Horizon Staff

To view a staff member's résumé summary, please click on his or her name. The résumé summaries are in Adobe Acrobat PDF format.

JoAnn Wiersema, President
Corporate Management, Project Management, Human Toxicology, Animal Toxicology, Health Effects Review of Air Monitoring Data, Health Effects of Air Pollution, Risk Communication

Lynda Sherrod, Vice President
Corporate Management, Project Management, Marketing, and Client Coordination

Jim Wiersema, Vice President
Water Resources, Permitting Assistance: NPDES/TPDES, State Water Quality, Water Rights, 404/10, RCT, SRF EAs, Threatened or Endangered Species, Mitigation Banking, Aquatic Ecology, Fisheries, Pond Design and Management

Lee Sherrod, Vice President
Wetlands, Threatened or Endangered Species, Section 10(a) Permit Assistance, Vegetation and Wildlife, 404/10 Permit Assistance, Mitigation Banking, Stormwater Permit Assistance, ROW Studies, NEPA Environmental Assessments

Shannon Dorsey, Principal, Ecology Group Manager
Phase I and II Environmental Site Assessments, Wetlands, 404/10 Permit Assistance, ROW Studies (Environmental Inspection), Threatened or Endangered Species, FERC Requirements, Stormwater Permit Assistance

Russ Brownlow, Principal, Cultural Resources Director
CRM Surveys, Testing, Mitigation, Section 106 Compliance, Texas Antiquities Code Compliance, Register of Professional Archeologists Certified, and meets Secretary of the Interior Standards and Guidelines for Archeology

John Alesch
Computer Graphics, GIS, CAD, Geologic Drafting, Surface Modeling, Land Surface and Potentiometric Surface Contouring, Boring Log/Geophysical Log Generation, General Mapping

Bill Bauer
Document Editing and Report Production

Kris Billings
Phase I Environmental Site Assessment project support, City of Austin Environmental Assessments, City of Austin Habitat Assessments, Report exhibit generation, Phase II sample collection, Central Texas Threatened or Endangered Species Survey, CRM Surveys

Cora Caffey
Reception and Administrative Support

Ashley Caldwell
Human Resources, Office Management, and Administrative Support

Chris Carrell
Wetland Delineation, Section 404 Permitting, Threatened/Endangered Species Surveys and Permitting, Wildlife Ecology, Habitat Restoration, Wildlife and Game Management

Jennifer Cochran

Michelle Dorsey
Wildlife Biology, Water Quality Monitoring, Environmental Site Assessments, Phase I Environmental Site Assessments, Research and Reports, Threatened or Endangered Species, Habitat Assessments

Scott Flesher
Wetlands, 404/10 Permit Assistance, Threatened or Endangered Species, Habitat Assessments, Phase I Environmental Site Assessments, Research and Reports, Computer Graphics, GIS Mapping, Figure Generation, General Mapping

Rachel McCarter
Section 404 Jurisdictional Determinations/Delineations, Phase I Environmental Site Assessment, Mitigation, Research, Field Investigation, GIS Mapping

Michael Mudd
CRM Surveys, Testing, Mitigation, Section 106 Compliance, Texas Antiquities Code Compliance

Jesse Owens
Archaeological Principal Investigator/Project Manager. CRM Surveys, Eligibility Testing, Mitigation & Data Recovery Projects; Research Designs and Cultural Resource Management Plans; NHPA Section 106 Compliance; FERC Document Preparation & Compliance Monitoring; Native American Consultation; Texas Antiquities Code Compliance; TxDOT Precertified; Register of Professional Archeologists Certified; Meets Secretary of the Interior Standards and Guidelines for Archeology

Greg Sherrod
Phase I ESA Project Support, Field Investigation, Project Record Searches, Threatened/ Endangered Species Surveys and 10(a) Permitting, City of Austin Environmental and Habitat Assessments, Section 404 Jurisdictional Determinations/Delineations, Karst Surveys

Jared Wiersema
CRM Surveys, Testing, Mitigation, Section 106 Compliance, Texas Antiquities Code Compliance