PERFORMANCE WORK STATEMENT

FOR

SEPTIC TANK AND SEWAGE SERVICES

TREATMENT PLANT MAINTENANCE SERVICES

Defenses Communication Detachment Okinawa (DCDO)

Kadena Air Base, Japan 06 October 2026

PWS Review by: CO/CA/CS _____________________Date:

Final Review: QAPC ______________________ Date:

1. GENERAL INFORMATION

1.1. SCOPE OF WORK. The contractor will provide all personnel, equipment, tools, materials, supervision, and other items and services necessary to perform Septic Tank and Sewage Treatment Plant Maintenance Services as defined in this Performance Work Statement (PWS) at DCDO, Okinawa, Japan. The contractor will perform to the standards in this contract.

The estimated quantities of work are listed in Section 3, Specific Tasks.

1.1.1. The contractor will provide a quarterly report for all work accomplished. This report will be submitted to DCDO's QI at building 2940A 2F, Public Works Office

1.2. SECURITY REQUIREMENTS. All Contractor employees will obtain the required employee and vehicle passes. The Government will issue badges without charge.

1.2.1. The following special requirements are for work within the fenced operations compound:

1.2.2. Access List. The contractor must furnish an access list to DCDO's Quality Inspector (QI) at least one week prior to starting work. The list will be prepared and submitted in accordance with Section 3. The access list must be on the contractor's letterhead and will include:

1.2.2.1. The contract number, title and completion date.

1.2.2.2. The name and date of birth of each person who will require access to the fenced operations compound during the contract.

1.2.3. ID check. Each worker will be required to present picture identification to the security guard when entering the fenced operations compound. Each ID card will be compared with the access list. The ID card must have the person's picture, name and date of birth.

1.2.4. Vehicles. Only work vehicles required to bring materials to the job site will be permitted to park within the compound. Personally owned vehicles will not be permitted to enter. The following information is required as a minimum:

a) Vehicle make, model, color, year, license number, intended use and registered owner.

b) A signed statement, by the vehicle owner, that all required insurance has been purchased and will be valid during the entire contract period.

1.2.5. Availability of buildings. The job site will be made available to the contractor only for the length of time required to expeditiously complete the work.

1.2.6. Neither the Contractor nor any of its employees shall disclose or cause to be disseminated any information concerning the operations of the activity which could result in or increase the likelihood of the possibility of a breach of the activity's security or interrupt the continuity of its operations.

1.2.7. Any possible contact with classified information as a result of this contract shall be reported to the QI.

1.2.8. Disclosure of information to any person not entitled to receive it, or failure to safeguard any classified information that may come to the contractor or any person under his control, may subject the contractor, it's agents or employees to criminal liability under 18 U.S.C. Sections 793 and 798.

1.2.9. All inquiries, comments or complaints arising from any matter observed, experienced or learned as a result for in connection with the performance of this contract, the resolution of which may require the dissemination of official information, will be directed to the Functional Area Chief (FAC).

1.2.10. Violations of any of the above provisions will, in addition with all other criminal and civil remedies, subject the contractor to immediate termination for default.

1.2.11. ID Passes, Badges and Vehicle Stickers: Security and base access requirements are contained in clause 5352.242-9000 “Contractor Access to Air Force Installations.” Contractor employees will be required to obtain and display identification badges. Anticipate delays in getting commercial vehicles on base and allow time for commercial vehicles to reach their destination by driving designated routes at posted speed limits throughout the base. Procedures for commercial vehicle access to the base are subject to change without prior notice. The contractor is responsible for obtaining such clearances and/or passes as required for his/her employees to enter military installations on Okinawa prior to start of work. The contractor shall be responsible for all passes issued to his/her employees under this contract. Applications shall be coordinated through the Contracting Officer or designated representative. At the time of application, Security Forces may conduct a background check on employees. Upon termination of employment, the contractor shall be responsible for returning identification cards and base passes to Security Forces within 24 hours.

1.3. HOURS OF OPERATION.

1.3.1. Normal Hours of Operation. The contractor shall perform the services required under this contract during the following hours: Normal Hours of Operation. The contractor shall perform all services required under this contract during the following hours: Monday through Friday,0730 to 1630 hours, except for the federal holidays.

1.3.1.1.Holidays. The contractor is not required to provide service, except as noted on the following days:

1 January Third Monday of January Third Monday of February Last Monday of May 19 June 4 July

New Year's Day* Martin Luther King Jr. Birthday President's Day Memorial Day Juneteenth* Independence Day*

First Monday of September Second Monday of October 11 November Fourth Thursday 25 December

Labor Day Columbus Day Veterans Day* Thanksgiving Day Christmas Day*

*If holiday falls on a Saturday, it will be observed on the preceding Friday. If it falls on a

Sunday it will be observed on the following Monday.

Other than on holidays noted above, the contractor may work, with prior approval of the Contracting Officer, extended hours to ensure timely completion of work at no additional cost to the government.

2.1 GENERAL DEFINITIONS:

2.1.1 Functional Area Chief (FAC). The individual responsible for a functional area.

2.1.2 Functional Area. The organization responsible for the actual performance of a given service whether performed in-house or by contract.

2.1.3 Defective Service. A service output that does not meet the standard of performance specified in the contract for that service.

2.1.4 Performance Requirement (PR). The point that divides acceptable and unacceptable performance of a task according to the Performance Requirements Summary and the Inspection of Services clause. It is the number of defectives or maximum percent defective in the lot that is deemed acceptable. Any further defectives will require the government to affect the price computation system.

2.1.5 Quality Assurance (QA). A planned and systematic pattern of all actions necessary to provide confidence that adequate technical requirements are established; products and services conform to established technical requirements; and satisfactory performance is achieved. For purposes of this manual, quality assurance refers to actions by the government.

2.1.6 Quality Inspector (QI). A functionally qualified person who performs quality assurance functions for a contracted service.

2.2 TECHNICAL DEFINITIONS.

2.2.1 Check. The act required to determine if a setting or tolerance is within applicable specifications; also includes correcting an out of tolerance situation, whether by resetting or replacement.

3. SPECIFIC TASKS

3.1 GENERAL INFORMATION. The contractor will provide all personnel, equipment, tools, materials, supervision, and other items and services necessary to perform Septic Tank and Sewage Treatment Plant Maintenance Services as defined in this Performance Work Statement (PWS) at DCDO. The contractor will perform to the standards in this contract. The estimated quantities of work are listed in Section 3.3, Recurring Inspection and Testing.

3.1.1 Services. The Contractor will provide, at the frequencies indicated, maintenance and repair to the specific septic tank and sewage treatment plant systems identified in Section 3.3.

The Contractor is responsible for maintaining these items to the standards established herein. The Contractor will be responsible for management of the total maintenance effort.

3.1.2 Repair and Replacement Parts. Only new standard parts or parts of equal quality shall be used for repairs. Parts which have been replaced will become the property of the Government.

Contractor will return all replaced defective parts to the QI identified in paragraph 2.1.5 unless the removed parts are used for trade-in as authorized by the Contracting Officer or his designated representative. The contractor shall repair or replace locally procurable defective parts found during inspection within 24 hours. Parts that cannot be obtained locally will be replaced within two weeks.

3.1.3 Routine Service Calls. The contractor will receive routine service call requests for repairs from the QI, or the designated representative, and will respond to these calls within twenty-four hours. These calls will be placed on a work order request and will be either picked up by the contractor's representative at building 2940A, DCDO, or will be delivered to the Contractor's representative by the QCI. A sample work order request (WOR) is shown as technical exhibit 2.

Normal repairs up to a maximum of ¥25,000 will be completed within fifteen (15) working days upon receipt of the work order request (Subject to the reimbursement provisions in Section 3.3.8.).

3.1.4 Contractor personnel directly engaged in the operation and maintenance of Septic Tank and Sewage Treatment Plant Maintenance Services must possess all required certifications and must be considered as certified Plant operators approved by the Government of Japan (GOJ) Ministry of Public Health and Welfare. These certificates shall be submitted to the CO for verification prior to award of this contract.

3.2 PREVENTIVE MAINTENANCE. The contractor will be responsible for implementing an effective and efficient Preventive Maintenance Inspection and Service program (PMIS) for Septic Tank and Sewage Treatment Plant systems. The primary objective of the PMIS is to maximize useful life of systems and equipment and minimize costly breakdown repairs. PMIS is the examination, lubrication, minor adjustment, and minor repair of equipment systems. PMIS is concerned primarily with equipment and systems that, if disabled, would interfere with essential operations, endanger life and/or property, or involve high cost or long lead-time for replacement.

Equipment and systems breakdown will be reported immediately to the QI or his designated representative.

3.2.1. The contractor will complete a comprehensive inventory of all Septic and Sewage systems within 30 days after contract award.

3.2.2 The contractor will obtain appropriate manufacturers operational and maintenance manuals to determine routine maintenance inspection/service requirements.

3.2.3 Within 30 days from the contract award date the contractor will provide the CO through QI for approval, a written six-month schedule for performing preventive maintenance inspections. The approved monthly schedule will be strictly adhered to unless otherwise authorized by the CO.

3.2.4 General Requirements. The following general requirements are applicable to the specific PMIS program requirements contained in Section 3.3.

3.3 DCDO Septic Tank System. RECURRING INSPECTION AND

TESTING.

3.3.1 Septic Tank Anaerobic Filter Bed

3.3.1.1 Quarterly

1. Sludge and Scum Accumulation Condition

a. Check the thickness of scum: If scum builds up in large quantities up to the bottom of the influent pipe or is generated to the extent that it obscures the top of the filter bed, it will obstruct the proper flow inside the tank and cause performance to deteriorate.

b. Check the sludge accumulation on the bottom from the transfer pipe. If the accumulated sludge has reached the bottom from the transfer pipe, it is time to clean the tank.

c. Since waste oil and larger solid particles, etc. are found in abnormally large quantities, the purification performance, particularly that of the contact aeration chamber, will be adversely affected, so vacuum out the tank and clean it as quickly as possible.

2. Condition of Influent Pipe, Transfer Pipe

a. Check if larger solid particles are clogging up the inside of the pipe. If the tank is being clogged up remove the obstructing matter.

b. Check if larger solid particles, such as pieces of paper, are being transferred from the transfer pipe during influx. If they are being transferred, then it is time to clean the tank.

c. Check if the water level is rising above the top water level limit during peak influx, and whether there are marks of the water level being abnormally high. If an abnormally high water level mark can be seen, the filter medium is clogged up, so clean it.

3. Generation of Odors and Flies

a. A large volume of scum is a cause of bad odors, so remove it quickly.

b. Mosquitoes and flies are also prolific if scum accumulates, so take measures quickly, especially during the summer.

3.3.1.2 Annually: Vacuum out the sludge and clean.

3.3.2 Septic Tank Contact Aeration Chamber

3.3.2.1 Quarterly

1. Adhesion of Sludge to the Contact Media.

a. Observe the condition of adhesion of sludge to the contact media, and the color of the sludge, and if there is any foreign matter, investigate the cause and correct the situation.

b. Measure the SS concentration and the SV value, check whether the contact media are blocked off and carry outback washing if necessary. Sludge which sloughs off and floats free from back washing should be returned to the No.1 anaerobic filter bed chamber by the sludge transport equipment.

2. Flow inside the Tank

Observe the flow and the uniformity of aeration, and if there are any abnormalities such as aeration on one side only, correct the position of the diffuser, clean the diffuser pipe and adjust the air flow volume by the aeration valve.

3. Inspection of the Diffuser

a. The diffuser is provided to supply oxygen to aerobic microorganisms and agitation inside the chamber. Check if the air is being fed normally and if agitation is uniform within the chamber.

b. The diffuser pipe can be removed, so clean it periodically and make sure the appropriate amount of diffusion is carried out.

c. If aeration is weak even though the diffuser pipe is cleaned, replace the diffuser pipe.

4. Measuring the pH

Normally, the pH should be about7.0. If it is 8.0 or higher, it could be that there is insufficient air, and if it is 6.0 or lower, it could be that there is too much aeration.

5. Measuring the Dissolved Oxygen Concentration (DO): Make sure that the DO value at the top, middle and bottom of the contact media is virtually the same concentration. If the concentration is virtually the same, it can be judged that there is no clogging.

6. Transport Condition of Fluid inside Chamber

Use the following procedure to adjust and confirm that the appropriate volume of fluid from the chamber is being transported to the No1 anaerobic filter bedchamber by the sludge transport equipment.

a. Remove any fouling which are adhering to the weir of the sludge transport equipment.

b. Raise the transport side weir until it is fully closed so that the total volume is transported.

c. Adjust the air lift pump valve and set the weir on the sludge transport equipment's transport side so that it is slightly higher than the water level for the proper water level volume. (Be careful not to let the water volume become too great.)

d. Lower the transport side weir gradually and adjust the transport side weir's water level.

e. The proper transport volume will vary depending on the load conditions, so increase or decrease it as necessary.

7. Determining the Backwashing Interval

Determine the backwashing interval by the following criteria.

a. If you can see suspended sludge of a blackish color in the spiral flow in the contact aeration chamber. {Sludge is being sloughed off.)

b. If the water level rises abnormally high on the contact media inside the contact aeration chamber. (The contact media are becoming clogged and are obstructing the aeration spiral flow.)

c. If the effluent water quality is worsening even if no particular abnormalities can be seen in the water flowing in from the anaerobic filter bed chamber. (The contact media are becoming clogged and blockage is occurring.)

d. If scum is being generated in the sedimentation chamber. {Sloughing is advancing and anaerobic breakdown is occurring on the bottom of the sedimentation chamber.)

8. Back washing Method and Sludge Transport

a. Open one of the backwashing valves.

b. Close the aeration valve. Air will spray out of the backwashing pipe and backwashing will begin. Normally, backwashing for 2~3 minutes is sufficient.

c. Open the other backwashing valve and close the first valve. Backwashing in the opposite direction will begin. In the same way, perform backwashing for 2~3 minutes.

d. It is effective to repeat the operation in c. 2~3 times.

e. When backwashing is completed, open the aeration valve and close the backwashing valve.

9. Transport of Sloughed Sludge Part1 If you are operating the sludge transport equipment all the time, sloughed sludge is transported automatically, so this operation is not particularly necessary. Adjust the transport volume.

10. Transport of Sloughed Sludge Part2

If the sludge transport equipment is not operating constantly, transport of sloughed sludge is necessary.

a. Switch off the aeration's power and let the contact aeration chamber sit quietly for about 10 minutes.

b. Close the transport side weir of the sludge transport equipment fully. Open the air lift pump valve and the air escape valve and turn on the blower's power.

c. Gradually close the air escape valve, increasing the volume of air fed to the air lift pump.

d. Keep the air escape valve closed until the volume of sludge being transported is appropriate and the sludge that has sediment on the bottom of the contact aeration chamber has been transported to the anaerobic filter bed chamber. Sludge transport usually takes approximately 3 minutes.

e. When there is a lot of settled sludge, can be effectively transported by repeating the operation in a.~ d. 2~3times.

f. Open the aeration valve and close the air lift pump valve. Adjust the air escape valve to the appropriate level.

11. Blower

a. Check whether dust is adhering to the power plug and push the plug blades all the way in so the plug won't be loose. If dust is adhering to the plug and the connection is not perfect, it could cause electric shock or a fire.

b. Clean the intake side filter.

3.3.2.2 Annually

a. Replacement of the diffuser pipe.

b. Replace of consumables.

c. Replace of diaphragm.

NOTE: If periodic replacement of partis neglected, treatment performance will deteriorate or the blower Unit will be damaged and require replacement. Since consumable parts are made of special materials, please use genuine parts supplied by the manufacturer.

3.3.3 Septic Tank Sedimentation Chamber

3.3.3.1 Quarterly - Scum Generation Condition

If it is found that scum is being generated, use a ladle, etc. to scoop it up and return into the No.1 anaerobic filter bed chamber.

Overflow weir

Check if overflow is uniform. If it is not uniform, adjust the left and right ends of the overflow weir by hand.

3.3.4. Septic Tank Chlorination Chamber

3.3.4.1.Quarterly

Installation Condition of the Chemical Cylinder

a. Set the chemical cylinder in the correct position where it will be supported by the chemical cylinder support.

b. The amount of chemical dissolved can be adjusted by the number of turns of the chemical dissolution volume adjustment cap. The cap should be turned one full turn from the fully closed position. Turning it further will increase the amount of chemical dissolved.

3.3.5 Electric Control Panel

3.3.5.1 Quarterly

Check the switches and wiring for frays or deterioration. Repair any discrepancies as necessary.

3.3.6 DCDO SEPTIC, General Plant Condition

3.3.6.1 Semi-Annually

In conjunction with the quarterly maintenance inspections, remove all the rust from all metal surfaces. Apply one coat of under-coat paint on the exterior surfaces. Paint the interior surfaces with one coat of primer and one coat of finish paint. The paint should match the existing paint color.

3.3.7 Bldg.2940A Operation Compound's, Oil/Water Separator Tank

3.3.7.1 Annually

1. Drain and thoroughly clean, with a high-pressure water cleaner, the tank, pipes, and all other equipment within the tank. Properly dispose of foreign substances.

2. Clean and/or grease all the gate valves and components as needed.

3. Check for proper gate valve operation by closing and opening the valves.

3.3.8 GOVERNMENT REIMBURSABLE FOR ITEMS:

1. The contractor is responsible for cost of replacement parts up to ¥25,000 for any repair action or service. The Government will reimburse the contractor for cost of parts and materials above ¥25,000. For example, if parts cost is ¥30,000, the Government will reimburse the contractor ¥5,000. The contractor shall be reimbursed on the cost of parts and materials excluding labor cost. Labor costs for repair or replacement of parts are already included in the periodic (i.e.: monthly, quarterly, etc.) inspection and maintenance charges, Shipping charges will be included in cost of parts and materials and shall be documented to authorize reimbursement. Prior to removal of a part or component, the contractor shall show evidence or proof to the Quality Control Inspector (QCI) that the specific part or component is defective, damaged or beyond economical repair.

2. If the contractor estimates that the cost of reimbursable parts and materials for accomplishing service will exceed ¥100,000, a detail cost break down shall be submitted to the CO through the QI. If the contractor proceeds with work with reimbursable costs over ¥100,000 without CO's approval, it shall be at no cost to the Government.

3. The contractor shall bill for reimbursable parts each month. The contractor shall support billing by maintaining an itemized list of all reimbursable material used. The list shall include items, quantity, unit cost, and total cost. The contractor shall maintain original delivery tickets, sales slips or other documents identifying items purchased. The CO and QI may review and audit all purchase documents.

4. CONTRACTOR FURNISHED ITEMS AND SERVICES

4.1.GENERAL INFORMATION. Except for those items or services specifically stated in Section 3 as Government furnished, the contractor shall furnish everything needed to perform this contract according to all its terms.

4.2.MATERIALS. All contractor furnished materials used in maintenance, repair or replacement shall be of a quality equal to or better than the items to be replaced. Materials shall comply with the requirements of manufacture’s standard.

4.3.ACQUISITION. The contractor shall make all acquisitions at the best market prices available, delivery time and item usage factors considered, in such a timely manner as provided optimum material support of uninterrupted contract performance. The contractor shall maintain adequate records of all purchases made with a running balance of monetary amounts expended, for review and approval by the CO and QI.

4.4.WARRANTY. The contractor agrees to convey to the Government the same warranty against defective parts components he received from his supplier. The contractor shall submit warranty certificates, when obtained, to the QI or AF Form 1097 (Warranty/Guarantee Item), as provide by the QI, affixed to the warranted items

5. GOVERNMENT OBSERVATIONS.

Government personnel, other than contracting officers (COs) and CORS, may from time to time, with CO coordination, observe contractor operations. However, these personnel may not interfere with contractor performance or make any changes to the contract.

6. CONTINUATION OF ESSENTIAL DOD CONTRACTOR SERVICES DURING

CRISIS

IAW DoDI 3020.41, Operational Contract Support, paragraph 2.c, the Functional Commander or Director have determined that Septic Tank and Sewage Treatment Plant Maintenance Services is an essential service.

This service is determined to be non-essential for performance during crisis according to DODI 3020.41, Operational Contract Support, paragraph 2.c. In the event of crisis, the contractor will be notified by the Contracting Officer of the need to discontinue services due to contingency, base closure or other causes. If notification to discontinue services is not received, the contractor will be expected to continue performance in accordance with this PWS.

APPLICABLE PUBLICATIONS AND FORMS

Publications and forms that apply to the PWS are listed below. The publications and forms have been coded as mandatory or advisory. The contractor is obligated to follow those publications and use those forms as mandatory to the extent specified in other sections of PWS. The contractor shall be guided by those publications or use those forms coded advisory to the extent necessary to accomplish requirements in this PWS. The government at the start of the contract shall provide all publications and forms listed.

The government will provide follow-on requirements to the contractor when changes occur.

Supplements or amendments to listed publications from any organizational level may be issued during the life of contract. The contractor shall immediately implement those changes that result in a decrease or no change in the contract price and notify the contracting officer in writing of such change. Should a decrease in contract price result, the contractor shall provide a proposal for a reduction in the contract price to the contracting officer. Before implementing any change that will result in an increase in contract price, the contractor shall submit to the contracting officer a price proposal within 30 calendar days following receipt of the change by the contractor. The contracting officer and the contractor shall negotiate the change into the contract under the provisions of the contract clause entitled "Changes." Failure of the contractor to submit a price proposal within 30 calendar days following receipt of the change entitles the government to performance according to such change at no increase in contract price(unless the time requirement is waived by the contracting officer according to paragraph (c) of the Changes clause).

DOD 5500.7-R Joint Ethics Regulation

AF164-1DB/Section Policies Section C-1/Para 1.2.2.3

18 U.S.C./Section Disclosure of Information 793 & 798

DOD (JEGS) Environmental Protection updated 2024

TECHNICAL EXHIBIT - 1

LOCATION/EQUIPMENT LIST

AREA ROOM EQUIPMENT MFR MODEL

NO

SERIAL

NO

FREQ

DCDO OUTSIDE Septic Tank Anaerobic Filter Bed Chamber

Nishihara

NEO

Kogyo

Q, A

DCDO OUTSIDE Septic Tank Contact Aeration Chamber

Nishihara

NEO

Kogyo

Q, A

DCDO OUTSIDE Septic Tank Sedimentation Chamber

Nishihara

NEO

Kogyo

Q

DCDO OUTSIDE Septic Tank Chlorination Chamber

Nishihara

NEO

Kogyo

Q

DCDO OUTSIDE Flow Equalization Blower

Yasunaga Q, A

DCDO OUTSIDE Aeration Blower Yasunaga Q, A DCDO OUTSIDE Measurement Pump Turumi Q, A DCDO OUTSIDE Transportation Pump Turumi Q, A DCDO OUTSIDE Effluent Pump Turumi Q, A DCDO OUTSIDE Electric Control

Panel Q

DCDO 2940A Oil/Water Separator Tank

A

DCDO ALL General Plant Condition

S

TECHNICAL EXHIBIT - 2

WORK ORDER REQUEST

ROUTINE________

CALL NO. (FY)____________________

PICKED UP BY:____________________

EMERGENCY_________

DATE/TIME ISSUED______________

DATE/TIME PICKED UP____________

REQUIRED COMPLETION DATE: _____________________________

DESCRIPTION OF SERVICE:

CONTRACTOR'S ESTIMATED COST:

GOVERNMENT'S ESTIMATED COST:

WORK REQUESTOR & DATE