NCD986187094_19970425_Reasor Chemical Company_FRBCERCLA FS_Work Plan - RI FS Project Assistance Volume I - Technical (Revision 0)-OCR

Document Control No. 4400-45-AGHH
Revision 0
WORK PLAN
REMEDIAL INVESTIGATION/FEASIBILITY STUDY
PROJECT ASSISTANCE
REASOR CHEMICAL COMPANY SITE
CASTLE HAYNE, NEW HANOVER COUNTY, NORTH CAROLINA
VOLUME I-TECHNICAL
Work Assignment No. 77-4Rl24
APRIL 1997
REGION IV
U.S. EPA CONTRACT NO. 68-W9-0057
Roy F. Weston, Inc.
1880-H Beaver Ridge Circle
Norcross, Georgia 30071
WESTON W.0. No. 04400-077-096--0012-00
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Document Control No. 4400-45-AGHH
Revision 0
WORK PLAN
RECEIVED
JUL 08 1997
SUPERFUND SECTION
REMEDIAL INVESTIGATION/FEASIBILITY STUDY
PROJECT ASSISTANCE
REASOR CHEMICAL COMPANY SITE
CASTLE HAYNE, NEW HANOVER COUNTY, NORTH CAROLINA
VOLUME I -TECHNICAL
Work Assignment No. 77-4RI24
APRIL 1997
REGION IV
U.S. EPA CONTRACT NO. 68-W9-0057
Roy F. Weston, Inc.
1880-H Beaver Ridge Circle
Norcross, Georgia 30071
WESTON W.0. No. 04400-077-096-0012-00
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Prepared by:
Technical Review
Perfonned by:
RI/FS WORK PLAN
REVISION 0
RI/FS PROJECT ASSISTANCE
REASOR CHEMICAL COMPANY SITE
CASTLE HAYNE, NORTH CAROLINA
U.S. EPA Contract No. 68-W9-0057
Work Assignment No. 77-4RI24
Document Control No. 4400-77-AGHH
Date:
Mark A. Taylor, P.G.
WESTON Work Assignment Manager
Date: --1-f-· _2_5"_--'-9---'7'------
Approved by: ---'~"'--"-J<I.Lol""""
11
='L ~--"J.--"-~"1"-''------Wiiii:~~ Date: _..=4,_-,,,,2'""-'i"_-_,_9_,7'------
WESTON Region IV Program Manager
Approved by: ________________ _ Date: ________ _
Giezelle Bennett
U.S. EPA Remedial Project Manager
Approved by: ________________ _ Date: ________ _
Robert P. Stern
U.S. EPA Regional Project Officer
WESTON W.O. No. 04400-077-096-0012-00
NOR /K:\ WP\ 04400\ 077\ WPMAT002. WP
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part, without the express written permission of EPA
Section
1
2
3
RI/FS Work Plan
Reasor Chemical Company Site
Section: Table of Contents
Revision: 0
Date: April 1997
TABLE OF CONTENTS
INTRODUCTION
SITE BACKGROUND Ai"ID PHYSICAL SETTING
2.1 Site Location ... .
2.2 Site History ... .
2.3 Site Characteristics
... 1-1
. 2-1
. . 2-1
. 2-1
.. 2-5
2.3.1
2.3.2
2.3.3
2.3.4
Physiography and Surface Drainage ............... 2-5
Regional Geology and Hydrogeology ............. 2-10
Local Geology . . . . . 2-11
Local Hydrogeology ....................... 2-12
2.4 References . . . . . . . . . . . . . . .
CONCEPTUAL SITE MODEL
3.1 Overview .
3.2 Study Areas
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.2.6
3.2.7
3.2.8
3.2.9
3.2.10
3.2.11
3.2.12
3.2.13
Former Wood Chip Processing Area
Fonner Rosin Warehouse
North Tank Cradle Area ....... .
Work Tank Area ....
South Tank Cradle Area
Fonner Laboratory Area
Fonner Garage Area ..
Fonner Still Area ....
Fornier Transfonner Area
U-Shaped Settling Pond .
South Ponds
Pond No. 3
Pond No. 4 .
... 2-13
... 3-1
. 3-1
. 3-1
. 3-3
. 3-5
. 3-6
... 3-6
. 3-7
. 3-7
. 3-7
. 3-8
. 3-8
. 3-9
.. 3-9
. 3-IO
. 3-10
NOA/K: \ WP\ 04400\ 077\ WPMAT002. WP
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
Section
4
3.2.14
3.2.15
3.2.16
3.2.17
3.2.18
3.2.19
3.2.20
3.2.21
3.2.22
RI/FS Work Plan
Reasor Chemical Company Site
Section: Table of Contents
Revision: O
Date: April 1997
TABLE OF CONTENTS (Continued)
Title
Dn11n Disposal Area ..... .
Fonner Refinery Building .. .
Above-Ground Piping System
Fornier Water Supply Wells
Sluice Area ................. .
Scrap Copper Area ........... .
Additional Study Areas Identified from
Historical Aerial Photographs ........... .
Water Lines . . . . . . . . . . .
Building Materials .....
Page
3-11
3-11
3-12
3-12
. . 3-13
3-13
. . . . . . 3-14
. 3-14
...... 3-15
3.3 Initial Identification of Applicable or Relevant and
Appropriate Requirements ...... .
3.4 Scoping of Remedial Alternatives ........... .
. 3-15
. 3-16
3.4. l
3.4.2
Identification of Preliminary Remedial Response
Objectives ...................... .
Identification of Preliminary Remedial Response
Actions and Remedial Alternatives ....... .
. 3-16
3-20
RI WORK PLAN ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-1
. 4-1
. 4-1
. 4-1
. 4-2
4.1
4.2
4.3
4.4
Project Planning .....
Community Relations ..
Subcontract Procurement
Work Plan Approach Field Activities ............ .
4.4. l Site Preparation . . . . . . . . . . . . . . . . . . . . . . . 4-3
4.4.2 Well Survey . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
4.4.3 Geoprobe® Groundwater and Soil Investigation ........ 4-5
4.4.3. l Phase I Geoprobe .
4 .4. 3. 2 Phase II Geoprobes
. 4-5
4-12
NOR/K; \ WP\ 04400\ 077\ WPMA T002. WP II
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
Section
4.5
4.4.4
4.4.5
4.4.6
4.4.7
4.4.8
4.4.9
4.4.10
4.4.11
RI/FS Work Plan
Reasor Chemical Company Site
Section: Table of Contents
Revision: O
Date: April 1997
TABLE OF CONTENTS (Continued)
Page
Surface Soil Investigation 4-I 3
Sediment Sampling . . . . 4-16
Surface Water Sampling . 4-18
Residential and/or Commercial Well Sampling ....... 4-19
Phase II Pennanent Monitor Wells ....... 4-19
Aquifer Testing . . . . . . . . 4-21
Fonner Water Supply Wells 4-21
Investigation Derived Waste 4-22
Sample Analysis/Validation 4-22
4-22
4-23
4.5.1
4.5.2
Sample Analysis
Data Validation
4.6 Environmental Fate and Transfer Modeling Evaluation 4-23
4-24 4. 7 Baseline Risk Assessment Development ........ .
4.7.1
4.7.2
Human Health Risk Assessment
4.7.1.1
4.7.1.2
4.7.1.3
4.7.1.4
4.7.1.5
4.7.1.6
4.7.1.7
Data Collection and Evaluation
Exposure Assessment and Documentation
Toxicity Assessment and Documentation
Risk Characterization
Carcinogenic Risk ...... .
Noncarcinogenic Risk .... .
Risk-Based Remedial Options
Environmental/Ecological Risk Assessment
4. 7.2.1 Data Evaluation ...
4. 7.2.2 Exposure Assessment
4.7.2.3 Toxicity Assessment
4.7.2.4 Risk Characterization
4-25
4-25
4-27
4-28
4-28
4-29
4-30
4-30
4-31
4-31
4-32
4-33
4-34
NOR/K;\ WP\ 04400\ 077\ WPMAT002. WP 111
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
Section
5
6
7
8
RI/FS Work Plan
Reasor Chemical Company Site
Section: Table of Contents
Revision; O
Date: April 1997
TABLE OF CONTENTS (Continued)
Title Page
4.8 RI Report .
4. 9 References .
. 4-34
. 4-35
FEASIBILITY STUDY WORK PLAN ..................... 5-1
5. I Development and Screening of Remedial Action Alternatives . . . 5-1
5. I. I Identification and Screening of Remedial Technologies . 5-2
5 .1.2 Development of Alternatives ................... 5-2
5.1.3 Initial Screening of Alternatives . . . . . . . 5-3
5 .1.4 Initial Screening Technical Memorandum ........... 5-4
5.2 Task 5 -Detailed Evaluation of the Alternatives ............ 5-5
5.3 Feasibility Study Report .......................... 5-13
PROJECT MANAGEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6.1 Organization ................................ .. 6-1
6.2
6.3
6.1. l Work Assignment ........... .
6.1.2 Quality Assurance Coordinator
6.1.3 Project Field Team Manager
6.1.4 Field Safety Coordinator .
6.1.5 Laboratory Staffing
6.1.6 EPA Personnel
Project Schedule ...
Deliverables Schedule
PROJECT MEETINGS
PROGRESS REPORTS . . . . . . . . . . . . . . . . . . . . .
. ... 6-1
. 6-1
. 6-3
. 6-3
. 6-3
. 6-4
. 6-4
. 6-4
. 7-1
...... 8-1
NOR/K: \ WP\ 04400\ 077\ WPMA T002. WP IV
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
Figure
2-1
2-2
2-3
3-1
3-2
4-1
4-2
4-3
4-4
6-1
6-2
RI/FS Work Plan
Reasor Chemical Company Site
Section: Table of Contents
Revision: O
Date: April 1997
TABLE OF CONTENTS (Continued)
LIST OF FIGURES
Title
Site Location Map
Site Location Map (USGS Topo.)
Previous Sampling Locations for L1w (1989) and NCDEHNR ( 1995)
Investigations ............................ .
Study Area Locations
Conceptual Site Locations
.............................
.............................
Conceptual Geoprobe Boring Locations .
Proposed Surface Soil Sample Locations
Proposed Surface Water and Sediment Sample Locations
Conceptual Pennanent Monitor Well Locations
Project Organization
Project Schedule ...
................................
................................
NOR/ K:\ WP\ 04400\ 077\ WPMAT002.WP V
. 2-2
. 2-3
. 2-8
. 3-2
. 3-4
. 4-6
4-14
4-17
4-20
. 6-2
. 6-5
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA
Table
2-1
2-2
3-1
3-2
4-1
5-1
RI/FS Work Plan
Reasor Chemical Company Site
Section: Table of Contents
Revision: O
Date: April 1997
TABLE OF CONTENTS (Continued)
LIST OF TABLES
Summary of Analytical Results (Water Samples), NC DEHNR I 994
and Law Environmental 1989 . . . . . . . . . . . . . . . . . . . . . . . . ... 2-6
Summary of Analytical Results (Soil/Sediment), NC DEHNR I 994
and Law Environmental 1989 . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Summary of ARAR Sources Evaluated 3-17
Preliminary Applicable or Relevant and Appropriate Requirements . . . . 3-18
Geoprobe Boring Summary
Detailed Evaluation Criteria
............................
............................
LIST OF APPENDICES
. 4-8
. 5-8
APPENDIX A-Target Compound List (TCL) and Target Analyte List (T AL) Parameters
and Their Quantitation Limits
NOA/I<;\ WP\ 04400\ 077\ WPMAT002.WP VI
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part, without the express written permission of EPA.
\
SECTION 1
INTRODUCTION
RI/FS Work Plan
Reasor Chemical Company Site
Section: 1
Revision: O
Date: April 1997
Roy F. Weston, Inc., (WESTON®) is submitting this Remedial Investigation and Feasibility
Study Work Plan to the U.S. Environmental Protection Agency (EPA), Region IV, for the
Reasor Chemical Company site, located in Castle Hayne, New Hanover County, North Carolina.
The Work Plan was prepared under Work Assignment No. 77-4RI24 of U.S. EPA Contract No.
68-W9-0057 in accordance with the Statement of Work provided to WESTON dated July 11,
1996.
This Work Plan presents the objectives, overall scope and strategy, estimated budget and
schedule for conducting Remedial Investigation/Feasibility Study (RI/FS) activities including a
Baseline Risk Assessment for the Reasor Chemical Company site. The ultimate purpose of the
RI/FS program is to provide and evaluate information to support EPA' s selection of a remedial
action alternative that will eliminate or sufficiently reduce the risk (if any) posed by the site to
public health and the environment.
The Reasor Chemical Company site RI/FS will be conducted in accordance with the
requirements of the Statement of Work (SOW), as amended by the Superfund Amendment and
Reauthorization Act of 1986 (SARA), and "EPA Guidance for Conducting Remedial
Investigation and Feasibility Studies Under CERCLA, Interim Final" (October 1988).
NOR/ K:\ WP\ 04400\ 077\ WPMAT002. WP 1-1
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
withollt the express written permission of EPA.
SECTION 2
RI/FS Work Plan
Reasor Chemical Company Site
Section: 2
Revision: 0
Date: April 1997
SITE BACKGROUND AND PHYSICAL SETTING
2.1 SITE LOCATION
The Reasor Chemical Company site 1s located in Castle Hayne, North Carolina, near
Wilmington in the southeast portion of the state (Figure 2-1). The site consists of a vacant land
parcel located 0.5 miles southeast of the intersection of NC Route 132 and US Route 117 (NC
Route 133) (Figure 2-2). The geographic coordinates of the site are 34 °20'36.5" N latitude and
77°53 '31" W longitude. To access the site from Raleigh, travel I-40 south, taking US 117 south
near Castle Hayne. Bear left at the NC 132 interchange, approximately 1.0 mile south of the
Northeast Cape Fear River. The entrance to the site is on the left (east) side of NC 132, 0.5
mile past the interchange. From Wilmington, travel US 117 North to Castle Hayne. At the US
117 and NC 132 intersection, tum right on NC 132, cross the railroad tracks, and travel
approximately 100 yards east on NC 132. The site entrance will be on the left.
2.2 SITE HISTORY
The Reasor Chemical Company site is the fonner location of a stump rendering facility. Reasor
Chemical operated the facility from 1959 to 1972, then sold the property to Martin Marietta
Corporation, which in tum sold the site to the Cameron Company in 1986. The site has been
inactive since 1972 and was dismantled at some time prior to 1986.
NOR/K:\ WP\ 04400\ 077 \ WPMAT002. WP 2-l
-------------------
SITE LOCATION
SITE LOCATION MAP
REASOR CHEMICAL COMPANY
CASTLE HAYNE, NORTH CAROLINA
FUG URE 2-1
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SOURCE: SCOTTS HILL & CASTLE HAYNE QUADRANGLE NORTl-1 CAROLINA 7.5 MIN. SERIES (TOPOGRAPHIC)
0 2000 4000
NORTl-1 CAROLINA SCALE FEET
REASOR CHEMICAL COMPANY
CASTLE HAYNE, NORTl-1 CAROLINA
SITE LOCATION MAP
DRAIJN DATE DATE \J, □. NO, I bi WRS 4 97 04400-077
2-2 CHECKED ATE APPROVED ATE DVG. NO. FIGURE 04400-SM .~L_ ______________ ,_ _______ L_ ___ __L _______ .J..._ ____ 1-,,;e....,_-'-"'-'!...-""'"-.J
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This document was prepared by Roy F. Weston, Inc,, expressly for EPA. It shalt not be released or disclosed, in whole or in part, without the express written permission of EPA.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 2
Revision: O
Date: April 1997
Reasor Chemical produced turpentine, pine, resin, pitch, tall oil, pine oil, camphor, pine tar,
and charcoal from pine tree stumps. The facility is believed to have used various solvents to
extract raw product from chipped stumps, distilling the extract into separate product fractions.
The solvents used in the extraction process were apparently stored on site in 55-gallon drnms,
remains of which are still visible in a surface drnm disposal area near the center of the property.
Five surface impoundments or ponds, which apparently were used in the manufacturing process,
are still present at the site. Spent stump chips were disposed on the ground surface in a "Sluice
Area" in the northeast comer of the site. Concrete remnants of three aboveground storage tank
arrays stand within the "Cradle Area" in the west-central portion of the site. Additionally,
remnants of several building foundations remain on site including the main processing area
located in the south central portion of the site. The remainder of the site presently consists of
dirt roads and woodland. Reportedly, a fire occurred on a portion of the property in April 1972,
damaging some of the on-site timber.
In I 989, Law Environmental, Inc., (Law) completed an environmental site assessment of the
property. Law collected soil, sediment, and groundwater samples. Benzene, toluene, and xylene
(BTX) compounds were detected in the cradle area soil sample, in three of the four pond
sediment samples, and in the groundwater sample. Acetone was detected in the Cradle, Sluice,
and drnm disposal soils, and in three of the pond sediment samples.
In 1995, a site inspection (SI) was conducted by the State of North Carolina -Superfund Section
of the Department of Environment, Health and Natural Resources (NCDEHNR). The data and
NOR/I<:\ WP\ 04400\ 077 \ WPMA T002. WP 2-4
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This document was prepared by Roy F. Weston, Inc., expressly for EPA It shall not be released or disclosed, in whole or in part, without the express written permission of EPA.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 2
Revision: 0
Date: April 1997
information obtained during the SI are-summarized in Section 2.3 below. Tables 2-1 and 2-2
summarize the data collected by Law and NCDEHNR. Figure 2-3 represents the locations of the
samples collected during these previous investigations.
2.3 SITE CHARACTERISTICS
This section contains excerpts and references from the NCDEHNR Site Inspection Report elated
March 1995. During the Work Plan process, WESTON contacted the appropriate agencies and
resources relied upon for the site data. The following paragraphs were subsequently amended
to incorporate any new or different infonnation.
2.3.1 Physiography and Surface Drainage
The Wilmington-Castle Hayne area lies within the Coastal Plain Physiographic Province (Ref.
8, p. 18). The geologic makeup of this province consists of a crystalline basement complex,
overlain by a wedge of layered sedimentary bedrock strata, including Black Creek, the Pee Dee,
and the Castle Hayne Fonnations. These sedimentary fonnations consist of sands, clays, and
limestones elating from the Cretaceous and Tertiary Periods. The sedimentary wedge, which
contains all the significant potable aquifers in the region, thickens toward the Atlantic coast,
measuring I, 100 feet in Wilmington (Ref. 5, pp. 8-13). Overlying the sedimentary bedrock
formations are unconsolidated sediments deposited during the Tertiary and Quaternary Periods
(Ref. 5, pp. 8, 15, 18).
Groundwater under unconfined conditions generally moves downward and laterally from
recharge areas in the interstream areas to topographically lower discharge points at hillside
NOA/ K:\ WP\ 04400\ 077 \ WPMAT002. WP 2-5
--- -- - ---- -----This document \v.3S prepared by Roy F. Weston, Inc., expressly for EPA. lt shall not be disclosed, in whole or in part, without the express written permission of EPA.
Sample# Law Sample #8
On-Site
Table 2-1
Reasor Chemical Company
Summary of Analytical Results (Water Samples)
NC DEHNR 1994 and Law Enviornmental 1989
RC-001-PW RC-002-PW RC-003-PW PG l PG 2
APAC/Dickerson Davis Springer Prince George Ests.
RC-004-SW
P.G. Creek
- --RI/FS Work Plan
Reasor Chemical Company Site
Section: Section 2
Revision: O
Date: April 1997
RC-005-SW
P.G. Creek Lowest
-
Location Monitoring Well \Vorkplacc Domestic Domestic Communit~· (dwnstrm) (upstrm) Benchmark Medium:
Date: 3/22/89 (1)
Volatile Organic Come_ounds {J:!..g!jd
Acetone ------
Benzene 3.6 ---
Carbon disulfide NA ---
Ethvlbenzcnc NA ---
Toluene 11 ---
Xylenes (total) 18.9 ---
Semi-l""o/atile Organic Compounds { p g-L)
Phenol 18 ---
Pesticides ( y g.-'L)
Toxaphene ------
--- = Indicates parameter nol detected, or below quantitation limit.
Tr= Indicates that trace concentration was reported.
NA= Indicates that sample was not analyzed for parameter.
Groundwater
11/2/94 (2)
---
---
---
---
---
---
---
---
Surface Water Value (4)
6/1-7 /94 (3) 11/2/94 (2)
---NA NA ------3,500
---------------1.2
---. NA NA ------3,500
---------------700
---------------1,000
---------------10,000
---NA NA ------21,000
---------------0.032
(I) Samples collected by Law E11\'ironmental, Inc., during a Preliminary En\'ironmcntal Liability Assessment of the neighboring \Vilmington Auto Park Associates property.
(2) Samples collected during the NC Superfund Section's Site Inspection.
(3) Samples collected by the New Hano\'Cr County Engineering Department.
( 4) EPA 199-l (l'v!CL/MCLG or Cancer Risk Screening Concentration for groundwater (Ref. 23).
(5) See Appendix A. Ref. 8 for chemical laboratory analyses.
NOR/KIWP\044001077\TABLES.XLS Table 2· 1 4124197
------------- ------This document was prepared by Roy F. Weston, Inc., expressly for EPA U shall not be disclosed. in whole or in part, without the express written permission of EPA
Sample#: No. I No. 3 No. 6 Nos. 2,-t,S,7•
Tnk.Crdl Sluice Drum Di,p. l\hu:. Pond
Location Arca Area Area Concentration
i'dedium: Soil
Date: 3/22/89 (I)
Volatile Organic Come_ormds ( yg.Jigl
Acetone 108 125 133 5,600
Benzene 5 ---

-
-
-
909
Ethylbenzene NA NA NA NA
Methylene chloride NA NA NA NA
Methyl ethyl ketone NA NA NA NA
(2•butanone)
Toluene 18 -----90,000
Xylcnes (total) 93 ------25,000
Si::mi-Folatile Organic Compomuls ( ygj;g)_
Anthraccne C NA NA NA NA
Benzo(k )11 uornnthenc NA NA NA NA
Bcnzo( a) pyrcne NA NA NA NA
Chryscne NA NA NA NA
Fluoranthcnc NA NA NA NA
benzo(_i,k)tluorene
2•mcthyl naphthalt:nc NA NA NA NA
Phenanthrenc NA NA NA NA
Phenol NA NA 5,120 175,000
Pyrene NA NA NA NA
Pesticides f lJ. g_l%J_
Toxaphcne
•·· = /11dicatcd pararrn:tcr not dctc<.:tcJ, or bclo\\' qua111i1a1ion lirni1.
NA -!r1dicatcs Iha! sampk: \\'HS nut :rnnl~-;.cJ fo1 para1rn.:li.:r.
J = Indicates gi\·en concentration to be an estimated nduc.
K = Indicates that actual concentration is kss than \"a]ue gi\·en.
C = Indicates possible laboratory contamination.
!3 = Indicates compound was also dclcctcd in laboratory blank.
l,IIJRJK 1WPIOH00\071HABLES .'<LS ht.e 2·2
Table 2-2
Reasor Chemical Company
Sununary of Analytical Results (Soil/Sediment)
NC DEIINR 199-4 and Law Emiornmcntal 1989
RC-00-l-SD RC-005-SD RC-006-SS RC-007-SD RC-008-SS
P.G. Crrrk P.G. Crcek Drum Disr,. On-site 1''\\' Ditch Pond #I Pond #2
{d~nstrm) (Upltrm) Arra (No.6) Ditch (bkgrnd)
Sediment Soil Sediment Soil
28 J
---
---
---
4JIJ
10
---
---
---
---
---
---
---
---
---
---
11/2/9-l (2)
LAW NC
2 JC ---3 JC ----------

-
-
---135 -----------3,288 -----21 J8 29 JB --
--------------
----------23,458 -----------117,113
---333 K ---------1,650 K ---------
---1,650 K --------800 -------
---2,083 -------
---330 K ------------667 ---------
---------------
---2,700 ---------
• '"' I lig,hcst Jc1cctcJ co1l\lllllinnnt co1lcc11trntion in scdimc11ts from snrnll
l'n11ds 11 J & 2, frum Drained Pond, and from Settling Pond. Drained pond
not tested for phenol. Only Settling Pond wus tested for toxaphcne.
(I) Samples collected by Law Ell\·. dming a Preliminary Ell\·ironmental Liability
J\sscss:ment of the neighboring Wilmington Auto Park Assc. property.
(2) Samples collected during the NC Superfund Section's Site Inspection.
(3) See Appendix J\ and Ref. 8 for chemical laboratory analyses.
R1/FS Work Plan
Reasor Chemical Company Site
Section: Section 2
Revision: 0
Date: Atpril 1997
RC-009-SD
Pond #J Pond #4 Srttling Pond
(U-Shaprd)
Sediment
3/22/89
3700 5600 117
-11.7 909 ---
NA NA NA
NA NA NA
NA NA NA
5,550 10,500 -
---11,200 ---
NA NA NA
NA NA NA
NA NA NA
NA NA NA
NA NA NA
NA NA NA
NA NA NA
NA NA NA
175,000 NA 903
NA NA ---
NA NA ---
4/24/97
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RC-001-PW •
SOURCE:
KUCERA INT. AERIAL. PHOTOS, REAL PRCPERTY MAP or CAPE FEAR. LAW EN'tnRONMENTAJ... INC. SITE MAPS
WOODED AREA
SLUICE AREA
' I
l
PROPERTY Ul'IE
APPROXIMATE WEll.AND UWITS
PLT. SC.
FILE NO.
RC-004-SW • _ ____,~--
RC-004-5D
REASOR CHEMICAL COMPANY
CASTLE HAYNE, NORTH CAROLINA
PREVIOUS SAMPLING LOCATIONS FOR
LAW (1989) AND NCDEHNR (1995)
INVESTIGATIONS
FIGURE 2-3
\)
LEGEND
Rc-oos-ss • NCDEHNR SAMPLING LOCATIONS
.-LAW ENVIRONMENTAL SAMPLING LOCATIONS
RC-005-SW
\, • RC-005-SD
····· .... '» .. ,_
RC-002-PW •
DRAWN
WRS
CHECKED
0
SCALE
DATE
1 97
DATE
300' 600'
FEET
APPROVED DATE
\I, □, NO,
04400-077
D\JG, NO.
04400-09
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
Rl/FS Work Plan
Reasor Chemical Company Site
Section: 2
Revision: 0
Date: April 1997
springs and along streambeds, lakes, and the ocean (Ref. 8, pp. 6, 14, 24). Based on surface
topography and surface drainage, groundwater beneath the site is anticipated to flow in a general
south-southeasterly direction, toward Prince George Creek and the surrounding swamps (Ref. I).
Based on the site's topography (Ref. I), surface drainage at the site is toward the southeast, in
the direction of Prince George Creek. A system of drainage ditches mns parallel to the unpaved
perimeter and interior roads at the site. These ditches receive overflow from the settling pond,
the two impoundments south of the chip staging area, the sluice area, and other source areas at
the site (Ref. 3, pp. I, 3; Ref. 4, Fig. 2). One ditch flows across the center of the site, while
the other two skirt its south and east edges. The three intennittent channels begin to converge
southeast of the site, but do not intersect, tenninating instead at three probable points of entry
(PPEs) spaced a few hundred feet apart along the north edge of wetland areas which border the
creek (Ref. 3, pp. 6, 10; Figs. 2-3).
Prince George Creek flows westward, passing within approximately 700 feet of the site, then
continuing toward the Northeast Cape Fear River. The Prince George Creek is reported to be
tidally influenced downstream of U.S. Route 117, approximately I mile downstream from the
site, but the creek does not experience flow reversal upstream of this location (Ref. 9). For 0.6
miles both upstream and downstream of the site, the creek meanders slowly through a cypress
swamp (Ref. I; Ref. 7, pp. 6, 9). Source areas at the site are not located within mapped flood
plains (Ref. 28).
Based on published drainage area measurements and mean annual mnoff statistics, the mean
annual flow along the non-tidal segment of Prince George Creek is calculated to be 13.6 cubic
feet per second (cfs). The remainder of the creek has a calculated mean annual flow of 20.2 cfs
NOA/K: \ WP\ 04400\ 077 \ WPMA T002. WP 2-9
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 2
Revision: O
Date: April 1997
(Ref. IO)', The water in the entire Creek is designated as Class "C Sw." Class C indicates
waters suitable for aquatic life propagation and survival, fishing, wildlife, secondary recreation,
and agriculture. Sw indicates swamp water, with low velocity and other natural characteristics
differing from adjacent streams (Ref. 11).
Prince George Creek enters the Northeast Cape Fear River 5.5 miles downstream from the most
downstream PPE. The mean annual discharge of the river downstream of Prince George Creek
is approximately 2,370 cfs (Ref. 10). The Northeast Cape Fear River, however, undergoes tidal
reversal (and salt water intrusion) along its main channel as far as 6.5 miles upstream of the
mouth of Prince George Creek (Ref. 13, pp. 19, 31-35, Plate I). Flow reversal also occurs
along the river's tributaries, such as Cowpen Branch, Long Creek, Morgan's Creek, and Turkey
Creek (Ref. I; Ref. 9; Ref. 10). For this reason, the surface water pathway divides at the
mouth of Prince George Creek, continuing 9.5 miles downstream and 6.5 miles upstream along
the main Cape Fear River channel. Tidally influenced portions of its tributaries within 15 water
miles from the site are also within the pathway (Ref. IO; Figs. I, 3).
Upstream of Prince George Creek, the Northeast Cape Fear River is designated as Class "B
Sw," indicating swamp water, suitable for primary recreation and any other use specified for
Class C waters. Downstream of the creek, the river is designated Class "C Sw" (Ref. 11).
2.3.2 Regional Geology and Hydrogeology
Potable bedrock aquifers beneath the site include the Cretaceous Pee Dee Fonnation and the
overlying Eocene Castle Hayne Fonnation. The Pee Dee Fonnation consists of silt, clay, and
water-bearing sands with some impure limestone beds (Ref. 5, pp. 9, 13, 63). The Castle
NOR/ K:\ WP\ 04400\ 077\ WPMAT002. WP 2-10
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shalt not be released or disclosed, in whole or in part, without the express written permission of EPA.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 2
Revision: 0
Date: April 1997
Hayne Fonnation consists of shell, marl, sand, and limestone (Ref. 5, p. 13). Potable water
production from the Pee Dee aquifer is limited to the uppennost of 4 separate water-bearing
sandy layers within the fonnation. A confining clay layer which nonnally caps the sand unit
is absent beneath the site and in areas to the north and west (Ref. 5, pp. 9, 10, 14). The two
fonnations therefore behave as a single aquifer.
The City of Wilmington's drinking water source consists of a surface water intake located
outside of the study area on the Cape Fear River. No municipal water supply wells or
distribution lines are located within 4 miles of the site. The entire population within 4 miles of
the site is supplied water from domestic or community wells (Refs. 6-7). The 1994 community
well database indicates that 19 community wells supply approximately 4,238 residents within a
4-mile radius of the site (Ref. 7). The nearest community well, supplying 50 people, is located
in a mobile home park 1,500 to 2,500 feet southwest of the site. Another community well,
supplying 600 people, is located 3,000 feet southeast of the site in a housing subdivision (Ref.
7; Fig. I).
2.3.3 Local Geology
Little infonnation is available regarding the overburden geology of the site. In general,
however, the bedrock fonnations in this part of the county are overlain by unconsolidated sanely
beach, dune, and stream channel deposits, which vary considerably in thickness (Ref. 5, pp. 18-
20). Because of the lack of confining clay layers, the Castle Hayne and Pee Dee aquifer is
anticipated to function as a water table aquifer at the site. Historical well records do not indicate
that the overburden sands were commonly used as a water-supply aquifer within a mile of the
site (Ref. 5, pp. 20, 62-63, 67, 71, Fig. 3).
NOR/ K:\ WP\ 04400\077 \ WPMA T002. WP 2-11
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part, without the express written permission of EPA.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 2
Revision: 0
Date: April 1997
Portions ·~f the site are underlain by five different natural soil types. The eastern third of the
site is mapped as Wrightsboro fine sandy loam (0-2 % slope). The western third is mapped as
Leon sand. The south-central portion of the site is mapped as Seagate fine sand, and the north
central portion of the property is mapped as Lynchburg fine sandy loam and Onslow loamy fine
sand (Ref. 12, pp. 8-10, 12, 14, Sheet No. 3).
Surficial soils at the site typically consist of 3 to 8 inches of dark gray to light gray fine sand
or fine sandy loam. At most on-site locations, the surface layer is underlain by layers of sane!,
sandy clay loam or clay loam to a depth of approximately 65 inches. The subsurface soils are
expected to be sandier in the southern and western portions of the site, but sanely clay loam is
more prevalent in the mapped subsoils corresponding to contaminant source locations (Ref. 4,
Fig. 2; Ref. 12, pp. 60-62, Plate 3).
2.3.4 Local Hydrogeology
Historical well records reveal that four production wells were once drilled at the site for Reasor
Chemical Company. At least one of the wells was never used. Records indicate that the wells
were cased to depths ranging from 14 to 34 feet below surface, which may approximate the
respective beclrock depths at each well location (Ref. 5, p. 63). The wells penetrated both the
Castle Hayne and Pee Dee Fonnations, to a maximum depth of 212 feet. Records indicate that
several other wells in this part of New Hanover County also penetrated both bedrock fonnations
(Ref. 5, pp. 62-63, 67, 71, Fig. 3). Only I production well, non-operational, was identified
during site visits (Ref. 6).
NOA/K; \ WP\ 04400\ 077\ WPMAT002. WP 2-12
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 2
Revision: 0
Date: April 1997
The NC Division of Environmental Management installed one monitoring well at the site and
four others· on adjacent land to the east, in order to monitor groundwater elevations during
Martin Marietta's use of the adjacent property (Ref. 4, p. 5). The DEM monitoring well at the
site is reportedly cased to 22 feet, and screened in limestone from 22 to 48 feet deep (Ref. 30).
The Castle Hayne Fonnation's thickness at the site is generally estimated at slightly over 20 feet
(Ref. 5, p. 16).
2.4 REFERENCES
2.
3.
4.
5.
6.
7.
United States Geological Survey 7.5 Minute Orthophotomap Quadrangles: Castle Hayne,
NC, 1970; Scott's Hill, NC, 1970; Rocky Point, NC, 1970; Mooretown, NC, 1970; 7-
1/2 Minute Topographic Quadrangle: Currie, NC, 1980; I :24,000.
Nicholson, Brnce, NC Superfund Section, Preliminary Assessment Reconnaissance,
Reasor Chemical, Castle Hayne, North Carolina, July 23, 199 I.
Parker, Stuart F., NC Superfund Section, Reasor Chemical SI Reconnaissance and
Sampling Report, November 4, 1994; Attached Field Notes, August 2, 1994, November
2, I 994.
L1w Environmental, Inc., Preliminary Environmental Liability Assessment, Prepared for
Wilmington Auto Park Associates, April I 989.
Bain, George L., Geology and Ground-water Resources of New Hanover County, North
Carolina, US Geological Survey Groundwater Bulletin Number 17, 1970.
Parker, Stuart F., NC Superfund Section, Memorandum to File: Municipal Drinking
Water Supplies within the Study Area, July 25, I 994.
Moore, Martha, NC DEHNR, Division of Environmental Health, Public Water Supply
Database, July 28, I 994.
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
8.
9.
10.
11.
12.
13.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 2
Revision: 0
Date: April 1997
Heath, R.C., US Geological Survey, Basic Elements of Groundwater Hydrology with
Reference to Conditions in North Carolina, Open-file Report 80-44, Raleigh, NC, I 980.
Nicholson, Bruce, NC Superfund Section, Memorandum to File: Telecons with Ed Beck,
Water Quality Section, and Rick Shriver, Groundwater Section, Wilmington Regional
Office, NC Division of Environmental Management, August 29, 1991.
Parker, Stuart F., NC Superfund Section, Memorandum to File: Surface Water Pathway
Definition, July 20, 1994.
NC DEHNR Division of Environmental Management, Classifications and Water Quality
Standards Assigned to the Waters of the Cape Fear River Basin, 15A NCAC 2B .0311,
Current through February 1, 1993.
US Department of Agriculture, Soil Conservation Service, Soil Survey of New Hanover
County, North Carolina, April 1977.
Giese, G. L.; Wilder, H. B.; Parker, G. G., Jr., Hydrology of Major Estuaries and
Sounds of North Carolina, US Geological Survey Water Supply Paper 2221, 1985.
NOA/ K:\ WP\ 04400\ 077\ WPMA T002 .WP 2-14
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This document was prepared by Roy F. Weston, Inc., expressly for EPA lt shall not be released or disclosed, in whole or in part,
without the express written permission of EPA
3.1 OVERVIEW
SECTION 3
CONCEPTUAL SITE MODEL
RI/FS Work Plan
Reasor Chemical Company Site
Section: 3
Revision: 0
Date: April 1997
Section 3 presents the initial conceptual site model including an evaluation of the study areas,
preliminary identification of applicable or relevant and appropriate requirements (ARARs), and
scoping of remedial alternatives.
3.2 STUDY AREAS
This subsection presents an initial evaluation of the potential source areas identified on the
Reasor Chemical Site as a result of WESTON' s review of the available background infonnation.
In addition to discussing the physical features and locations of the source areas, the release
mechanisms, pathways, and potential impacts to the environment are also presented. Figure 3-1
depicts each of the study areas discussed in this section.
During previous site investigations, some level of contamination has been documented in soil
surface water and sediment at several of the potential contaminant source areas (e.g., surface
impoundments, sluice area, etc.). Additionally, obvious contamination has been observed in
some areas such as the drum disposal area and beneath the tank cradles. However, for other
areas on the site (e.g., fonner laboratory, garage, and pipe shop), no samples have been
collected but the nature of activities at these areas indicates that chemicals were likely handled
and/or stored, creating a reasonable potential for release.
NOR/K: \ WP\ 04400\ 077\ WPMA T002. WP 3-1
SCllRCE:
KUCERA INT. AERIAL PHOTOS. REAL PROPERTY M CF CAPE FEAR.
LAW EN-...,RONMENTAL INC. SllE MAPS
WOODED AREA
I
DRUM DISPOSAL
AREA
WET AREA ~
ROSN
WAREHOUSE
LABDRAlORY
N<IITH
TANI< CRADLE
AREA
PROPERTY LINE
PLT. SC.
FILE NO.
APPROXIMATE 'IIETtAND LIMITS
REASOR CHEMICAL COMPANY
CASTLE HAYNE, NORTH CAROLINA
STUDY AREA LOCATIONS
FIGURE 3-1
SLUICE AREA
'¥' '¥'
0
SCALE
DRAIJN DATE
WRS 12-96
. CHECKED DATE
200' 400'
FEET
APPROVED DATE
\J. 0. NO.
04400-077
D\JG, ND .
04400-08
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This document was prepared by Roy F. Weston, Inc., expressly for EPA It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 3
Revision: 0
Date: April 1997
The primary suspected release mechanisms identified are potential spillage or other release of
chemicals either directly onto the ground surface and/or through preferential pathways such as
cracks or openings in building floors or concrete pads; storage of waste in ponds/lagoons; on-site
plumbing; septic tanks; or wells. Such releases could affect surface and subsurface soils, surface
water, sediment, and groundwater. Given the sandy nature of surface soils and shallow (i.e.,
approximately 5 feet) water table, it is very likely that on-site releases would impact surficial
groundwater.
During the site visit no obvious odors were noted around the potential source areas and review
of background infonnation indicates that there is no history of complaints or concerns related
to on-site air quality. Given the nature of the chemicals used on-site, the humid climate in which
the site is located, and the absence of any obvious odors on-site, WESTON does not believe that
airborne contamination is a significant area of concern for the Reasor Chemical Site. However,
because a photo-ionizing detector (PID) will be utilized during field investigation activities to
screen samples, measurements of on-site organic vapor concentrations will be taken.
Figure 3-2 depicts a graphical representation of the conceptual site model based on the
background infonnation collected to elate.
3.2.1 Former Wood Chip Processing Area
The wood chip processing area is located in the southeastern portion of the site and consisted
of a process line trending southwest to northeast (see Figure 3-1). This area currently consists
of a long concrete pad with remnants of buildings at each end. Based on review of historical
information, the extraction process began with the grinding of pine stumps into chips at the Mill
NOR/K:\ WP\ 04400\ 077\ WPMA T002. WP 3-3
- - - - - - - - - ---l!!!!!!I I!!!!!! !!!!I ~ == Giliiil. ·-
PRIMARY
SOURCE
DRUMS
PROCESS
BUtLDINGS
PRIMARY
RELEASE
MECHANISM
SPILLS/
LEAKAGE
~-->< INFILTRATION/
PERCOLATION
LAGOONS
OVERTOPPING ~-__J
f-----4 DIKE
SLUICE AREA
SCRAP COPPER
AREA
LEAKAGE
SECONDARY
SOURCE
SECONDARY
RELEASE
MECHANISM
SOlL
PATJnVAY
EXPOSURE
ROUTE
INGESTION
DERMAL
CONTACT
RECBPTOR
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~ e I • II c_ _•___J_ _ _J
INGESTION ~L-•___Ll _•___,I LI _ _j_ _ _J
1---------1
SOIL INFILTRATION/ PERCOLATION I-->, GROUND WATERf----->1 INHALATION ~'--•__,_I _•__,I I.__J_____,
DERMAL
CONTACT .__• _ _.___•__, IL _ _j_ _ __J
INGESTION ~ • I • 11 • I •
STOR.lvf
WATER
RUNOFF
SURFACE
WATER AND
SEDThffiNTS
~--->I INHALATION ~ • I • 11 • I •
CONCEPTUAL SITE MODEL
REASOR CHEMICAL
CASTLE HAYNE, NORTH CAROLINA
FIGURE 3-2
DERMAL
CONTACT .___•__,__•___J I • I •
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This document was prepared by Roy F. Weston, Inc., expressly for EPA Jt shall not be released or disclosed, in whole or in part,
without the express written permission of EPA
RI/FS Work Plan
Reasor Chemical Company Site
Section: 3
Revision: 0
Date: April 1997
Room and subsequent storage of the ground stumps in the Chip Bin. The chips were taken to
the Extractor Building and solvents were used to remove the resin from the chips. The resin
material was then further processed at other locations in the plant. The spent wood chips were
stored in the Fuel Bin and used to fire the boilers located at the northeast end of the process line.
The most likely areas of potential contamination are the fonner Extractor Building location and
the former storage tank area. However, given the length of time since operations ended and the
lack of detailed information on house keeping practices, the potential for residual solvents and/or
pine tar to be spread along the whole area cannot be rnled out. Thus, the wood chip processing
area will be investigated as a single source area.
Releases could impact surface soil, subsurface soil, and groundwater. Surface water and
sediment could also be affected by runoff from this area.
3.2.2 Fonner Rosin Warehouse
Based on historical infonnation, the Rosin Warehouse was located in the northwestern portion
of the site immediately south of Tank Cradle Area 1 (see Figure 3-1). This one-story, steel
frame and metal sided structure was approximately 40 ft by 40 ft, and was presumably used to
store extracted rosin.
Environmental concerns in this area are related to the potential release of chemicals from past
storage activities at this former building site. Potential release of solvents/pine products could
have impacted soil and groundwater.
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This document was prepared by Roy F. Weston, lnc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
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3.2.3 Nrirth Tank Cradle Area
RI/FS Work Plan
Reasor Chemical Company Site
Section: 3
Revision: 0
Date: April 1997
The North Tank Cradle Area is located in the northwestern portion of the site. This area
currently consists of a concrete pad. Tar is visible on the concrete pad beneath the fonner tank
cradles. Analytical results from a soil sample collected in this area by Law indicated the
presence of acetone, benzene, toluene, and xylene. The subject sample was analyzed for volatile
organic compounds only.
The tar coating on the concrete indicates releases have occurred in this area. Surface and
subsurface soil as well as groundwater may have been impacted from releases associated with
the tanks fonnerly located in this area.
3.2.4 Work Tank Area
The fonner work tank area is located in the central portion of the site immediately south of the
Drained Pond and west of the fom1er still building (see Figure 3-1 ). This area currently consists
of several tank cradles situated on a concrete pad. The tanks were presumably associated with
the adjacent distillation process. To date no samples have been collected in this area.
Surface and subsurface soil, surface water/sediment as well as groundwater may have been
impacted from releases associated with the handling and storage of chemicals in the work tank
area. Release pathways include direct spillage onto the ground, seepage through cracks in the
concrete pad situated beneath the tanks, and/or through piping associated with the work tanks.
NOA/K: \ WP\ 04400\ 077\ WPMAT002. WP 3-6
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This document was prepared by Roy F. Weston, Inc., expressly for EPA lt shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
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3.2.5 S~uth Tank Cradle Area
Rl(FS Work Plan
Reasor Chemical Company Site
Section: 3
Revision: 0
Date: April 1997
The south tank cradle area is located in the central portion of the site immediately northeast of
the chip processing area (see Figure 3-1). This area currently consists of several tank cradles
situated on a concrete pad. To date no samples have been collected in this area.
3.2.6 Fonner Laboratory Area
The laboratory building was located in the west central portion of the site south of the fonner
Rosin Warehouse (see Figure 3-1). The laboratory building was reportedly a one story wood
frame stmcture with both plumbing and electricity.
Potential releases to soils and groundwater related to use/storage of chemicals associated with
the laboratory are the primary concern in this area. Potential release pathways include through
cracks in the floor, from the building plumbing and septic system or direct discharge onto the
ground.
3.2.7 Former Garage Area
The fonner garage area is located in the southwestern portion of the site. This high one story
steel framed and metal clad stmcture was approximately 40 ft x 50 ft in size and had roll curtain
steel doors. It reportedly had electricity but no plumbing. The garage was presumably used to
store and maintain facility vehicles. Review of appraisal records for the site indicates that there
were several vehicles including a station wagon, two pickup tmcks, four dump tmcks, three
cranes, a bulldozer, tractor, fire tmck, and a front end loader.
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without the express written permission of EPA
,_
RI/FS Work Plan
Reasor Chemical Company Site
Section: 3
Revision: 0
Date: April 1997
Potential\eleases to soil and groundwater from petroleum associated with operation and
maintenance of vehicles associated with the fonner Reasor Chemical site is the primary concern
in this area.
3.2.8 Former Still Area
The former still area is located in the central portion of the site immediately west of Pond No.
3. It presumably housed the plant distillation unit. The subject building was reportedly a two
story, steel framed and metal clad stmcture approximately 16 ft by 25 ft in size and had
electricity but no heating, air conditioning nor plumbing.
The primary potential release pathway for the fonner still area is seepage through cracks in the
building floor.
3.2.9 Former Transformer Area
Historical infonnation indicates that transfonners were previously located northwest of the chip
processing area. Remnants of the concrete pad that contained the transfonners is currently
present on-site. During the operational period of the Reasor Chemical facility (1959-1972),
dielectric fluids used in transfom1ers sometimes contained polychlorinated biphenyls (PCBs).
Potential release of PCB containing fluids into the surrounding soil and groundwater from
operation and maintenance of the transfonners is the primary concern in this area.
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
3.2.10 U-Shaped Settling Pond
RI/FS Work Plan
Reasor Chemical Company Site
Section: 3
Revision: 0
Date: April 1997
AU-shaped Pond is located in the northeastern portion of the facility. Reportedly this pond was
used as a reservoir for water storage. The water in this pond was dark in appearance and
somewhat stagnant. Neither a sheen nor other signs of contamination were observed at the
settling pond during the site visit. However, analytical results from a sample collected by Law
in 1989 in the southeastern portion of the settling pond indicated the presence of acetone and
phenol in sediment.
The primary concern in this area is release of chemicals into the surface water, sediment, and
groundwater as the result of past discharges from plant operations into this pond.
3.2.11 South Ponds
South Pond No. I covers an area of approximately 0.2 acres. During the site visit, dark,
generally stagnant water was observed in Pond No. I but no obvious signs of contamination
were evident. Sediment samples collected from this pond also revealed the presence of benzene,
toluene, xylene, acetone, and phenol.
The South Ponds are located in the southeastern portion of the site. South Pond No. 2 (i.e., the
smaller of the two ponds) covers an area of approximately 0.1 acres. Dark, stagnant water was
also observed in this pond during the site visit. Analytical results from a sediment sample
collected by NC DEHNR during the SI indicated the presence of benzene, ethylbenzene, toluene,
and xylene.
NOA/K;\ WP\ 04AOO\ 077\ WPMAT002. WP 3-9
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RI/FS Work Plan
Reasor Chemical Company Site
Section: 3
Revision: O
Date: April 1997
Environi~ental concerns related to the South Ponds are from potential release to surface water/
sediment/groundwater from chemicals previously discharged into the pond during past plant
operations.
3.2.12 Pond No. 3
Pond No. 3 is located in the central portion of the site and was observed to contain dark,
stagnant water during the site visit. This pond was apparently used as a waste lagoon m
conjunction with Pond No. 4. Sediment samples collected by Law revealed the presence of
benzene, toluene, xylene, acetone, and phenol.
3.2.13 Pond No. 4
Pond No. 4 is located in the north central portion of the site and consists of a square shaped
depression covering an area of approximately 0.1 acre. The pond bottom appeared to be 2-4 feet
below the surrounding land surface and was predominantly dry with the exception of a few
inches of water in the center of the depression. Staining of the soil was evident and a portion
of a large pine tree had apparently fallen over near the center of the pond. This fonner pond
was apparently previously used as a waste lagoon. Results from a soil sample collected from
this area by Law Environmental indicated the presence of acetone, benzene, toluene, and xylene.
Environmental concerns related to Pond No. 4 are from potential releases into the surface water/
sediment/groundwater from chemicals previously discharged into the pond during past plant
operations.
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without the express written permission of EPA. ·
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3.2.14 brum Disposal Area
RI/FS Work Plan
Reasor Chemical Company Site
Section: 3
Revision: 0
Date: April 1997
The drum disposal area is located on the east side of an on-site drainage ditch in the north
central portion of the site (Figure 3-1). This area consists of approximately 20-30 badly rusted,
overturned 55-gallon drums scattered along a 50-75 feet stretch of drainage ditch. Some of the
drums contain a dark brown resinous material believed to be associated with past plant
operations. No evidence of surface contamination was observed during the site visit; however,
the ground was covered with pine needles and other vegetation, preventing complete observation
of surface soils. A soil sample from this area indicated the presence of acetone, phenol, and
PAHs.
Leakage and leachate from the overturned and rusted drums in this area are the primary release
mechanism. The leakage could impact surface soil, subsurface soil and groundwater. Given the
drums position adjacent to a drainage ditch, leakage could also impact surface water and
sediment.
3.2.15 Former Refinery Building
The fonner refinery building was located in the central portion of the site immediately northwest
of the fonner extractor (see Figure 3-1). This building occupied an area of approximately 4,600
square feet and had a concrete floor. Appraisal records indicate the presence of up to nine steel
tanks associated with this building. Presumably the pine tar compounds were conveyed to this
building for refinement following the extraction process.
NOA/K: \ WP\ 04400\ 077\ WPMA T002. WP 3-11
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 3
Revision: O
Date: April 1997
Release of chemicals through cracks in the floor into the underlying soil and groundwater is the
primary concern related to the Fornier Refinery Building.
3.2.16 Above-Ground Piping System
During the EPA-WESTON site visit, remnants of an above-ground piping system were observed.
Reportedly this system was used to transport pine products across the site during past operations.
Leakage from past operation of the above-ground piping system could impact surface and
subsurface soils as well as groundwater and surface water/sediment.
3.2.17 Former Water Supply Wells
Historical infonnation indicates up to 4 wells were drilled at the Reasor Chemical Site and at
least one of the wells was never used. Records indicate that wells were cased from 14-34 feet
below land surface, possibly indicating the depth to bedrock. To date, only one of these wells
has been found and it is reportedly located near the work tank area. The wells apparently
penetrated the Castle Hayne and Pee Dee Fonnations to a maximum depth of 212 feet.
Additionally, the NC Division of Environmental Management installed a monitoring well in the
southeast comer of the site to monitor groundwater elevations because of Martin Marietta's
operation of a nearby quarry. The subject well was reportedly screened in limestone from 22-48
feet. During The NC DEHNR site investigation and WESTON's site visit, this well could not
be located and may have been dismantled or damaged.
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without the express written permission of EPA.
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RljFS Work Plan
Reasor Chemical Company Site
Section: 3
Revision: O
Date: April 1997
Degradation of or damage to the casings and/or covers of these wells could provide a
preferential pathway into the groundwater, resulting in a release of suspected site contaminants
into the aquifer.
3.2.18 Sluice Area
The sluice area is located in the northeastern portion of the site and consists of wood chips
scattered on the ground. In some areas the wood chips are several inches deep. The sluice area
covers an area of approximately 2 acres. A soil sample collected from this area by Law in 1989
and analyzed for acetone and benzene contained an acetone concentration of 125 µg/L. The
sample was not analyzed for other VOC constituents, PAHs, pesticides, or metals.
The primary concern in this area is leaching of any residual chemicals in the wood chips (i.e.
solvents and pine tar) into the soil and groundwater. Additionally rnnoff from this area could
also impact surface water and sediment.
3.2.19 Scrap Copper Area
An area containing charred scrap wire insulation and conduit is located in the west-central
portion of the site. Apparently electrical wiring from the site was burned in this area to recover
the copper from the insulation. Burning of the material may have resulted in release of copper
and/or chemicals associated with the insulation onto the surface soil. These materials (if present)
could migrate to subsurface soils and groundwater.
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part, without the express written permission of EPA.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 3
Revision: O
Date: April 1997
3.2.20 Additional Study Areas Identified from Historical Aerial Photographs
During the aerial photograph review, several potential new study areas were identified. These
areas include:
•
•
•
•
Two small unidentified buildings south of fonner laboratory site .
Two small unidentified buildings east of the boiler house along the east access
road.
A wet area northwest of the north tank cradle area .
A large mound located immediately northwest of the sluice area .
• A large mound area located north of the northwest comer of the site.
• A building located approximately 150 feet north of the fomier garage building
location.
These features/buildings were not identified in the previous investigations and the use/purpose
of the aforementioned structures is not currently known. During the RI phase, WESTON will
attempt to gain further infonnation about the use of these areas and physically inspect and
sample these areas (if warranted).
3.2.21 Water Lines
According to a hand drawn 1962 map provided by the local fire chief, there were water lines
present on site. These water lines (if present) could provide a potential preferential pathway for
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. lt shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 3
Revision: O
Date: April 1997
migratio~'··of contaminants. During Phase I of the Work Plan, WESTON will attempt to locate
the former water lines and collect subsurface samples (if warranted).
3.2.22 Building Materials
Asbestos materials were reportedly used in the constmction of some of the site buildings.
Although no evidence of these materials is present on the surface, WESTON will note any
suspected materials found during the RI soil sampling activities.
3.3 INITIAL IDENTIFICATION OF APPLICABLE OR RELEVANT
AND APPROPRIATE REQUIREMENTS
Superfund remedial actions under SARA must attain the applicable or relevant and appropriate
requirements (ARARs) of federal, state, or local environmental statutes, whichever are most
stringent. Federal standards could include RCRA, Clean Air Act, Safe Drinking Water Act,
Clean Water Act, or the Toxic Substances Control Act. State of North Carolina standards could
include any promulgated by the State Environment Management Commission. Screening of the
remedial action alternatives will require an evaluation of each alternative with regard to its
ability to comply with the ARARs. The ARARs are generally based on acceptable levels of
contamination for the preservation of the environment and the public health and welfare. ARARs
may also include consideration of technical and economic feasibility.
ARARs can be categorized as: (I) chemical-specific, (2) location-specific, or (3) action-specific
requirements. Chemical-specific requirements are used to define acceptable exposure levels and
are used to define remedial action objectives. Location-specific requirements set restrictions on
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
·,.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 3
Revision: 0
Date: April 1997
activities 'within specific locations, such as floodplains or wetlands. Action-specific requirements
set restrictions for particular treatment and disposal activities pertaining to hazardous wastes.
ARARs will be considered throughout the RI/FS process. As the RI/FS progresses, each ARAR
will be defined based on the accumulated site data.
Preliminary sources of ARARs have been identified for the Reasor site and are included in Table
3-1. A preliminary list of chemical-specific ARARs for the previously identified contaminants
are presented in Table 3-2.
3.4 SCOPING OF REMEDIAL ALTERNATIVES
Based on the existing site inforniation collected during the State of North Carolina Site
Inspection and a conceptual understanding of the site conditions, potential remedial action
alternatives have been identified for each contaminated medium. This preliminary list of
alternatives is a general classification of potential actions developed to help ensure that the
necessary data is collected during the RI to adequately analyze each alternative.
3.4.1 Identification of Preliminary Remedial Response Objectives
Based on the study areas described in Subsection 3.2, the following media and related remedial
action objectives have been developed:
On-Site Soil -Surficial soils have been found to contain benzene, toluene, xylene, acetone, and
phenol. The objective related to protection of human health would be to prevent ingestion
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\
FEDERAL
STATE
Table 3-1
Summary of ARAR Sources Evaluated
Resource Conservation and Recovery Act (RCRA)
Clean Water Act (CW A)
Safe Drinking Water Act (SOW A)
Clean Air Act (CAA)
Occupational Safety and Health Act (OSHA)
Hazardous Materials Transportation Act
Protection of Wetlands (Executive Order 11990)
Floodplain Management (Executive Order I I 988)
RI/FS Work Plan
Reasor Chemical Company Site
Section: 3
Revision: 0
Date: April 1997
Regulations Protecting Landmarks, Historical, and Archeological Sites
Endangered Species Act
Fish and Wildlife Coordination Act
EPA OSWER Soil Screening Levels
North Carolina Hazardous Waste Management Rules and
Solid Waste Management Law
North Carolina Water and Air Resources Act
North Carolina Water Pollution Control Regulations
North Carolina Drinking Water Act
North Carolina Drinking Water and Groundwater Standards
North Carolina Surface Water Quality Standards
North Carolina Air Pollution Control Regulations
NOA/K:\ WP\ 04400\ 077\ WPMAT002. WP 3-17 4/97
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. Jt shall not be released or disclosed, in whole or in part, without the express written permission of EPA.
Table 3-2
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Rl(FS Work_Plan
Reasor. Chemical Company Site
Section: 3
Revision: O
Date: April 1997
Preliminary Applicable or Relevant and Appropriate Requirements
Surface Water
Maximum
Contaminant Aquatic Fish/Water
Compound Level (l\lCLs)3 Groundwater' Lire Ingestion
Acetone NIA 700 NIA NIA
Toluene 1,000 1,000 I 1.0' 6,8005
Xylenes I0,000 530 NIA NIA
Phenol NIA 300 NIA 21,00D'
Toxaphene 1,000 0,031 0,0002' 0.000735
Benzene 5 1.0 NIA 1.2'
1 All units are micrograms per liter (µg/L).
'State or North Carolina Groundwater Quality Standard; 15NCAC2L.0202.
3 Drinking \Vater Regulations and Health Advisories; US EPA Office of Water, November 1994. 'State of North Carolina Surface Water Standards; 15NCAC2B.0208-.021 l.
'Water Quality Standards; Federal Register VoL 57.12/22/92, U.S. Environmental Protection Agency. 6 Draft Interim Soil Screening Level Guidance (Oswer, August 19, 1993). 7 NI A -no criteria or standard available.
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Human Health/
Fish Soils'
Consumption (mg/kg)
NIA NIA
NIA 16,000,0
NIA 160,000,0
4,600,000' NIA
0.000755 NIA
71A' 22.0
04/97
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RI/FS Work Plan
Reasor Chemical Company Site
Section: 3
Revision: 0
Date: April 1997
and/or dii-ect contact with soil having 104 to 10·• excess cancer risks on above reference doses.
The remedial action objective for environmental protection would involve prevention of
contaminant migration into the groundwater and to nearby surface water.
Surface Water and Sediments -Sediments and surface water from the on-site surface
impoundments, as well as sediment from the wetland areas leading to Prince George Creek, also
revealed low levels of volatile organic compounds. The protection of human health to prevent
ingestion and/or direct contact is the primary objective. The remedial action objective for the
protection of the environment would involve protection of endangered animal or plant species
and protection of fisheries downstream of the site.
Groundwater -To date, benzene, toluene, xylene, and phenol have been detected in the
groundwater in on-site wells adjacent to the surface water impoundments. No off-site organic
contaminants have been detected in the closest public drinking wells. The remedial action
objective will be to confinn the limits of the contamination plume and restore the aquifer to
acceptable cleanup levels.
Solid Waste Materials -Solidified pine tar materials are present in drnms and on the surface
adjacent to the tank cradle areas. While no chemical analysis has been perfonned on the
material itself, soil samples collected nearby reveal the presence of BTX, acetone, and phenol.
The remedial action objectives for this solid waste material are the same as for on-site soils -
prevent ingestion and direct contact with wastes having IO-' to 10·• excess cancer risks and
prevent migration of contaminants into groundwater.
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This document was prepared by Roy F. Weston, Inc., expressly for EPA It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA
·,
RI/FS Work Plan
Reasor Chemical Company Site
Section: 3
Revision: 0
Date: April 1997
3.4.2 ld~ntification of Preliminary Remedial Response Actions
and Remedial Alternatives
A preliminary evaluation of potential response actions and remedial alternatives has been
conducted. The following lists are for each medium includes alternatives that are relevant to the
site conditions and are based on the amount of infonnation known to this point. This general
list will be refined as data from the RI is made available.
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Sediments
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No action/institutional controls such as fencing and deed restrictions .
Containment actions -Capping with an impenneable soil or synthetic layer.
Surface controls to divert surface water.
Excavation and off-site disposal at a permitted facility .
Ex-situ treatment using excavation and on-site biological treatment.
In-situ treatment using a soil vapor extraction technology to remove VOCs from
the unsaturated soils.
No action -Natural degradation within wetland areas .
Excavation and off-site disposal at a pennitted facility .
Excavation and on-site biological treatment.
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This document was prepared by Roy F. Weston, Inc., .expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
Groundwater
•
•
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•
RI/FS Work Plan
Reasor Chemical Company Site
Section: 3
Revision: 0
Date: April 1997
Containment actions-capping or vertical, horizontal, and sediment control
barriers.
No action/institutional controls -Alternative residential water supply and
monitoring.
Containment action -Capping with an impenneable barrier to reduce stonnwater
infiltration.
Collection and treatment on-site followed by reinjection or surface discharge .
In-situ treatment using an air sparging technology in conjunction with soil vapor
extraction.
Solid Waste Materials
•
•
No action/institutional controls including fencing .
Drums and solids removal with off-site disposal.
Ponds/Surface Water
• No action/institutional controls including fencing.
• Collection and treatment of water followed by removal and treatment of
sediments.
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This document was prepared by Roy F. Weston, Inc., expressly for EPA It shall not be released or disclosed, in whole or in part, without the express written permission of EPA.
4.1 PROJECT PLANNING
SECTION 4
RI WORK PLAN
RI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: 0
Date: April 1997
This section of the RI/FS Work Plan includes a comprehensive description of the work to be
performed that will characterize the site conditions. A complete description of the planned
methodologies to investigate each media is discussed along with the rationale for the selection
of each methodology. This section also includes the approach for conducting a Baseline Risk
Assessment based on data collected during the RI .
4.2 COMMUNITY RELATIONS
The community relations program for the Reasor Site will be carried out by EPA. However,
WESTON will be available to assist EPA as needed. WESTON's primary area of community
relations support will be attendance at public meetings to assist EPA in presenting technical
infonnation.
4.3 SUBCONTRACT PROCUREMENT
To meet the RI/FS requirements for the Reasor site, several subcontractors will be used as
appropriate to conduct various field services. These services include a direct-push technology
(DPT) geologic and groundwater investigation, drilling and monitoring well installation, site
preparation (e.g., fallen tree removal), and surveying of the installed monitoring wells. The
subcontractor services will include:
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•
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RI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: 0
Date: April 1997
Providing equipment and manpower for soil and groundwater sampling using
DPT (Geoprobe®);
Providing equipment, manpower, and materials for drilling, soil sampling, and
monitor well installation;
Analytical characterization of investigative derived wastes (IDW), geochemical
and geotechnical testing;
Disposal of IDW;
Land surveying for vertical and horizontal coordinates of monitoring wells and
other physical features;
Providing equipment and manpower to assist in clearing vegetation to improve
site access .
Request-for-quotation packages will be prepared and issued to at least three finns qualified to
provide each required service. Copies of the packages will be provided to EPA. Quotations and
qualifications of the fim1s will be reviewed, subcontractors will be selected, and subcontracts
will be executed. Copies of the subcontracts will be provided to EPA.
4.4 WORK PLAN APPROACH FIELD ACTIVITillS
The following paragraphs discuss the activities to be conducted during the field investigation at
the fonner Reasor Chemical site (the site) in Castle Hayne, North Carolina. Activities to be
conducted by WESTON at the site include groundwater, soil, surface water, sediment, and
residential and/or commercial well sampling. WESTON will also attempt to sample any
remaining drums or tanks for characterization purposes prior to disposal and conduct a limited
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without the express written permission of EPA.
Rt/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: 0
Date: April 1997
geophysical survey to attempt to locate the fonner water supply lines. Surveying of the fonner
site buildings and of the sampling locations will be directed by WESTON.
All field activities will be conducted in accordance with the methodology established by the
Science and Ecosystems Support Division (SESD) of EPA as described in the Environmental
Investigations Standard Operating Procedures and Quality Assurance Manual of May 1996.
Specific data collection procedures are described in the Field Sampling Analysis Plan (FSAP)
and the Quality Assurance Project Plan (QAPP).
4.4.1 Site Preparation
During the initial site visit with EPA, WESTON found that several large trees had fallen across
the access road and that certain portions of the road are in disrepair. Prior to investigative efforts
at the Reasor Chemical site, WESTON will make arrangements for the roads leading into and
around the site to be cleared of debris to facilitate site access. During this time, WESTON will
also arrange to have a mobile office established along the site access road and supplied with
electricity and telephone service. Portable septic facilities and solid waste disposal service will
also be arranged. Bottled water from a local vendor will be utilized for drinking water and
decontamination water will be stored on site in polyethylene tanks.
WESTON will also procure and direct North Carolina registered surveyors to reestablish the
locations of fonner Reasor Chemical buildings, and other significant site features (e.g., d111ms,
ponds, tanks, etc.) to allow for preparation of an accurate site map and assist in accurate
documentation of sample locations. The locations of fonner site facilities (i.e., buildings) will
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without the express written permission of EPA.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: O
Date: April 1997
be based on aerial photographs and other available records. It may be necessary to clear small
trees or brush from some locations to facilitate surveying and sampling activities.
During the site preparation phase, WESTON will attempt to establish the locations of the
aboveground product piping system previously located on-site and locations of the observed
remnants of the system will be documented by the surveyors. WESTON will also attempt to
locate the reported four production wells used at the site during previous operational activities.
The wells will be located using maps of the Reasor site from the period of active operations as
well as electromagnetic surveying methods. The electromagnetic surveying method will also be
used to determine the location of the fonner water supply lines and if drums or other items may
be buried underground at the dnnn disposal area and/or other investigation areas.
4.4.2 Well Survey
As part of a review the results of the residential well survey completed by the State of North
Carolina during the Site Investigation (SI) of 1994, WESTON will verify the location of each
residential well described in the SI report and will examine a one-half mile perimeter
surrounding the site for any additional or new residential or commercial wells. If new wells are
located, WESTON will try to ascertain construction specifications from the owner of the well
and will locate the well on maps of the area surrounding the site. The well verification survey
will be conducted on a drive-by basis. Additionally, the New Hanover County Health
Department will be contacted to located private or commercial wells within a one-quarter-mile
radius of the site. The result of the well survey will be a map showing all the private wells
within a one-half-mile radius of the site and corresponding documentation indicating the reported
use of each well.
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without the express written permission of EPA.
4.4.3 Geoprobe Groundwater and Soil Investigation
RI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: O
Date: April 1997
Review of historical infonnation from the Reasor Site indicates a strong potential for
groundwater and subsurface contamination beneath the site. To detem1ine if groundwater
contamination exists beneath the site, WESTON has developed a two-phased approach. Phase I
will include installation of 29 direct push technology or Geoprobe borings at various locations
on the site. The purpose of these borings is to establish the groundwater flow direction beneath
the site and detem1ine groundwater quality on and around the site. The Phase I groundwater
sampling will be part of a larger field effort to canvass the site and collect samples and data
from several matrices, including soil, surface water, and sediment.
Phase II will include installation of up to ten additional Geoprobes (if needed) and installation
of up to 8 pennanent monitor wells. The purpose of the Phase II Geoprobes is to complete
delineation of the groundwater plume. The purpose of pennanent wells is to confinn definition
of the groundwater contaminant plume (if present) based on the Geoprobe investigation.
4.4.3.1 Phase I Geoprobe
A detailed description and justification of the Phase I Geoprobe borings is provided below.
Phase I groundwater sampling will include collection of 58 groundwater samples from 29
Geoprobe boring locations (Figure 4-1). The first groundwater sample will be collected from
the top of the water table, which is expected to be within the local regolith aquifer. The second
NOA/K;\ WP\ 04400\ 077\ WPMAT002. WP 4-5 4/97
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SOORCf:
KUCERA. INT. AERIAL PHOTOS. RrAL PROPEJHY W Of CAPE FEAR.
LAW £N'-'RONM£NTA1. INC. SITE MAPS
::::;
I"=
::J
l8!,
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"'
N J,
< .... "' ~
WOODED AREA
---DRUM OIS'OSAL
AREA
...r AREA ~
LABOOATOOY
NORlH
TANK OiADl..f
AREA
l8!,, D
SOOni TANK_/",
CRADU' AREA
PROPERTY UNE APPROXIMATE WE'TlANO UMJTS
PLT. SC.
FILE NO.
REASOR CHEMICAL COMPANY
CASTLE HAYNE, NORTH CAROLINA
CONCEPTUAL GEOPROBE
BORING LOCATIONS
FIGURE 4-1
DRAl.'N
CHECKED
. SLUICE AREA
WRS
,.l8!
\ ~E:::~ROBE BORING LOCATION-FOR
GROUNDWATER AND SOIL SAMPLE
COLLECTION I .l.UG PROPOSED UPGRADIENT SAMPLE LOCATION
GROUNDWATER FLOW DIRECTION IS
ASSUMED TO BE SOUTHEAST.
I
THUS, GEOPROBE BORINGS HAVE BEEN
GENERALLY, PLACED SOUTHEAST OF
SUSPECT SOURCE AREAS. LOCATIONS
WILL BE ADJUSTED BASED ON ACTUAL
GROUNDWATER FLOW DIRECTION.
200' 400'
SCALE FEET
DATE DES, ENG. DATE
12-96
DATE APPROVED DATE
\J, □. ND,
04400-077
D\JG, N□.
04400-03
)
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA
RI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: 0
Date: April 1997
groundwriter sample will be collected from the top of the Castle Hayne Limestone fonnation
(estimated depth 28 ft bis). The location and justification of the 29 Geoprobe borings are
provided in Table 4-1.
All groundwater and soil samples collected during Phase I activities will be analyzed for VOCs,
SVOCs, and TAL metals. Additionally, samples collected downgradient of the scrap copper
area will be analyzed for PCBs and dioxin. Samples collected downgradient of the transfonner
area will be analyzed for PCBs. Upgradient and downgradient (i.e., borings 4, 5, 26, and 28)
samples will be analyzed for VOCs, SVOCs, TAL metals, dioxin, and PCBs.
Chemical analysis of Analytical Level IV samples will be perfonned following the current EPA
Superfund Contract Laboratory Program (CLP) Statement of Work for Multi-Media, Multi-
Concentrations Organics and Inorganics. Chemical analyses of Analytical Level ill samples will
be conducted in compliance with the requirements of the analytical methods specified in the
FSAP. The current CLP target compounds and corresponding quantitation limits are provided
as Appendix A. With the exception of the residential well sa111plcs, quantitation li111its for Multi-
Media Organic and Multi-Media Inorganic CLP services will be used. Residential well samples
will be analyzed using the low concentration organic service.
All of the Phase I Geoprobe locations will be used to deter111ine the direction of groundwater
flow across the site. This infonnation will be obtained through the installation of temporary,
one and one-half inch PVC screen and casing into the Geoprobe boreholes. Once installed, the
elevation and location of the top of the PVC casing will be measured by a registered surveyor.
These data will be used to determine the elevation of the groundwater table and, subsequently,
the direction of groundwater flow across the site. Groundwater sa111ples will be collected from
NOA/K:\ WP\ 04400\ 077\ WPMA T002. WP 4-7 4/97
- - - - - -- -- -- - - - ----
This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part, without the express written permission of EPA.
Boring
Designation Boring Location
I Immediately south of former
garage location
2 Near west and south site access
roads intersection
3 Central portion of west access
road
4 Northwest corner of the site
5 Northeast of the site
6 U-shaped settling pond
7 North tank cradle area
8 Drum disposal area
9 Rosin warehouse
Table 4-1
Geoprobe Boring Summary
Reasor Chemical Company
Castle Hayne, NC
Purpose of Boring
Determine if subsurface contamination
downgradient of the former garage area
Determine if subsurface contamination exists
southwest comer of the site
exists
m the
Determine if contaminant plume exists along the
western site boundary
Evaluate subsurface soil and groundwater quality
upgradient of the site
Evaluate soil and groundwater quality upgradient of
the site
Evaluate soil and groundwater quality downgradient
of settling pond
Deter1'.1ine if subsurface contamination exists adjacent
to north tank cradle area
Determine if subsurface contamination exists
downgradient of drum disposal area
Determine if contamination exists downgradient of the
former rosin warehouse
Note: See Appendix A for CLP target compound list and practical quantitation limits.
NOR/ K; \ WP\ 04400\ 07 7 \ WPMAT002. WP
RI/FS Work Plan
Reasor Chemical Company Site
Section; 4
Revision: O
Date: April 1997
Analytical Parameters
VOCs, SVOCs, and TAL metals
VOCs, SVOCs, and TAL metals
VOCs, SVOCs, and TAL metals
VOCs, SVOCs, TAL metals, PCBs, and
dioxin
VOCs, SVOCs, TAL metals, PCBs, and
dioxin
VOCs, SVOCs, and TAL metals
VOCs, SVOCs, and TAL metals
VOCs, SVOCs, and TAL metals
VOCs, SVOCs, and TAL metals
4/97
-
- --------------- --
This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part, without the express written permission of EPA
Boring
Designation Boring Location
10 \York tank area
11 Scrap copper area
12 Former laboratory
13 Still area
14 Pond No. 3
15 Pipe line
16 Refinery
17 Eastern border of the site
Table 4-1 (Continued)
Geoprobe Boring Summary
Reasor Chemical Company
Castle Hayne, NC
Purpose of Boring
Determine if subsurface contamination exists adjacent
of the former work tank area
Evaluate soil and groundwater quality downgradient
of scrap copper area
Determine if potential contamination • exists
downgradient of former laboratory area
Determine if contamination exists downgradient of
former still area
Determine if contamination exists downgradient of
Pond No. 3
Determine if subsurface contamination exists
downgradient of the pipe line
Determine if subsurface contamination exists
downgradient of refinery
Determine groundwater quality along eastern border
of the site and downgradient of former unidentified
buildings
Note: See Appendix A for CLP target compound list and practical quantitation limits.
NOR/K: \ WP\ 04400\ 07 7\ WPMA T002. WP 4-9
/
RJ/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: O
Date: April 1997
Analytical Parameters
voes, SVOes, and TAL metals
voes, SVOes, TAL metals, PeBs, and
dioxin
Voes, SVOes, and TAL metals
voes, SVOCs, and TAL metals
voes, SVOes, and TAL metals
Voes, SVOes, and TAL metals
voes, SVOes, and TAL metals
voes, SVOes, and TAL metals
4/97
-
-- ---- --- -- - -- ----
This document was prepared by Roy F. Weston, Inc., expressly for EPA It shalt not be released or disclosed, in whole or in part, without the express written permission of EPA
Boring
Designlltion Boring Location
18 Boiler house
19 Chip processing area (central
portion)
20 Chip processing area (extractor)
21 Former naptha tank area
22 Transformer area
23 Pipe shop
24 Sluice area
25 Sluice area
Table 4-1 (Continued)
Geoprobe Boring Summary
Reasor Chemical Company
Castle Hayne, NC
Purpose of Boring
Evaluate subsurface conditions downgradient
former boiler house
of
Evaluate groundwater quality downgradient of chip
processing area
Evaluate subsurface conditions downgradient of
former extractor
Determine if contamination exists beneath former
naptha tank area
Determine if contamination exists downgradient of
former transformer pad
Determine if contamination exists downgradient of
former pipe shop
Determine soil and groundwater quality beneath sluice
area
Determine if contamination exists downgradient of the
former sluice area
Note: See Appendix A for CLP target compound list and practical quantitation limits.
NOA/K:\ WP\ 04400\ 077 \ WPMA T002. WP 4-10
RI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: 0
Date; April 1997
Analytical Parameters
VOCs, SVOCs, and TAL metals
VOCs, SVOCs, and TAL metals
VOCs, SVOCs, and TAL metals
VOCs, SVOCs, and TAL metals
VOCs, SVOCs, TAL metals, and PCBs
VOCs, SVOCs, and TAL metals
VOCs, SVOCs, and TAL metals
VOCs, SVOCs, and TAL metals
4/97
-
--- - -- --- --- -- ----
This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part, without the express written permission of EPA.
Boring
Designation Boring Loca.tion
26 Southeast comer of the site
27 Ponds No. I and No. 2
28 Southern site border
29 Pond No. 4
Table 4-1 (Continued)
Geoprobe Boring Summary
Reasor Chemical Company
Castle Hayne, NC
Purpose of Boring
Evaluate subsurface conditions in the southeast comer
of the site
Determine if contamination exists downgradient of
Ponds No. I and No. 2
Evaluate subsurface conditions along southern border
of the former plant site
Determine if subsurface contamination exists
downgradient of Pond No. 4
Note: See Appendix A for CLP target compound list and practical quantitation limits.
NOA/K: \ WP\ 04400\ 0 77 \ WPMA T002. WP 4-11
/
RI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: O
Date: April 1997
Analytical Parameters
VOes, SVOes, TAL metals, PeBs, and
dioxin
voes, SVOes, and TAL metals
VOes, SVOes, TAL metals, PeBs, and
dioxin
voes, SVOes, and TAL metals
4/97
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This document was prepared by Roy F. Weston, Inc,, expressly for EPA It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
'·-,
Rl(FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: O
Date: April 1997
each location after the surveying has been completed. After the groundwater samples have been
collected, the PVC will be removed so that the boring can be continued to the top of the Castle
Hayne.
During the installation of each Geoprobe boring, soil samples for geologic and hydrogeologic
characterization will be collected continuously from the surface to boring tennination depth. The
tennination depth will be detennined by the on site WESTON geoscientist based upon data
collected during the investigation. One soil sample from the unsaturated zone of each boring will
be collected for laboratory analysis. To detennine which sample will be submitted for analysis,
all unsaturated soil samples will be scanned with an Organic Vapor Analyzer (OVA)/Photo-
Ionizing Detector (PID) to determine if volatile organic compounds (VOC) are present. In
addition to the scanning, each sample will be examined by the on-site WESTON representative
for evidence of staining or other indications of contamination. All Geoprobe boring locations
completed during each phase of work will be backfilled to surface with a bentonite cement grout
mixture.
4.4.3.2 Phase II Geoprobes
Phase II groundwater sampling will include the installation of up to l O Geoprobe borings with
the collection of up to 20 groundwater samples. The locations and analytical parameters for
these borings will be based on the data collected in Phase I. The grouudwater samples for Phase
II will be collected from the same zones as described for the Phase I investigation (i.e., top of
the water table and top of the Castle Hayne.
NOA/K:\ WP\ 04400\ 077\ WPMA T002.WP 4-12 4/97
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
RJ/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: 0
Date: April 1997
Unsaturated soil samples for laboratory analysis will be collected from each of the ten Phase II
Geoprobe borings. Soil samples for geologic and hydrogeologic characterization will be
collected continuously from each boring during the Phase II investigation. Soil sample collection
for laboratory analysis will be based upon the soil and groundwater sample analytical data
collected during the Phase I investigation, as well as FID/PID readings and observations made
during Phase II boring installation.
4.4.4 Surface Soil Investigation
As part of the Phase I field effort, WESTON will collect surface soil samples from the on-site
areas of concern (Figure 4-2). This sampling effort is designed to: (I) detennine if contaminants
are present in the areas of concern; (2) concentration of contaminants (if present); and (3)
general horizontal extent of contamination within each area of concern. A grid will be
established at each area of concern. The grid spacing will be based on the relative size of the
area of concern. Composite surface soil samples will be collected from O to I foot below land
surface using hand augers. The number of samples collected and corresponding analytes within
each area of concern are presented in the following table.
NOA/I<:\ WP\ 04400\ 077\ WPMAT002.WP 4-13 4/97
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(5
• '\_ BG
"'
•
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• ONE SURFACE SOIL SAMPLE TO BE LOCATED IN FORMER
MOUND AREA APPROX. 500 FT. NORTH OF NORTH ACCESS RD .
---ORUM DISPOS>J.... AREA
WOODED AREA
\IET AREA ~
~ATORY
NORTI<
TANK CRADL£
AREA
•
•
SOOlH T~ Y::
CRADLE AREV r-
PROPERTY LINE APPROXIMATE ViEn.ANO UWITS
REASOR CHEMICAL COMPANY
CASTLE HAYNE, NORTH CAROLINA
• 1WO BACKGROUND SAMPLES TO BE LOCATED
800 FEET NORTH OF NORTH ACCESS ROAD
• •
SLUICE AREA
• •
• •
• •
•
LEGEND
PROPOSED SURF ACE SOIL SAMPLE
LOCATION
(ACTUAL SAMPLE LOCATIONS WILL BE.
DETERMINED DURING FIELD INVESTIGATION.)
\. BG INDICATES POTENTIAL BACKGROUND
SAMPLE LOCATION.
200'
SCALE
400'
FEET
PROPOSED SURFACE SOIL nRA\JN DATE "'· a. N□.
SWRCE,
SAMPLE LOCATIONS WRS 12-96 04400-077
I KUCERA INT. AERIAL PHOTOS, REAL PRIPER1Y 1,,1 CF CAPE FEAR. PL T. SC. CHECKED DATE APPROVED DATE Dw'G. NO.
'---LA_w_.,,_~_•""_""'_'_''_N_c._S1TE_MAP_s _____________________ F_I_LE __ N_O_. ______ L__ ________ F_IG_U_R_E __ 4_-_2 ________ -1_ _______ l-___ L... ______ .1._ ___ _J__,:Occ4c__4c:O:..:Oc..-~0-'4--'
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
~ithout the express written permission of EPA.
Area of Concern
Former garage location
Former Pipe Shop
Former Transformer bank
Former Chip Processing/Extraction Area
Former Refinery location
Fonner Laboratory location
Former Electric Wire/Scrap Copper area
Former Work tanks and Still location
Drum Disposal area
Northwestern Tank Cradle area
Former Rosin Warehouse location
Sluice Area
Unidentified building north of former garage
Wet area (1966)
Apparent mound/stockpile northeast comer
of site
Apparent mound/stockpile northwest comer
of site
Unidentified buildings south of laboratory
Unidentified buildings southeast of boiler
house
Pipe line
Truck scale
Upgradient/Background samples
Number of
Samples
3
4
4
30
6
8
6
IO
9
IO
8
10
2
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2
5
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RI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: 0
Date: April 1997
Analytical Parameters
VOCs, SVOCs, and TAL metals
VOCs, SVOCs, and TAL metals
VOCs, SVOCs, and PCBs
VOCs and SVOCs
VOCs and SVOCs
VOCs, SVOCs, and TAL metals
TAL metals, SVOCs, VOCs,
PCBs, and dioxin
VOCs and SVOCs
VOCs and SVOCs
VOCs and SVOCs
VOCs and SVOCs
voes and SVOCs
VOCs and SVOes
VOCs and SVOCs
VOes and SVOCs
VOCs and SVOCs
VOCs and SVOes
VOCs and SVOCs
VOCs and SVOCs
VOCs and SVOCs
VOCs, SVOCs, TAL metals,
PCBs, and dioxin
At least one sample from each area of concern will be submitted for full analytical parameter
analysis. Target compounds and quantitation limits are provided in Appendix A.
NOA/K:\ WP\ 04400\ 077\ WPMAT002. WP 4-15 4/97
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This document was prepared by Roy F. Weston, Inc., expressly for EPA It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA
RI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: 0
Date: April 1997
A total of three background surface soil samples will be collected from three separate areas
around the site considered to be unaffected by previous site activities. Each of the background
samples will be submitted for full scan analysis (i.e, VOCs, SVOCs, TAL metals, pesticides,
dioxin, and PCBs). Soils not collected from a boring for laboratory analysis will be used to
backfill the borehole. Surface soil sample locations will be marked with a colored pin flag.
4.4.5 Sediment Sampling
As part of Phase I site activities, up to 23 sediment sampling locations will be collected from
the locations shown in Figure 4-3. The purpose of the sediment sampling is to attempt to define
potential contamination within on site drainage ditches and ponds as well as off-site drainage
ditches, small streams, creeks, and swamps. The sediment sampling sites include:
•
•
•
•
•
•
•
•
•
•
•
•
•
Two upgradient locations north of the northeastern comer of the site
Two upgradient locations near the northwestern comer of the site
Seven separate locations within the on-site drainage ditches
One location within the settling pond at northeastern end of the site
One location within South Pond No. 1
One location within South Pond No. 2
One location within Pond No. 3
One location within the drainage pond in the central portion of the site
One location within Pond No. 4
One location within the drainage ditch that emanates from the sluice area
One location within a small stream emanating from the eastern edge of the site
Two locations within the Prince George Creek
Two locations within the swamp on the north border of Prince George Creek
All sediment samples will be analyzed for VOC and SVOC content. The four upgradient
locations, the two locations within Prince George Creek, and the location at the southeastern encl
NOR /K:\ WP\ 04400\ 077\ WPMA T002. WP 4-16 4/97
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SOURCE:
KUCEHA INT. ,\ERIAL PHOTOS, REAL PROPERTY MAP OF CAPE FEAR.
LAW ENVIRONMENTAL INC. SITE MAPS
f j
':/<~ f "t,8G
g
H p
0
-□
"--•ONE SURF'AC:: SCJL SAMPLE TO BE LOCATED IN FORMER
MOOND ARE:A APPROX. 500 FT. NORTH OF NOR1H AccESS RD,
I ~
--• ~-
PROPE.R1'1 UN£
PLT. SC.
FILE NO.
WOODED AREA
NORrn ACctss Ito. SLUICE AREA
/
REASOR CHEMICAL COMPANY
CASTLE HAYNE, NORTH CAROLINA
PROPOSED SURFACE WATER AND
SEDIMENT SAMPLE LOCATIONS
FIGURE 4-3
DRA'w'N
CHECKED
LEGEND
• PROPOSED SEDIMENT SAMPLE LOCATION
-X PROPOSED SURFACE WATER SAMPLE LOCATION
BG INDICATES POTENTIAL BACKGROUND
SAMPLE LOCATION.
0 300' 600'
SCALE FEET
DATE DES. ENG. DATE
WRS 12 96
DATE APPROVED DATE
',/, □. NO.
04400-077
Dw'G, NO.
04400-01
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: 0
Date: April 1997
of the o~ ·site drainage ditches will be analyzed for the full analyte list (i.e., VOCs, SVOCs,
TAL metals, PCBs, and dioxin). See Appendix A for target compounds and associated
quantitation limits.
In an attempt to reduce the number of pond samples, WESTON will collect several samples
from the pond bottoms for visual observation. If the pond bottoms appear to be homogeneous,
then only one composite sample (composed of three aliquots) will be collected from each pond.
Should the visual observations indicate a nonhomogeneous condition, then multiple samples may
be needed. WESTON's costs will be based upon one sample per pond.
4.4.6 Surface Water Sampling
Surface water present on and off-site will also be sampled during the Phase I activities.
Depending upon water availability, up to 18 sampling locations will be established (see Figure
4-3). Approximately two-thirds of the samples will be collected from on site locations, if
possible. If water is not available on site, the number of samples will be reduced and the water
will be collected at off-site locations as close to the site as possible.
All surface water samples will be analyzed for VOCs and SVOCs (see Appendix A). Samples
from the following locations will also be analyzed for PCBs, dioxin, and TAL metals: four
upstream samples, one sample from the swampy area north of Prince George Creek, one sample
from Prince George Creek, and two samples from the southeast comer of the site.
NOA/K: \ WP\ 04400\ 077\ WPMAT002. WP 4-18 4/97
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shalt not be released or disclosed, in whole or in part,
without the express written permission of EPA.
4.4. 7 Residential and/or Commercial Well Sampling
RI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: 0
Date: April 1997
Residential sampling will be based upon the results of the well survey. For planning purposes,
up to three samples will be collected from residential wells and analyzed for all constituents of
concern (see Appendix A).
4.4.8 Phase II Permanent Monitor Wells
In order to continue long term monitoring of the groundwater underneath the site, WESTON will
install up to eight pennanent monitor wells on and around the site (Figure 4-4). The monitoring
system is designed to provide long tenn groundwater data from upgradient, downgradient, and
on site locations. Approximately six of the monitor wells will be installed at the top of the water
table (also referred to as shallow wells) and two wells will be installed at the top of the Castle
Hayne Limestone fonnation. The total number of wells and the final locations will be detern1ined
after review of the data collected during Phase I.
All monitor wells will be installed using hollow stem auger techniques. Each shallow well will
be installed using ten feet of stainless steel screen and the appropriate amount of stainless steel
riser pipe. The deep wells will be installed using 5 ft. screen. The width of opening or slot size
of the screen will be detern1ined after examination of the grain size of aquifer materials. The
aquifer materials will be collected during the Geoprobe investigation and processed through
sieves during the field investigation. During the installation of the monitor wells, well
construction materials, i.e., bentonite pellets, sand, cement, and potable water, will be sampled
for VOC and SVOC content. Installation techniques and specifications of each well are discussed
further in the Field Sampling and Analysis Plan (FSAP).
NOR /K:\ WP\ 04400\ 077\ WPMAT002. WP 4-19 4/97
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ICUCCRA INT. AERIAL PHOTOS. RUJ.. PRa>ERTY lr,I OF CAPE FEAR.
LAW EN\11RONMENTAL INC. SITE MAPS
WOODED AREA
I -DRUlril DtSPOSAl..
g
>ET AREA
~
ROSIN
WAAEHOOSE
AREA
LABORATORY
PROPERTY UNE
PLT. SC.
FILE NO.
NCJ'1H
TANI( CW:U:
AREA . --
SOUlH TANK
CRADLE AREA
□
APPROXIMA Tt: WEllAND LIMITS
REASOR CHEMICAL COMPANY
CASTLE HAYNE, NORTH CAROLINA
CONCEPTUAL PERMANENT
MONITOR WELL LOCATIONS
FIGURE 4-4
CHECKED
SLUICE AREA
WRS
LEGEND
DEEP MONITOR WELL LOCATION TO BE
INSTALLED AT THE BASE OF THE
SURFICIAL AQUIFER
0 SHALLOW MONITOR WELL LOCATION
INSTALLED AT AND THROUGH THE
TOP OF WATER TABLE
TO BE
LOCATIONS ARE APPROXIMATE. ACTUAL
LOCATIONS WILL BE DETERMINED AFTER
REVIEW OF DATA GATHERED DURING THE
PREVIOUS FIELD INVESTIGATION.
.\ UG INDICATES UPGRADIENT WELL
~
0
SCALE
200' 400'
FEET
DATE DES. ENG. DATE
12-96
DATE APPROVED DATE
\I. 0. NO.
04400-077
D\/G. NO.
04400-02
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission, of EPA.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: 0
Date: April 1997
After completion of the installation of the monitor wells, WESTON will develop each well
according to parameters outlined in the FSAP. The monitor wells will be sampled within one
week after development has been completed. Details of the sampling process are outlined in the
FSAP. During the sampling process, each monitor well will be surveyed for horizontal and
vertical location according to the North Carolina State Plane Grid. Water level measurements
collected during the sampling process will be converted to elevations after the survey has been
completed. The groundwater elevations, in conjunction with data from the Geoprobe
investigation, will be used to generate a potentiometric map for the site.
4.4.9 Aquifer Testing
Rising head slug tests will be perfom1ed on each of the new pennanent wells installed at the
Reasor site in accordance with the methodologies described in Section 3 of the FSAP. Wells will
be selected for slug testing such that the variability in subsurface conditions is represented. The
rising head water level data will be recorded electronically and downloaded to a personal
computer (PC) to be evaluated in accordance with Bouwer & Rice methodologies for unconfined
aquifers. These data will be utilized along with analytical data to evaluate potential fate and
transport of constituents of concern at the site.
4.4.10 Former Water Supply Wells
During the Phase I investigation WESTON will also attempt to locate the fonner water supply
wells reportedly located at the Reasor site. The well search will be conducted using visual
inspection of the suspected locations. If the wells cannot be located through visual inspection,
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RI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: O
Date: April 1997
geophysical equipment will be mobilized and used to search for the fonner wells. If the subject
wells are located, then WESTON will attempt to obtain water levels and collect groundwater
samples for VOCs, SVOCs, TAL metals, dioxin, and PCBs.
4.4.11 Investigation Derived Waste
All residuals from the well installation, including soil cuttings, paper, plastic, water, etc., will
be containerized on site and segregated according to type. All solid waste, i.e., paper, plastic,
etc., will be placed into trash bins for disposal at a local landfill. All soil cuttings will be placed
onto plastic sheeting for temporary storage before confinnatory sampling for hazardous
constituents, including VOCs and SVOCs. If analysis of residual soil samples does not reveal
any contaminant concentrations, the soil will be redeposited on site. All water generated during
decontamination, development, and sampling processes will be held temporarily in storage tanks
that have been brought to the site. The water will be processed through 55-gallon drnms
containing activated carbon in order to remove any VOC and SVOC contaminants. After
processing the water through the carbon containing dnnns and prior to disposal, the water will
be sampled for verification of VOC and SVOC content. If no contaminants are present, this
water will be released to the U-shaped settling pond.
4.5 SAMPLE ANALYSIS/VALIDATION
4.5.1 Sample Analysis
Chemical analysis of Analytical Level IV samples will be perfonned following the current EPA
Superfund Contract Laboratory Program Statement of Work for Multi-Media, Multi-
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part, without the express written permission of EPA.
•.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: O
Date: April 1997
Concentriitions Organics and Inorganics. Chemical analyses of Analytical Level III samples will
be conducted in compliance with the requirements of the analytical methods specified in the
FSAP.
4.5.2 Data Validation
Data validation is the process of screening data and accepting, rejecting, or qualifying its
usefulness on the basis of sound criteria, Data will be validated, as appropriate, based on
holding times, initial calibration, continuing calibration, blank results, and other QC sample
results. This will be perfonned by the EPA Region IV Laboratory Evaluation/Quality Assurance
Section,
The field team leader will review all field documentation for completeness, legibility,
consistency, and reasonable agreement with expected or typical results. Extreme, anomalous,
or seemingly unreasonable results will be accepted only after the accuracy of the measuring
instrument has been verified by one or more additional measurements delivering a similar
response, If data fails to meet calibration criteria or data quality objectives, the instn1111ent will
be tagged as out-of-service,
4.6 ENVIRONMENTAL FATE AND TRANSPORT MODELING EVALUATION
Data collected during the field investigation, including site physical characteristics, source
characteristics, and extent of contamination, will be used to generate analyses of contaminant
fate and transport, Typically infonnation on contaminant release history is available. As a result,
the observed extent of contamination may be used in assessing the transport pathway's rate of
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RI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: 0
Date: April 1997
migratiori·and fate of contaminants over a period between release and monitoring, If infomiation
on contaminant release history is not available from the Reasor Chemical site, contaminant fate
and transport will be estimated on the basis of site physical and source characteristics.
Applicable data will be compiled and entered into computer models for design of the fate and
transport regime. Infonnation generated from the model will be placed onto maps and other
diagrams, and presented within the RI report. A discussion_of significant mechanisms in the
subsurface will be presented along with a discussion of findings from the Reasor modeling
effort.
4.7 BASELINE RISK ASSESSMENT DEVELOPMENT
WESTON will provide a Baseline Risk Assessment to EPA consisting of both human health and
environmental/ecological risk assessments. This baseline risk assessment will identify and
summarize chemicals of potential concern (COPC), evaluate potential human and ecological
exposure, characterize the toxicity and effects of the COPC present at the site, describe their fate
and transport, and assess potential risk on human health and the ecological environment
(including both flora and fauna).
The procedures required to perfonn the human health and ecological risk assessment will follow
the general guidance provided by the Superfund Program and Supplemented by EPA Region IV
(EPA, 1989; I99Ia,b; 1992a,b; 1995a,b; 1996). EPA may also identify other guidance for the
ecological assessment as necessary. WESTON will also identify applicable or relevant and
appropriate requirements (ARARs) and develop preliminary remediation goals (PRGs) for human
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: 0
Date: April 1997
health pathways. However, it should be emphasized that only when the data from the RI are
received by WESTON can the final list of chemicals of concern be ascertained.
4.7.1 Human Health Risk Assessment
The human health risk assessment will .consist of the following components:
•
•
•
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Data Collection and Evaluation
Exposure Assessment and Documentation
Toxicity Assessment and Documentation
Risk Characterization
• Analysis
4. 7 .1.1 Data Collection and Evaluation
EPA will provide WESTON with QA/QC validated laboratory data generated during RI activities
at the site. WESTON assumes that the data will be provided on diskette 111 a standard
spreadsheet forniat in numeric values (i.e., Lotus, Excel). The data needs to include all
appropriate parameters necessary for data summarization (i.e., quantitation limits, units).
WESTON will review the available infonnation and shall identify the chemicals of potential
concern (COPC) in each medium.
The following guidelines, in accordance with EPA (1989a) and Region IV guidelines (EPA,
1991 b, 1995a) will be used in the data evaluation:
• If data are qualified as diluted or estimated, these data may be used but will be
evaluated on a case-by-case basis.
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RJ/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: 0
Date: April 1997
• ' If a sample is duplicated, the data from the two duplicates will be averaged.
• All }-qualified data are assumed to be valid data and will be used .
The data summaries for each medium will be tabulated to show for each chemical:
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Detection frequency
Range of detection limits
Arithmetic average of background concentrations
Arithmetic average of detected concentrations
Detected concentrations range
Risk-based screening value
Basis for elimination of selection as a COPC
The rationale for elimination or selection of a chemical as a COPC will be in accordance with
EPA (1989) and EPA Region IV guidelines (EPA, 1995a):
•
•
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Comparison of the maximum on-site detected concentrations with the risk-based
concentration table.
Those chemicals exceeding the risk-based concentrations will be retained in the
risk assessment.
Comparison of naturally occurring inorganic compounds maximum detected
concentrations to 2 times the average site-specific background concentration.
Screening on-site media for essential nutrients .
For each medium, the selected COPC will be retained and summarized for further risk
evaluation in the baseline risk assessment.
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: 0
Date: April 1997
4.7.1.2 Exposure Assessment and Documentation
Potential current and future land and water uses will be evaluated for the site in order to develop
reasonable maximum exposure (RMB) scenarios for potentially exposed populations. Potentially
exposed populations which may be evaluated for the site include current trespassers, future
residents, and future workers, For each population or receptor identified at the site, an analysis
of potential exposure pathways will be made, This analysis will include an evaluation of:
•
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Chemical sources and releases (leaching of chemicals from soil into groundwater)
Transport media (i.e., groundwater, surface water, air, soils, sediments)
Exposure points (sluice area, creek)
Exposure routes (i.e,, ingestion, inhalation, dennal absorption)
Quantification of potential exposure will be made by estimating potential exposure
concentrations and calculating exposure doses, In most cases, exposure concentrations will be
estimated using analytic data generated during the RI at the site, and the upper 95 % confidence
limit of the mean will be used as an exposure concentration. If the calculated upper 95 %
confidence limit of the mean exceeds the maximum detected value, the maximum detected value
will be used in the exposure calculations,
• If a chemical is not detected in a particular sample, then one-half of the sample
quantitation limit will be used as the value for that sample,
Exposure concentrations, as well as a number of other exposure assumptions, are used as inputs
into exposure close models, These models are used to estimate exposure closes in milligrams
chemical/kilograms body weight/day for each exposure route,
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
4. 7 .1.3 Toxicity Assessment and Documentation
RI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: 0
Date: April 1997
The toxicity assessment discusses the potential for the COPCs identified to cause adverse health
effects in exposed individuals and presents the chemical-specific quantitative dose-response data
for the COPCs.
WESTON will use infonnati011 in EPA's Integrated Risk Infornrntion System (IRIS) (EPA,
1996) and EPA's Health Effects Assessment Summary Tables (HEAST) (EPA, 1995c) to
identify toxicity values, reference doses (Rills) for the evaluation of noncarcinogenic health
effects, and cancer slope factors (CSFs) for the evaluation of carcinogenic effects of the
chemicals of potential concern. In addition, toxicity values for dennal exposures will be derived
based on infonnation in Region IV EPA's risk assessment guidance for Superfund (EPA, 1995a).
If a toxicity value is not available, WESTON will contact EPA for guidance and discussion of
approach to derive these numbers. The toxicity section shall include tables which summarize
the weight of evidence and CSFs for carcinogenic chemicals, and RfDs for noncarcinogenic
chemicals.
The infonnation collected during the toxicity assessment will be fonnatted according to Region
IV guidelines (EPA, 1995a).
4.7.1.4 Risk Characterization
WESTON will integrate data from both the exposure and toxicity assessments to quantify the
current and future health risks associated with the chemicals of potential concern at the site.
This section of the report will contain the following:
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Section: 4
Revision: O
Date: April 1997
Identify the chemicals of concern -chemicals of concern (COCs) are the
chemicals of potential concern (COPCs) that significantly contribute to a pathway
in a use scenario for a receptor that either (a) exceeds a 10-' cumulative site
cancer risk; or (b) exceeds a noncarcinogenic hazard index (ID) of I (EPA,
1995a).
Quantification of potential risks for each identified chemical of concern and for
each exposure route.
Integration of risks across chemicals and exposure routes that affect the same
individual over the same time period.
• Assessment of uncertainty factors involved with risk assessment (this will be a
summary of the uncertainties presented in previous tasks).
4.7.1.5 Carcinogenic Risk
Carcinogenic risk, which is the risk posed to an individual over a lifetime of exposure, will be
calculated for each chemical through each exposure route using the following equation:
Where:
Cancer Risk = LADD x CSF
Cancer Risk = Lifetime carcinogenic risk (expressed as a probability).
LADD = Lifetime average daily dose (averaged over 70 years) (mg/kg-clay).
CSF = Cancer slope factor (mg/kg-dayY1•
The total cancer risk posed by all carcinogens and exposure routes associated with each medium
is the sum of the chemical and route-specific cancer risks. A final total cancer risk will be
detern1ined for each scenario across all appropriate media.
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. lt shall not be released or disclosed, in whole or in part, without the express written permission of EPA.
4.7.1.6 .Noncarcinogenic Risk
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Reasor Chemical Company Site
Section: 4
Revision: 0
Date: April 1997
Noncarcinogenic risks will be evaluated by comparing predicted chemical daily intakes, which
were averaged over the period of exposure, to reference doses (Rills) as illustrated in the
following equation:
HQ= ADD/RID
Where:
HQ=
ADD=
RID=
Hazard quotient.
Average daily dose (averaged over the exposure period) (mg/kg-
day).
Reference dose (mg/kg-day).
The hazard quotients will be summed to detennine the hazard index (HI) for each chemical for
each exposure route and for each exposure scenario (all chemicals and exposure routes
combined). If hazard quotient or hazard index exceeds unity, this indicates a potential risk to
an adverse effect from that chemical(s) through that exposure route(s).
4. 7.1. 7 Risk-Based Remedial Options
Remedial Goal Option (RGOs) will be calculated for the chemicals of concern. This section will
contain a table of media-specific cleanup levels for each COC in each land use scenario. The
list of COCs is generated at the conclusion of the risk characterization section. The table will
identify cleanup levels for 10·•, JO·', and 104 cancer risk levels for each carcinogenic COC. In
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This document was prepared by Roy F, Weston, Jnc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
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AI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: 0
Date: April 1997
addition, \he table will identify cleanup levels for each noncarcinogenic COC at HQ levels of
0,1, I, and 3 (EPA, 1995a), The table will also include MCLs and other applicable ARARs.
The purpose of this table is to provide the risk manager with a range of risk-related media levels
as a basis for developing remediation actions during the feasibility study and proposed plan or
the corrective measures study.
4. 7 .2 Environmental/Ecological Risk Assessment
A report describing potential environmental/ecological risks from exposure to site contaminants
will be submitted, The procedures required to perfonn the ecological risk assessment follow the
general guidance provided by EPA (EPA, 1989b; 1992; 1995b), The general approach used to
estimate potential ecological effects follows that used in the human health assessment, and
includes data evaluation, exposure assessment, toxicity assessment, and risk characterization.
4.7.2.1 Data Evaluation
The evaluation of data as proposed under the human health risk assessment, including the
general process for selection of chemicals of concern, will also be used for the
environmental/ecological assessment; however, because of the different toxicity of some
chemicals to fish and wildlife as compared with human receptors, the chemicals of concern for
the environmental/ecological assessment may differ from those evaluated in human health risk
assessment. Thus, if applicable, a revised list of chemicals of potential concern will be submitted
for the environmental/ecological risk assessment,
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. lt shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
4. 7 .2.2 Exposure Assessment
The objectives of the exposure assessment include the following:
• Identify significant pathways/routes of exposure .
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Section: 4
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• Identifi>:ation of habitats that have received or may receive chemicals from the
site.
• Identification of the organisms, populations, and/or communities that may be
potentially exposed to the contaminants of concern at the site.
• Selectio.n of target species and/or communities .
• Estimati ~n of exposure point concentrations .
• Predictic,n of exposure doses for the selected target species.
The initial step in the eJ:posure assessment will be to identify the habitats on or near the site that
may be affected by site chemicals. Factors that will be considered in this evaluation include the
location of chemical sources, prediction of chemical migration and persistence, local topography,
local land and water uses, and the location of terrestrial and aquatic habitats in relation to
chemical distribution and potential migration at the site. This infonnation serves as the basis for
choosing receptor organisms, or target species, for those habitats. Target species will be chosen
for evaluation in the ecological assessment based on a number of criteria which include:
• Species that are threatened, endangered, or of special concern.
• Species that are valuable for recreational purposes.
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. lt shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: 0
Date: April 1997
• ·, Species that are important to the well-being of either or both of the above groups.
•
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Species that are critical to the structure or function of the ecosystem which they
inhabit.
Species that are sensitive indicators of ecological change .
Species for which reasonable prediction of exposure and consequent risk 1s
possible.
To help identify potential target species at this site, infonnation will be obtained from a site
visit, published reports, and/or from contacts with state and federal resource trustees (Natural
Heritage Database, U.S. Fish and Wildlife Service, state game/fish commissions). There are
some instances where the selection of target species will not be necessary, such as when media-
specific criteria which protect a large percentage of species are available (e.g., water quality
criteria), or when available toxicity data are not sufficient to justify a species level analysis (e.g.,
plants).
An analysis of potential exposure routes/pathways will be made for each of the target species.
All exposure routes of little or no concern based on an analysis of site characteristics will be
eliminated. Focus will be given to those pathways and species considered critical to the
evaluation of ecological risk at the site.
4. 7 .2.3 Toxicity Assessment
The toxicity assessment characterizes the toxicity of the chemicals of potential concern to
ecological receptors. Scientific literature and regulatory guidelines will be reviewed for medium-
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This document was prepared by Roy F. Weston, Inc,, expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: 0
Date: April 1997
specific and species-specific toxicity data. Some of the databases and screening tools reviewed
may include:
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Aquatic Infonnation Retrieval (AQUIRE)
Quantitative Structure Activity Relationships (QSAR) database
Hazardous Substances Database (HSDB)
ENVIROFATE database
Integrated Risk Information System (IRIS)
Registry of Toxic Effects of Chemical Substances (RTECS)
Phytotox database
Region IV Waste Management Division Sediment Screening Values
Region IV Waste Management Division Freshwater Quality Values
4. 7 .2.4 Risk Characterization
In the risk characterization, infom1ation from the exposure and toxicity assessments will be
integrated in order to estimate the potential hazard or risk to the ecological receptors.
4.8 RI REPORT
Following approval of the RI Work Plan, WESTON will begin implementation of the field
investigation. At least two weeks prior to the enactment of field work, WESTON will notify
EPA that field work will commence on a given date. After the Phase I and Phase II field work
efforts have been completed, WESTON will issue a Site Characterization Summary for each
completed phase of work.
The Site Characterization Summary will briefly review the analytical results of investigative
activities to provide EPA and WESTON with a reference for evaluating the development and
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without the express written permission of EPA.
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Reasor Chemical Company Site
Section: 4
Revision: 0
Date: April 1997
screening·of remedial alternatives. Additional infonnation to be included in each summary will
comprise site descriptions, brief discussions of field activities, including sampling activities and
methodologies, brief review of site geologic and hydrogeologic characteristics, and a brief
discussion and visual presentation of contamination in the sampled matrices. Maps of sampling
locations and analytical results will be prepared for each Site Characterization Summary.
Recommendations for the next phase of activities will also be included in the document.
Following completion of all field activities and receipt of all analytical data, WESTON will issue
the Draft RI Report. The draft will be presented to EPA and ESD for review. WESTON will
also use the data collected during the RI field work and presented in the Draft RI Report to
begin preparation of the baseline risk assessment. The fonnat of the draft RI will follow the
suggested RI report fonnat on page 3-30 of the Guidance for Conducting Remedial Investigations
and Feasibility Studies Under CERCLA, Interim Final, October 1988.
Following issuance of the Draft RI Report, there will be a review and comment period by EPA
and NCDEHNR. After receipt and review of the RI comments, WESTON will review and
respond to each comment. An RI comments letter with the response to each comment will be
prepared for EPA. Following issuance of the letter, WESTON will revise the RI Report for
eventual submittal to EPA as the Final RI Report.
4.9 REFERENCES
EPA (U.S. Environmental Protection Agency). 1985. Development of Statistical Distributions
or Ranges of Standard Factors Used in Exposure Assessments. Washington, DC OHEA-E-61.
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'·
RI/FS Work Plan
Reasor Chemical Company Site
Section: 4
Revision: 0
Date: April 1997
EPA (U.S-. Environmental Protection Agency). 1989. Risk Assessment Guidance for Superfund.
Volume I -Human Health Evaluation Manual (Part A). Interim Final. Office of Emergency and
Remedial Response. OSWER Directive 9285-0la.
EPA (U.S. Environmental Protection Agency). 1989a. Ecological Assessment of Hazardous
Waste Sites: A Field and Laboratories Reference.
EPA (U.S. Environmental Protection Agency). 1989b. Risk Assessment Guidance for
Superfund -Volume II, Environmental Evaluation Manual.
EPA (U.S. Environmental Protection Agency). 1991. Summary Report on Issues in Ecological
Risk Assessment.
EPA (U.S. Environmental Protection Agency). 199 la. Risk Assessment Guidance for Superfund,
Volume I -Human Health Evaluation Manual, Supplemental Guidance, "Standard Default
Exposure Factors." Interim Final. OSWER Directive 9285.6-03.
EPA (U.S. Environmental Protection Agency, Region IV). 1991b. "Supplemental Region IV
Risk Assessment Guidance." March 1991.
EPA (U.S. Environmental Protection Agency, Region IV). 1992a. "New Interim Region IV
Guidance." February 1992.
EPA (U.S. Environmental Protection Agency). 1992b. Risk Assessment Guidance for Superfund,
Volume l -Human Health Evaluation Manual {Part B). Development of Risk-Based Preliminary
Remediation Goals. January 1992b.
EPA (U.S. Environmental Protection Agency). 1995a. Supplemental Guidance to RAGS: Region
4 Bulletins, Human Health Risk Assessment. Office of Health Assessment. November l 995.
EPA (U.S. Environmental Protection Agency). 1995b. Supplemental Guidance to RAGS: Region
4 Bulletins, Ecological Risk Assessment. Office of Health Assessment. November 1995.
U.S. Department of Agriculture, Soil Survey. New Hanover County. North Carolina, June 1964.
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
Rl(FS Work Plan
Reasor Chemical Company Site
Section: 5
Revision: 0
Date: April 1997
SECTION 5
FEASIBILITY STUDY WORK PLAN
WESTON will utilize the data collected and analyzed during the RI and Risk Assessment to
conduct the Feasibility Study (FS). The FS will include development and screening of an
appropriate range of waste management options followed by a detailed evaluation of potential
remedial action alternatives. The range of options will include, at a minimum, alternatives in
which treatment is used to reduce the toxicity, mobility, or volume of the waste, but varying in
the types of treatment, the amount treated, and the manner in which long-tenn residuals or
untreated wastes are managed; alternatives that involve containment and treatment components;
alternatives that involve containment with little or no treatment; and a no-action alternative.
5.1 DEVELOPMENT AND SCREENING OF REMEDIAL ACTION ALTERNATIVES
Based on the data collected in the RI, the preliminary remedial response objectives identified
during the RI will be developed more fully and finalized. General response actions, or categories
of remedial action alternatives, will be selected to address each site problem area response
objective. These general response actions will fonn the basis for the technology screening. Any
revisions to the remedial action objectives will be documented in a technical memorandum.
To the extent applicable, the site problem(s), remedial response objectives, clean-up criteria, and
general response actions will be described for individual operable units (e.g., contaminant
source, groundwater contaminant plume).
NOR/K:\ WP\ 04400\ 077\ WPMAT002. WP 5-1 4/97
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
5.1.1 Identification and Screening of Remedial Technologies
RI/FS Work Plan
Reasor Chemical Company Site
Section: 5
Revision: O
Date: April 1997
On the basis of technical guidance documents, general technical literature, and experience with
site remediation, a list of potentially applicable remedial action technologies will be prepared for
each general response action. This list will be prepared from guidance materials, technical
literature, and experience with waste treatment, construction, and site remediation. The
technologies on the list will be screened with regard to practical applicability under conditions
of the site, remedial response objectives, and clean-up criteria. The result will be lists of
specific technologies that have reasonable probability of contributing to the remediation of the
. site.
5.1.2 Development of Alternatives
The technologies resulting from the screenmg will be used to develop remedial action
alternatives, each of which will be developed to be capable of accomplishing the clean-up criteria
for each affected medium. Each alternative will consist of one or more technologies.
Technologies will be combined such that they are compatible and complete in that they appear
reasonably capable of fulfilling the requirements of the corresponding general response action.
Alternatives that reduce the toxicity, concentration, volume, or mobility of the contaminants will
be developed as the situation allows.
As required by the NCP Sections 300.430(e) 3, 4, 5, and 6, a range of alternatives will be
developed in the following categories as appropriate:
NOR/K:\ WP\ 04400\ 077\ WPMAT002. WP 5-2 4/97
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
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RI/FS Work Plan
Reasor Chemical Company Site
Section: 5
Revision: 0
Date: April 1997
An alternative for treatment that would eliminate, or mm11111ze to the extent
feasible, the need for long-tenn management (including monitoring) at the site;
Alternatives that would use treatment as a primary component of an alternative
to address the principal threats at the site;
An alternative that relies on containment, with little or no treatment but is
protective of human health and the environment by preventing potential exposure
and/or by reducing mobility; and
• A "no action" alternative.
5.1.3 Initial Screening of Alternatives
The remedial alternatives resulting from Task 2 will be further screened to ensure that only
alternatives having a reasonable probability of being found acceptable proceed to detailed
evaluation. The following criteria will be considered in the screening in accordance with Section
300.430(e)(7) of the NCP:
• Effectiveness: This criterion focuses on the degree to which an alternative
reduces toxicity, mobility, or volume, through treatment, minimizes residual risks
and affords long-tenn protection, complies with ARARs, minimizes short-tenn
impacts, and how quickly it achieves protection. Alternatives providing
significantly less effectiveness than other, more promising alternatives may be
eliminated. Alternatives that do not provide adequate protection of human health
and the environment shall be eliminated from further consideration.
NOR/ K:\ WP\ 04400\ 077\ WPMAT002. WP 5-3 4/97
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This document was prepared by Roy F. Weston, lnc., expressly for EPA. It shall not be released or disclosed, in whole or in part, without the express written permission of EPA
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RI/FS Work Plan
Reasor Chemical Company Site
Section: 5
Revision: 0
Date: April 1997
Implementability: This criterion focuses on the technical feasibility and
availability of the technologies each alternative would employ and the
administrative feasibility of implementing the alternative. Alternatives that are
technically or administratively infeasible or that would require equipment,
specialists, or facilities that are not available within a reasonable period of time
may be eliminated from further consideration.
Cost: The costs of constmction and any long-tenn costs to operate and maintain
the alternatives shall be considered. Costs that are grossly excessive compared
to the overall effectiveness of alternatives may be considered as one of several
factors used to eli111inate alternatives. Alternatives providing effectiveness and
implementability si111ilar to that of another alternative by employing a similar
111ethod of treat111ent or engineering control, but at greater cost, may be
eliminated.
5.1.4 Initial Screening Technical Memorandum
At the completion of the initial screening, WESTON will prepare and sub111it a technical
memorandum summarizing the work perfor111ed and the resu Its of each task above. The
me111orandu111 will include an array summary as well. Co111ments from EPA regarding the
development of alternatives will be reported in the detailed analysis.
NOR/K:\ WP\ 04400\ 077\ WPMA T002. WP 5-4 4/97
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 5
Revision: O
Date: April 1997
5.2 TASK 5 -DETAILED EVALUATION OF THE ALTERNATIVES
The remedial alternatives resulting fro111 the screening will be further developed and undergo
detailed evaluation for technical, environmental and cost considerations. A description of each
alternative will be prepared, consisting at a minimum of the following:
• Description of the alternative and the individual technologies.
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Special engineering considerations required to implement the alternatives (e.g.,
pilot treatment facility, additional studies needed to proceed with final remedial
design);
Environmental impacts of proposed methods and costs for mitigating any adverse
effects;
Operation, maintenance, and monitoring requirements of the remedy;
Off-site disposal needs and transportation plans;
Temporary storage requirements;
Safety requirements for remedial action implementation (including on-site and off-
site health and safety considerations);
NOA/K: \ WP\ 04400\ 077\ WPMAT002. WP 5-5 4/97
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shalt not be released or disclosed, in whole or in part,
without the express written permission of EPA.
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RI/FS Work Plan
Reasor Chemical Company Site
Section: 5
Revision: 0
Date: April 1997
A description of how the alternative could be phased into individual operable
units, if applicable. The description will include a discussion of how various
operable units of the total remedy could be implemented individually or m
groups, resulting in a significant improvement to the environment, savings m
costs, or simplified logistics.
A description of each alternative could be segmented to allow staged
implementation of segments over time, if applicable.
A review of off-site waste treatment, storage, and disposal facilities that are part
of the alternative to ensure that the facilities are in compliance with applicable
RCRA requirements, both current and proposed.
Each alternative will undergo an environmental assessment. In accordance with the project SOW,
the environmental assessment will include, at a minimum, an evaluation of each alternative's
environmental effects, an analysis of measures to mitigate adverse effects, physical or legal
constraints, and compliance with CERCLA or to her regulatory requirements. Each alternative
will be assessed in tenns of the extent to which it mitigates damage to or protects public health,
welfare, and the environment in comparison to the other alternatives. The specific considerations
to be used in the assessment will be referenced to standards and criteria developed under federal
or state environmental and health statutes.
Each alternative will also undergo a detailed cost analysis. Estimates of initial costs and
operating and maintenance costs over time will be prepared and the present-worth equivalent cost
NOA/K:\ WP\ 04400\ 077 \ WPMAT002.WP 5-6 4/97
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA
·,.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 5
Revision: 0
Date: April 1997
will be c6mputed using a time-value-of-money rate (discount or interest rate) prevailing at the
time or otherwise specified by EPA.
The detailed evaluation of the alternatives will confonn to the requirements of the National
Contingency Plan, Section 300.430(e)(9), and will consist of a technical, environmental, and cost
evaluation. The detailed evaluation will follow the process as specified in the "Guidance for
Conducting Rl/FS under CERCLA" (USEPA 1988). Nine evaluation criteria are stipulated that
are to be applied in the evaluation of each alternative.
Table 5-1 presents the nine evaluation criteria and the factors considered for each evaluation
criterion. A brief description of each criterion follows.
Overall Protection of Human Health and the Environment
This criterion provides a final check to assess whether each alternative meets the requirement
that it is protective of human health and the environment. The overall assessment of protection
is based on a composite of factors assessed under the evaluation criteria, especially long-tenn
effectiveness and pennanence, short-tenn effectiveness, and compliance with ARARs.
Compliance with ARARs
This criterion is used to detennine how and to what extent each alternative complies with
applicable or relevant and appropriate federal and state requirements, as defined in CERCLA
Section 12 l.
NOR/ K:\ WP\ 04400\ 077\ WPMAT002. WP 5-7 4/97
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This document was prepared by Roy F. Weston, Inc., ·expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
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Table 5-1
Detailed Evaluation Criteria
AI/FS Work Plan
Reasor Chemical Company Site
Section: 5
Revision: 0
Date: April 1997
OVERALL PROTECTION OF HUMAN HEALTH AND ENVIRONMENT
COMPLIANCE WITH ARARS
Compliance with chemical-specific ARARs
Compliance with action-specific ARARs
Compliance with location-specific ARARs
Compliance with appropriate criteria, advisories, and guidance
LONG-TERM EFFECTIVENESS
Magnitude of risk remaining at the site after the response objectives have been met
Adequacy controls
Reliability of controls
REDUCTION OF TOXICITY MOBILITY OR VOLUME
Treatment process of remedy
Amount of hazardous material destroyed or treated
Reduction in toxicity, mobility, or volume of the contaminants
Irreversibility of the treatment
Type and quantity of treatment residuals
SHORT-TERM EFFECTIVENESS
Protection of community during remedial actions
Protection of workers during remedial actions
Time until remedial response objectives are achieved
Environmental impacts
NOR/K:\ WP\ 04400\ 077\ WPMAT002. WP 5-8 4/97
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. Jt shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
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Table 5-1 (Continued)
Detailed Evaluation Criteria
IMPLEMENTABILITY
Ability to construct technology
Reliability of technology
RI/FS Work Plan
Reasor Chemical Company Site
Section: 5
Revision: 0
Date: April 1997
Ease of undertaking additional remedial action, if necessary
Monitoring considerations
Coordination with•other agencies
Availability of treatment, storage capacity, and disposal services
Availability of necessary equipment and specialists
Availability of prospective technologies
Capital costs
Annual operating and maintenance costs
Present worth analysis
Sensitivity analysis
STATE ACCEPTANCE
• COMMUNITY ACCEPTANCE
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part, without the express written permission of EPA
Long-T;irn Effectiveness
RI/FS Work Plan
Reasor Chemical Company Site
Section: 5
Revision: 0
Date: April 1997
This criterion addresses the results of a remedial action in tenns of the risk remaining at the site
after the response objectives have been met. The primary focus on this evaluation is to detennine
the extent and effectiveness of the controls that may be required to manage the risk posed by
treatment residuals and/or untreated wastes. The factors to be evaluated include the magnitude
of remaining risk (measured by numerical standards, such as cancer risk levels), and the
adequacy, suitability, and long-tenn reliability of management controls for providing continued
protection from residuals (i.e., assessment of potential failure of the technical components). The
long-tenn effectiveness factors cited in .SARA, Section 121 (b) (I) will be addressed.
Reduction of Toxicity, Mobility, and Volume
This criterion addresses the statutory preference for selecting remedial actions that employ
treatment technologies that pem1anently and significantly reduce toxicity, mobility or volume of
the contaminants. The factors to be evaluated include the treatment process employed, the
amount of hazardous material destroyed or treated, the degree of reduction expected in toxicity,
mobility and volume, and the type and quantity of treatment residuals.
Short-Tenn Effectiveness
This criterion addresses the effects of the alternative during the constmction and implementation
phase until the remedial actions have been completed and the selected level of protection has
been achieved. Each alternative is evaluated with respect to its effects on the community and on-
NOR/K; \ WP\ 04400\ 077\ WPMA T002. WP 5-10 4/97
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This document was prepared by Roy F, Weston, Inc., expressly for EPA It shall not be released or disclosed, in whole or in part, without the express written permission of EPA
RI/FS Work Plan
Reasor Chemical Company Site
Section: 5
Revision: 0
Date: April 1997
site workers during the remedial action, environmental impacts resulting from implementation,
and the amount of time until protection is achieved.
Implementability
This criterion addresses the technical and administrative feasibility of implementing an
alternative and the availability of various services and materials required during its
implementation. Technical feasibility considers construction and operational difficulties,
reliability, ease of undertaking additional remedial action (if required), and the ability to monitor
its effectiveness. Administrative feasibility considers activities needed to coordinate with other
agencies (e.g., state and local) in regards to obtaining pem1its or approvals for implementing
remedial actions.
This criterion addresses the capital costs, annual operation and maintenance costs, and present-
worth analysis.
Capital costs consist of direct (construction) and indirect (nonconstruction and overhead) costs.
Direct costs include expenditures for the equipment, labor, and material necessary to perfonn
remedial actions. Indirect costs include expenditures for engineering, financial, and other
services that are not part of actual installation of remedial alternatives. Annual operation and
maintenance costs are post-construction costs necessary to ensure the continued effectiveness of
a remedial action. These costs will be estimated to provide an accuracy of +50 percent to -30
percent.
NOR/K: \ WP\ 04400\ 077\ WPMAT002. WP 5-11 4/97
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part, without the express written permission of EPA.
Rl(FS Work Plan
Reasor Chemical Company Site
Section: 5
Revision: 0
Date: April 1997
A present-worth analysis is used to evaluate expenditures that occur over different time periods
by discounting all future costs to a common base year, usually the current year. This allows the
cost of remedial action alternatives to be compared on the basis of a single figure representing
the amount of money that would be sufficient to cover all costs associated with the remedial
action over its planned life. As suggested in the EPA's.guidance (1988), a discount rate of five
percent will be considered unless the market values indicate otherwise during the perfonnance
of the FS.
State Acceptance
This criterion evaluates the technical and administrative issues and concerns the State may have
regarding each of the alternatives. The factors to be evaluated include those features of
alternatives that the State supports, reservations of the State, and opposition of the State.
Community Acceptance
This criterion incorporates public concerns into the evaluation of the remedial alternatives.
After each of the remedial alternatives has been assessed against the nine criteria, a comparative
analysis will be perfonned. This analysis will compare all the remedial alternatives against each
other for each of the nine evaluation criteria.
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA
·,_
5.3 Feasibility Study Report
RI/FS Work Plan
Reasor Chemical Company Site
Section: 5
Revision: 0
Date: April 1997
Upon completion of the detailed analysis, WESTON will prepare a Draft FS Report for review
and comment. This response will be prepared in general accordance with the suggested fonnat
outlined in the EPA Guidance document "Guidance for Conducting Remedial Investigations and
Feasibility Studies Under CERCLA," October 1988. This report will be used by EPA to
document the development and analysis of the remedial action alternatives and will be the basis
for remedy selection. WESTON will address any comments on the Draft Report and prepare a
final FS Report.
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
6.1 ORGANIZATION
SECTION 6
PROJECT MANAGEMENT
RI/FS Work Plan
Reasor Chemical Company Site
Section: 6
Revision: 0
Date: April 1997
The organization of the project responsibilities described below is also presented in Figure 6-1,
the Project Responsibilities Chart.
6.1.1 Work Assignment
Mark A. Taylor, P.G,, will be responsible for planning, coordinating, integrating, monitoring,
and appraising (i.e., managing) all project activities. These will include the activities of any
subcontractors to WESTON (e.g., drillers). Mr. Taylor also will be responsible for the
identification and ultimate resolution of technical problems and the technical coordination of the
field efforts, hydrogeological evaluation, and contamination assessment. Field audits are also
the responsibility of the WESTON Project Manager.
6.1.2 Quality Assurance Coordinator
William R Doyle, as the ARCS Program Manager for WESTON, will be responsible for the
accuracy and precision of field-generated sample data and infonnation, He will have the
authority to impose proper procedures or to halt an operation. His duties include QA review
and approval of sampling procedures, field documentation, and all technical data,
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- - --·-·----·--.,. -·-- - ---
Contract Administration
Chandra McNeil-Norton
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CLP Laboratory Subcontractors Coordinator
Direct-Push
Drilling/Well
Installation
CLP
Laboratory Surveying
NOR/k:\WP\04400\077\FIG _ 2-1. PPT
EPA RPM
Giezelle Bennett
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Work Assignment Mgr. Region Program Mgr.
Mark A Taylor William R. Doyle
Health & Safety
William R. Doyle
Site Manager Risk Assessment Remedial Invest Feasibility Study
David D. Nelson Leader Leader Leader
Monica Caravati Mark Taylor Ralph McKeen
Geologist Geologists Toxicologists
Engineers Hydrologists Modelers
Technicians Chemists Regulatory
Civil Engineers Specialists
Project Organization
Figure 6-1
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This document was prepared by Roy F. Weston, Inc., expressly for EPA It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA
6.1.3 P~oject Field Team Manager
RI/FS Work Plan
Reasor Chemical Company Site
Section: 6
Revision: 0
Date: April 1997
David Nelson, P.G., as the Project Field Team Manager, will be responsible for oversight of
operations in the field and the proper execution of all field activities. He will be responsible for
ensuring that all procedures for the field activities related to the RI are executed in the proper
manner and are documented.
6.1.4 Field Safety Coordinator
The Field Safety Coordinator will be responsible for: (I) having an up-to-date Health and Safety
Plan (HASP) in place; (2) overseeing that subcontractors adhere to the HASP; (3) training of
all personnel involved in health and safety procedures; (4) maintaining control in emergencies;
(5) keeping a logbook of activities; and (6) supervising the decontamination area and work site
setup.
6.1.5 Laboratory Staffing
All analytical work except for residual confinnatory sampling and geochemical and geotechnical
sampling will be perfonned by Contract L1boratory Program (CLP) and coordinated by the EPA
Region IV Contract Laboratory Analytical Services Support (CLASS) Contractor.
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This document was prepared by Roy F. Weston, lnc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
6.1.6 E°i•A Personnel
RI/FS Work Plan
Reasor Chemical Company Site
Section: 6
Revision: 0
Date: April 1997
Ms. Giezelle Bennett is the EPA Region IV Remedial Project Manager who will be responsible
for Agency coordination and for oversight of the project. Ms. Diane Barrett will be responsible
for coordination of all community relations activities.
6.2 PROJECT SCHEDULE
The anticipated schedule for the project 1s shown on Figure 6-2. Work on subcontractor
solicitation (ED #5) will begin upon receipt of the Work Plan approval. At that time, the
schedule will be revised, if necessary, reflecting the actual start date.
The duration of the Baseline Risk Assessment and Feasibility Study begins when data is available
to start initial evaluations and ends with the submission of the Final RI and FS reports. These
tasks will be perfonned on an intennittent basis as new data is received throughout the entire
duration shown on this schedule.
6.3 DELIVERABLES SCHEDULE
The following table lists the deliverables outlined in the statement of work and the anticipated
WESTON review/preparation period prior to submission to the EPA.
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ID Task Name
EPA WP Approval
2 Subcontractor Procurement
3 Mobilize to Field
4 Phase I RI Sampling
5 Sample Analysis (CLP)
6 Site Characterization I
7 Baseline Risk Assessment
8 Human Health RA
9 Ecological RA
10 Phase II -Install Monitor Wells
11 CLP Analysis
12 Draft RI Report/EPA Review
13 Final RI Report
14 Feasibility Study
15 ID/Screen Technologies
16 Develop Alternatives
17 Screen Alternatives
18 Evaluation of Alternatives
19 Draft FS Report/EPA Revie
20 Final FS Report
21 EPA ROD
Project: Reasor Chemical Company
Date: 4/17/97
Task
Progress
Duration
1d
30d
1d
30d
55d
7d
104d
104d
90d
15d
45d
30d
15d
130d
25d
15d
25d
20d
30d
15d
1d
Start
4/30/97
5/1/97
6/11/97
6/12/97
7/24/97
10/9/97
10/20/97
10/20/97
10/24/97
10/17/97
11n197
1/9/98
2/20/98
10/6/97
10/6/97
11/10/97
12/1/97
1/5/98
2/2/98
3/16/98
6/25/98
Finish
4/30/97
6/11/97
6/11/97
7/23/97
10/8/97
10/17/97
3/12/98
3/12/98
2/26/98
11/6/97
1/8/98
2/19/98
3/12/98
4/3/98
11/7/97
11/28/97
1/2/98
1/30/98
3/13/98
4/3/98
6/25/98
Milestone
Summary
Jan
Qtr 2, 1997
Feb
♦ •
Mar Apr
REASOR CHEMICAL COMPANY
RI/FS SCHEDULE
WORK ASSIGNMENT 77-4Rl24
Qtr 3, 1997
May Jun Jul
Rolled Up Task
$ Rolled Up Milestone 0
Page 1
Qtr 4, 1997 Qtr 1, 1998 Qtr 2, 1998 Qtr 3, 1998
Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun
♦
Rolled Up Progress
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. 1t shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
' Deliverable
Draft Work Plan/FSAP/QAPP
Final Work Plan/FSAP/QAPP
Health and Safety Plan
Monthly Progress Reports
Site Characterization Summary (Phase I)
Site Characterization Summary (Phase II)
Remedial Action Objective Technical
Memorandum (FS)
DQO/PRG Technical Memorandum (RA)
COC Technical Memorandum (RA)
Draft RI Report
Final RI Report
Technology Screening Technical Memorandum
Initial Screening of Remedial Alternatives
Technical Memorandum (FS)
Draft FS Report
Final FS Report
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Ri/FS Work Plan
Reasor Chemical Company Site
Section: 6
Revision: 0
Date: April 1997
Schedule
Submittal 60 days after receipt of work assignment.
Submittal 20 days after receipt of EPA comments.
Submittal 10 days prior to site visit.
20th of each month.
Submittal 7 days after receipt of CLP data.
Submittal 7 days after receipt of CLP data.
Submittal concurrent with Site Characterization
Summary.
Submittal 14 days after approval of RI/FS Work Plan.
Submittal 20 days after receipt of all CLP data,
Submittal 25 days after EPA approval of Site
Characterization Summary.
Submittal 20 days after receipt of all CLP data.
Submittal 15 days after EPA approval of technology
screening.
Submittal 30 days after EPA approval of remedial
alternatives screening.
Submittal 15 days after receipt of EPA comments.
6-6 4/97
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. lt shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
SECTION 7
PROJECT MEETINGS
RI/FS Work Plan
Reasor Chemical Company Site
Section: 7
Revision: 0
Date: April 1997
WESTON will attend and participate in meetings with EPA, PRPs, federal, state, and local
officials as specified by the RPM. We have assumed that six (6) project meetings will be
attended throughout the project for cost estimating purposes. Five of these meetings are assumed
to be held at the U.S. EPA Region IV office in Atlanta, Georgia. The sixth meeting was
assumed to be for a public meeting in Castle Hayne, North Carolina. WESTON will maintain
records of these meetings and prepare a summary report of the meetings to include participants,
key issues discussed, decisions reached, and action items.
NOA/K;\ WP\ 04400\ 077\ WP MAT002.WP 7-1 4/97
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This document was prepared by Roy F. Weston, Inc., expressly for EPA. It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
SECTION 8
PROGRESS REPORTS
RI/FS Work Plan
Reasor Chemical Company Site
Section: 8
Revision: 0
Date: April 1997
WESTON will prepare monthly status reports describing the financial and technical progress of
the report. The monthly status report will include, at a minimum, the following items:
I. Identification of site and activity.
2. Status of activities and work completed during the month.
3. Percentage of the project work completed.
4. Difficulties encountered and corresponding actions taken 111 an attempt to rectify
problems.
5. Activities planned for the following month.
6. Expenditures, including fee and direct labor hours expended for the month. The financial
report will include a breakdown of hours expended for each task. Individual employee
names charging to the project will be included in the invoice which coincides with the
same time frame as the monthly status report. This invoice is submitted to the EPA
contracting office.
7. Cumulative expenditures, including fee, cumulative direct hours expended to date, and
percent expended of the total obligated dollar and level of effort (LOE) amount.
NOR/K:\ WP\ 04400\ 077 \ WPMAT002. WP 8-1 4/97
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This document was prepared by Roy F. Weston, Inc., expressly for EPA It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
8.
RI/FS Work Plan
Reasor Chemical Company Site
Section: 8
Revision: 0
Date: April 1997
Projection of expenditures leading to project completion with an explanation of any
significant variation from the project budget.
NOR/K; \ WP\ 04400\ 077\ WPMA T002. WP 8-2 4/97
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This document was prepared by Roy F. Weston, Inc., expressly for EPA It shall not be released or disclosed, in whole or in part,
without the express written permission of EPA.
APPENDIX A
RI/FS Work Plan
Reasor Chemical Company Site
Section: 8
Revision: 0
Date: April 1997
TARGET COMPOUND LIST (TCL) AND TARGET ANALYTE LIST (TAL)
PARAMETERS AND THEIR QUANTITATION LIMITS
NOA/K:\ WP\ 04400\ 077\ WPMA T002.WP 4/97
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APPENDlX A
TARGET COMPOUND LIST (TCL) VOLATILE COMPOUNDS
AND THEIR QUANTITA TION LIMITS
Drinking Water/
Groundwater Water
Compound (µz/1) (µz/1)
Cl1loro1netliane I 10
Bromomctllanc I 10
Vinyl chloride I JO
Chloroethane I Ill
Methylene chloride 2 10
Acetone 5 10
Carbon disulfide I JO
I, 1-Dichloroethcnc I 10
I, 1-Dichloroethanc I 10
1.2-Dichloroethene (total) NA 10
cis-1,2-Dichloroethene I NA
trans-1,2-Dichloroethene I NA
Chloroform I JO
1,2-Dichlorocthane I 10
2-Butanonc 5 10
Bromochloromcthanc I NA
I, I, I-Trichloroethane I 10
Carbon tetrachloride I 10
Bromodichloro1netl1ane I Ill
1.2-Dichloropropanc I 10
cis-1,3-Dichloropropene I 10
Trichloroethene I 10
Dibromochloromcthanc I 10
I, 1.2-Trichloroethanc I 10
Benzene I 10
trans-1.3-Dichloropropcnc I JO
Bromoform I 10
4-Mcthyl-2-pen ta none 5 10
2-Hcxanonc 5 JO
Tetrachloroethenc I 10
1,2-Dibromomcthanc I NA
Toluene I Ill
I, 1,2,2-Tetrachloroethane I 10
Chlorobcnzcnc I Ill
NOR/K:IWP\044001077\APP-A.DOC
Soil
(µzlk)D
10
10
10
10
10
10
10
10
10
10
NA
NA
10
10
10
NA
10
10
10
10
10
10
10
10
10
10
10
10
10
10
NA
10
10
10
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APPENDIX A (Continued)
TARGET COMPOUND LIST (TCL) VOLATILE COMPOUNDS
AND THEIR QUANTITATION LIMITS (Continued)
Drinking Water/
Groundwater Water
Compou.nd (µi.:/1) (µi.:/1)
Ethylbenzenc I 10
Styrene I 10
Xylcncs (total) I JO
1,2-Dibromo-3-chloropropanc I NA
NOR/K:IWP\04400\0TflAPP.A.OQC
Soil
(µg/k~)
JO
10
10
NA
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APPENDIX A (Continued)
TARGET COMPOUND LIST (TCL) SEMIVOLATILE COMPOUNDS
AND THEIR QUANTITATION LIMITS
Drinking \Yater/
Groundwater Water
Com1>ound (µ,:/1) (µ,:/1)
Phenol 5 10
bis(2-Chlorocthyl )ctl1cr 5 10
2-Chlorophenol 5 10
1,3-Dichlorobcnzene I* 10
1,4-Dichlorobenzene I* IO
1,2-Dichlorobenzenc I* 10
2-Methylphenol 5 10
2,2 '-ox-ybis( 1-Chloropropane) 5 10
4-Methylphcnol 5 10
N-Nitroso-di-n-propylamine 5 10
Hcxachloroctlmnc 5 10
Nitrobenzene 5 10
lsophorone 5 10
2-Nitrophenol 5 10
2,4-Dimethylphenol 5 10
bis(2-Chloroethoxy)methanc 5 10
2,4-Dichlorophcnol 5 IO
l .2.4-Tric11lorobc11zcnc I* 10
Naphthalene 5 10
4-Chloroanilinc 5 10
Hcxachlorobntadicnc 5 IO
4-Chloro-3-mcthylphenol 5 I 0
2-Methylnaphthalcne 5 I 0
Hcxachlorocyclopcntadicnc 5 10
2,4,6-Trichlorophcnol 5 10
2,4,5-Trichlorophcnol 20 25
2-Chloronaphthalcnc 5 10
2-Nitroanilinc 20 25
Dimcthylphthalatc 5 10
Accnaphtl1ylcnc 5 10
2.6-Dinitrotolucnc 5 I 0
3-Nitroanilinc 20 25
Accnaphthcnc 5 10
2,4-Dinitrophcnol 5 25
NOR/K:IWP\04400\077\APP-A.DOC
Soil
(µg/kg)
330
330
330
330
330
330
330
330
330
330
330
330
330
330
330
330
330
330
330
330
330
330
330
330
3 30
80()
330
800
330
330
330
800
330
800
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APPENDIX A (Continued)
TARGET COMPOUND LIST (TCL) SEMIVOLATILE COMPOUNDS
AND THEIR QUANTITATION LIMITS (Continncd)
Drinking Water/
Groundwater Water
Compound (Jig/I) (µg/1)
4-Nitrophenol 5 25
Dibcnzofur:ln 5 10
2,4-Dinitrotoluenc 5. 10
Dicthylphthalate 5 10
4-Chlorophenyl phenyl ether 5 10
Fluorcnc 5 10
4-Nitroanilinc 20 25
4.6-Dinitro-2-methylphenol 21) 25
N-nitrosodiphcnyla111inc 5 10
4-Bromophcnyl phenyl ether 5 10
Hexachlorobenzene 5 10
Pcntachlorophcnol 20 25
Phcnantl1rene 5 10
Anthraccnc 5 10
Carbazolc NA 10
Di-n-butylphthalatc 5 10
Fluoranthcne 5 I 0
Pyrenc 5 10
Buty lbenzy I phi ha I a le 5 I 0
3,3 '-Dichlorobenzidine 5 l ll
Bcnzo(a)anthraccnc 5 10
Chryscne 5 10
bis(2-Ethylhcxyl)phthalate 5 Ill
Di-n-octylphthalate 5 10
Bcnzo(b )Ouoranthcnc 5 I 0
Bcnzo(k)Ouoranthcnc 5 10
Bcnzo(a)pyrcne 5 10
I ndeno( 1,2,3-cd)pyrcnc 5 I 0
Dibc11z(a.l1)a11tl1racc11c 5 10
Bcnzo(g.h.i)pcrylenc 5 10
* Compound analyzed as a volatile in the low concentration method.
NOR/K:IWP\04400\077\APP-A.DOC
Soil
(µg/k~)
800
330
330
330
330
330
800
800
330
330
330
800
330
330
330
330
330
330
330
330
330
330
330
330
330
:no
330
330
330
330
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APPENDIX A (Continued)
TARGET COMPOUND LIST (TCL) PESTICIDES/AROCLORS (PCBs)
AND THEIR QUANTITATION LIMITS
Drinldn:,.! Water/
Groundwater Water
Compound (µg/1) (µg/1)
alpha-BHC 0.01 0.05
beta-BHC \ 0.0 I 0.05
delta-BHC 0.01 0.05
gamma-BHC (Lindane) 0.01 0.05
Heptachlor 0.01 0.05
Aldrin 0.01 0.05
Heptachlor epoxide 0.01 0.05
Endosulfan I 0.01 0.05
Dicldrin 0.02 0.10
4,4 '-DOE 0.02 0. I 0
Endrin 0.02 0.10
Endosulfan II 0.02 0.10
4,4'-DDD 0.02 0.10
Endosulfan sulfate 0.02 O. Ill
4,4'-DDT 0.02 0.10
Methoxychlor ll.10 0.50
Endrin ketone 0.02 0.10
Endrin aldehyde 0.02 0.10
alpha-Chlordane 0.01 0.05
gamma-Chlorda11e 0.01 0.05
Toxaphene 1.0 5.0
Aroclor-1016 0.20 1.0
Aroclor-1221 0.40 2.0
Aroclor-1232 IJ.20 1.0
Aroclor-1242 0.20 1.0
Aroclor-1248 0.20 1.0
Aroclor-1254 0.20 1.0
Aroclor-1260 0.20 1.0
NOR/K:\WP\044001077\APP-A.DOC
Soil
(µg/kg)
1.7
1.7
1.7
I. 7
1.7
1.7
1.7
1.7
3.3
3.3
3.3
3.3
3.3
3.3
J .• ,
17.0
3.3
3.3
1.7
1.7
170.0
33.0
67.0
33.0
33.0
33.0
33.0
33 .0
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APPENDTX A (Continued)
TARGET ANALYTE LIST (TAL) METALS/CYANIDE
AND THEIR DETECTION LIMITS*
Water
Analytes (µg/1)
Al11minu1n 200
Antimony 60
Arsenic IO
Barium 200
Beryllium 5
Cadmium 5
Calcium 5000
Chromium 10
Cobalt so
Copper 25
Iron 100
Lead 3
Magnesium 5000
Manganese 15
Mercury 0.2
Nickel 40
Potassium 5000
Selenium 5
Silver I 0
Sodium 5000
Thallium 10
Vanadium 50
Zincc 20
Cyanide 10
TAL Metal detection limits arc expressed as instmment detection limits obtained in pure water. Detection limits
for soils arc adjusted for the amount of sample ,urnlyzcd and percent moisture.
NOR/K:IWP\04400\077\APP-A.DOC