A22_Solicitation Attachment 0001 - SOW Savanna Street WWTP.pdf

Project: Savanna Street Wastewater Treatment Plant Improvements

SCOPE OF WORK

1. General, Location and Existing Conditions.

1.1 General. Contractor shall provide all plant, labor, and equipment necessary to supply and install a new 100 million gallon per day (MGD), solids handling influent pump including new electric motor and other equipment at the Savanna Wastewater Treatment Plant (SWWTP). Work includes removal of existing 100 MGD pump and existing 48” knife‐gate valve on pump intake, supply and install new 48” knife‐gate valve and new 100 MGD pump with motor and motor support. Other work includes the optional work detailed herein for existing variable frequency drive (VFD) for the pump motor, removal of existing and installation of new 60”x60” sluice gate with electric actuator, and testing new 100 MGD, solids handling pump. To facilitate the removal of the existing pump and knife‐gate valve, the influent wet well must be pumped down and by‐passed. Contractor shall have 450 days from award to complete the project. SWWTP is located at 3810 I‐55 South Frontage Rd, Jackson, MS 39212.

1.2 Location and Existing Conditions. The work is to be performed at the SWWTP, Raw Sewage Pump Building. The motor for the existing 100 MGD, solids handling pump has been removed and is no longer at the station; motor is approximately 1250 Hp. The station has a 20‐ton bridge crane that services the pumps and will be available for use by the contractor. New knife‐gate valve and pump with motor shall fit in the existing location and connect to the existing piping. Contractor shall use existing water supply for motor cooling. 60”x60” sluice gate is located at the lagoon flume associated with the 100 MGD pump discharge pipe. See original Raw Sewage Pump Building construction drawings provided herein for general pump, motor, valve, and sluice gate arrangement.

1.3 Existing 100 MGD, solids handling pump is an Allis Chalmers model 112‐312‐510, size 48x36, rated at 69,500 gpm at 52 feet of total dynamic head. The original motor has been removed from the motor stand and no longer exists.

1.4 Knife‐Gate Valve. The existing knife‐gate valve is 48” and is located below the pump to provide for intake shut‐off. The valve has a manual actuator. Raw Sewage Pump Building wet well will have to be pumped down to allow for removal and replacement of knife‐gate valve. Existing knife‐gate valve is reported to be inoperable.

1.5 VFD. The variable frequency drive (VFD) has been out of service for some time and will require cleaning and testing or replacement to ensure proper operation. Before pump testing can commence, the VFD must be operational. Existing VFD is a Perfect Harmony Drive, part number A5E46891712, manufactured by Siemens.

1.6 Sluice Gate. The existing sluice gate is 60”x60” cast iron mounted to the concrete headwall of the lagoon flume associated with the 100 MGD pump discharge. Sluice gate is operated by an electric, rising stem actuator.

2. Equipment Provided.

2.1 Submittals. Contractor shall submit for approval catalog information for equipment provided and layout drawings. Catalog data shall indicate model number and options for all equipment. Layout drawings shall show the general arrangement of the pump, motor, motor support, and knife‐gate valve.

Pump curves shall be provided for the Raw Sewage Pump Building solids handling pump. Pump curves shall show complete operating range of flow vs head and shall include efficiency and required horsepower. Pump curves for 100% ‐ 50% pump speeds shall be provided in 10% speed increments.

2.2 Solids Handling Pump. The new pump shall be rated for 69,500 gpm (100 MGD) at 52 feet total dynamic head and shall be a solids handling type. Pump shall have a minimum efficiency of 85%. The pump shall be a single‐stage type with an enclosed non‐clog centrifugal impeller. The pump design shall allow the pullout of all rotating elements and the bearing housing without disconnecting the inlet and outlet flanges. The pump suction nozzle shall be vertical and the discharge nozzle in horizontal position.

The discharge of the pump housing shall be tangential. Pump manufacturer shall have 20 years’ experience producing equipment similar to the required pump. Pump shall be a Xylem 48x36 SSEV Model 300 or equal.

2.2.1 Pump Materials. Pump casing, back cover, and suction nozzle shall be cast iron conforming to ASTM A48, CL30. Pump impellor shall be cast iron conforming to ASTM A48, CL35. Pump impellor ring, casing ring, and sleeve shall be stainless steel conforming to ASTM A743 CA 40, type 429. ASTM A36 steel shall be used for the motor pedestal. Stuffing box shall be bronze seal cage conforming to ASTM B148 C954000 with PTFE packing.

2.2.2 Pump Motor. Pump manufacture shall be responsible for the coordination and supply of the electric motor; motor shall be designed for optimal compatibility with the pump and station infrastructure. Pump motor shall be vertical, induction type, inverter duty, premium efficiency with Weather Protection Type I (WPI) enclosure. Motor shall operate on 4160 volts, 3‐phase, 60 hertz power and shall have a 1.15 service factor. Motor shall be sufficient size so there will be no overload on the motor at rated horsepower under any condition of operation imposed by the pump. Motor shall be designed, built, and tested per NEMA – MG‐1 standard.

2.3 Knife‐Gate Valve. The new 48”, knife‐gate valve shall have a 50‐psi pressure rating and be fully bonneted with a metal seat. Valve shall meet the latest edition of AWWA C520 and shall be supplied complete with all accessories including body, gate, seat, stem, and manual operating mechanism. All wetted parts shall be 304 stainless steel. Valve body and bonnet shall be ductile iron or steel, and all assembly bolts, nuts, and fasteners shall be 304 stainless steel. Bonnet shall fully enclose the gate and have the same pressure rating as the valve body. Gate shall have a beveled edge, be fully wedged at top and bottom, and have a minimum surface finish of 32 mirco‐inch RMS. Valve seat shall be metal with relief groove to prevent material from being packed into the seat. Valve packing shall be replaceable while the valve is in service. The yoke shall fully support the valve actuator without movement or twisting at all operator loads. A stainless steel stem with ACME threads, a bronze stem nut and a manual bevel‐gear actuator shall be provided.

2.4 Sluice Gate. Contractor shall supply and install a new 60”x60”, medium duty, cast iron sluice gate.

Contractor shall provide any equipment or supplies necessary to access sluice gate. New sluice gate shall be compatible with existing cast‐in‐place wall thimble. Contractor shall supply a new, rising stem type, electric actuator with new stainless‐steel stem. Actuator shall be floor stand mounted and provide manual override hand crank. Contractor shall supply new stem guides as required. Actuator shall be designed to open/close sluice gate with 18 feet of seating head.

2.5 VFD.

2.5.1 Option 1, Cleaning and Testing of Existing VFD. Contractor shall employ the services of a manufacturer’s service technician to clean and inspect the existing VFD to determine if the unit can be returned to service. If the VFD is deemed serviceable, contractor shall clean, rehab, and test the unit in accordance with the manufacturer’s service representative requirements and supervision. Contractor shall verify the existing VFD is compatible with the new motor supplied in paragraph 2.2.2. Contractor shall supply a written report for the condition of the VFD, list of rehab services completed, and testing report.

2.5.2 Option 2, Provide New VFD. If the existing VFD is deemed unserviceable or incompatible with the new motor, Contractor shall remove existing VFD and provide and install a new VFD. New VFD shall be compatible with the new motor provided in paragraph 2.2.2. New VFD shall be designed to operate in a covered, outdoor environment subjected to variable temperatures, dust/dirt, and moisture. New VFD shall have control contacts to provide same system interlocks, safeties and checks as existing VFD.

Contractor shall submit catalog information on the selected VFD including all options and accessories, interlocks/safeties, and manufacturer’s statement of capability with the new motor. New VFD shall be operational before the start of pump testing.

3. Installation of New Equipment.

3.1 General. Contractor shall have received all new equipment before mobilizing on site to begin removal of and installation of equipment. Contractor shall coordinate all work on site with SWWTP personnel to avoid interruptions to normal plant operations except as required. A minimum of two weeks’ notice will be given to SWWTP personnel before beginning the removal of knife‐gate valve. All equipment removed shall become the property of the contractor and removed from the SWWTP.

Contractor shall maintain access to other parts and equipment in the Raw Sewage Pump Building (RSPB) throughout the process. All areas impacted by the Contractor shall be returned to same condition as before work started.

3.2 Knife‐Gate Valve. Contractor shall be prepared to expedite this part of the work to limit disruption to

SWWTP operation. To perform the removal and installation of the knife‐gate valve the RSPB influent gate will need to be closed and the flow diverted to the EQ basin using the temporary by‐pass pumps.

The wet well will then need to be pumped down to allow for removal of existing knife‐gate valve. This is to be accomplished by drawing down the wet well as much as possible with the influent pumps and completed using a contractor provided submersible pump. Influent pump operation shall be under the direction of SWWTP personnel. Contractor shall verify the intake to the 100 MGD pump is clear as pump has been inoperable for years, if necessary, Contractor shall clear pump intake. Prior to closing the influent gate, Contractor shall remove as much of the existing equipment as possible to help expedite installation of knife‐gate valve. Once the wet well is pumped down, the existing valve shall be removed, mating flanges cleaned and prepared for new valve. New valve shall be installed according to the manufacturer’s instructions. Proper installation of the valve shall be demonstrated by operating the valve through two complete open to closed cycles using the actuator provided with the valve. Valve demonstration shall be witnessed by Government and SWWTP personnel. When proper operation of the valve has been demonstrated, the valve shall be closed, and the RSPB returned to normal operation.

3.3 Option, New VFD. Contractor shall remove the existing VFD and properly dispose of equipment.

New VFD shall be installed in the same general location as the existing VFD and shall utilized existing wiring. VFD shall be installed in accordance with the manufacturer’s instructions and appropriate codes and standards. Contractor shall verify proper operation of interlocks and safeties of the pumping system. VFD shall be fully operational before pump start‐up and testing.

3.4 Solids Handling Pump. Contractor shall install new 100 MGD pump with motor in accordance with the manufacturer’s instructions. All spacers, adapters or other equipment needed to connect the pump to intake or discharge piping shall be provided by the Contractor. New sole plates and anchors shall be used. The pump shall be lubricated in accordance with the manufacturer’s requirements; all lubricants to be provided by the Contractor. Motor and or pump shall be connected to existing cooling water piping; any required fittings or piping shall be provided by the Contractor. Pump installation and shall be under the direction of the pump manufacture’s factory representative.

3.4.1 Pump Inspection and Testing.

3.4.1.1 Factory Representative. The pump manufacturer shall furnish the services of a qualified factory representative who shall have complete knowledge of proper operation and maintenance to inspect the final installation and supervise the test run of the equipment. The pump manufacturer shall provide a minimum of 8 hours of a representative’s time; however they shall be on site until pump inspection and testing are successfully completed and accepted by the Government.

3.4.1.2 Inspection. Upon completion of pump installation, the Contractor and factory representative shall inspect the installation and submit a certificate stating the installation and equipment is ready for testing and operation. Certificate shall be submitted to the Government for approval.

3.4.1.3 Testing. Prior to testing, Contractor shall check motor for proper clearance and alignment and lubrication. Direction of rotation shall be checked and corrected as required. Prior to testing, Contractor shall verify the position of valves in the pump intake and discharge piping that would affect the test.

Contractor shall conduct field tests to demonstrate proper installation and operation of the pump system. Test shall demonstrate proper alignment; no leaking; pump operates without overheating or overloading; pump operates without excessive vibration or harmonics; and there are no mechanical defects. If issues are found during testing, Contractor shall take all necessary action to correct and retest. Testing shall be conducted in the presence of the Government. Once satisfactory testing is completed, the Contractor shall submit a written test report stating the pump system is properly installed and fully operational, this report will be signed by the pump manufacturer’s factory representative.

3.5 Sluice Gate. Contractor shall install the new sluice gate with actuator according to the manufacturer’s instructions and guidance. Once sluice gate and actuator have been installed, Contractor shall operate the gate from fully open to fully closed 2 times to demonstrate it is functioning properly.

4. Warranty, Operations and Maintenance Manual, Training, and Contract Complete.

4.1 Warranty. Contractor shall provide the manufacture’s standard warranty for all new equipment installed. Contractor shall warranty all work and equipment for a period of one year from completion of field training.

4.2 Operation and Maintenance (O&M) Manual. Contractor shall furnish an O&M manual for each piece of equipment provided. Manual shall provide information for the normal operation and required maintenance for each piece of equipment, including maintenance intervals. Manual shall provide a detailed parts list for the equipment provided. Contractor shall furnish two, bound copies of each O&M Manual and an electronic PDF copy.

4.3 Training. Once equipment has been tested and approved, the Contractor shall provide field training to SWWTP personnel. Training shall demonstrate proper operation and routine maintenance of the knife‐gate valve, sluice gate, and 100 MGD pump and motor. Contractor furnished O&M manual will be used/referenced during this training. Once field training is complete, Contractor shall turn equipment over to SWWTP staff for operation.

4.4 Contract Complete. The contract will be considered complete once the field training is completed and all areas impacted by the Contractor have been restored to pre‐work conditions.

5. Contractor Employee Security Requirements.

5.1 Requirements. Contractor employees shall meet the following security requirements and training.

5.2 AT Level I Training. All contractor employees, to include subcontractor employees, requiring access to Army installations, facilities, controlled access areas, or require network access, shall complete AT

Level I awareness training within 30 calendar days after contract start. Upon request, the contractor shall submit certificates of completion for each affected contractor employee and subcontractor employee, to the COR or to the contracting officer (if a COR is not assigned), within 5 calendar days after completion of training by all employees and subcontractor personnel. AT Level I awareness training is available at the following website: http://jko.jten.mil/courses/atl1/launch.html; or it can be provided by the RA ATO in presentation form which will be documented via memorandum.

5.3 Access and General Protection/Security Policy and Procedures. All contractor and all associated sub‐ contractor’s employees shall comply with applicable installation, facility and area commander installation/facility access and local security policies and procedures provided by government representative). The contractor shall also provide all information required for background checks to meet installation/facility access requirements to be accomplished by Security Office. Contractor workforce must comply with all personal identity verification requirements (FAR clause 52.204‐9, Personal Identity Verification of Contractor Personnel) as directed by DOD, HQDA and/or local policy. In addition to the changes otherwise authorized by the changes clause of this contract, should the Force

Protection Condition (FPCON) at any installation or facility change, the Government may require changes in contractor security matters or processes.

5.4 Access and Local Security Policy. Contractor and all associated sub‐contractors employees shall comply with adjudication standards and procedures using the National Crime Information Center

Interstate Identification Index (NCIC‐III) and Terrorist Screening Database (TSDB) (Army Directive 2014‐

05 / AR 190‐13), applicable installation, facility and area commander installation/facility access and local security policies and procedures (provided by government representative, as NCIC and TSDB are available), or, at OCONUS locations, in accordance with status of forces agreements and other theater regulations.

5.5 Suspicious Activity Reporting Training (e.g. iWatch, CorpsWatch, or See Something, Say Something).

The contractor and all associated sub‐contractors shall receive a brief/training (provided by the RA) on the local suspicious activity reporting program. This locally developed training will be used to inform employees of the types of behavior to watch for and instruct employees to report suspicious activity to the project manager, security representative or law enforcement entity. This training shall be completed within 30 calendar days of contract award and within 30 calendar days of new employees commencing performance with the results reported to the COR NLT 5 calendar days after the completion of the training.

5.6 Classified or Sensitive Areas. All contract employees, including subcontractor employees who are not in possession of the appropriate security clearance or access privileges, will be escorted in areas where they may be exposed to classified and/or sensitive materials and/or sensitive or restricted areas.

5.7 For Contracts that Require OPSEC Training. All new contractor employees will complete Level I

OPSEC Training within 30 calendar days of their reporting for duty. Additionally, all contractor employees must complete annual OPSEC awareness training. The contractor shall submit certificates of completion for each affected contractor and subcontractor employee, to the COR or to the contracting officer (if a COR is not assigned), within 5 calendar days after completion of training. OPSEC awareness training is available at the following websites: https://www.iad.gov/ioss/ or http://www.cdse.edu/catalog/operations‐security.html; or it can be provided by the RA OPSEC Officer in presentation form which will be documented via memorandum.

5.8 E‐verify Program. The Contractor must pre‐screen Candidates using the E‐verify Program

(http://www.uscis.gov/e‐verify) website to meet the established employment eligibility requirements.

The Vendor must ensure that the Candidate has two valid forms of Government issued identification prior to enrollment to ensure the correct information is entered into the E‐verify system. An initial list of verified/eligible Candidates must be provided to the COR no later than 3 business days after the initial contract award.

Figure 1: Project Map

Reference Drawings

Table of Contents

1 Raw Sewage Pump Building ‐ Original Contract Drawings

2 100 MGD Pump – Original Manufacturer’s Drawing