WQ0018489_Final Permit_20190910

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
Director
NORTH CAROLINA
Environmental Quality
September 10, 2019
JAMIE E. REVELS, PE — UTILITIES DIRECTOR
TOWN OF CARY
POST OFFICE BOX 8005
CARY, NORTH CAROLINA 27512
Subject: Permit No. WQ0018489
South Cary WRF
Reclaimed Water Generation
System
Wake County
Dear Mr. Revels:
In accordance with your permit renewal request received September 7, 2018, and subsequent
additional information received January 7, 2019 and June 13, 2019, we are forwarding herewith Permit No.
WQ0018489 dated September 10, 2019, to the Town of Cary for the continued operation of the subject
reclaimed water generation facilities.
This permit shall be effective from the date of issuance through November 30, 2025, shall void
Permit No. WQ0018489 issued June 12, 2014, and shall be subject to the conditions and limitations therein.
The Permittee shall submit a renewal application no later than June 3, 2025.
Please pay attention to the monitoring requirements listed Attachment A 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 Division has revised the reclaimed water generation system permit conditions since the
last permit. At the request of the Permittee, bulk distribution that was permitted prior to the local
program have been moved under the local program. Thus, all facility descriptions and conditions
for bulk distribution have been removed from this permit. Please review the entire permit for any
new or modified conditions.
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.
North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1617 Mail Service Center I Raleigh, North Carolina 27699-1617
NORfH�CARDU�NAI
919.707.9000

Mr. Jamie E. Revels, PE
September 10, 2019
Page 2 of 2
If you need additional information concerning this permit, please contact Tessa Monday at (919)
707-3660 or tessa.monda .ncdenr.g~o1 .
Sincerely,
nda Culpepper, Director
Division of Water Resources
cc: Wake County Health Department (Electronic Copy)
Raleigh Regional Office, Water Quality Regional Operations Section (Electronic Copy)
Laserfiche File (Electronic Copy)
Digital Permit Archive (Electronic Copy)
Central Files

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENTAL QUALITY
RALEIGH
RECLAIMED WATER GENERATION 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
Town of Cary
Wake County
FOR THE
continued operation of a reclaimed water generation facility consisting of:
an internal mixer; water pumps; hypochlorite feed pump; two continuous turbidity monitoring and
recording devices with audible and visual alarms and automatic shut-off controls at the existing ultraviolet
(UV) disinfection and effluent structure; pumps with a low water level alarm and automatic shut-off control;
a; a treatment system consisting of a 1,000 gallon hypochlorite storage tank, metering pumps, an 8,000
gallon hydro -pneumatic tank with a water level control system and air compressor; a magnetic flow meter;
a pressure gauge; a chlorine residual analyzer; and all associated piping, valves, controls, and appurtenances
to serve the South Cary WRF, with no discharge of wastes to surface waters, pursuant to the application
received September 7, 2018, subsequent additional information received January 7, 2019 and June 13, 2019,
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 November 30, 2025, shall void Permit No.
WQ0018489 issued June 12, 2014, and shall be subject to the following conditions and limitations:
I. SCHEDULES
1. The Permittee shall request renewal of this permit on Division -approved forms no later than June 3,
2025. [15A NCAC 02T .0105(b), 02T .0109]
U. PERFORMANCE STANDARDS
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
facilities, or cessation of reclaimed water utilization activities. [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)]
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3. Effluent limitations for reclaimed water shall not exceed those specified in Attachment A. [ 15A NCAC
02U .0301]
4. 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)]
5. 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 conveying reclaimed water
shall be taped or otherwise identified as noted in paragraphs a and b above. 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)]
6. 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)]
7. 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)]
8. The facilities herein were permitted per the following setbacks:
a. The storage and treatment units were originally permitted May 15, 2000. 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 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
vi. 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.
[15A NCAC 02H .02190)(5)]
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III. OPERATION AND MAINTENANCE REQUIREMENTS
1. The Permittee shall operate and maintain the subject facilities as anon -discharge system. [15A NCAC
02U .0101]
2. The Perinittee 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)]
3. 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)]
5. The Permittee shall prohibit public access to the wastewater treatment and storage facilities. [15A
NCAC 02T .0108(b)(1)(A)]
6. The Permittee shall dispose or utilize generated residuals in a Division -approved manner. [ 15A NCAC
02T .1100, 02U .0802].
7. The Permittee shall not divert or bypass untreated or partially treated reclaimed water from the subject
facilities unless diverted to an alternate treatment or collection system. [15A NCAC 02T
.0108(b)(1)(A)]
8. Metering equipment shall be tested and calibrated annually. [15A NCAC 02U .0801(d)]
9. An automatically activated standby power source or other means to prevent improperly treated
wastewater from entering the storage, distribution, or utilization system shall be provided. [15A NCAC
02U .0401(d)]
10. 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)]
11. If turbidity exceeds 10 NTUs or if the permitted pathogen levels cannot be met, all effluent shall be
prohibited from entering the storage, distribution, or utilization system, and shall be disposed of in
accordance with Permit No. NC0065102/WQ0018489 until the reclaimed water standards are met at
the generating facility. [15A NCAC 02U .0401(c)]
12. 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)]
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13. 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
1. 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. Three copies of all monitoring data (as specified in Conditions IV.3. and IVA.) on Form NDMR for
each PPI 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)]
6. 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)]
7. 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 turbidimeter calibration;
c. Date and results of power interruption testing on alternate power supply;
d. Visual observations of the plant and plant site; and
e. Record of preventative maintenance (e.g., changing of equipment, adjustments, testing, inspections
and cleanings, etc.); and
f. 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)]
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8. Noncompliance Notification:
V.
The Permittee shall report to the Raleigh 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.71 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 Raleigh 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)]
1. The Permittee shall perform inspections and maintenance to ensure proper operation of the reclaimed
water generation facilities. [15A NCAC 02U .0801(i)]
2. The Permittee shall inspect the reclaimed water generation 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)]
3. Division authorized representatives may, upon presentation of credentials, enter and inspect any
property, premises, or place related to the reclaimed water generation 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)]
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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 .41050)]
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]
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9. Unless the Division Director grants a variance, expansion of the facilities permitted herein shall not
occur if any of the following apply:
a. The Permittee or any parent, subsidiary, or other affiliate of the Permittee has been convicted of
environmental crimes under G.S. 143-215.6B, or under Federal law that would otherwise be
prosecuted under G.S. 143-215.613, 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)]
Permit issued this the 101 day of September 2019
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
mda Culpepper, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Permit Number WQ0018489
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