WQ0005603_Final Permit_20150424

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HCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
April 24, 2015
Palmer Morris — Director of Manufacturing
Coats American, hic.
Post Office Box 368
Marion, North Carolina 28752
Dear Mr. Morris:
Donald van der Vaart
Subject: Perlit No. WQ0005603
Coats American, hic.
Closed -Loop Recycle System
McDowell County
Secretary
hi accordance with your permit renewal request received December 5, 2014, we are forwarding
herewith Permit No. WQ0005603 dated April 24, 2015, to Coats American, hic. for the continued
operation of the subject wastewater treatment and closed-loop recycle facilities. Please note that this
renewed permit shall become effective on June 1, 2015 (i.e. the day after the expiration date of the
existing permit), which differs from the date of this letter.
The modifications to the subject permit are as follows: Monitor Wells MW -2, MW -11R, MW -
12, MW -13, MW -14 and MW_ 15 will be permanently abandoned. Monitor Well MW -10 will become the
new background monitoring well, replacing well MW -2. Monitor Wells MW -11R and MW -15 will be
replaced with new wells MW -16 and MW -17. The groundwater monitoring program has been expanded
to include Total Alkalinity, Bicarbonate Alkalinity, Carbonate Alkalinity, Antimony, Beryllium, Boron,
Cobalt, Copper, hon, Molybdenum, Dissolved Oxygen, Field pH, Potassium, Specific Conductance,
Strontium, Temperature, Thallium, Turbidity, Vanadium and Zinc. Rule references have been added to
each perrnit condition. Monthly water level readings are required for the ash settling basin. Please note
that this permit does not supersede any future legislation regarding the management or closure of norz-
zrtility coal ash surface impoundments. (Permit Condition VI.4.).
This permit shall be effective from June 1, 2015 until May 31, 2020, shall void Permit No.
WQ0005603 issued June 21, 2006, and shall be subject to the conditions and limitations as specified
therein. Please pay particular attention to the monitoring requirements listed in Attachment C, for they
may differ from the previous permit issuance. Attaclunents A and B do not apply to this permit. Failure
to establish an adequate system for collecting and maintaining the required operational information shall
result in future compliance problems.
Please note that on September 1, 2006, North Carolina Administrative Code Title 15A
Subchapter 02T — Waste not Discharged to Surface Waters was adopted. Accordingly, this permit
incorporates the requirements of these rules; therefore, please take the time to review this permit
thoroughly. The following conditions have been added, modified or deleted from those in the last permit
issuance:
Non -Discharge Permitting Unit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Phone: [phone] \ Internet: http://portal.ncdenr.org/web/wg
An Equal Opportunity 1 Affirmative Action Employer — Made in part with recycled paper

Mr. Palmer Morris
April 24, 2015
Page 2 of 2
Please note the following permit conditions are new or have been significantly revised since
the last permit issuance:
➢ Condition I.I. —requires
Regional Office approval of two new monitor wells
➢ Condition I.2. —
requires the submittal of an updated site map
➢ Condition I.3. —
addresses the abandonment of certain monitor wells
➢ Condition 111. 1.
— an Operation & Maintenance Plan shall be maintained
➢ Condition III.3.
— public access to the facilities is prohibited
➢ Condition 111.4.
— requires maintaining a residuals management plan
➢ Condition VI.3.
—.the permit only applies to the nature and volume of the described waste
➢ Condition VIA.
— the permit does not supersede future legislation
➢ . Condition VI.7. — permit coverage must be maintained until the facility is properly closed
➢ Condition VI.8. —the permit maybe revoked or modified under certain circumstances
➢ Condition VI.9. —the facilities may not be expanded if certain conditions prevail
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. Unless such demands are made, this permit shall be final and
binding.
If you need additional information concerning this pernlit, please contact David Goodrich at (919)
807-6352 or by email at [e-mail].
Sine ely,
S. Jay Zimmerman, Director
Division of Water Resources
cc: McDowell County Health Department (Electronic Copy)
Asheville Regional Office, Water Quality Regional Operations Section (Electronic Copy)
Central Files
Digital Permit Archive (Electronic Copy)

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
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
Coats American, Inc.
McDowell County
FOR THE
continued operation of an existing wastewater treatment and closed-loop recycle facility consisting of:
a settling basin for ash from coal-fired boilers, wastewater from stack scrubbers, and all assorted piping,
valves, controls, and appurtenances
to serve Coats American, Inc. Sevier Plant, with no discharge of wastes to surface waters, pursuant to the
application received December 5, 2014, and in conformity with the project plans, specifications, and other
supporting data subsequently filed and approved by the Department of Enviromnent and Natural
Resources and considered a part of this pen -nit.
This pennit shall be effective from June 1, 2015 until May 31, 2020, shall void Pen -nit No. WQ0005603
issued June 21, 2006, and shall be subject to the following specified conditions and limitations:
I. SCHEDULES..
The Asheville Regional Office, telephone number [phone], shall approve monitoring wells
MW -16 and MW -17 prior to installation, and the monitoring wells shall be installed before
December 1, 2015. The regional office shall be notified at least 48 hours prior to the construction of
any monitoring well and such notification to the regional supervisor shall be made from 8:00 a.m.
until 5:00 p.m. on Monday through Friday, excluding State Holidays. The monitoring wells shall be
constructed such that the water level in the monitoring well is never above or below the screened
(open) portion of the well at any time during the year, and in accordance with 15A NCAC 02C .0108.
The general location and name for each monitoring well is marked on Figure 2. [15A NCAC 02C
.0108, 02T .0108(b)(2]
2. On or before September 1, 2015, the Permittee shall submit two original copies of a site map with a
scale no greater than 1 -inch equals 100 feet; however, special provisions may be granted upon prior
approval for large properties. At a minimum, the map shall include the following information:
a. The location and identity of each monitoring well.
b. The location of major components of the waste disposal system.
c. The location of property boundaries within 500 feet of the disposal areas.
d. The latitude and longitude of the established horizontal control monument.
WQ0005603 Version 3.0 Shell Version 150101 Page 1 of 6

e. The elevation of the,top of the well casing (i.e., measuring point) relative to a common datum.
f. The depth of water below the measuring point at the time the measuring point is established.
g. The location of compliance and review boundaries.
h. The date the map is prepared and/or revised.
Control monuments shall be installed in such a manner and made of such materials that the
monument will not be destroyed due to activities taking place on the property. The map and any
supporting documentation shall be sent to the Division of Water Resources, Water Quality Permitting
Section, 1636 Mail Service Center, Raleigh, NC 27699-1636. [15A NCAC 02T .0108(b) (2)]
On or before December 1, 2015, monitoring wells MW -2, MW -11R, MW -12, MW -13, MW -14 and
MW -15 shall be permanently abandoned. Within 30 days of abandonment, a Well Abandonment
Record (Form GW -30) listing this permit number and the appropriate monitoring well identification
number shall be completed for each well abandoned and mailed to the Division of Water Resources,
Water Quality Permitting Section, 1636 Mail Service .Center, Raleigh, NC 27699-1636. A North
Carolina Certified Well Contractor shall abandon the monitoring wells according to the North
Carolina Well Construction Standards (15A NCAC 02C .0113) and local county rules. [15A NCAC
02C .011, 02T .0108(b)(2)]
4. 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. [15A NCAC 02T .0105(d), 15A NCAC 02T.0106, and 15A NCAC 02T.0109]
II�aX1':703IIXTJWMEGI.�1I:\" INI717:
1. The subject non -discharge facilities shall be effectively maintained and operated at all times so 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 perfonm satisfactorily, including the creation of
nuisance conditions due to improper operation and maintenance, the Permittee shall take immediate
corrective actions including Division required actions, such as the construction of additional or
replacement wastewater treatment or recycle facilities. [15A NCAC 02T .0108(b)(1)]
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 02B .0200, 02L.0100]
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. [15A NCAC 02C.0108]
4. 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. [15A NCAC 02L .0106(4)(2), 02L
.0107(b)]
5. 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. [15A NCAC 02L
.0 106, 02L .0108]
WQ0005603 Version 3.0 Shell Version 150101 Page 2 of 6

6. The facilities permitted herein shall be constructed according to the following setbacks: [15A NCAC
02H .0200]
a. The setbacks for storage and treatment units permitted under 15A NCAC 02H .0200 shall be as
follows (all distances in feet):
i. Surface waters: 50
ii. Any well with the exception of a Division approved groundwater monitoring well: 100
iii. Any property line:
50
The location of the settling basin is historically acceptable.
III. OPERATION AND MAINTENANCE REQUIREMENTS
1. 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 .1007, which at a minimum shall include operational
functions, maintenance schedules, safety measures and a spill response plan. [15A NCAC 02T .1007]
2. Upon the Water Pollution Control System Operators Certification Connnission'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. [15A NCAC 02T .0117]
Public access to the wastewater treatment facilities and closed-loop recycle system shall be
prohibited. [ 15A NCAC 02T .1000(a)(1)]
4. The residuals generated from the wastewater treatment facilities shall be disposed or utilized iii
accordance with 15A NCAC 02T 1100. The Permittee shall maintain a residual management plan
pursuant to 15A NCAC 02T.1008. [15A NCAC 02T.1 100 & 15A NCAC 02T.1008]
5. Diversion or bypassing of untreated or partially treated wastewater from the treatment facilities is
prohibited. [15A NCAC 02T .05050)]
6. Freeboard in the ash settling pond shall not be less than two feet at any time. [15A NCAC 02T
.1005(b)(6)]
7. A gauge to monitor waste levels in the ash settling pond shall be provided. This gauge 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 .0108(b)(1)]
A protective vegetative cover shall be established and maintained on all earthen embankments (i.e.,
outside toe of embanlarrent to maximum allowable temporary storage elevation on the inside of the
embananent), beans, 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 embarilanent areas shall be kept mowed or otherwise controlled and accessible. [15A NCAC
02T .0108(b)(1)]
WQ0005603 Version 3.0 Shell Version 150101 Page 3 of 6

MONITORING r REPORTING REOURZEMENTS
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. [15A NCAC 02T .0108(c)]
A Division certified laboratory shall conduct all laboratory analyses for the required effluent,
groundwater or surface water parameters. [15A NCAC 02H .0800]
3. Freeboard (i.e., waste level to the lowest embankment elevation) in the ash settling pond shall be
measured to the nearest inch or tenth of a foot, and recorded monthly. 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. [15A NCAC 02T .0108(c)]
4. 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.
[15ANCAC 02T.0 1 08(b) (1)]
5. All new monitoring wells shall be sampled after construction and within 3 months prior to initiating
non -discharge disposal operations. Monitoring wells shall be sampled thereafter 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 2. [15A NCAC 02T .0105(m)]
6. For initial sampling of the new monitoring wells, the Permittee shall submit a Compliance
Monitoring Form (GW -59) and a Well Construction Record Form (GW -1) listing this permit number
and the appropriate monitoring well identification number. Initial Compliance Monitoring Forrns
(GW -59) without copies of the Well Construction Record Forms (GW -1) are deemed incomplete, and
may be returned to the Permittee without being processed. [15A NCAC 02T .0105(ni)]
7. 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
Nvorking 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
Infonnation Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[15A NCAC 02T.0 I 05(m)]
8. Noncompliance Notification:
The Pernlittee shall report by telephone to the Asheville Regional Office, telephone number (828)
296-4500, 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:
WQ0005603 Version 3.0 Shell Version 150101 Page 4 of 6

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.
Any emergency requiring immediate reporting (e.g., discharges to surface waters, imminent failure of
a storage structure, etc.) outside non -nal 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 Imowledge of the occurrence. This report shall outline the actions taken or
proposed to betaken to ensure the problem does not recur. [15A NCAC 02T .0105(1), 02T .0108(b)
(1)]
i►[.Y' �T ISI C�7►f.9
1. The Permittee shall provide adequate inspection and maintenance to ensure proper operation of the
wastewater treatment and recycle facilities. [15A NCAC 02T .0108(b)]
2. The Permittee or their designee shall inspect the wastewater treatment and recycle 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 Pennittee 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 .0108(b)]
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 recycle facilities
pennitted 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. [G.S. 143-21.5.3(a)(2)]
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 pennit, the Division approved plans and specifications, and other supporting
documentation. [15A NCAC 02T .0110]
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). [G.S. 143-21.5.1]
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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 unposed by other jurisdictional government agencies
(e.g., local, state, and federal). This permit does not supersede any future legislation regarding the
management or closure of non-utility coal ash surface impoundments. 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 General Permit NCGO10000; 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.
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. [15A NCAC
02T.0104]
6. The Permittee shall retain a set of Division approved plans and specifications for the life of the
facilities permitted herein. [15A NCAC 02T .0108(b)(1)]
7. The Perinittee shall maintain this permit until all permitted facilities herein are properly closed or
permitted under another permit issued by the appropriate permitting authority. [15A NCAC 02T
.01050)]
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.0110.
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. [15A NCAC 02T
.0105(e)(3)]
Permit issued this the 24th day of April 2015, effective June 1, 2015
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
J ��,
tS. J immerman, Director
ivisio of Water Resources
By Authority of the Environmental Management Commission
WQ0005603 Version 3.0 Shell Version 150101 Page 6 of 6

ATTAUHIVILEXY
Monitorm2 ells:
-10, MW -16 & MW -17
Permit Number: WQ0005603 Version: 3.0
i
GROUNDWATER CHARACTERISTICS
GROUNDWATER STANDARDS
MONITORING REQUIREMENTS
PCS Code
Parameter Description
Daily Maximum
Frequency Measurement
Sample Type
Footnotes
00410
Alkalinity, Total (as CaCO3)
mg/l
3 x year
Grab
7
00425
Alkalinity, Bicarbonate (as CaCO3)
mg/l
3 x year
Grab
7
00430
ACarbonate (as CaCO3)
mg/l
3 x year
Grab
7
01 105
Jlkalinity,
Aluminum, Total (as Al)
mg/I
3 x year
Grab
7
01097
Antimony, Total (as Sb)
1
ug/I
3 x year
Grab
7
01002
Asenie, Total (as As)
10
ug/I
3 x year
Grab
7
01007
Barium, Total (as Ba)
700
ug/l
3 x year
Grab
7
01012
Beryllium, Total (as Be)
4
ug/l
3 x year
Grab
7
01022
Bron, Total (as B)
700
ug/l
3 x year
Grab
7
01027
Cadmium, Total (as Cd)
2
ug/l
3 x year
Grab
7
00916
Calcium, Total (as Ca)
mg/l
3 x year
Grab
7
00680
Carbon, Total Organic (TOC)
mg/l
3 x year
Grab
6,7
00940
Chloride (as Cl)
250
mg/l
3 x year
Grab
7
01034
Chromium, Total (as Cr)
0.05
ug/l
3 x year
Grab
7
01037
Cobalt, Total (as Co)
1
ug/l
3 x year
Grab
7
01042
C pper, Total (as Cu)
1
mg/l
3 x year
Grab
7
01045
lr in, Total (as Fe).
300
ug/l
3 x year
Grab
7
01051
Lead, Total (as Pb)
15
ug/l
3 x year
Grab
7
00927
Magnesium, Total (as Mg)
mg/1
3 x year
Grab
7
01055
Manganese, Total (as Mn)
50
ug/1
3 x year
Grab
7
71900
Mercury, Total (as Hg)
1
ug/l
3 x year
Grab
7
01062
Molybdenum, Total (as Mo)
mg/l
3 x year
Grab
7
01067
Nickel, Total (as Ni)
0.1
ug/l
3 x year
Grab
7
00300
Oxygen, Dissolved (DO)
mg/l
3 x year
Field
7
00400
pq1
6.5-8.5
s.u.
3 x year
Field
7
WQ0005603 Version 3.0 Attachment C Page 1 of 3

00665
Phosphorous, Total (as P)
mg/I
3 x year
Grab
7
00937
Potassium, Total (as K).
mg/1
3 x year
Grab
7
01147
Selenium, Total (as Se)
20
ug/1
3 x year
Grab
7
00929
Sodium, Total (as Na)
mg/1
3 x year
Grab
7
70300
Solids, Total Dissolved— 180 Deg. C:
500
mg/I
3 x year
Grab
7
00095
Specific Conductance
umho/cm
3 x year
Field
7
01082
Strontium, Total (as Sr)
mg/I
3 x year
Grab
7
00945
Sulfate, Total (as SO4)
250
mg/1
3 x year
Grab
7
00010
Temperature
Celsius
3 x year
Field
7
01059
Thallium, Total (as Tl)
0.2
ug/I
3 x year
Grab
7
01087
Vanadium, Total )as V)
0.3
ug/1
3 x year
Grab
7
00070
Turbidity
NTU
3 x year
Grab
7
78732
Volatile Compounds (GUMS)
Yes/No
Annually in December
Grab
4, 5, 7
01092
Zinc, Total (as Zn)
1
mg/I
3 x year
Grab
7
82546
Water Level, distance from measuring point
ft
3 x year
Calculated
1. 3-x Year monitoring shall be conducted in April, August & December.
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 shat l 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. Volatile Organic Compounds (VOC) - In December only, analyze by one of the following methods:
a. Standard Method 6230D, PQL at 0.5 gg/L or less
b. Standard Method 6210D, PQL at 0.5 µg/L or less
C. EPA Method 8021, Low Concentration, PQL at 0.5 gg/L or less
d. EPA Method 8260, Low Concentration, PQL at 0.5 gg/L or less
e. Another method with prior approval by the Water Quality Permitting Section Chief
Any method used must meet the.following qualifications:
a. A laboratory must be DWR 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 DWR. Any constituents detected above the MDL but below
the PQL of 0.5 gg/L must be 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 Asheville Regional Office supervisor, telephone number. [phone],
must be contacted immediately for further instructions regarding any additional follow-up analyses required.
WQ0005603 Version 3.0 Attachment C Page 2 of 3

6. If TOC col
comprising
TOC conce
7. Monitoring
Note- C
may su
no case
nitrations greater than 10 mg/L are detected in any downgradient monitoring well, additional sampling and analysis must be conducted to identify the individual constituents
is 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
•ation. Any exceedances of this naturally occurring TOC concentration in the downgradient wells shall be subject to the additional sampling and analysis as described above.
shall be reported consistent with the nomenclature and location information provided in Figure 2 and this attachment.
the groundwater monitoring has been performed for two years at the frequency specified in Attachment C, the Permittee
a permit modification request to reduce the number of analytes and/or frequency of the stated monitoring requirements. In
the monitoring frequency be less than once per permit cycle.
WQ0005603 Version 3.0 Attaclunent C
Page 3 of 3

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