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← Document results/DEP Box 11/DEP EXTERIOR CLEAN UP - Also See Building Lists #2
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Building listing and air sampling results, Manhattan, Nov-Dec 2001

Machine-extracted title · confidence 90%

List of Manhattan buildings with details on air sampling results and clean-up activities.

NYC-WTC_000150835–000150837

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

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NYC 9/11 Public Portal Document

NEW YORK CITY DEPARTMENT OF ENVIRONMENTAL PROTECTION

I COST ESTIMATE |

Total Number of Buildings 200+ 50* =250 CLEAN UP COST -ROOF Estimated area % of buildings Number of Clean up Total of contamination buildings buildings Cost/ sq.ft Cost

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

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

1000-5000 sq.ft 70% 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 =35x 1,250 = $43,750

Total cost for sampling = $ 155,750 & analysis

fa<;:ade Costs are difficult 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

NYC-WTC_000150837

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NYC-WTC_000150837Source: NYC Law Department, mirrored locally

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