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and the soil management of metals contaminated historical fill. Our goal was to
reuse the soil on site to reduce disposal cost and keeping the over budget
reduced.

City of Boston (DND) — Dorchester, MA (Project Manager/Engineer: 201 3)
Served as Project Manager for several ASTM Phase |’s for the City of Boston.
The vacant lots were being converted to community gardens.

IBM ~ Essex Junction, VT (Project Manager/Engineer: 2012 - Present)

Mr. Gill worked as a project engineer to improve the efficiency and reduce the
annual operation cost of the current SVE system. The SVE system is a single
blower connected to several areas of concern. | was able to re-evaluate the
individual areas and reduce the amount of suction needed which reduced the
amount of energy needed and cause a net savings while still removing
contaminates from the soil. In addition he has been developing ways to optimize
the groundwater treatment system. He has been involved in data management
and quarterly reports to the state. Performed a project assessment and
developed a plan to abandon unused monitoring wells and reduce the risk of
additional contamination form accidental spills.

City of Boston (DND) — Mattapan, MA (Project Manager/Engineer: 2012)

Mr. Gill served as Project Manager working under the Brownfield program for the
former Cote Ford site in Mattapan. Inventoried and redeveloped existing
groundwater monitoring wells installed almost 20 years ago. Collected ground
water samples and compared them to current standards and to determine if
natural attenuation has cleaned up the site to clear its current restrictions. Work
was documented in an ASTM Phase II report.

NSTAR Kendall Station - Cambridge, MA (Project Manager/Engineer: 201 2)
Mr. Gill served as Project Manager for the design, permitting, and installation of a
new duct bank connecting two substations. The duct bank route passed through
several different types of contaminated areas and required additional notifications
and requirements. Mr. Gill managed the coordination of six different companies
to insure the completion of the project on-time and on-budget.

Young’s Corner Station Bangor Hydro Electric Company (Project
Manager/Engineer: 2011)

Mr. Gill designed and implemented a hydrogen peroxide application system to
remediate a glycol spill form the cooling system to a diesel electric engine.
Applied over 200 gallons of peroxide into the area over the course of two days.
Monitored the exothermic reaction to insure no damage to the underground
electric cables and grounding grid. Also monitored for hydrogen buildup to insure
minimal risk of fire around the engines.

MADOT NOx Monitoring Network — Boston, MA (Project Manager/Engineer:
2011)

@TRC

Mr. Gill served as Project Engineer for the design, building, installation, and
operation of a four station NOx monitoring network for the Dewy Street Tunnel.
He is responsible for the daily operation and monthly reports to the MADOT and
MADEP. The network is an automated system performing daily and weekly
calibrations and then emailing any failures. The system is web based and allows
for the DEP and DOT to view the data real time from their offices.

MADOT Auditing Tunnel Monitoring Network — Boston, MA (Project
Manager/Engineer: 2008 - Present)

Mr. Gill served as Project Engineer for the quarterly auditing of the MADOT
(Central Artery Tunnels) CO and PM monitoring network. He provides an
independent audit of the system by challenging the instruments with multi point
calibration system. In addition he is on call for any problems with the monitoring
system. He has been involved with the upgrading of the particulate monitors and
the data acquisition system.

AGG, Site Oversight — North Adams, MA (Field Supervisor: 2004)

Mr. Gill served as Field Supervisor over a low level radioactive waste cleanup
site. Worked with two other contracted companies to do the actual handling and
processing of the waste.

City of Lowell Civic Stadium, Site Oversight — Lowell, MA (Field Supervisor:
2005)

Mr, Gill served as Field Supervisor of the excavation of lead contaminated soil
and utilized a Niton XRF, XL model screening tool in the field to screen soil for
lead contamination. Field activities included the coordination of on-site
contractors, calibration of the XRF instrument, compliance with project quality
assurance protocols, screening of lead contaminated soil and the determination
of soil disposal.

Red Roof Inn, Site Investigating — Various Sites, IL (Field Investigator:
2005)

Mr. Gill served as field investigator for several locations to investigate any
possible environmental impacts associated with the site. investigation included a
database search for all known environmental impacts (LUST, UST, spills, etc.), a
site walk through, a visual inspection of the database search sites, and
contacting local officials (fire department, town manager, and health department)
for any other information.

DCPO, Limited Removal Action (LRA) — Belchertown, MA (Field
investigator: 2005)

Mr. Gill serves as Field Investigator who cleaned up areas of known oil
contamination. The soil was removed in drums and disposed. Confirmatory
samples were taken from the areas to insure all contamination was removed.

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Massachusetts Electric Company, Massachusetts Contingency Plan (MCP)
- MA (Emergency Response Team: 2006)

Mr. Gill served as part of an emergency response team to supervise clean up
actions of accidental release. Responsible for getting samples for background
and confirmatory analysis.

Gennisess Health Care, Site Investigating — Various Sites, NH (Project
Investigator: 2006)

Mr. Gill served as project investigator at several locations to investigate any
possible environmental impacts associated with the site. Investigation included a
database search for all known environmental impacts (LUST, UST, spills, etc.), a
site walk through, a visual inspection of the database search sites, and
contacting local officials (fire department, town manager, and health department)
for any other information.

Miscellaneous Remediation Work

Worked with the Hazardous Waste group helping on site sampling and
monitoring. Performed soil, sediments, ground water, and surface water
sampling. Filled out all paper work for sample shipping and helped process the
data from the lab.

Environmental Compliance Audits

Confidential Client - NH (Due Diligence) 2017

Reviewed environmental records for several fossil fuel burning power plants to
determine current compliance status. Focused on hazardous waste, ground
water monitoring permits, and ash handling. One facility has a flue gas
desulfurization process which generates gypsum for wall board manufacturing.

Wheelabrator — Saugus, MA (Environmental Auditor (AIR): 201 3)

Mr. Gill was part of a large auditing team performing internal audits of the
complete operations of the Wheelabrator Saugus facility. Mr. Gill's role was the
compliance with ail air regulations including both state and federal. Reviewed
their training records and all submissions to the MADEP to insure their
completeness. Went through their maintenance and operation records for their
continuous monitoring system to again insure compliance with Part 60, Part 75
and current operation permits.

Salem Harbor Generation Station — Salem MA (Environmental Auditor
(AIR): 2012)

Mr. Gill spent three days on site auditing the power plant to insure compliance
with all air regulations and their current Title V permit. Reviewed their training
records and all submissions to the MADEP to insure their completeness and that
they were filled on time. Went through their maintenance and operation records
for their continuous monitoring system to again insure compliance with Part 60,
Part 75 and current operation permits.

@TRC

Wheelabrator — Claremont NH (Environmental Auditor (AIR): 2012)

Part of a larger auditing team to perform an internal audit of the complete
operations of the Wheelabrator Claremont facility. My role was the compliance
with all air regulations including both state and federal. Reviewed their trainin
records and all submissions to the NHDEP to insure their completeness. Went
through their maintenance and operation records for their continuous monitoring
system to again insure compliance with Part 60, Part 75 and current operation
permits.

AES — Various Locations (Environmental Auditor: 2010 - 2012)

Responsible for updating AES’s internal audit database for TRC performed
audits. Mr. Gill would input all the findings from the various auditors into the
database while relating them to the current AES's audit protocols. All the findings
would be then submitted to the facility for their comments. | would then finalize
the audit with both the auditor and the facility.

Air Permitting

MWRA, Emission Control Plan - Deer Island, MA (Field Team Member:
2005)

Mr. Gill served as Field Team Member who developed an emissions control plan
for compliance with the NOx budgeting program. The control plan contains
operating parameters for the turbines, schematic drawings, NOx monitoring
equipment, and testing protocols to determine the accuracy and precision of the
monitoring plan.

LG-Caltex, Yochon, Emission Inventory — South Korea (Team Member:
2004)

Mr. Gill served as part of a team sent to South Korea to perform a complete
emission inventory for an oil refinery. Reviewed piping and instrumentation
drawings (P&IDs) for the entire facility to speciate the different process streams
and count all valves, pumps, flanges, and other possible sources of fugitive
emissions. These counts were then used to estimate total fugitive emissions
from each of the process areas. Worked on a tanks database to estimate the

loading areas.

General Motors Corp, Titie V Permitting — Ml, OH, and NY (Field Team
Member: 2003)

Mr. Gill served as Field Team Member who assisted in comprehensive Title V
permitting effort for twenty different facilities. Performed on-site inventories and
gathered data for compliance audits. Developed electronic emission inventories
complete with actual and potential emission calculations for future updates.
Determined the applicability of state and federal regulations to each facility based
on the inventory reports. Entered data electronically onto permit application

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forms. Helped with final review of other GM facilities Title V permits, ensuring
that all information was correct and complete.

Air Products and Chemicals, Inc, Title V Permitting, Hopkington, MA and
Eastern Utilities - Somerset, MA (Field Team Member: 2004)

Mr. Gill served as Field Team Member who assisted in comprehensive Title V
permitting effort. Entered data electronically onto DEP forms. Helped with final
review of permit, ensuring that all information was correct and complete.

General Electric, Title V Permit Application Development — Lynn, MA
(Field Team Member: 2003)

Mr. Gill served as Field Team Member who updated emissions inventory and
emission calculations for combustion sources, boilers, emergency generators,
degreasers, small paint booths and metal grinding operations. Assisted in filling
out the Title V application. It is currently under final review for submittal to the
state.

Textron Defense Systems, Comprehensive Title V Permitting — Wilmington,
MA (Field Team Member: 2004)

Mr. Gill served as Field Team Member who completed updating emissions
inventories and emission caiculations for the three facilities ((2) research and
development, and (1) production). Completed Restricted Emission Status Permit
forms for two of three facilities restricting fuel use in the boilers to avoid Title V
permitting. Filled out the Title V application for the third facility which has been
received by the state and waiting final approval.

Santee Cooper, Grainger and Jefferies Power Generating Stations,
Comprehensive Title V Permitting — South Carolina (Field Team Member:
2004)

Mr. Gill served as Field Team Member who performed all emission calculations
and assisted in the state and federal regulations review. Organized all the
information and compiled two different complete South Carolina Title V
applications for the different facilities.

Sturm and Ruger, Title V Permit Application Development — Newport, NH
(Field Team Member: 2005)

Mr. Gill served as Field Team Member who developed an emissions inventory
including casting and foundry activities. Also worked on determining the
applicability of the state and federal regulations to the facility in preparation for
filing a Title V application.

Miscellaneous Permitting Work

Other Title V work, Performed a complete plant surrey checking for possible
noncompliance issues while conducting an intensive emissions inventory for
General Motors in preparing them for filing a Title V application. Set up emission
calculation spreadsheets in Excel and Lotus for the City of Vineland Municipal

Electric Utility, Morton International, Army Research Lab Watertown, and Public
Services Colorado. Set up air modeling for Arco Channelview.

Emissions Testing

PPL Landfill Gas Recovery (now EPP) — Various Locations (Project
Manager 2000 - Present)

Worked with PPL to test engines and flares burring landfill gas. Optimized
engine operation to maximize power generation and minimum emissions. Flare
testing was to maximize methane production from landfill to minimize
supplemental fuel use.

BFI Gas Recovery Services (now Fortistar) — Various Locations (Project
Manager 2000 - Present)

Worked with BFI to test engines and flares burring landfill gas. Optimized engine
operation to maximize power generation and minimum emissions. Flare testing
was to maximize methane production from landfill to minimize supplemental fuel
use.

Newington Power Generation Station — Initial Compliance/Performance
Testing (Key Operator: 2002)

Part of the air emission testing team to demonstrate compliance with the state
operating permit and the manufacture performance guarantee. Performed the
testing while the plant was operating on natural gas then repeated the testing
while firing oil. Parameters monitored were NOx, CO, Oz, PMio, Opacity, SOz2,
VOC, and NH3.

Newington Power Generation Station — Annual Compliance Testing (Field
Team Leader: 2003 - 2007)

Mr. Gill served as Field Team Leader. TRC conducted compliance emissions
testing on the unit to demonstrate compliance with the state permit emission
limits (CO, NOx, SOz, and NHs) from the New Hampshire Air Resource Division
(NHARD). Responsible for the analytical instruments used during all the gas
RATAs. The EPA test methods utilized during the program are found in the 40
CFR Part 60, Appendix A.

Mt. Tom Power Generation Station - RATAs and Mercury Testing (Field
Team Leader: 2006 - 2011)

Worked on the mercury monitoring system by collecting samples from the
calibrator to verify its output calibration concentration. Performed several gas
RATAs to demonstrate the mercury monitoring system was functioning properly.
Also was the field team lead in several other gas and flow RATA testing
programs.

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Mt. Tom Power Generation Station — Turbo-Sorb Initial Compliance (Key
Operator: 2009)

Worked on the team to commission the new Turbo-Sorb System. My role was
the onsite mercury analyst. | collected the stack gas on the carbon tubes then
using the Ohio-Lummex analyzed the tubes to report the mercury concentrations.

New England Power Plants, FTIR —- Ammonia — NE (Key Operator: 2001 -
2011)

Mr. Gill served as the key operator during diagnostic testing on newly installed
SCR units. Specifically, the FTIR was used to determine the ammonia slip on
several new power plants with ammonia injection for NOx control. The sample
probe was traversed across the catalyst to tune the injection grid to minimize the
ammonia slip.

concentration and emission rate for HCL and formaldehyde.

SPECIALIZED TRAINING
e 40-Hour Hazwoper Training
National Registered EMT
First aid and CPR instructor
Radiation Safety Training
FTIR Training
XRF Spectrum Analyzer Training
TWIC Card (Transportation Worker Identification Card)

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PROFESSIONAL AFFILIATIONS
¢ American Institute of Chemical Engineers

~©@TRC

Results you can rely on

LISA K KROWITZ
Data Validation

Lisa Krowitz has over 25 years of experience in environmental analytical chemistry, providing
QA/QC oversight related to laboratory analysis, data review, data validation, and data usability.
She performs data validation and/or data usability evaluations of VOCs, SVOCs, PAHs, PCBs,
petroleum hydrocarbons, pesticides, metals, wet chemistry (e.g., cyanide and hexavalent
chromium), and radiclogical isotopes on a variety of matrices (aqueous, soil, sediment, air, and
tissue samples). Ms. Krowitz has extensive experience with oversight of analytical laboratories.
She also has experience in field sampling, soil gas surveys, field audits, and laboratory audits, and
in preparing QAPPs, specifically under the Uniform Federal Policy for QAPPs.

CREDENTIALS

Education/Training

« M.S., Environmental Science, University of Illinois-Champaign Urbana

e B.A., Chemistry, Wheaton College, Norton, MA

e Multi-Agency Radiological Laboratory Analytical Protocols (MARLAP) Training
e 40-Hour OSHA Hazardous Waste Operations Training

Areas of Expertise

* Data Review, Data Validation, Data Usability
* Quality Assurance/Quality Control

© Field and Laboratory Audits

@ Field and Laboratory Analyses

SELECT PROJECT EXPERIENCE

Remedial Investigation/Remedial Action Investigation — N}

Provided data review and usability technical oversight on the investigation, assessment, and
remediation of soil and aqueous matrices contaminated with hexavalent chromium. Responsible
for providing oversight of two analytical laboratories and for coordination of data review, DV, and
data usability for all parameters based on the NJDEP and EPA Region 2 DV Standard Operating
Procedures (SOPs) and/or the NJDEP Data of Known Quality Data Quality Assessment (DQA)/Data
Usability Evaluation (DUE) protocols. Communicated frequently with the laboratories to ensure
proper receipt of samples, proper utilization of project-specific analytical protocols in order to
achieve necessary project action levels, and to monitor the overall performance of the
laboratories.

Remedial Investigation — IN

Assisted in the preparation of the QAPP and updated as applicable for multiple phases of the
program. Aliso responsible for providing QA support to the field team and coordinated with
laborataries to ensure achievement of risk-based standards. Ms. Krowitz either performed or
provided oversight of data validation of aqueous, soil, and solid samples for metals and
radiological isotopes.

Previous Experience

AECOM — Chelmsford, MA

QA Chemist: Managed and procured analytical laboratories and data validation firms; QAPP
preparation, data review, data validation, and data usability of a variety of inorganic and organic
parameters in accordance with EPA National Functional Guidelines, EPA Regions 1 and 2, and
various state agencies. Trained staff in data validation.

Metcalf & Eddy, Inc. - Wakefield, MA
QA Chemist: Performed data validation of CLP inorganic, CLP organic, and radiological data in
accordance with EPA Region 1 DV Guidelines and trained staff in data validation.

Gradient Corporation — Cambridge, MA

QA Chemist: Performed data validation and data usability evaluations on inorganic, organic, and
radionuclide isotope data in accordance with EPA Region 1, EPA National Functiona! Guidelines,
and NYSDEC DUSR. Prepared QAPPs and conducted laboratory oversight, field audits,
radiochemistry laboratory audits, and field sampling.

650 Suffolk Street, Lowell, MA, USA 01854

www.tresolutions.com

Tel: 978.656.3544 Email: LKrowitz@trcsolutions.com

TRC

Results you can rely on

CDM Corporation ~— Boston, MA
Environmental Scientist: Performed data validation of CLP inorganic and organic data in
accordance with EPA Region 1 DV Guidelines; performed field sampling audits.

NUS Corporation — Bedford, MA

Chemistry Program Coordinator: Lead Chemist under the EPA Region 1 program. Supervised staff
on data validation of CLP inorganic and organic data in accordance with EPA Region 1. Actively
involved in EPA Field Methods Workgroup.

Laboratory Program Coordinator: Supervised the analysis of samples collected in the field for
VOCs by portable GC, performed laboratory analyses using XRF and GC/ECD, and conducted soil
gas surveys.

illinois Geological Survey — Champaign, IL
Jr. Scientist: Analyzed aqueous and air sampies for radon-222 and gross alpha/beta radioactivity
by liquid scintillation and gas flow proportional counting methods.

Cambridge Analytical Associates — Boston, MA

Wet Chemistry and Metals Digestion technician. Digested soil and water samples according to CLP
and SW846 protocols for analysis of metals. Analyzed samples for various wet chemistry
parameters, specifically cyanide, sulfate, nitrate, and nitrite.

650 Suffolk Street, Lowell, MA, USA 01854

WWW. trcsoiutions.com

Tel: 978.656.3544 Email: LKrowitz@trcsolutions.com

"

©TRC

Results you can raiy on

Gregory E. Pearsall,

EDUCATION

B.S., Environmental Science, University of New Hampshire, 2016

PROFESSIONAL REGISTRATIONS/CERTIFICATIONS
Certified Maine Underground Storage Tank Inspector, (#496), 2017
Massachusetts UST Class A/B Operator License, (#142438), 2017

AREAS OF EXPERTISE

Mr. Pearsall has technical experience in the following general areas:
* Underground Storage Tank Management
e Soil Classification
e Ground Water Sampling

REPRESENTATIVE EXPERIENCE

Mr. Pearsall has conducted inspections and maintenance on underground
Storage tanks and facilities. He has performed numerous groundwater
monitoring and sampling, surface water and air monitoring sampling events.

SPECIALIZED TRAINING
¢ Forty-Hour OSHA HASWOPER, September 2017
e Ten-Hour OSHA Construction, March 2018