WQ0015053_Final Permit_20141024

A*�A
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Resources
Pat McCrory
Governor
October 24, 2014
William Nash, Utilities Superintendent
Currituck County
153 Courthouse Road, Suite 101
Currituck, North Carolina 27929
Dear Mr. Nash:
John E. Skvarla, ill
Secretary
Subject: Permit No. WQ0015053
Moyock Commons Shopping
Center and Currituck
Commercial Center
High -Rate Infiltration System
Currituck County
In accordance with your permit minor modification request received May 15, 2013, we are
forwarding herewith Permit No. WQ0015053 dated October 22, 2014, to Currituck County for the
continued operation of the subject wastewater treatment and high -rate infiltration facilities.
The modifications to the subject permit are to suspend monitoring and reporting requirements
during plant inactivity. New Condition I.1, 2, &3 and modifications to Attachment A address necessary
changes to the monitoring, reporting and operator visitation requirements during plant inactivity.
This permit shall be effective from the date of issuance until December 31, 2016, and shall void
Permit No. WQ0015053 issued December 10, 2010 and shall be subject to the conditions and limitations
as specified therein_ Please pay particular attention to the monitoring requirements listed in Attachments
A, B 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.
If any parts, requirements or Iimitations contained in this permit are unacceptable, the Perrnittee
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 156B 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.
1636 Mail Service Center, Raleigh, North Carolina 27699-1636
Phone: 91IM07.646411ntertret: htto:lloortal,ncdenr,orglweblwo
An Equal Opportunity 1 Affirmative Action Employer— Made in part with recycled paper

Mr. Nash
October 24, 2014
Page 2 of 2
If you need additional information concerning this permit, please contact Alice M. Wessner at
[phone] or alice.wessner@ncdenr_gov.
Sincerely,
/ Thomas A. Reeder
cc: Currituck County Health Department (Electronic Copy)
Washington Regional Office, Water Quality Regional Operations Section (Electronic Copy)
Central Files
Digital Permit Archive (Electronic Copy)

NORTH CAROLINA
ENVIRONNVIENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
HIGH -RATE INFILTRATION 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
Currituck County
Currituck County
FOR THE
continued operation of a 40,000-GPD wastewater collection, treatment and high rate infiltration disposal
system.
The wastewater collection system consists of approximately 2,625 linear feet of 8-inch gravity sewer and
an 80-GPM pump station with dual pumps, high water alarms, and approximately 815 linear feet of 4-
inch force main.
The 40,000-GPD extended aeration wastewater treatment plant consists of a continuous monitoring flow
recorder, a 10,000-gallon equalization basin with two 28-GPM pumps, a manually cleaned bar screen,
flow splitter box, two 20,029-gallon coarse bubble aeration basins, two 8,390-gallon clarifiers, a 3,938-
gallon aerated sludge holding tank, two 206-CFM blowers, dual bed tertiary filters (each filter measuring
fourteen square feet), a tablet chlorinator with an l,l 11-gallon chlorine contact chamber, a 2,500-gallon
effluent dosing tank with two 90-GPM pumps and high water alarms, and a stand-by generator with
automatic transfer switch to serve the WWTP and collection system pump station.
The high -rate wastewater disposal system consists of two 27,500-square-foot infiltration basins.
The wastewater collection, treatment and high rate infiltration disposal system will serve the Moyock
Commons Shopping Center and Currituck Commercial Center with no discharge of wastes to the surface
waters, pursuant to the application received through our Washington Regional office on May 15, 2013,
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 December 31, 2016 shall void Permit No.
WQ0015053 issued December 10, 2010 and shall be subject to the following specified conditions and
limitations:
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I. SCHEDULES
1. Prior to the subject permitted facility accepting wastewater, the Permittee shall contact the
Washington Regional Office at telephone number [phone] such that an in -place inspection can
be conducted. 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.
2. Monitoring and reporting requirements established in Conditions IV.3, 4, 5, 7, 10, & 11 have been
temporarily suspended. Upon accepting wastewater, monitoring and reporting requirements
established in Conditions 1V.3, 4, 5, 7, 10, & It shall be met. Note that weekly freeboard
measurement and recording requirements in Condition IV.6 and weekly testing requirement of the
alternate power supply outlined in Condition 111. 4 have not been suspended.
3. Upon accepting wastewater, wastewater operator requirements established in Condition 111.3 shall be
met. Prior to the accepting wastewater, the operator shall visit the facility not less than weekly.
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.
In accordance with 15A NCAC 02H .0404(e), if the subject wastewater treatment or infiltration
facilities are in noncompliance with the terms and conditions of this permit, governing statutes or
regulations, the subject facilities shall be connected to an operational publicly owned wastewater
collection system within 180 days of its availability. Prior to the initiation of these connection
activities, appropriate Division approval shall be received.
U. 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 infiltration 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 infiltration 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 map of the sewer system shall be developed and actively maintained.
c. An operation and maintenance plan shall be developed, implemented and maintained.
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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.
c. 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 Washington 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.
i. Right-of-ways and casements shall be maintained.
j. Inspection and maintenance records for Conditions II.4.a. through II.4.i. shall be maintained for a
period of at least three years, except for Conditions 11.4.b. and 11.4.c., which shall be maintained
for the life of the system.
5. Effluent quality shall not exceed the limitations specified in Attachment A.
6. Application rates, whether hydraulic, nutrient or other pollutant, shall not exceed those specified in
Attachment B.
7. A usable green area shall be maintained for effluent disposal. The green area shall have the capability
of accommodating the facility's average daily flow without exceeding the green area loading rates.
As defined in 15A NCAC 02H .0404(g)(7), a "green area" is an area suitable for waste disposal,
either in its natural state or which has been modified by planting a vegetative cover of grasses or low
growing shrubbery.
8. 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.
9. 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.
10. 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.
11. In accordance with 15A NCAC 02L .0107(d), no wells, excluding Division approved monitoring
wells, shall be constructed within the compliance boundary except as provided for in 15A NCAC 02L
.0107(g).
12. 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
Currituck 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.
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13. The facilities permitted herein shall be constructed according to the following setbacks:
a. The setbacks for high -rate infiltration sites permitted under 15A NCAC 02T .0700 shall be as
follows (all distances in feet):
i. Any habitable residence or place of public assembly owned under separate
200
ownership:
I Any private or public water supply source or any streams classified as WS or B:
100
iii. Any "SA" or "SB" classified surface waters (mean high water):
100
iv. Any other stream, canal, marsh, coastal waters, Class I or Class II impounded
100
reservoir used as a source of drinking water, or any other lake or impoundment
(normal high water):
v. Groundwater lowering ditches:
50
vi. Surface water diversions:
25
vii. Any well with exception of monitoring wells:
100
viii. Any property line:
50
ix. Top of slope of embankments or cuts of two feet or more in vertical height:
15
x. Any water line from a disposal system:
10
xi. Subsurface groundwater lowering drainage systems:
100
xii. Any swimming pool:
100
xiii. Public right of way:
50
xiv. Nitrification field:
20
xv, Any building foundation or basement:
15
b. The setbacks for storage and treatment units permitted under 15A NCAC 02T .0700 shall be as
follows (all distances in feet):
i. Surface waters: 50
ii. Any well with exception of monitoring wells: 100
iii. Any property line: 50
III. OPERATION AND MAINTENANCE RE-011MEMENTS
I. 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 .0707, which at a minimum shall include operational
functions, maintenance schedules, safety measures and a spill response plan.
2. 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.
3. Only effluent from Moyock Commons Shopping Center and Currituck Commercial Center shall be
infiltrated on the sites listed in Attachment B.
4. An automatically activated standby power source capable of powering all essential treatment units
shall be on site and operational at all times. If a generator is employed as an alternate power supply,
it shall be tested weekly by interrupting the primary power source_
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5. No automobiles or machinery shall be allowed on the infiltration sites except during equipment
installation or while maintenance is being performed.
6. Public access to the infiltration sites and wastewater treatment facilities shall be prohibited.
7. The residuals generated from the wastewater treatment facilities shall be disposed or utilized in
accordance with 15A NCAC 02T .1100. The Permittee shall maintain a residual management plan
pursuant to 15A NCAC 02T .0708.
8. Diversion or bypassing of untreated or partially treated wastewater from the treatment facilities is
prohibited.
9. Freeboard in the two infiltration basins shall not be less than two feet at any time.
10. A gauge to monitor waste levels in the infiltration basin 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.
11. The vegetative growth must be kept out of the infiltration basin areas at all times. All vegetation must
be removed manually so that minimal disturbance will occur to the disposal area.
12. Application of chemicals to the distribution field(s) is expressly prohibited.
13. The chlorine tablets used in the disinfection facility shall be the kind and type specified in the plans
and specifications approved by the Division.
14. If nitrogen concentration levels in the drainage ditches contribute to water quality stream standards
contraventions, additional denitrification units may be required.
15. The infiltration basin(s) shall be periodically dredged to remove deposited materials that may impede
the infiltration process. Dredging 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. The Washington Regional
Office's Aquifer Protection Section, telephone number [phone], shall be notified prior to
dredging.
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.
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,
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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 infiltrated. At a
minimum, these records shall include the following information for each infiltration site listed in
Attachment B:
a. Date of infiltration;
b. Volume of effluent infiltrated;
c. Loading rates to each infiltration site listed in Attachment B;
6. Freeboard (i.e_, waste level to the lowest embankment elevation) in the infiltration basins shall be
measured to the nearest inch or tenth of a foot, and 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.
7. Three copies of all monitoring data (as specified in Conditions fV3. and IVA.) on Form NDMR for
each PPI and three copies of all operation and disposal records (as specified in Conditions N_5. and
fV.6.) on Form NDAR-2 for every site in Attachment B shall be submitted on or before the last day of
the following month. If no activities occurred during the monitoring month, monitoring reports are
still required documenting the absence of the activity. All information shall be submitted to the
following address:
Division of Water Resources
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
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.
9. A maintenance log shall be maintained at this facility. This log shall be maintained at the facility for
a period of no Iess than five years, and shall be made available to the Division upon request. At a
minimum, this log shall include:
a_ Date and results of power interruption testing on alternate power supply;
b. Date of calibration of flow measurement device;
c. Visual observations of the plant and plant site; and
d. Record of preventative maintenance (e.g., changing of equipment, adjustments, testing,
inspections and cleanings, etc.)_
10. 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 provide_ d in
Attachment C.
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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 Iaboratory 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
12. Noncompliance Notification:
The Permittee shall report by telephone to the Washington Regional Office, telephone number (252)
946-6481, 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. Effluent breakout from the infiltration basin(s).
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.
V. INSPECTIONS
1. The Permittee shall provide adequate inspection and maintenance to ensure proper operation of the
wastewater treatment and infiltration facilities.
2. The Permittee or their designee shall inspect the wastewater treatment and infiltration 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 infiltration 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
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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. In accordance with 15A NCAC 02T .0114(f) and pursuant to the flow reduction request received for
the Newtown Sanitary District on July 6, 2009, by the Pretreatment, Emergency Response and
Collection System Unit and approved August 7, 2009, the Division accepts the data -based design
flow rate of 89 gallons per day per bedroom (GPDIb) for the users served by this facility. Regardless
of the adjusted daily wastewater design flow rate, at no time shall wastewater flows exceed the limits
defined in this permit for the subject facility, or exceed the sewer capacity downstream of any new
sewer extension or service connection(s).
The Permittee shall report the actual (i.e., measured) monthly average amount of wastewater flow
contributed per unit (GPDfb) for the 12 months prior to permit renewal. If any of these actual
monthly averages are within 20% of the 10,675 GPD, the Permittee shall re-evaluate the approved
value using the methodology applied to determine the approved flow rate of 89 GPDB, and submit
this information within 18 months of November 13, 2009. The Division may change the daily
wastewater design flow rate for connections to the system at that time, and upon each renewal cycle,
pending an evaluation of the submitted flow information.
S. In accordance with 15A NCAC 02T .0114(f)(4), the Permittee shall retain the Division's written
approval of any authorized adjusted daily design flow rate for the life of the facility, and shall transfer
said written approval to any future Permittee.
6. 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 I5A NCAC Chapter 4
and under the Division's General Permit NCG010000; any requirements pertaining to wetlands under
I SA NCAC 02B .0200 and 02H .0500; and documentation of compliance with Article 21 Part 6 of
Chapter 143 of the General Statutes.
7. 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.
8. The Permittee shall retain a set of Division approved plans and specifications for the life of the
facilities permitted herein_
9. 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 I5A NCAC
02T .01050).
10. 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 I5A NCAC 02T .0110.
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11. 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).
12. 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 24"' day of October 2014
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Thr as A. eder, Director
Division o Water Resources
By Authority of the Environmental Management Commission
Permit Number WQ0015053
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ATTACHMENT A - LIMITATIONS AND MONITORING REQUIREMENTS
Moyock Commons Shopping Center and Currituck Commercial Center
PPI 002 -- WWTF Effluent
Permit Number: WQ0015053 Version: 3.3
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING REQUIREMENTS
PCs
Code
parameter Description
Units of
Measure
Monthly Average
Monthly Geometric Mean
Daily Minimum
Daily Maximum
Measurement
Frequency
Sample
Type
00310
BOD, 5-day (20 Deg. C)
mg/L
15
Monthly
Composite
00530
Solids, Total Suspended
mg/L
30
Monthly
Composite
70300
Solids, Total Dissolved (180 Deg. C)
mg/L
3 x year'
Composite
00610
Nitrogen, Ammonia Total (as N)
mg/L
4
Monthly
Composite
00620
Nitrogen, Nitrate Total (as N)
mg/L
Monthly
Composite
00940
Chloride (as Cl)
mg/L
3 x year'
Composite
31616
Coliform, Fecal MF, M-FC Broth, 44.5C
#/100m1
200
Monthly
Grab
50060
Chlorine, Residual—
mg/L
mg/L
5 x week
Grab
00400
pH
s.u.
5 x week
Grab
50050
Flow, in conduit or thru treatment plant
GPD
40,000
Continuous
Recorder
1. 3 x year monitoring shall be conducted in April, August and November.
There shall be no discharge of floating solids or visible foam in more than trace amounts.
2. Monthly average flow under normal operation
3. Monthly average flow under shut down
PPI 003 and 004 — Drainage Ditches at Sample Points DD-1 and DD-2
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORINGREQUIREMENTS
PCs
Code
Parameter Description
Monthly Average
Monthly Geometric
Mean
Daily Minimum
Daily Maximum
Measurement
Frequency
Sample
Type
00610
Nitrogen, Ammonia Total (as N)
mg/L
3 x year
Grab
00600
Nitrogen, Total (as N) —
mg/L
3 x year'
Grab
00300
DO, Oxygen, Dissolved
mg/L
3 x year'
Grab
00665
Phosphorus, Total (as P)
mg/L
3 x year'
Grab
4. 3 x year monitoring shall be conducted in April, August and November.
There shall be no discharge of floating solids or visible foam in more than trace amounts.
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WQ0015053 Version 3.3 Attachment A Page 2 of 2

ATTACHMENT B - APPROVED LAND APPLICATION SITES AND LINUTATIONS Permit Number: WQ0015053 Version: 3.2
Moyock Commons Shopping Center and Currituck Commercial Center
INFILTRATION AREA INFORMATION
APPLICATION LIMITATIONS
Basin !
Owner
County
Latitude
Longitude
Net
Dominant
Parameter
Hourly
Yearly
Units
Field
Acreage
Soil Series
Rate
Max
01
Commercial Prop Inc - Moyock
Currituck
3691'00"
76610'22"
.63
Roanoke fine
01284 - Application Surface Irrigation
1.25
gpolsf
sandy loam
02
Commercial Prop Inc - Moyock
Currituck
36°30'48"
78'10'03"
.63
Roanoke fine
sandy loam
01284 - Application Surface Irrigation
1.25
gpd/sf
Totals
1.26
WQ0015053 Version 3.3 Attachment B Page I of 2

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WQ0015053 Version 3.3 Attachment B Page 2 of 2

ATTACHMENT C — GROUNDWATER MONITORING AND LIMITATIONS
Monitoring wells: MW-1, MW-2, MW-3
Permit Number: WQ0015053 Version: 3.2
GROUNDWATER CHARACTERISTICS
GROUNDWATER STANDARDS
MONITORING REQUIREMENTS
PCs
Code
Parameter Description
Daily Maximum
Frequency Measurement
Sample Type
Footnotes
82546
Water level, distance from measuring point
ft
3 x year
Calculated
1, 2,3 & 5
00400
pH
8.50
S.U.
3 x year
Grab
1 & 5
31616
CoFform, Fecal MF, M-FC Broth, 44.5C
41100m1
3 x year
Grab
1 & 5
70300
Solids, Total Dissolved —180 Deg. C
500.00
mg/l
3 x year
Grab
1 & 5
00680
Carbon, Tot Organic (TOC)
Mgt]
3 x year
Grab
1, 4 & 5
00940
Chloride (as Cl)
250.00
mg/l
3 x year
Grab
1 & 5
00945
Sulfate, Total (as SO4)
250.00
mg/l
3 x year
Grab
1 & 5
00610
Nitrogen, Ammonia Total (as N)
mg/1
3 x year
Grab
1 & 5
00620
Nitrogen, Nitrate Total (as N)
10.00
mg/I
3 x year
Grab
1 & 5
00665
Phosphorus, Total (as P) -
mg/I
3 x year
Grab
1 & 5
I . 3 x Year monitoring shall be conducted in April, August and November.
2, The measurement of water levels shall be made prior to purging the wells. The depth to water in each well shall be measured from the surveyed point on the top of the casing. The measurement
of pH shall be made after purging and prior to sampling for the remaining parameters.
3. The measuring points (top of well casing) of all monitoring wells shall be surveyed to provide the relative elevation of the measuring point for each monitoring well. The measuring points (top
of casing) of all monitoring wells shall be surveyed relative to a common datum.
4. If TOC concentrations greater than 10 mg/l are detected in any downgradient monitoring well, additional sampling and analysis 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/1, this concentration will be taken to represent the naturally occurring
TOC concentration. Any exceedances of this naturally occurring TOC concentration in the downgradient wells shall be subject to the additional sampling and analysis as described above.
5. Monitoring wells shall be reported consistent with the nomenclature and location information provided in this attachment.
WQ0015053 Version 3.3 Attachment C Page 1 of 1