Camp Crook pre bid and QA.2.docx

Camp Crook ARRA Project – Pre-Bid Meeting 1/20/2010 General Discussion:

· Informed Contractors that Amendment 4 was posted in FBO yesterday which changed the solicitation to Total Hub-Zone set aside, which was based on a challenge by the Small business Administration.

· Coordination issues with constructing new office and a move in within thirty days allowing the contractor to demolish the existing building and put up the parking lot.

· Drainage is a big issue and an amendment will be issued. 90 ft culvert will be eliminated and existing diagonal culverts will be used.

· Asbestos – need to provide additional information to contractors. Did tell them that they would be responsible for all asbestos abatement.

· Substitutions – will not pre-approve. True equals will be accepted (provided all salient characteristics are met).

· Once amendment is issued, government will extend the bid time by a minimum of 10 days.

· Scheduling of work

Questions and Answers (questions are from pre-bid meeting as well as other questions submitted by email:

Architectural/General:

1. Are the residences going to be occupied during construction?

Answer: The contractor will be required to work on one residence at a time. The middle residence will be used to house people from the other residences as the work is completed. Following is the sequence of work to be accomplished for the residences, garages and the bunkhouse:

A. Bunkhouse to be completed first – bunkhouse occupants will stay in middle residence.

B. Remodel middle residence, build and remodel all garages as shown on the plans. Garages will be used as storage areas for the north and south residences when those are being worked on. Bunkhouse residents will move back into bunkhouse prior to beginning work on middle residence.

C. Remodel north residence. Occupants will move into middle residence and store some of their personal belongings in the garages.

D. Remodel south residence. North residence occupants will move out of middle residence and south residence occupants will move in.

E. Contractor will be required to provide all moving services for the occupants in and out of all buildings.

2. Is there designated storage, office trailer, and housing space for contractors?

Answer: There is space for an office trailer with hook-ups as shown on the plans. There is also a staging area for the contractors equipment. If there is additional space needed for staging, it will be provided near the spoils area. There is no housing space available for contractors on the site, however there are some hookup sites available in Camp Crook.

3. Lead surveys for lead paint, will they be held to guidelines, will there be testing for lead?

Answer: Lead surveys have not been completed on the existing buildings. Contractor will be required to test and follow all abatement and disposal procedures when removing the existing office.

4. Abatement of hazardous material falls on contractors or who?

Answer: Contractor is required for the proper abatement of hazardous materials.

5. What is the septic tank size that must be removed?

Answer: Existing septic tank size is unknown

6. Does every residence have a separate septic?

Answer: No, all of the buildings are currently connected to the City Sewer System.

7. Are there any LEED requirements for this project?

Answer: There are many LEED specified materials, products, systems required, however LEED documentation will not be required under this project.

8. What is the project time line – break ground, office building, completed, etc.?

Answer:

9. Does the current weather station for the National Weather Service need to be preserved?

Answer: The National Weather Service will be responsible for moving the weather station and extending their existing communication line to a new location approximately 30’ south and approximately 20’ west of the existing location prior to construction. The existing weather station is located in a fenced area approximately 40’ south of the new office. The fence and communication line is shown on sheet C1.1A. The communication line is shown as a telephone line running southwest from the existing office and ending in the fenced area. The contractor will be responsible for removing the fence as shown on Note 5 of D1.1A and for extending the sidewalk to the new weather station location and shall account for 50 ‘ of additional sidewalk than what is currently shown. The contractor will also be required to protect the existing and extended communication line during construction. Finally a 1-1/2” x 10’ long conduit will need to be installed under the new sidewalk by the contractor. Location of this conduit will be identified by the COR.

10. What are the existing and new water system pipes made of?

Answer: Existing waterlines are assumed to be a combination of galvanized and PVC. Contractor will be responsible for verifying. New water system piping materials are as shown on the drawings and specifications.

11. Are there raw and treated water lines provided to the office building?

Answer: Yes, drawings WS1.2 and WS1.4, currently show only (1) – 1-1/2” treated line. This shall be changed to (2) - 1” lines, one treated and one raw. Each line shall have a curb stop installed.

12. Are the exterior products (Hardiboard) a prefinished product or not?

Answer: All new exterior trim and siding shown on Residences, Garages and Bunkhouse shall be pre-primed material and prepped for paint finish. Coordinate color and location with Contracting Officer.

13. Is there a local dump area for demo?

Answer: Yes there is a dump in Camp Crook and in Buffalo, SD. Camp Crook has a limited and restricted dump site following are the requirements:

Authorized wastes:

Treated and untreated lumber Disposal in metal trench Rubble (concrete, rock, dirt) Disposal in rubble pile Metal Disposal in metal trench Loads must be sorted. Contractors are charged $25.00/load. A load would be defined as 4 pickup loads or one dump truck load.

Will not accept cardboard or plastics.

Contact Matt Debow @ 605-797-4428.

For Buffalo dump requirements see attached pdfs: Buffalo Dump 1 and 2

14. Are there building permits for this area?

Answer: Building permits are not required under this contract, however the contractor is still required to follow the latest International Code requirements and install in accordance with the plans and specifications

15. Do the foundations on the residences get over-excavated?

Answer: Yes, we need to follow recommendations in the Tetra-tech geotech report. The depth of over-excavation is dependent on the exact location, however as a general guideline excavation can begin 4’-0” from the existing building where applicable – see attached sketch SSK-1 for footing step guidelines.

16. Are aggregate materials or construction spoils going to be used to fill the old office hole?

Answer: Aggregate materials equal to what is called for under the building will be required.

17. Is this tax exempt, taxes, how do they find out, etc.?

Answer: Contractor will be responsible for complying with South Dakota tax laws and will be required to adhere to the South Dakota construction excise tax requirements.

18. Are the basement windows in the 4-plex being replaced?

Answer: No

19. Does each residence in the 4-plex get a sewage ejector sump and pump?

Answer: Yes, each residence will get a sewage ejector in each residence (4 total).

20. Is it a raw sewage pump and whole new system in the basements of the 4-plex?

Answer: Yes, they are for raw sewage and are entirely new systems. See Scope of work Note 5 for the 4-plex on sheet A9.1E

21. Will the 4-plex be empty while work is going on?

Answer: No, all units will be occupied and the contractor will need to coordinate this work with the building occupants and the District Ranger.

22. Is the fence around the residences going to be gone?

Answer: The contractor is required to remove all existing fences around the residences – See Note 5 on sheet D1.1A.

23. The key notes on the S. residence A2.1D – repeat #s (22, 23, 24, 25, 24, 25, 26). What is correct?

Answer: Sheet A2.1D, Delete keynote 24 which states: “Contractor to provide new concrete apron in front of garage”. Remove key note symbol 24 from garage apron on detail 19. Keynote 25 which states: “Contractor to provide new concrete stoop” shall be re-numbered to Keynote 27. Keynote symbol 25 outside door 101.1 on Detail 16, shall be changed to Keynote number 27.

24. Is there a crawl space in middle residence only?

Answer: Yes, the middle residence is the only one with a crawl space, the north and south residences have basements which will be modified as shown on the drawings.

25. Clarify heating and cooling requirements for middle residence.

Answer: Delete General Work note 7 on Sheet A2.1C and replace with: Existing Furnace will be reused in this residence. Contractor shall coordinate location and reuse of existing ductwork. Generally all ductwork will be located in the crawl space. Existing ductwork can be used to the extent possible. All ductwork will be insulated. Existing Water heater in this residence shall remain.

26. What about mechanical for north and south residences?

Answer: All references to 90% efficient furnaces shall be changed to 92-95% furnaces. Furnaces and cooling systems shall be sized to adequately heat and cool the residences including the new additions. The existing furnaces shall be salvaged, removed and returned to the government.

27. Will the additions on the North and South residences only be required to have a crawl space?

Answer: Yes as shown on the plans, the additions to these residences have crawl spaces.

28. Is wrapping of existing duct and water pipes in residences, especially the center residence required?

Answer: Yes, as stated in the plans insulating all new and existing ductwork is required.

29. New accessible cabinets and sinks in the middle residence?

Answer: Yes all existing cabinetry is to be salvaged, removed and returned to the government and new accessible cabinetry shall be installed in accordance with the plans.

30. Furnaces replaced and moved out of basements in the N and S residences?

Answer: Yes, as stated in the plans.

31. Crawl space access in the middle residence may be impeded by existing furnace.

Answer: New crawl space access will need to be installed in one of the bedroom closets depending on floor framing. Coordinate with Contracting Officer. The other crawl space access in the office area shall remain as shown.

32. Are basements in the north and south residences being filled in?

Answer: Yes, these basements are going to be partially filled in with 18” of gravel, as shown on the plans and will be turned into crawl spaces

33. Radon issues in the residences?

Answer: Yes, radon is present in the residences and mitigation is required in all residences. Existing radon mitigation system in north and south residences is to be reused and added on to as shown on the plans. The middle residence will get a new radon mitigation system as shown.

34. Is all plumbing in basement and crawlspaces to be redone under this contract?

Answer: General Residential Work Required at Each Residence, Note 14 shall include the following; “all existing plumbing (sewer and water) below the main floor shall be replaced with new”

35. There is a center structural support wall that is in the basement of the North Residence which is untreated. How do you want to resolve backfill around this?

Answer: Contractor shall protect any existing untreated walls or columns in the North & South residence basements with 24” high cement board, caulk and seal all edges.

36. Explain the treated and untreated water to the residence.

Answer: Treated and Raw water is provided to all the buildings including the residences as shown on the WS plans. Raw water (untreated) is used for the toilets and treated is used for everything else.

37. Who is responsible for soil and concrete testing?

Answer: A soils report has been provided in the Specifications, however all compaction testing, concrete testing and all other testing required in the specs is to be completed by the contractor.

38. New underlayment in Bunkhouse and what is the new flooring going to be?

Answer: See Bunkhouse Scope of Work Note 2 on Sheet A9.1E

39. Paint or new siding for the Bunkhouse?

Answer: See Bunkhouse Scope of Work Note 1 on Sheet A9.1E. Provide paint on entire bunkhouse exterior.

40. New ceiling tiles in the bunkhouse?

Answer: No, just repainted

41. Will the furniture be removed from the bunkhouse during construction and who is responsible for storing the bunkhouse items?

Answer: As stated in Item #1 above the contractor will be responsible for moving the furniture. The contractor can do one floor at a time or even partial floors to allow all furniture to be stored within the bunkhouse.

42. Counter, down Flow or horizontal flow for furnaces for residences?

Answer: As stated above, middle residence will reuse existing furnace. North and South residences will need to use downflow.

43. Woodstoves, washer, dryer, etc private or government property, and who will move?

Answer: Contractor

44. Do the replaced windows need trim painted or is it a finished material?

Answer: Replaced windows are vinyl any trim removed and replaced both interior and exterior will need to be painted

45. How many paint colors for the residences (Two?)?

Answer: We will only require a maximum of two different paint colors on the inside and two different paint colors on the outside. This is not for each residence, but for all three residences. Contractor shall submit full color range for review and approval.

46. Who is responsible for moving the existing furniture, files, printers, etc. from old office?

Answer: As stated in Item #1 above the contractor will be responsible for moving the furniture.

47. What hardware is wanted for each storefront door? The spec calls out pivots, hinges and continuous hinges for each door. Which one should be used?

Answer: Section 084113: Delete Paragraphs 2.6.D & 2.6.E in their entirety. Aluminum entrance doors are to have offset-pivot hinges.

48. Does the carport slab have a slope and which way does it drain?

Answer: Contractor shall slope new slab at the carport ¼” per foot to the south.

49. In specification Section 074213, Metal Wall Panels, Paragraph 2.5.B.4 calls for “Extruded exterior panel trim…” The details, such as 4,5,9,10,14,15,19 and 20 onA5.2A and elsewhere, indicate break-formed sheet metal trim, which is a typical type of trim. This creates a conflict where the specification does not match the drawings.

Answer: Section 074213: Delete Paragraph 2.5.B.4 in its entirety. Refer to paragraph 2.5.B.3 for break-formed sheet metal trim requirements.

Electrical:

E2.1A lighting-the other 3 way switches for circuits e, f, g, and h are missing. Can you verify the location or do they need to be changed to single poles.

Answer: E2.1A, Revise the 3-way e,f,g, and h light switches to single pole switches.

E9.3A- MDP shows a 100 amp breaker feeding panel M1, which is a 200 amp m.l.o. with a 200 amp feed. Please advise.

Answer: E9.3A In panel MDP, revise the 100A breaker for panel M1 to a 200A/2P Breaker.

E2.1B-What is the correct switching sequence for the hallway lighting.

Answer: Provide 3-way switch in described location. Eliminate switch at Bedroom door 105 & 112.

Is GRC (galvanized rigid conduit) required in the mechanical room?

Answer: Yes

On page E2.2A 2" EMT is called for in the communications/ data connection for the desks. It states in the notes that 2" EMT connected to a 4 square mud ring is required. 2" EMT will not fit in a 4 square box required to support a four square mud ring.

Answer: The four square mud ring mounts in the wall for a clean finished look. The conduit stubs in the wall behind the mud ring, they never connect

On the same page there is no 110/240 power circuit for the generator. A circuit for battery chargers, block heaters etc. may be required to maintain an active status on the generator. If so, which panel would the circuit be fed from?

Answer: Please see General Note #2 on sheet E1.1A. All circuits required shall come from the load center mounted inside the gen set enclosure, circuited to the M1-10,20. If the gen set enclosure does not allow for a load center, circuits shall be circuited from panel M1.

Will the electrical contractor be allowed to install metal clad “MC” cable in lieu of the conduit as specified?

Answer: No

Will the electrical contractor be allowed to install non-metallic cable in residential applications? (residences) Answer: Yes

E1.1A Site - Will the electrical contractor be allowed to install conduits under floor in lieu of over head for note #2?

Answer: No, the Forest Service IT group requested the conduit path to be accessible once it reaches the building envelope.

E2.1A -There is not a fixture type E2E on the fixture schedule. Please advise.

Answer: E2E luminaires shall be the same as E2 luminaire with separate 12 VDC socket for 53w emergency lamp. Connect socket to EM battery packs for emergency lighting.

In Specification 264313 for Transient Voltage Surge Suppression the manufacturer listed - MVC lowest surge current capacity is 60kA. Per the specifications: "surge current capacity of 10,000 amperes as per IEEE C62.41 (8 X 20 microsecond wave) per phase." This is not consistent with the manufacturer listed surge current ratings of their specified model number. Please verify the surge current rating per phase requirement.

Answer: 10,000 kA or greater per phase is acceptable. Note: Neutral to Ground connection is not allowed.

In the communication schedule there is mentioned a analog telephone system and then no more mention of the requirements. Can you elaborate?

Answer: As per the specification all cabling shall be CAT 6. The only Analog line in the building is the Fax machine.

In the residences there are no voice or data cabling specified, can you clarify?

Answer: Sheet E2.1B / E2.1D, Triangle outline indicates coax outlet location. Solid triangle indicates telephone outlet.

Civil/Survey:

Questions concerning the Construction Layout section of the Specifications.

1.) Division 1, Section 017300, 1.1,B

a. Spec. states “See Division 01 Section “Closeout Procedures” for submitting final property survey with Project Record Documents, recording of deviations accepted by Contracting Officer from Indicated lines and levels, and final cleaning.”

i. I do not find this Section in the Spec.’s. Where do I find the information for submitting the final property survey?

Answer :Section 017300, 1.1.B: Change paragraph to read: “Submit final property survey with Project Record Documents…”

2.) Division 1, Section017300, 3.3, A

a. Spec. states “Verification: Before Proceeding to lay out the Work, verify layout information shown on Drawings, in relation to the property survey and existing benchmarks. If discrepancies are discovered, notify Contracting Officer promptly.”

i. Plan Sheets “C1.1A, C1.2A and C9.1A” do not show any dimensions to locate the new building on the site, nor do they show any dimensions on the new parking lot, alignments for water lines, sewer lines, drain lines and etc.. Who will provide this information and what format will it be presented in?

Answer: Section 017300, 3.3.A: Add: Contracting Officer will provide digital files in AutoCAD format of the Civil & Water System plans.

3.) Division 1, Section017300, 3.3, B, 2

a. Spec. states “Establish dimensions within tolerances indicated. Do not scale Drawings to obtain required dimensions.”

i. Please advise me where I can find the tolerances to use for this project.

Answer: Section 017300 Delete paragraph 3.3.B.2

4.) Division 1, Section017300, 3.3, B, 4

a. Spec. states “Check the location, level and plumb, of every major element as the Work progresses.”

i. Please clarify “major element”. To me this could be checking anything from every concrete form, cinder block or wall panel, to only checking maybe the foundation and finished exterior building walls.

Answer: Section 017300 Change Paragraph 3.3.B.4 to read “Check the location of the building foundation and layout of floor plan grid lines.”

5.) Division 1, Section017300, 3.3, B, 5

a. Spec. states “Notify Contracting Officer when deviations from required lines and levels exceed allowable tolerances.”

i. Please advise me where I can find the tolerances to use for this project.

Answer: Section 017300 Change Paragraph 3.3.B.5 to read “Notify contracting office where deviations occur.”

6.) Division 1, Section017300, 3.4, B

a. Spec. states “Benchmarks: Establish and maintain a minimum of two permanent benchmarks on Project site, referenced to data established by survey control points. Comply with authorities having jurisdiction for type and size of benchmark.”

i. Who would be the “authority having jurisdiction” in this case and would there be any special monuments required in the setting of benchmarks? I would also like to point out that the only “Control Point Data” that I find for the project is listed on Plan Sheet WS1.2. The Vertical Datum for this control appears to be in conflict with the Vertical Datum of the Finish Grades as shown on Plan Sheets C1.1A and C1.2A.

Answer: Section 017300 Change Paragraph 3.4.B to read “Benchmarks: Establish and maintain a minimum of two permanent benchmarks on Project site, referenced to data established by survey control points. Benchmarks are for construction layout purposes, no special setting of monuments is required. Project engineer will provide a vertical datum conversion between civil and water system drawings prior to construction.”

7.) Division 1, Section017300, 3.4, C

a. Spec. states “Certified Survey: On completion of foundation walls, major site improvements, and other work requiring field-engineering services, prepare a certified survey showing dimensions, locations, angles and elevations of construction and site work.”

i. Does this indicate that there would be numerous “certified surveys” completed for the project or are you just looking at one “As-built Survey” on completion of the entire project?

Answer: Section 017300 Delete paragraph 3.4.C

8.) Division 1, Section017300, 3.4, D

a. Spec. states “Final Property Survey: Prepare a final property survey showing significant features (real property) for the Project. Include on the survey a certification, signed by land surveyor, that principal metes, bounds, lines, and levels of Project are accurately positioned as shown on the survey.”

i. Would this survey be equivalent to an “ALTA Survey” where you would require the Property Boundary to be surveyed along with all improvements and appurtenances shown on the survey including all utility lines and easements of record? If so, will there be a legal description of the property to be surveyed provided, and by whom? Has there been a prior Survey like this performed on the property? If so is there a copy of the Survey available?

Answer: Section 017300 Change Paragraph 3.4.D to read “Final Property Survey: Prepare a final ALTA survey showing significant features (real property) for the area within 30 feet of Office Building ‘A’ and the parking lot east of the building. Include on the survey a certification, signed by land surveyor, that principal metes, bounds, lines, and levels of Project are accurately positioned as shown on the survey.”

Plumbing/HVAC:

The schedule for the job is showing that we need to use the 58MVB furnace, the 24ANA condensing unit and the Infinity control but it also lists using a standard zone system. The furnace,a/c and control are all comunicating pieces of equipment and therefore we would also have to use the communicating zone system, which isn't a problem but the plan shows using a barometric relief damper in each of the systems. With the Infinity zone system it is recommended that we don't use the relief dampers.

Answer: Omit the pressure relief dampers shown on the drawings and utilize the Infinity system’s static pressure sensor to control the blower motor.

The Infinity system will monitor its static pressure through the blower motor and by having the relief dampers in the duct it will continue to speed the blower motor up as the relief dampers open.

Answer: See comment above.

I am sending you this email to see if we could get the relief dampers removed from the plan.

Answer: Yes, see comment above.

Structural:

Sheet S1.1A calls for an HSS 10x10 to be used as the column support at the low side of this structure (frame line 5) on 24’-0” centers. It also calls for an HSS 8x8 support column at the center point between the HSS 10x10’s. Tube sections fail design under combined loads. We propose using a built up I section in place of these structural shapes. If a built up section is not acceptable then we can use a wide flange beam. This scenario is also the case at the high side of the structure (frame line 3 & 1) Answer: The statement that the HSS sections are failing under combined loads is somewhat surprising given high capacity of HSS shapes and the relatively small tributary area supported by the columns along line 5 due to the intermediate columns at line 4, and that roof lateral loads are to be resolved with sheathed walls. However, built up sections or wide flange beams are acceptable structurally, but shall be submitted for review and approval by the Contracting Officer if the resulting section exceeds the column dimensions indicated on plan. Frame line 5 is the high side of the structure; lines 1 and 3 are on the low side.

Other items:

E1.1A –

· The work on this sheet shall all be covered under the Office Building ‘A’ in the Schedule of Items.

· The new electrical conduit shown from the new office to the existing garage shall be changed from (3) 1” C.O. to (1) 3” C.O. with pull string.

A4.1A - On diagram 6, reverse the locations of the FS and BLM signs, see notes 10 and 11.

D2.1C

- Garage Demo note #7 – Existing siding is Masonite, not steel siding A2.1C

· Drawings for the addition to the garage should be shown as building to the North side not the South side of the existing garage. Mirror plan – detail 16 to reflect addition to the garage will be on the North side. Demolition plan on sheet D2.1C shall also be mirrored to reflect this change.

· Note 36 – Splashguards will need to be installed to the north and south instead of the west.

· 106 Bathroom on Sheet A2.1C, keynote 11 states new 4" tile @ floor. Should this be the 6" tile listed in the specifications? No, the specifications are for the office building.

WS1.7 -Diagram 3, anti-siphon nozzle attachments shall be provided on the hydrants.

A91.E

- The ceilings in the Bunkhouse bathrooms shall be replaced with water resistant gyp. board.

- On Sheet A9.1E, the Bunkhouse Room Finish Schedule states that F2 (TILE) is a floor finish for Rooms 002, 003, 004, 008, 009, 010, 107, 108, & 109. Is this correct or should it be vinyl flooring? If it is tile, would 6" tile be used in these areas? No, the flooring shall be as stated in the finish schedule.

On Sheet A9.1E under Scope of work, notes 2 & 3 state to provide new 4-1/4" wall tile to existing and new bathroom walls. Which rooms specifically are to receive wall tile and are they to receive tile at all walls? Is it just just the toilet rooms or are the wash rooms and shower rooms included? Also, what would be the height of the new finish? Refer to the finish scale for which walls have tile. Tile shall be full height (floor to ceiling) on those walls showing tile.

- On sheet A9.1E, Just below # 7 Bunkhouse – As-Built Photography, it states 4-Plex Keynotes. Title shall be changed to ‘Bunkhouse Keynotes’.

- On sheet A9.1E, 4-Plex Keynotes # 5, it is difficult to see on the photograph but the windows to have a tilt out (awning) component at the bottom of the windows. The awning component is approx. 16” high. Contractor shall verify all windows and rough openings prior to purchasing.

Is there a floor plan, sketch or snapshot available of each 4-plex basement? Answer: see attached pdf of the 4-plex basement for more info on “existing” plumbing and HVAC. Contractor shall verify.

As per the scope of work, we understand that we have a water heater, furnace & floor drain in each 4-plex basement. Are there any other plumbing fixtures in the basements? Answer: Yes there are also washer and dryer hookups located in basement

Are the fixtures near the floor drain? Answer: Unknown at this time.

Will a Radon Mitigation System be required for the 4-plex (the “general residential work required at each residence” tends to indicate this)? Answer: No, additional Radon mitigation is not required at the 4-Plex.

C9.1A - Detail 14 –drainage sump shall have a 4” overflow pipe installed to the ditch located to the northwest of the sump. Pipe shall have a screened cover. Sump shall have a lockable cover. These items are in addition to the replacement sheet C9.1A attached.

C1.1A - All downspouts and rainwater leader from new office shall be tied to the Drainage Sump. The references to roof drains and foundation lines connecting to sumps on this sheet shall be eliminated. These comments are in addition to the replacement sheet C1.1A attached.

A1.1A – Construction notes 21 and 22 shall be eliminated from this sheet. The references to roof drains and foundation lines connecting to sumps on this sheet shall be eliminated.

D2.1B – Garage Demolition Keynote 1 shall be changed to eliminate existing O.H. doors and hardware. Contractor shall replace with new insulated doors similar to those that will be installed on the other two garages.

A2.1F – Replace Overhead door to storage room 102, with an insulated metal door and new hardware. New overhead door shall match existing doors as closely as possible in style and shape.

· The new storage room 102 is actually located one bay to the north. All items shall be move to the north accordingly.

F2.1A - All modular furniture service modules shall be lockable and factory installed grommets shall be located in each desk top and return.

All buildings shall be dried in completely prior to starting any interior finish work.

Provide an option item price for the installation of 1150’ of 4-foot high chainlink fence around the residences. This is the same amount that is being demolished under this contract. This shall also include 6 gates for foot traffic and 5 double wide gates for vehicle access.

All Aggregate Surfacing and backfill under this contract:

Erionite is a naturally occurring, asbestiform microscopic, fibrous mineral which is not currently regulated by EPA. Erionite appears to be associated with geologic formations containing volcanic ash deposits (Arikaree, Brule, and Chadron). Aggregate surfacing originating from these geologic formations may contain erionite.

The Contractor shall provide test results from a certified testing laboratory that indicates the % erionite by dry volume as determined by the Polar Light Microscopy (PLM) method for imported aggregate(s). Samples tested must be representative of the material proposed for this project. Test results shall include a copy the sampling plan and a copy of the chain of custody for the sample. At a minimum the sampling plan shall include the source location including GPS coordinates; the name and contact information for the person collecting the sample; a sketch showing specific sample locations; photographs of actual sample locations; the sampling equipment and method; and the depths below grade before adding to the composite sample.

Aggregate material(s) that will be encapsulated by concrete, asphalt, or on-site native material that contains erionite will accepted provided it otherwise meets the requirements of this contract. However, if erionite is detected in the aggregate, the Contractor shall submit a plan to mitigate the risk of airborne exposure from erionite to workers and persons at the project site prior to importing the aggregate.

Dust abatement:

All dust emissions resulting from the Contractor's operations shall be kept to a minimum.

Vermiculite containing asbestos is known to be present in the attics of all the residences and the office building. Abatement shall be performed by accredited abatement designer and abatement contractor/workers. Other known locations of asbestos are as follows:

North Residence - 9x9 vinyl floor tile in basement (removed in 2006) South Residence - 30 sq.ft. linoleum in bathrooom contains 20% Chrysolite These areas shall also be abated by accredited abatement contractors. If other material is suspected of containing asbestos the contractor shall notify the Contracting Officer, before proceeding with demolition or removal.

See attached replacement sheets for C1.1A, C1.2A and C9.1A. These sheets are replaced in their entirety. Also reference above notes for any additional items that may have not been included on those replacement sheets