Attachment_1_-_NPS_NAMA_Waterline_Final_Specifications_06-2017.pdf

NATIONAL MALL AND MEMORIAL PARKS

WASHINGTON, D.C.

REHABILITATE WATER SYSTEMS

FOR EMERGENCY AND POTABLE WATER

SUPPLY IN WEST POTOMAC PARK

NAMA - 151059D

PROJECT SPECIFICATIONS

NATIONAL PARK SERVICE

DENVER SERVICE CENTER

JUNE 2017

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TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

01 11 00 Summary of Work ....................................................................................................... 1-6 01 26 01 Contract Modification Procedures .............................................................................. 1-6 01 27 00 Definition of Contract Line Items ............................................................................. 1-11 01 31 00 Project Management and Coordination ...................................................................... 1-9 01 32 16 Construction Schedule ................................................................................................. 1-9 01 32 33 Photo Documentation for Historic Preservation Projects ........................................... 1-2 01 33 23 Submittal Procedures ................................................................................................... 1-8 Supplement:

Submittal List 01 35 13.22 Archeological Protection ............................................................................................. 1-3 01 35 23 Safety Requirements .................................................................................................... 1-4 01 35 91 Historic Preservation Treatment Procedures .............................................................. 1-7 01 40 00 Quality Requirements .................................................................................................. 1-7 01 42 00 References .................................................................................................................. 1-25 01 50 00 Temporary Facilities and Controls .............................................................................. 1-8 01 56 39 Temporary Tree and Plant Protection ......................................................................... 1-7 01 57 23 Storm Water Pollution Prevention Plan ...................................................................... 1-7 01 67 00 Product Requirements ................................................................................................. 1-7 Affirmative Procurement Reporting Form 01 73 29 Cutting and Patching ................................................................................................... 1-4 01 73 40 Execution ..................................................................................................................... 1-6 01 74 19 Construction Waste Management and Disposal ......................................................... 1-8 01 74 19A Appendix A, Project Waste Management Plan Worksheet 01 74 19B Appendix B, Standard Solid Waste Conversions 01 77 00 Closeout Procedures .................................................................................................... 1-4 Supplement:

Closeout and Operation and Maintenance Requirements 01 78 23 Operation and Maintenance Data ................................................................................ 1-9 Supplement:

Equipment Data Sheet

DIVISION 2 – EXISTING CONDITIONS

02 41 19 Selective Demolition ................................................................................................... 1-5

DIVISION 3 – CONCRETE

03 30 00 Cast-In-Place Concrete .............................................................................................. 1-10

DIVISION 4 – DIVISION 30

Not Applicable

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TABLE OF CONTENTS

DIVISION 31 – EARTHWORK

31 23 16 Excavation ................................................................................................................... 1-2 31 23 19.01 Dewatering ................................................................................................................... 1-2 31 23 23.15 Trench Backfill ............................................................................................................ 1-6 31 41 00 Shoring ......................................................................................................................... 1-2 31 90 00 Geotechnical Instrumentation ..................................................................................... 1-6

DIVISION 32 – EXTERIOR IMPROVEMENTS

32 11 23 Aggregate Base Courses .............................................................................................. 1-5 32 12 16 Asphalt Paving ............................................................................................................. 1-6 32 13 13 Concrete Paving ......................................................................................................... 1-12 32 16 00 Curbs and Gutters ........................................................................................................ 1-4 32 17 23 Pavement Markings ..................................................................................................... 1-3 32 91 13 Soil Preparation ........................................................................................................... 1-4 32 92 00 Turf and Grasses .......................................................................................................... 1-8

DIVISION 33 – UTILITIES

33 05 01.02 Ductile Iron Pipe and Fittings ..................................................................................... 1-8 33 05 01.10 High-Density Polyethylene (HDPE) Pressure Pipe and Fittings ............................... 1-8 33 05 16.13 Precast Concrete Utility Structure ............................................................................... 1-4 33 05 23.13 Utility Horizontal Directional Drilling ..................................................................... 1-14 33 12 13 Water Service Connections ......................................................................................... 1-7 33 12 16 Water Utility Distribution Valves ............................................................................... 1-4 33 12 16.29 Air Release Valve Assemblies .................................................................................... 1-4 33 12 19 Water Utility Distribution Fire Hydrant ..................................................................... 1-4 33 13 00 Disinfection of Water Utility Distribution Facilities .................................................. 1-4

DIVISION 34 – DIVISION 49

Not Applicable

END OF SECTION

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091015 SUMMARY OF WORK

SECTION 01 11 00 - SUMMARY OF WORK

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes the following:

1. Work covered by the Contract Documents.

2. Work phases.

3. Work under other contracts.

4. Government Furnished Materials.

5. Contractor use of premises.

6. Public use of site.

7. Work Restrictions.

8. Special Construction Requirements.

9. Sub-surface Utility Locates

10. Soils Investigation Report.

1.2 WORK COVERED BY CONTRACT DOCUMENTS

A. Project Location:

1. National Mall in Washington, DC, extending from the Lincoln Memorial to the Washington Monument, and from Constitution Avenue to Independence Avenue.

2. The Work is subject to National Park operations in many ways that may not be avoided.

The possible impacts may include high pedestrian (tourist) activities, national holidays, and many special events, both scheduled and unscheduled. This may result in the need for rapid changes to the Work schedule.

B. The Work consists of the following:

1. The Work includes the replacement of old existing water mains with new pipelines, valves, water meters, and new service connections to various existing irrigation systems, concessions, public bathrooms, fire hydrants, and water fountains.

2. Refurbish two existing old master water meter vaults with new piping and set new master water meters to be furnished by DC Water.

3. Provide a new vault to contain a double check backflow preventer.

4. New pipeline work will generally be performed using a ‘trench-less” technology to minimize disruption to National Park operations and environmental impacts to Park lands.

C. Project will be constructed under a single prime contract.

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1.3 WORK UNDER OTHER CONTRACTS

A. General: Cooperate fully with Government so work may be carried out smoothly, without interfering with or delaying work under this contract or work by Government. Coordinate the Work of this Contract with work performed by Government

B. Concurrent Work: Government will award a separate contract for the following construction operations affecting the Project site. Those operations will be conducted simultaneously with work under this Contract.

1. Washington Monument Visitor Screening Facility Upgrade Project, NAMA 151073:

A separate contract will be awarded at approximately the same time as this contract. The work will include upgrades to the Washington Monument Visitor Screening Facility and includes substantial upgrades to supporting utilities. It will be necessary for the contractor to coordinate pipe installation activities with the Screening Facility contractor to minimize impacts to each contractor's respective project. Once initiated, the waterline work in this area shall be completed within a 3-week period.

1.4 WORK PHASES

A. The Work shall be conducted in phases and as to allow continued water service at all times to all structures on the National Mall.

B. All work shall be complete and ready for occupancy within 365 days from notice to proceed.

C. A detailed phasing plan will be developed by the contractor and approved by the park. The phasing plan will demonstrate a sequencing of events that 1) minimizes impact to the visitor experience at the park; 2) minimizes service interruptions to the park facilities; 3) details startup of the newly installed waterlines.

D. All work performed within the project area is subject to seasonal and holiday restrictions.

Coordinate with the Contracting Officer and the Park for all scheduled events and activities that take place in project area, and suspend work activities or demobilize from specific project areas as required.

1.5 CONTRACTOR USE OF SITE

A. General: All monuments will remain open during the construction project. Vehicle and pedestrian traffic must be detoured around defined work areas. Contractor shall have full use of defined, pre-approved and fenced-in work areas for construction operations during the construction period.

Contractor’s use of the preapproved work areas is limited by the Government’s right to direct timing and duration of operations which affect pedestrian and traffic access by visitors to nearby features. These short duration detours of sidewalks require advance approval by Government, and installation of appropriate barriers and detour signage, similar to depictions on the drawings.

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B. Driveways and Entrances: Keep driveways, sidewalks, and entrances serving premises clear and available to Government, Government's employees, and emergency vehicles at all times. Do not use these areas for parking or storage of materials.

1. Schedule deliveries to minimize use of driveways and entrances.

2. Schedule deliveries to minimize space and time requirements for storage of materials and equipment on-site.

3. Minimize temporary layout of fused pipe crossing driveways and sidewalks.

C. Contractor shall at all times conduct his operations to ensure the least inconvenience to the public.

Limited building and sidewalk closures will be permitted, when required, upon specific approval of Contracting Officer for a maximum of 5 working days. Closures will not be allowed for any roads, concessions, nor any national monuments.

D. Storage of Materials: Confine storage of materials to the designated staging areas shown on the drawings.

E. Preservation of Natural Features:

1. Prevent damage to natural surroundings. Restore damaged areas, repairing or replacing damaged trees and plants, at no additional expense to the Government.

2. Provide temporary barriers to protect existing trees and plants and root zones.

3. Do not remove, injure, or destroy trees or other plants without prior approval. Consult with

Contracting Officer and remove agreed-on roots and branches that interfere with construction.

4. Do not fasten ropes, cables, or guys to existing trees.

5. Carefully supervise excavating, grading, filling, and other construction operations near trees to prevent damage.

F. Tree and Shrub Work: Where tree and shrubs must be removed or trimmed to perform work, develop a plan for work and submit to the Contracting Officer for approval. Trees with a diameter larger than 44 inches also require a special tree removal permit from the District of Columbia.

G. Construction Camp: Establishment of a camp within the park will not be permitted.

H. Hauling Restrictions: Comply with all legal load restrictions in the hauling of materials. Load restrictions on park roads are identical to the state load restrictions with such additional regulations as may be imposed by the Park Superintendent. Information regarding rules and regulations for vehicular traffic on park roads may be obtained from the Office of the Park Superintendent. A special permit will not relieve Contractor of liability for damage which may result from moving of equipment.

1.6 CONDUCT OF OPERATIONS

A. At all times the contractor shall conduct his operations in conformance with the rules and regulations promulgated by the Secretary of the Interior for the National Park Service, and applicable park rules and regulations prescribed by the Park Superintendent.

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B. Work on Saturdays, Sundays, Federal holidays or at night may not be performed without prior consent from the Contracting Officer. Submit requests 3 business days in advance of the work to the Contracting Officer for approval.

C. No signs or advertisements (except those specified herein) shall be displayed on the construction site or within the park unless approved by the Contracting Officer.

1.7 WORK RESTRICTIONS

A. On-Site Work Hours: Work shall be generally performed during normal business working hours of 7:00 a.m. to 5:00 p.m., Monday through Friday, except when otherwise indicated. Work requests for work needed to be performed outside for normal business hours will be submitted at least 3 business days prior to the Contracting Officer for approval.

B. Existing Utilities

1. Existing Utilities: Notify Contracting Officer and utility companies of proposed locations and times for excavation.

2. Contractor shall be responsible for locating and preventing damage to known utilities. If damage occurs, repair utility at no additional expense to the Government.

3. If damage occurs to an unknown utility, repair utility. An equitable adjustment will be made in accordance with the Changes clause of the contract.

C. Existing Utility Interruptions: Work will be done in accordance with subarticle 1.3 in this section in order to minimize utility interruptions. Interruptions of service to facilities occupied by Government or others is prohibited unless permitted and then only after arranging to provide temporary utility services according to requirements indicated:

1. Notify Contracting Officer not less than 7 days in advance of proposed utility interruptions.

2. Do not proceed with utility interruptions without Contracting Officer’s written permission.

3. Hours for Utility Shutdowns: Utility shutdowns will be scheduled to minimize impact on park operations.

D. Water Supply Outages:

1. Perform work in accordance with subarticle 1.3 in this section, and as indicated below.

2. Potable Water Main Lines:

a. Existing water mains within the project area are arranged in a looped network with multiple interconnections.

b. Construct new water mains as shown in parallel with existing lines remaining in full operation.

c. Completely test and disinfect new water main segments, then make connection to the main system by disconnection of the existing main at one point and establishing service to both lines. Water supply outage of main lines is prohibited.

d. When approved by the CO, make service connections to all existing facilities until none remain on the old, existing line. Then shut down, disconnect, and abandon the old, existing line.

e. Finally, make the connection from the new main line to the existing main system to reestablish the looped water network.

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3. Service Connections and Lines:

a. Many services lines will be encountered within the project area. These are not completely known, but expected to include service outage restrictions as follows:

b. Private Concessions: No outage during normal working hours.

c. Monument Fire Supply Lines: 24 hours.

d. Fire Hydrants: 8 hours.

e. Irrigation Systems: 8 hours (between April 15 and October 15).

f. Monument Water Features: 72 hours (Reflection Pool, WWII, FDR, memorial fountains.

g. Public Restrooms: 72 hours (weekdays only).

E. Nonsmoking Building: Smoking is not permitted within the building or within 50 feet of entrances, operable windows, or outdoor air intakes.

1.8 SPECIAL CONSTRUCTION REQUIREMENTS

A. Project Website: A project website administered by the NPS will be used for purposes of managing communication and documents during the construction stage.

1. See Section 01 31 00 “Project Management and Coordination” for requirements on using the Project Website.

B. Limited Access: Coordinate work with park operations for seasonal shutdown, park activities, and public events.

C. Secure Areas: A portion of the work is required within the secure areas which surround some of the national monuments. These include the Lincoln Memorial, Washington Monument, and the Jefferson Memorial. Special construction requirements apply which may include the following:

1. Coordinate with Park Police for access and security screening of all vehicles.

2. Vehicle screening may be performed by Park Police K-9. Limited availability of screening animals may cause delay.

3. Perimeter barriers may limit the size of vehicles which can access these areas.

4. Contractor will submit a specific work plan for all activities within secure areas.

1.9 SUBSURFACE UTILITY LOCATES

A. Perform sub-surface locates to verify existing utilities and identify Park owned utilities within the project limits.

1. The contract plans are prepared from multiple sources and represent the best information available, but is known to contact inaccurate data.

2. This work requires an “elevated level” of effort beyond simple verification of records. This shall include:

a. Broadening investigative areas to locate utilities shown on documents in acknowledgement that some record documents have been proven inaccurate.

b. Closely examine local surface features for indications of buried utilities may be present. Features may include surface depressions, pavement cuts/irregularities, pedestals, valves, visible services entrances to buildings, and other similar.

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3. Park owned utilities include communications/data cables/ductbanks, street lighting cables, water main pipes, irrigation and service lines, storm and sanitary sewers, steam tunnels, and other underground structures.

B. Prepare and submit accurate utility location plans for approval prior to commencing work.

1.10 SUBSURFACE INVESTIGATION REPORT

A. General soils investigation information is available in the following reports:

1. Report of Geotechnical Data, NAMA Rehabilitate Potable Water Lines; Washington, DC, F&R Project No. 72U0289, April 24, 2017, Froehling & Robertson, Inc., Dulles, Virginia.

2. Subsurface Investigation, Monument Grounds and Visitor Facility, Washington Monument, Washington DC, June 10, 2002, Muesser Rutledge Consulting Engineers, NY, NY.

3. Geotechnical Engineering Report, Relocation of Lockkeeper’s House, 17th Street and Constitution Avenue, NW, Washington, DC, May 22, 2015, Schnabel Engineering.

4. Subsurface Utility Location and Data Reports:

a. Test Hole Certification Form, Utility Quality Level A Data; So-Deep Inc., April 19, 2017, Manassas Park, VA.

b. Underground Utility Location Report; So-Deep Inc., May 11, 2017, Manassas Park, VA.

B. A copy of the report is available to all plan holders with this package.

C. If conflicts occur between the report and drawings or specifications, the drawings and specifications govern.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION (Not Used)

END OF SECTION 01 11 00

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031414 CONTRACT MODIFICATION PROCEDURES

SECTION 01 26 01 – CONTRACT MODIFICATION PROCEDURES

PART 1 - GENERAL

1.1 SUMMARY

A. The work of this section consists of administrative and procedural requirements for contract modifications.

1.2 DEFINITIONS AND ALLOWANCES

A. Home Office Overhead: Those costs incurred in support of all of a contractor’s projects and not attributable to a specific job. The cost for home office overhead is only allowed as a percentage of all direct work excluding profit. The following items represent allowable home office overhead costs identified in Part 31 of the Federal Acquisition Regulation (FAR):

1. Rent

2. Utilities

3. Furnishings

4. Office equipment

5. Executive and management staff not exclusively assigned to the project

6. Support, accounting, and administrative staff

7. Preparation of cost proposals, estimating, and schedule analyses connected with

Modifications

8. Estimating and preconstruction services

9. Mortgage costs

10. Real estate and corporate taxes

11. Automobile maintenance and travel costs for home office personnel

12. Home office insurances i.e. structure, automotive, umbrella, flood, etc.

13. Depreciation of equipment and other assets

14. Home office supplies (paper, staples, etc.)

15. Legal services

16. Accounting and data processing

17. Professional fees/registration

B. General Conditions (Field Office Overhead): Management and administrative costs incurred on site for the designated project. Costs associated with the preparation of modifications will not be allowed. The costs for these items are to be included only in the general conditions of the modification estimate. Only in the case of a contract time extension are additional general conditions included in modifications. The following items, if applicable, are considered allowable costs for calculating General Conditions:

1. Project Manager, Assistant Project Manager

2. Superintendent, Assistant Superintendent

3. Quality Control, Safety Officer, Environmental Manager, etc.

4. Engineers

5. Travel, lodging, and per diem (as established by Federal Travel Regulations)

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6. Scheduling

7. Field Office Trailers and associated temporary utilities

8. Field office supplies

a. Mailing and couriers

b. Reproduction costs

c. Storage

d. Phones

e. Computers

f. Copiers

9. Personal vehicles i.e. Superintendent Pickup trucks

C. General Requirements: These are costs directly associated with the project and are necessary to perform the actual work of the modification. These costs shall be shown as direct costs in the estimate. The following items, if applicable, are considered allowable costs for calculating General Requirements:

1. Hoisting

2. Material handling

3. Temporary fencing

4. Port-a-lets

5. Trash removal, dumpsters

6. Barricades

7. Small tools

8. Safety supplies

9. Scaffolding

10. Daily cleaning

11. Traffic control

12. Temporary signage

13. Temporary heating and power

D. Personnel Costs: Costs included in the modification must only be for General Conditions staff and workers actually present and working on the project site. Modification costs for salaried workers are only allowed within the structure of a 40 hour week and no overtime or holiday pay will be allowed.

1. Worker Hourly Rates are costs directly associated with the individual worker and consist of the following:

a. Base Rate: This is the hourly rate paid directly to the worker

b. Labor Burden: Employer payments of all applicable burdens, this includes insurance and taxes that the business must pay on behalf of the worker to government entities and educational forums , such as:

1) Social Security

2) Medicare

3) Workers Compensation– Policy and company calculation to be made available.

4) FUTA– Cap Rate and percentage to be proportionally allocated over one year.

5) SUTA– Cap Rate and percentage to be proportionally allocated over one year.

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6) Union agreement costs – Other costs required under an enforceable collective bargaining agreement.

c. Fringe Benefits: Various non-wage compensations provided to employees such as:

1) Health Care Insurance Premiums

2) Cell Phone

3) Clothing

4) 401K and Pensions

5) Vehicle allowances

6) Gas allowance

7) Life insurance premiums

8) Disability insurance

9) Other Fringe Benefits required under an enforceable collective bargaining agreement

E. Bonuses or Deferred Compensation: No Bonus or Deferred Compensation will be allowed within any components of pricing including Home Office Overhead, General Conditions, General Requirements, Hourly Worker Rates, or the direct costs of work.

F. General Liability Insurance: An insurance policy that protects the contractor from claims resulting from bodily injury or property damage to a third party. Include this as a separate line item within all modification proposals and provide a current insurance quote upon request.

G. Performance and Payment Bonds: A performance bond is a surety bond issued by an insurance company or bank to guarantee satisfactory completion of a project. The Payment Bond guarantees that the contractor will pay the labor and material costs they have incurred. Banks and Insurance companies charge a premium for each individual project based on a sliding scale which relates to the size of the project. Include this as a separate line item in modification proposals and provide current company bonding rates upon request.

H. Builder’s Risk Insurance: This covers the contractor’s loss due to fire, high winds, or other natural forces. This is not reimbursed by the National Park Service (NPS) and shall not be included in modification proposals.

1.3 MODIFICATION PROPOSAL PRICING REQUIREMENTS

A. General:

1. Your proposal must be received in the format and within the time frame specified in the Request for Proposal letter. Costs or delays resulting from failure of contractor to submit within the time frame specified will not be compensable.

2. The proposal must be detailed with itemized lists of equipment, materials, labor, production rates, overhead, profit, and bond markup for each item. Labor costs must be itemized by craft and hourly rate, including Fringe Benefits and Labor Burden. If the costs of Fringe Benefits and Labor Burden are not itemized, it is assumed that that they are included in the hourly rate shown, or contractor is not requesting reimbursement.

Contractor may utilize the government provided Contractor Estimate Form, or their own form, provided that it contains the same information and level of detail as the Gov’t provided form.

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3. Requests for extensions of contract time as a result of this change must be justified with a Time Impact Analysis (TIA). Refer to Division 01 Specification, “Construction Schedule”, for time impact analysis requirements. TIA and associated costs must be received with the proposal by the date shown within the Request for Proposal letter.

Contractor’s failure to submit within the specified time frame will be construed as the Contractor waiving the right for additional time and no time extension will be allowed.

4. All supporting documentation used to justify the proposed modification will be made available to the Contracting Officer upon request.

5. Contractor must review and approve all subcontractor/supplier pricing in detail for proper format, scope, production rates, and pricing prior to submission to the NPS. All delay costs associated with not reviewing and approving subcontractor/supplier pricing will be borne by the Contractor.

6. All pricing and production rates within the estimate must be based on fair and reasonable pricing and cannot include built-in contingency.

B. Labor:

1. Contractor shall estimate the cost of labor by itemizing each craft involved, indicating worker hourly rate (base rate + labor burden + fringe benefits) for each and itemizing the hours required for each craft that will be directly engaged in modification work.

Any work proposed that will require overtime work or premium pay shall be itemized separately. All rates shall be in accordance with the Davis-Bacon Act as incorporated herein. Labor Burden may include payroll taxes, Social Security, unemployment insurances, workers compensation insurance, FICA, FUTA, and other direct costs resulting from Federal, State or local laws.

2. Itemize labor costs for equipment operators separate from equipment costs.

3. The labor cost for foremen shall only be costs for related work required for the modification.

C. Materials:

1. The estimated cost for materials shall include quotes from multiple sources. Material prices must include all applicable fees and credits, including but not limited to, sales tax, freight and delivery charges, and tax rebates.

2. No markup shall be applied to any material provided by the NPS.

D. Equipment:

1. Equipment used for the project must be appropriately sized for the work being performed.

2. Do not include costs for “miscellaneous tools and equipment”, in your proposal for a replacement value of $500 or less. Costs shown in excess of $500 must be broken out separately.

3. Regardless of ownership, the rates to be used in determining equipment rental costs shall be the lowest cost from one of the following sources:

a. U.S. Army Corps of Engineers , Ownership and Operating Expense Schedule (use latest edition and applicable region)

b. Construction Blue Book

c. Local equipment rental rates, documented by actual invoice charges, or itemized vendor quotes.

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4. The estimated equipment rates shall include the operating costs of all fuel, oil, lubrication, supplies, small tools, necessary attachments, ground engaging components, tires & tracks, routine repairs and maintenance (cost of major repair and overhaul is not allowed per FAR 31.105(d)(2)), depreciation, storage, insurance, and all incidentals.

Mobilization, if applicable, may be included for equipment solely used on the modification work but must be listed separately.

5. Estimate the full rate for equipment only for the duration that the equipment will be utilized to accomplish the work of the modification.

6. Standby unit rates used are to be in accordance with paragraph 1.3, D, 2, above. If the US Army Corp of Engineers is utilized then their standby rates prevail. If Bluebook or local equipment pricing is accepted, then ½ of the equipment costs minus any operating costs, major repair and overhaul will be accepted.

7. If equipment is in standby mode due solely to a documented NPS delay, the established standby rate shall apply from the first day of the delay.

8. Equipment that is not used and on the jobsite for up to five consecutive days may be classified at standby rates, provided that the equipment is or has been used solely to perform work on the modification and will be necessary to complete additional modification work. Equipment that is still on the jobsite but not in use after five consecutive days will not be considered in the modification pricing.

9. Requests for compensation for equipment stand by time must be justified, documented and itemized separately.

10. The estimated timeframe (daily, weekly, monthly) for use of the equipment must reflect the lowest cost to the Government.

E. Establishment and Application of Overhead and Profit Percentages:

1. Home Office Overhead and Profit (OH&P) shall be applied to direct costs only. Profit shall not be applied to overhead amounts; and overhead shall not be applied to profit.

Home office overhead shall contain only allowable, allocable, and reasonable costs per the contract documents and FAR Part 31. Profit percentages are based on risk factors found in FAR Part 31which have been applied to the specific type of work included in this project. Negotiated rates shall not exceed the following percentages for OH&P for contractor self-performed work:

Overhead………………10% Profit………………..…9.50%

2. Total aggregate limit of markup (OH&P) for contractor and subcontractors on modification work shall not exceed 25%. The NPS will not be responsible for allocation of percentages between contractor and subcontractors at any tier.

3. If contractors form a partnership, than the partnership may only receive home office overhead and profit in the same amount as an individual contractor (refer to par 1.3,E,1 above). It is the responsibility of the partners to decide on the division of revenue.

4. Combined Increases and Decreases: On proposals involving both increases and decreases in the Contract Price, the overhead and profit mark-ups are required on the net increases and deducted on net decreases.

5. At no time can profit be calculated on Overhead or itself, it must be calculated on direct costs of work only.

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PART 2 - PRODUCTS (Not Used)

END OF SECTION 012601

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082714 DEFINITION OF CONTRACT LINE ITEMS

SECTION 01 27 00 – DEFINITION OF CONTRACT LINE ITEMS

PART 1 - GENERAL

1.1 SUMMARY

A. The intent of this section is to explain, in general, what is and what is not included in a contract line item, and the limits or cut-off points where one item ends and another begins.

B. If no contract line item exists for a portion of the work, include the costs in a related item.

C. Options Description: The Base Project includes all work shown complete and ready for use, except for two (2) additive pricing options as shown on the contract plans and described below as follows:

1. Option No. 1: Work related to Lincoln Memorial Service Line.

2. Option No. 2: Work related to Line “L”.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION

3.1 LIST OF CONTRACT LINE ITEMS, BASE BID

A. Contract Line Item No. 0001, General Requirements

1. This item is as specified in Division 01, including but not limited to permitting and associated fees, temporary facilities and equipment, pressure testing, disinfection, flushing and disposal. Excluded are mobilization/demobilization and erosion control.

2. Measurement for payment will be based on percent completion agreed upon.

3. Payment will be made at the contract lump sum price.

B. Contract Line Item No. 0002, Mobilization/Demobilization

1. This item consists of mobilization, demobilization, and cleanup.

2. Measurement for payment will be based on percent completion agreed upon.

3. Payment will be made at the contract lump sum price.

C. Contract Line Item No. 0003, Erosion Control

1. This item consists of furnishing, installing, maintaining, and removing erosion control measures in accordance with permit requirements, including but not limited to temporary tree protection, silt fencing, seeding, mulching, inlet protection, and cleanup.

2. Measurement for payment will be based on percent completion agreed upon.

3. Payment will be made at the contract lump sum price.

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D. Contract Line Item No. 0004, Maintenance of Traffic

1. This item will provide temporary maintenance of traffic for all work areas in accordance with permit requirements, including but not limited to flagmen, lane controls, temporary steel plates, jersey barriers, and temporary signage.

2. Measurement for payment will be based on percent completion agreed upon.

3. Payment will be made at the contract lump sum price.

E. Contract Line Item No. 0005, Surface Restoration

1. This item will restore all surface areas to original condition, including but not limited to concrete sidewalk demolition and replacement, asphalt pavement demolition and replacement, top soil and seeding.

2. Measurement for payment will be based on percent completion agreed upon.

3. Payment will be made at the contract lump sum price.

F. Contract Line Item No. 0006, Water Service Line, 1" Diameter

1. This item consists of furnishing and installing 1" high density polyethylene (HDPE) tubing at various depths by horizontal directional drilling (HDD), including incidental open cut, with HDPE adapters, fittings, and required appurtenances for a complete and properly installed system. This item includes excavation, excavation support, backfill, and compaction of entrance and exit pits.

2. Measurement for payment will be based on linear feet.

3. Payment will be made at the contract price per linear foot.

G. Contract Line Item No. 0007, Water Service Line, 2" Diameter

1. This item consists of furnishing and installing 2" HDPE tubing at various depths by HDD, including incidental open cut, with HDPE adapters, fittings, and required appurtenances for a complete and properly installed system. This item includes excavation, excavation support, backfill, and compaction of entrance and exit pits.

2. Measurement for payment will be based on linear feet.

3. Payment will be made at the contract price per linear foot.

H. Contract Line Item No. 0008, Pipe, High Density Polyethylene (HDPE), 8" Diameter, HDD

1. This item consists of furnishing and installing 8" HDPE pipe at various depths by HDD with HDPE adapters, fittings, and required appurtenances for a complete and properly installed system. This item includes excavation, excavation support, and compaction of entrance and exit pits.

2. Measurement for payment will be based on linear feet.

3. Payment will be made at the contract price per linear foot.

I. Contract Line Item No. 0009, Pipe, High Density Polyethylene (HDPE), 12" Diameter, HDD

1. This item consists of furnishing and installing 12" HDPE pipe at various depths by HDD with HDPE adapters, fittings, and required appurtenances for a complete and properly

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installed system. This item includes excavation, excavation support, backfill, and compaction of entrance and exit pits.

2. Measurement for payment will be based on linear feet.

3. Payment will be made at the contract price per linear foot.

J. Contract Line Item No. 0010, Pipe, High Density Polyethylene (HDPE), 6" Diameter, Open Cut

1. This item consists of furnishing and installing 6" HDPE pipe at various depths by open cut, with fittings, couplers, thrust blocks/pads, marking tape, and required appurtenances for a complete and properly installed system. This item includes trenching, bedding, backfill, and compaction.

2. Measurement for payment will be based on linear feet.

3. Payment will be made at the contract price per linear foot.

K. Contract Line Item No. 0011, Pipe, High Density Polyethylene (HDPE), 8" Diameter, Open Cut

1. This item consists of furnishing and installing 8" HDPE pipe at various depths by open cut, with fittings, couplers, thrust blocks/pads, marking tape, and required appurtenances for a complete and properly installed system. This item includes trenching, bedding, backfill, and compaction.

2. Measurement for payment will be based on linear feet.

3. Payment will be made at the contract price per linear foot.

L. Contract Line Item No. 0012, Pipe, High Density Polyethylene (HDPE), 12" Diameter, Open Cut

1. This item consists of furnishing and installing 12" HDPE pipe at various depths by open cut, with fittings, couplers, thrust blocks/pads, marking tape, and required appurtenances for a complete and properly installed system. This item includes trenching, bedding, backfill, and compaction.

2. Measurement for payment will be based on linear feet.

3. Payment will be made at the contract price per linear foot.

M. Contract Line Item No. 0013, Gate Valve with Box, 8"

1. This item consists of furnishing and installing buried 8" gate valve with box at grade level, transitions to HDPE, and required appurtenances for a complete and properly installed system.

2. Measurement for payment will be for each.

3. Payment will be made at the contract price per each.

N. Contract Line Item No. 0014, Gate Valve with Box, 12"

1. This item consists of furnishing and installing buried 12" gate valve with box at grade level, transitions to HDPE, and required appurtenances for a complete and properly installed system.

2. Measurement for payment will be for each.

3. Payment will be made at the contract price per each.

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O. Contract Line Item No. 0015, Air Release Valve Assembly

1. This item consists of furnishing and installing air release valve assembly, concrete vault, connection to main pipe, fittings, and required appurtenances for a complete and properly installed system. This item includes trenching, bedding, backfill, and compaction.

2. Measurement for payment will be for each.

3. Payment will be made at the contract price per each.

P. Contract Line Item No. 0016, Fire Hydrant Assembly

1. This item consists of furnishing and installing fire hydrant assembly with 6'' diameter pressure class 350 ductile iron lateral piping, thrust blocks/pads, shutoff valve, fittings, and required appurtenances for a complete and properly installed system. This item includes trenching, bedding, backfill, and compaction.

2. Measurement for payment will be for each.

3. Payment will be made at the contract price per each.

Q. Contract Line Item No. 0017, Backflow Preventer

1. This item consists of furnishing and installing backflow preventer assembly, concrete vault, isolation valves, fittings, couplers, and required appurtenances for a complete and properly installed system. This item includes trenching, bedding, backfill, and compaction.

2. Measurement for payment will be based on percent completion agreed upon.

3. Payment will be made at the contract lump sum price.

R. Contract Line Item No. 0018, DC Water Meter Fee

1. This item consists of obtaining and paying fee for DC Water Meter permit and inspections as required. The amount shown in the Contract Price Schedule is assumed and shall be used as the basis for this Contract Line Item. Once DC Water issues the invoice for the actual permit and inspection fees, the assumed amount shall be reconciled against the actual invoice amount.

2. Measurement for payment will be based on percent completion agreed upon.

3. Payment will be made at the contract lump sum price.

S. Contract Line Item No. 0019, Refurbish Master Water Meter Vaults

1. This item consists of work necessary to completely refurbish two (2) existing, old, 6-inch, master water meter vaults on Jefferson Street, along 14th Street, S.W. The work includes the following items:

a. Perform a field survey of the interior of each of two master meter vaults and submit detail plans of the existing and proposed piping, valves, and appurtenances.

b. Obtain construction permits for each meter. Payment of all related permit fees shall be included in CLIN 0018, DC Water Meter Fee.

c. Shut down each master meter as approved and in coordination with DC Water and

NPS. Coordinate with DC Water for removal of the existing water meter.

d. Remove and replace completely all existing mechanical piping, valves, fittings and other appurtenances as necessary. Exclude embedded wall pipe.

e. Include hauling and disposal of all demolition materials.

f. Perform all testing and disinfection as required.

g. Perform concrete patching as necessary to repair any holes and/or spalled concrete.

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h. Obtain DC Water inspection and approval as necessary for the new 6-inch water meter. The water meters shall be furnished by DC Water and installed by the contractor.

i. Place new master meters (2) into service in coordination with DC Water and NPS.

2. Measurement for payment will be based on percent completion agreed upon.

3. Payment will be made at the contract lump sum price.

T. Contract Line Item No. 0020, Miscellaneous Work

1. This item consists of any work required but not included in the contract line items above, including but not limited to the following items:

a. Miscellaneous demolition of water lines and fire hydrants.

b. Water fountains.

c. Service connections on water mains, including tapping sleeves.

d. Miscellaneous cut and capping of existing water lines.

e. Service connections to existing valves, fountains, and small meters at existing facilities.

2. Measurement for payment will be based on percent completion agreed upon.

3. Payment will be made at the contract lump sum price.

3.2 LIST OF CONTRACT LINE ITEMS, OPTION NO. 1—LINCOLN MEMORIAL SERVICE

LINE

A. Contract Line Item No. 0001, General Requirements

1. This item is as specified in Division 01, including but not limited to permitting and associated fees, temporary facilities and equipment, pressure testing, disinfection, flushing, and disposal. Excluded are mobilization/demobilization and erosion control.

2. Measurement for payment will be based on percent completion agreed upon.

3. Payment will be made at the contract lump sum price.

B. Contract Line Item No. 0002, Erosion Control

1. This item consists of furnishing, installing, maintaining, and removing erosion control measures in accordance with permit requirements, including but not limited to temporary tree protection, silt fencing, seeding, mulching, inlet protection, and cleanup.

2. Measurement for payment will be based on percent completion agreed upon.

3. Payment will be made at the contract lump sum price.

C. Contract Line Item No. 0003, Surface Restoration

1. This item will restore all surface areas to original condition, including but not limited to concrete sidewalk demolition and replacement, asphalt pavement demolition and replacement, top soil and seeding.

2. Measurement for payment will be based on percent completion agreed upon.

3. Payment will be made at the contract lump sum price.

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D. Contract Line Item No. 0004, Pipe, High Density Polyethylene (HDPE), 8" Diameter, HDD

1. This item consists of furnishing and installing 8" HDPE pipe at various depths by HDD with HDPE adapters, fittings, and required appurtenances for a complete and properly installed system. This item includes excavation, excavation support, and compaction of entrance and exit pits.

2. Measurement for payment will be based on linear feet.

3. Payment will be made at the contract price per linear foot.

3.3 LIST OF CONTRACT LINE ITEMS, OPTION NO. 2—LINE "L"

A. Contract Line Item No. 0001, General Requirements

1. This item is as specified in Division 01, including but not limited to permitting and associated fees, temporary facilities and equipment, pressure testing, disinfection, flushing, and disposal. Excluded are mobilization/demobilization and erosion control.

2. Measurement for payment will be based on percent completion agreed upon.

3. Payment will be made at the contract lump sum price.

B. Contract Line Item No. 0002, Erosion Control

1. This item consists of furnishing, installing, maintaining, and removing erosion control measures in accordance with permit requirements, including but not limited to temporary tree protection, silt fencing, seeding, mulching, inlet protection, and cleanup.

2. Measurement for payment will be based on percent completion agreed upon.

3. Payment will be made at the contract lump sum price.

C. Contract Line Item No. 0003, Surface Restoration

1. This item will restore all surface areas to original condition, including but not limited to concrete sidewalk demolition and replacement, asphalt pavement demolition and replacement, top soil and seeding.

2. Measurement for payment will be based on percent completion agreed upon.

3. Payment will be made at the contract lump sum price.

D. Contract Line Item No. 0004, Pipe, High Density Polyethylene (HDPE), 8" Diameter, HDD

1. This item consists of furnishing and installing 8" HDPE pipe at various depths by HDD with HDPE adapters, fittings, and required appurtenances for a complete and properly installed system. This item includes excavation, excavation support, and compaction of entrance and exit pits.

2. Measurement for payment will be based on linear feet.

3. Payment will be made at the contract price per linear foot.

E. Contract Line Item No. 0005, Fire Hydrant Assembly

1. This item consists of furnishing and installing fire hydrant assembly with 6'' diameter pressure class 350 ductile iron lateral piping, thrust blocks/pads, shutoff valve, fittings, and

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required appurtenances for a complete and properly installed system. This item includes trenching, bedding, backfill, and compaction.

2. Measurement for payment will be for each.

3. Payment will be made at the contract price per each.

END OF SECTION 01 27 00

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091015 PROJECT MANAGEMENT AND COORDINATION

SECTION 01 31 00 - PROJECT MANAGEMENT AND COORDINATION

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes administrative provisions for coordinating construction operations on Project including, but not limited to, the following:

1. Definitions.

2. Construction Coordination.

3. Submittals.

4. Coordination Drawings.

5. Requests for Information (RFIs).

6. NPS/DSC SharePoint Project Website.

7. Project meetings.

8. Environmental Coordination.

9. Permits.

B. Related Requirements:

1. Section 01 11 00 “Summary of Work” for work under other contracts and concurrent work at Project site.

2. Section 01 32 16 “Construction Schedule” for preparing and submitting Contractor’s construction schedule.

3. Section 01 73 40 “Execution” for procedures for coordinating general installation and field-engineering services, including establishment of benchmarks and control points.

4. Section 01 77 00 “Closeout Procedures” for coordinating closeout of the Contract.

1.2 CONSTRUCTION COORDINATION

A. Coordination: Coordinate construction operations included in different Sections of the Specifications to ensure efficient and orderly installation of each part of the Work. Coordinate construction operations, included in different Sections, which depend on each other for proper installation, connection, and operation.

1. Schedule construction operations in sequence required to obtain the best results where installation of one part of the Work depends on installation of other components, before or after its own installation.

2. Coordinate…