NC0071242_Draft Permit_20200520

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH
Director
Mr. Tony Konsul, Director of Operations
Carolina Water Service Inc. of North Carolina
P.O. Box 240908
Charlotte, NC 28224-0908
Dear Mr. Konsul,
NORTH CAROLINA
Environmental Quality
May 8, 2020
Subject: Draft NPDES Permit NCO071242
Riverpointe WWTP
Grade II Biological WPCS
Mecklenburg County
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 the following significant changes from the existing permit:
➢ Section A. (5) has been updated regarding electronic submission of effluent data. Federal regulations
require electronic submittal of all discharge monitoring reports (DMRs).
➢ Regulatory citations have been added to the permit.
➢ Table 1 and Table 2 footnotes and parameter codes have been updated.
Please note that the Catawba River (Lake Wylie) is listed as an impaired waterbody on the North Carolina 303(d)
Impaired Waters List. Addressing impaired waters is a high priority with the Division, and instream data will
continue to be evaluated. If there is noncompliance with permitted effluent limits and stream impairment can be
attributed to your facility, then mitigative measures may be required.
The NPDES standard conditions (Parts II,111, and IV) that are a part of the permit are not included in this draft
document (cover, map, and Part 1). The conditions are the same as in your current permit except that agency and
division names have been updated. The latest version is available at https://bit.ly/2BZ4xxx and can be viewed
online or downloaded as a PDF file.
With this notification, the Division will solicit public comment on this draft permit by publishing a notice in
newspapers having circulation in the general Mecklenburg 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
919-707-3699, or via e-mail at [e-mail].
Sincerely,
aE _
4vtb*_'�
Kristin Litzenberger
NPDES Compliance and Expedited Permitting
cc: NPDES File
D E QNorth 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
NoarH caaouNa �
D.panm.m of Environmental Quality/� 919.707.9000

Permit NCO071242
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,
Carolina Water Service, Inc. of North Carolina
is hereby authorized to discharge wastewater from a facility located at the
Riverpointe WWTP
15820 Alloway Lane
Charlotte
Mecklenburg County
to receiving waters designated as the Catawba River (Lake Wylie) [stream segment 11-(123.5)] in
subbasin 03-08-34 of the Catawba River Basin in accordance with effluent limits, 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 June 30, 2025.
Signed this day
DRAFT
For S. Daniel Smith, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 7

Permit NCO071242
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.
Carolina Water Service, Inc. of North Carolina is hereby authorized to:
1. Continue to operate an existing 0.05 MGD wastewater treatment facility utilizing two parallel
package wastewater treatment plants (one for sludge wasting/storage) that includes the following
components:
➢ Bar screen
➢ Flow splitter box
➢ Equalization basin
➢ Circular clarifier
➢ Dual (2) peak -flow cloth filters
➢ Backwash collection mud well with two (2) grinder -transfer pumps
➢ Open -channel ultraviolet (LTV) disinfection
➢ Back-up chlorine contact chamber
➢ Backup liquid dechlorination
➢ Aerobic sludge disgester
➢ Weir -based ultrasonic effluent flow meter
➢ Stand-by power generator
➢ Sludge dewatering box
➢ Effluent -collection basin (2,000 gallons) post-aeration/backup chlorine -contact with pumps
These components are located at the Riverpointe WWTP (15820 Alloway Lane, Charlotte) in
Mecklenburg County.
2. After notifying the Division of intent to expand flow, and after receiving the Division's
Authorization to Operate, operate a wastewater treatment system consistent with expanded flow
limit of 0.100 MGD, then
3. Discharge treated wastewater from said treatment works at the location specified on the attached
map into the Catawba River (Lake Wylie) [11-(123.5)] currently classified WS-V and B waters in
subbasin 03-08-34 of the Catawba River Basin.
Page 2 of 7

Permit NCO071242
PART I
Grade 11 Biological Water Pollution Control System [15A NCAC 08G.0302]
A. (1.) EFFLUENT LIMITS AND MONITORING REQUIREMENTS [0.05 MGD]
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning upon the effective date of the permit and lasting until expansion above 0.050 MGD,
the Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored' by the
Permittee as specified below:
PARAMETER
[eDMR Codes]
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location
Flow 50050
0.050 MGD
Continuous
Recording
Influent or
Effluent
BOD, 5-day (20°C) (mg/L) C0310
30.0 mg/L
45.0 mg/L
Weekly
Composite
Effluent
Total Suspended Solids (mg/L) C0530
30.0 mg/L
45.0 mg/L
Weekly
Composite
Effluent
NH3 as N (mg/L) C0610
Monitor & Report
2/Month
Composite
Effluent
Fecal Coliform (geometric mean) 31616
200 / 100 ml
400 / 100 ml
Weekly
Grab
Effluent
pH 00400
>_ 6.0 & <_ 9.0 Standard Units
Weekly
Grab
Effluent
Temperature (°C) 00010
Monitor & Report
Weekly
Grab
Effluent
Total Residual Chlorine2 (pg/L) 50060
28 lug/L
Daily
Grab
Effluent
Dissolved Oxygen (mg/L) 00300
Daily average > 5.0 mg/L
Weekly
Grab
Effluent
Total Nitrogen (mg/L) C0600
Monitor & Report
Quarterly
Composite
Effluent
Total Phosphorus (mg/L) C0665
Monitor & Report
Quarterly
Composite
Effluent
Footnotes:
1. The permittee shall submit discharge monitoring reports electronically using the Division's eDMR system [see
A. (5)].
2. The Division shall consider all effluent TRC values reported below 50 µg/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 µg/L. TRC limit and
monitoring requirements apply only if chlorine is used for disinfection.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS.
Page 3 of 7

Permit NCO071242
A. (2.) EFFLUENT LIMITS AND MONITORING REQUIREMENTS 10.100 MGD]
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning after expansion above 0.050 MGD 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:
PARAMETER
[eDMR Codes]
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location
Flow 50050
0.100 MGD
Continuous
RecordingInfluent
or
Effluent
BOD, 5-day (20°C) (mg/L) C0310
15.0 mg/L
22.5 mg/L
Weekly
Composite
Effluent
Total Suspended Solids (mg/L) C0530
30.0 mg/L
45.0 mg/L
Weekly
Composite
Effluent
NH3 as N (mg/L) C0610
4.0 mg/L
20.0 mg/L
2/Month
Composite
Effluent
Fecal Coliform (geometric mean) 31616
200 / 100 ml
400 / 100 ml
Weekly
Grab
Effluent
pH 00400
>_ 6.0 & <_ 9.0 Standard Units
Weekly
Grab
Effluent
Temperature (°C) 00010
Monitor & Report
Weekly
Grab
Effluent
Total Residual Chlorine2 (pg/L) 50060
28 fag/L
Daily
Grab
Effluent
Dissolved Oxygen (mg/L) 00300
Daily average > 5.0 mg/L
Weekly
Grab
Effluent
Total Nitrogen (mg/L) C0600
Monitor & Report
Monthly
Composite
Effluent
Total Phosphorus (mg/L) C0665
2.0 mg/L (quarterly average)
2/Month
Composite
Effluent
Footnotes:
1. The permittee shall submit discharge monitoring reports electronically using the Division's eDMR system [see
A. (5)].
2. The Division shall consider all effluent TRC values reported below 50 µg/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 µg/L. TRC limit and
monitoring requirements apply only if chlorine is used for disinfection.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS.
A. (3.) NUTRIENT REOPENER
[NCGS 143-215.1(b)]
The Catawba River Basinwide Water Quality Management Plan designated Lake Wylie as Nutrient Sensitive
Waters (NSW) and advanced levels of eutrophication have been observed in Lake Wylie by the States of North
and South Carolina. In recognition of these problems, the Division will reserve the right to reopen the permit to
add additional effluent nutrient limits if deemed appropriate by the Division (or Environmental Management
Commission).
Page 4 of 7

Permit NCO071242
A. (4.) DOMESTIC WASTEWATER REQUIREMENT
[NCGS 143-215.1(b)]
This facility shall receive domestic wastewater only.
A. (5.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
[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 [Supersedes Section D. (2.) and Section E. (5.) (a)l
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. The eDMR system may be accessed at:
https://deq.nc.gov/about/divisions/water-resources/edmr.
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 following address:
NC DEQ / Division of Water Resources / Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
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 permit 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
Clean Water Act (CWA) Section 316(b) Annual Reports.
Page 5 of 7

Permit NC0071242
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(1)(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.federalre ig ster.gov/documents/2015/10/22/2015-24954/national-pollutant-discharge-elimination-
system-npdes-electronic-reporting
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:
hILtp://deq.nc.gov/about/divisions/water-resources/edmr
4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. (11.) Ml
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II, Section B.
(I I.)(a) or by a duly authorized representative of that person as described in Part II, Section B. (I I.)(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 visit the following web page:
http://deq.nc.,gov/about/divisions/water-resources/edmr
Page 6 of 7

Permit NC0071242
Certification. Any person submitting an electronic DMR using the state's eDMR system shall make the following
certification [40 CFR 122.221. 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.)]
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 7 of 7

p
FE
Ew
Charlotte Hwy/
York Road
(NC Hwy 49)
SC /NC
State Line
600
.. 4.2,
j
f
r
Woolwine Road
Xr-
Carolina Water Service, Inc. of NC
Fiverpointe Subdivision WWTP
Receiving Stream: Catawba River (Lake Wylie)
Stream Class: WS-V; B Stream Segment: 11-(123.5)a
Latitude: 350 06' 04" Longitude: 810 02'07"
HUC: 03050101 Sub -Basin: 3-08-34
Drainage Basin: Catawba River Basin
01.
Outfall 001
(Flows southwest)
sm
NPDES Permit NC0071242
No Mecklenburg County
0� �j