SOW - 20PW200.docx

STATEMENT OF WORK (SOW)

FOR

Repair Equipment Bay Steam Trench

AT

Watervliet Arsenal Building #22

Project #: 20PW200 Installation Management, Public Works Division Facilities Engineering (TAWV-IMP-F)

PART 1 GENERAL

SUMMARY OF WORK

1.1.1 Project Description

a. This Statement of Work (SOW) defines the effort required to repair the metal cover plates over the steam trench located in the back of the Apparatus Bay of the Fire House, Building 22. The existing metal plates have significantly rusted. The rust has elevated a few of the plates above the surrounding floor creating a tripping hazard. It is the objective of this project to eliminate the tripping hazard and prevent future rusting.

1.1.2 Location of Work

a. The work is located at the Firehouse, Building 22, approximately as indicated. The exact location will be shown by the Contracting Officer.

1.1.3 Period of Performance

a. The contractor shall be required to (i) commence work under this contract within 7 calendar days after the date the contractor receives notice to proceed, (ii) prosecute the work diligently, and (iii) complete the entire work ready for use not later than [30] calendar days after notice to proceed was given. The time stated for completion shall include final cleanup of the premises.

1.1.4 Hours of Operation

a. Normal duty hours are 7:00 AM through 4:00 PM, Monday through Thursday, and 7:00 AM through 3:00 PM on select Fridays (the arsenal is closed every-other Friday). Federal holidays are non-work days. If a federal holiday falls on a Saturday or Sunday, the preceding Friday or following Monday is a work holiday.

SUBMITTALS

1.1.5 General Submittal Requirements

a. The contractor shall provide submittal documents via e-mail to the Contracting Officer for review and approval. Provide all physical (non-document) submittals (including but not limited to material swatches, samples, etc.) directly to the Contracting Officer for review and approval. All submittals require government approval unless otherwise explicitly stated.

b. The contractor shall reference APPENDIX A “Consolidated List of Submittals” for the complete list of required submittals.

1.1.6 Contractor Safety Plan

a. The contractor shall submit a safety plan which is specific to the work activity being performed under the scope of this project for Government review and approval.

1.1.7 Lockout / Tagout (LOTO) Acknowledgement

a. The Contractor shall sign and submit a “Lockout/Tagout (LOTO) Notification Acknowledgement Record” prior to working on or de-energizing any electrical equipment.

1.1.8 Asbestos Notification Acknowledgement Record

a. The contractor shall sign the “Asbestos Notification Acknowledgement Record” and submit this form to the Project COR prior to starting project work.

1.1.9 Project Schedule

a. The contractor shall create a project schedule and submit for Government review and approval.

b. The project schedule shall detail the phases of work and the overall timeline for the execution of the work. The contractor shall include delivery dates, appropriate milestones, and shall clearly detail any requirements for work performed outside of regular hours of operation.

GENERAL REQUIREMENTS

1.1.10 Watervliet Arsenal Information for Contractors (WAIC)

a. The contractor shall perform all work in strict conformance with Watervliet Arsenal Instructions for Contractors (WAIC). The contractor shall read and understand this document prior to submitting a proposal. The WAIC is publically available at:

<http://www.wva.army.mil/Documents/Contracting/WAIC.pdf>

1.1.11 Utility Outage Requests and Utility Connection Requests

a. Schedule work to minimize outages. For utility outages and connections required during the execution of work that affect existing systems, coordinate schedule with COR. Schedule utility outages and connections to minimize disruptions to the Government. No additional payment will be provided for utility outages and connections required to be performed outside the regular work hours.

b. The contractor shall notify the Contracting Specialist a minimum of two (2) business days before the contractor starts work. The contractor shall notify the COR a minimum of seven (7) business days before the shut-down of a utility or building service.

1.1.12 Safety Requirements

a. The contractor is required to provide the proper control of hazardous energy (lockout/tagout) per OSHA 29 CFR 1910.147.

b. The contractor shall inspect the project work site prior to starting work, and shall request a copy of the asbestos building inspection records to verify the location and description of known asbestos-containing materials.

ON-SITE PERMITS

1.1.13 Excavation (Dig Permit)

a. The clearance of buried utilities will be performed by the Government in advance of the Contractor performing subsurface work, unless otherwise explicitly stated.

b. The Contractor shall obtain a copy of the completed Utility Clearance Permit (WVA Form 420-2-E) from the COR prior to performing subsurface work. Verify existing utility locations indicated on contract drawings, within area of work.

1.1.14 Hot Work and Confined Space

a. Obtain permit for welding, burning, use of flame, or entry into confined space from WVA Fire Department by calling (518)266-5990 each day the permit is to be used.

APPLICABLE DOCUMENTS

1.1.15 Drawings

a. The following drawings accompany this Statement of Work and are a part thereof.

i. A1 – Site Plan

1.1.16 Specifications

a. The following specifications accompany this Statement of Work and are a part thereof.

i. ICRI Technical Guideline 310.2R

1.1.17 References

a. The following references accompany this Statement of Work and are a part thereof.

i. Watervliet Arsenal Instructions for Contractors (WAIC).

ii. American Concrete Institute (ACI)

iii. Occupational Safety and Health Administration (OSHA)

iv. UFGS SECTION 03 01 00 - REHABILITATION OF CONCRETE

CONTRACTOR EQUIPMENT

1.1.18 Equipment Identification

a. The contractor shall create and affix a label to all large equipment, dumpsters, and other mobilized property, which is weather-resistant (laminated, or within a see-thru label hanger), securely affixed to the equipment or visible through a window, and which clearly displays the General Contractor’s:

i. Company Name, POC Name (first, last), POC phone number, Project Number.

1.1.19 Waste Dumpster

a. The contractor shall place any waste dumpsters in a manner that does not interfere with thru-traffic.

b. Place waste dumpsters with a minimum of 33’ clearance from any building. The final location shall be coordinated with, and approved by the COR before any dumpsters are mobilized.

c. Cover all waste dumpsters when not in use, and before the end of each work shift. The cover shall be weather-tight.

d. The Contractor shall submit all Bills of Lading and Weight Slips associated with the disposal of all construction and demolition (C&D) debris to the Contracting Officer on a monthly basis. The contractor shall provide this information within ten (10) days of disposal of the waste.

PART 2 PRODUCTS

GENERAL

All work shall be in strict accordance with product manufacturer’s instructions and specifications, including but not limited to manufacturer guidance for storage, staging, application, installation, and disposal of the product.

2.1.1 Hazardous Materials

a. The contractor shall submit Safety Data Sheets (SDS) for all hazardous materials to be used.

2.1.2 Asbestos, Mercury, Lead, PCB

a. Unless otherwise stated, all materials for this project shall be new. All products shall not contain any asbestos, mercury, chromium/lead paint, Class I Freon, and Polychlorinated Biphenyls (PCB), and shall state such on the manufacturer’s original packaging.

2.1.3 DoD Green Procurement Program

a. All construction materials shall meet the applicable requirements of the DoD Green Procurement Program, specifically recycled content products, environmentally preferable products and services, biobased products, energy-and water-efficient products, alternate fuel vehicles and alternative fuels, products using renewable energy, and alternatives to hazardous or toxic chemicals as found at <http://www.acq.osd.mil/dpap/cpic/cp/docs/USA001967-08-DPAP.pdf>.

2.1.4 Paint

a. To meet the Affirmative Procurement Program (Federal Government’s Buy Recycled Requirements) all paint used in the project shall adhere to the below listed requirements of the Comprehensive Procurement Guideline for recovered materials. This applies only to interior latex paint, only if available at the time of the project.

i. Reprocessed Latex Paint (White, Off-White, Pastel Colors) shall contain 20% Post consumer content.

ii. Reprocessed Latex Paint (Grey, Brown Earth tones, and Other Dark Colors) shall contain 50-99% Post consumer content.

iii. Consolidated Latex Paint shall contain 100% Post consumer content.

PRODUCTS

2.1.5 Structural Concrete: Five Star Structural Concrete® ES or equivalent

a. The concrete repair material shall be an extended set, pre-packaged cement-based mortar requiring only the addition of potable water. The material shall not contain any chlorides or lime other than amounts contained within the hydraulic cement composition. The manufacturer shall be ISO 9001 certified and have at least ten years of experience in the manufacture of concrete repair materials. The manufacturer shall offer technical services and provide a representative at the jobsite for product training prior to product installation upon five days advance notice.

b. The concrete repair material shall meet all the following typical performance criteria when cured at 70F (21C):

i. Compressive Strength, ASTM C 109

i. 6 Hours 3,000 psi (20.7 MPa)

ii. 1 Day 4,500 psi (31.0 MPa)

iii. 7 Days 6,000 psi (41.4 MPa)

ii. Bond Strength, ASTM C 882

i. 1 Day 2,000 psi (13.8 MPa)

ii. 7 Days 2,500 psi (17.3 MPa)

iii. Length Change, ASTM C 157

i. 28 Days Wet +0.03%

ii. 28 Days Dry -0.05%

iv. Chloride Ion Permeability, ASTM C 1202

i. 28 Days Very Low (< 1,000 Coulombs)

v. Thermal Coefficient of Expansion,

i. ASTM C 531 5.0 x 10-6 in/in/°F (9.0 x 10-6 mm/mm/°C)

vi. Working Time at 70F (21C) 25 minutes

c. The data shown above reflect typical results based on laboratory testing under controlled conditions. Reasonable variations from the data shown above may result in the field. Test methods are modified where applicable.

2.1.6 Epoxy Bonding Agent: Five Star® Bonding Adhesive or equivalent.

a. The epoxy adhesive shall be a two component, 100% solids, moisture insensitive structural epoxy suitable for bonding of new concrete to existing concrete or steel. The manufacturer shall be ISO 9001 certified and have at least 10 years of experience in the manufacture of epoxy systems. The manufacturer shall offer technical services and provide a representative at the jobsite for product training prior to product installation upon five days advance notice.

b. The epoxy adhesive shall meet all the following typical performance criteria when cured at 73°F (23°C):

i. Viscosity, ASTM D 2393 6,000 cps

ii. Gel Time, ASTM C 881 15 Minutes

iii. Tensile Strength, ASTM D 638 7,000 psi (48.3 MPa)

iv. Water Absorption, ASTM D 570 0.61%

v. Bond Strength, ASTM C 882

vi. 2 Days 3,000 psi (20.3 MPa), 14 Days 4,000 psi (20.0 MPa)

vii. Compressive Strength, ASTM D 695 12,000 psi (82.0 MPa)

viii. Compressive Modulus, ASTM D 695 2.25 x 105 psi (1551 MPa)

ix. Meets ASTM C 881, Types I, II, IV and V Grade 2, Classes B & C

c. The data shown above reflect typical results based on laboratory testing under controlled conditions. Reasonable variations from the data shown above may result in the field. Test methods are modified where applicable.

2.1.7 Angle Steel: 2” x 2” x ¼” Galvanized Steel.

a. A36 Hot Rolled, G90 Galvanized coating.

2.1.8 Flat Bar: ¾” x ¼” Galvanized Steel.

a. A36 Hot Rolled, G90 Galvanized coating.

2.1.9 Steel Floor Plate: SlipNOT® Slip Resistant Floor Plates, 36” x 12” Max.

a. 3/4” Thick Galvanized Steel.

b. Grade 3 (Coarse).

c. Two – 1” Lifting Holes Drilled in Each.

d. Conforming to ASTM A36, G-90 Galvanized Coating.

PART 3 EXECUTION

ITEMS OF WORK

3.1.1 General.

a. The work covered by this document consists of furnishing all equipment, materials, labor and performing all operations required for concrete repairs as directed.

b. The contractor is required to review the project site, obtain and/or verify all measurements and project data required to perform the project work. Information shown on the project plan is of a graphical nature. Precise locations and actual sizes must be verified.

c. The contractor shall review all contract documents and provide written notice to the Project Engineer and Contracting Officer of any discrepancies that are found prior to bid submission.

d. The contractor shall submit with their bid, at least three job references where the contractor has successfully completed similar applications/repairs.

e. All new steel (to include anchors) shall be hot dipped galvanized in accordance with ASTM A123/A123M-17 for corrosion protection.

f. All materials shall be delivered to the jobsite in their original, unopened packages, clearly labeled with the manufacturer's identification, printed instructions and batch code. Contractor shall store and condition the specified products as per the appropriate product data sheet.

3.1.2 Demolition.

a. The contractor shall use all means and precautions necessary to insure the safety of the occupants and protection to the existing building during demolition and surface preparation operations.

b. The contractor shall install necessary barricades and enclosure to contain particles and vapors from migrating into other areas of the building, and to protect and control construction traffic. Respirable crystalline silica, which is very small particles at least 100 times smaller than ordinary sand you might find on beaches and playgrounds, is created during cutting, sawing, grinding, drilling, and crushing of concrete. Contractor shall comply with OSHA's Respirable Crystalline Silica standard (1923.1153) for construction, which requires employers to limit worker exposures to respirable crystalline silica and to take other steps to protect workers.

i. Efforts shall be made to create a pressure barrier that effectively prevents air-borne pollutants from moving from the work area to another adjacent area within the building. To increase the effectiveness of the barrier, physical barriers can be used, such as plastic sheeting.

c. The contractor shall avoid creating a safety issue by having an open trench for an extended period of time. Therefore, since the existing ¾ inch thick steel diamond plate covers will be removed and discarded, ¾ inch sheets of plywood shall be used to temporarily cover the trench. Plywood shall be positioned and secured in place to provide an adequate walking surface.

d. The contractor shall measure, mark and saw cut the epoxy coated concrete floor as specified from the edge of the frame on each side of the steam trench in order to eliminate the trip hazard and remove the deteriorated 2 inch by 2 inch angle steel. Contractor shall remove enough of the top portion of the existing trench walls (max of 6 inches) to insure a good structural bond between the new and old concrete.

i. The edges of the repair shall be straight, vertical and have a rough profile. Contractor shall avoid abrupt changes in depth.

e. The contractor shall completely remove all loose, delaminated and weak concrete, oil, grease, laitance and other contaminants from all horizontal and vertical surfaces to come in contact with the repair material. Contractor shall prepare concrete in accordance with the manufacturer’s recommendations, and using acceptable mechanical means as necessary to obtain clean, sound and rough concrete surfaces exposing coarse aggregate.

i. A Concrete Surface Profile (CSP) of 6 or greater in accordance with ICRI Technical Guideline 310.2R is recommended for the specified product. Contractor shall blow out concrete surfaces using oil free compressed air to remove all dust, debris and other contaminants.

f. The contractor shall avoid damaging embedded reinforcing and adjacent concrete. The removal methods must produce minimal microcracking (bruising) of the prepared substrate surfaces. Avoid directly striking reinforcing steel with impact tools used for concrete removal.

i. If embedded reinforcing steel or other embedded items are too close to the surface to provide the perpendicular edge cut, notify the Project COR for direction before proceeding.

g. The contractor shall dispose of runoff from wet demolition or surface preparation operations in accordance with all local ordinances. Disposal methods must avoid soil erosion, avoid undermining pavements and foundations, damage to landscaping and vegetation, and minimize water penetration through other parts of buildings.

i. Contractor shall collect and neutralize alkaline wastes and acid wastes and dispose in accordance with local, state, and federal regulations.

h. When complete, all debris generated as a result of this project shall be removed from the site by the contractor.

3.1.3 Repair Steam Trench.

a. The contractor shall repair the disturbed areas using a high early strength, single component, permanent concrete repair material which provides a 25-minute working time.

b. Immediately before placing the repair material or installing formwork, the contractor shall make the repair area available for inspection by the Project COR. Acceptance of the surface preparation must be provided prior to proceeding. If the work is rejected, the contractor shall perform additional operations to the satisfaction of the Project COR.

c. Formwork: The contractor shall construct forms to sizes, shapes, lines, and dimensions to match existing adjacent surfaces and textures (to include any openings, offsets, chamfers, anchorages, inserts or other specified features). Forms shall be constructed for easy removal to minimize damage to concrete surfaces and adjacent surfaces.

i. Contractor shall apply form release coating over formwork surfaces prior to concrete placement. Form release agents shall not be applied to or come in contact with the repair area concrete substrate, trench steel or reinforcement.

ii. Contractor shall not damage repair material during removal of formwork. If damage occurs, contractor shall perform needed repair and treatment required on surfaces immediately, making sure to follow specified curing procedures.

iii. Contractor shall remove all formwork anchors embedded in existing concrete, and fill anchor holes and repair all damage to existing concrete at anchor holes.

d. The contractor shall apply an epoxy bonding agent to all surfaces to receive the repair material in lieu of presoaking. Contractor shall apply bonding agent uniformly in accordance with manufacturer’s recommendations.

e. The contractor shall condition and maintain all materials and surfaces that contact repair material to between 35°F and 90°F, but optimally between 55°F and 75°F whenever possible.

f. Reinforcement: All existing reinforcing steel that has lost bond with the concrete or has more than one-half of its circumference exposed shall be undercut by at least ¾ inch or two times the maximum aggregate size.

i. All reinforcement shall be rigidly secured and supported.

ii. If more than 20% of the diameter of a reinforcing bar has been deteriorated, the bar will require replacement or will need to be spliced as directed by the Project Engineer.

iii. All exposed reinforcing steel shall be free of all loose scale and rust, and other contaminants.

iv. Contractor shall drill and epoxy #4 (1/2”) galvanized rebar reinforcement a minimum of 3 inches into the trench wall with a minimum of 3 inches extending into the new pour. Rebar shall be installed in the center of the exposed face and spaced at 6 inch intervals.

v. The minimum cover over reinforcement shall be in accordance with job specifications or 2 inches, whichever is greater.

g. Concrete Placement: Substrate shall be saturated and free of standing water or bonding adhesive shall be tacky during application.

i. During mixing, the contractor shall add a “gray” colored pigment (powder form) to the concrete to achieve a finished color as close to the surrounding epoxy as possible. All color packs shall be pure, synthetic, iron oxide pigments containing no fillers that will affect the performance of the mix being tinted. Color consistency shall be maintained from one concrete color pack to another, and from batch to batch.

ii. Contractor shall provide adequate access to allow a vibrator to be inserted into repair material for consolidation. Where this is not possible, contractor shall vibrate the formwork. Contractor shall only use vibration when necessary and in a manner to avoid material segregation. Vibrators shall NOT be used to move repair material laterally.

iii. Contractor shall pour material into formwork in a manner to avoid segregation, and firmly work repair material into roughened substrate to completely fill all pores and voids. Material shall be poured continuously from one side of the repair area to the other starting at the lowest elevation. When placing in layers on large pours, each horizontal layer shall extend repair width. Placement must be continuous to prevent cold joints. Contractor shall place and consolidate material in a manner to avoid segregation.

iv. Contractor shall continue placement until repair area is completely filled.

v. Once desired level is achieved, contractor shall screed repair material and finish to desired texture.

h. When finished, the contractor shall cure and protect the repair from freezing, hydrostatic pressure and vibration as recommended by the manufacturer. For the repair material specified, the manufacturer recommends keeping the repair continuously wet for 4 to 24 hours, depending on the volume, depth and placement temperature. Wet curing shall begin as soon as material reaches final set.

i. New Framing & Covers: The contractor shall install a new load bearing frame around the perimeter of each trench. Framing shall be constructed into a “Z” using 2 inch by 2 inch by ¼ inch angle steel and ¾ inch by ¼ inch flat bar.

i. Contractor shall weld “Nelson Studs” or similar headed concrete anchors to the new angle steel framing prior to installation to ensure solid casting into new concrete. Anchors shall be 3/8 of an inch in diameter, a max of 3 inches in length, and spaced every 24 inches (center to center) along the length of the frame.

j. When installed, all of the new framing shall be square, and ready to accept the newly furnished ¾ inch thick steel floor plates.

i. Contractor shall notch the first plate during final assembly to clear the piping where it stubs up from the trench system.

k. In addition to the above, the contractor shall replace the stretch of checkered covers adjacent to the north wall (approximately 69-1/2” in overall length) and the cover in front of the pedestrian door (roughly 52” in length, but this one has a thickness of 3/16”) to keep everything uniform.

l. The contractor shall ensure the top surface of the steam trench and associated covers are level and even with the surrounding finished floor prior to completion of the job (they should NOT present a tripping hazard). Any deviations or variations in height shall be corrected by the contractor at no cost to the government.

CLOSEOUT REQUIREMENTS

3.1.4 Construction and Demolition Debris

a. The Contractor shall submit copies of all Bills of Lading and Weight Slips associated with the disposal of construction and demolition (C&D) debris and/or recycled materials, under this scope of work. Submit documentation per Appendix A, “Consolidated List of Submittals”.

3.1.5 Cleanup of Work Site

a. The contactor shall clean all work areas and remove all tools, equipment, debris, materials, and all waste from the premises.

b. The contractor shall remove all debris from any remote holding locations, to include any excavation and concrete equipment chute cleanout debris.

c. The contractor shall remove their equipment from Watervliet Arsenal premises within five (5) working days after completion of project work.

3.1.6 Restoration of Work Site

a. The contractor shall repair any items, building surfaces, equipment or miscellaneous items which were damaged during the execution of this SOW. Items that cannot be repaired to restore original function or aesthetics shall be replaced in kind by the Contractor at no additional charge to the Government.

b. Grass, trees, and other vegetation affected by project work shall be restored to same or better condition as existed prior to the start of project work. The Contractor shall prepare the affected areas to eliminate uneven areas and low spots. Remove foreign materials, weeds, and damaged soil. The Contractor shall scratch the area to a depth of three (3) inches where topsoil is to be placed. Spread topsoil to a uniform, compacted depth of less than five (5) inches over areas to be reseeded. Rake until smooth. The Contractor shall seed, fertilize, and water the area to establish grass.

3.1.7 Warranty

a. The contractor shall provide a [1] year warranty on materials and workmanship.

PART 4 APPENDICES

a. Consolidated List of Submittals

b. Quality Assurance Surveillance Plan (QASP)

c. A1 – Site Plan

d. ICRI Technical Guideline 310.2R

APPENDIX A: Consolidated List of Submittals

APPENDIX B: Quality Assurance Surveillance Plan (QASP)

PURPOSE

This Quality Assurance Surveillance Plan (QASP) will be used as a guide to Government Quality Assurance Personnel (QAP). It provides a systematic method to evaluate the services the contractor is required to furnish.

SURVEILLANCE PROCEDURES

Timeliness: Progress is maintained to assure compliance with completion time.

Quality: Conformance with statement of work and industry standards.

Tasks: Performed according to statement of work requirements.

Problem Resolution: Contractor submits deliverables in accordance with the contract and resolves any deficiencies identified by the government in the final submission. Following final submission, contractor resolves any additional deficiencies identified by the government and resubmits and or corrects within one week.

Delivery: Contractor submits each deliverable in accordance with the statement of work and terms of the contract.

PERFORMANCE AREAS

Management Responsiveness: Evaluate the adequacy of the contractor’s responsiveness and their ability to keep the government informed of work progress and provides for early problem identification and effective corrective action plans.

Schedule Control: Evaluate the contractor’s adherence to completion schedule.

Performance: The contractor will be evaluated as to the workmanship and adherence to the statement of work.

EVALUATION CRITERIA

(Outstanding). Indicates performance clearly exceeds contractual requirements. The area of evaluation contains few minor problems for which corrective actions appear highly effective.

(Satisfactory). Indicates performance clearly meets contractual requirements. The area of evaluation contains some minor problems for which the corrective actions appear satisfactory.

(Unsatisfactory). Indicates the contractor failed to satisfy contractual requirements and recovery is not likely in a timely manner. The area of evaluation contains serious problems for which the corrective actions were ineffective.

DOCUMENTATION

Documentation used to perform surveillance will consist of random government inspections and inspection records, as well as the evaluation of final work product delivery by the project COR/COTR.

RATING

Contractor will be given an overall rating of Outstanding, Satisfactory, or Unsatisfactory by the Government Technical point of contact or Contracting Specialist Representative, if appointed, using the above 3 evaluation criteria.