NC0051322_application_20220825 (2)

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
Carolina Water Service Inc of North Carolina
Attn: Dana Hill, Director of Operations
4944 Parkway Plaza Blvd, Ste 375
Charlotte, NC 28217
Subject: Permit Renewal
Application No. NCO051322
Ashley Hills WWTP
Wake County
Dear Applicant:
NORTH CAROLINA
Environmental Quality
August 25, 2022
Laserfiche
The Water Quality Permitting Section acknowledges the August 25, 2022, 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://deg.nc.gov/permits-regulationslper,mit- uidance/environmental-ai)i)lic6tion-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.
cc: Brent Milliron-CWSNC
ec: WQPS Laserfiche File w/application
Sincerely
Wren e o d
Administrative Assistant
Water Quality Permitting Section
North Carolina Department of Envtonmentai Quality I Division of Water Resources
Raleigh Regional Office 13800 Barren Drive I Raleigh, North Carolina 27609
a'+► 919.7%4200

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO051322
Ashley Hills 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•N
INFORMATION FOR r
1.1
Facility name
Ashley Hills WWTP
Mailing address (street or P.O. box)
PO Box 240908
City or town
State
ZIP code
Charlotte
NC
28224
€
Contact name (first and last)
Title
Phone number
Email address
Dana Hill
Director of Operations
[phone]
dana.hill@carolinawaterservic
_
Location address (street, route number, or other specific identifier) ❑ Same as mailing
address
320 Woods Run
W
City or town State
ZIP code
Knightdale NC
27545
1.2
Is this application for a facility that has yet to commence discharge?
Lase
❑ Yes + See instructions on data submission ❑ No
rfic
requirements for new dischargers.
1.3
Is applicant different from entity listed under Item 1.1 above?
0 Yes ❑ No 4 SKIP to Item 1.4.
Applicant name
Carolina Water Service Inc. of North Carolina
=
Applicant address (street or P.O. box)
PO Box 240908
City or town
State
ZIP code
Charlotte
NC
28224
Contact name (first and last) Title
Phone number
Email address
Dana Hill Director of Operations
[phone]
dana.hill@carolinawaterservic
1.4
Is the applicant the facility's owner, operator, or both? (Check only one response.)
❑r 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
number for each.
Existing Environmental Permits
✓❑ NPDES (discharges to surface
❑ RCRA (hazardous waste)
❑
UIC (underground injection
water)
control)
£
e
NCO051322
Q
❑ PSD (air emissions)
❑ Nonattainment program (CAA)
❑
NESHAPs (CAA)
W
co
a
❑ Ocean dumping (MPRSA) ❑ Dredge or fill (CWA Section
404)
❑
Other (specify)
Page 1

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO051322
Ashley Hills WWTP
Modified March 2021
1.7 Provide the collections stem information requested below for the treatment works.
Municipality
I Population
Collection System Type
Ownership Status
Served
Served
indicate ercen e
100 % separate sanitary sewer
EI
Own
❑
Maintain
®
conn
connections;
%
sanitary
combined storm and sanita sewer
❑
Own
❑
Maintain
m
~2930 Dooulation
❑ Unknown
❑
Own
❑
Maintain
% separate sanitary sewer
❑
Own
❑
Maintain
°
%
combined storm and sanitary sewer
❑
Own
❑
Maintain
❑ Unknown
❑
Own
❑
Maintain
a
a
% separate sanitary sewer
❑
Own
❑
Maintain
%
combined storm and sanitary sewer
❑
Own
❑
Maintain
°
❑ Unknown
❑
Own
❑
Maintain
m
% separate sanitary sewer
❑
Own
❑
Maintain
N%
combined storm and sanitary sewer
❑
Own
❑
Maintain
c
❑ Unknown
❑
Own
❑
Maintain
°
Total
2930
Population
0
Served
1
Separate Sanitary Sewer System
Total percentage of each type of 100 %sewer line in miles
1.8 Is the treatment works located in Indian Country?
c
❑ Yes r❑ No
1.9 Does the facility discharge to a receiving water that Flows through Indian Country?
c ❑ Yes El No
1.10 1 Provide design and actual flow rates in the designated spaces.
a Annual Average Flow Rates Actual
Two Years Ago Last Year
c _C .171 mgd .203 mgd
m" Maximum Daily Flow Rates Actual
Two Years Aeo Last Year
.397 mgd .221 mgd
1.11 Provide the total number of effluent discharge points to waters of the State of North Car
Tntai Numhar of Fffluant Discharea Pnints by Tvne
Combined Storm and
;Ign Flow Rate
250 mgd
This Year
152 mgd
This Year
217 mgd
Constructed
T
LM I. -Treated Effluent
Untreated Effluent
Combined Sewer
Bypasses
Emergency
w
Overflows
Overflows
G 1
Page 2

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO051322
Ashley Hills W WTP
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 0 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 Impoundment Location and Discharge Data
Average Daily Volume
Continuous or Intermittent
Location
Discharged to Surface
(check one)
Impoundment
❑ Continuous
gpd
❑ Intermittent
❑ Continuous 1
gpd
❑ Intermittent
gpd
❑ Continuous
❑ Intermittent
1.14
Is wastewater applied to land?
:E
❑ Yes 0 No 4 SKIP to Item 1.16.
c
1.15
Provide the land application site and discharge data requested below.
C
Land Application Site and Discharge Data
o
Average Daily Volume
Continuous or
o,
Location
Size
Applied
Intermittent
check one
s
acres
gpd
❑ Continuous
c
❑ Intermittent
acres
gpd
❑ Continuous
❑ Intermittent
acres
d
gpd
❑ Continuous
R
❑ Intermittent
='
1.16
Is effluent transported to another facility for treatment prior to discharge?
❑ Yes ❑✓ No 4 SKIP to Item 1.21.
0
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.
Transporter 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
NCO051322 Ashley Hills WWTP Modified March 2021
1.20 1 In the table below, indicate the name, address, contact information, NPDES number, and average daily flow rate of the
;ility Data
m
Facility name
Mailing address (street or P.O. box)
City or town
State
ZIP code
0
c.�
o
Contact name (first and last)
Title
0
s
d
Phone number
Email address
NPDES number of receiving facility (if any) ❑ None Average daily flow rate mgd
W
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)?
s
❑ Yes ❑✓ No + SKIP to Item 1.23.
H
o
1.22
Provide information in the table below on these other disposal methods. —
m
Information on Other Dis osal Methods
s
Disposal Annual Average
Location of Size of Continuous or Intermittent
Method Disposal Site Disposal Site Daily Discharge
(check one)
Description Volume
❑ Continuous
3
acres
gpd ❑ Intermittent
_
❑ Continuous
gpd
acres
❑ Intermittent
acres
gpd
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
to
Section 301(h)) 302(b)(2))
El 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 0 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
0 Contractor name
A (company name
oMailing address
c street or P.O. box
0 City, state, and ZIP
code
c Contact name (first and
U last
Phone number
Email address
Operational and
maintenance
responsibilities of
contractor
Page 4

,ES Permit Number Facility Name Modified Application Form 2A
NCO051322 I Ashley Hills WWTP Modified March 2021
c
OutfaUs to Waters of the State of North Carolina
=
2.1
Does the treatment works have a design flow greater than or equal to 0.1 mgd?
m
0
0 Yes ❑ No 4 SKIP to Section 3.
c
2.2
Provide the treatment works' current average daily volume of inflow
Average Daily Volume of Inflow and Infiltration
50,000 d
9P
and infiltration.
o=
5
Indicate the steps the facility is taking to minimize inflow and infiltration.
Manholes are inspected regularly to detect flow changes with suspect areas inspected by CCTV and repairs made
3
accordingly. Several sections of main have been rehabbed in previous years.
0
_
r
2.3
Have you attached a topographic map to this application that contains all the required information? (See instructions for
E A
specific requirements.)
o
CL
0
❑✓ Yes ❑ No
E
2.4
Have you attached a process flow diagram or schematic to this application that contains all the required information?
(See instructions for specific requirements.)
_
`L
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
m
E
c.
2.
E
w
0
3.
o
m
4.
v
2.6 Provide scheduled
or actual dates of completion for improvements.
Scheduled or Actual Dates of Completion for Improvements
Scheduled
Affected
Begin
End
Begin
Attainment of
>
a
Improvement
Outfalls
(list outfall
Construction
Construction
Discharge
Operational
Level
E
(from above)
(MM/DD/YYY`)
(MM/DD/YYYY)
(MM/DD/YYYY)
(MM/DD'YYY)
m
—
_ —number
_
co 2.
2.7
3.
4. I 1 1 1
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
NC0051322 I Ashley Hills WWTP I Modified March 2021
SECTION•-
• ON i
3.1
Provide the following information for each outfall. (Attach additional
sheets if you have more than three outfalls.)
Outfall Number 001
WWI Number
Outfall Number
State
NC
County
Wake
O
City or town
Knightdale
0
e
Distance from shore
0 ft.
z
Depth below surface
0 ft.
ft.
ft.
0
Average daily flow rate
.150 mgd
mgd
mgd
Latitude
3S' 49 9.25" N
Longitude
7T 2Y 10.8"' W
"
3.2
Do any of the outfalls described under Item 3.1 have seasonal or periodic discharges?
❑ Yes 0 No 4 SKIP to Item 3.4.
m
2' 3.3
If so, provide the following information for each applicable outfall.
s
Outfall Number
Outfall Number
Outfall Number
c
Number of times per year
discharge occurs
d
Average duration of each
`o
dischar e (spec' units
Average flow of each
mgd
mgd
mgd
discharge
in
Months in which discharge
occurs
3.4
Are any of the outfalls listed under Item 3.1 equipped with a diffuser?
❑ Yes ❑r No 4 SKIP to Item 3.6.
3.5
Briefly describe the diffuser t e at each applicable outfall.
Outfall Number
Outfall Number
Outfall Number
m
-
c vS 3.6 Does the treatment works discharge or plan to discharge wastewater to waters of the State of North Carolina from
1» = one or more discharge points?
3 ❑ Yes ❑ No 4SKIP to Section 6.
Page 6

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO051322
Ashley Hills 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
Poplar Creek
Name of watershed, river,
Neuse River Basin
0
or stream system
c
U.S. Soil Conservation
m
Service 14-digit watershed
030202011103
c
code
Name of state
Neuse
3
m
managementtriver basin
U.S. Geological Survey
8-digit hydrologic
03020201
cataloging unit code
Critical low flow (acute)
cfs
cfs
cfs
Critical low flow (chronic)
cfs
cfs
cfs
Total hardness at critical
mg/L of
mg/L of
mg/L of
low flow
CaCO3
CaCO3
CaCO3
3.8 Provide the following information
describing the treatment provided for discharges from each
outfall.
Outfall Number 001
Outfall Number
Outfall Number
Highest Level of
❑ Primary
❑ Primary
❑ Primary
Treatment (check all that
❑ Equivalent to
❑ Equivalent to
❑ Equivalent to
apply per outfall)
secondary
secondary
secondary
0 Secondary
❑ Secondary
❑ Secondary
❑ Advanced
❑ Advanced
❑ Advanced
❑ Other (specify)
❑ Other (specify)
❑ Other (specify)
c
0
o.
Design Removal Rates by
0
Outfall
w
m
BOD5 or CBOD5
85 %
%
%
c
m
2
TSS
85 %
%
%
f-
0 Not applicable
❑ Not applicable
❑ Not applicable
Phosphorus
/o o
0
/o
0
/o
0 Not applicable
❑ Not applicable
❑ Not applicable
Nitrogen
%
%
%
Other (specify)
❑ Not applicable
❑ Not applicable
❑ Not applicable
Page 7

NPDES Permit Number
NCO051322
Facility Name
Ashley Hills WWTP
Modified Application Form 2A
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.
i UV Disinfection
Disinfection type
Seasons used
Outfall Number 001
UV
All
Dechlorination used? Not applicable
❑ Yes
❑ No
Outfall Number
❑ Not applicable
❑ Yes
❑ No
Outfall Number
❑ Not applicable
❑ Yes
❑ No
3.10 Have you completed monitoring for all Table A parameters and attached the results to the application package?
0 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 0 No -* 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
A
c*
Number of tests of discharge
water
Number of tests of receiving
water
m
I>G
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 + 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?
❑ Yes 0 No additional sampling required by NPDES
permitting authority.
Page 8

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO051322
Ashley Hills 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 0 No 4 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 3 Provide results in Table E and SKIP to
Item 3.26.
3.21
Indicate the dates the data were submitted to your NPDES permitting authority and provide a summary of the results.
Date(s) Submitted
Summary of Results
MMIDD
m
c
w
c
0
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 Y� Y
c
toxicity?
❑ Yes ❑ No + SKIP to Item 3.26,
2
3.23
Describe the cause(s) of the toxicity:
c
m
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 ID Not applicable because previously submitted
information to the NPDES Dermittinq authorit
Page 9

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NPDES Permit Number Facility Name Modified Application Form 2A
NCO051322 Ashley Hills WWTP Modified March 2021
6.1 In Column 1 below, mark the sections of Form 2A that you have completed and are submitting with your application. For
each section, specify in Column 2 any attachments that you are enclosing to alert the permitting authority. Note that not
all aDDlicants are reauired to Drovide attachments.
Column 1
Column 2
Section 1: Basic Application
❑
w/ variance request(s)
❑
w/additional attachments
Information for All A licants
Section 2: Additional
❑
wl topographic map
❑
w/ process flow diagram
Information
❑
w/ additional attachments
❑✓
w/ Table A
❑
w/ Table D
❑
Section 3: Information on
✓❑
w/ Table B
❑
w/ additional attachments
Effluent Discharges
❑
wl Table C
Section 4: Not Applicable
Section 5: Not Applicable
❑ Section 6: Checklist and ❑ w/ attachments
Certification Statement
6.2 Certification Statement
1 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
forgathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and
complete. 1 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
Dana Hill Director of Operations
Signature Date signed
DidreN sy..tl M a.w xa
Dana Hill 07/19/2022
w.o: i m n...no.ar: aowm.rt
tlon: �vur.igiNq lo®tlm Mn
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Page 10

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