Final Explanation of Significant Difference (ESD) IRP Sites 1,2, and … · 2020-07-08 · Draft...

"•*«88020430

SFUND RECORDS CTR

0229-02306

FinalExplanation of Significant

Difference (ESD)IRP Sites 1,2, and 3

Remedial Action

Prepared by:

Air Fprce Plant 44Tucson International Airport Area Superfund Site

Tucson, Arizona

May 2000

EARTH TECH, INC.5575 DTC Parkway, Suite 200Englewood, Colorado 80111

Prepared for:

UNITED STATES AIR FORCEAERONAUTICAL SYSTEMS CENTER

Acquisition Environmental, Safety and Health DivisionEngineering Directorate

Wright-Patterson AFB, Ohio 45433

RaytheonRAYTHEON SYSTEMS COMPANY

Environmental Health and Safety1151 E. Hermans Road, Bldg. 826

Tucson, Arizona 85706

5 5 7 5 D T C P a r k w a y , S u i t e 2 on. E n g l e w o o d , C o l o r a d o 8 0 1 1 1 - 3 0 1 6

May 11,2000

Mr. John KorhonenRaytheon Systems Company1151 East Hermans Road, Bldg. 826Tucson, AZ 85734-1337

Subject: Final Explanation of Significant Difference for IRP Sites 1, 2, and 3Remedial Action

Reference: Raytheon Contract No. 6-968394-S-W9

Dear John:

Enclosed are two copies of the Final Explanation of Significant Difference (ESD) for IRPSites 1, 2, and 3 Remedial Action at Air Force Plant 44 in Tucson, Arizona. Informationpresented in this document supports updating the total petroleum hydrocarbon (TPH) T e l e p h o n ecleanup standard to be consistent with present Arizona Department of Environmental Quality(ADEQ) Soil Remediation Levels (SRLs). Responses to comments received (on both the 3 0 3 . 6 9 4 - 6 6 6 0Draft Final and the Interim Final) from Sean Hogan, U.S. Environmental Protection Agency,and from Bill Ellett, ADEQ, are included in a Responsiveness Summary presented as F a c s i m i l eAppendix A. 3 0 3 . 6 9 4 . 4 4 1 0In accordance with CERCLA Section 117(c) and the National Contingency Plan (NCP) at40CFR 300.435(c)(2)(I), release of the ESD for public comment will be announced in amajor Tucson newspaper through a U.S. Air Force Press Release. In addition, a copy of thedocument is being submitted to the TCE Superfund Information Library in Tucson andincluded in the site administrative record.

This report will be distributed as follows:

John Korhonen, Raytheon Systems Company - 2 copiesDennis Scott, Aeronautical Systems Center - 2 copiesJohn McCown, Air Force Center for Environmental Excellence - 1 copySean Hogan, U.S. Environmental Protection Agency - 1 copyBill Ellett, Arizona Department of Environmental Quality - 1 copyCraig Kafura, Arizona Department of Environmental Quality - 1 copyGayle Wilier, TCE Superfund Information Library - 1 copy

Please do not hesitate to call me if you need additional information.

Sincerely,Earth Tech, Inc.

William H. DiGuiseppi, P.G.Senior Hydrogeologist

cc: 26636.01 File

L:\WORK\26636\Wark\Proiluci\ESD\FmalESDleuer.doc

E A R T H SSI T E C H

A tl/CO INTERNATIONAL LTD. COMPANY

FINALExplanationof

§gffirar^tii:fference' ^T,& 3 J§me§a[Ac±ioii

Air Force Plant 44Tucson, Arizona

Prepared by:Earth Tech, Inc.5575 DTC Parkway, Suite 200Englewood, Colorado 80111

Prepared for:United States Air ForceAeronautical Systems CenterAcquisition Environmental, Safety and Health Division,Engineering DirectorateWright-Patterson Air Force Base, Ohio 45433

Raytheon Systems CompanyEnvironmental Health and Safety1151 E. Hermans Road, Bldg. 826Tucson, Arizona 85706

May 2000

Table of Contents

1.0 INTRODUCTION 1-1

1.1 STATEMENT OF BASIS AND PURPOSE 1-31.2 AIR FORCE PLANT 44 HISTORY AND BACKGROUND 1-41.3 SITE INVESTIGATION AND ENFORCEMENT ACTIVITIES 1-51.4 SELECTED REMEDY FOR SITES 1,2, & 3 1-61.5 STATUTORY DETERMINATION 1-7

2.0 POST-ROD ACTIVITIES 2-1

3.0 DESCRIPTION OF REQUESTED VARIANCE FROM ROD 3-1

4.0 REFERENCES 4-1

List of Tables

Table Title1 Original and Revised Chemical Specific ARARs and TBCs

List of Figures

Figure Title

1 IRP Site Location Map

List of Appendices

Appendix TitleA Responsiveness Summary

List of Attachments

Attachment Title

1 Site 1 Post-Remedial Soil Boring Results

Final Explanation of Significant Difference for Sites 1,2, & 3- May 2000 Page i

L:\WORK\26636\Work\Product\ESD\Site 1 ESD Fnl.doc

List of Acronyms & Abbreviations

1,1,1-TCA 1,1,1-TrichloroethaneAAC Arizona Administrative CodeADEQ Arizona Department of Environmental QualityADHS Arizona Department of Health ServicesAFP 44 Air Force Plant 44ARAR Applicable or Relevant and Appropriate RequirementCERCLA Comprehensive Environmental Response, Compensation, and Liability ActDCE DichloroethyleneESD Explanation of Significant DifferenceFACO Final Assembly and CheckoutFS Feasibility StudyGAG Granular-activated CarbonHBGL Health-Based Guidance LevelsIRP Installation Restoration ProgramMCL Maximum Contaminant Levelmg/kg Milligram per kilogramNCP National Oil and Hazardous Substances Pollution Contingency PlanNPL National Priorities ListPCE PerchloroethyleneRCRA Resource Conservation and Recovery ActRl Remedial InvestigationROD Record of DecisionSARA Superfund Amendments and Reauthorization ActSRL Soil Remediation LevelSVE Soil Vapor ExtractionTBC To-be-consideredTCE TrichloroetheneTPH Total Petroleum HydrocarbonUSEPA U.S. Environmental Protection AgencyLIST Underground Storage TankVEMUR Voluntary Environmental Mitigation Use RestrictionVOC Volatile Organic Compoundyd3 cubic yard

Final Explanation of Significant Difference for Sites 1,2, & 3- May 2000


Page

1.0 Introduction

Air Force Plant 44 (AFP 44) is located within the Tucson International Airport Area SuperfundSite, Tucson, Arizona, and is identified as such on the National Priorities List (NPL). Thepurpose of this Explanation of Significant Difference (ESD) is to provide information in supportof modifying the total petroleum hydrocarbon (TPH) standard presented in the April 1997 FinalSites 1, 2, and 3 Record of Decision (ROD) (Reference 1) to be consistent with the current Stateof Arizona cleanup standard.

Installation Restoration Program (IRP) Sites addressed in the April 1997 ROD (Reference 1),were:

Site 1: Ranch Site,Site 2: Final Assembly and Checkout (FACO) Landfill, andSite 3: Inactive Drainage Channel Disposal Pits.

Remedial actions at all three sites were implemented as non-time critical removal actions inJanuary 1996. This action allowed the cleanup described in the ROD to begin before finalsignatures were received from the U.S. Air Force, U.S. Environmental Protection Agency(USEPA), and the Arizona Department of Environmental Quality (ADEQ), which did not occuruntil two years following initiation of the remedial action.

Since the April 1997 ROD was drafted, State of Arizona TPH cleanup standards have changed.Therefore, the ROD is being modified to be consistent with current state cleanup standards.Cleanup standards for other contaminants do not appear to be relevant to ongoing clean up atSites 1, 2, and 3 because the TPH standard was the only contaminant identified as a chemical-specific applicable or relevant and appropriate requirement (ARAR) in the April 1997 ROD.Other contaminants are addressed in the narrative standard defined in the April 1997 ROD, asdiscussed in Section 2.0. This ESD does not change the selected remedy; it merely revises thecleanup criteria to match present Arizona Soil Remediation Levels (SRLs) for petroleumhydrocarbons, which are protective of human health and the environment (Reference 2).

The April 1997 ROD identified chemical-specific ARARs and "to-be-considered" (TBC) guidancefor TPH, which included Health-Based Guidance Levels (HBGLs) established as interimstandards by ADEQ and a TBC guidance limit from an Underground Storage Tank (UST)program newsletter. Given the same land use, the SRLs are more stringent than the HBGLs forTPH. One TBC criterion included in the April 1997 ROD was a cleanup level for TPH in soils of100 milligrams per kilogram (mg/kg). This value was not health-based and may have beenintended to prevent nuisance odors from TPH-contaminated soils present at the ground surface.TBCs are not legally binding; however, they are used within the context of the assessment andcontrol of site risks.

The ESD defined herein applies to the April 1997 ROD-defined standard for TPH at Sites 1, 2,and 3. Site 1, 2, and 3 locations in reference to the AFP 44 facility are illustrated on Figure 1.Information related to Site 1 cleanup activities is presented herein for illustrative purposes.

Final Explanation of Significant Difference for Sites 1,2, & 3- May 2000 Page 1 -1

U\WORKa6B36WorWmluct\ESD\Site 1 ESD Fnl.doc

sI•5&2s3

£

QCQITDD

HUGHES ACCESS ROAD

SITE 1

SITE 2

SITE 3

SITE 4

SITE 5

SITE 6

SITE 7

SITE 8

SITE 9

SITE 14

SITE 15

SITE 16

I I I I I I I I

LEGEND

RANCH SITE

FACO LANDFILL

INACTIVE DRAINAGE CHANNELDISPOSAL PITS

UNLINED SURFACE IMPOUNDMENTS

SLUDGE DRYING BEDS

DRAINAGE DITCH AND CHANNELS

NORTH FACO FIRE TRAINING AREA

SOUTH FACO FIRE TRAINING AREA

EXPLOSIVES DETONATION PIT

SHALLOW GROUNDWATER ZONE (SGZ)

POTENTIAL TRENCH SITE

BACKGROUND SITE

SITE 6 DRAINAGE DITCHAND CHANNELS

PROPERTY LINE

FENCE

RAILROAD

ROADWAY

ANorth

0 500 1000

SCALE IN FEET

E A R T H T E C H FIGURE 1

IRP Site Location Map

1.1 Statement of Basis and Purpose

This ESD presents a variance from the TPH cleanup standard for the selected remedial actionfor Sites 1, 2, and 3 at AFP 44, Tucson, Arizona, to be consistent with State of Arizona SRLs asadopted December 4, 1997 (Arizona Administrative Code, Title 18, Chapter 7, Article 2,Appendix A). The TPH standard was originally outlined in the April 1997 Sites 1, 2, and 3 ROD(Reference 1). Table 1 outlines both the original and revised chemical-specific ARARs for TPH.This ESD does not alter the original remedy, which was chosen in accordance with theComprehensive Environmental Response, Compensation, and Liability Act (CERCLA) asamended by Superfund Amendments and Reauthorization Act (SARA) and the National Oil andHazardous Substances Pollution Contingency Plan (NCP). This ESD is based on and willbecome a part of the AFP 44 Administrative Record. It will be available for public review in theInformation Repository located at:

TCE Superfund LibraryEl Pueblo Neighborhood CenterBuilding B-2101 West IrvingtonTucson, Arizona 85714-3099(520) 889-9194

A Draft Final ESD was submitted to USEPA and ADEQ in December 1999 and an Interim Finalwas submitted to USEPA and ADEQ in March 2000. Responses to comments received fromthe agencies are presented in Appendix A. The ESD submittal will be announced to thecommunity by publication in a major local newspaper of general circulation in accordance withCERCLA Section 117.

Table 1Original and Revised Chemical Specific ARARs and TBCs

Analyte

TPH

Original ARARs Presented in RODADEQ Soil HBGL(1)

mg/kg

Non-residential

24,500

Residential

7,000

USEPAProposed

RCRACorrective

Action Level<2)

None

Other(3)

mg/kg

100

Revised ARARsADEQ

Mg

Non-residential

18,000

SRL(4)

/kg

Residential

4,100

ADEQ Soil HBGL, ADEQ "Human Health-Based Guidance Levels for Contaminants in Drinking Water and Soil," ArizonaAdministrative Code, Title 18, Chapter 7, Article 2, Interim Soil Remediation Standards.USEPA Proposed RCRA Corrective Action Level, proposed concentrations that trigger action (40 CFR 264.521 (a)(2)(i-vi)).Underground Storage Tank News, ADEQ, Volume 1, Number 1, Summer 1992.ADEQ SRL, ADEQ, Arizona Administrative Code, Title 18, Chapter 7, Article 2, Appendix A.

Final Explanation of Significant Difference for Sites 1,2, & 3- May 2000


Page 1-3

1.2 Air Force Plant 44 History and Background

AFP 44 was first constructed in 1951 for the purpose of manufacturing Falcon air-to-air missiles.Over the years, industrial facilities have been constructed to support several other missilesystems. At present, industrial facilities occupy a total building area exceeding 2 million squarefeet.

AFP 44 is located on flat terrain at an approximate altitude of 2,600 feet above mean sea level.The plant is located 15 miles south of downtown Tucson and is bounded on the east by TucsonInternational Airport property. Nogales Highway (Route 89) lies west of the facility. The plant isbounded to the south by Hughes Access Road and on the west by Southern Pacific Railroad'sTucson-Nogales railroad spur. A service spur enters the plant from the north, and a temporaryspur was installed south of the former surface impoundments in support of a ResourceConservation and Recovery Act (RCRA) closure effort. The northern boundary of AFP 44 liesalong the north section line of Sections 29 and 30. Vacant land and light commercial property islocated to the south. The Santa Cruz River is located approximately 1.5 miles west of theplant's western boundary, flowing in a north-northwesterly direction and draining the TucsonBasin.

Other neighboring areas include the San Xavier Indian Reservation (west of Route 89), Davis-Monthan Air Force Base (approximately 3 miles northeast of the plant), Saguaro National Park(the eastern unit is approximately 10 miles to the northeast and the western unit isapproximately 15 miles to the northwest), and the Santa Rita Experimental Range (also knownas the Sahuarita Bombing and Gunnery Range). The range, located approximately 10 milessouth of AFP 44, has not been used since the 1950s.

Site 1 (Ranch Site) encompasses approximately 32 acres located along the southern boundaryof AFP 44 (Figure 1). From approximately 1952 to 1955, two unlined trenches located in thenorthern half of the site were used as a general disposal area. Additional disposal trencheswere identified during the Remedial Investigation (Rl) (Reference 3). The trenches were gradedand covered with native soil in 1955. Wastes known to have been disposed of in the Ranch Sitearea include machining coolants and lubricants, trichloroethene (TCE), methylene chloride,spent solvents (not otherwise specified), and paint sludges and thinners. The TPH source atSite 1 is not specifically known but is likely to have been buried drums of petroleum-basedcoolants and lubricants. Former septic tank leachfields are also located in the northern half ofSite 1. One tank and one leachfield were installed about 1954. The tank was removed fromservice, pumped out, and filled with sand in 1979 when a replacement tank was installed. Thisnew tank drained to two new leachfields. All septic systems were replaced in 1989 to 1990 by apiped system connected to a municipal wastewater treatment system. The newer septic tankwas pumped out and removed in February 1990, but the original tank was left in place(Reference 3).

Based on sampling results presented in the Rl (Reference 3) and subsequent attachments, thevolume of TPH-contaminated soil greater than 100 mg/kg at Site 1 prior to the remedial actionwas estimated to be greater than 8,000 cubic yards (yd3) with a maximum concentration of143,000 mg/kg. Recent sampling indicates that the soil volume present at Site 1 with TPHgreater than 100 mg/kg is 4,551 yd3. No Site 1 soil samples yielded concentrations greater thatthe Arizona non-residential SRL of 18,000 mg/kg. The soil volume estimated to have TPHconcentrations greater than the residential SRL is approximately 1,591 yd3 (see Attachment 1).



Site 2, the FACO Landfill, is located near the southeast corner of AFP 44 (Figure 1). This sitewas active from about 1955 until the late 1960s or early 1970s. Studies and excavations at this2.9-acre site indicate that wastes were placed in six to eight unlined trenches or pits 6 to 7 feetdeep, and that open burning occurred in the trenches (References 3 and 4).

Site 2 received liquid wastes consisting of flammable solvents; spent 1,1,1-TCA, TCE, andmethylene chloride; machine coolants and lubricants; paint sludges and thinners; andunidentified solvents and solids. Approximately 7,000 gallons of flammable liquids weredisposed at the site each week from 1955 through 1966. From 1955 until 1963, wasteflammable liquids were burned approximately four times per week, and solids were burnednightly. From approximately 1966 to 1972, TCE was reportedly sent for offsite reclamation ordisposal; TCE was reportedly used in small quantities only since 1972. All burning activities atthe FACO Landfill were permanently halted after 1963, although wastes continued to be placedin the landfill until the late 1960s or early 1970s. In 1980, a soil cover was placed over thelandfill and the area was seeded for vegetation. The TPH source at Site 2 is not specificallyknown but is likely to have been from releases from buried drums of petroleum-based coolantsand lubricants. The approximate volume of TPH-contaminated soil cannot be determined fromRl data because no soil sample was above 100 mg/kg.

Site 3, the Inactive Drainage Channel Disposal Pits, encompasses about 78 acres and islocated in the north-central portion of AFP 44 (Figure 1). Unlined excavated pits were used forsolvent disposal, and one area was used for liquid waste burial. The pits averaged 8 to 10 feetin diameter, received wastes from 1966 to 1977, and subsequently have been filled. Anexamination of aerial photographs suggests the number and size of the pits varied over time;the exact location of some disposal areas is unknown (Reference 3).

Wastes placed in the Site 3 disposal pits included 1,1,1-TCA, TCE, methylene chloride, othersolvents, and paint sludges and thinners. From approximately 1966 to 1972, TCE wasreportedly sent for offsite reclamation or disposal; TCE was reportedly used in small quantitiesonly since 1972 (Reference 1). The potential TPH source at Site 3 is not specifically known.The approximate volume of TPH-contaminated soil at Site 3 cannot be determined from Rl databecause only two of the 13 soil samples were above 100 mg/kg.

1.3 Site Investigation and Enforcement Activities

Manufacturing activities at AFP 44 precede the November 19, 1980, effective date of RCRA.Past disposal practices included industrial wastewater treatment, storage, and disposal; unlinedsurface impoundment use; and land disposal of general industrial wastewaters, spent solvents,and dilute and concentrated acids and alkalines.

In early 1981, the USEPA and the Arizona Department of Health Services (ADHS) identifiedcontaminants in the upper zone of the regional aquifer underlying areas around the TucsonInternational Airport. In response to this finding, the Air Force initiated extensive groundwaterinvestigations to determine if contamination existed under AFP 44 and, if so, to determine theextent of contamination. These investigations showed contamination was present. Agroundwater reclamation system was activated in 1987 and continues to operate under an April1986 ROD.

An Rl (Reference 3) of potential soil contamination at 10 historic waste management sites wasconducted in 1991, with supplemental fieldwork in 1993 and 1995. A risk assessment to identify



remediation sites was completed in 1993. A feasibility study (FS) (Reference 4) evaluatingpotential remedial alternatives for contaminated soils was completed in January 1995. Itspecifically addressed the cleanup of five sites to remove continuing sources of groundwatercontamination or to address potential human health and environmental risks.

The initial Rl report dated January 1992 and its addenda, the Risk Assessment report datedAugust 1993 (Reference 5), the FS report dated January 1995, the Proposed Plan(Reference 6), and the April 1997 Sites 1, 2, and 3 ROD are available for public review in theInformation Repository at the following location.

TCE Superfund LibraryEl Pueblo Neighborhood CenterBuilding B-2101 West IrvingtonTucson, Arizona 85714-3099(520)889-9194

This ESD will also be placed in the Administrative Record for AFP 44. Comments on this ESDshould be directed to the AFP 44 Integrated Product Team Chief at the following address.

Mr. Dennis ScottChief, AFP 44 Integrated Product TeamASC/ENV(44)1801 Tenth Street, 2nd FloorWright-Patterson AFB, Ohio 45433-7626Telephone: 1-800-982-7248, extension 418

The ESD submittal will be announced to the community by publication in a major localnewspaper of general circulation in accordance with CERCLA Section 117. The press releasewill include instructions for reviewing and commenting on the document.

1.4 Selected Remedy for Sites 1, 2, & 3

This section describes the remedial systems for volatile organic compound (VOC) removal fromvadose zone soils at Sites 1, 2, and 3. Based on RI/FS findings, soil vapor extraction (SVE)with resin adsorption was initially selected as the remedy for Sites 1, 2, and 3. Data collectedduring the first phase of SVE well installation at Site 1 indicated that the extent and magnitudeof VOC-contaminated soil was much less than anticipated. Based on this information, theremedy was changed to include granular activated carbon (GAC) for vapor treatment at Site 1.The April 1997 ROD identified the selected remedies as SVE with GAC adsorption for Site 1and SVE with resin adsorption for Sites 2 and 3. Again, based on revised estimates ofcontaminated soil volume made during system installation, SVE with GAC was ultimatelyselected as the remedy for Site 3. At Site 2, the SVE with resin adsorption system experiencedchronic mechanical problems, which made the system ineffective. For this reason, as well asthe reduced VOC emissions at Site 2 after the first two years of operation, the resin adsorptionvapor treatment system was replaced with GAC in 1998. The following paragraphs describe theSVE systems as originally designed for Sites 1, 2, and 3. The current operating status ofSites 1, 2, and 3, as well as the remedial accomplishments, are outlined in Section 2.0.


L:\WORKU6636\Work\Product\ESD\Site 1 ESD Fnl.doc

The SVE with GAC system was designed to address VOCs present in the vadose zone, whichwere determined during the risk assessment to be the contaminants of greatest concern. SVEremoves the contaminants by withdrawing air at extraction wells, which induces airflow from thesubsurface. The withdrawn air is laden with volatilized contaminants, which are captured fromthe air stream by adsorption onto GAC. The vapor movement and oxygenation of the soil profilewas also anticipated to result in significant reductions in TPH levels at Site 1. Project durationfor soil remediation at Site 1 was estimated to be approximately two years and at Site 3approximately four years. As stated elsewhere in this report, the Site 1 SVE system wasoperated for approximately one year and removed more than 5,000 pounds of VOC, dominantlyTCE. The Site 3 system is still operating after three years; it has removed an estimated10,700 pounds of TCE.

The quantity of TPH removed from Site 1 cannot be determined because petroleumhydrocarbons were not part of the ongoing monitoring program during system operations.Based on the estimated initial volume of TPH-contaminated soil greater than 100 mg/kgpresented above (more than 8,000 yd3) and the current estimated volume of TPH-contaminatedsoil greater than 100 mg/kg (4,551 yd3), the estimated volume reduction for TPH-contaminatedsoil is approximately 50 percent. However, considering the previous maximum TPH level of143,000 mg/kg, the most recent maximum value of 13,500 mg/kg represents a reduction ofgreater than 90 percent. Because no recent sampling data are available for Site 3, the presentvolume of TPH-contaminated soil at Site 3 cannot be estimated.

The Site 2 SVE system was designed to remove contaminated vapors as described above forSites 1 and 3. However, rather than GAC for vapor treatment, the withdrawn air is capturedfrom the air stream by adsorption onto a proprietary resin. The use of carbon as an adsorptionmedium is permitted in the ROD at the operator's discretion depending on life cycle costanalysis and funds availability. A VOC detector installed downstream of the adsorptive mediummonitors vapors in the treated air; it automatically shuts down the system if vaporconcentrations exceed the Pima County standard. Treated air is then discharged to theatmosphere. The resin adsorption vapor treatment system is capable of onsite regeneration(desorption). The system consists of parallel sets of resin beds that automatically cyclebetween adsorption and desorption (regeneration). While one set of beds adsorbs vapors, theother set desorbs. Desorption is performed by a combination of heat and pressure, which driveVOCs off the resin. Nitrogen is introduced as a carrier gas to move the vapors to a condenserwhere the VOCs are recovered as a highly concentrated liquid. The liquid is pumped intoexternal storage tanks equipped with automatic level sensors. The primary disposal method forthe recovered liquids is offsite incineration at a RCRA permitted facility. Other options, such asoffsite redistillation and reuse, may be pursued. Unlike catalytic oxidation, no flame or auxiliaryfuel is required to operate the PADRE™ system, a major safety advantage for Site 2 at AFP 44.Similar to Site 1, the vapor movement and oxygenation of the soil profile was anticipated toresult in significant reductions in TPH levels at Site 2. Project duration for VOC remediation atSite 2 was anticipated to be approximately seven years. The SVE system at Site 2 is stilloperating after three years, and has removed 75,200 pounds of TCE. Because no recentsampling data are available at Site 2, the present volume of TPH-contaminated soil at Site 2cannot be estimated.

1.5 Statutory Determination

This ESD does not change the selected remedy; it merely revises the cleanup criteria to matchpresent State of Arizona SRLs for petroleum hydrocarbons (Reference 2). Therefore, the


L:\WORK\26636Work\Product\ESD\Site 1 ESD Fnl.doc

selected remedy is protective of human health and the environment, complies with federal andstate requirements legally applicable or relevant and appropriate to the remedial action, and iscost effective. The selected remedy uses permanent solutions to the maximum extentpracticable, and satisfies the statutory preference for remedies that employ treatment thatreduces toxicity, mobility, or volume as a principal element in accordance with Section 121 ofCERCLA. A five-year ROD review will be conducted to ensure that protection of human healthand the environment continues to be achieved.

Final Explanation of Significant Difference for Sites 1,2, & 3- May 2000 page

L:WORKU6636\Work\Product\ESD\Site 1 ESD Fnl.doc

2.0 Post-ROD Activities

This ESD was prepared to respond to additional data collection and observation that occurredas part of executing the remedy defined in the April 1997 ROD. The following brief summary ofpost-ROD remedial and data collection activities at Site 1 is provided to support revising theTPH soil cleanup standard to match the Arizona SRLs.

Both TCE and dichloroethylene (DCE) were originally identified as major contaminants ofconcern at Site 1 and were identified in the risk assessment as requiring remedial action toreduce or eliminate potential impacts to groundwater beneath the site. The remedial methoddescribed in Section 1.4 was designed to address the elevated levels of VOCs present in thevadose zone while simultaneously aerating the soil and stimulating biodegradation. It wasanticipated that this enhanced aeration and bioactivity would lead to a reduction of TPH levels.Risks related to petroleum hydrocarbons were not evaluated in the Risk Assessment(Reference 5). Petroleum hydrocarbons found at Sites 1, 2, and 3 are relatively immobile and,therefore, do not pose a risk to groundwater. Based on this information, remedial action at allthree sites focused on VOC removal.

The Site 1 SVE/GAC system was installed in the spring of 1996, and operated from July 1996through August 1997. The system removed more than 5,000 pounds of VOCs before achievingthe narrative standard for VOCs defined in the April 1997 ROD. In executing that standard, avadose zone transport model (T2VOC) was used to define trigger values, below which theresidual VOCs in soil would not cause groundwater contamination in excess of the maximumcontaminant level (MCL) for TCE. Because TCE was the most prevalent contaminant at triesite, it was assumed that TCE removal to levels below the trigger value would result in reductionof the other VOCs present to levels below standards. This has proven to be the case with theVOCs. The preliminary trigger value for Site 1 was determined to be 9 ug/l TCE in vapor.

In accordance with the April 1997 ROD and the Sites 1, 2, and 3 Operations and MaintenanceManual (Reference 7), the Site 1 system was shut down and all vapor monitoring wells sampledfor four consecutive quarters. After evaluating the data, it was concluded that no rebound hadoccurred and final confirmation sampling in a centrally located soil boring should be conducted.Vapor screening of soil samples from this boring revealed slightly elevated VOC levels as wellas elevated TPH levels. Additional soil borings were advanced in the vicinity of the first soilboring. This phased soil boring program at Site 1 is detailed in Attachment I of this ESD.Supplementary vapor extraction wells were installed at several of the soil boring locations withelevated VOCs and additional monitoring and/or extraction was conducted. After anapproximately 90-day operational period, the contaminant levels in these wells again werereduced to below the model-derived trigger values, and confirmation sampling indicated norebound. Based on modeling results and analytical findings, the remedial action for VOCs atSite 1 is considered to be complete in accordance with the April 1997 ROD. A Site 1 RemedialAction Completion Report detailing the remedial accomplishments and confirmation sampling isbeing prepared and anticipated to be complete in the spring of 2000.

In addition to VOCs, TPH was identified in the April 1997 ROD as being of concern at Site 1 dueto the discovery and removal of buried drums of lubricating and hydraulic oils during the Rl. Soilsamples collected following the drum removals indicated elevated TPH levels up to143,000 mg/kg in shallow soils (Reference 3). Although the selected remedy (SVE) wasdesigned to remove VOCs from the soil, it was considered to be a viable technology to reduce

Final Explanation of Significant Difference for Sites 1,2, & 3- May 2000 Page 2-1


TPH levels through direct extraction and enhanced biological destruction as a result ofincreased oxygen levels in the vadose zone. In addition, it was assumed that naturalattenuation processes would assist the SVE system in reducing TPH levels in Site 1 soils.Furthermore, TPH constituents were determined to be relatively immobile and, therefore, to notpose a threat to groundwater beneath the site.

Recent sampling and analysis (see Attachment I) demonstrates that the SVE system andnatural attenuation did substantially reduce TPH concentrations from the pre-remedial levels.The current maximum TPH concentration at Site 1 is 13,500 mg/kg; this concentration is foundat an isolated point. Elevated TPH values are present only within a limited vertical andhorizontal area. The groundwater beneath and immediately downgradient of Site 1 shows noimpacts from petroleum hydrocarbons.

Additional post-ROD activities occurred at Sites 2 and 3. The Site 2 and 3 SVE systems wereinstalled and operated concurrently with the Site 1 system, starting in March 1996. The Site 2system operated sporadically due to vapor treatment hardware (e.g., PADRE™ units) failures,from 1996 through the present. Site 2 operations are ongoing, with 18 of the original 219 wellstrings presently operating. Of these, 17 well strings still yield vapor concentrations above theT2VOC-derived trigger value. Presently, vapor treatment is achieved through GAC. As ofFebruary 1, 2000, approximately 75,200 pounds of VOCs were removed from Site 2. It isexpected that the remaining SVE wells will fall below the trigger value during the year 2000.Site 3 SVE activities were conducted starting in March 1996 and are presently ongoing.Elevated and increasing VOC levels in SVE wells on the perimeter of the remedial area requiredthe installation of addition SVE wells in 1999 and early 2000. As of February 1, 2000, the Site 3SVE system has removed approximately 10,700 pounds of VOCs. An estimated completiondate for Site 3 has not been determined.


L:\WORK\2663B\Wori(\Proclucl\ESD\Site 1 ESD Fnl.doc

3.0 Description of Requested Variance from ROD

The April 1997 ROD identified chemical-specific ARARs and TBC guidance for TPH, whichincluded the HBGLs established as interim standards by ADEQ and a guidance limit from anUnderground Storage Tank (UST) program newsletter. The HBGLs presented in the April 1997ROD for TPH are 7,000 mg/kg for residential soils and 24,500 mg/kg for non-residential soils.Although the ADEQ HBGLs were presented in the April 1997 ROD, they were consideredinterim guidance at the time the ROD was prepared. Use of the non-residential HBGLs isallowed if a voluntary environmental mitigation use restriction (VEMUR) is filed with the countyrecorder.

In addition to ARARs, Earth Tech reviewed federal, state, and local criteria, advisories, orguidance that also may apply to the conditions found at the site. These TBCs are not legallybinding; however, they are used within the context of the assessment and control of site risks.One such TBC criteria included in the April 1997 ROD was a clean-up level for TPH in soils of100 mg/kg cited in the UST News, Arizona Department of Environmental Quality, Volume 1,Number 1, Summer 1992. This value was not health-based and may have been intended toprevent nuisance odors from TPH-contaminated soils present at the ground surface.

Since the time that the April 1997 ROD was prepared, the State of Arizona promulgated SRLs(Arizona Administrative Code, Title 18, Chapter 7, Article 2, Appendix A - Soil RemediationLevels (SRLS) adopted December 4, 1997) which are enforceable standards. The SRL forpetroleum hydrocarbons (C10 to C32) is 4,100 mg/kg for residential soils and 18,000 mg/kg fornon-residential soils. In light of this regulatory change, it is appropriate to redefine the April1997 Sites 1, 2, & 3 ROD cleanup standard for TPH to be consistent with present Arizona Stateregulations, as well as present and future non-residential land use. In support of selection ofnon-residential clean up standards, the US EPA received a written commitment from the AirForce that:

"...as long as the federal government owns AFP44 the property will be used fornon-residential purposes. The Air Force will place a deed restriction upon AFP44when the property is sold or transferred per General Service Agency (GSA)direction that no federal agency shall place deed restrictions upon U.S.government owned property until the time of sale or transfer (Reference 8)."

This documented commitment to implement institutional controls if the land use changes,verifies that the site is and will remain non-residential into the foreseeable future, making theuse of non-residential cleanup standards appropriate. Using the non-residential SRL (18,000mg/kg) for the enforceable soil cleanup standard for TPH, the remedial method offers continuedprotection, in accordance with CERCLA Section 121.

As per Arizona Administrative Code, Title 18, Chapter 7, Article 2, the VEMUR form, provided inthe regulations, must be signed by the real property owner and submitted with a request for aLetter of Completion from ADEQ, which includes:

• A description of the actual activities, techniques, and technologies used to remediatesoil at the site, including the legal mechanism in place to ensure that any institutionaland engineering controls are maintained,

• Documentation that SRLs have been achieved,



• Ecological risk assessment documentation (not required at Site 1),• Soil sampling analytical results, which are representative of the area which has been

remediated, including documentation that the laboratory analysis of the samples hasbeen performed by a laboratory licensed by ADHS, and

• A statement signed by the person conducting the remediation certifying the following:"I certify under penalty of law that this document and all attachments are, to the best ofmy knowledge and belief, true, accurate, and complete. I am aware that there aresignificant penalties for submitting false information, including the possibility of a fineand imprisonment for knowing violations."

These requirements will be incorporated into the Site 1 Remedial Action Completion Report,which is in preparation at this time and will be submitted for review during 2000.


L:\WORK\2B63S\Work\Protluct\ESD\Site 1 ESD Fnl.doc

4.0 References

1. Earth Tech, Inc. Final Record of Decision for Soil Cleanup of Sites 1, 2, and 3, Air ForcePlant 44, Tucson, AZ. April 1997.

2. Arizona Administrative Code, Title 18, Chapter 7, Article 2, Appendix A - Soil RemediationLevels (SRLS) adopted December 4, 1997.

3. Earth Technology Corporation. Remedial Investigation Report, U.S. Air Force Plant 44,Tucson, Arizona. January 1994.

4. The Earth Technology Corporation. Feasibility Study Report, U.S. Air Force Plant 44,Tucson, Arizona. January 1995

5. The Earth Technology Corporation. Risk Assessment Report, Air Force Plant 44, Tucson,Arizona, August 1993.

6. Earth Tech, Inc. Proposed Plan for Soil Cleanup, Air Force Plant 44, Tucson, Arizona.November 1995.

7. Earth Tech, Inc. Operation and Maintenance Manual for Soil Vapor Extraction System(Final), Air Force Plant 44, Tucson, Arizona. January 1998.

8. US Air Force Aeronautical Systems Center/ENV. Letter from Dennis Scott, ASC/ENV, toSean Hogan, US EPA, regarding EPA comments on the Explanation of SignificantDifference (ESD) for Sites 1, 2, and 3, Remedial Action at Air Force Plant (AFP) 44,Tucson, AZ. April 27, 2000.


L:\WORK\26636Wori\\Proctuct\ESD\Site 1 ESD Fnl.doc

Appendix AResponsiveness Summary

Interim Final Explanation of Significant Difference for Sites 1, 2, & 3- March 2000

L:\WORK\26636\Work\Product\ESD\Sits 1 ESD Fnl.doc

Appendix AResponsiveness Summary

Comments on the Draft Final Explanation of Significant Differencereceived from Sean Hogan, US EPA

February 14, 2000

Comment 1 - Section 1.0. Page 1-1: The first sentence of this section should state the purposeof the ESD and which AFP 44 ROD is being modified. Also, in addition to statingwhen the ROD was signed, the date which appears on the cover should be givenand consistently used when referencing the Sites 1, 2, and 3 ROD.

The third sentence of the first paragraph should clarify that the remedial action at allthree sites was implemented as non-time critical removal actions which allowedcleanup to begin in January 1996, which was approximately two years before theROD was signed. The [sic] should conclude the first paragraph.

The summarized explanation for modifying the ROD should simply state that, sincethe ROD was signed in 1998, the Arizona State cleanup standards for TPH havechanged and, therefore, the ROD is being modified to be consistent with the currentState cleanup standards. The summarized explanation should also state whetherthe cleanup standards for other contaminants as Sites 1, 2, and 3 have changed andif so, why the ESD is not also addressing those contaminants. Also, it is important toclarify the basis of the original TPH cleanup level in terms of protectiveness andstate whether the new cleanup level is equally protective assuming the same landuse scenario.

The reason that EPA supports changing the cleanup level for TPH is not because itwas found to exceed the original cleanup standard of 100 mg/kg, so this statementshould be deleted from the text.

Response - Section 1.0 has been revised as requested.

Comment 2 - Section 1.1. Page 1-1: The first sentence of this section should specify that theESD presents a variance from the cleanup standard for TPH. This section shouldalso specifically reference Arizona's Soil Remediation Standards Rule, including thedate that it was enacted, which provides the basis for modifying the cleanup standardfor TPH. Both the original and revised TPH cleanup standards need to be clearlystated. This section should also state that the ESD will become part of theadministrative record and identify the local repository. Finally, this section shouldcite the requirements of CERCLA section 117, which include announcing the RODmodification to the public with a press release.

Response - The text has been revised as requested.

Comment 3 - Section 1.2: Given that the focus of the ESD is the cleanup standard for TPH, thissection should discuss the potential source and approximate volume of TPH at theeach of the sites.

Response - The pre-remedial volume of TPH contaminated soil at Site 1 was estimated to begreater than 8,000 yd3 based on data presented in the Rl and subsequentattachments (References 2 and 7). Attachment 1 to the ESD outlines the recent soilsampling conducted to estimate the current soil volume impacted by TPH. The texthas been revised to reflect this information. An estimate of TPH contaminated soilsat Sites 2 and 3 was not performed due to limited supporting data. The source ofTPH contamination at Sites 1, 2, and 3 is not specifically known, but it is likely fromreleases from buried drums of petroleum-based coolants and lubricants.

Comment 4 - Section 1.3 Page 1-3: The last paragraph on this page indicates that commentson the ESD can be forwarded to Corey Lam. In addition to having the invitation forcomments appear in this section, it is suggested that the request for comments isalso included in a cover letter. Also, the press release that will go out with the ESDshould provide instructions for reviewing and commenting on the ESD.

Response - The text has been revised as requested and the cover letter will include a requestfor comments. A press release is also being prepared which will provide instructionsfor reviewing and commenting on the ESD.

Comment 5 - Section 1.4. Page 1-4: This section should also provide a current status of theremedial activities at each of the sites or reference Section 2.0, where the currentoperating status is provided. For example, even though resin adsorption was theselected remedy for Site 2, carbon is currently being used. Also, this section shoulddescribe the volume of contamination removed to date, including TPH.

Response - The text has been revised to present a better synopsis of the systems asrecommended, designed, and installed. In addition, the estimated mass of TCEremoved to date from each of the 3 systems is reported. An estimate of the volumeof TPH-contaminated soil remediated is presented for Site 1, but this information cannot be determined for Sites 2 and 3 because current analytical data on TPH levels isnot available.

Comment 6 - Section 1.5. Page 1-4: CERCLA section 121 should be cited in this Section.


Comment 7 - Section 2.0. Page 2-1: Given that TPH was identified as a contaminant of concernat Site 1, the text should describe why the system was primarily designed to addressVOCs, as indicated in the second sentence of the second paragraph.

The third sentence of the second paragraph indicates that the SVE system at Site 1has already achieved the narrative standards while the second to last sentence ofthe third paragraph states that final modeling has yet to be completed. Thesestatements should be revised to be accurate and consistent.

The first sentence of the third paragraph should indicate that the system was shutdown at Site 1.


Comment 8 - Section 3.0. Page 3-1: This section needs to describe the steps required to meetthe standards for the new Arizona regulations. This should include a factualdemonstration that the site qualifies as non-residential land use.

The third paragraph refers to "enforceable standards" and the new "guidance." Sinceguidance documents are not always enforceable and the new standards come fromregulations, the source of the new standards needs to be specifically described andconsistently referenced throughout the document.

Response - The text has been revised to include assurances that the present and future landuse will remain industrial, as supported by an existing deed restriction recorded withPima County related to the closed RCRA surface impoundments. In addition, theprocedures for submitting a VEMUR and requesting a Letter of Completion fromADEQ are outlined.

Comments on the Draft Final Explanation of Significant Differencereceived from William Ellett, ADEQ

January 25, 2000

Comment 1 - Page 1-1. first paragraph: The Record of Decision (ROD) referred to is dated April1997. The U.S. Air Force signed the ROD on May 19, 1998. ADEQ signed it onJanuary 6, 1998 and EPA signed it on September 30, 1997.

Response - The text has been revised to eliminate the details of when signatures wereobtained. In addition, the April 1997 Final Sites 1, 2, and 3 ROD is consistentlyreferred to as the "April 1997 ROD."

Comment 2 - Page 1-4. first and second paragraphs: The preferred alternative in the RI/FS forSites 1, 2, and 3 was soil vapor extraction (SVE) with Purus (resin) adsorption ofVOCs. The 1997 ROD called for SVE with granular activated carbon (GAC) at Site1, and SVE with resin adsorption or GAC at Sites 2 and 3. Please edit theseparagraphs accordingly and provide a brief summary of the rationale (cost,efficiency, etc.) used to decide on the use of GAC at Sites 1 and 3 and resin (untilrecently) at Site 2.

Response - The text has been revised to provide details on the modification of the remedyselection after the completion of the Rl/FS.

Comments on the Interim Final Explanation of Significant Differencereceived from Sean Hogan, US EPA

March 31,2000

Comment 1 - Page 3-1 - Institutional Controls: The Air Force states on page 3-1 that it intendsto file a VEMUR with the Pima County Recorder's Office, and that this combined withthe fact that a "deed restriction" exists on the Site and that the Site is currently being

used for industrial purposes and the anticipated future use is industrial, should allowfor the adoption of new ADEQ HBGL's.

The Air Force should commit to protective institutional controls for the Site in theESD. First, the Air Force has not filed a "deed restriction" on the Site. Instead, theyhave filed with the County Recorder for Pima County, Arizona, a "notice in deed"which references the risk-based clean closure of certain RCRA units at the Site. Notonly does this section need to be redrafted for accuracy, but it raises concerns thatthe mere recordation of a VEMUR and this "notice in deed" provides inadequateprotection to human health and the environment for areas at the Site wherechemicals are being left in place above residential levels. The VEMUR is theequivalent of a deed notice, and holds no enforcement mechanism. EPA's concernsare not allayed by the Air Force's statements that the property currently is, and isanticipated in the future, to be used for industrial purposes. The point is to restrictthe property, with effectual institutional controls, to make sure that the property isused for industrial, and not residential, purposes in the future.

To this end, the Air Force should first commit in the ESD that while the property isowned by the Air Force that the property will be used only for non-residentialpurposes, and that the Air Force should also commit in the ESD that once theytransfer any or all of the Site, that the Air Force will retain an enforceable propertyinterest which restricts future uses of the Site to nonresidential uses until such timethat it is shown to USEPA that such a restriction is no longer necessary.

Response - Section 3.0 has been corrected or accuracy. In addition, the text has been revisedto reference the Aeronautical Systems Center letter of April 27, 2000, which statesthat as long as the federal government owns AFP 44, the property will be used fornon-residential purposes. Furthermore, the text now reflects the Air Force's writtencommitment to place a deed restriction on the property when the property is sold ortransferred.

Comment 2- Page .1-4. fourth paragraph beginning with the words "[biased on sampling results- The first sentence of this paragraph should be changed to the past tense in orderto contrast site conditions before remedial actions had taken place, to what they arenow that remedial activities are being undertaken. So the sentence should read asfollows: "Based on sampling results presented in the Rl (Reference 3) andsubsequent attachments, the volume of TPH-contaminated soil greater than 100mg/kg at Site 1 prior to the remedial action was estimated to be greater thanIn addition, the word "resent" in the second sentence of this paragraph should bechanged to "recent".

Response - The text has been revised as requested and the typographical error has beencorrected.

Comment 3 - Page 3-1. first bullet towards bottom of the page - the word "ot" in this sentenceshould be changed to the word "to".

Response - The typographical error has been corrected.

FINALESD ATTACHMENT I:Site 1 Post-RemedialSoil Boring Results

Air Force Plant 44Tucson, Arizona

Prepared by:Earth Tech, Inc.5575 DTC Parkway, Suite 200Englewood, Colorado 80111

Prepared for:United States Air ForceAeronautical Systems CenterAcquisition Environmental, Safety and Health Division,Engineering DirectorateWright-Patterson Air Force Base, Ohio 45433

Raytheon Systems CompanyEnvironmental Health and Safety1151 E. Hermans Road, Bldg. 826Tucson, Arizona 85706

May 2000

Table of ContentsSection No. Page No.

1.0 INTRODUCTION 1-1

2.0 METHODOLOGY 2-1

3.0 RESULTS 3-1

4.0 DISCUSSION/CONCLUSIONS 4-1

List of Tables

Table No. Page No.Table 1 Vapor Monitor Well Construction 2-3Table 2 Maximum PID Readings (ppm) 3-1Table 3 Total Petroleum Hydrocarbons in Soil (mg/kg) 3-2

List of Figures

Figure No. Page No.Figure 1 -Site 1 Post-Remedial Boring Locations 2-2Figure 2 - Post Remedial TPH Analytical Results 3-3Figure 3-TPH Concentration Contours at 5-feet bgs 3-4Figure 4 - TPH Concentration Contours at 10-feet bgs 3-5Figure 5 - TPH Concentration Contours at 15-feet bgs 3-6Figure 6 - TPH Concentration Contours at 20- to 30-feet bgs 3-7

List of Appendices

Appendix TitleA GRC, Inc. Report -B-118/VM-118 InstallationB Laboratory Data Summaries and Chain of Custody DocumentationC Soil Boring Survey CoordinatesD Geologic Logs

Final Site 1 Post-Remedial Soil Boring Results - May 2000 Page i

L:\WORK\26636\Work\Product\TPH\Site 1 TPH Fnl.doc

1.0 Introduction

In 1996, Earth Tech, Inc. (Earth Tech) installed a soil vapor extraction (SVE) system at Site 1,along the southern boundary of Air Force Plant 44. The system was operated by Earth Techand Raytheon Systems Corporation (Raytheon) under the direction of the U.S. Air ForceAeronautical Systems Center, Wright-Patterson Air Force Base. The contaminants targeted forremediation were primarily chlorinated solvents, including trichloroethene (TCE), which wereidentified during previous soil and groundwater investigation activities. In addition to TCE andrelated volatile organic compounds (VOCs), petroleum hydrocarbons in site soils as high as143,000 milligrams per kilogram (mg/kg) were present from disposal of lubricating and hydraulicoils. Although SVE is not considered the presumptive remedial method for non-volatilepetroleum hydrocarbons, it was anticipated that the increased air flow in the vadose zone wouldstimulate biological activity, leading to the destruction of the hydrocarbons through naturalprocesses.

The July 1997 Sites 1, 2, 3 Record of Decision (ROD), the governing document for the cleanup,dictated a narrative standard for the VOCs and a numerical standard for total petroleumhydrocarbons (TPH). The narrative standard required that the VOCs be removed until it couldbe demonstrated through computer modeling that any residual contamination would not causegroundwater beneath the site to exceed the drinking water standards (e.g., maximumcontaminant level [MCL]). The numerical standard for TPH (100 mg/kg) was based on guidancefrom the State of Arizona, in the form of an underground storage tank program newsletter. Thiscriteria was not a State of Arizona enforceable standard, but may have been intended to limitnuisance odors from surface storage or disposal of TPH-contaminated soils.

Following operation of the SVE system at Site 1 for approximately one year, the VOC levelswere reduced sufficiently that the system was turned off and confirmation sampling wasconducted in the form of vapor monitoring well samples for four consecutive quarters. Thesample results from this testing period demonstrated that the VOCs did not rebound.Preliminary vadose zone modeling with T2VOC indicates that the residual VOCs in soil will notcause future impacts to the groundwater in excess of the MCL of 5 micrograms per liter.

The ROD also required a final confirmation of TPH cleanup, which involved advancing a soilboring (B-118) to the top of the water table and collecting bulk soil samples at several depths forTPH analysis. This borehole was advanced on March 10 and 11, 1999 by GroundwaterResources Consultants (GWRC) of Tucson, Arizona. Samples were collected at 8, 28, 48, 68,98, and 118-feet below ground surface (bgs). The sample from 8 to 10 feet bgs contained TPHlevels above the 100 mg/kg ROD standard (1,100 mg/kg). Appendix A presents the reportsubmitted to Earth Tech by GWRC.

Additionally, TCE was noted in the sample from 118 feet, prompting the installation of a vapormonitoring well in the borehole, designated VM-118. Subsequent vapor sampling duringextraction from VM-118 indicated that a small mass of TCE (less than one percent of the totalmass removed from the site) had remained after the full SVE system operation, but that thismass was effectively removed over the following several months. Based on the most recentvapor sampling, the VOC contamination at Site 1 has been thoroughly addressed.

Following the identification of elevated residual TPH contamination, a two-phased soil boringprogram was initiated in June 1999. This report describes the assessment activities, which

Final Site 1 Post-Remedial Soil Boring Results - May 2000 Page 1-1

L:\WORK\26B36Work\Product\TPH\Site 1 TPH Fnl.doc

were primarily conducted to characterize the vertical and horizontal extent of petroleumhydrocarbon contamination in soils at Site 1.

Final Site 1 Post-Remedial Soil Boring Results - May 2000 Page 1 -2

L-WORK\26636WorfrtProduci\rPH\S/fe 1 TPHFnl.doc

2.0 Methodology

From June 15 through June 16, 1999, Earth Tech performed an initial set of five soil borings(BO-101 through BO-105) in the immediate vicinity of B-118/VM-118, where TPH contaminationwas elevated in a soil sample recovered from 8-10 feet bgs. The borings were distributed withina 25- to 30-foot radius of VM-118 in locations that had been cleared in advance for buriedutilities via geophysical methods. The locations of these borings are illustrated in Figure 1.

Each boring was advanced to 20 feet bgs using hollow-stem auger drilling techniques. Soilsamples were collected at 5-foot depth intervals. These samples were field screened fororganic vapors using a portable photo-ionization detector (PID) and submitted to an off-sitelaboratory for analysis of TPH_and Volatile Organic Compounds (VOCs). Analysis for TPH wasconducted in accordance with U.S. Environmental Protection Agency (USEPA) Method 418.1,to be consistent with previously collected data, as well as the 100 mg/kg ROD criteria, whichwas based on analysis by Method 418.1. Soil samples for VOC analysis were collected usingthe ENCORE sub-sampling device, extracted using the USEPA-approved Method SW5035, andanalyzed by USEPA Method 8260.

The analytical results, which are detailed in Section 3.0 and Appendix B, identified elevatedTPH concentrations in the samples collected adjacent to (BO-101) and west of VM-118 (BO-102), including a level of 13,500 mg/kg in the deepest sample (20 feet bgs) of the westernmostboring. Additional sampling and analysis were required to fully delineate the vertical andhorizontal extent of the TPH contamination.

No site-related VOCs were detected in the bulk soil samples collected with the ENCOREsampling system, however, these results were not considered reliable because of difficultiesgetting the caliche-cemented soil at AFP 44 into the ENCORE samplers without excessivemanipulation.

Between August 18 and September 1, 1999, Earth Tech performed additional soil borings andsoil sample collection for TPH analysis. Thirteen borings (BO-106 through BO-118) werelocated on an approximately 25-foot grid surrounding and to the west of BO-102, including adeeper boring at the location of BO-102. A larger grid than needed had been marked inadvance and cleared for underground utilities using surface geophysics to accommodateexpansion of the soil boring program to the limits of contamination. The boring programprogressed from the vicinity of BO-102 outward to the west and north until field screeningmethods indicated that the lateral extent of the contamination had been determined.

Final Site 1 Post-Remedial Soil Boring Results - May 2000 Page 2-1


VE-117

OBO-116

OBO-110

OBO-118

BO-117O

BO-109O

VM-119

7,60-104O

80-108 VM-120<$>

VM-11

BO-107

BO-106©

BO-102 BO-101

1P-12

BO-115O O

BO-114O

BO-111

.VM-115

BO-113VM-121

BO-112

N

10 0 10 20 FEET

OBO-105

E A R T H ^v] T E C H

.VM-117

FIGURE 1POST-REMEDIAL BORINGS

LOCATIONSIRP SITE 1

10/25/99 26636.01

All downhole drilling equipment was steam cleaned between boreholes. At the conclusion ofthe drilling effort, borehole locations were surveyed. The locations of all boreholes are shownon Figure 1 and surveyed coordinates are presented in Appendix C.

Three of the borings, BO-109, BO-107, and BO-112 were converted to vapor extraction wells(VM-119 through VM-121), which were sampled on September 20, 1999 by Raytheon andfound to exhibit little or no VOCs. A summary of well construction details is provided in Table 1.

TABLE 1VAPOR MONITOR WELL CONSTRUCTION

Boring ID

BO-109

BO-107

BO-112

Wei! ID

VM-11 9

VM-120

VM-121

Construction detailsSchedule 40 PVC, 2" diameter

Screen: 10' -30' bgsSandpack: 8' -31. 5' bgsBentonite: 1'-8'bgsNative soil: 0-1' bgs

Schedule 40 PVC, 2" diameterScreen: 31 '-51' bgsSandpack: 28' - 52.5' bgsBentonite: 1'- 28' bgsNative soil: 0-1' bgs

Schedule 40 PVC, 2" diameterScreen: 15.5' - 13.5' bgsSandpack: 13' -37' bgsBentonite: 1 ' - 1 3' bgsNative soil: 0-1' bgs

Soil samples were collected using split-spoon samplers with brass sleeves at 5-foot depthintervals and field screened for organic vapors using a PID. The split-spoon samplers weredecontaminated with Aiconox and potable water between each sample interval. Each boringwas advanced to a minimum depth of 25 feet bgs. The full vertical extent of contamination wasdetermined by continuing to drill until no significant PID readings were measured in soil from atleast two consecutive sample intervals. Selected samples were submitted to an off-sitelaboratory for analysis of TPH by USEPA Method 418.1. All borings were advanced into non-contaminated soil prior to reaching 60-feet in depth. The results of field screening andlaboratory analysis are presented in Section 3.0. Geologic boring logs are presented inAppendix D.

The PID field screening method was intended to provide real-time measurement of organicvapor concentrations, but unfortunately, the PID could not distinguish volatile TPH contaminantsfrom the residual solvent-related VOCs, which were also present in Site 1 soils. In general,TCE and related solvents volatilize more readily than most TPH compounds when exposed toatmospheric conditions. The extreme heat generated from friction during the hollow stem augerdrilling and split spoon sample collection may have compounded this factor. These issuesforced a reliance on odor and visual observation for estimating when the TPH contaminationwas no longer present. Analytical results indicate that this proved to be an effective method forensuring that the boreholes were advanced beyond the greatest depth of TPH contamination.

Final Site 1 Post-Remedial Soil Boring Results - May 2000

L:\WORK\26636\Work\Product\TPH\Site 1 TPHFnl.doc

Page 2-3

3.0 Results

Geologically, the Site 1 soil borings were representative of typical subsurface conditions at AFP44, with caliche-cemented sand and silt as the predominant material. Some coarser-grainedgranular or gravelly horizons were identified in the otherwise relatively fine-grained matrix,confirming the heterogeneity noted elsewhere on site. Geologic logs for each of the 18boreholes are presented in Appendix D of this report.

Volatile organic compounds were detected in many of the soil screening samples collectedevery 5-feet during the soil boring activities. Table 2 presents the maximum PID readingsmeasured in the field for each soil screening depth. In general, the VOCs were distributedthroughout the soil column, with some more elevated readings in the middle and deeperportions of the vadose zone.

Table 2MAXIMUM PID READINGS

(PPM)

SampleDepth(ft bgs)BO-101BO-102BO-103BO- 104BO-105BO-106BO-107BO-108BO-109BO-110BO-1 1 1BO-112BO-1 13BO-1 14BO-1 15BO-1 16BO-1 17BO-1 18

5

NDNDNDNDND58210.712.2244

17

2.81.5NDND0.8ND

10

4NDNDNDND1542431501

632.2ND

24.2NDND

4ND

15

ND3

NDNDND

48617.4

402744.7142417ND6.4NDND537

20

1108NDNDND332173

20.858

2.378

158ND0.90.7

663.6

25

63297

7614

5.91689

NDNDNDND122

4

30

950446210

2

45311

5.1

35

9504602702.4

2541

8

40

441198126

5

5160

18.8

45

51062

1311

55

50

329232

56

190ND

3

55

19.811547

240

1

60

339260

350

0.4

Notes:Blank indicates no sample collected.ND = No vapors present above the instrument detection limit of approximately 0.1 ppm.

Analytical results from the TPH analysis confirmed the presence of petroleum contaminatedsoils at relatively shallow depths. The maximum depth of soil TPH contamination above theROD-defined clean up standard of 100 mg/kg is 30-feet bgs, and elevated values are laterallylimited at that depth. If the present Arizona residential Soil Remediation Level (SRL) of 4,100mg/kg (Arizona Administrative Code, Title 18, Chapter 7, Article 2, Appendix A, December 4,1997) is considered, the maximum depth of TPH contamination above the standard is 20 feet


L:\WORK\26636\Work\Product\TPH\Site 1 TPHFnl.doc

Page 3-1

bgs. If data are compared to the Arizona non-residential SRL of 18,000 mg/kg, no locationsexhibited TPH levels in excess of the state standards. Table 3 presents the results of laboratoryanalysis for TPH in soils. Figure 2 presents the TPH data from all of the post-remedial soilborings at Site 1. Figures 3 through 6 portray the horizontal distribution of TPH in samples fromthe 5-foot, 10-foot, 15-foot, and 20- to 30-foot depth intervals.

TABLE 3TOTAL PETROLEUM HYDROCARBONS IN SOIL

(mg/kg)

SampleDepth(ft bgs)B-118*BO-101BO-102BO-1 03

FDBO-1 04

FDBO-1 05BO-1 06BO-107BO-1 08BO-109BO-1 10BO-1 11

FDBO-112BO-1 13

FDBO-1 14BO-1 15

FDBO-1 16BO-1 17

FDBO-1 18

5

2700161011.8

16.3

ND1200

54.6

25.8

5.3

ND

10

110011701430

ND

ND

ND

ND65307160

ND

5080ND

ND

53.2

15

ND9320

NDNDNDNDND

1700

ND7350

ND

5.111.77.77.9NDND

7230778022.1

20

ND13500

ND

ND

ND

ND

594ND

1060

ND

23.25.5

24.7

25

ND

8ND

9.18.1

ND6260

30

ND

958NDNDND

35

11.9

ND

ND

40

ND

ND

ND

45

ND

6.1

50

ND

ND

ND

, ND

55

ND

60

NDNDND

ND

ND

Notes:ND = not detected above Method 418.1 detection limitFD = field duplicate sampleBlanks represent depths where no samples were collected for lab analysis.* = Samples actually collected at 8 to 10, 28 to 30, and 48 to 50 feet bgs. Additional samples collected atdepths of 68 to 70, 98 to 100, and 118 to 120 feet bgs were all ND.

Low levels of acetone and methyl ethyl ketone (MEK) were noted in several of the soil samplescollected using the ENCORE sampling devices. All of these results were near or below thedetection limit and are not considered site-related or significant. As noted earlier, the ENCOREsample results were considered unreliable due to excessive manipulation required to get thecaliche-cemented soil sample into the sampler.



Page 3-2

1

r -•' LEGENDj . VM-113j ~"v O SOIL BORING

| •$- VAPOR MONITORING WELL

j NO NON DETECT

i

i ,

*"*""•- • j "—-.,.

DEPTH TPH \

5 ND x ~ „ .. «10 £2 \BO 118

15 22.1

20 24.7 DEPTH TPH

7 "~— ---... 15 7780,«- .J-f "-—•... 25 6260

-A-YE V7 ' ---JS--ND55 ND

60 ND

DEPTH TPH ~~~— ~-

15 ND30 ND

35 ND

60 ND

/DEPTH TPH

5 25.8

10 ND

15 7.9

20 5.5

25 8.1

DEP

5

-.-.I K1,2

.VM-108B

DEPTH TPH \ |DEPTH

5 5.3 \ 2°10 ND \ ' 2j

15 ND 0 «..25 ND BO-1 16 50

;

DEPTH TPH ~"~ — A IDEPTH TPH V. 80—110 DEPTH TPH

15 7350 \ 15 ND 3 16.3

20 594 \ 20 ND ^ ND

30 ND \ 25 ND 1p ND

40 ND \ " ' 2p ND

I * M^m7 ^H

\

BQ-117 VM I la | ucr.r, ,rn NOTE

DEPTH TPH 8 1100 TPH V/

5 •:r>ni 28 ND DUPLIC

Hl-Tfir -.- -, 48 ND MAX'Mt

"• ~l i 30 958 i 68 ND

I - — - -J -7= , ; g J 98 ND•J>D n.y v/nx iid 150 ND VM JJ5_ 118 N0

BO-107/ 60 ND 3- _ ._\/M 1 9D ^^"

-5, BO-1 06 .x^ BQ_

BO- 108 s' Rn-m?T ^\

.^DU— IUi>Gl

101 ^V

-^ \ N I n^PTH TPHDEPTH TPH '

20 ND DEPTH TPH

40 ND j 10 1430

45 ND j 15 9320

60 ND ' 20 1 3500 '1 ' ' lp_i9 ' ' ' VM— 1154f BO-1 11 - •

5 QBO-114 \ QfO-fan 1 1 R N 1 1 \

° DEPTH 1 TPH 1 PEPTH ™ N

10 5000 'U / lbU_J2_^J_ 2Q 1060

- 23.2 -$—%.25 9.1 l— ' 1

BO-112/

/BO-1 13 VM-121

TH TPH \

S4'."B~| DEPTH TPH

j ND — ,n Nn

5 5.1 25 83 ND 4n Nn

50 ND

DEFfTH TPH 5 ND

^ 2700 10 ND

1fi 1170 15 NU

li ND 20 ND

29 ND

I —

-10J3ii

DEPTH TPH

5 11.810 ND15 ND. ._ — —20 ND

I

- - 1 iVM-117I - •

|

10! la=

TPH

ND8

NOND

^TPH VALUE IN (mg/kg)

-DEPTH IN FEET BELOWGROUND SURFACE

\LUE PRESENTED FOR FIELDATE SAMPLES IS THEM OF THE TWO RESULTS.

JO/E— 1207"

T

L ^VE-119

0 10 20 FEET

M i l 1 [

FIGURE 2X*y POST-REMEDIAL TPH

^~111 E A R T H SJ T E C H ANALYTICAL RESULTS^^^ IRP SITE 1

10/25/99 26636.01

( : : ' : : i: ( : : : : i :

LEGEND

O SOIL BORING

VAPOR MONITORING WELL

54.6 TPH CONCENTRATION (mg/kg)

oBO-110NO DATA

NON DETECT0BO-104

16.3

VM-120©>BO-107NO DATA

0BO-114

NO DATA

VM-121BO-112NO DATA

FIGURE 3TPH CONCENTRATION CONTOURS

AT 5 FEET BGSIRP SITE 1

E A R T H

BO-109VM-119NO DATA

LEGEND

O SOIL BORING

VAPOR MONITORING WELL

soao TPH CONCENTRATION (mg/kg)

NON DETECT

OBO-105

ND

BO-113ND VM-121 '

BO-112NO DATA

N .VM-117

10 10 20 FEETE A R T H



10/25/99 26636.01

VE-117

VM-120BO-107NO DATA

BO-1157.9

o

80-11311.7 VM-121

BO-112NO DATA

N

LEGEND

O SOIL BORING

•$- VAPOR MONITORING WELL


NO NON DETECT

OBO-105

ND

10 10 20 FEETE A R T H



10/25/99 26636.01

VE-117

10

LEGEND

O SOIL BORING

•$• VAPOR MONITORING WELL


ND NON DETECT

OBO-113

ND VM-121BO-112

8

0

OBO-105

NO

.VM-117

10 20 FEETE A R T H T E C H


AT 20-30 FEET BGSIRP SITE 1

10/25/99 26636.01

4.0 Discussion/Conclusions

Although soil screening data suggested the presence of VOC contamination in the vadose zoneat Site 1, installation and sampling of vapor monitoring wells in these areas demonstrated thatthe actual quantities of any residual chlorinated solvents are minor. The elevated PID readingsmay have exaggerated the soil conditions due to friction heating of the soil augers and splitspoons during drilling and soil sampling activities. In light of these confirmation sampling resultsand preliminary T2VOC modeling, the VOC removal action at Site 1 can be consideredcomplete. Depending on the time that elapses from now until the closure of the site, futurevapor monitoring well sampling and analysis for chlorinated compounds may be necessary toconfirm the long-term success of the remediation project.

Although the levels of TPH contamination have been reduced substantially from pre-remediationlevels, soils contaminated with petroleum hydrocarbons are still present at Site 1. The pre-remediation levels as high as 143,000 mg/kg have given way to a maximum level of only 13,500mg/kg, and this elevated number is limited to a single soil boring. The majority of the soil TPH isat approximately 7,000 mg/kg or less. Based on Figures 3 through 6, the volume of soil abovethe 100 mg/kg ROD-defined standard is approximately 4,551 cubic yards (yd3) and above the4,100 mg/kg Arizona residential SRL is approximately 1,591 yd3. If the Arizona State non-residential soil cleanup level of 18,000 mg/kg is considered applicable to this long-termmanufacturing facility, no soil is present above the standard.

Final Site 1 Post-Remedial Soil Boring Results ~ May 2000 Page 4-1

L.-\WORKV8636\Wori<\PmdiJct\TPH\Site 1 TPHFnl.doc

Appendix AGWRC Report

B-118/VM-118 Installation


L:\WORKU6636\Work\Product\TPH\Site 1 TPH Fnl.doc

QROUNDWATER RESOURCES CONSULTANTS, INC.CONSULTING HYDROGEOLOGISTS ENVIRONMENTAL SPECIALISTS

6200 EAST 14TH STREETSUITE A2 00TUCSON, ARIZONA 85711PHONE (520) 326-1898 June 25, 1999

CHUCK M. DICKENS, P.G.DAVID B. HAWKINS, P.G.SHELDON D. CLARKKURT J.BLUST, P.G.ALANS. CUDDY, P.G.

Mr. Bill DiGuiseppiEarth Tech1420 King StreetSuite 600Alexandria, VA 22314

RE: Data Collected from Boring B-118 at Air Force Plant #44, Tucson, Arizona

Dear Mr. DiGuiseppi:

This letter presents a compilation of data collected from soil boring B-118 drilledon March 10 and 11,1999 at Site 1 at Air Force Plant #44 in Tucson, Arizona. B-118was drilled during a larger investigation of dry wells, leachfields and chip yards at AirForce Plant #44. Details of that program were described in a separate document

entitled Sampling and Evaluation Report of the Dry Wells, Leachfields and Chip Yards,

Air Force Plant #44, Tucson, Arizona by Groundwater Resources Consultants, Inc.

(1999).

Surveyed coordinates for B-118 are presented in Table 1.

TABLE 1SURVEYED LOCATION OF SOIL BORING

5C8L , jBORING -

B-118

DEPTH

120

NEW STATE PLANE4NA»t$

North

398156

Emit

1004O51

OLD STATE PLANEJNA&2W

North ! East

398115 | 804258

HUG

North

9886

HES.ub*Mi feW M« M>

East

17691

ELEVATION

; •• ••

2620

Lithologic descriptions of samples collected during drilling are presented in Table2.

8701M-69 GWRC

WATER SUPPLY DEVELOPMENT • GROUNDWATER CONTAMINATION INVESTIGATIONS

GROUNDWATER RESOURCES CONSULTANTS, INC

TABLE 2LITHOLOGIC DESCRIPTIONS OF SOIL SAMPLES FROM SOIL BORING B-118

PEPTH DESCRIPTION OF MATERIAL

8 SILT(ML)

Dark yellowish orange (10YR 6/6),dry, minor fine to coarse grainedsand, minor fine gravel, poorlygraded, subrounded, compact,uncemented

28 SILT(ML)

Dark yellowish orange (10YR 6/6),slightly moist, some fine to coarsegrained sand, minor fine gravel,poorly graded, subrounded,compact, uncemented

48 GRAVELLY SAND(SW)

Pale yellowish brown (10YR 6/2),fine to coarse grained sand, fineand coarse gravel, moderatelygraded, subrounded to rounded,loose, uncemented. Gravellysands may begin at 35 feet.

68 SANDY SILTY CLAY{CD

Moderate yellowish brown (10YR5/4), fine grained sand, verydense, moderate plasticity,moderately cemented with caliche

98 GRAVELLY SAND(SW)

Pale yellowish brown (10YR 6/2),dry, fine to coarse grained sand,fine and coarse gravel, moderatelygraded, subangular, loose, weaklycemented. Solvent odor noted at90 feet.

118 CLAY(CH)

Moderate yellowish brown (1OYR5/4), moist, minor fine grainedsand, poorly graded, dense, highplasticity, stiff, uncemented.Continued solvent odor.

TOTAL DEPTH OF BOREHOLE = 120 FEET

Air monitoring for organic vapors was conducted during drilling operations. A

MiniRAE photoionization detector was used to detect the presence of organic vapors.

Concentrations of organic vapors detected during drilling are presented in Table 3.

8701M-69 GWRC


TABLE 3CONCENTRATIONS OF ORGANIC COMPOUNDS IN VAPORS DURING DRILLING

DATE"* ••

03/10/99

03/1 1 /99

TIME

11:55

12:18

12:32

12:36

12:39

12:44

1:00

1:10

1:19

1:40

2:02

2:15

2:59

3:02

3:11

3:36

3:53

4:15

4:30

7:15

7:49

8:42

8:53

9:08

9:27

10:42

DEPTHtteet*

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

90

90

95

100

105

110

115

120

METER READING^(parts per million)

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

7.3- 12.8

0

0

0

0

1.5-4.5

0.3- 1.8

24.0 - 40.3

COMMENT

Background

Borehole

Borehole

Borehole

Borehole

Borehole

Borehole

Borehole

Borehole

Borehole

Borehole

Borehole

Borehole

Borehole

Borehole

Borehole

Borehole

Borehole

Borehole

Background

Borehole

Borehole

Borehole

Borehole

Borehole

Borehole

8701M-69 GWRC


Samples were collected for analysis of total petroleum hydrocarbons (TPH) byEPA Method 418.1 and for volatile organic compounds (VOCs) by EPA Method 8260.The analytical schedule is presented in Table 4.

TABLE 4ANALYTICAL SCHEDULE OF SOIL SAMPLES COLLECTED FROM SOIL BORING B-1 18

SAMPLED

B-1 18 8'

B-1 18 28'

B-1 18 48'

B-1 1 8 68'

B-1 18 98'

B-1 18 118'

BATESAMPLED

3/10/99

3/10/99

3/10/99

3/10/99

3/11/99

3/11/99

TIMESAMPLED

12:20

12:55

13:51

15:23

08:15

09:40

,; SAMPLE, , TYPE

SOIL

SOIL

SOIL

SOIL

SOIL

SOIL

1 TPH ' ' i'• \X

X

X

X

X

X

r VOC:•...'' "" . -nni M-|

..-

X

X

TPH analyses were performed by Turner Laboratories, Inc. in Tucson, Arizona andVOC analyses were performed by Alpha Analytical, Inc. in Sparks, Nevada. Laboratoryresults are attached.

During the drilling, it was apparent that volatile organic compounds were presentin the soil and a decision was made to convert the borehole to a vapor well. Details ofthe well construction are presented in Table 5 and a schematic diagram of the well isshown in Figure 1. Two-inch PVC casing was installed to the bottom of the borehole.The casing is perforated from 80 to 120 feet below land surface. A gravel packconsisting of 0.5-inch pea gravel was installed next to the perforations. During theinstallation of the gravel pack, the gravel bridged and during the effort to break thebridge, part of the borehole wall collapsed. Thus, there is native fill next to the upperfive feet of the perforations from 80 to 85 feet below land surface. The annulus of theborehole from 25 to 85 was backfilled with drill cuttings. The remainder of the annulus,from land surface to 25 feet was filled with cement grout.

8701M-69 GWRC

TABLE 5

SUMMARY OF CONSTRUCTION DETAILS FOR VAPOR WELL B-1 18

DATE

STARTED

PATE

COMPLETED

3/10/99

3/11/99

BOREHOLE

DIAMETER

(Inches)

8

INTERVAL

tftWs)

0- 120

CASING

DIAMETER

finches, ID)

2

INTERVAL

tttbls)

0-120

:TYPE

Sen. 40 PVC

PERFORATED

, JNTCRVAL

(ft bl**

80- 120

GRAVEL

,/PACK

INTERVAL{ft bis)

85- 120

BACKFILLED;

INTERVAL

(ftt>fo) ,,

25-85

CEMENT

INTERVAL,

(ftbfr)

0-25

8701M-69QWRC

bis = below land surface

ID = inside diameter

GROUNDWATER RESOURCES CONSULTANTS, INC.


If you have any other questions about the activities at B-118, please contact me.

Respectfully submitted,

GROUNDWATER RESOURCES CONSULTANTS, INC.

Alan S. CuddyPrincipal HydrogeologtstArizona Professional Geologist No. 23393

ASC:mfcc: J. Craghead, Raytheon

6701M-69 GWRC


DEPTH BELOWLAND SURFACEIN FEET

0 «

OVJ

OCi ,,

1 20

nim' ' O.

• o

b'.'^ •

:o:>:'-

• -o •

.'o/.* ^ *• * »

,

. *• *

» • •• * *

.

, *

, • .

. .*

* . •• * , .

. ' . '

• . * '

' * "

nw,///., * ** •

• &

•oV* »

. o •'•

'-'. o' Q. •

; o .• o*

. o .

• , •

* . .. .

. . • . .• *

. .« ". •

' . ' .

' • * . *.

' .* .

• ; .".9 t •

8* mrh rMAUlC"TC"R RHRFurM P

Vxt-MLN 1 Ur\UU *

^^ UnlLL UU 1 ilNuo

— l/c-inCn rtA uKAVEL

r,f_,_ir./^nATr,rx „ . L , r^.,^ /N»^..,^

FIGURE I. SCHEMATIC DIAGRAM OF WELL B-II8

Turner Laboratories, Inc. Date: 23-Mar-99

CLIENT: Raytheon Systems CompanyLab Order: 9903180

Project: Raytheon Dry WellsLab ID: 9903180-01A Field pH:

Client Sample ID: B-118 8'Tag Number:

Collection Date: 3/10/99 12:20:00 PMMatrix: SOIL

Analyses Result PQL Qua! Units DF Date Analyzed

TOTAL PETROLEUM HYDROCARBONS (418.1AZ) E418.1Petroleum Hydrocarbons, TR 1100 20 mg/Kg

Analyst: DV3/18/99 9:00:00 AM

Qualifiers: ND - Not Detected at the Practical Quantitation Limit (PQL)

J - Analyte detected below quantitation limits

B - Analyte detected in the associated Method Blank

* - Value exceeds Maximum Contaminant Level

S - Spike Recovery outside accepted recovery limits

R - RPD outside accepted recovery limits

E - Value above quantitation range

; 0/6

Turner Laboratories, Inc. Date: ^-Mar-99

CLIENT: Raytheon Systems Company Client Sample ID: B-118 28"Lab Order: 9903180 Tag Number:Project: Raytheon Dry Wells Collection Date: 3/10/99 12:55:00 PM

LabLD: 9903180-02A Field pH: Matrix: SOIL


TOTAL PETROLEUM HYDROCARBONS (418.1 AZ) E418.1 Analyst: DVPetroleum Hydrocarbons, TR ND 20 mg/Kg 1 3/18/99 9:00:00 AM

Qualifiers: ND - Not Detected at the Practical Quantitation Limit (PQL) S - Spike Recovery outside accepted recovery limits

J - Analyte detected below quantitation limits R - RPD outside accepted recovery limits

B - Analyte detected in the associated Method Blank E - Value above quantitation range

* - Value exceeds Maximum Contaminant Level 2 of 6

Turner Laboratories, Inc.



Date: 23-Mar-99

Client Sample ID: B-11848"Tag Number:

Collection Date: 3/10/99 1:51:00 PMMatrix: SOIL


TOTAL PETROLEUM HYDROCARBONS (418.1 AZ) E418.1Petroleum Hydrocarbons, TR ND 20 mg/Kg

Analyst: DV3/18/99 9:00:00 AM








3 of 6




Client Sample ID: B-118 68%

Tag Number:Collection Date: 3/10/99 3:23:00 PM

Matrix: SOIL


TOTAL PETROLEUM HYDROCARBONS (418.1AZ) E418.1Petroleum Hydrocarbons, TR ND 20 mg/Kg

Analyst: DV1 3/18/99 9:00:00 AM








4 of 6




Client Sample ID: B-118 98*Tag Number:

Collection Date: 3/11/99 8:15:00 AM

Matrix: SOIL

Analyses Result PQL Qual Units DF Date Analyzed

TOTAL PETROLEUM HYDROCARBONS (418.1 AZ) E418.1Petroleum Hydrocarbons, TR ND 20 mg/Kg

Analyst: DV3/18/99 9:00:00 AM








5 of 6


CLIENT: Raytheon Systems Company

Lab Order: 9903180

Project: Raytheon Dry Wells

Lab ID: 9903180-06A Field pH:

Client Sample ID: B-118 118s

Tag Number:

Collection Date: 3/11/99 9:40:00 AM

Matrix: SOIL

Analyses Result PQL Qual Units DF Date Analyzed

TOTAL PETROLEUM HYDROCARBONS (418.1AZ) E418.1Petroleum Hydrocarbons, TR ND 20 mg/Kg

Analyst: DV3/18/99 9:00:00 AM


} - Analyte detected below quantitation limits






60/6

Alpha Analytical, Inc.255 Glendale Avenue, Suite 21Sparks, Nevada 89431-5778(702) 355-1044FAX: (702) 355-04061-800-283-1183

e-mail: [email protected]/F/www.powernet.net/~alpha

ANALYTICAL

Las Vegas, Nevada(702)498-3312

FAX: (702) 736-7523Sacramento, California

(916) 366-9089FAX: (916; 366-9138

Ground Water Resources6200 East 14th St, #A200Tucson, AZ 857114029

Job#: Raytheon-Dry Wells/ 8701-DWPhone: (520)326-1898Arm: Alan Cuddy

Alpha Analytical Number 99031207-01AClient I.D. Number: B-118-98 Feet

Sampled: 3/11/1999Received: 3/12/1999Analyzed: 3/15/1999

Volatile Organics by GC/MSEPA Method SW8260B '

Concentration Reporting

Compound ug/Kg Limit

1 Chloromethane2 Vinyl chloride3 Chloroethane4 Bromomethane5 Trichlorofluoromethane6 1,1-Dichloroethene7 Dichlorometrtane8 trans-1,2-Dichloroethene9 1,1-Dictiloroethane10 cis-1,2-Dichloroethene11 Chloroform12 1 ,2-Dicfiloroethane

ND 40pg/KgND 20pg^<gND 20pg/KgND 20pg«gND 20pg/KgND 20pg/KgND 40pg/KgND 20pg/KgND 20pgrt<gND 20pg/KgND 20pg/KgND j 20pg/Kg

13 1,1,1-Trichloroethane I ND 20pg/Kg14 Carbon tetrachloride ND i 20pg/Kg15 Benzene ND 20pg/Kg16 1 ,2-Dichloropropane ND 20pg/Kg17 Trichloroethene NO 20pg/Kg18 Bromodichloromethane ND 20pg/Kg19 2-Chloroethyh/inylether ND 20pg/Kg20 cis-1.3-Dichloropropene21 trans-1,3-Dichloropropene

ND 20pg/KgND 20pgMg

22 1,1,2-Trichloroethane j ND 20pg/Kg23 Toluene j ND | 20pg/Kg24 Dibromochloromethane i ND 20pg/Kg

Concentration ReportingCompound w/Kg Limit

25 Tetrachloroethene26 Chlorobenzene27 Ethylbenzene28 Xylenes, Total29 Bromoform30 1,1,2,2-TetrachkxDethane31 1,3-Dlchlorobenzene32 1.4-Dichlorobenzene33 1,2-Dichlorobenzene

ND 20pgfl<gND 20pg/KaND 20pg«gND 20pg/KgND 20pg/Kg

ND 20pgfl<gND 20pg/KgND 20pg/KgND 20pg7Kg

ND = Not Detected

Approved By:Roger L. Sch6H,Pri.D.Laboratory Director

Date:

Alpha Analytical, Inc.255 Glendale Avenue, Suite 21Sparks, Nevada 89431-5778(702) 355-1044FAX: (702)355-04061-800-283-1183

e-mail: [email protected]//www.powernet.net/-alpha

Ground Water Resources6200 East 14th St., #A200Tucson, AZ 857114029

ANALYTICAL REPORT

Job#: Raytheon-Dry Wells/ 8701-DWPhone: (520)326-1898Attn: Alan Cuddy

Las Vegas, Nevada(702U98-3312

FAX: (702)736-7523Sacramento. California

(916)366-9089FAX: (916i366-9138

Alpha Analytical Number: 99031207-02AClient I.D. Number: B-118-118 Feet

Sampled: 3/11/1999Received: 3/12/1999Analyzed: 3/15/1999

Volatile Organics by GC/MSEPA Method SW8260B

Compound1 Chloromethane2 Vinyl chloride3 Chioroethane4 Bromomethane5 Trichlorofluoromethane6 1,1-Dichloroethene7 Dichloromethane8 trans-1,2-DichIoroetfiene9 1 ,1-Dichloroethane10 cis-1 ,2-Dichloroethene1 1 Chloroform12 1,2-Dichloroethane13 1,1,1-Trichloroethane14 Carbon tetrachloride15 Benzene16 1,2-Dichloropropane17 Trichloroethene18 Bromodichloromethane19 2-Chloroethylvinylether20 cis-1 ,3-Dichloropropene21 trans-1 ,3-Dichloropropene22 1,1,2-Trichloroethane23 Toluene24 Dibromochloromethane

Concentration Reportingpg/Kg Limit

ND 40 pg/KgND 20 pg/KgND 20 pg/KgND 20 pg/KgND 20 pg/KgND 20 pg/KgND | 40 pg/KgND j 20 pg/KgND 20 pg/KgND 20 pg/KgND j 20 pg/KgND | 20 pg/KgND 20 pg/KgND 20 pg/KgND ! 20 pg/KgND ! 20 pg/Kg

40J 20 pg/KgI

I ND 20 pg/Kgj ND 20 pg/Kg

ND 20 pg/KgND 20 pg/Kg

| ND 20 pg/Kgi ND | 20 pg/Kgi ND I 20 pg/Kg

Concentration ReportingCompound pg/Kg Limit

25 Tetrachloroethene26 Chlorobenzene27 Ethylbenzene28 Xylenes, Total29 Bromoform30 1,1,2,2-Tetrachloroethane31 1,3-Dlchlorobenzene32 1,4-Dichlorobenzene33 1,2-Dichlorobenzene

ND 20 pg/KgND 20 Mg/KgND 20 pg/KgND 20 pg/KgND 20 pg/KgND 20 pg/KgND i 20 pg/KgND i 20 pg/KgND I 20 pg/Kg

ND = Not Detected

Approved By:Roger L. Scroll, Ph.D.Laboratory Director

Date:7 /

Appendix BLaboratory Data Summaries

andChain of Custody Documentation


L:\WORK\2G536\Work\Product\TPH\Site 1 TPH Fnl.doc

Samples for Borings BO-101 through BO-103



EXECUTIVE SUMMARY - Detection Highlights

D9F160139

PARAMETER

BO-101-1-SO-N 06/15/99 10:45 001

AcetoneTotal RecoverablePetroleum Hydrocarbons

Percent Moisture

BO-101-2-SO-N 06/15/99 11:15 002

Acetone2-Butanone (MEK)Total RecoverablePetroleum Hydrocarbons

Percent Moisture

BO-101-3-SO-N 06/15/99 11:20 003

Acetone2-Butanone (MEK)Percent Moisture

BO-101-4-SO-N 06/15/99 11:30 004

AcetonePercent Moisture

BO-102-1-SO-N 06/15/99 11:45 005

Total RecoverablePetroleum Hydrocarbons

Percent Moisture

BO-102-2-SO-N 06/15/99 11:53 006


Percent Moisture

BO-102-3-SO-N 06/15/99 12:00 007

AcetoneTotal Recoverable

Petroleum HydrocarbonsPercent Moisture

RESULT

4.5 J2700

8.2

4511 J1170

10.9

13 J4.7 J7.4

6.8 J11.8

1610

6.6

12 J1430

8.6

6.8 J9320

14.2

(Continued on next

REPORTINGLIMIT

22545

0.10

2222561

0.10

22220.10

230.10

535

0.10

22547

0.10

231170

0.10

page)

UNITS

ug/kgmg/kg

%

ug/kgug/kgmg/kg

%

ug/kgug/kg%

ug/kg%

mg/kg

%

ug/kgmg/kg

%

ug/kgmg/kg

%

ANALYTICALMETHOD

SW846 8260BMCAWW 418.1

ASTM D 2216-90

SW846 8260BSW846 8260BMCAWW 418.1

ASTM D 2216-90

SW846 8260BSW846 8260BASTM D 2216-90

SW846 8260BASTM D 2216-90

MCAWW 418.1

ASTM D 2216-90

SW846 8260BMCAWW 418.1

ASTM D 2216-90

SW846 8260BMCAWW 418.1

ASTM D 2216-90

EXECUTIVE SUMMARY - Detection Highlights

D9F160139

PARAMETER RESULTREPORTINGLIMIT UNITS

ANALYTICALMETHOD

BO-102-4-SO-N 06/15/99 12:15 008


Percent Moisture

BO-103-1-SO-N 06/15/99 12:35 009


Percent Moisture

BO-103-2-SO-N 06/15/99 12:45 010

Percent Moisture

BO-103-3-SO-N 06/15/99 13:00 Oil


BO-103-4-SO-N 06/15/99 13:15 012


BO-103-3-SO-FD 06/15/99 13:00 013


TB061599-1-WQ 06/15/99 10:30 015

Methylene chloride

3800 J,B 1100013500 2290

12.7

4.4

7.3

5.2 J14.0

3.4 J10.3

4.7 J14 .4

0.10

0.10

0.10

230.10

220.10

230.10

ug/kg SW846 826OBmg/kg MCAWW 418.1

% ASTM D 2216-90

4.8 J 21 ug/kg11.8 10.5 mg/kg

0.29 J,B l.O

SW846 8260BMCAWW 418.1

ASTM D 2216-90

ASTM D 2216-90

ug/kg SW846 8260B% ASTM D 2216-90

ug/kg SW846 826 OB% ASTM D 2216-90

ug/kg SW846 826 OB% ASTM D 2216-90

ug/L SW846 8260B

c:

Earth Tech

1420 King Street, Suite MO

Alexandria, Virginia 22314

Phone No. (703) 5494721; Fix No. (703) 549-9134

IChain of Custody

E « H I H T I C H

* tlJCO MtftNATKJHAt LTD. COMMWT

PAGE OF

Quanterra (303.421.6611)

Pmfmet Nun*

AFP44 EBS Phase II; Tucson, AZ

AcfcfrMI

4955 Yarrow St.

on

Arvada CO

twnaMomuffen

sea MCODC SAUPHO

OpCoOf

80002

PoM of Cwrtf afPhont Ho.

Bill DiGuiseppi (Alexandria, VA) 703.706.0519

OOMT Svnpto tofomuflai

FfcMS.mpl.lO. No. or Coobr

t?

S2)

Capill

Chttn ot Curtody No.

Common!*

BO-lai H 5o*

Vi-ICTl A2_ R. Z- Ui£- V X

3 f\l ozc? X-joL JL ^

X3. fe/xr £^ ^Id A/ >x

l£. IJ^

K- 101, iufz<) r

0-103 -103-1 - 60 V1Q_ X^

5rBo-lo 3 MO X"60 'to 3 x;y X

Sftpnwit Uithod/AlrttUI Ho.

—4Ol

( (

Earth Tech

1420 King Street, Suite 600


Phone NO. (703) 5494728; FMX No. (703) 549-9134

Chain of Custodyf * n i H T I C K

A tyCO WnrAAMDOWl LTD. OOMMWfPAGE OF _

fory

Quanterra (303.421.6611)

Project W*wn*


Point or Co/iUO/PAono No.

4955 Yarrow St.

Arvada

Slml»

CO

IRpna MetmMon

tea UCODC iAUpHo

IlpCodt

80002


SIM ConUel/PhOM No.

OtfMr Smpto Wofnullon

KnOftlt ch**i or cutiooy NO,

Comment*

IZQQ XFIELD <Q<a.

*&0. 4-fi IK X

f. fl#o»/v»d fly /Company

nm»

3. Rfcrtwi By /

Sft m.nt U««KHl'/l»« No.

—4

CD

EXECUTIVE SUMMARY - Detection

D9F17Q132

BO-104-

PARAMETER

1-SO-N 06/16/99 07:45 001

Total RecoverablePetroleum Hydrocarbons

Percent Moisture

RESULT

16.3

3.2

REPORTINGLIMIT UNITS

10.3 mg/kg

0.10 %

ANALYTICALMETHOD

MCAWW 418 .1

ASTM D 2216-90

BO-104-2-SO-N 06/16/99 07:52 002

Percent Moisture

BO-104-3-SO-N 06/16/99 08:00 003

Percent Moisture

BO-104-4-SO-N 06/16/99 08:15 004

Percent Moisture

BO-105-1-SO-N 06/16/99 08:44 005


BO-105-2-SO-N 06/16/99 08:55 006

Percent Moisture

BO-105-3-SO-N 06/16/99 09:05 007

Percent Moisture

BO-105-4-SO-N 06/16/99 09:10 008

Percent Moisture

BO-104-3-SO-FD 06/16/99 08:00 009

Percent Moisture

10.2 0.10

7.5

4.8 J3.2

0.10 %

10.5 0.10

210.10

ug/kg

11.3 0.10

6.8 0.10

9.8 0.10

8.4 0.10 %

ASTM D 2216-90

ASTM D 2216-90

ASTM D 2216-90

SW846 8260BASTM D 2216-90

ASTM D 2216-90

ASTM D 2216-90

ASTM D 2216-90

ASTM D 2216-90

Earth Tech



Priori. No. (703) 549471S; Ft* No. (703) 549-9)34

Chain of CustodyE A R T H T I C K

A tyCO WnTMMTXVMl LTD.

PAOE _ Of _

Quanterra (303.421.6611)

Proitct Hunt


4955 Yarrow St.

ory

Arvada

ut.

CO

fffPIWS ttfonnafton

ICO MCODf

IlpCoOf

80002

PoMorContect/PAoiM No.


SIUCont*er/Plx»MHo.'

703 -

CtimtoofCuitoityHo.

Comments

Q-ys'^c/Hfi3

0 - yBo-IP1-/ Bo -/0V- 3 -So-// X Y

W /V 50 x xS Bo-IPS' 5 o&M y

10 /I/ ,5" x19-

SO y xA/ so VFP Bo-lot-3-Sv-FD x y

/O 0 -l-UJfo

Ol

Precis Analytical Data Report/'r«f«f-

Client: EARTH TECH INC

Client Sample ID:Lab Sample ID:

EB081899-1-AQE9H200167-001

Batch:Matrix:Units:

Analyte

9232441Wqmg/L

Hydrocarbons, Tot Recoverable Petroleum (418.1 IR)Separator/ Funnel Liquid-Liquid Extraction

Result

Method: 418.1Preparation: 418.1

RL Oil. Factor Qualifier

Date Sampled: 08/18/99Date Prepared: 08/20/99Date Analyzed: 08/20/99

Total RecoverablePetroleumHydrocarbons

ND 1.0 1


BO-106-1-SO-NE9H200167-002

Hydrocarbons, Tot Recoverable Petroleum (418.1 IR)Auto-Shaker/Solid-Solvent Extraction

Batch:Matrix:Units:

Analyte

9232461Somg/kg

Total Recoverable

Method:Preparation:

Result1200

RL

500

Dil

418.1AUTO-SHAKER

. Factor

50

Qualifier

DateDateDate

Sampled:Prepared:Analyzed:

08/17/9908/20/9908/20/99

PetroleumHydrocarbons


BO-106-3-SO-NE9H200167-003


Batch:Matrix:Units:

Analyte

9232461Somg/kg

Total Recoverable

Method:Preparation:

Result

1700RL

1000Dil.

418.1AUTO-SHAKER

Factor Qualifier

DateDateDate


08/17/9908/20/9908/20/99

100PetroleumHydrocarbons

- 7

Precis Analytical Data ReportA Qiutttiam Prwfnru



BO-106-6-SO-NE9H200167-004


Batch:Matrix:Units:

Analyte

9232461Somg/kg

Total Recoverable

Method:Preparation:

Result958

RL

250Dil.

418.1AUTO-SHAKER

Factor Qualifier

DateDateDate


08/18/9908/20/9908/20/99



BO-106-7-SO-NE9H200167-005


Batch:Matrix:Units:

Analyte

9232461Somg/kg

Total Recoverable

Method:Preparation:

Result11.9

RL10.0

Dil.

418.1AUTO-SHAKER

Factor1

Qualifier

DateDateDate


08/18/9908/20/9908/20/99



BO-106-9-SO-NE9H200167-006


Batch:Matrix:Units:

Analyte

9232461Somg/kg

Total Recoverable

Method:Preparation:

ResultND

RL

10.0

Dil.

418.1AUTO-SHAKER

Factor1

Qualifier

DateDateDate


08/18/9908/20/9908/20/99


- 8 -

Precis Analytical Data ReportA Qumiunt I'nxfwr ~



BO-106-11-SO-NE9H200167-007


Batch:Matrix:Units:

Analyte

9232461Somg/kg

Total Recoverable

Method:Preparation:

ResultND

RL

10.0Dil.

418.1AUTO-SHAKER

Factor1

Qualifier

DateDateDate


08/18/9908/20/9908/20/99



BO-107-4-SO-NE9H200167-008

Hydrocarbons, Tot Recoverable Petroleum (418.1 IR)A uto-Shaker/Solid-Solvent Extraction

Batch:Matrix:Units:

Analyte

9232461Somg/kg

Total Recoverable

Method:Preparation:

Result

ND

RL

10.0

Dil.

418.1AUTO-SHAKER

Factor1

Qualifier

DateDateDate


08/19/9908/20/9908/20/99



BO-107-6-SO-NE9H200167-009


Batch:Matrix:Units:

Analyte

9232461Somg/kg

Total Recoverable

Method:Preparation:

ResultND

RL

10.0

Dil.

418.1AUTO-SHAKER

Factor1

Qualifier

DateDateDate


08/19/9908/20/9908/20/99


- 9 -

Precis Analytical Data ReportA Qiuaturra /'nvfiwr-



BO-107-6-SO-FDE9H200167-010

Batch:Matrix:Units:

Analyte

9232461Somg/kg


Method:Preparation:

418.1AUTO-SHAKER


Result RL Dil. Factor Qualifier


ND 10.0 1


BO-107-8-SO-NE9H200167-011


Batch:Matrix:Units:

Analyte

9232461Somg/kg

Total Recoverable

Method:Preparation:

Result

ND

RL

10.0

Dil.

418.1AUTO-SHAKER

Factor

1

Qualifier

DateDateDate


08/19/9908/20/9908/20/99



BO-107-9-SO-NE9H200167-012


Batch:Matrix:Units:

Analyte

9232461Somg/kg

Total Recoverable

Method:Preparation:

Result

ND

RL

10.0Dil.

418.1AUTO-SHAKER

Factor1

Qualifier

DateDateDate


08/19/9908/20/9908/20/99


- 1 0 -

Precis Analytical Data Report

Client: EARTH TECH INC ;

Client Sample ID: BO-107-12-SO-NLab Sample ID: E9H200167-013


Batch: 9232461Matrix: So Date Sampled: 08/19/99Units: mg/kg Method: 418.1 Date Prepared: 08/20/99

Preparation: AUTO-SHAKER Date Analyzed: 08/20/99

Analyte Result RL Dil. Factor Qualifier

Total Recoverable ND 10.0 1PetroleumHydrocarbons

1 1 -

Earth Tech



Phone No. (703) 549-8728; Fax No. (703) 549-9134

Chain of CustodyE A R T H T • O H

A tr/co ivrc/vMnofw. LTD. COMWW

PAQE Ji.O

Laboratory

Quanterra (Keith Alecson)/(1. 800.522.1 275)

Project Name

AFP44 Site 1 Borings; Tucson, AZ

Addnt*

1721 South Grand Avenue

City

Santa Ana

Slate

CA

ERPIMSMormltlon

SACODE SAMPNO

Zip Cotlf

92705

Po/nl of Contact /Phom No.


S/M Contact/ Phona No.

John SchroederA703.626.3086

Other Samp/o Information

FM<t Sample I.D,

EHMo. ofCon. No.

Anslyslt Chain o< Custody No.

Comments

0.0 o.dBO- /oC, $,$ is/ 60- /04-J - ^o - N So

n« $01 60- 30-0 A/ SO

- /o6 A/ Jo5/-0 A/ flo- M 5o

BO- A/- /Of

'07 3/.0 /07- 4 -So -A/ «, 0703 5031,0 6103 SO

N7T

El 5600-

1. atcflvtd By

Dtte Time

3. fte/fnouWmfSy/Cornptny Tlmg Time

Shipment MtlhoO/Alrtlll No.

Earth Tech



Phone No. (703) 549-8728; Fax No. (703) 549-9134

Chain of CustodyE A R T H SgJ T I C K

A ttfCa ItmRHAnONAL LTD, COMBWV

Laboratory


Addnai


C7fy

Santa Ana

sou

CA

EHPIMSInrbmnl/on

LOCIO

SO~«>1<-\_

001

SBD

&o.S

sen

6U

— ~-,

SACODE

ft

—

SAMPNO

II-

^^^

ZlpCoda

92705

Project Name


Point ol Contact /Phone No.


5/18 Contact /Phone No.

John Schroeder/703.626.3086

Other Sample Information

Field Sample I.D.

RQ~(o~l-' {z -Jo-/\/

\ /In^^~MtLz_jj(«[r^\

^

1. Relinquished BjfJ Coroaeny i H * 1 - - t

wUL, !A«tLJpi r/L'W^2. Rellnqulshej/ By /Company [

3. Relinquished By/ Compeny

Date

B/fl/tf

\^

(Jit«,.

fj

«.

T7mfl

/?53

-- — -.

77m

Time

Time

Matrix

$0

^

No.otCon.

(

^\

CoolerNo.

---.

Antlytt,

•§

I

1

<

». H • ^• N.

jl

^^-

• — *--^"••

^

C/u/n of Custody No.

Comments

1. Received By/Company 1 , — • Dttet . Time -^,

2. Received ty/ Company / 1 / Dale Time

3. Receded By /Company Date Time

Shipment Method/Airbill No.

PrecisA Qumtaa I'nvfwT^

Analytical Data Report

Client:


BO-108-3-SO-NE9H210164-001


Batch: 9235175Matrix: SoUnits: mg/kg

Analyte

Method:Preparation:

Result RL

418.1AUTO-SHAKER

MDL Dil. Factor

Date Sampled:Date Prepared:Date Analyzed:

Qualifier

08/19/9908/23/9908/23/99


ND 10.0 5.0


BO-108-6-SO-NE9H210164-002



Analyte

Method:Preparation:

Result RL

418.1AUTO-SHAKER

MDL Dil. Factor


Qualifier

08/19/9908/23/9908/23/99


ND 10.0 5.0


BO-108-7-SO-NE9H210164-003


Batch: 9235175Matrix: SoUnits: mg/kg Method:

Date Sampled: 08/19/99418.1 Date Prepared: 08/23/99


Analyte Result RL MDL Dil. Factor Qualifier


ND 10.0 5.0

PrecisA Quotum I'nxli«t~


Client:


BO-108-12-SO-NE9H210164-004


Batch:Matrix:Units:

Analyte

9235175Somg/kg

Total RecoverableResult

ND

Method:Preparation:

RL10.0

418.1AUTO-SHAKER

MDL

5.0

Dil. Factor1


Qualifier

08/19/9908/23/9908/23/99



BO-109-3-SO-NE9H210164-005



Analyte

Total Recoverable

Date Sampled: 08/20/99Method: 418.1 Date Prepared: 08/23/99Preparation: AUTO-SHAKER Date Analyzed: 08/23/99

Result7350

RL1000

MDL

500

Dil. Factor Qualifier



BO-109-4-SO-NE9H210164-006



Analyte

Total Recoverable


Result594

RL

100

MDL

50.0



veas Analytical Data ReportA Quwutta I'mlmi-

Client:


BO-109-6-SO-NE9H210164-007



Analyte

Method:Preparation:

Result RL

418.1AUTO-SHAKER

MDL Dil. Factor


Qualifier

08/20/9908/23/9908/23/99


ND 10.0 5.0


BO-109-8-SO-NE9H210164-008






ND 10.0 5.0


BO-110-1-SO-NE9H210164-009

Batch:Matrix:Units:

Analyte

9235175Somg/kg


Method: 418.1Preparation: AUTO-SHAKER


Result RL MDL Dil. Factor Qualifier


ND 10.0 5.0 1

PrecisA Qumitrta /'rurfi«t-


Client:


BO-110-2-SO-NE9H210164-010

Batch:Matrix:Units:

Analyte

9235175Somg/kg






ND 10.0 5.0 1


BO-110-3-SO-NE9H210164-011



Analyte

Method:Preparation:

Result RL

418.1AUTO-SHAKER

MDL Dil. Factor


Qualifier

08/20/9908/23/9908/23/99


ND 10.0 5.0


BO-110-4-SO-NE9H210164-012

Batch:Matrix:Units:

Analyte

9235175Somg/kg






ND 10.0 5.0 1

t :

Earth Tech



Phone No. (703) 549-8728; Fax No. (703) 549-3134

Chain of CustodyE A R T H T • C H

A ttfSO WTtKNMlONM. LTD. COMWJ/Y

PAGE

Laboratory


ProlKt Name


Mdrnt


City

Santa Ana

SMM

CA

ERP1MS Information

SBD SED SACODE SAMPNO

Zip Coda

92705

Point of Contact /Phont No.


Site Contact /Phon No.


Other Simple Information

field Stmplg I.D. T7m» Metrix No. ofCon.

Analyst* Chain ot Custody Ho.

Comments

go-(o» X - 3 -6 HoB no0o-/o8 A/ ' 7 - 5o

7T /I 50/b x.

A/ X30,6 A/ SO X

A/ o/z. so Xeo-tw A/ x

-11 D- 2, - SO

A/$0 -H O 7U5 A/ -Ho-H -so - i X

tl By J Company <. Received By / Company

TOa

BfafaTime

HOD2. Recelmd By / Company

/ hf~jL

3. ^See/red fly/Co

Time

Rellnqulthtd By /Company Time

Commnf* Shipment Method/Airbill No.

T€CIS Analytical Data Report

Client:




Analyte

Total Recoverable


Result

6530

RL1000

MDL

500



Client Sample ID: BO-111 -2-SO-FDLab Sample ID: E9H240152-002





Total Recoverable 7160 1000 500 100PetroleumHydrocarbons



Batch:Matrix:Units:

Analyte

9236358Somg/kg


1060

Method:Preparation:

RL

500

418.1AUTO-SHAKER

MDL

250

Dil. Factor

50


Qualifier

08/20/9908/24/9908/25/99


PrecisA Qinmitrra /Wifrt-


Client:


BO-111-10-SO-NE9H240152-004






ND 10.0 5.0


BO-111-12-SO-NE9H240152-005



Analyte

Method: 418.1Date Sampled: 08/21/99Date Prepared: 08/24/99




ND 10.0 5.0


BO-112-4-SO-NE9H240152-006

Batch:_ Matrix:

Units:

— Analyte

9236358Somg/kg




Result RL MDL Dil. Factor QualifierTotal RecoverablePetroleumHydrocarbons

ND 10.0 5.0 1

reasA QuimrcrrJ /'rorfKrt-

Client:



BO-112-5-SO-NE9H240152-007



Analyte

Method:Preparation:

Result RL

418.1AUTO-SHAKER

MDL Dil. Factor


Qualifier

08/21/9908/24/9908/25/99


8.0 10.0 5.0 B


BO-112-8-SO-NE9H240152-008



Analyte

Method:Preparation:

Result RL

418.1AUTO-SHAKER

MDL Dil. Factor


Qualifier

08/21/9908/24/9908/25/99


ND 10.0 5.0


BO-112-10-SO-NE9H240152-009



Analyte

Method:Preparation:

Result RL

418.1AUTO-SHAKER

MDL Dil. Factor


Qualifier

08/21/9908/24/9908/25/99


ND 10.0 5.0

Earth Tech



Phone No. (703) 549-8728; Fax No. (703) 549-9134

Chain of CustodyE A R T H T I C H

» tl/CO IVTBWM nONAL LTD. COMKUff j

PAGE J .. OF J.

Laboratory


Pro/get Ham


Aadntt


Point ol Contact/ Phon No.

City

Santa Ana

StlU

CA

ERPIMS MomtUon

SEO SAcooe SAMPNO

Zip Coda

92705


Sit* Contact /Pnone No.


Other Sfinpli Momtllon

Field StmpltLO.Con.

Cooler

Anlljffls ChtlnotCuHoJyNo.

Comments

-in A/ 50

Bo- / / / M.5 FPBo -in Zl Z-/.S -A/ 5060 - 50,5 A/ -A/ SO

M i-z. to 0530 X01,5 A/ \\fiO so

li, N SO

85J.S to X

083)T. Received By /Company Time

Time

Relinquished By /Company ' 3. Rtp*ln4BY/Con}fli Ttna




L:\WORK\26636Work\Product\TPH\Site 1 TPH Fnl.doc

PrecisA Quantftm /'nx/KiT-


Client:


BO-113-1-SO-NE9I020250-001



Analyte

Method:Preparation:

Result RL

418.1AUTO-SHAKER

MDL Dil. Factor


Qualifier

08/31/9909/03/9909/07/99


54.6 10.0 5.0


BO-113-2-SO-NE9I020250-002




Analyte Result RL MDL Dil. Factor QualifierTotal RecoverablePetroleumHydrocarbons

ND 10.0 5.0


BO-113-3-SO-NE9I020250-003



Analyte




5.1 10.0 5.0 B

- 1 0 -

reas Analytical Data ReportA Quaitaa PmHaa,

Client:


BO-113-3-SO-FDE9I020250-004


Batch:Matrix:Units:

Analyte

9246424Somg/kg

Total Recoverable

Result

11.7

Method:Preparation:

RL

10.0

418.1AUTO-SHAKER

MDL

5.0

Dil. Factor

1


Qualifier

08/31/9909/03/9909/07/99



BO-113-5-SO-NE9I020250-005



Analyte

Total Recoverable


ResultND

RL

10.0MDL

5.0

Dil. Factor Qualifier1



BO-114-2-SO-NE9I020250-006



Analyte

Total Recoverable


Result5080

RL

1000MDL

5.0



- 1 1 -

PrecisA Quimfcro Pnx/wr-


Client:


BO-114-3-SO-NE9I020250-007


Batch:Matrix:Units:

Analyte

9246424Somg/kg


7.7

Method:Preparation:

RL10.0

418.1AUTO-SHAKER

MDL5.0

Dil. Factor1


QualifierB

08/31/9909/03/9909/07/99



BO-114-4-SO-NE9I020250-008



Analyte

Total Recoverable


Result23.2

RL

10.0MDL

5.0




BO-114-5-SO-NE91020250-009



Analyte

Total Recoverable


Result9.1

RL10.0

MDL

5.0

Dil. Factor Qualifier1 B


- 1 2 -

PrecisA Quotum 1'mlMi,


Client:


BO-115-1-SO-NE9I020250-010



Analyte

Total Recoverable


Result

25.8

RL

10.0

MDL

5.0




BO-115-3-SO-NE91020250-011



Analyte

Total Recoverable


Result

7.9

RL

10.0MDL

5.0


1 BPetroleumHydrocarbons


BO-115-3-SO-FDE91020250-012



— Analyte





ND 10.0 5.0 1

- 1 3 -

PrecisA Quotum PrtxfKtf-


Client:


BO-115-4-SO-NE9I020250-013



Analyte

Method:Preparation:

Result RL

418.1AUTO-SHAKER

MDL Dil. Factor


Qualifier

08/31/9909/03/9909/07/99


5.5 10.0 5.0 B


BO-115-5-SO-NE9I020250-014



Analyte

Method:Preparation:

Result RL

418.1AUTO-SHAKER

MDL Dil. Factor


Qualifier

08/31/9909/03/9909/07/99


8.1 10.0 5.0 B


BO-116-1-SO-NE9I020250-015



Analyte





5.3 10.0 5.0 B

- 1 4 -

recis Analytical Data Report

Client:


BO-116-2-SO-NE9I020250-016



Analyte

Total Recoverable


Result

ND

RL

10.0MDL

5.0




BO-116-3-SO-NE9I020250-017


Batch:Matrix:Units:

Analyte

9246424Somg/kg

Total Recoverable

Result

ND

Method:Preparation:

RL10.0

418.1AUTO-SHAKER

MDL5.0

Dil. Factor

1


Qualifier

08/31/9909/03/9909/07/99



BO-116-5-SO-NE9I020250-018

Batch:Matrix:Units:

Analyte

9246424Somg/kg






ND 10.0 5.0 1

- 1 5 -

reds Analytical Data Report

Client:


BO-117-3-SO-NE9I020250-019



Analyte

Total Recoverable


Result7230

RL1000

MDL

5.0




BO-117-5-SO-NE9I020250-020


Batch:Matrix:Units:

Analyte

9246424Somg/kg

Total RecoverableResult6260

Method:Preparation:

RL1000

418.1AUTO-SHAKER

MDL5.0

Dil. Factor100


Qualifier

09/01/9909/03/9909/07/99



BO-117-7-SO-NE9I020250-021



Analyte

Total Recoverable


ResultND

RL10.0

MDL5.0



- 1 6 -

recis Analytical Data ReportA Qumurtf l'nxiiHt~

Client:


BO-117-9-SO-NE9I020250-022


Batch:Matrix:Units:

Analyte

9246426Somg/kg


6.1

Method:Preparation:

RL10.0

418.1AUTO-SHAKER

MDL

5.0

Dil. Factor1


QualifierB

09/01/9909/03/9909/07/99



BO-117-11-SO-NE9I020250-023


Batch:Matrix:Units:

Analyte

9246426Somg/kg


ND

Method:Preparation:

RL10.0

418.1AUTO-SHAKER

MDL5.0

Dil. Factor1


Qualifier

09/01/9909/03/9909/07/99



BO-117-12-SO-NE9I020250-024



Analyte

Total Recoverable


ResultND

RL10.0

MDL Dil. Factor Qualifier

5.0 1PetroleumHydrocarbons

- 1 7 -

recis Analytical Data Report

Client:


BO-118-1-SO-NE9I020250-025


Batch:Matrix:Units:

Analyte

9246426Somg/kg


ND

Method:Preparation:

RL10.0

418.1AUTO-SHAKER

MDL

5.0

Dil. Factor1


Qualifier

09/01/9909/03/9909/07/99



BO-118-2-SO-NE9I020250-026

- Batch:Matrix:

- Units:

— Analyte

9246426Somg/kg

Hydrocarbons, Tot Recoverable Petroleum (418.1 IR)Auto-Shaker/Sol id-Solvent Extraction




53.2 10.0 5.0


BO-118-3-SO-NE91020250-027

Batch:Matrix:Units:

Analyte

9246426Somg/kg


Result

Method:Preparation:

RL

418.1AUTO-SHAKER


MDL Dil. Factor QualifierTotal RecoverablePetroleumHydrocarbons

22.1 10.0 5.0 1

- 1 8 -

Precis Analytical Data Report<i Quantard Ptaiua^

~ Client:Client Sample ID:Lab Sample ID:

BO-118-4-SO-NE9I020250-028



Analyte

Total Recoverable


Result24.7

RL10.0

MDL5.0




BO-117-3-SO-FDE9I020250-029



Analyte

Total Recoverable


Result

7780

RL

1000

MDL

500




BO-115-2-SO-NE91020250-030



Analyte

Total Recoverable


ResultND

RL10.0

MDL5.0



- 1 9 -

Earth Tech



Phong No. (703) 549-8728; Fax No. (703) 549-9134

Chain of CustodyE A B T H

A ttfCO IffTCFtHATJONAi L]

Laboratory


Addreaa


City

Santa Ana

State

CA

ERPIMS Information

LOCID

B0-U1

tea , n 3feoMl 3

'SO' U3

ttu- nu/T?>O' ll<-/^,0- || t|

Eo -/Hto -iiffro -\\GfcO-l/S"

SSD

^0

|0,0ISO

25-0

10-0

ir-oZ6-0

27.0

/J7^

^^T

SED

ssX"

ISS"Ife.O1$£10,5"

&£Zd.S~Z7.f

-nriS.SIbiti

SACODE

A/AJA/F?fJ/u/uA/A//oAJfp

SAMPNO

\

L V

35V

-svl

f•5-5

Zip Code

92705

Project Name


Po/nrofContsct/P/iorwWo.


Site Contact /Phone No.



Field Sample I.D.

BO-il^-l-S^-W

P>O -11^ ~1,~5>&

¥,O ' 1 1 3 - 1 -Sea

P>0 -1)3-3 -S<

vS<3-l/ 3-5~~ 5

-H

y-FD

o-N

Sa- / /V - Z.- So -A/6o- r /V -3 -5<So - lH -y~ s

/ -A/

'& - / /<-/•• 5"- 5o -AyB^-//5"- 1 -So - A/fco-IIS- 3 --SO-/V

,0 -ii*r-S-Sc;-PO1. Relinquished By/ Company .£/ *~\A/] // i

2. Relinquished By /Company f

r^r^

3. Relinquished By / Company f

Data

?4£?

tTi

4Xr4//hMy .

J*fe

^

Data

T7ma

O®P5~

<?3/(5"

(O'SZ^

<3«W

(?ftS~o

c&yo0<?S~o

IfJOO

;o3d

/>53~

/Z/fT

/2v rTime

/ 700Time

Time

Matrix

5o5050So

5tf

$0

5o

SO

5dSo

Stf

^ cJ

No. ofCon.

I

I

f

I

i

)

;)t;/

/

CoolerNo.

Analyst*

Tota

l P

etro

leum

Hyd

roca

rbons

YV

y/^VfcV<cJL A

lA

Chain of Custody No.

Comments

1. Received By / Company

2. Received By /Co/jpeny f [ ^_^ /O

3. Received By /Company I /

Comments Shipment Method/Airbill No.

Date

%/fy

Date '

Time

T'?V$

Time

0

Earth Tech



Phono No. (703) 549-8728; Fax No. (703) 54&-9134

Chain of CustodyE A R T H S=l T B C

A tlfCO WTMNAnOWl

Laboratory

Quanterra (Keith AlecsonV(1. 800.522.1 275)

Address


City

Santa Ana

State

CA

ERPIMS Information

LOCID

&>-//$»

^Q " \\

HhO - 1 1 (b

Bo-;lfeftO'lib

bo- life

^j '\\~)9#>-\\1v^-in•fco-in^7 _* *• 1 f ^1t^f 11 1

"rbo -"\| ""1

SHD

20,0

•wr.0

^•rP10-0

IS'-O

•2S4

)$.0

Z5-0

WHiT.<?65,o(JO.O

SED

#>.<rW.s-

5-.3T

/p,T

/ .i"

^s-.r;s-.rt,frS

tf.s'«/r.<5r.<(aO^

SACODE

Vfitfljfj

^f\JIV

J

/^/OA/•Jy

SAMPNO

i-f

5"j

3

^< -

7

j//;*-

Z/p Code

92705

Pro/act Mima


Point of Contact /Phone No.


Site Contact/ Phone No.



Field Simple I.D.

Bo-//^*/-^)-//BO -//J" -6" -So -A/

Ro-;/fo-/-Sc;'-<rVB6-X^--L'30 -£LB o - / ? ^ -3 -So -A/F?0 "'/('/)- 5~-So -/y^>0 - // T ~~ 5 -So - A/

R0"ll7 -5" -S<y~H

fiO'll"7'T -So ~/V

?>6~ 1 1 7~ <-} "56 -/V

mo-U7 -H-So-tf

^o-in -/I-SO-Nt. Relinquished By /Company / ~^l/?/J // /

2. Relinquished By /Company 1 - ^ '

3. Relinquished By /Company

Comments

Date

vfe/fa

t

^ f

tktfo*i/>M

1

1

0(

i

W

a$/f?Date*

Date

77/TW

/zzr/ZVO

I3VO

/3vs-y/Voo

/vzrASVe;

07573

C?n '

/rtjj /fj

locxT

(0^5^T/ma

T/ma

77ma

Matrix

5D

50

*po50

S<5

^6So

50

50

5c;5o50

No. ofCon.

/

/

\

I

)

'y/I

j;j

CoolarNo.

Analysis

Tota

l P

etrole

um

Hyd

roca

rbons

jOy'vyiVyx"XX)c

\

Chain ol Custody No.

Comments

1. Received By /Company Date Tlim

/r/ir/Oi T^2. Received By fCompeny / ^^ -^ /•3r"/%, P""V \

3. RecelvedjBy/ Company /] j ** Data 77/rw

^ Shipment Uethod/Alrolll No.

Earth Tech



Phone No. (703) 549-8728; Fax No. (703) 549-9134

Chain of CustodyE A R T H JSI T « c H

A Ci/co INTERNATIONAL m

Laboratory


Project Name


Address

1 721 South Grand Avenue

Cfty

Santa Ana

State

CA

ertPMS Information

LOCID SBD SED SACODE SjUtPrVO

Zip Code

92705

Point ol Contact /Phone Ho.


Site Contact /Phone No.

John SchroederX703.626.3086


Field Sample I.D. Matrix Con.Cooler

No.

Analysis Chain ol Custody No.

Comments

go-//g u. I3QO

IO.Q /X

AL Dr Xi£ta. X

f. Relinquished By /Company // T. Received By/ Company Date Time

2. Relinquished By /Company 2. Received, Tttm

/<*>'%.3. Relinquished By /Company Time


Appendix CSoil Boring Survey Coordinates



10020OO

DETAIL "B"

10O3800 10O39OO 1OO*OOO 100^100 10O*2OO 1O043OO

O 1OO ZOO 300 aOO FtuA

100 Cool <3ta Bavod on

Cafilial ZanaMADSQ

1001000

1OOO Faal <3rid Ba*ad anArteafia Stale Ptaqa Caatdinala SynafflCcznlial Zaq«MAOS3

POINTDESCRIPTOR

Y COORDNAD83

X COORDNADS 3

ELEVATIONHAVD88

100*000

Y COORDMAD 2 7

X COORDNAD 2 7

NORTHINGLOCAL

EASTINGLOCAL

ELEVATIONLOCAL

I HEREBY CERTIFY THAT THIS SURVEY WAS PERFORMEDUNDER MY DIRECTION AND ALL MONUMENTS EXISTAS SHOWN.

J. LEONARD FONTES JR. R.L.S. 22759

BO- 10 6 NGBO-1O7 NGBO-1O8 NGBO-1O9 NGBO- 11O NGBO-1 11 NGBO- 1 12 NGBO- 113 WGBO— 1 14 NGBO- 115 NGBO— 116 NGBO— 1 17 NGBO- 118 NG

VH— 118VH- 118 TCVH 119VH-12OVH- 12 1

398149 . 61398149 .99398149. 62398176. 63398194.71398124.94398099.25398102 .23398123 -:843 98 122 . 49398202 .27398175 .77398180.96

398.155 . 98398156.27398 176 .623 98 ISO. 2O398O99 .62

NG - EXISTING NATURALTC = EXISTING TOP OF

M-58BO- 1 O 1

398129 .54398149 .59

1OO4.O24 .411QO4.OO3 . 531OO3979 . 181OO4.OO6 . 631OO4.O2 5. 571OO4.O2 6. O31OO4.O24.O11OO399Q. 121OO4.OO2 . SO1OO3976. 581OO4.OOO.J861OO39.88 . 111OO3957.3O

1OO4.O51 .'731004051.761 0 O4.O O 6 . 4 41OO4.OO4.OO1004024.03

GROUNDCONCRETE PAD

1OO3S7O . 811OO4O51 .2 1

2 6:2 1 . 3 O2 621 . 162 621.232 62 O. 142 62 O. 65262 1 . 852 622 . 492 621. SO2 62 1 . 852621. 792 6 2 O . 382 62 O . 182 62 O . 35

2623.812 62 i . 142 624 .292 624 .512 625 . 36

2 62 O:. 9 12 62 O . 97

398 1O8. 7653981O9 .1453981O8 . 775398135 .785398153 ..864398O84 .:O95398O58 . 4O639SO61 .38639SO82 .995398081 . 645398161 .424398134 .9253 98 14 O . 114

3.98115 - 135398115 .42539813 5 .77539S1O9 .355398058.776

3. 9 8 OS 8 . 695.3981O8 . 745

8O423O.543 9859.49 17664.55 2619 .668O42O9.664 9859.86 17643.67 2619.52804185.314 9859.49 17619.32 2619.S9SO4212.764 9886.51 17646.76 2618. SO8O4231.7O3 99O4 . 59 17665.7O 2619.O1804232.163 983^4.82 17666.17 262O.21804230.144 98O9- 13 17664.16 262O.85804196.254 9812. 1O 1763O.26 262O.16

iiiii: !E:0 E3:il !E:jj JKBifl^fHKK3fl5PM.F8O TC 1 9 -flt • 2 44 9 885 -o*t 17628-24 2618 m.5'*i ^ •-•. • ^p . - - - - - ^ ^ - . B^P. . B. « . . . . »^p . . B . . . . - . B . .. . . . . . p. . . . .r

8O41 63 . 434 989O . 82 17597 . 43 2 61S . 71 •" , .-/ ••..•; V VV .. .';•= C.., ' •,- •.. .'-.; 'V.' •.••.*. ~/f- • '. '•:•••• • -3-.I" -V.-I-.K. l ^ t - C 3 - i ^ j c . ^r-=.:ra V-n •>' .V^J! •--- •-••'-•••

Rn 4° 5 "7 Rl^t inra-fi J ^ - i r ' rn in i Tn ^ fi 1 3 *^O A n r%i~i™i j*^ tL • jv •a-n«5i-9 "=7^ oee« 49 •'7646 57 -a-fia-a ^R nuxi-'il !>-/! H/-VI_ ,01,™. »is«.

804210.134 9860.08 17644.14 2 6 2 2 . .87 GPS SU RVEY OF EXISTING «fai« S«pi<«n,b=ri999

804230:. 164 9809.50 17664.18 2623 .72 IWlriNITO RINrt \A/EI 1 SITES **«.n EsiAnWtawOB «.

chVd JLf

RAYTHEON PLANT rata ,-aooa,d 1-1008O4O76..946 9839-39 1751O.95, 2619.27 ~-,,^*^^*, - — . . H . • _<• ,_„„„, ._ _ . anco /i-? , T - Q i -t c - r io -t-i T UOSOM AF?l!rrOMA8O 4*i&oT.343 9859.^' 17691.35 2D19..33. 1 N^V^VJV^ITI, *^rXI^-\-/l^l^%

Appendix DGeologic Logs


L:\WORK\26636Work\Product\TPH\Slte 1 TPHFnl.doc

borenoie LogProi act Mama: h f t> zJy( f^, ( ? . \ Q •rropcinarro. ft j. p Lfi^ ^Jft. / Jj, ( S i f iMif l J

Project Number: ^CjL^^.Ol

Borehole Location: < i € *f

Drilling Agency: , i ,-

DrmingEqulpm** & fc.^ p^y

Drilling Method: . I ^ A

DrilltagFluld: ^

Completion Information:

I

*••mm

•tf

&$••Ml

«M

••

••«

0M

^

*mm

tm

•m

1«•

••

/I

25-

UtrwJoglcDMatptJon

/ ii i > /

(*•/ !•}- •)-*** c&ritlt' ?i*aif)i*C.} • ) ' ) *

J f 7/ i ^ r • J ^ / /

^ i / / */5% /j Vv"

^ ^ w

;

Borehole Numbers o/-) i/-i /pCJ -^ /u / * ' * / < / ' /

Driller f C

Dat.St«t«t: ^

Dlt9RnWMd: fr/tf/??Date Completed: ^ /^

Borehole Diameter (in): <-,»0

Logged By:

/v}<lM!&<~>£

1

Sanr

illO

H

I

1

\

3

V

OtM

If Blow

Cou

nt

so10

i,'j'1

1ST

iZ-n,S0/3"

|

H30

Total Depth (feet):zo

Depth to Water (feet):/^ //I

Ambient HNu: x,

Elevation and Datum:

Checked By:

— .

•P•*•

•»••

••>

••

•»

mmm

mmf,

~ -^o-'}0 f-t/ -SO- fjmm

mm

•m

mm

ISSSN&ME; Consistency/Density ffine- =0-n ft, ,M *

borenoie LogProject Name: ftCbUU C,,. 1 r • / /? ,-•„„,M / i i l O * T*. / « / 5 i i • D f f ' i n ^ i j

Project Numben 7^4,^4 r^ |

Borehole Location: <^-t ^ e .

Drilling Agency: ~ru p

Drilling Equipment <: . \ V A c p ' /O

Drilling Method: ^ -^

Drilling RuM: ,


•

••

%&*•mm*

•mm

mm

i1

*•

a-

UthotogicDwaripUon

//, hfctv* "/vitro*- fa" rc/ehe

l

Bo - /o Z- Sheet / fff f

DriB8r: CVvqt Ct,-HOv«v-«

Date Started: . / /<ryU^

.Drt.Rrt.hsd: 6|,r/ff

Date Completed: ^ /-^

Borehole Diameter (in): .— '?0

/ / /f %ft<JS

USCS

Type

SunplM

ill

0

0

3

/o8

\

I

3

i

ili\

/r

2.2

1

™

Total Depth (feet):

Depth to Water (feet):

Ambient HNu: -,(J p?*-i


Checked By:

RMnwta

• ^o -10 z- - / - -50 - H

mm

m

•»

; B,o - /^ 2- - "Z. "-So - ;(7•••••k

••*

••

mm

m*

I -go-,02,-3 -So- /Ui e>2> o R ^

h-^,-w^

mm

me

^tm

V?C? NArVfjg; Consistency/Dcnsirv ffine: vervsnftfn=fl-l') «iftfn-9_d> m^it.™ <-Hff/..-c o^ .am n ie\ ..^m ,f ,~ . ,. ... .._

W « « K moist" wet); Color; - .

^Wi^

borenoie LogProjectName: /)/T/>^f £;H / j,- ( £ir-|M-j

Project Number: 7^4^4 r^ /

Borehole Locstion: <; /g T

Drilling Agency:

Drilling Equipment i

Drilling Method: .

Drilling Fluid: . .(J /A

Completion information:

<v 3£?' 5 ^ YjW 1 1 ft

I

••

•i••

0-

SE

UthotogJeOticription

i 1 1? ^ It_tV *T

Borehc^o Numbw« T /*) — //^ j z Sheet / af l

Driller, f • s* +

Dates**** ^/r/f9

.Drt.Fini.he± 6y / r^ f

Date Completed: / / f ./)

Borehole Diameter (bi): ^ '»

Logged By: y /

1

StfflplM

||J

0

O

|

T,

s

V

If 1

10wT f

bo

30

1;W5~

Total Depth (feet):,

Depth to Water (feet):,fiJ /A

Ambient HNu: ,

Elevation and Datum: ' '

Checked By:

HifMrta

- -go- to i - / ~^ " fj

mm

- "BO'/yj - Z - S C - - /U••••••

; BO-W3-2. -So- PD

•»!•

IB

m

mm

mm

mm

mm

mm

vSCSNAME: Consistency/Density r<-|nr. vffrv -nfwn_/\ i \ cnfifn— ~>,<1^ nviHinm rritrfn—* g\ r,:m., nin .••«• ir-im i ,, -.. ,...

=

; Moisture (dry, moist, w«); Color; Gradation [mosUyCSO-JO-). some(3CM5%), little

W =Samp"! Nlimben SD = *""& ^ CT = SamPIe ™: A = AnalysisR7 , 7 nr 1 = aBZ - Breathing Zone; BG = Background; BH = Borehole Headspace; CB = Cuttings Bin

borenoie LogProject**.: # fp

ProjectNumben Borehole Numbers

Borehole Location: -^ , \ e '1 Diflkv

Drilling Agency:

^

Data Started: Total Depth (feet): /

Drilling Equipment —,«,«K, DateRniahed: / , /., .6 // fe /^ T

Depth to Water (feet)

Drilling Method: DateCompMed: AmWentHNtt:

DrtHingRuid: Borehole Diameter (in):0



NLogged By: Checked By:

Umotogle DMoiptfon

Samptaf

Remarks

25-

<S';//-.

Z.ZiTJO

ess less

el t use.

0

I

H

50at?

- Zc

MoUtUie (dly'moist-wet): Color; Gr***tion [mosdy(50-10f3%), some(3(M5%),

B7 Spoon Dnven; R = Recovery; S# = Sample Number. SD = Sample Depth; ST = Sample Time; A = AnalysisBZ = Breathing Zone; BG = Background; BH = Borehole Headspace; CB = Cuttings Bin

borenoie LogProjectName: ACbuu C*.. I r - l &.,,'•*»<f f i t i | O *T^ / -J 0 1 l Jj o r 1 na j

Project Number ? LL1L. d 1/.- 13 & j *o * *

Borehole Location: <^ t ^ e ^

Drilling Agency: . p

Drilling Equipment ^- \ <r \ *>TTCs ^ \*^S- V ^ / t/

V

Drilling Method:

Drilling Ruld: . / .

Completion Information:~ 2-5"' £T a$ VM //$

I^

T2

ffmmmi

mm

mm

mm.

I0BH

mm

mm

4

V*-

35^

Uthotogle Description

r

/1/y «(// »*» sffy3'!8

fV\ L' t <?S i;hai/e. - ff\ ?0l jWys v bran/I,

rne.<A clttSt

TP-Zc/

flnfM hnt» UitB«*kk^^ •Borenoie fiunioer- R/"! — i /*\ cr" « » * / , / /

DrfrUr* /" , ». ^> * r*"urawn (>\e.o^q£. (v-SM,-^_/-** -«

DtfeStarted: ^j,^

•D-toRnW-d: fc/ffc/^9

DateComptetod: ^ //,

Borehole Diameter (in): <->

Logged By:

1

SimplM

ill

0

0

o

z

z

3

ilI

^"

Drill

ing

Tkna

^/CJ

Total Depth (feet): /

Depth to Water (feet): ,

Ambient HNu: ./,cy ,DS>jvv


Checked By:

Rwnarks

•k

mm

•*

V

••

•

mm*

••>

•M

•»

V?V$ NAMg; Consisteney/Dmsitv [fine: very softfnsO-lVsciftfn-?-.^ nv/tinm «tii»n-<.a\ rHftv.._n i r> .,— m- .r -. L _,, ....... . . .

*)]; MoiStUre(diy> moist> wet): Color; G"*««« [mos t ly (50- ia some(3o . l i t t l e

RrJ?eCOVe7: = Sample Number-SD = SamPle P*: ST = Sample Time; A = Analysisne; BG = Background; BH = Borehole Headspacc; CB=Cuttings Bin

ProjectNumben- BorehotoNumber^^

Sheets / ,/

Borehole Location:

DriUmgAgency: DtteStarted:f ' M t u f i

Total Depth (feet):

D-taFWaheck, DepthtoWater(feet):

9 JMoData Completed:: g //$/<?<} Ambient HNu: ^^J /WAV

Drilling Flukl: Bofeflote Diameter (in): d Elevation and Datum:

Com Checked By:

f UthotogicD«*criptJon

Sampjes

Remtikt

£,'*, Z««^ /^ -

5-

0-

5-

25-

hndi hfiflflAsKc-; i

27.. l'l

I.S

/.s

'ft:

i$

e/t't

V r*$P Z-O.O-li-S

1*0'

I -^ JSO--~<f> 25.0-2*-

; ConsisteiKgr/Dtnsitf [fine: very soft(n=0-l)^oft(n=2-i),medium stiff(n2j;8Utiff(n=9.l5),very stiff(n=16-30). hatd(n=31+)]/rcoarse: very loose(tt=0-4),loose(n=5-10),medium dense(n=:l l-30),rJense(n=3l-50).very dense(n=5l4-)]; Moisture (dry. moist, wet); Color: Gradation [mostly(50-IOO%), some(30-45%), little(15-25%). few(5-10%). trace(<5%)]; PlastJcity/Cohesiveness (fine: onplastic(thread=»ioneXslightly pJastic(t=I/4-l/8),low plasticity(t=l/8-l/16)jiiedium plasticity^(t=I/32)Jughplastidty(t=l/64)J/[coanMKCohesive,cohesionless};StraaficaUoD/Strncta« .-:.SP=Spoon Driven; R = Recovery; S#=Sample Number SD = Sample Depth: ST=Sample Time; A = Analysis * ... .J

BZ=Breathing Zone: BG=Background; BH a Borehole Headspace; CB=Cuttings Bin

Dorenoie Luy

ProjectName: |

Project Number. 36 . 0 Borehole Numbers $& - Sheet

3»

Umotogfc Description

Sampfet

F?RWMTkS

•to 361* i'tlf.

35/ft. 7- A*«/; r^^i^f • r * >

40-

45-

50-

55-

60-

'!(•' tOfe &*&

h>

soy, si/

n

.(//7?.J

$.

0.7

1.0

-f* 60-/06-6-JQ-//^$p: 30.0-10.5

/*>$•

-jT:

-_$f>. , 8

/SI}

-*••

2*~/o /W•'re*'*•//•-•tftr*- A^ ' <f£<z-~ w e r t a v f f e j f r~t>- ffa6 e/i*e/»A» '" L i /- AA>I

-w-

7658

SP S$.0-S6.0r-^T" /7<?2

-Tj/3" 60,0-:^r

*/-j

USCSNAM^: Consistency/Density [fine: very soft(n=0-!),soft<n=2-4),mediura stit:f(ni^L-8Utiff(n=9-15),very stiff(ii=16-30). hard(n=3l+Mcoaree: very loose(n=0-4>4oose(n=5-lO),medium dcnse(n=l l-30).dense(n=3l-50Xvery dense(ns51+)]; Moisture (dry, moist, wet); Color, Gradation fnxst]y(50-IOO%X sorne(30-45%), little

BZ = Breathing Zone: BG = Background; BH = Borehole Headspace; CB a Cuttings Bin

Project Nam*

ProjectNumben Borehole Numbers Sheet- /,/

Borehole Location: JT',.f <>, / DrBten

Drilling Agency: DateStarted: Total Depth (feet):

D**Fini*hed: Depth to Water (feet): *]A

"9 //«Date Completed: Ambient HNu: OjO AfP^

Borehole Diameter (in): Elevation and Datum:

Completion Information: Checked By:

Uthoiogic Description

Samotw

13a

&a

'. A<vr£/' dry- li

Fine- fc> i"td:vv*t $u-tu{

i«,

5-70,3 n

0-+ i

'y "5l:

AO5-

275o

25

'*(

y

l.o

Htq

ff/z &. f 20' '9

l.o i.r-

w-; Consistency/Density [fine: very soft(n=0-I)^oft(n=2-4).mediura stiff(n=i8)jtiff(n=9. 15).very stiff(n=16-30), hard(n=3 l+)j/[c«wc- very loose(n=0-. . - , -

4),loose(n=5-10).medium dcnse(n=l l-30).dense(n=31-50),very dense(n=51+)]; Moisture (dry, moist, wet); Color, Gradation [mostly(50- 100%), sorae(30-<5%). little

BZ=Breathing Zone; BG » Background: BH=Borehole Headspace; CB=Cuttings Bin

ProjectNumben , 0( Borehole Numbers BO-/QTJ Sheet 2 ,/'

UthotoglcDtscription

SamplM

flemirto

»

%fc, «£ %

/8 01

7

40-^ny

•

z8SO

50

$/}. 30.0- 3} .jr: #70/7 -

.- Sf>.

(711

tJ'f

45- *MiiittATjKtrrflfttTfava&&K&.l t.. / ' . / / . . . /z:^/? ,///r <?/If /• ye/fw

/z/%/2-Z/

fci- ft

503/ZV2.

/o l5/> 'jp.o-ff.0zs-r-Jzrt-A . A/'M

SS- ws

f-ton

It l.o Vofjj«. SO-/QI-/Z-

:": • "ir^f":'/-:'- • • . • ' , . - • ' • "r&&^:~. • ^•-.^^f",-^^USCS NAME: Consistency/Density [fine: very soft(n=0-l),soft(n=2-4),medium stiff(n=5-8)^tifi'(n=9-15),very stiff(n=16-30), hard(n=31+)]/IcoaTse: very loose(n=0-4).lopse(n=5-IO),inediura dense(n=t l-30),dense(n=3l-50),very dense(n=5l+)]; Molstoi^dry. moist, wet); Colon Gradation [mostly(50-100%Vsonie(30-45%X little

BZ=Breathing Zone; BG = Background; BH = Borehole Headspace; CB = Cuttings Bin

******* fl ft 1 5*\( Bori ngProfectNumben- Borehole Number.:

Borehole LocatJom- 5'tfe 1 Driller:

Mitt**r . / ( ,yvA

Total Depth (feet):

DateRnijhed: Depth to Water (feet):

DrDlIng Method: r, *«'loW J-rtrw //o&t-r

Date Completed: Ambient HNu:

Borehole Diameter (in): Elevation and Daturm-

Completion Information: Logged By: - CheckedBy:

UthologleOMCription

Sarrtpfec

Remarks

fo .'+'(,' 1°

sHs/ A 6

7527

oH i* i 2.

t /j- /UOA/VE-

5H //AC

, aStrdlrM.J J

\r-ff :^o.0F-5r.-

. ~ ***!•,**; r* &>% >'•('; 1^»> I* i™?<w/*{£yvji'*tf& /:Jfro^:||i?*^*^«»'>(

^/ •-•.'•••' : .•_{'--.•_

TO

tr/r

- .-,..,.., ^-,«,,... • - , " , - - • . r r - . -

USCS NAME: Consistency/Density [fine: very soft(n=0-l)^oft(n=2-4).medium stirtfrtsg-StetiffOrf-ISXvery stiff(n=16-30). hard(n=31+)]/leoane: very loose(n=0-4),kx)sc(n=5-10),medium dense(n=l l-30),dense(n=3 l-50).vcry dense(n=51-t-)]; Moisture (dry. moist, wet); Colon Gradation [raosdy(50-100*X sorac(30-45%), little(15-25*), few(5-I(Wb), trace(<5%)]; Plastidty/Cohesiveness [fine: onplastic(thrcad=none)jlightly plastic(t=l/4-l/8),Iow pIastitiWt=l/8-t/l6),mcduira plasticity(t=l/32)Jugh plasticity (t=l/64))/[coarse: cohesive,cohcsionless]; Stratification/Structure •• '.T :^^S':',^SP = Spoon Driven; R = Recovery: Sf=Sample Number SD=Sample Depth; ST = Sample Time: A = Analysis -.::'va .BZ=Breathing Zone: BG=Background; BH=Borehole Headspace; CB=Cuttings Bin v/3&'t

. ••• - . • . ; ••- . . - -

i-uy

ProjectName:- , fa $t\( far'i

Profect Number: Borehole Numbers Sheet 2e-

Uthotoglc Description Type

Samptet

Rwmrkf

3fr

35-

40-

Sft** ,

55-

60-

65

(V SO

,50/

afe

-t-

\*'i~ify?

~-jr \-?r</

--$»

ISP

~fi

USCS NAME: Consistency/Density [fine: very soft(n=0-l)^oft(n=2-4),rnedium stifri;rt^-J),stiftl(n=9-15),very stifKn=16-30), hard(n=31+Mcoarse: very loose(n=0-4),loose<n=5-10)>medium dense(n=l l-30),dense(n=31-50),very dense(n=Sl+)]; Molsture(dry, moist, wet); Color Gradation (mostly(50-100*), some<30-45%i little(15-25%), few(5-10%), trace(<5%)]; Plastidty/Cohesiveness [fine: onplastic(thread=aone)lslightly plasdc(t=l/4-l/8),low plasticity(t=l/8-l/16)^Dcdium plasticity(t=l/32)4»ighplastidty(t=l/«)]/[c«irse:<»hesive,«)hesi<»iless];Stratification/Stra ..'-- ; - . , , : ; - . ^,^!'^:'SP=Spoon Driven; R = Recovery; S#=Sample Number; SD = Sample Depth: ST= Sample Time: A = Analysis .BZ— Breathing Zone: BG=Background; BH = Borehole Headspace; CB=Cuttings Bin :. ;, , • • • •^>-L

ProjectNam*

ProjectNumben- Borehole Number--

Borehole Location:

DriUlngAgency: Total Depth (feet):

Dritiing Equipment 9*M*m± Depth to Water (feet):

Drilling Method: Data Completed: AmbfentHNu: X?

Drilling Rukfc Borehole Diameter (in): 2? <- Elevation and Datum:-

Completion Information: LoggedBy: Checked By:

1 ttkol **«!«> f>« •rali^TnnLunOIOCpG UoSCnpuOn

Sample*

x wx

5H

oH7fy)t

(?ft

sH

I &> c<wsc <?r. i^elf•j't

(ktfcCur

20-4

bove

'fy*****}'-/2~

50S^lSv-''

USCS NAME: Consistency/Density [fine: very sofr(n=0-l),soft(n=2-4),mediura stiff(rp|4Utiff(n=9-15),very stirKrvsl^OX hatd(n=3J*Sftd5Srseivery Ioose{n=0-4),loose(n=5-10),mediumdense(n=l l>30),dense(n=31-50).verydense(n=51+)]; Molstnre(dry, moist, wet); Color; Gradation [mostlypO-100%^*on>e(30-45%X little(15-25%), few(5-10%), trace(<5%)I; Plastidty/Cohesiveness (fine: onplastic(thread=nooe)^lightly piastic(t=l/4- t/8),low plasticity(t= 1/8- I/16)^medium plasticity(t=l/32)jtighplastidty(t=l/^)]/[cc<irK:cohesive,rohesionless];StratUi(atioii/Strnctnre ' :^-V-fc ^?*^^ '-'- ' - •SP = Spoon Driven; R=Recovery: S#=Sample Number: SD = Sample Depth; ST=Sample Time; A = Analysis ' s*|r-rBZ=Breathing Zone; BG = Background; BH = Borehole Headspace; CB = Cuttings Bia : . ; > . - . . .'•/^•^••'I:.

ProjectName:^ J/, (

Prdect Number Borehole Numbers Sheet:

Utrtftogte Description

SM

KMUaffcl

r-fcr»•

7HO

-a

'B&J&w ef firrty #/- - <{(, S

45-

50-

55-

60-

65-

USCSNAME: Consistency/Density (fine: very softfn^I),soft(n=2-4),rnediurn stiff(n=£8),stiff(n=9-l5),vcry stiffl[n=i6-30X hard(rt=3l+)J/[coarse: very loose(rt=O-4)4oc^n=5-10),mediuradense(rf=ll-30),dense(n=31-50),v«y dense(n=51+)]; Moisture (dry, moist, wet); Color, Gradation [mostly(50-lCIO%), some(30-45%), littic(15-25%), few(5-10%), trace(<5%)}; Plastidty/Cohesiveness (fine: onplastic(thrcad=none)^lightly plastic(t=l/4-l/8),low plasticity(t=l/8-l/16)^nedium plasticity(t=l/32)Jiighplasticity (t=l/64)]/Icoarse:cohesive,cohesionless];Stratification/Structure -'Ji •'{-, :SP- Spoon Driven; R = Recovery, S# = Sample Number. SD = Sample Depth; ST = Sample Time; A = Analysis .'" ' . . ' " "BZ=Brcathing Zone; BG=Background; BH = BoreholeHeadspace; CB=Cuttings Bin „.; . _., ' .;u.

imj \mfrn \at t I Wr • V «• •w

, ft ft

ProjectNumben Borehole Numbers A ^ Sheet: / ,

Borehole Location: Jr,f &

ft'UKfiTotal Depth (fee^:.


Drilling Method: Date Completed:* nOCi

Ambient HNir.

Drilling Fluid:: *f/A Borehole Diameter (in): g <-- Elevation and Datum: -

Completion Information: Logged Checked By:

Uthologic Description Remark*

5--6>

fO

0-

D2--?

5-:f,

-Q~rw.

25^y»"IfeW

••*S

.

^

; Consistency/Density (fine: very sofKn=0-I)^ofKn=2-4),mediura stifKBT££tetiff(n=9-15),very stiff(n= 16-30). harcKii=31+)]/[coanei very loose(n=0-. - - , T - , = - . r c i i = c o n e i very oosen=-4).loose(n=5-10),medium dense(ij=n-30))d«ise(n=31-50)>yery dense(n=5l+)]; Moisture (dry. moist, wet); Color. Gradation [mosdy(50-100%X Jome<30-45%X little(15-25%), few(5-10%X trace{<5%)]; Plastidty/Cohesiveness [fine: onplastic(uuead=none).slightly plastic(t=l/4-l/8).low plasticity(t=l/8-l/16Xmediwn plastidty(fel/32),highplastidty(t=l/64)]/[ca^^ . . . . - - - . , , , —SP = Spoon Driven; R = Recovery, S# = Sample Number: SD = Sample Depth; ST= Sample Time; A = AnalysisBZ 9. Breathing Zone; BG = Background: BH = Borehole Headspace; CB = Cuttings Bin „ , . - - :

USCS NAME: Consistency/Density [fine: very soft(n=0-i)^oft(n=2-4),medirjmstirr(rpd»8),stiff(n=9-15).very srjff(n=16-30Xhard(n=31+Mcoarse: very loose(n=0-4),loose(n=5-IO),mediumdense(n=l I-30),dense(n=31-50),very dense(n=51+)J; Moisture (dry, moist, wet); Color. Gradation [mostiy(50-100%), some(3CM5%), little(15-25%), few(5-10%). trace(<5%)]; Plastidty/Cohesiveness [fine: onpIastie#hread=noneXslightly plastic(t=l/4- l/8),low plasticity(t=l/8-W6),medium plasticity(t=l/32)4>ighplastidry(t=l/64)J/lcoaj^:«)hesJve,cohesJcrtess};Stratincatioij/StnictiJre '.' •SP=Spoon Driven; R = Recovery; S#=Sample Number SD = Sample Depth; ST « Sample Time: A = AnalysisBZ=Breathing Zone; BG = Background; BH = Borehole Headspace; CB = Cuttings Bin

borenoie

Project Name:? flpf) (\(\ - $•'*( ffor'f^J

ProjectNumben , ?><o ,0\ Borehole Numbers Sheet

Uthotogie Description

SsnipfM

111 Blow

Rsnwtai

w

40H

45H

5M

tf+O--tn

55-

60-

Zl? i0tf( b>*H-

w-

Y? FA

t&

50

F*

t$r-

t#

USCS NAME: Consistency/Dtnsity [fine: very soft(n=0-l)3oft(n=2^),medium stift(n=&8),sti{f(n=9-15),very stiff(n=16-30X hard<n=31+)]/[coarse: very loose(n=dO-4)Joose(n=5-10),inediumdeiise(n=ll-30).dcnse(n=31-50),very dense(n=51+)]; Moisture (dry, moist, wet); Color; Gradation [rnostly(50-100%Vsomc(30-45%X little(15-25%), few(5-10%), trace(<5%)]; PlasUdty/Cohesiveness [fine: onplasdc(thread=none)^Iightly plastic(t=l/4-l/S),low p!astidty(t=I/8-l/16)^jedium plasticity(t^in2)4ughplastidty(t=l/64Mc«u«:cohesive,cohesionlessl;Stratification/Stnictnre . . . ^,, ;sSP = Spoon Driven; R = Recovery, S#=Sample Number. SD = Sample Depth;ST=Sample Time; A = Analysis .:. -'^ ' :

BZ = Breathing Zone: BG=Background; BH = Borehole Headspace;CB=Cuttings Bin .»,;,:. . ; , . : - % < i * , v :

ca

ProJectNam* flft g.r't

ProjectNumben Borehole Numbers f*>O~-//'Z—

Borehole Location: JT',.fe, I Mhr.

DrfllingAgency: f//f Ditesurt8d; Totai Depth (feet):


DrilttngMethod:^ Date Completed:

Drilling Fluid: Borehole Diameter (in): Elevation and Datum: -

Completion Information: Checked By:

LBhologlc Description

X M'X

Sampie

RMMffcA

5H

- 60-/t2~/-SO-^i$e s-b'S-sr/o/o

-j&cot/e&Y

tMhf ?****/!OH

7 . ,. . ),li&

:A55^ -*'-* s*r*

So

I5H

) 90 Fsr

Sf/5"

? - • - . - • - . fi ••ryi*^:--:^';:m±':USCS NAME: Consistency/Density [fine: very soft(n=0-l)^oft(n=2-4).mediurn stiff(ri=&8).stiff(n^-15).very stifflfn=16-30X hard(n=31+)]/[coane: very loose(n=0-4),loosc(n=5-10).medium dense(n=l l-30),dense(n=31-50Xvery dense(n=51-r-)}; Moisture (dry, moist, wet); Color; Gradation [mosUy(50-100%), toroe(30-45%), little(15-25%), few(5-10%), trace(<5%)); Plastidty/Cohesiveness [fine: onplastic(thread=none)^lightly plastic(t=l/4-l/8)1low plastidty(t=l/8-l/'16Xmediumplastidty(til/32)jughpIastidry(M/64S/[coarse:cohesive,r»hesi()rdess];Stratifl«tioi^t^ : - • - . . - . . .•-.„•.SP=Spoon Driven; R = Recovery: S# = Sample Number. SD = Sample Depth: ST=Sample Time: A = AnalysisBZ = Breathing Zone; BG = Background; BH = Borehole Headspace; CB = Cuttings Bin

T-ProfectNumben £ Borehole Numbers Sheet

Umotoglc Description ype

Samples

ling T

im

RttMnCS

I35H 7

-fate*. la(&ck.

^tt\W

«Hd- '/*«, CilL

//

/h

55- it

Ab ivetf set

60- (Z.

»-

38,5

1ST

USCS NAME: Consistency/Density [fine: very soft(n=0-l),soft(n=2-4).medium stiff(n=5-8),stif!i;n=9-15),very stiffl[n=16-30), hard(n=31+)]/[coarse: very Ioose(n=0-4),loose(n=5-10),medium dense(n=l l-30),dense(n=31-50),very dense(n=51+)3; Moisture 'ry, moist, wet); Colon Gradation [mosdy(50-100%X some(30-45%X little(15-25%), few(5-10%), trace(<5%)l; Plastidty/Cohesiveness (fine: onplastic(thread=none),slightly plastic(t=l/4-l/8).low plastidty(t=l/8-!/16Xmediumplastidry(t=l/32),highp!astidry(t=l/MM«»iw:conesive,cohes^ » : - c>.-":SP = Spoon Driven; R = Recovery; S# = Sample Number; SD = Sample Depth: ST=Sample Time: A = Analysis :

BZ=Breathing Zone;BG=Background; BH = Borehole Headspace; CB = Cuttings Bin - . . ; . - • .

ProjectNumber, Borehole Number-

Boreholei^cation:

y.Date Started: / /

5/3/MTotal Depth (feet): /

Drilling Equipment DateFWahed: Depth to Water (feet):

Drilling Method: .1n£

Date Completed: AmbientHNu:

Drilling Fluid: Borehole Diameter (in): ,,if


Completion Information: Logged By: Checked By:

LWMtogfe Description

SamplM

Remark*

XSHi - l^

107

• f-Ure • f- e

KL-- , lo- r

M-

CD.' K»•20

10Q

-- 0- i -,s<;-

- A /

ML13, 1 •- o

- 3 - •

- 1 -.~ A/

03-34"

/D - / ) 5 - ^—50 —A/

: Very Mft(n=0-l)^ft(n=2-4).mediUm stiff(ii=5-8Utiff(n=9-15),very stif«

^ raoist w«>:

.SP = Spoon Driven; R = Recovery, S# = Sample Nuroben SD = Sample Depth; ST = Sample Time: A = AnalysisBZ aBrealhmg Zone: BG = Background; BH = Borehole Headspace; CB = Cuttings Bin

I MProfectNumten — -

CO -/,/ f

Borehole Location: DrBlen

DrilUngAo^cy:

y-Total Depth (feet):

Drilling Equipment Depth to Wy/rDrilling Method: ,/

'ioDate Completed: _ Ambient HNu: ,

DriUingFluld: Borehole Diameter (in): (, Elevation and Datum:


Lithologlc Deicription

Samples

Remaria

tM.-- i - . l r-

;•, l-f-y

IV.

-- «. r

Mtfl J6 : 0)0 -iiv - 1 -

•ZtJT-O

0/3

3ft-

r

•jfeo - II 1 - 3 - So-

;«-/-

***

o

I2S£SJS4MS; Consistency/Density [fine:

nary(t=l/64Mcoarse:cohesive,coriesiordessJ;Stratmcation/Strnctnre '?«»•» piasuciiySP = Spoon Driven; R = Recovery. S# = Sample Number. SD=Sample Depth; ST=Sample Time: A = AnalysisBZ=Breathing Zone; BG=Background: BH a Borehole Headspace; CB = Cuttings Bin

DUICSIUIC;

Project Name: j£C|? t/Z/ *C 1 "i <T f 12nit \\ ~~ t?rrt X ->o j f DOvina,

ProjectNumben 7 hfrt'îL f\l

Borehole Location: C:/- "/

Drilling Agency: *f-ufc f* »j./ nr Pr* iK^t-

Drilling Equipment: , , 4f / ,fAola^ |1 o -(? f

Drilling Method: M j l <£.! /\rtttllo^ tcw- nvAGif^

Drilling Fluid: • ) /A '


i10-

5-

1H

Uthologic Description

1 ' 1 •** " ** ' \ U ^ li

c c \ \ t U e ^ v^y t f l»^c . <^*^ s e j

l» I L-~

TD - U~'$ '

Borehole Nun&r^^^^ Sheet: /tf^. /

Drilten f=^ I f) J^ritpK<4ffl

%I3I fft!

Dat.Fin«hed: ^//^

Date Completed:

Borehole Diameter (in): x) **

"""•"^/T/Mêc^r

USCS

Type

ftfU

AIL-

Samoies

hi

/O

1

_|y

it

/<M

\i*

<**

I

ifti.

1!*S31«-/

•s1-/

«?

Soli,'

I

IZJT

Total Depthjfeet): '

Depth to Water (feet):N/A

Ambient HNu: ^ „


Checked By:

Remarka

- go - 1 1 s - i - sc/ ' /V

: B O - M ^ ' ^° mm

mm

_. "7 ^ *CO "" /*/

f\ \J "~ t f *J ***

mm Jjw f~ i • ^ ^^

- "So - 1 / - • So - /V

USC^ JÂME- Consistenoy/np nsirv ffine: verv snfi(n-70 n <:nfrCn-r' ^^ rnoriinm c.iffrr, caict i rnv, o ic^ -.ft, ,± ™> , ,. ,. ....n , 1 ' . - , - . a r n = o a05 2 5 % f e w wTi « >;de"s^=31:5°)-veryr

de«se("=51+)]; Moisture (dry. moist we,); Color: Gradation [most.y(50-l6o%),-1/32^ h'iS Tn)t fchva^Tr 1; P'35""1^011^6" onplaS«ic(thread=none).SHghtly PiaStic(t=l/4-l/8).low pl

U-i/3^).higri plasticity (t=l/64))/[coarse: cohesive.cohesionless]; Stratification/StructureSP = Spoon Driven; R = Recovery: S# = Sample Number: SD = Sample Depth: ST = Sample Time: A = AnalvsisB£ = Breathing Zone: BG = Background: BH = Borehole Headspace: CB = Cuttings Bin

ticity

'• f\ff HI -Borehole Numbers

Borehole Location:

DHUlng Agency: Date Started: Total Depth (feet): ^2-5

Date Finished: Depth to Water (feet):yjDrilling Method:

ju fW(Date Completed: Ambient HNu: _

C/ ' Drilling Fluid: Borehole Diameter (in): ^ ),

0Elevation and Datum:

Completion Informati Logged By: Checked By:

Uthologic Description

Samples

i Rofnsrict

150 / C

Vo ,33

- A-7

ML -. J 'o

i^.O

20W/o r e. c o u e v<~\ —

- a sWL O 31

: very somn^-l).Soft(n=2-4).med^

T, P^/icity (t=I/64)]/[coarse: cohesive.cohesionless); Stratification/Structure

SP = Spoon Dnven; R = Recovery; S# = Sample Number: SD = Sample Depth: ST = Sample Time: A = AnaivsisBZ = Breathing Zone; BG = Background: BH = Borehole Headspace; CB = Cuttings Bin

**•"— Ar? 44 - 3»fe 1 S,,/ /Project Nun*«: Borehole Numbers

"/Sheet:

Borehole Location: "7 Drilten

°*9A9e~y: Date Started: Total Depth (feet):: / .,O?/

ft*,**.. Date Finished: Depth to Water (feet): . / .

Drilling Method: Date Completed: Ambient HNu: * .7

Drilllng Fluid: Borehole Diameter (in):5r"



Utnologic Description

Samples

11 Remarks

s(f

io1<

16,if

15 to - l- So-

0- (V\L 'Z-i V* IW

T.7-

TZ = B O - 1 / 7

H

•st 0750 : B O - -A/

KSSfiAME;Consistency/Dens^ {fine: very soft(n=0-1 ).Soft(n=2-4).medium stiff(n=S-8).stifftn=9-15).very stiff(n= 16-30), hard(n=3l+)J/[coarse- very loose(n=0-?5 25%>tw(5 Tr l6^ pf >;fens^=3l:50)-^^ense(n=51+)]; Moisture (dry. moist, wet); Color: Gradation [mostlytfO-lOcW sometfoSSle, im^!hn,;Pf\f?S(t=l/32).high plasticity (t=l/64)]/[coarse: cohesive.cohesionless); Stratification/Structure ;

SP = Spoon Driven: R = Recovery; S# = Sample Number: SD = Sample Depth: ST = Sample Time: A = AnaivstsBZ = Breathing Zone: BG = Background: BH = Borehole Headspace; CB = Cuttings Bin

Borehole Log

ProlectName: ftpp^ (

ProjectNumber Borehole Number.: Sheet: fLjr

Uthotogte Description Type

Sa ptes

Remarks

5-, /

35

3?

O

ML- -s.) I f MCMS J", c!e«se.

'/ &\J ( • i V«

fjlgv.SC

\o

10

T.C/

- "Z.aUc?,f cj i

M

0

oof

0- f/1 L- « S

:%D - ii 7 - 1 1 -

:So-/ ;7-/^

' fc

TJSCS NAME; Consistency/Density [fine: very soft(n=0-l),soft(n=2-4),medium stiff(n=5-8),stiff(n=9-15),very stiff(n= 16-30), hard(n=31+)]/[coarse: very loose(n=0-4),loose(n-5-10),mediumdense(n=l l-30),dense(n=3l-50),very dense(n=51+)]; Moisture (dry, moist, wet); Color; Gradation [mostly(50-100%), some(30-45%) little(15-25%). few(5-10%), trace«5%)]; Plasticity/Cohesiveness [fine: onplastic(thread=none),slightly plastic(t=i/4-l/8),low plasticity(t=l/8-l/16),medium plasticity(t=l/32),high plasticity (t=!/64)]/[eoarse: cohesive.cohesionless]; Stratification/StructureSP = Spoon Driven; R = Recovery; S# = Sample Number; SD = Sample Depth; ST = Sample Time: A = AnalysisBZ = Breathing Zone; BG = Background; BH = Borehole Headspace; CB = Cuttings Bin

usqs

"*-«— flr?W~5,/Vl*Project Number: *} 1 f *ll *> I

lr**V V* -3&f (J \

Borehole Location: JT//^> /

Drilling Agency. ^ $rr//<fl*

Drilling Equipment: ^ ^ j^

Drilling Method:/* ft <<-* A

Drilling Fluid: ^

Completion information:

f

fQ

5-

•••

10-

•

5-

J

5—

UttuXogic Description

M l ' S C f v ^ M s > U • &v^\ , w«A a « v \ s eJ -J /t.

j J

cc \ vc U e vvxoTVl'^^, -

Mt-^.-W~^

— jy\L - c, s c'ôue

f / LWM«<

Borehole Numbers „ . /Q Sheet: /,.'/

Driller: p , r r> - /

DateStarted: a 1 Icq

.Date Finished: ^ / /^ ,,^ / f /^ 7

Date Completed: « 7 / A

Borehole Diameter (in):

Logged By: ,

USCS

Type

ML

(VJL

^

û

Samptes

fit

6

%

"

H

TiTt?

|

^-^

(5r

S)-

Reco

vered

Leng

th (fe

et)

r,

7"

"'

7'

5"

1

14

%

37

5^

Drilli

ng Ti

me

13.20

1330

,s*

lôo

Total Depth (feet): ;


Ambient HNu:.


Checked By:

Remartti

: EO - ; 1 6 - ' - -^ - V-

1^-"*-^-^

- BG- )/ 8 - S - -Sc; ~ V

••

•£.« — J> r J ^ .

SAME; Consistency/Density [fine: verYsoft(n=0-l).sofi(n=2-41.mediumstifffn-s.Rl«iifffn-Q-i<;'i v*™ aim*- if. ->m i,-,j/_ T I .-.•,„... .. , . „. . - . - . - . n = - c o a r s e - very oose(n-0-' 'D3W-dense(n=3'-50).very dense(n=51+)J; Moisture (dry. moist, we,); Color; Gradation [mos,ly(50-lo6%Home(7o 45% Sle

(t=l/64)]/[coarse: cohesive.cohesionless); Stratification/Structure »ui.iiySP = Spoon Driven; R = Recovery: S# = Sample Number: SD = Sample Depth: ST = Sample Time: A = AnaivsisBZ = Breathing Zone: BG = Background: BH = Borehole Headspace; CB = Cuttings Bin

Final Explanation of Significant Difference (ESD) IRP Sites 1,2, and … · 2020-07-08 · Draft...

Documents

Transcript of Final Explanation of Significant Difference (ESD) IRP Sites 1,2, and … · 2020-07-08 · Draft...