WQ0001492_Groundwater Corrective Action Plan_19990528

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OxyChem° CASTLE HAYNE PLANT
CLOSED LAGOON AND QUARRY 1, SECTIONS 1 AND 2
OCCIDENTAL CHEMICAL CORPORATION
CASTLE HAYNE. NEW HANOVER COUNTY. NORTH CAROLINA
FOR GROUNDWATER REMEDIATION BY
NATURAL ATTENUATION UNDER THE PROVISIONS
OF 15A NCAC 2L.0106(I)
May 28, 1999
CRA FILE: 6448-00 (001)
Prepared Bli
CRA Services
CRA Engineering, Inc.
4205-C Stuart Andrew Blvd
Charlotte, NC 28217
[phone] Fax [phone]
Worldwide Engineering, Environmental, and Construction Services

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CRA SERVICES
425 Cheney Highway
Titusville, FL 32780
[phone] -fax[phone]
To: Occidental Chemical Corporation
5408 Holly Shelter Road
Castle Hayne, North Carolina 28429
[phone]
WE ARE SENDING YOU
❑ Reports
❑ Copy of Letter
LETTER OF TRANSMITTAL 8
DATE JOB NO
June 15, 1999 6448-30
ATTENTION:
Robert W. Hollinger, Environmental Superintendent
RE:
Errata Sheets for Groundwater Corrective Action Plan (L-
EAP)
® Attached ❑ Under separate cover via
❑ Prints ❑ Plans ❑ Samples
❑ Change order ❑
❑ Specifications
following items:
COPIES
DATE
NO
DESCRIPTION
8
Errata Sheets to be substitutedfinserted into final document
THESE ARE TRANSMITTED as checked below:
❑ For Approval
® Foryouruse
❑ As requested
❑ For review and comment
❑ FOR BIDS DUE
REMARKS:
❑ Approved as submitted
❑ Approved as noted
❑ Returned for corrections
19
❑ Resubmit
copies for approval
❑ Submit
copies for distribution
❑ Return
corrected prints
❑ PRINTS RETURNED AFTER LOAN TO US
Per our telephone conversation, the attached errata sheets include edits to the final document
previously submitted. Please replace the text pages in each copy of the document. Since the appendix
pages are not consecutively numbered, we simply reproduced the entire appendicies H, I, and J for your
convenience; replace these appendices in their entirety.
COPY Bob Adams SIGNED:
TO: Don McLeod, Charles Lavender
James Vd4J(3yman, PE, PG, CPG
Vice President
If enclosures are not as noted, kindly notify us at once.

CRA SERVICES
A 425 Cheney Highway
Titusville, FL 32780
[phone] fax[phone]
To: Occidental Chemical Corporation
5408 Holly Shelter Road
Castle Hayne, North Carolina 28429
[phone]
WE ARE SENDING YOU
® Reports
❑ Copy of Letter
LETTER OF TRANSMITTAL
JOB NO
June 1. 1999
Groundwater Corrective Action Plan (L-CAP)
® Attached ❑ Under separate covervia the following items:
❑ Prints ❑ Plans ❑ Samples ❑ Specifications
❑ Change order ❑
COPIES
DATE
NO
DESCRIPTION
8
05/28/99
CORRECTIVE ACTION PLAN, OxyChem Castle Hayne Plant, Closed Lagoon and
Quarry 1, Sections 1 and 2, Occidental Chemical Corporation, Castle Hayne, New
Hanover County, North Carolina, For Groundwater Remediation by Natural Attenuation
Under the Provisions of 15A NCAC 2L.0106(I)
1
06/04/99
Letter of Transmittal (with receipt copy) for submission of CAP to DENR
THESE ARE TRANSMITTED as checked below:
❑ For Approval
® For your use
❑ As requested
❑ For review and comment
❑ FOR BIDS DUE
REMARKS:
❑ Approved as submitted
❑ Approved as noted
❑ Returned for corrections
COPY Don Mcleod
TO: Bob Adams, Charles Lavender
❑ Resubmit
copies for approval
❑ Submit
copies for distribution
❑ Return
corrected prints
19 ❑ PRINTS RETURNED AFTER LOAN TO US
SIGNED:
James W. Hayman, PE, PG, CPG
Vice President
If enclosures are not as noted, kindly notify us at once.

C__
CORRECTIVE ACTION PLAN
OxyChem° CASTLE HAYNE PLANT
CLOSED LAGOON AND QUARRY 1, SECTIONS 1 AND 2
OCCIDENTAL CHEMICAL CORPORATION
CASTLE HAYNE, NEW HANOVER COUNTY, NORTH CAROLINA
FOR GROUNDWATER REMEDIATION BY Q�N.c.��
NATURAL ATTENUATION UNDER THE PROVISIONS �Q04ogEss1ea
OF 15A NCAC 2L.0106(I) e a SEAT.
°t 17956
May 28, 1999
CRA FILE: 6448-00 (001)
Jdmes W. Hayman, PE, PG, CPG
NC Licensed Professional Engineer No. 17956
NC Licensed Professional Geologist No. 1471
CRA Services
CRA Engineering, Inc.
4205-C Stuart Andrew Blvd
Charlotte, NC 28217
[phone] Fax [phone]

EXECUTIVE SUMMARY
1
Occidental Chemical Corporation (OxyChem) submits this
Corrective Action Plan (CAP) under the provisions of Title 15A, North Carolina
Administrative Code (NCAC), Subchapter 2L, Section 0106(I) {15A NCAC
2L.0106(I)) for the remediation of groundwater through natural attenuation to the
standards set forth in 15A NCAC 2L.0202(g) or the established background
standards for the OxyChem plant (Facility) at Castle Hayne, New Hanover
County, North Carolina. Concentrations of iron (Fe), chlorides, and total
dissolved solids (TDS) and values of acidity/alkalinity (pH), collectively the
constituents of concern (COCs), in the vicinity of the closed former sludge
lagoon and outside the Compliance Boundary of Quarry Sections 1 and 2
exceed background or groundwater standards. The exceedances are the result
of the historical operation of the closed former sludge lagoon and Quarry
Section 1, which have operated under non -discharge permits issued by the
North Carolina Department of Environment and Natural Resources (DENR) prior
to December 30, 1983; therefore, they are not "permitted activities" as defined in
15A NCAC 2L.0106(e), and remediation under 15A NCAC 2L.0106(I) is
permissible.
This "I" -CAP and the previously submitted "c"-CAP {15A NCAC
2L.0106(c)) approved by DENR on April 20, 1998, for continued active
remediation of dissolved chromium in the groundwater beneath the plant
process area, replace Special Order by Consent (SOC) GW#93-01. Ground-
water remediation has been conducted continuously at the plant since 1975.
OxyChem has instituted operational changes to effect source
control by maintaining COC concentrations in the quarry water which will not
create exceedances at the Compliance Boundary.
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The combined discharge from the Facility of groundwater
l' containing COCs and the NPDES-permitted outfall creates no measurable effect
on water quality in the Northeast Cape Fear River. Chloride concentrations, a
COC of high concentration in the discharge, are not statistically different
upstream and downstream of the Facility. The river is not, therefore, a transport
mechanism for the COCs.
Groundwater flow currently is eastward in the Lower Aquifer and
toward the Northeast Cape Fear River in the Upper Aquifer. However, quarry
dewatering activities in the area historically have altered flow directions.
Therefore, as the most conservative approach, all receptor wells are assumed to
lie directly downgradient of the source areas.
Groundwater migration from the source areas is the only potential
transport mechanism identified for the COCs, and ingestion of groundwater by
potable well users is the only identified potentially complete exposure pathway.
Ninety-one potable wells exist within an approximate 1-mile radius of the Facility,
and the well users are the potential receptors. Fate/transport modeling confirms
that the current COC exceedance concentrations measured in the compliance
perimeter wells neither have nor will migrate to the point of 1-year travel time
upgradient of the nearest receptor wells. Considering the zoning and land use,
no further development of groundwater sources for potable use is anticipated.
The current COC exceedance concentrations beyond the
compliance boundary of the quarry sections will attenuate to the groundwater
standards or established background within eight to ten years under the most
conservative groundwater flow assumption. In addition to monitoring the water
levels and COC concentrations in the compliance perimeter wells, an additional
well cluster (Upper and Lower Aquifer) installed between the sources and the
potential receptor wells will monitor the groundwater flow direction. If the current
6448(001) ii CRA SERVICES

groundwater flow direction is altered to that of the conservative assumption,
OxyChem will propose additional monitor wells.
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TABLE OF CONTENTS
- Pape
EXECUTIVE SUMMARY............................................................................................
TABLE OF CONTENTS................................................................................................
iv,
1.0
INTRODUCTION..................................................................................................
1
1.1
SITE IDENTIFICATION AND LOCATION ...............................................
1
1.2
PURPOSE OF THE CORRECTIVE ACTION PLAN ...............................
1
1.3
SOURCES AND CONSTITUENTS OF CONCERN ................................
2
1.4
AQUIFERS AND GROUNDWATER CLASSIFICATION ........................
4
1.5
SUMMARY OF PAST CORRECTIVE ACTIONS ....................................
5
1.6
PREVIOUS PERTINENT REPORTS.......................................................
6
2.0
EXPOSURE ASSESSMENT................................................................................
7
2.1
AREA LAND USE.....................................................................................
7
2.1.1
Area Reconnaissance Survey...........................................................
7
2.1.2
Property Tax Records........................................................................
7
2.1.3
Zoning Information.............................................................................
7
2.1.3.1
New Hanover County........................................................................
8
2.1.3.2
Pender County...................................................................................
8
2.1.4
Current and Future Land Use...........................................................
8
2.1.5
Computer Database Research Report .............................................
9
2.2
TRANSPORT MECHANISMS AND POTENTIAL RECEPTORS ...........
10
2.2.1
Northeast Cape Fear River...............................................................
10
2.2.2
Surface Water Uses..........................................................................
10
2.2.3
Groundwater Uses.............................................................................
11
2.3
SITE CONCEPTUAL EXPOSURE MODEL ............................................
12
2.3.1
Identification of Chemicals of Concern .............................................
13
2.3.2
Source Areas.....................................................................................
13
2.3.3
Characteristics of the COCs..............................................................
13
2.3.4
Transport Mechanisms......................................................................
14
2.3.5
Exposure Routes...............................................................................
14
2.3.6
Potential Receptors...........................................................................
14
2.4
EXPOSURE PATHWAY ANALYSIS........................................................
14
3.0
OBJECTIVES OF THE CAP................................................................................
15
4.0
SOURCE CONTROL............................................................................................
16
4.1
FORMER LAGOON..................................................................................
16
4.2
QUARRIES................................................................................................
16
644e(001)
IV CRA SERVICES

5.0 EVALUATION OF REMEDIAL ALTERNATIVES ................................................
19
( 5.1
IN SITU BIOLOGICAL TREATMENT.......................................................
19
5.2
GROUNDWATER EXTRACTION AND SURFACE TREATMENT........
19
5.3
NATURAL ATTENUATION......................................................................
20
6.0 PROPOSED CORRECTIVE ACTION.................................................................
20
6.1
REMEDIATION BY NATURAL ATTENUATION ......................................
20
6.2
GROUNDWATER MIGRATION MODELING ..........................................
21
6.2.1
Model Selection.................................................................................
21
6.2.2
Model Input........................................................................................
21
6.2.3
Modeling Results...............................................................................
23
6.3
POTENTIAL FOR GROUNDWATER DEVELOPMENT .........................
24
6.4
SURFACE WATER CONSIDERATIONS................................................
24
6.5
SCHEDULE OF REMEDIATION..............................................................
25
6.6
MONITORING...........................................................................................
25
7.0 PERMITS AND NOTIFICATION..........................................................................
27
7.1
ADJACENT PROPERTIES......................................................................
27
7.2
MONITORING ACCESS...........................................................................
27
7.3
PUBLIC NOTIFICATION..........................................................................
28
8.0 REFERENCES..................................................................................................... 29
�_.. GW-100(1) FORM.......................................................................................................... 30
6448(001) v CRA SERVICES

LIST OF TABLES
Following
Text
TABLE 1.1 1-YEAR MEAN COC CONCENTRATIONS FOR UPPER AQUIFER
COMPLIANCE PERIMETER WELLS
TABLE 1.2 1-YEAR MEAN COC CONCENTRATIONS FOR LOWER AQUIFER
COMPLIANCE PERIMETER WELLS
TABLE 1.3 SUMMARY OF COC CONCENTRATIONS FOR COMPLIANCE
PERIMETER WELLS CPW-12S AND CPW-13S FROM LOW -FLOW
SAMPLING DEMONSTRATION
TABLE 1.4 SUMMARY OF MONITOR WELL GROUNDWATER ELEVATIONS FOR
1997 AND 1998 - UPPER AQUIFER
TABLE 1.5 SUMMARY OF MONITOR WELL GROUNDWATER ELEVATIONS FOR
1997 AND 1998 - LOWER AQUIFER
TABLE 2.1 SUMMARY OF ADJACENT PROPERTY USE AND PROPERTY OWNER
INFORMATION
TABLE 2.2 SUMMARY OF COC CONCENTRATIONS FOR NORTHEAST CAPE
FEAR RIVER SURFACE WATER SAMPLES
TABLE 2.3 SUMMARY OF CHLORIDE CONCENTRATIONS FOR NORTHEAST CAPE
FEAR RIVER SURFACE WATER SAMPLES
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LIST OF FIGURES
Following
Text
FIGURE 1.1 FACILITY LOCATION MAP
FIGURE 1.2 FACILITY PLAN
FIGURE 1.3 CHLORIDE, IRON, TDS, AND pH CONCENTRATIONS, UPPER
AQUIFER, 1998
FIGURE 1.4 CHLORIDE, IRON, TDS, AND pH CONCENTRATIONS, LOWER
AQUIFER, 1998
FIGURE 1.5 HYDROGEOLOGIC CROSS SECTIONS
FIGURE 1.6 GROUNDWATER POTENTIOMETRIC ELEVATIONS, UPPER AQUIFER,
1998
FIGURE 1.7 GROUNDWATER POTENTIOMETRIC ELEVATIONS, LOWER
AQUIFER, 1998
FIGURE 6.1 LIMITS OF AFFECTED GROUNDWATER AND PROPOSED MONITOR
WELL LOCATIONS
6448(001) vii CRA SERVICES

LIST OF APPENDICES
Following
Text
APPENDIXA MAXIMUM -MEAN -MINIMUM PARAMETER CONCENTRATIONS FOR
COMPLIANCE PERIMETER WELLS
APPENDIX B NEW HANOVER COUNTY PROPERTY TAX MAPS AND RECORDS
APPENDIX C PENDER COUNTY PROPERTY TAX RECORDS
APPENDIX D NEW HANOVER COUNTY ZONING MAPS AND DESCRIPTIONS
APPENDIX E PENDER COUNTY ZONING MAP
APPENDIX F COMPUTER DATABASE REGULATORY RESEARCH
DOCUMENTATION
APPENDIX G NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND
NATURAL RESOURCES WATER WELL SEARCH DOCUMENTATION
APPENDIX H GROUNDWATER FATE/TRANSPORT MODELING RESULTS —
QUARRY TARGET CONCENTRATIONS FOR SOURCE CONTROL
APPENDIX I GROUNDWATER FATE/TRANSPORT MODELING RESULTS — ONE-
YEAR-UPGRADIENT-TRAVEL TIME TO RECEPTORS
APPENDIX J GROUNDWATER FATE/TRANSPORT MODELING RESULTS —
EXTENT OF COC EXCEEDANCE CONCENTRATIONS
APPENDIX K NOTIFICATION OF PUBLIC OFFICIALS AND DOCUMENTATION OF
PERMISSION REQUESTS TO AFFECTED LAND OWNERS
saae(oo1)
viii
CRA SERVICES

1.0 INTRODUCTION
1.1 SITE IDENTIFICATION AND LOCATION
The Occidental Chemical Corporation (OxyChem) Castle Hayne
Plant (the "Facility") is located adjacent to the Northeast Cape Fear River near
the town of Castle Hayne, New Hanover County, North Carolina. The location of
the Facility and its major components are shown on the U.S. Geological Survey
71/2-Minute Quadrangle map presented as Figure 1.1. Figure 1.2 is a site plan of
the entire Facility.
1.2 PURPOSE OF THE CORRECTIVE ACTION PLAN
This Corrective Action Plan (CAP) is prepared under the provisions
of Title 15A, North Carolina Administrative Code (NCAC), Subchapter 2L,
Section 0106(I) {15A NCAC 2L.0106(I)) to provide groundwater remediation
through natural attenuation to the standards set forth in 15A NCAC 2L.0202(g).
This "I" -CAP and the previously submitted and approved "c"-CAP {per 15A
NCAC 2L.0106(c)) replace a Special Order by Consent (SOC) as the regulatory
vehicles addressing groundwater issues at the Facility.
OxyChem submitted a "c"-CAP to the North Carolina Department of
Environment and Natural Resources (DENR) on April 1, 1998; DENR approved
the CAP on April 20, 1998. The "c"-CAP addressed continued active
remediation of dissolved chromium in the groundwater beneath the plant
process area and replaced SOC GW#93-01 prior to its expiration on July 14,
1998. This "I" -CAP addresses groundwater exceedance concentrations of non -
chromium constituents (i.e., chlorides, iron [Fe], pH, and total dissolved solids
[TDS]) in the areas of the closed former sludge lagoon and outside the
a.�
CRA SERVICES

_ Compliance Boundary of Quarry 1, Sections 1 and 2 (hereafter, Quarry Section
1 or 2), all of which are, or were, permitted to receive wastewater treatment
residual solids (sludge) under state non -discharge permits.
1.3 SOURCES AND CONSTITUENTS OF CONCERN
The principle constituent of concern (COC) at the Facility
historically has been and remains chromium. The Facility began processing
chrome ore in 1971 for the production of chromium chemicals (e.g., chromic
acid, sodium bichromate, etc.). Releases in the plant process area resulted in
chromium entering the groundwater beneath the plant, which was discovered
and reported to the state in 1975. Monitoring and remediation of groundwater by
extraction and treatment began in 1975 and has continued uninterrupted to the
present. Active remediation continues under a DENR-approved "c"-CAP.
Wastewater treatment sludge was originally discharged to a
permitted diked lagoon. The lagoon is located on the low -elevation flood plain
north of the plant process area and adjacent to the Northeast Cape Fear River.
The sludge was not rich in leachable chromium, but contained chlorides.
Precipitation which collected within the lagoon and percolated through the
sludge created a chlorides -rich leachate which entered the groundwater.
Consequently, the constituents of concern (COCs) in the lagoon area are TDS
and chlorides. The lagoon, which received sludge uninterrupted from 1971 to
1977 and served as an emergency backup from 1977 to 1991, was capped and
closed in 1994 under a closure plan approved by DENR.
Former limestone Quarry Sections 1 and 2, located on the river
flood plain (quarries now water filled), are permitted to receive sludge from the
Facility's wastewater treatment plant (DENR non -discharge permit WQ0001492).
Quarry Section 1 began receiving sludge in 1977 and is nearing capacity.
6448(001) 2 CRA SERVICES

Quarry Section 2 received sludge for only a six -hour period prior to 1998, and
for a period of five months (March 15 to August 10) during 1998. During the
past 21 years of operation, the water level in Quarry Section 1 typically has been
maintained higher than the surrounding water levels, including the level of
Quarry Section 2. The water in Quarry Section 1, the quality of which is
impacted by the sludge, was free to migrate out of the quarry and through the
thin rock divide separating the quarry sections, thus affecting the water quality in
Quarry Section 2 and the surrounding groundwater. The surrounding
groundwater is monitored for compliance with the 15A NCAC 2L.0202(g)
standards or established background standards within the permit -established
Compliance Boundary, and groundwater concentration exceedances in certain
"classical" parameters have been detected. The COCs in the quarry area are Fe,
TDS, pH, and chlorides.
Therefore, groundwater exceedance concentrations in the lagoon
area and beyond the Compliance Boundary for the quarry sections, which are
attributable to OxyChem's plant operations, are the result of the historical
operation of the closed former lagoon and Quarry Section 1. (Groundwater
exceedance concentrations beyond the Compliance Boundary may also be
attributable to natural background and/or other industrial activities in the
immediate area.) Both Quarry Section 1 and the closed lagoon operated under
non -discharge permits issued by DENR prior to December 30, 1983, and,
therefore, are not "permitted activities" as that term is defined in 15A NCAC
2L.0106(e). Accordingly, remediation under 15A NCAC 2L.0106(I) is a
permissible approach. Monitoring data for the COCs for 1998 are summarized
on Tables 1.1 and 1.2, and Figures 1.3 and 1.4, and on individual well
concentration graphs presented in Appendix A.
OxyChem has typically collected groundwater samples for
analyses of the COCs with high -flow techniques. While having little effect on pH
6448(ooi) 3 CRA SERVICES

and chlorides, high -flow sampling potentially can affect the analytical results for
metals and dissolved solids due to the interaction of laboratory acid extraction
with suspended solids. To determine if the historically observed Fe and TDS
concentrations have been artificially elevated by the high -flow sampling
technique, a low -flow sampling demonstration was performed on wells CPW-12S
and CPW-13S.
In June 1998, the wells were purged and sampled using a
peristaltic pump operating at a flow rate of 0.5 liters per minute or less. The
analytical results revealed minimal differences between the Fe and TDS
concentrations in the groundwater samples collected by the low -flow technique
and those collected during the previous routine sampling by high -flow methods.
Based upon this demonstration, the historically used high -flow sampling
procedures have not resulted in artificially elevated concentrations of Fe and
TDS; they are valid COCs. The analytical results from the low -flow sampling
demonstration are summarized on Table 1.3.
1.4 AQUIFERS AND GROUNDWATER CLASSIFICATION
The Facility is underlain by two aquifers, the Upper Aquifer and the
Lower Aquifer (Dames & Moore, 1981; Woodward -Clyde, 1990). Figure 1.5
presents a cross section of the aquifer systems. Groundwater potentiometric
elevations for the Upper and Lower Aquifers are summarized on Tables 1.4 and
1.5, and Figures 1.6 and 1.7.
The Upper Aquifer is hydraulically unconfined and consists of the
Upper Castle Hayne Limestone and the overlying unconsolidated sediments.
The Upper Aquifer ranges in thickness from 15 to nearly 50 feet. Natural
groundwater flow in the vicinity of the Facility is northward toward the Northeast
Cape Fear River at an estimated velocity of 100 feet per year (ft/yr).
644e(001) 4 CRA SERVICES

The Middle Castle Hayne Limestone, a 3- to 5-foot thick dense
fine-grained limestone, forms an aquiclude hydraulically separating the Upper
and Lower Aquifers. The aquiclude has been removed by much of the quarry
excavations, and has been removed naturally by erosion in areas near the river;
therefore, the hydraulic separation between the aquifers is not laterally
consistent over the Facility or vicinity.
The Lower Aquifer consists of the Lower Castle Hayne Limestone
and the underlying sandstone of the Pee Dee Formation. The Pee Dee
Formation reportedly becomes clayey at depth forming an aquiclude base to the
aquifer; the thickness of the Lower Aquifer in the area exceeds 100 feet. The
Lower Aquifer is a confined aquifer except in those areas where the overlying
aquiclude has been removed by quarry excavation or erosion. Groundwater flow
in the Lower Aquifer is influenced by dewatering operations at the various
limestone quarries in the vicinity. Currently, groundwater migrates eastward at
approximately 55 ft/yr toward an active quarry located approximately 1 mile from
the plant process area; historically, groundwater has migrated other directions in
response to other quarry operations.
Groundwater beneath the Facility is Class GA in accordance with
15A NCAC 2L.0201.
1.5 SUMMARY OF PAST CORRECTIVE ACTIONS
In 1994 as required by SOC GW#93-01, the former sludge lagoon
was closed by constructing a contoured cap consisting of an impervious
membrane overlain by a synthetic drainage layer and soil cover. The cap sheds
precipitation as sheet runoff and prevents it from infiltrating the impounded
sludge. This, in turn, prevents the formation of chloride -rich leachate within the
sludge and the subsequent migration of leachate into the groundwater. The
6448(001) 5 CRA SERVICES

impervious cap constitutes source control for COCs, predominantly chlorides,
emanating from the closed former sludge lagoon.
The Closure Plan for the former lagoon was approved by DENR on
December 3, 1993. Implementation of the Closure Plan was documented to
DENR on February 10, 1995.
1.6 PREVIOUS PERTINENT REPORTS
This CAP is based upon the information previously submitted to
DENR in the documents listed below. By reference, these documents are
considered a part of this CAP.
Ground Water Hydrology Studies, Re: Chromium Contamination, Castle
Hayne Plant, North Carolina, Diamond Shamrock Corporation, Dames &
Moore, June 1981.
Groundwater Assessment Final Report, Special Order by Consent,
Occidental Chemical Corporation Castle Hayne Plant, Castle Hayne, North
Carolina; Woodward -Clyde Consultants, January 1990.
1997 Annual Groundwater Report, Occidental Chemical Corporation Castle
Hayne Plant, Castle Hayne, North Carolina; CRA Services, April 1998.
Corrective Action Plan, OxyChem Castle Hayne Plant, Occidental Chemical
Corporation, Castle Hayne, New Hanover County, North Carolina, for
Continued Groundwater Remediation by Extraction and Treatment Under the
Provisions of 15A NCAC 2L.0106(c), CRA Services, April 1, 1998.
5449(001) 6 CRA SERVICES

2.0 EXPOSURE ASSESSMENT
2.1 AREA LAND USE
2.1.1 Area Reconnaissance Survey
An area reconnaissance survey of the surrounding land was
performed on April 24, 1998, within an approximate 1-mile radius of the Facility
to determine the area land use and identify potential receptors. The Facility is
located within a mixed undeveloped, industrial, and residential area.
2.1.2 Property Tax Records
The available property records of the New Hanover County and
Pander County Tax Administrator's Offices were reviewed to determine
ownership of the properties in the vicinity of the Facility. A list of the pertinent
properties and owners is presented on Table 2.1. The available property records
and tax maps for the Facility and the surrounding area are presented in
Appendix B for New Hanover County and Appendix C for Pender County.
2.1.3 Zoning Information
The available zoning information from the New Hanover and
Pender County Planning Departments was reviewed to determine permitted uses
of the area surrounding the Facility. No known zoning changes are currently
planned for the area immediately surrounding the Facility.
saasioo>> 7 CRA SERVICES

2.1.3.1 New Hanover County
The Facility and the immediately surrounding area in New Hanover
County are zoned as an Industrial District (1-2). Permitted uses of 1-2 industrial
districts include agriculture, mining, construction, and manufacturing. Residential
dwellings are not permitted in areas zoned as 1-2 and are considered a "non-
conforming use"; however, "non -conforming use" situations (e.g., residences
located on Coon Hunter's Trail) are permitted when the "non -conforming use"
first occurred prior to the effective date of the current zoning rules. Therefore,
the "non -conforming use" of the residential properties is permitted, but no new
residential construction is permitted in the immediate area of the Facility. The
applicable portions of the New Hanover County Zoning Maps and designation
descriptions are presented in Appendix D.
2.1.3.2 Pender Countv
CThe area north of the Facility across the Northeast Cape Fear
River in Pender County is zoned as a Rural Agricultural District (RA). The area
immediately north of the Facility in Pender County is currently a forest owned by
Georgia Pacific Corporation. The applicable portion of the Pander County
Zoning Map is presented in Appendix E.
2.1.4 Current And Future Land Use
Based on the information obtained during the county agency
research, no known changes in land use are planned for the area surrounding
the Facility. Therefore, an exposure scenario developed for the current land use
(i.e., industrial and residential use) is also applicable to future land use.
6448(001) 8 CRA SERVICES

2.1.5 Computer Database Research Report
An environmental records computer database research report was
obtained in accordance with ASTM E 1527-97, Standard Practice for
Environmental Assessments. Numerous databases were searched for
information pertaining to the Facility and surrounding properties. The report is
presented in Appendix F.
The State Hazardous Waste Sites (SHWS) records are the state's
equivalents of the Comprehensive Environmental Response, Compensation, and
Liability Information System (CERCLIS). A review of the SHWS records revealed
that the Facility and the adjacent Martin Marietta Corporation and Dixie Cement
Company (formerly Ideal Cement Company and currently associated with
Roanoke Cement Company) facilities are listed in the SHWS database. The
other listed facilities were not identified to be within an approximate 1-mile radius
�- of the Facility.
A number of unspecified rare and endangered species of plants
and animals were identified in the database research report; however, none of
the identified species are located within an approximate'/ -mile radius of the
Facility.
The nearest public water supply water well was identified in the
database research report to be owned by Pizza Inn and located approximately
1/2-mile northwest of the Facility (within Georgia Pacific Corporation's forest);
however, two sets of differing coordinates are listed for the well. The well is
actually located approximately 12 miles south-southwest of the facility (verbal
communication, manager, Pizza Inn, and Mr. J. S. Sanders, CRA Services, May
1, 1998.)
6448(001) 9 CRA SERVICES

2.2 TRANSPORT MECHANISMS AND POTENTIAL RECEPTORS
2.2.1 Northeast Cape Fear River
OxyChem routinely monitors water quality in the Northeast Cape
Fear River upstream and downstream of the Facility to determine if operations,
in particular the NPDES-permitted outfall, affect river water quality. (See Figure
1.1 for the river surface water sampling locations.) OxyChem analyzes the river
water samples for chromium, chlorides, and pH; a summary of these data for
1997 is shown on Table 2.2.
A principal COC in the NPDES-permitted outfall is chlorides. The
up -river and down -river chlorides data from 1993 through 1997 were evaluated
to determine if discharge from the NPDES-permitted outfall and incidental
groundwater discharge from the Facility to the river created a measurable effect.
Table 2.3 presents the results. During the 5-year period from 1993 through
C1997, the chloride concentrations in the down -river samples were either lower or
equal to the up -river samples 50 percent of the time. The 5-year average
difference between the chloride concentrations in the down -river and up -river
samples was only 1 milligram per liter (mg/Q. Groundwater discharge to the
river, even when combined with the high -volume, high -chloride NPDES outfall
discharge, created no measurable effect on the river water quality for chlorides.
Therefore, surface water in the Northeast Cape Fear River is not a transport
mechanism for COCs from the Facility. With no transport mechanism, users of
river water are not, therefore, potential receptors.
2.2.2 Surface Water Uses
Surface water in the immediately surrounding area is not used as a
drinking water source. The Facility and the near -by Dixie Cement facility utilize
surface water from the Northeast Cape Fear River for plant processes. The
saaa(ooi) 10 CRA SERVICES

adjacent Martin Marietta Corporation facility obtains surface water from a water -
filled former quarry located west of the Facility for plant process use and for non -
potable domestic use. Therefore, surface water (including the Northeast Cape
Fear River) is not a transport mechanism.
2.2.3 Groundwater Uses
Based upon the public water system (PWS) records obtained from
the DENR Public Health Division (PHD), 44 PWSs are located within an
approximate 3-mile radius of the Facility. The PWS records are presented in
Appendix G along with a map showing the PWS locations.
The PHD defines (1) a PWS as a system which serves 25 or more
people, and (2) a private water system as a system which serves less than 25
people. The PHD database only contains information on PWSs. A community
PWS type is defined as a system that serves 15 or more connections or
regularly serves 25 or more year-round residents. A transient non -community
PWS type is defined as a system that serves 25 or more people at least 60 days
per year.
The nearest PWS wells are OxyChem's potable wells located
approximately % of a mile south of the Facility (OxyChem wells PW-7, PW-8,
and PW-9). A PWS Well listed as '/-mile from the Facility was confirmed to be
at a Pizza Inn located 12 miles from the Facility (see Section 2.1.5).
Municipal potable water is not available to the Facility and
immediately surrounding area. Most of the area properties contain a potable
well. Ninety-one potable wells (PWS wells and private potable wells) were
identified within an approximate 1-mile radius of the Facility during the area
reconnaissance survey; the locations of these wells are shown on Figure 1.1.
6448(001) 11 CRA SERVICES

The near -by Dixie Cement Company facility does not use a potable
well. Drinking water is obtained from an off -site bottled water source and process
and domestic non -potable water is obtained from the Northeast Cape Fear
River.
The adjacent Martin Marietta Corporation facility has a well
classified as potable; however, the well is only used occasionally to supply the
on -site restrooms. Martin Marietta Corporation obtains drinking water from an
off -site bottled water source and obtains process water (includes supply to the
on -site restrooms on weekdays) from a water -filled former quarry located west of
the Facility.
The nearest non-PWS potable wells to the Facility are the Martin
Marietta Corporation well and the six potable wells located at the residential
properties on Coon Hunter's Trail (see Figure 1.1). The next nearest wells are
the OxyChem wells located south of Holly Shelter Road.
2.3 SITE CONCEPTUAL EXPOSURE MODEL
Development of an exposure scenario and potential exposure
pathways involves the identification of (1) the specific COCs and their source
areas, (2) transport mechanisms, (3) exposure routes, and (4) potential
receptors. In order for a potential receptor to be exposed to a COC, the
exposure pathway must be complete (i.e., must have a source, a transport
mechanism, an exposure route, and a potential receptor).
644e(001) 12 CRA SERVICES

2.3A Identification Of Chemicals Of Concern
The COCs identified for this "I" -CAP are Fe, TDS, pH, and
chlorides.
2.3.2 Source Areas
The closed lagoon is a source area for Fe, TDS, and chlorides,
and Quarry Section 1 is a source area for Fe, TDS, pH, and chlorides.
2.3.3 Characteristics of the COCs
Detectable concentrations of Fe, TDS, and chlorides are typically
present in natural groundwater. Concentrations of these COCs in excess of the
15A NCAC 2L groundwater standards may affect the desirability of potable water
or limit the use to industrial purposes. Except in extremely high concentrations,
these COCs affect only the taste and pleasantness of potable water.
The value of pH is a measure of the acid/base quality of the water.
A value of 7.0 is neutral; lower values are acidic, and higher values are basic.
Values of pH below the lower groundwater standard of 6.5 standard units have
been observed in groundwater samples at the Facility. However, carbonate
bedrock (limestone) and the overlying sands containing shell material buffer
acidity, and as the groundwater moves through the surrounding carbonate -rich
aquifer, the pH of the groundwater will be rendered essentially neutral. The pH
values below the groundwater standard will not persist as the groundwater
migrates; hence, a continuous transport mechanism for acidic pH values does
not exist, and pH is not a COC with downgradient migration potential.
6449(001) 13 CRA SERVICES

2.3.4 Transport Mechanisms
The Northeast Cape Fear River receives shallow groundwater
discharge and some surface water runoff/discharge from the Facility, but reflects
no measurable effect of the COCs (see Section 2.2.1). The river is not,
therefore, a transport mechanism. There is no other surface water transport
mechanism leaving the Facility. The only potential transport mechanism for the
COCs is groundwater migration from the source areas away from the Northeast
Cape Fear River.
2.3.5 Exposure Routes
Based upon the identified source areas and potential transport
mechanism, ingestion of groundwater is the only potentially complete exposure
route.
2.3.6 Potential Receptors
Potential- receptors are the identified potable users of groundwater
in the immediately surrounding area. OxyChem has identified 91 potable wells
within an approximate 1-mile radius of the Facility. The nearest wells are located
at the Martin Marietta Corporation facility, on Coon Hunter's Trail, and on
OxyChem's property south of Holly Shelter Road.
2.4 EXPOSURE PATHWAY ANALYSIS
The only identified potentially complete pathway for the COCs with
transport mechanisms (i.e., Fe, TDS, and chlorides) from the Facility to a
potential receptor is groundwater migration to potable wells and subsequent
6448(001) 14 CRA SERVICES

usage by (1) commercial workers at the Facility and the Martin Marietta
Corporation plant, and (2) residents on Coon Hunter's Trail, in the Blue Clay
Road area, and other isolated residences in the vicinity (see Figure 1.1).
3.0 OBJECTIVES OF THE CAP
Remediation by natural attenuation will mitigate concentrations of
COCs which exceed groundwater or background standards at or outside of the
Compliance Boundary. The target cleanup concentrations for all CO Cs except
Fe are the 15A NCAC 2L.0202(g) groundwater standards. For Fe, the target
concentration is the background concentration previously established
(Woodward -Clyde, 1990) for each aquifer beneath the Facility under the SOC.
These COC concentrations are summarized in the following table:
COC
15A IVCAG 2L
SbG ES rAgLISHED.
STANDARD
GROUNDINATR
(ms�U ..
STANDARD
m /L
CHLORIDE
250
250
IRON (Upper Aquifer-
0.3
10.5
Fluvial Deposits)
IRON (Upper Aquifer
0.3
7.3
non -Fluvial Deposits)
IRON (Lower Aquifer)
0.3
3.3
TDS
500
500
6448(001) 15 CRA SERVICES

4.0 SOURCE CONTROL
The provisions of 15A NCAC 2L.0106(I) require that the sources of
the COC creating groundwater exceedance concentrations be controlled.
4.1 FORMER LAGOON
Capping of the former lagoon in 1994 (see Section 1.5) effected
source control for COCs leaching from the impounded sludge.
4.2 QUARRIES
Although not a permitted activity as defined under 15A NCAC
2L.0106(e), Quarry Section 1 continues to receive sludge from the Facility's
wastewater treatment plant under a non -discharge permit. In order to control
this source and avoid future groundwater exceedance concentrations at the
Compliance Boundary, OxyChem 1) has determined target maximum COC
concentrations that can be present in the sludge -impacted quarry water without
creating a,groundwater concentration exceedance at the Compliance Boundary,
and 2) has initiated procedures for maintaining COC concentrations in the
quarry water which will not create exceedances at the Compliance Boundary. .
The Domenico analytical solute transport model was used to
estimate the physical attenuation by advection and dispersion of the COCs as
they migrate from the quarry wall to the Compliance Boundary and to determine
the maximum concentrations of COCs that can exist in the quarry water without
creating an exceedance of groundwater standards or accepted background at or
beyond the Compliance Boundary. The modeling was based upon the following:
6448(001) 16 CRA SERVICES

In both the Upper Aquifer and Lower Aquifer, groundwater flow is outward
from the quarry sections to the Compliance Boundary. (Flow in the Lower
Aquifer has varied historically with nearby quarry dewatering, and the
assumption of outward flow is appropriate. Flow in the Upper Aquifer is
generally toward the river; therefore, the assumption of outward flow is
highly conservative for the southern Compliance Boundary perimeter.)
The Compliance Boundary is 250 feet from the quarry edge. This is the
case for Quarry Section 2 (post-1983 permit) and conservative by a factor of
two for Quarry Section 1 (pre-1983 permit).
The quarry wall acts as an aquifer with a thickness of 40 feet (i.e., the
approximate depth of the quarry). The quarries penetrate and, hence,
connect the Upper and Lower Aquifers. Away from the quarries, the Upper
and Lower Aquifers have hydraulic separation, but at a distance of only 250
feet, the combined aquifer assumption is likely more valid, and is the more
conservative modeling approach.
The source width is the length of each quarry side which is approximately
2,000 feet for Quarry Sections 1 and 2.
The previous SOC GW#93-01 established groundwater standards for the
Facility as the 15A NCAC 2L.0202(g) standards except for Fe; the
C_ Groundwater Assessment Final Report (Woodward -Clyde, 1990)
established background concentrations for Fe for each horizon in the
aquifers. (See table in Section 3.0.) Of these aquifer -zone -specific
background concentrations, 3.3 mg/L established for the Lower Aquifer is
the lowest, and since the quarries penetrate to the Lower Aquifer, this value
is used as the Compliance Boundary exceedance concentration for all
aquifers.
Attenuation of pH cannot be modeled. However, pH values below 7.0 will be
buffered by contact with the limestone and cannot, therefore, travel any
significant distance in the aquifers. Any low pH exceedance, as has
occurred in the past, will attenuate to neutral at the Compliance Boundary.
The modeling results are included in Appendix H and are
summarized on the following table:
644e(ool) 17 CRA SERVICES

OxyChem has implemented actions to meet these target COC
concentration. First, OxyChem has modified the waste treatment process and
increased the chloride removal efficiency from approximately 96 to 98 percent to
reduce the chloride loading to the quarry water.
Second, OxyChem identified the major contributing source of
chlorides and TDS to be the cement kiln dust added to the sludge waste stream
after final treatment. OxyChem's non -discharge permit requires the addition of
cement kiln dust or similar lime material to ensure the alkalinity of the waste
sludge so that it consistently meets the chromium standard upon periodic
analysis by RCRA toxicity tests (i.e., TCLP methods). The cement kiln dust
historically used appears to account for approximately 85 percent of the
chlorides/TDS in the sludge discharged to the quarry. OxyChem researched
various alternate sources of alkaline material and has implemented use of an
alternative which complies with the non -discharge permit requirements, is low in
chlorides and TDS, and is cost-effective. Improvements in the sludge treatment
efficiency and substitution of this alternate, low -chloride source of alkalinity
reduces the COC concentrations in Quarry Section 1 (and subsequently in
Quarry Section 2) to the target levels.
This, in turn, will result in COC concentrations at the Compliance
Boundary which do not exceed the groundwater standards or established
background. Maintaining COC concentrations at or below exceedance
8448(001) I 8 CRA SERVICES

concentrations at the Compliance Boundary constitutes source control if the
assumption of outward groundwater flow from the quarries is valid for both
aquifers throughout the period of natural attenuation remediation.
5.0 EVALUATION OF REMEDIAL ALTERNATIVES
5.1 IN SITU BIOLOGICAL TREATMENT
The COCs in exceedance concentrations in groundwater samples
from monitor wells at the Quarry Section 1 Compliance Boundary are TDS,
chlorides, and Fe (pH was previously eliminated as a COC with downgradient
migration potential, Section 2.3.3). These parameters, which naturally occur in
the area groundwater in detectable concentrations, are not affected by and,
hence, are not candidates for any form of in situ biological treatment.
5.2 GROUNDWATER EXTRACTION AND SURFACE TREATMENT
Active remediation in the form of groundwater extraction and
surface treatment was considered and rejected for the following reasons:
Extraction of groundwater near the quarry perimeter will induce
migration of quarry water into the surrounding aquifer, potentially
reducing the effectiveness of the source control measures. (The
extraction wells may inhibit the natural dispersion of the COCs in the
quarry water migrating into the aquifer; the extraction wells may
simply recycle quarry water.)
The extraction of a significant quantity of groundwater may adversely
impact private potable wells, which are the potential receptors the
remedial action is intended to protect. Potential impacts include
lowering the water level and/or increasing turbidity in the potable
wells.
The potential plume of affected groundwater extends around a
significant but relatively undefined portion of the quarry perimeter.
6448(001) 19 CRA SERVICES

Therefore, the extraction scheme (both number of extraction points
�Y and quantity of water extracted and treated) would be extensive,
costly, and potentially impracticable.
5.3 NATURAL ATTENUATION
With source control measures implemented, the existing COC
exceedance concentrations at and beyond the Compliance Boundary will
naturally attenuate by advection and dispersion over time and distance to the
15A NCAC 2L.0202 standards or the established background level. These
standards must be achieved at a one-year groundwater travel -time distance
upgradient of the potential receptor wells. Since this alternative does not reduce
the effectiveness of the source control measures (as extraction and treatment
may), OxyChem has pursued this alternative.
6.0 PROPOSED CORRECTIVE ACTION
6.1 REMEDIATION BY NATURAL ATTENUATION
As presented in Section 2.2.1, the exceedance COC
concentrations do not affect surface water bodies. The COCs in exceedance
concentrations at the Compliance Boundary will naturally attenuate by
advection and dispersion to concentrations below the established standards
before reaching the point of one-year travel time upgradient of the nearest
receptor on Coon Hunter's Trail. This is confirmed by groundwater modeling
with conservative assumptions of aquifer behavior and of groundwater travel
direction and rate. The following sections describe the modeling in detail, and
the results are shown on Figure 6.1.
6446(001) 20 CRA SERVICES

6.2 GROUNDWATER MIGRATION MODELING
6.2.1 Model Selection
The Domenico analytical solute transport model was used to
estimate the resulting downgradient COC concentrations from the source areas.
The Domenico model uses a vertical plane source, perpendicular to groundwater
flow, to simulate the release of COCs from the mixing zone to the moving
groundwater. The model accounts for attenuation (i.e., reduction in
concentrations of COCs) due to the effects of advection and dispersion. The
Domenico model equation, model input parameters, and the modeling results
are presented in Appendices H, I, and J.
6.2.2 Modellnput
Historically, groundwater flow direction in the Lower Aquifer has
varied depending upon near -by quarry dewatering operations. In addition, the
potential source of COCs covers a large area. Therefore, even though
groundwater flow in the Upper Aquifer is generally toward the river, each
potential receptor potable well, regardless of the aquifer in which it is screened,
was conservatively assumed to lie directly downgradient of the source area.
(For the purposes of modeling, the potential source area includes the closed
lagoon, the Compliance Boundary around Quarry Section 1, and the Compliance
Boundary around Quarry Section 2 which has been impacted by the historical
operation of Quarry Section 1.) The exact location of the wells within the
residential properties is not known; locations were estimated from field
reconnaissance. Groundwater migration velocity varies from 100 feet per year in
the Upper Aquifer to 55 feet per year in the Lower Aquifer. Therefore, the point
of one-year travel -time distance upgradient of the receptor is conservatively
6448(001) 21 CRA SERVICES

taken to be 100 feet from the nearest receptor well in the direction of the nearest
CPW well exhibiting exceedance concentrations.
At the potential source, the Middle Castle Hayne Limestone
aquiclude is largely absent, and the Upper and Lower Aquifers combine into one
system. Moving away from the river (i.e., downgradient in model input
assumptions), the aquifers are separated into two distinct hydrogeologic units.
At the quarry perimeter the subsurface behaves as one combined aquifer, and
the modeling to determine the maximum COC concentrations allowable in the
quarry assumed the quarry depth was the effective source thickness (see
Section 4.2). However, from the Facility's perimeter compliance wells outward
from the Facility (e.g., from CPW-12S and -12D well locations toward the
nearest potable wells on Coon Hunter's Trail) the subsurface reasonably
behaves as two hydraulically separated aquifers with a thickness affected by the
COCs of approximately 40-feet each.
C-. As the combined quarry sections are considered a potential
source, the source groundwater plume width is near infinite compared to a single
receptor well. A combined quarry southern perimeter length of 2,600 feet was
used in the modeling.
OxyChem applied the modeling scenario first to the three closest
sets of potable wells. Compliance perimeter wells CPW-12S and CPW-12D are
located closest to the Martin Marietta Corporation well (1,400 feet), the nearest
well on Coon Hunter's Trail (1,200 feet), and the OxyChem potable wells (4,000
feet). The 1998 mean COC concentrations from wells CPW-12S and CPW-12D
were used as the source concentrations for migration modeling to these potential
receptor wells.
Although wells CPW-12S and CPW-12D are closest to the
potential receptor wells, the 1998 mean COC concentrations from these wells
6449(001) 22 CRA SERVICES

were not necessarily the highest observed at the Facility. Therefore, to check the
impact of higher concentrations at greater distances, migration of the COCs from
the compliance perimeter wells with the highest Fe, TDS, and chlorides
concentrations to the nearest potential receptor well were also modeled. The
highest concentrations of TDS and chlorides were observed in the samples from
well cluster CPW-5; the nearest receptor well is the Martin Marietta Corporation
well (3,600 feet). The highest concentration of Fe was observed in the samples
from well clusters CPW-12 and CPW-13; the nearest receptor well is a potable
well on Coon Hunter's Trail (2,000 feet).
6.2.3 Modelinq Results
The model predicts the COC concentrations expected in the
groundwater at the one-year travel -time distance upgradient of the potential
receptor wells. No predicted COC concentration for any of the modeled
scenarios exceed the 15A NCAC 2L.0202(g) groundwater standard or the
C background level previously established for the Facility. The results of the
various modeling scenarios are included in Appendix I.
Since the modeling predicted no COC concentrations above
standards at the one-year-travel-time-upgradient location to the OxyChem,
Martin Marietta Corporation, or Coon Hunter's Trail wells, potable wells located
those distances or farther from the Facility will, likewise, experience no COC
concentrations above standards.
To evaluate the extent of current exceedance concentrations
beyond the Compliance Boundary, the model was used in an iterative process to
locate the distance beyond the Compliance Boundary at which the current
potential source conditions result in COC concentrations equal to the
established standard. The modeling results are presented in Appendix J.
saaelooi l 23 CRA SERVICES

6.3 POTENTIAL FOR GROUNDWATER DEVELOPMENT
As stated in Section 2.1.3.1, the area of COC exceedances in the
groundwater (exceedance plume) is zoned industrial (1-2) with no anticipated
changes in zoning. The nearest downgradient residences to the exceedance
plume are considered "non -conforming" land use, and no further residential
development is allowed under the industrial zoning.
The exceedance plume lies exclusively under properties owned by
OxyChem, Martin Marietta Corporation, and Southdown, Inc. (formerly Dixie
Cement Company, Inc.). While the industrial zoning does not preclude the
installation of potable wells (PWS or private) for industrial facilities, neither
OxyChem nor Marietta use on -site wells for potable purposes due to the
background water quality (see Section 2.2.3); the Dixie Cement Company
property is a railroad easement with no wells. Therefore, no development of
potable groundwater use in or adjacent to the exceedance plume will occur in
C the foreseeable future.
6.4 SURFACE WATER CONSIDERATIONS
As presented in detail in Section 2.2.1, the exceedances in COC
concentrations at the quarry Compliance Boundary and around the closed
former sludge lagoon have had no detectable affect upon the Northeast Cape
Fear River, which is the adjacent surface water body.
6446(001) 24 CRA SERVICES

6.5 SCHEDULE OF REMEDIATION
OxyChem has implemented source control measures for the closed
former sludge lagoon by constructing an impervious cap in 1994 and for Quarry
Section 1 by maintaining COCs at concentrations in the quarry water that will not
create exceedances at the Compliance Boundary. (These same source control
measures will be applied to Quarry Section 2, a "permitted" activity, so that no
exceedances related to the operation of Quarry Section 2 will occur.) With
source control, the existing exceedance concentrations noted in the CPW wells
will naturally attenuate. The mechanisms of attenuation are advection and
dispersion; therefore, the rate of attenuation is proportional to groundwater flow
velocity, which ranges from 55 to 100 feet per year. Based on the assumption of
radial groundwater flow outward from the Compliance Boundary, exceedance
concentrations are estimated to extend a maximum 700 feet from the
Compliance Boundary (see Figure 6.1); therefore, approximately eight to ten
years of advection/dispersion are required to attenuate all COC concentrations
C_ to below groundwater standards or the established background level.
6.6 MONITORING
OxyChem collects and analyzes groundwater samples from the
CPW wells located within the Compliance Boundary three times per year as a
requirement of the non -discharge permit; the analysis includes the COCs.
Monitoring reports for this "I" -CAP will be semi-annual and will include the
pertinent analytical data from the one or two tri-annual permit -required sampling
events occurring within the reporting period as follows:
6446(001) 25 CRA SERVICES

?> e 9a,$,N
MrPyY. TaNa?„[3?
.,�,%aGr Y,t''✓%UQun'.;'.'..�'A�.%'R '9H ..6,99:.
`�F' $>N ,,...a4<r6:.e
�$°.'^o�2'ss�?std,� 2;.�<<,'.'s'E.3R`S'z�:2.:�`v.`Y<?'3'd��.`�pZl�a,":
�' it ���S�'`.'�:.a:?�''9.. �,:$Ai.✓��j'r'y'�,E.�'�Px�';
January - June
August 31
July - December
February 28
The pertinent CPW wells included in the monitoring program for
this T'-CAP are:
CPW-7S
CPW-7D
CPW-8S
CPW-8DR
CPW-9S
CPW-9D
CPW-10S
CPW-10D
CPW-12S
CPW-12D
CPW-13S
CPW-13D
CPW-14S
CPW-14D
CPW-15S
CPW-15D
The modeling for both Upper and Lower Aquifers and, hence, the
predicted extent of groundwater with COC exceedance concentrations are based
on the conservative assumptions that groundwater flow in both aquifers is
radially outward from the quarry sections at the highest estimated groundwater
flow velocity for either aquifer. However, at this time, groundwater flow does not
coincide with those conservative assumptions. Currently, groundwater flow in
the Lower Aquifer is apparently to the east; although, historically Lower Aquifer
flow has been in other directions in response to area quarrying operations.
Current groundwater flow in the Upper Aquifer is likely toward the NE Cape Fear
River, which is directly opposite the conservative modeling assumptions and
places the potential receptor wells upgradient, not downgradient, of the source
areas.
Accordingly, one additional monitoring well cluster consisting of an
Upper Aquifer well (denoted LCW-1 S) and a Lower Aquifer well (LCW-1 D) is
proposed on the Martin Marietta Corporation property at a location between the
6448(001) 26 CRA SERVICES

source and the potential receptor wells (see Figure 6.1). These two wells will be
monitored concurrently with the CPW wells (tri-annually) for groundwater
elevation only to confirm when, and if, groundwater flow conforms to the
modeling assumptions, and in that event, OxyChem will propose additional
monitoring wells to meet the monitoring requirements under the provisions of
15A NCAC 2L.0106(I).
7.0 PERMITS AND NOTIFICATION
7.1 ADJACENT PROPERTIES
Under the modeled conditions, COC exceedance concentrations
are predicted to exist beneath portions of the adjacent property owned by Martin
Marietta Corporation and the railroad easement owned by Dixie Cement
Company, Inc. (see Figure 6.1). OxyChem has requested permission from those
property owners to allow those exceedance concentrations to remain in the
groundwater beneath their property during the period of natural attenuation
required to reduce those concentrations to the applicable groundwater standard
or background concentration. Copies of the letters of request and Certified Mail
receipts are included in Appendix K.
7.2 MONITORING ACCESS
OxyChem has requested permission from Martin Marietta
Corporation to install the proposed two additional monitoring wells on their
property and to subsequently access those wells for monitoring purposes. A
copy of the letter of request and Certified Mail receipt are included in Appendix
K.
saaelooil 27 CRA SERVICES

7.3 PUBLIC NOTIFICATION
In accordance with 15A NCAC 2L.0114(b), notification that
OxyChem has submitted a CAP based on natural attenuation processes shall be
made to the local Health Director, the chief administrative officer of the local
political jurisdiction, and owners and occupants within or contiguous to the area
underlain by the plume of affected groundwater or under areas to which it is
expected to migrate. Based on the predictive modeling, the only
owners/occupants of properties underlain or contiguous to the current or
predicted area of affected groundwater are Martin Marietta Corporation and
Dixie Cement Company, Inc. Therefore, notification by Certified Mail will be
made to the following:
David E. Rice, Director
New Hanover County Health Department
2029 South 171h Street
Wilmington, NC 28401
William A. Castor, Chairman
New Hanover County Board of Commissioners
320 Chestnut Street, Room 305
Wilmington, NC 28401-4093
Martin Marietta Corporation
2710 Wycliff
Raleigh, NC 27607
Southdown, Inc. (formerly Dixie Cement Company, Inc.)
6212 Cement Plant Road
Knoxville, TN 37924
Upon receipt of the DENR's approval of the request for
implementation of a CAP based on natural attenuation processes, OxyChem will
notify the above parties of that decision within 30 days as required by 15A
NCAC 2L.0114(c).
6448(001) 28 CRA SERVICES

8.0 REFERENCES
Corrective Action Plan, OxyChem Castle Hayne Plant, Occidental Chemical
Corporation, Castle Hayne, New Hanover County, North Carolina, for
Continued Groundwater Remediation by Extraction and Treatment Under the
Provisions of 15A NCAC 2L.0106(c), CRA Services, April 1, 1998.
1997 Annual Groundwater Report, OxyChem Castle Hayne Plant, Occidental
Chemical Corporation, Castle Hayne, New Hanover County, North Carolina,
CRA Services, April 17,1998.
Ground Water Hydrology Studies, Re: Chromium Contamination, Castle
Hayne Plant, North Carolina, Diamond Shamrock Corporation, Dames &
Moore, June 1981.
Groundwater Assessment Final Report, Special Order by Consent,
Occidental Chemical Corporation Castle Hayne Plant, Castle Hayne, North
Carolina; Woodward -Clyde Consultants, January 1990.
Standard Guide for Risk -Based Corrective Action at Petroleum Release Sites,
.. ASTM E 1739-95, November 1995.
6448(001) 29 CRA SERVICES

DIVISION OF ENVIRONMENTAL MANAGEMENT
Certification for the Submittal of a Corrective Action Plan
Under 15A NCAC 2L .0106(I)
Responsible Party: OccSdantaI FhAmina, Fnr n a*
Address: 5408 Holly Shelter Road
City: Castle H a y n e State: N G Zip Code: 2 8 4 2 9
Site Name
OxyChem Castle Hayne Plant
Address: 5408 Holly Shelter Road
City, Castle HayneCounty: New Hanove lip Code: 28429
Groundwater Section Incident Number: N / n (Former SOC GW#93-ot )
I, James W. Hayman, PF, Pr, CPR. a Professional Engineer/Licensed Geologist (circle
one) for ERA Fnni naari nn. Tnr- irm o-r company o employment), do hereby
certify that the information indicated below is enclosed as part of the required Corrective Action
Plan (CAP) and that to the best of my knowledge the data, site assessments, engineering
plans and other associated materials are correct and accurate.
(Each item must be initialed by hand by the certifying licensed professional).
1._— A listing of the names and addresses of those individuals required to be noti-
fied to meet the notification requirements of 15A NCAC 2L .0114 (b) are
enclosed. Copies of letters and certified mail receipts are also enclosed. A
copy of the newspaper notice and the title of the newspaper(s) where it was
���������� published must be included, if applicable.
2.T��� _— A Professional Engineer or Licensed Geologist has prepared, reviewed, and
certified all applicable parts of the CAP in accordance with 15A NCAC 2L
.0103(e).
3. A site assessment is attached or on file with the appropriate Regional Office
which provides the information required by 15A NCAC 2L .0106(g).
4.A description of the proposed corrective action and supporting justification is
enclosed.
5. I A schedule for the implementation of the CAP is enclosed.
6. A monitoring plan is enclosed which has the capacity to evaluate the effec-
tiveness of the remedial activity and the movement of the contaminant
plume, and which meets the requirements of 15A NCAC 2L .0110 and
.0106(I).
7. The activity which resulted in the contamination incident is not permitted by
the State as defined in 15A NCAC 2L .0106(e).
(OVER)
GW-100(I) Rev. 7/95

In addition, the undersigned also certifies that to the best of my knowledge and professional
judgement and in accordance with the requirements of 15A NCAC 2L .0106(I), the following
determinations have been made and are documented in the CAP:
8.�Y�v all sources of contamination and free product have been removed or
��// controlled in accordance with 15A NCAC .0106(f) and (1).
(See guidance document).
9.� the contaminants have the capacity to degrade and attenuate under the
site -specific conditions.
10. the time and direction of contaminant travel can be predicted with reason-
able certainty.
11. the migration of the contaminant will not result in any violation of the
standards specified in 15A NCAC 2L .0202 at any existing or foreseeable
124�,•1�(1J receptor.
1 the contaminants have not and will not migrate onto adjacent properties,
�v or adjacent properties are served by public water supplies which cannot be
influenced by contaminants migrating off -site, or adjacent landowners have
consented in writing to a request allowing the contaminant upon their
property.
13. groundwater discharge of the contaminant plume to surface waters will not
result in a violation of 15A NCAC 28 .0200.
14. the area of the contaminant plume has not been identified by a state or local
government use planning process for resource development.
15. all necessary access agreements needed to monitor groundwater quality
77 have been or can be obtained.
(Please Affix Seal and Signature)
if Ccnscnt rejueSiW
NOTE. Any modifications made to this form may result in the return of your submittal.
GW-100(I) Rev. 7/95

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TABLE 1.4
SUMMARY OF MONITOR WELL GROUNDWATER
ELEVATIONS FOR 1997 AND 1998
UPPER AQUIFER
'�'� b N� I. �
n'khr � 4nF<`K•
�\'i:. x\i`..`.. b'N".::<:kkbY:RRJ�:¢1iwRj�A�:..:.:.. a�`:{CE.`k1��+.kbPkbLn
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19.24
21.11
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2.21
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2.09
1.80
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4.34
7.43
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2.12
2.39
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3.67
4.01
CPW-10S
4.18
4.18
CPW-12S
6.73
9.05
TABLE 1.5
SUMMARY OF MONITOR WELL GROUNDWATER
ELEVATIONS FOR 1997 AND 1998
LOWER AQUIFER
t U
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i�Jx3�y�xsunq
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1.59
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2.62
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3.85
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3.79
3.78
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6.93
8.21
6448(001)
CRA SERVICES

TABLE 2.1
Summary of Adjacent Property Use
and Property Owner Information
Industrial
Occidental Chemical Corporation
Occidental Chemical Corporation
P.O. Box 868
5408 Holly Shelter Road
Houston, Texas 77001
Castle Hayne, New Hanover Co., North Carolina
3242-29-5347
3242-48-1920
3242-18-7050
3242.063025
Industrial Martin Marietta Corporation
Martin Marietta Corporation P.O. Box 30013
6501 Holly Sheller Road Raleigh, North Carolina 27622
Castle Hayne, New Hanover Co., North Carolina
3242-66-8836
Industrial Dixie Cement Company, Inc.
Dixie Cement Company, Inc. P.O. Box 14009
6411 Ideal Cement Road Knoxville, Tennessee 37914
Castle Hayne, New Hanover Co., North Carolina
3243-70-7922 (Currently Southdown, Inc.)
Residential Emerson White
6125 Coon Hunters Trail 6125 Coon Hunter's Trail
Castle Hayne, New Hanover Co., North Carolina I Castle Hayne, North Carolina
Residential Catherine Nixon
6113 Coon Hunters Trail 6113 Coon Hunters Trail
Castle Hayne, New Hanover Co., North Carolina I Castle Hayne, North Carolina
Commercial
Atlas Concrete & Construction
Atlas Concrete & Construction
5125 Hwy 421 N
6116 Coon Hunters Trail
Wilmington, North Carolina 28401
Castle Hayne, New Hanover Co., North Carolina
Residential Charity Foreman
Coon Hunters Trail 1322 Wellington Avenue
Castle Hayne, North Carolina Wilmington, North Carolina 28401
6448(001)
1
CRA SERVICES

TABLE 2.1
Summary of Adjacent Property Use
and Property Owner Information
Residential
6027 Coon Hunter's Trail
Castle Hayne, New Hanover Co., North Carolina
Residential
6033 Coon Hunters Trail
Castle Hayne, New Hanover Co., North Carolina
Agricultural
Georgia Pacific Corporation
(Located across Northeast Cape Fear River)
Pander County, North Carolina
Lewis Nixon
P.O. Box 71
Castle Hayne, North Carolina 28429
Lewis Nixon
P.O. Box 71
Castle Hayne, North Carolina 28429
Georgia Pacific Corporation
P.O. Box 591
Emporia, Virginia 23847
6448(001)
CRA SERVICES

TABLE 2.2
Summary of COC Concentrations For
Northeast Cape Fear River
Surface Water Samples
(January 1997 through December 1997)
OxyChem - Castle Hayne Plant
Sample Location
.......
Chromium , :.i[Q
Ch
onde
......... .
'U.,
M, urn��
I ...... . ....
H
..M xtmUrW.-*,
(Standard Umts�
... ... ......
M
in morn
Up River
<0.005
1 57
1 24
12
.06
2.
M
Down River
<0.005
1 67
25
12
� .2,
H
Notes: 1). All concentrations expressed to no more than two significant figures.
2) <0.005 = Below method detection limft.
6448(001) 1 CRA SERVICES

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nxxxxxxnxVxxxxeHx�xw�x+�
----------
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MAP NO. /GRID NO. /PROPERTY NO. PROPERTY OWNER
(1)-3242/18/1750
OCCIDENTAL ELECTROCHEMICAL CORP.
(2)-3242/48/1920
OCCIDENTAL ELECTROCHEMICAL CORP.
(3)-3242/29/5347
OCCIDENTAL CHEMICAL CORP.
(4)-3242/06/3025
OCCIDENTAL CHEMICAL CORP.
(5)-3242/25/9686
EMERSON B. WHITE, MARY LIFE EST.
(6)-3242/25/5275
CATHERINE B NIXON, ET. AL.
(7>-3242/35/3445
ATLAS CONCRETE & CONSTRUCTION
r
a m
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(8)-3242/35/4131
CHARITY NIXON FOREMAN
z. N�
(9)-3242/24/7716
LEWIS T. NIXON
(10)-3242/24/9876
LEWIS T. NIXON
(11)-3242/13/7934
MARTIN MARIETTA CORP.
J@,
(12)-3242/23/P440
CEMETERY
(13)-3242/12/6731
UNICON CONCRETE, INC
(14)-3242/42/6854
F & W ENTERPRISE
(15)-3242/43/6312
F & W ENTERPRISE
O feet O
(16)-3243/50/8662
CASTLE HAYNE DEVELOPMENT INC.
�
(17)-3242/31/6279
OCCIDENTAL ELECTROCHEMICAL CORP.
SCALE
(18)-3242/66/8836
MARTIN MARIETTA CORP.
(19)-3242/83/6226
DIXIE CEMENT COMPANY, INC. (RR R/W)
(20>-3243/80/5377
CASTLE HAYNE DEVELOPMENT INC.
0
PRIVATE POTABLE WELL
PROPOSED MONITOR WELL CLUSTER
(UPPER AQUIFER AND LOWER AQUIFER)
LIMITS OF AFFECTED
CRA SERVICES M. LIFE 2124199 0 Y' = 600' 24896-01—B26 pp' OCCIDENTAL CHEMICAL CORP. GROUNDWATER AND 6.1
CRA ENGINEERING, INC. ♦/ CASTLE HAYNE, NORTH CAROLINA PROPOSED MONITORING
Drawn By Checked By Approved By Dote Rev. No. Scale _ Drawing No. WELL LOCATIONS Fig No.

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MAXIMUM -MEAN -MINIMUM PARAMETER CONCENTRATIONS
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NEW HANOVER COUNTY
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BNNER I MARTIN MARIETTA CORPDRATION BK/PS? I DEED BKIPB
CD-OWMR I i DEED ALTKEY
STREET I PO BOX 30013 1 DOR(NMDDYY)
ADDRESS I RALEIGH MC 27622-0013 EDIT? N i XURNERSHIP 100.00
I ) SUBDIVISION
SITUS 1 6501 HOLLY SHELTER RD I ACTIVITY
ADDRESS I CASTLE HAYNE TAX DISTRICT: FD 1 STATICMP A COMPLETE
1 SPECIAL : I BILLS TO MORTGAGE CO.
BILLING I I CODE:
ADDRESS I EDIT? I ACCT:
-----+-------- ----------------------+------------------- —
RELATIONi........... ID: JYR: RC:
RELATION2........... ID: JYR; RC:
ACTION: R SCREEN: NAME USERID: PUBL CHANGE -REASON:
------------------- PARCEL NAMEIADDRESS -------- —---- ------- ----------
JURISDICTIDN= NH YR= 98 RDLL= RP PARCEL= R00700-001-004-001 CU: NH
----+-------------------------- --------+-------------------------
SAMPLE 1 1600.. A PENNSYLVANIA........ AVE HW 123.. 1 EX (PIN) 3252-47-6420000
ADDRESS I WASHINGTON..... DC 20202..... USA EDIT? Y i ALTKEY 0003581
--------+-------------------- —----------- ------------------------------
INNER I CAMERON BRUCE B TRUSTEE DK/PS? I DEED BKIPS
CO-OWNR I I DEED ALTKEY
STREET 1 PO BOX 3649 +s+ I DOBl"DDYYi)
ADDRESS I WILMINSTOR MC 28406-0649 EDIT? N I %OWNERSHIP 100.00
I I SUBDIVISION
SITUS 1 0 HOLLY SHELTER RD I ACTIVITY
ADDRESS I WILMINSTON TAX DISTRICT: FD I STATICHP A COMPLETE
SPECIAL I I BILLS TO MORTGAGE CO.
BIL' MG I i CODE:
ADDRESS i EDIT? 1 ACCT:
--------+-----------------------------------------+-------------------------
RELATIONI........... ID: JYR: RC:
RELATION2........... I0: JYR: RG:

ACTION: R SCREEN: NAME USERID: PUBL CHARGE -REASON:
-------------------- PARCEL MAKE/ADDRESS ----- -------------- ----------------
JURISDICTION= MR YR= 48 RDLL= RP PARCEL= R01200-002-001-002 CU: NH
SAMPLE 1 1600.. A PENNSYLVANIA........ AVE RN 123.. 1 EX (PIN) 3252-14-2243000
ADDRESS I NASHINSION..... DC 202^2..... USA EDIT? Y I ALTKEY 0011312
ONNER 1 NC STATE OF BK/PG? I DEED BKIPG
CO-ONNR I C/O PEAL PROPERTY OFFICE I DEED ALTKEY
STREET 1 116 JDMES ST N i DOBIMMDDYYI
ADDRESS I RALEIGGH NC 27603-8003 EDIT? N i XDNNERSHIP 100.00
I 1 SUBDIVISION
SITUS 1 6209 HOLLY SHELTER RD 1 ACTIVITY
ADDRESS I CASTLE HA
YRE TAX DISTRICT: FD I STATICMP A COMPLETE
SPECIAL I 1 BILLS TO MORTGAGE CO.
BILLING I 1 CODE:
ADDRESS I EDIT? I ACCT.
---+---- ------ ----------- --------- ------------- ------------
RELATIGNI........... ID: JYR: RC:
REL4TION2........... AD: JYR: RC:
ACTION: R SCREEN: NAME USERID: PUBL CHANGE-REASDN:
---------- -- PARCEL NAME/ADDRESS ----- ----- ----------------
:lRISDICTIOK= NR YR= 48 RDLL= RP PARCEL= R01200 �02-004 G00 CU: MR
SAMPLE 1 1600.. A PENNSYLVANIA........ AVE NW 123.. 1 EX (PIN) 2252-23-2927000
ADDRESS I NASHINSTON..... DC 20202..... USA EDIT? Y I ALTKEY 1656206
ONMER I CAMERON BRUC'E B TRUSTEE BK/PG? I DEED SKIPS
CO-ONNR I I DEED ALTKEY
STREET I PO BOX 3644 1 DOBIMMDDYYI
ADDRESS 1 NILKINGTON NC 28406-0644 EDIT? N 1 XONMERSHTP 100.0
1 i SUBDIVISION
SITUS 1 0 HOLLY SHELTER RD I ACTIVITY
ADDRESS I CASTLE HAYNE TAX DISTRICT: FD I STATICKP A COMPLETE
- --- --------- -------- ------- --------+--------- ---------
SPECIAL I I BILLS TO MORTGAGE CO.
BILLING I I CODE:
ADDRESS I EDIT? I ACV, :
-----+------------- ------ --------+-------------- ------
RELATIONI........... ID: JYR: RC:
RELATION2........... ID: JYR: RC:
ACTION: R SCREEN: NAME USERID: PUBL CRANSE-REASON:
------------ PARCEL MAMEIADDRESS --- --- ------------ ----------- ---
JURISDICTIOM= NH YR= 49 RDLL= RP PARCEL= R006WO01-001-000 CU. KH
SAMPLE 1 1600.. A PENNSYLVANIA........ AVE NN 123.. 1 EX (PIN) 3242-24-5347000
ADDRESS I NASHINGTON..... DC 20202..... USA EDIT? Y I ALTKEY 0003484
OIKR I OCCIDENTAL CHEMICAL CDRP BK/PG? I DEED BK/PG
CO-ONNR I I DEED ALTKEY
STREET I PO BOX 863 1 DOBIMMDDYYI
ADDRESS I HOUSTON TX 77001-0268 EDIT? N I %O194WHIP 100.00
I I SUBDIVISION
SITUS 1540B HOLLY SHELTER RD I ACTIVITY
ADDRESS I CASTLE HAYM-c TAX DISTRICT: FD I STAT/CMP A CWLETE
-----------------------------------------------{---------------------
SPECIAL I I BILLS TD MORTGAGE CO.
BILLINS I I CODE:
ADDRESS i EDIT? i ACCT:
RELATIONI........... ID:
RELATION2........... ID:
JYR: RC:
JYR: RC:

ACTION: R SCREEN: NAME USERID: PURL CHAHSE_REASON_ --
------ ------ PARCEL MAMEIABDRESS -------------- --
---
JURISDICTION-- NH YR= 98 ROLL= RP PARCEL= R00600-001 02-000 CU: NH
SAMPLE 1 1600.. A PENNSYLVANIA........ AVE NW I23.. 1 EX SPIN) 3242-48-1920000
ADDRESS f WASHINGTON..... Be 20202..... USA EDIT? Y I ALTKEY 0003492
OWNER ! OCCIDENTAL £LECTROCHEM CORP BK/PG?
I DEED BK/P6
CD-OWRR ! PROPERTY TAX
I DEED ALTKEY
STREET I PO BOX 868 ttt
1 BOB(M4uui7YY1
ADDRESS I HOUSTON TX 77001-0663 EDIT? N
I XOWNERSHIP 100.00
I
I SUBDIVISION
SITUS 1 5300 CAPE FEAR RIVER ttt HE
I ACTIVITY
ADDRESS I CASTLE RAYNE TAX DISTRICT: FO
I STATIC P A COMPLETE
------% ---------------------------
SPECIAL f
! BILLS TO MORTGAGE CO.
BILLING f
i CODE:
ADDRESS 1 EDIT?
I ACCT:
-----+---------------- ------- -------------
RELATIONI........... ID:
JYR: RC:
RELATION2........... ID:
JYR: RC:
ACTION: R SCREEN: MANE USERID: PUBL
CHANGE -REASON:
-------------- PARCEL NAMEIADDRESS ----
-------- -----------------
JURISDICTION= NH YR= 98 ROLL= RP PARCEL= R0."500-003-001-000 CU: NH
---+------ ----------- —----- —----- -----+------- --------------
SANPLE 1 1600.. A PENNSYLVANIA........ AVE Md 123..
1 EX (PIN) 3242-18-7450000
ADDRESS I WASHINGTON..... Be 20202..... USA EDIT? Y
1 ALTKEY 0003290
---+—----- -------- ------------------ --+---------- -----------
OWNER I OCCIDENTAL ELECTROCHEM CORP BK/PG?
I DEED BK/PS
CO -OWNS I PROPERTY TAX
I DEED ALTKEY
STREET I PO BOX 068
1 DOB(MMDDYY)
ADDRESS I HOUSTON TX 77001-OB60 EDIT? N
1 %OWNERSHIP 100.00
I
1 SUBDIVISION
SITUS 1 5406 HOLLY SHELTER RD
I ACTIVITY
ADDRESS 1 CASTLE HAY1EE TAX DISTRICT: FD
! STAT/CMP A C04FLETE
SPECIAL I
I BILLS TO NDRTGA6E CO.
BILLING I
C_..
1 CODE:
ADDRESS I EDIT?
f ACCT.,
RELATIONI........... ID:
RELATIGN2........... ID:
JYR: RC:
JYR: RC:
ACTION: R SCREEN: MANE USERID: PUBL CHANGE -REASON:
---- ------ ---- PARCEL NANEIADDRESS ------ —--------- ------------------
JURTSDICTIDN= HH YR= 98 ROLL= RP PARCEL= R09500-003-002-000 CU: NH
— ------ — ------------------- ------ --------+--------
SAMPLE 1 1600.. A PENNSYLVAMIA........ AVE Nii 123.. 1 EX (PIH3 3242-06-3025000
ADDRESS I WAMINST04..... DC 20202..... USA EDIT? Y I ALTKEY 1850444
OWNER I OCCIDENTAL CHEMICAL CORP BKIPS? 1 DEED BK/PG
CO-OWNR f PROPERTY TAX I DEED ALTKEY
STREET I PO BOX 868 1 DOB(MMD)YY)
ADDRESS I HOUSTON TX 77001-0868 EDIT? N 1 %OWNERSHIP 100.00
I I SUBDIYISI➢N
SITUS 1 5408 HOLLY SHELTER RD ! ACTIVITY
ADDRESS I WILMINGTON TAX DISTRICT: FD I STAT/CMP A COMPLETE
SPECIAL 1 I BILLS TO MORTGAGE CO.
BILLING 1 I CODE:
ADDRESS I EDIT? I ACCT:
-----+--------------------------------------------+----------------------
RELATIONI........... ID: JYR: P.C.
P.ELATION2........... ID: JYR: RC:

ACTION: R SCREEN: NAME USERID, PURL CHANGE -REASON:
-------------------- PARCEL NAHE/ADDRESS --------------------------------------
JURISDICTION= NH YR= 98 ROLL= RP PARCEL= R01200-001-002-001 CU: NH
SAMPLE i 1600.. A PENNSYLVANIA........ AVE i1W 123.. 1 E- (PIN} 8242-25-9686000
ADDRESS I WASHINGTON..... ➢C 20200..... USA EDIT? Y 1 ALTY,EY 00i1240
OWNER '
WHITE EMERSON R NARY LIFE EST KIPS? I
DEED BK/PS
CO-OWNR I
1
DEED ALTKEY
STREET 16125
COON HUNTERS TRt I
➢OR(HMDDYY)
ADDRESS 1
CASTLE HAYNE NG 28427-6328 EDIT? Y 1
XOWNERSHIP 100.00
t
i
SUBDIVISION
SITUS I
6125 COON HUNTERS TRL I
ACTIVITY
ADDRESS I
CASTLE HAYNE TAX DISTRICT: PD i
STAT/CMP A COMPLETE
-------------------------------------------------------------------------------
SPECIAL I
I
BILLS TO MORTGAGE CO.
BILLING I
I
CODE:
ADDRESS i
EDIT? I
ACCT:
--------+----------------------------------------------------------------------
RELATIONI...........
ID:
JYR: RC:
RELATION2...........
ID:
JYR: RC:
ACTION: R SCREEN: NAME USERID: PURL CHANSE-REASON:
-------------------- PARCEL NAME/ADDRESS --------------------------------------
JURISDICTION= NH YR= 98 ROLL= RP PARCEL= R01200-001-004-000 CU: NH
SAMPLE 1 1600.. A PENNSYLVANIA........ AVE NW i23.. 1 EX (PIN) 3242-2-6275000
ADDRESS 1 WASHINGTON..... BE 20202..... USA EDIT? Y I ALTKEY 0011274
OWNER I
NIXON CATHERINE B ETAL BK/PG?
I DEED BK/PS
CO-OWNR I
I DEED ALTKEY
STREET 1
6113 CRON HUNTERS TRL
I DOB(MMDDYY}
ADDRESS I
CASTLE HAYNE HE 2B429-6328 EDIT? N
': '%OWNERSHIP 100.00
t
I SUBDIVISION
SITUS 1
6113 COON HUNTERS TRL
I ACTIVITY
ADDRESS 1
CASTLE HAYNE TAX DISTRICT: PD
I STAT/CMP A. COMPLETE
------------------------------------------------------------------------------
SPECIAL i
I BILLS TO MORTGAGE CO.
BILLING I
I CODE:
ADDRESS 1
EDIT?
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--------------------------------
RELATIDMi...........
ID:
JYR: RC:
RELATION2
....... .... ID:
JYR: RC:
ACTION: P. SCREEN: NAME USERTD: PUBL CHANSE-REASON:
-------------------- PARCEL NAME/ADDRESS --------------------------------------
JURISDICTIOII= NH YR= 98 ROLL= RP PARCEL= R01200-001-002-000 CU: NH
SAMPLE 1 1600.. A PENNSYLVANIA....:... AVE MIN 123.. 1 EX MH) 3242-35-3445000
ADDRESS 1 WAGNINGTON..... DC 20202..... USA EDIT? Y I ALTKEY 0011231
OWNER I ATLAS CONCRETE 8 CONSTRUCTION BK/PG? I DEED 3K/PG
CD-OWNR I INC I DEED ALTKEY
STREET 1 5125 421 HWY N I DOB(MMDDYY}
ADDRESS I WILMINGTON NC 28401 EDIT? Y 1 %.OWNERSHIP 100.00
i I SUBDIVISION
SITUS 1 bllb COON HUNTERS TRL I ACT VI
AODP,ESS I CASTLE HAYNE TAX DISTRICT: FD 1 STAT/CMP A COMPLETE
-------------------------------------------------------------------------------
SPECIAL I ! B'_L! S TO MORTGAGE CO,
PILLING I CODE:
ADDRESS i E➢IT? 1 ACCT:
RELATIONI........... ID: JYR: RC:
RELATION2.:.:......, IB: JYR: RC:

ACTION: R SCREEN: NAME USERID; PURL CHANSE-REASON:
------ ---------- PARCEL NAMEIADBRESS ----------- ---- ---------------------
JURISDICTION= NH YR= 98 POLL= RP PARCEL= R01200-001-002-002 CU: NH
---
----+------------------- --------------------- +-------------------------
(,. SAMPLE 1 1600.. A PENNSYLVANIA........ AVE NW 123.. 1 EX (PIN) 3242-35-4131000
ADDRESS I WASHINGTON..... DC 20202..... USA EDIT? Y 1 ALTKEY 0011258
--------+-----------------------------------------+------------------------
OWNER I FOREMAN CHARITY NIXON BK/PG? I DEED DKIPS
CO-ORNR I I DEED ALTKEY
STREET 1 1322 WELLINGTON AVE 1 DOB(MMDDYY)
ADDRESS I WILMINGTON NC 28401-7678 EDIT? Y 1 %OWNERSHIP 100.00
I i SUBDIVISION
SITUS 1 0 HOLLY SHELTER RD ) ACTIVITY
ADDRESS 1 WILMINGTON TAX DISTRICT: FD I STAT/CMP A COMPLETE
-------+----------------------------------------+-----------------------
SPECIAL I 1 BILLS TO MORTGAGE CO.
BILLING 1 I CODE;
ADDRESS I EDIT? I ACCT.,
-----+------------------- ---------------- +- ------------ -------
RELATIONI........... ID: JYR: RC:
RELATION2........... 10: JYR: RC:
ACTION: R SCREEN: PANE USERID: PURL CHAHSE-REASON:
------------ PARCEL NAME/ADDRESS
JURISDICTION= NH YR= 98 RDLL= RP PARCEL= RO0600-001-004-000 CU. HH
SAMPLE 1 1600.. A PENNSYLVANIA........ AVE NW 123.. 1 EX (PIN) 3242-66-BB36000
ADDRESS I WASHINGTON..... DC 20202..... USA EDIT? Y ( ALTKEY 0003514
DWHER I MARTIN MARIETTA CORP BK1PS? I DEED RK/PS
CD-ONNR 1 I DEED ALTKEY
STREET I PO BOX 20013 t}+ I BOB(MMDDYY)
ADDRESS 1 RALE.6 HNC 27622-0013 EDIT? M I %OWNERSHIP 100.00
1 I SUBDIVISION
SITUS 1 0 HOLLY SHELTER RD ) ACTIVITY
ADDRESS 1 WILMINGTON TAX DISTRICT; FD I STAT/CMP A COMPLETE
C SPECIAL I I BILLS TO MORTGAGE CO.
BILLING I I CODE:
ADDRESS i EDIT? I ACCT:
--------+----- ---------------------- ------+--------------- --
RELATIONI........... ID: JYR: RC:
RELATI9M2........... ID: JYR: RC:
ACTION: R SCREEN: MAKE USERID: PURL CHARGE -REASON:
----------------- PARCEL NAMEIADDRESS ------- ------------- -------------
JURISBICTION= MH YR= 98 RGLL= RP PARCEL= R01200-001-006-000 C1f: NH
SAMPLE 1 1600.. A PEENNSYLVANIA........ AVE NW 123.. 1 EX (PIN) 3242-95-2643000
ADDRESS 1 WASHINGTON..... DC 202,12..... USA EDIT? Y I ALTKEY 1656214
OWNER 1 PYLE ROBERT WILLIAM BK/PG? I DEED BK/PS
CO-OWNR I i DEED ALTKEY
STREET 1 4506 BEAN DR I DOB(MMBDYY)
ADDRESS I WILMINGTON MC 28405-2402 EDIT? Y 1 %OWNERSHIP 100.00
1 1 SUBDIVISION
SITUS 1 0 HOLLY SHELTER RD 1 ACTIVITY
ADDRESS I CASTLE PAYNE TAX DISTRICT: FD 1 STAT/CMP A COMPLETE
SPECIAL 1 I BILLS TO MORTGAGE [D-
RILLING I I CODE:
ADDRESS I EDIT? I ACCT:
--------+------------------- ---------------- -----+----------------------
RELATIONi........... ID: JYR: RC:
RELATIUM2........... ID: JYR: RC;

ACTION; R SCREEN; RARE USERID: PL!BL CHA1;GE-R'A,OII:
-------------------- PARCEL NAME/ADDRESS ------------------------------------
3URISDICTION= NH YR= 9B ROLL= RP PARCEL= R01200-002-DOS-000 CU: NH
SAMPLE 1 16D0.. A PENNSYLVANIA:,..,,,, AVE HH 123„ 1 EX (PIN) 3242 53-0395000
ADDRESS 1 WASHliNGTON..... DC 20202..,,, USA EDIT? Y 1 ALTKEY 3300B15
OWNER I APAC-CAROLINA INC BKIPG? 1 DEED SKIPS
CO-OWNR I I DEED ALTKEY
STREET 1 PO BOX 399 1 DOB(MMDDYY)
ADDRESS 1 KINSTON NC 28502-0399 EDIT? N I X aI.ERSHI. i00,00
1 1 SUBDIVISION
SITUG 1 5630 HOLLY SHELTER RD I ACTIVITY
ADDRESS 1 CASTLE MAYNE TAX DISTRICT: tD ( STATiCMP A COMPLETE
SPECIAL I i BILLS TO MORTGAGE CO..
BILLING I I CODE:
ADDRESS 1 EDIT? I ACCT:
- - ----+-------------------------------------------- +-----------------------
RELATIDNI.,......... ID: 7YR: RC:
RELATION2.... ,...... ID: JYR: RC:
ACTION: R SCREEN: NAME USERID: PURL CHANGE -REASON-
-------------------- PARCEL NAHE/ADDRESS --------------------------------------
JURISDICTION= NH YR= 9? ROLL= RP PARCEL= R01200-002-1101-003 CU: NH
--------+-------------------------------------------+-------------------------
SAMPLE 1 1600.. A PENNSYLVANIA..,:,,,, AVE NW 123., 1 EX (PIN) 3242-52-4703000
ADDRESS 1 WASHINGTDN.. — DC 20202..... USA EDIT? Y I ALTKEY 1454671
--------+--------------------------------------------+-------------------------
"uWMER 1 SEABOARD DEVELOPMENT GROUP SKIPS? I DEED BKIPG
CD-OWI1R 1 1 DEED ALTKEY
STREET 17002 WRIGHTSVILLE AVE 1 DO8(MMDDYYI
ADDRESS i WILMINGTON NC 20403 EDIT? Y 1 %OWNERSHIP 100.00
I 1 SUBDIVISION
SITUS 1 D HOLLY SHELTER RD I ACTIVITY
ADDRESS i CASTLE MAYNE TAX DISTRICT- PD 1 STATICMP A COMPLETE
--------+----------------------------------------------------------------------
SPECIAL I I BILLS TO MORTGAGE CD,
BILLING i I CODE:
ADDRESS 1 EDIT? I ACCT:
--------+--------------------------------------------+-------------------------
R-eLATIDNi..,........ ID: 7YR: RC:
RELATION2..... ...... ID: 3YR: RC;
ACTION: R SCREEN: NAME L!SERID- FURL CH411BE-REASO4:
-------------------- PARCEL NAME/ADDRESS -------------------------------------
bURISDICTIDN= MR. YR= 98 ROLL= RP PARCEL= R0i200-002-001-000 CU: HH
SAMPLE 1 1600,. A PENNSYLVANIA,,,..,.. AVE 4MW 123,. 1 EX (PIN) 3242-B2-0755000
ADDRESS I WASHINGTON— — DC 20202..... USA EDIT? Y I ALTKEY 0011291
OWNER I CAMERON BRUCE B TRUSTEE BKYPG? I DEED BKtPG
CO-OWNR 1 1 DEED ALTKEY
STREET I PO BOX 3649 1 DOB(MMDDYYI
ADDRESS I WILMINGTON HC 28406-0649 EDIT? N I ",OWNERSHIP 100.00
I I SUBDIVISION
SITUS 1 0 HOLLY SHELTER RD I ACTIVITY
ADDRESS 1 CASTLE HAYNE TAX DISTRICT: TD 1 STATfCMP A COMPLETE
SPECIAL !. I DILLS TO MORTGAGE CO.
STLLING 1 1 CODE;
ADDRESS 1 EDIT? 1 ACCT;
--------+--------------------------------------------+----------------------
RELATiONl.,,.,..,.,. ID: ?Y"n: RC:
RELATION2.........., ID, JYR: cr

ACTION: R SCREEN. NAME USERID: PUBL CHAN"uE REASON;
-------------------- PARCEL NAME/ADDRESS --------------------------------------
JURISDICTION= N4 VP,= 99 ROLL= RP PARCEL= R01200-00I-001-000 CU: 11.9
--------+--------------------------------------------+-------------------------
L A �. 1 A "AAVENW 2 , ! (PIN, 32u P4 A ^ 00
SAMP t� :,. 7,_ .. 1 3 E<'. !.I:,. 2-_.= .4.0„t
ADDRESS I WASHINGTON..... DC 20202..... USA EDIT? Y ) ALTKEY 0011223 f
--------+--------------------------------------------+-------------------------
OWNER 1 CEMETERY BK/PG? I DEED Br/PG
C0-OWNR i ! DEED ALTKEY
STREET 1 0 *14 }} ! DOB(MMDDYY)
ADDRESS I }+ 00000 EQIT? N I %OWNERSHIP 100.00
i I SUBDIVISION
SITUS 1 5300 HOLLY SHELTER RD I ACTIVITY
ADDRESS I WILMINGTON TAX DISTRICT: FB ! STAT/CMP A COMPLETE
SPECIAL 1 ! BILLS TO MORTSAGE CO.
BILLING ) I CODE:
ADDRESS I EDIT? I ACCT:
--------+--------------------------------------------+----------------------
RELATIONI........:.. ID: JYR: RC:
RELATION2........... ID: JYR: RC:
ACTION: R. SCREEN: NAME USERID- PURL CHANGE -REASON:
-------------------- PARCEL HAME/ADDRESS --------------------------------------
JURISDICTIO!1= NH YR= 9$ ROLL= RP PARCEL= RO1100-00$-011-DOb CU: NH
--------t----=---------------------------------------+-------------------------
SAMPLE 1 1600.. A PENNSYLVANIA........ AVE NN 123.. ! EX (PIN) 3242-12-6731000
ADDRESS I WASHINSTD%.... DC 20202..... USA EDIT? Y 1 ALTKEY 1060770
OWNER I L!NICON CONCRETE INC BY./PO? I DEED BKIPG
CO-OWNR I ATT:BOBSY STEELE I DEED ALTKEY
STREET 1 2511 BIB SLOGK RD I DO$(NMDDYY)
ADDRESS ! MYRTLE BEACH SC 29575-6713 EDIT? N I %OWNERSHIP 100.00
i I SUBDIVISION
SITUS 15225 HOLLY SHELTER RD I ACTIVITY
ADDRESS 1 WILMINSTON TAX DISTRICT: FD I STAT/CMP A COMPLETE
--------+--------------------------------------------+----------------------
SPECIAL I ! BILLS TO MORTSASE CO.
BILLING I I CODE:
ADDRESS I EDIT? i ACCT;
RELATIONI........... ID:
RELATIGN2...... ..... ID.
JYR: RC:
JYR' RC:
ACTION: R SCREEN: NAME USERID: FURL CHANGE -REASON:
------------------- PARCEL NAME/ADDRESS -------------------------------------
JURISDICTION= NH YR= 99 ROLL= RP PARCEL= ROIROO-001-005-000 CU: 1:4
SAMPLE I ILOO.. A PENNSYLVANIA—...... AVE NW 123.. I EX (PIN) 3242-24-7716000
ADDRESS I WASHINGTON..... DC 20202..... USA EDIT? Y 1 ALTKEY 0011262
OWNER !
NIXON LEWIS T SKIPS? f
DEED BK/F6
CO O'dHR 1
I
DEED ALTKEY
STREET !
PO BOX 71 1
DOBIMMODYY)
ADDRESS i
CASTLE 4AYIE NC ?$429-4071 EDIT? ?:' 1
%OWNERSHIP 100.0.0
I1
SUBDIVISION
SITUS !
61027 COON HUNTERS TRL 1
ACTIVITY
ADDRESS I
CASTLE RAYNE TAX DISTRICT: FD I
STAT/CMP A COMPLETE
--------+--------------------------------------------+----------------------
SPECIAL 1
!
BILLS TO MORTGAGE CO.
BILLING I
I
CODE:
ADDRESS )
EDIT? 1
ACCT:
--------`--------------------------------------------+----------------------
RELATIONi...........
I➢:
JYR: RC:
RELATI➢N2
.... ID:
JYR: RC:

ACTION: R SCREEN: NAME USERID: PUBL CHANGE -REASON;
-------------------- PARCEL NAME/ADDRESS --------------------------------------
JURISDICTION= NH YR= 9S ROLL= RP PARCEL= R01"e00 A:?f-;;03-qD( CU: NH
--------+------------------------- -
SAMPLE :i 1600.. A PENNSYLVANIA...... .. AVE NW 123.. 1 EX (PIN) 3242-24-957.000
r" ADDRESS 1 WASHINGTON- _ DC 20202..:.. LISA EDIT-, Y I ALTKEY 0011266
--------+--------------------------------------------+-------------------------
OWNER ( NI..0 LEWIS 7 BK1P6? I DEED BK/PB
C(I-OWNR 1 1 DEED ALTKEY
STREET I PO BOX 71 1 BDB(MNDDYY)
ADDRESS ! CASTLE HAYNE NC 28424-0071 EDIT? H 1 „OWNERSHIP 100,00
I I SUBDIVISION
SITUS ( 6033 COON HUNTERS TRL I ACTIVITY
ADDRESS 1 CASTLE HAYNE TAX DISTRICT: FD ( STATiCMP A COMPLETE
--------+--------------------------------------------+-------------- -
SPECIAL I I BILLS TO MORTGAGE Cl -
BILLING I I CODE;
ADDRESS I EDIT? i ACCT:
--------+--------------------------------------------+-------------------------
RELATIGNI........... ID: JYR: RC.
RELATION2..... ..... . ID: JYR; Rp.
ACTION. R SCREEN: NAME L!SERID; PUBL CHANSE-REASDN.
-------------------- PARCEL NAME/ADDRESS --------------------------------------
J!JRISDICTION= NH YR= 40 ROLL= RP PARCEL= R01200-002-006-000 CU. NH
--------+--------------------------------------------+-------------------------
SAMPLE 1 1600.. A PENNSYLVANIA........ AVE Nk 123:. I EX (PIN) 3242-43-6312000
ADDRESS I WASHINGTON..... DC 20202..... USA EDIT? Y 1 ALTKEY 4485733
OWNER I F i W ENTERPRISES DK/PS? I DEED BKIPS
CO-OWN.R I I DEED ALTKEY
STREET 1 1603 MARKET ST 1 DOD(MMDDYY)
ADDRESS ( 41LHTNSTON NC 28401-4453 EDIT? Y 1 XGWNERSHIP 100.00
I I SUBDIVISION FANDWE
SITUS 1561B HOLLY SHELTER RD LTIA I ACTIVITY
ADDRESS I CASTLE HAYNE TAX DISTRICT: FD 1 STATICMP A COMPLETE
-------------
SPECIAL I ! BILLS TO MORTGAGE CO.
BILLING ( I CODE;
ADDRESS I EDIT? I ACCT:
--------+--------------------------------------------+----------------------
RELATIONI........... ID: JYR: RC;
RELATION2....... .... ID: JYR. RC:
ACTION; R SCREEN'* NAME USERID: PURL CHANSE-REASON;
-------------------- PARCEL NAME/ADDRESS --------------------------------------
J!JRISDICTION= NH YR= 48 ROLL= RP PARCEL= R01200-002-001-001 CU: MH
--------+---------------
SAMPLE 1 IWO.. A PENMSYLVANIA........ AVE NW 123.. 1 EX (PIN) 3242-42-6954000
ADDRESS 1 WASHINGTON..... DC 202031.... LISA EDIT? Y I ALTKEY 0011304
--------+--------------------------------------
OWNER 1 F ° W ENTERPRISES BKiPS? I DEED BK/PS
CO-OWNR i 1 DEED ALTKEY
STREET 1 1608 MARKET ST I DOWINDDYY)
ADDRESS I WiLMINS"TON NC 2R401-4553 EDIT? Y I %OWNERSHIP !A Oa
I ) SUBDIVISION
SINS 1 5600 HOLLY SHELTER RD LT2 1 AC'WITY
ADDRESS 1 CASTLE HAYNE TAX DISTRICT; FD 1 STATIEMP A COMPLETE
SPECIAL 1 1 BILLS TO MORTGAGE CD.
BILLING I 1 CODE.
ADDRESS I EDIT? 1 ACST:
--------+-------------------------------------- -
RELATIDNI-- ....... ID. JYR; RC.
RELATIOH2..... ,..... I9: JYR: RC.

I ACTION: R SCREEN: MADE USERID: PURL CHANGE -REASON:
----- —---------- -- PARCEL NAME/ADDRESS --------------------------------------
JURISDICTION= NH YR= 9.3 ROLL= RP PARCEL= 00,100-067-001-042• CO; NN
(I--- - --+----------------------- - ------ --- -------}---------- ----- -------
SAMPLE I MO.. A PENNSYLVANIA........ AVE NM 123., 1 EX MN) 3232-834226040
ADDRESS I WASHINGTON..... DC 2020?..... U64 EDIT? Y 1 ALTKEY 0006211
OWNER I DIXIE CEMENT CO INC SKIM t DEED MPG
CD-OMFR ! 1 SEED ALTKEY
STREET I PC BOX 14009 M I BDBIMNDDYYI
ADDRESS I KNOXVILLE TR 37914-M9 EDIT? N 1 %DMNERMIP 100.00
I I SUBMISIDN
SITES 1 6411 IDEAL CEMENT RD I ACTIVITY
ADDRESS t CASTLE BAYN TAX Di5TRICT: FD I STAT!£FP A COMPLETE
I SPECIAL I I BILLS TO MORTSASE CO.
BILLING I 1 CUBE:
ADDRESS I EDIT? 1 ACCT:
--------------------- ----------- ----------------+-------------------------
RELATIONI..... ...... ID: JYR: RC:
RELATION2........... ID: JYR: "nC:
ACTION: R SCREEN: NAPE USERID: PURL r
HAM-E--SUM:
�----------- ------- PARCEL NAME/ADDRESS -------------- —---- —-------------- —
JURISDICTION= MH YR= 93 ROLE= RP PARCEL= R01100-007-442-300 CO. NH
--------+------------------- --------------------- 4--------- --------------
1 SAMPLE 1 1600.. A PENNSYLVANI4........ AVE HM 123.. 1 EX (PIN) 3232-72-9517000
ADDRESS 194SOINSTON..... DC 20202..... USA EDIT? Y I ALTKEY 0006220
------ —------------- -------- —-------
OMNER 1 SHOULDER BRANCH BAPTIST MFG? I DEED BKIP6
CO-DMNR I CHURCH CEPETERY I DEED ALTKEY
STREET 1 PO BOX 144 1 DOBIC'fMY)
ADDRESS 1 CASTLE HAYME HC "EM EDIT? N I XONNERSHIP 100.00
1 I SUBDIVISION
SITUS 1 4905 HOLLY SHELTER RD i ACTIVITY
ADDRESS 1 CASTLE PAYNE TAX DISTRICT: FD 1 STATICHP A COMPLETE
---------- --------------- -------------------- +--------------------- ----
SPECIAL I I BILLS TO MORTGAGE CO.
BILLING I I CODE;
ADDRESS I EDIT? I ACCT:
--------+ ---------------------------------+-----------------------
RELATIDHI........... ID; JYR: RC:
RELATION2........... ID: JYR: RC.
I
ACTION: R SCREEN: NAIL USERID: PURL CHAPSE-RE4.SDM:
------------------ PARCEL NAM_EIADDREaSS --------------------------------------
JURISDICTION= NH YR= 98 ROLL= RP PARCEL= R01100-006-035-000 Co. NH
SAMPLE t 1600.. A PENNSYLVANIA........ AVE NW 123.. I EX IPINI 3232-54-0047044
ADDRESS I WASH:INGTON..... DC 20202..... USA EDIT? Y I ALTKEY . 2569411
--------+----------------------------------------- +-------------------------
OWNER I SUGAR -FARM i878I INC ;SIPS?---i BEER BKtPfi
CO-OMNR 1 I DEED ALTKEY
STREET 1453 BLOSSOM FERRY RD t DOBIMMBDYYI
ADDRESS 1 CASTPAYNE NC 28429-5529'EDIT? Y 1 %DMRERSHiP 144.00
I SUBDIVISION
SIT
US 1 469 BLOSSOM FERRY RD 3 I ACTIVITY
ADDRESS I MILMIN6TON TAX DISTRICT: FD I STATICHP A Cr LE,TC
SPECIAL I I BILLS TD NORTGAGE CO.
BILLING 1 1 CODE:
ADDRESS I EDIT? I AM:
--------+-------------------------------------------------------------------
RELATIONI........... ID: JYR: P.C.
REL.vTIDM2........... iD: JYR: ^nC.

ACTION. R SCREEN: NAME USERID: PURL CHAMSE-REASDN:
-------------------- PARCEL MARE/ADDRESS --------------------------------------
JURISDICTION= MH YR= 9B ROLL= RP PARCEL= R01213-004-004-000 CU; NH
--------+--------------------------------------------+-------------------------
SAMPLE 1 1600.. A PENNSYLVANIA........ AVE MW 123,. 1 EX (PIN) 3242-20-2037000
ADDRESS I WASHINGTON..... DC 20202... ,. USA EDIT? Y 1 ALTKEY 0011801
/ --------+--------------------------------------------+-------------------------
\ cWNER I RAIL FLDYD RAY MARY M BKIPO? i DEED BK/PS
CO-OWNR I I DEED ALTKEY
STREET 1 5608 BLUE CLAY RD ( DDB(MMDDYY}
ADDRESS I CASTLE RAYNE MC 28429-63DB EDIT? Y I .%'OWNERSHIP 100,00
1 1 SUBDIVISION HIGHLA
SIT'rS 1560E BLUE CLAY RD I ACTIVITY
I ADDRESS 1 CASTLE RAYNE TAX DISTRICT: FD i STAT/CMP A COMPLETE
-------+--------------------------------------------+-------------------------
SPECIAL i 1 BILLS TO MORTGAGE CO,
BILLING ( I CODE:
ADDRESS I EDIT? I ACCT.
--------+--------------------------------------------+-------------------------
R'tLATiDN2,.......,.. TD: JYR: RC:
RELATION2.,......... ID: JYR; RC:
ACTION: R SCREEN: MANE USERID: PUBL CHANGE -REASON.
'------- ------------ PARCEL NAME/ADDRESS --------------------------------------
JURISDICTION= MR YR= 98 ROLL= RP PARCEL= R01200-002-002-000 CU: NH
------ -+-------------------- ---------------------+-------------------------
SAMPLE 1 1600.. A PENNSYLVANIA........ AVE NW 123.. 1 EX (PIN) 324231-6279000
ADDRESS I WASHINGTON..... DC 20202..... USA EDIT? Y I ALTKEY 0011321
--------+--------------------------------------------+-------------------------
OWNER I OCCIDENTAL ELECTROCHEM CORP BK/PS? ) DEED BK/PB
I CO-OWNR ( PROPERTY TAX 1 DEED ALTKEY
STREET 1 PO BOX 868 *41 1 DOB(MMDDYY)
ADDRESS I HOUSTON TX 77001-0868 EDIT? H 1 %OWNERSHIP 100.00
I 1 SUBDIVISION
SITUS 1 0 HOLLY SHELTER RD I ACTIVITY
ADDRESS I CASTLE RAYNE TAX DISTRICT: FD I STAT/CMP A COMPLETE
------+---------- —-------------- —------------ ---+------------------------
SPECIAL 1 1 BILLS TO MORTGAGE CO.
BILLING I I CODE:
ADDRESS ( EDIT? I ACCT•
-------+--------------------------------------------+-------------------------
R-eLATIDNi..,....,... ID; 'JYR- RC:
RELATION2........... I0: JYR: RC:
( ACTIOM: R SCREEN: NAME USERID: PUBL CHANGE -REASON:
I -------------------- PARCEL NAME/ADDRESS --------------------------------------
JURISDICTION= MR YR= 93 ROLL= RP PARCEL= R01200-002-002-002 CU: NH
-------}----------------------------------------------------------------------
SAMPLE 1 1600,. A PENNSYLVANIA........ AVE HN 123.. 1 EX WIN) 3242-42-7011000
ADDRESS I WASHINGTOM..... DC 20202..... USA EDIT? Y 1 ALTKEY 1570931
--------+--------------------------------------------+-------------------------
OWNER I NEW HAN CNTY LAW ENFORCEMENT SKIPS? 1 DEED DKIPG
CO-OWNR I OFFICERS ASSOC I DEED ALTKEY
STREEI 1 20 4TH ST N I DOB(MMODYY)
ADDRESS ) WILMINSION NC 20.401 EDIT? Y I %OWNERSHIP 100,00
I 1 SUBDIVISION
SITUS 15301 HOLLY SHELTER RD i ACTIVITY
i ADDRESS 1 CASTLE RAYNE TAX DISTRICT: FD I SIAT/CMP A COMPLETE
--------+--------------------------------------------+-------------------------
SPECIAL I I BILLS TO MORTGAGE CO.
BILLING I I CODE:
f ADDRESS I EDIT? I A T;
-- - --+----------------------------------------------------------------------
RELATi0M1.,..,.,,... !D; JYR: RC:
I RELATIOM2........... ID: JYR; RC:

APPENDIX C
PENDER COUNTY PROPERTY TAX RECORDS

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APPENDIX D
NEW HANOVER COUNTY
ZONING MAPS AND DESCRIPTIONS

ij PLANNING MAP
'F NEW HANOVER COUNTY
NORTH CAROLINA

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' NORTH CAROLINA s W «
Qii

ARTICLE IV NON -CONFORMING SITUATIONS
`. Section 40 General
40-1 After the effective date of this Ordinance, land or structures, or the uses of
land or structures which would be prohibited under the regulations for the'
district in which it is located and which were existing prior to the effective
date of this ordinance shall be considered as non -conforming.. It is the intent
of this ordinance to permit these non -conformities to continue until they are
removed, but not to encourage their continual use. Non -conforming structures
or uses may be continued provided they conform to the provisions of this
ordinance. (9/7/76)
Section 41 Definitions
41-1 Unless the context clearly indicates otherwise, the terms defined below are
used in this Article in the following manner:
(1) Non -Conforming Situation - A situation that occurs when, on the effective
date of this Ordinance or any amendment hereto, an existing lot or
structure, or use of an existing lot or structure does not conform to one
or more of the regulations applicable to the district in which the lot or
structure is located.
(2) Non -Conforming Lot - A lot existing at the effective date of this
Ordinance or any amendment hereto that cannot meet the minimum lot area
requirements of the district in which the lot is located.
(3) Non -Conforming Use - A non -conforming situation occurs when property is
used for a purpose or in a manner made unlawful by the permitted use
regulations applicable to the district in which the property is located.
(4) Non-Conformina Building or Structure IniMensional Non -Conformity) A
non -conforming situation that occurs when the height, size or minimum
floor space of a building or the relationship between an existing building
and the required yard setbacks does not conform to the regulations
applicable to the district in which the property is located.
(5) Non-Conformina Project - Any structure, development or undertaking that is
incomplete at the effective date of this ordinance and would be
inconsistent with any regulation applicable to the district in which it is
located if completed as proposed or planned. (9/7/76)
Section 42 Use of Undeveloped Non -Conforming Lots
42-1 Non -Conforming Single tot of Record - A vacant lot of record established prior
to the effective date of this Ordinance which does not conform to the minimum
lot requirement of the district in which it is located may be used as a
building site for a use permitted within that district provided:
(1) All construction' and the location of the building(s) shall be in
accordance with the applicable front, side and rear yard requirements of
the zoning district in which located.
(2) The existing or proposed water and sewage disposal system is approved by
the New Hanover county Health Department. (9/7/76)
42-2 Non-Conformina Vacant Contiguous Lots of Record - If two or more adjoining and
vacant lots of record containing less than 100 feet in total width and less
than 20,000 square feet in total area are in single ownership at any time after
the adoption of this ordinance, such lots shall be considered as a single or
several lots which meet the minimum requirements of this ordinance for the
ART IV-1

zoning district in which such lots are located. (9/3/96)
r ..Section 43 Completion of Non -Conforming Projects
1
43-1 The, -construction or -erection of any non -conforming project. may be completed
provided:
(2) All construction is done pursuant to a validly issued building permit.
(9/7/76)
44-1 Except as specifically provided in this Section, it shall be unlawful for any
person to engage in any activity that causes an increase in the extent of non-
conformity of a non -conforming situation.
44-2 Subject to paragraph 44-4 of this Section, a non -conforming use may be extended
throughout any portion of a completed building that,when the use was made non-
conforming by this Ordinance, was manifestly designed or arranged to
accommodate such uses. However, subject to Section 43 of this Ordinance, a
non -conforming use may not be extended to additional buildings or to land
outside the original building.
44-3 Subject to Section 43 of this Ordinance, a non -conforming use of open land may
not be extended to cover more land than was occupied by that use when it became
non -conforming, except that a use that involves the removal of natural
materials from the lot (e. g., a quarry) may be expanded to the boundaries of
the lot where the use was established at the time it became non -conforming, if
ten (10) percent or more of the earth products had already been removed at the
active date of this Ordinance.
44-4 Where a non -conforming situation exists the equipment or processes may be
changed if these or similar changes amount only to changes in degree of ivity
rather than changes in kind and no violations of other paragraphs of this
section occur.
44-5 Physical alteration of structures or the placement of new structures on open
land are unlawful if they result in:
(1) An increase in the total amount of space devoted to a non -conforming use;
or
(2) Greater non -conformity with respect to dimensional restrictions such as
yard requirements, height limitations, or density requirements.
44-6 Minor repairs to and routine maintenance of 'property where non -conforming
situations exist are permitted and encouraged.
44-7 Notwithstanding paragraph 44-5, any structure used for single family
residential purposes and maintained as a non -conforming use or structure may be
enlarged or replaced with a similar structure of a larger size, so long as the
enlargement or replacement does not create new non -conformities or increase the
extent of existing non -conformities with respect to yard size and setback
requirements. In particular, a mobile home may be replaced with a larger
mobile home, and a "single -wide" mobile home may be replaced with a "double -
wide". This paragraph is subject to the limitations stated in Section 46 -
Abandonment and Discontinuance of Non -conforming Situations.
44-6 A structure that is non -conforming in any respect or a structure that is used
ART IV-2

in a non -conforming manner may be reconstructed or replaced if partially or
totally destroyed, subject to the following restrictions:
(1). A letter of intent is received by the Building Inspector within six (6)
months from the time of such destruction.
(2) A building permit is obtained from the Building Inspector within one (2)
year from the time the damage or destruction took place.
(3) The total amount of space devoted to a non -conforming use may not .be
increased, except that a larger, single family residential structure may
be constructed in place of a smaller one and a larger mobile home intended
for residential use may replace a smaller one.
(4) The reconstructed building may not be more non -conforming with respect to
dimensional restrictions such as yard requirements, height limitations or
density requirements, and such dimensional non -conformities must be
eliminated if that can reasonably be accomplished without unduly burdening
the reconstruction process or limiting the right to continue the non-
conforming use of such building. (9/7/76)
Section 45 change in Kind of Non -Conforming Use
45-1 A non -conforming use may be changed to a conforming use. Thereafter, the
property may not revert to a non -conforming use.
45-2 A non -conforming use may be changed to another non -conforming use only in
accordance with approval issued by the Board of Adjustment. The Board shall
issue such approval if it finds that the proposed use will be more compatible
with the surrounding neighborhood than the use in operation at the time the
approval is applied for. If a non -conforming use is changed to any use other
than a conforming use without obtaining approval pursuant to this paragraph,
that change shall constitute a discontinuance of the non -conforming use, and
the property involved may thereafter be used only for conforming purposes.
(8/2/82)(8/8/94)
45-2.1 A non -conforming accessory use or building may only be changed to another
non -conforming accessory use or building according to Section 4S-2 of this
Ordinance. changes in a principal use are also considered as changes to any
accessory use or building. (9/12/83)
45-3 If a non -conforming use and a conforming use, or any combination of a
conforming and non -conforming uses, or any combination of non -conforming uses
exist in one (1) lot, the use made of the property may be changed substantially
(except to a conforming use), only in accordance with approval issued by the
Board of Adjustment. The Board shall issue such approval if it finds that the
proposed use will be more compatible with the surrounding neighborhood than the
use or combination of uses in operationat the time the approval is applied
for. (9/7/76)
45-4 A use listed as permitted use in the Tabulation of Permitted Uses may be
established as a new use in any existing non -conforming building provided such
use complies with all off-street parking requirements of this Ordinance.
(3/2/81)
ART IV-3

46-1 When a non -conforming use is discontinued for a consecutive period of one
hundred eighty (180) days, the property involved may thereafter be used only
.for conforming purposes..(8/17/81)
46-2 For purposes of determining whether a right to continue a non -conforming
situation is lost pursuant to this Section, all of the buildings, activities
and operations maintained on a lot are generally to be considered as a whole.
For example, the failure to rent one (1) apartment in a non -conforming
apartment building or one (1) space in a non -conforming mobile home park for
one hundred eighty (180) days shall not result in the loss of the right to rent
that apartment or space thereafter so long as the apartment building or mobile
home park as a whole is continuously maintained. But if a non -conforming use
is maintained in conjunction with a conforming use, discontinuance of a non-
conforming use for the required period shall terminate the right to maintain it
thereafter. And so, if a mobile home is used as a non -conforming use on
residential lot where a conforming residential structure also is located,
removal of that mobile home for one hundred eighty (180) days terminates the
right to replace it. (11/21/81)
46-3 When a structure or operation made non -conforming by this ordinance is vacant
or discontinued at the effective date of this Ordinance, the one hundred eighty
(180) day period for purposes of this Section, begins to run at the effective
date of this Ordinance. (11/21/81)
ART IV-4

ARTICLE V. DISTRICT
Section 50 Fstablis nt of Use District
50-1 For the purposes of this ordinance, portions of the unincorporated area of
New Hanover County are hereby divided into the following districts:
(1) R-20S Residential District (12/7/81)
(2) R-20 Residential District
(3) R-15 Residential District
(4) -R-10 Residential District
(5) PD Planned Development District (8/20/84)
(6) B-1 Business District
(7) B-2 Business District
(a) I-1 Industrial District
(9) I-2 Industrial District
(10) Shopping Center District
(11) 0 & I Office and Institutional District
(12) AR Airport Residential District (10/4/76)
(13) AI Airport Industrial District (10/4/76)
(14) COD Conservation Overlay District (12/1/84)
(15) RA Rural Agricultural District (07/01/85)
(16) SHOD Special Highway Overlay District (12/3/86)
50-2 Tabulation of Permitted Uses - Within the various zoning districts as
indicated on the Official Zoning Map, New Hanover County, North Carolina, and
subject to all requirements and conditions specified in this Ordinance;
land, buildings, and structures may only be used and buildings and structures
may only be erected which are intended or designed to be used for uses listed
in the Table of Permitted Uses. In the appropriate columns of the following
table, permitted uses in the various districts are indicated by a "P" while
uses permitted only as a Special Use subject to the provisions of Section 72
are indicated by an "S". (1/5/81)
{/ 50-3 Conditional Use DigClassifications (1/2/90)
'\ All existing zoning districts, except PD, Planned Development, and SC,
Shopping Center, shall also be designated CD, Conditional Use Districts, as
established by the County Commissioners. Each new Conditional Use District
is considered a separate zone and is not mapped until a Conditional Use
District rezoning and Special Use Permit has been issued. All Conditional
Use Districts shall be indicated by CD followed by the general zoning
district classification, as follows:
Conditional Use Districts
CD(R-20S) CD(RA) CD(I-1)
CD(R-20) CD(B-1) CD(I-2)
CD(R-15) CD(S-2) CD(AR)
CD(R-30) CD(O-I) CD(A-I)
ART V-1

TABLE OF PERMITTED USES
P
R
R
R
R
B
B
I
1
O
A
A
S
R
PERMITTED USES
D
20S
20
15
10
1
2
1
2&
1
R
1
C
A
AGRICULTURE, FORESTRY, FISHING
Agricultural Uses
P
p
P
P
p
p
p
p
p
p
p
p
p
p
Kennels
P
S
S
S
P
P
S
S
Veterinaries
P
p
p
p
Wholesale Nurseries & Greenhouses (12/13/82)
P
P
P
P
P
P
p
p
p
p
p
p
p
p
MINING
Mining & Quarrying
p
CONSTRUCTION
General Building Contractor
p
p
p
P
p
General Contractors Other Than Building
P
P
P
p
Landscaping Contractors (12/13182)
P
P
P
p
p
Special Trade Contractors
P
p
P
p
p
Special Trade and General Contractors with no
P
P
P
Outside Storage (1215/88)
MANUFACTURING
Apparel & Other Finished Products (4/1/85)
P
p
Bakery Products
P
p
P
p
Beverages
P
p
P
Cabinet & Woodworking Shop (4/1/85)
P
P
P
P
Chemicals & Allied Products
p
Electric & Electronic Machines, Equipment & Supplies
P
P
P
P
Fabricated Metal Products (411/85)
P
P
P
P
Food & Kindred Products
p
Furniture & Fixtures
P
Furniture & Fixtures with no Outside Storage (6/85)
(3/8/93)
P
P
P
Instruments & Related Products
P
P
P
P
Leather & Leather Products
P
Lumber & Wood Products
p
Machinery Except Electrical
p
Miscellaneous Manufacturing
P
P
P
P
Paper & Allied Products
p
Petroleum & Related Products
P
Primary Metal
p
Printing & Publishing
P
p
p
p
Rubber & Miscellaneous Products
p
ART V-2

TABLE OF PERMITTED USES
P
R
R
R
R
B
B
1
1
O
A
A
S
R
PERMITTED USES
D
20S
20
15
10
1
2
1
2&
1
R
I
C
I A
MANUFACTURING (Continued)
Slaughter House
P
Stone, Clay, Glass & Concrete Products
p
Textile Manufacturing
p
Tobacco Manufacturing
p
Transportation Equipment
P
P
P
P
TRANSPORTATION, COMMUNICATION, UTILITIES
Air Transportation
P
P
p
P
Bus & Taxi Terminals (2/14/83)
P
P
P
p
Commercial Marina with Floating Structures (4/2184)
S
S
S
S
S
S
S
S
S
Commercial Marina (2114/83)
P
S
S
S
S
S
P
P
P
S
Electric/Gas & Sanitary Services
P
P
P
P
P
P
P
P
P
P
p
P
P
P
Electrical Sub -Stations
P
S
S
S
P
P
P
P
P
S
P
P
S
Junk Yards, Scrap Processing (See Sec. 68)
P
Mini -Warehouses
P
p
P
p
P
Motor Freight Transportation Warehousing
P
P
P
P
Post Offices
p
P
P
p
P
P
Railroad Transportation
p
Telephone & Telegraph Facilities
P
P
P
P
P
P
p
P
p
P
p
P
p
P
TV & Radio Broadcasting
P
p
P
P
Warehousing
P
P
P
P
P
Water Transportation Facilities
P
P
p
P
Other Communication facilities including towers (2/5/96)
S
S
S
S
S
S
S
P
P
S
S
S
S
S
Antenna and towers less than 70 feet in height and
ancillary to the principal use (2/5/96)
P
P
P
P
P
P
P
P
P
P
P
P
P
P
WHOLESALE TRADE
Livestock Sales
p
Wholesaling
P
P
P
P
Wholesaling with no Outside Storage (1112/81)
P
P
Wholesale Seafood with Water Frontage .
P
P
p
P
P
RETAIL TRADE
Apparel & Accessory Store
P
P
P
P
p
Automobile Service Station
P
P
p
p
P
P
P
Automobile Dealers & Truck Sales
P
p
P
P
P
Boat Dealers
P
p
P
p
P
Building Materials & Garden Supplies
P
P
P
P
P
ART V-3

TABLE OF PERMITTED USES
P
R
R
R
R
B
B
I
I
O
A
A
S
R
PERMITTED USES
D
20S
20
15
10
1
2
1
2&
1
R
1
C
A
RETAIL TRADE (Continued)
Convenience Food Store (7/5/85)
P
S
S
P
P
P
P
S
S
P
S
Drug Store
P
p
p
P
P
Eating & Drinking Places
P
p
p
p
P
p
p
Entertainment Establishments, Bars, Cabarets, Discos
P
S
P
P
Entertainment Establishments, Bars, Cabarets, Discos
P
P
p
P
in Shopping Center
Farm Implement Sales
P
P
P
p
Food Stores
P
p
p
P
Fruit & Vegetable Stand Produced on Same Parcel
P
P
P
P
P
p
P
P
as Offered for Sale
Furniture, Home Furnishing & Equipment
P
p
p
p
P
General Merchandise Stores
P
p
p
P
Handcrafting Small Articles
p
p
p
p
Hardware
p
p
P
p
Landscaping Service
p
P
P
Miscellaneous Retail
p
P
p
p
Mobile Home Dealers & Prefabricated Bldgs. (5/6/85)
P
P
p
P
Retail Nurseries (12/13/82)
P
p
p
p
S
p
Historic Restaurant
p
S
p
p
P
P
FINANCING, INSURANCE, REAL ESTATE
Banks, Credit Agencies, Savings & Loans
P
p
p
P
P
P
Cemeteries
S
S
S
S
S
S
S
SERVICES
Automobile/Boat Repair Sales
P
P
p
P
p
Automobile Rentals
P
p
P
Business Services Including Printing
p
p
p
p
P
P
Camping, Travel Trailer Parks (2/14/83)
P
S
S
S
S
P
S
Drive -In Theater
p
p
Dry. Cleaning/LaundryPlant
P
p
P
P
p
Electrical Repair Shops
P
p
P
Equipment Rental & Leasing
p
p
p
p
Funeral Home
p
p
p
p
Golf Courses
P
p
P
p
P
P
p
Hotels & Motels (12/13/82)
P
p
P
p
Indoor & Outdoor Recreation Establishments
P
S
S
S
P
P
P
S
P
S
Commercially Operated (2/14/83)
Indoor Theater (2/14/83)
P
P
P
Membership Sports & Recreation Clubs (12/13182)
P
S
S
S
S
P
P
P
P
P
S
Parks & Recreation Areas
P
p
p
p
p
P
P
p
ART V-4

TABLE OF PERMITTED USES
P
R
R
R
R
B
B
I
I
O
A
A
S
R
PERMITTED USES
D
20S
20
15
10
1
2
1
2&
1
R
I
C
A
SERVICES (Continued)
Outdoor Shooting Ranges (2/7183)
S
S
Personal Services
p
p
p
P
Resort Hotel/Motel (1/4/83)
P
p
p
p
Stables (3/2/81)
P
P
P
P
P
P
P
P
P
Septic Tank Vacuum Service
p
p
p
Watch, Clock, Jewelry Repair
P
P
P
P
Adult Entertainment Establishments
S
Barber/Beauty Shop 10190
P
P
p
p
p
HEALTH
Adult Day Care
P
S
S
S
S
P
S
Children's Day Care (12/13/82)
P
S
S
S
S
P
P
S
S
P
S
Community Center
P
S
S
S
S
P
S
Hospitals
P
S
S
S
S
P
S
Nursing & Personal Care Facilities
P
S
S
S
S
P
S
Residential Care (9/8/81)
P
P
P
P
P
p
p
p
EDUCATIONAL SERVICES
Colleges, Universities, Professional Schools &
P
S
S
S
S
P
S
Technical Institutions
Elementary & Secondary Schools
P
P
p
P
P
p
p
Libraries
P
P
P
P
P
P
P
P
P
P
P
Museums (5/2/83)
P
p
p
p
p
MEMBERSHIP ORGANIZATIONS
Churches
P
p
p
P
p
p
p
p
p
p
p
p
p
p
Labor Organizations
P
p
p
p
Lodges, Fraternal & Social Organizations (5083)
P
S
S
S
S
P
P
P
S
S
except Residential
p
p
p
Fratemities/Sororities, Residential
P
p
p
ART V-5

TABLE OF PERMITTED USES
P
R
R
R
R
B
B
I
I
O
A
A
S
R
PERMITTED USES
D
20S
20
15
10
1
2
1
2&
1
R
I
C
A
OTHER
Accessory Buildings or Uses, Clearly Incidental to the
P
P
P
.. P.
P
P
P
P
P
p
P,
p
p
p
Permitted Use or Building (see Section 62)
Circuses, Carnivals, Fairs & Side Shows of no more
P
P
P
p
P
than 30 days Duration per Year
Community Boating Facility (8/6/84)
S
S
S
S
S
S
S
Private Residential Boating Facility (9/19192)
P
P
p
P
p
P
p
Demolition -Landscape Landfill
P
P
P
P
P
P
p
p
p
p
p
p
p
p
Duplexes
P
S
p
S
S
Dwelling Unit Contained within Principal Use (4/1/85)
P
S
S
S
Government Offices & Buildings
P
S
S
S
S
P
P
p
P
P
P
S
Home Occupation
p
P
p
P
P
Iss
p
p
Mobile Home
S
P
P
P
S
Mobile Home, Doublewide (6/7/82)
P
P
P
P
P
P
Mobile Home Park (Density shall not exceed 2.5 units
P
S
S
S
beyond Urban Transition area) (2116/87) (10/11195)
High Density Development' (3/22/82)
S
S
S
S
('Permitted only within Urban Transition area-
(2/16/87) (10/11/95))(Special Use Permit 7/1196)
Offices for Private Business & Professional Activities
P
P
P
P
P
P
p
p
Outdoor Advertising
p
P
p
Principal Use Sign
p
P
p
p
P
P
p
p
Research Facilities
P
P
In
p
P
Residential Private Pier
P
P
p
p
P
P
Sanitary Landfill
S
Septage Disposal (7/6/83) (8/1/83)
S
Sludge Disposal (716/82) (see Section69.5) (8/1/83)
S
P
Single Family Dwelling
P
P
p
p
p
p
p
P
Single Family Dwelling - Attached (1/4/82)
P
P
P
P
P
P
Temporary Sign
P
P
P
P
P
P
p
p
p
p
p
p
p
P
Recycling Facilities: (1/3/89)
Small Collection
P
P
P
p
p
p
p
Large Collection
P
p
p
p
Processing
P
p
Large Collection with Processing
S
Mobile Home Subdivision (611/92)
S
S
S
S
S
Outdoor Bazaars excluding Yard Sales (7/6192)
P
P
P
P
P
P
P
p
P
P
P
P
p
P
Christmas Tree Sales (7/6/92)
P
P
P
p
P
P
p
P
Pumpkin Safes (716/92)
P
P
p
p
p
p
p
p
Special Fund Raising for
Non-profit Organizations (716/92)
P
P
P
P
P
P
P
P
P
P
p
P
p
P
Evangelistic and Religious Assemblies
not conducted at a Church (716/92)
P
P
P
P
P
p
p
P
p
p
P
p
p
p
ART V-6

Section 51
R-20S Residential District /i /7/811
51-1
.
The R-20S Residential District is established as a district in which the
principal use of land is for low density single-family residential purposes.
The -regulations of -this district are -to permit development compatible with
the preservation of its rural character. and providing limited growth. It is
designed to accommodate residential opportunities for those who desire'
exurban, low -density lifestyle and are willing to assume the costs of
providing many of their own services and amenities while maximizing the
protection of resources and the conservation of open space. Mobile homes,
duplexes, residential clusters, attached residential and high density
attached residential uses shall not be permitted.
51-2
Dimensional R m n 9:
1. Minimum Lot area 20,000 Square Feet
2. Minimum Lot width 90 feet
3. Minimum Front Yard 30 feet
4. Minimum Side Yard 15 feet
S. Minimum Rear Yard 25 feet
6. Maximum Height 35 feet
The maximum allowable height for piling supported primary structures which
are located in "Coastal High Hazard Areas, V-zones" and/or Ocean Hazard Areas
as defined by the Coastal Resources Commission shall be 44 feet. (10/5/92)
51-3
Parkino - Parking and loading shall be provided in accordance with the
provisions of Article VIII.
51-4
Signs_- Signs shall be in accordance with Article IX.
51-5
Mobile Homes - Mobile homes, duplexes, residential clusters, attached
residential and high density attached residential uses shall not be
permitted. (12/7/81)
51.5-1 Conventional Residential, Conventional residential lots shall meet the
dimensional requirements, parking, and sign regulations specified in the applicable
zone. (1/4/82)
51.5-2 Performance Residential: In addition to the density limit established in the
applicable zone, all Performance Residential Development shall comply with the
following regulations:
1. Buildings on the periphery of a Performance Residential Development shall
setback no less than twenty (20) feet from the adjoining property line.
(6/16/86)
2. In no case shall any part of a detached single-family dwelling unit be
located closer than ten (10) feet to any part of any other detached
single-family dwelling; and in no case shall any part of a multiple
dwelling unit be located closer than twenty (20) feet to any part of
another dwelling unit. (6/l/92)
3. Parking shall be. provided in..accordance with Article VIII of this
Ordinance.
4. A drainage plan pursuant to Section 52-5 of the Subdivision Ordinance
shall be submitted to the County Engineer for approval. (5/5/97)
ART V-7

5. Water' supply and sewage disposal facilities shall be approved by the
County and appropriate local or state agency per section 69.6. (8/3/87)
6. All -undivided areas within the development (other, than. street rights -of -
way, parking, and structures) shall be designated as open space. The open
space shall meet the requirements of Section 69.1 of this Ordinance.
7. Private streets will be permitted in Performance Residential Developments;
however, dedication of public streets and utility easements may be
required if such are indicated on the official plans as adopted by New
Hanover County or any municipality therein or if it is determined by the
County Planning Board that such public streets or easements are necessary.
(4/6/87)
8. When a development proposal is submitted under this Section, it shall be
processed as a major subdivision (more than five lots) under the
provisions of the New Hanover County Subdivision Regulations as amended.
(4/6/87)(10/3/94)
9. A site plan conforming to the requirements of Section 69.2 shall be
submitted.
10. A homeowners association meeting the requirements of Section 69.3 shall be
established.
11. In calculating the density for a proposed development, the following areas
shall first be subtracted from the gross area of land to be committed to
development. In lieu of subtracting Dorovan, Johnston, and Pamlico soils,
the developer may choose to preserve 100% of such areas as conservation
space. Such designation shall follow the requirements of Section 59.4-
4(4) Methods of Conservation Space Preservation with all improvements
limited to Section 59.4-4(3) mgrov m nt .
(a) all natural lakes, ponds, rivers, or marshes; and,
(b) all areas of Class IV soils as defined in A Classification of Soil in New Hanover County for Septic Tank suitability, All calculations
shall be rounded to the nearest whole unit. (1/4/84)(9/6/94)
(c) Residential units shall not be clustered at a density greater than
2.5 units per net tract acre in areas classified Conservation, Rural
or Resource Protection in the Wilmington - New Hanover Land -Use Plan,
except under the following circumstances. If a development
encompasses Resource Protection or Rural areas, and Conservation
areas, then density may exceed 2.5 units per acre in the Resource
Protection or Rural area, provided the number of units in the
Conservation area is reduced by an equal amount. At no time shall
the overall density of the project exceed the limits specified in the
respective residential zoning districts. (2/16/87)
12. Any land designated as open space may be used in calculating the density
for a proposed development and may be retained by the developer, subject
to the provisions of Section 69.1 hereof. (12/l/84)
13. Buffer strips shall be required in.accordance with Section 67. (5/6/85)
ART V-8

Section 52 R-20 Residential District
52-1 The R-20 Residential District is established as a district in which the
principal use of land is for low density residential and recreational
purposes. The regulations of this district are intended to discourage any use
which because of its. character would substantially interfere with the
development of residences and which would be detrimental to the quiet
residential nature of the areas included within this district.
52-2 Conventional Residential Regulations
Dimensional Requirements:
(1) Minimum lot area 20,000 eq.ft. Duplex 35,000 sq.ft.
(2) Minimum lot width 90 feet
(3) Minimum front yard 30 feet
(4) Minimum side yard 15 feet
(5) Minimum rear yard 25 feet
(6) Maximum Height 35 feet
The maximum allowable height for piling supported primary structures which are
located in "Coastal High Hazard Areas, V-zones" and/or Ocean Hazard Areas as
defined by the coastal Resources Commission shall be 44 feet. (10/5/92)
52-3 Parkin c - Parking and loading shall be provided in accordance with the
provisions set forth in Article VIII.
52-4 Signs - Signs shall be in accordance with Article IX.
52-5 Performance Residentiai - The maximum density of Performance Residential
development shall be 1.9 units per net tract acre (with net tract area
determined pursuant to Section 51.5-2(11)). (1/4/82)
CSection 52.5 R-15 Residential District52.5-1 The R-15 Residential District is established as a district in which the
principal use of land is for residential purposes and to insure that residential
development not having access to public water and dependent upon septic tanks for
sewage disposal will occur at sufficiently low densities to insure a healthful
environment.
52.5-2 Conventional Rggjdential Regulations
Dimensional Requirements:
(1) Minimum lot area 15,000 sq.ft. Duplex 25,000 sq.ft.
(2) Minimum lot width 80 feet
(3) Minimum front yard 25 feet
(4) Minimum side yard 10 feet
(5) Minimum rear yard 20 feet
(6) Maximum height 35 feet
The maximum allowable height for piling supported primary structures which
are located in "Coastal High Hazard Areas, V-zones" and/or Ocean Hazard
Areas as defined by the Coastal Resources Commission shall be 44 feet.
(10/5/92)
(7) deleted (5/3/76)
(8) Any'lot in any subdivision platted and recorded prior to May 3, 1976 shall
not be more than ten (10) percent less than the minimum lot area and
minimum lot width established within the R-15 district, provided said lots
are served by a community water system provided by the North Carolina
Department of Human Resources Division of Health Services. (6/2/80)
52.5-3 Parking - Parking and loading shall be provided in accordance with the
provisions set forth in Article VIII.
ART V-9

52.5-4 Signs - Signs shall be in accordance with Article IX.
52.5-5 Performan R 'd ntiat - The maximum density of Performance Residential
Development shall be 2.5 units per net tract acre (with net tract area determined
pursuant to Section 51.5-2-(11)). (1/4/82)
Section 53 R-10 Residential District
53-1 The R-10 Residential District is established as a district in which the
principal use of land is for residential purposes with access to either public
water or public sewer. If public water is not available, then the water
system infrastructure must be installed in accordance with County standards
and connected when a public supply becomes available. (4/1/96)
53-2 Conventional Residential Regulations
Dimensional Requirements:
(1) Minimum lot aria: 10,000 square feet (2/16/87)
Duplexes: 15,000 sq. ft. (1/5/81)
(2) Minimum lot -width 70 feet
(3) Minimum front yard 25 feet
(4) Minimum side yard 5 feet
(5) Minimum rear yard 20 feet
(6) Maximum height 35 feet
The maximum allowable height for piling supported primary structures which
are located in "Coastal High Hazard Areas, V-Zones" and/or Ocean Hazard
Areas as defined by the Coastal Resources Commission shall be 44 feet.
(10/5/92)
53-3 Parkina - Parking and loading shall be provided in accordance with the
provisions of Article VIII.
53-4 Signs - Signs shall be in accordance with Article IX.
53-5 Performance Residential - The maximum density of Performance Residential
Development shall be 3.3 units per net tract acre (with net tract area
determined pursuant to Section 51.5-2 (11)). (1/4/82)
Section 53.5 Planned Development (PDl District
53.5-1 Intent - The PD District is established to foster the mixing of various land
uses, under appropriate planning controls, that would otherwise not be
possible under general district requirements. It is designed to promote
economical and efficient patterns of land use which are sensitive to natural
features and site amenities and which decrease automobile travel time and trip
length; encourage trip consolidation; reduce energy consumption and demands;
and encourage unified and compatible development between land uses for the
benefit of all County residents. The PD District is intended to provide
flexibility in permitting planned urban development within the constraints of
the County's Land Use Plan, in situations where the owners of the property
present a development plan which is found to be in the public interest and
which provides necessary urban services and improvements required by this
ordinance and the County's Policies for Growth and Development.
The PD District requires approval
flexibility in building design, layout
and land uses, usable open space, and
features is permitted.
ART V-10
of a master land use plan whereby
and siting, mixtures in housing types
the preservation of significant natural

53.5-2 District Regulations
(1) Minimum District i A contiguous gross land area of one hundred (100)
acres or more under common ownership or joint petition.
(2) Maximum Building Heigh The maximum building height for residential,
commercial, and office and institutional structures shall be forty (40)
feet; except that the maximum height for buildings located within the
Urban Transition Area as indicated on the County's Land Classification Map
and fronting along a Collector, Minor Arterial or Principal Arterial as
indicated on the County's Thoroughfare Classification Plan shall be eighty
(80) feet. (10/5/95)
(3) Building Setback and Separation-• Buildings located on the periphery of
the PD District shall be setback a minimum of twenty (20) feet from the PD
District boundary. All buildings shall be setback at least ten (10) feet
from all pedestrian and bicycle paths, twenty-five (25) feet from all
public and private streets, and fifty (50) feet along US and NC numbered
highways and major thoroughfares. No building shall encroach upon the
right-of-way of a proposed thoroughfare as designated by the Wilmington
Area Thoroughfare Plan. In no case shall any part of a detached single
family dwelling unit be located closer than ten (10) feet to any part of
any other detached single family dwelling; and in no case shall any part
of a multiple dwelling unit be located closer than twenty (20) feet to any
part of another dwelling unit, or non-residential buildings. (2/87) The
minimum side yard for a corner lot on interior streets shall not be less
than 15 feet for residential uses and not less than 25 feet for non-
residential uses. (7/10/89)
(4) Fringe Area: To insure compatibility with adjoining land uses, a
fringe use area, two hundred (200) feet in width, shall be established
along' the exterior property lines of the PD District where the exterior
property lines of the PD District are adjacent to residential uses and/or
platted residential lots. If the exterior property line of the PD
district is not adjacent to residential uses and/or platted residential
lots, then no fringe use area will be required. If a fringe use area is
required, only residential uses or open space may be permitted within that
fringe area. The maximum building height within the fringe use area shall
be thirty-five (35) feet.
Required setback = (Building Height) x (2.75) In no case shall the
minimum setback be less than 25 feet. The part of the yard adjacent to
the residential districts shall be used only for buffering and as
specified in Section 67. (3/9/88)
(5) Land Use Mixture. No more than thirty (30) percent of the PD District
shall be used for light industrial, commercial, and office and
institutional purposes.
(6) Maximum Density.: (1/2/90)
(A) Allowable density shall be determined by the Site Capacity Standards
for High Density Development as authorized in Section 69.4(3) of this
Ordinance, except that land intended for commercial, office and
institutional, and industrial uses shall also be subtracted from the
gross site area. The residential density factor of the PD district
shall be 4.25 dwelling unite per acre if the PD shall be located
within the Urban Transition area. The residential density factor of
the PD district shall be 2.5 dwelling units per base site acre if the
PD shall be located beyond the Urban Transition area. (10/5/95)
(B) Residential units shall not be allowed at a density greater than 2.5
units per acre in areas classified Rural, Conservation, or Resource
Protection in the Wilmington - New Hanover Land -Use Plan. In cases
where a Planned Development includes Rural or Resource Protection
areas, and Conservation areas, then density may exceed 2.5 units per
acre in the Resource Protection or Rural area, provided the number of
units in the Conservation area is reduced by an equal amount_
(2/16/87)
ART V-11

(C) If the PD District shall be located within the Urban Transition Area,
the residential density factor of the PD District may be increased by
using the following "Density Bonus Chart". An increase in density
from 4.25 to 10.2 dwelling units per acre requires a total score of
1 65 points or more. An increase in density from 10.2 to 17 units per
acre requires a total score of 165 points or more. (2/16/87)
(10/5/95) -
Density Bonus Chart
Density Points
Adjacent to a Minor or Principal Arterial Facility as indicated an the County's Thoroughfare
10
Classification Plan.
Within one mile by road of established businesses sufficient to support a total employment equal to
85% of the anticipated labor force (calculated at one worker per unit) of the PD district population.
I5
If the PD is located in a manner that satisfied at least two of the following criteria:
1. Within one road mile of a neighborhood convenience store offering basic grocery items and
other items.
2. Within two road miles of a community shopping center. A community shopping center is
defined as a site with a common parking area, a grocery store, and at least two of the following
I5
types of retail establishments: drug store, hardware store, dry cleaners, variety retail,
department store,discount store or restaurant.
3. Within three miles of regional shopping center consisting of over 100,000 sq. ft. of retail space
for sales and storage.
At least U2 mile inland of coastal wetlands, estuurine waters, estuarine shorelines and public
25
trust waters.
All structures are located beyond the 100 year floodplain as designated on the County's Official Flood
20
Insurance Maps.
Outside the County s most sensitive aquifer recharge area (Area No. 2) as shown on the Aquifer
15
Sensitivity Map forNew Hanover County.
Bus or shuttle transportation.
10
Solid waste transfer station.
30
Within one mile of a public park and recreation facility.
10
At least 5% of the total number of dwelling units in the PD District are designated and reserved on the
Master Land Use Plan for either handicapped or households with income less than the gross median
households' income for New Hanover County
20
Public access and public waterfront facilities provided, such as docks, piers, and boat ramps.
25
All residential units will meet the thermal standards specified by Carolina Power and Light Co. for
obtaining their 5% reduction in residential rates (CP&L Schedule RES-41)
5
Alternative energy systems supply at least 20% of the total non-renewable energy consumption for
space and hot water hearing. Alternative enemy systems, for purposes of this Ordinance, are defined
as constructed passive or active systems. Passive systems shall be evaluated using the solar load ratio
method and active systems using the F-chart system. Points will not be awarded for this incentive
unless the conditions for the above incentive concerning thermal standards are also met.
20
Recreational facilities other than tot lots and mini -parks. These recreational facilities may include, but
are not limited to, tennis courts, golf courses, ball fields, basketball courts,
and community recreation
buildings. Points will be awarded at a rate of one point for each $5,000 of investment (not including
land or design costs), up to a maximum of 20 points. Adequacy of design and improvements, and cost
20
estimates will be evaluated by the Coun Parks Department.
ART V-12

(7) The following minimum improvements and public services shall be provided
in accordance with all standards set by the County or appropriate local or
State agency:
(A) Water supply and sewer facilities; (8/3/87)
(B) Fire hydrant and water supply systems that meet the standards
specified in Volume 2, Standard 24 of the National Fire Protection
Association Fire Code as amended.
(C) Adequate public elementary school facilities shall be available to
serve the PD District. The developer must choose and do one of the
following two options:
1. The developer may donate by gift deed land to the County Board
of Education provided the following conditions are met.
a. The amount of land dedicated shall be equal to the
following: acreage of land = (} of units in PD) x (.0217
Acres/Unit)
b. The value of the land donated shall be equal to or greater
than the fee. The value of the land shall be determined
either by its tax assessed market value or by a certified
appraiser, who shall be chosen by the County and whose fee
shall be paid by the developer.
C. The land to be donated must be evaluated and accepted by
the Board of Education with regard to such criteria as
location, access, physical characteristics, and size.
In the event that land is not so donated and accepted, then
section 2 below applies.
2. The developer may pay a fee to New Hanover County for the
benefit of the County Board of Education equal to the tax
assessed market value of the amount of land calculated in
subsection (1) a. above, for unimproved land in the PD site.
(3/2/87)
(D) If the PD is not attached to the County or City sewer system then its
sewage system must be located at least 1/4 mile from all estuarine
waters.
(E) A drainage plan pursuant to Section 52-5 of the Subdivision
Ordinance. (5/5/97)
ART V-13

(F)
A fee shall be paid to New Hanover County for use by the fire
-
department servicing the PD District. The Fire Service District
Commission shall recommend the most appropriate use of the fee to
provide adequate fire protection in the District. The fee shall be
calculated as follows:
Fee = ($ of units in the PD) x (Avg, household size in
1. Unincorporated County) x
(Present total assessed property
valuation in unincorporated County) x (Present Fire Service
(Total population in District tax rate) x 2
unincorporated County) (3/2/87)
(G)
Street lights, at the rate of one fixture per SOO linear feet or less
of roadway.
(H)
Tot lots and/or mini -parks (adequacy of design and improvements to be
evaluated by County Parks and Recreation Department), at the rate of
one acre or more per 1,000 population.
(I)
Audible fire alarm systems connected directly to the County's
Emergency Dispatch System for all structures except single-family and
duplex residential.
(J)
Parking: Off-street parking shall be provided in accordance with
Article VIII of this Ordinance.
(K)
Signs: Signs shall be in accordance with Article IX of this
Ordinance. The developer shall be responsible for erecting and
maintaining street name signs at all intersections within the PD
District. Signs on public streets shall conform with existing
Department of Transportation regulations.
(L)
Community Property Owner's Association: A Community Property Owner s
Association shall be established in accordance with Sections 69.1 and
69.3 of the Zoning ordinance.
(M)
Rgquired Master Land Use Plan
1. A Master Land Use Plan and necessary documents shall be
submitted along with the rezoning petition. The Master Land Use
i�
Plan shall consist of an overall land use plan showing existing
and proposed development for the PD District as a whole.
2. The Master Plan shall be prepared by a multi -disciplinary team
consisting f qualified practitioners in architecture, planning,
and engineering.
3. Contents of the Master Land Use Plan shall include the
following:
a. Scale not less than one (1) inch to four hundred (400)
feet.
b. North Arrow
C. Vicinity or Location Hap
d. Development name
e. Owner's name and address
f. Developer (if other than owner)
g. Names of design team
h. Date
i. Boundary line of the proposed PD District
J. Existing topographic information with two (2) foot contour
intervals
1. All water courses, 100-year floodplains, mean high water
lines and unique natural features
M. Tree inventory and location
n. Recreation areas and facilities
o. Street layout and traffic circulation pattern
p. Pedestrian and bicycle circulation systems
q. Residential areas with projected density and planned
housing types, and acreage
ART V-14

Section 53.5-3
r. Commercial, industrial, and office and institutional areas
with proposed land uses, estimated square footage, and
acreage.
S. All adjoining land uses and zoning districts.
t. Fiinge use areas
U. School sites and recreational areas to be dedicated for
public use, if applicable
V. Total gross acres
W. Total acres occupied by all street right-of-way and parking -
areas
X. High Density calculations as required in Section 69.4
4. The Master Land Use Plan shall be accompanied by the following:
a.
The names and addresses of each property owner within the
proposed PD district.
b.
A legal description of the proposed PD District
C.
Community property owners association proposed covenants.
d.
A drainage plan showing locations and acreage of drainage
areas, sizes and specifications of drainage structures, and
supporting calculations using Soil Conservation Service
methods or other methods approved by the County Engineer
for both pre -development and post -development conditions.
e.
A utility plan showing existing and proposed utility
systems, including sanitary sewers, water, electric, gas,
television and telephone lines, fire hydrants, street
lighting and trash collection areas.
f.
A traffic impact analysis
g.
A development phasing schedule including the sequence and
approximate dates of each phase; and, proposed phasing of
construction of public improvements, recreation, and common
open space areas.
h.
A statement of planning objectives including:
1. Identification of appropriate County Land Use Policies
achieved by the proposed PD District;
2. An estimate of total residential population
3. Other necessary information and evidence to support
the creation of a PD District in the County.
(N) Thoroughfare
Requirements - The development shall have direct access,
as required in Section 69.9, to and from an existing major or minor
arterial
as indicated in the New Hanover County Classification Plan.
All interior drives shall be designed so as to provide adequate
access for emergency service vehicles. (2/16/87)
A PD District shall be processed in three stages: Conceptual Review,
Master Land Use Plan; and Final Plan. The concept Plan :hall represent
the applicant's general sketch and impression of the anticipated pattern
of development planned for the PD District. The Master Land Use Plan
shall specify the uses of land and layout of landscaping, circulation and
buildings. The Final Plan shall be the document on which building permits
and other applicable county approvals are issued. Each stage shall be
processed in the following order:
(1) Conceptual Review
(A) This is a scheduled pre -application conference held with the
County Planning Department to discuss requirements, standards
and policies prior to the submission of a formal PD District
rezoning petition.
(B) The general outline of the proposed PD (evidenced schematically
by sketch plans or drawings showing the proposed location of the
PD district, land uses, major streets, site conditions, land
characteristics, available community facilities and utilities,
and other applicable information) shall be submitted by the
applicant for conceptual review at the pre -application
ART V-15

conference.
(C)
After holding the required conference, the County Planning
Department shall notify the appropriate representatives of
{
various County agencies (such as the County Sheriff, Board of
Education, Engineering, Building Inspections, Health Department,
and Volunteer Fire Departments) to obtain preliminary comments
regarding the.proposed PD. Upon receipt of.these comments, the
County Planning Director shall furnish the participants with
written comments,including appropriate recommendations to inform
and assist the applicant prior to preparing a formal PD district
rezoning petition.
(2) Master
Land Use Plan
(A)
Application for a PD district shall be filed with the County
Planning Department. The County Planning Department shall
review the Master Land Use Plan and PD district rezoning
petition in the nature of an amendment to the County's Official
Zoning Map. such an amendment shall be processed pursuant to
the general requirements of Article XI of this Ordinance. Upon
receipt of all necessary application materials, the Planning
Director shall schedule the petition before the County Planning
Board.
(B)
The Board of County Commissioners, following receipt of the
Planning Board's recommendation will review the PD district
rezoning petition and Master Land Use Plan with respect to its
technical sufficiency and its consistency with the Land Use Plan
and the Policies for Growth and Development.
(C)
Approval of the Master Land Use Plan as part of the PD district
requirements shall not constitute final plan approval, rather it
shall be deemed an expression of approval of the rezoning
request and the overall design and densities as submitted on the
Master Land Use Plan. The Master Land Use Plan shall be filed
in the county Planning Department.
(D)
Minor changes and revisions to the Master Land Use Plan may be
approved administratively by the County Planning Director,
without additional public hearings, provided such changes to not
result in:
1. A change in the use or character of the PD
2. A change of design for, 'or an increase in the hazards to
pedestrian and vehicle traffic circulation;
3. A reduction in the originally approved setbacks from roads
and/or property lines.
Any changes, other than minor changes, shall only be made by the
County Commissioners, and must follow the same review and public
hearing process required for other Zoning Ordinance Amendments.
(3) Final
Plan
(A) Application for Final Plan approval or sections thereof shall be
made with the County Planning Department.
(B) The Final Plan shall be in compliance with the Master Plan and
no construction; excavation, or clearing shall be commenced of
any building permit issued until the Final Plan has been
approved and signed by the Planning Director.
(C) The Final Plan shall be reviewed pursuant to Section .69.4 of
this Ordinance for High Density Development.
(D) The Final Plan shall constitute the equivalent of preliminary
Plan approval under the New Hanover County Subdivision
Ordinance. The applicant shall not be required to submit a
separate subdivision application. Final plats for condominium
and subdivision developments, however, shall be submitted in
accordance with the Subdivision Regulation requirements.
ART V-16

Section 54 B-1 Business District
54-1 The purpose of this District shall be to provide convenient shopping
facilities primarily of necessity goods and personal services required to
serve a neighborhood. The district's principal means of ingress and
egress shall be along collector roads, minor arterials, and/or major
arterials as designated on the County's Thoroughfare Classification Plan.
(8/4/86) No B-1 Business District shall be less than two (2) acres in
area. 1.
54-2 deleted (1/5/81)
54-3 deleted (1/5/81)
54-4 Dimensional Requirements
(1) Minimum Lot Area - None
(2) Minimum Front Yard - Fifty (50) feet along US and NC numbered
highways and major thoroughfares as designated by the Wilmington Area
Thoroughfare Plan. Thirty-five (35) feet along all other public
highways or streets.
(3) Minimum side and rear yards for property abutting residential
districts:
a. Required minimum setbacks for structures shall be calculated in
accordance with Section 69.11.
b. Buffering and landscaping shall meet the requirements of Section
67-4. (3/9/88)
(4) Maximum Building Height - Thirty-five (35) feet (12/13/82)
54-5 Parking - Parking and loading shall be provided in accordance with the
provisions of Article VIII.
54-6 Signs - Signs shall be in accordance with Article IX.
54-7 deleted (3/9/88)
Section 55 B-2 Highway Business District
55-1 The purpose of this district shall be to provide for the proper grouping
and development of roadside business uses which will best accommodate the
needs of the motoring public and businesses demanding high volume traffic.
The district's principal means of ingress and egress shall be along
collector roads, minor arterials, and/or major arterials as designated on
the County's Thoroughfare Classification Plan. (8/4/86) No B-2 District
shall be less than five (5) acres in area.
55-2 deleted (1/5/81)
55-3 deleted (1/5/81)
55-4 Dimensional R oui m nha
(1) Minimum Lot Area - None
(2) Minimum Front Yard - Fifty (50) feet along US and NC numbered
highways and major thoroughfares as designated by the Wilmington Area
ThoroughfarePlan. Thirty-five (35) feet along all other public
highways or streets.
(3) Minimum side and rear yards for property abutting residential
districts:
a. The required minimum setbacks for structures shall be calculated
in accordance with Section 69.11.
b. Buffering and landscaping shall meet the requirements of Section
67-4. (3/9/88)
(4) Maximum Building Height - 40 feet; except that buildings located
within the Urban Transition Area and fronting along a collector,
Minor Arterial or Principal Arterial as indicated on the County's
Thoroughfare Classification Plan, may exceed 40 feet provided their
E8a does not exceed 1.0 (2/7/83) (10/5/95)
ART V-17

55-5
Parking - Parking and loading shall be provided in accordance with the
provisions of Article VIII.
55-6
Signs - Signs shall be in accordance with Article IX.
- 55-7
deleted (3/9/88)
Section 56
I-1 Industrial District
56-1
The purpose of this district shall be to provide areas for those uses of
an industrial, warehousing, and storage nature which do not create an
excessive amount of noise, odor, smoke, dust, air borne debris, or other
objectionable characteristics which might be detrimental to surrounding
areas. No I-1 district will be less than five (5) acres in area.
56-2
deleted (1/5/81)
56-3
deleted (1/5/81)
56-4
Dimensional Rego+irements
(1) Minimum Lot Area - None
(2) Minimum Front Yard - 50 feet
(3) Minimum side and rear yards for property abutting residential
districts:
a. The required minimum setbacks for structures shall be calculated
in accordance with Section 69.11.
b. Buffering and landscaping shall meet the requirements of Section
67-4. (3/9/88)
(4) Maximum Building Height - 40 feet; except that buildings located
within the Urban Transition Area and fronting along a Collector,
Minor Arterial or Principal Arterial as indicated on the County's
Thoroughfare Classification Plan, may exceed 40 feet provided their
FAR does not exceed 1.0 (2/7/83)
56-5
Parking - Parking and loading shall be provided in accordance with the
provisions of Article VIII.
56-6
Signs - Signs shall be in accordance with Article IX.
56-7
deleted (3/9/88)
Section 57 I-2 Industrial District
57-1 The purpose of this district shall be to provide for uses that would
produce excessive noise, odor, smoke, dust, air borne debris, or any other
objectionable characteristics which might be detrimental to the health,
safety, and welfare of surrounding neighborhoods and/or communities. No
I-2 district shall be less than five (5) acres in area.
57-2 deleted (1/5/81)
57-3 deleted (1/5/81)
57-4 Dimensional Requirements
(1) Minimum Lot Area - None
(2) Minimum Front Yard - 50 feet
(3) Minimum side and rear yards for property abutting residential
districts:
a. The required minimum setbacks for structures shall be calculated
in accordance with Section 69.11.
b. Buffering and landscaping shall meet the requirements of Section
67-4. (3/9/88)
57-5 Parking - Parking and loading shall be provided in accordance with the
provisions of Article VIII.
57-6 Signs - Signs shall be in accordance with Article IX.
57-7 deleted (3/9/88)
ART V-18

Section 58
58-1 Creation - The Board of County Commissioners, on recommendation of the
Planning Board, -`may rezone any area as a Shopping Center District on the
findings that the area has the following characteristics:
(1) The area contains a minimum of seven (7) acres.
(2) The area does not extend across any major highway.
(3) A shopping center in this location will not have unduly adverse
effects upon existing residential properties which abut this
district.
(4) The street and highway system serving the area is adequate to handle
the amount of traffic which the Shopping Center might reasonably be
expected to generate, without creating undue hazards to safety or
unreasonable impediments to the flow of other traffic.
(5) Adequate utilities to serve the district are available.
(6) The topography of the site is sufficient to accommodate a Shopping
Center and its required off-street parking spaces.
(7) The location of the proposed district is in general conformity with
the Land Development Plan for New Hanover County.
(8) The owner or owners of the entire area to be rezoned have joined in
the petition for rezoning.
(9) Buffer strips shall be required in accordance with Section 67.
(5/6/8S)
$8-2 Procedures - In creating a shopping Center District, the same procedures
shall be followed as those for making any other amendments to the Zoning
Ordinance under Article XI hereof. In addition,- the applicant for
rezoning shall be required to submit the following as a prerequisite for
consideration of the proposed amendment.
(1) A written description of the market area intended to be served by the
district including population, effective demand for proposed business
facilities, and such other information as the Planning Board may
reasonably require in order to determine the extent of the need for
such a shopping center at this location.
(2) A site development plan for the proposed district showing the
following features:
(a) The location and general exterior dimensions of main and
accessory building, and the types of uses proposed for each;
(b) A time schedule showing the successive stages of development for
each structure;
(c) A traffic and circulation plan showing ingress and egress to and
from the highway and the internal plan of circulation;
(d) off-street parking and loading spaces in accordance with Article
VIII hereof;
(e) Topography at contour intervals no greater than two (2) feet
(f) The general drainage system, including both natural and man-made
features, and the proposed treatment of ground cover, slopes,
banks and ditches; and,
(g) The location and materials of walls and fences.
No amendment creating a Shopping Center District shall be enacted without
concurrent approval by the Board of county commissioners of the site
development plan for the district. Where the Board of Commissioners finds
that any of the requirements of this Ordinance have not been met, or that
the site plan fails to provide unity of development with other business
properties, or that it fails to adequately protect residential property
from the adverse effects of a business operation, or that it fails to
provide safe conditions for pedestrians, the Board may refuse to approve
the site plan. After approval of the site development plan, a copy of the
approved plans shall be filed with the Building Inspector, and no building
permit shall be issued for any property within the area except in
conformity with the approved plans. No Certificate of Occupancy shall be
issued for any building or structure within the district until the
Building Inspector finds that required off-street parking and loading
space for the building or structure and any other necessary facilities
shown on the plan have been constructed.
ART V-19

58-3 Failure o Comply with Plans - In event of failure to comply with the
plans or the time schedule for construction approved by the Board of
Commissioners, no building permits for further construction shall be
issued. All colleted structures shall be regarded as non -conforming uses
subject to the provisions of Article VI of this Ordinance; provided,
however, that the Board of Commissioners shall not be prevented from
-thereafter rezoning said property for its most appropriate use.
58-4 Amendment of District Bn,,,.. le-g of Agproved Site at - The Board of
Commissioners may from time to time amend the Ordinance so as to enlarge
or diminish a Shopping Center District or to rezone it entirely for other
purposes; provided, however, that no amendment shall reduce the size of
such district to less than seven (7) acres, unless the entire district is
rezoned for other purposes. In making any such amendments, the same
procedures specified for creation of the original Shopping Center district
shall be followed. The owner or owner's of property included in a
shopping Center District may at any time file a request for amendment of
the approved site development plan. Such a request shall be treated in
the same manner as an amendment to the Zoning ordinance as provided in
Article XI thereof.
58-5 deleted (1/5/81)
58-6 Dimensional Requirements - No building or structure in a Shopping
center district shall be located nearer than fifty (50) feet to any
street right-of-way abutting the district boundary or nearer than
twenty-five (25) feet to any other property line along the district
boundary.
Section 59.1 o&I Office and Institutional District
59.1-1 The purpose of the Office and Institutional District shall be to provide
areas where institutional uses, professional office uses and other uses
compatible to uses of an office or institutional nature shall be
{/ encouraged to locate and to provide protection for this type land use from encroachment by other less desirable uses. The district's principal means
of ingress and egress shall be along collector roads, minor arterials,
and/or major arterials as designated on the county's Thoroughfare
Classification Plan. (8/4/86)
59.1-2 deleted (1/5/81)
59.1-3 deleted (1/5/81)
59.1-4 Signs and Lighting for office and Institutional District.
(1) Advertising Signs: One sign of an advertising nature depicting the
name or nature of a produce, service or business located on that
premise shall be permitted on any premise in the O & I District.
Such signs shall be limited to twelve (12) feet in surface area and
shall not exceed the height of the principal structure on the
premise. Such signs, if illuminated, shall be indirectly illuminated
with the source of light concealed from the view of any public street
or any residential lot.
(2) Directional Signs: Signs of a directional nature shall be permitted;
however, each such sign shall not exceed two (2) square feet in
surface area (one side) with no lighting and shall be limited to
seven (7) feet in height.
(3) Outdoor lighting: The source of any outdoor lighting in an O & I
District shall be concealed so as not to be visible from any public
street or any residential lot.
(4) In the case of premises located adjacent to minor or major arterials
as identified in the New Hanover County Thoroughfare Classification
Plan, total signage shall be limited to 75 square feet in surface
area. (1/2/96)
59.1-5 Required parking (see Article VIII of the New Hanover County Zoning
Ordinance for Parking Requirements)
ART V-20

59.1-6
(1) Minimum lot area shall be 15,000 square feet
(2) Minimum lot width shall be 90 feet
(3) Minimum front yard shall be 25 feet
(4) Minimum s-lde and rear yards for property abutting
districts:
a. The required minimum. setbacks .for -structures .shall
in accordance with Section 69.11.
residential
be calculated
b. Buffering and landscaping shall meet the requirements of Section•
67-4. (3/9/88)
(5) Maximum Building height - 40 feet (2/7183)
59.1-7 deleted (3/9/88)
59.1-8 Performance Residential - The maximum .density of performance residential
development shall be 2.5 dwelling units per net tract area (with net tract
area determined pursuant to Section 51.1-2 (11)).
Section 59.2 AR Airport Residential District
59.2-1 The Airport Residential District is established for the purpose of
limiting the development of land within the vicinity of the New Hanover
County Airport to low density residential development. In promoting the
general purpose of this Ordinance, the specific intent of this Section is:
to minimize aircraft hazards by excessive density; to prohibit the
development of places of assembly such as schools, hospitals, rest homes
or other uses which tend to concentrate large numbers of people; and, to
promote the health safety and general welfare of the inhabitants of New
Hanover County by preventing the creation of hazards to the Airport,
thereby protecting the lives and property of the users of the Airport and
of occupants in the vicinity and preventing destruction or impairment of
the utility of the Airport and the public investment therein.
59.2-2 deleted (1/5/81)
59.2-3 deleted (1/5/81)
59.2-4 Dimensional R guirements
(1) Minimum lot area shall be 43,560 sq. ft.
(2) Minimum lot width shall be 100 feet.
(3) Minimum front yard shall be 25 feet.
(4) Minimum side yard shall be 20 feet
(5) Minimum rear yard shall be 30 feet.
(6) Maximum height, unless otherwise specified by the New Hanover County
Airport Height Zoning Ordinance, no building shall exceed thirty-five
(35) feet in height.
59.2-5 Special Recru' ements - The following special requirements shall apply to
each permitted or Special Use.
(1) Lighting
(A) A pulsating, flashing, rotating, oscillating, or other type of
light intended as an attention -getting device shall be expressly
prohibited.
(B) Flood lights, spot lights, or other lighting device shall be so
arranged or shielded as not to cast illumination in an upward
direction above an imaginary line extended from the light source
parallel to the ground.
(2) Radio and electronic
(A) Any radio or electronic device shall be permitted only in
conjunction with a valid license or other authorization as may
be issued by the Federal Communications Commission.
(B) Any radio or electronic device, the operation of which would
violate any rules or regulations of the Federal Communications
Commission is expressly prohibited.
(3) Visual hazards
(A) Any operation or use which emits, smoke, dust or creates glare
or other visual hazards is expressly prohibited.
ART V-21

Section 59.3
Al Airport Industrial District
59.3-1
The Airport Industrial District is established as a planned restricted
industrial district in which the principal use of land is for indoor
-distributive
manufacturing and type operations that are compatible with
airport facilities and which require sites adjacent to railroads and/or
.major thoroughfares. In.promoting the.general purpose..of this Ordinance,
the specific intent of this Section is: to encourage the types of
development having maximum compatibility with aircraft operations; to -
protect and to promote the public utility of the Airport; and, to promote
the health, safety and general welfare of the inhabitants of New Hanover
County by preventing the creation of hazards to the Airport, thereby
protecting the lives and property of the users of the Airport and of
occupants in the vicinity and preventing destruction or impairment of the
utility of the Airport and the public investment therein.
59.3-2
deleted (1/5/81)
59.3-3
deleted (1/5/81)
59.3-4
(1) Minimum lot area shall be 43,560 sq. ft.
(2) Minimum lot width shall be 150 feet.
(3) Minimum front yard shall be 50 feet.
(4) Minimum side and rear yards for property abutting residential
districts:
a. The required minimum setbacks for structures shall be calculated
in accordance with Section 69.11.
b. Buffering and landscaping shall meet the requirements of Section
67-4. (3/9/88)
(5) Maximum height, unless otherwise specified in the New Hanover County
Airport Height Zoning Ordinance, no building shall exceed thirty-five
(35) feet in height.
(6) Dimensional Requirements: Any property subdivided and recorded prior
to 6/1/81 may be less than the minimum lot area established for the
district, provided such lots are located outside of an approach zone
for the New Hanover County Airport. (6/4/84)
59.3-5 Protection of Residential Areas - It is required, in order to protect and
promote existing or future residential development, that any means of
direct access to or from any permitted or Special Use in the AI zone shall
not be through any residentially zoned or developed area or along any
street or road in any residential subdivision. (3/9/88)
59.3-6 Special
Requirements - The following special requirements
apply to
each permitted or special use:
(1)
Lighting
(A)
A pulsating, flashing, rotating, oscillating or other type of
lighting intended as an attention -getting device shall be
expressly prohibited.
(B)
Flood lights, spot lights or other lighting device shall be so
arranged or shielded as not to cast illumination in an upward
direction above an imaginary line extended from the light source
parallel to the ground.
(2)
Radio and electronic
(A)
Any radio or electronic device shall be permitted only in
conjunction with a valid license or other authorization as may
be issued by the Federal Communications Commission.
(B)
Any radio or electronic device, the operation of which would
violate any rules or regulations of the Federal Communications
Commission is expressly prohibited.
(3)
Visual hazards
(A)
Any operation or use which emits smoke, dust, or creates glare
or other visual hazards is expressly prohibited. (All of
Sections 59.2 and 59.3 were originally adopted 10/4/76)
ART V-22

Section 59.4
Conservation Overlay District
59.4-1
Purpose - The purpose of the Conservation Overlay District (COD) for
conservation resources is to protect important environmental and cultural
resources within the County. Protection of these resources is necessary
to maintain tThe
County's diverse and ecologically important natural
systems; to preserve the County's estuarine systems important for
..finfishing and shellfishing; to provide open space; and to retain the
County's archaeological and historical heritage. These COD's shall be in
addition to any other zoning districts where applied so that any parcel of
land lying in a COD may also lie in one or more of the zoning districts
provided for by this ordinance. The development of all
uses permitted by
right or by special use permit in the underlying district, if any, shall
be subject to the requirements of both the COD and the underlying
district, if any. In the event that the COD requirements conflict with
the underlying district requirements, the requirements of the COD shall
take precedence. If requirements for a particular item are not specified
in the COD but are specified by the underlying district, then the
requirements of the underlying district shall be followed.
59.4-2 Appl'
ab'li v - The development and improvement of property, including the
subdivision of land, shall be subject to these performance controls if the parcel of
record is
located wholly or partially within a COD and if conservation resources, as
specified
in Section S9.4-3, are associated with the parcel on record as of December
1, 1984,
the effective date of this ordinance. The following uses, however, are
exempted
from these controls:
(1)
The development of one single family home detached structure, one
residential duplex, or the location of two or fewer mobile homes on a
parcel or lot.
(2)
Commercial, industrial, office or institutional development involving
a land disturbance of less than 1 (one) acre in area.
(3)
The development or subdivision of a parcel that meets both of the
following conditions:
(A) No part of the development or subdivision shall be located
within a distance equal to or less than the setback distance
(specified in Section 59.4-5) of any conservation
resource or
space existing on the parcel or on a contiguous parcel of
record.
(B) No part of the development or subdivision shall be located on
any portion of the parcel that is part of the upper drainage
basin for any conservation resource or space on the parcel or
within the specified setback on a contiguous parcel of record.
59.4-3 Conservation R s+rca - If a parcel on record as of December 1, 1984, the
effective date of this ordinance, is associated with any one of the
conservation resources having the minimum distinct areas listed below then
the parcel shall be subject to the following performance controls.
Official maps of and information concerning these resources shall be
maintained by and shall be available for review at the County Planning
Department. These maps shall be updated as needed by the County Planning
Department and shall serve as the official source by which to determine if
a parcel is associated with Conservation Resources. A parcel is
considered to be associated with a conservation resource if either the
resource is contained partially or wholly on the parcel or if the resource
is located next to a parcel such that the resource setback specified in
Section 59.4-5 extends into the parcel.
ART V-23

(1) Ecological Resources Minimum
distinct area
1.
Swamp forest
2.5
acres
2.
Pocosin
2.5
acres
3.
Savannah
2.5
acres
4.
Natural "ponds
0.1
acre
S.
Freshwater marsh
0.1
acre
6.
Brackish --marsh
0.1
acre
7.
Primary nursery areas
0.1
acre
8.
Barrier island -beach
complex (including dunes)
0.1
acre
9.
Maritime shrub thickets
1.0
acre
10.
Salt Marsh
0.1
acre
11.
Animal and Plant Natural Areas
of Special Significance
no limit
(2) Archeological/Historical
Resources
no limit
59.4-4 General Performance controls foron rva a apace - The following
general performance controls for conservation space apply to all uses
within a COD that are subject to controls as determined by Section 59.4-2
and Section 59.4-3.
(1) Reouired amounts of Conservation Space
(A) Conservation space is defined as that portion of the
conservation resource that shall be preserved, as determined by
this Section.
(B) Conservation space may not be reserved provided the development
or subdivision of the parcel meets the condition specified in
Section 59.4-2(3)(a).
If the development or subdivision does not meet the condition
specified in Section 59.4-2(3)(b), then, the development or
subdivision shall meet applicable drainage and setback
regulations specified in Sections 59.4-4(5) and 59.4-5.
ART V-24

WORKTABLE FOR DETERMINING REQUIRED
CONSERVATION SPACE AND DEVELOPABLE LAND
CONSERVATION ACREAGE OF CONSERVATION MINIMUM
RESOURCE RESOURCE ON SPACE FACTOR CONSERVATION
(Importance Value) PARCEL .(times) ...-..(equals) SPACE
Swamp Forest (5)
.5
(Min. 5 acres)
Pocosin (5)
.5
(Min. 5 acres)
Savannah (3)
.5
(Min. 5 acre)
Natural Pond (8)
1.0
Fresh Marsh (6)
,8
(Min. one acre)
Brackish Marsh (9)
1.0
Primary Nursery Area (13)
1.0
Barrier Island -Beach
,9
Complex (11)
Maritime Shrub Thickets
,7
(10)
Salt Marsh (12)
1.0
Important Historicall
.9
Archeological Site (7)
Animal & Plant Areas of
,9
S ecial Si ificance (10)
TOTAL MINIMUM CONSERVATION SPACE
TOTALPARCELACREAGE
MINUS TOTAL MINIMUM CONSERVATION SPACE
EQUALS MAXIMUM DEVELOPABLE LAND
(C) Conservation space shall not be required to be reserved for
the following resources unless the total acreage of minimum
distinct areas on the parcel of record exceeds the
following minimum:
Resource Total Aggregate Minimum Acreage
Swamp Forest 5 acres
Pocosin 5 acres
Savannah 5 acres
ART V-25

(2)
Step One: List in column 2 the acreage of land occupied by each
conservation resource named in column 1. If part of the parcel is
occupied by more than one resource, list the acreage occupied only by
the resource with the highest ranking. Rankings are listed in column
1 in parenthesis next to the resource name.
Step Two: Multiply each of. the .listed.acreage in column 2 by factors
listed in column 3. Place each answer in column 4.
Step Three: Add the acreage in column 4 to determine total minimum
conservation space required.
Step Four: Subtract the total minimum conservation space from the
total gross parcel to determine the maximum amount of developable
land.
The total amount of conservation space that shall be reserved shall
be equal to or exceed the total minimum conservation space calculated
in step three. The total minimum conservation space shall be
allocated to and reserved for conservation resource areas in acreage
equal to or exceeding the minimum acreage calculated for the
resources in column 4.
Conservation space shall be reserved in contiguous blocks or in close
proximity to the greatest extent possible in order to prevent the
scattering of such space and to increase effectiveness in their
management.
Conservation Areas In order to provide flexibility in site design,
the minimum acreage of conservation space required in column 4 for
any one conservation resource area may be reduced by any desired
amount provided, however, that the minimum conservation space
required for a different conservation resource area with an equal or
higher ranking is increased by an equal or higher amount. For
instance, assume that a parcel within a COD has ten acres of swamp
forest and fifteen acres of fresh marsh. According to the worktable,
swamp forest has a conservation factor of .5 and fresh marsh as a
conservation of .8. Therefore, at least 5 acres of swamp forest must
be reserved as conservation space (10 acres x .5 = 5), and at least
twelve acres of fresh marsh must be reserved (15 acres x .8 - 12.0
acres). If the developer, however, wishes to develop seven acres of
swamp forest, he may transfer two acres of the conservation space
requirement for swamp forest to the fresh marsh because fresh marsh
has a higher importance value (6) than does swamp forest (5). As a
result of the transfer, therefore, all fourteen acres of the fresh
marsh would be required to be preserved as conservation space while
only three acres of swamp forest would be required to be preserved.
(3) Improvements - Conservation space shall not be.cleared of vegetation,
shall not have its natural drainage system significantly altered, and
shall not be developed in any manner that would negatively impact the
conservation resource, with the fallowing exceptions:
(A) Improvements that would either protect or enhance the enjoyment
of the conservation resource. Such measures not causing
significant impact include, but are not limited to, walkways,
self -guided trails, protective fences, docks and boat ramps.
(B) Access to other parts of the parcel. If a part of the parcel
may be developed but is inaccessible due to the existence of a
conservation resource area, a road and/or utilities may be
constructed through the conservation resource area. The road
and/or utilities, however, shall be designed to the greatest
extent practical to minimize impact to the conservation
resource.
(c) Access to the waterfront. If the entire waterfront along a
parcel is inaccessible due to the existence of required
conservation space, a boat ramp, dock,or pier may be built for
boating facilities in the conservation space, subject to
relevant State and Federal permits. The facilities, however,
ART V-26

shall be designed to the greatest extent practical to minimize
impact to the conservation resource.
(4) Methods of conserva ion p- preservation
(A) Conservation space may be preserved by any of the following
means:
1. Dedication of the conservation space or of a conservation
easement in perpetuity to and acceptance by the County for
use as parks, recreation areas, or other suitable public
purposes, or
2. Dedication for suitable public purpose of the conservation
space or of a conservation easement in perpetuity to and
acceptance by State or Federal agency or by a private, non-
profit charitable organization qualified to accept such
dedications in accordance with the Federal Internal Revenue
Code.
3. The owner of the parcel on record may retain sole ownership
of the conservation space. The conservation space shall
not be subdivided.
4. The conservation space may become the property of a
homeowner's association under the following conditions:
(a) Such conservation space shall remain undivided and no
lot or unit owner or any other person shall bring any
action for partition or division of any part thereof
except as provided in chapter 47A (Unit Ownership Act)
of the General Statutes. Each lot or unit owner's
undivided interest shall be preserved through
covenants running with the land. Title to such areas
shall be encumbered for the perpetual benefit of the
public generally or the private properties in the
development, and all future use shall be consistent
with the conservation space requirements.
(b) All lots or units within the development shall have
direct access to all conservation space as provided,
by means of public streets or dedicated walkways or by
the fact of physical contiguity to other public land
or lands in common ownership of all residents. The
developer shall not place age, race, creed, sex or
economic restrictions (other than maintenance
assessments) upon lot or unit owners for the use of
said conservation space. Land which is restricted in
any way so as to be for the use, benefit or enjoyment
of a select group within the development shall not
qualify as conservation space.
(1) The Homeowner's Association or the non-profit
organization shall be established before any lots
are sold;
(2) Membership shall be mandatory for each lot buyer,
and any successive buyer;
(3) The association shall provide for liability
insurance, any taxes and the maintenance of all
grounds and facilities;
(4) Any sums levied by the association that remain
unpaid shall become a lien upon the lot owner's
property.
(5) Design Storm - Stormwater runoff for the entire parcel will be
managed by structures appropriately sized such that the peak rate of
discharge from the site after completion of development for any storm
up to and including the specified design storm, shall not exceed the
peak rate of discharge from the site in its previous natural
condition for the specified design storm. The design storm is
specified as occurring once every 10 years and lasting for 24 hours.
Industrial, commercial, office or institutional development on a
parcel one acre or less in size and with a maximum impervious to
ART V-27

gross site area ratio of less than .2 shall be exempt from this
control. Discharge of run-off from impervious surfaces for the
entire parcel directly into natural waterbodies shall not be allowed_
Runoff shall be routed along vegetated swales, through filter media
of vegetation, gravel, sand, or other media, or to detention ponds
for purposes of increasing percolation, settling and filtering out of
non -point .pollutants and decreasing discharge velocity. .
(6) Buffer et 3,g - Buffer strip, if required in accordance with Section
67, shall not be extended through conservation space areas. (5/6/85)
(7) Historical and a.'cha oloai al sites
(A) If a developer wishes to develop an historical or archaeological
site, he shall either
1. Provide for a thorough site investigation by a professional
historian or archaeologist, as appropriate, who shall
prepare a written report with the following information:
(a) Description of site
(b) Relevant historical documentation/background research
(c) Research design
(d) Field studies as actually implemented
including any deviation from the design
and the reason for the deviation
(e) All field observations
(f) Analyses and results
(g) Information on the location of original data in the
form of field notes, photographs, and other materials
(h) Proof that adequate creation of artifacts and records
to ensure their preservation and access for further
study will be provided
(i) Recommendation for further study and preservation of
the site, given anticipated development
(j) Evaluation of the potential of the site for inclusion
in the National Register of Historic Places. If the
site is evaluated to have historical or archaeological
significance and is eligible for the NationalRegister,
every reasonable effort shall be made in the
development to preserve it; or
(B) Give access rights for investigating the site and acquisition
rights to artifacts to the Planning Department or its designated
agent for a period of at least 60 days between issuance of the
building permit and any development of the property that would
impact the site.
ART V-28

Section 59.4-5 Additional Performance Control
In addition to the general performance controls specified in Section
C 59.4-4, additional controls shall be required to protect certain
conservation resources in certain zoning districts. The Table of
Additional Controls lists for each resource and district the reference
number of the group of additional controls that shall be required. If the
parcel being developed is associated with two or more conservation re-
sources with conflicting performance controls, then the most restrictive
controls shall apply. However, improvements as specified in Section
59.4-4(3) may be permitted within the conservation space setbacks.
Additionally, decks may be. allowed to encroach into the conservation space
setback up to six (6) feet provided they are uncovered and constructed so
that the floorboards are spaced to allow water to flow through directly to
the ground. The ground below the deck shall be either left undisturbed or
planted with ground cover or other vegetation. (4/6/92)
GROUPS OF ADDITIONAL PERFORMANCE CONTROLS
BY REFERENCE NUMBER
Non -
Conservation Resource Residential Residential
Swamp Forest (Min. 5 acres)
4
3
Pocosin (Min. 5 acres)
4
3
Savannah (Min. 5 acres)
4
3
Natural Pond
3
2
Fresh Marsh (Min.I acre)
3
3
Brackish Marsh
2
1
Primary Nursery Area
2
1
Barrier Island -Beach Complex
2
1
Maritime Shrub Thickets
2
1
Salt Marsh
2
1
Animal and Plant (Natural) Areas of Special Significance
2
I
GROUP 1
(A)Conservation Space Setbacks - All structures and impervious surfaces
shall be setback from the conservation space, if any, whether the space is
located on the parcel or on an adjacent parcel, a distance of at least 100
feet.
(B)Retention of Runoff - In addition to designing the site to control
stormwater from a 10 year storm, on -site retention or percolation areas
shall be required for the entire parcel sufficient to control, at a
minimum, the first one inch of runoff that will originate from all
impervious surfaces anticipated to be on the site upon final development.
The specified amount of runoff from impervious surfaces shall be disposed
of by percolation into the soil, evaporation, transpiration, or other
methods of treatment or handling acceptable to the County Engineering
Department.
ART V-29

GROUP 2
(A)Conservatiop:Space Setbacks - All structures and impervious surfaces
shall be setback from the conservation space, if any, whether the space is
located on the parcel or on an adjacent parcel, a distance of at least 75
feet.
(B)Retention of Runoff - In addition to designing the site to control
stormwater from a 10 year storm, on -site retention or percolation areas
shall be required for the entire parcel sufficient to control, at a
minimum, the first .75 inch of runoff that will originate from all
impervious surfaces anticipated to be on the site upon final development.
The specified amount of runoff from impervious surfaces shall be disposed
of by percolation into the soil, evaporation, transpiration, or other
methods of treatment or handling acceptable to the County Engineering
Department.
GROUP 3
(A)Conservation Space Setbacks - All structures and impervious surfaces
shall be setback from the conservation space, if any, whether the space is
located on the parcel or on an adjacent parcel, a distance of at least So
feet.
B)Retention of Runoff - In addition to designing the site to control
stormwater from a 10 year storm, on -site retention or percolation areas
shall be required for the entire parcel sufficient to control, at a
minimum, the first .5 inch of runoff that will originate from all
impervious surfaces anticipated to be on the site upon final development.
The specified amount of runoff from imper-vious surfaces shall be disposed
of by percolation into the soil, evaporation, transpiration, or other
methods of treatment or handling acceptable to the County Engineering
Department.
GROUP 4
(A)Conservation Space Setbacks - All structures and impervious surfaces
shall be setback from the conservation space, if any, whether the space is
located on the parcel or on an adjacent parcel, a distance of at least 25
feet.
(B)Retention of Runoff - In addition to designing the site to control
stormwater from a 10 year storm, on -site retention or percolation areas
shall be required for the entire parcel sufficient to control, at a
minimum, the first .25 inch of runoff that will originate from all
impervious surfaces anticipated to be on the site upon final development.
The specified amount of runoff from impervious surfaces shall be disposed
of by percolation into the soil, evaporation, transpiration, or other
methods of treatment or handling acceptable to the County Engineering
Department.
ART V-30

Section 59.5
Rural Aaricultural District RA f7/l/851
59.5-1
The RA Rural Agricultural District is established as a district An which
the principal use of land is for low density single family residential
purposes. The regulations of this district encourage rural farming
activities and the preservation of open space. The district is designed
to promote exurban, low density residential development not requiring
urban services while maintaining prime farm land and a rural life style.
59.5-2
D m n ionat R 411irements
(1) Minimum lot area 30,000 sq. ft.
Duplexes 50,000 sq. ft.
(2) Minimum lot width 115 feet
(3) Minimum side yard 20 feet
(4) Minimum front yard 40 feet
(5) Minimum rear yard 30 feet
(6) Maximum height 35 feet
The maximum allowable height for piling supported structures which are
located in "Coastal High Hazard Areas, V-Zones" as defined by Article 4-74
of the New Hanover County Code shall be 44 feet.
59.5-3
Parkin o - Parking and loading shall be provided in accordance with the
provisions set forth in Article VIII.
59.5-4
Sians - Signs shall be in accordance with Article IX.
59.5-5
Performance Residential - The maximum density of Performance Residential
development shall be 1.0 dwelling units
per net tract acre (with net tract
acre determined pursuant to Section 51.5-2(11)).
Section 59.6
Special Highway Overlay District f /3/861
\_.. 59.6-1
Purpose - The purpose of the Special Highway Overlay District (SHOD) is to
protect the natural beauty and scenic vista that exists along Interstate
Highways and other specially designated roadways that serve
as major
access ways and gateways into New Hanover County. Protection of these
roadways ie important and necessary to maintain and preserve the County's
undisturbed roadsides that are characterized by their natural woodlands
and open spaces. The continued protection of these scenic highways is
also a valuable asset to the County's tourism economy and enhances the
attractiveness of the area for trade and investment.
The Special Highway District shall be in addition to any other zoning
districts where applied so that any parcel of land lying in a SHOD may
also lie in one or more of the zoning districts provided for by this
Ordinance. The development of all uses permitted by right or by special
use permit in the underlying district, if any, shall be subject to the
requirements of both the SHOD and the underlying district, if any. In the
event the SHOD requirements conflict with the underlying district
requirements, the requirements of the SHOD shall take precedence. If
requirements for a particular item are not specified in the SHOD but are
specified by the underlying district, then the requirements of the
underlying district shall be followed.
59.6-2 Procedures - In creating a Special Highway Overlay District (SHOD), the
same procedures shall be followed as those for making any other amendments
to the Zoning Ordinance under Article XI hereof.
59.6-3 ADDlicability - It is hereby required that all non-residential structures,
buildings and improvements to property located within the SHOD comply with
the following regulations. Access roads and utility (communications, gas,
electrical, sanitary services) structures are exempted from these
controls. (5/4/87)
ART V-31

(1) Setback Requirements - All non-residential buildings and accessory uses
shall set back no less than 100 feet from the right-of-way of the
designated highway. No building shall be located less than 25 feet from
any property line. However, the setback may be reduced for those
buildings, accessory uses and off-street parking by a maximum of 25i if
the project provides additional plantings along the right-of-way. At a
minimum, these plantings shall consist of.one deciduous or evergreen tree
at least 2.5"-3" caliper for every 40 feet of road frontage. These
streetscape trees must be selected and planted in accordance with Section
67 of the Ordinance. Plantings must be located in the first ten feet of
land adjacent to and parallel to the right-of-way except that plantings
may be moved outside this area if it is determined that overhead power
lines would interfere with the trees' natural growth. (3/9/95)
(2) Enclosed Facilities - All manufacturing, storage, offices,
wholesaling, retail sales or similar uses shall be conducted within
an enclosed building.
(3) Outside o ag - Outside storage can be permitted if it is located
directly to the rear of the principal building and is not visible
from the designated highway. The outside storage area shall not
occupy an area wider than the principal building or larger than one-
half (1/2) the area of the principal building. A three (3) row
screen shall be provided in accordance with the Landscape standards
of section 67. No storage shall be permitted above the height of the
screen. Junk yards and scrap processors shall not be permitted.
(4) Parking and Loadino
(A) Parking and loading shall be provided in accordance with the
provisions set forth in Article VIII and Section 67. All
loading shall be from the side or rear of the principal
structure as viewed from the designated highway. If loading is
performed on the side of the building, as viewed from the
designated highway, a three (3) row screen shall be provided in
accordance with the Landscape Standards of Section 67.
t/ (B) No vehicular or equipment parking except automobile parkin
\-- shall be permitted in the yard area adjacent to the designated
highway. All automobile parking shall be set back at least one
hundred (100) feet from the right-of-way of the designated
highway if such highway is an interstate or thoroughfare with
controlled access. Other US and NC numbered highways shall
require a fifty (50) feet setback for automobile parking.
(5) Lot Coverage - The total ground area covered by principal
buildings and all accessory buildings shall not exceed fifty
(50) percent of the site.
(6) Siang - Signs shall be in accordance with Article IX except that only
one free standing ground sign not to exceed six (6) feet in height
and a maximum surface area of 150 square feet may be permitted within
the 100 foot setback. No outdoor advertising signs shall be
permitted. (3/14/94)
Section 59.7 conditional Use District (1/2/90)
59.7-1 Purpose - The Conditional Use District procedure is established to
address situations where a particular land use would be consistent with
the New Hanover County Land Use Plan and the objectives of this ordinance
but none of the general zoning district classifications which would allow
that use are acceptable.
This procedure is intended primarily for use with transitions between
zoning districts of very dissimilar character (e.g. R-15 and B-2) where a
particular use or uses, with restrictive conditions to safeguard adjacent
Cland uses, can create a more orderly transition benefiting all affected
parties and the community -at -large. It is not intended as a routine
substitute for the general rezoning procedure, or for frequent use,
ART V-32

because creating a large number of such specialized districts can lead to
excessive administrative complexity and great difficulty in maintaining
consistent and -predictable land use policies.
This procedure is intended only for voluntary proposals submitted in the
names of the owners of all property included in the petition/ application.
This procedure is intended only for firm development proposals, and shall
not be used for tentative projects without definitive plans.
(1) only uses allowed by right or by special Use Permit in the
corresponding General Use District are eligible for Conditional Use
District consideration and any such use within a Conditional Use
District shall, as a minimum requirement, satisfy all the regulations
of the corresponding General Use District.
(2) Within a Conditional Use District, no use is allowed except by
Special Use Permit. .The Permit may specify additional conditions and
requirements which represent greater restrictions on development and
use of the tract than the corresponding General Use District
regulations, or other limitations on land which may be regulated by
state law or local ordinance. Such conditions and requirements shall
n= specify ownership status, race, religion, character or other
exclusionary characteristic of occupant, shall be objective, specific
and detailed to the extent necessary to accomplish their purpose, and
shall relate rationally to making the Permit compatible with the New
Hanover county Land Use Plan, the requirements for a Special Use
Permit and other pertinent requirements of the Zoning Ordinance, and
to securing the public health, safety, morals, and welfare.
(1) Who May Submit - Conditional Use District petition/applications may
be submitted only by all owners of all real property included in the
�.. petition/application.
(2) Content - Each Conditional Use District petition/application shall
include a complete Special Use Permit application satisfying the
requirements of Article VII, "Provisions for Uses Allowed as Special
Uses" and a rezoning petition containing the following general and
site plan information for the tract to be rezoned.
a. Tract boundaries and total area and location of adjoining land
parcels and roadways;
b. Existing zoning of the tract and neighboring parcels and
proposed tract zoning;
C. Proposed use of land, structures and other improvements. For
residential uses, this shall include number, height and type of
units and site plan outlining area to be occupied by each
structure and/or subdivided lot boundaries. For non-residential
uses, this shall include approximate square footage and height
of each structure, an outline of the area it will occupy and the
specific purpose for which it will be used;
d. Development schedule including proposed phasing;
e. Traffic and Parking Plan to include a statement of impact
concerning local traffic near the tract, proposed right-of-way
dedication, plans for access to and from the tract, location,
width and right-of-way for internal streets and location,
arrangement and access provisions for parking areas;
f. All existing and proposed easements, reservations, required
setbacks, rights -of -way, buffering and signage;
g. The one hundred (100) year flood plain line;
h. Location and sizing of trees required to be protected under
Section 67 of the Zoning Ordinance.
ART V-33

I. Any additional conditions and requirements, which represent
greater restrictions on development and use of the tract than
the corresponding General Use District regulations, which are
the minimum requirements in the Conditional Use District, or
other limitations on land which may be regulated by state law or
local ordinance.
J. Any other information that will facilitate review,of the
proposed change.
(3) submittal Procedure - Follow the provisions of Section 111-3 of the
Zoning Ordinance.
59.7-4 Approval P�
row
(1) Overview
a.
In all Conditional Use District proceedings, only testimony and
other evidence pertinent to the specific use proposed in the
petition/application shall be presented.
b.
After the public notice of scheduled hearing before the Planning
Board is delivered to the newspapers, no amendments to the
additional conditions and requirements specified in the
petition/application shall be added which are less restrictive,
including but not limited to less setback, more dwelling units,
greater height, more access points, new uses and fewer
improvements.
C.
No rezoning to a Conditional Use District shall be approved
unless all conditions and requirements for the companion Special
Use Permit have been included voluntarily by the petitioners, or
their authorized representatives.
d.
No rezoning to a Conditional Use District shall be approved
unless the companion Special Use Permit is also approved for the
use or uses specified.
e.
C
The companion Special Use Permit shall be approved only if the
requirements of Article VII, "Provisions for Uses Allowed
.
as
Special Uses", Section 59.7-3 and Section 59.7-4(2) are fully
satisfied.
(2) Property
owner and Public No : - Follow the provisions of Section
112-1
of the Zoning Ordinance.
(3) Planning Department Review - Follow the provisions of Section 112-2
of the Zoning Ordinance.
(4) Plannina Board CanmiderAtipa
a. Follow the provisions of Section 112-3 of the Zoning Ordinance
except as indicated below.
b. Planning Board members may propose additional conditions and
requirements beyond those listed in the petition/application.
Before the Board votes to recommend approval or denial, the
Board Chairman shall permit the petition/application to be
withdrawn or amended if so desired by the petitioners or their
authorized representatives. If the petitioners desire
additional time to consider their course of action, they may
request a continuance to the next scheduled public hearing of
the Board.
C. The Board shall document the specific factual findings and
analysis leading to its recommendation. A recommendation for
approval shall be based on findings that the requirements of
Sections 59.7-2 and 59.7-3 have been fully satisfied.
(5) Appeal of Planning Board Recommendations - Follow the provisions of
Section 112-4 of the Zoning Ordinance.
ART V-34

a. Follow the provisions of Section 112-5 of the Zoning Ordinance
except as indicated below.
b. One or more Commissioners may propose additional conditions or
requirements beyond those contained in the petition/application.
Before.the.Commissioners.vote.to approve or deny,.the Chairman
of the Commissioners shall permit the petition/application to be
withdrawn or amended if so desired by the petitioners or their
authorized representatives. If the petitioners desire
additional time to consider their course of action, they may
request a continuance.
C. When the petitioners have exercised or rejected their option to
amend their petition/application, it shall be considered for
approval or denial as a two-part ordinance amendment. The
proposed Conditional Use District rezoning is considered first,
then the companion Special Use Permit proposal. If the
Conditional Use District is denied, the Special Use Permit is
not considered. If both the Conditional Use District and the
companion Special Use Permit are approved, the ordinance
amendment is adopted. If the Conditional Use District is
approved but the Special Use Permit is denied, then the
Commissioners shall immediately rescind their approval of the
Conditional Use District because failure to do so will create a
Conditional Use District without an approved use. Approval
shall be based on findings that the requirements of Sections
59.7-2 and 59.7-3 have been fully satisfied.
(7) Effect of Approval
a. If the petition/application is approved, establishing the
Conditional Use District, all conditions attached thereto by the
companion Special Use Permit shall be binding on the tract
included in the Conditional Use District and all subsequent
development and use of the tract shall be in accordance with the
approved plan and conditions. No building permit shall be
�... issued for any development within a Conditional Use District
except in accordance with an approved Special Use Permit.
b. If any condition imposed under the companion special Use Permit
is found to be illegal, the approval of both the Special Use
Permit and the Conditional Use District shall be null and void,
and the tract shall be rezoned.
---=--- - 3Tmot,
(1) Minor changes to an approved Conditional Use District or its
companion Special Use Permit shall be considered in the same manner
as that used for Special Use Permits as set forth in Section 71-1(9)
of the Zoning Ordinance.
(2) Any request for a change to an approved Conditional Use District that
does not qualify as a minor change under the provisions of Section
71-1(9) of the Zoning Ordinance shall be submitted as a new
Conditional Use District.
59.7-6 Enforcement
(1) Failure to Proceed in a 111me1v Mann - If, within twenty-four (24)
months from the date of approval of the Conditional Use District, no
building permit has been issued for subject tract, the Planning
Department shall initiate action to simultaneously revoke the Special
Use Permit and rezone the Conditional Use District to its
classification prior to approval. (10/7/91)
ART V-35

(2) Failure to Comply
a. The Inspections Director shall enforce the Conditions -and
Requirements specified for each Conditional Use District and its
companion Special Use Permit following the provisions of
Articles X and XIII of the Zoning Ordinance.
b. If a violation of a condition or requirement is not corrected
within a reasonable time period, the Inspections Director shall
also refer the matter to the Planning Department for initiation
of proceedings to simultaneously revoke the Special Use Permit
and rezone the Conditional Use District to its classification
prior to approval.
Section 59.8 Water Sungly Watershed Overlay District (11/l/93)
59.8-1 Purpose - The purpose of the Water Supply Watershed Overlay District is to
,preserve and protect the water quality of the County's surface water
supplies from pollution as a result of activities from new construction as
well as existing development. The preservation of these potable drinking
water supplies is important to the orderly growth of the County and serves
to ensure that primary and secondary sources of drinking water are
available to serve existing and future populations. This ordinance is
established as mandated by the Water Supply Watershed Protection Act,
(NCGS 143-214.5)
The Water Supply Watershed Overlay District (WSW) shall be in addition to
any other zoning districts where applied so that any parcel of land lying
in a WSW may also lie in one or more of the zoning districts provided for
by this Ordinance. The development of all uses permitted by right or by
special use permit in the underlying district, if any, shall be subject to
the requirements of both the WSW and the underlying district, if any. In
the event the WSW requirements conflict with the underlying district
requirements, the requirements of the WSW shall take precedence. If
requirements for a particular item are not specified in the WSW but are
specified by the underlying district, then the requirements of the
underlying district shall be followed.
59.8-2 Procedures - In creating a Water Supply Watershed Overlay District, the
same procedures as those for making amendments to the ordinance (Article
XI) or appeals thereto (Article XII) shall be followed.
59.8-3 Applicability - It is hereby required that the development and improvement
of property, including the subdivision of land shall be subject to the
performance controls listed herein if the parcel(s) of record is located
within the water supply watershed. The following uses, however, are
exempted from these controls:
(1) The development of a single family home, one residential duplex, or
the location of two or fewer mobile homes on a parcel or lot of record
where permitted by the underlying zoning.
(2) The installation and maintenance of water, sewer, electrical and
other utility systems where it can be demonstrated that the installation
causes only minimal disturbance of the water supply.
(3) Agriculture subject to the provisions of the Food Security Act of
1985 and the Food, Agriculture, Conservation and Trade Act of 1990.
(4) Silviculture subject to the provisions of the Forest Practices
Guidelines Related to Water Quality (15 NCAC 1I.6101-.0209)
59.8-4 Water Supply Watershed Resources - Official maps of and information
pertaining to the water supply watershed shall be maintained by and shall
be available for review at the County Planning Department. These maps
shall serve as the official source by which to identify the boundaries of
the watershed.
ART V-36

59.8-5 n a D v lopmen Restrictions - Except as noted above, all land
development within the water supply watershed shall comply with the
following design limitations:
(1) Agriculture - Existing or new agricultural activities conducted after
January 1, 1994 shall maintain a minimum 10 foot vegetated buffer, or
equivalent buffer as determined by.the Soil Conservation.Service, adjacent
to the shore line of the water supply.
(2) Non- - All non-residential activities except as noted
above shall be limited to a built -upon area not to exceed 24% of the site.
Additionally, non-residential uses that store toxic or hazardous wastes or
other contaminants that are listed in SARA, Section 302, Extremely
Hazardous Substances, CERCLA Hazardous Substances, or Section 311 of CWA
(oil and hazardous substances) in any amount will not be allowed unless
they provide a spill containment plan approved by the Director of
Emergency Management. Such plans shall be updated every two years. Local
response to spills shall be in accordance with the Basic Plan, Appendix 8,
Hazardous Materials of the County's Emergency Operations and Hurricane
Evacuation Plan.
(3) Residential s: The maximum allowed density for new subdivisions,
including performance developments, shall not exceed that permitted by the
RA Rural Agriculture Zoning District. (59.5-2(1) and 59.5-5.
59.8-6Stormwater Manaq m n - A drainage plan pursuant to Section 52.5 of the
Subdivision Ordinance. All structures shall be set back at'least 100 feet
from the mean high water line. (11/1/93)(5/5/97)
ART V-37

APPENDIX E
PENDER COUNTY ZONING MAP

- - ---------
M3 -
POGO
AIRM
u 01,
" - ..: I a X
0-7
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0
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The EDR-Radius Map
with GeoCheckTM
Occidental Chemical Corporation
5408 Holly Shelter Road
Castle Hayne, NC 28429
Inquiry Number: 245866.1s
April 15,1998
RECEIVED 2 0 1999
12
': Environmental
Effl : Data
Resources, Inc.
an.:«edr-company
The Source
For Environmental
Risk Management
Data
3530 Post Road
Southport, Connecticut 06490
Nationwide Customer Service
Telephone: [phone]
Fax: [phone]
Internet: www.edrnet.com

SECTION
PAGE
Executive Summary-------------------------------------------------------
ES1
TopographicMap---------------------------------------------------------
2
GeoCheck Summary------------------------------------------------------
3
Overview Map-----------------------------------------------------------
5
DetailMap--------------------------------------------------------------
8
MapSummary - AllSites---------------------------------------------------
7
Map Summary - Sites with higher or the same elevation as the Target Property---------
8
MapFindings------------------------------------------------------------
9
Orphan Summary --------------------------------------------------
10
APPENDICES
GeoCheck Version 2.1----------------------------------------------------- Al
Government Records Searched / Data Currency Tracking AddendufrL--------------- A5
Thank you for your business.
Please contact EDR at 1-800-352-0050
with any questions or comments.
Disclaimer and Other Information
This Report contains information obtained from a variety of public and other sources and Environmental
Data Resources, Inc. (EDR) makes no representation or warranty regarding the accuracy, reliability, quality,
suitability, or completeness of said information or the information contained In this report. The customer
shall assume full responsibility for the use of this report.
NO WARRANTY OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE, EXPRESSED OR
IMPLIED, SHALL APPLY AND EDR SPECIFICALLY DISCLAIMS THE MAKING OF SUCH WARRANTIES. IN NO
EVENT SHALL EDR BE LIABLE TO ANYONE FOR SPECIAL, INCIDENTAL, CONSEQUENTIAL OR EXEMPLARY
DAMAGES. COPYRIGHT (C) 1998 BY ENVIRONMENTAL DATA RESOURCES, INC. ALL RIGHTS RESERVED.
Unless otherwise indicated, all trademarks used herein are the property of Environmental Data Resources,
Inc. or its affiliates.
TC245866.1s Page 1

A search of available environmental records was conducted by Environmental Data Resources, Inc.
(EDR). The report meets the government records search requirements of ASTM Standard Practice for
Environmental Site Assessments, E 1527-97. Search distances are per ASTM standard or custom
distances requested by the user.
The address of the subject property for which the search was intended is:
5408 HOLLY SHELTER ROAD
CASTLE HAYNE, NC 28429
No mapped sites were found in EDR's search of available ( "reasonably ascertainable ") government
records either on the subject property or within the ASTM E 1527-97 search radius around the subject
property for the following Databases:
NPL:------------------------- National Priority List
Delisted NPL----------------- NPL Deletions
RCRIS-TSD------------------. Resource Conservation and Recovery Information System
SHWS:----------------------- State Haz. Waste
CERCLIS:-------------------- Comprehensive Environmental Response, Compensation, and Liability Information
. System
CERC-NFRAP---------------- Comprehensive Environmental Response, Compensation, and Liability Information
. System
CORRACTS:... -------------- Corrective Action Report
SWF/LF---------------------- List of Solid Waste Facility
LUST------------------------- Incidents Management Database
UST:------------------------- Petroleum Underground Storage Tank Database
RAATS----------------------- RCRA Administrative Action Tracking System
RCRIS-SQG:----------------- Resource Conservation and Recovery Information System
RCRIS-LQG%---------------- Resource Conservation and Recovery Information System
HMIRS------------------------ Hazardous Materials Information Reporting System
PADS------------------------- PCB Activity Database System
FINDS:----------------------- Facility Index System
TRIS-------------------------- Toxic Chemical Release Inventory System
NPL Lien:-------------------- NPL Liens
MLTS------------------------- Material Licensing Tracking System
ROD-------------------------- ROD
CONSENT-------------------- Supedund (CERCLA) Consent Decrees
Coal Gas:-------------------- Former Manufactured gas (Coal Gas) Sites.
Unmapped (orphan) sites are not considered in the foregoing analysis.
Search Results:
Search results for the subject property and the search radius, are listed below:
Subject Property:
The subject property was identified in the following government records. For more information on this
property see page 9 of the attached EDR Radius Map report:
Database(s) EPA ID
OCCIDENTAL FACILITY OFF OF STATE RD 1002 ERNS N/A
OCCIDENTAL FACILITY OFF OF STATE RD 1002
CASTLE HAYNE, NC
TC245866.1s EXECUTIVE SUMMARY 1

OCCIDENTAL CHEM CORP TSCA N/A
PO BOX 368
CASTLE HAYNE, NC 28429
TC245866.1s EXECUTIVE SUMMARY 2

Surrounding Properties:
Elevations have been determined from the USGS 1 degree Digital Elevation Model and should be evaluated
on a relative (not an absolute) basis. Relative elevation information between sites of close proximity
should be field verified. EDR's definition of a site with an elevation equal to the subject property
includes a tolerance of -10 feet. Sites with an elevation equal to or higher than the subject property
have been differentiated below from sites with an elevation lower than the subject property (by more than
10 feet). Page numbers and map identification numbers refer to the EDR Radius Map report where detailed
data on individual sites can be reviewed.
Sites listed in bold italics are in multiple databases.
HSDS: The Hazardous Substance Disposal Sites list contains locations of uncontrolled and unregulated
hazardous waste sites. The file contains sites on the national priority list as well as the state priority list.
The data source is the North Carolina Center for Geographic Information and Analysis.
A review of the NC HSDS list, as provided by EDR, and dated 06/21/1995 has revealed that there are 3
NC HSDS sites within approximately 0.5 Miles of the subject property.
Equal/Higher Elevation Address Dist / Dir Map ID Page
DIAMOND SHAMROCK CORP 0-1/8 0
DIAMOND SHAMROCK MARTIN MARIET 1/8-1/4 0
IDEAL BASIC INDS/PLANT MARL OU 1/4-1/2 0
TC245866.1s EXECUTIVE SUMMARY 3

EXECUzTIYE SUMMARY
Due to poor or inadequate address information, the following sites were not mapped:
Site Name
DIAMOND SHAMROCK
IDEAL BASIC INDS/PLANT
REASOR CHEMICAL
REASOR CHEMICAL CO
DIAMOND SHAMROCK
BRYANT'S TEXACO (FORMER)
ROCKY POINT TRADING POST
DAVIS FOODS
DICKERSON CAROLINA INC.
Database(s)
SHWS
SHWS
SHWS
CERCLIS,FINDS
RCRIS-SQG, FI N DS, RAATS
TSCA,CERC-NFRAP
LUST
LUST
LUST
UST
TC245866.1s EXECUTIVE SUMMARY

GEOCHECK dERS10N 2.1 h
SUMMARY
TARGET PROPERTY COORDINATES
Latitude (North):
34.375401 - 34` 22' 31.4"
Longitude (West):
77.855301 - 77` 51' 19.1"
Universal Transverse Mercator:
Zone 18
UTM X (Meters):
237439.1
UTM Y (Meters):
3807281.0
GEOLOGIC AGE IDENTIFICATIONt
Geologic Code:
Te
Era:
Cenozoic
System:
Tertiary
Series:
Eocene
ROCK STRATIGRAPHIC UNITt
Category: Stratited Sequence
GROUNDWATER FLOW INFORMATION
Groundwater flow direction for a particular site is best determined by a qualified environmental professional using
site -specific well data. If such data is not reasonably ascertainable, it may be necessary to rely on other sources of
information, including well data collected on nearby properties, regional groundwater flow information (from deep
aquifers), or surface topography.*
General Topographic Gradient: General NW
General Hydrogeologic Gradient: No hydrogeologic data available.
USGS TOPOGRAPHIC MAP ASSOCIATED WITH THIS SITE
Target Property: 2434077-D7 MOORETOWN, NC
FEDERAL DATABASE WELL INFORMATION
WELL DISTANCE DEPTH TO
QUADRANT FROM TP LITHOLOGY WATER TABLE
Western 112 - 1 Mile Not Reported Not Reported
STATE DATABASE WELL INFORMATION
WELL
DISTANCE
QUADRANT
FROM TP
Northern
>2 Miles
Southern
1 - 2 Miles
Western
1/2 - 1 Mile
NORTH CARLOLINA LOCATIONS OF RARE AND ENDANGERED SPECIES DATABASE:
ID Class
4125
Natural Community Occurrence
7556
Natural Community Occurrence
8881
Plants
10053
Natural Community Occurrence
10457
Plants
t Sou E rce: P.G. Schruben, RE. Amdl and WJ. Bamec. Geology el to, OmlermwU.S. ins Uat 1:2.5.000 Scale- A digital representation of ]he 1974 P.O. Ang and H.M, Belkman Map, USGS Digital Dale Snies ODS-11 (199,
t U.S. EPA Ground Water handbook. Vol I: Ground Water antl OonNmination, Mee of Research and development EWy625/69D�01 W.CM1apter4, page 70. Beplember 1990,
TC245866.1s Page3

STATE DATABASE INFORMATION
NORTH CARLOLINA LOCATIONS OF RARE AND ENDANGERED SPECIES DATABASE:
ID Class
12551 Natural Community Occurrence
13505 Plants
13754 Animal
NORTH CAROLINA NATURAL AREAS DATABASE:
ID Name
NO RECORDS FOUND
NORTH CARLOLINA WILDLIFE RESOURCES COMMISSION GAME LANDS DATABASE:
Site Name
NO RECORDS FOUND
PUBLIC WATER SUPPLY SYSTEM INFORMATION
Searched by Nearest PWS.
NOTE: PWS System location is not always the same as well location.
PWS Name: PIZZA INN
5709 OLEANDER DR
WILMINGTON, NC28409
Location Relative to TP: 1/2-1 Mile West
PWS currently has or has had major violation(s): No
AREA RADON INFORMATION
EPA Radon Zone for NEW HANOVER County: 3
Note: Zone 1 indoor average level > 4 pCi/L
Zone 2 indoor average level >= 2 pCi/L and <= 4 pCi/L.
Zone 3 indoor average level < 2 pCi/L
Zip Code: 28429
Number of sites tested: 1
Area
Living Area- 1st Floor
Living Area - 2nd Floor
Basement
Average Activity % <4 pCi/L
0.200 pCi/L 100%
Not Reported Not Reported
Not Reported Not Reported
%4-20 pCi/L
%>20 pCi/L
0%
0%
Not Reported
Not Reported
Not Reported
Not Reported
TC245866.1s Page 4

ING MAP FIN DINGS•S.IJMMAF3Y SHOW
ALLiSITES: r
Search
Target
Distance
Total
Database
Property
(Miles)
<1/8
1/8-1/4
1/4-1/2
1/2-1
>1
Plotted
NPL
1.000
0
0
0
0
NR
0
Delisted NPL
TP
NR
NR
NR
NR
NR
0
RCRIS-TSD
0.500
0
0
0
NR
NR
0
State Haz. Waste
1.000
0
0
0
0
NR
0
CERCLIS
0.500
0
0
0
NR
NR
0
CERC-NFRAP
TP
NR
NR
NR
NR
NR
0
CORRACTS
1.000
0
0
0
0
NR
0
State Landfill
0.500
0
0
0
NR
NR
0
LUST
0.500
0
0
0
NR
NR
0
UST
0.250
0
0
NR
NR
NR
0
RAATS
TP
NR
NR
NR
NR
NR
0
RCRIS Sm. Quan. Gen.
0.250
0
0
NR
NR
NR
0
RCRIS Lg. Quan. Gen.
0.250
0
0
NR
NR
NR
0
HMIRS
TP
NR
NR
NR
NR
NR
0
PADS
TP
NR
NR
NR
NR
NR
0
ERNS
X
TP
NR
NR
NR
NR
NR
0
FINDS
TP
NR
NR
NR
NR
NR
0
TRIS
TP
NR
NR
NR
NR
NR
0
NPL Liens
TP
NR
NR
NR
NR
NR
o
NC HSDS
0.500
1
1
1
NR
NR
3
TSCA
X
TP
NR
NR
NR
NR
NR
0
MLTS
TP
NR
NR
NR
NR
NR
0
ROD
1.000
0
0
0
0
NR
0
CONSENT
1.000
0
0
0
0
NR
0
Coal Gas
1.000
0
0
0
0
NR
0
TP = Target Property
NR = Not Requested at this Search Distance
" Sites may be listed in more than one database
TC245866.1 s Page 7

Search
Target
Distance
Total
Database
Property
(Miles)
< 1/8
1/8-1/4
1/4-1/2
1/2-1
> 1
Plotted
NPL
1.000
0
0
0
0
NR
0
Delisted NPL
TP
NR
NR
NR
NR
NR
0
RCRIS-TSD
0.500
0
0
0
NR
NR
0
State Haz. Waste
1.000
0
0
0
0
NR
0
CERCLIS
0.500
0
0
0
NR
NR
0
CERC-NFRAP
TP
NR
NR
NR
NR
NR
0
CORRACTS
1.000
0
0
0
0
NR
0
State Landfill
0.500
0
0
0
NR
NR
0
LUST
0.500
0
0
0
NR
NR
0
UST
0.250
0
0
NR
NR
NR
0
RAATS
TP
NR
NR
NR
NR
NR
0
RCRIS Sm. Quan. Gen.
0.250
0
0
NR
NR
NR
0
RCRIS Lg. Quan. Gen.
0.250
0
0
NR
NR
NR
0
HMIRS
TP
NR
NR
NR
NR
NR
0
PADS
TP
NR
NR
NR
NR
NR
0
ERNS
X
TP
NR
NR
NR
NR
NR
0
FINDS
TP
NR
NR
NR
NR
NR
0
TRIS
TP
NR
NR
NR
NR
NR
0
NPL Liens
TP
NR
NR
NR
NR
NR
0
NC HSDS
0.500
1
1
1
NR
NR
3
TSCA
X
TP
NR
NR
NR
NR
NR
0
MLTS
TP
NR
NR
NR
NR
NR
0
ROD
1.000
0
0
0
0
NR
0
CONSENT
1.000
0
0
0
0
NR
0
Coal Gas
1.000
0
0
0
0
NR
0
TP = Target Property
NR = Not Requested at this Search Distance
Sites may be listed in more than one database
TC245866.1 s Page 8

Map ID
Direction
Distance
Elevation Site
EDR ID Number
Database(s) EPA ID Number
Coal Gas Site Search: No site was found in a search of Real Property Scan's ENVIROHAZ database.
A2
Target
Property
OCCIDENTAL FACILITY OFF OF STATE RD 1002
OCCIDENTAL FACILITY OFF OF STATE RD 1002
CASTLE HAYNE, NC
ERNS
Al
OCCIDENTAL CHEM CORP
TSCA
Target
PO BOX 368
Property
CASTLE HAYNE, NC 28429
HSDS
DIAMOND SHAMROCK CORP
NC HSDS
Region
NC
NC HSDS:
Facility Name: DIAMOND SHAMROCK CORP
Latitude: 3422 21.425510
Longitude: 77 51 39.120003
Site Type: Federal
Superfund ID #: 057 454 670
HSDS DIAMOND SHAMROCK MARTIN MARIETTA NC HSDS
Region
NC
NC HSDS:
Facility Name: DIAMOND SHAMROCK MARTIN MARIETTA
... - Latitude: 34 22 44.836195 Longitude: 77 51 14.492071
Site Type: Federal Superfund ID #: 042 890 525
HSDS IDEAL BASIC INDS/PLANT MARL QUARRY
Region
NC
NC HSDS:
NC HSDS
Facility Name: IDEAL BASIC INDS/PLANT MARL QUARRY
Latitude: 34 22 40.525489 Longitude: 77 50 43.662545
Site Type: Federal Superfund ID #: 980 557 839
8801386
N/A
1001205491
N/A
S102442934
N/A
S102442933
N/A
S102442932
N/A
TC245866.1 s Page 9

c
E
z
m
z
O
¢
❑
W
n
M d N O
N W W P
Q W W
n d W
W W W w w W
T Y T} T T z Z
w w w w w w
J J J J J J
w ww In w ww
<< < U U U
i

GEOCHEGK•VERSION 2.1 ADDENDl7M-s Y.
FEDERAL DATABASE WELL INFORMATION
i'
Well Closest to Target Property (Western Quadrant)
BASIC WELL DATA
Site ID:
342205077515401 Distance from TP:
1/2 - 1 Mile
Site Type:
Single well, other than collector or Penney type
Year Constructed:
1965 County:
New Hanover
Altitude:
15.93 ft. State:
North Carolina
Well Depth:
31.00 ft. Topographic Setting:
Flat surface
Depth to Water Table:
Not Reported Prim. Use of Site:
Observation
Date Measured:
Not Reported Prim. Use of Water:
Unused
LITHOLOGIC DATA
Geologic Age ID (Era/System/Series): Cenozoic -Tertiary -Eocene
Principal Lithology of Unit:
Not Reported
Further Description:
Not Reported
WATER LEVEL VARIABILITY
Not Reported
TC245866.1s Page At

Water Well Information:
Site Name:
Public Water Sys. ID:
Latitude:
Source Name:
Responsible Party Tel.:
Retail Population:
Site Name:
Public Water Sys. ID:
Latitude:
Source Name:
Responsible Parry Tel.:
Retail Population:
Site Name:
Public Water Sys. ID:
Latitude:
Source Name:
Responsible Party Tel.:
Retail Population:
Well Within >2 Miles of Target Property (Northern Quadrant)
ROCKY POINT BAPT CH
0471433
342500.000
WELL
[phone]
130
PWS Type:
Longitude:
Source Type:
Source Availability:
Transient Non -community
775320.000
Ground
Permanent
Well Within 1 - 2 Miles of Target Property (Southern Quadrant)
OCCIDENTAL CHEMICAL
0465523
342120.000
WELL #7
[phone]
150
PWS Type:
Longitude:
Source Type:
Source Availability:
Non -transient Non -community
775130.000
Ground
Permanent
Well Within 1/2 - 1 Mile of Target Property (Western Quadrant)
PIZZA INN
0465568
PWS Type:
342300.000
Longitude:
WELL #1
Source Type:
[phone]
Source Availability:
100
Transient Non -community
775200.000
Ground
Permanent
TC245866.1s Page A2

GEOCHECK VERSION, 2.1
STATE DATABASE WELL INFORMATION
North Carlolina Locations of Rare and Endangered Species:
Site ID:
4125
Latitude / Longitude:
34.3667 /-77.8825
Classification by Type:
Natural Community Occurrence
Degree of Accuracy associated with coordinate:
Minutes
Site ID:
7556
Latitude / Longitude:
34.3708 /-77.8828
Classification by Type:
Natural Community Occurrence
Degree of Accuracy associated with coordinate:
Minutes
Site ID:
8881
Latitude / Longitude:
34.3881 /-77.8508
Classification by Type:
Plants
Degree of Accuracy associated with coordinate:
Minutes
Site ID:
10053
Latitude / Longitude:
34.3881 /-77.8508
Classification by Type:
Natural Community Occurrence
Degree of Accuracy associated with coordinate:
Minutes
Site ID:
10457
Latitude / Longitude:
34.3486 /-77.8889
Classification by Type:
Plants
Degree of Accuracy associated with coordinate:
Minutes
Site ID:
12551
_ Latitude / Longitude:
34.3778 /-77.8783
Classification by Type:
Natural Community Occurrence
Degree of Accuracy associated with coordinate:
Minutes
Site ID:
13505
Latitude / Longitude:
34.3661 /-77.8167
Classification by Type:
Plants
Degree of Accuracy associated with coordinate:
Seconds
Site ID:
13754
Latitude / Longitude:
34.3889 /-77.8931
Classification by Type:
Animal
Degree of Accuracy associated with coordinate:
General
TC245866.1 s Page A3

Searched by Nearest PWS.
PWS SUMMARY:
PWS ID:
NC0465568 PWS Status:
Active
Distance from TP: 1/2 - 1 Mile
Date Initiated:
January/ 1994 Date Deactivated:
Not Reported
Dir relative to TP: West
PWS Name:
PIZZA INN
5709 OLEANDER DR
WILMINGTON, NC28409
Addressee / Facility:
System Owner/Responsible Party
LON CARRUTH OR MANAGER NOW
PO BOX 7084
ROCKY MOUNT, NC 27803
Addressee / Facility:
System Owner/Responsible Parry
TLC MANAGEMENT CORPORATION
PO BOX 7084
ROCKY MOUNT, NC 27803
Facility Latitude:
34 13 32
Facility Longitude:
077 56 42
Facility Latitude:
34 23 00
Facility Longitude:
077 52 00
City Served:
WILMINGTON
Treatment Class:
Untreated
Population Served: Under 101 Persons
PWS currently has or has had major violation(s): No
TC245866.1s Page A4

To maintain currency of the following federal and state databases, EDR contacts the appropriate governmental agency
on a monthly or quarterly basis, as required.
Elapsed ASTM days: Provides confirmation that this EDR report meets or exceeds the 90-day updating requirement
of the ASTM standard.
FEDERAL ASTM RECORDS:
CERCLIS: Comprehensive Environmental Response, Compensation, and Liability Information System
Source: EPA/NTIS
Telephone: [phone]
CERCLIS contains data on potentially hazardous waste sites that have been reported to the USEPA by states, municipalities,
private companies and private persons, pursuant to Section 103 of the Comprehensive Environmental Response, Compensation,
and Liability Act (CERCLA). CERCLIS contains sites which are either proposed to or on the National Priorities
List (NPL) and sites which are in the screening and assessment phase for possible inclusion on the NPL
Date of Government Version: 12/31/97 Date of Data Arrival at EDR: 02/17/96
Date Made Active at EDR: 04/13198 Elapsed ASTM days: 55
Database Release Frequency: Quarterly - Date of Last EDR Contact: 01/05/98
ERNS: Emergency Response Notification System
Source: EPA/NTIS
Telephone: [phone]
Emergency Response Notification System. ERNS records and stores information on reported releases of oil and hazardous
substances.
Date of Government Version: 09/30/97 Date of Data Arrival at EDR: 12/04/97
Date Made Active at EDR: 01/02/98 Elapsed ASTM days: 29
Database Release Frequency: Quarterly Date of Last EDR Contact: 03/05/98
NPL: National Priority List
Source: EPA
Telephone: [phone]
National Priorities List (Superfund). The NPL is a subset of CERCLIS and identifies over 1,200 sites for priority
cleanup under the Supedund Program. NPL sites may encompass relatively large areas. As such, EDR provides polygon
coverage for over 1,000 NPL site boundaries produced by EPA's Environmental Photographic Interpretation Center
(EPIC).
Date of Government Version: 09/25/97 Date of Data Arrival at EDR: 09/26/97
Date Made Active at EDR: 11128/97 Elapsed ASTM days: 63
Database Release Frequency: Semi -Annually Date of Last EDR Contact: 02/06/98
RCRIS: Resource Conservation and Recovery Information System
Source: EPA/NTIS
Telephone: [phone]
Resource Conservation and Recovery Information System. RCRIS includes selective information on sites which generate,
transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery
Act (RCRA).
Date of Government Version: 01/O1198 Date of Data Arrival at EDR: 02/17/98
Date Made Active at EDR: 04/13/98 Elapsed ASTM days: 55
Database Release Frequency: Semi -Annually Date of Last EDR Contact: 02/10/98
CORRACTS: Corrective Action Report
Source: EPA
Telephone: [phone]
CORRACTS identifies hazardous waste handlers with RCRA corrective action activity.
Date of Government Version: 12/15/97 Date of Data Arrival at EDR: O1/05/98
Date Made Active at EDR: 02/02/98 Elapsed ASTM days: 28
Database Release Frequency: Semi -Annually Date of Last EDR Contact: 04/13/98
TC245866.1 s Page A5

FEDERAL NON-ASTM RECORDS:
BRS: Biennial Reporting System
Source: EPA/NTIS
Telephone: [phone]
The Biennial Reporting System is a national system administered by 1he EPA that collects data on the generation
and management of hazardous waste. BRS captures detailed data from two groups: Large Quantity Generators (LQG)
and Treatment, Storage, and Disposal Facilities.
Date of Government Version: 12/31/95
Database Release Frequency: Biennially
Date of Last EDR Contact: 03/24/98
Date of Next Scheduled EDR Contact: 06/22/98
CONSENT: Superfund (CERCLA) Consent Decrees
Source: EPA Regional Offices
Telephone: Varies
Major legal settlements that establish responsibility and standards for cleanup at NPL (Supertund) sites. Released
periodically by United States District Courts after settlement by parties to litigation matters.
Date of Government Version: Varies
Database Release Frequency: Varies
Date of Last EDR Contact: Varies
Date of Next Scheduled EDR Contact: N/A
FINDS: Facility Index System
Source: EPA/NTIS
Telephone: [phone]
Facility Index System. FINDS contains both facility information and 'pointers'to other sources that contain more
detail. EDR includes the following FINDS databases in this report: PCS (Permit Compliance System), AIRS (Aerometric
Information Retrieval System), DOCKET (Enforcement Docket used to manage and track information on civil judicial
enforcement cases for all environmental statutes), FURS (Federal Underground Injection Control), C-DOCKET (Criminal
Docket System used to track criminal enforcement actions for all environmental statutes), FFIS (Federal Facilities
Information System), STATE (State Environmental Laws and Statutes), and PADS (PCB Activity Data System).
Date of Government Version: 04/01/97
Database Release Frequency: Quarterly
Date of Last EDR Contact: 02/26/98
Date of Next Scheduled EDR Contact: 06/22/98
HMIRS: Hazardous Materials Information Reporting System
Source: U.S. Department of Transportation
Telephone: [phone]
Hazardous Materials Incident Report System. HMIRS contains hazardous material spill incidents reported to DOT.
Date of Government Version: 12/31/96
Database Release Frequency: Annually
Date of Last EDR Contact: 03/31/98
Date of Next Scheduled EDR Contact: 07/27/98
WILTS: Material Licensing Tracking System
Source: Nuclear Regulatory Commission
Telephone: [phone]
MLTS is maintained by the Nuclear Regulatory Commission and contains a list of approximately 8,100 sites which
possess or use radioactive materials and which are subject to NRC licensing requirements. To maintain currency,
EDR contacts the Agency on a quarterly basis.
Date of Government Version: 01/30/98
Database Release Frequency: Quarterly
Date of Last EDR Contact: 04/13/98
Date of Next Scheduled EDR Contact: 07/13/98
NPL LIENS: Federal Supertund Liens
Source: EPA
Telephone: [phone]
Federal Supertund Liens. Under the authority granted the USEPA by the Comprehensive Environmental Response, Compensation
and Liability Act (CERCLA) of 1980, the USEPA has the authority to file liens against real property in order
to recover remedial action expenditures or when the property owner receives notification of potential liability.
USEPA compiles a listing of filed notices of Supertund Liens.
Date of Government Version: 10/15/91
Database Release Frequency: No Update Planned
Date of Last EDR Contact: 02/23/98
Date of Next Scheduled EDR Contact: 05/25/98
TC245866.1 s Page A6

PADS: PCB Activity Database System
Source: EPA
Telephone: [phone]
PCB Activity Database. PADS Identifies generators, transporters, commercial storers and/or brokers and disposers
of PCB's who are required to notify the EPA of such activities.
Date of Government Version: 09/22/97
Database Release Frequency: Semi -Annually
Date of Last EDR Contact: 02/16/98
Date of Next Scheduled EDR Contact: 05/18/98
RAATS: RCRA Administrative Action Tracking System
Source: EPA
Telephone: [phone]
RCRA Administration Action Tracking System. RAATS contains records based on enforcement actions issued under RCRA
pertaining to major violators and includes administrative and civil actions brought by the EPA. For administration
actions after September 30, 1995, data entry in the RAATS database was discontinued. EPA will retain a copy of
the database for historical records. It was necessary to terminate RAATS because a decrease in agency resources
made it impossible to continue to update the information contained in the database.
Date of Government Version: 04/17/95
Database Release Frequency: No Update Planned
Date of Last EDR Contact: 03/17/98
Date of Next Scheduled EDR Contact: 06/15/98
ROD: Records Of Decision
Source: NTIS
Telephone: [phone]
Record of Decision. ROD documents mandate a permanent remedy at an NPL (Superfund) site containing technical
and health information to aid in the cleanup.
Date of Government Version: 03/31/95
Database Release Frequency: Annually
Date of Last EDR Contact: 04/08/98
Date of Next Scheduled EDR Contact: 06/01/98
TRIS: Toxic Chemical Release Inventory System
Source: EPA/NTIS
Telephone: [phone]
Toxic Release Inventory System. TRIS identifies facilities which release toxic chemicals to the air, water and
land in reportable quantitiesunder SARA Title III Section 313.
Date of Government Version: 12/31/95
Database Release Frequency: Annually
Date of Last EDR Contact: 03/31/98
Date of Next Scheduled EDR Contact: 06/29/98
TSCA: Toxic Substances Control Act
Source: EPA/NTIS
Telephone: [phone]
Toxic Substances Control Act. TSCA identifies manufacturers and importers of chemical substances included on the
TSCA Chemical Substance Inventory list. It includes data on the production volume of these substances by plant
site. USEPA has no current plan to update and/or re -issue this database.
Date of Government Version: 01/31/95
Database Release Frequency: Annually
Date of Last EDR Contact: 03/16/98
Date of Next Scheduled EDR Contact: 05/15/98
TC245866.1 s Page A7

STATE OF NORTH CAROLINA ASTM RECORDS:
LUST: Incidents Management Database
Source: Department of Environment, Health and Natural Resources
Telephone: [phone]
Leaking Underground Storage Tank Incident Reports. LUST records contain an inventory of reported leaking underground
storage tank incidents. Not all states maintain these records, and the information stored varies by state.
Date of Government Version: 02/01/98
Date Made Active at EDR: 04/10/98
Database Release Frequency: Quarterly
Date of Data Arrival at EDR: 03/11/98
Elapsed ASTM days: 30
Date of Last EDR Contact: 02/02/98
SHWS: Inactive Hazardous Sites Inventory
Source: Department of Environment, Health and Natural Resources
Telephone: [phone]
State Hazardous Waste Sites. State hazardous waste site records are the states' equivalent to CERCLIS. These sites
may or may not already be listed on the federal CERCLIS list. Priority sites planned for cleanup using state funds
(state equivalent of Superfund) are identified along with sites where cleanup will be paid for by potentially
responsible parties. Available information varies by state.
Date of Government Version: 03/25/97
Date Made Active at EDR: 06/30/97
Database Release Frequency: Annually
Date of Data Arrival at EDR: 04/28/97
Elapsed ASTM days: 63
Date of Last EDR Contact: 03/24/98
LF: List of Solid Waste Facility
Source: Department of Environment, Health and Natural Resources
Telephone: [phone]
Solid Waste Facilities/Landfill Sites. SW F/LF type records typically contain an Inventory of solid waste disposal
facilities or landfills in a particular stale. Depending on the state, these may be active or inactive facilities
or open dumps that failed to meet RCRA Subtitle D Section 4004 criteria for solid waste landfills or disposal
sites.
Date of Government Version: 01/02/98
Date Made Active at EDR: 04/10/98
Database Release Frequency: Semi -Annually
Date of Data Arrival at EDR: 03/11/98
Elapsed ASTM days: 30
Date of Last EDR Contact: 02/02/98
UST: Petroleum Underground Storage Tank Database
Source: Department of Environment, Health and Natural Resources
Telephone: [phone]
Registered Underground Storage Tanks. UST's are regulated under Subtitle I of the Resource Conservation and Recovery
Act (RCRA) and must be registered with the state department responsible for administering the UST program. Available
information varies by state program.
Date of Government Version: 07/01/97 Date of Data Arrival at EDR: 08/04/97
Date Made Active at EDR: 10/16/97 Elapsed ASTM days: 73
Database Release Frequency: Quarterly Date of Last EDR Contact: 03/16/98
STATE OF NORTH CAROLINA NON-ASTM RECORDS:
HSDS: Hazardous Substance Disposal Site
Source: North Carolina Center for Geographic Information and Analysis
Telephone: [phone]
Locations of uncontrolled and unregulated hazardous waste sites. The file includes sites on the National Priority
List as well as those on the state priority list.
Date of Government Version: 06/21/95
Database Release Frequency: Biennially
Date of Last EDR Contact: 03/09/95
Date of Next Scheduled EDR Contact: 06/08/98
TC245866.1 s Page A8

Historical and Other Database(s)
Depending on the geographic area covered by this report, the data provided in these specialty databases may or may not be
complete. For example, the existence of wetlands information data in a specific report does not mean that all wetlands in the
area covered by the report are included. Moreover, the absence of any reported wetlands information does not necessarily
mean that wetlands do not exist in the area covered by the report.
Former Manufactured Gas (Coal Gas) Sites: The existence and location of Coal Gas sites is provided exclusively to
EDR by Real Property Scan, Inc. @Copyright 1993 Real Property Scan, Inc. For a technical description of the types
of hazards which may be found at such sites, contact your EDR customer service representative.
Disclaimer Provided by Real Property Scan, Inc.
The information contained in this report has predominantly been obtained from publicly available sources produced by entities
other than Real Property Scan. While reasonable steps have been taken to insure the accuracy of this report, Real Property
Scan does not guarantee the accuracy of this report. Any liability on the part of Real Property Scan is strictly limited to a refund
of the amount paid. No claim is made for the actual existence of toxins at any site. This report does not constitute a legal
opinion.
DELISTED NPL: NPL Deletions
Source: EPA
Telephone: [phone]
The National Oil and Hazardous Substances Pollution Contingency Plan (NCP) establishes the criteria that the
EPA uses to delete sites from the NPL In accordance with 40 CFR 300.425.(e), sites maybe deleted from the
NPL where no further response is appropriate.
Date of Government Version: 09/25/97
Date Made Active at EDR: 11/28/97
Database Release Frequency: Semi -Annually
Date of Data Arrival at EDR: 09/26/97
Elapsed ASTM days: 63
Date of Last EDR Contact: 02/06/98
NFRAP: No Further Remedial Action Planned
Source: EPA/NTIS
Telephone: [phone]
As of February 1995, CERCLIS sites designated "No Further Remedial Action Planned" (NFRAP) have been removed
from CERCUS. NFRAP sites may be sites where, following an initial investigation, no contamination was found,
contamination was removed quickly without the need for the site to be placed on the NPL, or the contamination
was not serious enough to require Federal Supertund action or NPL consideration. EPA has removed approximately
25,000 NFRAP sites to lift the unintended barriers to the redevelopment of these properties and has archived them
as historical records so EPA does not needlessly repeat the investigations in the future. This policy change is
part of the EPA's Brownfelds Redevelopment Program to help cities, states, private investors and affected citizens
to promote economic redevelopment of unproductive urban sites.
Date of Government Version: 12/31/97 Date of Data Arrival at EDR: 02/17/98
Date Made Active at EDR: 04/13/98 Elapsed ASTM days: 55
Database Release Frequency: Quarterly Date of Last EDR Contact: 01/05/98
PWS: Public Water Systems
Source: EPA/Office of Drinking Water
Telephone: [phone]
Public Water System data from the Federal Reporting Data System. A PWS is any water system which provides water to at
least 25 people for at least 60 days annually. PWSs provide water from wells, rivers and other sources.
PWS ENF: Public Water Systems Violation and Enforcement Data
Source: EPA/Office of Drinking Water
Telephone: [phone]
Violation and Enforcement data for Public Water Systems from the Sale Drinking Water Information System (SWDIS) after
I August 1995. Prior to August 1995, the data came from the Federal Reporting Data System (FRDS).
TC245866.1 s Page A9

Area Radon Information: The National Radon Database has been developed by the U.S. Environmental Protection Agency
( (USEPA) and is a compilation of the EPA/State Residential Radon Survey and the National Residential Radon Survey. The
-- study covers the years 1986 - 1992. Where necessary data has been supplemented by information collected at private sources
such as universities and research institutions.
Oil/Gas Pipelines/Electrical Transmission Lines: This data was obtained by EDR from the USGS in 1994. It is referred to by
USGS as GeoData Digital Line Graphs from 1:100,000-Scale Maps. It was extracted from the transportation category Including
some oil, but primarily gas pipelines and electrical transmission lines.
Sensitive Receptors: There are individuals deemed sensitive receptors due to their fragile immune systems and special sensitivity
to environmental discharges. These sensitive receptors typically include the elderly, the sick, and children. While the location of all
sensitive receptors cannot be determined, EDR indicates those buildings and facilities - schools, daycares, hospitals, medical centers,
and nursing homes - where individuals who are sensitive receptors are likely to be located.
USGS Water Wells: In November 1971 the United States Geological Survey (USGS) implemented a national water resource
information tracking system. This database contains descriptive information on sites where the USGS collects or has collected
data on surface water and/or groundwater. The groundwater data includes information on more than 900,000 wells, springs, and
other sources of groundwater.
Flood Zone Data: This data, available in select counties across the country, was obtained by EDR in 1996 from the Federal
Emergency Management Agency (FEMA). Data depicts 100-year and 500-year flood zones as defined by FEMA.
NWI: National Wetlands Inventory. This data, available in select counties across the country, was obtained by EDR
in March 1997 from the U.S. Fish and Wildlife Service.
Epicenters: World earthquake epicenters, Richter 5 or greater
Source: Department of Commerce, National Oceanic and Atmospheric Administration
Water Dams: National Inventory of Dams
Source: Federal Emergency Management Agency
Telephone: [phone]
1/ National computer database of more than 74,000 dams maintained by the Federal Emergency Management Agency.
North Carolina Wildlife Resources/Game Lands
Source: Center for Geographic Information and Analysis
Telephone: [phone]
All publicly owned game lands managed by the North Carolina Wildlife Resources Commission and as listed in Hunting
and Fishing Maps for North Carolina Game Lands, 1989-90.
North Carolina Rare/Endangered Species and Natural Areas
Source: Natural Heritage Occurrence Sites Center for Geographic Information and Analysis
Telephone: [phone]
North Carolina Public Water Supply Wells
Source: Department of Environmental Health
Telephone: [phone]
TC245866.1s Page At

APPENDIX G
NORTH CAROLINA DEPARTMENT OF ENVIRONMENT
AND NATURAL RESOURCES
WATER WELL SEARCH DOCUMENTATION

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PWS Data Elements with Codes
Codes & Meanings
PWS Activity Indicator A=active
(INV STATUS)
I=inactive
PWS Owner Type
1=Fed Govt 6=Non-profit Assoc
(INV_OWNR_TYP)
2=Private 7=Homeowners Assoc
3=State Govt 6=Sanitary District
4=Local Govt 9=Other
5=Mixed Public/Private
PWS System Location
Region-EHNR 1=Asheville 5=Fayetteville
(INV_EHNR_RGN)
2=Mooresville 6=Washington
3=Winston-Salem 7=Wilmington
4=Raleigh
PWS Type
C=Community
(INV_PWS_TYPE)
system that serves 15 or more connections or
regularly serves 25 or more year-round residents.
ex: cities, towns, subdivisions, MHPs, etc
P=Non-transient Non -community
system that regularly serves atleast 25 of the same
persons 6 or more months per year.
ex: schools, daycares, industries, etc
N=TransientNon-community
systems that serves 25 or more people atleast 60
days per year.
ex: restaurants, DOT rest areas, churches, etc
A=Adjacent (State definition)
two or more systems that are adjacent, are owned
or operated by the same supplier of water, and
together serve 15 or more connections or 25 or
more persons--e.g. together meet the community
definition.
R=Campground (State definition)
system that serves 15 or more connections and not
serving 25 or more of the same persons more than 6
months per year.
ex: campgrounds, travel trailer parks, marinas, etc
PWS Source Availability
(SRC SRC AVL)
PWS Source Code
(SRC —SRC —TYPE)
P=Permanent
E=Emergency
S=Seasonal
I=Interim
O=Other
S=Surface
G=Ground
P=Purchase surface
W=Purchase ground
Y=G w/ direct influence of S
Z=W w/ direct influence of S

COUNTY CODE TABLE
Code
County
Code
County
01
Alamance
55
Lincoln
02
Alexander
56
Macon
03
Alleghany
57
Madison
04
Anson
58
Martin
05
Ashe
59
McDowell
06
Avery
60
Mecklenburg
07
Beaufort
61
Mitchell
08
Bertie
62
Montgomery
09
Bladen
63
Moore
10
Brunswick
64
Nash
11
Buncombe
65
New hanover
12
Burke
66
Northampton
13
Cabarrus
67
Onslow
14
Caldwell
68
Orange
15
Camden
69
Pamlico
16
Carteret
70
Pasquotank
17
Caswell
71
Pender
18
Catawba
72
Perquimans
19
Chatham
73
Person
20
Cherokee
74
Pitt
21
Chowan
75
Polk
22
Clay
76
Randolph
23
Cleveland
77
Richmond
--
24
Columbus
78
Robeson
25
Craven
79
Rockingham
---
26
Cumberland
80
Rowan
27
Currituck
81
Rutherford
28
Dare
82
Sampson
29
Davidson
83
Scotland
30
Davie
84
Stanly
31
Duplin
85
Stokes
32
Durham
86
Surry
33
Edgecombe
87
Swain
34
Forsyth
88
Transylvania
35
Franklin
99
Tyrell
36
Gaston
90
Union
37
Gates
91
Vance
38
Graham
92
Wake
39
Granville
93
Warren
40
Greene
94
Washington
41
Guilford
95
Watauga
42
Halifax
96
Wayne
43
Harnett
97
Wilkes
44
Haywood
98
Wilson
45
Henderson
99
Yadkin
46
Hertford
00
Yancey
47
Hoke
48
Hyde
49
Iredell
50
Jackson
-
51
Johnston
52
Jones
\
53
Lee
54
Lenoir

From: DEH Web Server
Subject: Your PWS data is enclosed
Sent On: 04/16 02:51 PM ET
Return -Path: <[e-mail]>
Received: from bridget.deh.enr.state.nc.us ([e-mail]
[204.211.89.112])
by clminl-int.prodigy.com (8.8.5/8.8.5) with ESMTP id NAA16448
for <[e-mail]>; Thu, 16 Apr 1998 13:50:38 -0500
Received: (from www@localhost)
by bridget.deh.enr.state.nc.us (8.8.7/8.8.7) id OAA21394
for [e-mail]; Thu, 16 Apr 1998 14:50:36 -0400
Date: Thu, 16 Apr 1998 14:50:36 -0400
From: DEH Web Server <[e-mail]>
Message -Id: <[e-mail]>
To: [e-mail]
Subject: Your PWS data is enclosed
This information is being made available for review purposes only.
The accuracy of this data is not guaranteed.
For the most accurate data, please feel free to visit our central office
located at 2728 Capital Boulevard in Raleigh, NC.
The data above uses special codes that you will need to interpret.
You can find these codes at the following URL:
http://www.deh.ehnr.state.nc.us/pws/pws_data.htm
Attached to this email message is a uuencoded, self -extracting
archive named pwsdata.exe. Two things must happen before you
will be able to access the data in pwsdata.exe.
First you must uudecode this email message. Your email software
might (and I think should) do this for you. If it does not you
will need to save this message to a file (I'd call it pwsdata.uue)
and uudecode it yourself. Uudecode is a program available for DOS, Mac,
Windows, Unix, and several other operating systems.
The syntax is usually UUDECODE pwsdata.uue (or whatever you want
decoded).
Once you have uudecoded this message you will have a file named
pwsdata.exe
on your system. This is a self -extracting archive. If you are running DOS,
OS/2,
or Windows you may get to a DOS prompt and type PWSDATA.EXE. If you are
running
another OS you will have to obtain a PKZIP-compatible unzipper.
For uudecoding:
ftp://bridget.deh.ehnr.state.nc.us/pub/pc/uudvdO5d.zip
NOTE: pwsdata.exe is packaged on using Info-ZIP's
compression utility. Info-ZIP's software (Zip,
UnZip and related utilities) is free and can be obtained
as source code or executables from various bulletin board
services and anonymous-ftp sites, including CompuServe's
IBMPRO forum and ftp.cdrom.com/pub/infozip/
File Attachment: A:\PWSDATA.EXE
*** End of Message ***

APPENDIX H
GROUNDWATER FATE/TRANSPORT MODELING RESULTS
QUARRY TARGET CONCENTRATIONS
FOR SOURCE CONTROL

SUMMARY TABLE
TARGET COC CONCENTRATIONS IN QUARRY WATER
THAT CREATE NO EXCEEDANCE CONCENTRATIONS AT
THE COMPLIANCE BOUNDARY
MIT
MEMO,
........
. . . . . . . . . . . . . ..', . . . . . . . . . ....
.........
CHLORIDE
434
250 250
250
IRON
5.7
3.3 0.3
3
3.3
----L
TDS
868
500 500
500

�- DOMENICO GROUNDWATER TRANSPORT MODEL
MODELED MAXIMUM COC CONCENTRATIONS IN QUARRY (SECTION 1 OR 2) WATER THAT
WILL NOT RESULT IN GROUNDWATER STANDARD EXCEEDANCES AT THE POC
(40' SOURCE THICKNESS [UPPER AND LOWER AQUIFERS])
Domenico Model:
C(x)
C(WARRY) — S S
w
[erf 4(]]
�YX)in eff 4(«zxd
)irz
Where: C(QUARRY) = COC concentration in quarry water (mg/L)
C(x) = COC concentration (groundwater standard) at POC (mg/L)
x = Distance from Quarry edge to POC (it)
ax = Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = a)3
% = Vertical dispersivity (ft) = a /20
Sw = Source width (ft) (Typical length of quarry side)
Sd = Source thickness (ft) (Quarry depth penetrates
Upper and Lower Aquifers)
Chloride Groundwater Standard = 250 mg/L
Iron Groundwater Standard = 3.3 mg/L (Lower Aquifer)
TDS Groundwater Standard = 500 mg/L
x = 250 ft
aX = 25.00 It
o y = 8.33 It
a� = 1.25 It
Sw = 2,000 ft
Sd = 40 ft
Maximum,AlldHiable=CoHcehtrat ohiinl't2�tla�rie''s, ;9{E!(
C QUARR Chloride = 434 mg/L
CQUARR Iron = 5.7 mg/L
C UARR TDS = 868 mg/L
6448 1 CRA SERVICES

APPENDIX I
GROUNDWATER FATE/TRANSPORT MODELING RESULTS
ONE-YR-UPGRADIENT-TRAVEL TIME TO RECEPTORS

SUMMARY TABLE
DISTANCES FROM CPW WELLS TO
POTENTIAL RECEPTOR WELLS
DISTANCES IN FEET
CP`1�41' WELL
NE/?,FFEST
FC1T�IBLE
pOT/4BL1r OXyCHEIVf'WATER f
1NELLON
C0014 F
GL�,SSfFl1EDYYELL _ .:;,Sl1PPLY'WEd
fMAt2'#�i=I
ffM
k
,IUTARfETTIK 5....:,...
;_z.
7[7"VJELC:
Ti)S11'S'p`jR
'=TL7INELLf ;YiQial�}lrR.� :T�y9yy'��'Rk
5.'I'f�YVEI.L
.
CPW-5S
3,600
3,500
CPW-5D
3,600
3,500
CPW-12S
1,200
1,100
1,400
1,300 4,000
3,900
CPW-12D
1,200
1,100
1,400
1,300 4,000
3,900
CPW-13S
2,000
1,900
CPW-13D
2,000
1,900
NOTES: Assumed groundwater velocity is 100 feet per year, point one-year upgradient travel time
is, therefore, 100 feet less than the well -to -well distance.
SUMMARY TABLE
COC CONCENTRATIONS USED IN MODELING
mg/L

C.
DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-12S TO NEAREST POTABLE WELL ON COON HUNTER'S TRAIL
40' SOURCE THICKNESS (UPPER AQUIFER)
Domenico Model:
S
Xd
C(x) = C.,ce err 4( erf 4(n-
Where: C(x) = Concentration at a downgradient point (mg/L)
C� m = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
ax = Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = a„/3
az = Vertical dispersivity (ft) = o420
Sw, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Nearest potable well at residences on Coon Hunter's Trail
C.,,. Chloride =
22
mg/L
Csouro Iron =
38
mg/L
Csouro TDS =
1,900
mg/L
x=
1,100
It
aX =
110.00
It
ay =
36.67
It
(xz =
5.50
ft
Sw =
2,600
it
Sd =
40
It
(Well CPW-12S)
(Well CPW-12S)
(Well CPW-12S)
(Measured from well CPW-12S)
Concentration at Potential Receptor
Groundwater Standard
C Chloride = 3.2 m /L
250 m /L
C Iron = 5.48 m /L
7.3 m /I
C TDS = 274 m /L
500 m /L
6448
CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-12D TO NEAREST POTABLE WELL ON COON HUNTER'S TRAIL
40' SOURCE THICKNESS (LOWER AQUIFER)
Domenico Model:
S
C(x) = Csa,=e [erf 4(� erf 4(
Where: C(x) = Concentration at a downgradient point (mg/L)
C.,= = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
ax = Longitudinal dispersivity (ft) = 0.1 Ox
ay = Transverse dispersivity (ft) = ax/3
az = Vertical dispersivity (ft) = a,/20
S, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Nearest potable well at residences on Coon Hunter's Trail
C_
Cm � Chloride =
25
mg/L
Cm � Iron =
5.6
mg/L
C�u, TDS =
860
mg/L
x=
1,100
It
%=
110.00
It
ay =
36.67
It
% =
5.50
ft
Sw =
2,600
It
Sd =
40
It
(Well CPW-12D)
(Well CPW-12D)
(Well CPW-12D)
(Measured from well CPW-12D)
Concentration at Potential Receptor
Groundwater Standard
C Chloride = 3.6 mg/L
250 m /L
C Iron = 0.81 mg/L
3.3 mg/L
�Jl
C TDS = 124 mg/L
500 mg/L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-13S TO NEAREST POTABLE WELL ON COON HUNTER'S TRAIL
40' SOURCE THICKNESS (UPPER AQUIFER)
Domenico Model:
C(x) = C.U, erf erf
4(ayx) 4(aZx)
Where: C(x) = Concentration at a downgradient point (mg/L)
Cw � = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
%= Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = a,/3
% = Vertical dispersivity (ft) = a,120
SN, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Nearest potable well at residences on Coon Hunter's Trail
C_
Cwume Chloride =
17
mg/L
Cam„. Iron =
38
mg/L
C. TDS =
550
mg/L
x=
1,900
It
%=
190.00
ft
ay =
63.33
It
% =
9.50
It
SW =
2,600
ft
Sd =
40
It
(Well CPW-13S)
(Well CPW-13S)
(Well CPW-13S)
(Measured from well CPW-13S)
Concentration at Potential Receptor
Groundwater Standard
C Chloride = 1.4 m /L
250 m /L
C Iron = 3.17 m /L
10.5 m /I
C TDS = 46 mg/L
500 m /L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-13D TO NEAREST POTABLE WELL ON COON HUNTER'S TRAIL
40' SOURCE THICKNESS (LOWER AQUIFER)
Domenico Model:
Sd
C(x) = C... [erf 4( r� ert 4(
Where: C(x) = Concentration at a downgradient point (mg/L)
C.,,,e = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
%= Longitudinal dispersivity (ft) = 0.1 Ox
ay = Transverse dispersivity (ft) = ax/3
a= = Vertical dispersivity (ft) = a /20
S,w = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Nearest potable well at residences on Coon Hunter's Trail
C.,. Chloride =
37
mg/L
C.. Iron =
1.2
mg/L
C. TDS =
500
mg/L
x =
1,900
It
%=
190.00
It
ay =
63.33
ft
% =
9.50
It
S,,, =
2,600
ft
Sd =
40
ft
(Well CPW-13D)
(Well CPW-13D)
(Well CPW-13D)
(Measured from well CPW-13D)
Concentration at Potential Receptor
Groundwater Standard
C Chloride = 3.1 m /L
250 m /L
C Iron = 0.10 m /L
3.3 m /L
C TDS = 42 m /L
500 m /L
6448
CRA SERVICES

C
DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-5S TO MARTIN MARIETTA POTABLE WELL
40' SOURCE THICKNESS (UPPER AQUIFER)
Domenico Model:
C(x) = Cwume erf 4( l� erf (]]
Where: C(x) = Concentration at a downgradient point (mg/L)
Cw,,m = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
oy, = Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = ac 13
a= = Vertical dispersivity (ft) = ac /20
S, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Potable well at Martin Marietta facility
C.,,. Chloride =
980
mg/L
Cwume Iron =
20
mg/L
Cseume TDS =
3,300
mg/L
x =
3,500
ft
ace =
350.00
ft
ay =
116.67
ft
az = 17.50 ft
SW = 2,600 ft
Sd = 40 ft
(Well CPW-5S)
(Well CPW-5S)
(Well CPW-5S)
(Measured from well CPW-58)
Concentration at Potential Receptor
Groundwater Standard
C Chloride = 38 m /L
250 m /L
C Iron = 0.77 m /L
10.5 m /L
C TDS = 128 m /L
500 m /L
6448
CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-513 TO MARTIN MARIETTA POTABLE WELL
40' SOURCE THICKNESS (LOWER AQUIFER)
Domenico Model:
C(x) = C.. ert 4( ert 4( '
Where: C(x) = Concentration at a downgradient point (mg/L)
Cw,,= = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
m, = Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = a /3
a, = Vertical dispersivity (ft) = a120
S,,, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Potable well at Martin Marietta facility
C.,,. Chloride =
2,100
mg/L
Cwu= Iron =
0.82
mg/L
Cs ... TDS =
5,200
mg/L
x =
3,500
It
% =
350.00
It
ay =
116.67
ft
az =
17.50
It
Sw =
2,600
It
Sd =
40
ft
(Well CPW-5D)
(Well CPW-5D)
(Well CPW-5D)
(Measured from well CPW-5D)
Concentration at Potential Receptor
Groundwater Standard
C Chloride = 81 m /L
250 m /L
C Iron = 0.032 m /L
3.3 m /L
C TDS = 201 m /L
500 m /L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-12S TO MARTIN MARIETTA POTABLE WELL
40' SOURCE THICKNESS (UPPER AQUIFER)
Domenico Model:
C(x) = C� �e[erf 4( � erf 4(r�
Where: C(x) = Concentration at a downgradient point (mg/L)
Csoume = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
a, = Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = %J3
% = Vertical dispersivity (ft) = o420
S,,, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Potable well at Martin Marietta facility
C. 22
Cw,,,ze Chloride = mg/L
(Well CPW-12S)
Csou, Iron = 38 mg/L
(Well CPW-12S)
C,,,r TDS = 1,900 mg/L
(Well CPW-12S)
x = 1,300 ft
(Measured from well CPW-12S)
%= 130.00 It
ay = 43.33 It
az = 6.50 ft
SW = 2,600 ft
Sd = 40 ft
Concentration at Potential Receptor
GroundwaterHStanda]rdC
Chloride = 2.7 m /L
250 mC
Iron = 4.6 m /L
7.3 mC
TDS = 232 m /L
500 m
6448 CRA SERVICES

C_
DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-12D TO MARTIN MARIETTA POTABLE WELL
40' SOURCE THICKNESS (LOWER AQUIFER)
Domenico Model:
C(A = C.... erf 4(�rr erf 4(�l�
Where: C(x) = Concentration at a downgradient point (mg/L)
Cm„ m = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
%= Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = a /3
% = Vertical dispersivity (ft) = ac,r/20
S,,, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Potable well at Martin Marietta facility
C.. Chloride =
25
mg/L
(Well CPW-12D)
Cwurce Iron =
5.6
mg/L
(Well CPW-12D)
Cwurce TDS =
860
mg/L
(Well CPW-12D)
x =
1,300
ft
(Measured from well CPW-12D)
a.,, =
130.00
ft
ay =
43.33
ft
% =
6.50
It
Sw =
2,600
ft
Sd =
40
ft
Concentration at Potential Receptor
Groundwater Standard
C Chloride = 3.1 m /L
250 m /L
C Iron = 0.68 m /L
3.3 m /L
C TDS = 106 m /L
500 m /L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELLCPW-12S OXYCHEM POTABLE WELLS
40' SOURCE THICKNESS (UPPER AQUIFER)
Domenico Model:
C(x) = C.. [erf 4(� erf 4(
Where: C(x) = Concentration at a downgradient point (mg/L)
C� r = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
a, = Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = a,13
% = Vertical dispersivity (ft) = ay,/20
SM, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: OxyChem potable wells P-7, P-8, and P-9 (located south of Holly Shelter Road)
t' C.,. Chloride = 22 mg/L (Well CPW-12S)
C.u,. Iron = 38 mg/L (Well CPW-12S)
Cwurce TDS = 1,900 mg/L (Well CPW-12S)
x = 3,900 It (Measured from well CPW-12S)
% = 390.00 It
ay = 130.00 It
«z = 19.50 It
Sw = 2,600 ft
Sd = 40 It
Concentration at Potential Receptor
Groundwater Standard
C Chloride = 0.72 m /L
250 m /L
C Iron = 1.2 m /L
7.3 m /L
C TDS = 62 m /L
500 m /L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-12D TO OXYCHEM POTABLE WELLS
40' SOURCE THICKNESS (LOWER AQUIFER)
Domenico Model:
C(x) = C..erf 4(� erf 4(
Where: C(x) = Concentration at a downgradient point (mg/L)
C.u" = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
ocx = Longitudinal dispersivity (ft) = 0.10x
ocy = Transverse dispersivity (ft) = oyr/3
or, = Vertical dispersivity (ft) = u420
S,,, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: OxyChem potable wells P-7, P-8, and P-9 (located south of Holly Shelter Road)
�_. Cwu,ce Chloride = 25 mg/L (Well CPW-12D)
Cwum Iron = 5.6 mg/L (Well CPW-12D)
Cs rce TDS = 860 mg/L (Well CPW-12D)
x = 3,900 It (Measured from well CPW-12D)
% = 390.00 It
ocy = 130.00 ft
oc� = 19.60 ft
Sw = 2,600 It
Sd = 40 It
Concentration at Potential Receptor
Groundwater Standard
C Chloride = 0.82 m /L
250 m /L
C Iron = 0.18 m /L
3.3 m /L
C TDS = 28 m /L
500 m /L
6448 CRA SERVICES

APPENDIX J
GROUNDWATER FATE/TRANSPORT MODELING RESULTS
EXTENT OF COC EXCEEDANCE CONCENTRATIONS

MODELED LIMIT OF EXCEEDANCE
COC CONCENTRATIONS
Distance in Feet from Perimeter Compliance Wells
Toward Potential Receptor Well at which COC Concentration
Has Attenuated to Groundwater Standard or Background Level
From CPW Wells Toward Martin Marietta Well
CPW-5S
275
610
1050
1650
CPW-5D
<100
1350
1650
CPW-12S
830
<100
600
830
CPW-12D
240
<100
225
From CPW Wells Toward Nearest Well on Coon
Hunters Trail
CPW-13S
575
<100
131
575
CPW-13D
<100
<100
131
CPW-12S
850
<100
575
850
CPW-12D
230
<100
250
From CPW Wells Toward OxyChem Potable Wells
CPW-12S
850
<100
600
850
CPW-12D
225
<100
1 225

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-5S TO MARTIN MARIETTA POTABLE WELL
40' SOURCE THICKNESS (UPPER AQUIFER)
Domenico Model:
Sw Sa
C(x) = Cwume erf 4(ayx)lrz erf 4(azx)�rz
Where: C(x) = Concentration at a downgradient point (mg/L)
Cwu,m = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
%= Longitudinal dispersivity (ft) = 0.1Ox
ay = Transverse dispersivity (ft) = %/3
az = Vertical dispersivity (ft) = a420
S,,, = Source width parallel to groundwater flow direction (ft)
Sa = Source thickness (ft)
POTENTIAL RECEPTOR: Potable well at Martin Marietta facility
Cwu, , Chloride =
980
mg/L
C... Iron =
20
mg/L
Cwu, TDS =
3,300
mg/L
x =
275
It
ax =
27.50
It
ay =
9.17
ft
aZ =
1.38
It
Sw =
2,600
It
Sa =
40
ft
(Well CPW-5S)
(Well CPW-5S)
(Well CPW-5S)
(Measured from well CPW-5S)
Concentration at Potential Receptor Groundwater Standard
C Iron = 10.66 mg/L 1 10.5 mg/L
6448 CRA SERVICES

C
DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-5S TO MARTIN MARIETTA POTABLE WELL
40' SOURCE THICKNESS (UPPER AQUIFER)
Domenico Model:
C(x) = Csour [erf 4 r� erf 4(Sd
azx)
ay
Where: C(x) = Concentration at a downgradient point (mg/L)
Cw,,, = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
a = Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = ax/3
% = Vertical dispersivity (ft) = %/20
S,,, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Potable well at Martin Marietta facility
C.,. Chloride =
980
mg/L
Csouroe Iron =
20
mg/L
Cwurce TDS =
3,300
mg/L
x=
610
ft
%=
61.00
ft
ay =
20.33
ft
% =
3.05
It
SV, =
2,600
It
Sd =
40
ft
(Well CPW-5S)
(Well CPW-5S)
(Well CPW-5S)
(Measured from well CPW-5S)
Concentration at Potential Receptor Groundwater Standard
C Chloride = 262 mg/L 250 mg/L
6448
CRA SERVICES

Domenico Model:
C(x) = C.U.
DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-5S TO MARTIN MARIETTA POTABLE WELL
40' SOURCE THICKNESS (UPPER AQUIFER)
[erf 4(ayx)
Where: C(x) = Concentration at a downgradient point (mg/L)
Cw, ce = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
a%= Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = ax/3
% = Vertical dispersivity (ft) = a,,/20
Sw = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Potable well at Martin Marietta facility
C.,,,. Chloride = 980 mg/L (Well CPW-5S)
Cwefce Iron = 20 mg/L (Well CPW-5S)
C,,,,e TDS = 3,300 mg/L (Well CPW-5S)
x = 1,050 ft (Measured from well CPW-5S)
%= 105.00 ft
ay = 35.00 ft
a, = 5.25 ft
Sw = 2,600 ft
Sd = 40 ft
Concentration at Potential Receptor Groundwater Standard
C TDS = 499 m /L 500 m /L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-5D TO MARTIN MARIETTA POTABLE WELL
40' SOURCE THICKNESS (LOWER AQUIFER)
Domenico Model:
Sw Sd
C(x) = Cz.urce [erf ert
4(ayx)w 4(0t
x)W
Where: C(x) = Concentration at a downgradient point (mg/L)
C.u� = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
%= Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = a43
a, = Vertical dispersivity (ft) = aJ20
Sv, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Potable well at Martin Marietta facility
C�urm Chloride =
2,100
mg/L
C. Iron =
0.82
mg/L
Cw,r TDS =
5,200
mg/L
x =
150
ft
ar =
15.00
ft
ay =
5.00
ft
a, =
0.75
ft
Sw =
2,600
It
Sd =
40
It
(Well CPW-5D)
(Well CPW-5D)
(Well CPW-5D)
(Measured from well CPW-5D)
Concentration at Potential Receptor Groundwater Standard
C Iron = 0.67 m /L 3.3 m /L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
Domenico Model:
C(x) = C...
WELL CPW-5D TO MARTIN MARIETTA POTABLE WELL
40' SOURCE THICKNESS (LOWER AQUIFER)
Sa
erf 4(aZx) ]
Where: C(x) = Concentration at a downgradient point (mg/L)
Cwur = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
ax = Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = %13
az = Vertical dispersivity (ft) = ax/20
SW, = Source width parallel to groundwater flow direction (ft)
Sa = Source thickness (ft)
POTENTIAL RECEPTOR: Potable well at Martin Marietta facility
C.... Chloride = 2,100 mg/L (Well CPW-5D)
C. Iron = 0.82 mg/L (Well CPW-5D)
Cw,rr TDS = 5,200 mg/L (Well CPW-5D)
x = 1,350 ft (Measured from well CPW-5D)
%= 135.00 ft
ay = 45.00 ft
az = 6.75 ft
Sw = 2,600 ft
Sa = 40 it
Concentration at Potential Receptor Groundwater Standard
C Chloride = 247 m /L 250 m /L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
Domenico Model:
C(X) = Cwume
WELL CPW-51) TO MARTIN MARIETTA POTABLE WELL
40' SOURCE THICKNESS (LOWER AQUIFER)
SW Sd
erf 4(ayX) erf 4(aZx)
Where: C(x) = Concentration at a downgradient point (mg/L)
Cwume = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
ax = Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = %13
% = Vertical dispersivity (ft) = of J20
S,w = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Potable well at Martin Marietta facility
C.ufee Chloride =
2,100
mg/L
Cwu� Iron =
0.82
mg/L
C� u, TDS =
5,200
mg/L
x =
1,650
ft
a% =
165.00
ft
ay =
55.00
ft
aZ =
8.25
It
Sw =
2,600
It
Sd =
40
It
(Well CPW-5D)
(Well CPW-5D)
(Well CPW-5D)
(Measured from well CPW-5D)
Concentration at Potential Receptor Groundwater Standard
C TDS = 501 m /L 500 m /L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-12S TO MARTIN MARIETTA POTABLE WELL
40' SOURCE THICKNESS (UPPER AQUIFER)
Domenico Model:
Sw Sd
C(x) = Cwarce erf �4( )'a I erF 4( x)112
Where: C(x) = Concentration at a downgradient point (mg/L)
Cso,,,e = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
a = Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = axl3
%= Vertical dispersivity (ft) = %/20
S,,, = Source -width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Potable well at Martin Marietta facility
Cam,. Chloride =
22
mg/L
(Well CPW-12S)
C.,,. Iron =
38
mg/L
(Well CPW-12S)
Cwume TDS =
1,900
mg/L
(Well CPW-12S)
x =
830
ft
(Measured from well CPW-12S)
ax =
83.00
ft
ay =
27.67
It
aZ =
4.15
ft
Sw =
2,600
It
Sd =
40
It
Concentration at Potential Receptor Groundwater Standard
C Iron = 7.2 m /L 7.3 m /L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-12S TO MARTIN MARIETTA POTABLE WELL
40' SOURCE THICKNESS (UPPER AQUIFER)
Domenico Model:
Sd
C(x) = C... ert 4( ert 4(azx)
Where: C(x) = Concentration at a downgradient point (mg/L)
Cwu= = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
a%= Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = o(,13
&, = Vertical dispersivity (ft) = a /20
S,,, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Potable well at Martin Marietta facility
. C.,,. Chloride = 22 mg/L Well CPW-12S)
C.,,,. Iron = 38 mg/L Well CPW-12S)
Cwu, TDS = 1,900 mg/L Well CPW-12S)
x = 200 ft (Measured from well CPW-12S)
% = 20.00 ft
ay = 6.67 ft
az = 1.00 ft
Sw = 2,600 ft
Sd = 40 ft
Concentration at Potential Receptor Groundwater Standard
C Chloride = 16.0 mg/L 250 m /L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-12S TO MARTIN MARIETTA POTABLE WELL
40' SOURCE THICKNESS (UPPER AQUIFER)
Domenico Model:
Ild
C(x) = C.U. erf 4(S) 11 erf -;X) 1
�J J
Where: C(x) = Concentration at a downgradient point (mg/L)
Cw,,= = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
a, = Longitudinal dispersivity (ft) = 0.1 Ox
ocy = Transverse dispersivity (ft) = oy,13
% = Vertical dispersivity (ft) = oy,/20
Sw = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
/ POTENTIAL RECEPTOR: Potable well at Martin Marietta facility
C.Chloride = 22 mglL (Well CPW-128)
C..,, Iron = 38 mg/L (Well CPW-12S)
C.. TDS = 1,900 mg/L (Well CPW-12S)
x = 600 ft (Measured from well CPW-128)
% = 60.00 ft
ay = 20.00 ft
% = 3.00 ft
Sw = 2,600 ft
Sd = 40 ft
Concentration at Potential Receptor Groundwater Standard
C TDS = 496 mg/L 500 mg/L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-12D TO MARTIN MARIETTA POTABLE WELL
40' SOURCE THICKNESS (LOWER AQUIFER)
Domenico Model:
C(x) = C.U. [erf 4(rr erf 4(n—
Where: C(x) = Concentration at a downgradient point (mg/L)
Cwu,e = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
%= Longitudinal dispersivity (ft) = 0.1 Ox
ay = Transverse dispersivity (ft) = ax/3
% = Vertical dispersivity (ft) = m,120
S,,, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Potable well at Martin Marietta facility
C_ C.,1fC, Chloride = 25 mg/L (Well CPW-12D)
C. � Iron = 5.6 mg/L (Well CPW-12D)
C, � TDS = 860 mg/L (Well CPW-12D)
x = 240 ft (Measured from well CPW-12D)
%I = 24.00 ft
ay = 8.00 ft
% = 1.20 It
SS,, = 2,600 it
Sd = 40 It
Concentration at Potential Receptor Groundwater Standard
C Iron = 3.3 m /L 3.3 m /L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-12D TO MARTIN MARIETTA POTABLE WELL
40' SOURCE THICKNESS (LOWER AQUIFER)
Domenico Model:
S
C(x) = Csou ce[erf 4( erf 4(Z=
Where: C(x) = Concentration at a downgradient point (mg/L)
Cea rye = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
c�, = Longitudinal dispersivity (ft) = 0.10x
ocy = Transverse dispersivity (ft) = o43
a, = Vertical dispersivity (ft) = ax/20
S,,. = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Potable well at Martin Marietta facility
C.,,, Chloride =
25
mg/L
(Well CPW-12D)
Cswme Iron =
5.6
mg/L
(Well CPW-12D)
Ceo TDS =
860
mg/L
(Well CPW-12D)
x =
140
It
(Measured from well CPW-12D)
%=
14.00
it
ay =
4.67
It
a, =
0.70
ft
Sw =
2,600
ft
Sd =
40
ft
Concentration at Potential Receptor Groundwater Standard
C Chloride = 21.2 m /L 250 m /L
6448
CRA SERVICES

C_
DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-12D TO MARTIN MARIETTA POTABLE WELL
40' SOURCE THICKNESS (LOWER AQUIFER)
Domenico Model:
SW Sd
C(x) = C...ert ert]]
4(«yx)Vrz 4( x)Jn
Where: C(x) = Concentration at a downgradient point (mg/L)
C� = = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
ax = Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = a,,13
% = Vertical dispersivity (ft) = %J20
SW = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Potable well at Martin Marietta facility
C.,,,m Chloride =
25
mg/L
C.,,. Iron =
5.6
mg/L
Csou, TDS =
860
mg/L
x =
225
It
a =
22.50
It
ay =
7.50
It
a,=
1.13
It
SW =
2,600
It
Sd =
40
It
(Well CPW-12D)
(Well CPW-12D)
(Well CPW-12D)
(Measured from well CPW-12D)
Concentration at Potential Receptor Groundwater Standard
C TDS = 538 m /L 500 m /L
6448
CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-13S TO NEAREST POTABLE WELL ON COON HUNTER'S TRAIL
40' SOURCE THICKNESS (UPPER AQUIFER)
Domenico Model:
C(x) = Csou ce [erf
4(1 ert 4(�x) J
Where: C(x) = Concentration at a downgradient point (mg/L)
Cso, m = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
a, = Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = %)3
a, = Vertical dispersivity (ft) = cc /20
Sw = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Nearest potable well at residences on Coon Hunter's Trail
C.,,, Chloride = 17 mg/L
C.. Iron =
38
mg/L
C. � TDS =
550
mg/L
x =
575
It
aX =
57.50
ft
ay=
19.17
ft
az =
2.88
It
Sw =
2,600
ft
Sd =
40
It
(Well CPW-13S)
(Well CPW-13S)
(Well CPW-13S)
(Measured from well CPW-13S)
Concentration at Potential Receptor Groundwater Standard
C Iron = 10.4 m /L 10.5 m /I
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-13S TO NEAREST POTABLE WELL ON COON HUNTER'S TRAIL
40' SOURCE THICKNESS (UPPER AQUIFER)
Domenico Model:
SXd
C(x) = Csoume [erf 4( erf 4(l�—
Where: C(x) = Concentration at a downgradient point (mg/L)
Csource = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
a,r = Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = a,13
%= Vertical dispersivity (ft) = a./20
SM, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Nearest potable well at residences on Coon Hunter's Trail
C.,,. Chloride =
C+sourm Iron =
Cs urce TDS =
x=
aX =
ay
az =
Sw =
Sd =
17 mg/L
38 mg/L
550 mg/L
131 It
13.10 ft
4.37 It
0.66 ft
2,600 ft
40 ft
(Well CPW-13S)
(Well CPW-13S)
(Well CPW-13S)
(Measured from well CPW-13S)
Concentration at Potential Receptor Groundwater Standard
C Chloride = 14.8 m /L 250 m /L
CRA SERVICES

G
DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-13S TO NEAREST POTABLE WELL ON COON HUNTER'S TRAIL
40' SOURCE THICKNESS (UPPER AQUIFER)
Domenico Model:
SW $d
C(x) = C...erf[--�(ert
ayX)irz 4(X X)�rz
Where: C(x) = Concentration at a downgradient point (mg/L)
C, m = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
aX = Longitudinal dispersivity (ft) = 0.1Ox
ay = Transverse dispersivity (ft) = a J3
% = Vertical dispersivity (ft) = a�/20
Sw = Source width parallel to groundwater flow direction (ft)
Se = Source thickness (ft)
POTENTIAL RECEPTOR: Nearest potable well at residences on Coon Hunter's Trail
Cw,,,e Chloride =
17
mg/L
Cmu,ce Iron =
38
mg/L
C�u, TDS =
550
mg/L
x=
131
It
%=
13.10
ft
ay =
4.37
ft
a� =
0.66
ft
SW =
2,600
ft
Sd =
40
ft
(Well CPW-13S)
(Well CPW-13S)
(Well CPW-13S)
(Measured from well CPW-13S)
Concentration at Potential Receptor Groundwater Standard
C TDS = 480 m /L 500 m /L
6448
CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-13D TO NEAREST POTABLE WELL ON COON HUNTER'S TRAIL
40' SOURCE THICKNESS (LOWER AQUIFER)
Domenico Model:
Sw erf erf 4(Sdazx
C(x) = CwurR
)in
Where: C(x) = Concentration at a downgradient point (mg/L)
Cw « = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
a x = Longitudinal dispersivity (ft) = 0.10x
my = Transverse dispersivity (ft) = o 13
% = Vertical dispersivity (ft) = %J20
S„, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Nearest potable well at residences on Coon Hunter's Trail
C... Chloride =
37
mg/L
Cw rm Iron =
1.2
mg/L
C.. TDS =
500
mg/L
x =
200
ft
ace =
20.00
It
ocy =
6.67
it
% =
1.00
ft
Sw =
2,600
ft
Sd =
40
ft
(Well CPW-13D)
(Well CPW-13D)
(Well CPW-13D)
(Measured from well CPW-13D)
Concentration at Potential Receptor Groundwater Standard
C Iron = 0.82 m /L 3.3 m /L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-13D TO NEAREST POTABLE WELL ON COON HUNTER'S TRAIL
40' SOURCE THICKNESS (LOWER AQUIFER)
Domenico Model:
C(x) = C.U= erf 4( erf 4( )
Where: C(x) = Concentration at a downgradient point (mg/L)
C,a "= Concentration at source (mg/L)
x = Distance to downgradient receptor (fl)
oy, = Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = ay,/3
a, = Vertical dispersivity (ft) = ay,/20
S„, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Nearest potable well at residences on Coon Hunters Trail
C_. C.. Chloride = 37 mg/L (Well CPW-13D)
Cwu= Iron = 1.2 mg/L (Well CPW-13D)
C.,,. TDS = 500 mg/L (Well CPW-13D)
x = 200 ft (Measured from well CPW-13D)
% = 20.00 ft
ay = 6.67 ft
ace = 1.00 ft
Sw = 2,600 It
Sd = 40 ft
Concentration at Potential Receptor I Groundwater Standard
C Chloride = 25.3 m /L 250 m /L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-13D TO NEAREST POTABLE WELL ON COON HUNTER'S TRAIL
40' SOURCE THICKNESS (LOWER AQUIFER)
Domenico Model:
SXd
C(x) = Csour [erf 4( erf 4(
Where: C(x) = Concentration at a downgradient point (mg/L)
C,o, = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
ax = Longitudinal dispersivity (ft) = 0.1 Ox
ay = Transverse dispersivity (ft) = a,/3
oc, = Vertical dispersivity (ft) = o(,120
S,,, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Nearest potable well at residences on Coon Hunter's Trail
C.,,. Chloride =
37
mg/L
C.. Iron =
1.2
mg/L
Cyr TDS =
500
mg/L
x=
131
ft
%=
13.10
It
ay, =
4.37
ft
% =
0.66
It
Sw =
2,600
ft
Sd =
40
ft
(Well CPW-13D)
(Well CPW-13D)
(Well CPW-13D)
(Measured from well CPW-13D)
Concentration at Potential Receptor I Groundwater Sta
C TDS = 437 m /L 1 500 m /Lndard
6448 CRA SERVICES

GROUNDWATER TRANSPORT MODEL
WELL CPW-12S TO NEAREST POTABLE WELL ON COON HUNTER'S TRAIL
40' SOURCE THICKNESS (UPPER AQUIFER)
Domenico Model:
SW Sxd
C(x) = Cwerf erF
4(az)tn
Where: C(x) = Concentration at a downgradient point (mg/L)
C.,,, , = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
ay, = Longitudinal dispersivity (ft) = 0.10x
«y = Transverse dispersivity (ft) = 43
% = Vertical dispersivity (ft) = 420
SW = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Nearest potable well at residences on Coon Hunter's Trail
C.,,, , Chloride =
22
mg/L
(Well CPW-12S)
Cam,,,. Iron =
38
mg/L
(Well CPW-12S)
C� ,, TDS =
1,900
mg/L
(Well CPW-128)
x =
850
It
(Measured from well CPW-12S)
ay, =
85.00
It
acy =
28.33
It
% =
4.25
It
SW =
2,600
It
Sd =
40
It
Concentration at Potential Receptor Groundwater Standard
C Iron = 7.1 m /L 7.3 mcill
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELLCPW42S TO NEAREST POTABLE WELL ON COON HUNTER'S TRAIL
40' SOURCE THICKNESS (UPPER AQUIFER)
Domenico Model:
C(x) = Cwurce erf 4( erf 4(4
Where: C(x) = Concentration at a downgradient point (mg/L)
Cwu1Ce = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
oy, = Longitudinal dispersivity (ft) = 0.10x
any = Transverse dispersivity (ft) = a,/3
ace = Vertical dispersivity (ft) = oc /20
S,., = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Nearest potable well at residences on Coon Hunter's Trail
Csoume Chloride =
22
mg/L
(Well CPW-12S)
Cmume Iron =
38
mg/L
(Well CPW-128)
C. TDS =
1,900
mg/L
(Well CPW-12S)
x =
200
ft
(Measured from well CPW-12S)
ocx =
20.00
ft
my =
6.67
it
az=
1.00
It
Sw =
2,600
ft
Sd =
40
It
Concentration at Potential Receptor I Groundwater Standard
C Chloride = 15.0 m /L 1 250 m /L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-12S TO NEAREST POTABLE WELL ON COON HUNTER'S TRAIL
40' SOURCE THICKNESS (UPPER AQUIFER)
Domenico Model:
SXd
C(x) = C.U. [erf 4( erf 4(—
Where: C(x) = Concentration at a downgradient point (mg/L)
Cam„ r = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
ar = Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = acxJ3
% = Vertical dispersivity (ft) = a,/20
8, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Nearest potable well at residences on Coon Hunter's Trail
CC.,,. Chloride = 22 mg/L (Well CPW-12S)
C.. Iron = 38 mg/L (Well CPW-12S)
C,wrce TDS = 1,900 mg/L (Well CPW-12S)
x = 575 It (Measured from well CPW-128)
% = 57.50 It
ay= 19.17 It
cc, = 2.88 ft
Sw = 2,600 It
Sd = 40 ft
Concentration at Potential Receptor Groundwater Standard
C TDS = 517 m /L 500 m /L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-12D TO NEAREST POTABLE WELL ON COON HUNTER'S TRAIL
40' SOURCE THICKNESS (LOWER AQUIFER)
Domenico Model:
Sw Sa
C(x) = C.U. erf e
4(ayx)'� 4(ocZx)�rz
Where: C(x) = Concentration at a downgradient point (mg/L)
Cwu, = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
%= Longitudinal dispersivity (ft) = 0.1 Ox
ay = Transverse dispersivity (ft) = oy,13
% = Vertical dispersivity (ft) = a,/20
SV, = Source width parallel to groundwater flow direction (ft)
Sa = Source thickness (ft)
POTENTIAL RECEPTOR: Nearest potable well at residences on Coon Hunter's Trail
Csou,, Chloride =
25
mg/L
(Well CPW-12D)
CbOUfCe Iron =
5.6
mg/L
(Well CPW-12D)
Csouroe TDS =
860
mg/L
(Well CPW-12D)
x =
230
ft
(Measured from well CPW-12D)
ax =
23.00
ft
ay =
7.67
It
ate=
1.15
it
Sw =
2,600
ft
Sa =
40
ft
Concentration at Potential Receptor Groundwater Standard
C Iron = 3.4 m /L 3.3 m /L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-12D TO NEAREST POTABLE WELL ON COON HUNTER'S TRAIL
40' SOURCE THICKNESS (LOWER AQUIFER)
Domenico Model:
C(x) = C.Ur« erf 4( erf 4(�_
Where: C(x) = Concentration at a downgradient point (mg/L)
C� = = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
a x = Longitudinal dispersivity (ft) = 0.1 Ox
ay = Transverse dispersivity (ft) = ax/3
az = Vertical dispersivity (ft) = ak/20
S„, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Nearest potable well at residences on Coon Hunter's Trail
C.,,, Chloride =
25
mg/L
(Well CPW-12D)
CWU., Iron =
5.6
mg/L
(Well CPW-12D)
Cwu, TDS =
860
mg/L
(Well CPW-12D)
x =
1,200
It
(Measured from well CPW-12D)
ax =
120.00
ft
ay =
40.00
It
% =
6.00
ft
SV, =
2,600
ft
Sd =
40
ft
Concentration at Potential Receptor Groundwater Standard
C Chloride:! 3.3 m /L 250 m /L
6448
CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-12D TO NEAREST POTABLE WELL ON COON HUNTER'S TRAIL
40' SOURCE THICKNESS (LOWER AQUIFER)
Domenico Model:
C(x) = Csou ce[erf 4( ert 4(—
Where: C(x) = Concentration at a downgradient point (mg/L)
C., = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
ax = Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = ax/3
az = Vertical dispersivity (ft) = ax/20
SV, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: Nearest potable well at residences on Coon Hunter's Trail
C.,. Chloride =
25
mg/L
Cmume Iron =
5.6
mg/L
C.ur TDS =
860
mg/L
x =
250
ft
ax =
25.00
It
ay =
8.33
It
% =
1.25
ft
S„, =
2,600
It
SO =
40
ft
(Well CPW-12D)
(Well CPW-12D)
(Well CPW-12D)
(Measured from well CPWA21))
Concentration at Potential Receptor Groundwater Standard
C TDS = 496 m /L 500 m /L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELLCPW-12S OXYCHEM POTABLE WELLS
40' SOURCE THICKNESS (UPPER AQUIFER)
Domenico Model:
So
C(x) = Cm" [erf 4( erf 4(
Where: C(x) = Concentration at a downgradient point (mg/L)
Cwurm = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
a. = Longitudinal dispersivity (ft) = 0.10x
my = Transverse dispersivity (0) = a t3
% = Vertical dispersivity (ft) = %J20
8, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: OxyChem potable wells P-7, P-8, and P-9 (located south of Holly Shelter
Road)
C_-
C.,. Chloride = 22 mg/L (Well CPW-12S)
C.,. Iron = 38 mg/L (Well CPW-12S)
Csource TDS = 1,900 mg/L . (Well CPW-12S)
x = 850 ft (Measured from well CPW-12S)
a x = 85.00 ft
my = 28.33 ft
ac� = 4.25 ft
Sw = 2,600 It
Sd = 40 It
Concentration at Potential Receptor Groundwater Standard
C Iron = 7.1 m /L 7.3 m /L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELLCPW-12S OXYCHEM POTABLE WELLS
40' SOURCE THICKNESS (UPPER AQUIFER)
Domenico Model:
C(x) = C.UM erf4(�— erf 4( Pi —
Where: C(x) = Concentration at a downgradient point (mg/L)
C� = = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
cc, = Longitudinal dispersivity (11) = 0.1Ox
ay = Transverse dispersivity (ft) = a,13
% = Vertical dispersivity (ft) = oc420
S,,, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: OxyChem potable wells P-7, P-8, and P-9 (located south of Holly Shelter
Road)
C.U. Chloride =
22
mg/L
(Well CPW-12S)
Cwu, Iron =
38
mg/L
(Well CPW-12S)
Csa . TDS =
1,900
mg/L
(Well CPW-12S)
x =
200
it
(Measured from well CPW-128)
ace =
20.00
ft
ay =
6.67
ft
ace =
1.00
ft
S,., =
2,600
ft .
Sd =
40
It
Concentration at Potential Receptor Groundwater Standard
C Chloride = 15.0 m /L 250 m /L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELLCPW-12S OXYCHEM POTABLE WELLS
40' SOURCE THICKNESS (UPPER AQUIFER)
Domenico Model:
Sd
C(x) = Csour [erf 4( erf 4( �
Where: C(x) = Concentration at a downgradient point (mg/L)
CW,,= = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
ax = Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = ax/3
%= Vertical dispersivity (ft) = m)20
S,,, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: OxyChem potable wells P-7, P-8, and P-9 (located south of Holly Shelter Road)
C� rm Chloride = 22 mg/L (Well CPW-12S)
Cmume Iron =
38
mg/L (Well CPW-12S)
C� TDS =
1,900
mg/L (Well CPW-12S)
x =
600
It (Measured from well CPW-12S)
% =
60.00
ft
ay =
20.00
ft
u, =
3.00
ft
Sw =
2,600
ft
Sd =
40
ft
Concentration at Potential Receptor Groundwater Standard
C TDS = 496 m /L 500 m /L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-12D TO OXYCHEM POTABLE WELLS
40' SOURCE THICKNESS (LOWER AQUIFER)
Domenico Model:
SW Sa
C(x) = C�, ce erf erf
4(avx)'a 7x)In
Where: C(x) = Concentration at a downgradient point (mg/L)
Cw = = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
%= Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = a /3
% = Vertical dispersivity (ft) = a,120
S„, = Source width parallel to groundwater flow direction (ft)
Sa = Source thickness (ft)
POTENTIAL RECEPTOR: OxyChem potable wells P-7, P-8, and P-9 (located south of Holly Shelter Road)
6448
C.,,. Chloride =
25
mg/L
C.,,. Iron =
5.6
mg/L
Cwu, TDS =
860
mg/L
x =
225
ft
% =
22.50
ft
ay =
7.50
ft
az =
1.13
ft
Sw =
2,600
ft
Sa =
40
ft
(Well CPW-12D)
(Well CPW-12D)
(Well CPW-12D)
(Measured from well CPW-12D)
Concentration at Potential Receptor Groundwater Standard
C Iron = 3.5 mg/L 3.3 mg/L
CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
WELL CPW-12D TO OXYCHEM POTABLE WELLS
40' SOURCE THICKNESS (LOWER AQUIFER)
Domenico Model:
C(x) = Cwur erf 4( /2— erf 4(
Where: C(x) = Concentration at a downgradient point (mg/L)
Cw,, = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
%= Longitudinal dispersivity (ft) = 0.10x
ay = Transverse dispersivity (ft) = a l3
%= Vertical dispersivity (ft) = ax/20
S,,, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: OxyChem potable wells P-7, P-8, and P-9 (located south of Holly Shelter Road)
., C.. Chloride = 25 mg/L (Well CPW-12D)
Csoum Iron = 5.6 mg/L (Well CPW-12D)
C� TDS = 860 mg/L (Well CPW-12D)
x = 200 It (Measured from well CPW-12D)
aX = 20.00 ft
ay = 6.67 ft
% = 1.00 It
Sw = 2,600 ft
Sd = 40 ft
Concentration at Potential Receptor Groundwater Standard
C Chloride = 17.1 m /L 250 m /L
6448 CRA SERVICES

DOMENICO GROUNDWATER TRANSPORT MODEL
C
WELL CPW-12D TO OXYCHEM POTABLE WELLS
40' SOURCE THICKNESS (LOWER AQUIFER)
Domenico Model:
C(x) = C.e. [erf 4 erf 4(
Where: C(x) = Concentration at a downgradient point (mg/L)
Cw,= = Concentration at source (mg/L)
x = Distance to downgradient receptor (ft)
%= Longitudinal dispersivity (ft) = 0.1Ox
ay = Transverse dispersivity (ft) = a J3
az = Vertical dispersivity (ft) = aJ20
Sx, = Source width parallel to groundwater flow direction (ft)
Sd = Source thickness (ft)
POTENTIAL RECEPTOR: OxyChem potable wells P-7, P-8, and P-9 (located south of Holly Shelter Road)
�- C... . Chloride = 25 mg/L Well CPW-12D)
Cswme Iron = 5.6 mg/L (Well CPW-12D)
C.,,. TDS = 860 mg/L (Well CPW-12D)
x = 225 ft (Measured from well CPW-12D)
% = 22.50 ft
ay = 7.50 ft
a, = 1.13 ft
S„, = 2,600 ft
Sd = 40 ft
Concentration at Potential Receptor Groundwater Standard
C TDS = 538 m /L 500 m /L
6448 CRA SERVICES

APPENDIX K
NOTIFICATION OF PUBLIC OFFICIALS AND
DOCUMENTATION OF PERMISSION REQUESTS
TO AFFECTED LAND OWNERS
1. Notification to David E. Rice, Director, New Hanover County Health
Department
2. Notification to William A. Castor, Chairman, New Hanover County Board of
Commissioners
3. Notification and natural attenuation permission request to Lillian DePrimo,
Southdown, Inc. (formerly Dixie Cement Company, Inc.)
4. Notification and natural attenuation permission request to Horace Wilson,
Martin Marietta Corporation
5. Permission request to install and access groundwater monitoring wells to
Horace Wilson, Martin Marietta Corporation.

Rmon-lawcerse W
A Public Commitment Fr
CERTIFIED MAIL - RETURN RECEIPT REQUESTED
RETURN RECEIPT REQUESTED P 427 891 891
May 25, 1999
David E. Rice, Director
New Hanover County Health Department
2029 South 17th Street
Wilmington, NC 28401
RE: Notification of Request to the North Carolina Department of Environment and
Natural Resources for Groundwater Corrective Action by Natural Attenuation
Occidental Chemical Corporation
Castle Hayne, New Hanover County, North Carolina
Dear Mr. Rice:
In accordance with the provisions of Title 15A, North Carolina Administrative Code
(NCAC), Subchapter 2L, Section 0106(I) (15A NCAC 2L.0106(I)) and 15A NCAC
2L.0114(b), Occidental Chemical Corporation (OxyChem®) is providing you this
notification of OxyChem's request to the Wilmington Regional Office, Department of
Environment and Natural Resources (DENR) to pursue groundwater remediation by
natural attenuation in the vicinity of the closed former lagoon and Quarry 1, Sections 1
and 2 at the OxyChem plant near Castle Hayne, NC.
Due to historical operation of the former lagoon and Quarry 1, Section 1, the affected
groundwater exhibits concentrations of total dissolved solids (TDS), chlorides, and iron
and values of pH which exceed the State groundwater standards per 15A NCAC
2L.0202 or the established background standards. Based on very conservative
groundwater modeling, exceedance concentrations in groundwater are projected to
extend beyond the OxyChem property and to underlie portions of the adjacent Martin
Marietta Corporation aggregates plant and the railroad right-of-way owned by
Southdown, Inc. (formerly Dixie Cement Company). The projected limit of the
exceedance concentrations and the locations of potentially potable wells are shown on
the attached plan.
Based on our modeling, groundwater with exceedance values of TDS, chlorides, iron,
and pH do not currently and will not migrate to within a one-year travel -time distance of
the nearest potable wells. Furthermore, based on our studies of the river water quality,
migration of the affected groundwater has not currently and will not create a measurable
impact upon surrounding surface waters (i.e., the Northeast Cape Fear River) or result
in concentrations exceeding State surface water quality standards.
oOccidental Chemical Corporation Carolina Star Site
`/ 5408 Holly Shelter Road. P.O. Box 168. Castle Hayne. North Carolina 28429
910i675-7200 FAX: 9101'675-7201

W Da id E lifts
May5, 1999
Page 2 of 2
As part of the requested Corrective Action Plan (CAP), OxyChem has instituted
changes in the wastewater treatment process that will control the source of TDS,
chlorides, iron, and pH such that predicted groundwater exceedance concentrations will
not migrate beyond the Compliance Boundary. With the historical source controlled, the
current exceedance concentrations at and beyond the Compliance Boundary will
naturally attenuate by advection and dispersion, achieving groundwater standards or
established background concentrations within an estimated eight to ten years.
The DENR will postpone the final decision on OxyChem's requested CAP for a period of
30 days to consider comments by interested parties. Should you have any comments,
please direct them to:
Charles F. Stehman, PhD, PG
Groundwater Supervisor, Wilmington Regional Office
North Carolina Department of Environment and Natural Resources
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Phone: [phone]
Should you desire additional information on the requested CAP, please contact:
C
John V. O'Janpa
Senior Environmental Engineer
Occidental Chemical Corporation
5408 Holly Shelter Road
Castle Hayne, NC 28429
Phone: [phone]
Sincerely,
ene F. Ren4alri
Plant Manager
Attachment: Figure 6.1 of CAP

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extra fee):
card to you.
sperm this is form to the froof the mallpiece, a IF the bscir space does not
1. ❑ Addressee's Address
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sWrile'Rehum Receipt Requested'on the nuilpiece below the article number.
2. ❑ Restricted Delivery
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-The Return Receipt will show to whom the article was delivered and the date
delivered_
Consult postmaster for fee.
S
David E. Rice, Director
New Hanover County Health
Department
2029 S. 17th Street
Wilmington, NC 28401
6.
PS Form 3011. December1994
4a. Article Number
o
P 427 891 891
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41p. Service Type
❑ Registered [3 Certified
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7. Date of Delivery
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8. Addressee's Address (Only if requested
and fee is paid)
_
I—
R. W. HOLLINGER
P 427 891 891
US Postal Service
Receipt for Certified Mail
No Insurance Coverage Provided.
uo not use Tor international Mail See reverse
Sent to
David E. Rice
M9ber
. 17th Street
Post office, state,& ZIPCaIe 28401
Wilmington, 1LVV [[
Postage
Certified Fee
lJ
Special Delivery Fee
Restricted Delivery Fee
Return Receipt Showing to
Wham & Dale Delivered
Rosso Beespt
.
Dale,& S
7TA Fees
O
Po IfIrr oroate

R.wen.ible Carr/
m A Public Comkment
{•. CERTIFIED MAIL -RETURN RECEIPT REQUESTED
RETURN RECEIPT REQUESTED P 427 891 892
May 25, 1999
William A. Castor, Chairman
New Hanover County Board of Commissioners
320 Chestnut Street, Room 305
Wilmington, NC 28401-4093
RE: Notification of Request to the North Carolina Department of Environment and
Natural Resources for Groundwater Corrective Action by Natural Attenuation
Occidental Chemical Corporation
Castle Hayne, New Hanover County, North Carolina
Dear Mr. Castor:
In accordance with the provisions of Title 15A, North Carolina Administrative Code
(NCAC), Subchapter 2L, Section 0106(I) {15A NCAC 2L.0106(1)1 and 15A NCAC
2L.0114(b), Occidental Chemical Corporation (OxyChem®) is providing you this
notification of OxyChem's request to the Wilmington Regional Office, Department of
Environment and Natural Resources (DENR) to pursue groundwater remediation by
natural attenuation in the vicinity of the closed former lagoon and Quarry 1; Sections
and 2 at the OxyChem plant near Castle Hayne, NC.
Due to historical operation of the former lagoon and Quarry 1, Section 1, the affected
groundwater exhibits concentrations of total dissolved solids (TDS), chlorides, and iron
and values of pH which exceed the State groundwater standards per 15A NCAC
2L.0202 or the established background standards. Based on very conservative
groundwater modeling, exceedance concentrations in groundwater are projected to
extend beyond the OxyChem property and to underlie portions of the adjacent Martin
Marietta Corporation aggregates plant and the railroad right-of-way owned by
Southdown, Inc. (formerly Dixie Cement Company). The projected limit of the
exceedance concentrations and the locations of potentially potable wells are shown on
the attached plan.
Based on our modeling, groundwater with exceedance values of TDS, chlorides, iron,
and pH do not currently and will not migrate to within a one-year travel -time distance of
the nearest potable wells. Furthermore, based on our studies of the river water quality,
migration of the affected groundwater has not currently and will not create a measurable
impact upon surrounding surface waters (i.e., the Northeast Cape Fear River) or result
in concentrations exceeding State surface water quality standards.
o^ Occidental Chemical Corporation Carolina Star Site
5408 Holly Shelter Road. P.O. Box 368. Castle Hayne. North Carolina 28429If
9101675-7200 FAKGM675-7201

- :"
May 5, 1999
Page 2 of 2
As part of the requested Corrective Action Plan (CAP), OxyChem has instituted
changes in the wastewater treatment process that will control the source of TDS,
chlorides, iron, and pH such that predicted groundwater exceedance concentrations will
not migrate beyond the Compliance Boundary. With the historical source controlled, the
current exceedance concentrations at and beyond the Compliance Boundary will
naturally attenuate by advection and dispersion, achieving groundwater standards or
established background concentrations within an estimated eight to ten years.
The DENR will postpone the final decision on OxyChem's requested CAP for a period of
30 days to consider comments by interested parties. Should you have any comments,
please direct them to:
Charles F. Stehman, PhD, PG
Groundwater Supervisor, Wilmington Regional Office
North Carolina Department of Environment and Natural Resources
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Phone: [phone]
r Should you desire additional information on the requested CAP, please contact:
John V. O'Janpa
Senior Environmental Engineer
Occidental Chemical Corporation
5408 Holly Shelter Road
Castle Hayne, NC 28429
Phone: [phone]
Sincerely,
Aene. Renzaglia
Plant Manager
Attachment: Figure 6.1 of CAP

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a Print your name and address on the revere of this form so eft we ran return this
could to you.
SlAttach #" forth to the front of the mailpiece, or on the back if apam does not
permit.
e Write'Retum Receipt Requested' on the mailpiem below the adids number.
•The Return Receipt will show to whom the wide was delivered and the date
delivered.
William A. Castor, Chairman
N. H. Co. Board of Commissioners
320 Chestnut Street, Room 305
Wilmington, NC 28401-4093
X �I
Ps Form 3811, December1994
I also wish to receive the
following services (for an
extra tee):
1. ❑ Addressee's Address
Z
2. ❑ Restricted Delivery
H
Consult postmaster for fee.
is
O
P 427 891 892
❑ Registered
❑ Express Mail
Qt Return Receipt for
and fee is paid)
R. W. Hollinger
P 427 891 892
US Postal service
Receipt for Certified Mail
No Insurance Coverage Provided.
Do not use for International Mail See reverse
Sent to
William A. Castor
Stmet & Number
320 Chestnut St.
Room 305
Post Office, State, & ZIP Code
Wilmington, NC
28401-4093
Postage
$
Certified Fee
(F�
Special Delivery Fee
Restricted Delivery Fee
Rehm Receipt Shgoong.lp
5
Whom &Dalai)a n
Dale, & Addess
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TOTAL Postage & Fees
$
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A Pubrc Caeeniaewa
CERTIFIED MAIL - RETURN RECEIPT REQUESTED
RETURN RECEIPT REQUESTED P 427 891 894
May 25, 1999
Lillian DePrimo
Southdown, Inc. (formerly Dixie Cement Company, Inc.)
6212 Cement Plant Road
Knoxville, TN 37924
RE: Notification of Request to the North Carolina Department of Environment and
Natural Resources for Groundwater Corrective Action by Natural Attenuation
Occidental Chemical Corporation
Castle Hayne, New Hanover County, North Carolina
Dear Ms. DePrimo:
In accordance with the provisions of Title 15A, North Carolina Administrative Code
(NCAC), Subchapter 2L, Section 0106(I) (15A NCAC 2L.0106(I)) and 15A NCAC
2L.0114(b), Occidental Chemical Corporation (OxyCheme) is providing you this
notification of OxyChem's request to the Wilmington Regional Office, Department of
Environment and Natural Resources (DENR) to pursue groundwater remediation by
natural attenuation in the vicinity of the closed former lagoon and Quarry 1, Sections
and 2 at the OxyChem plant near Castle Hayne, NC.
Due to historical operation of the former lagoon and Quarry 1, Section 1, the affected
groundwater exhibits concentrations of total dissolved solids (TDS), chlorides, and iron
and values of pH which exceed the State groundwater standards per 15A NCAC
2L.0202 or the established background standards. Based on very conservative
groundwater modeling, exceedance concentrations in groundwater are projected to
extend beyond the OxyChem property and to underlie portions of the adjacent Martin
Marietta Corporation aggregates plant and the railroad right-of-way owned by
Southdown, Inc. (formerly Dixie Cement Company). The projected limit of the
exceedance concentrations and the locations of potentially potable wells are shown on
the attached plan.
Based on our modeling, groundwater with exceedance values of TDS, chlorides, iron,
and pH do not currently and will not migrate to within a one-year travel -time distance of
the nearest potable wells. Furthermore, based on our studies of the river water quality,
migration of the affected groundwater has not currently and will not create a measurable
impact upon surrounding surface waters (i.e., the Northeast Cape Fear River) or result
in concentrations exceeding State surface water quality standards.
nOccidental Chemical Corporation Carolina star Site
CA08 Hollv Shelter array F.C. Box 068. Castle Havne. North Carolina 28429
910,675-7200=A.X.'ir,675-7201

—t,
Southdowrr. Ire (formerly 0bdeCementCompany, Inc.)
May 5, 1999
Page 2 of 3
As part of the requested Corrective Action Plan (CAP), OxyChem has instituted
changes in the wastewater treatment process that will control the source of TDS,
chlorides, iron, and pH such that predicted groundwater exceedance concentrations will
not migrate beyond the Compliance Boundary. With the historical source controlled, the
current exceedance concentrations at and beyond the Compliance Boundary will
naturally attenuate by advection and dispersion, achieving groundwater standards or
established background concentrations within an estimated eight to ten years.
The DENR will postpone the final decision on OxyChem's requested CAP for a period of
30 days to consider comments by interested parties. Should you have any comments,
please direct them to:
Charles F. Stehman, PhD, PG
Groundwater Supervisor, Wilmington Regional Office
North Carolina Department of Environment and Natural Resources
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Phone: [phone]
Should you desire additional information on the requested CAP, please contact:
John V. O'Janpa
Senior Environmental Engineer
Occidental Chemical Corporation
5408 Holly Shelter Road
Castle Hayne, NC 28429
Phone: [phone]
As an owner of adjacent land under whose property groundwater exceedance values of
TDS, chlorides, iron, and/or pH are projected to exist as the result of historical operation
of the former lagoon and/or Quarry 1, Section 1, OxyChem solicits concurrence from
Southdown, Inc. to allow these exceedance values to naturally attenuate to groundwater
standards or established background concentrations under the provisions of 15A NCAC
2L.0106(I). The CAP includes provisions of periodic monitoring of the groundwater
quality so that DENR can be assured that the natural attenuation process is proceeding
as anticipated.
OxyChem will greatly appreciate concurrence from Southdown, Inc. to this groundwater
remediation approach by countersignature of this letter.
Sincerely,
Aene. Zrizagli
Plant Manager

M16 Llffmutillf
Sotdtxbwn, Inn (lbrmery Diode Cement ConVwW, Inc.)
May 5, 1999
Page 3 of 3
Attachment: Figure 6.1 of CAP
We concur with the corrective action request to allow groundwater exceedance values
of TDS, chlorides, iron, and/or pH which may exist under portions of our property as a
result of OxyChem's historical operation of the former lagoon and Quarry 1, Section 1,
to naturally attenuate to groundwater standards or accepted background
concentrations.
(Company)
(Title)
(Signature) (Date)

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s
o Complete hams 1 andror 2 for additional services.
ing services (for an extra fee):
mw
Complete items 3, 4a, and 41b.
o Print your name and address on the reverse of this fomt 6o
that we can return this
card to you.
1- 0 Addressee's Address
D Attach 9es forth to the from of the maitplece, or on the back
permit.
N space does not
Z- ❑ Restricted Delivery
m
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article number.
0 The Return Receipt will show to whom the article was delivered and the date
1 p
delivered.
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3. Article Addressed to:
4a. Article Number
d
Lillian DePrimo
P 427 891 894
Southdown, Inc. (formerly Y
4b. Service Type
uo
Dixie Cement Co., Inc.)
❑Registered $)Certified
212 Cement Plant Road
_
❑ Express Mail `0. f H]lpsured
noxville, TN 37924
Return Receipt for,. ndise
15.
7. Date of Delivery,r
za
Received By: (Print Name)
8. Addressee's Address ( d�eq and
fee is paid) K e-Z - e Y
December 1994
102595-99-B-0223
R. W. Rol finger
P 427 891 894
US Postal Service
Receipt for Certified Mail
No Insurance Coverage Provided.
Do not use for IntemaGonal Mail See reverse
Sent to an ePrimo
Southdown, Inc.
Street a Number
6212 Cement Plant Road
Post Office, State, 8 ZIP Code
Knoxville, TN 37924
Postage
$ tl,t
Certified Fee
Special Delivery Fee
Restricted Delivery Fee
m
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Responsible Care- ���.
A PubhC C=MMWl
CERTIFIED MAIL - RETURN RECEIPT REQUESTED
RETURN RECEIPT REQUESTED P 427 891 893
May 25, 1999
Horace Wilson
Martin Marietta Corporation
2710 Wycliff
Raleigh, NC 27607
RE: Notification of Request to the North Carolina Department of Environment and
Natural Resources for Groundwater Corrective Action by Natural Attenuation
Occidental Chemical Corporation
Castle Hayne, New Hanover County, North Carolina
Dear Mr. Wilson:
In accordance with the provisions of Title 15A, North Carolina Administrative Code
(NCAC), Subchapter 2L, Section 0106(I) {15A NCAC 2L.0106(I)) and 15A NCAC
2L.0114(b), Occidental Chemical Corporation (OxyChem®) is providing you this
notification of OxyChem's request to the Wilmington Regional Office, Department of
Environment and Natural Resources (DENR) to pursue groundwater remediation by
natural attenuation in the vicinity of the closed former lagoon and Quarry 1, Sections 1
and 2 at the OxyChem plant near Castle Hayne, NC.
Due to historical operation of the former lagoon and Quarry 1, Section 1, the affected
groundwater exhibits concentrations of total dissolved solids (TDS), chlorides, and iron
and values of pH which exceed the State groundwater standards per 15A NCAC
2L.0202 or the established background standards. Based on very conservative
groundwater modeling, exceedance concentrations in groundwater are projected to
extend beyond the OxyChem property and to underlie portions of the adjacent Martin
Marietta Corporation aggregates plant and the railroad right-of-way owned by
Southdown, Inc. (formerly Dixie Cement Company). The projected limit of the
exceedance concentrations and the locations of potentially potable wells are shown on
the attached plan.
Based on our modeling, groundwater with exceedance values of TDS, chlorides, iron,
and pH do not currently and will not migrate to within a one-year travel -time distance of
the nearest potable wells. Furthermore, based on our studies of the river water quality,
migration of the affected groundwater has not currently and will not create a measurable
impact upon surrounding surface waters (i.e., the Northeast Cape Fear River) or result
in concentrations exceeding State surface water quality standards.
oOccidental Chemical Corporation Carolina Star Site
`� 5408 Holly Shelter Road. P.O. Box 368. Castle Hayne. North Carolina 28429
9101675-1200 FAX 910l675-7201 1

Mr. Florioa:UlAtsorr
Martin Marietta Corporation
May 5, 1999
Page 2 of 3
As part of the requested Corrective Action Plan (CAP), OxyChem has instituted
changes in the wastewater treatment process that will control the source of TDS,
chlorides, iron, and pH such that predicted groundwater exceedance concentrations will
not migrate beyond the Compliance Boundary. Wdh the historical source controlled, the
current exceedance concentrations at and beyond the Compliance Boundary will
naturally attenuate by advection and dispersion, achieving groundwater standards or
established background concentrations within an estimated eight to ten years.
The DENR will postpone the final decision on OxyChem's requested CAP for a period of
30 days to consider comments by interested parties. Should you have any comments,
please direct them to:
Charles F. Stehman, PhD, PG
Groundwater Supervisor, Wilmington Regional Office
North Carolina Department of Environment and Natural Resources
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Phone: [phone]
Should you desire additional information on the requested CAP, please contact:
John V. O'Janpa
Senior Environmental Engineer
Occidental Chemical Corporation
5408 Holly Shelter Road
Castle Hayne, NC 28429
Phone: [phone]
As an owner of adjacent land under whose property groundwater exceedance values of
TDS, chlorides, iron, and/or pH are projected to exist as the result of historical operation
of the former lagoon and/or Quarry 1, Section 1, OxyChem solicits concurrence from
Martin Marietta to allow these exceedance values to naturally attenuate to groundwater
standards or established background concentrations under the provisions of 15A NCAC
2L.0106(I). The CAP includes provisions of periodic monitoring of the groundwater
quality so that DENR can be assured that the natural attenuation process is proceeding
as anticipated.
OxyChem will greatly appreciate concurrence from Martin Marietta Corporation to this
groundwater remediation approach by countersignature of this letter.
Sincer ly,
ene F. Renzaglia
Plant Manager

W. HoraotYAhm
Martin Marietta Corporation
May 5, 1999
Page 3 of 3
Attachment: Figure 6.1 of CAP
We concur with the corrective action request to allow groundwater exceedance values
of TDS, chlorides, iron, and/or pH which may exist under portions of our property as a
result of OxyChem's historical operation of the former lagoon and Quarry 1, Section 1,
to naturally attenuate to groundwater standards or accepted background
concentrations.
(Company)
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card to you.
❑ Attach this form to the front of the mailpiece, or on the back if space does not
permit.
❑ Write 'RefUM Receipt Raquested'on the mailpiece below the article number.
❑ The Return Receipt will show to whom the article was delivered and the date
Horace Wilson
Martin -Marietta Corporation
2710 Wycliff
Raleigh, NC 27607
I also wish to receive the follow-
ing services (for an extra fee):
1. 0 Addressee's Address
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RETURN RECEIPT REQUESTED P 427 891 895
May 25, 1999
Horace Wilson
Martin Marietta Corporation
2710 Wycliff
Raleigh, NC 27607
RE: Permission to Install and Access Groundwater Monitoring Wells
on Martin Marietta Corporation's Castle Hayne Aggregate Plant Property
Occidental Chemical Corporation
Castle Hayne, New Hanover County, North Carolina
Dear Mr. Wilson:
In accordance with the provisions of Title 15A, North Carolina Administrative Code
(NCAC), Subchapter 2L, Section 0106(I) (15A NCAC 2L.0106(I)), Occidental Chemical
Corporation (OxyChem®) is requesting the Wilmington Regional Office, Department of
Environment and Natural Resources' (DENR) approval of a Corrective Action Plan
(CAP) to pursue groundwater remediation by natural attenuation in the vicinity of the
closed former lagoon and Quarry 1, Sections 1 and 2 at the OxyChem plant near Castle
Hayne, NC.
As part of the CAP requirements, groundwater levels and the progress of the natural
attenuation process must be monitored at various distances from the source. To satisfy
these requirements, OxyChem proposes the installation of a groundwater monitor well
cluster in one location; the cluster will consist of one well in the shallow Upper Aquifer
(LCW-1 S) and one well (LCW-1 D) in the deeper Lower Aquifer. The proposed location
falls within the Martin Marietta Corporation property as shown on the attached plan.
OxyChem solicits permission from Martin Marietta Corporation to install the two -well
cluster at the approximate location shown on the plan and to access the well locations
periodically over the next eight to ten years to collect groundwater elevation data and to
perform maintenance on the wells as required. Upon completion of the groundwater
remediation and with the approval of DENR, OxyChem will abandon the wells in
accordance with State -approved well abandonment procedures.
Should you desire additional information regarding the well construction or access
requirements, please contact:
nOccidental Chemical Corporation Carolina Star Site
`/ 5408 Holly Shelter Poad. P.O. Box 368. Castle Hayne. North Carolina 28429
910/675-7200 =AXE 910,675-7201

MIK Y#samrron
Martin Marisftcorl ation
May 5, 1999
Page 2 of 2
John V. O'Janpa
Senior Environmental Engineer
Occidental Chemical Corporation
5408 Holly Shelter Road
Castle Hayne, NC 28429
Phone: [phone]
Your cooperation is greatly appreciated.
Sincerely,
ene F. Renzagli
Plant Manager
Attachment: Figure 6.1 of CAP
Martin Marietta Corporation hereby grants OxyChem permission to install a cluster of
two groundwater monitor wells (LCW-1 S and LCW-1 D) each at the approximate
location shown on the attached map, and to periodically access those wells for up to 10
years for the purposes of groundwater sample/data collection and well maintenance.
Upon completion of the groundwater remediation to DENR's approval, OxyChem will
abandon the wells in accordance with State -accepted well abandonment procedures.
For Martin Marietta Corporation
(Title)
(Signature) (Date)

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d 3. Article Addressed to:
4a. Article Number
a Horace Wilson P 427 891 895
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