FP PH1 Cubicle Room 15kV Switchgear Specs_90percent_Submittal (DRAFT).pdf

Ft Peck PH1 Cubicle Room 15kV Switchgear Upgrade FTPPH115KVSWGR

SECTION 01 11 10.00 26

STATEMENT OF WORK

03/19/2021

PART 1 GENERAL

1.1 DESCRIPTION OF WORK

The scope of work consists of the Contractor furnishing all supervision, engineering, labor, materials, and equipment to perform the following work in strict accordance with the detailed requirements of this contract:

a. Remove and dispose of existing 15kV switchgear located in Powerhouse 1 Cubicle Room.

b. Remove and dispose of existing 15kV feeders, as shown on the contract drawings

c. Remove existing power, control and annunciation cables from the 15kV switchgear to the first point of termination in the powerhouse.

d. Remove and dispose of existing 15kV reactor connected to transformer KV7A (optional item) .

e. Remove and dispose of existing 15kV disconnect switch and aluminum bus system associated with the 15kV reactor .

e. Remove and dispose of existing cable trays in the cable tunnel.

f. Furnish and install new 15kV switchgear in Powerhouse 1 Cubicle Room

g. Furnish and install new 15kV outdoor substation vacuum breakers in the switchyard.

h. F urnish and install two new air core reactors.

i. Furnish and install 15kV aluminum bus system in the switchyard to include furnishing and installation of 15kV disconnect switches.

j . Furnish and install 15kV, 4000A bus connections between the 15kV switchgear in Cubicle Room to the 15kV outdoor substation vacuum breakers in the switchyard.

k. Furnish and install new 15kV feeders to the loads.

l . Furnish and install new power, control and annunciation cables to the installed equipment.

m. Furnish and install new cable trays.

n. Make modifications to the control board in the control room.

o. Test and commission equipment installed.

All equipment and materials must be onsite before outages will be authorized to enable demolition and removal of existing components.

SECTION 01 11 10.00 26 Page 1

DRAFT

PART 2 PRODUCTS - NOT USED

PART 3 EXECUTION - NOT USED

-- End of Section --

SECTION 01 11 10.00 26 Page 2

Section 01 22 00.00 26

MEASUREMENT AND PAYMENT PROCEDURES

08/15

PART 1 GENERAL

1.1 PAYMENT GENERAL

Payment items for the work of this contract for which payments will be made are listed in the BID SCHEDULE and described below. The contract price for each item shall constitute full compensation for furnishing all plant, labor, materials, appurtenances, and incidentals and performing all operations necessary to construct and complete the items in accordance with these specifications and the applicable drawings, including surveying performed by the Contractor

All costs for items of work, which are not specifically mentioned to be included in a particular payment item, shall be included in the listed job item most closely associated with the work involved. Payment for each item shall be considered as full compensation, notwithstanding that minor features may not be mentioned herein. Work paid for under one item will not be paid for under any other item. No separate payment will be made for the work, services, or operations required by the Contractor, as specified in DIVISION 01 - GENERAL REQUIREMENTS, to complete the project in accordance with these specifications; all costs thereof shall be considered as incidental to the work.

1.2 MEASUREMENT GUIDELINES

1.2.1 Job Items

Items measured as a "job" will be measured for payment as a complete job in the locations indicated. Unless the payment item paragraph makes a specific exception of any item, incidental items will not be measured under any other item even though there is another listing for the work or material.

1.3 BASE CLINs

1.3.1 Mobilization and Demobilization, CLIN 0001

Payment will be made on a per job basis under CLIN 0001. Payment shall be made for all costs incurred prior to arriving onsite (mobilization) or immediately after departing the work site (demobilization). These costs include, but are not limited to, all preparatory work at the contractors shop, labor costs associated with travel to and from the work site, and transportation costs.

1.3.2 Remove and Dispose of Existing 15kV Switchgear, CLIN 0002

Payment for the removal and disposal of the existing 15kV switchgear in Cubicle Room will be made at the job bid price under Line Item No.

0002. Price and payment will constitute full compensation for the furnishing of all material, labor, and equipment to accomplish this work.

SECTION 01 22 00.00 26 Page 1

1.3.3 Remove and Dispose of Existing 15kV Feeders, CLIN 0003

Payment for the removal and disposal of the existing 15kV feeders shall be made at the job bid price under Line Item No. 0003. Price and payment will constitute full compensation for the furnishing of all material, labor and equipment to accomplish this work.

1.3.4 Remove and Dispose of Existing Switchgear Control Cables , CLIN 0004

Payment for the removal and disposal of existing switchgear power, control and annunciation cables will be made at the job bid price under Line Item No. 0004. Price and payment will constitute full compensation for the furnishing of all materials, labor and equipment to accomplish this work.

1.3.5 Remove and Dispose of Existing 15kV Aluminum Bus, Structure, and Disconnect Switch, CLIN 0005

Payment for the removal and disposal of existing 15kV aluminum bus, structure and disconnect switch will be made at the job bid price under Line Item No. 0005. Price and payment will constitute full compensation for the furnishing of allmaterials, labor and equipment to accomplish this work.

1.3.6 Remove and Dispose of Existing Cable Trays, CLIN 0006

Payment for the removal and disposal of existing cable trays in the cable tunnel will be made at the job bid price under Line Item No. 0006. Price and payment will constitute full compensation for the furnishing of allmaterials, labor and equipment to accomplish this work.

1.3.7 Furnish and Install New 15kV Switchgear in the Cubicle Room , CLIN 000

Payment for the supply and installation of the 15kV switchgear equipment in Cubicle Room will be made at the job bid price under Line Item No. 000 7.

Price and payment will constitute full compensation for the furnishing of all materials, labor and equipment to accomplish this work.

1.3.8 Furnish and Install New 15kV Breakers in the Switchyard, CLIN 0008

Payment for furnishing and installation of the 15kV breakers in the switchyard will be made at the job bid price under Line Item No. 0008.

Price and payment will constitute full compensation for the furnishing of all materials, labor and equipment to accomplish this work.

1.3.9 Furnish and Install New 15kV Feeders, CLIN 000 9

Payment for furnishing and i nstallation of the 15kV feeders to the loads in the switchyard as well as the 15kV, 4000A connections between the 15kV equipment in Cubicle Room and 15kV equipment in the switchyard will be made at the job bid price under Line Item No. 000 9. Price and payment will constitute full compensation for the furnishing of all labor required to accomplish this work.

1.3.10 Furnish and Install New Switchgear Control Cables, CLIN 00 10

Payment for furnishing and installation of new switchgear power, control and annunciation cables from the 15kV switchgear in the Cubicle Room and from the 15kV breakers in the switchyard to the equipment in the control

SECTION 01 22 00.00 26 Page 2 room will be made at the job bid price under Line Item No. 00 10. Price and payment will constitute full compensation for the furnishing of all labor required to accomplish this work.

1.3.11 Furnish and Install New 15kV Reactors, CLIN 0011

Payment for furnishing and installation of new 15kV reactors in the switchyard will be made at the job bid price under Line Item No. 0011.

Price and payment will constitute full compensation for the furnishing of all materials, labor and equipment to accomplish this work.

1.3.12 Furnish and Install New Cable Trays, CLIN 0012

Payment for furnishing and installation of new cable trays in the tunnel will be made at the job bid price under Line Item No. 0012. Price and payment will constitute full compensation for the furnishing of all materials, labor and equipment to accomplish this work.

1.3.13 Furnish and Install New 15kV Aluminum Bus System, CLIN 0013

Payment for furnishing and installation of the 15kV aluminum bus system, to include the 15kV disconnect switches will be made at the job bid price under Line Item No. 0013. Price and payment will constitute full compensation for the furnishing of all materials, labor and equipment to accomplish this work.

1.3.14 Concrete Work in the Switchyard, CLIN 0014

Payment for removing existing concrete pads and footings as well as installation of concrete pads for the new equipment in the switchyard will be made at the job bid price under Line Item No. 0014. Price and payment will constitute full compensation for the furnishing of all materials, labor and equipment to accomplish this work.

1.3.15 All Spare Parts and Accessories, CLIN 0015

Payment for the supply of all spare parts and accessories will be made at the job bid price under Line Item No. 0015. Price and payment will constitute full compensation for the furnishing of all labor required to accomplish this work.

1.3.16 Provide As-Builts and O & M Manuals, CLIN 0016

Payment for the supply of the as-built drawings and O & M manuals will be made at the job bid price under Line Item No. 0016. Price and payment will constitute full compensation for the furnishing of all labor to accomplish this work.

1.3.17 System Testing and Commissioning , CLIN 0018

Payment for testing and commissiong serviceswill be made at the job bid price under Line Item No. 0018. Price and payment will constitute full compensation for the furnishing of all material, labor and equipment to perform this work.

1.3.18 Contractor Furnished Training of Government Personnel, CLIN 0019

Payment for the contractor furnished training of Government Personnel will be made at the job bid price under Line Item No. 0019. Price and payment

SECTION 01 22 00.00 26 Page 3 will constitute full compensation for the furnishing of all material and labor to perform this work.

1.4 OPTIONAL ITEMS

1.4.1 Remove Existing 15kV Reactor, CLIN 0019

Payment for the removal of existing 15kV reactor will be made under bid price under Line Item No. 0019. Price and payment will constitute full compensation for the furnishing of all material and labor to perform this work.

1.5 PROGRESS PAYMENT INVOICE

Submit requests for payment in accordance with Federal Acquisition Regulations (FAR) Subpart 32.9, entitled "PROMPT PAYMENT", and Clauses 52.232-5 and 52.232-27, entitled "Payments Under Fixed-Price Construction Contracts", and "Prompt Payment for Construction Contracts", respectively.

In addition each request shall be submitted in the number of copies and to the designated billing office as shown in the Contract.

When submitting payment requests, complete Blocks 1 through 12 of the "PROGRESS PAYMENT INVOICE" Form as directed by the Contracting Officer (provided in QCS). The completed form shall then become the cover document to which all other support data shall be attached.

One additional copy of the entire request for payment, to include the "PROGRESS PAYMENT INVOICE" cover document, shall be forwarded to a separate address as designated by the Contracting Officer.

Submit with each pay request, a list of subcontractors that have worked during that pay period. The listing shall be broken down into weeks, identifying each subcontractor that has worked during a particular week, and indicate the total number of employees that have worked on site for each subcontractor for each week. Also indicate the total number of employees for on-site staff for each week.

1.6 ELECTRONIC SOFTWARE SYSTEM FOR SUBMITTING CERTIFIED LABOR PAYROLLS AND

RECORDS

The Contractor is required to use a commercially available software system to process and submit certified payrolls electronically to the Government.

The requirements for preparing, processing, and submitting certified labor payrolls are established by the requirements as stated in FAR 52.222-8 PAYROLLS AND BASIC RECORDS, and FAR 52.222-13 COMPLIANCE WITH CONSTRUCTION

WAGE RATE REQUIREMENTS AND RELATED REGULATIONS.

Provide all access, licenses, and other services required for the receipt, processing, certifying, and electronically transmitting payrolls to the Government, and storing weekly payroll and other data required to comply with Construction Wage Rate Requirements and related regulations. The payroll software system shall be capable of preserving submitted payroll documents and related records for a minimum of three years after contract completion. Provide system access to the Government for the duration of this construction contract. Government access shall include online review by the Government's contract administration office of all electronic payroll records of the Contractor.

The payroll processing software system shall also meet the following

SECTION 01 22 00.00 26 Page 4 functional criteria. It shall:

a. Be compliant with appropriate Construction Wage Rate Requirement payroll provisions in applicable Federal Acquisition Regulations

b. Be able to accommodate the required number of employees and subcontractors employed under the contract,

c. Be capable of producing an MS Excel compatible spreadsheet to be uploaded into the Quality Control System (QCS), which in turn shall exported to the Resident Management System (RMS),

d. Provide demonstrated security of data storage, data entry, and data access rights,

e. Be able to produce Contractor certified electronic versions of weekly payroll data,

f. Be able to identify erroneous entries and track data/time of all versions of the Construction Wage Rate certified payrolls submitted to the Government over the life of the contract, and

g. Be capable of generating a durable record copy; that is, a CD or DVD of records in PDF format from the system database. This durable record copy shall be provided to the Government during contract closeout. All incurred costs related to the provision and use of an electronic payroll processing system shall be included in the price for the work under the contract. All costs for providing and using the electronic payroll processing system and services shall not be a separately billed or reimbursed item under the contract.

1.7 COMPLIANCE WITH CONSTRUCTION WAGE RATE REQUIREMENTS

1.7.1 Contractor POC

Within 14 days after award of the contract, designate a point of contact (POC) who will be responsible for the Construction Wage Rates Requirements Program for the Contractor and all subcontractors under this contract as required by the Contract Clauses and FAR 52.222.

1.7.2 Responsibilities

The designated Contractor POC shall be responsible for Construction Wage Rates Requirements Program activities including, but not limited to:

a. Documentation and record keeping;

b. Submittal and accuracy of certified payrolls;

c. Submittal of required labor forms including requests for additional classifications and rates, Statements and Acknowledgement, etc.;

d. Posting of the wage determination, approved additional classifications and rates, labor and EEO posters;

e. Coordination with the Contracting Officer's Labor Program POC.

Prior to submittal to the Government, payrolls shall be reviewed for compliance to all applicable labor standards, to include, but not be

SECTION 01 22 00.00 26 Page 5 limited to the following items: correct wage rates, correct overtime classification and pay, misclassification of workers for work actually performed, apprentice to journeyman ratios, and registration of apprentice. Corrective actions shall be taken as necessary to ensure Contractor compliance with applicable contract and FAR clauses.

1.7.3 Certification

The Contractor POC shall provide a signed certification stating the following: "I certify that the submitted items being forwarded have been reviewed in detail and are correct and in strict conformance with the Labor Standards of the contract except as otherwise stated."

1.8 PROPOSED PROJECT MODIFICATIONS

Price proposals for contract modifications shall be submitted in accordance with the requirements of the Contract Clause MODIFICATION PROPOSALS - PRICE BREAKDOWNS. If change order work impacts or delays other unchanged contract work, the costs of such impacts or delays shall be included in the proposals and separately identified. The current threshold for requiring cost or pricing data is $750,000 but is subject to change (see FAR 15.403-4(a)(1)(iii)). Any modification proposal that exceeds the cost and pricing data threshold shall meet the requirements of FAR 15.403 (see instructions for Change Orders/Modification and Claims in Table 15-2 of FAR 15.408)

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

Not Used

-- End of Section --

SECTION 01 22 00.00 26 Page 6

02 42 00.00 26

REMOVAL OF EXISTING SWITCHYARD INSULATING OIL SYSTEM PIPING

PART 1 GENERAL

1.1 GENERAL INFORMATION

The work covered by this section consists of general and mechanical requirements for furnishing all labor, equipment, and materials for the removal of the existing transformer and breaker oil drain/fill piping associated with the Fort Peck's 15kV Switchgear Installation.

1.2 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.

AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME)

ASME B16.22 (2018) Standard for Wrought Copper and Copper Alloy Solder Joint Pressure Fittings

ASME INTERNATIONAL (ASME)

ASME B16.3 (2011) Malleable Iron Threaded Fittings, Classes 150 and 300

1.3 SUBMITTALS

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

submittals not having a "G" designation are for Contractor Quality Control approval. The following shall be submitted in accordance with Section

01 33 00 SUBMITTAL PROCEDURES:

1.4 DESCRIPTION OF EXISTING SYSTEMS

1.4.1 Switchyard Insulating Oil Piping

The existing transformers can no longer be drained or filled via piping leading to the clean/used oil storage tanks in the oil storage room. This system is no longer used and the pipes are not filled with oil. Residual oil is anticipated at low points in the piping. The pipes penetrate the oil storage room wall, day light to the switchyard outside the fence, and run through a concrete trench to individual equipment.

1.5 DESCRIPTION OF DEMOLITION WORK

a. Remove all oil insulating drain and supply piping within areas of the cable trench as shown on the contract drawings.

b. Cap all abandoned piping no demolished .

SECTION 02 42 00.00 26 Page 1

PART 2 PRODUCTS

2.1 PIPE CAPS

Iron pipe caps shall be class 300 malleable iron conforming to ASME B16.3 .

Provide copper pipe caps which meet the requirements of ASME B16.22

PART 3 EXECUTION

3.1 GENERAL REQUIREMENTS

Care shall be taken to ensure that existing equipment in the powerhouse and switchyard is not disturbed during the removal of the insulating oil supply systems. Any damage to existing equipment or facilities is the responsibility of the Contractor and shall be repaired at the Contractor's expense. A demolition plan shall be provided by the Contractor showing key work sequences as indicated in 02 41 00.00 26 .

3.2 DEMOLITION WORK

3.2.1 Removal

3.2.2 Equipment Disposal and Salvage

All equipment and materials resulting from removal work shall become the property of the Contractor. All material, which becomes the property of the Contractor shall be removed from the site and shall be properly disposed of in accordance with the applicable Local, State and Federal regulations.

3.2.3 Repair of Existing Work

Any damage to building, piping, or equipment shall be repaired by skilled mechanics of the trades involved at no additional cost to the Government.

3.3 PIPE CAPPING

Pipe caps shall be installed per manufacturer's recommendations and applicable codes and shall form a tight seal preventing leakage.

-- End of Section --

SECTION 02 42 00.00 26 Page 2

SECTION 03 30 53.0 9 26

CAST-IN-PLACE CONCRETE AND FOUNDATIONS

05/14

PART 1 GENERAL

1.1 DESCRIPTION OF WORK

This Section covers requirements applicable to the mix design, placement, and inspection of the outdoor switchgear and switchyard bus support structure foundations cast-in-place concrete. These requirements are in addition to those contained in the Specification sections covering the specific items of work or as shown.

1.2 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.

AMERICAN CONCRETE INSTITUTE INTERNATIONAL (ACI)

ACI 117 (2010; Errata 2011) Specifications for Tolerances for Concrete Construction and Materials and Commentary

ACI 301 (2010; ERTA 2015) Specifications for Structural Concrete

ACI 304R (2000; R 2009) Guide for Measuring, Mixing, Transporting, and Placing Concrete

ACI 318 (2014; Errata 1-2 2014; Errata 3-5 2015;

Errata 6 2016; Errata 7 2017) Building Code Requirements for Structural Concrete and Commentary

ACI 347 (2004; Errata 2008; Errata 2012) Guide to Formwork for Concrete

ACI SP-66 (2004) ACI Detailing Manual

ASTM INTERNATIONAL (ASTM)

ASTM A1064/A1064M (2015) Standard Specification for Carbon-Steel Wire and Welded Wire Reinforcement, Plain and Deformed, for Concrete

ASTM A615/A615M (2015a; E 2015) Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement

ASTM C1064/C1064M (2011) Standard Test Method for Temperature of Freshly Mixed Hydraulic-Cement Concrete

SECTION 03 30 53.09 26 Page 1

ASTM C1107/C1107M (2014a) Standard Specification for Packaged Dry, Hydraulic-Cement Grout (Nonshrink)

ASTM C143/C143M (2012) Standard Test Method for Slump of Hydraulic-Cement Concrete

ASTM C150/C150M (2015) Standard Specification for Portland Cement

ASTM C1602/C1602M (2012) Standard Specification for Mixing Water Used in Production of Hydraulic Cement Concrete

ASTM C172/C172M (2014a) Standard Practice for Sampling Freshly Mixed Concrete

ASTM C231/C231M (2014) Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method

ASTM C260/C260M (2010a) Standard Specification for Air-Entraining Admixtures for Concrete

ASTM C309 (2011) Standard Specification for Liquid Membrane-Forming Compounds for Curing Concrete

ASTM C31/C31M (2015a; E 2016) Standard Practice for Making and Curing Concrete Test Specimens in the Field

ASTM C33/C33M (2013) Standard Specification for Concrete Aggregates

ASTM C39/C39M (2015a) Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens

ASTM C494/C494M (2015a) Standard Specification for Chemical Admixtures for Concrete

ASTM C618 (2012a) Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete

ASTM C685/C685M (2014) Concrete Made by Volumetric Batching and Continuous Mixing

ASTM C920 (2014a) Standard Specification for Elastomeric Joint Sealants

ASTM C94/C94M (2015) Standard Specification for Ready-Mixed Concrete

ASTM D1752 (2004a; R 2013) Standard Specification for Preformed Sponge Rubber Cork and Recycled PVC Expansion

SECTION 03 30 53.09 26 Page 2

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

40 CFR 247 Comprehensive Procurement Guideline for Products Containing Recovered Materials

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. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-03 Product Data

Air-Entraining Admixture ; G Accelerating Admixture ; G Water-Reducing or Retarding Admixture ; G Curing Materials ; G Conveying and Placing Concrete ; G Formwork ; G Mix Design Data ; G Ready-Mix Concrete ; G Mechanical Reinforcing Bar Connectors ; G

SD-05 Design Data

Mix Design Data ; G, HDC

SD-06 Test Reports

Aggregates ; G Concrete Mixture Proportions ; G Compressive Strength Testing ; G Slump ; G Air Content ; G Water ; G

SD-07 Certificates

Cementitious Materials ; G Pozzolan ; G Aggregates ; G Delivery Tickets ; G

SD-08 Manufacturer's Instructions

Curing ; G

1.4 QUALITY ASSURANCE

Indicate specific locations of Concrete Placement, Steel Reinforcement, Accessories, Construction Joints, Control Joints, and conduit routed

SECTION 03 30 53.09 26 Page 3 through the foundations on detail drawings and include, but not be limited to, cubic feet of concrete placements, thicknesses and widths, plan dimensions, and arrangement of cast-in-place concrete section. Submit detail drawings in accordance with SECTION 33 00 00.01 26 . Include the mix design information on the drawings in a tabular format indicating at a minimum design strength, required slump, required air content, maximum aggregate, and all admixtures. The Government will retain the option to sample and test aggregates and concrete to determine compliance with the specifications. The Contractor shall provide facilities and labor as may be necessary to assist the Government in procurement of representative test samples.

1.4.1 Regulatory Requirements

The state statutory and regulatory requirements form a part of this specification to the extent referenced.

PART 2 PRODUCTS

2.1 SYSTEM DESCRIPTION

Sample concrete in accordance with ASTM C172/C172M. Determine slump and air content in accordance with ASTM C143/C143M and ASTM C231/C231M, respectively, when cylinders are molded. Prepare, cure, and transport compression test specimens in accordance with ASTM C31/C31M. Test compression test specimens in accordance with ASTM C39/C39M. Take samples for strength tests not less than once each shift in which concrete is produced. Provide a minimum of five specimens from each sample; two to be tested at 28 days (90 days if pozzolan is used) for acceptance, two will be tested at 7 days for information and one held in reserve. The requirements for cylinder testing may be waived if the concrete is a standard batch mix and the plant has previous test results indicating that the mix meets the requirements for these specifications.

2.1.1 Strength

Acceptance test results are the average strengths of two specimens tested at 28 days (90 days if pozzolan is used). The strength of the concrete is considered satisfactory so long as the average of three consecutive acceptance test results equal or exceed the specified compressive strength, f'c, and no individual acceptance test result falls below f'c by more than 500 psi .

2.1.2 Concrete Mixture Proportions

Concrete mixture proportions are the responsibility of the Contractor.

Mixture proportions must include the dry weights of cementitious material(s); the nominal maximum size of the coarse aggregate; the specific gravities, absorptions, and saturated surface-dry weights of fine and coarse aggregates; the quantities, types, and names of admixtures; and quantity of water per yard of concrete. Provide materials included in the mixture proportions of the same type and from the same source as will be used on the project. The specified compressive strength f'c is at minimum 4,500 psi at 28 days (90 days if pozzolan is used). Indicate the nominal maximum coarse aggregate and gradation; select a maximum aggregate meeting the requirements of ACI 318 . The air content must be between 4.5 and 7.5 percent, with a slump between 2 and 4 inches . The maximum water-cementitious material ratio is 0.45. Submit the applicable test reports and mixture proportions that will produce concrete of the quality

SECTION 03 30 53.09 26 Page 4 required, ten days prior to placement of concrete.

2.2 MATERIALS

Submit manufacturer's literature from suppliers which demonstrates compliance with applicable specifications for the specified materials.

2.2.1 Cementitious Materials

Submit Manufacturer's certificates of compliance, accompanied by mill test reports, attesting that the concrete materials meet the requirements of the specifications in accordance with the Special Clause "CERTIFICATES OF COMPLIANCE". Also, certificates for all material conforming to EPA's Comprehensive Procurement Guidelines (CPG), in accordance with 40 CFR 247 .

Provide cementitious materials that conform to the appropriate specifications listed:

2.2.1.1 Portland Cement

ASTM C150/C150M, Type II.

2.2.1.2 Pozzolan

Provide pozzolan that conforms to ASTM C618, Class F.

2.2.1.3 Blended Cements

a. Blended cements must conform to ASTM C595 Type IP, IS, IL (max 15%), or ASTM C1157 Type GU.

b. The pozzolan added to the Type IP blend must be ASTM C618 Class F fly ash and must be interground with the cement clinker.

c. Slag cement added to the Type IS blend must meet ASTM C989/C989M.

d. Limestone, as defined by ASTM C51, shall be naturally occurring with a calcium carbonate content of at least 70% by mass in accordance with ASTM C114.

2.2.2 Aggregates

For fine and coarse aggregates meet the quality and grading requirements of ASTM C33/C33M. Submit certificates of compliance and test reports for aggregates showing the material(s) meets the quality and grading requirements of the specifications under which it is furnished.

2.2.3 Admixtures

Provide admixtures, when required or approved, in compliance with the appropriate specification listed. Retest chemical admixtures that have been in storage at the project site, for longer than 6 months or that have been subjected to freezing, at the expense of the Contractor at the request of the Contracting Officer and will be rejected if test results are not satisfactory.

2.2.3.1 Air-Entraining Admixture

Provide air-entraining admixture that meets the requirements of

SECTION 03 30 53.09 26 Page 5

ASTM C260/C260M.

2.2.3.2 Accelerating Admixture

Not used.

2.2.3.3 Water-Reducing or Retarding Admixture

Provide water-reducing or retarding admixture meeting the requirements of ASTM C494/C494M, Type A, B, or D.

2.2.4 Water

Mixing and curing water in compliance with the requirements of ASTM C1602/C1602M ; free of injurious amounts of oil, acid, salt, or alkali.

2.2.5 Reinforcing Steel

Provide reinforcing bars conforming to the requirements of ASTM A615/A615M , Grade 60, deformed. Provide welded steel wire reinforcement conforming to the requirements of ASTM A1064/A1064M . Detail reinforcement not indicated in accordance with ACI 301 and ACI SP-66 . Provide mechanical reinforcing bar connectors in accordance with ACI 301 and provide 125 percent minimum yield strength of the reinforcement bar.

2.2.6 Expansion Joint Filler Strips, Premolded

Expansion joint filler strips, premolded of sponge rubber conforming to ASTM D1752, Type I.

2.2.7 Joint Sealants - Field Molded Sealants

Conform to ASTM C920, Type M, Grade NS, Class 25, use NT for vertical joints and Type M, Grade P, Class 25, use T for horizontal joints.

Provide polyethylene tape, coated paper, metal foil, or similar type bond breaker materials. The backup material needs to be compressible, nonshrink, nonreactive with the sealant, and a nonabsorptive material such as extruded butyl or polychloroprene foam rubber. Immediately prior to installation of field-molded sealants, clean the joint of all debris and further cleaned using water, chemical solvents, or other means as recommended by the sealant manufacturer or directed.

2.2.8 Formwork

Design and engineer the formwork as well as its construction in accordance with ACI 301 and ACI 347 . Fabricate of wood, steel, or other approved material. Submit formwork design prior to the first concrete placement.

2.2.9 Form Coatings

Provide form coating in accordance with ACI 301 .

2.2.10 Curing Materials

Provide curing materials in accordance with ACI 301 and ACI 308.1 . Provide curing compound conforming to ASTM C309. Submit manufacturer's instructions for placing evaporative retardant and curing compound.

SECTION 03 30 53.09 26 Page 6

2.2.11 NON-SHRINK GROUT

Provide non-shrink grout which is inorganic, non-metallic, non-gas-liberating cement-based meeting all requirements of ASTM C1107/C1107M ; with a minimum 28-day compressive strength of 5,000 pounds per square inch (psi); and with no shrinkage (0.0 percent) and a maximum 2.0 percent expansion in the hardened state.

2.3 READY-MIX CONCRETE

Provide ready-mix concrete with mix design data conforming to ACI 301 Part

2. Submit delivery tickets in accordance with ASTM C94/C94M for each ready-mix concrete delivery, include the following additional information:

a. Type and brand cement

b. Cement content in 94-pound bags per cubic yard of concrete

c. Maximum size of aggregate

d. Amount and brand name of admixture

e. Total water content expressed by water to cementitious materials ratio

PART 3 EXECUTION

3.1 Construction Tolerances

Apply a Class "C" finish to all surfaces except those specified to receive a Class "D" finish. Apply a Class "D" finish to all post-construction surfaces which will be permanently concealed. Surface requirements for the classes of finish required are as specified in ACI 117 .

3.2 PREPARATION

Prepare construction joints to expose coarse aggregate. The surface must be clean, damp, and free of laitance. Construct ramps and walkways, as necessary, to allow safe and expeditious access for concrete and workmen.

Remove snow, ice, standing or flowing water, loose particles, debris, and foreign matter. Satisfactorily compact earth foundations. Make spare vibrators available. Placement cannot begin until the entire preparation has been accepted by the Government.

3.2.1 Embedded Items

Secure reinforcement in place after joints, anchors, and other embedded items have been positioned. Arrange internal ties so that when the forms are removed the metal part of the tie is not less than 2 inches from concrete surfaces permanently exposed to view or exposed to water on the finished structures. Prepare embedded items so they are be free of oil and other foreign matters such as loose coatings or rust, paint, and scale. The embedding of wood in concrete is permitted only when specifically authorized or directed. Provide all equipment needed to place, consolidate, protect, and cure the concrete at the placement site and in good operating condition.

3.2.2 Formwork Installation

Forms must be properly aligned, adequately supported, and mortar-tight.

SECTION 03 30 53.09 26 Page 7

Provide smooth form surfaces, free from irregularities, dents, sags, or holes when used for permanently exposed faces. Chamfer all exposed joints and edges, unless otherwise indicated.

3.2.3 Production of Concrete

3.2.3.1 Ready-Mixed Concrete

Provide ready-mixed concrete conforming to ASTM C94/C94M except as otherwise specified.

3.2.3.2 Concrete Made by Volumetric Batching and Continuous Mixing

Conform to ASTM C685/C685M.

3.2.4 Waterstops

Install and splice waterstops as directed by the manufacturer.

3.3 CONVEYING AND PLACING CONCRETE

Convey and place concrete in accordance with ACI 301 and ACI 304R .

3.3.1 Cold-Weather Requirements

Place concrete in cold weather in accordance with ACI 306R.

3.3.2 Hot-Weather Requirements

Place concrete in hot weather in accordance with ACI 305R.

3.4 FINISHING

3.4.1 Temperature Requirement

Do not finish or repair concrete when either the concrete or the ambient temperature is below 50 degrees F , unless provisions for cold weather concreting are provided, such as supplementary heating or admixture.

3.4.2 Finishing Formed Surfaces

Finished formed surface in accordance with ACI 301, Section 5. Remove all fins and loose materials, and surface defects including filling of tie holes. Repair all honeycomb areas and other defects. Remove all unsound concrete from areas to be repaired. Ream or chip surface defects greater than 1/2 inch in diameter and holes left by removal of tie rods in all surfaces not to receive additional concrete and fill with dry-pack mortar. Brush-coat the prepared area with an approved epoxy resin or latex bonding compound or with a neat cement grout after dampening and filling with mortar or concrete. Use a blend of portland cement and white cement in mortar or concrete for repairs to all surfaces permanently exposed to view shall be so that the final color when cured is the same as adjacent concrete.

3.4.3 Finishing Unformed Surfaces

Finish unformed surfaces in accordance with ACI 301 .

Tolerances:

SECTION 03 30 53.09 26 Page 8

Class A: 1/8 inch in 10 foot Class B: 1/4 inch in 10 foot

Surfaces Exposed to View:

Provide a smooth finish for exposed concrete surfaces.

Remove fins and projections, and patch voids, air pockets, and honeycomb.

Fill tie holes with nonshrink nonmetallic grout.

Float Finish:

After concrete has been placed, consolidated, struck off, and leveled, do no further work until ready for floating.

Begin floating when water sheen has disappeared and surface has stiffened sufficiently to permit operation.

During or after first floating, check planeness of entire surface with a 10 foot straightedge applied at not less than two different angles.

Cut down all high spots and fill all low spots during this procedure to produce a surface within Class B tolerance throughout.

Refloat slab immediately to a uniform sandy texture.

Troweled Finish:

Float finish surface.

Next power trowel, and or finally hand trowel.

Produce a smooth surface which is relatively free of defects with hand troweling.

Perform additional troweling by hand after surface has hardened sufficiently.

Final trowel when a ringing sound is produced as trowel is moved over surface.

Thoroughly consolidate surface by hand troweling.

Leave finished surface essentially free of trowel marks, uniform in texture and appearance, and place to a Class A tolerance.

Broom Finish: Immediately after concrete has received float finish as specified, give it a transverse scored texture by drawing a broom across surface.

FINISH LOCATION

Float Concrete pads for electrical equipment.

Trowel NOT APPLICABLE

Broom Sidewalks

SECTION 03 30 53.09 26 Page 9

3.5 CURING AND PROTECTION

Cure and protect in accordance with ACI 301 and ACI 308.1 . For final curing, install liquid membrane-forming curing compound.

3.6 FORM WORK

Provide form work in accordance with ACI 301 .

3.6.1 Removal of Forms

Remove forms in accordance with ACI 301 .

3.7 STEEL REINFORCING

Reinforcement must be free from loose, flaky rust and scale, and free from oil, grease, or other coating which might destroy or reduce the reinforcement's bond with the concrete.

3.7.1 Fabrication

Shop fabricate steel reinforcement in accordance with ACI 318 and ACI SP-66 .

Provide shop details and bending in accordance with ACI 318 and ACI SP-66 .

3.7.2 Splicing

Perform splices in accordance with ACI 318 and ACI SP-66 .

3.7.3 Supports

Secure reinforcement in place by the use of metal or concrete supports, spacers, or ties.

3.8 EMBEDDED ITEMS

Before placing concrete, take care to determine that all embedded items are firmly and securely fastened in place. Provide embedded items free of oil and other foreign matter, such as loose coatings of rust, paint and scale. Embedding of wood in concrete is permitted only when specifically authorized or directed.

3.9 TESTING AND INSPECTING

Report the results of all tests and inspections conducted at the project site informally at the end of each shift in the daily QC report. Submit written reports weekly. Deliver within three days after the end of each weekly reporting period.

3.9.1 Field Testing Technicians

The individuals who sample and test concrete must have demonstrated a knowledge and ability to perform the necessary test procedures equivalent to the ACI minimum guidelines for certification of Concrete Field Testing Technicians, Grade I.

3.9.2 Preparations for Placing

Inspect foundation or construction joints, forms, and embedded items in sufficient time prior to each concrete placement to certify that it is

SECTION 03 30 53.09 26 Page 10 ready to receive concrete.

3.9.3 Sampling and Testing

Obtain samples and test concrete for quality control during placement.

Sample fresh concrete for testing in accordance with ASTM C172/C172M.

a. Sample concrete for compressive strength testing every 150 cubic yards of concrete for each design mix; make six test cylinders comforming to ASTM C31/C31M. Perform compressive strength testing conforming to ASTM C39/C39M. Test two cylinders at 7 days; two cylinders at 28 days;

and hold two cylinders in reserve.

b. Test slump at the plant for each design mix in accordance with ASTM C143/C143M at least once per day . Test slump at site in accordance with ASTM C143/C143M at least once during each truck placement .

c. Test air content for air-entrained concrete in accordance with ASTM C231/C231M. Check air content at least once during each placement for each strength of concrete required.

d. Determine temperature of concrete at time of placement in accordance with ASTM C1064/C1064M . Check concrete temperature at least once during each shift that concrete is placed for each strength of concrete required.

3.9.4 Action Required

3.9.4.1 Placing

Do not begin placement until the availability of an adequate number of acceptable vibrators, which are in working order and have competent operators, has been verified. Discontinue placing if any lift is inadequately consolidated.

3.9.4.2 Air Content

Whenever an air content test result is outside the specification limits, adjust the dosage of the air-entrainment admixture prior to delivery of concrete to forms.

3.9.4.3 Slump

Whenever a slump test result is outside the specification limits, adjust the batch weights of water and fine aggregate prior to delivery of concrete to the forms. Make the adjustments so that the water-cementitious material ratio does not exceed that specified in the submitted concrete mixture proportion and the required concrete strength is still met.

-- End of Section --

SECTION 03 30 53.09 26 Page 11

SECTION 03 60 00.01 26

CONCRETE DEMOLITION, REPAIR OF CONCRETE SURFACES,

AND MINOR EQUIPMENT FOUNDATIONS

PART 1 GENERAL

1.1 GENERAL INFORMATION

The work covered by this Section consists of furnishing all material, labor, and equipment, and performing all work for the removal of concrete from the powerhouse and switchyard , the restoration of the concrete surfaces to the required lines and grades, and placement of interior equipment foundations. The Contractor is required to provide protection from concrete dust and water damage to existing and new equipment. Take effective measures to control gas, vapor, fumes, dust, slurry and mist during concrete removal operations. Accomplish work described in this Section in accordance with and under limitations stated in Sections 26 05 00.00 26 , BASIC ELECTRICAL MATERIALS AND METHODS and 26 05 19.00 26 , INSULATED WIRE AND CABLE.

1.2 REFERENCES

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

ASTM INTERNATIONAL (ASTM)

ASTM C1107/C1107M (2020) Standard Specification for Packaged Dry, Hydraulic-Cement Grout (Nonshrink)

ASTM C882/C882M (2020) Bond Strength of Epoxy-Resin Systems Used with Concrete by Slant Shear

ASTM C928/C928M (2020a) Standard Specification for Packaged, Dry, Rapid-Hardening Cementitious Materials for Concrete Repairs

ASTM C579 (2018) Standard Test Methods for Compressive Strength of Chemical-Resistant Mortars, Grouts, Monolithic Surfacings, and Polymer Concretes

ASTM C881/C881M (2020a) Standard Specification for Epoxy-Resin-Base Bonding Systems for Concrete

ASTM E814 (2013a; R 2017) Standard Test Method for Fire Tests of Penetration Firestop Systems

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1 (2014) Safety -- Safety and Health Requirements Manual

SECTION 03 60 00.01 26 Page 1

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

29 CFR 1910 Occupational Safety and Health Standards

29 CFR 1926 Safety and Health Regulations for Construction

UNDERWRITERS LABORATORIES (UL)

UL 1479 (2015; Reprint May 2021) Fire Tests of Through-Penetration Firestops

UL Fire Resistance (2014) Fire Resistance Directory

FM GLOBAL (FM)

FM APP GUIDE (updated on-line) Approval Guide http://www.approvalguide.com/

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. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Concrete Removal and Disposal Plan ; G, HDC

Saw Cutting Procedure ; G, HDC

Core Drilling Procedure ; G, HDC

Concrete Imaging Report ; G, HDC

Repair Procedure of Concrete Surfaces ; G, HDC

Firestopping Materials ; G, HDC

Waterproof Wall Penetration Seals ; G, HDC

1.4 CONCRETE REMOVAL LOCATIONS

Locations of concrete removal areas are shown on the drawings and as described as follows:

a. Core drill holes for piping and conduit as required . Use core drill holes no larger than 8 inches in diameter unless otherwise shown on drawings. Separate core drill holes through the same structural element by at least 2 feet. Locate core drill holes a minimum of 2 feet away from existing penetrations.

b. Installation of post installed concrete anchors.

c. Sawcutting of the existing transformer and reactor foundations

d. Removal of existing insulator support foundations as shown.

SECTION 03 60 00.01 26 Page 2

2.1 NON-SHRINK GROUT

Provide non-shrink grout which is inorganic, non-metallic, non-gas-liberating cement-based meeting all requirements of ASTM C1107/C1107M ; with a minimum 28-day compressive strength of 5,000 pounds per square inch (psi); and with no shrinkage (0.0 percent) and a maximum 2.0 percent expansion in the hardened state.

2.2 EPOXY ADHESIVE GROUT

Epoxy adhesive grout for use with post installed concrete anchors must be a high strength, two part epoxy adhesive meeting all requirements of ASTM C881/C881M Type IV, Grade 2 and 3; have a minimum compressive strength of 12,000 psi per ASTM C579; and have a seven day cure bond strength of 1,800 psi per ASTM C882/C882M.

2.3 READY-MIX CONCRETE

Utilize materials for ready mix concrete meeting the requirements of 03 30 50.09 26 .

2.4 FIRESTOPPING MATERIALS

Provide firestopping materials , supplied from a single domestic manufacturer, consisting of commercially manufactured, asbestos-free, nontoxic products FM APP GUIDE approved, or UL listed, for use with applicable construction and penetrating items, complying with the following minimum requirements:

2.4.1 Toxicity

Material must be nontoxic and carcinogen free to humans at all stages of application or during fire conditions and must not contain hazardous chemicals or require harmful chemicals to clean material or equipment.

Firestop material must be free from Ethylene Glycol, PCB, MEK, or other types of hazardous chemicals.

2.4.2 Fire Resistance Rating

Firestop systems must be UL Fire Resistance listed or FM APP GUIDE approved with "F" rating of at least 3 hours

2.4.2.1 Through-Penetrations

Test f irestopping materials for through-penetrations in accordance with ASTM E814 and UL 1479 to provide the following resistance ratings:

F Rating equals 3 hour L Smoke resistance rating

For through-penetrations in slabs which are not in a raised equipment foundation, the firestopping material must be rated with a W1 water resistance.

SECTION 03 60 00.01 26 Page 3

2.5 GROUT FOR UNCONFINED CONCRETE REPAIR

Provide commercially available prepackaged grout needing only the addition of water and pea gravel (depending on the size of the repair) and consisting of a commercial formulation suitable for the application proposed and meeting the requirements for ASTM C928/C928M. The use of metallic iron in the grout will not be acceptable.

2.6 Waterproof Wall Penetration Seals

For all exterior to interior conduit or piping penetrations, seal wall penetrations with 100% waterproof commercially available methods. Products and systems must be designed for a minimum 25 year life.

PART 3 EXECUTION

3.1 GENERAL SAFETY

3.1.1 General

Accomplish all site work in compliance with EM 385-1-1 , 29 CFR 1910 and 29 CFR 1926 . Provide all documentation as required by SECTION 01 35 26 , Governmental Safety Requirements.

3.1.2 Electrical Hazards

The work areas may be in proximity of energized electrical equipment.

Formally train and document safety training for all workers required to work in this area. Spray over onto live equipment is hazardous to workers and equipment and is not permitted. Provide Contracting Officer (CO) with signed safety training sheets documenting worker safety training prior to starting work.

3.2 GAS, VAPOR, FUME, DUST, SLURRY AND MIST CONTROL IN POWERHOUSE

Take all necessary measures to effect maximum control of all gases, vapors, fumes, dust, slurry and mists created by Contractor operations under this contract. To the maximum extent possible, remove all dust and dirt by vacuum cleaning and mopping, unless otherwise directed by the CO.

The required dust and debris control measures include but are not limited to the following:

a. Provision of exhaust ducts which discharge outside the powerhouse structure where mechanical ventilation is used. Comply with requirements of 29 CFR 1910 .94 and 29 CFR 1926 .57 for ventilation systems.

b. Controlled operation of power-driven tools.

c. Providing and removal of approved dust preventatives in areas that cannot be properly rendered free from excessive dusting by vacuum cleaning and mopping or other methods.

d. Vacuum cleaning and mopping (or other acceptable method) of spaces within the powerhouse where dust accumulates.

e. Only air, electrical, propane, or battery-driven equipment may be used inside the powerhouse.

SECTION 03 60 00.01 26 Page 4

f. Keep all doors closed when not in use.

g. Do not block doors for extended periods unless agreed upon in writing by the CO.

h. Methods to prevent exposure of employees to inhalation, ingestion, skin absorption, or contact with any material or substance at concentrations above those specified in 29 CFR 1910 .1000, 29 CFR 1926 .55 and 29 CFR 1926 .58.

3.3 TEMPORARY BARRIER

Construct temporary barriers for the control of dust and debris as required by the CO. Submit the design of the barriers for approval, as part of the Concrete Removal and Disposal Plan.

3.4 REMOVAL METHOD

3.4.1 General

Submit a written…