Lewisville Lake Dam Mowing

Amendment / Modification

This amendment modifies Solicitation W9126G26QA039, originally dated 19 FEB 2026.

Key changes include:

• Incorporation of questions received and answers provided during the Questions and Answers period.

• Addition of ATTACHMENT 4 - Questions and Answers.

• Modification of the page count for ATTACHMENT 4 - Questions and Answers from 3 pages to 3 pages (no net change in page count, but the document itself was added).

• Miscellaneous text updates to references for ATTACHMENT 1 (PWS), ATTACHMENT 2 (Past Performance Questionnaire), ATTACHMENT 3 (Wage Determination), and ATTACHMENT 4 (Questions and Answers).

• The "Summary of Changes" section detailing attachments has been updated.

• ATTACHMENT 4 - Questions and Answers has been added.

This amendment does not appear to change the proposal submission deadline or evaluation factors, but bidders should review the incorporated Q&A for any clarifications that may impact their proposals.

Questions & Answers / Clarifications

This document provides responses to vendor questions regarding the Lewisville Lake Dam Mowing opportunity (Solicitation W9126G-26-Q-A039).

• Mowable Acres: Approximately 205 acres for the total estimated acreage, with the embankment being approximately 175 acres and the spillway approximately 30 acres. The PWS and mowing maps are the definitive guide, as aerial imagery may not account for slope.
• Mowing Frequency: Mowing is to be conducted once per month for the seven months specified in the Performance Work Statement (PWS).
• Due Date: The solicitation due date was updated to March 19, 2026, via Amendment 0001, which also updated the response due time zone to Central Daylight Time (CDT).
• Embarkment Length: Approximately 6 miles, but this is an estimate and the PWS and mowing maps are the definitive source.
• Riprap Trimming: Approximately 8,000 linear feet of riprap requires trimming within a 3-foot strip from the roadway edge. The PWS and mowing maps are the definitive guide.
• Vetting & Escorts: Escorts are not required if contractor employees are vetted through official protocol. However, all work must be completed during office hours (8:00 AM - 4:30 PM, Monday-Friday).
• Equipment Storage: Long-term storage of contractor equipment on-site is not permitted. Overnight storage is allowed during the monthly mowing period, but the Government is not liable for damage, theft, or vandalism.

Amendment 0001 was issued to clarify the due date and time zone for proposal submission. The document also clarifies acreage, embankment length, riprap trimming, and work hours, which may impact proposal preparation and resource allocation.

Amendment / Modification

This amendment modifies Solicitation W9126G26QA039.

• The closing date for the solicitation has been extended.

• The Response Due Date has been changed from 13 Mar 2026 to 19 Mar 2026.

• The Response Due Time Zone has been changed from Central Standard Time (UTC -6) to Central Daylight Time (UTC -5).

• Solicitation closing date

• Response Due Date

• Response Due Time Zone

• The deadline for submitting offers has been extended to 19 March 2026.

Form / Attachment / Pricing Sheet

This document is the NAVFAC/USACE Past Performance Questionnaire (Form PPQ-0). It is designed to collect information from clients regarding a contractor's performance on previous projects. This questionnaire is submitted by the offeror to the government as part of a proposal to demonstrate past performance.

• Contractor Information: Details about the firm, including name, address, CAGE code, DUNS number, and point of contact.
• Contract Information: Specifics about the contract under which the work was performed, such as contract number, type, title, and location.
• Project Description: A section for the contractor to describe the project's complexity and its relevance to the current solicitation.
• Client Information: Details about the client providing the feedback.
• Performance Evaluation: The core of the questionnaire, where the client rates the contractor's performance across various categories including Quality, Schedule/Timeliness, Customer Satisfaction, Management/Personnel/Labor, Cost/Financial Management, Safety/Security, and General aspects. Ratings are provided on a scale from Exceptional (E) to Unsatisfactory (U), with an option for Not Applicable (N).
• Narrative Comments: Space for detailed explanations of ratings, specific strengths, weaknesses, deficiencies, or other relevant information.

This form is crucial for bidders as it is the tool used to gather past performance information. Potential offerors must ensure this questionnaire is completed accurately and thoroughly by their previous clients to present a strong case for their past performance. The information provided in this questionnaire directly impacts the evaluation of an offeror's past performance, which is often a significant factor in contract award decisions.

Statement of Work (SOW) / Performance Work Statement (PWS)

To provide mowing and trimming services for the dam at Lewisville Lakes, Texas.

• Perform mowing and trimming of grass and vegetation on and around dam embankments and prime facilities.

• Work includes furnishing all equipment, materials, and labor.

• Areas covered and number of facilities are detailed in the Mowing Maps (Attachment 3).

• Mowing shall be to a height of not more than three (3) inches or less than two (2) inches.

• Trimming and edging around sidewalks, signs, fences, guard rails, guard posts, trees, shrubs, culverts, and facilities.

• Vegetation in riprap areas shall be trimmed or removed, with potential herbicide application with COR approval.

• Mowed areas shall be uniform and consistent in height.

• No damage to signs, fences, trees, concrete edges, or facilities.

• Edging shall create vertical cuts a minimum of one-half inch below adjacent concrete/impact material/wood levels.

• Grass shall not extend onto sidewalks or concrete pads.

• Trimmed trees shall not have limbs hanging below eight (8) feet above ground level.

• All trash, litter, debris, tree clippings, shrub clippings, and grass clippings shall be removed after each mowing service.

• Performance is subject to a Quality Assurance Surveillance Plan (QASP).

• Performance Objectives include Mowing, Trimming/Edging, and Vegetation in Riprap, with zero deviation from standard required.

• Work to be performed at Lewisville Lake in Lewisville, Texas.

• Mowing is required monthly from January through December (Attachment 2 - Mowing Schedule).

• Contractor shall coordinate with the COR on a date and time to begin mowing each month.

• Once mowing begins, it must be completed within seven (7) calendar days.

• Non-personal service contract.

• Contractor shall develop and maintain a Quality Control Plan (QCP).

• Contractor personnel must comply with all security requirements, including installation access and background checks.

• Contractor shall comply with applicable OSHA standards and the Corps of Engineers Safety and Health Requirements (EM 385-1-1).

• An Accident Prevention Plan and Activity Hazard Analysis (AHA) are required.

• Minimum Personal Protective Equipment (PPE) includes short sleeve shirt, long trousers, steel-toed safety boots, and hard hat in construction/demolition areas.

• Contract personnel require Anti-Terrorism (AT) Level I and iWATCH training.

• Government will provide key cards for access and AT Level 1 and iWATCH training.

Solicitation / RFP / RFQ

This solicitation, W9126G26QA039, is for "Lewisville Lake Dam Mowing." The acquisition is set aside for Small Business. The North American Industry Classification Standard (NAICS) code is 561730, with a size standard of $9,500,000.00.

• Dam Embankment Mowing

• Dam Spillway Mowing

• Services are to be performed in accordance with a Performance Work Statement (PWS).

• Pricing Arrangement: Firm Fixed Price.

• Period of Performance: The base period and option periods extend from April 1, 2026, to March 31, 2030, with each period lasting 7 months.

• Offer Due Date/Time: March 19th, 2026, at 1:00 PM CST.

• Submission Method: All submissions must be electronically uploaded through the PIEE Solicitation Module. Alternative methods are not accepted unless PIEE is unavailable.

• Evaluation Factors: The government will award to the responsible Offeror whose offer is most advantageous, considering price and past performance. The evaluation process involves:

  1. Reviewing quotes for compliance with solicitation requirements.
  2. Ordering acceptable quotes by Total Evaluated Price (TEP) from lowest to highest.
  3. Evaluating the lowest priced offeror's past performance and technical submission. If "Satisfactory Confidence" is achieved, award may be made.
  4. If no award is made in Step 3, the government will evaluate the next lowest priced offer, continuing until a "Satisfactory Confidence" rating is achieved or all offers are evaluated.

• Site Visit: A site visit is scheduled for March 3rd, 2026, at 10:00 AM CST. Interested parties must email the Contract Specialist by February 26th to request attendance.

• Questions: Questions are due by March 6th, 2026, at 1:00 PM CST, and must be submitted via email to the Contract Specialist.

• This acquisition is a Small Business set-aside.

• Offerors must qualify as a Small Business in SAM.gov under NAICS 561730 to be eligible for award.

• NIST SP 800-171: Offerors required to implement NIST SP 800-171 must have a current assessment (not more than 3 years old).

• The contract will be Firm Fixed Priced.

• Award will be made on an "all or nothing" basis.

• Offerors must acknowledge, sign, and submit all solicitation amendments.

Form / Attachment / Pricing Sheet

This document is a "REGISTER OF WAGE DETERMINATIONS UNDER THE SERVICE CONTRACT ACT" issued by the U.S. Department of Labor, Employment Standards Administration, Wage and Hour Division. It provides the minimum wage rates and fringe benefits required for various occupations when performing contract work subject to the Service Contract Act in specific geographic areas.

• Wage Determination Number: 2015-5227, Revision No.: 27
• Date of Last Revision: 12/03/2025
• Area: Texas Counties of Collin, Dallas, Denton, Ellis, Hunt, Kaufman, Rockwell
• Occupational Listing: Includes a comprehensive list of job titles, corresponding occupation codes, and the minimum hourly wage rate for each. It also indicates that "Fringe Benefits Required Follow the Occupational Listing."
• Executive Orders: Notes the applicability of Executive Order (EO) 13706 (Paid Sick Leave) and EO 13658 (Minimum Wage) for federal contractors, outlining specific requirements and minimum rates for each.
• Benefits: Details required benefits such as vacation (2, 3, or 4 weeks based on service years), a minimum of eleven paid holidays, and health & welfare benefits ($5.55 per hour or $222.00 per week).
• Conformance Process: Outlines the procedure for contractors to request additional classifications and wage rates if an occupation is not listed in the determination.

This document is crucial for bidders to understand the minimum labor costs associated with performing the contract. It establishes the baseline wages and benefits that must be paid to employees working on the contract, directly impacting the cost proposal and overall bid competitiveness. Bidders must ensure their proposed wages and benefits meet or exceed these requirements.