NCD980729602_19940631_Jadco-Hughes_FRBCERCLA RA_Remediation Goal Verification Plan-OCR

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RECEKVED
MAR 1 5 1994
SUPERFUNO secr,J
REMEDIATION GOAL VERIFICATION PLAN
Jadco-Hughes Site
Gaston County, North Carolina
JANUARY 1994
REF. NO. 3669 (19)
This report is printed on recycled paper.
CONESTOGA-ROVERS & ASSOOATES
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TABLE OF CONTENTS
Page
1.0 INTRODUCTION ...................................................................................................... 1
1.1 REPORT ORGANIZATION ........................................................................ 1
2.0 PROJECT DESCRIPTION .......................................................................................... 3
2.1 GENERAL. ....................................................................................................... 3
2.2 REMEDIATION OBJECTIVES ..................................................................... 3
2.2.1 Soil .................................................................................................................... 3
2.2.2 Groundwater ................................................................................................... 4
2.2.3 Performance Monitoring -Hydraulic Containment. ............................. 6
2.3 SHUT-OFF CRITERIA .................................................................................. 7
2.3.1 Groundwater Remediation ......................................................................... 7
2.3.2 Soil Remediation ........................................................................................... 9
3.0 REMEDIATION GOAL VERIFICATION (RGV) SAMPLING
AND ANALYSIS PLAN (SAP) ............................................................................... 11
3.1 RGV INVESTIGATIVE ACTIVITIES ........................................................ 11
3.1.1 Groundwater Sampling and Analysis ....................................................... 11
3.1.2 Soil Gas Sampling and Analysis ................................................................. 12
3.1.3 Groundwater Treatment System Sampling and Analysis .................... 13
3.1.4 SVE System Monitoring, Sampling and Analysis .................................. 13
3.2 SAMPLE COLLECTION AND ANALYSIS PROTOCOLS ..................... 13
3.2.1 General Sampling Protocols ........................................................................ 13
3.2.2 Monitoring Well Sampling ......................................................................... 14
3.2.2.1 Well Purging ................................................................................................ 14.
3.2.2.2 Monitoring Well Sampling Procedure .................................................. 15
3.2.3 Groundwater Treatment System Sampling Procedure ......................... 17
3.2.4 Gas Monitoring .............................................................................................. 18
3.2.4.1 SVE Exhaust Gas Monitoring ................................................................... 18
3.2.4.2 SVE Treatment System Gas Monitoring ............................................... 19
3.2.4.3 Soil Gas Monitoring ................................................................................... 19
3.2.5 Sample Labeling and·Control. ..................................................................... 20
3.2.5.1 Initial Labeling of Samples ....................................................................... 21
3.2.5.2 Sample Shipment ................................................... , ................................... 22
3.2.5.3 Chain-of-Custody-Records .......................................... "····························22
3.2.6 Analytical Protocols .................................................. .-........... ; ........................ 22
3.2.6.1 Scope ................................. : ..................................... , ....... : .............................. 22
3.2.6.2 Sample Analysis .......................................................................................... 23
3.2.6.3 Data Quality Assessment. .......................................................................... 23
3.2.6.4 Reporting ...................................................................................................... 24
3.3 WASTE MATERIAL HANDLING ............................................................ 24
3.4 ON-SITE HEALTH AND SAFETY PLAN ................................................ 24
3669 09) CONESTOGA-ROVERS & ASSOOATES
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TABLE OF CONTENTS
Page
4.0 RGV QUALITY ASSURANCE PROJECT PLAN (QAPP) .................................. 26
4.1 INTRODUCTION .......................................................................................... 26
4.2 QUALITY ASSURANCE OBJECTIVES FOR
MEASUREMENT DATA ............................................................................. 27
4.2.1 Level of QA Effort .......................................................................................... 29
4.2.2 Accuracy, Sensitivity and Precision of Analysis ..................................... 30
4.2.3 Completeness, Representativeness and Comparability ........................ 31
4.2.4 Field Measurements ...................................................................................... 31
4.3 SAMPLING PROCEDURES ......................................................................... 32
4.4 SAMPLE CUSTODY AND DOCUMENT CONTROL ............................ 32
4.1.1 Field Custody Procedures ............................................................................. 32
4.4.2 Sample Labels ................................................................................................. 32
4.4.3 Chain-of-Custody ........................................................................................... 33
4.4.4 Sample Documentation In The Laboratory ............................................. 33
4.4.5 Storage of Samples ......................................................................................... 34
4.4.6 Sample Documentation -CRA ................................................................... 34
4.5 CALIBRATION PROCEDURES AND FREQUENCY ............................. 35
4.5.1 Laboratory Instrument Performance ......................................................... 35
4.5.1.1 Organic Analyses ......................................................................................... 35
4.5.2 Laboratory Calibration .................................................................................. 36
4.5.2.1 Calibration Check ........................................................................................ 36
4.5.3 Field Instrument Calibration ...................................................................... 36
4.5.3.1 pH Meter ....................................................................................................... 37
4.5.3.2 Conductivity Meter .................................................................................... 37
4.5.3.3 HNu Meter ................................................................................................... 38
4.6 ANALYTICAL PROCEDURES .................................................................... 39
4.6.1 Overview ......................................................................................................... 39
4.6.2 Identification ................................................................................................... 39
4.6.3 Quantification ................................................................................................. 40
4.6.4 Detection Limit and Quantification Limit .............................................. .40
4.7 DATA REDUCTION, VALIDATION ASSESSMENT
AND REPORTING ........................................................................................ 40
4.8 INTERNAL QUALITY CONTROL CHECKS
AND FREQUENCY ....................................................................................... 42
4.8.1 Field QC ............................................................................................................ 42
4.8.2 Laboratory QC ................................................................................................. 42
4.8.2.1 Method Blank Samples ............................................................................. 43
4.8.2.2 Matrix Spike/Matrix Spike Duplicates (MS/MSD) Analyses ........... .43
4.8.2.3 Surrogate Compounds ............................................................................... 44
4.8.2.4 Laboratory Control Samples ..................................................................... 44
4.9 PERFORMANCE AND SYSTEM AUDITS AND FREQUENCY ........ .45
4.10 PREVENTIVE MAINTENANCE .............................................................. .46
366909) CONESTOGA-ROVERS & ASSOOATES
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TABLE OF CONTENTS
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4.11 SPECIFIC ROUTINE PROCEDURES USED TO ASSESS
DATA PRECISION, ACCURACY AND COMPLETENESS ................. .47
4.11.1 QA Measurement Quality Indicators ....................................................... .47
4.11.1.1 Precision ........................................................................................................ 47
4.11.1.2 Accuracy ........................................................................................................ 47
4.11.1.3 Outliers .......................................................................................................... 47
4.12 CORRECTIVE ACTION ................................................................................ 48
4.13 QUALITY ASSURANCE REPORT TO MANAGEMENT ................... .48
5.0 REPORTING ............................................................................................................... 50
6.0 REFERENCES ............................................................................................................. 51
3669 09) CONESTOGA-ROVERS & ASSOCIATES
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' LIST OF FIGURES
I Following
Page
0 FIGURE 1.1 SITE LOCATION 1
FIGURE 2.1 GROUNDWATER EXTRACTION SYSTEM 6 a FIGURE 2.2 SOIL VAPOR EXTRACTION SYSTEM 9
u FIGURE 3.1 MONITORING WELL LOCATIONS 11
FIGURE 3.2 TYPICAL CHAIN-OF-CUSTODY FORM 22
It FIGURE 4.1 TYPICAL SAMPLE LABEL 32
I FIGURE 4.2 TYPICAL CHAIN OF CUSTODY FORM 33
FIGURE 4.3 ANALYTICAL DATA FLOW 40
' I LIST OF TABLES
t TABLE 2.1 SOIL CLEANUP GOALS 3
I TABLE 2.2 GROUNDWATER CLEANUP GOALS 4
I TABLE 2.3 EXTRACTION SYSTEM MONITORING WELLS 7
TABLE 3.1 MONITORING PROGRAM 11
t TABLE 3.2 FIELD QUALITY CONTROL PROCEDURES · 17
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TABLE 3.3 SAMPLE COLLECTIONS, PRESERVATION AND
SHIPPING PROTOCOL SUMMARY 22
t TABLE 3.4 TCL VOCs 22
TABLE 3.5 TCL BNAs 22
I TABLE 3.6 PCB ANALYTES 22
t TABLE 3.7 INORGANIC ANALYTES 22
3669 Olll CONESTOGA-ROVERS & AsSOCIATES
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TABLE 4.1
TABLE 4.2
TABLE 4.3
TABLE 4.4
TABLE 4.5
3669 09)
LIST OF TABLES
Following
Page
SUMMARY OF SAMPLING AND ANALYSIS
PROGRAM 28
TARGETED QUANTITATION LIMITS
(ORGANIC ANALYSES/WATER) 30
TARGETED QUANTITATION LIMITS
(INORGANIC ANALYSES/WATER) 30
TARGETED QUANTITATION LIMITS
(VOC AN AL YSES/ AIR) 30
SURROGATE COMPOUND RECOVERY LIMITS 44
CONEST(X;A-ROVERS &: AsSOOATES
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1.0
3669 09)
INTRODUCTION
This Remediation Goal Verification (RGV) Plan has been
prepared as part of the Remedial Action (RA) Work Plan for the
J_adco-Hughes Site (Site) located in Gaston County, North Carolina. Figure 1. 1
shows the location of the Site. The RA activities consist of:
1)
2)
3)
4)
5)
Site spillway construction, gravity drainage line construction and the
repair of the Site culvert;
groundwater extraction system construction;
groundwater treatment system construction;
installation of soil vapor extraction (SVE) system; and
installation of a soil flushing system.
This report presents protocols that will be followed to
determine if the Remediation Goals set forth in the Record of Decision (ROD)
[United States Environmental Protection Agency (USEPA), September 27,
1990] have been met, or to determine if it is impractical to meet those
remediation goals from an engineering perspective.
The Scope of Work (SOW) to the Unilateral
Administrative Order (UAO) for the Site (USEPA Docket No. 91-31-C) states
that the RGV Plan is to "provide a mechanism to ensure that both short-term
and long-term performance standards for the Remedial Action are being
met.11
Conestoga-Rovers & Associates (CRA) has prepared this
RGV Plan on behalf of the Jadco-Hughes Steering Committee (Steering
Committee).
1.1 REPORT ORGANIZATION
This RGV Plan is organized in the following manner:
1 C0NESTOCA·R0VERS & ASS0OATES
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o' 1000' 2000'
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figure 1.1
SITE LOCATION
JADCO-HUGHES s1~
Goston County, .
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' I 3669 09)
• Section 2.0 presents the project description, including remediation
objectives and shut off criteria for the soil and groundwater treatment
systems;
• Section 3.0 presents the RGV Sampling and Analysis Plan;
• Section 4.0 presents the RGV Quality Assurance Project Plan;
• Section 5.0 presents the RGV Plan reporting requirements; and
• Section 6.0 presents a list of references.
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2.0
3669 09)
PROTECT DESCRIPTION
2.1 GENERAL
In accordance with the SOW, the purpose of the RGV Plan
is to provide a mechanism to ensure that both short-term and long-term
performance standards and remediation goals for the RA are being met or
data are being collected which illustrate the practicality of meeting the
remediation goals.
This Plan is divided into two parts as required by the
SOW:
1) RGV Sampling and Analysis Plan (SAP); and
2) RGV Quality Assurance Project Plan (QAPP).
The RGV SAP provides protocols that will be followed for
all field work and provides sampling and data gathering methods used for
this project. The RGV QAPP describes the policy, organization, functional
activities and quality assurance and quality control protocols necessary to
evaluate the Site conditions with respect to the remediation goals set forth in
the ROD and summarized in the following section.
2.2 REMEDIATION OBJECTIVES
2.2.1 Soil
The soil cleanup goals were.developed to predict the level
of soil cleanup necessary to protect groundwater. Thirteen specific
remediation goals for soil contaminants were identified in the ROD and are
presented in Table 2.1.
The soil cleanup goals were developed to predict the level
of soil cleanup necessary to protect groundwater. The rate of cleanup of the
groundwater should be increased by soil vapor extraction and soil flushing.
3 CONESTOGA-ROVERS & AsSOCIATES
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TABLE 2.1
SOIL CLEANUP GOALS
JADCO-HUGHES SITE
REMEDIATION GOAL VERIFICATION PLAN
Compound Remediation Goal
arsenic 48.0
barium 360.0
cadmium 6.0
carbon tetrachloride 3.689
chloroform 15.865
chromium 140.0
1,2-dichlorobenzene 1.5
lead 1.3
mercury 0.15
PCBs 10.0.
selenium 4.6
silver 0.6
vinyl chloride 0.014
Notes:
All concentrations are stated in mg/kg.
The above identified soil cleanup goals are developed for the
protection of the groundwater and are designed to ultimately eliminate
the leachability from soil contamination that would exceed the
established groundwater remediation goals.
CRA3(,6909J
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3669 09)
The soil vapor extraction system will begin operation until it is no longer
effective. The soil flushing system will then begin operation as an integral
part of the groundwater extraction system until the specific groundwater
remediation objectives have been achieved, or technical impracticability has
been demonstrated.
The soil remediation process described above, coupled
with groundwater extraction and monitoring, will provide adequate
assurance that the remedy will, as the ROD requires, result in concentrations
of contaminants in the soil that do not produce 'leachate' which results in
groundwater concentrations which are in exceedance of the groundwater
remediation objectives.
2.2.2 Groundwater
The groundwater remediation goals contained in the ROD
are listed in Table 2.2. These goals are based on State Groundwater Standards,
Federal Maximum Contaminant Levels (MCLs) and Proposed MCLs.
The groundwater remediation goals for select Target
Compound List (TCL) volatile organic compounds (VOCs) and Base, Neutral
and Acid Extractable Compounds (BNAs) are below technically achievable
detection levels with USEPA approved methods. In addition, the
remediation goal for vinyl chloride is below the detection limit with any
known method. Consequently, the Steering Committee will utilize USEPA
approved methods and will evaluate the remediation process and progress
with the detection limits available for these methods.
The selected remedy includes operation of the
groundwater extraction system for an estimated period of 30 years, during
which the system's performance will be carefully monitored on a regular
basis and adjusted as warranted by the performance data collected during
operation. Typical modifications may include:
1) Alternating pumping at wells to eliminate stagnation points;
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TABLE 2.2
GROUNDWATER CLEANUP GOALS
JADCO-HUGHES SITE
REMEDIATION GOAL VERIFICATION PLAN
Page 1 of 2
Compound
voes (µg/L!
Remediation Goal
acetone
benzene
2-butanone
carbon tetrachloride
-chlorobenzene
chloroethane
chloroform
1, 1-dichloroethane
1,2-dichloroethane
1, 1-dichloroeth ylene
1,2-dichloroethylene (total)
1,2-dichloropropane
ethyl benzene
2-hexanone
methylene chloride!
4-meth yl-2-pen tanone
tetrachloroethylene
toluene
1, 1, 1-trichloroethane
1, 1,2-trichloroethane
trichloroeth y Jene
vinyl chloride
xylene
BNAs (µg/L!
benzoac acid
bis(2-chloroethyl)ether
bis(2-ethylbenzyl)phthalate
1,2-dichlorobenzene
1,3-dichlorobenzene
1,4-dichlorobenzene
di-n-butyl phthalate
phenol
1,2,4-trichlorobenzene
CRA366909)
700
1
170
0.3
300
10
0.19
0.3
0.3
7
70
0.56
29
10
5
350
0.7
1,000
200
3
2.8
0.015
400
28,000
0.03
4
620
620
1.8
700
4,200
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TABLE 2.2
GROUNDWATER CLEANUP GOALS
JADCO-HUGHES SITE
REMEDIATION GOAL VERIFICATION PLAN
Page2of 2
Compound
Metals (ug/L)
Remediation Goal
Notes:
arsenic
cadmium
chromium
lead
nickel
VOC:s -volatile organic compounds
BNAs -base-neutral and acid extractable compounds
CRA3669 09)
50
5
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15
150
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3669 (19)
2) Pulse pumping to allow aquifer equilibration and to allow adsorbed
contaminants to partition into groundwater;
3) Installation of additional extraction wells to facilitate or accelerate
groundwater remediation; and
4) Discontinuation of pumping at individual wells where cleanup goals
have been attained, and after analytical confirmation.
At those wells where the remediation goals have been
attained and pumping has ceased following discontinuation of groundwater
extraction, the aquifer will be monitored to ensure that the remediation
objectives continue to be maintained. This monitoring will be conducted
according to the monitoring program established in the Operations and
Maintenance Manual.
If the Steering Committee demonstrates, in corroboration
with hydrogeological and chemical evidence, that it will be technically
impracticable to achieve and maintain remediation goals throughout the area
of attainment, the Steering Committee will petition EPA to modify the
groundwater remediation system. For example, a petition may be filed when
it has been demonstrated that contaminant levels have ceased to decline over
time, and are remaining constant at some statistically significant level above
remediation goals, in a discrete portion of the area of attainment, as verified
by multiple monitoring wells.
It is possible that technical impracticability may be reached
in a portion of the Site. Where such a situation arises, groundwater
extraction and treatment would typically continue as necessary to achieve
mass reduction and remediation goals throughout the rest of the area of
attainment.
If it is determined, on the basis of the preceding criteria
and the system performance data, that certain portions of the aquifer cannot
be restored to their beneficial use, all of the following measures involving
long term management may occur, for an indefinite period of time, as a
modification of the existing system:
5 CONESTOGA-ROVERS & ASSOCIATES
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1)
2)
3)
4)
5)
Engineering controls such as physical barriers or long term gradient
control provided by low level pumping, as a containment measure;
Chemical-specific ARARs will be waived for the cleanup of those
portions of the aquifer based on the technical impracticability of
achieving further contaminant reduction;
Institutional controls will be.provided/maintained to restrict access to
tho~e portions of the aquifer which remain above health-based goals,
since this aquifer is classified a potential drinking water source;
Continued monitoring of specified wells; and
Periodic reevaluation of remedial technologies for groundwater
restoration.
This decision to invoke any or all of these measures may
be made during a periodic review of the remedial action, which will occur at
intervals no less frequent than every five years.
2.2.3 Performance Monitoring -Hydraulic Containment
Hydraulic containment of the groundwater system will be
accomplished using four groundwater extraction wells (PWl through PW4)
and a tile collection system. The extraction wells are intended to extract
groundwater from deeper portions of the aquifer for treatment. The tile
collection system is designed to extract shallow groundwater discharging from
the Site. The location of the extraction wells and tile collection system are
shown on Figure 2.1. The hydraulic containment system is designed to
provide optimum groundwater extraction, while inhibiting the movement of
groundwater contamination off Site.
Monitoring the performance of both of these systems will
be accomplished by hydraulic (water level) monitoring of the extraction wells,
monitoring wells, piezometers and the maintenance holes and sumps which
6 CONESTOGA-ROVERS & ASSOCIATES
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CRA
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-----PROPERTY LINE
------TIL£ DRAIN
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fORC[MAIN
PROPOS(D HOOl<-UP
PROPOSED SOIL F1.USHING
EXTRACTION TR[NQ-1
CAPTURE ZONE AREA
SHALLOW MONITORING WELL
DEEP MONITORING 'tt(LL
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J669 (19) JAN 28/94(W) REV.O (P-61)
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PUMPING \ltUl
SURACE WA T[R SAMPLING LOCATION
DEEP PIEZOMETER
SHAU.OW PIEZOMETER
PRE-CAST CONCRETE CHAMBERS
UANH()_[ CULVERT
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figure 2.1
GROUNDWATER EXTRACTION SYSTEM
JADCO-HUGHES SITE
Gaston County, NC
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3669 09)
are part of the tile collection system. Water level measurements will be
collected quarterly in conjunction with the groundwater sampling program
(see Section 3.0). After a two-year period, water levels will be collected
annually.
Water level measurements will be used to develop
groundwater contours for the Site. Based on groundwater elevations and
hydraulic gradients, hydraulic containment can be verified. In addition,
groundwater analytical data from monitoring wells will also verify hydraulic
containment by showing constant or reducing contaminant concentrations
over time. The monitoring wells associated with each extraction well or
trench are shown in Table 2.3.
Based on the hydraulic monitoring data, the groundwater
extraction systems will be evaluated and recommendations to alter the
groundwater pumping rates for achieving optimum groundwater extraction
can be determined.
2.3 SHUT-OFF CRITERIA
A discussion of the process and criteria for shutting down
some or all of the groundwater extraction and s_oil vapor extraction systems is
presented below.
2.3.1 Groundwater Remediation
At the outset, it is estimated that groundwater extraction
will continue for an estimated period of 30 years (see Appendix C of the RD
Work Plan). Groundwater extraction will be accomplished by using four
extraction wells (PWl through PW4) and a tile drain collection system (see
Figure 2.1), with estimated extraction rates of 1 gpm per well and 18 gpm for
the tile collection system. Monitoring of the chemical compounds contained
in the groundwater from the extraction wells, tile collection system,
monitoring wells and groundwater treatment system will occur on a
7 CONESTOGA-ROVERS & AsSOCIATES
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Extraction Well
PWl
PW2
PW3
PW4
CRA366909)
TABLE 2.3
EXTRACTION SYSTEM MONITORING WELLS
JADCO-HUGHES SITE
REMEDIATION GOAL VERIFICATION PLAN
Associated Monitoring
MW2S, MW2D, MWl0D
MWSS, MWSD, MWSDD
MW3S, MW3D \..
MWBS
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3669(19)
scheduled basis, as discussed in Section 3.0. Long-term groundwater
monitoring will determine the effectiveness of the groundwater remediation
system and ultimately the soil remediation system. Moreover, groundwater
analytical results will be utilized to determine when to discontinue
groundwater remediation.
Generally, contaminant mass removal exhibits a
curvilinear reduction over time with the greatest amount of mass removal
occurring during the firslfew years of operation of the groundwater
extraction system. Due to the limitations of this technology, contaminant
concentrations eventually reach an asymptote where continued groundwater
pumping results in insignificant mass removal.
If the groundwater in the vicinity of one or more
extraction wells or in the vicinity of the tile collection system achieves the
groundwater remediation goals established in the ROD (Section 2.2), then that
specific well or system, or portion of the system can be shut down.
Achievement of the groundwater remediation goals will be determined by
two consecutive rounds of groundwater samples which exhibit levels of
contaminants which are below the remediation goals.
Wherever a portion or all of the groundwater extraction .
system has been shut down, that portion of the system will become a
groundwater monitoring point for long-term sampling. Future sampling
will determine if an increase in contaminant concentration is occurring. If
future analytical results show an increase contaminant concentration above
the remediation goals (a "rebound effect"), then an evaluation and
recommendation will be made in the periodic progress reports. "Rebound"
effects may be caused by one or more of the following:
i)
ii)
iii)
iv)
diffusion of contaminants in low-permeability sediments;
hydrodynamic isolation within well fields;
desorption of chemical compounds from sediments; and/ or
partitioning of immiscible fluids into groundwater.
8 CONESTOGA-ROVERS & ASSOOATES
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3669 09)
The extraction system will be brought on line and
operated in cycles if appropriate, until rebound effects are minimal.
After a minimum of five years of pumping, and once
rebound effects have been minimized, if groundwater remediation goals
have not been attained, or the chemical compounds in groundwater appear to
have reached an asymptote and further contaminant reduction is unlikely,
then the existing system may be modified as described in Section 2.2.2, above.
The criteria for assessing asymptotic contaminant levels over time will be
linear regression using the Student t-test at a 95 percent confidence level. The
slope of this fitted regression line will be no greater than zero for each
extraction well or trench capture area. Thus, the monitoring data will be
grouped with the associated extraction well or trench, as shown in Table 2.3,
for this shut-off determination.
Alternatively, in accordance with North Carolina
Administrative Code (NCAC) T15A:02L.0106 (M)(2)(A), the Steering
Committee may prepare its petition for the termination of groundwater
remediation based upon a demonstration that "continuation of corrective
action would not result in a significant reduction in the concentration of
contaminants ... ", based upon an asymptotic slope of less than 2.5 percent over
a period of one year.
2.3.2 Soil Remediation
The objective of the soil vapor extraction (SVE) system is
to accelerate soil as well as groundwater remediation at the Site. The SVE
system will consist of a series of soil vapor extraction trenches in the former
landfill area (see Figure 2.2), and SVE treatment equipment. During
operation of the SVE system, soil gas samples will be collected from the SVE
system influent treatment line and from associated soil gas probes in
accordance with the long-term monitoring program presented in Section 3.0.
Unlike the groundwater extraction system, there are no
remediation goals directly associated with the SVE system. The soil
9 CONESTOGA-ROVERS & AsSOCJATES
--
FENCE LINE
LIMIT OF FORMER
LANDFILL AREA
!!!!!I l!!l!9 em
LIMIT OF NEW CLAY CAP------
OR SYNTHETIC LINER
(SLOPED NE FOR DRAINAGE)
==
[
3• ISOLATION/VACUUM
CONTROL VALVE
TOP OF
CASON STREET
CONCRETE SUPPORT/SEAL
9' DEEP x 100' LONG
AIR INFll TRA TION TRENCH.
( TYPICAL OF 4)
SOIL CAP=-----~===::::;;/1~=========:::;;1~:::::========~r=== GRADE
-2·---•·---6'--
-a·--
-10·--
-12·--
CRA
GRAVEL PACKED
VAPOR EXTRACTION
TRENCH (TYPICAL)
sz
3669 (19) JAN 28/94(W) REV.1 (P-6J)
GRAVEL PACKED
AIR INLET TRENCH
(TYPICAL)
~
1~
2" PERFORATED PIPE
FOR FUTURE SOIL
FLUSHING (TYPICAL)
iiii -..
a· DIA. PVC SOIL VAPOR
EXTRACTION HEADER
MW3S
0
SVE EQUIPMENT
I ED ED I ~~BON VESSELS
9' DEEP x 80' LONG
VAPOR EXTRACTION TRENCH.
(TYPICAL OF 5)
figure 2.2
SOIL VAPOR EXTRACTION SYSTEM
JADCO-HUGHES SITE
Goston County, NC
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remediation goals provided in Section 2.2 will not be achievable by the SVE
system alone. Hence, the shut off criteria for the SVE system is dependent on
its operating effectiveness. As presented in the Preliminary Design Report
(CRA, 1993), the SVE pilot study estimated that 5,000 soil pore volume
exchanges would be required in order to remove VOCs to a level that would
approach non-detect levels in soil gas for most constituents in the soil.
The SVE system will operate continuously until
approximately 5,000 soil pore volumes are removed. The pore volume
removal rate is dependent on the achievable SVE system flow rate and radius
of influence. Based on the results of the SVE pilot test, 5,000 pore volumes is
estimated to be removed from the former landfill area within a six-month
period. After the 5,000 pore volumes are removed, the operation of the SVE
system will discontinue.
Following a brief shutdown period, the SVE system would
be turned on and extracted VOCs monitored with a photoionization detector
(PIO). If an increase above those levels measured before the system was shut
down in organic vapors is noted, then the SVE system would operate for
approximately a one-month period to remove any soil VOCs released by
diffusion. This rebound effect is not uncommon, where VOCs from a less
permeable soil zone migrates upward via diffusion (reference: Soil Vapor
Extraction Technology -Reference Handbook, USEPA, 1991). Cyclic operation
of the SVE system would continue until a statistically insignificant VOC
rebound occurs. The operation of the SVE system will then be discontinued
permanently.
After the SVE system is shut down, the operation of the
soil flushing system will begin. The soil flushing system will be monitored
according to the monitoring program discussed in Section 3.0. The
methodology for evaluating the remediation goals of the soil flushing system
will be consistent with the procedures for the groundwater remediation
system. Thus, if the water collected from soil flushing extraction trench
meets the groundwater remediation objectives provided in Section 2.2, the
soil flushing system will be shut off. The system may be turned back on if
groundwater monitoring of the soil flushing system indicate that
contaminant levels exceed the groundwater remediation objectives.
10 CONESTOGA-ROVERS & A~SOCIATFS
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3',l,909)
REMEDIATION GOAL VERIFICATION (RGV) SAMPLING
AND ANALYSIS PLAN (SAP)
3.1 RGV INVESTIGATIVE ACTIVITIES
There are four different types of RGV sampling activities
which are described below:
• groundwater sampling and analysis;
• soil gas sampling and analysis;
• groundwater treatment system sampling and analysis; and
• SVE treatment system monitoring, sampling and analysis.
3.1.1 Groundwater Sampling and Analysis
The groundwater sampling and analysis will be
performed to evaluate the level of contaminant reduction in the Site aquifer.
As a part of the RGV activities, groundwater from the monitoring wells and
the extraction system will be analyzed for Target Compound List VOCs,
BNAs, Polychlorinated Biphenyls (PCBs), and a select list of metals at the
frequencies presented in Table 3.1. The monitoring well locations are shown
on Figure 3.1. The monitoring program is based on the groundwater
moni taring pro gr am presented in the USEP A approved Feasibility Study.
The basis for the monitoring program is outlined below.
i)
ii)
The groundwater monitoring system involves the collection of
groundwater samples within areas of known groundwater
contamination. These data are used to monitor the progress of
remediation and the redistribution of contamination within the
aquifer in response to pumping.
The sentry groundwater system is designed to monitor the
groundwater zone downgradient and below the contaminant plume.
Should groundwater contamination migrate vertically downward or
11 CONESTOGA-ROVERS & AsSOCIATES
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TABLE3.l
I MONITORING PROGRAM
JADCO-HUGHES SITE
REMEDIATION GOAL VERIFICATION PLAN
I
I Groundwater Remediation voes BNAs PCBs Metals Water Levels
A. Groundwater Monitoring Wells
I MW2S Q2IA A A Verification Q2/A
MW2D Q2IA A A Verification Q2/A
MW3S Q2IA A A Verifica lion Q2/A
8 MWSS Q2/A A A Verification Q2/A
MWSD Q2/A A A Verification Q2/A
MW6S Q2IA A A Verification Q2/A
MW7S Q2/A A A Verification Q2/A
I MWBS Q2IA A A Verifica lion Q2IA
I B. Sentry Groundwater Monitoring System
MW3D Q2/A • • Verifica lion Q2/A
MWSDD Q2/A • • · Verification Q2/A I MW6D Q2IA • • Verification Q2/A
MW9S Q2/A • • Verification Q2IA
MWIOD Q2IA • • Verification Q2IA
I MW125 Q2IA • • Verification Q2IA
MW12D Q2IA • • Verification Q2IA
MWI45 Q2IA • • Verification Q2IA
MWl4D Q2IA • • Verification Q2IA I MWISS Q2IA • • Verifica lion Q2IA
MW15D Q2/A • • Verification Q2IA
SS9 Q2/A • • Verification Q2IA
I 5514 Q2/A • • V crifica lion Q2IA
5515 Q2/A • • Verification Q2/A
I C. Extraction System
PW! Q2/A A A Verifica lion NIA
I PW2 Q2/A A A Verification NIA
PW3 Q2IA A A Verification NIA
PW4 Q2/A A A Verification NIA
Sump for Soil Flushing Q2IA A A Verification NIA
I Extraction Trench (future)
Treatment Plant Influent Q2/A A A Verifica lion NIA
Treatment Plant Effluent Q2IA A A Verification NIA
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A. Soil Gas Probes
TABLE 3.1
MONITORING PROGRAM
JADCO-HUGHES SITE
REMEDIATION GOAL VERIFICATION PLAN
voes BNAs PCBs
B. SVE Exhaust Gas
Treatment System Effluent
Q (])
Q (])
Q(l)
Page2 of 2
Metals Water Levels
NIA
NIA
NIA
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Q2/A
QS/A
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BNAs
Metals
A
Q
Verification
(1)
CRA 3669 09)
not analyzed
not applicable
sample quarterly for two years, annually thereafter
sample quarterly for five years, annually thereafter
sample 7 of 14 stations each year, alternate 7 one year, 7 the next year
volatile organic compounds
base/neutral and acid extractable compounds
lead, cadmium, chromium, nickel and arsenic
annually
quarterly
to be verified after remediation of groundwater complete
Monitoring frequency to be increased to monthly toward end of shut-off of SVE system. Sample
collection to include measurement of flow, line pressure and temperature for mass balance
calculations. Soil gas probe monitoring will be discontinued after SVE system operation is
terminated.
----
------
..,.
LOCATED ON
CAROUNA
CUSTOM
CABtNETS PRa=tERlY
CRA
·-· .. .,.
ePZ4S
•'"° ·~
--
J.W:Mll.
PROPERTY LINE
SHALLOW MONITORING \l,[LL
DEEP MONITORING WEU.
SHALLOW PtEZOMETER
DEEP PIEZOt.lETER
PUMPING Yo(LL
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3669 (19) JAN 28/94(W) REV.O (P-62)
- -- - --II!!!! 1!11111 --iiiil
~
0 50 IOOlt
figure 3.1
MONITORING WELL AND PIEZOMETER LOCATIONS
JADCO-HUGHES SITE
Gaston County, NC
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iii)
northward against the influence of the groundwater extraction system,
contamination would be detected in the sentry well system.
The extraction system monitoring involves the collection and analysis
of samples from the collection drain, the four extraction wells and the
combined influent to the treatment system. These data are used to
monitor the progress of remediation.
Four parameter groups were selected for routine analysis
as follows:
• voes;
• BNAs;
• PeBs (Arochlor 1248 and Arochlor 1232 -the only isomers detected on
Site); and
• Selected Metals (nickel, lead, chromium, cadmium and arsenic).
Since voes are the most prevalent and most mobile
contaminant group at the Site, these compounds are monitored at all
monitoring stations, as shown in Table 3.1. BNAs, PeBs and metals are
monitored at all plume and extraction monitoring stations. However, BNAs,
PeBs and metals are monitored at 7 of 14 selected sentry locations, to be
rotated each sampling round.
The frequency of monitoring is annual for long-term
monitoring given the slow rate of groundwater movement of 8 to
14 feet/year. The monitoring program involves more frequent sampling in
the first two years to assist in optimizing the operation of the groundwater
extraction and treatment system.
3.1.2 Soil Gas Sampling and Analysis
The soil gas sampling and analysis will be performed to
evaluate the level of voe contaminant reduction in Site soils. The sampling
frequencies are presented in Table 3.1.
12 CONESTOGA-ROVERS & AsSOClATES
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3.1.3 Groundwater Treatment System Sampling and Analysis
The groundwater treatment system influent and effluent
water sampling and analysis will be performed to evaluate the effectiveness
of the treatment system. The samples will be analyzed for VOC, BNA, PCBs
and a select list of metals at the frequencies presented in Table 3.1.
3.1.4 SVE System Monitoring, Sampling and Analysis
The SVE monitoring, sampling and analysis will be
performed to evaluate the effectiveness of the SVE system. The samples will
be monitored for total voe by continuous PIO measurements at the
frequencies listed in Table 3.1. The SVE exhaust gases will be continuously
monitored and sampled as presented in Table 3.1.
3.2 SAMPLE COLLECTION AND ANALYSIS PROTOCOLS
3.2.1 General Sampling Protocols
The following protocols will be employed during all
sampling throughout this program:
1)
2)
All sampling activities will be conducted in accordance with the RD
Health and Safety Plan (Submittal A to the RD Work Plan) which was
approved by USEPA on March 1, 1993.
Sampling instruments and equipment used in collecting samples for
chemical analysis will be cleaned in accordance with the following
protocols:
a)
b)
clean water and non-phosphate detergent wash using a brush;
rinse thoroughly with potable water;
13 CONESTOGA-ROVERS & AsSOCJATFS
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3)
4)
c)
d)
e)
f)
rinse twice with pesticide-grade isopropyl alcohol;
rinse thoroughly with deionized water;
allow equipment to air dry on a clean plastic sheet as long as
possible; and
tag, label, mark with date and wrap in aluminum foil until use.
A new pair of disposable latex gloves will be used at each sampling
location. Additional glove changes will be undertaken as conditions
warrant.
Sampling and analysis activities, decontamination activities and the
selection, use and calibration of sampling equipment and instruments
will follow the protocol and guidelines of the Region IV Standard
Operating Procedures (SOPs) USEPA Region IV, February 1, 1991.
Additional protocols specific to each sampling method are
presented in the following sections.
3.2.2 Monitoring Well Sampling
3.2.2.1 Well Purging
Prior to sample collection, all monitoring wells will be
purged in accordance with the following protocols:
1) Water levels in all wells will be measured to ±0.01 foot prior to
purging.
2) All wells will be purged by one of the following techniques:
a)
b)
bailing with a bottom loading stainless steel/Teflon bailer
attached to a nylon rope;
a Teflon bladder stainless steel pump fitted with Teflon
discharge and polyethylene air supply lines attached to a nylon
rope;
14 CONESTOGA-ROVERS & ASSOCIATES
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3669 09)
3)
4)
c)
d)
a peristaltic pump with a Teflon discharge line; or
a two-inch submersible pump.
Discharge tubing, if used, will be dedicated to each well. The small
length of silicon tubing within the peristaltic pump will not be replaced
between wells. New nylon rope and polyethylene tubing, where
applicable, will be used at each well location.
The preferred method for well purging is bailing with a bottom loading
stainless steel/Teflon bailer. The other methods will be used as
alternates in the event that the preferred method cannot be used.
Purging will be conducted until a minimum of three well volumes are
evacuated. After each well volume is evacuated, a sample will be
collected and analyzed for pH, temperature and conductivity.
All purge water will be handled in accordance with the protocols
specified in Section 3.3.
3.2.2.2 Monitoring Well Sampling Procedure
Sampling frequency will be conducted according to the
monitoring program presented in Table 3.1. The monitoring well locations
are shown on Figure 3.1.
Following well purging, monitoring well sampling will be
carried out according to the following protocols:
1) Water samples will be collected for chemical analysis using one of the
following techniques:
a) a bottom loading stainless steel/Teflon bailer attached to a nylon
rope; or
15 CONESTOGA-ROVERS & ASSOCIATES
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2)
3)
4)
3669 09)
b) a Teflon bladder stainless steel pump fitted with Teflon
discharge tubing and polyethylene air supply lines attached to a
nylon rope.
Prior to use in any monitoring well, the sampling equipment will be
precleaned as described in Section 3.2.1. New nylon rope and
polyethylene tubing, where applicable, will be used at each well
location.
In the event that the groundwater is still turbid following purging,
additional purging and/ or alternate sampling techniques (i.e. low
pumping rate) may be utilized to collect representative samples which
are sediment-free or samples that are as sediment-free as possible.
In the event that a well is purged dry, sample collection will commence
on the following day and continue for up to four consecutive days to
obtain the required sample volume. Sampling may commence on the
day of purging if the water level recovers to static water level within
four hours after completion of purging. A well shall be deemed dry for
sampling purposes if the volume of water collected over four days is
not sufficient for the required analysis. The above procedure may
require four consecutive days for slow recovering wells.
Sufficient groundwater will be collected for chemical analysis of voe,
BNA, PeBs and a select list of metals (see Section 3.2.5.2). Groundwater
samples collected for voe analysis will be collected in 3 x 40 mL glass
septum cap vials each preserved with four drops of He!. BNA and
PeBs groundwater samples will be collected in two I liter amber glass
bottles for each analysis. The select list metals groundwater samples
will be collected in 500 mL polyethylene bottles and preserved with
50% HN03 to pH <2.
Sample containers will be IeH-EM 300 series or equivalent to ensure
containers are analyte free. Sample containers will be shipped to the
site in sealed containers from a single lot of prepared bottles. A trip
blank will be included for all aqueous voe sampling events. The trip
16 CONESTOGA-ROVERS & AssoaATES
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3669 (19)
5)
6)
7)
blank will be prepared, in duplicate, in the laboratory, and will consist
of two sets of bottles from the_ same lot of bottles as the sample bottles,
filled with distilled/ deionized water. One set will be retained in the lab
and the second set will be sent with the sample bottles. Both sets will
be analyzed using the same protocols as those used for water sample
analysis.
Field measurements of pH (using a Fisher Model MDL-107 pH meter or
equivalent), conductivity and temperature (using a YSI Model 33 SCT
meter or equivalent) will be taken after well purging, prior to sample
collection. Calibration of field instruments will be undertaken daily, at
the beginning of the day in accordance with manufacturer's
specifications.
A blind field duplicate sample will be collected per set of samples per
matrix (a set of samples is defined as the samples collected in a matrix
for a specific sampling event, for example a groundwater sampling
round) or at a minimum frequency of one in ten locations per matrix.
A rinsate sample will be collected per set of samples or at a minimum
frequency of one in ten locations. The rinsate sample will consist of
deionized/distilled water poured into, and then sampled out of, a
bailer /pump cleaned under the protocol specified for sampling
equipment. The rinsate blank collected for metals will be in duplicate
(filtered and unfiltered). -
Table 3.2 presents a summary of field quality control
procedures established for both water and soil gas matrices. Quality control
protocols are presented in the RGV QAPP, which is presented in Section 4.0.
3.2.3 Groundwater Treatment System Sampling Procedure
The groundwater treatment system sampling procedure
will consist of sampling the influent and effluent water. The sampling
locations will be sample taps situated in the influent piping to the treatment
17 CONESTOGA-ROVERS & ASSOOATES
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TABLE 3.2
FIELD QUALITY CONTROL PROCEDURES
JADCO-HUGHES SITE
REMEDIATION GOAL VERIFICATION PLAN
Matrices Trip Blank
Groundwater, one per set of samples
Treatment System
Water
Soil Gas, SVE
Exhaust Gas
Note:
Rinsate Sample
one per set of samples
or a minimum of
1 in 10 investigatory
sampling locations (2)
Field Duplicate
one per set of samples
or a minimum of
1 in 10 investigatory
sampling locations
one per set of samples
or a minimum of
1 in 10 investigatory
sampling locations
(1) Additional sample (three times the designated value) will be collected for matrix
spike/matrix spike duplicate analyses.
(2) Where sampling equipment, such as hailers, are used.
Matrix Spike/
Matrix Spike
Duplicates (1)
one per set of samples
or a minimum of
1 in 20 investigatory
sampling locations
one per set of samples
or a minimum of
1 in 20 investigatory
sampling locations (3)
(3) For soil gas and SVE treatment system samples, one matrix spike and one duplicate will be performed by
the laboratory per 20 investigative samples.
CRA 3669(19)
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system at the aeration tank and effluent will be sampled at the manhole
located on Cason Street.
Samples will be obtained by opening the sample tap and
allowing the water to flow through the sample tap for five minutes. The
samples will then be collected directly into the sample container.
Sufficient untreated or treated water will be collected for
VOC, BNA, PCBs and a select list of metals analyses, as required by the
monitoring frequency set out in Table 3.1.
Sample container requirements, field measurements and
field quality control procedures are the same for wastewater sampling as those
presented for groundwater in Section 3.2.2.2, above.
3.2.4 Gas Monitoring
3.2.4.1 SVE Exhaust Gas Monitoring
The SVE gas samples will be collected from a sampling
port in the exhaust side of the SVE vacuum blower, upstream from the
treatment unit. The samples will be collected in accordance with the
following protocols for VOCs:
2)
3)
The samples will be collected by attaching a pre-evacuated, 6 liter
Summa® gas canister to the sampling port using Swageloc®
compression tube connectors.
The samples will be collected while the vacuum blower is operating at
its nominal flow rate and pressure by opening both the sample port
valve and the Summa® canister valve.
The valves will be left open until the pressure on the canister has
equilibrated with that on the SVE exhaust line as indicated by a
pressure gauge on the intake of the canister.
18 CONESTOGA-ROVERS & Asso□ATES
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3669 09)
4) The valve on the canister will be closed and then the valve on the
exhaust port will be closed.
5) The canister will be labeled with the location, time, date, sampler
name, initial and exhaust pressure as specified in the RGV QAPP.
QA/QC samples (duplicates) will be collected as specified in the RGV
QAPP.
6) The samples will be shipped to the laboratory within 24 hours of
collection.
3.2.4.2 SVE Treatment System Gas Monitoring
The SVE treatment system gas will be monitored for total
VOCs by periodic PIO measurements. The measurements will be made
according to the following protocols:
1) The PIO (HNu) will be calibrated as described in Section 4.5.3.3 of the
RGV QAPP; and
2) The measurements will be taken while the vacuum blower is
operating at its nominal flow rate.
3.2.4.3 Soil Gas Monitoring
Soil gas samples will be collected from the permanent
monitoring probes which were placed in the former landfill during the SVE
treatability study conducted in 1993, according to the following protocols:
1) Samples will be collected after the SVE system has been shut off at least
48 hours.
19 CONESTOGA-ROVERS & AssoaATFS
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2)
3)
4)
5)
6)
7)
8)
Samples will be collected by attaching a pre-evacuated, 6 liter Summa®
gas canister and portable vacuum pump with a T-connector to the
probe with the valves on the probe and canister closed.
The probe will be evacuated for a sufficient time to remove three probe
volumes of gas at standard temperature and pressure. The probe
evacuation volume will be calculated based on the volume of the
tubing leading to the sampling interval and the approximate pore
volume of the sand pack in the sampling interval.
After purging is complete, but prior to shutting off the vacuum pump,
the valve between the pump and the T-connector will be closed. The
vacuum pump will then be shut off.
With the probe valve open and the canister valve shut, the probe will
be allowed to equilibrate to ambient pressure.
After the vacuum gauge on the probe has read zero vacuum for one
minute, the valve on the Summa® canister will be opened to collect
the sample. Sampling will be complete after the vacuum gauge on the
probe has read zero vacuum for one minute and the valves on the
canister and the probe will be closed.
The canister will be labeled with the location, time, date and sampler
name as specified in the RGV QAPP. QA/QC samples (duplicates) will
be collected as specified in Table 3.2.
The samples will be shipped to the laboratory within 24 hours of
/ collection.
3.2.5 Sample Labeling and Control
Sample labeling and control will be consistent with
USEPA requirements and CRA procedures. These procedures are discussed
below.
366909) 20 CONESTOGA-ROVERS & ASSOOATES
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3.2.5.1 Initial Labeling of Samples
A unique numbering system will be used to identify each
collected sample. This system will provide a tracking number to allow
retrieval and cross-referencing of sample information. A listing of the
sample identification numbers with written descriptions of sample location,
type, time and date will be maintained by CRA's on-Site personnel. The
sample number system to be used is described as follows:
Example:
where:
w
YYMMDD
AA
xxxx
W-YYMMDD-AA-XXXX
-designates sample type
(W -water, G -gas)
-date of collection (year, month, day)
sampler initials
-sequential number starting with 0001
Quality Control samples will also be numbered with a unique location
number using this numbering system.
CRA's on-Site personnel will be responsible for recording
the sampling activities for each day and will record in the log book the
following with respect to each sample:
1)
2)
3)
4)
Unique sample identification number;
Sampling location identification;
Date/time of sample collection; and
Sampling data/remarks.
21 CONESTOGA-ROVERS & ASSO□ATE.S
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3669 09)
3.2.5.2 Sample Shipment
All water and soil samples will be placed in laboratory
supplied coolers and iced to 4°C (±2°C) after collection and labeling. Summa®
canisters and the filter with adsorbent cartridge will be placed in the original
shipping cartons. All samples will be delivered to the laboratory within
48 hours of sample collection by commercial courier.
Individual sample bottles will not be sealed; however,
each cooler will be sealed with a transportation security seal containing the
sampler's initials. The cooler will then be sealed with packing tape.
Table 3.3 presents a summary of sample collection,
preservation and shipping requirements.
3.2.5.3 Chain-of-Custody-Records
CRA chain-of-custody records will be used to track all
samples from the time of sampling to the arrival of samples at the laboratory.
Three original copies of the chain-of-custody record will accompany the
sample shipment to the laboratory and will be signed and retained by the
receiving laboratory's sample custodian. A copy of the chain-of-custody
record will be retained by the shipper. Two completed copies will be returned
to CRA by the laboratory. A typical chain-of-custody form is presented on
Figure 3.2.
3.2.6 Analytical Protocols
3.2.6.1 Scope
Samples collected for chemical analysis as described in the
previous sections will be analyzed for TCL VOCs, TCL BNAs, and a select list
of PCBs and metals. Tables 3.4 and 3.5 present the TCL VOCs and TCL BNAs,
respectively. Tables 3.6 and 3.7 present the list of select PCBs and metals,
22 CONESTOGA-ROVERS & AssoaATES
Matrix
Groundwater,
Treatment
System Water
Soil Gas, SVE
Exhaust Gas
Note:
TABLE 3.3
SAMPLE COLLECTION, PRESERVATION AND SHIPPING PROTOCOL SUMMARY
JADCO-HUGHES SITE
REMEDIATION GOAL VERIFICATION PLAN
Parameter Bottles/Jars Preservatives Holding Time (1) Shipping
TCLVOCs - 3 x 40-ml glass -iced to 4 °C (±2°C) -14 days -Federal Express
septum vials -preserved with Priority 1
four drops of HCI
topH<2
TCLBNAs - 2 x I-litre amber glass -iced to 4°C (±2°C) - 7 days until -Federal Express
bottle extraction, Priority 1
40 days after
extraction
TCLPCBs - 2 x I-litre amber glass -iced to 4°C (±2°C) - 7 days until -Federal Express
bottle extraction, Priority 1
40 days after
extraction
Select List -500-ml polyethylene -iced to 4 °C (±2°C) - 6 months -Federal Express
Metals bottle -preserved with 50% Priority 1
HNO3topH<2
TCLVOCs -Summa® canister -none -30 days -Federal Express
Priority 1
(1) Sample holding time will be calculated from the time of sample collection to sample analysis.
CRA 3669(19)
Packaging
-Cooler, Cushioning
(i.e. bubble pack,
foam)
-Cooler, Cushioning
(i.e. bubble pack,
foam)
-Cooler, Cushioning
(i.e. bubble pack,
foam)
-Cooler, Cushioning
(i.e. bubble pack,
foam)
-packing carton
CRA
CHAIN OF CUSTODY RECORD
CRA SHIPPED TO (Laboratory Name): REFERENCE NUMBER:
CONESTOGA-ROVERS & ASSOCIATES
651 Colby Drive
Waterloo, Ont. N2V 1 C2 1519188-4-0510
SAMPLER'S PRINTED
lslGNATURE: NAME:
SEO DAT£ TIME SAMPLE No, No.
TOTAL NUMBER OF CONTAINERS
RELINQUISHED BY: DATE:
(i) TIME:
I ~UNOUISHED BY: DATE:
TIME:
I ~UNOUISHED BY: DATE:
TIME:
METHOD OF SHIPMENT:
White -Fully Executed Copy SAMPLE TEAM:
Yellow -Receiving laboratory Copy
Pink -Shipper Copy
Goldenrod Sampler Copy
Vl
PA~REMARKS
... f!j
Oz -~ SAMPLE Oz
TYPE Zo u
.
HEALTH CHEMICAL HAZARDS T
~CEIVED BY: DATE:
TIME:
~CEIVED BY: DATE:
TIME:
~CEIVED BY: DATE:
TIME:
WAY BILL No.
RECEIVED FOR LABORATORY BY:
DATE: TIME:
figure 3.2
CHAIN OF CUSTODY FORM
JADCO-HUGHES SITE
Gaston County, NC
3669 (19) JAN 13/94(W) REV.O (F-03)
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TABLE 3.4
TCLVOCs
REMEDIAL ACTION
JADCO-HUGHES SITE
REMEDIATION GOAL VERIFICATION PLAN
CAS No.
71-55-6
79-34-5
79-00-5
75-34-3
75-35-4
78-87-5
591-78-6
108-10-1
107-06-2
156-60-5
67-64-1
71-43-2
75-27-4
75-25-2
74-83-9
78-93-3
75-15-0
56-23-5
108-90-7
75-00-3
67-66-3
74-87-3
10061-01-5
124-48-1
100-41-4
75-09-2
108-42-5
127-18-4
108-88-3
1330-20-7
10061-02-6
71-01-6
75-01-4
Compound
1, 1, 1-trichloroethane
1, 1,2,2-tetrachloroethane
1,1,2-trichloroethane
1, 1-dichloroethane
1, 1-dichloroethene
1,2-dichloropropane
2-hexanone
4-methyl-2-pentanone
1,2-dichloroethane
1,2-dichloroethene (total)
acetone
benzene
bromodichloromethane
bromoform
bromomethane
butanone
carbon disulfide
carbon tetrachloride
chlorobenzene
chloroethane
chloroform
chloromethane
cis-1,3-dichloropropene
dibromochloromethane
ethyl benzene
methylene chloride
styrene
tetrachloroethene
toluene
total xylenes
trans-1,3-dichloropropene
trichloroethene
vinyl chloride
TCL -Target Compound List
VOCs -Volatile Organic Compounds
CAS -Chemical Abstract Service
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TABLE 3.5
TCL BNAs
REMEDIAL ACTION
JADCO-HUGHES SITE
REMEDIATION GOAL VERIFICATION PLAN
CAS No.
120-82-1
95-50-1
541-73-1
106-46-7
95-95-4
88-06-2
120-83-2
105-67-9
51-28-5
121-14-2
606-20-2
91-58-7
95-57-8
91-57-6
95-48-7
88-74-4
88-75-5
91-94-1
99-09-2
534-52-1
101-55-3
59-50-7
106-47-8
7005-72-3
106-44-5
100-01-6
100-02-7
83-32-9
208-96-8
120-12-7
56-55-3
50-32-8
205-99-2
191-24-2
207-08-9
111-91-1
111-44-4
Compound
1,2,4-trichlorobenzene
1,2-dichlorobenzene
1,3-dichlorobenzene
1,4-dichlorobenzene
2,4,5-trichlorophenol
2,4,6-trichlorophenol
2,4-dichlorophenol
2,4-dimethylphenol
2,4-dini trophenol
2,4-dini trotol uene
2,6-dinitrotoluene
2-chloronaphthalene
2-chlorophenol
2-methylnaphthalene
2-methylphenol
2-nitroaniline
2-nitrophenol
3 ,3' -dichlorobenzidine
3-ni troaniline
4,6-dini tro-2-meth ylphenol
4-bromophenyl phenyl ether
4-chloro-3-meth y 1 phenol
4-chloroaniline
4-chlorophenyl phenyl ether
4-methylphenol
4-nitroaniline
4-ni trophenol
acenaphthene
acenaphthylene
anthracene
benzo(a)anthracene
benzo(a)pyrene
benzo(b )fl uoran thene
benzo(g,h,i)perylene
benzo(k) fl uor an thene
bis(2-chloroethoxy)methane
bis(2-chloroethyl)ether
8
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Page2of2
TABLE 3.5
TCL BNAs
REMEDIAL ACTION
JADCO-HUGHES SITE
REMEDIATION GOAL VERIFICATION PLAN
CAS No.
39638-32-9
117-81-7
85-68-7
86-74-8
218-01-9
84-74-2
117-84-0
53-70-3
132-64-9
84-66-2
131-11-3
206-44-0
86-73-7
118-74-1
87-68-3
77-47-4
67-72-1
193-39-5
78-59-1
621-64-7
86-30-6
91-20-3
98-95-3
87-86-5
85-01-8
108-95-2
129-00-0
Compound
bis(2-chloroisopropyl)ether
bis(2-ethylhexyl)phthalate
butylbenzylphthalate
carbazole
chrysene
di-n-bu tylph thalate
di-n-octyl phthalate
dibenz(a,h)anthracene
dibenzofuran
diethyl phthalate
dimethylphthalate
fluoranthene
fluorene
hexachlorobenzene
hexachlorobutadiene
hexachlorocyclopentadiene
hexachloroethane
indeno( 1,2,3-cd)pyrene
isophorone
N-nitroso-di-n-dipropylamine
N-nitrosodiphenylamine
naphthalene
nitrobenzene
pen tachlorophenol
phenanthrene
phenol
pyrene
TCL -Target Compound List
BNAs -Base, Neutral and Acid Extractable Compounds
CAS -Chemical Abstract Service
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TABLE 3.6
PCBs
JADCO-HUGHES SITE
REMEDIATION GOAL VERIFICATION PLAN
CAS No.
11141-16-5
12672-29-6
Compound
Aroclor-1232
Aroclor-1248
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TABLE 3.7
INORGANIC ANALITES
JADCO-HUGHES SITE
REMEDIATION GOAL VERIFICATION PLAN
CAS No.
7440-38-2
7440-43-9
7440-47-3
7439-92-1
7440-02-0
Inorganic Compound
arsenic
cadmium
chromium
lead
nickel
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3669 09)
respectively. These metals were selected from the list of analytes in the
Remedial Investigation and pre-RD database, based upon the frequency of
detection in groundwater samples from the on-Site monitoring wells.
Analytical work will be completed using approved USEPA
methodologies as specified in the following sections.
3.2.6.2 Sample Analysis
Samples collected for chemical analysis will be analyzed
using approved analytical methods as outlined in the RGV QAPP. Practical
Quantification Limits (PQLs) for water and gas matrices are also presented in
the RGV QAPP. PQLs are highly matrix dependent, thus, the PQLs are
provided for guidance and may not always be achievable.
3.2.6.3 Data Quality Assessment
The laboratory data assessment will be conducted by the
laboratory quality assurance officer, who will review data and identify results
where additional work is required. This additional work may take the form
of re-analysis or resampling and analysis.
Internal quality control tests will be conducted by the
laboratory in accordance with their standard operating procedures and the
individual method requirements.
· The CRA data assessment is carried out by the CRA
Quality Assurance Officer-Analytical Activities to evaluate the quality and
utility of the data, as a level of quality assurance beyond that provided by the
laboratory. The analytical data will be evaluated based on criteria outlined in
the RGV QAPP.
The quality and acceptability or unacceptability of the data
will be determined following the reporting of the laboratory analysis. The
23 CONESTOGA-ROVERS & ASSOOATFS
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data will be examined for the acceptability of trip blanks, rinsate samples, field
duplicate samples, percent recoveries of MS/MSD analyses, surrogate
compounds and control samples. In the event that data are deemed
unacceptable, a decision will be made by CRA regarding the appropriate
corrective action. The corrective action may include resampling, re-analysis
or data qualification.
3.2.6.4 Reporting
CRA will document sampling and analytical activities in
the periodic progress report under "Analytical Data". The information will
include:
• sample code;
• analysis requested;
• specific samples which were split with USEPA;
• the anticipated date of preliminary data;
• the expected date of verified data; and
• analytical date received.
3.3 WASTE MATERIAL HANDLING
Purge water and decontamination fluids will be collected
and discharged into the groundwater treatment system for treatment prior to
discharge. Other sampling-generated wastes, including personal protective
equipment, will be containerized on Site in labeled or marked containers and
disposed of periodically.
3.4 ON-SITE HEAL TH AND SAFETY PLAN
The sampling plan described in Section 3.0 involves the
collection of gas, treated water and groundwater samples at the Jadco-Hughes
24 C0NESTOCA·R0VERS & ASS0OATES
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366909)
Site in Gaston County, North Carolina. During the·program personnel may
come in contact with materials that contain VOCs, BNAs and PCBs.
During the program, provisions for health and safety will
be implemented which are designed to ensure:
1) Personnel working on Site are not adversely exposed to Site
contaminants;
2) The health and safety of the general public and the environment is not
compromised by off-Site migration of contaminated materials; and
3) Compliance with applicable governmental and non-governmental
(American Conference of Governmental Industrial Hygienists)
regulations and guidelines.
The Health and Safety Plan under which work under this
RGV Plan will be completed is presented in the EPA-approved document
entitled "Health and Safety Plan, Remedial Design Work Plan, Submittal A,
Jadco-Hughes Site, Gaston County, North Carolina" (CRA, 1991).
25 CONESTOGA-ROVERS&: ASSOOATFS
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3669 09)
RGV QUALITY ASSURANCE PROTECT PLAN (OAPP)
4.1 INTRODUCTION
Procedures presented within this document will be used
for sample collection and laboratory analyses in support of the RA. This RGV
QAPP is consistent with "Environmental Compliance Branch Standard
Operating Procedures and Quality Assurance Manual", USEPA Region IV,
February 1, 1991 and "Laboratory Operating and Quality Control Manual",
USEPA Region IV, September 1990.
CRA's project management team and technical resource
personnel for this project are described in Section 16.0 of the RA Work Plan.
The Steering Committee has contracted analytical services to ENSECO
Laboratories, as discussed in the RA Work Plan. ENSECO's key project
personnel are listed below:
Project Manager -Pat Mclsaac (ENSECO)
-Ensures all laboratory resources are available on an as-required basis
-Overviews final analytical report
-Oversees all laboratory's activities
Operations Managers -Steven D. Harris (Air Toxics)
and Gary Tort (Rocky Mountain)
-Coordinate laboratory analyses
-Supervises in-house chain-of-custody
-Schedule sample analyses
-Oversees data review
-Prepares analytical reports
-Approves final analytical reports prior to submission to CRA.
Quality Assurance Officers
-Overview laboratory quality assurance
26 C0NESTOCA·R0VERS & ASS0OATFS
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-Overview QA/QC documentation
-Conduct detailed data review
-Decide laboratory corrective actions, if required
-Technical representation of laboratory QA procedures
Sample Custodians
-Receive and inspect the incoming sample containers
-Record the condition of the incoming sample containers
-Sign appropriate documents
-Verify chain-of-custody and its correctness
-Notify laboratory manager and laboratory supervisor of sample receipt and
inspection
Assign a unique identification number and customer number and enter
each into the sample receiving log
-Initiate sample transfers to appropriate lab sections with the help of the
laboratory manager
-Control and monitor access/ storage of samples and extracts
4.2 QUALITY ASSURANCE OBJECTIVES FOR
MEASUREMENT DAT A
The overall QA objective is to develop and implement
procedures for field sampling, chain-of-custody, laboratory analyses and
reporting which provide accurate and precise data. Specific procedures to be
used for sampling, chain-of-custody, calibration, laboratory analysis,
reporting, quality control, audits, preventive maintenance and corrective
actions are presented in other sections of this RGV QAPP.
Data quality objectives (DQO) have been established in
accordance with the USEPA guidance document entitled "Data Quality
Objectives for Remedial Response Activities," EPA/540/G-87 /003,
March 1987, dated March 25, 1986, to ensure that the database developed
during the Site investigation meets the objectives and quality necessary for its
27 CONESTOGA-ROVERS & ASSOOATES
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intended use, namely, evaluation of the success of the RA system in
achieving the remediation goals.
DQOs can be classified for measurement data by defining
the level of analytical support assigned to each type of measurement data. In
general, water and soil gas analyses will require level III analytical support.
The level III sqpport for the analyses will require that all
organics and inorganics are analyzed using SW-846, Third Edition, Final
Update, July 1992 (SW-846) methods.
Level III analytical results will be used for remedial action
purposes. Precision and accuracy data derived from Level III techniques (i.e.
SW-846 methods) has historically proven to be acceptable for remediation
use. This level of quality adequately served the data needs during the RI/FS
process, and would yield results that are comparable to the RI/FS during
remediation activities. The data will be used to monitor the effectiveness of
the remediation.
The deliverables required for Level III analytical data
packages are presented in Section 4.7. These deliverables are considered by .
CRA to be acceptable for validation of the precision and accuracy of the data.
Laboratory quality control procedures for this level of data
are presented in Section 4.8. The quality control samples to be collected are
presented in Table 4.1.
Field screening activities such as determining of pH,
specific conductance, temperature and the total VOC concentration in air
using a PID will require Level I analytical support.
The use of the analytical support levels defined above will
ensure that the overall objectives for the RA will be met.
28 CONESTOGA-ROVERS & ASSOOATES
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Sample
TABLE4.1
SUMMARY OF SAMPLING AND ANALYSIS PROGRAM (1)
JADCO-HUGHES SITE
REMEDIATION GOAL VERIFICATION PLAN
Qua Ii~ Assurance Same_les (2)
Field Laboratory Field Trip MS/
Matrix Parameters Parameters Duplicates Rinsate Blanks (3) MSD (4) (5)
Groundwater,
Treatment System
Water
Soil Gas (6)
SVE Gas (6)
Notes:
pH, voes
Conductivity BNAs
Temperature Select Metals
Select PCBs
Atmospheric voes
Pressure,
Temperature
PID voes
1 1 1
1 1 0
1 1 0
1 1 0
1
1
(1) Table 3.1 of the RGV SAP lists the Monitoring Summary. Table 4.1 lists the necessary QA/QC:.
samples per sampling event.
1
1
1
1
(2) Entries reflect number of QA samples per ten samples or number of QA samples per day of sampling
events.
(3) Trip blank samples are used when aqueous VOC samples arc collected.
(4) Matrix spike/matrix spike duplicate sample.
(5) Entries reflect number of QA samples per 20 samples.
(6) MS/MSD Samples are replaced with duplicate and spiked analyses. Spike compounds will be added
using a cryogenic trap by the laboratory.
TCL -Target Compound List
voe -Volatile Organic Compounds
BNA -Base, Neutral and Acid Extractable Compounds
PCBs -Polychlorinated biphenyls
PIO -Photoionization Detector
CRA 3669 09)
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4.2.1 Level of OA Effort
To assess the quality of data resulting from the field
sampling program, field duplicate samples, rinsate samples (bailer rinse, etc.)
trip blank samples, and matrix spike/matrix spike duplicate (MS/MSD)
samples will be taken (where appropriate see Table 3.2) and submitted to the
analytical laboratory.
For field samples which are collected, field duplicate
samples will be collected at a frequency of 1 per 10 or at least one per day of
sampling activity. One matrix spike/matrix spike duplicate (MS/MSD)
sample will be analyzed per 20 investigative samples per matrix, excluding
soil gas and SVE exhaust gas. One MS and one duplicate will be performed
per 20 investigative samples in the laboratory, for soil gas and SVE exhaust
gas samples.
Rinsate blank samples will be submitted at a frequency of
1 per 10 well purgings/sampling equipment cleanings or at least once per day
of well purging/sampling equipment cleanings (when sampling equipment
such as bailers are used). Rinsate blanks will be collected by routing
deionized, distilled water through decontaminated sampling equipment.
Trip blank samples for voe analyses (prepared by the
laboratory and consisting of organic-free water poured into the sample vials)
will be shipped with each shipment container of voe sample vials by the
laboratory. Trip blanks samples will be handled in a manner consistent with
actual field sample handling and will be shipped back to the laboratory each
day with the daily field samples. The trip blanks samples will provide a
measure of potential cross contamination of samples during shipment and
handling. Trip blanks will not be opened in the field.
Blank samples will be analyzed to check procedural
contamination and/or ambient conditions and/or sample container
contamination that may be responsible for sample contamination.
29 CONESTOGA-ROVERS & ASSOCIATES
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If blank samples are found to contain any of the target
analytes, the following procedure will be followed. First, contamination will
be verified by examining the associated investigative samples and laboratory's
method blanks. The data will then be examined to determine the extent of
contamination and all associated data will be qualified according to the data
validation guidelines given in Section 4.7.
Field duplicate samples will be analyzed to check for
sampling and matrix heterogeneity. Field duplicate samples are to be used as
a measure of precision throughout the sampling event. Comparison of field
duplicate samples will be based upon the detected target analytes and the
relative percent differences (RPD) of each analyte's concentrations. The
parameters which do not meet the criteria may only be used as qualitative
measurements. Professional judgment shall determine the RPD limits on a
sample-to-sample basis.
The sampling and analysis program is summarized in
Table 4.1, which lists the specific parameters to be measured, the number and
frequency of sampling and the level of QA effort required for each matrix.
4.2.2 Accuracy. Sensitivity and Precision of Analysis
The fundamental QA objective with respect to the
accuracy, sensitivity, and precision of analytical data is to achieve the QC
acceptance criteria of each analytical protocol. The sensitivities required for
these organic and inorganic analyses will be at least the targeted quantitation
limits listed in Tables 4.2 through 4.4. These tables present targeted
quantitation limits for all target analytes. Lower method quantitation limits,
if achieved by the laboratory, will be substituted for the targeted quantitation
limits in the final report.
30 CONESTOGA-ROVERS & ASSOOATES
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TABLE4.2
TARGETED QUANTIT A TION UMrrs1.
ANALYTICAL METHODS OF ANALYSIS AND
MATRIX SPIKE/MATRIX SPIKE DUPLICATE ANALYSES
RECOVERY CONTROL LIMITS FOR ORGANIC ANALYSES
JADCO-HUGHES SITE
REMEDIATION GOAL VERIFICATION PLAN
Targeted Ouantitation Umtts
W,:iter
. MSIMSD 2Recovery
Control Limtts3.
Compound Cas No.
VOLATILE ORGANIC COMPOUNDS
Analytical Method4: 8240
1,1,1-trichloroethane 71-55-6
1,1,2,2-tetrachloroethane 78-34-5
1, 1,2-trichloroethane 79-00-5
1, 1-dichloroethane 75-34-3
1, 1-<lichloroethene 75-35-4
1,2-dichloroethane 107-06-2
1,2-dichloroethene (total) 40-59-0
1,2-<lichloropropane 78-87-5
2-hexanone 591-78-6
4-methyl-2-pentanone 108-10-1
acetone 67-64-1
benzene 71-43-2
bromodichloromethane 75-27-4
bromoform 75-25-2
bromomethane 74-83-9
butanone 78-93-3
carbon disulfide 75-15-0
carbon tetrachloride 56-23-5
chlorobcnzcne 108-90-7
chloroethane 75-00-3
chloroform 67-66-3
chloromethane 74-87-3
ds-1,3-<I ichloropropene 10061-01-5
dibromochloromethane 124-48-1
ethylbenzene 100-41-4
methylene chloride 75-09-2
styrene 100-42-5
tetrachloroethene 127-18-4
toluene 108-88-3
trans-1,3-<I ichloropropene 10061-02-6
trichloroethene 79-01-6
vinyl chloride 75-01-4
xylenes (total) 1330-20-7
CRA 3669 (19)
(µg/L)
5
5
5
5
5
5
5
5
10
10
10
5
5
5
10
10
5
5
5
10
5
10
5
5
5
5
5
5
5
5
5
2
5
Water
61-145(14)
76-127(11)
75-130(13)
76-125(13)
71-120(14)
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TABLE4.2
TARGETED QUANTITATION UMrrs1,
ANALYTICAL METHODS OF ANALYSIS AND
MA TRIX SPJKFJMA TRIX SPIKE DUPLJCA TE ANALYSES
RECOVERY CONTROL LIMITS FOR ORGANIC ANALYSES
JADCQ.HUGHES SITE
REMEDIATION GOAL VERIFICATION PLAN
Cas No.
Tar.geted Ouantitation Umtt,
WRter
(µg/L)
BASE, NEUTRAL AND ACID EXTRACTABLE COMPOUNDS
Analytical Method4: 8270
Extraction Method: 3520 (Water)
1,2,4-trichlorobenzene 120-82-1 10
1,2-dichlorobenzene 95-50-1 10
1,3-dichlorobenzene 541-73-1 10
1,4-dichlorobcnzene 106-46-7 10
2,4,5-trichlorophenol 95-95-4 50
2,4,6-trichlorophenol 88-06-2 10
2,4-dichlorophenol 120-83-2 10
2,4-dimethylphcnol 105-67-9 10
2,4-dinitrophenol 51-28-5 50
2,4.Jinitrotoluene 121-14-2 10
2,6-d.initrotoluene 606-20-2 10
2-chloronaphthalene 91-58-7 10
2-chlorophenol 95-57-8 10
2-methylnaphthalene 91-57-6 10
2-mcthylphenol 95-48-7 10
2-nitroaniline 88-74-4 so
2-nitrophenol 88-75-5 10
3,3'-dichlorobenzidine 91-94-1 20
3-nitroaniline 99-09-2 so
4,6-dinitro-2-methylphcnol 534-52-1 50
4-bromophenylphenylether 101-55-3 10
4-chloro-3-methylphcnol
4-chloroaniline 106-47-8 10
4-chlorophcnylphenylether 7005-72-3 10
4-methyl phenol 106-44-5 10
4-nitroaniline 100-01~ so
4-nitrophenol 100-02-7 so
acenaphthene 83-32-9 10
acenaphthylene 208-96-8 10
anthracene 120-12-7 10
benzo(a)anthracene 56-55-3 10
benzo(a)pyrene 50-32-8 10
benzo(b)fluoranthene 205-99-2 10
benzo(g,h,i)perylene 191-24-2 10
benzo(k)fluoranthene 207-08-9 10
bis(2-chloroethoxy)methane 111-91-1 10
bis(2-chloroethyl)ether 111-44-4 10
bis(2-chloroisopropyl)ether 108-60-1 10
bis(2-ethylhexyl)phthalate 117-81-7 10
butylbenzylphthalate 85~8-7 10
carbazole 86-74-8 10
chrysene 218-01-9 10
OlA.366909)
MSIMSD 2Recove,y
Control Limit.ii
Water
39-98(28)
36-97(28)
24-96(38)
24-96(38)
27-123(40)
10-80(50)
46-118(31)
Page 2of 4
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Compound
TABLE4.2
TARGETED QUANTIT A TION UMrrs1,
ANALYTICAL METHODS OF ANALYSIS AND
MA TRIX SPIKE/MA TRIX SPIKE DUPLICATE ANALYSES
RECOVERY CONTROL LIMITS FOR ORGANIC ANALYSES
JADCO-HUGHES SITE
REMEDIATION GOAL VERIFICATION PLAN
Cas No.
Targeted Ouantitation Limits
Water
(µg/L)
BASE, NEUTRAL AND ACID EXTRACTABLE COMPOUNDS
di-n-butyl phthalate
di-n-octylphthalate
dibenzo(a,h)anthracene
dibenzofuran
diethylphthalate
dimethylphthalate
fluoranthene
fluorene
hexachlorobenzene
hexachlorobutadiene
hexachlorocyclopentadiene
hexachloroethane
indeno(l,2,3-cd)pyrene
isophorone
n-nitroso-di-n-dipropylamine
n-nitrosodiphenylamine
naphthalene
nitrobenzene
(pa,a-chloro-meta-cresol)
pentachlorophenol
phenanthrene
phenol
pyrcne
84-74-2
117-84-0
53-70-3
132-64-9
84-66-2
131-11-3
206-44-0
86-73-7
118-74-1
87-68-3
77-47-4
67-72-1
193-39-5
78-59-1
621-64-7
86-30-6
92-20-3
98-95-3
59-50-7
87-86-5
85-01-8
108-95-2
129-00-0
JO
JO
JO
JO
JO
JO
JO
JO
JO
JO
JO
JO
10
JO
JO
10
JO
JO
JO
so
JO
JO
JO
POLYCHLORINATED BIPHENYLS
I Analytical Method4: 8080
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Aroclor-1232
Aroclor-1248
CRA 3669 (19)
11141-16-5
12672-29-6
1.0
1.0
MSIMSD 2Recovery
P,ntml Umttsl
Water
41-116(38)
23-97(42)
9-103(50)
12-110(42)
26-127(31)
Page3of 4
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TABLE 4.2
TARGETED QUANTITATION UMJTS1,
ANALYTICAL METHODS OF ANALYSIS AND
MA TRIX SPIKF/MA TRIX SPIKE DUPLICATE ANALYSES
RECOVERY CONTROL LIMITS FOR ORGANIC ANALYSES
JADCO-HUGHES SITE
REMEDIATION GOAL VERIFICA TJON PLAN
Page 4of 4
1. Quantitation limits are provided for guidance purposes only as they may not always be technically achievable due to such
factors as elevated analyte concentrations, which would require sample dilution and matrix interferences. In these cases,
the laboratory quantitation limits will be submitted for the quantitation detection limits in accordance with the method(s)
protocols.
2. MS/MSD -Matrix Spike/Matrix Spike Duplicate.
3. Values in parenthesis indicate maximum acceptable relative percent differences (RPD) between duplicate spike analyses.
4. 'Test Methods for Evaluating Solid Waste Physical/Chemical Methods", USEPA SW-846, Third Edition, Final Update,
July 1992.
CRA36611(19)
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TABLE4.3
TARGETED QUANTITATION UMITS1,
ANALYTICAL METIIOD OF ANALYSIS AND
MA TRIX SPIKE/MA TRIX SPIKE DUPLICATE ANALYSES
RECOVERY CONTROL UMITS FOR INORGANIC ANALYSES
JADCO-HUGHES SITE
REMEDIATION GOAL VERIFICATION PLAN
Cas No.
Targeted Ouantitation Limits
Water
(µg/1)
MSIMSv2 Recovery
Control Limits3
Water
SELECT LIST METALS
Analytical Method 4: 6010/7000 Series
arsenic
cadmium
chromium
lead
nickel
Notes:
7440-38-2
7440-43-9
7440-47-3
7439-92-1
7440-02-0
10
5
10
5
40
75-125 (20)
75-125 (20)
75-125 (20)
75-125 (20)
75-125 (20)
1. Quantitation limits are provided for guidance purposes only as they may not always be technically
achievable due to such factors as elevated analyte concentrations, which would require sample
dilution and matrix interferences. In these cases, the laboratory quantitation limits will be
submitted for the quantitation limits in accordance with the method(s) protocols.
2. MS/MSD -Matrix Spike/Matrix Spike Duplicate. Spike and duplicate analyses may be used in
place of MS/MSD analyses.
3. Values in parenthesis indicate maximum acceptable relative percent differences (RPO) between
duplicatee analyses.
4. "Test Methods for Evaluating Solid Waste Physical/Chemical Methods", USEPA SW-846, Third
Edition, Final Update, July 1992.
CRA.366909)
0
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TABLE4.4
TARGETED QUANTITATIONLIMITS1 AND
ANALYTICAL METHODS FOR GAS SAMPLES
JADCO-HUGHES SITE
REMEDIATION GOAL VERIFICATION PLAN
Cas No.
Targeted Quantitation
Limits (ppb; v/v)
VOLATILE ORGANIC COMPOUNDS
Analytical Method2 TO-14
1,1, I-trichloroethane
1, 1,2,2-tetrachloroethane
1, 1,2-trichloroethane
1,1-dichloroethane
I, 1-dichloroethene
1,2-dichloroethene (total)
1,2-dichloroethane
1,2-dichloropropane
2-hexanone
4-met hyl-2-pen tanone
acetone
benzene
bromodichloromethane
bromoform
l:iromomethane
butanone
carbon disulfide
carbon tetrachloride
chlorobenzene
chloroethane
chloroform
chloromethane
cis-1,3-dichloropropene
dibromochloromethane
ethyl benzene
methylene chloride
styrene
tetrachloroethene
toluene
lrans-1,3-dichloropropene
trichloroethene
vinyl chloride
xylenes (total)
Notes:
71-55-6 2
78-34-5 4
79-00-5 3
75-34-3 2.5
75-35-4 2
40-59-0 6
107-06-2 2
78-87-5 8
591-78-6 5
108-10-1 3
67-64-1 10
71-43-2 3
75-27-4 2
75-25-2 2
74-83-9 3
78-93-3 3
75-15-0 10
56-23-5 2
108-90-7 2.5
75-00-3 5
67-66-3 2
74-87-3 2.5
10061-01-5 3
124-48-1 2
100-41-4 2.5
75-09-2 4
100-42-5 7
127-18-4 3
108-88-3 3
10061-02-6 3
79-01-6 2.5
75-01-4 2.5
1330-20-7 5
1. Quantitation limits are provided for guidance purposes only as they may not always be technically
achievable due to such factors as elevated analyte concentrations, which would require sample
dilution and matrix interferences. In these cases, the laboratory quantitation limits will be
submitted for the quantitation limits in accordance with the method(s) protocols.
2. "Supplement to EPA/600/4-84/041: Compendum of Methods for the Determination of Toxic Organic
Compounds in Ambient Air", EPA/600/487 /006, September 1986.
CRA366909)
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4.2.3 Completeness, Representativeness and Comparability
It is expected that analyses conducted in accordance with
USEPA methods will provide data meeting QC acceptance criteria for
80 percent of all samples tested. Any reasons for variances from this
80 percent acceptance will be documented. Corrective actions that will be
taken if the completeness goals are not met are described in Section 4.12 of
this RGV QAPP.
The RGV sampling program has been designed to provide
data representative of Site conditions. During development of these
networks, consideration was given to the limited information regarding past
disposal practices, existing data from past studies completed for the Site,
remedial activities to date and physical setting. The extent to which existing
and planned analytical data will be comparable depends on the similarity of
sampling and analytical methods. The procedures used to obtain the planned
analytical data are documented in this RGV QAPP. However, it may be
necessary to verify similar documentation for previous analytical data to
adequately establish comparability. Comparability of laboratory analyses will
be ensured by the use of consistent units. Following completion of data
collection (during the RA), the existing database will be evaluated for
representativeness.
4.2.4 Field Measurements
Measurement data will be generated in many field
activities. These activities include, but are not limited to, the following:
i) documenting time and weather conditions;
ii) determining pH, specific conductivity and temperature of water
samples;
iii)
iv)
v)
determining depths in a well;
verifying well development and presampling purge volumes;
measuring groundwater elevations in wells; and
31 CONESTOGA-ROVERS & AsSOOATES
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3(,69 09)
vi) measuring total VOC concentrations of SVE system effluent using a
PID.
The general QA objective for such measurement data is to
obtain reproducible and comparable measurements to a degree of accuracy
consistent with the use of standardized procedures.
4.3 SAMPLING PROCEDURES
The procedures and protocols for collecting samples and
for performing all related field activities are described in detail in the RGV
SAP (Section 3.0).
4.4 SAMPLE CUSTODY AND DOCUMENT CONTROL
This section details the procedures and protocols which
must be followed for the transport of samples from the Site.
4.1.1 Field Custody Procedures
Once samples are collected and placed in a cooler, limited
access will be enforced by keeping coolers in sight or restricting access to the
coolers (i.e. locking coolers in field office or vehicle).
4.4.2 Sample Labels
Sample labels will include sample number, place of
collection and date and time of collection. Corrections will require a single
line drawn through the incorrect entry above. Figure 4.1 shows a typical
sample jar label. Samples will be placed in the shipping cooler immediately
after collection.
32 CONESTOGA-ROVERS & AsSOCIATF.S
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C RA Consulting Engineers
CONESTOGA-ROVERS & ASSOCIATES LIMITED
JOB NAME: ------------
JOB NO: _____ DATE: _____ _
LOCATION: ------------
REMARKS: ------------
NOTES:
1) SAMPLE LABELS Will BE FIRMLY AFFIXED
TO SAMPLE CONTAINERS
2) All SAMPLE LABELS Will BE COMPLETED
USING WATER INSOLUBLE INK
figure 4.1
TYPICAL SAMPLE LABEL
JADCO-HUGHES SITE
Goston County, NC
3669 (19) JAN 13/94 (W) REV. 0
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4.4.3 Chain-of-Custody
Each cooler being shipped to ENSECO will contain a
chain-of-custody form. Figure 4.2 shows a typical chain-of-custody form
consisting of four copies which are distributed to the shipper, the receiving
laboratory, the CRA laboratory and the CRA office file. Each sample number
of each sample shipped will be recorded on the sheet. The shipper will
maintain his copy while the other three copies are enclosed in a waterproof
envelope within the cooler with the samples. The container will then be
sealed for shipment. The laboratory, upon receiving the samples, will
complete the three remaining copies .. The laboratory will maintain one copy
for their records. One copy will be returned to CRA upon receipt of the
samples by the laboratory. One copy will be returned to CRA with the data
deliverables package.
Upon receipt of the container at the laboratory, the
container will be inspected by the designated sample custodian. The
condition of the container will be noted on the chain-of-custody record sheet
by the sample custodian. The sample custodian will document the date and
time of receipt of.the container and sign the form.
If damage or discrepancies are noticed, it will be recorded
in the remarks column of the record sheet, dated and signed. Damage or
discrepancies will be reported to the laboratory supervisor who will inform
the lab manager and QA officer. The laboratory QA officer will then notify
the CRA QA Officer -Analytical Activities.
4.4.4 Sample Documentation In The Laboratory
The sample custodian will assign a unique number to
each incoming sample for use in the laboratory. The unique number and
customer number will then be entered into the laboratory information
management system and in the project file. The laboratory date of receipt will
also be noted.
33 CONESTOGA-ROVERS & ASSOCIATES
CRA
CHAIN OF CUSTODY RECORD
CRA SHIPPED TO (Laboratory Nome): REFERENCE NUMBER:
CONESTOGA-ROVERS &: ASSOCIATES
651 Colby Drive
Waterloo, Ont. N2V 1C2 /519)88-4-0510
SAMPLER'S PRINTED
!SIGNATURE: NAME:
SEQ DATE TIME SAMPLE No. No.
TOTAL NUMBER or CONTAINERS
. AAUNQUISHEO BY: DATE:
TIME:
· ~UNQUISHED BY: DATE:
TIME:
~UNQUISHED BY: DATE:
TIME:
METHOD or SHIPMENT:
Wlille -Fully Executed Copy SAIAPLE TEAM:
Yellow -Receiving Laboratory Copy
Pink -Shipper Copy
Goldenrod Sampler Copy
V>
PA:w~REMARKS
.... "' o\i!
SAMPLE -~ Oz
TYPE Zo u
-
HEALTH CHEMICAL HAZARDS I
I ~CEIVED BY: iiATE:
TIME:
~CEIVED BY: 11ATE:
TIME:
~CEIVED BY: nATE:
TIME:
WAY BILL No.
RECEIVED FOR LABORATORY BY:
DATE: TIME:
figure · 4.2
CHAIN OF CUSTODY FORM
JADCO-HUGHES SITE
Gaston County, NC
3669 (19) JAN 13/94(W) REV.O (F-04)
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ENSECO will be responsible for maintaining analytical log
books and laboratory data, as well as sample (on hand) inventory for
submittal to CRA on an "as required" basis. Samples will be maintained by
the laboratory for a period of 30 days following CRA's receipt of the respective
sample data under the conditions prescribed by the appropriate USEP A
methods for additional analyses, if necessary. Raw laboratory data files will be
inventoried and maintained by ENSECO for a period of five years at which
time CRA will advise ENSECO regarding the need for additional storage.
Laboratory custody procedures are documented in detail
in Attachment B-1 of the RD Work Plan.
4.4.5 Storage of Samples
After the sample custodian has prepared the log book, the
chain-of-custody will be checked to ensure that all samples are stored in the
appropriate locations. All water samples will be stored within an access
controlled location and will be maintained at 4°C, ±2°C until completion of
all analytical work, but in any event for at least 30 days. Gas samples will be
stored at 25°C, ±2°C.
4.4.6 Sample Documentation -CRA
Evidentiary files for the entire project will be inventoried
and maintained by CRA and will consist of the following:
-Project Plan;
-Project Logbooks;
-Field Data Records;
-Sample Identification Documents;
-Chain-of-Custody Records;
-Analytical Data Packages;
-Correspondence;
34 C0NESTOCA-R0VERS & ASS0OATES
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3669 09)
-Report Notes, Calculations, etc.;
-References, Literature;
-Miscellaneous -photos, maps, drawings, etc.; and
-Reports.
The evidentiary file materials will be the responsibility of
the evidentiary file custodian with respect to maintenance and document
removal. Stephen Quigley will be the evidentiary file custodian.
4.5 CALIBRATION PROCEDURES AND FREQUENCY
The procedures indicated below will be performed for 1
samples delivered for analysis to ENSECO. Specific instructions relevant to a
particular type of analysis are given in the pertinent analytical procedures for
this project, and are referenced in Section 4.6 and Tables 4.2 through 4.4.
Quality control data and records produced from
calibration will be retained by the laboratory and will be made available to
CRA on an "as required" basis.
The following specific analytical quality control
procedures are related to each analytical batch.
4.5.1 Laboratory Instrument Performance
Prior to initiating analyses, the laboratory must establish
that all instruments will meet required specifications.
4.5.1.1 Organic Analyses
The following requirements will be applied to those
samples analyzed by gas chromatography (GC) and gas chromatography /mass
spectrom~try (GC/MS). The calibration of each of these instruments will be
35 CONESTOGA-ROVERS & ASS0OATES
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verified at frequencies specified in ENSECO's SOPs, which are provided in the
RD Work Plan in Attachment B-2. Where appropriate, a new standard curve
may be prepared as specified in the SOPs.
4.5.2 Laboratory Calibration
Prior to analysis, instruments will be calibrated using
standard procedures for organics and metal analyses. Calibration procedures
are detailed in ENSECO's SOPs.
4.5.2.1 Calibration Check
Method mandated compounds will be used to check
calibration of the instrument being used. A calibration check will be
conducted prior to any batch analysis. Calibration check procedures are
detailed in ENSECO's SOPs.
4.5.3 Field Instrument Calibration
Calibrating field instruments will be done prior to
collecting each water sample if well purging data indicate a change
(>±10 percent) in pH and/or conductivity from the last location sampled.
Calibration will be conducted at least daily during groundwater sampling.
The field equipment will be maintained, calibrated and operated in a manner
consistent with the manufacturer's guidelines and USEPA standard methods.
However, since the majority of field measurements will
be limited to pH, conductivity, temperature, depth (water level) and total
VOC concen_trations of SVE system effluent, the following procedures will be
observed.
36 CONESTOGA-ROVERS & AsSOCIATES
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4.5.3.1 pH Meter
The pH meter will be calibrated with commercially
obtained pH 4, 7 and 10 buffer solutions. The pH calibration will be
temperature compensated and will be performed immediately before
initiating a sampling event. Calibration checks will be performed with every
sample collected. In the event that the result fails to be within 0.1 pH units,
the meter must be recalibrated and all samples after the last calibration must
be remeasured.
Calibration will be performed in accordance with the
following procedure:
1. rinse the probe in deionized water;
2. insert probe in a fresh pH 7 buffer solution;
3. slide battery compartment cover back to the first stop, exposing the
adjustment potentiometers;
4. adjust the "CAL" potentiometer such that the display reads 70;
5. remove the probe; rinse in deionized water;
6. insert probe in a fresh pH 4 or pH 10 buffer solution;
7. adjust the slope potentiometer until the correct pH is displayed; and
8. remove probe; rinse in deionized water.
4.5.3.2 Conductivity Meter
The specific conductivity meter is factory calibrated, but
the calibration should be checked periodically and the probe thoroughly
rinsed between samples. Calibrating the specific conductivity meter will be
performed as follows:
1.
2.
3.
4.
rinse probe in deionized water;
wipe probe and allow to dry, the conductivity displayed should be zero
in air;
adjust the zero potentiometer if necessary;
immerse the probe in a solution of known conductivity;
37 CONESTOGA-ROVERS & ASSOOATES
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5. adjust the "SPAN" potentiometer such that the correct conductivity is
displayed; and
6. rinse probes thoroughly with deionized water and allow to dry.
4.5.3.3 HNu Meter
Calibration checks will be performed in accordance with
the following procedures:
1. Connect the analyzer to the regulator and cylinder with a short piece
(butt connection) of tubing. The calibration gas in the cylinder consists
of a mixture of isobutylene and zero air. Isobutylene is non-toxic and
safe to use in confined areas. There are no listed worker exposure
levels.
It is important that the tubing be clean since contaminated tubing will
affect the calibration reading. Do not use the cylinder below 30 pounds
per square inch gauge (psig), as a reading below that level can deviate
up to ten percent from the rated value.
Safely discard the disposable cylinder when empty. Do no refill this
cylinder.
2. Set SPAN and function switches at the same positions as listed in the,
Application Data Sheet or Calibration Report. Open the valve on the
cylinder until a steady reading is obtained. If the reading is the same as
the recorded data, the analyzer calibration for the original species of
interest is still correct.
3. If the reading has changed, adjust the SP AN setting until the reading is
the same.
4. Shut off the cylinder as soon as the reading is established.
5. Record and maintain this new SP AN setting.
38 CONESTOCA·ROVERS & ASSOCIATES
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4.6 ANALYTICAL PROCEDURES
This section presents the analytical methods which will be
employed by ENSECO to complete required analyses.
4.6.1 Overview
Groundwater and treatment system water will be analyzed
according to SW-846, third edition, Revision I methods presented in
Tables 4.2 and 4.3. Soil gas and SVE exhaust gas samples will be analyzed
using USEPA Method TO-14. SVE system effluent will be measured for total
VOC by continuous PID measurements in the field.
4.6.2 Identification
Identification of all targeted analytes will be accomplished
with an authentic standard of the analyte.
For gas chromatographic determinations of specific
analytes, the relative retention time of the unknown will be compared with
that of an authentic standard. Since a true identification using GC is not
possible, an analytical run for compound confirmation will be performed
according to the specifications in the methods. Peaks must elute within daily
retention time windows established for each indicator parameter to be
declared a tentative or confirmed identification. Retention time windows are
determined via a standard 72-hour study defined in each method. Results of
the study are to be filed in the laboratory and available for inspection during a
QC audit.
For GC/MS determinations of specific analytes, the
spectrum of the analyte will conform to a literature representation of the
spectrum or to a spectrum of the authentic standard obtained after satisfactory
39 CONESTOCA-ROVERS & Asso□ATF.5
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tuning of the mass spectrometer. The appropriate analytical methods will be
consulted for specific criteria for matching the mass spectra, relative response
factors, and relative retention times to those of authentic standards.
4.6.3 Quantification
The procedures for quantification of analytes are discussed
in the appropriate ENSECO SOPs.
4.6.4 Detection Limit and Quantification Limit
The methods used will have quantitation limits or
CRQLs/CRDLs that are consistent with the appropriate USEPA methods.
The targeted quantitation limits are presented on
Tables 4.2 through 4.4. Specific quantitation limits are highly matrix
dependent. The quantitation limits are provided for guidance and may not
always be technically achievable.
4.7 DATA REDUCTION, VALIDATION ASSESSMENT
AND REPORTING
ENSECO will perform analytical data reduction and
validation in-house under the. direction of the laboratory QA officer. The
laboratory QA officer will be responsible for assessing data quality and
advising CRA's QA Officer -Analytical Activities of any data which were
rated "preliminary" or "unacceptable" or other qualifications. Figure 4.3
illustrates the analytical data flow through the laboratory. Data reduction,
validation and reporting by the laboratory will be conducted as detailed in the
SOPs provided in the RD Work Plan, Attachment B-3.
The analytical data packages will contain a summary of
the following:
40 CONESTOGA-ROVERS & ASSOOATES
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Samples received by
sample custodian, logged
in, worksheets generated
for each parameter
group ond transmitted
to lob supervisor
Semple preporction
Semple onolyses
Dato processed and
transcribed onto
worksheets by onclyst
N
y
Worksheets transferred
to independent analyst
for review
N
3669 (19) JAN 13/94(W) REV.O {C-06)
N
Loborotory QA/QC
officer completes a
thorough inspection
of one in ten reports.
All reports, however,
reviewed for completeness
N
y
Final report generation
N
y
Final report to QA/QC
officer end lob manager
for approval
Report
figure 4.3
ANALYTICAL DATA FLOW
ANALYTICAL SUBCONTRACTOR
JADCO-HUGHES SITE
Gaston County, NC
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1.
2.
3.
4.
5.
6.
7.
8.
9.
case narrative that includes summary of analytical methods used and
description of any unusual action or conditions;
laboratory sample results;
dates of sample receipt, preparation and analysis;
method blank sample analysis summary;
surrogate and matrix spike recovery (if applicable) data and control
limits;
check sample data and control limits;
dilution factors identified (as required);
practical quantitation limits (PQL) for each method; and
executed chain-of-custody forms.
Calibration data, raw chromatograms/spectra and
necessary instrument tuning results of required analyses will be retained by
the project laboratory until certificate of completion has been issued, and will
be available on request for necessary review.
CRA QA/QC Officer -Analytical Activities will conduct
an evaluation of data reduction and reporting by the laboratory. These
evaluations will consider items 1 through 9 listed above as well as field
QA/QC results (i.e. rinsate blanks, trip blanks, field duplicate). The data
packages will be checked for legibility, completeness, correctness and the
presence of requisite dates, initials and signatures. The results of these checks
will be assessed and reported to the CRA project manager noting
discrepancies and their effect upon the acceptability of the data. Information
garnered for QA/QC checks will be discussed in the periodic data report.
Validation of the analytical data will be performed by the
CRA QA/QC Officer -Analytical Activities based on the QC criteria outlined
in "National Functional Guidelines for Organic Data Review," December 1990
(Revised June 1991) and "Laboratory Data Validation Functional Guidelines
for Evaluating Inorganics Analyses," July 1988 validation guidance
documents. The laboratory data packages (including items 1 through 9 and
field QA/QC results) will be assessed in accordance with the criteria outlined
in the validation guidance documents .. The results of these data validations
41 CONESTOGA-ROVERS & AsSOCIATES
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will be reported to the CRA project managers, noting any field, laboratory or
matrix concerns and the effect(s) of the concern(s) on the acceptability of the
data.
Raw data from field measurements and sample collection
activities that are used in the project reports will be appropriately identified
and appended to the report. Where data have been reduced or summarized,
the method of reduction will be documented in the report. In addition, field
data will be audited for anomalously high or low values that may appear to be
inconsistent with other data.
4.8 INTERNAL QUALITY CONTROL CHECKS
AND FREQUENCY
4.8.1 Field QC
Quality control procedures for field measurements will be
limited to checking the reproducibility of the measurement in the field by
obtaining multiple readings and by calibrating the instruments (where
appropriate).
Field quality control will involve collecting field duplicate
and rinsate samples in accordance with the applicable procedures described in
the RGV SAP (Section 3.0).
4.8.2 Laboratory QC
Specific procedures related to internal laboratory QC
samples (namely, matrix spikes, surrogate spikes, blanks, QC check samples
and matrix spike duplicates) are detailed in the following subsections.
42 CONESTOGA-ROVERS & ASSOOATES
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4.8.2.1 Method Blank Samples
A method blank sample will be analyzed by the laboratory
at a frequency of one per twenty analyses or at least one per batch. The
method blank sample, an aliquot of analyte-free water (for aqueous samples)
or reagent-grade air (for soil gas or SVE exhaust gas samples), will be carried
through the entire analytical procedure. For organic analyses, the
concentration of target analytes in the blank must be below the Quantitation
Limits listed in Table 4.2. An exception will be made for common laboratory
contaminants (methylene chloride, acetone, 2-butanone, and phthalate esters)
which may be present in the blank at up to five times the Quantitation Limit
and still be considered acceptable.
For metals and cyanide analyses, the concentration of the
target analytes in the blank must be below two times the Quantitation Limit.
If the blank value of a target analyte lies below the Quantitation Limit, the
analyte is reported with no flag on the associated sample data. If the blank
value lies between the Quantitation Limit and two times the Quantitation
Limit, the analyte in the associated samples is flagged to indicate
contamination was present in the blank. A blank containing an analyte(s)
above two times the Reporting Limit is considered unacceptable unless the
lowest concentration of the analyte in the associated samples is at least ten
times the blank concentration or the concentration of the analyte in all
samples associated with the blank is below the detection limit.
4.8.2.2 Matrix Spike/Matrix Spike Duplicates (MS/MSD) Analyses
MS/MSD analyses will be analyzed at a frequency of 1 in
20 for each method per matrix, excluding gas. For metals , spiked and
duplicate analyses will be used in place of MS/MSD analyses. Acceptable
compounds that will be used for matrix spikes are identified in the methods
listed in Tables 4.2 to 4.4. Percent spike recoveries will be used to evaluate
analytical accuracy while percent relative standard deviation or percent
difference between the spike and matrix spike duplicate recoveries will be
used to assess analytical precision.
CONESTOGA-ROVERS & ASSOOATES
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For soil gas and SVE exhaust gas analyses, one duplicate
and one spike analysis will be performed per batch by the laboratory. Table 4.4
presents acceptability criteria for these analyses.
4.8.2.3 Surrogate Compounds
Surrogate compounds are used in all organic analyses,
excluding gas samples. Every blank, standard and environmental sample,
including MS/MSD samples, will be spiked with surrogate compounds prior
to purging VOC or extracting BNA and PCB.
Surrogate compounds will be spiked into samples
according to the appropriate analytical methods. Surrogate compound
recoveries will fall within the control limits set by procedures specific in the
method for analytes falling within the quantification limits without dilution.
Diluting samples to bring the analyte concentration into the linear range of
calibration may dilute the surrogates below the quantification limit;
assessment of analytical quality in these cases will be based on the quality
control embodied in the check and MS/MSD samples.
Table 4.5 presents a summary of the surrogate recovery
control limits as stated within the analytical methods.
4.8.2.4 Laboratory Control Samples
Laboratory control samples are used to assess method
accuracy. The analytes contained in control samples will be a representative
subset of the target analytes. Percent recoveries shall be within limits
specified by the laboratory or corrective actions will be taken as per the project
laboratory's SOP provided in Attachment B-2 of the RD Work Plan.
44 CONESTOGA-ROVERS & ASSOOATES
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TABLE4.5
SURROGATE COMPOUND PERCENT RECOVERY LIMITS
JADCO-HUGHES SITE
REMEDIATION GOAL VERIFICATION PLAN
Volatile Organic Compounds
toluene-d8
bromofluorobenzene
1,2-dichloroethane-d4
Base/Neutral and Acids
nitrobenzene-d5
2-fluorobiphenyl
terphenyl-d14
pheno!-d5
2-fluorophenol
2,4,6-tribromophenol
2-chlorophenol-d4 (1)
1,2-dichlorobenzene-d4 (1)
Polychlorinated Biphenyl Compounds
tetrachloro-m-xylene
decachlorobiphenyl
CRA366909)
Percent Recoveries
Water
88-110
86-115
76-114
35-114
43-116
33-141
10-110
21-110
10-123
33-110
16-110
60-150
60-150
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4.9 PERFORMANCE AND SYSTEM AUDITS AND FREQUENCY
For the purpose of external evaluation, performance
evaluation check samples from the USEPA and various state agencies are
analyzed periodically by ENSECO.
Internally, data evaluation for these samples is done on a
continuing basis over the duration of a given project.
The CRA QA Officer -Analytical Activities may carry out
performance and/or systems audits, which include fieldwork audits, to
ensure that data of known and defensible quality are consistently produced
during a program.
System audits are qualitative evaluations of all
components of field and laboratory quality control measurement systems.
They determine if the measurement systems are being used appropriately.
The audits may be carried out before all systems are operational, during the
program, or after the completion of the program. Such audits typically
involve a comparison of the activities given in the QA/QC plan described
herein, with activities actually scheduled or performed. A special type of
system audit is the data management audit. This audit addresses only data
collection and management activities.
The performance audit is a quantitative evaluation of the
measurement system used for a monitoring program. It requires testing the
measurement systems with samples of known composition or behavior to
evaluate precision and accuracy. A performance/system audit may be carried
out by or under the auspices of the USEP A Region IV Environmental
Services Division, without the knowledge of the analyst during each
sampling event for this program. The scheduling of performance evaluation
(PE) audits will be at the discretion of the USEP A.
In addition, one external QA audit may be conducted by
CRA prior to analysis of any investigatory samples. It should be noted,
however, that any additional external QA audits will only be performed if
45 CONESTOGA·ROVERS & ASSOClATES
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3(,69 (19)
deemed necessary by either the Steering Committee or CRA project managers
or the CRA QA officers. The project laboratory may also undergo PE audit(s)
by the USEP A, if so requested.
4.10 PREVENTIVE MAINTENANCE
Analytical instruments to be used in this project will be
serviced by ENSECO personnel at regularly scheduled intervals in accordance
with the manufacturer's recommendations. Instruments may also be
serviced at other times due to failure. Requisite servicing beyond the abilities
of ENSECO personnel will be performed by the equipment manufacturer or
their designated representative.
Daily checks of each instrument will be by the analyst
responsible for that instrument. These daily checks will include changing GC
inlet liners, GC/MS instrument checks, checking operation of data systems,
checking for leaks, etc. Manufacturer's recommended procedures will be
followed in every case.
The HNu, pH and conductivity meters will be calibrated
in the field as described in Section 4.5.3. In addition, the following preventive
maintenance measures will be taken in the field:
HNu -The HNu meter is sent annually to the manufacturer
for recalibration and cleaning.
pH, Conductivity -Keep probes clean and free of dirt by rinsing with
deionized water.
-Keep deionized water around probes to prevent
dehydration.
Water Level Tape -Clean probe and lower three feet of tape with pesticide
grade isopropanol and deionized water to prevent hard
water and iron build up.
46 CONESTOGA-ROVERS & Asso□ATES
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4.11 SPECIFIC ROUTINE PROCEDURES USED TO ASSESS
DATA PRECISION, ACCURACY AND COMPLETENESS
4.11.1 QA Measurement Quality Indicators
4.11.1.1 Precision
Precision will be assessed by comparing the analytical
results between MS/MSD analyses and/or duplicate sample analyses.
Precision will be reported to the USEP A through data validation memos
which are attached to the analytical reports.
4.11.1.2 Accuracy
Accuracy will be assessed by comparing a set of analytical
results to the accepted, or "true", values that would be expected. In general, :
surrogate, MS/MSD analyses and check sample recoveries will be used to
assess accuracy. Accuracy will be reported to the USEPA through data
validation memos which are attached to the analytical reports.
4.11.1.3 Outliers
Procedures discussed previously will be followed for
documenting deviations from established control limits. In the event a result
deviates significantly from established control limits, this deviation will be
noted and its effect on the quality of the remaining data assessed and
documented.
47 CONESTOCA-ROVERS & ASSOOATF.S
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4.12 CORRECTIVE ACTION
The need for corrective action may be identified by system
or performance audits or by standard QC procedures. The essential steps in
the corrective action system will be:
checking the predetermined limits for data acceptability beyond which
corrective action is required;
-identifying and defining problems;
-assigning responsibility for investigating the problem;
-investigating and determining the cause of the problem;
-determining corrective action to eliminate the problem (this may include
reanalyses of resampling and analyses);
assigning and accepting responsibility for implementing the corrective
action;
-implementing the corrective action and evaluating the effectiveness;
-verifying that the corrective action has eliminated the problem; and
documenting the corrective action taken.
For each measurement system, the CRA QA Officer
-Analytical Activities will be responsible for initiating the corrective action
and the laboratory supervisor will be responsible for implementing the
corrective action. The corrective action taken will depend upon the QA/QC
criteria that did not meet the necessary criteria, and may range form
qualifying the data to resampling at the Site.
4.13 QUALITY ASSURANCE REPORT TO MANAGEMENT
Management will receive reports on the performance of
the measurement system and the data quality, following each sampling
round and at the conclusion of the report.
Minimally, these reports will include:
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3669 09)
-assessment of measurement and quality indicators(Le. data accuracy,
precision and completeness);
-results of performance audits;
-results of system audits; and
-QA problems and recommended solutions.
The CRA QA Officer -Analytical Activities will be
responsible within the organizational structure for preparing these periodic
reports. Periodic reports for the project will also include a separate QA section
which will summarize data quality information contained in the periodic
QA/QC reports to management, and details and overall data assessment and
validation in accordance with the data quality objectives outlined in this RGV
QAPP.
49 CONESTOGA-ROVERS & ASSOCIATES
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REPORTING
An annual report is required to be submitted by the UAO
(Section XIV) by July 24 of each year. This reporting requirement has, prior to
the initiation cif the RA, been met by the content of the monthly progress
reports. After the RA construction has been completed, these annual reports
will be submitted to USEPA to document activities selected for the RGV Plan
implementation, and other activities at the Site.
The periodic progress reports required by the UAO will
summarize the field activities completed in the previous reporting period.
The annual report will present and assess data collected in the previous year.
50 CONESTOGA-ROVERS & AssoaATES
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REFERENCES
2.
3.
4.
5.
6.
7.
"Environmental Compliance Branch Standard Operating Procedures
and Quality Assurance Manual", USEPA Region IV, February 1, 1991.
"Laboratory Operating and Quality Control Manual", USEPA
Region IV, September 1990.
"Data Quality Objectives for Remedial Response Activities",
USEPA/540/G-87 /003, March 1987.
"Test Methods for Evaluating Solid Waste Physical/Chemical
Methods", USEPA SW-846, Third Edition, Final Update, July 1992.
"Supplement of EPA/600/4-84/041: Compendium of Methods for the
Determination of Toxic Organic Compounds in Ambient Air",
USEPA/600/487 /006, September 1986.
"Remedial Design Work Plan, Jadco-Hughes Site, Gaston County,
North Carolina", CRA, 1992.
"Remedial Action Work Plan, Jadco-Hughes Site, Gaston County,
North Carolina", CRA, 1994. ·
51 CONESTOGA-ROVERS & Asso□ATES