Sol_140P2024R0077_Amd_0008.pdf

(x)

140P2024R0077 x x copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted ; or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT TO BE

RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR

OFFER. If by virtue of this amendment you desire to change an offer already submitted , such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

x

PDS

Denver CO 80225-0287 P.O. Box 25287 12795 W. Alameda Pkwy NPS, DSC Contracting Services Div

08/16/20240008

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

12. ACCOUNTING AND APPROPRIATION DATA (If required) is not extended.is extended, Items 8 and 15, and returning

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended , by one of the following methods: (a) By completing

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

FACILITY CODE CODE

10B. DATED (SEE ITEM 13)

10A. MODIFICATION OF CONTRACT/ORDER NO.

9B. DATED (SEE ITEM 11)

9A. AMENDMENT OF SOLICITATION NO.

CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code)

7. ADMINISTERED BY (If other than Item 6)CODE 6. ISSUED BY

PAGE OF PAGES

4. REQUISITION/PURCHASE REQ. NO.3. EFFECTIVE DATE2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO. (If applicable)

1. CONTRACT ID CODE

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

07/11/2024

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority) appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

E. IMPORTANT: Contractor is not is required to sign this document and return __________________ copies to the issuing office.

ORDER NO. IN ITEM 10A.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

The purpose of amendment 8 is to:

Provide official government responses to questions received. Refer to the continuation sheet of the SF 30.

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)15A. NAME AND TITLE OF SIGNER (Type or print)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 15B. CONTRACTOR/OFFEROR 16C. DATE SIGNED

(Signature of person authorized to sign) (Signature of Contracting Officer)

Dayna Omiya

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

Previous edition unusable

Except as provided herein, all terms and conditions of the document referenced in Item 9 A or 10A, as heretofore changed, remains unchanged and in full force and effect .

Questions and Answers:

Q1. Specs require contractor to ¿Clean vehicles and construction equipment prior to entry and re-entry into the Park to minimize the potential for introduction and/or proliferation of invasive non-native weeds through project actions.¿

A1. Contractors can use a stiff broom to clean visible debris from vehicles. This is not required for vehicles that stay on hard surfaces, this is for equipment parking or being used in non-hardscapes. Contractors to be particularly diligent about inspecting/cleaning undercarriages.

Q2. Can an exception be made for re-entry of dump trucks transporting aggregate to and from approved weed free pits, or will each dump truck require re-inspection for every load imported from these pits? Will park have adequate staff available for such inspection during import?

A2. Contractors are required to clean empty beds of all debris before filling and brush clean all vehicles before entering the park. Park Staff will be available to inspect when Contractors have fill incoming.

Contractors can stockpile covered fill on site for short periods of time to limit fill loads in and out.

Q3. Specs and prior question responses state that contractor should assume excavated material will not be suitable for ¿engineered fill.¿ Should contractor assume then that trench excavation for water and sewer installation will be 100% import and export for trench backfill (both initial and final). Spec states that ¿existing material may be reused,¿ but based on previous responses, native material may not be suitable?

A3. Per prior question response and specification section 31 20 00 revised per amendment, contractor should assume that trench excavation for water and sewer installation will be 100% import and export for trench backfill. Backfill for the trench in engineered fill. The only locations the specs state material may ¿be reused¿ is related to topsoil (part 2.4.N) and Ground Surface Preparation related to existing compacted subgrade (part 3.5.B.) if the subgrade meets specified compaction and Graded/Compacted Soil Areas (part 3.5.C).

Q4. In areas of campsite restoration where additional fill is required for compacted/graded native areas, should this be assumed to be import material? Is there an additional spec for this native campsite fill material?

A4. It will very likely have to be imported. Fill sources available for topsoil require additional scrutiny.

Attaching the most recent park inspections, we have three sources cleared for soil sourcing. 2024 Quarry Survey Summary.docx.

Q5. Since a Geotech report is not provided, does the park have any historical data or information on water tables/expectation that water will be encountered during excavation and at what depth? Spec for Controlled Low Strength Material states it should be used for excavations extending below groundwater table, but there is no information on the extent that groundwater will be encountered.

A5. The park does not have any historical data or information on water tables/expectations that water will be encountered during excavation. Excavation near wetlands should expect higher water table than away from wetlands.

Q6. The tree protection specs are ambiguous¿it states throughout the specs that equipment may not be used in tree protection zones, in other sections it states that such work may be performed if approved by CO in accordance with developed and approved tree protection plan. The spec goes on to state that ¿When trenching is approved within the Tree and Vegetation Protection Zones by the Contracting Officer, the Work shall be dug by hand, pneumatic air excavation, water excavation, or be done by directional boring in a matter to minimize root damage. Contractor shall receive approval of CO prior to use of pneumatic air excavation or use of water excavation.¿ Could the park clarify if it intends for the entire installation of the sewer and water lines to be performed using hand tools, pneumatic air excavation, or water excavation? Or if after exploratory excavation using these methods and development of a tree protection plan, the park will allow traditional excavation methods (with excavators)?

A6. Tree Protection Zones will not approve of excavators. The intent of the language is to provide options (hand tools, pneumatic air excavation, or water excavation) in those zones.

Q7. Would the park consider installation of E-One or Keen grinder pump lift station and force mains in lieu of the proposed gravity sewer. This would significantly reduce impact to trees and surfaces throughout the park and lower costs.

A7. The Park prefers the gravity option but would consider reviewing the option of forced main to minimize initial impacts and cost.