The order the City kept.

NYC-WTC_000140280

Document header reiterating the requirement to preserve World Trade Center documents for potential legal proceedings against the City.

NYC-WTC_000140283

Contract excerpt specifying data submission protocols, laboratory delivery instructions, and monitoring responsibilities for the WTC project.

NYC-WTC_000140284 – NYC-WTC_000140285

Addendum to a City contract requiring contractors to handle property claims and authorizing additional financial retainage for performance security.

NYC-WTC_000140286 – NYC-WTC_000140288

Review comments on a proposed scope of work document regarding the roles of technicians and monitors in the World Trade Center cleanup process.

NYC-WTC_000140290

Guidance document for determining presence of World Trade Center-related dust in residential ventilation systems in Lower Manhattan.

NYC-WTC_000140291

Bibliography section listing standards from NADCA and SMACNA required for conducting World Trade Center dust evaluations in HVAC systems.

NYC-WTC_000140292

Section detailing professional qualifications and health hazards like asbestos and lead encountered during World Trade Center ventilation evaluations.

NYC-WTC_000140295

Identification of ventilation system components most likely to have WTC-related dust accumulation, including air intakes, dampers, filters, and downstream components.

NYC-WTC_000140296

Technical guidelines defining which ventilation components are included in the World Trade Center dust evaluation and where dust accumulation occurs.

NYC-WTC_000140297

Addendum defining scope for cleaning World Trade Center dust from ventilation components including ducts, coils, and filters.

NYC-WTC_000140298

Addendum defining inspection scope for HVAC components at World Trade Center sites to assess dust accumulation.

NYC-WTC_000140299

Addendum defining visual inspection methods and evaluation criteria for HVAC systems impacted by World Trade Center dust.

NYC-WTC_000140300

Scope of work detailing evaluation procedures for HVAC systems to assess World Trade Center dust impact and cleaning recommendations.

NYC-WTC_000140301

Technical procedures for collecting, sealing, and labeling bulk dust samples during HVAC system evaluation.

NYC-WTC_000140302

Form for recording building contact details, facility type, and HVAC system components during pre-cleaning evaluations.

NYC-WTC_000140303

Inspection form for documenting dust loading, filter conditions, mold growth, and animal evidence in fan coil and heat pump units within buildings.

NYC-WTC_000140304

Data sheet for recording dust presence and depth on central ventilation components including dampers, coils, and blower assemblies.

NYC-WTC_000140305

Protocol requiring sampling if light to heavy dust is present that is not visually identified as World Trade Center related debris.

NYC-WTC_000140312

Requirements for technician certification and listing of analytical methods for asbestos, mercury, and other contaminants in air samples.

NYC-WTC_000140313

Qualification standards for technicians and specified analytical methods for asbestos, mercury, and other contaminants in air sampling.

NYC-WTC_000140314

Specifications for data to be recorded in monitoring logs including flow rates, sample volumes, weather conditions, and cleaning methods.

NYC-WTC_000140319

Procedures for monitor access to EPA website for obtaining building information, scheduling cleaning and sampling activities with tenants and contractors, and inputting project…

NYC-WTC_000140320

Detailed specifications for recording air sampling parameters including media type, flow rates, elapsed time, sample volume, QC samples, weather conditions, cleanup methods, and…

NYC-WTC_000140321

Requirements for personnel qualifications in HVAC system design and indoor environmental sampling practices, procedures for evaluating and documenting HVAC cleaning and mold…

NYC-WTC_000140327

Outlines specific cleaning steps for heaters and dishwashers, including HEPA air filtration requirements and supervisor presence protocols.

NYC-WTC_000140359

Details conditions for starting sampling, including visual inspections, drying surfaces, and using leaf blowers for aggressive air testing.

NYC-WTC_000140360

Specifies electronic submission timelines for monitoring dates, sample IDs, and post-cleaning status data to EPA and DEP databases.

NYC-WTC_000140361

Specifies electronic submission timelines for monitoring dates, sample IDs, and post-cleaning status data to EPA and DEP databases.

NYC-WTC_000140362

Draft scope establishing a DEP/USEPA assistance program for residents south of Canal Street concerned about WTC dust in their apartments.

NYC-WTC_000140363

Lists certification and experience requirements for monitors and technicians conducting asbestos sampling and HVAC evaluations.

NYC-WTC_000140364

Lists certification and experience requirements for monitors and technicians conducting asbestos sampling and HVAC evaluations.

NYC-WTC_000140365

Details requirements for obtaining resident authorization and assessing conditions like mold or mixed-use buildings before determining cleanup scope.

NYC-WTC_000140366

Scope of work excerpt detailing air sampling protocols, visual inspection requirements, and HVAC operation rules prior to sampling.

NYC-WTC_000140367

Scope of work excerpt detailing visual inspection requirements and air conditioning protocols prior to post-cleaning air sampling.

NYC-WTC_000140368

Details requirements for labeling samples, completing chain-of-custody forms, and submitting data to EPA within 24 hours.

NYC-WTC_000140369

Contractor requirements for documenting sampling activities, labeling samples, and shipping them to EMSL laboratories in New York.

NYC-WTC_000140370

Document questioning the use of electric leaf blowers for indoor air agitation during sampling in occupied Manhattan apartments.

NYC-WTC_000140371

Technical specifications for collecting air samples via NIOSH methods and wipe samples for dioxin, metals, and mercury analysis.

NYC-WTC_000140372

Edited draft scope of work for residential post-WTC debris cleaning and monitoring with sampling protocols.

NYC-WTC_000140373

Guidelines requiring HVAC evaluation and cleaning before residential space cleanup to prevent cross-contamination of duct systems.

NYC-WTC_000140376

Initial draft outlining regulatory compliance, roles, and the scope of site inspections and cleaning activities for WTC impacted buildings.

NYC-WTC_000140382

Contractual draft establishing regulatory compliance and roles for site inspections, assessments, and monitoring of dust remediation.

NYC-WTC_000140453

Unreadable text from a draft document regarding the World Trade Center dust cleaning program.

NYC-WTC_000140455

Contract statement defining procedures for collecting settled and airborne dust samples to analyze contaminants in fourteen selected buildings.

NYC-WTC_000140458

Contract text outlining required reports, health and safety plan submissions, and compliance with federal safety standards.

NYC-WTC_000140459

Contract text defining procedures for issuing technical direction and requirements for disclosing conflicts of interest.

NYC-WTC_000140460

Table listing specific sampling parameters and quantities for various building surfaces in fourteen selected buildings.

NYC-WTC_000140461

Technical attachment specifying ASTM methods for collecting and analyzing asbestos and lead in settled dust from residential surfaces.

NYC-WTC_000140465

Guidance document providing procedures for evaluating the presence of World Trade Center dust in residential ventilation systems.

NYC-WTC_000140466

Document listing applicable standards like ACR 2002 and NADCA 97-05 for the assessment and cleaning of HVAC systems.

NYC-WTC_000140467

Contract section specifying minimum professional requirements and health safety protocols for individuals evaluating ventilation systems.

NYC-WTC_000140470

Guidelines for evaluating direct exhaust systems and identifying dust accumulation points in residential ventilation equipment.

NYC-WTC_000140471

Addendum listing required inspection equipment and typical HVAC system components for World Trade Center dust cleaning.

NYC-WTC_000140472

Addendum detailing all ventilation system components to be inspected and cleaned, including intake louvers, ducts, coils, blower assemblies, and duct linings at World Trade Center.

NYC-WTC_000140473

Addendum specifying accessible HVAC components for inspection and methods for accessing system elements during World Trade Center dust evaluation.

NYC-WTC_000140474

Addendum outlining visual inspection protocols and methods for evaluating World Trade Center dust accumulation in HVAC systems.

NYC-WTC_000140475

Criteria for distinguishing WTC dust from other contaminants and determining the need for cleaning or sampling.

NYC-WTC_000140476

Protocols for collecting bulk dust samples from HVAC systems and documenting sample locations and conditions.

NYC-WTC_000140478

Checklist for assessing dust loading and damage on specific HVAC components like fan coils and ducts during World Trade Center evaluations.

NYC-WTC_000140479

Form section for recording dust presence and estimates in central ventilation system components during World Trade Center evaluations.

NYC-WTC_000140480

Log sheet for identifying up to five specific locations requiring environmental sampling due to visible dust accumulation.

NYC-WTC_000140561

Contract scope defining regulations and procedures for residential dust cleaning, air sampling, and HEPA vacuuming.

NYC-WTC_000140587 – NYC-WTC_000140588

Contract scope defining regulations and procedures for residential dust cleaning, air sampling, and HEPA vacuuming.