Appendix B1.2 ACM Re-inspection Report.pdf

Asbestos Re-inspection Report

For

HANGAR BUILDING #1

Muniz Air National Guard Base, Carolina, P.R.

Prepared for: _____________________

Client Name: _____________________

Survey Dates: July 27, August 2nd and August 5, 2016

Inspectors: ______________________ __________________________ Juan Enrique Santiago Norma I. Torres Asb. PREQB I.D. # ASB-0415-0168-SI Asb. PREQB I.D. # ASB-0415-0168-SI

ASBESTOS RE-INSPECTION – HANGAR BUILDING #1, MUNIZ ANG, CAROLINA, PR - AUGUST 2016

Table of Contents

Section Page

Introduction 3

Summary of Findings 4

Asbestos Survey Report 4

Asbestos-Containing Findings 4

Survey Protocol 5

Sampling Procedure 5

Regulatory Review 6

Conclusion 9

Limitations 11

Attachment 1 – Site Location Map

Attachment 2 – Representative Pictures

Attachment 3 – Asbestos Location Diagram (not to scale)

Attachment 4 – Laboratory Bulk Samples Analysis Report

Attachment 5 – Inspectors and Laboratory Accreditations

I . INTRODUCTION

In compliance with the environmental due diligence, an Asbestos survey was required by the PR Air National Guard (PRANG) in the Hangar Building #1, located at Muniz Air National Guard Base, Carolina, P.R. (“Site” as shown on the figure in Attachment 1). The field work was conducted between July and August 2016 in coordination with Jacobs as project managers. A previous asbestos report from the site was provided during the agreement process.

The scope of work conducted by Nortol Environmental & Occupational Safety, Inc. under contract with the client in this project included the following tasks:

Re-inspection for suspect Asbestos Containing Materials (ACMs);

Sampling and analyses of suspect ACMs, if any;

Prepare this Re-Inspection report with findings and suggestions.

The Hangar building #1 was constructed by 1956 as a main hangar facility. This is a two-story combined steel/concrete building of approximately 64,116 square feet in size. No major afterward renovations were noted.

The functional spaces of the structure include an airplane repair/maintenance area, restrooms, offices, shops and utilities spaces. The interior partition walls consist of concrete or gypsum panels. Most of the floors are bare concrete but others are covered with vinyl floor tiles, and/or carpet or hard tiles. The main ceilings are concrete in some cases cladded with hanging cardboard tiles. The air conditioning system consists of packaged air handling units with pipes cladded in neoprene rubber or un-insulated. The AC ductwork had foil tape applied at the seams. The building does not have a heating unit.

At the time of the survey, the site was occupied under normal operations. See Attachment 2 for representative pictures of this project.

I I . SUMMARY OF FINDINGS

A. Vinyl floor tiles and/or mastics

The following areas with vinyl floor tiles and mastic (in some cases) were analyzed resulting positive to asbestos-containing material (ACM):

Table 1.0 – Areas with vinyl asbestos floor tiles

Location Room (s) * Approx. Amount

(sq. ft.)

first floor, north area Areas 129-131, 135, 132, 133, 134 1,400 second floor, northeast Areas 224, 225 700 second floor, northeast Area 221 100 second floor, north Area 214 850 second floor, northwest Areas 210, 211, 212, 213, Mech. Rm 950 second floor, southwest Areas 233, 234, 235 800 second floor, south Areas 245A, 245B, 246, 247 650 second floor, south Area 248 650 second floor, southeast Areas 250, 251, 252, 253, 249 950 *as identified in the supplied drawing – see Attachment 3

B. Thermal System Insulation

Also, the domestic water piping across the ceilings of the first floor (west, south and north wings) have thermal system insulation positive to asbestos. The estimate amount is 1,200 square feet and the piping range diameters are between 3 and 5 inches.

C. Corrugated panels (hidden within walls)

Finally, the main wall boards were inaccessible in the 2nd floor to confirm the assumed ACM corrugated panels. According to the previous survey report, interviews and testimonials, these cement boards are totally cladded within other materials. The estimated amount is undetermined.

Refers to Attachment 3-Diagram for additional information.

Other suspect materials present at the building such as vinyl floor tiles (others than positive) and roofing system were analyzed resulting negative to asbestos content.

I II . ASBESTOS SURVEY REPORT

A. Asbestos-Containing Findings:

This survey identified various asbestos-containing materials throughout the Hangar building #1, including floor tile and mastic, piping insulation and joints, and cement boards. Like many types of construction products manufactured before 1980-90, mentioned materials usually contained asbestos fibers. These fibers not only provided fire resistance, they also made the materials stronger and more durable.

The condition of the observed ACM throughout the site was generally good; a few locations observed within the areas showed some damaged ACM that was not obviously scratched sufficiently to become friable without further disturbance, including floor tile on some areas of the second floor (damage appeared to be related to general wear and tear on floor surfaces over time - Photographs A in Attachment 2) and pipewrap noted in the first level. The damaged pipewrap located within the first floor, (Photographs B in Attachment 2), may require abatement or encapsulation to minimize its human health risk. Observations of the enclosed panels areas located within the second floor walls do not showed damage (Photographs C in Attachment 2). The isolation of this material within an enclosed area limits the risk of human health effects from this condition;

however, if this area is to be disturbed, proper inspection and abatement procedures should be followed.

The Hangar building #1 have different types of vinyl floor tiles (single or multi-layered) installed either under carpets or exposed. Twenty-four (24) samples of these tiles were taken and analyzed applying the homogeneous concept. Each layer was separately analyzed for a total of sixty-three (67) analyses related to vinyl floor tiles. The vinyl asbestos floor tiles are confined to some areas in the first and second level of the building.

These finding may responds to the different history in renovation activities.

The thermal system insulation from the domestic water piping localized above the ceilings (plenum) across the first level of the building are positive to asbestos. Although was not feasible to follow the location of the pipes there is evidence that are present at the west, south and north wings of the building.

According to the available documents and testimonials the structural walls at the second level consists of asbestos-cement panels. The panels are cladded by other materials and cannot be observed without destroy the existing enclosing.

The roof sealer system of the building is not considered suspect to ACM and validated by the sample analysis negative to asbestos.

Attachment 3 includes the diagram showing the approximated location of these components. The description of the tested materials is included in the Table 2.0.

Table 2.0

Material Location Classification/Assessment Approx.

Amount

Vinyl floor tiles and/or mastics - ACM

Localized areas in 1st and 2nd floor. See

Section II.

Miscellaneous, Category I, Non-friable material in good or regular condition 7,050 ft2

Thermal System Insulation - ACM

Across west, south and east wings of the first floor

Thermal System Insulation, Regulated material, friable material in regular condition 1,200 ft2

Wall panels (Transite®) - ACM

Exterior north, south, east and west – second level

Miscellaneous, Category II, non-friable material undetermined

Other materials present in the building (i.e. gypsum cardboards, floor hard tiles, roof membrane, other type of VFTs) were assessed resulting negative or non-suspect to asbestos. In the EPA-AHERA regulation [40 CFR 763.86(b)(4)], all fiberglass, foam glass and rubber material/insulation were also considered to be non-asbestos containing.

Laboratory report for the analysis of asbestos in bulk samples is included as Attachment

4. The inspectors and laboratory accreditations are included as Attachment 5.

B. Survey Protocol:

This activity was conducted following the latest protocol for assessing materials suspected of containing asbestos as defined by the U.S. Environmental Protection Agency (EPA). It involved a visual walk-through inspection of the accessible areas of the buildings in order to develop an inventory of Suspect Asbestos Containing Building Materials (ACBM) homogeneous materials.

C. Sampling Procedure:

The typical technique used for sampling the suspected asbestos materials is designed to minimize possible fiber release and in turn possible contamination of surrounding areas.

Representative suspected material samples, are collected in accordance with the EPA’s AHERA/ASHARA guidelines and procedures presented in the Guide for Controlling Asbestos Containing Materials in Building (EPA 560-6-85-024, June 1985) and characterized following the National Emission Standard for Hazardous Air Pollution (NESHAP), subpart M-Asbestos, 40 CFR Part 61-Standard for Demolition and Renovation.

Samples of the homogeneous accessible materials are collected in quantities sufficient to determine asbestos content, and then placed in airtight bags. The bagged samples are properly collected, labeled, and identified. A Chain of Custody form is completed for collected bulk samples which are analyzed by an independent laboratory using the Polarized Light Microscopy (PLM) method. The laboratory utilizes dispersion staining techniques according to US EPA method 600/M4-82-020 incorporating visual estimates of identified material percentages.

D. Regulatory Review:

According to NESHAP’s standards (40 CFR 61.141), ACBMs are classified into following categories:

(i). Category I Nonfriable asbestos-containing material (ACM)- means asbestos containing packs, gaskets, resilient floor covering, asphalt roofing products containing more than one percent (1%) asbestos as determined using the method specified in Appendix E, Subpart E, 40 CFR Part 763, Sec 1, Polarized Light Microscopy.

(ii). Category II Nonfriable ACM means any material, excluding Category I nonfriable ACM, containing more than one percent (1%) asbestos as determined using the method specified in Appendix E, Subpart E, 40 CFR Part 763, Section 1, Polarized Light Microscopy that, when dry, cannot be crumbled, pulverized, or reduced to powder by hand pressure.

(iii). Regulated asbestos-containing material (RACM) means: (a) friable asbestos material, (b) Category I nonfriable ACM that has become friable, (c) Category I nonfriable that will be or has been subjected to sanding, grinding, cutting, or abrading, or (d) Category II nonfriable ACM that has a high probability of becoming or has become crumbled, pulverized, or reduced to powder by the forces expected to act on the material in the course of demolition or renovation operations regulated by this subpart.

According to EPA-AHERA/ASHARA’s standards (40 CFR Part 763), ACBM’s are classified into three categories:

(i). Surfacing material (SM)- Interior ACBM that has been sprayed on, troweled on, or otherwise applied to surfaces (structural members, walls, ceilings, etc.) for acoustical, decorative, fireproofing, or other purposes. This includes acoustical plaster, hard plasters (wall or ceiling), fireproofing insulation, spray-applied or blown-in thermal material, joint or patching compound (wall or ceiling), and textured paints or plasters.

(ii). Thermal System Insulation (TSI) Insulation used to control heat transfer or prevent condensation on pipes and pipe fittings, boilers, breeching, tanks, ducts, and other parts of hot and cold water systems; heating, ventilation, and air conditioning (HVAC) systems; or other mechanical systems. These insulation materials include pipe lagging, pipe wrap, HVAC duct insulation, block insulation, cements and muds, and a variety of other products such as gaskets and ropes.

(iii). Miscellaneous material (MM) Other, mostly nonfriable products and materials found on structural components, structural members or fixtures, such as floor tile, ceiling tile, construction mastic for floor and ceiling materials, sheet flooring, fire doors, asbestos cement pipe and board, wallboard, acoustical wall tile, and vibration damping cloth. "Miscellaneous materials" do not include thermal system insulation or surfacing materials.

V. CONCLUSION

An asbestos re-inspection was achieved for the Hangar Building #1, located at Muniz Air National Guard Base, Carolina, P.R. The results of the asbestos survey indicated that some of the vinyl floor tiles and mastic (in some cases), thermal system insulations and wall panels installed at the building are positive to asbestos. In Puerto Rico, the following regulations and guidelines are applicable to the ACMs.

Operation and Maintenance Program

According to the current asbestos regulations, ACMs need not be removed if:

• It is in good condition.

• It not scheduled demolition or renovation activities that may affect the ACMs.

Renovation and Demolition USEPA NESHAP 40 CFR 61, Subparts A and M

The USEPA NESHAP regulations for asbestos apply to certain demolition and renovation projects in facilities containing ACM and/or presumed ACM. The NESHAP rule usually requires that all friable ACM and some categories of non-friable ACM be removed before a building is demolished, and may require localized removal before or as part of a renovation. For renovation projects where friable ACM will be disturbed, the NESHAP rule may require appropriate work practices or procedures for the control of emissions.

NESHAP also requires that the USEPA and the PR Environmental Quality Board be notified before certain renovations impacting RACM begin. When ACM is removed or disturbed during renovation, the Occupational Safety and Health Administration (OSHA) regulations in Section 3.3.2 may apply. The NESHAP regulations should be studied in detail for a thorough delineation of these and other requirements.

Employee Exposure OSHA Standard 29 CFR 1910.1001 and 1926.1101

OSHA regulates employee exposure to asbestos. The OSHA asbestos standards for general industry and for construction mandate a permissible exposure limit (PEL) of 0.1 fibers [equal to or longer than five (5) micrometers] per cubic centimeter of air (fibers/cc) determined as an eight (8)-hour, time-weighted average (TWA) and an excursion limit of one (1) fiber/cc as a thirty (30)-minute TWA.

Also, for asbestos removal or renovation involving ACM, the Asbestos Construction Standard (29 CFR 1926.1101) requires that specific procedures be followed, including enclosure of the work area, to control asbestos exposure of building occupants as well as employees involved in abatement or renovation activities. If ACMs are managed in place, the OSHA Asbestos Construction Standard applies to employees who may contact or disturb ACMs during their work shift. Maintenance and custodial workers may be affected.

Local and State Regulations

Regulations pertaining to asbestos in Puerto Rico include the Puerto Rico Environmental Quality Board (PR EQB). Rules and regulations of the PR EQB follow the federal NESHAPS guidelines and are stricter in some cases. Notification to the PR EQB is required when asbestos-containing materials are to be abated, regardless of quantities. A completed “General Permit Application for the Handling Asbestos Containing Materials” must be submitted to the PR EQB in advance of performing asbestos abatement work. If the application is completely filled out and all the required documentation is attached according to the checklist, the application may be authorized and a permit can be issued on the same day. Work may begin immediately after the permit is issued considering that the EPA 10-day notice was previously submitted. Asbestos materials must be abated by PR EQB-licensed abatement personnel utilizing the proper engineering controls prior to the beginning of any future renovation/demolition activities.

VI . LIMITATIONS

The results, findings, and conclusions expressed in the report are based only on the conditions that were noted during the Juy-August, 2016 Nortol’s assessment of Hangar Building #1, located at Muniz Air National Guard Base, Carolina, P.R. Any conditions or materials that could not be visually identified on the surface were not inspected and may differ from those conditions or materials noted. It was not within the scope of the inspection to remove surface materials to investigate portions of the structure or materials that lay beneath the surface. Nortol’s selection of sample locations and frequency of sampling was based on Nortol observations and the assumption that like materials in the same area are homogeneous in content.

If during any future demolition within the subject scope of work, some material or component that was not accessible during the inspection is exposed and it is considered suspected of containing asbestos, it must be characterized prior to handling and disposal.

The report is designed to aid the building owner, architect, construction manager, general contractors, and potential asbestos abatement contractors in locating ACMs. Under no circumstances is the report to be utilized as a bidding document or as a project specification document, given that abatement bidders are responsible for visiting the project.

Attachment 1 Facility (Site Location) Map

Source: Google earth

HANGAR BUILDING #1

Muniz Air National Guard Base

Carolina, P.R.

Site location

Attachment 2

Representative Pictures

Pictures - Page 1 of 6

Hangar Bldg. #1 PR Air National Guard - Carolina PR 2016

Pictures - A Vinyl Floor Tiles – 1st and 2nd floor – localized

POSITIVE to asbestos

Pictures - Page 2 of 6

Pictures - B Thermal System Insulation – water pipes visible over ceiling in 1st floor

POSITIVE to asbestos

Pictures - Page 3 of 6

Pictures - C Corrugated panels (enclosed behind Plycem or metals panels)

2nd floor level Assumed POSITIVE to asbestos

Pictures - Page 4 of 6

Pictures - D Roofing materials – Top of 1st floor

NEGATIVE to asbestos (note: current damages is the actual condition)

Pictures - Page 5 of 6

Pictures - E A/C ducts – observed on 1st and 2nd floor

Non suspect to asbestos containing materials

Pictures - Page 6 of 6

Picture - F Ceiling tiles – 1st and 2nd floor

Non suspect to asbestos containing materials

Attachment 3

Asbestos Location Diagrams (not to scale)

Muniz Air National Guard Base

Carolina, P.R.

First floor

Asbestos Containing Materials Aproximated location

SNAPSHOT FROM MAP

PROVIDED BY CLIENT

Vinyl floor tiles (about 1,400 sq. ft.)

Thermal system insulation from domestic water piping (about 1,200 sq. ft. )

Carolina, P.R.

Second floor

Asbestos Containing Materials Aproximated location

SNAPSHOT FROM MAP

PROVIDED BY CLIENT

Vinyl floor tiles (about 5,650 sq. ft.)

Asbestos corrugated panels assumed within (enclosed) other walls

Attachment 4

Laboratory Bulk Samples Analysis Report

August 9, 2016

Nortol Environmental & Occupational Safety, Inc.

PO Box 366457 San Juan, PR 00936-6457

CLIENT PROJECT: Hangar 1 Prang; San Juan, PR

CEI LAB CODE: A16-7180

Dear Customer:

Enclosed are asbestos analysis results for PLM Bulk samples received at our laboratory on August 8, 2016. The samples were analyzed for asbestos using polarizing light microscopy (PLM) per the EPA 600 Method.

Sample results containing >1% asbestos are considered asbestos-containing materials (ACMs) per EPA regulatory requirements. The detection limit for the EPA 600 Method is <1% asbestos by weight as determined by visual estimation.

Thank you for your business and we look forward to continuing good relations. If you have any questions, please feel free to call our office at 919-481-1413.

730 SE Maynard Road • Cary, NC 27511 • 919.481.1413

Tianbao Bai, Ph.D., CIH Laboratory Director

Kind Regards, Asbestos Report Summary By: POLARIZING LIGHT MICROSCOPY

PROJECT: Hangar 1 Prang; San Juan, PR CEI LAB CODE: A16-7180

Client ID Lab ID Color Sample Description

ASBESTOS

%Layer

METHOD: EPA 600 / R93 / 116 and EPA 600 / M4-82 / 020

A2207538 Gray,Yellow Seal Membrane None DetectedHANG01-01

Layer 1 A2207539A Yellow Mastic None DetectedHANG01-02

Layer 2 A2207539A Green Vinyl Floor Tile Chrysotile 10% A2207539B Black Mastic None Detected

A2207540A White Vinyl Floor Tile None DetectedHANG01-03

A2207540B Black,Yellow Mastic None Detected

A2207541A White Vinyl Floor Tile None DetectedHANG01-04

A2207541B Black,Yellow Mastic None Detected

A2207542A Tan,Gray Vinyl Floor Tile None DetectedHANG01-05

A2207542B Black,Yellow Mastic Chrysotile 5% Layer 1 A2207543A Yellow Mastic None DetectedHANG01-06

Layer 2 A2207543A Red Vinyl Floor Tile Chrysotile 10% A2207543B Black Mastic None Detected

A2207544A Blue Vinyl Floor Tile None DetectedHANG01-07A

A2207544B Black Mastic None Detected

A2207545A Tan Vinyl Floor Tile ChrysotileHANG01-07B 2% A2207545B Black Mastic None Detected

Layer 1 A2207546A Yellow Mastic None DetectedHANG01-08

Layer 2 A2207546A Tan Vinyl Floor Tile Chrysotile 2% A2207546B Black Mastic Chrysotile 10% A2207547A Green Vinyl Floor Tile ChrysotileHANG01-09 10% A2207547B Black Mastic None Detected

Layer 1 A2207548A Gray Vinyl Floor Tile None DetectedHANG01-10

Layer 2 A2207548A Black Mastic On Side Of Tile Chrysotile 2% A2207548B Yellow Mastic None Detected

Layer 1 A2207549A Yellow Mastic None DetectedHANG01-11

Layer 2 A2207549A Tan Vinyl Floor Tile Chrysotile 5% A2207549B Black Mastic Chrysotile 5% A2207550A Tan Vinyl Floor Tile ChrysotileHANG01-12 5% A2207550B Black Mastic None Detected

A2207550C Green Vinyl Floor Tile Chrysotile 10%

PROJECT: Hangar 1 Prang; San Juan, PR CEI LAB CODE: A16-7180

Client ID Lab ID Color Sample Description

ASBESTOS

%Layer

METHOD: EPA 600 / R93 / 116 and EPA 600 / M4-82 / 020

A2207551A Tan Vinyl Floor Tile None DetectedHANG01-13

A2207551B Yellow Mastic None Detected

Layer 1 A2207552A Brown Mastic None DetectedHANG01-14

Layer 2 A2207552A Tan Vinyl Floor Tile None Detected

A2207552B Tan Mastic None Detected

A2207552C Green Vinyl Floor Tile Chrysotile 10% A2207553A Tan Vinyl Floor Tile None DetectedHANG01-15

A2207553B Tan Mastic None Detected

A2207553C Green Vinyl Floor Tile Chrysotile 10% A2207553D Black Mastic None Detected

A2207554A White Vinyl Floor Tile None DetectedHANG01-16

A2207554B Yellow Mastic None Detected

A2207555A Blue Vinyl Floor Tile None DetectedHANG01-17

A2207555B Tan Mastic None Detected

A2207556A Tan Vinyl Floor Tile None DetectedHANG01-18

A2207556B Yellow Mastic None Detected

A2207557A Blue Vinyl Floor Tile None DetectedHANG01-19

A2207557B Yellow Mastic None Detected

A2207558A White Vinyl Floor Tile None DetectedHANG01-20

A2207558B Yellow Mastic None Detected

A2207559A White Vinyl Floor Tile None DetectedHANG01-21

A2207559B Yellow Mastic None Detected

A2207560 White,Tan Pipe Thermal Insulation ChrysotileHANG01-22 20% A2207561 White,Tan Pipe Thermal Insulation ChrysotileHANG01-23 20% A2207562A Tan Vinyl Floor Tile None DetectedHANG01-24

A2207562B Yellow Mastic None Detected

A2207563A Tan Vinyl Floor Tile None DetectedHANG01-25

A2207563B Yellow Mastic None Detected

A2207564A Tan Vinyl Floor Tile None DetectedHANG01-26

A2207564B Black Mastic None Detected

A2207564C Tan Vinyl Floor Tile Chrysotile 10%

PROJECT: Hangar 1 Prang; San Juan, PR CEI LAB CODE: A16-7180

Client ID Lab ID Color Sample Description

ASBESTOS

%Layer

METHOD: EPA 600 / R93 / 116 and EPA 600 / M4-82 / 020

A2207565A Tan Vinyl Floor Tile None DetectedHANG01-27

A2207565B Black Mastic None Detected

A2207565C Tan Vinyl Floor Tile Chrysotile 10% A2207565D Black Mastic None Detected

ASBESTOS BULK ANALYSIS

CEI Lab Code: A16-7180 Date Received: 08-08-16 Date Analyzed: 08-09-16 Date Reported: 08-09-16

Client ID Lab ID

Lab Attributes

Lab Description

ASBESTOS

ASBESTOS BULK PLM, EPA 600 METHOD

NON-ASBESTOS COMPONENTS

Non-Fibrous

Client: Nortol Environmental & Occupational Safety, Inc.

PO Box 366457 San Juan, PR 00936-6457

Project: Hangar 1 Prang; San Juan, PR

Fibrous

Gray,Yellow Seal MembraneHANG01-01

A2207538 Heterogeneous

Non-fibrous Bound

90% 10%

Foam Paint

None Detected

Yellow

HANG01-02

A2207539A

2%Heterogeneous

Fibrous Bound

98%Synthetic Fiber Mastic None Detected Layer 1

Mastic

Green Vinyl Floor Tile

A2207539A Heterogeneous

Fibrous Bound

60% 30%

Vinyl Calc Carb

10% ChrysotileLayer 2

Black MasticA2207539B 2%Heterogeneous

Fibrous Bound

98%Cellulose Tar None Detected

White Vinyl Floor TileHANG01-03

A2207540A 2%Heterogeneous

Fibrous Bound

60% 30% 8%

Cellulose Vinyl Calc Carb Binder

None Detected

Black,Yellow MasticA2207540B 2%Heterogeneous

Fibrous Bound

40% 40% 18%

Cellulose Tar Mastic Binder

None Detected

White Vinyl Floor TileHANG01-04

A2207541A 2%Heterogeneous

Fibrous Bound

60% 30% 8%

Cellulose Vinyl Calc Carb Binder

None Detected

CEI Lab Code: A16-7180 Date Received: 08-08-16 Date Analyzed: 08-09-16 Date Reported: 08-09-16

Client ID Lab ID

Lab Attributes

Lab Description

ASBESTOS

ASBESTOS BULK PLM, EPA 600 METHOD

NON-ASBESTOS COMPONENTS

Non-Fibrous

Client: Nortol Environmental & Occupational Safety, Inc.

PO Box 366457 San Juan, PR 00936-6457

Project: Hangar 1 Prang; San Juan, PR

Fibrous

Black,Yellow MasticA2207541B 2%Heterogeneous

Fibrous Bound

40% 40% 18%

Cellulose Tar Mastic Binder

None Detected

Tan,Gray Vinyl Floor TileHANG01-05

A2207542A 2%Heterogeneous

Fibrous Bound

60% 30% 8%

Cellulose Vinyl Calc Carb Binder

None Detected

Black,Yellow MasticA2207542B Heterogeneous

Fibrous Bound

40% 40% 15%

Tar Mastic Binder

5% Chrysotile

Yellow

HANG01-06

A2207543A

2%Heterogeneous

Fibrous Bound

98%Cellulose Mastic None Detected Layer 1

Mastic

Red Vinyl Floor Tile

A2207543A Heterogeneous

Fibrous Bound

60% 30%

Vinyl Calc Carb

10% ChrysotileLayer 2

Black MasticA2207543B 2%Heterogeneous

Fibrous Bound

98%Cellulose Tar None Detected

Blue Vinyl Floor TileHANG01-07A

A2207544A 2%Heterogeneous

Fibrous Bound

60% 30% 8%

Cellulose Vinyl Calc Carb Binder

CEI Lab Code: A16-7180 Date Received: 08-08-16 Date Analyzed: 08-09-16 Date Reported: 08-09-16

Client ID Lab ID

Lab Attributes

Lab Description

ASBESTOS

ASBESTOS BULK PLM, EPA 600 METHOD

NON-ASBESTOS COMPONENTS

Non-Fibrous

Client: Nortol Environmental & Occupational Safety, Inc.

PO Box 366457 San Juan, PR 00936-6457

Project: Hangar 1 Prang; San Juan, PR

Fibrous

Black MasticA2207544B 2%Heterogeneous

Fibrous Bound

98%Cellulose Tar None Detected

Tan Vinyl Floor TileHANG01-07B

A2207545A Heterogeneous

Fibrous Bound

60% 30% 8%

Vinyl Calc Carb Binder

2% Chrysotile

Black MasticA2207545B 2%Heterogeneous

Fibrous Bound

98%Cellulose Tar None Detected

Yellow

HANG01-08

A2207546A

2%Heterogeneous

Fibrous Bound

98%Cellulose Mastic None Detected Layer 1

Mastic

Tan Vinyl Floor Tile

A2207546A Heterogeneous

Fibrous Bound

60% 30% 8%

Vinyl Calc Carb Binder

2% ChrysotileLayer 2

Black MasticA2207546B Heterogeneous

Fibrous Bound

90% Tar 10% Chrysotile

Green Vinyl Floor TileHANG01-09

A2207547A Heterogeneous

Fibrous Bound

60% 30%

Vinyl Calc Carb

10% Chrysotile

CEI Lab Code: A16-7180 Date Received: 08-08-16 Date Analyzed: 08-09-16 Date Reported: 08-09-16

Client ID Lab ID

Lab Attributes

Lab Description

ASBESTOS

ASBESTOS BULK PLM, EPA 600 METHOD

NON-ASBESTOS COMPONENTS

Non-Fibrous

Client: Nortol Environmental & Occupational Safety, Inc.

PO Box 366457 San Juan, PR 00936-6457

Project: Hangar 1 Prang; San Juan, PR

Fibrous

Black MasticA2207547B 2%Heterogeneous

Fibrous Bound

98%Cellulose Tar None Detected

Gray

HANG01-10

A2207548A

2%Heterogeneous

Fibrous Bound

60% 30% 8%

Cellulose Vinyl Calc Carb Binder

None Detected Layer 1

Vinyl Floor Tile

Black Mastic On Side Of Tile

A2207548A 3%Heterogeneous

Fibrous Bound

95%Cellulose Tar 2% ChrysotileLayer 2

Yellow MasticA2207548B 2%Heterogeneous

Fibrous Bound

98%Cellulose Mastic None Detected

Yellow

HANG01-11

A2207549A

2%Heterogeneous

Fibrous Bound

98%Cellulose Mastic None Detected Layer 1

Mastic

Tan Vinyl Floor Tile

A2207549A Heterogeneous

Fibrous Bound

60% 30% 5%

Vinyl Calc Carb Binder

5% ChrysotileLayer 2

Black MasticA2207549B Heterogeneous

Fibrous Bound

95% Tar 5% Chrysotile

CEI Lab Code: A16-7180 Date Received: 08-08-16 Date Analyzed: 08-09-16 Date Reported: 08-09-16

Client ID Lab ID

Lab Attributes

Lab Description

ASBESTOS

ASBESTOS BULK PLM, EPA 600 METHOD

NON-ASBESTOS COMPONENTS

Non-Fibrous

Client: Nortol Environmental & Occupational Safety, Inc.

PO Box 366457 San Juan, PR 00936-6457

Project: Hangar 1 Prang; San Juan, PR

Fibrous

Tan Vinyl Floor TileHANG01-12

A2207550A Heterogeneous

Fibrous Bound

60% 30% 5%

Vinyl Calc Carb Binder

5% Chrysotile

Black MasticA2207550B 2%Heterogeneous

Fibrous Bound

98%Cellulose Tar None Detected

Green Vinyl Floor TileA2207550C Heterogeneous

Fibrous Bound

60% 30%

Vinyl Calc Carb

10% Chrysotile

Tan Vinyl Floor TileHANG01-13

A2207551A 2%Heterogeneous

Fibrous Bound

60% 30% 8%

Cellulose Vinyl Calc Carb Binder

None Detected

Yellow MasticA2207551B 2%Heterogeneous

Fibrous Bound

98%Cellulose Mastic None Detected

Brown

HANG01-14

A2207552A

2%Heterogeneous

Fibrous Bound

98%Cellulose Mastic None Detected Layer 1

Mastic

Tan Vinyl Floor Tile

A2207552A 2%Heterogeneous

Fibrous Bound

60% 30% 8%

Cellulose Vinyl Calc Carb Binder

None DetectedLayer 2

CEI Lab Code: A16-7180 Date Received: 08-08-16 Date Analyzed: 08-09-16 Date Reported: 08-09-16

Client ID Lab ID

Lab Attributes

Lab Description

ASBESTOS

ASBESTOS BULK PLM, EPA 600 METHOD

NON-ASBESTOS COMPONENTS

Non-Fibrous

Client: Nortol Environmental & Occupational Safety, Inc.

PO Box 366457 San Juan, PR 00936-6457

Project: Hangar 1 Prang; San Juan, PR

Fibrous

Tan MasticA2207552B 2%Heterogeneous

Fibrous Bound

98%Cellulose Mastic None Detected

Green Vinyl Floor TileA2207552C Heterogeneous

Fibrous Bound

60% 30%

Vinyl Calc Carb

10% Chrysotile

Tan Vinyl Floor TileHANG01-15

A2207553A 2%Heterogeneous

Fibrous Bound

60% 30% 8%

Cellulose Vinyl Calc Carb Binder

None Detected

Tan MasticA2207553B 2%Heterogeneous

Fibrous Bound

98%Cellulose Mastic None Detected

Green Vinyl Floor TileA2207553C Heterogeneous

Fibrous Bound

60% 30%

Vinyl Calc Carb

10% Chrysotile

Black MasticA2207553D 2%Heterogeneous

Fibrous Bound

98%Cellulose Tar None Detected

White Vinyl Floor TileHANG01-16

A2207554A 2%Heterogeneous

Fibrous Bound

60% 30% 8%

Cellulose Vinyl Calc Carb Binder

CEI Lab Code: A16-7180 Date Received: 08-08-16 Date Analyzed: 08-09-16 Date Reported: 08-09-16

Client ID Lab ID

Lab Attributes

Lab Description

ASBESTOS

ASBESTOS BULK PLM, EPA 600 METHOD

NON-ASBESTOS COMPONENTS

Non-Fibrous

Client: Nortol Environmental & Occupational Safety, Inc.

PO Box 366457 San Juan, PR 00936-6457

Project: Hangar 1 Prang; San Juan, PR

Fibrous

Yellow MasticA2207554B 2%Heterogeneous

Fibrous Bound

98%Cellulose Mastic None Detected

Blue Vinyl Floor TileHANG01-17

A2207555A 2%Heterogeneous

Fibrous Bound

60% 30% 8%

Cellulose Vinyl Calc Carb Binder

None Detected

Tan MasticA2207555B Heterogeneous

Non-fibrous Bound

100% Binder None Detected

Tan Vinyl Floor TileHANG01-18

A2207556A 2%Heterogeneous

Fibrous Bound

60% 30% 8%

Cellulose Vinyl Calc Carb Binder

None Detected

Yellow MasticA2207556B 2%Heterogeneous

Fibrous Bound

98%Cellulose Mastic None Detected

Blue Vinyl Floor TileHANG01-19

A2207557A 2%Heterogeneous

Fibrous Bound

60% 30% 8%

Cellulose Vinyl Calc Carb Binder

None Detected

Yellow MasticA2207557B 2%Heterogeneous

Fibrous Bound

98%Cellulose Mastic None Detected

CEI Lab Code: A16-7180 Date Received: 08-08-16 Date Analyzed: 08-09-16 Date Reported: 08-09-16

Client ID Lab ID

Lab Attributes

Lab Description

ASBESTOS

ASBESTOS BULK PLM, EPA 600 METHOD

NON-ASBESTOS COMPONENTS

Non-Fibrous

Client: Nortol Environmental & Occupational Safety, Inc.

PO Box 366457 San Juan, PR 00936-6457

Project: Hangar 1 Prang; San Juan, PR

Fibrous

White Vinyl Floor TileHANG01-20

A2207558A 2%Heterogeneous

Fibrous Bound

60% 30% 8%

Cellulose Vinyl Calc Carb Binder

None Detected

Yellow MasticA2207558B 2%Heterogeneous

Fibrous Bound

98%Cellulose Mastic None Detected

White Vinyl Floor TileHANG01-21

A2207559A 2%Heterogeneous

Fibrous Bound

60% 30% 8%

Cellulose Vinyl Calc Carb Binder

None Detected

Yellow MasticA2207559B 2%Heterogeneous

Fibrous Bound

98%Cellulose Mastic None Detected

White,Tan Pipe Thermal InsulationHANG01-22

A2207560 50%Heterogeneous

Fibrous Loose

30%Cellulose Binder 20% Chrysotile

White,Tan Pipe Thermal InsulationHANG01-23

A2207561 50%Heterogeneous

Fibrous Loose

30%Cellulose Binder 20% Chrysotile

Tan Vinyl Floor TileHANG01-24

A2207562A 2%Heterogeneous

Fibrous Bound

60% 30% 8%

Cellulose Vinyl Calc Carb Binder

CEI Lab Code: A16-7180 Date Received: 08-08-16 Date Analyzed: 08-09-16 Date Reported: 08-09-16

Client ID Lab ID

Lab Attributes

Lab Description

ASBESTOS

ASBESTOS BULK PLM, EPA 600 METHOD

NON-ASBESTOS COMPONENTS

Non-Fibrous

Client: Nortol Environmental & Occupational Safety, Inc.

PO Box 366457 San Juan, PR 00936-6457

Project: Hangar 1 Prang; San Juan, PR

Fibrous

Yellow MasticA2207562B 2%Heterogeneous

Fibrous Bound

98%Cellulose Mastic None Detected

Tan Vinyl Floor TileHANG01-25

A2207563A 2%Heterogeneous

Fibrous Bound

60% 30% 8%

Cellulose Vinyl Calc Carb Binder

None Detected

Yellow MasticA2207563B 2%Heterogeneous

Fibrous Bound

98%Cellulose Mastic None Detected

Tan Vinyl Floor TileHANG01-26

A2207564A 2%Heterogeneous

Fibrous Bound

60% 30% 8%

Cellulose Vinyl Calc Carb Binder

None Detected

Black MasticA2207564B 2%Heterogeneous

Fibrous Bound

98%Cellulose Tar None Detected

Tan Vinyl Floor TileA2207564C Heterogeneous

Fibrous Bound

60% 30%

Vinyl Calc Carb

10% Chrysotile

Tan Vinyl Floor TileHANG01-27

A2207565A 2%Heterogeneous

Fibrous Bound

60% 30% 8%

Cellulose Vinyl Calc Carb Binder

CEI Lab Code: A16-7180 Date Received: 08-08-16 Date Analyzed: 08-09-16 Date Reported: 08-09-16

Client ID Lab ID

Lab Attributes

Lab Description

ASBESTOS

ASBESTOS BULK PLM, EPA 600 METHOD

NON-ASBESTOS COMPONENTS

Non-Fibrous

Client: Nortol Environmental & Occupational Safety, Inc.

PO Box 366457 San Juan, PR 00936-6457

Project: Hangar 1 Prang; San Juan, PR

Fibrous

Black MasticA2207565B 2%Heterogeneous

Fibrous Bound

98%Cellulose Tar None Detected

Tan Vinyl Floor TileA2207565C Heterogeneous

Fibrous Bound

60% 30%

Vinyl Calc Carb

10% Chrysotile

Black MasticA2207565D 2%Heterogeneous

Fibrous Bound

98%Cellulose Tar None Detected

LEGEND: Non-Anth = Non-Asbestiform Anthophyllite Non-Trem = Non-Asbestiform Tremolite Calc Carb = Calcium Carbonate

METHOD: EPA 600 / R93 / 116 and EPA 600 / M4-82 / 020

LIMIT OF DETECTION: <1% by visual estimation

REGULATORY LIMIT: >1% by weight

Due to the limitations of the EPA 600 method, nonfriable organically bound materials (NOBs) such as vinyl floor tiles can be difficult to analyze via polarized light microscopy (PLM). EPA recommends that all NOBs analyzed by PLM, and found not to contain asbestos, be further analyzed by Transmission Electron Microscopy (TEM). Please note that PLM analysis of dust and soil samples for asbestos is not covered under NVLAP accreditation.

This report relates only to the samples tested or analyzed and may not be reproduced, except in full, without written approval by CEI Labs, Inc. CEI Labs makes no warranty representation regarding the accuracy of client submitted information in preparing and presenting analytical results. Interpretation of the analytical results is the sole responsibility of the client. This report may not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. Government.

ANALYST: APPROVED BY:

Tianbao Bai, Ph.D., CIH Laboratory Director

Sarah Talley

Attachment 5 Inspectors and Laboratory Accreditations

Asbestos Inspector –PREQB

PR Environmental Quality Board Asbestos Inspector Accreditation

Lead Based Paint Inspection Report

For

HANGAR BUILDING #1

Muniz Air National Guard Base, Carolina, P.R.

Prepared for: _____________________

Client Name: _____________________

Survey Dates: July 27, August 2nd and August 5, 2016

Inspectors: ______________________ __________________________ Juan Enrique Santiago Norma I. Torres

LBP PREQB I.D. # 1288-0715-LI-001 LBP PREQB I.D. # 3222-1115-LI-003

NORTOL’S PREQB Lead Firm #: 6556-0216-LF-001 NORTOL’S USEPA Lead Firm #: NAF-F121771-1 XRF-direct reading Instrument: Heuritas Pb200i Alpha (serial # 1142)

LEAD BASED PAINT INSPECTION – HANGAR BUILDING #1, MUNIZ ANG, CAROLINA, PR - AUGUST 2016

Table of Contents

Section Page

Executive Summary 3

Introduction 4

Summary of Positive LBP Findings 5

Survey Protocol 5

Regulatory Review 6

Survey Procedures 8

Lead Based Paint Findings 9

Conclusion and Limitations 11

Attachments

Reference Photos

Reference Diagram

LBP Survey Data – XRF Readings

Inspector(s) and Company LBP Accreditations

XRF Instrument Information

Executive Summary

A Lead-based Paint (LBP) survey was conducted at the Hangar Building #1, located at Muniz Air National Guard Base, Carolina, P.R. The field work was done between July and August, 2016 by accredited personnel from Nortol Environmental and Occupational Safety, Inc. as subcontractors to Jacobs as project managers.

The main purpose of the study was to determine which components from the subject property have been painted with LBP. A portable X-Ray Fluorescent (XRF) direct reading analyzer was the method used to determine lead concentrations. Over five hundred components were tested using the XRF instrument.

Obtained readings show that paints from some steel or metal fixtures (i.e. structural columns and beams, utility panel covers, rolling door’s frames and safety bollards) are considered Lead-Based Painted. The established threshold for the classification of painted components as lead bearing per the PR Environmental Quality Board (EQB) and the Housing and Urban Development guideline is 1.0 mg/cm².

I. INTRODUCTION

Lead-based Paint means paint or other surface coatings that contain lead equal to or greater than 1.0 mg/cm² or 0.5 percent by weight. Surface coatings include paint, shellac, varnish, or any other coating, including wallpaper which covers painted surfaces. Lead was used as a pigment and drying agent in "alkyd" oil based paint.

"Latex" water based paints generally have not contained lead. Before the 1970s Lead- Based Paint was commonly used in buildings and residences. In 1978, the U.S.

Consumer Product Safety Commission lowered the legal maximum lead content in most types of paint to 0.06% or 600 parts per million (a trace amount).

People and the environment can have very high lead exposure from removing paint from surfaces previously coated with lead paint, such as in building repair, renovation, and demolition. Federal and local regulatory agencies require compliance with some procedures to minimize lead dust emissions during these activities.

The PR Air National Guard propose improvements of the Hangar Building #1, located at Muniz Air National Guard Base, Carolina, P.R. To achieve current regulatory requirements, the actual Hangar facilities were inspected for the presence of LBP. This two-story concrete/steel structure was built during the decade of 1950 as a main hangar. The area consists of about 64,116 square meters including an airplane repair/maintenance space, shops, offices, and bathrooms. At the time of this study, the subject project was occupied in normal operations.

The scope of work conducted under contract with the Client included the following tasks within the referenced buildings/areas:

1. Achieve inventory of painted surfaces.

2. Select areas to be tested.

3. Perform XRF testing.

4. Review and evaluate the data.

5. Report findings

II. SUMMARY OF POSITIVE LBP FINDINGS

The following paints of the project were found to be above the established threshold for the classification of painted components as lead bearing per the current regulatory guideline of 1.0 mg/cm². See Attachment 1 for representative pictures showing LBP positive components, Attachment 2 for corresponding diagram, and Attachment 3 for

XRF readings data. Section VI includes additional information.

- Structural steel columns and beams: all building frame

- Metal frames from Rolling doors to the west: 3 units

- Metal covers from the utility panels: about 10 units (electrical, phones, etc.)

- Traffic yellow metal bollards at exteriors: 7 units

III. SURVEY PROTOCOL

The survey was conducted following the PR Environmental Quality Board recommended HUD Guidelines for the Evaluation and Control of Lead-Based Paint

Hazards in Housing (1997 Revision, Chapter 7). The technique used for the analysis of the painted components was the XRF instrument.

Portable XRF instruments expose a component to X-ray or gamma radiation, which causes lead to emit X rays with a characteristic frequency or energy. The intensity of this radiation is measured by the instrument. The instrument was set at Standard Paint

Mode to display the value (reading) and showing reading “Positive” or “Negative” with a 95% confident. Results were compared to a reference standard limit of 1.0 mg/cm².

IV. REGULATORY REVIEW

Overexposure to lead is found in construction industry when improper procedures are implemented. It is also a major potential public health risk. Lead poisoning is the leading environmentally induced illness in children. At greatest risk are children under the age of six because they are undergoing rapid neurological and physical development. In general population, lead may be present at hazardous concentrations in food, water, and air. Sources include Lead-Based Paint, urban soil and dust, and drinking water.

Lead is commonly added to industrial paints because of its characteristic to resist corrosion. Industries with particularly high potential exposures include: construction work involving welding, cutting, brazing, blasting, etc., on lead paint surfaces; most smelter operations either as a trace contaminant or as a major product; secondary lead smelters where lead is recovered from batteries; radiator repair shops; and firing ranges. Oral ingestion may represent a major route of exposure in contaminated workplaces. Once in the blood, lead is distributed primarily among three routes - blood, soft tissue (kidney, bone marrow, liver, and brain) and mineralizing tissue (bones and teeth).

Hazard of lead in paint has been defined by the Department of Housing and Urban

Development as 1.0 mg/cm² as measured by an XRF instrument, or Atomic Absorption

Spectroscopy (AAS); or 0.5% by weight (or 5,000 ppm) as measured by AAS, or

Inductive Coupled Plasma (ICP). The same level was adopted by EPA regulations published in 1992, under Title X.

Although Occupational Safety and Health Administration (OSHA) regulations for occupational lead exposure have been in effect since 1971 for the construction and general industries, the agency recognized the need to provide better protection and revised the regulations for general industry in 1978. The 1978 lead standard, however, excluded the construction industry from coverage because of insufficient information regarding lead use in construction.

In 1990, the National Institute for Occupational Safety and Health (NIOSH) set a national goal to eliminate worker exposures resulting in blood lead concentrations greater than 25 micrograms per deciliter (25 µg/dl) of whole blood. Consequently, OSHA began developing a proposal for a comprehensive standard regulating occupational exposure to lead in construction. In October 1992, the Congress passed

Section 1031 of Title X of the Housing and Community Development Act of 1992 (P.

L. 102-550) requiring OSHA to issue an interim final lead standard for the construction industry, effective until OSHA issues a final standard. The interim final rule, published on May 4, 1993, amends the OSHA standards for occupational health and environmental controls in Subpart D of Title 29 Code of Federal Regulations (CFR)

1926 by adding a new section 1926.62, containing employee protection requirements for construction workers exposed to lead.

On July 1998 , the Environmental Quality Board regulations regarding to Lead Based

Paint was created to issue permits, accredit institutions and certify persons involved in

Lead Based Paint activities in Puerto Rico.

The following regulations are related with lead exposure:

• OSHA STANDARD 29 CFR 1926.62 LEAD IN CONSTRUCTION

o Protect workers exposed to lead at work sites o Implement protective measures for certain tasks until exposure assessment completed, i.e. welding, demolition, paint removal o Training for workers exposed to lead at or above the action level of

30ug/m3 (<30ug/m3 Hazard Communication Std.)

o Medical Surveillance Program

• EPA 40CFR PARTS 141 & 142 LEAD IN DRINKING WATER

o To minimize drinking water as a source of lead contributing to the total body burden

• EPA 40CFR PARTS 745 LEAD BASED PAINT HAZARDS

o Standards for Lead-Based Paint hazards applying to target housing and child-occupied facilities

• OSHA STANDARD 40 CFR Part 261 o Requirements to help determine and classify waste material for proper disposal

• RESIDENTIAL LEAD BASED PAINT REDUCTION ACT, SECTION 1017,

"TITLE X" LEAD IN PAINT

o Provide lead safe environment for children o Guidelines for working with LBP in federally supported housing o Evaluate and control lead hazards in soil, dust and water o Disclosure of LBP in privately owned dwellings upon sale or rental

• PR ENVIRONMENTAL QUALITY BOARD

o License qualified personnel, companies, training schools and lead abatement projects

V. SURVEY PROCEDURE

A typical Lead-based Paint Inspection involves the following tasks:

1. The inspector enters the area to be inspected, identifies the room equivalents and compare with the available drawing of the area.

2. The inspector then identifies each testing combination in the area. A testing combination is defined as a unique combination of room equivalent, building component type, and substrate. The color and location of the testing combination is also noted. For location reference, the letters A, B, C, and D were used in the inspection. The letters refer to:

A ⇒ Main entrance side (to east) B ⇒ Right side orientation C ⇒ Rear side orientation D ⇒ Left side orientation

3. Using the XRF device, the inspector collects readings from testing combinations in each room equivalent.

4. When testing combinations are verified, the inspector then continues the inspection with the remaining room equivalents.

5. The inspection is finished when accessible testing combinations in the area have been tested.

The concentration of lead in the reading will depend not only upon the concentration of the lead in the original lead containing paint, but also anything else bound to that layer of paint. It must also be kept in mind that painted surfaces are not homogeneous.

The relative thickness of each layer of paint can vary. This variation could be from the initial paint application; from wear of the painted surfaces; or from the peeling of surfaces.

VI. LEAD-BASED PAINT FINDINGS

Some components such as structural columns/beams, rolling door’s frames, utility panel covers and some bollards (with traffic yellow) are POSITIVE to Lead Based

Paint. It is important to establish that not all traffic yellow present in the site is positive to lead. These findings may be likely as a result of the early traffic yellow paint used in some of the areas.

See the Attachment section for diagram, photos and XRF lectures report. Table 1.0 describes areas that were found with LBP as per applicable regulation definitions.

L E

A D

B A

S E

D P

A

IN

T

IN

S P

E C

T

IO

N

– H

A N

G A

R B

U

IL

D

IN

G

, M

U N

IZ

A

N G

, C A

R O

L

IN

A , P

R

- A

U G

U S

T

Table 1.0 Hangar Building #1 Muniz Air National Guard Base, Carolina, P.R.

Lead Based Paint Survey Area (See diagram and photos) Component Estimated amount

Interior 1st and 2nd floor Beige/white structural steel columns and beams All building

Interior west side Brown metal rolling door’s frames 3 units approx. 90 sq. ft.

Interior (1st floor mostly to north and south)

Red/orange metal covers (cases) at electrical, telephone, etc. panels at walls about 10 units approx. 40 sq.ft.

Exterior north and west sides Yellow metal bollards (safety)

7 units approx. 30 sq. ft

Other tested components at the building and supporting areas are NEGATIVE to Lead Based Paint. See Attachment 3 for the XRF readings information.

VII. CONCLUSION AND LIMITATIONS

The following options are promulgate by the PR-Environmental Quality Board (EQB) and/or the US Environmental Protection Agency (EPA):

- A Lead-Based Paint mitigation project shall be conducted prior to any demolition when lead is present in components to be impacted. The LBP abatement project shall be in accordance with PR Environmental Quality

Board applicable regulations. Whenever practicable, abatement shall be achieved through the methods of paint removal or component replacement. Abatement is considered complete when clearance is achieved in accordance with PR EQB criteria. This requirement is particularly applicable to concrete components.

- Finally, Section 1018 of the Residential Lead-Based Paint Hazard

Reduction Act of 1992, also known as Title X, directed HUD and EPA to require the disclosure of known information on lead-based paint and lead-based paint hazards before the sale or lease of most housing built before 1978. Although, this law is not applicable to other public building, commercial and industrial facilities, the PRANG management must be aware that parties contracting for Phase I environmental assessments may want to know about remains excluded from the scope of ASTM

1527, including lead-based paint, and other issues. Persons contemplating the purchase of a facility may consider whether non-scope issues may be present at the property and add investigation of such issues to the scope of the environmental professional's services.

The results, findings, and conclusions expressed in this report are based only on conditions that were noted during the Nortol’s assessment of building and supporting areas located at Hangar Building #1 Muniz Air National Guard Base, Carolina, P.R. on

July-August, 2016. Any conditions or materials that could not be visually identified on the surface were not inspected and may differ from those conditions or materials noted.

It was not within the scope of the inspection to remove surface materials to investigate portions of the structure or materials that lay beneath the surface. Nortol’s selection of sample locations and frequency of sampling was based on Nortol observations and the assumption that like components in the same area are homogeneous in paint content.

The report is designed to aid the building owner, architect, construction manager, general contractors, and potential lead abatement contractors in locating lead. Under no circumstances is the report to be utilized as a solely bidding document or as a project specification document, given that abatement bidders are responsible for visiting the project to…