WQ0024023_Final Permit_20151012

North Carolina Department of Environmental Quality
Pat McCrory Donald van der Vaali
Governor Secretary
October 12, 2015
MICHAEL W. LAWS - MANAGING PARTNER
HARKERS ISLAND SEWER COMPANY, LLC
POST OFFICE Box 370
HARKERS ISLAND, NORTH CAROLINA 28531-0370
Subject: Permit No. WQ0024023
West Bay WWTF
High -Rate Infiltration System
Carteret County
Dear Mr. Laws:
In accordance with your permit modification request received June 15, 2015, we are forwarding
herewith Permit No. WQ0024032 dated October 12, 2015, to Harkers Island Sewer Company, LLC for the
continued operation of the Phase I wastewater treatment and high -rate infiltration facilities, as well as the
construction and operation of the Phase H wastewater treatment and high -rate infiltration facilities.
The modifications to the subject permit are as follows: All flow from the James Creek Subdivision
is removed. Flow emanates from lots under sewer extension permits WQ0028650, WQ0037151, and
WQ0037851.
This permit shall be effective from the date of issuance until December 31, 2019, shall void Permit
No. WQ0024023 issued January 7, 2015, 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,
For your convenience, customized electronic copies of your facility's NDMR and NDAR-2
reporting forms are available for download at: http://portal.nedenr.ora/web/wglaps/lau/reporting.
Please note the following permit conditions have been removed since the last permit issuance
dated January 7, 2015:
1. Old Condition 1.4 James Creek Subdivision is no longer served by this permit.
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.
Non -Discharge Permitting Unit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Phone: 9IM07.64641Internet: http://oortal.ncdenr.orglwehlwa
An Equal Opportunkty 1 Atflrmative Action Employer - Made in part with recycled paper

Mr. Michael W. Laws
October 12, 2015
Page 2 of 2
If you need additional information concerning this permit, please contact Troy Doby at (919) 807-
6336 or tro .dob @ncdenr.gov.
Sincerely,
�yL—S. Jay Zimmerman, P.G., Director
Division of Water Resources
cc: Carteret County Health Department (Electronic Copy)
Wilmington Regional Office, Water Quality Regional Operations Section (Electronic Copy)
Bill Forman, Jr., PE — Arendell Engineers fbillgarendellengineers.comi (Electronic Copy)
Digital Permit Archive (Electronic Copy)
Central Files

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENTAL QUALITY
1;71 P 311"11
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
Harkers Island Sewer Company, LLC
Carteret County
FOR THE
operation of a wastewater treatment and high -rate infiltration facility consisting of the:
continued operation of the Phase I 10,080 gallon per day (GPD) wastewater treatment and higb-rate
infiltration facility consisting of: a 12,600 gallon flow equalization basin; an influent flow meter; two
aeration basins; two 2,758 gallon anoxic tanks ; a 5,200 GPD Zenon Ultrafiltration System; tablet
chlorination with a minimum of 30 minutes of contact time in the chlorine contact chambers; a 5,650 gallon
irrigation pump tank; a generator to power all treatment facilities; a 0.156 acre high -rate drip infiltration
area (i.e., Zones l and 2); and all associated piping, valves, controls and appurtenances; and the
construction and operation of the Phase II 10,080 GPD wastewater treatment and high -rate infiltration
facility (resulting in a total capacity of 20,160 GPD) consisting of: two 5,040 GPD membrane filters; a
4,020 gallon aerated sludge tank; one membrane cassette to each existing train, and modify plumbing to
make two membrane cassettes operate as a single train; a Kaesar BB52C blower for the membrane tanks;
a 0.156 acres high -rate drip infiltration area (i.e., Zones 3 and 4); a vinyl sheet pile containment wall to be
constructed around the entire perimeter of the combined high -rate drip infiltration area; a dual Aquafine
Optima ultraviolet (LTV) disinfection unit with two lamps to replace the chlorination system (at the
Permittee's discretion); and all associated piping, valves, controls and appurtenances
to serve the West Bay WWTF receiving flow from 28 lots under sewer extension permit WQ0028650, 22
lots under sewer extension permit WQ0037151, and the Cape Lookout National Seashore Park under sewer
extension permit WQ0037851 with no discharge of wastes to surface waters, pursuant to the application
received June 15, 2015, and in conformity with the project plans, specifications, and other supporting data
subsequently filed and approved by the Department of Environmental Quality and considered a part of this
permit. This permit shall be effective from the date of issuance until December 31, 2019, shall void Permit
No. WQ0024023 issued January 7, 2015, and shall be subject to the following specified conditions and
limitations:
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I. SCHEDULES
Prior to construction of Phase II plant upgrade, the Permittee shall submit a permit modification request
to the Division in order to allow the use of high -rate infiltration Zones 3 and 4. This permit modification
request shall include a soil evaluation for Zones 3 and 4 that has been completed and sealed in
accordance with the requirements in 15A NCAC 02T .0704(b). This permit modification shall also
include the required setback waivers in accordance with 15A NCAC 02T .0706(e). These waivers shall
be properly executed, notarized, signed by all parties involved and recorded in the Carteret County
Register of Deeds. [15A NCAC 02T .0108(b)(2)]
2. Upon completion of construction and prior to operation of the permitted Phase II facilities, a
certification (attached) shall be submitted from a licensed North Carolina Professional Engineer
certifying that the permitted facility has been installed in accordance with this permit, Division
approved plans and specifications, and other supporting documentation, including the location of all
monitoring wells as applicable. If this project is to be completed in phases and partially certified, the
Permittee shall retain the responsibility to track further construction approved under the same permit,
and shall provide a final certificate of completion once the entire project has been completed. Mail the
Certification to the Division of Water Resources, Water Quality Permitting Section, 1636 Mail Service
Center, Raleigh, NC 27699-1636. [15A NCAC 02T .0116(a)]
3. The Wilmington Regional Office, telephone number [phone], shall be notified at least 48 hours
in advance (excluding weekends and holidays) of operation of the installed facilities such that an in -
place inspection can be made. 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. [ 15A NCAC 02T .0108(b)(2)]
4. No Iater 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.
[1.5A NCAC 02T .0105(d), 02T .0106, 02T .0109, 02T .0115(c)]
5. 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. [15A
NCAC 02H .0404(c)]
II. 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. [G.S.
143-215.1, 143-213.3(a)]
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. [ 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]
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4. Effluent quality shall not exceed the limitations specified in Attachment A. [15A NCAC 02T
.0108(b)(1), 02T .0705(b)]
5. Application rates, whether hydraulic, nutrient or other pollutant, shall not exceed those specified in
Attachment B. [I5A NCAC 02T.0705(m)]
6. A usable green area shall be maintained for effluent disposal. The green area shall contain at least
1,000 square feet of open green area for each residential unit served, or 2,500 square feet per thousand
gallons per day of waste flow, whichever is less. A green area is defined as 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. [15A NCAC 02H .0404(g)(7)]
7. The compliance and review boundaries for high -rate infiltration Zones 1 and 2 are established at the
property boundary. Any exceedance of standards at the compliance or review boundary shall require
action in accordance with 15A NCAC 02L .0106. [15A NCAC 02H .0219(k)(1)(C)(i)(111)]
High -rate infiltration Zones 3 and 4 were 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(d)(2), 02L
.0107(b)]
9. In accordance with 15A NCAC 02L A108, the review boundary for high -rate infiltration Zones 3 and
4 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 .0106, 02L .0108]
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. [15A NCAC 02L A107(c)]
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). [15A NCAC 02L .0107]
12. Except as provided for in 15A NCAC 02L .0107(g), the Perm ittec shall ensure any landowner who is
not the Permittee and owns land within the compliance boundary shall execute and file with the Carteret
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.
[ 15A NCAC 02L .0107(f)]
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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 Zones 1 and 2 permitted under 15A NCAC 02H .0200
shall be as follows (all distances in feet):
i. Any on -property residential units that are to be sold (e.g. condominiums, I o
subdivisions)
ii. Any private or public water supply source: 100
iii. Surface waters: 200
iv. Any streams classified as WS or B: 200
v. Distance between mean high water and any "SA" or "SB" classified surface waters: 200
vi. Distance between normal high water between high rate infiltration unit and any 200
Class I or Class II impounded reservoir used as a source of drinking water:
vii. Subsurface groundwater lowering drainage systems: 200
viii. Public right of way: 50
ix. Impounded public water supplies: 500
Setback requirements to property limes for Zones I and 2 were removed at the time of initial
permitting. Expansion of the fields would require that all current setbacks are met.
[I5A NCAC 02H .02190), 02H .0404(g)]
b. The setbacks for high -rate infiltration sites Zones 3 and 4 permitted under 15A NCAC 02T .0706
shall be as follows (all distances in feet):
i. Any habitable residence or place of public assembly under separate ownership:
ii. Any habitable residence or place of public assembly owned by the Permittee:
iii. Any private or public water supply source:
iv. Surface waters:
v. Groundwater lowering ditches:
vi. Surface water diversions:
vii. Any well with exception of monitoring wells:
viii. Any property line:
ix. Top of slope of embankments or cuts of two feet or more in vertical height:
x. Any water line from a disposal system:
xi. Subsurface groundwater lowering drainage systems:
xii. Any swimming pool:
xiii. Public right of way:
xiv. Nitrification field:
xv. Any building foundation or basement:
xvi. Impounded public water supplies:
xvii. Public shallow groundwater supply:
[I5A NCAC 02T .0706(a)]
400
200
too
200
200
50
100
200
100
10
200
100
50
20
15
500
500
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c. The setbacks for treatment units permitted under 15A NCAC 02H .0200 shall be as follows (all
distances in feet):
i. Any well with the exception of monitoring wells
ii. Any property line:
[15A NCAC 02H .02190)]
100
50
d, The setbacks for treatment units permitted under 15A NCAC 02T .0700 shall be as follows (all
distances in feet):
i. Any habitable residence or place of public assembly under separate ownership or 100
not to be maintained as part of the project site
ii. Any private well or public water supply source 100
iii. Surface waters (streams — intermittent and perennial, perennial waterbodies, and 50
wetlands)
iv. Any well with the exception of monitoring wells 100
v. Any property line: 50
[15A NCAC 02T .0706(d)]
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 .0707, which at a minimum shall include operational functions,
maintenance schedules, safety measures and a spill response plan. [15A NCAC 02T .0707]
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. [15A NCAC 02T .0117]
3. Adequate measures shall be taken to prevent effluent ponding in or runoff from the infiltration sites
listed in Attachment B. [15A NCAC 02T .0108(b)(1)]
4. Infiltration shall not be performed during inclement weather or when the ground is in a condition that
will cause ponding or runoff. [15A NCAC 02T .0108(b)(1)]
5. All infiltration equipment shall be tested and calibrated at least once per permit cycle. Calibration
records shall be maintained at the facility for a period of no less than five years, and shall be made
available to the Division upon request. [15A NCAC 02T .0108(b)(1)]
6. Only effluent from West Bay WWTF shall be infiltrated on the sites listed in Attachment B. [G.S. 143-
215.1]
7. 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. [15A NCAC 02H .0404(g)(3)]
8. No automobiles or machinery shall be allowed on the infiltration sites except during equipment
installation or while maintenance is being performed. [15A NCAC 02T .0108(b)(1)]
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9. Public access to the infiltration sites and wastewater treatment facilities shall be prohibited. [I 5A
NCAC 02T .0705(p)]
10. The residuals generated from the wastewater treatment facilities shall be disposed or utilized in
accordance with 15A NCAC 02T .I 100. The Permittee shall maintain a residual management plan
pursuant to 15A NCAC 02T .0708. [ 15A NCAC 02T .0708, 02T .1100]
11. Diversion or bypassing of untreated or partially treated wastewater from the treatment facilities is
prohibited. [15A NCAC 02T .0705(i)]
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. [15A NCAC 02T .0108(c)]
2. A Division -certified laboratory shall conduct all laboratory analyses for the required effluent,
groundwater or surface water parameters. [15A NCAC 02H .0800]
3. Flow through the treatment facility shall be continuously monitored, and daily flow values shall be
reported on Form NDMR.
The Permittee shall install and maintain an appropriate flow measurement device to ensure the accuracy
and reliability of flow measurement consistent with accepted engineering and scientific practices.
Selected flow measurement devices shall be capable of measuring flows with a maximum deviation of
less than ten percent from true flow; accurately calibrated at a minimum of once per year; and
maintained to ensure the accuracy of measurements is consistent with the selected device's accepted
capability. The Permittee shall maintain records of flow measurement device calibration on file for a
period of at least five years. At a minimum, documentation shall include:
a. Date of flow measurement device calibration,
b. Name of person performing calibration, and
c. Percent from true flow.
[15A NCAC 02T .0105(k)]
4. The Permittee shall monitor the effluent from the subject facilities at the frequencies and locations for
the parameters specified in Attachment A. [I 5A NCAC 02T .0108(c)]
5. The Permittee shall maintain adequate records tracking the amount of effluent irrigated. At a minimum,
these records shall include the following information for each irrigation site listed in Attachment B:
a. Date of infiltration;
b. Volume of effluent infiltrated;
c. Site infiltrated;
d. Length of time site is infiltrated;
e. Continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings;
f. Continuous monthly and year-to-date loadings for any non -hydraulic parameter specifically
limited in Attachment B; and
g. Weather conditions.
[15A NCAC 02T .0108(c)]
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6. Three copies of all monitoring data (as specified in Conditions IV.3. and IVA.) on Form NDMR for
each PPI and three copies of all operation and disposal records (as specified in Condition IV.5) 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
[ 15A NCAC 02T .0105(1)]
7. 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.
[ 15A NCAC 02T .0108(b)(1)]
8. A maintenance log shall be maintained at this facility. This log shall be maintained at the facility for a
period of no less than five years, and shall be made available to the Division upon request. At a
minimum, this log shall include:
a. Date 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.).
[ 15A NCAC 02T .0108(b)(1)]
9. 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 ma in 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 A. [15A NCAC 02T .0105(m)]
10. 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 .0I05(m)]
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11. An annual representative soils analysis (i.e., Standard Soil Fertility Analysis) shall be conducted on
each infiltration site listed in Attachment B. These results 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, the
Standard Soil Fertility Analysis shall include the following parameters:
Acidity
Exchangeable Sodium Percentage
Phosphorus
Base Saturation (by calculation)
Magnesium
Potassium
Calcium
Manganese
Sodium
Cation Exchange Capacity
Percent Humic Matter
Zinc
Copper
pH
[15A NCAC 02T .0108(c)]
12. Noncompliance Notification:
The Permittee shall report by telephone to the Wilmington Regional Office, telephone number (910)
796-7215, as soon as possible, but in no case more than 24 hours, or on the next working day following
the occurrence or first knowledge of the occurrence of any of the following:
a. Any occurrence at the facility resulting in the treatment of significant amounts of wastes that is
abnormal in quantity or characteristic, including the known passage of a hazardous substance.
b. Any process unit failure (e.g., mechanical, electrical, etc.), due to known or unknown reasons,
rendering the facility incapable of adequate wastewater treatment.
c. Any facility failure resulting in a by-pass directly to receiving surface waters.
d. Any time self -monitoring indicates the facility has gone out of compliance with its permit
limitations.
e. Ponding in or runoff from the infiltration sites.
Any emergency requiring immediate reporting (e.g., discharges to surface waters, imminent failure of
a storage structure, etc.) outside normal business hours shall be reported to the Division's Emergency
Response personnel at telephone number [phone], [phone], or [phone]. Persons
reporting such occurrences by telephone shall also file a written report in letter form within five days
following first knowledge of the occurrence. This report shall outline the actions taken or proposed to
betaken to ensure the problem does not recur. [15A NCAC 02T .0105), 02T .0108(b)(1)]
V. INSPECTIONS
1. The Permittee shall provide adequate inspection and maintenance to ensure proper operation of the
wastewater treatment and infiltration facilities. [15A NCAC 02T .0108(b)]
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. [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 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. [G.S. 143-21.5.3(a)(2)]
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VI. GENERAL CONDITIONS
1. Failure to comply with the conditions and limitations contained herein may subject the Permittee to an
enforcement action by the Division in accordance with North Carolina General Statutes 143-215.6A to
143-215.6C.
2. This permit shall become voidable if the permitted facilities are not constructed in accordance with the
conditions of this permit, the Division approved plans and specifications, and other supporting
documentation. [ 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 A 105(n).
[G. S. 143-21.5.1 ]
4. The issuance of this permit does not exempt the Permittee from complying with any and all statutes,
rules, regulations, or ordinances, which may be imposed by other jurisdictional government agencies
(e.g., local, state, and federal). Of particular concern to the Division are applicable river buffer rules in
15A NCAC 02B .0200; erosion and sedimentation control requirements in 15A NCAC Chapter 4 and
under General Permit NCG010000; any requirements pertaining to wetlands under 15A NCAC 02B
.0200 and 02H .0500; and documentation of compliance with Article 21 Part 6 of Chapter 143 of the
General Statutes.
5. In the event the permitted facilities change ownership or the Permittee changes their name, a formal
permit modification request shall be submitted to the Division. This request shall be made on official
Division forms, and shall include appropriate property ownership documentation and other supporting
documentation as necessary. The Permittee of record shall remain fully responsible for maintaining
and operating the facilities permitted herein until a permit is issued to the new owner. [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 Permittee 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 A 120(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 12' day of October 2015
NORTH CAROLAk ENVIRONMENTAL MANAGEMENT COMMISSION
S. Jay Zimmerman, P.G., Directo
Division of Water Resources
By Authority of the Environmental Management Commission
Permit Number WQ0024023
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Permit No. WQ0024023 High -Rate Infiltration System
Harkers Island Sewer Company, LLC October 12, 2015
West Bay WWTF Carteret County
ENGINEERING CERTIFICATION
❑ Partial ❑ Final
In accordance with 15A NCAC 02T .0116, I,_ as
a duly registered Professional Engineer in the State of North Carolina, having the Permittee's authorization
to ❑ periodically ❑ weekly ❑ fully observe the construction of the permitted facility, hereby state to the
best of my abilities that due care and diligence was used in the observation of the construction, such that
the facility was built within substantial compliance and intent of this permit, the Division -approved plans
and specifications, and other supporting documentation.
❑ Any variation to this permit, the Division -approved plans and specifications, and other supporting
documentation has been documented in the attached as -built drawings, and shall serve as the
Permittee's minor modification request to amend the permit accordingly.
Provide a brief narrative description of any variations:
THE COMPLETED ENGINEERING CERTIFICATION, INCLUDING ALL SUPPORTING
INFORMATION AND MATERIALS, SHALL BE SENT TO THE FOLLOWING ADDRESS:
NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER RESOURCES
WATER QUALITY PERMITTING SECTION
NON -DISCHARGE PERMITTING UNIT
ByU•S._Postal Service:
1617 MAIL SERVICE CENTER
By Courier/Special Delivery:
512 N. SALISBURY ST.
RALEIGH, NORTH CAROLINA 27699-1617 RALEIGH, NORTH CAROLINA 27604
WQ0024023 Version 2.1 Shell Version 150101 - Page 10 of 10

ATTACHMENT A — LIMITATIONS AND MONITORING REQUIREMENTS
PPI 001— WWTP Effluent (Phase I)
Permit Number: WQ0024023 Version: 2.1
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 °C)
mg/l,
10
Weekly ` / Monthly'
Grab
00940
Chloride (as Cl)
mg/L
3 x Year 2
Grab
50060
Chlorine, Total Residual
mg/L
5 x Week 3
Grab
31616
Coliform, Fecal MF, M-FC Broth, 44.5 °C
#/100 mL
14
43
Weekly ; I Monthly 2
Grab
50050
Flow, in Conduit or thru Treatment Plant
GPD
10,080
Continuous
Recorder
00610
Nitrogen, Ammonia Total (as N)
mg/L
4
Weekly t / Monthly 2
Grab
00625
Nitrogen, Kjeidahl, Total (as N)
mg/L
Weekly t / Monthly 2
Grab
00620
Nitrogen, Nitrate Total (as N)
mg/L
Weekly 1 / Monthly 2
Grab
00600
Nitrogen, Total (as N)
mg/L
Weekly / Monthly
Grab
00400
pH
su
6
9
5 x Week
Grab
00665
Phosphorus, Total (as P)
mg/L
Weekly 1 / Monthly 2
Grab
70300
Solids, Total Dissolved —180 °C
mg/L
3 x Year 2
Grab
00530
Solids, Total Suspended
mg/L
20
Weekly 1 / Monthly 2
Grab
1. Weekly sampling shall be conducted from May 1st through August 31'.
2. Monthly sampling shall be conducted from September 11t through April 30".
3_ 3 x year sampling conducted during March, July and November.
4, Total Residual Chlorine monitoring is required until UV disinfection system replaces tablet chlorinator.
WQ0024023 Version 2.0 Attachment A Page 1 of 2

ATTACI-I111ENT A — LIMITATIONS AND MONITORING REQUIREMENTS
PPI 002 — WWTP Effluent (Phase II)
Permit Number: WQ0024023 Version: 2.1
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 °C)
mg/L
10
15
Weekly' / Monthly 2
Grab
00940
Chloride (as Cl)
mg/L
3 x Year a
Grab
50060
Chlorine, Total Residual
mg/L
5 x Weeks
Grab
31616
Coliform, Fecal MF, M-FC Broth, 44.5 °C
#/100 mL
14
25
Weekly ' / Monthly z
Grab
50050
Flow, in Conduit or thru Treatment Plant
GPD
20.160
Continuous
Recorder
00610
00625
Nitrogen, Ammonia Total (as N)
Nitrogen, Kjeldahl, Total (as N)
mg/L
mglL
4
6
Weekly ' / Monthly 2
Weekly t / Monthly 2
Grab
Grab
00620
Nitrogen, Nitrate Total (as N)
mg/L
10
Weekly I / Monthly 2
Grab
00600
Nitrogen, Total (as N)
mg/L
Weekly I / Monthly 2
Grab
00400
pH
su
6
9
5 x Week
Grab
00665
Phosphorus, Total (as P)
mg/L
Weekly I / Monthly z
Grab
70300
Solids, Total Dissolved — ISO °C
mg/L
3 x Year 2
Grab
00530
Solids, Total Suspended
mg/L
15
`-
10
Weekly I / Monthly 2
Grab
[K076].Turbidity,
HCH Turbidimeter
NTU
10
Continuous
Recorder
1. Weekly sampling shall be conducted from May Pt through August 31st.
2. Monthly sampling shall be conducted from September 11 through April 30l'.
3. 3 x year sampling conducted during March, July and November.
4. Total Residual Chlorine monitoring is required until UV disinfection system replaces tablet chlorinator.
WQ0024023 Version 2.0 Attachment A Page 2 of 2

ATTACHMENT B - APPROVED LAND APPLICATION SITES AND LIMITATIONS
Harkers Island Sewer Company, LLC — West Bay WWTP
Permit Number: WQ0024023 Version: 2.1
INFILTRATION AREA INFORMATION
APPLICATION LIMITATIONS
Zone
Owner
County
Latitude
Longitude
Net
Acreage..
Dominant
Soil Series
Parameter
Daily
Rate
Yearly
Max
Units
1
Harkers Island Sewer Company, LLC.
Carteret
34° 41'51"
-76° 32' 25"
0.08
Baymeade
01284 — Non -Discharge Application Rate
1.5
GPD/ftz
2
Harkers Island Sewer Company, LLC.
Carteret
34° 41'51"
-76' 32' 25"
0.08
Baymeade
01284 -- Non -Discharge Application Rate
1.5
GPD/ftz
31
Harkers Island Sewer Company, LLC.
Carteret
34' 41'51"
-760 32' 25"
0.08
Baymeade
01284 — Non -Discharge Application Rate
0
GPD/RZ
41
Harkers Island Sewer Company, LLC.
Carteret
34° 41'51"
-76- 32' 2V
0.08
Baymeade
01284 — Non -Discharge Application Rate
0
GPD/ft2
Totals
0.32
1. Condition 1. 1., regarding submission of soils report and setback waivers, shall be met prior to beginning construction of Zones 3 and 4. Any changes to the recommended
infiltration rates or water balance calculations that result from the evaluation of Zones 3 and 4 must be approved as part of a permit modification request.
WQ0024023 Version 2.0 Attachment B Page 1. of 1

THIS PAGE BLANK

ATTACHMENT C — GROUNDWATER MONITORING AND LIMITATIONS
Monitoring wells: MW-1, MW-2, and MW-3
Permit Number: WQ0024023 Version: 2,1.
GROUNDWATER CHARACTERISTICS
GROUNDWATER STANDARDS
MONITORING REQUIREMENTS
PCS Code
Parameter Description
Daily Maximum
Frequency Measurement
Sample Type
Footnotes
00940
Chloride (as Cl)
250
mg/L
3 x Year
Grab
1,6
31616
Coliform, Fecal MF, M-FC Broth, 44.5 C
#/100mL
3 x Year
Grab
1,6
00610
Nitrogen, Ammonia Total (as N)
1.5
mg/L
3 x Year
Grab
1,6
00620
Nitrogen, Nitrate Total (as N)
10
mg/L
3 x Year
Grab
1,6
00400
pH
6.5 — 8.5
su
3 x Year
Grab
1,2
70300
Solids, Total Dissolved
mg/L
3 x Year
Grab
1,6
GWVOC
Volatile Compounds (GC/MS)
mg/L
Annual
Grab
I, 4, 5, 6
82526
Water level, distance from measuring point
1t
3 x Year
Calculated
1, 2, 3, 6
1. 3 x Year monitoring shall be conducted in March, July & November; Annual monitoring shall be conducted every November.
2. The measurement of water levels shall be made prior to purging the wells. The depth to water in each well shall be measured from the surveyed point on the top of the casing. The measurement of
pH shall be made atter 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 paints (top of
casing) of all monitoring wells shall be surveyed relative to a common datum.
4. Volatile Organic Compounds (VOC) - In November only, analyze by one of the following methods:
a. Standard Method 6230D, PQL at 0.5 µgIL or less
b. Standard Method 62101), PQL at 0.5 µglL or less
c. EPA Method 8021, Low Concentration, PQL at 0.5 µg/L or less
d. EPA Method 8260, Low Concentration, PQL at 0.5 µg/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 µg/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 Wilmington Regional Office supervisor, telephone number [phone],
must be contacted immediately for further instructions regarding any additional follow-up analyses required.
6. Monitoring wells shall be reported consistent with the nomenclature and location information provided in Figure A and this attachment.
WQ0024023 Version 2.0 Attachment C Page 1 of 1

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