WQ0034762_More Information (Received)_20190416

4
April 16,2019
REC'EtVEDIDENR/DWR
NCDEQ Division of Water Resources
Water Quality Permitting APR 2 6 2019
1601 Mail Service Center
Raleigh,NC 27699-1601 Wattr Resources
Attn: Christyn L.Fertenbaugh,P.E. Ptrmitting Section
RE: Oyster Landing Phase IV
Sneads Ferry, Onslow County
Dear Christyn,
Please find the attached submittal package for this phase of this development which
proposes fourteen residential lots to be sewered by a short pressure manifold system. Please find
attached duplicates of the ASEA 04-16, pertinent mapping exhibits, FTSE 04-16, Developer's
Operational Agreement, pressure sewer modeling using EPANET2, specifications, and the plan.
Please consider these for permit issuance. Thank you in advance for your attention and patience
regarding this project. Please let me know if you have any questions or concerns.
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Cc Randy Hoffer
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Project Narrative
Project: Oyster Landing Phase IV Residential Subdivision, Sneads Ferry, NC
Date: 9/30/18
Introduction
Oyster Landing is an existing residential mixed use project comprised of individually
recorded lots and multi family condominiums. The project is located on North Carolina Highway
172 approximately one and one half miles east of its intersection with US Highway 17. The existing
subdivision is served sewer by ONWASA. There are fourteen proposed lots that are unable to be
served by the planned and permitted gravity sewer system, WQ 0034762. The finish elevation of
these lots is down slope of the collection system as much as ten feet. These lots will each need
individual grinder pump stations plumbed to a manifold that discharges into a manhole centrally
located in the aforementioned collection system. The system herein proposed will be installed by
the developer and conveyed for ownership and maintenance to the Homeowner's Association.
System Analysis
The pressure sewer system will be modeled and analyzed using EPANET2 software. The
performance of the proposed pumps and force main is dependent on the pressure developed in the
force main. The pressure varies according to the pump activity throughout the system. Given the
small system service population, the analysis will be conducted with all pumps running
simultaneously. The elevation gradient and the force main friction will be the only resistance
realized by the proposed pumps. Experience suggests that the typical prefabricated two horsepower
grinder pump station package connected to a reasonable length of two inch force main should suffice
to provide service to all fourteen lots. There is the possibility that the force may need to have
increased diameter as connecting pump stations accumulate.
Deliverables
The intention of this effort is to provide application for this system's permitting as a private
pressure sewer extension from the otherwise public,Pluris gravity sewer collection system within
this development. The State's permitting process requires the Alternative Sewer Extension
Application,ASEA 04-16 be completed and filed. This application requires full substantiation of
the proposal in accordance with the state's standards. Calculations,plans and specifications are so
included to supplement the application filing.
File:c:\jht hargrove\oyster landing\Oyster Landing Sewer Project Narrative.doc

State of North Carolina
DWR Department of Environmental Quality
Division of Water Resources
15A NCAC 02T.0300—ALTERNATIVE SEWER EXTENSION APPLICATION
Division of Water Resources INSTRUCTIONS FOR FORM:ASEA 04-16&SUPPORTING DOCUMENTATION
Plans,specifications and supporting documents shall be prepared in accordance with, 15A NCAC 02T.0100, 15A NCAC 02T
.0300, Division Policies and good engineering practices. Failure to submit all required items will necessitate additional
processing and review time,and may result in return of the application.
For more information, visit the Water Quality Permitting Section's collection systems website
General—When submitting an application,please use the following instructions as a checklist in order to ensure all required items are
submitted. Adherence to these instructions and checking the provided boxes will help produce a quicker review time and reduce the
amount of requested additional information.
Unless otherwise noted,the Applicant shall submit one original and one copy of the application and supporting documentation.
A. One Original and One Copy of Application and Supporting Documents
Required unless otherwise noted
B. Cover Letter(Required for All Application Packages):
® List all items included in the application package,as well as a brief description of the requested permitting action.
> Be specific as to the system type,number of homes served,flow allocation required,etc.
➢ If necessary for clarity,include attachments to the application form.
C. Application Fee(All New and Major Modification Application Packages):
® Submit a check or money order in the amount of$480.00 dated within 90 days of application submittal.
> Payable to North Carolina Department of Environmental Quality(NCDEQ).
D. Alternative Sewer Extension(Form: ASEA 04-16)Application(Required for All Application Packages):
❑ Submit the completed and appropriately executed application.
> If necessary for clarity or due to space restrictions,attachments to the application may be made.
❑ If the Applicant Type in Item 1.2 is a corporation or company,provide documentation it is registered for business with
the North Carolina Secretary of State.
❑ If the Applicant Type in Item I.2 is a partnership or d/b/a, enclose a copy of the certificate filed with the Register of
Deeds in the county of business.
❑ The project name in Item II.1 shall be consistent with the project name on the plans, specifications, flow acceptance
letters,agreements,etc.
❑ The Professional Engineer's Certification on Page 5 of the application shall be signed, sealed and dated by a North
Carolina licensed Professional Engineer.
❑ The Applicant's Certification on Page 5 of the application shall be signed in accordance with 15A NCAC 02T.0106(b).
Per 15A NCAC 02T .0106(c), an alternate person may be designated as the signing official if a delegation letter is
provided from a person who meets the criteria in 15A NCAC 02T.0106(b).
E. Section X&XI Attachment(If Applicable):
❑ If the project includes gravity sewer,pump stations with multiple pumps and force mains, include the Section X&XI
attachment(s).
F. Flow Tracking/Acceptance Form(Form: FTSE 04-16)(If Applicable):
❑ Submit the completed and appropriately executed Flow Tracking/Acceptance for Sewer Extension Permit Form from the
owners of the downstream sewers and treatment facility.
➢ The flow acceptance indicated in form FTSE 04-16 must not expire prior to permit issuance and must be dated less than
one year prior to the application date.
> Submittal of this application and form FTSE 04-16 indicates that owner has adequate capacity and will not violate G.S..
143-215.67(a).
➢ Intergovernmental agreements or other contracts will not be accepted in lieu of a project-specific FTSE 04-16.
INSTRUCTIONS FOR FORM:ASEA 04-16&SUPPORTING DOCUMENTATION Page 1 of 4

G. Engineering Plans(Required for All Application Packages):
❑ Per 15A NCAC 02T.0305(b)(1),submit two sets of detailed plan sets that have been signed,sealed and dated by a North
Carolina licensed Professional Engineer,and shall include at a minimum:
> Table of contents with each sheet numbered.
> A general location map with at least two geographic references and a vicinity map.
➢ Plan and profile views of the sewer extension as well as the proximity of the sewer extension to other utilities and natural
features
> Detail drawings of all items pertinent to the sewer extension(including clean-out locations)and pump stations.
> The location of all wells (including usage and construction details if available), streams (ephemeral, intermittent, and
perennial),springs,lakes,ponds,and other surface drainage features within 100 feet of the project.
> Minimum separations required per 15A NCAC 02T.0305(f), and where separations cannot be maintained, alternative
criteria per 15A NCAC 02T.0305(g).
> Minimum cover for sewer extensions required per 15A NCAC 02T.0305(f)must also be shown clearly on the plans.
> Nodes/Zones listed in calculations and computer models must be accurately reflected on the plans.
➢ Plans must include lot numbers,zones,approximate pump and top of wet well elevations,and pump model number and
capacity in a table format.
❑ Plans shall represent a completed design and not be labeled with preliminary phrases(e.g.,FOR REVIEW ONLY,NOT
FOR CONSTRUCTION,etc.)that indicate they are anything other than final plans. However,the plans may be labeled
with the phrase: FINAL DESIGN-NOT RELEASED FOR CONSTRUCTION.
H. Specifications(Required for All Application Packages):
❑ Per 15A NCAC 02T .0305(b)(3), submit specifications that have been signed, sealed and dated by a North Carolina
licensed Professional Engineer,and shall include at a minimum:
➢ Table of contents with each section/page numbered.
➢ Detailed specifications for pump stations(i.e.packaged grinder pump requirements,valves,controls,etc.)
> Site Work(i.e.,earthwork,clearing,grubbing,excavation,trenching,backfilling,compacting, fencing, seeding,etc.)
➢ Materials(i.q.,low pressure mains and laterals,force main,gravity,concrete,method of construction,etc.)
> Electrical(i.e.,control panels,transfer switches,automatically activated standby power source,etc.)
> Means for ensuring quality and integrity of the finished product in accordance with the Minimum Design Criteria,
including leakage and pressure testing for the sewer extension.
❑ Specifications shall represent a completed design and not be labeled with preliminary phrases (e.g., FOR REVIEW
ONLY,NOT FOR CONSTRUCTION,etc.)that indicate they are anything other than fmal specifications. However,the
specifications may be labeled with the phrase: FINAL DESIGN-NOT RELEASED FOR CONSTRUCTION.
❑ Specifications for standard equipment may only be omitted for municipalities with approved standard specifications,but
the use of the standard specifications must be noted on each sheet of the plans.
I. Engineering Calculations(All Application Packages):
❑ Per 15A NCAC 02T.0305(b)(2)and 15A NCAC 02T.0305(j)(1),submit engineering calculations that have been signed,
sealed and dated by a North Carolina licensed Professional Engineer,and shall include at a minimum:
➢ Friction/Total Dynamic Head calculations and system curve analysis(with one pump running,two pumps running,etc.)
➢ Pump selection information including pump curves, manufacturer's information, and recommended installation
guidelines.
> Pump station cycle times and pump run times.
> Minimum velocities in the sewer extension in accordance with the Minimum Design Criteria
> Flotation calculations for all units constructed partially or entirely below grade(i.e.pump stations)
❑ If computer models are provided to document system design,the model and corresponding node/zone nomenclature must
clearly and accurately reflect the plans and specifications.
Note that upon completion of the review process and prior to permit issuance,a request for the final plans and
specifications will be requested on digital media(CD,DVD,Jump Drive,etc.)for our records. You will be notified when
this information is requested,as the review may necessitate changes
INSTRUCTIONS FOR FORM:ASEA 04-16&SUPPORTING DOCUMENTATION Page 2 of 4

J. Downstream Sewer Evaluations(All Application Packages)
❑ Per 15A NCAC 02T.0305(b)(2)and 15A NCAC 02T.0304(h)(1),submit engineering calculations that have been signed,
sealed and dated by a North Carolina licensed Professional Engineer,for receiving collection systems:
❑ For connection to a gravity sewer,submit:
An evaluation of the gravity sewer based on peak flow from the proposed project and peak flows already tributary to the
existing gravity sewer. Provide calculations and detail how existing peak flows were determined.
❑ For connection to a pump station,submit:
An evaluation of the existing pump station to pump peak flow from the proposed project and peak flows already tributary
to the existing pump station. Provide calculations and detail how existing peak flows were determined.
❑ For connection to a force main/low pressures sewer,submit:
An evaluation of the existing system based on peak flows from the proposed project and peak flows already tributary to
the existing system. In addition,evaluate the ability of each pump station tributary to the existing system to pump against
additional head created by greater flows through the system. Evaluation may include alternative designs such as telemetry
to coordinate pumping between pump stations (provided sufficient storage is available). Also include an evaluation of
the discharge point of the existing force main/pressure sewer.
K. Site Maps(All Application Packages):
❑ Submit an 8.5-inch x 11-inch color copy of a USGS Topographic Map of sufficient scale to identify the entire project
area and closest surface waters.
➢ Location of the project(gravity sewer,pump stations&force main)
> Downstream connection points and permit number(if known)for the receiving sewer
❑ Include a street level map showing general project area.
L. Existing Permit(All Modification Packages):
❑ Submit the most recently issued existing permit.
❑ Provide a list of any items within the permit the Applicant would like the Division to address during the permit
modification(i.e.,permit description,flow allocation,treatment facility,etc.).
M. Power Reliability Plan(All Application Packages):
❑ Per 15A NCAC 02T.0305(h)(1)(D),submit documentation of power reliability for simplex/vacuum units.
❑ Per 15A NCAC 02T.0305(h)(1),submit documentation of power reliability for pumping stations.
> This alternative is only available for average daily flows less than 15,000 gallons per day
➢ It shall be demonstrated to the Division that the portable source is owned or contracted by the applicant and is compatible
with the station. The Division will accept a letter signed by the applicant(see 15A NCAC 02T .0106(b))or proposed
contractor,stating that"the portable power generation unit or portable,independently-powered pumping units,associated
appurtenances and personnel are available for distribution and operation of this pump station."
> If the portable power source or pump is dedicated to multiple pump stations, an evaluation of all the pump
stations' storage capacities and the rotation schedule of the portable power source or pump, including travel
timeframes,shall be provided in the case of a multiple station power outage.(Required at time of certification)
N. Final Environmental Document(If Applicable):
❑ Per 15A NCAC 02T .0105(c)(4), submit one copy of the environmental assessment and one copy of the final
environmental document(i.e.,Finding of No Significant Impact or Record of Decision).
❑ Include information on any mitigating factors from the Environmental Assessment that impact the design and/or
construction of the subject sewer.
O. Certificate of Public Convenience and Necessity(All Application Packages for Privately-Owned Public Utilities):
❑ Per 15A NCAC 02T .0115(a)(1)provide the Certificate of Public Convenience and Necessity from the North Carolina
Utilities Commission demonstrating the Applicant is authorized to hold the utility franchise for the area to be served by
the sewer extension,or
❑ Provide a letter from the North Carolina Utilities Commission's Water and Sewer Division Public Staff stating an
application for a franchise has been received and that the service area is contiguous to an existing franchised area or that
franchise approval is expected.
INSTRUCTIONS FOR FORM:ASEA 04-16&SUPPORTING DOCUMENTATION Page 3 of 4

P. Operational Agreements(Applications from HOA/POA and Developers for lots to be sold):
❑ Home/Property Owners' Associations
❑ Per 15A NCAC 02T.0115(c),submit the properly executed Operational Agreement(FORM:HOA).
❑ Per 15A NCAC 02T.0115(c),submit a copy of the Articles of Incorporation,Declarations and By-laws.
❑ Developers of lots to be sold
❑ Per 15A NCAC 02T.0115(b),submit the properly executed Operational Agreement(FORM:DEV).
THE COMPLETED APPLICATION AND SUPPORTING DOCUMENTATION SHALL BE SUBMITTED TO:
NCDEQ/DWR
WATER QUALITY SECTION
PERCS UNIT
By U.S.Postal Service: By Courier/Special Delivery:
1617 MAIL SERVICE CENTER 512 N.SALISBURY ST.SUITE 925
RALEIGH,NORTH CAROLINA 27699-1636 RALEIGH,NORTH CAROLINA 27604
TELEPHONE NUMBER: [phone]
INSTRUCTIONS FOR FORM:ASEA 04-16&SUPPORTING DOCUMENTATION Page 4 of 4

State of North Carolina
DWR Department of Environmental Quality
Division of Water Resources
15A NCAC 02T.0300—ALTERNATIVE SEWER EXTENSION APPLICATION
Division of Water Resources ASEA 04-16&SUPPORTING DOCUMENTATION
Application Number: (to be completed by DWR)
I. APPLICANT INFORMATION:
1. Applicant's name:Hoosier Daddy,LLC (company,municipality,HOA,utility,etc.)
2. Applicant type: ❑Individual ®Corporation ❑General Partnership ❑Privately-Owned Public Utility
❑Federal ❑State El Municipal ❑County
3. Signature authority's name:Lisa Beaman per 15A NCAC 02T.0106(b)
g ty
Title:Member
4. Applicant's mailing address:6025 Tarin Road
City:Wilmington State:NC Zip:28409-
5. Applicant's contact information:
Phone number:[phone] Email Address: e851isa(a,gmail.com
II. PROJECT INFORMATION:
1. Project name: Oyster Landing Subdivision-Phase IV Lots 60-73
2. Application/Project status: ❑Proposed(New Permit) ®Existing Permit/Project
If a modification,provide the existing permit number:WQ0034762 and issued date: July 24,2017
If new construction but part of a master plan,provide the existing permit number:WQ00
3. County where project is located: Onslow
4. Approximate Coordinates(Decimal Degrees):Latitude:34.53° Longitude:-78.48°
III. CONSULTANT INFORMATION:
1. Professional Engineer:James H.Fentress Jr. License Number:20643
Firm:James H.Fentress Jr.PE
Mailing address: 102 D Cinema Dr.
City:Wilmington State:NC Zip:28403-
Phone number:[phone] Email Address:jfentress64@,gmail.com
IV. WASTEWATER TREATMENT FACILITY(WWTF)INFORMATION:
1. Facility Name:North Topsail WWTF Permit Number:WQ0005849
Owner Name:Pluris,LLC
V. RECEIVING DOWNSTREAM SEWER INFORMATION:
1. Permit Number(s):W00017535
System Wide Collection System Permit Number(s):
Owner Name(s):Pluris,LLC
FORM:ASEA 04-16 Page 1 of 5

VI. GENERAL REQUIREMENTS
1. If the Applicant is a Privately-Owned Public Utility,has a Certificate of Public Convenience and Necessity been submitted?
®Yes ENo EN/A
2. If the Applicant is a Developer of lots to be sold,has a Developer's Operational Agreement(FORM: DEV)been submitted?
El Yes ❑No ®N/A
3. If the Applicant is a Home/Property Owners'Association,has an Operational Agreement(FORM:HOA)been submitted?
❑Yes ❑No ®N/A
4. Origin of wastewater:(check all that apply):
®Residential Owned ❑Retail(stores,centers,malls) El Car Wash
El Residential Leased El Retail with food preparation/service El Hotel and/or Motels
El School/preschool/day care El Medical/dental/veterinary facilities El Swimming Pool/Clubhouse
❑Food and drink facilities El Church ❑ Swimming Pool/Filter Backwash
El Businesses/offices/factories ❑Nursing Home El Other(Explain in Attachment)
5. Is/was an Environmental Assessment required under 15A NCAC 01C? El Yes ®No
If yes,submit the appropriate final environmental document(FONSI,ROD,etc.)
6. Nature of wastewater: 100%Domestic/Commercial %Other waste—specify:
%Industrial(See 15A NCAC 02T.0103(20))
7. Wastewater generated by project:3360 GPD(per 15A NCAC 02T.0114)
Has a flow reduction been approved under 15A NCAC 02T.0114(f)? El Yes El No
If yes,provide a copy of approval
8. Summarize wastewater generated by project:
Establishment Type Daily Design Flow a No.of Units Flow
Residential Lots 240 gal/day 14 3360 GPD
gal/ GPD
gal/ GPD
gal/ GPD
gal/ GPD
gal/ GPD
Total 3360 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).
b Per 15A NCAC 02T.0114(c),design flow rates for establishments not identified below shall be determined using available
flow data,water using fixtures,occupancy or operation patterns,and other measured data.
FORM:ASEA 04-16 Page 2 of 5

VII. PRESSURE SEWER DESIGN CRITERIA—15A NCAC 02T.0305:
1. Number of simplex pump stations(STEP tanks/effluent pumps,vacuum pits,etc.)provided: 14
2. What is the nearest 100-year flood elevation to the facility? feet mean sea level.
Is any of the proposed project located within the 100-year flood plain?❑Yes ®No
3. If Yes,are the following items provided per 15A NCAC 02T.0305(e):
Water-tight seals on all station hatches and manholes;and
Control panels vents extend two feet above the100-year flood plain elevation? El Yes El No ®N/A
If No,what measures are being taken to protect them against flooding?
4. Volume of storage in wet well above pump on elevation: 240 Gallons(include calculations)
5. How power reliability will be provided in accordance with 15A NCAC 02T.0305(h)(D):
Wet well storage provides 24 hours worth of wastewater storage;or
❑ Wet well storage provides wastewater storage based on power reliability and response times
(See"Policy for Meeting Reliability Requirements")
➢ Provide 3 years of power history date in the area.
➢ Provide response time to replace a failed pump. This would include travel time,time to replace pump,etc.
➢ Wet well storage would be based on whichever is greater.
All other pump stations meet the reliability requirements of 15A NCAC 02T.0305(h)(1): ❑Yes El No ❑N/A
6. Summarize simplex pump station design elements:
Design Element Plan Sheet Specification
Reference Reference
Emergency Contact Placard or Sticker C4.4 VIII 104
Screened Wet Well Vent C4.4 VIII 104
Restricted Access Details C4.4 VIII 104
Control Panel C4.4 VIII 104
High Water Alarms(Audible&Visual) C4.4 VIII 104
Valves(Check,Gate,etc) C4.4 VIII 104
Air Relief Valves C4.4 VIII 104
7. Summarize the pipe length by diameter to be permitted. Lines from a building to the septic or pump tank should be excluded.
(provide attachments if necessary)
Zone From Node To Node Diameter(in) Length(feet) #Pumps in Zone Pump Model
— Specified for Zone
1 8 1 2 460 14 MYERS VR2
8. Air release valve station locations per 15A NCAC 02T.0305(i)(provide attachments if necessary)
Air Release Valve# Station Plan Sheet Reference
FORM:ASEA 04-16 Page 3 of 5

VIII. SETBACKS&SEPARATIONS—(02B.0200& 15A NCAC 02T.0305(0):
1. Does the project comply with all separations found in 15A NCAC 02T.0305(f)&(g) ®Yes ❑No
➢ 15A NCAC 02T.0305(f)contains minimum separations that shall be provided for sewer systems:
Setback Parameter* Separation Required
Storm sewers and other utilities not listed below(vertical) 24 inches
Water mains(vertical-water over sewer including in benched trenches) 18 inches
Water mains(horizontal) 10 feet
Reclaimed water lines(vertical-reclaimed over sewer) 18 inches
Reclaimed water lines(horizontal-reclaimed over sewer) 2 feet
**Any private or public water supply source,including any wells,WS-I waters of Class I or
Class II impounded reservoirs used as a source of drinking water 100 feet
**Waters classified WS(except WS-I or WS-V),B,SA,ORW,HQW,or SB from normal
high water(or tide elevation)and wetlands(see item IX.2) 50 feet
**Any other stream,lake,impoundment,or ground water lowering and surface drainage
ditches 10 feet
Any building foundation 5 feet
Any basement 10 feet
Top slope of embankment or cuts of 2 feet or more vertical height 10 feet
Drainage systems and interceptor drains 5 feet
Any swimming pools 10 feet
Final earth grade(vertical) 36 inches
➢ 15A NCAC 02T.0305(g)contains alternatives where separations in 02T.0305(f)cannot be achieved.
➢ **Stream classifications can be identified using the Division's NC Surface Water Classifications webpage
➢ If noncompliance with 02T.0305(f)or(g),see Section IX of this application
2. Does the project comply with separation requirements for wetlands?(50 feet of separation) ®Yes ❑No El N/A
➢ See the Division's draft separation requirements for situations where separation cannot be meet
➢ No variance is required if the alternative design criteria specified is utilized in design and construction
➢ As built documents should reference the location of areas effected
3. Does the project comply with setbacks found in the river basin rules per 15A NCAC 02B .0200? ®Yes El No El N/A
➢ This would include Trout Buffered Streams per 15A NCAC 2B.0202
4. Does the project require coverage/authorization under a 404 Nationwide or El Yes ®No
individual permits or 401 Water Quality Certifications?
➢ Information can be obtained from the 401 &Buffer Permitting Branch
5. Does project comply with 15A NCAC 02T.0105(c)(6)(additional permits/certifications)? ®Yes ❑No
Per 15A NCAC 02T.0105(c)(6),directly related environmental permits or certification applications are being prepared,have
been applied for,or have been obtained. Issuance of this permit is contingent on issuance of dependent permits(erosion and
sedimentation control plans,stormwater management plans,etc.).
6. Does this project include any sewer collection lines that are deemed"high-priority?"
Per 15A NCAC 02T.0402,"high-priority sewer"means"any aerial sewer, sewer contacting surface waters,siphon,or sewer
positioned parallel to streambanks that is subject to erosion that undermines or deteriorates the sewer.
El Yes ®No
➢ If yes,include an attachment with details for each line,including type(aerial line,size,material,and location).
High priority lines shall be inspected by the permittee or its representative at least once every six-months and inspections
documented per 15A NCAC 02T.0403(a)(5)or the permitee's individual System-Wide Collection permit.
FORM:ASEA 04-16 Page 4 of 5

IX. CERTIFICATIONS:
1. Does the submitted system comply with I5A NCAC 02T,the Minimum Design Criteria for the Permitting of Pump Stations
and Force Mains(latest version).and the Grivit Sewer Minimum Desiun Criteria(latest version)as applicable?
® Yes ❑ No
If No,complete and submit the Variance/Alternative Design Request application(VADC 10-14)and supporting documents for
review. Approval of the request is required prior to submittal of the Fast Track Application and supporting documents.
2. Professional Engineer's Certification:
i, , rXNKJ,G.> N • ‘ € *Jt2 taS •._., attest that this application for
(Professional Engineer's name from Application Item III,!.)
. S,t4- _L.P1/4•4.4o: — t- \\ Lit.., (o --t 3
(facility name from Application Item II.l.)
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 1.13-215.6B, any person who knowingly makes any false
statement, representation, or certification in any 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 Engineer's seal,signature,and date: ::..\••`' CAR,,,,,,ueu,,,•,,�'ESS/SEAL q�
-.1.7. - ACALII:1 : -3 ..
J _ a IN :•
4‘''''C*\\ : (... 1
3. Applicant's Certification per 15A NCAC 02T.0106(1)):
I, Lisa Beaman-Member Hoosier Daddy, LLC _ _attest that this application for
(Signature Authority's name&title from Application Item I.3.)
Oyster Landing-Phase IV lots 60-73
(Facility name from Application Item II.I.)
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 he 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 arc not included,this application package
will be returned to me as incomplete. As the permittee for the pressure sewer system,I understand I will be required to
own,maintain,and operate all individual pump stations.
NOTE — In accordance with General Statutes I.1 215.6A and I.1;-_'I5.613, any person who knowingly makes any false
statement, representation, or certification in any 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 S25,000 per violation.
�1
Signature:_ ��_ �� Date: 3 —20 -Zo 1 ci
FORM:ASEA 04-16 Page 5 of 5

State of North Carolina
I Department of Environmental Quality
F
Division of Water Resources
Division of Water Resource.<_: Flow Tracking/Acceptance for Sewer Extension Applications
(FTSE 04-16)
Entity Requesting Allocation: Pluris LLC
Project Name for which flow is being requested: Oyster Landing Ph IV
More than one FTSE may be required for a single project if the owner of the WWTP is not responsible for all pump
stations along the mute of the proposed wastewater flow.
I. Complete this section only if you are the owner of the wastewater treatment plant.
a. WWTP Facility Name: Pluris North Topsail
b. WWTP Facility Permit#: WQ0005849
All flows are in MGD
c. WWTP facility's permitted flow 1.542
d. Estimated obligated flow not yet tributary to the WWTP 0.406840
e. WWTP facility's actual avg. flow 0.580156
f. Total flow for this specific request 0.024120
g. Total actual and obligated flows to the facility 0.998756
h. Percent of permitted flow used 66%
II. Complete this section for each pump station you are responsible for along the route of this
proposed wastewater flow.
List pump stations located between the project connection point and the WWTP:
(A) (B) (C) (D)=(B+C) (E)=(A-D)
Design Obligated,
Pump Average Daily Approx. Not Yet Total Current
Station Firm Flow** Current Avg. Tributary Flow Plus
(Name or Capacity, * (Firm/pf), Daily Flow, Daily Flow, Obligated Available
Number) MGD MGD MGD MGD Flow Capacity***
*The Firm Capacity of any pump station is defined as the maximum pumped flow that
can be achieved with the largest pump taken out of service.
**Design Average Daily Flow is the firm capacity of the pump station divided by a peaking
factor(pf)not less than 2.5.
***A Planning Assessment Addendum shall be attached for each pump station located
between the project connection point and the WWTP where the Available Capacity is<0.
Downstream Facility Name (Sewer): Pluris NTB- Sneads Ferry North
Downstream Permit Number: WQ0034486
Page 1 of 6
FTSE 04-16

r
III. Certification Statement:
I Randy Hoffer certify to the best of my knowledge that the addition of
the volume of wastewater to be permitted in this project has been evaluated along the route to the
receiving wastewater treatment facility and that the flow from this project is not anticipated to
cause any capacity related sanitary sewer overflows or overburden any downstream pump station
en route to the receiving treatment plant under normal circumstances, given the implementation
of the planned improvements identified in the planning assessment where applicable. This
analysis has been performed in accordance with local established policies and procedures using
the best available data. This certification applies to those items listed above in Sections I and II
plus all attached planning assessment addendums for which I am the responsible party.
Signature of this form indicates acceptance of this wastewater flow.
-, /J /�
Signing Official Signature D e
Page 2 of 6
FTSE 04-16

PLANNING ASSESSMENT ADDENDUM(PAA)
Submit a planning assessment addendum for each pump station listed in Section II where Available
Capacity is<0.
Pump Station(Name or Number):
Given that:
a. The proportion and amount of Obligated,Not Yet Tributary Daily Flow(C)accounts for
%/o and MGD of the Available Capacity(E) in Pump Station
; and that
b. The rate of activation of this obligated,not yet tributary capacity is currently approximately
MGD per year;and that
c. A funded Capital Project that will provide the required planned capacity, namely
is in design or under construction with
planned completion in ;and/or
d. The following applies:
Therefore:
Given reasonably expected conditions and planning information, there is sufficient justification
to allow this flow to be permitted, without a significant likelihood of over-allocating capacity in
the system infrastructure.
I understand that this does not relieve the collection system owner from complying with G.S.
143-215.67(a) which prohibits the introduction of any waste in excess of the capacity of the
waste disposal system.
Signing Official Signature Date
Page 3 of 6
FTSE 04-16

Instructions for Flow Tracking/Acceptance form(FTSE)and Planning Assessment Addendum(PAA)
Section I
a. WWTP Facility Name: Enter the name of the WWTP that will receive the wastewater flow.
b. WWTP Facility Permit#: Enter the NPDES or Non-Discharge number for the WWTP receiving the
wastewater flow.
c. WWTP facility's permitted flow, MGD: From WWTP owner's NPDES or Non-Discharge permit.
d. Estimated obligated flow not vet tributary to the WWTP, MGD: This includes flows allocated to
other construction projects not yet contributing flow to the collection system. Flows allocated through
interlocal agreements or other contracts not yet contributing flow to the collection system are also
included. For POTWs that implement a pretreatment program, include flows allocated to industrial
users who may not be using all of their flow allocation. Please contact your Pretreatment Coordinator
for information on industrial flow tributary to your WWTP.
As of January 15, 2008 the POTW should have reviewed flow allocations made over the last two
years and reconciled their flow records,to the best of their ability, so it is known how much flow has
been obligated and is not yet been made tributary to the WWTP, in accordance with local policies and
procedures employed by the reporting entity.
e. WWTP facility's actual avg. flow,MGD: Previous 12 month average.
f. Total flow for this specific request,MGD: Enter the requested flow volume.
g. Total actual and obligated flows to the facility,MGD Equals [d+e+f]
h. Percent of permitted flow used: Equals [(g/c)*100]
For example:
On January 15 a POTW with a permitted flow of 6.0 MGD,reported to the Regional Office that there
is 0.5 MGD of flow that is obligated but not yet tributary. The annual average flow for 2007 is 2.7
MGD.There is a proposed flow expansion of 0.015 MGD.
The first Form FTSE submitted after January 15,2008 may have numbers like this:
c. = 6.0 MGD
d. = 0.5 MGD
e. = 2.7 MGD
f. = 0.015MGD
g. = 3.215 MGD
h. = 53.6%
The next Form FTSE may be updated like this with a proposed flow expansion of 0.102 MGD:
c. = 6.0 MGD
d. = 0.515 MGD
e. = 2.73 MGD
f. =0.102 MGD
g. = 3.349 MGD
h. = 55.8%
Each subsequent FTSE form will be updated in the same manner.
Page 4 of 6
FTSE 04-16

Section II
List the pump station name or number and approximate pump station firm capacity, approximate design
average daily flow (A) approximate current average daily flow (B), and the obligated, not yet tributary
flow through the pump station (C) for each pump station that will be impacted by the proposed sewer
extension project. Calculate the total current flow plus obligated flow (D=B+C) and the available
capacity (E=A-D). Include the proposed flow for this project with other obligated flows that have been
approved for the pump station but are not yet tributary(C).
Firm capacity is the maximum pumped flow that can be achieved with the largest pump out of service as
per the Minimum Design Criteria.
Design Average Daily Flow is the firm capacity of the pump station divided by a peaking factor (pf) of
not less than 2.5.
If the available capacity(E)for any pump station is<0,then prepare a planning assessment for that pump
station if the system has future specific plans related to capacity that should be considered in the
permitting process.
(A) (B) (C) (D)=(B+C) (E)=(A-D)
Obligated,
Design Approx. Not Yet Total Current
Firm Average Current Avg. Tributary Flow Plus
Pump Station Capacity Daily Flow Daily Flow, Daily Flow, Obligated Available
(Name or Number) MGD (Firm/pf) MGD MGD Flow Capacity*
Kaw Creek PS 0.800 0.320 0.252 0.080 0.332 -0.012
Valley Road PS 1.895 0.758 0.472 0.135 0.607 0.151
Page 5 of 6
FTSE 04-16

Planning Assessment Addendum Instructions
Submit a planning assessment addendum for each pump station listed in Section II where available
capacity is<0.
A planning assessment for Kaw Creek PS (see example data above) may be performed to evaluate
whether there is significant likelihood that needed improvements or reductions in obligated flows will be
in place prior to activating the flows from the proposed sewer extension project.
If the system decides to accept the flow based on a planning assessment addendum, it is responsible to
manage the flow without capacity related sanitary overflows and must take all steps necessary to
complete the project or control the rate of flow to prevent sanitary sewer overflows.
The planning assessment may identify a funded project currently in design or construction, or a planned
project in the future not yet funded but in a formal plan adopted by the system. The system should
carefully weigh the certainty of successful timely project completion for any expansion, flow
management diversion or infiltration and inflow elimination projects that are the foundation of a planned
solution to capacity tracking and acceptance compliance.
For example:
Given that:
a. The proportion and amount of obligated,not yet tributary flow accounts for 24%and 0.080
MGD of the committed flow in Pump Station Kaw Creek;and that
b. The rate of activation of this obligated,not yet tributary capacity is currently approximately 0.01
MGD per year;and that
c. A funded capital project that will provide the required planned capacity,namely
is in design or under construction with
planned completion in ;and/or
d. The following applies:
The master plan and ten year capital plan contain recommended scope and funding for a capital project
entitled Kaw Creek Pump Station upgrade with funding planned in July 2014. This project is planned to
add 0.100 MGD to the firm capacity of the pump station by October 2015. Inclusion of this proposed
capital project as a condition of this Flow Tracking/Acceptance for Sewer Extension Permit Application
elevates this project's priority for funding and construction to be implemented ahead of the activation of
obligated, not yet tributary flows in amounts that exceed the firm pump station capacities identified in
Section II above.
Therefore:
Given reasonably expected conditions and planning information, there is sufficient justification to allow
this flow to be permitted, without a significant likelihood of over-allocating capacity in the system
infrastructure.
Page 6 of 6
FTSE 04-16

PLANNING ASSESSMENT ADDENDUM(PAA)
Submit a planning assessment addendum for each pump station listed in Section II where Available
Capacity is<0.
Pump Station(Name or Number):
Given that:
a. The proportion and amount of Obligated,Not Yet Tributary Daily Flow(C)accounts for
%and MGD of the Available Capacity(E)in Pump Station
; and that
b. The rate of activation of this obligated,not yet tributary capacity is currently approximately
MGD per year; and that
c. A funded Capital Project that will provide the required planned capacity,namely
is in design or under construction with
planned completion in ;and/or
d. The following applies:
•
Therefore:
Given reasonably expected conditions and planning information,there is sufficient justification to
allow this flow to be permitted, without a significant likelihood of over-allocating capacity in the
system infrastructure.
I understand that this does not relieve the collection system owner from complying with G.S. 143-
215.67(a) which prohibits the introduction of any waste in excess of the capacity of the waste
disposal system.
Signing Official Signature Date
Page 3 of 6
FTSE 04-16

Instructions for Flow Tracking/Acceptance form(FTSE)and Planning Assessment Addendum(PAA)
Section I
a. WWTP Facility Name: Enter the name of the WWTP that will receive the wastewater flow.
b. WWTP Facility Permit#: Enter the NPDES or Non-Discharge number for the WWTP receiving the
wastewater flow.
c. WWTP facility's permitted flow, MGD: From WWTP owner's NPDES or Non-Discharge permit.
d. Estimated obligated flow not yet tributary to the WWTP,MGD: This includes flows allocated to other
construction projects not yet contributing flow to the collection system. Flows allocated through
interlocal agreements or other contracts not yet contributing flow to the collection system are also
included. For POTWs that implement a pretreatment program, include flows allocated to industrial
users who may not be using all of their flow allocation. Please contact your Pretreatment Coordinator
for information on industrial flow tributary to your WWTP.
As of January 15,2008 the POTW should have reviewed flow allocations made over the last two years
and reconciled their flow records, to the best of their ability, so it is known how much flow has been
obligated and is not yet been made tributary to the WWTP, in accordance with local policies and
procedures employed by the reporting entity.
e. WWTP facility's actual avg. flow,MGD: Previous 12 month average.
f. Total flow for this specific request,MGD: Enter the requested flow volume.
g. Total actual and obligated flows to the facility,MGD Equals [d+e+f]
h. Percent of permitted flow used: Equals [(g/c)*100]
For example:
On January 15 a POTW with a permitted flow of 6.0 MGD, reported to the Regional Office that there
is 0.5 MGD of flow that is obligated but not yet tributary. The annual average flow for 2007 is 2.7
MGD. There is a proposed flow expansion of 0.015 MGD.
The first Form FTSE submitted after January 15,2008 may have numbers like this:
c. = 6.0 MGD
d. = 0.5 MGD
e. = 2.7 MGD
f. = 0.015 MGD
g. = 3.215 MGD
h. = 53.6%
The next Form FTSE may be updated like this with a proposed flow expansion of 0.102 MGD:
c. = 6.0 MGD
d. = 0.515 MGD
e. = 2.73 MGD
f. =0.102 MGD
g. = 3.349 MGD
h. = 55.8%
Each subsequent FTSE form will be updated in the same manner.
Page 4 of 6
FTSE 04-16

Section II
List the pump station name or number and approximate pump station firm capacity, approximate design
average daily flow(A)approximate current average daily flow(B),and the obligated,not yet tributary flow
through the pump station(C)for each pump station that will be impacted by the proposed sewer extension
project. Calculate the total current flow plus obligated flow(D=B+C)and the available capacity(E=A-D).
Include the proposed flow for this project with other obligated flows that have been approved for the pump
station but are not yet tributary(C).
Firm capacity is the maximum pumped flow that can be achieved with the largest pump out of service as
per the Minimum Design Criteria.
Design Average Daily Flow is the firm capacity of the pump station divided by a peaking factor(pf)of not
less than 2.5.
If the available capacity(E)for any pump station is<0,then prepare a planning assessment for that pump
station if the system has future specific plans related to capacity that should be considered in the permitting
process.
(A) (B) (C) (D)=(B+C) (E)=(A-D)
Obligated,
Design Approx. Not Yet Total Current
Firm Average Current Avg. Tributary Flow Plus
Pump Station Capacity Daily Flow Daily Flow, Daily Flow, Obligated Available
(Name or Number) MGD (Firm/pf) MGD MGD Flow Capacity*
Kaw Creek PS 0.800 0.320 0.252 0.080 0.332 -0.012
Valley Road PS 1.895 0.758 0.472 0.135 0.607 0.151
Page 5 of 6
FTSE 04-16

Planning Assessment Addendum Instructions
Submit a planning assessment addendum for each pump station listed in Section II where available capacity
is<O.
A planning assessment for Kaw Creek PS (see example data above)may be performed to evaluate whether
there is significant likelihood that needed improvements or reductions in obligated flows will be in place
prior to activating the flows from the proposed sewer extension project.
If the system decides to accept the flow based on a planning assessment addendum, it is responsible to
manage the flow without capacity related sanitary overflows and must take all steps necessary to complete
the project or control the rate of flow to prevent sanitary sewer overflows.
The planning assessment may identify a funded project currently in design or construction, or a planned
project in the future not yet funded but in a formal plan adopted by the system. The system should carefully
weigh the certainty of successful timely project completion for any expansion,flow management diversion
or infiltration and inflow elimination projects that are the foundation of a planned solution to capacity
tracking and acceptance compliance.
For example:
Given that:
a. The proportion and amount of obligated,not yet tributary flow accounts for 24%and 0.080
MGD of the committed flow in Pump Station Kaw Creek; and that
b. The rate of activation of this obligated,not yet tributary capacity is currently approximately 0.01
MGD per year;and that
c. A funded capital project that will provide the required planned capacity,namely
is in design or under construction with
planned completion in ;and/or
d. The following applies:
The master plan and ten year capital plan contain recommended scope and funding for a capital project
entitled Kaw Creek Pump Station upgrade with funding planned in July 2014. This project is planned to
add 0.100 MGD to the firm capacity of the pump station by October 2015. Inclusion of this proposed
capital project as a condition of this Flow Tracking/Acceptance for Sewer Extension Permit Application
elevates this project's priority for funding and construction to be implemented ahead of the activation of
obligated, not yet tributary flows in amounts that exceed the firm pump station capacities identified in
Section II above.
Therefore:
Given reasonably expected conditions and planning information, there is sufficient justification to allow
this flow to be permitted, without a significant likelihood of over-allocating capacity in the system
infrastructure.
Page 6 of 6
FTSE 04-16

STATE OF NORTH CAROLINA
COUNTY OF Permit No.
DEVELOPER'S OPERATIONAL AGREEMENT
This AGREEMENT made pursuant to G.S. 143-215.1 (di) and entered into this day of
, by and between the North Carolina Environmental Management
Commission, an agency of the State of North Carolina, hereinafter known as the COMMISSION; and
Hoosier Daddy,LLC , a corporation/general partnership registered/licensed to do
business in the State of North Carolina, hereinafter known as the DEVELOPER.
WITNESSETH:
1. The DEVELOPER is the owner of the certain lands lying in Onslow County, upon
which it is erecting and will erect dwelling units and other improvements, said development to be known
as Oyster Landing Phase IV,Lots 60-73 (hereinafter the Development).
2. The DEVELOPER desires, to construct a wastewater collection system with pumps, wastewater treatment
works, and/or disposal facilities (hereinafter Disposal System)to provide sanitary sewage disposal to serve
the Development on said lands.
3. The DEVELOPER has applied to the COMMISSION for the issuance of a permit pursuant to G.S. 143-
215.1 to construct,maintain, and operate the Disposal System.
4. The DEVELOPER has created or shall create unit ownership in said dwellings units, other improvements
and lands through filing of a Declaration of Unit Ownership (hereinafter Declaration), pursuant to Chapter
47C or 47F of the North Carolina General Statutes.
5. The DEVELOPER has caused to be formed or will cause to be formed at the time of filing of the
Declaration,the (Unit Owners' Association) (hereinafter
Association),a non-profit corporation organized and existing under and by the virtue of the laws of the State
of North Carolina, for the purpose, among others, of handling the property, affairs and business of the
Development; of operating, maintaining, re-constructing and repairing the common elements of the lands
and improvements subject to unit ownership, including the Disposal System; and of collecting dues and
assessments to provide funds for such operation, maintenance, re-construction and repair.
6. The COMMISSION desires to assure that the Disposal System of the Development is properly constructed,
maintained and operated in accordance with law and permit provisions in order to protect the quality of the
waters of the State and the public interest therein.
NOW, THEREFORE, in consideration of the promises and the benefits to be derived by each of the parties
hereto,the COMMISSION and DEVELOPER do hereby mutually agree as follows:
1. The DEVELOPER shall construct the Disposal System in accordance with the permit and plans and
specifications hereafter issued and approved by the COMMISSION, and shall thereafter properly operate
and maintain such systems and facilities in accordance with applicable permit provisions and law.
2. The DEVELOPER shall not transfer ownership and/or control of the Disposal System to the Association
until construction has been completed in accordance with the permit and approved plans, and the staff of
the Division of Water Resources has inspected and approved of the facilities. In order to change the name
of the permit holder, the DEVELOPER must request that the permit be reissued to the Association. The
request must include a copy of the Association Bylaws andDeclaration.
3. The DEVELOPER shall not transfer, convey, assign or otherwise relinquish or release its responsibility for
the operation and maintenance of its Disposal System until a permit has been reissued to the DEVELOPER's
successor.
FORM: DEV 11-17 Page 1 of 2

4. The DEVELOPER shall provide in the Declaration and Association Bylaws that the Disposal System and
appurtenances thereto are part of the common elements and shall thereafter be properly maintained and
operated in conformity with law and the provisions of the permit for construction, operation, repair, and
maintenance of the system and facilities. The Declaration and Bylaws shall identify the entire wastewater
treatment, collection and disposal system as a common element which will receive the highest priority for
expenditures by the Association except for Federal, State, and local taxes and insurance.
5. The DEVELOPER shall provide in the Declaration and Association Bylaws that the Disposal System will
be maintained out of the common expenses. In order to assure that there shall be funds readily available to
repair,maintain or construct the Disposal System,beyond the routine operation and maintenance expenses,
the Declaration and Association Bylaws shall provide that a fund be created out of the common expenses.
Such fund shall be separate from the routine maintenance funds allocated for the facility and shall be part
of the yearlybudget.
6. In the event the common expense allocation and separate fund are not adequate for the construction,repair,
and maintenance of the Disposal System, the Declaration and Association Bylaws shall provide for special
assessments to cover such necessary costs. There shall be no limit on the amount of such assessments, and
the Declaration and Bylaws shall provide that such special assessments can be made as necessary at any
time.
7. If a wastewater collection system and wastewater treatment and/or disposal facility provided by any city,
town, village, county, water and sewer authorities, or other unit of government shall hereinafter become
available to serve the Development, the DEVELOPER shall take such action as is necessary to cause the
existing and future wastewater of the Development to be accepted and discharged into said governmental
system, and shall convey or transfer as much of the Disposal System and such necessary easements as the
governmental unit mayrequire as condition of accepting the Development's wastewater.
8. Recognizing that it would be contrary to the public interest and to the public health, safety and welfare for
the Association to enter into voluntary dissolution without having made adequate provision for the continued
proper maintenance, repair and operation of its Disposal System, the DEVELOPER shall provide in the
Association Bylaws that the Association shall not enter into voluntary dissolution without first having
transferred its said system and facilities to some person, corporation or other entity acceptable to and
approved by the COMMISSION by the issuance of apermit.
9. The agreements set forth in numbered paragraphs 1, 2, 3,4, 5, 6, 7, and 8 above shall be conditions of any
permit issued by the COMMISSION to the DEVELOPER for the construction, maintenance, repair and
operation of the Disposal System.
10. A copy of this agreement shall be filed at the Register of Deeds in the County(ies)where the Declaration is
filed and in the offices of the Secretary of State of North Carolina with the Articles of Incorporation of the
Association.
IN WITNESS WHEREOF,this agreement was executed in duplicate originals by the duly authorized
representative of the parties hereto on the day and year written as indicated by each of the parties named below:
FOR THE ENVIRONMENTAL Hoosier Daddy, LLC
MANAGEMENT COMMISSION Name ofDEVELOPER
By: C'% ) - I Pn
Linda Culpepper (Signature)
Interim Director, Division of Water Resources
Lisa Beaman, Member
Print Name and Title
- b - 2ter
(Date) (Date)
FORM: DEV 11-17 Page 2 of 2

Onslow County, NC Tax Parcel Report Saturday, June 3, 2017
., {\}T
N
111
Y( ti_r
-- ti ,-
_
1
1 \f ../ { �\ /^ �• , ' )v.7._____ _
J ` /t
� t
t}rrl Y` I
OLLY ° 14t `�'� 4 G;
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+ .,t! �
WARNING:THIS IS NOT A SURVEY
Parcel Information
Map#: 747-13.40 Assessed Value: $479,760.00
PARID: 056251 Total Taxable Value: $479,760.00
NC PIN: 425802790342 Building Value: $0.00
Owner Name: HOOSIER DADDY LLC Land Value: $479,760.00
Property Address: HWY 172 Heated Living Sq Ft:
Property Description: NC 172&SR 1518 Year Built:
Subdivision: NO SUBDIVISION Adjusted Acres:
RECORDED
Neighborhood Code: 3212 Legal Acres: 159.27
City Limit: UNINCORPORATED Improvement Code: V
ONSLOW
Township: STUMP SOUND Book: 4139
Mailing Address: 6025 TARIN RD Page: 72
Mailing City,State,Zip: WILMINGTON NC 28409 Deed Date: 14-APR-14
Sale Code: 01 Deed Stamp Amount: 1550500.00
Number of Bedrooms Plat Book&Plat Page: NO-SUBDIV
WARNING:THIS IS NOT A SURVEY.
,01 coiir, Onslow County
Geographic Information Systems This map is prepared for the inventory of real property found within this jurisdiction,and is
'`�'• (GIS) compiled from recorded deeds,plats,and other public records and data.Users of this map
`_ 39 Tallman Street are hereby notified that the aforementioned public primary information sources should be
'a_ `�Q Jacksonville, NC 28540 , consulted for verification of the information contained on this map.The County and mapping
Cat ` company assume no legal responsibility for the information contained on this map.

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•
Oyster Landing Subdivision Pump Design Estimate
ENGINEER:JAMES FENTRESSJR.PE 20643
DATE:OCTOBER II,2011
OBJEC_TIYE
ESTIMATE A TYPICAL PUMP TO SERVE A SMALL FOUR LOT SUBDIVISION:
• FOURTEEN PUMPS WILL PUMP INTO A 460 FEET LONG 2IN.MANIFOLD
• MANIFOLD WILL TRAVERSE SLOPED SITE AND DISCHARGE TO A GRAVITY MANHOLE
• EPANET2 WILL RE USED TO MODEL THE MANIFOLD WITH ALL TWO HORSEPOWER GRINDER PUMPS ON
• EPANET2 RESULTS WILL RE SCRUTINIZED TO FINALIZE DESIGN
DESIGN FLOW
FORCE MAIN DE VFLOPMIINT DAISY PLO))
3360 GALLONS PER DAY,GPO.FOR BUILD OUT OF 14 RESIDENTIAL LOTS
3360 RFD FOR FORCE MAIN DESIGN
INDIVIDUAL PUMP OPTION FI.OLV PE-III•Per)I(4).P•r)
02 AVERAGE FLOW(GPM) P-SERVICE POPULATION(IN THOUSANDS)
4.35 PEAKING FACTOR NOTE:STATE REQD.MINIMUM PF IS 2.5
0.7 GPAI REQUIRED PUMP CAPACITY BASED ON PEAK FLOW
19.6 GPM REQUIRED PUMP CAPACITY RASED ON TIN.FORCE MAIN FLUSH VELOCITY(LARGEST DIA.RECEIVING SINGLE PUMP)
(LARGER CONTROLS)
FORCE MAIN DIMENSIONS
PROPOSED FORCE NIA IN DIA METER(IN.) 10 IISE 31N THROUGH ENTIRE LENGTH FOR ESTIMATE
PROPOSED FORCEMAIN LENGTH(FT.) 460
ADD.LENGTH FOR BENDS ALONG ROUTE(FT.) 23(ASSUME 51i,AMYL LENGTH FOR BENDS)
SUBTOTAL FORCE MAIN LENGTH WI.) 483
ELEVATION HEAD ALONG ROUTE(FT.) 13 L11•r•Per N4M•
1{00 T
A T{ li< Ift I 1:f7
1411
FORCE MAIN SYSTEM CURVE • vim a
FORCEMAIN ELEVATION 120 -"-" "'-- --'-"
FLOW FRICTIONHEAD HEAD TOTAL HEAD F —'— ""-`
fj
LGR LEEEII (FEET) (FEET g too ----— >e 3
• 0.0 13 13.0
5 OA 13 13.4 1 —1 —_—
l0 1.5 13 14.5 F 4. ___ __.__110
15 32 13 16.2
16
20 SA 13 IIA AO
25 12 13 211 10
30 IIA 13 24.4 70
35 152 13 25.2 0
40 19.5 13 32.5 0 —.0
45 242 13 37.2 0 10 M M 44 14 40
010..UP.,10..1.
PUMP CURVE SYSTEM OPERATION POINT
FLOW IIEAD 33 GPM '
)GPDD IFEEII 25 TDH \f011111111d,
D 131 ...-_ ..... _ ••``, CAR ,,`'+ ..
5 IJJ Pump Dtlt ) �\�ry'IN••••••••.. IA...0
10 130 Model MYFRS VR2 GRINDER .P
15 125 Size 20 Fir `" 0•e•OI.C'SSIQ,•••y w
20 119 Impeller GRINDER [ 9••
25 112 RPM 3450 t•
('a
30 103 Oudd 125• • •a SEAL • _ '.,
32 90 Volt, 230 2 64 4•;cc'•:::7
32 50 Crcle 60 tr •, +32 0 PAt,e 1 • jr•7
•
SYSTEM CURVE °fi,,it'tifIFE411e.\ea'
130
120 _ :.. ‘ ` •\
;� : ::::_ ::_ ::::::: r •
S 90 00 ::::::::::=:::::::::::
70
F 80 :■ : ::: .. ■■..
OF 30 ::::::::: ■■::::::::::::::::::.......IIIII= -PURw GUNK
20 : ..— VZ".— P� 't
10 111111111111111111111111111111111111111.111111111
0 5 10 15 20 25 30 35 40 45
• FLOW(GPM)

PROPOSED FORCE MAIN VELOCITY
VELOCITY'V'(fps)-0.409Q/D^2
WHERE D IS FORCE MAIN DIAMETER(in.) 2.0
Q IS FORCE MAIN FLOW(gpm) 33 ANTICIPATED
V(fps)— 3.370K
PROPOSED WETWELL VOLUME
DESIGN VOLUME BELOW INVERT TO BE CAPABLE OF PROVIDING CAPACITY AT BUILD OUT
DESIGN FLOW AT BUILD OUT 240 GPD
DESIGN HOURLY FLOW 10 GPH
DESIGN DAILY FLOW 240 GPD
PUMPS COME ON TWICE PER HOUR 5 GAL. 0.0 MIN. PUMP RUN TIME
PUMPS COME ON EIGHT TIMES PER HR. 1 GAL. 0.0 MIN. PUMP RUN TIME
ACTIVE STORAGE VOLUME V a T Q.2(1-Q (Q) WHERE V=VOLUME(GAL.)
V= 2.5 GAL. T ALLOWABLE CYCLE TIME BETWEEN STARTS(MIN.) USE l5 MIN
Qddf=DESIGN DAILY FLOW(GPD)
WETWELL DIA. 3 FT.
VOLUME PER VF 7.1 CU.FT.
52.9 GAL/VF
0.05 FT.PER ACTIVE STORAGE VOL.CALC.
USE 1.0 FT.FOR PUMP SUBMERGENCE
0.1 FT.TO LEAD PUMP ON(PUMPS RUN TWICE PER HOUR)
0.5 FT.FOR ALARM
3.51NV.IN DEPTH
212 GAL.VOLUME ABOVE PUMP ON 240 GALLONS PER HOUSE IS WHAT IS REQUIRED
5.63 REQUIRED WETWELL DEPTH USE 6 FT.DEPTH
WETWELL REQUIRED ANTI-FLOATATION BALLAST CALCULATION
WETWELL HEIGHT 6.00 ft.
WETWELL DIAMETER 3.00 ft.
GROUNDWATER DISPLACED BY WETWELL 42 COL
REQUIRED BALLAST 2645 lb.
REQUIRED CONCRETE VOLUME(cc.ft.) 0.7 cu.yd.

OYSTER LANDING PRESSURE SEWER MODEL SCHEMATIC
Day 1, 12:00 AM
19 21
13 15 17
11 32 T 34 r
9rl R
12 16
10 35
14 33 34
32 15 436
8 31
30 21 17
f 25 1 8
31 7
33
4 4 5 3 6 11
3 5 13
2 6 27 23 19 23
1 7 24
35 29 26 25 18
7 20
28 24 22 2:
29 0
26 18
28 16
30 14
12
10
EPANET 2 Page 1

OYSTER LANDING PRESSURE SEWER (MOST REMOTE PUMP ON, NODES)
Network Table-Nodes
Elevation Head Pressure
Node ID ft ft psi
June 2 54 56.02 0.87
Junc 3 53 57.80 2.08
June 4 52 59.58 3.29
Junc 5 50 61.37 4.92
June 6 49 63.15 6.13
June 7 48 64.93 7.34
June 8 47 66.71 8.54
Junc 23 47 66.71 8.54
June 24 48 64.93 7.34
June 25 49 63.15 6.13
Junc 26 50 61.37 4.92
June 27 51 59.58 3.72
Junc 28 53 57.80 2.08
June 29 54 56.02 0.87
June 30 54 56.02 0.87
June 31 53 57.80 2.08
June 32 51 59.58 3.72
June 33 50 61.37 4.92
June 34 49 63.15 6.13
June 35 48 64.93 7.34
June 36 47 69.26 9.65
Resvr 9 0 0.00 0.00
Resvr 10 0 0.00 0.00
Resvr 11 0 0.00 0.00
Resvr 12 0 0.00 0.00
Resvr 13 0 0.00 0.00
Resvr 14 0 0.00 0.00
Resvr 15 0 0.00 0.00
Resvr 16 0 0.00 0.00
EPA NET 2 Page 1

OYSTER LANDING PRESSURE SEWER (MOST REMOTE PUMP ON, NODES)
Elevation Head Pressure 1
Node ID ft ft psi 11
Resvr 17 0 0.00 0.00
Resvr 18 0 0.00 0.00
Resvr 19 0 0.00 0.00
Resvr 20 0 0.00 0.00
Resvr 21 0 0.00 0.00
Resvr 22 0 0.00 0.00
Tank 1 50 55.00 2.17
EPANET 2 Page 2

OYSTER LANDING PRESSURE SEWER (MOST REMOTE PUMP ON, LINKS)
Network Table-Links
Length Diameter Roughness Flow Velocity
Link ID ft in GPM fps
Pipe 1 70 2 130 31.22 3.19
Pipe 2 70 2 130 31.22 3.19
Pipe 3 70 2 130 31.22 3.19
Pipe 4 70 2 130 31.22 3.19
Pipe 5 70 2 130 31.22 3.19
Pipe 6 70 2 130 31.22 3.19
Pipe 7 40 2 130 31.22 3.19
Pipe 9 100 2 130 31.22 3.19
Pipe 11 100 2 130 0.00 0.00
Pipe 13 100 2 130 0.00 0.00
Pipe 15 100 2 130 0.00 0.00
Pipe 17 100 2 130 0.00 0.00
•
Pipe 19 100 2 130 0.00 0.00
Pipe 21 100 2 130 0.00 0.00
Pipe 23 100 2 130 0.00 0.00
Pipe 25 100 2 130 0.00 0.00
Pipe 27 100 2 130 0.00 0.00
Pipe 29 100 2 130 0.00 0.00
Pipe 31 100 2 130 0.00 0.00
Pipe 33 100 2 130 0.00 0.00
Pipe 35 100 2 130 0.00 0.00
Pump 8 #N/A #N/A #N/A 0.00 0.00
Pump 10 #N/A #N/A #N/A 0.00 0.00
Pump 12 #N/A #N/A #N/A 0.00 0.00
Pump 14 #N/A #N/A #N/A 0.00 0.00
Pump 16 #N/A #N/A #NIA 0.00 0.00
Pump 18 #N/A #N/A #N/A 0.00 0.00
Pump 20 #N/A. #N/A #N/A 0.00 0.00
Pump 22 #N/A #N/A #N/A 0.00 0.00
EPANET 2 Page 1
L

OYSTER LANDING PRESSURE SEWER (MOST REMOTE PUMP ON, LINKS)
Length Diameter Roughness Flow Velocity
Link ID ft in GPM fps
Pump 24 #N/A #N/A #N/A 0.00 0.00
Pump 26 #N/A #N/A #N/A 0.00 0.00
Pump 28 #N/A #N/A #N/A 0.00 0.00
Pump 30 #N/A #N/A #N/A 0.00 0.00
Pump 32 #N/A #N/A #N/A 0.00 0.00
Pump 34 #N/A #N/A #N/A 31.22 0.00
EPANET 2 Page 2

I
OYSTER LANDING PRESSURE SEWER (ALL PUMPS ON, NODES)
Network Table-Nodes
Elevation Head Pressure
Node ID ft ft psi
June 2 54 85.19 13.51
June 3 53 111.47 25.34
Junc 4 52 123.31 30.90
June 5 50 128.84 34.16
June 6 49 131.39 35.70
June 7 48 132.45 36.59
Junc 8 47 132.73 37.15
Junc 23 47 132.84 37.19
Junc 24 48 132.57 36.64
June 25 49 131.56 35.77
June 26 50 129.14 34.29
Junc 27 51 123.93 31.60
Junc 28 53 112.96 25.98
Junc 29 54 87.63 14.57
June 30 54 87.63 14.57
Junc 31 53 112.96 25.98
Junc 32 51 123.93 31.60
June 33 50 129.14 34.29
Junc 34 49 131.56 35.77
June 35 48 132.57 36.64
June 36 47 132.84 37.19
Resvr 9 0 0.00 0.00
Resvr 10 0 0.00 0.00
Resvr 11 0 0.00 0.00
Resvr 12 0 0.00 0.00
Resvr 13 0 0.00 0.00
Resvr 14 0 0.00 0.00
Resvr 15 0 0.00 0.00
Resvr 16 0 0.00 0.00
EPANET 2 Page 1

OYSTER LANDING PRESSURE SEWER (ALL PUMPS ON, NODES)
Elevation Head Pressure
Node ID ft ft psi
Resvr 17 0 0.00 0.00
Resvr 18 0 0.00 0.00
Resvr 19 0 0.00 0.00
Resvr 20 0 0.00 0.00
Resvr 21 0 0.00 0.00
Resvr 22 0 0.00 0.00
Tank 1 50 55.00 2.17
EPANET 2 Page 2

,
OYSTER LANDING PRESSURE SEWER (ALL PUMPS ON, LINKS)
Network Table-Links
Length Diameter Roughness Flow Velocity
Link ID ft in GPM fps
Pipe 1 70 2 130 11.47 1.17
Pipe 2 70 2 130 23.55 2.40
Pipe 3 70 2 130 37.87 3.87
Pipe 4 70 2 130 57.55 5.88
Pipe 5 70 2 130 86.77 8.86
Pipe 6 70 2 130 133.49 13.63
Pipe 7 40 2 130 194.60 19.87
Pipe 9 100 2 130 5.74 0.59
Pipe 11 100 2 130 5.74 0.59
Pipe 13 100 2 130 6.04 0.62
Pipe 15 100 2 130 6.04 0.62
Pipe 17 100 2 130 7.16 0.73
Pipe 19 100 2 130 7.16 0.73
Pipe 21 100 2 130 9.84 1.01
Pipe 23 100 2 130 9.84 1.01
Pipe 25 100 2 130 14.61 1.49
Pipe 27 100 2 130 14.61 1.49
Pipe 29 100 2 130 23.36 2.39
Pipe 31 100 2 130 23.36 2.39
Pipe 33 100 2 130 30.56 3.12
Pipe 35 100 2 130 30.56 3.12
Pump 8 #N/A #N/A #N/A 30.56 0.00
Pump 10 #N/A #N/A #N/A 23.36 0.00
Pump 12 #N/A #N/A #N/A 14.61 0.00
Pump 14 #N/A #N/A #N/A 9.84 0.00
Pump 16 #N/A #N/A #N/A 7.16 0.00
Pump 18 #N/A #N/A #N/A 5.74 0.00
Pump 20 #N/A #N/A #N/A 6.04 0.00
Pump 22 #N/A #N/A #NIA 7.16 0.00
EPANET 2 Page 1

OYSTER LANDING PRESSURE SEWER (ALL PUMPS ON, LINKS)
Length Diameter Roughness Flow Velocity
Link ID ft in GPM fps
Pump 24 #N/A #N/A #N/A 9.84 0.00
Pump 26 #N/A #N/A #N/A 14.61 0.00
Pump 28 #N/A #N/A #N/A 23.36 0.00
Pump 30 #N/A #N/A #N/A 30.56 0.00
Pump 32 #N/A #N/A #N/A 6.04 0.00
Pump 34 #N/A #N/A #N/A 5.74 0.00
EPANET 2 Page 2

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�« PM A.c 2014 PHASE IV 6025 TARIN ROAD 6216STONEBRIDGE ROAD 1 C-4.4
mad. µ., WILMINGTON,NC 28409 I
N41 SNEADS FERRY ONSLOW NORTH CAROLINA WILMINGTON,NC 28409 1111N4 No P-1022

Part VII Sewer Pump Stations
1. Material
a. Site Work - There shall be provided a high pressure sodium vapor luminary light of 600
watt (min) capacity to illuminate the pump station area. The light shall be mounted on a
Class V utility pole at a height of 30 feet and controlled by means of a photo cell and
manual switch to bypass photo cell.
b. Piping and Valves - Suction and discharge piping shall be Class 50 ductile iron flanged pipe
as manufactured under AWWA Specification C 141. A check valve and a gate valve shall
be provided in a valve vault outside the station for the discharge pipe of each pump. A
tee shall be installed in the valve vault to join each discharge pipe into the common
force main line. An air release valve shall be located in the valve vault downstream of
the gate and check valves. In addition a 3" stub with valve and quick connect coupling
shall be installed after the tee to provide an emergency bypass in case of both pumps
failing.
c. Electrical - The electrical power entrance shall be through a meter base, followed by a
NEMA 4X heavy duty, single throw, fusible safety switch with a solid neutral; followed
by a NEMA 4X heavy duty, double throw, three pole safety switch which feeds the
control panel from one side and heavy duty, circuit breaking 4 wire, 4 pole receptacle
assembly as manufactured by Crouse-Hinds or other approved equal from the other
side.
d. Control Equipment Enclosure - Liquid Level Controls —The cord connection for the
control shall be numbered I6-2, rated for 13 amps, and shall be type SJTO. To ensure
optimum longevity contacts shall be rated for 20 amps at 1 15 V AC and shall be sealed
in a heavy duty glass enclosure.
e. Pump Station —Submersible Pump Type
i. Sewage Pumps and Motors
a. Pumps shall be Myers or other approved manufacturer submersible, large
grinder or non-clog sewage pumps.
b. The common pump shaft shall be of 416 stainless steel.
c. Power cables to pumps shall be AWG (min) hypalon jacketed type SPC cable of
thirty (30) feet in length as a minimum.
ii. Discharge Piping and Valves
66

a. Discharge piping shall be flanged ductile iron pipe pipe (Class 50
min) sized to produce a minimum head loss while maintaining a minimum velocity of
2.5 feet per second, as here in before specified.
b. All hardware used shall be 3 I 6 stainless steel.
iii. Lift Out Rail System - Guide Rails shall be stainless steel pipe.
iv. Telemetry — Mission Control Model M-110 Series wireless monitoring and alarm
system.
2. Design
a. General Requirements
i. Sewage pumping stations shall meet the requirements as stated below and as
described in each section for the type of station selected. Pump stations may be
submersible grinder pumps only.
ii. All stations shall have a minimum of 2 pumps of equal capacity. The pumps shall be
solids handling, grinder or non-clog pumps capable of handling flows in excess of the
expected peak flow. Where three or more pumps are required, they should be of
such capacity that with any one unit out of service, the remaining units will have
capacity to handle peak sewage flows. Pumps and the sewage force main shall be
sized to provide a minimum velocity in the force main of 2.5 fps.
iii. Sewage pumping stations, all related structures and controls, shall be protected
from physical damage by the 100 year flood. Stations shall be designed to remain
fully operational and accessible during the 25 year flood. The 100 year flood
elevation shall be shown on all site plans. All sewage pump stations which are
adjacent to stream classified as WS-I, WS-II, or B waters shall be equipped with an
alternate power source. All lift station with a tributary flow of 15,000 gallons per day
must be equipped with an emergency self-priming by-pass pump with diesel engine
and controlled by independent floats. All pump stations with less than 15,000 gallons
per day tributary flow must be plumbed with ports for a mobile by-pass pump.
Plumbing connections shall be specified by Pluris.
b. Site Work
i. The site shall be graded generally to drain away from the pump station and to
remove stormwater runoff from site in a non-erosive manner.
ii. The site shall be stabilized by crushed stone, low maintenance vegetative ground
67

cover or other suitable materials. A shrubbery screen shall be provided on three
sides of all pump stations, outside the security fence.
iii. The site area shall be secured by a six (6) foot high chain link fence. Fence products
shall be only new materials using hot dipped galvanized iron or steel components
and aluminum coated fabric. Line posts, top and bottom rails, gate and fabric shall be
as specified on the Standard Detail Drawings. Gates shall permit 180 degree opening
and shall be located so as to provide vehicle accessibility for lifting the pumping units.
There shall be a minimum gate opening of twelve (I4) feet to facilitate truck access.
iv. The site shall feature adequate turn around areas for a WB-20 service vehicle and
provide a 12 foot (minimum) wide access road to the site with grades not to exceed
10 feet in one hundred feet (10%).
v. There shall be provided a high pressure sodium vapor luminary light of 600 watt
(min) capacity to illuminate the pump station area. The light shall be mounted on a
Class V utility pole at a height of 30 feet and controlled by means of a photo cell and
manual switch.
c. Piping Valves - Check valves shall be iron bodied, fully bronze mounted with bronze
clapper disc and replaceable bronze seat ring, and shall have a spring loaded lever arm
capable of being mounted on either side of the valve and rated for 175 psi working
pressure.
d. Wetwell
i. The wet well shall be precast concrete manhole sections conforming to ASTM C-
478, latest revision, with a six (6) foot minimum diameter. The base of the wet well
shall be pre-cast, steel reinforced concrete and have a minimum extended base of 6
inches greater than the outside diameter of the wet well. The concrete shall have a
minimum 28 day compressive strength of 3,000 psi.
ii. The manhole sections shall have joints of a durable mastic sealing material and the
joints shall be further waterproofed on the outside of the wet well by the application
of asphalt, overlapped by a 12 inch wide band of inorganic asbestos felt, and a finish
mopping of asphalt. The interior side of the joints shall be plastered smooth with 3
coats of portland cement grout. The interior and the exterior of the wet well shall
then receive two successive coats of Koppers `Super Service Black, or a suitable coal
tar epoxy, With a total dry film thickness of ten (10) mils, All nicks and scratches
shall be touched up in the field before backfilling occurs. The access hatch to the wet
well shall be a square hatch of 1/4" aluminum, 6063 alloy, diamond pattern plate with
steel hinges on an aluminum frame cast in place in the cover slab.
ii. The wet well shall have a vent made from ductile iron, flanged joint, pipe fittings, as
shown on the plans. An insect screen shall be included at the exposed end of the
68

vent pipe. The insect screen shall be bronze insect screening or aluminum insect
screening.
d. Electrical
i. Electrical service to all pump stations shall be three phase, 240 or 480 V AC with a
wye connection. The electrical power entrance shall be through a meter base,
followed by a NEMA 4X heavy duty, single throw, fusible safety switch which feeds
the control panel from one side and heavy duty, circuit breaking 4 wire, 4 pole
receptacle assembly as manufactured by the Crouse-Hinds or other approved equal
from the other side. All of these electrical components shall be suitably sized to be
capable of service with all sewage pumps running.
ii. All electrical components, including panel shall be sealed off with Ductiseal type
sealant in accordance with the N. C. Electrical Code requirements for electrical
service to gas pumps.
e. Pump Motor Controls - Pump motor controls equipment shall be located within a
NEMA 4X stainless steel above ground housing.
f. Control Equipment Enclosure
i. NEMA4X_Enclosure - Enclosure shall be a NEMA type 4X and be of suitable size to
house all components. A locking hasp shall be provided in addition to screw clamp
type latches. Enclosure shall be fabricated from 14 gauge stainless steel. The top of
the enclosure shall serve as a drip shield and the seam free sides shall prevent rain
and sleet from entering. Inner panel shall be made of 12 gauge steel and shall be
painted white. The enclosure and interior panel shall be painted with heat fused
modified polyester powder, electrostatically applied over a phosphatized base.
Enclosure shall be ANSI/ASI 6I grey.
ii. Hinged Inner Door—An inner door shall be furnished. Overload reset push buttons,
circuit breakers, switches and pilot lights shall be the only components accessible
with door closed. Door shall be hinged and may be opened when service is required.
iii. Line Terminal Block — A terminal block shall be furnished with properly sized line
lugs to accept the main power source entering the control panel. Load lugs shall be
adequate to accept all required load side wiring requirements. All live parts shall be
fully shielded.
iv. Motor Circuit Breakers (240 or 460 V AC) - A properly sized, molded case, thermal
magnetic circuit breaker shall be provided for each pump motor. Line and load sides
shall be equipped with lugs properly sized for the horsepower and current rating of
the motor(s). They shall be attached to mounting brackets which are specifically
69

manufactured for use with the particular circuit breaker. The interrupting rating shall
be I0,000 RMS symmetrical amps.
v. Transformer Primary Circuit Breaker (When Transformer Is Required) —A properly
sized, two pole, molded case circuit breaker shall be furnished ahead of the control
power I20 V AC power transformer for short circuit protection and disconnecting
power to the transformer. The circuit breaker shall conform to the specifications
for the motor circuit breaker(s).
vi. Control Power Transformer (When Neutral Is Not Available at Jobsite — Std. on
460 V AC) - An industrial quality control transformer shall be furnished to provide
control voltage. The transformer shall be sized with an adequate KVA rating to
provide 120 V AC power for all items required in the control and alarm circuits. -
Transformer shall be protected in its secondary by properly sized fuses and/or
circuit breaker(s).
vii. Magnetic Contactors and Overload Relays- A magnetic contactor shall be furnished
for each motor. A separate, panel mounted, 3 leg (three phase) or I leg (single
phase) overload relay shall be supplied for each motor. Each leg of the overload
relay shall be equipped with a properly sized overload heater. Contactor and
overload relay shall be properly sized for the required horsepower, voltage and
phase.
viii.Elapsed Time Meters—Six digit, non-resetable elapsed time meters shall be mounted
in the control panel enclosure t o record the running time of each pump.
ix. Phase andVoltage Monitor- A phase failure, reversal and under voltage monitor shall
be supplied to prevent the motors from running under low voltage, phase loss, or
phase reversal conditions. The monitor will lock out the control circuit until the
problem is corrected and automatically reset.
x. Lightning Arrestor- Suitable lightning arrestors shall be provided to protect motors
and control equipment from lightning induced line surges.
xi. Thru-Door Overload Reset Push Buttons - Overload reset push buttons shall be
provided for each overload relay. Push buttons shall be mounted so that with inner
door closed, overload relays may be reset without entering high voltage
compartment.
xii. Switches - Heavy duty industrial grade oiltight switches shall be provided for each
pump for "Hands-Off-Automatic' operation selection. All switch components shall
be made of corrosion resistant metals and polyesters. Contact blocks shall be made
of see-through polycarbonate for simplified inspection of contacts, Cams and strokes
shall be Teflon impregnated for abrasion free service without lubrication. The
switches required shall be as follows:
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Switch Function Voltage
(Name Plate)
Manual-off-Automatic 120 V AC
xiii.Pilot Lights — Full voltage heavy duty industrial grade oiltight pilot lights shall be
provided. All pilot light components shall be made of corrosion resistant metals and
polyesters. An insulated socket shall be furnished to eliminate the possibility of
shock during bulb change. Lens shall be made of lexan. The pilot lights required shall
be as follows:
Pilot Light Voltage Lens Color
Function
(Name Plate)
PUMP I I20 V AC GREEN
PUMP 2 I20 V AC GREEN
xiv.Seal Failure Circuit Test Push Button (illuminated) - Heavy duty industrial grade
oiltight push buttons shall be provided for each submersible pump motor. All push
button components shall be made of corrosion resistant metals and polyesters.
Contact blocks shall be made of see-through polycarbonate for simplified inspection
of contacts. An insulated socket shall be furnished to eliminate the possibility of
shock during bulb change. Lens shall be made of lexan. The push buttons required
shall be as follows:
Pilot Light Function Voltage Lens Color
(Name Plate)
PI SEAL FAIL I20 VAC AMBER
P2 SEAL FAIL I20 V AC AMBER
xv. Pump Alternator Circuit (For Duplex Pump Operation) - The electromechanical
alternator relay shall be of industrial design specifically for use in pump applications.
It shall have single pole double throw heavy duty 10 amp silver cadmium oxide
contacts enclosed in a transparent cover. The contacts shall transfer when the unit is
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deenergized. The circuit shall never be closed or opened while current is being
conducted. The alternator circuit shall alternate the lead pump position between the
pumps and shall allow the lag pump to start in response to a rising water level in the
wet well. Needs to be switchable I.E. PI or P2 lead. (P I alt. P2).
xvi.Power Failure - Once power is restored after a failure and the pump has pumped
the water from alarm level down to pump off, the alarm should automatically reset
itself.
xvii. Control Relay(s) - Plug-in control relays with 120 V AC coils shall be provided as
required. Contact rating shall be 5 amps (minimum). Sockets shall be of the same
manufacture as the relays and hold-down clips shall be furnished to prevent relay
from sliding out of the socket.
xviii. High Wet Well Level Alarm - The control panel shall be provided with a suitable
alarm circuit, activated by a separate level control. This alarm shall signal a high
water condition in the sump. Terminals shall be furnished in the control panel for
connection of an externally mounted alarm device. A red flashing light shall be
provided as a visual alarm and a horn provided as an audible alarm of the high water
condition in the wet well. The pump station shall also be equipped with buttons to
both test and silence the horn and light.
xix.Liquid Level Controls - Mercury level control switches shall be provided for pumps
on, lead pump on, lag pump on; and high level alarm functions. The mercury switch
shall be encapsulated in polyurethane foam for corrosion and shock resistance. Level
switches shall be weighted to hold desired position in the sump. The cord
connection for the control shall be numbered I6-2, rated for I amps, and shall be
type SJTO. To ensure optimum longevity contacts shall be rated for 20 amps at 115
V AC and shall be sealed in a heavy duty glass enclosure. No junction boxes or cable
splices of any kind will be allowed in the wet well. Float leads shall not be in the
same conduit as the motor leads.
xx. High Temperature Shutdown Circuit(s) - The high pump motor temperature circuit
shall provide terminals for connection of the leads from the temperature sensor
provided in the pump motor windings. Upon a high temperature condition in the
pump windings, the control power to the pump motor contactor shall be
disconnected, thus stopping the pump motor and an-overheating light shall come on.
The pump shall automatically restart when the pump motor temperature returns to
an acceptable level.
xxi.Ground Lug(s) - Equipment ground lug(s) shall be provided for grounding the
enclosure. The ground lug(s) shall be suitable for the service provided to the
enclosure and shall be sized per table 250-95 of the N.E.C. In all cases the enclosure
must be adequately grounded per article 250 of the N.E.C.
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xxii. Terminals - Terminals shall be provided for connecting mercury float switch
leads, temperature sensor and seal fail sensor leads. Terminal blocks shall be rated
for 600 volt use and accept a wire range of #22-8. All live parts shall be fully
shielded. Block shall be constructed of nylon and have insulating walls on all sides of
the lug. Blocks must be U. L. recognized.
xxiii. Construction Standards - Subpanel shall be drilled and tapped to accept machine
thread bolts (self tapping screws are not acceptable). All control wiring shall be 16
AWG machine tool wire, Carol type 76512 or equal. All control wire shall be color
coded or numbered in accordance with JIC standards. Power (motor) wiring shall be
in accordance with the 1984 National Electrical Code. Major groups of wires shall be
contained in a plastic wiring trough such as Panduit Type E or other approved equal.
xxiv. Guarantee- The manufacturer of the control panel shall furnish a warranty for
one year from the date of start-up stipulating that all equipment shall be free from
defects in design, materials and workmanship. The control panel manufacturer shall
furnish replacement parts for any component proven defective, whether of his or
other manufacturer during the guarantee period, excepting only those items which
are normally consumed in service, such as light bulbs.
g. Pump Station —Submersible Pump Type
i. General - The submersible pump station structure shall consist of the wet well,
duplex pumps and rails, pump controls and related appurtenances, discharge piping,
valves, and valve vault, cover slabs and access hatches.
The wet well shall have as a minimum a diameter of five (6) feet, and shall be large
enough to easily accommodate the location and removal of each pump so that no
pump will have more than 5 stalls per hour when the other pump is out.
ii. Sewage Pumps and Motors - Pumps shall be Myers or other approved
manufacturer, submersible, large grinder or non-clog sewage pumps, or a pump
approved by Pluris's engineer. Submersible pumps shall be provided each capable of
handling raw, unscreened sewage at peak design flow. Major pump components shall
be of gray cast iron devoid of burr, pits or other irregularities: The pump motors
shall be sealed submersible type, and shall be three phase, 60 Hertz, 240 or 460 volt
motors with a wye connection. The motors shall meet the U. S. requirements of
Class I, Division I, Group D for hazardous locations, and shall be sized to non-
overloading throughout the entire operating range of the pump.
Stator winding shall be of the open type with insulation good for 1,800 Centigrade
maximum temperature. Winding housing shall be filled with a clean high dielectric oil
that lubricates bearings and seals and transfer heat from windings and rotor to outer
shell.
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Motor shall have two heavy duty ball bearings to support pump shaft and take radial
and thrust loads and a sleeve guide bushing directly above the lower seal to take
radial load and act as flame path for seal chamber. Ball bearings shall be designed for
30,000 hours B-10 life. Stator shall be heat shrunk into motor housing.
A heating sensor thermostat shall be attached to and embedded in the winding and
be connected in series with the motor starter contactor coil to stop motor if
temperature of winding is more than 220° F. Thermostat shall reset automatically
when motor cools to safe operating temperature. The common pump shaft shall be
of 416 stainless steel.
The pump motor shall be protected by two mechanical seals mounted in tandem
with a seal chamber between the seals. Seal chamber shall be oil filled to lubricate
seal face and to transmit heat from shaft to outer shell. Seal face shall be carbon and
ceramic and lapped to a flatness of one light band. Lower seal faces shall be tungsten
carbide.
A double electrode shall be mounted in the seal chamber to detect any water
entering the chamber through the lower seal. Water in the chamber shall cause a
red light to turn on at the control panel. This signal shall not stop the motor but
shall act as a warning only.
Power cables to pumps shall be AWS (mm) hypalon jacketed type SPC cable of
thirty (30) feet in length as a minimum.
iii. Discharge Piping and Valves - Discharge piping shall be flanged ductile iron pipe
(Class 50 mm) sized to produce a minimum head loss while maintaining a minimum
velocity of 2.5 feet per second, as herein before specified. All exposed piping shall
have adequately sized and located thrust rods.
The discharge connection elbow shall be a straight through fitting with no flap valve
and shall be permanently installed in the wet well along with the discharge piping.
The pumps shall be automatically connected to the discharge connection elbow
when lowered into place. A sliding guide bracket shall be guided no less than two
guide bars. The entire weight of the pump shall bear upon the guides and base
support with no part of the pump bearing directly on the floor of the sump. A
stainless steel chain shall be provided for lifting each pump from the wet well and
shall be in a single length and extend a minimum of 15 feet past the hatch. All
hardware used shall be 316 stainless steel.
Gate valves and check valves on the discharge side of each pump shall be located in a
valve vault separate from and adjacent to the wet well. A Dresser coupling shall be
installed one each discharge main between the wet well and the valve vault. The
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valve vault shall consist of a precast rectangular structure at least 6 feet square, all
complete with a drain that goes to the wet well and that has a back water valve on
the drain line, access ladder or rungs, and access cover cast in the top slab.
The access cover for the valve vault shall be a square hatch of 1/4 inch aluminum
diamond pattern plate with steel hinges on an aluminum frame cast in place in the
cover slab.
iv. Lift Out Rail System - The lift out systems shall consist of a straight elbow that bolts
to bottom of basin, a combination disconnect assembly with a seal flange that
mounts to pump, rail support guides that fasten to wall of basin and guide and
support brackets that mount to pump.
Guide rails shall be Stainless steel pipe.
The discharge quick disconnect shall be tapered and have a holding groove machined
into the face to hold a-sealing--O-ring. The tapered seat shall allow the pump to be
nearly sealed to the discharge elbow before the sealing faces make contact. A guide
plate and adjustable guide bar shall be fastened to top of the pump to insure good
alignment and for support of the pump.
The rail support and mounting bushing shall be securely mounted to the basin wall
and shall not be attached to the basin cover or cover frame.
The guide rail support shall be adjustable so that a perfect vertical alignment of the
rails can be obtained.
h. Warranties and Documentation
i. Warranties - The pump manufacturer shall warrant to the Developer and
subsequently Pluris, that the pumps, motors, and controls supplied to be free of
defects in workmanship and material for a period of one (I) year. The warranty shall
be in printed form and made applicable to Pluris (as Warrantee) at the time of
acceptance for maintenance by Pluris. Digital and hardcopy drawings of the as-builts
shall be provided to Pluris. The drawings shall contain all adjacent utility information
including, but not limited to, forcemains, valves, and gravity sewer manholes.
ii. Documentation — Documentation to be supplied to Pluris shall be three copies of
the complete Operation and Maintenance manuals which include the following:
a. Cover Sheet Listing: Pump manufacturer; source of repair parts, complete with
address and phone number; operating conditions — rated capacity and TDH of
each pump; model number, serial number, impeller diameter of each pump; all
data plate information from each pump motor; data on other equipment
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included as components in the pump station.
b. Pump Performance Curve with operating conditions indicated on it.
c. Detailed dimensional drawings of the pump and pump base elbow.
d. Detailed dimensional drawings of the pump motor.
e. A control panel wiring diagram.
f. Pump and motor installation and service manual.
g. Detailed information related to other components of the pump station.
i. Pump Design
i. General Requirements
a. Only pumps designed and manufactured for use in conveying raw, unscreened
wastewater shall be acceptable
b. Pump selection shall consider the duty requirements as well as the physical and
chemical characteristics of the wastewater being conveyed. Materials used in
pump construction shall also be suitable for the physical and chemical
characteristics of the wastewater being conveyed.
c. Pump stations conveying residential, commercial, institutional, or industrial
domestic wastewater shall be provided with pumps that are suitable for
continuous duty in conveying raw, unscreened wastewater.
i. Pumps shall be capable of handling a three-inch solid and any trash or stringy
material that can pass through a four-inch hose unless a mechanical means of
solids reduction is installed at the pump station.
(I) Pumps shall be made non-clog either by passing solids, trash, stringy material
through a non-clog- or vortex-type impeller or by grinding, chopping, or
cutting them prior to passing them through the impeller. Impellers shall have
blades that are generally forward rounded or otherwise configured to avoid
catching solids, trash, and stringy material.
(2) Mechanical bar screens, communicators, diminutors, or other similar devices
may be required at regional pump stations.
ii. Pump suction and discharge openings shall be no less than four inches in
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diameter unless the pump is capable of grinding, chopping, or cutting solids
or a mechanical means of reducing the size of a three-inch solid and any trash
or stringy material that can pass through a four-inch hose is installed at the
pump station.
iii. Pumps shall be designed for continuous duty pumping of raw, unscreened
wastewater. Pumps shall be adequately protected from damage due to failure
conditions specific to the selected pump type and pump station configuration.
ii. Number and Capacity
a. Pump stations shall be provided with the number and capacity of pumps that is
stipulated in I5A NCAC 02T .0305(h)(I).
i. Multiple pumps shall be used such that the pump station is capable of conveying
the peak hourly wastewater flow to its desired outfall location with the largest
single pump out of service.
(I) In duplex pump stations, the pumps shall be of the same capacity.
(2) If pumps in series are required to meet capacity or total dynamic head
requirement, each set of pumps in series shall be viewed as a single pumping unit.
(3) Priming pumps as well as any other auxiliary system that is required for pump
functionality shall also be provided in multiple numbers.
ii. Determination of pump capacity shall be based on wastewater flows expected to
become tributary to the pump station for the entire project/development at
build out. For regional pump stations, pump capacity shall be based on
wastewater flows expected to become tributary from the entire service area
over the life of the pump station.
(I) Interim sizing of pumps and associated pump stations shall be allowable;
however, it shall only be used to meet requirements as set forth in I 5A NCAC
02T .0305 or the minimum design criteria contained in this document and not
for economic purposes.
(2) A conspicuous statement that specifies the initial service capacity shall be
provided on the drawings for projects that are approved for an interim
condition. Additional wastewater flows (i.e., those in excess of that approved for
the interim condition) shall not be made tributary to the pump station until a
request for permit modification is submitted to and approved by NCDENR, the
pumps and associated pump station are upgraded, and the required certificate of
completion and other supporting documentation are received by NCDENR.
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iii. The minimum allowable design daily wastewater flow to the pump station shall
be determined in accordance with I 5A NCAC 02T .0305.
(I) Where a pump station is designed to serve a developed service area, historical
potable water use or wastewater flow generation data may be used to determine
design daily wastewater flows.
(2) Where a pump station is designed to serve a broad service area for which
specific development is not known, design daily wastewater flows may be
established based on historical data for the broad service area or established
long-range wastewater planning criteria.
iv. The selected peak hourly wastewater flow to the pump station shall be
appropriate for the service area as well as the associated wastewater generation
patterns and population being served by the pump station. The minimum peak
hourly wastewater flow to the pump station shall be calculated using the design
daily wastewater flow in conjunction with a peaking factor determined from the
following equation:
PF = QphfI Qddf= [(I 8 + sqrt(P)/(4 + sqrt(P)]
Where:
PF = Peaking Factor
Qphf= Peak hourly flow (gpd)
Qddf= Design daily flow(gpd)
P = service population(thousands)
(I) The above equation yields a peaking factor that is intended to cover normal
infiltration and inflow for well-maintained sewer systems and/or those built
with modern materials and construction methods. Consideration shall be
given to applying higher peaking factors for special conditions such as pump
stations serving older collection systems, those serving collection systems
located in areas with high actual groundwater tables, those serving areas that
have combined sewer systems, etc. Infiltration and inflow allowances shall be
incorporated using actual flow data whenever possible.
(2) Peaking factors for pump stations conveying industrial or other process
wastewater shall be determined based on actual operating conditions of the
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facility; however, in no case shall the peaking factor be less than the minimum
set forth in NC DENR's Minimum Design Criteria for the Fast-Track
Permitting of Pump Stations and Force Mains Section 2.02A.4.c.
(3) In no case shall a peaking factor less than 2.5 be used to calculate peak hourly
wastewater flows for any pump station.
b. Pump capacity shall also be based upon the need to maintain a minimum velocity
of two feet per second in the force main in accordance with State requirements.
iii. Selection Methodology
a. Pump selection shall be based on a hydraulic analysis of the system through which
the wastewater is to be conveyed.
i. The design operating point(s) of the pump(s) shall be determined using a pump
curve-system curve analysis. Pumps shall be selected such that the pumps shall be
capable of pumping the required capacity, as described in NC DENR's Minimum
Design Criteria for the Fast-Track Permitting of Pump Stations and Force Mains
Section 2.02, for all total dynamic head requirements developed by the system
for the lifetime of the pump station.
ii. A system curve, plotting total dynamic head versus capacity, shall be developed
for all operating conditions that may be imposed on the system. Total dynamic
head requirements for the system shall be calculated as the total of the following
individual components:
I. Static head requirements of the system, including that associated with
` both the suction and discharge sides of the pumps, shall be evaluated. In addition
to calculating static head with the discharge evaluation of the force main, any
intermediate high points in the force main that would have an effect on the total
dynamic head requirements of the pump shall be analyzed.
2. Friction head requirements of the system, including that associated with
both the suction and discharge sides of the pumps, shall be evaluated. The
friction head shall be calculated using the Hazen-Williams formula:
hf = L[ 4.73Q1 as/ C1.85D4.87]
Where:
hf= Friction head in feet
L = Length of the pipe segment in feet
Q = Flow rate in gpm
C = Hazen Williams coefficient
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D = Inside pipe diameter in inches
All operating conditions shall be evaluated including, but shall not be limited to,
multiple pump operation within the subject force main, simultaneous pump
station operation for common force main situations, as well as the possibility for
gravity flow conditions in force main segments with extreme negative slopes that
may not flow full.
3. Head derived from any minor losses of the system, including that
associated with the both the suction side and discharge side of the pump, shall be
evaluated. Such minor losses shall include head derived from valves and other
fittings such as tees, bends, angles, etc.
iii. If applicable, the pressure head at the junction of the existing force main shall
also be evaluated for its effect on the total dynamic head requirements of the
system. The evaluation shall take into account the effects of simultaneous pump
station operation as well as multiple pump operation in other pump stations.
iv. System curves shall be generated and evaluated not only for present day
conditions, but also for those conditions that may exist over the expected
lifetime of the pump station.
v. The Hazen-Williams friction coefficient, C, appropriate for the force main pipe
material and age of the force main shall be used. The following maximum values
shall be allowable for C:
Pipe Type Initial Service C End-of-Service C
DI I25 100
PVC 140 120
H D PE 140 120
vi. Friction head and minor losses associated with the system shall be evaluated at
both the initial service condition and the end-of-service condition.
vii. The design operating point(s) shall be defined as the intersection of the pump
curve and the calculated system curve(s).
viii.Pumps shall be selected such that all design operating points are on the pump
curve as supplied by the pump manufacturer. In addition, pumps shall be selected
such that the net positive suction head available (NPSHA) shall be greater than
the net positive suction head required (NPSHR) at each of the design operating
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points.
ix. Pumps shall be selected such that the pumps will not cavitate at any of the design
operating points. Pumps that operate within the unstable portion of the pump
curve under any of the expected design conditions shall not be allowed.
Freewheeling (i.e., operating at pump run-out) or deadheading (i.e., operating at
pump shut-off) of pumps shall not be allowed.
x. To the greatest extent possible, pumps shall be selected such that their
operating efficiency is maximized during all hydraulic conditions that may exist
over the expected lifetime of the pump station.
b. Consideration shall be given to minimizing motor speeds during the pump selection
process.
c. The horsepower rating of each pump motor shall be at least 1.15 times that
required by the pump when operating at all design operating conditions.
iv. Cycle and Pump Run Times
a. Constant speed pumps shall be cycled such that the number of starts are minimized
and resting times are maximized to avoid overheating and overstressing of the pump
motor.
i. Automatic pump alternation shall be provided.
ii. Pumps shall be designed to operate between two and eight times per hour at
design daily flow in accordance with I5A NCAC 02T .0350(h)(I) whenever
practicable (see NC DENR's Minimum Design Criteria for the Fast-Track
Permitting of Pump Stations and Force Mains Section 2.04A.2.b.).
I. The following equation shall be used to determine the active storage
volume in the pump station (i.e., the volume between the pump-on and all
pump-off elevations) required to elicit the required pump cycle time:
V = T Qddf [1-(Qddf/Q)]
V = active volume within the pump station (gallons)
T = allowable cycle time between starts (minutes)
Qddf= design daily flow to pump station (gallons per minute)
Q = pumping rate of a single pump (gallons per minute)
2. If the wastewater generation patterns are such that less than two
pumping cycles per hour will occur at design daily flow or if the pump station
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is intended to provide equalization of hydraulic surges, measures to control
odor and corrosion shall be employed when resultant detention times cause
septic conditions. These measures shall take into consideration protection of
the pump station, the force main, the outfall sewer, any related appurtenances,
as well as the surrounding area.
b. Consideration shall be given to using variable speed pumps for main pump
stations or those pump stations that discharge directly into the wastewater
treatment facility.
c. Pump run times shall be such that excessive wear of the pumps does not
occur.
d. At design daily flow, adequate time shall be provided to allow a constant speed
pump to "ramp up" to full speed before the pumping cycle ends.
e. Pump run times at design daily flow shall not be less than or greater than those
recommended by the pump manufacturer.
j. Pump Station Design
i. General Requirements
a. Pump stations shall be designed to achieve total containment of the influent
wastewater prior to being conveyed through the force main
b. Pump stations shall be designed such that infiltration and inflow is minimized.
ii. Site Selection
a. Location and Access
i. Pump stations shall be designed to achieve total containment of the influent
wastewater prior to being conveyed through the force main.
ii. Pump station sites shall be accessible by an all-weather roadway in
accordance with I 5A NCAC 02T .0350(h)(4)
I. The roadway shall be provided from a hard surface road. The minimum
acceptable surface shall be a 6" compact gravel base able to support large
vehicular traffic loads.
2. Wherever practicable, no portion of the roadway shall be located below
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the 100-year flood elevation as identified on the most recent FEMA Flood
Insurance Rate map when available or as established through appropriate
modeling techniques.
3. The roadway shall be designed to accommodate the largest vehicle
expected to service the pump station. In no case shall the roadway be less
than 12 feet in width. Roadway widths may me reduced to mitigate wetland
impacts.
4. At a minimum, the roadway shall be constructed from a six-inch layer of
compacted aggregate base course (ABC) stone. In no case shall uncompacted
gravel or stone material be allowed for roadway construction.
b. Security
i. Access to the pump station structures as well as all associated equipment and
appurtenances shall be restricted in accordance with I5A NCAC
02T.0350(h)(4)
1. All ports of entry into pump station shall be locked.
2. Fencing provided around pump station structures shall be of sufficient
height and material to deter entry. Locked gates, a minimum of 14-feet wide,
shall be provided in the fence to allow vehicular access by operation and
maintenance staff. Consideration shall be given to complying with the
requirements in Section 3.02B.I.c. as well.
3. There shall be no overhead obstruction above the pump station to allow
the use of a boom truck at the pump station for lifting pumps. Additionally,
stainless steel chain shall be used for lifting out the pumps and the cable shall
be in a single length with the cable being able to extend 15 feet above the
wetwell hatch.
ii. The pump station shall be provided with adequate outdoor and indoor
lighting to facilitate normal and emergency operation and maintenance
activities during daylight and non-daylight hours.
iii. Safety placards for all pump station structures and equipment, as required by
OSHA, shall be provided and be readily visible.
iii. Structural Design
a. Materials of Construction
i. Pump station structures shall be designed and built in complete compliance
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with all applicable state, local, and federal codes as well as any applicable
OSHA standards.
ii. Material selection for pump station structures shall be based on installation
and operating factors including, but not limited to, the following:
I. Physical, chemical, and biological wastewater characteristics.
2. Corrosive gas production.
3. Soil characteristics.
4. Groundwater presence.
iii. Pump station structures shall be completely separated unless made
completely watertight and gas-tight.
iv. Pump station structures shall be adequately protected to minimize damage
from vehicular traffic.
b. Buoyancy Protection
i. Below-ground pump station structures shall be protected from buoyant
forces of groundwater.
ii. Buoyancy protection shall be demonstrated through the use of flotation
calculations.
I. Flotation calculations shall be performed on below-ground pump station
structures using the assumption that the elevation of the groundwater table
is equivalent to the ground elevation.
2. Flotation calculations shall not add the weight of the pumps, internal
piping and appurtenances, or wastewater present in the pump station,
including the wastewater below the all pumps-off activation level, into the
downward forces used to counteract buoyancy.
3. The use of the saturated weight of any soil above the extended footing of
the pump station structure shall be allowed in the flotation calculations.
iii. Flotation calculations shall show that the design of the below-ground pump
station structures will be protected from buoyancy with a factor of safety
that is equal to or greater than one.
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c. Flood Resistance
i. Pump station structures as well as all associated equipment and
appurtenances shall be protected from the I 00-year flood, in accordance
with 15A NCAC 02T .0350(e).
ii. Such protection measures shall ensure that the pump station shall remain
fully functional, operational, and free from physical damage during a 100-year
flood.
iii. The pump station shall be protected from inundation of floodwaters by
elevating structures at least two-feet above the I00-year flood elevation. An
alternate design shall include providing all pump station structures with
watertight ports of entry as well as electrical, instrumentation/control, and
ventilation systems that are elevated at least two-feet above the I00-year
flood elevations.
iv. The I00-year flood elevation shall be that as identified on the most recent
FEMA Flood Insurance Rate map when available or as established through
appropriate modeling techniques.
d. Solids Collection
i. Wet wells shall be designed to minimize pump or pump suction piping
operational problems resulting from the accumulation of solids and grit
material within the wet well.
I. Acceptable designs include the use of fillets and sloped wet well floors
alone or in conjunction with a hopper bottom.
2. The design of fillets and slopes shall be such that solids are effectively
moved toward the pump or pump suction piping.
ii. No projections within the wet well which would allow deposition of solids
under normal operating conditions shall be allowed.
e. Depth
i. Pump Submergence Depth
I. Sufficient submergence of the pump or pump suction piping shall be
provided to prevent the occurrence of vortexing within the wet well.
2. In no case shall the all pumps-off activation level be less than the minimum
level required for successful pump operation, as recommended by the pump
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manufacturer.
ii. The wet well shall be provided with a depth as required to maintain the active
storage volume as required in Section 2.04A.2.a of the NCDENR Minimum
Design Criteria.
iii. The wet well shall be provided with a depth as required to maintain the
emergency storage volume as required in Section 5.04B.3 and Section 5.04B.4. of
the NCDENR Minimum Design Criteria.
iv. Piping and Valves
a. Suction and Discharge Piping Configurations
i. Each pump shall be provided with separate suction and discharge piping
systems
I. Pump suction and discharge piping shall be no less than four
inches in diameter unless the pump is capable of grinding, chopping, or
cutting solids or a mechanical means of reducing the size of a three-inch
solid and any trash or stringy material that can pass through a four-inch
hose is installed in the pump station. Acceptable mechanical means of
solids reduction shall be as defined in Section 2.01 C.I.b of the NCDENR
Minimum Design Criteria.
2. The ultimate pump suction and discharge piping sized shall be
selected such that a velocity of between two and eight feet per second is
achieved.
ii. The discharge piping systems shall be provided with sufficient valves to
effect proper operation and maintenance of the pump station during both
normal and emergency conditions.
I. Selected valves shall be suitable for use with raw, unscreened
wastewater and shall be of a design suitable for its function, its installation
location, as well as the normal and maximum operating pressures
expected at the pump station.
(i) A full-closing shut-off valve shall be provided on the discharge
piping of each pump and on the suction piping of each dry well pump.
(ii) A check valve shall be provided on the discharge piping of each
pump, between the pump and the shut-off valve. Check valves shall be
places in the horizontal position unless the valve is of a ball check-type.
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2. All valves shall be located such that they are readily accessible.
Valves shall be placed either in the dry well or in a separate valve vault.
b. Pipe Connections
i. Flexible pipe joints shall be used on pipes between the pump station
structures to allow for differential settlement without compromising the
integrity of the overall pump station.
ii. Pipe inlets and outlets of pump station structures shall be made
watertight.
iii. Existing pump station structures shall be core drilled or saw-cut when
connections are made through the structure wall. In no case shall
penetrations into pump station structures be made by hammering.
c. Water Service
i. Wherever practicable or required by the design, potable or reclaimed
water service shall be provided to the pump station.
ii. Cross-connection control for potable water services shall be provided in
accordance with I 5A NCAC I 8C .0406(b). Cross-connection control for
reclaimed water services shall be provided in accordance with I 5A
NCAC 02T .0909(f).
d. Pig Launching/Retrieval Stations
i. When pig launching and retrieval stations are made part of the pump
station, their design shall be such that they may be isolated from the
force main.
ii. The design of the pig retrieval station shall be such that accumulated
material dislodged from the force main may be properly removed and
disposed.
v. Appurtenances
a. Consideration shall be given to protecting pump station structures and equipment
from physical damage or clogging from solid material normally present in wastewater
• through the use of screening and other solids reducing equipment.
b. Pump Removal Methods/Equipment
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i. Provisions shall be so that the largest piece of equipment installed at the pump
station may be removed. Such provision may include supplying of hoisting
equipment and/or designing sufficient clearance around the pump station for
mobile hoisting equipment access.
ii. Pump station structures shall be provided with access hatches, doors, sky lights,
etc. of sufficient size such that the largest piece of equipment may be removed
without damaging the integrity of the structural design.
iii. Pump stations utilizing submersible pumps installed in wet wells shall be provided
with a system that allows for the removal and installation of the pumps without
requiring entry into the wet well.
I. Each pump shall be provided with a guide rail system and a lift-out chain.
2. Both the guide rail system and the lift-out chain shall be capable of
withstanding the forces required to disengage the pump from the wet well.
3. Both the guide rail system and the lift-out chain shall be manufactured of
stainless steel. Under no circumstances shall steel or galvanized steel be used.
c. Access Equipment
i. Each pump station structure shall be designed such that access to perform
routine and emergency operation and maintenance is easy, unobstructed, and
safe.
ii. Each pump station structure shall be provided with a separate means of access.
Under no circumstance shall access to the wet well be provided through a dry
well.
iii. Steps, ladders, stairs, landings, hatches, and other means of access shall conform
to OSHA standards as well as all applicable local and state building codes
regarding design characteristics.
d. Ventilation Equipment
i. Pump stations shall be adequately vented in accordance with I 5A NCAC 02T
.0350(h)(3) as well as in complete compliance with all applicable local and state
building codes as well as OSHA and NFPA standards.
ii. At a minimum, pump station wet wells shall be provided with a gooseneck-type
vent. Active ventilation units shall also be acceptable.
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I. Vents shall be constructed of sturdy material that is resistant to
ultraviolet light and adequately supported to withstand damage during normal
and emergency operation and maintenance.
2. Vent elevations shall be a minimum of two feet above the 100-year flood
elevation as identified on the most recent FEMA map when available or as
established through appropriate modeling techniques.
3. Vents shall be provided with an insect/bird screen of stainless steel,
aluminum, corrosion-resistant material. Under no circumstances shall steel or
galvanized steel be used.
iii. Dry wells or other enclosed pump station structures into which routine
operator entry is required shall either have a positive-pressure ventilation
system that meets, at a minimum, the requirements of NFPA 820 "Standard for
Fire Protection in Wastewater Treatment and Collection Facilities.".
Consideration shall be given to installing sensor and alarm systems to detect the
accumulation of dangerous levels of hazardous gases.
e. Other Equipment
i. Consideration shall be given to controlling the pump station temperature and
humidity to a level appropriate for reliable operation of the electrical and
instrumentation/control systems.
ii. Pump station structures other than the wetwell shall be provided with a means
to remove accumulated water and wastewater from the structure. All floor and
walkway surfaces shall be sloped such that water and wastewater drains to the
removal area under the influence of gravity. Acceptable removal means include
the following:
I. An appropriately-sized drainage pipe.
(i) The drainage pipe shall convey accumulated water and wastewater to the
wet well or other available entry point into the wastewater collection
system. Under no circumstances shall the drainage pipe convey
accumulated water and wastewater to daylight, into a surface water, or
into the ground.
(ii) The discharge of the drainage pipe shall be higher than the high-water
alarm activation level in the wet well or the maximum water level
expected at the other available entry point into the wastewater collection
system.
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(iii)The drainage pipe shall be provided with device to prevent backflow of
wastewater and gases from the wet well into the structure.
k. Electrical and Instrumentation/Control Systems Design
i. General Requirements
a. Electrical systems for pump stations shall be designed and installed in strict
conformance with NFPA 70 "National Electric Code," ANSI, as well as all
applicable federal, state, and local codes.
i. In general, electrical and instrumentation/control systems and components
shall be protected against corrosive conditions.
ii. If located in a wet well or other location where explosive or flammable gases
may concentrate, electrical and instrumentation/control systems and
components shall meet the requirements for a Class I, Group D, Division I
location.
b. Each pump and motor unit shall be provided with a separate electrical supply,
motor starter, alarm sensors, as well as electrical and instrumentation/control
systems and components.
i. Electrical and instrumentation/control systems and components shall be
located such that they may be disconnected from outside a wet well.
ii. Cables and conduits shall be provided with seals that are both water-tight
and gas-tight, shall be protected from corrosion, and shall allow separate
strain relief.
c. The main power feed to all pump stations shall be equipped with an above-grade,
fused disconnect switch.
ii. Enclosures
a. Enclosures for electrical and control components for the pump station shall be
located outside of the wet well and in a location such that they are readily
accessible, ensure maximum electrical and personnel safety, and are protected
from damage due to vehicular traffic and flooding.
b. Enclosures shall have a NEMA-rating that is appropriate for the installation
location at the pump station.
i. If not housed, enclosures shall have a minimum NEMA 3R rating. NEMA 4X
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enclosures shall be used in locations where the potential for flooding and the
development and accumulation of corrosive gases exist. NEMA 4X stainless
steel enclosures shall be used for all outdoor installations.
ii. Enclosures shall be protected by a conduit seal or other appropriate sealing
method that meets the requirements of NFPA 70 to protect the wet well
atmosphere from gaining access to the enclosure. This seal shall be located
such that it will not be disturbed during routine operation and maintenance
functions at the wet well for a Class I, Division 2 location.
c. All enclosures as well as all switches and indicator lights, whether mounted on an
inner door or face of the enclosure, shall be provided with a label that conforms
to UL descriptions and procedures.
d. The applicant's lock-out/tag-out procedures shall be considered in the design of
all enclosures to be installed at the pump station.
iii. Instrumentation and Controls
a. Wastewater Level Sensing Equipment
i. Pump station cycles, as described in Section 2.04A.2., shall be controlled
through the use of wastewater level sensing equipment in the wet well.
ii. At a minimum, wastewater levels within the wet well shall be detected
through the use of sealed mercury-type float switches. In the event that an
alternate method of level detection (i.e., bubble tube, ultrasonic meter, etc.)
is used, a float switch at the high-water alarm level shall be installed as a
back-up.
iii. Wastewater level sensing equipment shall be used to indicate the following
levels and operate the pump station correspondingly: all pumps off, lead
pump on, lag pump on, and high-water alarm.
iv. Wastewater level sensing equipment shall be located so as not to be affected
by flows entering the wet well or the turbulence created by the suction of
the pump.
b. Components
i. The pump station shall be equipped with sufficient instrumentation/control
systems and components to monitor and control key operating conditions.
ii. At a minimum, the following systems and components shall be provided for
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the pump station:
I. Pump Station Function
(i) Each pump installed at the pump station shall be provided with a
"Hand-Off-Auto" selector switch so that the operational mode of the
pump may be selected.
(ii) Each pump installed at the pump station shall have a pump run timer
that is capable of keeping a cumulative log of the operational time of
each pump.
2. Sufficient indicator lights shall be used to demonstrate the operational
status of the pump station. The indication lights shall be specific to the
condition detected. At a minimum, indicator lights shall be provided for each
pump to indicate a pump on condition and a pump alarm/failure condition.
3. Weather-proof audible and visual alarms that are external to any
structure or enclosure shall be provided at the pump station in accordance
with I5A NCAC 2H .0219(h)(5). In the event of a power loss at the pump
station or a failure of the automatically-activated stand-by power generation
source, the alarm system shall be operated from a battery back-up power
source. This battery back-up power source shall be provided with
continuous charge. At a minimum, the following conditions shall be
monitored by the system, and each shall cause activation of the audible and
visual alarms:
(i) Pump failure.
(ii) Wastewater level sensing failure (if applicable).
(iii) High-water in the wet well.
(iv) High-water level in the dry well sump (if applicable).
(v) Loss of telemetry transmission line (if applicable).
(vi) Loss of power supply.
(vii)Automatically-activated stand-by power generation source failure (if
applicable).
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4. A telemetry system shall be installed at all pump stations
regardless of the reliability method employed in the pump station
design.
(i) The telemetry system shall contact personnel capable of initiating a
response to a pump station alarm condition 24 hours per day, 365
days per year.
(ii) In the event of a power supply loss at the pump station or a failure of
the automatically-activated stand-by power generation source, the
telemetry system shall be operated from a battery back-up power
source. This battery back-up power source shall be provided with
continuous charge.
(iii)The telemetry system shall be activated for any of the following alarm
conditions: high-water in the wet well, pump failure, loss of power
supply, and automatically-activated stand-by power generation source
failure (if applicable).
5. Appurtenances
(i) Sufficient I I 0-volt electrical receptacles shall be provided to facilitate
maintenance at the pump station. If located in an outdoor area, the
receptacles shall be of the ground fault interruptible type and shall be
protected from the weather elements.
(ii) If reliability for the pump station is based on a contingency plan that
involves portable power generation units (see Section 5.04B.3.), the
pump station shall be provided with a quick connection plumbing port
for a mobile by-pass pump.
iv. Reliability
a. Pump station reliability shall be in accordance with 15A NCAC 02T .0350(h)(I)
and shall be considered a key, integral part of the overall pump station design.
b. One of the following reliability options shall be incorporated into the pump
station design:
i. The pump station shall be connected to multiple power sources.
I. A multiple power source shall be defined as a completely separate power
feeder line(s) connected to the pump station from a substation or
transformer that is independent from the primary feeder.
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2. Each separate substation or transformer and associated transmission lines
shall be capable of starting and operating the pump station at its rated
capacity.
ii. The pump station shall be connected to an automatically-activated stand-by
bypass pumping system. The pumping system will operate independently
from the pump station submersible pumps and be activated by an
independent level sensor/float system.
I. The permanently installed emergency back-up pumpset specified in this
section will be used to pump wastewater and raw sewage in
applications requiring a suction lift or as an inline booster pump.
2. The pump and accessories shall be supplied by the pump manufacturer.
3. The pump shall be fitted with a fully automatic priming system
incorporating an air compressor, air ejector assembly, and an air/water
separation tank. The priming system shall be capable of priming the
pump from a completely dry pump casing. The air ejector shall operate
on the discharge side of the compressor, eliminating the possibility of
water being drawn into the air source. The pump must be capable of
running totally dry for periods up to twenty-four hours, then
automatically re-priming and returning to normal pumping volumes
without need for any adjustment.
4. The priming system shall not use a vacuum or diaphragm pump, nor
require the use of a"Foot"-type valve. It shall contain no moving parts
or protective float gear. Priming systems that require manual water
additions to facilitate pump priming are not acceptable. A
demonstration of the pump's ability to repeatedly cycle from dry
suction/ pump/snore/ repriming/pump shall be required. This will
necessitate the draining of all residual water from the pump case to
initiate a dry suction starting condition.
5. Pump and priming system shall be fully automatic, needing no form of
adjustment or manual addition of water for the priming system. The
pump shall be capable of static suction lifts to twenty-eight vertical feet,
at sea level. It shall also be capable of operation using extended suction
lines.
6. Equipment acceptance shall be contingent upon the pumps ability to run
continuously at full speed in a completely dry condition for periods up
to twenty-four hours. This may require the draining of all residual
water in the pump casing to simulate a dry suction/case condition. The
engineer may require a demonstration.
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7. The engine and pump shall be completely enclosed with fourteen-gauge
sheet metal panels backed with one-inch and two-inch layers of
polydamp acoustical sound-deadening material. The acoustical
enclosure shall reduce pump and engine noise to sixty-eight dBA or less
at a distance of thirty feet. The enclosure shall be removable for easy
access to the engine/pump for maintenance and repair. The enclosure
doors shall all be equipped with latches that are keyed alike. For
maintenance and service needs, the enclosure sides shall have hinged
doors for quick access to the engine oil fill, fuel fill port, oil dipstick, and
filters.
8. A complete submittal of the bypass pumping system shall be submitted
to Pluris for review. This submittal shall include all engineering
calculations for the system. Pluris may be contacted prior to bypass
system design for additional specifications and acceptable system
manufacturers.
I. Operations and Maintenance (O&M) Manuals
i. An O&M Manual shall be prepared for each pump station and shall be made available
to the applicant upon start-up of the pump station/force main system.
ii. A copy of the O&M Manual shall be kept at the applicant's main office. The O&M
Manual shall be kept on file for the life of the pump station and updated as required.
ii. At a minimum, O&M Manuals shall contain the following minimum information:
a. Approved shop drawings, including design data for all installed equipment and
each major component and a pump curve/system curve analysis showing the
design operating point(s).
b. Control panel wiring diagrams.
c. Warranty information for all installed equipment and each major component.
d. Inventory, functional descriptions, and complete operating instructions for all
installed equipment and each major component.
e. Instructions for start-up/shut-down as well as for calibration and adjustment of
all installed equipment and each major component.
f. Recommended maintenance management system, including preventative and
predictive maintenance, for all installed equipment and each major component.
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g. Contingency plan and analysis of critical safety issues.
h. Contact information for local service companies as well as instructions for
replacement of all installed equipment and each major component.
i. Contact information for local contractors capable of performing emergency
repairs.
j. Contact information for regulatory and other agencies.
3. Testing
a. Operational Test - Before the operational test is conducted, the required copies of the
Operation and Maintenance Manuals shall be delivered to Pluris and the wet well shall
be thoroughly cleaned to remove dirt, mud, gravel and other foreign debris. The
operational test shall check the proper functioning of the pumps and pump controls.
The pump and motor serial numbers shall be verified. All components and motor serial
numbers shall be verified. All components of the pump station shall be checked to
ensure that they are capable of performing the service intended. The operational test
shall be performed by Pluris. The Contractor or Developer shall ensure that a
representative from the pump station equipment manufacturer is present at the
operational test to review proper operation of the equipment with Pluris personnel.
b. Contractor's Responsibility - The Contractor shall furnish all materials, labor, and
equipment to perform all testing. Water for testing purposes will be provided by Pluris.
The Contractor shall coordinate with Pluris for the use of water for testing.
c. Watertightness Testing (Pump Station Testing)
i. Wetwells and other wastewater-containing structures at the pump station shall be
inspected and tested for watertightness.
ii. The watertightness test for the wet well and other wastewater-containing structures
at the pump station shall be completed separately and independently of the leakage
test performed on the force main as required in Section 6.04D of the NCDENR
Minimum Design Criteria.
iii. The watertightness test shall be performed in the presence of the applicant, the PE,
or other authorized representative.
iv. The watertightness test shall be performed in accordance with ACI 350.1 R "Testing
Reinforced Concrete Structures for Watertightness," AWWA D 100 "Welded Steel
Tanks for Water Storage," or the manufacturer's recommendations. A vacuum test
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method in accordance with ASTM C 1244 "Standard Test Method for Concrete
Sewer Manholes by Negative Test Pressure (Vacuum) Test" may be used for small
diameter wetwells in lieu of a hydraulic test
a. Unless the pump station wetwell is constructed of cast-in-place concrete, testing
shall not commence until the structure being tested has been fully assembled and
backfilling is complete.
b. All inlets and outlets in the structure shall be temporarily plugged and braced or
otherwise sealed prior to initiating the test.
c. Pump station wetwells that fail to meet the watertightness test requirements
shall be inspected, made watertight, and retested until the test passage is
assured.
d. Pump Testing
i. Factory Testing
a. All pumps shall be tested by the manufacturer in accordance with the
appropriate UL standard prior to shipment for installation.
b. The results of all factory testing shall be maintained by the applicant as part of
the construction record documentation as stipulated in NC DENR's Minimum
Design Criteria for the Fast-Track Permitting of Pump Stations and Force Mains
Section 1.03B.
ii. Drawdown Testing
a. Following installation, each pump in the pump station shall be subjected to a
drawdown test or other similar testing procedure to confirm that the pump is
operating at or near the required design operating point(s).
b. The drawdown test shall be performed in the presence of the applicant, the PE,
or other authorized representative.
c. The results of all drawdown testing shall be maintained by the applicant as part
of the construction record documentation as stipulated in NC DENR's Minimum
Design Criteria for the Fast-Track Permitting of Pump Stations and Force Mains
Section I.03B.
iii. Witnessed Testing
a. Consideration shall be given by the applicant to require a witnessed test for large
97

pumps, pumps in critical installations, or pump replacement/repair situations.
b. All witnessed testing shall be performed in accordance with the appropriate HI
standard.
c. Witnessed testing shall be performed in the presence of the applicant, the PE, or
other authorized representative.
d. The results of all witnessed testing shall be maintained by the applicant as part of
the construction record documentation as stipulated in NC DENR's Minimum
Design Criteria for the Fast-Track Permitting of Pump Stations and Force Mains
Section I.03B.
e. Electrical and Instrumentation/Control System Testing
i. The applicant shall ensure that a formal testing program of all electrical as
well as instrumentation and control systems installed at the pump station is
developed and performed.
ii. The program may consist of a combination of unwitnessed/witnessed factory
tests, field readiness tests, and witnessed field tests. At a minimum, however,
the applicant shall witness a field test of the pump station's electrical and
instrumentation/control systems. The basic functions which shall be tested
for operation as intended by the pump station design shall include, but shall
not be limited to, the following:
a. Pump operational functions.
b. Level-sensing equipment.
c. Alarm system.
d. Telemetry system.
e. Stand-by or emergency power system.
iii. All testing of the electrical and instrumentation/control systems shall be
performed in the presence of the applicant, the PE, or other authorized
representative.
iv. The results of all testing shall be maintained by the applicant as part of the
construction record documentation as stipulated in NC DENR's Minimum
Design Criteria for the Fast-Track Permitting of Pump Stations and Force
Mains Section I.03B.
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4. Electrical
a. General - Electrical service to all pump stations shall be three phase, 240or 460 V AC
with a wye connection. The electrical power entrance shall be through a meter base,
followed by a NEMA 4X heavy duty, single throw, fusible safety switch with a solid
neutral; followed by a NEMA 4X heavy duty, double throw, three pole safety switch
which feeds the control panel from one side and heavy duty, circuit breaking 4 wire, 4
pole receptacle assembly as manufactured by Crouse-Hinds or other approved equal
from the other side. All of these electrical components shall be suitably sized to be
capable of service with both sewage pumps running.
All electrical components, including panel shall be sealed off with Ductiseal type sealant
in accordance with the N. C. Electrical Code requirements for electrical service to gas
pumps.
b. Control Equipment Enclosure
i. NEMA4X Enclosure - Enclosure shall be a NEMA type 4X_and be of suitable size to
house all components. A locking hasp shall be provided in addition to screw clamp
type latches. Enclosure shall be fabricated from 14 gauge steel. The top of the
enclosure shall serve as a drip shield and the seam free sides shall prevent rain and
sleet from entering. Inner panel shall be made of I gauge steel and shall be painted
white. The enclosure and interior panel shall be painted with heat fused modified
polyester powder, electrostatically applied over a phosphatized base. Enclosure shall
be ANSI/ASI 61 grey.
ii. Hinged Inner Door—An inner door shall be furnished. Overload reset push buttons,
circuit breakers, switches and pilot lights shall be the only components accessible
with door closed. Door shall be hinged and may be opened when service is required.
iii. Line Terminal Block — A terminal block shall be furnished with properly sized line
lugs to accept the main power source entering the control panel. Load lugs shall be
adequate to accept all required load side wiring requirements. All live parts shall be
fully shielded.
iv. Motor Circuit Breakers (240 V AC) - A properly sized, molded case, thermal
magnetic circuit breaker shall be provided for each pump motor. Line and load sides
shall be equipped with lugs properly sized for the horsepower and current rating of
the motor(s). They shall be attached to mounting brackets which are specifically
manufactured for use with the particular circuit breaker. The interrupting rating shall
be 10,000 RMS symmetrical amps.
v. Transformer Primary Circuit Breaker (When Transformer Is Required) —A properly
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sized, two pole, molded case circuit breaker shall be furnished ahead of the control
power I20 V AC power transformer for short circuit protection and disconnecting
power to the transformer. The circuit breaker shall conform to the specifications
for the motor circuit breaker(s).
vi. Control Power Transformer (When Neutral Is Not Available at Jobsite — Std. on
460 V AC) - An industrial quality control transformer shall be furnished to provide
control voltage. The transformer shall be sized with an adequate KVA rating to
provide 120 V AC power for all items required in the control and alarm circuits. -
Transformer shall be protected in its secondary by properly sized fuses and/or
circuit breaker(s).
•
vii. Magnetic Contactors and Overload Relays- A magnetic contactor shall be furnished
for each motor. A separate, panel mounted, 3 leg (three phase) or I leg (single
phase) overload relay shall be supplied for each motor. Each leg of the overload
relay shall be equipped with a properly sized overload heater. Contractor and
overload relay shall be properly sized for the required horsepower, voltage and
phase.
viii. Elapsed Time Meters —Six digit, non-resetable elapsed time meters shall be mounted
in the control panel enclosure t o record the running time of each pump.
ix. Condensation Strip Heater with Thermostat A strip heater shall be furnished to
prevent condensation within the control panel enclosure. The heater shall be
controlled by a panel mounted, adjustable thermostat.
x. Phase and Voltage Monitor- A phase failure, reversal and under voltage monitor shall
be supplied to prevent the motors from running under low voltage, phase loss, or
phase reversal conditions. The monitor will lock out the control circuit until the
problem is corrected and automatically reset.
xi. Lightning Arrestor- Suitable lightning arrestors shall be provided to protect motors
and control equipment from lightning induced line surges.
xii. Thru-Door Overload Reset Push Buttons - Overload reset push buttons shall be
provided for each overload relay. Push buttons shall be mounted so that with inner
door closed, overload relays may be reset without entering high voltage
compartment.
xiii.Switches - Heavy duty industrial grade oiltight switches shall be provided for each
pump for "Hands-Off-Automatic' operation selection. All switch components shall
be made of corrosion resistant metals and polyesters. Contact blocks shall be made
of see-through polycarbonate for simplified inspection of contacts, Cams and strokes
shall be Teflon impregnated for abrasion free service without lubrication. The
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switches required shall be as follows:
Switch Function Voltage
(Name Plate)
Manual-off-Automatic 120 V AC
xiv.Pilot Lights — Full voltage heavy duty industrial grade oiltight pilot lights shall be
provided. All pilot light components shall be made of corrosion resistant metals and
polyesters. An insulated socket shall be furnished to eliminate the possibility of
shock during bulb change. Lens shall be made of lexan. The pilot lights required shall
be as follows:
Pilot Light Function Voltage Lens Color
(Name Plate)
PUMP I I20 VAC GREEN
PUMP 2 120 V AC GREEN
xv. Seal Failure Circuit Test Push Button (illuminated) - Heavy duty industrial grade
oiltight push buttons shall be provided for each submersible pump motor. All push
button components shall be made of corrosion resistant metals and polyesters.
Contact blocks shall be made of see-through polycarbonate for simplified inspection
of contacts. An insulated socket shall be furnished to eliminate the possibility of
shock during bulb change. Lens shall be made of lexan. The push buttons required
shall be as follows:
Pilot Light Function Voltage Lens Color
(Name Plate)
PI SEAL FAIL I20 VAC AMBER
P2 SEAL FAIL 120 V AC AMBER
xvi.Pump Alternator Circuit (For Duplex Pump Operation) - The electromechanical
alternator relay shall be of industrial design specifically for use in pump applications.
It shall have single pole double throw heavy duty 10 amp silver cadmium oxide
contacts enclosed in a transparent cover. The snal action contacts shall transfer
when the unit is deenergized. The circuit shall never be closed or opened while
current is being conducted. The alternator circuit shall alternate the lead pump
position between the pumps and shall allow the lag pump to start in response to a
rising water level in the wetwell. (P I —ALT— P2 selector switch)
xvii. Power Failure - Once power is restored after a failure and the pump has pumped
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the water from alarm level down to pump off, the alarm should automatically reset
itself.
xviii. Control Relay(s) - Plug-in control relays with 120 V AC coils shall be provided as
required. Contact rating shall be 5 amps (minimum). Sockets shall be of the same
manufacture as the relays and hold-down clips shall be furnished to prevent relay
form sliding out of the socket.
xix.High Wetwell Level Alarm - The control panel shall be provided with a suitable
alarm circuit, activated by a separate level control. This alarm shall signal a high
water condition in the sump. Terminals shall be furnished in the control panel for
connection of an externally mounted alarm device. A red flashing light shall be
provided as a visual alarm and a horn provided as an audible alarm of the high water
condition in the wetwell. The pump station shall also be equipped with buttons to
both test and silence the horn.
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Part VIII Simplex Stations
1. Pluris Policy on Allowing Simplex Stations
i. It is the intention of Pluris to limit the addition of new simplex pump stations to the
current collection system. New simplex pump stations will only be allowed under the
following conditions:
a. Service areas with gravity collection systems will require a gravity service for
residences. In the case where a gravity service is not practical due to low lot
elevations, a simplex station may be allowed on a case by case basis. These
situations will allow for a simplex station to pump to a gravity line only. In this
situation the pump station is the sole jurisdiction of the NC Plumbing Code and will
not be incorporated into the collection system.
Large numbers of simplex stations pumping to gravity collection lines will not be
allowed in new developments and will in no way account for more than 5% of the
total services for any development.
b. In areas where force mains are installed and no gravity line is within reasonable
distance, simplex pump stations will be allowed by Pluris approval on a case by case
basis. Pluris reserves the right to require any developer or applicant to install
gravity collection lines and standard duplex pump stations as outlined in Part VII of
these specifications. Multiple homes, multifamily structures, and areas of new
development will not be permitted to install simplex pump stations in lieu of
conventional gravity collection systems.
c. Simplex pump stations will be permitted for single family home sites only. The use
of simplex pump stations for commercial use shall not be permitted unless the
following conditions apply:
i. The projected average daily flow for the facility is less than the current single
family equivalent for a three bedroom residence in the same area. This includes
areas that have been granted flow reductions. In no way shall a commercial
service be allowed to use a simplex pump station exceeds the average daily flow
of 360 gallons per day. The applicant must provide flow calculations signed and
sealed by a NC Professional Engineer outlining the average daily flow for the
facilities. These calculations shall reflect the standard rates of discharge allowed
for such facilities by NCDENR regulation., specifically I 5A NCAC 02T .0305 and
all applicable design criteria and future revisions of this rule.
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ii. The applicant will obtain a variance for the use of a simplex pump station from
the NCDENR.
iii. The applicant will provide all required permits and design documents for the
pump station. All required permitting, design fees, permit fees, material costs,
installation costs and any other applicable costs will be the responsibility of the
applicant.
d. All costs associated with the installation of a simplex pump station will be the
responsibility of the Applicant. This includes but is not limited to the cost of any
required permits or variances, design fees, material costs, installation costs, testing
and inspection costs or any other applicable fees.
e. If required by NCDENR the Applicant will furnish, at his or her expense, a hydraulic
model of the proposed simplex station and its effect on the collection system. This
model will be used to determine required head pressures, pump size and other
design criteria. This model data will be provided to Pluris for review and will
become the intellectual property of Pluris.
f. If required by NCDENR the Applicant will apply for a variance for a simplex pump
station based on the rules and requirements of NCDENR specifically the August
2008 Draft Alternative Design Criteria for Minimum Separation for Sewer Systems
to Wetlands I 5A NCAC 2T .0305(f) and the Policy for Meeting the Reliability
Requirements of I5a NCAC 2T .305(h)(I)(D) for Pressure Sewers Utilizing Simplex
Pump Stations.
g. The electrical service and power consumption for all simplex stations will be the
responsibility of the Applicant. This responsibility will transfer to any person or
entity that purchases any real estate served by a simplex pump station.
2. Simplex Pump Station Design
i. Siting—All simplex pump stations will be sited on the Applicant's private property and
not located in a public right of way. The location of all simplex pump stations will be
approved by Pluris. The simplex pump station will be located in a recorded utility
easement in an area that provides the shortest distance from the pump station to the
connection point in the collection system. All applicable separations as stated in NCAC
2T .0305 will be met. For installations that are unable to meet the required separations,
the applicant may apply for a variance from NCDENR.
Care will be taken not to locate the pump station in excessive vegetation or landscape
position that hinders maintenance of the station.
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ii. Approved manufacturers—All simplex stations will be manufactured for use as a
package system complete with all required valves, piping, level control devices, wet
wells, control panels and all other appurtenances required. Simplex pump stations will
be manufactured by Meyers or other approved manufacturer. The applicant will furnish
all specifications, shop drawings, cut sheets and other applicable information to Pluris
prior to approval for installation and connection to the collection system.
iii. Materials—All materials used in the simplex pump station will correspond to industry
standards for use with sanitary sewage. All materials shall be non-corrosive such as
stainless steel, aluminum, plastic, fiberglass or composite whenever practical. Pluris
reserves the right to deny the installation of any package system that uses substandard
corrosive materials.
iv. Wetwell Storage
a. The wet well of a simplex pump station will meet the required to meet the Policy
for Meeting the Reliability Requirements of I5a NCAC 2T .305(h)(I)(D) for
Pressure Sewers Utilizing Simplex Pump Stations. The requirements for storage are
as follows:
I. The first option for meeting reliability requirements is to provide 24 hours
storage in the wet well above the pump-on elevation as requested in the permit
application. However, since this may add to the cost and make installation
difficult in certain areas, another option may be pursued.
Alternatively, the applicant may provide documentation regarding both power
reliability and response times for pump replacement.
a. In the case of power reliability, 3 years of power history data in the area
from the power company must be provided. The amount of storage required
shall be equal to the duration of the longest power outage (minus
catastrophic events such hurricanes). Storage shall be provided above the
pump-on elevation.
b. For response times, the applicant shall provide an estimate of the response
time to replace a failed pump. The estimate shall include time for answering
after hours calls, travel time to maintenance shop, preparing equipment to
respond, travel time to site, and time to replace the pump. For existing
systems, the Permittee should indicate if they currently maintains a supply of
pumps on hand at this time (a permit condition). Also, personnel must be on-
call 24 hours a day, 7 days a week as well as a phone number with 24-hour
answering service clearly posted on the pump station. Storage shall be
provided above the high water alarm.
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2. A minimum of 120 gallons of storage above alarm shall be included in the
evaluation.
3. These storage requirement are not cumulative, rather, the storage which
provides the largest wet well shall be specified.
4. Storage in the service line to the pump station will not be included in these
calculations.
b. All wet wells shall be installed a minimum of 2 feet above the 100 year flood
elevation unless a variance is granted by NCDENR.
v. Pump Sizing—Simplex pumps will be sized based upon a hydraulic model of the
collection system and the anticipated head pressure at the force main connection point.
At no time will the pump size be less than 2 HP. Where a hydraulic model of the
system is not required by NCDENR the default pump size will be a 2 HP grinder pump.
The pumps shall be a Meyers WGL20-2I 2 HP capable of pumping 20 gallons per minute
at 56 feet of total dynamic head or equal.
vi. Control Panel—The control panel shall be a single phase 230 volt simplex panel with
visual and audible alarms. The enclosure shall be a NEMA-4X rated enclosure with a
gasketed door. The control circuit shall be single phase 120 volts. The control panel
shall meet or exceed the specifications of the pump manufacturer and have the
following:
a. A Hand — Off—Automatic control Switch
b. Cycle counters and elapsed time meters
c. Audible alarm and Visual alarm
d. The control panel shall meet all NC Building codes and NEC codes and the power
to the panel shall be installed by a licensed electrician.
e. All control panels shall be installed a minimum of 12 inches above the 100 year flood
elevation unless'a variance is granted by NCDENR.
vii. Venting—The wet well shall be vented above the 100 year flood elevation and the vent
shall have a no corrosive insect screen installed.
viii.Antiflotation —The applicant will demonstrate through signed and sealed engineering
calculations, a method of restraining the wetwell from flotation during flood events or
high ground water. Typical restraints shall include a concrete lug poured around an
extended lip manufactured into the wetwell.
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3. Testing
i. All simplex pump stations and associated force mains will be tested for operation and
leakage. All control mechanisms, alarms and control panel functions will be verified.
ii. In cases where the system was designed by a NC Professional Engineer and permitted
through NCDENR, the Engineer's and Owner's certifications will be provided to Pluris
prior to the system being activated.
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