33 30 00.pdf

PORTMONPIICT5 PORT MONMOUTH PHASE II, CONTRACT 5

Amendment 0007

SECTION 33 30 00

SANITARY SEWERS

04/08

PART 1 GENERAL

1.1 SUMMARY

1.1.1 Sanitary Sewer Gravity Pipeline

Provide mains of 8 and 30 inches lines of ductile-iron pipe. Provide new and modify existing exterior sanitary gravity sewer piping and appurtenances. Provide each system complete and ready for operation. The exterior sanitary gravity sewer system includes equipment, materials, installation, and workmanship as specified herein.

1.1.2 USACE Project

The construction required herein shall include appurtenant structures and building sewers to points of connectionas shown on the plans. Replace damaged material and redo unacceptable work at no additional cost to the Government. Backfilling shall be accomplished after inspection by the Contracting Officer. Before, during, and after installation, ductile iron pipe and fittings shall be protected from any environment that would result in damage or deterioration to the material. Keep a copy of the manufacturer's instructions available at the construction site at all times and shall follow these instructions unless directed otherwise by the Contracting Officer. Solvents, solvent compounds, lubricants, elastomeric gaskets, and any similar materials required to install the pipe shall be stored in accordance with the manufacturer's recommendation and shall be discarded if the storage period exceeds the recommended shelf life.

Solvents in use shall be discarded when the recommended pot life is exceeded.

1.2 REFERENCES

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 WATER WORKS ASSOCIATION (AWWA)

AWWA C110/A21.10 (2012) Ductile-Iron and Gray-Iron Fittings for Water

AWWA C111/A21.11 (2012) Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and Fittings

AWWA C153/A21.53 (2011) Ductile-Iron Compact Fittings for Water Service

AWWA C600 (2010) Installation of Ductile-Iron Water Mains and Their Appurtenances

SECTION 33 30 00 Page 1 06/02/22

ASTM INTERNATIONAL (ASTM)

ASTM A123/A123M (2017) Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

ASTM A536 (1984; R 2014) Standard Specification for Ductile Iron Castings

ASTM A746 (2009; R 2014) Standard Specification for Ductile Iron Gravity Sewer Pipe

ASTM C150/C150M (2020) Standard Specification for Portland Cement

ASTM C270 (2014a) Standard Specification for Mortar for Unit Masonry

ASTM C443 (2011) Standard Specification for Joints for Concrete Pipe and Manholes, Using Rubber Gaskets

ASTM C478 (2018) Standard Specification for Circular Precast Reinforced Concrete Manhole Sections

ASTM C923 (2008; R 2013; E 2016) Standard Specification for Resilient Connectors Between Reinforced Concrete Manhole Structures, Pipes and Laterals

ASTM C924 (2002; R 2009) Testing Concrete Pipe Sewer Lines by Low-Pressure Air Test Method

ASTM C94/C94M (2021) Standard Specification for Ready-Mixed Concrete

ASTM C969 (2019) Standard Practice for Infiltration and Exfiltration Acceptance Testing of Installed Precast Concrete Pipe Sewer Lines

ASTM C990 (2009; R 2014) Standard Specification for Joints for Concrete Pipe, Manholes and Precast Box Sections Using Preformed Flexible Joint Sealants

ASTM D2412 (2011) Determination of External Loading Characteristics of Plastic Pipe by Parallel-Plate Loading

ASTM D4101 (2014) Standard Specification for Polypropylene Injection and Extrusion Materials

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

29 CFR 1910.27 Fixed Ladders

SECTION 33 30 00 Page 2

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are 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-01 Preconstruction Submittals

Existing Conditions

SD-02 Shop Drawings

Drawings Precast concrete manhole Metal items Frames, covers, and gratings

SD-03 Product Data

Pipeline materials

SD-06 Test Reports

Reports

SD-07 Certificates

Portland Cement Gaskets

1.4 QUALITY ASSURANCE

1.4.1 Installer Qualifications

Install specified materials by a licensed underground utility Contractor licensed for such work in the state where the work is to be performed.

Installing Contractor's License shall be current and be state certified or state registered.

1.4.2 Drawings

a. Submit As-Built Drawings for the complete sanitary sewer system showing complete detail with all dimensions, both above and below grade, including invert elevation.

1.5 DELIVERY, STORAGE, AND HANDLING

1.5.1 Delivery and Storage

1.5.1.1 Piping

Inspect materials delivered to site for damage; store with minimum of handling. Store materials on site in enclosures or under protective coverings. Store rubber gaskets under cover out of direct sunlight. Do not store materials directly on the ground. Keep inside of pipes and fittings free of dirt and debris.

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1.5.1.2 Metal Items

Check upon arrival; identify and segregate as to types, functions, and sizes. Store off the ground in a manner affording easy accessibility and not causing excessive rusting or coating with grease or other objectionable materials.

1.5.1.3 Cement, Aggregate, and Reinforcement

As specified in Section 03 30 00 CAST-IN-PLACE CONCRETE.

1.5.2 Handling

Handle pipe, fittings, and other accessories in such manner as to ensure delivery to the trench in sound undamaged condition. Take special care not to damage linings of pipe and fittings; if lining is damaged, make satisfactory repairs. Carry, do not drag, pipe to trench.

1.6 PROJECT/SITE CONDITIONS

Submit drawings of existing conditions , after a thorough inspection of the area in the presence of the Contracting Officer. Details shall include the environmental conditions of the site and adjacent areas. Submit copies of the records for verification before starting work.

PART 2 PRODUCTS

2.1 PIPELINE MATERIALS

Pipe shall conform to the respective specifications and other requirements specified below. Submit manufacturer's standard drawings or catalog cuts.

2.1.1 Ductile Iron Gravity Sewer Pipe and Associated Fittings

2.1.1.1 Ductile Iron Gravity Pipe and Fittings

Ductile iron pipe shall conform to ASTM A746, Thickness Class 56. Fittings shall conform to AWWA C110/A21.10 or AWWA C153/A21.53 . Fittings with push-on joint ends shall conform to the same requirements as fittings with mechanical-joint ends, except that the bell design shall be modified, as approved by the Contracting Officer, for push-on joint. Fittings shall have strength at least equivalent to that of the pipe. Ends of pipe and fittings shall be suitable for the joints specified hereinafter. Pipe and fittings shall have ceramic epoxy (Protecto 401, or approved equal) lining conforming, standard thickness.

2.1.1.2 Ductile Iron Gravity Joints and Jointing Materials

Pipe and fittings shall have push-on joints, except as otherwise specified in this paragraph. Push-on joint pipe ends and fitting ends, gaskets, and lubricant for joint assembly shall conform to AWWA C111/A21.11 .

2.2 CONCRETE MATERIALS

2.2.1 Cement Mortar

Cement mortar shall conform to ASTM C270, Type M with Type II cement.

SECTION 33 30 00 Page 4

2.2.2 Portland Cement

Submit certificates of compliance stating the type of cement used in manufacture of concrete pipe, fittings and precast manholes. Portland cement shall conform to ASTM C150/C150M, Type II for concrete used in manholes and type optional with the Contractor for cement used in concrete cradle, concrete encasement, and thrust blocking.

2.2.3 Portland Cement Concrete

Portland cement concrete shall conform to ASTM C94/C94M, compressive strength of 4000 psi at 28 days, except for concrete cradle and encasement or concrete blocks for manholes. Concrete used for cradle and encasement shall have a compressive strength of 3000 psi minimum at 28 days.

Concrete in place shall be protected from freezing and moisture loss for 7 days.

2.3 MISCELLANEOUS MATERIALS

2.3.1 Precast Concrete Manholes

Precast concrete manhole and rectangular chamber risers, base sections, and tops shall conform to ASTM C478.

2.3.2 Gaskets and Connectors

Gaskets for joints between manhole sections shall conform to ASTM C443.

Resilient connectors for making joints between manhole and pipes entering manhole shall conform to ASTM C923 or ASTM C990 . Refer to TOMSA detail sheet.

2.3.3 Metal Items

2.3.3.1 Frames, Covers, and Gratings for Manholes

Submit certification on the ability of frame and cover to carry the imposed live load. Frame and cover must be cast ductile iron, ASTM A536, Grade 65-45-12. Frames and covers must be of shape indicated on the plans. Size must be for 24 inch opening. The words "Sanitary Sewer" shall be stamped or cast into covers so that it is plainly visible.

2.3.3.2 Manhole Steps

Zinc-coated steel conforming to 29 CFR 1910.27 . As an option, plastic or rubber coating pressure-molded to the steel may be used. Plastic coating shall conform to ASTM D4101, copolymer polypropylene. Rubber shall conform to ASTM C443, except shore A durometer hardness shall be 70 plus or minus 5. Aluminum steps or rungs will not be permitted. Steps are not required in manholes less than 4 feet deep.

2.3.3.3 Manhole Ladders

A steel ladder shall be provided where the depth of a manhole exceeds 12 feet . The ladder shall not be less than 16 inches in width, with 3/4 inch diameter rungs spaced 12 inches apart. The two stringers shall be a minimum 3/8 inch thick and 2 inches wide. Ladders and inserts shall be galvanized after fabrication in conformance with ASTM A123/A123M . Refer to TOMSA detail sheet.

SECTION 33 30 00 Page 5

2.4 REPORTS

Compaction and density test shall be in accordance with Section 31 00 00 EARTHWORK. Submit Test Reports. Submit Inspection Reports for daily activities during the installation of the sanitary system. Information in the report shall be detailed enough to describe location of work and amount of pipe laid in place, measured in linear feet .

PART 3 EXECUTION

3.1 INSTALLATION OF PIPELINES AND APPURTENANT CONSTRUCTION

3.1.1 General Requirements for Installation of Pipelines

These general requirements apply except where specific exception is made in the following paragraphs entitled "Special Requirements."

3.1.1.1 Location

The work covered by this section shall be as indicated on the plans.

Install pressure sewer lines beneath water lines only, with the top of the sewer line being at least 2 feet below bottom of water line. Where sanitary sewer lines pass above water lines, encase sewer in concrete for a distance of 10 feet on each side of the crossing, or substitute rubber-gasketed pressure pipe for the pipe being used for the same distance. Where sanitary sewer lines pass below water lines, lay pipe so that no joint in the sewer line will be closer than 3 feet , horizontal distance, to the water line.

3.1.1.1.1 Sanitary Piping Installation Parallel with Water Line

3.1.1.1.1.1 Normal Conditions

Sanitary piping or manholes shall be laid at least 10 feet horizontally from a water line whenever possible. The distance shall be measured edge-to-edge.

3.1.1.1.1.2 Unusual Conditions

When local conditions prevent a horizontal separation of 10 feet , the sanitary piping or manhole may be laid closer to a water line provided that:

a. The top (crown) of the sanitary piping shall be at least 18 inches below the bottom (invert) of the water main.

b. Where this vertical separation cannot be obtained, the sanitary piping shall be constructed of AWWA-approved ductile iron water pipe pressure tested in place without leakage prior to backfilling.

c. The sewer manhole shall be of watertight construction and tested in place.

3.1.1.1.2 Sanitary Sewer Manholes

No water piping shall pass through or come in contact with any part of a sanitary sewer manhole.

SECTION 33 30 00 Page 6

3.1.1.2 Earthwork

Perform earthwork operations in accordance with Section 31 00 00 EARTHWORK.

3.1.1.3 Pipe Laying and Jointing

Inspect each pipe and fitting before and after installation; replace those found defective and remove from site. Provide proper facilities for lowering sections of pipe into trenches. Lay nonpressure pipe with the bell ends in the upgrade direction. Adjust spigots in bells to give a uniform space all around. Blocking or wedging between bells and spigots will not be permitted. Replace by one of the proper dimensions, pipe or fittings that do not allow sufficient space for installation of joint material. At the end of each work day, close open ends of pipe temporarily with wood blocks or bulkheads. Provide batterboards not more than 25 feet apart in trenches for checking and ensuring that pipe invert elevations are as indicated. Laser beam method may be used in lieu of batterboards for the same purpose. Branch connections shall be made by use of regular fittings or solvent cemented saddles as approved.

3.1.1.4 Connections to Existing Lines

Obtain approval from the Contracting Officer before making connection to existing line. Conduct work so that there is minimum interruption of service on existing line.

3.1.2 Special Requirements

3.1.2.1 Installation of Ductile Iron Gravity Sewer Pipe

Unless otherwise specified, install pipe and associated fittings in accordance with paragraph entitled "General Requirements for Installation of Pipelines" of this section and with the requirements of AWWA C600 for pipe installation and joint assembly.

a. Make push-on joints with the gaskets and lubricant specified for this type joint and assemble in accordance with the applicable requirements of AWWA C600 for joint assembly. Where sanitary sewers cross new or existing structures they shall be sleeved. Under this Contract, the sanitary sewer shall pass through a sheetpile cut-off wall as indicated on the plans and details. The sleeve shall be welded to the steel sheet pile as shown in the plans. The sewer pipe shall be centered in the sleeve using spacers and the ends of the sleeve shall be water tight through the use of manufacutred seals.

3.1.3 Concrete Work

Cast-in-place concrete is included in Section 03 30 00 CAST-IN-PLACE

CONCRETE.

3.1.4 Manhole Construction

Construct base slab of cast-in-place concrete or use precast concrete base sections. Make inverts in cast-in-place concrete and precast concrete bases with a smooth-surfaced semi-circular bottom conforming to the inside contour of the adjacent sewer sections. For changes in direction of the sewer and entering branches into the manhole, make a circular curve in the manhole invert of as large a radius as manhole size will permit. For cast-in-place concrete construction, either pour bottom slabs and walls

SECTION 33 30 00 Page 7 integrally or key and bond walls to bottom slab. No parging will be permitted on interior manhole walls. For precast concrete construction, make joints between manhole sections with the gaskets specified for this purpose; install in the manner specified for installing joints in concrete piping. Parging will not be required for precast concrete manholes.

Cast-in-place concrete work shall be in accordance with the requirements specified under paragraph entitled "Concrete Work" of this section. Make joints between concrete manholes and pipes entering manholes with the resilient connectors specified for this purpose; install in accordance with the recommendations of the connector manufacturer. Where a new manhole is constructed on an existing line, remove existing pipe as necessary to construct the manhole. Cut existing pipe so that pipe ends are approximately flush with the interior face of manhole wall, but not protruding into the manhole. Use resilient connectors as previously specified for pipe connectors to concrete manholes.

3.1.5 Miscellaneous Construction and Installation

3.1.5.1 Connecting to Existing Manholes

Pipe connections to existing manholes shall be made so that finish work will conform as nearly as practicable to the applicable requirements specified for new manholes, including all necessary concrete work, cutting, and shaping. The connection shall be centered on the manhole.

Holes for the new pipe shall be of sufficient diameter to allow packing cement mortar around the entire periphery of the pipe but no larger than

1.5 times the diameter of the pipe. Cutting the manhole shall be done in a manner that will cause the least damage to the walls.

3.1.5.2 Sewer By-Pass

In accordance with Appendix A for TOMSA (Township of Middletown Sewerage Authority) by-pass specification Section 15060, at the end of this section.

3.1.5.3 Pipe Crossing

Pipes crossing any permanent flood control features such as walls, concrete etc. shall pass through a steel pipe sleeve. Both ends of the sleeve shall be made watertight by installing Link Seals. The size of the sleeve shall be such the pipe can pass through without damage and inaccordance with Link Seal manufacture recommendations. The pipe shall be hold centered in the sleeve by use of pipe spacers. The sleeve shall be encased in concrete as shown on the plans

3.1.5.4 Polyethylene Encasement

All exposed sanitary pipe and fitting under this Contract shall be wrapped in polyethylene encasement. The encasement shall confirm to ANSI/AWWA C105/A21.5, Polyethylene Encasements for Ductile Iron Pipe System. Where the proposed pipe meets the existing pipe, extend the polyethylene encasement 12 inches over the existing pipe.

3.2 FIELD QUALITY CONTROL

3.2.1 Field Tests and Inspections

The Contracting Officer will conduct field inspections and witness field tests specified in this section. Perform field tests and provide labor, equipment, and incidentals required for testing, except that water and

SECTION 33 30 00 Page 8 electric power needed for field tests will be furnished. Be able to produce evidence, when required, that each item of work has been constructed in accordance with the drawings and specifications.

3.2.2 Tests for Nonpressure Lines

Check each straight run of pipeline for gross deficiencies by holding a light in a manhole; it shall show a practically full circle of light through the pipeline when viewed from the adjoining end of line. When pressure piping is used in a nonpressure line for nonpressure use, test this piping as specified for nonpressure pipe.

3.2.2.1 Leakage Tests

Test lines for zero percent leakage by either infiltration tests or exfiltration tests, or by low-pressure air tests at 150 psi . The leakage test shall confirm to AWWA C600. Prior to testing for leakage, backfill trench up to at least lower half of pipe. When necessary to prevent pipeline movement during testing, place additional backfill around pipe sufficient to prevent movement, but leaving joints uncovered to permit inspection. When leakage or pressure drop exceeds the allowable amount specified, make satisfactory correction and retest pipeline section in the same manner. Correct visible leaks regardless of leakage test results.

3.2.2.1.1 Infiltration Tests and Exfiltration Tests

Perform these tests for sewer lines made of the specified materials, not only concrete, in accordance with ASTM C969. Make calculations in accordance with the Appendix to ASTM C969.

3.2.2.1.2 Low-Pressure Air Tests

Perform tests as follows:

3.2.2.1.2.1 Ductile-Iron Pipelines

Test in accordance with the applicable requirements of ASTM C924.

Allowable pressure drop shall be as given in ASTM C924. Make calculations in accordance with the Appendix to ASTM C924.

3.2.2.2 Deflection Testing

Perform a deflection test on entire length of installed plastic pipeline on completion of work adjacent to and over the pipeline, including leakage tests, backfilling, placement of fill, grading, paving, concreting, and any other superimposed loads determined in accordance with ASTM D2412.

Deflection of pipe in the installed pipeline under external loads shall not exceed 4.5 percent of the average inside diameter of pipe. Determine whether the allowable deflection has been exceeded by use of a pull-through device or a deflection measuring device.

3.2.2.2.1 Pull-Through Device

This device shall be a spherical, spheroidal, or elliptical ball, a cylinder, or circular sections fused to a common shaft. Circular sections shall be so spaced on the shaft that distance from external faces of front and back sections will equal or exceed diameter of the circular section.

Pull-through device may also be of a design promulgated by the Uni-Bell Plastic Pipe Association, provided the device meets the applicable

SECTION 33 30 00 Page 9 requirements specified in this paragraph, including those for diameter of the device, and that the mandrel has a minimum of 9 arms. Ball, cylinder, or circular sections shall conform to the following:

a. A diameter, or minor diameter as applicable, of 95 percent of the average inside diameter of the pipe; tolerance of plus 0.5 percent will be permitted.

b. Homogeneous material throughout, shall have a density greater than 1.0 as related to water at 39.2 degrees F , and shall have a surface Brinell hardness of not less than 150.

c. Center bored and through-bolted with a 1/4 inch minimum diameter steel shaft having a yield strength of not less than 70,000 psi , with eyes or loops at each end for attaching pulling cables.

d. Each eye or loop shall be suitably backed with a flange or heavy washer such that a pull exerted on opposite end of shaft will produce compression throughout remote end.

3.2.2.2.2 Deflection Measuring Device

Sensitive to 1.0 percent of the diameter of the pipe being tested and shall be accurate to 1.0 percent of the indicated dimension. Deflection measuring device shall be approved prior to use.

3.2.2.2.3 Pull-Through Device Procedure

Pass the pull-through device through each run of pipe, either by pulling it through or flushing it through with water. If the device fails to pass freely through a pipe run, replace pipe which has the excessive deflection and completely retest in same manner and under same conditions.

3.2.2.2.4 Deflection measuring device procedure

Measure deflections through each run of installed pipe. If deflection readings in excess of 4.5 percent of average inside diameter of pipe are obtained, retest pipe by a run from the opposite direction. If retest continues to show a deflection in excess of 4.5 percent of average inside diameter of pipe, replace pipe which has excessive deflection and completely retest in same manner and under same conditions.

3.2.3 Movement of Construction Machinery

When operating heavy equipment near the alignment of piping, displacement of or injury to the piping shall be avoided. Movement of construction machinery over piping at any stage of construction shall be at the Contractor's risk. Any damaged pipe shall be repaired or replaced at no additional cost to the Government.

3.2.4 Video Documentation for Township of Middletown Sewerage Authority

Video equipment shall include a multi-angle television camera capable of scanning 360-degrees circumference and 270-degrees on horizontal axis to televise sewer lines 8-inch diameter or larger. The purpose of the rotating head camera is to view all sewer components and manhole structures, to locate all defects and questionable problem areas. Focal distance shall be adjustable through a range of one (1) inch to infinity.

The television camera shall be color format and specifically designed and

SECTION 33 30 00 Page 10 constructed to operate inside systems. The television camera operate in sewers environments and 100% humidity conditions. Lighting and camera quality shall produce a clear, in focus picture of the entire periphery of the pipe for a minimum distance of six feet. Other required equipment are television monitor, cables, power sources, lights, and other equipment necessary to do the work.

For locations where sewage debris may be located between manholes, the Contractor shall provide high pressure equipment specifically designed, and constructed for sewer cleaning various sized pipes. Solids and debris resulting from the cleaning operation shall be collected and removed from the downstream manhole. The sewage debris removed from cleaning operations shall be transported and disposed at a land fill licensed for sewage disposal. The Contractor shall submit documentation of the sewage debris disposal.

The camera shall be moved through the pipeline in either direction at a uniform rate, stopping when necessary to ensure proper documentation of the sewer's condition. In no case shall the television camera be pulled or propelled at a speed greater than thirty (30) feet per minute. The camera height shall be adjustable such that the camera lens can be centered in the pipe being inspected. The equipment shall have an accurate footage counter, which shall display on the monitor the exact distance of the camera from the centerline of the starting manhole. Unless otherwise approved by the Contracting Officer, footage measurements shall begin at the centerline of the upstream manhole.

The date, identification of sewer reach(es) by upstream and downstream manhole numbers, and manhole to manhole footage shall be displayed on the video data view at all times. Each recording shall be permanently labeled with the Contractor's name, date televised, project name, street name(s), identification of the sewer reach(es) inspected, and run number. If the recordings are of such poor quality that the Contracting Officer is unable to evaluate the condition of the sewer, locate sewer components, or verify conditions, the Contractor shall re-televise the sanitary sewer and provide a new recording of good quality at no additional cost to the Government. Video inspection logs furnished by the Contractor shall be typed or printed as a computerized report. A sample REPORT FORM and format is attached at the end of this Section. Data of significance includes the locations of sewer components, types of upstream and downstream manhole structures, and any pipe condition or defect. Video inspection recordings shall be DVD format.

Two copies of video inspection recordings shall be submitted to the Contracting Officer. One copy be submitted to Township of Middletown Sewerage Authority for their review and comment. All departures of approved designed works shall be subject to the approval of the Township of Middletown Sewerage Authority. Any work performed to secure approval shall be performed at no additional cost to the Government.

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BY-PASS PUMPING AND MAINTENANCE OF SEWER SERVICE 15060 - 1

SECTION 15060

BY-PASS PUMPING AND MAINTENANCE OF SEWER SERVICE

PART 1 - GENERAL

1.01 WORK INCLUDED

A. The work of this item consists of the installation and maintenance of by-pass pumping and maintenance of continuous sewer flow in the existing sanitary system.

B. The sanitary sewer system is owned and operated by the Township of Middletown

Sewerage Authority (TOMSA). At no point shall the Contractor cause the discharge of sanitary sewage into waterways or on land. All such discharges shall be reported to

TOMSA immediately and the Contractor shall be responsible for addressing the discharge to TOMSA’s satisfaction at no cost to TOMSA.

C. The Contractor shall provide, install and test the bypass pumping system as indicated in the contract documents including all labor, equipment and material for by-pass operation and all other measures necessary for the by-pass system and necessary to maintain sanitary sewer flow without interruptions. The Contractor shall be able to respond and arrive at the site within one hour of notification.

D. Bypass pumping shall be provided during:

1. Disruption of sanitary sewer flow through the existing sanitary sewer system.

2. As determined by the Township of Middletown Sewerage Authority

1.02 RELATED WORK

A. Provide temporary by-pass for the relocation of the 8” sanitary sewer along Old Port

Monmouth road.

1.03 SYSTEM DESCRIPTION

A. GENERAL

1. The Contractor shall provide a the bypass pumping system for the purpose of providing sufficient bypass pumping capacity as required by the staging plan throughout the duration of the project.

2. The bypass pumping system, when in operation, shall convey raw wastewater from the existing upstream manhole to a manhole located downstream of the proposed work site. Additional bypass pumping may be required for other

Appendix A

BY-PASS PUMPING AND MAINTENANCE OF SEWER SERVICE 15060 - 2

construction activities. All bypass pumping activities shall be reviewed and approved by the COR (Contracting Office Representative).

3. The bypass pumping system provided by the Contractor shall include all required supervision, alarms, flow control devices, materials, labor, and equipment necessary to operate and maintain temporary bypass pumping system.

4. The design, installation, operation, and maintenance of the temporary bypass pumping system shall be the Contractor’s responsibility. The Contractor shall be responsible for the security of the bypass system and the safety of people in the area while the system is deployed. The Contractor shall provide and maintain adequate signage and barriers.

5. The Contractor shall employ the services of a qualified vendor experienced in the design and operation of reliable temporary bypass pumping systems.

6. During the operation of the bypass pumping system, the Contractor shall not be permitted to stop or impede the flow of wastewater under any circumstance.

B. DESIGN CONDITIONS

1. Pumps operating conditions shall be as required by the Contractor’s staging plan.

2. Pumps shall have the capacity, under all conditions encountered on this project, to pump sewage.

3. When by-passing, the Contractor’s pump shall be of sufficient size to convey flow without surcharging the sanitary sewer system.

4. The pump shall be capable of pumping at a rate of 2.5 cfs.

C. SYSTEM OPERATION

1. The bypass pumping system shall provide flow capacity as noted in Part B above and shall be activated to bypass the section of sanitary sewer as noted in Part A.

2. The Contractor shall provide a means of annunciating shutdown or failure of pumping system such that his personnel on-site are made aware of the need to activate the bypass pumping system and are afforded adequate time to activate the system such that the flow of wastewater is not interrupted and such that there are no spills or leakages of wastewater.

BY-PASS PUMPING AND MAINTENANCE OF SEWER SERVICE 15060 - 3

3. The Contractor shall provide for automatic activation of the bypass pumping system, however, provision of a system for automatic activation shall not preclude the Contractor from providing a means of annunciating pumping system shutdown or failure or from providing personnel on-site on a continuous basis to man the bypass pumping system as specified in Part 1.06 of this Specification.

1.04 QUALITY ASSURANCE

A. VENDOR’S QUALIFICATIONS

1. The vendor of the bypass pumping system shall have not less than five (5) years experience in the design and operation of bypass pumping systems of similar size and complexity.

2. The bypass pumping system shall meet the requirements of all codes and regulatory agencies having jurisdiction.

1.05 SUBMITTALS

A. The Contractor shall prepare and submit to the COR specific detailed descriptions and hydraulic calculations prepared by a NJ licensed Professional Engineer of the proposed temporary bypass pumping system and other items listed below. In addition, the Contractor shall prepare and submit to the COR an emergency response plan for dealing with any emergency situation that may arise during the operation of the bypass pumping system.

B. Submit detailed plans and descriptions outlining all provisions and precautions to be taken regarding the handling of specified design wastewater flows. The submitted plans and descriptions shall be specific and complete and include such items as schedules, locations, elevations, elevations, capacities of equipment, materials, and all other incidental items necessary to ensure proper protection of the facilities and compliance with specified requirements.

C. Submit, as a minimum, the following:

1. Layout drawings indicating staging locations and sizes of pumping equipment and appurtenances, type and routing of suction and discharge piping, and connection of discharge piping to the system.

2. Sewer plugging method and types of plugs or bulkhead details (if and where applicable).

3. Number, size, material, location, and methods of installation of suction and

BY-PASS PUMPING AND MAINTENANCE OF SEWER SERVICE 15060 - 4

discharge piping and all valves and appurtenances.

4. Bypass pump sizes, capacities, number of each size pump to be on-site power requirements, performance curves, schematic control and power wiring diagrams, and all other relevant manufacturer’s literature.

5. Calculations for selection of bypass pump sizes, including static lift, friction losses, and flow velocities. This information signed and sealed by a NJ licensed Professional Engineer shall be noted for the record.

6. Methods of noise control for each pump as required to meet the requirements of Section 01561.

7. Details of temporary pipe supports and supporting structural calculations.

Calculations will be noted for the record.

8. Written description of Contractor’s plan to operate and maintain the bypass pumping system.

9. Written description of emergency response plan.

1.06 SPECIAL PROJECT PROCEDURES

A. Uninterrupted pumping of the entire wastewater flow to the to the site shall be maintained at all times. Therefore, all necessary equipment and manpower shall be provided to maintain a continuous and reliable pumping operation while the bypass pumping system is operating.

B. The Contractor shall be responsible for any spill of raw wastewater that occurs during the operation of the bypass pumping system, in addition to any and all fines imposed on the Owner by the NJDEP or any other regulatory agency. All wastewater spills shall be reported to the NJDEP by calling (609) 292-7172.

1.07 CONSTRUCTION COORDINATION AND SEQUENCING

A. The Contractor shall submit the construction staging plan for review and approval by the COR prior to proceeding with the by-pass pumping operation.

PART 2 - PRODUCTS

2.01 ACCEPTABLE MANUFACTURERS

A. Temporary bypass pumping system:

BY-PASS PUMPING AND MAINTENANCE OF SEWER SERVICE 15060 - 5

1. Godwin Pumps of America Inc., Bridgeport, NJ.

2. Pumping Services, Inc., Middlesex, NJ.

3. Or equal.

2.02 PUMPING EQUIPMENT

A. The pumps and drives shall be rated for continuous duty and shall be capable of pumping the specified flow range without surging, cavitation or vibration. The pump shall not overload the driver at any point on the pump operating curve. Rotating components shall be statically and dynamically balanced. The pump shall be suitable for use with raw unscreened sewage and trash. The pump shall be a self-contained unit, designed for temporary use. Dewatering type pumps will not be acceptable.

Contractor shall demonstrate that proposed bypass sewerage pumping system design is intended for this application.

B. All pumps shall be fully automatic units.

C. Contractor shall provide the necessary automatic start/stop controls for each pump.

C. The Contractor shall provide appropriate power source and fuel as required. The

Contractor has the option of installing portable generators to utilize electrical driven pumps.

D. All bypass pumps and motors shall be critically silenced.

2.03 PIPING

A. All temporary piping shall be constructed of rigid pipe with leak proof connections.

B. Adequate vents shall be installed to prevent excess stress on the pipeline and the possibility of collapse.

C. To prevent accidental spillage of flows, all discharge systems must be constructed of rigid pipe with positive, leak-proof connections. Piping material shall be as follows:

1. Heat fused high density polyethylene PE 3408 (black) SDR 26 pipe, minimum pressure rating 65 psi, as manufactured by Plexco, Franklin Park, IL or equal.

E. Provide all pipe supports and hangers necessary.

F. Provide check valves as necessary and valves to provide draining ability for the pipe

BY-PASS PUMPING AND MAINTENANCE OF SEWER SERVICE 15060 - 6

disassembly without any spills.

G. Provide all fittings and manifolds necessary for tie-in of the piping at the discharge locations. Restore tie-in locations to original condition upon removal of bypass pumping system.

H. Temporary piping shall be visually tested for leaks prior to bypass operation.

2.04 TEMPORARY PLUGS AND BULKHEAD

A. A sewer line plug or flow through plug shall assure watertight condition downstream from the plugged connection. The plugs shall be designed to allow all or any portion of the sewage flow be easily released.

B. Plugs shall be inflatable plugs constructed of specially treated industrial fabric and reinforced neoprene. Plugs shall be equipped with steel pull rings and aluminum end clamps.

C. All plugs shall be firmly attached to a satisfactory object at ground level by a steel cable to prevent loss of plug in the pipeline.

D. The Contractor shall provide details pertaining to the proposed bulkheading for the

COR review and approval.

2.05 INSTALLATION

A. Equipment specified in this section shall be installed by the Contractor in strict accordance with the manufacturer’s instructions and recommendations. Installation shall include furnishing oil, fuel, grease, lubricants, tools and spare parts that may be required to maintain the operation of the pump throughout the construction period, as recommended by the manufacturer. The Contractor shall be solely responsible for maintaining the temporary pumps and appurtenances. At the end of the construction period, the Contractor shall remove the pump and appurtenances.

B. The pumps are to be installed where required to by-pass the pipe installation operation. They shall be installed for temporary use only and shall be removed by the

Contractor prior to completion of the contract. The Contractor shall be solely responsible for proper operation of the complete pumping system, which includes pump, driver, controls and appropriate pipe connections during the construction period.

C. Adequate hoisting equipment for each pump and accessories shall be maintained on-site.

D. After the COR gives approval to remove the bypass pumping system, the Contractor

BY-PASS PUMPING AND MAINTENANCE OF SEWER SERVICE 15060 - 7

shall remove all components and provide proper drainage of all pipelines to prevent spillage of wastewater. The Contractor shall perform all site restoration work to the satisfaction of the COR.

E. The by-pass pumping equipment shall be removed and replaced at Contractor’s expense if unable to demonstrate to satisfaction of COR that by-pass units will perform the service required.

PART 3 - EXECUTION

3.01 BY-PASS PUMPING AND MAINTENANCE OF SEWER SERVICE

A. The Contractor shall maintain the sewage flow by pumping the sewage from the existing upstream manholes to the existing downstream manhole. The Contractor shall bulkhead the manhole and pump all sewage to the downstream discharge manhole. The Contractor shall furnish and operate pumps whenever sewage flow cannot be maintained through a continuous pipeline.

B. Pumps shall have the sufficient capacity, under all conditions encountered on this project, to pump sewage flow.

C. The Contractor shall make all provisions to install plugs as required for its by-pass operation.

D. The Contractor shall submit proposed by-pass pump performance curves and a written plan of every by-pass pumping operation (including relocation or addition of pipes) at least one week prior to the bypass to the COR for its approval for each system to be employed.

E. Under no circumstances shall sewage be allowed to flow on surface or into the trench or mix with the groundwater or to be diverted to drainage systems. The Contractor shall be responsible to pay any and all fines or claims resulting from discharge of sewage or backing up of sewage into local residences. Hoses and by-pass piping for the by-pass pumping operation shall be of sufficient quality and strength to withstand vehicular traffic passing over them. Hose by-pass couplings shall be tight and free from leaks. Any fitting, coupling, valve, pipe section that leaks shall be immediately removed and replaced by a watertight one.

F. The Contractor is advised that by-pass pumps will be installed within close proximity of existing residential neighborhood. The by-pass operation shall follow requirements of section 01561 - Noise Control.

G. No interruption of sewer service shall occur.

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H. Should emergency operation of the system be required, the Owner reserves the right to operate any by-pass equipment at the site, at Contractor’s expense until the

Contractor resumes its construction operation.

I. The Contractor shall have on hand a minimum of one (1) backup pump for every two operating bypass pumps. If only one bypass pump is being utilized, the Contractor shall have one backup pump. Backup pumps shall be of equal or greater capacity as the operating pumps.

J. The Contractor shall conduct his work so as to not cause excessive surcharging of the sewerage system and shall not cause damage to the sewerage system, its connections and/or apparatus. Any damage caused by the Contractor’s operations shall be repaired to the complete satisfaction of the COR at no additional cost to the Owner.

K. Ramps and/or steel sleeves to be installed at any road crossing of the above ground temporary pipe shall be submitted in form of shop drawings for COR’s review and approval prior to construction.

END OF SECTION 15060

1.5.2 Handling

1.6 PROJECT/SITE CONDITIONS

2.4 REPORTS

3.1.1.1.2 Sanitary Sewer Manholes