9109218 illllili - United States Environmental Protection ... · 6 MNA Parameters 7 SOPs Utilized ... The project team includes technical professionals with expertise in project management,

DECEIVED 004 FEB 20 Pli 3-h2

AR/OK/rx BRANCH

NORTH CAVALCADE SUPERFUND SITE TXD 9808 73343

FIELD SAMPLING PLAN FOR QUARTERLY MONITORING OF

EXISTING WELLS

Prepared by:

Texas Commission on Environmental Quality Remediation Division

Superfund Cleanup Section 12100 Park 35 Circle, Building D

Austin, Texas 78753

and:

Shaw Environmental, Inc. 1430 Enclave Parkwaj Houston, Texas 77077

February 19,2004

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Table of Conter)ts

List of Tables iii List of Figures iii List of Appendices iii 1.0 INTRODUCTION 1-1

1.1 PURPOSE '. 1-1 1.2 REFERENCE DOCUMENTS 1-1 1.3 DOCUMENT CONTROL 1-2 1.4 PROJECT TEAM AND RESPONSIBILITIES 1-2

2.0 SITE AND PROJECT SUMMARY 2-1 2.1 PROJECT SCOPE AND PURPOSE 2-1 2.2 SITE LOCATION 2-1 2.3 SITE DESCRIPTION 2-1 2.4 PREVIOUS ANALYTICAL RESULTS 2-2 2.5 CURRENT UNDERSTANDING OF GEOLOGY/HYDROGEOLOGY 2-2

3.0 ANALYTICAL REQUIREMENTS AND DATA QUALITY OBJECTIVES 3-1 3.1 GENERAL 3-1 3.2 COCs AND ANALYTES 3-1 3.3 ANALYTICAL METHODS 3-1 3.4 LABORATORIES 3-2 3.5 LEVELS OF REQUIRED PERFORMANCE (LORPs) 3-2 3.6 METHOD QUANTITATION LIMITS (MQLs) 3-3 3.7 DATA REPORTING AND DATA REVIEW 3-3 3.8 ANALYTICAL RESULTS TURNAROUND TIME PROJECT DELIVERABLES 3-4

4.0 SAMPLING PLAN 4-1 4.1 GENERAL : 4-1 4.2 GROUNDWATER SAMPLING APPROACH 4-1 4.3 QA/QC SAMPLES 4-2

4.3.1 Matrix Spike/Matrix Spike Duplicate Samples (MS/MSD) 4-2 4.3.2 Equipment Blank Samples 4-2 4.3.3 Trip Blank Samples 4-3 4.3.4 Field Duplicate Samples 4-3 4.3.5 Temperature Blank Samples'. 4-4

5.0 SAMPLING METHODS AND SAMPLE HANDLING 5-1 5.1 SAMPLING METHODS.... ...5-1

5.1.1 Groundwater Sampling from Monitor Wells 5-1 5.2 SAMPLE VOLUMES, CONTAINER TYPES, AND PRESERVATION

REQUIREMENTS 5-1 5.3 SAMPLE HANDLING 5-1

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6.0 FIELD SURVEY AND MEASUREMENTS 6-1 6.1 LINEAR MEASUREMENTS 6-1 6.2 WATER LEVEL MEASUREMENTS AND NAPL OBSERVATIONS 6-1 6.3 ORGANIC VAPOR MONITORING 6-1

7.0 ADDITIONAL FIELD ACTIVITIES 7-1 7.1 SURVEY MARKING AND INTERFACE WITH PROFESSIONAL SURVEYOR 7-1 7.2 DOCUMENTATION 7-1

7.2.1 Photographic Documentation 7-2 7.2.2 Chain-of-Custody 7-2

7.3 DECONTAMINATION ; 7-2 7.4 INVESTIGATIVE DERIVED WASTE 7-3 7.5 SITE RESTORATION 7-3

8.0 EXCEPTIONS, ADDITIONS AND CHANGES TO THE SSF QAPP 8-1

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List of Tables

1 FSP Approval, Distribution and Key Participants 2 Description of Tasks 3 Well Identification Numbers and Previous Analytical Results 4 Concentration Ranges for COCs 5 Part D Method 8260 - Analytes, COCs, MQLs and LORPs 5 Part F Method 8270 - Analytes, COCs, MQLs and LORPs 6 MNA Parameters 7 SOPs Utilized 8 Type and Number of Q/^QC Samples Estimated Sampling and Analysis

List of Figures

1 Vicinity Map Site Location Map 2 Site and Well Location Map 3 Example Sample Label 4 Example Chain-of-Custody Form

List of Appendices

A Laboratory MQLs B TCEQ Standard Operating Procedures (SOPs) C DQO Documentation

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List of Acronyms and Abbreviations

AL Assessment Level (TRRP) ASTM American Society for Testing and Materials °C Degrees Celsius CERCLA Comprehensive Environmental Response, Compensation, and Liability Act C-O-C Chain-of-Custody COCs Chemicals of Concem CEI Compliance evaluation inspection DOT Department of Transportation DQO Data Quality Objective EPA Enviromnental Protection Agency FSP Field Sampling Plan G glass HCl hydrochloric acid HDPE high-density polyethylene HSA Hollow Stem auger HSP Health and Safety Plan IDW Investigative Derived Waste |ig/kg micrograms per kilogram mg/kg milligram per kilogram mg/L milligram per liter ug/L microgram per liter MCL Maximum Contaminant Level MNA monitored natural attenuation MS/MSD matrix spike/matrix spike duplicate OVM organic vapor meter PAH poly aromatic hydrocarbon PCB Polychlorinated Biphenyls PCL Protective Concentration Levels PPE Personal Protective Equipment ppm parts per million QA Quality Assurance QAPP Quality Assurance Project Plan QC Quality Confrol RI/FS Remedial Investigation/ Feasibility Study SAP Sampling and Analysis Plan SOP Standard Operating Procedure SPLP Synthetic Precipitation Leaching Procedure

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SSF State Superfimd SVOC Semivolatile Organic Compound SWDA Solid Waste Disposal Act TAC Texas Administrative Code TCEQ Texas Commission on Environmental Quality TCLP Toxicity Characteristic Leaching Procedure TRRP Texas Risk Reduction Program VOC Volatile Organic Compound

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1.0 INTRODUCTION

1.1 PURPOSE

The Texas Commission on Environmental Quality (TCEQ) is undertaking investigations to

fiirther characterize the source contaminants and delineate the extent of contamination in soils and

groundwater, at the North Cavalcade Superfund site (the site) in northeast Houston, Harris County,

Texas. Figure 1 presents a Vicinity Map ofthe area. The site has been used for creosote operations

in years past. The TCEQ has requested that Shaw Environmental, Inc. (Shaw) implement the tasks

described in this Field Sampling Plan (FSP) under TCEQ Contract 582-3-49179. This FSP

addresses only gauging, sampling and analyses for existing wells planned for November 2003 and

subsequent quarterly sampling events.

The FSP presents the requirements and procedures for conducting field operations and

investigations. This project specific FSP has been prepared to ensure that:

• The data quality objectives in the field and laboratory are satisfied.

• The field sampling protocols are documented and reviewed in a consistent manner.

• The data collected are scientifically valid and defensible.

This project-specific FSP and the TCEQ Quality Assurance Project Plan (QAPP) for the

Superfund Program (Document No. 200919.2) (Superfund QAPP) as revised or amended by

Section 8 of this FSP, will constitute the Sampling and Analysis Plan (SAP) for the site during this

field effort. A separate Health and Safety Plan (HSP) has been prepared by Shaw to monitor

workers during implementation ofthe FSP. Key participants and persons responsible for approval

and distribution ofthe FSP are included in Table 1. Major tasks associated with the quarterly

sampling effort are depicted in Table 2.

1.2 REFERENCE DOCUMENTS

General guidelines followed in the preparation of this FSP are set out in the following documents:

• Data Quality Objectives Process for Hazardous Waste Site Investigations (US EPA, June 1999); and

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• Guidance for Conducting Remedial Investigations and Feasibility Studies imder CERCLA (US EPA, October 1988). Additional reference documents used in the preparation of this FSP include:

This FSP is required reading for all staff participating in the work effort. The FSP will be in the

possession ofthe field teams collecting the samples. All confractors and subcontractors shall have

access to this FSP and are required to comply with the procedures documented in this FSP in order

to maintain comparability and representativeness ofthe collected and generated data.

1.3 DOCUMENT CONTROL

Controlled distribution ofthe FSP will be implemented to ensure that the current approved version

is always being used by the project personnel. A sequential numbering system will be used to

identify controlled copies ofthe FSP. Controlled copies will be provided to all parties identified in

the distribution list that follows the approval page ofthe FSP. Whenever revisions are made or

addenda added to the FSP, a document control system will be put into place to ensure that:

• All parties holding a controlled copy ofthe FSP receive the revisions and/or addenda; and

• Outdated material is removed from circulation.

The document control system does not preclude making and using copies ofthe FSP; however, the

holders of controlled copies are responsible for distributing additional material to update any

copies within their organizations. Shaw shall maintain the distribution list for confrolled copies.

1.4 PROJECT TEAM AND RESPONSIBILITIES

The project team includes technical professionals with expertise in project management, quality

assurance (QA), chemistry, civil and geotechnical engineering, geology and/or other applicable

fields. These individuals are responsible for internal communication and planning to ensure that

all data obtained can be used for the intended purpose, and to provide the direction and supervision

needed to ensure that technically sound decisions are made within their areas of expertise. The

project team and task leaders and their responsibilities are listed in Table 1 and discussed below.

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Project Manager

Russell Perry of Shaw in the Houston, Texas office, is the Project Manager with responsibility for

the contractual aspects ofthe project and for the quality of all project deliverables. Within Shaw,

the project manager has overall responsibility to ensure that all activities are performed in

accordance with TCEQ requirements and Shaw's policy. Mr. Perry has the primary responsibility

for decision-making and communication with the TCEQ. He is responsible for ensuring that the

technical activities have appropriate planning and oversight for assurance of overall quality in data

collection and report production to meet or exceed project requirements.

Field Task Leader

Paul Rangel will serve as the Field Task Leader responsible for the implementation ofthe FSP

relative to gauging and sampling of existing wells at the site. As Field Task Leader, he wall direct

all fieldwork, communicate any difficulties encountered in the field to project management, and

stop work if safety or data quality are significantly affected by site operations.

Data Review/Validation

Debra Hagemeier of Shaw is responsible for data review and validation for analytical data as

described in the Superfund QAPP.

Laboratory Representative

Gregory Grandits of Accutest Laboratories Gulf Coast, Inc. (Accutest) will have the responsibility

of quality assurance in the laboratory. Mr. Grandits will assure that the Data Packages are provided

within the specified time period and in accordance with the requirements for review, formatting

and content for data packages specified in the Superfund QAPP.

Technical Review

Greg Long of Shaw will perform technical review duties associated with all project documents.

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2.0 SITE AND PROJECT SUMMARY

2.1 PROJECT SCOPE AND PURPOSE

The goal of this investigation is to determine whether in-situ stabilization ofthe process area, along

with Monitored Natural Attenuation (MNA) ofthe groundwater emanating from this area is an

appropriate remedy. The purpose of this project is to continue to characterize COCs in

groundwater at the Site through quarterly monitoring of existing wells. Standard investigative

methods will be utilized. Shaw will prepare a Technical Memorandum summarizing the results of

field and analytical work.

2.2 SITE LOCATION

The North Cavalcade Superfund site is located at 2011 Cavalcade Street in northeast Houston,

Harris County, Texas, about one mile southwest ofthe intersection of Interstate Loop 610 and US

route 59. The site is a 5 acre triangular-shaped parcel of land with the long axis frending generally

north-south. A vicinity map is presented in Figure 1, and a site map is presented in Figure 2.

2.3 SITE DESCRIPTION

In 1946, the site was developed for wood treating by Leon Aron (Houston Creosoting Co., Inc.),

and operated until a bank foreclosed in 1961. The property was vacant until the early 1970s, and

two warehouses were built by 1980. Initial investigations in the mid-1980s included the

installation of numerous soil borings and monitor wells.

The site is presently comprised of various land tracts separately owned by Coastal Casting

Company, the Eichenhour family and the Dover family. On June 28, 1988, the Environmental

Protection Agency (EPA) issued a Record of Decision (ROD) for the site calling for groundwater

freatment through oil/water separation and carbon absorption and biological freatment of

contaminated soils. In 1992 a field treatability study determined that under ideal conditions that

bioremediation could reduce carcinogenic PAH (cPAH) concenfrations in soils to approximately

30 ppm. In July 1994 the North Cavalcade Superftind Site Explanation of Significant Differences

(ESD) established a new cPAH remedial cleanup goal as 30 ppm.

Groundwater contamination, including both dissolved and non-aqueous phase liquids (NAPLs)

[both DNAPL (dense) and LNAPL (light)], exists at the North Cavalcade Superfund site in the

vicinify ofthe former process area. The site was used for wood preserving activities, using

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creosoting techniques, for a number of years. A groundwater treatment plant and extraction wells

have been operating at the site since about 1993. The treatment plant removed a large amount of

contaminated groundwater and NAPL. In years past a disposal cell was constructed on the site and

creosote-impacted soils from the process area were disposed in it. It has been determined that a

reevaluation ofthe selected remedy for both the contaminated soil and groundwater in the process

area, and the disposal cell is appropriate.

2.4 PREVIOUS ANALYTICAL RESULTS

Table 3 presents a summary of analytical results following a recent groundwater monitoring event

that was conducted in May 2003. During the May 2003 sampling event, all wells at the site were

sampled, and submitted to a laboratory for analysis of volatile organic compounds (VOCs) and

semi-volatile organic compounds (SVOCs). Table 4 presents a summary of concentration ranges

for chemicals of concem (COC) at the site.

2.5 CURRENT UNDERSTANDING OF GEOLOGY/HYDROGEOLOGY

A total of forty-eight monitor, observation or extraction wells presently exist at the site. Numerous

borings and temporary sampling points have been installed in years past. Contaminated

groundwater and DNAPL is present in the shallow and intermediate penneable zones less than 40

feet BGS. Groundwater flow at the site in the shallow, intermediate, and deep zones is fraverses

east to west-southwest along the southem boundary ofthe site. The fault may provide-a barrier to

contaminant transport to the south. The uppermost sand unit (shallow) is the main flow and

transport zone. The underlying interbedded zone consists of sand and clay layers. The clay units

appear fractured, based on the observation of slickensides during soil logging operations. The

density of fractures apparently decrease wdth depth.

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3.0 ANALYTICAL REQUIREMENTS AND DATA QUALITY OBJECTIVES

This DQO Process Documentation focuses on the issue ofthe contaminated groundwater

evidenced by the existing wells at the site. The sampling and gauging activities alluded to here are

intended to be repeated on a quarterly basis for 1 year. Before each quarterly sampling event, the

extraction well system will be shut-down for a period of at least one month prior to the gauging and

sampling of the wells.

3.1 GENERAL

Data Quality Objectives (DQOs) are qualitative and quantitative statements that translate

non-technical project goals into technical project-specific decision goals. The seven-step DQO

Process as described in Data Quality Objectives Process for Hazardous Waste Site Investigations

(EPA, 1999) (G-4HW) was not formally completed for this project. That is, outputs for each ofthe

seven steps ofthe DQO Process were not developed in the format suggested in G-4HW. However,

with the exception of DQO Steps 6 and 7 (statistically based sampling plan design), the outputs of

DQO Steps 1-5 were developed by the Superfimd Cleanup Section staff through communications

and informal meetings. The results ofthe informal DQO Process are discussed in the sections

below and in Section 4 conceming the design ofthe sampling plan.

3.2 COCs AND ANALYTES

The list of organic "Analytes" is presented in Table 5, which also shows the various Tier 1 PCLs

and the PCL designated as the TRRP Assessment Level (AL) for each analyte. Those analytes not

designated as COCs on Table 5 will still be analyzed as "Target Analytes" in accordance with the

standard practice ofthe TCEQ Superfund Cleanup Section. C-O-Cs identified from previous

investigations are shown in Table 4 along with the range in concentrations at which they were

detected. All analytes shown in Table 5 will be analyzed as target analytes.

3.3 ANALYTICAL METHODS

In accordance with the standard practice ofthe TCEQ Superfund Cleanup Section (SCS) the most

recent updated versions of EPA methods from SW-846: Test Methods for Evaluating Solid Waste

Physical/Chemical Methods, will be utilized for all analyses.

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Methods 8260B and 8270C will be utilized. Requirements for these analytical methods are briefly

described in the Superfund QAPP and any site specific exceptions, additions or changes to the

requirements ofthe QAPP are described in Section 8 of this FSP.

Additionally, samples for MNA Parameters will be collected and analyzed either via field or

laboratory methods as listed in Table 6.

3.4 LABORATORIES

Each ofthe laboratories utilized has a quality assurance program, in place and implemented, which

meets the requirement set forth by the EPA, National Environmental Laboratory Accreditation

Conference (NELAC) or the International Organization for Standardization (ISO). These

laboratories also have documented SOPs in place, and data on record which demonsfrate their

capabilities to perform each of these methods. Each of these laboratories also has documented

precision, bias, and Method Detection Limit (MDL) information demonstrating the laboratory's

capability (as per NELAC) to meet the objectives specified in the Superfund QAPP for each

analytical method. This infonnation is on file and readily available upon request by the TCEQ.

Additionally, CONSULTANT will provide TCEQ with access to review the laboratory's

procedures and activities that relate to this project, if requested.

Each of these analyses will be performed in accordance with the applicable published methods for

exfraction, cleanup, preparation, determination and v^ll include all method-required and

method-recommended quality confrol steps, including all QA/QC procedures specified in the

laboratory's quality assurance manual that are consistent with the Superfimd QAPP. The QC

acceptance criteria specified in the Superfund QAPP wdll be utilized.

3.5 LEVELS OF REQUIRED PERFORMANCE (LORPs)

The Level of Required Performance (LORP) is a phrase used in the TRRP Rules to specify the

lowest concentration of interest during chemical analyses. In order to show that "clean" samples

were adequately analyzed the Method Quantitation Limit (MQL) should be less than the LORP,

except in special circumstances. The LORP for this project is the TRRP Assessment Level (AL)

for each analyte. The LORPs for each analyte are listed in Table 5.

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3.6 METHOD QUANTITATION LIMITS (MQLs)

Laboratory specified MQLs for all analytes are depicted in Appendix A. Most ofthe selected

MQLs are less than the LORP and all ofthe MQLs for the previously selected COCs are adequate.

The selected MQLs have been judged to be adequate for this investigation.

3.7 DATA REPORTING AND DATA REVIEW

Each laboratory will perform laboratory review on the Reportable and Supporting Data for each

analyses in accordance with the requirements listed in Element D.2.1.1 ofthe Superfund QAPP.

The laboratories will also complete the Laboratory Review Checklist (LRC) and necessary

Exception Reports (ERs) as described in Element D, Element A.9.2.1.1, Element A.9.2.1 and

Attachment 2 ofthe Superfund QAPP. Reportable and Supporting Data are defined in Element

A.9.2.2 and A.9.3, respectively ofthe Superfund QAPP.

Shaw will collect the samples and will deliver them to the laboratories in a manner that allows the

laboratories to batch as many TCEQ project samples together as possible. Analytical results will

be reported using consistent conventions such as mg/l for water, mg/kg for soil, and g/m^ for

vapor or air.

Shaw will perform a Data Usability Review (DUR) (an independent data review) as specified in

Element D.2.1.2 of the Superfund QAPP on each analytical batch. Shaw will perform full data

validation of project data on a minimum often percent ofthe project analytical batches (or at least

one analytical batch per sampling event if there are fewer than 10 batches) as described in Section

D.2.1.3 ofthe Superfund QAPP. Shaw will identify and report issues and concems encountered

during the Data Usability Review and the recommended conective action as soon as possible. The

results of analyses or Certificate of Analyses (a subset ofthe Reportable Data) will be flagged with

the final Data Usability Review qualifiers and bias codes in accordance with criteria given in

Element D. 1.1 of tiie Superfimd QAPP.

Shaw will document the results ofthe DUR in the Data Usability Summary (DUS) prepared in

accordance with the requirements specified in Element D.2.3 and Attachment 2 ofthe Superfund

QAPP. The DUS will discuss what QC measures were reviewed, how these measures were

reviewed, the evaluation criteria used in the review, all items identified as falling outside the

evaluation criteria, the specific data potentially affected, and the potential effect on the quality of

the associated data.

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Upon completion ofthe laboratory review, DUR and DUS, Shaw will submit the DUS and a

Laboratory Data Package consisting of: the Reportable Data; the LRCs; any applicable ERs; and

the Laboratory Release Statement ( as specified in Element A.9.2.1.2 ofthe Superfund QAPP).

The Laboratory Data Package shall be submitted for each analysis or group of analyses.

At the request ofthe TCEQ PM, the preliminary results of analyses or Certificate of Analyses will

be commimicated or conveyed to the TCEQ PM prior to the completion ofthe Laboratory Data

Package, DUR or DUS.

In addition to the Laboratory Data Package, Shaw will ensure that the Supporting Data (as

specified in Element A.9.2.3 ofthe Superfimd QAPP) are on file and readily available upon request

by the TCEQ within 90 days from the date ofthe analysis. However, the laboratory may be

required to submit the Supporting Data at any time, if a review ofthe Reportable Data indicates

that a problem may exist with the data (if the problem was not identified and resolved by the

laboratory), or if the data comes under scrutiny for legal evidentiary reasons. Furthermore, the

Laboratory Data Package and the Supporting Data will be archived and retrievable for at least 10

years from the date of analysis.

3.8 ANALYTICAL RESULTS TURNAROUND TIME PROJECT DELIVERABLES

All analytical results including the data review will be available to the TCEQ Project Manager

within 21 days of sample collection. Data validation vfill be completed 14 days after the data

review. The DUS vsdll be completed 14 days after data validation.

Consultant will submit the results ofthe quarterly monitoring events in a Technical Memorandum

to in include but not be limited to the following:

• Brief discussion of condition of wells during each event.

• Brief discussion of well purging procedures, sample collection and sample analyses.

• Brief discussion of water levels meeisured during events and comparison to past measurements.

• Brief discussion of any other hydrogeologic features Consultant beheves should be mentioned.

• Brief discussion of all natural attenuation parameters that were measured or for which samples were collected for analysis, and of what types of site-specific COCs can be biodegraded.

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Discussion of order of preferential use of electron acceptors in biodegradation, both in time and spatially in a groundwater plurhe.

Figure showing order of preferential use of electron acceptors.

Figure showing zones of electron acceptor use in an idealized groundwater plume.

Brief discussion of ranges of measurements of natural attenuation parameters in which biodegradation is likely to happen.

Discussion of contaminant and natural attenuation parameters results for the three events. In a report foliowdng the second MNA sampling event.

Maps showing contaminant concentrations and natural attenuation parameters measurements. One map per MNA parameter.

X-Y graphs (including linear regression and r-squared of line) of contaminant concentrations over time in three wells, to be chosen by Shaw based on Shaw's expertise.

Discussion of Shaw's rationale for choosing the three wells chosen for x-y graphs.

Interpretive discussion of contaminant and natural attenuation parameters results including whether the evidence indicates biodegradation is occuning, which elecfron acceptors are being used in which wells, and what the limiting factors for biodegradation are.

Consultant's recommendations for future work regarding biodegradation at the site.

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4.0 SAMPLING PLAN

4.1 GENERAL

As previously stated, the purpose of this investigation is to characterize the nature and extent of

COCs in groundwater at the site in order to evaluate MNA as a remedy. In order to accomplish this

goal, the identity and concentration of COCs will need to be determined at specified locations.

Investigative Derived Waste (IDW) will be properly labeled and stored for subsequent disposal, as

described in Section 6. Sample collection techniques are described in applicable Standard

Operating Procedures, which are listed in Table 7. Sample numbering will be based on the

previously established well numbering system and will use a logical approach.

All sampling activities will be recorded in the field logbook or forms in accordance with Superftind

SOP 6.1 (Documentation). Plastic sheeting will be used to provide a clean working area around

each sample location, and prevent contaminated soil contacting sampling equipment. The

breathing zone will be monitored using the OVM or PID while sampling wells with knovra NAPL

content. Appropriate Personnel Protective Equipment and clothing will be wom including

Phthalate-free protective gloves.

4.2 GROUNDWATER SAMPLING APPROACH

The purpose of this investigation is discussed in Appendix A (DQO Documentation). However,

the primary purpose of this investigation is the evaluation of MNA as a remedy for the site.

Thirty-two existing wells in the OU-1 area have been selected for sampling as shown in Table 3.

These wells were selected in order to provide an expected variety of concenfrations across the

groundwater plume (e.g., upgradient area of NAPL and downgradient) as well as at differing well

depths. The quarterly monitoring program, along with other groundwater investigations is

designed to:

• Evaluate the concenfrations and extent of dissolved Chemicals of Concem (COCs) and NAPLs;

• Determine the flow directions, gradients and other hydrogeologlcal data during non-pumping conditions of extraction wells; and

• Evaluate the potential effectiveness of MNA on reduction of the dissolved plume.

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Because MNA is being evaluated to replace the active pumping and disposal system, it is necessary

that the extraction wells be shut-do vm for a period of one month prior to each quarterly monitoring

event in order to evaluate the groundwater conditions during non-pumping conditions.

Samples from each ofthe designated wells will be analyzed for VOCs, SVOCs, and the MNA

parameters listed in Table 6. Some ofthe MNA Parameters will be analyzed using field

methodologies while others will be analyzed in the laboratory. The samples will be collected using

non-standard low-flow purging methods specified by the EPA oversight for this project.

Exceptions to the QAPP relative to purging will be discussed in Section 8 of this document.

4.3 QA/QC SAMPLES

The type and number of QA/QC samples planned are depicted in Table 8.

4.3.1 Matrix Spike/Matrix Spike Duplicate Samples (MS/MSD)

MS/MSD samples will be collected in accordance with TCEQ SOP No. 6.5 (Collection of QA/QC

Samples). The sampler will identify the sample for MS/MSD analysis on the chain-of-custody.

The sampler will collect the MS/MSD samples as replicate samples but with three sets of samples

identified and submitted to the laboratory for spiking (one original, one matrix spike sample, and

one matrix spike duplicate). MS/MSD samples will be collected at a frequency described in Table

8. MNA parameters will not be included in the MS/MSD sampling program.

4.3.2 Equipment Blank Samples

Equipment blanks will be needed for the sampling event to determine possible contamination from

sampling equipment. A peristaltic pump with new, disposable tubing will be used to sample all but

three wells. Equipment blanks will be collected by purging de-ionized water through the tubing

and into the sample bottles. Deep wells will be sampled with disposable bailers, and if equipment

blanks are required, de-ionized water will be poured through the bailers and into the sample

bottles.

Equipment blanks will be collected at a frequency of one per day. MNA parameters will not be

included in the equipment blank sampling program. Equipment blanks will be collected according

to the following procedures:

• All sampling devices will be new, disposable materials.

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• The proper sample containers and an appropriate quantity of analyte-free water (deionized or distilled) will be selected.

• Sample labels will be completed with the appropriate information for the sample to be collected.

• The analyte-free water will be slowly poured or pumped through the sampling device until the sample bottle is filled to the appropriate level.

• The bottle cap will be securely tightened.

• The bottle will be prepared for shipment in accordance with SOP 6.4 (Sample Handling and Control).

4.3.3 Trip Blank Samples

Trip blanks will be collected according to SOP 6.5 (Collection of QA/QC Samples). Trip blanks

consist of a volatile organic compound (VOC) sample vial filled in the laboratory with American

Society for Testing Materials (ASTM) Type II reagent grade water, transported to the sampling site,

handled like an environmental sample and returned to the laboratory for analysis. Trip blanks are

not opened in the field. Trip blanks are prepared only when VOC samples are taken and are

analyzed only for VOC analytes. Trip blanks are used to assess the potential introduction of

contaminants from sample containers or during the transportation and storage procedures. One frip

blank shall accompany each cooler of samples sent to the laboratory for analysis of VOCs. The trip

blank shall be identified on the chain-of-custody record.

4.3.4 Field Duplicate Samples

A field duplicate sample is a second sample collected at the same location as the original sample.

Duplicate sample results are used to assess total precision, which includes variability associated

with both the sample collection process and with laboratory analysis. Diqjlicate samples will be

collected simultaneously or in immediate succession, using identical recovery techniques, and

freated in an identical manner during storage, transportation, and analysis. MNA parameters will

not be included in the duplicate sampling program.

Duplicate samples will be collected at a frequency of 10 percent ofthe sample population in

accordance with TCEQ SOP No. 6.5 (Collection of QA/QC Samples). The field team leader is

responsible for ensuring that the frequency requirements for field duplicate samples are met. There

is no conective action for the failure to achieve this goal, however, the information will be used to

evaluate data quality.

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4.3.5 Temperature Blank Samples

One temperature blank per cooler will be included with each cooler in accordance with SOP 6.5

(Collection of QA/QC Samples). Temperature blanks are typically prepared by the analytical

laboratory and included in the shipment of sample coolers and containers. One temperature blank

will be returned to the laboratory in each sample cooler.

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5.0 SAMPLING METHODS AND SAMPLE HANDLING

5.1 SAMPLING METHODS

5.1.1 Groundwater Sampling from Monitor Wells

Each monitor well will be purged, monitored arid sampled using non-standard techniques specified

by the EPA. Exceptions to the QAPP are disciiSsed in Section 8 of this document. Specifically, a

peristaltic pump connected to a flow-through cell will be used to sample all but three deep wells.

The deep wells will be sampled with a bailer, using Superfimd SOP 7.2 (Purging a Monitoring

Well with a Bailer). Measurement of field parameters using a peristaltic pump will NOT be

conducted following stabilization of indicator parameters during purging, but will commence after

the flow-through cell has filled enough to submerge the instrument probes enough to collect an

instrument reading.

5.2 SAMPLE VOLUMES, CONTAINER TYPES, AND PRESERVATION

REQUIREMENTS

A summary ofthe requirements for containers, preservation techniques, sample volumes and

holding times for each sample analyte is presented in the Superfund QAPP. Samples will be

collected and shipped to the laboratory for analysis of VOCs by EPA Methods 5030B/8260B and

SVOCs by EPA Methods 3510C/8270C. Trip blanks, will be prepared and provided by the

laboratories. Trip and equipment blanks for VOC analyses will be pre-preserved with hydrochloric

acid (HCl). All samples will also be preserved by cooling to 4 degrees centigrade (4° C). All

sample containers will be filled with a minimal amount of head space present when capped.

5.3 SAMPLE HANDLING

Trip blanks, provided by the lab, equipment blanks and field blanks for VOC analyses will be

pre-preserved with hydrochloric acid (HCl). Samples will also be preserved in an ice chest at a

temperature of 4° C. All sample containers will be filled leaving a minimal amount of headspace

when capped.

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Sample handling and packaging will be perfoimed iri accordance with Superfund SOP No. 6.4

(Sample Handling and Control). Chain-of-custody (C-O-C) procedures will be followed to frack

all samples collected and shipped to off-site laboratories, in accordance with this SOP. Samples

includirig field QC samples will be shipped to the laboratory in batches of not more than 20 as

designated by the C-O-C to insure proper analytical batch reporting.

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6.0 FIELD SURVEY AND MEASUREMENTS

6.1 LINEAR MEASUREMENTS

Elevations and linear distances will be measured by a Texas Registered Surveyor.

6.2 WATER LEVEL MEASUREMENTS AND NAPL OBSERVATIONS

Water level measurements will be made in each monitor well prior to well sampling or purging.

The measurements will be made in accordance with Superfund SOP 7.1. LNAPL and DNAPL

measurements will be made with appropriate detection devices and recorded to the nearest tenth of

a foot. The presence and thickness of LNAPLs and DNAPLs will be observed using organic vapor

detection, odor, visual observations and direct measurement.

6.3 ORGANIC VAPOR MONITORING

The breathing zone will be monitored using an Organic Vapor Meter (OVM) or Photo-ionization

Detector (PID) while samples are collected in wells with known NAPL content. The operation and

maintenance of these instruments are described in the instmment operating manual, which will

accompany each instrument to the field. The actions resulting from exceedences of OVM or PID

Action Levels are specified in the site Health and Safety Plan.

The instrument will be calibrated as described in the instrument documentation (e.g., operating

manual). The OVM will be calibrated with the use of instrument-specific calibration gas. During

this calibration, an appropriate maintenance check will be performed on the OVM. If damaged or

failed parts are identified during the daily maintenance check and it is determined that the damage

can impact the instrument's performance, the instrument will be removed from service until the

part or parts are replaced or repaired. An equivalent piece of equipment will be substituted for the

malfunctioning instrument.

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7.0 ADDITIONAL FIELD ACTIVITIES

7.1 SURVEY MARKING AND INTERFACE WITH PROFESSIONAL SURVEYOR

A Texas Registered Surveyor will be retained by Shaw to re-survey the X, Y, and Z coordinates of

all existing well locations referenced to the Texas Coordinate System and mean sea level (listed in

Table 3), top of casing elevations, and select ground elevation locations. Ground elevation data

will be used to prepare a topographic map ofthe site.

7.2 DOCUMENTATION

All sampling activities will be recorded in the field logbook or forms in accordance with Superfimd

SOP No. 6.1 (Documentation). Field records sufficient to recreate sampling and measurement

activities will be maintained during all field work in accordance with Superfund SOP 6.1

(Documentation). Documentation will be made with indelible ink in a permanently bound

notebook with sequentially numbered pages. These records will be archived in an easily accessible

form and made available to the TCEQ upon request.

At a minimum, the location, date, time, name of personnel involved, and weather conditions will

be recorded for all field activities. The numerical value, units of measure, identity of parameter

measured and calibration time and results will also be recorded for each field measurement

The following additional information will be recorded for all sampling activities:

Sample type (e.g., soil, groundwater, etc).

Sampling method and devices.

Sample identification numbers.

Sample depth and location.

Sample volume.

Sample description (e.g., color, odor, clarity).

Type of sample container.

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• Type and amount of preservatives used, if applicable.

• Observations that might affect sample results (e.g., refueling operations, damaged casing).

7.2.1 Photographic Documentation

Any significant damage noted to the monitor or extraction wells will be documented with

photographs.

7.2.2 Chain-of-Custody

All off-site sample shipments will be accompanied by the chain-of-custody (C-O-C) record, which

identifies the contents ofthe shipment. The original C-O-C record plus copies will accompany the

shipment with one copy retained in the project file. Another copy will be returned to the project

team with the analytical results. A sample label form is depicted in Figure 3 and an example of a

C-O-C form is provided in Figure 4.

Shaw will collect the samples and relinquish them to a representative ofthe analytical laboratory,

who will sign the C-O-C to acknowledge receipt ofthe samples. Altematively the samples will be

relinquished to a canier service (e.g.. Federal Express, United Parcel Service); in this case Shaw

will make a notation to that effect on the C-O-C record.

Preformatted C-O-C records will be used as the primary documentation mechanism to ensure that

information pertaining to each sample is recorded. In addition, field notebooks and a master

sample log will be maintained for all samples collected. Copies ofthe C-O-C records and the field

logs will be retained in the project file.

7.3 DECONTAMINATION

All equipment potentially coming into contact with contaminated media, will be decontaminated

according to Superftind SOP No. 1.5 (Decontamination). A centralized decontamination area will

be provided for the equipment and the area prepared in accordance with Superfund SOP No. 1.2

(Preparation and Control). The decontamination area will be lined with heavy gauge plastic

sheeting, and designed with a collection system to capture decontamination waters. IDW

generated by decontamination procedures will be accumulated in 55-gallon drums for disposal.

Smaller decontamination areas for personnel and portable equipment will be provided as necessary

in accordance with the Health and Safety Plan.

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All disposable Personal Protective Equipment (PPE) will be decontaminated such that it can be

disposed as Class 3 waste.

*****(We already containerize PPE associated with work performed at the freatment system for

disposal by incineration. Time (money) to clean all ofthe PPE such that it can be disposed as Class

3 waste will be staggering) *****

7.4 INVESTIGATIVE DERIVED WASTE

All IDW will be handled in accordance with SOP No. 1.4 (Management of Investigative Derived

Waste). Shaw will be responsible for the collection and containerization of all IDW. If it is

encountered, obviously contaminated IDW (e.g., oily soil cuttings) will be kept segregated from

the non-contaminated IDW. Shaw will utilize acceptable containers such as U.S. Department of

Transportation (DOT)-approved steel 55-gallon drums for storage of IDW. The containers vi ll be

transported to the staging area in such a manner as to prevent spillage or evaporative loss to the

atmosphere. Wastewater IDW will be transported to the site treatment system for processing when

the freatment system is restarted after completion of sampling activities.

Shaw will label all IDW storage containers with the date of accumulation, description ofthe

materials, the source ofthe materials and the sample numbers which will be used to classify them.

All containers will be stored in a segregated staging area designated for the purpose. In addition

Shaw will complete a log of all ofthe IDW information and labeling and will provide a rough

sketch ofthe IDW locations with the numbers (or other identifiers) of each IDW container

indicated in the sketch.

Purge water from monitor wells will be containerized and stored pending treatment through the site

freatment system.

7.5 SITE RESTORATION

Each work site or sampling location will be retumed to its original condition when possible in

accordance with TCEQ SOP No. 1.3 (Site Restoration). Efforts shall be made to minimize impacts

to work sites and sampling locations, particularly those in or near sensitive environments.

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8.0 EXCEPTIONS, ADDITIONS AND CHANGES TO THE SSF QAPP

Exceptions, additions and changes to the TCEQ Superfund Program QAPP (Document Control

Number 2009191) are as follows:

Field Modifications

• No replicate samples will be collected during this investigation. According to the QAPP, replicates are duplicates that are sent to a different lab. Section B.5.4.12 ofthe QAPP conceming field replicates provides the following definition:

"A field replicate sample (also called a field split sample) is a single sample divided into two equal parts for analysis. The sample containers are assigned an identification number in the field, such that they cannot be identified as replicate samples by laboratory personnel performing the analysis. Specific locations are designated for collection of field replicate samples prior to the beginning of sample collection.

Replicate sample results are used to assess sampling precision, the laboratory analysis precision, and/or the performance between two or more laboratories. Precision of soil samples to be analyzed for VOCs is assessed from collocated samples because the compositing process required to obtain uniform samples could result in loss ofthe compounds of interest.

Ten percent of all field samples shall be split into field replicates to be analyzed by a second laboratory. The frequency of collection for field replicates is to be specified in Section 4 ofthe FSP."

• Purging and measurement of field parameters will not be conducted according to the Superftind QAPP SOPs due to a request from Mr. David Abshire of EPA Region 6. David requested that only a liter of fluid should be purged from the wells prior to collection of MNA parameters and subsequent samples. The reason why Mr. Abshire requested this procedure was to limit the sampling time in the field, and prevent dilution ofthe samples from excessive groundwater outside ofthe well filter pack. For this reason, Shaw will not be purging the wells vintil indicator parameters stabilize, which is the standard EPA SOP for low-flow sampling. Shaw intends to purge water using a peristaltic pump (in all but three deep wells), through a flow-through cell. The volume of water purged will be greater than the volume ofthe flow through cell, in order to submerge the cell in water to obtain an instrument reading. After instrument readings are obtained, samples will be collected in the following order: VOCs, SVOCs, and MNA parameters.

Superfund SOPs that Shaw will not be following relative to purging and sampling include Superftmd SOP 7.3 (Purging a Monitoring Well with a Pump), Superfund SOP 7.5

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(Measurement of Field Parameters) and Superftmd SOP 7.8 (Groimdwater Sampling Using Low Flow Techniques).

• Equipment blank samples will be collected from disposable sampling materials before they are used for quality control purposes. All sampling equipment that will be in contact during the sampling event will be constructed of disposable materials, such as tubing and bailers. TCEQ SOP No. 6.5 (Collection of QA/QC Samples) will not be followed, relative to collection of equipment blanks from decontaminated sampling materials.

• The standard TAT for PLFA biomass sampling is 30 days. PLFA biomass laboratory results will be reported separately from the other analytical results for this sampling event if they are not received prior to preparation ofthe final report. If the PLFA laboratory results are received sooner, Shaw will attempt to include them in the final report with the other laboratory results.

QAPP Modifications

• Laboratory-derived MQLs as presented in Appendix A will be used instead ofthe MQLs presented in Element B5 ofthe QAPP. These MQLs were derived following the protocol stated in SW-846 Method 8000B,section 7.4.1.2 that "lowest concenfration calibration standard that is analyzed during an initial calibration establishes the method quantitation limit based on the final volume of extract (or sample) described in the preparative method or employed by the laboratory."

• The laboratory MDLs and MQLs for EPA Methods 8260C and 8270C as presented in Appendix A. The laboratory MQLs will meet the TCEQ LORPs as presented in Table 5 with the following exceptions:

VOCs 1,2-dibromo-3-chloropropane Ethylene dibromide

SVOCs Bis (2-chloroethoxy) methane Bis (2-chloroisopropyl) ether Bromophenyl phenyl ether 4-chlorophenyl phenylether

The MDL will be used as the evaluation criteria against the TCEQ LORP for these compounds. It should be noted that even the MDLs will be greater than the TCEQ LORP for these compounds.

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TABLES

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TABLE 1 FSP Approval, Distribution and Key Participants

NAME

Marilyn C. Long

Barry Lands

Steve Childress

Jeffrey E. Patterson

Russell Perry

Paul Rangel

Debra Hagemeir

Christy Westell

Greg Long

RESPONSIBILITY

TCEQ Project Manager

TCEQ Assistant Project Manager and Contracts Specialist

TCEQ QA Specialist

TCEQ FSP Coordinator

Shaw

Project Manager

Shaw Field Task Leader

Shaw QA Specialist

A4 Laboratory Representative

Shaw

Technical Reviewer

PHONE NUMBER/ EMAIL

512-239-4513 [email protected]



512-239-2489 JEPA1 [email protected]

281-368-4571

[email protected]

(281) 830-4495

[email protected]

(405) 396-3080

[email protected]

832-443-6625

[email protected]

(281)368-4519

[email protected]

ORGANIZATION

TCEQ Superfund Cleanup Section

TCEQ Superfimd Cleanup Section



Shaw

Shaw

Shaw

A4 Scientific

Shaw

FSP DISTRIBUTION

• /

v"

V

^

V

•/

./

^

FSP APPROVAL SIGNATURE

fiils^îs^;^

,A,-UAA'A

APPROVAL DATE

Z..A'-'--::-A - . ^ , f v . ; • • • ; ; • •

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mailto:[email protected]




































TABLE 2 Description of Tasks

TASK#

1

2

3

4

5

6

7

8

9

10

11

TASK DESCRIPTION

Assistance in preparation of FSP

Measure water levels, LNAPL and DNAPL levels in 48 wells

Observe and note any indications of LNAPL or DNAPL presence by direct measurement (bailer), interface probe, visual, olfactory or organic vapor detection

Collect 39 groundwater samples from sampling points (cell sumps, monitor wells, observation wells and extraction wells) and prepare specified number and type of QA/QC samples

Deliver samples to laboratory

Provide chemical analyses of 39 groimdwater samples (plus specified number and type of QA/QC samples)

Independent data review, data reporting and preparation ofData Usability Summary (DUS) as specified in the State Superfund QAPP

Collect, containerize and label IDW

Dispose of IDW

Provide Technical Memorandum on results of sampling and analyses

Provide surveying of all existing wells

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TABLES Well Identiflcation Numbers

and Previous Analytical Results

Collect Samples (32 wells)

/ •

V

y V

V

V V •"

/ • • y /

-/ • • / V • /

• • v'

• /

•

• / ,^ v'

V V • /

Gauge & NAPL

Observations (all weUs)

• y • / v'

• /

/ • y / / • • • / • • /

y / • • /

•/ • /

y V / • v'

/ / ,/ •/ V • ,^ • • • • / • ,^ / / • </ / •

Well ID MW-01 MW-02 MW-03 MW-04 MW-05 MW-06 MW-07 MW-08 MW-09 MW-10 MW-11 MW-12 MW-13 MW-14 MW-15 MW-16 MW-17 MW-18 MW-19 MW-20 MW-21 OW-01 OW-02 OW-07

CAV-OW-07 OW-08 OW-09 OW-11

P-04 El-01 El-02 El-03 El-04 El-05 El-06 E2-01 E2-02 E2-03 E2-04 E2-05 E2-06 E3-01 E3-02 E3-03 E3-04 E3-05 E3-06 E3-07

Relative Depth

S S

I

I

s ?

D D D S? I?

S S & I S & I

s S & l S & l

Sample Date

05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03 05/22/03

Benzene in mg/L 0.00844 0.0186

<0.00012 0.034

<0.00012 <0.00012 <0.00012 <0.00012

0.386 0.224 0.26 0.524 0.0784

<0.00012 <0.00012 <0.00012

0.018 <0.00012 <0.00012 <0.00012 <0.00012 <0.00012 <0.00012 <0.00012 <0.00012 <0.00012 <0.00012 <0.00012 <0.00012

0.0261 0.0143 0.0515 0.0029

<0.00012 <0.00012 0.00578 0.0578 0.0147 0.00395 0.0761 0.0251 0.0167 0.0052

<0.00012 <0.00012 0.00439

<0.00012 <0.00012

Total VOCs in mg/L 0.03529 0.12763

ND 0.36433 0.03537

ND ND ND

1.4368 1.73895 0.93253 1.2905 0.7205

ND 0.00415

ND 0.44951

ND ND ND ND ND ND ND ND ND

0.00312 ND ND

0.3917 0.29431 0.3795 0.09089 0.0103

0.02333 0.01266 0.28362 0.11537 0.08773 0.45561 0.25937 0.0541 1.0452

ND ND

0.07571 ND ND

Total SVOCs in mg/L

0.11 1.6485

ND 14.3794 1.2065 0.1539 0.0704 0.0403 27.7611 25.6352 9.6934 88.223

26.2128 ND

0.3332 ND

15.59 ND ND ND ND ND ND ND ND ND ND ND ND

37.9808 4.0981 8.0498 1.0258 0.2241 0.0141 0.1422 3.7929 0.7228 3.7413 13.8104 6.6957 0.5102 0.0838

ND 0.0294 0.8675 0.4332 0.2816

S = Shallow Sand, I = Interbedded Zone, D = Deep

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TABLE 4 Concentration Ranges for COCs

Class

VOCs

Semivolatiles

COC

Benzene

Ethylbenzene

Toluene

Total Xylenes)

Acenaphthene

Acenaphthylene

Anthracene

Benzo(a)anthracene

Benzo(b)fluoranthene

Benzo(k)fluoranthene

Benzo(ghi)perylene

Benzo(a)pyrene

Chrysene

Dibenzo(a,h)anthracene

Fluoranthene

Fluorene

2-Methylnaphthalene

1 -Methylnaphthalene

Naphthalene

Phenanthrene

Pyrene

Indeno(l,2,3-cd) pyrene

Range in ug/L (ppb)Class

<5

<5

<5

<5

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

760

210

740

700

2400

79

580

580

170

140

36

140

390

7J

760

910

2,800

940

26,000

430

90

56

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TABLE 4 (Cont'd) Concentration Ranges for COCs

Class

Inorganics

COC

Nitrate (previously reported as nitrogen'?? Nitrate/Mtrite)

Sulfate

Alkalinity

Ammonia

Total Organic Carbon (TOC)

Chemical Oxygen Demand (COD)

Biological Oxygen Demand (BOD)

Range in mg/L (ppm)

0.11

0.56

7.9

132

unknown

unknown

unknown

<10

<3

759

215

*** Previous values for nitrate are unknown with respect to representation as nitrogen or the ratio of nitrate to nitrite.

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TABLE 5 Method 8260 - Analytes, MQLs and LORPs

M E T H O D 8260C ANALYTES

Acetone (2-propanone)

Benzene Bromobenzene

Bromodichloromethane

Bromoform

Bromomethane

Butyl Cyclohexane Butylbenzene, n-

Butylbenzene, sec-

Butylbenzene, tert-

Carbon disulfide

Carbon tetrachloride

Chlorobenzene

Chlorobromomethane (bromochloromethane)

Chloroethane (ethyl chloride)

Chloroform

Chloromethane

Chlorotoluene, o-(2-chlorotoluene)

Chlorotoluene, p-(4-chlorotoluene)

Cumene (isopropylbenzene) Cyclohexane

Cymene (isopropyltoluene)

Dibromo-3-chloroprop ane, 1,2-Dibromochloromethane (chlorodibromomethan

e) Dichlorobutane, 1,4-

CAS

67-64-1

71-43-2

108-86-1 75-27-4

75-25-2

74-83-9

104-51-8

135-98-8

98-06-6 75-15-0

56-23-5

108-90-7

74-97-5

75-00-3

67-66-3

74-87-3

95-49-8

106-43-4

98-82-8

110-82-7 99-87-6

96-12-8

124-48-1

110-56-5

T R R P PCLs F O R RESIDENTLVL GROUNDWATER

TRRP ASSESSMENT

LEVEL (AL) (LORP)

GWGWIng (mg/L)

..-: •: .2.4E-H)0 •; • •:V-''-5.0E-O3: :• "

•.. 4.9E:OI. ; ••

'";'•; VI.OETOI ",•••;•

• :,1.0E-01 •.:"'•"

=:. 3.4E-02: .•

•= 9.8E-01 ••-

•:."-9.8E.0I . ' • • ' -•M- ;<>-8E-01 . :•

•f: :^-s:4E+oo--?' •:--e5.0E.03 >. :•.

. Ti^^.OEJQlV''-

• ' : •.9,8E+Oo:;'*^

:H;r>"' i.OK-bi • •••:

.:- .î7.0te^2 '-jv:4.?E-0l. XK

' • : ••: t y , . " s r . • , ' ;••!

%Oy:2E-r02 ^ '•• ;:•;. ^2:4E^0'.^.:::^

Amf^ .A}:m^.A

^^GWcu„3 (mg/L)

2.4E+02

5.0E-01

4.9E+01

1.OE+01

1.OE+01

3.4E+00

9.8E+01

9.8E+01

9.8E+01

2.4E+02

5.0E-01

1.OE+01

9.8E+01

9.8E+02

1.OE+01

7.0E+00

4.9E+01

4.9E+01

2.4E+02

1.2E+04

2.4E+02

2.0E-02

1.OE+01

AirGWInh-V

0.5 acre source (mg/L) 2.5E+05

5.1E+01

2.6E+01 —

5.1E+03

4.6E+01

3.6E+03

3.9E+03

2.5E+03

4.9E+03

7.9E+00

1.4E+03

2.2E+03

1.2E+05

2.0E+01

3.6E+01

7.9E+00

4.4E+03

9.9E-02

4.6E+03

3.2E+01

AirGWInh-V

30 acre source (mg/L) 3.3E+04

6.6E+00

3.4E+00 —

6.7E+02

6.0E+00

4.7E+02

5.0E+02

3.2E+02

6.3E+02

l.OE+00

1.8E+02

2.9E+02

1.5E+04

2.6E+00

4.7E+00 —

l.OE+00

5.7E+02

1.3E-02

5.9E+02

4.1E+00

N:\Novell Data\COMMON\COMMON\CLIENT\TCEQ\Norlh Cavalcade Superfimd SiteM00376 (RIRS 9-03 lo 8-04)\Field Sampling Plan\Table 5 8260 and 82 70 COCs.doc Page I of 5

020167

TABLE 5 (Cont'd) Method 8260 - Analytes, MQLs and LORPs

A R C H E M STATE SUPERFUND SITE

M E T H O D 8260C ANALYTES

[Dichlorodifluoromethane

JDichloroethane, 1,1-

iDichloroethane, 1,2-

IDichloroethylene, 1,1-

pichloroethylene, |cis-l,2-

JDichloroethylene, (trans-1,2

Dichloropropane, 1,2-

lOichloropropane, 1,3-

JDichloropropane, 2,2-

JDichloropropene, 1,1-

IDichloropropene, 1,3-|(mixed isomers)

[Dichloropropene, cis 1,3

JEthanol [Ethyl benzene

Ethylene dibromide Kdibromoethane, 1,2-)

Hexachlorobutadiene

jHexanone, 2-

iMethanol

Methyl acetate (acetic (acid, methyl ester)

JMethyl cyclohexane

[Methyl ethyl ketone (2-butanone)

Methyl isobutyl ketone |(4-methyl-2-pentanone)

Methylene bromide |(dibromomethane)

[Methylene chloride [(dichloromethane)

MTBE (methyl tert-butyl etfier)2ndMCL=1.5E-02

[Naphthalene

[Propylbenzene, n-

CAS

75-71-8

75-34-3

107-06-2

75-35-4

156-59-2

156-60-5

78-87-5

142-28-9

594-20-7

563-58-6

542-75-6

10061-01-5

64-17-5

100-41-4

106-93-4

,87-68-3

591-78-6

67-56-1 79-20-9

108-87-2

78-93-3

108-10-1

74-95-3

75-09-2

1634-04-4

91-20-3

1 103-65-1

M Q L Lit

Water (mg/L)

0.001

0.0004

0.0006

0.0012

0.0012

0.001

0.0004

0.0035

0.001

0.001

0.001

0.0006

0.0011

0.005

0.01

0.01

0.005

0.005

0.0003

0.01

0.0004

1 0.0004

TRRP PCLs FOR RESIDENTIAL GROUNDWATER

. . ^ • J :TRRP-- . " ;'. viSSESSMENT.

LEVEL(ALJ 1

:.;:--(tQRP):-.-n . . G W G W I n g .: .' -..(ine/U - i ••. ^ . gE+oo- / - . '

•••••'; 2 . 4 E + 0 0 ' "

• •• 5.bE.03 • • • ' . '

•••• ••. 7;0E-03 ;•.••' •••

; ' : ' " ' ;74E-02; . ' .

,.•• : ' i i .oE.oi "•••

•" ; :5.0E-03 • =•;;.

.•=.39.1E^03U."'.-

..:•:.•..: i .3E-b2 ' •:•••:

:.'?9:t£^03:.- .

W::-!-^-j!^'''-Â

- ' . • • \L7E.03 . - . . •

8.1 E-01

•-• ZOE-Ol •

: •;"y'^p%05;'";;,...

•V- •:-,'4Ê-03 • . . • "

.••:.-.;ti5Et-00 • , • ; . ; .

1.2E+01

r*'::;;'iiiE*02;^:.:.;; A ;.::i:5E+qiv;;^-

• . . ? , • • • • ; - • > : = . ' 4 • ; : •

•;•;•• f^ '^ '^ ' i - =:

v-v:=5X!ifc03':.-:.- .

: '";; j2,4E-ai.-;• ' . ;

• .; " .••.49E-01 ^ .

[ • • --g.sE-oi.. .'••

«^GWa..3 (mg/L)

4.9E+02

2.4E+02

5.0E-01

7.0E-01

7.0E+00

1.OE+01

5.0E-01

9.1 E-01

1.3E+00

9.1 E-01

9.1 E-01

1.7E-01

8.1E+04

7.0E+01

5.0E-03

4.9E-01

1.5E+02

1.2E+03 9.8E+01

1.2E+04

1.5E+03

2.0E+02

1.2E+01

5.0E-01

2.4E+01

4.9E+01

9.8E+01

AirGWInh-V 0.5 acre source (mg/L)

3.0E+03

7.2E+03 3.3E+01

2.3E+00

1.6E+04

l.OE+04

1.2E+02

2.5E+02

5.7E+01

1.9E+01

1.8E+02

2.3E+02

1.6E+04

1.5E+01

8.9E+00

1.5E+03

1.3E+05

7.6E+02

5.4E+05

4.6E+04

7.9E+02

1.3E+03

2.3E+04

3.2E+02

6.0E+03

AlrGWInh-V 30 acre source (mg/L)

3.8E+02

9.3E+02

4.3E+00

3.0E-01

2.1E+03

1.3E+03

1.5E+01

3.3E+01

7.3E+00

2.5E+00

2.3E+01

3.0E+01

2.0E+03

2.0E+00

l.lE+00

2.0E+02

1.7E+04

9.8E+01

7.0E+04

5.9E+03

1.OE+02

1.6E+02

3.0E+03

4.1E+01

- 7.8E+02 I

N:\Novell Dala\COMMOmCOMMON\CUENT\TCEQ\Nortli Cavalcade Superfimd SiteM00376 (RIRS 9-03 to 8-04)\Field Sampling PlanXTable 5 8260and8270COCs.doc Page 2 of 5

020168


ARCHEM STATE SUPERFUND SITE

METHOD 8260C ANALYTES

Trichlorobenzene, 1,2,3-Trichlorobenzene, 1,2,4-Trichloroethane, 1,1,1-

Trichloroethane, 1,1,2-

Trichloroethylene

Trichiorofluoromethane Trichloropropane, 1,2,3-

Trimethylbenzene, 1,2,4-

Trimethylbenzene, 1,3,5-

Vinyl chloride

Xylene, m-Xylene, o-

Xylene, p-

Xylenes

CAS 87-61-6 120-82-1 71-55-6

79-01-6 75-69-4

96-18-4

95-63-6

75-01-4

108-38-3 95-47-6

106-42-3

1330-20-7

MQL Lit

Water (mg/L) 0.0003 0.0004 0.0008

0.001

0.01 0.0032

0.0013

0.0011

0.0005

1RRP PCLs FOR RESIDENTIAL GROUNDWATER

TUitP ASSESSMENT

LEVEL (AL) (LORP)

GWGWIng

(nie.1.) 7 3I:-02 7 or-i)2

2or-ui

5 OF-03

7.31! r 00 1 3F-04

12 r -00

2 0n-03'

i.or-'Oi 1 or-roi

. . i.or.-oi l.OPfOl

GWciass 3 (mg/L) 7.3E+00 7.0E+00 2.0E+01

5.0E-01 7.3E+02 1.3E-02

1.2E+02

2.0E-01 1.OE+03

1.OE+03

1.OE+03

1.OE+03

AirGWInh-V 0.5 acre source (mg/L) 2.7E+03 1.6E+04

7.9E+03

1.6E+02

4.1E+03 6.5E+03

1.6E+02

3.6E+00 7.5E+03 5.4E+05

6.7E+03

7.3E+03

AirGWInh-V 30 acre source (mg/L)

3.5E+02

2.0E+03

1.OE+03

2.1E+01

5.3E+02 8.4E+02 2.1E+01

4.7E-01

9.7E+02 7.0E+04

8.6E+02

9.4E+02

N:\NovellData\COMMON\COMMON\CLIENT\TCEQ\North Cavalcade Superfimd SiteM00376 (RIRS 9-03 to 8-04)\Field Sampling Plan\Table 5 8260 and 8270 COCs.doc Page 3 of 5

020169



M E T H O D 8270 ANALYTES

Acenaphthene Acenaphthylene Acetophenone Anthracene Atrazine Benz-a-anthracene Benzaldehyde Benzo-a-pyrene Benzo-b-fluoranthene

Benzo-g,h,i-perylene Benzoic acid Benzo-k-fluoranthene Benzyl alcohol ; Biphenyl, 1,1-Bis (2-chloroethoxy) methane Bis (2-chloroethyl) ether Bis (2-chloroisopropyl) ether Bis (2-ethyl-hexyl) phthalate Bromophenyl phenylether, 4-Butyl benzyl phthalate Chlorophenyl phenylether, 4-Chrysene Cresol, m- (3-methylphenol) Cresol, 0- (2-methylphenol) Cresol, p- (4-methylphenol) Dibenz-a,h-anthracene Dibenzofuran Dichlorobenzene, 1,2-Dichlorobenzene, 1,3-Dichlorobenzene, 1,4-Dichlorobenzidine, 3,3-Dichlorophenol, 2,4-Diethyl phthalate Dimethyl phenol, 2,4-Dimethylphthalate Di-n-butyl phthalate

CAS

83-32-9 208-96-8 98-86-2 120-12-7 1912-24-9 56-55-3 100-52-7 50-32-8 205-99-2

191-24-2 65-85-0 207-08-9 100-51-6 92-52-4 111-91-1 111-44-4 108-60-1 117-81-7 101-55-3 85-68-7

7005-72-3 218-01-9 108-39-4 95-48-7 106-44-5 53-70-3 132-64-9 95-50-1 541-73-1 106-46-7 91-94-1 120-83-2 84-66-2 105-67-9 131-11-3 84-74-2

T R R P PCLs FOR RESIDENTIAL GROUNDWATER

• . . . . • ! • . : • , ! • . . . .

. • i r - . . ' • •• •• • • ' • • • ' .

•••ASSESSMiENT.:'

.;;-LEvi;L'(ALy:;;'

""•Gfcmngl:

•; . •• l iSE+OOy.-!; .

1 . 5 E + 0 0 ' •.

• ' ' • 2 : 4 C + o o ^ - ' •

"•••• 'TiSE+OOr- •

.'•.:• -.iioE-os"' • .••

-h:-.-l-.3E-03 •..«;5-

;••;.• 2 ; 4 E + 0 . 0 ' : •-.

•'. '"- 2 i ;0Ei04- •-=•

'ift!.:i7.-3EV0l3?f; •!•

••/:•:• 9 .8E- J01 - ! v -

- ^ ' H ^ i ^ ' v . •

''V'i':iEm''. • >=••. T :2E+00. -> -••

•,-•:•'-. ;"4.iF.-.06. :.,••••:•

- •'• . % : 3 E - M r ::i-^

• • • - T ;3E^02: - : - .

•'•-- ^-fcOE-oa•*:."•

•••..--!•• 6 . 1 E i 0 5 4 « • •:•:

: " ' . • •4 ' .9E4M-V-.

• ' • i ' . - .& iEros •*•:••:. i r ^ ^ f V K S E ^ l ^ v i ' i V

«='3W'l^^!0d**^ •-•' .;;i;;?:uffiE*oo'-:«

•iwniErOr:-"-'^ ^^•^ynQ-E^M....' v:

.\:î«i.9i8E^2--=--i-•••aK!j-6.'OE.oi-^'-.;,;^

; '•^•-7;3I?-(î!i;^^•••;

••i''*-.7:5E-02:::"-/=.. ' • ' ^ : ; . - 2 J G E ^ 0 3 ' ^ ' ^

• ••• n.:7;3E;0Z'-.-^ ^:

-:'i:r2;0E+0bH:. V .••.f4.9Er01.'-¥.:: ••-='-2.01it01:.'--'M.- 2:4h't00":- .- •

•^^GWc,.ss3 (mg/L)

1.5E+02 1.5E+02 2.4E+02 7.3E+02 3.0E-01 1.3E-01 2.4E+02 2.0E-02 1.3E-01

7.3E+01 9.8E+03 1.3E+00 7.3E+02 1.2E+02 4.1E-04 8.3E-02 1.3E+00 6.0E-01 6.1E-03 4.9E+02 6.1E-03 1.3E+01 1.2E+02 1.2E+02 1.2E+01 2.0E-02 9.8E+00 6.0E+01 7.3E+01 7.5E+00 2.0E-01 7.3E+00 2.0E+03 4.9E+01 2.0E+03 2.4E+02


—

1.4E+05 —

1.8E+05 2.0E+03 2.9E+00 3.9E+02 1.6E+03

—

l.OE+05 9.7E+04 9.1E+05 2.0E+02

9.3E+01 8.7E+02

—

1.6E+00 1.2E+05 1.2E+00 5.8E+05 1.2E+05 l.OE+05 1.2E+05 1.OE+03

—

5.8E+03 1.9E+02 2.6E+04

—

5.4E+05 1.4E+05 1.6E+05 l.lE+05 7.2E+04


— —

1.8E+04 —

2.4E+04 2.6E+02 3.7E-01 5.0E+01 2.1E+02

— 1.3E+04 1.3E+04 1.2E+05 2.6E+01

1.2E+01 l.lE+02

—

2.0E-01 1.6E+04 1.6E-01 7.5E+04 1.6E+04 1.3E+04 1.5E+04 1.3E+02

—

7.5E+02 2.5E+01 3.4E+03

—

7.0E+04 1.8E+04 2.1E+04 1.4E+04 9.3E+03

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020170



M E T H O D 8270 ANALYTES

Dinitro-2-methylphenol, 4,6-(dinitro-o-cresol, 4, 6-) Dinitrophenol, 2,4-Dinitrotoluene, 2,4-Dinitrotoluene, 2,6-Di-n-octyl phthalate Fluoranthene Fluorene Hexachlorbutadiene Hexachlorobenzene Hexachlorocyciopentadiene Hexachloroethane Nitroaniline, 3-Nitroaniline, 4-Nitrobenzene Nitrophenol, 2-Nitrophenol, 4-Nitrosodi-n-propylamine, n-Nitrosodiphenylamine, n-Pentachlorophenol Phenanthrene Phenol Pyrene Trichlorophenol, 2,4,5-Trichlorophenol, 2,4,6-Trimethylbenzene, 1,3,5-

CAS

534-52-1

51-28-5 121-14-2 606-20-2 117-84-0 206-44-0

118-74-1 77-47-4 67-72-1 99-09-2 100-01-6 98-95-3 88-75-5 100-02-7 621-64-7

87-86-5 85-01-8 108-95-2 129-00-0 95-95-4 88-06-2 108-67-8

T R R P PCLs F O R RESIDENTIAL GROUNDWATER

^ ? - - • • • . • • » - : - - " v . :

..•.• = :-TRRP^4'"-•jiisSESJ^MENlV

T-'-dibRP):.:;;.-,.r.G5'iGWlng-!.-V:

•;•.., OflS'L)..-?.,-.!:.

- ' " ' . . . ' ' . . • • • • ' : ' -

T'.^'4.9E-02."'"-.'"

"il "I'DE-OS•••'"• . •

•:> • :h3E-03-' '•-••'••

.:•-•• 4 : 9 E ^ o r -

-••• 9.8E-01 • •"=•

P - V : • : • - • . = ..'•

. ^ . . - ' h . . . - , • •.

:.-i. :MV0E.03' • •:;

yi'-.ir5:OE.02;" ;.r

•;5*v^5tE^2=r^-^v

'.*?VH?t:3E-0S;S?:^v

:"".'-2;4&02-w

.•'.••'•-••1.2E.02" ..•

•.•'-•.: 4.9E-02;.;^'-.-

WH: ^4.9E-02'=; t'iv

.i:.-:-l.-3E-04v'.:•••

" : . • • . . ' - ; • • ! : > . • • ; • • •

:•'«•• "iVOE-oa'; ;•-••• •• :»•: :"?;3B-0l.n;:=-- i

V-::BE+tfH-' . , i i :

-S>-Vî7:3E-fli-v::".-

.•.thSv-i2;4E+00'"''--a ^••'=!«;3E.02:.v;:^

. ; : i ; : , ; . i .2Ej:pgv.: . :

"^GWciass3 (mg/L)

4.9E+00

4.9E+00 1.3E-01 1.3E-01 4.9E+01 9.8E+01

l.OE-01 5.0E+00 2.4E+00 7.3E-01 2.4E+00 1.2E+00 4.9E+00 4.9E+00 1.3E-02

l.OE-01 7.3E+01 1.5E+03 7.3E+01 2.4E+02 8.3E+00 1.2E+02


8.4E+03

—

1.2E+03 3.1E+03

— —

5.7E+00 1.9E+00 1.4E+03 7.1E+04 7.1E+04 6.2E+03 6.7E+04 2.4E+04

—

1.3E+04 —

2.8E+05 —

4.5E+05 4.9E+04 1.3E+02


l.lE+03

—

1.6E+02 4.1E+02

— —

7.4E-01 2.5E-01 1.8E+02 9.2E+03 9.3E+03 8.0E+02 8.7E+03 3.1E+03

—

1.7E+03 —

3.6E+04 —

5.9E+04 6.4E+03 1.6E+01

N:\NoveU Data\COMMON\COMMON\CUEm\TCEQ}North Cavalcade SuperfimdSiteM00376 (RIRS 9-03 to 8-04)\Field Sampling Plan\Table 5 8260 and 8270 COCs.doc Page 5 of 5

020171

Table 6 MNA Parameters

Parameter

Dissolved Oxygen

Oxidation/Reduction ' , potential

pH

Nitrate ag nitrogen

Nitrogen

(nitrato/nitrate)Nitrite as Nitrogen

Manganese

Iron (total)

hon (ferrous)

Sulfate

1 Sulfide

Methane

Alkalinity

Ammonia

Total Organic Carbon (TOC)

Chemical Oxygen Demand (COD)

Biological Oxygen Demand (BOD)

PLFA Biomass Content

Field Method

X

X

X

Hach Test Kit IR-18C

Laboratory Method

EPA Method 300

EPA Method 300

EPA Method 6010

EPA Method 6010

EPA Method 300

EPA Method 376.1

RSK-175

EPA Method 310.1

EPA Method 350.2

EPA Method 415.1

EPA Method 410.1

EPA Method 405.1

X

020172

TABLE 7 SOPs Utilized

Used SOP Title ? #

1.1 INITIAL SITE RECONNAISSANCE 1.2 (Site) PREPARATION AND CONTROL

^ 1.3 SITE RESTORATION ^ 1.4 MANAGEMENT OF INVESTIGATIVE DERIVED WASTE ^ 1.5 DECONTAMINATION

^ 2.1 LAND SURVEY 2.2 WATER USE SURVEY 2.3 RECEPTOR SURVEY 2.4 UTILITY SURVEY

•

•

• • •

•

• • •

•

5.1 5.2

='5.3 5.4 5.5 5.6

6.1 6.2 6.3 6.4 6.5

7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8

8.1 8.2 8.3 8.4 8.5

9.1 9.2 9.3 9.4

3.0 GEOLOGICAL OBSERVATIONS

4.0 GEOTECHNICAL INVESTIGATION

HOLLOW STEM BOREHOLE ADVANCEMENT SOLID STEM BOREHOLE ADVANCEMENT MUD ROTARY BOREHOLE ADVANCEMENT AIR ROTARY BOREHOLE ADVANCEMENT MONITORING WELL INSTALLATION AND COMPLETION MONITORING WELL DEVELOPMENT/ABANDONMENT

DOCUMENTATION HOMOGENIZATION OF SOIL SAMPLES COLLECTION OF VOC SAMPLES SAMPLE HANDLING AND CONTROL COLLECTION OF QA/QC SAMPLES

WATER LEVEUSEDIMENT MEASUREMENT PURGING A MONITORING WELL WITH A BAILER PURGING A MONITORING WELL WITH A PUMP MICRO PURGING A MONITORING WELL MEASUREMENT OF FIELD PARAMETERS GROUNDWATER SAMPLING USING A BAILER GROUNDWATER SAMPLING USING A PUMP GROUNDWATER SAMPLING USING A LOW-FLOW TECHNIQUES

SURFACE WATER SAMPLING USING THE DIRECT METHOD SURFACE WATER SAMPLING USING A KEMMERER BOTTLE SURFACE WATER SAMPLING USING A DIP SAMPLER SURFACE WATER SAMPLING USING A PUMP SURFACE WATER SAMPLING USING A BOMB SAMPLER

SEDIMENT SAMPLING USING A TROWEL SEDIMENT SAMPLING USING A BUCKET AUGER SEDIMENT SAMPLING USING A DREDGE SEDIMENT SAMPLING USING A PUSH CORE

020173

TABLE 7 (Cont'd) SOPs Utilized

Used SOP Title ? . #

10.1 SOIL SAMPLING USING A TROWEL 10.2 SOIL SAMPLING USING A SPLIT BARREL SAMPLER 10.3 SOIL SAMPLING USING A HAND AUGER 10.4 SOIL SAMPLING USING DIRECT PUSH

11.1 SOURCE SAMPLING OF A HOMOGENOUS LIQUID 11.2 SOURCE SAMPLING OF A HETEROGENEOUS OR STRATIFIED LIQUID 11.3 SOURCE SAMPLING OF A HOMOGENOUS SOLID 11.4 SOURCE SAMPLING OF A HETEROGENEOUS OR STRATIFIED SOLID

12.1 ASBESTOS AIR SAMPLING 12.2 ASBESTOS SOLIDS SAMPLING

13.1 SOIL GAS WELL INSTALLATION USING A SLAM BAR 13.2 SOIL GAS WELL INSTALLATION USING A DEMOLITION HAMMER 13.3 SOIL GAS POINT ESTSTALLATION USING A GEOPROBETM 13.4 SOIL GAS SAMPLING USING A TEDLAR BAG 13.5 SOIL GAS SAMPLING USING A TENAX TUBE 13.6 SOIL GAS SAMPLING USING A SUMMA CANISTER

14.1 AIR SAMPLING AND MONITORING DESIGN 14.2 AIR SAMPLING USING A HIGH VOLUME SAMPLER 14.3 AIR SAMPLING USING A PMIO SAMPLER 14.4 AIR SAMPLING USING A PS-1 SAMPLER 14.5 AIR SAMPLING USING A SUMMA CANISTER FOR VOC SAMPLING 14.6 REAL-TIME AIR MONITORING 14.7 COLLECTION OF METEOROLOGIC DATA

15.1 CONDUCTING A MAGNETOMETRY SURVEY 15.2 CONDUCTING AN ELECTROMAGNETIC SURVEY 15.3 CONDUCTING A RESISTIVITY SURVEY 15.4 CONDUCTING A GROUND PENETRATING RADAR SURVEY 15.5 CONDUCTING A SEISMIC SURVEY 15.6 LOGGING A BOREHOLE USING A SINGLE POINT RESISTIVITY TOOL 15.7 LOGGING A BOREHOLE USING ELECTRIC LOGS 15.8 LOGGING A BOREHOLE USING A NATURAL GAMMA TOOL 15.9 LOGGING A BOREHOLE USING A CALIBER TOOL

16.1 SLUG TEST 16.2 CONDUCTING A PUMP TEST 16.3 CONDUCTING A STEP-DRAWDOWN TEST

N:\NovellData\COMMON\COMMON\CLIEimTCEQWorth Cavalcade SuperfimdSiteM00376 (RIRS 9-03 to 8-04)\FieldSampling Plan\Table 7 SOPs Utilized.doc

020174

TABLE 8

Estimated Sampling and Analyses

Sample Description

Well Number Sample Number

Media Water

Sample Collection

Method Groundwater

Low Flow

Sample Analyses

8260 8270 (VOCs) (SVs)

Aqueous Aqueous

MNA Parameters Field Methods

DO, Ox/Red, pH, Mg, Fe, sulfate sulfide, PLFA Biomass Content

Laboratory Methods nitrate as nitrogen, methane, alkalinity,

ammonia, TOC. COD, BOD

MW-02

MW-03 MW-05

MW-07 MW-08 MW-10 MW-13 MW-14

MW-15

MW-16 _MW-17

MW-18 MW-19

MW-20 OW-01

OW-02

,OW-07

CAV-OW-07

OW-08 OW-09 OW-11

_P-04

El-01 El-03

El-06 E3-01

E3-02 E3-03 E3-04

E3-05 E3-06 E3-07

'm-m.s.....x..i^^ Matrix Spike (1 in 20/matnx) Matrix Spike Dup (1 In 20/matrix) Equipment Blanks (1/equlpment type/day) Trip Blanks (1 in 20/matrix for VOCs) Field Duplicates (frequency of 10%) Field Blanks (1 in 20/matrix for VOCs)

Estimated Batches for DUR Estimated Batches for DV TOTAL BID ITEMS

JM.,: . ,. ' i f ^ ' i . i | 2 ^ 2 2 2 2 3

-13

2

™.,J2 2 2 2

3

41

2

^32'..; <-U.vi.'Ek32

32 32 43 41

32

32

32

32

N:\\TCEQ\North Cavalcade\100736\Fleld Sampling PlanUable 8 Estimated sampling and analyses.xls

020175

FIGURES

N:\NovellData\COMMON\COMMON\CLIEN7\TCEQ\North Cavalcade Superfund SiteM 00376 (RIRS 9-03 to 8-04)\Field Sampling Plans\Field Sampling Plan Waler\FSPforSamplingandGauging.doc

020176

i

o «

I I

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T E X A S

sr BELT J \ ,;, T^=*r—y-iC~!r?j-r--=^''^"

r ^

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REFERENCE:

U.S.G.S. 7.5 MINUTE TOPOGRAPHIC MAP OF SEHEGAST, TEXAS 1982

Shaw

TEXAS COMMISSION ON ENVIRONMENTAL QUALITY

SUPERFUND CLEANUP SECTION 12100 PARK 35 CIRCLE

AUSTIN, TEXAS 78753

FIGURE 1

VICINITY MAP

NORTH CAVALCADE SITE HOUSTON, TEXAS

020177

LEGEND:

9 MONITOR WELL

- ! ^ EXTRACTION WELL

S C A L E

100 200 FEET

ShawE&Unc.



AUSTIN, TEXAS 78753

FIGURE 2

SITE MAP

NORTH CAVALCADE SUPERFUND SITE HOUSTON. TEXAS

020178

CM <

I

ro O O

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in

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TADinn;

SljlitfLlQiirilE

a«ue>LETiMe

ANpiLvmnEmiSiS?H]i MICL

.GRAB



AUSTIN, TEXAS 78753

FIGURE 3 EXAMPLE SAMPLE LABEL

NORTH CAVALCADE SITE HOUSTON, TEXAS

020179

PLOT DATE: 11 /4 /03

FORMAT REVISION 3 / 2 5 / 9 9

IMAGE

COC

X-REF OFFICE

Houston. Texas

DRAWN BY

D. DAY 11/4/03 CHECKED BY APPROVED BY

I DRAWING i n n - ^ 7 K A^l NUMBER 1 0 0 3 7 6 - A 3

Chain of GustmlyRi^cord I5UfiMKllutBoM,SuII*G06 • llM.Woodlaii^-nc 71380 i9St>W&,mi • rAX:C38i)390^2481 • wwmMmmi^tjeam

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b W l M l l i m d i f a M x n M p m t » * l p imr«Cqiq loco onNnalorand t a U h i ^

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s m M R o t l i i :

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.

ForUb Ui« Only

U b S a n ^ D

U b R W i i t i r

TEXAS COMMISSION ON

ENVIRONMENTAL QUALITY

SUPERFUND CLEANUP SECTION

12100 PARK 35 CIRCLE

AUSTIN. TEXAS 78753

FIGURE 4 EXAMPLE CHAIN-OF-CUSTODY

NORTH CAVALCADE SITE

HOUSTON. TEXAS

020180

APPENDIX A LABORATORY MQLs

N:\NovellData\COMMON\COMMON\CLIENT\TCEQ\North Cavalcade Superfund SiteM 00376 (RIRS 9-03 lo 8-04)\Field Sampling Plan\FSP for Sampling andGauging.doc

020181

iiiiiipffl 1544 Sawdust Road, Suite 505 The Woodlands, TX 77380

1 of 3

CLIENT NAME

PROJECT NAME

PROJECT NUMBER

DATE SAMPLED

SAMPLE MATRIX LIQOID

LABORATORY REPORT SEMIVOLATILE ORGANICS BY GC/MS

CLIENT SAMPLE ID

LAB SAMPLE ID

METHOD REFERENCE

DATE RECEIVED

PRINTED ON

Prep Blank

SVOB353

SW84S-a270C

10/29/2003 12:58

ANALYST : AKS DATE ANALYZED : 9/21/2003

DATE EXTRACTED : 09/15/03 DILOTION : 1

EXTRACT VOLUME :.l mL INSTRUMENT FILE sD6387.D

INSTRUMENT ID : D-5973 , SAMPLE VOLUME : 1000 mL

TIME ANALYZED : 20j25

PARAMETER 1,2,4-Trichlorobenzene

1,2-Dichlorobenzene

1,3-Dlchlorobenzene

1,4-Dichlorobenzene

2,2"' -oxybi s (l - Chloropropane)

2,4,5-Trichlorophenol

2,4,6-Trichlorophenol

2,4-Dichlorophenol

2,4-Dimethylphenol

2,4-Dlnltrophenol

2,4-DiniCrotoluene

2,6-Dini trotoluene

2-Chloronaphthalene

2-Chlorophenol

2-Methylnaphthalene

2-Methylphenol

2-Nitroaniline

2-Nltrophenol

3,3'-Dichlorobenzidine

3-Nitroaniline

4,6-Dinitro-2-methylphenol

4-Bromophenyl phenyl ether

4-Chloro-3-methylphenol

4-Chloroaniline

4-Chlorophenyl phenyl ether

4-Methylphenol

4-NitroaniHne

4-Nitrophenol

@ MDL 2.0

2.0

2.0

2.0

2.0

2.0

2.0

4.0

4.0

8.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

4.0

6.0

4.0

2.0

2.0

2.0

2.0

2.0

6.0

8.0

SQL 2.0

2.0

2.0

2.0

2.0

2.0

2.0

4.0

4.0

6.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

4.0

6.0

4.0

2.0

2.0

2.0

2.0

2.0

6.0

8.0

MQL 10

10

10

10

10

25

10

10

10

25

10

10

10

10

10

10

25

10

10

25

25

10

10

10

10

10

25

25

QUANTITATION LIMIT

10

10

10

10

10

25

^10

10

10

25

10

10

10

10

10

10

25

10

10

25

25

10

10

10

10

10

25

25

RESULTS <2.0

<:2.0

<2.0

<2.0

<2.0

<2.0

<2.0

<4.0

<4,0

<8.0

<2.0

<2.0

<2.0

<2.0

<:2.0

<2.0

<2.0

<2.0

<4.0

<6.0

<4.0

<2.0

<2.0

<2.0

<2.0

<2.0

<6.0

<:8.0

UNITS UG/L

US/L

UG/L

UG/L

ua/L UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

ua/L UG/L

UG/L

UQ/L

QUALIFIER U

U

U

U

U

U

u u u u u u u u u u u u u u a u o u u u u u

020182

;C0iiiiei||M 1544 Sawdust Road, Suite 505

The Woodlands, TX 77380

LABORATORY REPORT 2 of

SEMiVOUTILE ORGANICS BY GC^S

CLIENT HAME : CLIENT SAMPLE ID : Prep Blank

PROJECT NAME : LAB SAMPLE ID : SVOB353

PROJECT NUMBER ! METHOD REFERENCE : SW846-8270C

DATE SAMPLED ! DATE RECEIVED :

SAMPLE MATRIX : LIQUID PRINTED ON : 10/29/2003 12:58

PARAMETER MDL SQL MQL QUANTITATION RESULTS UNITS QUALIFIER

Acenaphthene

Acenaphthylene

Anthracene

Benzo(a)anthracene

Benzo(a)pyrene

Benzo(b)fluoranthene

Benzo(g,h,i)perylene

Benzo(k)fluoranthene

Benzoic acid

Benzyl alcohol

Bis(2-chloroethoxy)methane

Bis(2-chloroethyl)ether

Bis(2-ethylhexyl)phthalate

Butylbenzylphthalate

Carbazole

Chrysene

Di-n-butylphthalate

Di-n-octylphthalate

Dlbenzo(a,h)anthracene

Di benzofuran

Di ethylphthalate

Dimethylphthalate

Fluoranthene

Fluorene

Hexachlorobenzene

Hexachlorobutadiene

Hexachlorocyciopentadiene

Hexachloroethane

Indeno(1,2,3-c,d)pyrene

Isophorone

N-Nitroso-dl-n-propylamine

N-Nitrosodiphenylamine

Naphthalene

Nitrobenzene

Pentachlorophenol

2.0

2.0

2.0

2.0

2.0

2.0

4.0

2.0

4.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

4.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

8.0

2.0

4.0

2.0

2.0

2.0

2.0

2.0

4.0

2.0

2.0

2.0

2.0

2.0

2.0

4.0

2.0

4.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

4.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

8.0

2.0

4.0

2.0

2.0

2.0

2.0

2.0

4.0

10

10

10

10

10

10

10

10

25

25

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

25

10

10

10

10

10

10

10

10

25

25

10

10

10

10

10

10

10

10

10 10

10

10

10

10

10

10

10

10

10

10

10

10

"10

10

25

<2.0

<2.0

<2.0

<2,0

<2.0

<2.0

<;4.0

<2.0

<4.0

<2.0

<2.0

<2.0

<2.0

<2.0

<2.0

<2.0

<2.0

<2.0

<4.0

<2.0

<2.0

<2.0

<2.0

<2.0

<2.0

<2.0

<8.0

<2.0

<4.0

<2.0

<2.0

<2.0

<2.0

<2.0

<4.0

UG/L

UG/L

UG/L

UG/L

OG/L

OG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

ua/L UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

U

U

U

u u u u u u u u D

U

U

u u u u u u u u u u u u u u u u u u u u "

020183

^CEMiiifilll^ 1544 Sawdust Road, Suite 505


LABORATORY REPORT 3 of

CLIENT NAME

PROJECT NAME :

PROJECT NUMBER :

DATE SAMPLED :

SAMPLE MATRIX : LIQUID

PARAMETER

PhenEtnthrene

Phenol

Pyrene

SEMIVOLATILE ORGANICS BY GCMS

MDL SQL MQL

2.0

2.0

2.0

2.0

2.0

2.0

CLIENT SAMPLE ID : Prep Blank

LAB SAMPLE ID : SV0B353

METHOD REFERENCE : SW846-8270C

DATE RECEIVED :

PRINTED ON : 10/29/2003 12

QUANTITATION RESULTS UNITS t -rx'Tfn

10

10

10

10

10

10

<2.0

<2.0

<2.0

UG/L

UG/L

UG/L

QUALITY CONTROL DATA SURROGATE COMPOUND

2,4,6-Tribromophenol

2-Fluorobipheny1

2-Fluorophenol

Nitrobenzene-d5

Phenol-d5

Terphenyl-dl4

SPIKE ADDED 75 UG/L

50 UO/L

75 UG/L

50 UG/L

75 UG/L

50 UG/L

QC RECOVERY LIMITS

10 - 123

43 - 116

21 - 110

35 - 114

10 - 110

33 - 141

%RECOVERY

78

46

67

41

92

91

] I

:58

QUALIFIER

U

U

U

@ - Adjusted for DCS

020184

iCDIiiiMifl^^ 1544 Sawdust Road, Suite 505


LABORATORY REPORT 1 of 3

VOLATILES BY QC/MS

CLIENT NAME

PROJECT NAME

PROJECT NUMBER

DATE SAMPLED

SAMPLE MATRIX LIQUID

CLIENT SAMPLE ID

LAB SAMPLE ID

METHOD REFERENCE

DATE RECEIVED

PRINTED ON

Prep Blank

FVBLKK6

SW84e-8260B

10/29/2003 12:57

ANALYST : AJ DATE ANALYZED : 9/22/2003

DILtrriON ; 1 INSTRUMENT FILE : P1530.D

INSTRUMENT ID : F-5973 PURGE VOLUME : 20 mL

TIME ANALYZED ; 12:49

PARAMETER 1,1,1,2-Tetrachloroethane

1,1,1-Trichloroethane

1,1,2,2-Tetrachloroethane

1,1,2-Trichloroethane

1,1-Dichloroethane

1,1-Dichloroethene

1,1-Dichloropropene

1,2,3-Trichlorobenzene

1,2,3-Trichloropropane

1,2,4-Trichlorobenzene

1,2,4-Trimethylbenzene

1,2-Dibromo-3-chloropropane

1,2-Dibromoethane

1,2-Dichlorobenzene

1,2-Dichloroethane

1,2-Dichloropropane

1,3,5-Trimethylbenzene

1,3-Dichlorobenzene

1,3-Dichloropropane

1,4-Dichlorobenzene

1-Chlorohexane

2,2-Dichloropropane

2-Butanone

2-Chlorotoluene

2-Hexanone

4-Chlorotoluene

4-Methyl-2-pentanone

Acetone

Benzene

MDL 0.50

0.50

0.50

0.50

0.50

0.99

0.50

0.50

0.56

0.50

0.50

0.56

0.50

0.50

0.68

0.50

0.50

0.50

0.50

0.50

0.50

0.51

3.4

0.50

2.5

0.50

2.5

3.6

0.50

SQL 0.50

0.50

0.50

0.50

0.50

0.99

0.50

0.50

0.56

0.50

0.50

0.56

O.SO

0.50

0.68

0.50

0.50

0.50

0.50

0.50

0.50

0.51

3.4

0.50

2.5

0.50

2.5

3.6

O.SO

MQL 1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

5.0

1.0

5.0

1.0

5.0

5.0

1.0

QUANTITATION LIMIT 1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

5.0

1.0

5.0

1.0

5.0

5.0

1.0

RESULTS <0.50

<0.50

<0.S0

<0.50

<0.50

<0.99

<0.50

<0.50

<0.56

<0.50

<0.50

<0.56

<0.50

<0.50

<0.68

<0.50

<0.50

<0.50

<0.50

<0.50

<0.50

<0.51

<3.4

<0.50

<2.5

<0.50

<2.5

<3.6

<0.50

UNITS UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

DG/L

UQ/L

OQ/L

DG/L

UG/L

UG/L

UG/L

UG/L

UG/L

US/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

QUALIFIER U

u u u D

U

U

U

U

U

U

U

u u u u u u u u u u u u u u u u u

020185

ICffiiiiiffl 1544 Sawdust Road, Suite 505


LABORATORY REPORT 2 Of

VOLATILES BY GC/MS

CLIENT NAME :

PROJECT NAME :

PROJECT NUMBER :

DATE SAMPLED :

SAMPLE MATRIX : LIQUID

PARAMETER

Bromobenzene

Bromochloromethane

Bromodichloromethane

Bromoform

Bromomethane

Carbon tetrachloride

Chlorobenzene

Chloroethane

Chloroform

Chloromethane

cis-1,2-Dichloroethene

cis-1,3-Diohloropropene

Dibromochloromethane

Dibromomethane

Dichlorodifluoromethane

Ethylbenzene

Hexachlorobutadiene

Isopropylbenzene

Methyl tert-butyl ether

Methylene chloride

n-Butylbenzene

n-propylbenzene

Naphthalene

p-lBopropyltoluene

sec-Butylbenzene

Styrene

tert-Butylbenzene

Tetrachloroethene

Toluene

trans-1,2-Di chloroethene

trans-1,3-Di chloropropene

Trichloroethene

Trichiorofluoromethane

Vinyl chloride

Xylene (total)

MDL

0.50

0.69

0.50

0.50

0.59

0.50

0.50

0.94

0.50

0.50

0.53

0.50

0.50

0.50

0.50

0.50

O.SO

0.50

0.50

0.52

0.50

0.50

0.50

0.50

0.50

0.50

0.50

0.50

0.50

0.52

O.SO

0.50

0.50

0.50

0.50

SQL

0.50

0.69

0.50

0.50

0.59

0.50

0.50

0.94

0.50

0.50

0.53

0.50

0.50

0.50

0.50

0.50

0.50

0.50

0.50

0.52

0.50

0.50

0.50

0.50

0.50

0.50

0.50

0.50

0.50

0.52

0.50

0.50

0.50

0.50

0.50

MQL

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0 ,

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

CLIENT SAMPLE ID : Prep Blank

LAB SAMPLE ID : PVBLKK6

METHOD REFERENCE : SW846-8260B

DATE RECEIVED :

PRINTED ON : 10/29/2003 i:

QUANTITATION RESULTS UNITS

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1,0

1.0

1.0

1.0

1.0

1.0

1.0

<0.50

<0.69

<0.50

<0.50

<0.59

<0.50

<0.50

<0.94

<0.50

<0.50

<0.53

<0.50

<0.50

<0.50

<0.50

<0.50

<0.50

<0.50

<0.50

<0.52

<0.50

<0.50

<0.50

<0.50

<0.50

<0.50

<0.50

<0.50

i0,50

<p.52

<0.50

<0.50

<0.50

<:0.50

<0.50

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

ua/L UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

DG/L

DG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

UG/L

:57

QUALIFIER

U

U

U

U

U

U

U

U

U

U

U

U

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U

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U

u u u " D

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020186

^tSiiliffiilii 1544 Sawdust Road, Suite 505


LABORATORY REPORT 3 Of

CLIENT NAME

PROJECT NAME

PROJECT NUMBER

DATE SAMPLED

SAMPLE MATRIX LIQUID

VOLATILES BY GC/MS

CLIENT SAMPLE ID

LAB SAMPLE ID

METHOD REFERENCE

DATE RECEIVED

PRINTED ON

Prep Blank

FVBLKK6

SW846-8260B

10/29/2003 12:57

QUALITY CONTROL DATA SURROGATE CCMPOOND

4-Bromofluorobenzene

Dibromofluoromethane

Toluene-d8

1,2-Dichloroethane-d4

SPIKB ADDED

10 UG/L

10 UG/L

10 UG/L

10 UG/L

QC RECOVERY LIMITS 75 - 125

75 - 131

68 - 125

62 - 139

ftRECbVERY 1

93

95

101

96

@ = Adjusted for DCS

020187

APPENDIX B TCEQ STANDARD OPERATING PROCEDURES (SOPs)

N:\NovellDala\COMMON\COMMON\CUENT\TCEQ\Nortli CavalcadeSuperfundSileM00376 (RIRS 9-03 lo 8-04)\FieldSamplingPlan\FSPfor Sampling andGauging.doc

020188

5 ^ STANDARD OPERATING PROCEDURE NO. 13 SITE RESTORATION

SOP#: 1.3 DATE: 4/25/2001

REVISIONS: 0 PAGE! of I

1.0 METHOD SUMMARY

This standard operation procedure (SOP) describes the steps necessary for site restoratioDL. Upon completion of field activities, tiie site should be repaired to its original condition when possible. All drums or waste containers should be staged in a designated staging area and all other waste should be removed. All borings should be backfilled.

2.0 EQUIPMENT/APPARATUS/REAGENTS

Varies depending on which of the following tasks are completed.

3.0 PROCEDURES

1. Minimize inqiacts to work sites and sampling locations, particularly those in or near sensitive environments, such as wetlands with the use of soil erosion fences or by diverting streams/brooks during woric operations.

2. Fill boreholes and pits, re-vegetate or erect erosion fences as necessary, re-establish streams, brooks, etc, as applicable.

3. Remove all sampling, decontamination equipmait, and other items introduced to the site upon completion of work.

4. Remove all drums, trash, and other waste upon completion of work at the site.

5. Transport decontamination and/or purge water and soil cuttiags to the designated locations.

4.0 CAUTIONS AND INTERFERENCES

This section is not applicable to this SOP.

TEXAS NATURAL BESOURCE CONSERVATION COMMISSION

020189

S0P#:1.4 STANDARD OPERATING PROCEDURE NO. 1.4 DATE: 4/25/2001

MANAGEMENT OF REVISION*: 0 INVESTIGATIVE DERIVED WASTE PAGE 1 of 4

1.0 METHOD SUMMARY

This standard operating procedure (SOP) provides standard operating procedures for managing inv^tigative derived waste (IDW) generated dining field activities. Materials which may become IDW include:

Persormel protective eqiiipment (PPE) including disposable coveralls, gloves, booties, respirator canisters, splash suits, etc.

• Disposable equipment including plastic ground and equipment covers, aluminum foil, conduit pipe, composite liquid waste samplers (COLIWASAs), disposable bailers, rope or twine. Teflon® tubing, broken or unused sample containers, sample container boxes, tape, etc.

Soil cuttings fix)m drilling or hand angering.

• Excess soil sample material.

Drilling mud or water used for water rotary drilling.

• Ground water obtained throu^ well development or well purging.

• Cleaning fluids such as spent solvents and washwater.

• Packing and shipping materials.

2.0 EQUrPMENT/APPARATUS/REAGENTS

2.1 Equipment List

• 55-gallon drums • Labels for drums • Wrenches for securing drum lids • Marking pens (for marking on labels and

on drums) • Luonber (for creating storage area)

3.0 PROCEDURES

Plastic sheeting (for storage area) Plywood (for storage area flooring) 5-gallon buckets Mmifests Drum log

Be sure to keep all hazardous waste separate fiôm non-hazardous waste. Label each container properly and keep a log (Appendix A) of all the drums or containers, stating their identification number and contents. Drill cuttings fi'om different holes can be put in the same drums provided they originate Scorn similar areas of the site (e.g., upgradient, background borings, etc.).

3.1 Management of Non-Hazardous IDW

1. If necessary, compact the waste into a reusable container, such as a 55-gallon drum to reduce the volume of non-hazardous waste.

2. If the waste is generated fi-om an active facility, seek permission firom the operator ofthe facihty to place file non-hazardous PPE, disposable equipment, and/or paper/cardboard wastes into the

TEXAS NATimALRESOiniCE CON»3(VATtOa< COMMIS^dN

..iJg'"

020190

SOP#: 1.4 STA3SDARD OPERATING PROCEDURE NO. 1.4 DATE: 4/25/2001

MANAGEMENT OF REVISION*: 0 INVESTIGATIVE DERIVED WASTE PAGE 2 of 4

facility dumpsters. These materials may also be taken to a nearby permitted landfill. On larger Studies, waste hauling services may be obtained and a dumpster located at the study site.

3. Dispose of non-hazardous IDW such as drill cuttings, pmrge or development water, decontamination washwat^, drilling muds, etc. m a unit with an enviroimiental permit such as a landfill or sanitary sewer. These materials must not be placed into dumpsters.

4. Seek permission to place these types of IDW into the facility treatment system if the facility is active.

3.2 Manêment of Hazardous IDW

1. Properly contain and label all suspected or identified hazardous wastes. Wastes should be stored in labeled 55-gallon drums at a segregated staging facility with a secondary containment stmcture.

2. Take care to keep non-hazardous materials segregated fiom hazardous waste contaminated materials. '

3. Review appropriate sample results to determine waste characterization and perform any specific analysis required by the permitted disposal facihty.

4. Hazardous wastes may be stored on site for a maximum of 90 days before they must be manifested and shipped to a permitted treatment or disposal facility.

5. Dispose of hazardous IDW as specified in the USEPA and TNRCC regulations. If appropriate, place these wastes in an active facihty waste treatment system.

6. Anticipate generation of hazardous IDW, if possible, to permit arrangements for proper containerization, labeling, transportation, and disposal/treatment in accordance with USEPA and TNRCC regulations.


1. All liquid and soil/sediment IDW must be containerized and analyzed before disposal.

2. The collection handling, and proposed disposal method must be specified in the site work plan.

TEXAS NATURALKESOCRCE CONSERVATION OOMMKSION

020191


MANAGEMENT OF ^ REVISION #: 0 INVESTIGATIVE DERIVED WASTE PAGE 3 of 4

APPENDIX A

TEXAS NATURAL RESOURCE CONSERVATION COMMISSION

020192

DRUMMED MATERIAL WORKSHEET

Project Name:

Site Address:

Project No.:

Project Manager:

Drum No. Boring No. Date Contents Sampfe ID Lab Results

••

\

Disposition

020193

STANDARD OPERATING PROCEDURE NO. 1.5 DECONTAMINATION

SOP#: 1.5 DATE: 11/14/2001

REVISION*: 0 PAGE 1 of 3

1.0 METHOD SUMMARY

This Standard operating procedure (SOP) provides a description ofthe methods used for preventing, minimizing, or limiting cross-contamination of samples due to inappropriate or inadequate equipment decontamination and to provide general guidelines for developing decontammation procedures for sampling equipment to be used during hazardous waste operations. This SOP does not address personnel decontamination.

Removing or neutralizing contaminants firom equipment minimizes the likelihood of sample cross contamination, reduces or eluninates transfer of contaminants to clean areas, and prevents the mixing of incompatible substances. Gross contamination can be removed by physical decontamination procedures. These abrasive and non-abrasive methods include the use of brushes, air and wet blasting, and high and low pressure water cleaning.


Appropriate personal protective equipment (PPE) Face shield (for hard hat) High pressure washer (if necessary) Fuel for high pressure washer 55-gallon drums Plywood Sump pump Landscape timbers, 4 x 4's, or 2 x 4's

Non-phosphate detergent Tap water Distilled or deionized water Long and short handled brushes Bottle brushes Drop cloth/plastic sheeting Papertowels Plastic or galvanized tubs or buckets Pressurized sprayers Aluminum foil Ziploc® bags Trash bags

3.0 PROCEDURES

3.1 Decontamination

The prime contractor shall describe all decontamination of drilling equipment, well construction materials, sampling equipment, tools, etc in the project work plan. All samples and equipment leaving the contaminated area of a site must be decontaminated to remove any contamination tlmt may have adhered to equipment. This includes casing, drill bits, auger flights, flie portions of drill rigs that stand above boreholes, sampling devices, and instruments, such as slugs and sounders. In addition, the contractor shall take care to prevent the sample from coming into contact with potentially contaminating substances, such as tape, oil, engine exhatist„ corroded surfaces, and dirt.

The following procedures shall be used to decontaminate large pieces of equipment, such as casings, auger flights, pipe and rods, and those portions ofthe drill rig that may stand directly over a boring or welllocation or that come into contact with casing, auger flights, pipe, or rods.

1. Prepare the decontamination zone in accordance with SOP 1.2.

2. Don appropriate PPE.


020194

SOP#: I J STANDARD OPERATING PROCEDURE NO. 1.5 DATE: 11/14/2001

DECONTAMINATION REVISION #: 0 PAGE 2 of 3

3. Deposit the contaminated equipment on the plastic drop cloth/sheet or in a container inside the CRZ.( ConTromiVx*"-tion ^^diAch'/rr^ 2o»\«. .

4. Place large pieces of equipment (e.g., auger flights) on sawhorses.

5. Use a high-pressure washer and a low-phosphate soap (e.g, Alconox) to remove encrusted material from grossly contaminated equipment. If necessary, use a brush to scrab the equipment until all visible dirt, grime, grease, oil, loose paint, rust flakes, etc., have berai removed.

6. Rinse all equipment with i)Otable water.

7. Store the equipment on sawhorses or wrapped in clean plastic sheeting.

8. Decontamination water should be collected and transferred to a 55-gallon drum at the end of the day or whenever significant quantities of water have accumulated. Drums of investigative derived waste (IDW) should be managed in accordance with SOP 1.4.

The following procedures shall be used to decontaminate small pieces of sampling equipment such as split spoons, bailers, trowels/spoons and bowls.

1. Prepare the decontamination zone in accordance witii SOP 1.2.

2. Don appropriate PPE.

3. Scmb the equipment with a solution of potable water and low-phosphate soap (e.g., Alconox).

4. If organic constituents are contaminants of concem, rinse the equipment with a pesticide-grade solvent, typically acetone. If acetone is a constituent of concem, substitute methanol as the rinse agent.

5. Rinse the equipment with copious quantities of distilled or deionized water.

6. Allow the equipment to air dry on a clean surface or rack elevated at least two feet above ground.

7. Wrap the sampling device in aluminum foil or place in Ziploc® bags prior to reuse.

At flie completion ofthe decontamination activities, aU fluids and sohd waste should be containerized and managed in accordance with SOP 1.4.

If a particular contaminant fraction is not present at the site, the ten (10) step decontamination procedure specified above may be modified for site specificity. For example, the solvent rinse may be eliminated if organics are not of concem at a site. Modifications to the standard procedure should be documented in the site specific work plan or subsequent report.


• The use of distilled/deionized water commonly available from conmaercial vendors is typically acceptable for decontamination of sampling equipment.

The use of an untreated potable water supply is not an acceptable substitote for tap water. Tap water may be used from any municipal or industrial water treatment system.


020195

SOP#: 1.5 STANDARD OPERATING PROCEDURE NO. 1.5 DATE: 11/14/2001

DECONTAMINATION REVISION #: 0 PAGE 3 of 3

If solvents are utilized in decontamination they raise health and safety, and waste disposal concems.

Damage can be incurred by solvent washing of con^lex and sophisticated sampling equipment.


. ' 020196

S0P#:2.1

STANDARD OPERATING PROCEDURE NO. 2.1 DATE: 11/29/2001 LAND SURVEY REVISIONS. 0

PAGE 1 of 2

1.0 METHOD SUMMARY

The objective of a standard operating procedure (SOP) is to provide guidance for conducting routine or repetitive land su rv^ .

Field measurements of topographic features, samples and sample points, monitoring weUs, sanqile traverses or water levels are fiequenfly required at any environmeiital investigation jsite. All work shoiild be done in accordance wifli the procedures provided in this SOP. AU locations whether subsurfece, surface, ecological, or any otiier area sanpled during field investigaticms should be depicted on an accurate drawing, topogr^hic or other standard m ^ , or be referenced in such a manner that the location(s) can be firmly established. Each field measurement made should be traceable to the p«cson(s) making the measurement


The following equipmait is typically used for conducting field surveys:

Electric Measuring Device • Global positioning satellite (GPS)

Theodolites and prisms equqnnent Total Stations • Hand held scale Tripod • Notebook Survey logbook Stakes, flagging, etc.

3.0 PROCEDURES

All property surveys should be performed in accordance witii good land surveying practices and should conform to all pertinent federal and state laws and regulations governing land surveying in flie area where the work is being accompUshed. The surveyor shall be licensed and registered in the state of Texas. A GPS can be used for surveyii^. The following guidelines shall apply wiiai conducting propaty surveys:

1. All surveying shall be conducted by a re^staed professional land surveyor.

2. All surveys shall be based on a measuring point tiiat is tied to the state plane system.

3. AU survQrs shall be third ordertTexas Board ofLand Surveyors, 1962).

4. An XY-coordinate system shaU be used to identify locations. The X-coordinate shaU be the east-west axis; tiie Y-coordinate shaU be flie norih-south axis. The reference point sbaU be the origin.

5. The surveyed control infonnation for aU data coUection points shaU be recorded and displayed in a table. The table shaU give the X and Y coordinates in state plane coordinate values, the ground elevation and the measuring point elevation if flie location is a ground water monitoring well. The elevation of aU newly instaUed weUs and piezometers shall be surveyed at flie water level measuring point (notoh) on the riser pipe.

6. Include flie elevation ofthe ground surfece in tiie survey.

TEXAS NATURAL RESOtRCE COlÎSERVATION COMMISiSION

020197

S0P#:2.1

STANDARD OPERATING PROCEDURE NO. 2.1 DATE: 11/29/2001 LAND SURVEY REVISIONS 0

PAGE 2 of 2

AU survQong locations of field activities shaU be measured by the hcensed land surveyor as the distance in feet from a reference location ttiat is tied to the State Plane system. The surveys shaU be in third order. AnXY-coordinate system shaU be used to identify locations. The X-coordinate shaU be flie east-west axis; the Y-coordinate sbaU be tiie norfli-soutii axis witii tiie reference location as the origin AU surveyed locations shall be reported usiag the state plane coordinate system. The surveyed control infonnation for aU data coUection points shaU be recorded and displayed in a table. The table shall give the X and Y cocnxlinates in state plane coordinate values, the ground elevation, and Ihe measuring point elevation if tiie location is a ûndwater monitoring welL Newly instaUed wells and piezometers shall be surveyed at the water level measurii]g point (notch) on the riser pipe.

Upon ccnapledon of tiie project, aU original field note books, computations, and pertinent reference materials should be deUvered to tiie site manner for retention in tiie site file. The surveyor may keep photostatic copies of tiie material AU field note reductions should be checked and marked in such a way that a visual inspection of flie field notes wUl confirm tiiat checks have been made. AU ofSce entries in field notebooks should be made in colored pencil. The of&ce worker who reduces or checks field notes should mitial each page in the color used on that page.

AU plats, m^s, figures, and eto. should be prepared using AutoCad ' and shaU be presented at a scale appropriate to the needs of tiie TNRCC. AutoCad^" files shaU sensibly sqjarate difierait types of points and layers; AutoCad ' files shaU be submitted aloi^ with the drawii^. AU drawings shaU have a place viiiere the associated AutoCad^" file name is displayed along wifli flie Ust of layers plotted and the program version number of AutoCad^** used to generate the file.


When exact locations of sampling points or otiier physical features at a site are needed, surveymg methods must be used based on existing control data. If unavaUable at tiie time ofthe investigôn, and if necessary, tiie site property boundary survey, legal description, and any physical property comers or maiuments must be established by a professional Register Professional Land Surveyor (RPLS). At a minimum, the registered surveyor wiU be required to establish at least two control points xtpon which the elevation and the State Plane coordinates are set Data on control points shaU be ofat least tiiird-ordar accuracy. A network of horizontally (and verticaUy) located contiol points has been established and is continuaUy maintained by the National Oceanic and Atmospheric Administration (NOAA) tinough its National Ocean Survey. The old horizraital dahrai, caUed tiie North American Datum of 1927 (NAD27), has been replaced with the newer datum of 1983 (NAD83).


020198


MONTTORING WELL DEVELOPMENT/ABANDONMENT REVISION #: 0 PAGE2of3

3. CoUect water level measurements in, accordance SOP 7.1 (Water Level Measurements). 4. Calculate the weU volume in accordance wifli SOP 72 (Monitoring WeU Purging witii a Bafler) or 7.3

(Monitoring WeU Purging wifli a Punqj). 5. Assemble weU development equipment in accordance with SOP 72 (Monitoring WeU Purging wifli a

Bailor) or 73 (Monitoring WeU Purging with a Punq)), depending I KMI flie development mefliod. 6. Begin developing flie weU using tiie devel^jment mefliod selected 7. CoUect field parameters after eadi weU volume ia, accordance with SOP 7.5 (Measurement of

Monitoring WeU Field Parameters) and record in lo^xwk or on (he field data sheet 8. As purge water clears, place a surge block (or weiîted baUer) in the weU and lower flie sui^ block

untU it is near the top of the screen or water surface. Alternately raise and lower tiie surge block through tiie vertical distance of one to two feet The velocity of flie surge block motion wfll depend on tiie tiîtiiess of the formation in wdiich it is instaUed

9. After surging the weU a few times at a given depth, move flie surge blodc deeper by one or two feet and repeat step 8.

10. Repeat steps 8 and 9 until the surge blodc has been lowored to tiie bottom of tiie screened section of the well

11. Slowly raise the surge block out ofthe weUL 12. Purge tiie weU of sedimoit tiiat may have accumulated due to tiie mechanical surging. 13. Repeat steps 7 through 12 until the purge water ranains clear and field parameters have stabiUzed 14. Ifthe weU is pumped to dryness or near dryness, the water level should be aUowed to sufficientiy

' recover (to the static water level) before the next development period is initiated Continuous purging over a period of several days may be necessary to complete the weU development

15. AU field decisions should be documented hi the field log book.

3.2 Wdl Abandonment

WeU abandonment reports should be submitted to the TNRCC by flie subcontractor. Abandonmoit of aU monitoring wells shaU be conducted in accordance with the foUowing procedures: 1. Remove aU surfece casing and weU casing inaterials fixjm tiie weU borehole. This may be achieved

either flirough puUing flie casing or over-drillir^ the casing. Exceptions may be made for steel surfece casings. In flie event the entire length of steel surfece casing cannot be puUed firee, tte steel casing should be cut at a depth of at least three feet below surface and this section is to be puUed firee.

2. Re-driU the borehole with a bit diameter at least equal to the diameter of original to remove the sand pack, bentorute plug, and grout seal. In tiie event the steel surfece casing cannot be removed, tiie bit diameter for re-drilling ofthe borehole shaU be at least equal to the internal steel casing diameter minus one inch.

3. Pressure grout tiie borehole using a tiremie pipe, grouting firom tiie bottom of tiie borehole to tiie top using a cement-bentonite slurry (i.e., one 94-pound sack of Portland type n cement, 15 to 8 gaUons of water, and 3 to 5 percent bentonite powder).

4. Remove the weU pad, protective steel casing, bumper posts, and any otiier anciUaty weU features/materials.


020199

STANDARD OPERATING PROCEDURE NO. 5.6 MONTTORING WELL DEVELOPMENT/ABANDONMENT

SOP#:5.6

DATE: 12)3/2001

REVISION* 0 PAGE 3 of 3

5. Restore the ground level at the weU location to the original grade. Any deviations firom these procedures wiU require the approval ofthe TNRCC project manager. 4.0 CAUTIONS AND INTERFERENCES

A newly completed monitoring weU should not be develq)ed for at least 24 hours after installation. This wUl aUow suf&cient time for tiie weU materials to cure befcnre development procedures are initiated. When surging the weU with a surge block, care should be taken to not damage the screen of tiie weU vMie smging. Cauticm should be taken when u ^ g h i^ rate punîs and/or large volume air conpressors during weU development because excessive high rate punning and high air pressures can damsê or destroy the weU screen and filter pack.

I I I I I I


020200

SOP#: 6.1

STANDARD OPERATING PROCEDURE NO. 6.1 DATE: 12/3/2001 DOCUMENTATION REVISIONS 0

PAGE 1 of 2

1.0 METHOD SUMMARY

This SOP provides guidance for documenting site activities and managing tiie data generated Airmg tiiose activities. The olgective ofthe docvmaitation program is to accurately and conqiletely describe aU field activities.


Equipment typicaUy required for documenting tiie progress of flie project iiickutes:

Field logbook • Video recorder (if necessafy) • Fieldfonos • Permanent marking pens

Camera • Ink pens (with waterproof, black ink)

The field logix»k should contain flie Mowing inforniation at a mmimiinT

Location, date and time of each activity measurements • Weatiiar conditions (changes) • The identity o^ and the caUbration results

Activity being perfonned for, each field instiiiment being used • Identity oftiieperson(s) performing flie • visitors to the site -,

activity • The numerical value and units of any field

Specific infonnation which should be included for each sanq)le includes:

; • Sample type and sampling mefliod • Identification ofconditions tiiat mi^ t affect • The identity of each san5>le and depfli(s) lherepresaitativenessofasample(e.g.,

fixjm whidi it was coUected refiielii^ pperations, dstmged weU casings) , The amount of each sample • Names of sanq)lers

• Sample description (e.g., color, odor, 1 _^\ * Photo

clarity) • Identification of san5)lii^ devices

AU infcamaticm relating to sanqilii^ activities or otiier field weak wiU be recorded in a field lo^xxik. The field logbook wiU be bound wifli consecutively numbered pages and wiU be suitable for submission as evidence in legal proceedings. Each entry in the field logbooks wiU be signed and dated by tiie auflior. AU original data recorded in the field logbook and other field forms wiU be written using permanent, wateiproof ink. Bntas rnade in the field logbook wiU be connected by flie indvidual inaking tiie entty by orossii^ a line flirou^ &^ error, entering flie correct information, and dating and initialing flie correction The field logbooks wiU becorne part ofthe project file, and should be \aspt in flie project file at aU times when not in the possession of flie field team.


020201

i i


DOCUMENTATION REVISION* 0 PAGE 2 of 2

3.2 Photographs

Gaieral guidelines:

• If possible, use a camera that has a time and/or date stamp • Obtain negatives in one continuous, uncut sheet • Do not use special lenses (i.e., wide-angle lenses) as fhey can distort the image.

Fhotogre^ ^ u l d be identified cm the bade of tiie print wifli the foUowing infonnatioiu

A brief, accurate description of wliat the photograph shows, inctudmg the name ofthe site and the locatioiL

• The date and time that the photograph was taken • The name of the photographer, and witoess, as appUcable.

When photogr^hs are taken, a record of each firame esqxised shall be kept in tiie bound field logbook along wifli the information required for eadi photograph. The field investigator shaUflien enter the required information on the prints, using flie photographic record fiom the bound field logbook, to identify ^ d i photograph.

3.3 Other Field Forms

Oflier types of records which may be used in the field include:

• Drum inventory fonns

• WeU develcpnenfpurging records

• Boringlogs

WeU construction diagrams (as-buUts)


This section is not appUcable to this SOP.

TEXAS NATURAL RESOt}RC£ CONSERVATION COMMISSION

020202

SOP#: 63 STANDARD OPERATING PROCEDURE NO. 63 DATE: 12/3/2001

COLLECTION OF VOC SAMPLES REVISIONS 0 PAGE 1 of 4

1.0 METHOD SUMMARY

The objective of fliis standard operating procedure (SOP) is to provide guidance for the sampling of volatile organic cconpounds.


Typical equ^>ment required for groundwater, surfece and subsurfece sofl sair^ling includes:

• San5)le bottles with labels • Stir bar • Oigaitic Vapor Meter • Bafler (stainless steel or disp<»able)

HermeticaUy sealed 40-ml VOA vials OT • Scoop or spatula heimetically sealed intermediate sanple • 2-oz. sample jars containers Coring device

Sample botties for the coUection of VOCs m groundwater wfll be preserved wifli hydrochloric acid.

3.0 PROCEDURES

3.1 Groundwater Sample Collection

The foUowmg procedures shaU be foUowed in the coUection of groundwater VOC samples:

1. Wells shall be purged in accordance witii one ofthe foUowing SOPs: SOP 72 (Monitor WeU Purging with a Bafler), SOP 7.3 (Monitor WeU Purging wifli a Punqj), or SOP 7.3 (Monitor WeU Micro Purging).

2. Label sample botties in accordance with SOP 6.5 (Sample Handling and Control).

3. Care must be taken f/bsa fiUing a VOC bcê to direct a slow, steatfy stream of water down the side of tiie bottie to minimize aeration of flie sangile.

4. Fflll flie sample container to tiie top ofthe container so that a meniscus is formed AUow any air bubbles to rise to the surface. CarefuUy and quickly screw the c ^ onto the container and finger ti^btai,

5. Invert fiie sanple and tap it gentiy, looking for any air bubbles. If the sample contams air bubbles, discard the sample and repeat tiie sampUng process witii a new samphng container.

6. AU sanples must be properly packaged (SOP 6.5) and chflled to 4i2°C nnmediately rpon coUection

7. During sample shpment, aU conditions relating to tiie isolation/segregation of fiie sanples firom potential contaminants (gasoline/diesel engines or generators, highly contaminated sanples, eto.) must be observed.

8. Decontaminate all non-disposable sanpUng equpment prior to moving to new sampling point and/or at tiie end of the day.

•raXVSNATtnULRESOtmCECONSatVAllONCOMMlSStoK

020203

^

SOP#:63 STANDARD OPERATING PROCEDURE NO. 6 3 DATE: 12/3/2001

COLLECTION OF VOC SAMPLES REVISION #:0 PAGE2of4

3.2 Soil Sample Collection

This section is based on the TNRCC Guidance on SW846-5035 and provides guidance for tiie implemCTtation of Method 5035. The intoat of Method 5035 is to coUect tilie sanple causing the least amount of disturbance to the sofl stmcture and to tiransfer and hermeticaUy seal tiie sanple in a sanple container as quickly as possible.

The recommended metiiod of sanple coUection fOT both low and h i ^ concenlration sofls is the closed-system field coUection using hermetically sealed 40-nfl VOA vials or hennetically sealed intermediate sanple contamers. Three vials are needed for a regular sample, and 6 vials are need fOT a matirix spflice/matrix spflce dupUcate sanple (MSMSD). BuUc sanpUng can be used fOT sanple points where the contamination is expected to be high OT wiiere the procedure requires a sample volume that exceeds the recommended 5 grams, such as TCLP determination, or wêre a sample using Method 5035 procedures cannot be coUected Method 5035 includes a procedure for preparing low concentration samples, i.e., sofl samples tiiat can reasonably be expected to contain concentrations of VOCs between 5 t^g/kg and 200 /Ug/kg, and a second procedure for high concentration sanples, Le., sofl sanples that are expected to contain greater tiian 200 Mg/kg of VOCs.

It is recommended that saeoting of sanples, both in the field using an propriate field instrument, and in tiie laboratoty using a gas chromatography screening metiiod, be conducted prior to selectii^ tiie Mefliod 5035 option. The selection of tiie appropriate analytical metiiodology depends tpon the data quaUty objectives (DQOs) for flie project These DQOs include the analytical sensitivity requirements fOT tiie project and identification of tiie VOCs present, or suspected to be present, at the site.

3.2.1 Field procedures

This recommended sairple coUection technique does not require preservative.

1. AU containers and samphng devices must be pre-cleaned and/or be certified firee of VOCs.

2. The sanple vial shottid be a standard supply 40-ml VOA vial with a PTFE (Teflon®>Uned septum that can be hemtieticaUy sealed

3. Sanple vials should be prepared in a fixed laboratory or other controUed environment The tare weight of tiie sample vial including c^, septum, and label must be determined and recorded on the label prior to shpping tiie vials to the field for sanple coUection. Qean gloves should be worn. •«tei handling tared vials.

4. Ebqiosure to air must be minimized by obtaining the sample directiy firom the sanple source using a coring device or a commerdaUy designed sampUng device and by transferring the sanple as quickly as possible to a 40-ml VOA vial (or sealing the sanple borer/henneticaUy sealed sanple container immediately). The 40-ml vial must be hameticaUy sealed immediately after placing flie saiiple in the vial. The vial should be quickly wped firee of any particulate mattar that would conpromise tiie integrity of the vial seal. Fingers should be used to minimize exposure to air by forming a temporary seal between tiie vial and tiie sampling device. The coring/sanpUng device must be designed to fit ti^tiy against tiie mouth of a tared 40-ml vial OT be smaUenov;^ to be inserted into tiie vial. Thecoring

TEXAS NATURAL RESOURCE CONS£»VAtION COMMISSION

020204

J

SGP§:63

STANDARD OPERATING PROCEDURE NO. 63 DATE: 12/3/2001 COLLECTION OF VOC SAMPLES REVISION #: 0

PAGE 3 of 4

device can be used to coUect multiple ahquots firom the same sample point provided the integrity ofthe . coring device is not compromised Ifthe coring device is designed and approved to be used as a temporary storage device for tiransport to the laboratory, the manufacturer's instiuctions shoifld be foUowed If a bulk sanple is being coUected because the concentrations in tiie sofl are considered h i ^ the 2 ounce sample jar ould be fiUed to câdty to nunimize the head space in the sanple container.

5. The sample size coUected should be approximately 5 grams (10 grams for TPH analysis by TNRCC 1005 and 1006). The coring device should be calibrated and designed to minimize the disturbance of tiie sample during coUectiOTL Several calibrated corii^ devices are avaflable (ximmerdaUy. Ifthe sampling team is not using a coring/sanpUng device fliat is caUbrated to 5 grams, tiie TNRCC stirongly recommends that, prior to coUecting any sanples, tiie sanpiling team practice coUecting 5± grams using the chosen sanphng device and a balance as described in Section 6.2.1.4 of Metiiod 5035. For non-cohesive soils and waste (e.g., dry san4 fly ash, ete.), fOT highly cohesive materials (e.g., concrete, rock, ete), and for sofls fliat have high compressive and shear strength, flie sample should be quickly transferred into a 2 ovince jar usmg a scoop or spatula. Enough sample should be coUected such that the head space in the jar is minimized.

6. A buUc sample with no preservative should be coUected to use for screening purposes in tibe laboratory, but not fOT quantitative analysis. Aftar the sanple is screened in the laboratory, tiie sample can be used to determme the percent moisture, to run the MS/MSD, to check reactivity wifli sodium bisulfete and/or to detemune the appropriate exttaction solvent, as necessary.

7. The entire sanple is consumed during the analysis for low concentiratipns of VOCs. It is recommended fliat a total of tiiree samples be coUected at each sanple point fOT a regular sanple; aUowing one sanple for the analysis, one sample in case a dflution is required, and one sample for re-analysis, if necessary.

8. For tiie sanples witii h i ^ concentrations ofvolatiles, flie sample is extracted witii meflianol and the extract is used for dflutions and/or re-analysis. Therefore, oifly two sanplK are recommended, one sample fOT analysis and one repUcate for re-analysis, if necessary. IftiieVOCconcentirationis unknown, coUect tiiree samples as stated in numb^ 7.

9. Six sanples diould be coUected at each sample point fOT niatiix spike/matrix spike dupUcated ^S/MSD) sampUng.

10. Sairple containers rernain unopened firam the tirne of coUection uiitflaiialysis.

11. The use of a balaiice in tiie field is required to check the tare wei^twhMi field preservation with meflianol is being conducted For other sample coUection procedures, balances are used to verify that an adequate volume (wd^t) of sofl is coUected, because the iiutial sofl sanple size wiU affect the quantitation limit fliat can be achieved on the sanple.

12. AU sanples must be properly packaged (SOP 6.4) and chiUed to 4±2°C imoKdiately tpon coUection.

TEXAS NATURAL R £ ^ 0 U R C X COI^JSERVATION COMMtSSitoN

020205

B S STANDARD OPERATING PROCEDURE NO. 63 COLLECTION OF VOC SAMPLES

SOP#: 6.3

DATE: 12/3/2001

REVISIONS 0 PAGE 4 of 4

I

13. During sanple shpment, aU conditions relating to tiie isolation/segregation of tiie sanples firom potential contaminants (gasoline/diesel engines or generators, highly contaminated sanples, eto.) must be observed

14. Decontaminate aU non-disposable sanpling equpment priOT to moving to anotiia weU and/or at tiie end of tiie day.

3.2.2 Oaalitv Control

The laboratory quaUty control measures specified throuôut Metiiod 5035 must be foUowed Field qpiaUty control measures should inclide a tip blank in every sanple shuttie tiiat contains sanples fOT volatile analysis regardless of the sanple coUection technique.


4.1 Groundwater Sample Collection

Make sure that fliere are no air bubbles in the sample botfle. Be careful not to agitate the sanple. The sample bottie should be quickly sealed and chflled, held at 4£2° C, and shipped to the laboratory

4.2 Soil Sample Collection

The recommended method of sanple coUection for bofli low and high concentration soils is to coUect the sample using a coring device and to quickly extrade the sanple core into a tared 40-ml vial that does not contain preservative but does contain tiie stir bar, if appUcable. The tiueads ofthe vial are inspected and wiped clean, and flie vial is quickly sealed and chflled, held at 4i2''C, and shipped to the laboratory. The laboratory should analyze flie sample within 48 hours fiom the time of coUection. Altematively, the laboratcay can preserve the sanple witiun the 48 hour time firame to extend the holding time to 14 days. The manual addition of any water, surrogates, and/OT internal standards, and aU additions of preservatives should be made using a 22-gauge or fliinner needle throu^ the septum seal. This collection procedure does not require the uise of pres^vatives in the field or balances in the field An alternative mefliod is the coUection ofthe sanple using an approved coring device tibat serves as an intermediate hometicaUy sealed sanple container. This type of sanpling device should be used according to the manufiicturer's iostructims.

I I i

TEXAS NATURAL RESOURCE CONiSERVATION COMMISSION

020206

STANDARD OPERATING PROCEDURE NO. 6.4 SAMPLE HANDLING AND CONTROL

S0P#:6.4 DATE: 12/3/2001

REVISION #: 0 PAGE lof4

1.0 METHOD SUMMARY

This SOP presents procedures for maintaining control of environmental sanples foUowing coUection tittougji shipment to flie analytical laboratory. In addition, this SOP describes standard chain-of-custody protocols which should be foUowed to document the possession of sanples fitim the time of coUection untfl the laboratory report is submitted.


Equpment needed for use in this SOP includes:

Precleaned sanple containers Preservatives (if not in containers) Sturdy cooler, in good rqiair Fiborglass stirapping tjqie Ducttipe Clear tape

Bubble w r ^ OT otiier packing material Ziploc-type bags Trashb j^ Ice Shippmg labels Pens, maricers, etc.

3.0 PROCEDURES

3.1 Sample Identification

The contractor shoifld identify procedures for unique sample identification and the relation to field identification (Le., how sanple numbers are assigned). Sanples shaU be uniquely identified, labeled, and documented in the field at tiie time of coUection. Sanples coUected for laboratory analysis are identified by using standard sanple labels which are affixed to tiie sample containers. Most analytical laboratories wiU sipply the necessary labels. The Mowing infonnation shaU be included on flie sanple label at tiie time of coUection using waterproof, nonerasable ink:

Project number Field identification or sanple station numbar Date and time of sanple coUection Designation ofthe sanple as a grab or conposite Whetiier the sample is preserved or

uipreserved The types of analyses to be performed Any relevant comments (such as leadfly detectable or identifiable odor, color, or known hazardous properties) Signature or iititials of the sanplei(s)

3.2 Sample Packaging

Environmental sample should be packed prior to shipment using flie foUowing procedures:

1. AUow sufficient headspace (^proximately 10 percent of tiie volume ofthe container) in aU botties (except volatfle orgaiuc analysis (VOA) vials with a septum seal) to COTipensate for any pressure and tenperature changes which may occur during shpment

\

TEXAS NATiniAL RESOURCE CONSERVATION COMMISSION

020207

2.

3.

5.

6.

7.

8.

9.

10.


Bisure that tiie lids on aU botties are tight

SOP#: 6.4

DATE: 12/3/2001

REVISION* 0 PAGE2of4

Select a sbirdy cool^ in good repair. Secure and tape the drain phig with fiberglass shipping t ^ or ducttjpe. Ijne the cooler with a heavy duty plastic garbjêb^.

Place glass sanple botties into bubble wrap bags or w r ^ a layer of bubble wrap around glass containers. Many laboratories provide bubble wrap b s ^ for sanple shipment Place two to three VOA vials in a single bag.

Place the botties in the cooler with larger botties on the bottom inside the garbage bag. Insert polyethylene botties between ass botties for cushion. Put VOA vials (m bubble wr^ b£^) on their side on top of flie larger sample containers.

Ensure that a flip blank has been inchided as appropriate for VOA samples and that a tenperature blank (if suppUed) is included as ouflined in SOP No. 6.3, and SOP No. 6.5.

Place ice that has been "double bagged" on top of and/OT between tiie sanples. FiU remaining void space in the cooler witii bubble wr^. Ensure that a sufficient quantity of ice has been placed into the cooler to maintain VOC samples at 4°C. In surnmer months, it may be necessary to fiU as mudi as 50 percent of the cooler volume with ice to properiy cool warm samples.

Securely festen flie top of the garbage bag with tape.

Place the Chaia-of-Custody record into a Ziploc-type bag and tape the bag to the inside of tiie cooler lid-Close the cooler and securely tape preferably with fiberglass stre^ping tê) flie top of tiie cooler shut Cbain-of-custody seals (preferably two) should be affixed to tiie cooler with clear tape so that the cooler can not be opened without breaking the seals.

11. Place the sbpping label in a sealed pouch on the Hd ofthe cooler for shpment Alabelccmtainingthe name and address ofthe shipper and tiie destination should be placed on the outside of each additional cooler included in flie shipment

3.3 Sample Shippuig

f

Samples coUected in the field shall be transported to the laboratory or field testing site as e?q)editiously as possible (wititin 24 hours of sanpling) to avoid hold time exceedances and to ensure tiiat samples remain properly preserved Samples for VOC analysis must be maintanied at a tenperature of 4*'C.

hi gaieral environmental samples include drinking water, most ground water and ambiait surfece water, soil, sediment, treated municipal and industrial wastev rater effluent, biological specimens, OT any samples not expected to be contaminated wifli high levels of hazardous materials. Sanples coUected fix>m process wastewater streams, drums, buUc storage tanks, soil, sediment, or water samples firom areas suspected of being highly contaminatedmay require shipment as dangerous goods. Regulations fOT packing maridng, labeUng, and shipping of dangerous goods by air tiansport are promulgated by the hitemational Air Transport Aufliority

TEXAS NATURAL RI SOURCE CONSERVATION COMMISSION

020208


SOP#:6.4

DATE: 12/3/2001

REVISIONS 0 PAGE3of4

(lATA), which is equivalent to United Nations Intemational Civfl Aviation Oigaiuzation (UMCAO). It is tiie responsibiUty of flie shipper to ensure tiiat shipments are made in accordance witii aH eppUcable laws, including contents and labeling.

3.4 Sample Chain-of-Custody

Procedures to ensure tiie custody and integrity of tiie sanples should begin at tiie time of sanphng and continue t h r o t ^ transport, sample receipt, preparation, analysis and storage, data generation and reporting, and sample disposal Records concenung the custody and condition ofthe sanples are maintained in field laboratoty records.

The contractor shaU maintain chain-of-custo(ty records for aU field and field QC sanples. A sanple is defined as being witiiin a person's custody if aity of tiie foUowing conditions «dst

• It is in flieir possession,

• Itisinftiarview,

• It was in flieur possession and they secured it in a locked area, or

• It is in a designated secured area.

AU sample craitainers shaU be sealed in a manner that shaU prevent OT provide detection of tampering if it occurs. In no case shaU tape be used to seal sanple containers. Samples shaU not be packaged with activated carbon unless prior approval is obtained firom TNRCC.

The foUowing minimum information ccmceming flie sanple shaU be documented on tiie TNRCC chain-of-custody form (Attachment 1):

Unique sanple idmtification Date and time of sanple coUection Source of sanple (inchiding name, location, and sanple type) Designation of matrix spflce/matrix spike dupUcate (MS/MSD) Preservative used Analyses required Number of sanple containers Pertinent field data ^ H , tenperature, elevated headspace results or contaminant concaitiations)

Serial numbOTS of custody seals and transportation cases (if used) Name(s) of person(s) coUecting the samples Custody tiransfer signatures and dates and times of sample transfer fiom tiie field to tiransporters and to the laboratoty or laboratories Transporter tracking number (if appUcable) or courier receipts

;


TEXAS NATURAL RESOURCE CONSERVATION COMKIISSiON

020209

SOP#: 6.4

STANDARD OPERATING PROCEDURE NO. 6.4 DATE: i2/3y200i SAMPLE HANDLING AND CONTROL REVISION #:0

PAGE4of4

This section is not appUcable to this SOP.


020210

m_ _m_JH__H Project Name

1 ^ ^ •

Project Location

• Hi 1 • • 1 •1 1^ Project No.

Project Manager

Sampler(s)

Sample

Date

'

Tlmc

Tvpe •

Comp.

•

Grab Sample Identiflcation

•,

Sienatures

Relinquished by;

Received by:

Relinquished by:

Received for Laboratory by:

Cuilody.frm/Jili)-m-n

Matrix

Date

Containers

No.

Time

WhlKcopy

Type

1 1 • • I • i • i 1

Analytical Parameters

1 1 Shippine Details

Method of Shipment

Airbill No.

Lab Address

Lilwnloiy

• ^ i ^ iî—

Remarks

1 Special Instructions 1

/

020211

SOI^:6.5 STANDARD OPERATING PROCEDURE NO. 6.5 DATE: 11/14/2001

COLLECTION OF QA/QC SAMPLES REVISION #: 0 PAGElofS

1.0 METHOD SUMMARY

QuaUty assmrance/quality control samples are collected to attempt to determine if sample bottle preparation, sample shipment, handling, and storage procedures had an impact on the sample integrity. Data vaUdation is an integral part ofthe sampling program and consists of reviewing and assessing the quaUty of data and determiiung the usabiUty ofthe data based on previously defined objectives.


The foUoviing eqidpment is used for collection of QA/QC samples:

Pre-cleaned sample containers (with preservatives, if required) Analyte-firee watOT (distilled or deioinzed) Staiifless steel sampling bowl Stainless steel sampling spoon Other equipment as prescribed for collecting soil or water samples

3.0 PROCEDURES

3.1 CoUection Field QA/QC Samples

3.1.1 Equipment Blanks

Equipment blanks should be collected using the following procedures:

1. Properly decontaminate the sampling device. Equipment blanks are not collected on disposable equipment (e.g., disposable bailers).

2. Select the proper sample containers and an appropriate quantity of analyte-firee water (deionized ordistiUed).

3. Complete the sample labels vdth the appropriate information.

4. Slowly pour the analyte-firee water through or over the sampling device until the sample bottie is filled to the appropriate level.

5. Seciurely tighten the cap on the bottie.

6. Prepare the bottie for shipment in accordance with SOP 6.5 (Sampling Handling and Control).

3.1.2 Field Blanks

Field blanks should be coUected downwind of possible VOC sources. The procedures for collecting field blanks are:

1. Select the proper sample containers (VOC vials) for coUecting the sample and an appropriate quantity of analyte-free water.

2. Complete the sample labels with the appropriate information.

3. Pour the water into the vial just to overflowing so that there is a meniscus at the top ofthe vials.

J ' •

TEXAS NATtniAL RESOimCE CONSERVATION COMMlSSiON '

020212

SOP#:6.5 STANDARD OPERATING PROCEDURE NO. 65 DATE: 11/14/2001

COLLECTION OF QA/QC SAMPLES REVISION*: 0 PAGE2of3

4. Securely tighten the lid on the sample vials.

5. Prepare the sample for shipment in accordance with SOP 6.5 (Sampling Handling and Control).

3.13 Field Duplicate Samples

Duplicate samples should be collected simifltaneously or in immediate succession, using identical recovery techniques, and treated in an identical maimer during storage, transportation, and analysis. If possible, collect dupUcate samples in areas known to be contaminated to assess the laboratory's abiUty to measure contamination.

1. Select the proper sample containers for coUecting a sample and a dupUcate sample.


3. Collect the sanple as required.

a. Groundwater Samples

i. CoUect the sample in accordance with the appropriate sampling SOP.

ii. Fill the sample bottie half fuU with the pump or bailer then fill the dipUcate sanple bottle half fifll. FiU title remainder ofthe sample bottle then the remainder ofthe duplicate sample bottle. If a bailer is used, attempt to fill equal quantities from each bailer load into the sample and dupUcate bottles.

b. Sofl Samples

i. Collect the sample in accordance with the appropriate sampling SOP but collect double the required sample volume.

ii. Place the sample material into a stainless steel bowl and homogenize the sample with a stainless steel spoon. Do not homogenize samples for VOC analysis as the homogenization will cause a release of VOC constiments.

iii. Quarter the sample bowl and set aside two of the sample quarters.

iv. Homogenize the sample again. '

V. FiU the appropriate sample jars using the material from the bowl, placing equal portions of sample into the sample botties.

4. Securely tighten the caps on the sample bottles.

5. Prepare the sample for shipment in accordance with SOP 6.5 (Sampling Handling and Control).

3.1.4 Field RepUcate (SpUt) Samples

If possible, collect field replicate samples fixim areas known to be contaminated to assess the laboratory's ability to measure contamination.

4. Select the proper sample containers for collecting a sample and a replicate sample.


TEXAS NATimAL RESOURCE CONSERVATION COMMISSION

020213


COLLECTION OF QA/QC SAMPLES REVISION*: 0 PAGE3of3

6. Prepare the sample using the same methods described in Section 3.1.3.

7. Place the field repUcate samples in a separate cooler for shipment to the second laboratory.

3.1.5 Matrix Spike/Matrix SpUce DupUcate (MIS/MSD)

Many laboratories can prepare the MS/MSD samples from the submitted sample volume. The sampler is only required to identify the sample for MS/MSD analysis on tiie chain of custody. Ifthe sampler is required to coUect MS/MSD samples, they should be collected as repUcate samples but with three sets of samples (one original sample, one matrix spike sample, and one matrix spike dupUcate).

3.1.6 Temperature Blank

Temperature blanks are typically prepared by the analytical laboratory and included in the shipment of sample coolers and containers. One temperature blank should be retumed to the laboratory in each sample cooler.

3.1.7 Trip Blank

Trip blanks are usually prepared by the analytical laboratory using analyte-free water and included in the shipment ofsample coolers and containers. Trip blanks should only be submitted with samples requiring VOC analysis. One trip blaiflc should be included in each sample cooler containing sanples for VOC analysis. The procedures for submittmg a trip blank are:

Prepare the coolers for shipment to the laboratory. If possible, pack all samples for VOC analysis in one cooler so that only one trip blank is required.

Identify the trip blaiJc on the chain-of-custody record. Ifthe project will continue for several days, be sure to nmnber trip blanks sequentidly so that multiple trip blanks with the same identification number are not submitted to the laboratory.

Ensure that VOC analysis (or benzene, toluene, ethylbenzene, and xylenes (BTEX) at Leaking Petroleum Storage Tank (UPST) sites) is the selected analysis for the trip blaiflc.


The types of QA/QC samples and frequency for coUection are typicaUy outlined in the project QuaUty Assurance Project Plan (QAPP). It is mportant to identify the sample frequency prior to beginning the field effort. QA/QC samples should be selected to match the sampling program (i.e., it is not necessary to coUect trip blanks for sites where orfly samples for metals analysis are being collected).

TEXAS NATURAL RESOURCE CONSERVATION COMMtSStON

020214

STANDARD OPERATING PROCEDURE NO. 7.1 WATER LEVEL/SEDIMENT MEASUREMENT

SOP#: 7.1 DATE: 4/25/2001

REVISION #: 0 PAGE 1 of 3

1.0 METHOD SUMMARY

An accurate water level measurement is necessaty to calciflate purge volumes and to create water level surface maps. This SOP describes the steps necessary to coUect a water level/sediment level from a monitoring weU.


The foUowing is a typical equipment list used for water level/sediment measurement of groundwater morutoringweUs.

Cotton string

Clear bailers

Nylon rope

Weights

Appropriate personal protective equipment (PPE)

2.1 Equipment List

Water level indicator

WeU keys

PID or FID

Logbook

As-buflt diagrams of monitoring wells

Calciflator

Plastic sheetmg

Bolt cutters

3.0 PROCEDURES

3.1 Water level/Sediment Measurement

1. Start at the least contaminated well, if knowiL

2. Inspect the weU for signs of tampering or other damage. If tampering is suspected, (i.e., casing is damaged, lock or cap is missing) this shaU be recorded in the field log book and on the weU sampling form and reported to the Field Oparations Leader. WeUs tiiat are suspected to have been tampered with shaU not be sampled untfl the Field Operations Leader has discussed the matter with the project manager.

3. Lay plastic sheeting arotmd tiie weU to minimize likelihood of contamination of equipment fixim soil adjacent to the weU.

4. Remove lockmg weU cap, note location, time of day, and date m field notebook or appropriate log form.

5. Remove weU casmg cap.

6. SCTeen head space of weU with an appropriate moiutoring instirument to detennine the presence of volatfle organic compounds and record in site logbook. Head space shoifld be screened m accordance with SOP 7.5 (Measurement of Monitor WeU Field Parameters).

TEXAS NATURAL RESOURCE CONSERVATION GOMMISSIOK

020215

SOI¥:7.1 STANDARD OPERATING PROCEDURE NO. 7.1 DATE: 4/25/2001

WATER LEVEL/SEDIMENT MEASUREMENT REVISION* 0 PAGE 2 of 3

7. For confined aquifers, wait for water level to equiUbrate before measuring wrater level.

8. Turn on the water level meter.

9. Press the battery check button (if so eqmpped). A soUd tone wiU be heard ifthe battery is good

10. Lower water level measuring device or equivalent (i.e., permanently instaUed transducers or airUne) mto weU, unreeling tiie measuring tape from tiie spool of the meter as you go.

11. Continue lowering the probe untfl a continuous tone is heard. This tone indicates that the probe has come in contact with the water.

12. Holdmg the measuring t ê near the measuring reference point, alternately raise and lower the probe across the deptii at which the tone sounds. This wiU ensure that you have an accurate measurement ofthe depth to water. Record tiie distance from water surface to tiiie referenced measuring point on weU casing in site logbook. Altematively, if there is no reference point, note that water level measurement is from top of steel casing, top of PVC riser pipe, from ground surface, or some otiier position on the wellhead, typicaUy on the north edge. Water level measurement should be recorded to the nearest 0.01 foot.

13. Measure total deptii of weU (at least twice to confirm measurement) and record in tiie site logbook or field data sheet. Total depth measurements should be recorded to the nearest 0.01 foot...

14. Ifthe field investigator suspects that excessive sediment bufldup may be occurring at the bottom of the well, the measured total depth shovfld be compared with the total deptii at the time of drilhng (from boring log). Ifthe sediment thickness exceeds one foot, or is excessively unpeding the flow of groundwater through the weU screen, the weU shall be redeveloped in accordance with SOP 5.6 (Monitor WeU Development/Abandonment).

15. Decontaminate water level probe in accordance with SOP 1.5 (Decontamination).

3.2 Measurement of Separate Phase Liquids (DNAPL or LNAPL)

Separate phase organics frequentiy occur at hazardous waste sites as ligjit non-aqueous phase liqtuds (LNAPL) or dense non-aqueous phase Uquids (DNAPL). The presence of tiiese constituents should be documented if possible. The presence of LNAPL can be confirmed using a clear bafler by lowering the bailer to just below the top ofthe wator surface, removing the bafler, and observing the contents. The voliime of LNAPL recovered can be enhanced through the use of a product cup. The presence of DNAPL can be confinned by one of two ways.

1. Lower a weighted bafler to the bottom of tiie weU, remove the bafler and observe the contents for any free product.

2. Lower a length of weighted cotton string to the bottom of tiie well, remove tiie stiring and observe tiie string for the DNAPL staining.

3. Measure and record the thickness of any free product identified to the nearest 0.01 ft.


TEXAS NATURAL RESOURCE CONSERVATION O O M K I I S ^ O N

020216


WATER LEVEL/SEDIMENT MEASUREMENT REVISION #: 0 PAGE 3 of 3

Water levels in weUs should measured from the least contaminated to the most contaminated or from upgradient to downgradient if chemistry is imknown.

TEXAS NATURAL BESOURGE CONSERVATION COMMISSION

020217

STANDARD OPERATING PROCEDURE NO. 73 PURGING A MONTTORING WELL WITH A PUMP

SOP#: 7.3 DATE: 4/25/2001

REVISIONS: 0 PAGE 1 of 3

1.0 METHOD SUMMARY

Purging is the process of removing stagnant water from a moiutoring weU, immediately prior to sampling, causing its replacement by groundwater firom the adjacent formation, which is representative of actual aquifer conditions.


The foUowmg is a typical equipment list used for purging groundwater monitoring weUs a pump.

2.1 Equipment List

Logbook

As-buflt diagrams of monitoring wells

Calculator

Field data sheets

5-gaUon buckets

Plastic sheeting

Generator, if using pump

Air compressor for bladder pumps

Pump

Gasoline for generator/air compressor

Discharge tabmg for pump

Control box (if necessary)

Appropriate pump fittings (e.g., hose clamps, barbed fittings, ete.)

Drums

Marking pen for labeling drums

Wrench for opening/sealing drums

Appropriate PPE

3.0 PROCEDURES

1. CoUect water level measurements as described in SOP 7.1 (Water Level Measurements).

2. Calculate the purge volume according to the following equation.

Volume = [d (radius of borehole)? x7.48 (gal/ft^) x 0.3] - Id (radius of weU casing)^ x 7.48 (gal/fe)l

where:

6 = pi (3.14, dimensioifless)

7.48 gal/fl? = volume of water in an open borehole

0.3 = typical estimate of filter pack porosity (30%)

Knowing the diameter of tiie borehole, there are a number of standard conversion factors which can be used to simpUfy the equation above. The volume, in gaUons per linear foot, for various standard monitor weU diameters can be calculated as foUows:

I TEXAS NATURAL RESOURCE CONSERVATION COmOSSldti

020218

SOP#: 7.3 STANDARD OPERATING PROCEDURE NO. 13 DATE: 4/25/2001

PURGING A MONITORING WELL WITH A PUMP REVISION #: 0 PAGE 2 of 3

Well volume (gal/ft) = h x c f

where:

h = height of water colunm (feet), calculated by subtracting the depth to water (WL) firom tiie total deptii of flie weU (TD). cf= the conversion factor shown on the table below.

Remember that you must use tiie radius in feet to be able to use the equation. 3. AU non-dedicated equipment shaU be decontaminated in accordance with SOP 1.5

(Decontamination) prior to sampling activities. 4. Assemble pump, hoses and safety rope, and lower the pump into the weU. Make sure tiie pump is

deep enough so aU flie water is not evacuated (Running the pump witiiiout water may cause dainage).

5. Make cormections between the pump and control box if using an air-lift or bladder pump (i.e., WeU Wizard).

6. Attach flow meter to the outiet hose to measure the volume of water purged. 7. Use a ground fault circuit interrupter (GFCI) or groimd the generator to avoid possible electric

shock. 8. Attach power supply, and begin purging tiie weU. The weU shoifld be purged at a rate low enough

to prevent water from cascading down the sides of the weU, if at aU possible. Do not aUow the pump to run dty.

9. If the pumping rate exceeds the weU recharge rate, lower the pump further into tiie weU, reduce the pumpmg rate to decrease weU drawdown, and continue pumping.

10. If using an air-lift or bladder type pump, be sure to adjust flow rate to prevent violent jolting of the hose as sample is drawn in.

11. Purge water shall be pumped into a container and dispose of as specified in the site specific sampling plaiL

12. When no sediments are visible in the purge water, begm measuring field parameters in accordance with SOP 7.5 (Measurements of Monitor WeU Field Parameters).

13. Purge the weU untfl the purge volume has been achieved, and the weU parameters have stabilized. As a general rule, aU monitoring weUs shoifld be pumper or bailed prior to sampling. Purge water should be containerized on site or handled as specified in the site specific project plan. Evacuation of a minimum of one borehole volume, and preferably tiiree to five volumes, is recommended for a representative sample

4.0 CAUTIONS AND INTERFERENCES The primary goal m performing groundwater sampUng is to obtain a representative sample of tiie groundwater body. Analysis can be compromised by field persormel m two primary ways: (I) taking an unrepresentative sample, or (2) by incorrect handling ofthe samplei. There are niunerous ways of introducing foreign contaminants into a sample, and these must be avoided by following strict sampling procedures and utilizing trained field personnel. Whfle laboratory methods have become extremely sensitive, weU controUed and quaUty assured, they cannot compensate for a poorly coUected sample. The coUection of a sample shoifld be as sensitive, highly developed and quaUty assured as the analytical procedures.

TEXAS NATURAL RESOURCE CON^SVA-nON COMMISSION

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SOP#:7.3 ^ ^ STANDARD OPERATING PROCEDURE NO. 73 DATE: 4/25/2001

PURGING A MONITORING WELL WTTH A PUMP REVISION #: 0 PAGE 3 of 3

In a non-pumping well, there wiU be Uttle or no vertical mixing of the water, and stratification wiU occur. The weU water m the screened section wiU mix with tiie groundwater due to normal flow patterns, but the weU water above tiie screened section wiU r«nain isolated, become stagnant, and may lack the contaminants representative ofthe groundwater. Persons sampling should realize tiiat stagnant water may contain foreign material inadvertentiy or deUberately introduced fixim the surfece resulting in an unrepresentative sample. To safeguard against coUecting nonrepresentative stagnant water, the foUowing guidelines and techniques should be adhered to during sampling: 1. Water level and sediment thickness measurements should be taken prior to beginning the purging

activities. 2. As a general rule, aU monitoring weUs should be pumped (preferred) or baUed prior to sampling.

Purge water shoifld be containerized on site or handled as specified in the site specific project plan.

3. A non-representative sample can result from excessive pre-pumpmg of the monitoring weU. Stratification ofthe leachate concentration in the groundwater formation may occur, or heavier-than-water compounds may sink to the lower portions of tiie aquifer. Excessive pumping can dilute or increase tiie contaminant concentrations from what is representative of tiie sampling point of interest.

Materials of construction for samplers arid evacuation equipment (bladders, pump, baflers, tubing, eto.) shoifld be limited to staiifless steel. Teflon, and glass in areas where concentrations are expected to be at or near the detection limit The tendency of organics to leach into and out of many materials make the selection of materials critical for trace analyses. The use of plastics, such as PVC or polyethylene, should be avoided when analyzing for organics. However, PVC may be used for evacuation equipment as it wiU not come m contact with the sample, and in highly contaninated wells, disposable equipment (i.e., polypropylene baflers) may be appropriate to avoid cross-contamination.

TEXAS NATURAL RESOURCE CONSERVATION COKOIISSION

020220

STANDARD OPERATING PROCEDURE NO. 7.4 MICRO PURGING A MONITORING WELL

SOP#:7.4 DATE: 4/25/2001


1.0 METHOD SUMMARY

Micro purging is an approach to purging based on the observation that groundwater flows through tiie weU screen in most formations with sufficient velocity to maintain an exchange with formation water surroundmg the weU screen. By placing a pump within the screen interval and pumping at a low-flow rate which does not induce drawdown ofthe water column, a representative sample of formation groundwater can be coUected with nummal withdrawal of stagnant water. IdeaUy micro purging should be conducted in weUs in which dedicated pumps have been instaUed. It is possible to use non-dedicated pumps tf a sufiicient amount of time is aUowed for the water level to equiUbrate foUowuig msertion of tiie pump. Whenever possible, micro purging and low-flow sampUng methods are preferred for use at Superfimd sites.


The foUowing is a typical equipment Ust used for micro purging groundwater monitoring weUs.

Equipment List

Logbook

• As-buflt diagrams of moiutoring wells

• Field data sheets

Plastic sheeting

• Generator, if using pump

• Air compressor for bladder pumps

• Pump

• Gasoline for generator or an electrical source

• Discharge tubing for punp

3.0 PROCEDURES

The procedures for micro purging are as foUows:

Control box (if necessary)

Appropriate pump fittings (e.g., hose clamps, barbed fittings, etc.)

Drums

Marking pen for labeling drunis

Wrench for opening/sealing drums

Appropriate PPE

1.

2.

AU non-dedicated equipment shaU be decontaminated m accordance with SOP 1.5 (Decontamination) prior to sampling activities.

Assemble pump, hoses and safety cable, and, if usmg a non-dedicated pump, lower the pump into the weU. TTie pump should be set at or just above the screened interval ifthe aquifer is under confined conditions (deptii to water is above the screen), or just below the aur/water interface if the aquifer is under unconfined conditions (water table straddles screen).

TEXAS NATURAL RESOURCE CONSERVAtlOK COMMISSION

020221

SOP#:7.4 STANDARD OPERATING PROCEDURE NO. 7.4 DATE: 4/25/2001

MICRO PURGING A MONITORING WELL REVISION*: 0 PAGE 2 of 3

3. If using a non-dedicated pump, aUow sufficient time for thie water level to equiUbrate to obtain a representative sample.

4. Make connections between the pump and control box ifusing an air-lift or bladder pump (i.e., WeUWizard).

5. Use a ground feult uiterrupter (GFCI) or ground the generator to avoid possible electric shock.

6. Attach power supply and begin micro purging the weU. A weU shoifld be purged at or below its recovery rate, ideaUy less than 0.2 to 0.3 L/min.

7. Moiutor the drawdown in the weU. Ifthe drawdown exceeds 0.3 ft, then reduce the pumping rate to ensure tiiat drawdown does not exceed 0.3 ft

8. Connect the water quaUty meters to die discharge hose and measure field parameters in accordance with Section 7.5 (Measurements of Monitor WeU Field Parameters).

9. Repeat the measurements at a regular interval (i.e., every minute). Record the values in the field log book. Continue purging untfl the measured parameters stabilize for 3 successive readings.

10. If field parameters have not stabflized after 3 successive readmgs, continue taking measurements at 3 minute intervals up to a maximum of 5 successive readings. If, after 5 successive readings, the parameters have not stabilized, an entry shaU be made in the field logbook mdicating that sampling wiU be conducted without stabilized parameters.

11. Purge water should be containerized on site or handled as specified in the site specific project plan


The primary goal in performing groundwêr sampling is to obtain a representative sample ofthe groundwater body. Analysis can be compromised by field persormel m two primary ways: (1) taking an unrepresentative sample, or (2) by incorrect handling ofthe sample. There are numerous ways of introducing foreign contaminants into a sample, and these must be avoided by foUowing strict sampling procedures and utilizing trained field personneL While laboratory methods have become extremely sensitive, weU contioUed and quaUty assured, they cannot compensate for a poorly coUected sample. The coUection of a sample should be as sensitive, highly developed and quaUty assured as the analytical procedures.

In a nonpumpmg weU, tiiere wfll be Uttie or no vertical mixing of the water, and stratification wfll occur. The weU water in the screened section wiU nux with the groundwater due to normal flow patterns, but the weU water above the screened section wiU remain isolated, become stagnant, and may lack the contaminants representative ofthe groundwater. Persons sampling should realize that stagnant water may contam foreign mateiial inadvertentiy or deUberately introduced firom flie surface resultmg in an umrepresentative sample. To safeguard against coUecting nonrepresentative stagnant water, the foUowing guidelines and teclmiques should be adhered to during sampUng:

1. Water level and sediment thickness measurements should be taken prior to beginning the purging activities.

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MICRO PURGING A MONITORING WELL REVISION*: 0 PAGE 3 of 3

2. As a general rule, aU monitoring wells should be pumped (preferred) or bafled prior to sampling. Purge water should be containerized on site or handled as specified in the site specific project plan.

3. For weUs that can be easfly pumped or bafled to dryness, micro purging and low-flow sampling methods shall be used.

Materials of construction for samplers and evacuation equipment (bladders, pump, baflers, tubing, etc.) should be limited to staiifless steel. Teflon, and glass hi areas where concentrations are expected to be at or near the detection Umit The tendency of organics to leach into and out of many materials make the selection of materials critical for trace analyses. The use of plastics, such as PVC or polyethylene, should be avoided when analyzing for orgaiucs. However, PVC may be used for evacuation equipment as it wiU not come m contact with tiie sample, and in h i ^ y contaminated wells, disposable equipment (Le., polypropylene baflers) may be appropriate to avoid cross-contamination.

TEXAS NATURAL RESOURCE bONSSRVATION C 6 M M I S ^ O N

020223

S € STANDARD OPERATING PROCEDURE NO. 7.5 MEASUREMENT OF FIELD PARAMETERS

SOP#: 7.5 DATE: 4/25/2001

REVISIONS: 0 PAGE 1 of 3

1.0 METHOD SUMMARY

Field parameters are coUected during surface water or groundwater sampling events to identify physical/chemical characteristics ofthe sample that are representative of field conditions as tiiey exist at tiie time of sample coUectioiL They are also used to indicate when stagnant water has been removed from the weU so that sampUng may begin. Numerous instruments are commerciaUy available for measuring field parameters. The setup and use of aU instruments should foUow a basic format to imply consistency of use. Regardless ofthe brand of meter used, aU meters should be properly maintamed and operated in accordance with the manufacturer's instractions and caUbrations should be checked prior to use.


The foUowing is a typical equipment Ust used for measuring field parameters:

2.1 Equipment List

Logbook Field data sheets Decontamination solutions Tapwater Field parameter instruments (pH meter, thermometer, conductivity meter, turbiduneter, DO meter)

CaUbration standards Tapwater Non-phosphate soap (Note: Alconox is not considered a non-phosphate soap; rather a low-phosphate soap) Glass bulb thermometer

3.0 PROCEDURES

3.1 Temperature

Temperature is a measure of hotness or coldness on a defined scale as measured using a thermometer. Typical types of thermometers include:

• Digital (thermo-couple) thermistor

Glass bulb mercury fUled

• Bi-metal strip/dial indicator

No matter which type of thermometer is used, it should be caUbrated prior to use, if possible. Digital thermometers should be caUbrated prior to use by comparison with a mercury bulb thermometer and should agree within ± 0.5 °C.

The procedures for measuring temperature are as foUows:

1. Clean the probe end with analyte-firee water and immerse into sample.

2. Swurl the thermometer m the sample.

3. Allow the thermometer to equiUbrate with the sample.

4. Suspend the thermometer away from the sides and bottom to observe the reading.


020224


MEASUREMENT OF FIELD PARAMETERS REVISION #: 0 PAGE2of3

5. Record the reading m the field log book or on the appropriate sampling log sheet. Units of temperature are degrees Celsius ("C) and should be recorded to tiie nearest tenth (0.1).

Conversion Formulas:

°F = (1.8''C) + 32°. or °C = 0.56 ("F-32°)

MM Hydrogen ion concentration (pH) is used to express both acidity and aU:alinity on a scale which ranges firom 0 to 14 with 7 representing neutraUty.

The procedures for measuring pH in the field are as foUows:

1. CaUbrate the instrument in accordance with the manufacturer's specifications.

2. CoUect a sample. Measure the temperature prior to measuring tiie pH.

3. Immerse tiie probe in the sample, keeping it away fiom the sides and bottom ofthe sample container. Allow ample time for tiie probe to equilibrate with the sample.

4. Whfle suspendmg the probe away from the sides and bottom ofthe sample contamer, record the pH. Units of pH are standard units and should be recorded m tentiis (0.1).

5. Rmse the probe with analyte-firee water and store it m a analyte-fi«e water fiUed contamer until tiie next sample is ready.

6. Perform a post caUbration at the end ofthe day and record aU findings.

3.3 Condnctivitv

Conductivity is defined as the quaUty or power of conducting or transmitting. The procedures for measuring conductivity in the field are as foUows:

1. CaUbrate the instrument in accordance with the manufacturer's specifications.

2. CoUect the sample and check and record its temperature.

3. Correct tiie conductivity mstruments temperature adjustment to the temperature of the sample (if requured).

4. Immerse the probe in the sample keepmg it away from the sides and bottom ofthe container. It is unportant tiiat tiie enture portion of tiie probe be wetted by the sample. This wiU be evident when some of tiie sample water is seen coming out ofthe smaU weep hole.

5. Record the result in tiie field log book or field sampUng sheet. Units of conductivity are micro ohms per centimeter Oiohms/cm) at 25''C. Results should be reported to the nearest 10 units for readings below 1,000 /uohms/cm and to the nearest 100 units for readings above 1,000 //ohms/cm.

6. Rinse probe.

3.4 Dissolved Oxygen


020225


MEASUREMENT OF FIELD PARAMETERS REVISION #: 0 PAGE3of3

Dissolved oxygen (DO) should be measured in-sita or "down hole" whenever possible. If m-situ measurements are not possible, precautions shoifld be taken to minimize tiie time the sample is exposed to ambient air. Dissolved oxygen readings should not exceed the saturation Umit of oxygen in water (8 to 10 mg/l). Ifreadmgs greater than lOmg/l are observed, the meter is probably not fimctioningcorrectiy. The procedures for collectmg a DO sample are as follows:

1. Inspect the membrane of the DO meter for air bubbles and/or holes. If aur bubbles or holes exist, replace the membrane.

2. CaUbrate the DO meter m accordance with the manufacturer's specifications.

3. Measure tie temperature ofthe sample and adjust the temperature setting of the DO meter, if so equipped.

4. Record the reading in the field log book or field sampling sheet. Dissolved oxygen is measured in imits of mg/l. Results should be reported to the nearest tenth of a imit (0,1).

3 5 Turfaiditv

Turbidity is measured usuig a nephelometer/turbidimeter. The procedures for measuring tinbidity are as follows:

1. Rinse the sample ceU with analyte-free water.

2. FoUow the manufacturer's specifications for coUecting a turbidity measurement.

3. Record the readmg in the field log book or field sampling sheet. The units of turbidity are nephelometric turbidity imits or NTUs. Units should be recorded to the nearest whole unit.

4.0 CAUTIONS AND INTERFERENCES Refer to owner's manual for instractions on proper calibration methods of aU field parameter measuring equpment.

I TEXAS NATURAL RESOURCE CONSERVATION COMMISSION

020226

I 1

i i

STANDARD OPERATING PROCEDURE NO. 7.8 GROUNDWATER SAMPLING USING A LOW-FLOW

TECHNIQUES

SOP#: 7.8 DATE: 4/25/2001


1.0 METHOD SUMMARY

Most hazardous waste site investigations utilize some form of a groundwater samplmg or moiutoring program to fiiUy characterize tiie nature and extent of groundwater contaminatioiL In order to obtain a representative groundwater sample for chemical analysis it is important to remove stagnant water m the borehole or pump tubic^ before coUection of the sample. This may be achieved using a variety of instiruments includmg pumps and baflers. Once purging is completed and the correct laboratory-cleaned sample containers have been prepared, sampUng may proceed SampUng may be conducted witii any of tiie above instruments, and need not be the same as the device used for purging. During sampling, a field data sheet should be completed, a chain of custody form prepared, and pertment data recorded in the site logbook. This SOP describes the procedures for sampling a monitoring weU using low-flow techniques. Low-flow methods are typicaUy used m conjunction with micropurging (See SOP 7.4).


The foUowing is a typical equipment list used for

2.1 Eqiiq)ment List

Field data sheets and sample jar labels

Chain-of-custody forms/Custody seals

Sample containers

Knife or scissors

5-gallon buckets

Plastic sheeting

Shippmg containers

Packing materials

Ziploc-type plastic bags

Field parameter instruments (pH meter, thermometer, conductivity meter, turbidimeter, DO meter)

• CaUbration standards

3.0 PROCEDURES

This section outlines the procedures for collecting representative groundwater samples using the foUowing steps: Each step in the procedure is covered in a separate SOP. The reference SOP is m paraithesis. ,

Low-flow sampUng procedures should be used whenever pumps are used for groundwater sampling. These procedures should be used in conjunction with micropurging techniques.


sampling groundwater monitoring wells using a pump.

Non-phosphate soap (Note: Alconox is not considered a non-phosphate soap; rather a low-phosphate soap)

Genorator, ifusing pump

Air compressor for bladder pumps

Pump

Gasoline for generator

Discharge tubing for pump

Contiol box (if necessary)

Appropriate pump fittmgs (e.g., hose clamps, barbed fittings, etc.)

Appropriate PPE

020227


GROUNDWATER SAMPLING USING A LOW-FLOW REVISION*: 0 TECHNIQUES PAGE 2 of 3

1. Prepare for sampling using: SOP 6.1 (Documentation), 6.3 (CoUection of VOCs), 6.4 (Sample Handling and Confrol), and 6.5 (Collection of QC Samples).

2. Water level/sediment measurements wiU be taken in accordance with SOP 7.1 (Water Level Measurement)

3. Measurement of field parameters wiU be done m accordance with SOP 7.5 (Measurements of Monitoring WeU Field Parameters).

4. Purging wiU be done in accordance with SOP 7,4 (Micro Purging).

5. AUow weU to recharge after purging to 90% of the static water leveL

6. Discoimect flow-through ceUs.

7. Assemble and label the appropriate bottles.

8. Set the pump height so that the intake is near tiie center of the screened interval.

9. Adjust the flow rate ofthe pump to minimize aeration and bubble formation. A flow rate of <0.5 L/mm is typicaUy appropriate. The pump discharge should produce a thin, continuous stream of water when filling tiie sample container.

10. Begin using the pump to fiU the appropriate container. Samples should be coUected in the foUowing order

Volatile organic compounds (VOCs)

Semi-volatile orgaruc compounds (SVOCs); includmg polyaromatic hydrocarbons (PAHs)

Inorgaiuc constituents (metals)

Mercury

Cyanide

Total organic carbon (TOC)

Total orgaruc halogen (TOX)

Samples reqmring field fUtration

Samples for field parameter measurement

Samples for nutrient anion detenninations

11. Filter and preserve samples as required by sampling plan.

12. Cap the sample contamer tightiy and place pre-labeled sample container in a pre-chiUed cooler.

13. Replace the weU cap.

14. Log aU samples m flie site logbook and on the chain-of-custody form and label aU samples in accordance with SOP 6.1 (Documentation).


020228

SOP#' 7 8 STANDARD OPERATING PROCEDURE NO. 7.8 DATE: 4/25/2001

GROUNDWATER SAMPLING USING A LOW-FLOW REVISION #: 0 TECHNIQUES PAGE 3 of 3

15. Package samples and complete necessary paperwork in accordance with SOP 6.4 (Sanple Handling and Control).

16. Transport sample to decontamination zone for preparation for transport to analytical laboratory.


Before sampling, monitoring weUs shaU be aUowed to stabilize for a minimum period of 24 hours after development.

The primary goal mperfonning groundwater sampUng is to obtain a representative sample ofthe groundwater body. Analysis can be cortpromised by field personnel in two primary ways: (1) taking an unrepresentative sample, or (2) by incorrect handling ofthe sample. There are numerous ways of intioducing foreign contaminants into a sample, and these must be avoided by foUowing strict sampling procedures and utflizmg trained field personneL Whfle laboratory methods have become extremely sensitive, weU confroUed and quaUty assured, they carmot compensate for a poorly collected sample. Tlie collection of a sample should be as sensitive, highly developed and quaUty assured as tiie analytical procedures.

Sample withdrawal methods require the use of pumps, compressed air, bailers, and samplers. IdeaUy, sample withdrawal equipment should be completely inert, economical to manufacture, easfly cleaned, sterflized, reusable, able to operate at remote sites in the absence of power sources, and capable of deUvering variable rates for sample coUection. WeUs should be sampled as soon as possible after purguig (certamly no more tiian 24 hours) and should be sampled in order from least contaminated to most contaminated or from upgradient to dowmgradient if chemistry is unknown. Water levels shaU be aUowed to recover to 90% ofthe static water level before sampling. AU non-dedicated equipment shall be decontaminated in accordance with SOP 1.5 (Decontamination) prior to use or upon completion ofthe sampling activities.


020229

APPENDIX C DQO DOCUMENTATION

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020230

DOCUMENTATION OF DATA QUALITY OBJECTIVES (DQO) PROCESS NORTH CAVALCADE SUPERFUND SITE

QUARTERLY MONITORING OF EXISTING WELLS

Step 1. STATE THE PROBLEM

Groundwater contamination, including both dissolved and Non-aqueous Phase Liquids (NAPLs) [both DNAPL (dense) and LNAPL (light)], exists at the North Cavalcade Superfimd site in the vicinity ofthe former process area. The site was used for wood preserving activities, using creosoting techniques, for a number of years. A groundwater treatment plant and extraction wells have been operating at the site since about 1993. In order to determine the groundwater gradient in the absence of pumping, extraction wells will be shut-down for a period of one month prior to each quarterly monitoring event in order to evaluate the groundwater conditions during non-pumping periods. The wells had been producing a large amount of contaminated groundwater and NAPL. In years past a disposal cell was constructed on the site and creosoting wastes from the process area were disposed in it. It has been determined that a reevaluation ofthe selected remedy for both the contaminated groundwater and the disposal cell is appropriate.

The Stated goal ofthe re-evaluation to determine whether in-situ stabilization ofthe process area, along with Monitored Natural Attenuation (MNA) ofthe groundwater emanating from this area is an appropriate remedy.

This DQO Process Documentation focuses on the issue ofthe contaminated groundwater evidenced by the existing wells at the site. The sampling and gauging activities alluded to here are intended to be repeated on a quarterly basis for 1 year.

Subsequent DQO Process Documentation will address additional investigation ofthe nature and extent of groundwater contamination by NAPL and dissolved contaminants and will address re-evaluation ofthe remedy for the disposal cell.

Step 2. IDENTIFY THE DECISION

The current investigation is plarmed in order to re-evaluate the groundwater conditions at the site in the absence of extraction well pumping to evaluate the applicability of MNA. This quarterly monitoring program is designed to investigate the nature and extent ofthe dissolved and NAPL plumes in the vicinity ofthe former process area. The quarterly monitoring program, along with other groundwater investigations is designed to

1) evaluate the concentrations and extent of dissolved Chemicals of Concem (GOCs) and NAPLs;

2) determine the flow directions, gradients and other hydrogeologlcal data;

3) evaluate the potential effectiveness of MNA on the dissolved plume.

The data will be used to help plan subsequent investigations into the extent of dissolved phase and NAPL plumes.

Different remedial strategies and/or control options may be selected based on the results of this investigation.

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020231



STEP 3. IDENTIFY INPUTS TO THE DECISION

Identify the data needed to make a decision.

Data needed to make decisions may be categorized as follows:

groundwater chemistry (COCs, MNA parameters) characteristics and trends over time;

NAPL characteristics;

hydrogeologlcal characteristics; and

lithological characteristics (not a part ofthe investigation described here).

Identify the sources of each datum and list the data that are obtained through measurements.

Data will be obtained through sampling and analyses of existing wells. Data obtained will include:

concentrations of COCs and MNA parameters;

water level measurements;

LNAPL and DNAPL level measurements (where possible); and

NAPL presence (through visual observation, odor a:nd onsite organic vapor detection).

This information will be used to determine:

groundwater flow directions and gradient;

nature and extent of dissolved plume;

nature and extent of NAPL plume;

which electron acceptors are being used;

what the limiting parameters are;

stability of dissolved plume;

presence of daughter products; and

stability of NAPL.

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020232



List the basis for the COC specific action levels.

The Concentrations of Interest [or the Level of Required Performance (LORP)] for the groundwater samples are defined by the TRRP Assessment Level (AL) for each COC which is documented in the FSP.

Identify sampling methodology arid analytical techniques to be used.

Grab samples from wells will be collected using TCEQ SOPs.

EPA method 8260 for volatile organics and 8270 for semivolatile organics documented in SW-846: Test Methods for Evaluating Solid Waste Physical/Chemical Methods (SW846) will be used.

The MNA parameters: alkalinity, nitrate, sulfate, ammonia. Total Organic Carbon (TOC), Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD) samples will be collected and analyzed in support ofthe MNA evaluation. [Note: the Nitrate and BOD samples have very short holding times of 48 hours].

Water characteristics will also be investigated through the field analyses of temperature, PLFA Biomass Content, pH, conductivity, Redox, and dissolved oxygen (DO).

[Lithological data from existing boring logs will be re-evaluated under additional groundwater investigations [not a part of this investigation]

STEP 4. DEFINE THE BOUNDARIES OF THE STUDY

Define the geographic area within which all decisions must apply.

The study boundaries are defined by the location of existing wells on and near the site. The study boundaries are the geographic area which can be described by the sampling and measurements in existing and available wells.

Additional monitoring points may be estabUshed at later dates, which will increase the study boundary.

Define the population of interest. The population of interest is every "parcel of water", within the study area boundaries, at each time t, for a period of T years.

A "parcel of water" will be defined as a volume of water or NAPL equal to the volume required for a volatile and semivolatile organic sample at a specified time and place.

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Specify the characteristics that define the population of interest.

The characteristics that defme the population of interest are:

• concentration of COCs in the parcel;

• volume percent of NAPL in the parcel • location in time and space ofthe parcel;

• rate and direction (both horizontally and vertically) of movement ofthe parcel; and

• MNA parameters ofthe parcel.

The following characteristics ofthe parcel are also of interest, but will be evaluated under additional investigations:

• characteristics of COCs and MNA parameters within the parcel (Kd, H, density, saturation point, etc.) over time;

• characteristics ofthe lithology in which the parcel resides, and adjacent lithologies (both horizontally and vertically) (lithology, permeability, strike, dip, fractures, thickness, isotropy, heterogeneity);

• characteristics ofthe water-bearing zones in which the parcel resides (velocity, direction, head, dispersivity, conductivity, yield, groundwater classification); and

• characteristics ofthe soils in which the parcel resides (sorption characteristics, foe, permeability).

Each of these characteristics is of interest at each time t, for a period of T years, in locations throughout the study area. However it will only be possible to sample these characteristics at a limited number of times and locations. Quarterly monitoring during November 2003, and February, May and August 2004 is planned.

Define the scale ofthe decision. The decision will be made over the scale ofthe affected area within the study boundaries in each discrete groundwater-bearing zone.

Detennine the time-frame to which the data apply.

The data apply to the specific time at which they were collected. However, decisions will be based on all data accumulated up to the decision.

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Determine when to collect data. Data will be collected during November 2003, and February, May and August 2004.

Identify practical constraints on the data.

Inclement weather, access from land owners and other operational problems may affect scheduled sampling. Matrix interferences, sampling problems and laboratory errors are all possible constraints on the data.

Specify the action level for the decision.

The TRRP AL defines the concentrations of interest (in lieu of Action Levels) for each COC and are tabulated in the FSP.

Develop a decision rule. Due to the complex nature ofthe investigation, development of decision rules and decision errors a priori are not possible.

STEP 6. SPECIFY LIMITS ON DECISION ERRORS

Determine the possible range ofthe parameter of interest.

Based on previous COC concentrations in grab samples collected in wells on the North Cavalcade property future COC concentrations may be expected to be similar to those shown in Table 4 ofthe FSP.

Define both types of decision errors and identify the potential consequences of each.

Establish the true state of nature for each decision error.

Define the true state of nature for the more severe decision error as the baseline condition ofthe null hypothesis (Ho) and define the true state of nature for the less severe decision error as the alternative hypothesis (Ha)

The primary question to be evaluated is "Will MNA be an appropriate remedy for the groundwater in the process area following in-situ stabilization of this area and in the absence of extraction well pumping?"

Due to the complexity of this question statistical decision rules and decision errors will not be determined. The question will be answered through quarterly monitoring of COC, NAPL and groundwater characteristics, groundwater modeling and continued evaluation ofthe site following in-situ stabilization ofthe former process area (if deemed appropriate).

Assign probability values to points above and below the action level that reflect the acceptable probability for the occurrence of decision errors.

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STEP 7. OPTIMIZE THE DESIGN

Review the DQOs.

Develop general sampling and analyses design.

The general approach to the sampling plan is established in the FSP.

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9109218 illllili - United States Environmental Protection ... · 6 MNA Parameters 7 SOPs Utilized ... The project team includes technical professionals with expertise in project management,

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