Attachment_1_-_SOW_Lower_Lot_Lift_Station_Rehabilitation.docx

Valley Forge National Historical Park

STATEMENT OF WORK

Rehabilitate Lower Lot Lift Station

PMIS: 335885

DATED

3/06/2024

NATIONAL PARK SERVICE

I. SCOPE OF WORK

Valley Forge is looking to rehabilitate the Lower Lot Sanitary Lift Station and pumps all sanitary from the Lower Lot to the municipal sanitary system for treatment. The age of the existing equipment is unknown but at least 20+ years old and is beyond its life cycle. We are currently running on only one pump of a duplex system due to pump/control panel issues and the whole system is in need of replacement. The project will only be for the sanitary grinder pumps, piping within the wet well, and control panel. The existing wet well shall remain due to contaminated soil within the area.

II. TASKS

This section includes all labor, materials, tools and other equipment, services and supervision required to complete the work of this project. The Contractor’s work sequence shall include, but is not limited to:

A. General:

1. The contractor shall be familiar with the requirements stated in this scope of work and an in person project kick off meeting with the COR prior to the commencement of the project is mandatory.

2. Contractor must provide a project schedule.

3. Weekly onsite meetings with the COR must be conducted on the project.

4. The contractor must confirm existing site conditions and measurements.

5. Drawings, shop drawings, material samples, and product submittals related to the proposed work must be submitted to the National Park Service (NPS) and allow (5) five working days for review and approval.

6. Where needed erect temporary construction barriers to protect visitors and employees. The contractor shall work with the CO/COR to avoid or minimize interruptions to general visitor access. Minimum is OSHA standards.

7. Protect all surfaces of the building, walks, drives, signage, and facility/Government equipment from damage by project operations.

B. Background Info:

1. Tank is approx. 400 gals to the invert (field verify)

2. Confined space certification is required

3. No excavation, this is an asbestos release site

C. Construction:

1. Demo:

a. Pump effluent/solids from tank

b. Remove float rail assembly

c. Remove existing grinder pumps, conduit and pump wiring

d. Pressure wash wet well and pump out tank completely

e. Visually inspect tank for integrity

f. Clean and seal existing conduits leaving the tank

2. Equipment:

a. Grinder Pumps

i. Hydromatic HPFH500M2-2 or approved alternate

ii. 3450 RPM

iii. 115GPM Max

iv. 2” NPT discharge

v. FLA 2905

vi. Cord Length 25’

vii. Semi-open vane impeller

viii. 6.25 impeller

b. Standard 4 float rail system

i. Floats shall be installed at existing Product levels

ii. Low level off/ alarm

iii. Lead pump on

iv. Lag pump on

v. High level alarm

c. Control panel

i. 120/240 volt single phase

ii. 4 float operation

iii. Pump run indicator light

iv. Alternating relay

v. Hour meters

vi. Pump hand/off/auto heavy duty switch

vii. Alarm on/test/off heavy duty switch

viii. Two 2 pole 30 amp definite purpose contactors (100,000 cycle rating)

ix. One two pole 25 amp circuit breaker for each pump

x. 10 amp fuse for control and alarm curcuits

xi. NEMA 4X enclosure, UL 508a listed

xii. 360 degree red alarm beacon

xiii. Audible alarm

d. Piping

i. New 3’ stainless steel piping from pump

ii. Install two 3” check valves in the riser

iii. 3x4 reducing bushing at horizontal to meet with 4” discharge at the invert

iv. Two stainless steel check valves in tank (one per pump)

v. Two air reliefs one per pump in tank

e. Electrical

i. Repair 2” PVC 90 at grade

ii. Remove and replace 60 amp knife switch

3. Facilities:

a. Provide 2 single stall and one ADA chemical toilets during construction

III. PROJECT LOCATION

IV. GENERAL GUIDANCE:

1. All measurements are approximations and shall field verified by contractors.

2. No additional work outside the scope of this Statement of Work will be started without approval by the CO. If additional work is needed the CO will request a cost estimate from the contractor.

V. QUALITY ASSURANCE

1. Contractor shall assure quality of project work.

2. Contractor shall provide before, during, and after pictures of all work and attached to the Daily Reports.

3. Installer Qualifications: Minium of 5 years experience in sanitary lift station installation and repair.

4. The services to be performed by the contractor shall be inspected by the Contracting Officer or his/her authorized representative, the COR. Inspection by COR will be made daily or more frequently.

5. NPS Policies and Directives, including the Secretary of the Interiors Standards for Historic Preservation (preservation, restoration, and rehabilitation) will guide all work.

6. Due to the historic and nationally significant nature, Park resources often present unique and unusual conditions.

7. Other Applicable Standards shall comply with the policies and standards of the governing bodies and applicable regulations which include but are not limited to:

a) State and local codes [latest editions]

b) NEC (National electrical code)

c) Uniform Building Code [ICBO, latest edition]

d) Occupational Safety and Health Act [OSHA, latest edition]

e) PA EPA regulations

VI. PROJECT MEETINGS

Before the start of this project, the Contracting Officer (CO) will arrange a pre-construction meeting with the contractor and the park COR. Items to be covered may include park rules and regulations, authorized representatives, correspondence, procedures, labor standards provisions, payroll reports, daily reporting, modifications, payments to contractor, acceptance/rejection of product, subcontractors, documents required under the contract, submittals, allowable work times/days, (generally week days 7:00am – 3:30pm), OSHA compliance, reference materials, contractor quality control, liquidated damages, notice to proceed, tentative construction schedule, etc.

VII. SUBMITTALS

The following submittals are required to be submitted using the CM_16 transmittal form and approved by the CO/COR prior to Notice to Proceed.

1. Submit a work schedule delineating the various stages of work by phase (milestones) for review and approval by Contracting Officer and COR two weeks ahead of work starting.

2. Submit two sets of Safety Data Sheets (SDS) must come through the CO or Contract administrator on the NPS transmittal form prior to commencement of work for review and for posting at job site as required. Deliver all materials to this job site in sealed, original labeled containers bearing manufacturers name, brand name, standard compliance, materials content.

3. The contractor shall provide a QASP (Quality Assurance Surveillance Plan) as well as a Safety Plan to the COR for approval.

4. Product, material and equipment submittals for all proposed to install.

The following submittals are required to be submitted at project close out:

1. Contractor is required to provide at the end of the project a series of pictures with an explanation of what the picture is, direction of the object in the picture and what work was completed.

2. All Work Warranties and Product Guarantees.

3. Receipts from recycling companies showing quantity of material being recycled.

Other submittals may be required by the contracting office.

VIII. PROJECT DURATION

Project work will be completed in 60 days after “Notice to Proceed” is issued.

IX. BARRIERS & RESOURCE PROTECTION MEASURES

1. Furnish, install, and maintain barriers to protect existing facilities and to protect public visitors and staff.

2. Erect barriers, lights, danger signals, and warning signs and OSHA regulations.

3. Completely remove barriers no longer needed when approved by the Contracting Officer (CO).

X. TEMPORARY CONTROLS

Maintain the following temporary controls to protect visitors, staff, and the environment:

1. Keep project neat, orderly, and in a safe condition at all times. See section IX-Barriers.

2. Dispose of contractor-generated waste materials and other excess material outside the site in accordance with national, state, and local regulations. Do not allow waste materials to be washed into Municipal storm sewer system or nearby streams.

3. Do not interfere with public visitation.

4. Meet all OSHA standards.

The job will be shut down immediately if any unsafe practices are observed and work may not be resumed until conditions are corrected to satisfaction of CO.

XI. MATERIAL AND EQUIPMENT

1. No storage facility is available on site. A staging area will be provide and determined at the precon or site visit if indoor storage is needed the park may be able to accommodate. Contractor and employee parking will also be discussed at the precon.

2. The contractor shall maintain all equipment in safe condition.

XII. PROJECT CLOSEOUT

When project is complete, contractor shall request in writing a final inspection. Upon receipt of this written request, the Contracting officer will proceed with inspection within 10 days of receipt of request or will advise the contractor of items that prevent the project from being designated as complete.

1. Any work rejected by the Contracting Officer Representative shall be made good at the expense of the contractor

2. If following final inspection, the work is determined to be not complete; the Contracting Officer will notify contractor in writing. The Contracting Officer will prepare a list of deficiencies to be corrected. The Contractor shall complete the work described on the list of deficiencies within 10 calendar days. After completing work, the contractor shall request a new final inspection.

3. After all deficiencies have been corrected; a Letter of Final Acceptance will be issued.

XIII. SPECIAL PRECAUTIONS / CONDITIONS

The subject building is part of a National Park with public visitation seven days a week. Contractor’s business should be conducted to respect the public nature of this property and, to the extent possible, not interfere with the visitor’s enjoyment and use of property.

1. No work shall take place on holidays or weekends without prior approval of the Contracting Officer. The hours for contractor access are 7:00am to 3:30pm.

2. Equipment will not be permitted on surfaces where weight/pressure may damage the surface.

3. Contractor will keep all entrances, vehicular circulation lanes clear.

4. The contractor is responsible to repair all damage caused by their personnel or equipment. Property and grounds must be brought back to original or better condition.

Appendix A. Photos/ Drawings

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