Att12c_CSF_Clarifications.pdf

GRCA 250176 - Construction of Support Facilities for Transcanyon Waterline Project, Grand Canyon National Park

Solicitation 140P2022R0079 Clarifications

Background: This project was previously solicited under number 140P2022R0004 as a Small Business Set Aside. It is now being resolicited as number 140P2022R0079 Full and Open. The following were questions and clarifications developed during the initial solicitation.

PROJECT SPECIFICATIONS Section 01 50 00

1. DELETE second sentence of paragraph 2.2.B and REPLACE with the following:

Location shall be across the parking lot from the existing Facilities Maintenance Division Headquarters building, approximate geo coordinates 36.03308, -112.1279.

2. In paragraph 2.2.B.1 DELETE “720 square feet” and REPLACE with “224 square feet”.

3. DELETE paragraph 2.2.B.3 and REPLACE with the following:

3. No restroom is required in the field office. Water and sewer service are not available at the trailer location.

4. In paragraph 2.2.D.1 ADD “at work site” after the word “women”.

5. ADD paragraph 2.2.D.2 as follows:

2. Provide toilet facility adjacent to Contracting Officer’s Field Office.

6. DELETE paragraph 2.2.E.

7. DELETE paragraph 2.3.D

8. DELETE paragraph 2.3.E.5 and REPLACE with the following:

5. Two desks with five drawers each and two chairs with casters; one drafting table (minimum 40 inches wide by 5 feet long) and one stool; drawing rack; two 2-drawer and one 4-drawer legal size locking filing cabinets with keys; 8 feet of 12-inch-deep shelving; coat rack;

two additional guest chairs; two desk lamps; one drafting table lamp; and a maximum/minimum thermometer.

9. In paragraph 3.2.E ADD “and for Contracting Officer’s Field Office” after the word “personnel”.

10. DELETE paragraph 3.3.B.1 and REPLACE with the following:

1. Provide heat, lights, and power.

11. DELETE the last sentence of paragraph 3.3.B.3.

PROJECT SPECIFICATIONS Section 02 41 00

1. DELETE paragraph 3.4.A.4.

PROJECT SPECIFICATIONS Section 14 24 00

MODIFY paragraph 1.2.B.1 by DELETING the phrase “within a 100 mile radius of the project” and REPLACING with the phrase “within a 200 mile radius of the project”.

PROJECT SPECIFICATIONS Section 31 10 00

DELETE paragraph 3.2.C.1

PROJECT SPECIFICATIONS Section 01 11 00

1. ADD paragraph 1.5.F as follows:

F. Resource Protection Measures: The Contractor shall comply with the requirements of the Finding of No Significant Impact for the Transcanyon Water Distribution Pipeline, a copy of which is included with the solicitation documents. Requirements include, but are not limited to the following:

1. Vegetation removal shall occur between August 15 and March 31. Requirements for selective removal of trees are detailed in Section 02 41 00.

2. Archaeological monitoring is required for all ground disturbing activities. Monitoring will be provided by the Government. Provide a minimum of 72-hour notice prior to ground disturbing activities’

3. Project staff shall avoid interaction with condors and contact park staff if condors visit the project site. Outdoor construction activity will cease until condors leave the site.

4. Project site shall be cleaned up at the end of each day the work is being conducted (e.g., trash disposed of/secured appropriately and scrap materials picked up) to minimize the likelihood of condors or other wildlife visiting the site.

5. Project staff shall not disturb any wildlife species (reptiles, migratory birds, raptors, or bats) found nesting, hibernating, estivating, or otherwise living in, or immediately nearby, worksites. The Contractor will notify the Contracting Officer if any wildlife species are observed at the worksite.

Contractor may continue work unless it is determined to cause disturbance to wildlife. Minor interruptions will not be considered as a delay.

6. Wildlife will not be fed or approached.

7. Trash and recycling receptacles will be wildlife proof certified and will be tightly covered to avoid wildlife access.

8. Grand Canyon’s Parkwide Spill Response Plan will be used by the Contractor.

9. For all trenches or excavations, provisions (generally in the form of ramps; with a slope less than 45o) must be made every 20-50’ to allow for the escape of animals that may fall in, or they must be covered.

10. Contractor shall comply with the Migratory Bird Treaty Act [16 USC 703]. Any active bird nest shall be left in place and undisturbed until the young hatch and depart.

PROJECT SPECIFICATIONS Section 01 35 05

2. ADD paragraph 2.1.B as follows:

B. The Contractor shall include compliance with the Grand Canyon Parkwide Spill Response Plan as a part of his Spill Prevention and Response Plan.

PROJECT SPECIFICATIONS Section 01 50 00

3. DELETE paragraph 2.3.C and REPLACE with the following:

C. DDC Control Internet Connection: Furnish, install and maintain internet connection (cellular hot spot) between the project’s DDC control system and the internet through a contractor furnished internet service provider. The Contractor is responsible for maintenance of this connection and costs associated with the internet service provider through the warranty period of this contract. Upon completion of the warranty period the service will be connected to the Government network and all future costs for the connection will no longer be the responsibility of the Contractor. Network cables shall be installed so that the connection can be connected to the Government network in the helibase IT room.

3. DELETE paragraph 2.3-D

This paragraph is deleted and is no longer a requirement

PROJECT SPECIFICATIONS Section 31 10 00 SITE CLEARING

Approximate size and number of trees to be cleared. Contractor shall field verify. Contractor to notify Contracting Officer of any discrepancies

Support Facilities for Trans Canyon Waterline Tree To be Removed

Location Drawing

DBH <13"

DBH 14" -

21"

DBH 22" -

33"

DBH 34" -

44" Notes

RV Camp 06 - X101 15 81 55 6 Remove stumps

Access Road 06 -X102 46 149 90 27 Remove Stumps

Helibase, sheet 06-X100; 312ea at average DBH 14”-33” to be field verified/identified prior to removal.

Leave stumps flush cut at six (6) inches or less above local grade of each tree

Trees and associated slash will be removed from the park, responsibility of the Contractor

Trees can’t be removed prior to 8/15 without a nesting survey

Reference: All other materials shall be disposed of as described in section 31 10 00 SITE CLEARING

CONSTRUCTION DRAWINGS

Sheet 10 06-X100

DELETE text shown for Key Note 9 and REPLACE with the following:

9. Existing concrete pavement & asphaltic concrete to be removed from the site, typical for all areas within the limits of grading shown on sheet 06-C102 unless otherwise noted.

Sheet 21 – 06-C401

MODIFY waterlines in the vicinity of new helibase building as shown on attached redline markup of sheet 21 – 06-C401.

ADD the following Note 3:

3. All water, reclaimed water, and sewer utilities shall have a minimum of 3 ft depth of cover unless otherwise shown.

Sheets 22 – 06-C402, 23 – 06-C403, 24 – 06-C-404, and 25 – 06-C405

ADD the following Note 3 to each sheet:

3. All water, reclaimed water, and sewer utilities shall have a minimum of 3 ft depth of cover unless otherwise shown.

Sheet 76 – 06-P101

ADD new work on sheet 76 – 06-P101 as follows:

a. Install 2” tee connection and ball valve on the vertical 2-1/2” CW downstream of BFP-1.

b. Route 2” PVC potable water line to the exterior of the building for pick up on sheet 21 - 06-C401. 2” water line is to exit building below grade. Route below footing and connect to exterior water line.

Questions from Previous Solicitation

1. QUESTION: Sheets E601 & E602 – The symbols shown for the main circuit breakers in SES-1, SWBD-1, RVMP-1 thru RVMP-20, and MB-1 indicate draw-out circuit breaker types. This construction is uncommon for this application. Please clarify whether these breakers are intended to be draw-out type or standard fixed-mounted molded case circuit breakers.

ANSWER: Standard fixed-mounted molded case circuit breakers are acceptable for the main breakers in SES-1, SWBD-1, RVMP-1 through RVMP-20, and MB-1. Draw-out type circuit breakers are not required. The main breakers in SES-1 and SWBD-1 shall be individually mounted.

2. QUESTION: Sheet E601 – The one-line diagram representation of switchboard SWBD-1 indicates individual breaker compartments/sections for each branch breaker. Please clarify if this switchboard is intended to be a compartmentalized type, or a standard UL891 deadfront switchboard per specification 26 24 13.

ANSWER: Group-mounted type feeder circuit breakers are acceptable in switchboard SWBD-1 in a standard UL891 deadfront configuration per Specification Section 26 24 13. Individual compartments for feeder circuit breakers are not required. Note that switchboard SWBD-1 will be mounted against a wall and will be accessible from the front only.

3. QUESTION: Will the Park provide housing for the Contractors?

ANSWER: The Contractor shall direct coordinate/communicate with concessions operators for possible rental of RV trailer slips. Contractors may use the planned location of the RV sites with self contained RV use as long as it facilitates a safe working environment for the contractor to complete the work.

4. Can the superintendent also serve as the safety specialist?

Response: It is assumed safety specialist refers to the Site Safety Health Officer (SSHO) described in 01 35 23 Paragraph 2.4. The specifications state that the SSHO is not a mutually exclusive position. The SSHO may have other duties if otherwise qualified in accordance with the specifications.

5. Am I reading the COVID 19 workforce safety correctly and that all personnel on the job will be required to be vaccinated or show proof of why not?

Response: Contractors are required to adhere to the Clauses in the Solicitation/Contract.

6. I have been reading through the COVID requirements, updated as of November 10, 2021, and I noticed that Contractors and subcontractors must be vaccinated. I want to make sure I am interpreting this correctly. Can you please clarify?

Response: See response to #5

7. Generally, in a hangar we install a special fire sprinkler system, either a dry pipe or single or double interlock pre-action system or a foam system when quantities of fuel are present. The specs do not address this. What kind of fire sprinkler coverage is needed in the Hanger area?

Response: A wet sprinkler system shall be installed throughout the hangar and office area as shown on the fire suppression plans.

8. The Specs ask for pipe that is rated at 175 psi. I do not see a guideline on the pipe schedule or location of manufacture. Would you like this to be domestic or non-domestic pipe? Should the pipe be schedule 40, or can we use schedule 10 on the larger pipe sizes?

Response: Specification 21 05 00 does not dictate the required schedule of pipe to be used as long as the pipe meets NFPA requirements.

Sourcing of materials must comply with the requirements of the solicitation, including buy American requirements. See provisions 52.225-9 Buy American - Construction Materials and 52.225-10 Notice of Buy American Requirement - Construction Materials in the solicitation.

9. The specs call for the fire sprinkler piping to be painted. Will this be done by the painting contractor? (3.2 B-2)

Response: Who performs the painting is the prime contractor’s option.

10. The specs call for a water motor gong, (2.3 D-2). Can we install a flow switch and an electric bell instead?

Response: The intent of the specification is to provide a flow switch activated electric alarm (horn and strobes). The flow switch is specified in Paragraph 2.3.D.1 and the electric alarm is specified in 2.3.D.2.a.

13. Specification section 01 50 00-2.3-D states “Contractor shall supply satellite-based phone services for the contractor camps and radio communication to all construction crews.” The jobsite has good cell phone coverage. Can cell phone communication be used in lieu of this requirement?

Response: This paragraph was deleted in Amendment 4 and is no longer a requirement.

Additional Information

Provide Sheet 06-C401 Civil Utility Plan

Provide Spill Response Plan