Documentation establishing Tier I, II, and III action levels for lead and other contaminants based on EPA and HUD guidance.
NYC-WTC_000140645Folder label: “M.G: EPA INDOOR AIR WORKING GROUP MTGS.”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
1) Expanded from ambient air monitoring program -* need to address long-term as well as acute/subchronic exposures
- Tiered Approach
Tier I - action level Tier II - review Tier III - clearance
- Used existing regulations/guidance where applicable
Examples;
NAAQS for Pb (1.5 ug/m^) - action level for indoor air
HUD Pb Standard for floors (40 ug/ft2) - action level for interior dust
- Otherwise developed risk-based screening levels
Tier I > E-04 cancer risk x 1 yr exposure duration Tier II E-04 x 1 yr - E-04 x 30 yr Tier III < E-04 x 30 yr (or background)
NYC-WTC_000140645
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Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
NYC-WTC_000140817
Document describing the expanded monitoring program approach using existing regulations to define action levels for indoor air.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.980
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140647
Table defining action thresholds for lead in indoor air using NAAQS and background values to determine required cleaning measures.
1 shared non-person entities · Same agency, volume and box · similarity 0.908
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000160878
EPA notice of chain-of-custody and benchmarks presentation for WTC Taskforce meeting on April 8, 2002.
1 shared non-person entities · similarity 0.946
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164862
Document introduction describing a cross-agency group tasked with identifying contaminants and establishing health-based screening levels.
1 shared non-person entities · similarity 0.946
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000151128
Report establishing health-based screening levels for the indoor environment with cross-agency representation.
1 shared non-person entities · similarity 0.945
machine-extracted · confidence unavailable · Check page ↗1 shared non-person entities · similarity 0.918
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000162222
EPA staff distributed an environmental laboratory report to federal and city agencies on May 15, 2002.
1 shared non-person entities · similarity 0.918
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000176160
Draft assessment summarizing eight months of monitoring data regarding air, dust, and water contaminants at the WTC site and surrounding areas.
1 shared non-person entities · similarity 0.913
machine-extracted · confidence unavailable · Check page ↗1 shared non-person entities · similarity 0.912
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000186132
Draft document outlining health effects screening criteria for ambient air developed by EPA Region 2 in October 2002.
Similar document embedding; no shared entity or topic indexed. · similarity 0.910
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164830
DEP internal memo circulating draft EPA screening level standards for asbestos, fiberglass, and silica in indoor air and settled dust for agency comment.
1 shared non-person entities · similarity 0.905
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000142716
Log of DEP activities coordinating with other agencies for street clean-up and determining road reopening status.
1 shared topics · similarity 0.905
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
NYC-WTC_000164862
Document introduction describing a cross-agency group tasked with identifying contaminants and establishing health-based screening levels.
Similarity score 1.000 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000151128
Report establishing health-based screening levels for the indoor environment with cross-agency representation.
Similarity score 0.999 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140817
Document describing the expanded monitoring program approach using existing regulations to define action levels for indoor air.
Similarity score 0.990 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000160878
EPA notice of chain-of-custody and benchmarks presentation for WTC Taskforce meeting on April 8, 2002.
Similarity score 0.989 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000160878
EPA notice of chain-of-custody and benchmarks presentation for WTC Taskforce meeting on April 8, 2002.
Similarity score 0.957 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000160878
EPA notice of chain-of-custody and benchmarks presentation for WTC Taskforce meeting on April 8, 2002.
Similarity score 0.956 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Readers open these alongside this record — through an Ask answer, the same folder, or indexed similarity. Not a claim they are about the same event.
Facsimile cover sheet transmitting documents regarding environmental work at 102 Greenwich Street.
Cited alongside this record in an Ask answer
NYC-WTC_000128550
Asbestos inspection report notification form submitted to NYC DEP for 102-104 Greenwich Street.
Cited alongside this record in an Ask answer
Cited alongside this record in an Ask answer
NYC-WTC_000140817
Document describing the expanded monitoring program approach using existing regulations to define action levels for indoor air.
Cited alongside this record in an Ask answer
Report establishing health-based screening levels for the indoor environment with cross-agency representation.
Cited alongside this record in an Ask answer