WQ0002378_Final Permit_20210226

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH
Director
NORTH CAROLINA
Environmental Quality
February 26, 2021
JAmES A. LEVIS — WWTP MANAGER
TOWN OF MOORESVILLE
POST OFFICE BOX 878
MOORESVILLE, NORTH CAROLINA 28115-0878
Subject: Permit No. WQ0002378
Town of Mooresville SDU
Surface Disposal of Residuals
Iredell County
Dear Mr. Levis:
In accordance with your permit renewal request received December 4, 2020, we are forwarding
herewith Permit No. WQ0002378 dated February 26, 2021, to the Town of Mooresville for the continued
operation of the subject residuals management program. Please note that this renewed permit shall become
effective on June 1, 2021 (i.e., the day after the expiration date of the existing permit).
This permit shall be effective from June 1, 2021 through May 31, 2027, shall void Permit No.
WQ0002378 issued June 27, 2016, and shall be subject to the conditions and limitations as specified therein.
The Permittee shall submit a renewal application no later than December 2, 2026.
Please pay particular attention to the monitoring requirements listed in Attachments A 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.
Please note that on September 1, 2018, North Carolina Administrative Code Title 15A Subchapter
02T — Waste not Discharged to Surface Waters was readopted. Accordingly, this permit incorporates the
requirements of these rules, therefore, please take the time to review this permit thoroughly.
The Division has removed the following permit conditions since the last permit issuance dated
June 27, 2016:
➢ Old Condition IIL7. — This condition has been removed because this permit is not voidable.
➢ Old Condition IV.5. —Methane gas monitoring has been removed from the permit's monitoring
requirements.
➢ Old Condition VL2. — This condition has been removed because this permit is not voidable.
The following permit conditions are new since the last permit issuance dated June 27, 2016:
➢ Condition IL4. — The setbacks for the surface disposal units have been added back to the permit.
While the site is in closure activities, the site still shall meet setbacks until post -closure
activities are complete.
D E QJ� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1617 Mail Service Center j Raleigh, North Carolina 27699-1617
oaos'� a�i of E� ,anmo�i o aia\ 919.707.9000

Mr. James A. Levis
February 26, 2021
Page 2 of 2
➢ Condition IIL3. — Upon the Water Pollution Control System Operators Certification
Commission's (WPCSOCC) classification of the residuals management program, the Permittee
shall designate and employ a certified operator in responsible charge (ORC). At this time, no
operator is required for this facility.
➢ Condition IIL6. — The surface disposal sites shall meet the requirements specified by 40 CFR
503.24(a) as stated on January 1, 1996.
➢ Condition IIL7. — The surface disposal sites shall not cause nuisance conditions.
➢ Condition IIL8. — The surface disposal sites shall not cause contravention of surface water or
groundwater standards.
➢ Condition IIL 11. —Animals shall not be allowed to graze on surface disposal units.
➢ Condition IIL 12. —Food crops, feed crops, and fiber crops shall not be harvested from surface
disposal units.
➢ Condition VL6. —The Permittee shall retain a set of Division -approved plans and specifications
for the life of the facilities permitted herein.
➢ Condition VL7. — 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.
➢ Condition VL 10. —This permit shall not be renewed if the Permittee or any affiliation has not
paid the required annual fee.
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 Erick Saunders at (919)
707-3659 or erickson.saunders&ncdenr.gov.
Sincerely,
S. Daniel Smith, Director
Division of Water Resources
cc: Iredell County Health Department (Electronic Copy)
Mooresville 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
SURFACE DISPOSAL OF RESIDUALS 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 Mooresville
Iredell County
FOR THE
continued operation of a residuals management program for the Town of Mooresville that is undergoing a
closure and post -closure management program that includes groundwater monitoring, and consisting of the
landfilling of Class B residuals from the surface disposal units (inactive since December 31, 2001) listed in
Attachment A to the approved landfilling sites listed in Attachment B, with no discharge of wastes to surface
waters, pursuant to the application received December 4, 2020, and in conformity with other supporting
data subsequently filed and approved by the Department of Environmental Quality and considered a part
of this permit. The disposal of residuals is regulated under Title 40 Code of Federal Regulations Part 503.
This permit does not exempt the Permittee from complying with Federal Regulation 40 CFR Part 503.
This permit shall be effective from June 1, 2021 through May 31, 2027, shall void Permit No. WQ0002378
issued June 27, 2016, and shall be subject to the following conditions and limitations:
I. SCHEDULES
1. Upon completion of the reclamation of the surface disposal units and prior to the removal of public
access control devices, the Mooresville Regional Office, telephone number [phone], shall be
notified. Such notification of the regional supervisor shall be made during the normal office hour from
8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays. [G.S. 143-215.3.(a)]
2. The Permittee shall request renewal of this permit on Division -approved forms no later than December
2, 2026. [15A NCAC 02T .0105(b), 02T .0109]
II. PERFORMANCE STANDARDS
The Permittee shall maintain and operate the subject residuals management program so there is no
discharge to surface waters, nor any contravention of groundwater or surface water standards. In the
event the residuals management program fails to perform satisfactorily, including the creation of
nuisance conditions due to improper operation and maintenance, the Permittee shall immediately cease
surface disposing residuals, take immediate corrective actions, and contact the Mooresville Regional
Office supervisor. [15A NCAC 02T .0108(b)(1)(A)]
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2. This permit shall not relieve the Permittee of their responsibility for damages to groundwater or surface
water resulting from the operation of this residuals management program. [15A NCAC 02T
.0108(b)(1)(A)]
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. The facilities herein were permitted per the following setbacks:
a. The surface disposal sites were originally permitted May 8, 1990. The setbacks for surface disposal
sites originally permitted or modified from October 1, 1987 to January 31, 1993 are as follows (all
distances in feet):
I. Each habitable residence or place of assembly under separate ownership: 400 1
ii. Each private or public water supply source: 100
iii. Surface waters: 100
iv. Groundwater lowering ditches: 100
v. Surface water diversions (upslope): 100
vi. Surface water diversions (downslope):
100
vii. Each well with exception of monitoring wells:
100
viii. Each property line:
1002
ix. Top of slope of embankments or cuts of two feet or more in vertical height:
100
x. Each water line:
10
xi. Each swimming pool:
100
xii. Public right of way:
50
xiii. Nitrification field:
20
xiv. Each building foundation or basement:
100
' Habitable residences or places of assembly under separate ownership constructed after the
facilities herein were originally permitted or subsequently modified are exempt from this
setback.
2 Setbacks to property lines are not applicable when the Permittee, or the entity from which the
Permittee is leasing, owns both parcels separated by the property line.
[15A NCAC 02H .02190)(5)]
Surface disposal sites permitted on or after December 30, 1983 have a compliance boundary that is
either 250 feet from the surface disposal area, or 50 feet within the property boundary, whichever is
closest to the surface 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(d)(2), 02L .0107(b), 02T .0105(h),
G.S. 143-215.1(1), G.S. 143-215.1(k)]
6. The review boundary is midway between the compliance boundary and the surface 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]
7. 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]
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8. No residuals shall be approved for disposal in the surface disposal units. [15A NCAC 02T
.0108(b)(1)(A)]
III. OPERATION AND MAINTENANCE REQUIREMENTS
1. The Permittee shall operate and maintain the residuals management program as anon -discharge system.
[15A NCAC 02T .1100]
2. The Permittee shall maintain a Division -approved Operation and Maintenance Plan that shall include:
a. Description of the program, and associated facilities and equipment, in sufficient detail to show
what operations are necessary for the program to function and by whom the functions are to be
conducted;
b. Description of anticipated maintenance of facilities and equipment associated with the program;
c. Include provisions for safety measures, including restriction of access to sites and equipment;
d. Spill control provisions:
I. Response to upsets and bypasses including control, containment, and remediation; and
ii. Contact information for plant personnel, emergency responders, and regulatory agencies;
e. Detailed sampling and monitoring procedures:
I. Names or titles of personnel responsible for conducting sampling and monitoring;
ii. Description of monitoring procedures including parameters to be monitored; and
iii. Sampling frequency and procedures to assure that representative samples are collected.
Fluctuation in temperature, flow, and other operating conditions can affect the quality of the
residuals gathered during a particular sampling event. The sampling plan shall account for any
foreseen fluctuations in residuals quality and indicate the most limiting times for residuals to
meet pathogen and vector attraction reduction requirements.
f Detailed procedures for post -closure care management.
[15A NCAC 02T. I I I0(a)]
3. Upon the Water Pollution Control System Operators Certification Commission's (WPCSOCC)
classification of the residuals management program, 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 visit the facilities in accordance with 15A NCAC 08G 0204 and shall
comply with all other requirement in 15A NCAC 08G 0204. [15A NCAC 02T .0117, 08G .0204]
4. The Permittee shall ensure that a copy of this permit and the post closure management program Plan is
available onsite for the life of this permit. [ 15A NCAC 02T .1 110(b)]Measures shall betaken to prevent
wind erosion from residual surface disposal sites. [15A NCAC 02T .0108(b)(1)(A)]
5. The surface disposal sites shall meet the requirements specified by 40 CFR 503.24(a) as stated on
January 1, 1996. [15A NCAC 02T .I 109(d)(2)(A)]
6. The surface disposal sites shall not cause nuisance conditions. [15A NCAC 02T .1109(d)(2)(B)]
7. The surface disposal sites shall not cause contravention of surface water or groundwater standards.
[15A NCAC 02T .1109(d)(2)(C)]
8. Runoff from a 24-hour 25-year storm event, decant water, and leachate shall be collected from surface
disposal units. [15A NCAC 02T .1109(d)(2)(D)]
9. Public access to surface disposal units shall be restricted continuously. [15A NCAC 02T
.1109(d)(2)(G)]
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10. Animals shall not be allowed to graze on surface disposal units. [15A NCAC 02T .1109(d)(2)(11)]
11. Food crops, feed crops, and fiber crops shall not be harvested from surface disposal units. [15A NCAC
02T .1109(d)(2)(1)]
12. Following active use, surface disposal units shall be closed. Permits for surface disposal units shall be
maintained for three years following successful closure. [15A NCAC 02T .1109(d)(3)]
IV. MONITORING AND REPORTING REQUIREMENTS
The Permittee shall conduct and report any Division required monitoring necessary to evaluate this
program's impact on groundwater and surface water. [15A NCAC 02T .0108(c)]
2. The residuals from each source generating facility shall be analyzed to demonstrate they are non-
hazardous under the Resource Conservation and Recovery Act (RCRA). Residuals that test or are
classified as a hazardous or toxic waste under 40 CFR Part 261 shall not be surface disposed. The
analyses (i.e., corrosivity, ignitability, reactivity, and toxicity characteristic leaching procedure
(TCLP)) shall be performed at the frequency specified in Attachment A, and the Permittee shall
maintain these results for five years. Any exemptions from the requirements in this condition shall be
specified in Attachment A. The TCLP analysis shall include the following parameters, and the Federal
regulatory level (mg/L) is in parentheses:
Arsenic (5.0)
1,4-Dichlorobenzene (7.5)
Nitrobenzene (2.0)
Barium (100.0)
1,2-Dichloroethane (0.5)
Pentachlorophenol (100.0)
Benzene (0.5)
1,1-Dichloroethylene (0.7)
Pyridine (5.0)
Cadmium (1.0)
2,4-Dinitrotoluene (0.13)
Selenium (1.0)
Carbon tetrachloride (0.5)
Endrin (0.02)
Silver (5.0)
Chlordane (0.03)
Heptachlor (and its epoxide)
(0.008)
Tetrachloroethylene (0.7)
Chlorobenzene (100.0)
Hexachlorobenzene (0.13)
Toxaphene (0.5)
Chloroform (6.0)
Hexachlorobutadiene (0.5)
Trichloroethylene (0.5)
Chromium (5.0)
Hexachloroethane (3.0)
2,4,5-Trichlorophenol (400.0)
m-Cresol (200.0)
Lead (5.0)
2,4,6-Trichlorophenol (2.0)
o-Cresol (200.0)
Lindane (0.4)
2,4,5-TP (Silvex) (1.0)
p-Cresol (200.0)
Mercury (0.2)
Vinyl chloride (0.2)
Cresol (200.0)
Methoxychlor (10.0)
2,4-D (10.0)
Methyl ethyl ketone (200.0)
[15A NCAC 13A .0102(b), 02T. 1111, 02T. 1105]
3. Monitoring wells MW-1, MW-2, MW-3, MW-4, MW-5, MW-6, MW-7, MW-8, MW-9, and MW-10
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)]
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4. 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)]
The Permittee shall maintain records for all residual surface disposal events. These records shall
include the following:
a. Residuals source (as listed in Attachment A);
b. Date of surface disposal; and
c. Volume of residuals disposed per acre in gallons, cubic yards, dry tons, or wet tons.
[15A NCAC 02T .0108(c)]
6. One hard copy and one electronic copy of an annual report shall be submitted on or before March 1st
The annual report shall meet the requirements described in the Instructions for Residuals Application
Annual Reporting Forms. Instructions for reporting and annual report forms are available at
hLtp:Hdeg .nc. gov/about/divisions/water-resources/water-resources-permits/wastewater-branch/non-
discharge-permitting-unit/reportin -fg orms, or can be obtained by contacting the Non -Discharge Branch
directly. The annual report 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 .1I I1(d)]
7. Noncompliance Notification
The Permittee shall report to the Mooresville Regional Office, telephone number [phone],
within 24 hours of first knowledge of the:
a. Any process unit failure (e.g., mechanical, electrical, etc.) rendering the facility incapable of
adequate residual treatment.
b. Any failure resulting in a discharge to surface waters.
c. Any time self -monitoring indicates the program has gone out of compliance with its permit
limitations.
d. Surface disposal of residuals abnormal in quantity or characteristic.
e. Any discharge from a vehicle or piping system transporting residuals.
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 REGION 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 storage and
surface disposal facilities. [15A NCAC 02T .1110(f)]
2. The Permittee shall inspect the residuals surface 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 inspection,
and this log shall be made available to the Division upon request. [15A NCAC 02T .0108(b)(1)(A),
02T .I I I0(f)]
Division authorized representatives may, upon presentation of credentials, enter and inspect any
property, premises, or place related to the surface disposal sites or 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. 143-215.1(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)]
If the permitted residuals program 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. 143-215.6B, or under Federal law that would otherwise be
prosecuted under G.S. 143-215.6B, 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.
[15A NCAC 02T .0120(c)]
Permit issued this the 26"' day of February 2021
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
S. Daniel Smith, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Permit Number WQ0002378
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ATTACHMENT A — APPROVED RESIDUAL SOURCES
Town of Mooresville
Certification Date: February 26, 2021
Permit Number: WQ0002378 Version: 4.0
Monitoring
Monitoring
Monitoring
Permit
Biological
Maximum
Frequency for
Frequency for
Frequency for
Approved
Owner
Facility Name
County
Number
Residuals
Dry Tons
Non-hazardou
Metals and
Pathogen &
Mineralization
per Year'
Characteristics z
Nutrients
Vector Attraction
Rate
Reductions
Town of Mooresville
Rocky River WWTP
Iredell
NCO046728
Yes
700
Once every two
N/A
N/A
N/A
ears
Total
700
1. Maximum Dry Tons per Year is the amount of residuals approved for surface disposal from each permitted facility.
2. Analyses to demonstrate that residuals are non -hazardous (i.e., TCLP, ignitability, reactivity, and corrosivity) as stipulated under permit Condition IV.2.
WQ0002378 Version 4.0 Attachment A Page 1 of 1

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ATTACHMENT B — APPROVED SURFACE DISPOSAL SITES
Town of Mooresville — Town of Mooresville SDU
Certification Date: February 26, 2021
Permit Number: WQ0002378 Version: 4.0
Owner
Lessee
County
Permit
Maximum Dry Tons
Explanation
Number
per Year
Browning -Farris Industries
BFI CMS Concord Landfill
Cabarrus
NC-12-04
1,100
Residuals are removed from the Town of Mooresville SDU to this facility
as a part of the closeout strategy.
Total
1,110
WQ0002378 Version 4.0 Attachment B Page 1 of 1

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ATTACHMENT C — Groundwater Monitoring and Limitations
Monitoring Wells: MW-1, MW-2, MW-3, MW-4, MW-5, MW-6, MW-7, MW-8, MW-9, and MW-10
Permit Number: WQ0002378 Version: 4.0
GROUNDWATER CHARACTERISTICS
GROUNDWATER STANDARDS
MONITORING REQUIREMENTS
PCS Code
Parameter Description
Daily Maximum
Frequency Measurement
Sample Type
Footnotes
01034
Chromium, Total (as Cr)
10
µg/L
2 x Year
Grab
1
31616
Coliform, Fecal MF, M-FC Broth, 44.5 °C
#/100 mL
2 x Year
Grab
1
01042
Copper, Total (as Cu)
1
mg/L
2 x Year
Grab
1
01051
Lead, Total (as Pb)
15
µg/L
2 x Year
Grab
1
00620
Nitrogen, Nitrate Total (as N)
10
mg/L
2 x Year
Grab
1
46480
Oxidation Reduction Potential
milli -volts
2 x Year
Grab
1
00300
Oxygen, Dissolved (DO)
mg/L
2 x Year
Grab
1
00400
pH
6.5-8.5
su
2 x Year
Grab
1,2
70300
Solids, Total Dissolved - 180 °C
500
mg/L
2 x Year
Grab
1
00095
Specific Conductance
umhos/cm
2 x Year
Grab
1
00010
Temperature
°C
2 x Year
Grab
1
GWVOC
Volatile Compounds (GW)
Present: Yes/No
Annually
Grab
1, 4, 5
82546
Water Level, Distance from measuring point
feet
2 x Year
Calculated
1, 2, 3
01092
Zinc, Total (as Zn)
1
mg/L
2 x Year
Grab
1
1. 2 x Year sampling shall be conducted in May and November; Annual sampling shall be conducted in November.
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.
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.
WQ0002378 Version 4.0 Attachment C Page 1 of 2

ATTACHMENT C — Groundwater Monitoring and Limitations Permit Number: WQ0002378 Version: 4.0
Monitoring Wells: MW-1, MW-2, MW-3, MW-4, MW-5, MW-6, MW-7, MW-8, MW-9, and MW-10
4. Volatile Organic Compounds (VOC) - In November only, analyze by one of the following methods:
a. Standard Method 623OD, PQL at 0.5 �tg/L or less
b. Standard Method 621 OD, PQL at 0.5 gg/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 shall meet the following qualifications:
a. A laboratory shall be DWR certified to run any method used.
b. The method used shall include all the constituents listed in Table VIII of Standard Method 6230D.
c. The method used shall provide a PQL of 0.5 �tg/L or less that shall be supported by laboratory proficiency studies as required by the DWR Laboratory Certification Unit. Any constituents
detected above the MDL but below the PQL of 0.5 �tg/L shall 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 Mooresville Regional Office supervisor, telephone number [phone],
shall be contacted immediately for further instructions regarding any additional follow-up analyses required.
6. 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.
7. Monitoring wells shall be reported consistent with the nomenclature and location information provided in Figure 1 and this attachment.
WQ0002378 Version 4.0 Attachment C Page 2 of 2

NOTE: WELL LOCATIONS TRANSFERRED FROM SURVEYED WELL LOCATIONS
ON 'TOWN OF MOORESVILLE, NC, MONITORNG WELLS" DRAWING
LEGEND PREPARED BY iem DATED 1/2016
wi
u�
EXISTING MONITORING WELL
PROPOSED MONITORING WELL.
`--- - — WWTP PROPERTY LINE
`� WATER FEATURE
4AERIAL BASE MAP FROM IREDELL COUNTY GIS.
MONITORNG WELL LOCATIONS
Rocky River WWTP -Surface Disposal Site
Non -Discharge Permit No. WQ00002378
30 0 so 369 Johnson Dairy Road
Mooresville, Iredell County, North Carolina
Scale: 7 inch = So ft. Date: 2-4.16 Prepared By: Cry
Contour Interval = 4 ft. Scale: AS SHOWN FIGURE 2