Hollaway has played an integral role in nearly every major coastal planning project in the state of Texas, working side by side with entities such as USACE, GLO, TPWD, TWDB, TxDOT, Harris County/HCFCD, and the GCCPRD to promote inter-agency collaboration, engage with the public/stakeholders, build consensus, and advance integrated resiliency efforts.
No other firm has Hollaway’s depth of involvement and breadth of understanding across the various complimentary programs advancing coastal resiliency efforts in Texas.
Examples of Hollaway’s coastal planning experience, covering coastal storm risk management, erosion control, and ecosystem restoration, include:
Hollaway provided comprehensive communications, interagency coordination, stakeholder engagement and public outreach, and consensus building services for this $26B coastal storm risk management and ecosystem restoration program. Effort also included comprehensive review of economic and benefic-cost analysis for the proposed coastal storm risk management and ecosystem restoration measures, as well as development of the 2021 Feasibility Study Final Report.
To support this $4B coastal storm risk management program in the Pre-Construction Engineering and Design Phase, Hollaway provides environmental planning and consulting services, as well as comprehensive communications, stakeholder engagement, and consensus building services.
Since the plan’s inception in 2016, Hollaway has provided stakeholder engagement and education efforts and graphic design/document preparation services. Hollaway designed the 2017, 2019, and 2023 versions of the State of Texas’ Coastal Resiliency Master Plan, which provides a framework for community, socio-economic, ecologic and infrastructure protection from coastal hazards including erosion and storm surge.
In 2018, Hollaway began working with a commercial development group to consult on a planned development along the Texas Gulf Coast. Over the five-year project, Hollaway supported the client in studying and identifying environmental constraints, conducting environmental surveys, and preparing and submitting Clean Water Act (CWA) permits.
Your Environmental Services Team of Specialists:
We provide a complete team of experts to support you at every stage of the process.
John Simmons
Sam Blanco, AICP, PMP
Molly Lenihan
Carmin Romero
Monty Criswell
Rose Gremillion
Kenna Dixon
Travis Lay
Will Chapin
Tyler Henk
GIS Analyst
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.
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.
Sr Environmental Scientist II and Team Lead - Houston
Molly Lenihan
Molly Lenihan joined Hollaway in 2020 and is a Senior Environmental Scientist II + Team Lead – Houston 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.
Environmental Scientist
Carmin Romero
Carmin Romero supports the Hollaway Environmental + Communications Services team as an 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.
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.
GIS Specialist
Rose Gremillion
Rose Gremillion joined Hollaway as a GIS Specialist in Spring 2025 with over three years of experience working in environmental due diligence. As a former Geoscientist-in-Training (GIT), her professional experience is concentrated in Phase I and II Environmental Site Assessments, ecological baseline surveys, and similar consulting services. During her time as a consultant, she has also practiced as a geospatial analyst, developing her skillset to meet client, industry, and project-specific needs. She now provides support for the Hollaway team with GIS services, data analysis, and technical review.
Associate Environmental Scientist
Kenna Dixon
Kenna Dixon contributes to Hollaway’s environmental practice as an Associate Environmental Scientist, supporting the team on wetland delineations, Phase I Environmental Site Assessments, threatened and endangered species assessments, and a range of other environmental services. She has worked across transportation infrastructure, flood mitigation, private development, and coastal mitigation projects — a breadth that strengthens Hollaway’s ability to serve clients across sectors.
Senior Environmental Scientist II
Travis Lay
Travis Lay contributes to Hollaway’s environmental practice as a Senior Environmental Scientist II, bringing nearly a decade of experience across environmental consulting, government response, and offshore energy projects. He supports clients through wetland delineations, threatened and endangered species assessments, Phase I Environmental Site Assessments, and environmental permitting documentation — combining technical analysis, field experience, and project management on every assignment. Travis’s background in offshore environments and safety-critical operations adds practical insight to field investigations and project planning, giving Hollaway a strong blend of regulatory knowledge and field-tested expertise across infrastructure and energy development.
Senior Environmental Scientist II
Will Chapin
Will Chapin joined Hollaway in 2026 as a Senior Environmental Scientist II, bringing eight years of experience across environmental and grant services. Based out of the Central Texas office, he serves as a project manager and field lead with deep expertise in National Environmental Policy Act (NEPA) compliance, wetland delineations, threatened and endangered species habitat assessments, state and federal grant infrastructure projects, TxDOT EAs and EISs, and Phase I Environmental Site Assessments. Will’s project portfolio spans oil and gas developments, private and public housing, transportation infrastructure, and large-scale flood reduction efforts — a depth of experience that anchors Hollaway’s environmental practice across both regulatory and grant-funded work.
Environmental Scientist
Tyler Henk
Tyler Henk joined Hollaway in 2025 as an Environmental Scientist, bringing over three years of experience in environmental consulting. He supports the team as a field crew member, technical report author, and reviewer, with specialized expertise in USACE jurisdictional wetland delineations, threatened and endangered species habitat assessments and monitoring, Phase I Environmental Site Assessments, migratory bird surveying, and post-construction fatality monitoring across Texas and Louisiana. Tyler’s project portfolio spans TxDOT roadway expansions, oil and gas pipelines, wind and solar development, levee construction, port dredging and permitting, and rare plant surveys — a versatility that strengthens Hollaway’s reach across infrastructure, energy, and natural resource sectors.