WQ0017064_Final Permit_20010514

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
Michael F. Easley, Governor
William G. Ross Jr., Secretary
Kerr T. Stevens, Director
May 14, 2001
MR. ROBERT BONNE, UTILITIES DIRECTOR
TOWN OF CARY
POST OFFICE BOX 8005
CARY, NORTH CAROLINA 27512-8005
Dear Mr. Bonne:
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NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: Permit No. WQ0017064
Town of Cary
North Cary Water Reclamation Facility
Bulk Reclaimed Water Distribution Program
Wake County
In accordance with your application received on December 21, 2000 as well as the additional information
received on April 11, 2001, we are forwarding herewith Permit No. WQ0017064, dated May 14, 2001, to the Town
of Cary for the continued operation of a bulk reclaimed water distribution program from the North Cary Water
Reclamation Facility.
Note that this permit is being modified to allow for the construction and operation of a permanent fill station
located near the reclaimed water program facilities that were previously permitted by the Division of Water Quality
(Division) under Permit No. WQ0017923. No other aspects associated with the operation of the bulk reclaimed
water distribution program have been changed as a result of this modification. It is important, however, to take to
review this permit thoroughly. Of particular interest are the following new and amended conditions:
♦ General: The system description has been amended to allow the construction and operation of the
permanent fill station. It is the Division's understanding that this fill station will be used exclusively
following its construction and verification of its proper operation.
♦ Condition I. 1.: This permit contains a requirement for another engineer's certification to be prepared
and submitted to the Division in order to verify that the permitted facilities were installed properly.
♦ Condition 1. 7. through -Condition 1. 10.: These new conditions have been included in this permit in order
to ensure complete compliance with 15A NCAC 211.0219 (k)(1)(D).
♦ Condition 11. 2.: This condition has been amended to reflect the adoption of new rules by the Water
Pollution Control System Operators Certification Commission (WPCSOCC). The referenced regulation
is now 15A NCAC 8G .0202.
♦ Condition 11. 2.: Residual chlorine has been added to the list of parameters for which the bulk reclaimed
water must be monitored. Note that it is acceptable to report the results from the analyzer that is used to
measure the residual chlorine in the reclaimed water that is distributed to the North Cary Reclaimed
Water Program (i.e., approved under Permit No. WQ0017923) for the purposes of compliance with this
permit.
1617 Mail service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] Fax [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled110% post -consumer paper

♦ Condition V. 5.: This condition has been amended with examples of other statutes, rules, regulations,
and ordinances with which the Permittee must comply and that are not under the jurisdiction of this
permit.
This permit shall be effective from the date of issuance until July 31, 2004; shall void Permit No.
WQ0017064, issued on August 17, 1999; and shall be subject to the conditions and limitations as specified therein.
Please pay particular attention to the monitoring requirements in this permit. Failure to establish an adequate
system for collecting and maintaining the required operational information will result in future compliance
problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to
request an adjudicatory hearing upon written request within 30 days following receipt of this permit. This request
must 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, 6714 Mail Service Center, Raleigh, NC 27699-6714. Unless such
demands are made, this permit shall be final and binding.
One set of the approved plans is being forwarded to you. If you need additional information concerning this
matter, please contact Ms. Shannon Mohr Thornburg at (919) 7133-5083, a nsion 353.
Sinc ,
Kerr T. Stevens
cc: Camp, Dresser & McKee, Inc.
Wake County Health Department
Raleigh Regional Office, Water Quality Section
Raleigh Regional Office, Groundwater Section
Central Office, Groundwater Section
Technical Assistance and Certification Unit
Non -Discharge Compliance/Enforcement Unit
NPDES Unit

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
BULK RECLAIMED WATER DISTRIBUTION 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
continued operation of a 100,000-GPD bulk reclaimed water distribution program and all associated facilities at the
North Cary Water Reclamation Facility (NPDES Permit No. NC0048879). Bulk reclaimed water, following
treatment and testing according to the water reclamation facility's existing NPDES permit and the conditions
provided herein, may be manually distributed from a temporary fill station. The temporary fill station shall consist
of a two-inch hose connected to a quick -connect coupling and gate valve tapped onto an existing four -inch non -
potable water line that serves the water reclamation facility.
construction and operation of a 100,000-GPD bulk reclaimed water distribution program and all associated facilities
at the North Cary Water Reclamation Facility (NPDES Permit No. NC0048879). Bulk reclaimed water, following
treatment and testing according to the water reclamation facility's existing NPDES permit and the conditions
provided herein, may be manually distributed from a permanent fill station located near the reclaimed water
program facilities permitted for construction under Permit No. W p0017923. The fill station is located near the
southwestern border of the water reclamation facility, between the residuals management facilities and the
1,000,000-gallon reclaimed water storage tank. The permanent fill station shall be connected to a four -inch
reclaimed water line from the reclaimed water pump station and shall consist of the following minimum
components: a secured, below -ground valve vault containing isolation valves and a flow metering device; a four -
inch fill pipe ending in a 90°-bend that is approximately 15 feet high and supported on a metal structure to facilitate
filling trucks with reclaimed water; a two-inch side -load alternate fill port; a concrete apron with a drain to collect
and convey reclaimed water back to the headworks of the water reclamation facility; and all other appurtenances as
required to make a complete and operational system.
The temporary fill station detailed in the first paragraph of this system description shall be abandoned
following successful start-up of the permanent fill station. Regardless of which fill station is utilized, all reclaimed
water distributed must be measured and recorded by a flow metering device. Bulk reclaimed water may only be
distributed to approved trucks and drivers for the following uses: sewer line flushing, street sweeping, irrigation of
landscapes not intended for human consumption, and construction uses such as soil compaction, dust control, and
asphalt reclamation. The bulk reclaimed water distribution program shall be operated such that no discharge of
wastes to surface waters occurs, pursuant to application received on December 21, 2000 as well as the additional
information received on April 11, 2001 and in conformity with the project plans, specifications, and other
supporting data subsequently filed and approved by the Department of Environment and Natural Resources and
considered a part of this permit.

This permit shall be effective from the date of issuance until July 31, 2004; shall void Permit No.
WQ0017064, issued on August 17, 1999 and shall be subject to the following specified conditions and limitations:
I. PERFORMANCE STANDARDS
Upon completion of construction and prior to operation of the permitted facilities, a certification shall
be received from a North Carolina -licensed professional engineer certifying that the facilities have been
installed in accordance with this permit, the approved plans and specifications, and other supporting
materials. If this project_is to be completed in _phases and partially certified, you 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 Non -
Discharge Permitting Unit, 1617 Mail Service Center, Raleigh, NC 27699-1617.
2. The Raleigh Regional Office, telephone number [phone], shall be notified at least 48 hours in
advance of operation of the permitted facilities so that an in -place inspection can be made. Such
notification to the regional supervisor shall be made during normal office hours (i.e., from 8:00 a.m.
until 5:00 p.m. on Monday through Friday, excluding State Holidays).
3. The bulk reclaimed water distribution program and facilities shall be effectively maintained and
operated at all times so that there is no discharge to the surface waters, nor any contamination of
ground waters which will render them unsatisfactory for normal use. In the event that the program
andlor facilities fail to perform satisfactorily, including the creation of nuisance conditions or failure of
the application areas to adequately assimilate the wastewater, the Permittee shall take immediate
corrective actions including those actions that may be required by the Division of Water Quality
(Division), such as the construction of additional or replacement reclaimed water treatment facilities or
cessation of the operation of the bulk reclaimed water distribution program,
4. The issuance of this permit shall not relieve the Pernuttee of the responsibility for damages to surface
or groundwaters resulting from the operation of the bulk reclaimed water distribution program and
facilities.
5. The Permittee shall maintain a spill prevention, countermeasures, and control plan for the water
reclamation facility as well as for the bulk reclaimed water distribution program.
6. Diversion or bypassing of the untreated wastewater from the reclaimed water treatment facilities is
prohibited.
7. All reclaimed water valves, storage facilities, outlets shall be tagged or labeled to warn the public or
employees that the water is not intended for drinking. Where appropriate, such warning shall inform
the public or employees to avoid contact with the water.
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.
a. All reclaimed water piping and appurtenances shall be either colored purple (i.e., Pantone 522) and
embossed or integrally stamped or marked "CAUTION: RECLAIMED WATER — DO NOT
DRINK" or be installed with a purple (i.e., Pantone 522) 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
(i.e-., Pantone 522) 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.
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9. All reclaimed water valves and outlets shall be of a type, or secured in a manner, that permits operation
by authorized personnel only.
10. Above -ground hose bibs (i.e., spigots or other hand -operated connections) shall not be present. Hose
bibs shall be located in locked below -grade vaults that shall be clearly labeled as being of non -potable
quality. As an alternative to the use of locked below -grade vaults with standard hose bibs services,
hose bibs, which can only be operated by a special too] may be placed in non -lockable underground
services boxes clearly labeled as non -potable water.
11. The Permittee shall approve all tank trucks for participation in the bulk reclaimed water distribution
program prior to distribution of reclaimed water. Tank trucks shall meet the following minimum
criteria:
a. Tank trucks and other equipment used to distribute reclaimed water shall be clearly identified with
advisory signs.
b. Tank trucks used to transport reclaimed water shall not be used to transport potable water that is
used for drinking or other potable purposes.
c. Tank trucks used to transport reclaimed water shall not be filled through on -board piping or
removable hoses that may subsequently be used to fill tanks with water from a potable water
supply.
d. Tank trucks used to transport septage, raw wastewater, or wastewater residuals shall not be used to
transport reclaimed water.
12. The Permittee shall approve tank truck drivers for participation in the bulk reclaimed water distribution
program prior to distribution of reclaimed water. In addition, the Permittee shall provide bilingual
(English and Spanish) training to all tank truck drivers approved to participate in the bulk reclaimed
water distribution program at a regular frequency. These sessions shall provide training on, but not
limited to, the following topics:
a. Reclaimed water description and safety,
b. Approved and disapproved uses of reclaimed water,
c. Procedures for the application. (including buffer maintenance), uses, and storage of reclaimed water
as well as the disposal of unused reclaimed water,
d. Procedures for spill prevention, countermeasures, and control as well as notification requirements,
e. Personal safety and hygiene issues, and
f. Interaction with the general public.
13. The following uses of reclaimed water shall be strictly forbidden by the Permittee:
a. Irrigation of direct food crops,
b. FilIing of swimming pools, hot tubs, or similar uses,
c. Use as a raw potable water supply, and
d. Use after 72 hours of storage.
3

The following uses of reclaimed water distributed through the bulk reclaimed water distribution
program shall be approved:
a. Sewer line flushing, `
b. Street sweeping,
c. Landscape irrigation, and
d. Construction uses such as soil compaction, dust control, and asphalt reclamation.
All other uses for reclaimed water shall not be allowed by the Permittee. In the event there is a desire
for the permitting of additional uses, a formal permit modification request must be submitted to the
Division accompanied by an application fee and other supporting materials as may be appropriate. The
approval of this request will be considered on its merits and may or may not be approved.
14. The following buffers shall be maintained during application of reclaimed water distributed through the
bulk reclaimed water distribution program:
a. 100 feet between wetted areas and water supply wells,
b. 10 feet between wetted areas and non. -potable well,
c. 100 feet between wetted areas and waters classified as SA including wetlands as delineated and
designated by the appropriate state or federal agency, and
d. 25 feet between wetted areas and surface waters not classified as SA including wetlands as
delineated or designated by the appropriate state or federal agency or any swimming pool.
15. Public access to the application sites and contact with reclaimed water shall be controlled during
reclaimed water distribution and use. Such controls may include public meetings, publication of
notices in local newspapers, notification through television and radio news programs, as well as
distribution of the bilingual educational flyers.
11. OPERATION AND MAINTENANCE RE UIREMENTS
The bulk reclaimed water distribution program and facilities shall be properly maintained and operated
at all times.
2. Upon classification of the facilities by the Water Pollution Control System Operators Certification
Commission (WPCSOCC), the Permittee shall employ a certified wastewater treatment plant operator
to be in responsible charge (ORC) of the facilities. The operator shall hold a certificate of the type and
grade at least equivalent to or greater than the classification assigned to the facilities by the
WPCSOCC. The Permittee shall also employ a certified back-up operator of the appropriate type and
grade to comply with the conditions of 15A NCAC 8G .0202. The ORC of the facilities shall visit each
Class I facility at least weekly and each Class U,1I1, and IV facility at least daily, excluding weekends
and holidays, shall properly manage and document daily operation and maintenance of the facilities,
and shall comply with all other conditions of 15A NCAC SG .0202. Once the facilities are classified,
the Permittee shall submit a letter to the WPCSOCC that designates the ORC within 30 days after the
facilities are 50 percent complete. The ORC of the reclaimed water facility shall be responsible for the
operation of both the bulk reclaimed water distribution program and the bulk reclaimed water
distribution facilities.
A certified operator of a grade equivalent or greater than the water reclamation facility shall be on call
24 hours per day.
4. Bulk reclaimed water shall not be distributed for land -based uses nor shall reclaimed water be used for
land -based activities during inclement weather or when the ground is in a condition that will cause
runoff.
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5. The Permittee shall implement adequate measures to prevent reclaimed water runoff from the
application areas.
6. The bull: reclaimed water distribution program and facilities shall be effectively maintained and
operated as a non -discharge system to prevent the discharge of any reclaimed water resulting from the
operation of the program and its associated facilities.
7. No type of reclaimed water other than that from North Cary Water Reclamation Facility shall be
distributed through the bulk reclaimed water distribution program and facilities.
8. All wastewater shall either be routed to the headworks of the reclaimed water facility or discharged in
strict accordance with the conditions of the facility's existing NPDES permit should the limit for fecal
coliform (i.e., daily maximum concentration of 25 per 100 milliliters) or turbidity (i.e., instantaneous
maximum of 10 nephelometric turbidity units) be exceeded, until such time that the levels have
stabilized below these maximum levels.
9. All reclaimed water distributed, but not used within a period not to exceed 72 hours from the time of
distribution, shall be reintroduced at the headworks of the reclaimed water facility for treatment.
111. MONITORING AND REPORTING REQUIREMENTS
1. Any monitoring (i.e., including groundwater, surface water, soil or plant tissue analyses) deemed
necessary by the Division to ensure surface and ground water protection shall be established and an
acceptable sampling reporting schedule shall be followed.
2. As an indicator of proper operation and maintenance, the water reclamation facility shall produce an
effluent in compliance with the following limitations:
Parameter Monthly Averages Daily (Instantaneous) Maximum'
Distributed Flow
CBODS (5-day, 20°C)
Ammonia -Nitrogen
Total Suspended Solids
Fecal Coliform
Turbidity
10 mg/L
4 mg/L
5 mg/L
b
14 per 100 mL
100,000 GPD
15 mg/L
6 mg/L
10 mg/L
25 per 100 mL
10 NTU
The monthly average concentrations for all parameters except fecal coliform shall be the arithmetic
mean of all samples collected during the reporting period.
The monthly average concentration for fecal coliform shall be the geometric mean of all samples
collected during the reporting period.
The daily maximum concentrations for all parameters shall be the maximum value of all samples
collected during the reporting period.
E

The effluent from the subject facilities (i.e., representative of the bulk reclaimed water distributed) shall
be monitored, by the Permittee, at the point prior to discharge to the bulk reclaimed water distribution
facilities for the following parameters:
Parameter
Sampling Point
Sampling Frequency
Type of Sa ale
Distributed Flow
Prior to Distribution
As Distributed
Recording
Residual Chlorine
Prior to Distribution
Continuous
Recording
Turbidity
Prior to Distribution
Continuous
Recording
CBODS (5-day, 20°C)
Prior to Distribution
Daily
Composite
NH3 as N
Prior to Distribution
Daily
Composite
TSS
Prior to Distribution
Daily
Composite
Fecal Coliform
Prior to Distribution
Daily
Grab
The effluent pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
3. The Permittee shall maintain applications of all approved tank trucks and drivers on file for the duration,
not less than one year, that the driver participates in the bulk reclaimed water distribution program.
4. Adequate records shall be maintained by the Permittee that tracks the amount bulk reclaimed water
distributed. These records shall include, but are not necessarily limited to the following information:
a. Date and time of distribution,
b. Volume of reclaimed water distribution,
c. Intended uses of reclaimed water,
d. Locations of intended uses,
e. Names and approval status of truck operators,
f. Approval status of trucks,
g. Compliance status of the water reclamation facility, and
h. Weather conditions.
Three copies of all operation and distribution records (i.e., as specified in Condition III. 4.) shall be
submitted on the "Town of Cary NCWRF Bulk Reclaimed Water Distribution Program Daily
Monitoring Report" form on or before the last day of the month following the month that was
monitored_ Three copies of all effluent monitoring data (i.e., as specified in Condition 111. 2.) on Form
NDMR-1 shall be submitted on or before the last day of the month following the month that was
monitored. All information shall be submitted to the following address:
NC Division of Water Quality
Water Quality Section
Non -Discharge Compliance/Enforcement Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
0

IV.
5. Noncompliance Notification:
The Permittee shall report by telephone to the Raleigh Regional Office, telephone number (919) 571-
4700, as Boon 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 water reclamation facility which results in the treatment of significant
amounts of wastes which are abnormal in quantity or characteristic, such as the dumping of the
contents of a sludge digester; the known passage of a slug of hazardous substance through the
facility; or any other unusual circumstances.
b. Any process unit failure, due to known or unknown reasons, that render the facility incapable of
adequate wastewater treatment such as mechanical or electrical failures of pumps, aerators,
compressors, etc.
c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass directly to
receiving waters without treatment of all or any portion of the influent to such station or facility.
d. Any spill of reclaimed water from the bulk reclaimed water distribution facilities during filling,
from tank trucks during transport, or from tank trucks during application.
e. Any time that self -monitoring information indicates that the facility has gone out of compliance
with its permit limitations.
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 must outline the actions taken or
proposed to be taken to ensure that the problem does not recur.
1. Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to ensure proper
operation and management of the bulk reclaimed water distribution program and facilities.
2. The Permittee or his designee shall inspect the reclaimed bulk water distribution program and facilities
to prevent malfunctions and deterioration, operator errors and discharges which may cause or lead to
the release of wastes to the environment, a threat to human health, or a nuisance. The Permittee shall
keep an inspection log or summary including at least the date and time of inspection, observations
made, and any maintenance, repairs, or corrective actions taken by the Permittee. This log of
inspections shall be maintained by the Permittee for a period of three years from the date of the
inspection and shall be made available upon request to the Division or other permitting authority.
3. Any duly authorized officer, employee, or representative of the Division may, upon presentation of
credentials, enter and inspect any property, premises or place on or related to the bulk reclaimed water
distribution program or facilities at any reasonable time for the purpose of determining compliance
with this permit; may inspect or copy any records that trust be maintained under the terms and
conditions of this permit, and may obtain samples of groundwater, surface water, or leachate.
V. GENERAL CONDITIONS
This permit shall become voidable unless the bulk reclaimed water distribution program and facilities
are constructed and operated in accordance with the conditions of this permit, the approved plans and
specifications, and other supporting data.
2. This permit shall be effective only with respect to the nature and volume of reclaimed water described
in the application and other supporting data.

This permit shall not be transferable. In the event there is a desire for the bulk reclaimed water
distribution program and facilities to change ownership, or there is a name change of the Permittee, a
formal permit request shall be submitted to the Division accompanied by documentation from the
parties involved and other supporting materials as may be appropriate. The approval of this request
shall be considered on its merits and may or may not be approved.
4. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to
an enforcement action by the Division in accordance with North Carolina General Statute §143-215.6A
through § 143-215.6C.
The issuance of this permit shall not exempt the Permittee from complying with any and all statutes,
rules, regulations, or ordinances that may be imposed by other government agencies (i.e., local, state
and federal) which have jurisdiction, including but not limited to applicable river buffer rules in 15A
NCAC 2B .0200, erosion and sedimentation control requirements in 15A NCAC Ch. 4 and under the
Division's General Permit NCG0100000, and any requirements pertaining to wetlands under 15A
NCAC 2B .0200 and 15A NCAC 2H .0500.
6. The annual administering and compliance fee shall be paid by the Permittee within thirty days after
being billed by the Division. Failure to pay the fee accordingly may cause the Division to initiate
action to revoke this permit as specified by 15 NCAC 2H .0205 (c)(4).
7. The Permittee, at least six months prior to the expiration of this permit, shall request its extension.
Upon receipt of the request, the Division shall review the adequacy of the bulk reclaimed water
distribution program and facilities described therein, and if warranted, will extend the permit for such
period of time and under such conditions and limitations as it may deem appropriate.
8. This permit in no way negates, precludes, or invalidates NPDES Permit Number NC0048879, and the
Permittee shall continue to comply with all conditions provided for therein.
Permit issued thisourteenth day of May, 2001
NORT AROLIN NVIR NMENTAL MANAGEMENT COMMISSION
i.
Kerr T. Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0017064

Permit No. WQ0017064
May 14, 2001
ENGINEER'S CERTIFICATION
Partial Final
1, , as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full time) the construction and operation of the
project,
Project Name
Location and County
for the Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation of
the construction and operation such that it was observed to be conducted within substantial compliance and intent
of this permit, the approved plans and specifications, and other supporting materials.
Signature
Date
Registration No_