883a-20P - Bear Park Phase III

1. GC-1 to purchase and have on site at time of need all materials on Exhibit B marked with GC-1
2. GC-1 to purchase all materials required for electrical, water, and drainage infrastructure as specified in Exhibit A
3. GC-1 to purchase all materials for perimeter drain per Exhibit A
4. GC-1 responsible for all construction survey staking. An AutoCAD drawing of the civil plans will be provided to Contractor.
5. GC-1 to excavate for climate battery per Exhibit A

a. Timing of climate battery excavation to occur in coordination with CMC team and climate battery workshop leader (GC-2) to ensure climate battery installation workshop is able to be scheduled appropriately.

6. GC-1 to install pier foundation for dome per Exhibit A. Work to include, but not limited to:

a. Location of piers - Process to lay out location of piers shall occur in accordance with Exhibit A

i. Layout kit includes 5 thin steel cables and 10 large key-rings to form radius chords

b. Excavation for piers
c. Pier Specification

i. (22) 12” diameter concrete piers installed in accordance with the Building Permit plan set approved by the State of Colorado (provided in Exhibit A)

1. A very similar engineer stamped foundation plan is found in Exhibit A and now also includes the additional vestibule piers
2. All items specified for pier construction except concrete are included in Exhibit A
3. Piers should be braced and have three (3) days to set prior to backfill
4. Third party testing of the piers will be the responsibility of CMC
5. Verification of the pier locations is the contractor’s responsibility

d. Bracing of piers until climate battery installation and backfill is complete

7. GC-1 to install perimeter drain per Exhibit A

a. Simultaneously with the climate battery installation or at contractor’s discretion. GC-1 shall consult with CMC and GC-2 to ensure that installation of the perimeter drain does not negatively interfere with the climate battery workshop.

8. GC-1 to be onsite during GC-2 led Climate Battery Installation Workshop with estimated duration of 2- 3 days. The days for the climate battery workshop shall be coordinated between CMC, GC-1 and GC-2 in May 2020, with the workshop to take place in late June or early July 2020. GC-1 will be on site to do the following:

a. Provide and operate appropriate equipment to remove pier bracing
b. Per Exhibit A and in consultation with GC-2, GC-1 will be responsible to:

• Backfill climate battery
• Install pier insulation
• Installation of rodent-proof wire mesh screening
• Incorporate high quality compost and/or top soil to top 2’ of material while backfilling over climate battery, and tamp soil under direction from climate battery workshop leader.
• Intent is to have higher quality fill used in approximately top 2 feet of backfill of climate battery with majority of other dirt left on site for use at owner’s discretion.
• Amount of material needed to be determined by the clay content present after a soil test of the material at the bottom of the 4’ deep excavation for the climate battery is completed in Spring 2020

9. GC-1 to install drainage infrastructure under dome perimeter pathway around dome as provided in Exhibit A.

10. GC-1 responsible for ground clearing and leveling for dome installation after climate battery installation within 2-3 inches of level as verified by a transit or laser level
11. GC-1 to install and coordinate all water irrigation service lines including the frost-free hydrant as provided in Exhibit A. The irrigation lines are to be stubbed into the growing dome and tested. GC-2 will install the plumbing (backflow preventer, air chucks, valves, and water meter) inside the growing dome.
12. GC-1 to install and coordinate all electrical conduit from the restroom building panel to the stub-in location inside the dome and a capped conduit for the future learning pavilion as provided in Exhibit A.
13. ADD ALTERNATE: GC-1 to install gravel perimeter and paths around dome per Exhibit A

a. To be installed over geotextile weed barrier