WQ0000798_More Information Received_20220110

Non -Discharge Branch Upload/Submittal Form
NORTH CAROLINA
Envlronment&Qu,1ty
Version 2 - Revised June 23, 2020
Initial Review
Reviewer
Thornburg, Nathaniel D
Is this submittal an application? (Excluding additional information.) *
Yes No
If not an application what is the submittal type?*
Permit Number (IR) *
Applicant/Permittee
Email Notifications
Does this need review by the hydrogeologist? *
Regional Office
CO Reviewer
Admin Reviewer
Annual Report
Residual Annual Report
Additional Information
Other
WQ0000798
Brunswick County
Yes No

Submittal Form
Project Contact Information
Please provide information on the person to be contacted by NDB Staff regarding electronic submittal, confirmation of receipt, and other correspondence.
Name*
Carter Hubard
Email Address* Phone Number*
[e-mail] 9107624200
Project Information
Application/Document Type *
New (Fee Required)
Modification - Major (Fee Required)
Renewal with Major Modification (Fee
Required)
Annual Report
Additional Information
Other
Modification - Minor
Renewal
GW-59, NDMR, NDMLR, NDAR-1,
NDAR-2
Residual Annual Report
Change of Ownership
We no longer accept these monitoring reports through this portal. Please click on the link below and it will take you to the correct form.
https://edocs.deq.nc.gov/Forms/NonDischarge_Monitoring_Report
Permit Type: *
Permit Number: *
Applicant/Permittee Address*
Wastewater Irrigation
Other Wastewater
Closed -Loop Recycle
Single -Family Residence Wastewater
Irrigation
WQ0000798
Has Current Existing permit number
High -Rate Infiltration
Reclaimed Water
Residuals
Other
250 Grey Water Road NE, PO Box 249, Supply, North Carolina
Facility Name* Shallotte WWTF
Please provide comments/notes on your current submittal below.
Additional Information Request #3 Response
At this time, paper copies are no longer required. If you have any questions about what is required, please contact Nathaniel Thornburg
at [e-mail].
Please attach all information required or requested for this submittal to be reviewed here. *
(Application Form, Engineering Plans, Specifications, Calculations, Etc.)
2022110 Add Info #3 Response.pdf 18.91MB
Upload only 1 PDF document (less than 250 MB). Multiple documents must be combined into one PDF file unless file is larger
than upload limit.
By checking this box, I acknowledge that I understand the application will not be
accepted for pre -review until the fee (if required) has been received by the Non -
Discharge Branch. Application fees must be submitted by check or money order and
made payable to the North Carolina Department of Environmental Quality (NCDEQ).
I also confirm that the uploaded document is a single PDF with all parts of the
application in correct order (as specified by the application).
Mail payment to:
NCDEQ — Division of Water Resources
Attn: Non -Discharge Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
Signature
Submission Date 1/10/2022

DICKSONPkW
January 10, 2022
Submitted via electronic copy to DEQ upload site
Lauren Raup-Plummer,PE , Engineer III
Division of Water Resources
North Carolina Department of Environmental Quality
512 North Salisbury Street
Raleigh, North Carolina 27699-1617
Subject: Additional Information Request #3
Application No. WQ0000798
Shallotte WWTF
Brunswick County Wastewater Irrigation System
Dear Ms. Plummer:
In response to the Additional Information Request #3, dated December 22, 2021, to Brunswick
County, requesting additional information for the above -mentioned project. The comments with
responses in blue italics are provided on the following pages. Supplemental and revised documents
are submitted here in as follows:
Attachment 1- Application page
Attachment 2- Revised Sheets
Attachment 3- Specifications Cover and Revised Section
Attachment 4- Calculations Revisions with Cover
Attachment 5- Site Map
Attachment 6- Revised Bid Form
Attachment 7- Davis Bacon Wage Rate Determination
Attachment 8- Technical Memorandum on Transmission Force Main and Influent Force Main
300 N. Third Street, Suite 301
Wilmington, NC 28401
Tel. [phone]
www.wkdickson.com
Aviation • Water Resources • Community Development • Energy

Ms. Raup-Plummer
January 10, 2022
Page 2
A. Cover Letter:
1. No comment.
B. Application Fee:
1. No comment.
C. Application:
1. Supplemental documentation for the comments related to the application was
provided; however, page 2 of the uploaded application form (IV. General Requirements)
does not appear to have been revised. Please provide the revised application that
includes the changes indicated.
Page 2 of the application has been revised and is submitted in Attachment 1.
D. Property Ownership Documentation:
1. Pursuant to 15A NCAC 02T .0305(c), all deeds, easements, and encroachment
agreements necessary for installation, operation, and maintenance of the sewer system
shall be obtained prior to operation of the system. Please provide a status update
regarding the necessary property ownership documentation related to the influent force
main.
Brunswick County is acquiring two easements for the influent force main construction.
Easements are to be obtained prior to construction.
E. Soil Evaluation:
No Comment.
F. Agronomist Evaluation:
1. Within the response dated October 4, 2021, the response to comment F.1 indicated that
the phosphorus was not limiting at the site. The values presented in the Water Balance
use an estimated value of 4 mg/L of Phosphorus, and the provided calculation
indicates that 10.84 acres is required with 11.18 acres available. A quick review of the
last year of Shallotte effluent (PPI001 and PPI002) data indicates that 4 mg/L is not an
adequate estimate for the effluent phosphorus concentration. A query of Non -
Discharge Monitoring Report (NDMR) results has been provided as a separate
IICKSON

Ms. Raup-Plummer
January 10, 2022
Page 3
document. Please clarify what was meant by the October 4th response that the
phosphorus limiting statement was in error within the submitted documents, and
please address the anticipated loading of phosphorus on the proposed irrigation
fields.
The NDMR data from the Shallotte for the period March 2020 through February 2021
indicates an average phosphorous concentration of 4.38 mg/L. The cover crop for 60 pounds
per acre uptake in Brunswick County is Hybrid Bermuda grass with overseed. The
Phosphorous loading land requirement is 9.5 acres with this proposed cover crop. The proposed
area is 11.18 acres. Calculation of required area is included in attached calculations. See
Attachment 4.
G. Hydrogeologic Report:
No Comment.
H. Water Balance:
1. Within the water balance, it appears that the PAN evaporation data used is for
Lumberton, NC. It is unclear whether these values reflect coastal evaporation
behavior anticipated for the proposed spray irrigation and lagoon sites.
Two evaporation pan reporting stations are Lumberton and Hofman Forest (Maysville).
Lumberton is in the upper coastal plain at a distance of approximately 52 miles from the site
and Hofman Forest is approximately 95 miles from the site. Lumberton data was selected.
I. Engineering Plans:
1. Plan Sheet G4 depicts two 16-inch influent lines without any depiction of these lines
being reduced prior to the influent flow meters. As illustrated in Plan Sheet M2, the
line from US Highway 17 will be reduced from 16 inches to 12 inches prior to the
flowmeter. In addition, Plan Sheets C14, C16, and C26 indicate that the other influent
line will be 12 inches. Please revise Plan Sheet G4 to reflect the proper pipe sizes, or
explain.
Sheet G4 has been revised to indicate reducers to transition from 16-inch to 12-inch force main.
See Attachment 2.
IICKSON

Ms. Raup-Plummer
January 10, 2022
Page 4
2. A Combination Box is depicted within Plan Sheets G4 and G5, prior to the proposed
Headworks. It is assumed that this is the same structure that is labelled as the 6' x 6'
Mixing Well in Plan Sheet M1 and the Mixing Box on Plan Sheet M3. Section III. Of
the Design Calculations indicates that the Combination Box will be part of the
Headworks, but also indicates that "The Combination Box will be a circular concrete
manhole like structure...". Please revise information submitted to utilize the same
nomenclature and revise the Design Calculations or plans to reflect the same structure
or explain otherwise.
Sheets M1 and M3 have been revised. See Attachment 2.
3. Per Sheet C25, an existing lagoon influent structure is depicted near Sta. 25+30 along
the influent force main alignment. There are no indicators that this structure is to be
removed from service, abandoned in place, or demolished within the provided plan
sheets. The existing lagoon depicted appears to be the lower lagoon (Lagoon No. 3) .
The existing influent to lagoon #3 structure will be taken out of service by removing the end
valve and installing a restrained cap. See Sheet C25 in Attachment 2.
4. In the response letter dated October 4, 2021, it was stated that the plan sheets indicated
capping and removal of existing spray area 1A and 2B piping. However, a sheet
reference was not provided, and with the numerous existing force mains present at
the site, it is unclear which ones correspond to which facility features. A call -out
appears to have been added to Sheet C-40, but it is unclear as to whether the entirety
of the demolition plan is represented by that singular call -out. Please clarify which
plan sheets depict the capping and removal of the existing infrastructure related to
spray areas 1A and 2B.
Capping of the piping to areas 1A and 2B are called out on Sheet C-40.
J. Specifications:
1. In the response letter dated October 4, 2021, it was indicated that a sealed
specifications cover included in the submittal. However, it was not found within the
uploaded documents. Please provide a copy of the sealed specifications cover.
A sealed cover is resubmitted in Attachment 3.
IICKSON

Ms. Raup-Plummer
January 10, 2022
Page 5
2. In the response letter dated October 4, 2021, the response stated that page 9 of Section
09 90 00 of the specifications had been revised to show potable water as dark blue and
treated effluent for the purposes of non -potable water, infiltration, or irrigation as
purple. The provided Section 09 90 00 states that with regards to wastewater
treatment plant color coding the "Owner to make final choice of color from color chart
provided by Contractor. The contents and direction of flow are to be stenciled on the
piping in a contrasting color". It appears that the revised file was not provided for
our review. Please provide a copy of the revised Section 09 90 00 that includes the
language indicated in the response.
Revised Section 09 90 00 is submitted herein see section 3.8 C. See Attachment 3.
K. Engineering Calculations:
1. During our review of the revised documents, it was noted that the provided
engineering calculations were not signed, sealed, and dated by a North Carolina
licensed Professional Engineer. Please provide a certified cover sheet for the
Engineering Calculations.
Submitted in Attachment 4.
2. Within the response for K.3. of the previous submittal, it appears that our comment
was misinterpreted. The Soil and Hydrogeologic Analysis report and the Water
Balance by Edwin Andrews and Associates, P.C. (EAA) both utilized recommended
loading rates that were less than the 2 in/hr that was provided in the application under
Item VII.3 of the application and within the site characteristics summary of the
calculations. The only mention of 2 in/hr found in the EAA report appears to be a
referenced value for forested soils provided by NRCS and not the value measured on -
site for Kureb soils of 1.2 in/hr. These values were on the same page (EAA 16-17, page
5-2) with the 1.2 in/hr referenced in a note on the Water Balance. It is worth noting
that the Water Balance was performed using 0.3 in/hr. Additionally, the value of 2
in/hr is in disagreement with the recommended irrigation of 1.0 in/wk found in the
conclusions of the EAA report. Additionally, we understand that the designed
loading rate is 0.13 in/hr based on the "precipitation rate" provided by the chosen
sprinkler configuration. This precipitation rate value is listed in both the calculations
and in the response found for K.3. of the previous submittal. The designed loading
rate provided in Item VII.8 of the application should be 0.13 in/hr based on the
provided information. Please revise the two previously mentioned items within the
application and the value of the recommended infiltration rate in the site
IICKSON

Ms. Raup-Plummer
January 10, 2022
Page 6
characteristics of the calculations, or please provide additional information identifying
where in the site evaluation reports provided by Edwin Andrews and Associates, P.C.
the proposed values are documented.
The calculations have been revised to indicate an application rate of 1 inch per week with a dose
of 0.2 in maximum. The spray head area calculation indicates an application of 0.138 in/hour
to assist with timing of spray application. The application page has been revised. See
Attachment 4 for calculation and Attachment 1 for revised application page.
Site Map: In the response letter dated October 4, 2021, it was indicated that a new site map had
been provided. The referenced site map was not found within the uploaded documents.
Please provide a copy of the site map for our review.
GIS site maps are included in this submittal. See Attachment 5.
L. Power Reliability Plan:
1. No comment.
M. Operation & Maintenance Plan:
1. No comment.
N. Residuals Management Plan:
1. No comment.
O. Additional Documentation:
➢ Certificate of Public Convenience and Necessity:
1. Not applicable.
➢ Existing Permit:
1. No comment.
➢ Final Environmental Document:
1. No comment.
➢ Floodway Regulation Compliance:
1. No comment.
IICKSON

Ms. Raup-Plummer
January 10, 2022
Page 7
➢ Operational Agreements:
1. Not applicable.
➢ Threatened or Endangered Aquatic Species Documentation:
1. No comment.
➢ Wastewater Chemical Analysis:
Not applicable.
P. Comments from Division of Water Infrastructure Staff
➢ General:
1. The necessity of the additional equalization tank next to the headworks is unclear.
Incoming flow to the headworks and Shallotte can be controlled via the motorized ball
valve on the new force main and the existing diversion pump. Additionally, the
Shallotte facultative lagoons could be used to dampen the peak flow. With these
measures in mind, please clarify the necessity of the equalization tank. DWI
recommends taking the tank out of this project considering the increase in
construction costs volatility. Another option would be to add an Alternate (deductive)
Bid which removes the proposed equalization tank and associated yard piping. In
this manner, the equalization tank could be removed if bid costs are higher than
expected.
The equalization tank is included in the project to provide regional wastewater treatment
operational flexibility to store flow during peak surge events. The equalization will allow the
flow to be treated at this regional facility. The existing lagoons are limited in storage during
storm events by available freeboard and the spray application capacity. Excess flows in the
lagoons have to be pumped to the WBWRF by the diversion pump station. The equalization
tank will be included as a bid item and as a deduction alternate. See Attachment 6.
2. The proposed headworks is to treat 0.5 MGD from the existing Shallotte
lagoon/irrigation facility and 0.75 MGD from the proposed Mulberry Branch Water
Reclamation Facility (WRF). The proposed 0.75 MGD Mulberry Branch facility is
equivalent to the purchase capacity for the City of Southport. The proposed
headworks includes a mechanical rotary drum screen, manual bar screen, grit removal
system with grit washer, and an odor control system. Each of these components is
rated for 1.25 MGD design flow x 2.5 peaking factor for a total 3.125 MGD peak hour
IICKSON

Ms. Raup-Plummer
January 10, 2022
Page 8
flow. We noted that the entire concrete structure appears to be designed for a future
design flow of 5.0 MGD with a peak hour flow of 12.5 MGD with the channel widths
and depths being designed for the 12.5 MGD future flow. DWI is concerned that the
City of Southport, which is funding this project, is funding the headworks structure
that is rated for a higher capacity than it is purchasing. DWI is concerned that
Southport may not be aware of this over -design, and they assume that this additional
future capacity is for the needs of Brunswick County and not necessarily Southport.
Please clarify, what is the nature of this over -design of the headworks structure? We
recommend having further discussions with DWI and the Non -Discharge Branch
regarding this matter.
The headworks structure and equipment are designed for the current capacity for 0.75 MGD
regional flow and 0.5 MGD Shallotte flow with a peak flow of 3.125 MGD. The design includes
channel width of 3 feet for operator access. The calculations using the 3 foot width indicate
future capacity of 5 MGD.
➢ Engineering Plans:
1. Per Sheet G5, the note at the top of the hydraulic profile reads that the average daily
flow (ADF) is 0.75 MGD and the peak flow (PF) is 1.875 MGD. However, calculations
for headworks were performed for 1.25 MGD ADF and 3.125 MGD PF. Please
reconcile.
The hydraulic profile on Sheet G5 for the proposed WWTP states 0.75 MGD and peak flow of
1.875 MGD correctly. Flow from the headworks is split between the proposed WWTP and the
existing 0.5 MGD facility.
2. Per Sheet C26, there are two tie-ins to existing Shallotte force main depicted. Please
clarify why the existing fore main requires two connections to the new headworks.
Also, the existing Shallotte force main is extended on both sides of the new headworks
and it is unclear where it extends and connects to. Please clarify the direction of this
force main and where it connects to on both sides.
The existing Shallotte force main from the west currently extends to Lagoon #3 influent
structure. The tie in of this existing force main will be intercepted and connected to the
headworks influent piping.
3. Within the plan sheets it is unclear where the back-up generators are to be located.
Please clarify the back-up generator locations on the mechanical sheets (e.g. Sheet M2).
IICKSON

Ms. Raup-Plummer
January 10, 2022
Page 9
Sheet C14 has been revised to indicate the generator location. See Attachment 2.
4. The manual bar screen's channel design in the headworks contradicts within the plan
sheets for structural and mechanical details. In the structural plans, 3 feet of width of
the channel is grouted on the left side (Section 1, S3). In the mechanical plans, the 3-
foot-wide mechanical bar screen is located on the left side. Please reconcile.
Structural Plan S3 is being revised and will be submitted separately.
➢ Specifications:
1. Although the Davis -Bacon wage determination has been updated to 2021, it appears
that this project will not go for bid in 2021. Please update the Davis -Bacon wage
determination to 2022 when it becomes available.
The most current Davis -Bacon wage determination will be used in the bid documents and
updated in addendum if necessary. See Attachment 7.
➢ Engineering Calculations:
1. The new 16-inch force main is proposed to connect to an existing 24-inch transmission
main along US 17. Please provide calculations and system/pump cure data for the
new 16-inch force main. Also, please provide evaluation/modelling of the impact of
adding the 16-inch force main to the existing 24-inch transmission main.
A summary of calculations and modeling of the regional force main are provided in the
attached technical memorandum. See Attachment 8.
IICKSON

Ms. Raup-Plummer
January 10, 2022
Page 10
We appreciate the comments received and your assistance with this project.
Sincerely,
W.K. Dickson & Co., Inc.
T. Carter Hubard, PE
Vice President & Wilmington Regional Manager
Attachments: As Noted
cc: NCDEQ Wilmington Regional Office, Water Quality Regional Operations Section
(Electronic Copy)
Ken Pohlig, PE, Division of Water Infrastructure (Electronic Copy)
IICKSON

Ms. Raup-Plummer
January 10, 2022
Page 10
We appreciate the comments received and your assistance with this project.
Sincerely,
W.K. Dickson & Co., Inc.
w,r/
T. Carter Hubard, PE
Vice President & Wilmington Regional Manager
Attachments: As Noted
cc: NCDEQ Wilmington Regional Office, Water Quality Regional Operations Section
(Electronic Copy)
Ken Pohlig, PE, Division of Water Infrastructure (Electronic Copy)
IICKSON

ATTACHMENT 1
IV. GENERAL REQUIREMENTS — 15A NCAC 02T .0100:
1. Application type: ❑ New ® Major Modification ❑ Minor Modification
If a modification, provide the existing peunit number: WQ0000798 and most recent issuance date: November 1 2014
2. Application fee: $395 — Standard — Pe lit Modification
3. Does this project utilize public monies or lands? ® Yes or ❑ No
If yes, was an Environmental Assessment required under 15A NCAC O1 C? ® Yes or ❑ No
If yes, which final environmental document is submitted? ® Finding of No Significant Impact or ❑ Record of Decision
Briefly describe any mitigating factors from the Environmental Assessment that may impact this facility: The Environmental
Assessment is still under review. A copy is included in Attachment P.3 Engineering Report/Environmental Information
Document. Currently all comments have been responded to.
4. What is the status of the following peunits/certifications applicable to the subject facility?
Permit/Certification
Date
Submitted
Date
Approved
Permit/Certification
Number
Agency Reviewer
Collection System (Q > 200,000 GPD)
N/A
Dam Safety
N/A
Erosion & Sedimentation Control Plan
8/10/21
9/24/21
BRUNS-2022-022
Nationwide 12 / Section 404
7/12/21
9/29/21
SAW-2021-01545
Pretreatment
N/A
Sewer System
N/A
Stounwater Management Plan
8/10/21
SW8 210809
Steve Pusey
Wetlands 401
7/16/21
9/28/21
20210653
Other:
5. What is the wastewater type? ® Domestic or Industrial (See 15A NCAC 02T .0103(20))
Is there a Pretreatment Program in effect? ❑ Yes or ❑ No
> Has a wastewater chemical analysis been submitted? ❑ Yes or ❑ No
6. Wastewater flow: 500,000 GPD
Limited by: ❑ Treatment, ❑ Storage, ® Field Hydraulics, ❑ Field Agronomics or ❑ Groundwater Mounding
7. Explain how the wastewater flow was determined: ❑ 15A NCAC 02T .0114 or ❑ Representative Data
Has a flow reduction been approved under 15A NCAC 02T .0114(f)? ❑ Yes or ® No
Establishment Type
Daily Design Flow a
No. of Units
Flow
gal/
GPD
gal/
GPD
gal/
GPD
gal/
GPD
gal/
GPD
gal/
GPD
Total
GPD
a See 15A NCAC 02T .0114(b), (d), (e)(1) and (e)(2), for caveats to wastewater design flow rates (i e , minimum flow per
dwelling; proposed unknown non-residential development uses; public access facilities located near high public use areas;
and residential property located south or east of the Atlantic Intracoastal Waterway to be used as vacation rentals as defined
in G.S. 42A-4).
FORM: WWIS 06-16
Page 2 of 13

VII. IRRIGATION SYSTEM DESIGN CRITERIA — 15A NCAC 02T .0505 (continued):
8. Field Infounation (NOTE — This table may be expanded for additional fields):
Field
Area
(acres)
Dominant
Soil Series
Designed
Loading
Rate
(in/hr)
Designed
Loading
Rate
(in/yr)
Latitude a
Longitude a
Waterbody
Stream Index
No. b
Classification
lA
Removed
-6.5
Baymeade
2
44.2
33.9988°
-78.3804°
1B
Removed
-6.5
Baymeade
2
44.2
33.9988°
-78.3816°
14
Added
11.18
Kureb
0.138
52
34.0150°
-78.3803°
15-25-2-7
C;Sw
°
°
°
°
°
°
Total
-1.2
a Provide the following latitude and longitude coordinate determination infounation:
Datum: NAD83 Level of accuracy: UnknownMethod of measurement: Unknown
b For assistance deteuinining the waterbody stream index number and its associated classification, instructions may be
downloaded at: http://deq.nc.gov/about/divisions/water-resources/planning/classification-standards/classifications
Spray Irrigation Design Elements
Drip Irrigation Design Elements
Nozzle wetted diameter:
92-125 ft
Emitter wetted area:
N/A ft'
Nozzle wetted area:
6,650 - 12,275 ft'
Distance between laterals:
N/A ft
Nozzle capacity:
3.82-10.6 GPM
Distance between emitters:
N/A ft
Nozzle manufacturer/model:
Senninger / 4023 40 Series
Emitter capacity:
N/A GPH
Elevation of highest nozzle:
70.00 ft
Emitter manufacturer/model:
N/A / N/A
Specification Section:
32 84 00 Irrigation
Elevation of highest emitter:
N/A ft
Specification Section:
N/A
Vlll. SETBACKS — 15A NCAC 02T .0506:
1. Does the project comply with all setbacks found in the river basin rules (15A NCAC 02B .0200)? ® Yes or ❑ No
If no, list non -compliant setbacks:
2. Have any setback waivers been obtained in order to comply with 15A NCAC 02T .506(a) and .0506(b)? ❑ Yes or ® No
If yes, have these waivers been written, notarized and signed by all parties involved and recorded with the County Register of
Deeds? ❑ Yes or ❑ No
3. Provide the minimum field observed distances (ft) for each setback parameter to the irrigation system and treatment/storage
units (NOTE — Distances greater than 500 feet may be marked N/A):
Setback Parameter
Irrigation
System
Treatment /
Storage Units
Any habitable residence or place of assembly under separate ownership or not to be
maintained as part of the project site
N/A
N/A
Any habitable residence or place of assembly owned by the Permittee to be maintained as
part of the project site
N/A
Any private or public water supply source
N/A
N/A
FORM: WWIS 06-16
Page 10 of 13

ATTACHMENT 2
INFILTRATION
BASINS
AEROBIC
DIGESTER
TO OFFSITE
DISPOSAL
FLOWMETER
O
01
INFILTRATION
BASINS
FLOWMETER
o TURBIDITY SENSOR
UV DISINFECTION
SITE
PS
6" WAS FM
FLOWMETER
16" PROCESS
1 1
24" PROCESS
8 GRAVITY DRAIN
CLARIFIER
�O
Q
CLARIFIER 2
COMB.
BOX
INFILTRATION
BASINS
FLOWMETER
OXIDATION
DITCH 1
OXIDATION
DITCH 2
SPLITTER
BOX
FLOWMETER
SELECTOR — IT PRE-DN
FLOWMETER
ro
SCUM
PS
8" DRAIN PS FM
8" GRAVITY DRAIN
8" RAS FM
GREEN BAY
INF. FM
16" FROM SHALLOTTE INF. FM D
16" FROM HWY 17 INF. FM
No-
16" x 12" REDUCER (TYP)
12" BYPASS
FLOWMETER
FLOWMETER_
COMB.i
BOX
HEADWORKS
12" BYPASS
FLOWMETER
FLOWMETER
8" DRAIN
I I
FLOWMETER
12" OVERFLOW
EXIST.
WBWRF
( T ( 1
1 EXISTING 1 1 EXISTING 1
UPPER 1-1111.-1 UPPER 1
1 LAGOON 1 I 1 LAGOON 2 I
1iI tLi1
0
0o
m
EXISTING
LOWER
LAGOON I
EXISTING STRUCTURE
PROPOSED STRUCTURE
PROPOSED
SPRAY
FIELD NO.
14
1
TING
ETERIQ
FINAL DESIGN - NOT RELEASED FOR CONSTRUCTION
D CKSON
community Infrastructure consultants
1213 V/. MOREHEAD STREET
SUITE 300
CHARLOTTE, NC 28208
(t)704-334-5348
(I)704-334-0078
W W W.WKDICKSON.COM
NC LICENSE NO.F-0374
WASTEWATER TREATMENT AND DISPOSAL FOR THE CITY OF SOUTHPORT
DRAWING TITLE:
PROCESS FLOW DIAGRAM
PROJ. MGR.
DESIGN BY:
DRAWN BY:
PROJ. DATE:
TCH
SEG
GCH
2021
DRAWING NUMBER:
G4
WKD PROJ. NO.:
20170253.00.WL

STA 8+44.39
N: 90031.4855
E: 2188317.9817
- rs
-1 RIPRAP APRON
LENGTH: 18'
WIDTH: 21'
THICKNESS: 18"'
CLASS B RIP -RAP
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50.50 FS
CONCRETE PAD & WALKWAY
GRAVEL ACCESS ROAD
PROPERTY LINE
PROPOSED CONTOUR
EXISTING CONTOUR
NON -POTABLE WATER PIPE
STORM DRAIN MANHOLE
SLAB TYPE CATCH BASIN
FINISHED GRADE ELEVATION
FINISHED SURFACE ELEVATION
LINE TABLE
LINE#
LENGTH
DIRECTION
L1
203.70'
S81°58'21"W
L2
97.88'
S63°40'26"W
L3
28.26'
N74"30'56"W
L4
80.81'
S84`23'13"W
L5
209.16'
S89°2519"W
PROP. SDMH-2
_STA. 0+50.56
RIM =49.10 et
- INV IN (E) = 44.77
\\� \ \ \ \ \ I II 1 11
.GENERATOR. SEE SHEET
\ \\IIIIII
\\\\I II ll\ II
\
`,\\.\\\\\\ \\
UTILITY TRANSFORMER. \
'SEE SHEET E1.3.
\ \®\\\\\\PROPOSED HEADWORKS
'SEE DETAIL SHT. M1
-\ - -
PROPOSEDEQTANK_ __-- -- --`____ I,
- BOTTOM EL. 52.00
-
SEEDETAIL SHT. MH -
----_ _-N. - . \ -
- \ \ - - - - - \ \ \
- TANK PUMP PAD \ I \ \ \ 0
-
PROPOSED EQ N
EXISTING UPPER
LAGOON 1
PROP. 252 LF- - - - 30" = 30" CLASS IV RCP @ 0.50 /,
INV. OUT = 44.77 - PROPOSED HEADWORKS CONNECTION
TO EXISTING 12" FORCE MAIN, SEE
PROP. 35 LF
30" CLASS IV RCP (`,, 0.50%
PROP. FES-4
STA. 0+15.69
INV. OUT = 44.60
SHEET C26 FOR PLAN AND PROFILE - - - -
EXISTING LOWER
LAGOON
PROPOSED 16" INFLUENT F
MAIN, SEE SHEETS C22 - C2
PLAN AND PR
CE _
FOR
ILE
PROPOSED 2" PVC SCH. 80
NPW PIPING, SEE NPVV
CONNECTION NOTE 1
NON -POTABLE WATER CONNECTION NOTES
\ \ \ r
PROP. SCB-4
(NCDOT STD 840.31 JB W/ 840.22 GRATE
) INTERFERENCE STRUCTURE)
STA. 3+29.13
RIM = 50.50
- ` PROP. 27 LF
SS IV RCP @ 0.50%.
\vv
PROP. SDMH-3 \ -
(NCDOT STD 840.31 JB W/ 840.54 COVER \
INTERFERENCE STRUCTURE)
STA. 3+02.30
RIM = 51.60
9 _
INV. IN(N)= 46.03 -
----
/
EXISTING UPPER
LAGOON 2
OUTLET STRUCTURE
SEE SHEET M31
PROPOSED TAP AND VALVE ON -
T EXISTING WATER LINE FOR 2"
I PVC SCH. 80 NPW CONNECTION, -
SEE NPW CONNECTION NOTE 1 -
I
PROPOSED REDUCED
PRESSURE BACKFLOW
FSS WITH
99- FIBERGLASS ENCLOSURE,
SEE NPW CONNECTION
NOTE 2
�� r-1 .d
L ACCESS ROAD HEADWORKS
STA 0+00.00
N: 90117.6201
E 2189144.0230
IIE-- uE---
STA 1+5050
-BEGIN PROPOSED _ \ - -
GRAVELROAD. M--
,PROPOSED 15' WIDE _ 1
GRAVEL ACCESS ROAD - - -
INV. OUT=46.03 -----_
Br
SCALE: 1"=30' - - -55-
1. CONTRACTOR SHALL INSTALL PROPOSED NPW LINE IN ACCORDANCE WITH NORTH
CAROLINA PLUMBING CODE AND MAINTAIN REQUIRED HORIZONTAL AND VERTICAL
SEPARATIONS BETWEEN PROPOSED NPW LINE AND ALL OTHER UTILITY PIPING.
2. CONTRACTOR SHALL INSTALL APPROVED BACKFLOW PREVENTION DEVICE IN
ACCORDANCE WITH TOWN OF SHALLOTTE AND BRUNSWICK COUNTY PUBLIC UTILITY
STANDARDS.
\� \ /\\\/ \� /\\ \\\\\
SLOPE VARIES
CL ACCESS ROAD
MIN
6" THICK COMPACTED
ABC STONE
SLOPE VARIES
10" COMPACTED
SUBGRADE
TYP. GRAVEL ACCESS ROAD SECTION
NOT TO SCALE
WORKS SITE GRADING & DRAINAGE PLAN
EXIST.
GROUND
CURVE TABLE
CURVE #
RADIUS
LENGTH
TANGENT
DELTA
PC STA
PC NORTHING
PC EASTING
PT STA
PT NORTHING
PT EASTING
PI STA
PI NORTHING
PI EASTING
C1
75.00'
23.95'
12.08'
018'17'55"
2+03.70
90089.17
2188942.31
2+27.66
90082.13
2188919.53
2+15.78
90087.49
2188930.35
C2
150.00'
109.46'
57.30'
041'48'38"
3+25.54
90038.72
2188831.80
4+35.00
90028.61
2188725.23
3+82.83
90013.31
2188780.44
C3
199.85'
73.59'
37.22'
021°05'51"
4+63.26
90036.15
2188698.00
5+36.85
90042.45
2188625.09
5+00.47
90046.09
2188662.13
C4
200.00'
17.58'
8.79'
005'02'07"
6+17.65
90034.54
2188544.67
6+35.23
90033.60
2188527.13
6+26.45
90033.68
2188535.92
SCALE: 1" = 30'
CONTROL POINTS TABLE
POINT NUMBER
DESCRIPTION
NORTHING
EASTING
1
CORNER OF EQ TANK PUMP PAD
90076.26
2188600.62
2
CORNER OF EQ TANK PUMP SLAB
90080.07
2188820.25
3
CORNER OF EQ TANK PUMP SLAB
90053.58
2188625.42
4
CORNER OF EQ TANK PUMP SLAB
90049.75
2188605.80
5
CENTER OF EQ TANK
90078.46
2188558.74
6
CORNER OF INFLUENT PS PAD
90077.98
2188524.85
7
CORNER OF INFLUENT PS PAD
90112.66
2188518.11
8
CORNER OF INFLUENT PS PAD
90106.55
2188486.65
9
CORNER OF HEADWORKS
90111.32
2188484.52
10
CORNER OF HEADWORKS
90102.28
2188437.89
11
CORNER OF HEADWORKS
99059.97
2188448.29
12
CORNER OF HEADWORKS
90062.31
2188462.97
13
CORNER OF HEADWORKS
90052.87
2188451.06
14
CORNER OF HEADWORKS
90054.40
2188458.91
15
CORNER OF HEADWORKS PAD
90080.64
2188459.41
16
CORNER OF HEADWORKS
90086.46
2188489.35
17
CORNER OF HEADWORKS PAD
90085.69
2188485.42
18
CORNER OF HEADWORKS PAD
90060.51
2188490.32
19
CORNER OF INFLUENT PS
90071.64
2188492.23
20
CORNER OF INFLUENT PS
90075.20
2188510.55
GRADING AND DRAINAGE NOTES
1. REFER TO THE SITE PLAN FOR RELATED NOTES.
2. APPROVAL OF THIS PLAN IS NOT AN AUTHORIZATION TO GRADE ADJACENT
PROPERTIES. WHEN FIELD CONDITIONS WARRANT OFF -SITE GRADING,
PERMISSION MUST BE OBTAINED FROM THE AFFECTED OWNERS.
3. ALL CONTOURS AND SPOT ELEVATIONS REFLECT FINISHED GRADES.
4. ALL ELEVATIONS ARE IN REFERENCE TO THE BENCHMARK. CONTRACTOR
SHALL VERIFY THE BENCHMARK PRIOR TO GROUND BREAKING.
5. THE CONTRACTOR SHALL IMMEDIATELY REPORT TO OWNER ANY
DISCREPANCIES FOUND BETWEEN ACTUAL FIELD CONDITIONS AND
CONSTRUCTION DOCUMENTS AND SHALL WAIT FOR INSTRUCTION PRIOR TO
PROCEEDING.
6. CONTRACTOR SHALL VERIFY LOCATION OF ALL EXISTING UTILITIES IN THE
FIELD PRIOR TO BEGINNING CONSTRUCTION.
7. CONTRACTOR SHALL BLEND NEW EARTHWORK SMOOTHLY TO TRANSITION
BACK TO EXISTING GRADE.
8. ALL FILL SHALL BE PLACED IN MAXIMUM 8-INCH LIFTS AND COMPACTED. ALL
FILL WITHIN LIMITS OF BUILDING AND PAVEMENT AREAS SHALL BE
COMPACTED TO 100% STD. PROCTOR DENSITY WITHIN THE TOP 24 INCHES
AND A MINIMUM 98% STD. PROCTOR DENSITY BELOW 24-INCH DEPTH. FILL
WITHIN LANDSCAPED AREAS SHALL BE COMPACTED TO MINIMUM 90% STD.
PROCTOR DENSITY. REFER TO GEOTECHNICAL ENGINEER'S REPORT FOR
ADDITIONAL EARTHWORK SPECIFICATIONS AND REQUIREMENTS.
9. LIMITS OF CLEARING SHOWN ON GRADING PLAN ARE BASED UPON THE
APPROXIMATE CUT AND FILL SLOPE LIMITS, OR OTHER GRADING
REQUIREMENTS.
10. THE PROPOSED CONTOURS AND SPOT ELEVATIONS SHOWN REFLECT
FINISHED ELEVATIONS INCLUDING PAVEMENT. REFER TO PAVEMENT CROSS
SECTION DATA TO ESTABLISH CORRECT SUBBASE OR AGGREGATE BASE
COURSE ELEVATIONS TO BE COMPLETED UNDER THIS CONTRACT.
11. CONTRACTOR SHALL ENSURE POSITIVE DRAINAGE SUCH THAT RUNOFF WILL
DRAIN BY GRAVITY FLOW ACROSS NEW PAVEMENT AREAS TO NEW OR
EXISTING DRAINAGE INLETS, OR SHEET OVERLAND.
12. REFER TO G2 FOR NOTES & CONSTRUCTION SEQUENCE REQUIREMENTS.
13. ALL GRADED OR DISTURBED AREAS BEYOND THE LIMITS OF PAVING,
SIDEWALKS, BUILDINGS, ETC., SHALL BE STABILIZED WITH A NEW LAWN
SEEDED IN ACCORDANCE WITH THE SEEDING SPECIFICATION, SHEET D14.
CONTRACTOR SHALL MAINTAIN SEEDED AREAS UNTIL A HEALTHY STAND OF
GRASS IS ESTABLISHED.
00
FINAL DESIGN - NOT RELEASED FOR CONSTRUCTION
wD CKSON
community Infrastructure consultants
1213 W. MOREHEAD STREET
SUITE 300
CHARLOTTE, NC 28208
(t)704-334-5348
(1)704-334-0078
W W W.WKDICKSON.COM
NC LICENSE NO.F-0374
WASTEWATER TREATMENT AND DISPOSAL FOR THE CITY OF SOUTHPORT
DRAWING TITLE:
HEADWORKS SITE LAYOUT, GRADING & DRAINAGE PLAN
PROJ. MGR.
DESIGN BY:
DRAWN BY:
PROJ. DATE:
TCH
KR
GCH
2021
DRAWING NUMBER:
C14
WKD PROJ. NO.:
20170253.00.WL

�W 4i Wj
30tD n 3n— too-3"— tt6 Lb6 -3n— — E
—SE---OE---OE---OE-= eg--
INFLUENT FORCE MAIN
LIMIT OF DISTURBANCE,
SEE NOTE 1
DISTURBED AREA= 1.30 AC
(TOTAL, SEE ADJACENT SHEET)
PROPOSED FORCE MAIN
RESTRAINED JOINT PIPE (PROFILE)
EXISTING FORCE MAIN
�m wo LIMITS OF DISTURBANCE
64 +
60 --
56 --
52
48
44 --
40
36 --
LEGEND
2 / il iiii il
S\ 'I \'11 1 1 \ k- \ 1\ i
\ 1I1II j)/ \ `\` �\
U
I lil II II �1
II 1
1, I 1 ail I II II II\ I
\ I111111111 \N`--
\ \ 11 11151'1' I1m \--
I I1111
\,, --'1
\\ II /8 \\\N = _--B —II _ _ _
/� \ � \ '�� 1\I 11\\\\�_-- —___—_ PROPOSED i6"PVC _----
�\ N_// i N \ \ -, \\`\ — — FORCE MAIN
----
00— — QO?— —z 0i o �aT aoi 2z+Do ..i-'2 -- 461 a-140 — - — — as _---=____...--- oe � awl `\
/ 23400 - � _24+00,- — -- 25
Wj Wj IQj Wj Wa Wj 1
BRUNSWICK
COUNTY
PIM: 1820004217
D.B. 2627, PG. 1344
E-- — —OET
--- �—
56
/
683 LF SILT FENCE
/ \ \ 1
1 I I
/ / /
1 / / 1 / /1
1 / / 1
PERMANENT UTILITY EASEMENT
TEMPORARY CONSTRUCTION EASEMENT
SILT FENCE
PROPERTY LINE
EXISTING CONTOUR
EXISTING LAGOON
-A—REMOVE DOWNSTREAM VALVE
AND CAP LAGOON INFLUENT -
- FORCE MAIN WITH RESTRAINED DIP
EXISTING CHAIN
LINK FENCE EDGE OF PAVEMENT
EXISTING 12" PVC FORCE MAIN
(APPROXIMATE LOCATION
S FROM RECORD DRAWINGS)
EXISTING LAGOON EXISTING 8" PVC
INFLUENT STRUCTURE = FORCE MAIN , =
PROPOSED 8" PLUG VALVE ---- ---_�
CUT INTO EXISTING FORCE - — -
MATCHLINE 30+00 SEE SHEET C26
PROPOSED 16"
RJDI 45' BEND
STA 28+97
MAIN FOR FLOW DIVERSION =- - ee
o—' ,. rla —�++ -aO- m aoi __
_ 28+00 = - - - - ,,, 27+00 3n— - M--- n - 28+p0-
=-311— _�j--3f1—�311 -
-� / IVj—
— \—
\ \ �`___ vu ,a3-
OE— — r0E— —„ —OE— OE— — —GE= — —0E— 4-2i i 56— — _5-1
� - 56
MILIVIMMEILIMAIrinM
OREST ST EXT NW (60' RNV)
g� PROPOSED AIR
•5 RELEASENACUUM
EDGE OF PAVEMENT
BRUNSWICK
COUNTY
P10: 1820004216
D.B. 2627, PG. 1344
I111 I ' I 1 )/r 1/
1II 11 1 1II /f 1 AyI .I 1
bl
/,//I/,
- / / /-
-- y �/ /
c_— TI3PROPOSED 16" --55/ \/ /
RJDI 45'BEND /e6 . /+
- - _ _ STA 28+41 4 0)
j — �
VALVE WITH MANHOLE
STA 27+62
(SEE DETAIL SHEET D9)
PROPOSED 16" RJDI
ISOLATION PLUG VALVE
STA 27+87
HEADWORKS SITE
LIMIT OF DISTURBANCE,
SEE NOTE 1
DISTURBED AREA= 1.65 AC
(TOTAL, SEE ADJACENT SHEET)
NOTES:
1. LIMIT OF DISTURBANCE (LOD) LINE SHOWN FOR CLARITY, THE ACTUAL LOD
SHOULD NOT EXCEED TEMPORARY OR PERMANENT CONSTRUCTION EASEMENTS.
SEE SHEET C60 FOR HEADWORKS SITE EROSION CONTROL PLAN.
2. LENGTH OF RESTRAINED JOINT (RJ) PIPE SHADED IN PROFILES TO BE CENTERED
ON EACH SIDE OF FITTING STATION SHOWN. RJ PIPE SHALL EXTEND TO NEXT PIPE
JOINT BEYOND MINIMUM LENGTH INDICATED.
EXISTING GRADE
z
EXISTING 8" PVC
rFORCE MAIN
EXISTING 8" PVC
/FORCE MAIN
PROPOSED 16" PVC
FORCE MAIN
PROPOSED 127 LF
16" RJDI FORCE MAIN
SEE NOTE 3
20+00
SCALE:
HOR 1"=40` VERT 1"=4'
PROPOSED AIR
RELEASENACUUM
VALVE WITH MANHOLE
STA 27+62
(SEE DETAIL SHEET D9)
PROPOSED 16" RJDI
ISOLATION PLUG VALVE
WITH VALVE BOX
STA 27+87
EXISTING 8" PVC
FORCE MAIN
EXISTING 12" PVC
FORCE MAIN
PROPOSED 113 LF
16" RJDI FORCE MAIN
SEE NOTE 2
PROPOSED 16" RJDI
4 " BEND (HORIZ.)
STA 28+97
PROPOSED 16" RJDI
45" BEND (HORIZ.)
STA 28+41
+ 64
-r 60
-r 56
52
-r 48
-r 44
-r 40
-r 36
21+00 22+00 23+00 24+00 25+00 26+00 27+00 28+00 29+00 30+00
PROPOSED INFLUENT FORCE MAIN
FINAL DESIGN - NOT RELEASED FOR CONSTRUCTION
1IGK1
community infrastructure consultants
1213 VJ. MOREHEAD STREET
SUITE 300
CHARLOTTE, NC 28208
0)704-334-5348
M704.334-0078
WWW.WKDICKSON.COM
W.WKDICKSON.COM
NC LICENSE NO.F-0374
"9M. C:.. MJ•
Jan 10 2022 7:08 AM
r REVISION RECORD
1
oo1-
NOTE ADDED TO CAP LAGOON INFLUENT FORCE MAIN
RESTRAINED PIPE ADDED FOR VALVE
DESCRIPTION
_
a
- -
2_)
WASTEWATER TREATMENT AND DISPOSAL FOR THE CITY OF SOUTHPORT
DRAWING TIT
INFLUENT FORCEMAIN STA 20+00 TO 30+00
J
PROD. MGR.
DESIGN BY:
DRAWN BY:
PROJ. DATE:
TCH
DK
DK
2021
DRAWING NUMBER:
C25
WKD PROJ. NO.:
20170253.00. W L

DUMPSTER
10' X 10' SLAB
10' X 10' SLAB
4
AL MINUM LADDER C-/
(TY . 2)
29' 6"
J
SLIDE GATE WITH
HANDWHEEL (TYP.)
ODOR
CONTROL
SYSTEM
0
SCREENINGS
CONVEYOR
SLIDING COVER FOR
ROTARY DRUM SCREEN
12"BYPASS
CONNECTION
C
REMOVABLE GRATING
FOR MANUAL SCREEN
ACCESS.
APPROX. 5-'3" X 5'-0"
ALUMINUM
GRATING (TYP.)
LLLLLLL LE
LLLLLLLN_
LLLLL
UULE
EEEEEEEEE
LLLLLLLLL
EEEEEEEEELLLLLLLLL
ELL
LLLLLLLLL
LLLL
EEEE LLL
GRIT C AMBER
SLE GATE G.3
SEE NOTE 4
4" COUPLING
SLIDE GATE G.5
SLIDE GATE G.4
SL DE GATE as
mmmmm
EMMM.
mmmmm
mm AIM
5' WIDE,
REMOVABLE
ACCESS
PLATFORM
(TYP. 2), SEE
NOTE 8
GUIDE RAIL
W.'
BRACKET TO
BE MOUNTED
TO WALKWAY
JIB CRANE W/
14' SPAN AND
HOIST
SEE NOTE 4
v
GUIDE TRACK
FOR SCREEN
COVER
DIAMOND TREAD
ALUMINUM FLOOR
PLATE (TYP.)
SLIDE GATE G 2
EEE•LEEL
LL
LELLLLLLL `
LLLLLLLLL (� LLLLL E E
L��_EEEEE 2 BYPASN:
E CONNECTION:
LL,L± LEE
LLLLLLLLLLL-LLLLL E EEL
ELLLLLLLLLLLLEEE
SLIDE LLLLLLL _ELLLL_E LLL LLLLLLLLLLLLLLLL
GATE G.1
2" WATER LINE
CONNECTION
TO ODOR
CONTROL
3'-6"
EEEEEEEL EEEEEEEEEEEEEEE
EeechEEPEEEEEEE
LLLL
12" FLG 90
DEGREE
BEND (TYP.)
LLLLLLLLL
LL
Nike
12"X8"FLG 90 DEG'
REDUCING BEND
8" V-PORT BALL VALVE L
M T RIZED ACTUAT R
ES FLS PLUG,
VALVE, (TYP.)
REFRIGERATED INFLUENT
SAMPLER
6 X6'
COMBINATION
BOX
ALUMINUM STAIRS W/ HANDRAIL.
12 RISERS @ 8" PER RISE, 11"
TREADS, 3' z 3' PLATFORM
5' X 2' CONCRETE PAD.
T.O.P. ELEVATION TO BE
EVEN WITH ASPHALT
3-I
FRO
HYDRANT (TYP.)
e �
P`
— 4" DIP
22.5'
BEND
E
NPW
4" DIP 45 DEGREE
BEND (TYP.)
6" X 4" DIP
REDUCER
6" DIP 22.5 BEND
GRIT WASHER
1" WATER LINE
FOR PROCESS
CONNECTIONS
GRIT DISCHARGE
CONCRETE SLAB
6" PVC DRAIN
4/17
INFLUENT PS,
SEE SHEET M6
ALUMINUM STAIRS, 5 TREADS
@11"X8" RISEW/3'x3'
PLATFORM
3 FT WIDE
CONCRETE
SIDEWALK
ELECTRICAL
BUILDING
32'
HEADWORKS - PLAN (ABOVE GRATING)
SCALE: 1 /4" = 1'=0"
NOTES:
1. CONTRACTOR TO ROUND ALL CHANNEL AND BASIN CORNERS WITH 1 FT RADIUS MINIMUM OF GROUT.
2. CONTRACTOR TO GROUT CHANNEL TO MANUFACTURER'S RECOMMENDATIONS
3. ALL ABOVE GROUND POTABLE WATER LINES TO BE INSULATED AND HEAT TRACED.
4. 22" X 36" SECTION OF GRATING TO BE REMOVABLE FOR VALVING ACCESS.
5. SLIDE GATES TO BE CAST IN CHANNEL PER MANUFACTURER'S INSTRUCTIONS.
6. ALL PIPES WITH WALL PENETRATIONS TO BE SEALED WITH LINKSEAL ON INSIDE WALL FACE.
7. CONTRACTOR TO PROVIDE LAYOUT DRAWING OF PROPOSED SCREEN IN CHANNEL TO DEMONSTRATE MECHANICAL SCREEN SUPPORTS
AND APPURTENANCES HAVE NO CONFLICTS WITH OVERFLOW CHANNEL.
8. CONTRACTOR TO PROVIDE DESIGN FOR WALKWAY OVER GRIT CHAMBER. DESIGN TO BE SEALED BY STRUCTURAL ENGINEER. PUMP
BRACKETS TO BE MOUNTED TO ACCESS PLATFORM.
FINAL DESIGN - NOT RELEASED FOR CONSTRUCTION
D CKSON
community Infrastructure consultants
1213 W. MOREHEAD STREET
SUITE 300
CHARLOTTE, NC 28208
0)704-334-5348
(1)704-334-0078
W W W.WKDICKSON.COM
NO LICENSE NO.F-0374
WASTEWATER TREATMENT AND DISPOSAL FOR THE CITY OF SOUTHPORT
DRAWING TITLE:
HEADWORKS - PLAN (ABOVE GRATING)
PROD. MGR.
DESIGN BY:
DRAWN BY:
PROD. DATE:
TCH
SEG
GCH
2021
DRAWING NUMBER:
M1
WKD PROJ. NO.:
20170253.00.WL

PROPOSED SAMPLER
PROPOSED ALUMINUM HANDRAIL
12 DIP FLG PLUG VALVE
T.O.W. EL. 58.00
C.L. EL. 56.00
12" COUPLING (TYP.)
EL. 52.50
12" MAGNETIC
FLOW METER,
SEE NOTE 1
C.L. EL. 44.50
EL.
EL.
PROPOSED 12" DIP FLANGED
90' BEND
PROPOSED 8" DIP FLANGED
90" BEND
PROPOSED 8" DIP V-PORT BALL
VALVE W/ MOTORIZED ACTUATOR
PROPOSED 12"X8" DIP FLANGED
90° REDUCING BEND
12" MAGNETIC
FLOW METER,
SEE NOTE 1
PROPOSED 12" DIP
MJ RJ 90' BEND
PROPOSED 12" DIP
MJ RJ PLUG VALVE
PROPOSED 12"X12"
DIP MJ RJ TEE
C.L. EL. 44.50
SECTION - HEADWORKS COMBINATION BOX
EL. 50.50
SCALE: 3/16" = 1'-0"
12"DIP FLG 90
DEGREE BEND
EL. 55.50
12" DIP FLG
PLUG VALVE
EL. 58.00
MIXING BOX NOTE:
1. CONTRACTOR TO PROVIDE
FLANGED BY PLAIN END "SPOOL
PIECE" FOR INSTALLATION WHEN
FLOW METER IS OUT OF SERVICE.
ANCHOR PER
MANUFACTURER'S
RECOMMENDATIONS
EL. 52.50
T'
PROPOSED PVC 90° BEND (TYP.)
PROPOSED VERTICAL WALL
SUPPORT, AS NEEDED. SEE
DETAIL, SHEET D5
ELECTRICAL CONTROL PANEL
WATER PANEL
NUTRIENT RESERVOIR
WATER INLET, 1" UNIVERSAL FLANGE
EL. 50.50
8" X 2" SCH 80
PVC WYE
INV. 46.50 @ WYE
12" DIP BYPASS
C.L. EL. 44.50 (
ALUMINUM LADDER
4" SS PUMP DISCHARGE (TYP.)
1.5" PVC FLUIDIZING LINE —
-1 1 1=1 11=1 11=11 1 1 1
8" THICK CONCRETE SLAB
I I 2" SCH 80 PVC DRAIN
II
REMOVABLE SECTION
FOR VALVE ACCESS
(TYP.)
CL_54.25
):ue�*•wurnx h:`..S.nw+>, . wa.. iS?�P+E„ v .RA.�T.�T.O INFQLU ENT PS
5 3"
SECTION - ODOR CONTROL
SCALE: 3/8" = 1'-0"
7 SEE NOTE 1
PROPOSED ALUMINUM
FLOOR PLATE
EL. 58.00
EL. 56.75
GROUT (TYP)
EL. 52.50
NOTES:
1. PVC CONNECTION TO ALUMINUM
PLATFORM TO FORM AIR TIGHT
SEAL.
BYPASS
EL. 50.25
JIB CRANE W/ 14' SPAN
PER SPECS
ALUMINUM GRATING, TYP.
1.5" PVC FLUIDIZING
LINE (FUTURE)
HOIST
r EXTENDED CONCRETE
EL. 55.00
.°J
WEIR EL. 50.50
DL 0 u
1/4" THICK ALUMINUM WEIR
PLATE W/ 2" x 1-1/8"
SLOTTED OPENINGS AND
1" DIA. S.S. BOLTS (TYP.)
WEIR DETAIL
SCALE: 3/8' = t'-0"
0 0
NOTE'.
1. 12" BYPASS CONNECTION SHOWN OUT OF POSITION FOR
REFERENCE. ARRANGEMENT, FITTINGS, AND VALVING IS
TYPICAL OF BOTH CONNECTIONS.
}
ALUMINUM WEIR PLATE.
SEE DETAIL, THIS SHEET
SECTION-HEADWORKS
SCALE: 3/8" = 1'-0"
BOTTOM EL. 42.50
EL. 48.50
FINAL DESIGN - NOT RELEASED FOR CONSTRUCTION
D CKSON
community Infrastructure consultants
1213 VJ. MOREHEAD STREET
SUITE 300
CHARLOTTE, NC 28208
/5704-334-5348
(1)704-334-0078
W W W.WKDICKSON.COM
NC LICENSE NO.F-0374
Jan 7 2022
PROFESSIONAL SEAL
WASTEWATER TREATMENT AND DISPOSAL FOR THE CITY OF SOUTHPORT
DRAWING TITLE:
HEADWORKS - SECTIONS
PROD. MGR.
DESIGN BY:
DRAWN BY:
PROJ. DATE:
TCH
SEG
GCH
2021
DRAWING NUMBER:
M3
WKD PROJ. NO.:
20170253.00.WL

ATTACHMENT 3
CONTRACT DOCUMENTS AND SPECIFICATIONS
for
Wastewater Treatment and
Disposal for the City of
Southport
January 7, 2022
WKD #20170253.00.WL
DWI Project No.: CS370714-03
Prepared for
Brunswick County
PO Box 249
Bolivia, NC 28422
Engineer Seal
Plans & Specifications
Prepared by
W.K. Dickson & Co., Inc.
300 N. Third Street Suite 301
Wilmington, NC 28401
WKD Phone [phone]
NC License No. F-0374
FINAL SPECIFICATIONS
— FOR REVIEW PURPOSES ONLY —
NOT RELEASED FOR CONSTRUCTION
..•�p N CAR�
..
o O �1 /.,
Jan 7 2022 11:34 AM

SECTION 09 90 00
PAINTING AND COATING
PART 1 GENERAL
1.1 SUMMARY
A. Section includes surface preparation and field application of paints, stains, varnishes, and
other coatings.
B. Items to be painted include but are not limited to ductile iron piping that is exposed to the
atmosphere or submerged in wastewater.
C. Items to be touched up include any item where the factory finish has been scratched or
cracked during shipment, installation, or other construction related activities and shall be
repaired per the manufacturer's instructions.
1.2 REFERENCES
A. ASTM International:
1. ASTM D 16 - Standard Terminology Relating to Paint, Varnish, Lacquer, and
Related Products.
2. ASTM D4442 - Standard Test Methods for Direct Moisture Content
Measurement of Wood and Wood -Base Materials.
3. ASTM E84 - Standard Test Method for Surface Burning Characteristics of
Building Materials.
B. National Fire Protection Association:
1. NFPA 255 - Standard Method of Test of Surface Burning Characteristics of
Building Materials.
C. Painting and Decorating Contractors of America:
1. PDCA - Architectural Painting Specification Manual.
D. SSPC: The Society for Protective Coatings:
1. SSPC - Steel Structures Painting Manual.
E. Underwriters Laboratories Inc.:
1. UL 723 - Tests for Surface Burning Characteristics of Building Materials.
1.3 DEFINITIONS
A. Conform to ASTM D16 for interpretation of terms used in this section.
1.4 SUBMITTALS
A. Section 01 22 01 — Electronic Project Management System and Section 01 33 01 -
Submittal Procedures EPMS: Requirements for submittals.
B. Product Data: Submit data on finishing products.
C. Manufacturer's Installation Instructions: Submit special surface preparation procedures
and substrate conditions requiring special attention.
Wastewater Treatment and Disposal for the City of Southport
Brunswick County
WKD Project Number: 20170253.00.WL
Painting and Coating
09 90 00 - 1

1.5 CLOSEOUT SUBMITTALS
A. Section 01 70 00 - Execution and Closeout Requirements Closeout procedures.
B. Operation and Maintenance Data: Submit data on cleaning, touch-up, and repair of
painted and coated surfaces.
1.6 QUALITY ASSURANCE
A. Surface Burning Characteristics:
1. Fire Retardant Finishes: Maximum 25/450 flame spread/smoke developed index
when tested in accordance with ASTM E84.
1.7 QUALIFICATIONS
A. Manufacturer: Company specializing in manufacturing products specified in this section
with minimum three years documented experience.
B. Applicator: Company specializing in performing work of this section with minimum
three years documented experience.
1.8 DELIVERY, STORAGE, AND HANDLING
A. Deliver products to site in sealed and labeled containers; inspect to verify acceptability.
B. Container Label: Include manufacturer's name, type of paint, brand name, lot number,
brand code, coverage, surface preparation, drying time, cleanup requirements, color
designation, and instructions for mixing and reducing.
C. Paint Materials: Store at minimum ambient temperature of 45 degrees F and maximum of
90 degrees F, in ventilated area, and as required by manufacturer's instructions.
1.9 ENVIRONMENTAL REQUIREMENTS
A. Do not apply materials when surface and ambient temperatures are outside temperature
ranges required by paint product manufacturer.
B. Do not apply exterior coatings during rain or snow when relative humidity is outside
humidity ranges, or moisture content of surfaces exceed those required by paint product
manufacturer.
C. Minimum Application Temperatures for Latex Paints: 45 degrees F for interiors; 50
degrees F for exterior; unless required otherwise by manufacturer's instructions.
D. Minimum Application Temperature for Varnish and Finishes: 65 degrees F for interior or
exterior, unless required otherwise by manufacturer's instructions.
E. Provide lighting level of 80 ft candle measured mid -height at substrate surface.
Wastewater Treatment and Disposal for the City of Southport
Brunswick County
WKD Project Number: 20170253.00.WL
Painting and Coating
099000-2

1.10 SEQUENCING
A. Section 01 10 00 — Summary: Work sequence.
B. Sequence application to the following:
1. Do not apply finish coats until paintable sealant is applied.
2. Back prime wood trim before installation of trim.
1.11 WARRANTY
A. Section 01 70 00 - Execution and Closeout Requirements: Product warranties and product
bonds.
B. Furnish five-year manufacturer warranty for paints and coatings.
1.12 EXTRA MATERIALS
A. Section 01 70 00 - Execution and Closeout Requirements: Spare parts and maintenance
products.
B. Supply 1 gallon of each color and type; store where directed.
C. Label each container with color, type, texture, and room locations in addition to
manufacturer's label.
PART 2 PRODUCTS
2.1 PAINTS AND COATINGS
A. Manufacturers: Paint.
1. Tnemec Company Inc. Company Inc.
2. Carboline
3. Sherwin & Williams
3.
2.2 COMPONENTS
A. Coatings: Ready mixed, except field catalyzed coatings. Prepare coatings:
1. To soft paste consistency, capable of being readily and uniformly dispersed to
homogeneous coating.
2. For good flow and brushing properties.
3. Capable of drying or curing free of streaks or sags.
B. Accessory Materials: Linseed oil, shellac, turpentine, paint thinners and other materials
not specifically indicated but required to achieve finishes specified; commercial quality.
C. Patching Materials: Latex filler.
D. Fastener Head Cover Materials: Latex filler.
Wastewater Treatment and Disposal for the City of Southport
Brunswick County
WKD Project Number: 20170253.00.WL
Painting and Coating
099000-3

PART 3 EXECUTION
3.1 EXAMINATION
A. Section 01 30 00 - Administrative Requirements: Coordination and project conditions.
B. Verify surfaces and substrate conditions are ready to receive Work as instructed by
product manufacturer.
C. Examine surfaces scheduled to be finished prior to commencement of work. Report
conditions capable of affecting proper application.
D. Test shop applied primer for compatibility with subsequent cover materials.
E. Measure moisture content of surfaces using electronic moisture meter. Do not apply
finishes unless moisture content of surfaces are below the following maximums:
1. Plaster and Gypsum Wallboard: 12 percent.
2. Masonry, Concrete, and Concrete Unit Masonry: 12 percent.
3. Interior Wood: 15 percent, measured in accordance with ASTM D4442.
4. Exterior Wood: 15 percent, measured in accordance with ASTM D4442.
5. Concrete Floors: 8 percent.
3.2 PREPARATION
A. Surface Appurtenances: Remove [or mask] electrical plates, hardware, light fixture trim,
escutcheons, and fittings prior to preparing surfaces or finishing.
B. Surfaces: Correct defects and clean surfaces capable of affecting work of this section.
Remove or repair existing coatings exhibiting surface defects.
C. Marks: Seal with shellac those which may bleed through surface finishes.
D. Impervious Surfaces: Remove mildew by scrubbing with solution of tri-sodium
phosphate and bleach. Rinse with clean water and allow surface to dry.
E. Aluminum Surfaces Scheduled for Paint Finish: Remove surface contamination by steam
or high pressure water. Remove oxidation with acid etch and solvent washing. Apply
etching primer immediately following cleaning.
F Asphalt, Creosote, or Bituminous Surfaces Scheduled for Paint Finish: Remove foreign
particles to permit adhesion of finishing materials. Apply compatible sealer or primer.
G. Insulated Coverings: Remove dirt, grease, and oil from canvas and cotton.
H. Concrete Floors: Remove contamination, acid etch and rinse floors with clear water.
1. Verify required acid -alkali balance is achieved. Allow to dry.
Wastewater Treatment and Disposal for the City of Southport
Brunswick County
WKD Project Number: 20170253.00.WL
Painting and Coating
099000-4

J. Copper Surfaces Scheduled for Paint Finish: Remove contamination by steam, high
pressure water, or solvent washing. Apply vinyl etch primer immediately following
cleaning.
K. Copper Surfaces Scheduled for Natural Oxidized Finish: Remove contamination by
applying oxidizing solution of copper acetate and ammonium chloride in acetic acid. Rub
on repeatedly for required effect. Once attained, rinse surfaces with clear water and allow
to dry.
L. Gypsum Board Surfaces: Fill minor defects with filler compound. Spot prime defects
after repair.
M. Galvanized Surfaces: Remove surface contamination and oils and wash with solvent.
Apply coat of etching primer.
N. Concrete and Unit Masonry Surfaces Scheduled to Receive Paint Finish: Remove dirt,
loose mortar, scale, salt or alkali powder, and other foreign matter. Remove oil and
grease with solution of tri-sodium phosphate; rinse well and allow to dry. Remove stains
caused by weathering of corroding metals with solution of sodium metasilicate after
thoroughly wetting with water. Allow to dry.
O. Plaster Surfaces: Fill hairline cracks, small holes, and imperfections with latex patching
plaster. Make smooth and flush with adjacent surfaces. Wash and neutralize high alkali
surfaces.
P Uncoated Steel and Iron Surfaces: Remove grease, mill scale, weld splatter, dirt, and rust.
Where heavy coatings of scale are evident, remove by hand wire brushing or
sandblasting; clean by washing with solution of water and TSP (Tri-Sodium Phosphate),
then thoroughly rinsed and allowed to dry. Uncoated surfaces should be prepared in
accordance with SSPC Guidelines (SP-2, 3, 5, 6 10) as required by the specified coating
for the intended service.
Q. Shop Primed Steel Surfaces: Hand tool clean per SSPC SP-2. Feather edges to make
touch-up patches inconspicuous. Clean surfaces with solvent. Prime bare steel surfaces.
Prime metal items including shop primed items.
R. Submerged Metal Surfaces: Submerged metal surfaces shall be blast cleaned in
accordance with SSPC SP-10 guidelines for Near -White Metal Blasting.
S. Nonsubmerged Metal Surfaces: Nonsubmerged metal surfaces in high humidity or
chemical environment shall be power washed in accordance with SSPC SP-12.
Following washing, power tool clean per SPCC SP-3 all rusting and abraded areas.
Surface shall be clean and dry prior to paint application.
T Interior Wood Items Scheduled to Receive Paint Finish: Wipe off dust and grit prior to
priming. Seal knots, pitch streaks, and sappy sections with sealer. Fill nail holes and
cracks after primer has dried; sand between coats.
Wastewater Treatment and Disposal for the City of Southport
Brunswick County
WKD Project Number: 20170253.00.WL
Painting and Coating
099000-5

U. Interior Wood Items Scheduled to Receive Transparent Finish: Wipe off dust and grit
prior to sealing, seal knots, pitch streaks, and sappy sections with sealer. Fill nail holes
and cracks after sealer has dried; sand lightly between coats.
V. Exterior Wood Scheduled to Receive Paint Finish: Remove dust, grit, and foreign matter.
Seal knots, pitch streaks, and sappy sections. Fill nail holes with tinted exterior paintable
caulking compound after prime coat has been applied.
W Exterior Wood Scheduled to Receive Transparent Finish: Remove dust, grit, and foreign
matter; seal knots, pitch streaks, and sappy sections with sealer. Fill nail holes with tinted
exterior caulking compound after sealer has been applied.
X. Glue -Laminated Beams: Prior to finishing, wash surfaces with solvent, remove grease
and dirt.
Y. Wood Doors Scheduled for Painting: Seal wood door top and bottom edge surfaces with
clear sealer.
Z. Metal Doors Scheduled for Painting: Prime metal door top and bottom edge surfaces.
3.3 EXISTING WORK
A. Extend existing paint and coatings installations using materials and methods compatible
with existing installations and as specified.
3.4 APPLICATION
A. Do not apply finishes to surfaces that are not dry. Allow applied coats to dry before next
coat is applied.
B. Apply each coat to uniform appearance. Apply each coat of paint slightly darker than
preceding coat unless specified otherwise.
C. Sand metal surfaces lightly between coats to achieve required finish.
D. Vacuum clean surfaces of loose particles. Use tack cloth to remove dust and particles just
prior to applying next coat.
E. Where clear finishes are required, tint fillers to match wood. Work fillers into grain
before set. Wipe excess from surface.
F Prime concealed surfaces of interior and exterior woodwork with primer paint.
G. Prime concealed surfaces of interior wood surfaces scheduled to receive stain or varnish
finish with gloss varnish reduced 25 percent with thinner
H. Finishing Mechanical And Electrical Equipment:
1. Refer to painting schedule of color coding and identification banding of
equipment, duct work, piping, and conduit.
2. Paint shop primed equipment.
Wastewater Treatment and Disposal for the City of Southport
Brunswick County
WKD Project Number: 20170253.00.WL
Painting and Coating
099000-6

3. Remove unfinished louvers, grilles, covers, and access panels on mechanical and
electrical components and paint separately.
4. Prime and paint insulated and exposed pipes, conduit, boxes, insulated and
exposed ducts, hangers, brackets, and collars and supports except where items are
shop finished.
5. Paint interior surfaces of air ducts visible through grilles and louvers with one
coat of flat black paint to visible surfaces. Paint dampers exposed behind louvers,
and grilles to match face panels.
6. Paint exposed conduit and electrical equipment occurring in finished areas.
7. Paint both sides and edges of plywood backboards for electrical and telephone
equipment before installing equipment.
8. Color code equipment, piping, conduit, and exposed duct work in accordance
with requirements indicated.
9. Reinstall electrical cover plates, hardware, light fixture trim, escutcheons, and
fittings removed prior to finishing.
3.5 FIELD QUALITY CONTROL
A. Section 01 40 00 - Quality Requirements and 01 70 00 - Execution and Closeout
Requirements.
3.6 CLEANING
A. Section 01 70 00 - Execution and Closeout Requirements Final cleaning.
B. Collect waste material which may constitute fire hazard, place in closed metal containers,
and remove daily from site.
3.7 PAINTING SCHEDULE
A. The schedule at the end of this Section lists prime coats and finish coats (including
intermediate coats) for the various surfaces. The paint covering shall not exceed the
manufacturer's recommended spread rate per gallon. The total dry film thickness of each
paint system shall be not less than the thickness specified in mils or as recommended by
the paint manufacturer. Film thickness shall include all prime and finish coats, except
filler for concrete block. Paint shall be applied in the number of coats specified or
required to obtain the specified thickness, but at least two field coats shall be applied to
all new surfaces, unless otherwise specified.
3.8 TYPES OF EXPOSURE
A. The following definitions shall apply to painting work.
1. Submerged: Surfaces submerged in or in direct contact with water, sewage or
sludge, as applicable, such as tanks, basins, wetwells, etc.
2. High Humidity or Chemical Environment: Interior and exterior surfaces subject
to splash or intermittent contact with water, sewage or sludge, or subject to
corrosive fumes, chemical contact or moisture; such as in pump stations,
chemical rooms, chlorine rooms and storage areas, equipment rooms,
Wastewater Treatment and Disposal for the City of Southport
Brunswick County
WKD Project Number: 20170253.00.WL
Painting and Coating
099000-7

laboratories, toilets, etc.
3. Normal: Surfaces not otherwise specified.
B. Shop Primed Metal:
1. In general, surfaces of steel, iron and equipment are specified to be shop primed.
Any such surface not shop primed shall be properly cleaned and field primed
with the specified primer. Shop primed metal surfaces shall be touched up in the
field with the specified primer before application of finish coats; except that
metal surfaces to receive chlorinated rubber paint system shall be given one field
coat of the specified primer whether shop primed or not. Surfaces where prime
coats are not compatible with finish coats shall be given a barrier coat approved
by the Engineer prior to application of finish coats.
C. Pipe Color:
1. The pipe color shall be as follows:
a. Potable Water- Blue
b. Sanitary Sewer/Force main — Green
c. Irrigation Force main- White
d. Mulberry WRF Effluent- Purple
D. OWNER to make final choices from color chart provided by Contractor. The contents
and direction of flow are to be stenciled on the piping in a contrasting color.
3.9 INSPECTION AND ACCEPTANCE
A. The Engineer reserves the right to inspect and approve painting work while in progress,
to stop work deemed to be improper or not in compliance with the specifications, and to
require the Contractor to stop all improper practices and promptly correct all defective or
deficient work. Successive coats in each system shall be tinted to facilitate inspection
during painting.
B. Final Inspection of painting will include examination of overall appearance and
measurement of dry film thickness. All defects or deficiencies shall be promptly
corrected to the satisfaction of the Engineer at no additional cost to the Owner.
Wastewater Treatment and Disposal for the City of Southport
Brunswick County
WKD Project Number: 20170253.00.WL
Painting and Coating
099000-8

Manufacturer System No.
Ferrous Metal, Submerged
Tnemec Coal Tar
Carboline
S-W
PPG
Urethane
Coal Tar Epoxy
Coal Tar Epoxy
Coal Cat Epoxy
Coats Prime Coat(s)
1
1
1
1
Series 1 Omnithane
Carboguard 893SG
Copoxy Shop Primer
Coal Cat 97-640
Ferrous Metal, Nonsubmerged, High Humidity or Chemical Environment
Tnemec Epoxy Urethane
Carboline Epoxy
S-W Epoxy
PPG Epoxy
1 Series 1 Omnithane
1 Carboguard 893SG
1 Macropoxy 646
1 95-245 Pitt -Guard
Ferrous Metal, Nonsubmerged, Normal, Interior and Exterior
Tnemec Alkyd Urethane
Carboline Alkyd
S-W Alkyd
PPG Alkyd
Mill (Bituminous) Coated Pipe
Tnemec
Carboline
S-W
PPF
1 Series 1 Omnithane
1 Carbocoat 115
1 Kem-Kromik Univ.
1 97-650 Multiprime
Use ferrous metal finish coats as required according to conditions
Use ferrous metal systems as required according to conditions
Use ferrous metal systems as required according to conditions
Alkyd 1 97-65 Multiprime
Coats
Finish Coat(s) Dry Mil Thickness
2 Series 446 PermaShield MCU
2 Bitumastic 300M
2 Tar Guard
2 97-640
2 N69 Hi -Build Epoxoline II
2 Carboline 890
2 Macropoxy 646
2 97-130 Aquapon
2 Series 1028 Enduratone
2 Carbocoat 139
2 Industrial Enamel VOC
2 7-282 Gloss
2 7-282 Gloss
Concrete — New Clarifiers Exposed Interior Concrete, Vertical Walls to 12-inches Below Water Level and Launder Channel
Tnemec
Carboline
S-W
PPF
Epoxy Mod. Mortar 1 100% Solid Epoxy Modified 1
Cementitious Mortar (up to 1/4")
(Equal to Tnemec Series 218)
Epoxy Mod. Mortar 1 To Be Determined 2
Epoxy Mod. Mortar 1 To Be Determined 2
Epoxy Mod. Mortar 1 To Be Determined 2
END OF SECTION
Wastewater Treatment and Disposal for the City of Southport
Brunswick County
WKD Project No. 20170253.00.WL
100% Solid Modified
Polyamine Epoxy
(Equal to Tnemec Series 22)
To be Determined
To be Determined
To be Determined
6 — 10 DMT/coat
6 — 10 DMT/coat
6 — 10 DMT/ coat
6 — 10 DMT/ coat
10.0 mil DFT/coat
11.0 mil DFT/coat
10.0 mil DFT/coat
10.0 mil DFT/coat
6.0 mil DFT/coat
6.0 mil DFT/coat
6.0 mil DFT/coat
5.9 mil DFT/coat
5.9 mil DFT/coat
30 -40 mil DFT/coat
Painting and Coatings
099000-9

ATTACHMENT 4
Design Calculations
Wastewater Treatment and Disposal for the City of Southport
WKD Project Number: 20170253.00.WL
For
Brunswick County
P.O. Box 249
Bolivia, North Carolina 28422
Issue Date:
November, 2021
MEN
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Nov 23 2021
Prepared by:
WWI<
ODICKSON
community Infrastructure consultants
W.K. Dickson & Co., Inc.
1213 West Morehead Street, Suite 300
Charlotte, North Carolina 28208
704-334-5348
Copyright ©, WK Dickson & Co., Inc. All rights reserved. Reproduction or use of the contents of this
document; additions or deletions to this document, in whole or in part, without written consent of WK
Dickson & Co., Inc., is prohibited. Only copies from the original of this document, marked with an original
signature and seal shall be considered to be valid, true copies
4wCA184448%.,

Site Characteristics
Daily Rate (From Agronomist Report)
Loading Rate (From Agronomist Report)
No. of Sprinklers
Total Flow to Spray Irrigation
Area of Spray Field
Sprinkler Characteristics
Make
Model
Flow rate
Allowable Flow Rate
Pressure at Sprinkler
Wetted Diameter
System Calculations
Min
Max
Resultant Min. Spacing
Resultant Max Spacing
Precipitation Rate
Application Depth
Time in Operation
WWI<
AIDICI<SON
Section 3
Spray Irrigation Operating Times
42,748 gpd
1 inch/week
112 Sprinklers
700 gpm
11.18 Acres
Rain Bird
4023-1
6.25 gpm
3.82 to 10.6 gpm
45 psi
92 to 125 ft
50% of wetted diameter
65% of wetted diameter
60 ft
80 ft
0.138 in/hr
0.2 in/dose
1.45 hr x 5 days a week
87 min. x 5 days a week
0.835561
50.13369 86631.02
Wastewater Treatment and Disposal for the City of Southport
87 20170253.00. WL

Section 3
Spray Application Loading
Phosphorous Loading:
Average Phosphorous Concentration= 4.38 Mg/L
Discharge Volume 42,862 Gallons per day
Uptake= 60 Pounds per Acre
Loading= 569 Pounds of Phosphorous per Year
Land Requirement 9.48 Acres 11.18 Acres Available
Mar-20
Apr-20
May-20
Jun-20
J u 1-20
Aug-20
Sep-20
Oct-20
Nov-20
Dec-20
Jan-21
Feb-21
Average
Facility AVG
Shallotte WWTP DMR Monthly Phosphorous
001 002
3.58 3.96
3.3 4.7
4.6 5.66
5.14 5.62
4.74 5.16
3.28 4.28
4.62 7.5
3.44 4.3
3.28 4.28
4.1 4.28
3.6 4.3
3.42 4.02
3.93 4.84
4.38 mg/L
Wastewater Treatment and Disposal for the City of Southport
20170253.00.WL

ATTACHMENT 5
Existing
Permit No.
Legend
Proposed Influent Force Main
Proposed Headworks Force Main
Proposed Diversion Force Main
— Proposed Effluent Force Main
Proposed Spray Force Main
Complaince Boundary
Proposed Infiltration Basins
Proposed Spray Irrigation Fields
g, Proposed Monitoring Well
----- Surveyed Wetland Boundary
Existing Monitoring Wells
Existing Force Main
Existing Spray Fields
L••1 Project Area Property Boundary
Property Boundary
Proposed
Infiltration
Basin A
Spreader
Discharge
Areas
Treatment
Proposed'
Infiltration
Basin
Compliance
Boundary
Proposed
Mulberry WWTP
(TYP•)
Existing
Facultative
Permit No.
Proposed
Mulberry
Headworks
S hallotte
Lagoon
WQ0000798-B
Proposed
Existing
Main
Force
Spray
Areas
Compliance
Boundary
(ryp•)
Proposed
Infiltration
Proposed
Access
Force
_Basins
Proposed
Force
Proposed
Force
Infiltration
(Yellow)
S pray
(Blue)
Diversion
raii-dropo�sed cces R.oa. �_
� .7C� iGi-:
arAll. 515PirlF ililliIIalli®E a■I
it
Proposed Truck— ,,
g St,- ® r ",,-
+�•o• +�rUnloadiri ation r
o�am '.
Proposed Dive sionWj.
._,
Force Main�r(Pink� =1l'A
��.. ■r� �� Mal iMOM t
„� Existing Spray Area
�1 • �•• '�.Pe'rm't No: WQ0000798 A
;I1 } ti.
' Permit Nod
Proposed
Connection
Lagoon
Piping
Proposed Influent
Force:Main (Green)
• a-
Main_
Connection
f1 1
Proposed Force
Bypass
\/VK Proposed Mulberry WWTP Overall
DKI(SOI\ Shallotte, North Carolina
community infrastructure consultants
0 500 1,000
1 in = 1,000 feet
2,000
Feet

Aerobic
Digester
Aeration
Sludge
Digester
Digester
Blowers
Legend
Proposed Headworks Force Main
Proposed Diversion Force Main
Proposed Effluent Force Main
Proposed Spray Force Main
----- Surveyed Wetland Boundary
L..: Project Area Property Boundary
Property Boundary
Building
Generator
1
Access
Parking
Disinfection
Station
Station
Oxidation Ditch
Oxidation
Motive
RAS/WAS
Pump Station
Station
Oxidation
Jet Motive
Oxidation
Blowers
Diversion
Force
(Yellow)
Force
S pray
Force
Headworks
Force
WK
II<SON
community infrastructure consultants
Proposed Mulberry WWTP Site Layout
Shallotte, North Carolina
0
25
50
100
Feet
1 in = 50 feet

ATTACHMENT 6
DOCUMENT 00 41 13
BID FORM - STIPULATED SUM
Proposal of [ 1 (hereinafter called "Bidder");
(Bidder)
organized and existing under the laws of the State of North Carolina, doing business as ( ) a corporation,
( ) a partnership, ( ) an individual for Brunswick County , (hereinafter called "Owner").
In compliance with your Invitation to Bid, Bidder hereby proposes to perform all work for the
construction of Wastewater Treatment and Disposal for the City of Southport, in strict accordance with the
Contract Documents, within the time set forth therein, and at the prices stated below.
By submission of this Bid, each Bidder certifies, and in the case of a joint Bid each party thereto
certifies as to his own organization, that this Bid has been arrived at independently, without consultation,
communication, or agreement as to any matter relating to this Bid with any other Bidder or with any
competitor.
Bidder hereby agrees to commence work under this contract on or before a date to be specified in the
Notice to Proceed and to fully complete the project within 540 consecutive calendar days thereafter. Bidder
further agrees to pay as liquidated damages, the sum of $1,250 each consecutive calendar day that the
Contractor fails to complete the work indicated thereafter.
Bidder agrees to perform all the work described in the Contract Documents for the following
Stipulated Sum price. Contract Documents — Are defined in the Agreement Form (Document 00 52 15) and
Standard General Conditions (Document 00 72 15). A brief description of the work included in each of the
Divisions is included in Section 01 10 00 Summary.
Item
No.
Item Description
Unit
Unit
Quantity
Unit Price
Total Bid Price
DIVISION 1
1
0.750 MGD WRF including all site
work, erosion control, piping, valves,
pumps, process equipment, buildings,
electrical, generator and paving.
L S
1
1.10
Influent Pump Station including all site
work, erosion control, piping, valves,
electrical, generator, odor control, and
paving.
LS
1
1.20
Influent Equalization Tank
LS
1
1.30
Undercut of unsuitable soils and
replacement with #57 Stone
CY
50
1.40
Select Fill
CY
500
1.50
SCADA Integrator Programming
Allowance
LS
1
70,000
Brunswick County
Wastewater Treatment and Disposal for the City of Southport
WKD Project Number: 20170253.00. WL
Bid Form
004113-1

Item
No.
Item Description
Unit
Unit
Quantity
Unit Price
Total Bid Price
DIVISION 1 SUBTOTAL:
DIVISION 2
Force Main: from Hwy 17 to Proposed Headworks
2.01
24" x 16" Tapping Sleeve and Valve
Connection to Existing 24" DI Force
Main
EA
3
2.02
Force Main Bypass Connection
including Check Valve Vault with 16"
Check Valve and 16" RJDIP and
Fittings
LS
1
2.03
16" RJDI Plug Valve with Valve Box
EA
3
2.04
16" RJ DIP Force Main, Bends, and
Fittings
EA
1,840
2.05
16" PVC Force Main
LF
3,460
2.06
16" C905 Fusible PVC By Directional
Drill
LF
340
2.07
Anti Seep Collar on 16" Pipe
EA
2
2 08
16" RJDI Connection into WWTP
Headworks
EA
1
2.09
Air Release Valve with Manhole
EA
4
2.10
Remove Valve and Cap 8" Influent
Force Main to Lower Lagoon
LS
1
Force Main: Headworks Connection 1 and 2
2 20
12" RJDI Force Main, Bends and
Fittings
LF
74
Force Main: Influent Pump Station to Anaerobic Selector
2.30
10" PVC Force Main
LF
2,507
2.31
10' RJDI Force Main, Bends and
Fittings
LF
388
2.32
Air Release Valve with Manhole
EA
2
Force Main: Plant Drain Pump Station to Existing Influent Pump Station Wetwell
2.40
8" PVC Force Main
LF
2,252
2.41
8"RJDI Force Main, Bends and
Fittings
LF
281
2.42
8" RJDI Plug Valve
EA
2
2.43
4" RJDI Plug Valve
EA
1
Brunswick County
Wastewater Treatment and Disposal for the City of Southport
WKD Project Number: 20170253.00. WL
Bid Form
004113-2

Item
No.
Item Description
Unit
Unit
Quantity
Unit Price
Total Bid Price
2.44
Air Release Valve with Manhole
EA
1
DIVISION 2
Force Main: Proposed Effluent Pump Station to High Rate Infiltration Basins
2.50
12" PVC Force Main
LF
6,916
2.51
12" RJDI Force Main, Bends and
Fittings
LF
860
2.52
12" Motor Actuated Gate Valve
EA
1
2.53
Air Release Valve with Manhole
EA
3
Force Main: Existing Spray Field Force Main to Proposed Spray Field
2.60
Cut and Cap Existing Header Pipe to
Spray Fields 1A and 1B
LS
1
2.60
12" PVC Force Main
LF
6,916
2.61
12" RJDI Force Main, Bends and
Fittings
LF
863
2.62
12" Motor Actuated Gate Valve
EA
1
2.63
Air Release Valve with Manhole
EA
4
Relocation of Small's Bog Bottom
2 70
Remove and Replant Smalls' Bog
Bottom Plants
EA
100
SF
DIVISION 2 SUBTOTAL:
DIVISION 3
3.01
Infiltration Basins including
excavation, dewatering, excavation,
seeding.
LS
1
3.02
Infiltration Basin Inlet Structures
EA
3
3.03
Groundwater Lowering Drain
LF
8224
3.04
Level Spreader Outfall
EA
2
3.05
Level Spreader Outfall Manholes
EA
2
3.06
Groundwater Lowering drain manholes
EA
14
3.07
Groundwater lowering system
flowmeters
EA
3
3.08
12" Motor Actuated Gate Valve
EA
1
3.09
Access Road
LF
14,862
3.10
Replacing access road drainage culverts
15" CPP
LF
21
Brunswick County
Wastewater Treatment and Disposal for the City of Southport
WKD Project Number: 20170253.00. WL
Bid Form
004113-3

Item
No.
Item Description
Unit
Unit
Quantity
Unit Price
Total Bid Price
3.11
Replacing access road drainage culverts
24" CPP
LF
39
3.12
Mulberry Branch Culvert
L S
1
3.13
Mulberry Branch wetland reseeding
AC
0.32
3.14
Electrical supply to Infiltration Basins
including conduit, conductors, panels
complete installed
L S
1
3.15
Irrigation Spray Field including piping,
fittings, and irrigation heads
L S
1
3.16
Electrical supply to Spray Field
including conduit, conductors, panels
complete installed
L S
1
DIVISION 3 SUBTOTAL:
TOTAL BASE BID:
Words
Numbers
MAJOR EQUIPEMENT ITEMS AND PRODUCTS
In connection with the bid for the Owner preferred major equipment and products as listed in Schedule A and
to be furnished and installed at the Owner's option for the listed additional cost, the bidder expressly agrees
to the provisions within the Instruction to Bidders and to the following:
1. That Bidders will provide an additive or deductive price for the substitution of the listed "Base Bid"
major equipment or products with "Alternative" Owner Preferred major equipment or products in the
spaces provided if any.
2. That all equipment prices stated in Schedule A include the preparation and submittal of detailed shop
drawings showing all modifications, if any, to the Contract Drawings necessary to accommodate
such equipment or products furthermore that the installed costs stated include all items for a
complete operating installation.
3. That all proposed major equipment or products listed in Schedule A "Base Bid" are of equal quality
and function to the identified Owner Preferred "Alternative" major equipment and products and will
perform satisfactorily and continuously.
4. That, if awarded a contract on this project, all equipment items or products are guaranteed by the
Bidder and his Surety to meet the performance requirements of the Contract Documents.
5. To allow for uniformity and consistency in the supplied major equipment, the Owner requires that all
variable speed controllers be of one manufacturer. The Bidder shall provide the name of a single
"Base Bid" manufacturer of all variable speed drives provided and installed in accordance with these
specs and provide a price adjusted by the addition in cost listed for "Alternative" Owner Preferred
major equipment and products if requested.
Brunswick County
Wastewater Treatment and Disposal for the City of Southport
WKD Project Number: 20170253.00.WL
Bid Form
004113-4

SCHEDULE A. TABULATION OF MAJOR EQUIPMENT ITEMS AND PRODUCTS
Specification
Description
Base Bid
Equipment or
Products Mfg.
"Alternative"
Owner
Preferred
Equip. or
Product Mfg
Addition/ Deduct
to Base Bid Price
for "Alternative
Owner Preferred
Equip. or Product"
43 32 64
Ultraviolet Disinfection
Equipment
Trojan
Technologies
44 42 33
Secondary Clarifiers
Veolia
46 51 47
Oxidation Ditch
Equipment
Veolia
46 61 46
Automatic Backwash Disc
Filter Equipment
Kruger
g
33 34 00
Air Release Valve
SRI D-025
33 11 00
Fire Hydrant Assembly
Mueller
Centrurion",
American
Darling "MK-
73, Clow
"Medallion"
33 34 00
Plug Valves
Dezurik,
Milliken
33 34 00
Valve Actuator
Beck,
EIM/Bettis,
Auma
26 29 15
Operator Interface
Terminal
C-more HMI
26 29 15
Programmable Logic
Controller
Square D
Schneider
Electric, M340
and Square D
Schneider
Brunswick County
Wastewater Treatment and Disposal for the City of Southport
WKD Project Number: 20170253.00.WL
Bid Form
004113-5

Electric
Momentum
Series
22
13
30
Variable Frequency Drives
(<75 HP)
Square D
Schneider
Electric, ABB,
Siemens
26
24
16
MCC, NEMA Starters,
Panel Boards and Switch
Boards, Heavy Duty rated
disconnects
Square D
Schneider
Electric
40
91
16
Flow Meter (Magnetic)
Krohne,
Siemans
44
31
21
Odor Control System
Evoqua Water
Technologies
26
36
00
Automatic Transfer Switch
ASCO,
Cummins
Power
Command
26
32
13
Diesel Generator
Cummins,
Caterpillar,
Detroit
TOTAL BASE BID
R$ )1
(Words) (Numbers)
TOTAL BASE BID with Alternate 1 -Owner Preferred Equip. or Product
R$ )]
(Words)
TOTAL BASE BID with Alternate 2 — Deduct Influent Equalization Tank
(Numbers)
[ ] 1($ )1
(Words)
Brunswick County
Wastewater Treatment and Disposal for the City of Southport
WKD Project Number: 20170253.00.WL
Bid Form
004113-6

Bidder acknowledges receipt of the following Addenda:
Addendum No. 1, dated , Signature
Addendum No. 2, dated , Signature
Addendum No. 3, dated , Signature
Addendum No. 4, dated , Signature
Addendum No. 5, dated , Signature
Respectfully submitted:
Business Name Business Address
Printed/Typed Name Signature
Title Date
Name of Licensing State and License Number Corporate (Partnership) Address
Telephone Number State of Incorporation
Seal - If Bid is by a Corporation
Attest:
Name
Title
Telephone Number
Note: For a valid bid, the Bid Form and Bid Bond must both be properly signed by the President of the
Brunswick County
Wastewater Treatment and Disposal for the City of Southport
WKD Project Number: 20170253.00.WL
Bid Form
004113-7

firm or an officer authorized to sign contracts for the firm.
Note: Per NC GS 143-128(d),
Single -prime contracts. — All bidders in a single -prime project shall
they have selected for the subdivision or branches of work for:
identify on their bid the contractors
Subdivision/Branch of Work
to be Performed
Subcontractor Name
License No.
Classification
(H/S/PU)
HVAC, ventilating and air
conditioning;
Plumbing;
Electrical; and
General (work not listed in
above categories):
Brunswick County
Wastewater Treatment and Disposal for the City of Southport
WKD Proj ect Number: 20170253.00. WL
Bid Form
004113-8

THIS PAGE INTENTIONALLY LEFT BLANK
Brunswick County
Wastewater Treatment and Disposal for the City of Southport
WKD Project Number: 20170253.00.WL
Bid Form
004113-9

ATTACHMENT 7
"General Decision Number: NC20210078 01/01/2021
Superseded General Decision Number: NC20200078
State: North Carolina
Construction Type: Heavy
Counties: Brunswick, New Hanover and Pender Counties in North
Carolina.
HEAVY CONSTRUCTION PROJECTS
Note: Under Executive Order (EO) 13658, an hourly minimum wage
of $10.95 for calendar year 2021 applies to all contracts
subject to the Davis -Bacon Act for which the contract is awarded
(and any solicitation was issued) on or after January 1, 2015.
If this contract is covered by the EO, the contractor must pay
all workers in any classification listed on this wage
determination at least $10.95 per hour (or the applicable
wage rate listed on this wage determination, if it is higher)
for all hours spent performing on the contract in calendar
year 2021. If this contract is covered by the EO and a
classification considered necessary for performance of work on
the contract does not appear on this wage determination, the
contractor must pay workers in that classification at least
the wage rate determined through the conformance process set
forth in 29 CFR 5.5(a)(1)(ii) (or the EO minimum wage rate,
if it is higher than the conformed wage rate). The EO minimum
wage rate will be adjusted annually. Please note that
this EO applies to the above -mentioned types of contracts
entered into by the federal government that are subject
to the Davis -Bacon Act itself, but it does not apply
to contracts subject only to the Davis -Bacon Related Acts,
including those set forth at 29 CFR 5.1(a)(2)-(60). Additional
information on contractor requirements and worker protections
under the EO is available at www.dol.gov/whd/govcontracts.
Modification Number Publication Date
0 01/01/2021
SUNC2011-059 08/26/2011
Rates Fringes
CARPENTER, Includes Form Work$ 13.98 0.69
ELECTRICIAN $ 15.41 3.13
LABORER: Common or General $ 9.21 0.00
LABORER: Pipelayer $ 12.87 2.21
OPERATOR:
Backhoe/Excavator/Trackhoe $ 14.71 0.00

OPERATOR: Bulldozer $ 14.63 0.00
OPERATOR: Loader $ 15.13 2.79
TRUCK DRIVER $ 13.12 1.89
WELDERS - Receive rate prescribed for craft performing
operation to which welding is incidental.
Note: Executive Order (EO) 13706, Establishing Paid Sick Leave
for Federal Contractors applies to all contracts subject to the
Davis -Bacon Act for which the contract is awarded (and any
solicitation was issued) on or after January 1, 2017. If this
contract is covered by the EO, the contractor must provide
employees with 1 hour of paid sick leave for every 30 hours
they work, up to 56 hours of paid sick leave each year.
Employees must be permitted to use paid sick leave for their
own illness, injury or other health -related needs, including
preventive care; to assist a family member (or person who is
like family to the employee) who is ill, injured, or has other
health -related needs, including preventive care; or for reasons
resulting from, or to assist a family member (or person who is
like family to the employee) who is a victim of, domestic
violence, sexual assault, or stalking. Additional information
on contractor requirements and worker protections under the EO
is available at www.dol.gov/whd/govcontracts.
Unlisted classifications needed for work not included within
the scope of the classifications listed may be added after
award only as provided in the labor standards contract clauses
(29CFR 5.5 (a) (1) (ii)).
The body of each wage determination lists the classification
and wage rates that have been found to be prevailing for the
cited type(s) of construction in the area covered by the wage
determination. The classifications are listed in alphabetical
order of ""identifiers"" that indicate whether the particular
rate is a union rate (current union negotiated rate for local),
a survey rate (weighted average rate) or a union average rate
(weighted union average rate).
Union Rate Identifiers
A four letter classification abbreviation identifier enclosed
in dotted lines beginning with characters other than ""SU"" or
""UAVG"" denotes that the union classification and rate were
prevailing for that classification in the survey. Example:
PLUM0198-005 07/01/2014. PLUM is an abbreviation identifier of
the union which prevailed in the survey for this
classification, which in this example would be Plumbers. 0198
indicates the local union number or district council number
where applicable, i.e., Plumbers Local 0198. The next number,
005 in the example, is an internal number used in processing
the wage determination. 07/01/2014 is the effective date of the
most current negotiated rate, which in this example is July 1,
2014.

Union prevailing wage rates are updated to reflect all rate
changes in the collective bargaining agreement (CBA) governing
this classification and rate.
Survey Rate Identifiers
Classifications listed under the ""SU"" identifier indicate that
no one rate prevailed for this classification in the survey and
the published rate is derived by computing a weighted average
rate based on all the rates reported in the survey for that
classification. As this weighted average rate includes all
rates reported in the survey, it may include both union and
non -union rates. Example: SULA2012-007 5/13/2014. SU indicates
the rates are survey rates based on a weighted average
calculation of rates and are not majority rates. LA indicates
the State of Louisiana. 2012 is the year of survey on which
these classifications and rates are based. The next number, 007
in the example, is an internal number used in producing the
wage determination. 5/13/2014 indicates the survey completion
date for the classifications and rates under that identifier.
Survey wage rates are not updated and remain in effect until a
new survey is conducted.
Union Average Rate Identifiers
Classification(s) listed under the UAVG identifier indicate
that no single majority rate prevailed for those
classifications; however, 100% of the data reported for the
classifications was union data. EXAMPLE: UAVG-OH-0010
08/29/2014. UAVG indicates that the rate is a weighted union
average rate. OH indicates the state. The next number, 0010 in
the example, is an internal number used in producing the wage
determination. 08/29/2014 indicates the survey completion date
for the classifications and rates under that identifier.
A UAVG rate will be updated once a year, usually in January of
each year, to reflect a weighted average of the current
negotiated/CBA rate of the union locals from which the rate is
based.
WAGE DETERMINATION APPEALS PROCESS
1.) Has there been an initial decision in the matter? This can
be:
* an existing published wage determination
* a survey underlying a wage determination
* a Wage and Hour Division letter setting forth a position on
a wage determination matter
* a conformance (additional classification and rate) ruling
On survey related matters, initial contact, including requests
for summaries of surveys, should be with the Wage and Hour
Regional Office for the area in which the survey was conducted
because those Regional Offices have responsibility for the
Davis -Bacon survey program. If the response from this initial
contact is not satisfactory, then the process described in 2.)
and 3.) should be followed.
With regard to any other matter not yet ripe for the formal

process described here, initial contact should be with the
Branch of Construction Wage Determinations. Write to:
Branch of Construction Wage Determinations
Wage and Hour Division
U.S. Department of Labor
200 Constitution Avenue, N.W.
Washington, DC 20210
2.) If the answer to the question in 1.) is yes, then an
interested party (those affected by the action) can request
review and reconsideration from the Wage and Hour Administrator
(See 29 CFR Part 1.8 and 29 CFR Part 7). Write to:
Wage and Hour Administrator
U.S. Department of Labor
200 Constitution Avenue, N.W.
Washington, DC 20210
The request should be accompanied by a full statement of the
interested party's position and by any information (wage
payment data, project description, area practice material,
etc.) that the requestor considers relevant to the issue.
3.) If the decision of the Administrator is not favorable, an
interested party may appeal directly to the Administrative
Review Board (formerly the Wage Appeals Board). Write to:
Administrative Review Board
U.S. Department of Labor
200 Constitution Avenue, N.W.
Washington, DC 20210
4.) All decisions by the Administrative Review Board are final.
END OF GENERAL DECISION

ATTACHMENT 8
MEMOR ANDUM
DICKSONir I
community infrastructure consultants
300 N. Third Street, Suite 301 Wilmington, North Carolina 28401' .
TO: Lauren Raup Plummer, PE
Division of Water Resources `�� �tiG�NE�Q �`•
FROM: Carter Hubard, PE ,��2igS C
Earl Bingham, PE '•••••...........•D
DATE: January 2022 Jan 7 2022 11:02 AM
PROJECT: WKD# 20170253.00.WL — Southport Wastewater Study and Design
RE: Shallotte WWTF — Influent Force Main Calculations
1.0 Purpose and Background
1.1 Project Purpose
The new regional wastewater treatment facility in Shallotte, NC will receive flow
from a proposed influent force main connection to the existing regional transmission
force main along US Highway 17. As part of the design of the new treatment facility,
WKD modeled the existing and proposed force mains and major lift stations to
determine proper sizing and the potential impacts to the upstream and downstream
wastewater infrastructure.
1.2 Model Development
During the alternative analysis performed during 2017/2018, WKD developed a
Bentley SewerGEMS model of the force mains and lift stations in Brunswick County,
which was calibrated based on operational data provided by Brunswick County.
Once the Shallotte alternative was selected and piping was designed, the model was
updated to include the proposed force main alignment and valving configuration.
Figure 1.1 displays the major lift stations and force mains that were included in the
design modeling, and Figure 1.2 displays the modeling at the Shallotte site.
1

Legend
Modeled Outfall
Modeled Pump
Modeled FM
PS
Ps
Throttling Valve
1
See Inset A
Inset A
‘and Fps ,
°a
'Pon
WIC
DICI<SOI4
cammwnry ia��as�ruuuu aonnm�ona
Figure 1.2
Shallotte WWTF
Shallotte Site Model
0 200 400
Feet
1 in = 400 ft

January 2022
Page 4 of 7
2.0 Force Main Modeling
The proposed force main and valving for the proposed Shallotte headworks were modeled
under several different scenarios to determine the necessary sizing and the potential
impacts on the upstream and downstream lift stations and force mains:
• Scenario 1 — This scenario is the existing piping situation with the regional transmission
force main pumping to the West Brunswick Regional Reclamation Facility and a
Shallotte WWTF diversion pump station force main capability to divert flow from
Shallotte WWTF to the regional system. The model is set to Shallotte WWTF influent
force main inactive, discharge of existing diversion force main inactive.
• Scenario 2 — This scenario is the proposed condition with a proposed regional Shallotte
WWTF influent force main active, and the Shallotte WWTF diversion force main active.
• Scenario 3 — This scenario is when the proposed Shallotte WWTF will shut off incoming
flow from the regional transmission force main. The model is set up as proposed
regional Shallotte WWTF influent force main inactive, discharge of diversion force main
active.
Influent flow to the Shallotte WWTF will be controlled via a throttling valve, which was
modeled as a restriction in the pipe network by a short segment of reduced diameter pipe at
the WWTF influent discharge. These scenarios were modeled with the three major upstream
lift stations (Carolina Shores, Seatrail and Ocean Isle Beach) running.
Figure 2.1 provides a key to interpreting the results displayed in Table 2.1, which are broken
down by pipe segment.
4

January 2022
Page 5 of 7
Figure 2.1 — Model Result Schematic
5

Ocean Isle Beach Lift Station
Seatrail Lift Station
Carolina Shores Lift Station
5 — Existing 24" to West Brunswick WRF
4 — Proposed 12" from Shallotte WWTF
3 —Proposed 16" check valve
2 — Proposed 16" to Shallotte WWTF
1 — Existing 24" from existing lift stations
Component
902
2066
1042
Flow (gpm)
O
4010
4010
~
5O
Scenario 1
N
00
O
Cr,
U7
O
N
00
Velocity
(fps)
O
0-N
2075
1043
Flow (gpm)
4002
N
N
IGOt
N
CW
FP
ell
O
Scenario 2
N
00
00
W
V
FP
V
2.9
Velocity
(fps)
Cr,
FJ
Cr,
975
Flow (gpm)
5480
2613
2867
2867
5O
Scenario 3
G.)
v
4.6
N
Velocity
(fps)
s}InsaJ iapoL\i — t'Z alas

January 2022
Page 7 of 7
3.0 Conclusion
The existing regional transmission system currently sends up to 4,010 to 5,480 gallons per
minute to the WBWRF outfall. With the proposed piping with a new force main that outfalls to
the proposed Shallotte WWTF headworks, the system will deliver 2,953 gpm to the proposed
Shallotte WWTF headworks and 1,071 gpm from the upstream pump stations to the WBWRF
and have capacity to send 2,932 gpm from the Shallotte WWTF diversion. The proposed
Shallotte WWTF outfall (pipe sizing, check valve, and control valve) provides a slight increase
in the pumping rates of the upstream pump stations and the Shallotte diversion pump station.