99 CES - PKC - Water Tank Survey

Questions & Answers / Clarifications

This document provides clarifications and answers to questions regarding the FY26WTRTNKKT - Water Tank Survey opportunity.

• Tank Draining: Tanks are not required to be drained prior to cleaning and inspection.
• Inspection Method: The scope is not strictly confined space entry; diver or ROV inspection is possible. However, Tanks 1721, 561, and 10113 must remain online due to system layout.
• Waste Disposal: The provider is responsible for all labor, equipment, materials, and services for transporting and disposing of waste, minor debris, and other materials at a suitable facility, adhering to environmental regulations.
• Water Supply & Chemicals: Water supply is available on site. The contractor must install a tested and operational backflow preventer. Restrictions on cleaning or disinfection chemicals are not specified, but adherence to potable water system safeguarding is required.
• Schedule: Work is typically Monday-Friday, 0630-1530, excluding federal holidays. Working weekends is advisable for Tanks 1721, 561, and 10113.
• Confined Space Rescue: All tanks are Permit-Required Spaces. A dedicated and trained rescue team is likely required on-site or readily available, as per OSHA Standards.
• Water Operator Certification: Item 4 of the SOW mentions a Certified Water Operator. This is generally a facility certification, not a third-party contractor requirement, but the involvement of a certified operator is typically mandated to oversee or execute cleaning activities per AWWA D102-24 and AWWA C652-19 standards.
• Bacteriological Water Testing: The contractor is responsible for all bacteriological water testing. This is not a new requirement.

This Q&A document clarifies operational constraints, responsibilities, and requirements, which may impact how bidders plan their approach, resource allocation, and pricing for the water tank survey.

Solicitation / RFP / RFQ

This is a combined pre-solicitation/solicitation for commercial products or services, issued as a Request for Proposal (RFP) for a Firm Fixed Price contract. The procurement is a Total Service-Disabled Veteran-Owned Small Business (SDVOSB) set-aside.

• Conduct a water quality condition assessment, inspection, washout, and disinfection of:

  • One (1) underground water storage tank
  • Three (3) elevated storage tanks
  • Four (4) ground storage tanks

• Refer to "Attachment 1 – SOWv2" dated 25 March 2026 for detailed information.

• Period of Performance: 90 Days after award

• Place of Performance: Nellis AFB, Nevada

• Inspection and Acceptance: FOB Destination

• Contract Type: Firm Fixed Price

• Questions Due Date: Monday, 6 April 2026 at 10:00 AM PDT

• Offers Due Date: Wednesday, 8 April 2026 at 12:00 PM PDT

• Offers must be submitted electronically via email.

• Acceptable formats: Adobe PDF, Excel, Microsoft Word.

• Evaluation Factors: Award will be made to the Offeror whose Acceptable Technical Proposal represents the Best Value to the Government, determined by the Lowest Priced Technically Acceptable (LPTA) offer.

• Required Proposal Content:

  • Technical Proposal (outlining work in accordance with SOW)
  • Attachment 2 - Price List
  • Product Specifications, CAGE Code, SAM Unique Entity ID, Taxpayer I.D. No., Payment Terms, Discount Terms, Offerors Reps and Certs, Point of Contact, Phone, Fax, Email, and Proposed Delivery Schedule.
  • Completed Price Sheet for all CLINs.
  • Completed copy of FAR 52.212-3, Offeror Representations and Certifications -- Commercial Items.

• Set-Aside: Total Service-Disabled Veteran-Owned Small Business (SDVOSB)

• NAICS Code: 541380 - Water Tank Survey

• Small Business Size Standard: $19 Million

• Offerors must be registered in the System for Award Management (SAM).

• Proposals must be less than 10 MB in total.

• Offerors agree to hold prices firm for 90 calendar days from the offer due date.

• Past performance information may be retrieved from government databases.

Solicitation / RFP / RFQ

This is a combined pre-solicitation/solicitation for commercial products or services, issued as a Request for Proposal (RFP) for a Firm Fixed Price contract. It constitutes the only solicitation, and no separate written solicitation will be issued.

• The contractor shall complete a water quality condition assessment, inspection, washout, and disinfection of a total of eight (8) storage tanks: one (1) underground, three (3) elevated, and four (4) ground storage tanks.

• This work is to be performed in accordance with 40 CFR Parts 141.401 and 141.723, and any other relevant EPA mandates.

• A detailed Statement of Work (SOW) is provided in "Attachment 1 – SOWv2" dated March 25, 2026.

• Contract Type: Firm Fixed Price

• Period of Performance: 90 Days after award

• Place of Performance: Nellis AFB, Nevada

• Inspection and Acceptance: FOB Destination

• Offerors must label proposals as "Attachment 1 – Proposal".

• Proposals must include a completed Price List, with CLINs priced per water tank/tower facility. Attachment 2 is a Price List that auto-populates the total contract value.

• Offerors must include product specifications, CAGE Code, SAM Unique Entity ID, Taxpayer I.D. No., Payment Terms, Discount Terms, Offerors Reps and Certs, Point of Contact, Phone, Fax, Email, and Proposed Delivery Schedule.

• Offers are due electronically via email by Wednesday, April 8, 2026, at 12:00 PM PDT.

• Evaluation will be based on Lowest Priced Technically Acceptable (LPTA) approach. Technical acceptability will be determined on an Acceptable or Unacceptable basis.

• This acquisition is a Total Service-Disabled Veteran-Owned Small Business (SDVOSB) set-aside.

• The North American Industry Classification System (NAICS) code is 541380 - Water Tank Survey, with a Small Business Size Standard of $19M.

• Prospective vendors must be registered in the System for Award Management (SAM) database prior to contract award.

• Questions were due by Monday, April 6, 2026, at 10:00 AM PDT.

• Offerors must include a completed copy of FAR 52.212-3, Offeror Representations and Certifications -- Commercial Items.

• Offers must be held firm for 90 calendar days.

• Attachments referenced include "Attachment 1 – SOWv2" and "Attachment 2 - Price List" (which auto-populates).

• Numerous FAR and DFARS provisions and clauses are incorporated by reference.

Statement of Work (SOW)

The 99th Civil Engineer Squadron (99 CES) requires a water quality condition assessment, inspection, washout, and disinfection of ten (10) storage tanks.

• The vendor must furnish all equipment, labor, and materials to complete the scope of work.

• The work includes one (1) underground water storage tank, three (3) elevated water storage tanks, and six (6) four (4) ground storage tanks.

• Tasks include water quality condition assessment, inspection, washout, and disinfection of these tanks.

• The vendor is responsible for all damages to existing facilities incurred during work and must restore them to original conditions.

• The work must comply with 40 CFR Parts 141.401 and 141.723, and other relevant American Water Works Association (AWWA) requirements.

• A "Summary of all work performed, a photo, and condition assessment for the Water Storage Tanks" must be provided.

• "Details of the disinfection program performed and all results of testing before and after disinfection and cleaning per AWWA" must be provided.

• All tasks must be completed, including contract close-out, within 90 days after contract award.

• Vendor must have a minimum of 5 years of experience with 3 million gallon water tanks.

• A 99 CES Representative must be in attendance during all assessments, inspections, and disinfections.

• Vendor must be a Certified Water Operator per Nevada Revised Statutes 445A.875 through 445A.880 and AWWA requirements.

• Compliance with numerous codes and standards is required, including UBC, IBC, IPC, DODD, NEC, IMC, AWWA, NSF, and local/state/federal standards.

• Security and access requirements for Nellis/Creech AFB must be followed, including base pass requests, potential criminal history checks, and coordination with 99 CONS/99 CES POC at least 20-30 workdays prior to access.

Solicitation / RFP / RFQ

This is a combined pre-solicitation/solicitation for commercial products or services, issued as a Request for Proposal (RFP) for a Firm Fixed Price contract. The acquisition is a Total Service-Disabled Veteran-Owned Small Business (SDVOSB) set-aside.

• Conduct a water quality condition assessment, inspection, washout, and disinfection of nine (9) water storage tanks (3 elevated, 6 ground).

• Services must comply with 40 CFR Parts 141.401 and 141.723, and other EPA requirements.

• Detailed scope of work is provided in "Attachment 1 – SOW".

• Contract Type: Firm Fixed Price

• Period of Performance: 90 Days after award

• Place of Performance: Nellis AFB, Nevada

• Inspection and Acceptance: FOB Destination

• Offer Due Date: Monday, 6 April 2026 at 12:00 PM PDT.

• Proposals must be submitted electronically via email.

• Acceptable formats: Adobe PDF, Excel, and Microsoft Word.

• Questions Due Date: Tuesday, 24 February 2026 at 10:00 AM PDT.

• Evaluation Factors: Award will be made to the responsible offeror whose proposal is most advantageous to the Government, considering Price and Technical factors (Lowest Priced Technically Acceptable approach).

• Offerors must complete the "Attachment 2 - Price List" fully, providing unit prices for each CLIN.

• Proposals must include: Product Specifications, CAGE Code, SAM Unique Entity ID, Taxpayer I.D. No., Payment Terms, Discount Terms, Offerors Reps and Certs, Point of Contact, Phone, Fax, Email, and Proposed Delivery Schedule.

• Offerors must include a completed copy of FAR 52.212-3, Offeror Representations and Certifications -- Commercial Items.

• Offers must be held firm for 90 calendar days.

• This acquisition is a Total Service-Disabled Veteran-Owned Small Business (SDVOSB) set-aside.

• NAICS Code: 541380 - Water Tank Survey, Small Business Size Standard $19M.

• Offerors must be registered in the System for Award Management (SAM).

• Attachment 1 – SOW

• Attachment 2 – As Builds

Questions & Answers / Clarifications

This document provides responses to vendor questions regarding the FY26WTRTNKKT – Water Tank Survey opportunity, clarifying requirements and procedures.

• Tank Cleaning Method: Tanks must be drained for manual cleaning, adhering to AWWA C652. Certified commercial divers may be used for underwater maintenance.
• Scaffolding: Scaffolding is permissible inside tanks if materials and tools are clean/disinfected and removed upon completion, per AWWA C652.
• Sediment Disposal: Removed sediment/sludge must be disposed of off-base due to potential hazards and NDEP regulations. Transport to a licensed landfill or incineration facility is advised.
• Certified Water Operator: A certified water operator is required, aligning with AWWA D102-24 and Safe Drinking Water Act (SDWA) standards, to oversee cleaning and disinfection.
• Project Timeline: The timeline is influenced by weather, water consumption, contract awards, mobilization, and THM sampling schedules. Tank isolation may require alternative solutions like instant water main valves.
• Disinfectant: Sodium hypochlorite is allowed, but thorough flushing is required post-cleaning to prevent reactions with calcium hypochlorite. The ratio is 2 gallons of 5.25% household bleach per 1,000 gallons of tank capacity.
• Debris Type: Anticipated debris includes calcium compounds, sand, organic matter, rust, plastic fragments, and occasionally small aquatic life.
• Water Source: Tanks 1721 and 1725 receive water from the water agency's treatment facility; others use base clearwells. Tank 562 uses a well source.
• Onsite Water: Water will not be available on-site for the washing crew. They must plan accordingly or use the nearest accessible facility.
• Cleaning Solution/Rinsing Water Disposal: The contractor must collect and properly dispose of cleaning solutions and rinsing water off-base, following NDEP regulations to protect groundwater.
• Tank Locations: Lat/long coordinates are available but require coordination with the base's Emergency Management Team for security reasons.
• Ladders: While tanks have access ladders, contractors must bring their own to reach access points safely.

These clarifications refine requirements related to cleaning methods, disposal, staffing, chemical usage, and site logistics. Bidders should ensure their proposals address these detailed points, particularly regarding compliance with AWWA standards and NDEP regulations.

Solicitation / RFP / RFQ

This is a combined pre-solicitation/solicitation for commercial products or services, issued as a Request for Proposal (RFP) for a Firm Fixed Price contract. It is a Total Service-Disabled Veteran-Owned Small Business (SDVOSB) set-aside.

• Conduct a water quality condition assessment, inspection, washout, and disinfection of three (3) elevated water storage tanks and six (6) ground storage tanks (totaling nine).

• Services must comply with 40 CFR Parts 141.401 and 141.723, and other EPA requirements.

• A Statement of Work (SOW) is provided as Attachment 1 for more detailed information.

• Period of Performance: 90 Days after award.

• Place of Performance: Nellis AFB, Nevada.

• Inspection and Acceptance: FOB Destination.

• Offer Due Date: Friday, 6 March 2026 at 12:00 PM PDT.

• Submission Method: Electronic offers only via email.

• Proposal Requirements: Must include Product Specifications, CAGE Code, SAM Unique Entity ID, Taxpayer I.D. No., Payment Terms, Discount Terms, Offerors Reps and Certs, Point of Contact, Phone, Fax, Email, and Proposed Delivery Schedule.

• Pricing: Offerors must complete the provided Price Sheet (Attachment 2), pricing each water tank/tower facility. Only unit prices should be entered; extended prices and totals will auto-populate. Ensure accuracy and do not exceed two decimal points.

• Evaluation: Award will be made to the responsible offeror whose proposal is most advantageous to the Government, based on Lowest Priced Technically Acceptable (LPTA) criteria. Technical acceptability will be determined first, followed by price evaluation.

• Questions Due Date: Closed on Tuesday, 24 February 2026 at 10:00 AM PDT.

• Set-Aside: Total Service-Disabled Veteran-Owned Small Business (SDVOSB).

• NAICS Code: 541380 - Water Tank Survey, Small Business Size Standard $19M.

• Registration: Prospective vendors must be registered in the System for Award Management (SAM) database prior to contract award. Lack of SAM registration will be a determining factor for award.

• This announcement constitutes the only solicitation; no written solicitation will be issued.

• Offerors must include a completed copy of FAR 52.212-3, Offeror Representations and Certifications -- Commercial Items.

• Offers must be in Adobe PDF, Excel, or Microsoft Word format.

• Attachments referenced include: Attachment 1 – SOW and Attachment 2 - Price List (As Builds are also listed but not explicitly detailed as required for submission).

• Incorporated provisions and clauses are effective through Federal Acquisition Regulation, February 2026.

Statement of Work (SOW)

This SOW outlines the requirements for a water quality condition assessment, inspection, washout, and disinfection of nine (9) storage tanks (three elevated and six ground) for the 99th Civil Engineer Squadron (99 CES).

• Perform water quality condition assessment, inspection, washout, and disinfection of nine water storage tanks.

• Provide all necessary equipment, labor, and materials.

• Details regarding tank locations, dimensions, and existing conditions are provided.

• The work must comply with 40 CFR Parts 141.401 and 141.723, and other EPA mandates.

• All tasks must be completed within 90 days after contract award.

• The work will be performed at Nellis/Creech AFB installations.

• Vendor Qualification: Must be a Certified Water Operator per Nevada Revised Statutes 445A.875 through 445A.880 and Nevada Division of Environmental Protection requirements.

• Deliverables: An Assessment and Disinfection Report including a summary of work, photos, condition assessment, disinfection program details, and testing results.

• Security & Access: Vendors require permission for installation access, are subject to vehicle searches, and personnel may undergo criminal history checks. Base pass requests must be submitted at least 20-30 workdays prior to access. Foreign personnel require proof of citizenship/residency/work permit. Coordination with 99 CONS and 99 CES POC is mandatory for access.

Solicitation / RFP / RFQ

This is a combined pre-solicitation/solicitation for commercial products or services, issued as a Request for Proposal (RFP) for a Firm Fixed Price contract. The procurement is a Total Service-Disabled Veteran-Owned Small Business (SDVOSB) set-aside.

• Completion of a water quality condition assessment, inspection, washout, and disinfection of nine (9) water storage tanks (3 elevated, 6 ground).

• Services must comply with 40 CFR Parts 141.401 and 141.723, and other U.S. EPA mandated requirements.

• Deliverables include a Technical Proposal and a Price List.

• Contract Type: Firm Fixed Price

• Period of Performance: 90 Days after award

• Place of Performance: Nellis AFB, Nevada

• Inspection and Acceptance: FOB Destination

• Offers are due Friday, 27 February 2026, at 12:00 PM PDT.

• Electronic offers via email only (Adobe PDF, Excel, Microsoft Word).

• Questions are due Tuesday, 24 February 2026, at 10:00 AM PDT.

• Evaluation Factors: The award will be made to the responsible offeror whose proposal is most advantageous to the Government, based on Lowest Priced Technically Acceptable (LPTA) criteria.

  • Factor 1: Price (Total Evaluated Price)
  • Factor 2: Technical (Acceptable/Unacceptable)

• Proposals must include completed Price List (Attachment 2) and Technical Proposal (Attachment 1 - SOW).

• Total Service-Disabled Veteran-Owned Small Business (SDVOSB) set-aside.

• NAICS Code: 541380 - Water Tank Survey, Small Business Size Standard $19M.

• Offerors must be registered in the System for Award Management (SAM).

• Solicitation Number: FY26WTRTNKKT

• Incorporated provisions and clauses are effective through Federal Acquisition Regulation, February 2026.

• Offerors must include completed 52.212-3, Offeror Representations and Certifications -- Commercial Items.

• Prices must not go beyond two digits past the decimal point.

• Past performance will be considered, and unsatisfactory performance records may result in a non-responsible determination.

Form / Attachment

This document comprises a set of "Record Drawings" (as-built plans) for the "REPAIR WATER TANKS AND COAT INTERIORS, MULTIPLE FACILITIES, NELLIS AFB" project under Contract #: FA4861-14-C-A002. The purpose of these drawings is to provide detailed engineering and construction specifications for the repair, coating, and cathodic protection of multiple water tanks at Nellis Air Force Base. These record drawings reflect the final or as-built condition of the project.

• Project Scope: Detailed plans for the repair and interior coating of water tanks, including tanks 561, 562, 491, 61669, 61670, 1726, 1725, and 10420.
• Drawing Types: Includes a comprehensive sheet index covering general notes, location maps, demolition plans, work plans, cathodic protection plans, and structural, mechanical, and electrical details.
• General Requirements: Specifies interior and exterior coating procedures (e.g., blast cleaning to SSPC SP-10, Sherwin Williams products), lead testing, sediment disposal, chlorination, pressure washing, and material standards (e.g., stainless steel mesh).
• Structural/Mechanical Details: Outlines requirements for guard rails, OSHA-compliant ladders and platforms, overflow pipes, valves, weather stripping, and repair of tank components.
• Cathodic Protection (CP): Details the replacement of anodes, reference electrodes, rectifiers, and associated wiring, emphasizing electrical isolation and testing for suitable protection.
• As-Built Status: Many sheets are explicitly marked "AS BUILT" or "RECORD DRAWING," indicating they represent the final constructed state.
• De-scoped Items: Notes that work on Tank 1999 was de-scoped per Modification 006, and interior work for Tank 10420 was de-scoped per Modification 007.

This document is highly relevant for potential bidders interested in future water tank repair, coating, or maintenance opportunities at Nellis AFB or similar facilities. It provides a clear understanding of:

• The technical complexity and scope of work previously executed.
• Specific material requirements, performance standards, and safety compliance (e.g., OSHA) expected by the client.
• The detailed engineering and construction practices to be followed.
• The existing infrastructure and modifications made, which can inform proposals for subsequent phases or similar projects.