We support our clients by delivering in-person and web-based training seminars and presentations to promote environmental regulatory awareness. This includes training about regulatory permitting requirements, wetlands and waters of the US, SWPPP compliance, and effective community engagement, among other topics.

More than improving and enhancing the knowledge base of your people, our Environmental Training services are an investment in your organization that can lead to reducing environmental liability and, in turn, reducing costs.

“We take the time to listen to you and truly custom fit our approach to best meet your needs.”

– Leslie Hollaway, CEO

We have conducted environmental training seminars for clients that include:

  • Harris County Flood Control District
  • Harris County Engineering Department
  • Houston Airport System
  • Port of Houston Authority
  • Private Industry
  • Conferences

Flexible and customized training

Our trainings are offered in a variety of methods to fit a variety of needs and cover topics from federal and state environmental regulations to emerging industry trends and opportunities. Our experienced team members bring deep regulatory knowledge to each and every training to help navigate regulatory challenges and achieve a successful project outcome.

Your Environmental Services Team of Specialists:

We provide a complete team of experts to support you at every stage of the process.

Taffeta Burleson
Associate Environmental Scientist

Taffeta Burleson

John Simmons
Environmental Scientist + GIS Specialist

John Simmons

Sam Blanco, AICP, PMP
Vice President of Statewide Environmental Services

Sam Blanco, AICP, PMP

Kasey Clarke, WPIT
Sr Environmental Scientist II

Kasey Clarke, AWB, WPIT

Molly Lenihan
Sr Environmental Scientist I

Molly Lenihan

Chris Garza
GIS Specialist + Sr Environmental Scientist I

Chris Garza

Carmin Romero
Associate Environmental Scientist

Carmin Romero

Justin Tassin
Senior Environmental Scientist I

Justin Tassin

Monty Criswell
Senior Environmental Scientist II

Monty Criswell

Taffeta Burleson

Associate Environmental Scientist

Taffeta Burleson

Taffeta Burleson supports the Hollaway Environmental + Communications Services team as an Associate Environmental Scientist. She has gained experience in a wide range of environmental services during her time with HECS, including Phase I Environmental Site Assessments, wetland delineations, and threatened and endangered species assessments. She supports an array of projects including mitigation, transportation, and municipal infrastructure. She brings with her a strong skillset in field research, data analysis, and GIS mapping.

John Simmons

Environmental Scientist + GIS Specialist

John Simmons

John Simmons has over four years of experience working in both the private and public sectors, serving as a scientist and natural resource specialist. Since joining the HECS team, he has gained experience in Phase I Environmental Site Assessments, wetland delineations, constraints analyses, and threatened and endangered species assessments. He has supported HECS in a variety of projects, including private development and public works. He brings with him a background in geology, environmental science, and remote sensing.

Sam Blanco, AICP, PMP

Vice President of Statewide Environmental Services

Sam Blanco, AICP, PMP

Sam Blanco oversees Hollaway’s environmental practice. He is a NEPA practitioner with over 21 years of experience in consulting and government, and has managed environmental on-call contracts for TxDOT; large municipalities; and the nation’s largest public power, natural gas, and electric company. He has conducted NEPA and related studies for projects in Texas, Louisiana, Nevada, Wyoming, Nebraska, South Dakota, New Mexico, and the Mexican States of Chihuahua and Nuevo Leon.

Kasey Clarke, WPIT

Sr Environmental Scientist II

Kasey Clarke, AWB, WPIT

Kasey Clarke has a wide variety of experience in environmental services including wetland delineations, Clean Water Act permitting, threatened and endangered species habitat surveys, oyster surveys, freshwater mussel surveys, mitigation monitoring, and Phase I Environmental Site Assessments. She has managed an array of projects for federal and state agencies, municipalities, and private developers involving transportation improvements, stormwater facilities, utility lines, coastal dredging, and much more.

Molly Lenihan

Sr Environmental Scientist I

Molly Lenihan

Molly Lenihan joined Hollaway in 2020 and is a Senior Environmental Scientist with extensive experience in wetland delineations, threatened and endangered species habitat assessments, Phase I Environmental Site Assessments, Clean Water Act permitting, National Environmental Policy Act documentation, and a variety of other environmental services. She has managed numerous projects, ranging from large-scale flood reduction projects to small, single family residential developments. She supports the Hollaway team as a project manager, field lead, technical writer, and reviewer.

Chris Garza

GIS Specialist + Sr Environmental Scientist I

Chris Garza

Chris Garza has nearly 10 years of professional experience with Texas ecology and over 12 years of experience in Geographic Information Systems (GIS). Chris’ career has focused on landscape management, ecosystem restoration, tree surveys, plant inventories, wetland delineations, threatened & endangered species habitat assessments, and Phase I Environmental Site Assessments (ESAs). Chris brings much to the Hollaway as a project manager, GIS specialist, technical writer, reviewer, and a field lead.

Carmin Romero

Associate Environmental Scientist

Carmin Romero

Carmin Romero supports the Hollaway Environmental + Communications Services team as an Associate Environmental Scientist. Since joining the HECS team, she has gained experience in Phase I Environmental Site Assessments, wetland delineations, and threatened and endangered species assessments, and much more. She brings with her a background in environmental science, data analysis, and in air emission testing.

Justin Tassin

Senior Environmental Scientist I

Justin Tassin

Justin Tassin brings eight years of experience in environmental and economic development projects to Hollaway Environmental + Communications Services. As a Senior Environmental Scientist I, Justin specializes in wetland delineations, Phase 1 Environmental Site Assessments, Clean Water Act permitting, and endangered species habitat assessments. He excels in producing environmental compliance documents under the National Environmental Policy Act (NEPA), GIS Mapping, and coordinating stakeholder outreach for environmental and economic development initiatives.

Monty Criswell

Senior Environmental Scientist II

Monty Criswell

Monty Criswell joined Hollaway in 2024 as a Senior Environmental Scientist II, bringing eight years of experience in environmental services. His expertise includes wetland delineations, threatened and endangered species habitat assessments, presence/absence surveys, and Phase I Environmental Site Assessments. Monty has contributed to a wide range of projects, including oil and gas developments, renewable energy initiatives, transportation infrastructure, mitigation banking, utility line installations, and coastal restoration efforts.