B12_MISC_(Contractor_Questions_-_NPS_Response)_0002.docx
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- Attached to
- Nicodemus NHS - Tuckpoint Masonry & Painting
- Solicitation number
- 140P6026Q0003
About this file
This document is a Contractor Questions and National Park Service (NPS) Response for solicitation 140P6026Q0003, addressing tuckpointing and masonry/painting work at the Nicodemus National Historic Site (NHS). The NPS provides clarification on 21 contractor inquiries regarding project scope, materials, and site conditions. Key clarifications include: mortar and paint analyses are not required; window glazing testing revealed asbestos (chrysotile type, nonfriable, 15%) requiring NESHAP compliance except for 16 lights replaced in 2023; lead-based paint testing from a 2002 hazardous materials report found no lead on prepared surfaces; metal frames require cleaning to bare metal only if incompatible primers are present; and wood trim requires only light scraping of loose paint, avoiding removal of wood substrate. The project encompasses approximately 3,747 square feet of masonry cleaning and tuckpointing, with any work exceeding 375 square feet requiring modification agreements. Stone cleaning must begin with the least aggressive method (nylon bristle brush) and cannot exceed 100 PSI without COR approval. The chimney requires tuckpointing where mortar is loose and cracked. Water and electrical service are available on-site without metering or payment charges. Equipment rental is available through United Rentals in Hays, Kansas, and local accommodations include small motels in Hill City and Stockton, a hotel in Ellis, and camping at nearby Lake Webster.
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Contractor’s Questions – NPS Response NICO - Nicodemus NHS - Tuckpoint Masonry & Painting - 140P6026Q0003
1. Will a mortar analysis be required?
No, analysis required. Instructions for mixing on page 2 and 3 of scope of work (SOW).
2. Will a paint analysis be required?
No. Refer to SECTION 099113 EXTERIOR PAINTING Part 1 & 2 for acceptable products to use and ensure paint color match.
3. Has glazing on windows been tested for asbestos?
Yes. Positive. 15%. Chrysotile type. Nonfriable
4. Does all window glazing need to be treated as Category 1 ACM?
Around 16 lights with their glazing were replaced in 2023 by NPS staff on the west facing windows. This is a soft glazing and COR Tyler Blind can help identify if needed, he’s the one who put them in. All other glazing must follow NESHAP regulations for removing the identified asbestos type.
5. Are storm windows inside removable?
Yes, they’re removable. They’re screwed into their own form and disconnect from their frames.
6. Are wood trim areas expected to be painted at windows?
Yes, painting for exterior wood is for all exterior wood.
7. If wood is to be painted has existing been tested for lead?
From the hazardous materials report in 2002. Lead-Based Paint, none of the prepared surfaces tested were determined to contain lead-based paint.
8. has paint on metal windows been tested for lead?
From the hazardous materials report in 2002. Lead-Based Paint, none of the prepared surfaces tested were determined to contain lead-based paint.
9. Can pictures be supplied of a sample window in its entirety?
Refer to part 3.2 in specification section 099113 addressing preparation of surfaces. Part 3.2 E, removal of rust, loose mill scale, shop primer, as well as Part 3.2 C. cleaning substates of materials which impair the bond, which includes incompatible paints and encapsulants. If this is conducted and existing coating is not incompatible with new primer and paint system, then existing paint system can remain.
10. Are metal frames expected to be cleaned down to bare metal before repainting?
Bare metal frames are only needed if incompatible primers are present. Reprime substrate with compatible primers or apply tie coat as required to produce paint systems indicated
11. Expectations to protect the ground while using lifts?
Use mats or other materials to protect the grounds from lifts wheels, scaffolding wheels, or other equipment.
12. Any replacement of broken or missing stone or filling in stones with holes?
Yes, COR to deem where necessary.
13. How much paint to remove from wood trim during painting?
Only loose paint materials. A light scraping is all that is required. Any scraping that removes wood is too aggressive of scraping.
14. Is there any tuck-pointing or cleaning of foundation stone? (Basement access area) No, this area is not included in the estimated 3747 sq ft of masonry to be cleaned.
15. Housing in the area?
Small motels in Hill City, Stockton. Hotel in Ellis. And camping at Lake Webster nearby.
16. Rental equipment for lifts?
United Rentals in Hays KS.
17. Nearest hardware store.
Do It Best in Hill City, KS. 15-minute drive straight west on highway 20.
18. Polyurethane on perimeter to be used?
SECTION 040140.62 STONE REPOINTING 3111127 3.2.E. For masonry pointing. Pointing with Sealant: NA
19. Chimney to be tuck-pointed?
Yes, Chimney is to be tuck-pointed where mortar is loose and cracked.
20. Will there be pay amendments if more than 375 sq ft of mortar is tuck-pointed?
Any tuck-pointing over 375 sq ft set amount would need to be agreed upon through a modification.
21. Can a power washer be used for cleaning the stone?
Start with least aggressive method, nylon bristle brush. No application of over PSI 100 can be used without COR approval. If needed, can move up to power washer, if necessary.
22. Water or electrical access?
On site. 311127-Div-01 Clean-Tuckpoint_FPI Review 3.3.D.2 2-3. Water Service: Water from existing water system is available for use without metering and without payment of use charges. Provide connections and extensions of services as required for construction operations without any additional permit costs. Use resources wisely and minimize waste of water.
Electric Power Service: Electric power from existing system is available for use without metering and without payment of use charges. Provide connections and extensions of services as required for construction operations without any additional permit costs. Power may or may not meet your construction power tool requirements, provide generators if questionable. Use power in a resourceful manner and avoid excess power waste.
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