Team

The diverse backgrounds of the EnviroScience team of biologists, environmental engineers, scientists, and divers enable us to provide an integrated approach to solving any environmental challenge—saving clients time, reducing costs, and ensuring high-quality results. Consult our experts today!

Executive Leaders

  • Greg Zimmerman

  • Jamie Krejsa

  • Marty Hilovsky

Operations

  • Dave Czayka

  • Jamie Willaman

Business Development & Marketing

  • Patrick Geraghty

  • Clement Riddle

  • Jack Shaner

  • Greg Hocevar

  • Greg Zimmerman

Health, Safety, & Environment

  • Tim Willaman

Aquatic Survey

  • Tiffany Moore

  • David Altfater

  • Eric Romaniszyn

  • Rhonda Mendel

  • Kevin Reed

  • Philip Mathias

  • Dave Czayka

  • Maddie Genco

  • Nicole Stolic

  • Scott LaValley, MS

  • Abbie Clasgens

Commercial Diving Services

  • Patrick Evankovich

Ecological Restoration

  • Julie Bingham

  • Angelina Hotz, PE

  • Jim Moyer, PE

  • Jeff Niehaus

  • Elizabeth Myers

  • Tom Prewitt

  • Keli Stambaugh, PMP

  • Brendan Morgan

Ecological Services

  • Michael Marefka

  • Dr. Kevin Custer

  • Dr. Christina Voorhees, CWB

  • Dr. Michael Liptak

  • Krista Tomasello

  • Brendan Morgan

  • Chuck Kessler, AICP, CEP

  • Dave Czayka

  • Nicole Stolic

  • Scott LaValley, MS

  • Reiss Warren

Emergency Response

  • Krista Tomasello

  • Max Koran

  • Tim Ator

  • Dave Czayka

Endangered Mussel Surveys

  • Mike deMoulpied

  • Rebecca Winterringer

  • Philip Mathias

  • Marty Huehner, PhD

  • Chuck Howard

  • Scott LaValley, MS

  • Greg Zimmerman

Laboratory & Analysis

  • Melissa Vaccarino

  • Jennifer Vydra

  • Brad Bartelme

  • Alex Tite

  • Maddie Genco

  • Alison Frohn

  • Kyle Scotese

Stormwater Management

  • Cliff Myers

  • Angelina Hotz, PE

  • Kevin Wienhold, PE

  • Jim Sargiovanni

  • Israel Merkle

  • Matt Banas

  • Keli Stambaugh, PMP

Sustainability Services

  • Aana Agrawal

Threatened & Endangered Species

  • Emily Tarsa, Ph.D.

  • Dr. Christina Voorhees, CWB

  • Rex Everett

  • Teal Richards-Dimitrie

  • Rebecca Winterringer

  • Philip Mathias

  • Marty Huehner, PhD

  • Jamie Willaman

  • Stan Boder

Wetlands & Streams

  • Mike Naymik

  • Emily Tarsa, Ph.D.

  • Eric Romaniszyn

  • Rex Everett

  • Clement Riddle

  • Sean Kline

  • Dr. Michael Liptak

  • Elise Bartelme

  • Laura Sayre

  • Emmalisa Kennedy, PWS

  • Scott LaValley, MS

  • Tyson Kurtz, PWS

Environmental Compliance Services

  • Dr. Kevin Custer

  • Dan Schweitzer

  • Elizabeth Wick, P.E.

  • Sheila Rayman, P.E.

  • Dominic Nardis

  • Cory Fox

  • Tim Ator

  • Chuck Kessler, AICP, CEP

Few environmental firms in the country retain EnviroScience’s degree of scientific know-how, talent, and capability under one roof. The diverse backgrounds of our biologists, environmental engineers, scientists, and divers enable us to provide comprehensive in-house services and an integrated approach to solving environmental challenges—saving clients time, reducing costs, and ensuring high-quality results.

Our client guarantee is to provide “Excellence in Any Environment” meaning no matter what we do, we will deliver on our Core Values of respect, client advocacy, quality work, accountability, teamwork, and safety. EnviroScience was created with the concept that we could solve complex problems by empowering great people. This concept still holds true today, as our scientists explore the latest in environmental legislation and regulations and incorporate the most up-to-date technology to gather and report data.

EnviroScience expertise includes but is not limited to: aquatic survey (including macroinvertebrate surveys and biological assessments); ecological restoration; ecological services (including impact assessments, invasive species control, and water quality monitoring);  emergency response; engineering and compliance services; endangered mussel surveys; laboratory and analysis; stormwater management; threatened and endangered species; and wetlands and streams (including delineation and mitigation). Further, EnviroScience is one of the few biological firms in the country that is a general member of the Association of Diving Contractors International (ADCI) and offers full-service commercial diving services.