HomeMy WebLinkAboutWQ0030388_Application_20060613Z
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,4CK APPLICATION for GRAVITY SEWERS, PUMP STATIONS, AND FORCE MAINS PAGE 3
USE THE TAB KEY TO MOVE FROM FIELD TO FIELD! Application Number:
(to be completed by DWQ) W00030388
1. Owner:
la. Hoke County
Full Legal Name (company, municipality, HOA, utility, etc.)
1b. Mike Wood, County Manager
Signing Official Name and Title (Please review 15A NCAC 2H .0206(b) for authorized signing officials!)
1c. The legal entity who will own this system is:
❑ Individual ❑ Federal ❑ Municipality Z State/County ❑ Private Partnership ❑ Corporation ❑ Other (specify)
id, 227 North Main Street
Street Address
1f. North Carolina
State
le. Raeford
City
1 g. 28376
Zip Code
1 h. (910) 875-8751 1 i. (910) 875-9222 1j. county
Telephone Facsimile E-mail
2. Project (Facility) Information:
C
2a. Hoke County Regional Industrial Park Sewer System 2b. Hoke County
Brief Project Name (permit will refer to this name) County Where Project is Located
3. Contact Person:
3a. John C. Grey, PE, The Wooten Company
Name and Affiliation of Someone Who Can Answer Questions About this Application
3b. (336) 626-5322 3c. jgrey@thewootencompany.com
Phone Number E-mail
1. Project is ® New ❑ Modification (of an existing permit) If Modification, Permit No.:
For modifications, attach a separate sheet clearly explaining the reason for the modification (i.e. adding another
phase, changing line size/length, etc.). Only include the modified information in this permit application - do not
duplicate project information in B(7) and B(10-11) that has already been included in the original permit.
2. Owner is Z Public (skip to Item B(3)) ❑ Private (go to Item 2(a))
2a. If private, applicant will be: 2b. If sold, facilities owned by a (must choose one)
❑ Retaining Ownership (i.e. store, church, single office, etc.) or ❑ Public Utility (Instruction 111)
Z ❑ Leasing units (lots, townhomes, etc. - skip to Item B(3)) ❑ Homeowner Assoc./Developer (Instruction IV)
O ❑ Selling units (lots, townhomes, etc. - go to Item B(2b))
Q 3. City of Raeford
Owner of Wastewater Treatment Facility (WWTF) Treating Wastewater From This Project
2301731
cauNTr COUNTY OF HOKE
SP.O. BOX 580
RAEFORD, NC 28376
`E �`� THIS DISBURSEMENT HAS BEEN APPROVED
r4 uEp AS REQUIRED BY THE LOCAL GOVERNMENT
BUDGET AND FISCAL CONTROL ACT.
PAY
TO THE
ORDER
RBC
Cen
Centura
BBC CENTURA BANK CHECK NO.
66-85/531
230173
VOID AFTER 60 DAYS
VENDOR CHECK DATE CHECK AMOUNT
3911 05/25/200 $400.0
********400 DOLLARS AND NO CENTS
CENTRAL DEPITORY
Qh� .
NCDENR-DIV OF WATER QUALITY / HAIRMAN
1617 MAIL SERVICE CENTER lo
RALEIGH NC 27699-1617 V, -, ':c,
I E CMAT17MAN
II'
FAST -TRACK APPLICATION for GRAVITY SEWERS; PUMP STATIONS, AND FORCE MAINS PAGE t
g,N :� l
0,N A 7-, : State of North Carolina
Q JUN 13 2006 Department of Environment and Natural Resources
i��� Division of Water Quality
�i FAST -TRACK APPLICATION
for GRAVITY SEWERS, PUMP STATIONS, AND FORCE MAINS
COPY(Pressure sewers systems are not to be included as part of this application package)
INSTRUCTIONS: Indicate that you have included the following list of required application package items by checking the
space provided next to each item. Failure to submit all required items will lead to your application being returned as
incomplete or additional processing and review time. This form may be photocopied for use as an original.
® I. Application Form - Submit one original and one copy of the completed and appropriately executed application
form. Any changes to this form will result in the application being returned. The Division of Water Quality
(Division) will only accept application packages that have been fully completed with all applicable items
addressed. You do not need to submit detailed plans and specifications unless you respond NO to Item B(12).
® Il. Application Fee - Submit a check in the amount of $400 made payable to: North Carolina Department of
Environment and Natural Resources (NCDENR).
❑ III. Certificates of Public Convenience and Necessity — If the application is being submitted in the name of a
privately -owned public utility, submit two copies of the Certificate of Public Convenience and Necessity (CPCIJ)
which demonstrates that the public utility is authorized to hold the utility franchise for the area to be served by the
sewer extension. If a CPCN has not been issued, provide two copies of a letter from the North Carolina Utilities
Commission's Public Staff that states that an application for a franchise has been received, that the service area
is contiguous to an existing franchised area, and/or that franchise approval is expected. The project name in the
CPCN or letter must match that provided in Item A(2a) of this application.
❑ IV. Operational Agreements — Submit one original and two copies of a properly executed operational agreement if
the sewer extension is permitted by a private applicant and will be serving residential or commercial lots (e.y.,
houses, condominiums, townhomes, outparcels, etc.) that will be sold to another entity. If the applicant is a
homeowners' association, use Form HOA 02/03. If the applicant is a developer, use Form DEV 02/03. EVEN IF
THE PROJECT WILL BE TURNED OVER TO A MUNICIPALITY, FORM DEV 02/03 IS REQUIRED.
® V. Flow Acceptance Letters — If the owner of the downstream sewers and/or WWTF is different from the applicant,
submit two copies of a flow acceptance letter from the owner of the downstream sewers and WWTF, if different.
Flow acceptance letters must contain the following minimum information: applicant and project name, amount of
flow accepted, and name and permit number of the receiving sewers/WWTF. The flow acceptance must not
expire prior to permit issuance and must be dated less than a year prior to the application date.
Intergovernmental agreements or other contracts will not be accepted in lieu of a project -specific flow acceptance
letter.
® VI. Map — Submit an 8.5-inch by 11-inch COLOR copy of the portion of a 7.5-minute USGS Topographic Map along
with this form. The map should identify the entire project area location as well as the closest downslope surface
waters as clearly as possible. Each map portion must be labeled with the map name and number, the identified
location of the sewer line and pump stations, and be of clear and reproducible quality. For instance, if the project
involves 4 miles of interceptor sewer that traverses over or near several different waterbodies (or counties,
basins, etc.), the map should have location ID's shown for each different waterbody (where the sewer line is within
100 feet of such waterbody - see Instruction VII). This location ID is self chosen and used to cross reference the
location in Section C of the permit application.
® VII. Stream Classifications — Section C
• If any portion of the project is within 100 feet of any down slope surface water, Section C must be completed
for the pertinent sections.
• If the entire project area is a minimum of 100 feet away from any down slope surface waters BUT there is a
pump station involved where a history of power outage is to be used to provide adequate design storage
instead of dual feed or permanent or portable generator, Section C must be completed to demonstrate that
the closest down slope surface water is Class C (see 15A NCAC 2H .0219(h)(3)(D)).
• Use the guidance document entitled, "Determining Watershed Classifications for Form FTA 02/03 (Fast -Track
Sewer Systems)" available from http://h2o.enr.state.nc.us/ndpu or by contacting the appropriate regional
office.
FTA 02/03 - Rev. 2 04/04
FAST -TRACK APPLICATION for GRAVITY SEWERS, PUMP STATIONS, AND FORCE MAINS PAGE 2
❑ Vill. Environr ,ental Assessments — If this project is subject" to an Environmental Assessment (EA) [15A NCAC
01C .0500], this application can not be used. Send the project application on Form PSFMGSA 10/99 to the
Non -Discharge Permitting Unit, 1617 Mail Service Center, Raleigh, NC 27699-1617. Applications can not be
processed until a Finding of No Significant Impact (FONSI) or Environmental Impact Statement (EIS) has been
issued. A copy is to be submitted with that permit application.
IX. Certifications — Section D
The application must be certified by both the applicant and a North Carolina Registered Professional Engineer
(PE). The applicant signature must match the signing official listed in Item A(1 b). The PE should NOT certify the
application if he/she is unfamiliar with 15A NCAC 2H .0200, the Gravity Sewer Minimum Design Criteria (mcst
recent version) and the Minimum Design Criteria for the Fast -Track Permitting of Pump Stations and Force Mains
(most recent version), as applicable to the project. Certification by a PE who is unfamiliar with these documents
is subject to NC Board referral.
THE COMPLETED FTA 02/03 APPLICATION PACKAGE, INCLUDING ALL SUPPORTING DOCUMENTS AND $400
FEE, SHOULD BE SENT TO THE APPROPRIATE REGIONAL OFFICE
REGIONAL OFFICE
ADDRESS
COUNTIES SERVED
Asheville Regional Office
Avery, Buncombe, Burke, Caldwell,
2090 US Highway 70
Cherokee, Clay, Graham, Haywood,
Swannanoa, North Carolina 28778
Henderson, Jackson, Macon,
(828) 296-4500
Madison, McDowell, Mitchell, Polk,
(828) 299-7043 Fax
Rutherford, Swain, Transylvania,
Yancey
Fayetteville Regional Office
225 Green Street Suite 714
Anson, Bladen, Cumberland, Harne t,
Fayetteville, North Carolina 28301
Hoke, Montgomery, Moore, Robeso i,
(910) 486-1541
Richmond, Sampson, Scotland
(910) 486-0707 Fax
Mooresville Regional Office
919 N Main Street
Mooresville, North Carolina 28115
Alexander, Cabarrus, Catawba,
(704) 663-1699
Cleveland, Gaston, Iredell, Lincoln,
(704) 663-6040 Fax
Mecklenburg, Rowan, Stanly, Union
Raleigh Regional Office
1628 Mail Service Center
Chatham, Durham, Edgecombe,
Raleigh, North Carolina 27699-1628
Franklin, Granville, Halifax, Johnston,
(919) 571-4700
Lee, Nash, Northampton, Orange,
(919) 571-4718 Fax
Person, Vance, Wake, Warren,
Wilson
Washington Regional Office
Beaufort, Bertie, Camden, Chowan,
943 Washington Square Mall
Craven, Currituck, Dare, Gates,
Washington, North Carolina 27889
Greene, Hertford, Hyde, Jones,
(252) 946-6481
Lenoir, Martin, Pamlico, Pasquotank,
(252) 975-3716 Fax
Perquimans, Pitt, Tyrrell, Washington,
Wayne
Wilmington Regional Office
127 Cardinal Drive Extension
Brunswick, Carteret, Columbus,
Wilmington, North Carolina 28405
Duplin, New Hanover, Onslow,
(910) 395-3900
Pender
(910) 350-2004 Fax
Winston-Salem Regional Office
585 Waughtown Street
Alamance, Alleghany, Ashe, Caswell,
Winston-Salem, North Carolina 27107
Davidson, Davie, Forsyth, Guilford,
(336) 771-4600
Rockingham, Randolph, Stokes,
(336) 771-4631 Fax
Surry, Watauga, Wilkes, Yadkin
For more information, visit our web site at: http://h2o.enr.state.nc.us/ndpu/
FTA 02/03 - Rev. 2 04/04
FAST -TRACK APPLICATION for GRAVITY SEWERS, PUMP STATIONS, AND FORCE MAINS PAGE 3
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USE THE TAB KEY TO MOVE FROM FIELD TO FIELD!
1. Owner:
1 a. Hoke C(
Full Legal Name (company, municipality, HOA, utility, etc.)
1 b. Mike Wood, County Manager
Application Number: �/DOOS0388
(to be completed by DWQ)
Signing Official Name and Title (Please review 15A NCAC 2H .0206(b) for authorized signing officials!)
1 c.
The legal entity who will own this system is:
❑ Individual ❑ Federal ❑ Municipality ® State/County ❑ Private Partnership ❑ Corporation ❑ Other (specify):
1 d.
227 North Main Street 1 e. Raeford
Street Address City
1f.
North Carolina 1g. 28376
State Zip Code
1h.
(910) 875-8751 1i. (910) 875-9222 1j. countymanager@hokecounty.org
Telephone Facsimile E-mail
2.
Project (Facility) Information:
2a.
Hoke County Regional Industrial Park Sewer System 2b. Hoke County
Brief Project Name (permit will refer to this name) County Where Project is Located
3.
Contact Person:
3a.
i
John C. Grey, PE, The Wooten CompanyI
Name and Affiliation of Someone Who Can Answer Questions About this Application
3b.
I
(336) 626-5322 3c. jgrey@thewootencompany.com
Phone Number E-mail
1.
Project is ® New ❑ Modification (of an existing permit) If Modification, Permit No.:
For modifications, attach a separate sheet clearly explaining the reason for the modification (i.e. adding another
phase,
changing line size/length, etc.). Only include the modified information in this permit application - do not
duplicate
project information in B(7) and B(10-11) that has already been included in the original permit.
2.
Owner is ® Public (skip to Item B(3)) ❑ Private (go to Item 2(a))
2a.
If private, applicant will be: 2b. If sold, facilities owned by a (must choose one)
❑ Retaining Ownership (i.e. store, church, single office, etc.) or ❑ Public Utility (Instruction III)
❑ Leasing units (lots, townhomes, etc. - skip to Item B(3)) ❑ Homeowner Assoc./Developer (Instruction IV)
❑ Selling units (lots, townhomes, etc. - go to Item B(2b))
3.
City of Raeford
Owner of Wastewater Treatment Facility (WWTF) Treating Wastewater From This Project
4a.
Raeford WWTF 4b. NCO026514
Name of WWTF WWTF Permit No.
—
5a.
City of Raeford
5b. 12-inch ;5c. W00018410
Owner of Downstream Sewer
Receiving Sewer Size 111 Permit Number of Downstream Sewer (if known)
6.
The origin of this wastewater is (check all that apply):
❑ Residential Subdivision ❑ Car Wash
❑ Institution
❑ Apartments/Condominiums o
El Hospital 25 /o Domestic/Commercial
El Mobile Home Park
❑ Church
❑ School 75 % Industrial
❑ Nursing Home
❑ Restaurant
❑ Office ® Other (specify): Industry & % Other (specify):
Manufacturing Facilities
7.
Volume of wastewater to be permitted in this project: 0 gallons per day
I
8.
If the permitted flow is zero, indicate why:
® Interceptor Line - Flow will be permitted is subsequent permits that connect to this line
❑ Flow has already been allocated in Permit No.
❑ Rehabilitation or replacement of existing sewer with no new flow expected
FTA 02/03 - Rev. 2 04/04
FAST -TRACK APPLICATION for GRAVITY SEWERS, PUMP STATIONS, AND FORCE MAINS PAGE 4
9
Provide the wastewater flow calculations used in determining the permitted flow in accordance with 15A NCAC 2H
.0219(I) for Item 13(7) or the design flow for line or pump station sizing if zero flow in the space below. Values other than
that in 15A NCAC 2H .0219(I)(1-2) must be approved prior to submittal of this application. Submit a separate request to
the Division of Water Quality, Non -Discharge Permitting Unit, 1617 Mail Service Center, Raleigh, NC 27699-1617 in
accordance with 15A NCAC 2H .0219(I)(3).
NA
10. Summary of Sewer Lines to be Permitted (attach additional sheets if necessary)
Size (inches)
Length (feet) Gravity or Force Main
(use the pull down menu)
6 4,810 Force Main
8 23,580 Force Main
G 10 13,525 Gravity
LLJ
12 8,275 Gravity
Z
C�
Z ENTER TOTAL LINE LENGTH IN MILES 9 5�
O
Q11. Summary of Pump Stations to be Permitted (attach additional sheets as necessary)
Location ID Power Reliability Option
(self chosen - as shown on Design Flow Operational Point (1- dual line feed; 2- permanent generator w/ATS; 3-
0 plans for cross-reference) (MGD) GPM @ TDH portable generator w/telemetry; 4-wet well storage)
LL Pump Station No. 1,
Z Golf Course Road 0.115 200 @ 60' 2-permanent generator MATS
~ Pump Station No. 2,
2 Pate Road 0.181 315 @ 138' 2-permanent generator MATS
W
12. Does the sewer system comply with the Minimum Design Criteria for the Fast Track Permitting of Pump Stations and Force
m Mains (latest version), the Gravity Sewer Minimum Design Criteria (latest version) and 15A NCAC 2H .0200 as applicable?
® Yes ❑ No If no, please reference the pertinent minimum design criteria or regulation and indicate why a
variance is requested:
SUBMIT TWO COPIES OF PLANS, SPECIFICATIONS OR CALCULATIONS PERTINENT TO THE VARIANCE WITH YOUR APPLICATION
13. Have the following permits/11 ce1. rtifications been submitted for approval?
Wetland/Stream Crossings - General Permit or 401 Certification? ❑ Yes ❑ No ® N/A
Sedimentation and Erosion Control Plan?
® Yes
❑ No
❑ N/A
Stormwater?
® Yes
❑ No
❑ N/A
FTA 02/03 - Rev. 2 04/04
FAST -TRACK APPLICATION for GRAVITY SEWERS, PUMP STATIONS, AND FORCE MAINS PAGE 5
1. Use the Division's guidance document entitled, "DETERMINING STREAM CLASSIFICATIONS FOR FORM FTA 02/03
(FAST -TRACK SEWER SYSTEMS)" to collect and record the stream classification data below (attach additional sheets as
necessary). This document is available from our web site or by contacting the appropriate Division of Water Quality
Zregional office (see instructions for addresses) OR indicate the following:
O
❑ A Stream Classification is not needed because all parts of the project are at least 100 feet away from any down slope
Qwaterbody; AND,
V ❑ A Stream Classification is not needed because the design does not depend on wet well storage as a power reliability
— option for any pump station near a Class C down slope waterbody.
LL
Cn
Location ID on Map
(self chosen - as shown on Name of Waterbody Stream Waterbody
map for cross-reference) Waterbody County River Basin Index Classification
O UT Rockfish Creek Rockfish Creek Hoke Cape Fear 18-31-(15) C
McNeills Mill Creek McNeills Mill Creek Hoke Lumber 14-22-2-0.4 C;Sw
Q UT Little Marsh Swamp Little Marsh Swamp Hoke Lumber 14-22-1-3 C;Sw
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Submit the 8.5" x 11" COLOR topographic map as required in Instruction VI
regardless of whether a classification is provided!
1. Applicant's Certification:
1, Mike Wood, attest that this application for Hoke County Regional Industrial Park Sewer System has been reviewed by
me and is accurate and complete to the best of my knowledge. I understand that if all required parts of this application
are not completed and that if all required supporting documentation and attachments are not included, this application
package is subject to being returned as incomplete. Note: In accordance with North Carolina General Statutes 143-
215.6A and 143-215.6B, any person who knowingly makes any false statement, representation, or certification in any
application 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. �7
1 a.
Signing Official Signature 7
2. Professional Engineer's Certification:
/,�z- /�,U S
Date
I attest that this application for Hoke County Regional Industrial Park Sewer System has been reviewed by me and is
accurate, complete and consistent with the information in the engineering plans, 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 the applicable regulations, Gravity Sewer Minimum Design Criteria for Gravity Sewers
adopted February 12, 1996, and the Minimum Design Criteria for the Fast -Track Permitting of Pump Stations and Force
Mains adopted June 1, 2000 and the watershed classification in accordance with Division guidance. Although certain
portions of this submittal package may have been developed by other professionals, 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 NC General Statutes 143-215.6A and 143-215.6B, any person who knowingly makes any false
statement, representation, or certification in any application 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.
2a. John C. Grey, PE
Professional Engineer Name
2b. The Wooten Company
Engineering Firm
2c. 350 N. Cox Street, Suite 26
Address
2d. Asheboro 2e. NC 2f. 27203
City State Zip
2g. (336) 626-5322 2h. (336) 626-5722 2i. jgrey@thewootencompany.com
Telephone Facsimile E-mail
e-r« �(�
Seal, Signature & Date
FTA 02/03 - Rev. 2 04/04
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John K. McNeill,111, Mayor
Richard Douglas, City Manager
William Fields, City Attorney
Mike Wood, Manager
Hoke County
PO Box 210
Raeford, NC 28376-0210
CITY OF RAEFORD
City Councilmen:
315 N. Main Street, Raeford, NC, 28376-2629
John Jordan
Telephone (910) 875-8161, Fax 875-8165
James B. McLeod
Edwin L. McNeill, Jr.
Robert Conoly
February 6, 2006
Re: Hoke Count 's Industrial Site & Sewer Allocation From City
Dear Mr. Wood:
The City of Raeford has adequate capacity at the Wastewater Treatment Facility to treat the
wastewater from the Pate Road industrial site as long as the County does not exceed the .5 mgd
limit including all other sources of wastewater from Hoke County. The wastewater shall also be in
compliance with our pretreatment standards.
Once an industry locates at the site, their process will have to be evaluated to determine the
wastewater parameters for that particular industry's pretreatment system.
Sincerely,
Richard Douglas
City Manager
cc: Mayor John K. McNeill, III
Linda Revels, Hoke Co. Clerk to Board
John K. McNeill, 111, Mayor
Richard Douglas, City Manager
William Fields, City Attorney
Mike Wood, Manager
Hoke County
PO Box 210
Raeford, NC 28376-0210
CITY OF RAEFORD
315 N. Main Street, Raeford, NC, 28376-2629
Telephone (910) 875-8161, Fax 875-8165
February 6, 2006
Re: Hoke County's Industrial Site & Sewer Allocation From City
Dear Mr. Wood:
t_v
Vv
City Councilmen:
John Jordan
James B. McLeod
Edwin L. McNeill, Jr.
Robert Conoly
The City of Raeford has adequate capacity at the Wastewater Treatment Facility to treat the
wastewater from the Pate Road industrial site as long as the County does not exceed the .5 mgd
limit including all other sources of wastewater from Hoke County. The wastewater shall also be in
compliance with our pretreatment standards.
Once an industry locates at the site, their process will have to be evaluated to determine the
wastewater parameters for that particular industry's pretreatment system.
Sincerely,
7
Richard Douglas
City Manager
cc: Mayor John K. McNeill, III
Linda Revels, Hoke Co. Clerk to Board
A. Design Criteria
Sewer system size determinations are normally determined by evaluating drainage basin
acreage and development factors. The above described sewer system sizing is based on
the estimated values contained in the Site Certification developed by The Wooten
Company and Hoke County. However, the size of sewer system actually installed will be
based on the water requirements of the industries that develop in the Park. The system as
described in the Site Certification is based on a total of 1 million gallons per day (mgd)
being pumped to the City of Raeford sewer system.
B. Pipe Design
The flow capacities of lines are based on the following North Carolina State Minimum
Standards:
Line Size
Min Grade
Capacity 1/2 full
(inches)
(percent)
(mgd)
15
0.15
0.7922
12
0.22
0.5349
10
0.28
0.3714
Some lines are not located adjacent to roads. These lines are called interceptor lines and
are located to provide service along the low areas of the project. The depth of these lines
will control the depth of the pumping stations. Other lines are located within road right-
of-way, and will provide sewer service to industry that locates away from the interceptor
lines. Using this approach sewer service should be available to any areas of the site that
could be developed. Additional lines will have to be designed if smaller industries
develop in the Park at locations not close to these designed lines. Also line sizes will
have to be reevaluated based on the actual industries that locate in the Park.
B. Manhole Design
Manholes will be 4-foot diameter standard manholes, and will be located approximately
400 feet apart with a maximum separation of 425 feet. The manholes will have a
standard fall across the invert of 0.08 feet, and invert in and invert out will be noted in the
profile. Manholes where the deflection angle is more than 80 degrees will have a fall
across the invert of 0.20 feet. Drop manholes with outside drops will be used where the
difference in invert elevations are 2.5 feet or more.
C. Crossings
Culvert crossings will be limited as much as possible. Generally, the wastewater line will
pass under the culvert with 12 inches clear.
Stream crossings should be made at an angle close to 90 degrees to the centerline of the
stream. The line will be designed to pass 1 foot below the bottom of the streams with 1
foot minimum cover, and ductile iron pipe (DIP) should be used at these crossings.
At water line crossings, the wastewater line will pass under the water line with at least 18
inches clear between them. If the sewer line is less than 18 inches below the water line or
the sewer line must be located above the water line, both the water line and the sewer line
will be DIP. Where water lines are planned, the sewer lines will be designed to provide
proper clearance.
All road crossings will be installed using a bore and jacking method. To bore and jack a
line first a steel casing pipe is installed in a bored hole. A carrier pipe (sewer line) is
installed within the casing pipe. The steel casing should be sized 4 inches larger than the
carrier pipe bell outside diameter (OD). The carrier pipe will be either DIP or Polyvinyl
Chloride (PVC). Railroad Crossings will be made by the bore and jacking method as
well. The following are the anticipated steel casing sizes for the listed carrier lines:
Carrier line Steel Casing
Size in. Size h
8" 16"
10" 18"
12" 20"
Power line crossings will be made at 60 to 120 degrees from the right-of-way. Where the
crossing is parallel to the railroad right-of-way, the angle of the crossing will be the same
as exists.
D. Limits of Ductile Iron Pipe (DIP)
DIP will be used at the following locations:
1. Creek crossings (creeks defined as blue line on the USGS topographical map).
2. Where less than 3 feet of cover over pipe.
3. Where the line is located closer than 100 feet to a water supply well.
4. Where the sewer line is less that 18 inches below a water line or must cross above
the water line.
If after the DIP is laid out, it reaches to within 100 feet of the manhole, DIP shall be
extended to the manhole. DIP will be shown in 20 feet lengths
E. Services
No service lines will be required for this project. Services will be installed as industries
locate in the Park.
F. Pumping Station Design
Two pumping stations will be required to provide sewer service to the Industrial Park.
These pumping stations were initially sized based on an assumed total flow in the Park of
1 mgd. If this were a residential area we could assume a flow based on a development
density and multiply it times a set flow per house. Because this is an Industrial Park, the
flows could vary greatly, and the only purpose for estimating the flow here is to provide a
reasonably sized design for the system. Estimating the flows based on a typical
residential design, the total flow from the Industrial Park would be as follows:
1,400 acres total - 210 acres (15%) not developable (wetlands, etc.) = 1,190 acres
1,190 acres x 1.5 houses per acre x 300 gpd/house = 535,500 gpd (average)
Since flows will occur at certain times of the day and not consistently throughout the day,
we multiply the average flow times a peaking factor. An average peaking factor is 2.5,
which will give a total peak flow from the Industrial Park of 930 gpm or 1.3 mgd.
PS 1 is the smaller station and serves only the portion of the Industrial park that fronts
Golf Course Road (SR 1432), approximately 300 acres. Using the same flow design
criteria as shown above, we come up with an average flow of 114,750 gpd or a peak
pumping station design flow of 200 gpm. This will provide a velocity of 2.3 fps in a 6-
inch force main. To comply with North Carolina DENR requirements the minimum
velocity for a force main is 2 fps, so the force main for PS 2 will be 6 inches.
PS 2 will collect wastewater from the whole site, including the flow from PS 1, and pump
it to the City of Raeford wastewater system. A design flow of 930 gpm will flow at 2.6
fps in a 12-inch force main. However, the flow of 930 gpm is an assumed build out flow.
The initial flows from the Park will be less and the velocity in the force main would drop
below the minimum 2 fps.
Because of the nature of this project, we recommend initially sizing the pumping station
and force main for approximately half of the anticipated flow. The minimum flow for the
8-inch force main is a reasonable maximum flow is 475 gpm. Therefore, Pumping
Station No. 2 will be initially designed for 475 gpm. Once that capacity is used up the
pumps would be replaced and the force main would need to be paralleled. If the
Industrial Park develops initially with a large wastewater producer, the station would
need to be redesigned to support that industry.