Attachment 3 - Statement of Work - Specifications.pdf

Statement of Work

GENERAL SPECIFICATIONS

Grey Towers Historic Terraces and Walkway Preservation

5/21/2025

1.1 SCOPE OF CONTRACT

A. This project includes the restoration of existing stone pavers and walkway steps and the rehabilitation and repair of existing concrete water features and benches, all located on the grounds of the Grey Towers National Historic Site.

B. The work includes:

1. Restoration of stone pavers at two (2) locations, including subgrade preparation and reconstruction. Those locations are known as the Marble Court and Star & Diamond Terrace

2. Restoration of walkway stone steps at two (2) locations, including subgrade preparation.

3. Rehabilitation of concrete water feature (“Finger Bowl”) and half-moon shaped pool at Marble Court, including cleaning, repointing, applying thin coat of mortar over surface (“Skim Coat”) and repainting. The required work at the half-moon shaped pool is considered incidental to the work associated at the Marble Court in the Schedule of Items.

4. Repair two (2) stone benches adjacent to the Moat.

C. Quantities associated with these work items are identified in the Schedule of Items. Base construction and option work items are identified in the Schedule of Items.

1.2 PROJECT LOCATION

A. The project is located at the Grey Towers National Historic Site; Pike County;

Pennsylvania; Latitude: 41°19'41.37"N, Longitude: 74°49'8.61"W. It is located approximately 1 mile west of the town of Milford. Pennsylvania. The project may be accessed from US Highway 6, Old Owego Turnpike, and Grey Towers Drive. Site Address: 151 Grey Towers Drive.

1.3 SITE INFORMATION AND LIMITATIONS

A. The following site conditions are considered incidental to the contract and the contractor will not be paid directly for any of the following items:

1. Grey Towers is listed on the National Register of Historic Places. The site served as the home of Gifford Pinchot, first Chief of the Forest Service, and later a two-term Governor of Pennsylvania. It is a regional tourist attraction and conference center, attracting 15,000-20,000 visitors per year.

2. All construction equipment shall be pressure-washed before entering the project site. The removal of mud and debris from treads, tracks and undercarriage, with emphasis on axles, frame, cross-members, motor mounts, and underneath steps, running boards, and front bumper/brushguard assemblies will be required. The purpose is to reduce or eliminate the transportation of noxious weeds, which is required by Federal and State regulations.

3. Water is available at the site for construction purposes.

4. Toilet facilities are not available at the site. The Contractor shall provide portable toilet facilities and secure them on the site premises. The Contracting Officer shall approve staging locations for each portable toilet facility onsite.

5. Electrical power is available onsite for the contractor to use. The Contractor shall indicate intended power use needs for this project and utilize power in a manner that does not harm the grounds of the Grey Towers National Historic Site.

6. Green construction fencing with signage will be installed in locations approved by the Contracting Officer. Tree and soil compaction protection will be needed as the work takes place in the historic landscape. The Contractor will present via a submittal their plan for controlling compaction and damage to the cultural resources.

1.4 WORK CAMPS, STAGING AND STORAGE AREAS

A. Select areas for staging operations and storage of materials are indicated on the drawings.

Additional areas may be proposed by the Contractor but shall not be utilized until approved by the Contracting Officer. No work trailers will be allowed on site.

B. No overnight camping will be allowed on site.

1.5 INSPECTION OF WORKSITE

A. The contractor acknowledges they have taken the necessary steps, to a satisfactory level, and to ascertain the nature and location of work and have investigated the typical and local conditions that can affect the work or its cost. Any failure of the contractor to take the actions described and acknowledged in this paragraph will not relieve the Contractor from the responsibility of estimating properly the difficulty and cost of successfully performing the work, or for proceeding to successfully perform the work without additional expenses to the government.

1.6 START DATE

A. Summer 2026

1.7 HOURS OF OPERATION / WORK HOUR LIMITS AND CONSTRUCTION

PHASING

A. Construction Activity

1. Work Hours and limits: Monday through Friday, 7 am to 5:30 pm.

2. No work will be allowed on weekends or federal holidays without written approval to the Contracting Officer. A minimum seven (7) calendar day advance notice requesting work during the weekends is required for this project.

3. No pets are allowed on the project site at any time.

B. Project Scheduling

1. To reduce the interruption of visitors onsite, the walkway steps adjacent to the “Finger Bowl” shall be completed prior to work starting at the Marble Court.

1.8 CONTRACT TIME

A. Base Contract: 140 Calendar Days.

B. If Option Items are exercised, add the following contract time:

1. Option Work Item #1: 21 Calendar Days.

2. Option Work Item #2: 14 Calendar Days.

3. Option Work Item #3: 7 Calendar Days.

1.9 SPECIFICATIONS

A. The following specifications are attached. Some sections in the schedule of items refer to other sections not listed and are subsidiary to or are included in payment for other pay items in this contract. These items are considered incidental, and no additional compensation will be made.

Section 011250 Measurement and Payment Section 011400 Work Restrictions Section 011190 Mobilization Section 013300 Submittals Section 013591 Historic Treatment Procedures Section 014100 Quality Control Section 023701 Sediment and Erosion Control Section 023800 Earthwork Geotextiles Section 024100 Waste Material Disposal Section 024110 Dismantling / Disassembly Section 040140 Repointing Section 040310 Historic Masonry Cleaning Section 040322 Historic Stonework Section 040513 Masonry Mortaring Section 099723 Concrete Coatings Section 312000 Earthwork Section 321204 Crushed Aggregate Base and Surface Course Section 321480 Architectural Bluestone and Granite

END OF SECTION C

March 2026

MEASUREMENT AND PAYMENT 011250-1

GREY TOWERS NATIONAL HISTORIC SITE

GREY TOWERS HISTORIC TERRACES AND WALKWAY PRESERVATION

SECTION 011250 - MEASUREMENT AND PAYMENT

PART 1 - GENERAL

1.1 SUMMARY

A. Measurement and payment for contract work will be made only for and under those pay items included in the Schedule of Items. All other work, labor, materials, equipment, and incidentals necessary to successfully complete the project will be considered as included in the payment for items shown. This section defines the method of measurements and basis of payment for work items listed in the Schedule of Items.

B. When more than one class, size, type, thickness, etc. is specified in the Schedule of Items for any pay item, suffixes will be added to the item number to differentiate between the pay items.

1.2 DETERMINATION OF QUANTITIES

A. The following measurements and calculations shall be used to determine contract quantities for payment.

1. For individual construction items, longitudinal and lateral measurements for area computations shall be made horizontally or corrected to horizontal measurement unless otherwise specified. Measurements for geotextiles, netting and erosion control blankets shall be along slope lines.

2. For excavation or embankment volumes, the average end area method shall be used to compute volumes. However, if in the judgment of the Contracting Officer (CO), the average end area method is impractical, measurement shall be made by volume in hauling vehicles or by other three-dimensional methods.

3. For Structures, they shall be measured according to neat lines shown on the drawings or as altered by the CO, in writing, to fit field conditions.

4. For items that are measured by the linear foot, such as pipe culverts, fencing, guardrail, piping, utilities, and underdrains, measurements shall be made parallel to the base or foundation upon which the structures are placed.

5. For aggregates weighed for payment, the tonnage shall not be adjusted for moisture content, unless otherwise provided for.

6. For standard manufactured items (such as fence, wire, plates, rolled shapes, pipe conduits) identified by gauge, weight, section dimensions, and so forth, such identifications shall be considered the nominal weights or dimensions. Unless controlled by tolerances in cited specifications, manufacturer's tolerances shall be accepted.

B. Earthwork Tolerances - Adjustments of horizontal or vertical alignment, within the tolerances specified in this contract, or shifts of balance points up to 100 feet shall be made by the contractor as necessary to produce the designed sections and to balance earthwork. Such adjustments shall not be considered as "Changes."

MEASUREMENT AND PAYMENT 011250-2

1.3 UNITS OF MEASUREMENT

A. Payment shall be by units defined and determined according to U.S. Standard measure and by the following:

1. Cubic Yard (CY): A measurement computed by one of the following methods:

a. Excavation, Embankment, or Borrow. The measurement computed by the average end area method from measurements made longitudinally along a centerline or reference line.

b. Material in Place or Stockpile. The measurement computed using the dimensions of the in-place material.

c. Material in the Delivery Vehicle. The measurement computed using measurements of material in the hauling vehicles at the point of delivery.

Vehicles shall be loaded to at least their water level capacity. Leveling of the loads may be required when vehicles arrive at the delivery point.

2. Each (EA): One complete unit, which may consist of one or more parts.

3. Linear Foot (LF): Measurement of work along its length from point-to-point;

parallel to the base or foundation. Do not measure overlaps.

4. Lump Sum (LS): One complete unit.

5. Pound (LB): For sacked or packaged material, measurement will be the net weight as packed by the manufacturer.

6. Square Foot (SF): Measured on a plane parallel to the surface being measured.

7. Square Yard (SY): Measured on a plane parallel to the surface being measured.

1.4 METHOD OF MEASUREMENT

A. One of the following methods of measurement for determining final payment is designated on the Schedule of Items for each pay item:

1. ACTUAL QUANTITIES (AQ) - These quantities are determined from actual measurements of completed work.

2. LUMP SUM QUANTITIES (LSQ) - These quantities denote one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor to complete the job. They shall not be measured.

PART 2 - PRODUCTS (NOT APPLICABLE)

PART 3 - EXECUTION (NOT APPLICABLE)

END OF SECTION 011250

WORK RESTRICTIONS 011400-1

GREY TOWERS HISTORIC TERRACES AND WALKWAY PRESERVATION

SECTION 011400 - WORK RESTRICTIONS

PART 1 - GENERAL

1.1 USE OF PREMISES

A. Use of Site: Limit use of premises to work in areas indicated. Do not disturb portions of site beyond areas delineated by construction fencing provided to and installed by the Contractor.

1. Limits: Confine constructions operations to within 5 feet around the designated areas of construction shown on the drawings unless otherwise indicated. Existing structures, plants, walkways, trees and other garden rooms shall not be disturbed unless otherwise indicated on the drawings. Locations for stockpiling materials and staging equipment shall be confined to where shown the drawings. Mechanized equipment shall be confined to existing roadways, pathways, and access corridors where shown on the drawings.

2. Temporary access routes for equipment: May be allowed upon approval of the route by the Contracting Officer. Coordinate with Contracting Officer for best delivery location and route to the work site prior to arranging for delivery onsite.

3. Government Occupancy: Allow for Government occupancy of site and use by the public. The site is to remain active for visitor usage during construction work, which includes (but not limited to) conferences and daily tour groups.

4. Driveways and Entrances: Always keep driveways and entrances serving premises clear and available to the public, occupants, government employees, and emergency vehicles. Do not use these areas for parking or storage of materials, unless otherwise delineated on the drawings.

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

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

1.2 OCCUPANCY REQUIREMENTS

A. Full Government Occupancy: Government will occupy site (including historic gardens and features) and existing building during entire construction period. Cooperate with Government during construction operations to minimize conflicts and facilitate Government usage. Perform the Work so as not to interfere with Government operations.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION (Not Used)

WORK RESTRICTIONS 011400-2

END OF SECTION 011400

MOBILIZATION 011900-1

GREY TOWERS HISTORIC TERRACES AND WALKWAY PRESERVATION

SECTION 011900 - MOBILIZATION

PART 1 - GENERAL

1.1 SUMMARY

A. This item is intended to compensate the Contractor for operations including, but not limited to, those necessary for the movement of personnel, equipment, supplies, and incidentals to the project site; for payment of premiums for bonds and insurance for the project; and for any other work and operations which must be performed or costs that must be incurred incident to the initiation of meaningful work at the site and for which payment is not otherwise provided for under the contract.

1.2 MEASUREMENT AND PAYMENT

A. When not shown as a pay item in the Schedule of Items, the cost of mobilization shall be incidental to the Work items listed in the Schedule of Items. At time of progress payment, the Contractor shall provide evidence the costs associated with Mobilization (including itemized breakdown of those costs on invoice) are valid.

B. Provide receipts for the following:

1. Bond premiums will be reimbursed after receipt of the evidence of payment.

PART 2 - PRODUCTS (NOT USED)

PART 3 - EXECUTION (NOT USED)

END OF SECTION 011900

December 2024

SUBMITTAL PROCEDURES 013300-1

GREY TOWERS HISTORIC TERRACES AND WALKWAY PRESERVATION

SECTION 013300 - SUBMITTAL PROCEDURES

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes administrative and procedural requirements for submitting Shop Drawings, Product Data, Mock-ups, Samples, and other miscellaneous submittals. See Table 013300-1 for a summary of required submittals.

B. See other specification section within this package for additional requirements on submittal.

1.2 SUBMITTAL PROCEDURES

A. Coordination: Coordinate preparation and processing of submittals with performance of construction activities.

1. Coordinate transmittal of different types of submittals for related parts of the Work so processing will not be delayed because of need to review submittals concurrently for coordination.

a. The Contracting Officer (CO) reserves the right to withhold action on a submittal requiring coordination with other submittals until related submittals are received.

B. Processing Time: Allow enough time for submittal review, including time for re-submittals, as follows. Time for review shall commence on CO's receipt of submittal.

1. Initial Review: Allow 14 days for initial review of each submittal. Allow additional time if processing must be delayed to permit coordination with subsequent submittals. CO will advise Contractor when a submittal being processed must be delayed for coordination.

2. If an intermediate submittal is necessary, process it in same manner as initial submittal.

3. Allow 14 days for processing each re-submittal.

4. No extension of the Contract Time will be authorized because of failure to transmit submittals enough in advance of the Work to permit processing.

C. Identification: Place a permanent label or title block on each submittal for identification.

1. Indicate name of firm or entity that prepared each submittal on label or title block.

2. Provide a space on label or beside title block to record Contractor's review and approval markings and action taken by CO.

3. Include the following information on label for processing and recording action taken:

a. Project name.

SUBMITTAL PROCEDURES 013300-2

b. Date.

c. Name and address of Contractor.

d. Name of manufacturer.

e. Unique identifier, including revision number.

f. Number and title of appropriate Specification Section.

g. Drawing number and detail references, as appropriate.

h. If more than one item is shown on submittal sheet, identify item.

D. Deviations: Highlight, encircle, or otherwise identify deviations from the Contract Documents on submittals.

E. Additional Copies: Unless additional copies are required for final submittal, and unless CO observes noncompliance with provisions of the Contract Documents, initial submittal may serve as final submittal.

F. Use for Construction: Use only final submittals with mark indicating action taken by CO in connection with construction.

1.3 MEASUREMENT AND PAYMENT

A. No separate measurement and/or payment will be made for this section. Payment shall be included with work shown in the schedule of items.

PART 2 - PRODUCTS

2.1 ACTION SUBMITTALS – (Submittals requiring CO approval)

A. General: Prepare and submit Action Submittals required by individual Specification Sections.

1. Number of Copies: Submit three copies of each submittal, unless otherwise indicated. CO will return two copies. Mark up and retain one returned copy as a Project Record Document.

B. Product Data: Collect information into a single submittal for each element of construction and type of product or equipment.

1. If information must be specially prepared for submittal because standard printed data are not suitable for use, submit as Mock-ups and / or Shop Drawings, not as Product Data.

2. Mark each copy of each submittal to show which products and options are applicable.

3. Include the following information, as applicable:

a. Manufacturer's written recommendations.

b. Manufacturer's product specifications.

c. Manufacturer's installation instructions.

d. Manufacturer's catalog cuts.

e. Wiring diagrams showing factory-installed wiring.

f. Compliance with recognized trade association standards.

SUBMITTAL PROCEDURES 013300-3

g. Compliance with recognized testing agency standards.

C. Shop Drawings: Prepare Project-specific information, drawn accurately to scale. Do not base Shop Drawings on reproductions of the Contract Documents or standard printed data.

1. Preparation: Include the following information, as applicable:

a. Dimensions.

b. Identification of products.

c. Fabrication and installation drawings.

d. Roughing-in and setting diagrams.

e. Wiring diagrams showing field-installed wiring, including power, signal, and control wiring.

f. Notation of dimensions established by field measurement.

D. Contractor's Construction Schedule: The contractor shall submit a Construction Schedule, for approval by CO, in accordance with the contract provisions within 5 day of commencement of work. Construction schedule shall reflect the work hours and limitations outlined in Section C – Statement of Work.

E. Samples: Prepare physical units of materials or products, including the following:

1. Samples for Initial Selection: Submit manufacturer's color charts consisting of units or sections of units showing the full range of colors, textures, and patterns available.

2.2 INFORMATIONAL SUBMITTALS – (Submittals NOT requiring CO approval)

A. General: Prepare and submit Informational Submittals required by other Specification Sections.

1. Number of Copies: Submit three copies of each submittal, unless otherwise indicated. CO will not return copies.

2. Certificates and Certifications: Certificates and certifications shall be signed by an officer or other individual authorized to sign documents on behalf of that entity.

3. Test and Inspection Reports: Comply with requirements in Section 014100 "Quality Control."

B. Material Test Reports: Prepare reports written by a qualified testing agency, on testing agency's standard form, indicating and interpreting test results of material for compliance with requirements.

C. Field Test Reports: Prepare reports written by a qualified testing agency, on testing agency's standard form, indicating and interpreting results of field tests performed either during installation of product or after product is installed in its final location, for compliance with requirements.

D. Maintenance Data: Prepare written and graphic instructions and procedures for operation and normal maintenance of products and equipment.

SUBMITTAL PROCEDURES 013300-4

E. Manufacturer's Instructions: Prepare written or published information that documents manufacturer's recommendations, guidelines, and procedures for installing or operating a product or equipment. Include name of product and name, address, and telephone number of manufacturer.

PART 3 - EXECUTION

3.1 GENERAL

A. Review each submittal and check for compliance with the Contract Documents. Note corrections and field dimensions. Mark with approval stamp before submitting to CO.

B. Approval Stamp: Stamp each submittal with a uniform, approval stamp. Include Project name and location, submittal number, Specification Section title and number, name of reviewer, date of Contractor's approval, and statement certifying that submittal has been reviewed, checked, and approved for compliance with the Contract Documents.

C. CO will not review submittals that do not bear Contractor's approval stamp and will return them without action.

D. Submittals not required by the Contract Documents will not be reviewed and may be discarded.

E. Substitutions – Whenever materials, products, and equipment are listed by name or brand in the specifications and/or on the drawings, it is used as a measure of quality, utility, or standard. If the Contractor prefers to use any other brand or manufacturer of same quality, appearance and utility to that specified, he shall request substitution as provided below, not less than 30 days before the planned installation of the item. The Contracting Officer will approve or disapprove the request for substitution.

F. Requests for substitutions will only be considered if contractor submits the following:

1. Complete technical data including drawings, complete performance specifications, test data, samples and performance tests of the article proposed for substitution.

Submit additional information if required by Contracting Officer. All items in the above information shall be circled, tagged, or marked in some way to indicate all deviations or differences which the proposed item differs from the originally specified item.

2. Similar data as above for item originally specified. All items shall be marked to identify where/how the proposed substitution will differ.

3. A statement by the Contractor that the proposed substitution is in full compliance with the contract documents, applicable codes, and laws.

4. The Contractor shall be responsible for any effect upon related work in the project for any substitution and shall pay any additional costs generated by any substitutions.

3.2 SUBMITTAL SCHEDULE – Submittals shall be made as required by and called for in the drawings and specifications. The following table is a summary of the required

SUBMITTAL PROCEDURES 013300-5

submittals for the project - the table is to assist the Contractor and may not be all inclusive

– additional submittals may be required by specific specifications:

A.

TABLE 013000-1

Spec.

Section Section Title Subse ction Required Submittal

013591 Historic Treatment Procedure 1.3A Historic Treatment Program 013591 Historic Treatment Procedure 1.3B Alternative Methods and

Materials 013591 Historic Treatment Procedure 1.3C Historic Treatment Specialist

Qualifications 014100 Quality Control 1.3A Contractor Quality Control Plan 014100 Quality Control 1.3B Permits, Licenses and Certificates 014100 Quality Control 1.3C Test and Inspection Reports 014100 Quality Control 1.3D As-Built Drawings & Operations and Maintenance Manual 023701 Sediment and Erosion Control 1.2A Sediment and Erosion Control

Plan 023800 Earthwork Geotextiles 1.3A Product Data 024119 Dismantling / Disassembly 1.3A Dismantling Plan 024119 Dismantling / Disassembly 3.1A Videography of Dismantling and

Installation Techniques 033000 Cast-In-Place Concrete 1.3A Product Data 033000 Cast-In-Place Concrete 1.3B Mix Designs 033000 Cast-In-Place Concrete 1.3C Field Quality Control Reports 040140 Stone Repointing 1.3A Product Data 040140 Stone Repointing 1.3B Samples 040140 Stone Repointing 1.4A Quality Control Program 040310 Historic Masonry Cleaning 1.4A Product Data 040322 Historic Stone Work 1.4A Product Data 040322 Historic Stone Work 1.4B Samples 040322 Historic Stone Work 1.5A Preconstruction Test Reports 040513 Masonry Mortaring 1.2A Product Data 040513 Masonry Mortaring 1.2B Samples 040513 Masonry Mortaring 1.2C Product Certification 099723 Concrete Coatings 1.2A Product Data 312000

Earthwork 1.3A Source Approval of Aggregates and Backfill Materials & Certified Sieve Analysis

321204 Crushed Aggregate Base or Surface Course

1.2A Source, Gradation and Material Properties

321204 Crushed Aggregate Base or Surface Course

1.2B Compaction Density Test Results and Proctor

321204 Crushed Aggregate Base or Surface Course

1.2C Material Properties

SUBMITTAL PROCEDURES 013300-6

Spec.

Section Section Title Subse ction Required Submittal

321480 Architectural Bluestone and Granite 1.3A Product Samples 321480 Architectural Bluestone and Granite 1.3B Shop Drawings

END OF SECTION 013300

HISTORIC TREATMENT PROCEDURES 013591-1

GREY TOWERS HISTORIC TERRACES AND WALKWAY PRESERVATION

SECTION 013591 - HISTORIC TREATMENT PROCEDURES

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes special procedures for historic treatment on Project including, but not limited to, the following:

1. Storage and protection of existing historic materials.

2. Temporary protection of historic materials during construction.

3. Protection during application of chemicals.

4. Protection during use of heat-generating equipment.

5. Historic treatment procedures.

1.2 DEFINITIONS

A. "Preservation": To apply measures necessary to sustain the existing form, integrity, and materials of a historic property. Work may include preliminary measures to protect and stabilize the property.

B. "Restoration": To accurately depict the form, features, and character of a property as it appeared at a particular amount of time by means of the removal of features from other periods in its history and the reconstruction of missing features from the restoration period.

C. "Reconstruction": To reproduce in the exact form and detail a building, structure, or artifact as it appeared at a specific period in time.

D. "Stabilize": To apply measures designed to reestablish a weather-resistant enclosure and the structural reinforcement of an item or portion of the building while maintaining the essential form as it exists at present.

E. "Protect and Maintain": To remove deteriorating corrosion, reapply protective coatings, and install protective measures such as temporary guards; to provide the least degree of intervention.

F. "Repair": To stabilize, consolidate, or conserve; to retain existing materials and features while employing as little new material as possible. Repair includes patching, piecing-in, splicing, consolidating, or otherwise reinforcing or upgrading materials. Within restoration, repair also includes limited replacement in kind, rehabilitation, and reconstruction, with compatible substitute materials for deteriorated or missing parts of features when there are surviving prototypes.

G. "Replace": To duplicate and replace entire features with new material in kind.

Replacement includes the following conditions:

HISTORIC TREATMENT PROCEDURES 013591-2

1. Duplication: Includes replacing elements damaged beyond repair or missing.

Original material is indicated as the pattern for creating new duplicated elements.

2. Replacement with New Materials: Includes replacement with new material when original material is not available as patterns for creating new duplicated elements.

3. Replacement with Substitute Materials: Includes replacement with compatible substitute materials. Substitute materials are not allowed, unless otherwise indicated.

H. "Remove": To detach items from existing construction and legally dispose of them off-site unless indicated to be removed and salvaged or removed and reinstalled.

I. "Remove and Reinstall": To detach items from existing construction, repair and clean them for reuse, and reinstall them where indicated.

J. "Existing to Remain" or "Retain": Existing items of construction that are not to be removed and that are not otherwise indicated to be removed and salvaged, or removed and reinstalled.

K. "Material in Kind": Material that matches existing materials, as much as possible, in species, cut, color, grain, and finish.

1.3 SUBMITTALS

A. Historic Treatment Program: Submit a written plan for each phase or process including protection of surrounding materials during operations. Describe in detail materials, methods, and equipment to be used for each phase of work.

B. Alternative Methods and Materials: If alternative methods and materials to those indicated are proposed for any phase of work, provide a written description including evidence of successful use on other, comparable projects, and program of testing to demonstrate effectiveness for use on this Project.

C. Historic Treatment Specialist Qualifications: A firm that employs personnel, including supervisory personnel, experienced and skilled in the processes and operations indicated.

Must demonstrate successful rehabilitation of similar projects.

1.4 QUALITY ASSURANCE

A. Historic Treatment Preconstruction Conference: Conduct conference at Project site.

B. When providing historic preservation or rehabilitation services, the work shall be accomplished by or under the direct supervision of someone meeting the Secretary of the Interior’s Professional Qualification Standards for Historic Architecture.

1.5 STORAGE AND PROTECTION OF HISTORIC MATERIALS

A. Removed and Reinstalled Historic Materials:

1. Clean and repair historic items to functional condition adequate for intended reuse.

2. Pack or crate items after cleaning and repairing. Identify contents of containers.

HISTORIC TREATMENT PROCEDURES 013591-3

3. Identify and catalog each individual piece of stonework to facilitate re-assembly of intricate stonework onsite.

4. Protect items from damage during transport and storage.

5. Reinstall items in locations indicated. Comply with installation requirements for new materials and equipment. Provide connections, supports, and miscellaneous materials necessary to make item functional for the indicated use.

B. Existing Historic Materials to Remain: Protect construction indicated to remain against damage and soiling during historic treatment. When permitted by the Contracting Officer’s Representative items may be removed to a suitable, protected storage location during historic treatment and cleaned and reinstalled in their original locations after historic treatment operations are complete.

C. Storage and Protection: When removed from their existing location, store historic materials within a weathertight enclosure where they are protected from wetting by rain, snow, or ground water, and temperature variations. Secure stored materials to protect from theft.

1. Identify removed items with an inconspicuous mark indicating their original location.

D. Re-casting of Existing Stone features: When indicated, provide concrete cast of any intricate stonework required for duplication or posterity. Provide concrete cast to the Contracting Officer upon completion of the project.

1.6 PROJECT-SITE CONDITIONS

A. Exterior Cleaning and Repairing:

1. Proceed with the work only when forecasted weather conditions are favorable.

a. Wet Weather: Do not attempt repairs during rainy or foggy weather. Do not apply primer, paint, putty, or epoxy when the relative humidity is above 80 percent. Do not remove exterior elements of structures when rain is forecast or in progress.

b. Do not perform exterior wet work when the air temperature is below 40 deg F.

c. Do not begin cleaning, patching, or repairing when there is any likelihood of frost or freezing.

d. Do not begin cleaning when either the air or the surface temperature is below

45 deg F unless approved means are provided for maintaining a 45 deg F temperature of the air and materials during, and for 48 hours subsequent to, cleaning.

2. Perform cleaning and rinsing of the exterior only during daylight hours.

1.7 MEASUREMENT AND PAYMENT

A. No separate payment will be made for the work included under this section; rather payment shall be included in the items of work listed in the Schedule of Items.

HISTORIC TREATMENT PROCEDURES 013591-4

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION

3.1 PROTECTION, GENERAL

A. Comply with manufacturer's written instructions for precautions and effects of products and procedures on adjacent building materials, components, and vegetation.

B. Ensure that supervisory personnel are present when work begins and during its progress.

C. Temporary Protection of Historic Materials during Construction:

1. Protect existing materials during installation of temporary protections and construction. Do not deface or remove existing materials.

2. Attachments of temporary protection to existing construction shall be approved by Contracting Officer and Architect prior to installation.

D. Protect landscape work adjacent to or within work areas as follows:

1. Provide green construction fence to protect tree trunks, by placing fencing along the drip line of the tree.

2. Bind spreading shrubs in a manner approved by the Contracting Officer.

3. Use coverings that allow plants to breathe and remove coverings at the end of each day. Do not cover plant material with a waterproof membrane for more than 8 hours at a time.

4. Provide ground protection mats to limit ground compaction.

5. Set scaffolding and ladder legs away from plants.

3.2 PROTECTION DURING APPLICATION OF CHEMICALS

A. Protect persons, motor vehicles, surrounding surfaces of building being restored, building site, plants, and surrounding buildings from harm or damage resulting from applications of chemical cleaners and paint removers.

B. Cover adjacent surfaces with materials that are proven to resist chemical cleaners selected for Project unless chemicals being used will not damage adjacent surfaces. Use covering materials that contain only waterproof, UV-resistant adhesives. Apply masking agents to comply with manufacturer's written instructions. Do not apply liquid masking agent to painted or porous surfaces. When no longer needed, promptly remove masking to prevent adhesive staining.

C. Do not clean surfaces during winds of sufficient force to spread cleaning solutions to unprotected surfaces.

D. Immediately neutralize and collect alkaline and acid wastes and dispose of off Government’s property.

E. Immediately dispose of runoff from chemical operations by legal means and in a manner that prevents soil erosion, undermining of paving and foundations, damage to landscaping, and water penetration into building interiors.

HISTORIC TREATMENT PROCEDURES 013591-5

3.3 PROTECTION DURING USE OF HEAT-GENERATING EQUIPMENT

A. Comply with the following procedures while performing work with heat-generating equipment, including welding, cutting, soldering, brazing, paint removal with heat, and other operations where open flames or implements utilizing heat are used:

1. Obtain the Contracting Officer’s approval for operations involving use of open-flame or welding equipment.

a. Notification shall be given for each occurrence and location of work with heat-generating equipment.

2. As far as practical, use heat-generating equipment outside the building.

3. Before work with heat-generating equipment commences, furnish personnel to serve as a fire watch (or watches) for location(s) where work is to be performed.

4. Do not perform work with heat-generating equipment in or near rooms or in areas where flammable liquids or explosive vapors are present or thought to be present.

Use a combustible gas indicator test to ensure that the area is safe.

5. Remove and keep the area free of combustibles, including, rubbish, paper, waste, etc., within area of operations.

a. If combustible material cannot be removed, provide fireproof blankets to cover such materials.

6. Where possible, furnish and use baffles of metal or gypsum board to prevent the spraying of sparks or hot slag into surrounding combustible material.

7. Prevent the extension of sparks and particles of hot metal through open windows, doors, holes, and cracks in floors, walls, ceilings, roofs, and other openings.

8. Inspect each location of the day's work not sooner than 30 minutes after completion of operations to detect hidden or smoldering fires and to ensure that proper housekeeping is maintained.

3.4 HISTORIC TREATMENT PROCEDURES

A. The principal aim of preservation work is to halt the process of deterioration and stabilize the item's condition, unless otherwise indicated. Repair is required where specifically indicated. The Contractor shall adhere to the following procedures, which are required to be outlined in the approved Historic Treatment Program submittal:

1. Retain as much existing material as possible; repair and consolidate rather than replace.

2. Use additional material or structure to reinforce, strengthen, prop, tie, and support existing material or structure.

3. Use reversible processes wherever possible.

4. Use traditional replacement materials and techniques. New work shall be distinguishable to the trained eye, on close inspection, from the original work.

5. Record the work before the procedure with preconstruction photos and during the work with periodic construction photos.

6. Identify and catalog individual pieces of stone that are required to be reset.

HISTORIC TREATMENT PROCEDURES 013591-6

B. Prohibit smoking by personnel performing work on or near historic structures.

C. Obtain Contracting Officer’s review and written approval in the form of a Constructive Change Directive or Supplemental Instruction before making changes, replacing existing features or additions to construction or removing historic materials.

D. Notify Contracting Officer of visible changes in the integrity of material or components whether due to environmental causes including biological attack, UV degradation, freezing, or thawing; or due to structural defects including cracks, movement, or distortion.

1. Do not proceed with the work in question until directed by Contracting Officer.

E. Where missing features are indicated to be repaired or replaced, provide features whose designs are based on accurate duplications rather than on conjectural designs, subject to the approval of the Contracting Officer’s Representative and Historic Treatment Specialist.

F. Where Work requires existing features to be removed, cleaned, and reused, perform these operations without damage to the material itself, to adjacent materials, or to the substrate.

G. Where existing features require full removal and disposal, catalog those features to the extent of being able to procure new materials that match their salient characteristics.

Dispose materials offsite in accordance with Section 024100.

H. Identify new or replacement materials and features with inconspicuous, permanent marks to distinguish them from original materials. Record the legend of identification marks and the locations of these marks on Record Drawings.

I. When cleaning, match samples of existing materials that have been cleaned and identified for acceptable cleaning levels. Avoid overcleaning to prevent damage to existing materials during cleaning.

J. Contractor shall request metal frame from Grey Towers to provide new concrete cast of Schooner centerpiece. New casting shall match the existing size, shape, color and schooner imprint in the center. Metal imprint frame shall be returned to Grey Towers in its original condition. Return original schooner centerpiece to Grey Towers for storage.

END OF SECTION 013951

QUALITY CONTROL 014100-1

GREY TOWERS HISTORIC TERRACES AND WALKWAY PRESERVATION

SECTION 014100 – QUALITY CONTROL

PART 1 - GENERAL

1.1 This work shall consist of providing quality control in conformance with the inspection, testing, and product certification requirements of this contract to ensure compliance with the drawings and specifications. The Contractor shall provide all personnel, equipment, tests, and reports necessary to meet the requirements of the contract.

1.2 QUALITY CONTROL

A. The Contractor shall provide and maintain a quality control system that will ensure all services, supplies, and construction work required under this contract conforms to the contract requirements. The Contractor shall perform, or cause to be performed, the sampling, inspection, and testing required to substantiate that all services, supplies, and construction conform to the contract requirements.

B. Special Tests and Inspections: Contractor will engage a testing agency to conduct required special tests and inspections. The Contractor shall authorize the testing agency to perform the required testing and inspections on the work completed. The authority shall include:

1. Testing agency will interpret tests and inspections and state in each report whether tested and inspected work complies with or deviates from the Contract Documents.

2. Testing agency will re-test and re-inspect corrected work.

C. Retesting/Reinspecting: Contractor shall provide quality-control services for retesting and reinspection for replaced construction work or for work that failed to comply with the requirements under the contract.

1.3 SUBMITTALS

A. Contractor Quality Control Plan

B. Permits, Licenses, and Certificates

C. Test and Inspection Reports

D. As-Built Drawings & Operation and Maintenance Manual

E. Historic Preservation Maintenance and Repair Manual.

1.4 MEASUREMENT AND PAYMENT

A. No separate payment will be made for the work included under this section; rather payment shall be included in the items of work listed in the Schedule of Items.

QUALITY CONTROL 014100-2

PART 2 - PRODUCTS (Not Applicable)

PART 3 - EXECUTION

3.1 QUALITY CONTROL SYSTEM

A. General: Perform required testing, inspections, sampling, and similar services per direction specified in the contract drawings and specifications and in accordance with established industry standards.

3.2 CONTRACTOR QUALITY CONTROL PLAN

A. At the time of the preconstruction conference, the Contractor shall submit for approval a written Contractor Quality Control Plan.

1. If the plan requires any revisions or corrections, the Contractor shall resubmit the plan within 10 days.

2. The Government reserves the right to require changes in the plan during the contract period as necessary.

3. No change in the approved plan may be made without written concurrence by the Contracting Officer.

4. At a minimum, the plan shall include the following:

a. A list of personnel responsible for quality control and assigned duties.

Include each person's qualifications.

b. A copy of a letter of direction to the Contractor's Quality Control Supervisor outlining assigned duties.

c. Names, qualifications, and descriptions of laboratories to perform sampling and testing, and samples of proposed report forms.

d. Methods of performing, documenting, and enforcing quality control of all work.

e. Methods of monitoring and controlling environmental pollution and contamination as required by all applicable regulations and laws.

3.3 TEST AND INSPECTION REPORTS

A. Submit three copies of complete test results no later than three calendar days after the test was performed.

B. Submit failing test results and proposed remedial actions within four hours of noted deficiency.

C. Testing and Inspection Reports shall include the following:

1. Date of issue.

2. Project title and number.

3. Name, address, and telephone number of testing agency.

4. Dates and locations of samples, tests, or inspections.

5. Names of individuals performing tests and inspections.

QUALITY CONTROL 014100-3

6. Reference Specification Section(s).

7. Complete test or inspection data.

8. Test and inspection results and an interpretation of test results.

9. Ambient conditions at time sample was taken, tested, or inspected.

10. Comments or professional opinion on whether tested or inspected work complies with the Contract Document requirements.

11. Name and signature of laboratory inspector.

12. Recommendations on retesting and reinspecting.

3.4 PERMITS, LICENSES, AND CERTIFICATES

A. For Contracting Officer’s records, submit copies of permits, licenses, certifications, inspection reports, releases, jurisdictional settlements, notices, receipts for fee payments, judgments, correspondence, records, and similar documents, established for compliance with standards and regulations relevant to the on performance of the work.

3.5 AS-BUILT DRAWINGS & OPERATIONS AND MAINTENANCE MANUAL

A. The Contractor shall maintain a set of the contract drawings depicting as-built conditions.

These drawings shall be maintained in a current condition and shall be available for review. All variations from the original contract drawings shall be indicated in red on the drawings. Upon completion of the contract work, as-built drawings shall be submitted to the Contracting Officer.

B. The Contractor shall provide an Operations and Maintenance Manual for all the preservation work associated with this project (see Schedule of Items). The Contractor shall include photos or video documenting all phases of work.

3.6 SAMPLING, TESTING, AND CERTIFICATION REQUIREMENTS

A. Sampling, testing, and Certification requirements and frequency for specific items shall be as specified in the drawings and specification. The following table is a summary of the required sampling, testing, and certification for the project - the table is to assist the Contractor, but may not be all inclusive – additional submittals may be required by specific specification section:

B.

TABLE 014100-1

Item

Subsection Certification or Test Required

Frequency

033000 3.12 Concrete – Slump, Air, Temperature

1 composite per truck load delivered

033000 3.12 Concrete - Compression Test Specimens at 7 days and 28 days (see spec)

END OF SECTION 014100

QUALITY CONTROL 014100-4

SEDIMENT AND EROSION CONTROL 023701-1

GREY TOWERS HISTORIC TERRACES AND WALKWAY PRESERVATION

SECTION 023701 - SEDIMENT AND EROSION CONTROL MEASURES

PART 1 - GENERAL

1.1 The work under this section consists of furnishing all necessary labor, equipment, materials, and performing all operations in connection with construction sediment and control measures.

A. General

1. All erosion and sediment control measures are to be placed prior to any disturbance caused by grading and or excavation and shall conform to the requirements of the appropriate regulatory agency for the State.

2. The Contractor shall be solely responsible for ensuring that erosion and sediment control measures are implemented and maintained at the site.

3. Soil disturbing activities include but are not limited to: Clearing and grubbing, excavation for utilities and foundations, roadway and parking lot construction, construction or modification of site drainage, grading, and preparation for final seeding.

1.2 SUBMITTALS

A. The Contractor shall be required to submit a sediment and erosion control plan in accordance with this specification for approval by the Contracting Officer 2 weeks prior to start of work.

1.3 MEASUREMENT AND PAYMENT

A. No separate measurement and/or payment will be made for this section. Payment shall be included with work shown in the schedule of items.

PART 2 - PRODUCTS

2.1 SYNTHETIC FILTER FABRIC FOR SILT FENCES.

A. Pervious sheet of polypropylene, nylon, or polyethylene fabric conforming to the following physical and hydraulic characteristics:

• Physical Properties

(Min.)

Requirement Test Method

• Grab Tensile, lbs. W120/F100 ASTM-D-4632

• Grab Elongation, % 15 ASTM-D-4632

• Mullen Burst, psi 275 ASTM-D-3786

• Puncture, lbs. 65 ASTM-D-4833

SEDIMENT AND EROSION CONTROL 023701-2

• Trapezoidal Tear, lbs. 50 ASTM-D-4533

• UV Resistance, % 80 ASTM-D-4355

• AOS, US Sieve # 30/40 ASTM-D-4751

• Permittivity gal/min-sq. ft. 90 ASTM-D-4491

B. Filter fabric should contain ultraviolet ray inhibitors and stabilizers to provide a minimum of 6 months of expected usable construction life at a temperature range of 0 to 120 F.

C. Support Posts: 4 foot - 2 x 2 wood.

2.2 STRAW BALES

A. Oat or wheat straw, free from weeds, viable weed seeds, foreign matter detrimental to plant life, and dry.

1. Grass hay bales are not acceptable.

2. To prevent deterioration of the bindings, all bales shall be either wire-bound or string-tied so that bindings are oriented around the sides rather than along the tops and bottoms of the bales.

2.3 STRAW WATTLES OR ROLLS

A. Furnish straw wattles or rolls that are manufactured from weed free straw and wrapped in a tubular photodegradable plastic netting made from 85% high density polyethylene, 14% ethyl vinyl acetate and 1% color for UV inhibition. Conform to the following:

1. Diameter 9 inches min.

2. Netting strand thickness 0.030 inches

3. Netting knot thickness 0.055 inches

4. Mass of netting 0.315 to 0.385 ounces per foot

2.4 GRAVEL BAGS

A. Furnish woven fabric bags with a minimum water flow rating of 145 gallons per minute per foot (1.8 cubic meters per minute per meter) as tested by ASTM D4491. Fill the bags with clean, coarse aggregate.

2.5 SANDBAGS

A. Furnish clean, silt free material for sand filler. Conform to the following:

1. Bag Material Canvas, Geotextile, or Burlap

2. Volume per Bag: 1/3 ft 3 (0.01 m 3) min.

PART 3 - EXECUTION

3.1 CONSTRUCTION

SEDIMENT AND EROSION CONTROL 023701-3

A. Install straw bales at local drainage ways to prevent silt intrusion upon adjacent drainage courses.