NCD003446721_20090701_Celeanse Corporation - Shelby Fiber_FRBCERCLA SAP QAPP_Work Plan and Field Sampling Plan for Supplemental Investigation and Long-Term Groundwater Monitoring - Final-OCR

Work Plan and Field Sampling Plan for
Supplemental Investigation and Long-
Term Groundwater Monitoring
Final
Celanese Fibers Operations Site Shelby
North Carolina •
Prepared for:
CNA Holdings, Inc.
1601 W. LBJ Freeway, Dallas, TX 75234
AECOM, Inc.
July 2009
AECOM Project No. 79750
Document No.: 0262S8-XXX
FINAL
WORK PLAN AND
FIELD SAMPLING PLAN
FOR
SUPPLEMENTAL INVESTIGATION
AND LONG-TERM GROUNDWATER MONITORING
CELANESE FIBERS OPERATIONS
SHELBY, NORTH CAROLINA
DOCUMENT CONTROL NO. 0262SB-xxx
Everett W. Glover, Jr. P .E.
Project Manager
J.l!jyMat-Bll 2009
Prepared for:
CNA HOLDINGS, INC.
Prepared by:
AECOM
AECOM Project No. 79750
Bryon Dahlgren
Project Engineer
Jeff Peterman
Project Geologist
CONTENTS
Section Page No.
CNA HOLDINGS, INC .................................................................................................................... 1
LIST OF FIGURES .................................................................................................................... )YVII
LIST OF TABLES ...................................................................................................................... )YVII
LIST OF APPENDICES ............................................................................................................. )YVII
PART I -WORK PLAN .................................................................................................................. 1
1.9 INTRODUCTION ................................................................................................................. 1
1.1 OBJECTIVES .......................................................................................................... 1
1.2 PROJECTTEAM ..................................................................................................... 2
1.2.1 AECOM Employees ..................................................................................... 2
1.2.2 Subcontractor -Laboratory ......................................................................... 2
1.2.3 Subcontractor -Drilling .. _ . .. ................................................................ 3
1.2.4 Surveyor.. .. .......................................................... 3
1.3 PROJECT DOCUMENTS. .. ............................ 3
2.0 HEALTH AND SAFETY ...................................................................................................... 5
2.1 PERSONAL PROTECTIVE EQUIPMENT.. ........................................................... 5
2.2 TRAINING ................................................................................................................ 5
3.0 GRUB AREA DIRECT PUSH TECHNOLOGY (DPT) INVESTIGATION .......................... 6
3.1 DPT SOIL AND GROUNDWATER SAMPLING ..................................................... 6
3.2 DPT SOIL AND GROUNDWATER SAMPLE ANALYSIS .................................... 9
3.3 QUALITY CONTROL (QC) SAMPLES.. . .......... 9
3.3.1 Submittal of laboratory samples ................................................................. 9
3.4 LABORATORY REQUIREMENTS. . .......... 9
4.0 MONITORING WELL INSTALLATION, DEVELOPMENT, AND SAMPLING ................ 10
4.1 MONITORING WELL INSTALLATION AND CONSTRUCTION .......................... 10
4.2 MONITORING WELL DEVELOPMENT... ........................................................... 10
4.3 MONITORING WELL SAMPLING.. . ..................... 10
4.4 ASSESSMENT OF TCE AND OFF-SITE HH WELLS ......................................... 10
5.0 STREAM SAMPLING PILOT TEST-COMPLETED APRIL 2 AND 3, 2009 AND
REPORTED IN A TECHNICAL MEMORANDUM DATED MAY 12, 2009 ................................. 12
5.1 PILOT TEST OBJECTIVE ..................................................................................... 12
5.2 PROPOSED GROUNDWATER SAMPLING METHODS ................................... 12
5.2.1 Drive Point Method ................................................................................. 13
5.2.2 Hand/Power Auger or Post Hole Drive Point ........................................... 13
5.3 STREAM INVESTIGATION PILOT TEST RESULTS .......................................... 14
6.0 STREAM GAUGE INSTALLATION -COMPLETED DURING FIELD ACTIVITIES
MARCH 2009 ................................................................................................................................ 15
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7.0 GROUNOWATER MONITORING ..................................................................................... 16
7.1 WATER LEVEL MEASUREMENTS .................................................................. 16
7.2 GROUNDWATER PURGING AND SAMPLING PROCEDURES ........................ 16
7.3 GROUNDWATER SAMPLE ANALYSIS .............................................................. 16
7.4 GROUNDWATER QUALITY CONTROL (QC) SAMPLES .................................. 17
7.5 SUBMITTAL OF LABORATORY SAMPLES ...................................................... 17
7.6 LABORATORY REQUIREMENTS ....................................................................... 17
8.0 FIELD DECONTAMINATION PROCEDURES ................................................................ 18
9.0 INVESTIGATION DERIVED WASTE ............................................................................... 19
10.0 REPORTING ..................................................................................................................... 20
11.0 PROJECT SCHEDULE ..................................................................................................... 21
PART II -FIELD SAMPLING PLAN .............................................................................................. 1
1.0 INTRODUCTION ................................................................................................................. 1
2.0 GRUB AREA DIRECT PUSH TECHNOLOGY (DPT) INVESTIGATION .......................... 2
2.1 OBJECTIVES .......................................................................................................... 2
2.2 DPT SOIL AND GROUNDWATER SAMPLING .................................................... 2
2.2.1 Pre-sampling Activities ............................................................................... 2
2.2.2 DPT Soil Sampling ..................................................................................... 3
2.2.3 OPT Groundwater Sampling ..................................................................... 7
2.3 SAMPLE ANALYSIS ............................................................................................... 9
2.4 DPT BORING PLUGGING AND ABANDONMENT ............................................... 9
3.0 MONITORING WELL INSTALLATION AND CONSTRUCTION .................................... 10
3.1 OBJECTIVE ........................................................................................................... 10
3.2 MONITORING WELL INSTALLATION AND CONSTRUCTION ......................... 10
3.3 QUALITY ASSURANCE ....................................................................................... 10
3.4 WELL MATERIALS .............................................................................................. 10
3.4.1 Surface Casing ....................................................................................... 10
3.4.2 Riser ......................................................................................................... 10
3.4.3 Screen ....................................................................................................... 1 O
3.4.4 Water ........................................................................................................ 11
3.4.5 Concrete .................................................................................................... 11
3.4.6 Cement .................................................................................................... 11
3.4.7 Bentonite ................................................................................................ 11
3.4.8 Cement-bentonite Grout ........................................................................... 11
3.4.9 Neat-cement Grout.. ................... 11
3.4.10 Well Screen Filter Material ....................................................................... 11
3.4.11 Tremie Pipes ............................................................................................ 12
3.4.12 Well Head Completion ............................................................................ 12
3.5 PRE-DRILLING PREPARATION .......................................................................... 12
3.6 DECONTAMINATION OF EQUIPMENT AND DRILL RIG ................................. 12
3.7 DRILLING ........................................................................................................... 12
3.8 MONITORING WELL INSTALLATION ................................................................ 13
3.8.1 Well Screen Filter Material.. .. ........ 13
3.8.2 Bentonite Seal .......................................................................................... 13
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WP-ii July 2009
3.8.3 Grout Backfill.. . ......................................................... 13
3.8.4 Wellhead Completion .............................................................................. 13
3.8.5 Restoration ............................................................................................... 14
3.9 TEMPORARY MONITORING WELL INSTALLATION ........................................ 14
3.9.1 General... . ............................................................ 14
3.9.2 Well Riser and Screen .......................................................................... 14
3.9.3 Well Screen Filter Material.. . .................... 14
3.9.4 Bentonite Seal .......................................................................................... 14
3.9.5 Wellhead Completion ................................................................................ 14
3.9.6 Restoration ................................................................................................ 14
3.10 MONITORING WELL DEVELOPMENT ............................................................... 14
4.0 STREAM INVESTIGATION METHODOLOGY ................................................................ 16
4.1 STREAM INVESTIGATION PILOT TEST ............................................................ 16
4.2 PILOT TEST OBJECTIVE .................................................................................... 16
4.3 PROPOSED GROUNDWATER SAMPLING METHODS. . ............ 16
4.3.1 DrivePointMethod .................................................................................. 16
4.3.2 Hand/Power Auger or Post Hole Temporary Wells ................................ 17
4.4 STREAM INVESTIGATION PILOT TEST RESULTS .......................................... 18
5.0 STREAM GAUGE INSTALLATION -COMPLETED DURING MARCH 2009 FIELD
EVENT ........................................................................................................................................... 20
6.0 LONG-TERM MONITORING AND SAMPLING ............................................................... 21
6.1 FLUID LEVEL MEASUREMENT... ....................................................................... 21
6.2 MONITORING WELL PURGING AND SAMPLING ............................................. 21
6.2.1 Pre-purging.. . ..... 22
6.2.2 Monitoring Well Purging and Sampling Procedure .................................. 22
6.2.3 Former Remediation Well Purging and Sampling Procedure .................. 24
6.3 SURFACE WATER SAMPLES ............................................................................ 25
6.4 QUALITY CONTROL (QC) SAMPLES.. . ........................................................ 26
6.5 EQUIPMENT CALIBRATION.. . ....................................................................... 26
6.6 LABORATORY REQUIREMENTS .................................................................... 27
7.0 FIELD DECONTAMINATION PROCEDURES .................................................................. 1
7.1 DECONTAMINATION MATERIALS ...................................................................... 1
7.2 DISPOSAL OF CLEANING SOLUTIONS ............................................................... 1
7.3 SAFETY PROCEDURES FOR FIELD DECONTAMINATION.. . .. 1
7.4 HANDLING OF CLEANED EQUIPMENT.. ........................................................... 1
7.5 FIELD DECONTAMINATION PROCEDURES .................................................. 2
7.5.1 Sampling Equipment and Supplies ........................................................... 2
7 .5.2 Water Level Meters .................................................................................... 2
7.5.3 Submersible Pumps .................................................................................... 3
8.0 INVESTIGATION DERIVED WASTE ................................................................................. 1
8.1 TYPES OF IDW ................................................................................... 1
8.2 MANAGEMENT OF NON-HAZARDOUS IDW .................................................... 1
8.3 MANAGEMENT OF HAZARDOUS IDW ................................................................ 1
WP-iii July 200S
List of Figures
1 Proposed-DPT Sampling Locations
2 Oee:p_Proposect .. Monitoring Well Location -~ __ I_H3:$-N~w
3 Proposed-Stream Sampling Pilot Test Location§.
4 Streflm ~l'!lillifilllnvestigation Location~
-5~. ---~Prnposed .. Stream Gauge Locations
§5 Pr-oposed--Stream Gauge Schematic Drawing
7 Well Locations
P.roposed--Groundwater Sampling Location~-Map
Project Schedule
List of Tables
Table
1
2
3
Summary of Analytical Requirements
Interim anEI EJEf)amle9 Monitoring Programs
Expanded Monitoring Program
List of Appendices
Appendix A Field Forms
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PART I -WORK PLAN
NOTE: The tasks discussed in the Stream Investigation Pilot Test and Stream Gauge Installation sections of
the March 2009 Work Plan and Field Sampling Plan were completed during the review of the documents.
The sections that describe the completed tasks are identified in the section heading and italicized in this
final revision but no modifications to the text have been made. In some cases sections have been added
where a discussion of the information learned from the completed tasks Is required for understanding the
work to be completed.
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1.0 Introduction
AECOM will conduct an investigation at the Celanese Fibers Operations Site near Shelby. North
Carolina+icona-..Shelby-faGiHty to provide the United States Environmental Protection Agency (EPA or the
Agency) with additional data with respect to source area evaluation, delineation of site constituent plumes,
groundwater flow conditions, and surface water impacts. This work is intended to fulfill the data needs
identified in the Independent Design Review Report prepared by Geo Trans that were refined in a December
5 2008 site meeting_and-discus-sed-between EPA and the North Carolina Department of Environment and
Natural Resources (NCDENR) in--a .. site-+neeting-held-Oecember-5;-2-008 and refined-in subsequent
telephone conversations. Specifically, the investigation will consist of the following tasks:
collection of soil and groundwater samples using direct push technology {DPT) in the area of wells
V-23 and K-5828Jn the glycol recovery unit bottoms (GRUB) area
installation of aA-addit-iG-Aat deep8f monitoring well near well cluster!le-St 11-40/11-65
periormance of a pilot test to evaluate a method to collect groundwater samples along Stream C
below the dam of the recreation pond to its confluence with Stream A_ 1• (task completed)
installation of additional stream gauges along Stream A and Stream C..=(task ccompleted)
Additionally, semi-annual groundwater monitoring will be completed under the monitoring portion of the site
response under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA)
Record of Decision (ROD). During late 2009 and early 2010 the monitoring program will be expanded for
two semi-annual events to include additional characterization monitoring for diethylene gjoxide (DEDO,
commonly known as 1 4-dioxane}, ethylene glycol, aRO-volatile organic compounds (VOCs} including
trichloroethene (TCE).....illlQ_semi-volatile organic compounds (SVOCs) including DOWTHERMT,...._withand
tentatively identified compounds (TICs). The long-term monitoring plan will be developed after review and
evaluation of the data developed by the interim sampling event in March 2009 and the data developed by
this work plan.
The remainder of this work plan summarizes the procedures that will be used to collect and assure the
quality of the data generated during the supplemental investigation and long-term monitoring events.
1.1 Objectives
The objectives of the individual tasks periormed during the supplemental investigation and long-term
monitoring events are provided belowin-the-following-sections.
Direct Push Technology (DPT) Investigation
Evaluate if sources ~of ethylene glycol and dieUly-le~DEDO are present in the glycol
resovery-uoit-boUoms-(GRUB} area in the vicinity of monitoring wells K-68-l!!_and V-23.
If source areas are identified-d-ur-intH-he-DP-:f-in1JesHgation, delineate their horizontal and vertical
extents so plans for source area removal/control can be developed, lf.apprnpria~e.
Monitoring Well Installation
1 Three unnamed tributaries to Buffalo Creek drain the site and have been identified as Streams A, 8, and
C. Steam A flows north to south and traverses the eastern portion of the property; Stream 8 flows west to
east and is located north of the GRUB area: and Stream C flows east-southeast from the recreation/fire
water pond. Streams 8 and C contribute their flow to Stream A.
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Install an additional monitoring well near well clusternest 11-40/11-65 in an effort to delineate
~DEDO at depth, and better understand flow conditions (vertical gradients) in the
vicinity of the well cluster.
Stream Sampling Pilot Test /task completed).
Evaluate the methodology to collect samples representative of groundwater discharge along Stream
C from the dam of the recreation pond to its confluence with Stream A. The selected method, along
with surface water sampling, will be used to evaluate discharge of diethylene--mideDEDO to the
stream.
Stream Gauge Installation (task completed).
• Install additional stream gauges along Stream A and Steam C to provide water elevation data for
use in contouring of the shallow groundwater and adjacent streams and creeks_-,
Groundwater Monitoring and Sampling
•_Perform groundwater monitoring and sampling events in support of the CERCLA monitoring
requirements for the site and collect additional data on_-DEDO ethylene glycol, TCE and
SVOCsoiethylene-oxideD-EDO.
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1.2 Project Team
AECOM will provide the majority of the site personnel for completion worl•dorQf this Scope of Work..
Additionally, subcontractors will be used to supply field support and specialty services. Sections 1.2.1
through 1.2.3 provide details of the anticipated project team.
1.2.1 AECOM Employees
The anticipated AECOM proj~ct team and their responsibilities are as follows:
Everett W. Glover, Jr. PE -Project Manager
Bryon Dahlgren -Project Engineer
Mark. Kromis -Quality Assurance Manager
Harold McDaniels -Corporate Health and Safety Officer
Jeff Peterman -Site Manager/Site Health and Safety Officer
Matt Sammons -Field Support
Jack. Keene -Field Support
Don Israel, RLS -Surveying Lead
1.2.2 Subcontractor-Laboratory
Davis and Floyd, Incorporated (Davis & Floyd) is the primary laboratory for this project. The point of contact
(POC) for questions regarding laboratory issues is John McCord (Davis & Floyd). Questions regarding
laboratory procedures, analyses, or shipping should initially be directed to Mr. McCord.
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Laboratory samples will be submitted directly to Davis & Floyd under chain-of-custody. The AECOM POC
on the chain-of-custody is Bryon Dahlgren. The address and telephone number for Davis & Floyd is·
Davis & Floyd
816 East Durst Avenue
Greenwood, South Carolina 29649
Telephone: [phone]
1.2.3 Subcontractor-Drilling
The DPT and monitoring well installation will be performed by A.E. Drilling Services, LLC (A.E. Drilling). The
POC for A.E. Drilling is Bill Barnes. Questions regarding drilling should be directed to Mr. Barnes. The
address and telephone numbers for A.E. Drilling are as follows:
A.E. Drilling Services, Inc.
Two United Way
Greenville, South Carolina 29607
Telephone: [phone]
Fax: [phone]
The oversight of the $learn !nveslig_ati9n__groundwater s~mpJin.9 will be_ perfqrme(l _by __ ,A.E.Dril!iQ.9_or Geo Lab.
lncorpm:ated(O~o LabL The POC for A.E._Orilling_ is pJovided_abov~. The_PO_C_for Geo Lab is Brian
Strickland. Questions reaardin_g drilling__should be directed to Mr. Strick.,land. The_address and tel@bone
numbers for Geo Lab are as follows:
Geo Lab
PO Box 1169 I Dacula, GA
Telephone: [phone]
Fax: [phone]
1.2.4 Surveyor
AECOM personnel will survey the DPT, monitoring well, stream sampling points, and stream gauge
horizontal and vertical locations. The horizontal locations will be referenced to North Carolina State Plane
Coordinates. The POC for the surveying will be Don Israel. Questions regarding surveying should be
directed to Mr. Israel at the following address and telephone number:
AECOM
3333 Regency Parkway, Suite 120
Cary NC 27518+04--Geqrnrate CeAtef-Dfi~te--4-7-5
Raleigh,_~JeFtA CareliAa 27607
Telephone: 919.256&10460.6895
1.3 Project Documents
The project documents that have been generated in support of the Work Plan for Supplemental
Investigation and Long-term Monitoring are:
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Field Sampling Plan (FSP) for Supplemental Investigation and Long-Term Groundwater Monitoring,
Celanese Fiber Operations, Shelby, North Carolina, J!!!yi=-ebruafy 2009
Quality Assurance Project Plan (QAPP) for Supplemental Investigation and Long-Term
Groundwater Monitoring, Celanese Fiber Operations, Shelby, North Carolina, ~ry-2-00QJ!!!y
2009
Health and Safety Plan (HASP) for Supplemental Investigation and Long-Term Groundwater
Monitoring, Celanese Fiber Operations, Shelby, North Carolina, J!!!yi=-ebruafy 2009
The FSP is included as Part II of this document. The QAPP and HASP are under separate cover: however,
all of these documents are required to be on site during field activities.
In the event a discrepancy is found in these documents, the order of precedence of the documents is:
1. Work Plan
2. FSP
3. QAPP
4. HASP
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2.0 Health and Safety
The HASP, dated J.!!!y_February 2009, has been reviewed and approved with respect to the field activities
required to complete this Work Plan. Field personnel will have access to a copy of the HASP during field
activities. Personnel working at the site will be required to read, understand, and conform to the
requirements of the HASP. As site activities progress, the HASP will be updated, as necessary, to ensure
compliance with OSHA regulations and safe working conditions.
The site manager/site health and safety officer will conduct daily safety meetings. Notes of the meetings will
be recorded on the Site Safety Meeting Form that is included in Section 9 of the HASP and referenced in a
field notebook.
2.1 Personal Protective Equipment
Level D Personal Protective Equipment (PPE) will be required during site field activities. Level D PPE for
this site includes the following:
standard work clothes (long pants required)
hardhat
safety glasses
steel-toed boots
ear protection (as required)
gloves (as required)
high visibility safety vest (as required)
2.2 Training
In compliance with 29 CFR 1910.120, field personnel must be able to document they have completed a 40-
hour course in Hazardous Waste Operations and Emergency Response, and 8-hour refresher courses, as
needed. In addition, all site personnel will be required to complete site-specific training for the Celanese
Fibers Operations siteTicona faGility.
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3.0 Grub Area Direct Push Technology (DPT) Investigation
A DPT investigation will be performed in response to the request for additional information from the Agency
regarding potential sources in the GRUB areaarea--of-monito~ing-wells-V-23-and-K-582-8-lo. The work will
address-the-following:
evaluate if there are.::/10Hpot6: proximate-to-the•ji_GRUB material area that-are-contributing to the
elevated concentrations of dielhylene exideDEDO and ethylene glycol in monitoring wells V-23 and
K-8%£§;
delineate'the horizontal and vertical extent of Giettly-leA&-0-xideDEDO and ethylene glycol...'.'hot
spols.a::·if-found, in soil if present and evaluate their localized impact on groundwater· and
evaluate the adequacy of existing wells to monitor the diethy-lene--ox-ideDEDO and ethylene glycol
plumes in these areas~
3.1 DPT Soil and Groundwater Sampling
DPT borings will be installed on an approximately a gs-foot 0f-5-mailei:-grid adjacent to monitoring wells K-
f58 and V-23. The layout of the sampling grid and the teAtaltve-initial sampling locations proximate to
monitoring wells K-5&-g_§_and V-23 and in upgradient background areas are shown on Figure 1. A reference
grid will be surveyed before the investigation. The location of the borings will be measured from the
surveyed grid. The boring locations and temporary monitoring wells if needed will be surveyed after the
DPT installation is completed. It should be noted that tThe initial sampling interval is set-at.2550 feet,
however this but-.!I!i!YWtl! be reduced,as-needed, to better evaluateidenHfy the extent of potential source
material if presenl•identHled.
Installation of the borings will be prioritized to gather preliminary information in the background area and in
the most likely upgradient areas-,md-in-the-backgroond-aFe-a. The A-table--that-pFOYides-tha-phases of the
DPT investigation ~is provided in the following tablebelow.
A reference grid will-be-suFVeyed before 1he-myes-tigation, The-looation-of-the .. borings--wm be--rne.Jsured-frorn
the-surveye-0 grid,
lnvestlaation Phase
Phase I
GRUB Area Investigation
Backqround lnvestiqation
Phase II
GRUB Area Investigation -
Initial Investigation
Phase Ill
GRUB Area Investigation -
Delineation
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Phase Descriotion
Install DPT background points at grid locations 09 and C19 (Figure 1).
Install DPT points at the following grid locations (Figure 1 ).
K-28 Qrid locations: LB, L7, LB, L9, L10, MB, M7, MB, M9, M10, and P5
V-23 arid locations: 115,116,117, 118, J15, J16, J17,and M15
If GRUB material is observed in the Phase I or II DPT locations, additional
DPT borings will be installed at adjacent grjd locations to delineate the
horizontal and vertical extent. Delineation will be considered complete
when the:
DPT location with GRUB material has been bracketed on the sampling
grid with a northerly, southerly easterly, and westerly "clean boring" (i.e.
-no GRUB material)
DPT location with ethvlene alvcol field screenina results greater than
1-6 July 2009
S..lt"'1]s'8,yon 0,>hl!]r,,n\Oer"'-tvPIDron F1nr,J WP 1"1<1 OAP-'
detection has been bracketed on the sampling grid with a northerly,
southerly easterly, and westerly ~clean boring" {i.e. -field screening
results less than detection of the ethylene glycol field screening).
The locations of these DPT points will be determined by field geologist and
oroiecl team based on the results of the Phase I and II borinas.
During DPT boring installation, 5-foot continuous soil samplers will be advanced from a depth of
approximately .3_2-feet below ground surface (bgs), to allow for hand auger utility clearance, to a depth of
approximately 1 to 2 feet above the anticipated groundwater surface. Based on recent water level data, the
depth to groundwater in K-68-2.§..and V-23 is assumed to be approximately 2Q-l-and--1-7,.fe-et--bgs;
res-pecHvety~.
The soils from each 5-foqt continuous in--.eaoh .. sampler will be first screened using a photo-ionization
detector {PIO). The PlD screening results will then-be used to select the intervallfil from the boring for
ethylene glycol field screening.additional-testing-, The intervalW with the highest P1D concentration_(.§} will
be field screened using a--heated--f1eadspace-method-aAd-a--gas---delector--tube--for-ethy~ne-glycol
Q.b..~.!Il~J.(ig13_~gty_col® glycol __ .(i;,.§ .... ?.t_t.1yl§!_l_~_g[y_~9.U.Ji~_l.9_J_!:?_§_t_is_i_t. Based on the results of the fl§lr;L§..QC©.~ .. o.i.og
healed-headspace-analysis--and visual observations of .the_spil_s, the field geologist will determine if a sample
for laboratory analysis will be collected. The soil field screerJlng wil!._pJQCeed tc,_gr_QIJJl.9.Wa_t_e.r·.
A groundwater sample will be collected through the OPT screen point sampler or a temporary monitoring
well and analyzed for DEDO and ethylene glycol. Groundwater samples will be collected approximately 5
feet below the top of the groundwater surface. Based on the assumed water levels the maximum DPT
depth is anticipated to be approximately 25 feet bqs. Depending on the depth to water qroundWater
samples will be collected through the DPT rods using small-diameter bailers or a peristaltic pump, The
procedure for installation of the DPT borings is included as Part I! {FSP) Section 2 and the task hazard
analysis that will be followed during the DPT installation is included in Appendix A of the HASP. During DPT
soil and groundwater sampling the field geologist will document the sample collection in the field notebook.
Temporary 1-inch diameter piezometers will generally be placed in the DPT boreholes to allow the field
team to collect data for creating a local water table map for evaluation. and to supplement the water level
measurements obtained from the permanent monitoring wells. These temporary piezometers will be
abandoned prior to completion of the field program. If sampling groundwater through the DPT rods proves
impractical these piezometers will also be used to collect groundwater samples.
Based on the results of the laboratory analysis additional DPT borings may be required to delineate the
horizontal and vertical extents of the GRUB material and DEDO and ethylene glycol affected soils A
decision diagram that outlines the logic to be used during DPT installation is provided below.
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1-7 Juty 2009
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July 2009
--Additional• samples .. may -be-oollec1eo .. at-the -discretion-of--the-field-geologistc--A backg-round-san1ple-of
ambienl-air--wm. be-oonected-by-drawing-a--s-ample-lhrough-a-gas deteclor-tube-to-eva!uate-t-he-presenc,e .. of
ethylene-g-fycof-in-the-ambient-aif-in--the-s-ampling-afea,-
Gfo1JAdwalef-sa1nples-wiH-be·GOlleGted-approxi-mately---3-feet--below-the-top-of-the-gfOOfldwatef--S\;lr:fac-e-c
Basee-OR--4Re-a&&Umed-Wffief-levels,the--maximum-DPT-depth-is---anti6ipa-ted--to-be-awex+matel-y-2-6--feet
bg&.---Gepending-on-the-deplh-to-water,-gmuROwatef-&amples-will-be-wlleGled-thf~using
sma!l-ffiameter-bafler-s-or-a-peristaltk:-pUfl1p:-TAe.proc-€-Owe-fGF--tfls!allation-of-the-GP:r-oorings-is-ffiGluded-as
Pa-4-H-fl=SP-t,--SeGtiofl-2-and-the•lask--Aa zard--analysis-lhat-wiU-be--fo#owe-0--duFi A~ U:ie DPT iAsta n alien-is
irn;\IJOed-iFl-Append•)(-A-of-the-HASP,---Gllfing-DP+----soil--and-gr-oondwatef-sampling""lhe-flelG~st---wit!
doGUmeA-1-the-sample-GolleGtion-in-t-he-field-noteOOOks
+empQr-ary-1...-ffich-Oiameter-piezoineteF&-wHl-gener-ally-be--plated-iR--the-GP:f-boreholes-to-a~w•the-fiekl
team-to-GO~ec1:dala-for-crealing-a-looal-water-lable-1nap"for-evaluation,-and-t-e-supplemenl--#le-waleF-l&vel
measurnmenls-obtaiRed-from-t-he-permanent-1no1lito-ring-well&:--•-These-lemporary--pie-zometers-,,.-vi-ll-be
abaRd-Oned-prior-!o-oompletion-of.-the••field"program:----lf-the-soils-iA--the-are,HHe-relatively-imperffl€able-•and
sampHng-through-lhe-DPT-rods-proves-imprnslical,•lhese-~e201neters-wilf-also-provide-for----co~eGtion-of-l./ery
shaUow-g-roundwater--sample-s-.. where-the-ir-colle-0tion-would-not-have-been-possfble--0lheFWi&e-s
3.2 DPT Soil and Groundwater Sample Analysis
DPT soil and groundwater samples will be analyzed for die-lhylene ei,ideDEDO and ethylene glycol. A
summary of the groundwater analytical methods·, holdings times, sample preservation, and sample volume
for the required method is presented in Table 1 of this document and in the QAPP.
3.3 Quality Control (qnQC) Samples
Quality control samples will be in accordance with the QAPP. A trip btank will be included with each
shipment to the laboratory that contains a sample for volatile organics analysts.
3.3.1 Submittal of laboratory samples
Samples will be submitted to Davis & Floyd for laboratory analysis. The address and POC for Davis & Floyd
is included in Section 1.2.2.
3.4 Laboratory Requirements
Davis & Floyd will be required to submit Level 3A data to AECOM. The data will be submitted to Bryon
Dahlgren in hard copy and electronic data delivery {EDD) form. The laboratory methods and requirements
are detailed in the OAPP.
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1-9 July 2009
4.0 Monitoring Well Installation, Development, and Sampling
Based on the request for additional information in the area of monitoring welt cluster II-40/ll-65, a monitoring
well will be installed to anticipated depths ranging from approximately 100 to 160 feet bgs. The location of
the well is shown on Figure 2.
4.1 Monitoring well Installation and Construction
The monitoring well will be installed using air rotary drilling methods. A 6-inch surface casing will be
installed to the top of competent rock at an anticipated depth of approximately 60 feet bgs. A 2-inch
monitoring well will be installed through the surface casing to an anticipated depth of 100 to 160 feet bgs.
The well will be constructed of 2-inch, schedule 40, polyvinyl chloride (PVC) casing, and 0.01-inch slotted,
schedule 40, PVC well screen. The monitoring well installation and construction procedures are detailed in
Part ll (FSP), Section 3 and the task hazard analysis that will be followed during well installation is included
in Appendix A of the HASP. The field geologist will document the well construction on the Well Construction
Summary form that is included in Appendix A and in the field notebook.
Upon completion, water level measurements will be collected using an electronic water level meter. Water
level measurement procedures are described in Part ll (FSP), Section 6.
4.2 Monitoring well Development
The drilling contractor will develop the monitoring well by surging and pumping with an electric, submersible
pump. AECOM personnel will be present during development to collect groundwater quality parameters.
The well development procedures are detailed in Part II (FSP), Section 3.
4.3 Monitoring well Sampling
The groundwater sampling events will consist of the collection of:
• groundwater elevation data from monitoring and former remediation wells,
• groundwater samples from selected monitoring and former remediation wells, and
• surface water samples.
The details of the groundwater monitOfing-wen-sampling are included in Part II (FSP), Section 6.
4.4 Assessment of TCE and off-site HH wells
ln addition to the primary goal of establishing a new site characterization data gathered during the late 2009
and early 201 O expanded events will be used to establish whether the historic presence of TCE at wells
HH-48 and HH-77 is related to the site. TCE concentrations at the HH wells have typically fluctuated
between 100 and 450 micrograms per liter (ug/L). Through the mid-1990s concentrations were higher at the
shallow well (HH-48). Since that time higher concentrations have been reported at the deep well (HH-77).
Concentration trends at both wells have been generally downward since early 2005. The most recent data
were collected in July 2008 with results of 85.9 ug/L at well HH-48 and 320 ug/L at well HH-77.
In 1998 TCE was detected at wells TD-3 and TD-4 in the giant area of the site. Though the concentrations
at these wells are higher than those reported at the HH wells no comparable concentrations have been
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1-10 Ju,r2009
reporteQ in w~lls located between the TD wells arid the HH wells_ In 2006 Celanese and AECOM (fonnerly
Earth Tech) submitted an assessment of groundwater flow gaths and concentrations which concluded that
the HH well concentrations were not related to the TD well concentrations. EPA has reguested this
additional data assessment to provide final evidence before reaching concurrence with this conclusion.
The TCE concentration data gathered will be comgared to concentrations reported at the HH wells.
Concentrations have been at or above 200 ug/L at one or both wells since the early 1990s. The new data
will be compared to the 200 ug/L level as an initial screening.
Because the wells to be sampled during the exganded characterization events were sele!t;ted for site
characterization not all of the wells are aQproQriate for egual consideration in an assessment of a
relationship between the site and the HH wells. The wells are classified into the categories as described
subseguently. Most wells are identified as either flow gathway wells or potential pathway wells. These
include wells downgradient of the Qian! area and either along or near the identified flow Qalhs which
8QQroach the HH wells. Other wells have been classified as general assessment wells. The general
assessment wells are in other regions of the site and are considered remote from gotential flow paths to the
HH wells. Therefore data from these wells are not indicative of an association with the HH wells.
Flow Path Wells Potential Flow Path Wells General Assessment Wells
PEW-3 G-50 C-49
PEW-4 1-57 TD-2
Tl-2 T-35 DD-58R
V-23 OT-1R PEW-1
V-fi5 F-55 88-18
IT-6 K-28 P-58
IT-7 K-58 KK-55
IT-RR LL-110 PZ-12
IT-9 LL-175 M-54
CC-33 LL-295 MM-128
M-44 IT-5 MM-170
W-23 MM-280
Z-78 11-65
GG-'9 TD-3
GG-61 TD-4
OT-5 HH-48
OT-3 HH-77
NN-105
NN-240
The available data from the flow path and gotential flow Qalh wells will be evaluated after the collection of
the second round of data in the first guarter 2010 to determine if the upgradient wells are related to the HH
W§:lls. For this analysis. the total cQnQ§:njrajiQn§: Qf TQE cis-1 2-dichloroethene and vinyl chloriQ§: will Q§:
comgared to the 200 ug/L level tyQical of the historic HH data. If the total combined concentration at any
well exceeds 200 ug/L this result will indicate a gotential connection between the site and the HH wells.
Conversely if none of the wells contain a combined concentration of 100 ug/L then this result will indicate
that the concentrations at the HH wells are not site related.
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1-11 July 2009
M_Stream Sampling Pilot Test -completed April 2 and 3, 2009
and reported in a technical memorandum dated May 12, 2009
The Agency has requested an investigation of Stream C, from the dam of the recreation pond to its
confluence with Stream A, to evaluate whether shallow groundwater discharges to the stream as suggested
by the slope aquifer model proposed by LeGrand. Laboratory analysis of fiieER.y~DEDO in shallow
groundwater and surface water and local water elevation data will be coflected for the evaluation. Because
of the local hydrogeo/ogical conditions, the specific methodology used to collect the shallow groundwater
data will be evaluated before full scale implementation. A map showing the propf2!..0P.l15ed locations of the
pilot tests for the technology is included as Figure 3
The objectives of the stream investigation are to·
collect samples that are representative of the groundwater beneath the stream bed,
collect surface water samples from the stream, and
confirm groundwater discharges to the stream as suggested by the slope aquifer model.
The stream conditions (rock bottom with 6 to 12 inches of sediment) limit the methods that can be used for
collection of the data Therefore, only two methods of collecting the groundwater data were evaluated in
preparing this plan.
passive diffusion bag (PDB) samplers installed directly in the stream bed
shallow, temporary, monitoring wells installed in the stream bottom or along the stream bank
According to the manufacturer, PDBs are not appropriate for collecting EJief'lf!ercie e1t<&eDEDO samples;
therefore, they were eliminated from the evaluation. Consequently, temporary monitoring wells were
determined to be the best alternative for collection of the groundwater data. Use of the temporary wells a/so
facilitates collection of water level elevation data proximate to the stream
Because of limited access and subsurface conditions (highly vegetated with large root zones and potential
for large gravel to cobble size sediment) installing temporary monitoring wells will be difficult. Therefore, a
pilot test will be performed to evaluate the best method for installation of these wells before performing the
larger scale investigation. The two methods that will be evaluated by the pilot test are:
drive point wells, and
hand/power augured wells.
These two methods are discussed in the following sections
5.1 Pilot Test Objective
The objective of the pilot test is to determine which of the proposed methods would be the most time and
cost effective.
5.2 Proposed Groundwater Sampling Methods
The two methods that will be evaluated by the pilot test summarized in the following sections
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1-12 July 2009
5.2.1 Drive Point Method
The drive point system consists of two basic components.
• one-half inch inside diameter (ID) by 4-foot long stainless steel drive rod
• slide hammer
The slide hammer will be used to install the rod to the proper depth and extract the rod upon completion.
The steps for installation and extraction of the rod and collection of the water sample are summarized
below.
A decontaminated drive rod will be used for each location.
At each location, using the drive point and slide hammer, determine the depth of sediment on the
bottom of stream at three points.
After installation of the drive point, the sample crew will initially evaluate whether the rod is properly
sealed and the water in the rod is representative of the groundwater.
The water level in the rod will be measured and compared to the surface water outside the drive
point to determine whether a local gradient can be measured.
After the drive rod has been properly installed and water levels determined, field parameters (pH,
conductivity, temperature and oxidation-reduction potential (ORP)) will be collected using a
peristaltic pump and multi-parameter water quality meter with a flow through cell. Parameters will
be collected from the water in the stream and in the drive rod. A comparison of the field parameters
will be used as the final evaluation to determine if the drive is adequately sealed, and the water in
the drive point is representative of groundwater.
Representative water samples from within the drive rod and from the adjacent surface water will be
collected for diethylene--0x-ieeDEDO analysis.
The drive rod will be removed and decontaminated in preparation for the its use at the next
sampling location.
5.2.2 Hand/Power Auger or Post Hole Drive Point
If the drive point method is not successful in achievmg the desired depth, the field crew will attempt to install
the temporary monitoring wells using a hand auger or posthole method
Initially, the hand auger method will be used. If the hand auger is not successful in achieving the desired
depth, a postho/e digger will be used. We anticipate that most /1ke/y a combination where the hand auger is
used to start the hole and the post hole digger is used to remove larger gravel and cobbles and to ream the
hand auger boring to the desired depth will be most successful in installing the temporary monitoring wells.
A PVC casing may be used to prevent collapsing of the boring once groundwater is encountered. If the
hand auger/posthole method proves to be effective for installing the temporary monitoring wells, a power
auger will be tested to evaluate if it can be used to increase the time efficiency of the process.
The steps for installation of the temporary monitoring wells and collection of the water sample are
summarized below.
Decontaminated drilling equipment and posthole digger will be used for each location.
After completion of the boring, install the temporary monitoring well materials as detailed in Part II
(FSP}, Section 3.
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1-13 J<lly 2009
After installation of the temporary monitoring well materials, measure the turbidity of the water. If
the turbidity of the water is greater than 10 nephelometric turbidity units (NTUs) develop the well as
detailed in the Part fl (FSP), Section 3.
Collect groundwater sample for DEDO as detailed in the Part II (FSP), Section 6.
• After completion of groundwater sampling, abandon the temporary monitoring wells as detailed in
Part II (FSP), Section 3.
5.3 Stream Investigation Pilot Test Results
Subsequent to submittal of the WP and FSP. the steam investigation plot test (SIPT) was completed on
April 2 and 3 2009 with EPA approval. The objective of the investigation was to evaluate the best methods
for collecting representative groundwater samples from beneath the stream bed. In addition to the methods
described in Sections 5.2.1 and 5.2.2 at the recommendation of Jon Vail EPA Region 4 Science and
Ecosystems Support Division (SESD} a "'Henry sampler" was evaluated during the pilot test. The Henry
sampler is similar in application to the drive point sampler that was proposed in the FSP but is smaller and
more flexible therefore it was decided that it may prove easier and more cost effective to install and was
added to the methods evaluated during the SIPT.
A report summarizing the findings of the SIPT was submitted to the EPA on May 2 2009. The report
recommended a full-scale stream investigation be conducted on approximately 1 800 feet of Stream C
between the dam of the recreation pond to its confluence with Stream A that lies on the Celanese or George
Camp properties. Surface water and groundwater samples will be collected approximately every 100 feet
along the specified area of Stream C. Additionally, .samples may be collected where prominent surface
drainage features discharge to Stream C. A map showing the location of the Q.[QQ_Q§;ed area is included as
Figure 4. The procedures to be used during the stream investigation are described in Section 4 ofthe_FSP.
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1-14 July 2009
§_,Q__Stream Gauge Installation -completed during field activities
March 2009
Seven stream gauge stations will be installed during the Supplemental Investigation in the following areas of
the site.
one stream gauge upstream of the recreation pond
three stream gauges along Stream C between the recreation pond dam and the confluence of
Stream C and Stream A
three additional stream gauges on Stream A upgradient of the confluence with Stream C
A map showing the proposed location of the stream gauges is included as Figure 4•fi.and·a schematic
drawing of the proposed stream gauge is included as Figure 5§_.
The general procedure for installation of the stream gauges is to construct a pennanent reference point
adjacent to the stream where a reference rod can be extended horizontally above the water surface and a
measurement can be determined between the reference rod and the water surface. This measurement is
then subtracted from the surveyed elevation of the reference point and the surface water elevation is
calculated and recorded. The detailed procedure used for construction of the stream gauges is included as
Pa,t II (FSP), Section 5 and the task hazard analysis that will be followed during the construction of the
stream gauges is included as Appendix A of the HASP.
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1-15 July 2009
7.0 Groundwater Monitoring
The groundwater monitoring covered by this Work Plan inc!t,des /s,.sf1own-bel-Ow-c
long-term monitoring program
lo provide general site-wide data to comply with the requirements of the CERCLA monitoring
program,. and
expanded characterization monitoring program
to provide information requested by the Agency as outlined in the !OR and subsequent
conversations related to the distribution of EliethyleAe 9l(ideDEDO, ethylene glycol and TCE
The following sections provide a summary of the methods to be used during the long-term monitoring
program and the 2009/2010 expanded characterization sampling.
7.1 Water Level Measurements
Water level measurements will be collected from site monitoring wells forrn_Q[_.f.§'..tneu!ation wells and stream
lli1!!@_J_Qffil_1_g_ri§_f11J.1:iOQ regularly scheduled sitewi.9_1~.J:rl_()fli_tqr_i_ng_gv.~nts_ The rneasurements_wj_1_1_9_~~9-~ected
dUfing--eaGfl--5-ampliA§-event using an electronic water level rneter-8Aterface-probe,--an4-a~n electronic
interface probe capable of detecting both water and free product will be used when monitoring F-55.
Measurements will be recorded to the nearest 0.01 foot. The procedure to be used for obtaining water level
measurements is included as Part II (FSP), Section 6 and the task hazard analysis that will be followed
during the collection of water level measurements is included in Appendix A of the HASP. A map showing
the rnonitoring well locations 1s included as Flgure 7
7.2 Groundwater Purging and Sampling Procedures
Groundwater samples will be collected from monitoring wells using tow-flow sampling techniques. During
sampling, field parameters (depth to groundwater, dissolved oxygen (DO), ORP, specific conductance,
temperature, tufbidityand turbidity) will be collected to document the adequacy of the well purging and
geochemical conditions at the site. In addition, field measurement of ferrous iron will be performed.
The groundwater purging and sampling procedure is provided as Part II (FSP). Section 6 and the task
hazard analysis that will be followed during groundwater purging and sampling is included in Appendix A of
the HASP.
7.3 Groundwater Sample Analysis
Two distinct sampling plans are proposed in this work plan; an interim monitoring program to address the
CERCLA requirements and the 2009/2010 expanded characterization sampling program. The interim event
was completed in March 2009.
Depending on the sampling event, monitoring wells will be sampled for ethylene glycol, ElietAyleRe
9-.lOO-eDEDO, volatile organic compounds (VOCs), §_$!111-volat,te organic co_1_n_w2_LJ.lL®.Jfil'OCs)---witR----a-fl, y,_1_tb_
QowThermDOWTHERM A™ (1,1-biphenyl and biphenyl ether) and with Tl Cs on selected wells. The
locations and analyte suites monitored during the interim event are shown on Table 2. Table 3 identifies the
locations and analytes to be sampled in the expanded characterization sampling in the fall 2009 and spring
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1-16 July 2009
201 0. :f.he-lisl.§:-of-anatyles-fOHhe-mteRffi-ffiORitOfiRg-and--200B/2040-expanded--GR~pling
pmgrams.are--pr-ovided--fen TaElle 2. A map showing the sampling locations for--the .. sampling programs is
included as Figure 6§.
7.4 Groundwater Quality Control (QC) SAMPLES
Groundwater quality control (QC) samples will include trip blanks, field blanks, equipment blanks,
duplicates, and matrix spike/matrix spike duplicate {MS/MSD) samples. Quality control samples will be
collected in accordance with the QAPP. A trip blank will be submitted with every cooler shipped to the
laboratory that contains samples for voe analysis.
7.5 Submittal of laboratory samples
Samples will be submitted to Davis & Floyd for laboratory analyses. The POC and address for Davis &
Floyd is included in Part 1, Section 1.2.2.
7.6 Laboratory Requirements
Davis & Floyd will_be required to submit Level 3A data to AECOM. Submittals will be made to Bryon
Dahlgren in both hard copy and EDD form. The laboratory methods and requirements are included in the
QAPP.
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1-17 Jufy 2009
8.0 Field Decontamination Procedures
Every effort will be made to minimize decontamination of field equipment When possible, a sufficient
quantity of equipment and/or supplies will be brought to the field to complete the work task without field
decontamination. Disposable equipmenUsupplies will be used where appropriate. If field decontamination
is required, the procedures described in Part II (FSP), Section 7 will be used.
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1-18 July2009
9.0 Investigation Derived Waste
Every effort will be made to minimize the quantity of Investigation Derived Waste (IDW) generated during
the investigation. The management of IDW is discussed in Part II (FSP), Section 8.
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1-19 July 200S
10.0 Reporting
Routine monitoring results will be provided to the Agency through brief semi-annual reports. These reports
will be scheduled for submission in March and September of each calendar year. As site characterization is
completed the monitoring needs may change and the reporting may be revised to annual when appropriate.
Results of additional events and data assessments will be submitted to the Agency in the form of technical
memos. These memos will be limited in scope to the specific findings and conclusions of FeGeRt-specific
activities. Once the work identified for completion of the expanded characterization is finished a summary
report will be prepared incorporating the newly learned information to refine the site conceptual model and
update the understanding of the site.
:r.wo-wpiesOne hard copy and a PDFodf copy of each deliverable will be provided to the AgenG~fand-one
sopy-wilJ--..be-provided-toEPA and the North-Carolina-GepartmeAt ef eAvirnArneAt aAEI Natural
R-esoofc--esNCDENR. A copy of each document will also be posted to the previous-ly--established-internet
share site.
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11.0 Project Schedule
A schedule of the anticipated work tasks is provided as Figure -7§!. +he-SGhe<iule•wiU-be-modlfied if Uoie start
dale..fs-delaye~--moomed,_Revised schedules will be submitted to the EPA and
NCDENR .a§.Yia technical memorandumss when substantive changes occur.
1-21 July 2009
PART II -FIELD SAMPLING PLAN
1.0 Introduction
This Field Sampling Plan (FSP) provides procedures for implementation of the task described in the Work
Plan (Part I). The fieldwork will consist of two main tasks.
• Supplemental investigation that includes
o DPT investigation of the glycol recovery unit bottoms (GRUB) area
o monitoring well installation in the area of monitoring well nest 11-40/11-65,
o pilot test for collection of groundwater samples adjacent to Stream C .(@~~millQt.lW.::
eompleted)
o installation of stream gauges along Streams A and C.---and..::U.a~k completed)
• · Long-term Monitoring Plan and 2009/2010 Expanded Characterization implementation
The remainder of this FSP provides details of the procedures that will be used in completion of the
Supplemental Investigation and the Long-term Monitoring Plan and 2009/201 0 Expanded Characterization
to help assure the quality of the installations and data collected. The work will be conducted in substantial
compliance with the Field Sampling Plan for Supplemental fnvestiqation and Long-Term Groundwater
Monitoring and the United States Environmental Protection Agency (US EPA) Region IV document Field
Branches Quality System and Technical Procedures
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2.0 Grub Area Direct Push Technology (DPT) Investigation
In response to the request for additional information from the Agency regarding potential sources in the
GRUB areas, a DPT investigation will be periormed in the area of monitoring wells V-23 and K-5828,
2.1 Objectives
The objective of the investigation is to:
• evaluate if "hot spots" proximate to the GRUB area are contributing to the elevated concentrations
of diethylene dioxide (DEDO commonly known as 1 4-dioxane) and ethylene glycol detected in
monitoring wells V-23 and K-2858,
• if "~01 s~ols" are feuA9, --delineate the horizontal and vertical extents of 9ieIAylene oxiaeDEDO and
ethylene gl)'col in soil and measure the local impact to groundwater if "hot spots" are found, and
• evaluate the adequacy of existing wells to monitor the diethylene-oXffieDEDO and ethylene glycol
plumes in these areas.
2.2 DPT Soil and Groundwater Sampling
DPT borings will be installed on an approximately 25a-§0-foot or-smaller-grid adjacent to monitoring wells K-
2_58 and V-23. The layout of the sampling grid and tentative-initial sampling locations proximate to
monitoring wells K-£_58 and V-23 and in upgradient background areas are shown on Figure 1. I+he initial
sampling interval is set-a-t-f,QaG feet, however it but-wHl-he-fedtJGed-to•idenOfy..tflB--e](tent--of-pofentim--source
material-klenlified. It-is anticipated that the 25-foot grids will be reduced to approximately 12.5 feet solit-if
source material or areas of significantly elevated groundwater impact are identified to provide better
DPTOOFehole spacing.-oo-the-or-def-of 12.,.&.feel-m-5-Gffie--area-s. -Installation of the DPT borings will be
prioritized to gather preliminary information in the most likely upgradient areas and in the background area.
The boring locations will be surveyed-lOGated after the DPT instanationdftliin-g is completed.
During DPT soil and groundwater sampling, the field geologist will document the sample collection in the
field notebook.
2.2.1 Pre-sampling Activities
Before initiating DPT installation, the following items will be completed.
P-r-GJ}OSed--s_S_ampling locations will be staked or marked.
Each location will be field checked for accessibility.
• A utility clearance will be completed on each location.f
· Because the surface soils are being disturbed a plant excavation permit will be required to perform the
GRUB area investigation. As part of the excavation permit process plant and drilling oversight personnel
will evaluate the work area and determine where there is a potential to encounter subsuriace utihties. In
these areas utility clearance hand auger borings will be required by permit before initiating DPT activities.
Through our e.xperience in the GRUB work area AECOM is aware of an underground electric and storm
water diversion lines that run tllf.Q_~igh the GRUB ~vork area therefore hand aug_e__LJ)_orings will be required
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• A DPT location may be moved if deemed necessary by the field geologist due to unsafe conditions
or difficult access with approval of the project manager.
lll._DPT Soil Sampling
A source area investigation will be 12erformed down groundwater gradient of the area where solidified
incinerator ash and inert material is known to have been buried as 12art of the active site remediation. The
objective of the investigation is to evaluate this area with resQect to QOtential remaining source areas that
could contribute to elevated ethylene glycol concentrations detected in groundwater samples from the area.
The GRUB area investigation will be gerformed using a Qhased samgting Qian that is biased towards wells
K-28 and V-23. Th!il; reasoning fQr !,!Sing these wells is they have the higher historical <;;Qni;;~ntr2;tions of
ethylene glycol in the area and therefore should Qrovide a "worst case" scenario for evaluating QOtential
source areas. !t should be noted that the DPT investigation will not include the area where the solidified
material was buried since confirmation samQles of the treated material were collected before Qlacement.
The investigation wilt be QerfQrmed using an aQQroximately 25-foQt grid that is aQQroximal!il:IY centered on
wells K-28 and V-23. To determine the initial areas to b!il: ev~lliated a line was drawn from well~ K-28 and
V-2~ UQ groundwater gradi~nt n22s!;ld on Januar:y 2008 data} toward the near~st kngwn QR!,JB burial area.
To account for variations in groundwater flow direction two additional lines were Qrojected from the wells at
an angle of+ 22.5 degrees from the flow line (Figure 1). The first Qhase of the initial investigation will
Qroceed within the triangular area formed by the QrQj~g~~ line:~ ~nd the boundar:y of th~ n!il:arest known
GRUB burial area. The investigation will be gerformed using a ghased aQQroach which is summarized in
the following table.
As grev!ously stated the investigation will be gerformed using a Qhased aQgroach which is summarized in
the following table.
lnvestination Phase
Phase I
GRUB Area Investigation
Back~round lnvesti~ation
Phase II
GRUB Area Investigation -
Initial Investigation
Phase Ill
GRUB Area Investigation -
Delineation
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Phase Descrintion
Install DPT background points at grid locations D9 and C19 (Figure 1).
• Install DPT goints at the following grid locations (Figure 1) .
K-28 grid locations: LG L7 LB L9 L10 M6 M7 MB M9 M10 and P5
V~23 "rid locations: 115 116 117 118 J15 J16 J17 and M15
If GRUB material is observed in the Phase I or II DPT locations additional
DPT borings will be installed at adjacent grid locations to deline.:ite the
horizontal and vertical extent. Delineation will be considered comQlete
when the:
DPT location with GRUB material has been bracketed on the samQling
grid with a northerly. southerly easterly and westerly "clean boring·· {i.e.
no GRUB material)
DPT location with ethylene glycol field screening results greater than
detection has been bracketed on the samQling grid with a northerly
southerly easterly and westerly "clean bori[Jg~i.e. -field screening
results less than detection for the ethylene glycol fie!d screening)
The locations of these DPT "Oints will be determined bv field neolonist and
2-3 July 2009
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I project team based on the results gf the Phase I and II borings.
Based on the results of the laboratory analysis additional DPT borings may be required to delineate the
horizontal and vertical extents of the GRUB material and DEDO and ethylene glycol affected soils. A
decision diagram that outlines the logic to be used during DPT installation is .Q.LOVided below.
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Dire<! Pu1h Lontl<>n Cornplotlon LDgic
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PIDreool
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GRUB p,.,.ent?
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Grouodwater
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sampl• ~nd
end d,oct push int
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During DPT boring installation continuous soil samplers will be advanced from a depth of approximately 3
feet bqs to allow for hand auger utility clearance. to groundwater. When collecting DPT soil and
groundwater samples the following procedure wilt be utilized.
1) Determine the approximate depth to water based on historical groundwater measurements and if
available data from previous GRUB investigation DPT borings
2) Push 5-foot DPT continuous soil samplers until groundwater is encountered. If required soil
samples will be collected from the interval approximately 1 to 2 feet above the groundwater surface.
3) Using the same DPT boring push the DPT .9r.oundwater sampler to approximately 4 to 5 feet below
the groundwater surface as deterrnined frorn evaluation of the soil sarnples. and collect a
groundwater sample.
Based on recent water level data, groundwater in K-28 and V-23 is assurned to be approximately 20 feet
~
Please note the 4 to 5 foot depth prescribed in item 3 above represents an increase in groundwater sample
depth from that proposed in the draft Work Plan and Field Sampling Plans. Because of the low flow
conditions at the site we believe the increased depth (i.e. hydraulic head) will decrease the time required for
the groundwater sampler to ftll and therefore. expedite the DPT groundwater sample collection.
The soils in each sampler will be screened uSIQ9JLP...b_oto ionization detector (PIO}. The ionizil}9..§.lli'!l9Y
values of DEDO and ethylene glycol are 9.9 and i0.16 electron voJ!f,_@.Yl...I.§Rectively therefore. the PIO
with a 10.6 eV lamp will be used. The correction factors (for calibrating to isobutytene) for DEDO and
ethylene glycol when using a 10.6 eV lamp are 1.3 and 16 respectively (i.e a a 10 ppm response on the PIO
for ethylene glycol would require a 160 ppm concentration in the sample being measured). Since ethylene
glycol is anticipated to have higher concentrations in soil. the correction factor for ethylene glycol will be
used during soil screening. Additionally ethylene glycol is known to have slow PIO response time.
Therefore the PIO will only be used to screen the soil samples and select the interval from each sampler
with the highest PIO concentration. Typically these intervals will be field screened using the ethylene glycol
test l<it. Based on the results of the ethylene glycol field screening as well as visual observations. the field
geologist will determine if a sample for laboratory analysis will be collected from a given DPT location. DPT
soil samples will be analyzed for DEDO and ethylene glycol. The specific sampling procedures are:
1. Mobilize a DPT rig to the site to install the OPT borings..,
2. The initial DPT borings will be installed at the locations shown on Figure 1. Additional DPT
locations for plume delineation if necessary will be selected by the field geologist based on the
initial DPT field screening results
3 DPT soil samples will be collected from each DPT boring using a 5.foot continuous sampler with
polyethylene sleeves. Each interval will be evaluated for laboratory analysis based on the results of
glycol (as· ethylene glycol) field screening. The methodology for the field screening follows.
a.
b.
C.
Collect soil samples from each DPT boring using a 5-foot continuous sampler with
polyethylene s!eeves.
Scan the 5-foot continuous sample with a PIO. The PIO results will be used to be evaluated
each 5-foot interval and determine where ethylene glycol field screening is appropriate.
Soil from each 5-foot continuous sampler will be screened by cutting the polyethylene
sleeve lengthwise to expose the soils and scanning the full length of the continuous sampler
with a PIO. A minimum of three readings from each 5-foot continuous sampler wilt be
recorded.
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If no PIO response above background is noted from a given DPT location a sample will be
collected from the first 5-foot interval.
lf one or more intervals provide a PIO response above background from a given DPT
location. each of those intervals will be field screened for ethylene glycol.
Collect the sample for field screening by mixing an approximately 5 cubic centimeter (cc)
soil plug from each 1-foot section of the selected interval into glass container. The soil
plugs will be blended to create a composite sample. If necessary use a small spatula to
disaggregate soil particles to the minimum practical size to allow for maximum soil/water
contact
Using a syringe with the tip cut off, place approximately 5 cc of the soil composite into a 40
ml vial. Add approximately 10 mis of water. Place the cap on vial and tighten.
Mix the soil and water using a vortex shaker for a minimum of 15 seconds. Continue mixing
as long as needed to thoroughly.M]itate the soil and water.
Filter the soil-water mixture through a 1 micron filter or filter n_aper and collect the filtrate in a
40 ml vial. Place a cap on the vial and tighten.
Field screen the filtrate for glycol (as ethylene glycol) using Chernetrics test kit K-4815C.
The results of the ethylene glycol field screening as well as the observations of the field geologist will be
used to determine which samples will be submitted to an off-site laboratory for certified analysis of DEDO
and ethylene glycol using SW-846 method 8260B S!M and 8015 · respectively. The soil sample that is
submitted to the laboratory will be taken from an undisturbed portion of the soil sample from the
polyethylene sleeve and not from the sample used for field screening.
2.2.3 DPT Groundwater Sampling
After soil sampling has been completed, groundwater samples will be collected using a DPT screen-point
sampler that consists of a stainless steel screen encased in a stainless steel sleeve. The screen remains
encased in the sleeve as it is pushed to the desired depth where the sleeve is retracted exposing the screen
to groundwater. Groundwater-samples wfll-be•roUeoted .. a-ppro)(imatefy 3-4 lo-5---feet-below--the .. groundwater
suFfaGe, ..... Sased--or-Hhe antiopated. water---levels-, .. t-he •H"la•)(•imum DPT-depth -is .. assurned .. -to .. be approximately
25 feet bgs, ... Depending-on .. the .. cteplh-to .. wat-er,-groundwater-santples---will .. be .. collected -thrnugh--lhe-DPT--rods
usfng--small~diametef .. bailer-s .. or-.. a peristaltiG-pump, A-ma-p--showing .. -the pro-posed ir1itial-localion-of.-lhe .OPT
boring&-i&--im,luded-as-Figure--1
Groundwater samQ!_es will be collected approximately 5 feet below the top of the groundwater surface.
Based on the assumed Wi!!fil levels ... the maximum DPT deptb,_J~ __ anticipated to be..J!QQ..CQ_Ximately_Z.!iJeet
bg_s ___ D~ftllding on_the depth to water grour_1(lwri.ter s.WY!.pleS will be coll~_GtJ~d throu_g_lJ th~ DPT rods l!§ill.9
~-ffi?!l-diamete1_bailers or a peristi;lj1lg__Q!J.ffi.Q., ___ The procedure for insta!lati@ __ Qflh...J:t.Qf:'.IJ;iorings is included as
Part 11 !FSPl Section 2 and the task hazard analysis that will be followed during the DPT installation is
included in Appendix A of the HASP. During DPT soil and groundwater sampling the field geologist will
document the sample collection in the field notebook.
Temporary 1-inch diameter piezometers will gerierally be placed in the _DPT boreholes to allow tt1e field
teafl) to collect data for cr·eptinq a local water table map for evaluation and to s1m.Q)ement the wt1ter level
measurements obtained .trnm t11e permanent monitoring wells. Tilese temporary piez:ometers will be
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I •
abandoned prior to completion of the field program. If sampling groundwater through the OPT rods proves
impractical these piezometers will also to collect groundwater samples.
The-proc-edure-fOf-groundwater-sampling+ts-detailed-in-tfle-following-SeGlions,-T-he-task--Ml-afd-analysfs-that
wil,l..be-fo!-lowed-during-ttle-DP-.:f-groundwater--samp!i1-1g-is-41-1Gluded-in-Appendi,x-A-of-lhe-HASP-c
2.2.3.1 DPT Groundwater Sampling -Peristaltic Pump
If the depth to water in the DPT boring is less than 25 feet bgs, a peristaltic pump will be used to collect
groundwater samples using the following procedure.
1. Attach the screen-point sampler to the rods and push to the desired depth. To match the monitoring
well sampling conditions as closely as practical, groundwater samples will be collected from
approximately 3 feet below the top of the groundwater surface.
2. Retract the rods to expose the screen.
3. Run the polyethylene tubing through the rods to the bottom of the screen point sampler, and then
pull the polyethylene tubing up approximately 1 foot. A stainless steel sampling nipple may be
attached to the end of the tubing if needed.
4. Attach and secure the tubing to the pump.
5. Start the pump at the lowest practical flow rate that will maintain a constant flow while being careful
to avoid surging. Precautions will be taken to avoid pump suction loss or air entrainment.
6. Reduce the pumping rate, if needed, to avoid pumping the screen point sampler dry.
7. If groundwater recharge rate will allow, allow the well to purge before sampling. The duration of the
purge will depend on aquifer condilfons and will be determined by the field geologist.
a. If the groundwater recharge rate is low, temporary screens may be installed in the DPT
boring allowing the rig to move to the next boring. If temporary screens are used, the
groundwater sample should be collected as near the time of equilibration as practical. If
practical, temporary DPT wells should be sampled on the day of installation.
8. After purging, samples will be collected directly into pre-preserved sample containers.
9. Sample containers will be filled by allowing the pump discharge to flow gently down the inside of the
container with minimal turbulence.
10. The samples will be labeled and placed into a cooler on ice.
11. The samples will be logged onto the chain-of-custody form.
12. Groundwater sampllng will be documented on the field form and in the field logbook.
13. After sample collection, the pump tubing will be disposed.
14. Field equipment will be decontaminated in accordance with the procedures provided in Section 7.
Disposable equipment will be discarded after one use.
2.2.3.2 DPT Groundwater Sampling -Bailer
If the depth to water in the DPT boring is greater than 25 feet bgs, a bailer will be used to collect
groundwater samples using the following procedure.
1. Attach a disposable polyethylene bailer to clean rope and lower into the well._ 'f.he-ba+lef-should-be
lowered-to-the-rnidpoint--of-the-ssreen-fnteNal,
2. Sample containers will be filled using a bottom emptying device, if available, and allowing the bailer
discharge to flow gently down the inside of the container with minimal turbulence.
3. The samples will be labeled and placed into a cooler on ice.
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4. Th'e samples will be logged onto the chain-of•custody form.
5. Groundwater sampling will be documented on the field form and in the field logbook.
6. Field equipment will be decontaminated in accordance with the procedures provided in Section 7.
Disposable equipment will be discarded after one use.
2.3 Sample Analysis
DPT soil and groundwater samples will be collected for analysis of DEDO and ethylene glycol. Details of
the laboratory methods and requirements are provided in the QAPP.
2.4 DPT Boring Plugging and Abandonment
After sampling, DPT boreholes will be plugged and abandoned using the following method.
1. Fill the portion of the saturated zone that remains open after pulling the DPT rods with bentonite
chips or pellets. Due to difficulties associated with placement of bentonite chips or pellets using a
tremie, they may be placed by pouring directly into the borehole; however, during placement, the
depth to the top of the bentonite will be monitored to assure that bridging does not occur.
2. To expedite DPT installation, the unsaturated portion of the borehole may be grouted at the end of
the workday using a neat cement grout.
3. With few exceptions (weather, request of plant personnel to leave an area), DPT borings will be
plugged and abandoned the day they are installed.
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3.0 Monitoring Well Installation and Construction
Based on the request by the Agency for additional information in the area of monitoring well cluster 11-40/11-
65, a monitoring well will be installed to anticipated depths ranging from approximately 100 to 160 feet bgs
at the location shown on Figure 2. The groundwater monitoring well installation and construction will be
conducted in accordance with Subchapter 2C of Title 15A of the North Carolina Administrative Code ( 15A
NCAC 2C). _The specifications and procedures for installation are described in the following sections.
3.1 Objective
The objectives of the monitoring well installation are to evaluate diethylene-oxideDEDO concentrations at
depth and provide a better understanding of flow conditions near well cluster 11-40/11-65.
3.2 Monitoring well Installation and Construction
The monitoring well will be installed using air rotary drilling methods. A 6-inCh surface casing will be
installed to the top of competent rock at an anticipated depth of approximately 60 feet bgs. A 2-inch
monitoring well will installed through the surface casing to an anticipated depth ranging from 100 to 160 feet
bgs. The well will be constructed of 2-inch, schedule 40, PVC casing; and 0.01-inch slotted, schedule 40,
PVC, well screen. The task hazard analysis that will be followed during well installation is included as
Appendix A in the HASP. The field geologist will document the well construction on the Well Construction
Summary form that is included in Appendix A and in the field notebook.
Upon completion, water level measurements will be collected using an electronic water level. Water level
measurement procedures are described in Part II (FSP), Section 6.
3.3 Quality Assurance
The subcontractor will provide a driller experienced in monitoring well installation that will be responsible for
supervising and documenting drilling activities. Before use, the driller will inspect well materials for
cleanliness, deformations, and imperfections, and to ensure conformance with project requirements.
Defective materials will not be used.
3.4 Well Materials
The following sections provide details for material to be used in monitoring well construction.
3.4.1 Surface Casing
The surface casing will be constructed with approximately 60 feet of 6-inch ID, schedule 40, PVC pipe.
3.4.2 Riser
Monitoring wells will be constructed of nominal 2-inch JO, schedule 40, flush-thread, PVC. The riser will be
installed from the top of the screen to approximately 3 feet above ground surface.
3.4.3 Screen
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The monitoring well will be constructed with 1 a feet of 2-inch, ID, schedule 40, flush-thread, factory slotted
PVC (0.010 inch). Based on the aquifer characteristics, larger slot sizes and screen lengths may be
substituted, with the project manager's approval.
3.4.4 Water
Water used for drilling and/or mixing of grout or concrete will be from a potable source.
3.4.5 Concrete
Concrete will be SakreterM (or equivalent).
3.4.6 Cement
Cement wilt be Portland cement in 94-pound bags complying with ASTM C150.
3.4.7 Bentonite
Bentonite will be clay particles consisting of greater than 85% sodium montmorillonite, without additives, as
described below.
• powdered: 200 mesh
pellets: 3/8-to 1/2-inch diameter formed pellets
• chips: angular fragments of formed bentonite
3.4.8 Cement-bentonite Grout
Cement-bentonite grout will consist of the following proportions.
• Portland cement: 94 pounds
• powdered bentonite: 5 pounds, without additives
• water: 8.5 gallons
The cement-bentonite grout will be mixed as follows.
1. Add bentonite to water and mix thoroughly.
2. Add cement to bentonite and water and mix thoroughly.
3.4.9 Neat-cement Grout
Neat-cement grout will consist of the following proportions.
• Portland cement: 94 pounds
• water: 5 to 6 gallons
The neat-cement grout will be mixed by adding cement to water and mixing thoroughly.
3.4.10 Well Screen Filter Material
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The well screen filter pack will consist of well-sorted, well-rounded, silica based (95% minimum silica) sand
or gravel, visibly free of dust, clay, mica, and organic matter that is appropriate to the screen slot size.
3.4.11 Tremie Pipes
Pipes used for seal placement will be metal or PVC pipe rated for a minimum 100 psi.
3.4.12 Well Head Completion
The well head completion materials are provided below.
• protective casing
o The protective casing will be a 3-or 4-inch by 5-feet long, round or square steel pipe, with a
lockable cover.
o Locks will be keyed alike.
o An approximate 1/4-inch diameter drain hole will be installed in the protective cover
approximately 1/2 inch above the concrete pad.
• concrete pad:
o Concrete pads will be a minimum of 2-feet square by 4-inches (nominal) thickness and will be
constructed of Sakrete ™ concrete, or equivalent. The protective cover will have a minimum 18-
inch burial.
o The pad will slope away from the well.
3.5 Pre-drilling Preparation
Before drilling, the following activities will be completed.
• The proposed location will be staked or marked.
• The location will be field checked for accessibility.
o The well location may be moved if deemed necessary by the field geologist due to unsafe
conditions or difficult access with approval of the project manager.
3.6 Decontamination of Equipment and Drill Rig
Drilling equipment will be decontaminated as specified as in Section 7.
3.7 Drilling
During drilling, the following procedures will be followed.
• Drill to J:QQauger-refusal using an air rotary drill rig and set a 6-inch surface casing. If possible, drill
1 to 2 feet into rock to properly "seat" the casing.
_• _After the surface casing grout has cured sufficiently, drill to the total depth of the well and set the
well materials. Ten feet of screen will be installed_
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_, _The determination of the well depth will be made by the field geologist based on the moisture
conte11tdi-tion of the cuttings and subsurface co11d1tions nq_ted during Q.[Wi_og __ ll)_,g_,__transitional ~on~.,
competent rock. etcJ:.,_dr~rnng-behaviof
• Record well and material placement measurements to nearest 0.1 foot.
• Record the static water after completion of drilling and sampling.
3.8 Monitoring Well Installation
Monitoring well construction materials wilt be stored in a secure area removed from potentially contaminated
areas that could affect the ability of monitoring well materials to produce representative groundwater
samples
3.8.1 Well Screen Filter Material
Backfill around the well screen with screen filter pack material using a tremie pipe. During sand pack
placement, sound the top of the sand to prevent "bridging.~ Extend the well screen filter pack approximately
2 feet above, and 6 inches beneath, the well screen. Measure the depth to the sand pack from the ground
surface to the nearest 0.1 foot and record in logbook and on field forms.
3.8.2 Bentonite Seal
Bentonite chips or pellets will be used for the seal material. Because of the small diameter of the borehole
(approximately 6-inch diameter) placement using a tremie pipe would be difficult. Therefore, the bentonite
material may be placed by gravity if the top of the bentonite is regularly sounded to prevent bridging during
placement. The bentonite seal will be a minimum 2 feet thick and will be hydrated with clean water before
placement of the overlying grout.
The depth to bentonite will be measured from ground surface to the nearest 0.1 foot and recorded in the
logbook and on field forms.
3.8.3 Grout Backfill
A bentonite-cement grout will be used to backfill above the bentonite seal to approximately 2 feet bgs using
a tremie pipe. To prevent the grout from segregating, the bottom of the tremie pipe will be submerged
throughout the grouting process and withdrawn as the annular space is filled.
The grout will be allowed to settle-and-cure a-mintmum -overnight-before completion of the wellhead. If the
top of the grout level dropseUle-s during curing, additional grout will be added to bring the top of the grout to
top-8#--the-grouHo-within-approximately t-o-2 feet bgs.
3.8.4 Wellhead Completion
A protective cover will be placed around the well riser stick-up. An approximate 1/4-inch-diameter drain hole
will be placed in the protective cover approximately 1/2-inch above the concrete pad. The concrete pad will
be a minimum 2-foot by 2-foot by 4 inches thick. The annular space between the protective cover and PVC
riser wlll be filled with filter pack material.
A State-approved well tag will be placed on the outside of protective cover and the cover will be locked.
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3.8.5 Restoration
The area around the well will be restored and the site will be cleaned of debris generated during work.
3.9 Temporary Monitoring Well Installation
The following procedures will be used during installation of temporary monitoring wells during the stream
investigation--fHlet-test if needed.
3.9.1 General
Monitoring well construction materials will be stored in a secure area removed from potentially contaminated
areas that could affect the ability of monitoring well materials to produce representative groundwater
samples. Daily usage of well construction materials will be recorded in the daily log.
3.9.2 Well Riser and Screen
The temporary well will be constructed with 1-inch PVC well materials. The well will be constructed with 2.5
feet of 0.01 inch factory slotted screen and enough riser to provide an approximately 2 to 3 feet stick up.
3.9.3 Well Screen Filter Material
The annular space around the well screen will be backfilled with screen filter pack material, and wil\ extend
approximately 1 to 2 feet above the well screen. Due to the depth of the well (approximately 5 feet), the
materials may be placed by gravity. The depth to the sand pack from the ground surface will be measured
to the nearest 0.1 foot and recorded in the logbook and on the field forms.
3.9.4 Bentonite Seal
Bentonite chips or pellets will be used for the seal material. Due to the depth of the well (approximately 5
feet) the bentonite seal may be placed by gravity. The top of the bentonite will be brought to approximately
6 inches bgs and hydrated with clean water. The upper 6 inches of the boring will be backfilled with native
soil to prevent loss of moisture from the bentonite seal. The depth to bentonite will be measured from
ground surface to the nearest 0.1 foot and recorded in the logbook and on the field forms.
3.9.5 Wellhead Completion
The temporary well number will be written directly on the well riser. The well will be secured with a locking
cap and padlock..
3.9.6 Restoration
The area around the well wi!! be restored, and the site will be cleaned of debris generated during work
3.10 Monitoring Well Development
The well will be developed by the drilling company by pumping and surging the monitoring well using an
electric submersible pump. The well will be developed as follows:
1. Decontaminate the electric submersible pump using the method in Section 7.0 of the FSP.
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2. Lower the pump to the bottom of the well and start the pump.
3. Surge the pump by lowering up and down within the well screen to facilitate the removal of
sediment. Develop the well in 3-to 5-foot intervals to help ensure uniform development.
4. Periodically check the turbidity of the water. Ideally, development will continue until the turbidity is
less than 1 O NTUs.
a. The well development may be terminated before reaching 10 NTUs if three consecutive
turbidity reading are within 10% and, if in the opinion of the field geologist, additional
development will not significantly decrease the turbidity readings.
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4.0 Stream Investigation Methodology
The Agency has requested an investigation of Stream C, from the dam of the recreation pond to its
confluence with Stream A~ to evaluate whether shallow groundwater discharges to the stream as suggested
by the slope aquifer model proposed by LeGrand. Concentrations of dlethyt8Re-0xkieDEDO in shallow
groundwater and surface water and local water elevation data will be the data collected for the evaluation.
A map showing the pr-opos-ed-locations of the pilot tests for the technology is included as Figure 3.
The objectives of the stream investigation !§_are-to confirm groundwater discharges to the stream as
suggested by the slope aquifer model by:
• collect!llil samples that are representative of the groundwater beneath the stream bed, and
• collecting surface water samples from the stream;;--and
Note: The italicized portion is left unedited from the original draft although it is mostly been superseded by
information gained during the stream inflow pilot test which is incorporated into the remaining field actives.
Due to the local hydrogeo/ogic conditions, a temporary monitoring well system was determined to be the
best alternative for collection of the groundwater data.
The proposed pilot test will be performed to evaluate the best method for installation of these wells before
performing the full scale investigation. The two methods that will be evaluated by the pilot test are:
• drive point wells, and
• hand/power augured wells.
Therefore, these two methods are discussed in the following sections.
4.1 Stream Investigation Pilot Test
Because part of Stream C is off site and will require off-site access agreements, the pilot test will be
performed at on-site locations to evaluate the effectiveness of the proposed procedure.
4.2 Pilot Test Objective
The objective of the pilot test is to determine which of the proposed methods is the most time and cost
effective.
4.3 Proposed Groundwater Sampling Methods
The following sections provide details for installation of the drive point sample points and hand/power
augured temporary monitoring wells.
4.3.1 Drive Point Method
The drive point system consists of two basic components.
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112-inch ID by 4-foot long stainless steel drive rod
slide hammer
The drive rod is tapered and perforated on one end and threaded on the other end. The slide hammer is
threaded so it will attach to the drive rod. The slide hammer is used to install the rod to the proper depth
and extract the rod upon completion. The steps for installation and extraction of the rod and collection of the
water sample are provided below.
1) SuNey the sample locations on the portion of the stream to be investigated.
2) Decontaminate the drive rod.
3) At each location, using the drive point and slide hammer, determine the depth of sediment on the
bottom of stream at three points.
a. The drive point will be installed at the point with the maximum sediment thickness.
b. If no sediment is encountered at a given location (rock bottom), the sample crew will
attempt to find "soft" areas or fractures in the rock where the drive point can be driven. If no
"soft" areas or fractures are found, this will be noted in the field notebook and the sample
crew will proceed to the next location.
4) After installation of the dn"ve point, the sample crew will initially evaluate whether the rod is properly
sealed and the water in the rod is representative of the groundwater.
a. Using a peristaltic pump, the water will be purged from the drive rod and allowed to return to
static level.
b. Measure the level of the water in the drive rod and stream relative to the top of the drive rod.
If the levels are different the drive rod will be considered adequately sealed and the
sample crew will proceed with sample collection procedures.
If the water levels are the same in the drive rod and the creek, then field parameters will
be measured to evaluate if the rod is properly sealed. ff, based on the field parameters,
the rod is not considered adequately sealed, the sample crew will attempt to seal the
drive rod by driving it deeper.
ff the rod cannot be driven deeper, another location will be selected0
The water sample will not be collected until the sample crew is satisfied that the drive
rod is adequately sealed.
5) After the drive rod has been properly installed, field parameters "(pH, conductivity, temperature and
ORP) will be collected using a peristaltic pump and multi-parameter water quality meter with a flow
through cell. Parameters will be collected from the water in the stream and in the drive rod. A
comparison of the field parameters will be used as the final evaluation to determine if the drive is
adequately sealed, and therefore the water in the drive point is representative of groundwater.
a. If the field parameters are similar the water will not be considered representative of the
groundwater and a sample will not be collected. Steps 3 and 4 will be repeated.
b. If tf:ie field par:.ameiers-are--differenl-the-water-,~~·11 Go G0ASi€ferefi-+epresemative-ef-#1e
~mple-wiU~&-GOlleGte4
6) Collect water sample for dielhy/efle-0xideDEDO using tho peristaltic pump (reference water
sampling procedure)
7) Remove drive the rod using the slide hammer.
4.3.2 Hand/Power Auger or Post Hole Temporary Wells
If the drive point method is not successful in achieving the desired depth, the pilot test field crew will attempt
to install the temporary monitoring wells using a hand auger or post hole method
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Initially, the hand auger method will be used. If the hand auger is not successful in achieving the desired
depth, a posthole digger will be used. We anticipate that most likely a combination where the hand auger is
used to start the hole and the posthole digger is used to remove larger gravel and cobbles and to ream the
hand auger boring to the desired depth will be most successful in installing the temporary moniton'ng wells
A PVC casing may be used to prevent collapsing of the boring once groundwater is encountered.
Even though the hand auger/posthofe method proves to be effective for installing the temporary monitoring
wells, a power auger may be tested to evaluate if it can be used to increase the time efficiency of the
process. This decision will be at the discretion of the field geologist.
The steps for installation of the temporary monitoring wells and extraction of the rod and collection of the
water sample are summarized below.
• Decontaminate the hand augerlposthole digger.
• (nstall the temporary monitoring well materials as detailed in Part II (FSP), Section 3.
• Measure the turbidity of the water. If the turbidity of the water is greater than 10 NTU, develop the
well as detailed in Part If (FSP), Section 3.
• Collect groundwater sample for e.-euwieRe e>OOeDEDO as detailed in the-Part II (FSP), Section 6.
• Properly abandon the temporary monitoring wells as detailed in Part II (FSP), Section 3.
• Concurrently, collect a sample of the surface water adjacent to the temporary monitor well.
4.4 Stream Investigation Pilot Test Results
Subsequent to submittal of the WP and FSP with EPA approval the steam investigation plot test (SIPT)
was completed on April 2 and 3 2009 to evaluate the best methods for collecting representative
groundwater samples from beneath the stream bed. In additions to the methods described in Sections 4.3.1
and 4.3.2 at the recommendation of Jon Vail EPA Region 4 Science and Ecosystems Support Division
(SESD) a "'Henry sampler'" was evaluated during the pilot test. The Henry samgler is similar in application
to the drive goint sampler that was proposed in the FSP except it is smaller and more flexible. Due to its
size and flexibility it was decided that it may prove easier and more cost effective to install and therefore.
was added to the list of methods to be evaluated during the SIPT.
A report summarizing the findings of the S!PT was submitted to the EPA on May 2 2009. The conclusions
of the report stated:
'"Conductivity DO and QRP were the most useful indicators in determining that the Henry sampler
was sufficiently sealed and providing a representative groundwater sample.·· and
··use of the sampling tube as a manometer provided more information on whether the sampling
point was sufficiently sealed to provide a representative sample and if the stream was in a
recha,ging or discharging condition."
All the field narameter measurements will be used in the sample evaluation· however as stated in the S!PT
Report the parameters that will most likely be useful are conductivity DO ORP and the relative water level
as determined using the sampJ~UJ.Q.~ manometer
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While the SIPT was valuable in helping to determine which parameters would be useful in evaluating when
a sample would be considered representative the limited data were not helpful in quantifying the evaluation
process i.e. determining a relative percent difference (RPO) for the field parameters with respect to the
surface water sample. Furthermore because there are numerous variables involved /e.g. sample location
sample time flow condition weather conditions etc.) we do not believe that additional data would help to
better quantify the evaluation process by establishing an RPO for each parameter. Therefore the
determination of whether a sample is "representative" of site conditions will be based on the judgment of the
field geologist and project team.
A full-scale stream investigation will be conducted on approximately 1 800 feet qf Stream C between the
dam of the recreation pond to its confluence with Stream A that lies on the Celanese or George Camp
properties. Surface water and groundwater samples will be collected approximately every 100 feet along
the specified area of Stream C. Additionally samples may be collected where prominent surface drainage
features discharge to Stream C. A map showing the location of the area to be investigated is included as
Figure 4.
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5.0 Stream Gauge Installation
field event
completed during March 2009
Seven stream gauge stations will be installed during the Supplemental Investigation in the approximate
locations shown on Figure 5. A schematic drawing of the proposed stream gauge is included as Figure 6.
The following procedure will be used for construction of the stream gauges. The task hazard analysis that
will be followed during the construction of the stream gauges is included in Appendix A of the HASP.
1) Procure the required material specified in the Stream Gauge Schematic Drawing as shown on
Figure 6,
2) Mobilize personnel with the required materials to each of the stream gauge locations shown on
Figure 5.
3) Assemble the stream gauge as shown on the Stream Gauge Schematic Drawing (Figure 6).
4) Layout the holes for legs of stream gauge and the benchmark. When laying out the holes, if
possible, place the holes for the stream gauge so the hole nearest the water is within approximately
6 feet off the edge of the stream so the stream level measurement can be taken using on 10-foot
section of electrical-metallic tubing (EMT).
5) Dig the holes for the stream gauge a minimum of 6 inches in diameter by 24 inches deep
6) Dig the holes for the benchmark a minimum of 6 inches in diameter by 1 B inches deep.
7) Place the legs of the stream gauge into the holes
8) Using a level, plumb and level the legs and crossbar of the stream gauge, as appropriate.
9) Using a level, plumb the benchmark.
10) Mix and place the concrete in the holes taking care not to get concrete on the exposed pipe and
fittings.
11) Check the level and plumb of the stream gauge and benchmark after placement of the concrete
12) Use a metal brush to remove concrete spatter from the exposed pipe and fittings. Paint the stream
gauge with Rustoleum™ (or equivalent) high visibility yellow spray paint.
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6.0 Long-Term Monitoring and Sampling
The groundwater sampling events will consist of the collection of:
• groundwater elevation data from monitoring and production wells,
• groundwater samples from selected monitoring and former remediation wells, and
• surface water samples.
The following sections provide procedures for data collection.
6.1 Fluid Level Measurement
Fluid level measurements will be collected from accessible monitoring and former remediation wells
production wells on site using the procedures described in the following section. A map showing the
location of the monitoring wells is included as Figure 7. The objective of this procedure is to provide
consistent measurements of water elevations for use in construction of a site potentiometric map.
Groundwater level data will be collected from accessible monitOring and former remediation wells using an
electronic water level indicator. In wells where DNAPL is suspected, measurements will be collected using
an electronic interface probe capable of measuring the depth to water and depth to DNAPL. Levels will be
measured from the mark on the top of the well casing to the nearest 0.01-foot. If there is not a mark on the
well casing, the measurement will be taken from the highest point on the well casing. For production wells,
the level will be measured from the appropriate opening in the well seal or the top of the drop pipe that is
installed through the well seal.
In general, the following procedures will be used for collection of water level data.
1. Decontaminate equipment used for groundwater monitoring according to the procedures provided in
Section 4.0.
2. Remove well cap. If well is not vented and under pressure, it may be necessary to allow time for
the water level to equilibrate.
3. Lower the probe into the well until it is activated by contact with the product or water. Adjust
sensitivity (if available), if needed.
4. Align the measuring tape with the measuring point and read the depth to DNAPUwater to the
nearest 0.01 foot.
5. Re-measure the water/DNAPL levels to confirm the initial reading.
6. Document the water level on the field form noting conditions that may affect water level (i.e , well or
a nearby well is pumping).
6.2 Monitoring Well PURGING and sampling
Groundwater samples will be collected from selected monitoring and former extraction wells. A summary of
the groundwater sample analytical methods, holding times, sample preservation, and sample volume for
each of the required laboratory methods is provided as Table 1, and a summary of the analytes for each
sampling location is included as Table 2. The wells identified for sampling are a subset of the monitoring
and former remediation wells shown on Figure 8.
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The following sections provide procedures for purging and sampling of monitoring and former remediation
wells.
6.2.1 Pre-purging
Historically, the sampling is generally performed in accordance with the low-flow procedures with the
exception that the maximum allowable drawdown (0.2 feet) is routinely exceeded because of the low well
flow conditions at the site. The sampling is typically performed using peristaltic pumps operatlng at their
lowest practical speed to minimize the groundwater flow rate {60 to 100 milliliters per minute). At these flow
rates, drawdowns between 2 to 6 feet are routinely observed in the wells.
Because of the observed drawdowns, a request for modification to the purging procedure was submitted to
the Agency on August 7, 2006. The modification was requested so that: 1) concerns regarding drawdowns
exceeding 0.2 feet could be minimized: 2) the sampling procedure would be better suited to the low flow
conditions at the site; 3) the groundwater samples would be as representative of groundwater conditions as
practical; and 4) the sampling could be performed in compliance with the established procedures. The
request was approved by EPA on August 7, 2006, and is summarized below.
The procedure to be used for low-flow/low-stress purging and groundwater sampling of monitoring wells
follows.
Pre-purge the well the day before the well is scheduled to be sampled. The pre-purge will include the
following:
1. Carefully open the monitoring well taking special to care to check for biological hazards, (ants, bees,
wasps, spiders, etc.).
2. Measure the depth to water using an electronic water level tape or interface probe as appropriate.
3. Using a disposable HOPE bailer, remove the water in the well casing to within approximately 1 to 2
feet of the top of the screen.
4. Allow the water level in the well to recharge, preferably overnight, but at the least to a minimum of
1 0 feet above the top of the screen, where practical, before purging and sampling.
5. During pre-purging of the well, monitor the drawdown in the well in an effort to prevent the water
level from dropping into the screened interval. These data will be used in evaluating the validity of
the sample if the results are significantly different from previous results.
6.2.2 Monitoring Well Purging and Sampling Procedure
Selected monitoring wells will be purged and sampled using a low-flow/low stress method. Due to the
shallow depth to groundwater (<25 feet), most of the wells will be purged and sampled using peristaltic
pumps. The remaining wells will be purged and sampled using a Grundfos Redi-flo TM submersible pump.
During purging, water quality field parameters will be measured using a multi-parameter water quality
instrument. Once the·water quality field parameters have stabilized, a water sample will be collected directly
from the pump discharge. In addition to the water quality field parameters, ferrous iron (Fe2+)
measurements will be collected from monitoring wells using field test kits.
After pre-purging, use the following low-flow/low-stress procedure for purging and groundwater sampling of
the selected monitoring wells.
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1. Carefully open the monitoring well taking special to care to check for biological hazards, (ants, bees,
wasps, spiders, etc.). Inspect the condition of the monitoring well checking especially for items that
might affect the structural integrity of the well {i.e., damage to protective cover, cracks in suriace
pad). Remove the well cap and, if necessary, allow the well to vent.
2. If using an electric submersible pump, attach the polyethylene tubing to the pump.
3. If using a peristaltic pump, a stainless steel sampling nipple may be attached to the end of the
tubing to facilitate placement of the tubing into the well.
4. Slowly lower the electric submersible pump, or the peristaltic tubing, into the well to the midpoint of
the well screen. If the water level is below the midpoint of the screen, the pump intake should be
placed at the midpoint of the water column.
5. Measure the water level with the pump in the well before starting the purge. Allow the water level to
return to within approximately 95 percent of the static water level before starting the pump.
6. Calculate the volume of water in the well using one of the methods given below. It should be noted
that while the wells are being purged using a low flow/low stress method, the we!I volume will be
used as a guideline to determine the frequency at which to collect field parameters.
V = 0.41 d2h where:
V = volume of water in well in gallons/foot
d = diameter of well casing in feet
h = height of water column in well in feet
(depth to water-depth to bottom)
or
V= Xh where:
V = volume of water in well in gallons/foot
X = well casing factor
(X = 0.17 gallons/foot for 2-inch well)
(X = 0.40 gallons/foot for 4-inch well)
h = height of water column in well in feet
(depth to water -depth to bottom)
7. Start the pump at the lowest practical flow rate and periodically measure the drawdown in the well.
The pumping rate should cause minimal drawdown in the well (less than 0.2 feet), and the water
level should stabilize. The pumping rate may be reduced, if needed, to the minimum capabilities of
the pump to avoid pumping the well dry and ensure stabilization of indicator parameters. If there is
no drawdown in the well, the pumping rate may be increa·sed to facilitate collection of groundwater
samples. Water level measurements will be taken for each well volume until the water level has
stabilized. Precautions will be taken to avoid surging the pump as well as suction loss.
8. During purging, the following water quality parameters will be monitored: pH, conductivity,
temperature, turbidity, DO, and ORP.
9. Water quality parameters will be recorded to the accuracy, and in the units. provided below.
a. pH -±0.1 standard units (SU)
b. conductivity -0.1 millisiemens/cenltmeter (mS/cm)
c. dissolved oxygen -0.1 milligrams/liter (mg/L)
d. temperature -0.1 degrees Centigrade (0C)
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e. ORP - 1 millivolts (mV)
f. turbidity - 1 NTU
10. Stabilization of water quality parameters will be sufficient when three consecutive readings of the
parameters provided below are within the following limits.
a. pH-±0.1 SU
b. conductivity -±10%
c. temperature is constant
d. turbidity -<10 NTU
11. As previously stated, typically, the well volume calculation will be used as a guideline to determine
the frequency at which to collect field parameters; however, there is no set criteria for establishing
the minimum sets of measurements required to establish stability of parameters. Therefore, if the
well volume is small or large, the well volume frequency may be modified (measurements may be
taken more or less frequently, respectively) to evaluate the parameter stability.
12. Past experience at this site has shown that wells typlcally stabilize between 3 and 5 Q1![9gwel!
volumes. Therefore, if the parameters have not stabilized after 5 ~wel-l volumes, ii is up to the
discretion of the site manager whether to sample the well or continue purging. l-f----ihe-p-H-and
oonductivity -have--stabillze-0-and--the-turbidfty-is--decreasing--and .. approaching -an-accep!ab!e-leveh .. lhe
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13. If a well pumps dry, it will be considered sufficiently purged-_. ..... \n-this .. case-,. .. it-is-flot necessary-to
purge-3-well---volumes. The well will be sampled as soon as the well has recovered sufficiently to
collect the required sample volume. It is important to note the wells should be sampled as soon as
practical after completing the purge.
14. The purge water will be collected in closed-top 5-gallon buckets. The water will be handled as
described in Section 5.0.
15. Once stabilization has been documented, samples will be collected in pre-preserved sample
containers. Sample containers will be filled by allowing the pump discharge to flow gently down the
inside of the container with minimal turbulence. The samples will be collected in the following order.
a. voes -including ElietRylene eHiEleDEDO
b. ethylene glycol
c. SVOCs including Qew-ThennDOWTHERM™A (1,1-biphenyl and biphenyl ether) and TICs
where appropriate
16. The sample date and time will be noted on the sample label and the sample placed into a cooler on
ice.
17. After sample collection, the IDW will be disposed as described in Section 5.0 and the well secured.
6.2.3 Former Remediation Well Purging and Sampling Procedure
Groundwater samples will be collected from selected former remediation wells. Because the former
remediation wells have not been pumped for some time, the well pumps will be started and allowed to run
for at least 5 minutes or until the samplers determine that alt.stagnant water between the pump and the
sampling port has been purged before initiating the sampling procedures. Measurements of pH, specific
conductance, temperature, turbidity, ORP and DO will be recorded at the time of sampling. Samples will be
taken from the wellhead sampling port nearest the well making every effort to minimize agitation and
aeration ofthe sample.
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The procedure to be used for purging and sampling the former remediation wells follows.
1. Carefully inspect the former remediation well taking special to care to check for biological hazards,
(ants, bees, wasps, spiders, etc.)
2. Inspect the condition of the former remediation well checking especially for items that might affect
the structural integrity of the well. Determine the location of the groundwater monitoring and
sampling points.
3. Measure the water level in the well through either an opening in the well seal or a drop pipe that is
installed for that purpose.
4. Hook up the flow through cell and water quality meter to the sampling port on the wellhead.
5. Record the totalizer reading.
6. Open the valve and start the well pump. Adjust the flow rate to minimize drawdown in the well.
7. During purging, the following water quality parameters will be monitored: pH, conductivity,
temperature, turbidity, DO, and ORP. Readings will be collected every well volume until the
parameters have stabilized.
8. Water quality parameters will be recorded to the accuracy, and in the units, provided below.
a. pH -±0.1 SU
b. conductivity -0.1 mS/cm
c. dissolved oxygen -0.1 mg/L
d. temperature -0.1 °C
e. ORP-1 mV
f. turbidity -1 NTU
9. Stabilization of water quality parameters will be sufficient when three consecutive readings of the
parameters provided below are within the following limits.
a. pH-±0.1 SU
b. conductivity -±10%
c. temperature is constant
d. turbidity -<10 NTU
10. If the parameters dg not stabilize it is up to the discretion of the site manager whether to sample the
well or continue purging.
•10,_11_. __ Once field parameters have been documented, samples will be collected directly into pre-
preserved sample containers from the sample port. The sample port should be adjusted to
minimize aeration of the sample. The samples will be collected in the following order.
a. voes including 9ietRyleAe SH-ideDEDO
b. ethylene glycol
c. SVOCs including Qew.ThermDOWTHERM TMA (1, 1-bipheny1 and bi phenyl ether) and Tl Cs
where appropriate
11. The sample date and time will be noted on the sample label and the sample placed into a cooler on
ice.
12. After sample collection, dispose of the IDW as described in Section 5.0 and secure the well.
6.3 Surface Water Samples
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When necessary, surface water samples will be collected using a peristaltic pump. During surface water
sampling, water quality parameters will be collected using a appropriate water quality meters and a flow
though cell. The procedure for surface water sampling is provided below.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
6.4
Decontaminate equipment used for sampling according to the procedures provided in Section 7.0 of
the FSP.
Attach a stainless steel sampling nipple to the end of the peristaltic pump discharge tubing
(polyethylene).
From the bank area, throw the stainless steel nipple, with attached tubing, into the stream in an area
of running water (i.e., do not collect the sample from an isolated pool).
Run the lubing lo the peristaltic pump and flow through cell.
Purge for approximately 1 to 2 minutes to clear the intake and tubing of sediment or debris that may
have entered the intake during placement into the stream (the purge water can be discharged into
the canal); stabilization of field parameters is not required during purging.
Record pH, specific conductivity, temperature, ORP, and DO on the field form and in the field
notebook.
Collect the surface water sample in pre•preserved bottles provided by laboratory.
Properly label the sampte bottles and pack securely in a cooler with ice.
Collect quality control samples as required.
Complete the necessary field documentation.
Quality Control (QC) Samples
Groundwater quality control (QC) samples will include.
• equipment blanks
• field blanks
water blanks
• duplicate samples
• matrix spike/matrix spike duplicate (MS/MSD) samples
• trip blanks
Equipment blanks, field blanks, water blanks, duplicates and MS/MSD samples will be collected at a rate at
the rate indicated in the QAPP. A trip blank will be included with each cooler submitted to the laboratory
containing samples for analysis of volatile organics. A summary of the QC samples including sample type,
frequency, location (if appropriate), and analytes is provided in the QAPP.
6.5 Equipment Calibration
Equipment used for measurement of water quality parameters will be calibrated before being brought to the
field for use. The equipment vendor will provides certificates of calibration for each piece of equipment
Operational checks will be performed at the beginning of each work day, and as warranted during the day.
If the results of the operational checks are outside the ranges provided below, the equipment will be re•
calibrated. The ranges are as follows.
• pH -±0.1 SU of the standard solution
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conductivity -±1 0 % of the standard solution
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concentration based on the temperature and barometric pressure
•
•
temperature -not required (calibration required every 4 years, equipment is less than 4 years old)
ORP -not required (standard for ORP has not been established)
• turbidity -±10 % of the standard solution
6.6 Laboratory Requirements
The laboratories will be required to submit Level 3A data to AECOM. Submittals will be made in both hard
copy and EDD format to Bryon Dahlgren.
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7.0 Field Decontamination Procedures
The objective of this procedure is to provide a method for the removal of contaminants of concern from
sampling and other field equipment to concentrations that do not adversely impact the investigation
objectives. This procedure is intended for use by field personnel for field cleaning of sampling and other
equipment. Deviations from these procedures must be approved by the project manager and documented
in the field notebook.
Every effort will be made to minimize decontamination of field equipment. When possible, a sufficient
quantity of equipment and/or supplies will be brought to the field to complete the work without field
decontamination. Disposable equipment/supplies will be used where appropriate. If field decontamination
is required, the procedures described in the following sections will be used.
7.1 Decontamination Materials
The decontamination materials referred to in this procedure are defined as follows.
Soap shall be a standard brand of phosphate-free laboratory detergent such as Liquinox®.
• Tap water may be used from a potable source at the plant or from a municipal treatment system.
Plant process water will not be used for decontamination.
• Deionized, Type 2, laboratory (deionized) water is tap water that has been treated by passing
through a standard deionizing column and filtering through carbon. Deionized water can also be
purchased through a local retailer.
Laboratory detergent and rinse waters used to clean equipment shall not be reused.
7.2 Disposal of Cleaning Solutions
Procedures for the safe handling and disposition of IDW, including used wash water and rinse water, are
included in Section 8.0.
7.3 Safety Procedures for Field Decontamination
Field personnel will exercise caution and applicable safety procedures will be followed when handling
cleaning materials. At a minimum, the following precautions will be taken in the field during these cleaning
operations.
• Safety glasses or goggles, and nitrile gloves will be worn during cleaning operations.
• Eating, drinking, chewing, or any hand to mouth contact will not be permitted during cleaning
operations.
7.4 Handling of Cleaned Equipment
After field cleaning, only personnel wearing clean gloves will handle the equipment. ln addition, the
equipment will be moved away {preferably upwind) from the cleaning area to prevent re-contamination. If
the equipment is not to be immediately re-used, it will be stored in clean plastic bags or wrapped in
aluminum foil.
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7.5 Fieict Decontamination Procedures
The following procedures are to be utilized when equipment must be cleaned in the field.
7.5.1 Sampling Equipment and Supplies
The following procedures are to be used for sampling equipment used to collect groundwater.
1. Clean with tap water and soap, using a brush if necessary, to remove particulate matter and surface
films.
2. Equipment may be steam deaned (soap and high pressure hot water) as an alternative to brushing.
Sampling equipment that is steam cleaned will be placed on racks or saw horses at least 2 feet
above the floor of the decontamination area. Special care will be taken when steam cleaning PVC
or plastic items.
3. Rinse thoroughly with tap water.
4. Rinse thoroughly with deionized water.
5. If the equipment is not to be used immediately, store in equipment in a plastic bag or wrap with
aluminum foil.
7.5.2 Water Level Meters
The following procedures are to be used for water level meters used for collecting water measurements.
1. Wash with soap and tap water.
2. Rinse with tap water.
3. Rinse with deionized water.
If the water level meter has contacted phase DOWTHERM TMA in well F-55, then the procedure will be
repeated.
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7.5.3 Submersible Pumps
The pumps will be cleaned before use and between each well. The following procedure is required.
1. Fill an appropriately-sized container with soap and tap water. Place the pump in the container and
scrub the outside of the pump with a brush. Turn on the pump at a rate of approximately 2 to 3
gallons per minute (gpm) and pump until soapy water can be seen flowing from the discharge hose.
Allow the soapy water to flow through the pump for a minimum 10-15 seconds.
2. Fill an appropriately-sized container with tap water. Place the pump in the container and pump at a
rate of approximately 2 to 3 gpm until water free of suds can be seen flowing from the discharge
hose. Allow the suds-free water to flow through the pump for approximately 10-15 seconds.
3. Fill an appropriately-sized container with deionized water. Place the pump in the container and
pump a sufficient volume to purge the tap water from the system.
4. Place the pump in a clean plastic bag to protect until use.
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8.0 Investigation Derived Waste
Every effort will be made to minimize the quantity of IDW generated during the site activities. The
management of IDW is discussed in the following sections.
8.1 Types of IDW
Materials that may become tDW include:
• personal protective equipment (PPE) including disposable gloves, ear plugs, etc.,
• disposable equipment and supplies that would include polyethylene tubing and bailers,
• broken or unused sample containers, sample container boxes, tape, packing and shipping
materials, etc.,
• groundwater from well purging and sampling, and
• decontamination fluids.
8.2 Management of Non-Hazardous IDW
Non-hazardous IDW in the form of trash and debris and used PPE will be disposed of in the on-site facility
dumpsters designated by plant personnel.
Groundwater generated during well purging and sampling will be collected in closed-top buckets and
discharged to the plant wastewater treatment system at a point established with plant personnel. The
quantity of water purged from each well and placed into the wastewater treatment system will be recorded
on the well purge form.
8.3 Management of Hazardous IDW
Hazardous IDW ls not expected to be generated during these field activities.
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$,Jinpli,,g\01;,tl Fin~I Sh~)t,y_?OQ~_\Ngik
P!~n dv.C '-0~7,,n,,.,i,; ,;,,.~
S.,ll,n(l$l,3iy,,., <)n'1¾1''-'n'0..%!,,p\01M! Furn! WP f\lhl OAP.>
2-1 July 2009
Table 1
Summary of Analytical Requirements
Celanese Fibers Operations Site
Shelby, North Carolina
Matrix
groundvf ater/
5urface water
groundvf ater/
:,urface water
groundvfater/
5urface ~ater
groundwater/
surface water
Parameters
voes (82€QG8260B)
Gietllylefle-G><i<!eDEDO (8260B SIM)
SVOCs (6270D)
(DOWTHERMTM/\ ORiy)
ethylene glycol (801 SC)
"OGs (@~eGG)
diethylene-oxi<leDEDO (8260B SIM)
soi~ ethylene glycol (8015C) 2~oz glass
Notes:
HCI -hydrochloric acid
VOC.§. -EPA Target Compound List (TCL) volatile organic compound.§.
DEDO -diethylene dioxide
SVOC.§.-EPA Target Compound List (TCL) semi-:volatile organic compound.§.
C -Centigrade
ml -milliliter
oz -ounce
1 Holding time begins at time of collection.
Container
3 x 40-ml glass,
Teflon-lined septum sealed cap
4 x 40-ml glass,
Teflon-lined septum sealed cap
2 x 1000-ml amber
1 x 40-ml glass
2 soElium Bisulfate preserveEI
1 FRethaAol 13reserveEI
2 oz glass
4-oz glass
ice to 4°C
Preservation
iceto4°C
HCI pH< 2
ice to 4°C
HCI pH< 2
iceto4°C
ice to 4°C
ice to 4°C
Maximum Holding Times1
Extraction Analysis
.:o-------i Formatted: Indent: Left: 0.1", Right: 0.18"
14 days
7 days ---· / Formatted: Indent: Left: 0.1 ", Right: 0.18"
14 days
~---1 Formatted: Indent; Left: 0.lH, Right: 0.18"
14 days
14 days· j Formatted: Indent: Left: ·0.01"
I Samele Location
C-49
F-55
G-50
1-57
K-28
T-35
V-23
V-65
AA-54
CC-33
00-SBR
GG-61
11-65
KK-55
IT-5
IT-6 .
IT-7
OT-2R --------
PEW-1
PEW-3
PEW-4
TD-2
TD-3
TD-4
Tl-2
SW-4 ----------
SW-7
Table 2
Interim Monitoring Program Implemented March 2009
Celanese Fibers Operations Site
Shelby, North Carolina
voes with Historic SVOCs g:lus
Di ethylene DowTllerrnDOWTHERM
DioOxide A'" Ethvlene Glvcol
X .. .
X X X
X .. X
X .. X
X .. X -
X .. .. ___ ,,,_, __
X .. X
X .. X
X .. X
X .. ..
X .. X
X .. ..
X .. X
X .. X
X .. X
X .. X ------------
X .. X _, _____ ,,,_ ----·---X .. X ----------------·· X X ..
X X ..
X X ..
X .. ..
X .. ..
X .. ..
X .. X -----·· --------X .. .. -·--
X .. ..
Field
Parameters 1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
..
..
1 Field Parameters -depth to groundwater, dissolved oxygen, oxidation-reduction potential, pH, specific conductance,
temperature, turbidity
' :····i Formatted· Font· 10pt
Formatted: Font: 10 pt
Formatted: Font: 10 pt
Formatted: Font: 10 pt
Formatted: Foot: 10 pt
P-68
M-44 ____ ,, ____ , __
.
Table 2 (saRliRued)
200912010 Expandet:11 Charasterization
Celanese FiheFS Operations Site
Shelby, "•Flh CarnliRa
voes •.-.•ith
llieth
X
X
X
~--· ----11---X
X
X
X
MM-230
1#14-0e
NN-240 ----
bb-44-0
bb-1+6
bb-296
IT-3R
IT-9
~
OT-3
GT-6 --·-----= HH-48
HH-77
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
·-····
X
X
X
X
X
X
X ____ ,_ ......... .
X
X ----.... -... ,. , ____ ,x __ _
X
---
x ___ ,
X
X
X
X
X
X
X
X
X
X
x
~-WeHs----aM---f}arameters 0A this table will Be sampled the sesonEI Ralf ef 2QQ9 and-the first Ralf of 2Q1 Q in
sonj 1.J n Gtio n with--these---iR--the-terim-Monitor~m 0 n tR e pre 1iou-s-tablec
2 FielEI Parameters_ Ele13lA ta §Fe1:mdwater, GissolveEl 01iy§en, eiiiElatien rethJGtien fclOlential, pH, spesifle
eendt>elanse, teFRperat1,ire, t1.ir8i8ily
Table 3
2009/2010 ExQanded1 Characterization
Celanese Fibers Ouerations Site
Shelby, North Carolina
Sam&;!le TCL Oiethylene TCL SVOCs including Ethylene Field DowThermDOWTHERM Location voes Dioxide A™ and TICS Glycol Parameters2
C-49 X X X X
D-56 ----X --X
D-88 ----X --X
F-55 X X X X X
G-50 X X X X X
H-79 ----X --X
1-57 X X X X X
J-29 ----X --X
J-59 ----X --X
K-28 X X X X X
K-58 X X --X X
M-44 X X X X X
0-25 ----X X X
0-59 ----X X X
P-58 X X X X X
Q-33 X X X
T-35 X X X X X
V-23 X X X X X
V-65 X X X X X
W-23 X X X X X
Z-78 X X X X X
AA-54 X X --X X
BB-18 X X --X X
CC-33 X X --X X
DD-58R X X --X X
GG-39 X X --X X
GG-61 X X --X X
HH-48 X X --X X
HH-77 X X --X X
11-65 X X --X X
11-Nnew X X --X X
KK-55 X X --X X
LL-110 X X --X X
LL-175 X X --X X
LL-295 X X --X X
MM-128 X X --X X
MM-170 X X --X X
MM-280 X X --X X
NN-105 X X --X X
NN-240 X X V X X
IT-1 ----X --X
IT-2 ----X --X
SamQle TCL Diethylene TCL SVOCs including Ethylene Field
Location voes Dioxide Oow+hermDOWTHERM Glycol Parameters2
A 1M and TICs
IT-3 ----X --X
IT-4 ----X --X
IT-5 X X X X X
IT-6 X X --X X
IT-7 X X X X X
IT-BR X X --X X
IT-9 X X --X X
OT-1R X X --X X
OT-2R X X --X X
OT-3 X X --X X
OT-5 X X X X X
PZ-12 X X --X X
PEW-1 X X X X X
PEW-3 X X X X X
PEW-4 X X X X X
TD-2 X X --X X
TD-3 X X --X X
TD-4 X X --X X
Tl-2 X X X X X
SW-1 --X ----X
SW-2 --X ----X
SW-3 --X ----X
SW-4 --X ----X
SW-5 --X ----X
SW-B --X ----X
SW-7 --X ----X
SW-8 --X ----X
SW-9 --X ----X
SW-10 --X ----X
SW-11 --X ----X
SW-12 --X ----X
SW-13 --X ----X
1 Wells and garameters on this table will be samgled the second half of 2009 and the first half of 201 0
2 Field Parameters degth to groundwater dissolved oxygen oxidation-reduction gotential ~H sgecific
conductance temgerature turbidity
..
i
-I n a c....------
,,,
r-, 11-1 ' I , __ _;
l~ .
i
--
' I
I
\
n u
I ',,
' \
\
I 4--
J ~ -;~
\ , I
I -
i \ ' y·l ,:
\
I
l_
-~
JULY 2009
SCALE
CNA HOLDINGS, INCJTICONA SHELBY, NORTH CAROLINA
\
\ .
200'
79750
I
I
AECOM
I
I
I)
I \
I
O' 400' E-SCALE
FIGURE 2
DEEP MONITORING WELL LOCATION
11-65 -NEW
JULY 2009
CNA HOLDINGS, INCJTICONA
SHELBY, NORTH CAROLINA
800'
79750
$FILES$ $DATES ~ .. ,, !lll '• '""' \) \ ··, --1 ( ! \ ~ _ .. , ·---.. \i ; ro \ \ '·--, / ,•·,,.) 1 • I '\ r~'',', ~35 \ .; •~ • f \ • •-.,---~ , I •4 \" _..-An 1 _,1/ j J"" • ~-~•-••.-• ,r:,.... /"' ~ / _ tflr:'."7 ✓ ... , , ,.,.....--~.. l __ ,..r ,,,. -~~--~ l l';f ...... ,/ ~-..... I\ :::;: ~ 1' J , 1 / • \ '/ ~~?"-~ -./:J, ---·-"/7' 1 1 I ~c '\ : -\'.b ' i ~<~•'""'-•·-· int ,~ ..... _,.. ' ,· i t ~..,/ / z1i · 1 1 / C1 ~~~" l::l / !/ /i / 1\ '/1 ( ~: \" ~-~~ .. ,-.. l~!J' 1\ I I /~I\ -en • 1/ ~"''//Ml -I: \If J' z 3: • \.. .-·· .,,,,. t · ~ ~.... I { 1 n:z ........... ~~c,:-... -.. , ) IJ' '\'' . "" ,,,w4.~ ;/ I ; \ I . . --··1•""' 'C:. '\ ,,'❖ ,.-,w 1,-' / / . ':Vol' -✓ 1 ;;II( ~. • !Jj ' •D : "l ""'r--} V f\ r, fl .~., : ('I ., •. -l :3~ ... :: o /Ji (J) / ~ !/ (ll ", ,.. 1'tJ / ,,,, ) I , \'1 .-,JJ-, ,• / i • ",.,,( t r, -U. J l // '!,, ~o (1 •1· <P I I\ ,t,, ''1'1 •· . o1\;,,.'\t!.,1!!-..-/ _....,,:..-,01• t • ..J/\ r,:, : 'st 1t l~.f-, , ,--.(. .,,;·/\. ,. ...,,, liJI I r• •v'_; i) r;; • u·: i Gb~ · 1/) I -:> ,.;. \ r, ... ') t?Y, -\ 1· ,..-.» ' -\i ' ( \ .J~ •~ >. ,..._ I ro >~-.::-,. : 1 l • Im,':':(: •. , _ __.~~ , • : \1 ; \ • e -~ ~~ !L. '\ .Ji ,\ • , i \ ,. (i-.. , • • \ •\i:~ 1 ll t \ \ , .... __ ·'-./ .---· \ \ \ . / i \ \ •'\'i;_1 ) If ' • 1\ t:i . , "• ,! :/ i'( \ \ 1, ! ,) . "{~ .• ,' ..... / 1b •-acar\ ·--Ji}/ l ,, "\ · ":--\\\ ., ,-..... \'\ • ...,_, U ( 1 I , I · ~ ,'\\~\ ~\--~v •": \__, g L.Jo:i \-,y\'' . \\\\ Jl,.'} It '-. .., _ _;::.& / J' ! '"-~..; ~: \ ___,..ir-7 '---7 '\ \\ · .\ \ \ --:i .. -~ , ~ : \ 1 ,,IJ' \\ , ll~-.:-.,...lr.:--)t \\• ' )\ \'~ "..,/ ',1)/f i \ .. /)f \\ -~--i ---= ~~1> 'l I ¥.~:~:-.-. -l ·-\ /' · ·.~ ,.~';:· \ , _ __,I I 11\-;-. ) ~ / -~~<-./I \, ', .. --~\~-:-,..~_,.,(;•·\::.----:-,-::.-..... ' ~ ' i I -' ·•-:o. C / \ 0: ti)\""> I '\ , ... '--:,,{'::./ .,,..--_,,,-_/\ ... .....----.J '-', (, ' "-·--; .) i / ! ti! ,L'--;., . \ ' \\>! l I• /!~,'-\ ')Y~-\ , I . .-.r.. ·~ C'\' \ \ ... \"( I i ~ ..,. l)!] I ('l :;;;;~ \ /%~'<:cti.J \ ,J 1·'1 l i,\-il_ \. >---· --~)'.')) \I // I-' -(~~j\t'>>;:~ ( \ ' I r!ftlt'. / .,._,..,._ ~_, /r,...,, ( \\j_ -.... c9q.}, JI,. , . I. ~--_;,:_'.::;!·-~ '-..... .. ; l ,, ":"" / .,r:-·--•-r, '../; ·-.--,,,., .•.. _ ·,' ----~ ' ., ,__.. .... _ .......... l /I -~ )> 11 (( 0 -.. 11 ,.,7:-.t"--"s_---,-,. ._ ' . , ., I \ ,. ---·----,, ... I " ·----·-· ,a·-m l \,. ,~ .. .,,. -;, ,.,d';:;,' JI'/ 1),;t'\::-\,--j.~ ~:-;..; --~---... , .~:,_...,~~.,....:...,-,-.._ ri1' ·1 i1 ' -~ ---...:::;--.-~--f'>----\ J -..~,1 l I ! ·. ' ~ _✓.,p;~ .. ' ·. ~ 0 \\ \'.~•),, :--.,~ ,. { ,,--..,,,·~, I~-Ct: )y--/_.;...:-;--:::: /4'1• ---\ \\ \ / ) . '--~~ .,.. ~ Ill ) '· \.\'.J'\· \ ---::::. ~ ./ ( Ii I . / I ., , \,, ! .,.., -• ,.,.,... ,.--""-··-'-;-_-:.,.t • ~.,.;, ( 1' ' , ,-....-I , , .• ~-••·--•• ---; .,, """" 1/)111 ;· / ~\~-I • ,--?~~-,-'-> """::"'-~·,, • I / ~ I ,,_ (; --,,::."~~' C l'I •• .,-' ( ;• \;.,...."-,,/ / ( ---"'-,, '",•'\'; ·t.J J ' • .,-_ ~Ji .,·----· ' r,----, i.f _.,./ ...,) j ! ":.~--..... ·(; /' ,,-; . '.J' .,.,-~ ... ,\ '' \f ::,(.f'\ i'r" ' . ,'--. . .· O·' \ \. ' a ~ <.: >_,,.? ,,... .... ,, , '\· ' '--.. .. , '•, ._.::.:_~ r· , \. ,--.... ~ '--i ...... . ·, \ ~-\' "• ·• \ V · rr;••' -u \ ,. \ ~ \ \ \ .l ,-•. -I Oren • Oi \ < I r ......... I .-· ....., r--~-~;ti \ \ ~ -...._,; -~ I . ' ,\) l ,,--.~ I --':! ·-·,,:, \ ~:I ;;1~ .. ,..'-:. '--r)....:=.:_~1I J/ /?-!. f _-//:_ •,J ,,.---, ..-I z~"jS:i;i ~", .... ~/~('/<, .. _,~( \ \.i ;-·.,., . ..,/ gG) ~ c ---....... //1/ ., .... ~· ~ , """ _ ·~ \ , ... , __J . ,; 5s: ;a ',---"'f \, , ________ '---· .. ...;.'-..-.:...··-...'••., .. rs. I' • ( ~o 0""'0 ffl • .. / I /_"> · ,,_.-' ,,..,,_ '·• --..., ... , • .. ,, '..,.) \ .'~•-• . ~~::;!::w '-1 1,1 re-.. -·-. ::-,......~ "'-· "• .. ··,,. -....-... -~=:,; ,....8 _z r.n , '/ } _,,;,-., '\ ,, .. ....._ "--.. "· ~z OG) 0 ~ "') I /•;• J/4 • '"s,, ,, ·-.._. '-·•-\ ''-., l> Z :r, O , / /~J• "~ ,.. ..... ,.__. , t CJ> fn . I . ~-~. -.......... --....:..:•-... -~, •·-._ 1,, / r _,,..-;r--... .,. " ,,--... t'--~--:__..J /"' __ , ~ I.' , .,, .. -----.., ,..-, .• :.--( f ,~-.._.,,-•• , ', \ ,-< I ,,.-• , "· "'·--, \ ·~ -.. "'...i ( . ·-..........;· r ;:; '·•\'> < I t ... ,. ___ . \ ... 1,--... J -•··•• ~ . .,-1 \.. \ \ \ ,,..., .... ,. '"'~-.L _ 'I,.,,,--~ •,.. ..,,_ ill] ' . ' . . t ~ X ~ rn " a ~ ffi " ~ ►
LEGEND
~ STREAM INVESTIGATION AREA
1200
79750
1200'
I
SOURCE, USGS 7 •5 ~CN: 1971 \__ -. .__ BLACKSBURG NORTH, 79750
see
DETAIL ----o
A
1.5" FLAT TOP BRASS SURVEY MARKER
16"MIN1MUM BURIAL
CONCRETE
2" TEE TX3'PIPE
2' MINIMUM
BURIAL
\"EMT
2" x 5' PIPE
' ' m DETAIL
B
Y.", a· THREADED BOC T ---f
t"EMTHANGER -----{j
1· SPACER ---m
Y,.· x 2" REDUCER BUSHING
Jl."xNUT~
DETAIL A
(EXPLODED VIEW}
NOT TO SCALE
AECOM
JULY 2009
f--S-, S" THREADED BOC T
I
~1"EMTHANGER
~Y,."NUT
2" • Y,.· REDUCER BUSHING
DETAIL B
(EXPLODED VIEW)
NOT TO SCALE
NOTES 1. All pipe & pip,1 fittings to be gatvanrzed steel, nominal 2".
2. EMT & fittings lo t,e galvanized
3. Concrete to t>e Sakrete or equivalent.
1'
SCALE
FIGURE 6
STREAM GAUGE
SCHEMATIC DRAWING
CNA HOLDINGS, INC./TICONA
SHELBY, NORTH CAROLINA
2'
79750
DD-58R8
AECOM
JULY 2009
O' 400'
I-
SCALE
FIGURE 7
WELL LOCATIONS
CNA HOLDINGS, INCJTICONA
SHELBY. NORTH CAROLINA
800'
I
79750
'I
0
DD-58RC, \
I
AECOM
JULY 2009
MONITORING WELL
EXTRACTION WELL
PIEZOMETER
SURFACE WATER POINT
400'
SCALE
FIGURE 8
GROUNDWATER SAMPLING LOCATIONS
CNA HOLDINGS. INCJT1CONA
SHELBY. NORTH CAROLINA
800'
I
79750
ID Task Name ~---~~~~~-~~==c--~~~=-~==~~~=~~-~~== -o· Shelby timellne output of 120508 mtg with EPA and NCDENR
-~oc,-,,~,,-coc,.s,--oc,.-,,-;;206~r",--o"ucc,~-o"""'cc'-o",-""--tq>'i",c1~t-o"tr_",-,-o"""'"--,~o"""'-t20g,c,--oc,c.,~~-"o,",_"o-_")'I
!
Duration Stan L---J20_09
I Otr_4_ l Ott 1
904 days Thu 1/1/091 -1--~
7-~ -,-
-4 _ _J ✓
Project Managemen1
0th~, S.uppo,t
Routine Reports
Ju~; -Otcembtr 2ooe Sem,annual Repon
January -June 2009 Semannual Report
J<J!y -Oec,-ml>er 200~ Semiannual Repon
January -June 2010 SeITTannual Repon =~-j'; Submit monrloring pl;rn (field sampling plan ror groundwater and surface
water)
-9--✓-Long Term Plan
-to--✓--2009 Cll3raderlzat,on (1ndiides ·existing surface waier ?(liflts)-
-,1-___ J
" ✓
13 ✓
" ✓
,s ✓
-·-11:;-·-· ✓-
" ✓ ---1s··
-191 ✓ -,,--j ✓
21 ~
-22--
-3~8 -,,-
" ,.-
35--
-35--
Submrl initial wci"rk plan"
GRUB OPT ii!an
Surlace wa1er preliminary mvesl,ga11on
II deep we! 1ns1a11a100n
Qualrty Assurance Poject Plan
EPA comments I approval (work plan. HASP. QAPP)
response to EPA comments
. cOmrTleiitS Re,,;.,:,.; Telei:<lrit!lrf!nce -
SVOC Teleconference
Submt ReV1sion Marked Plans
EPA approval o! re111.Sed pjans
Install Deep well at II location
Monrloring Events
Qt 2009 Momioring Event
Receive 01 2009 data
03 2009 Mcmtcrmg Event (incl. eq,anded characierizatlon)
Receive 03 2009 data
01 2010 Mon,toriiig°Ev'eiit (,Oci. expanded cnar&Clinzauon)
Receive 01 2010 da1a
03 2010 Momtoring Event
Recerve 03 2010 data
GRUB area
GRUB area inves1iqalion
lnrtial OPT Points
1nst311 oe<!p.11 wea dunng.Lati analysis (See task al>cve)
Oehneation OPT points
Rec;-,,,., l~b ,J~la
SCHEDULE OF ACTIVITIES I AS AGREED
JULY 16. 2009 TELECONFERENCE
Task
Spl,t
I I
CELANESE FIBER OPERATIONS SITE
SHELBY, NORTH CAROLINA
Progress
M•leslone
-522 days Tnu 111/09 i t-
522 <lays Th_u_ ~·~9 j (-::.,, ,-.....
-393-d-ays Tue 3131109 i ' -1 day Tue 3131/09 ! I 1 day Wed 9130/09 j
1 day Wed 3131110 !
' 1 day Thu 9130110 \
1 day Thu 1115109 J ·.-
1 day Thu 1115109
1 day Th\J111sio9
108 days ---Mon 3/V09
1 d.it---~-Mon 3/2/09
1 day Mon 312/09
1 day Mon 3/2/09
1 day Mon 3/2/09
1 day Fri 316109
62 dllys Mon 319109
34 day5 Tue 619109
1 day Tue 619109
1 day Thu 7116109
1 day Fri 7124/09
3 days Mon 7127109
5 d3yS -niU sii 3109-
316 day5 Mon 3116109
-foday,--Mon 3116/09
1 day Mon 3127109
10 days Mon 917/09
t day Mon 10/19109 --10-11ays---Mon 3/1/10
i d.iy Moii-ar12110
10 days Mon 916110
1-da°y-Mon io11a110
675 days Mon 115109 -15 days Thu 816109
5 days Thu 8/ti/09
-s· dayS Thu 8113109
5 days Thu 8120109
1diiy Thu 9124/09
Summary • ♦ Project Summary @
Page 1
• •
_,
l
Ex1emal Tasks
Ex1emal Milostone ♦
• 1 Deadhne
FIGURE 9
PROJECT SCHEDULE
JULY 2009
,o 0 ; Task Name i Duration I Start t ~2009 2010 •2011 ,2012 _J ' ·,_,a1r_4 ·air 1 I Otr2 I Ctr 3 ; °'" I air 1 atr2 I 01r3 I Otr4 ' atr1 I 0112 I -Qtr_J_j__ Qtr_4 __ LOtr _1=r_otr.2 _J: __ Olr.3._, -39-·· containment analysis · 675 days Mon 1/5109 r
--Mon 115109 ~ i I ll .
" ~ review existmg data 5 days
1-----41-develop work plan ror ectJV1ly 10 days Fri 9/25/09 "t -.,i"2-EPA appriive work.plan update 10 days Fri 10/9/09
-43·-· •espon,;e to EPA ~.,m,mcm; 5 day,a Fu 10/23109
\\
-44--E.'A ~fl<'IOV,11 o: !~s-.s,;d r,lans 1 day fta 1l/13J09
1-----45--m1plement field work. ,r need&d 10 days Mon 11130/09 .. capture zone analys,s 20 days Mon 12114/09 ---submrt analysis ,ecommeridat,ons lo EPA 10 days Mon 1111/10 " ~-EPA re\llew recommendations ,·a-days Mon 1125110
-.. --conta1nmenl sys1em design (iT needed) 20 days Mon 2/11110
~-
-so ----EPA design review (II needed) 2o days Mon 3/8/10
--ff·-Response to EPA comments (11 needed) 20 days Mon M5/10
COnt3,rl!TIElnt S\lsiem i,iSla11a1,ciri tit -neEldedl --25d3Ys ____ --'7q ,, Mori-6J2a110
---" contamment system O&M (,f needed) 265 days Mon 812110 '._ .. ,.,--"":;t"r~~'l::i';:<t""-::"· :!i'; --I -----GRUB ,.,.,mM,at,on work µIan - ------- -Mon-w1·0· ,. 40 days t~,
" EPA review I approve work plan lO days Mon 415110
-56--re.srnmse 1o 2?.; comrn<rnls 10 oays Mon 4119!10 c-,,-EP.:._ appro~al ol rov1se,1 plans 10 COYS Mon s/3110
--" GRUB Area remed,aHon preparation 30 days Mon 5117110 ;..,..., -59-GRUB area remediation ·20 da-yS --Mon 6J28/10 ,;
-50-· Receive final confirma1,on data 1 day Mon 8/23/10 r1 I -" --GRUB remediation report 20 days Tue 8124110
" "' 696 days Tue 10120109 . -78--205 days Wed 2/25.109 Dietheylene Dioxide
-7f-. I ! .
✓-Property Access Agreement 1 day Wed 2125/09 hi -" ✓ Surtace water charactenzallon p,lot study 2 d3ys Mon l/30109 -t~l 51--✓ Receive SW pilot study oata tmm laD \ day Wed 4/29109 ----.,----✓-Review at 2009 oata 2s da-yS -Thu 4/Joiof
-., -✓-Property L,ne Survey 10 days Mon 312J09 I .. 0 1%,a~ new""'"'" ;>'Jims !o, ~,,,faco water cle,ariun n-mnitorinu 6 days Wed 411/09 I -" --Surve)" 11<,w ~u,rar.,· Wiiler el,w~\m,r refcrcfl~c po,pts 5 days Thu 4123/09
" ✓ SuDnirt_wo_rf< plan update ior Q3 2009 event (SU,face Water 1nfl11ia1,orl"tils1anii) --1 day ··--TtiU eii 8io9
-" EPA Approve wort< plan update 1 day Fri 713109 ~ -sf-,,;5[){>,is~ lo EP,; e<i,ii,i"'n\S-------. -----10 days Mon'l".'6109 -" -EP:. appm~al ol re·.~~ed plar,s 1 '.la~ Mon 813J09 ih, -90-~ Stream Samplmg 5 days Mon 8/31/09
-gj-Review 03 2009 data 25 da-yS Tue 1 0120/09 'fu -gf-Submrt d1elhylene oride discharge assessment memo 1 day Tue 121!!/09 T --
SCHEDULE OF ACTIVITIES I Task I I Progress Summary 0 0 E><temal Tasks I . -, _, Deadline n
AS AGREEO ·,;-·
JULY 16. 2009 TELECONFERENCE Split M,lestone ♦ Project Summary --E><temal Milestone ♦
CELANESE FIBER OPERATIONS SITE Page 2 FIGURE 9 SHELBY. NORTH CAROLINA PROJECT SCHEDULE
JULY 2009