NRMJ10002200435 Statement of Work.docx

Mauna Loa Observatory Keeling Building Addition

Statement of Work (SOW)

Narrative Including Base Contract Requirements Optional Contract Line Items

SOW for the following Base Contract and Options:

CLIN. 01: Base contract: Keeling Addition CLIN. 02: Option - Chin Building Relocation CLIN. 03: Option - Alternative to Chin Building Relocation CLIN. 04: Option - Conductive Concrete CLIN. 05: Option - External Cistern CLIN. 06: Option - Original Keeling Building Partition CLIN. 07: Option - Septic System

Summary:

The NOAA Global Monitoring Laboratory (GML) Mauna Loa Atmospheric Baseline Observatory (MLO) is located on the Big Island of Hawaii, at 11,141 ft above sea level on the north flank of the Mauna Loa volcano. The site is often regarded as the “premier atmospheric science site on earth” and is home to numerous high-profile data sets including the “Keeling Curve” that first documented the rise in carbon dioxide in our global atmosphere. The observatory conducts well over 250 daily climatological measurements, some as precise as 1 part in a trillion.

The Keeling Building, located at MLO, is the original structure at the site and is a sixty-five year old (built in 1956), single story, rectangular, cinder block structure with an A-frame wood truss roof system that is clad with a vented corrugated metal deck. There are twelve (12) single pane operable windows in the Keeling Building and two (2) wood access/egress doors. The entire area is open office space with a verified gross square footage of 1,250 square feet (GSF). The building is listed in the NOAA RPMD database as asset HIM01903.

Due to the age of the Keeling building and significance of the science that it represents, NOAA has determined that the original cinder block constructed building is likely eligible for the national historical register. However, it has not been listed as such. The existing mercury deck (roof-level deck) located on the east end of the building has been rebuilt multiple times over the decades and the current configuration is not original. Similarly, the area under the mercury deck was enclosed to serve as a storage area and is also not considered to be original. The west end of the Keeling building has seen two different additions over the decades (small staff bathroom and tank storage room) and neither of these modifications are considered to be original or part of the historic nature of the Keeling building.

All work done on the Keeling building shall be in accordance with the Secretary of the Interior's Standards for Rehabilitation. The Standards (Department of Interior regulations, 36 CFR 67) pertain to historic buildings of all materials, construction types, sizes, and occupancy and encompass the exterior and the interior, related landscape features and the building's site and environment as well as attached, adjacent, or related new construction. The Standards are to be applied to specific rehabilitation projects in a reasonable manner, taking into consideration economic and technical feasibility.

1. A property shall be used for its historic purpose or be placed in a new use that requires minimal change to the defining characteristics of the building and its site and environment.

2. The historic character of a property shall be retained and preserved. The removal of historic materials or alteration of features and spaces that characterize a property shall be avoided.

3. Each property shall be recognized as a physical record of its time, place, and use. Changes that create a false sense of historical development, such as adding conjectural features or architectural elements from other buildings, shall not be undertaken.

4. Most properties change over time; those changes that have acquired historic significance in their own right shall be retained and preserved.

5. Distinctive features, finishes, and construction techniques or examples of craftsmanship that characterize a property shall be preserved.

6. Deteriorated historic features shall be repaired rather than replaced. Where the severity of deterioration requires replacement of a distinctive feature, the new feature shall match the old in design, color, texture, and other visual qualities and, where possible, materials. Replacement of missing features shall be substantiated by documentary, physical, or pictorial evidence.

7. Chemical or physical treatments, such as sandblasting, that cause damage to historic materials shall not be used. The surface cleaning of structures, if appropriate, shall be undertaken using the gentlest means possible.

8. Significant archeological resources affected by a project shall be protected and preserved. If such resources must be disturbed, mitigation measures shall be undertaken.

9. New additions, exterior alterations, or related new construction shall not destroy historic materials that characterize the property. The new work shall be differentiated from the old and shall be compatible with the massing, size, scale, and architectural features to protect the historic integrity of the property and its environment.

10. New additions and adjacent or related new construction shall be undertaken in such a manner that if removed in the future, the essential form and integrity of the historic property and its environment would be unimpaired.

The MLO facility is located at the end of an 18-mile one-lane access road reachable from Saddle Road. The start of the Mauna Loa Access Road is located just to the east of the more well-known access to the Mauna Kea Visitor Center and telescopes. Logistically, the site is at over 11,200 feet in altitude and the sun (UV) conditions can be strong and the air temp significantly cooler than elsewhere on the island. The 18-mile driveway can be challenging for longer vehicles due to the narrow width, rolling topography, and occasional sharp corners. The power lines do cross over the road in multiple locations along the upper half of the MLO access road and may pose an overhead obstruction issue for very tall vehicles (no known issues with the powerlines obstructing access to the site historically). The one-way commute time to the MLO site from either Hilo or Kona typically takes ~90-min.

Scientific measurements obtained at MLO often represent the global background conditions for the atmospheric research community. As such, the measurements taken at the site are highly precise and need to be safeguarded to ensure that indoor room air and/or local site contamination does note negatively impact the long-term records. NOAA has developed a comprehensive banned construction materials (chemicals) list and each product used at the site must be cleared against this banned chemical list prior to use. The banned construction materials list will be provided to vendors and NOAA can assist with reviewing individual products as needed. Furthermore, it will be required to keep the science at MLO operational as much as possible throughout construction activities. For example, temporary power might be required and/or a phased approach to building modifications that allow for scientific systems to stay online to the greatest extent possible. Some of the existing tower guy lines (east) terminate within the footprint of the site redevelopment for the future tower science building and workshop/garage locations and will need to be either temporarily modified or the construction phased to avoid the conflict.

The MLO site has a number of identified code compliance improvements needed. For example, the interior of the Keeling building currently has a conflict between active plumbing and the electrical breaker panel. All new construction work shall meet current code requirements.

The Federal government is required to follow the National Environmental Protection Act (NEPA) process for all Federal actions. NEPA does apply to this construction effort and NOAA is actively working to get the necessary approvals from the State of Hawaii (Division of Land and Natural Resources (DLNR) / State Historic Preservation Office (SHPO)) and finalize the NEPA process. The NEPA process is running in parallel with this procurement effort and it is anticipated that the NEPA will be finalized after this procurement has been awarded. As such, it is imperative that any/all outcomes resulting from the NEPA process shall be incorporated into the final design before a notice to proceed can be issued and construction begins.

NOAA is interested in building sustainably, using robust materials that support low maintenance over the long-term, and incorporating the elements of LEED building practices (and certification) wherever possible. Thus, the biddable documents shall include the opportunity for bidders to provide alternate approach and products based on reliability and longevity and include value enhancing options to allow for LEED elements.

Exclusions:

The bid set of documents dated 07/30/2021 illustrate the following items which shall be excluded as part of the Work. No costs shall be included or incurred for the following items illustrated on the bid set:

1. Walkways to MLSO facility as shown on site plan (A0.1).

2. Alt. Bid for Eastern White Pine 2x6 T&G in Office and Kitchenette for Keeling Addition as shown on site plan (A1.4).

3. Septic location as shown on (A0.1) is not accurate.

Contract Line Item No. 01: Base contract: Keeling Addition Keeling Addition – New Bathroom(s), Kitchenette, and Office/Break Area:

1. Using the drawing set provided during the bid process, finalize design and deliver stamped drawings for construction.

2. Banned construction compounds list must be adhered to.

3. Demolish, remove and dispose of the western end of Keeling building (existing bathroom and tank room addition). Work includes:

a. Removal of the old bathroom

b. Removal of the indoor water collection tank

c. Removal of the tank/cylinder storage room

4. Reinforce/add concrete to existing pad at western end of Keeling building to support new bath/kitchenette/office building addition.

a. Note: Existing electrical junction box is located outside of the Keeling western door. This junction box will need to be relocated or incorporated into the floor design and accessible from inside the new facility.

5. Provide power/grounding for Keeling addition.

6. Construct new Keeling addition for bathroom(s), kitchenette, and office space (detailed below):

a. Stick-built or pre-fab construction that meets requirements is acceptable.

b. Create ~800 sq ft building.

c. Create a new staff bathroom and a visitor bathroom (with separate entrances).

d. Create a layout that will allow office space for 4 personnel to share space. Area shall be configured with four sit/stand desks on casters and with keyboard trays, four adjustable-height office chairs on casters, along with four adjustable-height bar stools to allow additional workstations at a bar-height workbench under the windows. Furnish all furniture above.

e. Create a kitchenette for staff lunches with cabinetry (lowers and uppers), counter tops, full-sized refrigerator, sink (greywater), space for a water cooler (drinking water), and microwave. No hotplate or stove. Electric oven could be optional.

f. Include separate staff storage and mechanical space in the new addition area.

g. Include IT closet location (racks with firewall and switches) in design… could be incorporated into the back of the storage area or mechanical room. Furnish two full-height, locking, IT racks. Provide power (2 dedicated circuits) per IT rack.

h. Furnish lighting (LED) with motion detection/occupancy sensor light switches to overhead lighting circuits.

i. Heating & Ventilation - Existing forced air system in the original Keeling Building is a galvanized duct system that has a single return vent cut into the building with supply registers dropped in the ceiling. The majority of the system is at the exterior (north wall). Remove existing system and patch block, as needed, in the Keeling Building north wall. Furnish a joint HVAC system (no AC required at site) located in the Keeling Addition that also provides service into the old Keeling building. Provide separate controls in each space (original Keeling Building and Keeling Addition) which may require a variable air volume box or a or control damper with ddc controls to modulate airflow.

j. Furnish power and data/network throughout office space to accommodate flexible workspace configurations.

k. Furnish all necessary fire extinguishers placed to meet code requirements.

l. Provide three outdoor convenience outlets with GFCI outlets per code, two located on south wall under future carport and third located outside door on northeast corner of addition (within fenced area).

m. Add two EV charging stations on the exterior (south wall under the future carport roof and east wall of the original Keeling Building near the current mercury deck) to charge future GSA vehicles.

n. The exterior door shall be a stainless-steel block frame with a fiberglass door with artificial wood look. Recommend there is a 12” vision panel built into the door. Include keypad locks on some external doors as specified.

o. Rainwater is collected on site for greywater use in an external holding tank on the west side of the existing Keeling Building.

a. The water collected from the gutters of the Keeling Addition shall be routed to the external cistern holding tank on the west side of the Keeling building.

b. Existing gutters on Keeling Building shall be routed to the external holding tank.

p. Kitchen and bathroom drain/sewer lines should route to the existing site cesspool location.

q. Mechanical louvers (42”x12”) shown on A1.7 will need to be field-coordinated to not conflict with future carport roof.

7. Re-route water catchment from original Keeling Building roof gutters to external cistern on west side of the Keeling Addition.

8. Existing site telecom panel is located inside the original Keeling Building in the northeast corner. Relocate to the new addition or provide a secure location.

Contract Line Item No. 02: Option - Chin Building Relocation Chin Building Relocation:

1. Using the drawing set provided during the bid process, finalize the design package and deliver stamped drawings for construction.

2. Banned construction compounds list must be adhered to.

3. The Chin Building is a 13.5’ x 16’ metal structure and is located where the Keeling addition will be built. The Chin Building will need to be relocated to allow for other work to proceed.

4. Reinforce and enlarge the existing, vacant generator concrete pad to accommodate the Chin building relocation. Work includes providing 18” knee walls that will support the Chin building on all four sides with one door opening.

a. Existing generator pad is 12’ x 19.5’ (4” thick). Pad will need to be extended ~5’ to the south. Measurements should be field verified.

b. The expanded pad size must include 3.5’ walkways on the west and north sides of the relocated Chin building.

c. Existing pad can only be expanded to the east and south due to DOD constraints on the west and north edges of the existing concrete pad.

5. Relocate Chin building to new foundation.

6. Electrical:

a. Provide basic interior overhead lighting (LED).

b. Provide a vent hood or mushroom fan on a switch for venting with manual thermostat control.

c. Provide one subpanel supplied from the Keeling building feed.

i. Provide one quad outlet on each interior wall.

ii. Furnish one full-height, locking, IT rack. Provide power (2 dedicated circuits) for the rack from the Keeling building feed.

7. Furnish all necessary fire extinguishers placed to meet code requirements.

8. Caulk and paint exterior of the Chin Building to match the Keeling Addition.

9. Cable tray and walkway system from Chin building location to west end of Keeling Building addition mechanical room (include 100 linear feet in scope for the Work)

a. Aluminum, ladder style, cable tray ~12” wide and 5.25” deep (specified on A0.1) to accommodate multiple fiber runs from Chin building to Keeling building.

b. Power and grounding for the Chin Building to use this cable tray system.

c. All metal walkways should be 36” galvanized steel, heavy-duty, grip strut panels as specified on A0.1 and must be connected to the site grounding system.

Contract Line Item No. 03: Option - Alternative to Chin Building Relocation

Chin Building Relocation Alternative:

1. No drawing(s) for this option were provided during the bid process. Reference bid set drawings for CLIN 2 above for general guidance. This option should include all necessary design work to deliver a stamped drawing(s) for construction.

2. Banned construction compounds list must be adhered to.

3. Demo existing Chin building and foundation and remove all materials from the MLO site.

4. Reinforce and enlarge the existing, vacant generator concrete pad to accommodate a 20’ sea container installation.

a. Existing generator pad is 12’ x 19.5’ (4” thick). Pad will need to be extended ~4’ to the east. Measurements should be field verified.

d. The expanded pad size must include 3.5’ walkways on the west and north sides of the sea container.

e. Existing pad can only be expanded to the east and south due to DOD constraints on the west and north edges of the existing concrete pad.

5. Provide a new 20’ sea container (high cube at 9.5’ ft height) to the location of the former generator pad to serve as a site communications shelter.

a. Coordinate exterior color of sea container with Keeling Building colors.

b. Provide interior lighting circuit (from Keeling Building panel) with switch at door and a minimum of 2 interior, LED, low-profile light fixtures (centered along ceiling) with metal protective cages around each fixture.

c. Provide a vent hood or mushroom fan on a switch for venting with manual thermostat control.

d. Provide one subpanel supplied from the Keeling building feed.

a. Provide one quad outlet on each interior wall.

b. Furnish one full-height, locking, IT rack. Provide power (2 dedicated circuits) for the rack from the Keeling building feed.

e. Provide a standard-width door on the north side of the sea container for regular access. Stainless-steel block frame and fiberglass door or similar from sea container manufacturer. Recommend a 12” vision panel built into the door and include door handles and keypad lock on the external door as specified.

f. Provide reinforced north wall and roof to support optional attachment of communications antenna to exterior wall and roof.

g. Provide six 4” conduits and dust covers in the north wall (locations TBD) to accommodate antenna cables entering into the sea container.

h. Anchor the sea container to the foundation according to manufacturer specs.

i. Furnish all necessary fire extinguishers placed to meet code requirements.

4. Cable tray and walkway system from sea container location to west end of Keeling Building addition mechanical room (include 100 linear feet in scope for the Work)

d. Aluminum, ladder style, cable tray ~12” wide and 5.25” deep (specified on A0.1) to accommodate multiple fiber runs from sea container to Keeling building.

e. Power and grounding for the sea container to use this cable tray system.

f. All metal walkways should be 36” galvanized steel, heavy-duty, grip strut panels as specified on A0.1 and must be connected to the site grounding system.

Contract Line Item No. 04: Option - Conductive Concrete Conductive Concrete:

1. Using the drawing set provided during the bid process, finalize the design package and deliver stamped drawings for construction.

2. Banned construction compounds list must be adhered to.

3. Provide conductive concrete for Keeling Addition foundation mat slab to create an Ufer ground in lieu of standard concrete mix design as specified on A1.1.

a. Conductive concrete contains carbon.

b. Prior to pouring concrete, install copper cabling to the reinforcement steel (rebar) to bond the concrete pad to the site grounding system.

c. Ensure that copper cabling is protected from damage where it exits concrete.

d. Connect copper ground to the site grounding system.

Contract Line Item No. 05: Option - External Cistern

Keeling Building External Cistern:

1. No drawing(s) for this option were provided during the bid process. Reference bid set drawings for CLIN 2 above for general guidance. This option should include all necessary design work to deliver a stamped drawing(s) for construction.

2. Banned construction compounds list must be adhered to.

3. Demolish and remove the old cistern.

4. Replace with new cistern at same location:

a. Ensure the tank top is below the Keeling Building floor grade height (>1 ft below).

b. Level and compact pad area for new tank.

c. Galvanized exterior tank.

d. Flexible polyethylene liner interior.

e. Minimum capacity of 10,000 gallons.

f. Connect rain gutter catchment from Keeling building and Keeling Addition.

g. Add cistern by-pass valve (upstream of cistern) to divert rainwater capture during eruption events, during gutter cleaning, etc.

h. Ensure the tank has an overflow installed at the high water line and fire pump connection (capped) installed at low/no water line.

5. Fill the new tank with potable water and test for leaks.

Contract Line Item No. 6: Option - Original Keeling Building Partition Original Keeling Building Partition:

1. Using the drawing set provided during the bid process, finalize the design package and deliver stamped drawings for construction.

2. Banned construction compounds list must be adhered to.

3. Construct partition inside the original Keeling Building. Reconfigure the interior space to promote separated science and outreach areas. Must be a permanent separation to allow the public to view historic interior and science within the Keeling building however not able to access. Vendor to provide barrier design and options (i.e. knee wall with glass partitions, or similar), see A1.2 for specifications. Exact final location of the partition wall is still to be determined.

4. Furnish all necessary fire extinguishers placed to meet code requirements with new space design and partition.

Contract Line Item No. 7: Option - Septic System Septic System:

1. Provide a septic system (tank, leach field, seepage pit, etc.) as appropriate for the Keeling building and NDACC building.

a. Design system size to accommodate the Keeling bathrooms and kitchenette and the NDACC building bathroom and kitchenette.

b. Tie existing sewer outfall (cesspool) pipes from both the NDACC and Keeling buildings into the new septic system.

c. Capture leach field/ seepage pit overflow to drain at existing cesspool location (future site grounding rod).

d. Coordinate sewer lines to not conflict with power/grounding lines where they intersect.

e. Include sewer line trap cleanouts at a distance not to exceed every 100’.

2. Demolish and remove old outhouse location (~8’x4’ in size)

a. Remove wooden outhouse.

b. Mitigate outhouse outfall in accordance with State of HI regulations (clean, fill, etc.).

c. Cover area with lava rock to match existing grade.