180 .(,:3:j::: Client ID: MW3-S1 • b .i.. : ' • June•.::2:5;:: : - Matrix: Water Client: R4-te7i)2C.{ se:-Zeman Units: mg/1 Halog V.c1�a�C .le•s i9i4.::EPA Method for the Analysis of Water and i4' tewat. .::...6. . -?:9 b20, Method 601 COMPOUND SAMPLE (S) DUPLICATE (D) RPD* Vinyl Cho r. de . 005 < 0. 005 --- cMethylenehloria 0: : ;005 < 0. 005 --- .: : ::` : : :::' :` i, 1-dichloroehye' : : "z< � L,05 < 0. 005 --- t ha •:1, 1-dichloroe:::::`' .t : :i 05 < 0. 005 --- 1, 2-transdic 20i" ethjtI:e ie ::< :: 05 < 0. 005 ___ 1, 2-dichloroe Zrane ::: :::0 005 < 0. 005 --- Chloroform �0. 005 < 0. 005 --- 1, 1, 1-trichloroethane..•: ':::: :: 0. 005 < 0. 005 --- Carbon Tetrachloride: < 0. 00:5:::: ::::; :;; < 0. 005 --- 1, 2-dichloropropa ::: ::::: :' < 0•a:0:4:g::::•:::':::: : < 0. 005 --- Bromodichloromethi3riO " <::::D.;;I :5:::::.-:::: ::'~':< 0. 005 --- Trans-1, 3-dichloropropene O:B- < 0. 005 --- Trichloroethylene ::<:::::a :Qfl5 •0. 005 --- Cis-1, 3-dichloroproperi O{?.5.. <:...§.. 005 --- 1, 1, 2-trichloroethane : < 0: :305::::.. ': ::::0:::005 --- Tetrachloroethylene < 0. 0....:: . '•: ::b. 005 --- Chlorodibromomethane • < 0.td '5:::: ''. < 0.; 035 ___ 1, 1, 2 , 2-tetrachloroethane < 0. 00.5 <..i::00% --- Bromoforn < 0. 005 < R::a :::•• --- Chlorobenzene < 0. 005 < 0' :Q(J --- 1, 2 Dichlorobenzene < 0. 005 < 0.15:: ::::::::. ___ 1, 3 Dichlorobenzene < 0. 005 < .O: :b..6:::: :::::::::•. --- 1, 4 Dichlorobenzene < 0. 005 .;; :::::§ aa`� � '�'• --- : " '' *RPD = Relative Percent Difference = [ (S - D) / ( (S + D) / 2] x 10:0:: :` This report is issued solely for the use of the person or company to whom it is addressed.This laboratory accepts responsibility only for the due performance of anahsis in accordance with nfnary.rr....ra.t...-.ni.. In nn........MU c........ n...�....i c......... 1... ......___I�....................ar.(.....................I....�._.�... .....t•i..A..-....... ....n...- . _ SOUND - : •TALYTICAL SERVES, INC. ..........: :::. •:****:.:::::.: ECIALIZING IN INDUSTRIAL&TOXIC WASTE ANALYSIS EAST.TACOMA.WASHLNGTON 9E424-TELEPHONE(206)922-2330•FAX(206)922-304T ...:::::::::i::::::::::i::::::::§•:'"..::::::::i:::::::i:::::: ..:..:§::::::::*::::*:::::... ..:::•:::::.:: :.::. ANALYTICAL NARRATIVE • • .. .. .. ••• ••• . •••, ... .... .. „ ... ... „ ••• . „ .... ••• •• TPFH CHECKLIST .. .. .. ... .. . ... .. „ •. • • ' ' ' ••• ••• "•• ••• ••• • •••• - •••• •••••••••••• .4:::::::::$::::::::: :::: .... „•••:::• client _g l.. 14 ,a.t.4.,-_..se-Zemap .. Lab No. : 18180 . . . , ..... „.„. ... ... ... Project Name GatWAy.::::: 0.i.itit Prepared by: Bob Baccetti „ „ ... .. ••• ••• ••• ••• ••• •••• ••• •• . ... ... ... ... ... „ „ ••• ••• •••• ••• • . •• ••. • • •. „„ .. „....... . , Delivered by: .... 444#4:::::: Z....:::::::... z..i„ Analyzed by: Dean Strom •::::::::::::::::::::::::•:••• .:::•:::•••::••••::•••::••••••••:••••::•••::•-•:::•••:: _ •:::::::::..:•• ••:,...::•••::•••:::•.:::-::••••••••••••:•-••:•••::. Lab Number -::. 4'.... :..-:......:4.-...:-:<:4.../...... 2 ..... .. .. ... ... •. .•• •... ... ... .. .•• ..• •., ...,....•...•••, .. • '• / : . . 0 , O. •• • O. .• Client ID -.::::: MWI'L-S1 MW2-S1 •::i:::::::::::: Date Sampled .:4...:::: 6-147g1. 4444.0:::::._ ....... .................:.............:41.:::: : ::::::::4:: Date Received • ..:6404.ii::::6 .1. 4.4..:*:::. ...::;.••:"1:„,••:i:••::,•••••••••••::•••::•••:::7.:::•:::,•• ••:,•••-•.,••::::•i::: Date Extracted "'... 16,: a.:84.:. !7-1?:. S. :*.:.::: *".** :::.:::••:::..:••••::••••:••••:::•.::•„•::: Date Analyzed 6-19-91. :.0 .10...;* ...‹ ::....-: :::::::::::' ..,.....••• Dilution Factor .....„.... „-..„.:...4-„-..- .:::::.....„.... .. I •••:--•;.:::•:::::::::::::-• „••:::::::::::::::::::::::::::::::::::::::„ Sample Matrix Wat4i,:::::' Wa:t.gr.....,..-.*:<-,:-.-....„-..-.„...• . 1 ..:••:::::: :::i::::::::::i::::[::::::::"•:•::: ::::•::::1:••••• MatrixSpike %R .. .. ... ... ... „ ... •••••••• ••••••••••••••• •••••••...„.......„...„..„...„.....„ .,..„ .. ....„.„•••• ••••••••. • • •• •• • •• •• ••. •• •• -• „ ••.4.• ••• • • • • '• - • • - - • ::::i::::::::::::::i:••••.. ..:::::::::::::::::.:::•• ..i:::.::;.::.:•Z:::.:•::::.: Matrix Spike .::::::::::::** *•:::•::::::::S..*.:- ..z.:4::--..:•-::::: -:::::• .,:-.-.::-::-..*:.., .:4::::::.' Duplicate % RPD Surrogate Recovery .:•::::•::::•::::•::::.„ 8015 MODIFIED • •,:e. ••• ••• ••• .:...::...::...::...:..., 1-chlorooctane % 86 98 .••••••••••••••••••• .. .. .. •• ••• • ••• ••• ••• ••• perylene % 103 107 ..„ .„ .„...„.....-.. • • 4 • Condition of samples on receipt. .•:**:::-:SZ Samples received in good condition with a cop.0..; .4.4: § 1.7:.1 -:::: ::. custody. ....:•••::••••:•••::••:::••::-.:•••••:••••••• ••:.::„::•••::::::::•4; •'-'-'' '' **• "• "' "' ....::::::::::::::::::•:.::.::. ';:::::::::::::::•-• :::;::-:::-'::;.:- •.:.• *:§::::•• Notes and Discussion: vx SOUND -'HNALYTICAL SERVT, S, INC. .i CIALIZLNG IN LNDUSTRIAL&TOXIC WASTE ANALYSIS 41813.F ifi Yti:iii 4Y EAST.TACOMA.V ASHI NGTON 96624.TE F.PHO`''E(206)922.2310.FAX(206)9=-5047 ~ • Wit. To: Ri;tt4;i;1ouse-Zeman Date: June 7 , 1991 ::g piart On: •:: Ialysis of Soil Lab No. : 17946 Page 1 of 3 rD ` l' FIEAT ON: . ::: ::::�:::: ::. Samples .Rece ived: : i :::i�E=:Q.::-.1-91 Project: W-7.6. 4:::::G:4te . '• : e.nter ANP.LY S I S... : ;:::: S'S...‹'... Lab Satile`::No. •::i:`::: :;:::. ';:::::m ::: :: ' ::;: Client ID: B-3,S-2 ORGANOCHLORINY; PES� ;C1 AND PCB - Method 8080 Detection Compound Conc. , mg/ka Limit Aldrin : ND 0. 01 a-BHC • • ND 0. 01 b-BHC :::STD 0. 01 g-BHC :••ND 0. 01 •y-BHC (Lindane) ND 0. 01 Chlordane (technical) • ND 0. 1 N 4 , 4 '-DDD D 0. 01 4 , 4 ' -DDE N.D::: ~:::: 0. 01 4 , 4 '-DDT ::: 7:1?:::::::::: 0. 01 Dieldrin : NA: z �.. 0. 01 Endosulfan I -'' . 0. 01 Endosulfan II • ::2.41D 0. 01 . Endosulfan sulfate Endrin :: 'i :: 0. 01 Endrin aldehyde • • :::N;A 0. 01 Heptachlor :;43:::`„ •• :;a:. 01 Heptachlor epoxide ND :::3:ti:01 Methoxychlor ND .....„•.. Toxaphene ND : ;4::' •• PCB - Type ND ::••::::::: PCB ND 1::: ND = Not Detected PESTICIDE SURROGATE RECOVERY 2 , 4 , 5 , 6-Tetrachloro-m-xylene 69 : ::::: .. Decachlorobiphenyl 65% Continued . . . :11is rcpon is issued solely for the use of the person or company to whom it is addressed.This laboratory accepts responsibility only for the due performance of analysis in accordance..ith n iuMtry acceptable practice.In no even!shall Sound Anshiies1 Services.Inc or es employees he resnnncihle for ennsr•ouential or.r•rr..!d:.mnrr<.n+.nv I:n.1 n....•..,.+.......... . SOUND NALYTICAL S ERVT '.ES, INC. 'Ra;tt reh .:::::::::::1:::.::::::. ouse-2e. ..:.r`'•zoJect: W-7 4::: ::Page 2 of:..•7: ::: :� ie 7:.. 1..9P3:: Lab Sample No..: 1: ::::::::::::: ::.. Client ID: B-3 ,S-2 Halogen to olt"f3:es ? EPA SW-846 Method 8010. Concentration, ma/kg Vinyl Chloride;::;;: < 0. 10 Methylene ch r$.i e " • < 0. 05 1, 1-dichlc=e lene < 0. 05 l, 1-dichloro tz ane < 0. 05 1, 2-transdichiloroethyl to : :.. < 0. 05 1, 2-dichloroethane;` ::: : :::: :: ::: : :: 2= < 0. 05 Chloroform < 0. 05 1, 1, 1-trichlorc an < 0. 05 Carbon Tetrachlcr < 0. 05 1, 2-dichloropropane < 0. 05 Bromodichioromethane < 0. 05 Trans-1, 3-dichloroproza ... ."' < 0. 05 • • Trichloroethylene < 0. 05 Cis-1, 3-dichloroproper; -: < 0. 05 1, 1, 2-trichloroethane < 0. 05 Tetrachloroethylene 0. 05 Chlorodibromomethane : . 05 1, 1, 2 , 2-tetrachloroethane .: : :n. 05 Bromoform < 0. 10 Chlorobenzene < ..:C: :0.5 • 1, 2 Dichlorobenzene --:::c: .:05 1, 3 Dichlorobenzene ..: !::::.5... 1, 4 Dichlorobenzene < '6.L:::0`1•.:4••• ::4:: :5 Total Lead ::: Total Petroleum Hydrocarbons by 21' EPA Method 418 . 1 Continued . . . :'hiss report is issued solely for the use of the person or company to whom it is addressed.This laboratory accepts responsibility only for the dur performance of analysis in accordance with ...;:Str'::ier'lthle nrarlire In nn.Srnt ahatt c in4 LnahLr:.I Crn•irr•• tnr n•a.r.n•.bn r.r M..a.v.n.:..tr L.r rn...e..........t......-..._ ....«._._ ._...�.F._......_....•.«...._. SOUND N -ALYTICAL SERV' :: 'ES, INC. t t : izhousa-Zei a:zi: :: oj ect: W-•762:4•::' 4:e.. 3 o#.:•::.: :::::: : ::~' ::::;Lia:.:::: •.:* • • Lab Sample.: o. ::.-,::<:::::::-'4--:-4::- :S:.. I 2 3 4 Client :Zc1.0.1.ficat. :on B-1,S-3 B-1,S-4 B-2 ,S-1 Units mg/kg mg/kg mg/kg Benzene • 2. 2 < 0. 05 0. 17 Toluene 0. 92 < 0. 05 0.28 Ethyl Benzer;>Y:: ::: 4 . 6 < 0. 05 1. 3 Xylenes :: ::' ' "" ' 12 < 0• . 05 16 Total Petroleum. ,z>t :::; Hydrocarbons 600 < 1. 0 78 Total Lead ::: 6. 8 < 1. 8 9. 9 Samples were analyzed::::fir:::: EX in a.c4iar5aAc with SW-846 Method 8020 and for TPH by Yc: :;:fi.ed 80.1r: ::::t j.rigpuzge and trap techniques which can only det. gas:o1ine:: : hod 5030) . l:i s:::re .o tez4::on ari s Note - BTEX and TPH resu te.ceived basis. SURROGATE RECOZ R :::. Lab Sample No. I 2 :;:3:: ':; 4 • BTEX - trifluorotoluene 161* I .8; ":::'::::::;• 90 WTPH-G-trifluorotoluene 175* I ::: 4:1: :: :••• 97 f *High surrogate recovery due to matri :•:xriter} Brice. SC3tND LYTICAL SERVICES C. Y Z This report is issued solely for Ibe use of the person or company to whom ii is addressed.This laboratory aazpts responsibility only for the due performance of analysis in accordance with ndustry acceptable practice.In no event.hall Sewnd nnsMirtl Gn•itrc Int n.i a. t+.v•a�`^..a.v+nail 1-r .. a :+t •• ---��.---- •.•—• .-.--•_._...__.._. s SOUND - ' ANALYTICAL SERV"^'ES, INC. E.CIALIZfl G IN LNDUSTRIAL 8 TOXIC WASTE ANALYSIS 4313C.}t Oi7►Y EAST. TACOMA.V ASHINGTO:N 9E424•TELEPHONE(206)922 JI0•FAX(206)922•5047 4-r4' �'"~`'' ` "`":• UALITY CONTROL REPORT ~•":' DUPLICATES ;L33 :... :`"::'•17946 ::• • Client ID: B-3 ,S-2 • •Date:::::: •" June.:::7: : • 9 3 Matrix: soil Client: Ri;ttet b :ce Zeman Units: mg/kg COMPOZi'40.::: : •. f SAMPLE (S) DUPLICATE (D) RPD* Metliy:lene c :ot:g e: •.: :.. .. ' < 0. 10 < 0. 10 --- 1, 1-dichlQt©ia.hYl4 . ' ' < 0. 05 < 0. 05 --- 1, 1-dichJorb'Othane.' < 0. 05 < 0. 05 --- 1, 2-tran5oichloroethy.le•n• < 0. 05 < 0. 05 --- 1, 2-dich1prDethane ::0. 05 < 0. 05 --- 1, 1, 1-tri�`l�iloroe •2iai e:: :.< ::0 05 < 0. 05 --- Carbon Tetras j yc3e ::: :~ "*" . < :G..05 < 0. 05 --- 1, 2-dichlorri rapatye :.:: :••. ::.. : < i'05 < 0. 05 --- Trans-1,3-di:c'.ilot&p#at01 r. 05 < 0. 05 --- Trichloroethy. ie ::.! 0. 05 < 0. 05 --- Cis-1, 3-dichloroprope 0. 05 < 0. 05 --- 1, 1, 2-trichloroethane: ::< 0. 05 ::•• < 0. 05 --- Tetrachloroethyler•e ::. .: " :: < 0. (Z5::: `•:::: • < 0. 05 --- < ..Q: . 1, 1, 2, 2-tetrachld rail• 'S.":::::::::::::::: < 0. 05 --- Bromoform <: :: ►:3::f :. -.: :•• < 0. 10 --- Chlorobenzene ..-..4:• 05' • •< 0. 05 --- 1, 2 Dichlorobenzene ::::cL05 :::< 0. 05 --- 1, 3 Dichlorobenzene .:`<::`(} �O5.• '....::::..... 0. 05 --- 1, 4 Dichlorobenzene < •Q :i :$:::., `:< ::•i). 05 --- .:r:' Total Petroleum Hydrocarbons 2l 9 . 1 *RPD = Relative Percent Difference = [ (S - D) / ( (S + D) / 2] x 100 • ^port is issued solely for the use of the person or company to whom it is addressed.This laboratory accepts responsibility only for the due performance of analysis in accordance with vrr taldr r.rnni.r In nn.�•.•nt.,,tl[n..n.l n n.�n:..t C.•n•:r.a Inn n.........nlm•.•.••ti............:�.t..(...�nn.nn.........1 n .......I w..- .....t.:...,....._........._. ... . _ -- -- - ---:- SOUND.-, •.-s.NTALYTICAL SERVT /(77,S INC.. ..--. ...::::::::••••• ..S. : IALIZING IN INDUSTRIAL&TOXIC WASTE ANALYSIS 41SR:Pi..4*.iii .TEAST. TACOMA.WASHLNIGTON 98424-TELEPHONE(206)922-2310-FAX(206)922-5047 :: : ::: .:: :: • Z • : :"4: :: -::::•::::••:::-Z. ..z.: : :: :: :: .:::::::::::::::::•::: ,:::.---:S:::::::::::: :-. • -.......::::,.... "..:-.•••••::•••:::••• • ,::-.:::-..›..3"."-:::::::::-... z.....::::Szz.::: QUALITY CONTROL REPORT .:••••••••••••:•••••••• .................z_.............. ........z.::::::::::::::::::::: DUPLICATES .."::::::..▪ ..:::: :::::::::::*:$::::::::::'$.'. „..:::.• • :::::::::::::: :::: :: :7946 .....„:..„:„. Client ID: B-2,S-1 ••••••••• •••. ••••••••••::::4:<:** Jun ./.7:44:::0$1, Matrix: soil ... .. ••• ... .„..... . ••.••• Client: Ri.t0i!itibjt2S701Z. man Units: mg/kg .„::::: :::.:*:::::::S:::::.::: ::::i:$:::.:::::::::::•• . ....._.::•:•: : : : :•::::::::. ..::::.::::-:::::::::- comF.:p.zT#p:::-.......z..........:-..-4-.............-... -...-............................... SAMPLE (S) DUPLICATE (D) I RPD* **•• •::::::::::::•••:::.•::.:** ••••:::••:::.::::•••::i:::.. ..•:::::••::•••::•••:::•• Leia••••••:::•••• ........:•••:•••::•••:•••: ••::••: •::••:• : 9 . 9 10 I 1. 0 •:. .: .: .:- ...- •.:-,:t- .: .. - •.: •-:- Benzene ..: , - .-...--..--*. 0. 17 0. 17 0 Toluene 0. 28 0.27 3 . 6 ................... Ethyl BelO.P70 .„ ... ••• •. .• ..• .. .. 1.3 1. 3 0 „........„.... Xylenes -:::.::::::: ...„::: ::::::::......„.:......-::.-:-:::- 16 16 0 ....:::•.::::: : : ::•::.• :..••:•••::••••:::- -::::::. .....::::::::::::::::::::::::::::::::::•.:•24::•.:::••••••;::::•.:...... . Surrogate Recp.7.T*57::::.::::::::::::::::i::::.''z''''':::::.::::::::::::::::::::.. BTEX-trifluo.ep...tigti *..::::.::•• -i:::::::• 90 88 '......::..:........................................... ';....-:::."::."•:.."*. - • ••• ..... •:::••:::•••:::••:::.: Total Petroldll'uel.-:::: ::•:.,::::::4:4:::-::.: Hydrocarbons .4:::<:-.4...›....-..----:- 78 70 10. 8 -...::4Z • . ., •.. •.. ••„ •.. •.. ••. • Surrogate Recoverys:i::::::::::::::4:::,...‹:.-- • „-.....Z.....4: 7PHG-trillr :6 -•. •• ••• t.• : . i •:..„.!. ::.;:::::::::::::::•:9.: i: ;.::::::: ............ ...........49.74.6 * PD : Rela:iveP :; t= [ (S - D) / ( (S + D) : 1: 3 * ° .: :.::.:§i§iii.::-:::• ••:::••:::••:::••:::••:::••:•.•••-•••:::••:::••:::••:::•••. :::•••::•••:::••:::••::. ":::::::•:-' •::::::::::::::::::::::::. -:::::::::::::::7::- ••. •••••••.••••••••.. ••••••- •-••••••.-.... ..• -•:::•::::•::::•::::•::: ••,•:::••:::••::;••:::•:-... :::••:::•:::::••::•••:-.. ...:::••:::••:::••:::••:::. ..:•:::•::::::::::::::::::::::::::„ ••:•••••:-•::-:::-:::•::::::•::•::::.:- ::::•:::::••:••• .44.s.....$4::::::::::: :::::-... ..::::::::::::::::::•:::-.• ..:$:.4.:$:::- . ••••••• ''.::::7•:' • This report is issued solely for the use of the person or company to whom it is addressed.This laboratory accepts responsibility only(or the due performance of analysis in accordance with nJustry acceptable practice.In no rvent shall Sound Analytic:11 Sentires.Inc.nr its emninvert 1-..uKre•ntihln for ennuw.nitrMiNi or.......-t-.1 rt.....,......t-....It...1 n.;.......,—..,"....