HomeMy WebLinkAboutWQ0003299_Final Permit_20071019O�O� VVA ,QG Michael F. Easley, Governor
7 William G. Ross Jr., Secretary
1- North Carolina Department of Environment and Natural Resources
Q P
-C Coleen H. Sullins, Director
Division of Water Quality
October 19, 2007
Melvin Broadnax - Mayor
Town of Seaboard
P.O. Box 327
Seaboard, NC 27876
Dear Mr. Broadnax:
Subject: Permit No. WQ0003299
Town of Seaboard WWTF
Wastewater Surface Irrigation
Northampton County
In accordance with your permit renewal request received July 20, 2007, we are forwarding
herewith Permit No. WQ0003299, dated October 19, 2007, to the Town of Seaboard for the continued
operation of the subject wastewater treatment and surface irrigation facilities.
This permit shall be effective from the date of issuance until September 30, 2012, shall void
Permit No. WQ0003299 issued December 19, 2002, 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. Please note that the effluent sampling parameters and frequencies
have been changed (Attachment A).
Based on historical influent flow violations, the Town has been placed on moratorium by the
Raleigh Regional Office and will Iikely experience future violations (i.e., this permit does not increase
any flow limit). The Town may voluntarily enter into a Special Order of Consent (SOC) to address the
compliance issues in a timely manner while receiving relief from meeting specific permit conditions. The
Town should contact the Raleigh Regional Office for information concerning an SOC and the flow
moratorium.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the
right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of
this permit. This request must 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, 6714 Mail Service
Center, Raleigh., NC 27699-6714. Unless such demands are made this permit shall be final and binding.
If you need additional information concerning this matter, please contact Matthew Fleahman at
(919) 715-6173 or matthew.fleahman@ncmail.net,
Since i ,
Coleen H. Sullins
N'rthCarolina
�a,Flll'airt'X�
Aquifer Protection Section 1636 Mail Service Center Raleigh, NC 27699-1636 Telephone : (919) 733-3221
Internet: www.newateraualitv.ors Location: 2729 Capital Boulevard Raleigh, NC 27604 Fax 1: (919) 715-0588
Fax 2: (919) 715-6048
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10%Post Consumer Paper Customer Service: (877) 623-6748
cc: Northampton County Health Department
Raleigh Regional Office, Aquifer Protection Section
Technical Assistance and Certification Unit
APS Central Files
LAU Files
NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
SURFACE 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
Town of Seaboard
Northampton County
FOR THE
continued operation of a 134,000 GPD surface irrigation treatment and disposal facility consisting of a
35.1 acre spray field, divided into three zones with 91 spray nozzles in each zones, two 1.5 acre
stabilization lagoons, a 1.5 million gallon lagoon that is pumped to a 7.425 million gallon storage lagoon,
an irrigation pumping system with three (3) 235 GPM centrifugal pumps and associated piping, two (2)
200 GPM vertical turbine pumps and associated pumping for transfer of wastewater, chlorinating system,
2,825 linear feet of 10-inch sewer lines, a manual bar screen with flow meter, monitoring wells and
laboratory facilities to serve the Town of Seaboard, with no discharge of wastes to the surface waters,
pursuant to the application received July 20, 2007, and subsequent additional information received by the
Division of Water Quality (Division), and in conformity with the project plan, specifications, and other
supporting data subsequently filed and approved by the Department of Environment and Natural
Resources and considered a part of this permit.
This permit shall be effective from the date of issuance until August 31, 2012, shall void Permit No.
WQ0003299 issued December 19, 2002, and shall be subject to the following specified conditions and
limitations:
I. SCHEDULES [please review the entire permit for reporting, monitoring, and other on -going activities)
1. Within one year of permit issuance, the depth of residuals in Lagoon No. 1 of the wastewater
treatment facilities shall be measured, recorded, and reported as an attachment to the Form NDAR-1
that documents the application activities that occurred during that month. An assessment of whether
residuals removal activities have to be scheduled or a schedule of residuals removal activities for any
of the basins/lagoons, as indicated by the criteria listed below, shall be included in this attachment.
To conduct these measurements Lagoon No. 1 shall be divided into a grid of 10 sectors approximately
equal in size and shape, and the depth of the residuals shall be measured using appropriate methods in
the approximate center of each grid sector. The data collected shall then be used to develop a contour
map of residuals accumulation for the referenced lagoon.
WQ0003299 Version 3.0 Shell Version 070531 Page 1 of 8
No later than six (6) months prior to the expiration of this permit, the Permittee shall request renewal
of this permit on official Division form(s). Upon receipt of the request, the Division 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. Please note that Rule
15A NCAC 02T ,0105(d) requires an updated site map to be submitted with the permit renewal
application.
11. PERFORMANCE STANDARDS
The surface irrigation facilities shall be effectively maintained and operated at all times so that there
is no discharge to the surface waters, nor any contravention of groundwater or surface water
standards. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions or failure of the irrigation area to adequately assimilate the wastewater, the
Permittee shall take immediate corrective actions including those actions that may be required by the
Division, such as the construction of additional or replacement wastewater treatment and disposal
facilities.
2. The issuance of this permit shall not relieve the Permittee of the responsibility for damages to ground
or surface waters resulting from the operation of this facility.
3. All wells that are constructed for purposes of groundwater monitoring shall be constructed in
accordance with 15A NCAC 02C .0108 (Standards of Construction for Wells Other than Water
Supply) and any other state and local laws and regulations pertaining to well construction.
4. Effluent limitations shall not exceed those specified in Attachment A.
Application rate(s), whether hydraulic, nutrient, or other pollutant shall not exceed those specified in
Attachment B .
The compliance boundary for the disposal system is specified by rules in 15A NCAC 02L .0100,
Groundwater Classifications and Standards. This disposal system was individually permitted prior to
December 30, 1983; therefore, the compliance boundary is established at either 500 feet from the
waste disposal area, or at the property boundary, whichever is closest to the waste disposal area. An
exceedance of groundwater standards at or beyond the compliance boundary is subject to remediation
action according to 15A NCAC 02L .0106(d)(2) as well as enforcement actions in accordance with
North Carolina General Statute 143-215.6A through 143-215.6C.
7. The Permittee shall apply for a permit modification prior to any sale or transfer of property that
affects a compliance boundary to establish a new compliance boundary.
8. In accordance with 15A NCAC 02L .0107(d), no wells, other than monitoring wells, shall be
constructed within the compliance boundary except as provided by 15A NCAC 02L .0107(g).
9. The review boundary is established around the disposal systems midway between the compliance
boundary and the perimeter of the waste disposal area, Any exceedance of standards at the review
boundary shall require action in accordance with 15A NCAC 02L .0106.
10. The facilities permitted herein must be constructed according to the following setbacks:
a. The setbacks for Irrigation sites shall be as follows (all distances in feet):
i. Any habitable residence or place of public assembly under separate ownership:
ii. Surface waters:
iii. Any well with exception of monitoring wells:
iv. Any property line:
v, Public right of way:
400
100
100
150
50
WQ0003299 Version 3.0
Shell Version 070531
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b. The setbacks for Treatment and storage units shall be as follows (all distances in feet):
i. Any well with exception of monitoring wells: 100
ii. Any property line: 50
III. OPERATION AND MAINTENANCE REQUIREMENTS
The facilities shall be properly maintained and operated at all times. 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. The Permittee shall maintain an Operation and
Maintenance Plan pursuant to 15A NCAC 02T .0507 including operational functions, maintenance
schedules, safety measures, and a spill response plan.
2. Upon classification of the wastewater treatment and irrigation facilities by the Water Pollution
Control System Operators Certification Commission (WPCSOCC), the Permittee shall designate and
employ a certified operator to be in responsible charge (ORC) and one or more certified operator(s) to
be back-up ORC(s) of the facilities in accordance with 15A NCAC 08G .0200. The ORC shall visit
the facilities in accordance with 15A NCAC 08G .0200 or as specified in this permit and shall comply
with all other conditions specified in these rules.
3. A suitable year round vegetative cover shall be maintained such that crop health is optimized, allows
for even distribution of effluent, and allows inspection of the irrigation system.
4. Adequate measures shall be taken to prevent wastewater ponding or runoff from the irrigation field.
5. Irrigation shall not be performed during inclement weather or when the ground is in a condition that
will cause ponding or runoff.
6. All waste application equipment must be tested and calibrated at least once per year. Records of the
calibration must be maintained for five years.
7. No type of wastewater other than that from the Town of Seaboard WWTF shall be irrigated 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. Such controls may include the posting
of signs showing the activities being conducted at each site.
10. The residuals generated from these treatment facilities must be disposed / utilized in accordance with
15A NCAC 02T .1100. The Permittee shall maintain a residual management plan pursuant to 15A
NCAC 02T .0508.
11. Diversion or bypassing of the untreated wastewater from the treatment facilities is prohibited.
12. Freeboard in the treatment lagoons and storage basins shall not be less than two feet at any time.
13. A waste -level gauge, to monitor waste levels in the treatment lagoons and storage basins, shall be
provided. This gauge shall have readily visible permanent markings indicating the 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 elevations. Caution must be
taken not to damage the integrity of the liner when installing the gauge.
WQ0003299 Version 3.0 Shell Version 070531 Page 3 of 8
14. A protective vegetative cover shall be established and maintained on all earthen basin embankments
(outside toe of embankment to maximum allowable temporary storage elevation on the inside of the
embankment), berms, pipe runs, erosion control areas, and surface water diversions. Trees, shrubs,
and other woody vegetation shall not be allowed to grow on the earthen basin dikes or embankments.
Earthen basin embankment areas shall be kept mowed or otherwise controlled and accessible.
IV. MONITORING AND REPORTING REQUIREMENTS
Any monitoring (including groundwater, surface water, soil or plant tissue analyses) deemed
necessary by the Division to ensure surface and ground water protection will be established and an
acceptable sampling reporting schedule shall be followed.
2. All laboratory analyses for effluent, ground waters, or surface waters shall be made by a laboratory
certified by the Division for the required parameter(s) under 15A NCAC 02H .0800.
3. Flow through the treatment facility shall be continuously monitored and daily flow values shall be
reported on Form NDMR.
The Permittee shall install and maintain an appropriate flow measurement device consistent with
approved engineering and scientific practices to ensure the accuracy and reliability of flow
measurement. Flow measurement devices selected shall be capable of measuring flows with a
maximum deviation of less than 10 percent from true flow, accurately calibrated at a minimum of
once per year, and maintained to ensure that the accuracy of the measurements is consistent with the
accepted capability of that type of device. The Permittee shall keep records of flow measurement
device calibration on file for a period of at least three years. At a minimum, data to be included in
this documentation shall be.
a. Date of flow measurement device calibration,
b. Name of person performing calibration, and
c. Percent from true flow.
4. The effluent from the subject facilities shall be monitored by the Pennittee at the frequency(ies) and
location(s) for the parameter(s) specified in Attachment A.
5. The Permittee tracking the amount of wastewater disposed shall maintain adequate records. These
records shall include, but are not necessarily limited to, the following information;
a. Date of irrigation,
b. Volume of wastewater irrigated,
e. 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. Continuous monthly and year-to-date loadings for any non -hydraulic parameter specifically
limited in Attachment B for each field,
g. Weather conditions, and
h. Maintenance of cover crops.
b. Freeboard (waste level to the lowest elevation on the top of the embankment) in the treatment lagoons
and storage basins shall be recorded weekly.
7. Monitor wells shall be sampled at the frequencies and for the parameters specified in Attachment C.
All ma in well construction forms well abandonment forms and monitorin g data shall refer to the
permit number and the well nomenclature as provided in Attachment C and Figure 1.
WQ0003299 Version 3.0 Shell Version 070531 Page 4 of 8
Two (2) copies of the results of the sampling and analysis must be received on Form GW-59
(Groundwater Quality Monitoring: Compliance Report Form), along with attached copies of
laboratory analyses, by the Division of Water Quality, information Processing Unit, 1617 Mail
Service Center, Raleigh, North Carolina 27699-1617 on or before the last working day of the month
following the sampling month. Form GW-59 shall include the number of this permit and the
appropriate well identification number. One Form GW-59a certification form shall be provided for
each set of sampling results submitted.
Three (3) copies of all monitoring data [as specified in Conditions IV. 3. and IV. 4.] on Form NDMR
for each PPI and three (3) copies of all operation and disposal records [as specified in Conditions IV.
5 and IV. 6.] on Form NDAR-1 for every field 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 Quality
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
10. An annual representative soils analysis (Standard Soil Fertility Analysis) shall be conducted on each
irrigation field and the results maintained on file by the Permittee for a minimum of five years. The
Standard Soil Fertility Analysis shall include, but is not necessarily limited to, the following
parameters:
Acidity
Manganese
Potassium
Calcium
Percent Humic Matter
Sodium
Copper
pH
Zinc
Magnesium
Base Saturation by calculation)
Phosphorus
Cation Exchange Capacity
Exchangeable Sodium Percentage
11. Noncompliance Notification:
The Permittee shall report by telephone to the Raleigh Regional Office, telephone number (919) 791-
4200, 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 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 including ponding in the irrigation field or runoff
from the irrigation fields.
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.
c. Any failure of disposal system resulting in a by-pass directly to receiving waters.
d. Any time that self -monitoring information indicates that the facility has gone out of compliance
with its permit limitations including, but not limited to, freeboard measurements, effluent
limitations, exceedances of groundwater standards, or overloading of any field.
WQ0003299 Version 3.0 Shell Version 070531 Page 5 of 8
For any emergency that requires immediate reporting (e.g., discharges to surface waters, imminent
failure of a storage structure, etc.) outside normal business hours must be reported to the Division's
Emergency Response personnel at telephone number (800) 662-7956, (800) 858-0368, or (919) 733-
3300. Persons reporting such occurrences by telephone shall also file a written report in letter form
within five (5) 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.
V. INSPECTIONS
1. Adequate inspection and maintenance shall be provided by the Permittee to ensure 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 five years from the date. of the inspection and shall be
made available upon request to the Division or other permitting authority.
3. Any duly authorized officer, employee, or representative of the Division may, upon presentation of
credentials, enter and inspect any property, premises or place on or related to the disposal site or
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, surfacewater, or leachate.
V.I. GENERAL CONDITIONS
Failure to abide by the conditions and limitations contained in this permit may subject the Permittee
to an enforcement action by the Division in accordance with North Carolina General Statute 143-
215.6A to 143-215.6C.
2. This permit shall become voidable unless the facilities are constructed in accordance with the
conditions of this permit, the approved plans and specifications, and other supporting data.
3. This permit is effective only with respect to the nature and volume of wastes described in the
application and other supporting data. No variances to applicable rules governing the construction
and / or operation of the permitted facilities are granted unless specifically requested and granted in
this permit.
4. The issuance of this permit does not exempt 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) that have jurisdiction. Of particular concern to the Division are applicable river buffer
rules in 15A NCAC 02B .0200, erosion and sedimentation control requirements in 15A NCAC
Chapter 4 and under the Division's General Permit NCGO 10000, and any requirements pertaining to
wetlands under 15A NCAC 02B .0200 and 02H .0500.
5. 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 on official Division form(s),
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. The
Permittee of record shall remain fully responsible for compliance until a permit is issued to the new
owner.
The Permittee shall retain a set of approved plans and specifications for the life of the facilities
permitted herein.
WQ0003299 Version 3.0 Shell Version 070531 Page 6 of 8
7. The Permittee shall maintain this permit until all permitted facilities herein are properly closed or
permitted under another permit issued by the appropriate permitting authority.
8. The Permittee must pay the annual fee 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
pursuant to 15A NCAC 02T .0105(e).
Permit issued this the 19'' day of October 2007
NORTH OLINA ENV ONMENTAL MANAGEMENT COMMISSION
-4-Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0003299
WQ0003299 Version 3.0 Shell Version 070531 Page 7 of 8
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WQ0003299 Version 3.0 Shell Version 070531 Page 8 of 8
ATTACHMENT A - LIMITATIONS AND MONITORING REQUIREMENTS
PPI 001 - Influent
Permit Number: WQ0003299 Version: 3.0
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Parameter Description - PCS Code
Monthly Average
Weekly Average
Daily Maximum
Measurement
Frequency
Sample
Type
Flow, in conduit or thru treatment plant - 50050
134,000
1 gpd
Continuous
Recorder
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING REQUIREMENTS
Parameter Description - PCS Code
Monthly Average'
Weekly Average
Daily Maximum`
Measurement
Frequency
Sample
Type
Nitrogen, Nitrate Total (as N) - 00620
Monthly
Composite
BOD, 5-Day (20 Deg. C) - 00310
Monthly
Composite
Solids, Total Suspended - 00530
Monthly
Composite
pH - 00400
5 X week
Grab
Nitrogen, Ammonia Total (as N) - 00610
Monthly
Composite
Nitrogen, Kjeldahl, Total (as N) - 00625
Monthly
Composite
Coliform, Fecal MP, M-FC Broth,44.5C - 31616
b
Monthly
Grab
Chlorine, Total Residual - 50060
5 X week
Grab
Notes
'Monthly averages for all but fecal coliform shaft be the arithmetic mean of all samples collected during the reporting period.
b Monthly average for fecal coliform shall be the geometric mean of all samples collected during the reporting period.
Daily maximum shall be the maximum value of all samples collected during the reporting period.
WQ0003299 Version 3.0 Attachment A Page I of 2
THIS PAGE BLANK
WQ0003299 Version 3.0 Attachment A Page 2 of 2
ATTACHMENT B - APPROVED LAND APPLICATION SITES AND LIMITATIONS
PERMITTEE -- FACILITY
Permit Number: WQ0003299 Version: 3.0
UTILIZATION AREA INFORMATION IAPPLICATION
LIMITATIONS
Field/
Basin
Owner
County
Latitude
Longitude
Net
Acreage
Dominant
Suit Series
parameter
Rate
yearly
Max
Units
36029'55"
77°25'60"
11.70
01284 - Application Surface
0.2
61
Inches
01
Seaboard Town-Wwtf Spray
Northampton
Irrigation
01284 - Application Surface
36029'55"
77025'60"
11.70
0 2
61
Inches
02
Seaboard Town-Wwtf Spray,
Northampton
Irrigation
0 12 84 - Application Surface
03
Seaboard Town-Wwtf Spray
Northam ton
36029155"
77025'60"
11.70
lrrigation
0 2
61
inches
Total
I
35.10
WQ0003299 Version 3.0 Attachment B Page 1 of 2
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WQ0003299 Version 3.0 Attachment B Page 2 of 2
ATTACHMENT C — GROUNDWATER MONITORING AND LIMITATIONS
Monitoring wells: MW-2, MW-6, MW-7, MW-8, MW-9, and MW-10
Permit Number: WQ0003299 Version: 3.0
GROUNDWATER CHARACTERISTICS
GROUNDWATER STANDARDS
MONITORING REQUIREMENTS
Parameter Description - Parameter Code
Daily Maximum
Frequency Measurement
Sample Type
Footnotes
Water level, distance from measuring point - 82546
3 X year
Calculated
pH - 00400
6.50
8.50
3 X year
Grab
Coliform, Fecal MF, M-FC Broth,44.5C - 31616
3 X year
Grab
Solids, Total Dissolved- 180 Deg.0 - 70300
500.00
3 X year
Grab
Carbon, Tot Organic (TOC) - 00680
3 X year
Grab
Chloride (as Cl) - 00940
250.00
3 X year
Grab
Nitrogen, Ammonia Total (as N) - 00610
3 X year
Grab
Nitrogen, Nitrate Total (as N) - 00620
10.00
3 X year
Grab
Volatile Compounds, (GC/MS) - 78732
Annual
Grab
Notes:
a. 3 X year monitoring shall be conducted in February, June, and October; Annual monitoring shall be conducted every November.
b. 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.
c. 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 paints (top
of casing) of all monitoring wells shall be surveyed relative to a common datum.
d. Volatile Organic Compounds (VOC) - In November only, analyze by one of the following methods:
1. Standard Method 6230D, PQL at 0.5 µg/L or less
2. Standard Method 621013, PQL at 0.5 µg/L or less
3. EPA Method 8021, Low Concentration, PQL at 0.5 µg/L or less
4_ EPA Method 8260, Low Concentration, PQL at 0.5 µg/L or less
5. Another method with prior approval by the Aquifer Protection Section Chief
Any method used must meet the following qualifications:
a. A laboratory must be DWQ certified to run any method used.
b. The method used must, at a minimum, include all the constituents listed in Table VIII of Standard Method 6230D.
c. The method used must provide a PQL of 0.5 µg/L or less that must be supported by laboratory proficiency studies as required by the DWQ Laboratory Certification Unit. Any constituents
detected above the MDL but below the PQL of 0.5 µg/1- must be qualified (estimated) and reported.
e. If any volatile organic compounds (VOC) are detected as a result of monitoring as provided in Attachment C, then the Raleigh Regional Office Aquifer Protection Supervisor, telephone number
(919) 791-4200 must be contacted immediately for further instructions regarding any additional follow-up analyses required.
WQ0003299 Version 3.0 Attachment C Page 1 of 2
f. 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.
g. Monitoring wells shall be reported consistent with the nomenclature and location information provided in Figure 1 and this attachment.
WQ0003299 Version 3.0 Attachment C .Page 2 of 2
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