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DEP site visit report on building exterior debris, Jan-Feb 2002

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Report on DEP and EPA visual assessments of debris on building exteriors in January and February 2002.

NYC-WTC_000150839–000150842

Folder label: “DEP EXTERIOR CLEAN UP - Also See Building Lists #2

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NYC 9/11 Public Portal Document

COST ESTIMATE A IM Mi ETCZ/ZIT' ■ Total Number of Buildings 200+ 50* = 250

CLEANUPCOST-ROOF

Assumption Area of Number of Clean up Total Contamination buildings Cost/ sq.ft Cost

10% 10,000 sq.ft 25 $3 $750,000

20% 5,000 sq.ft 50 $4 $1,000,000

70% 1000-5000 sq.ft 175 $8 $3,500,000 (Avg .2500 sq.ft) $5,250,000

AIR MONITORING COST

No. of man-hour days = 400 Total man-hours = 400x8 = 3,200 Cost for air monitoring tech. = $35 / hr Total cost for man-hours = $112,000

TEM analysis cost = $35 / sample No. of samples = 1,250 (Five samples at each site)

Total cost for TEM analysis =35x1,250 = $43,750

Total cost for sampling = $ 155,750 & analysis

FACADE Costs are difScult to estimate because of the equipment cost which depends on the height of the building. Approximate cost = $3,000,000

TOTAL PROJECT COST $ 5,405,750+ 3,000,000+ $ 2,000,000** = $ 10,405,750

* Estimate of dirty roofs based on our plan to expand Zone 1 and Zone 2 ** Contingency

I

NYC-WTC_000150840

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NYC-WTC_000150840Source: NYC Law Department, mirrored locally

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