PERFORMANCE WORK STATEMENT (PWS)

Western Area Power Administration (WAPA)

Sierra Nevada Region (SNR)

TRINITY KY1A BUSHING REPLACEMENT

March 2, 2026

1. GENERAL

1.1. Introduction

The Western Area Power Administration (WAPA) requires a Contractor to replace the KY1A bushings at Trinity substation, in accordance with manufacturer’s recommendations. The work, as described further in this Performance Work Statement (PWS) herein, will be performed for the Sierra Nevada Region. WAPA and the Government are used interchangeably in this document, and all have the same meaning.

1.2. Background

WAPA, part of the U.S. Department of Energy (DOE), is a Federal power marketing administration that markets and delivers reliable, cost-based hydroelectric power and related services to wholesale customers in 15 states. WAPA also services the Colorado River Storage Project Management Center (CRSP-MC) in Salt Lake City, Utah. The CRSP-MC provides transmission services to facilities in Arizona, New Mexico, Colorado, Utah, and Wyoming.

1.2.1. Sierra Nevada Region (SNR). SNR serves preference customers in California. SNR’s mission includes maintenance and operation of the high-voltage transmission system including nearly 18 substations and over 884 miles of high-voltage power transmission lines that deliver power from 11 power plants to its wholesale customers. SNR also maintains several communication sites.

1.3. Description of Services

The Contractor shall provide all personnel, transportation, equipment, tools, materials, supervision, and other items and services necessary to perform the transformer service as described in section 2.

Scope of Work (SOW), herein. The Contractor shall provide all services including technical services to replace the bushings and ensure the restoration of the system to provide continuous and reliable operation of the transformer. The Contractor shall perform all services in accordance with all applicable federal, state, and local laws and regulations, and original Equipment Manufacturers (OEM) specifications.

1.4. Government Personnel

1.4.1. The Contracting Officer (CO) is the individual executing this contract on behalf of the

Government and is responsible for the overall administration of the contract. He/she is the only person authorized to make any changes in the prices, terms, or other conditions of the contract.

1.4.2. The Contracting Officer’s Representative (COR) is responsible for giving the Contractor any special technical instructions or guidance necessary to ensure contract execution. The COR has no authority to alter the terms of conditions of the contract.

1.4.3. The Technical POC is James Higgins. The Technical POC has no authority to alter the terms of conditions of the contract.

1.5. Contractor Personnel

1.5.1. The Contractor shall furnish adequate supervision at the premises to ensure that work is performed in a satisfactory manner. It is the responsibility of the Contractor to maintain close surveillance over personnel employed to perform work on the contract.

1.5.2. Contractor personnel shall present a neat appearance, wear distinctive clothing bearing the name of the company, and be easily recognized as Contractor employees.

Employees must be clearly able to read, write, speak, and understand English. The Contractor shall have a competent on-site representative authorized to act on behalf of the Contractor, available to the CO or COR to receive instructions or information regarding work under the contract.

1.5.3. No unauthorized personnel are permitted on the premises.

1.5.4. Point of Contact. Contractor shall provide point of contact that will be responsible for performance of the work. The name of the contract manager and an alternate(s) shall be designated in writing to the CO, no later than 15 calendar days after contract award.

1.5.5. The Contractor shall provide qualified, trained, skilled personnel to complete the work.

1.6. Schedule and Place of Performance

1.6.1. Schedule. The Contractor shall submit a Schedule, to the COR and CO, within 15 calendar days after contract award. Any changes to the Schedule throughout the Period of Performance will require coordination with the COR and acceptance by the CO.

1.6.2. Place of Performance.

Trinity Substation 400 Trinity Powerhouse Road Lewiston, CA 96052

1.6.3. Period of Performance. The contract period of performance for the Trinity KY1A bushing replacement is between August 1, 2026, and November 30, 2026. The Contractor will coordinate specific dates in advance with the technical POC.

1.6.4. Hours of Work. Normal work hours for Maintenance personnel are from 7:00 a.m. to

3:30 p.m. daily, Tuesday through Friday, with exception of US Federal Holidays.

Differing from this schedule may be authorized on a case-by-case basis with the COR’s or CO’s prior approval. The Contractor will be notified by the COR or CO seven (7) calendar days in advance if work is to be conducted outside of the normal work hours.

Should the Contractor find they need to work outside the normal work hours once they have started performing their scheduled Preventive Maintenance Inspection (PMI), they will contact the COR or CO immediately so arrangements can be made.

1.6.5. Federal Holidays.

1.6.5.1. New Year’s Day – 1 January

1.6.5.2. Martin Luther King Day – 3rd Monday in January

1.6.5.3. Washington’s Birthday – 3rd Monday in February

1.6.5.4. Memorial Day – last Monday in May

1.6.5.5. Juneteenth – 19 June

1.6.5.6. Independence Day – 4 July

1.6.5.7. Labor Day – 1st Monday in September

1.6.5.8. Columbus Day – 2nd Monday in October

1.6.5.9. Veterans Day – 11 November

1.6.5.10. Thanksgiving Day – 4th Thursday in November

1.6.5.11. Christmas Day – 25 December

1.7. Submittals.

1.7.1. The Government requires ten (10) business days for review of each deliverable/submittal. All deliverables and submittals shall be provided via electronic means to the Technical POC for review and approval.

1.7.2. Safety and Health Plan. A Safety Plan is required to be submitted to the CO and COR no later than ten (10) calendar days after contract award. WAPA’s approval of the plan is required prior to the commencement of work. The safety plan (Injury and Illness Prevention Plan) must meet California OSHA and industry standards.

1.7.3. List of Employees. Contractor shall furnish names of all personnel performing work on this contract no later than ten (10) calendar days after contract award. List of employees shall be submitted to the CO and COR no later than ten (10) calendar days after contract award. The list shall include the Contractor’s confirmation that all proposed employees are U.S. citizens. Any Foreign Nationals proposed to work at WAPA sites, must submit their information to the Contracting Officer, 45 days prior to starting work.

All Foreign Nationals must be approved by the Government, prior to starting work. No unidentified or unauthorized personnel shall be allowed or permitted on the work site.

1.7.4. Work Schedule. Contract shall submit a proposed work schedule to the CO and COR no later than ten (10) calendar days after contract award. WAPA’s approval of the work schedule is required prior to the commencement of work. Changes in the proposed schedule must be coordinated and approved by the COR.

1.7.5. Pollutant Spill Prevention Notification and Clean-up Plan. The Contractor must submit a Pollutant Spill Prevention Notification and Clean-up Plan to the Government CO and Technical POC no later than 10 calendar days after contract award. WAPA’s approval of the plan is required prior to work commencement.

1.7.6. Safety Data Sheets. The Contractor shall provide WAPA with the Safety Data Sheet

(SDS) on any chemicals that will be used.

1.7.7. Service Log. Maintain a written service log.

1.7.8. Disposal records. The Contractor shall provide weight tickets for all materials recycled or disposed of.

1.8. Pre-Performance Meeting

The COR and/or CO will schedule a meeting with the Contractor within 14 days following the contract award and prior to start of work, to discuss the requirements of the contract. The attendees may include Safety and Environment. The meeting may be held in person or by teleconference, at the discretion of the COR and/or CO.

1.9. Quality Control and Quality Assurance

1.9.1. General. The Contractor shall perform all services hereunder in compliance with accepted industry standards, guidelines, and practices and in accordance with any quality assurance program normally used by the Contractor.

1.9.2. Quality Control Plan. The Contractor is responsible for quality control and shall utilize its own internal quality control processes in the performance of this contract.

The Contractor shall develop and maintain a Quality Control Plan (QCP) to ensure all services are performed in accordance with the Government’s performance standards outlined in the Performance Requirements Summary (PRS) section of this PWS.

1.9.3. Government Performance Standards. See Exhibit 1. The PRS is a listing of significant performance objectives with associated performance standards that will be monitored and inspected by Government personnel. Each performance objective represents a critical function as identified by the Government at the time of contract award. The performance standard represents the minimum acceptable level of Contractor performance. The performance objectives and standards represent only the critical components of this Contract, and do not excuse the Contractor from performance of other responsibilities identified in the PWS. All services described in this PWS are subject to inspection/surveillance by the Government.

1.9.4. Government Surveillance of Contractor Performance. In order to supplement the

Contractor’s QCP, WAPA personnel will verify Contractor compliance with essential performance requirements. The Government may use various methods to perform surveillance of Contractor performance, including customer input, random sampling, periodic inspection, Contractor reporting, etc.

1.9.5. Contract Discrepancy Report (CDR). A CDR (PWS Exhibit 2) will be initiated by the CO or COR if, at any time during the performance, the results of WAPA’s surveillance show the number of observations of unacceptable performance during the period exceeds the threshold specified in the PRS, and the CO/COR determines that the unacceptable performance was not caused by the Government. In the case of unacceptable performance, the Contractor may be required to re-accomplish the tasks that were deemed unacceptable at no additional cost to the Government. The Contractor shall be provided with the opportunity to correct any deficiencies within 24 hours of notification from the COR at no increase in contract price. In the event the deficiencies are not corrected with 24 hours of notification, or if repeated deficiencies occur, the Government may elect to negotiate an equitable reduction in contract price or terminate the contract for cause. If deduction from payment is the appropriate action, the COR and CO will calculate the payment deduction based on the performance period in which the discrepancy occurred. The deduction is taken from the Contractor’s payment as close as possible to the month in which the discrepancy occurred, but not necessarily the same month. The Government does not withhold payment of an invoice while calculating the deduction.

1.10. Compliance with Regulations

In performing the work required by this Contract, the Contractor shall comply with all applicable Federal, State, and local laws and regulations.

1.11. Licenses and Permits

The Contractor shall obtain and maintain, at its sole expense, all necessary licenses and permits required to meet the requirements of the contract.

1.12. Materials, Equipment and Storage

1.12.1. The Contractor shall furnish all materials and supplies required for the performance of work under this contract.

1.12.2. The Contractor shall determine and furnish all equipment required for the performance of the work under this contract. All equipment shall comply with applicable OSHA guidelines and shall be in good operating condition. The Contractor shall operate the equipment in accordance with the original manufacturer’s recommendation and applicable laws and regulations.

1.12.3. The Contractor shall provide off-site storage space for its materials and equipment.

Materials and equipment shall not be stored on WAPA property.

1.13. Interference with Business

1.13.1. The Government may undertake or award other contracts for additional work, and the

Contractor shall fully cooperate with such other contractors and Government employees and carefully schedule its own work to such additional work as may be directed by the COR. The Contractor shall not commit or permit any act that will interfere with the performance of work by any other contractor or by Government employees.

1.13.2. The services under this contract shall be performed in such a way that there will be no interruption to or interference with the normal operation of Government business on the premises. Persons employed by the Contractor shall, while on the premises, comply with all applicable regulations.

1.14. Government Furnished Property, Equipment, Materials and Utilities

1.14.1. The Government will not furnish any property, equipment, or materials for use under this contract.

1.14.2. The Government will provide electrical power at sites with existing power outlets for the operation of equipment as necessary to perform services. Contractor shall furnish and provide power for those sites without electrical power.

1.14.3. The Government will provide water at sites where it is available from an existing outdoor source. Contractor shall furnish and provide water for those sites without existing water.

1.14.4. Sanitation facilities are available at some sites.

1.14.5. Provide recent (within one year) PCB tests prior to processing.

1.15. Security of Facilities

Security of Government facilities is a shared responsibility of all employees, both Federal and contractor.

1.15.1. Contractor personnel shall be alert to surroundings and notify the CO, COR, and regional Security Office, including unescorted persons who do not have a visitor’s badge, or known or suspected unauthorized removal of Government property from the facility.

1.15.2. Contractor personnel shall notify the CO, COR and regional Security Office, if they have any security issues or concerns.

1.15.3. Contractor personnel shall protect identification badges and card keys and notify the CO, CORR, and regional Security Office within 24 hours if card keys or badges are lost. Badges and card keys shall be returned to the CO or COR when employment is terminated. (Reference clauses WES-H-1045 and WES-H-1055.)

1.15.4. Contractor personnel shall not prop open doors, and when entering or leaving the complex shall ensure that doors and gates are secure. Contract staff shall notify the CO, COR, and regional Security Office if they are unable to secure a door or gate.

1.15.5. Contractor personnel shall not allow any person to enter WAPA property without proper clearance from the CO or COR.

1.15.6. The Government may require immediate removal of the employee from the contract and the job site for conduct issues deemed by the Government to be serious (for example, violent behavior or comments, theft, misuse of Government equipment, unsafe work practices, fraudulent activity, etc.).

1.15.7. Weapons, Firearms, and Ammunition. Contractor employees are prohibited from possessing weapons, firearms, or ammunition, on themselves or within their Contractor-owned vehicles or privately-owned vehicle while on WAPA property.

1.15.8. REAL ID

1.15.8.1. Federal agencies will only accept state-issued driver's licenses and Personal Identity Verification (PIV) credentials/badges as identification for purposes of accessing federal facilities.

1.15.8.2. Visitors at WAPA facilities not possessing Personal Identity Verification (PIV) credentials/badge, identification used by federal employees and contractors, must present a state-issued driver's license or identification listed below.

1.15.8.2.1. State-issued Enhanced Driver's License

1.15.8.2.2. U.S. passport

1.15.8.2.3. U.S. passport card

1.15.8.2.4. DHS trusted traveler cards (Global Entry, NEXUS, SENTRI, FAST)

1.15.8.2.5. U.S. Department of Defense ID, including IDs issued to dependents

1.15.8.2.6. Permanent resident card

1.15.8.2.7. Border crossing card

1.15.8.2.8. An acceptable photo ID issued by a federally recognized Tribal

Nation/Indian Tribe

1.15.8.2.9. Foreign government-issued passport

1.15.8.2.10. Canadian provincial driver’s license or Indian and Northern

Affairs Canada card

1.15.8.2.11. Transportation worker identification credential

1.15.8.2.12. U.S. Citizenship and Immigration Services Employment

Authorization Card (I-766)

1.15.8.2.13. U.S. Merchant Mariner Credential

1.15.8.2.14. Veteran Health Identification Card (VHIC)

1.15.8.3. Visitors who do not present acceptable identification, as outlined here, will not be allowed access.

1.15.8.4. Absent express guidance from senior leadership, no exemptions will be granted.

1.16. Safety and Reporting Requirements

1.16.1. High. Working with or around hazards such as exposure to the following risks: (1) Equipment rollover; (2) Crane or rigging failure; (3) Energized high voltage (over 600 volts) electrical equipment which is not expected, but can occur through equipment failure or operator error; (4) Heights over 4-feet requiring a Fall Protection Plan; or (5) Work with handheld electrical equipment in wet or highly conductive locations.

Examples of high-risk hazards include building construction projects and footings or pad construction in areas of energized yards with overhead or adjacent energized electrical parts en route to the site or within 50-feet of the worksite.

1.16.1.1. Work considered too dangerous to be performed without joint pre-planning and constant oversight by a qualified and trained WAPA Observer. Examples of such hazards may include the following: (1) Confined spaces; (2) Chemicals or substances requiring airline respirator protection; (3) Heights above 4-feet requiring a Fall Protection Plan include items such as personal fall arrest system, work positioning equipment or fall restraint system; (4) Over water; (5) Trenches and excavations requiring Occupational Safety and Health Administration protections such as sloping, benching or shoring activities; (6) Requiring personal protective equipment requirements capable of inducing heat stress; or (7) Energized yards with overhead or adjacent energized electrical equipment which is en route to, or in the proximity of, energized electrical equipment. Examples of work considered too dangerous include work in close proximity to overhead busses, line insulator replacement, epoxy application inside of water tanks, use of isocyanate paints, sandblasting, tower removal and pentachlorophenol applicators.

1.16.2. The Contractor shall comply with the latest effective standards promulgated by the

Department of Labor, Occupational Safety and Health Administration, Safety and Health Standards, 29 CFR 1910 and 29 CFR 1925, and shall comply with all applicable safety and health regulations and requirements, including DOE and WAPA requirements.

1.16.3. The Contractor shall take all reasonable precautions in the performance of the work under this contract to protect the safety and health of employees and members of the public and shall comply with all applicable safety and health regulations and requirements, including DOE and WAPA requirements.

1.16.4. The Contractor shall maintain an accurate record of and shall immediately report to the

COR and the CO, all cases of death, occupational disease, or traumatic injury to employees or the public, and any property damage as a result of performance under this contract.

1.16.5. The Contractor shall ensure that its employees are provided with personal protective equipment (PPE) as necessary in accordance with established regulations and procedures. This equipment includes, but is not limited to, occupational foot protection and eye and face protection as required by OSHA Standards, 29 CFR 1910 and as required by WAPA safety standards and directives.

1.16.6. The Contractor shall ensure that its employees have been appropriately instructed and trained in the proper use of any equipment, vehicles, and/or personal protective equipment needed for the performance of their duties. The Contractor shall ensure that its employees comply with all applicable Federal, State, and/or local safety rules and regulations in the performance of their duties.

1.16.7. The Contractor shall report all near misses to the CO, COR within 24 hours of the occurrence. These near-miss reports, identifying the nature of the hazard and the corrective actions which have been implemented to prevent a reoccurrence in the future, may be generic, with no mention of individual employees involved in the incident. Near-miss reports are used as an information tool and are distributed regionally.

1.16.8. The Contractor is required to establish a Safety Plan/Program which includes, in addition to other requirements, a monthly safety meeting for all employees (with the exception of office staff). The Contractor's Safety Plan shall be documented and available for the CO and COR to review at any time.

1.16.9. If a subcontractor is utilized, the subcontractor will be aware of the prime Contractor’s safety plan and adhere to those safety precautions.

1.16.10. The Contractor and the COR will establish a designated smoking area before smoking is allowed on site. Any smoking will be conducted in this area only. Smoking anywhere on-site out of this area is prohibited. A 30-minute fire watch is required after the completion of any brazing, cutting or welding operations or after smoking and before the Contractor leaves the site for the day. Contractor will provide the appropriate class fire extinguisher anytime these activities will be performed on-site.

1.17. Environmental Requirements

1.17.1. The Contractor shall comply with all applicable Federal, State, and local environmental laws and regulations, and current WAPA policies and procedures.

1.17.2. The Contractor shall dispose of or recycle hazardous, universal, and non-hazardous waste material in accordance with all applicable Federal, State, and local laws, regulations and ordinances and current policies and procedures identified by WAPA.

Wastes shall be reduced by recycling, reusing, or reprocessing to the maximum extent practicable.

1.17.3. Hazardous, Universal, and Non-Hazardous Wastes. The Contractor shall manage hazardous, universal, and non-hazardous wastes in accordance with all applicable State, Federal and Local regulations, and existing policies and procedures identified by WAPA. If hazardous waste manifests are required for a waste, the disposal shall be coordinated with the SNR Environmental compliance team. Copies of all manifests, weight tickets, and bills of lading shall be provided to WAPA Environment.

1.17.4. Contractor’s Liability for Regulated Material Incidents. The Contractor is solely liable for all expenses related to spills, mishandling, or incidents of regulated material (such as, but not limited to petroleum products and pesticides) attributable to its employees’ actions or the actions of its subcontractors. This includes all response, investigation, cleanup, disposal, permitting, reporting, and requirements from applicable environmental regulation agencies.

1.17.5. Bird Nests. If active bird nests (i.e., containing chicks or eggs) are found during the service process, removal of the nest and any service must not occur without approval from WAPA Environmental. In the event active nests are discovered work will stop and the Technical POC will be immediately notified.

1.17.6. Air Quality Procedures. The Contractor shall follow standard operating procedures to prevent negative impacts to air quality. They are listed here for reference.

a) AQ-SOP-1 The Contractor will adhere to all applicable requirements of those agencies having jurisdiction over air quality matters, and any necessary permits for O&M will be obtained.

b) AQ-SOP-2 Machinery and vehicles will be kept in good operating condition and older equipment will be replaced with equipment meeting applicable emission standards; appropriate emissions-control equipment will be maintained for vehicles and equipment, per EPA and/or WAPA air emission requirements.

c) AQ-SOP-3 Idle equipment will be shut down when not in active use; visible emissions from stationary generators will be controlled.

d) AQ-SOP-4 Dust-control measures will be implemented in road construction and maintenance, as needed. Trucks transporting loose material will be covered or maintain at least two feet of freeboard and will not create any visible dust emissions.

e) AQ-SOP-5 There will be no open burning of construction trash.

f) AQ-SOP-6 Grading activities will cease during periods of high winds (as determined by local air quality management districts).

g) AQ-SOP-7 Major operations will be avoided on days when the local Air Quality

Index is expected to exceed 150.

1.17.7. Oil Containment. The Contractor shall provide and implement temporary oil containment under the truck and/or other temporary oil storage areas during the duration of the project.

1.17.8. Off-Road Diesel Equipment

1.17.8.1. The Contractor shall maintain compliance with the In-Use Off Road Diesel equipment standards. The Contractor shall submit valid copies of Certificates of Reported Compliance to the CO for each fleet of off-road diesel equipment, (including separate Certificates for subcontractors’ fleets) to be brought onto WAPA properties and/or jobsites prior to contract award. If a project includes multiple calendar years of work, the Contractor shall submit updated Certificates of Reported Compliance for their own fleets and for any subcontractors’ fleets between March 1 and March 15 of every year through the end of the contract.

If subject equipment will be operating on the jobsite for eight (8) days or more, the contractor shall display signage in lettering larger than size 14-point type and displayed in a conspicuous place where notices to employees are customarily posted at the jobsite or where there is employee foot traffic. If one of the above locations is also viewable by the public, it should be posted at that location. Signage must read according to the language in the regulation, and provided in section 1.17.9, “Contractor Signage for Projects with Equipment Onsite Eight (8) Days or Longer.”

If the prime contractor discovers that any fleet intending to operate vehicles subject to this regulation for the prime contractor does not have a valid Certificate of Reported Compliance, as defined in section 2449(n) of the CCR, or if the prime contractor observes any noncompliant vehicles subject to the regulation on the prime contractor’s jobsite, then the prime contractor must report the following information to CARB at https://calepacomplaints.secure.force.com/complaints/Complaint, or at dieselcomplaints@arb.ca.gov, for each fleet without a valid Certificate of

Reported Compliance or each noncompliant vehicle, as applicable within five days of such discovery:

A) The date on which the prime contractor discovered the fleet’s lack of a valid Certificate of Reported Compliance or observed the noncompliant vehicle, B) The fleet’s Responsible Party name, C) The fleet’s business address, D) The fleet’s business email, if known, E) The fleet’s business phone number, if known, F) The DOORS fleet ID number, if known, G) The location of the jobsite on which the fleet or the noncompliant vehicle is operating or had operated, if applicable, and H) A statement specifying whether the fleet or vehicle is continuing to operate at the jobsite, if applicable.

1.17.9. Contractor Signage for Projects with Equipment Onsite Eight (8) Days or Longer

1.17.9.1. Who does the In-Use Off-Road Regulation Apply to?

The In-Use Off-Road Regulation (Off-Road Regulation) applies to all self-propelled off-road diesel vehicles 25 horsepower or greater and most two-engine vehicles (except on-road two-engine sweepers) owned or operated in California. This includes vehicles that are rented or leased (rental or leased fleets.

1.17.9.2. In-Use Off-Road Regulation Requirements

Idling Limit: Vehicles cannot idle longer than five minutes. There are exceptions for vehicles that need to idle to perform work.

Labeling: Vehicles must be labeled with a CARB assigned equipment identification number (EIN). The EIN shall be white on a red background, unless the vehicle is part of a captive attainment area fleet, in which case the EIN shall be white on a green background. The EIN shall be located in clear view on both sides of the outside of the vehicle.

1.17.9.3. How to Report Observed Noncompliance

If you have information regarding possible violations of the In-use Off-road Diesel Regulation, fill out a complaint form at https://calepacomplaints.secure.force.com/complaints/Complaint, or email dieselcomplaints@arb.ca.gov the following information:

1. The name of the party that is responsible for the vehicle that was observed to be noncompliant.

2. The Business’s name.

3. The job site location (including address, city, and Zip, or coordinates.

4. The following information for the vehicle you observed to be noncompliant:

a. EIN, if observed,

b. A description of the vehicle type if the EIN is unknown; and

c. Photos of the vehicle, where possible; and

5. A description of the noncompliance you observed.

1.18. PWS Exhibits

The exhibits listed below are attached to and incorporated into this PWS.

Exhibit 1 Performance Requirements Summary (PRS). The purpose of the PRS is to communicate the Government’s quality expectations and the process to evaluate the Contractor’s performance.

Exhibit 2 Contract Discrepancy Report (CDR)

2. Scope of Work

Contractor shall provide qualified, trained, skilled personnel for the KY1A bushing replacement.

See Exhibit 3 for name plate information. See Exhibit 4, 5, 6, and 7 for pictures of unit. See Exhibit 8 for oil test report.

2.1. Bushing Replacement

2.1.1. Perform visual inspection of all external tank walls, accessories, and components.

Note any oil leaks, damage, paint finish issues, missing components, etc. WAPA will be advised immediately of any concerns or unusual findings.

2.1.2. Drain approximately 8,455 UG oil from the transformer into storage container (Frac Tank). Displace oil using Contractor provided dry air. Oil stored in the Frac Tank shall be properly labeled during the work.

2.1.3. Circulate the oil from the frac tank in a closed-loop fashion through the Contractor’s oil processing trailer. Oil shall be heated, degassed and dehydrated. A total of three (3) passes of nameplate volume of oil shall be performed.

2.1.4. Perform insulation power factor and capacitance tests on the following WAPA provided bushings:

2.1.4.1. Qty (1) – X0 Bushing

2.1.4.2. Qty (3) – Y1/Y2/Y3 Bushings

2.1.5. Remove Qty (4) existing bushings delineated above and install Qty (4) new bushings and bushings flange gaskets, provided by WAPA.

2.1.6. Pull vacuum for 24 hours (230kV Voltage Class).

2.1.7. Vacuum-fill transformer using original oil. Prior to entering the transformer, the oil shall be heated, filtered, degassed, and dehydrated. The oil exiting the Contractor’s oil processor shall have a temperature between 50C and 75C. During the filling operation, the oil dielectric strength shall be maintained above 30kV average, using the ASTM D1816 method, 1mm gap, average of five (5) samples. The moisture in the oil during the filling operation shall be monitored and maintained below 5ppm.

2.1.8. Perform As Left testing as outlined below per Contractor’s standard practice. All testing to be performed on the As-Found tap position only.

2.1.8.1. Turns ratio (TTR)

2.1.8.2. Power factor and capacitance of overall insulation and condenser bushings

2.1.8.3. Hot collar tests on all non-condenser bushings

2.1.8.4. Excitation current at 10KV equivalent

2.1.8.5. Insulation resistance of all windings

2.1.8.6. Winding resistance, low and high voltage winding

2.1.8.7. Core to ground insulation resistance (if accessible)

2.1.8.8. Oil dielectric strength, tested at site, using the ASTM D1816 Method, 1mm gap

2.1.8.9. Dissolved Gas Analysis (DGA) and 8-Part Analysis of oil

2.1.9. Pack up the work area and demobilize from the site.

2.1.10. Contractor will provide the following:

2.1.10.1. Vacuum Oil Processing (VOP) Trailer

2.1.10.2. Crane with Operator

2.1.10.3. Generator and Fuel to run Vacuum Oil Processing Trailer (VOP)

2.1.10.4. Forklift

2.1.10.5. Telescopic Boom Truck

2.1.10.6. Oil Containment

2.1.10.7. Oil Storage

2.1.10.8. Dry Air

2.1.10.9. Gaskets, Cut to Suit

2.1.10.10. O-rings

2.1.10.11. 110 UG Top Off Oil

2.2. WAPA Responsibilities

2.2.1. A report of PCB concentration and DGA (dissolved combustible gas in oil) must be provided to Contractor at the time of WAPA’s PO for services is provided to Contractor and at least one week prior to the start of any work operations. This proposal is based on the oil having a PCB content of “non-detectable” (0ppm) and unless otherwise stated, the proposal is based low levels (maximum concentration per Condition 2 of IEEE C57.104, Table 1) of combustible gas being present in the main tank and LTC oil. WAPA will incur additional costs if any oil has a detectable PCB content. In the event the PCB concentration is detectable or if the combustible gas concentration is deemed excessive, Contractor reserves the right to decline any or all portions of the work quoted. The PCB laboratory report must be dated within (90) days from the start of work being performed by the Contractor. The DGA laboratory report must be dated after any failure or no older than 30-days from the date of the transformer service is to be performed.

2.2.2. Prior to Contractor arriving at site, WAPA will isolate all bushings from the power system. Disconnect all lines, bus and flexible links terminating on all bushings to allow Contractor to perform the quoted work. Provide clearances from Contractor work areas to nearby live electrical lines/equipment as mandated by OSHA and other agency requirements. Remove all sources of AC and DC control and alarm power. As deemed necessary by Contractor, remove sections of bus duct and associated transition compartments to allow Contractor to perform the quoted work scope. As necessary, short all CT secondary leads. Apply suitable grounds to all lines and bus. Apply “Lock-Out Tag-Out” techniques as necessary to insure a safe environment for Contractor personnel. Isolate and apply LOTO as required to the deluge system. An isolation valve shall be closed and locked, to assure no water flow from the deluge system due to accidental operation. As necessary, disassemble deluge system prior to Contractor arriving at site, to allow Contractor to perform the specified work scope.

Reconnect deluge system after completion of Contractor work scope. Contractor’s offering does not include any services to the deluge system. As deemed necessary by Contractor, provide, and install equipment grounding conductors of adequate size to the Contractor oil processing trailer, cranes, booms, tankers, etc. Restore transformer and site to original condition after Contractor has completed work operations.

"Tenting and warming" of the transformer for dew point tests in very cold weather are excluded from this scope unless explicitly stated elsewhere. As applicable, provide support to Contractor crews at night, including adequate lighting, etc. As deemed appropriate by Contractor, allow Contractor to enter the transformer as necessary by treating specific internal work areas as a non-permit confined space, thus not requiring a confined space rescue team to be at site during these work times.

2.2.3. Dispose of all waste (liquid and solid) generated by Contractor during all onsite work operations. If necessary, provide waste containers for Contractor’s use. Both open-top and closed-top 55-gallon drums are recommended for waste disposal.

2.2.4. Provide power: 120V, 20A, 1-phase, within 20ft of transformer.

2.2.5. Provide restroom and wash facility for Contractor crew, within 100ft of work location.

2.2.6. Provide a qualified safety person at site for all quoted work activity. Qualified safety person must be trained and certified in first aid, AED, and CPR and have immediate access to remote emergency services via a local cell or land phone connection. If Contractor is performing work on a 24-hour per day basis or a 7-day per week basis, appropriate WAPA-provided safety personnel must be provided to night-time work and weekends.

2.2.7. As deemed necessary by Contractor, remove, or modify all fencing, posts, cables, bus ducts, deluge systems and other structures as required to allow Contractor to perform the quoted work scope. Reinstall these structures after Contractor has completed the quoted work scope. Unless explicitly mentioned elsewhere in this quotation, Contractor is neither providing nor responsible for any modifications to the WAPA property (land, buildings, bridges, rail tracks, structures, roads, etc.) as related to the performance of the quoted work scope, including testing of the transformer, removal and installation, modifications to the transformer, etc. Contractor’s quotation is based on WAPA’s land being suitable for the loads that are normally experienced during the lifting and handling of large transformers. As deemed necessary by Contractor, remove, or relocate earth and snow, modify grades, etc., to allow the quoted work scope to be performed. In addition, compact ground soil, strengthen bridges, rail tracks, etc., to allow the quoted work scope to be performed.

2.2.8. Allow Contractor to locate oil processing trailer (53ft) with 20ft of the transformer. If applicable, allow Contractor to locate oil storage tanker (48ft) within 50ft of the transformer. Contractor may be able to locate the oil processing trailer farther away.

Contractor can possibly provide an alternate method of oil storage which will allow the storage container(s) to be located closer to the transformer. These alternate methods may result in additional costs to the WAPA.

2.2.9. Allow Contractor to ship materials and tools directly to WAPA’s site, at WAPA’s receiving dock. As necessary, relocate Contractor’s supplies from WAPA’s receiving dock to the work area. After the completion of Contractor's work scope, relocate Contractor tooling back to WAPA's shipping dock. Load Contractor’s supplies on Contractor's truck, at WAPA's dock.

2.2.10. WAPA will provide adequate "soak" time between the completion of Contractor's quoted repairs and the energization of the transformer at rated voltage, as required by the original transformer manufacturer (OEM). This time is required to allow the insulating oil to soak back into the paper and other solid insulation.

2.2.11. Provide accurate as-built electrical schematics, elementary diagrams, nameplate and outline drawing and instruction books as necessary to allow Contractor to perform the quoted work scope. All documents will be provided to Contractor at least 1 week prior to arriving at site to begin the quoted work scope.

2.2.12. Provide recent historical test data to Contractor at least 1 week prior to Contractor arriving at site to perform testing. Data should reflect the same tests as those being performed by Contractor during this project.

2.2.13. Supply suitable compacted, free, clear, and unrestricted access to route, roads, site, and area around foundation for movement of Contractor’s equipment and personnel.

EXHIBIT 1

PERFORMANCE REQUIREMENTS SUMMARY (PRS)

Trinity KY1A Bushing Replacement January 2026

PWS

Section Contract

Requirement Performance

Standard

Acceptable Quality Level

(AQL)

Method of Gov

Surveillance

Frequency of Surveillance

Performance Rating Scale

Incentive (+ and/or -)

1.17 &

2.1.2 Drain

Drain & fill Transformer while complying with the Environmental requirements

No violations 100%

Inspections

Per Transformer

Exceptional Very Good Satisfactory

Marginal Unsatisfactory

N/A

2.1.3 Circulate Oil

Circulate oil 3x volume with heat, degas and dehydrate.

No violations

Satisfactory

Marginal Unsatisfactory

N/A

2.1.5

Replace bushings

(WAPA

supplied bushings)

Install new bushings to manufacturers specification.

No violations

Satisfactory

Marginal Unsatisfactory

N/A

2.1.7 Vacuum fill

Perform vacuum fill to manufacturers specification.

No violations

Satisfactory

Marginal Unsatisfactory

N/A

2.1.4 2.1.8

Pre & Post electrical testing

Pass all electrical testing to manufacturers specification.

No violations

Satisfactory

Marginal Unsatisfactory

N/A

2.1 Labor and

Parts

Perform all labor and deliver all parts. No violations

Satisfactory

Marginal Unsatisfactory

N/A

EXHIBIT 2

Contract Discrepancy Report

Contract No. 1. Report No. for this Discrepancy:

Contractor’s Name:

2. From: (Name of Contracting Officer representative)

Dates

3. Prepared:

4. Returned by Contractor:

5. Action Complete:

6. Discrepancy or Problem: (Describe in detail; include reference to PWS directive; attach continuation sheet, if necessary):

Signature of CO:

7. To: (Contracting Officer)

8. From: (Contractor)

9. Contractor Response as to Cause, Corrective Action and Actions to Prevent Recurrence (Attach Continuation Sheet if Necessary)

10. Signature of Contractor Representative:

Date:

11. Government Evaluation:

12. Government Actions:

13 Close Out Name Title Signature Date

(13a) Contractor Notified

(13b) COR

(13c) CO