Appendix_D_-_Specifications(2017.07.24).pdf

APPENDIX D

SPECIFICATIONS

Phase 2 Remdial Action: Lord Brook Source Areas Elizabeth Mine Superfund Site

South Strafford, Vermont

TABLE OF CONTENTS

DIVISION 1 – GENERAL REQUIREMENTS

01 11 00 Summary of Work

01 32 01.00 10 Project Schedule 01 33 00 Submittal Procedures

01 35 26 Governmental Safety Requirements

01 35 29.13 Health, Safety, and Emergency Response Procedures for Contaminated Sites

01 45 00.00 10 Quality Control 01 45 00.15 10 Resident Management System Contractor Mode (RMS) 01 57 20 Environmental Protection 01 74 19 Construction and Demolition Waste Management 01 78 29 Survey

DIVISION 2 – SITE CONSTRUCTION

02 52 13 Surface Water pH Adjustment

DIVISION 3 – CONCRETE

03 37 13 Shotcrete

DIVISION 31 – EARTHWORK

31 05 19 Geosynthetics 31 11 00 Clearing and Grubbing 31 23 00 Earthwork 31 23 10 Controlled Blasting 31 23 23 Flowable Fill 31 25 13 Erosion and Sedimentation Control 31 37 00 Riprap and Stone Fill

DIVISION 32 – EXTERIOR IMPROVEMENTS

32 71 00 Site Restoration and Wetland Construction 32 92 00 Seeding

DIVISION 33 – UTILITIES

33 41 00 Storm Culvert Piping

TOC-1

Final Design

September 2014

Final Design September 2014

DIVISION 1

GENERAL REQUIREMENTS

Phase 2 Remedial Action: Lord Brook Source Areas

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SECTION 01 11 00

SUMMARY OF WORK

PART 1 - GENERAL

1.01 DESCRIPTION

A. This section is intended to provide a summary of the Project and the various elements of work associated with it. This summary should be used in conjunction with other specification sections, the Drawings and other documentation included with the Contract Documents. This section does not provide technical detail for particular work activities, but describes the work as a whole, providing an overall perspective to the separate tasks and their interrelationships.

B. The work is being performed in accordance with the Record of Decision (ROD) for the

Elizabeth Mine Superfund Site, Town of South Strafford, Orange County, Vermont by the Environmental Protection Agency (EPA) dated September 2006. The remediation is being undertaken by the EPA.

C. The work is also being performed in accordance with the approved Basis of Design

Report, South Mine/South Open Cut Remedial Design, prepared by AMEC Environment & Infrastructure, Inc., dated September 2014.

D. The scope of work consists of the Operable Unit 1 (OU-1) remediation at the South Open

Cut (SOC) and the South Mine (SM) sites within the Elizabeth Mine Superfund Site and includes the following:

1. South Open Cut

Partial filling of the SOC Pit Lake will be conducted by blasting bedrock and collapsing the blasted rock from the SOC west face into the lake, as well as using existing waste soil/rock excavated from other locations as part of source removal activities, including: South Mine, jeep trail/gravel road removal, diversion ditches, and Haulage Way. A vegetated low permeability soil cover will be constructed over the reconsolidated rock fill and waste rock/soil.

Filling of the Dry Crevasse will also be conducted using existing waste soil/rock excavated from other locations as part of source removal activities, including: South Mine, gravel road removal, diversion ditches, and Haulage Way. A vegetated low permeability soil cover will be constructed over the reconsolidated waste rock/soil. Slumped and unstable bedrock within the Dry Crevasse will require removal and sizing by blasting or other mechanical means prior to soil cover construction.

Ground agricultural lime/ limestone will be incorporated into the rock fill and waste rock/soil prior to soil cover construction over the pit lake and Dry Crevasse.

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Prior to filling the SOC Pit Lake, water in the lake will be pre-treated to raise pH to facilitate precipitation/settling of metals. Following treatment the lake will be drained by pumping to TP-3 and into the Copperas Brook watershed or the North Open Cut and into the underground workings.

The existing gravel road and adjacent waste rock/soil spoils will be removed and placed within the drained SOC Pit Lake or Dry Crevasse.

The gravel road to the west of the SOC Pit Lake and Dry Crevasse will be reconstructed including a roadside ditch (diversion channel) upgradient of the west side of the cut. The ditch will redirect stormwater runoff around the pit lake and Dry Crevasse. The diversion ditch will be lined with low permeability soil to minimize infiltration and seepage of runoff into the SOC Pit Lake and Dry Crevasse.

Installation of an anoxic limestone drain below cover soils within the Haulage Way at the south end of the pit lake for passive treatment of subsurface seepage from the pit lake.

An open limestone channel will be constructed that will receive surface water flow from the roadside diversion channel, partially filled SOC Pit Lake, and Dry Crevasse.

Waste soil/rock remaining in the lower 2/3 (eastern 2/3) of the Haulage Way will be removed by ripping and/or blasting and placed within the SOC Pit Lake or Dry Crevasse. A clean soil cover will be constructed over completed areas and re-vegetated.

The side slopes in the upper 1/3 (western 1/3) of the Haulage Way will be flattened and stabilized to a slope of 3H:1V (horizontal to vertical).

Completed slopes will be covered with a vegetated soil cover. Removed rock and soil shall be placed within the SOC Pit Lake or Dry Crevasse.

2. South Mine Construct a diversion channel upgradient of the cut on the west side of the existing gravel road to redirect stormwater runoff around the pit lake.

Fill in the pit lake and associated underground cavern beginning with dewatering the lake and breaking and knocking overhanging rock shelves and drop into the pit lake. Fill the lower portions of the pit lake and underground cavern with flowable fill so that not equipment or personnel are required to enter the cavern. Finish filling with wetland topsoil and seed with wetland mix.

Fill in the existing vertical mine shaft with rock and stone. Stone/rock size shall be incrementally reduced in size as the fill approaches the surface and finish with wetland topsoil and seed with wetland mix.

Install an open limestone channel down gradient from the pit lake.

At designates areas shown on the drawings, remove existing waste soil/rock remaining within the South Mine area. Apply ground limestone over the competed waste soil/rock removal area to treat any existing soil remaining prior to soil cover placement. Provide a clean soil cover over completed areas and re-vegetate.

Construct several mitigation wetlands is low areas and depressions within the South Mine site.

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Place all excess waste rock/soil materials excavated during construction activities at the South Mine in the South Open Cut Pit Lake or Dry Crevasse

3. Site Restoration and Wetland Construction The scope of the work also includes site restoration and wetland construction as shown on the construction drawings and specified in the technical specifications. The objectives of the wetlands and ecological restoration project described herein are to replace wetland functions and values that have been lost due to remedial actions, restore the ecological value of portions of other disturbed areas of the site, and improve the ability of disturbed areas to retard and filter surface water as these areas return to a naturally vegetated condition.

The wetland restoration work will construct or restore wetlands intended to compensate for the loss of wetland function caused by remedial activities. This design applies to the second phase (Phase 2) of restoration; four areas south of Mine Road. Restoration north of and adjacent to Mine Road was previously completed in 2013 (Phase 1).

The Phase 2 ecological provides for restoration of the natural environment, according to the objectives named above, in four areas:

1. South Mine

2. Haulage Way

3. Former TP-4

4. Former TP-3

1.02 WORK COVERED BY THE CONTRACT DOCUMENTS

The work shall primarily consist of, but not necessarily be limited to, the following activities:

A. Comply with the requirements of all permits, and providing all services, utilities, equipment, and facilities required to perform the work activities in accordance with these Specifications, the Drawings, and the ROD.

B. CONTRACTOR must accommodate all Federal government (e.g., EPA, USACE) inspections without change in work schedule. Any local/state (Town of South Strafford, Orange County, State of Vermont) inspections and comments should be directed to the CONTRACTING OFFICER or USACE on-site representative.

C. CONTRACTOR shall submit a Construction Work Plan for review and acceptance by the

United States Army Corps of Engineers (USACE), which contains, at a minimum:

1. Proposed sequence, equipment, and methods for the performance of site preparation (e.g., temporary site facilities and controls including utilities; soil erosion and sediment control requirements; etc.);

2. Proposed sequence, equipment, and methods for the excavation, removal, handling and placement of mine waste soil/rock materials;

3. Proposed sources and delivery method(s) for limestone, organic materials, topsoil;

4. Proposed sequence, equipment, and methods for construction of wetlands;

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5. Proposed methods of handling, managing, treating, and discharging of impacted stormwater and/or groundwater;

6. Proposed method(s) of handling, stockpiling, placing and compacting cover soil materials;

7. Proposed method(s) of site restoration;

8. Traffic and Site Access Control Plan. Include the routes, size/load, and frequency of haul trucks providing off-site material to the project site.

D. Pre-Construction Activities The CONTRACTOR shall prepare, submit, and implement the required plans prior to commencing construction.

E. Mobilization and Site Preparation Mobilization and site preparation activities shall include furnishing all labor, material and equipment to provide the following:

1. Equipment and material staging and storage areas;

2. Personnel decontamination and hygiene facilities as required per the HASP;

3. Access and site controls (e.g., temporary fencing and barricades) to isolate the work area; and

4. Temporary by-pass for stormwater runoff as needed to perform the Work;

F. Erosion and Sedimentation Control Erosion and Sedimentation Control activities shall include preparation of an Erosion Prevention and Sediment Control (EPSC) Plan and furnishing all labor, material and equipment to provide the following:

1. The means and methods required to minimize erosion and sedimentation in accordance with Section 31 25 00 - Erosion and Sedimentation Control, the Vermont Standards and Specifications for Erosion Prevention and Sediment Control, and the Vermont General Permit for Stormwater Runoff from Construction Sites (General Permit 3-9020).

2. Temporary soil erosion and sedimentation control shall be installed and maintained for the construction activities as outlined in the approved EPSC Plan and as shown on the Drawings.

G. Remedial Construction: The remedial construction shall include the activities described in Item 1.01.C above. Restoration shall be conducted to re-vegetate disturbed areas including conducting wetland plantings.

H. Demobilize from the Site - The work shall include furnishing all labor, equipment, and materials to perform the following:

1. Remove temporary facilities, site/access controls, and erosion and sedimentation controls; and

2. Clean the Site.

1.03 WORK SEQUENCE

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A.

The work shall be planned, scheduled, and performed in stages in order to complete the work within the requirements of the Contract Documents and the appropriate regulatory agencies and permits. Normal work hours are from 7 AM to 7 PM, Monday through Friday. The contractor will not be permitted to work on Saturday, Sunday or legal holidays unless otherwise authorized by the Contracting Officer.

B. The CONTRACTOR shall select a work sequence that minimizes:

1. Impacts to the surrounding residents.

2. Traffic congestion.

C. Project Startup

1. Project startup shall include the following activities, which are not necessarily in order:

a. Attend a Pre-Construction Meeting;

b. Develop and submit all required pre-construction submittals for acceptance;

c. Complete initial inspections and surveys or work areas as required to verify existing conditions and potential issues that could impact the work;

d. Provide required entrance medical examinations for employees designated to work on the project in accordance to the HASP;

e. Conduct site-specific safety training in accordance with the HASP; and

f. Secure required permits.

2. Begin construction after receipt of and meeting the conditions noted in the Notice to Proceed.

D. Remedial Construction

1. The remedial construction shall include the activities described in Item 1.03

(Work Covered by the Contract Documents) above.

E. Project Closeout

1. Request a Certificate of Substantial Completion from the USACE;

2. Perform a Site inspection with the USACE to accept work and identify remaining work to be completed (punch list);

3. Complete all remaining work noted in the punch list;

4. Perform a final Site inspection with the USACE to verify all work is complete;

5. Submit final record documents including final certification report with record drawings to the USACE;

6. Complete final pay requisition with accompanying balancing change order as required; and

7. Achieve Final Completion.

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1.04 OTHER GENERAL REQUIREMENTS

A. Comply with all Project related permits and apply/obtain all CONTRACTOR responsible permits prior to the commencement of work.

B. Make arrangements for temporary storage of materials and supplies and for timely delivery to the job site.

C. Assist the USACE and City/County/State inspectors as required in the review of construction.

D. Provide quality control activities including observing, measuring, inspecting, documenting, sampling, and testing to demonstrate that Work performed and/or products/materials provided and installed meet the requirements of the Contract Documents and the quality specified therein.

E. Maintain up-to-date records on site.

F. Maintain the project Site in a neat condition.

PART 2 - PRODUCTS

Not Applicable

PART 3 - EXECUTION

3.01 HEALTH AND SAFETY

A. The CONTRACTOR is advised that the Work will be performed on a Site that may contain hazardous waste. The CONTRACTOR is responsible for developing a Site Specific Health and Safety Plan (HASP) for its operations. The CONTRACTOR shall implement this plan taking precautions as necessary to protect the public and work force personnel from potential hazards. The CONTRACTOR shall utilize personnel with approved hazardous waste training as required.

C. Several safety hazards to workers, authorized visitors, and trespassers exist at the

Elizabeth Mine Site. In addition, several environmental hazards exist due to presence of waste soil/rock and impacted water within the pit lakes. The paragraphs below describe safety and environmental hazards at the South Open Cut (SOC) and South Mine areas of the Site that will be improved by remedial construction activities.

D. The Site is a former mining site with possible hazards associated with shafts, adits, barbed wire, and underground workings. Previous investigations have identified areas where vehicle activity should be restricted due to the subsurface voids. Contractor shall become familiar with site hazards and the plan should include the possibility of additional

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E. The side walls of the SOC Dry Crevasse and Haulage Way currently rise at a slope ranging from approximately 0.5H:1V to 2H:1V and have experienced rock slide/falls in the past. The surface of the side walls is currently comprised of weathered, “rotten” rock that routinely breaks off the side walls posing a hazard to persons in the dry crevasse or haulage way below. Large rock segments are located within the bottom of the dry crevasse.

D. The west face of the South Open Cut Pit Lake has experienced historical movement of bedrock and rock slides. A rock stability evaluation (Appendix H) indicates the projection of a hypothetical 40° failure plane from the bottom of the pit lake, which is representative of worst case maximum structural features and jointing in the bedrock, shows that the existing access road and diversion ditch will lay outside and to the west of the 40° impact zone. The projection of a hypothetical 30° failure plane, which is representative of the extreme low-risk limit of structural features and jointing in the bedrock, shows that the existing access road and diversion ditch will lie within 30° impact zone. The filling of the pit lake will be conducted in a manner that 1) avoids risk to construction personnel and equipment, and 2) prevents a non-construction-related rock slide at some future date that could compromise completed work and/or pose a risk to site visitors. The remedy will provide a final 30-degree rock slope as well as a buttress effect from the rock fill.

E. Safety zones will be established and clearly delineated in the field. Safety zones are expected to include: an Exclusion Zone, Hazard Zone, Low Hazard Zone, and Safe Zone based on potential rock failure planes of 50º or steeper, 40º to 50º, 30º to 40º, and flatter than 30º respectively as measured from the bottom of the South Open Cut Pit Lake.

1. The Exclusion Zone is represented as the area between the pit lake rim and the current 50º rock failure plane where no personnel or equipment would be allowed.

2. The Hazard Zone is represented as the area between the current 40º to 50º rock failure planes where access is restricted to approved active equipment and workers. Workers would be required to be tethered off within the Safe Zone and shall not work down slope of equipment. Approved equipment would be limited to smaller equipment (less than 4 tons). No equipment or material staging will be permitted in this zone.

3. The Low Hazard Zone is represented as the area between the current 30º to 40º rock failure planes where access is restricted to approved active equipment and workers. Workers would not be required to be tethered and approved equipment would be limited to medium equipment (less than 12 tons). No equipment or material staging will be permitted in this zone.

4. The Safe Zone is represented as the area beyond the current 30º rock failure planes where access is not restricted. Equipment or material staging will be permitted in this zone.

F. During pre-treatment for pH and dewatering of the pit lakes, safety considerations in the

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CONTRACTOR’s Health and Safety Plan will need to address possibilities for leaks in pumps and hoses, and anchoring the equipment to avoid danger to personnel (as well as the environment). Decontamination of the pumps and hosing would also be required.

G. Rock removal operations conducted as part of the remedial construction, including drilling and blasting, shall be conducted in accordance all applicable federal and state regulations as well as the CONTRACTOR’s approved Health and Safety Plan and Blasting Plan.

H. Following the west face rock removal and pit lake filling, establishing a safe construction access to the pit lake will be required. Access may be provided by advancing through either or both the Haulage Way and the south end of the Dry Crevasse. Access through the Haulage Way and Dry Crevasse will require additional rock removal to advance and establish a safe stable corridor.

I. The South Mine pit lake opens to a cavernous void beneath the water’s surface. The exposed rock face on the east side of the South Mine pit lake is essentially a large overhanging unstable outcrop that poses a risk due to the potential for the rock outcrop to break away. Remedial construction activities will mitigate this risk by dewatering the pit lake then demolishing a portion of the outcrop to a stable face with the rock falling to the pit lake floor. Controlled low strength material (i.e., flowable fill) will be used to fill the remainder of the bottom portion of the cavern and pit lake so that construction personnel or equipment will not need to enter the cavern. The flowable fill will stabilize the void beneath the remaining exposed rock at the surface. The upper portion will receive a final wetland vegetated cover system. To the observer, the end result will be a topographically depressed area where the pit lake once existed with the exposed rock outcrop with a stable surface.

J. To the north of the South Mine pit lake is a vertical mine shaft that poses a fall hazard.

During a pumping operation conducted in October 2013, the shaft was determined to be an approximately 6- by 9-foot opening. Three to four feet of water was pumped from the shaft prior to reaching a very soft muck. In May, 2014, a man-portable geoprobe was setup on the plank cover placed over the shaft opening in December 2013. The muck in the shaft provided only limited resistance to the drill rods, and they advanced under their own weight to 27 feet below the top of the cover. The depth to competent bottom was interpreted to be 27 feet below the top of the cover. Following the removal of accumulated muck, the majority of the shaft will be filled with stone and a final wetland vegetative cover will be installed.

K. Exposed waste rock and soil at the South Open Cut and South Mine areas pose an environmental concern due to their acid generating potential. Soil from the South Mine and waste rock/soil excavated from the haulage way and diversion channels will be consolidated in the dry crevasse, over waste rock already present in the dry crevasse. The dry crevasse will receive a soil cover over the waste rock and soil. Excavated areas in the haulage way and South Mine will be restored with a soil cover and seed and the diversion channels will receive linings. Erosion and sediment control best management practices must be used throughout remedial construction.

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L. The pit lakes at the South Open Cut and South Mine present an environmental hazard due to the low pH and high metals content of the water. Both the SOC Pit Lake and the South Mine pit lake will be filled in and cover systems installed during remedial activities, eliminating these sources.

3.02 PROTECTION OF PROPERTY AND OPERATIONS

A. The CONTRACTOR shall utilize every precaution to protect the property from damage during execution of the work. Trees and other structures shall be protected as appropriate. Any damage that the CONTRACTOR may inflict shall be repaired or replaced in a prompt manner as directed by the USACE at no additional cost to the

USACE.

B. Areas for CONTRACTOR staging and storage shall be approved by the

CONTRACTING OFFICER. Suitable areas adjacent to the work are preferred for staging areas as indicated on the drawing. An existing parking area is located near the current gate at the former mine process area located off Mine Road and can be used for worker parking. Existing trailers with a power supply are located past the existing gate and is a preferred location for the CONTRACTOR’s office trailer.

C. The CONTRACTOR shall take all measures required to minimize adverse impacts from execution of the work on property abutters and shall not interfere with their operations.

D. The CONTRACTOR shall coordinate site restrictions and vehicular/pedestrian traffic control plans with the USACE as appropriate.

E. CONTRACTOR shall record baseline digital photo-documentation video and photographs of the Site structures and surroundings prior to commencing work; refer to Specification Section 01 57 20 Environmental Protection for additional requirements.

Digital photo-documentation includes pre-construction as well as construction progress and post construction documentation of the dry crevasse, haulage way, South Open Cut pit lake, South Mine pit lake, vertical shaft at South Mine, and other areas as directed by the CONTRACTING OFFICER prior being to work activities.

3.03 CONTRACTOR'S USE OF PREMISES

A. The CONTRACTOR shall use only those designated areas of the Site for staging and storage. Staging and storage areas are to be agreed upon and accepted by USACE.

B. NO SMOKING will be allowed within the Site work areas.

C. The CONTRACTOR shall assume full responsibility for the protection and safe keeping of products and equipment under this Contract that are stored on-site during the Project construction.

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3.04 OTHER REQUIREMENTS

A. It is the responsibility of the CONTRACTOR to coordinate and provide timely notification to the Owner and operators of underground utilities when construction, excavation, or other work may affect such utilities.

B. It is the responsibility of the CONTRACTOR to notify the appropriate local authority in the City and/or County when construction or associated impacts will occur within the road right-of-way and/or may affect roadways or sidewalks.

C. The CONTRACTOR is responsible for using special care and/or special considerations which may be necessary for proper execution of the Work, but which may not be specifically identified in this section. The CONTRACTOR shall comply with the entire requirements of the Contract Documents and shall exercise special care wherever required for proper execution of the intended work of this contract.

D. The CONTRACTOR shall comply with all the requirements of any permits, which have been obtained, or applied for by the USACE and are included (permit or application) as part of Contract Documents.

E. Work of others at the Site is not to interfere with CONTRACTOR schedule.

END OF SECTION

Elizabeth Mine Superfund Site, South Stratford, Vermont

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 32 01.00 10

PROJECT SCHEDULE

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 PROJECT SCHEDULER QUALIFICATIONS

PART 2 PRODUCTS

2.1 SOFTWARE

2.1.1 Government Default Software

2.1.2 Contractor Software

2.1.2.1 Primavera

2.1.2.2 Other Than Primavera

PART 3 EXECUTION

3.1 GENERAL REQUIREMENTS

3.2 BASIS FOR PAYMENT AND COST LOADING

3.2.1 Activity Cost Loading

3.2.2 Withholdings / Payment Rejection

3.3 PROJECT SCHEDULE DETAILED REQUIREMENTS

3.3.1 Level of Detail Required

3.3.2 Activity Durations

3.3.3 Procurement Activities

3.3.4 Mandatory Tasks

3.3.5 Government Activities

3.3.6 Standard Activity Coding Dictionary

3.3.6.1 Workers Per Day (WRKP)

3.3.6.2 Responsible Party Coding (RESP)

3.3.6.3 Area of Work Coding (AREA)

3.3.6.4 Modification Number (MODF)

3.3.6.5 Bid Item Coding (BIDI)

3.3.6.6 Phase of Work Coding (PHAS)

3.3.6.7 Category of Work Coding (CATW)

3.3.6.8 Feature of Work Coding (FOW)

3.3.7 Contract Milestones and Constraints

3.3.7.1 Project Start Date Milestone and Constraint

3.3.7.2 End Project Finish Milestone and Constraint

3.3.7.3 Interim Completion Dates and Constraints

3.3.7.3.1 Start Phase

3.3.7.3.2 End Phase

3.3.8 Calendars

3.3.9 Open Ended Logic

3.3.10 Default Progress Data Disallowed

3.3.11 Out-of-Sequence Progress

3.3.12 Added and Deleted Activities

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3.3.13 Original Durations

3.3.14 Leads, Lags, and Start to Finish Relationships

3.3.15 Retained Logic

3.3.16 Percent Complete

3.3.17 Remaining Duration

3.3.18 Cost Loading of Closeout Activities

3.3.18.1 As-Built Drawings

3.3.18.2 O & M Manuals

3.3.19 Anticipated Adverse Weather

3.3.20 Early Completion Schedule and the Right to Finish Early

3.4 PROJECT SCHEDULE SUBMISSIONS

3.4.1 Preliminary Project Schedule Submission

3.4.2 Initial Project Schedule Submission

3.4.3 Periodic Schedule Updates

3.5 SUBMISSION REQUIREMENTS

3.5.1 Data CD/DVDs

3.5.2 Narrative Report

3.5.3 Schedule Reports

3.5.3.1 Activity Report

3.5.3.2 Logic Report

3.5.3.3 Total Float Report

3.5.3.4 Earnings Report by CLIN

3.5.3.5 Schedule Log

3.5.4 Network Diagram

3.5.4.1 Continuous Flow

3.5.4.2 Project Milestone Dates

3.5.4.3 Critical Path

3.5.4.4 Banding

3.5.4.5 Cash Flow / Schedule Variance Control (SVC) Diagram

3.6 PERIODIC SCHEDULE UPDATE

3.6.1 Periodic Schedule Update Meetings

3.6.2 Update Submission Following Progress Meeting

3.7 WEEKLY PROGRESS MEETINGS

3.8 REQUESTS FOR TIME EXTENSIONS

3.8.1 Justification of Delay

3.8.2 Time Impact Analysis (Prospective Analysis)

3.8.3 Forensic Schedule Analysis (Retrospective Analysis)

3.8.4 Fragmentary Network (Fragnet)

3.8.5 Time Extension

3.8.6 Impact to Early Completion Schedule

3.9 FAILURE TO ACHIEVE PROGRESS

3.9.1 Artificially Improving Progress

3.9.2 Failure to Perform

3.9.3 Recovery Schedule

3.10 OWNERSHIP OF FLOAT

3.11 TRANSFER OF SCHEDULE DATA INTO RMS/QCS

3.12 PRIMAVERA P6 MANDATORY REQUIREMENTS

-- End of Section Table of Contents --

SECTION 01 32 01.00 10 Page 2

SECTION 01 32 01.00 10

PROJECT SCHEDULE

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AACE INTERNATIONAL (AACE)

AACE 29R-03 (2011) Forensic Schedule Analysis

AACE 52R-06 (2006) Time Impact Analysis - As Applied in Construction

U.S. ARMY CORPS OF ENGINEERS (USACE)

ER 1-1-11 (1995) Administration -- Progress, Schedules, and Network Analysis Systems

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Project Scheduler Qualifications; G, RO

Preliminary Project Schedule; G, RO

Initial Project Schedule; G, RO

Periodic Schedule Update; G, RO

1.3 PROJECT SCHEDULER QUALIFICATIONS

Designate an authorized representative to be responsible for the preparation of the schedule and all required updating and production of reports. The authorized representative must have a minimum of 2-years experience scheduling construction projects similar in size and nature to this project with scheduling software that meets the requirements of this specification. Representative must have a comprehensive knowledge of CPM scheduling principles and application.

SECTION 01 32 01.00 10 Page 3

PART 2 PRODUCTS

2.1 SOFTWARE

The scheduling software utilized to produce and update the schedules required herein must be capable of meeting all requirements of this specification.

2.1.1 Government Default Software

The Government intends to use Primavera P6.

2.1.2 Contractor Software

Scheduling software used by the contractor must be commercially available from the software vendor for purchase with vendor software support agreements available. The software routine used to create the required sdef file must be created and supported by the software manufacturer.

2.1.2.1 Primavera

If Primavera P6 is selected for use, provide the "xer" export file in a version of P6 importable by the Government system.

2.1.2.2 Other Than Primavera

If the contractor chooses software other than Primavera P6, that is compliant with this specification, provide for the Government's use two licenses, two computers, and training for two Government employees in the use of the software. These computers will be stand-alone and not connected to Government network. Computers and licenses will be returned at project completion.

PART 3 EXECUTION

3.1 GENERAL REQUIREMENTS

Prepare for approval a Project Schedule, as specified herein, pursuant to FAR Clause 52.236-15, SCHEDULE FOR CONSTRUCTION CONTRACTS. Show in the schedule the proposed sequence to perform the work and dates contemplated for starting and completing all schedule activities. The scheduling of the entire project is required. The scheduling of constructionis the responsibility of the Contractor. Contractor management personnel must actively participate in its development. Subcontractors and suppliers working on the project must also contribute in developing and maintaining an accurate Project Schedule. Provide a schedule that is a forward planning as well as a project monitoring tool. Use the Critical Path Method (CPM) of network calculation to generate all Project Schedules.

Prepare each Project Schedule using the Precedence Diagram Method (PDM).

3.2 BASIS FOR PAYMENT AND COST LOADING

The schedule is the basis for determining contract earnings during each update period and therefore the amount of each progress payment. The aggregate value of all activities coded to a contract CLIN must equal the value of the CLIN.

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3.2.1 Activity Cost Loading

Activity cost loading must be reasonable and without front-end loading.

Provide additional documentation to demonstrate reasonableness if requested by the Contracting Officer.

3.2.2 Withholdings / Payment Rejection

Failure to meet the requirements of this specification may result in the disapproval of the preliminary, initial or periodic schedule updates and subsequent rejection of payment requests until compliance is met.

In the event that the Contracting Officer directs schedule revisions and those revisions have not been included in subsequent Project Schedule revisions or updates, the Contracting Officer may withhold 10 percent of pay request amount from each payment period until such revisions to the project schedule have been made.

3.3 PROJECT SCHEDULE DETAILED REQUIREMENTS

3.3.1 Level of Detail Required

Develop the Project Schedule to the appropriate level of detail to address major milestones and to allow for satisfactory project planning and execution. Failure to develop the Project Schedule to an appropriate level of detail will result in its disapproval. The Contracting Officer will consider, but is not limited to, the following characteristics and requirements to determine appropriate level of detail:

3.3.2 Activity Durations

Reasonable activity durations are those that allow the progress of ongoing activities to be accurately determined between update periods.

Less than 2 percent of all non-procurement activities may have Original Durations (OD) greater than 20 work days or 30 calendar days.

3.3.3 Procurement Activities

Include activities associated with the critical submittals and their approvals, procurement, fabrication, and delivery of long lead materials, equipment, fabricated assemblies, and supplies. Long lead procurement activities are those with an anticipated procurement sequence of over 90 calendar days.

3.3.4 Mandatory Tasks

Include the following activities/tasks in the initial project schedule and all updates.

a. Submission, review and acceptance of SD-01 Preconstruction Submittals (individual activity for each).

b. Submission, review and acceptance of features require design completion

c. Submission of mechanical/electrical/information systems layout drawings.

d. Long procurement activities

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e. Submission and approval of O & M manuals.

f. Submission and approval of as-built drawings.

g. Submission and approval of DD1354 data and installed equipment lists.

h. Submission and approval of testing and air balance (TAB).

i. Submission of TAB specialist design review report.

j. Submission and approval of fire protection specialist.

k. Submission and approval of Building Commissioning Plan, test data, and reports: Develop the schedule logic associated with testing and commissioning of mechanical systems to a level of detail consistent with the contract commissioning requirements. All tasks associated with all building testing and commissioning will be completed prior to submission of building commissioning report and subsequent contract completion.

l. Air and water balancing.

m. Building commissioning - Functional Performance Testing.

n. Controls testing plan submission.

o. Controls testing.

p. Performance Verification testing.

q. Other systems testing, if required.

r. Contractor's pre-final inspection.

s. Correction of punch list from Contractor's pre-final inspection.

t. Government's pre-final inspection.

u. Correction of punch list from Government's pre-final inspection.

v. Final inspection.

3.3.5 Government Activities

Show Government and other agency activities that could impact progress.

These activities include, but are not limited to: approvals, environmental permit approvals by State regulators, inspections, utility tie-in, Government Furnished Equipment (GFE) and Notice to Proceed (NTP) for phasing requirements.

3.3.6 Standard Activity Coding Dictionary

Use the activity coding structure defined in the Standard Data Exchange Format (SDEF) in ER 1-1-11. This exact structure is mandatory. Develop and assign all Activity Codes to activities as detailed herein. A template SDEF compatible schedule backup file is available on the QCS web site:

http://rms.usace.army.mil.

The SDEF format is as follows:

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Field Activity Code Length Description

1 WRKP 3 Workers per day

2 RESP 4 Responsible party

3 AREA 4 Area of work

4 MODF 6 Modification Number

5 BIDI 6 Bid Item (CLIN)

6 PHAS 2 Phase of work

7 CATW 1 Category of work

8 FOW 20 Feature of work*

*Some systems require that FEATURE OF WORK values be placed in several activity code fields. The notation shown is for Primavera P6. Refer to the specific software guidelines with respect to the FEATURE OF WORK field requirements.

3.3.6.1 Workers Per Day (WRKP)

Assign Workers per Day for all field construction or direct work activities, if directed by the Contracting Officer. Workers per day is based on the average number of workers expected each day to perform a task for the duration of that activity.

3.3.6.2 Responsible Party Coding (RESP)

Assign responsibility code for all activities to the Prime Contractor, Subcontractor(s) or Government agency(ies) responsible for performing the activity.

a. Activities coded with a Government Responsibility code include, but are not limited to: Government approvals, Government design reviews, environmental permit approvals by State regulators, Government Furnished Property/Equipment (GFP) and Notice to Proceed (NTP) for phasing requirements.

b. Activities cannot have more than one Responsibility Code. Examples of acceptable activity code values are: DOR (for the designer of record);

ELEC (for the electrical subcontractor); MECH (for the mechanical subcontractor); and GOVT (for USACE).

3.3.6.3 Area of Work Coding (AREA)

Assign Work Area code to activities based upon the work area in which the activity occurs. Define work areas based on resource constraints or space constraints that would preclude a resource, such as a particular trade or craft work crew from working in more than one work area at a time due to restraints on resources or space. Examples of Work Area Coding include different areas within a floor of a building, different floors within a

SECTION 01 32 01.00 10 Page 7 building, and different buildings within a complex of buildings.

Activities cannot have more than one Work Area Code.

Not all activities are required to be Work Area coded. A lack of Work Area coding indicates the activity is not resource or space constrained.

3.3.6.4 Modification Number (MODF)

Assign a Modification Number Code to any activity or sequence of activities added to the schedule as a result of a Contract Modification, when approved by Contracting Officer. Key all Code values to the Government's modification numbering system. An activity can have only one Modification Number Code.

3.3.6.5 Bid Item Coding (BIDI)

Assign a Bid Item Code to all activities using the Contract Line Item Schedule (CLIN) to which the activity belongs, even when an activity is not cost loaded. An activity can have only one BIDI Code.

3.3.6.6 Phase of Work Coding (PHAS)

Assign Phase of Work Code to all activities. Examples of phase of work are procurement phase and construction phase. Each activity can have only one Phase of Work code.

a. Code proposed fast track design and construction phases proposed to allow filtering and organizing the schedule by fast track design and construction packages.

b. If the contract specifies phasing with separately defined performance periods, identify a Phase Code to allow filtering and organizing the schedule accordingly.

3.3.6.7 Category of Work Coding (CATW)

Assign a Category of Work Code to all activities. Category of Work Codes include, but are not limited to construction submittal, procurement, fabrication, weather sensitive installation, non-weather sensitive installation, start-up, and testing activities. Each activity can have no more than one Category of Work Code.

3.3.6.8 Feature of Work Coding (FOW)

Assign a Feature of Work Code to appropriate activities based on the Definable Feature of Work to which the activity belongs based on the approved QC plan.

Definable Feature of Work is defined in Section 01 45 00.00 10 QUALITY CONTROL. An activity can have only one Feature of Work Code.

3.3.7 Contract Milestones and Constraints

Milestone activities are to be used for significant project events including, but not limited to, project phasing, project start and end activities, or interim completion dates. The use of artificial float constraints such as "zero free float" or "zero total float" are prohibited.

Mandatory constraints that ignore or effect network logic are prohibited.

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No constrained dates are allowed in the schedule other than those specified herein. Submit additional constraints to the Contracting Officer for approval on a case by case basis.

3.3.7.1 Project Start Date Milestone and Constraint

The first activity in the project schedule must be a start milestone titled "NTP Acknowledged," which must have a "Start On" constraint date equal to the date that the NTP is acknowledged.

3.3.7.2 End Project Finish Milestone and Constraint

The last activity in the schedule must be a finish milestone titled "End Project."

Constrain the project schedule to the Contract Completion Date in such a way that if the schedule calculates an early finish, then the float calculation for "End Project" milestone reflects positive float on the longest path. If the project schedule calculates a late finish, then the "End Project" milestone float calculation reflects negative float on the longest path. The Government is under no obligation to accelerate Government activities to support a Contractor's early completion.

3.3.7.3 Interim Completion Dates and Constraints

Constrain contractually specified interim completion dates to show negative float when the calculated late finish date of the last activity in that phase is later than the specified interim completion date.

3.3.7.3.1 Start Phase

Use a start milestone as the first activity for a project phase. Call the start milestone "Start Phase X" where "X" refers to the phase of work.

3.3.7.3.2 End Phase

Use a finish milestone as the last activity for a project phase. Call the finish milestone "End Phase X" where "X" refers to the phase of work.

3.3.8 Calendars

Schedule activities on a Calendar to which the activity logically belongs.

Develop calendars to accommodate any contract defined work period such as a 7-day calendar for Government Acceptance activities, concrete cure times, etc. Develop the default Calendar to match the physical work plan with non-work periods identified including weekends and holidays. Develop sSeasonal Calendar(s) and assign to seasonally affected activities as applicable.

If an activity is weather sensitive it should be assigned to a calendar showing non-work days on a monthly basis, with the non-work days selected at random across the weeks of the calendar, using the anticipated days provided in the contract clause TIME EXTENSIONS FOR UNUSUALLY SEVERE WEATHER. Assign non-work days over a seven-day week as weather records are compiled on seven-day weeks, which may cause some of the weather related non-work days to fall on weekends.

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3.3.9 Open Ended Logic

Only two open ended activities are allowed: the first activity "NTP Acknowledged" may have no predecessor logic, and the last activity -"End Project" may have no successor logic.

Predecessor open ended logic may be allowed in a time impact analyses upon the Contracting Officer's approval.

3.3.10 Default Progress Data Disallowed

Actual Start and Finish dates must not automatically update with default mechanisms included in the scheduling software. Updating of the percent complete and the remaining duration of any activity must be independent functions. Disable program features that calculate one of these parameters from the other. Activity Actual Start (AS) and Actual Finish (AF) dates assigned during the updating process must match those dates provided in the Contractor Quality Control Reports. Failure to document the AS and AF dates in the Daily Quality Control report will result in disapproval of the Contractor's schedule.

3.3.11 Out-of-Sequence Progress

Activities that have progressed before all preceding logic has been satisfied (Out-of-Sequence Progress) will be allowed only on a case-by-case basis subject to approval by the Contracting Officer. Propose logic corrections to eliminate out of sequence progress or justify not changing the sequencing for approval prior to submitting an updated project schedule. Address out of sequence progress or logic changes in the Narrative Report and in the periodic schedule update meetings.

3.3.12 Added and Deleted Activities

Do not delete activities from the project schedule or add new activities to the schedule without approval from the Contracting Officer. Activity ID and description changes are considered new activities and cannot be changed without Contracting Officer approval.

3.3.13 Original Durations

Activity Original Durations (OD) must be reasonable to perform the work item. OD changes are prohibited unless justification is provided and approved by the Contracting Officer.

3.3.14 Leads, Lags, and Start to Finish Relationships

Lags must be reasonable as determined by the Government and not used in place of realistic original durations, must not be in place to artificially absorb float, or to replace proper schedule logic.

a. Leads (negative lags) are prohibited.

b. Start to Finish (SF) relationships are prohibited.

3.3.15 Retained Logic

Schedule calculations must retain the logic between predecessors and successors ("retained logic" mode) even when the successor activity(s) starts and the predecessor activity(s) has not finished (out-of-sequence

SECTION 01 32 01.00 10 Page 10 progress). Software features that in effect sever the tie between predecessor and successor activities when the successor has started and the predecessor logic is not satisfied ("progress override") are not be allowed.

3.3.16 Percent Complete

Update the percent complete for each activity started, based on the realistic assessment of earned value. Activities which are complete but for remaining minor punch list work and which do not restrain the initiation of successor activities may be declared 100 percent complete to allow for proper schedule management.

3.3.17 Remaining Duration

Update the remaining duration for each activity based on the number of estimated work days it will take to complete the activity. Remaining duration may not mathematically correlate with percentage found under paragraph entitled Percent Complete.

3.3.18 Cost Loading of Closeout Activities

Cost load the "Correction of punch list from Government pre-final inspection" activity(ies) not less than 1 percent of the present contract value. Activity(ies) may be declared 100 percent complete upon the Government's verification of completion and correction of all punch list work identified during Government pre-final inspection(s).

3.3.18.1 As-Built Drawings

If there is no separate contract line item (CLIN) for as-built drawings, cost load the "Submission and approval of as-built drawings" activity not less than $35,000 or 1 percent of the present contract value, which ever is greater, up to $200,000. Activity will be declared 100 percent complete upon the Government's approval.

3.3.18.2 O & M Manuals

Cost load the "Submission and approval of O & M manuals" activity not less than $20,000. Activity will be declared 100 percent complete upon the Government's approval of all O & M manuals.

3.3.19 Anticipated Adverse Weather

Paragraph applicable to contracts with clause entitled TIME EXTENSIONS FOR UNUSUALLY SEVERE WEATHER. Reflect the number of anticipated adverse weather delays allocated to a weather sensitive activity in the activity's calendar.

3.3.20 Early Completion…