B09_Amd10_QR_Tracker_-_DEVA_318717_Final_0010.xlsx

DEVA 318717

RFP 140P2025R0082 - DEVA 318717

Rehabilitate Furnace Creek & Cow Creek Areas Water & Wastewater Treatment Systems

Issued 10/30/2025.

2 I also noticed the specification under Section 03 calls for Crystalline Cementitious Waterproofing at a minimum 2% dosage rate. Xypex provides this type of crystalline admixture, and we’d like to make sure the intent of the spec is properly carried through to the bidders.

If possible, could you confirm whether this spec is intended for the new or rehabilitated manholes and pump station concrete? That will help us guide contractors and ready-mix suppliers correctly. The intent of the Waterproofing Specification in Section 03 31 30 is for the Lift Station Wet Well only. No other concrete components on the project need waterproofing. It is also worth clarifying that the lift station wet well will also have a corrosion protection coating system, as specified in Section 33 31 05 - Section 2.2 for Manhole Lining. Amendment 0004, Issued 10/30/2025.

3 In the RFP docs under Volume 1, section FACTOR 5 it refers to submitting a SMALL BUSINESS PARTICIPATION from “All Offerors (including small business and other than small businesses) shall submit documentation that address the evaluation criteria defined in the Small Business Participation factor contained in Section M of this solicitation. *Note, Small Business Participation is separate (and a different document) from the Small Business Subcontracting Plan under Volume II”.

The Small Business Participation form is missing from the RFP docs; can you please provide this form. There is no pre-printed form for the Evaluation Factor #5 - Small Business Participation submittal with the Volume I: Non-Price Proposal. Offerors shall submit documentation, limited to 8pgs (preferably) and formatted as seen fit, that addresses the following criteria (as stated in Section M):

• The extent to which firms, as defined in FAR Part 19, are specifically identified in proposals.

• The extent to which Offerors demonstrate substantive commitment to small business firms, such as letters of commitment, Joint Ventures, mentor/protégé agreements, or other demonstrations of commitment (i.e., binding commitments will become enforceable/contractual requirements).

• Identification of the type and variety of work small business firms are to perform (i.e., binding commitments will become enforceable/contractual requirements).

• The extent of participation of small business Prime Offerors and small business Subcontractors in terms of the value of the total acquisition (total contract value) (i.e., binding commitments will become enforceable/contractual requirements).

• The extent to which the Offeror provides detailed explanations/documentation supporting the proposed quantitative participation.

• Extent to which the Offeror complied with requirements of FAR 52.219-8 – “Utilization of Small Business Concerns,” (i.e., binding commitments will become enforceable/contractual requirements).

• Extent to which the Offeror complied with requirements of FAR clause 52.219-9 – “Small Business Subcontracting Plan,” (i.e., binding commitments will become enforceable/contractual requirements).

*Note, the pre-printed form for the Small Business Subcontracting Plan submittal with the Volume II: Price Proposal may be found under Section J, Attachment #5 (document file entitled, B08_Attach5 - Small Business SubPlan.docx). Amendment 0004, Issued 10/30/2025.

**Refer to the following Amendment 0008 Attachments:

- B09_Amd8 - QR22 Attach_Drawing 00-C7.1_Jan2026.pdf

- B09_Amd8 - QR22 Attach_Drawing 02-C5.48_Jan2026.pdf

- B09_Amd8 - QR22 Attach_Drawing 02-C5.64_Jan2026.pdf Amendment 0006, Issued 12/10/2025.

Amendment 0008, Issued 1/16/2026.

The Contract Documents describe excavation, demolition, and waste management requirements throughout Divisions 01, 02, and 31; however, they do not identify any designated on-site disposal or stockpile location for excess soil, unusable material, rock spoils, trench spoils, demolition debris, vegetation, or similar materials generated by the Work.

Sections including 01 74 19 – Construction Waste Management and Disposal, 02 41 00 – Demolition, and geotechnical and monitoring-well specifications state that waste materials must be removed from the Project site and disposed of at a facility acceptable to authorities having jurisdiction. Several sections further state that burning or burying waste on-site is prohibited, and plant materials must either be given to the Tribe or disposed outside of the Park.

The documents do not clarify:

*Whether excess excavated soil (not suitable or not reused) must be removed from the Park entirely *Whether any on-site disposal area exists within Death Valley National Park *Whether NPS intends to designate a location for temporary stockpiling or permanent placement of spoils *Whether clean excess soil may be used elsewhere in the Park at Government direction *Approximate quantities of excess excavated materials anticipated

Because spoil export and disposal can significantly affect trucking, haul distances, environmental compliance, disposal fees, and overall cost—and because all CLINs are lump sum—bidders cannot uniformly price this work without clarification.

REQUEST FOR CLARIFICATION - To ensure fair competition and consistent pricing among all offerors, please clarify the following:

(1) Excess Soil and Trench Spoils.

Sheet 01-G1.15, 16, 17 & 18, in footnote 3, "On-site haul and stockpile: excess trench spoil will be hauled on-site to the mixing table south of the Cow Creek administrative area..." The mixing table is Staging Area 1.

(2) Temporary Stockpile Areas.

For excavated materials (for removal, processing, or re-use) is a combination of the mixing table (staging area 1) and within the 50-foot maximum allowable disturbance limit along the trench. See Sheet 00-C3.12 and Sheet 00-C7.0.

(3) Quantities.

Estimate that overall "excess" material will be approximately 30,000 CY (base). This is estimated by linear feet of trenching, multiplied by a 6-foot-wide trench, and then by 16 inches of material that will not be returned to the trench. Of the 30,000 CY, estimate that 700 CY is unsuitable for backfill (export off-site), 300 CY is contaminated or restricted for reuse (export off-site), and 29,000 CY is excess spoil to stay on-site at the mixing table (staging area 1) or in the 50-foot max allowable disturbance area along the trench. For Options A through I, cumulatively, estimate approximately 10,000 CY of "excess" material. The Contractor will need to use their best judgment in determining how to allocate this to the separate Options. See NEW tab "Pricing Info - Spoils_Amd7" in Attachment B09_Amd7 - B08_Attach4 - DetailedContractPriceSchedule.xlxs.

(4) Reuse of Clean Excess Soil.

There are a couple of areas where excavated soil will be used as fill in the immediate area. One area is the lagoons, where a "quarry" and mixing area are delineated in the plans. This soil will be used for the lagoon berms. The other area is the Cow Creek RO Plant. The site will be excavated down a couple of feet, and the excess soil will be reused for the berms surrounding the plant site. For the excess soil stockpiled at the mixing table, no specific areas have been identified where it will be reused.

(5) Interpretation of Lump-Sum Requirements.

On-site disposal locations, estimated quantities, and stockpile areas are provided as "information only" to assist Offerors, so no other responses are provided for this particular question/comment. Amendment 0007, Issued 1/12/2026.

1. Disposal Location Does the Government intend for all excess soil, rock spoils, trench spoils, unusable material, and demolition debris to be:

- (a) Removed from Death Valley National Park and disposed of off-site, or

- (b) Disposed of or placed at a designated on-site location within the Park?

If (b), please provide the exact location(s) and any requirements for use, restoration, or environmental restrictions.

2. Temporary Stockpile Areas Will the Government provide any temporary on-site stockpile or laydown areas for excavated material that will later be removed, processed, or reused?

If yes, please identify the approved areas.

3. Quantities If the Government intends that excess excavated material or spoils be exported, will the Government provide estimated quantities of materials anticipated to be:

- Unusable for backfill

- Surplus to trench or structure backfill requirements

- Contaminated or restricted for reuse

- Vegetation or brush requiring removal Even non-binding “for information only” quantities would allow bidders to price this work consistently.

4. Reuse of Clean Excess Soil Does the Government intend to allow or direct reuse of clean excess excavated soil elsewhere within the Park boundaries?

If so, please identify the allowable reuse areas and any testing, approval, or placement requirements.

5. Interpretation of Lump-Sum Requirements If the Government does not intend to provide disposal locations, quantities, or stockpile areas, please confirm that:

All costs associated with export, haul, and off-site disposal of excess soil, spoils, and debris are to be included in the Contractor’s lump-sum pricing for each CLIN.

RATIONALE - This clarification is necessary because:

*Spoil export and disposal represent a major cost element for this project due to the remote location of Death Valley National Park.

*The Contract Documents prohibit on-site disposal but do not designate any alternative location.

*Without an identified disposal site or estimated quantities, offerors cannot uniformly price trucking distances, disposal fees, environmental handling, or schedule impacts.

*FAR 52.236-2, 52.236-3, and 52.236-4 require the Government to disclose reasonably obtainable physical data and avoid ambiguity that leads to inconsistent bidding.

Clear direction on disposal requirements is required for complete, accurate, and uniform proposals.

The Contract Documents (Div. 31 – Earthwork) define “Rock Excavation” as material that cannot be loosened by three passes of a minimum-size ripping machine and require prior approval from the Contracting Officer before such material may be classified as Rock Excavation.

At the same time:

1. All excavation is otherwise designated as unclassified,

2. Section B – Price Schedule provides no separate CLIN, unit price, or allowance for rock excavation or mechanical rock removal,

3. Section 01 27 00 – Measurement and Payment states that lump sum items must include all necessary work, but

4. Div. 31 requires CO approval before material may be treated as rock, and

5. The Solicitation incorporates the following FAR clauses governing subsurface information and risk:

*52.236-2 – Differing Site Conditions *52.236-3 – Site Investigation and Conditions Affecting the Work *52.236-4 – Physical Data

The provided borings indicate that hard, cemented, and potentially unrippable materials may be encountered, but the Contract Documents do not indicate:

*The estimated quantity of materials anticipated to meet the Rock Excavation definition, *The locations or extents of such materials, or *The measurement or payment method should the CO approve material as Rock Excavation under the definition in Div. 31.

Without this information, bidders cannot uniformly quantify and price the potential work, which materially affects production rates, equipment requirements, and cost.

REQUEST FOR CLARIFICATION - To ensure consistent pricing among all offerors and reduce the potential for post-award disputes, please clarify the following:

(1) Quantities.

According to the geotechnical report, the only boring that shows auger refusal in the pipe zone is CC15. Other borings reveal cobbles, boulders, and claystone in the pipe zone; however, the soil is weak enough that an auger can penetrate. In the soil boring profiles, the claystone is often considered "extremely weak"; therefore, considering the auger refusal area as the worst-case scenario, and where rock excavation may be necessary. Boring CC15 is located along the access road to the Nevares Springs well near the Cow Creek RO Plant. For estimating purposes, 700 CY of rock excavation, this considers approximately 1,200 linear feet of trench x 3 feet of rock excavation depth in a 6-foot-wide trench. See NEW tab "Pricing Info - Spoils_Amd7" in Attachment B09_Amd7 - B08_Attach4 - DetailedContractPriceSchedule.xlxs.

(2) Pricing Mechanism.

Estimated quantities are provided as "information only" to assist Offerors, so no other responses are provided for this particular question/comment.

(3) Extra Work Determination.

A determination cannot/will not be made at this time and shall be addressed after contract award, should the matter arise.

(4) Lump-Sum Interpretation.

Quantities, allowances, and a pricing mechanism are provided as "information only" to assist Offerors, so no other responses are provided for this particular question/comment. Amendment 0007, Issued 1/12/2026.

Amendment 0010, Issued 1/30/2026.

1. Quantities Will the Government provide estimated quantities (even “for information only”) of material anticipated to meet the specification definition of Rock Excavation?

2. Pricing Mechanism If estimated quantities are not available, will the Government establish a uniform pricing mechanism for rock excavation, such as:

- A unit price bid item (CY or HR),

- A bid allowance,

- A geotechnical baseline report (GBR) or written interpretation of anticipated rock conditions, or

- A stated baseline production rate for determining when work qualifies as Rock Excavation?

3. Extra Work Determination Please confirm whether excavation meeting the Div. 31 definition of Rock Excavation (as verified and approved by the Contracting Officer) will be considered Extra Work and handled through an equitable adjustment under the contract.

If yes, please provide the Government’s intended:

*Measurement method (CY? HR?)

*Verification procedure *Required evidence of unrippable material

4. Lump-Sum Interpretation If the Government does not intend to provide quantities, allowances, or a pricing mechanism, please confirm that:

All excavation—regardless of hardness, cementation, or rippability—is intended to be included in the bidder’s lump-sum price.

RATIONALE - This information is required because:

- Rock excavation has a significant cost and schedule impact.

- FAR 52.236-2, 52.236-3, and 52.236-4 require the Government to disclose reasonably obtainable subsurface data and avoid ambiguity.

- Without a consistent basis for estimating rock, offerors may price this work differently, undermining competitive equality.

Clarification is necessary to allow all bidders to prepare complete, accurate, and uniform proposals.

- B09_Amd6 - QR No36 Attach1 - 06_05_2023_DEVA.pdf

- B09_Amd6 - QR No36 Attach2 - 06_06_2023_D_E_V_A_NP.pdf

- B09_Amd6 - QR No36 Attach3 - 06_07_2023_DEVA-NP.pdf

- B09_Amd6 - QR No36 Attach4 - 06_08_2023_DEVA-NP

- B09_Amd6 - QR No36 Attach5 - DEVA CCTV Report 11.03.22.pdf

Issued 1/12/2026.

Issued 1/16/2026.

40 Div01 - Section 01 57 19.12 - subsection 3.1 noise management - The table listed under number 2 sets either unattainable or difficult to meet sound levels. Additionally, if nightwork is performed, the noise levels are not achievable. It is important for contractors to minimize nuisance sound, similar to management of fugitive dust and housekeeping. Likewise, nuisance sound is not necessarily the sound at the point of generation, but that which leaves the site and impacts the natural soundscape for fauna, visitors, and operations not directly affected by the construction work. Nightwork, if authorized, must be scheduled such that nuisance sound does not violate quiet hours in campgrounds and housing areas, generally 19:00-07:00, and other similar areas (e.g., backcountry camping areas and locations with active ranger programs). Crucial habitat areas may also have more stringent requirements for nuisance sound. Amendment 0008, Issued 1/16/2026.

41 Please provide the environmental documentation (NEPA) for this project. Documentation is available to the public using this web address. https://parkplanning.nps.gov/documentsList.cfm?projectID=104695 Amendment 0008, Issued 1/16/2026.

The "Pricing Info - Piping" tab within the Attachment 4 - Detailed Contract Pricing Schedule.xlsx document is no longer required from Offerors with their Proposal Submission. Only the "Section B" and "CLIN Breakout" tabs within the Attachment 4 - Detailed Contract Pricing Schedule.xlsx document are required, per issuance of Amendment 0010.

Offerors shall propose lump sum prices per Section B - Contract Price Schedule, based on the quantities derived from the RFP Drawings on their own accord. Amendment 0007, Issued 1/12/2026.

Amendment 0010, Issued 1/30/2026.

46 Do the bid item extensions quantities and extended totals for bid Items 6,7,13 and 14 need to add up to and equal the total of the Attachment 4 bid item L.S. Price amount? For example, Bid item 6 describes 52 EA appurtenances. Please describe in detail fully what these appurtenances are. No, they do not need to add up. The intent of the additional "extension" quantities and information provided within the respective tabs are requested to support the Government's analysis of the actual proposed price amount. Actual proposed pricing will be as Lump Sum on the Section B - Contract Price Schedule tab. Reference to Appurtenances and quantities stated in the Pricing Info - Piping_Amd7 tab have been removed in their entirety. *The 52 appurtenances previously noted within CLIN 6's Additional Pricing Information tab are described in Specification Section 01 27 00, 3.1.F.2. Amendment 0007, Issued 1/12/2026.

The "Pricing Info - Piping" tab within the Attachment 4 - Detailed Contract Pricing Schedule.xlsx document is no longer required from Offerors with their Proposal Submission. Only the "Section B" and "CLIN Breakout" tabs within the Attachment 4 - Detailed Contract Pricing Schedule.xlsx document are required, per issuance of Amendment 0010.

Offerors shall propose lump sum prices per Section B - Contract Price Schedule, based on the quantities derived from the RFP Drawings on their own accord. Amendment 0006, Issued 12/10/2025.

Amendment 0010, Issued 1/30/2026.

51 First page of section 01 31 00 Project management and coordination is missing from the RFP specifications B08_Attach1a_-_Div01_Specifications_DEVA_318717_Jan2025x Refer to Amendment 0007 Attachment: B09_Amd7 - QR37 Attach - Pg1 Div01 Spec013100 Project Mgmt.pdf Amendment 0007, Issued 1/12/2026.

52 Per drawing 021-A101 (Architectural Floor Plan) for Cow Creek Lift Station, keynote 8 states: “Process equipment; see process TYP.”

The Cow Creek and Furnace Creek buildings included process diagrams and isometrics; however, these do not appear to have been provided for the Cow Creek Lift Station.

Please provide any additional process plans or isometric drawings for the Cow Creek Lift Station to clarify the scope of process equipment. The "process equipment" is only the lift station. Lift station section and plans are on Sheets 02-C7.5 and 02-C7.6. Amendment 0008, Issued 1/16/2026.

The barbed wire in the fence detail is removed. **Refer to the following Amendment 0010 attachments:

- B09_Amd10 - QR55 Attach_Drawing 00-C8.27_Jan2026.pdf

- B09_Amd10 - QR55 Attach_Drawing 01-C4.38_Jan2026.pdf

- B09_Amd10 - QR55 Attach_Drawing 01-C4.39_Jan2026.pdf

- B09_Amd10 - QR55 Attach_Drawing 01-C4.40_Jan2026.pdf

- B09_Amd10 - QR55 Attach_Drawing 01-C4.42_Jan2026.pdf Amendment 0008, Issued 1/16/2026.

Amendment 0010, Issued 1/30/2026.

56 Cow Creek Water - Old Ghost Road to RO - On sheet 02-C2.14, STA CW238+93.18 says to transition from 8-in DR17 to 8-in DR11; when you get to sheet 02-C2.19 it says 8-in DR17 but doesn't show what STA number to transition back to 8-in DR17. Please clarify what STA to transition back to 8-in DR17 or clarify if this is a typographical error. Transition to DR 17 is at STA CW 257+69.61 at the 8" gate valve. Changes back down to DR 11 at PRV at CW 265+25.54.

**Refer to the following Amendment 0008 Attachments:

- B09_Amd8 - QR56 Attach_Drawing 02-C2.18_Dec2025.pdf

- B09_Amd8 - QR56 Attach_Drawing 02-C2.20_Dec2025.pdf Amendment 0006, Issued 12/10/2025.

Amendment 0008, Issued 1/16/2026.

57 Referenced Specification requires the Contractor to provide both an Archeological Monitor and a Tribal Monitor to observe all ground-disturbing site work. Our past experience is that having the Contractor provide these positions results in a significant cost, which could be drastically reduced if the NPS were to utilize its own personnel to fulfill these roles. Please consider the NPS providing both the Archeological Monitor and the Tribal Monitor to reduce the cost to the Government. *Specification 01 35 13.22 No change to requirement. The construction contractor shall provide monitors. Amendment 0008, Issued 1/16/2026.

Issued 1/16/2026.

Issued 1/16/2026.

Issued 1/30/2026.

70 It seems that the linear footages shown in the price schedule include service piping, electrical piping and any other miscellaneous piping. Please confirm that this is the case. The "Pricing Info - Piping" tab within the Attachment 4 - Detailed Contract Pricing Schedule.xlsx document is no longer required from Offerors with their Proposal Submission. Only the "Section B" and "CLIN Breakout" tabs within the Attachment 4 - Detailed Contract Pricing Schedule.xlsx document are required, per issuance of Amendment 0010.