Grant_Bid_Question_Tracker_0006.pdf

Solicitation #140P2025R0102 YELL 310402 - Grant Wastewater Treatment Plant and Collections and Canyon Collections

Questions and Answer

Date Received from NPS

NPS Question No.

Sheet

Detail

Spec

Description (*) Responses Amendment #

11/10/2025 1 Volume 1, Sheet 22, 450G046 We do not find a pipe schedule item for buried PD. Will one be issued? Burried PD piping should be CLDI per specification 33 05 01.02. Assume the same characteristics of burried PRES piping for buried PD piping.

11/10/2025 2 Volume 1, Sheet 23, 450G046 The pipe schedule for PD indicates PVD, however, it references 40 27 --08 which is for SST should it reference 40 27 00.10?

Interior PD should be PVC. Please refer to 40 27 00.10 instead of 40 27 00.08. 4

11/10/2025 3 Volume 1 Sheet G046 33 05 01.02/33 05 01.12.01

The pipe schedule indicates the "RS" gravity sewer is to be per Spec 33 04 01.02 which is cement lined pipe; however, Specification 33 04 01.12.01 for gravity sewer calls for CL53 pipe with ceraminc epoxy lining. Which is correct?

Use specification 33 05 01.12.01 with CL53 pipe with ceramic epoxy lining for the RS at the WWTP to be consistent with pipes throughought the collection system.

11/10/2025 4 Volume 1, Sheet G049 460-ARV-036, 037 are called out to be 1" V750 valves. 1) there is no V750 specified. 2) being on a sewage line there are no ARV's made for sewage under 2". Will a proper specification be issued for these valves or should he 2" V757 be used?

2" V757 air release valves should be used on sewage lines instead of the originally proposed 1" V750.

11/10/2025 5 Vol 1 460-D101 3305-758 Should the buried DIP extend beyond the building footprint before transitioning to HDPE? Buried DIP should extend beyond the building to include the flexible joint detail (3305-

609) before transitioning to HDPE. Use detail 3305-758 for HDPE to DIP transition.

11/10/2025 6 VOL 1 455C134/470D301 3305-609 Are Detail 3305-609 flexible joints required at locations where several restrained joints are required such as the bio-reactor splitter box DWG 470D301 Section B?

Yes, flexible joints should be provided at all locations where a pipe exits a structure or encasement.

11/10/2025 7 Vol 1 455C132, 455C631 Pipe coordinate points #263, 264 and 265 indicate 8" pipe fittings. However, they are connecting to the 6" bri line. Profile L on 6" bri line and the 10" ML line be 6" or is the design intent to untilize a 6" x 8" bull head tee to make this connection?

These pipes should all be 6". #263 should be a 6" BRI tee, #264 should be a 6" BRI plug valve, #265 should be a 10" x 6" ML Lateral.

11/10/2025 8 450 G046 The pipe schedule indicates material transitions will be shown on the drawings. However, we find no such notations for the HDPE/DI. We only find he PW lines to be labeled "HDPE". Is it correct that the other pipes transition approximately 10" outside the structures?

Transitions may be shown on drawings but please refer to pipe schedule pipe exposure column that coincides with pipe material. Transition occurs at facility.

Provide flexible coupling at building. See detail 3305-609 to allow for differential movement then transition to HDPE (see detail 3305-758).

11/10/2025 9 450G049 40 27 02 We find no specification for PRV-475-415 in the intraplant PS valve vault. Would it be a type V716?

PRV-475-415 should be V716. 4

11/10/2025 10 475 -D-401 2331-403 DWG 475-D-401 indicates the 8" vents are to be in accordance with detail 3305-981. This detail cannot be found in the contract documents. Will it be issued?

Detail should be 2331-403 instead. 4

11/10/2025 11 455C524 40 27 02B We find no specification for flap gates for the drain lines. Will one be issued? Valve V690 should have been included in the specification: Type V690 Flap Gate 6 Inches to 96 Inches

type, dual pivot-point hinge arms, hinge arms bronze, hinge pins Type 304 stainless steel, seat bronze and impacted into grooves in body and cover flap, lubrication fittings for each pivot, upper and lower pivot adjustment.

11/10/2025 12 46 66 20 Part 2.01 C.2.c

Section 46 66 20 Part 2.01 C.2.c states the maximum flow per reactor is 0.52 MGD. Our original design was 0.95 MGD per reactor which resulted in the 18 lamp reactor proposed.

This new flow of 0.52 MGD per reactor results in a change from our 18 lamp reactors to our 8 lamp reactors. If the flow is actually 0.52 MGD then the specification will need to be updated for our smaller reactor.

The UV reactor should be designed for a maximum flow of 0.52 MGD. A smaller UV reactor with 8 lamps may be proposed. Specification to be updated: Number of Lamps Per Reactor: 8 or as required to meet maximum flow.

11/10/2025 13 Factor - Project Experience - the solicitation requires us to address several topic (teaming experience, remote work, key trades and previous wastewater plant construction experience) -are we supposed to address each of the four topics for each project we include or provide a general response to each topic?

Each topic needs to be addressed with each project. 4

11/10/2025 14 Factor 5 - Past Performance - can we use a previously completed PPQ or CPARS. Only previous PPQ's will be accepted. The Government will pull CPARS records as part of the evaluation process.

11/10/2025 15 The solicitation includes several forms (Project Experience Form, Project Experience Questionnaire, PPQ, General References) but they are not in a fillable format. Will you please provide the forms in a fillable format?

The word versions of each of these documents is attached. 4

11/13/2023 16 Is there a planholders list available for this project? Please refer to previous amendment issued for a list of site attendees otherwise no planholders list available.

11/13/2023 17 Is there an online portal/website for accessing future addendum and other bid documents? All documents and amendments are on SAM.gov 4

Questions and Answer

Date Received from NPS

NPS Question No.

Sheet

Detail

Spec

Description (*) Responses Amendment #

11/13/2023 18 Valve Type “V750” (called out on Valve Schedule 2/Drawing 450G049) was not found in Specification 40 27 02. Please provide.

Use Valve Type "V757" in 40 27 02. 4

11/13/2023 19 Specifications 33 05 01.02 & 40 27 00.01, both for Ductile Iron Pipe, have conflicting notes on Mechanical Wedge Action Type Joints for fittings. 33 05 01.02 does not allow for these joints, only at approval of Engineer (Part 2.01E-2.c). 40 27 00.01 allows for these joints with piping less than 16” in diameter (“Fittings” section). Please confirm these joints are allowed per 40 27 00.01.

Both specifications allow mechancial wedge joints for pipes under 16" which applies to all pipes in the collection system and WWTP. These specifications are not conflicting because they apply to different areas of the project. The criteria for use of wedge action joints is layed out in the specifications.

11/13/2023 20 For preparation of Volume II, which version of Standard Form 1442 should be used — the three-page version included in Sol_140P2025R0102 or the two-page version included in B08_140P2025R0102 ?

The SF 1442 provided as part of the solicitation shall be utilized - 3 page version. 4

11/13/2023 21 The NPS Small Business Subcontracting Goals include race- and gender-based classifications;

however, under the new DBE standards, those classifications have been removed.

Additionally, all Wyoming DBEs and SBEs have been decertified, leaving none currently available for solicitation. With the SBA website also offline, posting projects is not possible.

Given these circumstances, can you clarify how bidders can demonstrate a good faith effort to meet the current subcontracting goals?

The NPS has not been required to remove the requirements as of this date even though the requirements may changed with the new "FAR overhaul". Until such time, Offerors shall continue to recruit potential small businesses to meet the required socio-economic goals as presented. If the Offeror is a small business, a subcontracting plan is not required.

11/13/2023 22 One of the specifications states a requirement for Gold Certification with Inductive Automation. Is this a solid requirement? We have familiarity with Ignition (Inductive’s SCADA platform) and have implemented it in the past, but we do not hold the Gold Certification.

Gold Certification for Integrators will be a requirement for this project. 4

11/13/2023 23 Kubota will not allow use of their membrane by other membrane bioreactor (MBR) equipment OEMs like Cloacina, effectively blocking us or other MBR solution providers out from bidding the opportunityy. We have a flat plate/sheet membrance equivalent to Kubota from Toray, and can also offer hollow fiber membrane "as equals" from DuPont or Veolia whom are the most installed MBR membrances in the country. Please advise.

Or equals will be considered for this project. The membrane equipment supplier (MES) will be responsible for coordinating design changes as required to accommodate alternative membrane equipment.

11/13/2023 24 Drawing #101 176866 Sheet 97 of

Detail 1 has a comment: "Pipe screen, See Note 1" yet there is no "Note 1" on the page.

Please provide "Note 1" for the pipe screen detail.

NOTE 1. PROVIDE ADS CONNECTOR PIPE SCREEN, OR EQUIVALENT, TO PREVENT

DEBRIS AND ROCKS FROM ENTERING PIPE DRAIN.

11/13/2023 25 Drawing #101 176866 Sheet 111 of

Detail 1 has a comment: "4" Removable Bollard, TYP 4, Locate at Corners of Concrete Pad".

However, there is no removable bollard detail provided. Please provide removable bollards.

The bollards do not need to be removable. The standard bollard detail, 3305-954, may be used.

11/13/2023 26 Is there an online portal/website for accessing future addendum and other bid documents? Please see SAM.gov 4

11/13/2023 27 Section 09 96 35 - Part 2 Products, Item 1 CRC-4

Raven is listed as the Basis of Design (BOD) "or equal" is allowed. Would you prefer that any "or equal" products be pre-approved? We're planning to submit Corobond 100, Dura-Plate 2300 and Dura-Plate 6100 for consideration. I'm happy to complete a formal substitution request and provide case histories if that would be helpful.

"Or equal" products allowed unless otherwise stated. Manufacturer is responsible for checking that the product will meet the specification. "Or equal" products will be evaluated as part of the construction submittal review process.

11/13/2023 28 Section 2.03 - Coating Systems:

CRC-4

The specification calls for 1) Moisture resistant epoxy primer (2 MDFT), 2) 100% solids epoxy surfacer/filler; 3) Corrosion Barrier Lining: One coat of trowel-grade, 100% solids, chemical-resistant, amine-cured epoxy lining material (125 MDFT). Could you please confirm whether the Corrosion Barrier Lining must be trowel-grade or if a plural spray application would be acceptable?

Either trowel-grade or plural spray application is acceptable. 4

Questions and Answer

Date Received from NPS

NPS Question No.

Sheet

Detail

Spec

Description (*) Responses Amendment #

11/13/2023 29 On the Plan Sheet Titled Grant Village Site Map, it shows an area "5" that could likely be used for an onsite batch plant. That same sheet shows a water line to that area. Is that water potable and can we use it for batching concrete? If so do we know how many gallons per minute we can get out of it?

Water line is not active. Contractor should plan on having to haul water to whichever pit they decide to use for a batch plant. We can provide access to a fire hydrant in the Grant area where they can take water.

11/13/2023 30 We received information from a concerned design-build improvement contractor in regards to the dewatering facility ground improvements. Here is their question: We are evaluating the ground improvement for the dewatering facility. The ground improvement specifications, attached to this email, have performance criteria that needs to be met for the design and installation. One of the criteria in the performance spec sections requires that ground improvement have a minimum depth of 35 feet or Elevation 7,785 feet. Based on the boring logs in the vicinity of the dewatering facility, see attached profile, it will be very challenging, if not impossible, to improve the ground to that depth because the blow counts. Specifically, boring SW-G-04 has very high blow counts and are not practical for ground improvement.

Whether the design-build contractor is installing stone columns or rammed aggregate piers, it will be very challenging to meet the depth requirements. We typically would try to predrill some of the higher blow counts to help with penetration, but because of the extensive depth of dense to very dense soil is not feasible. Even using high pressure air or water, which the stone column installers may use will have difficulty and likely cause quite a bit of collateral damage to the working pad and result in a lot of clean up. It is our opinion that this type of performance specification may result in a large change order to the project.

We recommend seeing if the geotechnical engineer would be okay with an approach of driving the mandrel to practical refusal and build the piers from that depth. It is likely that in some areas we can get to 35 feet, but some of the layers are dense to very dense and we’ll have mandrel refusal.

If needed we would be happy to facilitate a call between the Design engineer and this specialty contractor, just let us know and I can provide contact information.

Subsurface information is not available within the footprint of the dewatering facility.

The requirement in Article 3.02.A.5.a of Section 31 23 13.31 that ground improvement elements be terminated no shallower than the target depth specified in Table 1 will be relaxed if information showing that refusal materials encountered above the target depth are consistent below that depth and not underlain by looser materials.

11/13/2023 31 In the summary of work under Item (b), it states that we are to empty and dewater Aeration Pond #1 and Aeration Pond #2. It further states that we are to dewater the sludge before it goes into the drying beds to 12 percent. What volume of sludge in the ponds should each contractor carry in their proposal?

Aeration Pond #1 and Aeration Pond #2 can hold 1.8 MG. It should be assumed that contractors will need to dewater 1.8 MG of sludge at 1,500 mg/L TSS (0.15% solid).

11/13/2023 32 Will product substitutions need to be provided during the solicitation phase or after contract award.

Per 52.211-6 Brand Name or Equal (AUG 1999) provides that "to be considered for award, offers of "equal" products, including "equal" products of the brand name manufacturer, must (1) meet the salient physical, functional, or performance characteristics specified in the solicition; (2) clearly identify the item by i) brand name, if any; and ii) make or model number; (3) include descriptive literature such as illustrations, drawings, or a clear reference to previously furnished descriptive data or information available to the Contracting Officer; and (4) clearly describe any modifications the Offeror plans to make in a product to make it conform to the solicitation requirements. Mary any descriptive material to clearly show the modifications." This information may be supplied with the Offeror's proposal for consideration during the evaluation phase of the solicitation. The Contracting Officer will evaluate "equal" products on the basis of information furnished by the Offeror or identified in the offer and reasonably available to the Contracting Officer. The Contracting Officer is not responsible for locating or obtaining any inforamtion not identified in the offer.

11/19/2025 33 44 46 22 Please confirm if screw press manufacturer is responsible for supplying the following items in their equipment package:

- Dewatered cake conveyor (HUBER can provide their proprietary Ro8T shafter screw conveyor for this application.

Screw Press manufacturer is not responsible for supplying the dewatered cake conveyor for this application. 44 46 13.02 Screw Conveyor System outlines the requirements for the dewatered cake conveyor.

Questions and Answer

Date Received from NPS

NPS Question No.

Sheet

Detail

Spec

Description (*) Responses Amendment #

11/19/2025 34 44 46 22 2.04.C.2.a: Please confirm required performance values as those listed in this paragraph (69 gpm @ 1.7%) conflict with the flow values listed on plan drawing 101 sub sheet 450G045 (85 gpm @ 0.9%). If 1.7% is the correct design value, please revise the hydraulic loading to 50 gpm. 50 gpm would match the specified flow of the Canyon project.

Performance criteria should be 50 gpm at 1.7% solids. Specification 44 46 22 and drawing 450G045 will be updated accordingly.

11/19/2025 35 44 46 22 2.04.D.1.g: Please change minimum drain line diameter to 6-inches to match the dimensions of the named manufacturer’s machine

The spec calls out a minimum of a 4" drain line. A 6" drain line is permitted as written. 6

11/19/2025 36 44 46 22 2.04.D.3.b: Please confirm the available water pressure to the Grant facility. Per 2.03.D.3.b the washwater supplied to screw press is supplied from the non-potable water pumps at the process building. These are designed to deliver 100 psi to the screw press for cleaning.

11/19/2025 37 44 46 22 2.05.B.1.b: This paragraph outlines a NEMA 12, 304 stainless steel enclosure for the screw press control panel and section 2.05.C.1.b outlines a NEMA 4X 304 stainless steel local control station. On drawing 35, dewatering building room that control panel and local control station are mounted in, is outlined to have NEMA 4X, 316 stainless steel control panel. Please confirm that screw press control panel and local control station shall include NEMA 4X, 316 stainless steel enclosures.

NEMA 4X, 316 SS will be required per the Site Area Classification and Materials Selection table 450G074. Specification 44 46 22 will be updated to match.

11/19/2025 38 44 46 22 2.05.D: This paragraph outlines the PLC, OIU, managed ethernet switch, and UPS as specified in specifications section 40 99 90. Section 40 99 90 does not appear to outline specific make and models for these components. Please confirm that the manufacturer standard Allen-Bradley CompactLogix PLC, PanelView Plus 7 7” OIU, Phoenix or equal Ethernet switch, and a Phoenix UPS are acceptable for the screw press control panel. If not, please confirm the make and models that are acceptable.

Specification 40 99 90 outlines requirements for typical PLC, OIU, managed ethernet switch and UPS requirements. Manufacturer is responsible for selecting and providing an appropriate make and model in accordance with the requirements of the specifications and compatability with equipment.

11/19/2025 39 44 46 22 2.05.D.8.c.1: This paragraph outlines the VFD shall comply with section 26 29 23. Section 26 29 23 does not appear to outline a specific make or model for the VFD. Please confirm if the manufacturer standard Allen-Bradley PowerFlex 525 VFD is acceptable. If not, please confirm the make and model that is acceptable.

Specification 26 29 23 outlines requirements for typical VFD requirements.

Manufacturer is responsible for selecting and providing and appropriate make and model in accordance with the requirements of the specifications and compatability with equipment.

11/19/2025 40 SCREW PRESS INDUCTION MOTOR DATA SHEET: Additional motor requirements listed in referenced section 26 24 19 and the motor grounding mentioned on this data sheet would require the screw press manufacturer to provide a non-standard, custom motor as HUBER’s standard Nord motor does not utilize these special features. A custom motor like this has the potential to significantly increase machine cost and lead time as well as availability problems should it need to be replaced in the future.

Manufacturer may take exception to motor grounding and requirements in specification 26 24 19 that are not standard with a provided explanation.

11/19/2025 41 450 G042 Please clarify if the intention in utilizing a DS storage tank upstream of the screw press is to feed the unit in batches. This is not recommended and may have a negative impact on performance, as optimal dewatering system operation requires that the system has adequate time to reach steady state.

Digested sludge is pumped from the aerobic digesters to the Screw Press Feed Tank and then the Screw Press Feed Pump will convey sludge at a higher head condition to the screw press. This dual-pumping arrangement will be continuous and not a batch operation. This arrangement is due to the relative locations of the aerobic digesters and the screw press.

11/19/2025 42 459N029 Please note that PSH 480-212 is shown in the drawings as a pressure switch. HUBER will supply a pressure transmitter instead that sends an analog 4-20mA signal to the screw press main control panel. This is acceptable.

Questions and Answer

Date Received from NPS

NPS Question No.

Sheet

Detail

Spec

Description (*) Responses Amendment #

11/19/2025 43 459N029 Please note that 480-SV-223 and 480-PSL-224 will be located in the screw press manufacturer supplied pneumatic control panel. The tubing between the pneumatic panel and cylinders to be installed by contractor. Ball and butterfly valves boxed in red below are to be provided by others.

This is acceptable.

11/19/2025 44 Drawing 241 shows the inclined screw conveyor powered and controlled by 375-MCC-001 and not included in the screw press scope. The drawing also appears to show some control devices for the inclined screw conveyor connected to the screw press control panel 375-LCP-

200. Specification section 44 46 22 does not appear to outline any connections between the screw press control panel and control devices for the conveyor. Please confirm that all control devices for the inclined screw conveyor and connections to these devices shall be provided by others

The control of the inclined screw press will be coordinated by the inclined screw conveyor manufacturer and will go through the plant PLC, not the screw press panel.

11/19/2025 45 480D101 Please note that the screw press, when empty, has a weight of 8,200 lbs. Is the intention to use the monorail shown in this drawing to lift the entire machine during installation? Please confirm how screw press will be brought into the sludge dewatering building during installation.

Contractor will coordinate installation of screw press. The monorail is for removing pieces for maintenance and primarly used for moving totes. The whole screw press does not need to be lifted by the monorail.

11/19/2025 46 480D901 Flushing T-connection (4027-182) at screw press inlet is discouraged. Utilization of an elbow in this fitting’s place will decrease the probability of floc shear, and optimize system performance.

Sludge feed piping to the screw press that is elevated above the screw press inlet is not recommended. Piping configurations such as this can exert extra pressure on the screw press inlet and create siphoning issues when air becomes entrained in the elevated segments.

Flushing tee connection at inlet will be removed and replaced with elbow per manufacturer's recommendation. An air release valve will be added on the elevated piping to reduce siphoning, additional pressure is not expected to cause issues on screw press operations. Engineer has elevated piping prior to screw press on previous projects and has not observed any issues.

11/19/2025 47 480D301 The screw press is shown with end covers. These covers are aesthetic only, and not necessary for proper machine operation. Please confirm if these covers are desired.

Please confirm reasoning for use of eccentric reducers shown on each end of the flocculation pipe. HUBER recommends the use of concentric reducers to increase each reducer's ease of manufacture.

No end covers are required. Eccentric reducers will be used to prevent air trapping and allow smoother flow of sludge.

11/19/2025 48 40 90 00 Specification section 40 90 00 is not referenced to in any of the equipment sections (44 42 30, 44 42 31, and 44 46 22). Theis section outlines coordination meetings, spare parts, control requirements, etc. Please confirm that requirements outlined in this section do not apply to sections 44 42 30, 44 42 31, 44 46 22.

No, the referenced sections do not need to comply with 40 90 00. However, per the specification language packaged systems must comply with specification 40 99 90 Packaged Control Systems.

11/19/2025 49 40 96 00 Specification section 40 96 00 is not referenced to in any of the equipment sections (44 42 30, 44 42 31, and 44 46 22). This section outlines software programming requirements. Please confirm that requirements outlined in this section do not apply to sections 44 42 30, 44 42 31, 44 46 22.

No, the referenced sections do not need to comply with 40 96 00.

11/19/2025 50 44 42 30 2.01.C.4: The drawings indicate a channel width of 2 ft 8 in, whereas the specifications list 2 ft 6 in. The HUBER RPPS requires a minimum channel width of 32 inches; therefore, the channel width shown in the contract documents must be updated accordingly.

Assume a minimum channel width of 2'-8" (32 inches). Specification 44 42 30 will be updated accordingly.

11/19/2025 51 44 42 30 2.01.E.9: The maximum upstream water level for proper RPPS operation is 21.42 inches. Specification calls out 21.4, water level is not expected to be this high. 6 11/19/2025 52 44 42 30 2.02.E.2.b: The specification requires a minimum motor size of 2 hp. HUBER standard design for this equipment utilizes a 1.5 hp motor, which is fully adequate for the intended duty and should be accepted as a compliant alternative.

A 1.5 hp motor is acceptable. Specification will be updated.

11/19/2025 53 44 42 30 2.06.B.1: This paragraph outlines NEMA 4X FRP control panels. On drawing 35, the electrical room that control panels are mounted in, is outlined to have NEMA 1, painted steel control panels. Please confirm fine screen control panels shall include a NEMA 1, painted steel enclosure.

NEMA 1 painted steel is acceptable if installed in the electrical room. Specification 44 42 30B will be updated to match Material Selection Table on sheet 450G074.

Questions and Answer

Date Received from NPS

NPS Question No.

Sheet

Detail

Spec

Description (*) Responses Amendment #

11/19/2025 54 44 42 30 2.08.C.1: The screen shall not be tested while in its operating (vertical) position due to the inherent safety risks. HUBER requests this requirement be removed or revised.

"in its operating position" will be removed from the specification. Manufacturer is still expected to comply with 3.02 Field Quality Control and test for 6 hours of continous operation when in place.

11/19/2025 55 44 42 30 2.06.C.2: This paragraph outlines utilizing an ultrasonic level sensor but does not specify a make or model. Please confirm if the manufacturer standard Siemens STH sensor and HydroRanger LT500 are acceptable. If not, please confirm the make and model that is acceptable.

Manufacturer is responsible for selecting and providing and appropriate make and model in accordance with the requirements of the specifications and compatability with equipment.

11/19/2025 56 44 42 30 2.06.C.4.a.3: This paragraph outlines a PLC but does not specify a make or model.

Additionally, specification section 40 99 90 does not appear to outline a specific PLC or OIU that is required. Please confirm if the manufacturer standard Allen-Bradley Micro850 PLC and a 4” PanelView 800 are acceptable for the fine screen control panels. If not, can you confirm the make and models that are acceptable.

Manufacturer is responsible for selecting and providing appropriate make and model in accordance with the requirements of the specifications and compatability with equipment.

11/19/2025 57 44 42 30 2.06.C.4.a.13: This paragraph outlines a screen motor starter. Huber standard for the RPPS is to use a VFD for motor controls. Can you confirm the motor controller type that is to be included.

If a VFD is used a motor starter is not required. Added "if VFD not used" to specification.

11/19/2025 58 44 42 30 3.02.A: HUBER cannot operate the screen dry for six continuous hours, as such operation leads to premature wear and unnecessary mechanical stress. A modified commissioning procedure is requested.

The specification does not call out for testing the equipment dry, manufacturer may test the equipment with clean water or raw sewage.

11/19/2025 59 Fine Screen 1 & 2 Induction Motor Data Sheet HUBER will supply a Variable Frequency Drive (VFD) in place of a constant speed drive. Use of a VFD provides significantly improved operational control and enhances long-term equipment performance.

A VFD is acceptable. Induction Motor Data sheet will be updated to remove constant speed requirement.

11/19/2025 60 460D301 Please confirm height of dumpster after RPPS. A typical 2 CY dumpster will be provided. Height is expected to be 3' to 4'. 6 11/19/2025 61 460P901 The drawing indicates a 2-inch wash water connection. HUBER requires a 1 1/4-inch wash water connection and requests the design be revised to reflect this.

A 1-1/4" connection is acceptable. Sheet 460D301 has a note calling out to coordinate connections with fine screen manufacturer.

11/19/2025 62 450G074 This drawing appears to state that enclosures in the headworks room shall be NEMA 7, 316 stainless steel. Can you confirm if cast aluminum, NEMA 7 local control stations are acceptable in lieu of stainless steel.

NEMA 7 316 SST enclosures are required for electrical enclousres in the headworks room per 450G074.

11/19/2025 63 44 42 31 2.07.C.1: Please confirm whether the Ro3.1-specific information is required for the RotaShield, or can we remove it from the septage receiving section?

If these requirements are not relevant to the proposed RotaShield they can be removed.

11/19/2025 64 44 42 31 2.03.E.1: In Section 44 42 31, it specifies that a rock trap and flow meter are to be installed on the RotaShield inlet to ensure proper operation of the equipment. Please confirm where the rock trap and flow meter are shown in the plans. Given the limited space between the inlet and the truck connection, how are these components intended to be applied and used in this layout?

Manufacturer to provide rock trap as specified and to fit into existing layout. The flow meter was assumed to be required based on manufacturer provided PIDs, if flow meter is not required for operation of the equipment it can be removed.

Manufacturer is responsible for providing all necessary instrumentation to operate the Septage Recieving Equipment.

11/19/2025 65 44 42 31 2.08.B.1.p: Outlines a NEMA 4X stainless steel enclosure. On drawing 35, the electrical room that the control panel is mounted in, is outlined to have NEMA 1, painted steel control panels. Please confirm the septage receiving control panel shall include a NEMA 1, painted steel enclosure.

NEMA 1, painted steel enclosure can be used for control panels in the electrical room.

Specification wll be updated.

11/19/2025 66 44 42 31 2.08.B.1.c: Outlines a PLC but does not specify a make or model. Additionally, specification section 40 99 90 does not appear to outline a specific PLC or OIU that is required. Please confirm if Huber standard Allen-Bradley Micro850 PLC and a 4” PanelView 800 are acceptable for the septage receiving control panel. If not, please confirm the make and models that are acceptable.

Manufacturer is responsible for selecting and providing the appropriate make and model in accordance with the requirements of the specifications and compatability with equipment.

11/19/2025 67 44 42 31 2.08.B.5: Outlines a pressure transmitter in accordance with section 40 99 90. Section 40 99 90 does not appear to outline a specific make or model for the pressure sensor. Please confirm if Huber standard APG PT-500 pressure sensor is acceptable. If not, please confirm the make and model that is acceptable.

Manufacturer is responsible for selecting and providing the appropriate make and model in accordance with the requirements of the specifications and compatability with equipment.

11/19/2025 68 458E620 For the RotaShield, please clarify the intended purpose of instruments 460-FIT-002 and 460- PIT-003? Are these signals intended to be connected to or monitored by the RotaShield control panel?

460-FIT-002, and 460-PIT-003 are intended to transmit flow and pressure data from the flow and pressure meter to the control panel. These were included based on PIDs provided by Huber during the design phase. If transmitters are not required for operation of the equipment they can be removed. Manufacturer is responsible for providing all necessary instrumentation to operate the Septage Recieving Equipment.

11/19/2025 69 460D901 The wash water connection shown in the plans for the RotaShield is not in the standard location for this equipment. Please clarify the reasoning and responsibilities for why it is shown on top of the unit? We will provide our standard drawings to illustrate the correct connection location.

Sheet 460D301 Note 1 calls out for contractor to coordinate with manufacturer on wash water connections, connections can adjusted as required to meet manufacturer's requirements.

11/19/2025 70 459N001 We noticed a connection in the plans showing the RotaShield tied into a blower labeled as the “septage blower.” This configuration is not standard, as Huber does not require or utilize a blower for RotaShield operation. Please verify who will be supplying this equipment and how it is intended to be controlled?

Septage blower is provided to mix and aerate the septage holding tank and is tied into the plant control panel. This is not part of the septage receiving station package.

11/19/2025 71 460E101 For the RotaShield, please clarify the intended purpose of instruments 460-FIT-002 and 460- PIT-003? Are these signals intended to be connected to or monitored by the RotaShield control panel? See response to question 68.

11/19/2025 72 450G044 The Septage Receiving Station section lists the equipment at 400 GPM, but Spec Section 44 42 31 states we’re sizing for 700 GPM. Please confirm which flow rate is correct. Assume 700 gpm. 450G045 to be updated accordingly to match 44 42 31.

Questions and Answer

Date Received from NPS

NPS Question No.

Sheet

Detail

Spec

Description (*) Responses Amendment #

11/19/2025 73 460D301 Please confirm the dumpster height required for the Wash Press discharge in the septage receiving area.

A typical 2 CY dumpster will be provided. Height is expected to be 3' to 4'.

11/19/2025 74 459N001 Appears to show the septage blower as outside of the septage receiving scope. Please confirm the septage blower shall be powered and controlled by others. See response to question 70.

11/20/2025

75 33 05 01.02-ADD #4

ADD#4 eliminated the cement lining in Specification 33 05 01.02 and inserted P401 lining.

This changes almost all of the buried DIP where this specification is referenced on the pipe schedule. However, the revised pipe schedule colmn which indicates the lining material was not changed from "CLDI" to "CELDI". Please confirm that all pipe on the pipe schedule referencing Spec 33 05 01.02 should be P401 lined. Please also note that while P401 is recommended for all non-potable, sewer and drain applications, it is NOT recommended for potable water (PW) and thus PW should remain cement lined (CLDI).

CELDI should be used for all non-PW applications. Piping schedule and specifications are updated accordingly.

11/20/2025

76 46 66 20

1.04.A.8 -This section requires fully documented ladder logic listings, I/O printouts, and cross referenced printouts documenting programmable controller software program. Cannot provide as Trojan's system runs off of an embedded program, not a PLC ladder. Please remove this requirement. Vendor may take exception to this requirement with the provided explanation.

11/20/2025

77 46 66 20

1.04.A.17 - This section indicates estimated power consumption (kWh), harmonics, generation and power factor for individual UV reactor at 50 percent, 75 percent and 100 percent ballast power levels. Lower power level for this chamber type is 60%. Please change the minimum estimated power consumption to 60%. Updated specification to say "minmum percent" instead of 50%.

11/20/2025

78 46 66 20

1.04.A.20 - This section indicates Ethernet Communication Interface: a) Status Signals; b) remote control commands. Mention of Ethernet communications; please clarify which flavor of Ethernet is required, Allen BradleyEthernetIP, Modbus TCP or Profinet?

Allen-Bradley Ethernet IP is preferred. However, PIC may propose a control system that uses Modbus TCP or Profinet.

11/20/2025

79 46 66 20

1.05.B - Provide (B) Delivery and Storage: 1) UV supplier representative will be available for assistandce upon delivery and shall assist Contractor as follows: a) inspecting equipment upon arrival at site to ensure equipment has been delivered in good order and that no damage has occurred during delivery. b) Identification of and notification to Contractor and Contracting Officer of discrepancies between shipping lists and equipment received. Trojan Representative will not be present for delivery. However, we would email contractor or customer instruction of storage requirement for the UV system. Please remove the requirement for a UV Supplier Representative to be present at delivery.

Vendor does not need to be present at delivery. Adjusted language in the specification as follows: "UV Supplier representative will be available for assistance upon delivery and shall assist Contractor as follows: Provide guidance for inspecting equipment upon arrival at Site to ensure equipment has been delivered in good order and that no damage has occurred during delivery."

11/20/2025

80 46 66 20

2.01 C.2.c requires a maximum flow per reactor: 0.52 MGD. Our original design was 0.95 MGD per reactor which resulted in the 18 lamp reactor proposed. This new flow of 0.52 MGD per reactor results in a change from our 18 lamp reactors to our 8 lamp reactors. If the flow is actually 0.52 MGD then the spec will need to be updated for our smaller reactor. Note that Drawing #101, Sheet 20 shows a peak flow per unit of 0.94 MGD. Please confirm the flow.

The UV reactor should be designed for a maximum flow of 0.52 MGD. A smaller UV reactor with 8 lamps may be proposed. Specification to be updated: Number of Lamps Per Reactor: 8 or as required to meet maximum flow. Sheet 450G044 has been updated accordingly.

11/20/2025

81 46 66 20

2.03.H.2.f.3) - the operator interface shall be menu driven and shall display the following system information when prompted: reactor status, individual lamp status, lamp operating hours, RED (dose), UV intensity, power, level, alarms, alarm history. Individual lamp status is not provided on the CPP HMI. Lamp hours are tracked as a system and if an indvidual lamp fails this will be indicated by a specific lamp alarm. Please remove the requirement for individual lamp status shown on the OIT. Vendor may take an exception to this requirement with an explanation provided.

11/20/2025 82 46 66 20

2.04.A.4 - Software Documentation: Our system does not use a PLC; therefore, we cannot supply. Please remove this requirement. Vendor may take an exception to this requirement with an explanation provided.

11/20/2025 83 46 66 20

2.04.B.2.a Communications between the UV system and Plant SCADA shall be via Ethernet.

Same comment as above about the flavor of Ethernet.

Allen-Bradley Ethernet IP is preferred. However, PIC may propose a control system that uses Modbus TCP or Profinet.

11/20/2025

84 40 99 90

1.01.E.1 provide a package system PLC and HMI that shall interface to, and be integrated with, the PCS for supervisory control set points, command initiating points, monitoring and alarming as defined in the specific Supplier Equipment Specification, and programming requirements of the process control descriptions. Provide documentation of a completed FDT for the control panel and PLC software. Our system does not use a PLC; therefore, we cannot supply. Please remove this requirement. Vendor may take an exception to this requirement with an explanation provided.

11/20/2025

85 40 99 90

This entire section appeaers to be written for PLC's. We take exception as we are providing a pre-defined product that cannot be manipulated or changed from a programming perspective. The testing of I/O, etc. is good and having someone available and knowledgeable of the product to assist with integration is of no concern. Vendor may take an exception to this requirement with an explanation provided.

11/20/2025

86 40 99 90

2.05.C.1.a - communication via communication module that plugs in to the main processor rack. 1) Modicon to/from PCSPCS data communicated over network via Modbus TCP/IP. 2) Rockwell Automation to/from PCSI/PCSPCS data communicated over network via EtherNet I/P for Rockwell Automation PLCs. We can do both Modbus TCP and Allen Bradley EthernetIP, please clarify preference for our microprocessor communications to SCADA. Vendor may take an exception to this requirement with an explanation provided.

11/20/2025

87 40 99 90

2.05.C.1.d.2) - The ControlLogix PLC supports EIP user-defined datatypes (UDT). Our product does not have UDT support for communications (produced/consumed); instead is Class 1 communications as it will show up within the I/O tree as a generic ethernet device;

Supplemental Manual for integration discusses this. Vendor may take an exception to this requirement with an explanation provided.

Questions and Answer

Date Received from NPS

NPS Question No.

Sheet

Detail

Spec

Description (*) Responses Amendment #

11/20/2025 88 40 99 90

Mentions UPS in various spots. Trogan cannot supply a UPS for the CPP's. Please remove the requirement for a CPP UPS.

UV system will be powered by a backup generator during power outages. Vendor may take an exception to the UPS requirement with an explanation provided.

11/20/2025

89 40 99 90

2.04.D - where a control panel is specified under this section, panels shall be UL 508A labeled and unless noted otherwise, shall be rated for an available fault duty of 42,000 amps at 480 volts or 22,000 amps at 240 volts or less. Our reactor with Wiping rated for 5kA. Vendor may take an exception to this requirement with an explanation provided.

11/20/2025

90 40 99 90

2.04.G - Control Power Source: a) One 120V ac, UPS supplied circuit, for control power source: Dual, redundant with diode auctioneered outputs and automatic switching between power sources, one for PLC and DC power and one for PLC output and input control power.

b) provide control power transformers as required for the load. c) provide direct current power supplies, as required for the load. Supplier shall provide sizing calculations in submittals. d) UPS power source for PLC and derived loop power as defined above, supplied to each control panel. CPP only accepts a single 208-240VAC power source used to power all devices in panel. No UPS can be provided in CPP. See response to 88.

11/20/2025

91 40 99 90 2.05.C.2 Ethernet Communication with HMI and other equipment supplied by the packaged system. For our system the HMI connects to P40 board via DB9 serial connection. Vendor may take an exception to this requirement with an explanation provided.

11/20/2025 92 40 99 90

2.05.C.2.b Ethernet Switches: no ethernet switch is provided, SCADA ethernet connects directly to P40 daughter board. Vendor may take an exception to this requirement with an explanation provided.

11/20/2025 93 40 99 90

2.05.D.2 Panel Layout: Our product ia locked design, no future/spare terminals/parts/space will be provided. Vendor may take an exception to this requirement with an explanation provided.

11/20/2025

94 101 Sheet 20

Disinfection - peak flow per unit: 0.94 MGD. This flow contradicts the specified flow of 0.52 MGD per unit per Section 46 66 20. The flow of 0.94 matches the reactor design and our preliminary sizing. Please confirm if the flow is to be 0.94 MGD/unit or 0.52 MGD/unit.

The UV reactor should be designed for a maximum flow of 0.52 MGD. A smaller UV reactor with 8 lamps may be proposed. Specification to be updated: Number of Lamps Per Reactor: 8 or as required to meet maximum flow. Sheet 450G044 has been updated accordingly.

11/20/2025

Section K Reps and Certs include clause 52.230-1 Cost Accounting Standards Notices and Certification (June 2020). We have been researching this clause since we are unfamiliar with it and are wondering if it applies to this project? In general, we find that this clause applies to negotiated contracts and is usually exempt for sealed bid contracts. Our understanding is this does not apply to a "firm fixed price contract on the basis of adequate price competition (aka multiple bidders) without submission of certified cost or pricing data." Please confirm if this FAR clause is or is not applicable to this project. Yes this FAR clause is applicable to this project.

96 44 46 13 02 The Shaftless Screw Conveyor Induction Motor Data Sheet included in this section states:

Hazardous Location: Furnish motors for hazardous (classified) locations that conform to UL 674 and have an applied UL listing mark. This contradicts Section 44 46 22's data sheets for the screw press, air compressor, and booster pump which all require unclassified motors.

Please confirm that the area classification rating for the screw press dewatering room will be non-hazardous/unclassified.

If all the buried DIP per 33 05 1.02 is being revised to P401 lining per Add #3, should all the corresponding interior systems covered by Specification 40 27 00.01 also be revised to P401?

98 Where can we find the schematics for the Septage Blower, Septage Metering Pumps, W2 Booster Pump, Scum Skinner, Submersible Pumps, Screw Press Feed Pump, Inclined Screw Conveyor shown on Sheets 206 through 210/589. We are looking for references to "Standalone Motor Starter" and "Located in MCC" on these drawings but we couldn't find clarification anywhere.

99 Sheet 177 of 589 458E601 The feeder between GRT-SES-01 and 465-ATS-100 is shown to be a 3-Phase, 3-Wire. Is this correct: Is the neutral stopping at the Service Entrance Switchboard GRT-SES-01?

100 Sheet 177 of 589 458E601 Standby Generator is shown as a 277/480v, 3-Phase, 4-Wire Unit but the Feeder between the Gen Set and Automatic Transfer Switch 465-ATS-100 is shown to be a 3-Phase, 3-Wire. Can you please clarify.

101 Sheet 177 of 589 458E601 Is 465-ATS-100 to be 3-Phase, 3-wire?

102 455C521 It shows the monitoring well detail. On that sheet, Keynote 1 says per Specification Section 33

21 13.16. We cannot find this specification section in the contract documents. Can you please provide additional information?

103 For the underground piping heading to the optional Dewatering building for this contract we have been unable to find any delineation of what is the base bid and what is the alternate.

Could you please provide a drawing indicating where the option starts/stops?

104 458E601 "Electrical One-Line": 465-ATS-100 is shown as 2000A rated. This is fed by a 1600A 100% rated breaker and feeds a downstream 100% rated 1600 amp breaker. The transfer switch will be rated 100% and is also noted in Specification 26 36 23 2.01 B17.

Questions and Answer

Date Received from NPS

NPS Question No.

Sheet

Detail

Spec

Description (*) Responses Amendment #

105 26 36 23.2.04 This specification requires a PQ Meter on the Load of the ATS although it is not shown on the drawing E458E601 for 465-ATS-100. A PQ meter is shown on 458E601 one-line downstream in 465-SWBD-001. Having two PQ meters would be redundant, is it acceptable to eliminate the meter in the ATS?

106 458E601 "Electrical One-Line" Feeder breakers with ERMS symbols are to have an Arc Reduction Switch. For the 225A and 100A breakers, the feature doesn't offer a benefit given the small ampacity. If still required, we would need to update the breakers to a 400AF to provide this feature which will be very costly. Is it acceptable to remove the ERMS feature and provide LSI trip only?

107 458E602 465-MCC-100 Electrical One-Line. The upstream 1400AF breaker feeding 465-MCC-100 is called to be 100% rated. Please confirm if the 1400A main breaker in 465-MCC-100 can be 80% rated.

108 458E602 & 458E605 Both show AHF (Active Harmonic Filters) in both MCC"s shown on these drawings. Please provide what size filters are required for 460-MCC-100 and 465-MCC-100. Also please confirm an AHF is not required for 475-MCC-100.

109 01 11 00 Section 1.5A calls for wetland planting and maintenance to be performed by a separate contractor under a different contract. Construction Specification 02 10 00 contains language calling for the contractor to seed and plant. Drawing 455C401 calls for specific plant species and does not reference a separate contract. Please clarify the delineation between work required under this Contract and Work by Others, a markup of the above referenced drawing would be helpful.

PW\JA\NPS\D3167659\4\42 SUMMARY OF WORK

AUGUST 2025 01 11 00 - 1

YELL 310402

SECTION 01 11 00

SUMMARY OF WORK

PART 1 GENERAL

1.1 SUMMARY

A. Section includes the following:

1. Work Covered by Contract Documents.

2. Work Under Other Contracts.

3. Government Furnished Materials.

4. Materials and Work by Others.

5. Contractor Use of Sites.

6. Public Use of Sites.

7. Administrative Access During Construction.

8. Access During Construction.

9. Occupancy Requirements for Buildings.

10. Conduct of Operations.

11. Work Restrictions.

12. Special Construction Requirements.

13. Soils Investigation Report.

14. Unexpected Discovery of Archeological Resources.

15. Construction Materials.

16. Project Clean Up.

1.2 DEFINITIONS

A. Demolish: Means to remove and dispose.

B. Provide: Means to furnish and install.

1.3 WORK COVERED BY CONTRACT DOCUMENTS

A. Project Location:

1. Yellowstone National Park: Grant Village Wastewater Collection System and Treatment Plant, Teton County Wyoming. Canyon Village Wastewater Collection System, Park County Wyoming.