WQ0045736_More Information Received_20241119

Initial Review
Reviewer
nathaniel.thorn burg
Is this submittal an application? (Excluding additional information.) *
Yes No
If not an application what is the submittal type?* Annual Report
Residual Annual Report
Additional Information
Other
Permit Number (IR) * W00045736
Applicant/Permittee Zadell Development, LLC
Email Notifications
Does this need review by the hydrogeologist? * Yes No
Regional Office
CO Reviewer
Admin Reviewer

Submittal Form
Project Contact Information
Please provide information on the person to be contacted by NDB Staff regarding electronic submittal, confirmation of receipt, and other correspondence.
...................................................................................................................................................................................................................................................................................... ... ... ... ... ... .. ... ... ... ... ..
Name* John R Harman, PE
Email Address*
[e-mail]
Project Information
.........................
Application/Document Type*
New (Fee Required)
Modification - Major (Fee Required)
Renewal with Major Modification (Fee
Required)
Annual Report
Additional Information
Other
Phone Number*
9198182077
Modification - Minor
Renewal
GW-59, NDMR, NDMLR, NDAR-1,
N DAR-2
Residual Annual Report
Change of Ownership
We no longer accept these monitoring reports through this portal. Please click on the link below and it will take you to the correct form.
https://edoes.deq.nc.gov/Forms/NonDischarge_Monitoring_Report
Permit Type:*
Wastewater Irrigation
High -Rate Infiltration
Other Wastewater
Reclaimed Water
Closed -Loop Recycle
Residuals
Single -Family Residence Wastewater
Other
Irrigation
Permit Number:*
WQ0045736
Has Current Existing permit number
Applicant/Permittee Address*
318 EDINBURGH DR, CARY, NC
Facility Name*
212 Anfield Rd. SFR
Please provide comments/notes on your current submittal below.
Attention: Elton Luong, Engr. II
At this time, paper copies are no longer required. If you have any questions about what is required, please contact Nathaniel Thornburg
at [e-mail].
Please attach all information required or requested for this submittal to be reviewed here.
(Application Form, Engineering Plans, Specifications, Calculations, Etc.)
Binder-JRH Rsponse to DWR -Lot 7 111824.pdf 1.77MB
Upload only 1 PDF document (less than 250 MB). Multiple documents must be combined into one PDF file unless file is larger
than upload limit.
* By checking this box, I acknowledge that I understand the application will not be accepted for pre -review until the fee (if required) has
been received by the Non -Discharge Branch. Application fees must be submitted by check or money order and made payable to the
North Carolina Department of Environmental Quality (NCDEQ). I also confirm that the uploaded document is a single PDF with all parts
of the application in correct order (as specified by the application).
Mail payment to:
NCDEQ — Division of Water Resources
Attn: Non -Discharge Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
Signature
Submission Date 11/19/2024

JOJL JL1 \ R. Hl R ■ JL1 iN, P.E.
PROFESSIONAL CONSULTING ENGINEER
2112 White Oak Road..... Raleigh, North Carolina.....27608
November 18, 2024 [e-mail]
Mr. Elton Luong, Engineer II
Division of Water Resources
NCDENR-Non Discharge Unit; Engineering & Permits
512 N Salisbury St.
Raleigh, NC 27601
Re: Response to DWR Comment Letter of 11/01/2024
WQ0045736-SFR Wastewater Irrigation System
Lot 7-Anfield Estates Subdivision; Chatham County, NC
Dear Mr. Luong:
The purpose of this correspondence is to offer a reply to your comments/additional information
requested in your letter of November 1, 2024. Responses below will be given, more or less, in the
order of the items listed in your letter.
Item"A.1" thru "EX': No Comments, or Responses provided elsewhere
Item "F.1": Even though the Division acknowledges that Setback Waivers are not required at this
time for Permit Issuance, the applicable Setback Waivers are proposed to be provided by specific
references in the Subdivision Covenants which are currently under review by Legal Counsel of your
Division.
Items "G.1" thru "G.2" Soil Evaluation: These comments have been addressed the Soil
Scientist's Revised Report and Response Letter and has been attached herewith.
Item 1111.1." Engineering Plans:
Response: A note has been added to Sheet 2 of the Plans regarding the correction for the Soil Series
as "Creedmoor-Green Level" which now agrees with the Application and Soil Report.
Item "H.2: A Revised Sheet 2 is updated and attached to show Top of Bank & Wetland Setbacks.
No effective changes were necessary to the system layout.
Items "I.1" thru 11M.1": No Comments were provided, and no Response were required.
It is hoped that the foregoing responses are satisfactory for staff to conclude their review pursuant to
permit issuance. If any questions arise regarding this matter, please do not hesitate to call or write.
Reegards,� f�
74 /f. TlQI�' 4f
John R. Harman, PE
Consulting Engineer (NC PE #9810)

�m
4`% f/Qacs�m
PPLICAc R�AS-
'22t1 j.. 1 .1
ORT i f 1 SUITABhk
DEIGNAJK� j
SCALIll 40 t��---'��/
40' 20'NOTE: r
1. THE SOIL SERIES COVERING ALL LOTS WITHIN /
THIS DEVELOPMENT ARE REPORTED TO BE A
CREEDMOOR-GREEN LEVEL SERIES. FULL r
DESCRIPTIONS CAN BE FOUND IN THE SOILS
REPORT PREPARED FOR THIS PROJECT BY
PIEDMONT ENVIRONMENTAL ASSOCIATES, P.R.
2. THE COMPLIANCE BOUNDARY FOR THE O T IS I
DISPOSAL SYSTEM AS REQUIRED BY 15A NCAC 02L.
0107(n) ARE THE PROPERTY LINES; AND, THE
REVIEW BOUNDARY IS HALF THE DISTANCE
BETWEEN THE COMPLIANCE BOUNDARY AND THE
WASTEWATER APPLICATION AREA. (15A NCAC 02L 0�
0108
3. WAIVERS FOR FRONT & SIDE PROPERTY LINE
SETBACKS ARE NOT REQUIRED DUE TO PERMITEE
OWNING ADJACENT LOTS [PER 15A NCAC .02T
.0606(d) I.

PIEDMONT
ENVIRONMENTAL
ASSOC1:0 I A T E S, P. A.
5/14/2024, REVISED 11/6/24 Project # 5242
Zadell Development, LLC
Attn: Kyler Zadell
218 Edinburgh Dr.
Cary, NC 27511
Soils Report for Proposed Residential Surface Drip Wastewater Irrigation System
Project Name: Anfield Subdivision, Lot 7
A detailed soil evaluation on the above referenced tract was conducted to determine
suitability for a subsurface or surface wastewater system. This report is being prepared to
satisfy the requirements set forth by 15A NCAC 02T.0600 concerning the soils report for
single family surface wastewater systems since this property does not contain enough
suitable soils to support a flow reduced 5-bedroom subsurface septic system. The
location and characteristics of a site that is potentially useable for a surface drip irrigation
wastewater system was identified. This report details our findings and provides the
necessary soil/site information needed for a surface irrigation system to be designed by a
professional engineer. This fieldwork was completed in April, 2024.
The potentially useable soil area was located in the field and is shown on the
accompanying soils map (Attachment 1). The proposed disposal area is compliant with
buffers for surface wastewater systems. The map also shows the locations where
measurements of saturated hydraulic conductivity (Ksat) were performed.
This site is located in the "Triassic Basin" geologic unit of Chatham County. Upland
soils on the site are generally similar to the Creedmoor-Green Level Complex soil series.
These soils have expansive clay mineralogy and may have indications of soil wetness
present in the subsurface horizons. Soil wetness indicators are considered to be
perched based on guidance and interpretations of the Chatham County soil survey
document. These types of soils are generally unsuitable for conventional subsurface
septic systems. However, the favorable soil characteristics of the surface horizons offer
the opportunity for surface application of treated wastewater.
Soil Evaluation
The soil condition of the proposed wastewater area is described with the borings shown
on the attached soils map, as well as in the accompanying Ksat location soil profile
descriptions (Attachment 2).
216 S. Swing Rd., Suite 1 Y. Greensboro, NC 27409 Y. 336-662-5487

The landscape position for the proposed irrigation field is on a broad side slope with a
sandy loam A horizon. We recommend a maximum instantaneous irrigation rate of no
greater than 0.3 in/hr for design purposes. Measurements of saturated hydraulic
conductivity (Ksat) were conducted within the Bt horizon at three locations within each
of the two proposed drip disposal area. The Bt horizon was tested because it was the
most restrictive soil horizon based on texture and mineralogy.
The geometric mean Ksat of the native Bt horizon (most restrictive) was 0.042 in/hr.
Ksat calculations and field data are shown in Attachment 3.
Single Familv Loading Rate Worksheet
A single-family water balance calculation was conducted per the above referenced
regulation. Based on the geometric mean Ksat and our field observations, these soils fall
under Loading Rate Group SFR-B and could therefore be loaded from 19.5-26 in/yr.
Parameters utilized in the SFR Irrigation Area Calculation Worksheet are described
below:
Potential Evapotranspiration (PET) and 80th Percentile Irrigation:
Data from a nearby site (RDU International Weather Station) for a 77 year period was
utilized in the model per NC DWQ policy guidelines for these parameters. This data is
shown in the attached SFR Irrigation Area Calculation Worksheet (Attachment 4).
Drainage Rate and Discussion of Drainage Coefficient Utilized in the SFR Irrigation
Area Worksheet:
We are proposing a drainage coefficient of 12.5%, which results in an actual Annual
Hydraulic Loading Rate of*24.18 inches/year.
Drainage coefficients were first introduced by US EPA as a way of "penalizing"
wastewater movement through the soil profile since it was assumed that wastewater
carried concentrations of organic substances that would form a "biomat", subsequently
retarding the rate of this wastewater movement over time. It is generally held that the
cleaner the wastewater, the higher the drainage coefficient that could be specified.
Unfortunately, to our knowledge, no rigorous scientific testing has been conducted to
assess how this coefficient can vary as a function of wastewater treatment. In this case, a
relatively high level of treatment (TSII) is specified for the proposed waste stream, and a
drainage coefficient of 12.5% allowed for an annual irrigation rate that was in the range
of appropriate values for the loading rate groups provided by NC DEQ. Similar annual
loading rates have been specified for soils in this region by NC DEQ for many years,
including adjacent lots in this same project.

In the case of this submittal, the Ksat data were found to be relatively consistent with one
another. We recognize that the subsoil is restrictive as evidenced by the perched soil
wetness indicators, but the proposed drain field is located mostly on a broad linear side
slope with 4-5% slopes, thereby preventing ponding of any applied wastewater. The soil
characteristics are also consistent with one another as evidenced by the soil boring logs
and soil profile descriptions, suggesting that unexpected soil inclusions should not be of
concern.
Standard Fertilitv Analvsis
Soils within the proposed spray area were also analyzed for current fertility conditions.
Because of similar landscape type and management conditions, one composite sample
was used to infer soil fertility status within the proposed dispersal area. The standard soil
fertility analysis was completed by Waypoint Analytical Laboratories, Inc. Soil sample
results are included in "Soil Analysis Report" provided by Waypoint Analytical
(Attachment 5). Base saturation and exchangeable sodium percentage were determined
by calculation to be 64% and 1.58% respectively. Appendix 5 also contains information
on other soil parameters such as specific nutrient indices and pH.
Conclusions
Site disturbance could create unsuitable conditions for the proposed system and should
therefore be minimized prior to construction. A permanent vegetative cover should be
immediately established and/or maintained over the entire application field after
installation.
An individual wastewater system permit will be required for this property prior to
obtaining a building permit. This will involve a detailed evaluation by the state to
determine, among other things, system size and layout, drive/parking and building
location. Only after developing this information can a final determination be made
concerning specifics of system design and site utilization. The letter of denial regarding
subsurface septic systems issued by Chatham County Environmental Health should also
be included in the application for a surface application system.

If you have any further questions, please feel free to call [phone].
Sincerely,
G. Christopher Murray, MS
NC Licensed Soil Scientist
Piedmont Environmental Associates, PA
List of Attachments:
Attachment 1 - Soil Map
Attachment 2 - Soil Profile Descriptions at Ksat Locations
Attachment 3 - Ksat Summary and Field Data
Attachment 4 - SFR Irrigation Area Workbook Pages (Including Project Information,
Potential Evapotranspiration Worksheet, 801 Percentile Precipitation Worksheet and
Irrigation Area Calculation Worksheet)
Attachment 5 - Standard Fertility Analysis

Attachment 1 - Soil/Site Map Anfield Estates, Lot 7
PIEDMONT Job# 3769
ENVIRONMENTAL 2 r e Swing RSuite 1 pate: 5117/24
A S 5 0 C I A T E s, a. A. Greensboro, NCC om Client: Zadeil Development, LLC
piedmontsoit.cCounty: Chatham
Legend
K
(12 �'p) ��!
�i
Ksat Test Locations
NC DEQ Soil Areas
(Most Similar
'
t12, 73}
CreedmoorjGreen Level
Complex)
NC DEQ Boring Logs
(Depth to Pedoxr Depth
,o
to Expansive)

Attachment 2 - Soil Profile Descriptions at Ksat Locations
Project: Anfield Lot 7 % Slope:
4%
Site: Ksat Nest 1 Vegetation:
Wooded
Name: Zadell Dev. Conducted By:
GC Murray
Date:
March, 2024
Soil Series:
Creedmoor/Green Level
s
Lo
a
r
c
V
U
O
N
s
r
k
G1
L
CL
0
G
G
A
0-2
10YR 6/4
Bt
2-27
10YR 5/6
10YR 6/1, 2.5YR 5/8
BC
28-48
10YR 5/6
10YR 6/1, 2.5YR 5/8
Legend:
Texture
s
sand
I
loam
si
silt
sil
silt loam
c
clay
cl
clay loam
scl
sandy clay loam
sl
sandy loam
Sid
silty clay loam
PIEDMONT
ENVIRONMENTAL
ASSO C I A T E S, P. A.
o
w
U
N
a
v
r
C7
v�
y
N_
O
U
L1
L1
L1
C
0
Q
fn
x
L1
w
L
��+
��+
��+
U
ayi
C
iC+
iCC+
-NN�
k
CCy
-
-
-
moist
sl
wk
med
qr
fr
ss
com
med
C&D
moist
c
mod
med
sbk
vfi
vs
com
med
C&D
moist
Sid
wk
med
sbk
fi
s
Structure Grade
Structure Tvbe
wk weak
gr
granular
m moderate
pl
platy
str strong
pr
prismatic
cpr
columnar
abk
angular blocky
sbk
subangular blocky
sg
single grained
ma
massive
r
ii
Q.
sp
vp
p
Seasonal High Water Table:
Structure Size Depth (") Type (apparent/perched)
f fine 13 perched
med medium
.-�,D SOIL SAY
�k �P HER�r�J
G �
Moist Consistencv „
fr friable Y
vfr very friable
fi firm 7iF� tisa4
vfi very firm ►N?ani

Attachment 2 - Soil Profile Descriptions at Ksat Locations
Project: Anfield Lot 7 % Slope:
4%
Site: Ksat Nest 2 Vegetation:
Wooded
Name: Zadell Dev. Conducted By:
GC Murray
Date:
March, 2024
Soil Series:
Creedmoor/Green Level
s
Lo
a
r
c
V
U
O
N
s
r
k
G1
L
CL
0
G
G
A
0-2
10YR 6/4
Bt
2-24
7.5YR 4/6
10YR 6/1, 2.5YR 5/8
BC
28-48
7.5YR 4/6
10YR 6/1, 2.5YR 5/8
Legend:
Texture
s
sand
I
loam
si
silt
sil
silt loam
c
clay
cl
clay loam
scl
sandy clay loam
sl
sandy loam
Sid
silty clay loam
PIEDMONT
ENVIRONMENTAL
ASSO C I A T E S, P. A.
o
w
U
N
a
v
r
C7
v�
y
N_
O
U
L1
L1
L1
C
0
Q
fn
x
L1
w
L
��+
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U
ayi
C
iC+
iCC+
-NN�
k
CCy
-
-
-
moist
sl
wk
med
qr
fr
ss
com
med
C&D
moist
c
mod
med
sbk
vfi
vs
com
med
C&D
moist
Sid
wk
med
sbk
fi
s
Structure Grade
wk weak
m moderate
str strong
Structure Tvbe
gr
granular
pl
platy
pr
prismatic
cpr
columnar
abk
angular blocky
sbk
subangular blocky
sg
single grained
ma
massive
r
ii
Q.
sp
vp
p
Seasonal High Water Table:
Structure Size Depth (") Type (apparent/perched)
f fine 13 perched
med medium
.-�,D SOIL SAY
�k �P HER�r�J
G �
Moist Consistencv „
fr friable Y
vfr very friable
fi firm 7iF� tisa4
vfi very firm ►N?ani

Attachment 2 - Soil Profile Descriptions at Ksat Locations
Project: Anfield Lot 7 % Slope:
4%
Site: Ksat Nest 3 Vegetation:
Wooded
Name: Zadell Dev. Conducted By:
GC Murray
Date:
March, 2024
Soil Series:
Creedmoor/Green Level
s
Lo
a
r
c
V
U
O
N
s
r
k
G1
L
CL
0
G
G
A
0-2
10YR 6/4
Bt
2-27
5YR 5/6
10YR 6/1, 2.5YR 5/8
C
27-48
5YR 5/6
10YR 6/1, 2.5YR 5/8
Legend:
Texture
s
sand
I
loam
si
silt
sil
silt loam
c
clay
cl
clay loam
scl
sandy clay loam
sl
sandy loam
Sid
silty clay loam
PIEDMONT
ENVIRONMENTAL
ASSO C I A T E S, P. A.
o
w
U
N
a
v
r
C7
v�
y
N_
O
U
L1
L1
L1
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0
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x
L1
w
L
��+
��+
��+
U
ayi
C
iC+
iCC+
-NN�
k
CCy
-
-
-
moist
sl
wk
med
qr
fr
ss
com
med
C&D
moist
c
mod
med
sbk
vfi
vs
com
med
C&D
moist
Sid
structureless
Structure Grade
Structure Tvbe
wk weak
gr
granular
m moderate
pl
platy
str strong
pr
prismatic
cpr
columnar
abk
angular blocky
sbk
subangular blocky
sg
single grained
ma
massive
r
ii
Q.
sp
vp
Seasonal High Water Table:
Structure Size Depth (") Type (apparent/perched)
f fine 13 perched
med medium
sou sc�
JC+k; 0 HER �r�r
t
Moist Consistencv
. G
„
fr friable
Y
vfr very friable
fi firm
7iFQe ti2aa�
►uCani
vfi very firm

Appendix 3, Geometric Mean Ksat Data, Lot 7, Anfieid Estates Subdivision
Nest
Horizon
Depth(")
Ksat (in/hr)
N7-1
Bt
12
0.020
N7-2
Bt
14
0.011
N7-3
Bt
14
0.354
Geometric Mean Ksat:
Horizon Ksat (in/hr)
Bt 0.042

INFORMATION
SITE ID #
N7-1
LOCATION (COORDINATE SYSTEM)
Date
4/30/2024
Measurement Conducted By
SST
Job Name
4980 Beaver Creek Rd.
Job Number
5242
Weather Condition
Temperature
Soil
Horizon
Bt
Source of Water
Depth of Hole
12
Radius of Hole
2.54
Initial Depth of Water in Hole (H)
15.24
cm
Final Depth of Water in Hole (H)
15.24
cm
Ratio H/r
6.0000
Start Saturation Time
Start of Steady -State Condition Time
No. of Reservoirs Used at Steady -State
1
A factor in Equation [2] of Manual
0.001127
Hole Depth: 12 30.48
HI: 6 15.24
Hr- 6 15.24
Clock
Time
Water Level
Reading
Time Interva
Minute
Change in
Water Level
cm
Flow Volume
Flow rate
Q
Flow rate
Q
Ksat
Ksat
cm/day
Equivalent
Ksat
cm
cm3
cm3/min
cm3/hour
cm/hour
gpd/sq. ft
11.35
47.8
1205.
46.7 30.00 1.1
44.51 30.00 2.2
43.41 30.00 1.1
42.21 30.00 1.2
41.31 30.00 0.9
40.21 30.00 1.1
391 30.00 1.2
37.91 30.00 1.1
22
0.73
44.0
0.050 1.19
0.099 [ 2.38
0.050 [ 1.19
0.054 [ 1.30
0.041 [ 0.97
0.050 [ 1.19
0.054 [ 1.30
0.050 [ 1.19
0.29
12.35
44
1.47
88.0
0.59
13.05
22
0.73
44.0
0.29
13-351
24
0.80
48.0
0.32
14.05
18
0.60
36.0
024
14.35
22
0.73
44.0
029
15.05
24
0.80
48.0
0.32
15.35
22
0.73
44.0
0.29
240.00 Average 0.051
AVERAGE
cm/hr: 0.051
in/hr: 0.020

INFORMATION
SITE ID #
N7-2
LOCATION (COORDINATE SYSTEM)
Date
4/18/2024
Measurement Conducted By
SST
Job Name
4980 Beaver Creek Rd.
Job Number
5242
Weather Condition
Temperature
Soil
Horizon
Bt
Source of Water
Depth of Hole
14
Radius of Hole
2.54
Initial Depth of Water in Hole (H)
15.24
cm
Final Depth of Water in Hole (H)
15.24
cm
Ratio H/r
6.0000
Start Saturation Time
Start of Steady -State Condition Time
No. of Reservoirs Used at Steady -State
1
A factor in Equation [2] of Manual
0.001127
Hole Depth: 14 35.56
HI: 6 1524
Hr- 6 1524
Clock
Time
Water Level
Reading
Time Interva
Minute
Change in
Water Level
cm
Flow Volume
Flow rate
Q
Flow rate
Q
Ksat
Ksat
cm/day
Equivalent
Ksat
cm
cm3
cm3/min
cm3/hour
cm/hour
gpd/sq. ft
11.38
46.8
1205.
45.9 27.00 0.9
45.61 30.00 0.3
44.11 30.00 1.5
43.41 50.00 0.7
42.81 10.00 0.6
42.21 30.00 0.6
41.61 30.00 0.6
411 30.00 0.6
18
0.67
40.0
0.045 1.08
0.014 [ 0.32
0.068 [ 1.62
0.019 [ 0.45
0.081 [ 1.95
0.027 [ 0.65
0.027 [ 0.65
0.027 [ 0.65
0.27
12.35
6
0.20
12.0
0.08
13.05
30
1.00
60.0
0.40
13-551
14
0.28
16.8
0.11
14.05
12
1.20
72.0
0.48
14.35
12
0.40
24.0
0.16
15.05
12
0.40
24.0
0.16
15.35
12
0.40
24.0
0.16
177.00 average 0.027
AVERAGE
cm/hr: 0.027
in/hr: 0.011

INFORMATION
SITE ID #
N7-3
LOCATION (COORDINATE SYSTEM)
Date
4/30/2024
Measurement Conducted By
SST
Job Name
4980 Beaver Creek Rd.
Job Number
5242
Weather Condition
Temperature
Soil
Horizon
Bt
Source of Water
Depth of Hole
14
Radius of Hole
2.54
Initial Depth of Water in Hole (H)
15.24
cm
Final Depth of Water in Hole (H)
15.24
cm
Ratio H/r
6.0000
Start Saturation Time
Start of Steady -State Condition Time
No. of Reservoirs Used at Steady -State
2
A factor in Equation [2] of Manual
0.001127
Hole Depth:
HI:
Hr-
Time
Reading
cm
Minute
Water Level
cm
IQ
Q
[
cm/day
Ksat
gpdh
cm3
cm3/min
cm3/hour
cm/hour
11.40
1205.
12.35
13.05
13.55
14.05
14.35
15.05
15.35
40.4
33.7
28.2
231
19.
15.
11.
7.
4
25.00
30.00
30.00
50.00
10.00
30.00
30.00
30.00
205.00
_
_
_
_
6.7
5.5
4.5
4.2
4.1
3.8
3.7
3.9
703.5
28.14
1688.4
1.903 45.67
1.302 [ 31.24
1.065 [ 25.56
0.596 [ 14.31
2.911 [ 69.87
0.899 [ 21.58
0.876 [ 21.02
0.923 [ 22.15
0.899
1
577.5
19.25
1155.0
i
472.5
15.75
945.0
f
441
8.82
529.2
430.5
43-051
2583.01
1
399
13.30
798.0
388.5
12.95
777.01
409.5
13651
819.01
Everacie
AVERAGE
cm/hr: 0.899
in/hr: 0.354
14 35.56
1524
1524
0.36

Project Name: Anfield Estates Subdivision, Lot 7
Facility Address: 4980 Beaver Creek Road
Pittsboro, NC
County: Chatham County, NC
Prepared by: G. Christopher Murray, L.S.S.
Project Design Flow = 480 gal/day
# of Bedrooms
Required Flow
2 bedrooms
240gal/day
3 bedrooms
360 gal/day
4 bedrooms
480 gal/day
5 bedrooms
600 gal/day
6 bedrooms
720 gal/day
SFR-LRW 9-08

Project Name: Anfield Estates Subdivision, Lot 7
Location of Temperature Data: RDU Int. Airport - Raleigh, NC
Starting Year of Data Record: 1946
Ending Year of Data Record: 2023
Period of Record (years): 77
Source of Data: State Climate Office of North Carolina
Site Latitude (degrees) 35.79
Calculated PET: 32.80 inches
Mean Monthly
Calculated
Temperature
Daylight
PET
(degrees F)
Hours 112
Heat Index
(inches)
January
40.5
0.87
0.92
0.28
February
43.3
0.85
1.41
0.43
March
50.5
1.03
2.98
1.17
April
60.0
1.09
5.56
2.43
May
67.4
1.21
7.96
3.97
June
74.6
1.22
10.53
5.37
July
77.9
1.23
11.76
6.14
August
76.5
1.16
11.25
5.52
September
70.7
1.03
9.10
3.89
October
60.3
0.97
5.67
2.20
November
50.8
0.86
3.04
0.99
December
43.1
0.85
1.38
0.42
Tota 1 =
71.57
32.80
SFR-LRW 9-08

Project Name: Anfield Estates Subdivision, Lot 7
Location of Precipitation Data: RDU Int. Airport - Raleigh, NC
Starting Year of Data Record: 1946
Ending Year of Data Record
Period of Record (years)
Source of Data
80th Percentile Annual Precipitation
2023
77
State Climate Office of North Carolina
54.48
80th
%of Mean
Percentile
Mean Monthly
Annual
Monthly
Precipitation
Precipitation
Precipitation
January
3.27
7.45
4.06
February
3.00
6.83
3.72
March
3.64
8.29
4.52
April
3.27
7.45
4.06
May
3.64
8.29
4.52
.rune
4.02
9.15
4.99
July
5.10
11.61
6.33
August
4.67
10.63
5.79
September
4.07
9.27
5.05
October
2.97
6.76
3.68
November
3.05
6.94
3.78
December
3.22
7.33
3.99
Total =
43.92
100.00
54.48
SFR-LRW 9-08

Project Name: Anfield Estates Subdivision, Lot 7
Design Flow = 480
SFR Loading Rate Group: SFR-B
Limiting Soil Ksat = 0.042
Drainage Coefficient = 0.125
Drainage Rate =
Annual Hydraulic
gal/day Loading Rate = 24.18 inchlyr
inch/hour Irrigation Area = 11,623 square ft
= 0.26683 acres
0.126 inch/day (Formula:Ksar" Drainage Coefficient "24)
Number of Days
in the Month
PET m1moL
Vertical
Drainage
in/mo
80th Percentile
Monthly
Precipitation
in/mo
Maximum
Allowable
Irri ation in/mo
Maximum Allowable
Irrigation
allons/da
Maximum Allowable
Irrigation
allons/month
January
31
0.28
3.91
4.47
0.00
0
0
February
28
0.43
3.53
3.72
0.24
61
1,714
March
31
1.17
3.91
4.52
0.56
132
4,082
April
30
2.43
3.78
4.06
2.15
519
15,575
May
31
3.97
3.91
4.52
3.36
785
24,345
June
30
5.37
3.78
4.99
4.16
1,005
30,158
July
31
6.14
3.91
6.33
3.72
870
26,955
August
31
5.52
3.91
5.79
3.63
848
26,295
September
30
3.89
3.78
5.05
2.62
632
18,974
October
31
2.20
3.91
3.68
2.42
565
17,520
November
30
0.99
3.78
3.78
0.99
239
7,180
December
31
0.42
3.91
3.99
0.33
77
2,402
TOTAL = 365 32.80 45.99 54�89
Formulas: (Max. Allowable Irrigation) = (PET) + (Drainage) - (Precipitation)
SFR Loading Rate Table
SFR
Loading
Rate
Groulo
Maximum Annual
Loading Rate
(in/yr)
Low - High
Geometric Mean
Ksar Range
(in/hr)
Low - High
SFR-A
26.0 - 50.0
>0.05
SFR-B
19.5 - 26.0
0.015 - 0.05
SFR-C
13.0 -19.5
0.003 - 0.015
SFR-D
0.0 -13.0
0.0 - 0.003
Assignmentto a SFR Loading Rate Group for each 15A NCAC 02T .0600 permit
application shall be determined by the geometric mean of insitu saturated
hydrualic conductivity data collected in the most restrictive horizon for each soil
mapping unit within the irrigation area.
24A8 5734.83 175,200
Required Flow
2 bedrooms
240gal/day
87,600 al/ r
3 bedrooms
360 gal/day
131,400 gal/yr
4 bedrooms
480 gal/day
175,200 gal/yr
5 bedrooms
600 gal/day
219,000 gal/yr
6 bedrooms
720 gal/day
262,800 gal/yr
Maximum allowable irrigation: 175,200 gal/yr
The Maximum Allowable Irrigation number must be greater
than or equal to the required flow.
SFR-LRW 9-08

Waypointo
ANALYTICAL
Client :
Piedmont Enviromental Assoc., P. A.
216 South Swing Road
Suite 1
Greensboro NC 27310
Lab No: 25424
Test Method Results
2850 Daisy Lane, Wilson, NC 27896
Main 252-206-1721 ° Fax [phone]
www.waypointanalytical.com
"Every acre... Every year®'
SOIL ANALYSIS
Grower : Report No:
24-136-0522
PIEDMONT ENVIROMENTAL ASSOCIATES Cust No:
06526
Date Printed:
05/17/2024
Date Received
05/15/2024
PO:
Farm: ANFIELD
Page :
1 of 1
Field: Sample ID: LOT 7
SOIL TEST RATINGS I
Calculated Cation
Low Medium Optimum
Exchange Capacity
Soil pH
1:1
5.2 I
1.4 meq/100g
Buffer pH
BPH
6.88 I
%Saturation
Phosphorus (P)
M3
2 ppm I�
% sat meq
Potassium (K)
M3
25 ppm
K 4.6 0.1
Calcium (Ca)
M3
106 ppm
Ca 37.9 0.5
Magnesium (Mg)
M3
34 ppm I
Mg 20.2 0.3
Sulfur (S)
M3
8 ppm I-
H 35.7 0.5
Boron (B)
M3
0.1 ppm
Na 0.9 0
Copper (Cu)
M3
0.3 ppm 1�1
Iron (Fe)
M3
152 ppm I
K/Mg Ratio: 0.22 ❑
Manganese (Mn)
M3
23 ppm
I Ca/Mg Ratio: 1.88 ❑
Zinc (Zn)
M3
0.8 ppm -I
Sodium (Na)
M3
3 ppm
Soluble Salts
Organic Matter
LOI
0.1 % I I
Estimated N Release
50 Ibs/acre
I Nitrate Nitrogen
l I ,
SOIL FERTILITY GU DELINES
Crop : Rec Units:
(Ibs) LIME (tons) N P205 K2O Mg S B Cu Mn Zn Fe
Crop : Rec Units:
l
Comments
M3 - Mehlich 3 BPH - Lime Index HIM - Humic Matter LOI - Loss On Ignition 1:1 - Water pH
Analysis prepared by: Waypoint Analytical Carolina, Inc.

1:0 PIEDMONT
ENVIRONMENTAL
ASSOC I A T E S, P. A.
November 6, 2024
Mr. Elton Luong, Engineer II
NCDENR-Non Discharge Unit; Engineering & Permits
512 N Salisbury St.
Raleigh, NC 27601
Re: Response to DWR Comment Letter of l l/l/24
WQ0045736 Wastewater Irrigation System -Chatham County, NC
212 Anfield, Lot 7, Apex, NC
Mr. Luong:
The purpose of this correspondence is to offer reply to your comments/additional
information requested in your letter of November 1, 2024. Responses below will be
given in the order of the items listed in your letter. The comments included in your letter
which pertain to aspects of the Soil Evaluation are as follows:
G. Soil Evaluation:
1. Pursuant to Form: SFRWWS 06-16 Item IV.5, the application is for a 5-bedroom
system while the Soil Evaluation notes a 4-bedroom system. Please verify the correct
bedroom count and revise as necessary.
This was a typographical error and has been corrected on the attached revised soil
report
2. See Comment H.1.
This has been addressed by the design engineer.
216 S. Swing Rd., Suite 1 Y. Greensboro, NC 27409 Y. 336-662-5487

If you have any further questions, please feel free to contact me directly
([e-mail] or 336-662-5487).
Sincerely,
satscf
0PHER
W -i j's
iY1284
O M �
G. Christopher Murray, MS
NC Licensed Soil Scientist
Piedmont Environmental Associates, PA