Attachment A Aqueduct McMillan Backwash Specifications 05212020.pdf

US Army Corps of Engineers Baltimore District

CONSTRUCTION

SPECIFICATIONS

MCMILLAN BACKWASH

DISCHARGE TO SEWER

WASHINGTON AQUEDUCT,

WASHINGTON, DC

DATE: MAY 21, 2020

Washington Aqueduct McMillan Backwash Discharge to Sewer-Phase II 70293600

PROJECT TABLE OF CONTENTS Page 1

PROJECT TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

01 00 00

01 05 00

01 07 00 01 32 01.00 10 01 33 00

01 33 17 01 35 26 01 42 00 01 45 00.00 10 01 45 00.15 10 01 45 35 01 50 00

01 57 20.00 10 01 74 19 01 78 00 01 78 23 01 78 24.00 10 01 91 00.15 10

ADMINISTRATIVE REQUIREMENTS

SUPPLEMENTS:

WASHINGTON AQUEDUCT RISK MANAGEMENT PROGRAM SECTIONS 11

WASHINGTON AQUEDUCT HOT-WORK PERMIT

JOB CONDITIONS

SUPPLEMENT:

RISK ASSESSMENT CHECKLIST

CUTTING, PATCHING AND REPAIRING

PROJECT SCHEDULE

SUBMITTAL PROCEDURES

SUPPLEMENT:

SUBMITTAL REGISTER

CONTRACTOR BIM MODELLING REQUIREMENTS

GOVERNMENTAL SAFETY REQUIREMENTS

SOURCES FOR REFERENCE PUBLICATIONS

QUALITY CONTROL

RESIDENT MANAGEMENT SYSTEM CONTRACTOR MODE (RMS CM)

SPECIAL INSPECTIONS

TEMPORARY CONSTRUCTION FACILITIES AND CONTROLS

SUPPLEMENT:

SAFETY SIGN

ENVIRONMENTAL PROTECTION

CONSTRUCTION AND DEMOLITION WASTE MANAGEMENT

CLOSEOUT SUBMITTALS

OPERATION AND MAINTENANCE DATA

FACILITY DATA REQUIREMENTS

TOTAL BUILDING COMMISSIONING

DIVISION 02 - EXISTING CONDITIONS

02 41 00 DEMOLITION

DIVISION 03 - CONCRETE

03 11 13.00 10 STRUCTURAL CAST-IN-PLACE CONCRETE FORMING

03 15 00.00 10 CONCRETE ACCESSORIES

03 20 00.00 10 CONCRETE REINFORCING

03 30 00.00 10 CAST-IN-PLACE CONCRETE

03 39 00.00 10 CONCRETE CURING

03 62 16 NON-SHRINK GROUTING

DIVISION 04 - MASONRY

04 20 00 UNIT MASONRY

DIVISION 05 - METALS

05 30 00 STEEL DECKS

05 50 13 MISCELLANEOUS METAL FABRICATIONS

05 51 00 METAL STAIRS

05 52 00 METAL RAILINGS

PROJECT TABLE OF CONTENTS Page 2

DIVISION 07 - THERMAL AND MOISTURE PROTECTION

07 17 00 BENTONITE WATERPROOFING

07 21 13 INSULATION AND VAPOR RETARDERS

07 32 13 ROOF TILES

07 52 00 MODIFIED BITUMINOUS MEMBRANE ROOFING

07 60 00 FLASHING AND SHEET METAL

07 84 00 FIRESTOPPING

07 92 00 JOINT SEALANTS

DIVISION 08 - OPENINGS

08 11 13 STEEL DOORS AND FRAMES

08 11 16 ALUMINUM DOORS AND FRAMES

08 51 13 ALUMINUM WINDOWS

08 71 00 DOOR HARDWARE

08 81 00 GLAZING

08 91 00 METAL WALL LOUVERS

DIVISION 09 - FINISHES

09 51 00 ACOUSTICAL CEILINGS AND METAL ACOUSTICAL PANEL SYSTEM

09 96 00 HIGH-PERFORMANCE COATINGS

DIVISION 10 - SPECIALTIES

10 14 00.20 INTERIOR SIGNAGE

10 44 16 FIRE EXTINGUISHERS

DIVISION 23 - HEATING, VENTILATING, AND AIR CONDITIONING (HVAC)

23 00 00 AIR SUPPLY, DISTRIBUTION, VENTILATION, AND EXHAUST SYSTEMS

23 05 93 TESTING, ADJUSTING, AND BALANCING FOR HVAC

23 07 00 THERMAL INSULATION FOR MECHANICAL SYSTEMS

23 23 00 REFRIGERANT PIPING

23 82 02.00 10 UNITARY HEATING AND COOLING EQUIPMENT

DIVISION 25 – INTEGRATED AUTOMATION

25 05 11 CYBERSECURITY FOR FACILITY-RELATED CONTROL SYSTEMS

DIVISION 26 - ELECTRICAL

26 00 00 BASIC ELECTRICAL MATERIALS AND METHODS

26 08 00 APPARATUS INSPECTION AND TESTING

26 20 00 INTERIOR DISTRIBUTION SYSTEM

26 28 01.00 10 COORDINATED POWER SYSTEM PROTECTION

26 29 23 VARIABLE FREQUENCY DRIVE SYSTEMS UNDER 600 VOLTS

26 51 00 INTERIOR LIGHTING

DIVISION 27 - COMMUNICATIONS

27 21 10.00 40 FIBER OPTIC DATA TRANSMISSION SYSTEM

PROJECT TABLE OF CONTENTS Page 3

DIVISION 31 - EARTHWORK

31 10 00 CLEARING AND GRUBBING

31 23 16 EXCAVATION AND FILL

31 32 00 SOIL SURFACE EROSION CONTROL

31 38 00 GEOTEXTILES USED AS FILTER FABRICS

DIVISION 32 – EXTERIOR IMPROVEMENTS

32 12 17 BITUMINOUS PAVING

32 16 19 CONCRETE CURBS, GUTTERS AND SIDEWALKS

32 92 19 SEEDING

DIVISION 33 – UTILITIES

33 71 02 UNDERGROUND ELECTRICAL DISTRIBUTION

DIVISION 35 – WATERWAY AND MARINE CONSTRUCTION

35 20 16.27 STAINLESS STEEL FLUSH GATES AND CONTROL PANELS,

ISOLATION GATES AND WEIR GATES

DIVISION 40 - PROCESS INTEGRATION

40 05 13 PIPELINES, LIQUID PROCESS PIPING

SUPPLEMENTS:

VALVE SCHEDULES

PIPING SCHEDULE

40 95 00 PROCESS CONTROL

SUPPLEMENTS:

INPUT/OUTPUT LIST

INSTRUMENT LIST

INSTRUMENT SPECIFICATIONS

SEQUENCE OF CONTROL

DIVISION 41 - MATERIAL PROCESSING AND HANDLING EQUIPMENT

41 22 23.19 MONORAIL HOISTS

DIVISION 44 - POLLUTION AND WASTE CONTROL EQUIPMENT

44 42 56 PROCESS SERVICE SUBMERSIBLE PUMP SYSTEMS

-- End of Project Table of Contents --

SECTION 01 00 00

ADMINISTRATIVE REQUIREMENTS

PART 1 GENERAL

1.1 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. The following shall be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Photographs

Photographs and, as applicable, negatives showing construction progress.

SD-03 Product Data

Cost or Pricing Data

Proof of actual equipment costs.

Equipment Data

An itemized list of serial/model numbers and equipment installed by the Contractor under this contract.

SD-05 Design Data

Progress Schedule; G

A schedule that shows the manner in which the Contractor intends to prosecute the work.

SD-10 Operation and Maintenance Data

O and M Data; G

A list of proposed maintenance and instruction manuals that is mainly used for but not limited to customized equipment.

Commissioning Activity for HVAC; G

The Contractor shall provide a separate activity for commissioning. Commissioning shall start only after all HVAC related work has been completed and all HVAC O&M manuals have been submitted and approved by the Government.

SECTION 01 00 00 Page 1

1.2 PROGRESS SCHEDULING AND REPORTING (DEC 1998)

1.2.1 Practicable Progress Schedule

The Contractor shall, within 20 days after date of commencement of work or as otherwise determined by the Contracting Officer, submit for approval a practicable progress schedule in accordance with specification Section 01 32 01.00 10 PROJECT SCHEDULE showing the manner in which he intends to prosecute the work.

1.2.2 Software Package

The Contractor shall utilize an industry recognized QCS-W compatible scheduling software package to implement the requirements of Section 01 32 01.00 10 PROJECT SCHEDULE. The program and data must be IBM PC compatible in a Windows environment. These requirements are not intended to restrict the Contractors selection of an automated scheduling system but to establish a format which will allow use of the same program with government computers and automated information systems. The Contractor will provide at least one program installation and maintenance on government hardware complete with all program and data files. Such installation shall be maintained for the duration of the project until fiscal completion and shall allow analysis and of the project schedule by government personnel or agents. The Contractor will be required to submit a submittal register, transmittal log and schedule that is compatible with the Corps of Engineers Quality Control System for Windows (QCS-W). The submittal register can be made available by the Corps of Engineers.

1.2.3 Preparation of Operation and Maintenance (O&M) Manuals

The Contractor shall provide a separate activity for the preparation and submission of all O&M manuals.

1.2.4 Commissioning Activity for HVAC

The Contractor shall provide a separate activity for commissioning of the HVAC system. The activity shall be as a minimum 30 days long.

Commissioning shall start only after all HVAC related work has been completed and all HVAC O&M manuals have been submitted and approved by the Government.

1.2.5 Additional Commissioning Requirements

Provide separate activities for commissioning of systems shown below.

Each activity shall be as a minimum duration as shown below.

a. Electrical Interior 30 days in Duration.

1.3 PAYMENTS TO CONTRACTORS: (NOV 1976)

For payment purposes only, an allowance will be made by the Contracting Officer of 100 percent of the invoiced cost of materials or equipment delivered to the site but not incorporated into the construction, pursuant to the Contract Clause entitled "PAYMENTS UNDER FIXED-PRICE CONSTRUCTION CONTRACTS". The Contracting Officer may also, at his discretion, take into consideration the cost of materials or equipment stored at locations other than the jobsite, when making progress payments under the contract.

In order to be eligible for payment, the Contractor must provide satisfactory evidence that he has acquired title to such material or

SECTION 01 00 00 Page 2 equipment, and that it will be utilized on the work covered by this contract. Further, all items must be properly stored and protected.

Earnings will be computed using 100% of invoiced value. (CENAB-CO-E)

1.4 IDENTIFICATION OF EMPLOYEES: (OCT 1983)

Each employee assigned to this project by the Contractor and subcontractors shall be required to display at all times, while on the project site, an approved form of identification provided by the Contractor, as an authorized employee of the Contractor/subcontractor. In addition, on those projects where identification is prescribed and furnished by the Government, it shall be displayed as required and it shall immediately be returned to the Contracting Officer for cancellation upon release of the assigned employee and or completion of project.

(CENAB)

1.5 PURCHASE ORDER: (SEP 1975)

One readable copy of all purchase orders for material and equipment, showing firm names and addresses, and all shipping bills, or memoranda of shipment received regarding such material and equipment, shall be furnished the appointed Contracting Officer's Representative as soon as issued. Such orders, shipping bills or memoranda shall be so worded or marked that all material and each item, piece or member of equipment can be definitely identified on the drawings. Where a priority rating is assigned to a contract, this rating, the required delivery date, and the scheduled shipping date shall also be shown on the purchase order. At the option of the Contractor, the copy of the purchase order may or may not indicate the purchase price. (CENAB-CO-E)

1.6 EQUIPMENT OWNERSHIP AND OPERATING EXPENSE SCHEDULE (EFARS 52.0231.5000

(OCT 1995))

a. This clause does not apply to terminations. See 52.249-5000, Basis for settlement of proposals and FAR Part 49.

b. Allowable cost for construction and equipment in sound workable conditions owned or controlled and furnished by a contractor or subcontractor at any tier shall be based on actual costs data for each piece of equipment or groups of similar serial and services for which the government can determine both ownership and operating costs from the contractor’s accounting records. When both ownership and operating costs cannot be determined for any piece of equipment or groups of similar serial or series equipment from the contractor’s accounting records, costs for that equipment shall be based upon the applicable provisions of EP1110-1-8 Construction Equipment Ownership and Operating Expenses Schedule, Region East. Working conditions shall be considered to be average for determining equipment rates using the schedule unless specified otherwise by the contracting officer. For equipment not included in the schedule, rates for comparable pieces of equipment may be used or a rate may be developed using the formula provided in the schedule. For forward pricing, the schedule in effect at the time of negotiations shall apply. For retroactive pricing, the schedule in effect at the time the work was performed shall apply.

c. Equipment rental costs are allowable, subject to the provisions of FAR 31.105(d) (ii) and Far 31.205-36. Rates for equipment rented from an organization under common control, lease-purchase arrangements, and

SECTION 01 00 00 Page 3 sale-leaseback arrangements, will be determined using the schedule, except that actual rates will be used for equipment leased from an organization under common control that has an established proactive of leasing the same or similar equipment to unaffiliated leasees.

d. When actual equipment costs are proposed and the total amount of the pricing action exceeds the small purchase threshold, the contracting officer shall request the contractor to submit either certified cost or pricing data, or partial/limited data, as appropriate. The data shall be submitted on Standard Form 1411, Contract Pricing Proposal Cover Sheet. CENAB-CT/SEP 95 (EFARS 52.231-5000)

1.7 REAL PROPERTY EQUIPMENT DATA: (APR 1975)

At or before the time of completion of the contract, the Contractor shall submit to the Contracting Officer a complete itemized list, including serial and model number where applicable, showing the unit retail value of each Contractor furnished item of mechanical, electrical and plumbing equipment installed by the Contractor under this contract. For each of the items which is specified herein to be guaranteed for a specified period from the date of acceptance thereof, either for beneficial use or final acceptance, whichever is earlier, against defective materials, design, and workmanship, the following information shall be given: the name, address and telephone number of the Subcontractor, Equipment Supplier, or Manufacturer originating the guaranteed item. The list shall be accompanied by a copy of the specific guarantee document for each item which is specified herein to be guaranteed if one had been furnished to the Contractor by the Equipment Supplier or Manufacturer. The Contractor's guarantee to the Government of these items will not be limited by the terms of any manufacturer's guarantee to the Contractor.

Baltimore District NADB Form 1019 may be utilized for the itemized listing and will be made available to the Contractor upon request. (CENAB-CO-E)

1.8 O and M DATA: (JUL 1979)

The requirements for furnishing operating and maintenance data and field instruction are specified elsewhere in the specifications. The Contractor shall submit to the Contracting Officer, at a time prior to the 50% project completion time, a list of proposed maintenance and instruction manuals to be furnished the Government and the scheduled dates of all required field instructions to be provided by Contractor furnished personnel or manufacturer's representatives. All maintenance and instruction manuals must be furnished to the Contracting Officer at least 2 weeks prior to the scheduled dates of any required Contractor furnished field instructions or at least one month prior to project completion if no Contractor furnished field instructions are required. (CENAB)

1.9 HOT-WORK PERMIT

A Washington Aqueduct hot-work permit, DA Form 5383-R (copy attached to the end of this section), must be submitted to the Contracting Officer before using heat-producing equipment.

1.10 NEGOTIATED MODIFICATIONS: (OCT 84)

Whenever profit is negotiated as an element of price for any modification to this contract with either prime or subcontractor, a reasonable profit shall be negotiated or determined by using the OCE Weighted Guidelines method outlined in EFARS 15.902. (Sugg. NAB 84-232)

SECTION 01 00 00 Page 4

1.11 PHOTOGRAPHS

PHOTOGRAPHIC COVERAGE: (SEP 85). The Contractor shall provide photographic coverage under the contract. These services shall be for 20 commercial grade color photographs every 2 months from the beginning of the contract until acceptance of the completed work. These photographs shall be in 8-inch by 10-inch size and shall be taken at intervals and at the place designated by the Contracting Officer. Alternatively, JPEG digital photo files can be provided for all of the above photographs (minimum 2.0 megabyte in size each) to and become the property of the Government. (CENAB-CO)

1.12 PERMITS

The permits listed below have been obtained by the Government or are in the approval process and may require additional action by the Contractor to become complete. After final approvals by the respective state agencies are received, the Government will furnish approval letters and permits to the Contracting Officer who will furnish the Contractor all such permits before or during construction. The Contractor shall abide by all permit requirements.

a. Erosion and Sedimentation (E&S) Control Plan: The E&S control plans were submitted to the District of Columbia Department of the Environment. Permit number is: XXXXX.

b. Environmental Assessment: Public review completed without comment.

FONSI in preparation.

PART 2 PRODUCTS

Not used.

PART 3 EXECUTION

Not used.

-- End of Section --

SECTION 01 00 00 Page 5

June 1999

Dalecarlia Water Treatment Plant Risk Management Program / 11-1

Section 11 Hot Work Permit Date: June 1999 Washington Aqueduct Division

Risk Management Program

Introduction

The purpose of this section is to describe a consistent control mechanism to prevent fires from welding, cutting, drilling, grinding, soldering, brazing, explosive actuated tool use, hot tar operations, hot plate use, and open burning activities. In order to comply with 40 CFR 68.85, a permit is issued for hot work operations conducted on or near a covered process. This permit documents that the fire prevention and protection requirements in OSHA regulations, 29 CFR 1910.252 (a), have been implemented prior to commencing the hot work operations.

Permit Procedure

A hot work permit request form, Form K-1 included in Appendix K, must be completed by Dalecarlia WTP personnel or outside contractors for any hot work to be performed on or near hazardous material/chemical process and facilities as follows:

• Work on tanks, containers, piping feed systems, or ancillary equipment containing chemicals or fuels.

• Work in chlorine facility rooms or on any part of the nondiluted chlorine system.

• Work within 25 feet of any flammable/combustible material with NFPA fire rating of 2 or greater.

• Wherever confined space entry testing indicates a hazardous atmosphere.

• Wherever a “Hot Work Permit Required” sign is posted.

• Work, where in the Foreman’s judgement that ignition/explosion of chemicals could occur from sparks, hot slag, etc.

The work site Foreman and the WA Safety and Occupational Health Program Manager or WA Project Engineer will review the proposed task and provide authorization that hot work is required. A hot work permit is then issued to the designated maintenance staff or contractor. This permit documents that appropriate fire prevention and protection requirements have been implemented prior to beginning hot work, the object(s) upon which hot work will be performed have been identified, and the dates for this work have been authorized.

The maintenance staff reviews all appropriate safety precautions to be taken prior to performing the hot work with the work site Foreman, including lockout/tagout, respiratory protection, use of personal protective equipment, etc.

When contractors perform work on WA property and lines, the maintenance staff will point out to the contractors where hot work permit procedures are required.

Section 11 Hot Work Permit

Dalecarlia Water Treatment Plant Risk Management Program / 11-2

Normally, hot work permits expire once each individual task is completed and at the end of the work day. A new permit is completed and issued at the beginning of each work day. However, extended contracts may be issued based on work/tasks to be performed.

After the designated maintenance mechanic or contractor completes items 1 through 6 of the Hot Work Permit Request form, the form must be submitted to the work site Foreman for review and signature of approval. The Foreman then passes the form to the WA Safety and Occupational Health Program Manager and/or WA Project Engineer for review and signature of approval. If the work is to be performed in a confined or poorly ventilated space, the Hot Work Permit Request form must be accompanied by a Confined Space Certificate (when applicable) issued and signed by a Confined Space Technician who has performed all tests and procedures required by the Confined Space Entry Program. The approved Hot Work Permit Request form becomes the hot work permit.

One copy of the hot work permit form is assigned to the maintenance staff or contractor who displays it at the work site until all hot work operations are finished. A second copy of the form remains in the hot work permit issuance book maintained by the WA Safety and Occupational Health Program Manager.

Upon completion, the maintenance staff performs any necessary unlocking/untagging, testing, or other activities necessary to return equipment to service and will notify the work site Foreman that operations may return to normal.

Section 11 Hot Work Permit

Dalecarlia Water Treatment Plant Risk Management Program / i

USACE, WASHINGTON AQUEDUCT

HOT WORK PERMIT REQUEST

CENAB-WA (385) DATE: ___________

Request for Approval of Hot Work

1. Requesting authority: ____________________________________

2. Date work to be performed: _______________________________

3. Location: ________________________ Time: _______________

4. Description of work: _____________________________________________

5. Required safety equipment or procedure:

Fire Extinguisher...................................................................... Yes ( ) No ( ) Fire Blankets ............................................................................ Yes ( ) No ( ) Forced Ventilation ................................................................... Yes ( ) No ( ) Confined Space Certification................................................... Yes ( ) No ( ) Fire Watch................................................................................ Yes ( ) No ( ) Emergency Communications ................................................... Yes ( ) No ( ) First Aid and/or CPR Training................................................. Yes ( ) No ( ) Lockout/Tagout........................................................................ Yes ( ) No ( ) Welding Screens ...................................................................... Yes ( ) No ( ) Removal/Protection of Combustibles ...................................... Yes ( ) No ( ) Removal/Protection of Flammables......................................... Yes ( ) No ( ) Personnel Protective Apparel

Gloves............................................................................... Yes ( ) No ( ) Eye Protection .................................................................. Yes ( ) No ( ) Hearing Protection............................................................ Yes ( ) No ( ) Safety Shoes ..................................................................... Yes ( ) No ( ) Respirators........................................................................ Yes ( ) No ( )

Area Barricades........................................................................ Yes ( ) No ( ) Other: ____________________________________________________________

6. Type of Hot Work:

( ) Electric Welding/Cutting ( ) Gas Welding/Cutting ( ) Tar Pots ( ) Open Fires ( ) Power Tools ( ) Other

FOREMAN REVIEW AND APPROVAL:

Signature: _________________________ Date: _______________ Section/Unit: _______________________

SAFETY AND OCCUPATIONAL HEALTH PROGRAM MANAGER REVIEW

AND APPROVAL:

Signature: _________________________ Date: _______________ Branch: ___________________________

This Hot Work Permit Expires at: Time: ___________ Date: ___________

“COPY OF THIS PERMIT IS TO BE POSTED IN THE EFFECTED AREA”

HOT-WORK PERMIT

For use of this form, see AR 420-90; the proponent agency is ACSIM

24. REMARKS

NOTE: PERMIT VALID ON DAY OF OPERATION AT ONE LOCATION ONLY

19.a. Was Fire Department notified after hot-work operation was completed?

19.b. Time:

DA FORM 5383-R, SEP 92 USAPPC V1.00

1. LOCATION 2. DATE 3. PERMIT NO.

4. TYPE OF WORK 5. START TIME 6. FINISH TIME

7.a. NAME OF PERSON RESPONSIBLE FOR HOT-WORK AT JOB SITE (Contractor/Government Employee)

7.b. SIGNATURE

PRECAUTIONS BEFORE OPERATIONS

CHECKLIST

CHECK ONE

YES NO

8. Did Fire Department Inspector inspect site?

9. Are there procedures for Fire Department emergency notification? (Emergency No.)

10. Are combustibles in area noted?

11. Should combustibles be covered? (If yes, note in remarks)

12. Are proper extinguishers on hand?

18.a. FIRE DEPARTMENT INSPECTOR'S SIGNATURE 18.b. DATE

PRECAUTIONS AFTER OPERATIONS

CHECKLIST

CHECK ONE

YES NO

13. Is wet-down necessary? (If yes, note in remarks)

14. Is smoking permissible at work sites?

15. Is continuous fire watch required?

16. Is Fire Department standby required?

17. Are other precautions required? (If yes, note in remarks)

20.a. Did Fire Department inspector inspect work site?

20.b. Time:

21. Are after work conditions safe? (If no, note in remarks)

23.a. FIRE DEPARTMENT INSPECTOR'S SIGNATURE 23.b. DATE

22. Are heat producing devices safe if left at work site?

EDITION OF JAN 85 IS OBSOLETE

SECTION 01 05 00

JOB CONDITIONS

PART 1 GENERAL

1.1 LAYOUT OF WORK

ALTERNATE 1: CIVIL WORK PROJECTS

LAYOUT OF WORK: (APR 1965 OCE)

The Government has established a bench mark at the site of the work. It is shown on the drawings. From this bench mark and locating dimensions shown on the drawings, the Contractor shall lay out the work by establishing all lines and grades at the site necessary to control the work and shall be responsible for all measurements that may be required for the execution of the work to the location and limit marks prescribed in the specifications or on the contract drawings. The Contractor shall establish and maintain at the site of the work as a minimum requisite the following horizontal and vertical controls:

The above are minimum requirements and the Contractor shall place and establish such additional stakes and markers as may be necessary for control and guidance of his construction operations. All survey data shall be recorded in accordance with standard and approved methods. All field notes, sketches, recordings and computations made by the Contractor in establishing above horizontal and vertical control points shall be available at all times during the progress of the work for ready examination by the Contracting Officer or his duly authorized representative.

The Contractor shall furnish, at his own expense, all such stakes, spikes, steel pins, templates, platforms, equipment tools and material and all labor as may be required in laying out any part of the work from the control points established by the Government. It shall be the responsibility of the Contractor to maintain and preserve all stakes and other markers established by him until authorized to remove them. If any of the control points established at the site by the Government are destroyed by or through the negligence of the Contractor prior to their authorized removal, they may be replaced by the Contracting Officer, and the expense of replacement will be deducted from any amount due or which may become due the Contractor. The Contracting Officer may require that work be suspended at any time when horizontal and vertical control points established at the site by the Contractor are not reasonably adequate to permit checking the work. Such suspension will be withdrawn upon proper replacement of the control points. (ECI 7-672.2)

1.2 PHYSICAL DATA: (APR 1984)

Data and information furnished or referred to below is for the Contractor's information. The Government shall not be responsible for any interpretation or conclusion drawn from the data or information by the Contractor. (CENAB)

SECTION 01 05 00 Page 1

1.2.1 Transportation Facilities

McMILLAN RESERVOIR, WASH.D.C.

McMillan Reservoir facility is located at 2500 1st Street NW, Washington, D.C., and is served by public transportation.

1.2.2 Explorations

The physical conditions indicated on the drawings and in the specifications are the result of site investigations by surveys, borings, and test pits. Measured and interpreted parameters obtained from these in-situ tests are included in the Final Geotechnical Report. Foundation exploration logs are shown on the drawings. The exploration logs presented represent the best subsurface information available; however, variations may exist in the subsurface between samples and between boring locations and will vary with time and season. The final Geotechnical Report is available for inspection by contacting the Point of Contact listed for inquiries in the Solicitation. Bidders shall allow 7 business days for the report to be provided. Portions of the geotechnical report other than the boring logs, in-situ testing results (measured parameters only), and laboratory testing data are interpretive, are provided as background information only, and shall not be used as a basis for bid or construction.

1.2.3 Previous Exploration

In addition to the exploration information shown on the drawings, other borings were made at this site. The location of these and the field laboratory data for all exploration are available for inspection in the Office of the District Engineer, U.S. Army Engineer District, Baltimore, Corps of Engineers, 2 Hopkins Plaza, Baltimore, Maryland 21201.

1.3 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. The following shall be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Shut Down Utility Services; G

Prior approval for service/utility interruptions.

Advance Notice

When changes and/or relocations are required.

Checklist; G

A Risk Assessment for excavation and other work in the vicinity of utilities.

Maintenance of Access

Interruption of railroad traffic.

SECTION 01 05 00 Page 2

SD-05 Design Data

Survey Data; G

The establishing of bench marks and horizontal control points.

1.4 UTILITIES

1.4.1 Availability of Utilities Including Lavatory Facilities: (JUN 1980)

It shall be the responsibility of the Contractor to provide all utilities he may require during the entire life of the contract. Contractor shall make their own investigation and determinations as to the availability and adequacy of utilities for their use for construction purposes and domestic consumption. Contractor shall install and maintain all necessary supply lines, connections, piping, and meters if required, but only at such locations and in such manner as approved by the Contracting Officer.

Before final acceptance of work under this contract, all temporary supply lines, connections and piping installed by the Contractor shall be removed by him in a manner satisfactory to the Contracting Officer. (CENAB)

1.4.2 Interruption of Utilities: (1972)

a. No utility services shall be interrupted by the Contractor to make connections, to relocate, or for any purpose without approval of the Contracting Officer or designated Washington Aqueduct personnel.

b. Request for permission to shut down utility services shall be submitted in writing to designated Washington Aqueduct personnel not less than 17 days prior to proposed date of interruption. The request shall give the following information:

1. Nature of utility (gas, L.P. or H.P., water, etc.).

2. Size of line and location of shutoff.

3. Buildings and services affected.

4. Hours and date of shutoff.

5. Estimated length of time service will be interrupted.

c. Services will not be shut off until receipt of approval of the proposed hours and date from the designated Washington Aqueduct personnel.

d. Shutoffs which will cause interruption of Government work operations as determined by the Contracting Officer or designated Washington Aqueduct personnel shall be accomplished during regular non-work hours or on non-work days of the Using Agency without any additional cost to the Government.

e. Operation of valves on water mains will be by Government personnel.

Where shutoff of water lines interrupts service to fire hydrants or fire sprinkler systems, the Contractor shall arrange his operations and have sufficient material and personnel available to complete the work without undue delay or to restore service without delay in event of emergency.

SECTION 01 05 00 Page 3

f. Flow in gas mains which have been shut off shall not be restored until the Government inspector has determined that all items serviced by the gas line have been shut off. (CENAB)

1.4.3 Alterations to Utilities: (AUG 1968)

Where changes and relocations of utility lines are noted to be performed by others, the Contractor shall give the Contracting Officer or designated Washington Aqueduct personnel in writing advance notice at least 30 days of the time that the change or relocation is required. In the event that, after the expiration of 30 days after the receipt of such notice by the Contracting Officer or designated Washington Aqueduct personnel, such utility lines have not been changed or relocated and delay is occasioned to the completion of the work under this contract, the Contractor will be entitled to a time extension equal to the period of time lost by the Contractor after the expiration of said 30-day period. Any modification to existing or relocated lines required as a result of the Contractor's method of operation shall be made wholly at the Contractor's expense and no additional time will be allowed for delays incurred by such modifications. (CENAB)

1.4.4 Utility Markings

The Contractor shall contact Washington Aqueduct and the One-Call Service, a minimum of 14 days and 48 hours, respectively, prior to any excavation requesting utility location markings. The Contractor shall not proceed with any excavation until all utilities, including abandoned utilities, have been marked to the satisfaction of the Contracting Officer. Prior to requesting the marking of utilities, the Contractor shall stake out proposed excavations and limits of work with white lines ("White Lining"). It is the Contractor's responsibility to ensure that all permits (excavation or otherwise, including any required Washington Aqueduct permits) are current and up-to-date without expiration. In addition to the above requirements the Contractor shall:

a. Visually survey and verify that all utility markings are consistent with existing appurtenances such as manholes, valve boxes, poles, pedestals, pad-mounted devices, gas meters, etc. prior to any excavation.

b. Hand dig test holes to verify the depth and location of all utilities prior to any mechanical excavation within the limits of work. Other non-damaging methods for utility verification, as indicated in (d) below, may be considered subject to approval by the Contracting Officer. Also, verify that any abandoned utilities are not active.

c. Preserve all utility markings for the duration of the project to the furthest extent possible.

d. When excavation is performed within 2 feet of any utility line, a non-damaging method of excavation shall be used. The non-damaging method shall be hand digging. Other non-damaging methods, such as, soft digging, vacuum excavation, pneumatic hand tools, may be considered subject to approval by the Contracting Officer.

e. Regardless of the type of excavation, the Contractor shall notify the Contracting Officer or designated Washington Aqueduct personnel a minimum of 72 hours prior to any excavation activity. Failure to

SECTION 01 05 00 Page 4 notify the Contracting Officer or designated Washington Aqueduct personnel can result in the issuance of a "Stop Work" order, which shall not be justification for contract delay or time extension. The Government reserves the right to have personnel present on site during any type of excavation.

f. The Contractor's Quality Control System Manager shall ensure that all excavation requirements herein are met at the time of the preparatory phase of quality control, and that the excavation procedures are reviewed during the preparatory phase meeting. This preparatory phase of control shall also establish and document contingency plans and actions to be followed in the event that existing utilities are damaged or interrupted. Locations of shut off or isolation devices along with other safety features shall be established and their operation reviewed.

g. Any work other than excavation in the vicinity of a utility, that could damage or interrupt a utility, such as, exterior or interior work near transformers, power lines, poles, aboveground gas lines, gas meters, water lines, etc., shall be done with extreme care. The Contractor shall specifically note during the preparatory phase of quality control, the construction techniques to be used to preclude damaging or interrupting any utility. This preparatory phase of control shall also establish and document contingency plans and actions to be followed in the event that existing utilities are damaged or interrupted. Locations of shut off or isolation devices along with other safety features shall be established and their operation reviewed.

h. The Contractor shall complete a risk assessment, using the attached checklist, at least 1 week prior to the start of any excavation or other work in the vicinity of a utility. The risk assessment shall be submitted for government approval prior to any excavation or other work in the vicinity of a utility. A risk assessment shall be completed for each definable feature of work encountering utilities and shall include all utilities anticipated to be encountered.

1.5 DISPOSAL OF EXISTING MATERIAL AND EQUIPMENT: (DEC 1975)

All removed, dismantled or demolished material and/or equipment including rubble, scrap and debris not specified or indicated to be Government salvaged, reinstalled under this contract or otherwise retained for disposal on Government land will become the property of the Contractor and shall be promptly removed from the site and disposed of by the Contractor at his own expense and responsibility. (CENAB)

1.6 MAINTENANCE OF ACCESS: (DEC 1975)

The Contractor shall not block passage through sidewalks, roads, alleys or other entranceways to the building during performance of work under this contract except where permitted on the drawings. In addition, the Contractor shall at all times maintain safe and clear passage through interior corridors and doorways to allow minimal disruption of normal activities within the building. No equipment or new materials are to be stored in the building except those items that are necessary for progress of the immediate work. All existing equipment, materials and debris removed during the work that are not to be reinstalled shall be removed daily by the Contractor from the building. (CENAB)

SECTION 01 05 00 Page 5

1.7 PROTECTION OF GOVERNMENT PROPERTY AND PERSONNEL: (DEC 1975)

1.7.1 Protection of Equipment

All existing Government owned equipment within the work area shall be protected by the Contractor from damage caused by construction operations. As a minimum, the Contractor shall cover all furniture, equipment and carpets in the work area with dust barriers and protect such items from any damage due to dust, vibration, water, heat or other conditions resulting from construction activities. Existing work damaged by construction operations shall be promptly repaired by the Contractor at his own expense.

1.7.2 Protection of Personnel

The Contractor shall protect occupants of the building by installing safety rails and/or barricades as applicable to prevent injury from unauthorized entry of personnel into work areas. Warning signs shall be erected as necessary to indicate Construction areas or hazardous zones.

Work shall proceed in such manner as to prevent the undue spread of dust and flying particles.

1.7.3 Measures to Prevent Damage/Injury

The Contractor shall take such additional measures as may be directed by the Contracting Officer to prevent damage or injury to Government property or personnel. (CENAB)

1.7.4 Cyber Security Requirements Related to Programming Programmable Logic Controllers (PLCs) for this Project

Refer to Section 40 95 00 PROCESS CONTROL, and Section 25 05 11 CYBERSECURITY FOR FACILITY-RELATED CONTROL SYSTEMS, for special cyber security requirements related to programming of PLCs or similar devices that apply to this project. These requirements impact how and where programming shall be performed.

1.8 STREET CLOSINGS: (MAY 1978)

When operations in connection with contract work necessitate the closing of streets, it shall be the Contractor's responsibility to arrange in advance with the Contracting Officer for such street closings and to provide appropriate barricades, signs, markers, flares, and other devices as may be required by the Contracting Officer's Representative for traffic guides and public safety. (CENAB)

1.9 ORDER OF WORK AND COORDINATION WITH OTHER CONTRACTORS: (FEB 1979)

Other contractors are presently working in the same area. After award of this contract a meeting will be held with all contractor representatives and the Contracting Officer to develop a plan of work coordination. In case of disagreement regarding use of an area the decision of the Contracting Officer will control. (CENAB)

1.10 MAINTENANCE OF UTILITIES: (FEB 1985)

Throughout construction, the Contractor shall provide and/or maintain toilet facilities for Government personnel. The Contractor shall provide alternate space heating for Government personnel when necessary during

SECTION 01 05 00 Page 6 shutdown of the heating system. (CENAB)

1.11 ASBESTOS HANDLING AND REMOVAL: (FEB 85)

Through site investigations, friable asbestos has not been found, however if asbestos is encountered, its testing, removal and disposal is covered in "CHANGES" clause of the Contract Clauses. (CENAB)

1.12 TIME EXTENSIONS FOR UNUSUALLY SEVERE WEATHER

1.12.1 Procedure for Determination

This provision specifies the procedure for determination of time extensions for unusually severe weather in accordance the contract clause entitled "Default: (Fixed Price Construction)". In order for the Contracting Officer to award a time extension under this clause, the following conditions must be satisfied:

a. The weather experienced at the project site during the contract period must be found to be unusually severe, that is, more severe than the adverse weather anticipated for the project location during any given month.

b. The unusually severe weather must actually cause a delay to the completion of the project. The delay must be beyond the control and without the fault or negligence of the Contractor.

1.12.2 Anticipated Adverse Weather Delays

The following schedule of monthly anticipated adverse weather delays is based on National Oceanic and Atmospheric Administration (NOAA) or similar data for the project location and will constitute the base line for monthly weather time evaluations. The Contractor's progress schedule must reflect these anticipated adverse weather delays in all weather-dependent activities.

MONTHLY ANTICIPATED ADVERSE WEATHER DELAY

WORK DAYS BASED ON (5)-DAY WORK WEEK

a. Washington Aqueduct Division (WAD), Little Falls Pumping Station, Washington, D.C.

JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

4 5 6 7 6 6 6 5 2 5 4 3

1.12.3 Impact

Upon acknowledgment of the Notice to Proceed (NTP) and continuing throughout the contract, the contractor will record on the daily CQC report, the occurrence of adverse weather and resultant impact to normally scheduled work. Actual adverse weather delay days must prevent work on critical activities for 50 percent or more of the contractor's scheduled work day. The number of actual adverse weather delay days shall include days impacted by actual adverse weather (even if adverse weather occurred in previous month), be calculated chronologically from the first to the last day of each month and be recorded as full days. If the number of actual adverse weather delay days exceeds the number of days anticipated in paragraph "Anticipated Adverse Weather Delays", above, the Contracting Officer will convert any qualifying delays to calendar days, giving full

SECTION 01 05 00 Page 7 consideration for equivalent fair weather work days, and issue a contract modification.

1.13 WORKING HOURS

Regular working hours shall consist of an 8-1/2-hour period established by the Contractor Officer, between 7 a.m. and 3:30 p.m., Monday through Friday, excluding Government holidays.

1.13.1 Work Outside Regular Hours

Work outside regular working hours requires Contracting Officer approval.

Make application 15 calendar days prior to such work to allow arrangements to be made by the Government for inspecting the work in progress, giving the specific dates, hours, location, type of work to be performed, contract number and project title. Based on the justification provided, the Contracting Officer may approve work outside regular hours. During periods of darkness, the different parts of the work shall be lighted in a manner approved by the Contracting Officer.

1.13.2 Utility Cutovers and Interruptions

a. Make utility cutovers and interruptions during normal working hours.

b. Ensure that new utility lines are complete, except for the connection, before interrupting existing service.

c. Interruption to water, sanitary sewer, storm sewer, telephone service, electric service, air conditioning, heating, fire alarm, compressed air, and water treatment processes shall be considered utility cutovers pursuant to the paragraph entitled "Work Outside Regular Hours." Such interruption shall be further limited to the hours defined for the interruption. This time limit incudes time for deactivation and reactivation.

d. Operation of Water Treatment Plant Utilities: The Contractor shall not operate nor disturb the setting of control devices in the McMillan Water Treatment Plant, including water, sewer, electrical, and steam services. The Government will operate the control devices as required for normal conduct of the work. The Contractor shall notify the Contracting Officer giving reasonable advance notice when such operation is required.

1.14 LIMITS OF WORK AREAS

The limits of work areas as shown on the drawings are necessarily approximate. In case of doubt as to the actual limits of any work area, determination as to the actual limits will be made by the Contracting Officer.

1.15 CONSTRUCTION SEQUENCING REQUIREMENTS

The following project components and construction activities are expected to impact the operation of the existing McMillan Water Treatment Plant.

This work shall be completed in conformance with the schedule and construction sequencing restrictions defined below.

SECTION 01 05 00 Page 8

1.15.1 Modifications to the Existing Filter Building Spent Washwater Channel

The work included under this project requires two types of modifications to the existing Filter Building spent washwater channel including a new opening in the channel on the south side of the existing filter building and the installation of a new weir gate at the existing point of discharge from the spent washwater channel to the existing mixing chamber.

Additional pipe connection modifications are also required to the existing mixing chamber as described below.

1.15.1.1 Cutting Hole in Spent Washwater Channel on South Side of the Filter Building and Installing Temporary Closure Plate

On the south side of the Filter Building, the Contractor is required to saw cut a new hole in the south wall of the channel (to allow waste backwash water to flow into the new backwash equalization basin) and install a new temporary gasketed steel closure plate. This work shall be completed during a single plant shutdown, of no more than 10 days in duration. This shutdown shall occur during the low demand season between 4 Jan 2021 and 30 April 2021. Work to be completed during the outage includes preparation and cutting the hole, removing associated construction debris and equipment and installing a temporary gasketed steel closure plate over the hole on the south face of the Filter Building. An additional 24 hours will be required for Washington Aqueduct personnel to drain the 12 existing filters to the top of the backwash troughs prior to allowing the Contractor to start this work. Note: It is anticipated that the existing filter valves controlling discharge into the spent washwater channel leak. This issue will be addressed by Washington Aqueduct staff by taking the plant out of service for the duration described above and lowering the water level in the filters as required.

Following construction of the new Backwash Waste Connection Conduit and the Backwash Equalization Basin and Backwash Equalization Pumping Station but prior to start-up of these facilities, the Contractor shall remove the temporary closure plate to place the new backwash equalization basin into service for testing. This schedule for this removal is dependent upon the construction schedule for the facilities listed above but will require a plant outage. This single outage shall be no longer than 1 day in duration and occur during late summer of 2021. Provide minimum 30-days advance notice to Washington Aqueduct to allow the schedule for this plant outage to be confirmed. This shutdown shall be coordinated with other tasks requiring a plant shutdown during this period to ensure that only one plant shutdown is required per year during this period

1.15.1.2 Installation of New 12-foot Wide Weir Gate at the Discharge from the Spent Washwater Channel (i.e., Inlet to the Filter Building Mixing Chamber) and Installation of New 24-inch Backwash Drain Pipe and 30-inch Settled Water Diversion Pipe through the Mixing Chamber Exterior Walls

The installation of the new weir gate at the inlet to the mixing chamber and backwash drain and settled water diversion pipes will also require a plant shut down. As discussed under article 1.15.1.1, it is anticipated that the existing filter gullet discharge valves may leak into the waste backwash channel while the plant is in operation. This issue will be addressed by Washington Aqueduct personnel taking the plant out of service and lowering the water level in the filters as required to prevent discharge to the waste backwash channel. The modifications required to install the new weir gate include the following steps:

SECTION 01 05 00 Page 9

a. Remove the existing east and west mixer drives and below-slab mixer impellor and shaft and saw cut a slot in the top slab of the east mixing chamber to permit the installation of the new weir gate, associated stainless steel anchor channel and concrete curb.

b. Install the new…