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SEE CONTINUATION

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W912WJ26QA086 14 APR 2026

JENNIFER SAMELA

978-318-8324

29 APR 2026

02:00 PM

W912WJ 100

W2SD ENDIST NEW ENGLAND

KO CONTRACTING DIVISION, 696 VIRGINIA ROAD

CONCORD, MA 01742-2751

UNITED STATES

JENNIFER SAMELA, EMAIL: JENNIFER.M.SAMELA@USACE.ARMY.MIL

TELEPHONE: 978-318-8324

541990

USD 19,500,000.00

SEE SCHEDULE

Continuation of Supplies or Services and Prices/Costs

Additional Information/Notes

Item Supplies/Service Quantity Unit Unit Price

Amount

0001 Buffumville Lake Permit Application Coordination & Aquatic Species Survey /Report Pricing Arrangement: Firm Fixed Price

1 Job

0002 Buffumville Lake Herbicide Treatment

0002AA Fluoridone Treatment: 21.52 acres Pricing Arrangement: Firm Fixed Price

1 Job

0002AB Diquat Dibromide Treatment: 2.7 acres Pricing Arrangement: Firm Fixed Price

1 Job

0003 Buffumville Lake Visual Survey and Chemical Efficacy Report Pricing Arrangement: Firm Fixed Price

1 Job

0004 Hodges Village Dam 3 mile River Survey /Report and Hand Removal of Water Chestnut Pricing Arrangement: Firm Fixed Price

1 Job

W912WJ26QA086

Continuation of Description

INTERESTED VENDORS SHALL REVIEW THE "ADDENDUM TO 52.212-1" AND "ADDENDUM

TO EVALUATION" FOR INSTRUCTIONS AND EVALUATION CRITERIA. VENDORS ARE

RESPONSIBLE FOR ENSURING THEIR QUOTE SUBMISSION MEETS ALL REQUIREMENTS.

FAILURE TO DO SO MAY RESULT IN QUOTES BEING DEEMED NON-RESPONSIVE AND

REMOVED FROM CONSIDERATION.

THE MANDATORY SOLICITATION SURVEY SHALL BE COMPLETED IN ITS ENTIRETY AND

RETURNED WITH QUOTES. FAILURE TO DO SO MAY RESULT IN QUOTES BEING DEEMED

NON-RESPONSIVE AND REMOVED FROM CONSIDERATION.

CONTROL OF AQUATIC INVASIVE PLANT SPECIES AND AQUATIC SURVEYS

U.S. ARMY CORPS OF ENGINEERS

BUFFUMVILLE LAKE & HODGES VILLAGE DAM

CHARLTON & OXFORD, MA

PERFORMANCE WORK STATEMENT

I. GENERAL:

1. Scope:

Furnish all materials, equipment, and labor necessary to apply a systematic aquatic herbicide to control Fanwort, Eurasian Milfoil, and Spiny Naiad in approximately 24.24 acres of Buffumville Lake. Granular Fluridone shall be the herbicide used to treat approximately 21.52 acres of Fanwort, split between two applications. Liquid Diquat Dibromide shall be the herbicide used to treat Spiny Naiad one time at the south end of the lake totaling approximately 2.72 acres. Furnish all labor and equipment necessary to conduct a full lake comprehensive invasive plant species survey with a detailed final report.

In addition, furnish all materials, equipment, and labor necessary to conduct a partial river, all inclusive, invasive aquatic plant species survey on approximately 3.3 river miles of the French River, from Greenbriar Park to Hodges Village Dam, as well as hand removal of all Water Chestnut found. A final comprehensive report and maps of the presence of all aquatic invasive plant species will be submitted.

The Contractor's work and responsibility shall include, but not be limited to, all job planning, programming, scheduling, administration, inspection, personnel, equipment, vehicles, fuel, materials, supplies, supervision, and quality control necessary to perform the services required in the following Performance Work Statement. Work shall be performed in a timely manner and to the satisfaction of the Project Manager or their representative.

*Note: This work requires the following submittals prior to commencement of work:

ENG Form 6293 (Accident Prevention Plan Worksheet)

Activity Hazard Analysis (AHA)

ENG Form 6282 (Site Safety and Health Officer Designation Letter)

First Aid/CPR Certifications

Safety Data Sheets (SDS) for all chemicals and/or products to be used on-site.

Documentation of at least 3 years' experience with aquatic chemical herbicide treatments

Current Commonwealth of Massachusetts Pesticide Applicator's License

Boat Operating Certifications U.S. Coast Guard Auxiliary, National Association of Safe Boating Law Administrators, or equivalent (if applicable) o Note: Use of motorized boat will require submission of float plan as part of the Accident Safety Plan.

Documentation indicating the Contractor has obtained any state approval required concerning rare and protected species as identified by MassWildlife's Natural Heritage and Endangered Species Program.

2. Location:

Buffumville Dam is a flood risk management project located on the Little River in Charlton, Massachusetts. The project office is located at 48 Old Oxford Road, Charlton, MA.

Hodges Village Dam is a flood risk management project located on the French River in Oxford, Massachusetts, located at 30 Howarth Road, Oxford MA.

3. Site Visits:

Contact the Technical Point of Contact to arrange a site visit. The Technical Point of Contact for this contract is Park Ranger Aidan Buck: (978)318-8692 or via email at aidan.j.buck@usace.army.

mil.

Interested vendors should conduct a site visit to confirm understanding of the scope, inspect existing conditions, and familiarize themselves with the site(s) prior to submitting a quote. No extra payment will be allowed for perceived additional work caused by unfamiliarity with site conditions and requirements.

4. Schedule:

The period of performance shall be from contract award to September 30, 2026. Work shall be performed Monday through Friday between the hours of 7:00 AM and 3:00 PM unless otherwise approved by the Technical Point of Contact. Any proposed changes to an approved schedule must be submitted to the Technical Point of Contact in writing and are not finalized until approved. No work shall be done on weekends or Federal holidays. The schedule for herbicide application will be determined by and must strictly adhere to the requirements set forth by the Commonwealth of Massachusetts.

All pre-work submittals shall be submitted within 21 days of contract award. The Government reserves up to 21 days for review and acceptance on each submittal/resubmittal from the date of receipt. If revisions are necessary to the submittals, the Contractor shall make such revisions and shall be resubmitted to the Government in an acceptable form within 14 days of the Government's response, unless additional time is granted by the Government in writing. No field work may proceed prior to the acceptance of pre-work submittals.

5. Safety:

a. General:

All work shall be conducted in accordance with the U.S. Army Corps of Engineers (USACE) Safety and Occupational Health Requirements (EM 385-1-1, most recent edition), and all applicable Occupational Safety and Health Administration (OSHA), federal, state, and local safety and health requirements. A copy of EM 385-1-1 can be accessed electronically at the following link:

https://www.publications.usace.army.mil/Portals/76/EM%20385-1-1%20_EFFECTIVE% 2015March2024.pdf

Project staff reserve the right to cease work at any time should the safety of employees, Contractors, and/or the public become jeopardized.

b. Accident Prevention Plan (APP):

The Contractor shall prepare a site-specific Accident Prevention Plan. The APP must be written by a Competent Person (CP) and document the specific work processes, equipment, materials to be used, hazards and applicable control measures.

The mandatory ENG Form 6293 (Accident Prevention Plan Worksheet) must be submitted and accepted prior to beginning on site work:

https://www.publications.usace.army.mil/Portals/76/Eng_Form_6293_2023Aug31.pdf

A preparatory meeting shall be conducted by the prime contractor to discuss the APP contents with all effected onsite employees. The Prime Contractor is responsible for informing the subcontractors of the safety provisions under the terms of the contract, the penalties for noncompliance, and inspecting subcontractor operations to ensure that accident prevention responsibilities are being carried out.

Daily safety meetings shall be held and documented. Records shall be available to the Technical Point of Contact upon request.

c. Activity Hazard Analysis (AHA):

An AHA shall be submitted and accepted for each definable feature of work (DFOW) in accordance with EM 385-1-1, Chapter 2-6. A DFOW is defined as any task, which is separate and distinct from other tasks, has separate control requirements, or is identified as different trades or disciplines. The AHA shall be continuously reviewed and revised to address changing site conditions as appropriate.

For a non-mandatory formatted outline of an AHA, see ENG Form 6206 (Activity Hazard Analysis) https://www.publications.usace.army.mil/Portals/76/Eng_Form_6206_2023Aug24.pdf

d. Site Safety and Health Officer (SSHO) Requirements:

The Contractor shall employ a minimum of one person to function as a Level 3, SSHO. A Level 3 SSHO is a designated Qualified Person (QP) or Competent Person (CP) with Safety and Occupational Health (SOH) responsibility that meets the requirements of EM 385-1-1, Chapter 2-3.

b and 2-4.b.

Level 3 SSHOs must have training, knowledge, and/or experience identifying hazards and implementing controls for the work being performed.

The SSHO shall be present at the project site and be responsible for overseeing the implementation of the prime contractor's SOH program. Contractor shall designate all SSHOs on a mandatory ENG Form 6282 (Site Safety and Health Officer Designation Letter):

https://www.publications.usace.army.mil/Portals/76/Eng_Form_6282_2023Aug28.pdf

e. First-Aid and CPR Personnel Requirements:

For shifts with multiple employees, provide at least two employees that are certified to administer First Aid and CPR. When employees work alone, they must be certified in First Aid and be provided an effective means of communication to call for assistance in the event of an emergency.

Minimum First Aid and CPR qualifications are outlined in EM 385-1-1, Table 2-1.

f. Additional Personnel Requirements:

Other Competent Person (CP) or Qualified Persons (QP) may be required per EM 385-1-1 and/or other sections of this Scope of Work, based on the definable features of work for this project.

g. Accident Reporting:

All accidents and near misses shall be investigated by the Contractor and reported to the Technical Point of Contact in accordance with EM 385-1-1, Table 2-1.

The mandatory ENG Form 3394 shall be completed and submitted to the Technical Point of Contact within seven (7) days of an incident: https://www.publications.usace.army.mil/Portals/76 /Publications/EngineerForms/Eng_Form_3394_2021Aug.pdf

h. Employee Exposure Data:

The Contractor shall electronically report total employee work hours (including subcontractors) to the Technical Point of Contact by close of business on the 10th calendar day of the following month.

6. Pre-Work Conference:

Prior to the start of any work, the Technical Point of Contact will schedule and conduct a pre-work conference. The Contractor's Project Manager and Quality Control Personnel shall be physically present at this meeting. The Contractor shall directly oversee all work on the project and the Project Manager and Quality Control Personnel shall have the authority to act on behalf of the Contractor. This conference will be held at the time and location agreeable to the Government and Contractor. No work may be performed under this contract prior to this conference. The purpose of the conference is to enable the Technical Point of Contact to outline the procedures that will be followed by the Government in its administration of the contract, and to discuss the performance that will be expected from the Contractor. This conference will allow the Contractor an opportunity to ask questions about the Government's administration and inspection of contract work or obtain other pertinent information that might be required. At the pre-work conference the Contractor shall provide the name of the project superintendent with a telephone number for project coordination.

The following is a general list of items for discussion during this pre-work conference:

Authority of the Technical Point of Contact

Contractor's Safety Program (including sub-contractors)

Accident Prevention Plan

Activity Hazard Analysis

Weekly Safety Meetings (Documented on NED Form 251)

Accident Reporting (ENG Form 3394)

Correspondence, Communication and Administrative Procedures

Invoice and payment

7. Permits:

The Contractor shall, without additional expense to the Government, be responsible for obtaining any necessary licenses, permits, and letters of certification. The Contractor shall comply with any applicable federal, state, county, and municipal laws, codes, and regulations in connection with the performance of the work specified under this contract.

8. Security:

The Contractor will comply with all established security policies at the project. Due to periods of heightened security that may affect the access to the areas covered under this contract, areas may be subject to periodic closures, which in turn may reduce or inhibit the Contractor's ability to access certain areas. During periods of heightened security, the Government reserves the right, at any time, to close any property or portion of property and reschedule and/or cancel any subsequent service in an area. The Contractor shall be given at least 24-hour notice of any such closure.

9. Payment:

Payment shall be made on a per task basis. After inspection and acceptance by the Government, the Contractor must submit an invoice to the Technical Point of Contact. The invoice shall include the invoice date, contract number, dates of service, description of work, quantities, and total amount due per line item. The invoice must also include the company letterhead, and this must match the data that is registered in the System for Award Management (SAM) registry.

For jobs greater than 30 days, the Contractor may request multiple payments. Payment shall be made for the actual services performed at the applicable contract unit price.

Invoices shall be sent (via mail or email) to the Technical Point of Contact, Aidan Buck:

U.S. Army Corps of Engineers

Buffumville Lake

48 Old Oxford Road

Charlton, MA 01507 aidan.j.buck@usace.army.mil

II. TECHNICAL

1. Submittals:

Although the Government reviews submissions required by this performance work statement, it is emphasized that the Contractor's work must be completed using proper internal controls and review procedures. The Government reserves up to 21 days for review and acceptance on each submittal/resubmittal from the date of receipt. If revisions are necessary to the submittals, the Contractor shall make such revisions and shall resubmit to the Government in acceptable form within 14 days of the Government's response, unless additional time is granted by the Government in writing.

The documents identified below must be prepared in accordance with the applicable standards, submitted to the Technical Point of Contact for review and accepted by the Government.

Pre-work submittals: Submitted within 21 days of contract award. Submittals must be accepted before the commencement of any field work.

ENG Form 6293 (Accident Prevention Plan Worksheet)

Activity Hazard Analysis (AHA)

ENG Form 6282 (Site Safety and Health Officer Designation Letter)

First Aid and CPR Certificates

Documentation indicating the Contractor has obtained any state approval required concerning rare and protected species as identified by MassWildlife's Natural Heritage and Endangered Species Program

State Pesticide Applicator's License - The Contractor will be required to submit verification that they are licensed as a Commonwealth of Massachusetts Authorized Applicator and is current and in good standing

Manufacturer Safety Data Sheets for chemicals used

Boat Operating Certifications U.S. Coast Guard Auxiliary, National Association of Safe Boating Law Administrators, or equivalent (if applicable) o Note: Use of motorized boat will require submission of float plan as part of the Accident Safety Plan.

Post-work submittals:

Lake & River Species Survey Report - Provide a detailed report with survey findings for both water bodies (Buffumville Lake and the French River at Hodges Village Dam) to include species name, acreage of infestation, and detailed maps with locations of species present.

Chemical Efficacy Report - A brief letter report discussing the efficacy of treatment measures and recommendations for future monitoring and control. This document may be sent electronically to the Technical Point of Contact.

Data Files - Geographic Information System shape file that shows the actual passes or spray zones of the treatment boats as recorded by a Global Positioning System (GPS) system. Data shall be submitted in .shp format for use in ArcGIS.

2. Required Personnel and Experience:

a. Contractor shall have sufficient personnel to adequately perform the tasks outlined in this performance work statement and meet the deadlines.

b. Contractor shall be a Commonwealth of Massachusetts Authorized Applicator, and the license must be current and in good standing.

c. Contract personnel must have at least 2 years of professional experience with GIS and be capable of producing high quality professional maps.

d. Contractor must have a minimum of 5 years of experience conducting aquatic herbicide treatments in Massachusetts and produce completed studies/surveys/plans of a similar scope.

e. Contractor must provide proof of qualifications and acceptable examples/samples of past similar scopes of work upon request.

3. Clean Up:

The Contractor shall practice good housekeeping to maintain a safe job site. The Contractor shall keep the work area, including any storage areas, free from the accumulation of waste materials.

Upon completing work in an area, the Contractor shall remove any tools, equipment, and materials that are not the property of the Government. Upon completion of work, the Contractor shall clean up the job site to the satisfaction of the Government.

4. Government Resources:

The Contractor is responsible for providing all materials to complete the project. Unless specified in the contract, the Government will not provide any equipment, telephone services or other resources.

5. Damage to Government and Private Property:

The Contractor shall be responsible for restoring any Government facilities or structures damaged as a result of the firm's operation. The Contractor shall also be responsible for any damage to private property or injury to any person as a result of the firm's operations. The Contractor shall notify the Technical Point of Contact immediately of damage to Government and private property and injury to any person resulting from the firms 'operation.

6. Omissions:

This contract may not cover all specified activities, steps, and procedures required to supply the contract product. In case of omission, the normal industry, state, or federal standards, practices, specifications, and/or guides shall prevail. In no instance shall an omission be reason to produce less than an acceptable product.

7. Quality Assurance:

The Contractor is responsible for the quality control of the contract work. The Government has the right to inspect and test all items called for by the contract, to the extent practicable at all times and at all places during the term of the contract.

8. Other Contracts:

The Government may undertake or award other contracts for additional work not related to this contract, and the Contractor shall fully cooperate with other Contractors and Government employees. The Contractor shall not commit or permit any act, which will interfere with the performance of work by another contractor, or by Government employees.

9. Environmental Protection:

Containers for excess and/or waste materials, rubbish, etc. shall be provided by the Contractor at the site, and the site will be inspected/ cleaned on a daily basis. No burning is permissible.

Water, air, and land resources shall not be adversely impacted during the course of the work.

Contractor will take necessary steps to ensure all federal, state, and local environmental regulatory requirements are met.

10. Receiving and Storing Materials:

The Contractor is responsible for protecting any stored material until it is placed in service. The Contractor is responsible for receiving and unloading of delivered goods. Government employees will not receive material or supplies for the Contractor and will not be responsible for damage to Contractor equipment or material.

11. Inspections:

a. Contractor Quality Control: The Contractor is responsible for establishing and maintaining an adequate quality control system to satisfactorily inspect and ensure that all work performed by the Contractor's organization in each separate service is in full compliance with this contract and the instructions, provisions, specifications, drawings, and maps herein.

b. General inspection: Upon the completion of each service requirement, the Contractor will perform an inspection of all areas under this contract to ensure compliance with the Performance Work Statement. The Contractor or their representative must be able to commit personnel, equipment, and resources to correct deficiencies.

c. Equipment/Supplies Inspections: The Technical Point of Contact may inspect required equipment and supplies at any time when in use on Government property. Any equipment found deficient shall be removed from service immediately until faulty conditions have been corrected and approved by Technical Point of Contact. No such removal will reduce the Contractor's obligation to perform all work required within the time scheduled under this contract. This requirement shall not be made the basis of claim for compensation or damages against The United Stats or any of its officers or agents.

Government Inspections:

The Government will monitor the Contractor's service performance and make deductions accordingly for work not corrected with the time permitted

III. SERVICE DESCRIPTION

Existing Conditions:

1. Buffumville Lake:

Buffumville Lake water surface is approximately 200 acres. During normal flow periods, water flows from the Little River at the north end and South Fork River at the south end into Buffumville Lake. Water continues from the lake out the dam and converges with the French River, 1.3 miles downstream in Oxford, Massachusetts. During high water events, flows held back by Buffumville Dam inundate both Government and easement lands around the lake. Flows are released as soon as possible.

Buffumville Lake Park and Boat Ramp are both heavily used recreation areas. Buffumville Park has a swimming beach, picnic areas and a picnic shelter that opens for the summer season on May 16, 2026. Treatment of Buffumville Lake includes areas surrounding the swimming beach.

Heavy infestations of Fanwort occur throughout the entire lake. Emphasis for control will focus on the following areas:

11.25 acres at the northwest portion of the lake (Area 1)

5.92 acres at the northeast portion of the lake (Area 2)

0.30 acres northwest of the swim area (Area 3)

1.89 acres northeast of the swim area (Area 4)

0.40 acres north of Buffumville inlet (Area 5)

1.21 acres west of the Buffumville inlet (Area 6)

0.55 acres south of the Buffumville inlet (Area 7)

Additionally, Spiny Naiad is present and shall be chemically treated in approximately 2.72 acres at the south end of the lake (Area 8). See attached maps for precise locations.

Each winter, from 2014-2025, the lake was drawn down to expose the aquatic plant root systems to cold temperatures. The drawdown appears to have been successful at slowing down the invasive aquatic weed growth rate.

In July of 2017, the following areas of the lake were treated with Diquat Dibromide: the north section of the lake located in and around the Buffumville Lake Park swimming area; the 4-8 feet water depth zone around the north end of the lake; the boat ramp on the south section of the lake.

The chemical treatment was largely successful in affecting the invasive weeds especially Milfoil.

Acres of large dead or dying mats of weeds were observed floating in the lake. The areas of treatment were mostly free and clear of weed growth.

In August of 2018, an additional 28 acres of the lake were treated with the chemical Sonar.

Treatment was done late in the year due to contract problems. Sonar was largely successful in killing off copious amounts of Fanwort in treatment areas.

In July of 2019, lake treatment of 31 acres was conducted and a second booster treatment was applied in September using Sonar. Itis apparent that the lake treatment program is successfully affecting the target species, Fanwort.

In August of 2020, lake treatment of 26 acres was conducted using chemical herbicide ProcellaCOR to primarily combat the presence of Variable Milfoil and Fanwort. In September a post-treatment survey was conducted confirming the ongoing presence of both target species in the lake. Additionally, it was discovered that there is a small area with emergence of a new invasive species, Spiny Naiad, which will require future treatment options using Diquat Dibromide in addition to whole lake plant surveys to assess new invasive plant growth and treatment of those additional emergent areas.

In June of 2021, lake treatment of 3.5 acres was conducted using liquid chemical Diquat to primarily combat the presence of Spiny Naiad. In September a post-treatment of Diquat was applied and a survey was conducted confirming that the initial treatment was effective, but some regrowth of the aquatic invasive species was present warranting an additional chemical treatment application. In August, lake survey and treatment of 16.5 acres was conducted using Clipper (Flumioxazin) to combat the presence of Fanwort. Treatment was delayed several times due to unusual seasonal flooding by which time the Fanwort was topped out and flowering throughout most of the treatment areas.

In July of 2022, lake treatment of 37 acres was conducted using a granular chemical herbicide Sonar treatment to primarily combat the presence of Fanwort. In July of 2022, lake treatment of 3 acres was conducted using a liquid chemical herbicide Diquat Dibromide to primarily combat the presence of Spiny Naiad. In August of 2022, an additional lake treatment of 37 acres using a granular chemical herbicide Sonar treatment to combat the presence of Fanwort. In August of 2022, a second additional lake treatment of 37 acres using a granular Sonar treatment, and a small amount of Clipper (Flumioxazin) to primarily combat the presence of Fanwort. In September of 2022, there was lake survey of 37 acres and treatment of 3.5 acres using liquid Diquat Dibromide to primarily combat the presence of Spiny Naiad.

In 2023, no treatment occurred.

In July of 2024, lake treatment of 22.3 acres of Fanwort and Eurasian Milfoil in targeted areas was treated using granular Sonar. In August of 2024, a booster treatment of the same 22.3 acres was conducted to ensure treatment success. An additional 2.7 acres of Spiny Naiad was treated using liquid Diquat Dibromide during this time. In September of 2024, a treatment efficacy survey was conducted showing a decrease in targeted vegetation populations.

In June of 2025, lake treatment of 32.25 acres of Fanwort and Eurasian Milfoil in target areas was treated using granular Sonar. In July of 2025, a booster treatment of the same 32.25 acres was conducted to ensure treatment success. An additional 2.7 acres of Spiny Naiad was treated using liquid Diquat Dibromide during this time. In September of 2025, a treatment efficacy survey was conducted showing a decrease in targeted vegetation populations.

2. Hodges Village Dam:

Hodges Village is a dry bed reservoir associated with a dam and dike system along the French River. The normal water level ranges from 1ft to 4ft during the dry summer months. During high water events, flows held back by Hodges Village Dam inundate both Government and easement lands around the dry bed reservoir. Flows are released as soon as possible. During a routine cleanout of the flood debris in front of the flood control gates, a water chestnut seed pod was seen floating down the river. A canoe launch is located at Greenbriar in North Oxford, MA and a take-out is located approximately 3.3 miles downstream at the dam.

In August of 2022, a river survey of 3.3 miles was conducted on the French River at Hodges Village Dam. The survey found two invasive aquatic vegetation species. The documented species include Variable Milfoil and Water Chestnut. Water Chestnut was identified in 9 locations and was removed by hand from the river.

In 2023, no survey or treatment occurred.

In August of 2024, a river survey of 3.3 miles was conducted on the French River at Hodges Village Dam. The survey found two invasive aquatic vegetation species. The documented species include Variable Milfoil and Water Chestnut. Water Chestnut was identified in seven (7) locations and was removed by hand from the river. Water Chestnut was found in trace (individual plants) to dense densities, only one (1) of the seven (7) known locations was deemed a dense population.

Contractor removed less than 50 plants total in all locations.

In July of 2025, a river survey of 3.3 miles was conducted on the French River at Hodges Village Dam. The survey found three invasive aquatic vegetation species. The documented species include Variable Milfoil, Purple Loosestrife, and Water Chestnut was found in thirteen (13) locations and was removed by hand from the river. Water Chestnut was fund in scarce to moderate densities. One large observation was identified towards Hodges Village Dam inlet.

Contractor removed the entirety of the water chestnut population.

3. Abutters:

USACE owns all the surrounding land in fee. A public drinking water well is present near the Buffumville Park work area. The well supplies water for the park attendants, who camp at the park May through September, and supplies water to the restrooms and water fountain at the swimming beach for the public. The well is approximately 1,200 feet from the nearest treatment area. Another drinking water well is located at the Buffumville Dam and Office site which supplies water for the Ranger Station and public restrooms. The well is approximately 400 feet from the nearest treatment area. There are private drinking water wells on land abutting the USACE property.

VI. EXECUTION:

1. Access:

Boat access to the work area at Buffumville Lake is provided via the U.S. Army Corps of Engineers Boat Ramp at 229B Oxford Road in Charlton, Massachusetts.

Boat access to the work area at Hodges Village Dam is provided via the U.S. Army Corps of Engineers Canoe Launch at Greenbriar Park, 591 Main Street, Oxford, Massachusetts.

2. Systemic Aquatic Herbicide Requirements:

Granular Fluridone shall be the herbicide used to treat approximately 21.52 acres of Fanwort and Eurasian Milfoil in target areas included in the attached map. Areas to be treated are #1-7 on the attached map.

Granular Fluridone shall be applied at a rate of 150 parts per billion (ppb) total, split between two separate applications, four weeks apart.

Liquide Diquat Dibromide shall be the herbicide used to treat the Spiny Naiad at the south end of the lake totaling approximately 2.7 acres. Area to be treated is #8 on the attached map.

Diquat Dibromide shall be applied at a rate of 1.5 gallons of liquid Diquat Dibromide per surface acre. This is a one-time treatment.

The Contractor shall apply an appropriate systemic aquatic herbicide to all treatment areas as shown on the attached map.

Herbicide application rates shall follow manufacturer's recommendations and accepted industry practice and be adequate to provide effective control within the target area.

3. Tasks:

a. Task 1 - Buffumville Lake Permit Application & Aquatic Invasive Species Survey and Report:

The U.S. Army Corps of Engineers Buffumville Lake is not a candidate to file a Notification of Intent with the Commonwealth of Massachusetts. However, the Contractor shall be responsible for obtaining any state approval required concerning rare and protected species as identified by MassWildlife's Natural Heritage and Endangered Species Program.

Contractor must conduct an entire lake (approximately 200 acres) aquatic invasive species survey at Buffumville Lake and report findings in a detailed report with survey findings to include species name, acreage of infestation, and detailed maps with locations of species present.

b. Task 2 - Buffumville Lake Herbicide Treatment:

Prior to any treatment, the Contractor is responsible for creating and posting signs adjacent to treatment areas and making the require notifications.

Signage must be highly visible to inform the public of treatment occurrences and information.

Locations required at a minimum to be posted but are not limited to are as follows.

o Buffumville Lake Project Office Kiosk

48 Old Oxford Road, Charlton MA 01507 o Buffumville Lake Park Entrance

229 Oxford Road, Charlton MA 01507 o Buffumville Lake Beach Kiosk

229 Oxford Road, Charlton MA 01507 o Buffumville Lake Boat Ramp Kiosk

229B Oxford Road, Charlton MA 01507 o Buffumville Lake Disc Golf Course Kiosk

230 Oxford Road, Charlton MA 01507 o Buffumville Like Little River Access

4 Fulling Mill Drive, Charlton MA 01507 o Buffumville Lake Gale Access Road Gate

93 Gale Road, Charlton MA 01507 o Buffumville Lake South Trail Access Point

82 Potter Village Road, Charlton MA 01507

The Contractor shall apply an appropriate systemic aquatic herbicide to all treatment areas as shown on the attached maps.

Herbicide applications shall be conducted as soon as possible after contract award in order to achieve the most effective control.

Herbicide application rates shall follow manufacturers' recommendation and accepted industry practice and be adequate to provided effective control within the target area shown on the attached maps.

o Granular Fluridone shall be applied at a rate of 150 parts per billion (ppb) total, split between two separate applications, four weeks apart.

o Liquid Diquat Dibromide shall be applied at a rate of 1.5 gallons per surface acre. The Diquat Dibromide is a one-time treatment.

A GPS system with at least 3-5-meter accuracy shall be used during the treatment to ensure even application of the herbicide. Should the presence of stumps inhibit or limit access to the full treatment area by a larger boat, the Contractor must also be equipped with either hoses to be able to spray the herbicide into zones targeted for treatment, and/ or smaller boat to access the full range of the indicated treatment areas shown on attached map.

Treatments cannot occur between the dates of June 22-26, 2026, due to boat training occurring on the lake.

The U.S. Army Corps of Engineers will be responsible for closing Buffumville Lake Park on the treatment dates. Dates of treatment shall be coordinated with the Technical Point of Contact.

c. Task 3 - Buffumville Lake Follow-Up Visual Survey and Chemical Efficacy Report:

The Contractor shall return to the treatment areas and conduct a visual survey to assess the success and efficacy of the chemical herbicide treatments 60 days after the initial application.

Contractor should provide a Chemical Efficacy Report, which is a brief letter report discussing the efficacy of treatment measures and recommendations for future monitoring and control. This document may be sent electronically to the Technical Point of Contact.

d. Task 4 - Hodges Village Dam Aquatic Invasive Species Survey and Report with Water Chestnut Removal:

Conduct an invasive aquatic plant species survey on approximately 3.3 miles of the French River, from Greenbriar Park to Hodges Village Dam. Contractor shall provide a detailed report with survey findings to include species name, acreage of infestation, and detailed maps with locations of species present. Contractor shall hand remove all Water Chestnut, ensuring roots and seed pods are removed to prevent regrowth while conducting survey. Removal of Water Chestnut plants shall take place during the months of June and/or July, specifically before the sharp nut-like seeds mature and drop in August. Water Chestnut shall be disposed of off property. There are thirteen

(13) known locations of water chestnut within the survey location.

ATTACHMENTS: Please refer to the attachments included with this solicitation for additional information.

*** END OF NARRATIVE ***

Requirements Control of Aquatic Invasive Plant Species and Aquatic Surveys, Buffumville Lake, Charlton, MA and Hodges Village Dam, Oxford, MA

Product Service Code : F105

0002AA

Product Service Code : F105

0002AB

Product Service Code : F105

Product Service Code : F105

Product Service Code : F105

Continuation of Deliveries or Performance

0001 1 JobQuantity

Address and POC Place of Performance DoDAAC: W912WJ

AIDAN JAME BUCK, DELIVER_TO_EMP_ID_NO

0002 Quantity

Address and POC Place of Performance DoDAAC: W912WJ

AIDAN JAME BUCK, DELIVER_TO_EMP_ID_NO

0003 1 JobQuantity

Address and POC Place of Performance DoDAAC: W912WJ

AIDAN JAME BUCK, DELIVER_TO_EMP_ID_NO

0004 1 JobQuantity

Address and POC Place of Performance

DoDAAC: W912WJ

AIDAN JAME BUCK, DELIVER_TO_EMP_ID_NO

Contract Clauses

FAR Clauses Incorporated by Reference

Number Title Effective Date

Alternate Deviation

Variation Effective Date

52.203-19 Prohibition on Requiring Certain Internal Confidentiality Agreements or Statements.

2017-01

52.204-13 System for Award Management- Maintenance. (Deviation 2026- O0038)

2026-02

52.209-6 Protecting the Government's Interest When Subcontracting With Contractors Debarred, Suspended, Proposed for Debarment, or Voluntarily Excluded. (Deviation 2026- O0038)

2026-02

52.212-4 Terms and Conditions- Commercial Products and Commercial Services. (Deviation 2026-O0038)

2026-02

52.219-6 Notice of Total Small Business Set-Aside. (Deviation 2026- O0038)

2026-02

52.222-36 Equal Opportunity for Workers with Disabilities. (Deviation 2026- O0038)

2026-02

52.222-41 Service Contract Labor Standards. (Deviation 2026- O0038)

2026-02

52.222-50 Combating Trafficking in Persons. (Deviation 2026-O0038)

2026-02

52.222-55 Minimum Wages for Contractor Workers Under Executive Order 14026. (Deviation 2026-O0038)

2026-02

52.222-62 Paid Sick Leave Under Executive Order 13706. (Deviation 2026- O0038)

2026-02

52.226-8 Encouraging Contractor Policies to Ban Text Messaging While Driving.

2024-05

52.232-33 Payment by Electronic Funds Transfer-System for Award Management.

2018-10

52.232-40 Providing Accelerated Payments to Small Business Subcontractors.

2023-03

52.233-3 Protest after Award. (Deviation 2026-O0038)

2026-02

52.233-4 Applicable Law for Breach of Contract Claim. (Deviation 2026- O0038)

2026-02

DFARS Clauses Incorporated by Reference

Number Title Effective Date

Alternate Deviation

Variation Effective Date

252.203-7000 Requirements Relating to 2011-09

Compensation of Former DoD Officials.

252.203-7002 Requirement to Inform Employees of Whistleblower Rights.

2022-12

252.204-7004 Antiterrorism Awareness Training for Contractors.

2023-01

252.204-7012 Safeguarding Covered Defense Information and Cyber Incident Reporting. (DEVIATION 2024-

O0013 REVISION 1)

2024-05 Deviation 2024- O0013

2024-05

252.204-7018 Prohibition on the Acquisition of Covered Defense Telecommunications Equipment or Services.

2023-01

252.204-7020 NIST SP 800-171 DoD Assessment Requirements.

2023-11

252.225-7056 Prohibition Regarding Business Operations with the Maduro Regime.

2023-01

252.225-7060 Prohibition on Certain Procurements from the Xinjiang Uyghur Autonomous Region.

2023-06

252.232-7003 Electronic Submission of Payment Requests and Receiving Reports.

2018-12

252.232-7010 Levies on Contract Payments. 2006-12

252.247-7023 Transportation of Supplies by Sea.

2024-10

FAR Clauses Incorporated by Full Text

Date

Alternate Deviation

Variation Effective Date

52.219-28 Postaward Small Business Program Rerepresentation.

(Deviation 2026-O0038)

2026-02

Postaward Small Business Program Rerepresentation (Feb 2026) (Deviation 2026-O0038)

(a) . As used in this clause-Definitions

Long-term contract means a contract of more than five years in duration, including options.

However, the term does not include contracts that exceed five years in duration because the period of performance has been extended for a cumulative period not to exceed six months under the clause at 52.217-8, Option to Extend Services, or other appropriate authority.

Small business concern-

(1) Means a concern, including its affiliates, that is independently owned and operated, not dominant in its field of operation, and qualified as a small business under the criteria in 13 CFR part 121 and the size standard in paragraph (c) of this clause.

(2) , as used in this definition, means business concerns, one of whom directly or Affiliates indirectly controls or has the power to control the others, or a third party or parties control or have the power to control the others. In determining whether affiliation exists, consideration is given to all appropriate factors including common ownership, common management, and contractual relationships. SBA determines affiliation based on the factors set forth at 13 CFR 121.103.

(b) If the Contractor represented that it was a small business concern, a small disadvantaged business concern, or a joint venture that was any of the small business concerns identified in 19.000(a)(3) prior to award of this contract, the Contractor shall rerepresent its size and socioeconomic status according to paragraph (e) of this clause or, if applicable, paragraph (g) of this clause, upon occurrence of any of the following:

(1) Within 30 days after execution of a novation agreement or within 30 days after modification of the contract to include this clause, if the novation agreement was executed prior to inclusion of this clause in the contract.

(2) Within 30 days after a merger or acquisition that does not require a novation or within 30 days after modification of the contract to include this clause, if the merger or acquisition occurred prior to inclusion of this clause in the contract.

(3) For long-term contracts-

(i) Within 60 to 120 days prior to the end of the fifth year of the contract; and

(ii) Within 60 to 120 days prior to the date specified in the contract for exercising any option thereafter.

(c) The Contractor shall rerepresent its size status in accordance with the size standard in effect at the time of this rerepresentation that corresponds to the North American Industry Classification System (NAICS) code(s) assigned to this contract. The small business size standard corresponding to this NAICS code(s) can be found at https://www.sba.gov/document /support--table-size-standards.

(d) The small business size standard for a Contractor providing an end item that it does not manufacture, process, or produce itself, for a contract other than a construction or service contract, is 500 employees, or 150 employees for information technology value-added resellers under NAICS code 541519, if the acquisition-

(1) Was set aside for small business and has a value above the simplified acquisition threshold;

(2) Used the HUBZone price evaluation preference regardless of dollar value, unless the Contractor waived the price evaluation preference; or

(3) Was an 8(a), HUBZone, service-disabled veteran-owned, economically disadvantaged women-owned, or women-owned small business set-aside or sole-source award regardless of dollar value.

(e) Except as provided in paragraph (g) of this clause, the Contractor shall make the representation(s) required by paragraph (b) of this clause by validating or updating all its representations in the Representations and Certifications section of the System for Award Management (SAM) and its other data in SAM, as necessary, to ensure that they reflect the Contractor's current status. The Contractor shall notify the contracting officer in writing within the timeframes specified in paragraph (b) of this clause, that the data have been validated or updated, and provide the date of the validation or update.

(f) If the Contractor represented that it was other than a small business concern prior to award of this contract, the Contractor may, but is not required to, take the actions required by paragraphs (e) or (g) of this clause.

(g) If the Contractor does not have representations and certifications in SAM, or does not have a representation in SAM for the NAICS code applicable to this contract, the Contractor is required to complete the following rerepresentation and submit it to the contracting office, along with the contract number and the date on which the rerepresentation was completed:

(1) The Contractor represents that it is, is not a small business concern under NAICS Code assigned to contract number .541990 W912WJ26PXXXX

(2) [Complete only if the Contractor represented itself as a small business concern in paragraph .] The Contractor represents that it is, is not, a small disadvantaged (g)(1) of this clause business concern as defined in .13 CFR 124.1001

(3) . The Women-owned small business (WOSB) joint venture eligible under the WOSB Program Contractor represents that it is, is not a joint venture that complies with the requirements of 13 CFR 127.506(a) through (c). [ The Contractor shall enter the name and unique entity ____ identifier of each party to the joint venture: __.]

(4) . The Economically disadvantaged women-owned small business (EDWOSB) joint venture Contractor represents that it is, is not a joint venture that complies with the requirements of 13 CFR 127.506(a) through (c). [ The Contractor shall enter the name and unique entity ____ identifier of each party to the joint venture: __ .]

(5) Service-disabled veteran-owned small business (SDVOSB) joint venture eligible under the . The Contractor represents that it is, is not an SDVOSB joint venture eligible SDVOSB Program under the SDVOSB Program that complies with the requirements of 13 CFR 128.402. [ The ____ Contractor shall enter the name and unique entity identifier of each party to the joint venture:

(6) [ HUBZone joint venture eligible under the HUBZone Program. Complete only if the offeror is ] The offeror represents, as part of its offer, that It is, is not a HUBZone small business concern.

a HUBZone joint venture that complies with the requirements of 13 CFR 126.616(a) through (c).

[ The Contractor shall enter the name and unique entity identifier of each party to the joint ____ venture: .] Each HUBZone small business concern participating in the HUBZone joint venture must be certified as a HUBZone concern. [ Contractor to sign and date and insert ____ authorized signer's name and title.]

(End of clause)

52.222-42 Statement of Equivalent Rates for Federal Hires.

2014-05

Statement of Equivalent Rates for Federal Hires (May 2014)

In compliance with the Service Contract Labor Standards statute and the regulations of the Secretary of Labor ( 29 CFR Part 4), this clause identifies the classes of service employees expected to be employed under the contract and states the wages and fringe benefits payable to each if they were employed by the contracting agency subject to the provisions of 5 U.S.C.

5341 or 5332.

This Statement is for Information Only: It is not a Wage Determination

Employee Class Monetary Wage-Fringe Benefits (End of clause)

DFARS Clauses Incorporated by Full Text

Date

Alternate Deviation

Variation Effective Date

252.232-7006 Wide Area WorkFlow Payment Instructions.

2023-01

WIDE AREA WORKFLOW PAYMENT INSTRUCTIONS (JAN 2023)

(a) Definitions. As used in this clause-

"Department of Defense Activity Address Code (DoDAAC)" is a six position code that uniquely identifies a unit, activity, or organization.

"Document type" means the type of payment request or receiving report available for creation in Wide Area WorkFlow (WAWF).

"Local processing office (LPO)" is the office…