WQ0000601_Final Permit_20230427

Mc STATE o,
ROY COOPER _ n
Governor C
ELIZABETH S.BISER
Secretary
RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
April 27,2023
SAMUEL M.ROSS—DIRECTOR ENVIRONMENTAL FIELD SERVICES
CSX TRANSPORTATION,INC.
500 WATER STREET—J275
JACKSONVILLE,FLORIDA 32202
Subject: Permit No. WQ0000601
CSX Transportation—Hamlet
WWTF
Other Non-Discharge
Wastewater System
Richmond County
Dear Mr. Ross:
In accordance with your permit renewal request received on January 31, 2023,we are forwarding
herewith Permit No. WQ0000601 dated April 27, 2023, to CSX Transportation, Inc. for the continued
operation of the subject wastewater treatment and disposal facilities. Please note that this renewed permit
shall become effective on August 1,2023 (i.e.,the day after the expiration date of the existing permit).
This permit shall be effective from August 1, 2023 through August 31, 2030, shall replace Permit
No. WQ0000601 issued July 3, 2018, and shall be subject to the conditions and limitations therein. The
Permittee shall submit a renewal application no later than March 4,2030.
Please pay attention to the monitoring requirements listed Attachments A, 13, and C for they may
differ from the previous permit issuance. Failure to establish an adequate system for collecting and
maintaining the required operational information shall result in future compliance problems.
The Division has removed the following permit conditions since the last permit issuance dated
July 3,2018:
➢ Old Condition 1.1 —The Division has removed this condition because it has been met.
➢ Old Condition VI.2 — The Division has removed this condition because permits are not
voidable.
The following permit conditions are new since the last permit issuance dated July 3,2018:
➢ Condition 111.4 — This condition requires the Permittee test and calibrate disposal equipment
once per permit cycle.
➢ Condition 111.13 —This condition requires the Permittee test and calibrate metering equipment
annually.
D E Q�� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1617 Mail Service Center I Raleigh,North Carolina 27699-1617
NORTH CAROLINA _
�•�of �•m•^�a••\ r 919.707.9000

Mr. Samuel M. Ross
April 27,2023
Page 2 of 2
If any parts, requirements, or limitations contained in this permit are unacceptable, the Permittee
has the right to request an adjudicatory hearing upon written request within 30 days following receipt of
this permit. This request shall be in the form of a written petition,conforming to Chapter 150B of the North
Carolina General Statutes, and filed with the Office of Administrative Hearings at 6714 Mail Service
Center, Raleigh,NC 27699-6714. Otherwise,this permit shall be final and binding.
If you need additional information concerning this permit, please contact Leah Parente at (919)
707-3656 or leah.parente(&ncdenr.gov.
Sincerely,
DocuSigned by:
Na{{AJA it t I-t o"W j
D1043082680C483...
Richard E. Rogers,Jr.,Director
Division of Water Resources
cc: Richmond County Health Department(Electronic Copy)
Fayetteville Regional Office,Water Quality Regional Operations Section(Electronic Copy)
Laserfiche File(Electronic Copy)
Digital Permit Archive(Electronic Copy)

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENTAL QUALITY
RALEIGH
OTHER NON-DISCHARGE WASTEWATER 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
CSX Transportation, Inc.
Richmond County
FOR THE
continued operation of a 1,000,000 gallon per day (GPD) wastewater treatment and disposal facility
consisting of:
a manual bar screen; equalization basin; grit chamber, oil/water separator with skimmers; floatation
clarifiers; Dissolved Air Floatation (DAF) unit; sludge holding basin; skimmer collection tank; chemical
feed units; five evaporation/infiltration basins(i.e. Basins 1-5); a lined overflow lagoon approximately one
acre in size (i.e., Lagoon 6); an unlined emergency overflow basin approximately 1.5 acres in size (i.e.,
Lagoon 7); and all associated piping,valves, controls,and appurtenances
to serve the CSX Transportation—Hamlet WWTF,with no discharge of wastes to surface waters,pursuant
to the application received January 31, 2023, and in conformity with the Division-approved plans and
specifications considered a part of this permit.
This permit shall be effective from August 1, 2023 through August 31, 2030, shall replace Permit No.
WQ0000601 issued July 3,2018, and shall be subject to the following conditions and limitations:
I. SCHEDULES
1. The Permittee shall request renewal of this permit on Division-approved forms no later than March 4,
2030. [15A NCAC 02T .0105(b), 02T .0109]
II. PERFORMANCE STANDARDS
1. The Permittee shall maintain and operate the subject non-discharge facilities so there is no discharge to
surface waters, nor any contravention of groundwater or surface water standards. In the event the
facilities fail to perform satisfactorily, including the creation of nuisance conditions due to improper
operation and maintenance,or failure of the disposal areas to assimilate the effluent,the Permittee shall
take immediate corrective actions, including Division required actions, such as the construction of
additional or replacement wastewater treatment or disposal facilities. [15A NCAC 02T.0108(b)(1)(A)]
2. This permit shall not relieve the Permittee of their responsibility for damages to groundwater or surface
water resulting from the operation of this facility. [15A NCAC 02T .0108(b)(1)(A)]
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3. Groundwater monitoring wells shall be constructed in accordance with 15A NCAC 02C .0108
(Standards of Construction for Wells Other than Water Supply), and any other jurisdictional laws and
regulations pertaining to well construction. [15A NCAC 02C .0108]
4. Effluent quality shall not exceed the limitations specified in Attachment A. [15A NCAC 02T
.0108(b)(1)(A)]
5. Application rates, whether hydraulic, nutrient, or other pollutant, shall not exceed those specified in
Attachment B. [15A NCAC 02T .0108(b)(1)(A)]
6. Wastewater disposal sites permitted prior to December 30, 1983 have a compliance boundary that is
either 500 feet from the wastewater disposal area, or at the property boundary,whichever is closest to
the wastewater disposal area. Any exceedance of groundwater standards at or beyond the compliance
boundary shall require corrective action. Division-approved relocation of the compliance boundary
shall be noted in Attachment B. Multiple contiguous properties under common ownership and
permitted for use as a disposal system shall be treated as a single property with regard to determination
of a compliance boundary. [15A NCAC 02L.0106(e),02L .0107(a),02T .0105(h), G.S. 143-215.1(i),
G.S. 143-215.1(k)]
7. The review boundary is midway between the compliance boundary and the wastewater disposal area.
Any exceedance of groundwater standards at or beyond the review boundary shall require preventative
action. [15A NCAC 02L .0106(d)(1), 02L .0108]
8. The Permittee shall apply for a permit modification to establish a new compliance boundary prior to
any sale or transfer of property affecting a compliance boundary(i.e.,parcel subdivision). [15A NCAC
02L .0107(c)]
9. No wells, excluding Division-approved monitoring wells, shall be constructed within the compliance
boundary except as provided for in 15A NCAC 02L .0107(g). [15A NCAC 02L .0107]
10. Except as provided for in 15A NCAC 02L .0107(g), the Permittee shall ensure any landowner who is
not the Permittee and owns land within the compliance boundary shall execute and file with the
Richmond County Register of Deeds an easement running with the land containing the following items:
a. A notice of the permit and number or other description as allowed in 15A NCAC 02L .0107(f)(1);
b. Prohibits construction and operation of water supply wells within the compliance boundary; and
c. Reserves the right of the Permittee or the State to enter the property within the compliance boundary
for purposes related to the permit.
The Director may terminate the easement when its purpose has been fulfilled or is no longer needed.
[15A NCAC 02L .0107(f)]
11. The facilities permitted herein have no setbacks. The original permit (Permit No. 4197) pre-dates
administrative code 15A NCAC 02H .02190), which was effective October 1, 1987. Since no
modifications or expansions have been made to the originally permitted facility, the facility is still
covered under the 15A NCAC 02H .0200 rules effective February 1, 1976, which contain no setback
requirements. [15A NCAC 02H .0200]
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III. OPERATION AND MAINTENANCE REQUIREMENTS
1. The Permittee shall operate and maintain the subject facilities as a non-discharge system. [15A NCAC
02T .0800]
2. The Permittee shall maintain an Operation and Maintenance Plan, which shall include operational
functions, maintenance schedules, safety measures, and a spill response plan. [15A NCAC 02T
.0707(a), 02T .0807]
3. Upon the Water Pollution Control System Operators Certification Commission's (WPCSOCC)
classification of the subject non-discharge facilities,the Permittee shall designate and employ a certified
operator in responsible charge(ORC),and one or more certified operators as back-up ORCs. The ORC
or their back-up shall operate and visit the facilities as required by the WPCSOCC. [15A NCAC 02T
.0117]
4. Disposal equipment shall be tested and calibrated once per permit cycle. [15A NCAC 02T .0707(d),
02T .0807]
5. Only treated effluent from the CSX Transportation — Hamlet WWTF shall be disposed on the sites
listed in Attachment B. [15A NCAC 02T .0801]
6. The Permittee shall not allow vehicles or heavy machinery on the disposal area, except during
equipment installation or maintenance activities. [15A NCAC 02T .0707(e), 02T .0807]
7. The Permittee shall prohibit public access to the wastewater treatment, storage, and disposal facilities.
[15A NCAC 02T .0505(q), 02T .0805]
8. The Permittee shall dispose or utilize generated residuals in a Division-approved manner. [15A NCAC
02T .0708, 02T .0808, 02T .1100].
9. The Permittee shall not divert or bypass untreated or partially treated wastewater from the subject
facilities. [15A NCAC 02T .05050), 02T .0805]
10. Freeboard in Basins 1-5, Lagoon 6, and Lagoon 7 shall not be less than one foot at any time. [15A
NCAC 02T .0505(d), 02T .0805]
11. Gauges to monitor waste levels in Basins 1-5,Lagoon 6,and Lagoon 7 shall be provided. These gauges
shall have readily visible permanent markings, at inch or tenth of a foot increments, indicating the
following elevations: maximum liquid level at the top of the temporary liquid storage volume;
minimum liquid level at the bottom of the temporary liquid storage volume; and the lowest point on
top of the dam. [15A NCAC 02T .0707(f), 02T .0807]
12. A protective vegetative cover shall be established and maintained on all berms, pipe runs, erosion
control areas, surface water diversions, and earthen embankments (i.e., outside toe of embankment to
maximum allowable temporary storage elevation on the inside of the embankment). Trees,shrubs,and
other woody vegetation shall not be allowed to grow on the earthen dikes or embankments. Earthen
embankments shall be kept mowed or otherwise controlled and accessible. [15A NCAC 02T .0707(g),
02T .0807]
13. Metering equipment shall be tested and calibrated annually. [15A NCAC 02T .0707(d), 02T .0807]
14. The disposal areas shall be periodically cleaned to remove deposited materials that may impede the
infiltration process. Cleaning records shall be maintained at the facility for five years and shall be made
available to the Division upon request. The Fayetteville Regional Office,telephone number(910)433-
3300, shall be notified prior to each cleaning. [15A NCAC 02T .0707(h), 02T .0807]
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IV. MONITORING AND REPORTING REQUIREMENTS
1. The Permittee shall conduct and report any Division required monitoring necessary to evaluate this
facility's impact on groundwater and surface water. [15A NCAC 02T .0108(c)]
2. A Division-certified laboratory shall conduct all analyses for the required effluent, groundwater, and
surface water parameters. [15A NCAC 02H .0800]
3. Flow through the treatment facility shall be continuously monitored, and daily flow values shall be
reported on Form NDMR. Facilities with a permitted flow less than 10,000 GPD may estimate their
flow from water usage records provided the water source is metered. [15A NCAC 02T .0105(k), 02T
.0108(c)]
4. The Permittee shall monitor the treated effluent at the frequencies and locations for the parameters
specified in Attachment A. [15A NCAC 02T .0108(c)]
5. The Permittee shall maintain records tracking the amount of effluent disposed. These records shall
include the following information for each disposal site listed in Attachment B:
a. Date of disposal;
b. Volume of effluent disposed;
c. Site applied;
d. Length of disposal time;
e. Loading rates to each disposal site listed in Attachment B; and
f. Weather conditions.
[15A NCAC 02T .0108(c)]
6. Freeboard(i.e.,waste level to the lowest embankment elevation) in Basins 1-5,Lagoon 6, and Lagoon
7 shall be measured to the nearest inch or tenth of a foot and recorded weekly. Weekly freeboard
records shall be maintained for five years and shall be made available to the Division upon request.
[15A NCAC 02T .0108(c)]
7. Three copies of all monitoring data (as specified in Conditions IV.3. and IVA.) on Form NDMR for
each PPI and three copies of all operation and disposal records (as specified in Conditions IV.S. and
IV.6.) on Form NDAR-2 for every site in Attachment B shall be submitted on or before the last day of
the following month. If no activities occurred during the monitoring month,monitoring reports are still
required documenting the absence of the activity. All information shall be submitted to the following
address:
Division of Water Resources
Information Processing Unit
1617 Mail Service Center
Raleigh,North Carolina 27699-1617
[15A NCAC 02T .0105(1)]
8. The Permittee shall maintain a record of all residuals removed from this facility. This record shall be
maintained for five years and shall be made available to the Division upon request. This record shall
include:
a. Name of the residuals hauler;
b. Non-Discharge permit number authorizing the residuals disposal,or a letter from a municipality
agreeing to accept the residuals;
c. Date the residuals were hauled; and
d. Volume of residuals removed.
[15A NCAC 02T .0708(b), 02T .08081
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9. A maintenance log shall be kept at this facility. This log shall be maintained for five years and shall be
made available to the Division upon request. This log shall include:
a. Date of flow measurement device calibration;
b. Date of disposal equipment calibration;
c. Visual observations of the plant and plant site; and
d. Record of preventative maintenance(e.g.,changing of equipment,adjustments,testing,inspections
and cleanings, etc.).
[15A NCAC 02T .0707(h), 02T .0807]
10. Monitoring wells MW-1, MW-2, MW-3, MW-4, MW-5, MW-7, and MW-8, shall be sampled at the
frequencies and for the parameters specified in Attachment C. All mapping,well construction forms,
well abandonment forms and monitoring data shall refer to the permit number and the well
nomenclature as provided in Attachment C and Figure 1. [15A NCAC 02T .0105(m)]
11. Two copies of the monitoring well sampling and analysis results shall be submitted on a Compliance
Monitoring Form (GW-59), along with attached copies of laboratory analyses, on or before the last
working day of the month following the sampling month. The Compliance Monitoring Form(GW-59)
shall include this permit number, the appropriate well identification number, and one GW-59a
certification form shall be submitted with each set of sampling results. All information shall be
submitted to the following address:
Division of Water Resources
Information Processing Unit
1617 Mail Service Center
Raleigh,North Carolina 27699-1617
[15A NCAC 02T .0105(m)]
12. Noncompliance Notification:
The Permittee shall report to the Fayetteville Regional Office, telephone number [phone],
within 24 hours of first knowledge of the following:
a. Treatment of wastes abnormal in quantity or characteristic, including the known passage of a
hazardous substance.
b. Any process unit failure (e.g., mechanical, electrical, etc.) rendering the facility incapable of
adequate wastewater treatment.
c. Any facility failure resulting in a discharge to surface waters.
d. Any time self-monitoring indicates the facility has gone out of compliance with its permit
limitations.
e. Effluent breakout from the disposal sites.
Emergencies requiring reporting outside normal business hours shall call the Division's Emergency
Response personnel at telephone number [phone], [phone], or [phone]. All
noncompliance notifications shall file a written report to the Fayetteville Regional Office within five
days of first knowledge of the occurrence,and this report shall outline the actions proposed or taken to
ensure the problem does not recur. [15A NCAC 02T .0108(b)(1)(A)]
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V. INSPECTIONS
1. The Permittee shall perform inspections and maintenance to ensure proper operation of the wastewater
treatment and disposal facilities. [15A NCAC 02T .0707(i), 02T .0807]
2. The Permittee shall inspect the wastewater treatment and disposal facilities to prevent malfunctions,
facility deterioration, and operator errors that may result in discharges of wastes to the environment,
threats to human health, or public nuisances. The Permittee shall maintain an inspection log that
includes the date and time of inspection, observations made, and maintenance, repairs, or corrective
actions taken. The Permittee shall maintain this inspection log for a period of five years from the date
of the inspection, and this log shall be made available to the Division upon request. [15A NCAC 02T
.0707(h), 02T .0707(i), 02T .0807]
3. Division authorized representatives may, upon presentation of credentials, enter and inspect any
property,premises,or place related to the wastewater treatment and disposal facilities permitted herein
at any reasonable time for determining compliance with this permit. Division authorized
representatives may inspect or copy records maintained under the terms and conditions of this permit,
and may collect groundwater, surface water, or leachate samples. [G.S. 143-215.3(a)(2)]
VI. GENERAL CONDITIONS
1. Failure to comply with the conditions and limitations contained herein may subject the Permittee to a
Division enforcement action. [G.S. 143-215.6A, 143-215.613, 143-215.6C]
2. This permit is effective only with respect to the nature and volume of wastes described in the permit
application, and Division-approved plans and specifications. [G.S. 143-215.l(d)]
3. Unless specifically requested and approved in this permit,there are no variances to administrative codes
or general statutes governing the construction or operation of the facilities permitted herein. [15A
NCAC 02T .0105(n)]
4. The issuance of this permit does not exempt the Permittee from complying with all statutes, rules,
regulations, or ordinances that other jurisdictional government agencies (e.g., local, state, and federal)
may require. [15A NCAC 02T .0105(c)(6)]
5. If the permitted facilities change ownership, or the Permittee changes their name, the Permittee shall
submit a permit modification request on Division-approved forms. The Permittee shall comply with
all terms and conditions of this permit until the permit is transferred to the successor-owner. [G.S. 143-
215.1(d3)]
6. The Permittee shall retain a set of Division-approved plans and specifications for the life of the facilities
permitted herein. [15A NCAC 02T .0105(o)]
7. The Permittee shall maintain this permit until the proper closure of all facilities permitted herein, or
until the facilities permitted herein are permitted by another authority. [15A NCAC 02T .01050)]
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8. This permit is subject to revocation or modification upon 60-day notice from the Division Director, in
whole or part for:
a. violation of any terms or conditions of this permit or Administrative Code Title 15A Subchapter
02T;
b. obtaining a permit by misrepresentation or failure to disclose all relevant facts;
c. the Permittee's refusal to allow authorized Department employees upon presentation of credentials:
i. to enter the Permittee's premises where a system is located or where any records are required
to be kept;
ii. to have access to any permit required documents and records;
iii. to inspect any monitoring equipment or method as required in this permit; or
iv. to sample any pollutants;
d. the Permittee's failure to pay the annual fee for administering and compliance monitoring; or
e. a Division determination that the conditions of this permit are in conflict with North Carolina
Administrative Code or General Statutes.
[15A NCAC 02T .0110]
9. Unless the Division Director grants a variance, expansion of the facilities permitted herein shall not
occur if any of the following apply:
a. The Permittee or any parent, subsidiary, or other affiliate of the Permittee has been convicted of
environmental crimes under G.S. 143-215.613, or under Federal law that would otherwise be
prosecuted under G.S. 143-215.613, and all appeals of this conviction have been abandoned or
exhausted.
b. The Permittee or any parent,subsidiary,or other affiliate of the Permittee has previously abandoned
a wastewater treatment facility without properly closing the facility.
c. The Permittee or any parent, subsidiary, or other affiliate of the Permittee has not paid a civil
penalty,and all appeals of this penalty have been abandoned or exhausted.
d. The Permittee or any parent,subsidiary,or other affiliate of the Permittee is currently not compliant
with any compliance schedule in a permit, settlement agreement, or order.
e. The Permittee or any parent, subsidiary, or other affiliate of the Permittee has not paid an annual
fee.
[15A NCAC 02T .0120(b), 02T .0120(d)]
10. This permit shall not be renewed if the Permittee or any affiliation has not paid the required annual fee.
[I5A NCAC 02T .0120(c)]
Permit issued this the 27'day of April 2023
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
DocuSigned by:
NA,au ALL '- .aMAO l
D104308268OC483...
Richard E. Rogers,Jr.,Director
Division of Water Resources
By Authority of the Environmental Management Commission
Permit Number WQ0000601
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ATTACHMENT A—LIMITATIONS AND MONITORING REQUIREMENTS Permit Number: WQ0000601 Version: 5.0
PPI 001—WWTF Effluent
EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS
PCs Parameter Description Units of Monthly Monthly Daily Minimum Daily Maximum Measurement Sample
Code Measure Average Geometric Mean Frequency Type
01002 Arsenic Total(as As) mg/L 3 x Year' Grab
01007 Barium,Total(as Ba) mg/L 3 x Year' Grab
01027 Cadmium,Total(as Cd) mg/L 3 x Year' Grab
00680 Carbon,Total Organic(TOC) mg/L 3 x Year' Grab
01034 Chromium,Total(as Cr) mg/L 3 x Year I Grab
50050 Flow,in Conduit or thm Treatment Plant GPD 1,000,000 Continuous Recorder
01051 Lead,Total(as Ph) mg/L 3 x Year Grab
00620 Nitrogen,Nitrate Total(as N) mg/L 3 x Year Grab
00400 pH su 3 x Year Grab
70300 Solids,Total Dissolved—180°C mg/L 3 x Year Grab
1. 3 x Year monitoring shall be conducted in March,July,and November.
WQ0000601 Version 5.0 Attachment A Pagel of 1

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ATTACHMENT B—APPROVED LAND APPLICATION SITES AND LIMITATIONS Permit Number: WQ0000601 Version: 5.0
CSX Transportation,Inc.—CSX Transportation—Hamlet WWTF
DISPOSAL AREA INFORMATION APPLICATION LIMITATIONS
Site Owner County Latitude Longitude Net Dominant Parameter Rate Units
Acreage Soil Series
1 CSX Transportation,Inc. Richmond 34.913591' -79.658271° 1.01 -- 01284—Non-Discharge Application Rate 200,000 GPD
2 CSX Transportation,Inc. Richmond 34.913844' -79.657657' 1.01 -- 01284—Non-Discharge Application Rate 200,000 GPD
3 CSX Transportation,Inc. Richmond 34.914112' -79.657086' 1.01 -- 01284—Non-Discharge Application Rate 200,000 GPD
4 CSX Transportation,Inc. Richmond 34.914546' -79.656104' 1.01 - 01284—Non-Discharge Application Rate 200,000 GPD
5 CSX Transportation,Inc. Richmond 34.914798° -79.6555270 1.01 -- 01284—Non-Discharge Application Rate 200,000 GPD
Totals 5.05
WQ0000601 Version 5.0 Attachment B Page 1 of 1

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WQ0000601 Version 5.0 Attachment B Page 2 of 1

ATTACHMENT C—GROUNDWATER MONITORING AND LIMITATIONS Permit Number: WQ0000601 Version: 5.0
Monitoring Wells: MW-1,MW-2,MW-3,MW-4,MW-5,MW-7, and MW-8
GROUNDWATER CHARACTERISTICS GROUNDWATER STANDARDS MONITORING REQUIREMENTS
PCS Code Parameter Description Daily Maximum Frequency Measurement Sample Type Footnotes
01002 Arsenic,Total(as As) 0.01 mg/L 3 x Year Grab 1,5
01007 Barium,Total(as Ba) 2 mg/L 3 x Year Grab 1,5
01027 Cadmium,Total(as Cd) 0.005 mg/L 3 x Year Grab 1,5
00680 Carbon,Tot Organic(TOC) mg/L 3 x Year Grab 1,4
01034 Chromium,Total(as Cr) 0.05 mg/L 3 x Year Grab 1,5
01051 Lead,Total(as Pb) 0.015 mg/L 3 x Year Grab 1,5
00620 Nitrogen,Nitrate Total(as N) 10 mg/L 3 x Year Grab 1
00400 pH su 3 x Year Grab 1,2,6
70300 Solids,Total Dissolved-180°C 500 mg/L 3 x Year Grab 1
82546 Water Level,Distance from measuring point feet 3 x Year Calculated 1,2,3
1. 3 x Year monitoring shall be conducted in March,July,and November.
2. The measurement of water levels shall be made prior to purging the wells.The depth to water in each well shall be measured from the surveyed point on the top of the casing. The measurement of
pH shall be made after purging and prior to sampling for the remaining parameters.
3. The measuring points(top of well casing)of all monitoring wells shall be surveyed to provide the relative elevation of the measuring point for each monitoring well. The measuring points(top of
casing)of all monitoring wells shall be surveyed relative to a common datum.
4. If TOC concentrations greater than 10 mg/L are detected in any downgradient monitoring well,additional sampling and analysis shall 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.
5. Monitoring wells shall be reported consistent with the nomenclature and location information provided in Figure 1 and this attachment.
6. Groundwater at the facility has exhibited a background pH range of 5.0 to 7.0 su,therefore this parameter is not currently subject to the 15A NCAC 02LGroundwater Standard for pH.
WQ0000601 Version 5.0 Attachment C Page I of 1

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