Attachment K - HAZMAT Report.pdf

FY23 Army Family Housing Project P-91332

Final Design Development Hazardous Material and Environmental Survey Report

FAMILY HOUSING NEW CONSTRUCTION

VILLAGGIO PHASE 4

VICENZA, ITALY

NAVAL FACILITIES ENGINEERING COMMAND

ATLANTIC DIVISION

Contract # N62470-20-D-0008 Task Order # N6247021F4002 eProjects Work Order # 1669111 AECOM Project # 60651859

15 December 2022

Quality information Prepared by Checked by Verified by Approved by

Katarzyna Wiatrak Ester Nana Davide Degiorgi Alan Long

Revision History Revision Revision date Details Authorized Name Position

00 25/06/2019 DRAFT

01 02/12/2019 Revision 01 to include results of last surveys

02 08/01/2020 FINAL

03 04/08/2020 FINAL REISSUED

04 04/10/2020 FINAL

implementation of Government’s comments

Prepared for:

NAVFAC ATLANTIC

Prepared by:

AECOM URS Italia S.p.A.

AECOM URS Italia S.p.a.

20143 - 27 Giacomo Watt street Milan Italia

T: +39 02 4225561 aecom.com

© 2020 AECOM URS Italia S.p.a.. All Rights Reserved.

This document has been prepared by AECOM URS Italia S.p.a. (“AECOM”) for sole use of our client (the “Client”) in accordance with generally accepted consultancy principles, the budget for fees and the terms of reference agreed between AECOM and the Client. Any information provided by third parties and referred to herein has not been checked or verified by AECOM, unless otherwise expressly stated in the document. No third party may rely upon this document without the prior and express written agreement of AECOM.

TABLE OF CONTENT

1. Executive summary

2. Introduction

3. Site location

4. Survey methodology

5. Results

6. Conclusions and recommendations Figure 1 – site location Figure 2 – General plan “Villaggio della Pace”, surveyed buildings Figure 3 – Sampling location, Villaggio – hazmat – Building 4 Figure 4 – Sampling location, Villaggio – hazmat – Building 223 Figure 5 – Sampling location, Villaggio – hazmat – Building 234 Figure 6 – Sampling location, Villaggio – hazmat – Building 115 Figure 7 – Sampling location, Villaggio – hazmat – Building 150 Figure 8 – Sampling location, Villaggio – hazmat – Building 1 Figure 9 – Sampling location, Villaggio – hazmat – Building 33 Figure 10 – General location, Caserma Ederle – surveyed building Figure 11 – Sampling location, Caserma Ederle, hazmat – Building 440 Figure 12 – Sampling location, Villaggio – soil Figure 13 – Sampling location, Caserma Ederle – soil Attachment 1 – Hazmat Attachment 1A – Report Attachment 1B – Laboratory analysis Attachment 1C – Hazmat list Attachment 2 – Soil environmental survey Attachment 2A – Caserma Ederle Attachment 2B – Villaggio Housing Attachment 2C – Laboratory analysis Attachment 3 – Laboratory analysis, soil waste Attachment 3A – Caserma Ederle Attachment 3B – Villaggio Housing

LIST OF ACRONYMS

ACM Asbestos Containing Material

ARPAV Agenzia per la Prevenzione e Protezione Ambientale del Veneto

D.Lgs Decreto Legislativo (Legislative Decree)

DPR Decreto del Presidente (Presidential Decree)

DPW Department of Public Works

EWC European Waste Code

Hazmat hazardous material

I-FGS Final Governing Standards for Italy

LBP Lead Based Paint

NAVFAC Naval Facilities Engineering Command

PAH Polycyclic Aromatic Hydrocarbons

PCB Polychlorinated Biphenyl

POC Point of Contact

PPM Parts Per Million

SVF Synthetic Vitreous Fibers

USAG U.S. Army Garrison

USAREUR United States Army Europe

VMC Vicenza Military Community

1. Executive summary AECOM (AECOM) has been commissioned by the NAVFAC ATLANTIC to conduct a hazardous materials and soil environmental survey at construction areas of FY19 Army Family Housing project P-759, located within Caserma Ederle and Villaggio Housing areas installations, USAG Italy Vicenza Military Community (VMC).

Activities were carried out under the contract number N 33191-15-D-0811 and task order N6247018F4086.

Hazardous materials (asbestos, synthetic vitreous fibers, lead, mercury, polychlorinated biphenyl (PCB), etc) site inspections were carried out on 27th of March, 3rd and 11th of April, 2nd and 14th of May and 4th of November 2019 by CSG Palladio S.r.l. At Caserma Ederle the survey was limited to the only building located in the future construction area: building 440. At Villaggio Housing area dwelling units consists of 5 different types of units, each one characterized by same construction features and materials. Survey was conducted on at least one building belonging to the different unit types, which was considered representative of the unit type. Investigation was conducted on the following 7 buildings: 1 (Type A) 4 (Type C), 223 (Type F), 234 (Type E), 150 (Type B) 115 (Type F), 33 (Type D). In addition, samples from the roof tar coverages of the building 32 (Type D) were collected to be tested for asbestos presence. Asbestos was found in the samples collected from the chimneys in the building 4, from the roof tar coverage of the external storage rooms in the building 4, 223, 234,33 and 1. Soil under the basement of buildings, covered by polyethylene foil, may contain asbestos, as indicated by a warning sign. The presence of the lead with the values > 5000 mg/kg in the paint was detected in the pipes of the building 440, in the door of the thermal power room in the building 4 and in the gate at the backyard of the building 223. All the mineral wool insulation found in the buildings is classified as carcinogen 2nd category. It is recommended to pay particular attention during demolition work and to proceed, where necessary, according to the procedures described in

Ministerial Decree 06/09/94, D.Lgs 152/06, D.Lgs 81/2008 and Lombardy Region Decree no. 13541 dated

22/12/2010. Attention should be payed not to mix clean soil with any soil impacted as a result from ACM/LBP abatement, or any unforeseen soil condition of the property.

No evidence of the presence of mercury, PCB and other hazardous materials was observed in Buildings 1, 4, 223, 234, 150, 115, 32, 33 and 440, however no specific investigations have been carried out on thermostats or ballasts inside fluorescent light fixtures to verify the presence of mercury and PCBs. Therefore the presence in the buildings of other hazardous materials not investigated during the surveys summarized in this document is not excluded and the demolitions must be carried out by adopting all the necessary precautions.

Soil environmental investigations were performed by AECOM during the geotechnical investigation phase that occurred between the 7th January 2019 and 20th June 2019. None of the analyzed parameters in the collected soil samples was above the thresholds limits values except for arsenic in the sample collected from the borehole E33 at Caserma Ederle (91 mg/kg).

Regarding soil waste classification, the European Waste Code (EWC) that is associated to Ederle and Villaggio

Housing excavated soil is 17 05 04 – soil and stones other than those mentioned in 17 05 03 (i.e. non-hazardous waste). Prior to off-site disposal the soil shall be characterized, and a leaching test should be performed. There are no exceedances of the limit values established by D.Lgs. 152/06 Annex 5 Part IV Tab 1/B – industrial areas.

According to DPR 120/17 the excavated soil has the potential to be reused on site. Prior to the reuse the Contractor shall follow all the prescriptions dictated by DPR 120/17. However, being an exceedance found for the parameter arsenic at Caserma Ederle, and being reuse not applicable to soil where exceedances of the regulatory limit or natural background values are found, it is recommended to dispose of in authorized landfills the excavated soil deriving from excavation conducted at area nearby building 440, Caserma Ederle.

2. Introduction AECOM was awarded Architecture/Engineering Task Order No. N6247018F4086 under Contract No. N33191-15-

D-0811 to prepare the Design-Bid-Build documents for the new construction of U.S. Army family dwelling units at USAG Vicenza, Italy. The build sites for the new construction were approved by the U.S. Army prior to award of the task order. Housing will be split between two sites: Villaggio Della Pace (Villaggio Housing) and Caserma Carlo

Ederle on the main post. Villaggio Housing is approximately 1.5 km south of the main post.

The task order consists of four separate projects as defined in the Vicenza Military Community (VMC) Army Family

Housing Development Plan. This task order includes master planning for 478 dwelling units in four phases, and architectural and engineering services for the design of 111 dwelling units and supporting infrastructure for Phase 1 only. Master planning and architectural visioning performed during the master planning and Phase 1 will apply to all subsequent phases.

Under this Contract Hazardous material (HAZMAT) and environmental surveys were requested to be performed for all the four phases to verify: i) the presence of hazardous materials such as asbestos, lead, synthetic vitreous fibers, mercury, polychlorinated biphenyl (PCB), etc. ii) the potential presence of contaminated soil and iii) determine the European Waste Catalogue code of excavated soil to be disposed/reused and of fluorescent light tubes contain mercury and of other equipment containing HAZMAT to be disposed of as waste.

Hazardous materials site inspections were carried out on the 27th of March, 3rd and 11th of April, 2nd, 14th of May and 4th of November 2019 by CSG Palladio S.r.l. Soil environmental investigations were performed by AECOM during the geotechnical investigation that occurred between the 7th January 2019 and 20th June 2019.

The results of the surveys are provided in this report, which relates to the current state of the site of investigation only.

2.1 Scope of work

The scope of work involved the following:

Walkthrough inspection of at least one building for each homogeneous type at Villaggio Housing (ref. to chapter 3) and building 440 at Ederle;

Identification of hazardous materials (asbestos, synthetic vitreous fibers, lead, mercury, PCB, etc.) in correspondence of the surveyed buildings, samples’ collection and laboratory analysis;

Collection and laboratory analysis of soil samples taken at different depths to evaluate potential soil contamination;

Identification of any other environmental liability;

Execution of laboratory analysis for soil waste classification;

Preparation of a report outlining the Site data and recommendations based on the results of the surveys.

The scope of the Survey was to:

Identify hazardous materials within the accessible areas;

Identify potential soil contamination;

Identify other environmental liabilities at the site;

Provide recommendations on the removal strategies;

Prepare a Hazardous Materials Register for the Site.

2.2 Legislative framework and reference standards

The survey works, and the preparation of this report have been undertaken in accordance with the requirements of:

Law n. 257 of 27/03/1992, rules concerning the cessation of asbestos use;

Ministerial Decree n. 288 of 06/09/1994, standards and technical method for concerning the application of D.L. n. 257/92;

Ministerial Decree 14/05/1996, that sets the regulations and technical methodologies for remediation interventions, including those concerning asbestos;

Ministerial Decree n. 101 of 18/03/2003, concerning regulation for the realization of a mapping of the areas of the national territory affected by the presence of asbestos;

Legislative Decree (D.lgs) 152/06, which sets out the legislative framework applicable to all matters concerning environmental protection;

DPR 120/17, on management of excavated soil;

Legislative Decree (D.lgs) no. 257 of 18/09/2006, concerning the protection of workers from the risks deriving from exposure to asbestos;

Legislative Decree (D.lgs) no. 81 of 09/04/2008, regulations concerning health protection and workplace safety;

Final Governing Standards for Italy (I-FGS rev02, 2015);

Circular of the Ministry of Health of 15/03/00, No. 4 -Explanatory notes of the Ministerial Decree of September 1, 1998 concerning: "Provisions related to the Classification, Packaging and Labeling of

Dangerous Substances (synthetic vitreous fibers)";

Standing Conference for the Relations between the State, Regions and the Autonomous Provinces of Trento and Bolzano. Republic act no. 59/CSR dated 25/03/2015: "Agreement Guidelines for the

Application of Rules on Risk Exposure and Measures for the Prevention of Health Protection against

Synthetic Vitreous Fibers (SVF)", update of November 10, 2016;

67/548/EEC directive: "Classification, Packaging and Labeling of dangerous substances". The 1272/2008/EC regulation's final consolidated text";

Lombardy Region Decree no. 13541 dated 22/12/2010: "Approval Guidelines for the Clean-up of Exposed

Artifacts Containing Synthetic Vitreous Fibers";

2.3 Limitation and assumptions

The survey was undertaken by visual inspection using limited destructive means. Destructive sampling was performed in accordance with USAG Italy POC and at the presence of USAG Italy personnel on limited areas.

Findings of destructive inspection are limited to analyzed areas and could not be considered representative of overall conditions of dwelling units.

This report relates to the current state of the site of the investigation only and it is based on the results obtained from the investigated buildings and boreholes. Given the homogeneity of each type of the building (same construction features and materials) it has been assumed that the condition of each analyzed unit is applicable to the other units of the same type (see chapter 3). However, it has to be noted that each unit could have been subject to single renovation works. Therefore, AECOM cannot guarantee that the conditions of each type of unit are identical.

Only those areas of investigation at the Site that were accessible at the time of the inspection are covered in this report. Therefore, AECOM cannot guarantee that each and every hazardous material that exists within the area(s) of investigation has been located, identified and documented.

No other site-specific limitations were encountered during the course of this assessment.

3. Site location The USAG Italy Vicenza Military Community (VMC) is located in the central part of the Veneto Region and consists of five (5) main cantonment and training areas, namely Caserma Ederle, Villaggio Housing Area, Caserma Del Din, ASP#7 and Longare. Areas investigated under this study are located at the Villaggio Della Pace (Villaggio Housing

Area) and Caserma Ederle, where housing will be split. Site locations are shown in the attached Figure 1, a brief description of each installation is provided below.

Villaggio Housing Area (Figure 1, below) is a part of USAG Italy Military Community (VMC) and is located in the central part of the Veneto Region within the board boundary of Vicenza Municipality. It includes 77 acres (31 hectares) in the south-eastern part of the town of Vicenza. It is an urbanized area and is currently home to most on-post family housing, along with officer housing, a child development center, and kindergarten, elementary, and middle schools. Villaggio Housing is surrounded predominantly by agricultural fields to the northeast, northwest, and southwest, with a handful of single-family homes. A commercial development abuts the southeast boundary of the parcel.

Figure 1: Project Location at Villaggio Housing

Caserma Ederle (Figure 2, below) includes 151 acres (61 hectares) in the eastern part of the town of Vicenza.

Caserma Ederle is home to the U.S. Army Africa headquarters, part of the 173rd Airborne Brigade Combat Team, other tenant units and the U.S. Army Garrison Vicenza headquarters. It is an urbanized area of barracks with Army installations, soldiers’ lodgings and support facilities. Future housing area is located in the far northern corner of the main post near the Ederle Inn. The site is an approximately 11,000 m2 asphalt-paved motor pool with a single structure used for equipment maintenance. The triangular parcel is surrounded by a recycling center and a soccer field to the northwest, the Ederle Inn to the southwest, and the access lane to the main gate from Via Aldo Moro to the east.

Figure 2: Project Site at Camp Ederle

3.1 Available information / previous surveys

According to information provided by DPW – Housing division personnel Villaggio Housing Site was built in early ‘60ies. Villaggio Housing area dwelling units consists of 5 different types of units (see attached Figure 2), namely:

Type A: units 1, 2 and 3 – to be demolished under Phase 4

Type B: units 150 and 160 – to be demolished under Phase 4

Type C: units 4, 5, 6 and 7– to be demolished under Phase 1

Type D: units 32 and 33 – to be demolished under Phase 4

Type E and F: two bedrooms units and three bedrooms units – to be demolished under Phase 1, 2, 3 and 4.

The buildings belonging to each unit type are identical to each other, with same features and constructed using same materials.

The units were subject to several renovation activities during the years, to include asbestos remediation works.

According to the report “Asbestos resurvey, Vicenza” OGDEN, December 2002, provided by DPW Environmental

Division, and verbal information provided by O&M division, the crawl spaces located beneath the Villaggio Housing dwelling units has been abated between 1995 and 2002. All asbestos insulated pipes were replaced. The soil beneath the units, which is considered to be contaminated with asbestos fibers, was covered with polyethylene foil.

According to the “Asbestos inventory update”, dated May 2018 and provided by DPW Environmental Division, the following asbestos containing materials (ACM) or potential ACM were identified in the following areas belonging to

FY19 Family Housing project site:

Dwelling unit 4 (to be demolished under Phase 1): potential ACM presence on roof tar coverage. Asbestos detected in 2013 on building 6 and 7, which are identical to building 4.

Dwelling unit 5 (to be demolished under Phase 1): potential ACM presence on roof tar coverage. Asbestos detected in 2013 on building 6 and 7, which are identical to building 5.

Dwelling unit 6 (to be demolished under Phase 1): ACM presence on roof tar coverage. Asbestos detected in 2013.

Dwelling unit 7 (to be demolished under Phase 1): ACM presence on roof tar coverage. Asbestos detected in 2013.

According to the document “USAREUR – WIDE LEADED PAINT RISK ASSESSMENT” prepared by Woodward- Clyde International in November 1997 Lead based paint/dust was detected in the following areas belonging to

FY19 Family Housing project site with value > 0.5 in weight (paint) or > 40 ug/ft2 for floor dust and > 250 ug/ft2 for interior windows sills dust:

Dwelling unit 206 (to be demolished under Phase 2): dust, living room floor, under carpet near radiator and window

Dwelling unit 208 (to be demolished under Phase 2): paint, dining room varnished wood door

Dwelling unit 209 (to be demolished under Phase 2): dust, bathroom window near peeling ceiling paint

Dwelling unit 209: dust, kitchen/laundry floor, below damaged wall

Dwelling unit 220 (to be demolished under Phase 2): dust, kitchen floor, Dwelling unit 227 (to be demolished under Phase 2): dust, living room floor, near front door

Dwelling unit 228 (to be demolished under Phase 1): dust, kitchen window through

Dwelling unit 228: dust, kitchen window sill

Dwelling unit 230 (to be demolished under Phase 1): dust, black wall if kitchen cupboard under sink

Dwelling unit 233 (to be demolished under Phase 1): paint, kitchen varnished exterior black door At Caserma Ederle site, only one building was located within the area of future construction. No information on the construction date was provided, however the building appeared rather recent, probably constructed after 1992, when Italy deliberated the cessation of ACM use.

4. Survey methodology The identification of hazardous materials (asbestos, synthetic vitreous fibers, lead, mercury, Polychlorinated

Biphenyls, etc.) and environmental liabilities involved visual inspection of the accessible areas in the building 440 in Caserma Ederle (attached Figure 10 and Figure 11), buildings 1, 4, 32, 33, 223, 234, 150, 115 in Villaggio

Housing (attached Figure 2 through Figure 9) and collecting small samples of suspected materials.

Evaluation of the potential soil contamination consisted of the execution of 3 soil borings in Caserma Ederle (E31, E33 and E34) (attached Figure 13) and 13 soil borings in Villaggio Housing (H1, H3, H5, H7, H13, H18, H20, H21, H24, H25, H28, H30, K1) (attached Figure 112) and the laboratory analysis of the collected soil samples.

Soil waste classification and the determination of the possibility of soil reuse was based on the laboratory analysis of the samples collected from the soil borings from Caserma Ederle and Villaggio Housing.

Surveys methodology is detailed in the following paragraphs.

4.1 Hazmat

The buildings belonging to each unit type are identical to each other, with same features and constructed using the same materials. At least one building of each type was selected to be surveyed as a representative of the unit type.

In agreement with DWP, housing divisions, only vacant buildings were surveyed, in order to limit disturbance to tenants.

The hazmat survey was based on the visual inspection of the buildings 1, 32, 33, 440, 4, 223, 234, 150 and 115 by the means of mostly non-destructive methods. The only buildings in which the intrusive methods were performed, with the purpose of finding the in-wall pipe insulations, are: building 4, 234 and 223 (the intrusive methods’ location is indicated on the figures corresponding to the buildings). The visual inspection and the collection of the small samples (91 in total) of the materials potentially containing asbestos, synthetic vitreous fibers (SVF) and lead were performed on the 27th of March, 3rd and 11th of April, 2nd, 14th of May, and 4th of November 2019 at Caserma Ederle and Villaggio Housing area. Samples were collected from homogenous groups of materials, from discreet locations without damaging their integrity.

Asbestos and SVF During the survey, samples for asbestos and SVF analysis, 31 and 37 respectively, were collected from the buildings 33, 440, 4, 223, 234, 150, 115, 1 and 32. The sampling tool was used to collect sample in airtight containers. The spot from which the sample was collected was treated with the coating spray in order to both make the sampling spot visible and reduce the airborne emissions of the asbestos and SVF. The collected bulk samples were subsequently subjected to analytical laboratory test for the verification of asbestos and SVF presence. The table below reports the collected samples:

Asbestos samples

Building number Sample number Sampled material

440-2 Plaster and paint

440-3 Gasket

440-5 Plaster

4A-C1 Roof tar coverage - building

4A-C2 Chimney

4A-C3 Chimney's putty and glue

4A-C4 Chimney

4B-6 Roof tar coverage – external storage room

223A-Tetto Roof tar coverage - building

223A-1 Gasket

223A-2 Gray putty

223A-9 Roof tar coverage– external storage room

223A-12 Putty on AC pipe

234A-Tetto Roof tar coverage - building

234A-4 Gray putty

234A-7 Black putty

234D-1 Gasket

B334B-40 Roof tar coverage – external storage room

115C-Tetto Roof tar coverage - building

115C-2 Roof tar coverage– external storage room

115C-6 Gray putty

1-Tetto Roof tar coverage - building

B1-3 Upper roof tar coverage – external storage room

B1-4 Grey roof tar coverage – external storage room

B1-5 Lower roof tar coverage – external storage room

B1-12 Gray putty

32 32A-Tetto Roof tar coverage - building

B33-1 Grey putty

B33-2 Grey putty

B33-3 Roof tar coverage – external storage room

B33-12 Gray putty

SVF

Building number Sample number Sampled material

440 440-4 Insulation

B1-2 Insulation

B1-7 Insulation

B1-8 Insulation

B1-10 Insulation

B1-11 Insulation

4 4A-1 Insulation

SVF

Building number Sample number Sampled material

4A-2 Insulation

4A-C5 Insulation

223A-6 Insulation

223A-7 Insulation

223A-10 Insulation

223A-11 Insulation

223A-13 Insulation

223B-1 Insulation

234A-5 Insulation

234A-6 Insulation

234A-8 Insulation

234A-9 Insulation

234A-13 Insulation

234D-2 Insulation

150-1 Insulation

150-2 Insulation

150-3 Insulation

150-10 Insulation

150-11 Insulation

150-12 Insulation

150-13 Insulation

B33-7 Insulation

B33-8 Insulation

B33-9 Insulation

B33-10 Insulation

B33-11 Insulation

115-3 Insulation

115-4 Insulation

115-5 Insulation

115-7 Insulation

Lead During the survey, the samples were collected form the buildings 1, 4, 33, 440, 223, 234, 150 and 115. The samples in the form of a paint chip were collected using a cutting tool with the aid of a clean white sheet of paper for the collection of the sample, which was subsequently transferred into suitable glass container. Containers were immediately placed in suitable boxes and subsequently delivered to the selected laboratory for analysis. The list of the samples and the analysis to be performed were indicated in the Chain of Custody form, which accompanied samples during the transport to the laboratory. The table below reports the collected samples (the letter in the sample number indicated the unit of the building from which the sample was collected):

LBP

Building number Sample number Sampled material

440-1 Pipe paint

440-2 Plaster and paint

440-5 Plaster and paint

B1-1 Fireplant paint

B1-6 Backyard storage room door frame paint

B1-9 Door paint

4A-3 Door paint

4B-4 Door paint

4B-5 Paint

223A-3 Door paint

223A-4 Door paint

223A-5 Jamb paint

223A-8 Gate paint

234A-1 Filter paint

234A-2 Door paint

234A-3 Door paint

234A-12 Jamb paint

234D31 Fire plant paint

150 150-4 Door paint

B33-4 Backyard gate paint

B33-6 Door paint

B33-9 Backyard gate paint

115C-1 Fire plant paint

115C-8 Door paint

Other hazardous materials The presence of other hazardous material such as mercury, Polychlorinated Biphenyls (PCB), and others was not observed in the Buildings under investigation (buildings 1, 4, 223, 234, 150, 115, 32, 33 and 440), however no specific investigations have been carried out on thermostats or ballasts inside fluorescent light fixtures to verify the presence of Mercury and PCBs, respectively, so their presence cannot be excluded.

Laboratory analysis The methods according to which the compounds were analyzed are presented in the table below:

Parameters Methods

Asbestos ESEM/EDS, according to IS 5.2.1 Rev. 05 2017.

SVF EDS (chemical composition), according to IS 7.5.262018

REV.04, and with SEM (average geometric diameter length weighted), according to “Circolare Ministero Sanità n. 4 del

15/03/2000 GU n° 88 del 14/04/2000 + Reg. CE 761:2009 del

23/07/2009 GUCE L220/1 del 24/08/2009 All II”

Lead CNR IRSA 10 Q 64 Vol 3:1985 + APAT CNR IRSA 3020 Man

29, 2003. According to I-FGS 2012, rev 2, 2015, the reference limit for lead is equal to 5000 mg/kg (based on I-FGS rev02, 2015, C17.2.17).

4.2 Soil environmental survey

In order to perform the potential soil contamination and determine the European Waste Catalogue (EWC) code of excavated soil to be disposed and the possibility of soil reuse, 4 environmental soil samples were collected from 3 boreholes drilled at Caserma Ederle (E32, E 33 and E34) and 14 samples from 13 boreholes drilled at Villaggio Housing (H1, H3, H5, H7, H13, H18, H20, H21, H24, H25, H28, H30, K1) (attached Figure 12 and 13) during geotechnical investigations. The description of the activities is provided below:

Preliminary activities and utility avoidance Prior to drilling the following activities were conducted:

Pre-survey of the investigation site and review of underground utilities maps;

Identification of sampling locations;

Request for digging permits;

Georadar survey to verify presence of underground utilities;

Decontamination Area and Work Area set up.

Utility clearance Drilling locations have been checked and cleared for underground utilities by designated onsite representatives performing a georadar investigation before starting with drilling activities. Final drilling locations were identified and marked.

Decontamination area and work area setup In order to allow the decontamination of the drilling equipment through appropriate washing and the storage of plastic boxes containing soil cores, two temporary storage and decontamination areas were installed at Ederle and

Villaggio Housing, at the location specified by DWP on site personnel.

Sampling work area was defined around each borehole and was marked with high-visibility ribbon and plastic cones. Access to work areas was limited to contract site personnel and authorized individuals.

At the end of the activities both decontamination area and work area were returned to their original condition.

All investigation derived waste was disposed-off in accordance with applicable legislation.

Drilling activities Drilling activities were performed using a dry continuous coring rotopercussion method with a free-standing hydraulic drill rig with 101 mm diameter core barrel and 127 mm protective casing. No drilling fluids were used during drilling operations.

The extracted cores were placed in plastic core-boxes and photographed. The work was supervised by an AECOM field coordinator, who also proceeded to soil sampling and to the reconstruction of the lithostratigraphy of the investigated area.

At the end of the drilling activities boreholes were filled using clean gravel and sand mixture and a 100 cm bentonite layer.

Soil sampling The soil samples were collected from selected boreholes. Four samples were collected from Caserma Ederle and

14 samples from Villaggio Housing. The summary of the sampling activities is summarized in the table below:

Borehole Number of samples Sample depth

Caserma Ederle

Borehole E34 1 1,0-1,5 m

Borehole E31 1 0,5-1,5 m

Borehole E33 2 0-1,0 m and 2,8-3,2 m

Villaggio Housing

Borehole H1 1 0,5-1,0 m

Borehole H3 1 0,5-1,0 m

Borehole H5 1 0,5-1,0 m

Borehole H7 1 0,7-1,0 m

Borehole H13 1 0,8-1,1 m

Borehole H20 1 0,7-1,0 m

Borehole H21 1 0,7-1,0 m

Borehole H24 1 0,7-1,0 m

Borehole H25 2 0,7-1,0 and 1,2-1,5 m

Borehole H28 1 0,7-1,0 m

Borehole H30 1 0,7-1,0 m

Borehole K1 1 0,7-1,0 m

Samples were collected in containers provided by the laboratory and properly labelled with ID sample. Each piece of equipment used for multi-sample collection was decontaminated before collecting the next sample. Containers were immediately placed in a cooler, packed with frozen blue ice and delivered to the Laboratory.

The list of the samples and the analyses to be performed were indicated in the Chain of Custody form, which accompanied samples during the transport to the selected laboratory.

Laboratory analysis The samples collected during the soil environmental survey were analyzed by Chelab S.r.l. Laboratory for the presence of Metals, Polychlorinated Biphenyls (PCBs), Hydrocarbon Compounds, Volatile Halogenated

Compounds, Volatile Aromatic Compounds, Volatile Aromatic Compounds (xylenes), Semivolatile Aromatic Amine, Chloronitrobenzenes, Semivolatile Aromatic Compounds, Semivolatile Chlorinated Compounds, Phenolic

Compounds, Phtalates, Polycyclic Aromatic Hydrocarbons (PAHs), Nitrogen Pesticides, Chlorinated Pesticides, Chlorinated Pesticides (Chlordane).

The methods according to which the compounds were analyzed are presented in the table below:

Parameters Methods

Metals EPA 3051A 2007, EPA 6020B 2014, EPA 3060A 1996 EPA

7199 1996

Polychlorinated Biphenyls (PCBs) EPA 3550C 2007, EPA 8015D 2003, EPA 5035A 2002

Volatile Halogenated Compounds, Volatile Aromatic

Compounds

EPA 8260D 2018, EPA 5035A 2002

Volatile Aromatic Compounds (xylenes) EPA 8260D 2018

Semivolatile Aromatic Amine, Chloronitrobenzenes, Semivolatile Aromatic Compounds, Semivolatile Chlorinated

Compounds, Phenolic Compounds, Phtalates, Polycyclic

Aromatic Hydrocarbons (PAHs), Nitrogen Pesticides, Chlorinated Pesticides, Chlorinated Pesticides (Chlordane)

EPA 8270E 2018 and EPA 3550C 2007

4.3 Waste classification

Soil waste representative sample was collected at both Caserma Ederle and Villaggio Housing and sent to the

Laboratory for the analysis with the purpose of soil waste classification and to verify the possibility of soil reuse in accordance with DPR 120/17.

4.4 Restrictions on Survey / Areas Not Accessed

It is possible that materials and conditions, which may be concealed within inaccessible areas, may not have been located during the survey.

5. Results

5.1 Hazmat

Hazmat samples were collected and analyzed by the accredited laboratory CSG Palladio S.r.l.

Survey results are reported in the following:

Asbestos presence was detected in 9 samples: 4A-C2 (chimney), 4AC4 (chimney) and 4A-6 (roof tar coverage – external storage room) in the building 4, 223A-9 (roof tar coverage – external storage room) in the building 223, B234B-40 (roof tar coverage in the external storage room) in the building 234, B1-3, B1-4 and B1-5 (roof tar coverage in external storage room) in building 1 and in B33-3 (roof tar coverage in the external storage room) in building 33.

Soil under the basement of building 4, 223 and 234, covered by polyethylene foil, may contain asbestos, as indicated by a warning sign.

All the samples (with one exception of the sample 150-2 and B33-11) collected from the insulation and analyzed for the SVF presence were classified as carcinogen 2nd category.

The presence of the lead in paint with the values > 5000 mg/kg in the paint was detected in the sample 440-1 (pipe paint) in the building 440, 4A-3 (door paint thermal plant) in the building 4 and in the sample

223A-8 (external backyard gate paint) from in building 223.

No in-wall pipes asbestos/SVF insulation was detected in the buildings 4, 233 and 234 where the intrusive methods were used.

No mercury and PCB containing materials were detected during the visual inspection.

All the samples and their location are presented in the attached figures (Figure 3 though Figure 9 and Figure 11).

The report of the hazmat survey, with the photos and the laboratory analysis are provided in the Attachments 1A and 1B respectively. The list of hazmat present and potentially present at each building is provided in Attachment

1C.

5.2 Soil Environmental Survey

Laboratory results were compared against the Contamination Threshold Concentration (Concentrazioni Soglia di

Contaminazione - CSC) values established by D.Lgs. 152/06, Annex 5 Part IV Tab 1/B – industrial areas.

There were no exceedances of the regulatory limits in the soil samples taken, with the exception of arsenic, which was found in concentration exceeding the threshold limit in sample collected at Borehole E33 between 2.8 and 3.2 m bgs (91 mg/kg against a threshold limit of 50 mg/kg). The sample was collected in the capillary fringe zone.

Complete analytical results are reported in Attachment 2A and 2B. Laboratory analytical certificates are shown in

Attachment 2C.

5.3 Waste classification

Based on the laboratory analysis of the samples from Caserma Ederle and Villaggio Housing (see Attachment 3), the European Waste Code (EWC) that is associated to the soil is 17 05 04 – soil and stones other than those mentioned in 17 05 03 (i.e. non-hazardous waste).

The analysis for reuse purpose performed in accordance with DPR. 120/2017 showed that the excavated soil has the potential to be reused on site (no exceedances of threshold values detected).

6. Conclusions and recommendations

6.1 Hazmat

From the conducted study the following conclusions were made:

6.1.1 Villaggio Housing

BUILDING 4 – Type C buildings Unit A. On the roof there are 4 little chimneys, 10 cm diameter (sample 4-C2). The same on unit 4B. They all contain asbestos.

Unit A. On the roof there is 1 chimney (sample 4-C2), 25 cm diameter. It contains asbestos. The same on unit 4B.

Roof tar covering does not contain asbestos.

Backyard storage room’s roof tar covering contains asbestos (sample 4B-6).

Soil under the basement, covered by polyethylene foil, may contain asbestos, as stated by a warning sign.

Empty space in the wall between bathroom 1 and 2 (air-shaft, pointed on map) contains no pipes with hazardous materials (surveyed with intrusive methods).

All insulations made by artificial glass fibers should be considered as carcinogen (2nd cat.) meaning: air conditioning pipes insulation (samples 4A-1 and 4A-C5), furnace insulation (sample 4A-2).

External door paint contains high amount of lead: green paint > 5000 ppm (thermal plant room, sample

4A-3); yellow paint (backyard storage room door) > 1000 ppm.

All hazardous materials found in the building 4, unit A, should be considered present in the symmetrical unit B.

These results can be extended to all other buildings of same type “C” (buildings 5, 6, and 7) except for the roof tar coverings (according to the document “Asbestos inventory update”, dated May 2018 during the survey of 2013, asbestos was found in the tar roof covering in the buildings 6 and 7). Type C buildings are to be demolished under Phase 1.

BUILDING 223 – Type F buildings Unit A. Roof tar covering of the backyard storage room contains asbestos (sample 223A-9). All backyard storage’s roof tar coverings of the same type of the building should be considered as asbestos bearing, (except of the building 115 (sample 115C-2) where no asbestos was detected).

Main roof tar covering is asbestos free.

Unit A. Soil under the basement, covered by polyethylene foil, may contain asbestos, as stated by a warning sign.

Unit A. All insulations made by artificial glass fibers should be considered as carcinogen (2nd cat.)

meaning: air conditioning pipes insulation (sample 223A-10), other pipes in thermal plant room (sample 223A-11), boiler insulation (sample 223A-13), doors insulation (samples 223A-6 and 7).

Unit B. Insulation of the AC pipes at the entrance (false ceiling) should be considered as carcinogen (2nd cat.)

Unit A. Backyard’s small gate green paint contains high amount of lead (> 10000 ppm) (sample 223A-8).

Doors paint contains only small amount of lead (samples 223A-3, 223A-4, 223A-5).

Unit A. Living-room floor and wall were surveyed using intrusive methods to detect in-wall insulations: no hazardous materials were found.

Prepared for: NAVFAC Atlantic AECOM

Unit A. Door paint in the thermal plant room was not analyzed but should be considered as lead bearing > 1000 ppm (as in the building 115 (sample 115C-8)).

These results can be extended to all the units of the building 223 and to all the buildings of same type “F”.

Type F buildings are to be demolished under Phase 1, 2, 3 and 4.

BUILDING 234 – Type E buildings Unit A. No asbestos-bearing materials were found.

Unit B. Roof tar coverage of the backyard storage room contains asbestos (sample B234B-40). All backyard storage room tar coverages of the same type of building should be considered as asbestos bearing.

Unit A. Roof tar covering is asbestos-free.

Unit A. The floor and the wall in the living room as well as the wall in the laundry room were surveyed with the use of destructive methods to detect in-wall pipe insulation: no hazardous materials were found.

Unit A. Soil under the basement, covered by polyethylene foil, may contain asbestos, as stated by a warning sign.

Unit A. All insulations made by artificial glass fibers should be considered as carcinogen (2nd cat.)

meaning: air condition pipes insulation (sample 234A-5 and 6), other pipes in the thermal plant room

(sample 234A-9), boiler insulation (sample 234D-2), doors insulation (samples 234A-8 and 13).

Unit A. External door green paint should be considered as lead bearing > 1000 ppm; thermal plant door paint should be considered the same.

Unit A. Backyard’s small gate paint was not tested: should be considered as containing high amount of lead (> 10000 ppm) as in the building 223 (sample 223A-8).

These results can be extended to all units of the building 234 and also to all the buildings of same type “E”. Type E buildings are to be demolished under Phase 1, 2, 3 and 4.

BUILDING 150 – Type B buildings No asbestos bearing materials were found. Roof coverage is made with tiles.

Furnace water pipe and boiler insulations (thermal plant room) should be considered as carcinogen (2nd cat.).

Air-conditioning pipe insulation in thermal plant room could be considered not carcinogen (sample 150- 2), however other air-conditioning pipes insulations should be considered as carcinogen (2nd cat.).

Other (water) pipes insulation, and remains of insulation made of artificial glass fibers should be considered as Carcinogen (2nd cat.). There are plenty of them in crawl space.

Paint on the door in the thermal plant room contains lead (sample 150-4), slightly less than 5000 ppm.

Basement wasn’t accessible: only basement windows could be inspected.

These results can be extended to all other building of same type “B”. Type B buildings are to be demolished under Phase 4.

BUILDING 115 – Type F buildings Building 115 was surveyed to compare the results with building 223 (same type, “F”).

No asbestos bearing materials were found.

Unit C. All insulations made by artificial glass fibers should be considered as carcinogen (2nd cat.)

meaning: air conditioning pipes insulation (sample 115C-3), boiler and furnace insulation (samples 115C-

4 and 5), doors insulation (samples 115C-7).

Unit C. Paint of the door in the thermal plant room contains lead (> 1000 ppm).

Unit C. Overall situation can be considered the same as Building 223.

Unit C. Basement was not inspected. Soil under basement should be treated as possible asbestos bearing as in building 223 and other type “F” buildings.

BUILDING 1 (Type A) Building 1. Tar coverage of backyard store room contain asbestos (samples 223A-9). All backyard storage rooms tar coverages of the same type of building should be considered as asbestos bearing.

Main roof tar covering is asbestos free.

Building 1. All insulations made by artificial glass fibers should be considered as Carcinogen (2nd cat.):

meaning air conditioned pipes insulation (samples B1-7, B1-10), boiler insulation (sample B1-11), thermal plant doors insulations (sample B1-8), insulation behind each water nozzle in the fireplant (almost in every part of the apartment) (sample B1-2).

These results can be extended to the other building of same type “A”. Type A buildings are to be demolished under Phase 4.

BUILDING 32 and 33 (type D) Building 32 only roof tar covering was sampled, and no asbestos was found.

Building 33, unit C. Tar coverage of backyard storage room contains asbestos (sample B33-3). All backyard storage rooms tar covering of the same type of building should be considered as asbestos bearing.

Building 33. Main building roof tar coverage is asbestos free (according to results of Sample 32-TETTO, from building 32).

Building 33, unit C. All insulations made by artificial glass fibers should be considered as Carcinogen (2nd cat.) meaning: air conditioning pipes insulation (sample B33-9), other pipes in thermal plant room (sample

B-33-10 and B33-11), boiler insulation (sample B33-8), door insulation (sample B33-7).

These results can be extended to all units of Building 33 and so to all other building of same type “D”.

Type D buildings are to be demolished under Phase 4.

Given the homogeneity of each type of building (same construction features and materials) it has been assumed that the condition of each analyzed unit is applicable to the other units of the same type. It has to be noted however that each unit could have been subject of single renovation works. Therefore, AECOM cannot guarantee that the conditions of each type of unit are identical.

Even though no in-wall insulation containing hazardous materials was found during this survey, it is possible that some old pipes and related insulation are present inside the buildings.

6.1.2 Caserma Ederle

BUILDING 440

No asbestos bearing materials were found.

Furnace insulation in power plant room should be considered as carcinogen (2nd cat.).

Red paint on pipes contains very high lead content: > 10000 ppm (sample 440-1).

A summary of hazmat present and potentially present at each building is provided in Attachment 1C.

It is recommended to pay particular attention during demolition work and to proceed, where necessary, according to the procedures described in Ministerial Decree 06/09/94, DLgs 152/06, DLgs 81/2008 and Lombardy Region Decree no. 13541 dated 22/12/2010. Attention should be payed not to mix clean soil with any soil impacted as a result from ACM/LBP abatement, or any unforeseen soil condition of the property. The presence in the buildings of other hazardous materials not investigated during the surveys summarized in this document is not excluded;

therefore the demolitions must be carried out by adopting all the necessary precautions.

6.2 Soil environmental survey

None of the analyzed parameters in the collected soil samples was above the threshold limits values with the exception of Arsenic in the sample collected from the borehole E33 at Caserma Ederle (91 mg/kg). It is worth noticing that based on the available publications (e.g. ARPAV, 2016), the Veneto Region is not infrequently characterized by Arsenic content in soil and groundwater higher than applicable threshold limits.

6.3 Waste classification

Based on the laboratory analysis of the samples from Caserma Ederle and Villaggio Housing (see Attachment 3).

the European Waste Code (EWC) that is associated to the soil is 17 05 04 – soil and stones other than those mentioned in 17 05 03 (i.e. non-hazardous waste) and it can be disposed at landfills as non-hazardous waste.

There are no exceedances of the limit values established by D.Lgs. 152/06 Annex 5 Part IV Tab 1/B – industrial areas. According to DPR 120/17 the excavated soil has the potential to be reused on site. Prior to the reuse the

Contractor shall follow all the prescriptions dictated by DPR 120/17.

DPR 120/17 is however not applicable to soil where exceedances of the regulatory limit (D.Lgs 152/06 Annex 5

Part IV Tab 1/A-B, depending on soil use) or natural background values are found. It is therefore recommended to dispose of in authorized landfills the excavated soil deriving from excavation conducted in the areas where exceedance for Arsenic were found (Caserma Ederle, area nearby building 440).

Considering the elevated concentration or Arsenic in soil sample near building 440 it is recommended to excavate the soil from this area with appropriate precautions to mitigate dust diffusion, such as, and not limited to:

Spray water in the area while digging;

Use of plastic sheets to cover excavated soil.

Figure 1 – site location

A3

N

0.40 2Km

GRAPHICAL SCALE

Caserma Ederle

Villaggio Housing area

Vicenza

SITE LOCATION - VILLAGGIO HOUSING AREA

AND CASERMA EDERLE

FIGURE 01:

US Army Corps of Engineers Contract N. N33191-15-D-0811 Task Order Task Order N6247018F4086 FY19 Army Family Housing project P-759 - USAG ITALY VMC Hazardous material and Environmental Report

Via Watt, 27 I-20143 Milano

Tel. +39.02.422556.1 Fax. +39.02.422556.21

DESCRIPTIONREV. DATE DES. CHK. APP.

ofSheetDRAW N°SCALEPLOTCODE JOB N°

FIGURE 01 111:40.0001:16055776504W01

E.N.K.W.G.F.06/21/2019-0

Figure 2 – General plan “Villaggio della Pace”, surveyed buildings

305A

305A

CO

CO

CO

CO

CO

CO

CO

CO

CO

CO

CO

CO

CO

CO

CO

CO

CO

CO

CO

CO

CO

CO

S

S

S

S

S

S

S

S

S

CO

CO

CO

CO

S

CO

S

S

S

S

S

D

D

D

D

D

D

D

D

D

D

D D

D

D

CB

CB

CB

CB

CB

CB

CB

D

D

D

D

D

D

D

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D

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VILLAGGIO

ACCESSO

B1

B150

B4

B32

B115

B223

B234

B33

A3

N

300 150m

GRAPHICAL SCALE

GENERAL PLAN "VILLAGGIO DELLA PACE",

SURVEYED BUILDINGS

FIGURE 02:

US Army Corps of Engineers Contract N. N33191-15-D-0811 Task Order Task Order N6247018F4086 FY19 Army Family Housing project P-759 - USAG ITALY VMC Hazardous material and Environmental Report

Via Watt, 27 I-20143 Milano

Tel. +39.02.422556.1 Fax. +39.02.422556.21

DESCRIPTIONREV. DATE DES. CHK. APP.

ofSheetDRAW N°SCALEPLOTCODE JOB N°

FIGURE 02 111:2.5001:16055776504W02R1

E.N.K.W.G.F.11/17/2020-0

LEGEND

BUILDING TYPE A

BUILDING TYPE B

BUILDING TYPE C

BUILDING TYPE D

BUILDINGS TYPE E - F

Figure 3 – Sampling location, Villaggio

– hazmat – Building 4

LIVING ROOM

303 SF

BEDROOM 1BEDROOM 2BEDROOM 3

HALL

LAUNDRY

87 SF

W

D

STORAGE RM.

BATH 1BATH 2

BEDROOM 4

DW

KITCHEN

100 SF

REF

DINING ROOM

112 SF

65x65 CEILING SLAB OPNG. SEE AS-1

UNIT A

UNIT A - ROOF

4A-C3

4A-C1

4A-C4

4A-1

4A-2

4A-3

EXTERNAL

STORAGE

ROOM

4B-5

4B-6

4A-C5

4B-4

(WALL)

(PIPE INSIDE

THE WALL)

(PAVEMENT)

4A-C2

CHEMINY

(AIR SHAFT)

A3

LEGEND

ASBESTOS SAMPLE

ASBESTOS PRESENCE

SYNTHETIC VITREOUS FIBERS (SVF)

SVF CARCINOGEN 2ND CAT

LEAD SAMPLE

LEAD > 5000 mg/kg

SAMPLING LOCATION - VILLAGGIO - HAZMAT -

BUILDING 4

FIGURE 03:

US Army Corps of Engineers Contract N. N33191-15-D-0811 Task Order Task Order N6247018F4086 FY19 Army Family Housing project P-759 - USAG ITALY VMC Hazardous material and Environmental Report

Via Watt, 27 I-20143 Milano

Tel. +39.02.422556.1 Fax. +39.02.422556.21

DESCRIPTIONREV. DATE DES. CHK. APP.

ofSheetDRAW N°SCALEPLOTCODE JOB N°

FIGURE 03 11-1:16055776504W03

INTRUSIVE SAMPLE

Figure 4 – Sampling location, Villaggio

– hazmat – Building 223

GROUND FLOOR PLAN - TYPE "F" FIRST FLOOR PLAN - TYPE "F"

UNITS A & B

223A-TETTO

ROOF

223A-13

223A-7

223A-9

223A-3

223A-8 223A-11

223A-10 223A-12

223A-1&2

223B-1

223A-4&5

223A-6

(PAVEMENT)

(WALL)

EXTERNAL

STORAGE

ROOM

(BACKYARD

GATE)

A3

10 5m

GRAPHICAL SCALE

SAMPLING LOCATION - VILLAGGIO - HAZMAT -

BUILDING 223

FIGURE 04:

US Army Corps of Engineers Contract N. N33191-15-D-0811 Task Order Task Order N6247018F4086 FY19 Army Family Housing project P-759 - USAG ITALY VMC Hazardous material and Environmental Report

Via Watt, 27 I-20143 Milano

Tel. +39.02.422556.1 Fax. +39.02.422556.21

DESCRIPTIONREV. DATE DES. CHK. APP.

ofSheetDRAW N°SCALEPLOTCODE JOB N°

FIGURE 04 111:1001:16055776504W04

E.N.K.W.G.F.06/21/2019-0

LEGEND

ASBESTOS SAMPLE

ASBESTOS PRESENCE

SYNTHETIC VITREOUS FIBERS (SVF)

SVF CARCINOGEN 2ND CAT

LEAD SAMPLE

LEAD > 5000 mg/kg

Figure 5 – Sampling location, Villaggio

– hazmat – Building 234

GROUND FLOOR PLAN - TYPE "E"

FIRST FLOOR PLAN - TYPE "E" GROUND FLOOR PLAN - TYPE "E"

UNITS C & D

UNITS A & B

bedroom #1 bedroom #2 bedroom #1 bedroom #2 room bathroombathroom room living room kitchen entrance entrance living room kitchen kitchen kitchen living roomliving room entrance entrance

234A-4 234A-TETTO

ROOF

234A-7

234D-1

234A-9 234A-8

234A-13

234D-2

234D-31

234A-12

234A-2&3

234A-1

(PAVEMENT)

(WALL)

(PIPE INSIDE

THE WALL)

234A-6 234A-5

B234B-40

EXTERNAL

STORAGE

ROOM

A3

20 10m

GRAPHICAL SCALE

SAMPLING LOCATION - VILLAGGIO - HAZMAT -

BUILDING 234

FIGURE 05:

US Army Corps of Engineers Contract N. N33191-15-D-0811 Task Order Task Order N6247018F4086 FY19 Army Family Housing project P-759 - USAG ITALY VMC Hazardous…