NC0025712_Draft Permit_20180711

ROY COOPER
'� Governor
N
a
MICHAEL S. REGAN
Secretary
Water Resources LINDA CULPEPPER
ENVIRONMENTAL QUALITY Interim Director
July 11,2018
Mr.Bobby Taylor
Town of Hookerton
P.O.Box 296
Hookerton,NC 28538-0296 Subject: NPDES Draft Permit NC0025712
Town of Hookerton WWTP
Grade I Biological WPCS
Greene County
Dear Mr.Taylor:
The Division has reviewed your request to renew the subject permit. Please review this draft carefully to ensure a
thorough understanding of the information, conditions,and requirements it contains.
The draft permit includes no significant changes from the existing permit.
> Ownership and facility name were updated
> HUC and Stream Index numbers were added
> Updated outfall map
With this notification,the Division will solicit public comment on this draft permit by publishing a notice in
newspapers having circulation in the general Greene County area,per EPA requirements.Please provide your
comments,if any,to me no later than 30 days after receiving this draft permit.
Following the 30-day public comment period,the Division will review all pertinent comments and take
appropriate action prior to issuing a final permit. If you have questions concerning the draft,please contact me at
the telephone number listed at the bottom of this page, or via e-mail [[e-mail]].
Sincerely,
,,,,,,,..„.3 Lear_
Emily DelDuco
Environmental Specialist II
NPDES Program
cc: NPDES Unit
1617 Mail Service Center,Raleigh,North Carolina 27699-1617 512 North Salisbury Street,Raleigh,North Carolina 27604
Phone: [phone]/FAX [phone]/http:/lportal.ncdenr.org/weblwq
An Equal Opportunity/Affirmative Action Employer—50%Recycled/10%a Post Consumer Paper

Permit NC0025712
Grade I Biological WPCS [15A NCAC 08G .0302]
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General Statute 143-215.1,other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the
Federal Water Pollution Control Act, as amended,the
Town of Hookerton
is hereby authorized to discharge wastewater from a facility located at the
Hookerton Wastewater Treatment Plant
NC Highway 123
Hookerton
Greene County
to receiving waters designated as Contentnea Creek in the Neuse River Basin in accordance with
effluent limitations,monitoring requirements, and other conditions set forth in Parts I, II, III and IV
hereof.
This permit shall become effective 2018.
This permit and authorization to discharge shall expire at midnight on May 31, 2023.
Signed this day 2018.
Linda Culpepper, Interim Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 8

Permit NC0025712
Grade I Biological WPCS [15A NCAC 08G .0302]
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility,whether for operation or discharge are hereby revoked.As of this
permit issuance,any previously issued permit bearing this number is no longer effective.Therefore,the exclusive authority
to operate and discharge from this facility arises under the permit conditions,requirements,terms,and provisions included
herein.
The Town of Hookerton is hereby authorized to:
1. Continue to operate an existing 0.060 MGD wastewater treatment plant that includes the
following components:
• influent bar screen
• three cell lagoon with adjustable effluent baffles and a small
surface aerator in the third cell
The facility is located on NCHighway 123,North of Hookerton, Greene County.
2. The greenhouse constructed on the property is currently inactive. A permit modification will
be required if the greenhouse returns to use in the future.
3. Discharge from said treatment works via Outfall 001 at the location on the attached map, into
Contentnea Creek[Stream Index: 27-86-(7)], currently classified C-Swamp NSW waters
within the Neuse River Basin [HUC: 030202030703].
Page 2 of 8

Permit NC0025712
Grade I Biological WPCS [15A NCAC 08G .0302]
Part I.
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is
authorized to discharge from outfall 001. Such discharges shall be limited and monitored' by the Permittee as
specified below:
EFFLUENT LIMITATIONS MONITORING REQUIREMENTS
PARAMETER Monthly Weekly Daily Measurement Sample Sample
Average Average Maximum Frequency Type Location 2
Flow(MGD) 0.060 Continuous Recording Influent or
[50050] Effluent
Total Monthly Flow(MG) Recorded or Influent or
[82220] Monitor&Report Monthly Calculated Effluent
BOD53[C0310] 30.0 mg/L 45.0 mg/L 2/Month Influent,
Grab Effluent
Total Suspended Solids 3 90.0 mg/L 135.0 mg/L 2/Month Grab Influent,
[C0530] Effluent
NH3 as N Monthly Grab Effluent
[C0610]
Dissolved Oxygen
[00300] Monitor&Report(mg/L) Weekly Grab U,D
Fecal Coliform
[31616] 200/100 mL 400/100 mL 2/Month Grab Effluent
Total Residual Chlorine
(TRC)4 [50060] 28 ug/L 4 2/Week Grab Effluent
Temperature(°C)
[00010] Weekly Grab U,D
TN(mg/L)5[CO600] Monitor&Report 2/Month Grab Effluent
(NO2-N+NO3-N+TKN)
TN Load 6 Monitor&Report(lb/month) Monthly Calculated Effluent
[QM600&QY600] Monitor&Report(lb/yr) Annually Calculated Effluent
Total Phosphorus
[C0665] Monitor&Report(mg/L) 2/Month Grab Effluent
pH Between 6.0 and 9.0 Standard Units Weekly Grab Effluent
[00400]
Footnotes:
1 The permittee shall submit discharge monitoring reports electronically using the Division's eDMR system[see A. (6)]
2 .U:Upstream at Hwy 13/258 ,D:Downstream at Hwy 123. See condition A. (2)of this permit for instream monitoring
requirements.
3 The monthly average BODS and Total Suspended Solids concentrations shall not exceed 15%of the respective influent
value(i.e.,85%removal required).
•
Page 3 of 8

Permit NC0025712
Grade I Biological WPCS [15A NCAC 08G .0302]
4 TRC--Effluent monitoring and limit apply only if chlorine or a chlorine derivative is added.Because low-level TRC is
currently difficult to quantify in a wastewater matrix,the Division shall consider all effluent TRC values reported below
50µg/L to be"in compliance"with the permit.However,the Permittee shall continue to record and submit all values
reported using North Carolina-certified field and lab test methods,even if these values fall below 50µg/L.
5 For a given wastewater sample,TN=TKN+NO3-N+NO2-N,where TN is total nitrogen,TKN is total Kjeldahl
Nitrogen,and NO3-N and NO2-N are nitrate and nitrite nitrogen,respectively.
6 TN load is the mass quantity of total nitrogen discharged in a given time period. See condition A. (4)of this permit.
The Permittee shall discharge no floating solids or foam visible in other than trace amounts.
A. (2) INSTREAM MONITORING REQUIREMENTS
[15A NCAC 02B .0500 et seq.]
Instream monitoring is required for the following parameters at the locations specified:
EFFLUENT - Measurement Sample Sample
. CHARACTERISTICS - Frequency Type Locations
•
Dissolved Oxygen June-Sept 1/week
Grab U,D
October-May 1/week
Temperature°C June-Sept 1/week
Grab U,D
October-May 1/week
Footnotes:
1. U:Upstream at Hwy 13/258. D:Downstream at Hwy 123.
A. (3) CALCULATION OF TOTAL NITROGEN LOADS
[G.S. 143-215.1(b)]
a. The Permittee shall calculate monthly and annual TN Loads as follows:
i. Monthly TN Load(lb/mo)=TN x TMF x 8.34
where:
TN = the average Total Nitrogen concentration(mg/L) of the
composite samples collected during the month
TMF = the Total Monthly Flow of wastewater discharged during the
month(MG/mo)
8.34 = conversion factor, from (mg/L x MG)to pounds
u. Annual TN Load (lb/yr) =Sum of the 12 Monthly TN Loads for the calendar year
Page 4 of 8

Permit NC0025712
Grade I Biological WPCS [15A NCAC 08G .0302]
b. The Permittee shall report monthly Total Nitrogen results (mg/L and 1b/mo) in the discharge
monitoring report for that month and shall report each year's annual results (1b/yr) in the December
report for that year.
A. (4.) ANNUAL LIMITS FOR TOTAL NITROGEN
[G.S. 143-215.1(b)]
a. Total Nitrogen(TN) allocations and TN Load limits for NPDES dischargers in the Neuse River basin apply
on a calendar year basis.
b. For any given calendar year,the Permittee shall be in compliance with the annual TN Load limit in this
Permit if:
(i.) the Permittee's annual TN discharge is less than or equal to its TN Load limit, or
(ii.) the Permittee is a co-permittee member of a compliance association.
c. The TN Load limit in this Permit(if any)may be modified as the result of allowable changes in the
Permittee's TN allocation.
i. Allowable changes include those resulting from purchase of TN allocation from the Wetlands
Restoration Fund;purchase, sale,trade, or lease of allocation between the Permittee and other
dischargers;regionalization; and other transactions approved by the Division.
ii. The Permittee may request a modification of the TN Load limit in this Permit to reflect allowable
changes in its TN allocation.Upon receipt of timely and proper application,the Division will modify
the permit as appropriate and in accordance with state and federal program requirements.
iii. Changes in TN limits become effective on January 1 of the year following permit modification.The
Division must receive application no later than August 31 for changes proposed for the following
calendar year.
iv. Application shall be sent to:
NCDWR/NPDES Program
Attn:Neuse River Basin Coordinator
1617 Mail Service Center
Raleigh,NC 27699-1617
d. If the Permittee is a member and co-permittee of an approved compliance association,its TN discharge
during that year is governed by that association's group NPDES permit and the TN limits therein.
i. The Permittee shall be considered a Co-Permittee Member for any given calendar year in which it is
identified as such in Appendix A of the association's group NPDES permit.
ii. Association roster(s) and members'TN allocations will be updated annually and in accordance with
state and federal program requirements.
iii. If the Permittee intends to join or leave a compliance association,the Division must be notified of the
proposed action in accordance with the procedures defined in the association's NPDES permit.
(A) Upon receipt of timely and proper notification,the Division will modify the permit as appropriate
and in accordance with state and federal program requirements.
(B) Membership changes in a compliance association become effective on January 1 of the year
following modification of the association's permit.
Page 5 of 8

Permit NC0025712
Grade I Biological WPCS [15A NCAC 08G .0302]
e. The TN monitoring and reporting requirements in this Permit remain in effect until expiration of this Permit
and are not affected by the Permittee's membership in a compliance association.
A. (5) TOTAL NITROGEN ALLOCATIONS
[G.S. 143-215.1(h)]
a. The following table lists the Total Nitrogen(TN)allocation(s) assigned to, acquired by, or transferred to the
Permittee in accordance with the Neuse River nutrient management rule(T15A NCAC 02B .0234) and the
status of each as of permit issuance.For compliance purposes,this table does not supercede any TN limit(s)
established elsewhere in this permit or in the NPDES permit of a compliance association of which the
Permittee is a Co-Permittee Member.
ALLOCATION ALLOCATION AMOUNT(')
TYPESOURCE DATE STATUS
Estuary(lb/yr) Discharge(Ib/yr)
Base Assigned by Rule 12/7/97; 607 1,213 Active
(T15A NCAC 02B 4/1/03
.0234)
Footnote:
(1) Transport Factor=50%
Any addition, deletion, or modification of the listed allocation(s)(other than to correct typographical errors)or
any change to Active status of any of the listed allocations shall be considered a major modification of
this permit and shall be subject to the public review process afforded such modifications under state and
federal rules.
A. (6) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
[G.S. 143-215.1(b)]
Proposed federal regulations require electronic submittal of all discharge monitoring reports (DMRs)
and specify that, if a state does not establish a system to receive such submittals, then permittees must
submit DMRs electronically to the Environmental Protection Agency(EPA). The Division anticipates
that these regulations will be adopted and is beginning implementation.
NOTE: This special condition supplements or supersedes the following sections within Part II of this
permit(Standard Conditions for NPDES Permits):
• Section B. (11.)Signatory Requirements
• Section D. (2.)Reporting
• Section D. (6.)Records Retention
• Section E. (5.)Monitoring Reports
1. Reporting [Supersedes Section D. (2.) and Section E. (5.) (a)1
The permittee shall report discharge monitoring data electronically using the NC DWR's Electronic
Discharge Monitoring Report(eDMR) internet application.
Page 6 of 8

Permit NC0025712
Grade I Biological WPCS [15A NCAC 08G .0302]
Monitoring results obtained during the previous month(s) shall be summarized for each month and
submitted electronically using eDMR. The eDMR system allows permitted facilities to enter monitoring
data and submit DMRs electronically using the internet. Until such time that the state's eDMR
application is compliant with EPA's Cross-Media Electronic Reporting Regulation(CROMERR),
permittees will be required to submit all discharge monitoring data to the state electronically using
eDMR and will be required to complete the eDMR submission by printing, signing, and submitting one
signed original and a copy of the computer-printed eDMR to the following address:
NC DENR/Division of Water Resources/Information Processing Unit
ATTENTION: Central Files/eDMR
1617 Mail Service Center
Raleigh,NC 27699-1617
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility
being physically located in an area where less than 10 percent of the households have broadband access,
then a temporary waiver from the NPDES electronic reporting requirements may be granted and
discharge monitoring data may be submitted on paper DMR forms (MR 1, 1.1, 2, 3) or alternative forms
approved by the Director. Duplicate signed copies shall be submitted to the mailing address above.
Requests for temporary waivers from the NPDES electronic reporting requirements must be submitted
in writing to the Division for written approval at least sixty(60) days prior to the date the facility would
be required under this permit to begin using eDMR. Temporary waivers shall be valid for twelve(12)
months and shall thereupon expire. At such time, DMRs shall be submitted electronically to the
Division unless the permittee re-applies for and is granted a new temporary waiver by the Division.
Information on eDMR and application for a temporary waiver from the NPDES electronic reporting
requirements is found on the following web page:
http://portal.ncdenr.org/web/wq/admin/bog/ipu/edmr
Regardless of the submission method, the first DMR is due on the last day of the month following the
issuance of the permit or in the case of a new facility, on the last day of the month following the
commencement of discharge.
2. Signatory Requirements [Supplements Section B. (11.) (b) and supersedes Section B. (11.)
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II,
Section B. (11.)(a) or by a duly authorized representative of that person as described in Part II, Section
B. (11.)(b). A person, and not a position, must be delegated signatory authority for eDMR reporting
purposes.
For eDMR submissions,the person signing and submitting the DMR must obtain an eDMR user account
and login credentials to access the eDMR system. For more information on North Carolina's eDMR
Page 7 of 8

Permit NC0025712
Grade I Biological WPCS [15A NCAC 08G .0302]
system,registering for eDMR and obtaining an eDMR user account,please visit the following web
page:
http://portal.ncdenr.org/web/wq/admin/bog/ipuiedmr
Certification. Any person submitting an electronic DMR using the state's eDMR system shall make the
following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION WILL
BE ACCEPTED:
"I certify,under penalty of law,that this document and all attachments were prepared under my
- direction or supervision in accordance with a system designed to assure that qualified personnel properly
gather and evaluate the information submitted. Based on my inquiry of the person or persons who
manage the system, or those persons directly responsible for gathering the information, the information
submitted is, to the best of my knowledge and belief,true, accurate, and complete. I am aware that there
are significant penalties for submitting false information, including the possibility of fines and
imprisonment for knowing violations."
3. Records Retention [Supplements Section D. (6.)1
The permittee shall retain records of all Discharge Monitoring Reports, including eDMR submissions.
These records or copies shall be maintained for a period of at least 3 years from the date of the report.
This period may be extended by request of the Director at any time [40 CFR 122.41].
Page 8 of 8

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NPDES Permit NC0025712 115,000.000 ♦$
ReceivingStream:Contentnea Creek r
Stream Class:C;Sw,NSW
Stream Segment:27-8647) Sub-Basin#:03-04-07
River Basin:Neuse River HUC:030202030703 SCALE 35.428333°N, -77.590833°W
County:Greene 1:20,000