HAWC OBSERVATORYPRELIMINARY COST ANALYSISPRELIMINARY COST SUMMARY

PRE-FAB METAL BUILDINGITEM UNITS UNIT COST COST NOTES

Kirby Building

Lump Sum $1,545,510 $1,545,510

$16.76/

m2

Braemar #1

Lump Sum $786,032 $786,032 $12.73/

m2

Braemer #2

Lump Sum $1,087,425 $1,087,425

$11.35/

m2

Erection Lump Sum $1,328,000 $1,328,000

Foundation Excavation

1,591 m3 $7/m3 $11,137 Grade beam

Concrete Foundation

1,591 m3 $109/m3 $173,419 All inclusive

Curtains 15,46o m2 $77.62/m2 $1,200,000

30 mil

Column Boots

126 Each $250/Boot $ 31,500 30 mil

TOTAL COST

$3,831,481

Braemar #2

FLOATING COVERITEM UNITS UNIT COST COST NOTES

60 mil tension floating cover

26,650 m2 $78.80/m2 $2,100,000 60 mil 5 plyw/ tiedown

Curtains 15,460 m2 $64.68/m2 $1,000,000 30 mil

Foundation Excavation

512 m3 $7/m3 $3,586 Grade beam

Concrete Foundation

512 m3$109/m3 $55,808 Grade beam

Faraday Cage

Lump Sum $98,000 $98,000 14 lines

TOTAL COST

$3,257,394 Layfield cost

FLOATING COVER - BASISQuote from LayfieldFabric is 60 mil/5 Ply HypalonCover can be floated at 2m water depthCurtains attached to the bouyed tension cablesNon-corrosive cables at 3m+/-attached to grade

beamsDetailed to provide light-tight constructionHatch ports for access & maintenance from topsideRigid enough to support personnelROV available to support maintenance and

servicing

LINED PONDITEM UNITS UNIT

COSTCOST NOTES

Excavation 107,712 cu. meters

$ 3.73/cu. meter

$401,766

Subsurface Drain

4056 linear meters

$ 24.64/ meter

$107,000 $99,940 lines$7,057 EB&C

Embankment

24,868 cu. meters

$ 5.21/cu. meter

$129,562

Liner 29,448 sq. meters

$ 6.52/sq. meter

$192,000 30 ml thick

Bedding Material

8,889 cu. meters

$0.92/cu. meter

$8,178 1 foot thick

Spoil MaterialDisposal

82,844 cu. meters

$4.02/cu. meter

$333,033 ½ mile truck & drop

TOTAL COST

$ 1,171,539

COST SUMMARYITEM ITEM

POND $1,171,539 POND $1,171,539

METAL BUILDING

$3,831,481 FLOATING COVER

$3,257,394

SUBTOTALPOND/BUILDING

$5,003,020 SUBTOTALPOND/FLOAT COVR

$4,428,933