B08_Attach_9_PGLS_QA_and_Clarifications_2-17-22_0002.docx

Punta Gorda Light Station Rehabilitation Solicitation No. 140L1222R0002 Clarifications, Offeror Questions and Government Answers 2/17/22

Clarifications Clarification 1: Access Route. ATVs, UTVs, and other motorized equipment (such as pickup trucks and tracked equipment) can access the lighthouse site from Mattole Campground via the Lost Coast Trail beach route which is about 3 miles. The Contractor access plan should specify the type of motorized equipment that will use the beach route. The Contractor should also specify the number of daily trips by motorized vehicles that will use the beach route. The preference will be for utilizing only the size and type of equipment necessary to perform the required work while minimizing the impact on the environment and animal species of concern. The preference will also be for minimizing the number of trips to and from the lighthouse site.

Clarification 2: Offsite Restoration. The Contractor is not required to perform restoration of the cast iron lantern section and its components on site. See Project Specifications, Section 024296 – Historic Removal and Dismantling.

Clarification 3: Paint Removal. There is not an unconditional requirement that the Contractor remove all paint at the lighthouse. Most of the metal, concrete, and wood surfaces at the lighthouse have lead-containing paint and a small number of surfaces have lead-based paint (LBP). Paint removal is not required solely for the purpose of eliminating lead-containing paint or LBP at the site. However, the Contractor shall follow the manufacturer’s recommended surface preparation instructions for the coating system specified. In addition, the Contractor is required to provide mockups of each coating system to set quality standards and execution. Following these requirements will determine the amount of paint to be removed. See Project Specifications, Section 099600 – High Performance Coatings.

Clarification 4: Stairs. Existing cast iron stairs are to be removed and replaced with new cast iron stairs to match existing. See Final Construction Drawings S-111 to S-113, Repair Key Notes M1 to M7.

Clarification 5: Railing and Railing Posts. Existing cast iron railing and railing posts are to be removed and replaced with new cast iron railing and railing posts to match existing. See Final Construction Drawings S-111 to S-113, Repair Key Notes M1 to M7.

Clarification 6: Steel Post. Existing metal post to be removed and replaced with new steel post to match existing. For post materials, see Project Specifications, Section 055010 – Metal Fabrications 2.1.C. or 2.1.D. Both are acceptable. Also see Final Construction Drawings S-111 to S-113, Repair Key Notes M1 to M7.

Clarification 7: Potable Water and Non-Potable Water. There is no potable water or non-potable water at the Mattole Campground or at the Punta Gorda Light Station. Contractor will need to provide their own water.

Clarification 8: Storage Container. The Contractor may place one storage container at Mattole Campground for the duration of the project. The storage container may not remain at the Mattole Campground between work “seasons” or during extended periods of Contractor inactivity.

Clarification 9: Anchor Bolts. Contractor is not required to remove or replace existing anchor bolts that attach the cast iron lantern section to the concrete base section. Post-installed concrete anchors shall supplement the corroded anchor bolts.

Clarification 10: Interconnecting Bolts (and Nuts). Contractor shall replace all corroded interconnecting bolts (and nuts) located in the cast iron lantern section with either matching cast iron or matching stainless steel bolts (and nuts). New bolts (and nuts) shall match existing. Note that most are square head, not hexagon head. Use of stainless-steel bolts (and nuts) will require use of either nylon or neoprene washers to separate dissimilar metals.

Clarification 11: Regular Work Hours. Regular work hours will be 8 am to 6 pm (PST), Monday through Friday. Contractor must request approval to work outside of those hours, Saturday, Sunday, and holidays.

Clarification 12: Fencing. Contractor may modify the fenced area shown on the plans to reflect their actual needs for this project. Since this solicitation does not include any work at the oil house, the Contractor my propose a smaller fenced area necessary to accomplish the work.

Clarification 13: Existing Concrete Pad. Contractor may utilize the existing concrete pad that is southwest of the lighthouse for a helicopter landing pad. Contractor is required to determine the suitability of the concrete pad for such use.

Question and Answer Offeror Question 1: Per the discussion at the pre-bid meeting, is all concrete to be stripped bare and then recoated?

Government Answer 1: There is not an unconditional requirement that the Contractor remove all paint at the lighthouse. Most of the metal, concrete, and wood surfaces at the lighthouse have lead-containing paint and a small number of surfaces have lead-based paint (LBP). Paint removal is not required solely for the purpose of eliminating lead-containing paint or LBP at the site. However, the Contractor shall follow the manufacturer’s recommended surface preparation instructions for the coating system specified. In addition, the Contractor is required to provide mockups of each coating system to set quality standards and execution. Following these requirements will determine the amount of paint to be removed. See Project Specifications, Section 099600 – High Performance Coatings.

Offeror Question 2: If so, a preferred method would utilize sponge jet blasting equipment for the coatings removals. Would this be permitted? See attached Sponge Jet historic restoration sheet.

Government Answer 2: This method is acceptable, however, refer to the previous clarification regarding the required extent of paint removal.

Offeror Question 3: What type of material are the “post”, stairway, and railings to be? Cast Iron or Steel? If steel, what type of steel and what type of coating will be required?

Government Answer 3: Stairs - Existing cast iron stairs are to be removed and replaced with new cast iron stair to match existing. Railing and Railing Posts – Existing cast iron railing and railing posts are to be removed and replaced with new cast iron railing and railing posts to match existing. Steel Post. Existing metal post to be removed and replaced with new steel post to match existing. For post materials, see Project Specifications, Section 055010 – Metal Fabrications 2.1.C. or 2.1.D. Both are acceptable.

Offeror Question 4: With the oil house restoration not being included in the current scope of work, is the temporary high visibility fence to be located where indicated in the drawings, or in a revised location around the lighthouse building?

Government Answer 4: Contractor may modify the fenced area shown on the plans for reflect their actual needs for this project. Since this solicitation does not include any work at the oil house, the Contractor my propose a smaller fenced area necessary to accomplish the work and prevent the northern elephant seals, hikers, and others from entering the work area.

Offeror Question 5: What is the extent of the Temporary fencing layout as we are not working on the light house.

a) can we propose one on our technical proposal.

Government Answer 5: Contractor may modify the fenced area shown on the plans to reflect their actual needs for this project. Since this solicitation does not include any work at the oil house, the Contractor my propose a smaller fenced area necessary to accomplish the work and prevent the northern elephant seals from entering the work area.

Offeror Question 6: There are a lot of details and submittals in the Project Specifications since we are not working on the oil house how much of the submittals are required.

Government Answer 6: Only submittals related to work on the Lighthouse are required. The only section in the Project Specifications that is exclusively related to work on the Oil House, and is not required, is Section 314000 Shoring and Underpinning. All other sections contain elements of work on both the Lighthouse and the Oil House.

Offeror Question 7: What if any, special inspections and testing will be required in the Lighthouse project.

Government Answer 7: Requirements for inspections, sampling/testing, shop drawings, samples, and mockups are mostly found on Sheet S005 of the Final Construction Drawings and in Division 05-Metals and Division 09-Finishes of the Project Specifications. Requirements may be stated in other areas of the Contract documents. The Contractor is responsible for satisfying all such requirements that relate to the lighthouse building that are specified in the Contract documents.

Offeror Question 8: Please clarify replacement material for the ladder, column. and rail.

Government Answer 8: Stairs - Existing cast iron stairs are to be removed and replaced with new cast iron stairs to match existing. Railing and Railing Posts – Existing cast iron railing and railing posts are to be removed and replaced with new cast iron railing and railing posts to match existing. Steel Post. Existing metal post to be removed and replaced with new steel post to match existing. For post materials, see Project Specifications, Section 055010 – Metal Fabrications 2.1.C. or 2.1.D. Both are acceptable.