Attachment_1_PWS.docx

PERFORMANCE WORK STATEMENT

(PWS)

FOR

DEMOLITION SERVICES

SEYMOUR JOHNSON AIR FORCE BASE (AFB), NC

Reviewed:

MATTHEW J. MAKDAD, P.E. USAF DATE

Chief of Project Management

CHRIS JOHNSON DATE

Quality Assurance Program Coordinator

APPROVED:

________________________________________ ______________ DEBORAH SCOTT DATE

Contracting Officer

TABLE OF CONTENTS

SECTION TITLE

APPENDICES

1. Definitions and Abbreviations

2. Acronyms

3. Publications

SECTION 1

DESCRIPTION OF SERVICES

1.1 SCOPE OF WORK. The work covered by this specification consists of furnishing all plant, labor, equipment and material, and performing all work in connection with the VKAG 08-1091, Demolition of Facility 102 (414/416 Scriven, formally 102 Vandenburg), Facility 112 (302 Liles) and Facility 113 (304 Liles) at Seymour Johnson AFB in strict accordance with the Specifications and drawings and subject to the terms and conditions of this contract. The contractor shall provide all personnel, equipment, tools, materials, supervision, and other items and services necessary to provide Program/Project Management services as defined in this Performance Work Statement (PWS) at Seymour Johnson Air Force Base (SJAFB) North Carolina. Period of performance is from award for a total of 105 days.

Facility 102 (414/416 Scriven, formally 102 Vandenburg)

Facility 112 (302 Liles) and Facility 113 (304 Liles)

1.1.1 NON-PERSONAL SERVICES. The Government shall neither supervise contractor employees nor control the method by which the contractor performs internal processes related to the Contractor required tasks. The Contractor shall perform the tasks necessary to execute the requirements of this PWS per standard Government processes. Under no circumstances shall the Government assign tasks outside of this scope, or prepare work schedules for individual contractor employees. It shall be the responsibility of the contractor to manage its employees and to guard against any actions that are of the nature of personal services, or give the perception of personal services. If the contractor believes that any actions constitute, or are perceived to constitute personal services, it shall be the contractor's responsibility to notify the Contracting Officer immediately.

1.2 DEMOLITION SERVICES.

1.2.1 PERIOD OF PERFORMANCE. The period designated for material submittals, permit acquisition, and delivery shall be 45 days from date of award. No on site work shall be performed during this period until all identified matters and permit approvals have been resolved. Following the 45 day submittal period, the contractor shall have a demolition performance period of 60 days on site to complete all work.

1.2.2 ON SITE DEMOLITION.

1.2.2.1 The demolition work includes, but is not limited to, all structures associated with affected units: houses, carports, fences, driveways, walkways, porches, patios, and landscaping rocks/bricks/borders. Any portions of the sidewalks to remain that are damaged by the Contractor will be replaced by the Contractor at the discretion of the Contracting Officer at no expense to the Government. The Contractor shall remove the driveway and apron entirely and install new curb/gutter to match existing. Contractor shall patch asphalt pavement to match existing as required (follow NCDOT asphalt and base specifications). Contractor shall also install new sidewalk (if existing on that side of the street) to make a continuous walkway at 302 & 304 Liles. Contractor shall ensure proper drainage of new sidewalks and curb/gutter. The Government’s objective is to accomplish the necessary demolition while minimizing the destruction of trees, bushes, and grassed areas.

1.2.2.2 The requirement to isolate the demolition can be met by using the tree protection fencing. There is no requirement to erect chain link fence. Contractor shall fence the entire area of unit during demolition. The fence is not required during the grading and sodding portions of the work. Streets shall be accessible during demolition.

1.2.2.3 Trees and shrubbery are to be protected by placing fence at the drip line except for instances when the drip line encroaches on the 5 foot line of a unit, in which case the fence will be placed on the 5 foot line. Remove all trees and shrubbery impeding the demolition of said units (within 5 feet of the unit). All others are to be protected.

1.2.2.4 Where slabs, footings, pavements, fence posts, etc. are removed, provide topsoil to return the affected area to grade, ensuring the former building sites are brought to a sufficient elevation to drain to existing drainage features and to prevent ponding. All areas disturbed during the performance of the work shall be backfilled, compacted, graded, top soiled, and sodded with centipede sod. Contractor shall provide erosion and sediment control as required. It is the Contractor’s responsibility to maintain the sod until fully established.

1.2.2.5 Water services and sewer laterals serving the affected units are to be capped at the mains and abandoned in place. Remove/replace sidewalk as required to cap water services and sewer laterals.

1.2.2.6 Ensure no interruptions of service to neighboring users. Existing SFS guard shack near 416 Scriven is currently tapping electrical power from unit. Any wires or cable buried less than one foot below grade must be cut and removed from the building to within 5 feet of the building. All cable TV/telephone cable beyond the 5 foot line shall be abandoned in place below grade. Cable TV/telephone wire buried more than one foot below grade shall be cut one foot below grade and abandoned in place. Service entrance conductors shall be removed back to the termination point of the respective transformer, sectionalizing cabinet, or underground splice feeding the dwelling unit distribution panel. Electrical conduit buried more than one foot below grade shall be cut one foot below grade and abandoned in place.

1.2.2.7 Contractor shall remove/dispose of all mechanical equipment, plumbing fixtures/piping, HVAC items, all electrical, etc. as well as the entire structure/foundation at each site. Contractor shall remove/dispose of HVAC Freon and mercury (thermostats) in accordance with all environmental regulations. Provide documentation as to its disposal.

1.2.2.8 Contractor is responsible for mowing of grassed areas during demolition.

1.2.2.9 It is the Contractor’s responsibility to ensure the disturbed areas provide sufficient drainage. If ponding occurs, it will be the Contractor’s responsibility to repair area to drain.

1.2.2.10 AVAILABILITY OF WORK AREAS. Areas in which demolition work is to be accomplished will be available by the end of the 45 day permit/submittal period.

1.2.2.11 GENERAL PROCEDURES. Before beginning any cutting or demolition work, the Contractor shall carefully survey the existing work and examine the drawings and specification to determine the extent of the work. The Contractor shall take all necessary precautions to ensure against damage to existing work to remain in place or to remain the property of the Government, and any damage to such work shall be repaired or replaced as approved by the Contracting Officer at no additional cost to the Government. Also, prior to any demolition work orange construction fencing must be installed to isolate unit demolition from adjacent units to remain. Fencing to be left in place and maintained until demolition has been completed.

1.2.2.12 Remove existing structures complete including foundations, under slab utilities to a minimum depth of 24” or to the horizontal run of the pipe, driveways, foundations, sidewalks, vinyl fencing, brick sign, and curbs as indicated on the drawings.

1.2.2.13 DUST CONTROL. The amount of dust resulting from demolition shall be controlled to prevent the spread of dust to avoid creation of a nuisance in the surrounding area.

1.2.2.14 DISCONNECTION OF UTILITY SERVICES. Utilities shall be disconnected at the points indicated. Where such disconnection will interrupt the utility services to an area not included in the contract, the contractor shall notify the Contracting Officer at least 72 hours in advance in order that arrangement for such interruption shall be accomplished.

1.2.2.15 BURNING. Burning at the project site will not be permitted.

1.2.2.16 PROTECTION OF EXISTING WORK. Existing work to remain shall be protected from damage. Work damaged by the Contractor shall be repaired to match existing work at no cost to the government.

1.2.2.17 EXPLOSIVES. Use of explosives will not be permitted.

1.2.2.18 EXISTING UTILITIES. Remove, abandon, and relocate existing secondary utilities as indicated. Crimping of water service piping is not allowed.

1.2.2.19 UNSALVAGEABLE MATERIALS. Concrete, masonry and other materials shall be disposed of off Government property.

1.2.2.20 DEBRIS AND RUBBISH. Remove debris and rubbish from the base daily. Do not allow to accumulate in building or on site.

1.2.2.21 DEBRIS CONTROL. Remove and transport debris in a manner as to prevent spillage on streets or adjacent areas.

1.2.3 HAUL ROUTES. The Contractor shall use the haul routes indicated on the plans.

1.2.4 DISPOSITION OF NONSALVABLE MATERIALS. All non-salvable or unusable material shall be disposed of off base as directed by the Contracting Officer. All waste material generated by any work under this contract shall be handled, transported, stored, and disposed of off base, by the Contractor, in accordance with all applicable federal, state, or local laws, ordinances, regulations, court orders, or other types of rules or rulings having the effect of law.

1.2.5 DISPOSITION OF SALVAGEABLE MATERIALS. There is no salvageable material anticipated for this contract.

1.2.6 SUBMITTALS REQUIRED. The following required submittals should be listed on AF Form 66: Permit Application and the Approved Permit from the State.

1.2.7 AF FORM 103, BASE CIVIL ENGINEERING WORK CLEARANCE REQUEST. Prior to any excavation, the Contractor shall mark all locations he plans to excavate, and process an AF Form 103 (commonly called a “digging permit”) to include contacting base agencies on form and getting them to review and sign off in their respective areas. Project drawings with sufficient detail and accuracy are to be attached with the AF Form 103 to provide base agencies the ability to review prior to coordinating on form. No work will be permitted until the Contractor has an approved AF Form 103 on site with the appropriate approval signature in block 17 of the form. Upon receipt of an AF Form 103, (commonly called a “digging permit”) the Contractor shall be responsible for locating all base owned underground utilities, as well as coordinating with local utility companies to stake out utilities if not owned by the base. Historical drawings, as-built drawings, and topographic drawings are available for review at the 4th Civil Engineer Squadron, Engineering Flight, located at 1095 Peterson Avenue, SJAFB. Base owned utilities include, but are not limited to electric, water, sewer, steam, communication, telephone, fiber optic, cathodic protection, and fuel lines. Utilities not owned by the base include, but are not limited to, cable TV, Bell South Telephone and NC Natural Gas. The Contractor shall contact Utility Locator Company (North Carolina 1 Call Center) and the non-base utility companies for location services. In the event that the Contractor damages a utility, which is documented in the plans, records drawings, or located by a utility locator, the Contractor shall repair/replace the utility at no additional cost to the Government. Utilities not documented, shown, or located by a locator shall be considered abandoned or unknown. Contractor damage to unknown or abandoned utilities shall be dealt with as a differing site condition.

1.2.8 SAFETY. All safety requirements of the U.S. Army Corps of Engineers Safety Manual 385-1-1 dated 30 November 2014 will be strictly adhered to as related to all work covered under these specifications.

1.2.9 MATERIALS CONTAINING ASBESTOS. In the event the Contractor discovers materials suspected of containing asbestos that is not identified to be removed in the plans and specifications, the Contractor shall notify the Contracting Officer. The Contractor’s work shall proceed unless the materials suspected of containing asbestos are damaged or disturbed. Any suspected materials damaged or disturbed by the Contractor without permission from the Contracting Officer shall be removed by the Contractor at his expense IAW all applicable Federal, State, and local laws, ordinances, regulations, court orders, or other types of rules or rulings having the effect of law. The government’s expectation is to minimize costs for abatement required including sheetrock containing asbestos, in accordance with all pertinent EPA and OSHA guidelines.

1.2.10 LABELING OF STORAGE DRUMS. All 55 gallon or larger drums brought on base for use under this contract and containing new material or used for storage of waste materials or hazardous waste must be labeled with a Department of Transportation (DOT) Proper Shipping Name, DOT Hazardous Identification Number, the Contractor’s name, a Contractor representative, and the Contractor’s telephone number. Label lettering should have a minimum height of one half inch painted in white paint or other color that is in contrast with the color of the drum. The label should be sufficiently durable to equal or exceed the life (including storage and disposal) of the drum.

1.2.11 CONTRACTOR STORAGE TRAILER(S) AND BUILDING(S). The Contractor shall place or paint a sign on all of his storage trailer(s) and building(s) used on this contract. At a minimum, the sign shall contain the name of the Contractor and a telephone number at which the Contractor can be reached. The trailer(s) and building(s) shall be complete with gates and/or doors which can be locked. Only material for this project shall be stored in the trailer(s) or building(s). The Contractor shall remove the storage trailer(s) or building(s) within 14 days after completion of the contract and prior to submitting his final invoice. The area around the storage trailer(s) and building(s) shall be kept clean. This includes the mowing of grass during the growing season. The lawn mower shall be supplied by the Contractor.

1.2.11.1 The Contractor will be given an area near the construction zone for Contractor Storage for the life of the contract. The Contractor’s progress schedule shall include a line item for final cleanup of this storage lot and restoration of site to previous conditions. Final payment will not be made until this final cleanup is performed by the Contractor and accepted by Seymour Johnson AFB.

1.2.12 CONSTRAINTS. Construction site is located within the Military Family Housing area and all personnel and subcontractor personnel shall provide and display an identification tag showing picture, name of company they represent, and their social security number. This identification shall be visible at all times. All vehicles operated by the contractor or subcontractors shall have visible identification showing name of represented company.

1.3 EARTHWORK

1.3.1 GENERAL. Furnish all labor, materials, tools, equipment, and services for all earthwork, as indicated, in accord with provisions of Contract Documents. Completely coordinate with work of all other trades. Although such work is not specifically indicated, furnish and install all supplementary or miscellaneous items, appurtenances and devices incidental to or necessary for a sound, secure and complete installation.

1.3.2 QUALITY ASSURANCE. Perform all work in accordance with requirements of local and state codes, with requirements of OSHA, and in accord with federal requirements. Tests for Moisture Density Relations of Soils and Soil Aggregate Mixtures Using a 5.5 LB Rammer and a 12 IN Drop -ASTM D698. Tests for Moisture Density Relations of Soils and Soil Aggregate Mixtures Using a 10 LB Rammer and a 18 IN Drop -ASTM D1557. Test Methods for Maximum Index Density of Soils Using a Vibratory Table - ASTM D4253. Test Methods for Minimum Index Density of Soils and Calculation of Relative Density - ASTM D4254. Classification of Soils for Contracting Officering Purposes - ASTM D2487-83.

1.3.3 PRODUCT SOILS. Use soils (other than topsoil) free of organic matter, refuse, rocks and lumps greater than 4 inches in diameter and other deleterious matter.

1.3.3.1 CLASSIFICATION: For the purpose of this specification, soils to be used as fill material are grouped into five classes according to soil properties and characteristics.

1.3.3.2 Class I - Angular, 6 to 40-mm (1/4 to 1-1/2 in.), graded stone, including a number of fill materials that have regional significance such as coral, slag, cinders, crushed stone, crushed gravel, and crushed shells.

1.3.3.3 Class II - Coarse sands and gravels with maximum practical size of 44 mm (1-1/2 in.), including variously graded sands and gravels containing small percentages of fines, generally granular and non-cohesive, either wet or dry. Soil Types GW, GP, SW, and SP are included in this class.

1.3.3.4 Class III - Fine sand and clayey gravels, including fine sands, sand-clay mixtures, and gravel-clay mixtures. Soil Types GM, GC, SM, and SC are included in this class.

1.3.3.5 Class IV - Silt, silty clays, and clays, including inorganic clays and silts of medium to high plasticity and liquid limits. Soil Types MH, ML, CH, and CL are included in this class. These materials are not recommended for bedding, haunching, or initial backfill.

1.3.3.6 Class V - This class includes the organic soils, OL, OH, and PT as well as soils containing frozen earth, debris, rocks, larger than 40 mm (1-1/2 in.) in diameter, and other foreign materials. These materials are not recommended for bedding, haunching or initial backfill.

1.3.4 TOPSOIL. Natural, friable soil free of subsoil, stumps, rocks larger than 3/4 inches in diameter, weeds and other material detrimental to plant growth.

1.3.5 GENERAL FILL. General fill material not otherwise specified shall be Class II or III, Sands.

1.3.6 FILL AND BACKFILL. Selected material from site earthwork or from off site borrow.

1.3.7 EXECUTION. Protect existing surface and subsurface features on site and adjacent to site. Provide barricades, coverings, or other types of protection necessary to prevent damage to existing items indicated to remain in place. Protect and maintain bench marks, and monuments or other established reference points. If disturbed or destroyed, replace at own expense to full satisfaction of Contracting Officer. Verify location and existence of utilities. Omission or inclusion of utility items does not constitute non-existence or definite location. Secure and examine local records for location data. Take necessary precautions to protect existing utilities from damage due to any construction activity. Repair damages to utility items at own expense. Provide full access to premises, fire hydrants, street crossings, sidewalks and other points as designated by Contracting Officer to prevent serious interruption of travel. Maintain stockpiles and earthworks in such a manner to prevent inconvenience or damage to structures on site or adjoining land. Avoid surcharge or earthwork procedures which can result in heaving, caving or slides. Legally dispose of waste materials off site as directed. Burning, as a means of waste disposal, is not permitted.

1.3.8 SITE EARTHWORK AND GRADING. The work includes all operations in connection with earthwork, borrow, construction of fills and embankments, rough grading, and disposal of excess materials in connection with the preparation of the site(s) for construction of the proposed facilities.

1.3.8.1 PROTECTION OF EXISTING FACILITIES. Maintain existing utility lines (either overhead or underground), sidewalks, structures, pavement indicated, free of damage. Any item known or unknown or not properly located that is inadvertently damaged shall be repaired to original condition. Notify Contracting Officer of any utility damage at once so that emergency measures may be taken. All repairs to be made and paid for by Contractor.

1.3.8.2 PROTECTION OF FINISH GRADE. During construction, shape and drain embankment and earthworks. Maintain ditches and drains to provide drainage at all times. Protect graded areas against action of elements prior to acceptance of work. Reestablish grade where settlement or erosion occurs.

1.3.9 BORROW. Provide necessary amount of approved fill compacted to density equal to that indicated in this specification. Fill material to be approved by Contracting Officer or Authorized Representative prior to placement. Four inches of topsoil shall be placed at all disturbed areas.

1.3.10 EMBANKMENTS. Provide fill material which meets the requirements of Part 1.4.3 of this specification and is free from roots, organic matter, trash, frozen material, and stones having maximum dimension greater than 4 inches. Do not place material in layers greater than 8 inches loose thickness. Place layers horizontally and compact each layer prior to placing additional fill.

1.3.10.1 Compact by sheepsfoot, pneumatic rollers, vibrators, or by other equipment as required to obtain specified density. Control moisture for each layer necessary to meet requirements of compaction.

1.3.11 SOIL DENSITY REPORT (REQUIRED ONLY FOR PAVED AREAS). Moisture density requirements for all materials that are to be compacted to be submitted and approved by Contracting Officer. Extent of compaction testing will be as necessary to assure compliance with specifications. Give adequate notice to Contracting Officer when ready for compaction or subgrade testing and inspection. Minimum of 24 hour advance notice to be given. Should any moisture density test fail to meet specification requirements, perform corrective work as necessary. Pay for all costs associated with corrective work and retesting resulting from failing tests.

1.3.12 COMPACTION DENSITY REQUIREMENTS. Perform compaction of soils and all work associated with that effort with equipment designed for and suitable to provide the compaction requirements. Obtain approval of Contracting Officer with regard to suitability of soils and acceptable subgrade prior to subsequent operations. Provide dewatering system necessary to successfully complete compaction and construction requirements. Remove frozen loose, wet or soft material and replace with suitable material. Stabilize subgrade with well graded granular materials as required.

1.3.12.1 Perform density/compaction testing as required to confirm compliance and submit to the Contracting Officer. A minimum of one test per unit is required. Assure by results of testing that compaction densities comply with the following requirements:

Sitework:

Location Compaction Density

Unpaved Areas: 85% ASTM D698 Paved areas: 95% ASTM D698

1.3.13 EROSION CONTROL. Conduct work to minimize erosion of site. Construct stilling areas to settle and detain eroded material. Remove eroded material washed off site. Clean streets daily of any spillage of dirt, rocks or debris from equipment entering or leaving site.

1.4 CONCRETE SIDEWALKS AND CURBS

1.4.1 American Society for Testing and Materials (ASTM) Publications:

C 94-86 (Rev. A) Ready Mixed Concrete

C 171-69 (R 1980) Sheet Materials for Curing Concrete

C 309-81 Liquid Membrane Forming Compounds for Curing Concrete

D 1751-83 Preformed Expansion Joint Fillers for Concrete Paving and Structural Construction (Nonextruding and Resilient Bituminous Types)

D 1850-74 (R 1979) Concrete Joint Sealer, Cold Application Type 1.2 American Concrete Institute (ACE)

1.4.2 American Concrete Institution (ACI):

305R-77 (R-1982) Hot Weather Concreting

306R-78 (R-1983) Cold Weather Concreting

1.4.3 BATCH TICKET. A batch ticket shall be furnished with each batch of concrete prior to unloading at the site in accordance with ASTM C 94, Section 15.

1.4.4.1 Submit Concrete mix design, Membrane Curing compound, and Expansion joint fillers.

1.4.5 CONCRETE. Concrete and the equipment, workmanship, and materials shall conform to the applicable requirements of ASTM C 94 except as specified. Concrete shall be 3,000 psi. The maximum size of coarse aggregate shall be 1 1/2 inches. Concrete shall have a slump of not more than 3 inches. The concrete mixtures shall have air content by volume of concrete of five to seven percent.

1.4.6 MATERIAL OTHER THAN CONCRETE.

1.4.6.1 Concrete Curing Materials. Concrete curing materials shall conform to one of the following:

1.4.6.2 Burlap having a weight of 14 ounces or more per square yard when dry.

1.4.6.3 Impervious sheeting conforming to ASTM C 171.

1.4.6.4 Liquid membrane curing compound conforming to ASTM C 309, type lD, or white pigmented type 2 and shall be free of paraffin or petroleum.

1.4.7 JOINT MATERIALS. Expansion joint fillers shall conform to ASTM D 1751. Joint sealers shall conform to ASTM D 1850.

1.4.8 SUBGRADE PREPARATION.

1.4.8.1 SIDEWALK SUBGRADE. The subgrade shall be constructed true to grade and cross section.

1.4.8.2 CURB AND GUTTER SUBGRADE. The subgrade shall be constructed true to grade and cross section. The subgrade shall be of materials equal in bearing quality to the subgrade under the adjacent.

1.4.9 FORMS.

1.4.9.1 SIDEWALK FORMS. Forms shall be of wood or steel, straight, of sufficient strength to resist springing during depositing and consolidating concrete, and of a height equal to the full depth of the finished sidewalk. Wood forms shall be surfaced plank, two inch nominal thickness, straight and free from warp, twist, loose knots, splits or other defects. Wood forms shall have a minimum of three stakes per 10 feet of form, at maximum spacing of four feet. Corners and deep sections shall have additional stakes and braces, as required. Steel forms shall be channel formed sections with a flat top surface and with welded braces at each end and not less than two intermediate points. Form ends shall be interlocked and self aligning. Forms shall include flexible forms for corner forms, form spreaders, and fillers. Forms shall have a minimum of two welded stake pockets per 10 feet of form. Stake pins shall be solid steel rods with chamfered heads and pointed tips, designed for use with steel forms. Forms shall be set with the upper edge true to line and grade and shall be held rigidly in place by stakes placed at intervals not to exceed four feet. After forms are set, grade and alignment shall be checked with a 10 foot straightedge. Forms shall conform to line and grade with an allowable tolerance of 1/8 inch in any 10 foot long section. Forms shall be coated with form oil each time before concrete is placed. Wood forms may, instead, be thoroughly wetted with water before concrete is placed, except that with probable freezing temperatures, oiling is mandatory. Side forms shall not be removed for less than 12 hours after finishing has been completed.

1.4.9.2 CURB AND GUTTER FORMS. Forms shall be made of steel, straight, and of sufficient strength to resist springing during depositing and consolidating the concrete. The outside forms shall have a height equal to the full depth of the curb or gutter. The inside form of curb shall have batter as indicated and shall be securely fastened to and supported by the outside form. Steel forms shall be channel formed sections with a flat top surface and with welded braces at each end and at not less than two intermediate points. Form ends shall be interlocked forms, form spreaders, and filler. Forms shall have a nominal length of 10 feet, with a minimum of two welded stake pockets per form. Rigid forms shall be provided for curb returns, except that benders of thin plank forms may be used for curb returns with a radius of 10 feet or more, where grade changes occur in the return, or where the central angle is such that a rigid form with a central angle of 90 degrees cannot be used. Back forms for curb returns may be made of 1/2 inch benders, for the full height of the curb, cleated together. Curb forms shall be carefully set to alignment and grade and to conform to the dimensions of the curb. Forms shall be held rigidly in place by the use of stakes placed at intervals not to exceed four feet. Clamps, spreaders, and braces shall be used where required to ensure rigidity in the forms. The forms on the front of the curb shall be removed not less than two hours nor more than six hours after the concrete has been placed. Forms for back of curb shall remain in place until the face and top of the curb have been finished as specified in Paragraph 7: CONCRETE PLACEMENT AND FINISHING. Gutter forms shall not be removed for 12 hours after the concrete has been placed. Forms shall not be removed while the concrete is sufficiently plastic to slump in any direction. Forms shall be cleaned and coated with form oil each time before concrete is placed.

1.4.10 CONCRETE PLACEMENT AND FINISHING.

1.4.10.1 SIDEWALK CONCRETE. Concrete shall be placed in the forms in one layer of such thickness that when compacted and finished the sidewalk will be of the thickness indicated (match existing). After concrete has been placed in the forms, a strike off guided by side forms shall be used to bring the surface to proper section to be compacted. The concrete shall be tamped and consolidated with a suitable wood or metal tamping bar, and the surface shall be finished to grade with a wood float. Finished surface of the walk shall not vary more 3/16 inch from the testing edge of a 10 foot straightedge. Irregularities exceeding the above shall be satisfactorily corrected. The surface shall be divided into rectangular areas by means of contraction joint spaced at not more than four feet on center.

1.4.10.2 CONCRETE FINISHING. After straightedging, when most of the water sheen has disappeared, and just before the concrete hardens, the surface shall be finished to smooth and uniformly fine granular or sandy texture, free of waves, irregularities, or tool marks. A scored surface shall be produced by brooming with a steel wire or stiff, coarse, fiber broom.

1.4.10.3 EDGE AND JOINT FINISHING. All slab edges, including those at formed joints, shall be finished carefully with an edger and have a radius of 1/8 inch. The brooming shall eliminate the flat surface left by the surface face of the edger. Corners and edges which have crumbled and areas which lack sufficient mortar for proper finishing shall be cleaned and filled solidly with a properly proportioned mortar mixture and then finished.

1.4.10.4 CONTRACTION JOINTS. The contraction joints shall be formed in the fresh concrete by tooling a groove in the top portion of the slab to a depth of at least 1/4 of the sidewalk slab thickness.

1.4.10.5 EXPANSION JOINTS. Transverse expansion joint shall be installed at sidewalk returns and opposite expansion joints in adjoining curbs. Transverse expansion joints shall be installed every 20 feet unless otherwise indicated. Transverse expansion joints shall be filled with 1/2 inch thick joint filler strips. Joint filler shall be placed with top edge 1/4 inch below the surface and shall be held in place with steel pins or other devices to prevent warping of the filler during floating and finishing. Immediately after finishing operations are completed, joint edges shall be rounded with an edging tool having a radius of 1/8 inch, and concrete over the joint filler shall be removed. Expansion joints shall be formed about structures and features that project through or into the sidewalk pavement, using joint filler of the type, thickness, and width indicated. The filler shall be installed in such a manner as to form a complete, uniform separation between the structure and sidewalk pavement. At the end of the curing period, expansion joints shall be carefully cleaned and filled with joint sealer. Concrete at the joint shall be surface dry; and the atmospheric and pavement temperatures shall be above 50oF at the time of application of joint sealing materials. Joints shall be filled with joint sealant flush with the concrete surface in such a manner as to minimize spilling on the walk surface. Spilled sealing material shall be removed immediately and the surface of the walk cleaned. Contraction joints shall not be sealed.

1.4.10.6 SURFACE UNIFORMITY. The completed surface shall be uniform in color and free of surface blemishes and tool marks.

1.4.11 CURING AND PROTECTION.

1.4.11.1 CURING. Immediately after the finishing operation, exposed concrete surfaces shall be cured by one of the following methods as the Contractor may elect.

1.4.11.2 MAT METHOD. The entire exposed surface shall be covered with two or more layers of burlap. Mats shall overlap each other at least six inches. The mat shall be thoroughly wetted with water prior to placing on concrete surface and shall be kept continuously in a saturated condition and in intimate contact with concrete for not less than seven days.

1.4.11.3 IMPERVIOUS SHEETING METHOD. The entire exposed surface shall be wetted with a fine spray of water and then covered with impervious sheeting material. Sheets shall be laid directly on the concrete surface with the light colored side up and overlapped 12 inches when a continuous sheet is not used. The curing medium shall not be less than 18 inches wider than the concrete surface to be cured, and shall be securely weighted down by heavy wood planks, or by placing a bank of moist earth along edges and laps in the sheets. Sheets shall be satisfactorily repaired or replaced if torn or otherwise damaged during curing. The curing medium shall remain on the concrete surface to be cured for not less than seven days.

1.4.11.4 MEMBRANE CURING METHOD. The entire exposed surface shall be covered with a membrane forming curing compound. Where type one curing compound is used, the concrete surface shall be shaded from the direct rays of the sun during the curing period. Curing compound shall be applied in two coats by hand operated pressure sprayers at a coverage of approximately 200 square feet per gallon for both coats. The second coat shall be applied in a direction approximately at right angles to the direction of application of the first coat. The compound shall form a uniform, continuous, coherent film that will not check, crack, or peel and shall be free from pinholes or other imperfections. Apply an additional coat to all surfaces showing discontinuity, pinholes or other defects. Concrete surfaces that are subjected to heavy rainfall within three hours after curing compound has been applied shall be resprayed by the above method and at the above coverage at no additional cost to the Government. Expansion joint openings shall be sealed at the top by inserting moistened paper or fiber rope or covering with strips of waterproof paper prior to the application of the curing compound, in a manner to prevent the curing compound entering the joint. Concrete surfacers to which membrane curing compounds have been applied shall be adequately protected for seven days from pedestrian and vehicular traffic and from any other action that might disrupt the continuity of the membrane. Any area covered with curing compound and damaged by subsequent construction operations within the seven day curing period shall be resprayed as specified above at no additional expense to the Government.

1.4.11.5 BACKFILLING. After curing, debris shall be removed, and the area adjoining the concrete shall be backfilled, graded, and compacted to conform to the surrounding area.

1.4.11.6 PROTECTION. The completed concrete shall be protected from damage until accepted. The Contractor shall repair damaged concrete and clean concrete discolored during construction. Concrete that is damaged shall be removed and reconstructed for the entire length between regularly scheduled joints. Refinishing the damaged portion will not be acceptable. Removed damaged portions shall be disposed of off base.

1.4.12 FIELD CONTROL TESTS. Testing is the responsibility of the Contractor at no additional cost to the Government. A slump test shall be taken at the form for each delivery of concrete. The slump shall be not more than three inches. All testing shall be made in accordance with ASTM C-94 unless otherwise specified. Slump tests shall be made in the presence of the Contracting Management representative.

1.4.13 COLD WEATHER CONCRETING. Contractor shall use ACI 306.

1.4.14 HOT WEATHER CONCRETING. Contractor shall use ACI 305.

1.5 SOD

1.5.1 PLANTING DATES. The planting period shall be from 15 March to 15 September. If planting sod cannot be scheduled between these dates, contractor must coordinate with the government. The contractor shall ensure the sod is watered and maintained until fully established.

1.5.2 MATERIALS. Backfill material shall be of equal quality to the surrounding topsoil.

1.5.3 SOD. Sod shall be centipede grass, strongly rooted, and reasonably free of pernicious weeds and apparent disease. All sod shall be freshly cut and installed in place within 24 hours. Thickness of sod shall be two inches. The sod will be inspected during laying operations, and any sod which has been permitted to dry out or become otherwise injured during transportation or storage so that its survival after placing has been rendered doubtful will be rejected. All sod shall be of uniform thickness.

1.5.4 FERTILIZER. Ten pounds of 10-10-10 fertilizer per 1000 square feet of area shall be used. (10-10-10 referring to the amounts of nitrogen, phosphorous, and potassium).

1.5.4.1 Sufficient amount of lime or sulfur shall be used to adjust the pH of the soil to 5.5.

1.5.5 SOIL PREPARATION. Those areas in Corvias Housing disturbed by the Contractor shall be disked and tilled a minimum depth of three inches. The Contractor shall be responsible for taking a soil sample, sending it to North Carolina State University for a pH analysis test. The Contractor shall be responsible for amending the soil as per NC State recommendations (submit results and recommendations to Contracting Officer). The existing grass, mulch, stones over one half inch in size, sticks and rubbish, and excess soil shall be removed only after the soil is adjusted to the specified pH. No heavy objects except lawn rollers shall be removed over sodded areas after subgrade soil has been scarified.

1.5.6 SODDING. The sod shall be laid smoothly, edge to edge, and with staggered joints. Sod shall be pulled tight so that there are no gaps. The sod shall immediately be pressed firmly into contact with the sod bed using a light-weight turf roller or other approved equipment, so as to eliminate all air pockets, provide a true and even surface, and ensure knitting without displacement of the sod or deformation of the surfaces of sodded areas. Following compaction, screened soil of good quality shall be used to fill all cracks between sods. Excess soil shall be worked into the grass with rakes or other suitable equipment. The quantity of fill soil shall be such as will cause no smothering of the grass.

1.5.7 FINISHING. After the sodding operation has been completed, the edges of the area shall be smooth. On slopes steeper than 2 to 1 and elsewhere when so shown, the sod shall be fastened in place with suitable wooden pins or by other approved methods. The sod shall be watered and irrigated immediately after placement. Sufficient water shall be applied to wet the sod thoroughly and to wet the sod bed at least two inches deep. Watering shall be done in a manner that will avoid erosion due to the application of excessive quantities, and the watering equipment shall be of a type that will prevent damage to the finished surface.

1.5.8 MAINTENANCE. Sodded areas shall be maintained, cut, and watered as necessary until fully established following installation of the sod. When any portion of the surface becomes gullied or otherwise damaged after any part of the area has been sodded, the affected portion shall be repaired to re-establish the condition and grade of the soil prior to sodding and shall then be re-sodded as previously specified.

SECTION 2

2.1 BUSINESS RELATIONS. The contractor shall successfully integrate and coordinate all activity needed to execute the requirement. The contractor shall manage the timeliness, completeness, and quality of work. The contractor shall provide corrective action plans, timely identification of issues, and effective management of the program. The contractor shall seek to ensure customer satisfaction and professional and ethical behavior.

2.2 CONTRACT MANAGEMENT. The contractor shall establish clear organizational lines of authority and responsibility to ensure effective management of the resource assigned to the requirement. The contractor must maintain continuity between the support operation at Seymour Johnson AFB NC and the contractor's corporate offices. The Contractor shall provide the necessary resources and infrastructure to manage, perform, and administer the contract.

2.3 CONTRACT ADMINISTRATION. The contractor shall establish processes and assign appropriate resources to effectively administer the requirement. The contractor shall respond to Government requests for contractual actions in a timely fashion. The contractor shall have a single point of contact between the Government and Contractor personnel assigned to support the contract. The contractor shall coordinate the work effort and maintain proper and accurate time keeping records of personnel assigned to work on the requirement.

2.4 PERSONNEL ADMINISTRATION. The contractor shall provide the following management and support as required. The contractor shall provide for employees during designated Government holidays, non-work days, or other periods where Government offices are closed due to weather or security conditions. The contractor shall maintain the currency of their employees by providing initial and refresher training as required to meet the PWS requirements. The contractor shall make necessary travel arrangements for employees. The contractor shall provide necessary infrastructure to support contract tasks, such as mobile phone, transportation, special office supplies, etc. The Contractor shall provide the representative(s) with a mobile phone during each duty day. The representative(s) shall be accessible by phone while out of the office during each duty day. The contractor shall provide administrative support to employees in a timely fashion (time keeping, leave processing, pay, emergency needs). The number of hours included in the Contract account for full time work and account for weekend and federal holidays as non-work days. Paid holidays, vacation, family leave, and/or sick time is the responsibility of the Contractor. Absences of more than 5 consecutive business days shall require a temporary replacement at the discretion of the Government.

2.5 SUBCONTRACT MANAGEMENT (IF UTILIZED). The contractor shall be responsible for any subcontract management necessary to integrate work performed on this requirement and shall be responsible and accountable for subcontractor performance on this requirement. The prime contractor will manage work distribution to ensure there are no Organizational Conflict of Interest (OCI) considerations. Contractor may replace the subcontractor on their team after notification to the Contracting Officer (CO).

2.6 QUALITY CONTROL. The contractor shall develop and maintain a quality program to ensure services are performed IAW applicable directives and this PWS. The contractor shall develop and implement procedures to identify, prevent, and ensure non-recurrence of defective services. Additionally, the contractor shall implement procedures to ensure appropriate corrective action for non-conforming services. The contractor is to provide a copy of their plan to the Government within 30 calendar days of contract award.

2.7 QUALITY ASSURANCE. The Government may inspect the contractor’s performance at any time during the duration of this contract. The Government may inspect each task as completed or increase the number of quality assurance inspections if deemed appropriate because of repeated failures. Likewise, the Government may decrease the number of inspections if performance dictates. The Government reserves the right to inspect the entire contractor’s performance to ensure proper services.

SECTION 3

GOVERNMENT FURNISHED PROPERTY AND SERVICES.

3.1 Government Furnished Facilities: The Government will provide a single workspace (not private). Government facilities have been inspected for compliance with Occupational Safety and Health Act (OSHA). No hazards have been identified for which workarounds have been established. Should a hazard be subsequently identified, the government corrects OSHA hazards in according to base wide government developed and approved plans of abatement taking into account safety and health priorities. A higher priority for correction will not be assigned to the facilities provided there under merely because of this contracting initiative. The fact that no such conditions have been identified does not warrant or guarantee that no possible hazard exists, or that work-around procedures will not be necessary or that the facilities as furnished will be adequate to meet the responsibilities of the contractor. Compliance with the Occupational Safety and Health Act and other applicable laws and regulations for the protection of employees is exclusively the obligation of the contractor. Further, the government will assume no liable responsibility for the contractor’s compliance or noncompliance with such requirements, with the exception of the aforementioned requirement to make corrections in accordance with approved plans of abatement subject to base wide priority. In the case of alterations necessary for compliance with the OSHA, such permission shall not be unreasonably withheld. The contractor shall return the facility work space to the Government in the same conditions as received. This work space shall only be used in performance of this contract.

3.2 GOVERNMENT FURNISHED MATERIALS/EQUIPMENT/INFORMATION: Unclassified workstation/computer equipment, basic office supplies, telephone/fax, electronic mail, reproduction facilities, and CAC. The Government will furnish standard AF computer profile/image and standard software which may be needed to accomplish tasks at the government site. The Government will provide access to appropriate reference material and databases necessary in the performance of this effort. The contractor will be provided the authority to access all information required to perform duties. The Government will provide coordination assistance to assist the contractor in accessing required information. The Government will provide the following information: access to relevant Government organizations/POCs, information and documentation, manuals, texts, briefs and associated materials, as required and available.

3.3 GOVERNMENT FURNISHED SERVICES.

3.3.1 Telephone Services: The Government will supply telephone/fax (local, DSN and long distance) service for official government business use and shall not be used to transact personal business by contractor or his employees.

3.3.2 Local Area Network: The Government shall provide electronic mail and LAN capability to facilitate communications with government personnel. This includes connectivity that interfaces with existing PC- based government systems, access to Government email system and standardized software (Microsoft based), and access via internet using security protocols required by Government to assure secure data transmission. NOTE: Contractor shall not attached any devices (i.e. camera, portable HDD, flash drive, phones, etc.) to the AF network computers. Information can be transmitted via CD-ROM or email, with use of virus scanning before transfer and after transfer prior to opening.

3.3.3 Other Base Civil Engineer Services: The Government will provide fire prevention/protection and medical emergency services.

3.3.4 Security Forces: The Government will provide general on-base police service.

SECTION 4

GENERAL INFORMATION

4.1 CONTRACTOR PERSONNEL.

4.1.1 Contract Manager: The contractor shall designate in writing, a contract manager (CM) and at least one alternate(s) who shall be responsible for the performance of the PWS. The contractor shall provide these names to the Contracting Officer within 5 calendar days of award. Designate the contract manager and alternate, who shall be responsible for the overall supervision and control of all contractor services and personnel, required to satisfy the requirement of this PWS and will also function as the technical representative. The CM and alternate shall have full authority to act for the contractor on all contract matters relating to daily operations. The CM or alternate shall be available to meet/teleconference with government personnel within 1 business day of notification during normal operating.

4.1.2 Contractor Employees: The contractor shall not employ persons for work on this contract if such employee is identified as a potential threat to the health, safety, security, general well-being or operational mission of the installation and its population.

4.1.3 Contractor personnel shall possess a valid United States driver’s license.

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