quality assurance project plan addendum no. 1 of the ... · remedial investigation and feasibility...

REMEDIAL INVESTIGATION AND FEASIBILITY STUDYFOR

DELATTE METALSPONCHATOULA, LOUISIANA

QUALITY ASSURANCE PROJECT PLANADDENDUM NO. 1

Prepared forU.S. ENVIRONMENTAL PROTECTION AGENCY

1445 Ross AvenueDallas, Texas 75202

Work Assignment No.EPA RegionDate PreparedContract No.Prepared byProject ManagerTelephone No.EPA Work Assignment ManagerTelephone No.

025-RICO-06DF6March 26,199968-W6-0037Tetra Tech EM Inc.Christina Riggins(214) 754-8765Stephen Tzhone(214) 665-8409

BWALKER

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DetatteMetafcRegion 6 QAPP -Section: Al ^Revision: 00 K)Date: March 26,1999 ^Page: iofl ^

Al TITLE AND APPROVAL SHEETQUALITY ASSURANCE PROJECT PLAN ADDENDUM NO. 1

FORREMEDIAL INVESTIGATION AND FEASIBILITY STUDY

DELATTE METALS SUPERFUND SITEPONCHATOULA, TANGIPAHOA PARISH, LOUISIANA

EPA REGION 6

Name:Title:

Signature: ys

Name:Tifle:

Steven TzhoneU.S. Enviromnental

Signature: /^A^^L

Agency Region 6 Work Assignment Manager

Date: 3/2-y/^ 9

Delatte MetalsRegion 6 QAPPSection: A2Revision: 00Date: March 26,1999Page: iofv

A2 CONTENTS

Section

Al TITLE AND APPROVAL SHEET................................................... i

A2 CONTENTS .................................................................... i

A3 ACRONYMS AND ABBREVIATIONS ............................................. i

A4 DISTRIBUTION LIST ........................................................... 1

A5 INTRODUCTION .............................................................. 1

A6 PROBLEM DEFINITION AND BACKGROUND .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

A7 DESCRIPTION OF PROJECT AND TASKS ......................................... 1

A8 QUALITY OBJECTIVES AND CRITERIA FOR MEASUREMENT DATA .. . . . . . . . . . . . . . 1

A8.1 DATA CATEGORIES .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1A8.2 DATA QUALITY OBJECTIVES ......................................... 4

A8.2.1 DQOs for Soil Samples .......................................... 5A8.2.2 DQOs for Ground Water Samples ................................. 11A8.2.3 DQOs for IDW Samples ........................................ 12

A8.3 QUALITY ASSURANCE INDICATORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

A8.3.1 Sensitivity ................................................... 15A8.3.2 Accuracy and Precision ...................................;.... 15A8.3.3 Completeness, Representativeness, and Comparability ................ 16

A9 PROJECT NARRATIVE ........................................................ 1

A10 SPECIAL TRAINING CERTIFICATION AND REQUIREMENTS ...................... 1

All DOCUMENTATION AND RECORDS ............................................ 1

Bl SAMPLING PROCESS DESIGN ................................................. 1

Delatte MetalsRegion 6 QAPPSection: A2Revision: 00Date: March 26,1999Page: iiofv

A2 CONTENTS (Continued)

Section

Bl.l SOIL.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1B1.2 GROUND WATER ..................................................... 2B1.3 SOLID AND LIQUID INVESTIGATION-DERIVED WASTE .................. 2

B2 SAMPLING METHODS REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

B2.1 SAMPLING METHODS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1B2.2 SAMPLE CONTAINER, VOLUME, PRESERVATION, AND HOLDING TIME

REQUIREMENTS .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

B3 SAMPLE HANDLING AND CUSTODY REQUIREMENTS ........................... 1

B4 ANALYTICAL METHODS REQUIREMENTS .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

B4.1 TARGET ANALYTE LIST METALS ..... . . . . . . . .:.. . . . . . . . . . . . . . . . . . . . . . . 1B4.2 CYANIDE ............................................................ 2B4.3 VOLATILE ORGANIC COMPOUNDS .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3B4.4 SEMIVOLAITLE ORGANIC COMPOUNDS .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3B4.5 TOTAL PETROLEUM HYDROCARBONS .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4B4.6 SULFATEAND SULFITE ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4B4.7 DETERMINATION OF pH .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5B4.8 TOTAL DISSOLVED SOLIDS ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5B4.9 TOTAL ORGANIC CARBON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5B4.10 HARDNESS .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5B4.11 ANION/CATION EXCHANGE ........................................... 5B4.12 REACTIVITY .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6B4.13 IGNTTABILITY.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

B5 QUALITY CONTROL REQUIREMENTS .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

B5.1 FIELD QUALITY CONTROL REQUIREMENTS .... . . . . . . . . . . . . . . . . . . . . . . . . 1B5.2 LABORATORY QUALITY CONTROL REQUIREMENTS . . . . . . . . . . . . . . . . . . . . 4

B5.2.1 Laboratory Control Samples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4B5.2.2 MefhodBlanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5B5.2.3 Matrix Spikes and Matrix Spike Duplicates . . . . . . . . . . . . . . . . . . . . . . . . . . 6B5.2.4 Matrix Duplicates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6B5.2.5 Surrogate Spikes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Delatte MetalsRegion 6 QAPPSection: A2Revision: 00Date: March 26,1999Page: iii ofv


Section

B5.3 COMMON DATA QUALITY INDICATORS ............................... 7

B5.3.1 Precision... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7B5.3.2 Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9B5.3.3 Completeness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10B5.3.4 Sensitivity.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

B6 INSTRUMENT AND EQUIPMENT TESTING, INSPECTION,AND MAINTENANCE REQUIREMENTS ........................................ 1

B6.1 GENERAL REQUIREMENTS ........................................... 1B6.2 FIELD EQUIPMENT AND INSTRUMENTS ................................ 1B6.3 LABORATORY INSTRUMENTS ........................................ 2

B7 INSTRUMENT CALIBRATION AND FREQUENCY ................................. 1

B7.1 FIELD EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

B7.1.1 Responsibilities ................................................ 1B7.1.2 Calibration Procedures .......................................... 2B7.1.3 Maintenance Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

B7.2 LABORATORY INSTRUMENTS ........................................ 3

B8 REQUIREMENTS FOR INSPECTION AND ACCEPTANCE OFSUPPLIES AND CONSUMABLES ...... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

B9 DATA ACQUISITION REQUIREMENTS (NONDIRECT MEASUREMENTS) ............ 1

B9.1 COMPUTER SOFTWARE AND PROGRAMS .............................. 1B9.2 COMPUTER DATA MANAGEMENT ..................................... 1

B10 DATA MANAGEMENT ........................................................ 1

Cl ASSESSMENT AND RESPONSE ACTIONS ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Delatte MetalsRegion 6 QAPPSection: A2Revision: 00Date: March 26,1999Page: ivofv


Section Eage

C2 REPORTS TO MANAGEMENT .................................................. 1

Dl DATA REVIEW AND REDUCTION REQUIREMENTS .... . . . . . . . . . . . . . . . . . . . . . . . . . . 1

D2 VALIDATION AND VERIFICATION METHODS ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

D2.1 DATA VALIDATION RESPONSIBILITIES ................................ 1D2.2 DATA VALIDATION PROCEDURES ..................................... 1

D3 RECONCILIATION WITH DATA QUALITY OBJECTIVES .......................... 1

REFERENCES... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Delatte MetalsRegion 6 QAPPSection: A2Revision: 00Date: March 26,1999Page: vofv


FIGURESFigure Page

A5-1 ORGANIZATION CHART .................................................. 3

A6-1 SITE LOCATION MAP ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

TABLES

Table Page

A7-1 SUMMARY OF SAMPLE COLLECTION... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

A8-1 ANALYTICAL METHODS .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

A8-2 ANALYTEQUANTITATTON LIMITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

A8-3 DATA QUALITY INDICATORS FOR LABORATORY DATA ................... 13

B2-1 TETRATECH FIELD STANDARD OPERATING PROCEDURES ................. 2

B2-2 REQUIRED SAMPLE VOLUMES, CONTAINERS, PRESERVATIONTECHNIQUES, AND HOLDING TIMES ...................................... 4

B5-1 FREQUENCY OF FIELD QUALITY CONTROL SAMPLE COLLECTION PLAN ..... 2

Delatte MetalsRegion 6 QAPPSection: A3Revision: 00Date: March 26,1999Page: iofii

A3 ACRONYMS AND ABBREVIATIONS

f^-g/kg Micrograms per kilogram/•fg/L Micrograms per liter

CLP EPA Contract Laboratory Program

DOC Dissolved organic carbonDQA Data quality assessmentDQO Data quality objective

EPA U.S. Environmental Protection AgencyESI Expanded site inspection

FS Feasibility studyFSP Field sampling plan

GC Gas chromatographyGFAA Graphite furnace atomic absorption

HAZCO HAZCO Services, Inc.HC1 Hydrochloric acidHN03 Nitric acidHWD LDEQ Hazardous Waste Management Division

IASD Inactive and Abandoned Sites DivisionICP . Inductively-coupled plasmaIDL Instrument detection limitIDW Investigation-derived waste

L LiterLCS Laboratory control sampleLCSD Laboratory control sample duplicateLDEQ Louisiana Department of Environmental Quality

MCAWW Methods for Chemical Analysis of Water and WasteMD Matrix duplicateMDL Method detection limitmL Millilitermg/L Milligrams per literMS Matrix spikeMSD Matrix spike duplicate

Delatte MetalsRegion 6 QAPPSection: A3Revision: 00Date: March 26,1999Page; BofB

ACRONYMS AND ABBREVIATIONS (Continued)

NA Not applicableNaOH Sodium hydroxide

OSWER Office of Solid Waste and Emergency Response

PRC . PRC Environmental Management, me.

QA Quality assuranceQAPP Quality assurance project planQC Quality controlQMP Quality management plan A3

RAC Response Action ContractRCRA Resource Conservation and Recovery ActRECAP Risk Evaluation/Corrective Action ProgramRI Remedial investigationRPD Relative percent differenceRSD Relative standard deviation

SAS Site Assessment SectionSOP Standard operating procedureSOW Statement of workSVOC Semivolatile organic compound

TAL Target analyte listTBD To be determinedTCL Target compound listTDS Total dissolved solidsTetraTech Tetra Tech EM me.TOC Total Organic CarbonTPH Total petroleum hydrocarbonsTPH-DRO Total petroleum hydrocarbon diesel range organicsTPS-GRO Total petroleum hydrocarbon gasoline range organicsTRV Toxicity reference value

VOA Volatile organic analysisVOC Volatile organic compound

Delatte MetalsRegion 6 QAPPSection: A4Revision: 00Date: March 26,1999Page: lofl

A4 DISTRIBUTION LIST

C.S. Environmental Protection Agency

Name: Stephen TzhoneTitle: U.S. Environmental Protection Agency Region 6

Work Assignment Manager

Name:Title:

Alva SmithU.S. Environmental Protection Agency Region 6Quality Assurance Officer

Tetra Tech EM Inc.

Name:Title:

Name:Title:

Name:Tide:

William Desmond, Ph.D.Tetra Tech EM Inc. Quality Assurance Officer

Lou Baririka, 'PS.Tetra Tech EM Inc. Program Manager

Christina RigginsTetra Tech EM me. Project Manager

Delatte MetalsRegion 6 QAPPSection: A5Revision: 00Date: March 26,1999Page: 1 of 3

A5 INTRODUCTION

Tetra Tech EM Inc. (Tetra Tech), received work assignment 025-RICO-06DP, from the U.S.Environmental Protection Agency (EPA), under Response Action Contract (RAC) 68-W6-0037. Underthis work assignment, Tetra Tech is directed to conduct a remedial investigation and feasibility study(RI/FS) at the Delatte Metals Superfimd site, Tangipahoa Parish, Ponchatoula, Louisiana. Tetra Tech hasprepared this quality assurance project plan (QAPP) as required by an EPA RAC statement of work(SOW) for RI/FS, dated September 30,1998 (U.S. EPA 1998a). This version of the QAPP includesAddendum No. 1, which covers the collection of soil and ground water samples at the Delatte Metalssite. The period of performance expires on September 30,1999. Tetra Tech will provide all personnel,services, materials, and equipment needed to provide the required management, investigative sampling,and analytical support

EPA requires that all environmental monitoring and measurement efforts mandated or supported by EPAparticipate in a centrally managed quality assurance (QA) program. Any party that generates data underthe QA program is responsible for implementing minimum procedures to ensure mat the precision,accuracy, completeness, sensitivity, comparability, and representativeness of its data are known anddocumented. To ensure that this responsibility is met, each party must prepare a QAPP for eachenvironmental data collection effort mat it is contracted to complete. This project-specific QAPP wasprepared in accordance with the format outlined in Tefra Tech's generic RAC QAPP (PRCEnvironmental Management, me. [PRC] 1996a). It complies with all requirements of "EPARequirements for Quality Assurance Project Plans for Environmental Data Operations" (U.S. EPAQA/R-5) (U.S. EPA 1997) and includes the four major areas and 25 elements that are described in theguidance.

This QAPP presents the overall project descriptions, organization and responsibilities, and qualityobjectives and criteria for sampling and analytical services that will be provided in support of RI/FSactivities at the Delatte Metals Superfimd site. This plan includes QA and quality control (QC)requirements for data collection associated with the RI/FS. This plan serves as the basis for ensuring thatdata quality objectives (DQO) for the project are met. The overall objectives of the RI/FS are to collectsufficient data to characterize risk to human health and the environment, and enable selection of aremedy that will eliminate, reduce, or control risks to human health and the environment. Specificproject goals for this work assignment are to (1) collect and analyze samples of soil, sediment, surface

Delafte MetalsRegion 6 QAPPSection: A5Revision: 00Date: March 26,1999Page: 2 of 3

water, ground water, biological tissue, and solid and liquid investigation-derived wastes (IDW) toidentify and quantify concentrations of current contaminants of concern (COC); (2) perform human andecological risk assessments by comparing contaminant concentrations to risk-based toxicity benchmarks;and (3) use analytical results to identify a suitable remediation technology for mitigating contaminantconcentrations that pose unacceptable risk. Data quality addressed in mis QAPP will be sufficient tosupport the aforementioned project goals. QA/QC requirements are provided in mis QAPP and in mefield sampling plan (FSP) (Tetra Tech 1999a), and activities associated with health and safetyrequirements are provided in the health and safety plan (Tetra Tech 1999b).

Many of the sampling and analytical standard operating procedures (SOP) that are described in thegeneric RAC QAPP are broadly applicable and are referenced in mis QAPP. Other project-specificprocedures are included in the site-specific FSP mat has been prepared for the Delatte Metals Superfimdsite (Tetra Tech 1999a). The site-specific FSP will be used as part of this QAPP and is incorporated, byreference, into this QAPP.

The QC procedures included in this QAPP are based on site information (1) provided by EPA Region 6,Dallas, Texas, and (2) garnered by Tetra Tech during a preliminary site visit. These procedures may bemodified before work at the site is completed.

Tetra Tech will perform all tasks under mis work assignment in accordance with the RAC qualitymanagement plan (QMP) (PRC 1996b). Mr. Lou Barinka is the Tetra Tech Region 6 RAC programmanager. Mr. Barinka is responsible for the implementation and completion of the project. Dr. WilliamDesmond is the Tetra Tech RAC QA officer. Dr. Desmond is responsible for the quality of workproduced by Tetra Tech and its subcontractors. Ms. Christina Riggins is the Tetra Tech project manager.Ms. Riggins is responsible for implementing and completing all activities required by the workassignment. Figure A5-1 presents me proposed project organization for the field investigation. TetraTech will subcontract several of me tasks described under the EPA SOW, such as off-site analyticalservices. Subcontractors will be required to adhere to the QA and QC requirements outlined in thisQAPP. Subcontractors will provide QAPPs to support data collection for their portion of the work.

,i

• . ^»————————^ ^

PROGRAM MANAGER | . -^1 LOU BARINKA I

j ^ . , - r

^^^^^^^^^^^^^^^^^^^^^ • _________________ i . ' ; \

( P R O J E C T M A N A G E R | ( Q A OFFTCTR ^iCHRISTINA RIGGINS |————————————————————— wnflAM nESMONn I^ FERNANDO ITURRALDE } ^ WILLIAM DESMOND J _

. , , 1

f SAMPLE MANAGER \ ( FIELD MANAGER | f "J^™-^ 1I JOHN FINNELL I [ JERRY FAUCHEUX « [ LUES VEGA J

.^GROUND WATER "^ ^^^^ /<« r, »T11111!1' . /^^^DRILLING ' ^( COORDINATOR J ( GEOPROBE COORDINATORS ( COORDINATOR 9"^^STEVE SINITIERE^--^ Y^^CEDRIC CASCIO^^^ Y^^TROY NAQUII?^^^

pi____________________________[___________________________L.

DELATTE METALSPONCHATOULA, LOUISIANA

FIGURE A5-1; ORGANIZATION CHART; —————————————————————

h|3 Tetra Tech EM Inc.

3 OF 3Ml.!-


A6 PROBLEM DEFINITION AND BACKGROUND

The site includes the inactive Delatte Metals facility and the abandoned North Ponchatoula Battery site,which are collectively known as the Delatte Metals Superfund site. The Delatte Metals facility consistsof about 17.6 acres at 19113 Weinberger Road (previously 1540 Wemberger Road), Ponchatoula,Tangipahoa Parish, Louisiana. The site is about 5.5 miles south-southeast ofHammond, Louisiana, and1.5 miles southeast of Ponchatoula, Louisiana (Figure A6-1).

During the 1960s, the Delatte Metals facility began conducting battery recycling and smelting operationsunder the name Delatte and Fuscia Battery Company. In the early 1980s, the facility name was changedto Delatte Metals, hie. In 1982, Delatte Metals submitted a closure plan to the Louisiana Department ofNatural Resources for an on-site acid neutralization pond. In 1984, the Louisiana Department ofEnvironmental Quality (LDEQ) Hazardous Waste Management Division (HWD) conducted a siteinspection, which identified the facility as a hazardous waste treatment, storage, and disposal facility.Subsequently, Delatte Metals submitted its second hazardous waste site closure plan to LDEQ (U.S. EPA1998a).

In January 1987, an LDEQ HWD inspection revealed unauthorized activities, including surface dischargeof caustic water and an unpermitted injection of caustic water that was undertaken in an attempt toneutralize acidic ground water. In April 1987, Delatte completed its closure of the acid neutralizationpond. Later that year, IT Corporation, a consultant to Delatte Metals, submitted a site investigation andground water monitoring plan and installed eight monitoring wells at the site; however, inSeptember 1989, after an inspection, LDEQ cited Delatte Metals for failing to implement ground watermonitoring, m March 1990, LDEQ ordered Delatte Metals to define the extent of subsurfacecontamination and submit a ground water remediation plan to LDEQ by October 1992. Delatte Metalssubmitted the information, and LDEQ approved the plan in May 1993 (U.S. EPA 1998a).

In March 1994, LDEQ HWD issued an administrative order to Delatte Metals regarding control andremediation of waste piles at the facility. A July 1994 EPA Region 6 Resource Conservation andRecovery Act (RCRA) compliance evaluation inspection revealed numerous violations, including

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Delatte MetalsRegion 6 QAPP 0Section: A6 0Revision: 00 ^Date: March 26,1999 QQPage: 3 of 3 -

(1) unpermitted storage of hazardous waste, (2) failure to submit annual or biannual reports,(3) inadequate closure plans, and (4) inadequate financial assurance for closure. In March 1995, LDEQdenied Delatte Metals' hazardous waste operating permit application. Although smelting operationsceased at the site, Delatte Metals continued as a limited use battery collection and transfer station, mMarch 1996, LDEQ HWD referred the site to the LDEQ Inactive and Abandoned Sites Division (IASD).In June 1996, LDEQ IASD referred the site to the EPA Site Assessment Section (SAS). EPA SAScompleted a site investigation in March 1997 and began an expanded site inspection (ESI) in October1997. The ESI resulted in a removal assessment, which was conducted in March and April 1998.Delatte Metals, Inc., is currently operating in a limited capacity at the facility as a scrap metal dealer.


A7 DESCRIPTION OF PROJECT AND TASKS

The overall objective of the RI/FS is to collect sufficient data to characterize risk to human health andthe environment, and to enable selection of a remedy that will eliminate, reduce, or control these risks.Tetra Tech will accomplish this objective by collecting samples of soil, ground water, solid and liquidIDW, and analyzing them for COCs. The COCs at Delatte Metals Superfund site are metals, cyanide,and pH; however, some samples will also be analyzed for volatile organic compounds (VOC),semivolatile organic compounds (SVOC), total petroleum hydrocarbons (TPH), total dissolved solids(TDS), sulfate, sulfite, total sulfide, total organic carbon (TOC), dissolved oxygen, hardness,conductivity, and temperature.

In accordance with the QC requirements set forth in this QAPP, data collected from these analyses willbe used to perform human and ecological risk assessments. After the COCs and their associated riskshave been characterized, a suitable remediation technology will be proposed for mitigating human orecological risks. The Delatte Metals Superfund Site Work Plan (Tetra Tech 1998b) describes, in detail,the individual activities that are required to accomplish the project goals.

Tetra Tech will perform the following tasks and subtasks as directed by EPA:

• Provide project planning support.

• Develop and update site-specific plans.

• Provide ongoing project management.

• Procure subcontractors.

• Conduct field investigation.

• Analyze samples.

• Validate analytical data.

• Evaluate analytical data.

• Perform human and ecological risk assessments.

• Submit testing plans for treatability study.


• Prepare an RI report.

• Perform screening of remedial alternatives.

.• Evaluate remedial alternatives.

• Prepare an FS report.

• Prepare a combined RI/FS Report.

• Provide negotiation support.

• Provide meeting support.

• Complete and close out the work assignment.

The EPA work assignment manager established the project schedule, including timelines and milestonedates, that are included in the SOW, dated September 30,1998 (U.S. EPA 1998a). This QAPP identifiesthe project objectives, personnel and equipment requirements, assessment tools, required records, andreports. Table A7-1 summarizes the sampling design that is outlined in the site-specific FSP. The firstmobilization to the Delatte Metals site for the field investigation was completed in January 1999. ThisQAPP describes the mobilization to the Delatte Metals site for the field investigations scheduled to beginin March 1999.

002190Delatte MetalsRegion 6 QAPPSection: A7Revision: 00Date: March 26,1999Page: 3 of 4

TABLE A7-1SUMMARY OF SAMPLE COLLECTION

: ^Sample: .Matrix

Soil

Ground Water

Solid andLiquid IDW

Sampling tTeclmique :;;

Drill rig, handauger', orGeoprobe™

Geoprobe™,pumps, ordisposablebailersPolyethylenebeaker

'-:.:.•^...-..";•;:,:/•;"^• •::,•:.. ;;^:•.;•:•;:. :i. 1--..;::• ; • : • : • : . . . ; ; ^^AnalytkalParanwter;.-; • ,:.1:::- :-\ • • . . .

TAL metals, cyanide, sulfate, sulfite, pH, TOC,anion/cation exchangeTCL VOCs, TCL SVOCs, TPH'TAL metals (filtered), pH, cyanide, sulfate, sulfite,TDS, hardnessTCL VOCs, TCL SVOCs, TPH°

TAL metalsTCL VOCs, TCL SVOCsReactivitypH

Nuniberof^ Samples^ :.

1016

495138

63

TBDTBDTBDTBD

": '. '.:" ''•:^. >'•" ••" -^ :-"..''"''

'-VfSMSJy^

1/20

1/201/20

1/20

1/201/20NANA

.: : Number; of (/''..Field;"'".':I.Dupiicate!1

102

5014

7

1/201/201/201/20

1 1/20 I

QC Samples :;Equipment

.^•"Rinsaf^r'102

5014

7

' 1/201/201/201/20

1 1/2<? I

"• .. ' , .•• " • • ' . .\:.• ' •""

Trip Blank':

NA

I/coolerNA

I/cooler

NAI/cooler

NANA

Total :

Nambeppf:^Samples^

1220

595173

77

TBDTBDTBDTBD


002191

TABLE A7-1 (Continued)

SUMMARY OF SAMPLE COLLECTION

Notes:

DOC Dissolved organic carbonIDW Investigation-derived wasteMS Matrix spikeMSD Matrix spike duplicateNA Not applicableTAL Target analyte listQC Quality controlSVOC Semivolatile organic compoundTBD To be determinedTDS Total dissolved solidsTOC Total organic carbonTPH Total petroleum hydrocarbonsVOC Volatile organic compounda These numbers are estimates and may change, depending on field conditions.b MS and MSD samples will be analyzed for VOCs, SVOCs and TPH only; all others will have MS and laboratory duplicates.c Equipment rinsates will be collected only when nondedicated or nondisposable equipment is reused after decontamination.d Trip blanks will be included in each cooler containing liquid samples that are being analyzed for VOCs.

J____TPH for diesel and gasoline will be analyzed by gas chromatography.___________________________

Delatte MetalsRegion 6 QAPPSection: A8Revision: 00Date: March 26,1999Page: lofl7

A8 QUALITY OBJECTIVES AND CRITERIA FOR MEASUREMENT DATA

EPA's DQO process is a systematic planning tool that is designed to ensure that the measurement datacollected are of the type, quantity, and quality that are the most appropriate for supporting the decisionsthat will be based on these data. The DQO process is used for all data collection activities that areconducted under the EPA Region 6 RAC program so that program resources are used in the most cost-effective manner. This section outlines data categories that are appropriate for this project.

A8.1 DATA CATEGORIES

The EPA Superfund program has developed two descriptive data categories (U.S. EPA 1993) to assist ininterpreting data; (1) screening data, and (2) definitive data. The particular type of data to be generatedwill depend on the qualitative and quantitative DQOs that are developed for a project.

Screening data are generated by rapid, less precise, analytical methods that require less rigorouspreparation of samples. Screening data provide analyte identification and quantification, although thequantification may be relatively imprecise. Such data must be scientifically defensible; however, they donot necessarily need to withstand legal scrutiny in court proceedings. Screening data requiredocumented adherence to SOPs, good laboratory practices, and appropriate levels ofQC, in terms ofreference samples and standards, instrument calibration, and data review and validation.

Definitive data are generated by using rigorous analytical methods, such as EPA reference methods.Definitive data are analyte-specific, and the analytical methods that are used produce tangible raw data,such as paper printouts or computer-generated electronic files. Defined limitations and attributes of thedata are fully developed by documenting control of measurement systems, calibrating instruments, andincluding reference standards before and after unknown measurements. Definitive data can be generatedat a site or in an off-site laboratory, ifQA/QC requirements are satisfied.

For this project, screening and definitive data will both be produced. Table A8-1 presents the screeningand definitive methods to be used. Screening level data will be used to (1) identify locations at whichdefinitive samples will be collected, or (2) verify that water quality has stabilized in monitoring wellsduring well development Only definitive data will be used to support the RI, risk assessment, and FS.

Delatte MetalsRegion 6 QAPPSection: A8Revision: 00Date: March 26,1999Page; 2 of 17

TABLE A8-1

ANALYTICAL METHODS

Sampler: ;;~ Medium';:

Soil

GroundWater

Solids andLiquidIDW

.:: /^•/".'^Paraineter,. -.:•:': ;L:::

TAL MetalspH, cyanide, sulfate, and sulfite

TCLVOCsTCL SVOCsTPH-GROTPH-DROTOCAnion/cation exchangeTAL Metals (filtered)pH, cyanide, sulfate, sulfite, andhardness

TCLVOCsTCL SVOCs'TPHTDSpH, conductivity, temperature,and dissolved oxygenSulfide, and dissolved oxygen

TAL MetalsVOCsSVOCspHReacitivity, and ignitability

Screening Method

NANA

proNANANANANANANA

proNANANAWater quality meter*

Chemet ColormetricTest Kit**NANANATest PaperNA

• ' : ' : \. ..—•:^'..: ^rftnitlve'Mei^^

SW-846 Methods 6010B and 7000ASW-846 Methods 9045C, 9014,9056, andStandard Methods 4500 (sulfite)'SW-846 Methods 5035 and 8260BSW-846 Methods.3550B and 8270CSW-846 Methods 5035 and 8015 ModifiedSW-846 Method 8015 ModifiedSW-846 Method 9060SW-846 Method 8081SW-846 Meftiods 6010B and 7000ASW-846 Methods 9045C, 9056,9014, StandardMethods 4500 (sulfite)", and Standard Methods2340C(EDTA)"SW-846 Methods 5032 and 8260BSW-846 Methods 3520B and 8270CSW-846 Method 8015 modifiedEPA Method 160.1"SW-846 Method 9040B, 9050A, and EPAMethod 170.1Sulfide Chemet and Dissolved Oxygen Chemet

SW-846 Methods 6010B and 7000ASW-846 Methods 5021 and 8260BSW-846 Methods 3520C and 8270CSW-846 Method 9041ASW-846 Volume 1, Chapter 7, and SW-846Method 1010



ANALYTICAL METHODS

Notes:

**

DOCEPAIDWNAprosvocSW-846TALTCLTDSTOCTPH-DROTPH-GROVOC

Horiba U-10 water quality meter will be used for field measurements ofpH, conductivity, temperature,and dissolved oxygen. The water quality monitor will be used to (1) verify that water quality hasstabilized in monitoring wells during well development and (2) determine the pH, conductivity, andtemperature of (he ground water samples. Only definitive data will be used to support the RI, riskassessment, and FS.Chemet Colonnetric Test Kit will be used for field measurement ofsulfide and dissolved oxygen.

Dissolved organic carbonU.S. Environmental Protection AgencyInvestigation-derived wasteNot applicablePhotoionization detectorSemivolatile organic compound•Test Methods for Evaluating Solid Waste, Physical/Chemical Methods" (U.S. EPA 1996c)Target analyte listTarget compound listTotal dissolved solidsTotal organic carbon

Total petroleum hydrocarbons diesel range organicsTotal petroleum hydrocarbons gasolene range organics

Volatile organic compound

American Public Health Association. 1989. "Standard Methods for the Examination of Water and Wastewater."Published jointly with American Water Works Association and Water Pollution Control Federation. SeventeenthEdition.U.S. EPA 1983. "Methods for Chemical Analysis of Water and Wastes." EPA 600/4-49-020. March.

Delatte MetalsRegion 6 QAPPSection: A8Revision: 00Date: March 26,1999Page; 4 of 17

A8.2 DATA QUALITY OBJECTIVES

The overall QA objective for the project is to implement procedures for field sampling, chain of custody,laboratory analysis, and data reporting that will provide results of known quality that can support the RI,human health risk assessment, ecological risk assessment, and FS. The primary problems identified withthis site for which the data will be used are as follows:

• The type and extent of contamination in site media and biological tissues must bedetermined.

• The type and quantities of media that pose an unacceptable risk to human health and theenvironment must be determined.

• The remedial technology that will mitigate risk to human health and the environmentmust be selected.

In order to address each of these problems, definitive data that can be validated must be produced. If thesampling data does not meet the criteria for data quality, the sampling event and analysis will bereevaluated to determine where the process failed. If upon reevaluation the data is not of sufficientquality to address the decisions above, either the analysis, sample collection, or both will be repeated toreduce data uncertainty to an acceptable level. For all decision-making analytical methods listed inTable A8-1, a definitive method has been selected. Methods used to determine well-development (suchas pH, conductivity, and temperature) may be performed as screening methods in the field. Othersections of this QAPP describe specific procedures for sampling, chain of custody, laboratory instrumentcalibration, laboratory analysis, reporting of data, internal QC, audits, preventive maintenance of fieldequipment, and corrective action. Sampling design is discussed in detail in the site-specific FSP (TetraTech 1999a).

Data quality depends on the intended use of the data and the decisions that are to be made based on thedata. For projects that require data collection, Tetra Tech has followed the EPA DQO guidance (U.S.EPA 1993 and 1994b). The DQO process provides a systematic procedure for defining the criteria that a

Delatte MetalsRegion 6 QAPPSection: ASRevision: 00Date: March 26,1999Page: 5 of 17

data collection design should satisfy and is a preliminary step in developing project-specific QAPPs.Based on the project objectives and information known about the site, the following DQOs weredeveloped for soil, ground water, and solid and liquid IDW at the Delatte Metals site.

A8.2.1 DQOs for Soil Samples

For soil sampling, me decisions that must be made with data are as follows:

• Identify, locate, and determine concentrations ofCOCs in on-site surface and subsurfacesoil, and in surface soil in wetland areas located adjacent to, and west of, me site.

• Determine whether concentrations exceed EPA Region 6 risk-based media screeninglevels (U.S. EPA 1996b) and LDEQ Risk Evaluation/Corrective Action Program(RECAP) soil screening standards (LDEQ 1998) to characterize the risks to the health ofhuman populations.

• Evaluate data against soil invertebrate and terrestrial plant toxicity reference values(TRV) (U.S. EPA 1998b) and LDEQ RECAP soil screening standards (LDEQ 1998) tocharacterize the risk to soil environments.

• Calculate ecological dose estimates (U.S. EPA 1998b) to characterize the risk to uppertrophic level receptors.

• Evaluate soil conditions and contaminants to select a suitable remediation technology.

In order to provide data to address the decisions above, soil samples will be collected for the analyticalparameters listed in Table A8-1. Table A8-2 presents the preferred quantitation limits. Each


TABLE A8-2

ANALYTE QUANTITATION LIMITS

^^^^'i^^^ll^^^

^^ct ' -'.^^ 'i^^An^AluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseMercuryNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZincCyanide, total (SW-846 9014): • ' . • ' • • ' ? ; • . • :•• • . - . . ' . . . •::":;'/-'•,::;-:':".-, : : : : : : Other inorganAnion/cation exchange (SW-846 8081)Sulfate (SW-846 9056)Sulfite (Standard Methods 4500)Total organic carbon (SW-846 9060)Hardness (Standard Methods 2340C (EDTA))Total dissolved solids (EPA Method 160.1)

'•...': ;'.:" •:•• ::•:Target Compound List - Volatile Organic CAcetone

. : : : . . : : Preferred Det<'...-..;.:....::.." Ground .Water;;' ",(SW-846 6010B/7000A)(pg/L;

306.010

1.004.05.06.74.75.03.64.12.520

0.930.010.6210

0.980.119

1.265.00.821.00

lies (mg/L; nig/kg) :--0.52.0--1.010

:omponnds (SW-846 5035/8260]5.6

ection Limits .,; ;;.•;:.:,::.',.,:;.: ;,;;r.''':.:.';;.' ^^:!.-;;:' ,;; ':/"^sfl^^d^^f''^ "^•^•^

10.00.50.050.040.0040.005

100.245.00.7410.00.5610.010.00.050.6210

0.980.31001.265.00.821.0

'.^ : "• •,'',':•': '•'."-'-"..' /...: .:i.'.'...''. -^.'}'':.".".' •'.' • :•

5 meq as Na0.52.010----

ByQig/Lsug/kgy- : ., •., : • : : : : .1,000



ANALYTE QUANTTTATION LIMITS

;: ::; ^:^

AcrylonitrileBenzeneBromodichloromethaneBromoformBromomethane2-ButanoneCarbon disulfideCarbon tetrachlorideChlorobenzeneChloroefhaneChloroformChloromethaneCrotonaldehydeDibromochloromethane1, l-Dichloroethane1,2-Dichloroethane1,1 -Dichloroefhenecis-l,2-Dichloroethenetrans-1,2-Dichloroefhene1,2-Dichloropropanecis-1,3-Dichloropropenetrans-1,3-DicMoropropene1,4-DioxaneEthyl benzene2-Hexanone4-Methyl-2-pentanone •Methylene chlorideStyrene1,1,2,2,-TetrachloroethaneTetrachloroefheneToluene1,1,1-Trichloroethane1,1,2-TrichloroethaneTrichloroetheneVinyl acetateVinyl chlorideXylene, total: ' ;; Target Compound List - Semivolatile OrgaAcenaphtheneAcenaphthylene

: Preferred Det-. -t^-:;; G^nd Viator]:;!:;;-;';.:;

100.51.61.8

0.877.42.51.41.45.92.41.5101.72.21.72.92.02.22.21.41.5101.54.63.53.11.40.51.41.01.82.11.611.82.01.5

mic Compounds (SW-846 8270(1010

ection Limits yv^. '.^ ' J.'..:.. /. 1^^y^^^:^

1301.51.41.54.910.02.01.51.46.01.86.61001.52.01.53.22.31.42.11.01.0142.83.64.64.01.41.01.63.31.71.71.710.05.03.0

Ofugfli,; ft/kg) " A1010




^:: ' "^ ' ^-'A' ^ '::. ^;;::'; ^ ,. ;.

AnilineAnthraceneBenzo(a)anthraceneBenzo(a)pyreneBenzo(b)fluoranfheneBenzo(g,h,i)peryleneBenzo(k)fluorantheneBenzoic acidBenzyl alcohol4-Bromophenyl-phenyletherButylbenzylphthalateCarbazole4-Chloro-3-methylphenol4-Chloroanilinebis(2-Chloroethoxy)methanebis(2-Cailoroefhyl)etherl)is(2-Chloroisopropyl)ether2-Chloronaphthalene2-Chlorophenol4-Chlorophenyl-phenyletherQiryseneDibenzofuranDibenz(a,h)anthracene1,2-Dichlorobenzene1,3-Dichlorobenzene1,4-Dichlorobenzene3,3'-Dichlorobenzidine2,4-DichlorophenolDiethylphthalate2,4-DimethylphenolDimethylphthalateDi-n-butylphthalate4,6-Dinitro-2-methylphenol2,4-Dinitrophenol2,4-DinitrotolueneDi-n-octylph&alatebis(2-ethylhexyl)phthalateFluoranfhene

.. :': : :. :.:. Preferred .Det• " • • • .. Gi^nd.Water'J:.' ;''

10100.20.20.2

10.8101010311010101010103101

2.41

1010101010310310107.37.331

10

ection Limits •;.v^^ •:::- •;. ;,:'..: r'.-. '-' ^SoB:;:^:^^^^^

101022210210101010101010103101010102

. 10210101010101010101010101010210



ANALYTE QUANTTTATION LIMITS

^^•^/îllQg^mtyt^

FluoreneHexachlorobenzeneHexachlorobutadieneHexachlorocyclopentadieneHexachloroethaneIndeno(l,2,3-cd)pyreneIsophorone2-MelhyInaphthalene2-Methylphenol4-Methylphenol'Naphthalene2-Nitroaniline3-Nitroaniline4-Nitroan.ilineNitrobenzene2-Nitrophenol4-NitrophenoIN-Nitroso-di-n-propylamineN-NitrosodiphenylaminePentachlorobenzenePentachlorophenolPhenanthrenePhenolPyrenePyridine1,2,4-Trichlorobenzene2,4,5-Trichlorophenol2,4,6-Trichlorophenol.Â^.^ .^^^^^.^TotalêtroIerim'Sydrocarbons (STPH-DROTPH-GRO

:; • •••::•" y" •::..: •••••• Preferred Det''••;;." Ground Water"'' ^ .'.'••

101

0.855.20.790.41010101010101.810101010101011

6.3101010101010

W-84680l5B\Moamed)(HgA^150150

ecTOn'Iiiilttit^î^.:;.-: •:W^:ssiaM^;':^'^

10222102101010101010101010101010102210101010101010

P W ' : ' : ' - : ^ ^ ^ : ' ^ ^6,5006,500




Notes:

Not applicableEPA U.S. Environmental Protection Agencykg KilogramL Literu.g Microgrammeq Molar equivalentmg MilligramSVOC Semivolatile organic compoundSW-846 "Test Methods for Evaluating Solid Waste, Physical/Chemical Methods" (U.S. EPA 1996c)TPH-DRO Total petroleum hydrocarbons diesel range organicsTPH-GRO Total petroleum hydrocarbons gasoline range organicsVOC Volatile organic compound

_^____Analytical methods are referenced in Table A8-1.____________________________

Delatte MetalsRegion 6 QAPPSection: A8 0Revision: 00 °Date: March 26,1999 ^Page: 11 of 17 0

Is)quantitation limit represents the lowest value among the applicable RECAP soil screening standards,human health screening levels and ecological TRVs. The study boundaries include the seasonallyflooded wetlands on the east side of the site, the west side of Selsers Creek, the north property boundary,and the south property boundary.

The decision-maldng factors regarding soil sample data are as follows:

• Soil data will be used to evaluate human health and ecological risk. If the analysisshows unacceptable risk, then the location will be considered contaminated.

• If soil is determined to pose an unacceptable risk (from me decision above), then datawill be used to evaluate the feasibility of remedial alternatives.

A8.2.2 DQOs for Ground Water Samples

For ground water sampling, the decision that must be made with data is whether the concentrations ofanalytes in the ground water exceed applicable RECAP ground water screening standards (LDEQ 1998),EPA Region 6 risk-based media screening levels (U.S. EPA 1996b), and drinking water maximumcontaminant levels (U.S. EPA 1998b). In order to provide data to address the decision above, groundwater samples will be collected for the analytical parameters listed in Table A8-1. Table A8-2 presentsthe quantitation limits preferred for these risk based decisions. The study boundaries include the DelatteMetals facility boundaries.

The decision-making factors regarding ground water sample data are as follows:

• Ground water data will be used to evaluate human health risk. If the analysis showsunacceptable risk, then the location will be considered contaminated.

• If ground water is determined to pose an unacceptable risk (from the decision above),then data will be used to evaluate the feasibility of remedial alternatives


A8.2.3 DQOs for BOW Samples

For IDW sampling, fhe decisions that must be made with data are as follows:

• Determine whether the waste is considered hazardous according to RCRA characteristicsofignitability, corrosivity, reactivity, and toxicity.

In order to provide data to address me decisions above, IDW samples will be collected for the analyticalparameters listed in Table A8-1. The quantitation limits required for hazardous characteristicsdetermination are as follows: (1) ignitability 0.1 °F, (2) corrosivity 0.1 pH unit, and (3) reactivity(cyanide) 10 mg/L. To determine the characteristic oftoxicify, me EPA CLP quantitation limits requiredin the protocols for organic and inorganic analyses will be used (U.S. EPA.1994a and 1995). The studyboundaries include aqueous and solid IDW waste that will be collected and stored in containers prior todisposal.

The decision-making factor regarding soil sample data is as follows:

• If IDW sample results exceed fhe hazardous characteristics stated in the decision above,then the waste will be considered hazardous and will require appropriate disposal.

A8.3 QUALITY ASSURANCE INDICATORS

The purpose of this section is to address me level ofQC effort and fhe specific QA objectives for fhe dataquality indicators of sensitivity, accuracy, precision, completeness, representativeness, andcomparability.

The following subsections address me level ofQC effort and general objectives for sensitivity; accuracyand precision; and completeness, representativeness, and comparability of data. Table A8-3 presents fheacceptance criteria for definitive laboratory data, which are based on fhe intended use of me data.


TABLE A8-3

00tsJ

84 .

DATA QUALITY INDICATORS FOR LABORATORY DATA

::,-,Date;Qna]|il!:y;.;.,^,•/I'.. .^/Indicators'^^''.".'Accuracy(Percent recovery)

Precision (Relativepercent difference)

SensitivityCompletenessRepresentativeness

Sensitivity

; • : : : • Analytical Parameter ^

TAL metals', cyanide, sulfate,sulfite, TOC, TDS,anion/cation exchange, andhardnesspHVOCs, SVOCs, and TPH (solidand liquid)

TOC and TDS

Reactivity (aqueous)

Ignitability

TAL metals0, cyanide, sulfate,sulfite, TOC, TDS,anion/cation exchange, andhardnesspH

VOCs, SVOCs, and TPH (solidand liquid)

TOC and TDS

Reactivity (aqueous)

Ignitability

All analytical testsThe objective for data completenThe sampling network and me fiearc representative of site conditio1999a).The use of standard published san

''.. \ ' .OC'Check^an^pig';'?1:"; '

MSLCSBlanks'

Buffer checksMSandMSDLCSandLCSDBlanks"MS and MSDLCSBlanks'MSandMSDLCSBlanks'LCSBlanks'Field duplicates Laboratoryduplicates

Field duplicates LaboratoryduplicatesField duplicatesMSandMSDLCS and LCSDField duplicates LaboratoryduplicatesField duplicates LaboratoryduplicatesField duplicates LaboratoryduplicatesMDL study

ess is 90 percent.Id screening analytical methods forns. See Field Sampling Plan for de

•npling and analytical methods, and

; ^Acceptance eriitena;fb]RLabo]r^- • •" . •; .: •': '•:•'' -'' '•.•.r' '•;. .--,•: '•:•; , •''1.' . •'• •'' '• •'.: ••• '' •'.•'•'' • .'• • ' ..;.•-••;: ;••:•;•;.:;•>,; •::•:. ::Analysis.^"' •' ;••• ••• : "..••;'.' : ' y •75 to 125 percent recovery80 to 120 percent recoveryLess than IDL

±0.1pH units75 to 125 percent recovery80 to 120 percent recoveryLess than IDL75 to 125 percent recovery80 to 120 percent recoveryLess than BDL75 to 125 percent recovery80 to 120 percent recoveryLess than IDL80 to 120 percent recoveryLess than IDL50 percent RPD20 percent RPD (35 RPD solids)

50 percent RPD20 percent RPD (35 RPD solids)50 percent RPD20 percent RPD (35 RPD solids)

50 percent RPD20 percent RPD50 percent RPD20 percent RPD50 percent RPD20 percent RPDSee Table A8-2

this site are designed to provide data thattail on sampling network (Tetra Tech

the use ofQC samples, will ensure data of



DATA QUALITY INDICATORS FOR LABORATORY DATA

Notes:

IDL Instrument detection limitLCS Laboratory control sampleLCSD Laboratory control sample duplicateMDL Method detection limitMS Matrix spikeMSD Matrix spike duplicateNA . Not applicableTAL Target analyte listQC Quality controlRPD Relative percent differenceSVOC Semivolatile organic compoundIDS Total dissolved solidsTOC Total organic carbonTPH Total petroleum hydrocarbonVOC Volatile organic compounda Frequency of QC check sample in Table B5-1b Based on requirements of EPA Contract Laboratory Program protocols (U.S. EPA 1994a and 1995)0 This may include blank spikes, surrogate spikes, method blanks, reagent blanks, instrument blanks, calibration blanks, and

laboratory or field control blanks ____

Delatte MetalsRegion 6 QAPP QSection: AS 0Revision: 00 tDate: March 26,1999 ^Page: 15 of 17 0\

A83.1 Sensitivity

The QA objective for sensitivity is expressed in the form of the mefhod detection limit (MDL) orquantitation limit for the analytical method selected. Section B5.3.4 presents the equation that is used tocalculate the MDL.

These quantitation limits are grouped by matrix as shown on Table A8-2. The preferred quantitationlimits for these analytes are based on the lowest of the applicable ecological TRV (U.S. EPA 1998b),RECAP soil and ground water screening standards (LDEQ 1998), EPA Region 6 risk-basedconcentrations (U.S. EPA 1996b), and drinking water maximum contaminant levels (U.S. EPA 1998b).Quantitation limits reflect the influences of the sample matrix on method sensitivity and are typicallyhigher than detection limits. Quantitation limits indicate the amount of material that is needed toproduce an instrument response that can be routinely identified and reliably quantified.

A8.3.2 Accuracy and Precision

Accuracy is the degree of agreement between an observed value and an accepted reference value.Accuracy is typically expressed as percent recovery from spiked samples or bias with respect to areference standard. The use of spiked samples permits a constant check on method accuracy andprovides an indication of the degree of matrix effect. Section B5.3.2 presents equations that are used tocalculate accuracy in terms of percent recovery.

Accuracy for field sampling will be increased by establishing a sound sampling strategy and followingappropriate SOPs. Field QC samples that are collected to measure accuracy include trip blanks, fieldduplicates, equipment rinsate blanks, and field blanks. Other QC samples such as matrix spike (MS),matrix spike duplicate (MSD), and laboratory duplicate samples are laboratory QC samples mat arecollected in the field.

Accuracy for laboratory analyses will be assessed by collecting and analyzing the types ofQC samplespresented in Table A8-3 and evaluating the results against the criteria listed there. Other laboratorycheck samples are as follows:

Delatte MetalsRegion 6 QAPPSection: A8 §Revision: 00 JDate: March 26,1999 f^Page: 16 of 17 0

• Calibration blanks

• Independent check standards

• Instrument blanks

• Method blanks

• Reagent blanks

• Standard reference materials

• Surrogate spike samples

Precision is a measure of the variability of a measurement system. It is estimated typically by usingduplicate and replicate measurements, and is expressed in terms of relative percent difference (RPD).

Section B5.3.1 presents equations that are used to calculate RPD. For field sampling, precision isincreased by following SOPs and by using identical sampling procedures to collect all samples. FieldQC samples mat are collected to measure precision include duplicate samples and collocated samples.Precision for laboratory analyses will be measured by collecting and analyzing the types of samplespresented in Table A8-3 and evaluating the results against me criteria listed there.

A8.3.3 Completeness, Representativeness, and Comparability

Completeness is measured by comparing the amount of valid data obtained from a measurement systemto me total number of measurements needed to achieve a specified level of confidence indecision-making. After analytical testing has been completed, me percent completeness will becalculated by using the equation that is presented in Section B5.3.3. The completeness objective for fieldand laboratory measurements will be 90 percent.

Representativeness expresses the degree to which data accurately and precisely represent (1) acharacteristic of a population, (2) parameter variations at a sampling point, (3) a process condition, or(4) an environmental condition. Representativeness is a qualitative parameter that depends on the properdesign of the sampling program and proper laboratory protocol. Each sample collected from the site isexpected to be representative of the population or environmental condition from which it was collected.

Delatte MetalsRegion 6 QAPP 0Section: AS °Revision: 00 (\JDate: March 26,1999 0Page: 17 of 17 °°

During development offhe sampling network, the following were considered: (1) past waste disposalpractices, (2) existing analytical data, (3) current and former on-site physical setting and processes, and(4) construction requirements. The site-specific FSP describes the strategy for collecting representativesamples (Tetra Tech 1999a).

Representativeness will be satisfied by (1) ensuring that the project-specific QAPP is followed;(2) ensuring that samples are collected in accordance with appropriate SOPs, or proper samplingtechniques are used when SOPs are not available; (3) following proper analytical procedures; and(4) ensuring mat required holding times are not exceeded in the laboratory.

Comparability expresses the confidence with which one portion or set of data can be compared toanother. Generally, comparability will be attained by achieving the QA objectives, presented in thisQAPP, for sensitivity, accuracy, precision, completeness, and representativeness. Comparability of datawill also be attained by following field and laboratory procedures consistently for individual sites.EPA-approved standard field procedures, such as those discussed in Section B2.1, will be used to themaximum extent possible. EPA-approved laboratory methods will be used to increase the comparabilityof laboratory analytical data.

fc?Delatte Metals ^Region 6 QAPP ^Section: A9 —. ;

Revision: . 00 (3, "Date: March 26,1999 (s) 3Page: lof l t0

^0

A9 PROJECT NARRATIVE

The most current version ofEPA requirements for QAPPs for environmental data operations (U.S.EPA 1997) indicates that a project narrative may be required for some QAPPs. That version states thatthe project narrative applies only to QAPPs that are prepared for the EPA Office of Research andDevelopment. This QAPP is intended for use by EPA Region 6 and Tetra Tech; therefore, it does notinclude a project narrative. The site-specific FSP will provide the project narrative (Tetra Tech 1999a).

Delatte MetalsRegion 6 QAPPSection: A10Revision: 00Date: March 26,1999Page: lofl

A10 SPECIAL TRAINING CERTIFICATION AND REQUIREMENTS

The main training requirements for Tetra Tech personnel who are involved in field activities are theemergency response and hazardous waste operations training requirements that are defined in Title 29 ofthe Code of Federal Regulations Part 1910.120. Tetra Tech personnel and subcontract personnel meetthe specialized training and certification requirements for completing me environmental data collectiontasks mat are described in this QAPP. Further information about Tetra Tech's training program iscontained in Section 4.0 of the QMP for the EPA Region 6 RAC program (PRC 1996b).

Delatte MetalsRegion 6 QAPPSection: All 0Revision: 00 °Date: March 26,1999 [Page: 1 of 3 t-*

All DOCUMENTATION AND RECORDS

This section describes fhe data reporting requirements for Tetra Tech field personnel and laboratoriesthat submit field and laboratory measurement data under the EPA Region 6 RAC program. This sectiondoes not discuss requirements for data validation reports, Data Quality Assessment (DQA) reports, andother QC reports that Tetra Tech prepares or compiles. Sections Cl, C2, Dl, and D2 describes suchreports.

Tetra Tech will require laboratories to prepare and submit data packages in accordance with the EPAContract Laboratory Program (CLP) (U.S. EPA 1994a; 1995) deliverable format (including electronicdata deliverables) for VOC, SVOC, and metals analyses of solid (soil and solid IDW) and aqueous(ground water and liquid EDW) samples. The data packages will include all applicable documentationfor independent validation of fhe data and verification of fhe DQOs. Other tests including gaschromatography (GC) analyses for TPH and inorganic analyses (pH, IDS, hardness, TOC, anion/cationexchange, sulfate, and sulfite) are not addressed by CLP protocol, so me following documentation willbe required for mil data validation:

• Case narratives which will describe all QC nonconformances that are encountered duringanalysis of samples, in addition to any corrective actions that are taken

— Statement of samples received

— Description of any deviations from the specified analytical method

— Explanations of data qualifiers that are applied to the data

— Any other significant problems that were encountered during analysis

• Tables that cross-reference field and laboratory sample numbers

• Chain-of-custody forms pertaining to each sample delivery group or sample batch mat isanalyzed

• Laboratory reports, which must show traceability to fhe sample analyzed and containspecified information

— Project identification

— Field sample number

Delatte MetalsRegion 6 QAPPSection: AllRevision: 00Date: March 26,1999Page: 2 of 3

— Laboratory sample number

— Sample matrix description

— Dates and times of sample collection, receipt at me laboratory, preparation, andanalysis

— Description of analytical method, and reference citation

— Results of individual parameters, with concentration units, including secondcolumn results, second detector results, and other confirmatory results, whereappropriate

— Quantitation limits achieved

— Dilution or concentration factors

• Data summary forms and QC summary forms showing analytical results

— Samples

— Surrogates

— Blanks

— Field QC samples

— Laboratory control samples (LCS)

— Laboratory control sample duplicates (LCSD)

— Initial and continuing calibrations

— Other QC samples

• Laboratory control charts

• • Raw data

— Chromatograms

— Peak areas

— Retention times for GC analyses

— Mass spectra for GC and mass spectrometry analyses

Delatte MetalsRegion 6 QAPPSection: AllRevision: 00Date: March 26,1999Page: 3 of 3

— Instrument printouts

— Laboratory bench sheets for preparation of samples

• MDL study results

• Electronic data, as specified in site-specific data management plan (Tetra Tech 1998a)

The project manager, in cooperation with me QA officer, will define site-specific requirements for datareporting. Requests for analytical services (discussed in Section B4) clearly define these requirements,the turnaround time for receipt of the data deliverables specified, and any requirements for retention of .samples and laboratory records. Laboratory QA managers are responsible for ensuring mat all laboratorydata reporting requirements in the QAPP are met.

All field measurement data will be recorded in field logbooks. All project documents will be retained inthe Tetra Tech document control center, as specified under Tetra Tech's contract for the EPA Region 6RAC program, until EPA requests transfer or disposition of the documents.

Delatte MetalsRegion 6 QAPP 0Section: Bl QRevision: 00 ls>Date; March 26,1999 ^Page: lof2 ^

Bl SAMPLING PROCESS DESIGN

Sampling activities for the project are described in the site-specific FSP (Tetra Tech 1999a), whichdiscusses the sample network design and rationale, including (1) types of samples to be collected,(2) sampling locations, (3) sampling frequencies, (4) sample matrices, and (5) measurement parameters.The sample network design and rationale will be coordinated with the DQO process that is described inSection A8. Table A7-1 summarizes the sampling design that is covered by this QAPP and discussed inthe site-specific FSP (Tetra Tech 1999a). The following subsections summarize the sample networkdesigns for (1) soil, (2) ground water, and (3) solid and liquid DDW.

QA objectives for the sampling and analysis program are as follows:

• Obtain samples that are representative of the media mat are being sampled.

• Obtain a sufficient number of samples to make informed RI decisions.

• Obtain a sufficient amount of representative analytical data to meet sampling objectives.

• Obtain measurements that are of acceptable quality for the intended use of me data.

• Analyze samples by using methods that are appropriate for the intended use of the data.

• Obtain analytical data of a sufficient amount and quality to evaluate human health andecological risk.

»

B1.1 SOIL

The QA objective for soil sampling is to collect sufficient data to identify and quantify the COCs at thesite. The following three methods will be used to collect soil samples:

• Geoprobe™ direct-push technology will be used to collect medium-depth soil samples.

• Drill rigs, outfitted with a hollow-stem auger or direct-push Shelby tubes, will be used tocollect deep soil samples.

Delatte MetalsRegion 6 QAPPSection: BlRevision: 00 0

0Date: March 26,1999 toPage: 2 of 2 b0

About 223 locations have been identified for collection of soil samples by using the Geoprobe™ directpush technology. Geoprobe™ samples will be analyzed for VOCs, SVOCs, TPH (diesel and gasoline),TAL metals, cyanide, sulfate, sulfite, TOC, anion/cation exchange, and pH.

About 30 locations have been identified for collection of soil samples by using powered drill rigs. Theseboreholes will be cased and developed as ground water monitoring wells. Deep well soil samples will beanalyzed for VOCs, SVOCs, TPH (diesel and gasoline), TAL metals, cyanide, sulfate, sulfite, TOC,anion/cation exchange, and pH.

B1.2 GROUND WATER

Ground water samples will be collected at about 138 locations. These locations will include about30 newly-installed monitoring wells, 18 existing monitoring wells, about 88 deep Geoprobe boringlocations, and several recovery and residential wells. Ground water samples from monitoring andrecovery wells will be analyzed for TAL metals, VOCs, SVOCs, TPH (diesel and gasoline), cyanide,sulfate, sulfite, hardness, pH, TDS, conductivity, and temperature. Residential well samples will beanalyzed for TAL metals, TDS, pH, cyanide, sulfate, and sulfite.

B1.3 SOLID AND LIQUID INVESTIGATION-DERIVED WASTE

Tetra Tech will use investigation methods that minimize the production ofIDW. However, during meRI, solid and liquid waste will be generated from various activities, including boring advancement, welldevelopment, decontamination procedures, and storm runoff. This IDW will be collected in labeled55-gallon drums and secured on site. Before disposal of the IDW, composites from several drums ofsimilar material will be analyzed for VOCs, SVOCs, TAL metals, reactivity, ignitability, and pH. Basedon me results of these analyses, Tetra Tech will determine the appropriate method of disposal of theIDW.

Delatte MetalsRegion 6 QAPPSection: B2Revision: 00Date: March 26,1999Page; 1 of 5

B2 SAMPLING METHODS REQUIREMENTS

Sampling procedures for fhe Delatte Metals Superfund site are discussed in detail in the site-specific FSP(Tetra Tech 1999a). This section discusses (1) selection and requirements of sampling methods;(2) requirements for containers, volumes, preservation methods and holding times; and (3) holding times,sample handling and custody requirements. Section B5 discusses requirements for collecting QCsamples.

B2.1 SAMPLING METHODS

Sampling methods and equipment will be selected to meet project objectives. The field sampling teamwill collect samples in accordance with methods described in the site-specific FSP (Tetra Tech 1999a)and the procedures outlined in the field SOPs listed in Table B2-1 and appended to the site-specific FSP(Tetra Tech 1999a). The site-specific FSP describes (1) sampling methods and requirements,(2) methods that will be used to select sampling locations for various matrices, and (3) samplingequipment.

The site-specific FSP (Tetra Tech 1999a) and Data Management Plan (DMP) (Tetra Tech 1998a)describe procedures for providing unique sample identification numbers mat will enable personnel toaccurately correlate analytical results and field information with sampling locations and field monitoring-stations.

Tetra Tech will be responsible for addressing failures in fhe field sampling or measurement systems, andwill implement corrective action in these situations. In general, corrective actions for field sampling andmeasurement failures include recalibration of instruments, replacement of malfunctioning measurementinstruments or sampling equipment, and repeated collection of samples or repetition of measurements.

Delatte MetalsRegion 6 QAPPSection: B2Revision: 00Date: March 26,1999Page: 2 of 5

TABLE B2-1

TETRA TECH FIELD STANDARD OPERATING PROCEDURES

•I^^^^^N' ^ ' ;^^General Equipment Decontamination

Organic Vapor Monitoring

Sampling Soil at Hazardous Waste Sites

Sampling Ground Water

Field Measurement ofpH in Water

Sample Preservation and Maximum Holding

Sample Collection Container Requirements

Sample Custody

Packing and Shipping Samples

Aquifer Pumping Tests

Recording Notes in Field Log Books

Borehole Logging

Borehole Drilling: Hollow Stem Auger Drill

Using the Geoprobe System

Determination of Total Organic Carbon*

)erati

;Time

ing

ng Prpce

iS

dure Tifle •••"••. •"^'^f^^^-^^^ / :::::'SOP::Niiml»er- ^

002

003

005

010

012

016

017

018

019

022

024

026

045

054

Interim

Note:

SOP Standard operating procedure* Interim SOP


B2.2 SAMPLE CONTAINER, VOLUME, PRESERVATION, AND HOLDING TIMEREQUIREMENTS

Table B2-2 specifies the required sample volume, container type, preservation technique, and holdingtime for each analysis that is to be conducted on each sample matrix that is to be analyzed. The tableaddresses aqueous and solid sample matrices, and provides information for organic and inorganicparameters in each matrix. Required containers, preservation techniques, and holding times for field QCsamples such as field duplicates, field blanks, trip blanks, and MS/MSD samples will be me same as forinvestigative samples.

002219Delatte MetalsRegion 6 QAPPSection: B2Revision: 00Date: March 26,1999Page: 4 of 5

TABLE B2-2

REQUIRED SAMPLE VOLUMES, CONTAINERS, PRESERVATION TECHNIQUES, AND HOLDING TIMES

: " 'V' :;.Matrir^ ' • : • ' :

Solids(Soil and Solid IDW)

Aqueous(Groundwater Samples,Rinsates and Liquidrow)

.:" Parameter:; :•;]•':

TAL MetalsMercuryCyanideAnion/cationInorganics''TCLVOC

TPH-GROTCL SVOCTPH-DROTAL MetalsMercuryInorganics1'CyanideTCLVOCsTPH-GROTCL SVOCsTPH-DRO

:^:":.. ' ; ;• .• . : . •iyoluJme.snd^Cph^lner^./^tJ.^^.^'x

One 16-ounce Glass Jar with Teflon™ -Lined CapFrom TAL Metals ContainerFrom TAL Metals ContainerFrom TAL Metals ContainerFrom TAL Metals ContainerSoil: Three 5-gram Encore™ SamplersSoil: Three 5-gram Encore™ SamplersSolid: from TCL VOC Solids ContainerOne 8-ounce Glass Jar (Teflon™-lined Cap)One 8-ounce Glass Jar (Teflon™-lined Cap)One 1-1 Polyethylene BottleFrom TAL Metals ContainerOne 1-1 Polyethylene BottleOne 1-1 Polyethylene BottleThree 40-ml Vials (Teflon™-lined Cap)Three 40-ml Vials (Teflon™-lined Cap)One 1-1 Amber Glass Jars (Teflon™-lined Cap)One 1-1 Amber Glass Jars (Teflon™-lined Cap)

' ; Preservation::':..•.r.' .Tiiectmigite?:.':"::::,Store at 4 °CStore at 4 °CStore at 4 °CStore at 4 "CStore at 4 °CStore at 4 °C

Store at 4 °CStore at 4 °CStore at 4 °CHN03HNO,Store at 4 °CNaOH and AscorbicAcid at 4 °CStore at 4 °CStore at 4 °CStore at 4 °CStore at 4 °C

; ; ; : ' ; ; Holding!'-:', '.: .Extraction:

NA28 Days14 Days7 Days

NA48 Hours6

48 Hours'14 Days14 Days

NA28 Days

NA14 Days

48 Hours"48 Hours"

7 Days7 Days

rime" - : . ' • ':: Analysis • • • • . : .

180 DaysNANA

240 Days72 Hours14 Days

14 Days40 Days40 Days180 Days

NA24 Hours

NA14 Days14 Days40 Days40 Days

002220 Delatte MetalsRegion 6 QAPPSection: B2Revision: 00Date: March 26,1999Page: 5 of 5

TABLE B2-2(Continued)

REQUIRED SAMPLE VOLUMES, CONTAINERS, PRESERVATION TECHNIQUES, AND HOLDING TIMES

Notes:

HN03 Nitric AcidIDW Investigation-derived wasteL LitermL MilliliterNA Not applicableNaOH Sodium hydroxideQC Quality controlSVOC Semivolatile organic compoundTAL Target analyte listTCL Target compound listTDS Total dissolved solidsTOC Total organic carbonTPH-DRO Total petroleum hydrocarbons diesel range organicsTPH-GRO Total petroleum hydrocarbons gasoline range organicsVOC Volatile organic compound

' Holding time is measured from the time of collection to the time of sample preparation, extraction, or analysis.11 Inorganic analyses include sulfate, sulfite, and pH; additionally, soils will be analyzed for TOC, and ground water will be analyzed for TDS and hardness.

_____Preservation of the sample must be completed within 48 hours of sample collection_________________________________

Delatte MetalsRegion 6 QAPPSection: B3Revision: 00Date: March 26,1999Page: lofl

B3 SAMPLE HANDLING AND CUSTODY REQUIREMENTS

Each sample collected by Tetra Tech will be traceable from the point of collection through analysis andfinal disposition to ensure sample integrity. Sample integrity helps to ensure the legal defensibility ofthe analytical data and subsequent conclusions. The team will use standard EPA procedures to identify,track, monitor, and maintain the chain of custody for all samples. These procedures, which are discussedin detail in the generic RAC QAPP (PRC 1996a), are as follows:

• Field chain-of-custody procedures

- Field procedures

— Field log books

• Laboratory chain-of-custody procedures

Delatte Metals08Region 6 QAPP

Section: B5Revision: 00 (\JDate; March 26,1999 (S?Page; lofll

B4 ANALYTICAL METHODS REQUIREMENTS

The source of analytical services to be provided will be determined in part by DQOs and fhe intended useof the resulting data. Tetra Tech will use EPA-approved methods for laboratory analyses of the samples.

Tetra Tech will follow the analytical services request procedures that are outlined in the generic RACQAPP (PRC 1996a) and the site-specific FSP (Tetra Tech 1999a). If an analytical system fails, the QA -officer will be notified, and corrective action will be taken, m general, corrective actions will includestopping fhe analysis, examining instrument performance and sample preparation information, anddetermining whether it is necessary to re-prepare and reanalyze the samples.

Definitive laboratory analysis of samples will be conducted by laboratories that are subcontracted byTetra Tech. Table A8-1 lists fhe laboratory analytical methods for this project. In all cases, appropriatemethods of sample preparation, cleanup, and analyses are based on specific analytical parameters ofinterest, sample matrices, and required quantitation limits. The following subsections briefly discusseach analytical method and any required modifications for definitive analyses. Many of fhe preferredquantitation limits listed in Table A8-2 may not be achievable using standard methods. Modificationsmay be needed to handle unusual matrices or meet low quantitation limits.

B4.1 TARGET ANALYTE LIST METALS

TAL metals will be analyzed by using the methods that are listed in Table A8-1. Sample preparationmethods for TAL metals include (1) SW-846 Method 3010A for aqueous matrices, (2) SW-846 Method3050B for soil and sediment, or (3) SW-846 Method 3040A for biological tissue. Alternatively, thelaboratory may use the microwave digestion technique specified in SW-846 Method 3051.


To achieve the quantitation limits listed in Table A8-2, it may be necessary to modify the methods, asfollows:

SW-846 Method 6010B (U.S. EPA 1996c) uses inductively coupled plasma (ICP)instrumentation to perform the analysis. The laboratory may use a "trace" ICP orICP/mass spectrometer to achieve the quantitation limits.

• During the digestion of a sample, the laboratory may use a larger aliquot of sample tolower the quantitation limits, provided that matrix interference is not significant. Foraqueous matrices, the laboratory may concentrate the digest to a smaller volume than meoriginal aliquot.

• The laboratory may employ graphite furnace atomic absorption (GFAA) to achieve thequantitation limits. GFAA methods (7000 series) are found in SW-846 (U.S.EPA1996c).

For QC purposes, the laboratory will (1) document, in the case narrative, any modifications to themethods, and (2) prepare all associated QC samples with identical modifications.

B4.2 CYANIDE

Total cyanide will be analyzed by using SW-846 Method 9014. The samples will be distilled inaccordance with (1) Methods 9010B or 9012A for aqueous matrices, and (2) Method 9013 for soil,sediment, and biological tissue.

To achieve the laboratory quantitation limits listed in Table A8-2, larger aliquots of sample matrix maybe distilled, provided that matrix interference is not significant. For QC purposes, me laboratory will(1) document, in the case narrative, any modifications to the methods, and (2) prepare all associated QCsamples with identical modifications.'

0Delatte Metals 0Region 6 QAPP ^Section: B5Revision: 00 .j ,Date: March 26,1999Page: 3 of 11

B4.3 VOLATILE ORGANIC COMPOUNDS

VOCs will be analyzed by using SW-846 Method 8260B and GC/mass spectrometry. The contaminantswill be transferred from the sample matrix to the gaseous phase by purging with inert gas and using(1) SW-846 Method 5030B for aqueous samples, and (2) SW-846 Method 5035 for solid samples.

To achieve the laboratory quantitation limits listed in Table A8-2, larger aliquots of sample matrix may -be purged, provided that matrix interference is not significant. Specifically, the following modificationsare acceptable:

• Purging a larger aliquot of liquid or solid sample

• Extending the lower end of the instrument calibration curve

For QC purposes Ihe laboratory will (1) document, in the case narrative, any modifications to themethods, and (2) prepare all associated QC samples with identical modifications.

B4.4 SEMIVOLATILE ORGANIC COMPOUNDS

SVOCs will be analyzed by using SW-846 Method 8270C using GC/mass spectrometry. Thecontaminants will be transferred from the sample matrix to a solvent phase by using (1) SW-846 Method3520C for aqueous samples, and (2) SW-846 Method 3550B for solid samples.

To achieve the laboratory quantitation limits listed in Table A8-2, larger aliquots of sample matrix maybe extracted, provided that matrix interference is not significant. Specifically, the followingmodifications are acceptable:

• Extracting a larger aliquot of liquid or solid sample

• Concentrating the final extract to a smaller volume

• Extending the lower end of the instrument calibration curve

0Delatte Metals oRegion 6 QAPP K)Section: B5Revision: 00Date: March 26,1999Page: 4 of 11

For QC purposes, the laboratory will (1) document, in the case narrative, any modifications to themethods, and (2) prepare all associated QC samples with the identical modifications.

B4.5 TOTAL PETROLEUM HYDROCARBONS

TPH will be analyzed by using a modified SW-846 Method 8015. The modification includes anextraction step for nonvolatile constituents. The analysis will include two separate runs:(1) purge-and-trap volatile analysis, and (2) direct-injection solvent extract analysis.

Quantitation limits of 0.150 milligrams per liter (mg/L) for aqueous matrices and 6.5 milligrams perkilogram for soil matrices should be achievable. If the laboratory quantitation limit is greater than these,larger aliquots of sample matrix may be extracted, provided that matrix interference is not significant.

For QC purposes, the laboratory will (I) document, in the case narrative, any modifications to themethods, and (2) prepare all associated QC samples with the identical modifications.

B4.6 SULFATEANDSULBTTE

Sulfate will be analyzed by using SW-846 Method 9056 and ion chromatography, and sulfite will beanalyzed by using Method 4500 (American Public Health Association 1989) and titration. The analyticalmethods include sample preparation procedures.

The quantitation limits of 0.5 mg/L and 0.5 mg/kg for sulfate, and 2.0 mg/L and 2.0 mg/kg for sulfiteshould be achievable. If the laboratory quantitation limit is greater than these, larger aliquots of samplematrix may be distilled, provided that matrix interference is not significant. For QC purposes, thelaboratory will (1) document, in the case narrative, any modifications to the methods, and (2) prepare allassociated QC samples with the identical modifications.

0Delatte Metals 0Region 6 QAPP ^Section: B5 ^J

Revision: 00 <^Date: March 26,1999Page: 5 of 11

B4.7 DETERMINATION OF rH

SW-846 Methods 9040B and 9045C will be used to determine pH in liquid and solid matrices,respectively. The instrument sensitivity should be at least 0.1 pH unit. Determinations ofpH in the field(screening method) will be performed by using a water quality meter. No method modifications areexpected for pH determinations.

B4.8 TOTAL DISSOLVED SOLIDS

TDS will be determined by using Methods for Chemical Analysis of Water and Waste (MCAWW) EPAMethod 160.1 in ground water only. The quantitation limit of 10 mg/L should be readily achievable. Nomodifications are expected for TDS measurements.

B4.9 TOTAL ORGANIC CARBON

TOC will be determined by using SW-846 Method 9060 in soil only. The quantitation limit of 10 mg/kgshould be readily achievable. No modifications are expected for TOC measurements.

B4.10 HARDNESS

Hardness of ground water samples will be determined by using Standard Methods 2340C (EDTA). Nomodifications are expected for hardness measurements.

B4.11 ANION/CATION EXCHANGE

Anion/cation exchange of soil samples will be determined by using SW-846 Method 9081. Nomodifications are expected for anion/cation exchange measurements.

Delatte MetalsRegion 6 QAPP ^>Section: B5 b'JRevision: 00 ' 1Date: March 26,1999Page: 6 of 11

B4.12 REACTIVITY

Reactivity will be determined by using procedures specified in SW-846 Volume I, Chapter 7, Section 7.3for solid and liquid IDW samples only. Reactive sulfite and cyanide will be measured in accordancewith the method. Sample preparation is specified in the aforementioned section of SW-846.Quantitation of cyanide and sulfite will be performed by using SW-846 Methods 9014 and 9034,respectively. The quantitation limit of 10 mg/L should be achievable for each analyte. No modificationsare expected for reactivity measurements.

B4.13 IGNTTABILITY

Ignitability will be determined by using SW-846 Method 1010 for solid and liquid IDW samples only.The flash point will be reported to the nearest 0.1 °F. The temperature of the apparatus will be allowedto rise beyond the flash point of me sample or up to 212 °F, whichever is lowest. No modifications areexpected for ignitability measurements.

Delatte MetalsRegion 6 QAPPSection: B5Revision: 00Date: March 26,1999Page: lofll

B5 QUALITY CONTROL REQUIREMENTS

Various field and laboratory QC samples and measurements will be used to verify that analytical datameet the QA objectives. Field QC samples and measurements will be used to assess the influence ofsampling activities and measurements on data quality. Similarly, laboratory QC samples will be used toassess the influence of a laboratory's analytical program on data quality. This section describes the QCsamples that are to be analyzed during the investigation for (1) each field and laboratory environmental -measurement method and (2) each sample matrix type. Table A7-1 shows the number and types ofQA/QC samples that will be collected from the site. Table B5-1 presents the frequency ofQC samples tobe collected at the site.

This section provides requirements, collection, and analysis frequencies of required field and laboratoryQC samples and measurements, and descriptions of the procedures that are to be used to assesslaboratory data and common data quality indicators.

B5.1 FIELD QUALITY CONTROL REQUIREMENTS

Field QC samples will be collected and analyzed to assess the quality of data that are generated bysampling activities. These samples will include (1) replicate measurements (for field screening analysesonly), (2) laboratory QC samples collected in the field, (3) field duplicates, (4) equipment rinsates, and(5) trip blanks.

QC checks for field screening analysis will consist of calibration checks of field instrumentation to a QCstandard to determine the accuracy of the measurement. Precision of field measurements will typicallybe checked by taking replicate measurements. Table B5-1 specifies the types and frequencies of fieldQC measurements and the QC limits for these measurements.


TABLE B5-1

FREQUENCY OF FDELD QUALITY CONTROL SAMPLE COLLECTION PLAN

.?.: w. 'KK^S^^K^•;'..: :•——•:;: :.";-'l'-'-:; , ;••;. ,- -^'..•'^t^WK-lM'Ksy'WKa'iWK:?

^7^^;^GâI^^

Field replicate measurements

MS/MSD (laboratory QC)

Field duplicates

Equipment rinsates1'

Trip blanks (Liquid VOA only)

^^c^^^^^^^^llÎ^...;y;;•'^ ;y^ ^.Aqueous Matrix ^ • ^ :;::.:!.:^

1 per parameter per 10


1 per 10 samples

1 per 10 samples

1 per cooler containing (Liquid VOA)

len^ 'I^S^î^^^

î^'ii^C^^^^SoM'W^^

NA


1 per 10 samples

1 per day

NA

Notes:

MS Matrix spikeMSD Matrix spike duplicateNA Not applicableQC Quality controlVOA Volatile organics analysisa Collected only when nondedicated or nondisposable equipment is reused after decontamination; equipment rinsate

requirements will be met on a per sampling team basis.

00

Delatte Metals (S?Region 6 QAPP ^Section: BS QRevision: 00Date: March 26,1999Page: 3 of 11

MS, MSD, and matrix duplicate (MD) samples are laboratory QC samples that are collected in the field.For solid matrices, MS/MSD samples require no extra volume, except for VOCs. For VOC analysis onsolid matrices, six Encore™ samplers must be used for each soil sample collected. For aqueous samples,MS/MSD samples require three times the normal volume for organic analyses and two times the normalvolume for inorganic analyses. Sections B5.2.3 and B5.2.4 discuss these laboratory QC samples indetail.

Liquid matrix field duplicate and collocated solid samples are independent samples that are collected asclose as possible, in space and time, to the original investigative sample. Immediately followingcollection of me original sample, the field duplicate and collocated samples are collected by using thesame collection method. Sampling personnel will be careful to collect the field duplicate and collocatedsamples as close as possible to the location of the original samples. Field duplicate and collocatedsamples can measure me influence of sampling and field procedures on the precision of anenvironmental measurement. They can also provide information on the heterogeneity of a samplinglocation. Field duplicates will be collected at a frequency of 1 per every 10 investigative samples of amatrix type.

Equipment rinsate blanks are collected when nondedicated or nondisposable sampling equipment is usedto collect samples and put the samples into containers. These blanks assess me cleanliness of thesampling equipment and the effectiveness of equipment decontamination. Equipment rinsate blanks arecollected by pouring analyte-free water over the decontaminated surfaces of sampling equipment thatcontact sampling media. Equipment rinsate blanks are collected after sampling equipment has beendecontaminated, but before the equipment is reused for sampling. If nondedicated or nondisposableequipment is used, equipment rinsate blanks will be collected at a frequency of 1 per every 20 or fewerinvestigative samples.

Trip blanks are used to assess me potential for sample contamination during handling, shipment, andstorage. Trip blanks for liquid samples are bottles that are filled with organic-free water. The trip blanksare (1) sealed and transported to the field, (2) stored with empty sample bottles and then with the


investigative samples throughout the field effort, and (3) returned to the laboratory with the investigativesamples for analysis. Trip blanks are never opened in the field. One trip blank is included in everyshipping cooler containing liquid samples sent to the analytical laboratory to be analyzed for VOCs.

B5.2 LABORATORY QUALITY CONTROL REQUIREMENTS

All laboratories mat perform analytical work under this project must adhere to a QA program that is usedto monitor and control all laboratory QC activities. Each laboratory must have a written QA manual thatdescribes the QA program in detail. The laboratory QA manager is responsible for ensuring mat alllaboratory internal QC checks are conducted in accordance witih EPA methods and protocols, fhelaboratory's QA manual, and fhe requirements of this QAPP.

Many of fhe laboratory QC procedures and requirements are described in EPA-approved analyticalmethods, laboratory method SOPs, and method guidance documents.

The EPA methods specify fhe preparation and analysis ofQC samples, and may include, but are notlimited to, the following types: (1) LCSs and LCSDs, (2) method blanks, (3) MS and MSD samples,(4) MD samples, (5) surrogate spikes, and (6) standard reference materials or independent checkstandards. The following subsections discuss QC checks that will be required for this project.

B5.2.1 Laboratory Control Samples

LCSs are thoroughly characterized, laboratory-generated samples that are used to monitor thelaboratory's day-to-day performance of analytical methods. LCSs can be analyzed in duplicate togenerate an LCSD. If the system is not in control, corrective action will be implemented. Appropriatecorrective actions will include (1) stopping fhe analysis, (2) examining instrument performance orsample preparation and analysis information, and (3) determining whether samples should be re-preparedor reanalyzed. For this project, LCSs will be required for metals analysis.

00Delatte Metals

Region 6 QAPP ^Section: B5 OJRevision: 00 •)

Date; March 26,1999Page: 5 of 11

B5.2.2 Method Blanks

Method blanks, which are also known as preparation blanks, are analyzed to assess the level ofbackground interference or contamination in the analytical system. Contamination or interference mayresult in erroneously elevated concentration levels or false-positive data. Method blanks will be requiredfor all laboratory analyses, and will be prepared and analyzed at a frequency of one method blank perevery 20 samples processed by the analytical system. For batches that are composed of fewer than20 samples, one method blank will be analyzed with every batch of samples that is processed.

A method blank consists of reagents that are specific to the analytical method and are carried throughevery aspect of the analytical procedure, including sample preparation, cleanup, and analysis. Theresults of the method blank analysis will be evaluated in conjunction with other QC information todetermine the acceptability of the data generated for that batch of samples.

If the method blank for any analysis is beyond control limits, the source of contamination must beinvestigated, and appropriate corrective action must be taken and documented. Investigation includes anevaluation of the data to determine the extent of the contamination and its effect on sampling results. If amethod blank is within control limits but analysis indicates concentration of analytes that is above thereporting limit, an investigation should be conducted to determine whether any corrective action couldeliminate an ongoing source of target analytes.

For organic and inorganic analyses, the concentration of target analytes in the method blank must bebelow the reporting limit for that analyte for the blank to be considered acceptable. An exception may bemade for common laboratory contaminants (such as mefhylene chloride, acetone, 2-butanone, andphfhalate esters) mat may be present in the blank at up to five times the reporting limit. Thesecompounds are frequently detected at low levels in method blanks from materials that are used incollecting, preparing, and analyzing samples for organic parameters.

00

Delatte Metals Is)Region 6 QAPP ^Section: B5 ^Revision: 00Date: March 26,1999Page: 6 of 11

B5.2.3 Matrix Spikes and Matrix Spike Duplicates

MSs and MSDs are aliquots of an environmental sample to which known concentrations of targetanalytes and compounds have been added. The percent recoveries of the target analytes and compoundsare calculated, and are used to determine the effects of the matrix on the precision and accuracy of themethod. For inorganic analyses, MS samples are prepared and analyzed. For organic analyses, MS and -MSD samples are prepared and analyzed. The RPD between the MS and MSD results is used to evaluatemethod precision. Results are expressed as RPD and percent recovery, and are compared to controllimits that have been established for each analyte. If results fall outside control limits, corrective actionmust be performed. One MS for inorganics, and one MS and MSD pair for organics, is analyzed forevery 20 investigative samples that are prepared in one batch.

B5.2.4 Matrix Duplicates

MDs, which also called laboratory sample duplicates, are prepared and analyzed for inorganic analysesto assess method precision. Two aliquots are taken from the sample and processed simultaneouslywithout adding spiking compounds. The MD and the original sample aliquot are taken through the entireanalytical procedure, and the RPD of the duplicate result is calculated.

Results are expressed as RPD and are compared to control limits that have been established for eachanalyte. If results fall outside control limits, corrective action must be performed. One MD is requiredfor every 20 investigative samples that are prepared in one batch for inorganic analyses.

B5.2.5 Surrogate Spikes

Surrogates are organic compounds that are similar to the analytes of interest in chemical behavior but arenot normally found in environmental samples. Surrogates are added to all field and QC samples, beforethe samples are extracted, to assess the efficacy of the extraction procedure and assess the bias that is


introduced by the sample matrix. Results are reported in terms of percent recovery. Surrogate recoverycriteria are presented in the (U.S. EPA 1994a) CLP SOW for organics analysis.

The laboratory will use surrogate recoveries mainly to assess matrix effects on sample analysis. Obviousproblems with sample preparation and analysis (such as evaporation to diyness or a leaking septum) thatcan lead to poor surrogate spike recoveries must be eliminated before low surrogate recoveries can beattributed to matrix effects.

B5.3 COMMON DATA QUALITY INDICATORS

This section describes how QA objectives for precision, accuracy, completeness, and sensitivity aremeasured, calculated, and reported. For some investigations, additional equations might be needed, suchas equations for calculating mass balances, emission rates, and confidence ranges.

B5.3.1 Precision

For many analyses, precision is assessed by comparing analytical results of MS and MSD sample pairsfor organic analyses, field duplicate samples, LCS and LCSD pairs, MDs, and field replicatemeasurements. If precision is calculated from two measurements, it is normally measured as RPD, byusing the following equation:

(C. - C.) x 100RPD = ————2———— (B5-1)(c, + cy/2 v"3 i)

where

RPD = relative percent difference (%)C, = larger of the two observed measurement valuesC^ = smaller of the two observed measurement values

If precision is determined between more than two results, relative standard deviation is calculated byusing the following equation:

Delatte Metals §Region 6 QAPP (sJSection: B5 (>->Revision: 00 w

Date: March 26,1999Page: 8 of 11

RSD = (s I y ' x 100 (B5-2)

where

RSD = relative standard deviation (%)s = standard deviationy' = the mean or replicate analyses

The standard deviation is defined as follows:

^-1°^: (B5-3)\i-i n - 1

where

snViy

standard deviationnumber of replicatesmeasured value of the 1th replicatethe mean or replicate measurement

For field measurements, such as pH, where the absolute variation is more appropriate, precision is oftenreported as me absolute range of duplicate measurements:

D = |w, - mJ (B5-4)

where

D = absolute rangein, = first measured valuem, = second measurement value


B5.3.2 Accuracy

The accuracy of many analytical methods is assessed by using the results of MS and MSD samples fororganic analyses, MS samples for inorganic analyses, surrogate spike samples, LCSs, standard referencematerials, independent check standards, and measurements of instrument responses against zero and spangases.

For measurements in which spikes are used, percent recovery is often calculated as a measure ofaccuracy:

R =^__^ . 100 (B5-5)c._

where

RSU

c.,

percent recovery (%)measured concentration in spiked aliquotmeasured concentration in unspiked aliquot (usually equals zero for surrogatespikes)actual concentration of spike added

When a standard reference material is used, the following equation is often used to calculate percentrecovery:

R =C.

C_x 100 (B5-6)

whereR€„,C.,

percent recovery (%)measured concentration of standard reference materialactual concentration of standard reference material

For field measurements, such as pH, accuracy is expressed in terms of bias and is calculated as follows:


B =• M - A (B5-7)

where

BMA

biasmeasured value of standard reference materialactual value of standard reference material

B5.3.3 Completeness

Data completeness is calculated as follows:

\V\c = — xioo» (B5-8)

where

CV

n

percent completenessactual number of measurements judged valid (the validity of a measurementresult is determined by judging its suitability for its intended use)total number of measurements planned to achieve a specified level of confidencein decision-making

B5.3.4 Sensitivity

The achievement ofMDLs depends on instrument sensitivity and matrix effects. Therefore, theinstrument sensitivity will be monitored to ensure data quality and to ensure that analyses meet the QAobjectives that have been established for sensitivity (Section A8.2.1). Method sensitivity is typicallyevaluated in terms of the MDL and, for many measurements, is calculated as follows:

MDL =s x t (B-l.l-lt.0.99) B5-9

8Delatte Metals b~>Region 6 QAPP ^Section: B5 QQRevision: 00Date: March 26,1999Page: 11 of 11

MDL = method detection limitt (n-i,i^<.99) = student's t-value for a one-sided 99 percent confidence level and a standard

deviation estimate with n-1 degrees of freedomn = number of measurementsa = statistical significance levels = . standard deviation of the replicate analyses

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B6 INSTRUMENT AND EQUIPMENT TESTING, INSPECTION,AND MAINTENANCE REQUIREMENTS

This section outlines testing, inspection, and maintenance procedures for field equipment andinstruments and for laboratory instruments. Tetra Tech will lease equipment through a national accountsupply agreement with HAZCO Services, Inc. (HAZCO). This section discusses general requirementsthat apply to field and laboratory equipment, and field-specific and laboratory-specific requirements.

»

The site-specific FSP (Tetra Tech 1999a) describes the equipment requirements for this site.

B6.1 GENERAL REQUIREMENTS

Testing, inspection, and maintenance methods and frequency will be based on (1) the type of instrument;(2) its stability characteristics; (3) the required accuracy, sensitivity, and precision; (4) its intended use,considering project-specific DQOs; (5) manufacturer's recommendations; and (6) other conditions thataffect measurement or operational control. For most instruments, preventive maintenance is performedin accordance with procedures and schedules recommended in (1) the instrument manufacturer'sliterature or operating manual, or (2) SOPs associated with particular applications of the instrument.

In some cases, testing, inspection, and maintenance procedures and schedules will differ from themanufacturer's specifications or SOPs. This can occur when a field instrument is used to make criticalmeasurements or when the analytical methods that are associated with a laboratory instrument requiremore frequent testing, inspection, and maintenance.

B6.2 FIELD EQUIPMENT AND INSTRUMENTS

Tetra Tech will use leased field equipment and instruments. Leased field equipment and instrumentswill be identified uniquely as the property of HAZCO. HAZCO will be responsible for thoroughlychecking and calibrating field equipment and instruments before they are shipped or transported to thefield. Copies of testing, inspection, and maintenance procedures will be shipped to the field with the

Delatte Metals 0Region 6 QAPP °Section: B6 )Revision: 00 4 -Date: March 26,1999 °Page: 2 of 3

equipment and instruments. After the equipment and instruments arrive in me field, the field managerwill assume responsibility for testing, inspection, and maintenance.

After arrival in the field, field equipment and instruments will be inspected for damage. Damagedequipment and instruments will be replaced or repaired immediately. Battery-operated equipment willbe checked to ensure full operating capacity; if needed, batteries will be recharged or replaced. Criticalspare parts will be kept on site to minimize equipment downtime. Examples of critical spare parts are -tape, paper, pH probes, electrodes, and batteries. Delays in the field schedule should be prevented byhaving back-up instruments and equipment available on site or available for shipment to the site withinone day.

Following use, field equipment will be decontaminated properly before it is returned to its source. Whenthe equipment is returned, copies of any field notes regarding equipment problems will be included sothat problems are not overlooked and any necessary equipment repairs are performed.

B6.3 LABORATORY INSTRUMENTS

All laboratories that conduct analyses of samples collected under the EPA Region 6 RAC program musthave a preventive maintenance program that addresses (1) testing, inspection, and maintenanceprocedures, and (2) the maintenance schedule for each measurement system and required supportactivity. This program is usually documented by an SOP for each analytical instrument that is to beused. Typically, the program will be laboratory-specific; however, it should follow requirementsoutlined in EPA-approved guidelines. Following are some of the basic requirements and components ofsuch a program:

• As a part of its QA/QC program each laboratory will conduct a routine preventivemaintenance program to minimize instrument failure and other system malfunction.

• An internal group of qualified personnel will perform service and repair of instruments,equipment, tools, and gauges. Alternatively, manufacturers representatives may providescheduled instrument maintenance and emergency repair under a repair and maintenancecontract.


The laboratory will perform instrument maintenance on a regularly scheduled basis. Thescheduled service of critical items should minimize the downtime of the measurementsystem. The laboratory will prepare a list of critical spare parts for each instrument. Thelaboratory will request the spare parts from the manufacturer and will store them.

Testing, inspection, and maintenance procedures described in laboratory SOPs will beperformed in accordance with manufacturer's specifications and the requirements of thespecific analytical methods mat are used.

All maintenance and service must be documented in service logbooks to provide ahistory of maintenance records. A separate service logbook should be kept for eachinstrument. All maintenance records will be traceable to the specific instrument,equipment, tool, or gauge.

The laboratory will maintain and file records that are produced as a result of tests,inspection, or maintenance of laboratory instruments. These records will be available forreview by internal and external laboratory system audits that are conducted under meEPA Region 6 RAC program.

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B7 INSTRUMENT CALIBRATION AND FREQUENCY

This section describes the procedures for maintaining the accuracy of field equipment and laboratoryinstruments that are used for field tests and laboratory analyses. The equipment and instruments shouldbe calibrated before each use or, when not in use, on a scheduled periodic basis.

B7.1 FIELD EQUIPMENT

Calibration and frequency of field instruments are discussed in the site-specific FSP (Tetra Tech 1999a).Equipment that is used to collect field samples or take field measurements under the EPA Region 6 RACprogram will be maintained and calibrated with sufficient frequency and in such a manner that meaccuracy and reproducibility of results are consistent with the manufacturer's specifications and withproject-specific screening-level DQOs.

Upon arrival of the field sampling and measurement equipment, the field manager will examine it toverify that it is in good working condition. The manufacturer's operating manual and instructions thataccompany the equipment will be consulted to ensure that all calibration procedures are followed.Measuring and testing equipment may be calibrated either internally by using in-house referencestandards or externally by agencies, manufacturers, or commercial laboratories. Calibration records willcontain a reference identifying the source of the procedure and, where feasible, the record will containthe actual procedure. Each item of measuring and testing equipment will also be accompanied by anequipment use log. The equipment use log will be kept current and may contain the followinginformation: (1) date of use, (2) times of use, (3) operating and assisting technicians, (4) calibrationstatus, and (5) comments. The Tetra Tech SOPs listed in Table B2-1 include those covering calibrationprocedures, frequency standards, control limits, and corrective actions.

B7.1.1 Responsibilities

Assurance that properly calibrated equipment is used for measuring and testing is the responsibility ofthe each team leader, who will confirm mat properly calibrated equipment is used. Inspections may


include a review of calibration records and procedures. These inspections will be conducted at leastweekly, and the results of the inspections will be logged by the field technician. Personnel who usecalibrated equipment are directly responsible for performing proper calibration and maintenance beforeuse.

B7.1.2 Calibration Procedures

Documented and approved procedures will be used to calibrate measurement and test equipment.Whenever possible, widely accepted procedures will be used, such as those published by EPA or therespective equipment manufacturer.

Equipment that requires calibration will be identified uniquely by the equipment serial number oranother adequate means. Whenever feasible, a tag will be affixed to the equipment; the tag will identify(1) the date of the most recent calibration, (2) the initials of the calibrating technician, and (3) me date ofme next scheduled calibration. The site chemist will maintain a list of measurement equipment thatrequires frequent calibration. The list will include the name and serial number of the equipment, and itscalibration frequency and status.

As part of the established calibration procedure for each item of equipment, reference standards will beused for calibration. The reference standards will have known relationships to nationally recognizedstandards (for example those of the National Institutes of Science and Technology). If there are nonational standards, the basis for calibration will be documented.

Equipment that fails calibration or becomes inoperable during use will be removed from service andreplaced.

B7.1.3 Maintenance Procedures

Periodic preventive maintenance is required for some equipment. The requirements for preventivemaintenance will be documented in the equipment use log. Preventive maintenance will be recorded in

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fhe equipment use log as part of fhe operational procedure. Equipment manuals will be kept on file forreference purposes. However, a scheduled preventive maintenance program will be addressed in theequipment use log.

B7.2 LABORATORY mSTRUMENTS

All laboratory equipment that is used to analyze samples collected under fhe EPA Region 6 RACprogram will be calibrated on fhe basis of written SOPs that are maintained by the laboratory.Calibration records will include fhe dates and times of calibration and the names of the personnel whoperformed the calibration. The calibration records will be (1) filed at the location at which the analyticalwork was performed, and (2) maintained by the laboratory personnel who performed QC activities.Calibration records will be subject to QA audits. Laboratory work under fhe EPA Region 6 RACprogram may be conducted by subcontractor laboratories. In all cases, the laboratory QA manager isresponsible for ensuring that all laboratory instruments are calibrated in accordance with fherequirements of this QAPP.

The laboratories will follow fhe method-specific calibration procedures and requirements for laboratorymeasurements. Calibration procedures and requirements will also be provided, as appropriate, forlaboratory support equipment, such as balances, mercury thermometers, pH meters, and other equipmentthat is used to take chemical and physical measurements.

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B8 REQUIREMENTS FOR INSPECTION AND ACCEPTANCE OFSUPPLIES AND CONSUMABLES

The Delatte project manager has primary responsibility for identifying the types and quantities ofsupplies and consumables that are needed for collecting data at the Delatte Metals site. The projectmanager is also responsible for determining acceptance criteria for these items. Most items that will beused commonly under me RAC program are included in the Tetra Tech equipment and supply catalogthat is prepared as part of Tetra Tech's national account supply agreement with HAZCO. Tetra Tech andHAZCO have selected these items because they will be acceptable for nearly all expected field activities.For example, the catalog includes a complete list of sample containers that meet the EPA specificationsand guidance for contaminant-free sampling containers (U.S. EPA 1992b).

Supplies and consumables can be received at either an equipment distribution center or a site. Whensupplies are received at a distribution center, the Tetra Tech field manager will sort the suppliesaccording to vendor, check packing slips against purchase orders, and inspect the condition of allsupplies before the supplies are accepted for use on a project. If the supplies do not meet the acceptancecriteria, deficiencies will be noted on the packing slip and purchase order, m addition, a form will becompleted, describing the problem and circumstances, and noting the purchase order number of the item.Afterward, the item will be returned to the vendor for replacement or repair.

Procedures for receiving supplies and consumables in the field are similar to those for receiving suppliesand consumables at a distribution center. Upon receipt of the items, me project manager or residentengineer will inspect them in accordance with the acceptance criteria. Any deficiencies or problems willbe noted in the field logbook. Deficient items will be returned for immediate replacement.

0Delatte Metals 0Region 6 QAPP ls>ts>

-a\Section: B9Revision: 00Date: March 26,1999Page; lofl

B9 DATA ACQUISITION REQUIREMENTS (NONDIRECT MEASUREMENTS)

For this project, Tetra Tech anticipates acquiring data from nondirect measurements, such as databases,spreadsheets, and literature files. If such data acquisition is required, the procedures are described in thegeneric RAC QAPP.

B9.1 COMPUTER SOFTWARE AND PROGRAMS

Each computer software package and program that is used will be verified as applicable to therequirements of the work item. Approval of me software and subsequent programs will be given by mecoder; the user and the checker, as applicable; and, ultimately, the appropriate project managementpersonnel.

B9.2 COMPUTER DATA MANAGEMENT

Management of computer-generated data will consist of several activities. Before data input, theconceptual design of the program will be reviewed and approved, depending upon the problem.Applicable software will be verified for use in obtaining the solution. Finally, input will be checked byusing the process mat is described in Section B 10. However, at the option of the project team, the finalcheck of input data may be performed on input originals.

00(s^Delatte Metals

Region 6 QAPP ^Section: B10 "Revision: 00Date: March 26,1999Page: 1 of 2

B10 DATA MANAGEMENT

Data for this project will be obtained from a combination of sources, including field measurements, fieldanalyses, and subcontracted laboratories. The data gathering process requires a coordinated effort andwill be conducted by project staff members in conjunction with all potential data producers. The datawill be obtained from the analytical service provider, when appropriate, in the form of an electronic datadeliverable, in addition to the required hard copy analytical data package. Formal verification (orvalidation) of data will be conducted before associated results are presented or are used in subsequentactivities.

Data tracking is essential to ensure timely, cost-effective, and high-quality results. Data tracking beginswith sample chain of custody. When the analytical services provider receives custody of the samples, theprovider will send a sample acknowledgment to Tetra Tech. The sample acknowledgment will confirmsample receipt, condition, and required analyses. The tracking program will contain all pertinentinformation about each sample and can track the data at each phase of the process. The tracking programcarries the data through completion of the data validation.

Unless otherwise directed by EPA, Tetra Tech will validate 10 percent of the analytical data to ensurethat the confirmatory data are accurate and defensible, as described in Section D2 of this QAPP. As apart of the data validation process, the electronic data deliverables will be reviewed against the hard copydeliverables to ensure the accurate transfer of data. In addition, the hard copy will be evaluated for errorsin the calculation of results. After the data validation, qualifiers can be placed on the data to indicate theusability of the data. These qualifiers will be placed into the electronic data file. Upon approval of thedata set with me appropriate data qualifiers, the electronic data will be released to the project managerfor reporting. Sections Dl and D2 of the generic RAC QAPP contain a complete discussion of TetraTech's data validation procedures (PRC 1996a).


Following data validation and release of data, the project manager will have the data for project reportand preparation. As a part of the final report QC review procedures, the data will be checked again bytechnical reviewers or a QC coordinator to verify its accuracy in the report.

In addition to the final report, all analytical data, in the form in which they are obtained from theanalytical services provider, will be archived, with the final project file, in the document control center.The document control center will house all final project files until they are transferred to EPA.

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Cl ASSESSMENT AND RESPONSE ACTIONS

Under fhe EPA Region 6 RAC program, performance and system audits of field and laboratory activitiesmay be conducted to verify that sampling and analysis are performed in accordance with the proceduresand requirements established in the generic RAC QAPP. This includes me following:

• Performance and system audits

— Audit personnel

— Audit scope of work•

— Audit frequencies

— Audit reports

• Corrective action

— Sample collection and field measurements

— Laboratory analyses

Nonconforming items and activities are those that do not meet the project requirements, procurementdocument criteria, and approved work procedures. Nonconformance may be detected and identified byfhe following personnel:

• Project personnel—During field construction inspection operations, supervision ofsubcontractors, and field inspections

• Testing personnel—During preparation for and performance of tests, equipmentcalibration, and QC activities

• QA personnel—During the performance of audits, surveillances, and other QA activities

Each nonconformance that affects quality will be documented by fhe person who identifies or originatesthe nonconformance. Documentation of nonconformance will include fhe following components:

• Description of nonconformance

Delatte MetalsRegion 6 QAPPSection: ClRevision: 00Date: March 26,1999Page: 2 of 2

• Identification of personnel who are responsible for correcting the nonconformance and,if verification is required, for verifying satisfactory resolution

• Method(s) for correcting the nonconformance (corrective action), or description of thevariance granted

• Proposed schedule for completing corrective action, and corrective action taken

Nonconformance documentation will be made available to the project manager, QA manager, andsubcontractor management personnel, as appropriate, by using the form and procedures for potentialdeviations, as described in the project management plan.

The appropriate manager and QA personnel, as appropriate, are responsible for notifying the projectmanager and the QA manager of the nonconformance. In addition, the project manager and theconstruction inspection manager, as appropriate, will be notified of significant nonconformances fhatcould affect the results of the work. The project manager is responsible for determining whethernotification ofEPA is required.

The completion of corrective action's for significant nonconformances will be documented by QApersonnel during future auditing activities. Any significant recurring nonconformance will be evaluatedby project and QA personnel, as appropriate, to determine its cause. Appropriate changes will beinstituted, under corporate or project procedures, to prevent recurrence. When such an evaluation isperformed, the results will be documented.

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C2 REPORTS TO MANAGEMENT

Effective management of environmental data collection operations requires timely assessment andreview of measurement activities. It is essential that open communication, interaction, and feedback bemaintained among all project participants, including (1) the Tetra Tech corporate QA manager, contractQA officer, program manager, project manager, technical staff, and laboratory subcontractors, and(2) the EPA Region 6 project officer, QA officer, and work assignment manager. Tetra Tech prepares .monthly progress reports for each work assignment that is conducted under the EPA Region 6 RACprogram. These reports address any QA issues that are specific to the work assignment-specific QA.issues and facilitate timely communication of such issues.

At the program level, the QA officer prepares quarterly status reports ofQA issues that are related toTetra Tech's work on the EPA Region 6 RAC program. These reports are distributed to Tetra Tech'spresident, corporate QA manager, RAC program manager, and, upon request, the EPA Region 6 projectofficer. QA status reports address the following areas:

• Results of QA audits'and other inspections, including any quality improvementopportunities that have been identified for farther action

• Instrument, equipment, or procedural problems that affect QA

• Subcontractor performance issues

• Corrective actions

• Status of previously reported activities and continuous quality improvement initiatives

• Work planned for me next reporting period

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Dl DATA REVIEW AND REDUCTION REQUIREMENTS

This section focuses on data review and reduction requirements for work conducted under the EPARegion 6 RAC program. Section D2 addresses data validation and verification requirements. SectionD3 addresses reconciliation with DQOs.

Data reduction and review are essential functions for preparing data that can be used effectively tosupport project decisions and DQOs. These functions must be performed accurately and in accordancewith EPA-approved procedures and techniques. Data reduction includes all computations and datamanipulations that produce the final results that are used during the investigation. Data review includesall procedures mat field or laboratory personnel conduct to ensure that measurement results are correctand acceptable in accordance with the QA objectives that are stated in this QAPP. Field and laboratorymeasurement data reduction and review procedures and requirements are specified in previouslydiscussed field and laboratory methods, SOPs, and guidance documents.

Field personnel will record, in a field logbook, all raw data from chemical and physical fieldmeasurements. The project manager has primary responsibility for (1) verifying mat field measurementswere made correctly, (2) confirming that sample collection and handling procedures specified in theproject-specific QAPP were followed, and (3) ensuring that all field data reduction and reviewprocedures requirements are followed. The project manager is also responsible for assessing preliminarydata quality and for advising the data user of any potential QA/QC problems with field data. If field dataare used in a project report, data reduction methods will be fully documented in the report.

Reduction of field data will be verified by using the standard processes for testing and analyses, and theprocesses for materials testing and analyses during construction. Checks will be performed beforeresults are presented. If unchecked results are presented or used, transmittals or subsequent calculationswill be marked "PRELIMINARY" or "DRAFT" until the results have been checked and determined tobe correct.

0Delatte Metals ^Region 6 QAPP (s>Section: Dl S/?Revision: 00Date: March 26,1999Page: 2 of 2

Data reduction (100 percent for field analyses) and resulting summaries, tables, and graphs will bechecked. This will include computer input if reduction is performed by computer. Data sheets will becomplete and will address requested information.

The subcontracted laboratory will complete data reduction for chemical and physical laboratorymeasurements, and will complete an in-house review of all laboratory analytical results. The laboratoryQA manager will be responsible for ensuring that all laboratory data reduction and review procedures .follow the requirements that are stated in this QAPP. The laboratory QA manager will also beresponsible for assessing data quality and for advising the QA officer of possible QA/QC problems withlaboratory data.

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D2 VALIDATION AND VERIFICATION METHODS

All data that are used to support activities under the EPA Region 6 RAC program must be validated fortheir intended purposes. This section outlines the basic data validation procedures that will be followedfor all field and laboratory measurements. The following subsections identify personnel who areresponsible for data validation, and the general data validation process and EPA data validation guidancethat will be followed.

D2.1 DATA VALIDATION RESPONSIBILITIES

When analytical services are provided by Tetra Tech subcontractor laboratories, Tetra Tech isresponsible for data validation. The QA officer has primary responsibility for coordinating Tetra Tech'sdata validation activities. Tetra Tech will validate 10 percent of all subcontractor laboratory data. Datavalidation will be completed by one or more experienced data reviewers.

D2.2 DATA VALIDATION PROCEDURES

The validity of a set of data is determined by comparing the data with a predetermined set ofQC limits.For investigations that are conducted under the EPA Region 6 RAC program, these QC limits areprovided in Sections A8 and B5 of this QAPP. Tetra Tech data reviewers will conduct a systematicreview offhe data for compliance with established QC limits (such as sensitivity, precision, andaccuracy), on fhe basis of spike, duplicate, and blank sampling results that are provided by thelaboratory. The data review will identify any out-of-control data points or omissions. Tetra Tech datareviewers will evaluate laboratory data for compliance with the following information:

• Method and project-specific analytical service requests

• Holding times

• Initial and continuing calibration acceptance criteria

• Field, trip, and method blank acceptance criteria

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• Surrogate recovery

• Field duplicates and MS and MSD acceptance criteria

• MD precision

• Other laboratory QC criteria specified by the method or on the project-specific analyticalservice request form

• Compound identification and quantitation

• Overall assessment of data, in accordance with project-specific objectives

Tetra Tech will follow the most current EPA CLP guidelines (U.S. EPA 1994c) for completing datavalidation for all applicable test methods. General procedures in the CLP guidelines will be modified, asnecessary, to fit the specific analytical method that is used to produce the data. In all cases, datavalidation requirements will depend on (1) DQO levels that are defined in Section A8, reportingrequirements that are defined in Section Al 1, and (3) data deliverables that are requested from thelaboratory, as discussed in Section Al 1.

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D3 RECONCILIATION WITH DATA QUALITY OBJECTIVES

The main purpose of a QA system is to define a process for collecting data that are of known quality, arescientifically valid, are legally defensible, and fully support any decisions that will be based on the data.To achieve this purpose, the QAPP requires mat DQOs be fully defined (Section A8). All other parts ofthe QA system must then be planned and implemented in a manner that is consistent with me DQOs. QAsystem components mat follow directly from the DQOs include (1) documentation and reportingrequirements (Section Al 1); (2) sample process design and sampling methods requirements (Sections Bland B2); (3) analytical methods and analytical service requests (Section B4); (4) QC requirements(Section B5); and (5) data reduction, validation, and reporting methods (Sections Dl and D2).

After environmental data have been collected, reviewed, and validated, the data will undergo a finalvalidation to determine whether the DQOs specified in the QAPP have been met. Tetra Tech will followEPA's DQA process to verify that the type, quality, and quantity of data that are collected are appropriatefor their intended use.

First, the DQA process involves (1) verifying that the data have met the assumptions under which thedata collection design and DQOs were developed, and (2) taking appropriate corrective action if theassumptions have not been met. Second, the DQA process evaluates me extent to which the data supportthe decision that must be made so that scientifically valid and meaningful conclusions can be drawn fromthe data. To the extent possible, Tetra Tech will follow DQA methods and procedures that have beenoutlined by EPA (U.S. EPA 1996a).

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REFERENCES

American Public Health Association. 1989. "Standard Methods for the Examination of Water andWastewater." Published jointly with American Water Works Association and Water PollutionControl Federation. Seventeenth Edition.

Louisiana Department of Environmental Quality 1998. "Risk Evaluation/Corrective Action Program."December.

PRC Environmental Management, Inc. (PRC). 1996a. "Quality Assurance Project Plan for Response .Action Contract for Remedial, Enforcement, and Nontime-Critical Removal Activities in U.S.Environmental Protection Agency (EPA) Region 6." October.

PRC. 1996b. "Quality Management Plan for Response Action Contract for Remedial, Enforcement, andNontime-Critical Removal Activities in EPA Region 6." October.

Tetra Tech EM Inc. (Tetra Tech). 1998a. "Data Management Plan for Remedial Investigation,Feasibility Study (RI/FS), Delatte Metals Superfund Site, Tangipahoa Parish, Louisiana."December.

Tetra Tech. 1998b. "Work Plan for RI/FS, Delatte Metals Superfund Site, Tangipahoa Parish,Louisiana." November.

Tetra Tech. 1999a. "Field Sampling Plan Addendum 2 for RI/FS, Delatte Metals Superfund Site,Tangipahoa Parish, Louisiana." March.

Tetra Tech. 1999b. "Health and Safety Plan for RI/FS, Delatte Metals Superfund Site, TangipahoaParish, Louisiana." March.

U.S. Environmental Protection Agency (EPA). 1989. "Risk Assessment Guidance for SuperfundVolume I, Human Health Evaluation Manual (Part A)." Interim Final. December.

U.S. EPA. 1990. "Risk Assessment Guidance for Superfund Volume I, Development of Risk-BasedPreliminary Remediation Goals (Part B)." Interim Final. December.

U.S. EPA. 1992a. "Dermal Exposure Assessment: Principles and Applications." Interim Report.January.

Delatte MetalsRegion 6 QAPPSection: ReferencesRevision: 00Date: March 26,1999Page: 2 of 3

REFERENCES (Continued)

U.S. EPA. 1992b. "Specifications and Guidance for Obtaining Contaminant-Free SamplingContainers." Office of Solid Waste & Emergency Response (OSWER). Washington, DC.Directive Number 9240.0-05A. April.

U.S. EPA. 1993. "Data Quality Objectives Process for Superftmd, Interim Final Guidance." OSWER.Washington, DC. Document Number EPA 540-R-93-071. September.

U.S. EPA. 1994a. "Contract Laboratory Program (CLP) Statement of Work (SOW) for OrganicsAnalysis, Multi-Media, Multi-Concentration." Document Number OLM03.1. August.

U.S. EPA. 1994b. "Guidance for the Data Quality Objectives Process, Final." Quality AssuranceManagement Staff. Washington, D.C. Document Number EPA QA/G-4. September.

U.S. EPA. 1994c. "CLP National Functional Guidelines for Organic Data Review." OSWER.Washington, D.C. Publication Number 9240.1-05.

U.S.EPA. 1995. "CLP SOW for morgamcs Analysis, Multi-Media, Multi-Concentration." DocumentNumber ILM 04.0.

U.S. EPA. 1996a. "Guidance for Data Quality Assessment, Practical Methods for Data Analysis, QA96Version." Office of Research and Development. Washington, D.C. Document NumberEPA QA/G-9 (EPA/600/R-96/084). July.

U.S.EPA. 1996b. "EPA Region 6 Human Health Media-Specific Screening Levels." Dallas, Texas.October 30.

U.S.EPA. 1996c. "Test Methods for Evaluating Solid Waste: Chemical/Physical Methods." SW-846.Third Edition. Update in. December.

U.S. EPA. 1997. "EPA Requirements for Quality Assurance Project Plans for Environmental DataOperations." Quality Assurance Management Staff. Washington, D.C. Document Number EPAQA/R-5. October.

U.S. EPA. 1998a. "SOW for RI/FS, Delatte Metals Superfimd Site, Tangipahoa Parish, Louisiana."September 30.

Delatte MetalsRegion 6 QAPPSection: ReferencesRevision: 00Date: March 26,1999Page; 3 of 3

REFERENCES (Continued)

U.S. EPA. 1998b. "Screening Level Ecological Risk Assessment Protocol for Hazardous WasteCombustion Facilities." Review Draft. Office of Solid Waste. Dallas, Texas.EPA-R6-098-003.

U.S. EPA. 1998c. "Integrated Risk Information System (IRIS)." On-Line Chemical Database. Officeof Research and Development. Washington, D.C.

U.S. EPA. 1998d. "Drinking Water Regulations and Health Advisories." On-line Chemical Database.Office of Water. Washington, D.C.

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