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← Document results/DEP Box 11/WTC DC TO RC LETTERS CALLEHAN WHITMAN ETC. WARD DOCTOROFF KENNY
Document / 6 pages

EPA letter on WTC site visual assessments, Feb 2002

Machine-extracted title · confidence 100%

EPA letter to DEP regarding visual assessments of building exteriors for debris in January and February 2002.

NYC-WTC_000151612–000151617

Folder label: “WTC DC TO RC LETTERS CALLEHAN WHITMAN ETC. WARD DOCTOROFF KENNY

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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 Cleanup 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 = 35 x 1,250 = $43,750

Total cost for sampling = $155,750 & analysis

FACADE 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_000151617

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NYC-WTC_000151617Source: NYC Law Department, mirrored locally

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