USACE / NAVFAC / AFCESA / NASA UFGS-33 32 13.14 (January 2008)
------------------------------
Preparing Activity: NAVFAC Superseding, in part
UFGS-33 32 16.13 (January 2001)
UNIFIED FACILITIES GUIDE SPECIFICATIONS
References are in agreement with UMRL dated January 2009
SECTION 33 32 13.14
PACKAGED SEWAGE LIFT STATIONS, GRINDER PUMP TYPE
01/08
NOTE: This guide specification covers the requirements for Grinder Pump Packaged
Lift Stations including alarm requirements, station piping, and O&M data
packages.
Edit this guide specification for project specific requirements by adding, deleting,
or revising text. For bracketed items, choose applicable items(s) or insert
appropriate information.
Remove information and requirements not required in respective project, whether
or not brackets are present.
Comments and suggestions on this guide specification are welcome and should
be directed to the technical proponent of the specification. A listing of technical
proponents, including their organization designation and telephone number, is
on the Internet.
Recommended changes to a UFGS should be submitted as a Criteria Change Request
(CCR).
PART 1 GENERAL
1.1 REFERENCES
NOTE: This paragraph is used to list the publications cited in the text of
the guide specification. The publications are referred to in the text by basic
designation only and listed in this paragraph by organization, designation,
date, and title.
Use the Reference Wizard's Check Reference feature when you add a RID outside
of the Section's Reference Article to automatically place the reference in the
Reference Article. Also use the Reference Wizard's Check Reference feature
to update the issue dates.
References not used in the text will automatically be deleted from this section
of the project specification when you choose to reconcile references in the
publish print process.
The publications listed below form a part of this specification to the extent referenced. The publications are
referred to within the text by the basic designation only.
[AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS (AASHTO)AASHTO M 198(2008) Standard Specification for Joints for Concrete Pipe, Manholes and Precast Box Sections Using Preformed Flexible Joint Sealants][AMERICAN WATER WORKS ASSOCIATION (AWWA)AWWA C104/A21.4(2003) Cement-Mortar Lining for Ductile-Iron Pipe and Fittings for WaterAWWA C110/A21.10(2008) Ductile-Iron and Gray-Iron Fittings for WaterAWWA C111/A21.11(2000) Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and FittingsAWWA C115/A21.15(2005) Flanged Ductile-Iron Pipe With Ductile-Iron or Gray-Iron Threaded FlangesAWWA C151/A21.51(2002; Errata 2002) Ductile-Iron Pipe, Centrifugally Cast, for WaterAWWA C500(2002; R 2003) Metal-Seated Gate Valves for Water Supply ServiceAWWA C509(2001) Resilient-Seated Gate Valves for Water Supply ServiceAWWA C600(2005) Installation of Ductile-Iron Water Mains and Their AppurtenancesAWWA M23(2002) Manual: PVC Pipe - Design and Installation][ASME INTERNATIONAL (ASME)ASME B1.20.1(1983; R 2006) Pipe Threads, General Purpose (Inch)ASME B16.1(2005) Standard for Gray Iron Threaded Fittings; Classes 125 and 250ASME B16.11(2005) Forged Fittings, Socket-Welding and ThreadedASME B16.3(2006) Malleable Iron Threaded Fittings, Classes 150 and 300ASME B31.3(2008) Process Piping][ASTM INTERNATIONAL (ASTM)ASTM A 123/A 123M(2008) Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel ProductsASTM A 126(2004) Standard Specification for Gray Iron Castings for Valves, Flanges, and Pipe FittingsASTM A 53/A 53M(2007) Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and SeamlessASTM A 536(1984e1; R 2004) Standard Specification for Ductile Iron CastingsASTM A 615/A 615M(2008b) Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete ReinforcementASTM C 443(2005a) Standard Specification for Joints for Concrete Pipe and Manholes, Using Rubber GasketsASTM C 443M(2007) Standard Specification for Joints for Concrete Pipe and Manholes, Using Rubber Gaskets (Metric)ASTM C 478(2008) Standard Specification for Precast Reinforced Concrete Manhole SectionsASTM C 478M(2008e1) Standard Specification for Precast Reinforced Concrete Manhole Sections (Metric)ASTM D 1784(2008) Standard Specification for Rigid Poly(Vinyl Chloride) (PVC) Compounds and Chlorinated Poly(Vinyl Chloride) (CPVC) CompoundsASTM D 1785(2006) Standard Specification for Poly(Vinyl Chloride) (PVC), Plastic Pipe, Schedules 40, 80, and 120ASTM D 2241(2005) Standard Specification for Poly(Vinyl Chloride) (PVC) Pressure-Rated Pipe (SDR Series)ASTM D 2464(2006) Standard Specification for Threaded Poly(Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 80ASTM D 2466(2006) Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 40ASTM D 2467(2006) Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 80ASTM D 3139(1998; R 2005) Joints for Plastic Pressure Pipes Using Flexible Elastomeric SealsASTM F 477(2008) Standard Specification for Elastomeric Seals (Gaskets) for Joining Plastic Pipe][NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)NEMA MG 1(2007; Errata 2008) Standard for Motors and Generators]1.2 DESCRIPTION OF WORK
The work includes providing submersible sewage grinder pump station and related work. Provide system complete
and ready for operations. Grinder pump station system including equipment, materials, installation, and workmanship
as specified herein.
1.3 SUBMITTALS
NOTE: Review submittal description (SD) definitions in Section 01 33 00 SUBMITTAL
PROCEDURES and edit the following list to reflect only the submittals required
for the project. Submittals should be kept to the minimum required for adequate
quality control.
A “G” following a submittal item indicates that the submittal requires Government
approval. Some submittals are already marked with a “G”. Only delete an existing
“G” if the submittal item is not complex and can be reviewed through the Contractor’s
Quality Control system. Only add a “G” if the submittal is sufficiently important
or complex in context of the project.
For submittals requiring Government approval on Army projects, a code of up
to three characters within the submittal tags may be used following the "G"
designation to indicate the approving authority. Codes for Army projects using
the Resident Management System (RMS) are: "AE" for Architect-Engineer; "DO"
for District Office (Engineering Division or other organization in the District
Office); "AO" for Area Office; "RO" for Resident Office; and "PO" for Project
Office. Codes following the "G" typically are not used for Navy, Air Force,
and NASA projects.
Choose the first bracketed item for Navy, Air Force and NASA projects, or choose
the second bracketed item for Army projects.
Government approval is required for submittals with a "G" designation; submittals not having a "G" designation
are [for Contractor Quality Control approval.][for information only. When used, a designation following the
"G" designation identifies the office that will review the submittal for the Government.] Submit the following
in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:
SD-03 Product Data
Pipe and fittings[; G][; G, [_____]]
Check valves[; G][; G, [_____]]
Gate valves[; G][; G, [_____]]
Submersible sewage grinder pumps[; G][; G, [_____]]
Pump motor[; G][; G, [_____]]
Flexible flanged coupling[; G][; G, [_____]]
SD-10 Operation and Maintenance Data
Submersible Sewage Grinder Pumps Data Package 3[; G][; G, [_____]]
Submit in accordance with Section 01 78 23 OPERATION AND MAINTENANCE DATA.
Include pumps, alarms, and motors. Include all information on all equipment, alarm panel
and controls, pumps and pump performance curves, and station layout in data for submersible
sewage grinder pump station.
1.4 DELIVERY, STORAGE, AND HANDLING OF MATERIALS
1.4.1 Delivery and Storage
Inspect materials delivered to site for damage. Unload and store with minimum handling. Store materials in
enclosures or under protective covering. Store rubber gaskets not to be installed immediately under cover, out
of direct sunlight. Do not store materials directly on the ground. Keep interior of pipes and fittings free
of dirt and debris.
1.4.2 Handling
Handle pipe, fittings, valves, and other accessories in such manner as to ensure delivery to the trench in sound,
undamaged condition. Avoid injury to coatings and linings on pipe and fittings; make satisfactory repairs if
coatings or linings are damaged. Carry pipe to the trench; do not drag it.
1.5 EXCAVATION, TRENCHING, AND BACKFILLING
Provide in accordance with Section 31 00 00 EARTHWORK, except as specified herein.
PART 2 PRODUCTS
2.1 PIPE AND FITTINGS
Provide pressure piping, air release valves, and related accessories for force main piping outside the sewage
wet well and valve vault in accordance with Section 33 30 00 SANITARY SEWERS.
2.1.1 Ductile-Iron Pipe
AWWA C151/A21.51, thickness Class 52.
2.1.1.1 Flanged Pipe
AWWA C115/A21.15, ductile iron.
2.1.1.2 Fittings
AWWA C110/A21.10, flanged. Provide flanged joint fittings within wet well and valve vault as indicated. Provide
mechanical joint fittings outside valve vault enclosure as indicated. Use fittings with pressure rating at least
equivalent to that of the pipe.
2.1.1.3 Joints
AWWA C115/A21.15 for flanged joints. Use bolts, nuts, and gaskets for flanged connections recommended in the
Appendix to AWWA C115/A21.15. Flange for setscrewed flanges must be of ductile iron, ASTM A 536, Grade 65-45-12,
conforming to the applicable requirements of ASME B16.1, Class 250. Setscrews for setscrewed flanges must be
1310 MPa 190,000 psi tensile strength, heat treated, and zinc-coated steel. Conform to the applicable requirements
for mechanical-joint gaskets specified in AWWA C111/A21.11for setscrewed flange gaskets. Use setscrewed gasket
designed to provide for confinement and compression of gasket when joint to adjoining flange is made.
2.1.2 PVC Plastic Pressure Pipe and Associated Fittings
2.1.2.1 Pipe and Fittings Less Than 4 inch 100 mm Diameter
Use pipe, couplings and fittings manufactured of materials conforming to ASTM D 1784, Class 12454-B.
(1) Screw-Joint: Use pipe conforming to dimensional requirements of ASTM D 1785 Schedule 80,
with joints meeting requirements of 1.03 MPa 150 psi working pressure, 1.38 MPa 200 psi hydrostatic
test pressure, unless otherwise shown or specified. Use threaded pipe fittings conforming to
requirements of ASTM D 2464, threaded to conform to the requirements of ASME B1.20.1 for use
with Schedule 80 pipe and fittings. Test pipe couplings when used, as required by ASTM D 2464
.
(2) Push-On Joint: ASTM D 3139, with ASTM F 477 gaskets. Fittings for push-on joints: AWWA C110/A21.10
or AWWA C111/A21.11. Iron fittings and specials: cement-mortar lined (standard thickness)
in accordance with AWWA C104/A21.4.
(3) Solvent Cement Joint: Use pipe conforming to dimensional requirements of ASTM D 1785
or ASTM D 2241 with joints meeting the requirements of 1.03 MPa 150 psi working pressure and
1.38 MPa 200 psi hydrostatic test pressure. USe fittings for solvent cement jointing conforming
to ASTM D 2466 or ASTM D 2467.
2.1.3 Insulating Joints
Provide between pipes of dissimilar metals a rubber gasket or other approved type of insulating joint or dielectric
coupling to effectively prevent metal-to-metal contact between adjacent sections of piping.
2.1.4 Accessories
Provide flanges, connecting pieces, transition glands, transition sleeves, and other adapters as required.
2.1.5 Flexible Flanged Coupling
Provide flexible flanged coupling applicable for sewage as indicated. Use flexible flanged coupling designed
for a working pressure of 2.41 MPa 350 psi.
2.2 VALVES AND OTHER PIPING ACCESSORIES
2.2.1 Gate Valves in Valve Vault
Conform to AWWA C500 for valves with outside-screw-and-yoke rising-stem type with double disc gates and flanged
ends. Conform to AWWA C509 for valves with outside-screw-and-yoke rising-stem type with flanged ends. Provide
valves with handwheels that open by counterclockwise rotation of the valve stem. Bolt and construct stuffing
boxes to permit easy removal of parts for repair. Use valves from one manufacturer.
2.2.2 Check Valves Less Than 100 mm 4 Inch Diameter
Neoprene ball check valve with integral hydraulic sealing flange, designed for a hydraulic working pressure of
1.21 MPa 175 psi.
[2.2.3 Check Valves 100 mm 4 in and Larger Diameter
Nonclogging swing check valve rated for not less than 175 psig working pressure capable of passing 76-mm 3-inch
diameter solids. Cast iron conforming to ASTM A 126. Buna-N disc and integral seat. Flanged ends conforming
to AWWA C110/A21.10.
]2.2.4 Identification Tags and Plates
Provide valves with tags or plates numbered and stamped for their usage. Use plates and tags of brass or nonferrous
material and mounted or attached to the valve.
2.2.5 Pipe Support
Use pipe support schedule 40 galvanized steel piping conforming to ASTM A 53/A 53M. Provide either ASME B16.3
or ASME B16.11 galvanized threaded fittings.
2.2.6 Miscellaneous Metals
Use stainless steel bolts, nuts, washers, anchors, and supports for installation of equipment.
2.2.7 Quick Disconnect System with Hydraulic Sealing Flange
Use quick disconnect system consisting of a steel base plate for supporting the pumps, a hydraulic sealing flange,
pump guide rails and the discharge pipe supports. Use two guide rails of galvanized steel in accordance with
ASTM A 123/A 123M. Provide a steel lifting chain for raising and lowering the pump in the basin. Build guides
onto pump housing to fit the guide post to assure perfect alignment between pump and guide rails.
2.2.8 Wet Well Vent
Galvanized ASTM A 53/A 53M pipe with insect screening.
2.3 SUBMERSIBLE SEWAGE GRINDER PUMPS
Provide submersible sewage pumps with grinder units as shown on the drawings. Provide submersible, centrifugal
sewage pumps and grinder units capable of grinding all materials found in normal domestic sewage, including plastics,
rubber, sanitary napkins, disposable diapers, and wooden articles into a finely ground slurry with particle dimensions
no greater than [6][____] mm [1/4][____] inch. Pump capacity and motor characteristics as [indicated][specified].
Design pump to operate in a submerged or partially submerged condition. Provide an integral sliding guide bracket
and two guide bars capable of supporting the entire weight of the pumping unit.
2.3.1 Casing
Provide hard, close-grained cast iron casing which is free from blow holes, porosity, hard spots, shrinkage defects,
cracks, and other injurious defects. Design casings to permit replacement of wearing parts. Design passageways
to permit smooth flow of sewage and to be free of sharp turns and projections.
2.3.2 Impeller
Provide non-clogging type cast-iron[, or bronze] impeller. Make impeller with smooth surfaces, free flowing
with the necessary clearance to permit objects in the sewage to pass. Fit and key, spline, or thread impeller
on shaft, and lock in such manner that lateral movement will be prevented and reverse rotation will not cause
loosening.
2.3.3 Shaft and Shaft Seals
Provide shaft of stainless steel. Provide mechanical seal of double carbon and ceramic construction with mating
surfaces lapped to a flatness tolerance of one light band. Hold rotating ceramics in mating position with stationary
carbons by a stainless steel spring. Oil lubricate bearings.
2.3.4 Bearings
Provide heavy duty ball thrust bearing or roller type bearing of adequate size to withstand imposed loads. Oil
lubricate bearings.
2.3.5 Pump and Motor
Use pump and motor assembled on a single stainless steel shaft in a heavy duty cast-iron shell. Use free standing
pump support legs of cast-iron providing enough clearance for the solids to get into the grinder.
2.4 PUMP MOTOR
Provide submersible sewage pumps in wet well NEMA MG 1, [____] RPM, [____] volt, [_____] phase, and [_____] Hz
cycle and for submersible pumps. Motor horsepower must be not less than pump horsepower at any point on the
pump performance curve. Fit motors with lifting "eyes" capable of supporting entire weight of pump and motor.
2.5 PUMP CONTROL SYSTEM
Provide a sealed mercury float switch control system as indicated. Automatically alternate operation from one
pump to the other and start second pump in the event first pump cannot handle incoming flow. Provide manual
"on-off" switch for each pump. Provide independent adjustable high and low water level switches. Provide floats,
supports, and alarm. Metal parts, if used, must be of bronze or equivalent corrosion resistant material.
2.5.1 Float Assembly Description
Use a direct acting float switch consisting of a normally-open mercury switch enclosed in a float. Use pipe
mounted float assembly. Use float molded of rigid high-density polyurethane foam, color-coded and coated with
a durable, water and corrosion-resistant jacket of clear urethane. Provide connecting cable and support pole
in accordance with manufacturers recommendations. Provide a cast aluminum NEMA Type 4 junction box to connect
float assembly. Use box with a gasketed cover with tapped float fitting and conduit entrance pipe threaded opening.
Mount floats at fixed elevations as shown. Use floats designed to tilt and operate their switches causing sequential
turn-on turn-off of the pump, when the liquid level being sensed rises or falls past the float.
2.5.2 Alternator
Provide an alternator control switch to operate in connection with each float. Use alternator control switch
to alternate the operation of the pumps and operate both pumps if the water level rises above the second high
water level. Incorporate time delay function and devices in the alternator controls such that both sewage pumps
cannot be started simultaneously for an adjustable period of 10 to 120 seconds after shutdown. Use delay function
designed to operate in any condition of start-up in either normal or emergency operational mode.
2.5.3 Sewage Pump Alarm and Control Panel
Enclose alarm panel in NEMA IV enclosure and with a flashing red light with long life bulb in guarded enclosure
and 15 mm 6 inch diameter horn. Horn must emit 120 DB at 3 meters 10 feet. Power alarm horn and light from
12V DC power supply with battery backup. Provide a rechargeable battery rated to power both the horn and light
for a minimum of two hours upon loss of main power. Provide circuitry to automatically recharge the battery after
main power is restored. Full charge of battery must take no more than 20 hours. Use panel swith power on light,
push to test button for horn and light and push to silence button for horn and light with automatic reset for
next alarm. Use alarm designed to activate under the following conditions:
a. High liquid level as sensed by float switch
b. Loss of main power
c. No flow light as sensed by limit switch on the check valve
2.5.4 Electrical Requirements
Furnish motors with their respective pieces of equipment. Furnish internal wiring for components of packaged
equipment as an integral part of the equipment. Provide power wiring and conduit for field installed equipment.
2.5.5 Electric Motor
Use hermetically sealed electric motor. Seal the power cable inside the motor end bell. Provide a neoprene
covered cable with a flexible metal cover over it for its full length.
2.6 UNDERGROUND EQUIPMENT ENCLOSURE
2.6.1 Access Hatch Cover
Provide [aluminum][_____] access hatch cover as indicated. Include lifting mechanism, automatic hold open arm,
slam lock with handle, and flush lift handle with red vinyl grip. Use automatic hold open arm that locks in
the 90 degree position. Use cover that is 6 mm 1/4 inch diamond plate with 6 mm 1/4 inch channel frame and continuous
anchor flange. USe access hatch cover capable of withstanding a live load of 1500 kg/sq. meter 300 lbs./sq.
ft. Provide stainless steel cylinder lock with two keys per lock. Key all the locks the same.
2.6.2 Wet Well[ and Valve Vault]
Provide [fiberglass reinforced polyester resin basin][concrete wet well [and Valve Vault]] with inside diameter
[as indicated][of [_____] mm [____] inch].[ Precast structures may be provided in lieu of cast-in-place structures.]
[2.6.2.1 Cast-In-Place Concrete Structures
Provide wet well[ and valve vault] with a compressive strength of 25 MPa 3000 psi at 28 days as specified in
Section 03 30 00 CAST-IN-PLACE CONCRETE.
][2.6.2.2 Precast Concrete Structures
ASTM C 478, ASTM C 478M, except as specified herein. Provide precast concrete structures with a compressive
strength of 30 MPa 4000 psi at 28 days and an air entrainment of 6 percent, plus, or minus 2 percent and a minimum
wall thickness of 125 mm 5 inches. ASTM A 615/A 615M reinforcing bars. ASTM C 443MASTM C 443 or AASHTO M 198
, Type B gaskets for joint connections. Use monolithic base and first riser.
]2.6.3 Wet Well Base Material
Provide crushed stone as indicated and specified in Section 31 00 00 EARTHWORK. Provide polyethylene vapor barrier
as indicated and specified in Section 03 30 00 CAST-IN-PLACE CONCRETE.
PART 3 EXECUTION
3.1 INSTALLATION
Provide pump station in accordance with drawings and requirements of the respective equipment manufacturers.
Dampen and isolate equipment vibration.
3.1.1 Installation of Ductile-Iron Pressure Lines
Unless otherwise specified, install pipe and fittings in accordance with paragraph entitled, "General Requirements
for Installation of Pipelines" of Section 33 30 00 SANITARY SEWERS, and with the requirements of AWWA C600 for
pipe installation, joint assembly, and valve-and-fitting installation.
a. Make flanged joint with gaskets, bolts, and nuts specified for this type joint. Make flanged
joints up tight, taking care to avoid undue strain on flanges, fittings, and other accessories.
Align bolt holes for each flanged joint. Use size bolts for the bolt holes; use of undersized
bolts to make up for misalignment of bolt holes or for any other purpose will not not be permitted.
Do not allow adjoining flange faces to be out of parallel to such degree that the flanged joint
cannot be made watertight without overstraining the flange.
3.1.2 Installation of PVC Plastic Pressure Pipe and Fittings
Unless otherwise specified, install pipe and fittings in accordance with paragraph entitled "General Requirements
for Installation of Pipelines" of this section and with the recommendations for pipe joint assembly and appurtenance
installation in AWWA M23, Chapter 7, "Installation."
a. Pipe Less than 100 mm 4 Inch Diameter:
(1) Make threaded joints by wrapping the male threads with joint tape or by applying an approved
thread lubricant, than threading the joining members together. Tighten joints with strap wrenches
that will not damage the pipe and fittings. Do not tighten joint more than 2 threads past hand-tight.
(2) Push-On Joints: Bevel ends of pipe for push-on joints to facilitate assembly. Mark pipe
to indicate when the pipe is fully seated. Lubricate gasket to prevent displacement. Exercise
care to ensure that the gasket remains in proper position in the bell or coupling while making
the joint.
(3) Solvent-weld joints: comply with the manufacturer's instructions.
3.1.3 Valves
Installation of Valves: Install gate valves conforming to AWWA C500 in accordance with AWWA C600 for valve-and-fitting
installation and with the recommendations of the Appendix ("Installation, Operation, and Maintenance of Gate
Valves") to AWWA C500. Install gate valves conforming to AWWA C509 in accordance with AWWA C600 for valve-and-fitting
installation and with the recommendations of the Appendix ("Installation, Operation, and Maintenance of Gate
Valves") to AWWA C509. [Install check valves in accordance with the applicable requirements of AWWA C600 for
valve-and-fitting installation [, except as otherwise indicated].][ Make and assemble joints to gate valves
[and check valves] as specified for making and assembling the same type joints between pipe and fittings.]
3.1.4 Steel Piping
Install steel piping in accordance with ASME B31.3. Use PTFE pipe thread paste or PTFE powder and oil for jointing
compound for pipe threads.
3.1.5 Force Main
Provide in accordance with Section 33 30 00 SANITARY SEWERS.
3.1.6 Equipment Installation
Install equipment in accordance with these specifications and the manufacturer's installation instructions.
Grout equipment mounted on concrete foundations before installing piping. Install piping to avoid imposing stress
on any equipment. Match flanges accurately before securing bolts.
3.2 FIELD TESTS AND INSPECTIONS
Perform all field tests, and provide all labor, equipment, and incidentals required for testing, except that
water and electric power needed for field tests will be furnished as set forth in Division 01. Produce evidence,
when required, that any item of work has been constructed in accordance with contract requirements. Allow concrete
to cure a minimum of 5 days before testing any section of piping where concrete thrust blocks have been provided.
3.2.1 Testing Procedure
Test piping in accordance with the Section 33 30 00 SANITARY SEWERS. Test in operation all equipment to demonstrate
compliance with the contract requirements.
3.2.2 Sewage Grinder PumpLift Station
Test pumps and controls, in operation, under design conditions to insure proper operation of all equipment.
Provide all appliances, materials, water, and equipment for testing, and bear all expenses in connection with
the testing. Conduct testing after all equipment is properly installed, electrical services and piping are installed,
liquid is flowing, and the pump station is ready for operation. Correct all defects discovered to the satisfaction
of the Contracting Officer, and all tests repeated, at the expense of the Contractor, until the equipment is
in proper working order.