NC0070289_Renewal (Application)_20230606

Ki.F
F+ i
ROY COOPER a I
Governor a '•
ELIZABETH S.BISER
Secretary
RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
June 06, 2023
Stones Throw Homeowners Association
Attn: Jennifer Eggerichs
PO Box 690725
Charlotte, NC 28227-7013
Subject: Permit Renewal
Application No. NC0070289
Ridgewood Farms at Stones Throw WWTP
Cabarrus County
Dear Applicant:
The Water Quality Permitting Section acknowledges the June 5, 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. 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://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.
Sincerely,
jtitv• WC:1
Wren Thedford
Administrative Assistant
Water Quality Permitting Section
ec: WQPS Laserfiche File w/application
®E ) North Carolina Department of Environmental QuaIitye I Division of Water Resources
Mooresville Regional Office 1670 East Center Avenue,Suite 301 I Mooresville,North Carolina 28115
/✓ 704.663.1699

NPDES Permit Number 1 Facility Name i Modified Application Form 2A
I Modified March 2021
NC0070289 ( RW Farms at ST WWTP 1
NC Department of Environmental Quality-Application for NPDES Permit to Discharge Wastewater
Form
MINOR SEWAGE FACILITIES(Before completing this form,please read the instructions.Failure to follow
NPDES I the instructions ma result in denial of the •••lication.
SECTION 1.BASIC APPLICATION INFORMATION FOR ALL APPLICANTS(40 CFR 122.21j)(1)and(9))
1.1 Facility name
Riegewood Farms at Stones Throw WWTP RECEIVED
FD
Mailing address(street or P.O.box) Ir
PO Box 690725 '\I 0 5 2023
City or town State ZIP co
difin
0 Charlotte NC 28227 DEQ/®WIJNpDES
E Contact name(first and last) Title Phone number Email address
0 Jennifer Eggerichs [e-mail]
c
Location address(street,route number,or other specific identifier) ❑ Same as mailing address
al Olde Creek Trail
LL City or town I State ZIP code
Concord NC 28025
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 '.4.
Applicant name
c Applicant address(street or P.O. box)
0
8 8City or town State ZIP code
c
o Contact name(first and last) Title Phone number ' Email address
.0
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 and applicant
❑ Facility 0 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
0 number for each.)
E Existing Environmental Permits
a ❑ NPDES(discharges to surface ❑ RCRA(hazardous waste) ❑ UIC(underground injection 1
_
c I water) control)
E 1 NC0070289
❑ PSD(air emissions) ❑ Nonattainment program(CAA) ❑ NESHAPs(CAA)
c
w
. 0 Ocean dumping(MPRSA) ❑ Dredge or fill(CWA Section ❑ Other(specify)
x 404)
I
Page 1

I NPDES Permit Number Facility Name i Modified Application Form 2A
Modified March 2021
NC0070289 RW Farms at ST WWTP i
1.7 Provide the collection system information requested below for the treatment works.
Municipality Population Collection System Type ; Ownership Status
Served Served (indicate percentage)
100 %separate sanitary sewer 0 Own 0 Maintain
Stones Throw 200 %_ o combined storm and sanitary sewer ❑ Own 0 Maintain
MHP 0 Unknown 0 Own 0 Maintain
c %separate sanitary sewer 0 Own 0 Maintain
o
%combined storm and sanitary sewer ❑ Own 0 Maintain
mi
0 Unknown 0 Own 0 Maintain
a %separate sanitary sewer 0 Own 0 Maintain
.n %combined storm and sanitary sewer 0 Own 0 Maintain
0 Unknown 0 Own 0 Maintain
E %separate sanitary sewer 0 Own 0 Maintain
>, %combined storm and sanitary sewer ; 0 Own 0 Maintain
`"c 0 Unknown 0 Own 0 Maintain
o
Total
Population 200
O Served
Combined Storm and
Separate Sanitary Sewer System Sanitary Sewer
Total percentage of each type of 100°� °�° 0°�
sewer line(in miles)
a'' 1.8 Is the treatment works located in Indian Country?
o ❑ Yes 0 No
c1.9 Does the facility discharge to a receiving water that flows through Indian Country?
c ❑ Yes 0 No
1.10 Provide design and actual flow rates in the designated spaces. Design Flow Rate
0.050 mgd
70
Annual Average Flow Rates(Actual)
acn
en Two Years Ago Last Year This Year
73 ix
ea 0.04o mgd 0.02o mgd 0.019 mgd
c
w'" Maximum Daily Flow Rates(Actual)
0 Two Years Ago Last Year This Year
0.082 mgd I 0.039 mgd 0.028 mgd
cn 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 y
0_ Q.Q t I Constructed
a'1- Treated Effluent Untreated Effluent i Combined Sewer Bypasses Emergency
Overflows Overflows 1
0
0 1 0 0 0 0 1
Page 2

NPDES Permit Number Facility Name I Modified Application Form 2A
Modified March 2021
NC0070289 RW Farms at ST WWTP
I
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 discharge information in the table below.
Surface Impoundment Location and Discharge Data
Average Daily Volume Continuous or Intermittent
Location Discharged to Surface i (check one)
Impoundment
❑ Continuous
gpd 0 Intermittent
❑ Continuous
gpd 0 Intermittent
❑ Continuous
gpd_ ❑ Intermittent
in
1.14 Is wastewater applied to land?
m ❑ Yes ❑✓ No 4 SKIP to Item 1.16.
0 1.15 Provide the land application site and discharge data requested below.
n Land Application Site and Discharge Data
o I Continuous or
Average Daily Volume Intermittent
Location Size Applied
0 I (check one)
mt
acres 9P 0 Continuous
d ❑ Intermittent
8
0 Continuous
acres gpd 0 Intermittent
o
0 Continuous
c acres gpd ni ❑ Intermittent
0 1.16 Is effluent transported to another facility for treatment prior to discharge?
=3 ❑ Yes m No 3 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?
0 Yes 0 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 I ZIP code
Contact name(first and last) Title
Phone number Email address l
i
Page 3

I NPOES Permit Number Fadlity Name I Modified Application Form 2A
iaodifed March 2021
NC0070289 RW Farms at ST WWTP i
dailyflow rate of the
the name.address.contact information.NPDES number. and average
table below.indicate
1.20 Intheb
receiving facility.
Receiving Facility Data
-a Facility name Mailing address(street or P.O. box)
CO
�c
City or town State ZIP code
0
0 Title
u, Contact name(first and last)
-0 1
0
Phone number
Email address
o NPDES number of receiving facility(if any) 0 None Average daily flow rate mgd
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
8 not have outlets to waters of the State of North Carolina(e.g..underground percolation.underground injection)?
v
R 0 Yes ❑ No 4 SKIP to Item 1.23.
0 1.22 Provide information in the table below on these other disposal methods.
Information on Other Disposal Methods
o Disposal Location of Size of Annual Average Continuous or Intermittent
-0 Method Daily Discharge (check one
Description Disposal Site Disposal Site Volume )
To acres gpd0 Continuous
❑ Intermittent
acres gpd ❑ Continuous
❑ Intermittent
❑ Continuous
acres gpd 0 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.
d Y Consult with your NPDES permitting authority to determine what information needs to be submitted and when.)
Ca) 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
1.25 Provide location and contact information for each contractor in addition to a description of the contractors operational
and maintenance responsibilities.
Contractor Information
Contractor 1 Contractor 2 Contractor 3
c Contractor name
e Env.Process Solutions Greenway Waste Solns.
g (company name)
o Mailing address 7000 Stinson Hartis,Ste F 5600 Lakeview Road
(street or P.O.box)
o City, state,and ZIP Indian Trail,NC 28079 Charlotte,NC 28269
code
T.
ast)tact name(first and Kellie Hedrick
Phone number [phone] [phone]
Email address [e-mail] reese@greenwaywastesolutior
Operational and Certified Operations and Sludge Hauling
maintenance
responsibilities of minor maintenance
contractor
Page 4

NPDES Permit NJmber Facility Name Modified Application Form 2A
NC0070289 i
RW Farms at ST WWTP Modified March 2021
SECTION 2.ADDITIONAL INFORMATION(40 CFR 122.21(j)(1)and(2))
0 Outfalls to Waters of the State of North Carolina
c
2.1 Does the treatment works have a design flow greater than or equal to 0.1 mgd?
rn
❑ Yes ❑ No 4 SKIP to Section 3.
o _
c 2.2 Provide the treatment works'current average daily volume of inflow Average Daily Volume of Inflow and Infiltration
0
and infiltration. gpd
4.2
0
Indicate the steps the facility is taking to minimize inflow and infiltration.
0
0
2.3 Have you attached a topographic map to this application that contains all the required information?(See instructions for
eL 0. specific requirements.)
rn �
0
I El Yes ❑ No
E 2.4 Have you attached a process flow diagram or schematic to this application that contains all the required information?
o a� (See instructions for specific requirements.)
� co
0
o CI YesNo
2.5 Are improvements to the facility scheduled?
0 Yes 0 No 4 SKIP to Section 3.
Briefly list and describe the scheduled improvements.
0
1.
a
a
E
a)
2.
0
In 3.
4,
d
4.
R 2.6 Provide scheduled or actual dates of completion for improvements.
w Scheduled or Actual Dates of Completion for Improvements
(E) Affected End Begin—`— 1 Attainment of
Scheduled Outfalls BeginOperational
o Improvement Construction Construction Discharge
p (list outfall Level
E (from above) number) (MM/DD/YYYY) (MM!DDIYYYY) (MMiDD/YYYY) (MM/DD/YYYY)
1.
s I I
U n 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
I Modified March 2021
NC0070289 RW Farms at ST WWTP
SECTION 3.INFORMATION ON EFFLUENT DISCHARGES(40 CFR 122.21(j)(3)to(5))
3.1 Provide the following information for each outfall.(Attach additional sheets if you have more than three outfalls.)
Outfall Number o01 Outfall Number Outfall Number
State North Carolina
TiTi County Cabarrus
0 City or town Concord
c 2 ft. ft. ft.
o Distance from shore
n Depth below surface 0 ft, ft. ft.
CU
0
Average daily flow rate 0.020 mgd mgd mgd
Latitude o ,, o
Longitude
3.2 Do any of the outfalls described under Item 3.1 have seasonal or periodic discharges?
in
o ❑ Yes ✓❑ No 4 SKIP to Item 3.4.
m 3.3 if so.provide the following information for each applicable outfall.
y ( Outfall Number _ Outfall Number 1 Outfall Number
o
v Number of times per year
g discharge occurs
a Average duration of each
o discharge(specify units)
c Average flow of each mgd mgd mgd
° discharge
�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.
cu
ll Outfall Number Outfall Number Outfall Number
d
N
3
a
Nui 3 6 Does the treatment works discharge or plan to discharge wastewater to waters of the State of North Carolina from
n•
one or more discharge points?
t' Y ✓❑ Yes ❑ No-*SKIP to Section 6.
Page 6

NPDES Permit Number i Facility Name I Modified.Application Form 2A
NC0070289 f RW Farms at ST WWTP ; Mod'led Mardi 2021
3,7 Provide the receiving water and related information(if knownY)for each outfall.
Outfall Number col Outfall Number Outfall Number
Receiving water name Caldwell Creek
Name of watershed,river.
0 or stream system
o- U.S. Soil Conservation l
y Service 14-digit watershed ( ?
o code
Name of state
management/river basin
rn
c U.S.Geological Survey
45 8-digit hydrologic ?
cc cataloging unit code
Critical low flow(acute) ? cfs cfs cfs
Critical low flow(chronic) ? cfs cfs cfs
of
Total hardness at critical ? mg/of mg/L9 m /L of
low flow
CaCO3 CaCO3 CaCO3
3.8 Provide the following information describing the treatment provided for discharges from each outfall.
Outfall Number CO, Outfall Number Outfall Number
Highest Level of 0 Primary 0 Primary 0 Primary
Treatment(check all that 0 Equivalent to 0 Equivalent to 0 Equivalent to
apply per outfall) secondary secondary secondary
O Secondary 0 Secondary 0 Secondary
❑ Advanced 0 Advanced 0 Advanced
❑ Other(specify) 0 Other(specify) 0 Other(specify)
0 -•a Design Removal Rates by
•� Outfall
o BODs or CBODs 85+ % % °/°
a
0 TSS 85+ % I %
I 0 Not applicable 0 Not applicable 1- ❑Not applicable
I
Phosphorus % % %
1 Not applicable 0 Not applicable 0 Not applicable
Nitrogen % % %
Other(specify) 10 Not applicable 0 Not applicable 0 Not applicable
%
Page 7

NPDES Permit Number • Facility Name ( Modified Application Form 2A
1 NC0070289 RW Farms at ST WWTP %iod.Fed 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
Outfall Number 00i Outfall Number Outfall Number
=
0
Disinfection type chlorine tablets
N
d
0
Seasons used all
Dechlorination used? ❑ Not applicable 0 Not applicable ❑ Not applicable
Q Yes ❑ Yes ❑ Yes
❑ No I ❑ No 0 No
3.10 Have you completed monitoring for all Table A parameters and attached the results to the application package?
✓❑ 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
water
Number of tests of receiving
ai
I water
d
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. 0 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?
p 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? No additional sampling required by NPDES
❑ Yes ❑✓ permitting authority.
Page 8
g

NPDES Permit Number Fadiit/Name I Modified Application Form 2A
NC0070289 RW Farms at ST 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?
n No 4 Complete tests and Table E and SKIP to
D Yes Item 3.26.
3.20 Have you previously submitted the results of the above tests to your NPDES permitting authority?
No 4 Provide results in Table E and SKIP to
❑ Yes ❑ 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
(MMIDDNYYY;
a�
c
C
O
c)RI 3.22 Regardless of how you provided your WET testing data to the NPDES permitting authority.did any of the tests result in
toxicity?
c' ❑ Yes ❑ No 4 SKIP to Item 3.26.
3.23 Describe the cause(s)of the toxicity:
c
d
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?
0 Yes Not applicable because previously submitted
information to the NPDES ermittin authori .
Page 9

NPDES Permit Number i Facility Name Modified Applicabon Form 2A
NC0070289 RW Farms at ST WWTP Mfied March 2021
i
SECTION 6.CHECKLIST AND CERTIFICATION STATEMENT(40 CFR 122.22(a)and(d))
6.1 I 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 applicants are required to provide attachments.
Column 1 Column 2
❑ Section 1:Basic Application ❑ wi variance request(s) ❑ WI additional attachments
Information for All Applicants
❑ Section 2:Additional El wi topographic map ❑ wf process flow diagram
Information D wl additional attachments
© wl Table A ❑ wi Table D
Section 3:Information on ✓❑ vr/Table B ❑ wl additional attachments
= Effluent Discharges
°' ❑ wl Table C
Section 4: Not Applicable
0
w Section 5: Not Applicable
❑ Section 6: Checklist and ❑ w/attachments
Certification Statement
Y 6.2 I 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
ak
Signature Date signed
/3 / Z.3
Page 10

Modified Application Form 2A
NPDES Permit Number Facility Name Outfall Number PP
Modified March 2021
L. NC0070289 RW Farms at ST WWTP
TABLE A.EFFLUENT PARAMETERS FOR ALL POTWS
um Maxim DailyAverage Daily Discharge
Discharge g Analytical ML or MDL
Pollutant Number of Method' (include units)
Value Units Value Units Samples
Biochemical oxygen demand Ei ML
10 BOD5 or❑CBOD5 47 mg/L 7.97 mg/L 156 SM52108 2 mg/L p MDL
(report one) —--- —
0 ML
Fecal coliform 600 CFU/100m1 42.05 CFU/100m1 156 SM9222D 1 p MDL
Design flow rate 0.050 MGD 0.02 MGD 1095
pH(minimum) 6.3 SU
pH(maximum) 7.8 su
Temperature(winter) 20.2 deg C 16.11 deg C 315
Temperature(summer) 25.2 deg C 22.27 deg C 450 �_
-- — 0 ML
Total suspended solids(TSS) 90 mg/L 14.01 mg/I. 156 SM2.5400 2.5 p 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).
Page 11

EPA Identification Number NPDES Permit Number Facility Name Outfali Number Modified Application Form 2A
Modified March 2021
NC0070289 RW Farms at ST WWTP
TABLE B. EFFLUENT PARAMETERS FOR ALL POTWS WITH A FLOW EQUAL TO OR GREATER THAN 0.1 MGD
Maximum Daily Discharge Average Daily Discharge — Analytical ML or MDL i
Pollutant Number of Methods (include units)
Value Units Value Units Samples _
ML
Ammonia(as N) 35 mg/L 5.20 mg/L 156 SM4SOONH3D 0.1 mg/L 0 MDL
Chlorine 36 ug/L <20 ug/L 312 SM4500CLG 20 ug/L 0 MDL
(total residual,TRC)2
ML
Dissolved oxygen 7.0 mg/L 6.08 mg/L 156 SM4500G 0.5 mg/L 0 MDL
�_—,
Nitrate/nitrite 23 mg/L 6.38 mg/L 12 SM4500NO3F 0.5 mg/L ©MDL
r —
Kjeldahl nitrogen 76 mg/L 12.48 mg/L — 12 SM4500NH3D 1 mg/L ©MDL
Oil and grease N/A N/A N/A N/A N/A N/A N/A ❑M01
ML
Phosphorus 7.2 mg/L 2.77 mg/L 12 SM4500P-F 0.05 mg/L 0 MDL
❑ML
Total dissolved solids N/A N/A N/A N/A N/A N/A N/A ❑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.
Page 12
EPA Form 3510-2A(Revised 3-19)

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