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D R A F T Remedial Action Plan For Inwood Charter School 3896 Tenth Avenue New York, NY Block 2223, Lot 16 OER Project Number 17TMP0187M Prepared for: Inwood Academy for Leadership Charter School 108 Cooper Street New York, New York 10034 [email protected] Prepared by: Remedial Engineering, P.C. 209 Shafter Street Islandia, New York 11749 [email protected] 631-232-2600 FEBRUARY 2017

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D R A F T

Remedial Action Plan

For

Inwood Charter School

3896 Tenth Avenue New York, NY

Block 2223, Lot 16

OER Project Number 17TMP0187M

Prepared for:

Inwood Academy for Leadership Charter School

108 Cooper Street

New York, New York 10034

[email protected]

Prepared by:

Remedial Engineering, P.C.

209 Shafter Street

Islandia, New York 11749

[email protected]

631-232-2600

FEBRUARY 2017

D R A F T

REMEDIAL ENGINEERING, P.C. – i – 2842.0001Y.103R/RAP

REMEDIAL ACTION PLAN

TABLE OF CONTENTS

TABLE OF CONTENTS ....................................................................................................... I 

LIST OF ACRONYMS ....................................................................................................... III 

CERTIFICATION ................................................................................................................ V 

EXECUTIVE SUMMARY ................................................................................................. VI 

REMEDIAL ACTION PLAN .............................................................................................. 1 

1.0  SITE BACKGROUND ............................................................................................... 1 

1.1  Site Location and Current Usage ....................................................................... 1 

1.2  Proposed Redevelopment Plan .......................................................................... 1 

1.3  Description of Surrounding Property ................................................................ 2 

1.4  Environmental Investigation Reports ................................................................ 2 

1.5  Geophysical Investigation ................................................................................. 3 

1.6  Summary of Regulatory Correspondence.......................................................... 4 

1.7  Findings of Environmental Investigation .......................................................... 4 

2.0  DESCRIPTION OF REMEDIATION ...................................................................... 7 

2.1  Objectives .......................................................................................................... 7 

2.2  Summary of Remedial Action ........................................................................... 7 

2.3  Soil Cleanup Objectives and Soil/Fill Management.......................................... 8 

2.4  Engineering Controls ......................................................................................... 8 

3.0  REMEDIAL ACTION MANAGEMENT .............................................................. 10 

3.1  Project Organization and Oversight ................................................................ 10 

3.2  Site Security ..................................................................................................... 10 

3.3  Work Hours ..................................................................................................... 10 

3.4  Construction Health and Safety Plan ............................................................... 10 

3.5  Community Air Monitoring Plan .................................................................... 11 

3.6  Agency Approvals ........................................................................................... 11 

3.7  Site Preparation................................................................................................ 12 

D R A F T Hazardous Materials Remedial Action Plan

Inwood Charter School OER Project # 17TMP0187M

REMEDIAL ENGINEERING, P.C. – ii – 2842.0001Y.103R/RAP

3.8  Traffic Control ................................................................................................. 13 

3.9  Demobilization ................................................................................................ 13 

3.10  Reporting and Record Keeping ....................................................................... 13 

3.11  Complaint Management .................................................................................. 14 

3.12  Deviations from the Remedial Action Plan ..................................................... 14 

4.0  REMEDIAL CLOSURE REPORT ........................................................................ 16 

5.0  SCHEDULE............................................................................................................... 18 

TABLES

1. Summary of Volatile Organic Compounds in Soil 2. Summary of Semi-Volatile Organic Compounds in Soil 3. Summary of Metals in Soil 4. Summary of Polychlorinated Biphenyls in Soil 5. Summary of Pesticides and Herbicides in Soil 6. Summary of Volatile Organic Compounds in Soil Vapor and Indoor and Ambient Air

FIGURES

1. Site Location 2. Site Development Plan (First Floor) 3. Surrounding Land Use 4. Summary of Petroleum-Related and Chlorinated VOCs in Soil Vapor 5. Conceptual Sub-Slab Depressurization System Design

APPENDICES

A. Soil/Materials Management Plan B. Construction Health and Safety Plan (to be included in final RAP) C. Previous Environmental Investigations and Reports (to be included in final RAP) D. Sub-Slab Depressurization System

D R A F T Hazardous Materials Remedial Action Plan

Inwood Charter School OER Project # 17TMP0187M

REMEDIAL ENGINEERING, P.C. – iii – 2842.0001Y.103R/RAP

LIST OF ACRONYMS

Acronym Definition

CAMP Community Air Monitoring Plan

CEQR City Environmental Quality Review

CFR Code of Federal Regulations

CHASP Construction Health and Safety Plan

CO Certificate of Occupancy

DSNY Department of Sanitation

“E” E-Designation

EAS Environmental Assessment Statement

EIS Environmental Impact Statement

ESA Environmental Site Assessment

EC/IC Engineering Control and Institutional Control

ELAP Environmental Laboratory Accreditation Program

FDNY New York City Fire Department

GPR Ground Penetrating Radar

HASP Health and Safety Plan

HAZWOPER Hazardous Waste Operations Emergency Response

IDW Investigation Derived Waste

Notice - NNO Notice of No Objection

Notice - NTP Notice to Proceed

Notice - NOS Notice of Satisfaction

Notice - FNOS Final Notice of Satisfaction

NYC BSA New York City Board of Standards and Appeals

NYC DCP New York City Department of City Planning

NYC DEP New York City Department of Environmental Protection

NYC DOB New York City Department of Buildings

NYC DOF New York City Department of Finance

NYC HPD New York City Housing Preservation and Development

NYCRR New York Codes Rules and Regulations

NYC OER New York City Office of Environmental Remediation

D R A F T Hazardous Materials Remedial Action Plan

Inwood Charter School OER Project # 17TMP0187M

REMEDIAL ENGINEERING, P.C. – iv – 2842.0001Y.103R/RAP

Acronym Definition

NYS DEC New York State Department of Environmental Conservation

NYS DEC DER New York State Department of Environmental Conservation Division of Environmental Remediation

NYS DEC PBS New York State Department of Environmental Conservation Petroleum Bulk Storage

NYS DOH New York State Department of Health

NYS DOT New York State Department of Transportation

OSHA United States Occupational Health and Safety Administration

PAHs Polycyclic Aromatic Hydrocarbons

PCBs Polychlorinated Biphenyls

PE Professional Engineer

PID Photo Ionization Detector

PM Particulate Matter

QEP Qualified Environmental Professional

RA Register Architect

RAP Remedial Action Plan

RCA Recycled Concrete Aggregate

RCR Remedial Closure Report

RD Restrictive Declaration

RI Remedial Investigation

SCOs Soil Cleanup Objectives

SCG Standards, Criteria and Guidance

SMP Site Management Plan

SPDES State Pollutant Discharge Elimination System

SSDS Sub-Slab Depressurization System

SVOCs Semi-Volatile Organic Compounds

USCS Unified Soil Classification System

USGS United States Geological Survey

UST Underground Storage Tank

TAL Target Analyte List

TCL Target Compound List

TCO Temporary Certificate of Occupancy

VOCs Volatile Organic Compounds

D R A F T

REMEDIAL ENGINEERING, P.C. – v – 2842.0001Y.103R/RAP

CERTIFICATION

I, Glenn Netuschil, am a Professional Engineer licensed in the State of New York. I have primary direct

responsibility for implementation of the remedial action for the Inwood Charter School Site Number 17TMP0187M.

I, Nathan Epler, Ph.D. am a Qualified Environmental Professional as defined in §43-140. I have primary direct

responsibility for implementation of the remedial action for the Inwood Charter School Site Number 17TMP0187M.

I certify that this Remedial Action Plan (RAP) has a plan for handling, transport and disposal of soil, fill, fluids

and other materials removed from the property in accordance with applicable City, State and Federal laws and

regulations. Importation of all soil, fill and other material from off-Site will be in accordance with all applicable

City, State and Federal laws and requirements. This RAP has provisions to control nuisances during the remediation

and all invasive work, including dust and odor suppression.

Glenn Netuschil Name

074741 NYS PE License Number Signature

Date

Nathan Epler, Ph.D. QEP Name

QEP Signature

Date 

PE Stamp

D R A F T Hazardous Materials Remedial Action Plan

Inwood Charter School OER Project # 17TMP0187M

REMEDIAL ENGINEERING, P.C. – vi – 2842.0001Y.103R/RAP

EXECUTIVE SUMMARY

Inwood Academy for Leadership Charter School has established this plan to remediate a

17,000-square foot site located at 3896 10th Avenue in Manhattan, New York. A Phase II

Subsurface Investigation (Phase II) was performed to compile and evaluate data and information

necessary to develop this Remedial Action Plan (RAP). The remedial action described in this

document achieves the remedial objectives, complies with applicable environmental standards,

criteria and guidance and conforms with applicable laws and regulations.

Site Location and Current Usage

The property is located at 3896 10th Avenue, and occupies Tax Lot 16 of Tax Block 2223 in the

Borough of Manhattan, City of New York, and State of New York (Site) (Figure 1). The Site is

located on the west side of 10th Avenue, between Isham Street and Post Avenue, in the Inwood

Section of the Borough of Manhattan, City of New York, and State of New York.

At the time of the Site reconnaissance, the entire Site consisted of a single 2-story commercial

building. The building was utilized as a fee-based parking garage and an automobile electronics

repair shop.

Summary of Proposed Redevelopment Plan

The building is to be re-configured within the existing envelope to be a Charter High School.

Summary of the Remedy

The proposed remedial action achieves all of the remedial action goals established for the

project. The proposed remedial action is effective in both the short-term and long-term and

reduces mobility, toxicity and volume of contaminants and uses standard methods that are well

established in the industry. The proposed remedial action will consist of:

1. Removal of underground storage tanks (if encountered) and closure of petroleum spills in compliance with applicable local, State and Federal laws and regulations.

D R A F T Hazardous Materials Remedial Action Plan

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2. Construction and maintenance of an engineered composite cover consisting of the existing building floor slab, or a new slab, if determined to be necessary for the future use of the Site as a school to prevent human exposure to residual soil/fill remaining under the Site.

3. Installation and operation of an active sub-slab depressurization system.

4. Screening of excavated soil/fill during intrusive work for indications of contamination by visual means, odor, and monitoring with a PID.

5. Performance of all activities required for the remedial action, including permitting requirements, in compliance with applicable laws and regulations.

6. Submission of a Remedial Closure Report (RCR) that describes the remedial activities, certifies that the remedial requirements have been achieved, and describes all Engineering and Institutional Controls to be implemented at the Site, and lists any changes from this RAP.

D R A F T

REMEDIAL ENGINEERING, P.C. – 1 – 2842.0001Y.103R/RAP

REMEDIAL ACTION PLAN

1.0 SITE BACKGROUND

This Remedial Action Plan (RAP) and site-specific Construction Health and Safety Plan

(CHASP) have been developed for The Inwood Charter School project located at 3896

10th Avenue in the Inwood section of Manhattan, New York (the Site). This project has been

assigned project number 17TMP0187M by OER. This RAP describes the remediation and/or

mitigation activities to be implemented at the Site in coordination with the New York City Office

of Environmental Remediation (OER) for the purposes of satisfying the requirements of the

Hazardous Materials E-Designation Program and obtaining a Notice to Proceed. An

E-Designation for Hazardous Materials (E-number) was placed on the Site by the New York

City Department of City Planning (DCP) as part of the month/day/year, name of the rezoning

or variance action rezoning action (CEQR number number). The site-specific CHASP

(Appendix A) addresses site-specific hazards, identified contaminants of concern and safety

requirements associated with remediation and mitigation activities in accordance with ASTM

and OSHA guidelines.

1.1 Site Location and Current Usage

The Site is located 3896 10th Avenue in the Inwood section of Manhattan, New York and is

identified as Block number 2223 and Lot number 16 on the New York City Tax Map. Figure1 is

a Site location map. The Site is 17,000-square feet and is bounded by Isham Street to the

northeast, 10th Avenue to the southeast, mixed use residential and commercial properties to the

northwest, beyond which is Sherman Avenue, and commercial properties to the southwest,

beyond which is West 207th Street. Currently, the Site is used for a parking garage and an auto

electronics repair shop and contains a single two-story building.

1.2 Proposed Redevelopment Plan

The proposed use of the Site will consist of a Charter High School. Layout of the proposed

site development is presented in Figure 2. The current zoning designation is Commercial (C8).

D R A F T Hazardous Materials Remedial Action Plan

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The existing building envelop will be maintained. The building occupies the entire Site.

There will be no new construction.

1.3 Description of Surrounding Property

Surrounding Property Uses

North Mixed use commercial-residential buildings with street-level store fronts; BP filling station and Sherman Avenue further north.

South Post Avenue / 10th Avenue; Metropolitan Transportation Authority (MTA) 207th Street Train Yard Facility further south.

East Isham Street / 10th Avenue; Metropolitan Transportation Authority (MTA) 207th Street Train Yard Facility further east.

West Multi-story mixed use commercial-residential buildings with street-level store fronts; West 207th Street further west.

Figure 3 shows the surrounding land use.

1.4 Environmental Investigation Reports

The following environmental reports were developed for the Site:

Phase 1 Environmental Site Assessment, 3896 10th Avenue, New York, New York,

December 2016, prepared by Roux Associates, Inc.

Remedial Investigation Report, 3896 10th Avenue, New York, New York, December 2016,

prepared by Roux Associates, Inc.

Roux Associates performed the following scope of work during the investigation of the Site:

1. Conducted a Site inspection to identify AOCs and physical obstructions (i.e. structures, buildings, etc.);

2. Installed and sampled three temporary sub-slab soil vapor probes on October 31, 2016;

D R A F T Hazardous Materials Remedial Action Plan

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3. Installed six soil borings, and collected twelve soil samples for analysis on November 21, 2016; and

4. Installed and sampled five temporary soil vapor probes between November 21 and November 22, 2016.

Roux Associates provided a brief summary of the soil vapor sampling analytical results to

OER. In an email dated December 8, 2016, OER requested three additional soil vapor samples

to be collected to refine the delineation of the nature and extent of an elevated detection of

tetrachloroethene (PCE) in soil vapor sample SV-2 (Figure 4), including the re-sampling of soil

vapor sample location SV-2.

On December 14, 2016, Roux Associates re-mobilized to the Site to collected the additional

soil vapor samples, the re-sample of SV-2, and additional soil samples associated with the new

soil vapor samples. Since SV-2 was a temporary soil vapor sampling point, a new sampling

point was installed in the auto-repair shop within 5 feet of SV-2. Roux Associates performed the

following scope of work during the re-mobilization:

1. Installed four soil borings and collected 4 soil samples for analysis; and

2. Installed and sampled four temporary soil vapor probes.

Roux Associates, Inc. provided a brief summary of the soil and soil vapor sampling

analytical results to OER. During a February 3, 2017 conference call, OER requested two

additional soil vapor samples be collected to determine whether or not off-site soil vapor

migration was occurring.

On February 14, 2017, Roux Associates re-mobilized to the Site to collect the additional soil

vapor samples.

1.5 Geophysical Investigation

On November 22, 2016, NAEVA Geophysics conducted a geophysical investigation at the

Site. The geophysical investigation, consisting of electromagnetic (EM) and ground penetrating

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radar (GPR), was performed to evaluate portions of the property for the potential presence of

underground storage tanks (USTs) or other subsurface structures associated with the building.

The area of the investigation was the indoor offices of the parking garage, plus an approximate

10-foot radius around the offices (including the sidewalk along 10th Avenue). The geophysical

survey results did not provide any conclusive evidence for a UST in the areas investigated.

However, an unknown GPR anomaly located on the west/southwest side of the offices was large

enough to potentially represent one or more USTs, and it is located in the area where an assumed

suspected vent line terminates. The geophysical report is provided in Appendix X of the RIR.

Digital (PDF) copies of the above referenced environmental work plans and reports are

included as Appendix B.

1.6 Summary of Regulatory Correspondence

There were no regulatory correspondence related to the Site:

1.7 Findings of Environmental Investigation

1. Elevation of the property above mean sea level is approximately 16 feet.

2. Groundwater was not encountered in unconsolidated material (fill) beneath the Site building.

3. Depth to bedrock is ranged from 5 to 7 feet at the Site.

4. Two distinct geologic strata were encountered at the Site from land surface to a maximum depth of 8 feet. These strata include from land surface downward:

a. Overburden material consisting of sand and gravel with traces of silt and weathered bedrock was present throughout the Site with a thickness that ranged from 0.5 to 8 feet.

b. Weathered bedrock was encountered between the overburden and more competent bedrock. The only boring that did not display this trend in lithology was RSB-6.

c. Bedrock was encountered throughout the site at depths ranging from 6 to 8 feet below the top of the building slab.

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5. Sixteen soil samples and one duplicate sample were collected from 10 borings during the RI at the Site. There were no detections of volatile organic compounds (VOCs), semi-volatile organic compounds (SVOCs), metals, polychlorinated biphenyls (PCBs), or pesticides in soil at concentrations above the NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup Objectives. Soil sample analytical results are presented in Tables 1 through 5.

6. The summary of detections of VOCs in soil vapor below was focused on petroleum-related and chlorinated VOCs that are typically indicative of sub-surface impacts to soil and groundwater. Soil vapor analytical results are presented in Table 6, and on Figure 4.

Analyte Minimum

Concentration Maximum

Concentration

Number of

Locations with

Detections

Maximum Concentration in Indoor Air

Maximum Concentration

in Ambient (outdoor) Air

1,1,1-Trichloroethane 1.82 11 6 ND ND

Tetrachloroethene 0.231 2280 16 0.380 0.183

Cis-1,2-Dichloroethylene

4.68 11.3 2 ND ND

1,2,4-Trimethylbenzene

0.993 47.1 9 34.4 2.38

1,3,5-Trimethylbenzene

2.22 8.46 5 9.68 ND

Benzene 0.891 53.0 9 53.0 3.32

Ethylbenzene 1.5 26 8 25.6 2.1

Xylenes (Total) 7.6 144.1 8 118.8 9.48

Toluene 0.829 190 15 739 16.9

1,4-Dichlorobenzene 1.97 -- 1 ND ND

Notes: All concentrations in micrograms per cubic meter ND – Not Detected

A review of the above summary indicates that petroleum-related VOCs were detected at concentrations in sub-slab and soil vapor samples at levels similar to indoor air. This is to be expected based on the current use of the building as an active parking garage.

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Of the chlorinated VOCs detected, both trichloroethene (TCE) and tetrachloroethene (PCE) were detected at concentrations in soil vapor that require monitoring1. PCE was detected at three locations (SV-2, SV-6 and SV-9) at concentrations that require mitigation (1,260 to 2,280 micrograms per cubic meter).

There was no evidence that offsite migration of VOCs in soil vapor was occurring toward adjacent buildings and properties.

For environmental investigation data, consult reports listed in Section 1.4. Based on an

evaluation of the environmental data and information, disposal of significant amounts of

hazardous waste is not expected at this site.

1 According to the Final NYSDOH CEH BEEI Soil Vapor Intrusion Guidance (October 2006)

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2.0 DESCRIPTION OF REMEDIATION

2.1 Objectives

The Site remediation and mitigation objectives are:

Soil

Prevent direct contact with contaminated soil.

Prevent exposure to contaminants volatilizing from contaminated soil.

Prevent migration of contaminants that would result in groundwater or surface water contamination.

Soil Vapor

Prevent exposure to contaminants in soil vapor.

Prevent migration of soil vapor into dwelling and other occupied structures.

Remedial and mitigation measures described herein will be performed in accordance with

applicable laws and regulations, and the site-specific CHASP. This remedy is protective of

public health and/or the environment for the intended use.

2.2 Summary of Remedial Action

The proposed plan achieves all of the remedial action goals established for the project.

The proposed remedial action is effective in both the short-term and long-term and reduces

mobility, toxicity and volume of contaminants and uses standard methods that are well

established in the industry.

1. Removal of underground storage tanks (if encountered) and closure of petroleum spills in compliance with applicable local, State and Federal laws and regulations.

2. Construction and maintenance of an engineered composite cover consisting of the existing building floor slab, or a new slab, if determined to be necessary for the future use of the Site as a school to prevent human exposure to residual soil/fill remaining under the Site.

D R A F T Hazardous Materials Remedial Action Plan

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3. Installation and operation of an active sub-slab depressurization system.

4. Screening of excavated soil/fill during intrusive work for indications of contamination by visual means, odor, and monitoring with a PID.

5. Performance of all activities required for the remedial action, including permitting requirements, in compliance with applicable laws and regulations.

6. Submission of a Remedial Closure Report (RCR) that describes the remedial activities, certifies that the remedial requirements have been achieved, and describes all Engineering and Institutional Controls to be implemented at the Site, and lists any changes from this RAP.

2.3 Soil Cleanup Objectives and Soil/Fill Management

No soil was encountered beneath the Site that contained constituents at concentrations

above unrestricted residential Soil Cleanup Objectives (SCOs). Therefore, no impacted soil

management will be necessary for any small excavation activities (e.g., excavation of elevator

pits) for this project.

In the unlikely event that discrete contaminant sources (such as hotspots) are identified

during the remedial action, they will be horizontally and vertically identified by GPS or

surveyed. This information will be provided in the RCR.

Soil cleanup objectives (SCOs) for soil at BCP sites are the numerical soil cleanup objectives

presented in 6NYCRR Sub-part 375-6.

Based upon the evaluation of the current soil data discussed in the RI and the proposed future

use of the Site, the SCOs for soil are the NYSDEC Subpart 375-6 Unrestricted Use SCOs.

2.4 Engineering Controls

Engineering Controls will be employed in the remedial action to address residual

contamination remaining at the site. The Site will have two primary Engineering Control (EC)

Systems. These are:

D R A F T Hazardous Materials Remedial Action Plan

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composite cover system consisting of asphalt covered roads, concrete covered sidewalks, and concrete building slabs; and

active sub-slab depressurization system.

A conceptual layout and details of the proposed SSDS is provided on Figure 5. Details

regarding the final SSDS construction and layout will be provided in a separate design report

once the interior configuration of the proposed Charter School is finalized.

Composite Cover System

Exposure to residual soil/fill will be prevented by an engineered, composite cover system to

be built on the Site. This composite cover system is comprised of:

the existing concrete building slab2.

Figure 5 shows the typical cross-section for the composite cover system to be used on this

Site.

The composite cover system is a permanent engineering control for the Site.

2 Development plans indicate that a new building slab may have to be installed. In that event, a vapor barrier may be included as an engineering control.

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3.0 REMEDIAL ACTION MANAGEMENT

3.1 Project Organization and Oversight

The Professional Engineer (PE) and Qualified Environmental Professionals (QEP) for this

project are Nathan Epler, Ph.D. and Glenn Netuschil, P.E.

3.2 Site Security

Site access will be controlled by restricting access through the existing entrances to the

building using traffic cones, and/or security personnel.

3.3 Work Hours

The hours for operation of remedial construction will be from 7:00 AM to 6 PM on

weekdays. These hours conform to the New York City Department of Buildings construction

code requirements.

3.4 Construction Health and Safety Plan

The site-specific Construction Health and Safety Plan (CHASP) is included in Appendix A.

The Site Safety Coordinator will be Joseph Gavin. Remedial work performed under this RAP

will be in full compliance with applicable health and safety laws and regulations, including Site

and OSHA worker safety requirements and HAZWOPER requirements. Confined space entry, if

any, will comply with OSHA requirements and industry standards and will address potential

risks. The parties performing the remedial construction work will ensure that performance of

work is in compliance with the CHASP and applicable laws and regulations. The CHASP

pertains to remedial and invasive work performed at the Site until the issuance of the Notice of

Satisfaction.

All field personnel involved in remedial activities will participate in training required under

29 CFR 1910.120, including 40-hour hazardous waste operator training and annual 8-hour

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refresher training. Site Safety Officer will be responsible for maintaining workers training

records.

Personnel entering any exclusion zone will be trained in the provisions of the CHASP and

be required to sign an CHASP acknowledgment. Site-specific training will be provided to field

personnel. Additional safety training may be added depending on the tasks performed.

Emergency telephone numbers will be posted at the site location before any remedial work

begins. A safety meeting will be conducted before each shift begins. Topics to be discussed

include task hazards and protective measures (physical, chemical, environmental); emergency

procedures; PPE levels and other relevant safety topics. Meetings will be documented in a log

book or specific form.

An emergency contact sheet with names and phone numbers is included in the CHASP.

That document will define the specific project contacts for use in case of emergency.

3.5 Community Air Monitoring Plan

No impacted soil was encountered during the Remedial Investigation. All intrusive work

(e.g., installation of the SSDS) will occur within the building. Therefore, real-time air

monitoring for volatile organic compounds (VOCs) and particulate levels at the perimeter of the

exclusion zone or work area will not be necessary.

3.6 Agency Approvals

All permits or government approvals required for remediation and construction will be

obtained prior to the start of remediation and construction. Acceptance of this RAP by OER

does not constitute satisfaction of these requirements and will not be a substitute for any required

permit.

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3.7 Site Preparation

Pre-Construction Meeting

OER will be invited to attend the pre-construction meeting at the Site with all parties

involved in the remedial process prior to the start of remedial construction activities.

Mobilization

Mobilization will be conducted as necessary for each phase of work at the Site.

Mobilization includes field personnel orientation, equipment mobilization (including securing all

sampling equipment needed for the field investigation), marking/staking sampling locations and

utility mark-outs. Each field team member will attend an orientation meeting to become familiar

with the general operation of the Site, health and safety requirements, and field procedures.

Utility Marker Layouts, Easement Layouts

The presence of utilities and easements on the Site will be fully investigated prior to the

performance of invasive work such as excavation or drilling under this plan by using, at a

minimum, the One-Call System (811). Underground utilities may pose an electrocution,

explosion, or other hazard during excavation or drilling activities. All invasive activities will be

performed incompliance with applicable laws and regulations to assure safety. Utility companies

and other responsible authorities will be contacted to locate and mark the locations, and a copy

of the Markout Ticket will be retained by the contractor prior to the start of drilling, excavation

or other invasive subsurface operations. Overhead utilities may also be present within the

anticipated work zones. Electrical hazards associated with drilling in the vicinity of overhead

utilities will be prevented by maintaining a safe distance between overhead power lines and drill

rig masts.

Proper safety and protective measures pertaining to utilities and easements, and compliance

with all laws and regulations will be employed during invasive and other work contemplated

under this RAP. The integrity and safety of on-Site and off-Site structures will be maintained

during all invasive, excavation or other remedial activity performed under the RAP.

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REMEDIAL ENGINEERING, P.C. – 13 – 2842.0001Y.103R/RAP

Dewatering

There will be no dewatering performed during the remedial action.

Equipment and Material Staging

There will no material staging during the remedial action.

3.8 Traffic Control

Drivers of trucks leaving the Site with soil/fill will be instructed to proceed without stopping

in the vicinity of the site to prevent neighborhood impacts.

3.9 Demobilization

Demobilization will include:

As necessary, restoration of temporary access areas and areas that may have been disturbed to accommodate support areas (e.g., staging areas, decontamination areas, storage areas, temporary water management areas, and access area); and

General refuse disposal.

All investigation and remediation derived waste will be appropriately disposed.

3.10 Reporting and Record Keeping

Daily Reports

Daily reports providing a general summary of activities for each day of active remedial work

will be emailed to the OER Project Manager by the end of the following day. Those reports will

include:

Project number and statement of the activities and an update of progress made and locations of work performed;

A summary of all citizen complaints, with relevant details (basis of complaint; actions taken; etc.); and

Photograph of notable Site conditions and activities.

D R A F T Hazardous Materials Remedial Action Plan

Inwood Charter School OER Project # 17TMP0187M

REMEDIAL ENGINEERING, P.C. – 14 – 2842.0001Y.103R/RAP

The frequency of the reporting period may be revised in consultation with OER project

manager based on planned project tasks. Daily email reports are not intended to be the primary

mode of communication for notification to OER of emergencies (accidents, spills), requests for

changes to the RAP or other sensitive or time critical information. However, such information

will be included in the daily reports. Emergency conditions and changes to the RAP will be

communicated directly to the OER project manager by personal communication. Daily reports

will be included as an Appendix in the RCR.

Record Keeping and Photo-Documentation

Job-site record keeping for all remedial work will be performed. These records will be

maintained on-Site during the project and will be available for inspection by OER staff.

Representative photographs will be taken of the Site prior to any remedial activities and during

major remedial activities to illustrate remedial program elements and contaminant source areas.

Photographs will be submitted at the completion of the project in the RCR in digital format

(i.e. jpeg files).

3.11 Complaint Management

All complaints from citizens will be promptly reported to OER. Complaints will be

addressed and outcomes will also be reported to OER in daily reports. Notices to OER will

include the nature of the complaint, the party providing the complaint, and the actions taken to

resolve any problems.

3.12 Deviations from the Remedial Action Plan

All changes to the RAP will be reported to the OER Project Manager and will be

documented in daily reports and reported in the RCR. The process to be followed if there are

any deviations from the RAP will include a request for approval for the change from OER noting

the following:

Reasons for deviating from the approved RAP;

Effect of the deviations on overall remedy; and

D R A F T Hazardous Materials Remedial Action Plan

Inwood Charter School OER Project # 17TMP0187M

REMEDIAL ENGINEERING, P.C. – 15 – 2842.0001Y.103R/RAP

Determination that the remedial action with the deviation(s) is protective of public health and the environment.

D R A F T Hazardous Materials Remedial Action Plan

Inwood Charter School OER Project # 17TMP0187M

REMEDIAL ENGINEERING, P.C. – 16 – 2842.0001Y.103R/RAP

4.0 REMEDIAL CLOSURE REPORT

A Remedial Closure Report (RCR) will be submitted to OER following implementation of

the remedial action defined in this RAP. The RCR will document that the remedial work

required under this RAP has been completed and has been performed in compliance with this

plan. The RCR will include:

Information required by this RAP.

As-built drawings for all constructed remedial elements, required certifications, manifests and other written and photographic documentation of remedial work performed under this remedy.

Site Management Plan.

Description of any changes in the remedial action from the elements provided in this RAP and associated design documents.

Tabular summary of all end point sampling results and all material characterization results, QA/QC results for end-point sampling, and other sampling and chemical analysis performed as part of the remedial action.

Test results or other evidence demonstrating that remedial systems are functioning properly.

Account of the source area locations and characteristics of all contaminated material removed from the Site including a map showing source areas.

Account of the disposal destination of all contaminated material removed from the Site. Documentation associated with disposal of all material will include transportation and disposal records, and letters approving receipt of the material.

Account of the origin and required chemical quality testing for material imported onto the Site.

Reports and supporting material will be submitted in digital form.

D R A F T Hazardous Materials Remedial Action Plan

Inwood Charter School OER Project # 17TMP0187M

REMEDIAL ENGINEERING, P.C. – 17 – 2842.0001Y.103R/RAP

Remedial Closure Report Certification

The following certification will appear in front of the Executive Summary of the Remedial

Closure Report. The certification will include the following statements:

I, ________________________, am currently a professional engineer licensed by the State of New York. I had

primary direct responsibility for implementation of the remedial program for the Site name Site Site number.

I, ________________________, am a qualified Environmental Professional. I had primary direct

responsibility for implementation remedial program for the Site name Site Site number. (Optional)

I certify that the OER-approved Remedial Action Plan dated month day year and Stipulations in a letter dated

month day, year; if any were implemented and that all requirements in those documents have been substantively

complied with. I certify that contaminated soil, fill, liquids or other material from the property were taken to

facilities licensed to accept this material in full compliance with applicable laws and regulations.

D R A F T Hazardous Materials Remedial Action Plan

Inwood Charter School OER Project # 17TMP0187M

REMEDIAL ENGINEERING, P.C. – 18 – 2842.0001Y.103R/RAP

5.0 SCHEDULE

The table below presents a tentative schedule for the proposed remedial action and

reporting. If the schedule for remediation and development activities changes, it will be updated

and submitted to OER. Currently, a one month remediation period is anticipated.

Schedule Milestone

Weeks from Remedial

Action Start Duration (weeks)

OER Approval of RAP 0 TBD

Mobilization 2 1

Remedial Construction 3 4

Demobilization 7 1

Submit Remedial Closure Report 12 4

Remedial Action Plan Inwood Academy for Leadership Charter School

108 Cooper Street, New York, New York 10034

REMEDIAL ENGINEERING, P.C. 2842.0001Y.103/CVRS

TABLES

1. Summary of Volatile Organic Compounds in Soil

2. Summary of Semi-Volatile Organic Compounds in Soil

3. Summary of Metals in Soil

4. Summary of Polychlorinated Biphenyls in Soil

5. Summary of Pesticides and Herbicides in Soil

6. Summary of Volatile Organic Compounds in Soil Vapor and Indoor and Ambient Air

Table 1. Summary of Volatile Organic Compounds in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

RSB-1 RSB-1 RSB-2 RSB-2 RSB-3 RSB-3 RSB-311/17/2016 11/21/2016 11/17/2016 11/21/2016 11/18/2016 11/18/2016 11/21/2016

0 - 2 4 - 6 0 - 2 7 - 8 0 - 2 0 - 2 4 - 6N N N N FD N N

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives Units1,1,1,2-Tetrachloroethane -- mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 U1,1,1-Trichloroethane 0.68 mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 U1,1,2,2-Tetrachloroethane -- mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 U1,1,2-Trichloroethane -- mg/kg 0.002 U 0.0019 U 0.0016 U 0.0016 U 0.002 U 0.002 U 0.0018 U1,1-Dichloroethane 0.27 mg/kg 0.002 U 0.0019 U 0.0016 U 0.0016 U 0.002 U 0.002 U 0.0018 U1,1-Dichloroethene 0.33 mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 U1,1-Dichloropropene -- mg/kg 0.0068 U 0.0063 U 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 U1,2,3-Trichlorobenzene -- mg/kg 0.0068 U 0.0063 U 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 U1,2,3-Trichloropropane -- mg/kg 0.014 U 0.012 U 0.011 U 0.011 U 0.013 U 0.013 U 0.012 U1,2,4,5-Tetramethylbenzene -- mg/kg 0.0054 U 0.005 U 0.0044 U 0.0043 U 0.0053 U 0.0053 U 0.0048 U1,2,4-Trichlorobenzene -- mg/kg 0.0068 U 0.0063 U 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 U1,2,4-Trimethylbenzene 3.6 mg/kg 0.0068 U 0.0063 U 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 U1,2-Dibromo-3-Chloropropane -- mg/kg 0.0068 U 0.0063 U 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 U1,2-Dibromoethane (Ethylene Dibromide) -- mg/kg 0.0054 U 0.005 U 0.0044 U 0.0043 U 0.0053 U 0.0053 U 0.0048 U1,2-Dichlorobenzene 1.1 mg/kg 0.0068 U 0.0063 U 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 U1,2-Dichloroethane 0.02 mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 U1,2-Dichloropropane -- mg/kg 0.0048 U 0.0044 U 0.0038 U 0.0037 U 0.0046 U 0.0046 U 0.0042 U1,3,5-Trimethylbenzene (Mesitylene) 8.4 mg/kg 0.0068 U 0.0063 U 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 U1,3-Dichlorobenzene 2.4 mg/kg 0.0068 U 0.0063 U 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 U1,3-Dichloropropane -- mg/kg 0.0068 U 0.0063 U 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 U1,4-Dichlorobenzene 1.8 mg/kg 0.0068 U 0.0063 U 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 U1,4-Diethyl Benzene -- mg/kg 0.0054 U 0.005 U 0.0044 U 0.0043 U 0.0053 U 0.0053 U 0.0048 U1,4-Dioxane (P-Dioxane) 0.1 mg/kg 0.14 U 0.12 U 0.11 U 0.11 U 0.13 U 0.13 U 0.12 U2,2-Dichloropropane -- mg/kg 0.0068 U 0.0063 U 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 U2-Chlorotoluene -- mg/kg 0.0068 U 0.0063 U 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 U2-Hexanone -- mg/kg 0.014 U 0.012 U 0.011 U 0.011 U 0.013 U 0.013 U 0.012 U4-Chlorotoluene -- mg/kg 0.0068 U 0.0063 U 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 U4-Ethyltoluene -- mg/kg 0.0054 U 0.005 U 0.0044 U 0.0043 U 0.0053 U 0.0053 U 0.0048 U

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

ROUX ASSOCIATES, INC. Page 1 of 9 2842.0001Y.103/WKB

Table 1. Summary of Volatile Organic Compounds in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

RSB-1 RSB-1 RSB-2 RSB-2 RSB-3 RSB-3 RSB-311/17/2016 11/21/2016 11/17/2016 11/21/2016 11/18/2016 11/18/2016 11/21/2016

0 - 2 4 - 6 0 - 2 7 - 8 0 - 2 0 - 2 4 - 6N N N N FD N N

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives Units

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

Acetone 0.05 mg/kg 0.014 U 0.012 0.011 U 0.011 U 0.013 U 0.013 U 0.012 UAcrylonitrile -- mg/kg 0.014 U 0.012 U 0.011 U 0.011 U 0.013 U 0.013 U 0.012 UBenzene 0.06 mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 UBromobenzene -- mg/kg 0.0068 U 0.0063 U 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 UBromochloromethane -- mg/kg 0.0068 U 0.0063 U 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 UBromodichloromethane -- mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 UBromoform -- mg/kg 0.0054 U 0.005 U 0.0044 U 0.0043 U 0.0053 U 0.0053 U 0.0048 UBromomethane -- mg/kg 0.0027 U 0.0025 U 0.0022 U 0.0021 U 0.0026 U 0.0026 U 0.0024 UCarbon Disulfide -- mg/kg 0.014 U 0.012 U 0.011 U 0.011 U 0.013 U 0.013 U 0.012 UCarbon Tetrachloride 0.76 mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 UChlorobenzene 1.1 mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 UChloroethane -- mg/kg 0.0027 U 0.0025 U 0.0022 U 0.0021 U 0.0026 U 0.0026 U 0.0024 UChloroform 0.37 mg/kg 0.002 U 0.0019 U 0.0016 U 0.0016 U 0.002 U 0.002 U 0.0018 UChloromethane -- mg/kg 0.0068 U 0.0063 U 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 UCis-1,2-Dichloroethylene 0.25 mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 UCis-1,3-Dichloropropene -- mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 UCymene -- mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 UDibromochloromethane -- mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 UDibromomethane -- mg/kg 0.014 U 0.012 U 0.011 U 0.011 U 0.013 U 0.013 U 0.012 UDichlorodifluoromethane -- mg/kg 0.014 U 0.012 U 0.011 U 0.011 U 0.013 U 0.013 U 0.012 UDichloroethylenes -- mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 UDiethyl Ether (Ethyl Ether) -- mg/kg 0.0068 U 0.0063 U 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 UEthylbenzene 1 mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 UHexachlorobutadiene -- mg/kg 0.0068 U 0.0063 U 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 UIsopropylbenzene (Cumene) -- mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 Um,p-Xylene -- mg/kg 0.0027 U 0.0025 U 0.0022 U 0.0021 U 0.0026 U 0.0026 U 0.0024 UMethyl Ethyl Ketone (2-Butanone) 0.12 mg/kg 0.014 U 0.012 U 0.011 U 0.011 U 0.013 U 0.013 U 0.012 UMethyl Isobutyl Ketone (4-Methyl-2-Pentanone) -- mg/kg 0.014 U 0.012 U 0.011 U 0.011 U 0.013 U 0.013 U 0.012 U

ROUX ASSOCIATES, INC. Page 2 of 9 2842.0001Y.103/WKB

Table 1. Summary of Volatile Organic Compounds in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

RSB-1 RSB-1 RSB-2 RSB-2 RSB-3 RSB-3 RSB-311/17/2016 11/21/2016 11/17/2016 11/21/2016 11/18/2016 11/18/2016 11/21/2016

0 - 2 4 - 6 0 - 2 7 - 8 0 - 2 0 - 2 4 - 6N N N N FD N N

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives Units

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

Methylene Chloride 0.05 mg/kg 0.0017 J 0.0016 J 0.0013 J 0.0013 J 0.0016 J 0.0016 J 0.0015 JNaphthalene 12 mg/kg 0.0068 U 0.0012 J 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 UN-Butylbenzene 12 mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 UN-Propylbenzene 3.9 mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 UO-Xylene (1,2-Dimethylbenzene) -- mg/kg 0.0027 U 0.0025 U 0.0022 U 0.0021 U 0.0026 U 0.0026 U 0.0024 USec-Butylbenzene 11 mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 UStyrene -- mg/kg 0.0027 U 0.0025 U 0.0022 U 0.0021 U 0.0026 U 0.0026 U 0.0024 UT-Butylbenzene 5.9 mg/kg 0.0068 U 0.0063 U 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 UTert-Butyl Methyl Ether 0.93 mg/kg 0.0027 U 0.0025 U 0.0022 U 0.0021 U 0.0026 U 0.0026 U 0.0024 UTetrachloroethylene (PCE) 1.3 mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 UToluene 0.7 mg/kg 0.002 U 0.0019 U 0.0016 U 0.0016 U 0.002 U 0.002 U 0.0018 UTotal, 1,3-Dichloropropene (Cis And Trans) -- mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 UTrans-1,2-Dichloroethene 0.19 mg/kg 0.002 U 0.0019 U 0.0016 U 0.0016 U 0.002 U 0.002 U 0.0018 UTrans-1,3-Dichloropropene -- mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 UTrans-1,4-Dichloro-2-Butene -- mg/kg 0.0068 U 0.0063 U 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 UTrichloroethylene (TCE) 0.47 mg/kg 0.0014 U 0.0012 U 0.0011 U 0.0011 U 0.0013 U 0.0013 U 0.0012 UTrichlorofluoromethane -- mg/kg 0.0068 U 0.0063 U 0.0055 U 0.0053 U 0.0066 U 0.0066 U 0.006 UVinyl Acetate -- mg/kg 0.014 U 0.012 U 0.011 U 0.011 U 0.013 U 0.013 U 0.012 UVinyl Chloride 0.02 mg/kg 0.0027 U 0.0025 U 0.0022 U 0.0021 U 0.0026 U 0.0026 U 0.0024 UXylenes 0.26 mg/kg 0.0027 U 0.0025 U 0.0022 U 0.0021 U 0.0026 U 0.0026 U 0.0024 U

J - Estimated valueU - Indicates that the compound was analyzed for but not detectedFD - Duplicate samplemg/kg - Milligrams per kilogramft bls - Feet below land surfaceNYSDEC - New York State Department of Environmental Conservation -- No Soil Cleanup Objectives available

ROUX ASSOCIATES, INC. Page 3 of 9 2842.0001Y.103/WKB

Table 1. Summary of Volatile Organic Compounds in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives Units1,1,1,2-Tetrachloroethane -- mg/kg1,1,1-Trichloroethane 0.68 mg/kg1,1,2,2-Tetrachloroethane -- mg/kg1,1,2-Trichloroethane -- mg/kg1,1-Dichloroethane 0.27 mg/kg1,1-Dichloroethene 0.33 mg/kg1,1-Dichloropropene -- mg/kg1,2,3-Trichlorobenzene -- mg/kg1,2,3-Trichloropropane -- mg/kg1,2,4,5-Tetramethylbenzene -- mg/kg1,2,4-Trichlorobenzene -- mg/kg1,2,4-Trimethylbenzene 3.6 mg/kg1,2-Dibromo-3-Chloropropane -- mg/kg1,2-Dibromoethane (Ethylene Dibromide) -- mg/kg1,2-Dichlorobenzene 1.1 mg/kg1,2-Dichloroethane 0.02 mg/kg1,2-Dichloropropane -- mg/kg1,3,5-Trimethylbenzene (Mesitylene) 8.4 mg/kg1,3-Dichlorobenzene 2.4 mg/kg1,3-Dichloropropane -- mg/kg1,4-Dichlorobenzene 1.8 mg/kg1,4-Diethyl Benzene -- mg/kg1,4-Dioxane (P-Dioxane) 0.1 mg/kg2,2-Dichloropropane -- mg/kg2-Chlorotoluene -- mg/kg2-Hexanone -- mg/kg4-Chlorotoluene -- mg/kg4-Ethyltoluene -- mg/kg

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

RSB-4 RSB-4 RSB-5 RSB-5 RSB-6 RSB-6 RSB-711/17/2016 11/21/2016 11/17/2016 11/21/2016 11/18/2016 11/21/2016 12/14/2016

0 - 2 6 - 7 0 - 2 4 - 6 0 - 2 4 - 6 2 - 4N N N N N N N

0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0016 U 0.0012 U 0.0011 U0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0016 U 0.0012 U 0.0011 U0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0016 U 0.0012 U 0.0011 U0.0025 U 0.0015 U 0.0021 U 0.0021 U 0.0024 U 0.0018 U 0.0016 U0.0025 U 0.0015 U 0.0021 U 0.0021 U 0.0024 U 0.0018 U 0.0016 U0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0016 U 0.0012 U 0.0011 U0.0082 U 0.0051 U 0.007 U 0.0069 U 0.008 U 0.0062 U 0.0054 U0.0082 U 0.0051 U 0.007 U 0.0069 U 0.008 U 0.0062 U 0.0054 U0.016 U 0.01 U 0.014 U 0.014 U 0.016 U 0.012 U 0.011 U

0.0066 U 0.004 U 0.0056 U 0.00027 J 0.0064 U 0.0049 U 0.0043 U0.0082 U 0.0051 U 0.007 U 0.0069 U 0.008 U 0.0062 U 0.0054 U0.0082 U 0.0051 U 0.007 U 0.00067 J 0.008 U 0.0062 U 0.0054 U0.0082 U 0.0051 U 0.007 U 0.0069 U 0.008 U 0.0062 U 0.0054 U0.0066 U 0.004 U 0.0056 U 0.0055 U 0.0064 U 0.0049 U 0.0043 U0.0082 U 0.0051 U 0.007 U 0.0069 U 0.008 U 0.0062 U 0.0054 U0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0016 U 0.0012 U 0.0011 U0.0058 U 0.0036 U 0.0049 U 0.0048 U 0.0056 U 0.0043 U 0.0038 U0.0082 U 0.0051 U 0.007 U 0.00037 J 0.008 U 0.0062 U 0.0054 U0.0082 U 0.0051 U 0.007 U 0.0069 U 0.008 U 0.0062 U 0.0054 U0.0082 U 0.0051 U 0.007 U 0.0069 U 0.008 U 0.0062 U 0.0054 U0.0082 U 0.0051 U 0.007 U 0.0069 U 0.008 U 0.0062 U 0.00018 J0.0066 U 0.004 U 0.0056 U 0.00059 J 0.0064 U 0.0049 U 0.0043 U

0.16 U 0.1 U 0.14 U 0.14 U 0.16 U 0.12 U 0.11 U0.0082 U 0.0051 U 0.007 U 0.0069 U 0.008 U 0.0062 U 0.0054 U0.0082 U 0.0051 U 0.007 U 0.0069 U 0.008 U 0.0062 U 0.0054 U0.016 U 0.01 U 0.014 U 0.014 U 0.016 U 0.012 U 0.011 U

0.0082 U 0.0051 U 0.007 U 0.0069 U 0.008 U 0.0062 U 0.0054 U0.0066 U 0.004 U 0.0056 U 0.00033 J 0.0064 U 0.0049 U 0.0043 U

ROUX ASSOCIATES, INC. Page 4 of 9 2842.0001Y.103/WKB

Table 1. Summary of Volatile Organic Compounds in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives Units

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

Acetone 0.05 mg/kgAcrylonitrile -- mg/kgBenzene 0.06 mg/kgBromobenzene -- mg/kgBromochloromethane -- mg/kgBromodichloromethane -- mg/kgBromoform -- mg/kgBromomethane -- mg/kgCarbon Disulfide -- mg/kgCarbon Tetrachloride 0.76 mg/kgChlorobenzene 1.1 mg/kgChloroethane -- mg/kgChloroform 0.37 mg/kgChloromethane -- mg/kgCis-1,2-Dichloroethylene 0.25 mg/kgCis-1,3-Dichloropropene -- mg/kgCymene -- mg/kgDibromochloromethane -- mg/kgDibromomethane -- mg/kgDichlorodifluoromethane -- mg/kgDichloroethylenes -- mg/kgDiethyl Ether (Ethyl Ether) -- mg/kgEthylbenzene 1 mg/kgHexachlorobutadiene -- mg/kgIsopropylbenzene (Cumene) -- mg/kgm,p-Xylene -- mg/kgMethyl Ethyl Ketone (2-Butanone) 0.12 mg/kgMethyl Isobutyl Ketone (4-Methyl-2-Pentanone) -- mg/kg

RSB-4 RSB-4 RSB-5 RSB-5 RSB-6 RSB-6 RSB-711/17/2016 11/21/2016 11/17/2016 11/21/2016 11/18/2016 11/21/2016 12/14/2016

0 - 2 6 - 7 0 - 2 4 - 6 0 - 2 4 - 6 2 - 4N N N N N N N

0.016 U 0.01 U 0.014 U 0.014 0.016 U 0.034 0.020.016 U 0.01 U 0.014 U 0.014 U 0.016 U 0.012 U 0.011 U

0.0016 U 0.001 U 0.0014 U 0.00022 J 0.0016 U 0.0012 U 0.0011 U0.0082 U 0.0051 U 0.007 U 0.0069 U 0.008 U 0.0062 U 0.0054 U0.0082 U 0.0051 U 0.007 U 0.0069 U 0.008 U 0.0062 U 0.0054 U0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0016 U 0.0012 U 0.0011 U0.0066 U 0.004 U 0.0056 U 0.0055 U 0.0064 U 0.0049 U 0.0043 U0.0033 U 0.002 U 0.0028 U 0.0027 U 0.0032 U 0.0025 U 0.0022 U0.016 U 0.01 U 0.014 U 0.014 U 0.016 U 0.012 U 0.011 U

0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0016 U 0.0012 U 0.0011 U0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0016 U 0.0012 U 0.0011 U0.0033 U 0.002 U 0.0028 U 0.0027 U 0.0032 U 0.0025 U 0.0022 U0.0025 U 0.0015 U 0.0021 U 0.0021 U 0.0024 U 0.0018 U 0.0016 U0.0082 U 0.0051 U 0.007 U 0.0069 U 0.008 U 0.0062 U 0.0054 U0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0016 U 0.0012 U 0.0011 U0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0016 U 0.0012 U 0.0011 U0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0016 U 0.0012 U 0.0011 U0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0016 U 0.0012 U 0.0011 U0.016 U 0.01 U 0.014 U 0.014 U 0.016 U 0.012 U 0.011 U0.016 U 0.01 U 0.014 U 0.014 U 0.016 U 0.012 U 0.011 U

0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0016 U 0.0012 U 0.0011 U0.0082 U 0.0051 U 0.007 U 0.0069 U 0.008 U 0.0062 U 0.0054 U0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0016 U 0.0012 U 0.0011 U0.0082 U 0.0051 U 0.007 U 0.0069 U 0.008 U 0.0062 U 0.0054 U0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0016 U 0.0012 U 0.0011 U0.0033 U 0.002 U 0.0028 U 0.0027 U 0.0032 U 0.0025 U 0.0022 U0.016 U 0.01 U 0.014 U 0.014 U 0.016 U 0.0019 J 0.011 U0.016 U 0.01 U 0.014 U 0.014 U 0.016 U 0.012 U 0.011 U

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Table 1. Summary of Volatile Organic Compounds in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives Units

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

Methylene Chloride 0.05 mg/kgNaphthalene 12 mg/kgN-Butylbenzene 12 mg/kgN-Propylbenzene 3.9 mg/kgO-Xylene (1,2-Dimethylbenzene) -- mg/kgSec-Butylbenzene 11 mg/kgStyrene -- mg/kgT-Butylbenzene 5.9 mg/kgTert-Butyl Methyl Ether 0.93 mg/kgTetrachloroethylene (PCE) 1.3 mg/kgToluene 0.7 mg/kgTotal, 1,3-Dichloropropene (Cis And Trans) -- mg/kgTrans-1,2-Dichloroethene 0.19 mg/kgTrans-1,3-Dichloropropene -- mg/kgTrans-1,4-Dichloro-2-Butene -- mg/kgTrichloroethylene (TCE) 0.47 mg/kgTrichlorofluoromethane -- mg/kgVinyl Acetate -- mg/kgVinyl Chloride 0.02 mg/kgXylenes 0.26 mg/kg

J - Estimated valueU - Indicates that the compound was analyzed for but not detectedFD - Duplicate samplemg/kg - Milligrams per kilogramft bls - Feet below land surfaceNYSDEC - New York State Department of Environmental Conservation -- No Soil Cleanup Objectives available

RSB-4 RSB-4 RSB-5 RSB-5 RSB-6 RSB-6 RSB-711/17/2016 11/21/2016 11/17/2016 11/21/2016 11/18/2016 11/21/2016 12/14/2016

0 - 2 6 - 7 0 - 2 4 - 6 0 - 2 4 - 6 2 - 4N N N N N N N

0.002 J 0.0013 J 0.0017 J 0.0017 J 0.0019 J 0.0014 J 0.011 U0.0082 U 0.0051 U 0.007 U 0.0069 U 0.008 U 0.00058 J 0.0054 U0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0016 U 0.0012 U 0.0011 U0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0016 U 0.0012 U 0.0011 U0.0033 U 0.002 U 0.0028 U 0.0027 U 0.0032 U 0.0025 U 0.0022 U0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0016 U 0.0012 U 0.0011 U0.0033 U 0.002 U 0.0028 U 0.0027 U 0.0032 U 0.0025 U 0.0022 U0.0082 U 0.0051 U 0.007 U 0.0069 U 0.008 U 0.0062 U 0.0054 U0.0033 U 0.002 U 0.0028 U 0.0027 U 0.0032 U 0.0025 U 0.0022 U0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0045 0.0012 U 0.00110.0025 U 0.0015 U 0.0021 U 0.0003 J 0.0024 U 0.0018 U 0.0016 U0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0016 U 0.0012 U 0.0011 U0.0025 U 0.0015 U 0.0021 U 0.0021 U 0.0024 U 0.0018 U 0.0016 U0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0016 U 0.0012 U 0.0011 U0.0082 U 0.0051 U 0.007 U 0.0069 U 0.008 U 0.0062 U 0.0054 U0.0016 U 0.001 U 0.0014 U 0.0014 U 0.0016 U 0.0012 U 0.0011 U0.0082 U 0.0051 U 0.007 U 0.0069 U 0.008 U 0.0062 U 0.0054 U0.016 U 0.01 U 0.014 U 0.014 U 0.016 U 0.012 U 0.011 U

0.0033 U 0.002 U 0.0028 U 0.0027 U 0.0032 U 0.0025 U 0.0022 U0.0033 U 0.002 U 0.0028 U 0.0027 U 0.0032 U 0.0025 U 0.0022 U

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Table 1. Summary of Volatile Organic Compounds in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives Units1,1,1,2-Tetrachloroethane -- mg/kg1,1,1-Trichloroethane 0.68 mg/kg1,1,2,2-Tetrachloroethane -- mg/kg1,1,2-Trichloroethane -- mg/kg1,1-Dichloroethane 0.27 mg/kg1,1-Dichloroethene 0.33 mg/kg1,1-Dichloropropene -- mg/kg1,2,3-Trichlorobenzene -- mg/kg1,2,3-Trichloropropane -- mg/kg1,2,4,5-Tetramethylbenzene -- mg/kg1,2,4-Trichlorobenzene -- mg/kg1,2,4-Trimethylbenzene 3.6 mg/kg1,2-Dibromo-3-Chloropropane -- mg/kg1,2-Dibromoethane (Ethylene Dibromide) -- mg/kg1,2-Dichlorobenzene 1.1 mg/kg1,2-Dichloroethane 0.02 mg/kg1,2-Dichloropropane -- mg/kg1,3,5-Trimethylbenzene (Mesitylene) 8.4 mg/kg1,3-Dichlorobenzene 2.4 mg/kg1,3-Dichloropropane -- mg/kg1,4-Dichlorobenzene 1.8 mg/kg1,4-Diethyl Benzene -- mg/kg1,4-Dioxane (P-Dioxane) 0.1 mg/kg2,2-Dichloropropane -- mg/kg2-Chlorotoluene -- mg/kg2-Hexanone -- mg/kg4-Chlorotoluene -- mg/kg4-Ethyltoluene -- mg/kg

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

RSB-8 RSB-9 RSB-1012/14/2016 12/14/2016 12/14/2016

3.5 - 5.5 2 - 3 3.5 - 5.5N N N

0.0011 U 0.001 U 0.0011 U0.0011 U 0.001 U 0.0011 U0.0011 U 0.001 U 0.0011 U0.0016 U 0.0015 U 0.0016 U0.0016 U 0.0015 U 0.0016 U0.0011 U 0.001 U 0.0011 U0.0055 U 0.005 U 0.0053 U0.0055 U 0.005 U 0.0053 U0.011 U 0.01 U 0.011 U

0.0044 U 0.004 U 0.0043 U0.0055 U 0.005 U 0.0053 U0.0055 U 0.005 U 0.0053 U0.0055 U 0.005 U 0.0053 U0.0044 U 0.004 U 0.0043 U0.0055 U 0.005 U 0.0053 U0.0011 U 0.001 U 0.0011 U0.0039 U 0.0035 U 0.0037 U0.0055 U 0.005 U 0.0053 U0.0055 U 0.005 U 0.0053 U0.0055 U 0.005 U 0.0053 U0.00029 J 0.005 U 0.0053 U0.0044 U 0.004 U 0.0043 U

0.11 U 0.1 U 0.11 U0.0055 U 0.005 U 0.0053 U0.0055 U 0.005 U 0.0053 U0.011 U 0.01 U 0.011 U

0.0055 U 0.005 U 0.0053 U0.0044 U 0.004 U 0.0043 U

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Table 1. Summary of Volatile Organic Compounds in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives Units

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

Acetone 0.05 mg/kgAcrylonitrile -- mg/kgBenzene 0.06 mg/kgBromobenzene -- mg/kgBromochloromethane -- mg/kgBromodichloromethane -- mg/kgBromoform -- mg/kgBromomethane -- mg/kgCarbon Disulfide -- mg/kgCarbon Tetrachloride 0.76 mg/kgChlorobenzene 1.1 mg/kgChloroethane -- mg/kgChloroform 0.37 mg/kgChloromethane -- mg/kgCis-1,2-Dichloroethylene 0.25 mg/kgCis-1,3-Dichloropropene -- mg/kgCymene -- mg/kgDibromochloromethane -- mg/kgDibromomethane -- mg/kgDichlorodifluoromethane -- mg/kgDichloroethylenes -- mg/kgDiethyl Ether (Ethyl Ether) -- mg/kgEthylbenzene 1 mg/kgHexachlorobutadiene -- mg/kgIsopropylbenzene (Cumene) -- mg/kgm,p-Xylene -- mg/kgMethyl Ethyl Ketone (2-Butanone) 0.12 mg/kgMethyl Isobutyl Ketone (4-Methyl-2-Pentanone) -- mg/kg

RSB-8 RSB-9 RSB-1012/14/2016 12/14/2016 12/14/2016

3.5 - 5.5 2 - 3 3.5 - 5.5N N N

0.011 0.012 0.0150.011 U 0.01 U 0.011 U

0.0011 U 0.001 U 0.0011 U0.0055 U 0.005 U 0.0053 U0.0055 U 0.005 U 0.0053 U0.0011 U 0.001 U 0.0011 U0.0044 U 0.004 U 0.0043 U0.0022 U 0.002 U 0.0021 U0.011 U 0.01 U 0.011 U

0.0011 U 0.001 U 0.0011 U0.0011 U 0.001 U 0.0011 U0.0022 U 0.002 U 0.0021 U0.0016 U 0.0015 U 0.0016 U0.0055 U 0.005 U 0.0053 U0.0011 U 0.001 U 0.0011 U0.0011 U 0.001 U 0.0011 U0.0011 U 0.001 U 0.0011 U0.0011 U 0.001 U 0.0011 U0.011 U 0.01 U 0.011 U0.011 U 0.01 U 0.011 U

0.0011 U 0.001 U 0.0011 U0.0055 U 0.005 U 0.0053 U0.0011 U 0.001 U 0.0011 U0.0055 U 0.005 U 0.0053 U0.0011 U 0.001 U 0.0011 U0.0022 U 0.002 U 0.0021 U0.011 U 0.01 U 0.011 U0.011 U 0.01 U 0.011 U

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Table 1. Summary of Volatile Organic Compounds in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives Units

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

Methylene Chloride 0.05 mg/kgNaphthalene 12 mg/kgN-Butylbenzene 12 mg/kgN-Propylbenzene 3.9 mg/kgO-Xylene (1,2-Dimethylbenzene) -- mg/kgSec-Butylbenzene 11 mg/kgStyrene -- mg/kgT-Butylbenzene 5.9 mg/kgTert-Butyl Methyl Ether 0.93 mg/kgTetrachloroethylene (PCE) 1.3 mg/kgToluene 0.7 mg/kgTotal, 1,3-Dichloropropene (Cis And Trans) -- mg/kgTrans-1,2-Dichloroethene 0.19 mg/kgTrans-1,3-Dichloropropene -- mg/kgTrans-1,4-Dichloro-2-Butene -- mg/kgTrichloroethylene (TCE) 0.47 mg/kgTrichlorofluoromethane -- mg/kgVinyl Acetate -- mg/kgVinyl Chloride 0.02 mg/kgXylenes 0.26 mg/kg

J - Estimated valueU - Indicates that the compound was analyzed for but not detectedFD - Duplicate samplemg/kg - Milligrams per kilogramft bls - Feet below land surfaceNYSDEC - New York State Department of Environmental Conservation -- No Soil Cleanup Objectives available

RSB-8 RSB-9 RSB-1012/14/2016 12/14/2016 12/14/2016

3.5 - 5.5 2 - 3 3.5 - 5.5N N N

0.011 U 0.01 U 0.011 U0.0055 U 0.005 U 0.0053 U0.0011 U 0.001 U 0.0011 U0.0011 U 0.001 U 0.0011 U0.0022 U 0.002 U 0.0021 U0.0011 U 0.001 U 0.0011 U0.0022 U 0.002 U 0.0021 U0.0055 U 0.005 U 0.0053 U0.0022 U 0.002 U 0.0021 U0.0011 U 0.00023 J 0.00016 J0.0016 U 0.0015 U 0.0016 U0.0011 U 0.001 U 0.0011 U0.0016 U 0.0015 U 0.0016 U0.0011 U 0.001 U 0.0011 U0.0055 U 0.005 U 0.0053 U0.0011 U 0.001 U 0.0011 U0.0055 U 0.005 U 0.0053 U0.011 U 0.01 U 0.011 U

0.0022 U 0.002 U 0.0021 U0.0022 U 0.002 U 0.0021 U

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Table 2. Summary of Semivolatile Organic Compounds in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

RSB-1 RSB-1 RSB-2 RSB-2 RSB-3 RSB-3 RSB-311/17/2016 11/21/2016 11/17/2016 11/21/2016 11/18/2016 11/18/2016 11/21/2016

0 - 2 4 - 6 0 - 2 7 - 8 0 - 2 0 - 2 4 - 6N N N N FD N N

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives Units1,2,4,5-Tetrachlorobenzene -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 U1,2,4-Trichlorobenzene -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 U1,2-Dichlorobenzene 1.1 mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 U1,3-Dichlorobenzene 2.4 mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 U1,4-Dichlorobenzene 1.8 mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 U2,4,5-Trichlorophenol -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 U2,4,6-Trichlorophenol -- mg/kg 0.1 U 0.1 U 0.1 U 0.11 U 0.1 U 0.1 U 0.11 U2,4-Dichlorophenol -- mg/kg 0.15 U 0.15 U 0.15 U 0.16 U 0.16 U 0.15 U 0.16 U2,4-Dimethylphenol -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 U2,4-Dinitrophenol -- mg/kg 0.81 U 0.82 U 0.82 U 0.85 U 0.83 U 0.82 U 0.86 U2,4-Dinitrotoluene -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 U2,6-Dinitrotoluene -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 U2-Chloronaphthalene -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 U2-Chlorophenol -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 U2-Methylnaphthalene -- mg/kg 0.2 U 0.2 U 0.2 U 0.21 U 0.03 J 0.2 U 0.21 U2-Methylphenol (O-Cresol) 0.33 mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 U2-Nitroaniline -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 U2-Nitrophenol -- mg/kg 0.36 U 0.37 U 0.37 U 0.38 U 0.37 U 0.37 U 0.39 U3- And 4- Methylphenol (Total) 0.33 mg/kg 0.24 U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U 0.26 U3,3'-Dichlorobenzidine -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 U3-Nitroaniline -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 U4,6-Dinitro-2-Methylphenol -- mg/kg 0.44 U 0.44 U 0.44 U 0.46 U 0.45 U 0.44 U 0.46 U4-Bromophenyl Phenyl Ether -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 U4-Chloro-3-Methylphenol -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 U4-Chloroaniline -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 U4-Chlorophenyl Phenyl Ether -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 U4-Nitroaniline -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 U4-Nitrophenol -- mg/kg 0.24 U 0.24 U 0.24 U 0.25 U 0.24 U 0.24 U 0.25 U

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

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Table 2. Summary of Semivolatile Organic Compounds in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

RSB-1 RSB-1 RSB-2 RSB-2 RSB-3 RSB-3 RSB-311/17/2016 11/21/2016 11/17/2016 11/21/2016 11/18/2016 11/18/2016 11/21/2016

0 - 2 4 - 6 0 - 2 7 - 8 0 - 2 0 - 2 4 - 6N N N N FD N N

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives Units

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

Acenaphthene 20 mg/kg 0.14 U 0.14 U 0.14 U 0.14 U 0.14 U 0.14 U 0.14 UAcenaphthylene 100 mg/kg 0.14 U 0.14 U 0.14 U 0.14 U 0.14 U 0.14 U 0.14 UAcetophenone -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 UAnthracene 100 mg/kg 0.1 U 0.1 U 0.1 U 0.11 U 0.1 U 0.1 U 0.11 UBenzo(A)Anthracene 1 mg/kg 0.1 U 0.047 J 0.1 U 0.11 U 0.1 U 0.1 U 0.11 UBenzo(A)Pyrene 1 mg/kg 0.14 U 0.059 J 0.14 U 0.14 U 0.14 U 0.14 U 0.14 UBenzo(B)Fluoranthene 1 mg/kg 0.1 U 0.067 J 0.1 U 0.11 U 0.1 U 0.1 U 0.11 UBenzo(G,H,I)Perylene 100 mg/kg 0.14 U 0.039 J 0.14 U 0.14 U 0.14 U 0.14 U 0.14 UBenzo(K)Fluoranthene 0.8 mg/kg 0.1 U 0.1 U 0.1 U 0.11 U 0.1 U 0.1 U 0.11 UBenzoic Acid -- mg/kg 0.55 U 0.56 U 0.56 U 0.57 U 0.56 U 0.55 U 0.58 UBenzyl Alcohol -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 UBenzyl Butyl Phthalate -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 UBiphenyl (Diphenyl) -- mg/kg 0.38 U 0.39 U 0.39 U 0.4 U 0.39 U 0.39 U 0.41 UBis(2-Chloroethoxy) Methane -- mg/kg 0.18 U 0.18 U 0.18 U 0.19 U 0.19 U 0.18 U 0.19 UBis(2-Chloroethyl) Ether (2-Chloroethyl Ether) -- mg/kg 0.15 U 0.15 U 0.15 U 0.16 U 0.16 U 0.15 U 0.16 UBis(2-Chloroisopropyl) Ether -- mg/kg 0.2 U 0.2 U 0.2 U 0.21 U 0.21 U 0.2 U 0.21 UBis(2-Ethylhexyl) Phthalate -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 UCarbazole -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 UChrysene 1 mg/kg 0.1 U 0.044 J 0.1 U 0.11 U 0.1 U 0.1 U 0.11 UDibenz(A,H)Anthracene 0.33 mg/kg 0.1 U 0.1 U 0.1 U 0.11 U 0.1 U 0.1 U 0.11 UDibenzofuran 7 mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 UDiethyl Phthalate -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 UDimethyl Phthalate -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 UDi-N-Butyl Phthalate -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 UDi-N-Octylphthalate -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 UFluoranthene 100 mg/kg 0.022 J 0.1 0.024 J 0.11 U 0.1 U 0.1 U 0.11 UFluorene 30 mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 UHexachlorobenzene 0.33 mg/kg 0.1 U 0.1 U 0.1 U 0.11 U 0.1 U 0.1 U 0.11 U

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Table 2. Summary of Semivolatile Organic Compounds in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

RSB-1 RSB-1 RSB-2 RSB-2 RSB-3 RSB-3 RSB-311/17/2016 11/21/2016 11/17/2016 11/21/2016 11/18/2016 11/18/2016 11/21/2016

0 - 2 4 - 6 0 - 2 7 - 8 0 - 2 0 - 2 4 - 6N N N N FD N N

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives Units

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

Hexachlorobutadiene -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 UHexachlorocyclopentadiene -- mg/kg 0.48 U 0.49 U 0.49 U 0.51 U 0.49 U 0.49 U 0.51 UHexachloroethane -- mg/kg 0.14 U 0.14 U 0.14 U 0.14 U 0.14 U 0.14 U 0.14 UIndeno(1,2,3-C,D)Pyrene 0.5 mg/kg 0.052 J 0.04 J 0.055 J 0.14 U 0.14 U 0.14 U 0.14 UIsophorone -- mg/kg 0.15 U 0.15 U 0.15 U 0.16 U 0.16 U 0.15 U 0.16 UNaphthalene 12 mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.03 J 0.17 U 0.18 UNitrobenzene -- mg/kg 0.15 U 0.15 U 0.15 U 0.16 U 0.16 U 0.15 U 0.16 UN-Nitrosodi-N-Propylamine -- mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 UN-Nitrosodiphenylamine -- mg/kg 0.14 U 0.14 U 0.14 U 0.14 U 0.14 U 0.14 U 0.14 UPentachlorophenol 0.8 mg/kg 0.14 U 0.14 U 0.14 U 0.14 U 0.14 U 0.14 U 0.14 UPhenanthrene 100 mg/kg 0.1 U 0.078 J 0.1 U 0.11 U 0.1 U 0.1 U 0.11 UPhenol 0.33 mg/kg 0.17 U 0.17 U 0.17 U 0.18 U 0.17 U 0.17 U 0.18 UPyrene 100 mg/kg 0.019 J 0.093 J 0.021 J 0.11 U 0.1 U 0.1 U 0.11 U

J - Estimated valueU - Indicates that the compound was analyzed for but not detectedFD - Duplicate samplemg/kg - Milligrams per kilogramft bls - Feet below land surfaceNYSDEC - New York State Department of Environmental Conservation -- No Soil Cleanup Objectives available

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Table 2. Summary of Semivolatile Organic Compounds in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives Units1,2,4,5-Tetrachlorobenzene -- mg/kg1,2,4-Trichlorobenzene -- mg/kg1,2-Dichlorobenzene 1.1 mg/kg1,3-Dichlorobenzene 2.4 mg/kg1,4-Dichlorobenzene 1.8 mg/kg2,4,5-Trichlorophenol -- mg/kg2,4,6-Trichlorophenol -- mg/kg2,4-Dichlorophenol -- mg/kg2,4-Dimethylphenol -- mg/kg2,4-Dinitrophenol -- mg/kg2,4-Dinitrotoluene -- mg/kg2,6-Dinitrotoluene -- mg/kg2-Chloronaphthalene -- mg/kg2-Chlorophenol -- mg/kg2-Methylnaphthalene -- mg/kg2-Methylphenol (O-Cresol) 0.33 mg/kg2-Nitroaniline -- mg/kg2-Nitrophenol -- mg/kg3- And 4- Methylphenol (Total) 0.33 mg/kg3,3'-Dichlorobenzidine -- mg/kg3-Nitroaniline -- mg/kg4,6-Dinitro-2-Methylphenol -- mg/kg4-Bromophenyl Phenyl Ether -- mg/kg4-Chloro-3-Methylphenol -- mg/kg4-Chloroaniline -- mg/kg4-Chlorophenyl Phenyl Ether -- mg/kg4-Nitroaniline -- mg/kg4-Nitrophenol -- mg/kg

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

RSB-4 RSB-4 RSB-5 RSB-5 RSB-6 RSB-6 RSB-711/17/2016 11/21/2016 11/17/2016 11/21/2016 11/18/2016 11/21/2016 12/14/2016

0 - 2 6 - 7 0 - 2 4 - 6 0 - 2 4 - 6 2 - 4N N N N N N N

0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.1 U 0.1 U 0.1 U 0.1 U 0.1 U 0.1 U 0.1 U

0.15 U 0.15 U 0.15 U 0.15 U 0.16 U 0.16 U 0.16 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.82 U 0.81 U 0.82 U 0.81 U 0.83 U 0.84 U 0.84 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.2 U 0.2 U 0.2 U 0.2 U 0.21 U 0.21 U 0.21 U

0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.37 U 0.37 U 0.37 U 0.36 U 0.37 U 0.38 U 0.38 U0.25 U 0.24 U 0.25 U 0.24 U 0.25 U 0.25 U 0.25 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.44 U 0.44 U 0.45 U 0.44 U 0.45 U 0.45 U 0.46 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.24 U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U 0.25 U

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Table 2. Summary of Semivolatile Organic Compounds in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives Units

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

Acenaphthene 20 mg/kgAcenaphthylene 100 mg/kgAcetophenone -- mg/kgAnthracene 100 mg/kgBenzo(A)Anthracene 1 mg/kgBenzo(A)Pyrene 1 mg/kgBenzo(B)Fluoranthene 1 mg/kgBenzo(G,H,I)Perylene 100 mg/kgBenzo(K)Fluoranthene 0.8 mg/kgBenzoic Acid -- mg/kgBenzyl Alcohol -- mg/kgBenzyl Butyl Phthalate -- mg/kgBiphenyl (Diphenyl) -- mg/kgBis(2-Chloroethoxy) Methane -- mg/kgBis(2-Chloroethyl) Ether (2-Chloroethyl Ether) -- mg/kgBis(2-Chloroisopropyl) Ether -- mg/kgBis(2-Ethylhexyl) Phthalate -- mg/kgCarbazole -- mg/kgChrysene 1 mg/kgDibenz(A,H)Anthracene 0.33 mg/kgDibenzofuran 7 mg/kgDiethyl Phthalate -- mg/kgDimethyl Phthalate -- mg/kgDi-N-Butyl Phthalate -- mg/kgDi-N-Octylphthalate -- mg/kgFluoranthene 100 mg/kgFluorene 30 mg/kgHexachlorobenzene 0.33 mg/kg

RSB-4 RSB-4 RSB-5 RSB-5 RSB-6 RSB-6 RSB-711/17/2016 11/21/2016 11/17/2016 11/21/2016 11/18/2016 11/21/2016 12/14/2016

0 - 2 6 - 7 0 - 2 4 - 6 0 - 2 4 - 6 2 - 4N N N N N N N

0.14 U 0.14 U 0.14 U 0.14 U 0.14 U 0.14 U 0.14 U0.14 U 0.14 U 0.14 U 0.14 U 0.14 U 0.14 U 0.14 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.1 U 0.1 U 0.1 U 0.1 U 0.1 U 0.041 J 0.038 J

0.036 J 0.1 U 0.1 U 0.08 J 0.1 U 0.1 0.190.14 U 0.14 U 0.14 U 0.074 J 0.14 U 0.11 J 0.20.042 J 0.1 U 0.1 U 0.1 0.1 U 0.13 0.280.025 J 0.14 U 0.14 U 0.046 J 0.14 U 0.065 J 0.12 J0.1 U 0.1 U 0.1 U 0.035 J 0.1 U 0.044 J 0.085 J

0.55 U 0.55 U 0.56 U 0.55 U 0.56 U 0.56 U 0.57 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.39 U 0.39 U 0.39 U 0.38 U 0.4 U 0.4 U 0.4 U0.18 U 0.18 U 0.18 U 0.18 U 0.19 U 0.19 U 0.19 U0.15 U 0.15 U 0.15 U 0.15 U 0.16 U 0.16 U 0.16 U0.2 U 0.2 U 0.2 U 0.2 U 0.21 U 0.21 U 0.21 U

0.067 J 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.021 J 0.039 J0.033 J 0.1 U 0.1 U 0.091 J 0.018 J 0.095 J 0.220.1 U 0.1 U 0.1 U 0.1 U 0.1 U 0.1 U 0.03 J

0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.056 J 0.1 U 0.1 U 0.14 0.029 J 0.25 0.440.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.1 U 0.1 U 0.1 U 0.1 U 0.1 U 0.1 U 0.1 U

ROUX ASSOCIATES, INC. Page 5 of 9 2842.0001Y.103/WKB

Table 2. Summary of Semivolatile Organic Compounds in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives Units

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

Hexachlorobutadiene -- mg/kgHexachlorocyclopentadiene -- mg/kgHexachloroethane -- mg/kgIndeno(1,2,3-C,D)Pyrene 0.5 mg/kgIsophorone -- mg/kgNaphthalene 12 mg/kgNitrobenzene -- mg/kgN-Nitrosodi-N-Propylamine -- mg/kgN-Nitrosodiphenylamine -- mg/kgPentachlorophenol 0.8 mg/kgPhenanthrene 100 mg/kgPhenol 0.33 mg/kgPyrene 100 mg/kg

J - Estimated valueU - Indicates that the compound was analyzed for but not detectedFD - Duplicate samplemg/kg - Milligrams per kilogramft bls - Feet below land surfaceNYSDEC - New York State Department of Environmental Conservation -- No Soil Cleanup Objectives available

RSB-4 RSB-4 RSB-5 RSB-5 RSB-6 RSB-6 RSB-711/17/2016 11/21/2016 11/17/2016 11/21/2016 11/18/2016 11/21/2016 12/14/2016

0 - 2 6 - 7 0 - 2 4 - 6 0 - 2 4 - 6 2 - 4N N N N N N N

0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.49 U 0.48 U 0.49 U 0.48 U 0.5 U 0.5 U 0.5 U0.14 U 0.14 U 0.14 U 0.14 U 0.14 U 0.14 U 0.14 U0.065 J 0.14 U 0.14 U 0.048 J 0.14 U 0.068 J 0.13 J0.15 U 0.15 U 0.15 U 0.15 U 0.16 U 0.16 U 0.16 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.023 J 0.18 U0.15 U 0.15 U 0.15 U 0.15 U 0.16 U 0.16 U 0.16 U0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.14 U 0.14 U 0.14 U 0.14 U 0.14 U 0.14 U 0.14 U0.14 U 0.14 U 0.14 U 0.14 U 0.14 U 0.14 U 0.14 U0.024 J 0.1 U 0.1 U 0.082 J 0.1 U 0.19 0.250.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U 0.18 U0.048 J 0.1 U 0.1 U 0.13 0.026 J 0.22 0.36

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Table 2. Summary of Semivolatile Organic Compounds in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives Units1,2,4,5-Tetrachlorobenzene -- mg/kg1,2,4-Trichlorobenzene -- mg/kg1,2-Dichlorobenzene 1.1 mg/kg1,3-Dichlorobenzene 2.4 mg/kg1,4-Dichlorobenzene 1.8 mg/kg2,4,5-Trichlorophenol -- mg/kg2,4,6-Trichlorophenol -- mg/kg2,4-Dichlorophenol -- mg/kg2,4-Dimethylphenol -- mg/kg2,4-Dinitrophenol -- mg/kg2,4-Dinitrotoluene -- mg/kg2,6-Dinitrotoluene -- mg/kg2-Chloronaphthalene -- mg/kg2-Chlorophenol -- mg/kg2-Methylnaphthalene -- mg/kg2-Methylphenol (O-Cresol) 0.33 mg/kg2-Nitroaniline -- mg/kg2-Nitrophenol -- mg/kg3- And 4- Methylphenol (Total) 0.33 mg/kg3,3'-Dichlorobenzidine -- mg/kg3-Nitroaniline -- mg/kg4,6-Dinitro-2-Methylphenol -- mg/kg4-Bromophenyl Phenyl Ether -- mg/kg4-Chloro-3-Methylphenol -- mg/kg4-Chloroaniline -- mg/kg4-Chlorophenyl Phenyl Ether -- mg/kg4-Nitroaniline -- mg/kg4-Nitrophenol -- mg/kg

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

RSB-8 RSB-9 RSB-1012/14/2016 12/14/2016 12/14/2016

3.5 - 5.5 2 - 3 3.5 - 5.5N N N

0.18 U 0.17 U 0.18 U0.18 U 0.17 U 0.18 U0.18 U 0.17 U 0.18 U0.18 U 0.17 U 0.18 U0.18 U 0.17 U 0.18 U0.18 U 0.17 U 0.18 U0.11 U 0.1 U 0.1 U0.16 U 0.16 U 0.16 U0.18 U 0.17 U 0.18 U0.86 U 0.83 U 0.84 U0.18 U 0.17 U 0.18 U0.18 U 0.17 U 0.18 U0.18 U 0.17 U 0.18 U0.18 U 0.17 U 0.18 U0.21 U 0.21 U 0.21 U0.18 U 0.17 U 0.18 U0.18 U 0.17 U 0.18 U0.38 U 0.38 U 0.38 U0.26 U 0.25 U 0.25 U0.18 U 0.17 U 0.18 U0.18 U 0.17 U 0.18 U0.46 U 0.45 U 0.46 U0.18 U 0.17 U 0.18 U0.18 U 0.17 U 0.18 U0.18 U 0.17 U 0.18 U0.18 U 0.17 U 0.18 U0.18 U 0.17 U 0.18 U0.25 U 0.24 U 0.24 U

ROUX ASSOCIATES, INC. Page 7 of 9 2842.0001Y.103/WKB

Table 2. Summary of Semivolatile Organic Compounds in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives Units

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

Acenaphthene 20 mg/kgAcenaphthylene 100 mg/kgAcetophenone -- mg/kgAnthracene 100 mg/kgBenzo(A)Anthracene 1 mg/kgBenzo(A)Pyrene 1 mg/kgBenzo(B)Fluoranthene 1 mg/kgBenzo(G,H,I)Perylene 100 mg/kgBenzo(K)Fluoranthene 0.8 mg/kgBenzoic Acid -- mg/kgBenzyl Alcohol -- mg/kgBenzyl Butyl Phthalate -- mg/kgBiphenyl (Diphenyl) -- mg/kgBis(2-Chloroethoxy) Methane -- mg/kgBis(2-Chloroethyl) Ether (2-Chloroethyl Ether) -- mg/kgBis(2-Chloroisopropyl) Ether -- mg/kgBis(2-Ethylhexyl) Phthalate -- mg/kgCarbazole -- mg/kgChrysene 1 mg/kgDibenz(A,H)Anthracene 0.33 mg/kgDibenzofuran 7 mg/kgDiethyl Phthalate -- mg/kgDimethyl Phthalate -- mg/kgDi-N-Butyl Phthalate -- mg/kgDi-N-Octylphthalate -- mg/kgFluoranthene 100 mg/kgFluorene 30 mg/kgHexachlorobenzene 0.33 mg/kg

RSB-8 RSB-9 RSB-1012/14/2016 12/14/2016 12/14/2016

3.5 - 5.5 2 - 3 3.5 - 5.5N N N

0.14 U 0.14 U 0.14 U0.14 U 0.14 U 0.14 U0.18 U 0.17 U 0.18 U0.11 U 0.1 U 0.1 U0.11 U 0.043 J 0.021 J0.14 U 0.042 J 0.14 U0.11 U 0.052 J 0.1 U0.14 U 0.025 J 0.14 U0.11 U 0.1 U 0.1 U0.58 U 0.56 U 0.57 U0.18 U 0.17 U 0.18 U0.18 U 0.17 U 0.18 U0.41 U 0.4 U 0.4 U0.19 U 0.19 U 0.19 U0.16 U 0.16 U 0.16 U0.21 U 0.21 U 0.21 U0.18 U 0.17 U 0.18 U0.18 U 0.17 U 0.18 U0.11 U 0.04 J 0.02 J0.11 U 0.1 U 0.1 U0.18 U 0.17 U 0.18 U0.18 U 0.17 U 0.18 U0.18 U 0.17 U 0.18 U0.18 U 0.17 U 0.18 U0.18 U 0.17 U 0.18 U0.11 U 0.074 J 0.035 J0.18 U 0.17 U 0.18 U0.11 U 0.1 U 0.1 U

ROUX ASSOCIATES, INC. Page 8 of 9 2842.0001Y.103/WKB

Table 2. Summary of Semivolatile Organic Compounds in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives Units

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

Hexachlorobutadiene -- mg/kgHexachlorocyclopentadiene -- mg/kgHexachloroethane -- mg/kgIndeno(1,2,3-C,D)Pyrene 0.5 mg/kgIsophorone -- mg/kgNaphthalene 12 mg/kgNitrobenzene -- mg/kgN-Nitrosodi-N-Propylamine -- mg/kgN-Nitrosodiphenylamine -- mg/kgPentachlorophenol 0.8 mg/kgPhenanthrene 100 mg/kgPhenol 0.33 mg/kgPyrene 100 mg/kg

J - Estimated valueU - Indicates that the compound was analyzed for but not detectedFD - Duplicate samplemg/kg - Milligrams per kilogramft bls - Feet below land surfaceNYSDEC - New York State Department of Environmental Conservation -- No Soil Cleanup Objectives available

RSB-8 RSB-9 RSB-1012/14/2016 12/14/2016 12/14/2016

3.5 - 5.5 2 - 3 3.5 - 5.5N N N

0.18 U 0.17 U 0.18 U0.51 U 0.5 U 0.5 U0.14 U 0.14 U 0.14 U0.14 U 0.026 J 0.14 U0.16 U 0.16 U 0.16 U0.18 U 0.17 U 0.18 U0.16 U 0.16 U 0.16 U0.18 U 0.17 U 0.18 U0.14 U 0.14 U 0.14 U0.14 U 0.14 U 0.14 U0.11 U 0.023 J 0.028 J0.18 U 0.17 U 0.18 U0.11 U 0.068 J 0.029 J

ROUX ASSOCIATES, INC. Page 9 of 9 2842.0001Y.103/WKB

Table 3. Summary of Metals in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

RSB-1 RSB-1 RSB-2 RSB-2 RSB-3 RSB-3 RSB-3 RSB-411/17/2016 11/21/2016 11/17/2016 11/21/2016 11/18/2016 11/18/2016 11/21/2016 11/17/2016

0 - 2 4 - 6 0 - 2 7 - 8 0 - 2 0 - 2 4 - 6 0 - 2N N N N FD N N N

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup Objectives Units

Aluminum -- mg/kg 5300 3900 6200 2700 5000 5400 13000 4200Antimony -- mg/kg 4.1 U 4 U 4.2 U 4.1 U 4.2 U 4 U 4.2 U 4.2 UArsenic 13 mg/kg 0.9 1.9 1.2 0.49 J 0.87 1.2 0.3 J 1.7Barium 350 mg/kg 18 21 52 17 26 29 19 31Beryllium 7.2 mg/kg 0.03 J 0.4 U 0.05 J 0.05 J 0.05 J 0.05 J 0.05 J 0.08 JCadmium 2.5 mg/kg 0.82 U 0.79 U 0.84 U 0.81 U 0.84 U 0.81 U 0.85 U 0.84 UCalcium -- mg/kg 160000 120000 58000 140000 72000 74000 160000 9800Chromium, Total 30 mg/kg 5.9 6.5 10 3.8 7.4 8.2 11 7.9Cobalt -- mg/kg 2.3 1.5 J 3.8 1.8 2.8 3.2 2.5 3.6Copper 50 mg/kg 10 6.4 16 6.2 13 14 12 10Iron -- mg/kg 5500 4100 8200 3800 5800 6500 6700 8600Lead 63 mg/kg 21 13 20 3.2 J 29 38 2 J 18Magnesium -- mg/kg 74000 50000 38000 65000 47000 48000 60000 5400Manganese 1600 mg/kg 220 140 220 140 180 190 78 270Mercury 0.18 mg/kg 0.02 J 0.02 J 0.04 J 0.07 U 0.12 0.08 0.07 U 0.03 JNickel 30 mg/kg 4.9 3.8 8.2 3.5 6.1 6.6 4 8.1Potassium -- mg/kg 430 480 980 370 790 820 210 680Selenium 3.9 mg/kg 1.6 U 1.6 U 1.7 U 1.6 U 1.7 U 1.6 U 1.7 U 1.7 USilver 2 mg/kg 0.82 U 0.79 U 0.84 U 0.81 U 0.84 U 0.81 U 0.85 U 0.84 USodium -- mg/kg 110 J 130 J 210 100 J 350 390 390 150 JThallium -- mg/kg 1.6 U 1.6 U 1.7 U 1.6 U 1.7 U 1.6 U 1.7 U 1.7 UVanadium -- mg/kg 9.1 8.6 15 6.1 12 14 15 11Zinc 109 mg/kg 26 22 54 26 30 32 14 33

J - Estimated value

U - Indicates that the compound was analyzed for but not detected

FD - Duplicate sample

mg/kg - Milligrams per kilogram

ft bls - Feet below land surface

NYSDEC - New York State Department of Environmental Conservation

-- No Soil Cleanup Objectives available

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

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Table 3. Summary of Metals in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup Objectives Units

Aluminum -- mg/kgAntimony -- mg/kgArsenic 13 mg/kgBarium 350 mg/kgBeryllium 7.2 mg/kgCadmium 2.5 mg/kgCalcium -- mg/kgChromium, Total 30 mg/kgCobalt -- mg/kgCopper 50 mg/kgIron -- mg/kgLead 63 mg/kgMagnesium -- mg/kgManganese 1600 mg/kgMercury 0.18 mg/kgNickel 30 mg/kgPotassium -- mg/kgSelenium 3.9 mg/kgSilver 2 mg/kgSodium -- mg/kgThallium -- mg/kgVanadium -- mg/kgZinc 109 mg/kg

J - Estimated value

U - Indicates that the compound was analyzed for but not detected

FD - Duplicate sample

mg/kg - Milligrams per kilogram

ft bls - Feet below land surface

NYSDEC - New York State Department of Environmental Conservation

-- No Soil Cleanup Objectives available

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

RSB-4 RSB-5 RSB-5 RSB-6 RSB-6 RSB-7 RSB-8 RSB-911/21/2016 11/17/2016 11/21/2016 11/18/2016 11/21/2016 12/14/2016 12/14/2016 12/14/2016

6 - 7 0 - 2 4 - 6 0 - 2 4 - 6 2 - 4 3.5 - 5.5 2 - 3N N N N N N N N

2500 3200 4000 4800 4800 5200 5200 58004 U 4.1 U 4.1 U 4.1 U 4.1 U 4.1 U 4.2 U 4.1 U

0.8 U 0.28 J 3.9 1.1 3.4 1.9 1.4 1.322 17 59 27 36 28 30 36

0.03 J 0.41 U 0.1 J 0.41 U 0.08 J 0.11 J 0.1 J 0.07 J0.8 U 0.81 U 0.09 J 0.82 U 0.09 J 0.82 U 0.85 U 0.82 U

220000 120000 120000 78000 120000 3300 5800 200003.1 4.7 6.4 7.3 6.9 12 12 17

1.1 J 1.9 2.5 3 2.7 4.8 4.1 4.43.7 11 14 13 19 30 10 22

3000 4300 5000 6100 9300 12000 10000 94003.7 J 7.8 25 28 24 10 4.6 12

130000 62000 45000 47000 40000 3100 5800 13000180 150 170 180 160 220 160 260

0.07 U 0.02 J 0.04 J 0.04 J 0.02 J 0.03 J 0.02 J 0.072.3 4.1 6.2 6.3 6.5 11 9.7 12390 470 760 930 820 570 720 860

1.6 U 1.6 U 1.6 U 1.6 U 1.6 U 1.6 U 1.7 U 1.6 U0.8 U 0.81 U 0.82 U 0.82 U 0.82 U 0.82 U 0.85 U 0.82 U93 J 72 J 440 110 J 190 67 J 260 220

1.6 U 1.6 U 1.6 U 1.6 U 1.6 U 1.6 U 1.7 U 1.6 U5 8 11 11 34 12 13 16

34 17 46 34 33 45 24 33

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Table 3. Summary of Metals in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup Objectives Units

Aluminum -- mg/kgAntimony -- mg/kgArsenic 13 mg/kgBarium 350 mg/kgBeryllium 7.2 mg/kgCadmium 2.5 mg/kgCalcium -- mg/kgChromium, Total 30 mg/kgCobalt -- mg/kgCopper 50 mg/kgIron -- mg/kgLead 63 mg/kgMagnesium -- mg/kgManganese 1600 mg/kgMercury 0.18 mg/kgNickel 30 mg/kgPotassium -- mg/kgSelenium 3.9 mg/kgSilver 2 mg/kgSodium -- mg/kgThallium -- mg/kgVanadium -- mg/kgZinc 109 mg/kg

J - Estimated value

U - Indicates that the compound was analyzed for but not detected

FD - Duplicate sample

mg/kg - Milligrams per kilogram

ft bls - Feet below land surface

NYSDEC - New York State Department of Environmental Conservation

-- No Soil Cleanup Objectives available

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

RSB-1012/14/2016

3.5 - 5.5N

62004.1 U1.526

0.13 J0.81 U9600

124.517

99005.4

11000240

0.02 J11

6001.6 U

0.81 U300

1.6 U1621

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Table 4. Summary of Polychlorinated Biphenyls in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

RSB-1 RSB-1 RSB-2 RSB-2 RSB-3 RSB-3 RSB-311/17/2016 11/21/2016 11/17/2016 11/21/2016 11/18/2016 11/18/2016 11/21/2016

0 - 2 4 - 6 0 - 2 7 - 8 0 - 2 0 - 2 4 - 6N N N N FD N N

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives UnitsPCB-1016 (Aroclor 1016) -- mg/kg 0.034 U 0.0332 U 0.0345 U 0.0351 U 0.0343 U 0.0346 U 0.0349 UPCB-1221 (Aroclor 1221) -- mg/kg 0.034 U 0.0332 U 0.0345 U 0.0351 U 0.0343 U 0.0346 U 0.0349 UPCB-1232 (Aroclor 1232) -- mg/kg 0.034 U 0.0332 U 0.0345 U 0.0351 U 0.0343 U 0.0346 U 0.0349 UPCB-1242 (Aroclor 1242) -- mg/kg 0.034 U 0.0332 U 0.0345 U 0.0351 U 0.0343 U 0.0346 U 0.0349 UPCB-1248 (Aroclor 1248) -- mg/kg 0.034 U 0.0332 U 0.0345 U 0.0351 U 0.0343 U 0.0346 U 0.0349 UPCB-1254 (Aroclor 1254) -- mg/kg 0.034 U 0.0332 U 0.0345 U 0.0351 U 0.0343 U 0.0346 U 0.0349 UPCB-1260 (Aroclor 1260) -- mg/kg 0.034 U 0.0332 U 0.0345 U 0.0351 U 0.0343 U 0.0346 U 0.0349 UPCB-1262 (Aroclor 1262) -- mg/kg 0.034 U 0.0332 U 0.0345 U 0.0351 U 0.0343 U 0.0346 U 0.0349 UPCB-1268 (Aroclor 1268) -- mg/kg 0.034 U 0.0332 U 0.0345 U 0.0351 U 0.0343 U 0.0346 U 0.0349 UPolychlorinated Biphenyl (PCBs) 0.1 mg/kg 0.034 U 0.0332 U 0.0345 U 0.0351 U 0.0343 U 0.0346 U 0.0349 U

J - Estimated value

U - Indicates that the compound was analyzed for but not detected

FD - Duplicate sample

mg/kg - Milligrams per kilogram

ft bls - Feet below land surface

NYSDEC - New York State Department of Environmental Conservation

-- No Soil Cleanup Objectives available

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

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Table 4. Summary of Polychlorinated Biphenyls in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives UnitsPCB-1016 (Aroclor 1016) -- mg/kgPCB-1221 (Aroclor 1221) -- mg/kgPCB-1232 (Aroclor 1232) -- mg/kgPCB-1242 (Aroclor 1242) -- mg/kgPCB-1248 (Aroclor 1248) -- mg/kgPCB-1254 (Aroclor 1254) -- mg/kgPCB-1260 (Aroclor 1260) -- mg/kgPCB-1262 (Aroclor 1262) -- mg/kgPCB-1268 (Aroclor 1268) -- mg/kgPolychlorinated Biphenyl (PCBs) 0.1 mg/kg

J - Estimated value

U - Indicates that the compound was analyzed for but not detected

FD - Duplicate sample

mg/kg - Milligrams per kilogram

ft bls - Feet below land surface

NYSDEC - New York State Department of Environmental Conservation

-- No Soil Cleanup Objectives available

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

RSB-4 RSB-4 RSB-5 RSB-5 RSB-6 RSB-6 RSB-711/17/2016 11/21/2016 11/17/2016 11/21/2016 11/18/2016 11/21/2016 12/14/2016

0 - 2 6 - 7 0 - 2 4 - 6 0 - 2 4 - 6 2 - 4N N N N N N N

0.0345 U 0.0325 U 0.034 U 0.0341 U 0.034 U 0.0353 U 0.034 U0.0345 U 0.0325 U 0.034 U 0.0341 U 0.034 U 0.0353 U 0.034 U0.0345 U 0.0325 U 0.034 U 0.0341 U 0.034 U 0.0353 U 0.034 U0.0345 U 0.0325 U 0.034 U 0.0341 U 0.034 U 0.0353 U 0.034 U0.0345 U 0.0325 U 0.034 U 0.0341 U 0.034 U 0.0353 U 0.034 U0.0345 U 0.0325 U 0.034 U 0.0341 U 0.034 U 0.0353 U 0.034 U0.0345 U 0.0325 U 0.034 U 0.0341 U 0.034 U 0.0353 U 0.034 U0.0345 U 0.0325 U 0.034 U 0.0341 U 0.034 U 0.0353 U 0.034 U0.0345 U 0.0325 U 0.034 U 0.0341 U 0.034 U 0.0353 U 0.034 U0.0345 U 0.0325 U 0.034 U 0.0341 U 0.034 U 0.0353 U 0.034 U

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Table 4. Summary of Polychlorinated Biphenyls in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives UnitsPCB-1016 (Aroclor 1016) -- mg/kgPCB-1221 (Aroclor 1221) -- mg/kgPCB-1232 (Aroclor 1232) -- mg/kgPCB-1242 (Aroclor 1242) -- mg/kgPCB-1248 (Aroclor 1248) -- mg/kgPCB-1254 (Aroclor 1254) -- mg/kgPCB-1260 (Aroclor 1260) -- mg/kgPCB-1262 (Aroclor 1262) -- mg/kgPCB-1268 (Aroclor 1268) -- mg/kgPolychlorinated Biphenyl (PCBs) 0.1 mg/kg

J - Estimated value

U - Indicates that the compound was analyzed for but not detected

FD - Duplicate sample

mg/kg - Milligrams per kilogram

ft bls - Feet below land surface

NYSDEC - New York State Department of Environmental Conservation

-- No Soil Cleanup Objectives available

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

RSB-8 RSB-9 RSB-1012/14/2016 12/14/2016 12/14/2016

3.5 - 5.5 2 - 3 3.5 - 5.5N N N

0.0358 U 0.0344 U 0.035 U0.0358 U 0.0344 U 0.035 U0.0358 U 0.0344 U 0.035 U0.0358 U 0.0344 U 0.035 U0.0358 U 0.0344 U 0.035 U0.0358 U 0.0344 U 0.035 U0.0358 U 0.0344 U 0.035 U0.0358 U 0.0344 U 0.035 U0.0358 U 0.0344 U 0.035 U0.0358 U 0.0344 U 0.035 U

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Table 5. Summary of Pesticides and Herbicides in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

RSB-1 RSB-1 RSB-2 RSB-2 RSB-3 RSB-3 RSB-311/17/2016 11/21/2016 11/17/2016 11/21/2016 11/18/2016 11/18/2016 11/21/2016

0 - 2 4 - 6 0 - 2 7 - 8 0 - 2 0 - 2 4 - 6N N N N FD N N

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives UnitsAldrin 0.005 mg/kg 0.00163 U 0.00162 U 0.00166 U 0.00164 U 0.00166 U 0.00165 U 0.00169 UAlpha Bhc (Alpha Hexachlorocyclohexane) 0.02 mg/kg 0.000678 U 0.000674 U 0.000694 U 0.000684 U 0.00069 U 0.000689 U 0.000706 UAlpha Endosulfan 2.4 mg/kg 0.00163 U 0.00162 U 0.00166 U 0.00164 U 0.00166 U 0.00165 U 0.00169 UBeta Bhc (Beta Hexachlorocyclohexane) 0.036 mg/kg 0.00163 U 0.00162 U 0.00166 U 0.00164 U 0.00166 U 0.00165 U 0.00169 UBeta Endosulfan 2.4 mg/kg 0.00163 U 0.00162 U 0.00166 U 0.00164 U 0.00166 U 0.00165 U 0.00169 UChlordane -- mg/kg 0.0132 U 0.0131 U 0.0135 U 0.0133 U 0.0134 U 0.0134 U 0.0138 Ucis-Chlordane 0.094 mg/kg 0.00204 U 0.00202 U 0.00208 U 0.00205 U 0.00207 U 0.00207 U 0.00212 UDelta BHC (Delta Hexachlorocyclohexane) 0.04 mg/kg 0.00163 U 0.00162 U 0.00166 U 0.00164 U 0.00166 U 0.00165 U 0.00169 UDieldrin 0.005 mg/kg 0.00102 U 0.00101 U 0.00104 U 0.00103 U 0.00104 U 0.00103 U 0.00106 UEndosulfan Sulfate 2.4 mg/kg 0.000678 U 0.000674 U 0.000694 U 0.000684 U 0.00069 U 0.000689 U 0.000706 UEndrin 0.014 mg/kg 0.000678 U 0.000674 U 0.000694 U 0.000684 U 0.00069 U 0.000689 U 0.000706 UEndrin Aldehyde -- mg/kg 0.00204 U 0.00202 U 0.00208 U 0.00205 U 0.00207 U 0.00207 U 0.00212 UEndrin Ketone -- mg/kg 0.00163 U 0.00162 U 0.00166 U 0.00164 U 0.00166 U 0.00165 U 0.00169 UGamma Bhc (Lindane) 0.1 mg/kg 0.000678 U 0.000674 U 0.000694 U 0.000684 U 0.00152 0.000689 U 0.000706 UHeptachlor 0.042 mg/kg 0.000814 U 0.000809 U 0.000832 U 0.000821 U 0.000828 U 0.000827 U 0.000847 UHeptachlor Epoxide -- mg/kg 0.00305 U 0.00303 U 0.00312 U 0.00308 U 0.0031 U 0.0031 U 0.00317 UMethoxychlor -- mg/kg 0.00305 U 0.00303 U 0.00312 U 0.00308 U 0.0031 U 0.0031 U 0.00317 UP,P'-DDD 0.0033 mg/kg 0.00163 U 0.00162 U 0.00166 U 0.00164 U 0.00166 U 0.00165 U 0.00169 UP,P'-DDE 0.0033 mg/kg 0.00163 U 0.00162 U 0.00166 U 0.00164 U 0.00166 U 0.00165 U 0.00169 UP,P'-DDT 0.0033 mg/kg 0.00305 U 0.00303 U 0.00312 U 0.00308 U 0.0031 U 0.0031 U 0.00317 UToxaphene -- mg/kg 0.0305 U 0.0303 U 0.0312 U 0.0308 U 0.031 U 0.031 U 0.0317 Utrans-Chlordane -- mg/kg 0.00204 U 0.00202 U 0.00208 U 0.00205 U 0.00207 U 0.00207 U 0.00212 U

J - Estimated valueU - Indicates that the compound was analyzed for but not detectedFD - Duplicate samplemg/kg - Milligrams per kilogramft bls - Feet below land surfaceNYSDEC - New York State Department of Environmental Conservation -- No Soil Cleanup Objectives available

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

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Table 5. Summary of Pesticides and Herbicides in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives UnitsAldrin 0.005 mg/kgAlpha Bhc (Alpha Hexachlorocyclohexane) 0.02 mg/kgAlpha Endosulfan 2.4 mg/kgBeta Bhc (Beta Hexachlorocyclohexane) 0.036 mg/kgBeta Endosulfan 2.4 mg/kgChlordane -- mg/kgcis-Chlordane 0.094 mg/kgDelta BHC (Delta Hexachlorocyclohexane) 0.04 mg/kgDieldrin 0.005 mg/kgEndosulfan Sulfate 2.4 mg/kgEndrin 0.014 mg/kgEndrin Aldehyde -- mg/kgEndrin Ketone -- mg/kgGamma Bhc (Lindane) 0.1 mg/kgHeptachlor 0.042 mg/kgHeptachlor Epoxide -- mg/kgMethoxychlor -- mg/kgP,P'-DDD 0.0033 mg/kgP,P'-DDE 0.0033 mg/kgP,P'-DDT 0.0033 mg/kgToxaphene -- mg/kgtrans-Chlordane -- mg/kg

J - Estimated valueU - Indicates that the compound was analyzed for but not detectedFD - Duplicate samplemg/kg - Milligrams per kilogramft bls - Feet below land surfaceNYSDEC - New York State Department of Environmental Conservation -- No Soil Cleanup Objectives available

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

RSB-4 RSB-4 RSB-5 RSB-5 RSB-6 RSB-6 RSB-711/17/2016 11/21/2016 11/17/2016 11/21/2016 11/18/2016 11/21/2016 12/14/2016

0 - 2 6 - 7 0 - 2 4 - 6 0 - 2 4 - 6 2 - 4N N N N N N N

0.00164 U 0.00157 U 0.00163 U 0.00161 U 0.00164 U 0.00162 U 0.00166 U0.000685 U 0.000656 U 0.000678 U 0.000672 U 0.000685 U 0.000675 U 0.000691 U0.00164 U 0.00157 U 0.00163 U 0.00161 U 0.00164 U 0.00162 U 0.00166 U0.00164 U 0.00157 U 0.00163 U 0.00161 U 0.00164 U 0.00162 U 0.00166 U0.00164 U 0.00157 U 0.00163 U 0.00161 U 0.00164 U 0.00162 U 0.00166 U0.0134 U 0.0128 U 0.0132 U 0.0131 U 0.0134 U 0.0132 U 0.0135 U

0.00206 U 0.00197 U 0.00203 U 0.00202 U 0.00206 U 0.00202 U 0.00207 U0.00164 U 0.00157 U 0.00163 U 0.00161 U 0.00164 U 0.00162 U 0.00166 U0.00103 U 0.000983 U 0.00102 U 0.00101 U 0.00103 U 0.00101 U 0.00104 U

0.000685 U 0.000656 U 0.000678 U 0.000672 U 0.000685 U 0.000675 U 0.000691 U0.000685 U 0.000656 U 0.000678 U 0.000672 U 0.000685 U 0.000675 U 0.000691 U0.00206 U 0.00197 U 0.00203 U 0.00202 U 0.00206 U 0.00202 U 0.00207 U0.00164 U 0.00157 U 0.00163 U 0.00161 U 0.00164 U 0.00162 U 0.00166 U

0.000685 U 0.000656 U 0.000678 U 0.000672 U 0.000685 U 0.000675 U 0.000691 U0.000822 U 0.000787 U 0.000814 U 0.000806 U 0.000822 U 0.00081 U 0.000829 U0.00308 U 0.00295 U 0.00305 U 0.00302 U 0.00308 U 0.00304 U 0.00311 U0.00308 U 0.00295 U 0.00305 U 0.00302 U 0.00308 U 0.00304 U 0.00311 U0.00164 U 0.00157 U 0.00163 U 0.00161 U 0.00164 U 0.00162 U 0.00166 U0.00164 U 0.00157 U 0.00163 U 0.00161 U 0.00164 U 0.00162 U 0.00166 U0.00308 U 0.00295 U 0.00305 U 0.00302 U 0.00308 U 0.00304 U 0.00311 U0.0308 U 0.0295 U 0.0305 U 0.0302 U 0.0308 U 0.0304 U 0.0311 U

0.00206 U 0.00197 U 0.00203 U 0.00202 U 0.00206 U 0.00202 U 0.00207 U

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Table 5. Summary of Pesticides and Herbicides in Soil, Inwood Charter School, 3896 10th Avenue, Inwood, New York DRAFT

Parameter

NYSDEC Subpart 375-6 Unrestricted Use Soil Cleanup

Objectives UnitsAldrin 0.005 mg/kgAlpha Bhc (Alpha Hexachlorocyclohexane) 0.02 mg/kgAlpha Endosulfan 2.4 mg/kgBeta Bhc (Beta Hexachlorocyclohexane) 0.036 mg/kgBeta Endosulfan 2.4 mg/kgChlordane -- mg/kgcis-Chlordane 0.094 mg/kgDelta BHC (Delta Hexachlorocyclohexane) 0.04 mg/kgDieldrin 0.005 mg/kgEndosulfan Sulfate 2.4 mg/kgEndrin 0.014 mg/kgEndrin Aldehyde -- mg/kgEndrin Ketone -- mg/kgGamma Bhc (Lindane) 0.1 mg/kgHeptachlor 0.042 mg/kgHeptachlor Epoxide -- mg/kgMethoxychlor -- mg/kgP,P'-DDD 0.0033 mg/kgP,P'-DDE 0.0033 mg/kgP,P'-DDT 0.0033 mg/kgToxaphene -- mg/kgtrans-Chlordane -- mg/kg

J - Estimated valueU - Indicates that the compound was analyzed for but not detectedFD - Duplicate samplemg/kg - Milligrams per kilogramft bls - Feet below land surfaceNYSDEC - New York State Department of Environmental Conservation -- No Soil Cleanup Objectives available

Sample Designation:Sample Date:

Sample Depth (ft bls):Normal or Field Duplicate:

RSB-8 RSB-9 RSB-1012/14/2016 12/14/2016 12/14/2016

3.5 - 5.5 2 - 3 3.5 - 5.5N N N

0.00167 U 0.00168 U 0.00165 U0.000696 U 0.000702 U 0.000688 U0.00167 U 0.00168 U 0.00165 U0.00167 U 0.00168 U 0.00165 U0.00167 U 0.00168 U 0.00165 U0.0136 U 0.0137 U 0.0134 U

0.00209 U 0.00211 U 0.00206 U0.00167 U 0.00168 U 0.00165 U0.00104 U 0.00105 U 0.00103 U

0.000696 U 0.000702 U 0.000688 U0.000696 U 0.000702 U 0.000688 U0.00209 U 0.00211 U 0.00206 U0.00167 U 0.00168 U 0.00165 U

0.000696 U 0.000702 U 0.000688 U0.000836 U 0.000843 U 0.000825 U0.00313 U 0.00316 U 0.0031 U0.00313 U 0.00316 U 0.0031 U0.00167 U 0.00168 U 0.00165 U0.00167 U 0.00168 U 0.00165 U0.00313 U 0.00316 U 0.0031 U0.0313 U 0.0316 U 0.031 U

0.00209 U 0.00211 U 0.00206 U

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Table 6. Summary of Volatile Organic Compounds in Soil Vapor and Indoor and Ambient Air, Inwood Charter School, 3896 10th Avenue, Inwood, New YorkDRAFT

Sample Designation: AA-112216 IA-1 IA-112216 IA121516 SS-1Sample Date: 11/22/2016 10/31/2016 11/22/2016 12/15/2016 10/31/2016

Parameter Monitor Mitigate Monitor Mitigate UnitsCarbon Tetrachloride >50 >250 -- -- µg/m3 0.428 0.359 0.434 0.51 1.26 UTrichloroethylene (TCE) >50 >250 -- -- µg/m3 0.107 U 0.107 U 0.107 U 0.107 U 1.07 UVinyl Chloride >50 >250 -- -- µg/m3 0.051 U 0.051 U 0.051 U 0.051 U 0.511 U1,1-Dichloroethene -- -- >100 >1000 µg/m3 0.079 U 0.079 U 0.079 U 0.079 U 0.793 UCis-1,2-Dichloroethylene -- -- >100 >1000 µg/m3 0.079 U 0.079 U 0.079 U 0.079 U 0.793 UTetrachloroethylene (PCE) -- -- >100 >1000 µg/m3 0.183 0.136 U 0.136 U 1.63 2.581,1,1-Trichloroethane -- -- >100 >1000 µg/m3 0.109 U 0.109 U 0.109 U 0.109 U 1.09 U

1,1,2,2-Tetrachloroethane -- -- -- -- µg/m3 1.37 U 1.37 U 1.37 U 1.37 U 1.37 U1,1,2-Trichloro-1,2,2-Trifluoroethane -- -- -- -- µg/m3 1.53 U 1.53 U 1.53 U 1.53 U 1.53 U1,1,2-Trichloroethane -- -- -- -- µg/m3 1.09 U 1.09 U 1.09 U 1.09 U 1.09 U1,1-Dichloroethane -- -- -- -- µg/m3 0.809 U 0.809 U 0.809 U 0.809 U 0.809 U1,2,4-Trichlorobenzene -- -- -- -- µg/m3 1.48 U 1.48 U 1.48 U 1.48 U 1.48 U1,2,4-Trimethylbenzene -- -- -- -- µg/m3 2.38 3.29 4.57 34.4 0.983 U1,2-Dibromoethane (Ethylene Dibromide) -- -- -- -- µg/m3 1.54 U 1.54 U 1.54 U 1.54 U 1.54 U1,2-Dichlorobenzene -- -- -- -- µg/m3 1.2 U 1.2 U 1.2 U 1.2 U 1.2 U1,2-Dichloroethane -- -- -- -- µg/m3 0.809 U 0.809 U 0.809 U 0.809 U 0.809 U1,2-Dichloropropane -- -- -- -- µg/m3 0.924 U 0.924 U 0.924 U 0.924 U 0.924 U1,2-Dichlorotetrafluoroethane -- -- -- -- µg/m3 1.4 U 1.4 U 1.4 U 1.4 U 1.4 U1,3,5-Trimethylbenzene (Mesitylene) -- -- -- -- µg/m3 0.983 U 0.983 U 1.37 9.68 0.983 U1,3-Butadiene -- -- -- -- µg/m3 0.58 1.52 1.58 10.7 0.442 U1,3-Dichlorobenzene -- -- -- -- µg/m3 1.2 U 1.2 U 1.2 U 1.2 U 1.2 U1,4-Dichlorobenzene -- -- -- -- µg/m3 1.2 U 1.2 U 1.2 U 1.2 U 1.2 U1,4-Dioxane (P-Dioxane) -- -- -- -- µg/m3 0.721 U 0.721 U 0.721 U 1.88 0.721 U2,2,4-Trimethylpentane -- -- -- -- µg/m3 4.86 12.7 10.5 34 0.934 U2-Hexanone -- -- -- -- µg/m3 0.82 U 0.82 U 0.82 U 0.82 U 0.82 U4-Ethyltoluene -- -- -- -- µg/m3 0.983 U 0.983 U 1.33 8.95 0.983 UAcetone -- -- -- -- µg/m3 54.2 2.38 U 2.38 U 3920 7.46Allyl Chloride (3-Chloropropene) -- -- -- -- µg/m3 0.626 U 0.626 U 0.626 U 0.626 U 0.626 UBenzene -- -- -- -- µg/m3 3.32 9.04 6.87 30.7 0.639 UBenzyl Chloride -- -- -- -- µg/m3 1.04 U 1.04 U 1.04 U 1.04 U 1.04 UBromodichloromethane -- -- -- -- µg/m3 1.34 U 1.34 U 1.34 U 1.34 U 1.34 UBromoform -- -- -- -- µg/m3 2.07 U 2.07 U 2.07 U 2.07 U 2.07 UBromomethane -- -- -- -- µg/m3 0.777 U 0.777 U 0.777 U 0.777 U 0.777 UCarbon Disulfide -- -- -- -- µg/m3 0.623 U 0.623 U 0.623 U 0.623 U 1.91Chlorobenzene -- -- -- -- µg/m3 0.921 U 0.921 U 0.921 U 0.921 U 0.921 UChloroethane -- -- -- -- µg/m3 0.528 U 0.528 U 0.528 U 0.528 U 0.528 UChloroform -- -- -- -- µg/m3 0.977 U 0.977 U 0.977 U 0.977 U 1.7

Soil Vapor/Indoor AirMatrix 1

Soil Vapor/Indoor AirMatrix 2

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Table 6. Summary of Volatile Organic Compounds in Soil Vapor and Indoor and Ambient Air, Inwood Charter School, 3896 10th Avenue, Inwood, New YorkDRAFT

Sample Designation: AA-112216 IA-1 IA-112216 IA121516 SS-1Sample Date: 11/22/2016 10/31/2016 11/22/2016 12/15/2016 10/31/2016

Parameter Monitor Mitigate Monitor Mitigate Units

Soil Vapor/Indoor AirMatrix 1

Soil Vapor/Indoor AirMatrix 2

Chloromethane -- -- -- -- µg/m3 0.975 1.04 1.07 0.902 0.413 UCis-1,3-Dichloropropene -- -- -- -- µg/m3 0.908 U 0.908 U 0.908 U 0.908 U 0.908 UCyclohexane -- -- -- -- µg/m3 1.04 2.15 1.47 18.6 0.688 UDibromochloromethane -- -- -- -- µg/m3 1.7 U 1.7 U 1.7 U 1.7 U 1.7 UDichlorodifluoromethane -- -- -- -- µg/m3 2.19 1.68 2.55 2.25 2.48Ethanol -- -- -- -- µg/m3 22.4 82 45.6 228 9.42 UEthyl Acetate -- -- -- -- µg/m3 1.8 U 1.8 U 1.8 U 1.8 U 1.8 UEthylbenzene -- -- -- -- µg/m3 2.1 3.49 4.12 25.6 0.869 UHexachlorobutadiene -- -- -- -- µg/m3 2.13 U 2.13 U 2.13 U 2.13 U 2.13 UIsopropanol -- -- -- -- µg/m3 1.23 U 1.37 1.38 8.58 2.41m,p-Xylene -- -- -- -- µg/m3 6.99 12.6 13.4 86 1.74 UMethyl Ethyl Ketone (2-Butanone) -- -- -- -- µg/m3 1.47 U 1.47 U 1.47 U 2.83 1.47 UMethyl Isobutyl Ketone (4-Methyl-2-Pentanone) -- -- -- -- µg/m3 2.05 U 2.05 U 2.05 U 2.05 U 2.05 UMethylene Chloride -- -- -- -- µg/m3 1.74 U 2.56 1.74 U 1.74 U 1.74 UN-Heptane -- -- -- -- µg/m3 7.25 3.48 4.04 82 0.82 UN-Hexane -- -- -- -- µg/m3 2.79 6.38 4.16 47.2 0.74O-Xylene (1,2-Dimethylbenzene) -- -- -- -- µg/m3 2.49 4.32 5 32.8 0.869 UStyrene -- -- -- -- µg/m3 0.852 U 0.852 U 0.852 U 2.68 0.852 UTert-Butyl Alcohol -- -- -- -- µg/m3 1.52 U 1.52 U 1.52 U 1.52 U 1.52 UTert-Butyl Methyl Ether -- -- -- -- µg/m3 0.721 U 0.721 U 0.721 U 0.721 U 0.721 UTetrahydrofuran -- -- -- -- µg/m3 1.47 U 1.47 U 1.47 U 1.47 U 1.47 UToluene -- -- -- -- µg/m3 16.9 22.9 63.3 739 0.829Trans-1,2-Dichloroethene -- -- -- -- µg/m3 0.793 U 0.793 U 0.793 U 0.793 U 0.793 UTrans-1,3-Dichloropropene -- -- -- -- µg/m3 0.908 U 0.908 U 0.908 U 0.908 U 0.908 UTrichlorofluoromethane -- -- -- -- µg/m3 1.18 1.12 U 1.24 1.26 1.12 UVinyl Bromide -- -- -- -- µg/m3 0.874 U 0.874 U 0.874 U 0.874 U 0.874 U

J - Estimated valueU - Indicates that the compound was analyzed for but not detectedug/m3 - Micrograms per cubic meterBold data indicates that parameter was detectedShaded data indicates that parameter was detected above levels to be monitored in accordance with the Final NYSDOH CEH BEEI Soil Vapor Intrusion Guidance of October 2006Double-boxed data indicates that parameter was detected above levels to be mitigated in accordance with the Final NYSDOH CEH BEEI Soil Vapor Intrusion Guidance of October 2006NYSDOH - New York State Department of HealthCEH - Center for Environmental HealthBEEI - Bureau of Environmental Exposure Investigation

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Table 6. Summary of Volatile Organic Compounds in Soil Vapor and Indoor and Ambient Air, Inwood Charter School, 3896 10th Avenue, Inwood, New YorkDRAFT

Sample Designation:Sample Date:

Parameter Monitor Mitigate Monitor Mitigate UnitsCarbon Tetrachloride >50 >250 -- -- µg/m3Trichloroethylene (TCE) >50 >250 -- -- µg/m3Vinyl Chloride >50 >250 -- -- µg/m31,1-Dichloroethene -- -- >100 >1000 µg/m3Cis-1,2-Dichloroethylene -- -- >100 >1000 µg/m3Tetrachloroethylene (PCE) -- -- >100 >1000 µg/m31,1,1-Trichloroethane -- -- >100 >1000 µg/m3

1,1,2,2-Tetrachloroethane -- -- -- -- µg/m31,1,2-Trichloro-1,2,2-Trifluoroethane -- -- -- -- µg/m31,1,2-Trichloroethane -- -- -- -- µg/m31,1-Dichloroethane -- -- -- -- µg/m31,2,4-Trichlorobenzene -- -- -- -- µg/m31,2,4-Trimethylbenzene -- -- -- -- µg/m31,2-Dibromoethane (Ethylene Dibromide) -- -- -- -- µg/m31,2-Dichlorobenzene -- -- -- -- µg/m31,2-Dichloroethane -- -- -- -- µg/m31,2-Dichloropropane -- -- -- -- µg/m31,2-Dichlorotetrafluoroethane -- -- -- -- µg/m31,3,5-Trimethylbenzene (Mesitylene) -- -- -- -- µg/m31,3-Butadiene -- -- -- -- µg/m31,3-Dichlorobenzene -- -- -- -- µg/m31,4-Dichlorobenzene -- -- -- -- µg/m31,4-Dioxane (P-Dioxane) -- -- -- -- µg/m32,2,4-Trimethylpentane -- -- -- -- µg/m32-Hexanone -- -- -- -- µg/m34-Ethyltoluene -- -- -- -- µg/m3Acetone -- -- -- -- µg/m3Allyl Chloride (3-Chloropropene) -- -- -- -- µg/m3Benzene -- -- -- -- µg/m3Benzyl Chloride -- -- -- -- µg/m3Bromodichloromethane -- -- -- -- µg/m3Bromoform -- -- -- -- µg/m3Bromomethane -- -- -- -- µg/m3Carbon Disulfide -- -- -- -- µg/m3Chlorobenzene -- -- -- -- µg/m3Chloroethane -- -- -- -- µg/m3Chloroform -- -- -- -- µg/m3

Soil Vapor/Indoor AirMatrix 1

Soil Vapor/Indoor AirMatrix 2

SS-2 SS-3 SV-1 SV-2 SV-310/31/2016 10/31/2016 11/22/2016 11/22/2016 11/22/2016

1.26 U 1.26 U 1.26 U 6.29 U 2.52 U1.07 U 1.07 U 1.07 U 117 2.15 U

0.511 U 0.511 U 0.511 U 2.56 U 1.02 U0.793 U 0.793 U 0.793 U 3.96 U 1.59 U0.793 U 0.793 U 0.793 U 11.3 1.59 U

40.2 1.36 U 93.6 2280 1382.24 3.3 1.82 5.46 U 2.41

1.37 U 1.37 U 1.37 U 6.87 U 2.75 U1.53 U 1.53 U 1.53 U 7.66 U 3.07 U1.09 U 1.09 U 1.09 U 5.46 U 2.18 U

0.809 U 0.809 U 0.809 U 4.05 U 1.62 U1.48 U 1.48 U 1.48 U 7.42 U 2.97 U

0.983 U 8.7 12.1 47.1 1.97 U1.54 U 1.54 U 1.54 U 7.69 U 3.07 U1.2 U 1.2 U 1.2 U 6.01 U 2.4 U

0.809 U 0.809 U 0.809 U 4.05 U 1.62 U0.924 U 0.924 U 0.924 U 4.62 U 1.85 U

1.4 U 1.4 U 1.4 U 6.99 U 2.8 U0.983 U 2.22 7.28 8.46 1.97 U0.442 U 0.473 0.586 2.21 U 0.885 U

1.2 U 1.2 U 1.2 U 6.01 U 2.4 U1.2 U 1.2 U 1.2 U 6.01 U 2.4 U

0.721 U 0.721 U 0.721 U 3.6 U 1.44 U0.934 U 7.61 9.29 4.67 U 1.87 U0.82 U 0.82 U 0.82 U 4.1 U 1.64 U

0.983 U 2.31 2.06 7.33 1.97 U7.39 35.2 82.7 11.9 U 4.75 U

0.626 U 0.626 U 0.626 U 3.13 U 1.25 U0.891 6.55 6.71 3.19 U 1.28 U1.04 U 1.04 U 1.04 U 5.18 U 2.07 U1.34 U 1.34 U 1.34 U 6.7 U 27.72.07 U 2.07 U 2.07 U 10.3 U 4.14 U

0.777 U 0.777 U 0.777 U 3.88 U 1.55 U1.67 2.45 6.01 3.11 U 1.25 U

0.921 U 0.921 U 0.921 U 4.61 U 1.84 U0.528 U 0.528 U 0.528 U 2.64 U 1.06 U0.977 U 0.977 U 3.44 71.3 441

ROUX ASSOCIATES, INC. Page 3 of 8 2842.0001Y.103/WKB

Table 6. Summary of Volatile Organic Compounds in Soil Vapor and Indoor and Ambient Air, Inwood Charter School, 3896 10th Avenue, Inwood, New YorkDRAFT

Sample Designation:Sample Date:

Parameter Monitor Mitigate Monitor Mitigate Units

Soil Vapor/Indoor AirMatrix 1

Soil Vapor/Indoor AirMatrix 2

Chloromethane -- -- -- -- µg/m3Cis-1,3-Dichloropropene -- -- -- -- µg/m3Cyclohexane -- -- -- -- µg/m3Dibromochloromethane -- -- -- -- µg/m3Dichlorodifluoromethane -- -- -- -- µg/m3Ethanol -- -- -- -- µg/m3Ethyl Acetate -- -- -- -- µg/m3Ethylbenzene -- -- -- -- µg/m3Hexachlorobutadiene -- -- -- -- µg/m3Isopropanol -- -- -- -- µg/m3m,p-Xylene -- -- -- -- µg/m3Methyl Ethyl Ketone (2-Butanone) -- -- -- -- µg/m3Methyl Isobutyl Ketone (4-Methyl-2-Pentanone) -- -- -- -- µg/m3Methylene Chloride -- -- -- -- µg/m3N-Heptane -- -- -- -- µg/m3N-Hexane -- -- -- -- µg/m3O-Xylene (1,2-Dimethylbenzene) -- -- -- -- µg/m3Styrene -- -- -- -- µg/m3Tert-Butyl Alcohol -- -- -- -- µg/m3Tert-Butyl Methyl Ether -- -- -- -- µg/m3Tetrahydrofuran -- -- -- -- µg/m3Toluene -- -- -- -- µg/m3Trans-1,2-Dichloroethene -- -- -- -- µg/m3Trans-1,3-Dichloropropene -- -- -- -- µg/m3Trichlorofluoromethane -- -- -- -- µg/m3Vinyl Bromide -- -- -- -- µg/m3

J - Estimated valueU - Indicates that the compound was analyzed for but not detectedug/m3 - Micrograms per cubic meterBold data indicates that parameter was detectedShaded data indicates that parameter was detected above levels to be monitored in accordance with the Final NYSDOH CEH BEEI Soil Vapor Intrusion Guidance of October 2006Double-boxed data indicates that parameter was detected above levels to be mitigated in accordance with the Final NYSDOH CEH BEEI Soil Vapor Intrusion Guidance of October 2006NYSDOH - New York State Department of HealthCEH - Center for Environmental HealthBEEI - Bureau of Environmental Exposure Investigation

SS-2 SS-3 SV-1 SV-2 SV-310/31/2016 10/31/2016 11/22/2016 11/22/2016 11/22/2016

0.413 U 0.413 U 0.574 2.07 U 0.826 U0.908 U 0.908 U 0.908 U 4.54 U 1.82 U0.792 29.7 3.89 3.44 U 1.38 U1.7 U 1.7 U 1.7 U 8.52 U 3.41 U1.81 1.74 2.76 4.94 U 3.45

9.42 U 129 9.42 U 47.1 U 18.8 U1.8 U 5.98 1.8 U 9.01 U 3.6 U

0.869 U 5.91 5.95 26 1.74 U2.13 U 2.13 U 2.13 U 10.7 U 4.27 U1.23 U 81.9 1.23 U 6.15 U 2.46 U1.74 U 21.7 26 104 3.47 U1.47 U 4.6 10.2 7.37 U 2.95 U2.05 U 2.05 U 5.49 10.2 U 4.1 U1.74 U 1.74 U 1.74 U 8.69 U 3.47 U

1.1 12.6 14.9 4.1 U 1.64 U0.945 6.1 49.3 3.52 U 1.41 U

0.869 U 7.86 13.8 40.1 1.74 U0.852 U 1 0.852 U 4.26 U 1.7 U1.52 U 1.52 U 3.09 7.58 U 5.18

0.721 U 0.721 U 0.721 U 3.61 U 1.44 U1.47 U 1.47 U 1.47 U 7.37 U 2.95 U3.45 28.2 18.5 190 1.78

0.793 U 1.1 0.793 U 3.96 U 1.59 U0.908 U 0.908 U 0.908 U 4.54 U 1.82 U1.12 U 1.31 1.28 5.62 U 2.83

0.874 U 0.874 U 0.874 U 4.37 U 1.75 U

ROUX ASSOCIATES, INC. Page 4 of 8 2842.0001Y.103/WKB

Table 6. Summary of Volatile Organic Compounds in Soil Vapor and Indoor and Ambient Air, Inwood Charter School, 3896 10th Avenue, Inwood, New YorkDRAFT

Sample Designation:Sample Date:

Parameter Monitor Mitigate Monitor Mitigate UnitsCarbon Tetrachloride >50 >250 -- -- µg/m3Trichloroethylene (TCE) >50 >250 -- -- µg/m3Vinyl Chloride >50 >250 -- -- µg/m31,1-Dichloroethene -- -- >100 >1000 µg/m3Cis-1,2-Dichloroethylene -- -- >100 >1000 µg/m3Tetrachloroethylene (PCE) -- -- >100 >1000 µg/m31,1,1-Trichloroethane -- -- >100 >1000 µg/m3

1,1,2,2-Tetrachloroethane -- -- -- -- µg/m31,1,2-Trichloro-1,2,2-Trifluoroethane -- -- -- -- µg/m31,1,2-Trichloroethane -- -- -- -- µg/m31,1-Dichloroethane -- -- -- -- µg/m31,2,4-Trichlorobenzene -- -- -- -- µg/m31,2,4-Trimethylbenzene -- -- -- -- µg/m31,2-Dibromoethane (Ethylene Dibromide) -- -- -- -- µg/m31,2-Dichlorobenzene -- -- -- -- µg/m31,2-Dichloroethane -- -- -- -- µg/m31,2-Dichloropropane -- -- -- -- µg/m31,2-Dichlorotetrafluoroethane -- -- -- -- µg/m31,3,5-Trimethylbenzene (Mesitylene) -- -- -- -- µg/m31,3-Butadiene -- -- -- -- µg/m31,3-Dichlorobenzene -- -- -- -- µg/m31,4-Dichlorobenzene -- -- -- -- µg/m31,4-Dioxane (P-Dioxane) -- -- -- -- µg/m32,2,4-Trimethylpentane -- -- -- -- µg/m32-Hexanone -- -- -- -- µg/m34-Ethyltoluene -- -- -- -- µg/m3Acetone -- -- -- -- µg/m3Allyl Chloride (3-Chloropropene) -- -- -- -- µg/m3Benzene -- -- -- -- µg/m3Benzyl Chloride -- -- -- -- µg/m3Bromodichloromethane -- -- -- -- µg/m3Bromoform -- -- -- -- µg/m3Bromomethane -- -- -- -- µg/m3Carbon Disulfide -- -- -- -- µg/m3Chlorobenzene -- -- -- -- µg/m3Chloroethane -- -- -- -- µg/m3Chloroform -- -- -- -- µg/m3

Soil Vapor/Indoor AirMatrix 1

Soil Vapor/Indoor AirMatrix 2

SV-4 SV-5 SV-6 SV-7 SV-811/22/2016 11/22/2016 12/15/2016 12/15/2016 12/15/2016

1.26 U 1.26 U 6.29 U 2.52 U 1.26 U1.07 U 1.07 U 76.9 17 1.07 U

0.511 U 0.511 U 2.56 U 1.02 U 0.511 U0.793 U 0.793 U 3.96 U 1.59 U 0.793 U0.793 U 0.793 U 4.68 1.59 U 0.793 U

8.34 1.38 1510 821 18.81.09 U 11 5.46 U 2.18 U 10.1

1.37 U 1.37 U 6.87 U 2.75 U 1.37 U1.53 U 1.53 U 7.66 U 3.07 U 1.53 U1.09 U 1.09 U 5.46 U 2.18 U 1.09 U

0.809 U 0.809 U 4.05 U 1.62 U 0.809 U1.48 U 1.48 U 7.42 U 2.97 U 1.48 U

0.983 U 2.19 4.92 U 1.97 U 0.9931.54 U 1.54 U 7.69 U 3.07 U 1.54 U1.2 U 1.2 U 6.01 U 2.4 U 1.2 U

0.809 U 0.809 U 4.05 U 1.62 U 0.809 U0.924 U 0.924 U 4.62 U 1.85 U 0.924 U

1.4 U 1.4 U 6.99 U 2.8 U 1.4 U0.983 U 0.983 U 4.92 U 1.97 U 0.983 U0.442 U 0.907 2.21 U 0.885 U 0.606

1.2 U 1.2 U 6.01 U 2.4 U 1.2 U1.97 1.2 U 6.01 U 2.4 U 1.2 U

0.721 U 0.721 U 3.6 U 1.44 U 0.721 U0.934 U 9.53 4.67 U 1.87 U 1.120.82 U 0.82 U 4.1 U 3.89 0.82 U

0.983 U 0.983 U 4.92 U 1.97 U 0.983 U3.87 47.5 19 8.84 9.36

0.626 U 0.626 U 3.13 U 1.25 U 0.626 U1.29 7.95 3.19 U 1.32 1.76

1.04 U 1.04 U 5.18 U 2.07 U 1.04 U1.34 U 1.34 U 6.7 U 28.6 3.662.07 U 2.07 U 10.3 U 4.14 U 2.07 U

0.777 U 0.777 U 3.88 U 1.55 U 0.777 U0.623 U 9.65 3.11 U 1.25 U 0.990.921 U 0.921 U 4.61 U 1.84 U 0.921 U0.528 U 0.528 U 2.64 U 1.06 U 0.528 U

1.06 0.977 U 75.2 256 112

ROUX ASSOCIATES, INC. Page 5 of 8 2842.0001Y.103/WKB

Table 6. Summary of Volatile Organic Compounds in Soil Vapor and Indoor and Ambient Air, Inwood Charter School, 3896 10th Avenue, Inwood, New YorkDRAFT

Sample Designation:Sample Date:

Parameter Monitor Mitigate Monitor Mitigate Units

Soil Vapor/Indoor AirMatrix 1

Soil Vapor/Indoor AirMatrix 2

Chloromethane -- -- -- -- µg/m3Cis-1,3-Dichloropropene -- -- -- -- µg/m3Cyclohexane -- -- -- -- µg/m3Dibromochloromethane -- -- -- -- µg/m3Dichlorodifluoromethane -- -- -- -- µg/m3Ethanol -- -- -- -- µg/m3Ethyl Acetate -- -- -- -- µg/m3Ethylbenzene -- -- -- -- µg/m3Hexachlorobutadiene -- -- -- -- µg/m3Isopropanol -- -- -- -- µg/m3m,p-Xylene -- -- -- -- µg/m3Methyl Ethyl Ketone (2-Butanone) -- -- -- -- µg/m3Methyl Isobutyl Ketone (4-Methyl-2-Pentanone) -- -- -- -- µg/m3Methylene Chloride -- -- -- -- µg/m3N-Heptane -- -- -- -- µg/m3N-Hexane -- -- -- -- µg/m3O-Xylene (1,2-Dimethylbenzene) -- -- -- -- µg/m3Styrene -- -- -- -- µg/m3Tert-Butyl Alcohol -- -- -- -- µg/m3Tert-Butyl Methyl Ether -- -- -- -- µg/m3Tetrahydrofuran -- -- -- -- µg/m3Toluene -- -- -- -- µg/m3Trans-1,2-Dichloroethene -- -- -- -- µg/m3Trans-1,3-Dichloropropene -- -- -- -- µg/m3Trichlorofluoromethane -- -- -- -- µg/m3Vinyl Bromide -- -- -- -- µg/m3

J - Estimated valueU - Indicates that the compound was analyzed for but not detectedug/m3 - Micrograms per cubic meterBold data indicates that parameter was detectedShaded data indicates that parameter was detected above levels to be monitored in accordance with the Final NYSDOH CEH BEEI Soil Vapor Intrusion Guidance of October 2006Double-boxed data indicates that parameter was detected above levels to be mitigated in accordance with the Final NYSDOH CEH BEEI Soil Vapor Intrusion Guidance of October 2006NYSDOH - New York State Department of HealthCEH - Center for Environmental HealthBEEI - Bureau of Environmental Exposure Investigation

SV-4 SV-5 SV-6 SV-7 SV-811/22/2016 11/22/2016 12/15/2016 12/15/2016 12/15/2016

1.34 0.413 U 2.07 U 0.826 U 0.413 U0.908 U 0.908 U 4.54 U 1.82 U 0.908 U0.688 U 8.95 3.44 U 1.38 U 0.805

1.7 U 1.7 U 8.52 U 3.41 U 1.7 U2.69 3.1 4.94 U 2.32 3.17

9.42 U 17 47.1 U 18.8 U 9.42 U1.8 U 5.62 12.5 3.6 U 10.8

0.869 U 1.5 4.34 U 1.74 U 0.869 U2.13 U 2.13 U 10.7 U 4.27 U 2.13 U1.23 U 2.83 7.92 4.97 5.951.74 U 5.6 8.69 U 3.47 U 1.74 U1.62 10.5 13.5 4.81 4.45

2.05 U 3.72 10.2 U 4.1 U 2.05 U1.74 U 1.74 U 8.69 U 3.47 U 1.74 U0.82 U 15.9 4.1 U 1.64 U 0.82 U0.715 121 3.52 U 1.41 U 1.04

0.869 U 2 4.34 U 1.74 U 0.869 U0.852 U 0.852 U 4.26 U 1.7 U 0.852 U1.52 U 2.73 7.58 U 6.18 4.09

0.721 U 0.721 U 3.61 U 1.44 U 0.721 U1.47 U 1.47 U 7.37 U 2.95 U 1.47 U1.87 11 7.84 3.28 3.73

0.793 U 0.793 U 3.96 U 1.59 U 0.793 U0.908 U 0.908 U 4.54 U 1.82 U 0.908 U

1.24 1.66 5.62 U 2.25 U 5.60.874 U 0.874 U 4.37 U 1.75 U 0.874 U

ROUX ASSOCIATES, INC. Page 6 of 8 2842.0001Y.103/WKB

Table 6. Summary of Volatile Organic Compounds in Soil Vapor and Indoor and Ambient Air, Inwood Charter School, 3896 10th Avenue, Inwood, New YorkDRAFT

Sample Designation:Sample Date:

Parameter Monitor Mitigate Monitor Mitigate UnitsCarbon Tetrachloride >50 >250 -- -- µg/m3Trichloroethylene (TCE) >50 >250 -- -- µg/m3Vinyl Chloride >50 >250 -- -- µg/m31,1-Dichloroethene -- -- >100 >1000 µg/m3Cis-1,2-Dichloroethylene -- -- >100 >1000 µg/m3Tetrachloroethylene (PCE) -- -- >100 >1000 µg/m31,1,1-Trichloroethane -- -- >100 >1000 µg/m3

1,1,2,2-Tetrachloroethane -- -- -- -- µg/m31,1,2-Trichloro-1,2,2-Trifluoroethane -- -- -- -- µg/m31,1,2-Trichloroethane -- -- -- -- µg/m31,1-Dichloroethane -- -- -- -- µg/m31,2,4-Trichlorobenzene -- -- -- -- µg/m31,2,4-Trimethylbenzene -- -- -- -- µg/m31,2-Dibromoethane (Ethylene Dibromide) -- -- -- -- µg/m31,2-Dichlorobenzene -- -- -- -- µg/m31,2-Dichloroethane -- -- -- -- µg/m31,2-Dichloropropane -- -- -- -- µg/m31,2-Dichlorotetrafluoroethane -- -- -- -- µg/m31,3,5-Trimethylbenzene (Mesitylene) -- -- -- -- µg/m31,3-Butadiene -- -- -- -- µg/m31,3-Dichlorobenzene -- -- -- -- µg/m31,4-Dichlorobenzene -- -- -- -- µg/m31,4-Dioxane (P-Dioxane) -- -- -- -- µg/m32,2,4-Trimethylpentane -- -- -- -- µg/m32-Hexanone -- -- -- -- µg/m34-Ethyltoluene -- -- -- -- µg/m3Acetone -- -- -- -- µg/m3Allyl Chloride (3-Chloropropene) -- -- -- -- µg/m3Benzene -- -- -- -- µg/m3Benzyl Chloride -- -- -- -- µg/m3Bromodichloromethane -- -- -- -- µg/m3Bromoform -- -- -- -- µg/m3Bromomethane -- -- -- -- µg/m3Carbon Disulfide -- -- -- -- µg/m3Chlorobenzene -- -- -- -- µg/m3Chloroethane -- -- -- -- µg/m3Chloroform -- -- -- -- µg/m3

Soil Vapor/Indoor AirMatrix 1

Soil Vapor/Indoor AirMatrix 2

SV-9 SV-10 SV-10 AMB SV-11 SV-11 AMB12/15/2016 02/14/2017 02/14/2017 02/14/2017 02/14/2017

6.29 U 0.566 0.566 0.522 0.54712.6 0.107 U 0.107 U 0.258 0.107 U

2.56 U 0.051 U 0.051 U 0.051 U 0.051 U3.96 U 0.079 U 0.079 U 0.079 U 0.079 U3.96 U 0.079 U 0.079 U 0.079 U 0.079 U1260 0.231 0.38 1.59 0.387

5.46 U 0.109 U 0.109 U 0.109 U 0.109 U

6.87 U 1.37 U 1.37 U 1.37 U 1.37 U7.66 U 1.53 U 1.53 U 1.53 U 1.53 U5.46 U 1.09 U 1.09 U 1.09 U 1.09 U4.05 U 0.809 U 0.809 U 0.809 U 0.809 U7.42 U 1.48 U 1.48 U 1.48 U 1.48 U4.92 U 11 20.6 2.72 4.157.69 U 1.54 U 1.54 U 1.54 U 1.54 U6.01 U 1.2 U 1.2 U 1.2 U 1.2 U4.05 U 0.809 U 0.809 U 0.809 U 0.809 U4.62 U 0.924 U 0.924 U 0.924 U 0.924 U6.99 U 1.4 U 1.4 U 1.4 U 1.4 U4.92 U 3.29 6 0.983 U 1.172.21 U 4.73 21 0.442 U 1.736.01 U 1.2 U 1.2 U 1.2 U 1.2 U6.01 U 1.2 U 1.2 U 1.2 U 1.2 U3.6 U 0.721 U 0.721 U 0.721 U 0.721 U

4.67 U 40.2 53.7 1.32 17.94.1 U 0.82 U 0.82 U 1.18 0.82 U

4.92 U 3.41 5.21 0.983 U 1.1820.7 2.38 U 2.38 U 5.63 2.38 U

3.13 U 0.626 U 0.626 U 0.626 U 0.626 U3.19 U 40.9 53 1.85 8.55.18 U 1.04 U 1.04 U 1.04 U 1.04 U65.5 1.34 U 1.34 U 1.34 U 1.34 U

10.3 U 2.07 U 2.07 U 2.07 U 2.07 U3.88 U 0.777 U 0.777 U 0.777 U 0.777 U3.11 U 0.623 U 0.623 U 0.623 U 0.623 U4.61 U 0.921 U 0.921 U 0.921 U 0.921 U2.64 U 0.528 U 0.528 U 0.528 U 0.528 U

669 0.977 U 0.977 U 4.48 0.977 U

ROUX ASSOCIATES, INC. Page 7 of 8 2842.0001Y.103/WKB

Table 6. Summary of Volatile Organic Compounds in Soil Vapor and Indoor and Ambient Air, Inwood Charter School, 3896 10th Avenue, Inwood, New YorkDRAFT

Sample Designation:Sample Date:

Parameter Monitor Mitigate Monitor Mitigate Units

Soil Vapor/Indoor AirMatrix 1

Soil Vapor/Indoor AirMatrix 2

Chloromethane -- -- -- -- µg/m3Cis-1,3-Dichloropropene -- -- -- -- µg/m3Cyclohexane -- -- -- -- µg/m3Dibromochloromethane -- -- -- -- µg/m3Dichlorodifluoromethane -- -- -- -- µg/m3Ethanol -- -- -- -- µg/m3Ethyl Acetate -- -- -- -- µg/m3Ethylbenzene -- -- -- -- µg/m3Hexachlorobutadiene -- -- -- -- µg/m3Isopropanol -- -- -- -- µg/m3m,p-Xylene -- -- -- -- µg/m3Methyl Ethyl Ketone (2-Butanone) -- -- -- -- µg/m3Methyl Isobutyl Ketone (4-Methyl-2-Pentanone) -- -- -- -- µg/m3Methylene Chloride -- -- -- -- µg/m3N-Heptane -- -- -- -- µg/m3N-Hexane -- -- -- -- µg/m3O-Xylene (1,2-Dimethylbenzene) -- -- -- -- µg/m3Styrene -- -- -- -- µg/m3Tert-Butyl Alcohol -- -- -- -- µg/m3Tert-Butyl Methyl Ether -- -- -- -- µg/m3Tetrahydrofuran -- -- -- -- µg/m3Toluene -- -- -- -- µg/m3Trans-1,2-Dichloroethene -- -- -- -- µg/m3Trans-1,3-Dichloropropene -- -- -- -- µg/m3Trichlorofluoromethane -- -- -- -- µg/m3Vinyl Bromide -- -- -- -- µg/m3

J - Estimated valueU - Indicates that the compound was analyzed for but not detectedug/m3 - Micrograms per cubic meterBold data indicates that parameter was detectedShaded data indicates that parameter was detected above levels to be monitored in accordance with the Final NYSDOH CEH BEEI Soil Vapor Intrusion Guidance of October 2006Double-boxed data indicates that parameter was detected above levels to be mitigated in accordance with the Final NYSDOH CEH BEEI Soil Vapor Intrusion Guidance of October 2006NYSDOH - New York State Department of HealthCEH - Center for Environmental HealthBEEI - Bureau of Environmental Exposure Investigation

SV-9 SV-10 SV-10 AMB SV-11 SV-11 AMB12/15/2016 02/14/2017 02/14/2017 02/14/2017 02/14/2017

2.07 U 0.574 1.55 0.413 U 1.464.54 U 0.908 U 0.908 U 0.908 U 0.908 U3.44 U 6.44 8.64 0.688 U 3.428.52 U 1.7 U 1.7 U 1.7 U 1.7 U4.94 U 2.62 2.47 2.91 2.1747.1 U 111 222 9.42 U 97.69.01 U 1.8 U 1.8 U 1.8 U 1.8 U4.34 U 11.9 15.9 2.45 3.4510.7 U 2.13 U 2.13 U 2.13 U 2.13 U6.15 U 5.33 3.07 1.23 U 3.718.69 U 43.2 61.7 8.77 1321.6 1.47 U 1.53 10.1 1.47 U

10.2 U 2.05 U 2.05 U 2.05 U 2.05 U8.69 U 1.74 U 1.99 1.74 U 1.74 U4.1 U 14.9 17.5 1.7 6.35

3.52 U 22 28.7 1.41 9.974.34 U 14.5 21.1 2.79 4.474.26 U 2.26 3.81 0.852 U 0.852 U7.58 U 1.52 U 1.52 U 1.52 U 1.52 U3.61 U 0.721 U 0.721 U 0.721 U 0.721 U7.37 U 1.47 U 1.47 U 1.47 U 1.47 U3.96 66.7 88.2 13.7 19.4

3.96 U 0.793 U 0.793 U 0.793 U 0.793 U4.54 U 0.908 U 0.908 U 0.908 U 0.908 U5.62 U 1.12 U 1.13 1.2 1.12 U4.37 U 0.874 U 0.874 U 0.874 U 0.874 U

ROUX ASSOCIATES, INC. Page 8 of 8 2842.0001Y.103/WKB

Remedial Action Plan Inwood Academy for Leadership Charter School

108 Cooper Street, New York, New York 10034

REMEDIAL ENGINEERING, P.C. 2842.0001Y.103/CVRS

FIGURES

1. Site Location Map

2. Site Development Plan

3. Surrounding Land Use

4. Soil vapor Sampling Locations and Results

5. Conceptual Sub-Slab Depressurization System Design

6. Composite Cover System Design

NY

QUADRANGLE LOCATION

SOURCE:USGS; Yonkers, NY-NJ (2016)and Central Park, NY-NJ (2016)7.5 Minute Topographic Quadrangles

V:\

CA

D\P

RO

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\2842Y

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Title:

Prepared for:

Compiled by: J.G. 28DEC16

Prepared by: J.A.D. AS SHOWN

Project Mgr.: J.G.

File: 2842.0001Y103.02.CDR

2842.0001Y000Project No.:

Scale:

Date: FIGURE

1ROUX ASSOCIATES, INC.

INWOOD ACADEMY FOR LEADERSHIP CHARTER SCHOOL

SITE LOCATION

3896 10TH AVENUENEW YORK, NEW YORK

Environmental Consulting& Management

ROUX

SITE

Source: Esri, DigitalGlobe, GeoEye, i-cubed, Earthstar Geographics,CNES/Airbus DS, USDA, USGS, AEX, Getmapping, Aerogrid, IGN, IGP,swisstopo, and the GIS User Community

Prepared by: A.M.Project Mgr: J.G.

Scale: AS SHOWNProject: 2842.0001Y000

File: 2842.0001Y103.01.mxd

FIGUREROUX 3

INWOOD ACADEMY FORLEADERSHIP CHARTER SCHOOL

SURROUNDING LAND USE3896 10TH AVENUE

NEW YORK, NEW YORK

Title:

Prepared For:

V:\G

IS\Proje

cts\2842Y\0001\103\2842.0001Y103.01.mxd

£40 0 40 80

Feet

Compiled by: A.M. Date: 28DEC16

MIXED RESIDENTIAL AND COMMERCIAL

LegendSITE BOUNDARY

COMMERCIALAND

OFFICE

TRANSPORTATION AND UTILITY

BP / AMOCOFILLINGSTATION

TRANSPORTATION AND

UTILITY

COMMERCIALAND

OFFICE

COMMERCIALAND

OFFICE

AUTO-ELECTRIC REPAIR

PARKING GARAGE

REPORTED LOCATION OF THREE 550-GALLON USTSACCORDING TO SANBORN MAPS

Remedial Action Plan Inwood Academy for Leadership Charter School

108 Cooper Street, New York, New York 10034

REMEDIAL ENGINEERING, P.C. 2842.0001Y.103/CVRS

APPENDICES

A. Soil/Materials Management Plan

B. Construction Health and Safety Plan (to be included in final RAP)

C. Previous Environmental Investigations and Reports (to be included in final RAP)

D. Sub-Slab Depressurization System

Remedial Action Plan Inwood Academy for Leadership Charter School

108 Cooper Street, New York, New York 10034

REMEDIAL ENGINEERING, P.C. 2842.0001Y.103/CVRS

APPENDIX A

Soil/Materials Management Plan

REMEDIAL ENGINEERING, P.C. – 1 – 2842.0001Y.103/APA

APPENDIX A

Soil/Materials Management Plan

1.1 Soil Screening Methods

Visual, olfactory and PID soil screening and assessment will be performed under the

supervision of a Qualified Environmental Professional and will be reported in the Remedial

Closure Report (RCR). Soil screening will be performed during invasive work performed during

the remedy and development phases prior to issuance of the Notice of Satisfaction.

1.2 Stockpile Methods

Excavated soil from suspected areas of contamination (e.g., hot spots, USTs, drains, etc.)

will be stockpiled separately and will be segregated from clean soil and construction materials.

Stockpiles will be used only when necessary and will be removed as soon as practicable. While

stockpiles are in place, they will be inspected daily, and before and after every storm event.

Results of inspections will be recorded in a logbook and maintained at the Site and available for

inspection by OER. Excavated soils will be stockpiled on, at minimum, double layers of 8-mil

minimum sheeting, will be kept covered at all times with appropriately anchored plastic tarps,

and will be routinely inspected. Broken or ripped tarps will be promptly replaced.

All stockpile activities will be compliant with applicable laws and regulations. Soil

stockpile areas will be appropriately graded to control run-off in accordance with applicable laws

and regulations. Stockpiles of excavated soils and other materials shall be located at least of

50 feet from the property boundaries, where possible. Hay bales or equivalent will surround soil

stockpiles except for areas where access by equipment is required. Silt fencing and hay bales

will be used as needed near catch basins, surface waters and other discharge points.

1.3 Characterization of Excavated Materials

Soil/fill or other excavated media that is transported off-Site for disposal will be sampled in

a manner required by the receiving facility, and in compliance with applicable laws and

regulations. Soils proposed for reuse on-Site will be managed as defined in this plan.

REMEDIAL ENGINEERING, P.C. – 2 – 2842.0001Y.103/APA

1.4 Materials Excavation, Load-Out and Departure

The PE/QEP overseeing the remedial action will:

oversee remedial work and the excavation and load-out of excavated material;

ensure that there is a party responsible for the safe execution of invasive and other work performed under this work plan;

ensure that Site development activities and development-related grading cuts will not interfere with, or otherwise impair or compromise the remedial activities proposed in this RAP;

ensure that the presence of utilities and easements on the Site has been investigated and that any identified risks from work proposed under this plan are properly addressed by appropriate parties;

ensure that all loaded outbound trucks are inspected and cleaned if necessary before leaving the Site; and

ensure that all egress points for truck and equipment transport from the Site will be kept clean of Site-derived materials during Site remediation.

Locations where vehicles exit the Site shall be inspected daily for evidence of soil tracking

off premises. Cleaning of the adjacent streets will be performed as needed to maintain a clean

condition with respect to Site-derived materials.

Open and uncontrolled mechanical processing of historical fill and contaminated soil on-Site

will not be performed without prior OER approval.

1.5 Off-Site Materials Transport

Loaded vehicles leaving the Site will comply with all applicable materials transportation

requirements (including appropriate covering, manifests, and placards) in accordance with

applicable laws and regulations, including use of licensed haulers in accordance with 6 NYCRR

Part 364. If loads contain wet material capable of causing leakage from trucks, truck liners will

be used. Queuing of trucks will be performed on-Site, when possible in order to minimize

off-Site disturbance. Off-Site queuing will be minimized.

REMEDIAL ENGINEERING, P.C. – 3 – 2842.0001Y.103/APA

Outbound truck transport routes are in Section 3.8 of the RAP. This routing takes into

account the following factors: (a) limiting transport through residential areas and past sensitive

sites; (b) use of mapped truck routes; (c) minimizing off-Site queuing of trucks entering the

facility; (d) limiting total distance to major highways; (e) promoting safety in access to

highways; and (f) overall safety in transport. To the extent possible, all trucks loaded with Site

materials will travel from the Site using these truck routes. Trucks will not stop or idle in the

neighborhood after leaving the project Site.

1.6 Materials Disposal Off-Site

The following documentation will be established and reported by the PE/QEP for each

disposal destination used in this project to document that the disposal of regulated material

exported from the Site conforms with applicable laws and regulations: (1) a letter from the

PE/QEP or Applicant to each disposal facility describing the material to be disposed and

requesting written acceptance of the material. This letter will state that material to be disposed is

regulated material generated at an environmental remediation Site in New York under a

governmental remediation program. The letter will provide the project identity and the name and

phone number of the PE/QEP or Applicant. The letter will include as an attachment a summary

of all chemical data for the material being transported; and (2) a letter from each disposal facility

stating it is in receipt of the correspondence (1, above) and is approved to accept the material.

These documents will be included in the RCR.

The RCR will include an itemized account of the destination of all material removed from

the Site during this remedial action. Documentation associated with disposal of all material will

include records and approvals for receipt of the material. This information will be presented in

the RCR.

All impacted soil/fill or other waste excavated and removed from the Site will be managed

as regulated material and will be disposed in accordance with applicable laws and regulations.

Historic fill and contaminated soils taken off-Site will be handled as solid waste and will not be

disposed at a Part 360-16 Registration Facility (also known as a Soil Recycling Facility).

REMEDIAL ENGINEERING, P.C. – 4 – 2842.0001Y.103/APA

Waste characterization will be performed for off-Site disposal in a manner required by the

receiving facility and in conformance with its applicable permits. Waste characterization

sampling and analytical methods, sampling frequency, analytical results and QA/QC will be

reported in the RCR. A manifest system for off-Site transportation of exported materials will be

employed. Manifest information will be reported in the RCR. Hazardous wastes derived from

on-Site will be stored, transported, and disposed of in compliance with applicable laws and

regulations.

1.7 Materials Reuse On-Site

Soil and fill that is derived from the property that meets the soil cleanup objectives

established in this plan may be reused on-Site. The soil cleanup objectives for on-Site reuse are

listed in the RAP. “Reuse on-Site” means material that is excavated during the remedy or

development, does not leave the property, and is relocated within the same property and on

comparable soil/fill material, and addressed pursuant to Engineering Controls. The PE/QEP will

ensure that reused materials are segregated from other materials to be exported from the Site and

that procedures defined for material reuse in this RAP are followed. The expected location for

placement of reused material is shown in the RAP.

Organic matter (wood, roots, stumps, etc.) or other waste derived from clearing and

grubbing of the Site will not be buried on-Site. Soil or fill excavated from the site for grading or

other purposes will not be reused within a cover soil layer or within landscaping berms.

1.8 Demarcation

After completion of hotspot removal and any other invasive remedial activities, and prior to

backfilling, the top of the residual soil/fill will be defined by one of three methods: (1) placement

of a demarcation layer. The demarcation layer will consist of geosynthetic fencing or equivalent

material to be placed on the surface of residual soil/fill to provide an observable reference layer.

A description or map of the approximate depth of the demarcation layer will be provided in the

RCR; or (2) a land survey of the top elevation of residual soil/fill before the placement of cover

soils, pavement and associated sub-soils, or other materials or structures or, (3) all materials

beneath the approved cover will be considered impacted and subject to site management after the

REMEDIAL ENGINEERING, P.C. – 5 – 2842.0001Y.103/APA

remedy is complete. Demarcation may be established by one or any combination of these three

methods. As appropriate, a map showing the method of demarcation for the Site and all

associated documentation will be presented in the RCR. This demarcation will constitute the top

of the site management horizon.

1.9 Import of Backfill Soil from Off-Site Sources

This Section presents the requirements for imported fill materials to be used below the cover

layer and within the clean soil cover layer. All imported soils will meet OER-approved backfill

and cover soil quality objectives for this Site. The backfill and cover soil quality objectives are

listed in the RAP.

A process will be established to evaluate sources of backfill and cover soil to be imported to

the Site, and will include an examination of source location, current and historical use(s), and

any applicable documentation. Material from industrial sites, spill sites, environmental

remediation sites or other potentially contaminated sites will not be imported to the Site.

The following potential sources may be used pending attainment of backfill and cover soil

quality objectives:

Clean soil from construction projects at non-industrial sites in compliance with applicable laws and regulations;

Clean soil from roadway or other transportation-related projects in compliance with applicable laws and regulations; and

Clean recycled concrete aggregate (RCA) from facilities permitted or registered by the regulations of NYS DEC.

All materials received for import to the Site will be approved by a PE/QEP and will be in

compliance with provisions in this RAP. The RCR will report the source of the fill, evidence

that an inspection was performed on the source, chemical sampling results, frequency of testing,

and a Site map indicating the locations where backfill or soil cover was placed.

REMEDIAL ENGINEERING, P.C. – 6 – 2842.0001Y.103/APA

Source Screening and Testing

Inspection of imported fill material will include visual, olfactory and PID screening for

evidence of contamination. Materials imported to the Site will be subject to inspection, as

follows:

Trucks with imported fill material will be in compliance with applicable laws and regulations and will enter the Site at designated locations;

The PE/QEP is responsible to ensure that every truck load of imported material is inspected for evidence of contamination; and

Fill material will be free of solid waste including pavement materials, debris, stumps, roots, and other organic matter, as well as ashes, oil, perishables or foreign matter.

Composite samples of imported material will be taken at a minimum frequency of one

sample for every 500 cubic yards of material. Once it is determined that the fill material meets

imported backfill or cover soil chemical requirements and is non-hazardous, and lacks petroleum

contamination, the material will be loaded onto trucks for delivery to the Site.

Recycled concrete aggregate (RCA) will be imported from facilities permitted or registered

by NYSDEC. Facilities will be identified in the RCR. A PE/QEP is responsible to ensure that

the facility is compliant with 6NYCRR Part 360 registration and permitting requirements for the

period of acquisition of RCA. RCA imported from compliant facilities will not require

additional testing, unless required by NYSDEC under its terms for operation of the facility.

RCA imported to the Site must be derived from recognizable and uncontaminated concrete.

RCA material is not acceptable for, and will not be used as cover material.

1.10 Fluids Management

All liquids to be removed from the Site, including dewatering fluids, will be handled,

transported and disposed in accordance with applicable laws and regulations. Liquids discharged

into the New York City sewer system will receive prior approval by New York City Department

of Environmental Protection (NYC DEP). The NYC DEP regulates discharges to the New York

City sewers under Title 15, Rules of the City of New York Chapter 19. Discharge to the

New York City sewer system will require an authorization and sampling data demonstrating that

the groundwater meets the City’s discharge criteria. The dewatering fluid will be pretreated as

REMEDIAL ENGINEERING, P.C. – 7 – 2842.0001Y.103/APA

necessary to meet the NYC DEP discharge criteria. If discharge to the City sewer system is not

appropriate, the dewatering fluids will be managed by transportation and disposal at an off-Site

treatment facility.

Discharge of water generated during remedial construction to surface waters (i.e. a stream or

river) is prohibited without a SPDES permit issued by New York State Department of

Environmental Conservation.

1.11 Storm-water Pollution Prevention

Applicable laws and regulations pertaining to storm-water pollution prevention will be

addressed during the remedial program. Erosion and sediment control measures identified in this

RAP (silt fences and barriers, and hay bale checks) will be installed around the entire perimeter

of the remedial construction area and inspected once a week and after every storm event to

ensure that they are operating appropriately. Discharge locations will be inspected to determine

whether erosion control measures are effective in preventing significant impacts to receptors.

Results of inspections will be recorded in a logbook and maintained at the Site and available for

inspection by OER. All necessary repairs shall be made immediately. Accumulated sediments

will be removed as required to keep the barrier and hay bale check functional. Undercutting or

erosion of the silt fence anchor will be repaired immediately with appropriate backfill materials.

Manufacturer's recommendations will be followed for replacing silt fencing damaged due

to weathering.

1.12 Contingency Plan

This contingency plan is developed for the remedial construction to address the discovery of

unknown structures or contaminated media during excavation. Identification of unknown

contamination source areas during invasive Site work will be promptly communicated to OER’s

Project Manager. Petroleum spills will be reported to the NYS DEC Spill Hotline. These

findings will be included in the daily report. If previously unidentified contaminant sources are

found during on-Site remedial excavation or development-related excavation, sampling will be

performed on contaminated source material and surrounding soils and reported to OER.

REMEDIAL ENGINEERING, P.C. – 8 – 2842.0001Y.103/APA

Chemical analytical testing will be performed for Full List volatiles and semi-volatiles,

pesticides/PCBs, and TAL metals, as appropriate.

1.13 Odor, Dust and Nuisance Control

Odor Control

All necessary means will be employed to prevent on- and off-Site odor nuisances. At a

minimum, procedures will include: (a) limiting the area of open excavations; (b) shrouding open

excavations with tarps and other covers; and (c) use of foams to cover exposed odorous soils.

If odors develop and cannot otherwise be controlled, additional means to eliminate odor

nuisances will include: (d) direct load-out of soils to trucks for off-Site disposal; and (e) use of

chemical odorants in spray or misting systems.

This odor control plan is capable of controlling emissions of nuisance odors. If nuisance

odors are identified, work will be halted and the source of odors will be identified and corrected.

Work will not resume until all nuisance odors have been abated. OER will be notified of all odor

complaint events. Implementation of all odor controls, including halt of work, will be the

responsibility of the PE/QEP’s certifying the RCR.

Dust Control

Dust management during invasive on-Site work will include, at a minimum:

Use of a dedicated water spray methodology for roads, excavation areas and stockpiles.

Use of properly anchored tarps to cover stockpiles.

Exercise extra care during dry and high-wind periods.

Use of gravel or recycled concrete aggregate on egress and other roadways to provide a clean and dust-free road surface.

This dust control plan is capable of controlling emissions of dust. If nuisance dust emissions

are identified, work will be halted and the source of dusts will be identified and corrected.

Work will not resume until all nuisance dust emissions have been abated. OER will be notified

of all dust complaint events. Implementation of all dust controls, including halt of work, will be

the responsibility of the PE/QEP’s responsible for certifying the Remedial Closure Report.

REMEDIAL ENGINEERING, P.C. – 9 – 2842.0001Y.103/APA

Other Nuisances

Noise control will be exercised during the remedial program. All remedial work will

conform, at a minimum, to NYC noise control standards.

Rodent control will be provided, during Site clearing and grubbing, and during the remedial

program, as necessary, to prevent nuisances.

1.14 Import of Clean Cover

No soil is anticipated to have to be imported into the Site for use as clean cover. If required, all

imported soil will be uncontaminated, clean soil that meets the lesser of the appropriate

NYSDEC 6 NYCRR Part 375-6.8(a) Unrestricted Use SCOs and the NYSDEC 6 NYCRR Part

375-6.8 groundwater protection SCOs.

The imported uncontaminated, clean soil cover will be from an approved source/facility and will

be evaluated by the PE/QEP to ensure:

1. That a segregated stockpile is properly maintained at the source and will not be comingled with any other material prior to importing and grading the clean soil material at the Site;

2. That the material does not include any solid waste, including construction and demolition material, as it’s prohibited;

3. That screening for evidence of contamination by visual, olfactory and PID soil screening practices prior to testing at the source as well as upon importing to the Site for grading is completed; and

4. That a maximum five-part composite sample will be collected from the segregated stockpile at the source at a minimum frequency of one sample per 250 cubic yards and analyzed for the following Full List parameters:

VOCs by EPA Method 8260C (rev. 2006)

SVOCs by EPA Method 8270D (rev. 2007)

Pesticides by EPA Method 8081B (rev. 2000)

PCBs by EPA Method 8082A (rev. 2000)

TAL Metals by EPA Method 6010C (rev. 2007)

REMEDIAL ENGINEERING, P.C. – 10 – 2842.0001Y.103/APA

Upon receipt of the segregated stockpile analytical results collected at the source, a Clean

Soil Sampling Report will be submitted to OER for review/approval prior to importing. The

report will include the following:

1. Summary of number of samples collected and analyzed, tabulated data and comparison to the selected Site Use SCOs;

2. Analytical data sheets and chain of custody documentation;

3. Summary of tons (cubic yards);

4. Photographs from the segregated stockpile at the source with sample point locations identified;

5. An affidavit from the source/facility on company letterhead stating that the segregated stockpile has been properly maintained at the source and complies with the requirements listed above; and

6. A copy of source/facility NYSDEC permit.

A highly visible demarcation barrier (i.e. orange geo-synthetic material or equivalent) will

be installed beneath the clean soil/fill surface cover. Upon importing and grading the OER

approved clean soil cover on top of a highly visible demarcation barrier, the following

documentation will be presented in the Final Remedial Closure Report:

1. Copies of purchase invoices;

2. Truck transportation slips from the source to the Site;

3. Confirmation of the number of tons (number cubic yards) of OER approved clean soil cover material imported and graded at the site on top of highly visible demarcation barrier;

4. Site plan depicting all areas where the OER approved clean soil cover has been placed; and

5. Photographs documenting the importing and grading of the OER approved clean soil cover across the site with the underlying highly visible demarcation barrier (i.e. orange geo-synthetic material or equivalent).

Remedial Action Plan Inwood Academy for Leadership Charter School

108 Cooper Street, New York, New York 10034

REMEDIAL ENGINEERING, P.C. 2842.0001Y.103/CVRS

APPENDIX B

Construction Health and Safety Plan

(to be included in final RAP)

Remedial Action Plan Inwood Academy for Leadership Charter School

108 Cooper Street, New York, New York 10034

REMEDIAL ENGINEERING, P.C. 2842.0001Y.103/CVRS

APPENDIX C

Previous Environmental Investigations and Reports

(to be included in final RAP)

Remedial Action Plan Inwood Academy for Leadership Charter School

108 Cooper Street, New York, New York 10034

REMEDIAL ENGINEERING, P.C. 2842.0001Y.103/CVRS

APPENDIX D

Sub-Slab Depressurization System

ROUX ASSOCIATES, INC. 2842.0001Y.103/APD

Soil Vapor Sampling Form

Inwood Charter School

3896 10th Ave, Inwood, New York

Date: 10/31/2016 Time: 0700

Weather : 40 degrees F, partly cloudy

Temperature: 40F Humidity: 65%

Wind Magnitude: 8mph Wind Direction: S

Barometric Pressure: 30.11" Precipitation: none

Sampling Team: Joe Gavin, Kailani Acosta

Sampling Location: IA-1

Site Condition (i.e. any adjacent questionable facilities, vent pipes, tanks, etc. and what type of basements are present)

Parking garage in use, with various concrete filled holes in asphalt.

N/A

Sampling Depth: 6-8 feet below land surface

Sealed with bentonite: N/A

Apparent Moisture Content: N/A

Purge Rate: -- Must be less than 0.2 L/min

Purge Time: --

Helium Rate at enclosure: --

Helium Rate from sample tubing: -- Is this rate <10% of the rate at the enclosure

*No helium test performed, canister leaked and was empty.

Yes

Starting Pressure: -30.5 in. of Hg

Starting Time: 0829

Ending Time: 1629

Ending Pressure: -7 in. of Hg

Summa Canister Identification #: 231

Flow Regulator ID # 379

Sample ID # IA-1

Time 8 hour

Analysis

Laboratory Alpha Analytical, Inc

VOCs (TO-15)

Prior to commencing the sampling activity, remove the brass cap from the end of the sample tubing and fit a new brass hose barb fitting onto the sample tubing.

Calibrate the Helium detection meter

Utility Clearance Completed:

If the Helium readings have a greater ratio than 10% the seals should be rechecked and the tracer gas should be reapplied.

Once the tracer gas screening procedures are completed and no short-circuiting is determined to be present at the location the soil vapor sample can be collected in a lab certified clean summa canister at a rate less than 0.2 L/min.

Is the Summa Canister Certified Clean and within the proper holding time ?

ROUX ASSOCIATES, INC. 2842.0001Y.103/APD

Soil Vapor Sampling Form

Inwood Charter School

3896 10th Ave, Inwood, New York

Date: 10/31/2016 Time: 0700

Weather : 40 degrees F, partly cloudy

Temperature: 40F Humidity: 65%

Wind Magnitude: 8mph Wind Direction: S

Barometric Pressure: 30.11" Precipitation: none

Sampling Team: Joe Gavin, Kailani Acosta

Sampling Location: SS-1

Site Condition (i.e. any adjacent questionable facilities, vent pipes, tanks, etc. and what type of basements are present)

Parking garage in use, with various concrete filled holes in asphalt.

N/A

Sampling Depth: 6-8 feet below land surface

Sealed with bentonite: N/A

Apparent Moisture Content: N/A

Purge Rate: -- Must be less than 0.2 L/min

Purge Time: --

Helium Rate at enclosure: --

Helium Rate from sample tubing: -- Is this rate <10% of the rate at the enclosure

*No helium test performed, canister leaked and was empty.

Yes

Starting Pressure: -30.2 in. of Hg

Starting Time: 0822

Ending Time: 1632

Ending Pressure: -9 in. of Hg

Summa Canister Identification #: 2240

Flow Regulator ID # 579

Sample ID # SS-1

Time 8 hour

Analysis

Laboratory Alpha Analytical, Inc

VOCs (TO-15)

Prior to commencing the sampling activity, remove the brass cap from the end of the sample tubing and fit a new brass hose barb fitting onto the sample tubing.

Calibrate the Helium detection meter

Utility Clearance Completed:

If the Helium readings have a greater ratio than 10% the seals should be rechecked and the tracer gas should be reapplied.

Once the tracer gas screening procedures are completed and no short-circuiting is determined to be present at the location the soil vapor sample can be collected in a lab certified clean summa canister at a rate less than 0.2 L/min.

Is the Summa Canister Certified Clean and within the proper holding time ?

ROUX ASSOCIATES, INC. 2842.0001Y.103/APD

Soil Vapor Sampling Form

Inwood Charter School

3896 10th Ave, Inwood, New York

Date: 10/31/2016 Time: 0700

Weather : 40 degrees F, partly cloudy

Temperature: 40F Humidity: 65%

Wind Magnitude: 8mph Wind Direction: S

Barometric Pressure: 30.11" Precipitation: none

Sampling Team: Joe Gavin, Kailani Acosta

Sampling Location: SS-2

Site Condition (i.e. any adjacent questionable facilities, vent pipes, tanks, etc. and what type of basements are present)

Parking garage in use, with various concrete filled holes in asphalt.

N/A

Sampling Depth: 6-8 feet below land surface

Sealed with bentonite: N/A

Apparent Moisture Content: N/A

Purge Rate: -- Must be less than 0.2 L/min

Purge Time: --

Helium Rate at enclosure: --

Helium Rate from sample tubing: -- Is this rate <10% of the rate at the enclosure

*No helium test performed, canister leaked and was empty.

Yes

Starting Pressure: -30.8 in. of Hg

Starting Time: 0826

Ending Time: 1600

Ending Pressure: -6 in. of Hg

Summa Canister Identification #: 2010

Flow Regulator ID # 785

Sample ID # SS-2

Time 8 hour

Analysis

Laboratory Alpha Analytical, Inc

VOCs (TO-15)

Prior to commencing the sampling activity, remove the brass cap from the end of the sample tubing and fit a new brass hose barb fitting onto the sample tubing.

Calibrate the Helium detection meter

Utility Clearance Completed:

If the Helium readings have a greater ratio than 10% the seals should be rechecked and the tracer gas should be reapplied.

Once the tracer gas screening procedures are completed and no short-circuiting is determined to be present at the location the soil vapor sample can be collected in a lab certified clean summa canister at a rate less than 0.2 L/min.

Is the Summa Canister Certified Clean and within the proper holding time ?

ROUX ASSOCIATES, INC. 2842.0001Y.103/APD

Soil Vapor Sampling Form

Inwood Charter School

3896 10th Ave, Inwood, New York

Date: 10/31/2016 Time: 0700

Weather : 40 degrees F, partly cloudy

Temperature: 40F Humidity: 65%

Wind Magnitude: 8mph Wind Direction: S

Barometric Pressure: 30.11" Precipitation: none

Sampling Team: Joe Gavin, Kailani Acosta

Sampling Location: SS-3

Site Condition (i.e. any adjacent questionable facilities, vent pipes, tanks, etc. and what type of basements are present)

Parking garage in use, with various concrete filled holes in asphalt.

N/A

Sampling Depth: 6-8 feet below land surface

Sealed with bentonite: N/A

Apparent Moisture Content: N/A

Purge Rate: -- Must be less than 0.2 L/min

Purge Time: --

Helium Rate at enclosure: --

Helium Rate from sample tubing: -- Is this rate <10% of the rate at the enclosure

*No helium test performed, canister leaked and was empty.

Yes

Starting Pressure: -30.7 in. of Hg

Starting Time: 0838

Ending Time: 1418

Ending Pressure: -5 in. of Hg

Summa Canister Identification #: 2303

Flow Regulator ID # 317

Sample ID # SS-3

Time 8 hour

Analysis

Laboratory Alpha Analytical, Inc

VOCs (TO-15)

Prior to commencing the sampling activity, remove the brass cap from the end of the sample tubing and fit a new brass hose barb fitting onto the sample tubing.

Calibrate the Helium detection meter

Utility Clearance Completed:

If the Helium readings have a greater ratio than 10% the seals should be rechecked and the tracer gas should be reapplied.

Once the tracer gas screening procedures are completed and no short-circuiting is determined to be present at the location the soil vapor sample can be collected in a lab certified clean summa canister at a rate less than 0.2 L/min.

Is the Summa Canister Certified Clean and within the proper holding time ?

ROUX ASSOCIATES, INC. 2842.0001Y.103/APD

Soil Vapor Sampling Form

Inwood Charter School

3896 10th Ave, Inwood, New York

Date: 11/22/2016 Time: 0625

Weather : Fair

Temperature: 37F Humidity: 57%

Wind Magnitude: 15mph Wind Direction: WNW

Barometric Pressure: 29.96" Precipitation: none

Sampling Team: A. Muscietta

Sampling Location: SV-1

Site Condition (i.e. any adjacent questionable facilities, vent pipes, tanks, etc. and what type of basements are present)

Parking garage in use, with various concrete filled holes in asphalt.

Yes

Sampling Depth: 3-5 feet below land surface

Sealed with bentonite: Yes

Apparent Moisture Content: N/A

Purge Rate: 200 cc/min Must be less than 0.2 L/min

Purge Time: 2 mins

Helium Rate at enclosure: 12125 ppm

Helium Rate from sample tubing: 0 ppm Is this rate <10% of the rate at the enclosure Yes

Yes

Starting Pressure: -31.4 in. of Hg

Starting Time: 0625

Ending Time: 1436

Ending Pressure: -6.13 in. of Hg

Summa Canister Identification #: 102

Flow Regulator ID # 776

Sample ID # SV-1

Time 8 hour

Analysis

Laboratory Alpha Analytical, Inc

VOCs (TO-15)

Prior to commencing the sampling activity, remove the brass cap from the end of the sample tubing and fit a new brass hose barb fitting onto the sample tubing.

Calibrate the Helium detection meter

Utility Clearance Completed:

If the Helium readings have a greater ratio than 10% the seals should be rechecked and the tracer gas should be reapplied.

Once the tracer gas screening procedures are completed and no short-circuiting is determined to be present at the location the soil vapor sample can be collected in a lab certified clean summa canister at a rate less than 0.2 L/min.

Is the Summa Canister Certified Clean and within the proper holding time ?

ROUX ASSOCIATES, INC. 2842.0001Y.103/APD

Soil Vapor Sampling Form

Inwood Charter School

3896 10th Ave, Inwood, New York

Date: 11/22/2016 Time: 0840

Weather : Fair

Temperature: 37F Humidity: 57%

Wind Magnitude: 15mph Wind Direction: WNW

Barometric Pressure: 29.96" Precipitation: none

Sampling Team: A. Muscietta

Sampling Location: SV-2

Site Condition (i.e. any adjacent questionable facilities, vent pipes, tanks, etc. and what type of basements are present)

Parking garage in use, with various concrete filled holes in asphalt.

Yes

Sampling Depth: 3-5 feet below land surface

Sealed with bentonite: Yes

Apparent Moisture Content: N/A

Purge Rate: 200 cc/min Must be less than 0.2 L/min

Purge Time: 2 mins

Helium Rate at enclosure: 11525 ppm

Helium Rate from sample tubing: 0 ppm Is this rate <10% of the rate at the enclosure Yes

Yes

Starting Pressure: -30.4 in. of Hg

Starting Time: 0840

Ending Time: 1630

Ending Pressure: -7.49 in. of Hg

Summa Canister Identification #: 236

Flow Regulator ID # 749

Sample ID # SV-2

Time 8 hour

Analysis

Laboratory Alpha Analytical, Inc

VOCs (TO-15)

Prior to commencing the sampling activity, remove the brass cap from the end of the sample tubing and fit a new brass hose barb fitting onto the sample tubing.

Calibrate the Helium detection meter

Utility Clearance Completed:

If the Helium readings have a greater ratio than 10% the seals should be rechecked and the tracer gas should be reapplied.

Once the tracer gas screening procedures are completed and no short-circuiting is determined to be present at the location the soil vapor sample can be collected in a lab certified clean summa canister at a rate less than 0.2 L/min.

Is the Summa Canister Certified Clean and within the proper holding time ?

ROUX ASSOCIATES, INC. 2842.0001Y.103/APD

Soil Vapor Sampling Form

Inwood Charter School

3896 10th Ave, Inwood, New York

Date: 11/22/2016 Time: 0627

Weather : Fair

Temperature: 37F Humidity: 57%

Wind Magnitude: 15mph Wind Direction: WNW

Barometric Pressure: 29.96" Precipitation: none

Sampling Team: A. Muscietta

Sampling Location: SV-3

Site Condition (i.e. any adjacent questionable facilities, vent pipes, tanks, etc. and what type of basements are present)

Parking garage in use, with various concrete filled holes in asphalt.

Yes

Sampling Depth: 3-5 feet below land surface

Sealed with bentonite: Yes

Apparent Moisture Content: N/A

Purge Rate: 200 cc/min Must be less than 0.2 L/min

Purge Time: 2 mins

Helium Rate at enclosure: 2700 ppm

Helium Rate from sample tubing: 0 ppm Is this rate <10% of the rate at the enclosure Yes

Yes

Starting Pressure: -29.1 in. of Hg

Starting Time: 0627

Ending Time: 1335

Ending Pressure: -5.66 in. of Hg

Summa Canister Identification #: 1726

Flow Regulator ID # 0396

Sample ID # SV-3

Time 8 hour

Analysis

Laboratory Alpha Analytical, Inc

VOCs (TO-15)

Prior to commencing the sampling activity, remove the brass cap from the end of the sample tubing and fit a new brass hose barb fitting onto the sample tubing.

Calibrate the Helium detection meter

Utility Clearance Completed:

If the Helium readings have a greater ratio than 10% the seals should be rechecked and the tracer gas should be reapplied.

Once the tracer gas screening procedures are completed and no short-circuiting is determined to be present at the location the soil vapor sample can be collected in a lab certified clean summa canister at a rate less than 0.2 L/min.

Is the Summa Canister Certified Clean and within the proper holding time ?

ROUX ASSOCIATES, INC. 2842.0001Y.103/APD

Soil Vapor Sampling Form

Inwood Charter School

3896 10th Ave, Inwood, New York

Time: 0618Date: 11/22/2016 Weather : Fair

Temperature: 37F Humidity: 57%

Wind Magnitude: 15mph Wind Direction: WNW

Barometric Pressure: 29.96" Precipitation: none

Sampling Team: A. Muscietta

Sampling Location: SV-4

Site Condition (i.e. any adjacent questionable facilities, vent pipes, tanks, etc. and what type of basements are present)

Parking garage in use, with various concrete filled holes in asphalt.

Yes

Sampling Depth: 3-5 feet below land surface

Sealed with bentonite: Yes

Apparent Moisture Content: N/A

Purge Rate: 200 cc/min Must be less than 0.2 L/min

Purge Time: 2 mins

Helium Rate at enclosure: 3700 ppm

Helium Rate from sample tubing: 0 ppm Is this rate <10% of the rate at the enclosure Yes

Yes

Starting Pressure: -29.83 in. of Hg

Starting Time: 0618

Ending Time: 1320

Ending Pressure: -6.09 in. of Hg

Summa Canister Identification #: 383

Flow Regulator ID # 0355

Sample ID # SV-4

Time 8 hour

Analysis

Laboratory Alpha Analytical, Inc

VOCs (TO-15)

Prior to commencing the sampling activity, remove the brass cap from the end of the sample tubing and fit a new brass hose barb fitting onto the sample tubing.

Calibrate the Helium detection meter

Utility Clearance Completed:

If the Helium readings have a greater ratio than 10% the seals should be rechecked and the tracer gas should be reapplied.

Once the tracer gas screening procedures are completed and no short-circuiting is determined to be present at the location the soil vapor sample can be collected in a lab certified clean summa canister at a rate less than 0.2 L/min.

Is the Summa Canister Certified Clean and within the proper holding time ?

ROUX ASSOCIATES, INC. 2842.0001Y.103/APD

Soil Vapor Sampling Form

Inwood Charter School

3896 10th Ave, Inwood, New York

Date: 11/22/2016 Time: 0623

Weather : Fair

Temperature: 37F Humidity: 57%

Wind Magnitude: 15mph Wind Direction: WNW

Barometric Pressure: 29.96" Precipitation: none

Sampling Team: A. Muscietta

Sampling Location: SV-5

Site Condition (i.e. any adjacent questionable facilities, vent pipes, tanks, etc. and what type of basements are present)

Parking garage in use, with various concrete filled holes in asphalt.

Yes

Sampling Depth: 3-5 feet below land surface

Sealed with bentonite: Yes

Apparent Moisture Content: N/A

Purge Rate: 200 cc/min Must be less than 0.2 L/min

Purge Time: 2 mins

Helium Rate at enclosure: 7325 ppm

Helium Rate from sample tubing: 0 ppm Is this rate <10% of the rate at the enclosure Yes

Yes

Starting Pressure: -30.64 in. of Hg

Starting Time: 0623

Ending Time: 1423

Ending Pressure: -5.99 in. of Hg

Summa Canister Identification #: 157

Flow Regulator ID # 0788

Sample ID # SV-5

Time 8 hour

Analysis

Laboratory Alpha Analytical, Inc

VOCs (TO-15)

Prior to commencing the sampling activity, remove the brass cap from the end of the sample tubing and fit a new brass hose barb fitting onto the sample tubing.

Calibrate the Helium detection meter

Utility Clearance Completed:

If the Helium readings have a greater ratio than 10% the seals should be rechecked and the tracer gas should be reapplied.

Once the tracer gas screening procedures are completed and no short-circuiting is determined to be present at the location the soil vapor sample can be collected in a lab certified clean summa canister at a rate less than 0.2 L/min.

Is the Summa Canister Certified Clean and within the proper holding time ?

ROUX ASSOCIATES, INC. 2842.0001Y.103/APD

Soil Vapor Sampling Form

Inwood Charter School

3896 10th Ave, Inwood, New York

Date: 11/22/2016 Time: 0615

Weather : Fair

Temperature: 37F Humidity: 57%

Wind Magnitude: 15mph Wind Direction: WNW

Barometric Pressure: 29.96" Precipitation: none

Sampling Team: A. Muscietta

Sampling Location: IA-112216

Site Condition (i.e. any adjacent questionable facilities, vent pipes, tanks, etc. and what type of basements are present)

Parking garage in use, with various concrete filled holes in asphalt. Adjacent to RSB-5.

N/A

Sampling Depth: N/A feet below land surface

Sealed with bentonite: N/A

Apparent Moisture Content: N/A

Purge Rate: N/A Must be less than 0.2 L/min

Purge Time: N/A

Helium Rate at enclosure: N/A

Helium Rate from sample tubing: N/A Is this rate <10% of the rate at the enclosure N/A

Yes

Starting Pressure: -29.92 in. of Hg

Starting Time: 0615

Ending Time: 1527

Ending Pressure: -5.97 in. of Hg

Summa Canister Identification #: 492

Flow Regulator ID # 0032

Sample ID # IA-112216

Time 8 hour

Analysis

Laboratory Alpha Analytical, Inc

VOCs (TO-15)

Prior to commencing the sampling activity, remove the brass cap from the end of the sample tubing and fit a new brass hose barb fitting onto the sample tubing.

Calibrate the Helium detection meter

Utility Clearance Completed:

If the Helium readings have a greater ratio than 10% the seals should be rechecked and the tracer gas should be reapplied.

Once the tracer gas screening procedures are completed and no short-circuiting is determined to be present at the location the soil vapor sample can be collected in a lab certified clean summa canister at a rate less than 0.2 L/min.

Is the Summa Canister Certified Clean and within the proper holding time ?

ROUX ASSOCIATES, INC. 2842.0001Y.103/APD

Soil Vapor Sampling Form

Inwood Charter School

3896 10th Ave, Inwood, New York

Date: 11/22/2016 Time: 0630

Weather : Fair

Temperature: 37F Humidity: 57%

Wind Magnitude: 15mph Wind Direction: WNW

Barometric Pressure: 29.96" Precipitation: none

Sampling Team: A. Muscietta

Sampling Location: AA-112216

Site Condition (i.e. any adjacent questionable facilities, vent pipes, tanks, etc. and what type of basements are present)

Outside along 10th Ave.

N/A

Sampling Depth: N/A feet below land surface

Sealed with bentonite: N/A

Apparent Moisture Content: N/A

Purge Rate: N/A Must be less than 0.2 L/min

Purge Time: N/A

Helium Rate at enclosure: N/A

Helium Rate from sample tubing: N/A Is this rate <10% of the rate at the enclosure N/A

Yes

Starting Pressure: -29.90 in. of Hg

Starting Time: 0630

Ending Time: 1440

Ending Pressure: -6.14 in. of Hg

Summa Canister Identification #: 450

Flow Regulator ID # 0202

Sample ID # AA-112216

Time 8 hour

Analysis

Laboratory Alpha Analytical, Inc

VOCs (TO-15)

Prior to commencing the sampling activity, remove the brass cap from the end of the sample tubing and fit a new brass hose barb fitting onto the sample tubing.

Calibrate the Helium detection meter

Utility Clearance Completed:

If the Helium readings have a greater ratio than 10% the seals should be rechecked and the tracer gas should be reapplied.

Once the tracer gas screening procedures are completed and no short-circuiting is determined to be present at the location the soil vapor sample can be collected in a lab certified clean summa canister at a rate less than 0.2 L/min.

Is the Summa Canister Certified Clean and within the proper holding time ?

ROUX ASSOCIATES, INC. 2842.0001Y.103/APD

Soil Vapor Sampling Form

Inwood Charter School

3896 10th Ave, Inwood, New York

Date: 12/15/2016 Time: 0839

Weather : Cloudy

Temperature: 22F Humidity: 32%

Wind Magnitude: 20mph Wind Direction: --

Barometric Pressure: -- Precipitation: none

Sampling Team: Valerie Sabatasso

Sampling Location: SV-6

Site Condition (i.e. any adjacent questionable facilities, vent pipes, tanks, etc. and what type of basements are present)

Yes

Sampling Depth: 4 feet below land surface

Sealed with bentonite: Yes

Apparent Moisture Content: N/A

Purge Rate: 200 cc/min Must be less than 0.2 L/min

Purge Time: 2 mins

Helium Rate at enclosure: 2.1%

Helium Rate from sample tubing: 0 ppm Is this rate <10% of the rate at the enclosure Yes

Yes

Starting Pressure: -30.26 in. of Hg

Starting Time: 0839

Ending Time: 1559

Ending Pressure: -6.38 in. of Hg

Summa Canister Identification #: 2340

Flow Regulator ID # 0699

Sample ID # SV-6

Time 8 hour

Analysis

Laboratory Alpha Analytical, Inc

VOCs (TO-15)

Prior to commencing the sampling activity, remove the brass cap from the end of the sample tubing and fit a new brass hose barb fitting onto the sample tubing.

Calibrate the Helium detection meter

Utility Clearance Completed:

If the Helium readings have a greater ratio than 10% the seals should be rechecked and the tracer gas should be reapplied.

Once the tracer gas screening procedures are completed and no short-circuiting is determined to be present at the location the soil vapor sample can be collected in a lab certified clean summa canister at a rate less than 0.2 L/min.

Is the Summa Canister Certified Clean and within the proper holding time ?

ROUX ASSOCIATES, INC. 2842.0001Y.103/APD

Soil Vapor Sampling Form

Inwood Charter School

3896 10th Ave, Inwood, New York

Time: 0751Date:12/15/2016Weather : Cloudy

Temperature: 22F Humidity: 32%

Wind Magnitude: 20mph Wind Direction: --

Barometric Pressure: -- Precipitation: none

Sampling Team: Valerie Sabatasso

Sampling Location: SV-7

Site Condition (i.e. any adjacent questionable facilities, vent pipes, tanks, etc. and what type of basements are present)

Parking garage

Yes

Sampling Depth: 5.5 feet below land surface

Sealed with bentonite: Yes

Apparent Moisture Content: N/A

Purge Rate: 200 cc/min Must be less than 0.2 L/min

Purge Time: 2 mins

Helium Rate at enclosure: 2.4%

Helium Rate from sample tubing: 0 ppm Is this rate <10% of the rate at the enclosure Yes

Yes

Starting Pressure: -30.22 in. of Hg

Starting Time: 0751

Ending Time: 1504

Ending Pressure: -5.48 in. of Hg

Summa Canister Identification #: 2334

Flow Regulator ID # 0776

Sample ID # SV-7

Time 8 hour

Analysis

Laboratory Alpha Analytical, Inc

VOCs (TO-15)

Prior to commencing the sampling activity, remove the brass cap from the end of the sample tubing and fit a new brass hose barb fitting onto the sample tubing.

Calibrate the Helium detection meter

Utility Clearance Completed:

If the Helium readings have a greater ratio than 10% the seals should be rechecked and the tracer gas should be reapplied.

Once the tracer gas screening procedures are completed and no short-circuiting is determined to be present at the location the soil vapor sample can be collected in a lab certified clean summa canister at a rate less than 0.2 L/min.

Is the Summa Canister Certified Clean and within the proper holding time ?

ROUX ASSOCIATES, INC. 2842.0001Y.103/APD

Soil Vapor Sampling Form

Inwood Charter School

3896 10th Ave, Inwood, New York

Time: 0748Date: 12/15/2016 Weather : Cloudy

Temperature: 22F Humidity: 32%

Wind Magnitude: 20mph Wind Direction: --

Barometric Pressure: -- Precipitation: none

Sampling Team: Valerie Sabatasso

Sampling Location: SV-8

Site Condition (i.e. any adjacent questionable facilities, vent pipes, tanks, etc. and what type of basements are present)

Parking garage

Yes

Sampling Depth: 3 feet below land surface

Sealed with bentonite: Yes

Apparent Moisture Content: N/A

Purge Rate: 200 cc/min Must be less than 0.2 L/min

Purge Time: 2 mins

Helium Rate at enclosure: 13500 ppm

Helium Rate from sample tubing: 0 ppm Is this rate <10% of the rate at the enclosure Yes

Yes

Starting Pressure: -29.92 in. of Hg

Starting Time: 0748

Ending Time: 1548

Ending Pressure: -8.60 in. of Hg

Summa Canister Identification #: 2042

Flow Regulator ID # 0677

Sample ID # SV-8

Time 8 hour

Analysis

Laboratory Alpha Analytical, Inc

VOCs (TO-15)

Prior to commencing the sampling activity, remove the brass cap from the end of the sample tubing and fit a new brass hose barb fitting onto the sample tubing.

Calibrate the Helium detection meter

Utility Clearance Completed:

If the Helium readings have a greater ratio than 10% the seals should be rechecked and the tracer gas should be reapplied.

Once the tracer gas screening procedures are completed and no short-circuiting is determined to be present at the location the soil vapor sample can be collected in a lab certified clean summa canister at a rate less than 0.2 L/min.

Is the Summa Canister Certified Clean and within the proper holding time ?

ROUX ASSOCIATES, INC. 2842.0001Y.103/APD

Soil Vapor Sampling Form

Inwood Charter School

3896 10th Ave, Inwood, New York

Date: 12/15/2016 Time: 0741

Weather : Cloudy

Temperature: 22F Humidity: 32%

Wind Magnitude: 20mph Wind Direction: --

Barometric Pressure: -- Precipitation: none

Sampling Team: Valerie Sabatasso

Sampling Location: SV-9

Site Condition (i.e. any adjacent questionable facilities, vent pipes, tanks, etc. and what type of basements are present)

Parking garage

Yes

Sampling Depth: 5.5 feet below land surface

Sealed with bentonite: Yes

Apparent Moisture Content: N/A

Purge Rate: 200 cc/min Must be less than 0.2 L/min

Purge Time: 2 mins

Helium Rate at enclosure: 16050 ppm

Helium Rate from sample tubing: 0 ppm Is this rate <10% of the rate at the enclosure Yes

Yes

Starting Pressure: -29.77 in. of Hg

Starting Time: 0741

Ending Time: 1520

Ending Pressure: -6.60 in. of Hg

Summa Canister Identification #: 2337

Flow Regulator ID # 0363

Sample ID # SV-9

Time 8 hour

Analysis

Laboratory Alpha Analytical, Inc

VOCs (TO-15)

Prior to commencing the sampling activity, remove the brass cap from the end of the sample tubing and fit a new brass hose barb fitting onto the sample tubing.

Calibrate the Helium detection meter

Utility Clearance Completed:

If the Helium readings have a greater ratio than 10% the seals should be rechecked and the tracer gas should be reapplied.

Once the tracer gas screening procedures are completed and no short-circuiting is determined to be present at the location the soil vapor sample can be collected in a lab certified clean summa canister at a rate less than 0.2 L/min.

Is the Summa Canister Certified Clean and within the proper holding time ?

ROUX ASSOCIATES, INC. 2842.0001Y.103/APD

Soil Vapor Sampling Form

Inwood Charter School

3896 10th Ave, Inwood, New York

Date: 12/15/2016 Time: 0833

Weather : Cloudy

Temperature: 22F Humidity: 32%

Wind Magnitude: 20mph Wind Direction: --

Barometric Pressure: -- Precipitation: none

Sampling Team: Valerie Sabatasso

Sampling Location: IA-12152016

Site Condition (i.e. any adjacent questionable facilities, vent pipes, tanks, etc. and what type of basements are present)

N/A

Sampling Depth: N/A feet below land surface

Sealed with bentonite: N/A

Apparent Moisture Content: N/A

Purge Rate: N/A Must be less than 0.2 L/min

Purge Time: N/A

Helium Rate at enclosure: N/A

Helium Rate from sample tubing: N/A Is this rate <10% of the rate at the enclosure N/A

Yes

Starting Pressure: -29.21 in. of Hg

Starting Time: 0833

Ending Time: 1558

Ending Pressure: -7.32 in. of Hg

Summa Canister Identification #: 2332

Flow Regulator ID # 0043

Sample ID # IA-12152016Time 8 hour

Analysis

Laboratory Alpha Analytical, Inc

VOCs (TO-15)

Prior to commencing the sampling activity, remove the brass cap from the end of the sample tubing and fit a new brass hose barb fitting onto the sample tubing.

Calibrate the Helium detection meter

Utility Clearance Completed:

If the Helium readings have a greater ratio than 10% the seals should be rechecked and the tracer gas should be reapplied.

Once the tracer gas screening procedures are completed and no short-circuiting is determined to be present at the location the soil vapor sample can be collected in a lab certified clean summa canister at a rate less than 0.2 L/min.

Is the Summa Canister Certified Clean and within the proper holding time ?

ROUX ASSOCIATES, INC. 2842.0001Y.103/APD

Soil Vapor Sampling Form

Inwood Charter School

3896 10th Ave, Inwood, New York

Time: 0905Date: 2/14/2017 Weather : Clear

Temperature: 35F Humidity: 55%

Wind Magnitude: 5-10mph Wind Direction: west

Barometric Pressure: -- Precipitation: none

Sampling Team: Rich Crockett

Sampling Location: SV-10

Site Condition (i.e. any adjacent questionable facilities, vent pipes, tanks, etc. and what type of basements are present)

Parking garage

Yes

Sampling Depth: 5 feet below land surface

Sealed with bentonite: Yes

Apparent Moisture Content: N/A

Purge Rate: 200 cc/min Must be less than 0.2 L/min

Purge Time: 2 mins

Helium Rate at enclosure: 12000 ppm

Helium Rate from sample tubing: 0 ppm Is this rate <10% of the rate at the enclosure Yes

Yes

Starting Pressure: -29.68 in. of Hg

Starting Time: 932

Ending Time: 1759

Ending Pressure: -4.79 in. of Hg

Summa Canister Identification #: 343

Flow Regulator ID # 712

Sample ID # SV-10

Time 8 hour

Analysis

Laboratory Alpha Analytical, Inc

VOCs (TO-15)

Prior to commencing the sampling activity, remove the brass cap from the end of the sample tubing and fit a new brass hose barb fitting onto the sample tubing.

Calibrate the Helium detection meter

Utility Clearance Completed:

If the Helium readings have a greater ratio than 10% the seals should be rechecked and the tracer gas should be reapplied.

Once the tracer gas screening procedures are completed and no short-circuiting is determined to be present at the location the soil vapor sample can be collected in a lab certified clean summa canister at a rate less than 0.2 L/min.

Is the Summa Canister Certified Clean and within the proper holding time ?

ROUX ASSOCIATES, INC. 2842.0001Y.103/APD

Soil Vapor Sampling Form

Inwood Charter School

3896 10th Ave, Inwood, New York

Time: 0910Date: 2/14/2017 Weather : Clear

Temperature: 35F Humidity: 55%

Wind Magnitude: 5-10mph Wind Direction: west

Barometric Pressure: -- Precipitation: none

Sampling Team: Rich Crockett

Sampling Location: SV-10 AMB

Site Condition (i.e. any adjacent questionable facilities, vent pipes, tanks, etc. and what type of basements are present)

Parking garage

N/A

Sampling Depth: N/A feet below land surface

Sealed with bentonite: N/A

Apparent Moisture Content: N/A

Purge Rate: N/A Must be less than 0.2 L/min

Purge Time: N/A

Helium Rate at enclosure: N/A

Helium Rate from sample tubing: N/A Is this rate <10% of the rate at the enclosure N/A

Yes

Starting Pressure: -30.28 in. of Hg

Starting Time: 934

Ending Time: 1749

Ending Pressure: -4.77 in. of Hg

Summa Canister Identification #: 405

Flow Regulator ID # 956

Sample ID # SV-10 AMB

Time 8 hour

Analysis

Laboratory Alpha Analytical, Inc

VOCs (TO-15)

Prior to commencing the sampling activity, remove the brass cap from the end of the sample tubing and fit a new brass hose barb fitting onto the sample tubing.

Calibrate the Helium detection meter

Utility Clearance Completed:

If the Helium readings have a greater ratio than 10% the seals should be rechecked and the tracer gas should be reapplied.

Once the tracer gas screening procedures are completed and no short-circuiting is determined to be present at the location the soil vapor sample can be collected in a lab certified clean summa canister at a rate less than 0.2 L/min.

Is the Summa Canister Certified Clean and within the proper holding time ?

ROUX ASSOCIATES, INC. 2842.0001Y.103/APD

Soil Vapor Sampling Form

Inwood Charter School

3896 10th Ave, Inwood, New York

Time: 0915Date: 2/14/2017 Weather : Clear

Temperature: 35F Humidity: 55%

Wind Magnitude: 5-10mph Wind Direction: west

Barometric Pressure: -- Precipitation: none

Sampling Team: Rich Crockett

Sampling Location: SV-11

Site Condition (i.e. any adjacent questionable facilities, vent pipes, tanks, etc. and what type of basements are present)

Stairwell in parking garage

Yes

Sampling Depth: 5 feet below land surface

Sealed with bentonite: Yes

Apparent Moisture Content: N/A

Purge Rate: 200 cc/min Must be less than 0.2 L/min

Purge Time: 2 mins

Helium Rate at enclosure: 13500 ppm

Helium Rate from sample tubing: 0 ppm Is this rate <10% of the rate at the enclosure Yes

Yes

Starting Pressure: -30.04 in. of Hg

Starting Time: 942

Ending Time: 1822

Ending Pressure: -4.89 in. of Hg

Summa Canister Identification #: 2195

Flow Regulator ID # 636

Sample ID # SV-11

Time 8 hour

Analysis

Laboratory Alpha Analytical, Inc

VOCs (TO-15)

Prior to commencing the sampling activity, remove the brass cap from the end of the sample tubing and fit a new brass hose barb fitting onto the sample tubing.

Calibrate the Helium detection meter

Utility Clearance Completed:

If the Helium readings have a greater ratio than 10% the seals should be rechecked and the tracer gas should be reapplied.

Once the tracer gas screening procedures are completed and no short-circuiting is determined to be present at the location the soil vapor sample can be collected in a lab certified clean summa canister at a rate less than 0.2 L/min.

Is the Summa Canister Certified Clean and within the proper holding time ?

ROUX ASSOCIATES, INC. 2842.0001Y.103/APD

Soil Vapor Sampling Form

Inwood Charter School

3896 10th Ave, Inwood, New York

Time: 0920Date: 2/14/2017 Weather : Clear

Temperature: 35F Humidity: 55%

Wind Magnitude: 5-10mph Wind Direction: west

Barometric Pressure: -- Precipitation: none

Sampling Team: Rich Crockett

Sampling Location: SV-11 AMB

Site Condition (i.e. any adjacent questionable facilities, vent pipes, tanks, etc. and what type of basements are present)

Stairwell in parking garage

N/A

Sampling Depth: N/A feet below land surface

Sealed with bentonite: N/A

Apparent Moisture Content: N/A

Purge Rate: N/A Must be less than 0.2 L/min

Purge Time: N/A

Helium Rate at enclosure: N/A

Helium Rate from sample tubing: N/A Is this rate <10% of the rate at the enclosure N/A

Yes

Starting Pressure: -29.72 in. of Hg

Starting Time: 949

Ending Time: 1824

Ending Pressure: -4.92 in. of Hg

Summa Canister Identification #: 445

Flow Regulator ID # 80

Sample ID # SV-11 AMB

Time 8 hour

Analysis

Laboratory Alpha Analytical, Inc

VOCs (TO-15)

Prior to commencing the sampling activity, remove the brass cap from the end of the sample tubing and fit a new brass hose barb fitting onto the sample tubing.

Calibrate the Helium detection meter

Utility Clearance Completed:

If the Helium readings have a greater ratio than 10% the seals should be rechecked and the tracer gas should be reapplied.

Once the tracer gas screening procedures are completed and no short-circuiting is determined to be present at the location the soil vapor sample can be collected in a lab certified clean summa canister at a rate less than 0.2 L/min.

Is the Summa Canister Certified Clean and within the proper holding time ?