WQ0000889_Final Permit_19901026

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 George T. Everett_ Ph.D.
William W. Cobey, Jr., Secretary Director
October 26, 1990
Mr. W. A. Schimming,
Manager, Environmental Affairs
Texasgulf, Incorporated
Post Office Box 48
Aurora, North Carolina 27806
Subject: Permit No. WQ0000889
Texasgulf, Incorporated -Amendment
Domestic Wastewater Treatment and
Collection Facilities
Beaufort County
Dear Mr. Schimming:
In accordance with your amendment request received August 21, 1990, we are forwarding
herewith Permit No. WQ0000889, dated October 26, 1990, to Texasgulf, incorporated amending
Permit No. WQ0000889 issued March 15, 1990, to indicate the following:
Three (3) simplex pump stations have been added to the permit description as
requested by the August 21, 1990 permit amendment request.
2. Four (4) sludge holding tanks, 6,200 gallons each, have been added to the permit
description as requested by the August 21, 1990 permit amendment request.
This permit shall be effective from the date of issuance until June 30, 1994, and shall be
subject to the conditions and limitations as specified therein. Please pay particular attention to the
monitoring requirements in this permit. Failure to establish an adequate system for collecting and
maintaining the required operational information will result in future compliance problems.
Issuance of this permit hereby voids Permit No. WQ0000889 issued March 15, 1990.
Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

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.
One set of approved plans and specifications is being forwarded to you. If you need
additional information concerning this matter, please contac t 919/ 733-5083.
Sincerely,
George T. Everett
cc: Beaufort County Health Department
Washington Regional Office
Groundwater Section
Training and Certification Unit
Henry Von Oesen & Associates

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
SPRAY IRRIGATION SYSTEM 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
Texasgulf, Incorporated
Beaufort County
K9 : I.I
construction and operation of thrity-eight (38) simplex pump stations each with an 18 gpd
submersible grinder pump and high water alarms, approximately 7,110 linear feet of 3-inch force
main and approximately 354 linear feet of 2-inch force main, a 125 gpm pump station with dual
submersible pumps and high water alarms, approximately 3,171 linear feet of 4-inch force main, a
30,000 GPM dual train "anoxic/aerobic" wastewater treatment facility which will consist of a flow
monitoring manhole, a 14,960 gallon equalization tank with dual 21 gpm submersible grinder
pumps, a flow splitter box, dual 3,750 gallon anoxic tanks, dual 11,250 gallon aerobic tanks, two
(2) 145 cfm blowers, dual 6,200 gallon clarifiers, a 5,000 gallon aerobic digester, four (4) 6,200
gallon sludge holding tanks, dual five (5) foot diameter filters equipped with a 5,000 gallon dosing
tank with dual submersible 21 gpm pumps, a 15 cfm blower and a 5,000 gallon backwash holding
tank with dual submersible 210 gpm pumps, dual disinfection which will include a ultraviolet
disinfection system and a 632 gallon chlorine contact chamber with tablet chlorination, a 3,441
gallon effluent dosing tank with three (3) 42 gpm suction pumps, approximately 459 Iinear of
2-inch force main, three (3) effluent meters, three (3) 80 feet by 80 feet rapid infiltration fields and
all associated valves, pipes and appurtenances to serve Texasgulf, Incorporated with no discharge
of wastes to the surface waters, pursuant to the permit amendment request received August 21,
1990 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 June 30, 1994, and shall be
subject to the following specified conditions and limitations:
1. Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted
facility has been installed in accordance with this permit, the approved plans and
specifications. Mail the Certification to the Permits and Engineering Unit, P.O. Box
27687, Raleigh, NC 27611.

2. The Washington Regional Office, phone no. 919/ 946-6481, shall be notified at least
forty-eight (48) hours in advance of operation of the installed facilities so that an
in -place inspection can be made. Such notification to the regional supervisor shall be
made during the normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through
Friday, excluding State Holidays.
3. The irrigation facilities shall be effectively maintained and operated at all times so
that there is no discharge to the surface waters, nor any contamination of ground waters
which will render them unsatisfactory for normal use. In the event that the facilities fail
to perform satisfactorily, including the creation of nuisance conditions or failure of the
irrigation area to adequately absorb the wastewater, the Permittee shall take such
immediate corrective action to correct the problem, including actions as may be required
by the Division of Environmental Management.
4. 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.
5. The sludge generated from these treatment facilities must be disposal Qf in accordance
with General Statute 143-215.1 and in a manner approved by the North Carolina
Division of Environmental Management.
6. Diversion or bypassing of the untreated wastewater from the treatment facilities is
prohibited.
1, The facilities shall be properly maintained and operated at all times.
2. 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.
3. Irrigation shall not be performed during inclement weather or when the ground is in a
condition that will cause runoff.
4. Adequate measures shall be taken to prevent wastewater runoff from the irrigation
fields.
5. The facilities shall be effectively maintained and operated as a non -discharge system to
prevent the discharge of any wastewater resulting from the operation of this facility.
6. The application rate shall not exceed 8 inches per day per rapid infiltration field.
7. No type of wastewater other than that from Texasgulf Incorporated's domestic
wastewater treatment facilities shall be sprayed onto the irrigation area.
8. No traffic or equipment shall be allowed on the disposal area except while installation
occurs or while normal maintenance is being performed.
9. Public access to the land application sites shall be controlled during active site use. Such
controls may include the posting of signs showing the activities being conducted at each
site.
0)

III. MONITORING AND REPORTING REQUIREMENTS
Any monitoring (including groundwater, surface water, soil or plant tissue
analyses) 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.
? . Adequate records shall be maintained by the Permittee tracking the amount of wastewater
disposed. These records shall include, but are not necessarily limited to the following
information:
a) date of irrigation,
b) volume of wastewater irrigated,
c) field irrigated,
d) length of time field is irrigated,
e) continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings
for each field,
f) weather conditions, and
g) maintenance of cover crops.
The wastewater treatment plant shall maintain an effluent quality of:
BOD 10 mg/l
TSS 10 mg/1
In the event the existing wastewater treatment plant fails to maintain the effluent quality
assigned, a complete application shall be submitted to the Division of Environmental
Management within 30 days for wastewater treatment facilities that will maintain the
assigned effluent duality limits.
4. The effluent from the subject facilities shall be monitored by the Permittee at the point
prior to irrigation twice per month (if irrigation occurs during the calendar month) for the
following parameters:
Parameter
BOD5
TSS
Fecal Coliform
pH
NH3 as N - (monthly)
Flow - (daily - influent or effluent)
*Chlorine Residual - (daily - effluent)
"Intensity of UV irradiation (UV
centimeter (uW-Sec/cm2)
dose) - Microwatt - seconds per square
* Monitoring required only when chlorination system in use
** Monitoring required only when UV system in use
All monitoring shall be submitted to the Washington Regional Office no later than 30
days following the end of the monitoring month.

5. Three copies of all operation and disposal records (as specified in condition 111 2) and
all effluent monitoring data (as specified in condition 1113 and 1114) and any other data
as may be required shall be submitted on or before the last day of the following month to
the following address:
NC Division of Environmental Management
Water Quality Section
Facility Assessment Unit
PO Box 27687
Raleigh, NC 27611-7687
6. Noncompliance Notification:
The Permittee shall report by telephone to the Washington Regional Office,
telephone no. 919/946-6481, 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:
Any occurrence at the wastewater treatment facility 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 sludge digester, 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 wastewater treatment such as mechanical or electrical failures
of pumps, aerators, compressors, etc.
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.
IV. GROUNDWAIER RE IREMF T
1. Prior to beginning waste disposal operations, two (2) monitor wells, one (1)
upgradient and one (1) downgradient, shall be installed to monitor groundwater
quality. The well(s) shall be constructed such that the water level in the well is never
above or below the screened (open) portion of the well at any time during the year.
However, the exact location and construction details for these wells shall be
approved by the Washington Regional Office, from which a well construction
permit must be obtained.
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2. The existing monitor wells No. 1 and No. 2 and the two (2) new monitoring wells
shall be sampled initially after construction (and prior to waste disposal operations)
and thereafter every March, July, and November for the following parameters:
NO3 (10.0) Ammonia Nitrogen
TDS (500.0) TOC
pH (6.5-8.5 standard units) Chloride (250.0)
Total Coliforms (I A 00m1) Water level
Volatile Organic Compounds - In November Only (By method 1 or 2 below)
Method 1: Method 6230D (Capillary - Column), "Standard Methods For The
Examination of Water and Wastewater", 17th ed., 1989
Method 2: Methal 502.2 "Method For The Determination Of Organic Compounds
In Drinking Water", U.S. EPA - 600/4-88/039
The measurement of water level must be made prior to sampling for the remaining
parameters.
The measuring points (top of well casing) of all new monitoring wells shall be
surveyed relative to mean sea level (M-S.L.). The depth of water in each well shall
be measured from the surveyed point on the top of the casing. The water level
elevations shall then be determined relative to M.S.L..
The numbers in parentheses represent the maximum allowable concentrations in
groundwater for the various analytical parameters, as specified in 15 NCAC 2L
[Groundwater Classifications and Standards]. Unless otherwise noted, the
concentrations are given in parts per million.
If TOC concentrations greater than 10 mg/1 are detected in any downgradient
monitoring well, additional sampling and analysis must be conducted to identify the
individual constituents comprising this TOC concentration. If the TOC concentration
as measured in the background monitor well exceeds 10 mg/l, this concentration will
be taken to represent the naturally occurring TOC concentration. Any exceedances
of this naturally occurring TOC concentration in the downgradient wells shall be
subject to the additional sampling and analysis as described above.
If any volatile organic compounds are detected by method 6230D, or the equivalent
method 502.2, then EPA methods 604 and 611 must also be run to detect other
organic compounds which may be present. The results of all analyses specified in
the monitoring requirements, including 604 and 611 if required, must be submitted
simultaneously.
The results of the sampling and analysis shall be sent to the N.C. Division of
Environmental Management on Form GW -59 (Compliance Monitoring Report
Form) every April, August, and December.
3. The Compliance Boundaa for the disposal system is specified by regulations in 15
NCAC 2L, Classifications and Water Quality Standards applicable to the
groundwater of North Carolina. An exceedance of Groundwater Quality Standards
beyond the Compliance Boundary is subject to penalty provisions applicable under
General Statute 143-215.6(1)a. The sale of property, by the Permittee, which is
within or contiguous to the disposal system site may alter location of the Compliance
Boundary.
For facilities permitted on or after December 30, 1983, the Compliance Boundary is
established at the lesser of 250 feet from the perimeter of the waste disposal area, or
50 feet within the property boundary.
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If the title to any property which may affect the location of the Compliance Boundary
is changed, the permittee shall notify the Division Director within 14 days. The
Director shall then establish a modified Compliance Boundary which will be done as
a modification to the Permit.
The REVIEW 30,1MARY for the disposal system is specified by regulations in 15
NCAC 2L, Groundwater Classifications and Standards. A REVFEW_BOUNDARY
is established around disposal systems midway between the Compliance Boundary
and the perimeter of the waste disposal area. When the concentration of any
substance equals or exceeds the maximum allowable concentration of that substance
at the REVIEW BOUNDARY, as determined by monitoring, the permittee shall
either (i) demonstrate, through predictive calculations or modeling, that natural site
conditions, facility design and operational controls will prevent a violation of
standards at the Compliance Boundary; or, (ii) submit a plan for the alteration of
existing site conditions, facility design or operational controls that will prevent a
violation of standards at the Compliance Boundary, and implement that plan upon its
approval by the Director.
4. Any additional groundwater quality monitoring, as deemed necessary by the
Division, shall be provided.
V. INSPECTIONS
1. Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to
insure proper operation of the subject facilities.
2. The Permittee or his designee shall inspect the wastewater treatment and disposal
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.
3. 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.
VI. GENERAL CONDITIONS
1. 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 pemnit is effective only with respect to the nature and volume of wastes described in
the application and other supporting data.

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 this request will be considered on its merits and may or
may not be approved.
4. 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.
5. 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.
6. Prior to any transfer of this land, a notice shall be given to the new owner that gives full
details of the materials applied at this site.
7. A set of approved plans and specifications for the subject project must be retained by the
Permittee for the life of the project.
8. The annual administering and compliance fee must be paid by the Permittee within thirty
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).
9. 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.
10. Construction of the sewers shall be so scheduled so as not to interrupt service by the
existing utilities nor result in an overflow of bypass discharge of wastewater to the
surface waters of the State.
11. Within four (4) months after the startup of the subject facilities, the Permittee shall
submit to the Division of Environmental management plans and specifications for the
disposal of the sludge generated from the treatment facilities.
13. Issuance of this permit hereby voids Permit WQ0000889 issued March 15, 1990.
Permit issued this the 26th day of October, 1990
TH CAROLINA
George T. Ev4tt, Di
Division of Envt -am
By Authority of the l
AL MANAGEMENT COMMISSION
Management Commission
7

Permit No. WQ0000889
October 26, 1990
Enzineer's Certification
I, , as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full tithe) the construction of the
project, , for the
Project Name Location
Permittee hereby state that, to the best of my abilities, due care and diligence was used in the
observation of the construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
Signature
Date
Registration No