WQ0044549_More Information (Received)_20231113

J `H '7 R. HA N9 P.E.
PROFESSIONAL CONSULTING ENGINEER
2112 White Oak Road..... Raleigh, North Carolina.....27608
[e-mail]
October 15, 2023
Mr. Zachery J. Mega, Engineer III
NCDENR-Non Discharge Unit; Engineering & Permits
512 N Salisbury St.
Raleigh, NC 27601
Re: Response to DWR Comment Letter of 09/20/23
WQ0044549-SFR Wastewater Irrigation System -Chatham County, NC
1719 Farrington Road -Chatham County
Dear Mr. Mega:
This purpose of this correspondence is to offer reply to your comments/additional information requested
in your letter of September 20, 2023. Responses below will be given, more or less, in the order of the
items listed in your letter.
Items "A" & B": No Comments Provided, No Response needed.
Item "C" Application:
1. Comment: "...Items VI.2.b & VI.2.d —There are additional tanks (PT-347 and PT-484) listed in
these sections that are not mentioned anywhere else....."
Response: Application Form has been amended accordingly.
2. Item VIIA 2(a) Comment: "14 " is listed under the "Field" column but there is only one (1)
proposed irrigation site.
Response: The wastewater dispersal area is one (1) Field comprised of three (3) zones, so the
Application is revised to reflect one (1) Field.
Item VIIA 2(b) Comment: "Please revise the emitter wetted area to be for a single drip
emitter "
Response: The Application has been revised to reflect the calculated wetted area of each emitter/
Item "D" Property Ownership Documentation: No Comments Provided, No Response needed.
Item "E" Setback Waivers: Comment: "The setback waiver for 1727 Farrington Road needs to include
reduced setbacks from the irrigation site to property lines"
Response: A revised and executed setback waiver is included with this resubmittal.
Item "F" Soil Evaluation: Responses to DEQ Review Comments will be addressed by Soil &
Environmental Consultants, P.A, submitted herewith under separate cover.
Item "G" Engineering Plans:
1. Comment Sheet 2: "Please add the setback waiver for the off -site habitable residence located
at 1725 Farrington Road to the list on this sheet." Also, If this sheet will serve as the Site Map
for the proposed facility, please delineate the compliance and review boundaries per 15A

NCAC 02L .0107(i) and 02L .0108 and show soil mapping units for all irrigation sites. [1 SA
NCAC 02T .0604(d)]
Response: The appropriate plan sheets have been amended in accordance with the comments.
2. Comment Sheet 2A-: "The property line setback dimension shown for the irrigation site on
the north side should be based on the wetted area boundary and not the extent of the drip
lines. "
Response: For all intent and purposes the extent of the drip lines constitutes the wetted area.
The 20' sanctioned setback applies to any portion of the dispersal components within the
application area.
Comment: "On page 4 of the engineering plan set, the "Section Thru EZ Treat Pod " detail list it as a
Model 1200 EZ-Treat system. Please update this to reflect the currently designed Model 600 EZ-Treat
system. "
Response: The plans have been corrected in accordance with the comment.
3. Comment Sheet 3: "Please show the location of the air release valve(s) and the highest
elevation drip emitter per Instruction G of Form: SFRWWIS 06-16.
Response:. Valves for Air Releases, and Check Valves are shown in typical details on Sheet 6
and apply to each Supply & Return Manifolds whose locations are noted on Sheet 3. There
are no drains. Other miscellaneous zone control valves, meters, etc. are illustrated on Sheet 7.
The highest emitter elevation is shown on Sheet 3.
4. Comments Sheet 4: "The E-Z Treat section view specifies Model 1200 on the left and Model
600 on the right. Please revise. The plan view of the hydraulic unit specifies different
supply/return line sizes than on Sheet 3. The table of elevations lists the septic tank outlet pipe
("C') higher than the inlet pipe ("B'). "
Response: The comments offered have been addressed in the revised Plan Sheet 4
Item "H" Specifications: Comments: "1. Please revise the recirculation tank capacity in Section 10
on Page 2 to specify gallons. 2. The dose range and dose duration for a single pod system listed in
Section 17 on Page 3 do not match the 33 gallons per dose and 2.4-minute duration every 20 minutes
specified in the Engineering Calculations or the summary table on Page 7. Please verify and revise.
3. The dose volume and frequency listed in the summary table on Page 7 are for a system with four
(4) irrigation zones Please verify and revise.
Response. The three comments provided have been addressed through revisions made to
the Specifications.
Item "I" Engineering Calculations: Comments: 1. The media filter dosing calculation on Page 3
references a "minimum of 7 times ADF" per the Manufacturer's recommendations, however, four (4)
times the ADF is used in the equation that follows. Please clarify and revise, if needed. 2. The E-Z Treat
recirculation volume calculation on Page 4 specifies a pretreatment volume of 720 GPD, which does not
match the proposed Average Daily Flow (ADF) of 600 GPD. Please verify
and revise. 3. TDH Calculation — a. The number of laterals listed per irrigation zone does not match the
following pages and the Engineering Plans. Please revise. b. Please revise the irrigation pump
calculations to show no dosing/flow to Zone 4. There are only three (3) irrigation zones proposed for the
irrigation site. c. Per Item VII.4 of Form: SFRWWIS 06-16 and the existing contours in the Engineering
Plans, the highest zone elevation should be 269 feet.
Response: The comments provided have been addressed through revisions made to the
Engineering Calculations.
Item "J Site Map:
Project Number: 10HO1123 Page 2 of 3

Comment: ",,,please delineate the compliance and review boundaries per 1 SA NCAC 02L
.0107(1) and 02L .0108 and show soil mapping units for all irrigation sites. [I SA NCAC 02T
. 0604(d)J "
Response: Compliance and Review Boundaries have been referenced by notation, as well as
the Soil Mapping Series for the Site. This notation added to Sheet 2 of 8 of the Site Plans in
accordance with the Comment.
Item "K" Operation & Maintenance Plan:
1. Comment: "No Operation & Maintenance Plan has been provided. Please provide an
Operation & Maintenance Plan pursuant to 1 SA NCAC 02T .0604(f). "
Response: The Operation & Maintenance Schedule is illustrated and featured in the Plans on
the top -middle of Sheet 7 of 7.
Item "L" Operational Agreement:
Comment: "The submitted O&MAgreement was completed on an outdated version of the
form. Please resubmit using the latest version of the form found on the Non -Discharge
website. Please also add the assigned permit number (WQ0044549) to the form. ".
Response: The new Operational Agreement is attached, signed by the Permitee.
Item "M" Additional Documentation:
- Threatened or Endangered Aquatic Species: Comment: "A Federally -listed
species is documented within the project area. The North Carolina Natural Heritage Program
(NCNHP) recommends that the US Fish and Wildlife Service (USFWS) be contacted for further
guidance ".
- Response: The documentation provided by the Natural Heritage Program had
many species birds, plants, lizards, etc. listed as being present in the subject project area of
interest. However, the only "aquatic" species found present was a crayfish which did not
carry the distinction of being "threatened or endangered" in its "Status" column. This
project is not expected to impact any waterways, it is theorized that no impact to any
aquatic species will be affected.
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.
Regards,
� /�
(76p �,f le 1I Qle-#(0 r
John R. Harman, PE
Consulting Engineer (NC PE #9810)
Attachments: Soils Consultants Comment Reponses
Revised Plans, Calcs, & Specifications
Revised Application & New O&M Agreement Form
Revised Setback Waiver- 1727 Farrington Rd Granted to 1719 Farrington Rd
Project Number: 10//01/23 Page 3 of 3

State of North Carolina
DWR Department of Environmental Quality
Division of Water Resources
Division of Water Resources
15A NCAC 02T .0600 — SINGLE-FAMILY RESIDENCE WASTEWATER IRRIGATION SYSTEMS
FORM: SFRWWIS 06-16
I. APPLICANT INFORMATION:
1. Applicant's name as appears on deed, contract or lease agreement: Blacksmith Ranch. LLC
2. Applicant type: ❑ Individual ® Corporation ❑ General Partnership
3. Signature authority's name: William Foy per 15A NCAC 02T .0I O6ib}Title: Registered Agent
4. Applicant's mailing address: 17I9 Farrington Road
City: Apex State: NC Zip: 27523-
5. Applicant's contact information:
Telephone number: [phone] Fax number: (_) - Email Address: beaLixbpm(rr..gmail.com
II. FACILITY INFORMATION:
1. Facility name: Wastewater Treatment & Surface Drip Irrigation Disposal System fora 5 Bedrrom Residence-1719 Farrinj4ton
Rd, Chatham Co., NC
2. Facility status: ❑ Existing or ® Proposed
3. Facility's physical address: 1719 Farrington Road
City: Apex State: NC Zip: 27523- County: Chatham
4. Wastewater Treatment Facility Coordinates: Latitude: 35' 45' 35" Longitude: -79' 00' 39"
Provide the following latitude and longitude coordinate determination information:
Datum: NAD83 Level of accuracy: Nearest second Method of measurement: Digital or raw 12hoto extraction
5. USGS Map Name: Farrington 1993
III. CONSULTANT INFORMATION:
1. Engineer's name: John R. Harman, PE License Number: NCPE 9810 Firm: Consulting Engineer
Engineer's mailing address: 21 12 White Oak Rd
City: Raleijah State: NC Zip: 27608-
Telephone number: [phone] Fax number: (_) - Email Address: jackharman53(d&aiaiLconi
2. Soil Scientist's name: Richard A Pontello License Number: 1232 Firm: Soil & Environmental Consultants.. PA
Soil Scientist's mailing address: 8412 Falls of Neuse Rd
City: Raleigh State: NC Zip: 27615-
Telephone number: [phone] Fax number: (_) - Email Address: ryontello(d.sandec.com
IV. GENERAL REQUIREMENTS — I5A NCAC 02T .0I00:
1. Application type: ® New ❑ Major Modification ❑ Minor Modification
If a modification, provide the existing permit number: WQ00 and most recent issuance date:
2. Application fee: $60
3. Describe the origin of the wastewater and provide a brief project description: Domestic Origin: Septic and Advanced
Pretreatment via Recirculating Media Filter, & Storage prior to Surface Drip Application
4. Wastewater flow: 600 GPD
FORM: SFRWWIS 06-16 Page I of

State of North Carolina
DWR Department of Environmental Quality
Division of Water Resources
Division of Water Resources
15A NCAC 02T .0600 — SINGLE-FAMILY RESIDENCE WASTEWATER IRRIGATION SYSTEMS
FORM: SFRWWIS 06-16
FORM: SFRWWIS 06-16 Page 2 of

IV. GENERAL REQUIREMENTS — ISA NCAC 02T .0100 (CONTINUED):
5. Using 15A NCAC" 02T .01 14, explain how the total wastewater flow was determined:
Establishment Type
Flow Basis
Flow
Per Unit
Number
of Units
Flow
Five Bedroom Single Family Residence
gal/Day
120
5
600 GPD
gal/
GPD
Total
600 GPD
6. Per 15A NCAC 02T .01051c) , if the project includes any stream or wetland crossings, what is the status of the following
applicable permits/certifications?
Permit/Certification
Date
Droved ate
Permit/Certification No.
Agency Reviewer
Submitted
A
Nationwide 12 or 404
Wetlands 401
7. What is the nearest 100-year flood plain elevation to the facility? 237.8 feet mean sea level. Source: FRIS Panel 9782
Are any treatment, storage or irrigation systems located within the 100-year flood plain? ❑ Yes or ® No
If yes, has documentation of compliance with Article 21 Part 6 of Chapter 143 of the G.S. been provided? ❑ Yes or ❑ No
V. DESIGN CRITERIA AND SETBACKS— 15A NCAC 02T .0605 & .0606:
1. Provide the estimated influent and designed effluent concentrations from the engineering calculations to verify conformance
with 15A NCAC 02T .0605 b for the following parameters:
Estimated Influent
Designed Effluent
Minimum Required
Parameter
Concentration
Concentration
Degree of Treatment
(monthly averse
Prior to Stora e
Biochemical Oxygen Demand
350 mg/1
<10 mg/1
1530 mg/l
BODS)
Total Suspended Solids (TSS)
350 mg/1
<10 mg/l
<_30 mg/1
Ammonia Nitrogen (NH3-N)
30 mg/l
<10 mg/I
<_15 mg/1
Fecal Coliforms
<200 per 100 ml
:!�200 colonies/100 ml
2. Per 15A NCAC 02T .0605(c), is the effluent placed directly in contact with GA classified groundwater? ❑ Yes or ® No
If yes, have predictive calculations demonstrating such placement will not contravene GA groundwater standards been
provided? ❑ Yes or ❑ No
3. Per 15A NCAC 02T _0605(d}, are any of the treatment or storage units excavated into bedrock? ❑ Yes or ® No
If yes, has a 10 millimeter synthetic liner been provided? ❑ Yes (Plan Sheet: & Specification Page: ) or ❑ No
4. In accordance with 15A NCAC 02T .0605(c ), are any earthen treatment and storage facilities provided? ❑ Yes or ® No
5. In accordance with 15A NCAC 02T .0605[ 1), have any by-pass or overflow lines been provided? ❑ Yes or ® No
6. If any treatment, storage or irrigation systems are located within the 100-year flood plain, in accordance with 15A NCAC 02T
.0605(a), which systems are affected and what measures being taken to protect them against flooding? N/A
7. In accordance with 15A NCAC 02T .0605{h), has an operation and maintenance plan been submitted? ® Yes or ❑ No
8. In accordance with 15A NCAC 02T .06050), how will restricted access to the irrigation system be provided? 2-Strand Fence
Are all treatment units and control panels locked to prevent entry? ® Yes or ❑ No
9. In accordance with 15A NCAC 02T .0605ti1, do the designed irrigation loading rates (see Application Item VIIA.) exceed the
soil scientist recommended loading rates (see Application Item VII.3.)? ❑ Yes or ® No
10. In accordance with I SA NCAC 02T .0605W, does the septic tank design adhere to 15A NCAC 18A .1900? ® Yes or ❑ No
FORM: SFRWWIS 06-16 Page 3 of 6

V. DESIGN CRITERIA AND SETBACKS— 15A NCAC 02T .0605 & .0606 (CONTINUED):
11. In accordance with 15 A NCAC 02T .0605[ ] ), what is the specified method of disinfection? Ultraviolet
If chlorine, specify contact detention time provided: minutes and where contact time occurs:
If UV, specify the number of banks: 1, total lamps: 1 and maximum flow capacity: 10 GPM.
12. In accordance with I.5A NCAC 02T .0605(m), has a minimum of five days of storage based on average daily flow between the
pump off float and inlet invert pipe been provided? ® Yes or ❑ No
13. In accordance with 15A NCAC 02T .0605(n ), have all tanks containing pumps been provided with audible and visual alarms
that are external to any structure? ® Yes (Plan Sheet: 4 of 8 & Specification Page: ) or ❑ No
14. In accordance with 15A NCAC 02T .0605 0 , has a precipitation or soil moisture sensor been provided?
® Yes (Plan Sheet: 4 of 8 & Specification Page: ) or ❑ No
15. In accordance with 15A NCAC 02T _0605(n), has a minimum of 18 inches of vertical separation between the apparent seasonal
high water table (SHWT) and the ground surface been provided? ® Yes or ❑ No
16. In accordance with 1_5A NCAC_ 02T .0605(q), has a minimum of 12 inches of vertical separation between any perched seasonal
high water table (SHWT) and the ground surface been provided? ® Yes or ❑ No
17. In accordance with 15A NCAC 02717 .0605tr), does the designed annual loading rate exceed 50 inches? ❑ Yes or ® No
18. Does the project comply with all setbacks found in the river basin rules (l5A NCAC 02B .0200]? ® Yes or ❑ No
If no, list non -compliant setbacks:
19. Per 15A NCAC 02T .0606, verify setback compliance by providing the minimum field observed distance (ft) from the facility's
irrigation system and treatment/storage units to each listed setback parameter (Note: Distances greater than 500 feet shall be
marked N/A):
Setback Parameter
Irrigation
System
Treatment /
Storage Unit
Any habitable residence or place of assembly under separate ownership or not to be
maintained as art of the ro'ect site
+-871*
Waivered
+/- 200'
Any habitable residence or place of assembly owned by the Permittee to be maintained as
art of the project site
+/- 40
Any private or public water supply source
+/-100'
+/- 105'
Surface waters (streams — intermittent and perennial, perennial waterbodies, and wetlands)
N/A
N/A
Groundwater lowering ditches (where the bottom of the ditch intersects the SHWT)
N/A
Subsurface groundwater lowering drainage systems
N/A
Surface water diversions (ephemeral streams, waterways, ditches)
+/- 25'
Any well with exception of monitoring wells
> 100'
> 100,
Any property line
+/- 35'*
Waivered
+/- 20'
Top of slope of embankments or cuts of two feet or more in vertical height
N/A
Any water line from a disposal system
>40'
Any swimming pool
N/A
Public right of way
20'*
Waivered
Nitrification field
>150'
Any building foundation or basement
>40'
20. Are any setback waivers proposed for this facility? ® Yes or ❑ No
If yes, in accordance with 15A NCAC: 02T .06U6(c), submit the appropriate setback waivers (FORM: NDWS�% ) that have
been notarized, signed by all parties involved and recorded with the County Register of Deeds. Waivers involving the
compliance boundary shall be in accordance with 15A NCAC 02L .0107.
FORM: SFRWWIS 06-16 Page 4 of

VI. WASTEWATER TREATMENT & STORAGE FACILITY DESIGN:
1. Type of treatment system: Septic Tank / EZ Treat
2. Provide the requested information for each treatment/storage unit and its associated mechanical equipment:
a. PRELIMINARY / PRIMARY TREATMENT (i.e., physical removal operations):
No. of
Manufacturer or
Dimensions (ft) /
Volume
Plan Sheet
Specification
Treatment Unit
Units
Material
Spacings (in)
al)
Reference
Reference
Septic Tank
1
Shoaf Pr3eC0ast STB-
10.5'x5.5'x5.83'
1500
4 of 8
Select
Other
b. SECONDARY TREATMENT (i.e., physical, biological and recirculation processes):
No. of
Manufacturer or
Vo lume
Plan Sheet Specification
Treatment Unit
Units
Material
Dimensions (ft)
I
I (al)
Reference Reference
EZ Treat
1
EZ Treat 600
+/- Tx 4.5
NA
4 of 8
Recirculation Tank
Shoaf Precast PT-
12. 5' x6. 5' x5. 5 d'
2500
4 of 8
2103
Other
c. DISINFECTION:
No. of
Manufacturer or
Volume
Plan Sheet
Specification
Treatment Unit
Units
Material
Dimensions (ft)
al
Reference
Reference
Ultraviolet
1
EZ Treat
Model UV- 101
10 GPM
4 of 8
Select
d. PUMP/STORAGE TANK:
Manufacturer or
No. of
Total
Effective
Effective
Plan Sheet Specification
Material
Units
Dimensions (ft)
Volume
Volume
Storage
Reference Reference
al
al
(days)
Shoaf PreCast
1
13. 2' x6. 3' x7. 0' d
3500
3596
>5
4 of 8
Avail for Emerg
Model PT-2105
Storage
e. PUMPS:
No. of
Manufacturer /
Capacity
Plan Sheet
Specification
Location
Pumps
Purpose
Type
Reference
Reference
GPM
TDH
2500 Gal Recirc
1
Dose EZ Treat Pod
StatRite Step20
20
100'
5 of 8
Goulds
3500 Field Dose
1
Field Dosing
PUTB2510122
,Z2-
133'
5 of 8
Tank
W
2
f. BLOWERS:
Location
No. of
Blowers
Units Served
Manufacturer /
Type
Capacity
(CFM)
Plan Sheet
Reference
Specification
Reference
g. MIXERS:
FORM: SFRWWIS 06-16 Page 5 of 6

Location
No. of
Mixers
Units Served
Manufacturer /
Type
Power
(hp)
Plan Sheet
Reference
Specification
Reference
FORM: SFRWWIS 06-16 Page 6 of 6

VII. IRRIGATION SYSTEM DESIGN:
1. Are there any artificial drainage or water movement structures within 200 feet of the irrigation area? ❑ Yes or ® No
If yes, please explain if the Soil Evaluation addresses artificial structures and indicate if these structures are to be maintained
or modified:
2. What is the proposed cover crop? Fescue
3. Soil Evaluation recommendations:
Soil Series
Fields within Soil Area
Minimum Observed
Depth to SHWT
fit
Recommended
Loading Rate
in/hr)
Recommended
Loading Rate
inl. r
Creedmoor
100%
0.5'
<0.5"/Hr
<18.18"/Yr
4. Irrigation System Information (Note — this table may be expanded for additional fields):
Field
Area
(acres)
Dominant
Soil Series
Designed
Rate
(in/hr)
Designed
Rate
(in/yr)
Latitude
(DMS)
1
Longitude
(DMS)
Waterbody
Stream Index
No.I
Classification
1
0.46 Ac
Creedmoor
0.13"/hr
17.7"/Yr
35°45' 35"
-79° 00' 39"
N/A
N/A
All 3 zones in 1 Field
° ' "
- ° ' "
O I 11
O I II
O I II
O I 11
O I II
O ! II
o i /r
o r rr
Total
0.46
Provide the following latitude and longitude coordinate determination information:
Datum: NAD83 Level of accuracy: Nearest I.0 seconds Method of measurement:
Map interpretation by extraction
'- For assistance determining the waterbody stream index number and its associated classification, instructions may be
downloaded at: hM s_.//nedenr.s3.amazonaws.com/s3fs-
publiclW ater%204ua1 ity/Aqui fcr%20 Protecti t)nfLAU/Agreements/ WSCAR/fl2008-13, pdf.
Spray Irrigation Design Elements
Drip Irrigation Design Elements
Nozzle wetted diameter:
ft
Emitter wetted area:
7.68 ftZ
Nozzle wetted area:
ftz
Distance between laterals:
3.82 ft
Nozzle capacity:
GPM
Distance between emitters:
2 ft
Nozzle manufacturer/model:
/
Emitter capacity:
0.61 GPH
Elevation of highest nozzle:
ft
Emitter manufacturer/model:
Netafim / BioRam
Specification Reference:
Elevation of highest emitter:
269 ft
Specification Reference:
Sheet 3 of 8
FORM: SFRWWIS 06-16 Page 7 of

Professional Engineer's Certification:
John R. Harman, PE attest that this application for
(Professional Engineer's name from Application Item III L)
Wastewater Treatment & Surface Drip Irrigation Disposal System for a 5 Bedroom Residence-1719
Farrington Rd, ChathamCo-, NC
(Facility name from Application Item II.1.)
has been reviewed by me and is accurate, complete and consistent with the information supplied in the plans, specifications,
engineering calculations. and all other supporting documentation to the best of my knowledge. I further attest that to the best of my
knowledge the proposed design has been prepared in accordance: with this application package and its instructions, as well as all
applicable regulations and statutes. Although other professionals may have developed certain portions of this submittal package,
inclusion of these materials under my signature and seal signifies that I have reviewed this material and have judged it to be consistent
with the proposed design.
Note: In accordance with General Statutes 143-215.6A and 143-215.613, an), person who knowingly makes any false statement,
representation, or certification in an_v application package shall be guilty of a Class 2 misdemeanor; which may include a fine not to
exceed $10,000, as well as civil penalties up to $25,000 per violation. -�
North Carolina Professional Lnar�,°seal, signature, and date:
Applicant's Certification per IS.A NCAC 02T .©106{h}:
William Foy
12-.0
4 � II M MII to 1
�. N
aR0%
C+ems
' SEAL s
Oslo
Rai:
�wM R HARa',r++r�
that this application for
(Signature Authority's name & title from Application Item 1.3.)
Wastewater Treatment & Surface Drip Irrigation Disposal System for a 5 Bedroom Residence-1719
Farrington Rd; Chatham Co., NC
(Facility name from Application Item 11.1.)
has been reviewed by me and is accurate and complete to the best of my knowledge. I understand that any discharge of wastewater
from this non -discharge system to surface waters or the land will result in an immediate enforcement action that may include civil
penalties, injunctive relief, and/or criminal prosecution. I will make no claim against the Division of Water Resources should a
condition of this permit be violated. I also understand that if all required parts of this application package are not completed and that
if all required supporting information and attachments are not included, this application package will be returned to me as incomplete.
I further certify that the applicant or any affiliate has not been convicted of an environmental crime, has not abandoned a wastewater
facility without proper closure, does not have an outstanding civil penalty where all appeals, have hi -en exhawar-H nr abandoned, are
compliant with any active compliance schedule, and do not have any overdue annual fees per 15A NCAC 02T .0105(e).
Note: In accordance wirh General Statutes 143-215.6A and 143-215.6I3, any person who knowingly makes any false statement,
representation, or cer-t, rcati�n rn.a.ny apply on pdckaee shall be guilty of a Class 2 nriidcmcaX/Y
'MicZZ
include a fine not to
exceed $10�000 as. ei1 as UTvyl' Mies up !c+ $?5.0 Q per violation.
5tanahr Date �� • +�
FORM: SFRWWIS 06-16 Page 7 of 6

Environmental Consultants, PA
8412 FaRs of Neuse Road, Suite 104, Raleigh, NC 27615 • P'
sandec.c-
Zachary J. Mega
Water Quality Regional Operatior-
Division of Water Resources
Department of Environment. I
Re: Additional Information Req
Application No. WQ004454S
Dear Mr. Mega:
[phone] • Fax: [phone]
Zovember 3, 2023
Job # 13609.S2
The purpose of this letter is to respond tc by
your office on September 20, 2023.
Item F. Soil Evaluation:
1. Updated attached Report includes stat, project site has not changed
since the original evaluation.
2. SHWT is perched, discussed in Report, and shown on soil boring descriptions.
3. Updated Appendix 2 title block.
4. Updated Appendix 5 Geometric Summary Data included in Report
5. a. Updated soil boring description sheets.
b. Updated Ksat measurement data sheets.
c. The measured in -situ Ksat values for this lot fall into the SFR-C group (an
allowable irrigation range of 13.0-19.5 inches per year). Three Ksat data nests
were used to determine the recommended Ksat value. The geometric mean Ksat
value used by S&EC is 0.014 in/hr (BC horizon). These measured Ksat values,
along with the proposed TS-II Pretreatment Surface Drip field landscape position,
and 6 inch sandy loam cap across the drip field, justify a drainage coefficient of
28% of the measured Ksat in the most restrictive soil horizon, resulting in an
annual loading rate of 18.18 inches per year. [Ref. "EPA Process Design Manual -
Land Treatment of Municipal Wastewater Effluents, 1984, revised 2006"1 The

Drainage Coefficient of 0.04 to 0.1, or 4% to 10% of the Ksat is historical relic of
the early days of EPA (1984). This was the norm when the permeability of soils
were obtained from tabular data in USDA and NCRS Soil Survey information.
However, as carried over to the EPA Process Manual revised in 2006 which states
"To account for required intermittent applications (reaeration), the variability of
the actual soil permeability within a site, and the potential reduction with time, a
small percentage of the vertical permeability is used as the design percolation
rate. This small percentage ranges from 4 to 10 percent of the saturated vertical
permeability as shown in Figure 3-5." And goes on to state, "Design rates based
on field measurements (Section 3.8) may be calculated using different
percentages."
The guidance would seem to indicate that that due to the expense of conducting
multiple Ksat measurement locations and when a singular measurement is
obtained, or in the case of using Soil Survey broad scale "book values"
measurements as typical should have its assumed or measured Ksat significantly
reduced due to the possible variations of soil types and characteristics within
their extent of the site. However, it also indicates that based upon multiple
"nested" measurements where a seametric mean is used that the design rates
may be calculated using different Drainage Coefficient percentages.
It has been recognized that the minimum requirements of Organic Loading for
surface irrigation systems is the achievement of Secondary level of treatment
with disinfection (BOD<30 mg/l; TSS<30mg/1) and this may be compatible with
the 4% to 10% limitation of the Ksats to be used. However, since modern day
treatment levels are expected to be <10mg/I for each using media filters with
denitrification processes the concerns of pore clogging and algae build up are
greatly diminished. It is not thought unreasonable that since the organic
constituents are reduced by two thirds from the previously applied standard
levels of effluent, a three fold multiplier of the 10% Drainage Coefficient (DC) can
be properly applied to the Geometric Mean of the Ksats measurement value.
Therefore, a Minimum DC of 0.33, or 33% can be the beginning point_ for
evaluating the Drainage Coefficient for the various Soil Group determination by
the Ksat Geometric Mean.
The NCDENR DWQ SFR Annual Hydraulic Loading Worksheet version 091208
states in its Instructions "Values for this drainage coefficient shall not exceed 1.0
(100%). Obviously, there would be no point in irrigating a soil that is saturated at
100% which would keep it in a perpetually saturated condition. In the "Irrigation
Area Calculation" tab of the DWR worksheet, the guidance of a range for the
Page 2 of 3

"Maximum Annual Loading Rate" is given by the Geometric Mean of the Ksat
Range (which is the determinate of the SFR Loading Rate Group), and the Loading
Rate Group specifies a Low to High range of the inches/Year Application Rate for
the SFR Soil Group. As long as the Annual Loading Rate is not exceeded, or at a
maximum is met relative to its corresponding and comparative Geometric Mean
within the Ksat Range, a designer -chosen numeric variable of the Drainage
Coefficient can be applied as a entry, and the intent of the design approach is
achieved. A suggested upper limit of the Drainage Coefficient of 0.5 (or 50%)
can be justified to provide a Factor of Safety of 2, which is usually accepted by
design professionals as satisfactory.
d. Attached Report removes adjacent lot information.
Soil & Environmental Consultants, PA is pleased to be of service in this matter and we look
forward to assisting in the successful completion of the project. Please feel free to call with
any questions or comments.
Sincerely,
Soil & Environmental Consultants- PA
SOIL
1232
�FAIORTH Gl'¢ r'
Ricky Pontello
NC Licensed Soil Scientist #1232
Page 3 of 3

Environmental Consultants,
8412 Falls of Neuse Road, Suite 104, Raleigh, NC 27615 • Phone: [phone]
sandec.com
Revised October 4, 2023
Beaux Foy December 16, 2022
1719 Farrington Road S&EC Project #13609.S2
Apex, NC 27523
Soils Report for a Proposed Residential TS-II Surface Drip with Fill Wastewater System
Project Name: 1719 Farrington Road, Lot 2
Location: 1719 Farrington Road, Chatham County, NC
Soil & Environmental Consultants, PA performed a detailed soil/site evaluation on the above
referenced tract to determine onsite suitability for a subsurface or surface wastewater system per
your request. This property does not contain enough suitable soils to support a 5-bedroom
subsurface septic system. Therefore, a TS-II pretreatment surface drip septic system with a
minimum of 6 inches of NCDWR approved fill is proposed. Soil & Environmental Consultants,
PA (S&EC) has determined the location and characteristics of a site that is potentially useable for
a pretreatment surface drip irrigation wastewater system with approved fill. This report details
S&EC findings and provides the necessary soil/site information needed for a drip irrigation
system to be designed by a professional engineer. This fieldwork was completed in Fall and
Winter of 2018, with a follow up site meeting and field review in November 2022. Site
conditions were the same at the November 2022 site meeting as they were when the site was
originally evaluated in 2018.
The potentially useable soil area is shown on the accompanying AutoCAD map (Appendix 2).
The map also shows the locations where measurements of saturated hydraulic conductivity (Ksat)
and the deep soil borings were performed. The general area proposed for the system is 20,688
square feet. This plan assumes that buffer wavier reductions are obtained for some of the
property line and/or residence/building setbacks. The proposed pretreatment surface drip with fill
meets all the remaining setbacks required for surface drip systems by the state of North Carolina.
This site is located in the Triassic Basin geologic unit of Chatham County. Appendix 1 contains
the locations and limited field data of auger borings that were performed to determine soil map
units that were present on the site. Upland soils on the site are generally similar to the Creedmoor
soil series. These soils have expansive clay mineralogy and indications of soil wetness present in
the wavy boundaries of the subsurface horizons. The Bt subsoil of these soils are clayey and have
a yellowish brown color. There are wavy boundaries between the Bt, BC, and C horizons on this
site. The Creedmoor soils are generally unsuitable for subsurface septic systems. However, the
soil characteristics of the surface horizons with the addition of approved fill offer the opportunity
for a pretreatment surface drip septic system. In essence, the permeability of the subsoil is the
limiting factor in the design of a pretreatment surface drip system.
The soil condition of the proposed drip area is also described in the accompanying Ksat location
soil profile descriptions (Appendix 3). The upper boundaries of the perched water table varied

across the site. The landscape position for the proposed pretreatment surface drip system with fill
is on top of a ridge. Based on the Ksat measurements, the attached water balance (Appendix 4)
shows that the site can hydraulically assimilate 18.18 inches of irrigation water per year.
Therefore, a 5-bedroom house (600 gallons per day design flow) would require approximately
19,322 square feet of wetted area for surface drip irrigation application. The maximum
instantaneous application rate should not exceed 0.5 inches per hour. Measurements of saturated
hydraulic conductivity (Ksat) were conducted within the most restrictive soil horizon in the
proposed wetted area, which was the BC soil horizon. Overall geometric mean Ksat data is
shown in Appendix 5a while Ksat field data is shown in Appendix 5b of this report.
In regard to the NCDWR approved fill, a minimum of 6 inches of fill is required to be placed on
top of the existing soil surface so the vertical separation to the perched SHWT is met. The fill
material must have a soil texture of sandy loam in order to establish vegetative cover and must
contain no more than 10% by volume fibrous organics, or other debris. The fill material and the
existing soil shall be mixed to a depth of six inches below their interface. All heavy vegetative
cover and organic litter will be removed from the existing soil surface before fill material is
added. The side slope of the fill shall not exceed a rise to run ratio of 1:4. The fill berm will be
constructed so it sheds surface water and will be stabilized with a vegetative cover.
Soils within the proposed drip 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 drip area. The composite sample for this surface drip area is
labeled "SS-L1". The standard soil fertility analysis was completed by Waypoint Analytical, Inc
on February 20, 2019. Soil sample results and fertility recommendations are included in "Soil
Analysis Report" provided by A&L (Appendix 6).
Site disturbance should be absolutely minimized on the area to be used for the drip application of
wastewater. Site disturbance could create unsuitable conditions for a drip irrigation system. A
permanent vegetative cover should be immediately established and maintained over the entire
application field after installation.
Calculations
1. Maximum Instantaneous Application Rate (in/hr)
Utilizing Table 1 (see attached) for typical ranges of soil infiltration rates. The
Creedmoor soils fall into the Sandy Loam class in the 0-3% slope range. This infiltration
rate is 0.5 to 1.0 in/hr. The recommended rate is therefore 0.5 in/hr.
2. Water Balance
A water balance was developed for the proposed drip irrigation field by
balancing water losses and gains:
Evapotranspiration + Drainage = Precipitation + Irrigation
A. Potential Evapotranspiration (PET)
PET was calculated using the Thomwaite Method as outlined in the water
balance spreadsheet provided by NC DWR.

B. Drainage (DR)
The drainage term was determined utilizing guidance set forth by a
committee within DWR (The Single Family Residence Workgroup). Based on
discussions within this committee, 4 classes of soils are proposed based on in -situ
Ksat values. The measured values for this lot fall into the SFR-C group (an
allowable irrigation range of 13.0-19.5 inches per year). A drainage coefficient of
28% of the measured Ksat in the most restrictive soil horizon was therefore
utilized to yield an annual loading rate of 18.18 inches per year. Three Ksat data
nests were used to determine the recommended Ksat value. Each of these data
points were performed within the BC horizons of the Creedmoor soils, since these
were clearly the most restrictive horizons. The geometric mean Ksat value used
by S&EC is 0.014 in/hr (Bt horizon in the Creedmoor).
C. Precipitation (PPT)
Average monthly precipitation rates were obtained from the NC Climate Division
4: Central Piedmont Area, determined over a thirty year period (see water balance
data sheet). Monthly precipitation values from the 80th percentile were used in
the water balance. Input for this figure is based on 31, 30, and 28 day months.
Specifications:
Assumed Design flow - 600 gal/day
Allowable Irrigation Rate — 0.35 in/week
Total minimum area needed for spray field — 19,322 sf (wetted
area) Maximum Instantaneous Application Rate- 0.5 in/hr
The area required is the minimum wetted area needed for treated wastewater application.
This report discusses the general location of potentially useable soils for on -site surface
wastewater disposal and, of course, does not constitute or imply any approval or permit as needed
by the client from the State. S&EC is a professional consulting firm that specializes in the
delineation of soil areas for wastewater disposal. As a professional consulting firm, S&EC is
hired for its professional opinion in these matters. The rules governing wastewater treatment
(interpreted and governed by local and state agencies) are evolving constantly, and in many cases,
affected by the opinions of individuals employed by these governing agencies. Because of this,
S&EC cannot guarantee that areas delineated and/or systems designed will be permitted by the
governing agencies. As always, S&EC recommends that anyone making financial commitments
on a tract be fully aware of individual permit requirements on that tract prior to final action.
An individual septic system permit will be required 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. A letter of
denial regarding subsurface septic systems from the county health department will also be
required by the state as part of the application for a surface drip system for each septic area.

if you have any questions or require additional information please contact us at [phone].
Sincerely, rr�/yrjg f
U C' 4�0 A. P0� fL�
12332
Ricky Pontello `®
NC Licensed Soil Scientist
List of Appendices
Appendix 1. — NC setbacks for surface drip and spray irrigation septic systems
Appendix 2. — AutoCAD Soils/site plan
Appendix 3. — Soil Profile Descriptions at Ksat Locations
Appendix 4. — Water Budget Calculations
Appendix 5. — Overall Geometric Mean Ksat Data
Appendix 6. — Standard Fertility Analysis (As provided by Waypoint Analytical, Inc.)

SETBACKS FOR SURFACE DRIP AND SPRAY IRRIGATION
DRIP SPRAY PARAMETER
10, 100, INTERCEPTOR DRAINS, AND
SURFACE WATER DIVERSIONS
(UPSLOPE FROM SYSTEM).
15' 200' RESIDENCE FOUNDATIONBASEMENT
15' 15' 2' CUT EMBANKMENT.
25' 100, INTERCEPTOR DRAINS, SURFACE
WATER DIVERSIONS, AND GROUND
WATER LOWERING/SURFACE DRAINAGE
DITCHES (DOWNSLOPE FROM SYSTEM).
50' 50' PUBLIC RIGHT-OF-WAY SURFACE DISPOSAL
50' 150' ANY PROPERTY LINE
100, 400' PLACE OF PUBLIC ASSEMBLY OR
HABITABLE RESIDNECE OFF PROPERTY.
100, 100, ANY SWIMMING POOL, ANY WELL, ANY
PUBLIC OR PRIVATE WATER SUPPLY, AND
ANY LAKE OR IMPOUNDMENT.
• ANY OR ALL OF THESE SETBACKS MAY BE VARIED IF THE
ADJACENT PROPERTY OWNERS SIGN A WAIVER/PERMISSION
NOTICE.

Table 1
Typical ranges of soil infiltration rate by soil texture and slope.
Basic Infiltration Rate (in/hr)*
Slope
Texture
----------------------------------------
0-3%
3-9%
9+%
sands
1.0+ 0.7+
0.5+
loamy sands
0.7-1.5
0.5-1.0
0.4-0.7
sandy loams and fine sandy loams
0.5-1.0
0.4-0.7
0.3-0.5
very fine sandy loam and silt loam
0.3-0.7
0.2-0.5
0.15-0.3
sandy clay loam and silty clay loam
0.2-0.4
0.15-0.25
0.1-0.15
clay and silty clay
0.1-0.2
0.1-0.15
< 0.1
Source: Sprinkler Irrigation Association, Sprinkler Irrigation (1969)
* For good vegetative cover, these rates may be 25-50% greater. For poor surface
conditions, rates may be as much as 50% less.

Farrington Road Profile Descriptions at Ksat Locations
Site: Lot 2
Location: Site 1
County: Chatham County
Current Vegetation: Grass
�
N
Z
d
O
U
L1
g
2 g
g
Taxanomic Classification (Family Level):
Fine, mixed, semiactive, thermic Aquic Hapludults
Series Name: Creedmoor
Landscape Position: Sideslope
% Slope: 0-3%
Conducted By: CC
Date: 10/17/2018
w
u G w
Q U) C] O
D O p�j O YS L p
Ap
0-3
7.5 YR 2.5/2
-
-
-
-
dry
I SUSL
Wk.
Med.
SBK
I VFR
NS
NP
E
3-6
7.5 YR 5/4
-
-
-
-
dry
SL
Wk.
Med.
SBK
FR
NS
NP
Bt
6-24
10 YR 5/6
10 YR 6/2. 2.5 YR 414
Common
Small
D,C
dry
C
Str.
Med.
SBK
VFI
VS
VP
Bt
24-30
10 YR 6/2
10 YR 5/6. 2.5 YR 4/4, 10 YR 6/a
AbundantMed.
D,C
d
C
Str.
Med.
SBK
VFI
VS
VP
BC
30-37
10 YR 5/6, 10 YR 6/2
10 YR 5/6, 2.5 YR 414, 10 YR 6/8
AbundantMed.
D,C
d
SCL
Wk.
Med.
SBK
FI
S
SP
C1
37-42
10 YR 5/6. 10 YR 6/2
10 YR 5/6, 2.5 YR 4/4, 10 YR 6/8
bundan
Med.
D,C
d
SUL
SIs.
Mass
FR
SS
SP
C2
42-84
5 YR 7/1. 5YR 6/1
7.5 YR 6/6
bundan
Med.
C
I dry
I SL
SIs.
I
Mass
FR
NS
NP
Restrictive Horizon:
Type Depth Thickness
Exp 6"
SHWT 6"
Seasonal High Water Table:
Depth Type (apparent/perched):
6" perched
Drainage Class:
SPD

Farrington Road Profile Descriptions at Ksat Locations
Site: Lot 2
Location: Site 2
County: Chatham County
Current Vegetation: Grass
N
0
O
C
y
O
O
w
25
L
O 01
{6
O
Taxanomic Classification (Family Level):
Fine, mixed, semiactive, thermic Aquic Hapludults
Series Name: Creedmoor
Landscape Position: Sideslope
% Slope: 0-3%
Conducted By: CC
Date: 10/17/2018
V
7 O C
y
w
i
r
w
itl1
a rn
O m
O Q 0
C NN
C � I.f�
2
3
Q
�
�
7
w
�
;
7
M
7
..r^^
of
3
.^
N
D
Ap
1 0-3
7.5 YR 2.5/2
-
-
-
-
dry
SUSL
Wk.
Med,
SBK
VFR
NS
NP
E
3-7
7.5 YR 5/4
-
-
-
-
d
SL
Wk.
Med.
SBK
FR
NS
NP
Bt
7-14
10YR6/4
10YR6/2,10YR7/8, 25YR4/8
Common
Small
D,C
dry
C
Str.
Med.
SBK
VFI
VS
VP
Btg
14-30
10 YR 6/2
10YR7/8,25YR4/8
Abundant
Small
D,C
dry
C
Str.
Med.
SBK
VFI
VS
VP
BCg
30-37
10 YR 7/2
10 YR 7/8. 2.5 YR 4/8
Abundant
Small
D,C
dry
SCL/C
Mod.
Med.
SBK
FI
S
VP
Cg
37-48
10 YR 7/2
10 YR 7/8, 2.5 YR 418
bundan
Small
D,C
d
SiL
Sls.
-
SBK
FR
SS
NP
C1
48-70
5 YR 5/4
5 YR 8/1. 2.5 YR 3/3
Abundant
Small
C
d
SL
Sls.
-
Mass
VFR
NS
SP
C2
70-75
5 YR 3/2
5 YR 6/2, 7.5 YR 5/6, 5 YR 8/1Small
fAbundant
C
dry
SiL/SL
Sls.
-
Mass
VFR
NS
NP
AR
75
Restrictive Horizon:
Type Depth Thickness
Exp 7"
SHWT 7"
Seasonal Hi-gh Water Table:
Depth Type (apparent/perched):
T' perched
Drainage Class:
SPD

Farrington Road Profile Descriptions at Ksat Locations
Site: Lot 2
Location: Site 3
County: Chatham County
Current Vegetation: Grass
tl!
H
G
G
L7
d
O
=
N
p
t�II
O
x o
Taxanomic Classification (Family Level):
Fine, mixed, semiactive, thermic Aquic Hapludults
Series Name: Creedmoor
Landscape Position: Sideslope
% Slope: 0-3%
Conducted By: CC
Date: 10/17/2018
p W 0
O 3 N IL CD
C i7
N p C
a �
01 3
0AN
y p o
Ap
1 0-2
7.5 YR 2.5/2
-
-
-
-
dry
I SiUSL
Wk.
I Med.
SBK
I VFR
NS
NP
E
2-7
7.5 YR 5/4
-
-
-
-
dry
SL
Wk.
Med.
SBK
FR
NS
NP
Bt
7-23
10 YR 5/6
10 YR 6/2, 2.5 YR 4/4
Common
Small
D,C
dry
C
Str.
Med.
SBK
VFI
VS
VP
Btg
23-35
10 YR 6/2
10 YR 7/6, 2.5 YR 4/6
Abundant
Small
D,C
dry
C
Str.
Med.
SBK
VFI
VS
VP
BCg
35-41
10 YR 6/2
10 YR 5/8
Abundant
Med.
D,C
d
CUSCL
Wk.
Med.
SBK
FI
S
VP
Cr
41-46
5 YR 4/3
5 YR 7/2
A undant
Med.
D
dry
SiL
Sls.
-
Mass.
VFI
NS
NP
AR
46
Restrictive Horizon:
Type Depth Thickness
Exp 7"
SHWT 7"
Cr 46"
Seasonal High Water Table:
Depth Type (apparent/perched):
7" perched
Drainage Class:
M

SFR Loading Rate Worksheet (15A NCAC 02T .0600 ONLY) l
Project Name: 1719 Farrington Rd Property, Lot 1 - Appendix 4
Facility Address: 1727 Farrington Road, Lot 1
35.761081,-79.011532
County: Chatham
Prepared by: Soil & Environmental Consultants, PA
Project Design Flow = 600 gal/day
# of Bedrooms
Required Flow
2 bedrooms
240 gal/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

Potential Evapotranspiration Worksheet (Thornthwaite method)
Project Name: 1719 Farrington Rd Property, Lot 1 - Appendix 4
Location of Temperature Data: NC Climate Division 4; Central Pil
Starting Year of Data Record: 1989
Ending Year of Data Record: 2018
Period of Record (years): 30
Source of Data: https://www.cisa.sc.edu/atlas/regions-nc-4.html
Site Latitude (degrees) 35.76
Calculated PET: 32.38 inches
Mean Monthly
Temperature
(degrees F)
Daylight
Hours 112
Heat Index
Calculated
PET
(inches)
January
39.2
0.87
0.71
0.22
February
43.4
0.85
1.42
0.45
March
50.3
1.03
2.93
1.18
April
59.1
1.09
6.30
2.34
May
64.6
1.21
7.01
3.50
June
74.9
1.22
10.63
5."
July
78.3
1.23
11.95
6.25
August
76.9
1.16
11.38
5.59
September
70.6
1.03
9.08
3.90
October
59.8
0.97
5.61
2.16
NNovember
49.7
0.86
2.78
0.93
December
42.6
0.85
1.29
0.41
Total =
70.00
32.38
SFR-LRW 9-08

SFR Precipitation Worksheet I
Project Name: 1719 Farrington Rd Property, Lot 1 - Appendix 4
Location of Precipitation Data: NC Climate Division 4; Central Piedmoi
Starting Year of Data Record: 1989
Ending Year of Data Record: 2018
Period of Record (years): 30
Source of Data: https://www.cisa.sc.edu/atlas/regions-nc-4.html
80th Percentile Annual Precipitation: 50.58
January
February
March
April
May
June
July
August
September
October
November
December
Total =
SFR-LRW 9-08
Mean
Monthly
Precipitation
% of Mean
Annual
Precipitation
Both
Percentile
Monthly
Precipitation
3.54
7.69
3.89
3.01
6.55
3.31
4.17
9.06
4.58
3.63
7.90
3.99
3.81
8.28
4.19
4.23
9.19
4.65
4.57
9.93
5.02
4.24
9.22
4.67
4.45
9.67
4.89
3.57
7.76
3.92
3.24
7.05
3.56
3.55
7.71
3.90
46.02
100.00
50.58

Project Name: 1719 Farrington Rd Property, Lot 1 - Appendix 4
Annual Hydraulic
Design Flow = 600 gal/day Loading Rate = 18.18 inch/yr
SFR Loading Rate Group: SFR-C
Limiting Soil Ksat = 0.014 inch/hour Irrigation Area = 19,322 square ft
Drainage Coefficient = 0.280 = 0.44357 acres
Drainage Rate = o.09408 inch/day (Formula: K.t * Drainage Coefficient * 24)
Number of
Days in the
Month
PET
in/mo
Vertical
Drainage
(in/mo)
80th Percentile
Monthly
Precipitation
(in/mo)
Maximum
Allowable
Irrigation
in/mo
Maximum
Allowable
Irrigation
(gallons/day)
Maximum
Allowable
Irrigation
(gallons/month)
January
31
0.22
2.92
3.89
0.00
0
0
February
28
0.45
2.63
3.31
0.00
0
0
March
31
1.18
2.92
4.58
0.00
0
0
April
30
2.34
2.82
3.99
1.17
469
14.061
May
31
3.50
2.92
4.19
2.23
866
26,860
June
30
5.44
2.82
4.65
3.62
1.452
43,568
July
31
6.25
2.92
5.02
4.15
1,612
49,973
August
31
5.59
2.92
4.67
3.84
1,494
46.310
September
30
3.90
2.82
4.89
1.83
734
22,035
October
31
2.16
2.92
3.92
1.16
450
13,935
November
30
0.93
2.82
3.56
0.19
75
2,258
December
31
0.41
2.92
3.90
0.00
0
0
TOTAL= 365 32.38 34.34 50.58 10.1a 71bz.bu z-Ia,uuu
Formulas: (Max Allowable Irrigation) = (PET) + (Drainage) - (Precipitation)
SFR Loading Rate
Table
SFR
Maximum Annual
Geometric Mean
Loading
Loading Rate
KS,} Range
Rate
(in/yr)
(in/hr)
Group
Low - High
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
Assignment to 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.
SFR-LRW 9-08
Required Flow
2 bedrooms
240 gal/day
87,600 gal/yr
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: 219,000 gallyr
The Maximum Allowable Irrigation number must be
greater than or equal to the required flow.

This chart provides a rough estimate of the SFR Loading Rate Group for soils that formed
in residuum weathered from bedrock of Triassic Basin origin. This table should not be
used to determine the SFR Loading Rate Group. Actual assignment to a SFR Loading
Rate Group for each 15A NCAC 02T .0600 permit application shall be determined by the
geometric mean of in -situ saturated hydraulic conductivity data collected in the most
restrictive horizon for each soil mapping unit.
Particle -size
Drainage Class /
-SFR
Control
Water Table
Depth to
Shrink -
Group
Name
Section
Depth / Type
Rock
Subsoil Hue
swell
Classification
A
Granville
fine -loamy
Wl>60"
>60"
7.5YR-2.5Y
Low
Fine -loamy, siliceous, semiactive, thermic Typic Hapludults
A(B)
Exway
fine
W/>60"
20-40" Cr
10R-2.5YR
Moderate
Fine, mixed, semiactive, thermic Typic Rhodudults
A(B)
Mayodan
fine
W/>60"
>60"
2.5YR-7.5YR
Moderate
Fine, mixed, semiactive, thermic Typic Hapludults
A(B)
Pinoka
fine -loamy
W/>6'
20-40" Cr
2.5YR-10YR
Low
Fine -loamy, mixed, subactive, thermic Typic Hapludults
A(B)
Wadesboro
fine
W/>60"
40-60" Cr
10R-2.5YR
Moderate
Fine, mixed, semiactive, thermic Typic Rhodudults
B
Peakin
fine
W/3.0-6.0' P
>60"
10R-7.5YR
Moderate
Fine, mixed, semiactive, thermic Typic Hapludults
B(C)
Claycreek
fine -silty
MW/1.5-3.0' P
>60"
7.5YR-2.5Y
Low
Fine -silty, siliceous, semiactive, thermic Oxyaquic Hapludalfs
B(C)
Hallison
fine -silty
W-MW/2.5-4.0' P
40-60" Cr
5YR-10YR
Low
Fine -silty, mixed, semiactive, thermic Typic Hapludults
B(C)
Mooshaunee
fine -silty
MW/1.5-3.0' P
20-40" Cr
5YR-10YR
Low
Fine -silty, mixed, semiactive, thermic Aquic Hapludults
C
Brickhaven
fine
MW/1.5-3.0' P
40-60" Cr
2.5YR-10YR
Moderate
Fine, mixed, semiactive, thermic Oxyaquic Hapludalfs
C
Carbonton
fine
MW/1.0-2.0' P
20-40" Cr
5YR-10YR
Moderate
Fine, mixed, semiactive, thermic Oxyaquic Hapludalfs
C
Creedmoor
fine
MW-SP/1.0-2.0' P
>60"
7.5YR-2.5Y
High
Fine, mixed, semiactive, thermic Aquic Hapludults
C(D)
Green Level
fine
SP/1.0-2.5' P
>60"
2.5YR-10YR
Very High
Fine, mixed, active, thermic Vertic Hapludults
C(D)
Polkton
fine
MW/1.5-2.5' P
20-40" Cr
2.5YR-10YR
Very High
Fine, mixed, active, thermic Oxyaquic Vertic Hapludalfs
C(D)
White Store
fine
MW/1.0-1.5' P
40-60" Cr
2.5YR-10YR
Very High
Fine, mixed, active, thermic Oxyaquic Vertic Hapludalfs

1719 Farrington Road Hydraulic Conductivity Testing (Ksats)
S&EC Ksat Calculations Chatham County, NC 2/20/2019
Measurements conducted by: Jacob McGaughey
Checked by: Cory Connell
HORIZON LOT 2 GEOMETRIC MEAN
Lot IN/HR IN/YR GPD/SF
Suitable Soil
Total square footage: 20,688 Bt 0.021 182.522 0.313
BC
Lot 2
Stte t
Depth in cm/hour In/hour gpd/sf
Bt 30 0.061 0.024 0.361
BC 37 0.058 0.020 0.345
C 65 0.065 0.025 0.383
Site 3
Depth in cm/hour in/hour gpd/sf
Bt 30.00 0.045 0.018 0.266
BC 37.00 0.055 0.022 0.325
C 60.00 0.121 0.050 0 715
0.014 122.401 0.220
0.023 199.496 0.339
Site 2
Depth in cm/hour in/hour gpd/sf
Bt 30.00 0.054 0.021 0.319
BC 36.00 0.016 0.006 0.095
C 63.00 0.024 0.009 0.142

AVERAGE:
cm/hour in/hour gpd/sf
0,061 (L024204 0,363413
Inch cm
Hole Depth: 30 76.2
K: 6.5 16.51
Hf: 6.5 16,51

AVERAGE:
cm/hour in/hour gpd/sf
0.058 0022986 0345131
inch N1
Hole Depth; 37 93.98
Hi: 6 15.24
Hf: 6 15.24

AVERAGE:
cm/hour in/hour gpd/sf
0,065 OA2554 0.383478
Inch cm
HWe Deptfe 65 165.1
FF: 6 15.24
Hf 6 15.24

AVERAGE:
cm/hour in/hour gpd/sf
U54 0-021332 0,320297
Inch cm
Hole Depth: 30 76.2
Hi: 6 1524
Hf 7 17.78

AVERAGE:
cm/hour in/hour gpd/sf
0.016 0 006385 0.09587
Inch cm
Hole Depth. 36 9144
HI: 6 1524
HF 6 1524

AVERAGE:
cm/hour in/hour gpd/sf
0 024 0.0093 0139638
inch cm
Hole Depth: 63 16002
Hi: 8 2032
Hf: 8 2032

AVERAGE:
cm/hour in/hour gpd/sf
0.045 0.017878 0.268435
Inch cm
Hale Depth; 30 76.2
Hr 6 15.24
Hf 6 15.24

AVERAGE:
cm/hour in/hour gpd/sf
0055 0-021709 0.325957
inch cm
Hole Depth: 37 9398
He 6 1524
HF 6 1524

AVERAGE:
cm/hour in/hour gpd/sf
0.121 0.047675 0.725826
inch cm
Hole Depth: 60 152.4
HI: 6 1524
Hf: 6 1524

Waypoint.
0
7621 Whitepine Road, Richmond, VA 23237
Main 804-743-9401 ° Fax [phone]
ANALYTICAL
www.waypointanalytical.com TEXTURE ANALYSIS
Client:
Grower:
Report No:
19-045-0633
SOIL & ENVIRONMENTAL
1719 Farrington Rd
Cust No:
45479
8412 FALLS OF NEUSE ROAD
13609-52
Date Printed
02/20/2019
SUITE 104
Page:
1 of 1
RALEIGH
NC 27615
Farm:
Date Received : 02/14/2019
Lab Field ID
Sample
Percent
Percent Percent
Textural
No
Identification
Sand
Silt Clay
Classification
18502
SS-L1
74.5
18.6 6.8
Sandy Loam
18503
SS-1-2
66.5
22.6 10.8
Sandy Loam
18504
SS-1-3
78.5
16.6 4.8
Loamy Sand
Analysis prepared by: Waypoint Analytical Virginia, Inc.

Page 1 of 2
Report Number: 19-045-0633
Account Number:45479
Send To: SOIL & ENVIRONMENTAL
ACCOUNTS PAYABLE
8412 FALLS OF NEUSE ROAD
SUITE 104
RALEIGH NC 27615
■
•
7621 Whitepine Road, Richmond, VA 23237
Waypoint,
Main 804-743-9401 a Fax [phone]
ANALYTICAL www.waypointanalytical.com
"Every acre... Every year. Grower: 1719 Farrington Rd
13609-52
SOIL ANALYSIS REPORT Analytical Method(s): SMP Buffer pH Ammonium Acetate Loss On Ignition Bray
P1 Water pH
Date Received: 02/14/2019 Date Of Analysis: 02/15/2019 Date Of Report: 02/20/2019 NC = North Carolina Fertility Index Value
OM
W/V
ENR
Phosphorus
Potassium
Magnesium
Calcium
Sodium
pH
Acidity
C.E.0
Sample ID
Field ID
Lab
Number
%
Rate
Soil
Class
Ibs/A
P1
ppm Rate
ppm Rate
ppm Rate
K
ppm Rate
Mg
ppm Rate
Ca
ppm Rate
Na
ppm Rate
Soil
PH
Buffer
Index
H
meq/1009
meq/100g
SS-L1
18502
1 1.0
L
67
24.7 M
19.6 VL
NC = 10
23.6 M
173 L
5.0
6.85
0.8
1.9
MIN
SS-L2
18503
1.6
L
76
18.8 M
37.8 VL
NC = 19
83.6 H
345 L
5.0
6.76
1.7
4.2
MIN
SS-L3
18504
0.8
VIL
64
10.0 L
17.8 VL
NC = 9
20.5 M
129 L
5.0
6.87
0.6
1.5
MIN
Percent Base Saturation
Nitrate
Sulfur
Zinc
Manganese
Iron
Copper
Boron
Soluble Saks
Sample ID
Field ID
K
%
Mg
%
Ca
%
Na
%
H
%
N09 N
PP m Rate
S
PP m Rate
Zn
PP m Rate
Mn
PP m Rate
Fe
PP m Rate
Cu
PP m Rate
B
PP m Rate
SS
ms/cm Rate
SS-L1
2.6
10.4
45.5
42.1
0.04 VL
SS-L2
2.3
16.6
41.1
40.5
0.05 VL
SS-1_3
3.0
11.4
43.0
40.0
I-T
1
0.07 VL
Values on this report represent the plant available nutrients in the Explanation of symbols: % (percent), ppm (parts per million), Ibs/A This report applies to sample(s) tested. Samples are retained a
soil. Rating after each value: VL (Very Low), L (Low), M (Medium), (pounds per acre), ms/cm (milli -mhos per centimeter), meq/100g maximum of thirty days after testing. by. Pw« mF 6
0r
H (High), VH (Very High). ENR - Estimated Nitrogen Release. (milli -equivalent per 100 grams). Conversions: ppm x 2 = Ibs/A, Soluble Analysis prepared by: Waypoint Analytical Virginia, Inc
C.E.C. - Cation Exchange Capacity. Salts ms/cm x 640 = ppm.
Pauric McGroary

Page 2 of 2
Report Number: 19-045-0633
Account Number: 45479
Send To: SOIL & ENVIRONMENTAL
ACCOUNTS PAYABLE
8412 FALLS OF NEUSE ROAD
SUITE 104
RALEIGH NC 27615
Date Received: 02/14/2019
Date Of Report: 02/20/2019
•
Waypoint.
ANALYTICAL.
"Every acre... Every year. ",
SOIL FERTILITY RECOMMENDATIONS
7621 Whitepine Road, Richmond, VA 23237
Main 804-743-9401 ° Fax [phone]
www.waypointanalytical.com
Grower: 1719 Farrington Rd
13609-52
Nitrogen
Phosphate
Potash
Magnesium
Sulfur
Zinc
Manganese
Iron
Copper
Boron
Sample ID
Intended Crop
Yield Goal
Lime
N
P205
K20
Mg
S
Zn
Mn
Fe
Cu
B
Field ID
Tons
Tons/A
Ib/A
Ib/A
Ib/A
Ib/A
Ib/A
Ib/A
Ib/A
Ib/A
Ib/A
Ib/A
SS -Li
Hay
4
1.0
50
160
23
SS-L2
Hay
4
1.5
50
160
0
1
F_SS--L3
Hay
4
0.8
50
160
24
Comments:
Sample(s) : SS-11-2,SS-11-3 Crop: Hay
Apply additional 50 pounds of nitrogen after every cutting and harvest of hay.
Apply additional 75 pounds of nitrogen after every cutting and harvest of hay.
For grass hay or pasture needing high rates split the P and K application. Apply 1/2 in the spring and 1/2 in late summer.
For soils low in sulfur, apply 20-40 Ibs of sulfur as a sulfate in the spring with the nitrogen.
Sample(s) : SS-11-3 Crop: Hay
Apply dolomitic lime to raise pH and improve the magnesium level.
If dolomitic lime is not used, apply required magnesium with magnesium oxide. Epsom Salts, K-Mag or Sul-PO-Mag.
The amount of fertilizer recommended on the first page is the total amount needed for the entire growing season. Split into 4-5 applications to keep the sports field green
and prevent fertilizer loss. Custom blend is best to meet exactly the requirement, if this is impossible, the above specific fertilizer application is a general guideline, if the
specified grades can not be found, replace with fertilizer having similar N:P:K ratio. For spring used sports fields apply nitrogen fertilizer applications starting in April after
green up. Apply 0.5 - 0.75 Ibs of nitrogen per 1000 square feet in a 30 day period from April thru June and then 1 lb of nitrogen per 1000 square feet in September and
November. Each application of nitrogen should contain at least 25% slow release nitrogen. For fall used sports fields, apply nitrogen fertilizer applications starting in July
Apply 0.5 - 0.75 Ibs of nitrogen per 1000 square feet inever 30 days from April thru June and then 1 lb of nitrogen per 1000 square feet in September, October and
November. Each application of nitrogen should contain at least 25% slow release nitrogen
"The recommendations are based on research data and experience, but NO GUARANTEE or WARRANTY expressed or implied, concerning crop performance is made." Our reports and letters are for the exclusive and confidential use of our clients„ and may not be reproduced in whole or part, nor may any reference be made to the Pori. X" G0,K
work,the results, or the company in any advertising, news release, or other public anouncements without obtaining our prior written authorization. Copy right 1977.
Pauric McGroary

ENIGNEERING CALCULATIONS
FOR
WASTEWATER COLLECTION, TREATMENT, &
SURFACE DRIP DISPERSAL FACILITIES FOR A
FIVE BEDROOM RESIDENCE WITH
PRETREATMENT FOR 600 GPD;
SURFACE DRIP FOR 600 GPD
1719 FARRINGTON ROAD
CHATHAM CO. N.C.
OWNER:
BLACKSMITH RANCH, LLC
WILLIAM FOY, PRES.
1719 FARRINGTON ROAD
APEX, NC 27523 l
919-219-6233
9810
�a
`•,tA( R
DESIGN ENGINEER:
JOHN R. HARMAN, PE
2112 WHITE OAK ROAD
RALEIGH, N.C. 27608
[phone]
MAY 10, 2023
REVISED OCT. 10, 2023

JOHlei R. HARMAN P. E.
CONSULTING ENGINEER
2112 White Oak Road
Raleigh, North Carolina 27608
(o) 919.818.2077
(0 919.779.0826
email= I sekliarnianS3 �t amaiI.com
May 10, 2023;
Revised October 15. 2023
Re: Engineering Calculations, System Component Sizing Documents, and Supporting Manufacturer's
Cut Sheets Related to a Proposed Wastewater Pre -Treatment (600 GPD) and Dispersal by Surface Drip
Irrigation Application (600 Gallons per Day) for a Five (5) Bedroom Residential Lot.
Conventual Basis of Desi
Project Description: The project is described as providing a wastewater collection, septic tank, advanced pre-
treatment (NSF40, or better) components, LTV Disinfection, a Flow EQ field dose pump tank, and surface
dispersal by drip irrigation to three (3) field zones.
All system Pre -Treatment components (Septic Tank, EZ Treat Recirc Media Filter, etc) will be suitable for treating
boo gallons per day of domestic strength wastewater from a Five (5) bedroom residence, and dispersal to a surface
drip application area for an Average Daily Flow of 600 Gallons per Day.
Summary of System Description:
When approved the permit might read:
"For the construction and operation of a wastewater collection and treatment for 600 gallons per day (GPD) from
a single family residence. Surface dispersal by means of drip irrigation system is limited to 600 gallons per day.
The system shall consist of. a 1,500 gallon baffled septic tank with an effluent filter, a 2,500 gallon (two
compartment) Recirculation/Storage Pump Tank, a Model 600 (600 GPD) EZ Treat Polystyrene Recirculating
Media Filter, dosed by a 20 gallon per minute (GPM) recirculation pump, a flow splitting device, a io GPM UV
disinfection unit, a 3,500 gallon Field Dose Tank, a 0.46 acre drip irrigation area with a minimum of 5,197linear
feet (LF) of drip line, 2,589 emitters, a rainfall sensor to prevent irrigation during inclement weather, and all
associated piping valves, controls, and appurtenances to serve the single family residential compound at 1719
Farrington Road, Apex, NC 27523, with no discharge of wastes to surface waters, pursuant to the application
received, and in conformity with the Division approved plans and specifications considered to be a part of this
permit.
Component Sizing:
• Septic Tank Sizing: 1,5oo Galion The Septic Tank proposed for use will be equal in respects to
NCDHHS Approval STB-390, for a 1,5oo Gallon Septic Tank. See Drawings for details.
• Aecirc Tank 8e Simplex Pum for EZ Treat Media Dosin er the NCDHHS A roval: As a
minimum, equal in size to the Average Daily Flow (600 GPD). The Recirc Pump Tank proposed for

use is a 2,5oo Gallon 2 Compartment) Pump Tank equal in respects to NCDHHS Almroval
PT-2103. See Drawings for details.
• Field Dose Tank: The Field Dose Tank proposed for use is a 3.5oo Gallon Pump Tank,
e ual in res eets to NCDHHS Approval PT-2105. See DrawinU5 for details.
• Anti -Buoyangy Calculations For Tanks:
-1, 5oo Gal Septic Tank: (ST-390; Shoaf PreCast Inc.)= 10.25' x 5.83' x 5.5' x 62.4 #/cf =-20,509 #
(Upward)
Dead Wt. of Tank (Shoaf PreCast, Inc): 13,000# (Downward)
Weight of Soil on Top of Tank: 2.5' x ((10.25' x 5.5')- (2 x 3.14 x 1^2)) x 11Opcf = 13,776#
Determine Sliding Resistance (K, Ratio of Lateral to Vertical Earth Pressures ,=0.33; Coefficient of
Friction Against Side of Trench, = 0.5; from Table 3, ACI DD41) Rs=(o.33)x(o.5)x 1/2 x(110-
62.4)(5.0^2)= 98#/l.f. acting along circumference which gives a "Mired In" resistance of 98# x (2 x
10.25 + 2 x 5.5') =3o87# (Downward)
Total Upward Force:-20,509 #
Total Downward Force(s): (1 000# + 1 6# + o8 # = 2 86 #
Net Downward Forces: 9,354#
Safety Factor: [29863/20509]= S.F. >1.45 O.K.
-2.5oo Gal Recire Tank: (PT-2103 Shoaf PreCast, Inc.)= 12.50' x 6.5' x 5.5o h' x 62.4 #/cf = -27885#
(Upward)
Dead Wt. of Tank (Shoaf PreCast, Inc): 16000# (Downward)
Weight of Soil on Top of Tank: 2.5' x ((12.5' x 6.5')- (2 x 3.14 x 1^2)) x llopcf = 2o6i6#
Determine Sliding Resistance (K, Ratio of Lateral to Vertical Earth Pressures ,=0.33; Coefficient of
Friction Against Side of Trench, = 0.5; from Table 3, ACI DD41) Rs=(0.33)x(o.5) x 1/2 x(110-
62.4)(5.5A2)= 119#/l.f. acting along circumference which gives a "Mired In" resistance of 119# x (2 x
12.5 + 2 x 6.5) =4522# (Downward)
Total Upward Force: -27885 #
Total Downward Force(s): (16000# + 2o616# + 4r,22#) = 41138#
Net Downward Forces: 13253#
Safety Factor: [41138/27885]= S.F. >1.48 O.K.
:3.5o❑ Gal. Field Dose/Storage Tank: Buoyancy (PT-2105; Shoaf PreCast, Inc.)= 12.5' x 6.5' x 7.33' x
62.4 #/cf =-37163# (Upward)
Dead Wt. of Tank (D. Brantley & Sons, Inc): 19640# (Downward)
Weight of Soil on Top of Tank: 3.0' x ((12.5' x 6.5)- (2 x 3.14 x 1^2)) x 110pcf = 24740#
Determine Sliding Resistance (K, Ratio of Lateral to Vertical Earth Pressures ,=0.33; Coefficient of
Friction Against Side of Trench, = 0.5; from Table 3, ACI DD41) Rs=(o.33)x(o.5)x 1/2 x(110-
62.4)(7.33^2)=211#/l.f. acting along circumference which gives a "Mired In" resistance of 211# x (2 x
12.5' + 2 x 6.5') =8o18# (Downward)
Total Upward Force: -37163 #
Total Downward Force(s): 1 6 0# + 2 7 0# + 8 oi8# = 2 8#
Net Downward Forces: 11,535#
Safety Factor: [52,398/37463]= S.F. >1.41 O.K.
• Pressure Dosing to Media Filter:
-Per manufacturer recommendations: Minimum of 6 times ADF to Media Filter: 6 x 600 gpd = 3600 gpd
to Media Filter. The Filter is dosed by; 8 sprayers @ 1.7 gpm = 13.6 gpm... dose volume is +/-50 gallons
per dose x 72 doses (max) per day = 3600 gpd, (or, 6 times 600 gpd ADF).
Timer: "On" time = 150 gal/dose / 13.6 gpm] = 3.67 min, or 220 seconds. "Off' time = 20 min -3.67
minutes = +/- 16.33 minutes, or 98o seconds. Recirc Ratio = 6. Dosing to the Media Filter will be by
means of the EZ Treat Sta-Rite STEP 20 (0.5 Hp, 20 gpm) pump.

Flory E ualization E Tank Field Dose Tank- Sizing: Field A
�pglication = oo PD
-Using Guidance of 5-Day Storage Requirement; 5 x 600 gpd =3000 gallon (Min.) Requirement
-Bottom "Dead" Storage Requirement for Pump: 18"; Pump Off Elev = 257.5
-Using the Engineer specified 2,500 gallon Pre -Cast Tank:
Recirc Vol for EZ Treat: 46" length = 600 Gallons; (Note: Required for PreTreatment of 600 GPD)
Balance of this Tank Available for Field Storage: Field Storage Compartment=107"
Emergency Volume Available in 250o Gal Tank above Pump Off Elev, to Inlet of UV: ((261.83-257.5) x
8.92'x 6.0')x 7.48=1733 Gals
-In Addition.... Using the Engineer specified 3,500 gallon Pre -Cast Tank:
Emergency Volume Available above Pump Off Elev, to Inlet of UV: ((261.83-257.5) x 12.o'x6.o')x
7.48=2331 Gals
Total Volume Available for Emergeney Storage Above Pump Off: 4o64 Gallons;,
Equals 6.7 Days., 600 GPD
-Vertical Distance for `Dose Enable" Float above "Off': Use 4"= Elev. 257•83
-Set "Peak Float" +/- 12" above "Dose Enable" Float = Elev. 258•83
• Drip Dispersal Unit:
Use a three (3) zone residential style model as produced by American Manufacturing Co., and equal in all
respects to provisions of IWWS Q3.-1-R6B. or Engineer Approved Equal.
Estimated Re uired Pump Conditions: 22 gal/Min @ 133 ft. TDH; Su ested Pump is
PUTURB 2.c;10122W, as supplied by American Manufacturing Co., or approved equal.
Calculations of Pollutant Removal of Pre -Treatment Unit:
The EZ Treat Model 1200 Pretreatment System is an Innovated and Approved product sanction for use in North
Carolina under the NCDHHS-Division of Public Health for meeting TS-2 level of wastewater renovation and
pollutant removal (IWWS 2015-03-112) and is incorporated herein by reference. It is also approved as meeting the
less stringent levels of NSF 40 parameters of treatment (which is the level only required for surface application
systems). The constituent levels required under Technical Standard 2 (TS-2) are as follows:
a. Biochemical oxygen Demand, 5-day (BOD ) <10 mg/l.
b. Total suspended solids < 10 mg/l.
c. Ammonium -nitrogen < 10 mg/l.
d. Either a 50% reduction of total nitrogen (organic + ammonium + nitrate forms) concentration in
the septic tank effluent or a total nitrogen concentration in the effluent from the pretreatment unit
< 15 mg/l.
e. Fecal coliform bacteria densities < 10,000 colonies/ I 00ml.
(Standards are arithmetic means, except fecal coliform is a geometric mean).
Field Application Information:
Application Area (Coverage): 19,86o S.F.; ADF= 600 GPD; Lineal Feet of Drip Tubing=5197 L.F.
Annual Loading Rate(Design): 600 gpd x 365=219000 gal/yr over 1986o sq.ft=1.47 ft/yr= +/-17.7 in/yr.
(Which less than the Soil Scientist maximum of 18.18 in/yr)
Effective Hyd Loading Rate=600/1986o=0.030 gpd/sf; Avg. Lateral Spacing: 1986o sf/51971f= 3.82 ft.
Emitter Discharge Rate=o.61 gal/hr.; Area Covered by Each Emitter: 2.0' o.c. x 3.82'=7.64 sq. ft.
Instantaneous Loading Rate to Soil: o.61 gph/7.64 s.f.=o.o8 gal/hr per s.f.,
or 3478 gal/hr per acre, or o.128 inch/hr. Does not exceed Soil Scientist Limiting Value of o.5 in hr
-EndofDesign Calculations C�
John R. Harman, PE
Consulting Engineer

A Template for Estimating Critical Flushing Flows & TDH
by Comparative Zone Evaluation Method -rev 101813
Surface Drip-TDH Calcs
1719 FARRINGTON RD; APEX, NC
John R. Harman, PE
LEGEND
= ESIGNER INPUT VALUE
=AUTO C L AL E
Constant Recommen e
2112 White Da RoadLOR
Raleigh, North -Carolina 27608
-mail: lackharman
@gmall.com
Project:
1719..arnngtoin
Tj_a_te.-____1T[_71_2
2
Engr: J. R. HARMA , PE
RALEIGHNC
ZONE INFO
+
# of
# Doses
File:
TDH CALCS­ FOR
1 19 ARR} GT0N-RD; PEX NC
Zone Lin. Ft.
Lats.
I Per lDay
one 1772
lass ication:
Residential i
one 1593
6
Daly Flow g . ;
4 0-
Zone 3 1515
6
rea men Level:
791
1
1 o s: o
oils Report Max Application rate: PD q. t.):
zj.on
-Application Area by Plan Layout:
19866
S.F.
Ac�CWA yyLLayout: __(GPVs i 0.024 6
ZONES:TOTAL. # OF SINGLE
3 5 71
I
I
.
-A OSES PER DA 9
ctua ripper Length;
4 OF D6SR 1 N L lA
(# F DOSES PER SET UF DUAL Z NE :
Pumps "OFF" Elev.=
"See Plans
LD ZONES:
TOTALS:
ZONE 1
ZONE 3
e�ngth orf ii5'pper Line
0
1772
15
��5
Line Spacing p@Cg Between atera s, IT
3.82
3.8
$
ee Plans
Application Area of Zan" sq.:
198656600
6710
6550
Emitter Spacing (ft):
2
2
2
Emitter Flow (gpm):
( 0.61 GPHI matter
+T=--`O.M-o17
0.01017
Dosing Flow Normal Dose (from Dripnet):
8.81
8.16
return ush ng low from Dripnet s
14.32
ff. T7
11.31
Total Emitter & FlushIng w
23.13
9.89
Total Head,(ft) Loss Thru Dripper System {from €5npnet
:
89.00
8 .53
79.88
i
Doses Per Day Per Zone:
3
3
'G a) - P _e r 0-o-se per one (�C_V 1 U Ulb o ermi
53.31
Volume in Laterals & Manifolds(From DripNet):
23.8
23.3
1.8
Zone Drainage Volume between doses(Assume 5060
11.9
11.7
10.
Min. Dose for 5 times Drainage Volume:
59.5
58.4
54.4
Pump Run Time Per Dose.(min): f Running Ling Zone
6.1
6.1 i
i
Supply Main Inside Dia. YRem: 3-'or1 c 40 PV
2.00
2.00
.00
Supply Main Flow cfs): 1@ Flus g Episodel 115
0.0 43
0.0434
Supply Main Velocity @ lus ing( ps): 1
.0
2.0
Supply Main ve ocdy uring Dosfing (fps :�L
0.9
0.98
T.5
Return Main inside Dia. (in):Rem:
1.5
1.5
Return Main .Flow (vfs):
248
0.0252 j
Return am Velocity (Tps):
2.6
.0
2.1
PUMP DESIGN CRITERIA:
- - -
Supply Design Flow gpm i atFlushing:
3.13
19.89
Return Design ow (gpm):
2
11.12
11.31 I
I
'Eon vent: CrvU
.
Conserv; =140 Accpbe
To EHj
130
130,
Supply Length (ft):
47
280
358
Supply Head Loss (f
3
3.84
efurn Length (ft):
370
31511
31
3.68
Return Head Losg (ft):
9.12
4.86
High Pt Elevin Zone
269
2
268
_
Static Head ):
V.
ZO E H.P.
11.50
11.50
Drip System Head Loss (
rom Dnpnet):
91.3$
$ .53
79.88
Head Loss Thru Hydraulic Unit Allowance (5 psi) I11.5
1 .5
.55
Desired Lat.Distal Pressure Req'd=5 psi (Berk -Rite Factor)
11.55
11.55
11.55
TOTAL DYNAMIC HEAD ESTIMATE (ft):
133.03
123.26
117.32
I
Pump Operating Conditions 1
23.131
gpm @
(ZONE 1)

Design Specifications
1719 Farrington Road
AAex, NC {Chatham Co
May 22, 2023
Revised Oct. 15, 1
Site Preparation and Drainage
1. The contractor shall smooth the disturbed land surfaces after installation of all
components of the wastewater treatment system have been completed, and shall
leave the surface neatly shaped to shed rainwater. All disturbed areas and the
discharge area shall be seeded with grass and covered with straw/mulch.
2. If illustrated on the Drawings, the drip irrigation field shall be protected from
surface flow through the use of surface swales and/or interceptor drains. Surface
swale and interceptor drain shall follow the slope of natural grade (1-2% slope)
and at no point have less than 1 % slope. They are to be located no closer than
25 feet from the irrigation application area. .
3. All utilities including phone, electric and water lines shall be located prior to
installation. If utilities interfere with the system design and components, the
designer shall be contacted.
4. Any additions or removal of soil or other site alterations designated as active and
/or repair drip dispersal areas, shall receive prior approval from the Engineer or
Soil Scientist.
5. After installation of the drip lines, no disturbances such al tilling, plowing or other
potentially destructive activity shall occur in the drip dispersal fields without prior
approval from the Engineer.
6. The project engineer and soil scientist shall inspect and approve or deny all site
modifications after they have been made.
Pipe Installation
Five Bedroom Surface Drip
1719 Farrington Road
Chatham Co., NC
Page 1 of 7

7. All wastewater piping connecting the residence, septic tank, recirculation tank,
and pump tank shall be 4-inch diameter Schedule 40 PVC sewer pipe laid at
1.0% minimum grade.
Septic Tank, Recirculation Tank, and Pump Tank
8. The septic tank shall be State approved. The tank will be a 1,500 gallon capacity,
Shoaf PreCast (ST-390) reinforced precast concrete tank with full baffle, and
shall have easy access to each chamber from ground level for checking and
pumping. The first chamber of the septic tank will contain 2/3 to 3/4 of the
volume of the total tank and the baffle shall contain a horizontal opening across
the tank at about midway its height. The tank shall be placed at the location and
elevation as required by plans and specifications. The tank shall be properly
sealed using 1" diameter butyl rubber pliable sealant as approved by the tank
manufacturer.
9. At the outlet opening of the precast concrete septic tank, install one Orenco
Residential Biotube° effluent filter (FT-JP-04-NC) or its Engineer Approved
equivalent, and provide easy access to the filter from ground level for checking
and cleaning. The filter shall be provided by the Septic Tank provider and
installed accordance with the manufacturer's recommendations. Substitutions
shall be approved by the engineer in advance.
10.The recirculation tank for the EZ Treat filter dosing shall be State approved and
provided by Shoaf PreCast (PT-2103), or engineer approved equal. The tank will
be a two (2) compartment tank with an internal baffle wall (floor to ceiling) as
indicated on the Drawings with an overall rating of 2500 GALLONS holding
capacity as approved by the State, and bear the imprint of its DEH approval
number clearly on the exterior outlet end of the tank. Access shall be provided for
entry into the tank directly over the recic pump location and over the splitter
valve, and extend the access openings to 6 inches above final grade. Both
sections of the tank shall be properly sealed using 1-inch diameter butyl rubber
pliable sealant as approved by the tank manufacturer. After joining the tank
sections together, plaster along the joint with hydraulic cement, cement mortar,
or other approved waterproofing sealant. All pipe penetrations in the tanks shall
be booted with a State approved boot and stainless steel strap.
11.The Field Dose pump tank shall be provided by Shoaf PreCast (PT-2105) or
engineer approved equal. and shall be State approved. The tank will be a 3500
gallon capacity (minimum) tank with access directly over the effluent pump and
tank inlet. The access risers shall be 6 inches above finished grade. Both
sections of the tank shall be properly sealed using 1-inch diameter butyl rubber
pliable sealant as approved by the tank manufacturer. After joining the tank
sections together, plaster along the joint with hydraulic cement, cement mortar,
or other approved waterproofing sealant. All pipe penetrations in the tanks shall
be booted with a State approved boot and stainless steel strap.
Five Bedroom Surface Drip
1719 Farrington Road
Chatham Co., NC Page 2 of 7

12. Before backfilling around all tanks, and after all piping has been connected with
and sealed against the tanks, all tanks shall be filled to the outlet level with water,
and shall be observed for 24 hours for leakage. If the water level within the tanks
has changed more than 1/2 inch during the 24-hour inspection period, the tank
leakage tests are considered to have failed, and the tank must not be used until
the sources of the leaks have been found, the leaks properly sealed, and the
tanks retested and the leakage tests are passed. The engineer or his
representative shall be allowed to observe the installed tank/system
configuration, prior to backfilling around the tanks. Approved vacuum testing (4
inch Hg for 5 minutes) of any or all tank(s) may be used in lieu of leakage testing.
EZ Treat Recirculation Pump and Control Panel
13. The recirculation tank will contain the recirculating splitter valve and the turbine
dosing pump. The forcemain shall have a drainback configuration without a pump
check valve. The pump vault consists of a high -head effluent pump (Sta-Rite
STEP 30-115 volt for a two pod; or, 20-115 volt for a single pod system), three
float switch assembly all as provided by the EZ Treat Distributor.
14. The control panel shall be as provided for by the EZ Treat Distributor and in strict
conformance with the NC IWWS Approval requirements. A combination EZ Treat
Recirc and Drip Headworks control panel may also be used, if compatible with State
IWWS Approval.
EZ Treat Pretreatment Unit and Recirculation Tank
15. The EZ Treat pretreatment unit shall be as configured and constructed as described
in North Carolina IWWS 2015-03-R1 for the 600 gpd rated modules. The Model 600
has a surface area of approximately 30 square feet and 42 inches in depth. It shall
be timed dosed by pressure pipe distribution network using wide angle spray
nozzles above the media.
16. Two air vents shall be installed for each pod. One air vent shall be located on the
pod, and the other shall be located on the discharge cleanout.
17. The recirculating tank shall dose every 30 minutes for 3.0 minutes at
approximately 126 gallons per dose for a two pod system, or 40-60 gallons per
dose for a single pod system; Under peak water usage, it is the intent that the re-
circulating tank will dose the filter 4 to 6 times for every 1 dose to the disposal
site.
Ultraviolet (UV) Disinfection Unit (if Required)
18. If required by permit requires a TS-2 level of pretreatment or if disposal is by
means of surface drip application, the wastewater will flow by gravity to a single
bulb UV-101 disinfection unit. The UV disinfection unit shall be provided by the
Five Bedroom Surface Drip
1719 Farrington Road
Chatham Co., NC Page 3 of 7

EZ Treat Distributor and shall be installed according to manufacturer's
specification.
Perc-Rite Headworks Unit, Dosing Pump, and Control Panels
19. The headworks unit shall be a Three Zone Residential Drip Hydraulic Unit . The
headworks unit contains a flow meter, solenoid valves, disk filter and check
valve. The unit shall be provided by American Manufacturing Company, Inc. or
other approved distributor.
20. The flow meter shall be as manufactured by Master Meter or other, as provided
by the headworks unit provider.
21. The filter flush line, return line and each supply manifold for will have a normally -
closed solenoid valve (DH-SOLVLV1) associated with each of them. The
solenoid valves shall be provided by American Manufacturing Company, Inc. or
other approved distributor.
22.The Disk Filter (DF-100-140) shall be placed in the headworks unit between the
pump and drip field to screen out any debris. The filter shall be provided by
American Manufacturing Company, Inc. or other approved distributor.
23. The control panel shall be as provided by the drip system integrator for specific
application to its product and shall comprise of features required in its specific
NC IWWS Approval. A rain sensor (Mini-Clik, Rain-Clik, etc.) shall be provided
for Surface Drip Irrigation projects, and shall be wired into a "Dose Cut-out" relay
to prevent field dosing applications during inclement weather.
24.The drip dosing pump shall be a high head effluent pump and pump 22 gal/min
against 133 ft (TDH). The pump shall be a multi -stage effluent pump provided by
American Manufacturing Company, Inc. (PUTURB2510122W).
25.A 3/8 inch or larger nylon rope shall be used to lift and lower the pump into place.
The rope shall remain tied to the pump and to the outlet pipe at the threaded
union for easy access. If a Flow Collar/Cool Guide is to be used, it shall not to be
fixed to the bottom of the tank. This would prevent removal for maintenance.
26. Wire grips, duct seal, or other suitable material shall be used to seal around wire
and wire conduit openings inside tanks and control panel.
27.All metal in tanks shall be stainless steel unless otherwise approved by the
Engineer.
28.All control and power wiring for the entire wastewater disposal system shall be in
compliance with all local, state, and federal regulations, codes and ordinances,
and shall be confined on the site generally to the area of the pump, control floats,
automatic valves, control panel, alarm panel, and related wiring systems. The
Five Bedroom Surface Drip
1719 Farrington Road
Chatham Co., NC
Page 4 of 7

installation contractor shall be responsible for the costs of obtaining all power and
control wiring for this system and shall coordinate his work with the owner.
Manifolds and Drip Irrigation Lines
29.The supply lines and return line shall be Schedule 40 PVC, size as noted of
plans.
30. Supply and return lines shall be sleeved using ductile iron or encased in concrete
at the point of any drainage way crossing extending 5' on both side of the
crossing
31.Air/vacuum release valves shall be placed at the ends of supply and return
manifolds, and housed in plastic valve boxes, extending to ground level.
32. Return Pressure Assembly (if needed) shall be protected by an at grade valve
box.
33.The supply and return manifold shall be 1.0-inch schedule 40 PVC.
34. Each supply and return manifold shall have an air/vacuum release valve. The
air/vacuum release valves (AIRRELEASE1) shall be provided by American
Manufacturing Company, Inc.
35.The air/vacuum release valves and manifolds shall be protected by valve boxes
(DH-VALVEBOX) and easily accessible from the ground surface for
maintenance.
36.The supply manifold (ditto for return manifold) shall consist of one saddle (or tee)
per lateral connection, one ball valve, and one air/vacuum release valve. The
ball valve shall be placed at the inlet of the manifold such that the effluent will
pass through the ball valve prior to entering the saddles (or tees) (see design
detail). This ball valve will also be used for pressure testing the supply or return
mains at startup inspection. The saddles (or tees) shall be placed 4 to 6 inches
apart and, the air/vacuum release valve shall be placed at the outlet end of the
manifold. The air release valve shall be removable for use as a cleanout.
37.The Perc-Rite Pressure Compensating Dripline (08WRAM.6-24V) shall be
installed a minimum of 6 inches below natural ground surface (for sub -surface
systems, or at ground level for Surface Irrigation systems) on contour. The drip
line shall be installed on sub -surface systems with a chain trencher, or vibratory
plow. No heavy machinery shall be used in the drainfield area.
38. No trafficking in the irrigation application area.
39.The Engineer (and the Local Health Department, if applicable) shall be notified
48 hours in advance of intent to install dripper lines to arrange for inspection.
Five Bedroom Surface Drip
1719 Farrington Road
Chatham Co., NC Page 5 of 7

40. The drip emitters shall be placed 2 feet apart along the dripline. The emitters
shall be Netafim Pressure Compensating type and 0.61 gal/hr rated.
41. Driplines shall have a minimum 2 feet horizontal spacing from adjacent driplines,
or as indicated otherwise on the Drawings.
42. The Perc-Rite Pressure Compensating Dripline shall be connected to the supply
and return manifolds using Bioline Insert Adapters (BIOINSERT1 2X1 2), Female
Adapter SXT SCH 40, '/2" x'/2" (PVCPRFIP12X12), '/2" PVC Flex Tubing
(PVC12FLEX), and Bioline Repair Coupling'/2" (BIOCOUP).
43. The return manifold shall consist of one air/vacuum release valve, one saddle
(or tee) per lateral connection, one check valve, and one ball valve. The saddles
(or tees) shall be placed 4 to 6 inches apart and are preceded by an air/vacuum
release valve (see design details). A 1-inch brass check valve and a PVC ball
valve shall be placed following the last saddle (or tee) connection and the return
supply line. The air release valve shall be removable for use as a cleanout.
Five Bedroom Surface Drip
1719 Farrington Road
Chatham Co., NC Page 6 of 7

System Specification Summary
Daily Wastewater Flow 5 Bedroom
600 gpd
Septic Tank Size
1,500 gal min
Recirculation Tank Size
2500 al Two compartment -See Drawings)
Field Dose Pump Tank Size
3,500 gal
Gravity Sewer Line (Septic Tank to Recirc. Tank
+/+ 5 ft 4 in SCH 40 PVC
Primary Pretreatment Unit
State Approved Septic Tank
Secondary Treatment Unit If Required)
One EZ Treat 600 GPD Pod
Pretreatment Unit Flow Rating Max)
600 gpd (max); UV Disinfection: 10 GPM
Pretreatment Dose Method
Timer Controlled
Pretreatment Dose Volume
50 al/dose +/- 13.6 Gal/Min
Pretreatment Dose Duration
220 sec; or 3.67 minutes
Pretreatment Dose Frequency
72 doses/day
Dispersal Unit
American Perc-Rite ; or Equal
Average Daily Flow 100% Design Flow
600 gpd
Dose Method
Timer Controlled
Average Volume Per Dose
67 al/dose
Average Dose Frequency
9.0 doses/day Each Zone Cycled 3 times
Five Bedroom Surface Drip
1719 Farrington Road
Chatham Co., NC
Page 7 of 7

BK 2355 PG 1015
State of North Carolina
Department of Environmental Quality
Division of Water Resources
FILED
CHATHAM COUNTY NC
LUNDAYA. RIGGSBEE
REGISTER OF DEEDS
FILED Apr 06, 2023
AT 04:29:40 pm
BOOK 02355
START PAGE 1015
END PAGE 1016
INSTRUMENT # 02920
EXCISE TAX (None)
NON -DISCHARGE WASTEWATER SYSTEM WAIVER
AGREENWNT TO WAIVE SETBACKS AS REQUIRED BY
I5A NCAC 02T .0506(a), .0506(b), .0606(a), .0706(a) AND .1006(a)
1, William Foy _ (printed name), certify that I am a deeded owner or an
authorized agent of the property located at:
Address: 1727 Parcel No.: 9793-00-61-S91$
City: AM State: Zip Code: 27523 County: Cheth=
Furthermore, I certify that I am authorized to make decisions regarding this property, and that I do hereby
agree that the setback distances cited below be granted to the Applicant/Permittee listed on the following
page.
I understand, the setback requirements set forth in 15A NCAC 02T. For the parcel identified above,
I consent to the following reduced setbacks:
® WastewutcrIrri ationllntiltra[ion Setback to Pra erty lines
The required setback of 60 feet is reduced to 20 feet, thereby allowing wastewater effluent
irrigation or infiltration no closer than 20 feet from my property line.
❑ Wastewater Irri stio"rifiltration Setback to Places of Assembl -
The required setback of feet is reduced to feet, thereby allowing wastewater effluent
irrigation or infiltration no closer than feet from my residence(s) or place(s) of assembly.
® Wastewater Treatment and SIgrage Unit Setback to PE2flLdLLij39
The required setback of 50 feet is reduced to _25_ feet, thereby allowing the construction of
wastewater treatment and storage units no closer than _a feet from my property line.
❑ Wastewater Treatment and Storage Unit Setback to Places of Assembly
The required setback of feet is reduced to feet, thereby allowing the construction of
wastewater t a torage a closer than feet from my residence or place of
assembly.
Signature: Date:
9/7/1.1
m I+;ro' Will -AM Vo[Y
FORM: NDWSW 02-19 1714 �� � �� �o� Page I of t
A?Ex , N(- f- 1.5o

BK 2355 PG 1018
Applicant/Permittee: BIaCkSmith Ranch LLC
PennitNo.: Not Yet A5Signed
Address: 1719-Farrinaton Road Parcel No.: 7 - -
City: APax State: M Zip Code: 27523 County: Chatham
® COLOWC)
COUNTY
CAAW�
I, , a Notary Public for County, No. th ea.,
do hereby certify that —WI Mckwi 7Vpersonally appeared before me this day
7
and acknowledged the due execution of the foregoing instrument.
Witness my hand and official seal, this the day of M.&yr_K ,2.oZZ
SEAL
KAREN RODRIGUEZ ► FRMXDEZ
NOTARY PUBLIC
BTATE OF COLORADO
NOTARY ID 202uoagn
NIY COMMISSION EXPIRES DECEMBER 02, 210
Signature of Notary Public
My commission expires 121 D24 7 5
Once notarized, this form shall be recorded at the Register of Deeds in the county or counties in
which the described properties are located. A copy of the recorded waiver shall be sent to the
following address:
Division of Water Resources
Non -Discharge Branch
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
FORM: NDWSW 03-17 Page 2 of

Mate of North Carolina
Department of Environmental Quality
DWR Division of Water Resources
SINGLE-FAMILY RESIDENCE WASTEWATER IRRIGATION SYSTEM
Division of Water Resources OPERATION AND MAINTENANCE AGREEMENT
FORM: SFRWWIS-O&M 09-18
Permit No. WQ0044549
County: Chatham
Permittee: L r 1 C (i.e., all deeded property owners)
The Permittee agrees to operate and maintain the single-family residence wastewater treatment and irrigation system as
follows:
I . Inspect the septic tank annually, and pump out solids as needed.
2. Inspect and clean the septic tank effluent filter annually. (if applicable.)
3. Inspect the tablet chlorinator weekly. Add wastewater grade chlorine tablets (e.g., calcium hypochlorite) as needed.
Swimming pool grade chlorine tablets are not acceptable. {if applicable)
4. Inspect the ultraviolet disinfection unit weekly. Clean or replace the lamps and quartz sleeves as needed. Qf
applicable)
$. Inspect all storage tanks, pumps, and alarms monthly. Remove the floating scum layer in all pump/storage tanks
when pumping the septic tank solids out.
6. Inspect the spray irrigation system monthly to verify: proper operation of the spray heads; that there are no leaks;
that vegetative growth does not obstruct the spray heads; that the irrigated wastewater is not ponding in or running
off the designated irrigation area; and that there are no objectionable odors. (if applicable)
7. Inspect the drip irrigation system monthly to verify: proper operation of the drip lines; that there are no leaks; that
vegetative growth does not obstruct the drip emitters; that the irrigated wastewater is not ponding in or running off
the designated irrigation area; and that there are no objectionable odors. (if applicable)
8_ Maintain a set of Division -approved engineering plans and specifications.
9. Pay the required annual fee.
10. Request renewal of this permit on Division -approved farms no later than 180 clays prior to expiration.
11. Sign and provide a C. hange~ of (Avnership appl ication to any future owner of the single-family residence wastewater
treatment and irrigation system for their completion and submission to the Division of Water Resources.
We understand the above r ents and to these terms as part of the issued permit.
Signature: l i Date:
Signature: Date:
! i !■ 1•
Signature: Date:
All deeded provertv owners shall sign this D ration and Maintenance A eement
FORM. SFRW W'IS-O&M 09-18 Page 1 of 1

1/212021, 7 52 12 AM
Army Corps Land
INSTRUCTION PLANS FOR A WASTEWATER TREATMENT
SURFACE DRIP IRRIGATION DISPOSAL SYSTEM
FOR A FIVE BEDROOM SINGLE FAMILY RESIDENCE
1719 FARRINGTON ROAD (CHATHAM CO., NC)
Chatham Countv GIS Map
1
Y
3
PROJECT pTE
1719 FA41NGTOI'
e
K
O
- US 64-.r 1r1�I 7
Q
�7
K
O
U1�
/
VICINITY
1:102,317
MAP 0 3500 7.o00 000n
,. r�ao[ 1.uuo2'ry taiee 1�on ,.. o.Qouwr...n
1. HCGS Monuments found within
2000' of property. o Ly, d51.1.y
2 This project is located within aw 66 622 P
special flood hazard area . , A", D
3. Area calculated by coordinate
geometry.
4- ALI lines surveyed by Survey
Carolina, PLLC are indicated
R D by baLd lines. All tines not
—eyed by Survey Carolina,
PLLC are indicated by dashed
tines.
5 No attempt was made by this
rvey to Locate all - New Tract 1
underground utilities nor any Y 3.382 Acres
other easements that w Ld be- 3 ass Aver nea, of Rlw
revealed by a title search. """"'
6 Watershed: Critical Area
7 Zoning: R-1
B. AKPAR:1 655
9 Flood Map: 3710978200K
10.Tract 1 It 3 will be accessed
through the new 10,379 Sq FT
Access Easement. Tract 2 is
e9sed by Frontage on sR — 1727 FARRINGTON \RD
aK ' ti
C
M-
5 t
'NOTES:
1) SITE DATA WHICH INCLUDES PROPERTY BOUNDARIES, TOPO, UTILITIES, ROADS, AND OTHER SITE
FEATURES WERE PROVIDED BY A SURVEY PREPARED BY SURVEY CAROLINA, PLLC; ASHEBORO, NC
(SURVEYORS) AND ARE SHOWN TO DISPLAY GENERAL SITE CONDITIONS AND ARE PRESUMED TO BE
ACCURATE LOCATIONS OF PROPOSED STRUCTURES (HOUSES, DRIVEWAYS, AND WELLS) ARE SUBJECT
TO MODIFICATION IF WITHIN THE CONTEXT OF APPLICABLE RULES FOR SETBACKS.
2) ALL SEPTIC SYSTEM COMPONENTS TO INCLUDE TANKS, PUMPS, MANIFOLDS, AND SYSTEM
CONFIGURTION ARE APPROXIMATE AND AS SUCH NO SPECIFIC ACCURACY EITHER VERTICAL OR
HORIZONTAL IS IMPLIED SUITABLE SOILIDISPOSAL APPLICATION AREAS HAVE BEEN GPS LOCATED BY
SOIL & ENVIRONMENTAL CONSULTANTS, PA.- [phone]; RALEIGH, NC (SOIL SCIENTISTS).
2
3) PROPERTY AND EASEMENT BOUNDARIES SHOWN ON THIS SITE SKETCH ARE APPROXIMATE AND
ARE NOT INTENDED FOR LOCATING PROPERTY OR IDENTIFYING PROPERTY OR EASEMENT CORNERS.
THIS IS NOT A SURVEY.
OWNER: Blacksmith Ranch, LLC
CONTACT: William Foy, Pres.
1719 Farrington Road
Apex, NC. 27523
919-219-6233
J. n.n W r—AL —W 00 M ,rf3u W.,..� ra,r�Rsrowss Legend
urvuywwunder my ropenfabn.nd llrc bAbxhiyfnhm,MiYn,Wa wells
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nI CWa N aurv+F.r
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FRID p.Ya3 202t - S .
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OWRPa CUMFICATmx OF xOH W1lliti- Ie1T
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DILI
¢M1,f Blacksmith Ranch LLC
1719 Farrington Road
Apex, NC 27523
j ESuhdieisfon Survey For:
William Foy
New Hope Town ship Chatham County
North Carolina April 7, 2021
Deed Boak:2090 Pg:211
Plat Baok:87 Pg:386
Plat Book: 97 Pg: 346
Scare: 1"= 60 US Survey Feet
Bar Scale:
= 60 12u 1.
__ri _err —� -:
SURVEY CAROLINA, PLLC
154 S. Fayetteville St, Suite B, Asheboro, NC 27203
=numhn: 136 M5,11W0 1
F. II ttta'1'dsu eycarollna com
Rum+. 'Pt156 1'
n,nwr�x alaTr '
S` 20" Survey Carolina, Pit, Job K: 12144
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NCDENR PERMIT WO #0044549 SFR
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9810
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ii, � , MdRAFE)

DRIP ZONE
& LATERAL INFORMATION
Run #
Run, Ft.
Lat, Ft.
Total, Zone
1
95
Z
O
N
E
0
N
E
2
94
3
93,282
4
91
5
89
6
Bar
268
7
87
8
85
9
84
256
10
82
11
78
12
75
236
13
73
14
70
1s
67
210
16
64
1711
59
is
56
19
51
20
48
278
21
43
22
40
23
36
24
32
25
28
26
23
27
19
28
15
29
12
30
10
31
7
265
1795
Z
0
N
E
411
y25
Ly7
T
W
O
42
98
292
43
97
44
97
45
97
289
46
96
47
96
48
96
286
49
95
so
95
1761
51
95
283
Z
0
N
E
T
H
R
E
E
52
94
53
94
5a
94
280
55
93
56
93
57
92
274
58
91
59
91
60
91
271
61
90
62
90
63
90
268
64
89
65
89
fib
89
265
67
88
68
88
1641
TOTALS: 5197 FT.
AVG. SPC'G: 3.82 FT.
J[3) 2" SCnj *11 d`
U PPLY LI N S (3
�• �Us� �qy 2oM � ► �•.
r ❑
w
m
proposedoe G2�
/Bar & 2 /
dr oor� �Dwell' g
OUT
- 16' 20'
WA
.0
(ip
k SUPPLY,
aNg
4Q
I7IR RAND (OR EQUIV.)
E 1 G AROUND ALL
2R GAT104
AREAS
IST'G
.LATERAL NUMBER (T
50'R�QPERT LINE SET
SCH 4
_INE (30" BURS
Y.
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yT'A
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7*4h '0,��; 44 ids `fb ,�
9 �•�
0
1 �oi':': �-
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TF4��i
■
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= 1" TOP FEED
MANIFOILD (TYP.)
1/2" PVC FEEDER LINES (TYP.)
OA D ---�
171g ARRI
■■ ■■■ice■■ p■ �vr,■j�"+.=■n
1-1 /4' E P Down 4" N 89 34'26" W 184.05 Total
7 30' Private Ac ess Easement
/SCALE A' = 30' I
30' /15' 0
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Soil Amendment Notes: The surface drip application area shall receive
iminimum of 6 inches of fill to be placed on top of the existing soil
surface so that the vertical separation to prohibitive soil characteristics
its met. The fill material must have a soil texture of sandy loam in order
to establish vegatative cover and must contain no more than 10% (by
volume) fibrous organics, or other debris. The fill material and the
existing soil shall be mixed to a depth of six inches below their
interface. All heavy vegatative cover and organic litter shall be remove
from the existing soil surface before fill material is added. The side
-slope of the fill shall not exceed a rise to run ratio of 1:4. The fill area
-shall be constructed as to shed surface water and stabilized with a
:sustainable vegatative cover.
Grass Species: Tall Fescue, Ry, or Bermuda @ 100# per Acre
Overseed 50# per Acre with Tall Fescue each Fall until well established.
44/
Apply Lime and Fertilizer according to test; or, apply 400# per Acre of
1000# 10-10-10Fertilizer. Mulching
Pulverized Lime and perAcre of
application shall be 4000# per Acre of Wheat Straw, or as maybe
adjusted by visual inspection. Anchor Mulch as needed by tacking with
�y
L`
(ip `
T�D (OR EQUIV.)
FE I AROUND ALL
IRR GAT AREA
:IST'G� ,
AVE �
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44
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170
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9810

E-Z TREAT POD MODEL 600 -- 6„ BACKR
FREE OF EBRiS
FIN. GRA E
12..
1-1/2" AA. SUPP €SINE
4" . RETU i_ EXISTING GRADE
-- LINE
SECTION THRU EZ TREAT POD
NTS N
5/4 TREX BOARD Z
TYPICAL
EFFLUENT FILTER - 1` 3/4"0 RECIRC O
`v
4" SERVICE LINE FROM FACILITY
10,
SEPTIC —FLOW
24" E-Z SET RISERS
NOTE TWO ACCESS
RISERS SHOWN CAN
BE COMBINED TO A
SINGLE 30" DIA
'_ SET BYPASS VALVE
24"0 E-Z SET RISER
WITH COVER.
20 TURBINE -PUMP
FIN. GRADE
4" PVC TEE
4" PVC END CAP NOTE: DO NOT
GLUE ONTO RISER PIPE DRILL 1/4"
VENT HOLE IN CAP
4" PVC RISER PIPE - EXTEND
- — ABOVE BOTTOM OF TANK
LID
�4" FROM FILTERS
4" TO FIELD DOSING
TANK
-E-Z SET BYPASS VALVE
- ALL TANKS REQUIRE A
6" THICK STONE BASE
SECTION THRU RECIRC TEE
24"0 E-Z SET RISER WITH 24"0
COVER (TYP) (NP)
OFnONAL
CARBON FILTER
(IF
4„ REO. PER LOCAL
h-�\ UV UNIT Cam
DOSING
EFFLUENT LINE TO 4" SCH 40 PVC BOTTOM
CONTROL PANEL FOR EZ TREAT L�LOW�TVREATED
1 FI D DOSE TANK CONNECTION OF TANKS
I" DRIP FILTER BACKWASH/FIELD FLUSH RETURN FROM DRIP HYDRAULIC UNIT
SEPTIC TANK RECIRC. TANK FIELD DOSE TANK
NC DHHS APPROVED 2500 GAL. PUMP TANK . NC DHHS APPROVED 3500 GAL. PUMP TANK
NC DHHS APPROVED 1500 GAL. SEPTIC TANK PT-2103 OR EQUAL PT-2105 OR EQUAL
ST-390 OR EQUAL
PLAN
NTS ALARM LIGHT
FIN.GRADE: ELEV. "A" (SEE
TANK ELEVATION
SCHEDULE) 314" BALL VALVE
--CLEAN-OUT -24" 0 E-Z SET RISER
(TWITH COVER
YPj (TYP
IN V.I w9 IN OU
11
EUET_"C"
NOTE: FIELD
VERIFY PRIOR 30"0 E-Z SET RISER WITH COVER.
TO ORDERING 24"0 E-Z SET RISER WITH COVER.
RISERS 6" MIN., 12"/
MAX.
FIN.GRADE: ELEV. "A"
- SEPTIC TANK
1500 GALLON SEPTIC TANK
STB-390
SHOAF PRECAST CONCRETE, OR EQUAL
NOTE: POWER TO 24"0 E-Z SET RISER
HIS PANEL IS 230 VAC WITH COVER (fYP)
CONTROL PANEL (LOCATED
WITHIN 10-FEET OF TANKS)
FIN.GRADE: L
UV DI51N FE.CTIOy UNIT
ELEV. "A" J MODEL i2 SET UY 1000-5
OR APPROVED EQUAL
PG�
SE�,Ct a i<KI MF
C>
-
-- - -
wv. IN ELEv
"
PUTTER VALVE
4"PVC FROM BYPASS -
VALVETO W UNIT
EFRAIENF
EMERGENCY SfOSIRGE T IS
FILTER
PER
(SIZEDDESIGN
COMPARTMENTA RFU J DOSE TANK
BOTTOM
aNNE=
DESIGN
ODSE ENA!--G'+IS'
4064 GALLONS
TANKS
IWlTH 4"SCH 40 PVC
9ZrLE WALL �96'
FLOW)
I OT {9.42']
AND WATER -TIGHT
BOOTS
TiIVE 600 GAL MIN
COMPARTMENT
FLOOR= ELEV. "Gy
112 HP, I ISV, 20 GPM — � L.. 6" STONE BASE
DOSING
EPUMP FOR RECIRC. & STORAGE OR EQ AL)
DOSING FZ TREAT
POD NOT SHOWN 2500 GALLON RECIRC PUMP & STORAGE TANK
PT-2103 +/_ 44 GALS PER INCH
SHOAF PRECAST CONCRETE, OR EQUAL
SECTION VIEW
NTS
EMERG STORAGE VOL
4064 GALS (USING BOTH TANKS)
Ni�TER A%RI�Qr
PEAK ENABLE= ELEV- J" G
36" MIN
RISER WITH
1 1 /2" SCH 40 PVC
SUPPLY LINES -7
DISPOSAL FIELD
FOR DRIP 1 1/4" SCH 40 PVC RETURN LINE'
d
CONTROL PANEL FOR DRIP
-3 ZONE DRIP HYDRAULIC
FILTER & VALVE UNIT
(REFER TO SITE PLAN FOR
NUMBER OF ZONES)
RAIN SENSOR (IRRIGATION CUT
OFF); MINI-CLIK, RAIN-CLIK,
HUNTER INDUSTRIES, OR EQUAL
l4 x 4"
TREATED POST
DRIP CONTROL PANEL
WITH ALARM
.CONDUIT FOR PUMP
FIN.GRADE: ELEV. "A'
TO DISPOSAL
ELEV."G" WEIGHTED MERCURY FLOAT FLOOR= ELEV. "K"
Sw
FIELD DOSE TANK
3500 GALLON PUMP TANK +/- 47 GALS PER INCH
PT-2105
SHOAF PRECAST CONCRETE, OR EQUAL
TANK ELEVATION SCHEDULE
ELEV. "A"
266.00
262AC
262.2(
262.1C
261.8--
263.(X
257.8--
257.5(
257.8--
258.82
256.0(
ELEV."B"
ELEV. 'IC"
ELEV.I'D"
ELEV. "E"
ELEV. "F"
ELEV. "G"
ELEV. "H"
ELEV. "I"
ELEV. "J"
ELEV. "K"
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4" RISER PIPE I o
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j PUMP CURVE —
Z
4„EP c" FOR DRIP DOSING
�a
EUTLET� 4„ INLET 15 GPM TO 25 GPM
a
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240 Q
230 5- Z
220 0 w X
210 =
200 (� i 0 N
1s0 ° v' U
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170 m 0
v 160 USE THIS PUMP U w Z Z 150 (n
140 o
130 W U_ U
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= 110 N ?� ^ _
ILIV L-AMF a 100
� a
0
90 ~ �a 2 V
80 MIN. OPERATING '6 o
707 CONDITONS: � a J
60 23 GPM @ 133' TDH
50 W
UNLESS OTHERWISE SPECIFIEDl I NAME DATE = T n ri T = 40 1"`�•
DIMENSIONS ARE IN INCHES DRAWN I v �J 1
TOLERANCES 30
FRACTIONAL ± CHECKEI TITLE 20
ANGULAR MACH ± BEND '- ENG APPR.
TWO PLACE DECIMAL ± C)
THREE PLACE DECIMAL ± I MFC APPR, 1 UV-101 SINGLE LAMP 10 . r}..4 � 0 0
INTERPRET GEOMETRIC Q A. WJ Q0 I
F=;cigEY MI) CCN"lK Y—?I TOLERANC[NG PER COMMENTS O 2 8 16 24 32 40 r —'z I- 00
�` `NfO TF F7NTAl ` I FLOW RATE SIZE �W� NO REV 4 12 20 28 36 44 P4 o N�
D.AW' A V-roLFP-`P I Gallons Per Minute c� F8 ra>vurn[r�`Nrz 10 GALLONS (� a, z 1
liLCllCifOk IN eyµ:,',c c• a �„H-.• FINISH
A'1T-.IOUr THE ti'F;'1E�: .-."-`-: NEXT ASSY LISEL ON
-- MANFAET�: A MINUTE = 6'
R-r1iEITE' APPLICATION DO NOT SCALE DRAWING SCALE 1 c0 '1: = ICNT SHEET I OF 1
5 4 C 1 cAwrry Lam. PCILQW91c
i i' • O)
60" LONG 'T" POSTS ?D N p
FIBERGLASS OR PAINTED STEEL w iO-I 0
SET POSTS @ +I- 25' SPACING r ` (�J
14 GA_ HI -TENSILE STEEL WIRE �'°° -- " y v
1�
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TJI i fa I:�y,�a....r��+�
it f f +1- 24' BURY - -- ■••'•�•••`� `` C;AR
20
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DETAIL OF FENCING REQUIRED AROUND 9810 •
17
DISPOSAL AREA +/ ��
(NDT M NGLnIlk
PUMP CURVE
EZ TREAT FILTER DOSING> �NGI�IEF'4tia��r

IT]
Depth
Supply line di
Is below frost
STANDARD RESIDENTIAL DRIP SYSTEM DETAILS Imo,
TOP FEED MANIFOLDS
USE ON ALL SITES WITH A DISCERNIBLE SLOPE
TO CONTROL DRAIN DOWN FROM UPPER LATERALS
11 TO LOWER LATERALS AFTER PUMP SHUTS OFF.
AIR RELEASE 5uppplyy
12" VALVE ManifOTd
Cover
Depth
f� i
Field 1�3plY 7I2' SuPp� Ret T pn
++ ; **.� ► � to PRESSURE
+ ► DRIPPERTUBING
/2,. PVC
Elevate loops
Install insulation
for shallow systems
in freezing climates
Normally Open
Supply Valves
Backflush Valves
1 �A" Supply From
Pump Tank
1/2" PVC
FLEX
MAIN SUPPLY PIPE
BELOW FROST LINE
("V M
kk �• FINISHED GRADE '
zi - INSTALLATION DEPTH
INSTALLATION DEPTH
Air Release Valve
above highest drip
run in that zone.
Top Feed on sites
with dlscemible slope.
RESIDENTIAL
AIR RELEASE
VALVE
COMMON
RETURN PIPE
Patent No. 5,984,574B
AMERICAN MFG. COMPANY
TWO -FILTER - 15 GPM
HYDRAULIC UNIT
Flowmeter
Disc Filters
Normally Closed
Field Flush Valve
12' HYDRAULIC
U
TUBING
FINGER SCREEN—�
w/ 6mm 90' ELL
6mm 90' ELL.
PRESSURE
RELIEF
RPA CONNECTS PRESSURE
SEPTIC
TANK
RETURN
ALUMINUM BASE
DRIPFlELD
Install insulation COMMON RETURN
for shallow system
irifreezingrilmates RETURN PRESSURE ASSEMBLY (RPA)
S. diagram above
NTS
NOTE:
IN THE EVENT THE DRIP ZONES ARE
A DISCERNIBLE VERTICAL ELEVATION ABOVE
THE HYDRAULIC UNIT, INSTALL A "RETURN
PRESSURE ASSEMBLY." THE ASSEMBLY
IS TO BE USED TO PREVENT THE RETURN
LINE FROM DRAINING AFTER OR DURING A
DOSE. REMOVE THE ZONE RETURN CONNECTION
AND REINSTALL A SHORT 1" NIPPLE IN THE
RETURN VALVE. INSTALL ASSEMBLY AS SHOWN
ABOVE. THE HYDRAULIC TUBING PROVIDING
PRESSURE FOR THE REST OF THE UNIT MUST BE
PLUGGED AND THE NEW TUBING FROM THE
ASSEMBLY CONNECTED TO THE PRESSURE SIDE
OF THE SOLENOID.
o�' 1 %" Return To
Septic Tank
1" Normally Closed To Return Pressure
Zone Valves Assembly
DRIPPER
LINE
w
1 /2" FLEX
PVC (4' typ.
PVC RIP
ADAPTER
RAM INSERT
ADAPTER
6" MIN
r SEPARATION'S
BURIED DRIP LOOP CONNECTION
NTS
DRIPPER LINE
FINISHED GRADE
PVC PIPE- #s
PVC TEE
EARTHEN DAM IN TRENCH
TO PREVENT FLOW ALONG
FLEX PVC LOOP
DRIPPER LINE SECTION DETAIL
NTS
SIDE FEED OPTION
FLAT SITES ONLY.
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9810 •
■
-•. �, NGINE�

SITE CLEARING GUIDELINES
General guidelines for preparing/clearing a site for installation of an American Mfg. "Perc-Rite@" Drip System:
GENERAL REQUIREMENTS:
The preservation of the original structure of the soil in the absorption area is essential to maintaining the percolative capacity of the soil. No activity other than the construction of the system is
permitted within the absorption area. On sites where a majority of the vegetation needs to be removed, care must be taken to minimize the impact on the soils natural permeability. There shall be
no cutting, filling, or storage of material on or within 20' of the adsorption area. Site clearing and preparation shall be performed by the installation contractor for the wastewater dispersal system.
The absorption system is not to be constructed during periods of wet weather when the soil is sufficiently wet at the depth of installation to exceed its plastic limit. The plastic limit is exceeded when
the soil can be rolled between the palms of the hands to produce threads 1/8 inch in diameter without breaking and crumbling.
After installation of the dispersal system, or if after clearing installation is not to be performed for 60 days, seed the area liberally with native grasses. The standard Department Of Transportation
specification is acceptable consisting of perennial rye and fescue. At all times protect the installation area from erosion. Local codes shall apply for best management practices to control runoff.
SHALLOW INSTALLATIONS (surface to 8"):
Clearing and removal should be by hand with minimal machine assistance and under optimum soil moisture conditions. Track machines are preferred to those with rubber tires and should only be
used around edges of installation. Soil moisture conditions need to be confirmed prior to beginning clearing and system installation by the soil scientist of record.
LARGE SCALE INSTALLATION TESTING:
Larger systems typically do not have water available for zone installation testing on a timely manner. It is desirable to water test an installed zone while the supply and return manifold header
ditches are exposed to better inspect for leaks. In order to facilitate site and equipment protection and erosion control, the installation contractor shall provide sufficient water and the means to
deliver and monitor the water to both flush and leak test each zone or subzone prior to backfill. The flushing volume shall be five times the volume of the piping network being flushed. The flushing
velocity shall be in excess of 2-1/2 feet per second. The leak testing volume shall be at least 3 times the volume of the pipe. The leak test shall continue until steady state flow is achieved and the
flow rate is within 6% of the design flow rate or as approved by the manufacturer or engineer. After successful testing and inspection the supply and return pipe connection points shall be
sealed and protected from dirt and debris from entering prior to final connection.
General Construction Notes
American Manufacturing "Perc-Rite@" Drip
1. All installation and construction techniques shall conform to state and county codes pertaining to on site sewage systems and the permit for this site.
2. The installation of this system shall be in accordance with specifications and procedures as supplied by the Manufacturer of the equipment.
3. The drip tubing shall be installed using a vibratory plow, trencher, or by hand.
4. All tubing to be installed along contour.
5. All PVC pipe and fittings shall be PVC SCH 40 Type 1 rated for pressure applications. All glued joints shall be cleaned and primed with purple (dyed) PVC primer prior to being glued.
6. All cutting of PVC pipe, flexible PVC and dripper tubing of size 1 1/2" or smaller shall be accomplished with pipe cutters approved by American Manufacturing Company, Inc. No sawing of PVC,
flexible PVC or dripper tubing of size 1 1/2" or smaller allowed.
7. All PVC pipe, flexible PVC and dripper tubing in the work area shall have the ends covered with duct tape to prevent construction debris from entering the pipe. Prior to gluing, all joints shall be
inspected for and cleared of any construction debris.
8. All automatic valves (zone valves & field flush return valves) shall be installed with isolation valves, bypass valves, and disconnects (i.e. unions, flanges) for manual field operation during field
maintenance events. All valves must be provided with at -grade access.
9. Drain field supply and return lines and manifolds to be installed at adequate depth to prevent freezing. Horizontal spacing between the dripper lines and the installation depth to be as specified.
10. No activity on drain field area other than minimum required to install system. Do not park equipment, drive large equipment over or store materials on drain field area.
11. No wet weather installation is permitted.
12. The contractor shall be certified by American Manufacturing Company, Inc. to install this type of system and shall hold a pre -construction meeting with the individuals responsible for soil evaluation,
permitting and inspections prior to site work beginning to insure protection of the site conditions and to ensure the system is installed according to design.
13. If site conditions are determined to require the installation of the system to deviate from these plans, all work shall stop immediately and the designer shall be notified. Any ongoing work shall be
at the sole responsibility of the contractor.
14. All force mains shall be tested for leaks prior to drip tubing installation and prior to system startup, at 60 psi for 2 hours without a drop of 5 psi. Uncovered force mains shall be visibly inspected for
leaks. If a leak is suspected in covered force mains then the force main shall be re -tested at a minimum pressure of at least 30 percent above the design operating pressure, for at least 30 minutes.
There shall be no discernible leakage.
15. ASD15 & 25 Hydraulic units to be placed on a bed of gravel for drainage.
16. If standing groundwater is a problem a screened drain to daylight is required.
DESIGN PARAMETERS & USAGE AGREEMENT:
Every attempt has been made subdue adverse conditions of this site. Therefore, the designer and/or engineer shall not be held liable for:
1. Improper installation;
2. Improper or lacking operation and maintenance;
3. System abuse;
4. Improper use;
5. Any activity conflicting with the guidelines setforth in the manufacturer's operation and maintenance manual;
6. Any activity conflicting with 15A NCAC 18A .1900 rules and applicable wastewater system approvals;
7. Any activity outside of the designer's and/or engineer's purview.
Acceptance and use of these documents constitute agreement with the following:
1. In no case shall the liability to the designer or engineer for damages exceed the amount recived by the designer and/or engineer for professional services rendered.
2. In no case shall the designer and/or engineer be held liable for activities outside of his or her's purview.
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GENERAL NOTES. (NOTES 16-19, & 21 APPLICABLE ONLY TO SURFACE SYSTEMS
1, ALL INSTALLATION AND CONSIRUC"PDN TECHNIQUES SHALL CONFORM TO ALL STATE DEPARTMENT
OF ENVIRONMENT AND NATURAL RESOURCES, DIVISION OF WATER QUALITY REGULATIONS, COUNTY
CODES, AND STATE BOARD OF HEALTH SEWAGE HANDLING AND DISPOSAL REGULATIONS, PERTAINING
TO ONSITE SEWAGE SYSTEMS AND THE PERMIT FOR THE SITE.
2. THE INSTALLATION OF THIS SYSTEM SHALL BE IN ACCORDANCE WITH SPECIFICATIONS AND
PROCEDURES AS SUPPLIED BY THE MANUFACTURER OF THE EQUIPMENT.
3. ALL PVC PIPE AND FITTINGS SHALT_ BE SCHEDULE 40, TYPE 1, RATED FOR PRESSURE
APPLICATIONS. ALL GLUED JOINTS SHALL BE CLEANED AND PRIMED WITH PURPLE (DYED) PVC.
PRIMER PRIOR TO GLUING,.
4, ALL CUTTING OF PVC PIPE, FLEXIBLE PVC, AND DRIPPER TUBING SHALL BE ACCOMPLISHED WITH
PIPE CUTTERS APPROVED BY THE MANUFACTURER- NO SAWING OF PVC OR DRIPPER TUBING WILL BE
ALLOWED.
5. ALL PVC PIPE, FLEXIBLE PVC, .AND DRIPPER TUBING IN THE WORK AREA SHALL HAVE THE ENDS
COVERED WITH DUCT TAPE TO PREVENT CONSTRUCTION DEBRIS FROM ENTERING THE PIPE, PRIOR TO
GLUING, ALL UOINTS SHALL BE INSPECTED FOR, AND CLEARED OF, AND CONSTRUCTION DEBRIS-
6, NO WET WEATHER INSTALLATION WILL BE ALLOWED
7, NG ACTIv TL SHALL TAKE PLA_CF ON THE DE FfI Lp AE4EA 01HER THAN THE MINIMUM
REQUIRED TO INSTALL THE SYSTEM. DO NOT PARK EQUIPMENT, DRIVE LARGE EQUIPMENT OVER, OR
STORE MATERIALS ON THE DRAIN FIELD SITE.
8- HORIZONTAL SPACING BETWEEN DRIPPER LINES SHALL BE AS SPECIFIED OR SHOWN. DRIPPER
LINES SHALL BE PLACED ON CONTOUR
9, PRIOR TO SIARTUP OF THE DRIP DISPOSAL SYSTEM, THE AIR RELEASE VALVES SHALL BE
REMOVED AND EACH ZONE IN THE SYSTEM SHALL BE FLUSHED AS FOLLOWS: A) USING .AN
APPROPRIATE LENGTH OF FLEXIBLE PVC PIPE WITH A MALE FITTING ATTACHED TO THE AIR RELEASE
CONNECTION TO DIRECT THE FLUSHING 'HATER AWAY FROM THE CONSTRUCTION AREA; B) FLUSH THE
ZONE WITH A VOLUME OF WATER (CLEAN WATER TO BE PROVIDED BY THE CONTRACTOR) EQUAL TO
1.5 TIMES THE VOLUME OF THE PIPES FROM THE CENTRAL UNIT TO THE AIR RELEASE VALVE; C)
REPEAT THIS PROCEDURE FOR EACH ZONE (THE FLUSHING OF THE SYSTEM IS ACCOMPLISHED BY
MANUAL OVERRIDE of THE CONTROL PANEL BY THE MANUFACTURER OR ENGINEER).
MAINTENANCE SCHEDULE
ITEM FREQUENCY
TASK
SEPTIC TANKS 3 - 4- MONTHS
CHECK SOLIDS ACCUMULATION,
IN/EXALTRATION, BAFFLE DAMAGE,
BLOCKAGES. CHECK THE FILTER.
3 - 5 YEARS
PUMP SEPT-AGE IF REQUIRED
PUMP TANKS 3 - 4 MONTHS
CHECK SOLIDS ACCUMULATION,
PUMP OUT SOLIDS IF REQUIRED.
CHECK IN/EXFILTRATION. CHECK
FOR PROPERLY OPERATING FLOATS,
EQUIPMENT & CONTROLS
FORCE MAINS &
SUPPLY MANIFOLDS
FIELDS
MEDIA FILTER
GENERAL NOTES:
___ SEEDING SPECIFICATIONS I
APPLIES TO ALL DISTURBED AREAS OUTSIDE DRIPPER FIELD
SPECIES
TALL FESCUE
SERICEA LESPEDEZA
KOBE LESPEDEZA
PENSACOLA BAHIAGRASS
m
RATE (LB/ ACRE)
100
30
10
50
CHECK HIGH WATER ALARM
SEEDING NOTES
I. AFTER SEPTEMBER 1 USE UNSCARIFIED SERICEA SEED-
3 - 4 MONTHS
CHECK FLOAT CONTROLS & ALARMS,
? +,HERE A. NEAT APPEARANCE IS DESIRED, OMIT SERICEA AND INCREASE KOBE TO 40
FOLLOW MANUFACTURER'S SERVICE
L8 ACRE.
REQUIREMENTS.
i. OVER -SEED 50 LB/.ACRE OF TALL FESCUE EACH FALL, UNTIL WELL ESTABLISHED.
6 MONTHS
CHECK FOR LEAKS & RE -MEASURE
NURSE PLANT
BETWEEN APRIL 15 AND 15, ADD 10 LB/ACRE GERMAN MILLET OR 15 LB ACRE
FLOW IF NECESSARY. CHECK FOR
.AUGUST
SUNDANGRASS PRIOR TO MAY 1 OR AFTER AUGUST 15, ADD 40 LB/ACRE RYE ( RAIN)-
EXPOSED PIPE.
FALL IS BEST FGR TALL FESCUE ANC, LATE WINTER FOR LESPEDEZAS OVERSEEDING OF
KOBE LE5PEOEZAS t7VER •liE FALL SEEIF0 TALL FESCUE IS VERY EFFECTIVE USE
3 - 4 MONTHS
CONTROL VEGETATIVE GROWTH FOR
UNHULI_E0 13ERMUUAGRRSS SFED IN PALL -
PROPER INSPECTIONS. CHECK FOR
SAIL AMENPM17NTS
EROSION, PONDING OF WATER,
APPLti LIME AND FERTILIZER 4CCORUING TO TESTS, OR APPLY 4,000 LB/ACRE GROUND
SURFACING OF EFFLUENT.
AGP,ICI.A TORE WMESTQNE AND 1,0.00 LB/ACRE 10-10-10 FERTILIZER,
6 MONTHS
MEASURE FLOW BY TIMING DRAW
MULCH
APPLY 4,000 .5,/ACRE GRAIN STRAW, OR EQUIVALENT COvER OF ANOTHER SUITABLE
DOWN IN THE PROCESSING TANK.
MULCH1Nu MATERIAL. ANCHOR MULCH B)' TACKING WITH ASPHALT, ROVING OR NETTING -
CHECK FOR PONDING/CLOGGING
NETTING IS THE PREFORED ANCHORING MMOP ON .STEEP .SLOPE'S.
12 MONTHS
SAMPLE DISCHARGE WASTEWATER.
MAINTENANCE
REF£RTILIZE IN THE SECLDIND YEAR UNLESS GROWTH IS FULLY ADEQUATE. MAY BE MOWED
DRAW LABORATORY SAMPLES AND
ONCE OR TWICE A YEAR. BLJT MOWING 15 NOT NECESSARY. RESEED, FERTILIZE AND
REPORT TO AGENCIES.
MULCH DAMAGED AREAS IMMEDIATELY.
GENERAL NOTES:
10. IF EXISTING SEPTIC TANKS ARE USED, THEY SHALL BE PUMPED OUT BY A COMMERCIAL SEPTIC I. HOUSING AND OTHER STRUCTURES AS MIGHT BE SHOWN ON THESE PLANS ARE BASED UPON
TANK CLEANER. AFTER THE TANK IS EMPTIED, IT SHALL BE RINSED, PUMPED, AND REFILLED WITH
CLEAN WATER. DEBRIS IN THE SEPTIC TANK MUST BE KEPT TO A MINIMUM AS IT COULD CLOG THE INFORMATION AVAILABLE. LOCATION OF DWELLING AND STRUCTURES ARE SUBJECT TO CHANGE
DISK FILTERS DURING STARTUP. DISK FILTERS ARE NOT BACK -FLUSHED DURING STARTUP AND ANY DURING CONSTRUCTION. PUMPS, HEAD LOSS CALCULATIONS, ETC. MAY NEED TO BE RE-EVALUATED
CLOGGING COULD CAUSE INCORRECT FLOW RATE READINGS FOR THE CONTROLLER. IF UTILIZED, IF ALTERATIONS TO SUCH LOCATIONS ARE REQUIRED.
SEPTIC TANKS MUST BE WATERTIGHT.
11. A LEAKAGE TEST SHALL BE PERFORMED ON THE SEPTIC AND DOSING TANKS TO INSURE THAT 2. LAYOUT OF THE APPLICATION AREA IS BASED ON FIELD DELINEATION OF SOILS AREA PERFORMED
ANY INFILTRATION/EXFILTRATION OCCURS AT A RATE THAT DOES NOT RESULT IN GREATER THAN BY SOIL & ENVIRONMENTAL CONSULTANTS, P.A. ANY CHANGE IN LAYOUT, BY THE SYSTEM INSTALLER,
DROP IN WATER LEVEL IN A 24-HOUR PERIOD. OUTSIDE OF THIS AREA WILL NEED TO BE APPROVED BY THE SOILS CONSULTANT AND THE ENGINEER.
12. IF TREES ARE TO BE REMOVED FROM SITE, CUT STUMPS FLUSH WITH GROUND. REMOVE
CUTTINGS BY HAND,
13. THE CONTRACTOR SHALL BE CERTIFIED TO INSTALL THIS TYPE OF SYSTEM BY THE
MANUFACTURER AND SHALL_ HOLD A PRE -CONSTRUCTION MEETING WITH THE INDIVIDUALS
RESPONSIBLE FOR THE SOIL EVALUATION, PERMITTING AND INSPECTIONS, PRIOR TO SITE WORK
BEGINNING, TO INSURE PROTECTION OF 'THE SITE CONDITIONS AND TO INSURE THAT SYSTEM IS
INSTALLED ACCORDING TO THE DESIGN.
14. IF SITE CONDITIONS ARE DETERM1141_D TO REQUIRE THE INSTALLATION OF THE SYSTEM TO
DEVIATE FROM THE PLANS, ALL SITE WORK SHALL STOP IMMEDIATELY AND THE DESIGNER SHALL BE
NOTIFIED. ANY ONGOING WORK SHALL BE AT THE SOLE RESPONSIBILITY OF THE CONTRACTOR_
15 OPERATION AND MA.iNTENA.NCE MANUAL IS TO BE PROVIDED AT JOB COMPLETION BY THE
MANUFACTURER OR PRODUCT SUPPLIER.
16. A 50' BUFFER SHALL BE MAINTAINED BETWEEN THE DRIP IRRIGATION SITES AND THE PROPERTY
LINES.
17. A 100' BUFFER SHALL BE MAINTAINED BETWEEN THE WASTEWATER SYSTEM (WETTED AREA,
LINES, AND TREAIMENT UNITS) AND ANY POTABLE DRINKING WATER WELLS.
18 A TWO -STRAND WARE FENCE SHALT_ BE INSTALLED AROUND THE PERIMETER OF THE DRIP FIELD,
19. A 100' BUFFER SHALL- BE MAINTAINED BETWEEN THE WASTEWATER SYSTEM WETTED AREA AND
RESIDENCES UNDER SEPARATE OWNERSHIP.
20 THE AUDIO AND VISUAL HIGH WATER ALARMS SHALL BE EXTERNAL TO ANY STRUCTURE.
21. A RAIN SENSOR (MINI -CLICK ii BY HUNTER INDUSTRIES, INC., RAIN -CHECK B)' RAINBIRD, OR
EQUAL) SHALL BE INSTALLED NEAR THE APPLICATION AREA AND SHALL BE WIRED INTO THE SYSTEM
CONTROL IN ACCORDANCE WITH MANUFACTURER'S RECOMMENDATIONS AND IN ACCORDANCE WITH
LOCAL ELECTRICAL COED REQUIREMENTS-
22. THE OUTDOOR CONTROL PANEL SHALL BE RATED NEMA 4X
23.. ALARMED FILIER SYSTEM IS OPDONAL; HOWEVER, IF SELECTED, IT SHALL BE WIRED INTO THE
CONTROL PANEL_ IN ACCORDANCE WITH MANUFACTURER'S RECOMMENDATIONS AND IN ACCORDANCE
WITH LOCAL ELECTRICAL CODE REQUIREMENTS.
24 DEPRESSIONS AND IRREGULARITIES IN THE APPLICATION AREA SHALL BE BRIDGED DURING
CONSTRUCTION VATH SECTIONS OF SOLID LINE. THE POR110NS OF SOLID LINE SHALL BE BURIED TO
PROTECT AGAINST FREEZING.
25. ALL SURFACE WATER SHALL BE DIVERTED FROM TANKS, RISERS, CONTAINERS, ETC., TO
PREVENT CONTAMINATION, EROSION, AND/OR MALFUNCTION.
3. THERE ARE NO KNOWN EXISTING WELLS, BUILDINGS, OR STRUCTURES WITHIN THE REQUIRED
BUFFERS.
4. THERE ARE NO AREAS WITH THE APPLICATION AREA THAT ARE WITHIN THE 100 YEAR
FLOODPLAIN.
5. THE APPLICATION AREA SHALL BE MAINTAINED AS A WOODED OR "NATURAL" AREA SITE-
6. A LEAKAGE TEST SHALL BE PERFORMED ON ALL TANKS WHEREBY AN EXFILTRATION RATE SHALL
NOT EXCEED A ONE-HALF INCH DROP IN A 24-HOUR PERIOD, AS OBSERVED AND CERTIFIED BY THE
ENGINEER.
7. ALL PRESSURE PIPING SHALL BE SCH. 40 PVC AND PRESSURE TESTED TO AN INITIAL PRESSURE OF 55
PSI, AND A 5 PSI DROP IN A 2 HOUR PERIOD IS NOT EXCEEDED.
1. TWO SEPARATE PANELS AR REQUIRED. ONE SHALL BE FOR THE PRE-
TREATMENT, AND ONE FOR THE DRIP DISPOSAL SYSTEM.
2. EACH CONTROL PANEL SHALL BE A NEMA 4X STYLE ENCLOSURE,
AND AS FABRICATED BY THE COMPONENT SUPPLIER.
3. EACH CONTROL PANEL SHALL BE LOCATED AS CLOSE AS POSSIBLE
TO THE COMPONENT IT SERVES, MOUNTED A MINIMUM OF 36 INCHES
ABOVE GRADE, AND FASTENED SECURELY TO A POST OR BOARD.
4. THE INSTALLERS ELECTRICIAN SHALL MAKE THE INTERNAL PANEL
CONNECTIONS FOR TE CONTROL CORDS (INPUT & OUTPUT, AND
GROUNDING ROD). EACH CONTROL PANEL SHALL CONTAIN A
WIRING SCHEMATIC IDENTIFYING THE INTERNAL AND EXTERNAL
CONNECTIONS.
5. POWER CONTROL CIRCUITS TO THE PRETREATMENT CONTROL
PANEL AS WELL AS THE DRIP DISPOSAL CONTROL PANEL SHALL
REQUIRE TWO CIRCUITS; ONE FOR THE PUMP OR BLOWER; AND, ONE
FOR THE ALARM AND CONTROL CIRCUITRY.
6. A MINIMUM CONDUIT SIZE OF 1 1/2 INCH SHALL BE USED FOR
CONNECTIONS FROM PANEL TO PUMP TANKS.
7. EACH CONTROL PANEL SHALL BE PROPERLY GROUNDED BY A
PROPERLY SIZED CONDUCTOR SECURELY FASTENED TO A GROUND
ROD AT THE BASE OF THE CONTROL PANEL LOCATION.
S. OPEN CONDUIT ENDS SHALL HAVE REMOVABLE CLAY -TYPE DUCT
SEAL EMBEDDED AT IT ENDS TO PREVENT GASSES AND MOISTURE
FROM ENTERING THE CONTROL PANELS. DO NOT USE SILICONE. OR
EXPANED FOAM PRODUCTS.
9. THE PUMP POWER CORDS AND FLOAT SWITCH CABLES SHALL BE
SUPPLIED IN A LENGTH SUITABLE SUCH THAT NO SPLICES WILL
OCCUR WITHIN THE PUMP TANKS. IF A SPLICE MUST BE MADE, IT
SHALL OCCUR MADE ABOVE GRADE IN A NEMA 4X JUNCTION BOX,
WITH ALL CABLE CLEARLY LABELED.
I O.ALARMS SHALL BE AUDIBLE AND VISIBLE.
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