HomeMy WebLinkAboutNC0062715_Draft Permit_20171220Water Resources
ENVIRONMENTAL QUALITY
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
Interim Director
December 20, 2017
Mr. Shannon Becker
Aqua North Carolina, Inc.
202 Mackenan Court
Cary, NC 27511
Subject: Draft NPDES Permit NCO062715
Crooked Creek WWTP
Wake County
Class WW -2
Dear Permittee:
The Division has reviewed your request to renew the subject permit. Please review this draft
carefully to ensure your thorough understanding of the information, conditions, and
requirements it contains.
The draft permit includes the following significant changes from the existing permit:
➢ Section A. (5.) has been added to require electronic submission of effluent data.
Federal regulations require electronic submittal of all discharge monitoring
reports (DMRs).
➢ Regulatory citations have been added to the permit.
➢ An updated outfall map has been included.
With this notification, the Division will solicit public comment on this draft permit by
publishing a notice in newspapers having circulation in the general Wake 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 any questions
concerning this permit, please contact Emily Phillips at (919) 807-6479.
cc: NPDES files
Sincer ,
S
Emily Phillips
Compliance and Expedited Permitting Unit
State of North Carolina I Environmental Quality I Water Resources
1617 Mail Service Center I Raleigh, NC 27699-1617
919 807 6300 919-807-6389 FAX
https.//deq nc gov/about/divisions/water-resources/water-resources-permits/wastewater-branch/npdes-wastewater-permits
Permit NCO062715
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,
Aqua North Carolina, Inc.
is hereby authorized to discharge wastewater from a facility located at the
Crooked Creek Subdivision WWTP
Off Johnson Pond Road (NCSR 1404)
Northeast of Fuquay-Varina
Wake County
to receiving waters designated as Middle 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
This permit and authorization to discharge shall expire at midnight on April 30,
2023.
Signed this day
DRAFT
Linda Culpepper
Interim Director, Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 8
Permit NCO062715
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.
Aqua North Carolina, Inc.
is hereby authorized to:
1. Continue to operate an existing 0.150 MGD wastewater treatment system
consisting of two extended aeration activated sludge package treatment plants,
one rated for 0.050 MGD and one rated for 0.100 MGD followed by a common
tertiary treatment system, with the following components:
♦ Sludge Storage Tanks
♦ Influent Flow Equalization Tank
♦ Ferrous Sulfate Feed System
♦ Influent Flow Splitter Box
♦ Aeration Tanks (Aerobic Digesters)
♦ Aeration Blowers
♦ Clarifiers
♦ Effluent Dual Media Gravity Filter System
♦ Effluent Flow Recorder System
♦ Effluent Ultraviolet Light Disinfection
♦ Effluent Composite Sampler
♦ SCADA System
♦ Standby Power Generator
The facility is located northeast of Fuquay-Varina, at the Crooked Creek
Subdivision WWTP, off of Johnson Pond Road (NCSR 1404) in Wake County.
2. Discharge from said treatment works at the location specified on the attached map
into Middle Creek, currently classified C; NSW waters in the Neuse River Basin.
Page 2 of 8
Permit NCO062715
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 this permit and lasting until expiration,
the Permittee is authorized to discharge from outfall 001. Such discharges shall be limited
and monitored5 by the Permittee as specified below:
EFFLUENT CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly Daily
MeasurementERecordin
Sample
Parameter Code
Average Maximum
Frequency
Location 1
Flow 50050
0.150 MGD
Continuous
Effluent
Total Monthly Flow (TMF) 82220
Monitor & Report
Monthly
Calculate
Effluent
MG/Month
d
BOD, 5 -day (20°C) C0310
5.0 mg/L
7.5 mg/L
Weekly
Composit
Effluent
(April 1 — October 31
e
BOD, 5 -day (20°C)
Composit
(November 1— March C0310
10.0 mg/L
15.0 mg/L
Weekly
Effluent
31
a
Total Suspended Solids (TSS) C0530
30.0 mg/L
45.0 mg/L
Weekly
Comeposit
Effluent
NH3 as N C0610
2.0 mg/L
10 0 mg/L
Weekly
Composit
Effluent
(April 1 — October 31
e
NH3 as N C0610
4.0 mg/L
20.0 mg/L
Weekly
Composit
Effluent
November 1 — March 31
e
Dissolved Oxygen 2 00300
Weekly
Grab
Effluent,
Temperature (°C) 00010
Monitor & Report
Daily
Grab
Effluent
Fecal Coliform
31616
200 / 100 ml
400/100
Weekly
Grab
Effluent
(geometric mean
ml
Dissolved Oxygen 00300
Monitor & Report (mg/L)
Weekly
Grab
Upstream &
Downstream
Temperature (°C) 00010
Monitor & Report
Weekly
Grab
Upstream &
Downstream
Total Kjeldahl Nitrogen (TKN) 00625
Monitor & Report (mg/L)
2/Month
Comeposit
Effluent
Nitrite/Nitrate Nitrogen 00630
Monitor & Report (mg/L)
2/Month
Composit
Effluent
(NO2-N + NO3-N)
e
Total Nitrogen (TN) 3 C0600
Monitor & Report (mg/L)
2/Month
Calcdulate
Effluent
QM600
Monitor & Report (lbs/mo)
Monthly
Calcdulate
Effluent
TN Load a
Calculate
QY600
Monitor & Report (lbs/yr)
Annually
d
Effluent
Total Phosphorus (TP) C0665
Monitor & Report (mg/L)
2/Month
Comeposit
Effluent
pH 00400
>— 6.0 and <— 9.0 std. units
Weekly
Grab
Effluent
Page 3 of 8
Permit NCO062715
Footnotes:
1. Upstream = at least 100 feet upstream from the outfall. Downstream = at least 300 feet
downstream from the outfall.
2. The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/ L.
3. For a given wastewater sample, TN = TKN + (NO2-N + NO3-N), where TN is Total Nitrogen, TKN is
Total Kjeldahl Nitrogen, and (NO2-N + NO3-N) is Nitrite/Nitrate Nitrogen.
4. TN Load is the mass load of Total Nitrogen discharged in a given period of time. See Special
Condition A. (2.), Calculation of TN Loads.
5. The Permittee shall submit discharge monitoring reports electronically using the Division's eDMR
system [see A. (5.).
See Condition A. (4.) for instructions should the facility's permitted UV system fail and an alternate
means of disinfection is required.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
A. (2.) 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
ii. Annual TN Load (lb/yr) = Sum of the 12 Monthly TN Loads for the calendar
year
b. The Permittee shall report monthly Total Nitrogen results (mg/L and lb/mo) in the
appropriate discharge monitoring report for each month and shall report each year's
results (lb/yr) with the December report for that year.
A. (3.) TOTAL NITROGEN ALLOCATIONS
[G. S. 143-215.1(b)]
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 supersede 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.
Page 4 of 8
Permit NCO062715
ALLOCATION
ALLOCATION AMOUNT (1)
SOURCE
DATE
STATUS
Estuary (Ib/yr)
Discharge (Ib/yr)
TYPE
Base
Assigned by Rule
12/7/97;
1,517
3,033
Active
(T15A NCAC 02B 0234)
4/1/03
TOTAL
1,517
3,033
Active
Footnote:
(1) Transport Factor = 50%
b. 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. (4.) TEMPORARY MEANS OF DISINFECTION
[NCGS 143-215.1(a)]
In the event that the wastewater treatment plant's ultraviolet (UV) disinfection system
should fail, underperform, or otherwise be removed from effective service, the permittee or
his agent should immediately inform the Surface Water Protection Section staff of the
Raleigh Regional Office of this development and discuss temporary, alternate means for
disinfection of the effluent.
If chlorine compounds are used as temporary means of disinfection, the total residual
chlorine (TRC) concentration of the effluent must be monitored on a daily basis while this
method of disinfection is in use and values must be reported on the discharge monitoring
report. TRC in the effluent may not exceed 28 µg/L; therefore, dechlorination methods may
also be necessary to ensure protection of water quality in the receiving stream.
In the event that TRC monitoring should occur, the Division shall consider all effluent TRC
values reported below 50 pg/L to be in compliance with the permit. However, the Permittee
shall continue to record and submit all values reported by a North Carolina certified
laboratory (including field certified), even if these values fall below 50 pg/L.
Use of a disinfection system other than the permitted UV system during circumstances not
deemed as emergency and/or temporary (replacement of lamps, lamp cleaning or
maintenance, etc.) will be considered a violation of the terms of this permit.
A. (5.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
Page 5 of 8
Permit NCO062715
[NCGS 143-215.1 (b)]
Federal regulations require electronic submittal of all discharge monitoring reports (DMRs)
and program reports. The final NPDES Electronic Reporting Rule was adopted and became
effective on December 21, 2015.
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 Requirements [Supersedes Section D. (2.1 and Section E. (5.) (all
The permittee shall report discharge monitoring data electronically using the NC DWR's
Electronic Discharge Monitoring Report (eDMR) internet application.
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 / Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 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. See "How to
Request a Waiver from Electronic Reporting" section below.
Regardless of the submission method, the first DMR is due on the last day of the month
following the issuance of the p--rmit or in the case of a new facility, on the last day of the
month following the commencement of discharge.
Starting on December 21, 2020, the permittee must electronically report the following
compliance monitoring data and reports, when applicable:
Sewer Overflow/Bypass Event Reports;
Pretreatment Program Annual Reports; and
Page 6 of 8
Permit NCO062715
• Pretreatment Program Annual Reports; and
• Clean Water Act (CWA) Section 316(b) Annual Reports.
The permittee may seek an electronic reporting waiver from the Division (see "How to
Request a Waiver from Electronic Reporting" section below).
2. Electronic Submissions
In accordance with 40 CFR 122.41(l)(9), the permittee must identify the initial recipient
at the time of each electronic submission. The permittee should use the EPA's website
resources to identify the initial recipient for the electronic submission.
Initial recipient of electronic NPDES information from NPDES-regulated facilities means
the entity (EPA or the state authorized by EPA to implement the NPDES program) that is
the designated entity for receiving electronic NPDES data [see 40 CFR 127.2(b)].
EPA plans to establish a website that will also link to the appropriate electronic reporting
tool for each type of electronic submission and for each state. Instructions on how to access
and use the appropriate electronic reporting tool will be available as well. Information on
EPA's NPDES Electronic Reporting Rule is found at:
https: / /www.federalregister.gov/ documents/ 2015 / 10 / 22/ 2015-24954 / national-pollutant-
dischar/e-elimination-system-npdes-electronic-reporting-rule
Electronic submissions must start by the dates listed in the "Reporting Requirements"
section above.
3. How to Request a Waiver from Electronic Reporting
The permittee may seek a temporary electronic reporting waiver from the Division. To
obtain an electronic reporting waiver, a permittee must first submit an electronic
reporting waiver request to the Division. Requests for temporary electronic reporting
waivers 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
submitting monitoring data and reports. The duration of a temporary waiver shall not
exceed 5 years and shall thereupon expire. At such time, monitoring data and reports
shall be submitted electronically to the Division unless the permittee re -applies for and is
granted a new temporary electronic reporting waiver by the Division. Approved electronic
reporting waivers are not transferrable. Only permittees with an approved reporting
waiver request may submit monitoring data and reports on paper to the Division for the
period that the approved reporting waiver request is effective.
Information on eDMR and the application for a temporary electronic reporting waiver are
found on the following web page:
http: / / deg.nc. gov /about/ divisions/water-resources / edmr
Page 7 of 8
Permit NCO062715
4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B.
(11.) (d)j
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 system, registering for eDMR and obtaining an
eDMR user account, please visii the following web page:
http: / /deg.nc.gov/about/divisions/water-resources/edmr
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."
5. Records Retention [Supplements Section D. (6.)j
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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Aqua North Carolina, Inc. Facility
Crooked Creek WWTP Location
Receiving Stream: Middle Creek Sub -basin: 03-04-03
Latitude: 359 38' 29" N Stream Class: C, NSW NPDES Permit NCO062715
Longitude: 789 44' 28" W North Wake Count