WI0700012_Application_19960111

DIVISION OF ENVIRONMENTAL MANAGEMENT
GROUNDWATER SECTION
January 4, 1996
MEMORANDUM
TO:
THROUGH: Willi�'tIardison, Regional Groundwater Supervisor
Washington Regional Office
Karen Harmon
Underground Injection Control
FROM: Guy Pearce, Hydrogeoiogist
Washington Regional Office
SUBJECT: UIC Permit Modification Request
PCS Phosphate Company, Inc. - Beaufort Co.
Tank Farm Remedial Action System
Permit No. WI0700012
4
t� ;-":3 ")
The Washington Regional Office has reviewed the request to
modify Part II A(2) - SPECIFIC CONDITIONS of the subject UIC
permit (copy attached). The Modification involves: 1) changing the
maximum allowable Total Dissolved Solids (TDS) concentration from
475 mg/1 to 500 mg/1; 2) expanding the allowable pH range from 6.0
- 7.0 to 6.0 - 8.5, and; 3) increasing the allowable Total Organic
Carbon (TOC) concentration from 4.3 mg/1 to 8.0 mg/l.
The proposed modifications are intended to reflect the quality
of depressurization well water (DPW) that the company is proposing
to use as a replacement water source for the existing Tank Farm
Remediation System. (The current water source for the remediation
project has historically failed to meet the water quality
requirements of the company's UIC operating permit.) It should be
noted that the Tank Farm Remediation System is designed to function
as a "closed loop" in that water introduced into the subsurface via
the injection wells is recaptured by recovery wells located
downgradient of the injection wells. The recovered groundwater is
incorporated into PCS's mining/manufacturing "process water" and is
ultimately discharged into surface waters (Pamlico River), as
allowed by the company's NPDES permit.
Based on the above, our office does not anticipate an adverse
impact to human health or the groundwater resources of the state as
a result of the proposed modifications; therefore we do not object
to granting this request. If you have any questions, or wish to
discuss this matter further, please contact me at any time.
cc: WaRO Files

PCS
PhosphateW AURORA DIVISION
P.O. BOX 48, AURORA, NC 27806
December 13, 1995
Attn: Karen Harmon
Underground Injection Control Program
Groundwater Section
NC - DEHNR, Division of Environmental Management
P. O. Box 29578
Raleigh, North Carolina 27626-0578
Subject: PCS Phosphate Company, Inc.
Pilot Plant Study - Injection Well Water Supply
Tank Farm Remedial Action System
Permit - WI0700012
Dear Karen:
f. 7
WASHINGTONEG
OFFICE
DEC 1 8 1995
D.EIIM.
As requested by Elizabeth Morey's letter dated March 17, 1995, PCS Phosphate submits the
attached report to address the information concerning the Tank Farm Remediation System. The
attached report contains the following information:
1) The results of the pilot study,
2) the plan for treating depressurization well (DPW) water prior to injection, and
3) the schedule for construction and operation of the proposed system to replace the well
water supply.
The attached report indicates that use of treated DPW water as a supply to the Tank Farm
remediation system will require a modification of three of the limitation values contained in the
subject permit. If the DEM concurs that treated DPW water is the best alternative to the present
well water supply, PCS Phosphate requests that the pH range of the water supplied to the
injection system be expanded to a range of 6.0 to 8.5, that the TOC limitation value be increased
from 4.3 mg/1 to a value of 8.0 mg/1, and that the TDS limitation value be increased from 475
mg/1 to 500 mg/1.
If there are any further questions about this report please contact me @ [phone].
Sincerely,
Timothy F. Walls
Environmental Engineer
pc: Willie Hardison/ Guy Pierce- DEM WaRO BAP/00-18-000
W. A. Schimming T. L. Baker
15-03-003-02

Tank Farm Remediation System Injection Well Water Replacement
Introduction
A pilot water treatment system was rented in June 1995 to determine if the facility's
depressurization well (DPW) water could be used as a replacement water source for ground
water supply to the Tank Farm remediation system. The pilot system consisted of a multi -media
anthracite/sand filter (ASF) and a ultraviolet (UV) light treatment tube. The purpose of the ASF
was to remove any suspended solids from the DPW water. The ASF was followed by treatment
with UV light to disinfect any bacteria in the water stream.
The pilot system began operation on 07/13/95 and operated until 12/04/95. The pilot system
operated at a flow rate of 4 gallons per minute. The water from the pilot system was disposed
into the plantsite's water management system and not introduced into the remediation system.
Results of the Pilot Study
Attachment 1 summarizes the water quality data taken during the pilot study. As shown, the
ASF/UV system produced a water stream from the DPW that was in compliance with the
limitations of the subject permit with two exceptions - TOC and pH. The TOC values averaged
5.2 mg/I versus the permitted limitation value of 4.3. pH values ranged from 7.1 to 7.9
throughout the study which were above the 6.0 to 7.0 range required by the permit. It was
expected that the pH range of the DPW water would be above these values because its normal
pH ranges from 6.7 to 8.2 (year-to-date 1995 values). All of the analysis were negative for the
presence of any coliform bacteria indicating that UV light disinfection was successful.
Proposed Treatment System
Attachment 2 is an illustration of the proposed ASF/UV treatment system, which, if approved,
will operate as a full scale water supply source for the Tank Farm injection well water system.
This system will ASF/UV treat the DPW water to use as injectate water in the remediation
system. The full scale system will have a design flow rate of 16 gallons per minute (the normal
steady state flow rate into the injection system). The ability to use steam condensate as a
supplement to this water source will also remain.
Monitoring Activities
PCS Phosphate proposes to maintain the quarterly sampling schedule and analysis requirements
of CIW-7 outlined in the subject permit. We also propose to sample and analyze the injection
well system Water Level Control Tank (WLCT) and the product water from the SCF/UV
treatment system on a quarterly basis. CIW-7 samples will continue to be analyzed for the
parameters of cadmium, chromium and manganese. The concentrations of these metals remain
constant throughout the system so the WLCT and the SCF/UV will not be sampled for these
parameters.

Tank Farm Remediation System Injection Well Water Replacement Page 2
Implementation Schedule
Upon concurrence of DEM to proceed with this project, PCS Phosphate will begin a
procurement process of an ASF/UV treatment system. Purchase, delivery, installation and start-
up of the treatment system equipment will be completed within seven months of the approval
date by the DEM. Until the new treatment system can be put into operation, PCS Phosphate
requests DEM permission to continue use of the present injection well water supply system as
the remediation system supply.
Permit Modification Request
If treated DPW water is allowed as a water supply to the remediation system, PCS Phosphate
requests that DEM revise the permit conditions to allow for an increased pH range, a higher
TOC value, and a higher TDS limitation. A pH range of 6.0 to 8.5, a limitation for TOC of
8.0 mg/1, and an increase in the TDS limitation to 500 mg/1 are requested.

Attachment 1
PCS Phosphate - Aurora Division
Pilot Plant Study - Injection Well Water Supply
Parameter
08/01/95
08/15/95
09/07/95
09/21/95
10/11/95
11/01/95
11/30/95
Avgs
Limits
Total Phosphorus mg/I
0.027
0.024
0.024
0.010
0.014
0.025
0.025
0.021
0.150
Fluoride mg/1
0.73
0.69
0.69
0.68
0.70
0.68
0.71
0.70
1.00
Chloride mg/1
10.8
10.7
9.0
10.6
13.0
10.0
11.5
10.8
55.0
Sulfate mg/1
<10
<10
<10
<10
<10
<10
<10
<10
50
TOC mg/I
4.0
528
6.0
6.0
4.8
4.2
6.0
5.2
5.2
4.3
TDS mg/1
412
330
380
496
357
354
408
475
Cadmium mg/1
<0.005
<0.005
<0.005
<0.001
N/A
<0:001
N/A
<0.005
0.005
Chromium mg/1
<0.05
<0.05
<0.005
<0.001
N/A
<0.001
N/A
<0.001
0.05
Manganese mg/I
<0.05
<0.05
<0.05
<0.05
N/A
<0.01
N/A
<0.01
0.05
Total Caliform /100 ml
<1
<1
<1
<1
<1
<1
N/A
<1
<1
pH
7.9 @19 oC
7.4 @26 oC
7.5 @22 oC
7.4 @24 oC
7.1 @21 oC
7.2 @19 oC
7.4
N/A
6.0 - 7.0

NOTES•
1.) ALL EOU/PMENT SKIP MOUNTED
2.) ALL ELECTRIC AUTOMATED
3J INSIDE A 18x 24x 12' PREFABRICATED BUILDING
2" SCHEDULE 40
E.vS DPW UPPLYC 4 0 4
�7
i
0
v
a
MULTIMED/A F)2I
2a x 60
24"x 60"
150 PS1 MAX. PRESS
CTIMEDIA FILTER
24"x 60"
0
0
v
0
BACKWASH PUMPS (2HP)
50 GPM, 30 PS/g
15 GPM
UV STERIL/ZER
BACIWAS1 TO
AREA GRANAir
POL YETHEL)ENE BACKWASH TANKS
86" DIAM. x 96" TALL
11
C4
v
A
UV STERIL/ZER --NI—
n
Lx
TG CAWING H2O
2" HENLYRG SlSIDI >
DRAWN L.N.MONTGOMERTY
CHECKED
APPROVED
APPROVED
PCS
Phosphate AURORA DIVISION
DRAVANG 111LE
MECHANICAL FLOW
IN✓ECAON WATER TREATMENT SYSTEM
ENGINEERING DATE:
J08 No. //5/95
SCALE:
NONE
DRAVANG No.
H2O/N✓SY

•
NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
RALEIGH, NORTH CAROLINA
PERMIT FOR THE OPERATION OF A FOR INJECTION
In accordance with the provisions of Article 7, Chapter 87; Article 21, Chapter 143, and
other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
PCS Phosphate Company, Inc.
FOR THE OPERATION OF AN INJECTION WELL SYSTEM consisting of 7 injection wells
for the purpose of injecting water. This well system is located in the Tank Farm area at PCS
Phosphate Company Inc., Aurora, North Carolina, in Beaufort County, and will be operated in
accordance with the application dated May 8, 1996, and in conformity with the specifications and
supporting data submitted, all of which are filed with the Department of Environment, Health, and
Natural Resources and are considered a part of this permit.
This permit is for Operation only, and does not waive any provisions of the Water Use Act
or any other applicable Laws, Rules, or Regulations. Operation and use of an injection shall be in
compliance with Title 15 North Carolina Administrative Code 2C, .0100 and .0200 and any other
Laws, Rules, and Regulations pertaining to well construction and use.
This permit is a renewal of Permit No. WI0700012 which was issued on January 30, 1996,
and shall be effective, unless revoked, from the date of its issuance until September 30, 2001, and
shall be subject to the conditions and limitations specified in Parts I through VIII herein. This
permit replaces and shall also supersede the Permit issued on January 30, 1996.
Permit issued this the 30 day of September, 1996.
Ted L. Bush, Jr., Assistant Chief
Groundwater Section
Division of Water Quality
By Authority of the Environmental Management Commission.
PERMIT NO. W10700012

PART I - GENERAL CONDTTIONS
1. The Permittee must comply with all conditions of this permit and with the standards and
criteria specified in Criteria and Standards Applicable to Injection Wells (15A NCAC 2C
.0200). Any noncompliance with conditions of this permit constitutes a violation of the
North Carolina Well Construction Act and is grounds for enforcement action as provided
for in N.C.G.S. 87-94.
2. This permit is effective only with respect to the nature, volume of materials and rate of
injection, as described in the application and other supporting data.
3. This permit is not transferable without prior notice to, and approval by, the Director of the
Division of Environmental Management (Director). In the event there is a desire for the
facility to change ownership, or there is a name change of the Permittee, a formal permit
amendment request must be submitted to the Director; including any supporting materials
as may be appropriate, at least 30 days prior to the date of the change.
4. The issuance of this permit shall not relieve the Permittee of the responsibility of
complying with any and all statutes, rules, regulations, or ordinances which may be
imposed by other local, state, and federal agencies which have jurisdiction. Furthermore,
the issuance of this permit does not imply that all regulatory requirements have been met.
PART II - PERFORMANCE STANDARDS
1. The injection facility shall be effectively maintained and operated at all times so that there
is no contamination of ground waters which will render them unsatisfactory for normal
use. In the event that the facility fails to perform satisfactorily, including the creation of
nuisance conditions or failure of the injection zone to adequately assimilate the injected
fluid, the Permittee shall take immediate corrective actions including those actions that
may be required by the Division of Environmental Management (Division) such as the
repair, modification, or abandonment of the injection facilities.
2. The Permittee shall be required to comply with the terms and conditions of this permit
even if compliance requires a reduction or elimination of the permitted activity.
3. 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.
PAGE 2 OF 7

PART III - OPERATION AND MAINTENANCE REQUIREMENTS
1. The injection facility shall be properly maintained and operated at all times.
2. The Permittee must notify the Division and receive prior written approval from the
Director of any planned physical alterations or additions in the permitted facility or activity
not specifically authorized by the permit.
PART IV - INSPECTIONS
1. 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 injection facility at any reasonable time for the
purpose of determining compliance with this permit, may inspect or copy any records that
must be maintained under the terms and conditions of this permit, and may obtain samples
of groundwater, surface water, or injection fluids.
2. Department representatives shall have reasonable access for purposes of inspection,
observation, and sampling associated with injection and any related facilities as provided
for in N.C.G.S. 87-90.
3. Provisions shall be made for collecting any necessary and appropriate samples associated
with the injection facility activities.
PART V - MONITORING AND REPORTING REQUIREMENTS
SECTION A
1. Any monitoring (including groundwater, surface water, or soil sampling) 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.
2. The Permittee shall report by telephone, within 48 hours of the occurrence or first
knowledge of the occurrence, to the Groundwater Section Staff, Washington Regional
Office, telephone number [phone], any of the following:
(A) Any occurrence at the injection well facility which results in any unusual
operating circumstances;
PAGE 3 OF 7

(B) Any failure due to known or unknown reasons, that renders the facility
incapable of proper injection operations, such as mechanical or electrical
failures.
3. Where the Permittee becomes aware of an omission of any relevant facts in a permit
application, or of any incorrect information submitted in said application or in any report
to the Director, the relevant and correct facts or information shall be promptly submitted
to the Director by the Permittee.
4. In the event that the permitted facility fails to perform satisfactorily, the Permittee shall
take such immediate action as may be required by the Director.
SECTION B
1. The Permittee shall collect samples from the riser pipe of C1 W7 (fluid to be injected into
last injection well in line) and from monitoring well MWTF-1C(groundwater from the
Croatan formation) every January, April, July, and October for the following parameters:
TDS Cadmium
TOC Chromium
Chloride Manganese
Fluoride SO4
pH Total Phosphorous
Total Coliform Organisms
The results of the sampling and analysis shall be submitted on Form GW-59 (Compliance
Monitoring Report Form) to the Underground Injection Control Program, Groundwater
Section, NC DEHNR-Division of Environmental Management, P.O. Box 29578, Raleigh,
NC 27626-0578 and to the Groundwater Section, Washington Regional Office, 1424
Carolina Avenue, Washington, NC 27889 every February, May, August, and November.
2. Provisions shall be made for collecting samples of the injection well system supply water,
both prior to its entrance to treatment devices and subsequent to leaving the treatment
devices but before entering the injection well.
3. The Permittee shall report any monitoring or other information which indicates that any
contaminant may cause an endangerment to an underground source of drinking water and
any noncompliance with a permit condition or malfunction of the injection system which
may cause fluid migration outside the injection zone or area of review. The information
shall be provided to the Regional Office orally within 24 hours of the occurrence and as a
written submission within five days of the occurrence. The written submission shall
contain a description of the noncompliance and its cause, the period of noncompliance,
including exact dates and times, and if the noncompliance has not been corrected, the
anticipated time it is expected to continue and any steps taken or planned to reduce,
eliminate, and prevent reoccurrence of the noncompliance.
PAGE 4 OF 7

4. The Permittee shall retain copies or records of all monitoring information, including all
calibration and maintenance records, all original strip chart recordings for continuous
monitoring instrumentation and copies of all reports required by this permit, for a period
of at least 3 years from the date of the sample, measurement, report, or application.
Records of monitoring information shall include but not be limited to:
(A)
(B)
(C)
(D)
(E)
(F)
the date, exact place, and time of sampling or measurements;
the individual(s) who performed the sampling or measurements;
the date(s) analyses were performed;
the individual(s) who performed the analyses;
the analytical techniques or methods used; and
the results of any such sampling, measurements, and analyses
PART VI - PERMIT RENEWAL
The Permittee shall, at least six (6) months prior to the expiration of this permit,
request an extension.
PART VII - CHANGE OF WELL STATUS
1. The Permittee shall provide written notification within 15 days of any change of status of
an injection well. Such a change would include the discontinued use of a well for
injection. If a well is taken completely out of service temporarily, the Permittee must
install a sanitary seal. If a well is not to be used for any purpose that well must be
permanently abandoned according to 15 NCAC 2C .0113, Well Construction Standards.
2. When operations have ceased at the facility and a well will no longer be used for any
purpose, the Permittee shall abandon that injection well in accordance with the procedures
specified in 15 NCAC 2C .0214, including but not limited to the following:
(A) All casing and materials may be removed prior to initiation of abandonment
procedures if the Director finds such removal will not be responsible for, or
contribute to, the contamination of an underground source of drinking
water.
(B) The entire depth of each well shall be sounded before it is sealed to insure
freedom from obstructions that may interfere with sealing operations.
(C) Each well shall be thoroughly disinfected, prior to sealing, if the Director
determines that failure to do so could lead to the contamination of an
underground source of drinking water.
(D) Each well shall be completely filled with cement grout, which shall be
introduced into the well through a pipe which extends to the bottom of the
PAGE 5 OF 7

well and is raised as the well is filled.
(E) In the case of gravel -packed wells in which the casing and screens have not
been removed, the casing shall be perforated opposite the gravel pack, at
intervals not exceeding 10 feet, and grout injected through the perforations.
(F) In those cases when, as a result of the injection operations, a subsurface
cavity has been created, each well shall be abandoned in such a manner that
will prevent the movement of fluids into or between underground sources
of drinking water and in accordance with the terms and conditions of the
permit.
(G) The Permittee shall submit a Well Abandonment Record (Form GW-30) as
specified in 15A NCAC 2C .0213(h)(1) within 30 days of completion of
abandonment.
3. The written documentation required in Part VII (1) and (2)(G) shall be submitted to:
Groundwater Section - UIC Staff
DEHNR - Division of Environmental Management
P.O. Box 29578
Raleigh, NC 27626-0578
PART VIII - SPECIAL CONDITIONS
1 The quality of the injected fluid will not exceed the given concentrations in mg\l for the
following parameters:
TDS (500.0) Cadmium (0.005)
TOC (10.0) Chromium (0.05)
Chloride (55.0) Manganese (0.05)
Fluoride (1.0) SO4 (50.0)
Total Phosphorous (0.15)
pH (6.5 - 8.5 standard units)
Total Coliform Organisms (1/100m1)
2. The temperature of the injected fluid will not exceed 35.5 C (96 F).
3 The injected fluid shall consist of depressurization well (DPW) water treated with a multi-
media anthracite/sand filter and an ultraviolet light treatment tube system. The treated
DPW water may be diluted with steam condensate as needed to comply with the
regulatory limits established in Specific Condition 2.
PERMIT NO. WI0700012
4
PAGE 6 OF 7

??. The Permittee may continue use of the current injection well water supply system until the
new anthracite/sand filter and ultraviolet light treatment system is put into operation, with
the following stipulations:
a. Condensate shall be generated, when operationally feasible, to dilute the well
water supply to comply with the quality limits established in Specific Condition
2 until the ASF/UV treatment system is in operation.
b.The permittee must submit notification to the address indicated in Specific
Condition 1 of start-up of the ASF/UV treatment system for DPW water.
PERMIT NO. WI0700012
left .
waS Tr ate.
AZtirr• I r\jeC
proC_c�re
PAGE 7 OF 7

APPROXIMATE DEPTH
20
25
45
50
DEPTH VARIES
(SEE SOIL BORINGS)
81
tu
E
E
0 m
Lai 2
La
In
4.
0
jA\\
ATTACHMENT 1
PERMIT NO. W10700012
The injection system design incorporates 7 injection wells connnected via a common header pipe.
NEAT CEMENT GROUT (6 GALLONS OF WATER PER 94 Ib.
SACK OF CEMENT WITH 4 TO 4.5 Ib. OF BENTONITE)
4 DIA. PVC GLUE -JOINT PVC WELL CASING
12' DIA. BOREHOLE
2' THICK TAMPED BENTONRE SEAL
1' THICK 20/30 SIUCA SAND
STAINLESS STEEL CENTRAUZER
SIUCA GRAVEL FILTER
4' DIA. PVC SLOTTED WELL SCREEN WITH
0.040' WIDE SLOTS
2' LONG - 4' DIA. PVC TAILPIPE
4' DIA. PVC SOCKET -TYPE END CAP
DETAIL.: - INJECTION WELL
NOT TO SCALE
TOP OF CROATAN FORMATION
TOP OF YORKTOWN FORMATION
4' DIA. PVC THREADED
CLEAN -OUT PLUG
t
?(/,'\\ • "4"-
4' DIA. PVC
CLEAN -OUT ADAPTER
TOP EL 10.5' MIN.
EXCAVATE MINIMUM TRENCH
WIDTH REQUIRED FOR PIPE
INSTALLATION
COMPACTED SAND
TAILINGS BACKFILL
4' DIAL PVC
SOCKET.TYPE TEE
18
BROOKS PRODUCTS, INC. 8-3/4' DIA.
CONCRETE TRAFFIC BOX WITH CAST
IRON COVER
ex4'xr THICK CONCRETE PAD
GRADE TO MATCH E(ISTTNG GROUND
SURFACE ELEVATION
'&5(
SAND TAILINGS FILL BETWEEN PIP
AND TRAFFIC BOX
COMPACTED GRANULAR BACKFILL
4' DIA. PVC RISER PIPE
4' DIA. PVC SOCIT-TYPE TEE
ON HEADER PIPE EL 5.0'
4-DIA. PVC PIPE
NEAT CEMENT GROUT
4' DIA PVC GLUE -JOINT
PVC WELL CASING
DETAIL - INJECTION WELL TO HEADER PIPE
AND RISER PIPE CONNECTION
PAGE 7 OF 7

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
RALEIGH, NORTH CAROLINA
PERMIT FOR THE OPERATION/USE OF A WELL OF WELL OF WELL SYSTEM FOR INJECTION
In accordance with the provisions of Article 7, Chapter 87; Article
21, Chapter 143, and other applicable Laws. Rules and Regulations,
PERMISSION IS HEREBY GRANTED TO
Texasgulf Inc.
FOR THE OPERATION AND USE OF AN INJECTION WELL/WELL SYSTEM located at
Texasgulf Inc., Aurora, North Carolina, in Beaufort County, in
accordance with the application .dated November 1, 1991, and in
conformity with the specifications and supporting data submitted, all of
which are filed with the Department of Environment, Health, and Natural
Resources and are considered a part of this Permit.
This Permit is for Operation and Use only, and does not waive any
provisions of the Water Use Act or any other applicable Laws, Rules or
Regulations. Operation and use of a well or well system shall be in
compliance with Title 15 North Carolina Administrative Code 2C, and any
other Laws, Rules and Regulations pertaining to well construction and
use.
This Permit shall be effective, unless revoked, from the date of
its issuance until December 5, 1996, and shall be subject to the
specified conditions and limitations set forth in Parts I and II hereof.
Permit issued this the 5th day of December, 1991.
J" Mulligan
Regional Supervisor
By Authority of the Environmental Management Commission.
PERMIT NO. 06-0071-WO-0005

•
PERMIT NO. p6,_nori_aitxxts
PART I
A. GENERAL CONDTITONS
1. The Permittee must comply with all conditions of this Permit and with the
standards and criteria specified in 15 NCAC 2C .0200. Any Permit
noncompliance constitutes a violation of the appropriate Act and is grounds for
enforcement action; for Permit termination, revocation and reissuance or
modification; or for denial of a Permit renewal application.
2. It shall not be a defense for a Permittee in an enforcement action that it would
have been necessary to halt or reduce the permitted activity in order to maintain
compliance with the conditions of this Permit.
3. The Permittee shall take all reasonable steps to minimize or correct any adverse
impact on the environment resulting from noncompliance with this Permit.
4. The Permittee shall give advance notice to the Director of any planned changes in
the permitted facility or activity which may result in noncompliance with the
Permit.
5. The Permittee shall report all instances of noncompliance, not reported under
condition 1. of this Part, at the time monitoring reports are submitted.
6. Where the Permittee becomes aware of a failure to submit any relevant facts in a
permit application, or of any incorrect information submitted in said application
or in any report to the Director, the relevant and correct facts or information shall
be promptly submitted by the Permittee.
7. The Permittee shall give notice to the Director as soon as possible of any planned
physical alterations or additions to the permitted facility.
8. In the event that the permitted facilities fail to perform satisfactorily, the
Permittee shall take such immediate action as may be required by the Director.
9. The injection system shall be effectively maintained and operated at all times so
that there is no contamination of groundwaters, or other actions or occurrences
which renders them unsatisfactory for normal use. In the event the facilities fail
to perform satisfactorily, including the creation of nuisance conditions, the
Permittee shall take such immediate corrective action as may be required by the
Director.
10. Department representatives shall have reasonable access for purposes of
inspection, observation and sampling associated with injection and related
facility.
11. This Permit is not transferable without prior notice to, and approval by, the
Director.
12. An application for modification, renewal or transfer of this Permit shall be filed
with the Department at least 30 days prior to the expiration date of this Pemrit.

PERMIT NO. 06-0071-W0-0005
PART I (continued)
13. Provisions shall be made for collecting samples of facility effluent, both prior to
its entrance to treatment devices and subsequent to leaving the treatment devices
but before entering the injection well.
PART II
A. SPECIFIC CONDITIONS
1. Water quality samples shall be collected from the riser
pipe of C1W-7'(fluid to be injected into last injection
well in line) and from monitoring well MWTF-1C
(groundwater from the Croatan formation) as soon as the
system becomes operational and thereafter every January,
April, July, and October for the following parameters:
TDS
TOC
Chloride
Fluoride
pH
Total Coliform Organisms
Cadmium
Chromium
Manganese
SOA
Total Phosphorous
•
The results of the sampling and analysis shall be
submitted on Form GW-59 (Compliance Monitoring Report
Form) to the Underground Injection Control Program,
Groundwater Section, N.C. Division of Environmental
Management, P.O. Box 29535, Raleigh, NC 27626-0535 and
to the Groundwater Section, Washington Regional Office,
1424 Carolina Avenue, Washington, NC 27889 every
February, May, August, and November.
2. The quality of the injected fluid will not exceed the
given concentrations in mg/1 for the following
parameters:.
TDS (475.0)
TOC (4.3) -
Chloride (55.0)
Fluoride (1.0)
Total Phosphorous (0.15)
pH (6.0 - 7.0 standard units)
Total Coliform Organisms (1/100m1)
3. The temperature of the injected fluid will not exceed
35.5 C (96 F).
Cadmium (0.005)
Chromium (0.U5)
Manganese (0.05)
SO4 (50.0)
4. The Permittee must submit notification to the addresses
indicated in Specific Condition 1 of closure of the
injection well system 30•days prior to plugging and
abandonment.

PERMIT NO. 06-0071-WO-0005
PART II (continued)
5. The Permittee must submit to the addresses indicated in
Specific Condition 1 a plugging and abandonment report
within 30 days after abandoning the injection well
system. This report will include certification that the
abandonment was conducted infull compliance with the
injection well abandonment procedures outlined in 15A
NCAC 2C .0214 (Well Construction Standards Applicable to
Injection Wells).

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT. HEALTH, AND NATURAL RESOURCES
RALEIGH, NORTH CAROLINA
PERMIT FOR THE OPERATION/USE OF A WELL OF WELL OF WELL SYSTEM FOR INJECTION
In accordance with the provisions of Article 7, Chapter 87; Article
21, Chapter 143, and other applicable Laws, Rules and Regulations,
PERMISSION IS HEREBY GRANTED TO
Texasgulf Inc.
FOR THE OPERATION AND USE OF AN INJECTION WELL(WELL SYSTEM located at
Texasgulf Inc., in Beaufort County, in accordance with the application
dated May 1, 1991, and in conformity with the specifications and
supporting data submitted, all of which are filed with the Department of
Environment, Health, and Natural Resources and are considered a part of
this Permit. .
This Permit is for Operation and Use only, and does not waive any
provisions of the Water Use Act or any other applicable Laws, Rules or
Regulations. Operation and use of a well or well system shall be in
compliance with Title 15 North Carolina Administrative Code 2C, and. any
other Laws, Rules and Regulations pertaining to well construction and
use.
This Permit shall he effective. unless revoked, from the date of
its issuance until May 8. 1996, and shall be subject to the specified
conditions and limitations set forth in Parts I and II hereof.
Permit issued this the Sth day of May, 1991..
Jim Mulligan
Regional Supervisor
By Authority of the Environmental Management Commission.
PERMIT NO. 06-0071-WI-0238

PERMIT NO. 06-0071-WI-0238
PART I
A. GENERAL CONDITIONS
1. The Permittee must comply with all conditions of this Permit and with the
standards and criteria specified in 15 NCAC 2C .0200. Any Permit
noncompliance constitutes a violation of the appropriate Act and is grounds for
enforcement action; for Permit termination, revocation and reissuance or
modification; or for denial of a Permit renewal application.
2. It shall not be a defense for a Permittee in an enforcement action that it would
have been necessary to halt or reduce the permitted activity inorder to maintain
compliance with the conditions of this Permit.
3. The Permittee shall take all reasonable steps to minimize or correct any adverse
impact on the environment resulting from noncompliance with this Permit.
4. The Permittee shall give advance notice to the Director of any planned changes in
the permitted facility or activity which may result in noncompliance with the
Permit
5. The Permittee shall report all instances of noncompliance, not reported under
condition 1. ofthis Part, at the time monitoringreports are submitted.
6. Where the Permittee becomes aware of a failure to submit any relevant facts in a
permit application, or of any incorrect information submitted in said application
or in any report to the Director, the relevant and correct facts or information shall
be promptly submitted by the Permittee.
7. The Permittee shall give notice to the Director as soon as possible of any planned
physical alterations or additions to the permitted facility.
8. In the event that the permitted facilities fail to perform satisfactorily, the
Permittee shall take such immediate action as may be required by the Director.
9. The injection system shall be effectively maintained and operated at all times so
that there is no contamination of groundwaters, or other actions or occurrences
which renders them unsatisfactory for normal use. In the event the facilities fail
to perform satisfactorily, including the creation of nuisance conditions, the
Permittee shall take such immediate corrective action as may be required by the
Director.
10. Department representatives shall have reasonable access for purposes of
inspection, observation and sampling associated with injection and related
facility.
11. This Permit is not transferable without prior notice to, and approval by, the
Director.
12. An application for modification,- renewal or transfer of this Permit shall be filed
with the Department at least 30 days prior to the expiration date of this Permit.

PERMIT NO. 06-0071-WI-0238
PART I (continued)
13. Provisions shall be made for collecting samples of facility effluent; both prior to
its entrance to treatment devices and subsequent to leaving the treatment devices
but before entering the injection well.
PART II
A. SPECIFIC CONDITIONS