NC0075205_Renewal (Application)_20241007

ROY COOPER
Governor
MARY PENNY KELLEY
$MVP1ory
RICHARD E. ROGERS. JR
Director
Wesley Bishop
Aqua North Carolina Inc
202 Mackenan Ct
Cary, NC 27511
Subject: Permit Renewal
Application No. NCO075205
Alexander Island WWTP
Iredell County
Dear Applicant:
NORTH CAROLINA
Environmental Quality
October 07, 2024
The Water Quality Permitting Section acknowledges the October 7, 2024 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. 150B-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://www.deq.nc.gov/permits-rules/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, %
Cynthia Demery
Administrative Assistant
Water Quality Permitting Section
North 0Depa"=M of Emronmental Qualky I Mvtslon d Water Resources
MaomsWlle Reglonal Ofllce 1610 East Center Avenue, 5u1h M1 I M.,Aik, North Camtlna 26115
M4b63.1699

AQUA.
6 Essential
October 2, 2024
Division of Water Resources
Water Quality Permitting Section - NPDES
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Re: Application for Permit Renewal
Aqua North Carolina, Inc.
Alexander Island WWTP
NPDES No. NCO075205
Iredell County
To Whom It May Concern:
RECEIVED
OCT 07 2024
NCDEQ/DWR/NPDES
Enclosed are three (3) copies of the completed application Form 2A and necessary
attachments for your office to renew the subject permit.
Should you need any additional information or assistance, please feel free to contact me via
phone at [phone] or by email at [e-mail].
Sincerely,
�vv �
Brent Milliron
Environmental Compliance Director
Aqua North Carolina, Inc.
Enc: NPDES Application, Form 2A w/ attachments
Alexander Island NCO075205 NPDES Permit
Cc: Shannon Becker, President, Aqua North Carolina
Lori Lester, Environmental Compliance Specialist 1
202 MacKenan Court, Cary, NC, 27511 • 919.467.8712 0 AquaAmerica.com

NPDES Permit Number
Facility Name
Modified Application Pon 2A
NCO075205
Alexander Island 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 may result in denial of the application.)
SECTION
1. BASIC
APPLICATION INFORMATION FOR ALL APPLICANTS (40 CFR
Facility name
1.1
Alexander Island Subdivision WWTP
Mailing address (street or P.O. box) 0 C T 07 2024
108 Sailview Drive
City or town
State
ZIP code
o
Mooresville
NcNCDEQ D
NPDES
E
Contact name (first and last)
Title
Phone number
Email address
o
Brent Milliron
Envir. Compliance Director
[phone]
[e-mail]
c
Location address (street, route number, or other specific identifier) ✓❑ Same as mailing address
Z
m
LL
City or town
State
ZIP code
1.2
Is this application for a facility that has yet to commence discharge?
❑ Yes 4 See instructions on data submission ❑r 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
Aqua North Carolina
Applicant address (street or P.O. box)
202 MacKenan Court
E
City or town
State
ZIP code
12
Cary
NC
27511
Contact name (first and last)
Title
Phone number
Email address
n
Brent Milliron
Envir. Compliance Director
[phone]
[e-mail]
1.4
Is the applicant the facility's owner, operator, or both? (Check only one response.)
❑ Owner ❑ Operator ❑r 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
number for each.
€
Existing Environmental Permits
LL
r❑ NPDES (discharges to surface
❑ RCRA (hazardous waste)
UIC (underground injection
�
water)
control )
E
NCO075205
PSD (air emissions)
❑ Nonattainment program (CAA)
❑ NESHAPs (CAA)
c
W
rn
N
❑ Ocean dumping (MPRSA)
❑ Dredge or fill (CWA Section
❑ Other (specify)
ux
404)
Page 1

NPDES Permit Numher
Facility Name
Modified Application Fonn 2A
NCO075205
Alexander Island W WTP
Modified March 2021
1.7
Provide the collections stem information requested below for the treatment works.
Municipality
Population
Collection System Type
Ownership Status
Served
Served
indicate percentage)
100 % separate sanitary sewer
0 Own ❑ Maintain
9„
Mooresville, NC
82
% combined storm and sanitary sewer
❑ Own ❑ Maintain
t
❑ unknown
❑ Own ❑ Maintain
% separate sanitary sewer
❑ Own ❑ Maintain
_
% combined storm and sanitary sewer
❑ own ❑ Maintain
❑ Unknown
❑ own ❑ Maintain
a%
separate sanitary sewer
❑ Own ❑ Maintain
-o
% combined storm and sanitary sewer
❑ Own ❑ Maintain
❑ Unknown
❑ Own ❑ Maintain
d
% separate sanitary sewer
❑ Own ❑ Maintain
% combined storm and sanitary sewer
❑ Own ❑ Maintain
❑ Unknown
❑ Own ❑ Maintain
Total 82
Population
< i
Served
Combined Storm and
Separate Sanitary Sewer System
Sanitary Sewer
Total percentage of each type of
100 %
%
sewer line in miles
1.8
Is the treatment works located in Indian Country?
c'o
❑ Yes ❑� No
A1.9
Does the facility discharge to a receiving water that flows through Indian Country?
❑ Yes No
1.10
Provide design and actual flow rates in the designated spaces.
Desi n Flow Rate
0.015 d
Annual Average Flow Rates Actual
a 2
Two Years Ago
Last Year
This Year
of
c c
0.0033 mgd
0.0042 mgd
0.0035 mgd
"
Maximum Daily Flow Rates Actual
d
�
Two Years Ago
Last Year
This Year
0.009 mgd
0.025 mgd
0.025 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 Discha a Points b T e
d
Constructed
d a
P
Treated Effluent
Untreated Effluent
Combined Sewer
Overflows
Bypasses
Emergency
= a
Overflows
U
N
�
1
Page 2

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO075205
Alexander Island WWTP
Modified March 2021
Outfalls Other Than to Waters of the State of North Carolina
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 ❑✓ No 4 SKIP to Item 1.14.
1.13
Provide the location of each surface impoundment and associated dischar a information in the table below.
Surface III m oundmerd Location and Discharge Data
Average Daily Volume
Continuous or Intermittent
Location
Discharged to Surface
(check one)
Impoundment
❑ Continuous
gpd
❑ Intermittent
❑ Continuous
gpd
❑ Intermittent
❑ Continuous
gpd
❑ Intermittent
t
1.14
Is wastewater applied to land?
M
❑ Yes ❑✓ No 4 SKIP to Item 1.16.
N
1.15
Provide the land application site and discharge data requested below.
N
Land Application Site and Discharge Data
o
Average Deity Volume
Continuous or
0
Location
Size
Applied
Intermittent
o
check one
L
acres
gpd
❑ Continuous
o
❑ Intermittent
❑ Continuous
s
o
acres
gpd
❑ Intermittent
�
acres
❑ Continuous
g�
❑ 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.
Trans orter 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
NCO075205
Alexander Island 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.
Receivin Faeil Data
Facility name
Mailing address (street or P.O. box)
o
m
`E
c
City or town
State
ZIP code
0
U
9
Contact name (first and last)
Title
0
d
Phone number
Email address
o
NPDES number of receiving facility (if any) ❑ None
Average daily flow rate mgd
a
1.21
Is the wastewater disposed of in a manner other than those already mentioned in Items 1.14 through 1.21 that do
not have outlets to waters of the State of North Carolina (e.g., underground percolation, underground injection)?
m
A
❑ Yes ❑✓ No 4 SKIP to Item 1.23.
L
c1.22
Provide information in the table below on these other disposal methods.
Information on Other Dis sal Methods
o
Disposal
Location of
Size of
Annual Average
Continuous or Intermittent
`
Method
Disposal Site
Disposal Site
Daily Discharge
Volume
(check one)
a
Description
A
acres
9Pd
❑ Continuous
❑ Intermittent
0
acres
gPd
❑ Continuous
❑ Intermittent
acres
9P d
❑ Continuous
❑ 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.
f�nnal ilt w;th Nl3nFR pamitting ai ithodly in finterml what information neefin to hA submitted and when.)
Vow
Discharges into marine waters (CWA El 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
g
Contractor name
$
(company name
Mailing address
street or P.O. box
e
City, state, and ZIP
code
Contact name (first and
u
last
Phone number
Email address
Operational and
maintenance
responsibilities of
contractor
Page 4

NPOES Permit Number Facility Name Modified Application Form 2A
NCO075205 Alexander Island WWTP Modified March 2021
SECTION 2. ADDITIONAL INFORMATION (40 CIFR 122.210)(1) and (2))
c Outfalls to waters of the Slate of North Carolina
2.1
Does the treatment works have a design flow greater than or equal to 0.1 mgd?
❑ Yes ❑✓ No 4 SKIP to Section 3.
0
=
2.2
Provide the treatment works' current average daily volume of inflow
Average Daily Volume of Inflow and Infiltration
�
and infiltration.
gpd
c
Indicate the steps the facility is taking to minimize inflow and infiltration.
v
c
m
3
0
c
c
r
2.3
Have you attached a topographic map to this application that contains all the required information? (See instructions for
W
specific requirements.)
o �
$
El Yes E] No
2A
Have you attached a process flow diagram or schematic to this application that contains all the required information?
n
(See instructions for speck requirements.)
c
❑ Yes ❑ No
2.5
Are improvements to the facility scheduled?
❑ Yes ❑ No 4 SKIP to Section 3.
Briefly list and describe the scheduled improvements.
=
0
1.
c
m
E
a
2.
E
0
d
3.
a
m
L
U
N
Y.
2.6
Provide scheduled or actual dates of completion for improvements.
Scheduled or Actual Dates of Com letion for Improvements
E
>
Scheduled
Affected
Orrifalls
Begin
End
Begin
Attainment of
Operational
c
Improvement
(list outfall
Construction
Construction
Disc harge
Level
E
_
(from above)
number
(MMIDDIYYYY)
(MMIDDIYYYY)
(MMIDDIYYYY)
MMIDD
a
1.
m
L
2.
y
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 raGuq name maauieu �WP��wuvn 1.,1„
Alexander Island WWiP Modified March 2021
NC0075205
SECTION
3. INFORMATION
ON EFFLUENT DISCHARGES (40 CFR 122.210)(3) to (5))
Provide the following information for each outfall. (Attach additional sheets if you have more than three outfalls.)
3.1
Outfall Number 001
Outfall Number _
Outfall Number
State
NC
•—r
County
Iredell
m
0
`o
City or town
Mooresville
Distance from shore
1056 h•
K
ft
u
Depth below surface
zo ft.
Average daily flow rate
0.004 mgd
mgd
mgd
Latitude
35° 42' 21" N
Longitude
a0° 33' 54" w
"
3.2
Do any of the outfalls described under Item 3.1 have seasonal or periodic discharges?
c
❑ Yes ✓❑ No 4 SKIP to Item 3.4.
A
3.3
If so, provide the following information for each applicable outfall.
a
Outfall Number _
Outfall Number _
Outfall Number
0
Number of times per year
Bdischarge
occurs
d
Average duration of each
Average flow of each
mgd
mgd
mgd
$
discharge
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 a at each applicable outrall.
d
Outfall Number_
Outfall Number_
Outfall Number
d
0
Does the treatment works discharge or plan to discharge wastewater to waters of the State of North Carolina from
vi
C =j
3.6
one or more discharge paints?
m .
3 S
Yes ❑ No +SKIP to Section 6.
Page 6

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO075205
Alexander Island 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
Lake Norman
Name of watershed, river,
Lake Norman (Catawba River)
o
or stream system
a
U.S. Soil Conservation
Service 14-digit watershed
o
code
Name of stale
3
management/river basin
Catawba
0
S
U.S Geological Survey
Ei
8-digit hydrologic
cataloging unit code
Critical low flow (acute)
cis
cfs
cfs
Critical low flow (chronic)
cis
cis
cis
Total hardness at critical
mglL of
mglL of
mglL of
low flow
C8CO3
CaCO3
CaCO3
3.8
Provide the following information describing the treatment provided for discharges from each outfall.
Outfall Number 001
Outfall Number
Oulfall Number
Highest Level of
❑ Primary
❑ Primary
❑ Primary
Treatment (check all that
❑ Equivalent to
❑ Equivalent to
❑ Equivalent to
apply per outfall)
secondary
secondary
secondary
O Secondary
❑ Secondary
❑ Secondary
❑ Advanced
❑ Advanced
❑ Advanced
❑ Other (specify)
❑ Other (specify)
❑ Other (specify)
c
aDesign
Removal Rates by
`u
Outfall
N
a
BODs or CBODs
85 %
%
%
c
d
e
m
TSS
85 %
%
%
0 Not applicable
❑ Not applicable
❑ Not applicable
Phosphorus
%
%
%
0 Not applicable
❑ Not applicable
❑ Not applicable
Nitrogen
%
%
%
Other (specify)
0 Not applicable
❑ Not applicable
❑ Not applicable
%
%
%
Page 7

NPDES Permit Number
Facility Nam
Modified Application Form 2A
NCO075205
Alexander Island 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.
0
c
a
c
0
e
Outfall Number 001
Outfall Number
Outtall Number
o
Disinfection type
Tablet Chlorination w/contact
tank
Seasons used
All
Eo
FDechlorination
used?
❑ Not applicable
❑ Not applicable
❑ Not applicable
❑✓ 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?
r❑ 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 outfa_II number or of the receiving water near the discharge points.
OutfallNumber_ I OutfallNumber OutfallNumber_
Acute Chronic Acute Chronic Acute Chronic
Number of tests of discharge
c
watpr
FNumber
of tests of receiving
water
m
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 4 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?
0 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?
0 No additional sampling required by NPDES
❑ Yes ermittin authori .
Page 8

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO075205
Alexander Island W WTP
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 0 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?
4 Provide results in Table E and SKIP to
❑ Yes El
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
MMIDD
v
m
S
c
c
0
�
3.22
Regardless of how you provided our WET testing data to the NPDES permitting authority, did an of the tests result in
9 Y P Y 9 P 9 b. Y
o
toxicity?
c
❑ Yes ❑ No 4 SKIP to Item 3.26.
3.23
Describe the cause(s) of the toxicity:
e
w
3.24
Has the treatment works conducted a toxicity reduction evaluation?
❑ Yes ❑ No 4 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 Not applicable because previously submitted
information to the NPDES permitting authority.
Page 9

NPDES Permit Number Faality Name moameo HPP'" mminiu
Alexander Island W WiP Modified March 2021
NCO075205
SECTION•
r
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 7
Column 2
❑ Section 1: Basic Application
❑ w/ variance request(s) ❑ wl additional attachments
Information for All Applicants
Section 2: Additional
0 wl topographic map 0 wl process flow diagram
❑ Information
❑ wl additional attachments
❑� wl Table A ❑ w/ Table D
a Section 3: Information on
❑ wl Table B ❑ wl additional attachments
Effluent Discharges
c
❑ w/Table C
d
Section 4: Not Applicable
0
Section 5: Not Applicable
c
d
O Section 6: Checklist and
❑ w/ attachments
Certification Statement
Y
6.2
Certification Statement
u
I certify underpenalty 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
Name (pent or type first and last name)
Official titre
Brent Milliron
Envir. Compliance Director
Signature
Date signed
n �/yyJ
io/oi/zoza
Page 10

NPDES Permit Number Facility Name Outrell Number Modified Application Form 2A
NCO075205 Alexander Island WWiP 001 1
Modified March 2021
Pollutant
eN aiigel��
Maximum Daily Discharge
Average Daily Discharge Analytical ML or MDL
Number of Method' Include units
Value Unb Samples ( )
Value
Units
Biochemical oxygen demand0
o BODs or ❑ CBODs
(report one
28.7
mg/L
1.41
mg/L
221
SM5210B
MIL
2.0 O MDL
Fecal coliform
370
mg/L
27.91
mg/L
209
SM9222D (MF)
1.0 O MDL
Design flow rate
38,000
gallons
4434
gallons
1491
pH (minimum)
6.0
units
degrees Celsius 97
pH (maximum)
8.5
units
Temperature (winter)
20
degrees Celsius
13.66
Temperature (summer)
28
degrees Celsius
22.55
degrees Celsius
136
Total suspended solids (TSS)
20.7
mg/L
2.6
mg/L
221
SM2540D
2.5 0 MDL
'Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods) approved under au CFR 136 for me aoaryss ur Inmumran Or Punorai it Paiamum.a a.
required under 40 CFR chapter I, subchapter Nor 0. See instructions and 40 CFR 122.21(e)(3).
Z
T
0
CZ)
o M
Page 11

DES Permit Number
NCO075205 I Alexander Island WWTP
001
Modified Application Form 2A
Modified March 2021
Maximum Daily Discharge
Average Daily Discharge
Analytical
ML or MDL
Value
Units
Va
a
Units
Number of
Pollutant
Method'
(include units )
Samples
11 MIL
Ammonia (as N)
4.15
mall.
0.
7
mall.
217
SM4500NH3D
0.2 OO MDL
Chlorine
47
ug/L
2.
ug/L
436
Field -Hach DPD
11 MIL
❑ MDL
total residual, TRC 2
Dissolved Oxygen
10.3
mg/L
7.
5
mg/L
218
Field -Hach DPD
0 MIL
❑ MDL
Nitrate/nitrite
SM450ONO3E
❑ ML
❑ MDL
O Ml.
Kjeldahl nitrogen
SM450DORGB,NH3C
❑MDL
❑ ML
Oil and grease
❑ MDL
Phosphorus
SM450OPE
MI
❑MDL
❑ ML
Total dissolved solids
❑ MDL
' Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., mail
required under 40 CFR chapter I, subchapter N or 0. See instructions and 40 CFR 122.21
2 Facilities that do not use chlorine for disinfection, do not use chlorine elsewhere in the tre
required to report data for chlorine.
approved under 4u U-K iju Tor me analysis or poluttants or ponutani parameters or
process, and have no reasonable potential to discharge chlorine in their effluent are not
EPA Form 3510-2A (Revised 3-19) 1
Page 12

N
,
,
E
,
,
�8 yE
i
` Lin
Eder
r
Iredell ' ounty, State of North Carolina DOT, Esri, HERE, Garmin, INCREMENT P, USGS, EPA, USDA
Printed: Oct 07, 2024 A O U A �' is
0 0.05 0.1 0.2
mi 1
t inch nni ialc 797 ft
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Raw
Effluent
Aeration & Tertiary
Sand
Clarification
Filters
Sludge Holding
Tank
Pumped
and
Hauled
Alexander Island WWTP
t
NCO075205
i;Pr4cess Flow Diagram
Chlorine Contact
Dechlorination
Aeration
Outfa 11001