8806_ROSCANS_1996

i
1
F ,
aUPONT 1
1
DuPont Environmental Remediation Services
June 28, 1996
Mr. James E. Patterson
Waste Management Specialist
North Carolina DEHNR
Solid Waste Section
59 Woodfin Place
Asheville, NC 28801
EAST LANDFILL CLOSURE PLAN
Sterling Brevard Plant
Brevard, North Carolina
Dear Mr. Patterson:
DuPont Environmental Remediation Services
140 Cypress Station Drive, Suite 140
Houston, TX 77090
Tel. [phone]
Fax [phone]
On behalf of Dr. John Chidley, I am submitting -to you the closure plan for the East Landfill at
the Sterling (formerly DuPont) Brevard Plant. As you are aware, DuPont is currently closing this
landfill in accordance with the enclosed plan. The scope of the closure was discussed with you
in our meeting at the site on June 12, 1996.
If you have any questions, please feel free to contact. me at.. [phone].
Sincerely,
41ftl
Christopher J. Woodrow
Project Manager
0W:ltp
Enclomires
cc: brevard\403521\02462LTR.DOC;
E. I. du Pont de Nemours and Company ® Printed ou Recycled Paper
CH-7801

State of North Carolina
Department of Environment,LTIKMAI
Health and Natural Resources •
Division of Solid Waste Management ,Sr
James B. Hunt, Jr., Governor p E H N �i
Jonathan B. Howes, Secretary
William L. Meyer, Director
January 18, 1996
R
Mr. Ed Hallowell
Dupont
P. O. Box 267
Brevard, NC 28712w�WSRO
RE: Status of Dupont Industrial Landfill, Permit Number 88-06, Transylvania County
Dear Mr. Hallowell:
The purpose of this letter is to inform the owner/operator of the referenced facility of their
responsibilities under the recently adopted industrial waste rules.
Rule .0503(d)(iii) of the solid waste management rules codified at 15A NCAC 13B requires that
operators of new industrial waste landfills (ILFs), lateral expansions of existing ILFs, and ILFs
operating on or after January 1,1998, shall submit to the Division a design that satisfies one of
the following criteria:
(A) a design that will ensure that the ground water standards established under 15A
NCAC 2L will not be exceeded in the uppermost aquifer at the compliance boundary
established by the Division in accordance with 15A NCAC 2L. The design shall be
based upon modelling methods acceptable to the Division, which shall include at a
minimum the following factors:
(1) the hydrogeologic characteristics of the facility and surrounding lands;
(II) the climatic factors of the area; and
(III) the volume and physical and chemical characteristics of the leachate, or
(B) a design with a leachate collection system, a closure cap system, and a composite
liner system consisting of two components: the upper component shall consist of a
minimum 30-mil flexible membrane (FML), and the lower components shall consist of at
least a two -foot layer of compacted soil with a hydraulic conductivity of no more than
1x10-' cm/sec. FML, components consisting of high density polyethylene (HDPE) shall
be at least 60-mil thick.
An existing landfill is defined as a landfill that is receiving waste on October 1, 1995, the
effective date of this rule and is not a new landfill. A lateral expansion of an existing landfill is
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

Mr. Hallowell
January 18, 1996
Page 2
defined as the placement of waste outside the actual waste "footprint" established prior to
January 1, 1998. A new landfill is defined as a landfill that has not received waste prior to
October 1, 1995, the effective date of the rules.
Under this rule, an existing landfill may continue to operate until January 1, 1998. However; if
the existing landfill proposes to operate on or after that date, it must demonstrate that its current
design or a proposed design change to the existing landfill will ensure compliance with the
ground water standards as required in criteria (A) of Rule .0503(d)(iii). If a lateral expansion of
the existing landfill or a new landfill is proposed, a permit application that meets all the
requirements of Rules .0503, .0504, and .0505 must be submitted for review and approval.
If the owner/operator of the referenced landfill proposes to operate on or after January 1, 1998,
the Division requires the submittal of the following information to assist in the preliminary
evaluation of the existing landfill:
(1) A waste stream characterization including all waste types received over the life of the
landfill. Waste determination forms and additional chemical analyses may be required
for certain wastes.
(2) A site characterization including a plat indicating the following relationships: current
waste "footprint", projected waste boundary as of January 1, 1998, permitted waste
boundaries, permitted facility boundaries, property boundaries (if different from the
permitted boundaries) and existing ground water monitoring wells. The ground water
monitoring wells must be located on the plat in such a manner that accurate distances
from the wells and the pertinent boundaries may be determined. Well construction
records should be provided for each monitoring well.
(3) An analysis and explanation of ground water monitoring results relative to the ground
water standards.
(4) A proposed plan to demonstrate that the design of the existing landfill or a design
change to the existing landfill will ensure compliance with the ground water standards at
the'existing landfill, including proposed design changes and modelling methods to
demonstrate compliance.
The Division will use this information to make a preliminary evaluation for the existing landfill
in accordance with criteria (A). Additional information may be required for the preliminary
determination.
The Division may require more specific information to make the final determination, including
modelling methods acceptable to the Division which include, at a minimum, the factors (I), (II),
and (III) above. Additional hydrogeologic, climatic, and leachate characterization may be
required to develop an acceptable model. If a design change is approved as part of the final
determination, a permit application may be required. This additional information will be
specified by the Division when the preliminary determination is made.

Mr. Hallowell
January 18, 1996
Page 3
As stated previously, if a lateral expansion of the existing landfill or a new landfill is proposed,
the submittal of a complete permit application will be required.
This letter serves as notification to the owner/operator that the information previously
described as necessary to begin a preliminary evaluation of the referenced facility should
be submitted to the Division by July 1, 1996.
If there are any questions regarding this letter, please call Susan Wright at [phone]
extension 262.
Sincerely,
kermitting
ZYW4(LL
�
C. Coffey, Su sor
Branch
Solid Waste Section
cc: Dexter Matthews
Susan Wright
'Julian Foscue
Jim Patterson
C:\WRIGHnPROJECTS\INDUSTRL\DUPNT-88\fNDUSTLF.GEN

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Waste Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
William L. Meyer, Director
August 22, 1996
Mr. Ed Hallowell
Dupont
P. O. Box 267
Brevard, NC 28712
e��
1DEHNR
RE: Dupont Industrial Landfill, Permit Number 88-06, Transylvania County
Dear Mr. Hallowell:
AUG 1996
RECEIVED
SWS-WSRO
The Solid Waste Section (Section) has determined that the Dupont Industrial Landfill,
permit number 88-06 is in compliance with Rule .0503(d)(iii) of the solid waste management
rules codified at 15A NCAC 13B. Dupont has satisfied the criteria of this rule by closing their
landfill before January 1, 1998. Closure should be conducted in accordance with Rule .0505,
Rule .0510 and the landfill permit.
If there are any questions regarding this letter, please call Susan Leistiko at (919) 733-
0692 extension 262.
Sincerely,
es C. Coffey, Superv1 or
Permitting Branch
Solid Waste Section
cc: Dexter Matthews
Susan Leistiko
Julian Foscue
Jim Patterson
C:\WRIGHT\PROJECTS\INDUSTRL\DUPNT 88\APPROVED.I
P.O. Box 27687, NwAWf
CFAX 919-715-3605
Raleigh, North Carolina 27611-7687An Equal Opportunity Affirmative Action Employer
Voice 919-733-4996 50% recycled/ 100% post -consumer paper

PUBLIC NOTICE FOR RCRA CORRECTIVE ACTION PERMIT
MODIFICATION REQUEST FOR DUPONT — CEDAR MOUNTAIN
This is to notify the public of the request by DuPont to modify the RCRA Corrective
Action Permit for the DuPont facility located at 701 DuPont Drive in Cedar Mountain,
North Carolina. This notice announces a 60-day comment period, beginning on the date
of this publication, where the public is invited to provide comments regarding the permit
modification request.
A Public Meeting will be held May 25, 2010 at 4:00 pm in the former DuPont
Manufacturing Site Visitors Center, 701 DuPont Drive, Cedar Mountain, North Carolina.
The former DuPont Manufacturing Site entrance is 300 yards from the Buck Forest Road
Parking lot of the DuPont State Forest. All attendees will have the opportunity to review
the modification request and provide comments. DuPont will provide auxiliary aids and
services for disabled persons who wish to participate in this public hearing to comply
with the. Americans with Disabilities Act.
Written comments may also be sent during the public comment period, ending June 14,
2010, to the following address:
Elizabeth W. Cannon, Chief
North Carolina Hazardous Waste Section
MSC 1646
401 Oberlin Rd. Suite 150
Raleigh, NC 27699-1646
Copies of the permit modification request and supporting documentation are available for
public review at the DuPont Manufacturing Site Visitor Center, from 9:00 am to 4:00 pm,
Monday through Friday. Please contact Mr. Chet Meinzer, [phone], to set up an
appointment to review the modification request information or request special services
for the public meeting. The permittee's compliance history during the life of the permit
being modified is available from the Agency contact person.
A summary of the permit modification request follows: The former DuPont —Cedar
Mountain facility has been issued a State RCRA Corrective Action Permit that requires
corrective action for contamination resulting from past waste management activities at
the facility. DuPont is requesting the permit be modified to establish a Corrective Action
Management Unit (CAMU) to consolidate remediation waste materials from several
areas of the site into one location. The establishment of the CAMU will facilitate the
remediation process, ensure protection of human health and the environment, and
maximize the future use of the property.
All comments received during the public comment period or at the public meeting will be
considered in the decision regarding this permit modification request. A future public

hearing will be held by the State related to their decision to grant the permit modification
request. Anyone desiring additional information may contact:
Mr. Mark Wilkins or Mr. Jamie VanBuskirk
NC DENR, MSC 1646 DuPont Project Director
401 Oberlin Rd., Suite 150 6324 Fairview Road
Raleigh, NC 27699-1646 Charlotte, North Carolina 28210
[phone]. [phone]

State of North Car(,,lna
Department of Environment,
Health and Natural Resources AC4j
Division of Solid Waste Management 71
James B. Hunt, Jr., Governor OL
Jonathan B. Howes, Secretary
William L. Meyer, Director
February 26, 1996
Mr. Edward Hallowell
DuPont Medical Products
Brevard, N.C. 28712
RE: DuPont Landfill Closure (Permit # 88-06)
Dear Mr. Hallowell,
The Solid Waste Section has been informed that DuPont plans to
close the two landfills included under Permit No. 88-06. It is our
understanding that the North Landfill stopped receiving waste a
couple of years ago and DuPont also plans on ceasing operation at
the remaining landfill in the near future.
It is the policy of the Solid Waste Section to re-evaluate the
water quality monitoring system any time there is a change in the
permit status. Typically at the time of landfill closure, the
water quality monitoring systems are re-evaluated to determine if
the number, location, design, and maintenance of the ground -water
monitoring wells and surface water monitoring locations are
adequate to provide effective detection monitoring for post -closure
monitoring.
cy
Since the focus of the Solid Waste Section in recent years has been
on the Subtitle D Rules for municipal solid waste landfills, it has
been some time since the Section has evaluated most industrial
landfill water quality monitoring systems. Therefore it is
important that this is done at this time in order to be able to
finalize closure of the facility.
It would be good if representatives of DuPont and their engineering
and geologic consultants could meet the Solid Waste Section to
discuss what is needed in order to evaluate and possibly upgrade
the water quality monitoring systems for the two landfill units.
A site visit by a representative of the Hydrogeologic Unit of the
Solid Waste Section would be useful, so it might be best to
schedule the proposed meeting at the DuPont facility.
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

Mr. Edward Hallowell
DuPont Landfill Closure
Page 2
Solid Waste Section policy requires five years of post -closure
water quality monitoring from the time the facility is officially
closed as documented in writing by the Section. After five years
of post -closure monitoring, a determination is made by the Section
regarding the need for further monitoring.
Please contact me at your convenience to set up a meeting to
discuss post -closure monitoring needs at the two landfills. If you
have any questions about water quality monitoring requirements for
the landfills, please call me at [phone], extension 258.
Sincerely,
Bobby Lutfy
Hydrogeologist
Solid Waste Section
cc: Jim Coffey, Solid Waste Section
Mark Poindexter, Solid Waste Section
Jim Patterson, SWS - Asheville Regional Office

NC DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
Division of Solid Waste Kanagement
Solid Waste Section
SOLID WASTE MANAGE?ENT FACILITY EVALUATION REPORT
Type of Fac i l i ty ]• - l tall ".A-� tI �, 7 V + } Permit * { x (? i , Canty
Name of Facility. Location S-C\ ) ��� CC (i rh
Date of Last Evaluation t
I. Permit Conditions Followed i Yes No N/A
A. Specific Condition(s) Violated
II. Operational Requirements Followed Yes No
15A N.C. Actin. Code 13B Section
A_ Specific Violation(s) by number and letter.
III. Other Violations of Rule or Law
IV. Evaluator's Comments r) y" r }rr to t �; C, on '
i
` 5
r
V. Continuation Page Required? Yes No Receiving Signature
�fl
Evaluation Date Solid Waste Section
DEHNR 3793 (Part I White: Facility Part II Canary: Central Office Part III Pink: Regional Office)
Solid Waste Section (Review 7/%)

Purpose: G.S. 130A-294 requires that an evaluation program be established for the
operation of solid waste management facilities on a statewide basis. The
Solid Waste Management Act and Solid Waste Management Rules codified at
15A NCAC 13B list requirements which must be followed by solid waste
facilities.
Ihstnicticms: Solid Waste Section personnel shall complete the evaluation form each
time they conduct official evaluations. The form shall be signed by
the person(s) receiving the report.
Distribution: Part I Mute: facility copy
Flart II Gmary: Raleigh cential office file copy
Part IEEI Puk: Regional office file copy
Disposit cn: This form may be retained in accordance with the Record Retention and
Disposition Schedule of the Solid Waste Section, Solid Waste Management
Division of the Department of Environment, Health and Natural Resources.

NC DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
Division of Solid Waste Ilanagerrent
Solid Waste Section
SOLID WASTE MANAGEMENT FACILITY EVALUATION REPORT
Type of Faci I i ty C t`. Permit M f county P e 1
`... tt { , Location � A
Name of Facility � t �, /,'�+s,r� �' �� '' 4p rt'._ I< � � � � .� � ''� , � r �'r � i?`*
Date of Last Evatuation
I_ Permit Conditions Followed Yes No N/A
A_ Specific Condition(s) Violated
II. Operational Requirements Followed Yes No
15A N.C_ Admin. Code 130 Section « ")
A_ Specific Violation(s) by number and letter.
III. Other Violations of Rule or
IV. Evaluator's Comments
V. Continuation Page Required? Yes No Receiving Signature
Evaluation Date Solid Waste Section
DEHNR 3793 (Part I White: Facility Part II Canary: Central Office Part III Pink: Regional Office)
Solid Waste Section (Review 7/94)

Purpose: G.S. 130A-294 requires that an evaluation program be established for the
operation of solid waste management facilities on a statewide basis. The
Solid Waste Management Act and Solid Waste Management Rules codified at
15A NCAC 13B list requirements which must be followed by solid waste
facilities.
Instructions: Solid Waste Section personnel shall complete the evaluation form each
time they conduct official evaluations. The form shall be signed by
the person(s) receiving the report.
Diztribution: Part I Mute: facility copy
Pi3rt II r. central e .•.
Part III Pink: Regional office file copy
Disposition: This form may be retained in accordance with the Record Retention and
Disposition Schedule of the Solid Waste Section, Solid Waste Management
Division of the Department of Environment, Health and Natural Resources.

NC DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
Division of Solid haste Management
Solid Waste Section
SOLID WASTE MANAGEMENT FACILITY EVALUATION REPORT
t y F
Type of Facility .�! r1�a"}" 1 4 t '1 i : +. i j Permit # County
Name of Fac i l i ty _s (.,t i )V,1� l 2L 1 �� i-1 Location
Date of Last Evaluation `,
I. Permit Conditions Followed Yes No N/A
A. Specific Condition(s) Violated
II. Operational Requirements Followed Yes No
15A M.C. Admin. Code 138 Section J !
A_ Specific Violation(s) by amber and letter.
n r
7�. r i� � i t � �) ri � �a rl J; r'!r� %�f [. '(' �"t I�ll ��'�� ? `�-� �'���l.�a ! ����•'�" �' �'`►�
III_ Other Violations of Rule or L
IV. Evaluator's Comments y aP ll, )"e_ �- % ,
V. Continuation Page Required? Yes" No Receiving Signature
d
Evaluation Date jf ?) Solid Waste Section F<�
DEHNP 3793 (Part I White: Facility Part II Canary: Central Office Part III Pink: Regional Office)
Solid Waste Section (Review 7/94)

Purpose: G.S. 130A-294 requires that an evaluation program be established for the
operation of solid waste management facilities on a statewide basis. The
Solid Waste Management Act and Solid Waste Management Rules codified at
15A NCAC 13B list requirements which must be followed by solid waste
facilities.
Instructions: Solid Waste Section personnel shall ccuplete the evaluation form each
time they conduct official evaluations. The form shall be signed by
the person(s) receiving the report.
it _ . co,
Part u canary: Raleigh central office file copy
Part IIEI Puk: Regional office file copy
Dispositiat: this form may be retained in accordance with the Record Retention and
Disposition Schedule of the Solid Waste Section, Solid Waste Management
Division of the Department of Environment, Health arxi Natural Resources.

TABLE OF CONTENTS
1 Information Required for Disposal & Borrow Area
Part A Disposal Area
Part B Borrow Area
2 Information for Disposal Area Only
3 Written Report `-
4 Ground Water and Surface Water Monitoring Programs
5 Determination of Availability and Accuracy of Soil
for Daily and Final Cover
L 1
Landfill Evaluations (20 x 28)
12a
Final Contours
1-2b
Fill Sequence
L3
Erosion Control Plan
Loa
Typical Profile - Cell 3
Lob
Typical Profile - Cell 1
L5
Letter - Water Quality Monitoring
L6
Legal Description of Plat
L7
Estimate Lifetime Calculation
ATTACHMENTS - BORROW AREAS
BNa
N Borrow Area (Final Cover)
BNb
N Borrow Area (Final Contour)
BNc
Topographical Survey (22 x 34)
BW
W Borrow Area
BT
Soil Tests: Letter & Lab Results
BTN
Moisture Relationship - N Area (2)
BTW
Moisture Relationship - W Area (2)
BVN
Soil Volume Calculations - N Area (2)
BVW
Soil Volume Calculations - W Area
NOTE: Application materials were prepared by W. R. Okie, PE, bontract Engineer
Registered NC #06618
1
2
4
4
4
5
0

1
Part A - Disposal Area
a. MR - see "Landfill Elevations" map Ll (20 x 28)
1. Existing top2gralft is shown, scale: 1" = 50'; contour interval: 5'.
ii. Elevations and coordinates are referenced to bench mark elevation 2538.41, a concrete marker
at N13336 E 22125.
ui. No buildinas are in the landfill site; existing nearby buildings are 150' or more to the east.
b. Grading Plan _
i. Dikes surround the site except to the west where are situated the plant site (55' elev.) and a hill
(90' elev.).
ii. Surface water diversion is controlled by catch basins at SE, NE, and NW comers.
As the vertical expansion progresses, a basin will be constructed at the fourth (SW) comer. See
detail in Erosion Control Plant (1-3).
To minimize sedimentation, landfill slopes are gradual, and the inactive part is in grass.
00
i. Proposed final contours are shown on "Du Pont Sanitary Landfill -Final Contours" = (81/2 x
11).
The final contours will be generally as at present but at approximately 10' higher elevation.
if. Sediment Catch Basins are to be located at all four comers to minimize the travel of surface run-
off water. All basins, whether new or modified in connection with the expansion, will be in
accordance with the design shown in the Erosion Control Plan (1-3).
i. TempQraly erosion control measures include avoiding steep slopes which contribute to erosion
and maintaining grass cover on the inactive portions of the landfill.
ii. Permanent erosion control measures are detailed in the Erosion Control Plan prepared by
Numerical Methods Associates of Asheville (see Attachment L3).
ui. Seeding will follow the recommendations included in the above Erosion Control Plan.
Note: The following comments are in further explanation of the Erosion Control Plan.
1. To minimize gradient across the landfill, four sediment catch basins with overflow are planned.
For conservative sizing, it is assumed that any one basin may carry )a (rather than a quarter of)
the total runoff load.
The existing landfill has three basins. As dikes are raised to accommodate the proposed
expansion, existing basins will be adjusted to conform to the sketch included in the Erosion
Control Plan.

W�
Part A - Disposal Area (contd.)
MWMIRTRU Met Me IQF-rjW=
2. Emergency outlet - A single emergency outlet is planned for the runoff from the entire landfill
area. Consideration of the points below lead to the decision for the single emergency outlet:
- topography is such that little runoff from outlying areas reaches the landfill.
- the four primary outlets are conservatively sized: there is little likelihood of any
of them ever reaching overload.
- assumed storm parameters are conservative: primary outlets - 25 years,
emergency outlet - 100 years.
3. Erosion Control-Me-asures - sediment retention. Because of the gradual slopes in the landfill,
runoff velocities will be slow. Little sediment will be carried; carried sediment will tend to settle
out enroute to basin.
e. Detailed Diagrams - with typical sections of:
i. Diko - see sketch in Erosion Control Plan L3 (81/2 x 11)
ii. Trenches - no trenches; trough with riprap for Emergency Outlet as shown in Erosion Control
Plan La
Ui. Sediment Basins - see sketch in Erosion Control Plan La
iv. Other pertinent details - see "Typical Profile - Cell 3. Vertical Coordinate 350" and "Typical Profile
- Cell 1, Vertical Coordinate 100" j 4a & b (81/2 x 11)
Part B - Borrow Area
Note: Twob arrow sites are available:
N Borrow Area is a part of the Demolition Landfill. This landfill was described in the Application
submitted in April,1989. Soil in the north end (primarily Cell No. 3) of this site will be reserved for
final cover.
W Borrow Area is a hill lying adjacent to the sanitary landfill. This site has been and will be a
source of daily cover.
Note: Since September, 1989, when the application for this expansion was first submitted, part of this
hill was removed for fill for the access road to the new Alternate Fuels Boiler. The remaining earth
(elevation 60' - 80') will be more than adequate for daily cover. Overall, plans remain the same.
a. M-=
N: See "N Borrow Area for Final Cover" l3Ng (81/2 x 11)
Note: This map was constructed from the survey map "Topographical Survey for Landfill"_Ng
(22 x 34) which was part of the Demolition Landfill Application. Copy of this survey map is
included.
W

3
Part B - Borrow Area (contd.)
a. Matz (contd.)
W: See "W Borrow Area for Daily Cover" Dp( (81/2 x 11)
L These maps show existing topography
ii. Bench Mark elevations area referenced on the map.
iii. Neither site has existing buildings.
• .•"14'.,
i. N Borrow Area:-- Present topography (bowl shaped) of this site precludes the need for dikes.
The operating plan will continue to take advantage of this feature.
W Borrow Area: A small d& will be maintained on the south (working) site of the site as
protection against inadvertent run off.
I Surface water diversion at both sites will be through the sediment catch basins shown on the
maps.
L Final contours at both borrow sites will provide run-off through the sediment catch basin as
shown on the maps.
N: Final contours are shown on "N Borrow Area - Final Contours* -BM (81/2 x 11).
E: Final contours of this borrow area cannot be predicted at this time; this is a prime site for
other uses which later may require removal or rearrangement of much of this soil. The area
will be in grass except for the working face. See "W Borrow Area" DR (81/2 x 11 ).
if. Slope drains are not planned.
L During operation grades will be maintained to avoid puddling and to minimize erosion and
sedimentation. All surface water run off will be through sediment settling basin.
ii. On completion of the borrow operation, sediment collection basins will provide permanent
protection. Accumulated sediment will be removed periodically to insure and their effectiveness
continues.
iii. During operation and upon completion, seeding will be carried out as soon as is possible. The
Plant standard is Kentucky 31 Fescue/Ryegrass (30#/15# per acre) + 10-10-10 fertilizer (1/2
T/acre).
i. Dikes - See sketch in Erosion Control Plan 1a (8 1/2 x 11)*
ii. Trenches - None planned.
iii. Sediment Basins - See sketch in Erosion Control Plan J $
Note: This sketch is for the landfill basins. Features at the Borrow Site will be similar.

. 4
• : • . • : 769ab : a : �til►�11��i
a. Cross Sections of disposal area
Both i. and ii. are shown on the two 81/2 x 11 sketches - "Typical Profile - Cell 3 - Vertical Coordinate
350" and "Typical Profile - Cell 1 - Vertical Coordinate 150" Loa & b.
MEMNIN - •• 11.1 I• . • • • •. •1 • ••• •�
i. Design and construction of dikes - see sketch in Erosion Control Plan La
H. Sequence of filliria - see, Construction Plan - see Fill Sequence (81/2 x 11), Phase I of the
construction plan will add 5'to Cell 1, working from west to east, then follow with Cells 2 through
5 in order. Phase II will duplicate Phase I. "Du Pont Sanitary Landfill Fill Sequence" = (81/2 x
11).
Insofar as possible, it is planned to confine the active area to the working face of the cell being
filled. At reasonable intervals, the covered portion of the active cell will be seeded. In the other
cells, grass will be maintained except when not feasible because of some temporary
requirement. Seeding will be in accordance with the standard method specified above.
�R.YE-Mgmazialla
Powerhouse Supervisor, Bruce J. Blythe
b. Anticipated lifetime is estimated at 19.5 years but will depend on quantity of waste diverted to the new
Alternate Fuels Boiler. See attachment U for calculation estimating life and
discussion of boiler.
It is felt that the above will be provided by the proposed filling sequence through 5 cells in two phases,
with frequent seeding and continual use of catch basins to control sedimentation.
I. No special equipment will be needed for the vertically expanded landfill site. Operation will be a
continuation of current practices and existing equipment is expected to be adequate.
It is felt that the present ground water monitoring program is adequate and should continue to be adequate
with this vertical expansion, which will in fact upgrade the character of the operation. Up- and downstream
samples are taken from Little River (which is adjacent to the site). In addition there are four monitoring wells
near the waste treatment ponds about 2,000' NNW of the site.

5
4. GROUND WATER AND SURFACE WATER MONITORING PROGRAMS (contd.)
No evidence of contamination has arisen since this monitoring program" began in November, 1987 (wells),
and 1988 (river). Most of the material entering this site is innocuous: scrap packing materials, scrap
polyester base (non -biodegradable), empty containers, etc.
This landfill will not be used for hazardous materials as defined in the RCRA regulations.
` Ref: Letter 3/4/88, "Water Quality Monitoring Program", to Michael L. Babuin, Div. of Health Services,
from E. K. Hallowell, Du Pont (copy attached: W.
a. Soil boring information is shown on the enclosed report sheets from Atlanta Testing and Engineering
(ATE), Greenville, SC, office. Bj, B(, B(
b. Tests show the soil at the two sites to be generally similar. The soil at N Borrow Area is less {permeable,
and this will be reserved for the final cover.
c. Earthwork Calculations - Soil volume calculations are included for both borrow sites. These are based
areas of contours (5' intervals) determined by polar planimeter. fee BVW & BVN.
Soil in N Borrow Area Cell 3 will be reserved for final cover.
Soil in W Borrow Area is available for daily cover.
rIM
M"

NC DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
Division of Solid Waste Management
Solid Waste Section
SOLID WASTE MANAGEMENT FACILITY EVALUATION REPORT
Type of Facility. f '(i S r r_I f Permit # Canty r.r , 6
Name of Facility1IA F. i -z,, ff J i n Location
S
Date of Last Evaluation i I t 4 t (,i i,
I. Permit Conditions Followed Yes No N/A
A. Specific Condition(s) Violated
II_ Operational Requirements Followed 1:1, Yes NO
15A N.C. Admin. Code 13B Section n r
A_ Specific Violation(s) by nxamber and letter.
t` �,• i .. VI. �!) 1 ; -Q t.
III. Other Violations of Rule or Law
IV_ Evaluator's Conments
V . Continuation Page Required? Yes No
Evaluation Date
DIE w3793 (Part I White: Facility
Soid1 Waste Section (Review 7/94)
Receiving Signature"
Solid Waste Section
Part II Canary: Central Office Part III Pink: Regional office)

Purpose: G.S. 130A-294 requires that an evaluation program be established for the
operation of solid waste management facilities on a statewide basis. The
Solid Waste Management Act and Solid Waste Management Rules codified at
15A NCAC 13B list requirements which must be followed by solid waste
facilities.
Instructions: Solid Waste Section personnel shall conplete the evaluation form each
time they conduct official evaluations. The form shall be signed by
the person(s) receiving the report.
Distribution: Part I White: facility cry
Part II Canary: Raleigh central office file copy
Part M Pink: regional office file copy
Dispositioni: This form may be retained in accordance with the Record Retention and
Disposition Schedule of the Solid Waste Section, Solid Waste Management
Division of the Department of Environment, Health wxl Natural Resources.