WQ0004972_Final Permit_20090911

NCDEN
Narth Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
September 11, 2009
Laura Choi, — Permit & License Agent
MHC TT, Inc.
2 N. Riverside Plaza, Suite 800
Chicago, Illinois 60606
Dear Ms. Choi:
Dee Freeman
Secretary
Subject: Permit No. WQ0004972
Forest Lake Preserve
Wastewater Irrigation System
Davie County
In accordance with your name change request received August 10, 2009, we are forwarding
herewith Permit No. WQ0004972, dated September 11, 2009, to MHC TT, Inc. for the continued
operation of the subject wastewater treatment and wastewater irrigation facilities.
Please note the Permittee has been changed from Thousand Trails, LP to MHC TT, Inc.
This permit shall be effective from the date of issuance until October 31, 2011, shall void Permit
No. WQ0004972 issued November 17, 2006 and shall be subject to the conditions and limitations as
specified therein. Please review the permit thoroughly, as some conditions may have been added, deleted,
or revised since the last permit issuance due to the implementation of a new permit template. Please note
that monitoring requirements have not changed since the previous permit issuance. However, monitoring
requirements for wastewater effluent, irrigation sites, and monitoring wells are now provided in
Attachments A, B, and C, respectively. Failure to establish an adequate system for collecting and
maintaining the required operational information shall result in future compliance problems.
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 150E of the
North Carolina General Statutes, and filed with the Office of Administrative Hearings at 6714 Mail
Service Center, Raleigh, NC 27699-6714. Unless such demands are made, this permit shall be final and
binding.
AWFER PROTECTION SECTION
1636 Dail Service Cente Raleigt., worth Carotina 27699-1636
Locak).-: 2728 Capital Bouievai . Raleio, North Carolina 27604
Pnone; 919-733-3221 i FAX : 91G-79 MS82: FAX 2: 9?9-?15 64481 Customer 5ervioa:1-377-623-674c
Intemel: www.t)cwaterguality.org
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Ms. Laura Choi
September 11, 2009
Page 2 of 2
If you need additional information concerning this matter, please contact Lori Montgomery at
[phone] or [e-mail].
Sincerely,
w
Coleen17-�
Sullins
cc: Davie County Health Department
Winston-Salem Regional Office, Aquifer Protection Section
Technical Assistance and Certification Unit
Permit File WQ0004972
Notebook File WQ0004972

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
WASTEWATER 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
MMC TT, Inc.
Davie County
FOR THE
continued operation of a collection system serving 283 camp sites and eighteen (18) cabins, consisting of:
seven (7) grinder pump stations with associated collection piping; 430 linear feet (If) of 3-inch force
main, 455 if of 4-inch force main; and 935 If of 6-inch force main; and
continued operation of a 24,400 gallon per day (GPD) wastewater irrigation facility consisting of: an
extended aeration wastewater treatment facility with a treatment capacity of 45,000 GPD which includes
one (1) 14,800-gallon aerated surge tank with influent bar screen served by dual (2) 74 gallon per minute
(GPM) submersible pumps and a high water alarm; one (1) 45,000-gallon aeration tank served by dual (2)
285 cubic feet per minute (CFM) blowers; one (1) 4,500-gallon sludge holding tank; one (1) 7,500-gallon
clarifier, one (1) 940-gallon baffled chlorine contact tank with a hypochlorinator; one (1) 0.408 million
gallon (MG) synthetically lined effluent storage lagoon; two (2) ,142 GPM effluent dosing pumps; a spray
irrigation area of 9.0 acres and eighteen (18) sprinkler heads to serve Forest Lake Preserve, with no
discharge of wastes to surface waters, pursuant to the application received August 10, 2009, and in
conformity with the project plans, 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 October 31, 2011, shall void Permit No.
WQ0004972 issued November 17, 2006 and shall be subject to the following specified conditions and
limitations:
WQ0004972 Version 2.1 Shell Version 090806 Page 1 of 9

L SCHEDULES
1. No later than six months prior to the expiration of this permit, the Permittee shall request renewal of
this permit on official Division forms. Upon receipt of the request, the Division will review the
adequacy of the facilities described therein, and if warranted, will renew the permit for such period of
time and under such conditions and limitations as it may deem appropriate. Please note Rule 15A
NCAC 02T .0105(d) requires an updated site map to be submitted with the permit renewal
application.
H. PERFORMANCE STANDARDS
The subject non -discharge facilities shall be effectively maintained and operated at all times 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 irrigation areas to adequately 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.
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.
3. All wells 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
jurisdictional laws and regulations pertaining to well construction.
4. The wastewater collection facilities shall be properly maintained and operated at all times. The
Permittee shall maintain compliance with an individual system -wide collection system permit for the
operation and maintenance of these facilities in accordance with 15A NCAC 02T .0400. If an
individual permit is not required, the following performance criteria shall be met as provided in 15A
NCAC 02T .0403.
a. The sewer system shall be effectively maintained and operated at all times to prevent discharge to
land or surface waters, and any contravention of groundwater or surface water standards.
b. A reap of the sewer system shall be developed and actively maintained.
c. An operation and maintenance plan shall be developed, implemented and maintained.
d. Pump stations not connected to a telemetry system shall be inspected every day (i.e., 365 days per
year). Pump stations connected to a telemetry system shall be inspected at least once per week.
e. High -priority sewers shall be inspected at least once every six months.
f. A general observation of the entire sewer system shall be conducted at least once per year.
g. Overflows and bypasses shall be reported to the Wilmington Regional Office in accordance with
15A NCAC 02B .0506(a), and public notice shall be provided as required. per North Carolina
General Statute § 143-215.1 C.
h. A grease control program shall be developed, implemented and maintained.
L Right-of-ways and easements shall be maintained.
j. Inspection and maintenance records for Conditions 11.4.a. through 11.4.i. shall be maintained for a
period of at least three years, except for Conditions HA.b. and 1I.4.c., which shall be maintained
for the life of the system,
5. Effluent limitations shall not exceed those specified in Attachment A.
6. Application rates, whether hydraulic, nutrient or other pollutant, shall not exceed those specified in
Attachment B.
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7. The compliance boundary for the disposal system shall be specified in accordance with 15A NCAC
02L .0107(b). This disposal system was individually permitted on or after December 30, 1983;
therefore, the compliance boundary is established at either 250 feet from the effluent disposal area, or
50 feet within the property boundary, whichever is closest to the effluent 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.
S. In accordance with 15A NCAC 02L .0108, the review boundary is established midway between the
compliance boundary and the effluent disposal area. Any exceedance of groundwater standards at the
review boundary shall require action in accordance with 15A NCAC 02L .0106.
9. 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.
10. In accordance with 15A NCAC 02L .0107(d), no wells, excluding Division approved monitoring
wells, shall be constricted within the compliance boundary except as provided for in 15A NCAC 02L
.0107(g).
11. 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
Davie 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.
12. The facilities permitted herein shall be constructed according to the following setbacks:
a. The setbacks for irrigation sites permitted prior to September 1, 2006 shall be as follows (all
distances in feet):
i. Any habitable residence or place of public assembly under separate ownership: 400
ii. Surface waters: 100
iii. Any well with exception of monitoring wells: 100
iv. Any property line:. 150
v. Public right of ways: 50
b. The setbacks for storage and treatment units permitted prior to September 1, 2006 shall be as
follows (all distances in feet):
i. Any well with exception of monitoring wells:
ii. Any property line:
100
50
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III. OPERATION AND MAINTENANCE REQUIREMENTS
1. The facilities shall be properly maintained and operated at all times.
Upon the Water Pollution Control System Operators Certification Commission's (WPCSOCC)
classification of the subject non -discharge facilities, in accordance with 15A NCAC 08G .0200 the
Permittee shall designate and employ a certified operator in responsible charge (ORC) and one or
more certified operator(s) as back-up ORC(s). The ORC or their back-up shall visit the facilities in
accordance with 15A NCAC 08G .0200, and shall comply with all other conditions specified in the
previously cited rules.
A suitable year round vegetative cover shall be maintained at all times, 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 effluent ponding in or runoff from the irrigation sites
listed in Attachment B.
5. Irrigation shall not be performed during inclement weather or when the ground is in a condition that
will cause ponding or runoff.
All irrigation equipment shall be tested and calibrated at least once per permit cycle. Calibration
records shall be maintained at the facility for a period of no less than five years, and shall be made
available to the Division upon request.
7. Only effluent from Forest Lake Preserve shall be irrigated on the sites listed in Attachment B.
No automobiles or machinery shall be allowed on the irrigation sites except during equipment
installation or while maintenance is being performed.
9. Public access to the irrigation sites and wastewater treatment facilities shall be prohibited.
10. The residuals generated from the wastewater treatment facilities shall be disposed or utilized in
accordance with 15A NCAC 02T .l 100.
11. Diversion or bypassing of untreated or partially treated wastewater from the treatment facilities is
prohibited.
12. Freeboard in the effluent storage lagoon shall not be less than two feet at any time.
13. A protective vegetative cover shall be established and maintained on all earthen embankments (i.e.,
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 dikes or embankments.
Earthen embankment areas shall be kept mowed or otherwise controlled and accessible.
IV. MONITORING AND REPORTING REQUIREMENTS
1. Any Division required monitoring (including groundwater, plant tissue, soil and surface water
analyses) necessary to ensure groundwater and surface water protection shall be established, and an
acceptable sampling reporting schedule shall be followed.
2. Per 15A NCAC 02H .0800, a Division certified laboratory shall conduct all laboratory analyses for
the required effluent, groundwater or surface water parameters.
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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 to ensure the
accuracy and reliability of flow measurement consistent with accepted engineering and scientific
practices. Selected flow measurement devices shall be capable of measuring flows with a maximum
deviation of less than ten percent from true flow; accurately calibrated at a minimum of once per year;
and maintained to ensure the accuracy of measurements is consistent with the selected device's
accepted capability. The Permittee shall maintain records of flow measurement device calibration on
file for a period of at least five years. At a minimum, documentation shall include:
a. Date of flow measurement device calibration,
b. Name of person performing calibration., and
c. Percent from true flow.
4. The Permittee shall monitor the effluent from the subject facilities at the frequencies and locations for
the parameters specified in Attachment A.
5. The Permittee shall maintain adequate records tracking the amount of effluent irrigated. At a
minimum, these records shall include the following information for each irrigation site listed in
Attachment B:
a. Date of irrigation;
b. Volume of effluent irrigated;
c. Site irrigated;
d. Length of time site is irrigated;
e. Continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings;
f. Weather conditions; and
g. Maintenance of cover crops.
6. Freeboard (i.e., waste level to the lowest embankment elevation) in the effluent storage lagoon shall
be recorded weekly. Weekly freeboard records shall be maintained at the facility for a period of no
less than five years, and shall be made available to the Division upon request.
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 1V.5 and
IV.6.) on Form NDAR-1 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 Quality
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
8. A record shall be maintained of all residuals removed from this facility. This record shall be
maintained at the facility for a period of no less than five years, and shall be made available to the
Division upon request. At a minimum, 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.
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A maintenance log shall be maintained at this facility. This log shall be maintained at the facility for
a period of no less than five years, and shall be made available to the Division upon request. At a
minimum, this log shall include:
a. Date of calibration of flow measurement device;
b. Visual observations of the plant and plant site; and
c. Record of preventative maintenance (e.g., changing of equipment, adjustments, testing,
inspections and cleanings, etc.),
10. Monitoring wells shall be sampled at the frequencies and for the parameters specified in Attachment
C. All mappiLig, well construction forms well abandonment forms and monitoring data shall refer to
the permit number and the well nomenclature as provided in Attachment C.
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 Quality
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
12. Noncompliance Notification:
The Permittee shall report by telephone to the Winston-Salem Regional Office, telephone number
[phone], 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 facility resulting in the treatment of significant amounts of wastes that is
abnormal in quantity or characteristic, including the known passage of a hazardous substance.
b. Any process unit failure (e.g., mechanical, electrical, etc.), due to known or unknown reasons,
rendering the facility incapable of adequate wastewater treatment.
c. Any facility failure resulting in a by-pass directly to receiving surface waters.
d. Any time self -monitoring indicates the facility has gone out of compliance with its permit
limitations.
e. Ponding in or runoff from the irrigation sites.
Any emergency requiring immediate reporting (e.g., discharges to surface waters, imminent failure of
a storage structure, etc.) outside normal business hours shall be reported to the Division's Emergency
Response personnel at telephone number [phone], [phone], or [phone].
Persons reporting such occurrences by telephone shall also file a written report in letter form within
five days following first knowledge of the occurrence. This report shall outline the actions taken or
proposed to be taken to ensure the problem does not recur.
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V. INSPECTIONS
1. The Permittee shall provide adequate inspection and maintenance to ensure proper operation of the
wastewater treatment and disposal facilities.
2. The Permittee or their designee shall inspect the wastewater treatment and disposal facilities to
prevent malfunctions, facility deterioration and operator errors resulting in discharges, which may
cause the release of wastes to the environment, a threat to human health or a public nuisance. The
Permittee shall maintain an inspection log that includes, at a minimum, the date and time of
inspection, observations made, and any 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.
3. Any duly authorized Division representative may, upon presentation of credentials, enter and inspect
any property, premises or place on or related to the wastewater treatment and disposal facilities
permitted herein at any reasonable time for the purpose of determining compliance with this permit;
may inspect or copy any records required to be maintained under the terms and conditions of this
permit, and may collect groundwater, surface water or leachate samples.
VI. GENERAL CONDITIONS
1. Failure to comply with the conditions and limitations contained herein may subject the Permittee to
an enforcement action by the Division in accordance with North Carolina General Statutes 143-
215.6A to 143-215.6C.
2. This permit shall become voidable if the permitted facilities are not constructed in accordance with
the conditions of this permit, the Division approved plans and specifications, and other supporting
documentation.
3. This permit is effective only with respect to the nature and volume of wastes described in the permit
application, Division approved plans and specifications, and other supporting documentation. No
variances to applicable rules governing the construction or operation of the permitted facilities are
granted, unless specifically requested and approved in this permit pursuant to 15A NCAC 02T
.0105(n).
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 jurisdictional government agencies
(e.g., local, state, and federal). 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 NCG010000; any requirements pertaining to wetlands under
15A NCAC 02B .0200 and 02H .0500; and documentation of compliance with Article 21 Part 6 of
Chapter 143 of the General Statutes.
5. In the event the permitted facilities change ownership or the Permittee changes their name, a formal
permit modification request shall be submitted to the Division. This request shall be made on official
Division forms, and shall include appropriate property ownership documentation and other supporting
documentation as necessary. The Permittee of record shall remain fully responsible for maintaining
and operating the facilities permitted herein until a permit is issued to the new owner.
The Permittee shall retain a set of Division approved plans and specifications for the life of the
facilities permitted herein.
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 pursuant to 15A NCAC
02T .01050).
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8. This permit is subject to revocation or unilateral modification upon 60 days notice from the Division
Director, in whole or part for the requirements listed in 15A NCAC 02T A 110.
9. Unless the Division Director grants a variance, expansion of the permitted facilities contained herein
shall not be granted if the Permittee exemplifies any of the criteria in 15A NCAC 02T .0120(b).
10. The Permittee shall pay the annual fee within 30 days after being billed by the Division. Failure to
pay the annual fee accordingly shall be cause for the Division to revoke this permit pursuant to 15A
NCAC 02T .0105(e)(3).
Permit issued this the 11 fl' day of September, 2009
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
—, '�g A '-�-
Q1- C661cen Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0004972
WQ0004972 Version 2.1 Shell Version 090806 Page 8 of 8

ATTACHMENT A - LIMITATIONS AND MONITORING REQUIREMENTS
PPI 001— WWTP Influent
Permit Number: WQ0004972 Version: 2.0
MONITORING
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
REQUIREMENTS
Parameter Description -PCS Cade
Monthly Average
mean Monthly Geometric
Daily Minimum
Daily Maximum
Measurement
Frequency
Sample
Type
Flow, in conduit or thru treatment plant - 50050
24,400
GPD
Continuous
Recorder
PPI 002 — WWTP Effluent
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING
REQUIREMENTS
Parameter Description -PCS Code
Monthly Average
Monthly Geometric
Mean
Daily Minimum
Daily Maximum
Measurement
Frequency
Sample
Type
BUD, 5-Day (20 Deg. C) - 00310
rng/l
Grab
3 X Year
Solids. Total Suspended - 00530
mgll
Grab
3 X Year
Coliform. Fecal MF, M-FC. Broth.44.5C - 31616
##/100 ml
Grab
3 X Year
Nitrogen, Ammonia Total (as N) - 00610
mg/l
Grab
3 X Year
Nitrogen, Nitrate Total (as N) - 00620
mgd
Grab
3 X Year
Nitrogen, Kjeldahl, Total (as N) - 00625
Ing/1
Grab
3 X Year
Phosphorus. Total (as P) - 00665
ing/l
Grab
3 X Year
pll - 0400
s.u.
S.U.
Grab
3 X Year
1. 3 X Year sampling shall be conducted in March, July. and November.
WQ0004972 Version 2.1 Attachment A Page I of 2

THIS PAGE BLANK
WQ0004�, _ Version 2.1 Attachment A Yoe 2 of 2

ATTACHMENT S -- APPROVED LAND APPLICATION SITES AND LIMITATIONS
MHC TT, Inc. — Forest Lake Preserve
Permit Number: WQ0004972 Version: 2.1
IRRIGATION AREA INFORMATION
APPLICATION LIMITATIONS
Field
Owner
County
Latitude
Longitude
Net
Acreage
Dominant
Soil Series
Parameter
Hourly
Rate
Yearly
Max
Knits
I
MIIC TT. Inc.
Davie
35052'02"
80023'0 V
9.0
01284 - Application Surface Irrigation
0,11
46.9
inches
Totals
9 0
WQ0004972 Version 2.1 Attachment B Page I of 2

THIS PAGE BLANK
WQ0004 Version 2.1 Attachment B 'age 2 of 2

ATTACHMENT C -- GROUNDWATER MONITORING AND LIMITATIONS
Monitoring Wells: MW-I, MW-2, MW-3, and MW-4:
Permit Nnmber: WQ0004972 Version: 2.1
GROUNDWATER CHARACTERISTICS
GROUNDWATER STANDARDS
MONITORING REQUIREMENTS
Parameter Description - Parameter Code
Daily Maximum
Frequency Measurement
Sample Type
Footnotes
Water level, distance from measuring point - 92546
3 X Year
Calculated
1.2,3
Coliforrn, Fecal MF. M-FC Broth,44.5C - 31616
3 X Year
Grab
1,2
p11 - 00400
3 X Year
Grab
I
C hlori.de (as Cl) - 00940
250
mg/I
3 X Year
Grab
I
Nitrogen, Nitr it, To Lai (as N) - 00620
10
mgll
3 X Year
Grab
1
Carbon. rot Organic (TOC) - 00680
3 X Year
Grab
1,6
Volatile Compounds. (GC/MS) - 78732
3 X Year
Grab
L4,5
I. 3 x Year monitoring shall be conducted in March. July & November: Annual monitoring shall be conducted every November.
2. The measurement of water levels shall be made prior to purging the wells. The depth to water in each vvell shall be measured from the surveyed point on the top of the casing. The measurement
of pit shall be made after purging and prior to sampling for the remaining parameters_
3. 'rhe measuring points (top of well casing) of all monitoring wells shall be surveyed to provide the relative elevation of the measuring point ror each monitoring well. The measuring points (top
of casing) of all monitoring wells shall be surveyed relative to a common datum.
4. Volatile Organic Compounds (VOC) - In November only. analyze by one of the following methods:
a. Standard Method 6230D, PQL at 0.5 l€g/L or less
b. Standard Method 621013_ POL at 0.5 pg/L or less
C. EPA Method 8021. Low Concentration. PQL at 0.5 lrg/L or less
d. EPA Method 8260, Low Concentration, PQI, at 0.5 pg/L or less
e. 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 'fable VIII of Standard Method 6230D,
C. The method used must provide a PQL of 0.5 lug/L or less that must be supported by laboratory proficiency studies as required by the DWQ Laboratory Certification Unit. Any constituents
detected above the NIDL but below the PQL of 0.5 pg/L must he qualified (estimated) and reported.
5. If any volatile organic compounds (VOC) are detected as a result of monitoring as provided in Attachment C, then the Winston Salem Regional Office Aquifer Protection Supervisor, telephone
number [phone], must be contacted immediately ror further instructions regarding any additional follow-up analyses required.
6. If TOC concentrations greater than 10 mg11 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.
7. Monitoring wells shall be reported consistent with the nomenclature and location information provided in this attachment.
WQ0004972 Version 2.1 Attachment C Page I of l

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