WQ0018755_Final Permit_20220502

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
NORTH CAROLINA
Environmental Quality
May 2, 2022
MICHAEL A. MELTON — ENGINEERING MANAGER
AQUA NORTH CAROLINA, INC.
202 MACKENAN COURT
CARY, NORTH CAROLINA 27511
Subject: Permit No. WQ0018755
Castle Bay WWTP
Reclaimed Water Generation and
Dedicated Utilization System
Pender County
Dear Mr. Melton:
In accordance with your permit minor modification request received August 23, 2021, and
subsequent additional information received December 17, 2021 and April 4, 2022, we are forwarding
herewith Permit No. WQ0018755 dated May 2, 2022, to Aqua North Carolina, Inc. for the construction and
operation of the modified reclaimed water generation facilities, as well as the continued operation of the
subject reclaimed water generation and dedicated utilization facilities.
The following modifications to the subject permit are as follows: The installation of a mechanical
semi -cylindrical fine screen with integrated wash press at the plant headworks.
This permit shall be effective from the date of issuance through October 31, 2025, shall void Permit
No. WQ0018755 issued December 30, 2019, and shall be subject to the conditions and limitations therein.
The Permittee shall submit a renewal application no later than May 4, 2025.
Please pay attention to the monitoring requirements listed 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.
The following permit conditions are new since the last permit issuance dated December 30,
2019:
➢ Condition I.I. — This condition requires an engineering certification be submitted prior to
operation of the permitted modifications.
➢ Condition L2. — This condition requires that the Permittee contact the Wilmington Regional
Office at least 48 hours prior to operating the permitting modifications.
➢ Condition L3. — This condition requires gauges be installed on open -atmosphere structures
within 60 days of permit issuance.
➢ Condition L4. — This condition requires a final Operation and Maintenance Plan be submitted
prior to operation of modified facilities.
ME ��� North Carolina Department of Environmental Quality i Division of Water Resources
512 North Salisbury Street 11617 Mail Service Center I Raleigh, North Carolina 27699-1617
NORTH CAROLINA
©eca.. or 919,707,9000

Mr. Michael A. Melton
May 2, 2022
Page 2 of 2
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.
One set of approved plans and specifications is being forwarded to you. If you need additional
information concerning this permit, please contact Lauren Raup-Plummer at [phone] or
Lauren.Plummerkncdenr.gov.
Sincerely,
Richard E. Rogers, Jr., Director
Division of Water Resources
cc: Pender County Health Department (Electronic Copy)
Wilmington Regional Office, Water Quality Regional Operations Section (Electronic Copy)
James W. Holland, PE — McKim & Creed (Electronic Copy)
Jeff Talbot — Protection and Enforcement Branch (Electronic Copy)
Laserfiche File (Electronic Copy)
Digital Permit Archive (Electronic Copy)

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENTAL QUALITY
RALEIGH
RECLAIMED WATER GENERATION AND DEDICATED UTILIZATION 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
Aqua North Carolina, Inc.
Pender County
FOR THE
operation of a 100,000 gallon per day (GPD) reclaimed water generation and dedicated utilization facility
consisting of the:
construction and operation of. a mechanical semi -cylindrical fine screen with integrated wash press prior
to the equalization tank at the headworks; and all associated piping, valves, controls, and appurtenances;
and the
continued operation of. a 25,000 gallon flow equalization tank with an 85 cubic feet per minute (CFM)
blower, and dual 50 gallon per minute (GPM) flow equalization pumps; a flow splitter box with bar screen
and adjustable weirs; a 15,000 gallon aerated sludge holding tank; dual 62,500 gallon coarse bubble aeration
basins each with a 500 CFM blower; dual 8,333 gallon clarifiers; dual 35 square foot (fe) tertiary filter beds
with a 140 CFM blower; dual 525 GPM filter backwash pumps; dual 90 GPM backwash surge (mudwell)
pumps; dual 89 GPM effluent pumps; dual 90 GPM ultraviolet (UV) disinfection units; a turbidity sensor;
a flow sensor; a 500,000 gallon synthetically -lined 5-day upset pond; an 80 kilowatt (kW) backup generator;
a 5.4 million gallon (MG) unlined effluent storage pond; a 58.37 acre spray irrigation area; and all
associated piping, valves, controls, and appurtenances
to serve the Castle Bay WWTP, with no discharge of wastes to surface waters, pursuant to the application
received August 23, 2021, subsequent additional information received December 17, 2021 and April 4,
2022, and in conformity with the Division -approved plans and specifications considered a part of this
permit.
This permit shall be effective from the date of issuance through October 31, 2025, shall void Permit No.
WQ0018755 issued December 30, 2019, and shall be subject to the following conditions and limitations:
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I. SCHEDULES
1. Upon completion of construction and prior to operation of the permitted modifications, the Permittee
shall submit an engineering certification from a North Carolina licensed Professional Engineer
certifying that the permitted modifications have been constructed in accordance with G.S. 143-215.1,
Administrative Code Title 15A Subchapter 02U, this permit, and the Division -approved plans and
specifications. For phased and partially certified facilities, the Permittee shall retain the responsibility
to track further construction approved under this permit, and shall provide a final engineering
certification upon project completion. Mail the Engineering Certification to the Division of Water
Resources, Non -Discharge Branch, 1617 Mail Service Center, Raleigh, NC 27699-1617, or Non-
Discharge.Reports&ncdenr.aov. [15A NCAC 02T .0116(a)]
2. The Permittee shall notify the Wilmington Regional Office, telephone number [phone], at least
two business days in advance of initial operation of the constructed modifications so that the Division
can conduct an inspection. [15A NCAC 02T .0108(b)(1)(B)]
3. Gauges to monitor waste levels in the 500,000 gallon synthetically -lined 5-day upset pond and the 5.4
MG unlined effluent storage pond shall be installed within 60 days of the effective date of this permit.
Caution shall be taken not to damage the integrity of any liner (if present) when installing a gauge.
[15A NCAC 02T .0108(b)(1)(B), 02U .0401(h)]
4. Prior to operation of the modified facilities, a Final Operation and Maintenance Plan shall be submitted
for review. The plan shall be sent to the Division of Water Resources, Non -Discharge Branch, 1617
Mail Service Center, Raleigh, NC 27699-1617 or Non-Discharge.Reportskncdenr.gov. [15A NCAC
02T .0108(b)(1)(B), 02U .0801(a)]
5. The Permittee shall request renewal of this permit on Division -approved forms no later than May 4,
2025. [15A NCAC 02T .0105(b), 02T .0109]
IL PERFORMANCE STANDARDS
1. The Permittee shall maintain and operate the subject reclaimed water facilities 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, the Permittee shall take immediate corrective actions, including Division
required actions, such as the construction of additional or replacement reclaimed water generation and
utilization facilities. [15A NCAC 02T .0108(b)(1)(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 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. Effluent limitations for generated reclaimed water shall not exceed those specified in Attachment A.
[15A NCAC 02U .0301]
5. Application rates shall not exceed those specified in Attachment B. [15A NCAC 02U .0401(g)]
6. The Permittee shall connect the irrigation system to a rain or moisture sensor designed to prevent
irrigation during precipitation events or wet conditions. [15A NCAC 02U .0401(k)]
7. All reclaimed water valves, storage facilities, and outlets shall be tagged or labeled to warn the public
or employees that the water is not intended for drinking. [15A NCAC 02U .0403(b)]
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8. All reclaimed water piping, valves, outlets, and other appurtenances shall be color -coded, taped, or
otherwise marked to identify the source of the water as being reclaimed water as follows:
a. All reclaimed water piping and appurtenances shall be either colored purple (Pantone 522 or
equivalent) and embossed or integrally stamped or marked "CAUTION: RECLAIMED WATER -
DO NOT DRINK" or be installed with a purple (Pantone 522 or equivalent) identification tape or
polyethylene vinyl wrap. The warning shall be stamped on opposite sides of the pipe and repeated
every three feet or less;
b. Identification tape shall be at least three inches wide and have white or black lettering on purple
(Pantone 522 or equivalent) field stating "CAUTION: RECLAIMED WATER - DO NOT
DRINK". Identification tape shall be installed on top of reclaimed water pipelines, fastened at least
every 10 feet to each pipe length and run continuously the entire length of the pipe; and
c. Existing underground distribution systems retrofitted for the purpose of convey reclaimed water
shall be taped or otherwise identified as noted in IL8.a. and II.8.b. This identification need not
extend the entire length of the distribution system but shall be incorporated within 10 feet of
crossing any potable water supply line or sanitary sewer line.
[15A NCAC 02U .0403(c)]
9. All reclaimed water valves and outlets shall be of a type, or secured in a manner, that permits operation
by personnel authorized by the entity that operates the reclaimed water system. [15A NCAC 02U
.0403(d)]
10. Hose bibs shall be located in locked, below grade vaults that shall be labeled as being of non -potable
quality. As an alternative to the use of locked vaults with standard hose bib services, other locking
mechanisms such as hose bibs that can only be operated by a tool may be placed above ground and
labeled as non -potable water. [15A NCAC 02U .0403(e)]
11. There shall be no direct cross -connections between the reclaimed water and potable water systems,
unless such connection has been approved by the Department pursuant to 15A NCAC 18C .0406. [15A
NCAC 02U .0403(f)]
12. Reclaimed water distribution lines shall be located at least 5 feet horizontally from and 18 inches below
any water line if practicable. If these separation distances cannot be met, the piping and integrity testing
procedures shall meet water main standards in accordance with 15A NCAC 18C. [15A NCAC 02U
.0403(g), 02U .0403(h)]
13. Reclaimed water distribution lines shall not be less than 50 feet from a well unless the piping and
integrity testing procedures meet water main standards in accordance with 15A NCAC 18C, but in no
case shall they be less than 25 feet from a private well. [15A NCAC 02U .0403(g), 02U .0403(i)]
14. Reclaimed water distribution lines shall meet the separation distances to sewer lines in accordance with
15A NCAC 02T .0305. [15A NCAC 02U .0403(g), 02U .04030)]
15. Reclaimed water irrigation fields permitted prior to September 1, 2006 have compliance and review
boundaries established at the property boundary. 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, 02T .0105(h), 02H
.0219(k)(1)(C)(1)(III), G.S. 143-215.1(1), G.S. 143-215.1(k)]
16. 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 (i.e., parcel subdivision). [ 15A NCAC
02L .0107(c)]
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17. 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]
18. 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 Pender
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)]
19. The facilities herein were permitted per the following setbacks:
a. The reclaimed water irrigation Fields 1, 2, 3, 4, and 5 were originally permitted July 2, 2001.
Reclaimed water irrigation Fields 6, 7, and 9 were originally permitted July 18, 2005. The setbacks
for spray irrigation sites originally permitted or modified from June 1, 1996 to August 31, 2006 are
as follows (all distances in feet):
i. Surface waters classified SA:
100
ii. Surface waters not classified SA:
25
iii. Each water supply well:
100
iv. Each non -potable well:
10
v. Each swimming pool:
25
[15A NCAC 02H .0219(k)(1)(C)(1)]
b. The storage and treatment units (excluding the mechanical semi -cylindrical fine screen) were
originally permitted July 2, 2001. The setbacks for storage and treatment units originally permitted
or modified from June 1, 1996 to August 31, 2006 are as follows (all distances in feet):
i. Each habitable residence or place of assembly under separate ownership: 1001
ii. Each on -property residential unit if the unit is to be sold: 101
iii. Each private or public water supply source: 100
iv. Surface waters: 50
v. Each well with exception of monitoring wells: 100
vi. Each property line: 50
2.3
vii. Nitrification field: 20
1 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.
3 Per setback waivers recorded in the Pender County Register of Deeds, reduced setbacks from
the storage and treatment units to any property line are as follows:
Parcel No.
Deed Book / Page
Setback
Easement
3243-18-4146
4677 / 478
9.5 feet
40.5 feet
3293-08-7012
4677 / 480
13.2 feet
36.8 feet
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[15A NCAC 02H .0404(g), 02H .02190)(5)]
c. The mechanical semi -cylindrical fine screen was originally permitted May 2, 2022. The setbacks
for storage and treatment units originally permitted or modified on or after September 1, 2018 are
as follows (all distances in feet):
I. Each habitable residence or place of assembly under separate ownership: 1001
ii. Each private or public water supply source: 100
iii. Surface waters: 50
iv. Each well with exception of monitoring wells: 100
v. Each property line: 50 2, 3
' 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.
3 Per setback waivers recorded in the Pender County Register of Deeds, reduced setbacks from
the storage and treatment units to any property line are as follows:
Parcel No.
Deed Book / Page
Setback
Easement
3243-18-4146
4677 / 478
9.5 feet
40.5 feet
3293-08-7012
4677 / 480
13.2 feet
36.8 feet
[15A NCAC 02U .0701(a), 02U .0701(g), 02U .0701(h), 02U .0701(i)]
OPERATION AND MAINTENANCE REQUIREMENTS
1. The Permittee shall operate and maintain the subject facilities as anon -discharge system. [15A NCAC
02U .0101]
2. The Permittee shall maintain an Operation and Maintenance Plan, which shall include:
a. A description of the operation of the system in detail to show what operations are necessary for the
system to function and by whom the operations are to be conducted;
b. A description of anticipated maintenance of the system;
c. Provisions for safety measures, including restriction of access to the site and equipment; and
d. Spill control provisions that include response to upsets and bypasses, including control,
containment, and remediation, and contact information for personnel, emergency responders, and
regulatory agencies;
[15A NCAC 02U .0801(a)]
Upon the Water Pollution Control System Operators Certification Commission's (WPCSOCC)
classification of the subject non -discharge facilities, 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 operate and visit the facilities as required by the WPCSOCC. [15A NCAC 02T
.0117]
4. An operator certified by the Water Pollution Control System Operators Certification Commission
(WPCSOCC) of a grade equivalent or greater than the facility classification shall be on call 24 hours
per day. [15A NCAC 02U .0401(e)]
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5. The Permittee shall maintain vegetative cover on the irrigation sites, such that crop health is optimal,
allows even effluent distribution, and allows inspection of the irrigation system. [15A NCAC 02U
.0801(b)]
6. The Permittee shall take measures to prevent effluent ponding in or runoff from the irrigation sites
listed in Attachment B. [15A NCAC 02U .0801(c)]
7. The Permittee shall not irrigate treated effluent during inclement weather, or when the soil is in a
condition that will cause ponding or runoff. [15A NCAC 02U .0401(k)]
8. Irrigation equipment shall be tested and calibrated once per permit cycle. [15A NCAC 02U .0801(d)]
9. Only reclaimed water generated from the Castle Bay WWTP shall be irrigated on the sites listed in
Attachment B. [15A NCAC 02U .0101]
10. The Permittee shall not allow vehicles or heavy machinery on the irrigation area, except during
equipment installation or maintenance activities. [15A NCAC 02U .0801(e)]
11. The Permittee shall prohibit public access to the wastewater treatment and storage facilities. [15A
NCAC 02U .0402(e)]
12. Public access to reclaimed water utilization sites shall be controlled during active site use. Such
controls may include the posting of signs showing the activities being conducted at each site. [15A
NCAC 02U .0501(a)(2)]
13. The Permittee shall dispose or utilize generated residuals in a Division -approved manner. [ 15A NCAC
02T .1100, 02U .0802].
14. The Permittee shall not divert or bypass untreated or partially treated reclaimed water from the subject
facilities. [15A NCAC 02U .0402(g)]
15. Freeboard in the 500,000 gallon synthetically -lined 5-day upset pond and the 5.4 MG unlined effluent
storage pond shall not be less than two feet at anytime. [15A NCAC 02U .0401(h)]
16. Gauges to monitor water levels in the 500,000 gallon synthetically -lined 5-day upset pond and the 5.4
MG unlined effluent storage pond shall be provided. These gauges shall have readily visible permanent
markings, at inch or tenth of a foot increments, indicating the following elevations: maximum liquid
level at the top of the temporary liquid storage volume; minimum liquid level at the bottom of the
temporary liquid storage volume; and the lowest point on top of the dam. [15A NCAC 02U .0801(f)]
17. A protective vegetative cover shall be established and maintained on all berms, pipe runs, erosion
control areas, surface water diversions, and earthen embankments (i.e., outside toe of embankment to
maximum allowable temporary storage elevation on the inside of the embankment). Trees, shrubs, and
other woody vegetation shall not be allowed to grow on the earthen dikes or embankments. Earthen
embankments shall be kept mowed or otherwise controlled and accessible. [15A NCAC 02U .0801(g)]
18. Metering equipment shall be tested and calibrated annually. [15A NCAC 02U .0801(d)]
19. 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 02U .0401(d)]
20. Continuous online monitoring and recording for turbidity or particle count and flow shall be provided
prior to storage, distribution, or utilization of reclaimed water. [15A NCAC 02U .0401(b)]
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21. If turbidity exceeds 10 NTUs or if the permitted pathogen levels cannot be met, all effluent shall be
routed to the 5-day upset pond until the problems associated with the reclaimed water generation system
have been corrected. The water in the 5-day upset pond shall be pumped back to the treatment plant
headworks for re -treatment or treated in the 5-day upset pond prior to utilization. [15A NCAC 02U
.0402(d)]
22. The Permittee shall provide notification to the public and its employees about the use of reclaimed
water, and that reclaimed water is not intended for drinking. Such notification shall be provided to
employees in a language they can understand. [15A NCAC 02U .0501(a)(2)]
23. The Permittee shall develop and implement an education program to inform users and its employees
about the proper use of reclaimed water. Educational material shall be provided to all residents and/or
other facilities provided with reclaimed water, and these materials shall be maintained consistent with
the reclaimed water uses. All educational materials shall be made available to the Division upon
request. [15A NCAC 02U .0501(a)(4)]
IV. MONITORING AND REPORTING REQUIREMENTS
The Permittee shall conduct and report any Division required monitoring necessary to evaluate this
facility's impact on groundwater and surface water. [15A NCAC 02T .0108(c)]
2. A Division -certified laboratory shall conduct all analyses for the required effluent, groundwater, and
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. Facilities with a permitted flow less than 10,000 GPD may estimate their
flow from water usage records provided the water source is metered. [15A NCAC 02T .0105(k), 02T
.0108(c)]
4. The Permittee shall monitor the generated reclaimed water at the frequencies and locations for the
parameters specified in Attachment A. [15A NCAC 02T .0108(c)]
5. The Permittee shall maintain records tracking the amount of reclaimed water irrigated. These records
shall include the following information for each irrigation site listed in Attachment B:
a. Date of irrigation;
b. Volume of reclaimed water irrigated;
c. Site irrigated;
d. Length of time site is irrigated;
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;
g. Weather conditions; and
h. Maintenance of cover crops.
[I5A NCAC 02T .0108(c)]
6. Freeboard (i.e., water level to the lowest embankment elevation) in the 500,000 gallon synthetically -
lined 5-day upset pond and the 5.4 MG unlined effluent storage pond shall be measured to the nearest
inch or tenth of a foot, and recorded weekly. Weekly freeboard records shall be maintained for five
years, and shall be made available to the Division upon request. [15A NCAC 02T .0108(c)]
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7. Three copies of all monitoring data (as specified in Conditions IV.3. and IVA.) on Form NDMR for
each PPI and three copies of all operation and disposal records (as specified in Conditions IV.5. and
IV.6.) on Form NDAR-1 for every site in Attachment B shall be submitted on or before the last day of
the following month. If no activities occurred during the monitoring month, monitoring reports are still
required documenting the absence of the activity. All information shall be submitted to the following
address:
Division of Water Resources
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[I5A NCAC 02T .0105(1)]
8. The Permittee shall maintain a record of all residuals removed from this facility. This record shall be
maintained for five years, and shall be made available to the Division upon request. 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 02U .0802(b)]
9. A maintenance log shall be kept at this facility. This log shall be maintained for five years, and shall
be made available to the Division upon request. This log shall include:
a. Date of flow measurement device calibration;
b. Date of irrigation equipment calibration;
c. Date of turbidimeter calibration;
d. Date and results of power interruption testing on alternate power supply;
e. Visual observations of the plant and plant site; and
£ Record of preventative maintenance (e.g., changing of equipment, adjustments, testing, inspections
and cleanings, etc.); and
g. Record of all discharges of reclaimed water to surface waters or the land surface, including the date
of occurrence, estimated volume, and corrective action taken.
[15A NCAC 02U .0801(h)]
10. Monitoring wells MW-I, MW-2, and MW-3 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)]
11. Two copies of the monitoring well sampling and analysis results shall be submitted on a Compliance
Monitoring Form (GW-59), along with attached copies of laboratory analyses, on or before the last
working day of the month following the sampling month. The Compliance Monitoring Form (GW-59)
shall include this permit number, the appropriate well identification number, and one GW-59a
certification form shall be submitted with each set of sampling results. All information shall be
submitted to the following address:
Division of Water Resources
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[15A NCAC 02T .0105(m)]
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12. Noncompliance Notification:
The Permittee shall report to the Wilmington Regional Office, telephone number [phone],
within 24 hours of first knowledge of the following:
a. Treatment of wastes abnormal in quantity or characteristic, including the known passage of a
hazardous substance.
b. Any process unit failure (e.g., mechanical, electrical, etc.) rendering the facility incapable of
adequate wastewater treatment.
c. Any failure resulting in a discharge untreated or partially treated wastewater to surface waters.
d. Any failure resulting in a discharge of reclaimed water directly to surface waters or any unpermitted
release of reclaimed water to land surface greater than or equal to 5,000 gallons. Unpermitted
releases less than 5,000 gallons to land surface shall be documented by the Permittee in accordance
with Condition IV.9.g. but do not require Regional Office notification.
e. Any time self -monitoring indicates the facility has gone out of compliance with its permit
limitations.
f Ponding in or runoff from the irrigation sites.
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 Wilmington 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)]
V. INSPECTIONS
1. The Permittee shall perform inspections and maintenance to ensure proper operation of the reclaimed
water generation and utilization facilities. [15A NCAC 02U .0801(i)]
2. The Permittee shall inspect the reclaimed water generation and utilization 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 the inspection, and this log shall be made available to the Division upon request. [15A
NCAC 02U .0801(h), 02U .0801(i)]
Division authorized representatives may, upon presentation of credentials, enter and inspect any
property, premises, or place related to the reclaimed water generation and utilization 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)]
WQ0018755 Version 3.1 Shell Version 200201 Page 9 of 12

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)]
5. If the permitted facilities 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)]
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
02U;
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]
WQ0018755 Version 3.1 Shell Version 200201 Page 10 of 12

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. 143-215.613, or under Federal law that would otherwise be
prosecuted under G.S. 143-215.613, 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)]
11. Pursuant to the flow reduction request received January 8, 2007, and approved May 11, 2007, the
Division accepts the data -based design flow rate of 94 gallons per day per bedroom (GPD/bedroom)
for the users served by this facility. At no time shall wastewater flows exceed the limits defined in this
permit, or exceed the sewer capacity downstream of any new sewer extension or service connection.
The Permittee shall report the measured monthly average amount of wastewater flow contributed per
unit (GPD/bedroom) for the 12 months prior to permit renewal. If any of these monthly averages are
within 20% of the approved value, the Permittee shall reevaluate the approved value using the
methodology applied to determine the approved flow rate of 94 GPD/bedroom, and submit this
information with the renewal application for reevaluation of the approve flow rate. [15A NCAC 02T
.0114(f)]
12. The Permittee shall retain the Division's written approval of the authorized adjusted daily design flow
rate for the life of this facility, and shall transfer this approval to any future Permittee. [15A NCAC
02T .0114(f)]
Permit issued this the 2nd day of May 2022
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
74e�'.O�z sl:<a� —
Richard E. Rogers, Jr., Director
Division of Water Resources
By Authority of the Environmental Management Commission
Permit Number WQ0018755
WQ0018755 Version 3.1 Shell Version 200201 Page 11 of 12

Permit No. WQ0018755 Reclaimed Water Generation and Dedicated Utilization System
Aqua North Carolina, Inc. May 2, 2022
Castle Bay WWTP Pender County
ENGINEERING CERTIFICATION
❑ Partial ❑ Final
I, , as a duly licensed North Carolina Professional
Engineer, having ❑ periodically / ❑ fully observed the construction of the permitted facilities, do hereby
state to the best of my abilities that the facility was constructed in compliance with G.S. 143-215.1,
Administrative Code Title 15A Subchapter 02U, this permit, and the Division -approved plans and
specifications.
Documentation of any variation to this permit, and the Division -approved plans and specifications, is in the
attached as -built drawings.
Description of variations:
Professional Engineer's Name
Firm Name
Firm No.
Address
City
State
Zip Code
Telephone
Email
Seal, Signature, and Date
THE COMPLETED ENGINEERING CERTIFICATION, INCLUDING ALL SUPPORTING
DOCUMENTATION, SHALL BE SENT TO THE FOLLOWING ADDRESS:
NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
NON -DISCHARGE BRANCH
By U.S. Postal Service By Courier/Special Delivery
1617 MAIL SERVICE CENTER 512 N. SALISBURY ST.
RALEIGH, NORTH CAROLINA 27699-1617 RALEIGH, NORTH CAROLINA 27604
WQ0018755 Version 3.1 Shell Version 200201 Page 12 of 12

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