Atch 17-FA480325B0011 Wells Site Visit 2 Questions CE.pdf

DEPARTMENT OF THE AIR FORCE

20TH FIGHTER WING (ACC)

SHAW AIR FORCE BASE SOUTH CAROLINA

VICTORY BY VALOR

17 July 2025

MEMORANDUM FOR SOLICITATION FA480325B0011

FROM: 20th Contracting Squadron/PKB 321 Cullen Street, Building 216 Shaw Air Force Base, SC 29150

SUBJECT: Solicitation Questions and Answers

1. Are there existing taps or provisions on the elevated water storage tanks for installation of instrumentation to measure level and provide overflow/overfill protection? (Please include any available drawings or photos of tank nozzles/penetrations.)

Answer: No existing taps that are above ground level.

2. How are the high and low tank levels currently monitored at the elevated tanks? (e.g., DP level, float switch, pressure sensor, etc.) (Is there existing instrumentation for overflow/overfill protection?)

Answer: B925 Pressure level is determined

3. For low water level measurement at storage tanks, what technology and physical tap location is currently used?

Answer: Differential Pressure sensor

4. Is it acceptable to use differential pressure (DP) measurement (with the high side at tank bottom and low side vented to atmosphere) for high-level detection and overflow protection, or is instrumentation at the tank top required?

Answer: See SOW page 4. DP can be used for high level detection. It cannot be used for overflow.

5. Is a new local HMI required at each site (Wells 3, 4, 5, 6, and the Base Tower)? (Please clarify if HMI graphics/displays are required at every well and the base tower.)

Answer: Please see SOW. Page 4 Under the Programming section.

6. Can the existing structural supports at each well and the base tower be reused for mounting new VFDs and control panels, or must new supports be installed?

Answer: No. Install new structural supports.

7. Where will the new main PLC control panel(s) be physically located after the Automated Logic system is removed at each site? (Please specify for all wells and the base tower.)

Answer: See SOW page 6 and see attachment 01 page AT01-24

8. Is remote control and monitoring required for all wells (3, 4, 5, 6) and the base tower? (From the site visit, our understanding is that remote control should be available at all sites—please confirm.)

Answer: See SOW page 5. The remote control and monitoring will require wells 3,4,5,6 and the base tower at the completion of the project CLINS 1 & 2. The remote monitoring of all wells and towers will be required at completion of the project.

9. For Well 5, which flow meter is to be replaced—influent, effluent, or both? Can you provide a photograph or drawing to clarify the location?

Answer: See SOW page 13. Effluent flow meter.

Note the Influent flow meter is the one right after the main well pump. The effluent flow meter is the one next to the air stripper tower.

10. Does the cooling tower PLC at Well 5 need to be replaced, or just re-integrated into the new

SCADA system?

Answer: The PLC can be reused if the contractor can meet the requirements of the SOW.

11. Are floor coatings required to be installed before replacing skids in chemical rooms?

Answer: See SOW page 1. The contractor is required to be constructed to meet “meet guidelines and standards provided by Shaw AFB Design and Construction Standard, American National Standards Institute (ANSI), American Waterworks Association (AWWA), National Electrical Code (NEC), and Uniform Plumbing Code (UPC).”

12. Will the entire room require painting after demolition, or only disturbed wall/ceiling/floor finishes? (We noted the response: "Corner to corner if any section of the wall is damaged."

Please confirm if partial touch-up is acceptable.)

Answer: No partial touch up. See SOW and Shaw Design standard.

13. Will the government provide as-built drawings and SCADA integration documentation for Wells 3 and 5 prior to the design phase? (Confirmed "Yes" for 3 and 5—do you intend to provide as-builts for Wells 4, 6, and the base tower as well?)

Answer: 20th CES will provide all available as builts for all 3,5,4,6 and base tower.

14. Are P&ID diagrams required for any wells or system components beyond Wells 3 and 5?

(Please clarify which additional wells, if any, require new P&IDs.)

Answer: See SOW.

15. What is the required cybersecurity categorization for this project: Low, Medium, or High?

Answer: Medium

16. If the contractor is responsible for Authorization to Operate (ATO) support, what is the required scope for supporting government-provided PC hardening? (e.g., checklist, technical support, document uploads to a portal, etc.)

Answer:

• SEE SOW page 6

17. Are new Cisco switches needed for the COIN-Non EMCS room for the new station, or can approved alternatives be proposed?

Answer: See SOW page 6

18. List or quantity of spare breakers available in the 120/220 vac panels. ALL LOCATIONS

Answer: Per Shaw design standard when a new panel is installed the contractor is required to provide 20% extra capacity. We had two visits for this project, and everyone had the opportunity to take pictures at each of the power panels.

19. Are the blowers also being called exhaust fans on the outside of the buildings? Or is it a separate piece of equipment?

Answer: Exhaust fans are a part of the well buildings. The blower is for the stripper tower.

20. Is there compressed air available at Well 3 and 5? May need to add a small standalone compressor.

Answer: No.

21. Is there list of Equipment to be DEMO’d?

Answer: See SOW and attachment 01.

22. Are all internal components besides power panels being removed?

a. Ie. FX 8500 Compound LOOP controller and associated sealtite and conduit runs, etc. We will need room for the new devices/analyzers, etc.

Answer: This is a Design Build. See SOW. The contractor is reasonable for the Demolition plans.

23. Will we be using existing pressure regulators? See 20250711_103450.jpg.

Answer: See SOW page 4. The contractor shall supply and install all required equipment, software, and programming needed to fully automate the remote control and monitoring of the water distribution system on Shaw AFB per award.

24. Will we be replacing the CPVC piping? See 20250711_103450.jpg.

25. Will we be replacing the mechanical flow meters and PIs? See 20250711_103450.jpg.

26. Do you want us to reuse the enclosure and replace the PLC back plane with the upgraded equipment? If so, we need dimensions / model number of the enclosure. See 20250711_103500.jpg.

27. Replace VFD Panels or just replace VFD in existing panel? Need enclosure dimensions.

Answer: SEE SOW and Attachment 01 page AT01-6

28. Will we keep the Fiber optic patch panels? I assume yes currently.

29. Wall dimension?

Answer: This is Design Build project. Also, we had two visits for this project, and everyone had the opportunity to take pictures and measurements at each site location.

30. Building/room dimensions? Well 3 and 5

Answer: This is Design Build project. Also, we had two visits for this project, and everyone had the opportunity to take pictures and measurements at each site location.

31. A complete list of all existing instrumentation/switches, etc from walkdown?

Answer: 20th CES will provide all available as Builts after award.

32. Add Step up to 480-volt from 208-volt transformers for drives. YES. At well 5

Answer: See SOW page 14.

33. For the Automated Logics Networking devices – Are those to be removed or Abandoned in Place?

Answer: See SOW and attachment 01 – page AT01-24

34. Is an Arc Flash Study part of the Scope? And if so, for Wells 3 and 5 Only?

Answer: See SOW page 1.

35. As to the Flowmeters at Wells #3 and #5 there are two at each well. Of those two which one(s) gets replaced and which one(s) are still functional? (Knowing that all need to be working when project is complete.)

Answer: See SOW page 10 and 14.

36. Future Water Shop PC for Rockwell Software:

b. Confirm that PC is Supplied by Shaw AFB. Yes

c. Does it get shipped to the Contractor? No

d. Does the contractor load the Rockwell Software on site or remotely? On Site

e. When in the schedule does the ATA Cyber security work on the PC occur? The contractor shall start working on the paper work during the design phase. The cyber security work shall be completed during the construction phase.

Answer:

37. What is the Topology of the COIN fiber network?

a. Ring, Star or other?

Answer: See Attachment 01

38. Can the Government confirm if a specific version of Studio 5000 is required or if the contractor can select the latest compatible release?

Answer: See first QA’s

39. Is there a pre-approved list of acceptable alternatives for the Cisco switch in case it becomes unavailable?

40. Will the Government provide static IP addresses for all new SCADA equipment or should the contractor coordinate for network configuration?

41. Can the Government clarify if the control narratives and ladder logic must be approved before physical installation?

42. For soda ash pumps (300-600 GPD), can flow range be finalized based on water pH analysis after NTP?

43. Should skids for chemical feed pumps be fabricated to match Well 4's spec exactly or is field adjustment allowed?

44. Is the Government providing the 65" and 55" monitors, or is procurement by the contractor?

45. Can the Government confirm whether cellular dial-out capabilities need integration into a base-wide notification platform?

46. Will delays in Government review beyond the 21 calendar days for each design phase result in an extension to the PoP?

47. Are there submission templates or standards for DD1354 and Functional Acceptance Tests?

48. Is there a demolition drawing that indicates boundaries for conduit and cabinets to be removed?

See first QA’s

49. Are there any existing hazardous materials surveys available for areas with equipment demolition?

50. Is the Government providing the software licenses for Studio 5000 or should these be included in the contractor's cost?

51. Will escort-free access to Well locations be available throughout the construction schedule?

52. Can the Government confirm if a radar level sensor is acceptable in place of an ultrasonic sensor at the stripper tower tank, especially considering condensation or foam conditions?

53. Should the contractor develop custom HMI functionality for setting the high-high and low-low water level marks during commissioning, or will standard Allen Bradley modules be provided?

54. Is there a preferred specification or model for the heat tracing system required for the stripper level sensor pipe?

55. Can the Government confirm whether any of the conduit or cabling attached to the cabinets to be demolished can be removed entirely or must be capped and left in place?

56. What precautions or Government-provided procedures must be followed to protect the fiber line that is to remain during cabinet demolition?

57. Will the Government provide the necessary power and data connections at the designated Allen Bradley PC workstation location, or should the contractor include this infrastructure?

58. Can the Government confirm the voltage and phase supply for the new main well motor VFD to ensure compatibility during design?

59. Are there specific dimensions or material requirements for the drop-down sample table to be installed at Well 3?

60. Does the Government require the gray background theme shown in the example graphic to be used consistently across all HMI displays for each well and tower?

61. Can the Government confirm if all permits listed (NPDES, SWPPP, FAA, etc.) are required for this scope? Are any pre-approvals in place?

62. For AF Form 103 submission, what is the current average turnaround time for approval?

63. Will any EPA or SC DHEC inspections be scheduled during or post-construction?

64. Is there a pre-approved on-base location for temporary washout facilities?

65. Will the existing fiber backhaul or SCADA panel support the new analyzers, or is an upgrade required?

66. Is a specific point of contact already designated for the review and signature of the interim/final DD1354 forms?

67. Can the Government provide a sample confined space program template to align our submittal with base requirements?

68. Is there an authorized on-base transfer station available for non-hazardous demolition waste?

69. Are there any additional security screenings (e.g., background checks) required beyond base access requests for subcontractor personnel?

70. Will the Government provide a specific list of required login access levels and SCADA user roles for each site (Well 3, Well 5, Tower, WIFM)?

71. Is there any restriction on the contractor extending or modifying existing Shaw AFB fiber infrastructure to support SCADA communications?

72. Are there any anticipated base-level utility outages or training activities that will limit access or power availability during the 429/477-day performance windows?

73. Will the Government assist in obtaining Shaw AFB-specific permits, such as dig, outage, or crane permits, or must the contractor directly coordinate all of these?

74. Are there any known waivers or exceptions in place that permit the use of foreign-made analyzers or components for SCADA hardware?

75. Do any of the contractor or subcontractor personnel require background investigations beyond the standard base access process?

76. Will subcontractors or key technical personnel be required to attend the preconstruction conference mentioned in FAR 52.236-26?

Answer: The Prime Contractor will be required to attend the Pre-Construction Meeting. The Governement does not require subcontractor’s to attend.

77. Will the Government provide existing as-built drawings and SCADA integration documentation for Well 3 and Well 5 before the design phase?

78. Can the Government confirm whether the contractor must also ensure compatibility with the EMCS (Energy Management Control System)?

79. In the case of phased delivery or substantial completion milestones, how will the $410.32/day liquidated damages be assessed?

80. What is the maximum expected review time for design submissions before it is considered a schedule-impacting delay under FAR clauses?

81. How many total chemical analyzers are required (Chlorine, Fluoride, Phosphate, pH)?

Are specific makes/models preferred?

82. What specifications are required for the 65" and 55" monitors (e.g., wall mount vs.

stand, outdoor vs. indoor)? Will HDMI input suffice?

83. Does the Government provide Studio 5000 licenses, or should these be included in the material cost? Which version is required?

84. Is FactoryTalk being used strictly for alarming/HMI or for full SCADA integration?

Is a site-wide license required?

85. What is the horsepower, voltage, and phase requirement for the VFD(s)? Will they be mounted indoors or outdoors?

86. Is there a standard labor rate or labor category to be used in the 'Avg. Rate ($/hr)' field?

87. Should material costs include shipping to Shaw AFB, or is there a designated staging area for government receipt?

88. Can the Government confirm quantities for each item (e.g., eyewash stations, TVs, software installations) if left blank in the pricing sheet?

89. Will additional line items for control panel enclosures or conduit runs be provided, or should they be embedded in other cost lines?

90. Is the contractor responsible for priming and painting newly installed supports, piping, or equipment enclosures, even if not itemized in the bid sheet?

91. Are there base-approved paint types or color standards for equipment, enclosures, or supports at Shaw AFB?

92. Should any wall/ceiling/floor finishes disturbed during demo or installation be restored with matching paint? Is full-room repainting required?

93. Does the project require permanent or temporary generator backup for the SCADA systems, VFDs, or control panels? Or is a UPS system sufficient for all redundancy needs?

94. Will this project require HVAC upgrades or new ventilation within the well enclosures or chemical rooms? If so, are specific models or sizing constraints provided?

95. If existing HVAC systems are in place, must they be integrated into the SCADA/EMCS system?

96. If HVAC equipment is to be installed, where should condensate drainage be routed for compliance with base standards?

97. Will any areas of this project (e.g., new electrical cabinets, analyzer skids, or workspaces) require fire sprinkler system design and installation per UFC 3-600-01 and NFPA 13?

98. Can the Government confirm that no equipment (e.g., analyzers, pumps, software licenses, monitors) will be furnished as GFE for this project? All materials are assumed to be Contractor-Furnished and Contractor-Installed.

99. Can the Government confirm the number of calendar days allotted for submittal reviews at each stage (e.g., 35%, 65%, 95%)? Will delays in review affect the PoP?

100. Will existing ductbanks or raceways be available for use to route new SCADA fiber, or should the contractor trench new conduit paths?

101. Is the Government responsible for assigning IP addresses and configuring SCADA network switches, or should the contractor preconfigure and coordinate settings with base IT?

102. What format (digital, analog, MODBUS, etc.) should tower high/low level alarm signals be delivered in for base-wide alerting?

103. Will contractor personnel need daily escorts, or will recurring access badges be provided for cleared staff after initial base approval?

104. Is there an on-base waste transfer station for demo materials, or must all waste be hauled offsite? Any restrictions on disposal timing or haul routes?

105. Will the SCADA system or any collected data be considered sensitive or classified, requiring encryption or secured communication channels?

Answer: See first QA’s and updated SOW.

106. Is this SCADA upgrade expected to tie into an existing Energy Management Control System (EMCS) or is it a fully isolated system?

107. Will the Government conduct a single final inspection, or is phased acceptance (e.g., Well 3, then Well 5, then Tower) expected for system commissioning?

108. Is the contractor required to provide spare parts or operator training as part of closeout? If so, what deliverables are expected?

109. Will Government personnel be required to witness final commissioning, or is the contractor solely responsible for validating system performance before final DD1354 submission? Are there specific test procedures or forms (e.g., checklist or FAT) to be used during this phase?

110. Do the Superintendent, SSHO and QC Manager need to be 3 separate individuals?

111. Are there any phasing requirements?

112. If the building remains occupied, how many people will be in the building?

113. Are there any temporary heating/cooling requirements?

114. Can the period of performance be extended after award once the material/equipment lead times are confirmed due to current market conditions for the equipment for this project?

Answer: The Period of Performance can be extended upon mutual agreement between the Government and Contractor to account for any long lead equipment items.

115. Are soil boring reports available? If not, it will be assumed that excavation will be clear of rocks and obstructions.

116. Please confirm whether asbestos or lead is present on this project, and if so, provide the relevant documentation.

117. Please provide the contact information for the building controls contractor.

118. Please provide the contact information for the building fire alarm company.

119. Please provide the site visit attendee sign-in sheet.

Answer: The site visit attendee sign-in sheet will not be provided.

120. Is this project tax exempt?

Answer: The Contractor is responsible for any and all taxes applied to this project.

Please direct all concerns to the Contracting Specialist, SrA Felix Prose at felix.prose@us.af.mil and the Contracting Officer, Darrel Ford at darrel.ford.3@us.af.mil mailto:felix.prose@us.af.mil mailto:darrel.ford.3@us.af.mil