PWS B433 utility repairs.docx

Performance Work Statement Project Title: B433 Utility Repairs NexGen Work Task #: SR 5133053

1. Objectives:

The Contractor shall replace the existing piping, valves, lift station pumps, controls & control wiring/conduit, and associated components in the B433 lift station and adjacent equipment manhole. The piping shall replaced through the manhole walls out to the 6” gravity main connection.

2. Conditions:

The existing lift station pumps are 2ea submersible non-clog pumps (XFP 4” EffeX, 208V, 3ph, 3.8HP) connected to 4” piping directed south through the lift station wet well wall, with flange connection elbows and adapters. With the lift station manhole surface at approximately 974’ elevation, the top of the pumps are at approximately 957’ elevation, and the bottom of the manhole at approx. 955’ elevation. The adjacent manhole contains the continuation of the two 4” gravity main pipes at approx. 967’ elevation, two 4” isolation valves, two 4” check valves, and a sump pump for the manhole that is replacing the previous 3” pipe that drained to the wet well. One of the 4” lines also has a 2” hose nozzle connection with a cap between the check valve and the isolation valve. The 4” pipes continue further south out the manhole wall before connecting together at the 6” gravity main with a 6”x4” wye, heading west.

3. Project Requirements

· The Contractor shall visit site before starting any work to verify existing conditions space requirements in work areas.

· The Contractor shall excavate between the equipment manhole and the wet well, and from the equipment manhole out to the force main 6” connection, to expose the piping for replacement.

· The Contractor shall remove the existing equipment and piping and replace it with like-for-like equipment in form, configuration, and functionality. The controls are currently partially re-routed – the new controls shall be installed per the original configuration with like-for-like function.

· The Contractor shall provide reconnection of electrical and controls for the new lift station pumps.

· The Contractor shall provide start up testing and leak testing to prove satisfactory installation and capability of the new equipment.

· The Contractor shall backfill and provide compaction for the excavated area.

· The Contractor shall provide at least a 1-year warranty on all labor and new materials.

· The Contractor shall clean up and dispose of all removed equipment and project waste from the replacements, as well as any trash generated from the work. Refuse shall be disposed of off-Base in accordance with Offutt AFB Environmental Special Conditions section 01 57 19.

4. Other General Requirements:

The contractor shall furnish all material, labor, transportation, equipment, tools, services, expertise, supervision, and incidentals required to fulfill the requirements of this contract. No alterations, additions, or deletions shall be made unless by prior approval of the government Project Manager and the government Procuring Contract Officer (PCO). The work shall conform to the most current applicable State, AFI, ETL, NFPA, and Unified Facility Criteria Standards. Work shall be completed in a neat, substantial, and competent manner. All personnel shall abide by all industry safety standards, such as OSHA, and the Contractor shall provide all required PPE. The contractor shall perform quality assurance activities that conform to the quality assurance processes outlined in International organization of Standards (ISO) 9001, Quality Management Systems. The Contractor shall use PWS requirements.

The Contractor shall coordinate with the Government for needed system operation to allow the work and subsequent testing on the pump. The Contractor shall provide their own lock-out-tag-outs as needed.

During construction the Government will occupy the existing facilities. The contractor shall not restrict nearby pedestrian or vehicular traffic and shall coordinate with the Contracting Officer’s Representatives to facilitate usage. The Contracting Officer’s Representatives shall be notified not less than 15 calendar days in advance of any interruptions in building utilities / services, which will be described in writing.