PHASE II ENVIRONMENTAL SITE ASSESSMENT

COOLEY HIGH SCHOOL

15055 Hubbell Street Detroit, Michigan 48227

February 20, 2026

Prepared for:

Ms. Alycsa Valentine, Administrations Detroit Public Schools 5057 Woodward Avenue Detroit, Michigan 48202

Prepared by:

Environmental Testing & Consulting, Inc.

38900 West Huron River Drive

Romulus, Michigan 48174 734-955-6600 (phone); 734-955-6604 (fax)

ETC Project No. 287920

Cooley High School

TABLE OF CONTENTS

SECTION PAGE

1.0 INTRODUCTION 1

1.1 Property Location and Description 1

1.2 Property Background/History 1

1.3 Report User Reliance 1

2.0 SAMPLING OBJECTIVES AND SCOPE OF WORK 4

3.0 PRE-INVESTIGATIVE ACTIVITIES 5

3.1 Site Specific Health and Safety Plan 5

3.2 MISS-DIG, Utility Clearance & Soil Boring Staking 5

4.0 FIELD INVESTIGATION ACTIVITIES 6

4.1 Soil Borings and Soil Sampling 6

4.2 Field Screening and Sample Selection Methods 7

4.3 Sample Packaging and Shipping Methods 7

4.4 Laboratory Chemical Analysis and Methods 7

4.5 Laboratory Geotechnical Analysis and Methods – None 7

4.6 Quality Assurance/ Quality Control 8

4.7 Sampling Equipment Decontamination 8

4.8 Investigative Derived Waste Management 8

5.0 RESULTING DATA AND FINDINGS 10

5.1 Local Subsurface Conditions 10

5.2 Evaluation of Soil Laboratory Chemical Data 11

6.0 SUMMARY AND CONCLUSIONS 15

7.0 RECOMMENDATIONS 16

FIGURES

• Figure 1 – Property Location Map

• Figure 2 – Soil Sampling Location Map

• Figure 3 – Soil Material Analytical Data Map

TABLES

• Table 1 – Sample Interval/ Depth & Lithological Description

• Table 2 – Residential Soil Analytical Data – MI 10 Metals

List of Appendices:

• Appendix A – Site Specific Health and Safety Plan

• Appendix B – Soil Boring Logs

• Appendix C – Laboratory Analytical Data Reports & Chain-Of-Custody Sheets

1.0 INTRODUCTION

1.1 Property Location and Description

Environmental Testing and Consulting, Inc. (ETC) was retained by Ms. Alycsa Valentine, a representative of Detroit Public Schools (client) to perform a Phase II Environmental Site

Assessment (ESA) of the Cooley High School property, located at 15055 Hubbell Street, in

Detroit, Michigan (Wayne County), Parcel ID Number: 22040004 (hereafter referred to as the

“subject property”). The subject property is 651 feet above sea level with coordinates Latitude

(north) 42° 24’ 1.62” or 42.4004510 and Longitude (west) – (minus) 83° 11’ 28.42” or -83.19123;

USGS Quadrangle, Royal Oak, Topographic Map, 2019.

1.2 Property Background/History

ETC has performed this Phase II Environmental Site Assessment (ESA) of Cooley High School property in accordance with practices of ASTM Standard 1903-19 for Environmental Site

Assessments (ESA). The purpose of the ESA is to perform a subsurface site investigation based on recognized environmental conditions (RECs) identified from a Phase I ESA completed by

ETC, dated January 26, 2026, to determine the absence or presence of impact from adjacent properties’ historical use.

1.3 Report User Reliance

This report should not be considered as a recommendation to purchase, sell, or develop the subject property, and the opinions contained herein are not legal opinions. To evaluate the information contained in this report, the reader must understand the limitations associated with this assessment. Reliance on this report by a party other than the Detroit Public Schools, or its agencies and representatives, shall be at the party’s sole risk unless that party has written authorization from Environmental Testing and Consulting, Inc. to use this document. The purpose of this restriction is to attempt to protect the interest of the parties for whom the report may not be appropriately directed.

Based upon the analytical results, we have determined that two (2) areas of soil are contaminated above the state's Part 201 Generic Residential Cleanup Criteria, as applicable. One analyte was detected above

Direct Contact criteria; Arsenic. Arsenic was detected above Direct Contact criteria in SB-4 at 8,300 ppb, and in SB-9 at 53,000 ppb. However, both areas can be identified as at a depth of soil beneath a concrete parking lot (SB-4), and the area of SB-9, it is likely that treated wood debris is in this area from a former electrical/telephone pole on the southeast grassy area; see picture below:

Source: Historic Detroit.org Wayne State University’s Virtual Motor City Collection, 1927.

Since the 1930’s, arsenic (As) was used to treat wood against decay, and was banned by the US EPA in

2002 for wood treatment. Arsenic is abiotic and does not respond to natural bio-attenuation.

ETC warrants that no information or documentation was deleted, omitted, or changed that would otherwise cause the Detroit Public Schools and its agencies and authorities to reach a different conclusion. Furthermore, ETC understands that the Detroit Public Schools and its agencies and authorities rely upon the overall completeness, accuracy, and conclusions in this report and hereby provides reliance on the contents presented herein. See Figure 1. Property Location Map (USGS, 2019).

In the event, that excavation and/or demolition activities are in the area of the northwest parking lot

(estimated 1,900 cubic yards) and treated wood debris (estimated 1 cubic yard), ETC recommends the soil be excavated and transported for offsite disposal.

Historical Topo Map page

SITE NAME:

ADDRESS:

CLIENT:

This report includes information from the following map sheet(s).

EW

SW S SE

NW N NE

0 Miles 0.25 0.5 1 1.5

Cooley High School 15055 Hubbell Detroit, MI 48227 Environmental Testing & Consulting

TP, Royal Oak, 2019, 7.5-minute

8195424 4 7 rhart Arrow rhart Typewriter Subject Property

2.0 SAMPLING OBJECTIVES AND SCOPE OF WORK

The objectives of this ESA were to provide Biased Soil Sampling method based on adjacent properties with historical uses as either auto repair shop, dry cleaners, and filling/gas station. The ESA includes nine

(9) soil borings using a 6600 Tractor-mounted Geoprobe® drilling rig, push-probe method, to the depth of a “confining clay barrier” encountered at 2 to 6 feet depth and compare soil sample analysis to the accepted Michigan EGLE's Part 201/213 Generic Residential Screening Criteria provided on Michigan

EGLE's Table 2. Soil Residential comparison tables on MI EGLE’s website.

Nine (9) soil borings were drilled within the subject property, and one (1) discrete/grab soil sample was collected from each boring, and analyzed for the following:

• Volatile Organic Compounds (USEPA method 8260)

• Semi-volatile Organic Compounds (USEPA method 8270)

• Polychlorinated Biphenyls (USEPA method 8081)

• 10 Michigan metals (various methods)

Discrete soil boring samples were collected and labelled as;

• SB-1 (5'-6')

• SB-2 (2'-3')

• SB-3 (2'-4')

• SB-4 (2’-4’)

• SB-5 (2’-4’)

• SB-6 (2’-4’)

• SB-7 (2’-3’)

• SB-8 (2’-3’)

• SB-9 (2’-3’)

3.0 PRE-INVESTIGATIVE ACTIVITIES

3.1 Site-Specific Health and Safety Plan

ETC personnel adhered to a Site-Specific Health and Safety Plan

• ETC knows the location/maps of area to flag. MISSDIG does not normally flag private property or client property, but will flag connection locations into the subject property. Be aware of water mains, septic tanks, leachate fields. NEVER ALLOW HEAVY

EQUIPMENT TO DRIVE OVER TOP OF A SEPTIC TANK OR LEACHATE FIELD, even if the rig has balloon tires.

• Prepare Work Plan and acknowledgement form promptly after initial request from a client.

• Communicate with the client during the project and notify them if there is an access problem or other issues that impact the schedule, or public safety.

• All work must remain confidential unless given authorization by the client.

• Geoprobe push/percussion with 4-foot continuous sampler with a plastic dedicated sleeve. Some HSA rigs can drill without the mast up for overhead wire clearance. For

Residential and lawns use an ATV Balloon Tire drill rig to minimize tire ruts and lawn damage.

• Screen work zone for vapors with a PID meter.

• Don high-visibility vest, and steel-toe work boots.

• Use traffic cones around the drilling rig; loading, unloading, and during operations.

• Don hearing protection during drilling/sampling; use of percussion may be noisy.

• Communicate with all personnel and subcontractors on the site, at all times.

• Don nitrile/latex gloves to handle all samples.

Hazards involved with drilling and drilling rigs:

Overhead Lines – Arcing of electrical wires can cause electrocution

Damaging telephone lines and other lines

Stay 8 to 10 feet away from all overhead lines and overhead utilities. Do not mobilize the rig with the mast up (See Appendix A – Site Specific Health and Safety Plan).

3.2 MISS-DIG, Utility Clearance & Soil Boring Staking

ETC consulted Sanborn Maps® provided by the Phase I ESA, to determine the former residential structure's footprint, and determined all had been demolished and are within the current footprint of the school building. No soil sampling was necessary within this area. ETC’s environmental drilling subcontractor contacted MISSDIG to locate underground utilities. MISSDIG does not provide private property utility locations; however, provides the location of the connection from the

Right-of-Way.

4.0 FIELD INVESTIGATIVE ACTIVITIES

The scope of work included nine (9) soil borings within the perimeter the subject property. See Figure 2 for Sampling Location Map.

4.1 Soil Borings and Soil Sampling

The ESA included nine (9) soil borings advanced using a 6600 Tractor-mounted Geoprobe® drilling method to the depth of a “confining clay barrier” encountered at 2 to 6 feet below grade.

The following locations are listed with the sampling depth of each sample:

• SB-1 (5'-6')

• SB-2 (2'-3')

• SB-3 (2'-4')

• SB-4 (2’-4’)

• SB-5 (2’-4’)

• SB-6 (2’-4’)

• SB-7 (2’-3’)

• SB-8 (2’-3’)

• SB-9 (2’-3’)

Geoprobe® drilling is a push-probe drilling technique that uses a 4-foot core continuous (CO) dedicated disposable sample sleeve, typically, a 1-inch stainless steel core device. Prior to drilling activities, the push-probe method was modified to a percussion push-probe method for drilling a 2-inch Macro Core stainless steel sampler with a dedicated 2-inch sample sleeve due to the quantity of soil samples needed to adequately analyze for chosen analytes and to core through debris of concrete and bricks that can be found in soil within former footprints of structures. Since drilling was to the depth of 2 to 6 feet below grade, an additional 4-foot core was added upon reaching 4 feet to push-probe to the depth of desired sampling and confirm the presence of “natural clay” at depth across the property. The core device was decontaminated prior to drilling and steam-cleaned off-site. Each boring was backfilled using soil cuttings from the dedicated sampler sleeve (See Appendix B Soil Boring Logs).

4.2 Field Screening and Sample Selection Methods

The continuous disposable sample sleeve was cut open and immediately field screened for total volatile organic compounds (TVOCs) using a photoionization detector (PID). The PID screening was recorded in the field and is provided in the Appendix B Soil Boring Log. The PID had calibration prior to use, using Isobutylene 100 parts per million. Sample selection was based on depths pre-determined in the scope of work for each of the nine (9) soil borings.

4.3 Sample Packaging and Shipping Methods

Soil samples were collected into prepared glass sample containers; one 8-ounce jar, and one 40 milliliters (mL) volatile organic analysis (VOA) vial provided by Brighton Analytical, llc, Brighton, Michigan. The VOA vial sample containers (40 mL) were pre-preserved with methanol (MEOH) using USEPA method 5035 for the volatile organic compound (VOC) analysis of USEPA Method

8260. A graduated measuring tube was used to collect 10 mL of soil and add to the methanol vial.

Upon sample collection, all soil samples were immediately placed in a pre-cooled cooler with blue ice.

4.4 Laboratory Chemical Analysis and Methods

Laboratory analysis included;

• Volatile Organic Compounds (USEPA method 8260) (VOCs)

• Semi-volatile Organic Compounds (USEPA method 8270) (SVOCs)

• Polychlorinated Biphenyls (USEPA method 8081) (PCBs)

• 10 Michigan metals (various methods) (Arsenic, Barium, Cadmium, Chromium, Copper, Lead, Mercury, Selenium, Silver, and Zinc)

4.5 Laboratory Geotechnical Analysis and Methods - None

As of September of 2024, geotechnical analysis is no longer required by the state, if mercury (Hg) is detected, as long as no logical source can be identified, and is below background of 130 parts per billion (ppb). This analysis was determined not necessary.

4.6 Quality Assurance/ Quality Control

A trip blank sample was provided as part of QA/QC, and was standard laboratory control and analysis procedure.

4.7 Sampling Equipment Decontamination

The soil samples were collected in a dedicated, disposable liner, that was advanced through a pre-cleaned drilling core sampler.

4.8 Investigative Derived Waste Management

No wastes were generated; rather, unused sample-cuttings were used to backfill each of the soil boring locations, and the disposable sampler sleeve and spent-nitrile gloves were transported off-site for solid disposal.

rhart

Soil Boring Locations rhart Typewriter Landscaping rhart Typewriter rhart Typewriter rhart Typewriter SCALE (ft) rhart Typewriter Grassy lawn rhart Typewriter grassy lawn rhart Typewriter parking lot rhart Typewriter parking lot rhart Typewriter Ellsworth Street rhart Typewriter Lauder Street rhart Typewriter Chalfonte Street rhart Typewriter Hubbell Avenue rhart Typewriter Coyle Street rhart Typewriter property boundary rhart Typewriter Phase II ESA

15055 Hubbell Avenue Detroit, Michigan 48227 rhart Typewriter Cooley High School rhart Typewriter Drawing: rsh 2/12/2026 rhart Typewriter Heating Plant rhart Arrow rhart Arrow rhart Typewriter N rhart Typewriter

SB-1

rhart Typewriter

SB-2

rhart Typewriter

SB-3

rhart Typewriter

SB-4

rhart Typewriter

SB-5

rhart Typewriter

SB-6

rhart Typewriter

SB-7

rhart Typewriter

SB-8

rhart Typewriter

SB-9

rhart Typewriter Church Property

5.0 RESULTING DATA AND FINDINGS

The detected results are summarized on Figure 3; no analytes were above Part 201 Residential

Screening Criteria.

5.1 Local Subsurface Conditions

ETC followed the location of the proposed soil borings as near to the perimeter as possible to perform drilling of nine (9) soil borings and collect soil samples for parameters set forth in proposal based on RECS from the Phase I ESA. Below the surface grade, the soils were top soil of sandy silt with no gravel, encountering natural clay at the depth of 2 feet below grade, which is the natural clays of the Huron-Erie lobe. (See Appendices for Soil Boring Logs).

Table 1 - Sample Interval/ Depth & Lithological Description

Soil Boring Lithological Description (Continuous coring) Outside temp. 34°F

SB-1

0-1.8' TOP SOIL, sandy silt, brown, organic, moist (ML)

1.8'-8' NATURAL CLAY, brown, moist, high plasticity (CL)

SB-2

0-1.8'TOP SOIL, sandy silt, brown, organic, moist (ML)

1.8’-4' NATURAL CLAY, brown, moist, high plasticity (CL)

SB-3

0-1.8'TOP SOIL, sandy silt, brown, organic, moist (ML)

1.8’-4' NATURAL CLAY, brown, moist, high plasticity (CL)

SB-4

0-0.6' CONCRETE,

0.6’-1’ FILL, sand, brown, moist (SW)

1’-4' NATURAL CLAY, brown with gray mottling, moist, high plasticity (CL)

SB-5

0-1.5’ TOP SOIL, sandy silt, brown, organic, moist (ML)

1.5’-4’ NATURAL CLAY, brown with gray mottling, moist, no cracking, high plasticity (CL)

SB-6

0-1.5’ TOP SOIL, sandy silt, brown, organic, moist (ML)

1.5’-4’ NATURAL CLAY, brown with gray mottling, moist, no cracking, high plasticity (CL)

SB-7

0-1.5’ TOP SOIL, sandy silt, brown, organic, moist (ML)

1.5’-4’ NATURAL CLAY, brown with gray mottling, moist, no cracking, high plasticity (CL)

SB-8

0-0.6' CONCRETE

0.6’-1.5’ TOP SOIL, sandy silt, brown, organic, moist (ML)

1.5’-4’ NATURAL CLAY, brown with gray mottling, moist, no cracking, high plasticity (CL)

SB-9

0-1.5’ TOP SOIL, sandy silt, brown, organic, moist (ML)

1.5’-4’ NATURAL CLAY, brown with gray mottling, moist, no cracking, high plasticity, Wood debris (CL)

5.2 Evaluation of Soil Laboratory Chemical Data

Soil Sample for Volatile Organic Compounds (VOCs)

The laboratory analytical data did not detect VOCs in the soil borings. The PID reading was 0 for all nine (9) soil borings (See Appendix C Brighton Analytical, LLC for laboratory data analysis).

Soil Sample for Semi-Volatile Organic Compounds (SVOCs)

Semi-Volatile Organic Compounds (SVOCs) were not detected in soil borings. (See Appendix C

Brighton Analytical, LLC for laboratory data analysis).

Soil Sample for Polychlorinated biphenyls (PCBs)

PCB analytes were not detected in the soil borings (See Appendix C Brighton Analytical, LLC for laboratory data analysis).

Soil Sample for Michigan 10 Metals and Chloride

Michigan 10 Metals were detected in all soil boring locations. One analyte, arsenic (As) was detected above Direct Contact criteria in SB-4 at 8,300 ppb, and in SB-9 at 53,000 ppb. (See

Table 2, Figure 3, and Appendix C Brighton Analytical, LLC for laboratory data analysis).

SB-1 SB-2 SB-3

Indoor Air Contact 5'-6' 2'-3' 2'-4'

Hazardous

Substance

(ppb)

Chemical

Abstract Service

Number

Statewide Default

Background Level

Residential Drinking

Water Protection

Criteria

Groundwater Surface

Water Interface

Protection Criteria

Soil Volatilization to Indoor Air

Inhalation Criteria

Infinite Source

Volatile Soil

Inhalation

Criteria (VSIC)

Finite VSIC for

5 Meter

Source

Thickness

Finite VSIC for

2 Meter

Source

Thickness

Particulate

Soil Inhalation

Criteria

Direct Contact

Criteria ug/kg ug/kg ug/kg

Arsenic 7440382 5,800 4,600 4,600 NLV NLV NLV NLV 7.20E+05 7,600 6,000 4,800 5,100

Barium 7440393 75,000 1,300,000 (G) NLV NLV NLV NLV 3.30E+08 3.70E+07 61,000 90,000 64,000

Cadmium 7440439 1,200 6,000 (G,X) NLV NLV NLV NLV 1.70E+06 5.50E+05 280 340 310

Chromium (III) 16065831 18,000 1.0E+9 (D) (G,X) NLV NLV NLV NLV 3.30E+08 7.90E+08 14,000 20,000 15,000

Copper 7440508 32,000 5,800,000 (G) NLV NLV NLV NLV 1.30E+08 2.00E+07 16,000 12,000 14,000

Lead 7439921 21,000 700,000 (G,X) NLV NLV NLV NLV 1.00E+08 4.00E+05 8,900 11,000 9,900

Mercury (Total) Varies 130 1,700 50 (M); 1.2 48,000 52,000 52,000 52,000 2.00E+07 1.60E+05 ND ND ND

Selenium 7782492 410 4,000 400 NLV NLV NLV NLV 1.30E+08 2.60E+06 270 ND 210

Silver 7440224 1,000 4,500 100 (M); 27 NLV NLV NLV NLV 6.70E+06 2.50E+06 ND ND ND

Zinc 7440666 47,000 2,400,000 (G) NLV NLV NLV NLV ID 1.70E+08 38,000 46,000 42,000

ND-Not detected NLV-Not likely to volatilize ID-Insufficient data NA-Not applicable

SB-4 SB-5 SB-6

Indoor Air Contact 2'-4' 2'-4' 2'-4'

Hazardous

Substance

(ppb)

Chemical

Abstract Service

Number

Statewide Default

Background Level

Residential Drinking

Water Protection

Criteria

Groundwater Surface

Water Interface

Protection Criteria

Soil Volatilization to Indoor Air

Inhalation Criteria

Infinite Source

Volatile Soil

Inhalation

Criteria (VSIC)

Finite VSIC for

5 Meter

Source

Thickness

Finite VSIC for

2 Meter

Source

Thickness

Particulate

Soil Inhalation

Criteria

Direct Contact

Criteria ug/kg ug/kg ug/kg

Arsenic 7440382 5,800 4,600 4,600 NLV NLV NLV NLV 7.20E+05 7,600 8,300 4,900 4,600

Barium 7440393 75,000 1,300,000 (G) NLV NLV NLV NLV 3.30E+08 3.70E+07 110,000 100,000 65,000

Cadmium 7440439 1,200 6,000 (G,X) NLV NLV NLV NLV 1.70E+06 5.50E+05 570 490 270

Chromium (III) 16065831 18,000 1.0E+9 (D) (G,X) NLV NLV NLV NLV 3.30E+08 7.90E+08 23,000 20,000 17,000

Copper 7440508 32,000 5,800,000 (G) NLV NLV NLV NLV 1.30E+08 2.00E+07 15,000 9,000 12,000

Lead 7439921 21,000 700,000 (G,X) NLV NLV NLV NLV 1.00E+08 4.00E+05 16,000 9,000 11,000

Mercury (Total) Varies 130 1,700 50 (M); 1.2 48,000 52,000 52,000 52,000 2.00E+07 1.60E+05 ND ND ND

Selenium 7782492 410 4,000 400 NLV NLV NLV NLV 1.30E+08 2.60E+06 360 ND 240

Silver 7440224 1,000 4,500 100 (M); 27 NLV NLV NLV NLV 6.70E+06 2.50E+06 ND ND ND

Zinc 7440666 47,000 2,400,000 (G) NLV NLV NLV NLV ID 1.70E+08 52,000 72,000 48,000

ND-Not detected NLV-Not likely to volatilize ID-Insufficient data NA-Not applicable

Groundwater Protection Ambient Air (Y) (C)

Ambient Air (Y) (C)

Table 5 - Residential Soil Data - MI 10 Metals 15055 Hubbell St, Detroit, MI 48227

Groundwater Protection

SB-7 SB-8 SB-9

Indoor Air Contact 2'-3' 2'-4' 2'-4'

Hazardous

Substance

(ppb)

Chemical

Abstract Service

Number

Statewide Default

Background Level

Residential Drinking

Water Protection

Criteria

Groundwater Surface

Water Interface

Protection Criteria

Soil Volatilization to Indoor Air

Inhalation Criteria

Infinite Source

Volatile Soil

Inhalation

Criteria (VSIC)

Finite VSIC for

5 Meter

Source

Thickness

Finite VSIC for

2 Meter

Source

Thickness

Particulate

Soil Inhalation

Criteria

Direct Contact

Criteria ug/kg ug/kg ug/kg

Arsenic 7440382 5,800 4,600 4,600 NLV NLV NLV NLV 7.20E+05 7,600 6,000 7,000 53,000

Barium 7440393 75,000 1,300,000 (G) NLV NLV NLV NLV 3.30E+08 3.70E+07 120,000 85,000 59,000

Cadmium 7440439 1,200 6,000 (G,X) NLV NLV NLV NLV 1.70E+06 5.50E+05 670 410 200

Chromium (III) 16065831 18,000 1.0E+9 (D) (G,X) NLV NLV NLV NLV 3.30E+08 7.90E+08 19,000 18,000 17,000

Copper 7440508 32,000 5,800,000 (G) NLV NLV NLV NLV 1.30E+08 2.00E+07 16,000 15,000 7,600

Lead 7439921 21,000 700,000 (G,X) NLV NLV NLV NLV 1.00E+08 4.00E+05 44,000 13,000 10,000

Mercury (Total) Varies 130 1,700 50 (M); 1.2 48,000 52,000 52,000 52,000 2.00E+07 1.60E+05 92 ND ND

Selenium 7782492 410 4,000 400 NLV NLV NLV NLV 1.30E+08 2.60E+06 290 290 360

Silver 7440224 1,000 4,500 100 (M); 27 NLV NLV NLV NLV 6.70E+06 2.50E+06 ND ND ND

Zinc 7440666 47,000 2,400,000 (G) NLV NLV NLV NLV ID 1.70E+08 91,000 50,000 50,000

ND-Not detected NLV-Not likely to volatilize ID-Insufficient data NA-Not applicable

Table 5 - Residential Soil Data - MI 10 Metals 15055 Hubbell St, Detroit, MI 48227

Groundwater Protection Ambient Air (Y) (C) rhart

Soil Boring Locations rhart Typewriter Landscaping rhart Typewriter rhart Typewriter rhart Typewriter SCALE (ft) rhart Typewriter Grassy lawn rhart Typewriter grassy lawn rhart Typewriter parking lot rhart Typewriter parking lot rhart Typewriter Ellsworth Street rhart Typewriter Lauder Street rhart Typewriter Chalfonte Street rhart Typewriter Hubbell Avenue rhart Typewriter Coyle Street rhart Typewriter property boundary rhart Typewriter Phase II ESA

15055 Hubbell Avenue Detroit, Michigan 48227 rhart Typewriter Cooley High School rhart Typewriter Drawing: rsh 2/12/2026 rhart Typewriter Heating Plant rhart Arrow rhart Arrow rhart Typewriter N rhart Typewriter

SB-1

rhart Typewriter

SB-2

rhart Typewriter

SB-3

rhart Typewriter

SB-4

rhart Typewriter

SB-5

rhart Typewriter

SB-6

rhart Typewriter

SB-7

rhart Typewriter

SB-8

rhart Typewriter

SB-9

rhart Typewriter Arsenic 53,000 ppb, likely treated wood rhart Typewriter

SB-9

rhart Typewriter Arsenic 8,300 ppb rhart Placed Image rhart Placed Image rhart Placed Image rhart Typewriter Church Property

6.0 SUMMARY AND CONCLUSIONS

Based upon the analytical results, we have determined that two (2) areas of soil are contaminated above the state's Part 201 Generic Residential Cleanup Criteria, as applicable. One analyte was detected above

Direct Contact criteria; Arsenic. Arsenic was detected above Direct Contact criteria (7,600 ppb), in SB-4

(2’-4’) at 8,300 ppb, and in SB-9 (2’-3’) at 53,000 ppb. However, both areas can be identified as at a depth of fill material beneath a concrete parking lot at SB-4, and at the area of SB-9, it is likely that treated wood debris is in this area from a former electrical/telephone pole on the southeast grassy area;

see picture below:

Source: Historic Detroit.org Wayne State University’s Virtual Motor City Collection, 1927.

Since the 1930’s, arsenic (As) was used to treat wood against decay, and was banned by the US EPA in

2002 for wood treatment. Arsenic is abiotic and does not respond to natural bio-attenuation.

ETC warrants that no information or documentation was deleted, omitted, or changed that would otherwise cause the Detroit Public Schools and its agencies and authorities to reach a different conclusion. Furthermore, ETC understands that the Detroit Public Schools and its agencies and authorities rely upon the overall completeness, accuracy, and conclusions in this report and hereby provides reliance on the contents presented herein. See Figure 1. Property Location Map.

7.0 RECOMMENDATIONS

All detected analytes are below residential criteria for exposure pathways, except Arsenic. One analyte was detected above Direct Contact criteria in SB-4 (2’-4’) at 8,300 ppb, and in SB-9 (2’-3’), at 53,000 ppb.

ETC does not recommend additional drilling and sampling. The arsenic is confined to the treated wood debris in the southeast area, and beneath the concrete parking lot. The depth of the fill and covering will inhibit access to direct contact with the soil.

In the event, that excavation and/or demolition activities are in the area of the northwest parking lot

(estimated 1,900 cubic yards) and treated wood debris (estimated 1 cubic yard), ETC recommends the soil be excavated and transported for offsite disposal.

Worker notifications of arsenic direct contact levels should be provided to onsite crews.

APPENDICES

APPENDIX A

Site Specific Health and Safety Plan

SITE SPECIFIC HEALTH AND SAFETY PLAN for

Subsurface Soil Sampling Plan

At

COOLEY HIGH SCHOOL

15055 HUIBBELL AVENUE

Planned Field Days:

February 11, 2026

Prepared for:

Ms. Alycsa Valentine, Administrations Detroit Public Schools 5057 Woodward Avenue Detroit, Michigan 48202

Prepared by:

38900 West Huron River Drive

Romulus, Michigan 48174 734-955-6600 (phone); 734-955-6604 (fax)

ETC Project No. 287920

DO NOT REMOVE FROM COMMAND VEHICLE

SITE SPECIFIC HEALTH AND SAFETY PLAN

Subsurface Soil Boring Plan

15055 Hubbell Avenue

TABLE OF CONTENTS

SECTION PAGE

1.0 INTRODUCTION 1

1.1 Purpose 1

1.2 project location 1

2.0 SCOPE OF WORK 2

2.1 Soil Sampling Plan 2

2.2 Decontamination Procedures 3

3.0 PHYSICAL HAZARDS 6

3.1 Slip/Trip Hazard 6

3.2 Excavations 6

3.3 Construction Site Safety 7

3.4 Overhead Work/ Falling Objects 7

3.5 Heat Stress and Cold Stress 7

4.0 CHEMICAL HAZARDS 10

4.1 Petroleum Hydrocarbons 10

4.2 Chlorinated Solvents 10

4.3 Heavy Metals 11

4.4 Biological Hazards COVID-19 Policy 11

5.0 12

HAZARDOUS COMMUNITCATION (HAZCOM)

5.1 Local Emergency Phone Contacts

5.2 MAP TO HOSPITAL providing HAZMAT Unit

MAP TO HOSPITAL on Page 13 Henry Ford Hospital (7 miles)

1.0 INTRODUCTION

Environmental Testing and Consulting, Inc. (ETC) was retained by Ms. Alycsa Valentine, a representative of Detroit Public Schools (client) to perform a Phase II Environmental Site Assessment (ESA) of the

Cooley High School property, located at 15055 Hubbell Street, in Detroit, Michigan (Wayne County), Parcel ID Number: 22040004 (hereafter referred to as the “subject property”). The subject property is 651 feet above sea level with coordinates Latitude (north) 42° 24’ 1.62” or 42.4004510 and Longitude (west) –

(minus) 83° 11’ 28.42” or -83.19123; USGS Quadrangle, Royal Oak, Topographic Map, 2019.

1.1 Purpose

The purpose of the Site-Specific Health and Safety Plan (HASP) is to provide information as to the scope of work to be performed, Subsurface Soil Sampling Plan, at the subject property to identify potential physical and chemical hazards, in accordance with OSHA 1910.120 of the

OSHA Standard for Hazardous Waste Sites Activities and NIOSH/OSHA/USCG/EPA

Occupational Safety and Health Guidance Manual for Hazardous Waste Site Activities.

1.2 Project Location

This Phase II Environmental Site Assessment (ESA) of Cooley High School property is located at

15055 Hubbell Avenue, Detroit, MI 48227, and in conformance in accordance with the practices of ASTM Standard 1903-19 for Environmental Site Assessments (ESA). The purpose of the ESA is to perform a subsurface site investigation based on recognized environmental conditions

(RECs) identified from a Phase I ESA completed by ETC, dated January 26, 2026, to determine the absence or presence of impact from adjacent properties’ historical use.

2.0 SCOPE OF WORK

The objectives of this ESA is to provide Biased Soil Sampling method based on adjacent properties with historical uses as either auto repair shop, dry cleaners, and filling/gas station. The ESA includes nine (9) soil borings using a 6600 Tractor-mounted Geoprobe® drilling rig, push-probe method, to the depth of a

“confining clay barrier” encountered at 5.5 to 6 feet depth and compare soil sample analysis to the accepted Michigan EGLE's Part 201/213 Generic Residential Screening Criteria provided on Michigan

EGLE's Table 2. Soil Residential comparison tables on MI EGLE’s website.

2.1 Subsurface Soil Sampling Plan

This Sampling & Analysis is in conformance with the scope, and in accordance with the practices of ASTM Standard E1903-19 for Environmental Site Assessments (ESA). The purpose of the

ESA is to perform a subsurface site investigation based on historical uses of adjacent properties, to the depth of natural clay; 5.5 feet depth or 6 feet depth. Nine (9) soil borings will be drilled mainly along the perimeter of the subject property, and one (1) discrete/grab soil sample will be collected from each boring, and analyzed for the following:

• Volatile Organic Compounds (USEPA method 8260)

• Semi-volatile Organic Compounds (USEPA method 8270)

• Polychlorinated Biphenyls (USEPA method 8081)

• 10 Michigan metals (various methods)

A composite sample is no longer required for a sieve analysis by American Society of Testing and

Materials (ASTM) Standard D422, and Fraction of Organic Carbon (FOC) by ASTM D2974-00, unless a known source of mercury (Hg) is present.

The soil sampling includes nine (9) soil borings advanced using a 6600 Tractor-mounted

Geoprobe® drilling method to the depth of a “confining clay barrier” encountered at 5.5 to the depth of each boring at 6 feet depth. The following soil sample collections are listed with the potential sampling depth of each sample:

• SB-1 (1-2')

• SB-2 (3-4')

• SB-3 (4-5').

Geoprobe® drilling is a push-probe drilling technique that uses a 4-foot core continuous (CO) dedicated disposable sample sleeve, typically, a 1-inch stainless steel core device. Prior to drilling activities, the push-probe method will be modified to a percussion push-probe method for drilling a 2-inch Macro Core stainless steel sampler with a dedicated 2-inch sample sleeve due to the quantity of soil samples needed to adequately analyze for chosen analytes and to core through debris of concrete and bricks found in soil within the subsurface, if any. Since drilling will to the depth of a clay barrier, an additional 4-foot core will be added upon reaching 4 feet to push-probe, if needed, to the desired sampling depth and confirm the presence of “blue clay” at depth across the property. The core device was decontaminated prior to drilling and steam-cleaned off-site.

2.2 Decontamination Procedures

The Personal Protective Equipment Level D will be used for the duration of this scope of work, due to the non-intrusive surface soil sampling plan completed along the subject property. These procedures provide for the donning and doffing of Personal Protective Equipment (PPE).

Decontamination procedures may vary per site, and certain procedures can be adjusted, omitted, or added depending on site-specific conditions. A Phase I Environmental Site Assessment usually is a site walk through and photographs that does not require decontamination procedures.

However, ETC personnel must follow ETC policy for entering a site, i.e. COVID-19 procedures and health monitoring, face masks.

These procedures provide for the decontamination of equipment used in the sample collection on hazardous substance sites by both ETC personnel and subcontractors. Decontamination procedures may vary per site, and certain procedures can be adjusted, omitted, or added depending on site-specific conditions. On a hazardous substance site, three (3) distinct zones are created for PPE and equipment decontamination:

Exclusion Zone or “Hot Zone” (usually a 30-foot radius around the work zone) Contamination Reduction Zone (at the perimeter of the hot zone to exit) Support Zone (area that is free from contamination and may safely be used for staging and planning)

Equipment Decontamination Procedures, unlike PPE decontamination procedures performed in the Contamination Reduction zone, are part of the activities performed in the Hot Zone to clean equipment between sample depths or locations.

However, ETC personnel must follow ETC policy for entering a site, i.e. COVID-19 procedures and health monitoring, face masks.

• Establish the 3 zones; Exclusion (hot) zone, Contamination Reduction Zone, and Support zone.

• Upon entering the site, if more than one ETC personnel is onsite, and/or meeting with subcontractors, the ETC-designated Site Health and Safety Officer may provide a

“tailgate meeting,” to discuss the potential hazards with ETC personnel and subcontractors and sometimes the client, if present.

• In the Support Zone, calibrate monitoring equipment; Photoionization detector (PID), or a flame ionization detector (FID), and any other electronic measurement equipment used on site (4-way meter). This information is useful in determining any upgrades to PPE

Level; Level D low level, Level C medium level, Level B higher level, and Level A extreme hazards or PFAs. PFAs site sampling is sensitive to the materials in PPE, and requires special suits.

• Donning and Doffing Reusable and Disposable PPE Level D (most sites): double up on nitrile gloves to provide a layer of protection and change the outer glove for each sample by turning the glove inside out to prevent contaminating the inner glove, if the gloves are not reusable; if using reusable rubber gloves as the outer glove, then only one pair of nitriles is needed for an inner glove. In summer, you may want to use a cotton glove liner under the inner glove, to prevent sweat build up, and in winter for warmth.

• General Decontamination 1 wash and 2 rinses in the Contamination Reduction zone:

Use three 5-gallon buckets with fresh water and bristle brushes for gloves and sampling equipment.

o In the first bucket, use fresh water with a non-phosphate detergent, o the other 2 buckets should have fresh water for a double rinse.

o If wearing rubber booties, use 3 small tubs to stand in, use the first tub with water and non-phosphate detergent, and step into the wash.

• Using a bristle brush, scrub the booties of dirt, then step into the second tub for a first rinse,

• Then step into the third bucket for a final rinse.

• Doff booties before gloves and discard into an appropriate waste liner at the end of the shift. Keep disposable contaminated PPE in a waste liner in the Support zone.

• PPE Level C and B: Donning Tyvek suit and booties and gloves, o Don the Tyvek suit first, o then the booties, and tape the edge of the booties to the Tyvek suit (leave a “flap” folded over for easy removal).

o Don the inner nitrile gloves, and o then the outer gloves, tape the gloves to the edge of the Tyvek sleeve leaving a flap for easy removal.

o Don the respirator, usually a combination purple/yellow cannister/cartridge, and check the seal on each cartridge to ensure appropriate seal. This can be done by placing your hand over each cartridge one at a time and breathing in and out.

• Enter the Exclusion zone and perform work. Use the buddy system. Follow all health and safety procedures as outlined in the ETC HASP; heat stress, cold stress, drilling safety, and other.

• Doffing PPE Level C and B; Enter the Contamination Reduction zone and decon gloves and booties, o remove the tape from booties and gloves, o First, remove the Tyvek suit as will likely be covered in dirt.

o Remove the booties turning them inside out.

o Then, remove the outer gloves by turning them inside out.

o Then, remove the respirator.

o Lastly, remove the inner glove to keep from exposure and avoid spreading contamination.

• Clean the respirator using lint-free wipes and a disinfectant (rubbing alcohol is usually used), and discard the cartridges. Cartridges only work at certain concentration levels and for so long before “breakthrough”. Sometimes reusing them is appropriate, but usually a new cartridge needs to be used each day. During site activities, ETC personnel will have a photoionization detector (PID) to monitor ambient levels in the hot zone to help determine the level of PPE and appropriate cartridges.

3.0 PHYSICAL HAZARDS

3.1 Slip/Trip Hazards

A Slip/Trip Hazard can occur where field activities involve exposure to uneven walking surfaces, wearing PPE booties, weather conditions (snow, rain, ice), vegetation, holes in the ground, loose boards, or protruding objects.

Be aware of footing at all times and clear the work zone of potential slip/trip hazards. When working in cold weather conditions, be aware of ice and snow and wear appropriate footwear.

Provide appropriate lighting in the work area. If working at night, mobile light units can be used to light an area. No night work will be performed for the duration of this scope of work.

3.2 Excavations/Drilling

OSHA defined excavation and trenching as any man-made cut, cavity, trench, or depression in the earth’s surface formed by earth removal. A trench is further defined as narrow excavation that is deeper than it is wide, and is no wider than 15 feet.

For safe entry, ETC personnel will not enter into an excavation or a trench that is 4 feet or deeper, unless the sides have a slope at least 1:1 slope (1:2 slope in sand for arid areas).

Shielding is the use of trench boxes that prevent soil cave-ins in trenches. If soil sample collection is required, the use of ladders, steps, or ramps may be used, as long as the sloping prevents cave-ins.

Excavations and trenches may possibly be filled with water, and ETC personnel will not enter an excavation that has standing water in the location.

Load limits of heavy equipment must be at least 2 feet away from the edge of a trench or excavation, prior to entry of personnel for sampling.

At the end of a shift, the open trench or excavation must be barricaded using bright fencing to prevent anyone from entering the open trench. No excavations will be performed for the duration of this scope of work.

3.3 Construction Site Safety

Potential hazardous substance sites have construction safety protocols are provided in 29 CFR

Part 1926 – Subpart Q and OSHA 29 CFR 1910.146. The type of construction site safety issues that will be potentially causing and exposure include, concrete and cement mixes used by drillers to fill a boring or an anulus in a monitoring well, removal of concrete slabs, shoring excavations, masonry and concrete work, construction loads with heavy equipment (drill rigs, excavators, etc.), blight buildings. No construction will be performed for the duration of this scope of work.

3.4 Overhead Work/Falling Objects

OSHA provided safety information for falling objects on a job site under OSHA 1926.759 and subpart R. To avoid exposure to falling objects, ETC personnel will wear hard hats on the job site, especially while performing drilling and sampling activities, or if entering a building that requires hard hats by client policy or by potential for working near overhead and a risk exists for falling objects. This Surface Soil Sampling Plan does not pose an overhead risk.

3.5 Heat Stress and Cold Stress

ETC has developed preventative measures to avoid exposure to Heat Stress and Cold Stress that is considered a potential Physical hazard.

PREVENTING HEAT-RELATED ILLNESSES (HEAT STRESS)

When the body heats up faster than it can cool itself, mild to severe illnesses may develop. It’s important to recognize the symptoms of heat-related illnesses and understand how to prevent, control and respond to their effects.

Air temperature, humidity and clothing can increase the risk of developing heat related illnesses, especially while wearing PPE without cooling vests.

How can you prevent or control heat related illnesses?

Drink water - Drink small amounts of water frequently, about 48 - 64 ounces daily. Especially when performing rigorous work activities or during hotter months. (Alcohol increases the loss of body fluids.)

Limit exposure time and/or temperature - Try to schedule hot jobs for cooler times of the day or cooler seasons of the year. Take rest breaks in cool areas.

• Add more workers to reduce workload or reduce the workday.

• Acclimatization - Gradually adapting to heat will reduce the severity of heat stress.

• Engineering controls - Mechanize heavy jobs or increase air movement with fans or coolers.

• Wearing loose, lightweight clothing - Clothing can affect heat buildup.

Salt tablets should not be used - Taking salt tablets can raise blood pressure, cause stomach ulcers, and seriously affect workers with heart disease.

Someone with a mild reaction to heat may have a rash called "prickly heat" or painful muscle spasms, called heat cramps, during or after activity. A mild reaction may also include fatigue or dizziness. You may notice a change in physical or mental performance and an increase in accidents. A person with a moderate reaction or heat exhaustion will have some or all of the following symptoms: excessive sweating, cold, moist, pale or flushed skin, thirst, extreme weakness or fatigue, headache, nausea, lack of appetite, rapid weak pulse, or giddiness and if not properly treated, the victim may collapse.

Anyone with mild or moderate symptoms should be moved to a cool, shaded place with circulating air. They should lie down and, if conscious, be given small sips of cool water at frequent intervals. If symptoms continue, a doctor should be called.

SYMPTOMS of HEAT STRESS AND HEAT STROKE

In severe cases of heat illness, a heat stroke may result. The following may occur to indicate

Heat Stress:

Flushed/Red face

Severe Headache

Rapid Breathing

Sweat (if no sweat, but dry and hot this is a sign of a dangerous Heat Stroke)

Lethargic

Speech is slower

PREVENTING COLD-RELATED ILLNESSES (COLD STRESS)

Working in the cold for prolonged periods of time can cause many physical problems. You should take precautions to prevent cold stress in the workplace. There are several types of cold stress that a person can suffer.

Hypothermia is the most common type of cold stress. Hypothermia occurs when your body temperature drops from prolonged exposure in a cold environment. Your body stores energy and that keeps you warm at first but as you stay in the cold your body burns that energy and cannot replace it as quickly. That is how your temperature drops below normal.

Some of the Symptoms of Hypothermia are a slowed heart beat and irregular breathing. You could also become drowsy or feel extremely exhausted. Many people often suffer from memory lapse and difficulty speaking after hypothermia has set in. If you suspect a person is suffering from hypothermia, call for medical attention immediately. While waiting for help you should keep the person in a warm room. Remove any wet clothing and wrap them in a blanket. Give them a warm drink such as hot tea. This will help raise their body temperature.

The second most popular form of cold stress is Frostbite. Is caused by the body literally beginning to freeze and usually starts in the toes or fingers which lose heat the fastest. In severe frostbite cases the tissue is permanently damaged and has to be amputated to stop the spread of dead tissue.

There are a few symptoms of frostbite the first is numbness of the area. Second is tingling or aching feelings and the third is a blue-ish waxy skin. If someone is showing symptoms of frost bite call for medical help as soon as possible. Try not to use the area of body that is suffering frostbite it is your hands try not to touch or pick up things. If your feet are frostbitten do not continue to walk on them it could cause more damage. Use warm water to help restart circulation; never rub the area it could cause the frostbite to spread. Never use a fireplace, stove or other heat source to warm up. Since the skin is numb you could get to close and cause burns.

HOW TO PREVENT COLD STRESS

There are simple and easy ways to prevent cold stress in the workplace. It is really all about working safely and wearing the right protective gear this is the best way to prevent cold stress in the workplace.

• Wear insulated work boots and wool socks.

• Never wear tight clothing. You have to allow room for air to circulate.

• Keep a change of socks and other clothing to switch into if anything you are wearing gets wet.

• Wear gloves and a hat at all times

Keep warm be drinking hot liquids such as tea, coffee and hot chocolate. You can also eat soup at lunch to help warm up your core temperature.

If at all possible, take your breaks in a warm area. If there is no building available you can sit in your truck with the heat on.

Preventing cold stress in the workplace is very important. Many people are unaware that the cold can seriously injury or in extreme cases kill if the proper safety precautions are not followed

4.0 CHEMICAL HAZARDS

The potential exposure for this site investigation includes chemical substances in surface soils;

PPE Level D, will be used for the duration of this scope of work. Certain Personal Protective

Equipment (PPE) Levels have been established by OSHA 1910.120 and are as follows:

PPE Level D (gloves and steel toe work shoes, COVID-19 face mask) PPE Level C (gloves, steel toe work shoes, Tyvek suit, and appropriate chemical cartridge

Respirator/mask) PPE Level B (gloves, steel toe work shoes, Tyvek suit, and Self-Contained Breathing

Apparatus (SCBA)) PPE Level A (extreme hazards -radiation, biohazards encapsulated suit with SCBA, and PFAs sites)

A Respirator is used for PPE Levels C, B, and A, and have specific methods to determine the appropriate cartridge depending on the hazardous chemicals anticipated during field activities.

Where unknown hazards and PPE Level C or B is used, a combination purple/yellow chemical cartridge is used in most conditions that will be found at hazardous substance site and filter’s petroleum and chlorinated substances. ETC will establish what is appropriate for each site.

This scope of work will require PPE Level D where gloves are the most important procedure to follow to avoid exposure and avoid spreading contamination. No volatile organic compounds

(VOCs) are anticipated for this surface soil sampling plan, inhalation exposure to VOCs is minimized for the duration of this scope of work.

4.1 Petroleum Hydrocarbons

Petroleum hydrocarbons are a potential exposure for the subject site, however only at depths to natural clay of 5 to 6 feet. Several compounds are in petroleum hydrocarbons (gasoline and diesel) and include Benzene, Toluene, Ethylbenzene, Xylenes, and methyl-tert-butyl-ether

(MTBE), benzo(a)anthracene, and benzo(a)pyrene. The compounds, Benzene, poses the most long-term threat, as it is designated as a carcinogen (cancer-causing) for gasoline, and

Benzo(a)pyrene, a polycyclic aromatic hydrocarbon in diesel, is a carcinogen.

4.2 Chlorinated Solvents

Chlorinated solvents/compounds are a potential exposure for the subject site. Several compounds are in chlorinated solvents (degreasers, coolants, paint thinners, dry cleaners, etc.)

and include carbon tetrachloride, trichloroethylene, tetrachloroethylene, methylene chloride, methyl ethyl ketone (MEK), vinyl chloride, and naptha. The compound, MEK, and many chlorinated solvents, pose a long-term threat, as they are designated as a carcinogen (cancer-causing) and are highly soluble in water.

Polychlorinated Biphenyls (PCBs) are manmade with carbon, hydrogen, and chlorine compounds that were historically used in electrical transformers and capacitors, and electrical apparatus.

Surface soil samples may be collected discretely, and composited in areas of the former electrical switches at crossroads in the first 6-inches of soil.

4.3 Heavy Metals

Heavy metals can become airborne in dust particles and are a potential exposure for the subject site. Several inorganics (chemical elements) that are discussed in OHSA 29 CFR 1019.120 include Arsenic, Beryllium, Cadmium, Hexavalent Chromium, Lead, and Mercury. The most long-term health effect is to Arsenic (As), Hexavalent Chromium (Cr6), and Cadmium (Cd), as these inorganics are known carcinogens (cancer-causing).

The anticipated inorganic substances for this site are Lead (Pb) from leaded-gasoline backfill.

ETC will minimize exposure to airborne dusts by uncovering small sections to collect surface soil samples beneath turf, and other surface coverings.

4.4 Biological Hazards COVID-19 Policy

ETC personnel will adhere to company and client COVID-19 Policies and practice social distancing (maintain 6 feet from other persons), and wear face masks (KN95) during field activities, and while on breaks, if social distancing is not possible.

5.0 HAZARD COMMUNICATIONS (HAZCOM)

ETC has a Company Hazard Communications Program (HAZCOM), in accordance with OSHA

29 CFR 1910.1200 as part of an overall safety and health program implementation. The

HAZCOM program provides the following, but not limited to:

• Hazard analysis for each site task and operation contained in the Site-Specific Work

Plan.

• Employee training assignments.

• Designation of PPE for use by employees based on job hazard analysis.

• Site Control measures for minimizing and avoiding exposure to hazardous situations.

• Requirements for Decontamination Procedures for both PPE and Equipment.

5.1 Local Emergency Phone Contacts

For this Site-Specific HASP, ETC has provided local emergency departments that can be contacted in the event of an emergency:

Map to HOSPITAL with a HAZMAT Unit

The subject properties are located approximately 7 miles from HOSPITAL NAME Hospital.

Local Emergency Contact Phone Numbers

LOCAL HOSPITAL (5 miles dist.) (313) 916-2600

Detroit Fire Department 911

LOCAL County Sheriff 911

LOCAL City Police 911

LOCAL Ambulance 911

Imagery ©2026 Airbus, CNES / Airbus, Landsat / Copernicus, Maxar Technologies, Map data ©2026 Google 1 mi

2/12/26, 10:05 AM 15055 Hubbell Ave, Detroit, MI 48227 to Henry Ford Hospital - Google Maps https://www.google.com/maps/dir/15055+Hubbell+Ave,+Detroit,+MI+48227/Henry+Ford+Hospital,+2799+W+Grand+Blvd,+Detroit,+MI+48202/@42.3803881,-83.1782854,12535m/data=!3m3!1e3!4b1!5… 2/3

APPENDIX B

Soil Boring Logs

Soil Boring / Well Log

Project Name: Cooley High School Geologist / Engineer: R. Hart

Project Number: 287920 Drilling Co: Terra Probe Environmental, Inc.

Date: February 11, 2026…