Questions_and_Answers_18-38__W91242-18-R-0002.pdf

Questions and Answers (18-38) Date: 15 February 2018

Solicitation Number W91242-18-R-0002 C-17 Type III Hydrant Refueling System Ramp Expansion

Question 18: Paragraph 1.6.3 of Specification Section 01 33 29 requires that Pre-final Performance Data be collected from the first 60 days of facility operations after BOD, which will then be submitted with the Final Sustainability Notebook. Paragraph 1.5.1.1.c of the same specification section states that the Final Sustainability Notebook must be submitted within 60 days of the BOD.

Answer: 1.5.1.1.d of the same specification identifies the requirement for Amended Final Sustainability Notebook that allows for the incorporation of the performance data.

Question 19: Please provide a profile detail for the new water utilities.

Answer: Bury depth for buried water lines is provided in specification section 33 11 00 Section 3.2.1.3 as 3 feet minimum. Utility pipe installation to follow detail "Utility Trench" on C-510.

Question 20: Where is the frost line?

Answer: Frost depth is 12" as indicated on Drawing S-001, Section 4 "Geotechnical Information", note D- 3.

Question 21: Paragraph 3.2.6 of Spec Section 33 11 00 states that disinfection of non-potable water lines is not required. Please indicate whether or not the 8" PVC Water Line on Sheet CU101 supplies potable or non-potable lines. Answer: The 8" PVC line shown on sheet CU101 supplies potable water.

Question 22: Paragraph 2.2.5.1, of Spec Section 33 52 43.13 states that welding branch fittings shall be insert type suitable for radiographic inspections. Will non-insert types be acceptable for above ground use in containment areas?

Answer: No, provide fittings as indicated in the specifications (33 52 43.13).

Question 23: Paragraph 1.3.1 of Specification Section 09 90 00 indicates that the painting contractor who paints the building must be certified to SSPC QP 1. Is this correct?

Answer: Correct

Question 24: Paragraph 1.3.1 of Specification Section 09 90 00 indicates that the painting contractor who paints the building must perform Batch Quality Conformance Testing. Is this correct?

Answer: Correct

Question 25: Please confirm that Automated Monitoring Data must be made available through internet access as indicated in paragraph 3.5.2 of Specification Section 09 97 13.17.

Answer: Yes

Question 26: Paragraph 1.3 of Specification Section 33 52 43.28 states that Filter Separator Testing must be performed in the presence of the Technical Assistance Team from Wright-Patterson AFB, OH.

Is this accurate?

Answer: Yes

Question 27: Paragraph 3.2 of Specification Section 33 52 90.00 20 states that all weld passes shall be visually inspected by a third party. Additionally, it states that liquid penetrant testing shall be performed on all root passes. Will 100% radiographic examination satisfy the requirements stated above in lieu of testing each root pass? Will this also satisfy the requirement to perform visual inspection on each welding pass?

Answer: No, examine the welds at all intervals indicated in the (Specification Section 33 52 90.00 20).

Radiographic examination is not able to provide indications for certain defects that some of the other required NDE methods can (and vice-versa).

Question 28: Will the Government find it acceptable to permit a certified employee of the contractor to perform the liquid penetrant examination of root passes and visual inspections of weld passes?

Answer: No, Per Paragraph 3.2 of Specification Section 33 52 90.00 20, it states that "The services of a qualified commercial inspection or testing laboratory or technical consultant meeting the requirements of paragraph 'Inspection and NDE Personnel,' approved by the Contracting Officer, shall be employed by the Contractor." Per paragraph 1.6.5 of Specification Section 33 52 90.00 20, the agency, laboratory, consultant or QA organization selected and approved by the contracting officer shall meet the requirements of ASTM E329 (Standard Specification for Agencies Engaged in Construction Inspection, Testing, or Special Inspection). Both sections require Inspection and NDE personnel to be a third party employed by the contractor.

Question 29: Paragraph 1.9.3 of Specification Section 33 56 13.13 states that the calculations for the steel tank and floating pan design must be prepared by a State Registered Professional Engineer.

Does this require that the design calculations be prepared by an engineer licensed in the State of North Carolina, or any state?

Answer: Licensed Profession Engineer is not required to have a North Carolina seal.

Question 30: Paragraph 3.6.4.3 of Specification Section 33 56 13.13 states that water for hydrostatic testing shall be provided by the Government. Please provide the location of the source of this water.

Answer: The nearest fire hydrant can be located at the intersection of the fuel farm access road and Hercules BLVD. Refer to Drawing V-100, near the bottom half of grid D5.

Question 31: Paragraph 3.6.4.3 of Specification Section 33 56 13.13 states that the Government furnished water for hydrostatic testing flows at MAX a rate of 100gpm. Is this the average rate tested at the source?

Answer: Hydrant 14 is located at the corner of the fuel farm access road and Hercules Blvd. The test data for this location is: Flow Rate: 954 GPM, Static Press: 80 PSI, Residual Press: 50 PSI. The next adjacent hydrant on the fuel farm access road is hydrant 15 which is across the street from the existing fuel tank. Both hydrants are fed from an 8" line. Hydrant 15 test data is as follows: Flow Rate: 920 GPM, Static Press: 70 PSI, Residual Press: 50 PSI.

Question 32: Paragraph 3.6.4.3 of Specification Section 33 56 13.13 states that no water from the hydrostatic testing shall be released into the sanitary or storm system without the expressed consent of the Contracting Officer. Should the contractor assume that discharge of the test medium into the storm sewer would be acceptable given that test results from the medium meets all environmental requirements? If not, provide clarification if the contractor should assume that water will be discharged elsewhere, or if the medium must be disposed of off-site at the contractor's expense.

Answer: Discharge of test water to the storm sewer will be allowed if contractor tests water and provides clean lab results to the Contracting Officer for approval to discharge. If the water is contaminated it shall be disposed of by the contractor off-site at the contractor's expense. See Section 33 56 13, paragraph 3.6.4.3. See comments in red in column C See spec section 33 56 13. Paragraph 3.6.4.3.

Question 33: Has the Government tested or identified the presence of lead in the existing mechanical coating system?

Answer: No

Question 34: Has the Government tested or identified the presence of lead in the existing airfield’s pavement markings?

Answer: No

Question 35: Section 01.35.26, 1.14.2: Permit approval from NFPA Certified Marine Chemist for “Hot Work” within or around flammable materials. Is the Marine Chemist part of the Fire Division’s approval process or does the customer envision APTIM providing a Marine Chemist’s review for all Hot Work Permits then providing to the Fire Division for final approval and issuance?

Answer: Per specification 01.35.26 contractor shall provide the Marine Chemist. Base Fire Department will provide final issuance of the hot work permit. Please see paragraph 1.14.1 and 1.14.2 of 01 35 26.

Paragraph 1.14.2 states to "Obtain permit approval from a NFPA Cert. Marine Chemist for Hot Work".

This indicates that the contractor must obtain this permit as the specifications are written for the contractor as to what he/she is to provide and is responsible for all elements of the plans and specs unless stated "Not in contract" or provided by owner.

Question 36: Section 01.35.26, 1.16.4: Does the prohibition on relying on “local” resources mean base personnel and assets, or does it include a prohibition on public fire service as well, even if stationed on the base (Stn 17) or Charlotte AP (Stn 41)?

Answer: Local assets include base personnel and local Fire Stations

Question 37: 7. 01.35.26, 1.17.2: How will the Government provide the pre-entry check prior to all confined space entries and who will APTIM contact to coordinate this prior to each entry, and re-entry during each work day involving confined spaces?

Answer: Contractor shall coordinate all confined space entry with the base Fire Department.

Question 38: We request that the 145th Airlift Wing NC ANG show the limits of the temporary airfield security fencing that will be required of the contractor to install.

Answer: Contractor shall install temporary airfield security fencing at all locations the permanent airfield security fencing is compromised for construction ensuring a continuous airfield security fence is maintained at all times. CD-102 shows the removal of the existing perimeter airfield fence and is noted to install a temporary fence to maintain base security during this portion of the work.

Question 39: Is it the Contractor’s responsibility or the 145th Airlift Wing Charlotte, NC ANG’s to provide airfield security guard and a climate-conditioned guard shack at the construction entrance?

Answer: No