WQ0032515_Application_20200210

WATER MANAGEMENT
CITY OF DURHAM
January 23, 2020
North Carolina Department of Environmental Quality
Division of Water Resources
Water Quality Permitting Section
Non -Discharge Permitting unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
RECEPUED/NCDENWR
FEB � 0 2020
Non -Discharge
Permitting Unit
SUBJECT: Minor Permit modification request for permit number WQ0032515 (North Durham WRF)
The City of Durham requests that the sampling frequency for parameters in PP1 listed in permit number
WQ0032515 be modified to match the new sampling frequency for NPDES NCO023841(North Durham
WRF). The new NPDES permit became effective January 1, 2020 and reduces the effluent sampling
requirements from 5 days a week to 2 days a week. The City of Durham requests that WQ0032515
sampling frequency for the following parameters - BOD, Ammonia Nitrogen, and total suspended solids -
be changed to 2 days a week. The Limits page of NPDES NCO023841 is included for your reference.
If you have any questions or need additional information, please call me at 919-560-4384.
Sincerely,
nd4m
John Dodson
Superintendent
cc: John Young, Assistant Director for Operations and Maintenance
Vicki Westbrook, Assistant Director, Communications, Regulatory Compliance, Administration &
Planning
1600 Mist Lake Dr. Durham, NC 27704 ( 919.560.4381 I DurhamNC.gov I Follow Us @Cit o© rhamNC
�,el
a ,o-

-- s State of North Carolina
Department of Environmental Quality
Division of Water Resources :- --
15A NCAC 02U — RECLAIMED WATER SYSTEMS — PROJECT INFORMATION
Division of Water Resources INSTRUCTIONS FOR FORM: RWPI 06-16 & SUPPORTING DOCUMENTATION
Please use the following instructions as a checklist in order to ensure all required items are submitted. Adherence to these
instructions and checking the provided boxes will help produce a quicker review time and reduce the amount of additional
information requested. Failure to submit all of the required items will lead to additional processing and review time for the
permit application.
For more information, visit the Water Quality Permitting Section Non -Discharge Permitting Unit website.
General —This form is required for all projects involving the generation, utilization, and or distribution of reclaimed water. At least one
of the following forms must also be included in the application package. However, multiple forms may be applicable. Unless
otherwise noted, the Anifficant shall submit one original and two copies of the apolication and SuRportin
gr
documentation. Please check the boxes below as appropriate to indicate which additional forms are included in the
application package:
❑ Reclaimed Water Generation (FORM: RWG) — for wastewater treatment facilities producing reclaimed water.
❑ Non -Conjunctive Utilization (FORM: RWNC) — for reclaimed water utilization activities, when the reclaimed water
utilization activity is required in order to meet the wastewater disposal needs of the facility.
❑ Conjunctive Utilization (FORM: RWCU) — for reclaimed water utilization activities, when the reclaimed water option is
not necessary to meet the wastewater disposal needs of the facility and other wastewater utilization/disposal methods are
available.
❑ Bulk Distribution (FORM: RWBD) — for distribution of reclaimed water in a bulk manner.
❑ Distribution Lines (FORM: RWDL) — for construction of reclaimed water distribution lines.
❑ Wetland Augmentation (FORM: RWWA) — for projects seeking to utilize reclaimed water for the purpose of wetland
augmentation.
❑ Local Program Approval (FORM: RWLPA) — for projects seeking permitting delegation for reclaimed water users.
A. Cover Letter (All Application Packages):
❑ List all items included in the application package, as well as a brief description of the requested permitting action.
B. Application Fee (All New and Major Modification Application Packages):
❑ Submit a check, money order or electronic funds transfer made payable to: North Carolina Department of Environmental
Quality (NCDEQ) according to the following fee schedules:
❑ STANDARD REVIEW — Submit the appropriate fee for all new and major modification applications as listed in the table
below.
Facility Classification
Major Generator/User (ADF > 10,000 gallons per day)
Minor Generator/User (ADF < 10,000 gallons per day)
Reclaimed Water Distribution Lines
New Permit Major Modification 1
$395
$245
$480 1 N/A
A major modification shall be defined as any permit modification that: increases the generating facility's
average daily flow (ADF); increases the utilization area acreage; adds additional utilization areas not
previously approved; or includes the addition of new treatment units/processes not previously permitted.
There is no fee for minor permit modifications.
RECEIVEDNME0.l1YYR
FEB 1 0 2020
Non -Discharge
Permitting Unit
INSTRUCTIONS FOR FORM: RWPI 06-16 & SUPPORTING DOCUMENTATION Page 1 of 2

C. Reclaimed Water Project Information Form (FORM: RWPI 06-16) (All application packages):
❑ Submit the completed and appropriately executed Reclaimed Water Project Information (FORM: RWPI 06-16) form. Please
do not make any unauthorized content changes to this form.
❑ The applicant name in Item I.1. shall be consistent with the applicant name on the plans, specifications, agreements, etc.
❑ The Applicant's Certification on Page 3 of this form shall be signed in accordance with 15A NCAC 02T .0106(b). The
application must be signed by a principal executive officer of at least the level of vice-president or his authorized representative
for a corporation; by a general partner for a partnership or limited partnership; by the proprietor for a sole proprietorship;
and by either an executive officer, an elected official in the highest level of elected office, or other authorized employee for a
municipal, state, or other public entity. An alternate person may be designated as the signing official if a delegation letter is
provided from a person who meets the criteria in 15A NCAC 02T .0106(b).
❑ If this project is for a renewal without modification, use the Non -Discharge System Renewal (FORM: NDSR) application.
There is no fee for permit renewal without modification.
D. Existing Permit: (All Modification Packages):
® Submit the most recently issued existing permit.
® Provide a list of any items within the permit the Applicant would like the Division to address during the permit modification
(i.e., compliance schedules, permit description, monitoring, permit conditions, etc.).
ONE ORIGIANL AND TWO COPIES OF THE COMPLETED APPLICATION AND SUPPORTING DOCUMENTATION
SHALL BE SUBMITTED TO:
NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
WATER QUALITY PERMITTING SECTION
NON -DISCHARGE PERMITTING UNIT
By U.S. Postal Service:
1617 MAIL SERVICE CENTER
RALEIGH, NORTH CAROLINA 27699-1617
TELEPHONE NUMBER: [phone]
By Courier/Special Deliver
512 N. SALISBURY STREET
RALEIGH, NORTH CAROLINA 27604
FAX NUMBER: [phone]
INSTRUCTIONS FOR FORM: RWPI 06-16 & SUPPORTING DOCUMENTATION Page 2 of 2

Division of Water Resources
I. GENERAL INFORMATION:
State of North Carolina
Department of Environmental Quality
Division of Water Resources
15A NCAC 02U — RECLAIMED WATER SYSTEMS — PROJECT INFORMATION
FORM: RWPI 06-16
1. Applicant's name: City of Durham
Mailing address: 1900 East Club Blvd
City: Durham State: NC Zip: 27704-
Telephone number: 919) 560-4384 Email Address:
2. Signature authority's name: Don Greeley (per 15A NCAC 2U .0106.]
3. Applicant type (check all that apply):
❑ Government )p ❑ Federal ❑ State
❑ Individual
❑ Corporation
RECEIVEDINCDECIDWF�
FEB i 0 2020
Non -Discharge
Permitting Unit
Title: Director
® Municipal ❑ County
✓ For new permits, submit documentation that the company is registered for business with the NC Secretary of State.
❑ General Partnership
✓ For new permits, submit a copy of the certificate filed with the Register of Deeds in the county of business.
❑ Privately Owned Public Utility
✓ For new permits, submit a Certificate of Public Convenience and Necessity from the NC Utilities Commission or a
letter from the NC Utilities Commission's Water and Sewer Division Public Staff stating an application for a
franchise has been received and that the service area is contiguous to an existing franchised area or that franchise
approval is expected.
❑ Home Owners Association
✓ For new permits, submit a properly executed Operational Agreement (FORM: HOA); and proposed or approved
Articles of Incorporation, Declarations and By-laws.
❑ Developer (where residential lots are to be sold)
✓ For new permits, submit a properly executed Operational Agreement (FORM: DEV i
4. Demonstration of historical consideration for permit approval:
Has the Applicant or any parent, subsidiary or other affiliate exhibited the following?
a. Has been convicted of environmental crimes under Federal law or G.S. 143-215.613? ElYes or ff No
b. Has previously abandoned a wastewater treatment facility without properly closing that facility? ❑ Yes or EfNo
c. Has unpaid civil penalty where all appeals have been abandoned or exhausted? ❑ Yes or E]rNo
d. Is non -compliant with an existing non -discharge permit, settlement agreement or order? ❑ Yes or []7No
e. Has unpaid annual fees in accordance with 15A NCAC 02T .0105(e)f21? ❑ Yes or E✓]/No
FORM: RWPI 06-16 Page 1 of 3

II. PROJECT INFORMATION
1. Application type: Minor Modification (See Instruction B) Fee Submitted$0.00 (See Instruction B)
2. For modifications, provide the existing permit number: WQ0032515 and most recent issuance date: 12/28/2016
3. Provide a brief description of the activities proposed for permitting: The sampling requirements for NPDES Permit number
NCO023841 have chanized from 5 x week to 2 x week. We are reguesting W 0032515 be modified to align the monitoring
requirements for PP to the same measuring frequency as NPDES NCO023841
4. What is the status of the following associated permits and/or certifications ? (if not applicable, please mark as N/A)
Permit/Certification
Date Submitted
Date Approved
Permit/Certification No.
Agency Reviewer
Collection System >
200.000 GPD
N/A
Dam Safety
N/A
Erosion & Sedimentation
Control Plan
N/A
Nationwide 12 / Section 404
N/A
Pretreatment
N/A
Sewer System
N/A
Stormwater Management Plan
N/A
Other:
N/A
✓ For any of the permits and certifications listed above that will directly impact the construction of the proposed reclaimed
water project, please provide documentation of permit approval or final certification. Note: This application may be
considered incomplete, or the resulting permit may be issued conditionally if a pending issuance of any of the related
permits/certifications directly impacts the proposed facility.
5. Documentation of the presence or absence of threatened or endangered aquatic species at the project site utilizing information
provided by the Department's Natural Heritage Program is required for construction of all new WWTP projects and/or non -
conjunctive utilization sites, and for any project involving expansion of a WWTP and/or non -conjunctive utilization site in
accordance with 15A NCAC 02T .0105(c)(10). Provide the location in application package where this documentation is
located: ; or explain why this item is N/A.
6. Does this project utilize public monies or lands? ❑ Yes or ❑ No
✓ If yes, was an Environmental Assessment required under 15A NCAC 01C?
Yes ❑ No
Include one of the following final environmental documents with this submittal:
❑ Finding of No Significant Impact, or ❑ Record of Decision
Describe any mitigating factors from the Environmental Assessment that impact the design and/or construction of the
reclaimed water project:
7. Is any portion of the proposed project (reclaimed water treatment units, storage units, distribution lines, or utilization areas)
located within the 100 year flood plain? ❑ Yes or ❑ No
✓ If yes, specify which portion(s) of the project are affected?
✓ If yes, has the Applicant submitted written documentation of compliance with s 143 Article 21 Part 6? ❑ Yes or ❑ No
Documentation should consist of a letter from the local authority (i.e., county/municipality) stating that the project
complies with any local floodplain ordinance that may apply.
FORM: RWPI 06-16 Page 2 of 3

Applicant's Certification (signing authority must be in compliance with 15A NCAC 02U .0106):
Director, Water Management
(signing authority name — PLEASE PRINT) (title)
attest that this application for North Durham Water Reclamation Facility
(facility name)
has been reviewed by me and is accurate and complete to the best of my knowledge. I understand that any discharge of wastewater
from this non -discharge system to surface waters or the land will result in an immediate enforcement action that may include civil
penalties, injunctive relief, and/or criminal prosecution. I will make no claim against the Division of Water Resources should a
condition of this permit be violated. I also understand that if all required parts of this application package are not completed and that
if all required supporting information and attachments are not included, this application package will be returned to me as incomplete.
I further certify that the applicant or any affiliate has not been convicted of an environmental crime, has not abandoned a wastewater
facility without proper closure, does not have an outstanding civil penalty where all appeals have been exhausted or abandoned, are
compliant with any active compliance schedule, and do not have any overdue annual fees under Rule 15A NCAC 02U .0105. Note:
In accordance with NC General Statutes 143-215.6A and 143-215.6B, any person who knowingly makes any false statement,
representation, or certification in any application package shall be guilty of a Class 2 misdemeanor, which may include a fine not to
exceed $10,000 as well as civil penalties up to $25,000 per violation.
Signature: Date:
FORM: RWPI 06-16 Page 3 of 3

Permit NCO023841
Part I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
_ [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Grade IV Biological Water
Pollution Control System j15A NCAC 08G .0302]
During the period beginning
on the effective date of the permit and lasting until expiration, the Permittee is
authorized to discharge treated municipal wastewater from outfall 001.
Such discharges shall be limited and
monitored' b:_ the Permittee asspecified below:
PARAMETER
EFFLUENT LIMITS
MONITORING REQUIREMENTS
Parameter Cade Monthly Weekly Daily
Measurement Sample
Sample
Average Average Maximum
Frequency
Type
location
Flow - - - - 50050 20.0 MGD
Continuous
Recording
I or E
Total Monthly Flow,
82220 Monitor and Report
MG/monthMonthly
Calculated
E
BODs (20°C) 3
C0310 5.0 mg/L 7.5 mg/L
(April 1- October 31)
2/Weed
Composite
I and E
BODs (20°C) 3
C0310
(November 1 - March 31)
10.0 mg/L 15.0 mg/L
2/Week4
Comte
po '
I and E
Total Suspended Solids
(TSS) 3 CO530
30.0 m /L 45.0 m L
9 g/
2/Week'
Composite
I and E
Ammonia (NH3 as N) CO610
(April 1 - October 31)
1.0 mg/L 3.0 mg/L
2/Week4
Composite
E
Ammonia (NH3 as N)
CO610
�- (November 1 - March 31)
2.0 mg/L 6.0 mg/L
2/Week4
Composite
E
Dissolved Oxygen 00300
Daily Average >_ 7.0 mg/L
Daily
Grab E
Fecal Coliform 31616
(geometric mean)
200/100 mL 400/100 mL
2/Week4
Grab
E
Temperature (°C) 00010
Daily
Grab
E
Conductivity, umhos/cm 00094
Daily
Grab
E
Total Residual Chlorine
UP 50060
17 pg/L
Between 6.0 and 9.0 standard units
Daily
Daily
Grab
Grab
E
pH 00400
E
TKN, mg/L6 00625
Monitor and Report
Weekly
Composite
E
NO2-N + NO3-N, mg/L6 00630
Monitor and Report
Weekly
Composite
E
Total Nitrogen, mg/L6 COb00
Monitor and Report
Weekly
Composite
E
E
QM600 Monitor and Report (lb/mo) Monthly Calculated
TN Load'.s
Q11600
97,665 ib/year
Annually
Calculated
E
Total Phosphorus9 C0665
(April — September]
0.5 mg/L (Quarterly A verage)
Weekly
Composite
E
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