NC0035041_Renewal (Application)_20230622

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
Travis Dupree, PE
Carolina Water Service Inc of North Carolina
130 S Main St
Ste 800
Subject: Permit Renewal
Application No. NCO035041
Hemby Acres WWTP
Union County
Dear Permiee:
NORTH CAROLINA
Environmental Quality
June 22, 2023
The Water Quality Permitting Section acknowledges the May 8, 2023 receipt of your permit renewal application and
supporting documentation. Your application will be assigned to a permit writer within the Section's NPDES WW permitting
branch. Per G.S. 150E-3 your current permit does not expire until permit decision on the application is made.
Continuation of the current permit is contingent on timely and sufficient application for renewal of the current permit. The
permit writer will contact you if additional information is required to complete your permit renewal. Please respond in a
timely manner to requests for additional information necessary to allow a complete review of the application and renewal
of the permit.
Information regarding the status of your renewal application can be found online using the Department of Environmental
Quality's Environmental Application Tracker at:
https•//deq nc.gov/permits-regulations/permit-guidance/environmental-application-tracker
If you have any additional questions about the permit, please contact the primary reviewer of the application using the
links available within the Application Tracker.
ec: WQPS Laserfiche File w/application
Sincerely,
Wren Thedford
Administrative Assistant
Water Quality Permitting Section
North Carolina Department of Environmental Quality I Division of Water Resources
Mooresville Regional Office 1 610 East Center Avenue. Suite 301 1 Mooresville, North Carolina 28115
704.663.1699

FW% Carolina Water Service
V4111111M of North Carolina
May 3, 2023
Wren Thedford
Division of Water Resources
Water Quality Permitting Section — NPDES
Archdale Building — 91h Floor
512 North Salisbury Street
Raleigh, NC 27604
Subject: NPDES Permit Renewal Application
Hemby Acres WWTP
NPDES NCO035041
Union County
Wren Thedford,
LaserFiche
RECEIVED
MAY 0 5 2023
KDEWUVWDES
Please find the enclosed application as our official request to renew the NPDES permit for the facility
referenced above.
If you should have any questions or need any additional information, please do not hesitate to contact
Gary Peacock, Larry Henry or myself.
Sincerely,
Brent Milliron
Regulatory Compliance Manager
cc: Gary Peacock — Director of State Operations, CWSNC
Larry Henry — Area Manager, CWSNC
• 5821 Fairview Rd., Suite 401 • Charlotte, North Carolina 28209 • 800-525-7990

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO035041
Hemby Acres WWTP
Modified March 2021
Form
NC Department of Environmental Quality - Application for NPDES Permit to Discharge Wastewater
MINOR SEWAGE FACILITIES (Before completing this form, please read the instructions. Failure to follow
NPDES
the instructions my result in denial of the application.)
SECTION•N
INFORMATION FOR
Facility name
1.1
Hemby Acres WWTP
Mailing address (street or P.O. box)
PO Box 240908
City or town
State
ZIP code
0
Charlotte
INC
28224
€
Contact name (first and last)
Title
Phone number
Email address
0
Gary Peacock
Director of Operations
[phone]
Gary. Peacock@ca roli nawaters
c
Location address (street, route number, or other specific identifier) ❑ Same as mailing address
Ua
7803 Idlewild Road
City or town
State
ZIP code
Indian Trail
NC
28079
1.2
Is this application for a facility that has yet to commence discharge?
❑ Yes 4 See instructions on data submission ❑✓ No
requirements for new dischargers.
1.3
Is applicant different from entity listed under Item 1.1 above?
❑ Yes No 4 SKIP to Item 1.4.
Applicant name
=
Applicant address (street or P.O. box)
0
ra
State
ZIP
0
City or town
code
15
Contact name (first and last)
Title
Phone number
Email address
a
a
a
1.4
Is the applicant the facility's owner, operator, or both? (Check only one response.)
❑ Owner ❑ Operator ✓❑ Both
1.5
To which entity should the NPDES permitting authority send correspondence? (Check only one response.)
❑ Facility ✓❑ Applicant ❑ Facility and applicant
(they are one and the same)
1.6
Indicate below any existing environmental permits. (Check all that apply and print or type the corresponding permit
w
number for each.
Existing Envlronn•ntal Parmib
a
❑ NPDES (discharges to surface
❑ RCRA (hazardous waste)
❑ UIC (underground injection
w
=
water)
control)
E
NCO035041
2
❑ PSD (air emissions)
❑ Nonattainment program (CAA)
❑ NESHAPs (CAA)
c
W
rn
y
❑ Dredge or fill (CWA Section
❑✓ Other (specify)
❑ Ocean dumping (MPRSA)
w
404)
Collection: WQCS00233
Page 1

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO035041
Hemby Acres W WTP
Modified March 2021
1.7
Provide the collections stem information
requested below for the treatment works.
Municipality
Population
Collection System Type
Status
Served
Served
indicatepercentage)Ownership
1817 Population
100 % separate sanitary sewer
El Own E1 Maintain
�
Z
727 Connections
% combined storm and sanitary sewer
❑ Own ❑ Maintain
a,
❑ Unknown
❑ Own ❑ Maintain
c
% separate sanitary sewer
❑ Own ❑ Maintain
% combined storm and sanitary sewer
❑ Own ❑ Maintain
co
❑ Unknown
❑ Own ElMaintain
n
C
a
% separate sanitary sewer
❑ Own ❑ Maintain
% combined storm and sanitary sewer
❑ Own ❑ Maintain
1°
❑ Unknown
❑ Own ❑ Maintain
m%
separate sanitary sewer ❑ Own ❑ Maintain
N%
combined storm and sanitary sewer ❑ Own El Maintain
c
ElUnknown ❑ Own ❑ Maintain
m
Total 1817
Population
Served
Separate Sanitary Sewer System Combined Storrs and
Sanitary Sewer
Total percentage of each type of
sewer line in miles
100
2'
1.8
Is the treatment works located in Indian Country?
c
'
0
t�
El Yes 0 No
1.9
-
Does the facility discharge to a receiving water that flows through Indian Country?
c
❑ Yes El No
1.10
Provide design and actual flow rates in the designated spaces.
Design Flow Rate
0.3 mgd
Annual Average Flow Rates Actual
Two Years Ago
Last Year
This Year
c o
0.107 mgd
0.104 mgd 0.032 mgd
m"
Maximum Daily Flow Rates Actual
Two Years Ago
Last Year
This Year
0.289 mgd
0.248 mgd
0.405 mgd
1.11
Provide the total number of effluent discharge points to waters of the State of North Carolina by type.
Total Number of Effluent Discharge Points by Type
5
o
Combined Sewer
Constructed
a.
Treated Effluent
Untreated Effluent Overflows
Bypasses Emergency
Overflows
c
1
Page 2

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO035041
Hemby Acres WWTP
Modified March 2021
Outfalis Other Than to Waters of the State of North Cardin
1.12
Does the POTW discharge wastewater to basins, ponds, or other surface impoundments that do not have outlets
for discharge to waters of the State of North Carolina?
❑ Yes ❑r No 4 SKIP to Item 1.14.
1.13
Provide the location of each surface impoundment and associated discharge information in the table below.
Surface Im oundment Location and Dischar a Data
Average Daily Volume
Continuous or Intermittent
Location
Discharged to Surface
(check one)
Impoundment
❑ Continuous
gpd
❑ Intermittent
❑ Continuous
gpd
❑ Intermittent
ElContinuous
gpd
-a
❑ Intermittent
t
1.14
Is wastewater applied to land?
❑ Yes ❑✓ No 4 SKIP to Item 1.16.
0
1.15
Provide the land application site and discharge data requested below.
C
Land Application Site and Discharge Data
o
Continuous or
8
Location
Size
Average Daily Volume
Intermittent
Applied
check one
acres
gpd
❑ Continuous
o
❑ Intermittent
ElContinuous
r
acres
gpd
❑ Intermittent
0
acres
d
❑ Continuous
9p
❑ Intermittent
1.16
Is effluent transported to another facility for treatment prior to discharge?
o
❑ Yes © No 4 SKIP to Item 1.21.
1.17
Describe the means by which the effluent is transported (e.g., tank truck, pipe).
1.18
Is the effluent transported by a party other than the applicant?
❑ Yes ❑ No 4 SKIP to Item 1.20.
1.19
Provide information on the transporter below.
Transpo,rter Data
Entity name
Mailing address (street or P.O. box)
City or town
State
ZIP code
Contact name (first and last)
Title
Phone number
Email address
Page 3

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO035041
Hemby Acres WWTP
Modified March 2021
1.20
In the table below, indicate the name, address, contact information, NPDES number, and average daily flow rate of the
receiving facility.
RecelvAng IF cillity Data
Facility name
Mailing address (street or P.O. box)
d
City or town
State
ZIP code
0
U
Contact name (first and last)
Title
0
a
Phone number
Email address
0
NPDES number of receiving facility (if any) ❑ None
Average daily flow rate mgd
N
0
1.21
Is the wastewater disposed of in a manner other than those already mentioned in Items 1.14 through 1.21 that do
0
not have outlets to waters of the State of North Carolina (e.g., underground percolation, underground injection)?
rn
s
❑ Yes ❑ No + SKIP to Item 1.23.
0
1.22
Provide information in the table below on these other disposal methods.
Information on Other Dis osal Methods
o
Disposal
Location of Size of
Average
Continuous or Intermittent
Method
Disposal Site Disposal Site
�Daily
schargeDescri
(check one)
tion
ume
acres
gPd
❑ Continuous
❑ Intermittent
ElContinuous
acres
9Pd
❑ Intermittent
acres
gP d
ElContinuous
❑ Intermittent
1.23
Do you intend to request or renew one or more of the variances authorized at 40 CFR 122.21(n)? (Check all that apply.
Consult with your NPDES permitting authority to determine what information needs to be submitted and when.)
Discharges into marine waters (CWA Water quality related effluent limitation (CWA Section
❑ ❑
Section 301(h)) 302(b)(2))
�$
❑✓ Not applicable
1.24
Are any operational or maintenance aspects (related to wastewater treatment and effluent quality) of the treatment works
the responsibility of a contractor?
❑ Yes ❑ No +SKIP to Section 2.
1.25
Provide location and contact information for each contractor in addition to a description of the contractor's operational
and maintenance responsibilities.
Contractor Information
Contractor 1
Contractor 2 Contractor 3
o
Contractor name
(company name
Mailing address
street or P.O. box
o
City, state, and ZIP
j
code
o
Contact name (first and
c.)
last
Phone number
Email address
Operational and
maintenance
responsibilities of
contractor
Page 4

NPDES Permit Number Facility Name Modified Application Form 2A
NCO035041 Hemby Acres WWTP Modified March 2021
SECTIONDD• •• • i
o Outfalls to Waters of the State of North Carding
2.1
Does the treatment works have a design flow greater than or equal to 0.1 mgd?
0
0 Yes ❑ No 4 SKIP to Section 3.
`0
2.2
Provide the treatment works' current average daily volume of inflow
Illy Volume of Inflow and hdNradon
and infiltration.
0.100 gpd
w
Indicate the steps the facility is taking to minimize inflow and infiltration.
c
Manholes and sewer mains have been replaced on an ongoing basis as problems are identified. These areas are
`O
identified through video and smoke testing.
0
0
c
Z
2.3
Have you attached a topographic map to this application that contains all the required information? (See instructions for
CL
specific requirements.)
o
0
❑ Yes ❑ No
2.4
Have you attached a process flow diagram or schematic to this application that contains all the required information?
1!
c
_ w
(See instructions for specific requirements.)
" o
❑ Yes ❑ No
2.5
Are improvements to the facility scheduled?
0 Yes ❑ No 4 SKIP to Section 3.
Briefly list and describe the scheduled improvements.
0
1 Digesters are set to be rehabbed and/or replaced.
c
d
E
m
a
2. The 2 aeration ponds are to be pumped down, cleaned and relined.
E
0 0
H
d
3.
d
4.
N
•O
m
2.6
Provide scheduled or actual dates of completion for improvements.
Scheduled or Actual Dates of Com letion for Improvements
E
d
Scheduled
Affected
Begin
End
Begin
Attainment of
>
e
Improvement
Outfalls
Construction
Construction
Discharge
Operational
CL E
—
(from above)
(list )
number)
(MM/DD/YYYY)
(MM/DD/YYY`1)
(MM/DD/YYYY)
Level
MM/DD
1
001
„
d
t
y
2.
3.
4.
2.7
Have appropriate permits/clearances concerning other federal/state requirements been obtained? Briefly explain your
response.
❑ Yes ❑ No ❑✓ None required or applicable
Explanation:
Page 5

NPDES Permit Number Facility Name Modified Application Form 2A
NCO035041 Hemby Acres WWTP Modified March 2021
SECTION•'
• ON 1
I
for each outfall. (Attach additional sheets if you have more than three outfalls.)
3.1
Provide the following information
Outfall Number 001
Outfall Number
Outfall Number
State
NC
y
is
County
Union
O
w
City Or town
Indian Trail
0
s .Q
Distance from shore
20 ft.
d
Depth below surface
0 ft.
0
Average daily flow rate
0.032 mgd
mgd
mgd
Latitude
35° 05 14"
Longitude
80 39 02"
3.2
Do any of the outfalls described under Item 3.1 have seasonal or periodic discharges?
o
❑ Yes 0 No 4 SKIP to Item 3.4.
d
3.3
If so, provide the following information for each applicable outfall.
s
Outfall Number Outfall Number
Outfall Number
0
Number of times per year
v
2
discharge occurs
a
Average duration of each
o
discharge (specify units
o
Average flow of each
mgd
mgd
mgd
(n
discharge
M
rCD
n
Months in which discharge
occurs
3.4
Are any of the outfalls listed under Item 3.1 equipped with a diffuser?
❑✓ Yes ❑ No 4 SKIP to Item 3.6.
3.5
Briefly describe the diffuser type
at each applicable outfall.
Outfall Number 001
Outfall Number
Outfall Number
m
Step aeration is located right
before outfall after contact
G
chamber
c
3.6
Does the treatment works discharge or plan to discharge wastewater to waters of the State of North Carolina from
'
E
one or more discharge points?
3
0 Yes ❑ No +SKIP to Section 6.
Page 6

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO035041
Hemby Acres WWTP
Modified March 2021
3.7
Provide the receiving water and related information if known for each outfall.
Outfall Number 001
Outfall Number
Outfall Number
Receiving water name
North Fork Crooked Creek
Name of watershed, river,
Lower Rocky River
`o
or stream system
U.S. Soil Conservation
H
Service 14-digit watershed
030401050702
o
code
Name of state
management/river basin
Yadkin -Pee Dee River Basin
w
�
3
U.S. Geological Survey
4)
8-digit hydrologic
03040105
cataloging unit code
Critical low flow (acute)
N/A cfs
cfs
cfs
Critical low flow (chronic)
N/A cfs
cfs
cfs
Total hardness at critical
mg/L of
N/A
mg/L of
mg/L of
low flow
CaCO3
CaCO3
CaCO3
3.8
Provide the following information
describing the treatment pr vided for discharges from each outfall.
Outfall Number oo1
Outfall Number
Outfall Number
Highest Level of
0 Primary
❑ Primary
❑ Primary
Treatment (check all that
❑ Equivalent to
❑ Equivalent to
❑ Equivalent to
apply per outfall)
secondary
secondary
secondary
E1 Secondary
❑ Secondary
❑ Secondary
121 Advanced
❑ Advanced
❑ Advanced
❑ Other (specify)
❑ Other (specify)
❑ Other (specify)
c
0
Design Removal Rates by
Not Available
Outfall
m
BOD5 or CBOD5
%
%
%
c
m
TSS
%
%
%
❑ Not applicable
❑ Not applicable
❑ Not applicable
Phosphorus
/o o
0 /o
%
/o
❑ Not applicable
❑ Not applicable
❑ Not applicable
Nitrogen
/o o
0 /o
/o
%
Other (specify)
❑ Not applicable
❑ Not applicable
❑ Not applicable
Page 7

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO035041
Hemby Acres WWTP
Modified March 2021
3.9
Describe the type of disinfection used for the effluent from each outfall in the table below. If disinfection varies by
season, describe below.
d
_
c
o
-
Outfall Number 001
Outfall Number
Outfall Number
o
-
g
Disinfection type
U
N
z
All
Seasons used
d
E
❑ Not applicable
Dechlorination used?
❑ Not applicable
❑ Not applicable
0 Yes
❑ Yes
❑ Yes
❑ No
❑ No
❑ No
3.10
Have you completed monitoring for all Table A parameters and attached the results to the application package?
El Yes ❑ No
3.11
Have you conducted any WET tests during the 4.5 years prior to the date of the application on any of the facility's
discharges or on any receiving water near the discharge points?
❑ Yes ❑✓ No 4 SKIP to Item 3.13.
3.12
Indicate the number of acute and chronic WET tests conducted since the last permit reissuance of the facility's
discharges by outfall number or of the receiving water near the discharge points.
Outfall Number
Outfall Number
Outfall Number
Acute
Chronic
Acute
Chronic
Acute
Chronic
Number of tests of discharge
rn
=
water
d
Number of tests of receiving
~
water
d
W
3.14
Does the POTW use chlorine for disinfection, use chlorine elsewhere in the treatment process, or otherwise have
reasonable potential to discharge chlorine in its effluent?
✓❑ Yes 4 Complete Table B, including chlorine. ❑ No -* Complete Table B, omitting chlorine.
3.15
Have you completed monitoring for all applicable Table B pollutants and attached the results to this application
package?
❑r Yes ❑ No
Have you completed monitoring for all applicable Table D pollutants required by your NPDES permitting authority and
3.18
attached the results to this application package?
❑ Yes ID No additional sampling required by NPDES
permitting authority.
Page 8

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO035041
Hemby Acres WWTP
Modified March 2021
3.19
Has the POTW conducted either (1) minimum of four quarterly WET tests for one year preceding this permit application
or (2) at least four annual WET tests in the past 4.5 years?
❑ Yes ❑ No + Complete tests and Table E and SKIP to
Item 3.26.
3.20
Have you previously submitted the results of the above tests to your NPDES permitting authority?
❑ Yes ❑ No + Provide results in Table E and SKIP to
Item 3.26.
3.21
Indicate the dates the data were submitted to our NPDES permitting authority and provide a summary of the results.
Date(s) Submitted
Summary of Results
(MMIDDATT
a
c
Y
C
O
U cz
3.22
Regardless of how you provided your WET testing data to the NPDES permitting authority, did any of the tests result in
o
toxicity?
❑ Yes ❑ No SKIP to Item 3.26.
3.23
Describe the cause(s) of the toxicity:
d
w
3.24
Has the treatment works conducted a toxicity reduction evaluation?
❑ Yes ❑ No + SKIP to Item 3.26.
3.25
Provide details of any toxicity reduction evaluations conducted.
3.26
Have you completed Table E for all applicable outfalls and attached the results to the application package?
❑ Yes E Not applicable because previously submitted
information to the NPDES permitting authority.
Page 9

NPDES Permit Number Facility Name Modified Application Form 2A
FNCO035041 Hemby Acres WWTP Modified March 2021
SECTION•
i
In Column 1 below, mark the sections of Form 2A that you have completed and are submitting with your application. For
6.1
each section, specify in Column 2 any attachments that you are enclosing to alert the permitting authority. Note that not
all applicants are required to provide attachments.
Column 1
Column 2
❑� Section 1: Basic Application
❑ w/ variance request(s) ❑ wl additional attachments
Information for All Applicants
❑ Section 2: Additional
r❑ w/ topographic map 21 w/ process flow diagram
Information
❑ w/ additional attachments
Q wl Table A ❑ wl Table D
❑ Section 3: Information on
✓❑ w/ Table B ❑ wl additional attachments
Effluent Discharges
E
❑ w/ Table C
d
U)
Section 4: Not Applicable
a
0
!�
Section 5: Not Applicable
d
U
o
Section 6: Checklist and
El w/ attachments
Certification Statement
N_
Y
6.2
Certification Statement
U
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 fine
and imprisonment for knowing violations.
Name (print or type first and last name)
Official title
Gary Mack Peacock
Director of Operations
Signature
Date signed
-�--�_ �
Ga �C_=o�dINC �E��a
o waen+n
05-02-2023
Page 10

NPDES Permit Number Facility Name Outfall Number Modified Application Form ZA
NC0035041 Hemby Acres WWTP 001 Modified March 2021
I
Maximum Daily Discharge
Average Daily Discharge
Analytical
ML or MDL
Pollutant
Value Units
NumberMethod'
Value Units___
Include units ( )
Samples
Biochemical oxygen demand
❑ ML
Ri BOD5 or ❑ CBOD5
11
mg/I
1.79
mg/I
❑ MDL
(report one
100
ML
E
❑ MDL
Fecal coliform
cfu
2.38
cfu
Design flow rate
0.3
mgd
0.104
mgd
pH (minimum)
6.56
su
pH (maximum)
7.57
su
Temperature (winter)
20.9
C
13.16
C
Temperature (summer)
26.9
C
22.98
C
❑ ML❑ MDL
Total suspended solids JSS)
17
mg/l
1.66
mg/l
r Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods) approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I, subchapter N or 0. See instructions and 40 CFR 122.21(e)(3).
Page 11

Identification Number NPDES Permit Number Facility Name Outfall Number Modified Application Form 2A
NC0035O41 I Hemby Acres WWTP 001 Modified March 2021
11 IX II
Maximum Daily Discharge
Average Daily Discharge
Po11YhM
Number of
Analytical
MIL or MDL
Value Units
I Value
Units
Method'
include units
( )
0.18 mg/l
38 ug/I
0.025
8.66
SamplesEl
mg/I
ug/I
_
mmonia (aS N)
[Di
ML
❑ MDL
hlorine
❑ ML
otal residual, TRC z
18.1 mg/I
9.36
mg/I
❑ MDL
ssolved oxygen
❑ML
❑ MDL
itrate/nitrite
32
mg/I
29
mg/I
❑ ML
❑ MDL
Kjeldahl nitrogen
1.2
mg/I
0.6
mg/I
❑ MIL
❑ MDL
Oil and grease
N/A
❑ MIL
❑ MDL
Phosphorus
5.7
mg/I
4.75
mg/I
❑ ML
❑ MDL
Total dissolved solids
N/A
❑ ML
❑ MDL
' Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods) approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I, subchapter N or 0. See instructions and 40 CFR 122.21(e)(3).
2 Facilities that do not use chlorine for disinfection, do not use chlorine elsewhere in the treatment process, and have no reasonable potential to discharge chlorine in their effluent are not
required to report data for chlorine.
EPA Form 3510-2A (Revised 3-19) Page 12

Caustic Soda Storage
F
Lime Storage
M
Sodium Hypochlorite and
Sodium Bisulfate Storage
r
Polymer Storage r
h
Effluent r
Effluent Discharge
e
r
r
•
r
�Y
s-
-A
North Fork Crooked Creek
■
DISCLAIMER: This map is not a survery.
CWSNC makes no guarantee, implicit or N
�►"M H e m by Acres implied, about the accuracy of this data.
Carolina Wastewater Treatment Plant ° '° Meters '° 50 Map Produced By: CSC A
Water Service Date: 4/14/2023
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Hemby Acres WWTP Flow
Process Map
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