WQ0001487_Final Permit_19900104

State of North Carolina
Department of Environment, Health and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor
William W. Cobey, Jr., Secretary
Charles R. Wakild
Acting Director
January 4, 1990
Mr. Jon Moon
Occidental Chemical Corporation
PO Box 368
Castle Hayne, NC 28429
Subject: Permit No. WQ0001487
Occidental Chemical Corporation
SIudge Treatment & Storage Facilities
(Intermediate Holding Lagoon)
Castle Hayne Facility
New Hanover County
Dear Mr. Moon:
In accordance with your application for permit renewal received April 3, 1989, we are
forwarding herewith Permit No. WQ0001487, dated January 4, 1990, to Occidental Chemical
Corporation for the continued operation of the subject sludge treatment and storage facilities.
This permit shall be effective from the date of issuance until January 4, 1993, shall void
Permit No. 6612R6A2, and shall be subject to the conditions and limitations as specified therein.
If any parts, requirements, or limitations contained in this permit are unacceptable to you,
you have the right to request an adjudicatory hearing upon written request within 30 days
following receipt of this permit. This request must be in the form of a written petition, conforming
to Chapter 150B of North Carolina General Statutes, and filed with the Office of Administrative
Hearings, P.O. Box 11666, Raleigh, NC 27604. Unless such demands are made this permit shall
be final and binding.
If you need additional information concerning this matter, please contact Mr. Jack Floyd at
9191733-5083.
Pchaqxr
erely, ,
les R. W d
cc: New Hanover County Health Departent
Wilmington Regional Office
Groundwater Section
Woodward -Clyde Consultants
Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 'Telephone [phone]
An Equal Opportunity Affirmative Action Employer

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
IMMIG"M
SLUDGE STORAGE AND DISPOSAL PERMIT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North
Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Occidental Chemical Corporation
New Hanover County
ITO C.SMI .
continued operation of a 530 cubic yard per day waste sludge disposal system consisting of an
existing sludge mixing tank for the addition of cement kiln dust, hydrated line, or agricultural
limestone, a sludge disposal lagoon with approximately 138,850 cubic yards of capacity (only
82,800 cubic yards of current capacity available), a 200 GPM supernatant return pump,
approximately 900 linear feet of 4 -inch return pipe, approximately 1,600 linear feet of parallel
4 -inch influent pipe, and existing pipes, valves and fittings for the stabilization of waste sludge
from the Occidental Chemical Company's Castle Hayne Facility with no discharge of wastes to
the surface waters, pursuant to the application received April 3, 1989 and in conformity with the
project plan, specifications, and other supporting data subsequently filed and approved by the
Department of Environment, Health and Natural Resources and considered a part of this permit.
This permit shall be effective from the date of issuance until January 4, 1993, shall void
Permit No. 6612R6A2, and shall be subject to the following specified conditions and limitations:
This permit shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans, specifications, and other supporting
data.
2. This permit is effective only with respect to the nature and volume of wastes described in
the application and other supporting data.
3. The facilities shall be properly maintained and operated at all times.
4. This permit is not transferable. In the event there is a desire for the facilities to change
ownership, or there is a name change of the Permittee, a formal permit request must be
submitted to the Division of Environmental Management accompanied by an application
fee, documentation from the parties involved, and other supporting materials as may be
appropriate. The approval of the request will be considered on its merits and may or may
not be approved.

5. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those as
may be required by this Division, such as the construction of additional or replacement
wastewater treatment or disposal facilities.
6. The sludge generated from these treatment facilities must be disposed of in accordance with
General Statute 143-215.1 and in a manner approved by the North Carolina Division of
Environmental Management.
7. The issuance of this permit shall not relieve the Permittee of the responsibility for damages
to surface or groundwaters resulting from the operation of this facility.
8. The facilities shall be effectively maintained and operated as a non -discharge system to
prevent the discharge of any wastes resulting from the operation of this facility.
9. Diversion or bypassing of untreated sludge from the treatment facilities is prohibited.
10. Freeboard in the storage lagoon shall not be less than two feet at any time.
11. Any monitoring deemed necessary by the Division of Environmental Management to insure
surface and ground water protection will be established and an acceptable sampling
reporting schedule shall be followed.
12. Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to
insure proper operation of the subject facilities.
13. The Permittee or his designee shall inspect the sludge treatment and storage facilities to
prevent malfunctions and deterioration, operator errors and discharges which may cause or
lead to the release of wastes to the environment, a threat to human health, or a nuisance.
The Permittee shall keep an inspection log or summary including at least the date and time
of inspection, observations made, and any maintenance, repairs, or corrective actions taken
by the Permittee. This log of inspections shall be maintained by the Permittee for a period
of three years from the date of the inspection and shall be made available upon request to
the Division of Environmental Management or other permitting authority.
14. Any duly authorized officer, employee, or representative of the Division of Environmental
Management may, upon presentation of credentials, enter and inspect any property,
premises or place on or related to the disposal site and facility at any reasonable time for the
purpose of determining compliance with this permit; may inspect or copy any records that
must be kept under the terms and conditions of this permit; or may obtain samples of
groundwater, surface water, or leachate.
15. The annual administering and compliance fee must be paid by the Permittee within thirty
(30) days after being billed by the Division. Failure to pay the fee accordingly may cause
the Division to initiate action to revoke this permit as specified by 15 NCAC 2H .0205
(c)(4).
16. Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to an enforcement action by the Division of Environmental Management in
accordance with North Carolina General Statute 143-215.6.
17. The issuance of this permit does not preclude the Permittee from complying with any and
all statutes, rules, regulations, or ordinances which may be imposed by other government
agencies (local, state, and federal) which have jurisdiction.
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18. Noncompliance Notification:
The Permittee shall report by telephone to the Wilmington Regional Office,telephone no.
919-256-4161, as soon as possible, but in no case more than 24 hours or on the next
working day following the occurrence or first knowledge of the occurrence of any of the
following:
a. Any occurrence at the sludge treatment facilities which results in the treatment of
significant amounts of wastes which are abnormal in quantity or characteristic, such
as the dumping of the contents of a basin or tank; the known passage of a slug of
hazardous substance through the facility; or any other unusual circumstances.
b. Any process unit failure, due to known or unknown reasons, that render the facility
incapable of adequate sludge treatment such as mechanical or electrical failures of
pumps, aerators, compressors, etc.
C. Any failure of a pumping station, sewer line, or treatment facility resulting in a
by-pass directly to receiving waters without treatment of all or any portion of the
influent to such station or facility.
d. Any time that self-monitoring information indicates that the facility has gone out of
compliance with its permit limitations.
Persons reporting such occurrences by telephone shall also file a written report in letter
form within 15 days following first knowledge of the occurrence. This report must outline
the actions taken or proposed to be taken to ensure that the problem does not recur.
19. The Permittee shall employ a certified wastewater treatment plant operator to be in
responsible charge of the wastewater treatment facilities. The operator must hold a
certificate of the grade at least equivalent to the classification assigned to the wastewater
treatment facilities by the Certification Commission.
20. The Permittee, at least six (6) months prior to the expiration of this permit, shall request its
extension. Upon receipt of the request, the Commission will review the adequacy of the
facilities described therein, and if warranted, will extend the permit for such period of time
and under such conditions and limitations as it may deem appropriate.
21. Should electrical or mechanical failure occur with any facility associated with the sludge
stabilization process, the facilities shall cease operation immediately.
22. Samples of the chromium sludge -kiln dust mixture, chromium sludge -agricultural
limestone mixture, or chromium sludge -hydrated lime mixture shall be collected and
analyzed by the EP Toxicity test (chromium) to insure that the sludge is in fact
non -hazardous as defined by RCRA regulations. Reports of the analyses (one grab sample
per week and one weekly composite sample) shall be submitted monthly to the Regional
Supervisor of the Wilmington Regional Office.
23. Quarterly reports on the filling status of the lagoon shall be submitted to the Regional
Supervisor of the Wilmington Regional Office. The reports may include, but not be limited
to, an assessment of the cumulative sludge volume in the lagoon, the volume available,
and estimate of the remaining useful life of the lagoon.
24. All supernatant from the lagoon shall be collected and returned to the manufacturing
complex.
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25. This permit shall become voidable once the available capacity (82,800 cubic yards) of the
lagoon has been. reached.
26. No type of sludge other than that from the Occidental Chemical Corporation Castle Hayne
Facility shall be placed in the disposal lagoon.
27. Groundwater quality monitoring shall be performed and reports submitted as required by
the Special Order by Consent (EMC GW# 88-01.).
28. The Permittee shall submit a closure plan to the Regional Supervisor of the Wilmington
Regional. Office three months prior to the planned closure of the lagoon. The contents of
this closure plan shall be negotiated with the Wilmington Regional Office and approved
prior to implementation.
Permit issued this the 4th day of January, 1990
NOl�TH CAROLINA NVIRONMENTAL MANAGEMENT COMMISSION
Charles R. Wakil A tiDirector
Division of Environs nt Management
By Authority of the Environmental Management Commission
Permit No. WQ0001487
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