WQ0040120_Comments_20181107

PARKER & ASSOCIATES , INC .
ENGINEERS • SURVEYORS • PLANNERS
JACKSONVILLE , NORTH CAROLINA
[phone] I Fax[phone]
306 New Bridge Street] P.O. Box 976
Jacksonville, NC 28541-0976 REC'" -D/DENRIDWN
Firm License Number F-0108
VIA EMAIL AND MAIL NOV 14 2018
November 7, 2018 Water Resources
Ms. Vivien Zhong Permitting Section
PERCS Unit—DWR-NCDEQ
1617 Mail Service Center
Raleigh,NC 27699-1617 Re: Richlands Mini-Storage Addition
WQ0040120
Sewer Permit Application
Onslow County,NC
Dear Ms. Zhong,
This letter is in response to comments in your email dated September 7, 2018, and our recent
telephone conversations, concerning the above referenced project.
1) Buoyancy calculations are now provided. They are in the back of the specifications.
2) The Flow Tracking/Acceptance (FTSE)Form was submitted with the original package. It
was filled out by the utility company (ONWASA), and provides their analysis of the downstream
sewer capacity. The form shows that the downstream pump station has 0.525 MGD available
capacity and the Wastewater Treatment Plant has 0.817 MGD available capacity. This indicates
that they have adequate capacity to serve this project.
In addition,the proposed pump station will tie to an existing 6"force main that comes from the
Onslow County Airport. The existing airport pump station was designed for 185 GPM flow
through the existing 6"C900 PVC force main. Therefore, the existing force main will flow at
2.0±feet per second. If our pump station pumps at the same time as the airport pumps,then
there could be 185 +25 =210 GPM going through the 6" force main. This yields a velocity of
2.3 FPS,which is acceptable. In addition, if both pump stations pump at the same time, an
additional friction head of 1.4 feet will be added to the existing 6"force main and pump station.
Per information provided by ONWASA, of the actual start-up of the existing pump station,the
airport pumps actually pumped 285 GPM instead of the designed 185 GPM. If the additional
friction head of 1.4 feet is added,the airport pumps would still pump 270±GPM, which is still
way more than the design of 185 GPM.
All of the above shows that the existing airport SPS and existing 6"force main has adequate
capacity to accept the additional flow from the proposed pump station.
Civil Engineering I Stormwater and Environmental Consulting
Feasibility and Development Planning I Land Surveying and Mapping I Subdivision and Construction Plans

Page Two of Two
November 7, 2018
Richlands Mini-Storage Addition
Sewer Permit Application
3) The pump station detail on Sheet 3 of 3 has been revised to be a simplex pump station and to
include: a screened wetwell vent; an audible and visual high water alarm; an emergency contact
sticker/placard.
4) Per my discussions with you and Christyn Fertenbaugh, of your office, a simplex pump
station with low flow does not require telemetry or a stand by power source. We have now
revised the plans to propose a simplex pump station.
5) Per your request, we have revised our specifications to add force main technical
specifications.
Please find enclosed one copy of the revised Specifications which include the pump and
buoyancy calculations, and revised Sheet 3 of 3.
If you have any questions or need any additional information,please let me know.
Sincerely,
PARKE &ASS+C T S,INC.
,
Timothy M S e art,P. .
Enclosures
ec: Mr. Charles Wells(w/enclosures)
CF(P)LAM
TMS/djh
Secretary.C1.2018 TMS.Letter Zhong.NCDEQ RichlandsMmiStor.SewerPermitApp.110618

TECHNICAL SPECIFICATIONS
FOR
SEWER EXTENSIONS .
TO SERVE -
RICHLANDS MINI-STORAGE ADDITION
ONSLOW COUNTY,NORTH CAROLINA
OWNER:
Richlands Mini-Storage, Inc.
Burgaw,North Carolina
June 2018
Revised November 2018
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PROJECT INFORMATION SHEET .
OWNER:
Richlands Mini-Storage,Inc.
1640 NC Hwy 53West ,
Burgaw,NC 28425' ' - .
Contact Person: Mr. Charles Wells
[phone]. ' , '
ENGINEER:
Parker&Associates, Inc. '' .
P. O.Box 976
Jacksonville,North Carolina 28541-0976
Contact Person: Mr.-Timothy M. Stewart,P.E.
[phone]
UTILITY:
Onslow Water&Sewer Authority
P.O. Box 1415 , , . ,
Jacksonville,NC 28540
Contact Person: Mr.David Mohr,P.E., Engineering Director
[phone]

TABLE OF CONTENTS
Item - Pages
Project Information Sheet ' 1
Construction Staking Quality Assurance/Jobsite Safety 1
Did You Know?—Natural Gas Information 1
Force Mains—Section 33 34 001 —12
Technical Specification—Sewage Pumping Station 1 — 11
Pump Station Calculations 1 —5
Pump Station Buoyancy Calculations 2
Secretary.C2.2018.Specs.RichlandsMiniStor.GrinderPumpStation TechSpecsSewerExt,6,11,18 Rev 110618

CONSTRUCTION STAKING QUALITY ASSURANCE
CONTRACTOR SHALL INSURE THAT HE AND ALL HIS WORKERS (CONTRACTORS,
SUBCONTRACTORS AND OTHER SITE PERSONNEL) DO NOT DAMAGE
CONSTRUCTION STAKES OR OTHER MEASURES USED IN LAYING OUT THE
PROJECT WHETHER BY PARKER&ASSOCIATES OR ANOTHER ENTITY INCLUDING
THOSE UNDER THE EMPLOY OF THE CONTRACTOR. CONTRACTOR SHALL CAUSE
HIS WORKERS TO OBSERVE AND VERIFY TO THE FULLEST EXTENT PRACTICABLE
THAT STAKES, OTHER MEASURES AND GRADES ARE, OR APPEAR TO BE,
ACCURATE AND CORRECT,AND IMMEDIATELY,BUT PRIOR TO ANY ASSOCIATED
WORK, NOTIFY THE STAKING ENTITY OF ANY POTENTIAL CONFLICT, ERROR OR
QUESTION REGARDING THE WORK. PARKER & ASSOCIATES SHALL NOT BE
RESPONSIBLE IF ALL OF THE ABOVE MEASURES ARE NOT STRICTLY ADHERED
TO. PARKER & ASSOCIATES SHALL NOT BE RESPONSIBLE WHERE, DUE TO
DAMAGE, ITS STAKING CANNOT BE VERIFIED. FOR CRITICAL OR COSTLY
COMPONENTS OF THE WORK, WHERE THE CONTRACTOR BELIEVES THAT
STAKING MAY NOT BE PRESERVED, THE CONTRACTOR SHALL REQUEST THE
STAKING ENTITY TO PLACE STAKING IN AN AREA WHERE ITS PRESERVATION -
CAN BE INSURED.
JOBSITE SAFETY
NEITHER THE PROFESSIONAL ACTIVITIES OF THE DESIGN PROFESSIONAL, NOR
THE PRESENCE OF THE DESIGN PROFESSIONAL OR THE DESIGN
PROFESSIONAL'S EMPLOYEES AND SUBCONSULTANTS AT A CONSTRUCTION
SITE, SHALL RELIEVE THE CONTRACTOR AND ANY OTHER ENTITY OF THEIR
OBLIGATIONS,DUTIES,AND RESPONSIBILITIES INCLUDING,BUT NOT LIMITED TO,
CONSTRUCTION MEANS, METHODS, SEQUENCES, TECHNIQUES, OR
PROCEDURES NECESSARY FOR PERFORMING, SUPERINTENDING, OR
COORDINATING ALL PORTIONS OF THE WORK OF CONSTRUCTION IN
ACCORDANCE WITH THE CONTRACT DOCUMENTS AND ANY HEALTH OR SAFETY
PRECAUTIONS REQUIRED BY ANY REGULATORY AGENCIES. THE DESIGN
PROFESSIONAL AND DESIGN PROFESSIONAL'S PERSONNEL HAVE NO
AUTHORITY TO EXERCISE ANY CONTROL OVER ANY CONSTRUCTION •
CONTRACTOR OR OTHER ENTITY OR THEIR EMPLOYEES IN CONNECTION WITH
THEIR WORK OR ANY HEALTH OR SAFETY PRECAUTIONS. THE CONTRACTOR IS
SOLELY RESPONSIBLE FOR JOBSITE SAFETY. THE DESIGN PROFESSIONAL AND
THE DESIGN PROFESSIONAL'S CONSULTANTS SHALL BE INDEMNIFIED AND
SHALL BE MADE ADDITIONAL INSUREDS UNDER THE CONTRACTOR'S GENERAL
LIABILITY INSURANCE POLICY. .
C1.STANDARD.ConstStaking.JobsiteSafety.5.31.07
i,P,

DID YOU KNOW?
'There is an underground natural gas If you suspect a leak,immediately leave the area on ; WHAT TO DO
pipeline near you foot and call appropriate emergency contacts as (if you suspect a leak or imminent danger)
Piedmont Natural Gas is an energy services outlined in this brochure Monition has NOT occurred...
company primarily engaged in the distribution of 'How to recognize a leak ( *Turn off machinery or equipment in the immediate area
t natural gas to over one million residential,commercial Use your senses of sight and smell to help recognize *Leave on foot and clear other people away from the R
and industrial utility customers in North Carolina, the situation. area
,l
South Carolina and Tennessee. Natural Gas pipeline *A"natural gas smell"or rotten-egg-like smell *PIEDMONT NATURAL GAS 24-HR EMERGENCY
markers containing contact phone and emergency *Dust,water,bubbles,or vegetation blowing PHONE:[phone]
information indicate the presence of underground - into the air or around a pipeline *if you feel danger is posing an imminent threat,call 911
utilities but may not be posted in many areas *Discolored or dead vegetation near the pipeline if ignition HAS occurred...
throughout the system.For more pipeline location *A shrill blowing or hissing sound *Safely remove yourself and others from the area of
information,call your state One-Call center or see *Bubbling in a wet area,marshland,river or creek the burning natural gas
the National Pipeline Mapping System online at *A dry spot in a moist field *CONTACT 911 EMERGENCY RESPONDERS
http:!/www.npms.phmsa.dot.gov *Fire apparently coming from the ground or
Pipelines are the safest method of burning above the ground WHAT NOT TO DO:
transportation for natural gas Impact of land use and construction *Do NOT light a cigarette or smoke in the area
According to the National Transportation Safety practices on safety *Do NOT start an engine or drive near the area of the
Board,pipelines are the safest mode of transportation. *Always survey the area for evidence of pipeline leak
Piedmont Natural Gas,with years of safe and right-of-way markers prior to any excavation or *Do NOT cause any friction that could cause a spark
continuous service,is committed to meeting or construction operations. *Do NOT attempt to operate valves on the pipeline
' exceeding all local,State,and Federal natural gas pipeline *Always contact the state One-Call service in *Do NOT attempt to extinguish the burning natural gas
( safety regulations. - advance of beginning any digging,drilling,ditching or ,
Most pipeline accidents occur when constructing work no matter how small the project 'Responsibilities of the Pipeline Operator )
Individuals or companies are not aware *Wait for appropriate personnel to mark the specific Pipeline operations and maintenance activities are
of the location of buried utilities location of the pipeline and then proceed with care. required to follow industry-wide policies and procedures
Brightly-colored natural gas pipeline markers indicate buried *Check with your local public officials about any and established best practices. Piedmont Natural Gas
utilities are nearby,but they do not always Indicate future land use plans in the area of your project. participates in the One-Call system and rigidly performs a
the exact location and depth of the pipeline. Markers 'Accidents , broad range of safety precautions including aerial and
are generally located at road,railway and river If damage occurs to our pipeline,it is important that we ground leak patrols,natural gas sampling,preventative
crossings and along fence lines and property boundaries, are informed immediately for inspection,evaluation,and maintenance,the installation of pipeline markers,and the
l'
but pipelines do not always run in a straight line and markers repairs. Earthquakes,wash-outs,lightening,drilling planning of emergency response procedures.
may not be present in certain areas. It is very important or blasting near the right-of-way may cause unseen In accordance with federal regulations some areas near
to CALL 811 BEFORE YOU DIG. 811 is a federally- damage to a pipeline. Even a minor dent can cause pipelines are designated as High Consequence Areas.
mandated number designated by the FCC to consolidate deterioration of the protective coating and present For these areas,supplemental hazard assessment and i
all local"Call Before You Dig"numbers and help save a potential hazard in the future. prevention programs,known as Integrity Management
lives by minimizing damages to underground utilities. 'Protect Yourself I Programs,have been developed.For more information S
SAFETY TAKES TEAMWORK An informed public is an essential component of safe natural about these plans contact the Customer Information
Identify Potential Hazards gas pipeline operations. In addition to the safe practices Center at 1-800-752-7504.
Natural gas is odorless,colorless,and lighter than outlined below,please obtain more detailed information
air. If released,natural gas will rise and diffuse with from the Piedmont Natural Gas web site:
air rapidly. The"natural gas smell"(rotten-egg-like) www.piedmontng.com as well as other related
most people associate with natural gas is an odorant resources listed in this brochure.
added by local gas utilities to assist in leak detection. cllForms/Parker/Did You_Know.(8.27.10) 1

SECTION 33 34 00
FORCE MAINS
PART I GENERAL '
1.1 SUMMARY
A. Section Includes:
1. Pipe,fittings,accessories, and bedding for force mains. Force mains shall be of ductile iron
pipe and fittings, PVC plastic pipe and ductile iron fittings, or Polyethylene pipe. Force mains
installed by directional drilling shall be of polyethylene pipe and ductile iron fittings.
2. Valves and appurtenances.
3. Thrust restraint. ,
4. Pressure and leakage testing." "
5. Pipe Markers. .
B. Related Sections:
1. Section.03 11 13—Cast-in-place Concrete
2. Section —Trenching 31 23 16.13
3. Section 33 0519—Pressure'Piping Joint Restraint
4. Section 33 05 23—Trenchless Utility Installation
5. Section —Utility Horizontal Directional Drilling33 05 23.13
6. Section —Utility Manholes and Structures33 0513
7. Section —Submersible Pumps43 25 00 ,
1.2 DEFINITIONS S -
A. Owner: Onslow Water and Sewer Authority-ONWASA
.1.3 SUBMITTALS • ' "
A. Project Record Documents: Record actual locations of piping mains, valves, connections, thrust
• restraints,and invert elevations. S
1.4 QUALITY ASSURANCE
A. All pipes,fittings,valves,and appurtenances shailbe appropriately marked for identification purposes.
The materials and methods of manufacture,and completed pipes,fittings,valves,and appurtenances
shall be subject to inspection and rejection at all times. ONWASA and ENGINEER have the right to
make inspections.
B. Perform Work in accordance with ONWASA Standards and Sections 1'500, 1510, and 1515 of NCDOT
Standard Specifications except as modified here-in.
C. PVC pipe that has faded color due to extended exposure to sun and weather shall not be acceptable
for use. -
1.5 CLOSEOUT SUBMITTALS "
A. Project Record Documents: Record actual locations of piping mains,valves,thrust restraints,.and
invert elevations. -
1.6 DELIVERY, STORAGE,AND HANDLING : . "
" A. Deliver and store valves in shipping containers with manufacturer's name and pressure rating labeling
in place. , •
B. Block individual and stockpiled pipe lengths to prevent moving. ,
•
ONWASA FORCE MAINS
STANDARD SPECIFICATION FOR DEVELOPERS33 40 00.1 .
REVISION 3,May 19,2016' y ' S . "

C. Do not place pipe or pipe materials on private property or in areas obstructing pedestrian or vehicle
, traffic. -
D. Store PVC pipe out of sunlight or under black polyethylene plastic or other suitable opaque material.
Store rubber gasket rinds in shipping cartons out of sunlight and away from oil and grease until ready
for use. ,
'E: At no time shall other pipes or material be placed in the pipes.
F. Repair damage to pipe exterior and interior surfaces; pipe so damaged subject to rejection.
PART 2 PRODUCTS ' '
•
2.1 FORCE MAIN PIPING
A. Ductile from Pipe(DIP): AWWA C151: Bituminous outside coating: AWWA C151.Force mains 18-
inches in diameter and greater shall be.ductile iron.
1. Pressure Class: 350 •
2. Fittings: Ductile Iron,AWWA C110.- Compact Fittings,Ductile Iron;AWWA C153.
a. Coating: Bituminous Coating,AWWA C110.
3. Joints: .
a. Mechanical Joints: AWWA C11,1. ,
b. Push-On Joints: AWWA C111. - .
c. ,Flanged Joints: AWWA C115.(Above,ground installation only)
d. Boltless Restrained Joints: Boltless,push-on type,joint restraint independent of joint seal.
Conform to pipe manufacturers specifications. Required for carrier pipe installed through
steel casing. ,
e. Restrained Joints: Per Section 33 05 19–Pressure Piping Joint Restraint.
4. Ductile Iron Pipe and Fitting Lining: Type shall-be required as follows; The epoxy lining as
described below shall be required for'all mechanical joint fittings, pump station and vault piping,
piping at high points in the force main(5 full sections centered at each air release/vacuum valve
if force main is ductile iron upstream and downstream of the valve, 1 full section if force main is
PVC upstream and downstream of the valve ) and piping within 50 LF of a tie-in to a structure
(i.e. manhole, pump station wet well, etc'.). Cement mortar lining as described below shall be
acceptable for all other locations unless otherwise directed by the ONWASA.
a. Cement Mortar Lining per AWWA C104,or •
b. Epoxy Lining(1.or 2.as specified below):
1. Amine-cured novalac epoxy containing at least 20%by volume of ceramic quartz
pigment(i.e.Protecto 401).-Any request for substitution must be accompanied by a
successful history of lining pipe and fittings for sewer service,a test report verifying the
following properties, and a certification of the test results.
1) Permeability rating of 0.00'when tested according to Method A of ASTM E-96-
, 66, Procedure A with a test duration of 30 days.
2) The following test must be run on coupons from factory-lined ductile-iron pipe:
,
• ,"i. ASTM B-117 Salt, Spray (scribed panel). - Results to equal 0.0
• undercutting after two years..
ii. ' ASTM G-95 Cathodic Disbondment 1.5 volts @ 77°F. Results to equal no
more than 0.5 mm undercutting after 30 days.
., . , , - - - 'iii. Immersion testing rated using ASTM D-714-87.
a. 20%.Sulfuric acid—No effect after two years.
"b. 140°F 25%Sodium Hydroxide—No effect after two years.
ONWASA FORCE MAINS
STANDARD SPECIFICATION FOR DEVELOPERS 33 40 00-2
REVISION 3,May 19,2016

" ' ' c. 160°F Distilled Water—No effect after two years. '
d. 120°F Tap Water (scribed panel)-0.0 undercutting after two
years with no effect.
• - iv. ASTM G-22 90 Standard practice for determining resistance of Synthetic
Polymeric materials to bacteria.The test should determine the resistance
to growth of Acidithiobacillus Bacteria and should be conducted at 30
degrees centigrade for a period of 7 days on a minimum of 4 panels.The
'growth must be limited only to trace amounts of bacteria.
v. An abrasion resistance of no more than 3 mils (.075 mm) loss after one
million cycles using European Standard. EN 598: 1994 Section 7.8
Abrasion Resistance ,
, 3)Applicator:The lining shall be applied by.a certified,firm with a successful
history of applying epoxy linings to the interior of ductile Iron pipe and fittings.
2. Modified polyamine ceramic epoxy (I.e. Tnemec Series 431 Perma-Shield PL). Any
request for substitution must be accompanied by a successful history of lining pipe and
"fittings for sewer service, a test report verifying.the following properties, and a
certification of the product meeting the performance criteria.
1) Properties:
i. Solids by Volume: 100 percent
ii: Hazardous Air Pollutants: Zero
iii: Ceramic Hollow Microspheres:20 percent by'volume(no silica fume,fly
ash,or alumina dust) '
• Iv. Pigment Volume Concentration: Less than 22 percent
v. Coal-Tar Content: Zero
vi. Dry Film Thickness: ' -
a. 40 mils minimum,
•
b. 60 mils maximum
, . 2) Performance Criteria: •
„ . i. Abrasion:(ASTM D4060-07,CS-17 wheel, 1,000 grams)–76 mg loss.
(BS EN 598`2007+A1:2009,50,000 cycles)–0.6 mils loss
ii. Adhesion:(ASTM D 4541)–Not less than 1,860 psi.
Iii., Severe Wastewater Analysis Test: (150°F,500 ppm H2S,4000 ppm
NaCI, 10% H2SO4, EIS Permeation Analysis)–Initial impedance of 11.2
(log-z). No blistering,cracking,checking or loss of adhesion. Reduction
in electrical impedance of 0,5 after 28 days exposure.
iv. Cathodic Disbondment: ASTM G 8(1.55V)Classification Group A. No
more than 0.000 inch(0.00 mm)disbonded equivalent circle diameter.
v. Chemical Resistance: (ASTM C 868-02,25 percent sulfuric acid, 100
degrees F, 100 days- (NACE TM0174-2002,6 months continuous
immersion,50 percent sulfuric acid, 13 percent sodium hypochlorite,5
percent sodium hydroxide, 75 degrees F–No effect.
-vi. Dielectric Strength: (ASTM D 149-09)–greater than 600 volts per mil
vii. Hardness:(ASTM D 2240):'Shore D hardness of 79.(ASTM D 3363).
viii. Immersion: 140°F(60°C)De-ionized Water Immersion.No blistering,
•cracking or delamination of film after 5,000 hours continuous Immersion.
ix. Impact: (ASTM:D 2794-04)–NOV visible cracking or delamination after
160 inch-pounds(18.0 J)direct impact.
x., Salt Spray(ASTM B 117-09):No blistering,cracking,rusting or
•' - delamination of film after 10,000 hrs.
xi: • Water Absorption,(ASTM C413-01(2006)-0.0 percent water absorption
xii. • Water Vapor Transmission(ASTM D 1653-03(2008)Method B,Wet Cup,
Condition C)–1.25 g/m2 per 24 h water vapor transmission and 0.09
" perms water vapor permeance
ONWASA • FORCE MAINS - •
STANDARD SPECIFICATION FOR DEVELOPERS 33'40 00-3
REVISION 3,May 19,2016 '

' f -, 3: Applicator: The lining shall be applied by a certified firm with a successful history of
applying ceramic epoxy linings to the interior of ductile iron pipe and fittings.
B. Polyvinyl Chloride Pipe(PVC):AWWA C900(4-inch through 12-inch),AWWA C905(14-inch through
16-inch), and SDR-21 (less than 4-Inch)
1. Pipe Class: PVC C900 and C905
a. Dimension Ratio:DR18
b. Pressure Rating:235 psi minimum
c. Color: Green .
d. Fittings: Ductile Iron,AWWA C110. _Compact Fittings, Ductile Iron,AWWA C153
e. Joints: ' -
1. ASTM D3139 PVC with ASTM F477 flexible elastomeric seals. Solvent-cement couplings
are not permitted.
2: Ductile Iron,Mechanical Joint,AWWA C110
2. Pipe Class: SDR-21, Iron Pipe Size(IPS),.ASTM D2241,ASTM D1784
a. Pressure Rating:200 psi minimums •
b. Fittings: .
1. Ductile Iron,AWWA C110. Compact Fittings, Ductile Iron,AWWA C153
2. PVC fittings conforming to pipe requirements pressure rated to exceed pipe class.PVC
fittings may only be installed as indicated on the Drawings. '
c. Joints: .
' ' 1.'ASTM D3139 PVC with ASTM F477 flexible elastomeric seals. Solvent-cement couplings
are not permitted. '
2. Ductile Iron, Mechanical Joint,AWWA C110
C. Polyethylene Pipe: See Section 33 05 24—Utility Horizontal Directional Drilling
•
Coordinate following with detail. May require more than one option for connection to main depending upon types of pipe. Modify as required
for type of operation and size required. Be aware of height of unit so it fits within any structure provided.
2.2 '' AIR RELEASE/VACUUM VALVES ' -
A. Manufacturer: Crispin-Multiplex Manufacturing Co.'(S Series),Val-Matic(Series 300)
B. Valve: 2 inch inlet and outlet;150 psi operating pressure;cast iron body and top;stainless steel
internal linkage and float. •
C. Appurtenances: Brass backflush attachments.• •
D. Connection: Screw.type;tapping saddle and,strap assembly.
2.3 PLUG VALVES , -
A. ,Shall be eccentric of the non-lubricated type with resilient faced plugs. Valve bodies shall be ASTM •
A126 Class B'cast ironaccording to AWWA C504. Valves shall include the following features:
1. ,Plugs shall be resilient faced cast,iron,ASTM A126 Class B. The resilient covering shall be
'neoprene or hycar and;suitable for use with sewage. ..
' 2. Sleeve metal bearings which are sintered,oil impregnated, and permanently lubricated stainless
steel conforming to Type 316,ASTM A743; Grade CF-8M or AISI Type 317 L shall be used.
Non-metallic bearings are not acceptable.
3. Valve shaft seals shall conform to AWWA C504 and AWWA C507 and shall utilize a multiple
v-ring that is externally adjustable and re-packable under pressure.
4. Valve actuators shall be of the nut-operated.type. , .
5. Valve shall be suitable for use in a buried condition.
6. Valve shall provide a minimum Of 100%of pipe area when fully open.
ONWASA - FORCE MAINS
STANDARD SPECIFICATION FOR DEVELOPERS 33 4'0'00-4
REVISION 3,May 19,2016

B. Equip valves 6,inches and larger with gear actuators with'gearing enclosed in semi-steel housing,
seals on all shafts, and actuator shaft supported on permanently lubricated bronze bearings.
2.4. RESILIENT WEDGE GATE VALVES , , - ,
•
A. Manufacturers: .
1. M&H Company.
2. Mueller Company. _ .
3. American Flow Control ' "'
4. Clow
B. Resilient Wedge Gate Valves: AWWA C509 or C515; iron body,bronze or ductile iron.
1. Elastomeric Polydisulfide(EPDM)encapsulated wedge ' .
2. Stem: Non-rising bronze stem. - "
3. Operating Nut: 2-inch Square;open counterclockwise unless otherwise indicated.
4. Ends: Mechanical joint end connections.
5. Coating: AWWA C550; interior/exterior. _ . ' . "
6. Maximum Working Pressure:250 psig
2.5 VALVE BOXES ,
A. Valve boxes shall be of roadway extension type, of proper length and base size with suitable
detachable cover, coated Inside and out with 'a good asphaltum paint, domestically casted. Boxes
shall be Tyler Union 6850 Series, Bingham & Taylor 15B2QW, or East Jordan Iron Works 8550 series
two-piece valve box,screw type. The cast iron lid shall be marked`SEWER".
2.6 UNDERGROUND PIPE MARKERS
A. Locator Tape: Brightly colored blue tape continuously printed with "SEWER FORCE MAIN" in large
letters, minimum 6-inch wide by 4 mils thick manufactured for direct burial service shall be installed
' and buried 1;5 to 2 feet from the top of the sewer line. ` , .
B. Tracer wire: 10-Gauge insulated wire, green In color, shall be installed along the top of the water line
to aid in locating the pipe for maintenance purposes. The wire shall be continuous and uninterrupted,
and brought to the surface at as specified In this Section. •
2.7 ABOVE-GROUND PIPE MARKERS . , ,
A. The standard above-ground utility markers_shall be Rhino Tri-View Markers, Model No.TVF66GB.
Above-ground utility markers designed to provide access to tracer wire shall be Rhino Tri-View
markers, Model No.TVTI66GW2. Decals as shown in ONWASA's Standard Detail shall be placed on
all three sides.Above-ground pipe markers are not required inside residential developments.'
PART 3 Concrete monument markers 6"X 6"X 36" reinforced with rebar.-with bronze utility markers stamped
"WARNING BURRIED SEWER FORCE MAIN, CALL 811 BEFORE YOU DIG" drilled and epoxied into
the top of the monument per,Standard,Detail .Concrete monument markers shall be installed
to a depth of'18" immediately above the sewer force main at the entry and exit site of all directional drill
locations where sewer force'mains'cross any body of water or wetland area. When installation takes
place after the work has been completed,.the monuments shall be installed'only after confirming the
location of the,sewer`force main below. ' -
A. ,
3.2 GROUT .
A. Per Section 33 0514—Utility Manholes end Structures, -
ONWASA FORCE MAINS ,
STANDARD SPECIFICATION FOR DEVELOPERS 33 40 00-5•
REVISION 3,May 19,2016 - ,

3.3 . CONCRETE FOR THRUST RESTRAINT, ENCASEMENT AND CRADLES
A. Concrete: Class B Concrete conforming to Section 1000 of the NCDOT Standard Specifications.
• 1. Compressive strength of 2,500 psi at 28 days. ,
2. Water cement ratio of 0.488 with rounded aggregate and 0.567 with angular aggregate.
3. Maximum slump of 2.5 inch for vibrated concrete and 4 inch for non-vibrated concrete.
4. •Minimum cement content of 508 pounds per cubic yard for vibrated and 545 pounds per cubic
• yard for non-vibrated concrete. - •
3.4 BEDDING AND COVER MATERIALS
A. . Backfill around Pipe and Above Pipe: As specified in Section 31 23 17-Trenching.
B. Reference SS SED"Sewer Force,Main Embedment Details"in Details.
3.5 ACCESSORIES .
A. Steel rods,bolt,lugs and brackets: ASTM A36 or ASTM A307 carbon steel.
B. Polyethylene Jackets: AWWA C105, polyethylene jacket. Single layer, lapped over pipe joint, and
secured with 10,-mil polyethylene tape. ..
PART 4 EXECUTION -
4.1 GENERAL: Entire Project site shall be In strict conformance to OSHA Regulations.
4.2 PREPARATION • - •
A. Prior to Start of Construction: •
t
1. Materials will be checked at the site of construction to verify conformance with approved
• materials.Any materials not In accordance with ONWASA Standards or approved by the
TechnicalOperations Supervisor,or his designee, at the job site will not be assumed for use.
CONTRACTOR will be.directed to remove these materials from the area before work can
proceed.CONTRACTOR may be directed to expose any work suspected of containing Inferior
materials. Failure, by the Inspector,to notice faulty materials or work does not relieve the
. . CONTRACTOR of his responsibility to provide a completed final product that meets the
requirements of the plans and specifications.Any inferior materials discovered will be replaced
without charge for rework to the OWNER.
2. ONWASA requires a minimum of forty eight(48)hours'notice before construction is to begin so
that ONWASA can schedule construction inspection for the work. Should the prosecution of the
work for any reason be temporarily discontinued,the CONTRACTOR shall notify ONWASA at
least twenty-four(24)hours in advance of resuming operations. ,
•B. Surveys, Lines and Grades: •
•
1. The CONTRACTOR shall establish a Project survey control network,with both horizontal(NAD
.83 datum or latest correction)and vertical(NAVD 88 datum or latest correction)controls, and
•
develop andmake any detailed surveys he deems necessary to construct the project in
• - accordance with the contract requirements.The CONTRACTOR shall carefully preserve all
reference points or existing survey markers and in the case of willful or careless destruction thereof,
, ., -, the CONTRACTOR shall be charged with the resulting expense,and shall be responsiblefor any
mistakes that may be caused by their unnecessary loss or disturbance. , . . , ,
C. Traffic Flow and Safety: ,
1. The CONTRACTOR shall maintain traffic flow and control at all times. CONTRACTOR shall
• comply with all MUTCD requirements and ail requirements,suggestions and/or directions of the
local Police Department,North Carolina Department of Transportation,and maintain OSHA
Compliance concerning traffic control and safety.Ali necessary precautions shall be taken to
ONWASA • • FORCE MAINS
STANDARD SPECIFICATION FOR DEVELOPERS 33 40 00.6
REVISION 3,May 19,2016

affect the full safety of the_public as well as the workmen on the job. In any section of the work
for which ONWASA must obtain an encroachment from the N.C.Department of Transportation
for cutting a paved street,or Working'in the DOT right-:of-way,the CONTRACTOR shall follow
the requirements as set out in the approved DOT Encroachment Agreement. The approved
- traffic control plan shall set forth the method and manner by which the CONTRACTOR shall
provide for the convenience and safety of the traveling public. However,if during construction, it
is determined by ONWASA,Police Department,DOT or the CONTRACTOR that additional
measure is needed;the CONTRACTOR shall immediately cease operations and Implement
whatever measures are required for the safety of the public. Work shall not resume until the
measures are fully implemented. '
2. All encroachment bonds required by the Department of Transportation will be secured by the
CONTRACTOR at his own expense.
3. No extra payment will be allowed for seouring'the required bond or for delays'associated with
the implementation of a traffic control plan. The costs of the bond and implementation of traffic
control measures shall be Included in the bid price for each item in the proposal
D. Sewer Service Cut-Off:
1.' When there are CITY OF JACKSONVILLE and ONWASA sewer fines within the limits of a
project.The following procedure applies to both the CITY OF JACKSONVILLE and ONWASA.
2. The CITY OF JACKSONVILLE/ONWASA requires adherence to the following procedures prior
to shutting'off sewer service on any existing CITY OF JACKSONVILLE/ONWASA lines: '
a. The CONTRACTOR must receive approval for shut-off from the CITY OF JACKSONVILLE
Public Utilities Director/ONWASA Distribution/Collections Superintendent.Generally,shut-
offs must occur from 9 a.m.to 11 a.m.and 2 p.m.to 4 p.m.on weekdays.
b. After receiving approval, CONTRACTOR shall notify affected residents twenty-four(24)
hours In advance of beginning operation.
c. All valves to be closed or opened are to be operated by the CITY OF JACKSONVILLE
Public Utilities Department/ONWASA
3, ' If any sewer mains are damaged and service interrupted,,the utility OWNER(CITY OF
• JACKSONVILLE or ONWASA)shall immediately be contacted and CONTRACTOR shall
• conduct repairs'In accordance with the utility OWNER'S specifications and requirements, in
order to restore water to the customers.'
4. NO ONWASA valves are to be operated without prior approval of the ONWASA
• - Distribution/Collections Superintendent(910.937.7560).Except in emergency situations,the
contractor shall request approval in writing(e-mail is preferable)no less than 48-hours prior to
event,stating reason,length of outage,and number and location of customers affected.
5. Verify existing conditions before starting work.' ' '
'6.• Verify existing sewer connection size,location,and inverts are as indicated on Drawings.
4.3 EXCAVATION - -• ' ' 'A. Excavate pipe trench in accordance with Section 31 2317- Trenching for Work of this Section. Hand
„ trim excavation for accurate placement of pipe to elevations indicated on Drawings.
B. Dewater excavations to maintain dry conditions and preserve final grades at bottom of excavation.The
Contractor is responsible for utilizing dewatering systems in accordance with good standard practice.
The dewatering'systems must be efficient enough'to lower the water level In'advance of the
excavation and to maintain it continuously to keep'the trench 'bottom ,and sides firm and dry.
Groundwater shall not be allowed to rise around the pipe until after the trench'Is backfilled. Disposal of
groundwater shall be disposed of in a suitable manner so as to not cause damage to adjacent
property or facilities,or be a threat to public health. Do not lay pipe in wet-or frozen trench.
C. Provide sheeting and shoring as required.
D. Place bedding material at trench bottom, level fill materials in one continuous layer not exceeding 8-
inches in compacted depth;compact to 95 percent. '
ONWASA FORCE MAINS • '
STANDARD SPECIFICATION FOR DEVELOPERS 33 40 00-7 •
REVISION 3,May 19,2016

E. Place bedding material at trench bottom and shape for accurate placement and proper support of
pipe.
F. Carefully place and tamp bedding material so as not to damage or displace joints or pipe. Do not drop
material directly on pipe. _
G. Maintain optimum moisture content of bedding material to attain required compaction density.
4.4 INSTALLATION-PIPE AND,FITTINGS '
A. Sewer lines shall be installed within dedicated street right of ways or centered in a 20-foot(minimum)
dedicated public"utility"easement to ONWASA.
• B. Install ductile iron pipe and'fittings in accordance with AWWA C600 and manufacturer's instructions
unless stricter requirements are noted in this Section. '
C. Install PVC pipe in accordance with AWWA C605 and manufacturer's Instructions unless stricter
requirements are noted in this Section. ,
D. PVC pipe shall be deflected onto a radius no,smaller than 1.2 times.the minimum bending radius set
out in the PVC Pipe Handbook. Ductile iron joint deflections shall be no greater than 80 percent of the
maximum set out in the Ductile Iron Handbook. • ,
E. Each fitting and section of pipe shall be inspected for,defects prior to installation. , ,
F. Each fitting shall be secured by two forms of restraint Restraining glands and'concrete thrust blocking
are preferred. Wedge-action restraint glands (i.e'. MEGALUGS) are approved only for use on ductile
iron pipe. Full-circumferential pipe restraint glands (i.e. Grip Rings) may be used on PVC or ductile
iron pipe. All restraint glands shall be designed for use on the type of'pipe for which they are being
installed.Other forms of restraint such as threaded rod, bell restraint,harnesses,etc.may be,approved
by ONWASA on a case-by-case basis. '
G. Required Separation Between Pipe Systems:
1. Lateral Separation of Sewer and Water Mains.Water mains shall be laid at least 10-feet
'laterally from existing or proposed sewers,unless local conditions or barriers prevent a 10-foot
lateral separation--in which case
a. The water main is laid in a separate trench,with the elevation of the bottom of the water
main at least 18-inches above the top,of the,sewer;or
b. The water main is laid in the same trench as the sewer with the water main located at one
side on a bench'of undisturbed earth,and with the elevation of the bottom of the water
main at least 18-inches above the top of the sewer.
2. Crossing a Water Main over a Sewer.Whenever It is necessary for a water main to cross over a
sewer,the water main shall be laid at such an elevation that the bottom of the water main is at
least 18-Inches above the top of the sewer,unless local'conditions or barriers prevent an 18-
inch vertical separation --in which case both the water main and the sewer shall be constructed
of ferrous materials and with joints that are equivalent to water main standards fora distance of
10-feet on each side of the point of crossing.A section of water main pipe shall be centered at
, the point of crossing.- -
3. Crossing a Water Main under a Sewer.Whenever it'is necessary for a water main to cross
under a sewer, both the water main and the•sewer shall be constructed of ferrous materials and
with joints equivalent to water main standards for a'distance of 10-feet on each side of the point
- of crossing.A section of water main pipe shall be centered at the point of crossing.
4. In accordance with NCAC Title 15A Ch.18C Section 0.0906 and NCAC Title 15 Ch.2 M 0.0200,
. ONWASA interpretation of this ruling shall be as'follows for a new development;Whenever a
Sewer Main crosses above or below a water main and the minimum clearance will not be met,
both pipes shall be constructed of ferrous material for a distance of 10-feet on center in each
direction, however, any areas pre-existing shall be handled on a case by case basis.
ONWASA FORCE MAINS
STANDARD SPECIFICATION FOR DEVELOPERS _ , ' ' - •• 33 40 00-8 ,
REVISION 3,May 19,2016

5: Crossing a Water Main or Sewer'Maln under a Storm Sewer Main;When mains cross under a
storm sewer main with less than 24-inches separation, the main shall be constructed of ferrous
material or as shown on the plans.One joint of pipe shall be centered under the.storm drainage.
H. Install pipe in locations and at grades as specified, except as otherwise permitted by ONWASA. Pipe
shall be installed to Indicated elevation,to within•tolerance of/2-inch. • ,
I. The pipe and fittings shall be kept thoroughly clean of any water, earth, stones, or other debris until
work is completed and accepted by ONWASA.Open ends of the pipe-shall be capped or plugged with
a water-tight fitting during periods of work stoppage.
J. Cut pipe ends square, ream pipe and tube ends to full' pipe diameter, remove burrs. Use only
equipment specifically designed for pipe cutting. The use of ,chisels or hand saws will not be
permitted. Grind edges smooth with beveled end for,push-on connections. _
K. • ,Remoye scale and dirt on inside and outside before assembly.- ,
L. Flanged Joints: Not to be used in underground installations except within structures.
' M. Install in open cut,except where otherwise required or permitted by ONWASA.
1. Where installed by free boring,extend hole 5 feet each side of pavement,thread pipe into hole
from boring pit with leading end of first pipe covered to prevent damage and the entry of earth,
and fill space around pipe with grout.
2.- All piping that isdry-bored shall be ductile iron. ,
- 3. Where installed within steel encasement pipe, refer to Section 33 05 23- Trenchless Utility
Installation. . •
N. Install pipe with no high points unless shown on the Plans. If unforeseen field'conditions arise which
'necessitate'high'points, install air release valves as directed by ONWASA. , '
O. Install pipe to allow for expansion and contraction without stressing pipe-or joints. ,
P. Install access fittings to permit required testing.
Q. When necessary to cut,pipe at•fittings, valves or elsewhere, the remaining portions may be used to
minimize the number of scrap pieces when the Work is complete; however, scrap pieces less than 5-
feet in length shall not be used. ' , -
'
R. Install underground marking' tape continuously above pipe line 12 to 18 inches below the ground
surface and secure trace wire to the pipe with duct tape near every'bell and at the center of each pipe
joint. The wire shall be fastened securely to all fittings as directed by ONWASA. Splices in the tracer
wire shall'be connected by means of a waterproof'and corrosion-proof-connector designed for direct
bury applications. Standard wire nuts are not acceptable. The connection shall then be completely
wrapped in' electrical tape. There shall be no exposed'bare wire. The tracer'Wire shall be made
accessible through above-ground utility markers designed to provide access to tracer wire as specified
in this Section. In-residential developments,trace wire shall be made,accessible in valve boxes,vaults,
etc:- , ' _ ,
S. Install above-ground utility markers at horizontal bends, main-line valve boxes (not within 10 feet of a
fire hydrant assembly branch), ends of directional bores (concrete monument markers), bank edge of
all channels,crossed by directional bores (concrete monument markers), each side of a roadway
- crossing,and along the piping alignment. The maximum spacing for the above-ground utility markers
shall be 500 linear feet. In locations where there are multiple horizontal bends in close proximity, one
marker will be sufficient to,demonstrate the change in direction. Utility markers designed to provide
access to.tracer wire shall be installed at every third marker, or every 1000 feet of pipe, whichever
distance is less.Tracer wire accessible above-ground utility markers shall also be installed at ends of
directional bores. Establish elevations of buried piping with not less than 3-feet of cover. Measure
depth of cover from final surface grade to top of pipe barrel. .,
T. Backfill trench in accordance with Section.31 23 17—Trenching.
ONWASA FORCE MAINS ,
STANDARD SPECIFICATION FOR DEVELOPERS - 33 40 00-9
REVISION 3,May 19,2016 f

4.5 INSTALLATION—VALVES
A. Install valves in conjunction with pipe installation;set valves plumb.
B. Provide burled valves with valve boxes installed flush with finished grade.
C. Adjust valve boxes to final grade at'the time designated by ONWASA.
D. Install concrete support underneath valves as indicated in the Detail.
E. All valve boxes outside pavement shall have a concrete valve collar or a 2'x 2' x 4" area of concrete
poured around the valve boxes where valve boxes are too close to install whole valve pads. (No valve
pads are to be cut).
4.6 INSTALLATION—AIR RELEASE/VACUUM VALVES
A. Air release/vacuum valves shall be installed in minimum 5-foot inside diameter manholes in
accordance with Section 33 0514—Utility Manholes and Structures and ONWASA's Standard Details.'
Note that all force main air release/vacuum valve manholes shall be vented with a ductile iron vent
terminating in two 900 bends with a stainless steel insect screen installed on the end; The vent shall
be installed to a height 3'above the flood plain elevation. , '
4.7 INSTALLATION—CONCRETE THRUST RESTRAINT
A. Provide concrete thrust restraint for'valves, tees, behds, caps, plugs, and dead ends with concrete
thrust blocks as indicated on drawings. Thrust blocks should be located to resist resultant force and
so pipe and fittings will be accessible for repair '
B. Fittings shall be wrapped In polyethylene prior to pouring the concrete thrust blocking to protect the
fittings,•glands,.bolts,etc.from direct contact with the concrete.
C. The concrete for the thrust blocks shall be mixed outside the excavation in a clean container with
potable water. Mixing of concrete in the excavation using surface or ground water,or placement of dry,
unmixed bags of concrete behind fittings shall not be allowed.
D. Pour concrete thrust blocks against undisturbed earth. Do not encase fittings,glands, bolts, etc.
4.8 - CONNECTIONS TO EXISTING PIPING_AND STRUCTURES •
A. Connect new sewers to structures through stubs,wall castings,wall sleeves,etc.,provided for same,
pr make an opening at the proper elevation in the wall of the structure.Unless otherwise approved by
ONWASA, all openings into existing structures shall be core-drilled.Using pneumatic hammers,
chipping guns,sledge hammers,etc.,will not be permitted.
B. In opening of structure,unless otherwise approved by ONWASA, install flexible connector,with dual
stainless steel clamps meeting ASTM•C923 for all pipe diameters in opening,and seal opening with
non-shrink concrete grout. Make connections water-tight.
1. For polyethylene pipe, provide a water-tight seal around the pipe using grout or other material as
Instructed by the pipe manufacturer and approved'by ONWASA, and a coupling slipped over the
pipe end against the structure wall and fused in place for axial restraint.
C. An inside drop assembly,in accordance with ONWASA's Standard Detail,shall be provided for a force
main entering a manhole. , , , , ,
D. Where necessary, reshape the bottoms of existing structures to give a smooth flow in all directions.
E. Provide 48 hours'notice to ONWASA prior to making connections. ,
F. Plan Work to reduce number of shut-offs and to minimize length of shut-off:' '
G. Make connections at such times and using fittings as approved by OWNER and,ONWASA.
Connections to existing pipes shall be made by ductile iron mechanical joint sleeves with transition
gaskets as necessary, or stab fit,wide range gasketed sleeves(i.e.Hymax Coupling)suitable for
ONWASA - ' FORCE MAINS
STANDARD SPECIFICATION FOR DEVELOPERS 33 40 00-10 ,
REVISION 3,May 19,2016

•
pressure sewer service as determined by the sleeve manufacturer. Flexible couplings(e.g. Femco)
shall not be permitted on force mains.
4.9 INSTALLATION-POLYETHYLENE ENCASEMENT
A. Encase Ductile Iron piping in polyethylene where indicated,on Drawings to prevent contact with
surrounding backfill material.
B. Install in accordance with AWWA C105.
C. Terminate encasement 3 to 6 inches aboveground where pipe is exposed.- '
4.10 INSTALLATION-JOINT RESTRAINT.
A. Install joint restraint in accordance with Section 33 0519—Pressure Piping Joint Restraint.
4.11 BACKFILLING ,. _,
A. Backfill and compact around sides and to top of pipe in accordance with'Section 3123 17-Trenching.
B. Maintain optimum moisture content of,material to attain required compaction density.- ,
4.12 FIELD QUALITY CONTROL , , , ,
•
A. The.Contractor shall-conduct preliminary, pressure, leakage, and tracer wire testing prior to the
• witnessed tests to verify,the tests will pass on the first attempt. if the Contractor schedules a required
test in advance and the test is not ready to begin at the scheduled time,the Contractor will be required
to reimburse ONWASA for all costs to ONWASA associated with the delay.
B. Check valve boxes after installation to ensure the valves are installed plumb and.centered over the
operating nut,and remove stones, dirt,debris, and backfill material. '
•
C. Compaction Testing: Perform soil compaction tests in accordance with Section 31 2317- Trenching.
•
D. Trace Wire Testing:Contractor shall perform a continuity test'on all trace'wire'in the presence of an
ONWASA representative. If the trace wire is found to be not continuous after testing,the Contractor
shall repair or replace the failed segment of the wire:Continuity test shall be repeated as necessary
E. Notification: Notify ONWASA and, if necessary,the testing agency 72 hours in advance of all required
testing and have witness test. - -
F. Test Pressure: Not less than.150 psi, the test will result in automatic failure if the test pressure drops
below'l50 psi and fails an allowable leakage test.• '
G. Prior to conducting pressure testing,the Contractor shall demonstrate to the ONWASA Representative
that all valves in the system are fully opened. ,
H. ' Pressure and Leakage Test Procedure:, • .
1., .Pressure and leakage, testing ,is the responsibility of the Contractor, who shall provide all
_ materials,labor, and equipment,and pay for the total volume of water used.
2. Prior to conducting pressure testing, the ,Contractor shall demonstrate to the ONWASA
Representative that all valves in the system are fully opened.
` 3. After completion of pipeline installation, including backfill, but prior to final connection to existing
system, conduct pressure and leakage tests in accordance with AWWA C600 unless otherwise
required by this.Section. . -, •
4. Conduct tests for at least two-hour duration.
5. Pipeline installations that lose more than 5 psi`at completion of the Hydrostatic Pressure Test
will be required to pass an Allowable Leakage Test. ,
6. Before applying test pressure, completely expel air from section of piping under test. Provide
' corporation cocks so air can be expelled as pipeline is filled with water, After air has been
- expelled, close corporation'cocks and apply•test pressure.' At conclusion of•tests, remove
• corporation cocks and plug resulting piping openings. - • '
ONWASA FORCE MAINS
STANDARD SPECIFICATION FOR DEVELOPERS ,. _ , 33 40 00-11
REVISION 3,May 19,2016 - ,

,
7. Slowly bring piping to test pressure and-allow system;to stabilize prior to conducting leakage
test. Do not open or close valves at differential pressures above rated pressure.
8. Examine exposed piping', fittings,.valves, and joints carefully during pressure test. Repair-or
replace damage or defective pipe,fittings,valves,or joints discovered,following pressure test.
9. No pipeline installation will be approved when leakage,test, if required, is greater than that
determined by the following formula:
AL.—(5 80)�( 12• 0)
AL=allowable leakage over 2-hour test period at 150 psi.In gallons
L=length of pipe tested,in feet . - -
D=nominal diameter of pipe,in inches - " . . ` ,
10. 'When leakage exceeds specified acceptable;rate, locate source and make repairs. Repeat test
until specified leakage requirements are met.
11•. Test must be witnessed by ONWASA and the Certifying Engineer. Both parties must complete
' - and sign ONWASA's Leakage/Hydrostatic/Chlorination and'Flushing Form before the sewer line
• will-be approved. -
' 12: Sewer systems constructed in side of City of Jacksonville ETJ-(Extra Territorial Jurisdiction)will
, - be inspected,by the City of Jacksonville inspection personnel. ONWASA personnel will witness
the Inspection.The City of Jacksonville will provide a copy...of the inspection report to ONWASA
for their records. ,
4.13 COMPLETION OF TEST
•
A. _ After successful completion of testing,mains shall be flushed and cleaned and all connections made
prior to acceptance.
4.14 CONNECTION TO SEWER SYSTEM - , , . . ,
A. No connection shall be made to the existing sewer_system until the CONTRACTOR has obtained all
necessary approvals from ONWASA and the North Carolina Division of Environment Quality, Division
of Water Resources has acknowledged receipt of the Engineer's Certification. .
B. Connections shall be made by approved methods and in accordance with the requirements of these
Specifications and ONWASA.
C. No pipe shall be epened until the new system is complete,tested and approved in•accordance with these
specifications and ONWASA's requirements under them. ' ' '
END OF SECTION
•
ONWASA FORCE MAINS
STANDARD SPECIFICATION FOR DEVELOPERS . • •, 3340 00-12
REVISION 3,May 19,2016

SPS 1 of 10
PARKER & ASSOCIATES , INC .
`' •• ENGINEERS - SURVEYORS •'•PL'ANN'ERS
JACKSONVILLE , NORTH CAROLINA
RICHLANDS MINI-STORAGE ADDITIONS
TECHNICAL SPECIFICATIONS - SEWAGE PUMPING STATION
SECTION 1 - PUMPING SYSTEM .
A. General - Contractor shall furnish all labor, materials, equipment and incidentals .
required to install a simplex centrifugal,,'submersible sewage grinder pump
package pump station: The grinder pump'shall be capable'of pumping 20 GPM at
22 feet TDH and shall be Myers Model WG20 sewage grinder pump, with 2HP,
3,450 RPM. 208 Volt, 3 phase motor, 1-1/4" Discharge; or approved equal. The
entire system, including .the pump, control panel and appurtenances shall be
' supplied by the `same' manufacturer to ' insure' suitability and assurance of
experience in matching the equipment together and to provide 'single source
responsibility for the equipment. ,
The Contractor shall verify the available electrical voltage for the station prior to
ordering any affected equipment. Contractor shall coordinate with the Power
Company to supply power to the site. See Electrical'Specifications and Plans'for
more information.
B. Puma Construction • ' = - , ' . . '
CONSTRUCTION = The pump shall be of the `sealed submersible type. The
pump volute, motor and seal housing shall be high quality gray cast iron, ASTM
' A-48, Class'30. All'external mating parts shall be machined.and Buna N'Rubber
0-ring sealed on a beveled edge. Gaskets shall not be acceptable. All fasteners
exposed to the pumped liquids shall be 300 series stainless steel.
ELECTRICAL POWER CORD - Electrical power cord shall be STW-A, water
resistant 600V, 60 degrees Celsius, UL and C.S.A. approved and applied
dependent on amp draw for size.
The pump shall be triple protected with a compression fitting and two epoxy potted
areas at the power cord entry to the pump. A separation between the junction box
area of the pump and the motor by a stator lead sealing gland or terminal board
shall not be acceptable.
306 New Bridge Street J P.O. Box 976 I Jacksonville, NC 28541-09761,010) 455-2414 I'Fax`[phone]
Firm License Number F-0108 I www.parkerjacksonville.com

SPS 2of10
The power cable entry into,the cord cap assembly shall'first be made with a
compression fitting., Each,individual lead shall be stripped down,,to bare wire at
staggered;intervals, and each strand shall be individually separated. . This area of
the cord cap shall then be filled with an epoxy compound potting which will prevent
water contamination to_gain entry even in the event of wicking or capillary
attraction. -The power cord leads shall then be connected to the motor leads with extra heavy
connectors having brass inserts with a screwed wire to wire connection, rather
than a terminal board that allows for possible leaks.
The connection box wiring shall be separated from the motor housing wiring by
stripping each lead down to bare wire, at staggered intervals, and separating each
strand. This area shall be filled with an epoxy compound potting. Fiberglass
terminal board which is subject to heat fatigue and cracking, and which may lead to
possible leaks shall not be acceptable. ,
The.cord cap assembly where bolted to the connection box assembly and the
connection box assembly shall be sealed with a Buna N Rubber•O-ring on a
beveled edge to assure proper sealing.
MOTOR-,The,stator, rotor.and bearings shall be_mounted in a sealed submersible
type housing. The stator windings shall have-Class F insulation, (155 degrees
Celsius or 311 degrees Fahrenheit), and. a dielectric oil filled motor, NEMA B
design (3 phase), NEMA L design (single phase). Further protection shall be
provided by on winding thermal sensors. Because air-filled motors do not
dissipate heat as efficiently as oil-filled motors, air filled designs shall not be
acceptable.
The pump and motor shall be specifically designed so that they may be operated
partially dry or completely submerged in the liquid being pumped. The pump shall
not require cooling water jackets. Dependence upon, or use of, water jackets for
supplemental cooling shall not be acceptable: .,
Stators shall be securely held in place with a removable end ring and threaded
fasteners so they may be easily removed.in the field without the use of heat or a
press. Stators held by a heat shrink,fit shall not be,acceptable. Stators must be
capable of being repaired or rewound by local motor service station. Units which
require service only by the factory shall not be acceptable. No special tool shall
be required for pump and motor disassembly. . ,
Pump-shall be equipped with heat sensors. The heat sensor(s) (one on a single
phase, two on three phase) shall be a low resistance, bi-metal disc that is
temperature,sensitive. It(they)shall be mounted directly in the stator and sized to
open at 120 degrees Celsius or 130 degrees Celsius and automatically reset at
30-35 degrees Celsius differential. The sensor shall be connected in series with
the motor starter coil so that the starter is tripped as a heat sensor opens. The
motor starter shall be equipped with three leg overload heaters so all normal
overloads are protected,by the starter., ,

SPS 3of10
', 'BEARINGS AND SHAFT - An upper radial bearing and a lower thrust bearing
' shall be required. These shall be heavy duty single row ball bearings which are
permanently lubricated by the dielectric oil which fills the motor housing. Double
row, sealed grease packed -bearings shall not be acceptable. Bearings which
require lubrication according to a prescribed schedule shall not be acceptable.
Bearings shall be locally available. Units which require the use of more than two
bearings shall not be acceptable.
'The shaft shall be machined from a solid 303 stainless steel-forging and be a
design which is of large diameter with minimum overhang to reduce shaft
deflection and prolong bearing life.
SEALS -The pump shall have two mechanical seals, mounted in tandem, with an
oil chamber between the seals. John Crane Type'21; BFIC1, seals shall be used
with rotating seal faces being carbon and the stationary seal faces to be ceramic.
The lower seal shall be replaceable without disassembly of the seal chamber and
without the use of special tools. Units which require the use of tungsten-carbide
'seals or foreign manufactured seals shall not be`acceptable. Seals shall be
locally"available. - ' • - '
The pump shall be equipped with a seal leak detection probe and warning system.
• This shall be designedto alert maintenance personnel of lower seal failure without
having to take the unit out of service for inspection or requiring access for checking
seal chamber-oil level and consistency. • ' -
There shall be anelectricprobe or seal failure sensor installed in the seal chamber
' -'between the two tandem mechanical seals. If the lower seal fails, contaminants
which enter the seal chamber shall be detected by the sensor and send a signal to
operate the specified warning device.
Units equipped with opposed-mechanical seals shall not'be acceptable.
IMPELLER - Impeller shall be Ductile Iron -and 'of the two-valve enclosed
non-clogging design and have pump-out vanes on the front and backside of the
impeller to prevent grit and other materials from collecting in the seal area. Single
vane design impellers which cannot be easily trimmed and which do not maintain
balance with wear causing shaft deflections and reducing seal and bearing'life are
not acceptable: impeller shall not require coating. Because most impeller
coatings-do not remain beyond the'very early life of the impeller, performance data
submitted shall be based on performance with‘an uncoated impeller. Attempts to
improve efficiency by coating impeller shall not be acceptable. Impellers shall be
dynamically balanced. The tolerance values shall be as listed below according to
the International Standard Organization-Grade 6.3 for rotors in rigid frames. The
tolerance is to be split'equally between the two balance'-planes which are the two
impeller'shrouds.
-
. - ' RPM Tolerance '
3500 .01 in. -oz./lb. of inwellerweight -
1750 .02 in.- oz./lb. of impeller weight
1150 .026 in. - oz./lb. of impeller weight

SPS 4of10
870 .03 in.,,;,oz./Ib. of impeller weight
The impeller shall be slip fit to a tapered shaft and key driven. A300 series steel
washer and impeller bolt shall be used to fasten the impeller to the shaft. Straight
- ;.end -shafts and/or threaded shafts for attachment of the impeller shall not be
acceptable. , . • .
CASING - The casing shall be of,the end suction volute type having sufficient
, strength,and thickness to.,withstand all stress, and ,strain, from,service at full
operating pressure and load, The,casing shall be of the centerline discharge type
equipped with an automatic pipe coupling arrangement for ease of installation and
piping alignment. The design shall be such that the pumps will be automatically
connected to the discharge piping when lowered into position with the guide rails.
The casing shall be accurately machined and bored for register fits with the suction
and casing covers. •
A volute case wearing ring shall be provided to minimize impeller wear. The wear
ring shall be alloy 230 brass, ASTMS-43'and held by 300 series stainless steel
fasteners. The wear ring shall_be easily replaceable in the field. Wear rings of
any other materials shall not be acceptable.
PAINTING - The pump shall be painted after assembly, but before testing, with a
water reducible enamel. The paint+,shall be applied in one coat. The paint shall
be air dried prior to testing. ,
SERVICEABILITY ' The complete rotating assembly shall be capable of being
removed from the•volute without disturbing the suction piping, discharge piping,
and volute. The motor housing, seal housing with seal plate and impeller still
attached to the shaft shall be capable of being.lifted out of the volute case form the
'top as one assembly.
SUPPORT - Though the pump may not require feet to support the unit while
installed, the pump volute must have feet to support•the unit whenremoved for
service. Units which do not have feet upon which the unit can be supported when
removed for service shall not be.acceptable. ,
C. LIFT OUT RAIL. SYSTEM -A slide away coupling shall be provided to allow the
pump to be installed or removed without requiring personnel to enter the wet well.
The coupling shall consist of a discharge elbow securely fastened to the flow of the
wet well, a movable bracket that bolts to the pump discharge flange and mates with
thedischarge elbow, and a.systerri of guide pipes to guide the,pump and movable
bracket,from the discharge,elbow.to the access cover in the top,.of the wet well.
Mating of the movable bracket to the discharge elbow shall be accomplished by a
linear downward 'motion. The mating faces of the removable bracket and
discharge elbow shall be dissimilar materials, one being cast iron, the other
stainless steel, to,prevent corrosion from causing the faces to stick. The faces
shall be wedged together by an inclined plane bearing on the back.of the movable _
bracket face. This bearing surface shall be a point contact to prevent sticking.
.- The entireweight of the pump shall rest on this connection to assure maximum
sealing. .

SPS 5 of 10
Other automatic discharge connection requiring rotation of the pump, rubber diaphragms
or gaskets, etc. to affect sealing shall not be considered equal. .
The guide pipe'system shall,consist of two heavy duty stainless steel pipes of size
and length as shown on the plans. These pipes shall terminate on the discharge
elbow and a bracket provided by the manufacturer attached to the access cover.
The movable bracket-shall engage-a minimum of 20-inches of the guide pipes at
any one timeand shall wrap around the guide pipes in excess of 180 degrees none
of the pump time,
shalt bear on the guidepipes:; This arrangement shall allow
• installation of the guide pipes with no intermediate supports. •
Each pump,shall be fitted with a stainless steel lifting cable for'pump installation
and removal. The cable'shall have a minimum breaking strength of 2,100
pounds. All hardware shall be 300 series steel.
SECTION 2 - ELECTRICAL EQUIPMENT ` .‘ . ' "
A. General - Electrical`service to the site shall be provided by-the Owner. The
Contractor is to provide all coordination with the power company to supply power
to the site. The Contractor will be required to install a meter, pole with area light,
. and disconnect for connection by the'power company as well as all wiring
throughout the Sewage Pumping Station system. In addition,,a 110-volt, 20 Amp,
weatherproof GFI duplex receptacle shall be installed at each pump station
exterior of the control panels with its own breaker for temporary power needs. A
Lighting Arrestor shall be provided to'protect the panels from'a lightning strike. See
' plans for additional information.
All electrical work shall conform to the latest edition of'the'National Electrical Code
(NEC).
•Control Panel Support shall be constructed of 4" diameter galvanized posts
' installed 4"feet'minimum'in the ground embedded in'a,4' deep, 18"diameter
concrete footing. The posts shall have caps on the tops. Posts shall be no'more
than 8 feet apart. Heavy duty galvanized unistruts'shall'be attached to the posts
with galvanized anchoring and used to support the control panels. See detail on
plans for additional information.'
' Disconnect switch shall be non-fusible switch assembly,'National Electrical
Manufacturers Association,(NEMA) ks 1, type HD, quick-make, quick break, load
interrupter enclosed knife switch with externally operable handle inter-locked to
;prevent'opening with front cover in ON position. Handle lockable in OFF position.
Disconnect swatch shall be enclosed in a NEMA 4X cabinet and shall be sized in
accordance with pump manufacturer's recommendations. ,
Meter base assembly shall be in a"NEMA 4X enclosure suitable for acceptance of
meter to be provided and installed,by local power company. , .
Exposed'conduit shall be Schedule 40 PVC and shaltconform to NEMA,TC-8.
Exposed PVC conduit shall be type DB, Schedule 40. PVC conduit for concrete

•
SPS 6of10
encasement where shown shall be type EB. PVC conduit shall be in accordance
with UL-651 "heavy-wall"for direct,burial and "thin-wall"for concrete encasement.
All PVC conduit runs shall contain a green TW insulated copper grounding
conductor sized,in accordance with the NEC. Fittings, elbows, etc. shall be
manufactured in accordance with NEMA TC-9. PVC conduit and fittings shall be
manufactured by Carlon, Queen City, or equal. Each length of conduit shall be
stamped with the name and,trademark of the manufacturer and shall bearthe
Underwriter's Label. Joints shall be made completely liquid tight by use of the
manufacturer's approved sealant. The sealant shall be applied only in dry
conditions and to dry materials.
All conductors-shall,be installed,-in;accordance with the NEC and shall be copper
. with type THW insulation. Conductors supplying pump station shall be sized in
accordance with pump manufacturer's recommendations. ,Minimum wire size for
duplex receptacle circuit shall be 10 AWG. Splices shall take place only within
accessible, weatherproof junction boxes. All connectors shall be copper and
•, shall have a conductivity not,less,than that of the conductor to which they are
attached. , - ,
•
The Contractor shall provide a fully bonded system of grounding in accordance
,with the NEC including all systems and equipment requiring grounding in
accordance with the NEC and other prevailing,code requirements and in,,
compliance with the electrical utilityserving the project. Ground connections shall
be made to non-current carrying metal parts of structures, accessories, etc. All
ground.conductors shall be copper, sized in accordance with the NEC andthe
pump manufacturer's;recommendations. See plans for additional information.
B. Control Panel - The pump manufacturer shall supply a completely self contained
Simplex Motor Control Panel for one 208 volt, 3 Phase submersible pump.
Contractor shall verify electricalpower supply prior to ordering and
installing equipment. The control panel shall provide short circuit and overload
protection for each pump. The control panel shall conform to NEMA, Joint
Industry Council (JIC), and NEC specifications, and shall be Underwriter's
Laboratories (UL) listed. ,
The simplex motor controls shall be housed in a NEMA 4X stainless steel
_ enclosure. There shall be a rolled lip around all four sides of the enclosure
opening and around three sides of the'door to increase strength and prevent dirt
-and liquids from dropping into the enclosure when the,door is.open. The door
shall be fastened to the enclosure with,a continuous hinge. A neoprene gasket
shall be provided fastened with oil resistant adhesive around the entire perimeter
of the door. The enclosure shall be provided with a tamper-proof double,door
system consisting of a blank outer door completely gasketed and weather tight as
described above and a second inner door on which all operating controls:are
located. - .. .
•

SPS 7of10
Located on the inner door shall be operating-controls including, but not limited to,
motor=circuit breaker handles, pump lead'select switch', hand-off-auto switches,
pump run lights, pump run time meter, seal failure lights, heat sensor and phase
sensor failure lights, and overload reset buttons. A padlock hasp'shall be
• -provided.
The control panel shall include lightning protection to safe guard the equipment.
• •The panel shall be floor mounted if necessary.
A hands-off-automatic selector switch shall be provided. Selector switches
shall be of oil-tight construction; toggle switch types shall not be considered equal.
Each selector switch shall be identified with an engraved metal legend plate held in
place by the switch mounting nut.." Selector'switch contacts shall be heavy duty,
double-break, silver, Furnas Electric, Class 50 or equal. These'switches shall be
mounted on the inner door. "
One (1) elapse time meter shall'be provided'to accurately'record the pump run
time of each pump in hours and tenths and shall be able to record up to 99,999.9
hours, These hour-meters shall be mounted on the inner door.
A seal failure system shall be installed within the pump andreontrol systems to
indicate when any water penetrates the seal chamber. A double electrode,probe
shall be•installed in the inner-seal chamber to energize upon water passing thru the
first seal. It shall then transmit a signal to the sensing unit in the control panel
causing a red light on the inner'-door to illuminate. The signal shall not stop motor
but shall act as a warning only, indicating service is required. The "seal failure red
light shall be mounted on the inner door.
A Heat sensor unit shall be embedded in the motor winding to detect excessive
heat: The heat sensors should be set to trip at 105 degreesC'. Uponythe heat
sensor tripping, a signal shall be transmitted to th'e sensing unit in the control panel
causing the activation of the red light on the inner door and causing the pump to
stop. The sensors shall automatically reset when the motor cools to a safe
temperature. The red heat sensor light shall be mounted on the inner door.
A phase sensor relay system shall be'provided to automatically shut down
control circuity Upon sensing low voltage, phase failure or phase reversal to any of
the three incoming lines. Contacts will be provided for operation of the alarm
system in the event of a shutdown due to phase failure.`• Upon the return of normal
incoming three phase power, the system shall automatically`return to its normal
operation condition. The red phase failure•light shall be mounted on the inner
door: •
A three`pole circuit breaker sized to NEC requirements shall be provided. A
through-door operator interlocked to the enclosure door shall be provided for each
circuit breaker so that the door cannot be opened with the circuit breakers on.
The operator shall be provided with an interlock defeat device which requires a
hand tool to operate and shall be lockable in the off position. Minimum interrupt-
ing capacity shall be 10,000 symmetrical amperes. Circuit breakers shall be
Westinghouse EB frame or equal.

•
SPS 8of10
The pump motor shall be provided with a NEMA rated across the line motor
starter. The starter shall employ gravity drop-out armatures without bell cranks
or other mechanical linkages.which are subjecttofailure. -Starter coils and
contacts shall be,easily replaceable with standard hand tools and without
removing the starter from the panel Starters shall be,equipped with one,ambient
compensated quick-trip overloading each phase., ,Overloads shall be,capable of
either manual or automatic reset and shall have a manual trip button to facilitate
testing of the overload mechanism. A reset button shall be provided on the door
for each overload. Starters shall be Furnas Electric Class 14 or equal.
A control transformer shall be provided to supply 115 VAC for the control circuit.
The transformer shall be sized according to the transformer manufacturer's
instructions to supply the total connected load in the panel. ,Connection to,the
transformer shall be by means of a molded barrier terminal block. The terminal
block shall be an integral part of a molded No_,ryl shell which shall contain the ,
'-transformer windings. The winding shall be potted in the molded shell using a
high thermal conductivity epoxy resin. Both legs of the transformer secondary
shall be fused according to JIC specifications. A ground lug shall be provided
adjacent to,one of the fuses so'that the load side of that fuse may be grounded if,
required by'local electrical codes. The control transformer shall be Micron
Industries Impervi;Tran or equal., , .
Relays shall be NEMA 300 volt open frame industrial control type, Furnas Electric
Class 46 orequal. _ , ,
' Terminal blocks shall be provided for all external connections to the control panel
and'for all connections between the component mounting plate and enclosure
mounted components to allow for easy removal of the component mounting plate if
required for service. Terminal blocks shall consist of individual snap together
contact sections mounted on a common mounting channel. Terminal block
sections shall have tubular screw contacts mounted in.a nylon housing to resist
breakage; phenolic or other rigid, brittle materials shall not be considered equal.
Plain screw contacts requiring lugs to be installed on wires shall not be considered
equal. Power terminal block shall meet 600 volt creepage and clearance
requirements of NEMA and UL for general industrial control equipment and panel
boards. Power terminal block sections shall be Buchanan Catalog Number 0242
or.equal. Control Circuit Terminal Block shall be rated 300 volts as NEMA general
industrial control devices. Control circuit terminal block shall be Buchanan
Catalog Number 0625 or equal., ,
C. Liquid Level Controls and Alarm -The Contractor will furnish.and install three
(3) Mercury Float Level Controls. Each level control shall consist of a steel
shelled mercury switch encased in a solid polyurethane float and attached to 16/2
SJO cable. Float control cables shall extend from wet well to the control panel.
;Splicing of cables is not permitted. -Each,.level control shall be supplied with a
stainless steel bank clamp to facilitate mounting in the wet well. -Level controls
employing glass switches or hollow floats shall-not be considered equal.
A high water'alarm flashing light and horn"shall,be provided in a weatherproof
enclosure formounting on.the outside of the control panel. Alarm light shall glow
dim at all'times except under alarm conditions, then light shall glow bright and

SPS 9of10
flash. Alarm horn,shall have silencing switch with automatic reset.'
D. Operation of-System'-On sump Ievel=rise,'lower mercury switch "pump off' shall
first be energized, then upper level switch "pump on"shall next energize and start
pump. With pump operating, sump level shall lower to low switch."pump off'
setting and pump shall"stop. -
If'Ievel continues to rise when pump is operating, an alarm switch shall energize
and signal the alarm. 'All level switches shall'be adjustable,for level setting, from
the surface.
SECTION 3 = PUMP STATION START-UP
The Engineer and'Utility:Company shall be notified of the start-up at least'48 hours in
advance and will observe the tests:
The pumping system-shall be tested by a qualified representative of the manufacturer
to insure the system'is complete and operating as designed. A start-up_report
provided by the manufacturer's field representative shall be provided before final
acceptance of the system. The Engineer may require'additional tests to be
performed that are not included in the start-up report. The pump equipment ,
manufacturer shall furnish the services of a qualified factory trained field service
engineer for a minimum of one 8 hour working day at the site to inspect-the installation
and instruct the Owner's personnel on the operation and maintenance of the pumping
units. After the pumps have been completely installed and wired, the Contractor
shall have the manufacturer do the following:
A:- Check power supply voltage; `
B. Check for proper rotation; '' '
'C. -' Measure motor operating load and no load current;
D. ' Check seal lubrication;
E. ' Check level control operation and sequence;
F. Check guide rail, access door, alarm-light and horn
installations;'
'G.- ' Perform dravif down test for'the pump. Contractor is responsible for
supplying the necessary water for these tests. ' '
H. During this start-up, the manufacturer's service representative shall
provide three OPERATION AND MAINTENANCE (O&M) MANUALS on
all of the equipment:installed within the system, and shall review
recommended operation and maintenance procedures,with the Owner's
personnel.
In addition, one set Of RECORD DRAWING'S'of planssand'specifidations
' shall-be-submitted to the'Engineer prior"to final acceptance. Record
drawings shall includeany'deviation's from the plans and'specifications
including any change in,location of facilities, any change in materials
specified, and any other deviations that should be known to the Owner,
Engineer, and Operator for efficient operation and aintenance of the
pumping Station:

SPS 10 of 10
During this start-up, a final inspection will be made by the Engineer and
the Utility Company prior to final acceptance by them. In addition, an
inspection may be required by the NCDEQ prior to their acceptance. A
representative of the manufacturer, the Contractor, and the Operator '
shall be on-site for these final inspections.
I. Submittals -The Contractor shall submit a minimum of three (3) copies
of all submittals to the Engineer-for approval. -Of these, one (1) copy
will be returned to the Contractor.
Each set of submittals shall include, but not be limited to:
1. Drawings showing all dimensions and locations of all
- equipment and accessories; including a piping layout;
2. Details and electrical wiring diagrams for all control
equipment;
3. Performance data of all equipment including, but not
limited to, pump curves and motor data.
4. All additional information needed by the Engineer to •
determine if the proposed equipment meets the intent of
the plans and specifications. .
J. Guarantee .
- The manufacturers of the sewage pumping station equipment shall
guarantee for one (1) year from the date of acceptance by the Owner
that the'vessel and all component equipment shall be free from
defective materials and workmanship. The manufacturer shall furnish
replacement parts for any component considered in the opinion of the
manufacturer to be defective, whether of his or other manufacture
during the guarantee period.
The Contractor shall guarantee all work and'materials furnished during
the installation of the sewage pumping station to be guaranteed for one
(1) year from the date of final acceptance by the Owner.
C1.2018.SPECS.RICHLANDSMINISTOR.SPS.6.18.18 REV 110618 . .

PARKER & ASSOCIATES , INC .
ENGINEERS • SURVEYORS'. PLANNERS ' '
JACKSONVILLE , NORTH CAROLINA
[phone] I Fax[phone] ,
306 New Bridge Street I P.O.Box 976 , AT-
Jacksonville,NC 28541-0976
Firm License Number F-0108 -
SEWAGE PUMPING STATION
TO SERVE
RICHLANDS MINI-STORAGE ADDITIONS
SEWAGE PUMPING STATION CALCULATIONS ��$14 CAgp�,,,�i i'1
ti.. 6FESS/'6 4 i9
May 2018 ;QQ' e i
Revised November 2018 = SEAL
` = 1 14575
1. DESIGN FLOW: O) �!GtN �Qv/P.�'
YM S
,,,_. ,,,,,,'
A. Proposed Flow . ,
Mini-Storage Office- 1 Employee x 25 GPD , = 25 AVG
- Peak Flow = 25 GPD x 6 Peak Factor = . 150 GPD Peak
0.1 GPM Peak
Pump Size Use 20 GPM Pumps
2. SYSTEM DATA: -
SPS Influent Invert Elevation29.6 Feet
Force,Main High Point Elevation , 31 Feet
Pump off Elevation , , 27.6 Feet
Wetwell Diameter - 2.5 Feet
Pump Off Elevation28.1 Feet
Pump On Elevation - 28.6 Feet
Alarm Elevation 29.1 Feet
Civil Engineering I Stormwater and Environmental Consulting
Feasibility and Development Planning I Land Surveying and Mapping I Subdivision and Construction Plans ,

Richlands Mini-Storage Additions ,
Sewage Pumping Station Calculations ,
May 2018,Rev November 2018
Page 2 of 4
3. CYCLE TIME:
Wetwell Storage Volume(s) =aR2 x Height x 7.48 gallons
cubic feet
=n(1.25')2 x 0.5' x 7.48 = 18.4 gallons
Pump Cycle Time(T)
T = S + S •
Average flow pump rate—average flow
T= 18.4 gallons + 18.4 gallons
0.1 gpm 20 gpm—0.1 gpm
T= 185 minutes
4. TOTAL DYNAMIC HEAD (TDH):
TDH = Static Head + Friction Head(Force Main+Station)
A. Force Main Friction Head
1)20 GPM through 1-1/4"PVC SFM to existing 6"SFM
Equivalent Pipe
Pipe and Fittings Length in Feet
6 L.F. 1-1/4"PVC Force Main • 6 feet
Total Equivalent Length 2"PVC pipe 6 feet
Friction Loss of 1-1/4" SCH 40 PVC at 20 GPM M = 8.0 Ft
With C= 120 100 Ft
8.0 Ft x 6 Ft = 0.5 Ft Friction Loss in Pipe
100 Ft

Richlands Mini-Storage Additions
Sewage Pumping Station Calculations
May 2018, Rev November 2018
Page 3 of 4
2) 285 GPM(185 GPM Airport SPS+4-25 GPM SPS)through 6"PVC SFM to
Existing MH Discharge
Pipe and Fittings Equivalent Pipe
Length in Feet
1675 L.F. 6" PVC Force Main 1675 feet
8-45°Bends @ 8 Ft. 64 feet
2-90°Bends @ 17 Ft. 34 feet
Total Equivalent Length 6"PVC pipe 1773 feet
Friction Loss of 6" C900 PVC at 2.85 GPM=0.81 Ft
WithC= 120 100 Ft
0.81 Ft x 1773 = 14.4 L Friction Loss in Pike
B. Friction Loss in Station
• Equivalent Pipe
Pipe and Fittings Lengths in Feet
5 L.F. 1-1/4" SCH 80 PVC 5 feet
1 Each Tee at 8 Ft. 8 feet
2—90 Degree Bends at 4 Ft. 8 feet
1 Each Globe Valve at 35 Ft. 35 feet
1 Each Check Valve at 9 Ft. 9 feet
' Total Equivalent length 1-1/4" SCH 80 PVC Pipe 65 feet
Head Loss for 1-1/4" SCH 80 PVC Pipe at 20 GPM =8.0 Ft
WithC= 120 100 Ft
8.0 Ft x 65 Ft=52 feet Frictiol'tLoss in Station
100 Ft
C. Static Head '
= Force main High Point Elevation - Pump Off Elevation
= 31.0 - 27.6
= 3.4Ft

Richlands Mini-Storage Additions
• Sewage Pumping Station Calculations
May 2018, Rev November 2018
Page 4 of 4
D. Total Dynamic Head = 14.5 +5.2 + 3.4
" = 23.1
Use TDH of = 22 Feet
PUMP SELECTION
System requirements 20 GPM @ 22 feet TDH
Use Myers Simplex Grinder Pump Station Model WG20 with 2Hp pump,4.0 inch
impellar and NEMA 4x fiberglass control panel or approved equal(see attached
curve)
Secretary.C2.2018.TMS.SPCSCALC RICHLANDSMINSTORADD.SPSCALCS.5.24.18 Rev 110618

Pum.Data Sheet - M -Is
Company:parker and assoc
Name: , IVITIlleirS
Date: 11/6/2018
Pimp /patch Crib
Size: ; G20 WGL20,MG200 Flow: 20 US gpm Head: 22 ft
Type: Grinder Speed: 2875 rpm (P�uldc - - -
Synch speed: 3000 rpm Dia: 3.875 in -
Curve: Impeller: Water Temperature:60°F
Density: 62.37 lb/fts Vapor pressure: 0.2563 psi a
Specific Speeds: Ns: - Viscosity: 1.105 cP Atm pressure: 14.7 psi a
Nss: -- NPSHa: -
Dimensions: Suction: -
Discharge: 1.25 in LMotar:
i Feeip Linin: Size: 1.5 hp
Standard: NEMA Speed: 3000
Temperature: -- Power: - Enclosure: TEFC Frame: 143T
Pressure: -- Eye area: - Sizing criteria: Max Power on Design Curve
Sphere size: --
- Data Polni-
{__HeFlow: 20 US gpm 70 5.5 in-I--
Head:
ad: 24.6 ft
Eff: --
Power: 1.16 hp 60 1 {
NPSHr: -
I _ -Design Ciove- 50 I
Shutoff head: 36.1 ft I . ,
Shutoff dP: 15.7 psi C If ,
Min flow: .a 40 -r � • i
---
BEP: -% to 3.875 in
NOL power: _ 1 i I � 1
1.16 hp@2.08USgpm 30 3.5 in - - - t j {
I - _r_Max Come= - _
Max power: '
1.16 hp @ 2.08 US gpm 20 // IV„
f i
10I /�
0I -
1.5 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25- 27.5 3'0 32.5 }
= 1 t
y 0.5 I
0, 0
Z 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25 27.5 30 32.5
US gpm
i Performance-Evaluation: .
Flow Speed Head Efficiency Power NPSHr
US gpm rpm ft % hp ft
24 2875 21.3 - 1.16 --
20 2875 24.6 -- 1.16 --
16 2875 27.5 - 1.16 --
12 2875 30.1 . - 1.16 --
8 2875 32.4 - 1.16 --
Myers MAPS 6 6 Selected from catalog: Myers 50Hz Vers:Nov 2009

PARKER & ASSOCIATES , INC . AT- -
ENGINEERS • SURVEYORS • PLANNERS
JACKSONVILLE , NORTH CAROLINA
•,,1H CAROC•.,�
2O.&E'Ssio�;. 2
RICHLANDS MINI-STORAGE ADDITIONS : :4 9�9
SEWAGE PUMP STATION ' - SEAL ' =
BUOYANCY CALCULATIONS. = 1- 14575
November 2018 • .Qz.
ti
1. Downward Force=Weight of pump station+base+weight of overburden soil ',,;;�,M,,S,,,
A. Weight of Concrete Anti-Flotation Base
Volume of Concrete Base = n(2.75 Ft)2 x 12"=23.76 Ft3
Volume of Concrete Above Base = D x(nRo 2 — 7rR12)= 12"x Or(2.75 Ft)2 -
7r(1.25 Ft)2)
18.85 Ft3
Total Volume of Concrete = 42.61 Ft3
Weight of Concrete= 150 lbs/Ft3 x 42.61 Ft3= 6391 lbs.Downward force of
Concrete Anti-Flotation Base
B. Weight of Overburden Soil " ' `
Volume = D x(irRo2 — nR12) = 5.4 Ft x(iv(2.75)2 -it(1.25 ft)2)
= 101.8 ft3
Weight of Soil= 100 lbs/Ft3 x 101.8 Ft3 = 10.179 lbs. Downward force of Soil
TOTAL DOWNWARD FORCE = 16,570 lbs.
2. Buoyancy Force(Upward Force)
Volume of Wetwell = 6.4 Ft x(rt(R2))
31.4 113
Volume of Anti-Flotation Concrete = 42.6 ft3
Volume of Overburden Soil = 101.8 Ft3
TOTAL BUOYANCY FORCE = 175.8 Ft3 x 62.4 lbs/Ft3
= 10,970 lbs. Upward Force
306 New Bridge Street I P.O. Box 976'Jacksonville, NC 28541-0976 I [phone] Fax[phone]
Firm License Number F-0108 f www.parkerjacksonville.com

•
Page Two of Two
November,2018
SPS Buoyancy Calculations . + _
3. Conclusion
Downward Force > Buoyancy Force •
16,570,1bs. > 10,970 lbs. - ' O.K.
Note:, Downward forces shown do not include weight of water,pumps,pipe and equipment in wet well.
•
C1.2018.Specs.RichlandsMiniStorage.SPS.Buoyancy.Calcs.102918 Rev 110618
•
f